

#if defined(__TANDEM) && defined(_SPT_MODEL_)
# include <spthread.h>
# include <spt_extensions.h> 
#endif

#include "internal/cryptlib.h"
#include <openssl/rand.h>
#include "../ssl_local.h"
#include "statem_local.h"
#include <assert.h>




typedef enum {
    
    SUB_STATE_ERROR,
    
    SUB_STATE_FINISHED,
    
    SUB_STATE_END_HANDSHAKE
} SUB_STATE_RETURN;

static int state_machine(SSL_CONNECTION *s, int server);
static void init_read_state_machine(SSL_CONNECTION *s);
static SUB_STATE_RETURN read_state_machine(SSL_CONNECTION *s);
static void init_write_state_machine(SSL_CONNECTION *s);
static SUB_STATE_RETURN write_state_machine(SSL_CONNECTION *s);

OSSL_HANDSHAKE_STATE SSL_get_state(const SSL *ssl)
{
    const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(ssl);

    if (sc == NULL)
        return TLS_ST_BEFORE;

    return sc->statem.hand_state;
}

int SSL_in_init(const SSL *s)
{
    const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);

    if (sc == NULL)
        return 0;

    return sc->statem.in_init;
}

int SSL_is_init_finished(const SSL *s)
{
    const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);

    if (sc == NULL)
        return 0;

    return !(sc->statem.in_init) && (sc->statem.hand_state == TLS_ST_OK);
}

int SSL_in_before(const SSL *s)
{
    const SSL_CONNECTION *sc = SSL_CONNECTION_FROM_CONST_SSL(s);

    if (sc == NULL)
        return 0;

    
    return (sc->statem.hand_state == TLS_ST_BEFORE)
        && (sc->statem.state == MSG_FLOW_UNINITED);
}

OSSL_HANDSHAKE_STATE ossl_statem_get_state(SSL_CONNECTION *s)
{
    return s != NULL ? s->statem.hand_state : TLS_ST_BEFORE;
}


void ossl_statem_clear(SSL_CONNECTION *s)
{
    s->statem.state = MSG_FLOW_UNINITED;
    s->statem.hand_state = TLS_ST_BEFORE;
    ossl_statem_set_in_init(s, 1);
    s->statem.no_cert_verify = 0;
}


void ossl_statem_set_renegotiate(SSL_CONNECTION *s)
{
    ossl_statem_set_in_init(s, 1);
    s->statem.request_state = TLS_ST_SW_HELLO_REQ;
}

void ossl_statem_send_fatal(SSL_CONNECTION *s, int al)
{
    
    if (s->statem.in_init && s->statem.state == MSG_FLOW_ERROR)
      return;
    ossl_statem_set_in_init(s, 1);
    s->statem.state = MSG_FLOW_ERROR;
    if (al != SSL_AD_NO_ALERT)
        ssl3_send_alert(s, SSL3_AL_FATAL, al);
}


void ossl_statem_fatal(SSL_CONNECTION *s, int al, int reason,
                       const char *fmt, ...)
{
    va_list args;

    va_start(args, fmt);
    ERR_vset_error(ERR_LIB_SSL, reason, fmt, args);
    va_end(args);

    ossl_statem_send_fatal(s, al);
}


#define check_fatal(s) \
    do { \
        if (!ossl_assert((s)->statem.in_init \
                         && (s)->statem.state == MSG_FLOW_ERROR)) \
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_MISSING_FATAL); \
    } while (0)


int ossl_statem_in_error(const SSL_CONNECTION *s)
{
    if (s->statem.state == MSG_FLOW_ERROR)
        return 1;

    return 0;
}

void ossl_statem_set_in_init(SSL_CONNECTION *s, int init)
{
    s->statem.in_init = init;
    if (s->rlayer.rrlmethod != NULL && s->rlayer.rrlmethod->set_in_init != NULL)
        s->rlayer.rrlmethod->set_in_init(s->rlayer.rrl, init);
}

int ossl_statem_get_in_handshake(SSL_CONNECTION *s)
{
    return s->statem.in_handshake;
}

