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./openssl/crypto/modes/ocb128.c | /*
* Copyright 2014-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <string.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#include "crypto/modes.h"
#ifndef OPENSSL_NO_OCB
/*
* Calculate the number of binary trailing zero's in any given number
*/
static u32 ocb_ntz(u64 n)
{
u32 cnt = 0;
/*
* We do a right-to-left simple sequential search. This is surprisingly
* efficient as the distribution of trailing zeros is not uniform,
* e.g. the number of possible inputs with no trailing zeros is equal to
* the number with 1 or more; the number with exactly 1 is equal to the
* number with 2 or more, etc. Checking the last two bits covers 75% of
* all numbers. Checking the last three covers 87.5%
*/
while (!(n & 1)) {
n >>= 1;
cnt++;
}
return cnt;
}
/*
* Shift a block of 16 bytes left by shift bits
*/
static void ocb_block_lshift(const unsigned char *in, size_t shift,
unsigned char *out)
{
int i;
unsigned char carry = 0, carry_next;
for (i = 15; i >= 0; i--) {
carry_next = in[i] >> (8 - shift);
out[i] = (in[i] << shift) | carry;
carry = carry_next;
}
}
/*
* Perform a "double" operation as per OCB spec
*/
static void ocb_double(OCB_BLOCK *in, OCB_BLOCK *out)
{
unsigned char mask;
/*
* Calculate the mask based on the most significant bit. There are more
* efficient ways to do this - but this way is constant time
*/
mask = in->c[0] & 0x80;
mask >>= 7;
mask = (0 - mask) & 0x87;
ocb_block_lshift(in->c, 1, out->c);
out->c[15] ^= mask;
}
/*
* Perform an xor on in1 and in2 - each of len bytes. Store result in out
*/
static void ocb_block_xor(const unsigned char *in1,
const unsigned char *in2, size_t len,
unsigned char *out)
{
size_t i;
for (i = 0; i < len; i++) {
out[i] = in1[i] ^ in2[i];
}
}
/*
* Lookup L_index in our lookup table. If we haven't already got it we need to
* calculate it
*/
static OCB_BLOCK *ocb_lookup_l(OCB128_CONTEXT *ctx, size_t idx)
{
size_t l_index = ctx->l_index;
if (idx <= l_index) {
return ctx->l + idx;
}
/* We don't have it - so calculate it */
if (idx >= ctx->max_l_index) {
void *tmp_ptr;
/*
* Each additional entry allows to process almost double as
* much data, so that in linear world the table will need to
* be expanded with smaller and smaller increments. Originally
* it was doubling in size, which was a waste. Growing it
* linearly is not formally optimal, but is simpler to implement.
* We grow table by minimally required 4*n that would accommodate
* the index.
*/
ctx->max_l_index += (idx - ctx->max_l_index + 4) & ~3;
tmp_ptr = OPENSSL_realloc(ctx->l, ctx->max_l_index * sizeof(OCB_BLOCK));
if (tmp_ptr == NULL) /* prevent ctx->l from being clobbered */
return NULL;
ctx->l = tmp_ptr;
}
while (l_index < idx) {
ocb_double(ctx->l + l_index, ctx->l + l_index + 1);
l_index++;
}
ctx->l_index = l_index;
return ctx->l + idx;
}
/*
* Create a new OCB128_CONTEXT
*/
OCB128_CONTEXT *CRYPTO_ocb128_new(void *keyenc, void *keydec,
block128_f encrypt, block128_f decrypt,
ocb128_f stream)
{
OCB128_CONTEXT *octx;
int ret;
if ((octx = OPENSSL_malloc(sizeof(*octx))) != NULL) {
ret = CRYPTO_ocb128_init(octx, keyenc, keydec, encrypt, decrypt,
stream);
if (ret)
return octx;
OPENSSL_free(octx);
}
return NULL;
}
/*
* Initialise an existing OCB128_CONTEXT
*/
int CRYPTO_ocb128_init(OCB128_CONTEXT *ctx, void *keyenc, void *keydec,
block128_f encrypt, block128_f decrypt,
ocb128_f stream)
{
memset(ctx, 0, sizeof(*ctx));
ctx->l_index = 0;
ctx->max_l_index = 5;
if ((ctx->l = OPENSSL_malloc(ctx->max_l_index * 16)) == NULL)
return 0;
/*
* We set both the encryption and decryption key schedules - decryption
* needs both. Don't really need decryption schedule if only doing
* encryption - but it simplifies things to take it anyway
*/
ctx->encrypt = encrypt;
ctx->decrypt = decrypt;
ctx->stream = stream;
ctx->keyenc = keyenc;
ctx->keydec = keydec;
/* L_* = ENCIPHER(K, zeros(128)) */
ctx->encrypt(ctx->l_star.c, ctx->l_star.c, ctx->keyenc);
/* L_$ = double(L_*) */
ocb_double(&ctx->l_star, &ctx->l_dollar);
/* L_0 = double(L_$) */
ocb_double(&ctx->l_dollar, ctx->l);
/* L_{i} = double(L_{i-1}) */
ocb_double(ctx->l, ctx->l+1);
ocb_double(ctx->l+1, ctx->l+2);
ocb_double(ctx->l+2, ctx->l+3);
ocb_double(ctx->l+3, ctx->l+4);
ctx->l_index = 4; /* enough to process up to 496 bytes */
return 1;
}
/*
* Copy an OCB128_CONTEXT object
*/
int CRYPTO_ocb128_copy_ctx(OCB128_CONTEXT *dest, OCB128_CONTEXT *src,
void *keyenc, void *keydec)
{
memcpy(dest, src, sizeof(OCB128_CONTEXT));
if (keyenc)
dest->keyenc = keyenc;
if (keydec)
dest->keydec = keydec;
if (src->l) {
if ((dest->l = OPENSSL_malloc(src->max_l_index * 16)) == NULL)
return 0;
memcpy(dest->l, src->l, (src->l_index + 1) * 16);
}
return 1;
}
/*
* Set the IV to be used for this operation. Must be 1 - 15 bytes.
*/
int CRYPTO_ocb128_setiv(OCB128_CONTEXT *ctx, const unsigned char *iv,
size_t len, size_t taglen)
{
unsigned char ktop[16], tmp[16], mask;
unsigned char stretch[24], nonce[16];
size_t bottom, shift;
/*
* Spec says IV is 120 bits or fewer - it allows non byte aligned lengths.
* We don't support this at this stage
*/
if ((len > 15) || (len < 1) || (taglen > 16) || (taglen < 1)) {
return -1;
}
/* Reset nonce-dependent variables */
memset(&ctx->sess, 0, sizeof(ctx->sess));
/* Nonce = num2str(TAGLEN mod 128,7) || zeros(120-bitlen(N)) || 1 || N */
nonce[0] = ((taglen * 8) % 128) << 1;
memset(nonce + 1, 0, 15);
memcpy(nonce + 16 - len, iv, len);
nonce[15 - len] |= 1;
/* Ktop = ENCIPHER(K, Nonce[1..122] || zeros(6)) */
memcpy(tmp, nonce, 16);
tmp[15] &= 0xc0;
ctx->encrypt(tmp, ktop, ctx->keyenc);
/* Stretch = Ktop || (Ktop[1..64] xor Ktop[9..72]) */
memcpy(stretch, ktop, 16);
ocb_block_xor(ktop, ktop + 1, 8, stretch + 16);
/* bottom = str2num(Nonce[123..128]) */
bottom = nonce[15] & 0x3f;
/* Offset_0 = Stretch[1+bottom..128+bottom] */
shift = bottom % 8;
ocb_block_lshift(stretch + (bottom / 8), shift, ctx->sess.offset.c);
mask = 0xff;
mask <<= 8 - shift;
ctx->sess.offset.c[15] |=
(*(stretch + (bottom / 8) + 16) & mask) >> (8 - shift);
return 1;
}
/*
* Provide any AAD. This can be called multiple times. Only the final time can
* have a partial block
*/
int CRYPTO_ocb128_aad(OCB128_CONTEXT *ctx, const unsigned char *aad,
size_t len)
{
u64 i, all_num_blocks;
size_t num_blocks, last_len;
OCB_BLOCK tmp;
/* Calculate the number of blocks of AAD provided now, and so far */
num_blocks = len / 16;
all_num_blocks = num_blocks + ctx->sess.blocks_hashed;
/* Loop through all full blocks of AAD */
for (i = ctx->sess.blocks_hashed + 1; i <= all_num_blocks; i++) {
OCB_BLOCK *lookup;
/* Offset_i = Offset_{i-1} xor L_{ntz(i)} */
lookup = ocb_lookup_l(ctx, ocb_ntz(i));
if (lookup == NULL)
return 0;
ocb_block16_xor(&ctx->sess.offset_aad, lookup, &ctx->sess.offset_aad);
memcpy(tmp.c, aad, 16);
aad += 16;
/* Sum_i = Sum_{i-1} xor ENCIPHER(K, A_i xor Offset_i) */
ocb_block16_xor(&ctx->sess.offset_aad, &tmp, &tmp);
ctx->encrypt(tmp.c, tmp.c, ctx->keyenc);
ocb_block16_xor(&tmp, &ctx->sess.sum, &ctx->sess.sum);
}
/*
* Check if we have any partial blocks left over. This is only valid in the
* last call to this function
*/
last_len = len % 16;
if (last_len > 0) {
/* Offset_* = Offset_m xor L_* */
ocb_block16_xor(&ctx->sess.offset_aad, &ctx->l_star,
&ctx->sess.offset_aad);
/* CipherInput = (A_* || 1 || zeros(127-bitlen(A_*))) xor Offset_* */
memset(tmp.c, 0, 16);
memcpy(tmp.c, aad, last_len);
tmp.c[last_len] = 0x80;
ocb_block16_xor(&ctx->sess.offset_aad, &tmp, &tmp);
/* Sum = Sum_m xor ENCIPHER(K, CipherInput) */
ctx->encrypt(tmp.c, tmp.c, ctx->keyenc);
ocb_block16_xor(&tmp, &ctx->sess.sum, &ctx->sess.sum);
}
ctx->sess.blocks_hashed = all_num_blocks;
return 1;
}
/*
* Provide any data to be encrypted. This can be called multiple times. Only
* the final time can have a partial block
*/
int CRYPTO_ocb128_encrypt(OCB128_CONTEXT *ctx,
const unsigned char *in, unsigned char *out,
size_t len)
{
u64 i, all_num_blocks;
size_t num_blocks, last_len;
/*
* Calculate the number of blocks of data to be encrypted provided now, and
* so far
*/
num_blocks = len / 16;
all_num_blocks = num_blocks + ctx->sess.blocks_processed;
if (num_blocks && all_num_blocks == (size_t)all_num_blocks
&& ctx->stream != NULL) {
size_t max_idx = 0, top = (size_t)all_num_blocks;
/*
* See how many L_{i} entries we need to process data at hand
* and pre-compute missing entries in the table [if any]...
*/
while (top >>= 1)
max_idx++;
if (ocb_lookup_l(ctx, max_idx) == NULL)
return 0;
ctx->stream(in, out, num_blocks, ctx->keyenc,
(size_t)ctx->sess.blocks_processed + 1, ctx->sess.offset.c,
(const unsigned char (*)[16])ctx->l, ctx->sess.checksum.c);
} else {
/* Loop through all full blocks to be encrypted */
for (i = ctx->sess.blocks_processed + 1; i <= all_num_blocks; i++) {
OCB_BLOCK *lookup;
OCB_BLOCK tmp;
/* Offset_i = Offset_{i-1} xor L_{ntz(i)} */
lookup = ocb_lookup_l(ctx, ocb_ntz(i));
if (lookup == NULL)
return 0;
ocb_block16_xor(&ctx->sess.offset, lookup, &ctx->sess.offset);
memcpy(tmp.c, in, 16);
in += 16;
/* Checksum_i = Checksum_{i-1} xor P_i */
ocb_block16_xor(&tmp, &ctx->sess.checksum, &ctx->sess.checksum);
/* C_i = Offset_i xor ENCIPHER(K, P_i xor Offset_i) */
ocb_block16_xor(&ctx->sess.offset, &tmp, &tmp);
ctx->encrypt(tmp.c, tmp.c, ctx->keyenc);
ocb_block16_xor(&ctx->sess.offset, &tmp, &tmp);
memcpy(out, tmp.c, 16);
out += 16;
}
}
/*
* Check if we have any partial blocks left over. This is only valid in the
* last call to this function
*/
last_len = len % 16;
if (last_len > 0) {
OCB_BLOCK pad;
/* Offset_* = Offset_m xor L_* */
ocb_block16_xor(&ctx->sess.offset, &ctx->l_star, &ctx->sess.offset);
/* Pad = ENCIPHER(K, Offset_*) */
ctx->encrypt(ctx->sess.offset.c, pad.c, ctx->keyenc);
/* C_* = P_* xor Pad[1..bitlen(P_*)] */
ocb_block_xor(in, pad.c, last_len, out);
/* Checksum_* = Checksum_m xor (P_* || 1 || zeros(127-bitlen(P_*))) */
memset(pad.c, 0, 16); /* borrow pad */
memcpy(pad.c, in, last_len);
pad.c[last_len] = 0x80;
ocb_block16_xor(&pad, &ctx->sess.checksum, &ctx->sess.checksum);
}
ctx->sess.blocks_processed = all_num_blocks;
return 1;
}
/*
* Provide any data to be decrypted. This can be called multiple times. Only
* the final time can have a partial block
*/
int CRYPTO_ocb128_decrypt(OCB128_CONTEXT *ctx,
const unsigned char *in, unsigned char *out,
size_t len)
{
u64 i, all_num_blocks;
size_t num_blocks, last_len;
/*
* Calculate the number of blocks of data to be decrypted provided now, and
* so far
*/
num_blocks = len / 16;
all_num_blocks = num_blocks + ctx->sess.blocks_processed;
if (num_blocks && all_num_blocks == (size_t)all_num_blocks
&& ctx->stream != NULL) {
size_t max_idx = 0, top = (size_t)all_num_blocks;
/*
* See how many L_{i} entries we need to process data at hand
* and pre-compute missing entries in the table [if any]...
*/
while (top >>= 1)
max_idx++;
if (ocb_lookup_l(ctx, max_idx) == NULL)
return 0;
ctx->stream(in, out, num_blocks, ctx->keydec,
(size_t)ctx->sess.blocks_processed + 1, ctx->sess.offset.c,
(const unsigned char (*)[16])ctx->l, ctx->sess.checksum.c);
} else {
OCB_BLOCK tmp;
/* Loop through all full blocks to be decrypted */
for (i = ctx->sess.blocks_processed + 1; i <= all_num_blocks; i++) {
/* Offset_i = Offset_{i-1} xor L_{ntz(i)} */
OCB_BLOCK *lookup = ocb_lookup_l(ctx, ocb_ntz(i));
if (lookup == NULL)
return 0;
ocb_block16_xor(&ctx->sess.offset, lookup, &ctx->sess.offset);
memcpy(tmp.c, in, 16);
in += 16;
/* P_i = Offset_i xor DECIPHER(K, C_i xor Offset_i) */
ocb_block16_xor(&ctx->sess.offset, &tmp, &tmp);
ctx->decrypt(tmp.c, tmp.c, ctx->keydec);
ocb_block16_xor(&ctx->sess.offset, &tmp, &tmp);
/* Checksum_i = Checksum_{i-1} xor P_i */
ocb_block16_xor(&tmp, &ctx->sess.checksum, &ctx->sess.checksum);
memcpy(out, tmp.c, 16);
out += 16;
}
}
/*
* Check if we have any partial blocks left over. This is only valid in the
* last call to this function
*/
last_len = len % 16;
if (last_len > 0) {
OCB_BLOCK pad;
/* Offset_* = Offset_m xor L_* */
ocb_block16_xor(&ctx->sess.offset, &ctx->l_star, &ctx->sess.offset);
/* Pad = ENCIPHER(K, Offset_*) */
ctx->encrypt(ctx->sess.offset.c, pad.c, ctx->keyenc);
/* P_* = C_* xor Pad[1..bitlen(C_*)] */
ocb_block_xor(in, pad.c, last_len, out);
/* Checksum_* = Checksum_m xor (P_* || 1 || zeros(127-bitlen(P_*))) */
memset(pad.c, 0, 16); /* borrow pad */
memcpy(pad.c, out, last_len);
pad.c[last_len] = 0x80;
ocb_block16_xor(&pad, &ctx->sess.checksum, &ctx->sess.checksum);
}
ctx->sess.blocks_processed = all_num_blocks;
return 1;
}
static int ocb_finish(OCB128_CONTEXT *ctx, unsigned char *tag, size_t len,
int write)
{
OCB_BLOCK tmp;
if (len > 16 || len < 1) {
return -1;
}
/*
* Tag = ENCIPHER(K, Checksum_* xor Offset_* xor L_$) xor HASH(K,A)
*/
ocb_block16_xor(&ctx->sess.checksum, &ctx->sess.offset, &tmp);
ocb_block16_xor(&ctx->l_dollar, &tmp, &tmp);
ctx->encrypt(tmp.c, tmp.c, ctx->keyenc);
ocb_block16_xor(&tmp, &ctx->sess.sum, &tmp);
if (write) {
memcpy(tag, &tmp, len);
return 1;
} else {
return CRYPTO_memcmp(&tmp, tag, len);
}
}
/*
* Calculate the tag and verify it against the supplied tag
*/
int CRYPTO_ocb128_finish(OCB128_CONTEXT *ctx, const unsigned char *tag,
size_t len)
{
return ocb_finish(ctx, (unsigned char*)tag, len, 0);
}
/*
* Retrieve the calculated tag
*/
int CRYPTO_ocb128_tag(OCB128_CONTEXT *ctx, unsigned char *tag, size_t len)
{
return ocb_finish(ctx, tag, len, 1);
}
/*
* Release all resources
*/
void CRYPTO_ocb128_cleanup(OCB128_CONTEXT *ctx)
{
if (ctx) {
OPENSSL_clear_free(ctx->l, ctx->max_l_index * 16);
OPENSSL_cleanse(ctx, sizeof(*ctx));
}
}
#endif /* OPENSSL_NO_OCB */
|
./openssl/crypto/modes/wrap128.c | /*
* Copyright 2013-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/** Beware!
*
* Following wrapping modes were designed for AES but this implementation
* allows you to use them for any 128 bit block cipher.
*/
#include "internal/cryptlib.h"
#include <openssl/modes.h>
/** RFC 3394 section 2.2.3.1 Default Initial Value */
static const unsigned char default_iv[] = {
0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6,
};
/** RFC 5649 section 3 Alternative Initial Value 32-bit constant */
static const unsigned char default_aiv[] = {
0xA6, 0x59, 0x59, 0xA6
};
/** Input size limit: lower than maximum of standards but far larger than
* anything that will be used in practice.
*/
#define CRYPTO128_WRAP_MAX (1UL << 31)
/** Wrapping according to RFC 3394 section 2.2.1.
*
* @param[in] key Key value.
* @param[in] iv IV value. Length = 8 bytes. NULL = use default_iv.
* @param[in] in Plaintext as n 64-bit blocks, n >= 2.
* @param[in] inlen Length of in.
* @param[out] out Ciphertext. Minimal buffer length = (inlen + 8) bytes.
* Input and output buffers can overlap if block function
* supports that.
* @param[in] block Block processing function.
* @return 0 if inlen does not consist of n 64-bit blocks, n >= 2.
* or if inlen > CRYPTO128_WRAP_MAX.
* Output length if wrapping succeeded.
*/
size_t CRYPTO_128_wrap(void *key, const unsigned char *iv,
unsigned char *out,
const unsigned char *in, size_t inlen,
block128_f block)
{
unsigned char *A, B[16], *R;
size_t i, j, t;
if ((inlen & 0x7) || (inlen < 16) || (inlen > CRYPTO128_WRAP_MAX))
return 0;
A = B;
t = 1;
memmove(out + 8, in, inlen);
if (!iv)
iv = default_iv;
memcpy(A, iv, 8);
for (j = 0; j < 6; j++) {
R = out + 8;
for (i = 0; i < inlen; i += 8, t++, R += 8) {
memcpy(B + 8, R, 8);
block(B, B, key);
A[7] ^= (unsigned char)(t & 0xff);
if (t > 0xff) {
A[6] ^= (unsigned char)((t >> 8) & 0xff);
A[5] ^= (unsigned char)((t >> 16) & 0xff);
A[4] ^= (unsigned char)((t >> 24) & 0xff);
}
memcpy(R, B + 8, 8);
}
}
memcpy(out, A, 8);
return inlen + 8;
}
/** Unwrapping according to RFC 3394 section 2.2.2 steps 1-2.
* The IV check (step 3) is responsibility of the caller.
*
* @param[in] key Key value.
* @param[out] iv Unchecked IV value. Minimal buffer length = 8 bytes.
* @param[out] out Plaintext without IV.
* Minimal buffer length = (inlen - 8) bytes.
* Input and output buffers can overlap if block function
* supports that.
* @param[in] in Ciphertext as n 64-bit blocks.
* @param[in] inlen Length of in.
* @param[in] block Block processing function.
* @return 0 if inlen is out of range [24, CRYPTO128_WRAP_MAX]
* or if inlen is not a multiple of 8.
* Output length otherwise.
*/
static size_t crypto_128_unwrap_raw(void *key, unsigned char *iv,
unsigned char *out,
const unsigned char *in, size_t inlen,
block128_f block)
{
unsigned char *A, B[16], *R;
size_t i, j, t;
inlen -= 8;
if ((inlen & 0x7) || (inlen < 16) || (inlen > CRYPTO128_WRAP_MAX))
return 0;
A = B;
t = 6 * (inlen >> 3);
memcpy(A, in, 8);
memmove(out, in + 8, inlen);
for (j = 0; j < 6; j++) {
R = out + inlen - 8;
for (i = 0; i < inlen; i += 8, t--, R -= 8) {
A[7] ^= (unsigned char)(t & 0xff);
if (t > 0xff) {
A[6] ^= (unsigned char)((t >> 8) & 0xff);
A[5] ^= (unsigned char)((t >> 16) & 0xff);
A[4] ^= (unsigned char)((t >> 24) & 0xff);
}
memcpy(B + 8, R, 8);
block(B, B, key);
memcpy(R, B + 8, 8);
}
}
memcpy(iv, A, 8);
return inlen;
}
/** Unwrapping according to RFC 3394 section 2.2.2, including the IV check.
* The first block of plaintext has to match the supplied IV, otherwise an
* error is returned.
*
* @param[in] key Key value.
* @param[out] iv IV value to match against. Length = 8 bytes.
* NULL = use default_iv.
* @param[out] out Plaintext without IV.
* Minimal buffer length = (inlen - 8) bytes.
* Input and output buffers can overlap if block function
* supports that.
* @param[in] in Ciphertext as n 64-bit blocks.
* @param[in] inlen Length of in.
* @param[in] block Block processing function.
* @return 0 if inlen is out of range [24, CRYPTO128_WRAP_MAX]
* or if inlen is not a multiple of 8
* or if IV doesn't match expected value.
* Output length otherwise.
*/
size_t CRYPTO_128_unwrap(void *key, const unsigned char *iv,
unsigned char *out, const unsigned char *in,
size_t inlen, block128_f block)
{
size_t ret;
unsigned char got_iv[8];
ret = crypto_128_unwrap_raw(key, got_iv, out, in, inlen, block);
if (ret == 0)
return 0;
if (!iv)
iv = default_iv;
if (CRYPTO_memcmp(got_iv, iv, 8)) {
OPENSSL_cleanse(out, ret);
return 0;
}
return ret;
}
/** Wrapping according to RFC 5649 section 4.1.
*
* @param[in] key Key value.
* @param[in] icv (Non-standard) IV, 4 bytes. NULL = use default_aiv.
* @param[out] out Ciphertext. Minimal buffer length = (inlen + 15) bytes.
* Input and output buffers can overlap if block function
* supports that.
* @param[in] in Plaintext as n 64-bit blocks, n >= 2.
* @param[in] inlen Length of in.
* @param[in] block Block processing function.
* @return 0 if inlen is out of range [1, CRYPTO128_WRAP_MAX].
* Output length if wrapping succeeded.
*/
size_t CRYPTO_128_wrap_pad(void *key, const unsigned char *icv,
unsigned char *out,
const unsigned char *in, size_t inlen,
block128_f block)
{
/* n: number of 64-bit blocks in the padded key data
*
* If length of plain text is not a multiple of 8, pad the plain text octet
* string on the right with octets of zeros, where final length is the
* smallest multiple of 8 that is greater than length of plain text.
* If length of plain text is a multiple of 8, then there is no padding. */
const size_t blocks_padded = (inlen + 7) / 8; /* CEILING(m/8) */
const size_t padded_len = blocks_padded * 8;
const size_t padding_len = padded_len - inlen;
/* RFC 5649 section 3: Alternative Initial Value */
unsigned char aiv[8];
int ret;
/* Section 1: use 32-bit fixed field for plaintext octet length */
if (inlen == 0 || inlen >= CRYPTO128_WRAP_MAX)
return 0;
/* Section 3: Alternative Initial Value */
if (!icv)
memcpy(aiv, default_aiv, 4);
else
memcpy(aiv, icv, 4); /* Standard doesn't mention this. */
aiv[4] = (inlen >> 24) & 0xFF;
aiv[5] = (inlen >> 16) & 0xFF;
aiv[6] = (inlen >> 8) & 0xFF;
aiv[7] = inlen & 0xFF;
if (padded_len == 8) {
/*
* Section 4.1 - special case in step 2: If the padded plaintext
* contains exactly eight octets, then prepend the AIV and encrypt
* the resulting 128-bit block using AES in ECB mode.
*/
memmove(out + 8, in, inlen);
memcpy(out, aiv, 8);
memset(out + 8 + inlen, 0, padding_len);
block(out, out, key);
ret = 16; /* AIV + padded input */
} else {
memmove(out, in, inlen);
memset(out + inlen, 0, padding_len); /* Section 4.1 step 1 */
ret = CRYPTO_128_wrap(key, aiv, out, out, padded_len, block);
}
return ret;
}
/** Unwrapping according to RFC 5649 section 4.2.
*
* @param[in] key Key value.
* @param[in] icv (Non-standard) IV, 4 bytes. NULL = use default_aiv.
* @param[out] out Plaintext. Minimal buffer length = (inlen - 8) bytes.
* Input and output buffers can overlap if block function
* supports that.
* @param[in] in Ciphertext as n 64-bit blocks.
* @param[in] inlen Length of in.
* @param[in] block Block processing function.
* @return 0 if inlen is out of range [16, CRYPTO128_WRAP_MAX],
* or if inlen is not a multiple of 8
* or if IV and message length indicator doesn't match.
* Output length if unwrapping succeeded and IV matches.
*/
size_t CRYPTO_128_unwrap_pad(void *key, const unsigned char *icv,
unsigned char *out,
const unsigned char *in, size_t inlen,
block128_f block)
{
/* n: number of 64-bit blocks in the padded key data */
size_t n = inlen / 8 - 1;
size_t padded_len;
size_t padding_len;
size_t ptext_len;
/* RFC 5649 section 3: Alternative Initial Value */
unsigned char aiv[8];
static unsigned char zeros[8] = { 0x0 };
size_t ret;
/* Section 4.2: Ciphertext length has to be (n+1) 64-bit blocks. */
if ((inlen & 0x7) != 0 || inlen < 16 || inlen >= CRYPTO128_WRAP_MAX)
return 0;
if (inlen == 16) {
/*
* Section 4.2 - special case in step 1: When n=1, the ciphertext
* contains exactly two 64-bit blocks and they are decrypted as a
* single AES block using AES in ECB mode: AIV | P[1] = DEC(K, C[0] |
* C[1])
*/
unsigned char buff[16];
block(in, buff, key);
memcpy(aiv, buff, 8);
/* Remove AIV */
memcpy(out, buff + 8, 8);
padded_len = 8;
OPENSSL_cleanse(buff, inlen);
} else {
padded_len = inlen - 8;
ret = crypto_128_unwrap_raw(key, aiv, out, in, inlen, block);
if (padded_len != ret) {
OPENSSL_cleanse(out, inlen);
return 0;
}
}
/*
* Section 3: AIV checks: Check that MSB(32,A) = A65959A6. Optionally a
* user-supplied value can be used (even if standard doesn't mention
* this).
*/
if ((!icv && CRYPTO_memcmp(aiv, default_aiv, 4))
|| (icv && CRYPTO_memcmp(aiv, icv, 4))) {
OPENSSL_cleanse(out, inlen);
return 0;
}
/*
* Check that 8*(n-1) < LSB(32,AIV) <= 8*n. If so, let ptext_len =
* LSB(32,AIV).
*/
ptext_len = ((unsigned int)aiv[4] << 24)
| ((unsigned int)aiv[5] << 16)
| ((unsigned int)aiv[6] << 8)
| (unsigned int)aiv[7];
if (8 * (n - 1) >= ptext_len || ptext_len > 8 * n) {
OPENSSL_cleanse(out, inlen);
return 0;
}
/*
* Check that the rightmost padding_len octets of the output data are
* zero.
*/
padding_len = padded_len - ptext_len;
if (CRYPTO_memcmp(out + ptext_len, zeros, padding_len) != 0) {
OPENSSL_cleanse(out, inlen);
return 0;
}
/* Section 4.2 step 3: Remove padding */
return ptext_len;
}
|
./openssl/crypto/modes/ctr128.c | /*
* Copyright 2008-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <string.h>
#include <openssl/crypto.h>
#include "internal/endian.h"
#include "crypto/modes.h"
#if defined(__GNUC__) && !defined(STRICT_ALIGNMENT)
typedef size_t size_t_aX __attribute((__aligned__(1)));
#else
typedef size_t size_t_aX;
#endif
/*
* NOTE: the IV/counter CTR mode is big-endian. The code itself is
* endian-neutral.
*/
/* increment counter (128-bit int) by 1 */
static void ctr128_inc(unsigned char *counter)
{
u32 n = 16, c = 1;
do {
--n;
c += counter[n];
counter[n] = (u8)c;
c >>= 8;
} while (n);
}
#if !defined(OPENSSL_SMALL_FOOTPRINT)
static void ctr128_inc_aligned(unsigned char *counter)
{
size_t *data, c, d, n;
DECLARE_IS_ENDIAN;
if (IS_LITTLE_ENDIAN || ((size_t)counter % sizeof(size_t)) != 0) {
ctr128_inc(counter);
return;
}
data = (size_t *)counter;
c = 1;
n = 16 / sizeof(size_t);
do {
--n;
d = data[n] += c;
/* did addition carry? */
c = ((d - c) & ~d) >> (sizeof(size_t) * 8 - 1);
} while (n);
}
#endif
/*
* The input encrypted as though 128bit counter mode is being used. The
* extra state information to record how much of the 128bit block we have
* used is contained in *num, and the encrypted counter is kept in
* ecount_buf. Both *num and ecount_buf must be initialised with zeros
* before the first call to CRYPTO_ctr128_encrypt(). This algorithm assumes
* that the counter is in the x lower bits of the IV (ivec), and that the
* application has full control over overflow and the rest of the IV. This
* implementation takes NO responsibility for checking that the counter
* doesn't overflow into the rest of the IV when incremented.
*/
void CRYPTO_ctr128_encrypt(const unsigned char *in, unsigned char *out,
size_t len, const void *key,
unsigned char ivec[16],
unsigned char ecount_buf[16], unsigned int *num,
block128_f block)
{
unsigned int n;
size_t l = 0;
n = *num;
#if !defined(OPENSSL_SMALL_FOOTPRINT)
if (16 % sizeof(size_t) == 0) { /* always true actually */
do {
while (n && len) {
*(out++) = *(in++) ^ ecount_buf[n];
--len;
n = (n + 1) % 16;
}
# if defined(STRICT_ALIGNMENT)
if (((size_t)in | (size_t)out | (size_t)ecount_buf)
% sizeof(size_t) != 0)
break;
# endif
while (len >= 16) {
(*block) (ivec, ecount_buf, key);
ctr128_inc_aligned(ivec);
for (n = 0; n < 16; n += sizeof(size_t))
*(size_t_aX *)(out + n) =
*(size_t_aX *)(in + n)
^ *(size_t_aX *)(ecount_buf + n);
len -= 16;
out += 16;
in += 16;
n = 0;
}
if (len) {
(*block) (ivec, ecount_buf, key);
ctr128_inc_aligned(ivec);
while (len--) {
out[n] = in[n] ^ ecount_buf[n];
++n;
}
}
*num = n;
return;
} while (0);
}
/* the rest would be commonly eliminated by x86* compiler */
#endif
while (l < len) {
if (n == 0) {
(*block) (ivec, ecount_buf, key);
ctr128_inc(ivec);
}
out[l] = in[l] ^ ecount_buf[n];
++l;
n = (n + 1) % 16;
}
*num = n;
}
/* increment upper 96 bits of 128-bit counter by 1 */
static void ctr96_inc(unsigned char *counter)
{
u32 n = 12, c = 1;
do {
--n;
c += counter[n];
counter[n] = (u8)c;
c >>= 8;
} while (n);
}
void CRYPTO_ctr128_encrypt_ctr32(const unsigned char *in, unsigned char *out,
size_t len, const void *key,
unsigned char ivec[16],
unsigned char ecount_buf[16],
unsigned int *num, ctr128_f func)
{
unsigned int n, ctr32;
n = *num;
while (n && len) {
*(out++) = *(in++) ^ ecount_buf[n];
--len;
n = (n + 1) % 16;
}
ctr32 = GETU32(ivec + 12);
while (len >= 16) {
size_t blocks = len / 16;
/*
* 1<<28 is just a not-so-small yet not-so-large number...
* Below condition is practically never met, but it has to
* be checked for code correctness.
*/
if (sizeof(size_t) > sizeof(unsigned int) && blocks > (1U << 28))
blocks = (1U << 28);
/*
* As (*func) operates on 32-bit counter, caller
* has to handle overflow. 'if' below detects the
* overflow, which is then handled by limiting the
* amount of blocks to the exact overflow point...
*/
ctr32 += (u32)blocks;
if (ctr32 < blocks) {
blocks -= ctr32;
ctr32 = 0;
}
(*func) (in, out, blocks, key, ivec);
/* (*ctr) does not update ivec, caller does: */
PUTU32(ivec + 12, ctr32);
/* ... overflow was detected, propagate carry. */
if (ctr32 == 0)
ctr96_inc(ivec);
blocks *= 16;
len -= blocks;
out += blocks;
in += blocks;
}
if (len) {
memset(ecount_buf, 0, 16);
(*func) (ecount_buf, ecount_buf, 1, key, ivec);
++ctr32;
PUTU32(ivec + 12, ctr32);
if (ctr32 == 0)
ctr96_inc(ivec);
while (len--) {
out[n] = in[n] ^ ecount_buf[n];
++n;
}
}
*num = n;
}
|
./openssl/crypto/ts/ts_req_print.c | /*
* Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/objects.h>
#include <openssl/bn.h>
#include <openssl/x509v3.h>
#include <openssl/ts.h>
#include "ts_local.h"
int TS_REQ_print_bio(BIO *bio, TS_REQ *a)
{
int v;
ASN1_OBJECT *policy_id;
if (a == NULL)
return 0;
v = TS_REQ_get_version(a);
BIO_printf(bio, "Version: %d\n", v);
TS_MSG_IMPRINT_print_bio(bio, a->msg_imprint);
BIO_printf(bio, "Policy OID: ");
policy_id = TS_REQ_get_policy_id(a);
if (policy_id == NULL)
BIO_printf(bio, "unspecified\n");
else
TS_OBJ_print_bio(bio, policy_id);
BIO_printf(bio, "Nonce: ");
if (a->nonce == NULL)
BIO_printf(bio, "unspecified");
else
TS_ASN1_INTEGER_print_bio(bio, a->nonce);
BIO_write(bio, "\n", 1);
BIO_printf(bio, "Certificate required: %s\n",
a->cert_req ? "yes" : "no");
TS_ext_print_bio(bio, a->extensions);
return 1;
}
|
./openssl/crypto/ts/ts_local.h | /*
* Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*-
* MessageImprint ::= SEQUENCE {
* hashAlgorithm AlgorithmIdentifier,
* hashedMessage OCTET STRING }
*/
struct TS_msg_imprint_st {
X509_ALGOR *hash_algo;
ASN1_OCTET_STRING *hashed_msg;
};
/*-
* TimeStampResp ::= SEQUENCE {
* status PKIStatusInfo,
* timeStampToken TimeStampToken OPTIONAL }
*/
struct TS_resp_st {
TS_STATUS_INFO *status_info;
PKCS7 *token;
TS_TST_INFO *tst_info;
};
/*-
* TimeStampReq ::= SEQUENCE {
* version INTEGER { v1(1) },
* messageImprint MessageImprint,
* --a hash algorithm OID and the hash value of the data to be
* --time-stamped
* reqPolicy TSAPolicyId OPTIONAL,
* nonce INTEGER OPTIONAL,
* certReq BOOLEAN DEFAULT FALSE,
* extensions [0] IMPLICIT Extensions OPTIONAL }
*/
struct TS_req_st {
ASN1_INTEGER *version;
TS_MSG_IMPRINT *msg_imprint;
ASN1_OBJECT *policy_id;
ASN1_INTEGER *nonce;
ASN1_BOOLEAN cert_req;
STACK_OF(X509_EXTENSION) *extensions;
};
/*-
* Accuracy ::= SEQUENCE {
* seconds INTEGER OPTIONAL,
* millis [0] INTEGER (1..999) OPTIONAL,
* micros [1] INTEGER (1..999) OPTIONAL }
*/
struct TS_accuracy_st {
ASN1_INTEGER *seconds;
ASN1_INTEGER *millis;
ASN1_INTEGER *micros;
};
/*-
* TSTInfo ::= SEQUENCE {
* version INTEGER { v1(1) },
* policy TSAPolicyId,
* messageImprint MessageImprint,
* -- MUST have the same value as the similar field in
* -- TimeStampReq
* serialNumber INTEGER,
* -- Time-Stamping users MUST be ready to accommodate integers
* -- up to 160 bits.
* genTime GeneralizedTime,
* accuracy Accuracy OPTIONAL,
* ordering BOOLEAN DEFAULT FALSE,
* nonce INTEGER OPTIONAL,
* -- MUST be present if the similar field was present
* -- in TimeStampReq. In that case it MUST have the same value.
* tsa [0] GeneralName OPTIONAL,
* extensions [1] IMPLICIT Extensions OPTIONAL }
*/
struct TS_tst_info_st {
ASN1_INTEGER *version;
ASN1_OBJECT *policy_id;
TS_MSG_IMPRINT *msg_imprint;
ASN1_INTEGER *serial;
ASN1_GENERALIZEDTIME *time;
TS_ACCURACY *accuracy;
ASN1_BOOLEAN ordering;
ASN1_INTEGER *nonce;
GENERAL_NAME *tsa;
STACK_OF(X509_EXTENSION) *extensions;
};
struct TS_status_info_st {
ASN1_INTEGER *status;
STACK_OF(ASN1_UTF8STRING) *text;
ASN1_BIT_STRING *failure_info;
};
struct TS_resp_ctx {
X509 *signer_cert;
EVP_PKEY *signer_key;
const EVP_MD *signer_md;
const EVP_MD *ess_cert_id_digest;
STACK_OF(X509) *certs; /* Certs to include in signed data. */
STACK_OF(ASN1_OBJECT) *policies; /* Acceptable policies. */
ASN1_OBJECT *default_policy; /* It may appear in policies, too. */
STACK_OF(EVP_MD) *mds; /* Acceptable message digests. */
ASN1_INTEGER *seconds; /* accuracy, 0 means not specified. */
ASN1_INTEGER *millis; /* accuracy, 0 means not specified. */
ASN1_INTEGER *micros; /* accuracy, 0 means not specified. */
unsigned clock_precision_digits; /* fraction of seconds in timestamp
* token. */
unsigned flags; /* Optional info, see values above. */
/* Callback functions. */
TS_serial_cb serial_cb;
void *serial_cb_data; /* User data for serial_cb. */
TS_time_cb time_cb;
void *time_cb_data; /* User data for time_cb. */
TS_extension_cb extension_cb;
void *extension_cb_data; /* User data for extension_cb. */
/* These members are used only while creating the response. */
TS_REQ *request;
TS_RESP *response;
TS_TST_INFO *tst_info;
OSSL_LIB_CTX *libctx;
char *propq;
};
struct TS_verify_ctx {
/* Set this to the union of TS_VFY_... flags you want to carry out. */
unsigned flags;
/* Must be set only with TS_VFY_SIGNATURE. certs is optional. */
X509_STORE *store;
STACK_OF(X509) *certs;
/* Must be set only with TS_VFY_POLICY. */
ASN1_OBJECT *policy;
/*
* Must be set only with TS_VFY_IMPRINT. If md_alg is NULL, the
* algorithm from the response is used.
*/
X509_ALGOR *md_alg;
unsigned char *imprint;
unsigned imprint_len;
/* Must be set only with TS_VFY_DATA. */
BIO *data;
/* Must be set only with TS_VFY_TSA_NAME. */
ASN1_INTEGER *nonce;
/* Must be set only with TS_VFY_TSA_NAME. */
GENERAL_NAME *tsa_name;
};
|
./openssl/crypto/ts/ts_rsp_utils.c | /*
* Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/objects.h>
#include <openssl/ts.h>
#include <openssl/pkcs7.h>
#include "ts_local.h"
int TS_RESP_set_status_info(TS_RESP *a, TS_STATUS_INFO *status_info)
{
TS_STATUS_INFO *new_status_info;
if (a->status_info == status_info)
return 1;
new_status_info = TS_STATUS_INFO_dup(status_info);
if (new_status_info == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_TS_LIB);
return 0;
}
TS_STATUS_INFO_free(a->status_info);
a->status_info = new_status_info;
return 1;
}
TS_STATUS_INFO *TS_RESP_get_status_info(TS_RESP *a)
{
return a->status_info;
}
/* Caller loses ownership of PKCS7 and TS_TST_INFO objects. */
void TS_RESP_set_tst_info(TS_RESP *a, PKCS7 *p7, TS_TST_INFO *tst_info)
{
PKCS7_free(a->token);
a->token = p7;
TS_TST_INFO_free(a->tst_info);
a->tst_info = tst_info;
}
PKCS7 *TS_RESP_get_token(TS_RESP *a)
{
return a->token;
}
TS_TST_INFO *TS_RESP_get_tst_info(TS_RESP *a)
{
return a->tst_info;
}
int TS_TST_INFO_set_version(TS_TST_INFO *a, long version)
{
return ASN1_INTEGER_set(a->version, version);
}
long TS_TST_INFO_get_version(const TS_TST_INFO *a)
{
return ASN1_INTEGER_get(a->version);
}
int TS_TST_INFO_set_policy_id(TS_TST_INFO *a, ASN1_OBJECT *policy)
{
ASN1_OBJECT *new_policy;
if (a->policy_id == policy)
return 1;
new_policy = OBJ_dup(policy);
if (new_policy == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_OBJ_LIB);
return 0;
}
ASN1_OBJECT_free(a->policy_id);
a->policy_id = new_policy;
return 1;
}
ASN1_OBJECT *TS_TST_INFO_get_policy_id(TS_TST_INFO *a)
{
return a->policy_id;
}
int TS_TST_INFO_set_msg_imprint(TS_TST_INFO *a, TS_MSG_IMPRINT *msg_imprint)
{
TS_MSG_IMPRINT *new_msg_imprint;
if (a->msg_imprint == msg_imprint)
return 1;
new_msg_imprint = TS_MSG_IMPRINT_dup(msg_imprint);
if (new_msg_imprint == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_TS_LIB);
return 0;
}
TS_MSG_IMPRINT_free(a->msg_imprint);
a->msg_imprint = new_msg_imprint;
return 1;
}
TS_MSG_IMPRINT *TS_TST_INFO_get_msg_imprint(TS_TST_INFO *a)
{
return a->msg_imprint;
}
int TS_TST_INFO_set_serial(TS_TST_INFO *a, const ASN1_INTEGER *serial)
{
ASN1_INTEGER *new_serial;
if (a->serial == serial)
return 1;
new_serial = ASN1_INTEGER_dup(serial);
if (new_serial == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
return 0;
}
ASN1_INTEGER_free(a->serial);
a->serial = new_serial;
return 1;
}
const ASN1_INTEGER *TS_TST_INFO_get_serial(const TS_TST_INFO *a)
{
return a->serial;
}
int TS_TST_INFO_set_time(TS_TST_INFO *a, const ASN1_GENERALIZEDTIME *gtime)
{
ASN1_GENERALIZEDTIME *new_time;
if (a->time == gtime)
return 1;
new_time = ASN1_STRING_dup(gtime);
if (new_time == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
return 0;
}
ASN1_GENERALIZEDTIME_free(a->time);
a->time = new_time;
return 1;
}
const ASN1_GENERALIZEDTIME *TS_TST_INFO_get_time(const TS_TST_INFO *a)
{
return a->time;
}
int TS_TST_INFO_set_accuracy(TS_TST_INFO *a, TS_ACCURACY *accuracy)
{
TS_ACCURACY *new_accuracy;
if (a->accuracy == accuracy)
return 1;
new_accuracy = TS_ACCURACY_dup(accuracy);
if (new_accuracy == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_TS_LIB);
return 0;
}
TS_ACCURACY_free(a->accuracy);
a->accuracy = new_accuracy;
return 1;
}
TS_ACCURACY *TS_TST_INFO_get_accuracy(TS_TST_INFO *a)
{
return a->accuracy;
}
int TS_ACCURACY_set_seconds(TS_ACCURACY *a, const ASN1_INTEGER *seconds)
{
ASN1_INTEGER *new_seconds;
if (a->seconds == seconds)
return 1;
new_seconds = ASN1_INTEGER_dup(seconds);
if (new_seconds == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
return 0;
}
ASN1_INTEGER_free(a->seconds);
a->seconds = new_seconds;
return 1;
}
const ASN1_INTEGER *TS_ACCURACY_get_seconds(const TS_ACCURACY *a)
{
return a->seconds;
}
int TS_ACCURACY_set_millis(TS_ACCURACY *a, const ASN1_INTEGER *millis)
{
ASN1_INTEGER *new_millis = NULL;
if (a->millis == millis)
return 1;
if (millis != NULL) {
new_millis = ASN1_INTEGER_dup(millis);
if (new_millis == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
return 0;
}
}
ASN1_INTEGER_free(a->millis);
a->millis = new_millis;
return 1;
}
const ASN1_INTEGER *TS_ACCURACY_get_millis(const TS_ACCURACY *a)
{
return a->millis;
}
int TS_ACCURACY_set_micros(TS_ACCURACY *a, const ASN1_INTEGER *micros)
{
ASN1_INTEGER *new_micros = NULL;
if (a->micros == micros)
return 1;
if (micros != NULL) {
new_micros = ASN1_INTEGER_dup(micros);
if (new_micros == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
return 0;
}
}
ASN1_INTEGER_free(a->micros);
a->micros = new_micros;
return 1;
}
const ASN1_INTEGER *TS_ACCURACY_get_micros(const TS_ACCURACY *a)
{
return a->micros;
}
int TS_TST_INFO_set_ordering(TS_TST_INFO *a, int ordering)
{
a->ordering = ordering ? 0xFF : 0x00;
return 1;
}
int TS_TST_INFO_get_ordering(const TS_TST_INFO *a)
{
return a->ordering ? 1 : 0;
}
int TS_TST_INFO_set_nonce(TS_TST_INFO *a, const ASN1_INTEGER *nonce)
{
ASN1_INTEGER *new_nonce;
if (a->nonce == nonce)
return 1;
new_nonce = ASN1_INTEGER_dup(nonce);
if (new_nonce == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
return 0;
}
ASN1_INTEGER_free(a->nonce);
a->nonce = new_nonce;
return 1;
}
const ASN1_INTEGER *TS_TST_INFO_get_nonce(const TS_TST_INFO *a)
{
return a->nonce;
}
int TS_TST_INFO_set_tsa(TS_TST_INFO *a, GENERAL_NAME *tsa)
{
GENERAL_NAME *new_tsa;
if (a->tsa == tsa)
return 1;
new_tsa = GENERAL_NAME_dup(tsa);
if (new_tsa == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
return 0;
}
GENERAL_NAME_free(a->tsa);
a->tsa = new_tsa;
return 1;
}
GENERAL_NAME *TS_TST_INFO_get_tsa(TS_TST_INFO *a)
{
return a->tsa;
}
STACK_OF(X509_EXTENSION) *TS_TST_INFO_get_exts(TS_TST_INFO *a)
{
return a->extensions;
}
void TS_TST_INFO_ext_free(TS_TST_INFO *a)
{
if (!a)
return;
sk_X509_EXTENSION_pop_free(a->extensions, X509_EXTENSION_free);
a->extensions = NULL;
}
int TS_TST_INFO_get_ext_count(TS_TST_INFO *a)
{
return X509v3_get_ext_count(a->extensions);
}
int TS_TST_INFO_get_ext_by_NID(TS_TST_INFO *a, int nid, int lastpos)
{
return X509v3_get_ext_by_NID(a->extensions, nid, lastpos);
}
int TS_TST_INFO_get_ext_by_OBJ(TS_TST_INFO *a, const ASN1_OBJECT *obj, int lastpos)
{
return X509v3_get_ext_by_OBJ(a->extensions, obj, lastpos);
}
int TS_TST_INFO_get_ext_by_critical(TS_TST_INFO *a, int crit, int lastpos)
{
return X509v3_get_ext_by_critical(a->extensions, crit, lastpos);
}
X509_EXTENSION *TS_TST_INFO_get_ext(TS_TST_INFO *a, int loc)
{
return X509v3_get_ext(a->extensions, loc);
}
X509_EXTENSION *TS_TST_INFO_delete_ext(TS_TST_INFO *a, int loc)
{
return X509v3_delete_ext(a->extensions, loc);
}
int TS_TST_INFO_add_ext(TS_TST_INFO *a, X509_EXTENSION *ex, int loc)
{
return X509v3_add_ext(&a->extensions, ex, loc) != NULL;
}
void *TS_TST_INFO_get_ext_d2i(TS_TST_INFO *a, int nid, int *crit, int *idx)
{
return X509V3_get_d2i(a->extensions, nid, crit, idx);
}
int TS_STATUS_INFO_set_status(TS_STATUS_INFO *a, int i)
{
return ASN1_INTEGER_set(a->status, i);
}
const ASN1_INTEGER *TS_STATUS_INFO_get0_status(const TS_STATUS_INFO *a)
{
return a->status;
}
const STACK_OF(ASN1_UTF8STRING) *
TS_STATUS_INFO_get0_text(const TS_STATUS_INFO *a)
{
return a->text;
}
const ASN1_BIT_STRING *TS_STATUS_INFO_get0_failure_info(const TS_STATUS_INFO *a)
{
return a->failure_info;
}
|
./openssl/crypto/ts/ts_verify_ctx.c | /*
* Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "internal/cryptlib.h"
#include <openssl/objects.h>
#include <openssl/ts.h>
#include "ts_local.h"
TS_VERIFY_CTX *TS_VERIFY_CTX_new(void)
{
TS_VERIFY_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
return ctx;
}
void TS_VERIFY_CTX_init(TS_VERIFY_CTX *ctx)
{
OPENSSL_assert(ctx != NULL);
memset(ctx, 0, sizeof(*ctx));
}
void TS_VERIFY_CTX_free(TS_VERIFY_CTX *ctx)
{
if (!ctx)
return;
TS_VERIFY_CTX_cleanup(ctx);
OPENSSL_free(ctx);
}
int TS_VERIFY_CTX_add_flags(TS_VERIFY_CTX *ctx, int f)
{
ctx->flags |= f;
return ctx->flags;
}
int TS_VERIFY_CTX_set_flags(TS_VERIFY_CTX *ctx, int f)
{
ctx->flags = f;
return ctx->flags;
}
BIO *TS_VERIFY_CTX_set_data(TS_VERIFY_CTX *ctx, BIO *b)
{
ctx->data = b;
return ctx->data;
}
X509_STORE *TS_VERIFY_CTX_set_store(TS_VERIFY_CTX *ctx, X509_STORE *s)
{
ctx->store = s;
return ctx->store;
}
STACK_OF(X509) *TS_VERIFY_CTX_set_certs(TS_VERIFY_CTX *ctx,
STACK_OF(X509) *certs)
{
ctx->certs = certs;
return ctx->certs;
}
unsigned char *TS_VERIFY_CTX_set_imprint(TS_VERIFY_CTX *ctx,
unsigned char *hexstr, long len)
{
OPENSSL_free(ctx->imprint);
ctx->imprint = hexstr;
ctx->imprint_len = len;
return ctx->imprint;
}
void TS_VERIFY_CTX_cleanup(TS_VERIFY_CTX *ctx)
{
if (!ctx)
return;
X509_STORE_free(ctx->store);
OSSL_STACK_OF_X509_free(ctx->certs);
ASN1_OBJECT_free(ctx->policy);
X509_ALGOR_free(ctx->md_alg);
OPENSSL_free(ctx->imprint);
BIO_free_all(ctx->data);
ASN1_INTEGER_free(ctx->nonce);
GENERAL_NAME_free(ctx->tsa_name);
TS_VERIFY_CTX_init(ctx);
}
TS_VERIFY_CTX *TS_REQ_to_TS_VERIFY_CTX(TS_REQ *req, TS_VERIFY_CTX *ctx)
{
TS_VERIFY_CTX *ret = ctx;
ASN1_OBJECT *policy;
TS_MSG_IMPRINT *imprint;
X509_ALGOR *md_alg;
ASN1_OCTET_STRING *msg;
const ASN1_INTEGER *nonce;
OPENSSL_assert(req != NULL);
if (ret)
TS_VERIFY_CTX_cleanup(ret);
else if ((ret = TS_VERIFY_CTX_new()) == NULL)
return NULL;
ret->flags = TS_VFY_ALL_IMPRINT & ~(TS_VFY_TSA_NAME | TS_VFY_SIGNATURE);
if ((policy = req->policy_id) != NULL) {
if ((ret->policy = OBJ_dup(policy)) == NULL)
goto err;
} else
ret->flags &= ~TS_VFY_POLICY;
imprint = req->msg_imprint;
md_alg = imprint->hash_algo;
if ((ret->md_alg = X509_ALGOR_dup(md_alg)) == NULL)
goto err;
msg = imprint->hashed_msg;
ret->imprint_len = ASN1_STRING_length(msg);
if (ret->imprint_len <= 0)
goto err;
if ((ret->imprint = OPENSSL_malloc(ret->imprint_len)) == NULL)
goto err;
memcpy(ret->imprint, ASN1_STRING_get0_data(msg), ret->imprint_len);
if ((nonce = req->nonce) != NULL) {
if ((ret->nonce = ASN1_INTEGER_dup(nonce)) == NULL)
goto err;
} else
ret->flags &= ~TS_VFY_NONCE;
return ret;
err:
if (ctx)
TS_VERIFY_CTX_cleanup(ctx);
else
TS_VERIFY_CTX_free(ret);
return NULL;
}
|
./openssl/crypto/ts/ts_err.c | /*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/err.h>
#include <openssl/tserr.h>
#include "crypto/tserr.h"
#ifndef OPENSSL_NO_TS
# ifndef OPENSSL_NO_ERR
static const ERR_STRING_DATA TS_str_reasons[] = {
{ERR_PACK(ERR_LIB_TS, 0, TS_R_BAD_PKCS7_TYPE), "bad pkcs7 type"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_BAD_TYPE), "bad type"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_CANNOT_LOAD_CERT), "cannot load certificate"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_CANNOT_LOAD_KEY), "cannot load private key"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_CERTIFICATE_VERIFY_ERROR),
"certificate verify error"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_COULD_NOT_SET_ENGINE),
"could not set engine"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_COULD_NOT_SET_TIME), "could not set time"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_DETACHED_CONTENT), "detached content"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_ESS_ADD_SIGNING_CERT_ERROR),
"ess add signing cert error"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_ESS_ADD_SIGNING_CERT_V2_ERROR),
"ess add signing cert v2 error"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_ESS_SIGNING_CERTIFICATE_ERROR),
"ess signing certificate error"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_INVALID_NULL_POINTER),
"invalid null pointer"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_INVALID_SIGNER_CERTIFICATE_PURPOSE),
"invalid signer certificate purpose"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_MESSAGE_IMPRINT_MISMATCH),
"message imprint mismatch"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_NONCE_MISMATCH), "nonce mismatch"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_NONCE_NOT_RETURNED), "nonce not returned"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_NO_CONTENT), "no content"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_NO_TIME_STAMP_TOKEN), "no time stamp token"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_PKCS7_ADD_SIGNATURE_ERROR),
"pkcs7 add signature error"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_PKCS7_ADD_SIGNED_ATTR_ERROR),
"pkcs7 add signed attr error"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_PKCS7_TO_TS_TST_INFO_FAILED),
"pkcs7 to ts tst info failed"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_POLICY_MISMATCH), "policy mismatch"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE),
"private key does not match certificate"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_RESPONSE_SETUP_ERROR),
"response setup error"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_SIGNATURE_FAILURE), "signature failure"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_THERE_MUST_BE_ONE_SIGNER),
"there must be one signer"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_TIME_SYSCALL_ERROR), "time syscall error"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_TOKEN_NOT_PRESENT), "token not present"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_TOKEN_PRESENT), "token present"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_TSA_NAME_MISMATCH), "tsa name mismatch"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_TSA_UNTRUSTED), "tsa untrusted"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_TST_INFO_SETUP_ERROR),
"tst info setup error"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_TS_DATASIGN), "ts datasign"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_UNACCEPTABLE_POLICY), "unacceptable policy"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_UNSUPPORTED_MD_ALGORITHM),
"unsupported md algorithm"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_UNSUPPORTED_VERSION), "unsupported version"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_VAR_BAD_VALUE), "var bad value"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_VAR_LOOKUP_FAILURE),
"cannot find config variable"},
{ERR_PACK(ERR_LIB_TS, 0, TS_R_WRONG_CONTENT_TYPE), "wrong content type"},
{0, NULL}
};
# endif
int ossl_err_load_TS_strings(void)
{
# ifndef OPENSSL_NO_ERR
if (ERR_reason_error_string(TS_str_reasons[0].error) == NULL)
ERR_load_strings_const(TS_str_reasons);
# endif
return 1;
}
#else
NON_EMPTY_TRANSLATION_UNIT
#endif
|
./openssl/crypto/ts/ts_rsp_verify.c | /*
* Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <openssl/objects.h>
#include <openssl/ts.h>
#include <openssl/pkcs7.h>
#include "internal/cryptlib.h"
#include "internal/sizes.h"
#include "crypto/ess.h"
#include "ts_local.h"
static int ts_verify_cert(X509_STORE *store, STACK_OF(X509) *untrusted,
X509 *signer, STACK_OF(X509) **chain);
static int ts_check_signing_certs(const PKCS7_SIGNER_INFO *si,
const STACK_OF(X509) *chain);
static int int_ts_RESP_verify_token(TS_VERIFY_CTX *ctx,
PKCS7 *token, TS_TST_INFO *tst_info);
static int ts_check_status_info(TS_RESP *response);
static char *ts_get_status_text(STACK_OF(ASN1_UTF8STRING) *text);
static int ts_check_policy(const ASN1_OBJECT *req_oid,
const TS_TST_INFO *tst_info);
static int ts_compute_imprint(BIO *data, TS_TST_INFO *tst_info,
X509_ALGOR **md_alg,
unsigned char **imprint, unsigned *imprint_len);
static int ts_check_imprints(X509_ALGOR *algor_a,
const unsigned char *imprint_a, unsigned len_a,
TS_TST_INFO *tst_info);
static int ts_check_nonces(const ASN1_INTEGER *a, TS_TST_INFO *tst_info);
static int ts_check_signer_name(GENERAL_NAME *tsa_name, X509 *signer);
static int ts_find_name(STACK_OF(GENERAL_NAME) *gen_names,
GENERAL_NAME *name);
/*
* This must be large enough to hold all values in ts_status_text (with
* comma separator) or all text fields in ts_failure_info (also with comma).
