/src/openssl/crypto/pkcs12/p12_kiss.c

Source
/*
 * Copyright 1999-2026 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/pkcs12.h>
#include <openssl/core_names.h>
#include "crypto/pkcs7/pk7_local.h"
#include "p12_local.h"
#include "crypto/x509.h" /* for ossl_x509_add_cert_new() */

/* Simplified PKCS#12 routines */

static int parse_pk12(PKCS12 *p12, const char *pass, int passlen,
    PKCS12_PARSE_CTX *ctx,
    OSSL_LIB_CTX *libctx, const char *propq);

static int parse_bags(const STACK_OF(PKCS12_SAFEBAG) *bags, const char *pass,
    int passlen, PKCS12_PARSE_CTX *ctx,
    OSSL_LIB_CTX *libctx, const char *propq);

static int parse_bag(PKCS12_SAFEBAG *bag, const char *pass, int passlen,
    PKCS12_PARSE_CTX *ctx,
    OSSL_LIB_CTX *libctx, const char *propq);

PKCS12_PARSE_CTX *PKCS12_PARSE_CTX_new(void)
{
    return OPENSSL_zalloc(sizeof(PKCS12_PARSE_CTX));
}

void PKCS12_PARSE_CTX_free(PKCS12_PARSE_CTX *ctx)
{
    OPENSSL_free(ctx);
}

void PKCS12_PARSE_CTX_set_pkey(PKCS12_PARSE_CTX *ctx, EVP_PKEY **pkey)
{
    ctx->pkey = pkey;
}

void PKCS12_PARSE_CTX_set_cert(PKCS12_PARSE_CTX *ctx, X509 **cert)
{
    ctx->cert = cert;
}

void PKCS12_PARSE_CTX_set_ca(PKCS12_PARSE_CTX *ctx, STACK_OF(X509) **ca)
{
    ctx->ca = ca;
}

void PKCS12_PARSE_CTX_set_skeys(PKCS12_PARSE_CTX *ctx, STACK_OF(EVP_SKEY) **skeys)
{
    ctx->skeys = skeys;
}

/*
 * Parse and decrypt a PKCS#12 structure returning user key, user cert,
 * other (CA) certs, and/or symmetric secret keys according to ctx settings.
 */

int PKCS12_parse_ex(PKCS12 *p12, const char *pass,
    PKCS12_PARSE_CTX *ctx,
    OSSL_LIB_CTX *libctx, const char *propq)
{
    X509 *x = NULL;
    STACK_OF(X509) *initial_ca = NULL;
    STACK_OF(EVP_SKEY) *initial_skeys = NULL;
    int initial_ca_count = 0;
    int initial_skeys_count = 0;
    int ca_added_count = 0;
    int skeys_added_count = 0;

    if (p12 == NULL) {
        ERR_raise(ERR_LIB_PKCS12, PKCS12_R_INVALID_NULL_PKCS12_POINTER);
        return 0;
    }

    if (ctx == NULL) {
        ERR_raise(ERR_LIB_PKCS12, ERR_R_PASSED_NULL_PARAMETER);
        return 0;
    }

    initial_ca = ctx->ca != NULL ? *ctx->ca : NULL;
    initial_ca_count = initial_ca == NULL ? 0 : sk_X509_num(initial_ca);
    initial_skeys = ctx->skeys != NULL ? *ctx->skeys : NULL;
    initial_skeys_count = initial_skeys == NULL ? 0 : sk_EVP_SKEY_num(initial_skeys);

    if (ctx->pkey != NULL)
        *ctx->pkey = NULL;
    if (ctx->cert != NULL)
        *ctx->cert = NULL;
    ctx->ocerts = NULL;

    /* Check the mac */
    if (PKCS12_mac_present(p12)) {
        /*
         * If password is zero length or NULL then try verifying both cases to
         * determine which password is correct. The reason for this is that under
         * PKCS#12 password based encryption no password and a zero length
         * password are two different things...
         */
        if (pass == NULL || *pass == '\0') {
            if (ossl_pkcs12_verify_mac(p12, NULL, 0, libctx, propq))
                pass = NULL;
            else if (ossl_pkcs12_verify_mac(p12, "", 0, libctx, propq))
                pass = "";
            else {
                ERR_raise(ERR_LIB_PKCS12, PKCS12_R_MAC_VERIFY_FAILURE);
                goto err;
            }
        } else if (!ossl_pkcs12_verify_mac(p12, pass, -1, libctx, propq)) {
            ERR_raise(ERR_LIB_PKCS12, PKCS12_R_MAC_VERIFY_FAILURE);
            goto err;
        }
    } else if (pass == NULL || *pass == '\0') {
        pass = NULL;
    }