void ossl_statem_set_in_handshake(SSL_CONNECTION *s, int inhand)
{
    if (inhand)
        s->statem.in_handshake++;
    else
        s->statem.in_handshake--;
}


int ossl_statem_skip_early_data(SSL_CONNECTION *s)
{
    if (s->ext.early_data != SSL_EARLY_DATA_REJECTED)
        return 0;

    if (!s->server
            || s->statem.hand_state != TLS_ST_EARLY_DATA
            || s->hello_retry_request == SSL_HRR_COMPLETE)
        return 0;

    return 1;
}


void ossl_statem_check_finish_init(SSL_CONNECTION *s, int sending)
{
    if (sending == -1) {
        if (s->statem.hand_state == TLS_ST_PENDING_EARLY_DATA_END
                || s->statem.hand_state == TLS_ST_EARLY_DATA) {
            ossl_statem_set_in_init(s, 1);
            if (s->early_data_state == SSL_EARLY_DATA_WRITE_RETRY) {
                
                s->early_data_state = SSL_EARLY_DATA_FINISHED_WRITING;
            }
        }
    } else if (!s->server) {
        if ((sending && (s->statem.hand_state == TLS_ST_PENDING_EARLY_DATA_END
                      || s->statem.hand_state == TLS_ST_EARLY_DATA)
                  && s->early_data_state != SSL_EARLY_DATA_WRITING)
                || (!sending && s->statem.hand_state == TLS_ST_EARLY_DATA)) {
            ossl_statem_set_in_init(s, 1);
            
            if (sending && s->early_data_state == SSL_EARLY_DATA_WRITE_RETRY)
                s->early_data_state = SSL_EARLY_DATA_FINISHED_WRITING;
        }
    } else {
        if (s->early_data_state == SSL_EARLY_DATA_FINISHED_READING
                && s->statem.hand_state == TLS_ST_EARLY_DATA)
            ossl_statem_set_in_init(s, 1);
    }
}

void ossl_statem_set_hello_verify_done(SSL_CONNECTION *s)
{
    s->statem.state = MSG_FLOW_UNINITED;
    ossl_statem_set_in_init(s, 1);
    
    s->statem.hand_state = TLS_ST_SR_CLNT_HELLO;
}

int ossl_statem_connect(SSL *s)
{
    SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);

    if (sc == NULL)
        return -1;

    return state_machine(sc, 0);
}

int ossl_statem_accept(SSL *s)
{
    SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);

    if (sc == NULL)
        return -1;

    return state_machine(sc, 1);
}

typedef void (*info_cb) (const SSL *, int, int);

static info_cb get_callback(SSL_CONNECTION *s)
{
    SSL_CTX *sctx = SSL_CONNECTION_GET_CTX(s);

    if (s->info_callback != NULL)
        return s->info_callback;
    else if (sctx->info_callback != NULL)
        return sctx->info_callback;

    return NULL;
}


static int state_machine(SSL_CONNECTION *s, int server)
{
    BUF_MEM *buf = NULL;
    void (*cb) (const SSL *ssl, int type, int val) = NULL;
    OSSL_STATEM *st = &s->statem;
    int ret = -1;
    int ssret;
    SSL *ssl = SSL_CONNECTION_GET_SSL(s);

    if (st->state == MSG_FLOW_ERROR) {
        
        return -1;
    }

    ERR_clear_error();
    clear_sys_error();

    cb = get_callback(s);

    st->in_handshake++;
    if (!SSL_in_init(ssl) || SSL_in_before(ssl)) {
        
        if ((s->s3.flags & TLS1_FLAGS_STATELESS) == 0 && !SSL_clear(ssl))
            return -1;
    }
#ifndef OPENSSL_NO_SCTP
    if (SSL_CONNECTION_IS_DTLS(s) && BIO_dgram_is_sctp(SSL_get_wbio(ssl))) {
        
