[thirdparty/openssl.git] / crypto / pem / pem_pkey.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>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pkcs12.h>
#include <openssl/pem.h>
#include <openssl/engine.h>
#include <openssl/dh.h>
#include <openssl/store.h>
#include <openssl/ui.h>
#include "crypto/store.h"
#include "crypto/asn1.h"
#include "crypto/evp.h"
#include "pem_local.h"

int pem_check_suffix(const char *pem_str, const char *suffix);

static EVP_PKEY *pem_read_bio_key(BIO *bp, EVP_PKEY **x,
                                  pem_password_cb *cb, void *u,
                                  OPENSSL_CTX *libctx, const char *propq,
                                  int expected_store_info_type,
                                  int try_secure)
{
    EVP_PKEY *ret = NULL;
    OSSL_STORE_CTX *ctx = NULL;
    OSSL_STORE_INFO *info = NULL;
    const UI_METHOD *ui_method = NULL;
    UI_METHOD *allocated_ui_method = NULL;

    if (expected_store_info_type != OSSL_STORE_INFO_PKEY
        && expected_store_info_type != OSSL_STORE_INFO_PUBKEY
        && expected_store_info_type != OSSL_STORE_INFO_PARAMS) {
        ERR_raise(ERR_LIB_PEM, ERR_R_PASSED_INVALID_ARGUMENT);
        return NULL;
    }

    if (u != NULL && cb == NULL)
        cb = PEM_def_callback;
    if (cb == NULL)
        ui_method = UI_null();
    else
        ui_method = allocated_ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0);
    if (ui_method == NULL)
        return NULL;

    if ((ctx = OSSL_STORE_attach(bp, "file", libctx, propq, ui_method, u,
                                 NULL, NULL)) == NULL)
        goto err;
#ifndef OPENSSL_NO_SECURE_HEAP
   if (try_secure) {
        int on = 1;
        if (!OSSL_STORE_ctrl(ctx, OSSL_STORE_C_USE_SECMEM, &on))
            goto err;
    }
#endif

    while (!OSSL_STORE_eof(ctx)
           && (info = OSSL_STORE_load(ctx)) != NULL) {
        if (OSSL_STORE_INFO_get_type(info) == expected_store_info_type) {
            switch (expected_store_info_type) {
            case OSSL_STORE_INFO_PKEY:
                ret = OSSL_STORE_INFO_get1_PKEY(info);
                break;
            case OSSL_STORE_INFO_PUBKEY:
                ret = OSSL_STORE_INFO_get1_PUBKEY(info);
                break;
            case OSSL_STORE_INFO_PARAMS:
                ret = OSSL_STORE_INFO_get1_PARAMS(info);
                break;
            }
        }
        OSSL_STORE_INFO_free(info);
        info = NULL;
    }

    if (ret != NULL && x != NULL)
        *x = ret;

 err:
    OSSL_STORE_close(ctx);
    UI_destroy_method(allocated_ui_method);
    OSSL_STORE_INFO_free(info);
    return ret;
}

EVP_PKEY *PEM_read_bio_PUBKEY_ex(BIO *bp, EVP_PKEY **x,
                                 pem_password_cb *cb, void *u,
                                 OPENSSL_CTX *libctx, const char *propq)
{
    return pem_read_bio_key(bp, x, cb, u, libctx, propq,
                            OSSL_STORE_INFO_PUBKEY, 0);
}

EVP_PKEY *PEM_read_bio_PUBKEY(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
                              void *u)
{
    return PEM_read_bio_PUBKEY_ex(bp, x, cb, u, NULL, NULL);
}

#ifndef OPENSSL_NO_STDIO
EVP_PKEY *PEM_read_PUBKEY_ex(FILE *fp, EVP_PKEY **x,
                             pem_password_cb *cb, void *u,
                             OPENSSL_CTX *libctx, const char *propq)
{
    BIO *b;
    EVP_PKEY *ret;

    if ((b = BIO_new(BIO_s_file())) == NULL) {
        PEMerr(0, ERR_R_BUF_LIB);
        return 0;
    }
    BIO_set_fp(b, fp, BIO_NOCLOSE);
    ret = PEM_read_bio_PUBKEY_ex(b, x, cb, u, libctx, propq);
    BIO_free(b);
    return ret;
}

