[thirdparty/openssl.git] / crypto / asn1 / ameth_lib.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
 */

/* We need to use some engine deprecated APIs */
#define OPENSSL_SUPPRESS_DEPRECATED

#include "e_os.h"               /* for strncasecmp */
#include "internal/cryptlib.h"
#include <stdio.h>
#include <openssl/asn1t.h>
#include <openssl/x509.h>
#include <openssl/engine.h>
#include "crypto/asn1.h"
#include "crypto/evp.h"

#include "standard_methods.h"

typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL;

DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
                           const EVP_PKEY_ASN1_METHOD *, ameth);

static int ameth_cmp(const EVP_PKEY_ASN1_METHOD *const *a,
                     const EVP_PKEY_ASN1_METHOD *const *b)
{
    return ((*a)->pkey_id - (*b)->pkey_id);
}

IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
                             const EVP_PKEY_ASN1_METHOD *, ameth);

int EVP_PKEY_asn1_get_count(void)
{
    int num = OSSL_NELEM(standard_methods);
    if (app_methods)
        num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
    return num;
}

const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
{
    int num = OSSL_NELEM(standard_methods);
    if (idx < 0)
        return NULL;
    if (idx < num)
        return standard_methods[idx];
    idx -= num;
    return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
}

static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
{
    EVP_PKEY_ASN1_METHOD tmp;
    const EVP_PKEY_ASN1_METHOD *t = &tmp, **ret;

    tmp.pkey_id = type;
    if (app_methods) {
        int idx;
        idx = sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp);
        if (idx >= 0)
            return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
    }
    ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods));
    if (ret == NULL || *ret == NULL)
        return NULL;
    return *ret;
}

/*
 * Find an implementation of an ASN1 algorithm. If 'pe' is not NULL also
 * search through engines and set *pe to a functional reference to the engine
 * implementing 'type' or NULL if no engine implements it.
 */

const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type)
{
    const EVP_PKEY_ASN1_METHOD *t;

    for (;;) {
        t = pkey_asn1_find(type);
        if (!t || !(t->pkey_flags & ASN1_PKEY_ALIAS))
            break;
        type = t->pkey_base_id;
    }
    if (pe) {
#ifndef OPENSSL_NO_ENGINE
        ENGINE *e;
        /* type will contain the final unaliased type */
        e = ENGINE_get_pkey_asn1_meth_engine(type);
        if (e) {
            *pe = e;
            return ENGINE_get_pkey_asn1_meth(e, type);
        }
#endif
        *pe = NULL;
    }
    return t;
}

const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
                                                   const char *str, int len)
{
    int i;
    const EVP_PKEY_ASN1_METHOD *ameth = NULL;

    if (len == -1)
        len = strlen(str);
    if (pe) {
#ifndef OPENSSL_NO_ENGINE
        ENGINE *e;
        ameth = ENGINE_pkey_asn1_find_str(&e, str, len);
        if (ameth) {
            /*
             * Convert structural into functional reference
             */
            if (!ENGINE_init(e))
                ameth = NULL;
            ENGINE_free(e);
            *pe = e;
            return ameth;
        }
#endif
        *pe = NULL;
    }
    for (i = EVP_PKEY_asn1_get_count(); i-- > 0; ) {
        ameth = EVP_PKEY_asn1_get0(i);
        if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
            continue;
        if ((int)strlen(ameth->pem_str) == len
            && strncasecmp(ameth->pem_str, str, len) == 0)
            return ameth;
    }
    return NULL;
}

int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
{
    EVP_PKEY_ASN1_METHOD tmp = { 0, };