        BIO_ctrl(SSL_get_wbio(ssl), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE,
                 st->in_handshake, NULL);
    }
#endif

    
    if (st->state == MSG_FLOW_UNINITED
            || st->state == MSG_FLOW_FINISHED) {
        if (st->state == MSG_FLOW_UNINITED) {
            st->hand_state = TLS_ST_BEFORE;
            st->request_state = TLS_ST_BEFORE;
        }

        s->server = server;
        if (cb != NULL) {
            if (SSL_IS_FIRST_HANDSHAKE(s) || !SSL_CONNECTION_IS_TLS13(s))
                cb(ssl, SSL_CB_HANDSHAKE_START, 1);
        }

        

        if (SSL_CONNECTION_IS_DTLS(s)) {
            if ((s->version & 0xff00) != (DTLS1_VERSION & 0xff00) &&
                (server || (s->version & 0xff00) != (DTLS1_BAD_VER & 0xff00))) {
                SSLfatal(s, SSL_AD_NO_ALERT, ERR_R_INTERNAL_ERROR);
                goto end;
            }
        } else {
            if ((s->version >> 8) != SSL3_VERSION_MAJOR) {
                SSLfatal(s, SSL_AD_NO_ALERT, ERR_R_INTERNAL_ERROR);
                goto end;
            }
        }

        if (!ssl_security(s, SSL_SECOP_VERSION, 0, s->version, NULL)) {
            SSLfatal(s, SSL_AD_NO_ALERT, ERR_R_INTERNAL_ERROR);
            goto end;
        }

        if (s->init_buf == NULL) {
            if ((buf = BUF_MEM_new()) == NULL) {
                SSLfatal(s, SSL_AD_NO_ALERT, ERR_R_INTERNAL_ERROR);
                goto end;
            }
            if (!BUF_MEM_grow(buf, SSL3_RT_MAX_PLAIN_LENGTH)) {
                SSLfatal(s, SSL_AD_NO_ALERT, ERR_R_INTERNAL_ERROR);
                goto end;
            }
            s->init_buf = buf;
            buf = NULL;
        }

        s->init_num = 0;

        
        s->s3.change_cipher_spec = 0;

        
#ifndef OPENSSL_NO_SCTP
        if (!SSL_CONNECTION_IS_DTLS(s) || !BIO_dgram_is_sctp(SSL_get_wbio(ssl)))
#endif
            if (!ssl_init_wbio_buffer(s)) {
                SSLfatal(s, SSL_AD_NO_ALERT, ERR_R_INTERNAL_ERROR);
                goto end;
            }

        if ((SSL_in_before(ssl))
                || s->renegotiate) {
            if (!tls_setup_handshake(s)) {
                
                goto end;
            }

            if (SSL_IS_FIRST_HANDSHAKE(s))
                st->read_state_first_init = 1;
        }

        st->state = MSG_FLOW_WRITING;
        init_write_state_machine(s);
    }

    while (st->state != MSG_FLOW_FINISHED) {
        if (st->state == MSG_FLOW_READING) {
            ssret = read_state_machine(s);
            if (ssret == SUB_STATE_FINISHED) {
                st->state = MSG_FLOW_WRITING;
                init_write_state_machine(s);
            } else {
                
                goto end;
            }
        } else if (st->state == MSG_FLOW_WRITING) {
            ssret = write_state_machine(s);
            if (ssret == SUB_STATE_FINISHED) {
                st->state = MSG_FLOW_READING;
                init_read_state_machine(s);
            } else if (ssret == SUB_STATE_END_HANDSHAKE) {
                st->state = MSG_FLOW_FINISHED;
            } else {
                
                goto end;
            }
        } else {
            
            check_fatal(s);
            ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
            goto end;
        }
    }

    ret = 1;

 end:
    st->in_handshake--;

#ifndef OPENSSL_NO_SCTP
    if (SSL_CONNECTION_IS_DTLS(s) && BIO_dgram_is_sctp(SSL_get_wbio(ssl))) {
        
        BIO_ctrl(SSL_get_wbio(ssl), BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE,
                 st->in_handshake, NULL);
    }
#endif