EVP_PKEY *PEM_read_PUBKEY(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
{
    return PEM_read_PUBKEY_ex(fp, x, cb, u, NULL, NULL);
}
#endif

EVP_PKEY *PEM_read_bio_PrivateKey_ex(BIO *bp, EVP_PKEY **x,
                                     pem_password_cb *cb, void *u,
                                     OPENSSL_CTX *libctx, const char *propq)
{
    return pem_read_bio_key(bp, x, cb, u, libctx, propq,
                            OSSL_STORE_INFO_PKEY, 1);
}

EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
                                  void *u)
{
    return PEM_read_bio_PrivateKey_ex(bp, x, cb, u, NULL, NULL);
}

PEM_write_cb_fnsig(PrivateKey, EVP_PKEY, BIO, write_bio)
{
    IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, PrivateKey);

    IMPLEMENT_PEM_provided_write_body_pass();
    IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);

 legacy:
    if (x->ameth == NULL || x->ameth->priv_encode != NULL)
        return PEM_write_bio_PKCS8PrivateKey(out, x, enc,
                                             (const char *)kstr, klen, cb, u);
    return PEM_write_bio_PrivateKey_traditional(out, x, enc, kstr, klen, cb, u);
}

int PEM_write_bio_PrivateKey_traditional(BIO *bp, const EVP_PKEY *x,
                                         const EVP_CIPHER *enc,
                                         const unsigned char *kstr, int klen,
                                         pem_password_cb *cb, void *u)
{
    char pem_str[80];
    BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
    return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
                              pem_str, bp, x, enc, kstr, klen, cb, u);
}

EVP_PKEY *PEM_read_bio_Parameters_ex(BIO *bp, EVP_PKEY **x,
                                     OPENSSL_CTX *libctx, const char *propq)
{
    return pem_read_bio_key(bp, x, NULL, NULL, libctx, propq,
                            OSSL_STORE_INFO_PARAMS, 0);
}

EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x)
{
    return PEM_read_bio_Parameters_ex(bp, x, NULL, NULL);
}

PEM_write_fnsig(Parameters, EVP_PKEY, BIO, write_bio)
{
    char pem_str[80];
    IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, Parameters);

    IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);

 legacy:
    if (!x->ameth || !x->ameth->param_encode)
        return 0;

    BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str);
    return PEM_ASN1_write_bio((i2d_of_void *)x->ameth->param_encode,
                              pem_str, out, x, NULL, NULL, 0, 0, NULL);
}

#ifndef OPENSSL_NO_STDIO
EVP_PKEY *PEM_read_PrivateKey_ex(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
                                 void *u, OPENSSL_CTX *libctx,
                                 const char *propq)
{
    BIO *b;
    EVP_PKEY *ret;

    if ((b = BIO_new(BIO_s_file())) == NULL) {
        PEMerr(0, ERR_R_BUF_LIB);
        return 0;
    }
    BIO_set_fp(b, fp, BIO_NOCLOSE);
    ret = PEM_read_bio_PrivateKey_ex(b, x, cb, u, libctx, propq);
    BIO_free(b);
    return ret;
}

EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
                              void *u)
{
    return PEM_read_PrivateKey_ex(fp, x, cb, u, NULL, NULL);
}

int PEM_write_PrivateKey(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
                         const unsigned char *kstr, int klen,
                         pem_password_cb *cb, void *u)
{
    BIO *b;
    int ret;

    if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) {
        PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB);
        return 0;
    }
    ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
    BIO_free(b);
    return ret;
}