*/
#define TS_STATUS_BUF_SIZE 256
/*
* Local mapping between response codes and descriptions.
*/
static const char *ts_status_text[] = {
"granted",
"grantedWithMods",
"rejection",
"waiting",
"revocationWarning",
"revocationNotification"
};
#define TS_STATUS_TEXT_SIZE OSSL_NELEM(ts_status_text)
static struct {
int code;
const char *text;
} ts_failure_info[] = {
{TS_INFO_BAD_ALG, "badAlg"},
{TS_INFO_BAD_REQUEST, "badRequest"},
{TS_INFO_BAD_DATA_FORMAT, "badDataFormat"},
{TS_INFO_TIME_NOT_AVAILABLE, "timeNotAvailable"},
{TS_INFO_UNACCEPTED_POLICY, "unacceptedPolicy"},
{TS_INFO_UNACCEPTED_EXTENSION, "unacceptedExtension"},
{TS_INFO_ADD_INFO_NOT_AVAILABLE, "addInfoNotAvailable"},
{TS_INFO_SYSTEM_FAILURE, "systemFailure"}
};
/*-
* This function carries out the following tasks:
* - Checks if there is one and only one signer.
* - Search for the signing certificate in 'certs' and in the response.
* - Check the extended key usage and key usage fields of the signer
* certificate (done by the path validation).
* - Build and validate the certificate path.
* - Check if the certificate path meets the requirements of the
* SigningCertificate ESS signed attribute.
* - Verify the signature value.
* - Returns the signer certificate in 'signer', if 'signer' is not NULL.
*/
int TS_RESP_verify_signature(PKCS7 *token, STACK_OF(X509) *certs,
X509_STORE *store, X509 **signer_out)
{
STACK_OF(PKCS7_SIGNER_INFO) *sinfos = NULL;
PKCS7_SIGNER_INFO *si;
STACK_OF(X509) *untrusted = NULL;
STACK_OF(X509) *signers = NULL;
X509 *signer;
STACK_OF(X509) *chain = NULL;
char buf[4096];
int i, j = 0, ret = 0;
BIO *p7bio = NULL;
/* Some sanity checks first. */
if (!token) {
ERR_raise(ERR_LIB_TS, TS_R_INVALID_NULL_POINTER);
goto err;
}
if (!PKCS7_type_is_signed(token)) {
ERR_raise(ERR_LIB_TS, TS_R_WRONG_CONTENT_TYPE);
goto err;
}
sinfos = PKCS7_get_signer_info(token);
if (!sinfos || sk_PKCS7_SIGNER_INFO_num(sinfos) != 1) {
ERR_raise(ERR_LIB_TS, TS_R_THERE_MUST_BE_ONE_SIGNER);
goto err;
}
si = sk_PKCS7_SIGNER_INFO_value(sinfos, 0);
if (PKCS7_get_detached(token)) {
ERR_raise(ERR_LIB_TS, TS_R_NO_CONTENT);
goto err;
}
/*
* Get hold of the signer certificate, search only internal certificates
* if it was requested.
*/
signers = PKCS7_get0_signers(token, certs, 0);
if (!signers || sk_X509_num(signers) != 1)
goto err;
signer = sk_X509_value(signers, 0);
untrusted = sk_X509_new_reserve(NULL, sk_X509_num(certs)
+ sk_X509_num(token->d.sign->cert));
if (untrusted == NULL
|| !X509_add_certs(untrusted, certs, 0)
|| !X509_add_certs(untrusted, token->d.sign->cert, 0))
goto err;
if (!ts_verify_cert(store, untrusted, signer, &chain))
goto err;
if (!ts_check_signing_certs(si, chain))
goto err;
p7bio = PKCS7_dataInit(token, NULL);
/* We now have to 'read' from p7bio to calculate digests etc. */
while ((i = BIO_read(p7bio, buf, sizeof(buf))) > 0)
continue;
j = PKCS7_signatureVerify(p7bio, token, si, signer);
if (j <= 0) {
ERR_raise(ERR_LIB_TS, TS_R_SIGNATURE_FAILURE);
goto err;
}
if (signer_out) {
*signer_out = signer;
X509_up_ref(signer);
}
ret = 1;
err:
BIO_free_all(p7bio);
sk_X509_free(untrusted);
OSSL_STACK_OF_X509_free(chain);
sk_X509_free(signers);
return ret;
}
/*
* The certificate chain is returned in chain. Caller is responsible for
* freeing the vector.
*/
static int ts_verify_cert(X509_STORE *store, STACK_OF(X509) *untrusted,
X509 *signer, STACK_OF(X509) **chain)
{
X509_STORE_CTX *cert_ctx = NULL;
int i;
int ret = 0;
*chain = NULL;
cert_ctx = X509_STORE_CTX_new();
if (cert_ctx == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_X509_LIB);
goto err;
}
if (!X509_STORE_CTX_init(cert_ctx, store, signer, untrusted))
goto end;
X509_STORE_CTX_set_purpose(cert_ctx, X509_PURPOSE_TIMESTAMP_SIGN);
i = X509_verify_cert(cert_ctx);
if (i <= 0) {
int j = X509_STORE_CTX_get_error(cert_ctx);
ERR_raise_data(ERR_LIB_TS, TS_R_CERTIFICATE_VERIFY_ERROR,
"Verify error:%s", X509_verify_cert_error_string(j));
goto err;
}
*chain = X509_STORE_CTX_get1_chain(cert_ctx);
ret = 1;
goto end;
err:
ret = 0;
end:
X509_STORE_CTX_free(cert_ctx);
return ret;
}
static ESS_SIGNING_CERT *ossl_ess_get_signing_cert(const PKCS7_SIGNER_INFO *si)
{
ASN1_TYPE *attr;
const unsigned char *p;
attr = PKCS7_get_signed_attribute(si, NID_id_smime_aa_signingCertificate);
if (attr == NULL)
return NULL;
p = attr->value.sequence->data;
return d2i_ESS_SIGNING_CERT(NULL, &p, attr->value.sequence->length);
}
static
ESS_SIGNING_CERT_V2 *ossl_ess_get_signing_cert_v2(const PKCS7_SIGNER_INFO *si)
{
ASN1_TYPE *attr;
const unsigned char *p;
attr = PKCS7_get_signed_attribute(si, NID_id_smime_aa_signingCertificateV2);
if (attr == NULL)
return NULL;
p = attr->value.sequence->data;
return d2i_ESS_SIGNING_CERT_V2(NULL, &p, attr->value.sequence->length);
}
static int ts_check_signing_certs(const PKCS7_SIGNER_INFO *si,
const STACK_OF(X509) *chain)
{
ESS_SIGNING_CERT *ss = ossl_ess_get_signing_cert(si);
ESS_SIGNING_CERT_V2 *ssv2 = ossl_ess_get_signing_cert_v2(si);
int ret = OSSL_ESS_check_signing_certs(ss, ssv2, chain, 1) > 0;
ESS_SIGNING_CERT_free(ss);
ESS_SIGNING_CERT_V2_free(ssv2);
return ret;
}
/*-
* Verifies whether 'response' contains a valid response with regards
* to the settings of the context:
* - Gives an error message if the TS_TST_INFO is not present.
* - Calls _TS_RESP_verify_token to verify the token content.
*/
int TS_RESP_verify_response(TS_VERIFY_CTX *ctx, TS_RESP *response)
{
PKCS7 *token = response->token;
TS_TST_INFO *tst_info = response->tst_info;
int ret = 0;
if (!ts_check_status_info(response))
goto err;
if (!int_ts_RESP_verify_token(ctx, token, tst_info))
goto err;
ret = 1;
err:
return ret;
}
/*
* Tries to extract a TS_TST_INFO structure from the PKCS7 token and
* calls the internal int_TS_RESP_verify_token function for verifying it.
*/
int TS_RESP_verify_token(TS_VERIFY_CTX *ctx, PKCS7 *token)
{
TS_TST_INFO *tst_info = PKCS7_to_TS_TST_INFO(token);
int ret = 0;
if (tst_info) {
ret = int_ts_RESP_verify_token(ctx, token, tst_info);
TS_TST_INFO_free(tst_info);
}
return ret;
}
/*-
* Verifies whether the 'token' contains a valid timestamp token
* with regards to the settings of the context. Only those checks are
* carried out that are specified in the context:
* - Verifies the signature of the TS_TST_INFO.
* - Checks the version number of the response.
* - Check if the requested and returned policies math.
* - Check if the message imprints are the same.
* - Check if the nonces are the same.
* - Check if the TSA name matches the signer.
* - Check if the TSA name is the expected TSA.
*/
static int int_ts_RESP_verify_token(TS_VERIFY_CTX *ctx,
PKCS7 *token, TS_TST_INFO *tst_info)
{
X509 *signer = NULL;
GENERAL_NAME *tsa_name = tst_info->tsa;
X509_ALGOR *md_alg = NULL;
unsigned char *imprint = NULL;
unsigned imprint_len = 0;
int ret = 0;
int flags = ctx->flags;
/* Some options require us to also check the signature */
if (((flags & TS_VFY_SIGNER) && tsa_name != NULL)
|| (flags & TS_VFY_TSA_NAME)) {
flags |= TS_VFY_SIGNATURE;
}
if ((flags & TS_VFY_SIGNATURE)
&& !TS_RESP_verify_signature(token, ctx->certs, ctx->store, &signer))
goto err;
if ((flags & TS_VFY_VERSION)
&& TS_TST_INFO_get_version(tst_info) != 1) {
ERR_raise(ERR_LIB_TS, TS_R_UNSUPPORTED_VERSION);
goto err;
}
if ((flags & TS_VFY_POLICY)
&& !ts_check_policy(ctx->policy, tst_info))
goto err;
if ((flags & TS_VFY_IMPRINT)
&& !ts_check_imprints(ctx->md_alg, ctx->imprint, ctx->imprint_len,
tst_info))
goto err;
if ((flags & TS_VFY_DATA)
&& (!ts_compute_imprint(ctx->data, tst_info,
&md_alg, &imprint, &imprint_len)
|| !ts_check_imprints(md_alg, imprint, imprint_len, tst_info)))
goto err;
if ((flags & TS_VFY_NONCE)
&& !ts_check_nonces(ctx->nonce, tst_info))
goto err;
if ((flags & TS_VFY_SIGNER)
&& tsa_name && !ts_check_signer_name(tsa_name, signer)) {
ERR_raise(ERR_LIB_TS, TS_R_TSA_NAME_MISMATCH);
goto err;
}
if ((flags & TS_VFY_TSA_NAME)
&& !ts_check_signer_name(ctx->tsa_name, signer)) {
ERR_raise(ERR_LIB_TS, TS_R_TSA_UNTRUSTED);
goto err;
}
ret = 1;
err:
X509_free(signer);
X509_ALGOR_free(md_alg);
OPENSSL_free(imprint);
return ret;
}
static int ts_check_status_info(TS_RESP *response)
{
TS_STATUS_INFO *info = response->status_info;
long status = ASN1_INTEGER_get(info->status);
const char *status_text = NULL;
char *embedded_status_text = NULL;
char failure_text[TS_STATUS_BUF_SIZE] = "";
if (status == 0 || status == 1)
return 1;
/* There was an error, get the description in status_text. */
if (0 <= status && status < (long) OSSL_NELEM(ts_status_text))
status_text = ts_status_text[status];
else
status_text = "unknown code";
if (sk_ASN1_UTF8STRING_num(info->text) > 0
&& (embedded_status_text = ts_get_status_text(info->text)) == NULL)
return 0;
/* Fill in failure_text with the failure information. */
if (info->failure_info) {
int i;
int first = 1;
for (i = 0; i < (int)OSSL_NELEM(ts_failure_info); ++i) {
if (ASN1_BIT_STRING_get_bit(info->failure_info,
ts_failure_info[i].code)) {
if (!first)
strcat(failure_text, ",");
else
first = 0;
strcat(failure_text, ts_failure_info[i].text);
}
}
}
if (failure_text[0] == '\0')
strcpy(failure_text, "unspecified");
ERR_raise_data(ERR_LIB_TS, TS_R_NO_TIME_STAMP_TOKEN,
"status code: %s, status text: %s, failure codes: %s",
status_text,
embedded_status_text ? embedded_status_text : "unspecified",
failure_text);
OPENSSL_free(embedded_status_text);
return 0;
}
static char *ts_get_status_text(STACK_OF(ASN1_UTF8STRING) *text)
{
return ossl_sk_ASN1_UTF8STRING2text(text, "/", TS_MAX_STATUS_LENGTH);
}
static int ts_check_policy(const ASN1_OBJECT *req_oid,
const TS_TST_INFO *tst_info)
{
const ASN1_OBJECT *resp_oid = tst_info->policy_id;
if (OBJ_cmp(req_oid, resp_oid) != 0) {
ERR_raise(ERR_LIB_TS, TS_R_POLICY_MISMATCH);
return 0;
}
return 1;
}
static int ts_compute_imprint(BIO *data, TS_TST_INFO *tst_info,
X509_ALGOR **md_alg,
unsigned char **imprint, unsigned *imprint_len)
{
TS_MSG_IMPRINT *msg_imprint = tst_info->msg_imprint;
X509_ALGOR *md_alg_resp = msg_imprint->hash_algo;
EVP_MD *md = NULL;
EVP_MD_CTX *md_ctx = NULL;
unsigned char buffer[4096];
char name[OSSL_MAX_NAME_SIZE];
int length;
*md_alg = NULL;
*imprint = NULL;
if ((*md_alg = X509_ALGOR_dup(md_alg_resp)) == NULL)
goto err;
OBJ_obj2txt(name, sizeof(name), md_alg_resp->algorithm, 0);
(void)ERR_set_mark();
md = EVP_MD_fetch(NULL, name, NULL);
if (md == NULL)
md = (EVP_MD *)EVP_get_digestbyname(name);
if (md == NULL) {
(void)ERR_clear_last_mark();
goto err;
}
(void)ERR_pop_to_mark();
length = EVP_MD_get_size(md);
if (length < 0)
goto err;
*imprint_len = length;
if ((*imprint = OPENSSL_malloc(*imprint_len)) == NULL)
goto err;
md_ctx = EVP_MD_CTX_new();
if (md_ctx == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_EVP_LIB);
goto err;
}
if (!EVP_DigestInit(md_ctx, md))
goto err;
EVP_MD_free(md);
md = NULL;
while ((length = BIO_read(data, buffer, sizeof(buffer))) > 0) {
if (!EVP_DigestUpdate(md_ctx, buffer, length))
goto err;
}
if (!EVP_DigestFinal(md_ctx, *imprint, NULL))
goto err;
EVP_MD_CTX_free(md_ctx);
return 1;
err:
EVP_MD_CTX_free(md_ctx);
EVP_MD_free(md);
X509_ALGOR_free(*md_alg);
*md_alg = NULL;
OPENSSL_free(*imprint);
*imprint_len = 0;
*imprint = 0;
return 0;
}
static int ts_check_imprints(X509_ALGOR *algor_a,
const unsigned char *imprint_a, unsigned len_a,
TS_TST_INFO *tst_info)
{
TS_MSG_IMPRINT *b = tst_info->msg_imprint;
X509_ALGOR *algor_b = b->hash_algo;
int ret = 0;
if (algor_a) {
if (OBJ_cmp(algor_a->algorithm, algor_b->algorithm))
goto err;
/* The parameter must be NULL in both. */
if ((algor_a->parameter
&& ASN1_TYPE_get(algor_a->parameter) != V_ASN1_NULL)
|| (algor_b->parameter
&& ASN1_TYPE_get(algor_b->parameter) != V_ASN1_NULL))
goto err;
}
ret = len_a == (unsigned)ASN1_STRING_length(b->hashed_msg) &&
memcmp(imprint_a, ASN1_STRING_get0_data(b->hashed_msg), len_a) == 0;
err:
if (!ret)
ERR_raise(ERR_LIB_TS, TS_R_MESSAGE_IMPRINT_MISMATCH);
return ret;
}
static int ts_check_nonces(const ASN1_INTEGER *a, TS_TST_INFO *tst_info)
{
const ASN1_INTEGER *b = tst_info->nonce;
if (!b) {
ERR_raise(ERR_LIB_TS, TS_R_NONCE_NOT_RETURNED);
return 0;
}
/* No error if a nonce is returned without being requested. */
if (ASN1_INTEGER_cmp(a, b) != 0) {
ERR_raise(ERR_LIB_TS, TS_R_NONCE_MISMATCH);
return 0;
}
return 1;
}
/*
* Check if the specified TSA name matches either the subject or one of the
* subject alternative names of the TSA certificate.
*/
static int ts_check_signer_name(GENERAL_NAME *tsa_name, X509 *signer)
{
STACK_OF(GENERAL_NAME) *gen_names = NULL;
int idx = -1;
int found = 0;
if (tsa_name->type == GEN_DIRNAME
&& X509_name_cmp(tsa_name->d.dirn, X509_get_subject_name(signer)) == 0)
return 1;
gen_names = X509_get_ext_d2i(signer, NID_subject_alt_name, NULL, &idx);
while (gen_names != NULL) {
found = ts_find_name(gen_names, tsa_name) >= 0;
if (found)
break;
/*
* Get the next subject alternative name, although there should be no
* more than one.
*/
GENERAL_NAMES_free(gen_names);
gen_names = X509_get_ext_d2i(signer, NID_subject_alt_name, NULL, &idx);
}
GENERAL_NAMES_free(gen_names);
return found;
}
/* Returns 1 if name is in gen_names, 0 otherwise. */
static int ts_find_name(STACK_OF(GENERAL_NAME) *gen_names, GENERAL_NAME *name)
{
int i, found;
for (i = 0, found = 0; !found && i < sk_GENERAL_NAME_num(gen_names); ++i) {
GENERAL_NAME *current = sk_GENERAL_NAME_value(gen_names, i);
found = GENERAL_NAME_cmp(current, name) == 0;
}
return found ? i - 1 : -1;
}
|
./openssl/crypto/ts/ts_rsp_print.c | /*
* Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/objects.h>
#include <openssl/bn.h>
#include <openssl/x509v3.h>
#include <openssl/ts.h>
#include "ts_local.h"
struct status_map_st {
int bit;
const char *text;
};
static int ts_status_map_print(BIO *bio, const struct status_map_st *a,
const ASN1_BIT_STRING *v);
static int ts_ACCURACY_print_bio(BIO *bio, const TS_ACCURACY *accuracy);
int TS_RESP_print_bio(BIO *bio, TS_RESP *a)
{
BIO_printf(bio, "Status info:\n");
TS_STATUS_INFO_print_bio(bio, a->status_info);
BIO_printf(bio, "\nTST info:\n");
if (a->tst_info != NULL)
TS_TST_INFO_print_bio(bio, a->tst_info);
else
BIO_printf(bio, "Not included.\n");
return 1;
}
int TS_STATUS_INFO_print_bio(BIO *bio, TS_STATUS_INFO *a)
{
static const char *status_map[] = {
"Granted.",
"Granted with modifications.",
"Rejected.",
"Waiting.",
"Revocation warning.",
"Revoked."
};
static const struct status_map_st failure_map[] = {
{TS_INFO_BAD_ALG,
"unrecognized or unsupported algorithm identifier"},
{TS_INFO_BAD_REQUEST,
"transaction not permitted or supported"},
{TS_INFO_BAD_DATA_FORMAT,
"the data submitted has the wrong format"},
{TS_INFO_TIME_NOT_AVAILABLE,
"the TSA's time source is not available"},
{TS_INFO_UNACCEPTED_POLICY,
"the requested TSA policy is not supported by the TSA"},
{TS_INFO_UNACCEPTED_EXTENSION,
"the requested extension is not supported by the TSA"},
{TS_INFO_ADD_INFO_NOT_AVAILABLE,
"the additional information requested could not be understood "
"or is not available"},
{TS_INFO_SYSTEM_FAILURE,
"the request cannot be handled due to system failure"},
{-1, NULL}
};
long status;
int i, lines = 0;
BIO_printf(bio, "Status: ");
status = ASN1_INTEGER_get(a->status);
if (0 <= status && status < (long)OSSL_NELEM(status_map))
BIO_printf(bio, "%s\n", status_map[status]);
else
BIO_printf(bio, "out of bounds\n");
BIO_printf(bio, "Status description: ");
for (i = 0; i < sk_ASN1_UTF8STRING_num(a->text); ++i) {
if (i > 0)
BIO_puts(bio, "\t");
ASN1_STRING_print_ex(bio, sk_ASN1_UTF8STRING_value(a->text, i), 0);
BIO_puts(bio, "\n");
}
if (i == 0)
BIO_printf(bio, "unspecified\n");
BIO_printf(bio, "Failure info: ");
if (a->failure_info != NULL)
lines = ts_status_map_print(bio, failure_map, a->failure_info);
if (lines == 0)
BIO_printf(bio, "unspecified");
BIO_printf(bio, "\n");
return 1;
}
static int ts_status_map_print(BIO *bio, const struct status_map_st *a,
const ASN1_BIT_STRING *v)
{
int lines = 0;
for (; a->bit >= 0; ++a) {
if (ASN1_BIT_STRING_get_bit(v, a->bit)) {
if (++lines > 1)
BIO_printf(bio, ", ");
BIO_printf(bio, "%s", a->text);
}
}
return lines;
}
int TS_TST_INFO_print_bio(BIO *bio, TS_TST_INFO *a)
{
int v;
if (a == NULL)
return 0;
v = ASN1_INTEGER_get(a->version);
BIO_printf(bio, "Version: %d\n", v);
BIO_printf(bio, "Policy OID: ");
TS_OBJ_print_bio(bio, a->policy_id);
TS_MSG_IMPRINT_print_bio(bio, a->msg_imprint);
BIO_printf(bio, "Serial number: ");
if (a->serial == NULL)
BIO_printf(bio, "unspecified");
else
TS_ASN1_INTEGER_print_bio(bio, a->serial);
BIO_write(bio, "\n", 1);
BIO_printf(bio, "Time stamp: ");
ASN1_GENERALIZEDTIME_print(bio, a->time);
BIO_write(bio, "\n", 1);
BIO_printf(bio, "Accuracy: ");
if (a->accuracy == NULL)
BIO_printf(bio, "unspecified");
else
ts_ACCURACY_print_bio(bio, a->accuracy);
BIO_write(bio, "\n", 1);
BIO_printf(bio, "Ordering: %s\n", a->ordering ? "yes" : "no");
BIO_printf(bio, "Nonce: ");
if (a->nonce == NULL)
BIO_printf(bio, "unspecified");
else
TS_ASN1_INTEGER_print_bio(bio, a->nonce);
BIO_write(bio, "\n", 1);
BIO_printf(bio, "TSA: ");
if (a->tsa == NULL)
BIO_printf(bio, "unspecified");
else {
STACK_OF(CONF_VALUE) *nval;
if ((nval = i2v_GENERAL_NAME(NULL, a->tsa, NULL)))
X509V3_EXT_val_prn(bio, nval, 0, 0);
sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
}
BIO_write(bio, "\n", 1);
TS_ext_print_bio(bio, a->extensions);
return 1;
}
static int ts_ACCURACY_print_bio(BIO *bio, const TS_ACCURACY *a)
{
if (a->seconds != NULL)
TS_ASN1_INTEGER_print_bio(bio, a->seconds);
else
BIO_printf(bio, "unspecified");
BIO_printf(bio, " seconds, ");
if (a->millis != NULL)
TS_ASN1_INTEGER_print_bio(bio, a->millis);
else
BIO_printf(bio, "unspecified");
BIO_printf(bio, " millis, ");
if (a->micros != NULL)
TS_ASN1_INTEGER_print_bio(bio, a->micros);
else
BIO_printf(bio, "unspecified");
BIO_printf(bio, " micros");
return 1;
}
|
./openssl/crypto/ts/ts_asn1.c | /*
* Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/ts.h>
#include <openssl/err.h>
#include <openssl/asn1t.h>
#include "ts_local.h"
ASN1_SEQUENCE(TS_MSG_IMPRINT) = {
ASN1_SIMPLE(TS_MSG_IMPRINT, hash_algo, X509_ALGOR),
ASN1_SIMPLE(TS_MSG_IMPRINT, hashed_msg, ASN1_OCTET_STRING)
} static_ASN1_SEQUENCE_END(TS_MSG_IMPRINT)
IMPLEMENT_ASN1_FUNCTIONS(TS_MSG_IMPRINT)
IMPLEMENT_ASN1_DUP_FUNCTION(TS_MSG_IMPRINT)
TS_MSG_IMPRINT *d2i_TS_MSG_IMPRINT_bio(BIO *bp, TS_MSG_IMPRINT **a)
{
return ASN1_d2i_bio_of(TS_MSG_IMPRINT, TS_MSG_IMPRINT_new,
d2i_TS_MSG_IMPRINT, bp, a);
}
int i2d_TS_MSG_IMPRINT_bio(BIO *bp, const TS_MSG_IMPRINT *a)
{
return ASN1_i2d_bio_of(TS_MSG_IMPRINT, i2d_TS_MSG_IMPRINT, bp, a);
}
#ifndef OPENSSL_NO_STDIO
TS_MSG_IMPRINT *d2i_TS_MSG_IMPRINT_fp(FILE *fp, TS_MSG_IMPRINT **a)
{
return ASN1_d2i_fp_of(TS_MSG_IMPRINT, TS_MSG_IMPRINT_new,
d2i_TS_MSG_IMPRINT, fp, a);
}
int i2d_TS_MSG_IMPRINT_fp(FILE *fp, const TS_MSG_IMPRINT *a)
{
return ASN1_i2d_fp_of(TS_MSG_IMPRINT, i2d_TS_MSG_IMPRINT, fp, a);
}
#endif
ASN1_SEQUENCE(TS_REQ) = {
ASN1_SIMPLE(TS_REQ, version, ASN1_INTEGER),
ASN1_SIMPLE(TS_REQ, msg_imprint, TS_MSG_IMPRINT),
ASN1_OPT(TS_REQ, policy_id, ASN1_OBJECT),
ASN1_OPT(TS_REQ, nonce, ASN1_INTEGER),
ASN1_OPT(TS_REQ, cert_req, ASN1_FBOOLEAN),
ASN1_IMP_SEQUENCE_OF_OPT(TS_REQ, extensions, X509_EXTENSION, 0)
} static_ASN1_SEQUENCE_END(TS_REQ)
IMPLEMENT_ASN1_FUNCTIONS(TS_REQ)
IMPLEMENT_ASN1_DUP_FUNCTION(TS_REQ)
TS_REQ *d2i_TS_REQ_bio(BIO *bp, TS_REQ **a)
{
return ASN1_d2i_bio_of(TS_REQ, TS_REQ_new, d2i_TS_REQ, bp, a);
}
int i2d_TS_REQ_bio(BIO *bp, const TS_REQ *a)
{
return ASN1_i2d_bio_of(TS_REQ, i2d_TS_REQ, bp, a);
}
#ifndef OPENSSL_NO_STDIO
TS_REQ *d2i_TS_REQ_fp(FILE *fp, TS_REQ **a)
{
return ASN1_d2i_fp_of(TS_REQ, TS_REQ_new, d2i_TS_REQ, fp, a);
}
int i2d_TS_REQ_fp(FILE *fp, const TS_REQ *a)
{
return ASN1_i2d_fp_of(TS_REQ, i2d_TS_REQ, fp, a);
}
#endif
ASN1_SEQUENCE(TS_ACCURACY) = {
ASN1_OPT(TS_ACCURACY, seconds, ASN1_INTEGER),
ASN1_IMP_OPT(TS_ACCURACY, millis, ASN1_INTEGER, 0),
ASN1_IMP_OPT(TS_ACCURACY, micros, ASN1_INTEGER, 1)
} static_ASN1_SEQUENCE_END(TS_ACCURACY)
IMPLEMENT_ASN1_FUNCTIONS(TS_ACCURACY)
IMPLEMENT_ASN1_DUP_FUNCTION(TS_ACCURACY)
ASN1_SEQUENCE(TS_TST_INFO) = {
ASN1_SIMPLE(TS_TST_INFO, version, ASN1_INTEGER),
ASN1_SIMPLE(TS_TST_INFO, policy_id, ASN1_OBJECT),
ASN1_SIMPLE(TS_TST_INFO, msg_imprint, TS_MSG_IMPRINT),
ASN1_SIMPLE(TS_TST_INFO, serial, ASN1_INTEGER),
ASN1_SIMPLE(TS_TST_INFO, time, ASN1_GENERALIZEDTIME),
ASN1_OPT(TS_TST_INFO, accuracy, TS_ACCURACY),
ASN1_OPT(TS_TST_INFO, ordering, ASN1_FBOOLEAN),
ASN1_OPT(TS_TST_INFO, nonce, ASN1_INTEGER),
ASN1_EXP_OPT(TS_TST_INFO, tsa, GENERAL_NAME, 0),
ASN1_IMP_SEQUENCE_OF_OPT(TS_TST_INFO, extensions, X509_EXTENSION, 1)
} static_ASN1_SEQUENCE_END(TS_TST_INFO)
IMPLEMENT_ASN1_FUNCTIONS(TS_TST_INFO)
IMPLEMENT_ASN1_DUP_FUNCTION(TS_TST_INFO)
TS_TST_INFO *d2i_TS_TST_INFO_bio(BIO *bp, TS_TST_INFO **a)
{
return ASN1_d2i_bio_of(TS_TST_INFO, TS_TST_INFO_new, d2i_TS_TST_INFO, bp,
a);
}
int i2d_TS_TST_INFO_bio(BIO *bp, const TS_TST_INFO *a)
{
return ASN1_i2d_bio_of(TS_TST_INFO, i2d_TS_TST_INFO, bp, a);
}
#ifndef OPENSSL_NO_STDIO
TS_TST_INFO *d2i_TS_TST_INFO_fp(FILE *fp, TS_TST_INFO **a)
{
return ASN1_d2i_fp_of(TS_TST_INFO, TS_TST_INFO_new, d2i_TS_TST_INFO, fp,
a);
}
int i2d_TS_TST_INFO_fp(FILE *fp, const TS_TST_INFO *a)
{
return ASN1_i2d_fp_of(TS_TST_INFO, i2d_TS_TST_INFO, fp, a);
}
#endif
ASN1_SEQUENCE(TS_STATUS_INFO) = {
ASN1_SIMPLE(TS_STATUS_INFO, status, ASN1_INTEGER),
ASN1_SEQUENCE_OF_OPT(TS_STATUS_INFO, text, ASN1_UTF8STRING),
ASN1_OPT(TS_STATUS_INFO, failure_info, ASN1_BIT_STRING)
} static_ASN1_SEQUENCE_END(TS_STATUS_INFO)
IMPLEMENT_ASN1_FUNCTIONS(TS_STATUS_INFO)
IMPLEMENT_ASN1_DUP_FUNCTION(TS_STATUS_INFO)
static int ts_resp_set_tst_info(TS_RESP *a)
{
long status;
status = ASN1_INTEGER_get(a->status_info->status);
if (a->token) {
if (status != 0 && status != 1) {
ERR_raise(ERR_LIB_TS, TS_R_TOKEN_PRESENT);
return 0;
}
TS_TST_INFO_free(a->tst_info);
a->tst_info = PKCS7_to_TS_TST_INFO(a->token);
if (!a->tst_info) {
ERR_raise(ERR_LIB_TS, TS_R_PKCS7_TO_TS_TST_INFO_FAILED);
return 0;
}
} else if (status == 0 || status == 1) {
ERR_raise(ERR_LIB_TS, TS_R_TOKEN_NOT_PRESENT);
return 0;
}
return 1;
}
static int ts_resp_cb(int op, ASN1_VALUE **pval, const ASN1_ITEM *it,
void *exarg)
{
TS_RESP *ts_resp = (TS_RESP *)*pval;
if (op == ASN1_OP_NEW_POST) {
ts_resp->tst_info = NULL;
} else if (op == ASN1_OP_FREE_POST) {
TS_TST_INFO_free(ts_resp->tst_info);
} else if (op == ASN1_OP_D2I_POST) {
if (ts_resp_set_tst_info(ts_resp) == 0)
return 0;
}
return 1;
}
ASN1_SEQUENCE_cb(TS_RESP, ts_resp_cb) = {
ASN1_SIMPLE(TS_RESP, status_info, TS_STATUS_INFO),
ASN1_OPT(TS_RESP, token, PKCS7),
} static_ASN1_SEQUENCE_END_cb(TS_RESP, TS_RESP)
IMPLEMENT_ASN1_FUNCTIONS(TS_RESP)
IMPLEMENT_ASN1_DUP_FUNCTION(TS_RESP)
TS_RESP *d2i_TS_RESP_bio(BIO *bp, TS_RESP **a)
{
return ASN1_d2i_bio_of(TS_RESP, TS_RESP_new, d2i_TS_RESP, bp, a);
}
int i2d_TS_RESP_bio(BIO *bp, const TS_RESP *a)
{
return ASN1_i2d_bio_of(TS_RESP, i2d_TS_RESP, bp, a);
}
#ifndef OPENSSL_NO_STDIO
TS_RESP *d2i_TS_RESP_fp(FILE *fp, TS_RESP **a)
{
return ASN1_d2i_fp_of(TS_RESP, TS_RESP_new, d2i_TS_RESP, fp, a);
}
int i2d_TS_RESP_fp(FILE *fp, const TS_RESP *a)
{
return ASN1_i2d_fp_of(TS_RESP, i2d_TS_RESP, fp, a);
}
#endif
/* Getting encapsulated TS_TST_INFO object from PKCS7. */
TS_TST_INFO *PKCS7_to_TS_TST_INFO(PKCS7 *token)
{
PKCS7_SIGNED *pkcs7_signed;
PKCS7 *enveloped;
ASN1_TYPE *tst_info_wrapper;
ASN1_OCTET_STRING *tst_info_der;
const unsigned char *p;
if (!PKCS7_type_is_signed(token)) {
ERR_raise(ERR_LIB_TS, TS_R_BAD_PKCS7_TYPE);
return NULL;
}
if (PKCS7_get_detached(token)) {
ERR_raise(ERR_LIB_TS, TS_R_DETACHED_CONTENT);
return NULL;
}
pkcs7_signed = token->d.sign;
enveloped = pkcs7_signed->contents;
if (OBJ_obj2nid(enveloped->type) != NID_id_smime_ct_TSTInfo) {
ERR_raise(ERR_LIB_TS, TS_R_BAD_PKCS7_TYPE);
return NULL;
}
tst_info_wrapper = enveloped->d.other;
if (tst_info_wrapper->type != V_ASN1_OCTET_STRING) {
ERR_raise(ERR_LIB_TS, TS_R_BAD_TYPE);
return NULL;
}
tst_info_der = tst_info_wrapper->value.octet_string;
p = tst_info_der->data;
return d2i_TS_TST_INFO(NULL, &p, tst_info_der->length);
}
|
./openssl/crypto/ts/ts_conf.c | /*
* Copyright 2006-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/* We need to use some engine deprecated APIs */
#define OPENSSL_SUPPRESS_DEPRECATED
#include <string.h>
#include <openssl/crypto.h>
#include "internal/cryptlib.h"
#include <openssl/pem.h>
#include <openssl/engine.h>
#include <openssl/ts.h>
#include <openssl/conf_api.h>
/* Macro definitions for the configuration file. */
#define BASE_SECTION "tsa"
#define ENV_DEFAULT_TSA "default_tsa"
#define ENV_SERIAL "serial"
#define ENV_CRYPTO_DEVICE "crypto_device"
#define ENV_SIGNER_CERT "signer_cert"
#define ENV_CERTS "certs"
#define ENV_SIGNER_KEY "signer_key"
#define ENV_SIGNER_DIGEST "signer_digest"
#define ENV_DEFAULT_POLICY "default_policy"
#define ENV_OTHER_POLICIES "other_policies"
#define ENV_DIGESTS "digests"
#define ENV_ACCURACY "accuracy"
#define ENV_ORDERING "ordering"
#define ENV_TSA_NAME "tsa_name"
#define ENV_ESS_CERT_ID_CHAIN "ess_cert_id_chain"
#define ENV_VALUE_SECS "secs"
#define ENV_VALUE_MILLISECS "millisecs"
#define ENV_VALUE_MICROSECS "microsecs"
#define ENV_CLOCK_PRECISION_DIGITS "clock_precision_digits"
#define ENV_VALUE_YES "yes"
#define ENV_VALUE_NO "no"
#define ENV_ESS_CERT_ID_ALG "ess_cert_id_alg"
/* Function definitions for certificate and key loading. */
X509 *TS_CONF_load_cert(const char *file)
{
BIO *cert = NULL;
X509 *x = NULL;
if ((cert = BIO_new_file(file, "r")) == NULL)
goto end;
x = PEM_read_bio_X509_AUX(cert, NULL, NULL, NULL);
end:
if (x == NULL)
ERR_raise(ERR_LIB_TS, TS_R_CANNOT_LOAD_CERT);
BIO_free(cert);
return x;
}
STACK_OF(X509) *TS_CONF_load_certs(const char *file)
{
BIO *certs = NULL;
STACK_OF(X509) *othercerts = NULL;
STACK_OF(X509_INFO) *allcerts = NULL;
int i;
if ((certs = BIO_new_file(file, "r")) == NULL)
goto end;
if ((othercerts = sk_X509_new_null()) == NULL)
goto end;
allcerts = PEM_X509_INFO_read_bio(certs, NULL, NULL, NULL);
for (i = 0; i < sk_X509_INFO_num(allcerts); i++) {
X509_INFO *xi = sk_X509_INFO_value(allcerts, i);
if (xi->x509 != NULL) {
if (!X509_add_cert(othercerts, xi->x509, X509_ADD_FLAG_DEFAULT)) {
OSSL_STACK_OF_X509_free(othercerts);
othercerts = NULL;
goto end;
}
xi->x509 = NULL;
}
}
end:
if (othercerts == NULL)
ERR_raise(ERR_LIB_TS, TS_R_CANNOT_LOAD_CERT);
sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
BIO_free(certs);
return othercerts;
}
EVP_PKEY *TS_CONF_load_key(const char *file, const char *pass)
{
BIO *key = NULL;
EVP_PKEY *pkey = NULL;
if ((key = BIO_new_file(file, "r")) == NULL)
goto end;
pkey = PEM_read_bio_PrivateKey(key, NULL, NULL, (char *)pass);
end:
if (pkey == NULL)
ERR_raise(ERR_LIB_TS, TS_R_CANNOT_LOAD_KEY);
BIO_free(key);
return pkey;
}
/* Function definitions for handling configuration options. */
static void ts_CONF_lookup_fail(const char *name, const char *tag)
{
ERR_raise_data(ERR_LIB_TS, TS_R_VAR_LOOKUP_FAILURE, "%s::%s", name, tag);
}
static void ts_CONF_invalid(const char *name, const char *tag)
{
ERR_raise_data(ERR_LIB_TS, TS_R_VAR_BAD_VALUE, "%s::%s", name, tag);
}
const char *TS_CONF_get_tsa_section(CONF *conf, const char *section)
{
if (!section) {
section = NCONF_get_string(conf, BASE_SECTION, ENV_DEFAULT_TSA);
if (!section)
ts_CONF_lookup_fail(BASE_SECTION, ENV_DEFAULT_TSA);
}
return section;
}
int TS_CONF_set_serial(CONF *conf, const char *section, TS_serial_cb cb,
TS_RESP_CTX *ctx)
{
int ret = 0;
char *serial = NCONF_get_string(conf, section, ENV_SERIAL);
if (!serial) {
ts_CONF_lookup_fail(section, ENV_SERIAL);
goto err;
}
TS_RESP_CTX_set_serial_cb(ctx, cb, serial);
ret = 1;
err:
return ret;
}
#ifndef OPENSSL_NO_ENGINE
int TS_CONF_set_crypto_device(CONF *conf, const char *section,
const char *device)
{
int ret = 0;
if (device == NULL)
device = NCONF_get_string(conf, section, ENV_CRYPTO_DEVICE);
if (device && !TS_CONF_set_default_engine(device)) {
ts_CONF_invalid(section, ENV_CRYPTO_DEVICE);
goto err;
}
ret = 1;
err:
return ret;
}
int TS_CONF_set_default_engine(const char *name)
{
ENGINE *e = NULL;
int ret = 0;
if (strcmp(name, "builtin") == 0)
return 1;
if ((e = ENGINE_by_id(name)) == NULL)
goto err;
if (strcmp(name, "chil") == 0)
ENGINE_ctrl(e, ENGINE_CTRL_CHIL_SET_FORKCHECK, 1, 0, 0);
if (!ENGINE_set_default(e, ENGINE_METHOD_ALL))
goto err;
ret = 1;
err:
if (!ret)
ERR_raise_data(ERR_LIB_TS, TS_R_COULD_NOT_SET_ENGINE,
"engine:%s", name);
ENGINE_free(e);
return ret;
}
#endif
int TS_CONF_set_signer_cert(CONF *conf, const char *section,
const char *cert, TS_RESP_CTX *ctx)
{
int ret = 0;
X509 *cert_obj = NULL;
if (cert == NULL) {
cert = NCONF_get_string(conf, section, ENV_SIGNER_CERT);
if (cert == NULL) {
ts_CONF_lookup_fail(section, ENV_SIGNER_CERT);
goto err;
}
}
if ((cert_obj = TS_CONF_load_cert(cert)) == NULL)
goto err;
if (!TS_RESP_CTX_set_signer_cert(ctx, cert_obj))
goto err;
ret = 1;
err:
X509_free(cert_obj);
return ret;
}
int TS_CONF_set_certs(CONF *conf, const char *section, const char *certs,
TS_RESP_CTX *ctx)
{
int ret = 0;
STACK_OF(X509) *certs_obj = NULL;
if (certs == NULL) {
/* Certificate chain is optional. */
if ((certs = NCONF_get_string(conf, section, ENV_CERTS)) == NULL)
goto end;
}
if ((certs_obj = TS_CONF_load_certs(certs)) == NULL)
goto err;
if (!TS_RESP_CTX_set_certs(ctx, certs_obj))
goto err;
end:
ret = 1;
err:
OSSL_STACK_OF_X509_free(certs_obj);
return ret;
}
int TS_CONF_set_signer_key(CONF *conf, const char *section,
const char *key, const char *pass,
TS_RESP_CTX *ctx)
{
int ret = 0;
EVP_PKEY *key_obj = NULL;
if (!key)
key = NCONF_get_string(conf, section, ENV_SIGNER_KEY);
if (!key) {
ts_CONF_lookup_fail(section, ENV_SIGNER_KEY);
goto err;
}
if ((key_obj = TS_CONF_load_key(key, pass)) == NULL)
goto err;
if (!TS_RESP_CTX_set_signer_key(ctx, key_obj))
goto err;
ret = 1;
err:
EVP_PKEY_free(key_obj);
return ret;
}
int TS_CONF_set_signer_digest(CONF *conf, const char *section,
const char *md, TS_RESP_CTX *ctx)
{
int ret = 0;
const EVP_MD *sign_md = NULL;
if (md == NULL)
md = NCONF_get_string(conf, section, ENV_SIGNER_DIGEST);
if (md == NULL) {
ts_CONF_lookup_fail(section, ENV_SIGNER_DIGEST);
goto err;
}
sign_md = EVP_get_digestbyname(md);
if (sign_md == NULL) {
ts_CONF_invalid(section, ENV_SIGNER_DIGEST);
goto err;
}
if (!TS_RESP_CTX_set_signer_digest(ctx, sign_md))
goto err;
ret = 1;
err:
return ret;
}
int TS_CONF_set_def_policy(CONF *conf, const char *section,
const char *policy, TS_RESP_CTX *ctx)
{
int ret = 0;
ASN1_OBJECT *policy_obj = NULL;
if (policy == NULL)
policy = NCONF_get_string(conf, section, ENV_DEFAULT_POLICY);
if (policy == NULL) {
ts_CONF_lookup_fail(section, ENV_DEFAULT_POLICY);
goto err;
}
if ((policy_obj = OBJ_txt2obj(policy, 0)) == NULL) {
ts_CONF_invalid(section, ENV_DEFAULT_POLICY);
goto err;
}
if (!TS_RESP_CTX_set_def_policy(ctx, policy_obj))
goto err;
ret = 1;
err:
ASN1_OBJECT_free(policy_obj);
return ret;
}
int TS_CONF_set_policies(CONF *conf, const char *section, TS_RESP_CTX *ctx)
{
int ret = 0;
int i;
STACK_OF(CONF_VALUE) *list = NULL;
char *policies = NCONF_get_string(conf, section, ENV_OTHER_POLICIES);
/* If no other policy is specified, that's fine. */
if (policies && (list = X509V3_parse_list(policies)) == NULL) {
ts_CONF_invalid(section, ENV_OTHER_POLICIES);
goto err;
}
for (i = 0; i < sk_CONF_VALUE_num(list); ++i) {
CONF_VALUE *val = sk_CONF_VALUE_value(list, i);
const char *extval = val->value ? val->value : val->name;
ASN1_OBJECT *objtmp;
if ((objtmp = OBJ_txt2obj(extval, 0)) == NULL) {
ts_CONF_invalid(section, ENV_OTHER_POLICIES);
goto err;
}
if (!TS_RESP_CTX_add_policy(ctx, objtmp))
goto err;
ASN1_OBJECT_free(objtmp);
}
ret = 1;
err:
sk_CONF_VALUE_pop_free(list, X509V3_conf_free);
return ret;
}
int TS_CONF_set_digests(CONF *conf, const char *section, TS_RESP_CTX *ctx)
{
int ret = 0;
int i;
STACK_OF(CONF_VALUE) *list = NULL;
char *digests = NCONF_get_string(conf, section, ENV_DIGESTS);
if (digests == NULL) {
ts_CONF_lookup_fail(section, ENV_DIGESTS);
goto err;
}
if ((list = X509V3_parse_list(digests)) == NULL) {
ts_CONF_invalid(section, ENV_DIGESTS);
goto err;
}
if (sk_CONF_VALUE_num(list) == 0) {
ts_CONF_invalid(section, ENV_DIGESTS);
goto err;
}
for (i = 0; i < sk_CONF_VALUE_num(list); ++i) {
CONF_VALUE *val = sk_CONF_VALUE_value(list, i);
const char *extval = val->value ? val->value : val->name;
const EVP_MD *md;
if ((md = EVP_get_digestbyname(extval)) == NULL) {
ts_CONF_invalid(section, ENV_DIGESTS);
goto err;
}
if (!TS_RESP_CTX_add_md(ctx, md))
goto err;
}
ret = 1;
err:
sk_CONF_VALUE_pop_free(list, X509V3_conf_free);
return ret;
}
int TS_CONF_set_accuracy(CONF *conf, const char *section, TS_RESP_CTX *ctx)
{
int ret = 0;
int i;
int secs = 0, millis = 0, micros = 0;
STACK_OF(CONF_VALUE) *list = NULL;
char *accuracy = NCONF_get_string(conf, section, ENV_ACCURACY);
if (accuracy && (list = X509V3_parse_list(accuracy)) == NULL) {
ts_CONF_invalid(section, ENV_ACCURACY);
goto err;
}
for (i = 0; i < sk_CONF_VALUE_num(list); ++i) {
CONF_VALUE *val = sk_CONF_VALUE_value(list, i);
if (strcmp(val->name, ENV_VALUE_SECS) == 0) {
if (val->value)
secs = atoi(val->value);
} else if (strcmp(val->name, ENV_VALUE_MILLISECS) == 0) {
if (val->value)
millis = atoi(val->value);
} else if (strcmp(val->name, ENV_VALUE_MICROSECS) == 0) {
if (val->value)
micros = atoi(val->value);
} else {
ts_CONF_invalid(section, ENV_ACCURACY);
goto err;
}
}
if (!TS_RESP_CTX_set_accuracy(ctx, secs, millis, micros))
goto err;
ret = 1;
err:
sk_CONF_VALUE_pop_free(list, X509V3_conf_free);
return ret;
}
int TS_CONF_set_clock_precision_digits(const CONF *conf, const char *section,
TS_RESP_CTX *ctx)
{
int ret = 0;
long digits = 0;
/*
* If not specified, set the default value to 0, i.e. sec precision
*/
digits = _CONF_get_number(conf, section, ENV_CLOCK_PRECISION_DIGITS);
if (digits < 0 || digits > TS_MAX_CLOCK_PRECISION_DIGITS) {
ts_CONF_invalid(section, ENV_CLOCK_PRECISION_DIGITS);
goto err;
}
if (!TS_RESP_CTX_set_clock_precision_digits(ctx, digits))
goto err;
return 1;
err:
return ret;
}
static int ts_CONF_add_flag(CONF *conf, const char *section,
const char *field, int flag, TS_RESP_CTX *ctx)
{
const char *value = NCONF_get_string(conf, section, field);
if (value) {
if (strcmp(value, ENV_VALUE_YES) == 0)
TS_RESP_CTX_add_flags(ctx, flag);
else if (strcmp(value, ENV_VALUE_NO) != 0) {
ts_CONF_invalid(section, field);
return 0;
}
}
return 1;
}
int TS_CONF_set_ordering(CONF *conf, const char *section, TS_RESP_CTX *ctx)
{
return ts_CONF_add_flag(conf, section, ENV_ORDERING, TS_ORDERING, ctx);
}
int TS_CONF_set_tsa_name(CONF *conf, const char *section, TS_RESP_CTX *ctx)
{
return ts_CONF_add_flag(conf, section, ENV_TSA_NAME, TS_TSA_NAME, ctx);
}
int TS_CONF_set_ess_cert_id_chain(CONF *conf, const char *section,
TS_RESP_CTX *ctx)
{
return ts_CONF_add_flag(conf, section, ENV_ESS_CERT_ID_CHAIN,
TS_ESS_CERT_ID_CHAIN, ctx);
}
int TS_CONF_set_ess_cert_id_digest(CONF *conf, const char *section,
TS_RESP_CTX *ctx)
{
int ret = 0;
const EVP_MD *cert_md = NULL;
const char *md = NCONF_get_string(conf, section, ENV_ESS_CERT_ID_ALG);
if (md == NULL)
md = "sha256";
cert_md = EVP_get_digestbyname(md);
if (cert_md == NULL) {
ts_CONF_invalid(section, ENV_ESS_CERT_ID_ALG);
goto err;
}
if (!TS_RESP_CTX_set_ess_cert_id_digest(ctx, cert_md))
goto err;
ret = 1;
err:
return ret;
}
|
./openssl/crypto/ts/ts_req_utils.c | /*
* Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/objects.h>
#include <openssl/x509v3.h>
#include <openssl/ts.h>
#include "ts_local.h"
int TS_REQ_set_version(TS_REQ *a, long version)
{
return ASN1_INTEGER_set(a->version, version);
}
long TS_REQ_get_version(const TS_REQ *a)
{
return ASN1_INTEGER_get(a->version);
}
int TS_REQ_set_msg_imprint(TS_REQ *a, TS_MSG_IMPRINT *msg_imprint)
{
TS_MSG_IMPRINT *new_msg_imprint;
if (a->msg_imprint == msg_imprint)
return 1;
new_msg_imprint = TS_MSG_IMPRINT_dup(msg_imprint);
if (new_msg_imprint == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_TS_LIB);
return 0;
}
TS_MSG_IMPRINT_free(a->msg_imprint);
a->msg_imprint = new_msg_imprint;
return 1;
}
TS_MSG_IMPRINT *TS_REQ_get_msg_imprint(TS_REQ *a)
{
return a->msg_imprint;
}
int TS_MSG_IMPRINT_set_algo(TS_MSG_IMPRINT *a, X509_ALGOR *alg)
{
X509_ALGOR *new_alg;
if (a->hash_algo == alg)
return 1;
new_alg = X509_ALGOR_dup(alg);
if (new_alg == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
return 0;
}
X509_ALGOR_free(a->hash_algo);
a->hash_algo = new_alg;
return 1;
}
X509_ALGOR *TS_MSG_IMPRINT_get_algo(TS_MSG_IMPRINT *a)
{
return a->hash_algo;
}
int TS_MSG_IMPRINT_set_msg(TS_MSG_IMPRINT *a, unsigned char *d, int len)
{
return ASN1_OCTET_STRING_set(a->hashed_msg, d, len);
}
ASN1_OCTET_STRING *TS_MSG_IMPRINT_get_msg(TS_MSG_IMPRINT *a)
{
return a->hashed_msg;
}
int TS_REQ_set_policy_id(TS_REQ *a, const ASN1_OBJECT *policy)
{
ASN1_OBJECT *new_policy;
if (a->policy_id == policy)
return 1;
new_policy = OBJ_dup(policy);
if (new_policy == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_OBJ_LIB);
return 0;
}
ASN1_OBJECT_free(a->policy_id);
a->policy_id = new_policy;
return 1;
}
ASN1_OBJECT *TS_REQ_get_policy_id(TS_REQ *a)
{
return a->policy_id;
}
int TS_REQ_set_nonce(TS_REQ *a, const ASN1_INTEGER *nonce)
{
ASN1_INTEGER *new_nonce;
if (a->nonce == nonce)
return 1;
new_nonce = ASN1_INTEGER_dup(nonce);
if (new_nonce == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
return 0;
}
ASN1_INTEGER_free(a->nonce);
a->nonce = new_nonce;
return 1;
}
const ASN1_INTEGER *TS_REQ_get_nonce(const TS_REQ *a)