    /*
     * One of the following must be true:
     *
     * pem_str == NULL AND ASN1_PKEY_ALIAS is set
     * pem_str != NULL AND ASN1_PKEY_ALIAS is clear
     *
     * Anything else is an error and may lead to a corrupt ASN1 method table
     */
    if (!((ameth->pem_str == NULL
           && (ameth->pkey_flags & ASN1_PKEY_ALIAS) != 0)
          || (ameth->pem_str != NULL
              && (ameth->pkey_flags & ASN1_PKEY_ALIAS) == 0))) {
        ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_INVALID_ARGUMENT);
        return 0;
    }

    if (app_methods == NULL) {
        app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
        if (app_methods == NULL)
            return 0;
    }

    tmp.pkey_id = ameth->pkey_id;
    if (sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp) >= 0) {
        ERR_raise(ERR_LIB_EVP,
                  EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED);
        return 0;
    }

    if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
        return 0;
    sk_EVP_PKEY_ASN1_METHOD_sort(app_methods);
    return 1;
}

int EVP_PKEY_asn1_add_alias(int to, int from)
{
    EVP_PKEY_ASN1_METHOD *ameth;
    ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
    if (ameth == NULL)
        return 0;
    ameth->pkey_base_id = to;
    if (!EVP_PKEY_asn1_add0(ameth)) {
        EVP_PKEY_asn1_free(ameth);
        return 0;
    }
    return 1;
}

int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *ppkey_base_id,
                            int *ppkey_flags, const char **pinfo,
                            const char **ppem_str,
                            const EVP_PKEY_ASN1_METHOD *ameth)
{
    if (!ameth)
        return 0;
    if (ppkey_id)
        *ppkey_id = ameth->pkey_id;
    if (ppkey_base_id)
        *ppkey_base_id = ameth->pkey_base_id;
    if (ppkey_flags)
        *ppkey_flags = ameth->pkey_flags;
    if (pinfo)
        *pinfo = ameth->info;
    if (ppem_str)
        *ppem_str = ameth->pem_str;
    return 1;
}

const EVP_PKEY_ASN1_METHOD *EVP_PKEY_get0_asn1(const EVP_PKEY *pkey)
{
    return pkey->ameth;
}

EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags,
                                        const char *pem_str, const char *info)
{
    EVP_PKEY_ASN1_METHOD *ameth = OPENSSL_zalloc(sizeof(*ameth));

    if (ameth == NULL) {
        ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
        return NULL;
    }

    ameth->pkey_id = id;
    ameth->pkey_base_id = id;
    ameth->pkey_flags = flags | ASN1_PKEY_DYNAMIC;

    if (info) {
        ameth->info = OPENSSL_strdup(info);
        if (ameth->info == NULL)
            goto err;
    }

    if (pem_str) {
        ameth->pem_str = OPENSSL_strdup(pem_str);
        if (ameth->pem_str == NULL)
            goto err;
    }

    return ameth;

 err:
    EVP_PKEY_asn1_free(ameth);
    ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
    return NULL;
}

void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
                        const EVP_PKEY_ASN1_METHOD *src)
{
    int pkey_id = dst->pkey_id;
    int pkey_base_id = dst->pkey_base_id;
    unsigned long pkey_flags = dst->pkey_flags;
    char *pem_str = dst->pem_str;
    char *info = dst->info;

    *dst = *src;

    /* We only copy the function pointers so restore the other values */
    dst->pkey_id = pkey_id;
    dst->pkey_base_id = pkey_base_id;
    dst->pkey_flags = pkey_flags;
    dst->pem_str = pem_str;
    dst->info = info;
}

void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
{
    if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) {
        OPENSSL_free(ameth->pem_str);
        OPENSSL_free(ameth->info);
        OPENSSL_free(ameth);
    }
}