#endif

#ifndef OPENSSL_NO_DH

/* Transparently read in PKCS#3 or X9.42 DH parameters */

DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u)
{
    DH *ret = NULL;
    EVP_PKEY *pkey = NULL;
    OSSL_STORE_CTX *ctx = NULL;
    OSSL_STORE_INFO *info = NULL;
    UI_METHOD *ui_method = NULL;

    if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
        return NULL;

    if ((ctx = OSSL_STORE_attach(bp, "file", NULL, NULL, ui_method, u,
                                 NULL, NULL)) == NULL)
        goto err;

    while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
        if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PARAMS) {
            pkey = OSSL_STORE_INFO_get0_PARAMS(info);
            if (EVP_PKEY_id(pkey) == EVP_PKEY_DHX
                || EVP_PKEY_id(pkey) == EVP_PKEY_DH) {
                ret = EVP_PKEY_get1_DH(pkey);
                break;
            }
        }
        OSSL_STORE_INFO_free(info);
        info = NULL;
    }

    if (ret != NULL && x != NULL)
        *x = ret;

 err:
    OSSL_STORE_close(ctx);
    UI_destroy_method(ui_method);
    OSSL_STORE_INFO_free(info);
    return ret;
}

# ifndef OPENSSL_NO_STDIO
DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u)
{
    BIO *b;
    DH *ret;

    if ((b = BIO_new(BIO_s_file())) == NULL) {
        PEMerr(PEM_F_PEM_READ_DHPARAMS, ERR_R_BUF_LIB);
        return 0;
    }
    BIO_set_fp(b, fp, BIO_NOCLOSE);
    ret = PEM_read_bio_DHparams(b, x, cb, u);
    BIO_free(b);
    return ret;
}
# endif