{
return a->nonce;
}
int TS_REQ_set_cert_req(TS_REQ *a, int cert_req)
{
a->cert_req = cert_req ? 0xFF : 0x00;
return 1;
}
int TS_REQ_get_cert_req(const TS_REQ *a)
{
return a->cert_req ? 1 : 0;
}
STACK_OF(X509_EXTENSION) *TS_REQ_get_exts(TS_REQ *a)
{
return a->extensions;
}
void TS_REQ_ext_free(TS_REQ *a)
{
if (!a)
return;
sk_X509_EXTENSION_pop_free(a->extensions, X509_EXTENSION_free);
a->extensions = NULL;
}
int TS_REQ_get_ext_count(TS_REQ *a)
{
return X509v3_get_ext_count(a->extensions);
}
int TS_REQ_get_ext_by_NID(TS_REQ *a, int nid, int lastpos)
{
return X509v3_get_ext_by_NID(a->extensions, nid, lastpos);
}
int TS_REQ_get_ext_by_OBJ(TS_REQ *a, const ASN1_OBJECT *obj, int lastpos)
{
return X509v3_get_ext_by_OBJ(a->extensions, obj, lastpos);
}
int TS_REQ_get_ext_by_critical(TS_REQ *a, int crit, int lastpos)
{
return X509v3_get_ext_by_critical(a->extensions, crit, lastpos);
}
X509_EXTENSION *TS_REQ_get_ext(TS_REQ *a, int loc)
{
return X509v3_get_ext(a->extensions, loc);
}
X509_EXTENSION *TS_REQ_delete_ext(TS_REQ *a, int loc)
{
return X509v3_delete_ext(a->extensions, loc);
}
int TS_REQ_add_ext(TS_REQ *a, X509_EXTENSION *ex, int loc)
{
return X509v3_add_ext(&a->extensions, ex, loc) != NULL;
}
void *TS_REQ_get_ext_d2i(TS_REQ *a, int nid, int *crit, int *idx)
{
return X509V3_get_d2i(a->extensions, nid, crit, idx);
}
|
./openssl/crypto/ts/ts_lib.c | /*
* Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/objects.h>
#include <openssl/bn.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/ts.h>
#include "ts_local.h"
int TS_ASN1_INTEGER_print_bio(BIO *bio, const ASN1_INTEGER *num)
{
BIGNUM *num_bn;
int result = 0;
char *hex;
num_bn = ASN1_INTEGER_to_BN(num, NULL);
if (num_bn == NULL)
return -1;
if ((hex = BN_bn2hex(num_bn))) {
result = BIO_write(bio, "0x", 2) > 0;
result = result && BIO_write(bio, hex, strlen(hex)) > 0;
OPENSSL_free(hex);
}
BN_free(num_bn);
return result;
}
int TS_OBJ_print_bio(BIO *bio, const ASN1_OBJECT *obj)
{
char obj_txt[128];
OBJ_obj2txt(obj_txt, sizeof(obj_txt), obj, 0);
BIO_printf(bio, "%s\n", obj_txt);
return 1;
}
int TS_ext_print_bio(BIO *bio, const STACK_OF(X509_EXTENSION) *extensions)
{
int i, critical, n;
X509_EXTENSION *ex;
ASN1_OBJECT *obj;
BIO_printf(bio, "Extensions:\n");
n = X509v3_get_ext_count(extensions);
for (i = 0; i < n; i++) {
ex = X509v3_get_ext(extensions, i);
obj = X509_EXTENSION_get_object(ex);
if (i2a_ASN1_OBJECT(bio, obj) < 0)
return 0;
critical = X509_EXTENSION_get_critical(ex);
BIO_printf(bio, ":%s\n", critical ? " critical" : "");
if (!X509V3_EXT_print(bio, ex, 0, 4)) {
BIO_printf(bio, "%4s", "");
ASN1_STRING_print(bio, X509_EXTENSION_get_data(ex));
}
BIO_write(bio, "\n", 1);
}
return 1;
}
int TS_X509_ALGOR_print_bio(BIO *bio, const X509_ALGOR *alg)
{
int i = OBJ_obj2nid(alg->algorithm);
return BIO_printf(bio, "Hash Algorithm: %s\n",
(i == NID_undef) ? "UNKNOWN" : OBJ_nid2ln(i));
}
int TS_MSG_IMPRINT_print_bio(BIO *bio, TS_MSG_IMPRINT *a)
{
ASN1_OCTET_STRING *msg;
TS_X509_ALGOR_print_bio(bio, a->hash_algo);
BIO_printf(bio, "Message data:\n");
msg = a->hashed_msg;
BIO_dump_indent(bio, (const char *)ASN1_STRING_get0_data(msg),
ASN1_STRING_length(msg), 4);
return 1;
}
|
./openssl/crypto/ts/ts_rsp_sign.c | /*
* Copyright 2006-2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "internal/e_os.h"
#include <openssl/objects.h>
#include <openssl/ts.h>
#include <openssl/pkcs7.h>
#include <openssl/crypto.h>
#include "internal/cryptlib.h"
#include "internal/sizes.h"
#include "internal/time.h"
#include "crypto/ess.h"
#include "ts_local.h"
DEFINE_STACK_OF_CONST(EVP_MD)
static ASN1_INTEGER *def_serial_cb(struct TS_resp_ctx *, void *);
static int def_time_cb(struct TS_resp_ctx *, void *, long *sec, long *usec);
static int def_extension_cb(struct TS_resp_ctx *, X509_EXTENSION *, void *);
static void ts_RESP_CTX_init(TS_RESP_CTX *ctx);
static void ts_RESP_CTX_cleanup(TS_RESP_CTX *ctx);
static int ts_RESP_check_request(TS_RESP_CTX *ctx);
static ASN1_OBJECT *ts_RESP_get_policy(TS_RESP_CTX *ctx);
static TS_TST_INFO *ts_RESP_create_tst_info(TS_RESP_CTX *ctx,
ASN1_OBJECT *policy);
static int ts_RESP_process_extensions(TS_RESP_CTX *ctx);
static int ts_RESP_sign(TS_RESP_CTX *ctx);
static int ts_TST_INFO_content_new(PKCS7 *p7);
static ASN1_GENERALIZEDTIME
*TS_RESP_set_genTime_with_precision(ASN1_GENERALIZEDTIME *, long, long,
unsigned);
/* Default callback for response generation. */
static ASN1_INTEGER *def_serial_cb(struct TS_resp_ctx *ctx, void *data)
{
ASN1_INTEGER *serial = ASN1_INTEGER_new();
if (serial == NULL)
goto err;
if (!ASN1_INTEGER_set(serial, 1))
goto err;
return serial;
err:
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
"Error during serial number generation.");
ASN1_INTEGER_free(serial);
return NULL;
}
static int def_time_cb(struct TS_resp_ctx *ctx, void *data,
long *sec, long *usec)
{
OSSL_TIME t;
struct timeval tv;
t = ossl_time_now();
if (ossl_time_is_zero(t)) {
ERR_raise(ERR_LIB_TS, TS_R_TIME_SYSCALL_ERROR);
TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
"Time is not available.");
TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE);
return 0;
}
tv = ossl_time_to_timeval(t);
*sec = (long int)tv.tv_sec;
*usec = (long int)tv.tv_usec;
return 1;
}
static int def_extension_cb(struct TS_resp_ctx *ctx, X509_EXTENSION *ext,
void *data)
{
TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
"Unsupported extension.");
TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_EXTENSION);
return 0;
}
/* TS_RESP_CTX management functions. */
TS_RESP_CTX *TS_RESP_CTX_new_ex(OSSL_LIB_CTX *libctx, const char *propq)
{
TS_RESP_CTX *ctx;
if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL)
return NULL;
if (propq != NULL) {
ctx->propq = OPENSSL_strdup(propq);
if (ctx->propq == NULL) {
OPENSSL_free(ctx);
return NULL;
}
}
ctx->libctx = libctx;
ctx->serial_cb = def_serial_cb;
ctx->time_cb = def_time_cb;
ctx->extension_cb = def_extension_cb;
return ctx;
}
TS_RESP_CTX *TS_RESP_CTX_new(void)
{
return TS_RESP_CTX_new_ex(NULL, NULL);
}
void TS_RESP_CTX_free(TS_RESP_CTX *ctx)
{
if (!ctx)
return;
OPENSSL_free(ctx->propq);
X509_free(ctx->signer_cert);
EVP_PKEY_free(ctx->signer_key);
OSSL_STACK_OF_X509_free(ctx->certs);
sk_ASN1_OBJECT_pop_free(ctx->policies, ASN1_OBJECT_free);
ASN1_OBJECT_free(ctx->default_policy);
sk_EVP_MD_free(ctx->mds); /* No EVP_MD_free method exists. */
ASN1_INTEGER_free(ctx->seconds);
ASN1_INTEGER_free(ctx->millis);
ASN1_INTEGER_free(ctx->micros);
OPENSSL_free(ctx);
}
int TS_RESP_CTX_set_signer_cert(TS_RESP_CTX *ctx, X509 *signer)
{
if (X509_check_purpose(signer, X509_PURPOSE_TIMESTAMP_SIGN, 0) != 1) {
ERR_raise(ERR_LIB_TS, TS_R_INVALID_SIGNER_CERTIFICATE_PURPOSE);
return 0;
}
X509_free(ctx->signer_cert);
ctx->signer_cert = signer;
X509_up_ref(ctx->signer_cert);
return 1;
}
int TS_RESP_CTX_set_signer_key(TS_RESP_CTX *ctx, EVP_PKEY *key)
{
EVP_PKEY_free(ctx->signer_key);
ctx->signer_key = key;
EVP_PKEY_up_ref(ctx->signer_key);
return 1;
}
int TS_RESP_CTX_set_signer_digest(TS_RESP_CTX *ctx, const EVP_MD *md)
{
ctx->signer_md = md;
return 1;
}
int TS_RESP_CTX_set_def_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *def_policy)
{
ASN1_OBJECT_free(ctx->default_policy);
if ((ctx->default_policy = OBJ_dup(def_policy)) == NULL)
goto err;
return 1;
err:
ERR_raise(ERR_LIB_TS, ERR_R_OBJ_LIB);
return 0;
}
int TS_RESP_CTX_set_certs(TS_RESP_CTX *ctx, STACK_OF(X509) *certs)
{
OSSL_STACK_OF_X509_free(ctx->certs);
ctx->certs = NULL;
return certs == NULL || (ctx->certs = X509_chain_up_ref(certs)) != NULL;
}
int TS_RESP_CTX_add_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *policy)
{
ASN1_OBJECT *copy = NULL;
if (ctx->policies == NULL
&& (ctx->policies = sk_ASN1_OBJECT_new_null()) == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_CRYPTO_LIB);
goto err;
}
if ((copy = OBJ_dup(policy)) == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_OBJ_LIB);
goto err;
}
if (!sk_ASN1_OBJECT_push(ctx->policies, copy)) {
ERR_raise(ERR_LIB_TS, ERR_R_CRYPTO_LIB);
goto err;
}
return 1;
err:
ASN1_OBJECT_free(copy);
return 0;
}
int TS_RESP_CTX_add_md(TS_RESP_CTX *ctx, const EVP_MD *md)
{
if (ctx->mds == NULL
&& (ctx->mds = sk_EVP_MD_new_null()) == NULL)
goto err;
if (!sk_EVP_MD_push(ctx->mds, md))
goto err;
return 1;
err:
ERR_raise(ERR_LIB_TS, ERR_R_CRYPTO_LIB);
return 0;
}
#define TS_RESP_CTX_accuracy_free(ctx) \
ASN1_INTEGER_free(ctx->seconds); \
ctx->seconds = NULL; \
ASN1_INTEGER_free(ctx->millis); \
ctx->millis = NULL; \
ASN1_INTEGER_free(ctx->micros); \
ctx->micros = NULL;
int TS_RESP_CTX_set_accuracy(TS_RESP_CTX *ctx,
int secs, int millis, int micros)
{
TS_RESP_CTX_accuracy_free(ctx);
if (secs
&& ((ctx->seconds = ASN1_INTEGER_new()) == NULL
|| !ASN1_INTEGER_set(ctx->seconds, secs)))
goto err;
if (millis
&& ((ctx->millis = ASN1_INTEGER_new()) == NULL
|| !ASN1_INTEGER_set(ctx->millis, millis)))
goto err;
if (micros
&& ((ctx->micros = ASN1_INTEGER_new()) == NULL
|| !ASN1_INTEGER_set(ctx->micros, micros)))
goto err;
return 1;
err:
TS_RESP_CTX_accuracy_free(ctx);
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
return 0;
}
void TS_RESP_CTX_add_flags(TS_RESP_CTX *ctx, int flags)
{
ctx->flags |= flags;
}
void TS_RESP_CTX_set_serial_cb(TS_RESP_CTX *ctx, TS_serial_cb cb, void *data)
{
ctx->serial_cb = cb;
ctx->serial_cb_data = data;
}
void TS_RESP_CTX_set_time_cb(TS_RESP_CTX *ctx, TS_time_cb cb, void *data)
{
ctx->time_cb = cb;
ctx->time_cb_data = data;
}
void TS_RESP_CTX_set_extension_cb(TS_RESP_CTX *ctx,
TS_extension_cb cb, void *data)
{
ctx->extension_cb = cb;
ctx->extension_cb_data = data;
}
int TS_RESP_CTX_set_status_info(TS_RESP_CTX *ctx,
int status, const char *text)
{
TS_STATUS_INFO *si = NULL;
ASN1_UTF8STRING *utf8_text = NULL;
int ret = 0;
if ((si = TS_STATUS_INFO_new()) == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_TS_LIB);
goto err;
}
if (!ASN1_INTEGER_set(si->status, status)) {
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
goto err;
}
if (text) {
if ((utf8_text = ASN1_UTF8STRING_new()) == NULL
|| !ASN1_STRING_set(utf8_text, text, strlen(text))) {
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
goto err;
}
if (si->text == NULL
&& (si->text = sk_ASN1_UTF8STRING_new_null()) == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_CRYPTO_LIB);
goto err;
}
if (!sk_ASN1_UTF8STRING_push(si->text, utf8_text)) {
ERR_raise(ERR_LIB_TS, ERR_R_CRYPTO_LIB);
goto err;
}
utf8_text = NULL; /* Ownership is lost. */
}
if (!TS_RESP_set_status_info(ctx->response, si)) {
ERR_raise(ERR_LIB_TS, ERR_R_TS_LIB);
goto err;
}
ret = 1;
err:
TS_STATUS_INFO_free(si);
ASN1_UTF8STRING_free(utf8_text);
return ret;
}
int TS_RESP_CTX_set_status_info_cond(TS_RESP_CTX *ctx,
int status, const char *text)
{
int ret = 1;
TS_STATUS_INFO *si = ctx->response->status_info;
if (ASN1_INTEGER_get(si->status) == TS_STATUS_GRANTED) {
ret = TS_RESP_CTX_set_status_info(ctx, status, text);
}
return ret;
}
int TS_RESP_CTX_add_failure_info(TS_RESP_CTX *ctx, int failure)
{
TS_STATUS_INFO *si = ctx->response->status_info;
if (si->failure_info == NULL
&& (si->failure_info = ASN1_BIT_STRING_new()) == NULL)
goto err;
if (!ASN1_BIT_STRING_set_bit(si->failure_info, failure, 1))
goto err;
return 1;
err:
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
return 0;
}
TS_REQ *TS_RESP_CTX_get_request(TS_RESP_CTX *ctx)
{
return ctx->request;
}
TS_TST_INFO *TS_RESP_CTX_get_tst_info(TS_RESP_CTX *ctx)
{
return ctx->tst_info;
}
int TS_RESP_CTX_set_clock_precision_digits(TS_RESP_CTX *ctx,
unsigned precision)
{
if (precision > TS_MAX_CLOCK_PRECISION_DIGITS)
return 0;
ctx->clock_precision_digits = precision;
return 1;
}
/* Main entry method of the response generation. */
TS_RESP *TS_RESP_create_response(TS_RESP_CTX *ctx, BIO *req_bio)
{
ASN1_OBJECT *policy;
TS_RESP *response;
int result = 0;
ts_RESP_CTX_init(ctx);
if ((ctx->response = TS_RESP_new()) == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_TS_LIB);
goto end;
}
if ((ctx->request = d2i_TS_REQ_bio(req_bio, NULL)) == NULL) {
TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
"Bad request format or system error.");
TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT);
goto end;
}
if (!TS_RESP_CTX_set_status_info(ctx, TS_STATUS_GRANTED, NULL))
goto end;
if (!ts_RESP_check_request(ctx))
goto end;
if ((policy = ts_RESP_get_policy(ctx)) == NULL)
goto end;
if ((ctx->tst_info = ts_RESP_create_tst_info(ctx, policy)) == NULL)
goto end;
if (!ts_RESP_process_extensions(ctx))
goto end;
if (!ts_RESP_sign(ctx))
goto end;
result = 1;
end:
if (!result) {
ERR_raise(ERR_LIB_TS, TS_R_RESPONSE_SETUP_ERROR);
if (ctx->response != NULL) {
if (TS_RESP_CTX_set_status_info_cond(ctx,
TS_STATUS_REJECTION,
"Error during response "
"generation.") == 0) {
TS_RESP_free(ctx->response);
ctx->response = NULL;
}
}
}
response = ctx->response;
ctx->response = NULL; /* Ownership will be returned to caller. */
ts_RESP_CTX_cleanup(ctx);
return response;
}
/* Initializes the variable part of the context. */
static void ts_RESP_CTX_init(TS_RESP_CTX *ctx)
{
ctx->request = NULL;
ctx->response = NULL;
ctx->tst_info = NULL;
}
/* Cleans up the variable part of the context. */
static void ts_RESP_CTX_cleanup(TS_RESP_CTX *ctx)
{
TS_REQ_free(ctx->request);
ctx->request = NULL;
TS_RESP_free(ctx->response);
ctx->response = NULL;
TS_TST_INFO_free(ctx->tst_info);
ctx->tst_info = NULL;
}
/* Checks the format and content of the request. */
static int ts_RESP_check_request(TS_RESP_CTX *ctx)
{
TS_REQ *request = ctx->request;
TS_MSG_IMPRINT *msg_imprint;
X509_ALGOR *md_alg;
char md_alg_name[OSSL_MAX_NAME_SIZE];
const ASN1_OCTET_STRING *digest;
const EVP_MD *md = NULL;
int i;
if (TS_REQ_get_version(request) != 1) {
TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
"Bad request version.");
TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_REQUEST);
return 0;
}
msg_imprint = request->msg_imprint;
md_alg = msg_imprint->hash_algo;
OBJ_obj2txt(md_alg_name, sizeof(md_alg_name), md_alg->algorithm, 0);
for (i = 0; !md && i < sk_EVP_MD_num(ctx->mds); ++i) {
const EVP_MD *current_md = sk_EVP_MD_value(ctx->mds, i);
if (EVP_MD_is_a(current_md, md_alg_name))
md = current_md;
}
if (!md) {
TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
"Message digest algorithm is "
"not supported.");
TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG);
return 0;
}
if (md_alg->parameter && ASN1_TYPE_get(md_alg->parameter) != V_ASN1_NULL) {
TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
"Superfluous message digest "
"parameter.");
TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG);
return 0;
}
digest = msg_imprint->hashed_msg;
if (digest->length != EVP_MD_get_size(md)) {
TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
"Bad message digest.");
TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT);
return 0;
}
return 1;
}
/* Returns the TSA policy based on the requested and acceptable policies. */
static ASN1_OBJECT *ts_RESP_get_policy(TS_RESP_CTX *ctx)
{
ASN1_OBJECT *requested = ctx->request->policy_id;
ASN1_OBJECT *policy = NULL;
int i;
if (ctx->default_policy == NULL) {
ERR_raise(ERR_LIB_TS, TS_R_INVALID_NULL_POINTER);
return NULL;
}
if (!requested || !OBJ_cmp(requested, ctx->default_policy))
policy = ctx->default_policy;
/* Check if the policy is acceptable. */
for (i = 0; !policy && i < sk_ASN1_OBJECT_num(ctx->policies); ++i) {
ASN1_OBJECT *current = sk_ASN1_OBJECT_value(ctx->policies, i);
if (!OBJ_cmp(requested, current))
policy = current;
}
if (policy == NULL) {
ERR_raise(ERR_LIB_TS, TS_R_UNACCEPTABLE_POLICY);
TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
"Requested policy is not " "supported.");
TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_POLICY);
}
return policy;
}
/* Creates the TS_TST_INFO object based on the settings of the context. */
static TS_TST_INFO *ts_RESP_create_tst_info(TS_RESP_CTX *ctx,
ASN1_OBJECT *policy)
{
int result = 0;
TS_TST_INFO *tst_info = NULL;
ASN1_INTEGER *serial = NULL;
ASN1_GENERALIZEDTIME *asn1_time = NULL;
long sec, usec;
TS_ACCURACY *accuracy = NULL;
const ASN1_INTEGER *nonce;
GENERAL_NAME *tsa_name = NULL;
if ((tst_info = TS_TST_INFO_new()) == NULL)
goto end;
if (!TS_TST_INFO_set_version(tst_info, 1))
goto end;
if (!TS_TST_INFO_set_policy_id(tst_info, policy))
goto end;
if (!TS_TST_INFO_set_msg_imprint(tst_info, ctx->request->msg_imprint))
goto end;
if ((serial = ctx->serial_cb(ctx, ctx->serial_cb_data)) == NULL
|| !TS_TST_INFO_set_serial(tst_info, serial))
goto end;
if (!ctx->time_cb(ctx, ctx->time_cb_data, &sec, &usec)
|| (asn1_time =
TS_RESP_set_genTime_with_precision(NULL, sec, usec,
ctx->clock_precision_digits)) == NULL
|| !TS_TST_INFO_set_time(tst_info, asn1_time))
goto end;
if ((ctx->seconds || ctx->millis || ctx->micros)
&& (accuracy = TS_ACCURACY_new()) == NULL)
goto end;
if (ctx->seconds && !TS_ACCURACY_set_seconds(accuracy, ctx->seconds))
goto end;
if (ctx->millis && !TS_ACCURACY_set_millis(accuracy, ctx->millis))
goto end;
if (ctx->micros && !TS_ACCURACY_set_micros(accuracy, ctx->micros))
goto end;
if (accuracy && !TS_TST_INFO_set_accuracy(tst_info, accuracy))
goto end;
if ((ctx->flags & TS_ORDERING)
&& !TS_TST_INFO_set_ordering(tst_info, 1))
goto end;
if ((nonce = ctx->request->nonce) != NULL
&& !TS_TST_INFO_set_nonce(tst_info, nonce))
goto end;
if (ctx->flags & TS_TSA_NAME) {
if ((tsa_name = GENERAL_NAME_new()) == NULL)
goto end;
tsa_name->type = GEN_DIRNAME;
tsa_name->d.dirn =
X509_NAME_dup(X509_get_subject_name(ctx->signer_cert));
if (!tsa_name->d.dirn)
goto end;
if (!TS_TST_INFO_set_tsa(tst_info, tsa_name))
goto end;
}
result = 1;
end:
if (!result) {
TS_TST_INFO_free(tst_info);
tst_info = NULL;
ERR_raise(ERR_LIB_TS, TS_R_TST_INFO_SETUP_ERROR);
TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION,
"Error during TSTInfo "
"generation.");
}
GENERAL_NAME_free(tsa_name);
TS_ACCURACY_free(accuracy);
ASN1_GENERALIZEDTIME_free(asn1_time);
ASN1_INTEGER_free(serial);
return tst_info;
}
/* Processing the extensions of the request. */
static int ts_RESP_process_extensions(TS_RESP_CTX *ctx)
{
STACK_OF(X509_EXTENSION) *exts = ctx->request->extensions;
int i;
int ok = 1;
for (i = 0; ok && i < sk_X509_EXTENSION_num(exts); ++i) {
X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
/*
* The last argument was previously (void *)ctx->extension_cb,
* but ISO C doesn't permit converting a function pointer to void *.
* For lack of better information, I'm placing a NULL there instead.
* The callback can pick its own address out from the ctx anyway...
*/
ok = (*ctx->extension_cb) (ctx, ext, NULL);
}
return ok;
}
/* Functions for signing the TS_TST_INFO structure of the context. */
static int ossl_ess_add1_signing_cert(PKCS7_SIGNER_INFO *si,
const ESS_SIGNING_CERT *sc)
{
ASN1_STRING *seq = NULL;
int len = i2d_ESS_SIGNING_CERT(sc, NULL);
unsigned char *p, *pp = OPENSSL_malloc(len);
if (pp == NULL)
return 0;
p = pp;
i2d_ESS_SIGNING_CERT(sc, &p);
if ((seq = ASN1_STRING_new()) == NULL || !ASN1_STRING_set(seq, pp, len)) {
ASN1_STRING_free(seq);
OPENSSL_free(pp);
return 0;
}
OPENSSL_free(pp);
return PKCS7_add_signed_attribute(si, NID_id_smime_aa_signingCertificate,
V_ASN1_SEQUENCE, seq);
}
static int ossl_ess_add1_signing_cert_v2(PKCS7_SIGNER_INFO *si,
const ESS_SIGNING_CERT_V2 *sc)
{
ASN1_STRING *seq = NULL;
int len = i2d_ESS_SIGNING_CERT_V2(sc, NULL);
unsigned char *p, *pp = OPENSSL_malloc(len);
if (pp == NULL)
return 0;
p = pp;
i2d_ESS_SIGNING_CERT_V2(sc, &p);
if ((seq = ASN1_STRING_new()) == NULL || !ASN1_STRING_set(seq, pp, len)) {
ASN1_STRING_free(seq);
OPENSSL_free(pp);
return 0;
}
OPENSSL_free(pp);
return PKCS7_add_signed_attribute(si, NID_id_smime_aa_signingCertificateV2,
V_ASN1_SEQUENCE, seq);
}
static int ts_RESP_sign(TS_RESP_CTX *ctx)
{
int ret = 0;
PKCS7 *p7 = NULL;
PKCS7_SIGNER_INFO *si;
STACK_OF(X509) *certs; /* Certificates to include in sc. */
ESS_SIGNING_CERT_V2 *sc2 = NULL;
ESS_SIGNING_CERT *sc = NULL;
ASN1_OBJECT *oid;
BIO *p7bio = NULL;
int i;
EVP_MD *signer_md = NULL;
if (!X509_check_private_key(ctx->signer_cert, ctx->signer_key)) {
ERR_raise(ERR_LIB_TS, TS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
goto err;
}
if ((p7 = PKCS7_new_ex(ctx->libctx, ctx->propq)) == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_ASN1_LIB);
goto err;
}
if (!PKCS7_set_type(p7, NID_pkcs7_signed))
goto err;
if (!ASN1_INTEGER_set(p7->d.sign->version, 3))
goto err;
if (ctx->request->cert_req) {
PKCS7_add_certificate(p7, ctx->signer_cert);
if (ctx->certs) {
for (i = 0; i < sk_X509_num(ctx->certs); ++i) {
X509 *cert = sk_X509_value(ctx->certs, i);
PKCS7_add_certificate(p7, cert);
}
}
}
if (ctx->signer_md == NULL)
signer_md = EVP_MD_fetch(ctx->libctx, "SHA256", ctx->propq);
else if (EVP_MD_get0_provider(ctx->signer_md) == NULL)
signer_md = EVP_MD_fetch(ctx->libctx, EVP_MD_get0_name(ctx->signer_md),
ctx->propq);
else
signer_md = (EVP_MD *)ctx->signer_md;
if ((si = PKCS7_add_signature(p7, ctx->signer_cert,
ctx->signer_key, signer_md)) == NULL) {
ERR_raise(ERR_LIB_TS, TS_R_PKCS7_ADD_SIGNATURE_ERROR);
goto err;
}
oid = OBJ_nid2obj(NID_id_smime_ct_TSTInfo);
if (!PKCS7_add_signed_attribute(si, NID_pkcs9_contentType,
V_ASN1_OBJECT, oid)) {
ERR_raise(ERR_LIB_TS, TS_R_PKCS7_ADD_SIGNED_ATTR_ERROR);
goto err;
}
certs = ctx->flags & TS_ESS_CERT_ID_CHAIN ? ctx->certs : NULL;
if (ctx->ess_cert_id_digest == NULL
|| EVP_MD_is_a(ctx->ess_cert_id_digest, SN_sha1)) {
if ((sc = OSSL_ESS_signing_cert_new_init(ctx->signer_cert,
certs, 0)) == NULL)
goto err;
if (!ossl_ess_add1_signing_cert(si, sc)) {
ERR_raise(ERR_LIB_TS, TS_R_ESS_ADD_SIGNING_CERT_ERROR);
goto err;
}
} else {
sc2 = OSSL_ESS_signing_cert_v2_new_init(ctx->ess_cert_id_digest,
ctx->signer_cert, certs, 0);
if (sc2 == NULL)
goto err;
if (!ossl_ess_add1_signing_cert_v2(si, sc2)) {
ERR_raise(ERR_LIB_TS, TS_R_ESS_ADD_SIGNING_CERT_V2_ERROR);
goto err;
}
}
if (!ts_TST_INFO_content_new(p7))
goto err;
if ((p7bio = PKCS7_dataInit(p7, NULL)) == NULL) {
ERR_raise(ERR_LIB_TS, ERR_R_PKCS7_LIB);
goto err;
}
if (!i2d_TS_TST_INFO_bio(p7bio, ctx->tst_info)) {
ERR_raise(ERR_LIB_TS, TS_R_TS_DATASIGN);
goto err;
}
if (!PKCS7_dataFinal(p7, p7bio)) {
ERR_raise(ERR_LIB_TS, TS_R_TS_DATASIGN);
goto err;
}
TS_RESP_set_tst_info(ctx->response, p7, ctx->tst_info);
p7 = NULL; /* Ownership is lost. */
ctx->tst_info = NULL; /* Ownership is lost. */
ret = 1;
err:
if (signer_md != ctx->signer_md)
EVP_MD_free(signer_md);
if (!ret)
TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION,
"Error during signature "
"generation.");
BIO_free_all(p7bio);
ESS_SIGNING_CERT_V2_free(sc2);
ESS_SIGNING_CERT_free(sc);
PKCS7_free(p7);
return ret;
}
static int ts_TST_INFO_content_new(PKCS7 *p7)
{
PKCS7 *ret = NULL;
ASN1_OCTET_STRING *octet_string = NULL;
/* Create new encapsulated NID_id_smime_ct_TSTInfo content. */
if ((ret = PKCS7_new()) == NULL)
goto err;
if ((ret->d.other = ASN1_TYPE_new()) == NULL)
goto err;
ret->type = OBJ_nid2obj(NID_id_smime_ct_TSTInfo);
if ((octet_string = ASN1_OCTET_STRING_new()) == NULL)
goto err;
ASN1_TYPE_set(ret->d.other, V_ASN1_OCTET_STRING, octet_string);
octet_string = NULL;
/* Add encapsulated content to signed PKCS7 structure. */
if (!PKCS7_set_content(p7, ret))
goto err;
return 1;
err:
ASN1_OCTET_STRING_free(octet_string);
PKCS7_free(ret);
return 0;
}
static ASN1_GENERALIZEDTIME *TS_RESP_set_genTime_with_precision(
ASN1_GENERALIZEDTIME *asn1_time, long sec, long usec,
unsigned precision)
{
time_t time_sec = (time_t)sec;
struct tm *tm = NULL, tm_result;
char genTime_str[17 + TS_MAX_CLOCK_PRECISION_DIGITS];
char *p = genTime_str;
char *p_end = genTime_str + sizeof(genTime_str);
if (precision > TS_MAX_CLOCK_PRECISION_DIGITS)
goto err;
if ((tm = OPENSSL_gmtime(&time_sec, &tm_result)) == NULL)
goto err;
/*
* Put "genTime_str" in GeneralizedTime format. We work around the
* restrictions imposed by rfc3280 (i.e. "GeneralizedTime values MUST
* NOT include fractional seconds") and OpenSSL related functions to
* meet the rfc3161 requirement: "GeneralizedTime syntax can include
* fraction-of-second details".
*/
p += BIO_snprintf(p, p_end - p,
"%04d%02d%02d%02d%02d%02d",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
if (precision > 0) {
BIO_snprintf(p, 2 + precision, ".%06ld", usec);
p += strlen(p);
/*
* To make things a bit harder, X.690 | ISO/IEC 8825-1 provides the
* following restrictions for a DER-encoding, which OpenSSL
* (specifically ASN1_GENERALIZEDTIME_check() function) doesn't
* support: "The encoding MUST terminate with a "Z" (which means
* "Zulu" time). The decimal point element, if present, MUST be the
* point option ".". The fractional-seconds elements, if present,
* MUST omit all trailing 0's; if the elements correspond to 0, they
* MUST be wholly omitted, and the decimal point element also MUST be
* omitted."
*/
/*
* Remove trailing zeros. The dot guarantees the exit condition of
* this loop even if all the digits are zero.
*/
while (*--p == '0')
continue;
if (*p != '.')
++p;
}
*p++ = 'Z';
*p++ = '\0';
if (asn1_time == NULL
&& (asn1_time = ASN1_GENERALIZEDTIME_new()) == NULL)
goto err;
if (!ASN1_GENERALIZEDTIME_set_string(asn1_time, genTime_str)) {
ASN1_GENERALIZEDTIME_free(asn1_time);
goto err;
}
return asn1_time;
err:
ERR_raise(ERR_LIB_TS, TS_R_COULD_NOT_SET_TIME);
return NULL;
}
int TS_RESP_CTX_set_ess_cert_id_digest(TS_RESP_CTX *ctx, const EVP_MD *md)
{
ctx->ess_cert_id_digest = md;
return 1;
}
|
./openssl/crypto/buffer/buf_err.c | /*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/err.h>
#include <openssl/buffererr.h>
#include "crypto/buffererr.h"
#ifndef OPENSSL_NO_ERR
static const ERR_STRING_DATA BUF_str_reasons[] = {
{0, NULL}
};
#endif
int ossl_err_load_BUF_strings(void)
{
#ifndef OPENSSL_NO_ERR
if (ERR_reason_error_string(BUF_str_reasons[0].error) == NULL)
ERR_load_strings_const(BUF_str_reasons);
#endif
return 1;
}
|
./openssl/crypto/buffer/buffer.c | /*
* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/buffer.h>
/*
* LIMIT_BEFORE_EXPANSION is the maximum n such that (n+3)/3*4 < 2**31. That
* function is applied in several functions in this file and this limit
* ensures that the result fits in an int.
*/
#define LIMIT_BEFORE_EXPANSION 0x5ffffffc
BUF_MEM *BUF_MEM_new_ex(unsigned long flags)
{
BUF_MEM *ret;
ret = BUF_MEM_new();
if (ret != NULL)
ret->flags = flags;
return ret;
}
BUF_MEM *BUF_MEM_new(void)
{
BUF_MEM *ret;
ret = OPENSSL_zalloc(sizeof(*ret));
if (ret == NULL)
return NULL;
return ret;
}
void BUF_MEM_free(BUF_MEM *a)
{
if (a == NULL)
return;
if (a->data != NULL) {
if (a->flags & BUF_MEM_FLAG_SECURE)
OPENSSL_secure_clear_free(a->data, a->max);
else
OPENSSL_clear_free(a->data, a->max);
}
OPENSSL_free(a);
}
/* Allocate a block of secure memory; copy over old data if there
* was any, and then free it. */
static char *sec_alloc_realloc(BUF_MEM *str, size_t len)
{
char *ret;
ret = OPENSSL_secure_malloc(len);
if (str->data != NULL) {
if (ret != NULL) {
memcpy(ret, str->data, str->length);
OPENSSL_secure_clear_free(str->data, str->length);
str->data = NULL;
}
}
return ret;
}
size_t BUF_MEM_grow(BUF_MEM *str, size_t len)
{
char *ret;
size_t n;
if (str->length >= len) {
str->length = len;
return len;
}
if (str->max >= len) {
if (str->data != NULL)
memset(&str->data[str->length], 0, len - str->length);
str->length = len;
return len;
}
/* This limit is sufficient to ensure (len+3)/3*4 < 2**31 */
if (len > LIMIT_BEFORE_EXPANSION) {
ERR_raise(ERR_LIB_BUF, ERR_R_PASSED_INVALID_ARGUMENT);
return 0;
}
n = (len + 3) / 3 * 4;
if ((str->flags & BUF_MEM_FLAG_SECURE))
ret = sec_alloc_realloc(str, n);
else
ret = OPENSSL_realloc(str->data, n);
if (ret == NULL) {
len = 0;
} else {
str->data = ret;
str->max = n;
memset(&str->data[str->length], 0, len - str->length);
str->length = len;
}
return len;
}
size_t BUF_MEM_grow_clean(BUF_MEM *str, size_t len)
{
char *ret;
size_t n;
if (str->length >= len) {
if (str->data != NULL)
memset(&str->data[len], 0, str->length - len);
str->length = len;
return len;
}
if (str->max >= len) {
memset(&str->data[str->length], 0, len - str->length);
str->length = len;
return len;
}
/* This limit is sufficient to ensure (len+3)/3*4 < 2**31 */
if (len > LIMIT_BEFORE_EXPANSION) {
ERR_raise(ERR_LIB_BUF, ERR_R_PASSED_INVALID_ARGUMENT);
return 0;
}
n = (len + 3) / 3 * 4;
if ((str->flags & BUF_MEM_FLAG_SECURE))
ret = sec_alloc_realloc(str, n);
else
ret = OPENSSL_clear_realloc(str->data, str->max, n);
if (ret == NULL) {
len = 0;
} else {
str->data = ret;
str->max = n;
memset(&str->data[str->length], 0, len - str->length);
str->length = len;
}
return len;
}
void BUF_reverse(unsigned char *out, const unsigned char *in, size_t size)
{
size_t i;
if (in) {
out += size - 1;
for (i = 0; i < size; i++)
*out-- = *in++;
} else {
unsigned char *q;
char c;
q = out + size - 1;
for (i = 0; i < size / 2; i++) {
c = *q;
*q-- = *out;
*out++ = c;
}
}
}
|
./openssl/crypto/hmac/hmac.c | /*
* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* HMAC low level APIs are deprecated for public use, but still ok for internal
* use.
*/
#include "internal/deprecated.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "internal/cryptlib.h"
#include <openssl/opensslconf.h>
#include <openssl/hmac.h>
#include <openssl/core_names.h>
#include "hmac_local.h"
int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,
const EVP_MD *md, ENGINE *impl)
{
int rv = 0, reset = 0;
int i, j;
unsigned char pad[HMAC_MAX_MD_CBLOCK_SIZE];
unsigned int keytmp_length;
unsigned char keytmp[HMAC_MAX_MD_CBLOCK_SIZE];
/* If we are changing MD then we must have a key */
if (md != NULL && md != ctx->md && (key == NULL || len < 0))
return 0;
if (md != NULL)
ctx->md = md;
else if (ctx->md != NULL)
md = ctx->md;
else
return 0;
/*
* The HMAC construction is not allowed to be used with the
* extendable-output functions (XOF) shake128 and shake256.
*/
if ((EVP_MD_get_flags(md) & EVP_MD_FLAG_XOF) != 0)
return 0;
if (key != NULL) {
reset = 1;
j = EVP_MD_get_block_size(md);
if (!ossl_assert(j <= (int)sizeof(keytmp)))
return 0;
if (j < 0)
return 0;
if (j < len) {
if (!EVP_DigestInit_ex(ctx->md_ctx, md, impl)
|| !EVP_DigestUpdate(ctx->md_ctx, key, len)
|| !EVP_DigestFinal_ex(ctx->md_ctx, keytmp,
&keytmp_length))
return 0;
} else {
if (len < 0 || len > (int)sizeof(keytmp))
return 0;
memcpy(keytmp, key, len);
keytmp_length = len;
}
if (keytmp_length != HMAC_MAX_MD_CBLOCK_SIZE)
memset(&keytmp[keytmp_length], 0,
HMAC_MAX_MD_CBLOCK_SIZE - keytmp_length);
for (i = 0; i < HMAC_MAX_MD_CBLOCK_SIZE; i++)
pad[i] = 0x36 ^ keytmp[i];
if (!EVP_DigestInit_ex(ctx->i_ctx, md, impl)
|| !EVP_DigestUpdate(ctx->i_ctx, pad,
EVP_MD_get_block_size(md)))
goto err;
for (i = 0; i < HMAC_MAX_MD_CBLOCK_SIZE; i++)
pad[i] = 0x5c ^ keytmp[i];
if (!EVP_DigestInit_ex(ctx->o_ctx, md, impl)
|| !EVP_DigestUpdate(ctx->o_ctx, pad,
EVP_MD_get_block_size(md)))
goto err;
}
if (!EVP_MD_CTX_copy_ex(ctx->md_ctx, ctx->i_ctx))
goto err;
rv = 1;
err:
if (reset) {
OPENSSL_cleanse(keytmp, sizeof(keytmp));
OPENSSL_cleanse(pad, sizeof(pad));
}
return rv;
}
#ifndef OPENSSL_NO_DEPRECATED_1_1_0
int HMAC_Init(HMAC_CTX *ctx, const void *key, int len, const EVP_MD *md)
{
if (key && md)
HMAC_CTX_reset(ctx);
return HMAC_Init_ex(ctx, key, len, md, NULL);
}
#endif
int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len)
{
if (!ctx->md)
return 0;
return EVP_DigestUpdate(ctx->md_ctx, data, len);
}
int HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len)
{
unsigned int i;
unsigned char buf[EVP_MAX_MD_SIZE];
if (!ctx->md)
goto err;
if (!EVP_DigestFinal_ex(ctx->md_ctx, buf, &i))
goto err;
if (!EVP_MD_CTX_copy_ex(ctx->md_ctx, ctx->o_ctx))
goto err;
if (!EVP_DigestUpdate(ctx->md_ctx, buf, i))
goto err;
if (!EVP_DigestFinal_ex(ctx->md_ctx, md, len))
goto err;
return 1;
err:
return 0;
}
size_t HMAC_size(const HMAC_CTX *ctx)
{
int size = EVP_MD_get_size((ctx)->md);
return (size < 0) ? 0 : size;
}
HMAC_CTX *HMAC_CTX_new(void)
{
HMAC_CTX *ctx = OPENSSL_zalloc(sizeof(HMAC_CTX));
if (ctx != NULL) {
if (!HMAC_CTX_reset(ctx)) {
HMAC_CTX_free(ctx);
return NULL;
}
}
return ctx;
}
static void hmac_ctx_cleanup(HMAC_CTX *ctx)
{
EVP_MD_CTX_reset(ctx->i_ctx);
EVP_MD_CTX_reset(ctx->o_ctx);
EVP_MD_CTX_reset(ctx->md_ctx);
ctx->md = NULL;
}
void HMAC_CTX_free(HMAC_CTX *ctx)
{
if (ctx != NULL) {
hmac_ctx_cleanup(ctx);
EVP_MD_CTX_free(ctx->i_ctx);
EVP_MD_CTX_free(ctx->o_ctx);
EVP_MD_CTX_free(ctx->md_ctx);
OPENSSL_free(ctx);
}
}
static int hmac_ctx_alloc_mds(HMAC_CTX *ctx)
{
if (ctx->i_ctx == NULL)
ctx->i_ctx = EVP_MD_CTX_new();
if (ctx->i_ctx == NULL)
return 0;
if (ctx->o_ctx == NULL)
ctx->o_ctx = EVP_MD_CTX_new();
if (ctx->o_ctx == NULL)
return 0;
if (ctx->md_ctx == NULL)
ctx->md_ctx = EVP_MD_CTX_new();
if (ctx->md_ctx == NULL)
return 0;
return 1;
}
int HMAC_CTX_reset(HMAC_CTX *ctx)
{
hmac_ctx_cleanup(ctx);
if (!hmac_ctx_alloc_mds(ctx)) {
hmac_ctx_cleanup(ctx);
return 0;
}
return 1;
}
int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx)
{
if (!hmac_ctx_alloc_mds(dctx))
goto err;
if (!EVP_MD_CTX_copy_ex(dctx->i_ctx, sctx->i_ctx))
goto err;
if (!EVP_MD_CTX_copy_ex(dctx->o_ctx, sctx->o_ctx))
goto err;
if (!EVP_MD_CTX_copy_ex(dctx->md_ctx, sctx->md_ctx))
goto err;
dctx->md = sctx->md;
return 1;
err:
hmac_ctx_cleanup(dctx);
return 0;
}
unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
const unsigned char *data, size_t data_len,
unsigned char *md, unsigned int *md_len)
{
static unsigned char static_md[EVP_MAX_MD_SIZE];
int size = EVP_MD_get_size(evp_md);
size_t temp_md_len = 0;
unsigned char *ret = NULL;
if (size >= 0) {
ret = EVP_Q_mac(NULL, "HMAC", NULL, EVP_MD_get0_name(evp_md), NULL,
key, key_len, data, data_len,
md == NULL ? static_md : md, size, &temp_md_len);
if (md_len != NULL)
*md_len = (unsigned int)temp_md_len;
}
return ret;
}
void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags)
{
EVP_MD_CTX_set_flags(ctx->i_ctx, flags);
EVP_MD_CTX_set_flags(ctx->o_ctx, flags);
EVP_MD_CTX_set_flags(ctx->md_ctx, flags);
}
const EVP_MD *HMAC_CTX_get_md(const HMAC_CTX *ctx)
{
return ctx->md;
}
|
./openssl/crypto/hmac/hmac_local.h | /*
* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef OSSL_CRYPTO_HMAC_LOCAL_H
# define OSSL_CRYPTO_HMAC_LOCAL_H
/* The current largest case is for SHA3-224 */
#define HMAC_MAX_MD_CBLOCK_SIZE 144
struct hmac_ctx_st {
const EVP_MD *md;
EVP_MD_CTX *md_ctx;
EVP_MD_CTX *i_ctx;
EVP_MD_CTX *o_ctx;
};
#endif
|
./openssl/engines/e_dasync_err.c | /*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/err.h>
#include "e_dasync_err.h"
#ifndef OPENSSL_NO_ERR
static ERR_STRING_DATA DASYNC_str_reasons[] = {
{ERR_PACK(0, 0, DASYNC_R_INIT_FAILED), "init failed"},
{0, NULL}
};
#endif
static int lib_code = 0;
static int error_loaded = 0;
static int ERR_load_DASYNC_strings(void)
{
if (lib_code == 0)
lib_code = ERR_get_next_error_library();
if (!error_loaded) {
#ifndef OPENSSL_NO_ERR
ERR_load_strings(lib_code, DASYNC_str_reasons);
#endif
error_loaded = 1;
}
return 1;
}
static void ERR_unload_DASYNC_strings(void)
{
if (error_loaded) {
#ifndef OPENSSL_NO_ERR
ERR_unload_strings(lib_code, DASYNC_str_reasons);
#endif
error_loaded = 0;
}
}
static void ERR_DASYNC_error(int function, int reason, const char *file, int line)
{
if (lib_code == 0)
lib_code = ERR_get_next_error_library();
ERR_raise(lib_code, reason);
ERR_set_debug(file, line, NULL);
}
|
./openssl/engines/e_afalg_err.c | /*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/err.h>
#include "e_afalg_err.h"
#ifndef OPENSSL_NO_ERR
static ERR_STRING_DATA AFALG_str_reasons[] = {
{ERR_PACK(0, 0, AFALG_R_EVENTFD_FAILED), "eventfd failed"},
{ERR_PACK(0, 0, AFALG_R_FAILED_TO_GET_PLATFORM_INFO),
"failed to get platform info"},
{ERR_PACK(0, 0, AFALG_R_INIT_FAILED), "init failed"},
{ERR_PACK(0, 0, AFALG_R_IO_SETUP_FAILED), "io setup failed"},
{ERR_PACK(0, 0, AFALG_R_KERNEL_DOES_NOT_SUPPORT_AFALG),
"kernel does not support afalg"},
{ERR_PACK(0, 0, AFALG_R_KERNEL_DOES_NOT_SUPPORT_ASYNC_AFALG),
"kernel does not support async afalg"},
{ERR_PACK(0, 0, AFALG_R_KERNEL_OP_FAILED), "kernel op failed"},
{ERR_PACK(0, 0, AFALG_R_MEM_ALLOC_FAILED), "mem alloc failed"},
{ERR_PACK(0, 0, AFALG_R_SOCKET_ACCEPT_FAILED), "socket accept failed"},
{ERR_PACK(0, 0, AFALG_R_SOCKET_BIND_FAILED), "socket bind failed"},
{ERR_PACK(0, 0, AFALG_R_SOCKET_CREATE_FAILED), "socket create failed"},
{ERR_PACK(0, 0, AFALG_R_SOCKET_OPERATION_FAILED),
"socket operation failed"},
{ERR_PACK(0, 0, AFALG_R_SOCKET_SET_KEY_FAILED), "socket set key failed"},
{0, NULL}
};
#endif
static int lib_code = 0;
static int error_loaded = 0;
static int ERR_load_AFALG_strings(void)
{
if (lib_code == 0)
lib_code = ERR_get_next_error_library();
if (!error_loaded) {
#ifndef OPENSSL_NO_ERR
ERR_load_strings(lib_code, AFALG_str_reasons);
#endif
error_loaded = 1;
}
return 1;
}
static void ERR_unload_AFALG_strings(void)
{
if (error_loaded) {
#ifndef OPENSSL_NO_ERR
ERR_unload_strings(lib_code, AFALG_str_reasons);
#endif
error_loaded = 0;
}
}
static void ERR_AFALG_error(int function, int reason, const char *file, int line)
{
if (lib_code == 0)
lib_code = ERR_get_next_error_library();
ERR_raise(lib_code, reason);
ERR_set_debug(file, line, NULL);
}
|
./openssl/engines/e_loader_attic_err.h | /*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef OSSL_E_LOADER_ATTIC_ERR_H
# define OSSL_E_LOADER_ATTIC_ERR_H
# pragma once
# include <openssl/opensslconf.h>
# include <openssl/symhacks.h>
# define ATTICerr(f, r) ERR_ATTIC_error(0, (r), OPENSSL_FILE, OPENSSL_LINE)
/*
* ATTIC reason codes.