void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
                              int (*pub_decode) (EVP_PKEY *pk,
                                                 const X509_PUBKEY *pub),
                              int (*pub_encode) (X509_PUBKEY *pub,
                                                 const EVP_PKEY *pk),
                              int (*pub_cmp) (const EVP_PKEY *a,
                                              const EVP_PKEY *b),
                              int (*pub_print) (BIO *out,
                                                const EVP_PKEY *pkey,
                                                int indent, ASN1_PCTX *pctx),
                              int (*pkey_size) (const EVP_PKEY *pk),
                              int (*pkey_bits) (const EVP_PKEY *pk))
{
    ameth->pub_decode = pub_decode;
    ameth->pub_encode = pub_encode;
    ameth->pub_cmp = pub_cmp;
    ameth->pub_print = pub_print;
    ameth->pkey_size = pkey_size;
    ameth->pkey_bits = pkey_bits;
}

void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
                               int (*priv_decode) (EVP_PKEY *pk,
                                                   const PKCS8_PRIV_KEY_INFO
                                                   *p8inf),
                               int (*priv_encode) (PKCS8_PRIV_KEY_INFO *p8,
                                                   const EVP_PKEY *pk),
                               int (*priv_print) (BIO *out,
                                                  const EVP_PKEY *pkey,
                                                  int indent,
                                                  ASN1_PCTX *pctx))
{
    ameth->priv_decode = priv_decode;
    ameth->priv_encode = priv_encode;
    ameth->priv_print = priv_print;
}

void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
                             int (*param_decode) (EVP_PKEY *pkey,
                                                  const unsigned char **pder,
                                                  int derlen),
                             int (*param_encode) (const EVP_PKEY *pkey,
                                                  unsigned char **pder),
                             int (*param_missing) (const EVP_PKEY *pk),
                             int (*param_copy) (EVP_PKEY *to,
                                                const EVP_PKEY *from),
                             int (*param_cmp) (const EVP_PKEY *a,
                                               const EVP_PKEY *b),
                             int (*param_print) (BIO *out,
                                                 const EVP_PKEY *pkey,
                                                 int indent, ASN1_PCTX *pctx))
{
    ameth->param_decode = param_decode;
    ameth->param_encode = param_encode;
    ameth->param_missing = param_missing;
    ameth->param_copy = param_copy;
    ameth->param_cmp = param_cmp;
    ameth->param_print = param_print;
}

void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
                            void (*pkey_free) (EVP_PKEY *pkey))
{
    ameth->pkey_free = pkey_free;
}

void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
                            int (*pkey_ctrl) (EVP_PKEY *pkey, int op,
                                              long arg1, void *arg2))
{
    ameth->pkey_ctrl = pkey_ctrl;
}

void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
                                     int (*pkey_security_bits) (const EVP_PKEY
                                                                *pk))
{
    ameth->pkey_security_bits = pkey_security_bits;
}

void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
                            int (*item_verify) (EVP_MD_CTX *ctx,
                                                const ASN1_ITEM *it,
                                                const void *data,
                                                const X509_ALGOR *a,
                                                const ASN1_BIT_STRING *sig,
                                                EVP_PKEY *pkey),
                            int (*item_sign) (EVP_MD_CTX *ctx,
                                              const ASN1_ITEM *it,
                                              const void *data,
                                              X509_ALGOR *alg1,
                                              X509_ALGOR *alg2,
                                              ASN1_BIT_STRING *sig))
{
    ameth->item_sign = item_sign;
    ameth->item_verify = item_verify;
}

void EVP_PKEY_asn1_set_siginf(EVP_PKEY_ASN1_METHOD *ameth,
                              int (*siginf_set) (X509_SIG_INFO *siginf,
                                                 const X509_ALGOR *alg,
                                                 const ASN1_STRING *sig))
{
    ameth->siginf_set = siginf_set;
}

void EVP_PKEY_asn1_set_check(EVP_PKEY_ASN1_METHOD *ameth,
                             int (*pkey_check) (const EVP_PKEY *pk))
{
    ameth->pkey_check = pkey_check;
}

void EVP_PKEY_asn1_set_public_check(EVP_PKEY_ASN1_METHOD *ameth,
                                    int (*pkey_pub_check) (const EVP_PKEY *pk))
{
    ameth->pkey_public_check = pkey_pub_check;
}