#endif
Commit	Line	Data
62867571	1	/*
33388b44	2	* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
1241126a	3	*
16742672	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
62867571 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
1241126a DSH	8	*/
	9
	10	#include <stdio.h>
b39fc560	11	#include "internal/cryptlib.h"
1241126a DSH	12	#include <openssl/buffer.h>
	13	#include <openssl/objects.h>
	14	#include <openssl/evp.h>
1241126a DSH	15	#include <openssl/x509.h>
	16	#include <openssl/pkcs12.h>
	17	#include <openssl/pem.h>
3c27208f RS	18	#include <openssl/engine.h>
3c27208f RS	19	#include <openssl/dh.h>
1427d33c RL	20	#include <openssl/store.h>
	21	#include <openssl/ui.h>
	22	#include "crypto/store.h"
25f2138b DMSP	23	#include "crypto/asn1.h"
25f2138b DMSP	24	#include "crypto/evp.h"
f864a939	25	#include "pem_local.h"
1241126a	26
e4263314	27	int pem_check_suffix(const char pem_str, const char suffix);
1241126a	28
6e5ccd58 RL	29	static EVP_PKEY pem_read_bio_key(BIO bp, EVP_PKEY **x,
	30	pem_password_cb cb, void u,
	31	OPENSSL_CTX libctx, const char propq,
	32	int expected_store_info_type,
	33	int try_secure)
0f113f3e	34	{
0f113f3e	35	EVP_PKEY *ret = NULL;
1427d33c RL	36	OSSL_STORE_CTX *ctx = NULL;
1427d33c RL	37	OSSL_STORE_INFO *info = NULL;
6e5ccd58 RL	38	const UI_METHOD *ui_method = NULL;
6e5ccd58 RL	39	UI_METHOD *allocated_ui_method = NULL;
1241126a	40
6e5ccd58 RL	41	if (expected_store_info_type != OSSL_STORE_INFO_PKEY
	42	&& expected_store_info_type != OSSL_STORE_INFO_PUBKEY
	43	&& expected_store_info_type != OSSL_STORE_INFO_PARAMS) {
	44	ERR_raise(ERR_LIB_PEM, ERR_R_PASSED_INVALID_ARGUMENT);
	45	return NULL;
	46	}
	47
	48	if (u != NULL && cb == NULL)
	49	cb = PEM_def_callback;
	50	if (cb == NULL)
	51	ui_method = UI_null();
	52	else
	53	ui_method = allocated_ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0);
	54	if (ui_method == NULL)
0f113f3e	55	return NULL;
1427d33c	56
6725682d	57	if ((ctx = OSSL_STORE_attach(bp, "file", libctx, propq, ui_method, u,
6ab6ecfd	58	NULL, NULL)) == NULL)
1427d33c RL	59	goto err;
1427d33c RL	60	#ifndef OPENSSL_NO_SECURE_HEAP
6e5ccd58	61	if (try_secure) {
1427d33c RL	62	int on = 1;
1427d33c RL	63	if (!OSSL_STORE_ctrl(ctx, OSSL_STORE_C_USE_SECMEM, &on))
0f113f3e	64	goto err;
1427d33c RL	65	}
	66	#endif
	67
6725682d SL	68	while (!OSSL_STORE_eof(ctx)
6725682d SL	69	&& (info = OSSL_STORE_load(ctx)) != NULL) {
6e5ccd58 RL	70	if (OSSL_STORE_INFO_get_type(info) == expected_store_info_type) {
	71	switch (expected_store_info_type) {
	72	case OSSL_STORE_INFO_PKEY:
	73	ret = OSSL_STORE_INFO_get1_PKEY(info);
	74	break;
	75	case OSSL_STORE_INFO_PUBKEY:
	76	ret = OSSL_STORE_INFO_get1_PUBKEY(info);
	77	break;
	78	case OSSL_STORE_INFO_PARAMS:
	79	ret = OSSL_STORE_INFO_get1_PARAMS(info);
	80	break;
	81	}
0f113f3e	82	}
1427d33c	83	OSSL_STORE_INFO_free(info);
6ab6ecfd	84	info = NULL;
0f113f3e	85	}
1427d33c RL	86
	87	if (ret != NULL && x != NULL)
	88	*x = ret;
	89
0f113f3e	90	err:
6ab6ecfd	91	OSSL_STORE_close(ctx);
6e5ccd58	92	UI_destroy_method(allocated_ui_method);
1427d33c	93	OSSL_STORE_INFO_free(info);
26a7d938	94	return ret;
0f113f3e	95	}
1241126a	96
6e5ccd58 RL	97	EVP_PKEY PEM_read_bio_PUBKEY_ex(BIO bp, EVP_PKEY **x,
	98	pem_password_cb cb, void u,
	99	OPENSSL_CTX libctx, const char propq)
	100	{