*/
# define ATTIC_R_AMBIGUOUS_CONTENT_TYPE 100
# define ATTIC_R_BAD_PASSWORD_READ 101
# define ATTIC_R_ERROR_VERIFYING_PKCS12_MAC 102
# define ATTIC_R_INIT_FAILED 103
# define ATTIC_R_PASSPHRASE_CALLBACK_ERROR 104
# define ATTIC_R_PATH_MUST_BE_ABSOLUTE 105
# define ATTIC_R_SEARCH_ONLY_SUPPORTED_FOR_DIRECTORIES 106
# define ATTIC_R_UI_PROCESS_INTERRUPTED_OR_CANCELLED 107
# define ATTIC_R_UNSUPPORTED_CONTENT_TYPE 108
# define ATTIC_R_UNSUPPORTED_SEARCH_TYPE 109
# define ATTIC_R_URI_AUTHORITY_UNSUPPORTED 110
#endif
|
./openssl/engines/e_afalg.c | /*
* Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/* We need to use some deprecated APIs */
#define OPENSSL_SUPPRESS_DEPRECATED
/* Required for vmsplice */
#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <openssl/engine.h>
#include <openssl/async.h>
#include <openssl/err.h>
#include "internal/nelem.h"
#include <sys/socket.h>
#include <linux/version.h>
#define K_MAJ 4
#define K_MIN1 1
#define K_MIN2 0
#if LINUX_VERSION_CODE < KERNEL_VERSION(K_MAJ, K_MIN1, K_MIN2) || \
!defined(AF_ALG)
# ifndef PEDANTIC
# warning "AFALG ENGINE requires Kernel Headers >= 4.1.0"
# warning "Skipping Compilation of AFALG engine"
# endif
void engine_load_afalg_int(void);
void engine_load_afalg_int(void)
{
}
#else
# include <linux/if_alg.h>
# include <fcntl.h>
# include <sys/utsname.h>
# include <linux/aio_abi.h>
# include <sys/syscall.h>
# include <errno.h>
# include "e_afalg.h"
# include "e_afalg_err.c"
# ifndef SOL_ALG
# define SOL_ALG 279
# endif
# ifdef ALG_ZERO_COPY
# ifndef SPLICE_F_GIFT
# define SPLICE_F_GIFT (0x08)
# endif
# endif
# define ALG_AES_IV_LEN 16
# define ALG_IV_LEN(len) (sizeof(struct af_alg_iv) + (len))
# define ALG_OP_TYPE unsigned int
# define ALG_OP_LEN (sizeof(ALG_OP_TYPE))
# ifdef OPENSSL_NO_DYNAMIC_ENGINE
void engine_load_afalg_int(void);
# endif
/* Local Linkage Functions */
static int afalg_init_aio(afalg_aio *aio);
static int afalg_fin_cipher_aio(afalg_aio *ptr, int sfd,
unsigned char *buf, size_t len);
static int afalg_create_sk(afalg_ctx *actx, const char *ciphertype,
const char *ciphername);
static int afalg_destroy(ENGINE *e);
static int afalg_init(ENGINE *e);
static int afalg_finish(ENGINE *e);
static const EVP_CIPHER *afalg_aes_cbc(int nid);
static cbc_handles *get_cipher_handle(int nid);
static int afalg_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
const int **nids, int nid);
static int afalg_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc);
static int afalg_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
static int afalg_cipher_cleanup(EVP_CIPHER_CTX *ctx);
static int afalg_chk_platform(void);
/* Engine Id and Name */
static const char *engine_afalg_id = "afalg";
static const char *engine_afalg_name = "AFALG engine support";
static int afalg_cipher_nids[] = {
NID_aes_128_cbc,
NID_aes_192_cbc,
NID_aes_256_cbc,
};
static cbc_handles cbc_handle[] = {{AES_KEY_SIZE_128, NULL},
{AES_KEY_SIZE_192, NULL},
{AES_KEY_SIZE_256, NULL}};
static ossl_inline int io_setup(unsigned n, aio_context_t *ctx)
{
return syscall(__NR_io_setup, n, ctx);
}
static ossl_inline int eventfd(int n)
{
return syscall(__NR_eventfd2, n, 0);
}
static ossl_inline int io_destroy(aio_context_t ctx)
{
return syscall(__NR_io_destroy, ctx);
}
static ossl_inline int io_read(aio_context_t ctx, long n, struct iocb **iocb)
{
return syscall(__NR_io_submit, ctx, n, iocb);
}
/* A version of 'struct timespec' with 32-bit time_t and nanoseconds. */
struct __timespec32
{
__kernel_long_t tv_sec;
__kernel_long_t tv_nsec;
};
static ossl_inline int io_getevents(aio_context_t ctx, long min, long max,
struct io_event *events,
struct timespec *timeout)
{
#if defined(__NR_io_pgetevents_time64)
/* Check if we are a 32-bit architecture with a 64-bit time_t */
if (sizeof(*timeout) != sizeof(struct __timespec32)) {
int ret = syscall(__NR_io_pgetevents_time64, ctx, min, max, events,
timeout, NULL);
if (ret == 0 || errno != ENOSYS)
return ret;
}
#endif
#if defined(__NR_io_getevents)
if (sizeof(*timeout) == sizeof(struct __timespec32))
/*
* time_t matches our architecture length, we can just use
* __NR_io_getevents
*/
return syscall(__NR_io_getevents, ctx, min, max, events, timeout);
else {
/*
* We don't have __NR_io_pgetevents_time64, but we are using a
* 64-bit time_t on a 32-bit architecture. If we can fit the
* timeout value in a 32-bit time_t, then let's do that
* and then use the __NR_io_getevents syscall.
*/
if (timeout && timeout->tv_sec == (long)timeout->tv_sec) {
struct __timespec32 ts32;
ts32.tv_sec = (__kernel_long_t) timeout->tv_sec;
ts32.tv_nsec = (__kernel_long_t) timeout->tv_nsec;
return syscall(__NR_io_getevents, ctx, min, max, events, ts32);
} else {
return syscall(__NR_io_getevents, ctx, min, max, events, NULL);
}
}
#endif
errno = ENOSYS;
return -1;
}
static void afalg_waitfd_cleanup(ASYNC_WAIT_CTX *ctx, const void *key,
OSSL_ASYNC_FD waitfd, void *custom)
{
close(waitfd);
}
static int afalg_setup_async_event_notification(afalg_aio *aio)
{
ASYNC_JOB *job;
ASYNC_WAIT_CTX *waitctx;
void *custom = NULL;
int ret;
if ((job = ASYNC_get_current_job()) != NULL) {
/* Async mode */
waitctx = ASYNC_get_wait_ctx(job);
if (waitctx == NULL) {
ALG_WARN("%s(%d): ASYNC_get_wait_ctx error", __FILE__, __LINE__);
return 0;
}
/* Get waitfd from ASYNC_WAIT_CTX if it is already set */
ret = ASYNC_WAIT_CTX_get_fd(waitctx, engine_afalg_id,
&aio->efd, &custom);
if (ret == 0) {
/*
* waitfd is not set in ASYNC_WAIT_CTX, create a new one
* and set it. efd will be signaled when AIO operation completes
*/
aio->efd = eventfd(0);
if (aio->efd == -1) {
ALG_PERR("%s(%d): Failed to get eventfd : ", __FILE__,
__LINE__);
AFALGerr(AFALG_F_AFALG_SETUP_ASYNC_EVENT_NOTIFICATION,
AFALG_R_EVENTFD_FAILED);
return 0;
}
ret = ASYNC_WAIT_CTX_set_wait_fd(waitctx, engine_afalg_id,
aio->efd, custom,
afalg_waitfd_cleanup);
if (ret == 0) {
ALG_WARN("%s(%d): Failed to set wait fd", __FILE__, __LINE__);
close(aio->efd);
return 0;
}
/* make fd non-blocking in async mode */
if (fcntl(aio->efd, F_SETFL, O_NONBLOCK) != 0) {
ALG_WARN("%s(%d): Failed to set event fd as NONBLOCKING",
__FILE__, __LINE__);
}
}
aio->mode = MODE_ASYNC;
} else {
/* Sync mode */
aio->efd = eventfd(0);
if (aio->efd == -1) {
ALG_PERR("%s(%d): Failed to get eventfd : ", __FILE__, __LINE__);
AFALGerr(AFALG_F_AFALG_SETUP_ASYNC_EVENT_NOTIFICATION,
AFALG_R_EVENTFD_FAILED);
return 0;
}
aio->mode = MODE_SYNC;
}
return 1;
}
static int afalg_init_aio(afalg_aio *aio)
{
int r = -1;
/* Initialise for AIO */
aio->aio_ctx = 0;
r = io_setup(MAX_INFLIGHTS, &aio->aio_ctx);
if (r < 0) {
ALG_PERR("%s(%d): io_setup error : ", __FILE__, __LINE__);
AFALGerr(AFALG_F_AFALG_INIT_AIO, AFALG_R_IO_SETUP_FAILED);
return 0;
}
memset(aio->cbt, 0, sizeof(aio->cbt));
aio->efd = -1;
aio->mode = MODE_UNINIT;
return 1;
}
static int afalg_fin_cipher_aio(afalg_aio *aio, int sfd, unsigned char *buf,
size_t len)
{
int r;
int retry = 0;
unsigned int done = 0;
struct iocb *cb;
struct timespec timeout;
struct io_event events[MAX_INFLIGHTS];
u_int64_t eval = 0;
timeout.tv_sec = 0;
timeout.tv_nsec = 0;
/* if efd has not been initialised yet do it here */
if (aio->mode == MODE_UNINIT) {
r = afalg_setup_async_event_notification(aio);
if (r == 0)
return 0;
}
cb = &(aio->cbt[0 % MAX_INFLIGHTS]);
memset(cb, '\0', sizeof(*cb));
cb->aio_fildes = sfd;
cb->aio_lio_opcode = IOCB_CMD_PREAD;
/*
* The pointer has to be converted to unsigned value first to avoid
* sign extension on cast to 64 bit value in 32-bit builds
*/
cb->aio_buf = (size_t)buf;
cb->aio_offset = 0;
cb->aio_data = 0;
cb->aio_nbytes = len;
cb->aio_flags = IOCB_FLAG_RESFD;
cb->aio_resfd = aio->efd;
/*
* Perform AIO read on AFALG socket, this in turn performs an async
* crypto operation in kernel space
*/
r = io_read(aio->aio_ctx, 1, &cb);
if (r < 0) {
ALG_PWARN("%s(%d): io_read failed : ", __FILE__, __LINE__);
return 0;
}
do {
/* While AIO read is being performed pause job */
ASYNC_pause_job();
/* Check for completion of AIO read */
r = read(aio->efd, &eval, sizeof(eval));
if (r < 0) {
if (errno == EAGAIN || errno == EWOULDBLOCK)
continue;
ALG_PERR("%s(%d): read failed for event fd : ", __FILE__, __LINE__);
return 0;
} else if (r == 0 || eval <= 0) {
ALG_WARN("%s(%d): eventfd read %d bytes, eval = %lu\n", __FILE__,
__LINE__, r, eval);
}
if (eval > 0) {
#ifdef OSSL_SANITIZE_MEMORY
/*
* In a memory sanitiser build, the changes to memory made by the
* system call aren't reliably detected. By initialising the
* memory here, the sanitiser is told that they are okay.
*/
memset(events, 0, sizeof(events));
#endif
/* Get results of AIO read */
r = io_getevents(aio->aio_ctx, 1, MAX_INFLIGHTS,
events, &timeout);
if (r > 0) {
/*
* events.res indicates the actual status of the operation.
* Handle the error condition first.
*/
if (events[0].res < 0) {
/*
* Underlying operation cannot be completed at the time
* of previous submission. Resubmit for the operation.
*/
if (events[0].res == -EBUSY && retry++ < 3) {
r = io_read(aio->aio_ctx, 1, &cb);
if (r < 0) {
ALG_PERR("%s(%d): retry %d for io_read failed : ",
__FILE__, __LINE__, retry);
return 0;
}
continue;
} else {
char strbuf[32];
/*
* sometimes __s64 is defined as long long int
* but on some archs ( like mips64 or powerpc64 ) it's just long int
*
* to be able to use BIO_snprintf() with %lld without warnings
* copy events[0].res to an long long int variable
*
* because long long int should always be at least 64 bit this should work
*/
long long int op_ret = events[0].res;
/*
* Retries exceed for -EBUSY or unrecoverable error
* condition for this instance of operation.
*/
ALG_WARN
("%s(%d): Crypto Operation failed with code %lld\n",
__FILE__, __LINE__, events[0].res);
BIO_snprintf(strbuf, sizeof(strbuf), "%lld", op_ret);
switch (events[0].res) {
case -ENOMEM:
AFALGerr(0, AFALG_R_KERNEL_OP_FAILED);
ERR_add_error_data(3, "-ENOMEM ( code ", strbuf, " )");
break;
default:
AFALGerr(0, AFALG_R_KERNEL_OP_FAILED);
ERR_add_error_data(2, "code ", strbuf);
break;
}
return 0;
}
}
/* Operation successful. */
done = 1;
} else if (r < 0) {
ALG_PERR("%s(%d): io_getevents failed : ", __FILE__, __LINE__);
return 0;
} else {
ALG_WARN("%s(%d): io_geteventd read 0 bytes\n", __FILE__,
__LINE__);
}
}
} while (!done);
return 1;
}
static ossl_inline void afalg_set_op_sk(struct cmsghdr *cmsg,
const ALG_OP_TYPE op)
{
cmsg->cmsg_level = SOL_ALG;
cmsg->cmsg_type = ALG_SET_OP;
cmsg->cmsg_len = CMSG_LEN(ALG_OP_LEN);
memcpy(CMSG_DATA(cmsg), &op, ALG_OP_LEN);
}
static void afalg_set_iv_sk(struct cmsghdr *cmsg, const unsigned char *iv,
const unsigned int len)
{
struct af_alg_iv *aiv;
cmsg->cmsg_level = SOL_ALG;
cmsg->cmsg_type = ALG_SET_IV;
cmsg->cmsg_len = CMSG_LEN(ALG_IV_LEN(len));
aiv = (struct af_alg_iv *)CMSG_DATA(cmsg);
aiv->ivlen = len;
memcpy(aiv->iv, iv, len);
}
static ossl_inline int afalg_set_key(afalg_ctx *actx, const unsigned char *key,
const int klen)
{
int ret;
ret = setsockopt(actx->bfd, SOL_ALG, ALG_SET_KEY, key, klen);
if (ret < 0) {
ALG_PERR("%s(%d): Failed to set socket option : ", __FILE__, __LINE__);
AFALGerr(AFALG_F_AFALG_SET_KEY, AFALG_R_SOCKET_SET_KEY_FAILED);
return 0;
}
return 1;
}
static int afalg_create_sk(afalg_ctx *actx, const char *ciphertype,
const char *ciphername)
{
struct sockaddr_alg sa;
int r = -1;
actx->bfd = actx->sfd = -1;
memset(&sa, 0, sizeof(sa));
sa.salg_family = AF_ALG;
OPENSSL_strlcpy((char *) sa.salg_type, ciphertype, sizeof(sa.salg_type));
OPENSSL_strlcpy((char *) sa.salg_name, ciphername, sizeof(sa.salg_name));
actx->bfd = socket(AF_ALG, SOCK_SEQPACKET, 0);
if (actx->bfd == -1) {
ALG_PERR("%s(%d): Failed to open socket : ", __FILE__, __LINE__);
AFALGerr(AFALG_F_AFALG_CREATE_SK, AFALG_R_SOCKET_CREATE_FAILED);
goto err;
}
r = bind(actx->bfd, (struct sockaddr *)&sa, sizeof(sa));
if (r < 0) {
ALG_PERR("%s(%d): Failed to bind socket : ", __FILE__, __LINE__);
AFALGerr(AFALG_F_AFALG_CREATE_SK, AFALG_R_SOCKET_BIND_FAILED);
goto err;
}
actx->sfd = accept(actx->bfd, NULL, 0);
if (actx->sfd < 0) {
ALG_PERR("%s(%d): Socket Accept Failed : ", __FILE__, __LINE__);
AFALGerr(AFALG_F_AFALG_CREATE_SK, AFALG_R_SOCKET_ACCEPT_FAILED);
goto err;
}
return 1;
err:
if (actx->bfd >= 0)
close(actx->bfd);
if (actx->sfd >= 0)
close(actx->sfd);
actx->bfd = actx->sfd = -1;
return 0;
}
static int afalg_start_cipher_sk(afalg_ctx *actx, const unsigned char *in,
size_t inl, const unsigned char *iv,
unsigned int enc)
{
struct msghdr msg;
struct cmsghdr *cmsg;
struct iovec iov;
ssize_t sbytes;
# ifdef ALG_ZERO_COPY
int ret;
# endif
char cbuf[CMSG_SPACE(ALG_IV_LEN(ALG_AES_IV_LEN)) + CMSG_SPACE(ALG_OP_LEN)];
memset(&msg, 0, sizeof(msg));
memset(cbuf, 0, sizeof(cbuf));
msg.msg_control = cbuf;
msg.msg_controllen = sizeof(cbuf);
/*
* cipher direction (i.e. encrypt or decrypt) and iv are sent to the
* kernel as part of sendmsg()'s ancillary data
*/
cmsg = CMSG_FIRSTHDR(&msg);
afalg_set_op_sk(cmsg, enc);
cmsg = CMSG_NXTHDR(&msg, cmsg);
afalg_set_iv_sk(cmsg, iv, ALG_AES_IV_LEN);
/* iov that describes input data */
iov.iov_base = (unsigned char *)in;
iov.iov_len = inl;
msg.msg_flags = MSG_MORE;
# ifdef ALG_ZERO_COPY
/*
* ZERO_COPY mode
* Works best when buffer is 4k aligned
* OPENS: out of place processing (i.e. out != in)
*/
/* Input data is not sent as part of call to sendmsg() */
msg.msg_iovlen = 0;
msg.msg_iov = NULL;
/* Sendmsg() sends iv and cipher direction to the kernel */
sbytes = sendmsg(actx->sfd, &msg, 0);
if (sbytes < 0) {
ALG_PERR("%s(%d): sendmsg failed for zero copy cipher operation : ",
__FILE__, __LINE__);
return 0;
}
/*
* vmsplice and splice are used to pin the user space input buffer for
* kernel space processing avoiding copies from user to kernel space
*/
ret = vmsplice(actx->zc_pipe[1], &iov, 1, SPLICE_F_GIFT);
if (ret < 0) {
ALG_PERR("%s(%d): vmsplice failed : ", __FILE__, __LINE__);
return 0;
}
ret = splice(actx->zc_pipe[0], NULL, actx->sfd, NULL, inl, 0);
if (ret < 0) {
ALG_PERR("%s(%d): splice failed : ", __FILE__, __LINE__);
return 0;
}
# else
msg.msg_iovlen = 1;
msg.msg_iov = &iov;
/* Sendmsg() sends iv, cipher direction and input data to the kernel */
sbytes = sendmsg(actx->sfd, &msg, 0);
if (sbytes < 0) {
ALG_PERR("%s(%d): sendmsg failed for cipher operation : ", __FILE__,
__LINE__);
return 0;
}
if (sbytes != (ssize_t) inl) {
ALG_WARN("Cipher operation send bytes %zd != inlen %zd\n", sbytes,
inl);
return 0;
}
# endif
return 1;
}
static int afalg_cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
int ciphertype;
int ret, len;
afalg_ctx *actx;
const char *ciphername;
if (ctx == NULL || key == NULL) {
ALG_WARN("%s(%d): Null Parameter\n", __FILE__, __LINE__);
return 0;
}
if (EVP_CIPHER_CTX_get0_cipher(ctx) == NULL) {
ALG_WARN("%s(%d): Cipher object NULL\n", __FILE__, __LINE__);
return 0;
}
actx = EVP_CIPHER_CTX_get_cipher_data(ctx);
if (actx == NULL) {
ALG_WARN("%s(%d): Cipher data NULL\n", __FILE__, __LINE__);
return 0;
}
ciphertype = EVP_CIPHER_CTX_get_nid(ctx);
switch (ciphertype) {
case NID_aes_128_cbc:
case NID_aes_192_cbc:
case NID_aes_256_cbc:
ciphername = "cbc(aes)";
break;
default:
ALG_WARN("%s(%d): Unsupported Cipher type %d\n", __FILE__, __LINE__,
ciphertype);
return 0;
}
if (ALG_AES_IV_LEN != EVP_CIPHER_CTX_get_iv_length(ctx)) {
ALG_WARN("%s(%d): Unsupported IV length :%d\n", __FILE__, __LINE__,
EVP_CIPHER_CTX_get_iv_length(ctx));
return 0;
}
/* Setup AFALG socket for crypto processing */
ret = afalg_create_sk(actx, "skcipher", ciphername);
if (ret < 1)
return 0;
if ((len = EVP_CIPHER_CTX_get_key_length(ctx)) <= 0)
goto err;
ret = afalg_set_key(actx, key, len);
if (ret < 1)
goto err;
/* Setup AIO ctx to allow async AFALG crypto processing */
if (afalg_init_aio(&actx->aio) == 0)
goto err;
# ifdef ALG_ZERO_COPY
pipe(actx->zc_pipe);
# endif
actx->init_done = MAGIC_INIT_NUM;
return 1;
err:
close(actx->sfd);
close(actx->bfd);
return 0;
}
static int afalg_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
afalg_ctx *actx;
int ret;
char nxtiv[ALG_AES_IV_LEN] = { 0 };
if (ctx == NULL || out == NULL || in == NULL) {
ALG_WARN("NULL parameter passed to function %s(%d)\n", __FILE__,
__LINE__);
return 0;
}
actx = (afalg_ctx *) EVP_CIPHER_CTX_get_cipher_data(ctx);
if (actx == NULL || actx->init_done != MAGIC_INIT_NUM) {
ALG_WARN("%s afalg ctx passed\n",
ctx == NULL ? "NULL" : "Uninitialised");
return 0;
}
/*
* set iv now for decrypt operation as the input buffer can be
* overwritten for inplace operation where in = out.
*/
if (EVP_CIPHER_CTX_is_encrypting(ctx) == 0) {
memcpy(nxtiv, in + (inl - ALG_AES_IV_LEN), ALG_AES_IV_LEN);
}
/* Send input data to kernel space */
ret = afalg_start_cipher_sk(actx, (unsigned char *)in, inl,
EVP_CIPHER_CTX_iv(ctx),
EVP_CIPHER_CTX_is_encrypting(ctx));
if (ret < 1) {
return 0;
}
/* Perform async crypto operation in kernel space */
ret = afalg_fin_cipher_aio(&actx->aio, actx->sfd, out, inl);
if (ret < 1)
return 0;
if (EVP_CIPHER_CTX_is_encrypting(ctx)) {
memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), out + (inl - ALG_AES_IV_LEN),
ALG_AES_IV_LEN);
} else {
memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), nxtiv, ALG_AES_IV_LEN);
}
return 1;
}
static int afalg_cipher_cleanup(EVP_CIPHER_CTX *ctx)
{
afalg_ctx *actx;
if (ctx == NULL) {
ALG_WARN("NULL parameter passed to function %s(%d)\n", __FILE__,
__LINE__);
return 0;
}
actx = (afalg_ctx *) EVP_CIPHER_CTX_get_cipher_data(ctx);
if (actx == NULL || actx->init_done != MAGIC_INIT_NUM)
return 1;
close(actx->sfd);
close(actx->bfd);
# ifdef ALG_ZERO_COPY
close(actx->zc_pipe[0]);
close(actx->zc_pipe[1]);
# endif
/* close efd in sync mode, async mode is closed in afalg_waitfd_cleanup() */
if (actx->aio.mode == MODE_SYNC)
close(actx->aio.efd);
io_destroy(actx->aio.aio_ctx);
return 1;
}
static cbc_handles *get_cipher_handle(int nid)
{
switch (nid) {
case NID_aes_128_cbc:
return &cbc_handle[AES_CBC_128];
case NID_aes_192_cbc:
return &cbc_handle[AES_CBC_192];
case NID_aes_256_cbc:
return &cbc_handle[AES_CBC_256];
default:
return NULL;
}
}
static const EVP_CIPHER *afalg_aes_cbc(int nid)
{
cbc_handles *cipher_handle = get_cipher_handle(nid);
if (cipher_handle == NULL)
return NULL;
if (cipher_handle->_hidden == NULL
&& ((cipher_handle->_hidden =
EVP_CIPHER_meth_new(nid,
AES_BLOCK_SIZE,
cipher_handle->key_size)) == NULL
|| !EVP_CIPHER_meth_set_iv_length(cipher_handle->_hidden,
AES_IV_LEN)
|| !EVP_CIPHER_meth_set_flags(cipher_handle->_hidden,
EVP_CIPH_CBC_MODE |
EVP_CIPH_FLAG_DEFAULT_ASN1)
|| !EVP_CIPHER_meth_set_init(cipher_handle->_hidden,
afalg_cipher_init)
|| !EVP_CIPHER_meth_set_do_cipher(cipher_handle->_hidden,
afalg_do_cipher)
|| !EVP_CIPHER_meth_set_cleanup(cipher_handle->_hidden,
afalg_cipher_cleanup)
|| !EVP_CIPHER_meth_set_impl_ctx_size(cipher_handle->_hidden,
sizeof(afalg_ctx)))) {
EVP_CIPHER_meth_free(cipher_handle->_hidden);
cipher_handle->_hidden= NULL;
}
return cipher_handle->_hidden;
}
static int afalg_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
const int **nids, int nid)
{
int r = 1;
if (cipher == NULL) {
*nids = afalg_cipher_nids;
return (sizeof(afalg_cipher_nids) / sizeof(afalg_cipher_nids[0]));
}
switch (nid) {
case NID_aes_128_cbc:
case NID_aes_192_cbc:
case NID_aes_256_cbc:
*cipher = afalg_aes_cbc(nid);
break;
default:
*cipher = NULL;
r = 0;
}
return r;
}
static int bind_afalg(ENGINE *e)
{
/* Ensure the afalg error handling is set up */
unsigned short i;
ERR_load_AFALG_strings();
if (!ENGINE_set_id(e, engine_afalg_id)
|| !ENGINE_set_name(e, engine_afalg_name)
|| !ENGINE_set_destroy_function(e, afalg_destroy)
|| !ENGINE_set_init_function(e, afalg_init)
|| !ENGINE_set_finish_function(e, afalg_finish)) {
AFALGerr(AFALG_F_BIND_AFALG, AFALG_R_INIT_FAILED);
return 0;
}
/*
* Create _hidden_aes_xxx_cbc by calling afalg_aes_xxx_cbc
* now, as bind_aflag can only be called by one thread at a
* time.
*/
for (i = 0; i < OSSL_NELEM(afalg_cipher_nids); i++) {
if (afalg_aes_cbc(afalg_cipher_nids[i]) == NULL) {
AFALGerr(AFALG_F_BIND_AFALG, AFALG_R_INIT_FAILED);
return 0;
}
}
if (!ENGINE_set_ciphers(e, afalg_ciphers)) {
AFALGerr(AFALG_F_BIND_AFALG, AFALG_R_INIT_FAILED);
return 0;
}
return 1;
}
# ifndef OPENSSL_NO_DYNAMIC_ENGINE
static int bind_helper(ENGINE *e, const char *id)
{
if (id && (strcmp(id, engine_afalg_id) != 0))
return 0;
if (!afalg_chk_platform())
return 0;
if (!bind_afalg(e))
return 0;
return 1;
}
IMPLEMENT_DYNAMIC_CHECK_FN()
IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
# endif
static int afalg_chk_platform(void)
{
int ret;
int i;
int kver[3] = { -1, -1, -1 };
int sock;
char *str;
struct utsname ut;
ret = uname(&ut);
if (ret != 0) {
AFALGerr(AFALG_F_AFALG_CHK_PLATFORM,
AFALG_R_FAILED_TO_GET_PLATFORM_INFO);
return 0;
}
str = strtok(ut.release, ".");
for (i = 0; i < 3 && str != NULL; i++) {
kver[i] = atoi(str);
str = strtok(NULL, ".");
}
if (KERNEL_VERSION(kver[0], kver[1], kver[2])
< KERNEL_VERSION(K_MAJ, K_MIN1, K_MIN2)) {
ALG_ERR("ASYNC AFALG not supported this kernel(%d.%d.%d)\n",
kver[0], kver[1], kver[2]);
ALG_ERR("ASYNC AFALG requires kernel version %d.%d.%d or later\n",
K_MAJ, K_MIN1, K_MIN2);
AFALGerr(AFALG_F_AFALG_CHK_PLATFORM,
AFALG_R_KERNEL_DOES_NOT_SUPPORT_ASYNC_AFALG);
return 0;
}
/* Test if we can actually create an AF_ALG socket */
sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
if (sock == -1) {
AFALGerr(AFALG_F_AFALG_CHK_PLATFORM, AFALG_R_SOCKET_CREATE_FAILED);
return 0;
}
close(sock);
return 1;
}
# ifdef OPENSSL_NO_DYNAMIC_ENGINE
static ENGINE *engine_afalg(void)
{
ENGINE *ret = ENGINE_new();
if (ret == NULL)
return NULL;
if (!bind_afalg(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
void engine_load_afalg_int(void)
{
ENGINE *toadd;
if (!afalg_chk_platform())
return;
toadd = engine_afalg();
if (toadd == NULL)
return;
ERR_set_mark();
ENGINE_add(toadd);
/*
* If the "add" worked, it gets a structural reference. So either way, we
* release our just-created reference.
*/
ENGINE_free(toadd);
/*
* If the "add" didn't work, it was probably a conflict because it was
* already added (eg. someone calling ENGINE_load_blah then calling
* ENGINE_load_builtin_engines() perhaps).
*/
ERR_pop_to_mark();
}
# endif
static int afalg_init(ENGINE *e)
{
return 1;
}
static int afalg_finish(ENGINE *e)
{
return 1;
}
static int free_cbc(void)
{
short unsigned int i;
for (i = 0; i < OSSL_NELEM(afalg_cipher_nids); i++) {
EVP_CIPHER_meth_free(cbc_handle[i]._hidden);
cbc_handle[i]._hidden = NULL;
}
return 1;
}
static int afalg_destroy(ENGINE *e)
{
ERR_unload_AFALG_strings();
free_cbc();
return 1;
}
#endif /* KERNEL VERSION */
|
./openssl/engines/e_loader_attic.c | /*
* Copyright 2016-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/* THIS ENGINE IS FOR TESTING PURPOSES ONLY. */
/* This file has quite some overlap with providers/implementations/storemgmt/file_store.c */
/* We need to use some engine deprecated APIs */
#define OPENSSL_SUPPRESS_DEPRECATED
#include "internal/e_os.h" /* for stat */
#include <string.h>
#include <sys/stat.h>
#include <ctype.h>
#include <assert.h>
#include <openssl/bio.h>
#include <openssl/dsa.h> /* For d2i_DSAPrivateKey */
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/pem.h>
#include <openssl/pkcs12.h> /* For the PKCS8 stuff o.O */
#include <openssl/rsa.h> /* For d2i_RSAPrivateKey */
#include <openssl/safestack.h>
#include <openssl/store.h>
#include <openssl/ui.h>
#include <openssl/engine.h>
#include <openssl/x509.h> /* For the PKCS8 stuff o.O */
#include "internal/asn1.h" /* For asn1_d2i_read_bio */
#include "internal/o_dir.h"
#include "internal/cryptlib.h"
#include "crypto/ctype.h" /* For ossl_isdigit */
#include "crypto/pem.h" /* For PVK and "blob" PEM headers */
#include "e_loader_attic_err.c"
DEFINE_STACK_OF(OSSL_STORE_INFO)
#ifndef S_ISDIR
# define S_ISDIR(a) (((a) & S_IFMT) == S_IFDIR)
#endif
/*-
* Password prompting
* ------------------
*/
static char *file_get_pass(const UI_METHOD *ui_method, char *pass,
size_t maxsize, const char *desc, const char *info,
void *data)
{
UI *ui = UI_new();
char *prompt = NULL;
if (ui == NULL) {
ATTICerr(0, ERR_R_UI_LIB);
return NULL;
}
if (ui_method != NULL)
UI_set_method(ui, ui_method);
UI_add_user_data(ui, data);
if ((prompt = UI_construct_prompt(ui, desc, info)) == NULL) {
ATTICerr(0, ERR_R_UI_LIB);
pass = NULL;
} else if (UI_add_input_string(ui, prompt, UI_INPUT_FLAG_DEFAULT_PWD,
pass, 0, maxsize - 1) <= 0) {
ATTICerr(0, ERR_R_UI_LIB);
pass = NULL;
} else {
switch (UI_process(ui)) {
case -2:
ATTICerr(0, ATTIC_R_UI_PROCESS_INTERRUPTED_OR_CANCELLED);
pass = NULL;
break;
case -1:
ATTICerr(0, ERR_R_UI_LIB);
pass = NULL;
break;
default:
break;
}
}
OPENSSL_free(prompt);
UI_free(ui);
return pass;
}
struct pem_pass_data {
const UI_METHOD *ui_method;
void *data;
const char *prompt_desc;
const char *prompt_info;
};
static int file_fill_pem_pass_data(struct pem_pass_data *pass_data,
const char *desc, const char *info,
const UI_METHOD *ui_method, void *ui_data)
{
if (pass_data == NULL)
return 0;
pass_data->ui_method = ui_method;
pass_data->data = ui_data;
pass_data->prompt_desc = desc;
pass_data->prompt_info = info;
return 1;
}
/* This is used anywhere a pem_password_cb is needed */
static int file_get_pem_pass(char *buf, int num, int w, void *data)
{
struct pem_pass_data *pass_data = data;
char *pass = file_get_pass(pass_data->ui_method, buf, num,
pass_data->prompt_desc, pass_data->prompt_info,
pass_data->data);
return pass == NULL ? 0 : strlen(pass);
}
/*
* Check if |str| ends with |suffix| preceded by a space, and if it does,
* return the index of that space. If there is no such suffix in |str|,
* return -1.
* For |str| == "FOO BAR" and |suffix| == "BAR", the returned value is 3.
*/
static int check_suffix(const char *str, const char *suffix)
{
int str_len = strlen(str);
int suffix_len = strlen(suffix) + 1;
const char *p = NULL;
if (suffix_len >= str_len)
return -1;
p = str + str_len - suffix_len;
if (*p != ' '
|| strcmp(p + 1, suffix) != 0)
return -1;
return p - str;
}
/*
* EMBEDDED is a special type of OSSL_STORE_INFO, specially for the file
* handlers, so we define it internally. This uses the possibility to
* create an OSSL_STORE_INFO with a generic data pointer and arbitrary
* type number.
*
* This is used by a FILE_HANDLER's try_decode function to signal that it
* has decoded the incoming blob into a new blob, and that the attempted
* decoding should be immediately restarted with the new blob, using the
* new PEM name.
*/
/* Negative numbers are never used for public OSSL_STORE_INFO types */
#define STORE_INFO_EMBEDDED -1
/* This is the embedded data */
struct embedded_st {
BUF_MEM *blob;
char *pem_name;
};
/* Helper functions */
static struct embedded_st *get0_EMBEDDED(OSSL_STORE_INFO *info)
{
return OSSL_STORE_INFO_get0_data(STORE_INFO_EMBEDDED, info);
}
static void store_info_free(OSSL_STORE_INFO *info)
{
struct embedded_st *data;
if (info != NULL && (data = get0_EMBEDDED(info)) != NULL) {
BUF_MEM_free(data->blob);
OPENSSL_free(data->pem_name);
OPENSSL_free(data);
}
OSSL_STORE_INFO_free(info);
}
static OSSL_STORE_INFO *new_EMBEDDED(const char *new_pem_name,
BUF_MEM *embedded)
{
OSSL_STORE_INFO *info = NULL;
struct embedded_st *data = NULL;
if ((data = OPENSSL_zalloc(sizeof(*data))) == NULL)
return NULL;
if ((info = OSSL_STORE_INFO_new(STORE_INFO_EMBEDDED, data)) == NULL) {
ATTICerr(0, ERR_R_OSSL_STORE_LIB);
OPENSSL_free(data);
return NULL;
}
data->blob = embedded;
data->pem_name =
new_pem_name == NULL ? NULL : OPENSSL_strdup(new_pem_name);
if (new_pem_name != NULL && data->pem_name == NULL) {
store_info_free(info);
info = NULL;
}
return info;
}
/*-
* The file scheme decoders
* ------------------------
*
* Each possible data type has its own decoder, which either operates
* through a given PEM name, or attempts to decode to see if the blob
* it's given is decodable for its data type. The assumption is that
* only the correct data type will match the content.
*/
/*-
* The try_decode function is called to check if the blob of data can
* be used by this handler, and if it can, decodes it into a supported
* OpenSSL type and returns an OSSL_STORE_INFO with the decoded data.
* Input:
* pem_name: If this blob comes from a PEM file, this holds
* the PEM name. If it comes from another type of
* file, this is NULL.
* pem_header: If this blob comes from a PEM file, this holds
* the PEM headers. If it comes from another type of
* file, this is NULL.
* blob: The blob of data to match with what this handler
* can use.
* len: The length of the blob.
* handler_ctx: For a handler marked repeatable, this pointer can
* be used to create a context for the handler. IT IS
* THE HANDLER'S RESPONSIBILITY TO CREATE AND DESTROY
* THIS CONTEXT APPROPRIATELY, i.e. create on first call
* and destroy when about to return NULL.
* matchcount: A pointer to an int to count matches for this data.
* Usually becomes 0 (no match) or 1 (match!), but may
* be higher in the (unlikely) event that the data matches
* more than one possibility. The int will always be
* zero when the function is called.
* ui_method: Application UI method for getting a password, pin
* or any other interactive data.
* ui_data: Application data to be passed to ui_method when
* it's called.
* libctx: The library context to be used if applicable
* propq: The property query string for any algorithm fetches
* Output:
* an OSSL_STORE_INFO
*/
typedef OSSL_STORE_INFO *(*file_try_decode_fn)(const char *pem_name,
const char *pem_header,
const unsigned char *blob,
size_t len, void **handler_ctx,
int *matchcount,
const UI_METHOD *ui_method,
void *ui_data, const char *uri,
OSSL_LIB_CTX *libctx,
const char *propq);
/*
* The eof function should return 1 if there's no more data to be found
* with the handler_ctx, otherwise 0. This is only used when the handler is
* marked repeatable.
*/
typedef int (*file_eof_fn)(void *handler_ctx);
/*
* The destroy_ctx function is used to destroy the handler_ctx that was
* initiated by a repeatable try_decode function. This is only used when
* the handler is marked repeatable.
*/
typedef void (*file_destroy_ctx_fn)(void **handler_ctx);
typedef struct file_handler_st {
const char *name;
file_try_decode_fn try_decode;
file_eof_fn eof;
file_destroy_ctx_fn destroy_ctx;
/* flags */
int repeatable;
} FILE_HANDLER;
/*
* PKCS#12 decoder. It operates by decoding all of the blob content,
* extracting all the interesting data from it and storing them internally,
* then serving them one piece at a time.
*/
static OSSL_STORE_INFO *try_decode_PKCS12(const char *pem_name,
const char *pem_header,
const unsigned char *blob,
size_t len, void **pctx,
int *matchcount,
const UI_METHOD *ui_method,
void *ui_data, const char *uri,
OSSL_LIB_CTX *libctx,
const char *propq)
{
OSSL_STORE_INFO *store_info = NULL;
STACK_OF(OSSL_STORE_INFO) *ctx = *pctx;
if (ctx == NULL) {
/* Initial parsing */
PKCS12 *p12;
if (pem_name != NULL)
/* No match, there is no PEM PKCS12 tag */
return NULL;
if ((p12 = d2i_PKCS12(NULL, &blob, len)) != NULL) {
char *pass = NULL;
char tpass[PEM_BUFSIZE];
EVP_PKEY *pkey = NULL;
X509 *cert = NULL;
STACK_OF(X509) *chain = NULL;
*matchcount = 1;
if (!PKCS12_mac_present(p12)
|| PKCS12_verify_mac(p12, "", 0)
|| PKCS12_verify_mac(p12, NULL, 0)) {
pass = "";
} else {
if ((pass = file_get_pass(ui_method, tpass, PEM_BUFSIZE,
"PKCS12 import", uri,
ui_data)) == NULL) {
ATTICerr(0, ATTIC_R_PASSPHRASE_CALLBACK_ERROR);
goto p12_end;
}
if (!PKCS12_verify_mac(p12, pass, strlen(pass))) {
ATTICerr(0, ATTIC_R_ERROR_VERIFYING_PKCS12_MAC);
goto p12_end;
}
}
if (PKCS12_parse(p12, pass, &pkey, &cert, &chain)) {
OSSL_STORE_INFO *osi_pkey = NULL;
OSSL_STORE_INFO *osi_cert = NULL;
OSSL_STORE_INFO *osi_ca = NULL;
int ok = 1;
if ((ctx = sk_OSSL_STORE_INFO_new_null()) != NULL) {
if (pkey != NULL) {
if ((osi_pkey = OSSL_STORE_INFO_new_PKEY(pkey)) != NULL
/* clearing pkey here avoids case distinctions */
&& (pkey = NULL) == NULL
&& sk_OSSL_STORE_INFO_push(ctx, osi_pkey) != 0)
osi_pkey = NULL;
else
ok = 0;
}
if (ok && cert != NULL) {
if ((osi_cert = OSSL_STORE_INFO_new_CERT(cert)) != NULL
/* clearing cert here avoids case distinctions */
&& (cert = NULL) == NULL
&& sk_OSSL_STORE_INFO_push(ctx, osi_cert) != 0)
osi_cert = NULL;
else
ok = 0;
}
while (ok && sk_X509_num(chain) > 0) {
X509 *ca = sk_X509_value(chain, 0);
if ((osi_ca = OSSL_STORE_INFO_new_CERT(ca)) != NULL
&& sk_X509_shift(chain) != NULL
&& sk_OSSL_STORE_INFO_push(ctx, osi_ca) != 0)
osi_ca = NULL;
else
ok = 0;
}
}
EVP_PKEY_free(pkey);
X509_free(cert);
OSSL_STACK_OF_X509_free(chain);
store_info_free(osi_pkey);
store_info_free(osi_cert);
store_info_free(osi_ca);
if (!ok) {
sk_OSSL_STORE_INFO_pop_free(ctx, store_info_free);
ctx = NULL;
}
*pctx = ctx;
}
}
p12_end:
PKCS12_free(p12);
if (ctx == NULL)
return NULL;
}
*matchcount = 1;
store_info = sk_OSSL_STORE_INFO_shift(ctx);
return store_info;
}
static int eof_PKCS12(void *ctx_)
{
STACK_OF(OSSL_STORE_INFO) *ctx = ctx_;
return ctx == NULL || sk_OSSL_STORE_INFO_num(ctx) == 0;
}
static void destroy_ctx_PKCS12(void **pctx)
{
STACK_OF(OSSL_STORE_INFO) *ctx = *pctx;
sk_OSSL_STORE_INFO_pop_free(ctx, store_info_free);
*pctx = NULL;
}
static FILE_HANDLER PKCS12_handler = {
"PKCS12",
try_decode_PKCS12,
eof_PKCS12,
destroy_ctx_PKCS12,
1 /* repeatable */
};
/*
* Encrypted PKCS#8 decoder. It operates by just decrypting the given blob
* into a new blob, which is returned as an EMBEDDED STORE_INFO. The whole
* decoding process will then start over with the new blob.
*/
static OSSL_STORE_INFO *try_decode_PKCS8Encrypted(const char *pem_name,
const char *pem_header,
const unsigned char *blob,
size_t len, void **pctx,
int *matchcount,
const UI_METHOD *ui_method,
void *ui_data,
const char *uri,
OSSL_LIB_CTX *libctx,
const char *propq)
{
X509_SIG *p8 = NULL;
char kbuf[PEM_BUFSIZE];
char *pass = NULL;
const X509_ALGOR *dalg = NULL;
const ASN1_OCTET_STRING *doct = NULL;
OSSL_STORE_INFO *store_info = NULL;
BUF_MEM *mem = NULL;
unsigned char *new_data = NULL;
int new_data_len;
if (pem_name != NULL) {
if (strcmp(pem_name, PEM_STRING_PKCS8) != 0)
return NULL;
*matchcount = 1;
}
if ((p8 = d2i_X509_SIG(NULL, &blob, len)) == NULL)
return NULL;
*matchcount = 1;
if ((mem = BUF_MEM_new()) == NULL) {
ATTICerr(0, ERR_R_BUF_LIB);
goto nop8;
}
if ((pass = file_get_pass(ui_method, kbuf, PEM_BUFSIZE,
"PKCS8 decrypt pass phrase", uri,
ui_data)) == NULL) {
ATTICerr(0, ATTIC_R_BAD_PASSWORD_READ);
goto nop8;
}
X509_SIG_get0(p8, &dalg, &doct);
if (!PKCS12_pbe_crypt(dalg, pass, strlen(pass), doct->data, doct->length,
&new_data, &new_data_len, 0))
goto nop8;
mem->data = (char *)new_data;
mem->max = mem->length = (size_t)new_data_len;
X509_SIG_free(p8);
p8 = NULL;
store_info = new_EMBEDDED(PEM_STRING_PKCS8INF, mem);
if (store_info == NULL) {
ATTICerr(0, ERR_R_OSSL_STORE_LIB);
goto nop8;
}
return store_info;
nop8:
X509_SIG_free(p8);
BUF_MEM_free(mem);
return NULL;
}
static FILE_HANDLER PKCS8Encrypted_handler = {
"PKCS8Encrypted",
try_decode_PKCS8Encrypted
};
/*
* Private key decoder. Decodes all sorts of private keys, both PKCS#8
* encoded ones and old style PEM ones (with the key type is encoded into
* the PEM name).
*/
static OSSL_STORE_INFO *try_decode_PrivateKey(const char *pem_name,
const char *pem_header,
const unsigned char *blob,
size_t len, void **pctx,
int *matchcount,
const UI_METHOD *ui_method,
void *ui_data, const char *uri,
OSSL_LIB_CTX *libctx,
const char *propq)
{
OSSL_STORE_INFO *store_info = NULL;
EVP_PKEY *pkey = NULL;
const EVP_PKEY_ASN1_METHOD *ameth = NULL;
if (pem_name != NULL) {
if (strcmp(pem_name, PEM_STRING_PKCS8INF) == 0) {
PKCS8_PRIV_KEY_INFO *p8inf =
d2i_PKCS8_PRIV_KEY_INFO(NULL, &blob, len);
*matchcount = 1;
if (p8inf != NULL)
pkey = EVP_PKCS82PKEY_ex(p8inf, libctx, propq);
PKCS8_PRIV_KEY_INFO_free(p8inf);
} else {
int slen;
int pkey_id;
if ((slen = check_suffix(pem_name, "PRIVATE KEY")) > 0
&& (ameth = EVP_PKEY_asn1_find_str(NULL, pem_name,
slen)) != NULL
&& EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL,
ameth)) {
*matchcount = 1;
pkey = d2i_PrivateKey_ex(pkey_id, NULL, &blob, len,
libctx, propq);
}
}
} else {
int i;
#ifndef OPENSSL_NO_ENGINE
ENGINE *curengine = ENGINE_get_first();
while (curengine != NULL) {
ENGINE_PKEY_ASN1_METHS_PTR asn1meths =
ENGINE_get_pkey_asn1_meths(curengine);
if (asn1meths != NULL) {
const int *nids = NULL;
int nids_n = asn1meths(curengine, NULL, &nids, 0);
for (i = 0; i < nids_n; i++) {
EVP_PKEY_ASN1_METHOD *ameth2 = NULL;
EVP_PKEY *tmp_pkey = NULL;
const unsigned char *tmp_blob = blob;
int pkey_id, pkey_flags;
if (!asn1meths(curengine, &ameth2, NULL, nids[i])
|| !EVP_PKEY_asn1_get0_info(&pkey_id, NULL,
&pkey_flags, NULL, NULL,
ameth2)
|| (pkey_flags & ASN1_PKEY_ALIAS) != 0)
continue;
ERR_set_mark(); /* prevent flooding error queue */
tmp_pkey = d2i_PrivateKey_ex(pkey_id, NULL,
&tmp_blob, len,
libctx, propq);
if (tmp_pkey != NULL) {
if (pkey != NULL)
EVP_PKEY_free(tmp_pkey);
else
pkey = tmp_pkey;
(*matchcount)++;
}
ERR_pop_to_mark();
}
}
curengine = ENGINE_get_next(curengine);
}
#endif
for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
EVP_PKEY *tmp_pkey = NULL;
const unsigned char *tmp_blob = blob;
int pkey_id, pkey_flags;
ameth = EVP_PKEY_asn1_get0(i);
if (!EVP_PKEY_asn1_get0_info(&pkey_id, NULL, &pkey_flags, NULL,
NULL, ameth)
|| (pkey_flags & ASN1_PKEY_ALIAS) != 0)
continue;
ERR_set_mark(); /* prevent flooding error queue */
tmp_pkey = d2i_PrivateKey_ex(pkey_id, NULL, &tmp_blob, len,
libctx, propq);
if (tmp_pkey != NULL) {
if (pkey != NULL)
EVP_PKEY_free(tmp_pkey);
else
pkey = tmp_pkey;
(*matchcount)++;
}
ERR_pop_to_mark();
}
if (*matchcount > 1) {
EVP_PKEY_free(pkey);
pkey = NULL;
}
}
if (pkey == NULL)
/* No match */
return NULL;
store_info = OSSL_STORE_INFO_new_PKEY(pkey);
if (store_info == NULL)
EVP_PKEY_free(pkey);
return store_info;
}
static FILE_HANDLER PrivateKey_handler = {
"PrivateKey",
try_decode_PrivateKey
};
/*
* Public key decoder. Only supports SubjectPublicKeyInfo formatted keys.
*/
static OSSL_STORE_INFO *try_decode_PUBKEY(const char *pem_name,
const char *pem_header,
const unsigned char *blob,
size_t len, void **pctx,
int *matchcount,
const UI_METHOD *ui_method,
void *ui_data, const char *uri,
OSSL_LIB_CTX *libctx,
const char *propq)
{
OSSL_STORE_INFO *store_info = NULL;
EVP_PKEY *pkey = NULL;
if (pem_name != NULL) {
if (strcmp(pem_name, PEM_STRING_PUBLIC) != 0)
/* No match */
return NULL;
*matchcount = 1;
}
if ((pkey = d2i_PUBKEY(NULL, &blob, len)) != NULL) {
*matchcount = 1;
store_info = OSSL_STORE_INFO_new_PUBKEY(pkey);
}
return store_info;
}
static FILE_HANDLER PUBKEY_handler = {
"PUBKEY",
try_decode_PUBKEY
};
/*
* Key parameter decoder.
*/
static OSSL_STORE_INFO *try_decode_params(const char *pem_name,
const char *pem_header,
const unsigned char *blob,
size_t len, void **pctx,
int *matchcount,
const UI_METHOD *ui_method,
void *ui_data, const char *uri,
OSSL_LIB_CTX *libctx,
const char *propq)
{
OSSL_STORE_INFO *store_info = NULL;
EVP_PKEY *pkey = NULL;
const EVP_PKEY_ASN1_METHOD *ameth = NULL;
if (pem_name != NULL) {
int slen;
int pkey_id;
if ((slen = check_suffix(pem_name, "PARAMETERS")) > 0
&& (ameth = EVP_PKEY_asn1_find_str(NULL, pem_name, slen)) != NULL
&& EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL,
ameth)) {
*matchcount = 1;
pkey = d2i_KeyParams(pkey_id, NULL, &blob, len);
}
} else {
int i;
for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
EVP_PKEY *tmp_pkey = NULL;
const unsigned char *tmp_blob = blob;
int pkey_id, pkey_flags;
ameth = EVP_PKEY_asn1_get0(i);
if (!EVP_PKEY_asn1_get0_info(&pkey_id, NULL, &pkey_flags, NULL,
NULL, ameth)
|| (pkey_flags & ASN1_PKEY_ALIAS) != 0)
continue;
ERR_set_mark(); /* prevent flooding error queue */
tmp_pkey = d2i_KeyParams(pkey_id, NULL, &tmp_blob, len);
if (tmp_pkey != NULL) {
if (pkey != NULL)
EVP_PKEY_free(tmp_pkey);
else
pkey = tmp_pkey;
(*matchcount)++;
}
ERR_pop_to_mark();
}
if (*matchcount > 1) {
EVP_PKEY_free(pkey);
pkey = NULL;
}
}
if (pkey == NULL)
/* No match */
return NULL;
store_info = OSSL_STORE_INFO_new_PARAMS(pkey);
if (store_info == NULL)
EVP_PKEY_free(pkey);
return store_info;
}
static FILE_HANDLER params_handler = {
"params",
try_decode_params
};
/*
* X.509 certificate decoder.
*/
static OSSL_STORE_INFO *try_decode_X509Certificate(const char *pem_name,
const char *pem_header,
const unsigned char *blob,
size_t len, void **pctx,
int *matchcount,
const UI_METHOD *ui_method,
void *ui_data,
const char *uri,
OSSL_LIB_CTX *libctx,
const char *propq)
{
OSSL_STORE_INFO *store_info = NULL;
X509 *cert = NULL;
/*
* In most cases, we can try to interpret the serialized data as a trusted
* cert (X509 + X509_AUX) and fall back to reading it as a normal cert
* (just X509), but if the PEM name specifically declares it as a trusted
* cert, then no fallback should be engaged. |ignore_trusted| tells if
* the fallback can be used (1) or not (0).
*/
int ignore_trusted = 1;
if (pem_name != NULL) {
if (strcmp(pem_name, PEM_STRING_X509_TRUSTED) == 0)
ignore_trusted = 0;
else if (strcmp(pem_name, PEM_STRING_X509_OLD) != 0
&& strcmp(pem_name, PEM_STRING_X509) != 0)
/* No match */
return NULL;
*matchcount = 1;
}
cert = X509_new_ex(libctx, propq);
if (cert == NULL)
return NULL;
if ((d2i_X509_AUX(&cert, &blob, len)) != NULL
|| (ignore_trusted && (d2i_X509(&cert, &blob, len)) != NULL)) {
*matchcount = 1;
store_info = OSSL_STORE_INFO_new_CERT(cert);
}
if (store_info == NULL)
X509_free(cert);
return store_info;
}
static FILE_HANDLER X509Certificate_handler = {
"X509Certificate",
try_decode_X509Certificate
};
/*
* X.509 CRL decoder.