void EVP_PKEY_asn1_set_param_check(EVP_PKEY_ASN1_METHOD *ameth,
                                   int (*pkey_param_check) (const EVP_PKEY *pk))
{
    ameth->pkey_param_check = pkey_param_check;
}

void EVP_PKEY_asn1_set_set_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
                                    int (*set_priv_key) (EVP_PKEY *pk,
                                                         const unsigned char
                                                            *priv,
                                                         size_t len))
{
    ameth->set_priv_key = set_priv_key;
}

void EVP_PKEY_asn1_set_set_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
                                   int (*set_pub_key) (EVP_PKEY *pk,
                                                       const unsigned char *pub,
                                                       size_t len))
{
    ameth->set_pub_key = set_pub_key;
}

void EVP_PKEY_asn1_set_get_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
                                    int (*get_priv_key) (const EVP_PKEY *pk,
                                                         unsigned char *priv,
                                                         size_t *len))
{
    ameth->get_priv_key = get_priv_key;
}

void EVP_PKEY_asn1_set_get_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
                                   int (*get_pub_key) (const EVP_PKEY *pk,
                                                       unsigned char *pub,
                                                       size_t *len))
{
    ameth->get_pub_key = get_pub_key;
}
Commit	Line	Data
0f113f3e	1	/*
f5afac4b	2	* Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved.
448be743	3	*
365a2d99	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
b1322259 RS	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
448be743 DSH	8	*/
448be743 DSH	9
e4468e6d P	10	/* We need to use some engine deprecated APIs */
	11	#define OPENSSL_SUPPRESS_DEPRECATED
	12
677963e5	13	#include "e_os.h" /* for strncasecmp */
b39fc560	14	#include "internal/cryptlib.h"
677963e5	15	#include <stdio.h>
448be743 DSH	16	#include <openssl/asn1t.h>
448be743 DSH	17	#include <openssl/x509.h>
3c27208f	18	#include <openssl/engine.h>
25f2138b DMSP	19	#include "crypto/asn1.h"
25f2138b DMSP	20	#include "crypto/evp.h"
448be743	21
2c166171	22	#include "standard_methods.h"
448be743	23
0f113f3e	24	typedef int sk_cmp_fn_type(const char const a, const char const b);
5ce278a7	25	static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL;
18e377b4	26
606f6c47	27	DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
0f113f3e	28	const EVP_PKEY_ASN1_METHOD *, ameth);
babb3798	29
0f113f3e MC	30	static int ameth_cmp(const EVP_PKEY_ASN1_METHOD const a,
	31	const EVP_PKEY_ASN1_METHOD const b)
	32	{
	33	return ((a)->pkey_id - (b)->pkey_id);
	34	}
448be743	35
606f6c47	36	IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
0f113f3e	37	const EVP_PKEY_ASN1_METHOD *, ameth);
babb3798	38
e4263314	39	int EVP_PKEY_asn1_get_count(void)
