


#include "internal/deprecated.h"

#include "eng_local.h"
#include <openssl/evp.h>

static ENGINE_TABLE *pkey_meth_table = NULL;

void ENGINE_unregister_pkey_meths(ENGINE *e)
{
    engine_table_unregister(&pkey_meth_table, e);
}

static void engine_unregister_all_pkey_meths(void)
{
    engine_table_cleanup(&pkey_meth_table);
}

int ENGINE_register_pkey_meths(ENGINE *e)
{
    if (e->pkey_meths) {
        const int *nids;
        int num_nids = e->pkey_meths(e, NULL, &nids, 0);
        if (num_nids > 0)
            return engine_table_register(&pkey_meth_table,
                                         engine_unregister_all_pkey_meths, e,
                                         nids, num_nids, 0);
    }
    return 1;
}

void ENGINE_register_all_pkey_meths(void)
{
    ENGINE *e;

    for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
        ENGINE_register_pkey_meths(e);
}

int ENGINE_set_default_pkey_meths(ENGINE *e)
{
    if (e->pkey_meths) {
        const int *nids;
        int num_nids = e->pkey_meths(e, NULL, &nids, 0);
        if (num_nids > 0)
            return engine_table_register(&pkey_meth_table,
                                         engine_unregister_all_pkey_meths, e,
                                         nids, num_nids, 1);
    }
    return 1;
}


ENGINE *ENGINE_get_pkey_meth_engine(int nid)
{
    return ossl_engine_table_select(&pkey_meth_table, nid,
                                    OPENSSL_FILE, OPENSSL_LINE);
}


const EVP_PKEY_METHOD *ENGINE_get_pkey_meth(ENGINE *e, int nid)
{
    EVP_PKEY_METHOD *ret;
    ENGINE_PKEY_METHS_PTR fn = ENGINE_get_pkey_meths(e);
    if (!fn || !fn(e, &ret, NULL, nid)) {
        ERR_raise(ERR_LIB_ENGINE, ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD);
        return NULL;
    }
    return ret;
}


ENGINE_PKEY_METHS_PTR ENGINE_get_pkey_meths(const ENGINE *e)
{
    return e->pkey_meths;
}


int ENGINE_set_pkey_meths(ENGINE *e, ENGINE_PKEY_METHS_PTR f)
{
    e->pkey_meths = f;
    return 1;
}



void engine_pkey_meths_free(ENGINE *e)
{
    int i;
    EVP_PKEY_METHOD *pkm;
    if (e->pkey_meths) {
        const int *pknids;
        int npknids;
        npknids = e->pkey_meths(e, NULL, &pknids, 0);
        for (i = 0; i < npknids; i++) {
            if (e->pkey_meths(e, &pkm, NULL, pknids[i])) {
                EVP_PKEY_meth_free(pkm);
            }
        }
    }
}