*/
static OSSL_STORE_INFO *try_decode_X509CRL(const char *pem_name,
const char *pem_header,
const unsigned char *blob,
size_t len, void **pctx,
int *matchcount,
const UI_METHOD *ui_method,
void *ui_data, const char *uri,
OSSL_LIB_CTX *libctx,
const char *propq)
{
OSSL_STORE_INFO *store_info = NULL;
X509_CRL *crl = NULL;
if (pem_name != NULL) {
if (strcmp(pem_name, PEM_STRING_X509_CRL) != 0)
/* No match */
return NULL;
*matchcount = 1;
}
if ((crl = d2i_X509_CRL(NULL, &blob, len)) != NULL) {
*matchcount = 1;
store_info = OSSL_STORE_INFO_new_CRL(crl);
}
if (store_info == NULL)
X509_CRL_free(crl);
return store_info;
}
static FILE_HANDLER X509CRL_handler = {
"X509CRL",
try_decode_X509CRL
};
/*
* To finish it all off, we collect all the handlers.
*/
static const FILE_HANDLER *file_handlers[] = {
&PKCS12_handler,
&PKCS8Encrypted_handler,
&X509Certificate_handler,
&X509CRL_handler,
¶ms_handler,
&PUBKEY_handler,
&PrivateKey_handler,
};
/*-
* The loader itself
* -----------------
*/
struct ossl_store_loader_ctx_st {
char *uri; /* The URI we currently try to load */
enum {
is_raw = 0,
is_pem,
is_dir
} type;
int errcnt;
#define FILE_FLAG_SECMEM (1<<0)
#define FILE_FLAG_ATTACHED (1<<1)
unsigned int flags;
union {
struct { /* Used with is_raw and is_pem */
BIO *file;
/*
* The following are used when the handler is marked as
* repeatable
*/
const FILE_HANDLER *last_handler;
void *last_handler_ctx;
} file;
struct { /* Used with is_dir */
OPENSSL_DIR_CTX *ctx;
int end_reached;
/*
* When a search expression is given, these are filled in.
* |search_name| contains the file basename to look for.
* The string is exactly 8 characters long.
*/
char search_name[9];
/*
* The directory reading utility we have combines opening with
* reading the first name. To make sure we can detect the end
* at the right time, we read early and cache the name.
*/
const char *last_entry;
int last_errno;
} dir;
} _;
/* Expected object type. May be unspecified */
int expected_type;
OSSL_LIB_CTX *libctx;
char *propq;
};
static void OSSL_STORE_LOADER_CTX_free(OSSL_STORE_LOADER_CTX *ctx)
{
if (ctx == NULL)
return;
OPENSSL_free(ctx->propq);
OPENSSL_free(ctx->uri);
if (ctx->type != is_dir) {
if (ctx->_.file.last_handler != NULL) {
ctx->_.file.last_handler->destroy_ctx(&ctx->_.file.last_handler_ctx);
ctx->_.file.last_handler_ctx = NULL;
ctx->_.file.last_handler = NULL;
}
}
OPENSSL_free(ctx);
}
static int file_find_type(OSSL_STORE_LOADER_CTX *ctx)
{
BIO *buff = NULL;
char peekbuf[4096] = { 0, };
if ((buff = BIO_new(BIO_f_buffer())) == NULL)
return 0;
ctx->_.file.file = BIO_push(buff, ctx->_.file.file);
if (BIO_buffer_peek(ctx->_.file.file, peekbuf, sizeof(peekbuf) - 1) > 0) {
peekbuf[sizeof(peekbuf) - 1] = '\0';
if (strstr(peekbuf, "-----BEGIN ") != NULL)
ctx->type = is_pem;
}
return 1;
}
static OSSL_STORE_LOADER_CTX *file_open_ex
(const OSSL_STORE_LOADER *loader, const char *uri,
OSSL_LIB_CTX *libctx, const char *propq,
const UI_METHOD *ui_method, void *ui_data)
{
OSSL_STORE_LOADER_CTX *ctx = NULL;
struct stat st;
struct {
const char *path;
unsigned int check_absolute:1;
} path_data[2];
size_t path_data_n = 0, i;
const char *path, *p = uri, *q;
/*
* First step, just take the URI as is.
*/
path_data[path_data_n].check_absolute = 0;
path_data[path_data_n++].path = uri;
/*
* Second step, if the URI appears to start with the "file" scheme,
* extract the path and make that the second path to check.
* There's a special case if the URI also contains an authority, then
* the full URI shouldn't be used as a path anywhere.
*/
if (CHECK_AND_SKIP_CASE_PREFIX(p, "file:")) {
q = p;
if (CHECK_AND_SKIP_PREFIX(q, "//")) {
path_data_n--; /* Invalidate using the full URI */
if (CHECK_AND_SKIP_CASE_PREFIX(q, "localhost/")
|| CHECK_AND_SKIP_PREFIX(q, "/")) {
p = q - 1;
} else {
ATTICerr(0, ATTIC_R_URI_AUTHORITY_UNSUPPORTED);
return NULL;
}
}
path_data[path_data_n].check_absolute = 1;
#ifdef _WIN32
/* Windows "file:" URIs with a drive letter start with a '/' */
if (p[0] == '/' && p[2] == ':' && p[3] == '/') {
char c = tolower(p[1]);
if (c >= 'a' && c <= 'z') {
p++;
/* We know it's absolute, so no need to check */
path_data[path_data_n].check_absolute = 0;
}
}
#endif
path_data[path_data_n++].path = p;
}
for (i = 0, path = NULL; path == NULL && i < path_data_n; i++) {
/*
* If the scheme "file" was an explicit part of the URI, the path must
* be absolute. So says RFC 8089
*/
if (path_data[i].check_absolute && path_data[i].path[0] != '/') {
ATTICerr(0, ATTIC_R_PATH_MUST_BE_ABSOLUTE);
ERR_add_error_data(1, path_data[i].path);
return NULL;
}
if (stat(path_data[i].path, &st) < 0) {
ERR_raise_data(ERR_LIB_SYS, errno,
"calling stat(%s)",
path_data[i].path);
} else {
path = path_data[i].path;
}
}
if (path == NULL) {
return NULL;
}
/* Successfully found a working path */
ctx = OPENSSL_zalloc(sizeof(*ctx));
if (ctx == NULL)
return NULL;
ctx->uri = OPENSSL_strdup(uri);
if (ctx->uri == NULL)
goto err;
if (S_ISDIR(st.st_mode)) {
ctx->type = is_dir;
ctx->_.dir.last_entry = OPENSSL_DIR_read(&ctx->_.dir.ctx, path);
ctx->_.dir.last_errno = errno;
if (ctx->_.dir.last_entry == NULL) {
if (ctx->_.dir.last_errno != 0) {
ERR_raise(ERR_LIB_SYS, ctx->_.dir.last_errno);
goto err;
}
ctx->_.dir.end_reached = 1;
}
} else if ((ctx->_.file.file = BIO_new_file(path, "rb")) == NULL
|| !file_find_type(ctx)) {
BIO_free_all(ctx->_.file.file);
goto err;
}
if (propq != NULL) {
ctx->propq = OPENSSL_strdup(propq);
if (ctx->propq == NULL)
goto err;
}
ctx->libctx = libctx;
return ctx;
err:
OSSL_STORE_LOADER_CTX_free(ctx);
return NULL;
}
static OSSL_STORE_LOADER_CTX *file_open
(const OSSL_STORE_LOADER *loader, const char *uri,
const UI_METHOD *ui_method, void *ui_data)
{
return file_open_ex(loader, uri, NULL, NULL, ui_method, ui_data);
}
static OSSL_STORE_LOADER_CTX *file_attach
(const OSSL_STORE_LOADER *loader, BIO *bp,
OSSL_LIB_CTX *libctx, const char *propq,
const UI_METHOD *ui_method, void *ui_data)
{
OSSL_STORE_LOADER_CTX *ctx = NULL;
if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL
|| (propq != NULL && (ctx->propq = OPENSSL_strdup(propq)) == NULL)) {
OSSL_STORE_LOADER_CTX_free(ctx);
return NULL;
}
ctx->libctx = libctx;
ctx->flags |= FILE_FLAG_ATTACHED;
ctx->_.file.file = bp;
if (!file_find_type(ctx)) {
/* Safety measure */
ctx->_.file.file = NULL;
goto err;
}
return ctx;
err:
OSSL_STORE_LOADER_CTX_free(ctx);
return NULL;
}
static int file_ctrl(OSSL_STORE_LOADER_CTX *ctx, int cmd, va_list args)
{
int ret = 1;
switch (cmd) {
case OSSL_STORE_C_USE_SECMEM:
{
int on = *(va_arg(args, int *));
switch (on) {
case 0:
ctx->flags &= ~FILE_FLAG_SECMEM;
break;
case 1:
ctx->flags |= FILE_FLAG_SECMEM;
break;
default:
ATTICerr(0, ERR_R_PASSED_INVALID_ARGUMENT);
ret = 0;
break;
}
}
break;
default:
break;
}
return ret;
}
static int file_expect(OSSL_STORE_LOADER_CTX *ctx, int expected)
{
ctx->expected_type = expected;
return 1;
}
static int file_find(OSSL_STORE_LOADER_CTX *ctx,
const OSSL_STORE_SEARCH *search)
{
/*
* If ctx == NULL, the library is looking to know if this loader supports
* the given search type.
*/
if (OSSL_STORE_SEARCH_get_type(search) == OSSL_STORE_SEARCH_BY_NAME) {
unsigned long hash = 0;
if (ctx == NULL)
return 1;
if (ctx->type != is_dir) {
ATTICerr(0, ATTIC_R_SEARCH_ONLY_SUPPORTED_FOR_DIRECTORIES);
return 0;
}
hash = X509_NAME_hash_ex(OSSL_STORE_SEARCH_get0_name(search),
NULL, NULL, NULL);
BIO_snprintf(ctx->_.dir.search_name, sizeof(ctx->_.dir.search_name),
"%08lx", hash);
return 1;
}
if (ctx != NULL)
ATTICerr(0, ATTIC_R_UNSUPPORTED_SEARCH_TYPE);
return 0;
}
static OSSL_STORE_INFO *file_load_try_decode(OSSL_STORE_LOADER_CTX *ctx,
const char *pem_name,
const char *pem_header,
unsigned char *data, size_t len,
const UI_METHOD *ui_method,
void *ui_data, int *matchcount)
{
OSSL_STORE_INFO *result = NULL;
BUF_MEM *new_mem = NULL;
char *new_pem_name = NULL;
int t = 0;
again:
{
size_t i = 0;
void *handler_ctx = NULL;
const FILE_HANDLER **matching_handlers =
OPENSSL_zalloc(sizeof(*matching_handlers)
* OSSL_NELEM(file_handlers));
if (matching_handlers == NULL)
goto err;
*matchcount = 0;
for (i = 0; i < OSSL_NELEM(file_handlers); i++) {
const FILE_HANDLER *handler = file_handlers[i];
int try_matchcount = 0;
void *tmp_handler_ctx = NULL;
OSSL_STORE_INFO *tmp_result;
unsigned long err;
ERR_set_mark();
tmp_result =
handler->try_decode(pem_name, pem_header, data, len,
&tmp_handler_ctx, &try_matchcount,
ui_method, ui_data, ctx->uri,
ctx->libctx, ctx->propq);
/* avoid flooding error queue with low-level ASN.1 parse errors */
err = ERR_peek_last_error();
if (ERR_GET_LIB(err) == ERR_LIB_ASN1
&& ERR_GET_REASON(err) == ERR_R_NESTED_ASN1_ERROR)
ERR_pop_to_mark();
else
ERR_clear_last_mark();
if (try_matchcount > 0) {
matching_handlers[*matchcount] = handler;
if (handler_ctx)
handler->destroy_ctx(&handler_ctx);
handler_ctx = tmp_handler_ctx;
if ((*matchcount += try_matchcount) > 1) {
/* more than one match => ambiguous, kill any result */
store_info_free(result);
store_info_free(tmp_result);
if (handler->destroy_ctx != NULL)
handler->destroy_ctx(&handler_ctx);
handler_ctx = NULL;
tmp_result = NULL;
result = NULL;
}
if (result == NULL)
result = tmp_result;
if (result == NULL) /* e.g., PKCS#12 file decryption error */
break;
}
}
if (result != NULL
&& *matchcount == 1 && matching_handlers[0]->repeatable) {
ctx->_.file.last_handler = matching_handlers[0];
ctx->_.file.last_handler_ctx = handler_ctx;
}
OPENSSL_free(matching_handlers);
}
err:
OPENSSL_free(new_pem_name);
BUF_MEM_free(new_mem);
if (result != NULL
&& (t = OSSL_STORE_INFO_get_type(result)) == STORE_INFO_EMBEDDED) {
struct embedded_st *embedded = get0_EMBEDDED(result);
/* "steal" the embedded data */
pem_name = new_pem_name = embedded->pem_name;
new_mem = embedded->blob;
data = (unsigned char *)new_mem->data;
len = new_mem->length;
embedded->pem_name = NULL;
embedded->blob = NULL;
store_info_free(result);
result = NULL;
goto again;
}
return result;
}
static OSSL_STORE_INFO *file_load_try_repeat(OSSL_STORE_LOADER_CTX *ctx,
const UI_METHOD *ui_method,
void *ui_data)
{
OSSL_STORE_INFO *result = NULL;
int try_matchcount = 0;
if (ctx->_.file.last_handler != NULL) {
result =
ctx->_.file.last_handler->try_decode(NULL, NULL, NULL, 0,
&ctx->_.file.last_handler_ctx,
&try_matchcount,
ui_method, ui_data, ctx->uri,
ctx->libctx, ctx->propq);
if (result == NULL) {
ctx->_.file.last_handler->destroy_ctx(&ctx->_.file.last_handler_ctx);
ctx->_.file.last_handler_ctx = NULL;
ctx->_.file.last_handler = NULL;
}
}
return result;
}
static void pem_free_flag(void *pem_data, int secure, size_t num)
{
if (secure)
OPENSSL_secure_clear_free(pem_data, num);
else
OPENSSL_free(pem_data);
}
static int file_read_pem(BIO *bp, char **pem_name, char **pem_header,
unsigned char **data, long *len,
const UI_METHOD *ui_method, void *ui_data,
const char *uri, int secure)
{
int i = secure
? PEM_read_bio_ex(bp, pem_name, pem_header, data, len,
PEM_FLAG_SECURE | PEM_FLAG_EAY_COMPATIBLE)
: PEM_read_bio(bp, pem_name, pem_header, data, len);
if (i <= 0)
return 0;
/*
* 10 is the number of characters in "Proc-Type:", which
* PEM_get_EVP_CIPHER_INFO() requires to be present.
* If the PEM header has less characters than that, it's
* not worth spending cycles on it.
*/
if (strlen(*pem_header) > 10) {
EVP_CIPHER_INFO cipher;
struct pem_pass_data pass_data;
if (!PEM_get_EVP_CIPHER_INFO(*pem_header, &cipher)
|| !file_fill_pem_pass_data(&pass_data, "PEM pass phrase", uri,
ui_method, ui_data)
|| !PEM_do_header(&cipher, *data, len, file_get_pem_pass,
&pass_data)) {
return 0;
}
}
return 1;
}
static OSSL_STORE_INFO *file_try_read_msblob(BIO *bp, int *matchcount)
{
OSSL_STORE_INFO *result = NULL;
int ispub = -1;
{
unsigned int magic = 0, bitlen = 0;
int isdss = 0;
unsigned char peekbuf[16] = { 0, };
const unsigned char *p = peekbuf;
if (BIO_buffer_peek(bp, peekbuf, sizeof(peekbuf)) <= 0)
return 0;
if (ossl_do_blob_header(&p, sizeof(peekbuf), &magic, &bitlen,
&isdss, &ispub) <= 0)
return 0;
}
(*matchcount)++;
{
EVP_PKEY *tmp = ispub
? b2i_PublicKey_bio(bp)
: b2i_PrivateKey_bio(bp);
if (tmp == NULL
|| (result = OSSL_STORE_INFO_new_PKEY(tmp)) == NULL) {
EVP_PKEY_free(tmp);
return 0;
}
}
return result;
}
static OSSL_STORE_INFO *file_try_read_PVK(BIO *bp, const UI_METHOD *ui_method,
void *ui_data, const char *uri,
int *matchcount)
{
OSSL_STORE_INFO *result = NULL;
{
unsigned int saltlen = 0, keylen = 0;
unsigned char peekbuf[24] = { 0, };
const unsigned char *p = peekbuf;
if (BIO_buffer_peek(bp, peekbuf, sizeof(peekbuf)) <= 0)
return 0;
if (!ossl_do_PVK_header(&p, sizeof(peekbuf), 0, &saltlen, &keylen))
return 0;
}
(*matchcount)++;
{
EVP_PKEY *tmp = NULL;
struct pem_pass_data pass_data;
if (!file_fill_pem_pass_data(&pass_data, "PVK pass phrase", uri,
ui_method, ui_data)
|| (tmp = b2i_PVK_bio(bp, file_get_pem_pass, &pass_data)) == NULL
|| (result = OSSL_STORE_INFO_new_PKEY(tmp)) == NULL) {
EVP_PKEY_free(tmp);
return 0;
}
}
return result;
}
static int file_read_asn1(BIO *bp, unsigned char **data, long *len)
{
BUF_MEM *mem = NULL;
if (asn1_d2i_read_bio(bp, &mem) < 0)
return 0;
*data = (unsigned char *)mem->data;
*len = (long)mem->length;
OPENSSL_free(mem);
return 1;
}
static int file_name_to_uri(OSSL_STORE_LOADER_CTX *ctx, const char *name,
char **data)
{
assert(name != NULL);
assert(data != NULL);
{
const char *pathsep = ossl_ends_with_dirsep(ctx->uri) ? "" : "/";
long calculated_length = strlen(ctx->uri) + strlen(pathsep)
+ strlen(name) + 1 /* \0 */;
*data = OPENSSL_zalloc(calculated_length);
if (*data == NULL)
return 0;
OPENSSL_strlcat(*data, ctx->uri, calculated_length);
OPENSSL_strlcat(*data, pathsep, calculated_length);
OPENSSL_strlcat(*data, name, calculated_length);
}
return 1;
}
static int file_name_check(OSSL_STORE_LOADER_CTX *ctx, const char *name)
{
const char *p = NULL;
size_t len = strlen(ctx->_.dir.search_name);
/* If there are no search criteria, all names are accepted */
if (ctx->_.dir.search_name[0] == '\0')
return 1;
/* If the expected type isn't supported, no name is accepted */
if (ctx->expected_type != 0
&& ctx->expected_type != OSSL_STORE_INFO_CERT
&& ctx->expected_type != OSSL_STORE_INFO_CRL)
return 0;
/*
* First, check the basename
*/
if (OPENSSL_strncasecmp(name, ctx->_.dir.search_name, len) != 0
|| name[len] != '.')
return 0;
p = &name[len + 1];
/*
* Then, if the expected type is a CRL, check that the extension starts
* with 'r'
*/
if (*p == 'r') {
p++;
if (ctx->expected_type != 0
&& ctx->expected_type != OSSL_STORE_INFO_CRL)
return 0;
} else if (ctx->expected_type == OSSL_STORE_INFO_CRL) {
return 0;
}
/*
* Last, check that the rest of the extension is a decimal number, at
* least one digit long.
*/
if (!isdigit((unsigned char)*p))
return 0;
while (isdigit((unsigned char)*p))
p++;
#ifdef __VMS
/*
* One extra step here, check for a possible generation number.
*/
if (*p == ';')
for (p++; *p != '\0'; p++)
if (!ossl_isdigit(*p))
break;
#endif
/*
* If we've reached the end of the string at this point, we've successfully
* found a fitting file name.
*/
return *p == '\0';
}
static int file_eof(OSSL_STORE_LOADER_CTX *ctx);
static int file_error(OSSL_STORE_LOADER_CTX *ctx);
static OSSL_STORE_INFO *file_load(OSSL_STORE_LOADER_CTX *ctx,
const UI_METHOD *ui_method,
void *ui_data)
{
OSSL_STORE_INFO *result = NULL;
ctx->errcnt = 0;
if (ctx->type == is_dir) {
do {
char *newname = NULL;
if (ctx->_.dir.last_entry == NULL) {
if (!ctx->_.dir.end_reached) {
assert(ctx->_.dir.last_errno != 0);
ERR_raise(ERR_LIB_SYS, ctx->_.dir.last_errno);
ctx->errcnt++;
}
return NULL;
}
if (ctx->_.dir.last_entry[0] != '.'
&& file_name_check(ctx, ctx->_.dir.last_entry)
&& !file_name_to_uri(ctx, ctx->_.dir.last_entry, &newname))
return NULL;
/*
* On the first call (with a NULL context), OPENSSL_DIR_read()
* cares about the second argument. On the following calls, it
* only cares that it isn't NULL. Therefore, we can safely give
* it our URI here.
*/
ctx->_.dir.last_entry = OPENSSL_DIR_read(&ctx->_.dir.ctx, ctx->uri);
ctx->_.dir.last_errno = errno;
if (ctx->_.dir.last_entry == NULL && ctx->_.dir.last_errno == 0)
ctx->_.dir.end_reached = 1;
if (newname != NULL
&& (result = OSSL_STORE_INFO_new_NAME(newname)) == NULL) {
OPENSSL_free(newname);
ATTICerr(0, ERR_R_OSSL_STORE_LIB);
return NULL;
}
} while (result == NULL && !file_eof(ctx));
} else {
int matchcount = -1;
again:
result = file_load_try_repeat(ctx, ui_method, ui_data);
if (result != NULL)
return result;
if (file_eof(ctx))
return NULL;
do {
char *pem_name = NULL; /* PEM record name */
char *pem_header = NULL; /* PEM record header */
unsigned char *data = NULL; /* DER encoded data */
long len = 0; /* DER encoded data length */
matchcount = -1;
if (ctx->type == is_pem) {
if (!file_read_pem(ctx->_.file.file, &pem_name, &pem_header,
&data, &len, ui_method, ui_data, ctx->uri,
(ctx->flags & FILE_FLAG_SECMEM) != 0)) {
ctx->errcnt++;
goto endloop;
}
} else {
if ((result = file_try_read_msblob(ctx->_.file.file,
&matchcount)) != NULL
|| (result = file_try_read_PVK(ctx->_.file.file,
ui_method, ui_data, ctx->uri,
&matchcount)) != NULL)
goto endloop;
if (!file_read_asn1(ctx->_.file.file, &data, &len)) {
ctx->errcnt++;
goto endloop;
}
}
result = file_load_try_decode(ctx, pem_name, pem_header, data, len,
ui_method, ui_data, &matchcount);
if (result != NULL)
goto endloop;
/*
* If a PEM name matches more than one handler, the handlers are
* badly coded.
*/
if (!ossl_assert(pem_name == NULL || matchcount <= 1)) {
ctx->errcnt++;
goto endloop;
}
if (matchcount > 1) {
ATTICerr(0, ATTIC_R_AMBIGUOUS_CONTENT_TYPE);
} else if (matchcount == 1) {
/*
* If there are other errors on the stack, they already show
* what the problem is.
*/
if (ERR_peek_error() == 0) {
ATTICerr(0, ATTIC_R_UNSUPPORTED_CONTENT_TYPE);
if (pem_name != NULL)
ERR_add_error_data(3, "PEM type is '", pem_name, "'");
}
}
if (matchcount > 0)
ctx->errcnt++;
endloop:
pem_free_flag(pem_name, (ctx->flags & FILE_FLAG_SECMEM) != 0, 0);
pem_free_flag(pem_header, (ctx->flags & FILE_FLAG_SECMEM) != 0, 0);
pem_free_flag(data, (ctx->flags & FILE_FLAG_SECMEM) != 0, len);
} while (matchcount == 0 && !file_eof(ctx) && !file_error(ctx));
/* We bail out on ambiguity */
if (matchcount > 1) {
store_info_free(result);
return NULL;
}
if (result != NULL
&& ctx->expected_type != 0
&& ctx->expected_type != OSSL_STORE_INFO_get_type(result)) {
store_info_free(result);
goto again;
}
}
return result;
}
static int file_error(OSSL_STORE_LOADER_CTX *ctx)
{
return ctx->errcnt > 0;
}
static int file_eof(OSSL_STORE_LOADER_CTX *ctx)
{
if (ctx->type == is_dir)
return ctx->_.dir.end_reached;
if (ctx->_.file.last_handler != NULL
&& !ctx->_.file.last_handler->eof(ctx->_.file.last_handler_ctx))
return 0;
return BIO_eof(ctx->_.file.file);
}
static int file_close(OSSL_STORE_LOADER_CTX *ctx)
{
if ((ctx->flags & FILE_FLAG_ATTACHED) == 0) {
if (ctx->type == is_dir)
OPENSSL_DIR_end(&ctx->_.dir.ctx);
else
BIO_free_all(ctx->_.file.file);
} else {
/*
* Because file_attach() called file_find_type(), we know that a
* BIO_f_buffer() has been pushed on top of the regular BIO.
*/
BIO *buff = ctx->_.file.file;
/* Detach buff */
(void)BIO_pop(ctx->_.file.file);
/* Safety measure */
ctx->_.file.file = NULL;
BIO_free(buff);
}
OSSL_STORE_LOADER_CTX_free(ctx);
return 1;
}
/*-
* ENGINE management
*/
static const char *loader_attic_id = "loader_attic";
static const char *loader_attic_name = "'file:' loader";
static OSSL_STORE_LOADER *loader_attic = NULL;
static int loader_attic_init(ENGINE *e)
{
return 1;
}
static int loader_attic_finish(ENGINE *e)
{
return 1;
}
static int loader_attic_destroy(ENGINE *e)
{
OSSL_STORE_LOADER *loader = OSSL_STORE_unregister_loader("file");
if (loader == NULL)
return 0;
ERR_unload_ATTIC_strings();
OSSL_STORE_LOADER_free(loader);
return 1;
}
static int bind_loader_attic(ENGINE *e)
{
/* Ensure the ATTIC error handling is set up on best effort basis */
ERR_load_ATTIC_strings();
if (/* Create the OSSL_STORE_LOADER */
(loader_attic = OSSL_STORE_LOADER_new(e, "file")) == NULL
|| !OSSL_STORE_LOADER_set_open_ex(loader_attic, file_open_ex)
|| !OSSL_STORE_LOADER_set_open(loader_attic, file_open)
|| !OSSL_STORE_LOADER_set_attach(loader_attic, file_attach)
|| !OSSL_STORE_LOADER_set_ctrl(loader_attic, file_ctrl)
|| !OSSL_STORE_LOADER_set_expect(loader_attic, file_expect)
|| !OSSL_STORE_LOADER_set_find(loader_attic, file_find)
|| !OSSL_STORE_LOADER_set_load(loader_attic, file_load)
|| !OSSL_STORE_LOADER_set_eof(loader_attic, file_eof)
|| !OSSL_STORE_LOADER_set_error(loader_attic, file_error)
|| !OSSL_STORE_LOADER_set_close(loader_attic, file_close)
/* Init the engine itself */
|| !ENGINE_set_id(e, loader_attic_id)
|| !ENGINE_set_name(e, loader_attic_name)
|| !ENGINE_set_destroy_function(e, loader_attic_destroy)
|| !ENGINE_set_init_function(e, loader_attic_init)
|| !ENGINE_set_finish_function(e, loader_attic_finish)
/* Finally, register the method with libcrypto */
|| !OSSL_STORE_register_loader(loader_attic)) {
OSSL_STORE_LOADER_free(loader_attic);
loader_attic = NULL;
ATTICerr(0, ATTIC_R_INIT_FAILED);
return 0;
}
return 1;
}
#ifdef OPENSSL_NO_DYNAMIC_ENGINE
# error "Only allowed as dynamically shared object"
#endif
static int bind_helper(ENGINE *e, const char *id)
{
if (id && (strcmp(id, loader_attic_id) != 0))
return 0;
if (!bind_loader_attic(e))
return 0;
return 1;
}
IMPLEMENT_DYNAMIC_CHECK_FN()
IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
|
./openssl/engines/e_capi_err.c | /*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/err.h>
#include "e_capi_err.h"
#ifndef OPENSSL_NO_ERR
static ERR_STRING_DATA CAPI_str_reasons[] = {
{ERR_PACK(0, 0, CAPI_R_CANT_CREATE_HASH_OBJECT), "can't create hash object"},
{ERR_PACK(0, 0, CAPI_R_CANT_FIND_CAPI_CONTEXT), "can't find capi context"},
{ERR_PACK(0, 0, CAPI_R_CANT_GET_KEY), "can't get key"},
{ERR_PACK(0, 0, CAPI_R_CANT_SET_HASH_VALUE), "can't set hash value"},
{ERR_PACK(0, 0, CAPI_R_CRYPTACQUIRECONTEXT_ERROR),
"cryptacquirecontext error"},
{ERR_PACK(0, 0, CAPI_R_CRYPTENUMPROVIDERS_ERROR),
"cryptenumproviders error"},
{ERR_PACK(0, 0, CAPI_R_DECRYPT_ERROR), "decrypt error"},
{ERR_PACK(0, 0, CAPI_R_ENGINE_NOT_INITIALIZED), "engine not initialized"},
{ERR_PACK(0, 0, CAPI_R_ENUMCONTAINERS_ERROR), "enumcontainers error"},
{ERR_PACK(0, 0, CAPI_R_ERROR_ADDING_CERT), "error adding cert"},
{ERR_PACK(0, 0, CAPI_R_ERROR_CREATING_STORE), "error creating store"},
{ERR_PACK(0, 0, CAPI_R_ERROR_GETTING_FRIENDLY_NAME),
"error getting friendly name"},
{ERR_PACK(0, 0, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO),
"error getting key provider info"},
{ERR_PACK(0, 0, CAPI_R_ERROR_OPENING_STORE), "error opening store"},
{ERR_PACK(0, 0, CAPI_R_ERROR_SIGNING_HASH), "error signing hash"},
{ERR_PACK(0, 0, CAPI_R_FILE_OPEN_ERROR), "file open error"},
{ERR_PACK(0, 0, CAPI_R_FUNCTION_NOT_SUPPORTED), "function not supported"},
{ERR_PACK(0, 0, CAPI_R_GETUSERKEY_ERROR), "getuserkey error"},
{ERR_PACK(0, 0, CAPI_R_INVALID_DIGEST_LENGTH), "invalid digest length"},
{ERR_PACK(0, 0, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER),
"invalid dsa public key blob magic number"},
{ERR_PACK(0, 0, CAPI_R_INVALID_LOOKUP_METHOD), "invalid lookup method"},
{ERR_PACK(0, 0, CAPI_R_INVALID_PUBLIC_KEY_BLOB), "invalid public key blob"},
{ERR_PACK(0, 0, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER),
"invalid rsa public key blob magic number"},
{ERR_PACK(0, 0, CAPI_R_PUBKEY_EXPORT_ERROR), "pubkey export error"},
{ERR_PACK(0, 0, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR),
"pubkey export length error"},
{ERR_PACK(0, 0, CAPI_R_UNKNOWN_COMMAND), "unknown command"},
{ERR_PACK(0, 0, CAPI_R_UNSUPPORTED_ALGORITHM_NID),
"unsupported algorithm nid"},
{ERR_PACK(0, 0, CAPI_R_UNSUPPORTED_PADDING), "unsupported padding"},
{ERR_PACK(0, 0, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM),
"unsupported public key algorithm"},
{ERR_PACK(0, 0, CAPI_R_WIN32_ERROR), "win32 error"},
{0, NULL}
};
#endif
static int lib_code = 0;
static int error_loaded = 0;
static int ERR_load_CAPI_strings(void)
{
if (lib_code == 0)
lib_code = ERR_get_next_error_library();
if (!error_loaded) {
#ifndef OPENSSL_NO_ERR
ERR_load_strings(lib_code, CAPI_str_reasons);
#endif
error_loaded = 1;
}
return 1;
}
static void ERR_unload_CAPI_strings(void)
{
if (error_loaded) {
#ifndef OPENSSL_NO_ERR
ERR_unload_strings(lib_code, CAPI_str_reasons);
#endif
error_loaded = 0;
}
}
static void ERR_CAPI_error(int function, int reason, const char *file, int line)
{
if (lib_code == 0)
lib_code = ERR_get_next_error_library();
ERR_raise(lib_code, reason);
ERR_set_debug(file, line, NULL);
}
static int ERR_CAPI_lib(void)
{
if (lib_code == 0)
lib_code = ERR_get_next_error_library();
return lib_code;
}
|
./openssl/engines/e_dasync_err.h | /*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef OSSL_E_DASYNC_ERR_H
# define OSSL_E_DASYNC_ERR_H
# pragma once
# include <openssl/opensslconf.h>
# include <openssl/symhacks.h>
# define DASYNCerr(f, r) ERR_DASYNC_error(0, (r), OPENSSL_FILE, OPENSSL_LINE)
/*
* DASYNC reason codes.
*/
# define DASYNC_R_INIT_FAILED 100
#endif
|
./openssl/engines/e_capi.c | /*
* Copyright 2008-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/* We need to use some deprecated APIs */
#define OPENSSL_SUPPRESS_DEPRECATED
#ifdef _WIN32
# ifndef _WIN32_WINNT
# define _WIN32_WINNT 0x0400
# endif
# include <windows.h>
# include <wincrypt.h>
# include <stdio.h>
# include <string.h>
# include <stdlib.h>
# include <malloc.h>
# ifndef alloca
# define alloca _alloca
# endif
# include <openssl/crypto.h>
# ifndef OPENSSL_NO_CAPIENG
# include <openssl/buffer.h>
# include <openssl/bn.h>
# include <openssl/rsa.h>
# include <openssl/dsa.h>
/*
* This module uses several "new" interfaces, among which is
* CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
* one of possible values you can pass to function in question. By
* checking if it's defined we can see if wincrypt.h and accompanying
* crypt32.lib are in shape. The native MingW32 headers up to and
* including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
* defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
* so we check for these too and avoid compiling.
* Yes, it's rather "weak" test and if compilation fails,
* then re-configure with -DOPENSSL_NO_CAPIENG.
*/
# if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
defined(CERT_STORE_PROV_SYSTEM_A) && \
defined(CERT_STORE_READONLY_FLAG)
# define __COMPILE_CAPIENG
# endif /* CERT_KEY_PROV_INFO_PROP_ID */
# endif /* OPENSSL_NO_CAPIENG */
#endif /* _WIN32 */
#ifdef __COMPILE_CAPIENG
# undef X509_EXTENSIONS
/* Definitions which may be missing from earlier version of headers */
# ifndef CERT_STORE_OPEN_EXISTING_FLAG
# define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
# endif
# ifndef CERT_STORE_CREATE_NEW_FLAG
# define CERT_STORE_CREATE_NEW_FLAG 0x00002000
# endif
# ifndef CERT_SYSTEM_STORE_CURRENT_USER
# define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
# endif
# ifndef ALG_SID_SHA_256
# define ALG_SID_SHA_256 12
# endif
# ifndef ALG_SID_SHA_384
# define ALG_SID_SHA_384 13
# endif
# ifndef ALG_SID_SHA_512
# define ALG_SID_SHA_512 14
# endif
# ifndef CALG_SHA_256
# define CALG_SHA_256 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_256)
# endif
# ifndef CALG_SHA_384
# define CALG_SHA_384 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_384)
# endif
# ifndef CALG_SHA_512
# define CALG_SHA_512 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_512)
# endif
# ifndef PROV_RSA_AES
# define PROV_RSA_AES 24
# endif
# include <openssl/engine.h>
# include <openssl/pem.h>
# include <openssl/x509v3.h>
# include "e_capi_err.h"
# include "e_capi_err.c"
static const char *engine_capi_id = "capi";
static const char *engine_capi_name = "CryptoAPI ENGINE";
typedef struct CAPI_CTX_st CAPI_CTX;
typedef struct CAPI_KEY_st CAPI_KEY;
static void capi_addlasterror(void);
static void capi_adderror(DWORD err);
static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
void capi_free_key(CAPI_KEY *key);
static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id,
HCERTSTORE hstore);
CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
UI_METHOD *ui_method, void *callback_data);
static int capi_rsa_sign(int dtype, const unsigned char *m,
unsigned int m_len, unsigned char *sigret,
unsigned int *siglen, const RSA *rsa);
static int capi_rsa_priv_enc(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
static int capi_rsa_priv_dec(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding);
static int capi_rsa_free(RSA *rsa);
# ifndef OPENSSL_NO_DSA
static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
DSA *dsa);
static int capi_dsa_free(DSA *dsa);
# endif
static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
EVP_PKEY **pkey, STACK_OF(X509) **pother,
UI_METHOD *ui_method,
void *callback_data);
static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
# ifdef OPENSSL_CAPIENG_DIALOG
static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
# endif
void engine_load_capi_int(void);
typedef PCCERT_CONTEXT(WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
LPCWSTR, DWORD, DWORD, void *);
typedef HWND(WINAPI *GETCONSWIN)(void);
/*
* This structure contains CAPI ENGINE specific data: it contains various
* global options and affects how other functions behave.
*/
# define CAPI_DBG_TRACE 2
# define CAPI_DBG_ERROR 1
struct CAPI_CTX_st {
int debug_level;
char *debug_file;
/* Parameters to use for container lookup */
DWORD keytype;
LPSTR cspname;
DWORD csptype;
/* Certificate store name to use */
LPSTR storename;
LPSTR ssl_client_store;
/* System store flags */
DWORD store_flags;
/* Lookup string meanings in load_private_key */
# define CAPI_LU_SUBSTR 1 /* Substring of subject: uses "storename" */
# define CAPI_LU_FNAME 2 /* Friendly name: uses storename */
# define CAPI_LU_CONTNAME 3 /* Container name: uses cspname, keytype */
int lookup_method;
/* Info to dump with dumpcerts option */
# define CAPI_DMP_SUMMARY 0x1 /* Issuer and serial name strings */
# define CAPI_DMP_FNAME 0x2 /* Friendly name */
# define CAPI_DMP_FULL 0x4 /* Full X509_print dump */
# define CAPI_DMP_PEM 0x8 /* Dump PEM format certificate */
# define CAPI_DMP_PSKEY 0x10 /* Dump pseudo key (if possible) */
# define CAPI_DMP_PKEYINFO 0x20 /* Dump key info (if possible) */
DWORD dump_flags;
int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
CERTDLG certselectdlg;
GETCONSWIN getconswindow;
};
static CAPI_CTX *capi_ctx_new(void);
static void capi_ctx_free(CAPI_CTX *ctx);
static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type,
int check);
static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
# define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
# define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
# define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
# define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
# define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
# define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
# define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
# define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
# define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
# define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
# define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
# define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
# define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
# define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
{CAPI_CMD_LIST_CERTS,
"list_certs",
"List all certificates in store",
ENGINE_CMD_FLAG_NO_INPUT},
{CAPI_CMD_LOOKUP_CERT,
"lookup_cert",
"Lookup and output certificates",
ENGINE_CMD_FLAG_STRING},
{CAPI_CMD_DEBUG_LEVEL,
"debug_level",
"debug level (1=errors, 2=trace)",
ENGINE_CMD_FLAG_NUMERIC},
{CAPI_CMD_DEBUG_FILE,
"debug_file",
"debugging filename)",
ENGINE_CMD_FLAG_STRING},
{CAPI_CMD_KEYTYPE,
"key_type",
"Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
ENGINE_CMD_FLAG_NUMERIC},
{CAPI_CMD_LIST_CSPS,
"list_csps",
"List all CSPs",
ENGINE_CMD_FLAG_NO_INPUT},
{CAPI_CMD_SET_CSP_IDX,
"csp_idx",
"Set CSP by index",
ENGINE_CMD_FLAG_NUMERIC},
{CAPI_CMD_SET_CSP_NAME,
"csp_name",
"Set CSP name, (default CSP used if not specified)",
ENGINE_CMD_FLAG_STRING},
{CAPI_CMD_SET_CSP_TYPE,
"csp_type",
"Set CSP type, (default RSA_PROV_FULL)",
ENGINE_CMD_FLAG_NUMERIC},
{CAPI_CMD_LIST_CONTAINERS,
"list_containers",
"list container names",
ENGINE_CMD_FLAG_NO_INPUT},
{CAPI_CMD_LIST_OPTIONS,
"list_options",
"Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
"32=private key info)",
ENGINE_CMD_FLAG_NUMERIC},
{CAPI_CMD_LOOKUP_METHOD,
"lookup_method",
"Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
ENGINE_CMD_FLAG_NUMERIC},
{CAPI_CMD_STORE_NAME,
"store_name",
"certificate store name, default \"MY\"",
ENGINE_CMD_FLAG_STRING},
{CAPI_CMD_STORE_FLAGS,
"store_flags",
"Certificate store flags: 1 = system store",
ENGINE_CMD_FLAG_NUMERIC},
{0, NULL, NULL, 0}
};
static int capi_idx = -1;
static int rsa_capi_idx = -1;
static int dsa_capi_idx = -1;
static int cert_capi_idx = -1;
static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
{
int ret = 1;
CAPI_CTX *ctx;
BIO *out;
LPSTR tmpstr;
if (capi_idx == -1) {
CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
return 0;
}
ctx = ENGINE_get_ex_data(e, capi_idx);
out = BIO_new_fp(stdout, BIO_NOCLOSE);
if (out == NULL) {
CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_FILE_OPEN_ERROR);
return 0;
}
switch (cmd) {
case CAPI_CMD_LIST_CSPS:
ret = capi_list_providers(ctx, out);
break;
case CAPI_CMD_LIST_CERTS:
ret = capi_list_certs(ctx, out, NULL);
break;
case CAPI_CMD_LOOKUP_CERT:
ret = capi_list_certs(ctx, out, p);
break;
case CAPI_CMD_LIST_CONTAINERS:
ret = capi_list_containers(ctx, out);
break;
case CAPI_CMD_STORE_NAME:
tmpstr = OPENSSL_strdup(p);
if (tmpstr != NULL) {
OPENSSL_free(ctx->storename);
ctx->storename = tmpstr;
CAPI_trace(ctx, "Setting store name to %s\n", p);
} else {
ret = 0;
}
break;
case CAPI_CMD_STORE_FLAGS:
if (i & 1) {
ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
} else {
ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
}
CAPI_trace(ctx, "Setting flags to %d\n", i);
break;
case CAPI_CMD_DEBUG_LEVEL:
ctx->debug_level = (int)i;
CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
break;
case CAPI_CMD_DEBUG_FILE:
tmpstr = OPENSSL_strdup(p);
if (tmpstr != NULL) {
ctx->debug_file = tmpstr;
CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
} else {
ret = 0;
}
break;
case CAPI_CMD_KEYTYPE:
ctx->keytype = i;
CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
break;
case CAPI_CMD_SET_CSP_IDX:
ret = capi_ctx_set_provname_idx(ctx, i);
break;
case CAPI_CMD_LIST_OPTIONS:
ctx->dump_flags = i;
break;
case CAPI_CMD_LOOKUP_METHOD:
if (i < 1 || i > 3) {
CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
BIO_free(out);
return 0;
}
ctx->lookup_method = i;
break;
case CAPI_CMD_SET_CSP_NAME:
ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
break;
case CAPI_CMD_SET_CSP_TYPE:
ctx->csptype = i;
break;
default:
CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
ret = 0;
}
BIO_free(out);
return ret;
}
static RSA_METHOD *capi_rsa_method = NULL;
# ifndef OPENSSL_NO_DSA
static DSA_METHOD *capi_dsa_method = NULL;
# endif
static int use_aes_csp = 0;
static const WCHAR rsa_aes_cspname[] =
L"Microsoft Enhanced RSA and AES Cryptographic Provider";
static const WCHAR rsa_enh_cspname[] =
L"Microsoft Enhanced Cryptographic Provider v1.0";
static int capi_init(ENGINE *e)
{
CAPI_CTX *ctx;
const RSA_METHOD *ossl_rsa_meth;
# ifndef OPENSSL_NO_DSA
const DSA_METHOD *ossl_dsa_meth;
# endif
HCRYPTPROV hprov;
if (capi_idx < 0) {
capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
if (capi_idx < 0) {
CAPIerr(CAPI_F_CAPI_INIT, ERR_R_ENGINE_LIB);
goto err;
}
cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
/* Setup RSA_METHOD */
rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
ossl_rsa_meth = RSA_PKCS1_OpenSSL();
if (!RSA_meth_set_pub_enc(capi_rsa_method,
RSA_meth_get_pub_enc(ossl_rsa_meth))
|| !RSA_meth_set_pub_dec(capi_rsa_method,
RSA_meth_get_pub_dec(ossl_rsa_meth))
|| !RSA_meth_set_priv_enc(capi_rsa_method, capi_rsa_priv_enc)
|| !RSA_meth_set_priv_dec(capi_rsa_method, capi_rsa_priv_dec)
|| !RSA_meth_set_mod_exp(capi_rsa_method,
RSA_meth_get_mod_exp(ossl_rsa_meth))
|| !RSA_meth_set_bn_mod_exp(capi_rsa_method,
RSA_meth_get_bn_mod_exp(ossl_rsa_meth))
|| !RSA_meth_set_finish(capi_rsa_method, capi_rsa_free)
|| !RSA_meth_set_sign(capi_rsa_method, capi_rsa_sign)) {
CAPIerr(CAPI_F_CAPI_INIT, ERR_R_RSA_LIB);
goto err;
}
# ifndef OPENSSL_NO_DSA
/* Setup DSA Method */
dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
ossl_dsa_meth = DSA_OpenSSL();
if (!DSA_meth_set_sign(capi_dsa_method, capi_dsa_do_sign)
|| !DSA_meth_set_verify(capi_dsa_method,
DSA_meth_get_verify(ossl_dsa_meth))
|| !DSA_meth_set_finish(capi_dsa_method, capi_dsa_free)
|| !DSA_meth_set_mod_exp(capi_dsa_method,
DSA_meth_get_mod_exp(ossl_dsa_meth))
|| !DSA_meth_set_bn_mod_exp(capi_dsa_method,
DSA_meth_get_bn_mod_exp(ossl_dsa_meth))) {
CAPIerr(CAPI_F_CAPI_INIT, ERR_R_DSA_LIB);
goto err;
}
# endif
}
ctx = capi_ctx_new();
if (ctx == NULL) {
CAPIerr(CAPI_F_CAPI_INIT, ERR_R_CAPI_LIB);
goto err;
}
ENGINE_set_ex_data(e, capi_idx, ctx);
# ifdef OPENSSL_CAPIENG_DIALOG
{
HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
if (cryptui)
ctx->certselectdlg =
(CERTDLG) GetProcAddress(cryptui,
"CryptUIDlgSelectCertificateFromStore");
if (kernel)
ctx->getconswindow =
(GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
if (cryptui && !OPENSSL_isservice())
ctx->client_cert_select = cert_select_dialog;
}
# endif
/* See if there is RSA+AES CSP */
if (CryptAcquireContextW(&hprov, NULL, rsa_aes_cspname, PROV_RSA_AES,
CRYPT_VERIFYCONTEXT)) {
use_aes_csp = 1;
CryptReleaseContext(hprov, 0);
}
return 1;
err:
return 0;
}
static int capi_destroy(ENGINE *e)
{
RSA_meth_free(capi_rsa_method);
capi_rsa_method = NULL;
# ifndef OPENSSL_NO_DSA
DSA_meth_free(capi_dsa_method);
capi_dsa_method = NULL;
# endif
ERR_unload_CAPI_strings();
return 1;
}
static int capi_finish(ENGINE *e)
{
CAPI_CTX *ctx;
ctx = ENGINE_get_ex_data(e, capi_idx);
capi_ctx_free(ctx);
ENGINE_set_ex_data(e, capi_idx, NULL);
return 1;
}
/*
* CryptoAPI key application data. This contains a handle to the private key
* container (for sign operations) and a handle to the key (for decrypt
* operations).
*/
struct CAPI_KEY_st {
/* Associated certificate context (if any) */
PCCERT_CONTEXT pcert;
HCRYPTPROV hprov;
HCRYPTKEY key;
DWORD keyspec;
};
static int bind_capi(ENGINE *e)
{
capi_rsa_method = RSA_meth_new("CryptoAPI RSA method", 0);
if (capi_rsa_method == NULL)
return 0;
# ifndef OPENSSL_NO_DSA
capi_dsa_method = DSA_meth_new("CryptoAPI DSA method", 0);
if (capi_dsa_method == NULL)
goto memerr;
# endif
if (!ENGINE_set_id(e, engine_capi_id)
|| !ENGINE_set_name(e, engine_capi_name)
|| !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
|| !ENGINE_set_init_function(e, capi_init)
|| !ENGINE_set_finish_function(e, capi_finish)
|| !ENGINE_set_destroy_function(e, capi_destroy)
|| !ENGINE_set_RSA(e, capi_rsa_method)
# ifndef OPENSSL_NO_DSA
|| !ENGINE_set_DSA(e, capi_dsa_method)
# endif
|| !ENGINE_set_load_privkey_function(e, capi_load_privkey)
|| !ENGINE_set_load_ssl_client_cert_function(e,
capi_load_ssl_client_cert)
|| !ENGINE_set_cmd_defns(e, capi_cmd_defns)
|| !ENGINE_set_ctrl_function(e, capi_ctrl))
goto memerr;
ERR_load_CAPI_strings();
return 1;
memerr:
RSA_meth_free(capi_rsa_method);
capi_rsa_method = NULL;
# ifndef OPENSSL_NO_DSA
DSA_meth_free(capi_dsa_method);
capi_dsa_method = NULL;
# endif
return 0;
}
# ifndef OPENSSL_NO_DYNAMIC_ENGINE
static int bind_helper(ENGINE *e, const char *id)
{
if (id && (strcmp(id, engine_capi_id) != 0))
return 0;
if (!bind_capi(e))
return 0;
return 1;
}
IMPLEMENT_DYNAMIC_CHECK_FN()
IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
# else
static ENGINE *engine_capi(void)
{
ENGINE *ret = ENGINE_new();
if (ret == NULL)
return NULL;
if (!bind_capi(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
void engine_load_capi_int(void)
{
/* Copied from eng_[openssl|dyn].c */
ENGINE *toadd = engine_capi();
if (!toadd)
return;
ERR_set_mark();
ENGINE_add(toadd);
/*
* If the "add" worked, it gets a structural reference. So either way, we
* release our just-created reference.
*/
ENGINE_free(toadd);
/*
* If the "add" didn't work, it was probably a conflict because it was
* already added (eg. someone calling ENGINE_load_blah then calling
* ENGINE_load_builtin_engines() perhaps).
*/
ERR_pop_to_mark();
}
# endif
static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
{
int i;
/*
* Reverse buffer in place: since this is a keyblob structure that will
* be freed up after conversion anyway it doesn't matter if we change
* it.