0f113f3e	40	{
b6eb9827	41	int num = OSSL_NELEM(standard_methods);
0f113f3e MC	42	if (app_methods)
	43	num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
	44	return num;
	45	}
e4263314 DSH	46
e4263314 DSH	47	const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
0f113f3e	48	{
b6eb9827	49	int num = OSSL_NELEM(standard_methods);
0f113f3e MC	50	if (idx < 0)
	51	return NULL;
	52	if (idx < num)
	53	return standard_methods[idx];
	54	idx -= num;
	55	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
	56	}
e4263314	57
01b8b3c7	58	static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
0f113f3e MC	59	{
	60	EVP_PKEY_ASN1_METHOD tmp;
	61	const EVP_PKEY_ASN1_METHOD t = &tmp, *ret;
12a765a5	62
0f113f3e MC	63	tmp.pkey_id = type;
	64	if (app_methods) {
	65	int idx;
	66	idx = sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp);
	67	if (idx >= 0)
	68	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
	69	}
b6eb9827	70	ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods));
12a765a5	71	if (ret == NULL \|\| *ret == NULL)
0f113f3e MC	72	return NULL;
	73	return *ret;
	74	}
	75
	76	/*
	77	* Find an implementation of an ASN1 algorithm. If 'pe' is not NULL also
	78	* search through engines and set *pe to a functional reference to the engine
	79	* implementing 'type' or NULL if no engine implements it.
01b8b3c7 DSH	80	*/
	81
	82	const EVP_PKEY_ASN1_METHOD EVP_PKEY_asn1_find(ENGINE *pe, int type)
0f113f3e MC	83	{
	84	const EVP_PKEY_ASN1_METHOD *t;
	85
	86	for (;;) {
	87	t = pkey_asn1_find(type);
	88	if (!t \|\| !(t->pkey_flags & ASN1_PKEY_ALIAS))
	89	break;
	90	type = t->pkey_base_id;
	91	}
	92	if (pe) {
01b8b3c7	93	#ifndef OPENSSL_NO_ENGINE
0f113f3e MC	94	ENGINE *e;
	95	/* type will contain the final unaliased type */
	96	e = ENGINE_get_pkey_asn1_meth_engine(type);
	97	if (e) {
	98	*pe = e;
	99	return ENGINE_get_pkey_asn1_meth(e, type);
	100	}
01b8b3c7	101	#endif
0f113f3e MC	102	*pe = NULL;
	103	}
	104	return t;
	105	}
01b8b3c7 DSH	106
01b8b3c7 DSH	107	const EVP_PKEY_ASN1_METHOD EVP_PKEY_asn1_find_str(ENGINE *pe,
0f113f3e MC	108	const char *str, int len)
	109	{
	110	int i;
3bf0c3fe RL	111	const EVP_PKEY_ASN1_METHOD *ameth = NULL;
3bf0c3fe RL	112
0f113f3e MC	113	if (len == -1)
	114	len = strlen(str);
	115	if (pe) {
01b8b3c7	116	#ifndef OPENSSL_NO_ENGINE
0f113f3e MC	117	ENGINE *e;
	118	ameth = ENGINE_pkey_asn1_find_str(&e, str, len);
	119	if (ameth) {
	120	/*
	121	* Convert structural into functional reference
	122	*/
	123	if (!ENGINE_init(e))
	124	ameth = NULL;
	125	ENGINE_free(e);
	126	*pe = e;
	127	return ameth;
	128	}
01b8b3c7	129	#endif
0f113f3e MC	130	*pe = NULL;
0f113f3e MC	131	}
3bf0c3fe	132	for (i = EVP_PKEY_asn1_get_count(); i-- > 0; ) {
0f113f3e MC	133	ameth = EVP_PKEY_asn1_get0(i);
	134	if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
	135	continue;
3bf0c3fe RL	136	if ((int)strlen(ameth->pem_str) == len
3bf0c3fe RL	137	&& strncasecmp(ameth->pem_str, str, len) == 0)
0f113f3e MC	138	return ameth;
	139	}
	140	return NULL;
	141	}
e4263314	142
e46691a0	143	int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