	101	return pem_read_bio_key(bp, x, cb, u, libctx, propq,
	102	OSSL_STORE_INFO_PUBKEY, 0);
	103	}
	104
	105	EVP_PKEY PEM_read_bio_PUBKEY(BIO bp, EVP_PKEY *x, pem_password_cb cb,
	106	void *u)
	107	{
	108	return PEM_read_bio_PUBKEY_ex(bp, x, cb, u, NULL, NULL);
	109	}
	110
	111	#ifndef OPENSSL_NO_STDIO
	112	EVP_PKEY PEM_read_PUBKEY_ex(FILE fp, EVP_PKEY **x,
	113	pem_password_cb cb, void u,
	114	OPENSSL_CTX libctx, const char propq)
	115	{
	116	BIO *b;
	117	EVP_PKEY *ret;
	118
	119	if ((b = BIO_new(BIO_s_file())) == NULL) {
	120	PEMerr(0, ERR_R_BUF_LIB);
	121	return 0;
	122	}
	123	BIO_set_fp(b, fp, BIO_NOCLOSE);
	124	ret = PEM_read_bio_PUBKEY_ex(b, x, cb, u, libctx, propq);
	125	BIO_free(b);
	126	return ret;
	127	}
	128
	129	EVP_PKEY PEM_read_PUBKEY(FILE fp, EVP_PKEY *x, pem_password_cb cb, void *u)
	130	{
	131	return PEM_read_PUBKEY_ex(fp, x, cb, u, NULL, NULL);
	132	}
	133	#endif
	134
	135	EVP_PKEY PEM_read_bio_PrivateKey_ex(BIO bp, EVP_PKEY **x,
	136	pem_password_cb cb, void u,
	137	OPENSSL_CTX libctx, const char propq)
	138	{
	139	return pem_read_bio_key(bp, x, cb, u, libctx, propq,
	140	OSSL_STORE_INFO_PKEY, 1);
	141	}
	142
1531241c MC	143	EVP_PKEY PEM_read_bio_PrivateKey(BIO bp, EVP_PKEY *x, pem_password_cb cb,
	144	void *u)
	145	{
	146	return PEM_read_bio_PrivateKey_ex(bp, x, cb, u, NULL, NULL);
	147	}
	148
f864a939	149	PEM_write_cb_fnsig(PrivateKey, EVP_PKEY, BIO, write_bio)
0f113f3e	150	{
f864a939 RL	151	IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, PrivateKey);
	152
	153	IMPLEMENT_PEM_provided_write_body_pass();
	154	IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);
	155
	156	legacy:
05dba815	157	if (x->ameth == NULL \|\| x->ameth->priv_encode != NULL)
f864a939	158	return PEM_write_bio_PKCS8PrivateKey(out, x, enc,
de0799b0	159	(const char *)kstr, klen, cb, u);
f864a939	160	return PEM_write_bio_PrivateKey_traditional(out, x, enc, kstr, klen, cb, u);
05dba815	161	}
e4263314	162
de0799b0	163	int PEM_write_bio_PrivateKey_traditional(BIO bp, const EVP_PKEY x,
05dba815	164	const EVP_CIPHER *enc,
de0799b0	165	const unsigned char *kstr, int klen,
05dba815 DSH	166	pem_password_cb cb, void u)
	167	{
	168	char pem_str[80];
0f113f3e MC	169	BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
	170	return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
	171	pem_str, bp, x, enc, kstr, klen, cb, u);
	172	}
e4263314	173
6e5ccd58 RL	174	EVP_PKEY PEM_read_bio_Parameters_ex(BIO bp, EVP_PKEY **x,
6e5ccd58 RL	175	OPENSSL_CTX libctx, const char propq)
0f113f3e	176	{
6e5ccd58 RL	177	return pem_read_bio_key(bp, x, NULL, NULL, libctx, propq,
	178	OSSL_STORE_INFO_PARAMS, 0);
	179	}
1427d33c	180
6e5ccd58 RL	181	EVP_PKEY PEM_read_bio_Parameters(BIO bp, EVP_PKEY **x)
	182	{
	183	return PEM_read_bio_Parameters_ex(bp, x, NULL, NULL);
0f113f3e	184	}
db98bbc1	185
f864a939	186	PEM_write_fnsig(Parameters, EVP_PKEY, BIO, write_bio)
0f113f3e MC	187	{
0f113f3e MC	188	char pem_str[80];
f864a939 RL	189	IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, Parameters);
	190
	191	IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);
	192
	193	legacy:
0f113f3e MC	194	if (!x->ameth \|\| !x->ameth->param_encode)
0f113f3e MC	195	return 0;
db98bbc1	196
0f113f3e MC	197	BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str);