*/
for (i = 0; i < binlen / 2; i++) {
unsigned char c;
c = bin[i];
bin[i] = bin[binlen - i - 1];
bin[binlen - i - 1] = c;
}
if (!BN_bin2bn(bin, binlen, bn))
return 0;
return 1;
}
/* Given a CAPI_KEY get an EVP_PKEY structure */
static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
{
unsigned char *pubkey = NULL;
DWORD len;
BLOBHEADER *bh;
RSA *rkey = NULL;
DSA *dkey = NULL;
EVP_PKEY *ret = NULL;
if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
capi_addlasterror();
return NULL;
}
pubkey = OPENSSL_malloc(len);
if (pubkey == NULL)
goto err;
if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
capi_addlasterror();
goto err;
}
bh = (BLOBHEADER *) pubkey;
if (bh->bType != PUBLICKEYBLOB) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
goto err;
}
if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
RSAPUBKEY *rp;
DWORD rsa_modlen;
BIGNUM *e = NULL, *n = NULL;
unsigned char *rsa_modulus;
rp = (RSAPUBKEY *) (bh + 1);
if (rp->magic != 0x31415352) {
char magstr[10];
BIO_snprintf(magstr, 10, "%lx", rp->magic);
CAPIerr(CAPI_F_CAPI_GET_PKEY,
CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
ERR_add_error_data(2, "magic=0x", magstr);
goto err;
}
rsa_modulus = (unsigned char *)(rp + 1);
rkey = RSA_new_method(eng);
if (!rkey) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_RSA_LIB);
goto err;
}
e = BN_new();
n = BN_new();
if (e == NULL || n == NULL) {
BN_free(e);
BN_free(n);
CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_BN_LIB);
goto err;
}
RSA_set0_key(rkey, n, e, NULL);
if (!BN_set_word(e, rp->pubexp)) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_BN_LIB);
goto err;
}
rsa_modlen = rp->bitlen / 8;
if (!lend_tobn(n, rsa_modulus, rsa_modlen)) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_BN_LIB);
goto err;
}
RSA_set_ex_data(rkey, rsa_capi_idx, key);
if ((ret = EVP_PKEY_new()) == NULL) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_EVP_LIB);
goto err;
}
EVP_PKEY_assign_RSA(ret, rkey);
rkey = NULL;
# ifndef OPENSSL_NO_DSA
} else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
DSSPUBKEY *dp;
DWORD dsa_plen;
unsigned char *btmp;
BIGNUM *p, *q, *g, *pub_key;
dp = (DSSPUBKEY *) (bh + 1);
if (dp->magic != 0x31535344) {
char magstr[10];
BIO_snprintf(magstr, 10, "%lx", dp->magic);
CAPIerr(CAPI_F_CAPI_GET_PKEY,
CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
ERR_add_error_data(2, "magic=0x", magstr);
goto err;
}
dsa_plen = dp->bitlen / 8;
btmp = (unsigned char *)(dp + 1);
dkey = DSA_new_method(eng);
if (!dkey) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_DSA_LIB);
goto err;
}
p = BN_new();
q = BN_new();
g = BN_new();
pub_key = BN_new();
if (p == NULL || q == NULL || g == NULL || pub_key == NULL) {
BN_free(p);
BN_free(q);
BN_free(g);
BN_free(pub_key);
CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_BN_LIB);
goto err;
}
DSA_set0_pqg(dkey, p, q, g);
DSA_set0_key(dkey, pub_key, NULL);
if (!lend_tobn(p, btmp, dsa_plen)) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_CAPI_LIB);
goto err;
}
btmp += dsa_plen;
if (!lend_tobn(q, btmp, 20)) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_CAPI_LIB);
goto err;
}
btmp += 20;
if (!lend_tobn(g, btmp, dsa_plen)) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_CAPI_LIB);
goto err;
}
btmp += dsa_plen;
if (!lend_tobn(pub_key, btmp, dsa_plen)) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_CAPI_LIB);
goto err;
}
btmp += dsa_plen;
DSA_set_ex_data(dkey, dsa_capi_idx, key);
if ((ret = EVP_PKEY_new()) == NULL) {
CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_EVP_LIB);
goto err;
}
EVP_PKEY_assign_DSA(ret, dkey);
dkey = NULL;
# endif
} else {
char algstr[10];
BIO_snprintf(algstr, 10, "%ux", bh->aiKeyAlg);
CAPIerr(CAPI_F_CAPI_GET_PKEY,
CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
goto err;
}
err:
OPENSSL_free(pubkey);
if (!ret) {
RSA_free(rkey);
# ifndef OPENSSL_NO_DSA
DSA_free(dkey);
# endif
}
return ret;
}
static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
UI_METHOD *ui_method, void *callback_data)
{
CAPI_CTX *ctx;
CAPI_KEY *key;
EVP_PKEY *ret;
ctx = ENGINE_get_ex_data(eng, capi_idx);
if (!ctx) {
CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
return NULL;
}
key = capi_find_key(ctx, key_id);
if (!key)
return NULL;
ret = capi_get_pkey(eng, key);
if (!ret)
capi_free_key(key);
return ret;
}
/* CryptoAPI RSA operations */
int capi_rsa_priv_enc(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
return -1;
}
int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
{
ALG_ID alg;
HCRYPTHASH hash;
DWORD slen;
unsigned int i;
int ret = -1;
CAPI_KEY *capi_key;
CAPI_CTX *ctx;
ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
if (!capi_key) {
CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
return -1;
}
/* Convert the signature type to a CryptoAPI algorithm ID */
switch (dtype) {
case NID_sha256:
alg = CALG_SHA_256;
break;
case NID_sha384:
alg = CALG_SHA_384;
break;
case NID_sha512:
alg = CALG_SHA_512;
break;
case NID_sha1:
alg = CALG_SHA1;
break;
case NID_md5:
alg = CALG_MD5;
break;
case NID_md5_sha1:
alg = CALG_SSL3_SHAMD5;
break;
default:
{
char algstr[10];
BIO_snprintf(algstr, 10, "%x", dtype);
CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
ERR_add_error_data(2, "NID=0x", algstr);
return -1;
}
}
/* Create the hash object */
if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
capi_addlasterror();
return -1;
}
/* Set the hash value to the value passed */
if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
capi_addlasterror();
goto err;
}
/* Finally sign it */
slen = RSA_size(rsa);
if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
capi_addlasterror();
goto err;
} else {
ret = 1;
/* Inplace byte reversal of signature */
for (i = 0; i < slen / 2; i++) {
unsigned char c;
c = sigret[i];
sigret[i] = sigret[slen - i - 1];
sigret[slen - i - 1] = c;
}
*siglen = slen;
}
/* Now cleanup */
err:
CryptDestroyHash(hash);
return ret;
}
int capi_rsa_priv_dec(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
int i;
unsigned char *tmpbuf;
CAPI_KEY *capi_key;
CAPI_CTX *ctx;
DWORD flags = 0;
DWORD dlen;
if (flen <= 0)
return flen;
ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
if (!capi_key) {
CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
return -1;
}
switch (padding) {
case RSA_PKCS1_PADDING:
/* Nothing to do */
break;
#ifdef CRYPT_DECRYPT_RSA_NO_PADDING_CHECK
case RSA_NO_PADDING:
flags = CRYPT_DECRYPT_RSA_NO_PADDING_CHECK;
break;
#endif
default:
{
char errstr[10];
BIO_snprintf(errstr, 10, "%d", padding);
CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
ERR_add_error_data(2, "padding=", errstr);
return -1;
}
}
/* Create temp reverse order version of input */
if ((tmpbuf = OPENSSL_malloc(flen)) == NULL)
return -1;
for (i = 0; i < flen; i++)
tmpbuf[flen - i - 1] = from[i];
/* Finally decrypt it */
dlen = flen;
if (!CryptDecrypt(capi_key->key, 0, TRUE, flags, tmpbuf, &dlen)) {
CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
capi_addlasterror();
OPENSSL_cleanse(tmpbuf, dlen);
OPENSSL_free(tmpbuf);
return -1;
} else {
memcpy(to, tmpbuf, (flen = (int)dlen));
}
OPENSSL_cleanse(tmpbuf, flen);
OPENSSL_free(tmpbuf);
return flen;
}
static int capi_rsa_free(RSA *rsa)
{
CAPI_KEY *capi_key;
capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
capi_free_key(capi_key);
RSA_set_ex_data(rsa, rsa_capi_idx, 0);
return 1;
}
# ifndef OPENSSL_NO_DSA
/* CryptoAPI DSA operations */
static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
DSA *dsa)
{
HCRYPTHASH hash;
DWORD slen;
DSA_SIG *ret = NULL;
CAPI_KEY *capi_key;
CAPI_CTX *ctx;
unsigned char csigbuf[40];
ctx = ENGINE_get_ex_data(DSA_get0_engine(dsa), capi_idx);
CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
if (!capi_key) {
CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
return NULL;
}
if (dlen != 20) {
CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
return NULL;
}
/* Create the hash object */
if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
capi_addlasterror();
return NULL;
}
/* Set the hash value to the value passed */
if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
capi_addlasterror();
goto err;
}
/* Finally sign it */
slen = sizeof(csigbuf);
if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
capi_addlasterror();
goto err;
} else {
BIGNUM *r = BN_new(), *s = BN_new();
if (r == NULL || s == NULL
|| !lend_tobn(r, csigbuf, 20)
|| !lend_tobn(s, csigbuf + 20, 20)
|| (ret = DSA_SIG_new()) == NULL) {
BN_free(r); /* BN_free checks for BIGNUM * being NULL */
BN_free(s);
goto err;
}
DSA_SIG_set0(ret, r, s);
}
/* Now cleanup */
err:
OPENSSL_cleanse(csigbuf, 40);
CryptDestroyHash(hash);
return ret;
}
static int capi_dsa_free(DSA *dsa)
{
CAPI_KEY *capi_key;
capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
capi_free_key(capi_key);
DSA_set_ex_data(dsa, dsa_capi_idx, 0);
return 1;
}
# endif
static void capi_vtrace(CAPI_CTX *ctx, int level, char *format,
va_list argptr)
{
BIO *out;
if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
return;
out = BIO_new_file(ctx->debug_file, "a+");
if (out == NULL) {
CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
return;
}
BIO_vprintf(out, format, argptr);
BIO_free(out);
}
static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
{
va_list args;
va_start(args, format);
capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
va_end(args);
}
static void capi_addlasterror(void)
{
capi_adderror(GetLastError());
}
static void capi_adderror(DWORD err)
{
char errstr[10];
BIO_snprintf(errstr, 10, "%lX", err);
ERR_add_error_data(2, "Error code= 0x", errstr);
}
static char *wide_to_asc(LPCWSTR wstr)
{
char *str;
int len_0, sz;
size_t len_1;
if (!wstr)
return NULL;
len_1 = wcslen(wstr) + 1;
if (len_1 > INT_MAX) {
CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_FUNCTION_NOT_SUPPORTED);
return NULL;
}
len_0 = (int)len_1; /* WideCharToMultiByte expects int */
sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
if (!sz) {
CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
return NULL;
}
str = OPENSSL_malloc(sz);
if (str == NULL)
return NULL;
if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
OPENSSL_free(str);
CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
return NULL;
}
return str;
}
static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype,
DWORD idx)
{
DWORD len, err;
LPTSTR name;
CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
err = GetLastError();
if (err == ERROR_NO_MORE_ITEMS)
return 2;
CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
capi_adderror(err);
return 0;
}
name = OPENSSL_malloc(len);
if (name == NULL)
return 0;
if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
err = GetLastError();
OPENSSL_free(name);
if (err == ERROR_NO_MORE_ITEMS)
return 2;
CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
capi_adderror(err);
return 0;
}
if (sizeof(TCHAR) != sizeof(char)) {
*pname = wide_to_asc((WCHAR *)name);
OPENSSL_free(name);
if (*pname == NULL)
return 0;
} else {
*pname = (char *)name;
}
CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
*ptype);
return 1;
}
static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
{
DWORD idx, ptype;
int ret;
LPSTR provname = NULL;
CAPI_trace(ctx, "capi_list_providers\n");
BIO_printf(out, "Available CSPs:\n");
for (idx = 0;; idx++) {
ret = capi_get_provname(ctx, &provname, &ptype, idx);
if (ret == 2)
break;
if (ret == 0)
break;
BIO_printf(out, "%lu. %s, type %lu\n", idx, provname, ptype);
OPENSSL_free(provname);
}
return 1;
}
static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
{
int ret = 1;
HCRYPTPROV hprov;
DWORD err, idx, flags, buflen = 0, clen;
LPSTR cname;
LPWSTR cspname = NULL;
CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
ctx->csptype);
if (ctx->cspname != NULL) {
if ((clen = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
NULL, 0))) {
cspname = alloca(clen * sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
clen);
}
if (cspname == NULL) {
CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
capi_addlasterror();
return 0;
}
}
if (!CryptAcquireContextW(&hprov, NULL, cspname, ctx->csptype,
CRYPT_VERIFYCONTEXT)) {
CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
capi_addlasterror();
return 0;
}
if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen,
CRYPT_FIRST)) {
CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
capi_addlasterror();
CryptReleaseContext(hprov, 0);
return 0;
}
CAPI_trace(ctx, "Got max container len %d\n", buflen);
if (buflen == 0)
buflen = 1024;
cname = OPENSSL_malloc(buflen);
if (cname == NULL)
goto err;
for (idx = 0;; idx++) {
clen = buflen;
cname[0] = 0;
if (idx == 0)
flags = CRYPT_FIRST;
else
flags = 0;
if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, (BYTE *)cname,
&clen, flags)) {
err = GetLastError();
if (err == ERROR_NO_MORE_ITEMS)
goto done;
CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
capi_adderror(err);
goto err;
}
CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
cname, clen, idx, flags);
if (!cname[0] && (clen == buflen)) {
CAPI_trace(ctx, "Enumerate bug: using workaround\n");
goto done;
}
BIO_printf(out, "%lu. %s\n", idx, cname);
}
err:
ret = 0;
done:
OPENSSL_free(cname);
CryptReleaseContext(hprov, 0);
return ret;
}
static CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx,
PCCERT_CONTEXT cert)
{
DWORD len;
CRYPT_KEY_PROV_INFO *pinfo;
if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID,
NULL, &len))
return NULL;
pinfo = OPENSSL_malloc(len);
if (pinfo == NULL)
return NULL;
if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID,
pinfo, &len)) {
CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
capi_addlasterror();
OPENSSL_free(pinfo);
return NULL;
}
return pinfo;
}
static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out,
CRYPT_KEY_PROV_INFO *pinfo)
{
char *provname = NULL, *contname = NULL;
if (pinfo == NULL) {
BIO_printf(out, " No Private Key\n");
return;
}
provname = wide_to_asc(pinfo->pwszProvName);
contname = wide_to_asc(pinfo->pwszContainerName);
if (provname == NULL || contname == NULL)
goto err;
BIO_printf(out, " Private Key Info:\n");
BIO_printf(out, " Provider Name: %s, Provider Type %lu\n", provname,
pinfo->dwProvType);
BIO_printf(out, " Container Name: %s, Key Type %lu\n", contname,
pinfo->dwKeySpec);
err:
OPENSSL_free(provname);
OPENSSL_free(contname);
}
static char *capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
{
LPWSTR wfname;
DWORD dlen;
CAPI_trace(ctx, "capi_cert_get_fname\n");
if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID,
NULL, &dlen))
return NULL;
wfname = OPENSSL_malloc(dlen);
if (wfname == NULL)
return NULL;
if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID,
wfname, &dlen)) {
char *fname = wide_to_asc(wfname);
OPENSSL_free(wfname);
return fname;
}
CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
capi_addlasterror();
OPENSSL_free(wfname);
return NULL;
}
static void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
{
X509 *x;
const unsigned char *p;
unsigned long flags = ctx->dump_flags;
if (flags & CAPI_DMP_FNAME) {
char *fname;
fname = capi_cert_get_fname(ctx, cert);
if (fname) {
BIO_printf(out, " Friendly Name \"%s\"\n", fname);
OPENSSL_free(fname);
} else {
BIO_printf(out, " <No Friendly Name>\n");
}
}
p = cert->pbCertEncoded;
x = d2i_X509(NULL, &p, cert->cbCertEncoded);
if (!x)
BIO_printf(out, " <Can't parse certificate>\n");
if (flags & CAPI_DMP_SUMMARY) {
BIO_printf(out, " Subject: ");
X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
BIO_printf(out, "\n Issuer: ");
X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
BIO_printf(out, "\n");
}
if (flags & CAPI_DMP_FULL)
X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
if (flags & CAPI_DMP_PKEYINFO) {
CRYPT_KEY_PROV_INFO *pinfo;
pinfo = capi_get_prov_info(ctx, cert);
capi_dump_prov_info(ctx, out, pinfo);
OPENSSL_free(pinfo);
}
if (flags & CAPI_DMP_PEM)
PEM_write_bio_X509(out, x);
X509_free(x);
}
static HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
{
HCERTSTORE hstore;
if (!storename)
storename = ctx->storename;
if (!storename)
storename = "MY";
CAPI_trace(ctx, "Opening certificate store %s\n", storename);
hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
ctx->store_flags, storename);
if (!hstore) {
CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
capi_addlasterror();
}
return hstore;
}
int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
{
char *storename;
int idx;
int ret = 1;
HCERTSTORE hstore;
PCCERT_CONTEXT cert = NULL;
storename = ctx->storename;
if (!storename)
storename = "MY";
CAPI_trace(ctx, "Listing certs for store %s\n", storename);
hstore = capi_open_store(ctx, storename);
if (!hstore)
return 0;
if (id) {
cert = capi_find_cert(ctx, id, hstore);
if (!cert) {
ret = 0;
goto err;
}
capi_dump_cert(ctx, out, cert);
CertFreeCertificateContext(cert);
} else {
for (idx = 0;; idx++) {
cert = CertEnumCertificatesInStore(hstore, cert);
if (!cert)
break;
BIO_printf(out, "Certificate %d\n", idx);
capi_dump_cert(ctx, out, cert);
}
}
err:
CertCloseStore(hstore, 0);
return ret;
}
static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id,
HCERTSTORE hstore)
{
PCCERT_CONTEXT cert = NULL;
char *fname = NULL;
int match;
switch (ctx->lookup_method) {
case CAPI_LU_SUBSTR:
return CertFindCertificateInStore(hstore, X509_ASN_ENCODING, 0,
CERT_FIND_SUBJECT_STR_A, id, NULL);
case CAPI_LU_FNAME:
for (;;) {
cert = CertEnumCertificatesInStore(hstore, cert);
if (!cert)
return NULL;
fname = capi_cert_get_fname(ctx, cert);
if (fname) {
if (strcmp(fname, id))
match = 0;
else
match = 1;
OPENSSL_free(fname);
if (match)
return cert;
}
}
default:
return NULL;
}
}
static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const WCHAR *contname,
const WCHAR *provname, DWORD ptype,
DWORD keyspec)
{
DWORD dwFlags = 0;
CAPI_KEY *key = OPENSSL_malloc(sizeof(*key));
if (key == NULL)
return NULL;
/* If PROV_RSA_AES supported use it instead */
if (ptype == PROV_RSA_FULL && use_aes_csp &&
wcscmp(provname, rsa_enh_cspname) == 0) {
provname = rsa_aes_cspname;
ptype = PROV_RSA_AES;
}
if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
/*
* above 'if' is [complementary] copy from CAPI_trace and serves
* as optimization to minimize [below] malloc-ations
*/
char *_contname = wide_to_asc(contname);
char *_provname = wide_to_asc(provname);
CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
_contname, _provname, ptype);
OPENSSL_free(_provname);
OPENSSL_free(_contname);
}
if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
dwFlags = CRYPT_MACHINE_KEYSET;
if (!CryptAcquireContextW(&key->hprov, contname, provname, ptype,
dwFlags)) {
CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
capi_addlasterror();
goto err;
}
if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
capi_addlasterror();
CryptReleaseContext(key->hprov, 0);
goto err;
}
key->keyspec = keyspec;
key->pcert = NULL;
return key;
err:
OPENSSL_free(key);
return NULL;
}
static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
{
CAPI_KEY *key = NULL;
CRYPT_KEY_PROV_INFO *pinfo = NULL;
pinfo = capi_get_prov_info(ctx, cert);
if (pinfo != NULL)
key = capi_get_key(ctx, pinfo->pwszContainerName, pinfo->pwszProvName,
pinfo->dwProvType, pinfo->dwKeySpec);
OPENSSL_free(pinfo);
return key;
}
CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
{
PCCERT_CONTEXT cert;
HCERTSTORE hstore;
CAPI_KEY *key = NULL;
switch (ctx->lookup_method) {
case CAPI_LU_SUBSTR:
case CAPI_LU_FNAME:
hstore = capi_open_store(ctx, NULL);
if (!hstore)
return NULL;
cert = capi_find_cert(ctx, id, hstore);
if (cert) {
key = capi_get_cert_key(ctx, cert);
CertFreeCertificateContext(cert);
}
CertCloseStore(hstore, 0);
break;
case CAPI_LU_CONTNAME:
{
WCHAR *contname, *provname;
DWORD len;
if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
(contname = alloca(len * sizeof(WCHAR)),
MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
(len = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
NULL, 0)) &&
(provname = alloca(len * sizeof(WCHAR)),
MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
provname, len)))
key = capi_get_key(ctx, contname, provname,
ctx->csptype, ctx->keytype);
}
break;
}
return key;
}
void capi_free_key(CAPI_KEY *key)
{
if (!key)
return;
CryptDestroyKey(key->key);
CryptReleaseContext(key->hprov, 0);
if (key->pcert)
CertFreeCertificateContext(key->pcert);
OPENSSL_free(key);
}
/* Initialize a CAPI_CTX structure */
static CAPI_CTX *capi_ctx_new(void)
{
CAPI_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
if (ctx == NULL)
return NULL;
ctx->csptype = PROV_RSA_FULL;
ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
ctx->keytype = AT_KEYEXCHANGE;
ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
ctx->lookup_method = CAPI_LU_SUBSTR;
ctx->client_cert_select = cert_select_simple;
return ctx;
}
static void capi_ctx_free(CAPI_CTX *ctx)
{
CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
if (!ctx)
return;
OPENSSL_free(ctx->cspname);
OPENSSL_free(ctx->debug_file);
OPENSSL_free(ctx->storename);
OPENSSL_free(ctx->ssl_client_store);
OPENSSL_free(ctx);
}
static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type,
int check)
{
LPSTR tmpcspname;
CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
if (check) {
HCRYPTPROV hprov;
LPWSTR name = NULL;
DWORD len;
if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
name = alloca(len * sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
}
if (name == NULL || !CryptAcquireContextW(&hprov, NULL, name, type,
CRYPT_VERIFYCONTEXT)) {
CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
capi_addlasterror();
return 0;
}
CryptReleaseContext(hprov, 0);
}
tmpcspname = OPENSSL_strdup(pname);
if (tmpcspname == NULL)
return 0;
OPENSSL_free(ctx->cspname);
ctx->cspname = tmpcspname;
ctx->csptype = type;
return 1;
}
static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
{
LPSTR pname;
DWORD type;
int res;
if (capi_get_provname(ctx, &pname, &type, idx) != 1)
return 0;
res = capi_ctx_set_provname(ctx, pname, type, 0);
OPENSSL_free(pname);
return res;
}
static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
{
int i;
X509_NAME *nm;
/* Special case: empty list: match anything */
if (sk_X509_NAME_num(ca_dn) <= 0)
return 1;
for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
nm = sk_X509_NAME_value(ca_dn, i);
if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
return 1;
}
return 0;
}
static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
EVP_PKEY **pkey, STACK_OF(X509) **pother,
UI_METHOD *ui_method,
void *callback_data)
{
STACK_OF(X509) *certs = NULL;
X509 *x;
char *storename;
const unsigned char *p;
int i, client_cert_idx;
HCERTSTORE hstore;
PCCERT_CONTEXT cert = NULL, excert = NULL;
CAPI_CTX *ctx;
CAPI_KEY *key;
ctx = ENGINE_get_ex_data(e, capi_idx);
*pcert = NULL;
*pkey = NULL;
storename = ctx->ssl_client_store;
if (!storename)
storename = "MY";
hstore = capi_open_store(ctx, storename);
if (!hstore)
return 0;
/* Enumerate all certificates collect any matches */
for (i = 0;; i++) {
cert = CertEnumCertificatesInStore(hstore, cert);
if (!cert)
break;
p = cert->pbCertEncoded;
x = d2i_X509(NULL, &p, cert->cbCertEncoded);
if (!x) {
CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
continue;
}
if (cert_issuer_match(ca_dn, x)
&& X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
key = capi_get_cert_key(ctx, cert);
if (!key) {
X509_free(x);
continue;
}
/*
* Match found: attach extra data to it so we can retrieve the
* key later.
*/
excert = CertDuplicateCertificateContext(cert);
key->pcert = excert;
X509_set_ex_data(x, cert_capi_idx, key);
if (!certs)
certs = sk_X509_new_null();
sk_X509_push(certs, x);
} else {
X509_free(x);
}
}
if (cert)
CertFreeCertificateContext(cert);
if (hstore)
CertCloseStore(hstore, 0);
if (!certs)
return 0;
/* Select the appropriate certificate */
client_cert_idx = ctx->client_cert_select(e, ssl, certs);
/* Set the selected certificate and free the rest */
for (i = 0; i < sk_X509_num(certs); i++) {
x = sk_X509_value(certs, i);
if (i == client_cert_idx)
*pcert = x;
else {
key = X509_get_ex_data(x, cert_capi_idx);
capi_free_key(key);
X509_free(x);
}
}
sk_X509_free(certs);
if (*pcert == NULL)
return 0;
/* Setup key for selected certificate */
key = X509_get_ex_data(*pcert, cert_capi_idx);
*pkey = capi_get_pkey(e, key);
X509_set_ex_data(*pcert, cert_capi_idx, NULL);
return 1;
}
/* Simple client cert selection function: always select first */
static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
{
return 0;
}
# ifdef OPENSSL_CAPIENG_DIALOG
/*
* More complex cert selection function, using standard function
* CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
*/
/*
* Definitions which are in cryptuiapi.h but this is not present in older
* versions of headers.
*/
# ifndef CRYPTUI_SELECT_LOCATION_COLUMN
# define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
# define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
# endif
# define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
# define dlg_prompt L"Select a certificate to use for authentication"
# define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
|CRYPTUI_SELECT_INTENDEDUSE_COLUMN
static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
{
X509 *x;
HCERTSTORE dstore;
PCCERT_CONTEXT cert;
CAPI_CTX *ctx;
CAPI_KEY *key;
HWND hwnd;
int i, idx = -1;
if (sk_X509_num(certs) == 1)
return 0;
ctx = ENGINE_get_ex_data(e, capi_idx);
/* Create an in memory store of certificates */
dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
CERT_STORE_CREATE_NEW_FLAG, NULL);
if (!dstore) {
CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
capi_addlasterror();
goto err;
}
/* Add all certificates to store */
for (i = 0; i < sk_X509_num(certs); i++) {
x = sk_X509_value(certs, i);
key = X509_get_ex_data(x, cert_capi_idx);
if (!CertAddCertificateContextToStore(dstore, key->pcert,
CERT_STORE_ADD_NEW, NULL)) {
CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
capi_addlasterror();
goto err;
}
}
hwnd = GetForegroundWindow();
if (!hwnd)
hwnd = GetActiveWindow();
if (!hwnd && ctx->getconswindow)
hwnd = ctx->getconswindow();
/* Call dialog to select one */
cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
dlg_columns, 0, NULL);
/* Find matching cert from list */
if (cert) {
for (i = 0; i < sk_X509_num(certs); i++) {
x = sk_X509_value(certs, i);
key = X509_get_ex_data(x, cert_capi_idx);
if (CertCompareCertificate
(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
key->pcert->pCertInfo)) {
idx = i;
break;
}
}
}
err:
if (dstore)
CertCloseStore(dstore, 0);
return idx;
}
# endif
#else /* !__COMPILE_CAPIENG */
# include <openssl/engine.h>
# ifndef OPENSSL_NO_DYNAMIC_ENGINE
OPENSSL_EXPORT
int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
OPENSSL_EXPORT
int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
{
return 0;
}
IMPLEMENT_DYNAMIC_CHECK_FN()
# else
void engine_load_capi_int(void);
void engine_load_capi_int(void)
{
}
# endif
#endif
|
./openssl/engines/e_padlock.c | /*
* Copyright 2004-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* This file uses the low level AES and engine functions (which are deprecated
* for non-internal use) in order to implement the padlock engine AES ciphers.
*/
#define OPENSSL_SUPPRESS_DEPRECATED
#include <stdio.h>
#include <string.h>
#include <openssl/opensslconf.h>
#include <openssl/crypto.h>
#include <openssl/engine.h>
#include <openssl/evp.h>
#include <openssl/aes.h>
#include <openssl/rand.h>
#include <openssl/err.h>
#include <openssl/modes.h>
#ifndef OPENSSL_NO_PADLOCKENG
/*
* VIA PadLock AES is available *ONLY* on some x86 CPUs. Not only that it
* doesn't exist elsewhere, but it even can't be compiled on other platforms!
*/
# undef COMPILE_PADLOCKENG
# if defined(PADLOCK_ASM)
# define COMPILE_PADLOCKENG
# ifdef OPENSSL_NO_DYNAMIC_ENGINE
static ENGINE *ENGINE_padlock(void);
# endif
# endif
# ifdef OPENSSL_NO_DYNAMIC_ENGINE
void engine_load_padlock_int(void);
void engine_load_padlock_int(void)
{
/* On non-x86 CPUs it just returns. */
# ifdef COMPILE_PADLOCKENG
ENGINE *toadd = ENGINE_padlock();
if (!toadd)
return;
ERR_set_mark();
ENGINE_add(toadd);
/*
* If the "add" worked, it gets a structural reference. So either way, we
* release our just-created reference.
*/
ENGINE_free(toadd);
/*
* If the "add" didn't work, it was probably a conflict because it was
* already added (eg. someone calling ENGINE_load_blah then calling
* ENGINE_load_builtin_engines() perhaps).
*/
ERR_pop_to_mark();
# endif
}
# endif
# ifdef COMPILE_PADLOCKENG
/* Function for ENGINE detection and control */
static int padlock_available(void);
static int padlock_init(ENGINE *e);
/* RNG Stuff */
static RAND_METHOD padlock_rand;
/* Cipher Stuff */
static int padlock_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
const int **nids, int nid);
/* Engine names */
static const char *padlock_id = "padlock";
static char padlock_name[100];
/* Available features */
static int padlock_use_ace = 0; /* Advanced Cryptography Engine */
static int padlock_use_rng = 0; /* Random Number Generator */
/* ===== Engine "management" functions ===== */
/* Prepare the ENGINE structure for registration */
static int padlock_bind_helper(ENGINE *e)
{
/* Check available features */
padlock_available();
/*
* RNG is currently disabled for reasons discussed in commentary just
* before padlock_rand_bytes function.
*/
padlock_use_rng = 0;
/* Generate a nice engine name with available features */
BIO_snprintf(padlock_name, sizeof(padlock_name),
"VIA PadLock (%s, %s)",
padlock_use_rng ? "RNG" : "no-RNG",
padlock_use_ace ? "ACE" : "no-ACE");
/* Register everything or return with an error */
if (!ENGINE_set_id(e, padlock_id) ||
!ENGINE_set_name(e, padlock_name) ||
!ENGINE_set_init_function(e, padlock_init) ||
(padlock_use_ace && !ENGINE_set_ciphers(e, padlock_ciphers)) ||
(padlock_use_rng && !ENGINE_set_RAND(e, &padlock_rand))) {
return 0;
}
/* Everything looks good */
return 1;
}
# ifdef OPENSSL_NO_DYNAMIC_ENGINE
/* Constructor */
static ENGINE *ENGINE_padlock(void)
{
ENGINE *eng = ENGINE_new();
if (eng == NULL) {
return NULL;
}
if (!padlock_bind_helper(eng)) {
ENGINE_free(eng);
return NULL;
}
return eng;
}
# endif
/* Check availability of the engine */
static int padlock_init(ENGINE *e)
{
return (padlock_use_rng || padlock_use_ace);
}
# ifndef AES_ASM
static int padlock_aes_set_encrypt_key(const unsigned char *userKey,
const int bits,
AES_KEY *key);
static int padlock_aes_set_decrypt_key(const unsigned char *userKey,
const int bits,
AES_KEY *key);
# define AES_ASM
# define AES_set_encrypt_key padlock_aes_set_encrypt_key
# define AES_set_decrypt_key padlock_aes_set_decrypt_key
# include "../crypto/aes/aes_core.c"
# endif
/*
* This stuff is needed if this ENGINE is being compiled into a
* self-contained shared-library.
*/
# ifndef OPENSSL_NO_DYNAMIC_ENGINE
static int padlock_bind_fn(ENGINE *e, const char *id)
{
if (id && (strcmp(id, padlock_id) != 0)) {
return 0;
}
if (!padlock_bind_helper(e)) {
return 0;
}
return 1;
}
IMPLEMENT_DYNAMIC_CHECK_FN()
IMPLEMENT_DYNAMIC_BIND_FN(padlock_bind_fn)
# endif /* !OPENSSL_NO_DYNAMIC_ENGINE */
/* ===== Here comes the "real" engine ===== */
/* Some AES-related constants */
# define AES_BLOCK_SIZE 16
# define AES_KEY_SIZE_128 16
# define AES_KEY_SIZE_192 24
# define AES_KEY_SIZE_256 32
/*
* Here we store the status information relevant to the current context.
*/
/*
* BIG FAT WARNING: Inline assembler in PADLOCK_XCRYPT_ASM() depends on
* the order of items in this structure. Don't blindly modify, reorder,
* etc!
*/
struct padlock_cipher_data {
unsigned char iv[AES_BLOCK_SIZE]; /* Initialization vector */
union {
unsigned int pad[4];
struct {
int rounds:4;
int dgst:1; /* n/a in C3 */
int align:1; /* n/a in C3 */
int ciphr:1; /* n/a in C3 */
unsigned int keygen:1;
int interm:1;
unsigned int encdec:1;
int ksize:2;
} b;
} cword; /* Control word */
AES_KEY ks; /* Encryption key */
};
/* Interface to assembler module */
unsigned int padlock_capability(void);
void padlock_key_bswap(AES_KEY *key);
void padlock_verify_context(struct padlock_cipher_data *ctx);
void padlock_reload_key(void);
void padlock_aes_block(void *out, const void *inp,
struct padlock_cipher_data *ctx);
int padlock_ecb_encrypt(void *out, const void *inp,
struct padlock_cipher_data *ctx, size_t len);
int padlock_cbc_encrypt(void *out, const void *inp,
struct padlock_cipher_data *ctx, size_t len);
int padlock_cfb_encrypt(void *out, const void *inp,
struct padlock_cipher_data *ctx, size_t len);
int padlock_ofb_encrypt(void *out, const void *inp,
struct padlock_cipher_data *ctx, size_t len);
int padlock_ctr32_encrypt(void *out, const void *inp,
struct padlock_cipher_data *ctx, size_t len);
int padlock_xstore(void *out, int edx);
void padlock_sha1_oneshot(void *ctx, const void *inp, size_t len);
void padlock_sha1(void *ctx, const void *inp, size_t len);
void padlock_sha256_oneshot(void *ctx, const void *inp, size_t len);
void padlock_sha256(void *ctx, const void *inp, size_t len);
/*
* Load supported features of the CPU to see if the PadLock is available.
*/
static int padlock_available(void)
{
unsigned int edx = padlock_capability();
/* Fill up some flags */
padlock_use_ace = ((edx & (0x3 << 6)) == (0x3 << 6));
padlock_use_rng = ((edx & (0x3 << 2)) == (0x3 << 2));
return padlock_use_ace + padlock_use_rng;
}
/* ===== AES encryption/decryption ===== */
# if defined(NID_aes_128_cfb128) && ! defined (NID_aes_128_cfb)
# define NID_aes_128_cfb NID_aes_128_cfb128
# endif
# if defined(NID_aes_128_ofb128) && ! defined (NID_aes_128_ofb)
# define NID_aes_128_ofb NID_aes_128_ofb128
# endif
# if defined(NID_aes_192_cfb128) && ! defined (NID_aes_192_cfb)
# define NID_aes_192_cfb NID_aes_192_cfb128
# endif
# if defined(NID_aes_192_ofb128) && ! defined (NID_aes_192_ofb)
# define NID_aes_192_ofb NID_aes_192_ofb128
# endif
# if defined(NID_aes_256_cfb128) && ! defined (NID_aes_256_cfb)
# define NID_aes_256_cfb NID_aes_256_cfb128
# endif
# if defined(NID_aes_256_ofb128) && ! defined (NID_aes_256_ofb)
# define NID_aes_256_ofb NID_aes_256_ofb128
# endif
/* List of supported ciphers. */
static const int padlock_cipher_nids[] = {
NID_aes_128_ecb,
NID_aes_128_cbc,
NID_aes_128_cfb,
NID_aes_128_ofb,
NID_aes_128_ctr,
NID_aes_192_ecb,
NID_aes_192_cbc,
NID_aes_192_cfb,
NID_aes_192_ofb,
NID_aes_192_ctr,
NID_aes_256_ecb,
NID_aes_256_cbc,
NID_aes_256_cfb,
NID_aes_256_ofb,
NID_aes_256_ctr
};
static int padlock_cipher_nids_num = (sizeof(padlock_cipher_nids) /
sizeof(padlock_cipher_nids[0]));
/* Function prototypes ... */
static int padlock_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc);
# define NEAREST_ALIGNED(ptr) ( (unsigned char *)(ptr) + \
( (0x10 - ((size_t)(ptr) & 0x0F)) & 0x0F ) )
# define ALIGNED_CIPHER_DATA(ctx) ((struct padlock_cipher_data *)\
NEAREST_ALIGNED(EVP_CIPHER_CTX_get_cipher_data(ctx)))
static int
padlock_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
const unsigned char *in_arg, size_t nbytes)
{
return padlock_ecb_encrypt(out_arg, in_arg,
ALIGNED_CIPHER_DATA(ctx), nbytes);
}
static int
padlock_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
const unsigned char *in_arg, size_t nbytes)
{
struct padlock_cipher_data *cdata = ALIGNED_CIPHER_DATA(ctx);
int ret;
memcpy(cdata->iv, EVP_CIPHER_CTX_iv(ctx), AES_BLOCK_SIZE);
if ((ret = padlock_cbc_encrypt(out_arg, in_arg, cdata, nbytes)))
memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), cdata->iv, AES_BLOCK_SIZE);
return ret;
}
static int
padlock_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
const unsigned char *in_arg, size_t nbytes)
{
struct padlock_cipher_data *cdata = ALIGNED_CIPHER_DATA(ctx);
size_t chunk;
if ((chunk = EVP_CIPHER_CTX_get_num(ctx))) { /* borrow chunk variable */
unsigned char *ivp = EVP_CIPHER_CTX_iv_noconst(ctx);
if (chunk >= AES_BLOCK_SIZE)
return 0; /* bogus value */
if (EVP_CIPHER_CTX_is_encrypting(ctx))
while (chunk < AES_BLOCK_SIZE && nbytes != 0) {
ivp[chunk] = *(out_arg++) = *(in_arg++) ^ ivp[chunk];
chunk++, nbytes--;
} else
while (chunk < AES_BLOCK_SIZE && nbytes != 0) {
unsigned char c = *(in_arg++);
*(out_arg++) = c ^ ivp[chunk];
ivp[chunk++] = c, nbytes--;
}
EVP_CIPHER_CTX_set_num(ctx, chunk % AES_BLOCK_SIZE);
}
if (nbytes == 0)
return 1;
memcpy(cdata->iv, EVP_CIPHER_CTX_iv(ctx), AES_BLOCK_SIZE);
if ((chunk = nbytes & ~(AES_BLOCK_SIZE - 1))) {
if (!padlock_cfb_encrypt(out_arg, in_arg, cdata, chunk))
return 0;
nbytes -= chunk;
}
if (nbytes) {
unsigned char *ivp = cdata->iv;
out_arg += chunk;
in_arg += chunk;
EVP_CIPHER_CTX_set_num(ctx, nbytes);
if (cdata->cword.b.encdec) {
cdata->cword.b.encdec = 0;
padlock_reload_key();
padlock_aes_block(ivp, ivp, cdata);
cdata->cword.b.encdec = 1;
padlock_reload_key();
while (nbytes) {
unsigned char c = *(in_arg++);
*(out_arg++) = c ^ *ivp;
*(ivp++) = c, nbytes--;
}
} else {
padlock_reload_key();
padlock_aes_block(ivp, ivp, cdata);
padlock_reload_key();
while (nbytes) {
*ivp = *(out_arg++) = *(in_arg++) ^ *ivp;
ivp++, nbytes--;
}
}
}
memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), cdata->iv, AES_BLOCK_SIZE);
return 1;
}
static int
padlock_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
const unsigned char *in_arg, size_t nbytes)
{
struct padlock_cipher_data *cdata = ALIGNED_CIPHER_DATA(ctx);
size_t chunk;
/*
* ctx->num is maintained in byte-oriented modes, such as CFB and OFB...
*/
if ((chunk = EVP_CIPHER_CTX_get_num(ctx))) { /* borrow chunk variable */
unsigned char *ivp = EVP_CIPHER_CTX_iv_noconst(ctx);
if (chunk >= AES_BLOCK_SIZE)
return 0; /* bogus value */
while (chunk < AES_BLOCK_SIZE && nbytes != 0) {
*(out_arg++) = *(in_arg++) ^ ivp[chunk];
chunk++, nbytes--;
}
EVP_CIPHER_CTX_set_num(ctx, chunk % AES_BLOCK_SIZE);
}
if (nbytes == 0)
return 1;
memcpy(cdata->iv, EVP_CIPHER_CTX_iv(ctx), AES_BLOCK_SIZE);
if ((chunk = nbytes & ~(AES_BLOCK_SIZE - 1))) {
if (!padlock_ofb_encrypt(out_arg, in_arg, cdata, chunk))
return 0;
nbytes -= chunk;
}
if (nbytes) {
unsigned char *ivp = cdata->iv;
out_arg += chunk;
in_arg += chunk;
EVP_CIPHER_CTX_set_num(ctx, nbytes);
padlock_reload_key(); /* empirically found */
padlock_aes_block(ivp, ivp, cdata);
padlock_reload_key(); /* empirically found */
while (nbytes) {
*(out_arg++) = *(in_arg++) ^ *ivp;
ivp++, nbytes--;
}
}
memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), cdata->iv, AES_BLOCK_SIZE);
return 1;
}
static void padlock_ctr32_encrypt_glue(const unsigned char *in,
unsigned char *out, size_t blocks,
struct padlock_cipher_data *ctx,
const unsigned char *ivec)
{
memcpy(ctx->iv, ivec, AES_BLOCK_SIZE);
padlock_ctr32_encrypt(out, in, ctx, AES_BLOCK_SIZE * blocks);
}
static int
padlock_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
const unsigned char *in_arg, size_t nbytes)
{
struct padlock_cipher_data *cdata = ALIGNED_CIPHER_DATA(ctx);
int n = EVP_CIPHER_CTX_get_num(ctx);
unsigned int num;
if (n < 0)
return 0;
num = (unsigned int)n;
CRYPTO_ctr128_encrypt_ctr32(in_arg, out_arg, nbytes,
cdata, EVP_CIPHER_CTX_iv_noconst(ctx),
EVP_CIPHER_CTX_buf_noconst(ctx), &num,
(ctr128_f) padlock_ctr32_encrypt_glue);
EVP_CIPHER_CTX_set_num(ctx, (size_t)num);
return 1;
}
# define EVP_CIPHER_block_size_ECB AES_BLOCK_SIZE
# define EVP_CIPHER_block_size_CBC AES_BLOCK_SIZE
# define EVP_CIPHER_block_size_OFB 1
# define EVP_CIPHER_block_size_CFB 1
# define EVP_CIPHER_block_size_CTR 1
/*
* Declaring so many ciphers by hand would be a pain. Instead introduce a bit
* of preprocessor magic :-)
*/
# define DECLARE_AES_EVP(ksize,lmode,umode) \
static EVP_CIPHER *_hidden_aes_##ksize##_##lmode = NULL; \
static const EVP_CIPHER *padlock_aes_##ksize##_##lmode(void) \
{ \
if (_hidden_aes_##ksize##_##lmode == NULL \
&& ((_hidden_aes_##ksize##_##lmode = \
EVP_CIPHER_meth_new(NID_aes_##ksize##_##lmode, \
EVP_CIPHER_block_size_##umode, \
AES_KEY_SIZE_##ksize)) == NULL \
|| !EVP_CIPHER_meth_set_iv_length(_hidden_aes_##ksize##_##lmode, \
AES_BLOCK_SIZE) \
|| !EVP_CIPHER_meth_set_flags(_hidden_aes_##ksize##_##lmode, \
0 | EVP_CIPH_##umode##_MODE) \
|| !EVP_CIPHER_meth_set_init(_hidden_aes_##ksize##_##lmode, \
padlock_aes_init_key) \
|| !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_##ksize##_##lmode, \
padlock_##lmode##_cipher) \
|| !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_##ksize##_##lmode, \
sizeof(struct padlock_cipher_data) + 16) \
|| !EVP_CIPHER_meth_set_set_asn1_params(_hidden_aes_##ksize##_##lmode, \
EVP_CIPHER_set_asn1_iv) \
|| !EVP_CIPHER_meth_set_get_asn1_params(_hidden_aes_##ksize##_##lmode, \
EVP_CIPHER_get_asn1_iv))) { \
EVP_CIPHER_meth_free(_hidden_aes_##ksize##_##lmode); \
_hidden_aes_##ksize##_##lmode = NULL; \
} \
return _hidden_aes_##ksize##_##lmode; \
}
DECLARE_AES_EVP(128, ecb, ECB)
DECLARE_AES_EVP(128, cbc, CBC)
DECLARE_AES_EVP(128, cfb, CFB)
DECLARE_AES_EVP(128, ofb, OFB)
DECLARE_AES_EVP(128, ctr, CTR)
DECLARE_AES_EVP(192, ecb, ECB)
DECLARE_AES_EVP(192, cbc, CBC)
DECLARE_AES_EVP(192, cfb, CFB)
DECLARE_AES_EVP(192, ofb, OFB)
DECLARE_AES_EVP(192, ctr, CTR)
DECLARE_AES_EVP(256, ecb, ECB)
DECLARE_AES_EVP(256, cbc, CBC)
DECLARE_AES_EVP(256, cfb, CFB)
DECLARE_AES_EVP(256, ofb, OFB)
DECLARE_AES_EVP(256, ctr, CTR)
static int
padlock_ciphers(ENGINE *e, const EVP_CIPHER **cipher, const int **nids,
int nid)
{
/* No specific cipher => return a list of supported nids ... */
if (!cipher) {
*nids = padlock_cipher_nids;
return padlock_cipher_nids_num;
}
/* ... or the requested "cipher" otherwise */
switch (nid) {
case NID_aes_128_ecb:
*cipher = padlock_aes_128_ecb();
break;
case NID_aes_128_cbc:
*cipher = padlock_aes_128_cbc();
break;
case NID_aes_128_cfb:
*cipher = padlock_aes_128_cfb();
break;
case NID_aes_128_ofb:
*cipher = padlock_aes_128_ofb();
break;
case NID_aes_128_ctr:
*cipher = padlock_aes_128_ctr();
break;
case NID_aes_192_ecb:
*cipher = padlock_aes_192_ecb();
break;
case NID_aes_192_cbc:
*cipher = padlock_aes_192_cbc();
break;
case NID_aes_192_cfb:
*cipher = padlock_aes_192_cfb();
break;
case NID_aes_192_ofb:
*cipher = padlock_aes_192_ofb();
break;
case NID_aes_192_ctr:
*cipher = padlock_aes_192_ctr();
break;
case NID_aes_256_ecb:
*cipher = padlock_aes_256_ecb();
break;
case NID_aes_256_cbc:
*cipher = padlock_aes_256_cbc();
break;
case NID_aes_256_cfb:
*cipher = padlock_aes_256_cfb();
break;
case NID_aes_256_ofb:
*cipher = padlock_aes_256_ofb();
break;
case NID_aes_256_ctr:
*cipher = padlock_aes_256_ctr();
break;
default:
/* Sorry, we don't support this NID */
*cipher = NULL;
return 0;
}
return 1;
}
/* Prepare the encryption key for PadLock usage */
static int
padlock_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
struct padlock_cipher_data *cdata;
int key_len = EVP_CIPHER_CTX_get_key_length(ctx) * 8;
unsigned long mode = EVP_CIPHER_CTX_get_mode(ctx);
if (key == NULL)
return 0; /* ERROR */
cdata = ALIGNED_CIPHER_DATA(ctx);
memset(cdata, 0, sizeof(*cdata));
/* Prepare Control word. */
if (mode == EVP_CIPH_OFB_MODE || mode == EVP_CIPH_CTR_MODE)
cdata->cword.b.encdec = 0;
else
cdata->cword.b.encdec = (EVP_CIPHER_CTX_is_encrypting(ctx) == 0);
cdata->cword.b.rounds = 10 + (key_len - 128) / 32;
cdata->cword.b.ksize = (key_len - 128) / 64;
switch (key_len) {
case 128:
/*
* PadLock can generate an extended key for AES128 in hardware
*/
memcpy(cdata->ks.rd_key, key, AES_KEY_SIZE_128);
cdata->cword.b.keygen = 0;
break;
case 192:
case 256:
/*
* Generate an extended AES key in software. Needed for AES192/AES256
*/
/*
* Well, the above applies to Stepping 8 CPUs and is listed as
* hardware errata. They most likely will fix it at some point and
* then a check for stepping would be due here.
*/
if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
&& !enc)
AES_set_decrypt_key(key, key_len, &cdata->ks);
else
AES_set_encrypt_key(key, key_len, &cdata->ks);
/*
* OpenSSL C functions use byte-swapped extended key.
*/
padlock_key_bswap(&cdata->ks);
cdata->cword.b.keygen = 1;
break;
default:
/* ERROR */
return 0;
}
/*
* This is done to cover for cases when user reuses the
* context for new key. The catch is that if we don't do
* this, padlock_eas_cipher might proceed with old key...
*/
padlock_reload_key();
return 1;
}
/* ===== Random Number Generator ===== */
/*
* This code is not engaged. The reason is that it does not comply
* with recommendations for VIA RNG usage for secure applications
* (posted at http://www.via.com.tw/en/viac3/c3.jsp) nor does it
* provide meaningful error control...
*/
/*
* Wrapper that provides an interface between the API and the raw PadLock
* RNG
*/
static int padlock_rand_bytes(unsigned char *output, int count)
{
unsigned int eax, buf;
while (count >= 8) {
eax = padlock_xstore(output, 0);
if (!(eax & (1 << 6)))
return 0; /* RNG disabled */
/* this ---vv--- covers DC bias, Raw Bits and String Filter */
if (eax & (0x1F << 10))
return 0;
if ((eax & 0x1F) == 0)
continue; /* no data, retry... */
if ((eax & 0x1F) != 8)
return 0; /* fatal failure... */
output += 8;
count -= 8;
}
while (count > 0) {
eax = padlock_xstore(&buf, 3);
if (!(eax & (1 << 6)))
return 0; /* RNG disabled */
/* this ---vv--- covers DC bias, Raw Bits and String Filter */
if (eax & (0x1F << 10))
return 0;
if ((eax & 0x1F) == 0)
continue; /* no data, retry... */
if ((eax & 0x1F) != 1)
return 0; /* fatal failure... */
*output++ = (unsigned char)buf;
count--;
}
OPENSSL_cleanse(&buf, sizeof(buf));
return 1;
}
/* Dummy but necessary function */
static int padlock_rand_status(void)
{
return 1;
}
/* Prepare structure for registration */
static RAND_METHOD padlock_rand = {
NULL, /* seed */
padlock_rand_bytes, /* bytes */
NULL, /* cleanup */
NULL, /* add */
padlock_rand_bytes, /* pseudorand */
padlock_rand_status, /* rand status */
};
# endif /* COMPILE_PADLOCKENG */
#endif /* !OPENSSL_NO_PADLOCKENG */
#if defined(OPENSSL_NO_PADLOCKENG) || !defined(COMPILE_PADLOCKENG)
# ifndef OPENSSL_NO_DYNAMIC_ENGINE
OPENSSL_EXPORT
int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
OPENSSL_EXPORT
int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
{
return 0;
}
IMPLEMENT_DYNAMIC_CHECK_FN()
# endif
#endif
|
./openssl/engines/e_ossltest.c | /*
* Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* This is the OSSLTEST engine. It provides deliberately crippled digest
* implementations for test purposes. It is highly insecure and must NOT be
* used for any purpose except testing
*/
/* We need to use some engine deprecated APIs */
#define OPENSSL_SUPPRESS_DEPRECATED
/*
* SHA low level APIs are deprecated for public use, but still ok for
* internal use. Note, that due to symbols not being exported, only the
* #defines and type definitions can be accessed, function calls are not
* available. The digest lengths, block sizes and sizeof(CTX) are used herein
* for several different digests.