0f113f3e	144	{
3bf0c3fe RL	145	EVP_PKEY_ASN1_METHOD tmp = { 0, };
3bf0c3fe RL	146
a8600316 RL	147	/*
	148	* One of the following must be true:
	149	*
	150	* pem_str == NULL AND ASN1_PKEY_ALIAS is set
	151	* pem_str != NULL AND ASN1_PKEY_ALIAS is clear
	152	*
	153	* Anything else is an error and may lead to a corrupt ASN1 method table
	154	*/
	155	if (!((ameth->pem_str == NULL
	156	&& (ameth->pkey_flags & ASN1_PKEY_ALIAS) != 0)
	157	\|\| (ameth->pem_str != NULL
	158	&& (ameth->pkey_flags & ASN1_PKEY_ALIAS) == 0))) {
9311d0c4	159	ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_INVALID_ARGUMENT);
a8600316 RL	160	return 0;
	161	}
	162
0f113f3e MC	163	if (app_methods == NULL) {
0f113f3e MC	164	app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
90945fa3	165	if (app_methods == NULL)
0f113f3e MC	166	return 0;
0f113f3e MC	167	}
3bf0c3fe RL	168
	169	tmp.pkey_id = ameth->pkey_id;
	170	if (sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp) >= 0) {
9311d0c4 RL	171	ERR_raise(ERR_LIB_EVP,
9311d0c4 RL	172	EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED);
3bf0c3fe RL	173	return 0;
	174	}
	175
0f113f3e MC	176	if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
	177	return 0;
	178	sk_EVP_PKEY_ASN1_METHOD_sort(app_methods);
	179	return 1;
	180	}
18e377b4	181
e46691a0	182	int EVP_PKEY_asn1_add_alias(int to, int from)
0f113f3e MC	183	{
	184	EVP_PKEY_ASN1_METHOD *ameth;
	185	ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
90945fa3	186	if (ameth == NULL)
0f113f3e MC	187	return 0;
	188	ameth->pkey_base_id = to;
	189	if (!EVP_PKEY_asn1_add0(ameth)) {
	190	EVP_PKEY_asn1_free(ameth);
	191	return 0;
	192	}
	193	return 1;
	194	}
	195
	196	int EVP_PKEY_asn1_get0_info(int ppkey_id, int ppkey_base_id,
	197	int ppkey_flags, const char *pinfo,
	198	const char **ppem_str,
	199	const EVP_PKEY_ASN1_METHOD *ameth)
	200	{
	201	if (!ameth)
	202	return 0;
	203	if (ppkey_id)
	204	*ppkey_id = ameth->pkey_id;
	205	if (ppkey_base_id)
	206	*ppkey_base_id = ameth->pkey_base_id;
	207	if (ppkey_flags)
	208	*ppkey_flags = ameth->pkey_flags;
	209	if (pinfo)
	210	*pinfo = ameth->info;
	211	if (ppem_str)
	212	*ppem_str = ameth->pem_str;
	213	return 1;
	214	}
	215
8900f3e3	216	const EVP_PKEY_ASN1_METHOD EVP_PKEY_get0_asn1(const EVP_PKEY pkey)
0f113f3e MC	217	{
	218	return pkey->ameth;
	219	}
	220
	221	EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags,
	222	const char pem_str, const char info)
	223	{
b51bce94 RS	224	EVP_PKEY_ASN1_METHOD ameth = OPENSSL_zalloc(sizeof(ameth));
b51bce94 RS	225
89947af2 F	226	if (ameth == NULL) {
89947af2 F	227	ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
0f113f3e	228	return NULL;
89947af2	229	}
0f113f3e	230
0f113f3e MC	231	ameth->pkey_id = id;
	232	ameth->pkey_base_id = id;
	233	ameth->pkey_flags = flags \| ASN1_PKEY_DYNAMIC;
	234
	235	if (info) {
7644a9ae	236	ameth->info = OPENSSL_strdup(info);
89947af2	237	if (ameth->info == NULL)
0f113f3e	238	goto err;
64b25758	239	}
0f113f3e MC	240
0f113f3e MC	241	if (pem_str) {
7644a9ae	242	ameth->pem_str = OPENSSL_strdup(pem_str);