    BUF_MEM_free(buf);
    if (cb != NULL) {
        if (server)
            cb(ssl, SSL_CB_ACCEPT_EXIT, ret);
        else
            cb(ssl, SSL_CB_CONNECT_EXIT, ret);
    }
    return ret;
}


static void init_read_state_machine(SSL_CONNECTION *s)
{
    OSSL_STATEM *st = &s->statem;

    st->read_state = READ_STATE_HEADER;
}

static int grow_init_buf(SSL_CONNECTION *s, size_t size) {

    size_t msg_offset = (char *)s->init_msg - s->init_buf->data;

    if (!BUF_MEM_grow_clean(s->init_buf, (int)size))
        return 0;

    if (size < msg_offset)
        return 0;

    s->init_msg = s->init_buf->data + msg_offset;

    return 1;
}


static SUB_STATE_RETURN read_state_machine(SSL_CONNECTION *s)
{
    OSSL_STATEM *st = &s->statem;
    int ret, mt;
    size_t len = 0;
    int (*transition) (SSL_CONNECTION *s, int mt);
    PACKET pkt;
    MSG_PROCESS_RETURN(*process_message) (SSL_CONNECTION *s, PACKET *pkt);
    WORK_STATE(*post_process_message) (SSL_CONNECTION *s, WORK_STATE wst);
    size_t (*max_message_size) (SSL_CONNECTION *s);
    void (*cb) (const SSL *ssl, int type, int val) = NULL;
    SSL *ssl = SSL_CONNECTION_GET_SSL(s);

    cb = get_callback(s);

    if (s->server) {
        transition = ossl_statem_server_read_transition;
        process_message = ossl_statem_server_process_message;
        max_message_size = ossl_statem_server_max_message_size;
        post_process_message = ossl_statem_server_post_process_message;
    } else {
        transition = ossl_statem_client_read_transition;
        process_message = ossl_statem_client_process_message;
        max_message_size = ossl_statem_client_max_message_size;
        post_process_message = ossl_statem_client_post_process_message;
    }

    if (st->read_state_first_init) {
        s->first_packet = 1;
        st->read_state_first_init = 0;
    }

    while (1) {
        switch (st->read_state) {
        case READ_STATE_HEADER:
            
            if (SSL_CONNECTION_IS_DTLS(s)) {
                
                ret = dtls_get_message(s, &mt);
            } else {
                ret = tls_get_message_header(s, &mt);
            }

            if (ret == 0) {
                
                return SUB_STATE_ERROR;
            }

            if (cb != NULL) {
                
                if (s->server)
                    cb(ssl, SSL_CB_ACCEPT_LOOP, 1);
                else
                    cb(ssl, SSL_CB_CONNECT_LOOP, 1);
            }
            
            if (!transition(s, mt))
                return SUB_STATE_ERROR;

            if (s->s3.tmp.message_size > max_message_size(s)) {
                SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,
                         SSL_R_EXCESSIVE_MESSAGE_SIZE);
                return SUB_STATE_ERROR;
            }

            
            if (!SSL_CONNECTION_IS_DTLS(s)
                    && s->s3.tmp.message_size > 0
                    && !grow_init_buf(s, s->s3.tmp.message_size
                                         + SSL3_HM_HEADER_LENGTH)) {
                SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_BUF_LIB);
                return SUB_STATE_ERROR;
            }

            st->read_state = READ_STATE_BODY;
            

        case READ_STATE_BODY:
            if (SSL_CONNECTION_IS_DTLS(s)) {
                
                ret = dtls_get_message_body(s, &len);
            } else {
                ret = tls_get_message_body(s, &len);
            }
            if (ret == 0) {
                
                return SUB_STATE_ERROR;
            }

            s->first_packet = 0;
            if (!PACKET_buf_init(&pkt, s->init_msg, len)) {
                SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
                return SUB_STATE_ERROR;
            }
            ret = process_message(s, &pkt);