    /* If needed, allocate stack for other certificates */
    if ((ctx->cert != NULL || ctx->ca != NULL)
        && (ctx->ocerts = sk_X509_new_null()) == NULL) {
        ERR_raise(ERR_LIB_PKCS12, ERR_R_CRYPTO_LIB);
        goto err;
    }

    if (!parse_pk12(p12, pass, -1, ctx, libctx, propq)) {
        int err = ERR_peek_last_error();

        if (ERR_GET_LIB(err) != ERR_LIB_EVP
            && ERR_GET_REASON(err) != EVP_R_UNSUPPORTED_ALGORITHM)
            ERR_raise(ERR_LIB_PKCS12, PKCS12_R_PARSE_ERROR);
        goto err;
    }

    /* Split the certs in ocerts over *cert and *ca as far as requested */
    while ((x = sk_X509_shift(ctx->ocerts)) != NULL) {
        if (ctx->pkey != NULL && *ctx->pkey != NULL
            && ctx->cert != NULL && *ctx->cert == NULL) {
            int match;

            ERR_set_mark();
            match = X509_check_private_key(x, *ctx->pkey);
            ERR_pop_to_mark();
            if (match) {
                *ctx->cert = x;
                continue;
            }
        }

        if (ctx->ca != NULL) {
            if (!ossl_x509_add_cert_new(ctx->ca, x, X509_ADD_FLAG_DEFAULT))
                goto err;
            continue;
        }
        X509_free(x);
    }
    sk_X509_free(ctx->ocerts);
    ctx->ocerts = NULL;

    return 1;

err:
    if (ctx->pkey != NULL) {
        EVP_PKEY_free(*ctx->pkey);
        *ctx->pkey = NULL;
    }
    if (ctx->cert != NULL) {
        X509_free(*ctx->cert);
        *ctx->cert = NULL;
    }
    skeys_added_count = ctx->skeys == NULL || *ctx->skeys == NULL ? 0 : sk_EVP_SKEY_num(*ctx->skeys) - initial_skeys_count;
    while (skeys_added_count > 0) {
        EVP_SKEY *t_skey = sk_EVP_SKEY_pop(*ctx->skeys);
        EVP_SKEY_free(t_skey);
        skeys_added_count--;
    }

    if (initial_skeys == NULL && ctx->skeys != NULL) {
        sk_EVP_SKEY_free(*ctx->skeys);
        *ctx->skeys = NULL;
    }

    ca_added_count = ctx->ca == NULL || *ctx->ca == NULL ? 0 : sk_X509_num(*ctx->ca) - initial_ca_count;
    while (ca_added_count > 0) {
        X509 *t_cert = sk_X509_pop(*ctx->ca);
        X509_free(t_cert);
        ca_added_count--;
    }

    if (initial_ca == NULL && ctx->ca != NULL) {
        sk_X509_free(*ctx->ca);
        *ctx->ca = NULL;
    }

    X509_free(x);
    OSSL_STACK_OF_X509_free(ctx->ocerts);
    ctx->ocerts = NULL;
    return 0;
}

int PKCS12_parse(PKCS12 *p12, const char *pass, EVP_PKEY **pkey, X509 **cert,
    STACK_OF(X509) **ca)
{
    PKCS12_PARSE_CTX *ctx;
    int ret;

    if (pkey != NULL)
        *pkey = NULL;
    if (cert != NULL)
        *cert = NULL;

    if (p12 == NULL) {
        ERR_raise(ERR_LIB_PKCS12, PKCS12_R_INVALID_NULL_PKCS12_POINTER);
        return 0;
    }

    ctx = PKCS12_PARSE_CTX_new();
    if (ctx == NULL)
        return 0;

    PKCS12_PARSE_CTX_set_pkey(ctx, pkey);
    PKCS12_PARSE_CTX_set_cert(ctx, cert);
    PKCS12_PARSE_CTX_set_ca(ctx, ca);

    ret = PKCS12_parse_ex(p12, pass, ctx, p12->authsafes->ctx.libctx, p12->authsafes->ctx.propq);
    PKCS12_PARSE_CTX_free(ctx);
    return ret;
}