89947af2	243	if (ameth->pem_str == NULL)
0f113f3e	244	goto err;
64b25758	245	}
0f113f3e MC	246
	247	return ameth;
	248
	249	err:
0f113f3e	250	EVP_PKEY_asn1_free(ameth);
89947af2	251	ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
0f113f3e	252	return NULL;
0f113f3e MC	253	}
	254
	255	void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
	256	const EVP_PKEY_ASN1_METHOD *src)
	257	{
472a88b7 MC	258	int pkey_id = dst->pkey_id;
	259	int pkey_base_id = dst->pkey_base_id;
	260	unsigned long pkey_flags = dst->pkey_flags;
	261	char *pem_str = dst->pem_str;
	262	char *info = dst->info;
	263
	264	dst = src;
	265
	266	/* We only copy the function pointers so restore the other values */
	267	dst->pkey_id = pkey_id;
	268	dst->pkey_base_id = pkey_base_id;
	269	dst->pkey_flags = pkey_flags;
	270	dst->pem_str = pem_str;
	271	dst->info = info;
0f113f3e	272	}
e69adea5	273
d82e2718	274	void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
0f113f3e MC	275	{
0f113f3e MC	276	if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) {
b548a1f1 RS	277	OPENSSL_free(ameth->pem_str);
b548a1f1 RS	278	OPENSSL_free(ameth->info);
0f113f3e MC	279	OPENSSL_free(ameth);
	280	}
	281	}
18e377b4 DSH	282
18e377b4 DSH	283	void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
0f113f3e	284	int (pub_decode) (EVP_PKEY pk,
7674e923	285	const X509_PUBKEY *pub),
0f113f3e MC	286	int (pub_encode) (X509_PUBKEY pub,
	287	const EVP_PKEY *pk),
	288	int (pub_cmp) (const EVP_PKEY a,
	289	const EVP_PKEY *b),
	290	int (pub_print) (BIO out,
	291	const EVP_PKEY *pkey,
	292	int indent, ASN1_PCTX *pctx),
	293	int (pkey_size) (const EVP_PKEY pk),
	294	int (pkey_bits) (const EVP_PKEY pk))
	295	{
	296	ameth->pub_decode = pub_decode;
	297	ameth->pub_encode = pub_encode;
	298	ameth->pub_cmp = pub_cmp;
	299	ameth->pub_print = pub_print;
	300	ameth->pkey_size = pkey_size;
	301	ameth->pkey_bits = pkey_bits;
	302	}
18e377b4 DSH	303
18e377b4 DSH	304	void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
0f113f3e	305	int (priv_decode) (EVP_PKEY pk,
245c6bc3	306	const PKCS8_PRIV_KEY_INFO
0f113f3e MC	307	*p8inf),
	308	int (priv_encode) (PKCS8_PRIV_KEY_INFO p8,
	309	const EVP_PKEY *pk),
	310	int (priv_print) (BIO out,
	311	const EVP_PKEY *pkey,
	312	int indent,
	313	ASN1_PCTX *pctx))
	314	{
	315	ameth->priv_decode = priv_decode;
	316	ameth->priv_encode = priv_encode;
	317	ameth->priv_print = priv_print;
	318	}
18e377b4 DSH	319
18e377b4 DSH	320	void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
0f113f3e MC	321	int (param_decode) (EVP_PKEY pkey,
	322	const unsigned char **pder,
	323	int derlen),
	324	int (param_encode) (const EVP_PKEY pkey,
	325	unsigned char **pder),
	326	int (param_missing) (const EVP_PKEY pk),
	327	int (param_copy) (EVP_PKEY to,
	328	const EVP_PKEY *from),
	329	int (param_cmp) (const EVP_PKEY a,
	330	const EVP_PKEY *b),
	331	int (param_print) (BIO out,
	332	const EVP_PKEY *pkey,
	333	int indent, ASN1_PCTX *pctx))
	334	{
	335	ameth->param_decode = param_decode;
	336	ameth->param_encode = param_encode;