0f113f3e MC	198	return PEM_ASN1_write_bio((i2d_of_void *)x->ameth->param_encode,
f864a939	199	pem_str, out, x, NULL, NULL, 0, 0, NULL);
0f113f3e	200	}
e4263314	201
4b618848	202	#ifndef OPENSSL_NO_STDIO
1531241c MC	203	EVP_PKEY PEM_read_PrivateKey_ex(FILE fp, EVP_PKEY *x, pem_password_cb cb,
	204	void u, OPENSSL_CTX libctx,
	205	const char *propq)
0f113f3e MC	206	{
	207	BIO *b;
	208	EVP_PKEY *ret;
1241126a	209
0f113f3e	210	if ((b = BIO_new(BIO_s_file())) == NULL) {
1531241c	211	PEMerr(0, ERR_R_BUF_LIB);
26a7d938	212	return 0;
0f113f3e MC	213	}
0f113f3e MC	214	BIO_set_fp(b, fp, BIO_NOCLOSE);
1531241c	215	ret = PEM_read_bio_PrivateKey_ex(b, x, cb, u, libctx, propq);
0f113f3e	216	BIO_free(b);
26a7d938	217	return ret;
0f113f3e	218	}
e4263314	219
1531241c MC	220	EVP_PKEY PEM_read_PrivateKey(FILE fp, EVP_PKEY *x, pem_password_cb cb,
	221	void *u)
	222	{
	223	return PEM_read_PrivateKey_ex(fp, x, cb, u, NULL, NULL);
	224	}
	225
de0799b0 RL	226	int PEM_write_PrivateKey(FILE fp, const EVP_PKEY x, const EVP_CIPHER *enc,
de0799b0 RL	227	const unsigned char *kstr, int klen,
0f113f3e MC	228	pem_password_cb cb, void u)
	229	{
	230	BIO *b;
	231	int ret;
e4263314	232
0f113f3e MC	233	if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) {
	234	PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB);
	235	return 0;
	236	}
	237	ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
	238	BIO_free(b);
	239	return ret;
	240	}
e4263314	241
1241126a	242	#endif
2ca873e8 DSH	243
	244	#ifndef OPENSSL_NO_DH
	245
	246	/* Transparently read in PKCS#3 or X9.42 DH parameters */
	247
	248	DH PEM_read_bio_DHparams(BIO bp, DH *x, pem_password_cb cb, void *u)
0f113f3e	249	{
0f113f3e	250	DH *ret = NULL;
1427d33c RL	251	EVP_PKEY *pkey = NULL;
	252	OSSL_STORE_CTX *ctx = NULL;
	253	OSSL_STORE_INFO *info = NULL;
	254	UI_METHOD *ui_method = NULL;
2ca873e8	255
1427d33c	256	if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
0f113f3e	257	return NULL;
2ca873e8	258
6725682d	259	if ((ctx = OSSL_STORE_attach(bp, "file", NULL, NULL, ui_method, u,
6ab6ecfd	260	NULL, NULL)) == NULL)
1427d33c RL	261	goto err;
	262
	263	while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
	264	if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PARAMS) {
	265	pkey = OSSL_STORE_INFO_get0_PARAMS(info);
	266	if (EVP_PKEY_id(pkey) == EVP_PKEY_DHX
	267	\|\| EVP_PKEY_id(pkey) == EVP_PKEY_DH) {
	268	ret = EVP_PKEY_get1_DH(pkey);
	269	break;
	270	}
	271	}
	272	OSSL_STORE_INFO_free(info);
6ab6ecfd	273	info = NULL;
1427d33c	274	}
2ca873e8	275
1427d33c RL	276	if (ret != NULL && x != NULL)
	277	*x = ret;
	278
	279	err:
6ab6ecfd	280	OSSL_STORE_close(ctx);
1427d33c RL	281	UI_destroy_method(ui_method);
1427d33c RL	282	OSSL_STORE_INFO_free(info);
0f113f3e MC	283	return ret;
0f113f3e MC	284	}
2ca873e8	285
0f113f3e	286	# ifndef OPENSSL_NO_STDIO
2ca873e8	287	DH PEM_read_DHparams(FILE fp, DH *x, pem_password_cb cb, void *u)
0f113f3e MC	288	{
	289	BIO *b;
	290	DH *ret;
2ca873e8	291
0f113f3e MC	292	if ((b = BIO_new(BIO_s_file())) == NULL) {
0f113f3e MC	293	PEMerr(PEM_F_PEM_READ_DHPARAMS, ERR_R_BUF_LIB);
26a7d938	294	return 0;
0f113f3e MC	295	}
	296	BIO_set_fp(b, fp, BIO_NOCLOSE);
	297	ret = PEM_read_bio_DHparams(b, x, cb, u);
	298	BIO_free(b);
26a7d938	299	return ret;
0f113f3e MC	300	}
0f113f3e MC	301	# endif
2ca873e8 DSH	302
2ca873e8 DSH	303	#endif