            
            s->init_num = 0;

            switch (ret) {
            case MSG_PROCESS_ERROR:
                check_fatal(s);
                return SUB_STATE_ERROR;

            case MSG_PROCESS_FINISHED_READING:
                if (SSL_CONNECTION_IS_DTLS(s)) {
                    dtls1_stop_timer(s);
                }
                return SUB_STATE_FINISHED;

            case MSG_PROCESS_CONTINUE_PROCESSING:
                st->read_state = READ_STATE_POST_PROCESS;
                st->read_state_work = WORK_MORE_A;
                break;

            default:
                st->read_state = READ_STATE_HEADER;
                break;
            }
            break;

        case READ_STATE_POST_PROCESS:
            st->read_state_work = post_process_message(s, st->read_state_work);
            switch (st->read_state_work) {
            case WORK_ERROR:
                check_fatal(s);
                
            case WORK_MORE_A:
            case WORK_MORE_B:
            case WORK_MORE_C:
                return SUB_STATE_ERROR;

            case WORK_FINISHED_CONTINUE:
                st->read_state = READ_STATE_HEADER;
                break;

            case WORK_FINISHED_STOP:
                if (SSL_CONNECTION_IS_DTLS(s)) {
                    dtls1_stop_timer(s);
                }
                return SUB_STATE_FINISHED;
            }
            break;

        default:
            
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
            return SUB_STATE_ERROR;
        }
    }
}


static int statem_do_write(SSL_CONNECTION *s)
{
    OSSL_STATEM *st = &s->statem;

    if (st->hand_state == TLS_ST_CW_CHANGE
        || st->hand_state == TLS_ST_SW_CHANGE) {
        if (SSL_CONNECTION_IS_DTLS(s))
            return dtls1_do_write(s, SSL3_RT_CHANGE_CIPHER_SPEC);
        else
            return ssl3_do_write(s, SSL3_RT_CHANGE_CIPHER_SPEC);
    } else {
        return ssl_do_write(s);
    }
}


static void init_write_state_machine(SSL_CONNECTION *s)
{
    OSSL_STATEM *st = &s->statem;

    st->write_state = WRITE_STATE_TRANSITION;
}


static SUB_STATE_RETURN write_state_machine(SSL_CONNECTION *s)
{
    OSSL_STATEM *st = &s->statem;
    int ret;
    WRITE_TRAN(*transition) (SSL_CONNECTION *s);
    WORK_STATE(*pre_work) (SSL_CONNECTION *s, WORK_STATE wst);
    WORK_STATE(*post_work) (SSL_CONNECTION *s, WORK_STATE wst);
    int (*get_construct_message_f) (SSL_CONNECTION *s,
                                    CON_FUNC_RETURN (**confunc) (SSL_CONNECTION *s,
                                                                 WPACKET *pkt),
                                    int *mt);
    void (*cb) (const SSL *ssl, int type, int val) = NULL;
    CON_FUNC_RETURN (*confunc) (SSL_CONNECTION *s, WPACKET *pkt);
    int mt;
    WPACKET pkt;
    SSL *ssl = SSL_CONNECTION_GET_SSL(s);

    cb = get_callback(s);

    if (s->server) {
        transition = ossl_statem_server_write_transition;
        pre_work = ossl_statem_server_pre_work;
        post_work = ossl_statem_server_post_work;
        get_construct_message_f = ossl_statem_server_construct_message;
    } else {
        transition = ossl_statem_client_write_transition;
        pre_work = ossl_statem_client_pre_work;
        post_work = ossl_statem_client_post_work;
        get_construct_message_f = ossl_statem_client_construct_message;
    }

    while (1) {
        switch (st->write_state) {
        case WRITE_STATE_TRANSITION:
            if (cb != NULL) {
                
                if (s->server)
                    cb(ssl, SSL_CB_ACCEPT_LOOP, 1);
                else
                    cb(ssl, SSL_CB_CONNECT_LOOP, 1);
            }
            switch (transition(s)) {
            case WRITE_TRAN_CONTINUE:
                st->write_state = WRITE_STATE_PRE_WORK;
                st->write_state_work = WORK_MORE_A;
                break;

            case WRITE_TRAN_FINISHED:
                return SUB_STATE_FINISHED;
                break;

            case WRITE_TRAN_ERROR:
                check_fatal(s);
                return SUB_STATE_ERROR;
            }
            break;

        case WRITE_STATE_PRE_WORK:
            switch (st->write_state_work = pre_work(s, st->write_state_work)) {
            case WORK_ERROR:
                check_fatal(s);
                