	337	ameth->param_missing = param_missing;
	338	ameth->param_copy = param_copy;
	339	ameth->param_cmp = param_cmp;
	340	ameth->param_print = param_print;
	341	}
18e377b4 DSH	342
18e377b4 DSH	343	void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
0f113f3e MC	344	void (pkey_free) (EVP_PKEY pkey))
	345	{
	346	ameth->pkey_free = pkey_free;
	347	}
18e377b4 DSH	348
18e377b4 DSH	349	void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
0f113f3e MC	350	int (pkey_ctrl) (EVP_PKEY pkey, int op,
	351	long arg1, void *arg2))
	352	{
	353	ameth->pkey_ctrl = pkey_ctrl;
	354	}
2514fa79 DSH	355
2514fa79 DSH	356	void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
0f113f3e MC	357	int (*pkey_security_bits) (const EVP_PKEY
	358	*pk))
	359	{
	360	ameth->pkey_security_bits = pkey_security_bits;
	361	}
3418f7b7 SA	362
	363	void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
	364	int (item_verify) (EVP_MD_CTX ctx,
	365	const ASN1_ITEM *it,
ded346fa DDO	366	const void *data,
	367	const X509_ALGOR *a,
	368	const ASN1_BIT_STRING *sig,
3418f7b7 SA	369	EVP_PKEY *pkey),
	370	int (item_sign) (EVP_MD_CTX ctx,
	371	const ASN1_ITEM *it,
ded346fa	372	const void *data,
3418f7b7 SA	373	X509_ALGOR *alg1,
	374	X509_ALGOR *alg2,
	375	ASN1_BIT_STRING *sig))
	376	{
	377	ameth->item_sign = item_sign;
	378	ameth->item_verify = item_verify;
	379	}
5e006082 RL	380
	381	void EVP_PKEY_asn1_set_siginf(EVP_PKEY_ASN1_METHOD *ameth,
	382	int (siginf_set) (X509_SIG_INFO siginf,
	383	const X509_ALGOR *alg,
	384	const ASN1_STRING *sig))
	385	{
	386	ameth->siginf_set = siginf_set;
	387	}
	388
	389	void EVP_PKEY_asn1_set_check(EVP_PKEY_ASN1_METHOD *ameth,
	390	int (pkey_check) (const EVP_PKEY pk))
	391	{
	392	ameth->pkey_check = pkey_check;
	393	}
b0004708 PY	394
	395	void EVP_PKEY_asn1_set_public_check(EVP_PKEY_ASN1_METHOD *ameth,
	396	int (pkey_pub_check) (const EVP_PKEY pk))
	397	{
	398	ameth->pkey_public_check = pkey_pub_check;
	399	}
	400
	401	void EVP_PKEY_asn1_set_param_check(EVP_PKEY_ASN1_METHOD *ameth,
	402	int (pkey_param_check) (const EVP_PKEY pk))
	403	{
	404	ameth->pkey_param_check = pkey_param_check;
	405	}
e8f9f08f MC	406
	407	void EVP_PKEY_asn1_set_set_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
	408	int (set_priv_key) (EVP_PKEY pk,
	409	const unsigned char
	410	*priv,
	411	size_t len))
	412	{
	413	ameth->set_priv_key = set_priv_key;
	414	}
	415
	416	void EVP_PKEY_asn1_set_set_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
	417	int (set_pub_key) (EVP_PKEY pk,
	418	const unsigned char *pub,
	419	size_t len))
	420	{
	421	ameth->set_pub_key = set_pub_key;
	422	}
72ff0a54 MC	423
	424	void EVP_PKEY_asn1_set_get_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
	425	int (get_priv_key) (const EVP_PKEY pk,
	426	unsigned char *priv,
	427	size_t *len))
	428	{
	429	ameth->get_priv_key = get_priv_key;
	430	}
	431
	432	void EVP_PKEY_asn1_set_get_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
	433	int (get_pub_key) (const EVP_PKEY pk,
	434	unsigned char *pub,
	435	size_t *len))
	436	{
	437	ameth->get_pub_key = get_pub_key;
	438	}