*/
#include "internal/deprecated.h"
#include <stdio.h>
#include <string.h>
#include "internal/common.h" /* for CHECK_AND_SKIP_CASE_PREFIX */
#include <openssl/engine.h>
#include <openssl/sha.h>
#include <openssl/md5.h>
#include <openssl/rsa.h>
#include <openssl/evp.h>
#include <openssl/modes.h>
#include <openssl/aes.h>
#include <openssl/rand.h>
#include <openssl/crypto.h>
#include <openssl/pem.h>
#include <crypto/evp.h>
#include "e_ossltest_err.c"
/* Engine Id and Name */
static const char *engine_ossltest_id = "ossltest";
static const char *engine_ossltest_name = "OpenSSL Test engine support";
/* Engine Lifetime functions */
static int ossltest_destroy(ENGINE *e);
static int ossltest_init(ENGINE *e);
static int ossltest_finish(ENGINE *e);
void ENGINE_load_ossltest(void);
/* Set up digests */
static int ossltest_digests(ENGINE *e, const EVP_MD **digest,
const int **nids, int nid);
static const RAND_METHOD *ossltest_rand_method(void);
/* MD5 */
static int digest_md5_init(EVP_MD_CTX *ctx);
static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
size_t count);
static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md);
static EVP_MD *_hidden_md5_md = NULL;
static const EVP_MD *digest_md5(void)
{
if (_hidden_md5_md == NULL) {
EVP_MD *md;
if ((md = EVP_MD_meth_new(NID_md5, NID_md5WithRSAEncryption)) == NULL
|| !EVP_MD_meth_set_result_size(md, MD5_DIGEST_LENGTH)
|| !EVP_MD_meth_set_input_blocksize(md, MD5_CBLOCK)
|| !EVP_MD_meth_set_app_datasize(md,
sizeof(EVP_MD *) + sizeof(MD5_CTX))
|| !EVP_MD_meth_set_flags(md, 0)
|| !EVP_MD_meth_set_init(md, digest_md5_init)
|| !EVP_MD_meth_set_update(md, digest_md5_update)
|| !EVP_MD_meth_set_final(md, digest_md5_final)) {
EVP_MD_meth_free(md);
md = NULL;
}
_hidden_md5_md = md;
}
return _hidden_md5_md;
}
/* SHA1 */
static int digest_sha1_init(EVP_MD_CTX *ctx);
static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data,
size_t count);
static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md);
static EVP_MD *_hidden_sha1_md = NULL;
static const EVP_MD *digest_sha1(void)
{
if (_hidden_sha1_md == NULL) {
EVP_MD *md;
if ((md = EVP_MD_meth_new(NID_sha1, NID_sha1WithRSAEncryption)) == NULL
|| !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
|| !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
|| !EVP_MD_meth_set_app_datasize(md,
sizeof(EVP_MD *) + sizeof(SHA_CTX))
|| !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
|| !EVP_MD_meth_set_init(md, digest_sha1_init)
|| !EVP_MD_meth_set_update(md, digest_sha1_update)
|| !EVP_MD_meth_set_final(md, digest_sha1_final)) {
EVP_MD_meth_free(md);
md = NULL;
}
_hidden_sha1_md = md;
}
return _hidden_sha1_md;
}
/* SHA256 */
static int digest_sha256_init(EVP_MD_CTX *ctx);
static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data,
size_t count);
static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md);
static EVP_MD *_hidden_sha256_md = NULL;
static const EVP_MD *digest_sha256(void)
{
if (_hidden_sha256_md == NULL) {
EVP_MD *md;
if ((md = EVP_MD_meth_new(NID_sha256, NID_sha256WithRSAEncryption)) == NULL
|| !EVP_MD_meth_set_result_size(md, SHA256_DIGEST_LENGTH)
|| !EVP_MD_meth_set_input_blocksize(md, SHA256_CBLOCK)
|| !EVP_MD_meth_set_app_datasize(md,
sizeof(EVP_MD *) + sizeof(SHA256_CTX))
|| !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
|| !EVP_MD_meth_set_init(md, digest_sha256_init)
|| !EVP_MD_meth_set_update(md, digest_sha256_update)
|| !EVP_MD_meth_set_final(md, digest_sha256_final)) {
EVP_MD_meth_free(md);
md = NULL;
}
_hidden_sha256_md = md;
}
return _hidden_sha256_md;
}
/* SHA384/SHA512 */
static int digest_sha384_init(EVP_MD_CTX *ctx);
static int digest_sha384_update(EVP_MD_CTX *ctx, const void *data,
size_t count);
static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md);
static int digest_sha512_init(EVP_MD_CTX *ctx);
static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data,
size_t count);
static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md);
static EVP_MD *_hidden_sha384_md = NULL;
static const EVP_MD *digest_sha384(void)
{
if (_hidden_sha384_md == NULL) {
EVP_MD *md;
if ((md = EVP_MD_meth_new(NID_sha384, NID_sha384WithRSAEncryption)) == NULL
|| !EVP_MD_meth_set_result_size(md, SHA384_DIGEST_LENGTH)
|| !EVP_MD_meth_set_input_blocksize(md, SHA512_CBLOCK)
|| !EVP_MD_meth_set_app_datasize(md,
sizeof(EVP_MD *) + sizeof(SHA512_CTX))
|| !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
|| !EVP_MD_meth_set_init(md, digest_sha384_init)
|| !EVP_MD_meth_set_update(md, digest_sha384_update)
|| !EVP_MD_meth_set_final(md, digest_sha384_final)) {
EVP_MD_meth_free(md);
md = NULL;
}
_hidden_sha384_md = md;
}
return _hidden_sha384_md;
}
static EVP_MD *_hidden_sha512_md = NULL;
static const EVP_MD *digest_sha512(void)
{
if (_hidden_sha512_md == NULL) {
EVP_MD *md;
if ((md = EVP_MD_meth_new(NID_sha512, NID_sha512WithRSAEncryption)) == NULL
|| !EVP_MD_meth_set_result_size(md, SHA512_DIGEST_LENGTH)
|| !EVP_MD_meth_set_input_blocksize(md, SHA512_CBLOCK)
|| !EVP_MD_meth_set_app_datasize(md,
sizeof(EVP_MD *) + sizeof(SHA512_CTX))
|| !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
|| !EVP_MD_meth_set_init(md, digest_sha512_init)
|| !EVP_MD_meth_set_update(md, digest_sha512_update)
|| !EVP_MD_meth_set_final(md, digest_sha512_final)) {
EVP_MD_meth_free(md);
md = NULL;
}
_hidden_sha512_md = md;
}
return _hidden_sha512_md;
}
static void destroy_digests(void)
{
EVP_MD_meth_free(_hidden_md5_md);
_hidden_md5_md = NULL;
EVP_MD_meth_free(_hidden_sha1_md);
_hidden_sha1_md = NULL;
EVP_MD_meth_free(_hidden_sha256_md);
_hidden_sha256_md = NULL;
EVP_MD_meth_free(_hidden_sha384_md);
_hidden_sha384_md = NULL;
EVP_MD_meth_free(_hidden_sha512_md);
_hidden_sha512_md = NULL;
}
static int ossltest_digest_nids(const int **nids)
{
static int digest_nids[6] = { 0, 0, 0, 0, 0, 0 };
static int pos = 0;
static int init = 0;
if (!init) {
const EVP_MD *md;
if ((md = digest_md5()) != NULL)
digest_nids[pos++] = EVP_MD_get_type(md);
if ((md = digest_sha1()) != NULL)
digest_nids[pos++] = EVP_MD_get_type(md);
if ((md = digest_sha256()) != NULL)
digest_nids[pos++] = EVP_MD_get_type(md);
if ((md = digest_sha384()) != NULL)
digest_nids[pos++] = EVP_MD_get_type(md);
if ((md = digest_sha512()) != NULL)
digest_nids[pos++] = EVP_MD_get_type(md);
digest_nids[pos] = 0;
init = 1;
}
*nids = digest_nids;
return pos;
}
/* Setup ciphers */
static int ossltest_ciphers(ENGINE *, const EVP_CIPHER **,
const int **, int);
static int ossltest_cipher_nids[] = {
NID_aes_128_cbc, NID_aes_128_gcm,
NID_aes_128_cbc_hmac_sha1, 0
};
/* AES128 */
static int ossltest_aes128_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *key,
const unsigned char *iv, int enc);
static int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
static int ossltest_aes128_gcm_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *key,
const unsigned char *iv, int enc);
static int ossltest_aes128_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
static int ossltest_aes128_gcm_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
void *ptr);
static int ossltest_aes128_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *key,
const unsigned char *iv,
int enc);
static int ossltest_aes128_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx,
unsigned char *out,
const unsigned char *in,
size_t inl);
static int ossltest_aes128_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type,
int arg, void *ptr);
typedef struct {
size_t payload_length; /* AAD length in decrypt case */
unsigned int tls_ver;
} EVP_AES_HMAC_SHA1;
static EVP_CIPHER *_hidden_aes_128_cbc = NULL;
static const EVP_CIPHER *ossltest_aes_128_cbc(void)
{
if (_hidden_aes_128_cbc == NULL
&& ((_hidden_aes_128_cbc = EVP_CIPHER_meth_new(NID_aes_128_cbc,
16 /* block size */,
16 /* key len */)) == NULL
|| !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc,16)
|| !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc,
EVP_CIPH_FLAG_DEFAULT_ASN1
| EVP_CIPH_CBC_MODE)
|| !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc,
ossltest_aes128_init_key)
|| !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc,
ossltest_aes128_cbc_cipher)
|| !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc,
EVP_CIPHER_impl_ctx_size(EVP_aes_128_cbc())))) {
EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
_hidden_aes_128_cbc = NULL;
}
return _hidden_aes_128_cbc;
}
static EVP_CIPHER *_hidden_aes_128_gcm = NULL;
#define AES_GCM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
| EVP_CIPH_CUSTOM_COPY |EVP_CIPH_FLAG_AEAD_CIPHER \
| EVP_CIPH_GCM_MODE)
static const EVP_CIPHER *ossltest_aes_128_gcm(void)
{
if (_hidden_aes_128_gcm == NULL
&& ((_hidden_aes_128_gcm = EVP_CIPHER_meth_new(NID_aes_128_gcm,
1 /* block size */,
16 /* key len */)) == NULL
|| !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_gcm,12)
|| !EVP_CIPHER_meth_set_flags(_hidden_aes_128_gcm, AES_GCM_FLAGS)
|| !EVP_CIPHER_meth_set_init(_hidden_aes_128_gcm,
ossltest_aes128_gcm_init_key)
|| !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_gcm,
ossltest_aes128_gcm_cipher)
|| !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_gcm,
ossltest_aes128_gcm_ctrl)
|| !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_gcm,
EVP_CIPHER_impl_ctx_size(EVP_aes_128_gcm())))) {
EVP_CIPHER_meth_free(_hidden_aes_128_gcm);
_hidden_aes_128_gcm = NULL;
}
return _hidden_aes_128_gcm;
}
static EVP_CIPHER *_hidden_aes_128_cbc_hmac_sha1 = NULL;
static const EVP_CIPHER *ossltest_aes_128_cbc_hmac_sha1(void)
{
if (_hidden_aes_128_cbc_hmac_sha1 == NULL
&& ((_hidden_aes_128_cbc_hmac_sha1
= EVP_CIPHER_meth_new(NID_aes_128_cbc_hmac_sha1,
16 /* block size */,
16 /* key len */)) == NULL
|| !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc_hmac_sha1,16)
|| !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc_hmac_sha1,
EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
EVP_CIPH_FLAG_AEAD_CIPHER)
|| !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc_hmac_sha1,
ossltest_aes128_cbc_hmac_sha1_init_key)
|| !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc_hmac_sha1,
ossltest_aes128_cbc_hmac_sha1_cipher)
|| !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_cbc_hmac_sha1,
ossltest_aes128_cbc_hmac_sha1_ctrl)
|| !EVP_CIPHER_meth_set_set_asn1_params(_hidden_aes_128_cbc_hmac_sha1,
EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv)
|| !EVP_CIPHER_meth_set_get_asn1_params(_hidden_aes_128_cbc_hmac_sha1,
EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv)
|| !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc_hmac_sha1,
sizeof(EVP_AES_HMAC_SHA1)))) {
EVP_CIPHER_meth_free(_hidden_aes_128_cbc_hmac_sha1);
_hidden_aes_128_cbc_hmac_sha1 = NULL;
}
return _hidden_aes_128_cbc_hmac_sha1;
}
static void destroy_ciphers(void)
{
EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
EVP_CIPHER_meth_free(_hidden_aes_128_gcm);
EVP_CIPHER_meth_free(_hidden_aes_128_cbc_hmac_sha1);
_hidden_aes_128_cbc = NULL;
_hidden_aes_128_gcm = NULL;
_hidden_aes_128_cbc_hmac_sha1 = NULL;
}
/* Key loading */
static EVP_PKEY *load_key(ENGINE *eng, const char *key_id, int pub,
UI_METHOD *ui_method, void *ui_data)
{
BIO *in;
EVP_PKEY *key;
if (!CHECK_AND_SKIP_CASE_PREFIX(key_id, "ot:"))
return NULL;
fprintf(stderr, "[ossltest]Loading %s key %s\n",
pub ? "Public" : "Private", key_id);
in = BIO_new_file(key_id, "r");
if (!in)
return NULL;
if (pub)
key = PEM_read_bio_PUBKEY(in, NULL, 0, NULL);
else
key = PEM_read_bio_PrivateKey(in, NULL, 0, NULL);
BIO_free(in);
return key;
}
static EVP_PKEY *ossltest_load_privkey(ENGINE *eng, const char *key_id,
UI_METHOD *ui_method, void *ui_data)
{
return load_key(eng, key_id, 0, ui_method, ui_data);
}
static EVP_PKEY *ossltest_load_pubkey(ENGINE *eng, const char *key_id,
UI_METHOD *ui_method, void *ui_data)
{
return load_key(eng, key_id, 1, ui_method, ui_data);
}
static int bind_ossltest(ENGINE *e)
{
/* Ensure the ossltest error handling is set up */
ERR_load_OSSLTEST_strings();
if (!ENGINE_set_id(e, engine_ossltest_id)
|| !ENGINE_set_name(e, engine_ossltest_name)
|| !ENGINE_set_digests(e, ossltest_digests)
|| !ENGINE_set_ciphers(e, ossltest_ciphers)
|| !ENGINE_set_RAND(e, ossltest_rand_method())
|| !ENGINE_set_destroy_function(e, ossltest_destroy)
|| !ENGINE_set_load_privkey_function(e, ossltest_load_privkey)
|| !ENGINE_set_load_pubkey_function(e, ossltest_load_pubkey)
|| !ENGINE_set_init_function(e, ossltest_init)
|| !ENGINE_set_finish_function(e, ossltest_finish)) {
OSSLTESTerr(OSSLTEST_F_BIND_OSSLTEST, OSSLTEST_R_INIT_FAILED);
return 0;
}
return 1;
}
#ifndef OPENSSL_NO_DYNAMIC_ENGINE
static int bind_helper(ENGINE *e, const char *id)
{
if (id && (strcmp(id, engine_ossltest_id) != 0))
return 0;
if (!bind_ossltest(e))
return 0;
return 1;
}
IMPLEMENT_DYNAMIC_CHECK_FN()
IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
#endif
static ENGINE *engine_ossltest(void)
{
ENGINE *ret = ENGINE_new();
if (ret == NULL)
return NULL;
if (!bind_ossltest(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
void ENGINE_load_ossltest(void)
{
/* Copied from eng_[openssl|dyn].c */
ENGINE *toadd = engine_ossltest();
if (!toadd)
return;
ENGINE_add(toadd);
ENGINE_free(toadd);
ERR_clear_error();
}
static int ossltest_init(ENGINE *e)
{
return 1;
}
static int ossltest_finish(ENGINE *e)
{
return 1;
}
static int ossltest_destroy(ENGINE *e)
{
destroy_digests();
destroy_ciphers();
ERR_unload_OSSLTEST_strings();
return 1;
}
static int ossltest_digests(ENGINE *e, const EVP_MD **digest,
const int **nids, int nid)
{
int ok = 1;
if (!digest) {
/* We are returning a list of supported nids */
return ossltest_digest_nids(nids);
}
/* We are being asked for a specific digest */
switch (nid) {
case NID_md5:
*digest = digest_md5();
break;
case NID_sha1:
*digest = digest_sha1();
break;
case NID_sha256:
*digest = digest_sha256();
break;
case NID_sha384:
*digest = digest_sha384();
break;
case NID_sha512:
*digest = digest_sha512();
break;
default:
ok = 0;
*digest = NULL;
break;
}
return ok;
}
static int ossltest_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
const int **nids, int nid)
{
int ok = 1;
if (!cipher) {
/* We are returning a list of supported nids */
*nids = ossltest_cipher_nids;
return (sizeof(ossltest_cipher_nids) - 1)
/ sizeof(ossltest_cipher_nids[0]);
}
/* We are being asked for a specific cipher */
switch (nid) {
case NID_aes_128_cbc:
*cipher = ossltest_aes_128_cbc();
break;
case NID_aes_128_gcm:
*cipher = ossltest_aes_128_gcm();
break;
case NID_aes_128_cbc_hmac_sha1:
*cipher = ossltest_aes_128_cbc_hmac_sha1();
break;
default:
ok = 0;
*cipher = NULL;
break;
}
return ok;
}
static void fill_known_data(unsigned char *md, unsigned int len)
{
unsigned int i;
for (i=0; i<len; i++) {
md[i] = (unsigned char)(i & 0xff);
}
}
/*
* MD5 implementation. We go through the motions of doing MD5 by deferring to
* the standard implementation. Then we overwrite the result with a will defined
* value, so that all "MD5" digests using the test engine always end up with
* the same value.
*/
static int digest_md5_init(EVP_MD_CTX *ctx)
{
return EVP_MD_meth_get_init(EVP_md5())(ctx);
}
static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
size_t count)
{
return EVP_MD_meth_get_update(EVP_md5())(ctx, data, count);
}
static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md)
{
int ret = EVP_MD_meth_get_final(EVP_md5())(ctx, md);
if (ret > 0) {
fill_known_data(md, MD5_DIGEST_LENGTH);
}
return ret;
}
/*
* SHA1 implementation.
*/
static int digest_sha1_init(EVP_MD_CTX *ctx)
{
return EVP_MD_meth_get_init(EVP_sha1())(ctx);
}
static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data,
size_t count)
{
return EVP_MD_meth_get_update(EVP_sha1())(ctx, data, count);
}
static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md)
{
int ret = EVP_MD_meth_get_final(EVP_sha1())(ctx, md);
if (ret > 0) {
fill_known_data(md, SHA_DIGEST_LENGTH);
}
return ret;
}
/*
* SHA256 implementation.
*/
static int digest_sha256_init(EVP_MD_CTX *ctx)
{
return EVP_MD_meth_get_init(EVP_sha256())(ctx);
}
static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data,
size_t count)
{
return EVP_MD_meth_get_update(EVP_sha256())(ctx, data, count);
}
static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md)
{
int ret = EVP_MD_meth_get_final(EVP_sha256())(ctx, md);
if (ret > 0) {
fill_known_data(md, SHA256_DIGEST_LENGTH);
}
return ret;
}
/*
* SHA384 implementation.
*/
static int digest_sha384_init(EVP_MD_CTX *ctx)
{
return EVP_MD_meth_get_init(EVP_sha384())(ctx);
}
static int digest_sha384_update(EVP_MD_CTX *ctx, const void *data,
size_t count)
{
return EVP_MD_meth_get_update(EVP_sha384())(ctx, data, count);
}
static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md)
{
int ret = EVP_MD_meth_get_final(EVP_sha384())(ctx, md);
if (ret > 0) {
fill_known_data(md, SHA384_DIGEST_LENGTH);
}
return ret;
}
/*
* SHA512 implementation.
*/
static int digest_sha512_init(EVP_MD_CTX *ctx)
{
return EVP_MD_meth_get_init(EVP_sha512())(ctx);
}
static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data,
size_t count)
{
return EVP_MD_meth_get_update(EVP_sha512())(ctx, data, count);
}
static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md)
{
int ret = EVP_MD_meth_get_final(EVP_sha512())(ctx, md);
if (ret > 0) {
fill_known_data(md, SHA512_DIGEST_LENGTH);
}
return ret;
}
/*
* AES128 Implementation
*/
static int ossltest_aes128_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *key,
const unsigned char *iv, int enc)
{
return EVP_CIPHER_meth_get_init(EVP_aes_128_cbc()) (ctx, key, iv, enc);
}
static int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
unsigned char *tmpbuf;
int ret;
tmpbuf = OPENSSL_malloc(inl);
/* OPENSSL_malloc will return NULL if inl == 0 */
if (tmpbuf == NULL && inl > 0)
return -1;
/* Remember what we were asked to encrypt */
if (tmpbuf != NULL)
memcpy(tmpbuf, in, inl);
/* Go through the motions of encrypting it */
ret = EVP_CIPHER_meth_get_do_cipher(EVP_aes_128_cbc())(ctx, out, in, inl);
/* Throw it all away and just use the plaintext as the output */
if (tmpbuf != NULL)
memcpy(out, tmpbuf, inl);
OPENSSL_free(tmpbuf);
return ret;
}
static int ossltest_aes128_gcm_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *key,
const unsigned char *iv, int enc)
{
return EVP_CIPHER_meth_get_init(EVP_aes_128_gcm()) (ctx, key, iv, enc);
}
static int ossltest_aes128_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
unsigned char *tmpbuf = OPENSSL_malloc(inl);
/* OPENSSL_malloc will return NULL if inl == 0 */
if (tmpbuf == NULL && inl > 0)
return -1;
/* Remember what we were asked to encrypt */
if (tmpbuf != NULL)
memcpy(tmpbuf, in, inl);
/* Go through the motions of encrypting it */
EVP_CIPHER_meth_get_do_cipher(EVP_aes_128_gcm())(ctx, out, in, inl);
/* Throw it all away and just use the plaintext as the output */
if (tmpbuf != NULL && out != NULL)
memcpy(out, tmpbuf, inl);
OPENSSL_free(tmpbuf);
return inl;
}
static int ossltest_aes128_gcm_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
void *ptr)
{
/* Pass the ctrl down */
int ret = EVP_CIPHER_meth_get_ctrl(EVP_aes_128_gcm())(ctx, type, arg, ptr);
if (ret <= 0)
return ret;
switch (type) {
case EVP_CTRL_AEAD_GET_TAG:
/* Always give the same tag */
memset(ptr, 0, EVP_GCM_TLS_TAG_LEN);
break;
default:
break;
}
return 1;
}
#define NO_PAYLOAD_LENGTH ((size_t)-1)
# define data(ctx) ((EVP_AES_HMAC_SHA1 *)EVP_CIPHER_CTX_get_cipher_data(ctx))
static int ossltest_aes128_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *inkey,
const unsigned char *iv,
int enc)
{
EVP_AES_HMAC_SHA1 *key = data(ctx);
key->payload_length = NO_PAYLOAD_LENGTH;
return 1;
}
static int ossltest_aes128_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx,
unsigned char *out,
const unsigned char *in,
size_t len)
{
EVP_AES_HMAC_SHA1 *key = data(ctx);
unsigned int l;
size_t plen = key->payload_length;
key->payload_length = NO_PAYLOAD_LENGTH;
if (len % AES_BLOCK_SIZE)
return 0;
if (EVP_CIPHER_CTX_is_encrypting(ctx)) {
if (plen == NO_PAYLOAD_LENGTH)
plen = len;
else if (len !=
((plen + SHA_DIGEST_LENGTH +
AES_BLOCK_SIZE) & -AES_BLOCK_SIZE))
return 0;
memmove(out, in, plen);
if (plen != len) { /* "TLS" mode of operation */
/* calculate HMAC and append it to payload */
fill_known_data(out + plen, SHA_DIGEST_LENGTH);
/* pad the payload|hmac */
plen += SHA_DIGEST_LENGTH;
for (l = len - plen - 1; plen < len; plen++)
out[plen] = l;
}
} else {
/* decrypt HMAC|padding at once */
memmove(out, in, len);
if (plen != NO_PAYLOAD_LENGTH) { /* "TLS" mode of operation */
unsigned int maxpad, pad;
if (key->tls_ver >= TLS1_1_VERSION) {
if (len < (AES_BLOCK_SIZE + SHA_DIGEST_LENGTH + 1))
return 0;
/* omit explicit iv */
in += AES_BLOCK_SIZE;
out += AES_BLOCK_SIZE;
len -= AES_BLOCK_SIZE;
} else if (len < (SHA_DIGEST_LENGTH + 1))
return 0;
/* figure out payload length */
pad = out[len - 1];
maxpad = len - (SHA_DIGEST_LENGTH + 1);
if (pad > maxpad)
return 0;
for (plen = len - pad - 1; plen < len; plen++)
if (out[plen] != pad)
return 0;
}
}
return 1;
}
static int ossltest_aes128_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type,
int arg, void *ptr)
{
EVP_AES_HMAC_SHA1 *key = data(ctx);
switch (type) {
case EVP_CTRL_AEAD_SET_MAC_KEY:
return 1;
case EVP_CTRL_AEAD_TLS1_AAD:
{
unsigned char *p = ptr;
unsigned int len;
if (arg != EVP_AEAD_TLS1_AAD_LEN)
return -1;
len = p[arg - 2] << 8 | p[arg - 1];
key->tls_ver = p[arg - 4] << 8 | p[arg - 3];
if (EVP_CIPHER_CTX_is_encrypting(ctx)) {
key->payload_length = len;
if (key->tls_ver >= TLS1_1_VERSION) {
if (len < AES_BLOCK_SIZE)
return 0;
len -= AES_BLOCK_SIZE;
p[arg - 2] = len >> 8;
p[arg - 1] = len;
}
return (int)(((len + SHA_DIGEST_LENGTH +
AES_BLOCK_SIZE) & -AES_BLOCK_SIZE)
- len);
} else {
key->payload_length = arg;
return SHA_DIGEST_LENGTH;
}
}
default:
return -1;
}
}
static int ossltest_rand_bytes(unsigned char *buf, int num)
{
unsigned char val = 1;
while (--num >= 0)
*buf++ = val++;
return 1;
}
static int ossltest_rand_status(void)
{
return 1;
}
static const RAND_METHOD *ossltest_rand_method(void)
{
static RAND_METHOD osslt_rand_meth = {
NULL,
ossltest_rand_bytes,
NULL,
NULL,
ossltest_rand_bytes,
ossltest_rand_status
};
return &osslt_rand_meth;
}
|
./openssl/engines/e_capi_err.h | /*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef OSSL_E_CAPI_ERR_H
# define OSSL_E_CAPI_ERR_H
# pragma once
# include <openssl/opensslconf.h>
# include <openssl/symhacks.h>
# define CAPIerr(f, r) ERR_CAPI_error(0, (r), OPENSSL_FILE, OPENSSL_LINE)
# define ERR_R_CAPI_LIB ERR_CAPI_lib()
/*
* CAPI reason codes.
*/
# define CAPI_R_CANT_CREATE_HASH_OBJECT 100
# define CAPI_R_CANT_FIND_CAPI_CONTEXT 101
# define CAPI_R_CANT_GET_KEY 102
# define CAPI_R_CANT_SET_HASH_VALUE 103
# define CAPI_R_CRYPTACQUIRECONTEXT_ERROR 104
# define CAPI_R_CRYPTENUMPROVIDERS_ERROR 105
# define CAPI_R_DECRYPT_ERROR 106
# define CAPI_R_ENGINE_NOT_INITIALIZED 107
# define CAPI_R_ENUMCONTAINERS_ERROR 108
# define CAPI_R_ERROR_ADDING_CERT 109
# define CAPI_R_ERROR_CREATING_STORE 110
# define CAPI_R_ERROR_GETTING_FRIENDLY_NAME 111
# define CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO 112
# define CAPI_R_ERROR_OPENING_STORE 113
# define CAPI_R_ERROR_SIGNING_HASH 114
# define CAPI_R_FILE_OPEN_ERROR 115
# define CAPI_R_FUNCTION_NOT_SUPPORTED 116
# define CAPI_R_GETUSERKEY_ERROR 117
# define CAPI_R_INVALID_DIGEST_LENGTH 118
# define CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER 119
# define CAPI_R_INVALID_LOOKUP_METHOD 120
# define CAPI_R_INVALID_PUBLIC_KEY_BLOB 121
# define CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER 122
# define CAPI_R_PUBKEY_EXPORT_ERROR 123
# define CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR 124
# define CAPI_R_UNKNOWN_COMMAND 125
# define CAPI_R_UNSUPPORTED_ALGORITHM_NID 126
# define CAPI_R_UNSUPPORTED_PADDING 127
# define CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM 128
# define CAPI_R_WIN32_ERROR 129
#endif
|
./openssl/engines/e_ossltest_err.h | /*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef OSSL_E_OSSLTEST_ERR_H
# define OSSL_E_OSSLTEST_ERR_H
# pragma once
# include <openssl/opensslconf.h>
# include <openssl/symhacks.h>
# define OSSLTESTerr(f, r) ERR_OSSLTEST_error(0, (r), OPENSSL_FILE, OPENSSL_LINE)
/*
* OSSLTEST reason codes.
*/
# define OSSLTEST_R_INIT_FAILED 100
#endif
|
./openssl/engines/e_afalg_err.h | /*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef OSSL_E_AFALG_ERR_H
# define OSSL_E_AFALG_ERR_H
# pragma once
# include <openssl/opensslconf.h>
# include <openssl/symhacks.h>
# define AFALGerr(f, r) ERR_AFALG_error(0, (r), OPENSSL_FILE, OPENSSL_LINE)
/*
* AFALG reason codes.
*/
# define AFALG_R_EVENTFD_FAILED 108
# define AFALG_R_FAILED_TO_GET_PLATFORM_INFO 111
# define AFALG_R_INIT_FAILED 100
# define AFALG_R_IO_SETUP_FAILED 105
# define AFALG_R_KERNEL_DOES_NOT_SUPPORT_AFALG 101
# define AFALG_R_KERNEL_DOES_NOT_SUPPORT_ASYNC_AFALG 107
# define AFALG_R_KERNEL_OP_FAILED 112
# define AFALG_R_MEM_ALLOC_FAILED 102
# define AFALG_R_SOCKET_ACCEPT_FAILED 110
# define AFALG_R_SOCKET_BIND_FAILED 103
# define AFALG_R_SOCKET_CREATE_FAILED 109
# define AFALG_R_SOCKET_OPERATION_FAILED 104
# define AFALG_R_SOCKET_SET_KEY_FAILED 106
#endif
|
./openssl/engines/e_dasync.c | /*
* Copyright 2015-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/* We need to use some engine deprecated APIs */
#define OPENSSL_SUPPRESS_DEPRECATED
/*
* SHA-1 low level APIs are deprecated for public use, but still ok for
* internal use. Note, that due to symbols not being exported, only the
* #defines and structures can be accessed, in this case SHA_CBLOCK and
* sizeof(SHA_CTX).
*/
#include "internal/deprecated.h"
#include <openssl/opensslconf.h>
#if defined(_WIN32)
# include <windows.h>
#endif
#include <stdio.h>
#include <string.h>
#include <openssl/engine.h>
#include <openssl/sha.h>
#include <openssl/aes.h>
#include <openssl/rsa.h>
#include <openssl/evp.h>
#include <openssl/async.h>
#include <openssl/bn.h>
#include <openssl/crypto.h>
#include <openssl/ssl.h>
#include <openssl/modes.h>
#if defined(OPENSSL_SYS_UNIX) && defined(OPENSSL_THREADS)
# undef ASYNC_POSIX
# define ASYNC_POSIX
# include <unistd.h>
#elif defined(_WIN32)
# undef ASYNC_WIN
# define ASYNC_WIN
#endif
#include "e_dasync_err.c"
/* Engine Id and Name */
static const char *engine_dasync_id = "dasync";
static const char *engine_dasync_name = "Dummy Async engine support";
/* Engine Lifetime functions */
static int dasync_destroy(ENGINE *e);
static int dasync_init(ENGINE *e);
static int dasync_finish(ENGINE *e);
void engine_load_dasync_int(void);
/* Set up digests. Just SHA1 for now */
static int dasync_digests(ENGINE *e, const EVP_MD **digest,
const int **nids, int nid);
static void dummy_pause_job(void);
/* SHA1 */
static int dasync_sha1_init(EVP_MD_CTX *ctx);
static int dasync_sha1_update(EVP_MD_CTX *ctx, const void *data,
size_t count);
static int dasync_sha1_final(EVP_MD_CTX *ctx, unsigned char *md);
/*
* Holds the EVP_MD object for sha1 in this engine. Set up once only during
* engine bind and can then be reused many times.
*/
static EVP_MD *_hidden_sha1_md = NULL;
static const EVP_MD *dasync_sha1(void)
{
return _hidden_sha1_md;
}
static void destroy_digests(void)
{
EVP_MD_meth_free(_hidden_sha1_md);
_hidden_sha1_md = NULL;
}
static int dasync_digest_nids(const int **nids)
{
static int digest_nids[2] = { 0, 0 };
static int pos = 0;
static int init = 0;
if (!init) {
const EVP_MD *md;
if ((md = dasync_sha1()) != NULL)
digest_nids[pos++] = EVP_MD_get_type(md);
digest_nids[pos] = 0;
init = 1;
}
*nids = digest_nids;
return pos;
}
/* RSA */
static int dasync_pkey(ENGINE *e, EVP_PKEY_METHOD **pmeth,
const int **pnids, int nid);
static int dasync_rsa_init(EVP_PKEY_CTX *ctx);
static void dasync_rsa_cleanup(EVP_PKEY_CTX *ctx);
static int dasync_rsa_paramgen_init(EVP_PKEY_CTX *ctx);
static int dasync_rsa_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
static int dasync_rsa_keygen_init(EVP_PKEY_CTX *ctx);
static int dasync_rsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
static int dasync_rsa_encrypt_init(EVP_PKEY_CTX *ctx);
static int dasync_rsa_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out,
size_t *outlen, const unsigned char *in,
size_t inlen);
static int dasync_rsa_decrypt_init(EVP_PKEY_CTX *ctx);
static int dasync_rsa_decrypt(EVP_PKEY_CTX *ctx, unsigned char *out,
size_t *outlen, const unsigned char *in,
size_t inlen);
static int dasync_rsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
static int dasync_rsa_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
const char *value);
static EVP_PKEY_METHOD *dasync_rsa;
static const EVP_PKEY_METHOD *dasync_rsa_orig;
/* AES */
static int dasync_aes128_cbc_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
void *ptr);
static int dasync_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc);
static int dasync_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
static int dasync_aes128_cbc_cleanup(EVP_CIPHER_CTX *ctx);
static int dasync_aes256_ctr_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
void *ptr);
static int dasync_aes256_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc);
static int dasync_aes256_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
static int dasync_aes256_ctr_cleanup(EVP_CIPHER_CTX *ctx);
static int dasync_aes128_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type,
int arg, void *ptr);
static int dasync_aes128_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *key,
const unsigned char *iv,
int enc);
static int dasync_aes128_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx,
unsigned char *out,
const unsigned char *in,
size_t inl);
static int dasync_aes128_cbc_hmac_sha1_cleanup(EVP_CIPHER_CTX *ctx);
struct dasync_pipeline_ctx {
void *inner_cipher_data;
unsigned int numpipes;
unsigned char **inbufs;
unsigned char **outbufs;
size_t *lens;
unsigned char tlsaad[SSL_MAX_PIPELINES][EVP_AEAD_TLS1_AAD_LEN];
unsigned int aadctr;
};
/*
* Holds the EVP_CIPHER object for aes_128_cbc in this engine. Set up once only
* during engine bind and can then be reused many times.
*/
static EVP_CIPHER *_hidden_aes_128_cbc = NULL;
static const EVP_CIPHER *dasync_aes_128_cbc(void)
{
return _hidden_aes_128_cbc;
}
static EVP_CIPHER *_hidden_aes_256_ctr = NULL;
static const EVP_CIPHER *dasync_aes_256_ctr(void)
{
return _hidden_aes_256_ctr;
}
/*
* Holds the EVP_CIPHER object for aes_128_cbc_hmac_sha1 in this engine. Set up
* once only during engine bind and can then be reused many times.
*
* This 'stitched' cipher depends on the EVP_aes_128_cbc_hmac_sha1() cipher,
* which is implemented only if the AES-NI instruction set extension is available
* (see OPENSSL_IA32CAP(3)). If that's not the case, then this cipher will not
* be available either.
*
* Note: Since it is a legacy mac-then-encrypt cipher, modern TLS peers (which
* negotiate the encrypt-then-mac extension) won't negotiate it anyway.
*/
static EVP_CIPHER *_hidden_aes_128_cbc_hmac_sha1 = NULL;
static const EVP_CIPHER *dasync_aes_128_cbc_hmac_sha1(void)
{
return _hidden_aes_128_cbc_hmac_sha1;
}
static void destroy_ciphers(void)
{
EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
EVP_CIPHER_meth_free(_hidden_aes_256_ctr);
EVP_CIPHER_meth_free(_hidden_aes_128_cbc_hmac_sha1);
_hidden_aes_128_cbc = NULL;
_hidden_aes_256_ctr = NULL;
_hidden_aes_128_cbc_hmac_sha1 = NULL;
}
static int dasync_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
const int **nids, int nid);
static int dasync_cipher_nids[] = {
NID_aes_128_cbc,
NID_aes_256_ctr,
NID_aes_128_cbc_hmac_sha1,
0
};
static int bind_dasync(ENGINE *e)
{
/* Setup RSA */
if ((dasync_rsa_orig = EVP_PKEY_meth_find(EVP_PKEY_RSA)) == NULL
|| (dasync_rsa = EVP_PKEY_meth_new(EVP_PKEY_RSA,
EVP_PKEY_FLAG_AUTOARGLEN)) == NULL)
return 0;
EVP_PKEY_meth_set_init(dasync_rsa, dasync_rsa_init);
EVP_PKEY_meth_set_cleanup(dasync_rsa, dasync_rsa_cleanup);
EVP_PKEY_meth_set_paramgen(dasync_rsa, dasync_rsa_paramgen_init,
dasync_rsa_paramgen);
EVP_PKEY_meth_set_keygen(dasync_rsa, dasync_rsa_keygen_init,
dasync_rsa_keygen);
EVP_PKEY_meth_set_encrypt(dasync_rsa, dasync_rsa_encrypt_init,
dasync_rsa_encrypt);
EVP_PKEY_meth_set_decrypt(dasync_rsa, dasync_rsa_decrypt_init,
dasync_rsa_decrypt);
EVP_PKEY_meth_set_ctrl(dasync_rsa, dasync_rsa_ctrl,
dasync_rsa_ctrl_str);
/* Ensure the dasync error handling is set up */
ERR_load_DASYNC_strings();
if (!ENGINE_set_id(e, engine_dasync_id)
|| !ENGINE_set_name(e, engine_dasync_name)
|| !ENGINE_set_pkey_meths(e, dasync_pkey)
|| !ENGINE_set_digests(e, dasync_digests)
|| !ENGINE_set_ciphers(e, dasync_ciphers)
|| !ENGINE_set_destroy_function(e, dasync_destroy)
|| !ENGINE_set_init_function(e, dasync_init)
|| !ENGINE_set_finish_function(e, dasync_finish)) {
DASYNCerr(DASYNC_F_BIND_DASYNC, DASYNC_R_INIT_FAILED);
return 0;
}
/*
* Set up the EVP_CIPHER and EVP_MD objects for the ciphers/digests
* supplied by this engine
*/
_hidden_sha1_md = EVP_MD_meth_new(NID_sha1, NID_sha1WithRSAEncryption);
if (_hidden_sha1_md == NULL
|| !EVP_MD_meth_set_result_size(_hidden_sha1_md, SHA_DIGEST_LENGTH)
|| !EVP_MD_meth_set_input_blocksize(_hidden_sha1_md, SHA_CBLOCK)
|| !EVP_MD_meth_set_app_datasize(_hidden_sha1_md,
sizeof(EVP_MD *) + sizeof(SHA_CTX))
|| !EVP_MD_meth_set_flags(_hidden_sha1_md, EVP_MD_FLAG_DIGALGID_ABSENT)
|| !EVP_MD_meth_set_init(_hidden_sha1_md, dasync_sha1_init)
|| !EVP_MD_meth_set_update(_hidden_sha1_md, dasync_sha1_update)
|| !EVP_MD_meth_set_final(_hidden_sha1_md, dasync_sha1_final)) {
EVP_MD_meth_free(_hidden_sha1_md);
_hidden_sha1_md = NULL;
}
_hidden_aes_128_cbc = EVP_CIPHER_meth_new(NID_aes_128_cbc,
16 /* block size */,
16 /* key len */);
if (_hidden_aes_128_cbc == NULL
|| !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc,16)
|| !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc,
EVP_CIPH_FLAG_DEFAULT_ASN1
| EVP_CIPH_CBC_MODE
| EVP_CIPH_FLAG_PIPELINE
| EVP_CIPH_CUSTOM_COPY)
|| !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc,
dasync_aes128_init_key)
|| !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc,
dasync_aes128_cbc_cipher)
|| !EVP_CIPHER_meth_set_cleanup(_hidden_aes_128_cbc,
dasync_aes128_cbc_cleanup)
|| !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_cbc,
dasync_aes128_cbc_ctrl)
|| !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc,
sizeof(struct dasync_pipeline_ctx))) {
EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
_hidden_aes_128_cbc = NULL;
}
_hidden_aes_256_ctr = EVP_CIPHER_meth_new(NID_aes_256_ctr,
1 /* block size */,
32 /* key len */);
if (_hidden_aes_256_ctr == NULL
|| !EVP_CIPHER_meth_set_iv_length(_hidden_aes_256_ctr,16)
|| !EVP_CIPHER_meth_set_flags(_hidden_aes_256_ctr,
EVP_CIPH_FLAG_DEFAULT_ASN1
| EVP_CIPH_CTR_MODE
| EVP_CIPH_FLAG_PIPELINE
| EVP_CIPH_CUSTOM_COPY)
|| !EVP_CIPHER_meth_set_init(_hidden_aes_256_ctr,
dasync_aes256_init_key)
|| !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_256_ctr,
dasync_aes256_ctr_cipher)
|| !EVP_CIPHER_meth_set_cleanup(_hidden_aes_256_ctr,
dasync_aes256_ctr_cleanup)
|| !EVP_CIPHER_meth_set_ctrl(_hidden_aes_256_ctr,
dasync_aes256_ctr_ctrl)
|| !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_256_ctr,
sizeof(struct dasync_pipeline_ctx))) {
EVP_CIPHER_meth_free(_hidden_aes_256_ctr);
_hidden_aes_256_ctr = NULL;
}
_hidden_aes_128_cbc_hmac_sha1 = EVP_CIPHER_meth_new(
NID_aes_128_cbc_hmac_sha1,
16 /* block size */,
16 /* key len */);
if (_hidden_aes_128_cbc_hmac_sha1 == NULL
|| !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc_hmac_sha1,16)
|| !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc_hmac_sha1,
EVP_CIPH_CBC_MODE
| EVP_CIPH_FLAG_DEFAULT_ASN1
| EVP_CIPH_FLAG_AEAD_CIPHER
| EVP_CIPH_FLAG_PIPELINE
| EVP_CIPH_CUSTOM_COPY)
|| !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc_hmac_sha1,
dasync_aes128_cbc_hmac_sha1_init_key)
|| !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc_hmac_sha1,
dasync_aes128_cbc_hmac_sha1_cipher)
|| !EVP_CIPHER_meth_set_cleanup(_hidden_aes_128_cbc_hmac_sha1,
dasync_aes128_cbc_hmac_sha1_cleanup)
|| !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_cbc_hmac_sha1,
dasync_aes128_cbc_hmac_sha1_ctrl)
|| !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc_hmac_sha1,
sizeof(struct dasync_pipeline_ctx))) {
EVP_CIPHER_meth_free(_hidden_aes_128_cbc_hmac_sha1);
_hidden_aes_128_cbc_hmac_sha1 = NULL;
}
return 1;
}
static void destroy_pkey(void)
{
/*
* We don't actually need to free the dasync_rsa method since this is
* automatically freed for us by libcrypto.
*/
dasync_rsa_orig = NULL;
dasync_rsa = NULL;
}
# ifndef OPENSSL_NO_DYNAMIC_ENGINE
static int bind_helper(ENGINE *e, const char *id)
{
if (id && (strcmp(id, engine_dasync_id) != 0))
return 0;
if (!bind_dasync(e))
return 0;
return 1;
}
IMPLEMENT_DYNAMIC_CHECK_FN()
IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
# endif
static ENGINE *engine_dasync(void)
{
ENGINE *ret = ENGINE_new();
if (!ret)
return NULL;
if (!bind_dasync(ret)) {
ENGINE_free(ret);
return NULL;
}
return ret;
}
void engine_load_dasync_int(void)
{
ENGINE *toadd = engine_dasync();
if (!toadd)
return;
ERR_set_mark();
ENGINE_add(toadd);
/*
* If the "add" worked, it gets a structural reference. So either way, we
* release our just-created reference.
*/
ENGINE_free(toadd);
/*
* If the "add" didn't work, it was probably a conflict because it was
* already added (eg. someone calling ENGINE_load_blah then calling
* ENGINE_load_builtin_engines() perhaps).
*/
ERR_pop_to_mark();
}
static int dasync_init(ENGINE *e)
{
return 1;
}
static int dasync_finish(ENGINE *e)
{
return 1;
}
static int dasync_destroy(ENGINE *e)
{
destroy_digests();
destroy_ciphers();
destroy_pkey();
ERR_unload_DASYNC_strings();
return 1;
}
static int dasync_pkey(ENGINE *e, EVP_PKEY_METHOD **pmeth,
const int **pnids, int nid)
{
static const int rnid = EVP_PKEY_RSA;
if (pmeth == NULL) {
*pnids = &rnid;
return 1;
}
if (nid == EVP_PKEY_RSA) {
*pmeth = dasync_rsa;
return 1;
}
*pmeth = NULL;
return 0;
}
static int dasync_digests(ENGINE *e, const EVP_MD **digest,
const int **nids, int nid)
{
int ok = 1;
if (!digest) {
/* We are returning a list of supported nids */
return dasync_digest_nids(nids);
}
/* We are being asked for a specific digest */
switch (nid) {
case NID_sha1:
*digest = dasync_sha1();
break;
default:
ok = 0;
*digest = NULL;
break;
}
return ok;
}
static int dasync_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
const int **nids, int nid)
{
int ok = 1;
if (cipher == NULL) {
/* We are returning a list of supported nids */
*nids = dasync_cipher_nids;
return (sizeof(dasync_cipher_nids) -
1) / sizeof(dasync_cipher_nids[0]);
}
/* We are being asked for a specific cipher */
switch (nid) {
case NID_aes_128_cbc:
*cipher = dasync_aes_128_cbc();
break;
case NID_aes_256_ctr:
*cipher = dasync_aes_256_ctr();
break;
case NID_aes_128_cbc_hmac_sha1:
*cipher = dasync_aes_128_cbc_hmac_sha1();
break;
default:
ok = 0;
*cipher = NULL;
break;
}
return ok;
}
static void wait_cleanup(ASYNC_WAIT_CTX *ctx, const void *key,
OSSL_ASYNC_FD readfd, void *pvwritefd)
{
OSSL_ASYNC_FD *pwritefd = (OSSL_ASYNC_FD *)pvwritefd;
#if defined(ASYNC_WIN)
CloseHandle(readfd);
CloseHandle(*pwritefd);
#elif defined(ASYNC_POSIX)
close(readfd);
close(*pwritefd);
#endif
OPENSSL_free(pwritefd);
}
#define DUMMY_CHAR 'X'
static void dummy_pause_job(void) {
ASYNC_JOB *job;
ASYNC_WAIT_CTX *waitctx;
ASYNC_callback_fn callback;
void *callback_arg;
OSSL_ASYNC_FD pipefds[2] = {0, 0};
OSSL_ASYNC_FD *writefd;
#if defined(ASYNC_WIN)
DWORD numwritten, numread;
char buf = DUMMY_CHAR;
#elif defined(ASYNC_POSIX)
char buf = DUMMY_CHAR;
#endif
if ((job = ASYNC_get_current_job()) == NULL)
return;
waitctx = ASYNC_get_wait_ctx(job);
if (ASYNC_WAIT_CTX_get_callback(waitctx, &callback, &callback_arg) && callback != NULL) {
/*
* In the Dummy async engine we are cheating. We call the callback that the job
* is complete before the call to ASYNC_pause_job(). A real
* async engine would only call the callback when the job was actually complete
*/
(*callback)(callback_arg);
ASYNC_pause_job();
return;
}
if (ASYNC_WAIT_CTX_get_fd(waitctx, engine_dasync_id, &pipefds[0],
(void **)&writefd)) {
pipefds[1] = *writefd;
} else {
writefd = OPENSSL_malloc(sizeof(*writefd));
if (writefd == NULL)
return;
#if defined(ASYNC_WIN)
if (CreatePipe(&pipefds[0], &pipefds[1], NULL, 256) == 0) {
OPENSSL_free(writefd);
return;
}
#elif defined(ASYNC_POSIX)
if (pipe(pipefds) != 0) {
OPENSSL_free(writefd);
return;
}
#endif
*writefd = pipefds[1];
if (!ASYNC_WAIT_CTX_set_wait_fd(waitctx, engine_dasync_id, pipefds[0],
writefd, wait_cleanup)) {
wait_cleanup(waitctx, engine_dasync_id, pipefds[0], writefd);
return;
}
}
/*
* In the Dummy async engine we are cheating. We signal that the job
* is complete by waking it before the call to ASYNC_pause_job(). A real
* async engine would only wake when the job was actually complete
*/
#if defined(ASYNC_WIN)
WriteFile(pipefds[1], &buf, 1, &numwritten, NULL);
#elif defined(ASYNC_POSIX)
if (write(pipefds[1], &buf, 1) < 0)
return;
#endif
/* Ignore errors - we carry on anyway */
ASYNC_pause_job();
/* Clear the wake signal */
#if defined(ASYNC_WIN)
ReadFile(pipefds[0], &buf, 1, &numread, NULL);
#elif defined(ASYNC_POSIX)
if (read(pipefds[0], &buf, 1) < 0)
return;
#endif
}
/*
* SHA1 implementation. At the moment we just defer to the standard
* implementation
*/
static int dasync_sha1_init(EVP_MD_CTX *ctx)
{
dummy_pause_job();
return EVP_MD_meth_get_init(EVP_sha1())(ctx);
}
static int dasync_sha1_update(EVP_MD_CTX *ctx, const void *data,
size_t count)
{
dummy_pause_job();
return EVP_MD_meth_get_update(EVP_sha1())(ctx, data, count);
}
static int dasync_sha1_final(EVP_MD_CTX *ctx, unsigned char *md)
{
dummy_pause_job();
return EVP_MD_meth_get_final(EVP_sha1())(ctx, md);
}
/* Cipher helper functions */
static int dasync_cipher_ctrl_helper(EVP_CIPHER_CTX *ctx, int type, int arg,
void *ptr, int aeadcapable,
const EVP_CIPHER *ciph)
{
int ret;
struct dasync_pipeline_ctx *pipe_ctx =
(struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
if (pipe_ctx == NULL)
return 0;
switch (type) {
case EVP_CTRL_COPY:
{
size_t sz = EVP_CIPHER_impl_ctx_size(ciph);
void *inner_cipher_data = OPENSSL_malloc(sz);
if (inner_cipher_data == NULL)
return -1;
memcpy(inner_cipher_data, pipe_ctx->inner_cipher_data, sz);
pipe_ctx->inner_cipher_data = inner_cipher_data;
}
break;
case EVP_CTRL_SET_PIPELINE_OUTPUT_BUFS:
pipe_ctx->numpipes = arg;
pipe_ctx->outbufs = (unsigned char **)ptr;
break;
case EVP_CTRL_SET_PIPELINE_INPUT_BUFS:
pipe_ctx->numpipes = arg;
pipe_ctx->inbufs = (unsigned char **)ptr;
break;
case EVP_CTRL_SET_PIPELINE_INPUT_LENS:
pipe_ctx->numpipes = arg;
pipe_ctx->lens = (size_t *)ptr;
break;
case EVP_CTRL_AEAD_SET_MAC_KEY:
if (!aeadcapable)
return -1;
EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx->inner_cipher_data);
ret = EVP_CIPHER_meth_get_ctrl(EVP_aes_128_cbc_hmac_sha1())
(ctx, type, arg, ptr);
EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx);
return ret;
case EVP_CTRL_AEAD_TLS1_AAD:
{
unsigned char *p = ptr;
unsigned int len;
if (!aeadcapable || arg != EVP_AEAD_TLS1_AAD_LEN)
return -1;
if (pipe_ctx->aadctr >= SSL_MAX_PIPELINES)
return -1;
memcpy(pipe_ctx->tlsaad[pipe_ctx->aadctr], ptr,
EVP_AEAD_TLS1_AAD_LEN);
pipe_ctx->aadctr++;
len = p[arg - 2] << 8 | p[arg - 1];
if (EVP_CIPHER_CTX_is_encrypting(ctx)) {
if ((p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) {
if (len < AES_BLOCK_SIZE)
return 0;
len -= AES_BLOCK_SIZE;
}
return ((len + SHA_DIGEST_LENGTH + AES_BLOCK_SIZE)
& -AES_BLOCK_SIZE) - len;
} else {
return SHA_DIGEST_LENGTH;
}
}
default:
return 0;
}
return 1;
}
static int dasync_cipher_init_key_helper(EVP_CIPHER_CTX *ctx,
const unsigned char *key,
const unsigned char *iv, int enc,
const EVP_CIPHER *cipher)
{
int ret;
struct dasync_pipeline_ctx *pipe_ctx =
(struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
if (pipe_ctx->inner_cipher_data == NULL
&& EVP_CIPHER_impl_ctx_size(cipher) != 0) {
pipe_ctx->inner_cipher_data = OPENSSL_zalloc(
EVP_CIPHER_impl_ctx_size(cipher));
if (pipe_ctx->inner_cipher_data == NULL)
return 0;
}
pipe_ctx->numpipes = 0;
pipe_ctx->aadctr = 0;
EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx->inner_cipher_data);
ret = EVP_CIPHER_meth_get_init(cipher)(ctx, key, iv, enc);
EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx);
return ret;
}
static int dasync_cipher_helper(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl,
const EVP_CIPHER *cipher)
{
int ret = 1;
unsigned int i, pipes;
struct dasync_pipeline_ctx *pipe_ctx =
(struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
pipes = pipe_ctx->numpipes;
EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx->inner_cipher_data);
if (pipes == 0) {
if (pipe_ctx->aadctr != 0) {
if (pipe_ctx->aadctr != 1)
return -1;
EVP_CIPHER_meth_get_ctrl(cipher)
(ctx, EVP_CTRL_AEAD_TLS1_AAD,
EVP_AEAD_TLS1_AAD_LEN,
pipe_ctx->tlsaad[0]);
}
ret = EVP_CIPHER_meth_get_do_cipher(cipher)
(ctx, out, in, inl);
} else {
if (pipe_ctx->aadctr > 0 && pipe_ctx->aadctr != pipes)
return -1;
for (i = 0; i < pipes; i++) {
if (pipe_ctx->aadctr > 0) {
EVP_CIPHER_meth_get_ctrl(cipher)
(ctx, EVP_CTRL_AEAD_TLS1_AAD,
EVP_AEAD_TLS1_AAD_LEN,
pipe_ctx->tlsaad[i]);
}
ret = ret && EVP_CIPHER_meth_get_do_cipher(cipher)
(ctx, pipe_ctx->outbufs[i], pipe_ctx->inbufs[i],
pipe_ctx->lens[i]);
}
pipe_ctx->numpipes = 0;
}
pipe_ctx->aadctr = 0;
EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx);
return ret;
}
static int dasync_cipher_cleanup_helper(EVP_CIPHER_CTX *ctx,
const EVP_CIPHER *cipher)
{
struct dasync_pipeline_ctx *pipe_ctx =
(struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
OPENSSL_clear_free(pipe_ctx->inner_cipher_data,
EVP_CIPHER_impl_ctx_size(cipher));
return 1;
}
/*
* AES128 CBC Implementation
*/
static int dasync_aes128_cbc_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
void *ptr)
{
return dasync_cipher_ctrl_helper(ctx, type, arg, ptr, 0, EVP_aes_128_cbc());
}
static int dasync_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
return dasync_cipher_init_key_helper(ctx, key, iv, enc, EVP_aes_128_cbc());
}
static int dasync_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
return dasync_cipher_helper(ctx, out, in, inl, EVP_aes_128_cbc());
}
static int dasync_aes128_cbc_cleanup(EVP_CIPHER_CTX *ctx)
{
return dasync_cipher_cleanup_helper(ctx, EVP_aes_128_cbc());
}
static int dasync_aes256_ctr_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
void *ptr)
{
return dasync_cipher_ctrl_helper(ctx, type, arg, ptr, 0, EVP_aes_256_ctr());
}
static int dasync_aes256_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
return dasync_cipher_init_key_helper(ctx, key, iv, enc, EVP_aes_256_ctr());
}
static int dasync_aes256_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
return dasync_cipher_helper(ctx, out, in, inl, EVP_aes_256_ctr());
}
static int dasync_aes256_ctr_cleanup(EVP_CIPHER_CTX *ctx)
{
return dasync_cipher_cleanup_helper(ctx, EVP_aes_256_ctr());
}
/*
* AES128 CBC HMAC SHA1 Implementation
*/
static int dasync_aes128_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type,
int arg, void *ptr)
{
return dasync_cipher_ctrl_helper(ctx, type, arg, ptr, 1, EVP_aes_128_cbc_hmac_sha1());
}
static int dasync_aes128_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *key,
const unsigned char *iv,
int enc)
{
/*
* We can safely assume that EVP_aes_128_cbc_hmac_sha1() != NULL,
* see comment before the definition of dasync_aes_128_cbc_hmac_sha1().
*/
return dasync_cipher_init_key_helper(ctx, key, iv, enc,
EVP_aes_128_cbc_hmac_sha1());
}
static int dasync_aes128_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx,
unsigned char *out,
const unsigned char *in,
size_t inl)
{
return dasync_cipher_helper(ctx, out, in, inl, EVP_aes_128_cbc_hmac_sha1());
}
static int dasync_aes128_cbc_hmac_sha1_cleanup(EVP_CIPHER_CTX *ctx)
{
/*
* We can safely assume that EVP_aes_128_cbc_hmac_sha1() != NULL,
* see comment before the definition of dasync_aes_128_cbc_hmac_sha1().