            case WORK_MORE_A:
            case WORK_MORE_B:
            case WORK_MORE_C:
                return SUB_STATE_ERROR;

            case WORK_FINISHED_CONTINUE:
                st->write_state = WRITE_STATE_SEND;
                break;

            case WORK_FINISHED_STOP:
                return SUB_STATE_END_HANDSHAKE;
            }
            if (!get_construct_message_f(s, &confunc, &mt)) {
                
                return SUB_STATE_ERROR;
            }
            if (mt == SSL3_MT_DUMMY) {
                
                st->write_state = WRITE_STATE_POST_WORK;
                st->write_state_work = WORK_MORE_A;
                break;
            }
            if (!WPACKET_init(&pkt, s->init_buf)
                    || !ssl_set_handshake_header(s, &pkt, mt)) {
                WPACKET_cleanup(&pkt);
                SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
                return SUB_STATE_ERROR;
            }
            if (confunc != NULL) {
                CON_FUNC_RETURN tmpret;

                tmpret = confunc(s, &pkt);
                if (tmpret == CON_FUNC_ERROR) {
                    WPACKET_cleanup(&pkt);
                    check_fatal(s);
                    return SUB_STATE_ERROR;
                } else if (tmpret == CON_FUNC_DONT_SEND) {
                    
                    WPACKET_cleanup(&pkt);
                    st->write_state = WRITE_STATE_POST_WORK;
                    st->write_state_work = WORK_MORE_A;
                    break;
                } 
            }
            if (!ssl_close_construct_packet(s, &pkt, mt)
                    || !WPACKET_finish(&pkt)) {
                WPACKET_cleanup(&pkt);
                SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
                return SUB_STATE_ERROR;
            }

            

        case WRITE_STATE_SEND:
            if (SSL_CONNECTION_IS_DTLS(s) && st->use_timer) {
                dtls1_start_timer(s);
            }
            ret = statem_do_write(s);
            if (ret <= 0) {
                return SUB_STATE_ERROR;
            }
            st->write_state = WRITE_STATE_POST_WORK;
            st->write_state_work = WORK_MORE_A;
            

        case WRITE_STATE_POST_WORK:
            switch (st->write_state_work = post_work(s, st->write_state_work)) {
            case WORK_ERROR:
                check_fatal(s);
                
            case WORK_MORE_A:
            case WORK_MORE_B:
            case WORK_MORE_C:
                return SUB_STATE_ERROR;

            case WORK_FINISHED_CONTINUE:
                st->write_state = WRITE_STATE_TRANSITION;
                break;

            case WORK_FINISHED_STOP:
                return SUB_STATE_END_HANDSHAKE;
            }
            break;

        default:
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
            return SUB_STATE_ERROR;
        }
    }
}


int statem_flush(SSL_CONNECTION *s)
{
    s->rwstate = SSL_WRITING;
    if (BIO_flush(s->wbio) <= 0) {
        return 0;
    }
    s->rwstate = SSL_NOTHING;

    return 1;
}


int ossl_statem_app_data_allowed(SSL_CONNECTION *s)
{
    OSSL_STATEM *st = &s->statem;

    if (st->state == MSG_FLOW_UNINITED)
        return 0;

    if (!s->s3.in_read_app_data || (s->s3.total_renegotiations == 0))
        return 0;

    if (s->server) {
        
        if (st->hand_state == TLS_ST_BEFORE
            || st->hand_state == TLS_ST_SR_CLNT_HELLO)
            return 1;
    } else {
        
        if (st->hand_state == TLS_ST_CW_CLNT_HELLO)
            return 1;
    }

    return 0;
}


int ossl_statem_export_allowed(SSL_CONNECTION *s)
{
    return s->s3.previous_server_finished_len != 0
           && s->statem.hand_state != TLS_ST_SW_FINISHED;
}


int ossl_statem_export_early_allowed(SSL_CONNECTION *s)
{
    
    return s->ext.early_data == SSL_EARLY_DATA_ACCEPTED
           || (!s->server && s->ext.early_data != SSL_EARLY_DATA_NOT_SENT);
}