*/
return dasync_cipher_cleanup_helper(ctx, EVP_aes_128_cbc_hmac_sha1());
}
/*
* RSA implementation
*/
static int dasync_rsa_init(EVP_PKEY_CTX *ctx)
{
static int (*pinit)(EVP_PKEY_CTX *ctx);
if (pinit == NULL)
EVP_PKEY_meth_get_init(dasync_rsa_orig, &pinit);
return pinit(ctx);
}
static void dasync_rsa_cleanup(EVP_PKEY_CTX *ctx)
{
static void (*pcleanup)(EVP_PKEY_CTX *ctx);
if (pcleanup == NULL)
EVP_PKEY_meth_get_cleanup(dasync_rsa_orig, &pcleanup);
pcleanup(ctx);
}
static int dasync_rsa_paramgen_init(EVP_PKEY_CTX *ctx)
{
static int (*pparamgen_init)(EVP_PKEY_CTX *ctx);
if (pparamgen_init == NULL)
EVP_PKEY_meth_get_paramgen(dasync_rsa_orig, &pparamgen_init, NULL);
return pparamgen_init != NULL ? pparamgen_init(ctx) : 1;
}
static int dasync_rsa_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
static int (*pparamgen)(EVP_PKEY_CTX *c, EVP_PKEY *pkey);
if (pparamgen == NULL)
EVP_PKEY_meth_get_paramgen(dasync_rsa_orig, NULL, &pparamgen);
return pparamgen != NULL ? pparamgen(ctx, pkey) : 1;
}
static int dasync_rsa_keygen_init(EVP_PKEY_CTX *ctx)
{
static int (*pkeygen_init)(EVP_PKEY_CTX *ctx);
if (pkeygen_init == NULL)
EVP_PKEY_meth_get_keygen(dasync_rsa_orig, &pkeygen_init, NULL);
return pkeygen_init != NULL ? pkeygen_init(ctx) : 1;
}
static int dasync_rsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
static int (*pkeygen)(EVP_PKEY_CTX *c, EVP_PKEY *pkey);
if (pkeygen == NULL)
EVP_PKEY_meth_get_keygen(dasync_rsa_orig, NULL, &pkeygen);
return pkeygen(ctx, pkey);
}
static int dasync_rsa_encrypt_init(EVP_PKEY_CTX *ctx)
{
static int (*pencrypt_init)(EVP_PKEY_CTX *ctx);
if (pencrypt_init == NULL)
EVP_PKEY_meth_get_encrypt(dasync_rsa_orig, &pencrypt_init, NULL);
return pencrypt_init != NULL ? pencrypt_init(ctx) : 1;
}
static int dasync_rsa_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out,
size_t *outlen, const unsigned char *in,
size_t inlen)
{
static int (*pencryptfn)(EVP_PKEY_CTX *ctx, unsigned char *out,
size_t *outlen, const unsigned char *in,
size_t inlen);
if (pencryptfn == NULL)
EVP_PKEY_meth_get_encrypt(dasync_rsa_orig, NULL, &pencryptfn);
return pencryptfn(ctx, out, outlen, in, inlen);
}
static int dasync_rsa_decrypt_init(EVP_PKEY_CTX *ctx)
{
static int (*pdecrypt_init)(EVP_PKEY_CTX *ctx);
if (pdecrypt_init == NULL)
EVP_PKEY_meth_get_decrypt(dasync_rsa_orig, &pdecrypt_init, NULL);
return pdecrypt_init != NULL ? pdecrypt_init(ctx) : 1;
}
static int dasync_rsa_decrypt(EVP_PKEY_CTX *ctx, unsigned char *out,
size_t *outlen, const unsigned char *in,
size_t inlen)
{
static int (*pdecrypt)(EVP_PKEY_CTX *ctx, unsigned char *out,
size_t *outlen, const unsigned char *in,
size_t inlen);
if (pdecrypt == NULL)
EVP_PKEY_meth_get_encrypt(dasync_rsa_orig, NULL, &pdecrypt);
return pdecrypt(ctx, out, outlen, in, inlen);
}
static int dasync_rsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
{
static int (*pctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
if (pctrl == NULL)
EVP_PKEY_meth_get_ctrl(dasync_rsa_orig, &pctrl, NULL);
return pctrl(ctx, type, p1, p2);
}
static int dasync_rsa_ctrl_str(EVP_PKEY_CTX *ctx, const char *type,
const char *value)
{
static int (*pctrl_str)(EVP_PKEY_CTX *ctx, const char *type,
const char *value);
if (pctrl_str == NULL)
EVP_PKEY_meth_get_ctrl(dasync_rsa_orig, NULL, &pctrl_str);
return pctrl_str(ctx, type, value);
}
|
./openssl/engines/e_devcrypto.c | /*
* Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/* We need to use some deprecated APIs */
#define OPENSSL_SUPPRESS_DEPRECATED
#include "internal/e_os.h"
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <assert.h>
#include <openssl/conf.h>
#include <openssl/evp.h>
#include <openssl/err.h>
#include <openssl/engine.h>
#include <openssl/objects.h>
#include "crypto/cryptodev.h"
#include "internal/nelem.h"
/* #define ENGINE_DEVCRYPTO_DEBUG */
#if CRYPTO_ALGORITHM_MIN < CRYPTO_ALGORITHM_MAX
# define CHECK_BSD_STYLE_MACROS
#endif
#define engine_devcrypto_id "devcrypto"
/*
* Use session2_op on FreeBSD which permits requesting specific
* drivers or classes of drivers at session creation time.
*/
#ifdef CIOCGSESSION2
typedef struct session2_op session_op_t;
#else
typedef struct session_op session_op_t;
#endif
/*
* ONE global file descriptor for all sessions. This allows operations
* such as digest session data copying (see digest_copy()), but is also
* saner... why re-open /dev/crypto for every session?
*/
static int cfd = -1;
#define DEVCRYPTO_REQUIRE_ACCELERATED 0 /* require confirmation of acceleration */
#define DEVCRYPTO_USE_SOFTWARE 1 /* allow software drivers */
#define DEVCRYPTO_REJECT_SOFTWARE 2 /* only disallow confirmed software drivers */
#define DEVCRYPTO_DEFAULT_USE_SOFTDRIVERS DEVCRYPTO_REJECT_SOFTWARE
static int use_softdrivers = DEVCRYPTO_DEFAULT_USE_SOFTDRIVERS;
/*
* cipher/digest status & acceleration definitions
* Make sure the defaults are set to 0
*/
struct driver_info_st {
enum devcrypto_status_t {
DEVCRYPTO_STATUS_FAILURE = -3, /* unusable for other reason */
DEVCRYPTO_STATUS_NO_CIOCCPHASH = -2, /* hash state copy not supported */
DEVCRYPTO_STATUS_NO_CIOCGSESSION = -1, /* session open failed */
DEVCRYPTO_STATUS_UNKNOWN = 0, /* not tested yet */
DEVCRYPTO_STATUS_USABLE = 1 /* algo can be used */
} status;
enum devcrypto_accelerated_t {
DEVCRYPTO_NOT_ACCELERATED = -1, /* software implemented */
DEVCRYPTO_ACCELERATION_UNKNOWN = 0, /* acceleration support unknown */
DEVCRYPTO_ACCELERATED = 1 /* hardware accelerated */
} accelerated;
char *driver_name;
};
#ifdef OPENSSL_NO_DYNAMIC_ENGINE
void engine_load_devcrypto_int(void);
#endif
static int clean_devcrypto_session(session_op_t *sess) {
if (ioctl(cfd, CIOCFSESSION, &sess->ses) < 0) {
ERR_raise_data(ERR_LIB_SYS, errno, "calling ioctl()");
return 0;
}
memset(sess, 0, sizeof(*sess));
return 1;
}
/******************************************************************************
*
* Ciphers
*
* Because they all do the same basic operation, we have only one set of
* method functions for them all to share, and a mapping table between
* NIDs and cryptodev IDs, with all the necessary size data.
*
*****/
struct cipher_ctx {
session_op_t sess;
int op; /* COP_ENCRYPT or COP_DECRYPT */
unsigned long mode; /* EVP_CIPH_*_MODE */
/* to handle ctr mode being a stream cipher */
unsigned char partial[EVP_MAX_BLOCK_LENGTH];
unsigned int blocksize, num;
};
static const struct cipher_data_st {
int nid;
int blocksize;
int keylen;
int ivlen;
int flags;
int devcryptoid;
} cipher_data[] = {
#ifndef OPENSSL_NO_DES
{ NID_des_cbc, 8, 8, 8, EVP_CIPH_CBC_MODE, CRYPTO_DES_CBC },
{ NID_des_ede3_cbc, 8, 24, 8, EVP_CIPH_CBC_MODE, CRYPTO_3DES_CBC },
#endif
#ifndef OPENSSL_NO_BF
{ NID_bf_cbc, 8, 16, 8, EVP_CIPH_CBC_MODE, CRYPTO_BLF_CBC },
#endif
#ifndef OPENSSL_NO_CAST
{ NID_cast5_cbc, 8, 16, 8, EVP_CIPH_CBC_MODE, CRYPTO_CAST_CBC },
#endif
{ NID_aes_128_cbc, 16, 128 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC },
{ NID_aes_192_cbc, 16, 192 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC },
{ NID_aes_256_cbc, 16, 256 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC },
#ifndef OPENSSL_NO_RC4
{ NID_rc4, 1, 16, 0, EVP_CIPH_STREAM_CIPHER, CRYPTO_ARC4 },
#endif
#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_AES_CTR)
{ NID_aes_128_ctr, 16, 128 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR },
{ NID_aes_192_ctr, 16, 192 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR },
{ NID_aes_256_ctr, 16, 256 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR },
#endif
#if 0 /* Not yet supported */
{ NID_aes_128_xts, 16, 128 / 8 * 2, 16, EVP_CIPH_XTS_MODE, CRYPTO_AES_XTS },
{ NID_aes_256_xts, 16, 256 / 8 * 2, 16, EVP_CIPH_XTS_MODE, CRYPTO_AES_XTS },
#endif
#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_AES_ECB)
{ NID_aes_128_ecb, 16, 128 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB },
{ NID_aes_192_ecb, 16, 192 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB },
{ NID_aes_256_ecb, 16, 256 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB },
#endif
#if 0 /* Not yet supported */
{ NID_aes_128_gcm, 16, 128 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM },
{ NID_aes_192_gcm, 16, 192 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM },
{ NID_aes_256_gcm, 16, 256 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM },
#endif
#ifndef OPENSSL_NO_CAMELLIA
{ NID_camellia_128_cbc, 16, 128 / 8, 16, EVP_CIPH_CBC_MODE,
CRYPTO_CAMELLIA_CBC },
{ NID_camellia_192_cbc, 16, 192 / 8, 16, EVP_CIPH_CBC_MODE,
CRYPTO_CAMELLIA_CBC },
{ NID_camellia_256_cbc, 16, 256 / 8, 16, EVP_CIPH_CBC_MODE,
CRYPTO_CAMELLIA_CBC },
#endif
};
static size_t find_cipher_data_index(int nid)
{
size_t i;
for (i = 0; i < OSSL_NELEM(cipher_data); i++)
if (nid == cipher_data[i].nid)
return i;
return (size_t)-1;
}
static size_t get_cipher_data_index(int nid)
{
size_t i = find_cipher_data_index(nid);
if (i != (size_t)-1)
return i;
/*
* Code further down must make sure that only NIDs in the table above
* are used. If any other NID reaches this function, there's a grave
* coding error further down.
*/
assert("Code that never should be reached" == NULL);
return -1;
}
static const struct cipher_data_st *get_cipher_data(int nid)
{
return &cipher_data[get_cipher_data_index(nid)];
}
/*
* Following are the three necessary functions to map OpenSSL functionality
* with cryptodev.
*/
static int cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
struct cipher_ctx *cipher_ctx =
(struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
const struct cipher_data_st *cipher_d =
get_cipher_data(EVP_CIPHER_CTX_get_nid(ctx));
int ret;
/* cleanup a previous session */
if (cipher_ctx->sess.ses != 0 &&
clean_devcrypto_session(&cipher_ctx->sess) == 0)
return 0;
cipher_ctx->sess.cipher = cipher_d->devcryptoid;
cipher_ctx->sess.keylen = cipher_d->keylen;
cipher_ctx->sess.key = (void *)key;
cipher_ctx->op = enc ? COP_ENCRYPT : COP_DECRYPT;
cipher_ctx->mode = cipher_d->flags & EVP_CIPH_MODE;
cipher_ctx->blocksize = cipher_d->blocksize;
#ifdef CIOCGSESSION2
cipher_ctx->sess.crid = (use_softdrivers == DEVCRYPTO_USE_SOFTWARE) ?
CRYPTO_FLAG_SOFTWARE | CRYPTO_FLAG_HARDWARE :
CRYPTO_FLAG_HARDWARE;
ret = ioctl(cfd, CIOCGSESSION2, &cipher_ctx->sess);
#else
ret = ioctl(cfd, CIOCGSESSION, &cipher_ctx->sess);
#endif
if (ret < 0) {
ERR_raise_data(ERR_LIB_SYS, errno, "calling ioctl()");
return 0;
}
return 1;
}
static int cipher_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
struct cipher_ctx *cipher_ctx =
(struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
struct crypt_op cryp;
unsigned char *iv = EVP_CIPHER_CTX_iv_noconst(ctx);
#if !defined(COP_FLAG_WRITE_IV)
unsigned char saved_iv[EVP_MAX_IV_LENGTH];
const unsigned char *ivptr;
size_t nblocks, ivlen;
#endif
memset(&cryp, 0, sizeof(cryp));
cryp.ses = cipher_ctx->sess.ses;
cryp.len = inl;
cryp.src = (void *)in;
cryp.dst = (void *)out;
cryp.iv = (void *)iv;
cryp.op = cipher_ctx->op;
#if !defined(COP_FLAG_WRITE_IV)
cryp.flags = 0;
ivlen = EVP_CIPHER_CTX_get_iv_length(ctx);
if (ivlen > 0)
switch (cipher_ctx->mode) {
case EVP_CIPH_CBC_MODE:
assert(inl >= ivlen);
if (!EVP_CIPHER_CTX_is_encrypting(ctx)) {
ivptr = in + inl - ivlen;
memcpy(saved_iv, ivptr, ivlen);
}
break;
case EVP_CIPH_CTR_MODE:
break;
default: /* should not happen */
return 0;
}
#else
cryp.flags = COP_FLAG_WRITE_IV;
#endif
if (ioctl(cfd, CIOCCRYPT, &cryp) < 0) {
ERR_raise_data(ERR_LIB_SYS, errno, "calling ioctl()");
return 0;
}
#if !defined(COP_FLAG_WRITE_IV)
if (ivlen > 0)
switch (cipher_ctx->mode) {
case EVP_CIPH_CBC_MODE:
assert(inl >= ivlen);
if (EVP_CIPHER_CTX_is_encrypting(ctx))
ivptr = out + inl - ivlen;
else
ivptr = saved_iv;
memcpy(iv, ivptr, ivlen);
break;
case EVP_CIPH_CTR_MODE:
nblocks = (inl + cipher_ctx->blocksize - 1)
/ cipher_ctx->blocksize;
do {
ivlen--;
nblocks += iv[ivlen];
iv[ivlen] = (uint8_t) nblocks;
nblocks >>= 8;
} while (ivlen);
break;
default: /* should not happen */
return 0;
}
#endif
return 1;
}
static int ctr_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
struct cipher_ctx *cipher_ctx =
(struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
size_t nblocks, len;
/* initial partial block */
while (cipher_ctx->num && inl) {
(*out++) = *(in++) ^ cipher_ctx->partial[cipher_ctx->num];
--inl;
cipher_ctx->num = (cipher_ctx->num + 1) % cipher_ctx->blocksize;
}
/* full blocks */
if (inl > cipher_ctx->blocksize) {
nblocks = inl/cipher_ctx->blocksize;
len = nblocks * cipher_ctx->blocksize;
if (cipher_do_cipher(ctx, out, in, len) < 1)
return 0;
inl -= len;
out += len;
in += len;
}
/* final partial block */
if (inl) {
memset(cipher_ctx->partial, 0, cipher_ctx->blocksize);
if (cipher_do_cipher(ctx, cipher_ctx->partial, cipher_ctx->partial,
cipher_ctx->blocksize) < 1)
return 0;
while (inl--) {
out[cipher_ctx->num] = in[cipher_ctx->num]
^ cipher_ctx->partial[cipher_ctx->num];
cipher_ctx->num++;
}
}
return 1;
}
static int cipher_ctrl(EVP_CIPHER_CTX *ctx, int type, int p1, void* p2)
{
struct cipher_ctx *cipher_ctx =
(struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
EVP_CIPHER_CTX *to_ctx = (EVP_CIPHER_CTX *)p2;
struct cipher_ctx *to_cipher_ctx;
switch (type) {
case EVP_CTRL_COPY:
if (cipher_ctx == NULL)
return 1;
/* when copying the context, a new session needs to be initialized */
to_cipher_ctx =
(struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(to_ctx);
memset(&to_cipher_ctx->sess, 0, sizeof(to_cipher_ctx->sess));
return cipher_init(to_ctx, (void *)cipher_ctx->sess.key, EVP_CIPHER_CTX_iv(ctx),
(cipher_ctx->op == COP_ENCRYPT));
case EVP_CTRL_INIT:
memset(&cipher_ctx->sess, 0, sizeof(cipher_ctx->sess));
return 1;
default:
break;
}
return -1;
}
static int cipher_cleanup(EVP_CIPHER_CTX *ctx)
{
struct cipher_ctx *cipher_ctx =
(struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
return clean_devcrypto_session(&cipher_ctx->sess);
}
/*
* Keep tables of known nids, associated methods, selected ciphers, and driver
* info.
* Note that known_cipher_nids[] isn't necessarily indexed the same way as
* cipher_data[] above, which the other tables are.
*/
static int known_cipher_nids[OSSL_NELEM(cipher_data)];
static int known_cipher_nids_amount = -1; /* -1 indicates not yet initialised */
static EVP_CIPHER *known_cipher_methods[OSSL_NELEM(cipher_data)] = { NULL, };
static int selected_ciphers[OSSL_NELEM(cipher_data)];
static struct driver_info_st cipher_driver_info[OSSL_NELEM(cipher_data)];
static int devcrypto_test_cipher(size_t cipher_data_index)
{
return (cipher_driver_info[cipher_data_index].status == DEVCRYPTO_STATUS_USABLE
&& selected_ciphers[cipher_data_index] == 1
&& (cipher_driver_info[cipher_data_index].accelerated
== DEVCRYPTO_ACCELERATED
|| use_softdrivers == DEVCRYPTO_USE_SOFTWARE
|| (cipher_driver_info[cipher_data_index].accelerated
!= DEVCRYPTO_NOT_ACCELERATED
&& use_softdrivers == DEVCRYPTO_REJECT_SOFTWARE)));
}
static void prepare_cipher_methods(void)
{
size_t i;
session_op_t sess;
unsigned long cipher_mode;
#ifdef CIOCGSESSION2
struct crypt_find_op fop;
enum devcrypto_accelerated_t accelerated;
#elif defined(CIOCGSESSINFO)
struct session_info_op siop;
#endif
memset(&cipher_driver_info, 0, sizeof(cipher_driver_info));
memset(&sess, 0, sizeof(sess));
sess.key = (void *)"01234567890123456789012345678901234567890123456789";
for (i = 0, known_cipher_nids_amount = 0;
i < OSSL_NELEM(cipher_data); i++) {
selected_ciphers[i] = 1;
/*
* Check that the cipher is usable
*/
sess.cipher = cipher_data[i].devcryptoid;
sess.keylen = cipher_data[i].keylen;
#ifdef CIOCGSESSION2
/*
* When using CIOCGSESSION2, first try to allocate a hardware
* ("accelerated") session. If that fails, fall back to
* allocating a software session.
*/
sess.crid = CRYPTO_FLAG_HARDWARE;
if (ioctl(cfd, CIOCGSESSION2, &sess) == 0) {
accelerated = DEVCRYPTO_ACCELERATED;
} else {
sess.crid = CRYPTO_FLAG_SOFTWARE;
if (ioctl(cfd, CIOCGSESSION2, &sess) < 0) {
cipher_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION;
continue;
}
accelerated = DEVCRYPTO_NOT_ACCELERATED;
}
#else
if (ioctl(cfd, CIOCGSESSION, &sess) < 0) {
cipher_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION;
continue;
}
#endif
cipher_mode = cipher_data[i].flags & EVP_CIPH_MODE;
if ((known_cipher_methods[i] =
EVP_CIPHER_meth_new(cipher_data[i].nid,
cipher_mode == EVP_CIPH_CTR_MODE ? 1 :
cipher_data[i].blocksize,
cipher_data[i].keylen)) == NULL
|| !EVP_CIPHER_meth_set_iv_length(known_cipher_methods[i],
cipher_data[i].ivlen)
|| !EVP_CIPHER_meth_set_flags(known_cipher_methods[i],
cipher_data[i].flags
| EVP_CIPH_CUSTOM_COPY
| EVP_CIPH_CTRL_INIT
| EVP_CIPH_FLAG_DEFAULT_ASN1)
|| !EVP_CIPHER_meth_set_init(known_cipher_methods[i], cipher_init)
|| !EVP_CIPHER_meth_set_do_cipher(known_cipher_methods[i],
cipher_mode == EVP_CIPH_CTR_MODE ?
ctr_do_cipher :
cipher_do_cipher)
|| !EVP_CIPHER_meth_set_ctrl(known_cipher_methods[i], cipher_ctrl)
|| !EVP_CIPHER_meth_set_cleanup(known_cipher_methods[i],
cipher_cleanup)
|| !EVP_CIPHER_meth_set_impl_ctx_size(known_cipher_methods[i],
sizeof(struct cipher_ctx))) {
cipher_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE;
EVP_CIPHER_meth_free(known_cipher_methods[i]);
known_cipher_methods[i] = NULL;
} else {
cipher_driver_info[i].status = DEVCRYPTO_STATUS_USABLE;
#ifdef CIOCGSESSION2
cipher_driver_info[i].accelerated = accelerated;
fop.crid = sess.crid;
if (ioctl(cfd, CIOCFINDDEV, &fop) == 0) {
cipher_driver_info[i].driver_name =
OPENSSL_strndup(fop.name, sizeof(fop.name));
}
#elif defined(CIOCGSESSINFO)
siop.ses = sess.ses;
if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) {
cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN;
} else {
cipher_driver_info[i].driver_name =
OPENSSL_strndup(siop.cipher_info.cra_driver_name,
CRYPTODEV_MAX_ALG_NAME);
if (!(siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY))
cipher_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED;
else
cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED;
}
#endif /* CIOCGSESSINFO */
}
ioctl(cfd, CIOCFSESSION, &sess.ses);
if (devcrypto_test_cipher(i)) {
known_cipher_nids[known_cipher_nids_amount++] =
cipher_data[i].nid;
}
}
}
static void rebuild_known_cipher_nids(ENGINE *e)
{
size_t i;
for (i = 0, known_cipher_nids_amount = 0; i < OSSL_NELEM(cipher_data); i++) {
if (devcrypto_test_cipher(i))
known_cipher_nids[known_cipher_nids_amount++] = cipher_data[i].nid;
}
ENGINE_unregister_ciphers(e);
ENGINE_register_ciphers(e);
}
static const EVP_CIPHER *get_cipher_method(int nid)
{
size_t i = get_cipher_data_index(nid);
if (i == (size_t)-1)
return NULL;
return known_cipher_methods[i];
}
static int get_cipher_nids(const int **nids)
{
*nids = known_cipher_nids;
return known_cipher_nids_amount;
}
static void destroy_cipher_method(int nid)
{
size_t i = get_cipher_data_index(nid);
EVP_CIPHER_meth_free(known_cipher_methods[i]);
known_cipher_methods[i] = NULL;
}
static void destroy_all_cipher_methods(void)
{
size_t i;
for (i = 0; i < OSSL_NELEM(cipher_data); i++) {
destroy_cipher_method(cipher_data[i].nid);
OPENSSL_free(cipher_driver_info[i].driver_name);
cipher_driver_info[i].driver_name = NULL;
}
}
static int devcrypto_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
const int **nids, int nid)
{
if (cipher == NULL)
return get_cipher_nids(nids);
*cipher = get_cipher_method(nid);
return *cipher != NULL;
}
static void devcrypto_select_all_ciphers(int *cipher_list)
{
size_t i;
for (i = 0; i < OSSL_NELEM(cipher_data); i++)
cipher_list[i] = 1;
}
static int cryptodev_select_cipher_cb(const char *str, int len, void *usr)
{
int *cipher_list = (int *)usr;
char *name;
const EVP_CIPHER *EVP;
size_t i;
if (len == 0)
return 1;
if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL)
return 0;
EVP = EVP_get_cipherbyname(name);
if (EVP == NULL)
fprintf(stderr, "devcrypto: unknown cipher %s\n", name);
else if ((i = find_cipher_data_index(EVP_CIPHER_get_nid(EVP))) != (size_t)-1)
cipher_list[i] = 1;
else
fprintf(stderr, "devcrypto: cipher %s not available\n", name);
OPENSSL_free(name);
return 1;
}
static void dump_cipher_info(void)
{
size_t i;
const char *name;
fprintf (stderr, "Information about ciphers supported by the /dev/crypto"
" engine:\n");
#ifndef CIOCGSESSINFO
fprintf(stderr, "CIOCGSESSINFO (session info call) unavailable\n");
#endif
for (i = 0; i < OSSL_NELEM(cipher_data); i++) {
name = OBJ_nid2sn(cipher_data[i].nid);
fprintf (stderr, "Cipher %s, NID=%d, /dev/crypto info: id=%d, ",
name ? name : "unknown", cipher_data[i].nid,
cipher_data[i].devcryptoid);
if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCGSESSION) {
fprintf (stderr, "CIOCGSESSION (session open call) failed\n");
continue;
}
fprintf (stderr, "driver=%s ", cipher_driver_info[i].driver_name ?
cipher_driver_info[i].driver_name : "unknown");
if (cipher_driver_info[i].accelerated == DEVCRYPTO_ACCELERATED)
fprintf(stderr, "(hw accelerated)");
else if (cipher_driver_info[i].accelerated == DEVCRYPTO_NOT_ACCELERATED)
fprintf(stderr, "(software)");
else
fprintf(stderr, "(acceleration status unknown)");
if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_FAILURE)
fprintf (stderr, ". Cipher setup failed");
fprintf(stderr, "\n");
}
fprintf(stderr, "\n");
}
/*
* We only support digests if the cryptodev implementation supports multiple
* data updates and session copying. Otherwise, we would be forced to maintain
* a cache, which is perilous if there's a lot of data coming in (if someone
* wants to checksum an OpenSSL tarball, for example).
*/
#if defined(CIOCCPHASH) && defined(COP_FLAG_UPDATE) && defined(COP_FLAG_FINAL)
#define IMPLEMENT_DIGEST
/******************************************************************************
*
* Digests
*
* Because they all do the same basic operation, we have only one set of
* method functions for them all to share, and a mapping table between
* NIDs and cryptodev IDs, with all the necessary size data.
*
*****/
struct digest_ctx {
session_op_t sess;
/* This signals that the init function was called, not that it succeeded. */
int init_called;
unsigned char digest_res[HASH_MAX_LEN];
};
static const struct digest_data_st {
int nid;
int blocksize;
int digestlen;
int devcryptoid;
} digest_data[] = {
#ifndef OPENSSL_NO_MD5
{ NID_md5, /* MD5_CBLOCK */ 64, 16, CRYPTO_MD5 },
#endif
{ NID_sha1, SHA_CBLOCK, 20, CRYPTO_SHA1 },
#ifndef OPENSSL_NO_RMD160
# if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_RIPEMD160)
{ NID_ripemd160, /* RIPEMD160_CBLOCK */ 64, 20, CRYPTO_RIPEMD160 },
# endif
#endif
#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_224)
{ NID_sha224, SHA256_CBLOCK, 224 / 8, CRYPTO_SHA2_224 },
#endif
#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_256)
{ NID_sha256, SHA256_CBLOCK, 256 / 8, CRYPTO_SHA2_256 },
#endif
#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_384)
{ NID_sha384, SHA512_CBLOCK, 384 / 8, CRYPTO_SHA2_384 },
#endif
#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_512)
{ NID_sha512, SHA512_CBLOCK, 512 / 8, CRYPTO_SHA2_512 },
#endif
};
static size_t find_digest_data_index(int nid)
{
size_t i;
for (i = 0; i < OSSL_NELEM(digest_data); i++)
if (nid == digest_data[i].nid)
return i;
return (size_t)-1;
}
static size_t get_digest_data_index(int nid)
{
size_t i = find_digest_data_index(nid);
if (i != (size_t)-1)
return i;
/*
* Code further down must make sure that only NIDs in the table above
* are used. If any other NID reaches this function, there's a grave
* coding error further down.
*/
assert("Code that never should be reached" == NULL);
return -1;
}
static const struct digest_data_st *get_digest_data(int nid)
{
return &digest_data[get_digest_data_index(nid)];
}
/*
* Following are the five necessary functions to map OpenSSL functionality
* with cryptodev: init, update, final, cleanup, and copy.
*/
static int digest_init(EVP_MD_CTX *ctx)
{
struct digest_ctx *digest_ctx =
(struct digest_ctx *)EVP_MD_CTX_get0_md_data(ctx);
const struct digest_data_st *digest_d =
get_digest_data(EVP_MD_CTX_get_type(ctx));
digest_ctx->init_called = 1;
memset(&digest_ctx->sess, 0, sizeof(digest_ctx->sess));
digest_ctx->sess.mac = digest_d->devcryptoid;
if (ioctl(cfd, CIOCGSESSION, &digest_ctx->sess) < 0) {
ERR_raise_data(ERR_LIB_SYS, errno, "calling ioctl()");
return 0;
}
return 1;
}
static int digest_op(struct digest_ctx *ctx, const void *src, size_t srclen,
void *res, unsigned int flags)
{
struct crypt_op cryp;
memset(&cryp, 0, sizeof(cryp));
cryp.ses = ctx->sess.ses;
cryp.len = srclen;
cryp.src = (void *)src;
cryp.dst = NULL;
cryp.mac = res;
cryp.flags = flags;
return ioctl(cfd, CIOCCRYPT, &cryp);
}
static int digest_update(EVP_MD_CTX *ctx, const void *data, size_t count)
{
struct digest_ctx *digest_ctx =
(struct digest_ctx *)EVP_MD_CTX_get0_md_data(ctx);
if (count == 0)
return 1;
if (digest_ctx == NULL)
return 0;
if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) {
if (digest_op(digest_ctx, data, count, digest_ctx->digest_res, 0) >= 0)
return 1;
} else if (digest_op(digest_ctx, data, count, NULL, COP_FLAG_UPDATE) >= 0) {
return 1;
}
ERR_raise_data(ERR_LIB_SYS, errno, "calling ioctl()");
return 0;
}
static int digest_final(EVP_MD_CTX *ctx, unsigned char *md)
{
struct digest_ctx *digest_ctx =
(struct digest_ctx *)EVP_MD_CTX_get0_md_data(ctx);
if (md == NULL || digest_ctx == NULL)
return 0;
if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) {
memcpy(md, digest_ctx->digest_res, EVP_MD_CTX_get_size(ctx));
} else if (digest_op(digest_ctx, NULL, 0, md, COP_FLAG_FINAL) < 0) {
ERR_raise_data(ERR_LIB_SYS, errno, "calling ioctl()");
return 0;
}
return 1;
}
static int digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from)
{
struct digest_ctx *digest_from =
(struct digest_ctx *)EVP_MD_CTX_get0_md_data(from);
struct digest_ctx *digest_to =
(struct digest_ctx *)EVP_MD_CTX_get0_md_data(to);
struct cphash_op cphash;
if (digest_from == NULL || digest_from->init_called != 1)
return 1;
if (!digest_init(to)) {
ERR_raise_data(ERR_LIB_SYS, errno, "calling ioctl()");
return 0;
}
cphash.src_ses = digest_from->sess.ses;
cphash.dst_ses = digest_to->sess.ses;
if (ioctl(cfd, CIOCCPHASH, &cphash) < 0) {
ERR_raise_data(ERR_LIB_SYS, errno, "calling ioctl()");
return 0;
}
return 1;
}
static int digest_cleanup(EVP_MD_CTX *ctx)
{
struct digest_ctx *digest_ctx =
(struct digest_ctx *)EVP_MD_CTX_get0_md_data(ctx);
if (digest_ctx == NULL)
return 1;
return clean_devcrypto_session(&digest_ctx->sess);
}
/*
* Keep tables of known nids, associated methods, selected digests, and
* driver info.
* Note that known_digest_nids[] isn't necessarily indexed the same way as
* digest_data[] above, which the other tables are.
*/
static int known_digest_nids[OSSL_NELEM(digest_data)];
static int known_digest_nids_amount = -1; /* -1 indicates not yet initialised */
static EVP_MD *known_digest_methods[OSSL_NELEM(digest_data)] = { NULL, };
static int selected_digests[OSSL_NELEM(digest_data)];
static struct driver_info_st digest_driver_info[OSSL_NELEM(digest_data)];
static int devcrypto_test_digest(size_t digest_data_index)
{
return (digest_driver_info[digest_data_index].status == DEVCRYPTO_STATUS_USABLE
&& selected_digests[digest_data_index] == 1
&& (digest_driver_info[digest_data_index].accelerated
== DEVCRYPTO_ACCELERATED
|| use_softdrivers == DEVCRYPTO_USE_SOFTWARE
|| (digest_driver_info[digest_data_index].accelerated
!= DEVCRYPTO_NOT_ACCELERATED
&& use_softdrivers == DEVCRYPTO_REJECT_SOFTWARE)));
}
static void rebuild_known_digest_nids(ENGINE *e)
{
size_t i;
for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data); i++) {
if (devcrypto_test_digest(i))
known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid;
}
ENGINE_unregister_digests(e);
ENGINE_register_digests(e);
}
static void prepare_digest_methods(void)
{
size_t i;
session_op_t sess1, sess2;
#ifdef CIOCGSESSINFO
struct session_info_op siop;
#endif
struct cphash_op cphash;
memset(&digest_driver_info, 0, sizeof(digest_driver_info));
memset(&sess1, 0, sizeof(sess1));
memset(&sess2, 0, sizeof(sess2));
for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data);
i++) {
selected_digests[i] = 1;
/*
* Check that the digest is usable
*/
sess1.mac = digest_data[i].devcryptoid;
sess2.ses = 0;
if (ioctl(cfd, CIOCGSESSION, &sess1) < 0) {
digest_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION;
goto finish;
}
#ifdef CIOCGSESSINFO
/* gather hardware acceleration info from the driver */
siop.ses = sess1.ses;
if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) {
digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN;
} else {
digest_driver_info[i].driver_name =
OPENSSL_strndup(siop.hash_info.cra_driver_name,
CRYPTODEV_MAX_ALG_NAME);
if (siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY)
digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED;
else
digest_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED;
}
#endif
/* digest must be capable of hash state copy */
sess2.mac = sess1.mac;
if (ioctl(cfd, CIOCGSESSION, &sess2) < 0) {
digest_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE;
goto finish;
}
cphash.src_ses = sess1.ses;
cphash.dst_ses = sess2.ses;
if (ioctl(cfd, CIOCCPHASH, &cphash) < 0) {
digest_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCCPHASH;
goto finish;
}
if ((known_digest_methods[i] = EVP_MD_meth_new(digest_data[i].nid,
NID_undef)) == NULL
|| !EVP_MD_meth_set_input_blocksize(known_digest_methods[i],
digest_data[i].blocksize)
|| !EVP_MD_meth_set_result_size(known_digest_methods[i],
digest_data[i].digestlen)
|| !EVP_MD_meth_set_init(known_digest_methods[i], digest_init)
|| !EVP_MD_meth_set_update(known_digest_methods[i], digest_update)
|| !EVP_MD_meth_set_final(known_digest_methods[i], digest_final)
|| !EVP_MD_meth_set_copy(known_digest_methods[i], digest_copy)
|| !EVP_MD_meth_set_cleanup(known_digest_methods[i], digest_cleanup)
|| !EVP_MD_meth_set_app_datasize(known_digest_methods[i],
sizeof(struct digest_ctx))) {
digest_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE;
EVP_MD_meth_free(known_digest_methods[i]);
known_digest_methods[i] = NULL;
goto finish;
}
digest_driver_info[i].status = DEVCRYPTO_STATUS_USABLE;
finish:
ioctl(cfd, CIOCFSESSION, &sess1.ses);
if (sess2.ses != 0)
ioctl(cfd, CIOCFSESSION, &sess2.ses);
if (devcrypto_test_digest(i))
known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid;
}
}
static const EVP_MD *get_digest_method(int nid)
{
size_t i = get_digest_data_index(nid);
if (i == (size_t)-1)
return NULL;
return known_digest_methods[i];
}
static int get_digest_nids(const int **nids)
{
*nids = known_digest_nids;
return known_digest_nids_amount;
}
static void destroy_digest_method(int nid)
{
size_t i = get_digest_data_index(nid);
EVP_MD_meth_free(known_digest_methods[i]);
known_digest_methods[i] = NULL;
}
static void destroy_all_digest_methods(void)
{
size_t i;
for (i = 0; i < OSSL_NELEM(digest_data); i++) {
destroy_digest_method(digest_data[i].nid);
OPENSSL_free(digest_driver_info[i].driver_name);
digest_driver_info[i].driver_name = NULL;
}
}
static int devcrypto_digests(ENGINE *e, const EVP_MD **digest,
const int **nids, int nid)
{
if (digest == NULL)
return get_digest_nids(nids);
*digest = get_digest_method(nid);
return *digest != NULL;
}
static void devcrypto_select_all_digests(int *digest_list)
{
size_t i;
for (i = 0; i < OSSL_NELEM(digest_data); i++)
digest_list[i] = 1;
}
static int cryptodev_select_digest_cb(const char *str, int len, void *usr)
{
int *digest_list = (int *)usr;
char *name;
const EVP_MD *EVP;
size_t i;
if (len == 0)
return 1;
if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL)
return 0;
EVP = EVP_get_digestbyname(name);
if (EVP == NULL)
fprintf(stderr, "devcrypto: unknown digest %s\n", name);
else if ((i = find_digest_data_index(EVP_MD_get_type(EVP))) != (size_t)-1)
digest_list[i] = 1;
else
fprintf(stderr, "devcrypto: digest %s not available\n", name);
OPENSSL_free(name);
return 1;
}
static void dump_digest_info(void)
{
size_t i;
const char *name;
fprintf (stderr, "Information about digests supported by the /dev/crypto"
" engine:\n");
#ifndef CIOCGSESSINFO
fprintf(stderr, "CIOCGSESSINFO (session info call) unavailable\n");
#endif
for (i = 0; i < OSSL_NELEM(digest_data); i++) {
name = OBJ_nid2sn(digest_data[i].nid);
fprintf (stderr, "Digest %s, NID=%d, /dev/crypto info: id=%d, driver=%s",
name ? name : "unknown", digest_data[i].nid,
digest_data[i].devcryptoid,
digest_driver_info[i].driver_name ? digest_driver_info[i].driver_name : "unknown");
if (digest_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCGSESSION) {
fprintf (stderr, ". CIOCGSESSION (session open) failed\n");
continue;
}
if (digest_driver_info[i].accelerated == DEVCRYPTO_ACCELERATED)
fprintf(stderr, " (hw accelerated)");
else if (digest_driver_info[i].accelerated == DEVCRYPTO_NOT_ACCELERATED)
fprintf(stderr, " (software)");
else
fprintf(stderr, " (acceleration status unknown)");
if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_FAILURE)
fprintf (stderr, ". Cipher setup failed\n");
else if (digest_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCCPHASH)
fprintf(stderr, ", CIOCCPHASH failed\n");
else
fprintf(stderr, ", CIOCCPHASH capable\n");
}
fprintf(stderr, "\n");
}
#endif
/******************************************************************************
*
* CONTROL COMMANDS
*
*****/
#define DEVCRYPTO_CMD_USE_SOFTDRIVERS ENGINE_CMD_BASE
#define DEVCRYPTO_CMD_CIPHERS (ENGINE_CMD_BASE + 1)
#define DEVCRYPTO_CMD_DIGESTS (ENGINE_CMD_BASE + 2)
#define DEVCRYPTO_CMD_DUMP_INFO (ENGINE_CMD_BASE + 3)
static const ENGINE_CMD_DEFN devcrypto_cmds[] = {
#if defined(CIOCGSESSINFO) || defined(CIOCGSESSION2)
{DEVCRYPTO_CMD_USE_SOFTDRIVERS,
"USE_SOFTDRIVERS",
"specifies whether to use software (not accelerated) drivers ("
OPENSSL_MSTR(DEVCRYPTO_REQUIRE_ACCELERATED) "=use only accelerated drivers, "
OPENSSL_MSTR(DEVCRYPTO_USE_SOFTWARE) "=allow all drivers, "
OPENSSL_MSTR(DEVCRYPTO_REJECT_SOFTWARE)
"=use if acceleration can't be determined) [default="
OPENSSL_MSTR(DEVCRYPTO_DEFAULT_USE_SOFTDRIVERS) "]",
ENGINE_CMD_FLAG_NUMERIC},
#endif
{DEVCRYPTO_CMD_CIPHERS,
"CIPHERS",
"either ALL, NONE, or a comma-separated list of ciphers to enable [default=ALL]",
ENGINE_CMD_FLAG_STRING},
#ifdef IMPLEMENT_DIGEST
{DEVCRYPTO_CMD_DIGESTS,
"DIGESTS",
"either ALL, NONE, or a comma-separated list of digests to enable [default=ALL]",
ENGINE_CMD_FLAG_STRING},
#endif
{DEVCRYPTO_CMD_DUMP_INFO,
"DUMP_INFO",
"dump info about each algorithm to stderr; use 'openssl engine -pre DUMP_INFO devcrypto'",
ENGINE_CMD_FLAG_NO_INPUT},
{0, NULL, NULL, 0}
};
static int devcrypto_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
{
int *new_list;
switch (cmd) {
#if defined(CIOCGSESSINFO) || defined(CIOCGSESSION2)
case DEVCRYPTO_CMD_USE_SOFTDRIVERS:
switch (i) {
case DEVCRYPTO_REQUIRE_ACCELERATED:
case DEVCRYPTO_USE_SOFTWARE:
case DEVCRYPTO_REJECT_SOFTWARE:
break;
default:
fprintf(stderr, "devcrypto: invalid value (%ld) for USE_SOFTDRIVERS\n", i);
return 0;
}
if (use_softdrivers == i)
return 1;
use_softdrivers = i;
#ifdef IMPLEMENT_DIGEST
rebuild_known_digest_nids(e);
#endif
rebuild_known_cipher_nids(e);
return 1;
#endif /* CIOCGSESSINFO || CIOCGSESSION2 */
case DEVCRYPTO_CMD_CIPHERS:
if (p == NULL)
return 1;
if (OPENSSL_strcasecmp((const char *)p, "ALL") == 0) {
devcrypto_select_all_ciphers(selected_ciphers);
} else if (OPENSSL_strcasecmp((const char*)p, "NONE") == 0) {
memset(selected_ciphers, 0, sizeof(selected_ciphers));
} else {
new_list=OPENSSL_zalloc(sizeof(selected_ciphers));
if (!CONF_parse_list(p, ',', 1, cryptodev_select_cipher_cb, new_list)) {
OPENSSL_free(new_list);
return 0;
}
memcpy(selected_ciphers, new_list, sizeof(selected_ciphers));
OPENSSL_free(new_list);
}
rebuild_known_cipher_nids(e);
return 1;
#ifdef IMPLEMENT_DIGEST
case DEVCRYPTO_CMD_DIGESTS:
if (p == NULL)
return 1;
if (OPENSSL_strcasecmp((const char *)p, "ALL") == 0) {
devcrypto_select_all_digests(selected_digests);
} else if (OPENSSL_strcasecmp((const char*)p, "NONE") == 0) {
memset(selected_digests, 0, sizeof(selected_digests));
} else {
new_list=OPENSSL_zalloc(sizeof(selected_digests));
if (!CONF_parse_list(p, ',', 1, cryptodev_select_digest_cb, new_list)) {
OPENSSL_free(new_list);
return 0;
}
memcpy(selected_digests, new_list, sizeof(selected_digests));
OPENSSL_free(new_list);
}
rebuild_known_digest_nids(e);
return 1;
#endif /* IMPLEMENT_DIGEST */
case DEVCRYPTO_CMD_DUMP_INFO:
dump_cipher_info();
#ifdef IMPLEMENT_DIGEST
dump_digest_info();
#endif
return 1;
default:
break;
}
return 0;
}
/******************************************************************************
*
* LOAD / UNLOAD
*
*****/
/*
* Opens /dev/crypto
*/
static int open_devcrypto(void)
{
int fd;
if (cfd >= 0)
return 1;
if ((fd = open("/dev/crypto", O_RDWR, 0)) < 0) {
#ifndef ENGINE_DEVCRYPTO_DEBUG
if (errno != ENOENT && errno != ENXIO)
#endif
fprintf(stderr, "Could not open /dev/crypto: %s\n", strerror(errno));
return 0;
}
#ifdef CRIOGET
if (ioctl(fd, CRIOGET, &cfd) < 0) {
fprintf(stderr, "Could not create crypto fd: %s\n", strerror(errno));
close(fd);
cfd = -1;
return 0;
}
close(fd);
#else
cfd = fd;
#endif
return 1;
}
static int close_devcrypto(void)
{
int ret;
if (cfd < 0)
return 1;
ret = close(cfd);
cfd = -1;
if (ret != 0) {
fprintf(stderr, "Error closing /dev/crypto: %s\n", strerror(errno));
return 0;
}
return 1;
}
static int devcrypto_unload(ENGINE *e)
{
destroy_all_cipher_methods();
#ifdef IMPLEMENT_DIGEST
destroy_all_digest_methods();
#endif
close_devcrypto();
return 1;
}
static int bind_devcrypto(ENGINE *e) {
if (!ENGINE_set_id(e, engine_devcrypto_id)
|| !ENGINE_set_name(e, "/dev/crypto engine")
|| !ENGINE_set_destroy_function(e, devcrypto_unload)
|| !ENGINE_set_cmd_defns(e, devcrypto_cmds)
|| !ENGINE_set_ctrl_function(e, devcrypto_ctrl))
return 0;
prepare_cipher_methods();
#ifdef IMPLEMENT_DIGEST
prepare_digest_methods();
#endif
return (ENGINE_set_ciphers(e, devcrypto_ciphers)
#ifdef IMPLEMENT_DIGEST
&& ENGINE_set_digests(e, devcrypto_digests)
#endif
/*
* Asymmetric ciphers aren't well supported with /dev/crypto. Among the BSD
* implementations, it seems to only exist in FreeBSD, and regarding the
* parameters in its crypt_kop, the manual crypto(4) has this to say:
*
* The semantics of these arguments are currently undocumented.
*
* Reading through the FreeBSD source code doesn't give much more than
* their CRK_MOD_EXP implementation for ubsec.
*
* It doesn't look much better with cryptodev-linux. They have the crypt_kop
* structure as well as the command (CRK_*) in cryptodev.h, but no support
* seems to be implemented at all for the moment.
*
* At the time of writing, it seems impossible to write proper support for
* FreeBSD's asym features without some very deep knowledge and access to
* specific kernel modules.
*
* /Richard Levitte, 2017-05-11
*/
#if 0
&& ENGINE_set_RSA(e, devcrypto_rsa)
# ifndef OPENSSL_NO_DSA
&& ENGINE_set_DSA(e, devcrypto_dsa)
# endif
# ifndef OPENSSL_NO_DH
&& ENGINE_set_DH(e, devcrypto_dh)
# endif
# ifndef OPENSSL_NO_EC
&& ENGINE_set_EC(e, devcrypto_ec)
# endif
#endif
);
}
#ifdef OPENSSL_NO_DYNAMIC_ENGINE
/*
* In case this engine is built into libcrypto, then it doesn't offer any
* ability to be dynamically loadable.
*/
void engine_load_devcrypto_int(void)
{
ENGINE *e = NULL;
if (!open_devcrypto())
return;
if ((e = ENGINE_new()) == NULL
|| !bind_devcrypto(e)) {
close_devcrypto();
ENGINE_free(e);
return;
}
ERR_set_mark();
ENGINE_add(e);
/*
* If the "add" worked, it gets a structural reference. So either way, we
* release our just-created reference.
*/
ENGINE_free(e); /* Loose our local reference */
/*
* If the "add" didn't work, it was probably a conflict because it was
* already added (eg. someone calling ENGINE_load_blah then calling
* ENGINE_load_builtin_engines() perhaps).
*/
ERR_pop_to_mark();
}
#else
static int bind_helper(ENGINE *e, const char *id)
{
if ((id && (strcmp(id, engine_devcrypto_id) != 0))
|| !open_devcrypto())
return 0;
if (!bind_devcrypto(e)) {
close_devcrypto();
return 0;
}
return 1;
}
IMPLEMENT_DYNAMIC_CHECK_FN()
IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
#endif
|
./openssl/engines/e_loader_attic_err.c | /*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/err.h>
#include "e_loader_attic_err.h"
#ifndef OPENSSL_NO_ERR
static ERR_STRING_DATA ATTIC_str_reasons[] = {
{ERR_PACK(0, 0, ATTIC_R_AMBIGUOUS_CONTENT_TYPE), "ambiguous content type"},
{ERR_PACK(0, 0, ATTIC_R_BAD_PASSWORD_READ), "bad password read"},
{ERR_PACK(0, 0, ATTIC_R_ERROR_VERIFYING_PKCS12_MAC),
"error verifying pkcs12 mac"},
{ERR_PACK(0, 0, ATTIC_R_INIT_FAILED), "init failed"},
{ERR_PACK(0, 0, ATTIC_R_PASSPHRASE_CALLBACK_ERROR),
"passphrase callback error"},
{ERR_PACK(0, 0, ATTIC_R_PATH_MUST_BE_ABSOLUTE), "path must be absolute"},
{ERR_PACK(0, 0, ATTIC_R_SEARCH_ONLY_SUPPORTED_FOR_DIRECTORIES),
"search only supported for directories"},
{ERR_PACK(0, 0, ATTIC_R_UI_PROCESS_INTERRUPTED_OR_CANCELLED),
"ui process interrupted or cancelled"},
{ERR_PACK(0, 0, ATTIC_R_UNSUPPORTED_CONTENT_TYPE),
"unsupported content type"},
{ERR_PACK(0, 0, ATTIC_R_UNSUPPORTED_SEARCH_TYPE),
"unsupported search type"},
{ERR_PACK(0, 0, ATTIC_R_URI_AUTHORITY_UNSUPPORTED),
"uri authority unsupported"},
{0, NULL}
};
#endif
static int lib_code = 0;
static int error_loaded = 0;
static int ERR_load_ATTIC_strings(void)
{
if (lib_code == 0)
lib_code = ERR_get_next_error_library();
if (!error_loaded) {
#ifndef OPENSSL_NO_ERR
ERR_load_strings(lib_code, ATTIC_str_reasons);
#endif
error_loaded = 1;
}
return 1;
}
static void ERR_unload_ATTIC_strings(void)
{
if (error_loaded) {
#ifndef OPENSSL_NO_ERR
ERR_unload_strings(lib_code, ATTIC_str_reasons);
#endif
error_loaded = 0;
}
}
static void ERR_ATTIC_error(int function, int reason, const char *file, int line)
{
if (lib_code == 0)
lib_code = ERR_get_next_error_library();
ERR_raise(lib_code, reason);
ERR_set_debug(file, line, NULL);
}
|
./openssl/engines/e_afalg.h | /*
* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef OSSL_ENGINES_E_AFALG_H
# define OSSL_ENGINES_E_AFALG_H
# if defined(__GNUC__) && __GNUC__ >= 4 && \
(!defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L)
# pragma GCC diagnostic ignored "-Wvariadic-macros"
# endif
# ifdef ALG_DEBUG
# define ALG_DGB(x, ...) fprintf(stderr, "ALG_DBG: " x, __VA_ARGS__)
# define ALG_INFO(x, ...) fprintf(stderr, "ALG_INFO: " x, __VA_ARGS__)
# define ALG_WARN(x, ...) fprintf(stderr, "ALG_WARN: " x, __VA_ARGS__)
# else
# define ALG_DGB(x, ...)
# define ALG_INFO(x, ...)
# define ALG_WARN(x, ...)
# endif
# define ALG_ERR(x, ...) fprintf(stderr, "ALG_ERR: " x, __VA_ARGS__)
# define ALG_PERR(x, ...) \
do { \
fprintf(stderr, "ALG_PERR: " x, __VA_ARGS__); \
perror(NULL); \
} while(0)
# define ALG_PWARN(x, ...) \
do { \
fprintf(stderr, "ALG_PERR: " x, __VA_ARGS__); \
perror(NULL); \
} while(0)
# ifndef AES_BLOCK_SIZE
# define AES_BLOCK_SIZE 16
# endif
# define AES_KEY_SIZE_128 16
# define AES_KEY_SIZE_192 24
# define AES_KEY_SIZE_256 32
# define AES_IV_LEN 16
# define MAX_INFLIGHTS 1
typedef enum {
MODE_UNINIT = 0,
MODE_SYNC,
MODE_ASYNC
} op_mode;
enum {
AES_CBC_128 = 0,
AES_CBC_192,
AES_CBC_256
};
struct cbc_cipher_handles {
int key_size;
EVP_CIPHER *_hidden;
};
typedef struct cbc_cipher_handles cbc_handles;
struct afalg_aio_st {
int efd;
op_mode mode;
aio_context_t aio_ctx;
struct io_event events[MAX_INFLIGHTS];
struct iocb cbt[MAX_INFLIGHTS];
};
typedef struct afalg_aio_st afalg_aio;
/*
* MAGIC Number to identify correct initialisation
* of afalg_ctx.
*/
# define MAGIC_INIT_NUM 0x1890671
struct afalg_ctx_st {
int init_done;
int sfd;
int bfd;
# ifdef ALG_ZERO_COPY
int zc_pipe[2];
# endif
afalg_aio aio;
};
typedef struct afalg_ctx_st afalg_ctx;
#endif
|
./openssl/engines/e_ossltest_err.c | /*
* Generated by util/mkerr.pl DO NOT EDIT
* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/err.h>
#include "e_ossltest_err.h"
#ifndef OPENSSL_NO_ERR
static ERR_STRING_DATA OSSLTEST_str_reasons[] = {
{ERR_PACK(0, 0, OSSLTEST_R_INIT_FAILED), "init failed"},
{0, NULL}
};
#endif
static int lib_code = 0;
static int error_loaded = 0;
static int ERR_load_OSSLTEST_strings(void)
{
if (lib_code == 0)
lib_code = ERR_get_next_error_library();
if (!error_loaded) {
#ifndef OPENSSL_NO_ERR
ERR_load_strings(lib_code, OSSLTEST_str_reasons);
#endif
error_loaded = 1;
}
return 1;
}
static void ERR_unload_OSSLTEST_strings(void)
{
if (error_loaded) {
#ifndef OPENSSL_NO_ERR
ERR_unload_strings(lib_code, OSSLTEST_str_reasons);
#endif
error_loaded = 0;
}
}
static void ERR_OSSLTEST_error(int function, int reason, const char *file, int line)
{
if (lib_code == 0)
lib_code = ERR_get_next_error_library();
ERR_raise(lib_code, reason);
ERR_set_debug(file, line, NULL);
}
|