/* Parse the outer PKCS#12 structure */

static int parse_pk12(PKCS12 *p12, const char *pass, int passlen,
    PKCS12_PARSE_CTX *ctx,
    OSSL_LIB_CTX *libctx, const char *propq)
{
    STACK_OF(PKCS7) *asafes;
    STACK_OF(PKCS12_SAFEBAG) *bags;
    int i, bagnid;
    PKCS7 *p7;

    if ((asafes = ossl_pkcs12_unpack_authsafes_ex(p12, libctx, propq)) == NULL)
        return 0;
    for (i = 0; i < sk_PKCS7_num(asafes); i++) {
        p7 = sk_PKCS7_value(asafes, i);
        bagnid = OBJ_obj2nid(p7->type);
        if (bagnid == NID_pkcs7_data) {
            bags = PKCS12_unpack_p7data(p7);
        } else if (bagnid == NID_pkcs7_encrypted) {
            bags = ossl_pkcs12_unpack_p7encdata_ex(p7, pass, passlen,
                libctx, propq);
        } else
            continue;
        if (!bags) {
            sk_PKCS7_pop_free(asafes, PKCS7_free);
            return 0;
        }
        if (!parse_bags(bags, pass, passlen, ctx, libctx, propq)) {
            sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
            sk_PKCS7_pop_free(asafes, PKCS7_free);
            return 0;
        }
        sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
    }
    sk_PKCS7_pop_free(asafes, PKCS7_free);
    return 1;
}

static int parse_bags(const STACK_OF(PKCS12_SAFEBAG) *bags, const char *pass,
    int passlen, PKCS12_PARSE_CTX *ctx,
    OSSL_LIB_CTX *libctx, const char *propq)
{
    int i;
    for (i = 0; i < sk_PKCS12_SAFEBAG_num(bags); i++) {
        if (!parse_bag(sk_PKCS12_SAFEBAG_value(bags, i),
                pass, passlen, ctx,
                libctx, propq))
            return 0;
    }
    return 1;
}

static int parse_bag(PKCS12_SAFEBAG *bag, const char *pass, int passlen,
    PKCS12_PARSE_CTX *ctx,
    OSSL_LIB_CTX *libctx, const char *propq)
{
    PKCS8_PRIV_KEY_INFO *p8;
    X509 *x509;
    const ASN1_TYPE *attrib;
    ASN1_BMPSTRING *fname = NULL;
    ASN1_OCTET_STRING *lkid = NULL;

    if ((attrib = PKCS12_SAFEBAG_get0_attr(bag, NID_friendlyName))) {
        if (attrib->type != V_ASN1_BMPSTRING)
            return 0;
        fname = attrib->value.bmpstring;
    }

    if ((attrib = PKCS12_SAFEBAG_get0_attr(bag, NID_localKeyID))) {
        if (attrib->type != V_ASN1_OCTET_STRING)
            return 0;
        lkid = attrib->value.octet_string;
    }

    switch (PKCS12_SAFEBAG_get_nid(bag)) {
    case NID_keyBag:
        if (ctx->pkey == NULL || *ctx->pkey != NULL)
            return 1;
        *ctx->pkey = EVP_PKCS82PKEY_ex(PKCS12_SAFEBAG_get0_p8inf(bag),
            libctx, propq);
        if (*ctx->pkey == NULL)
            return 0;
        break;

    case NID_pkcs8ShroudedKeyBag:
        if (ctx->pkey == NULL || *ctx->pkey != NULL)
            return 1;
        if ((p8 = PKCS12_decrypt_skey_ex(bag, pass, passlen,
                 libctx, propq))
            == NULL)
            return 0;
        *ctx->pkey = EVP_PKCS82PKEY_ex(p8, libctx, propq);
        PKCS8_PRIV_KEY_INFO_free(p8);
        if (!(*ctx->pkey))
            return 0;
        break;

    case NID_certBag:
        if (ctx->ocerts == NULL
            || PKCS12_SAFEBAG_get_bag_nid(bag) != NID_x509Certificate)
            return 1;
        if ((x509 = PKCS12_SAFEBAG_get1_cert_ex(bag, libctx, propq)) == NULL)
            return 0;
        if (lkid && !X509_keyid_set1(x509, lkid->data, lkid->length)) {
            X509_free(x509);
            return 0;
        }
        if (fname) {
            int len, r;
            unsigned char *data;

            len = ASN1_STRING_to_UTF8(&data, fname);
            if (len >= 0) {
                r = X509_alias_set1(x509, data, len);
                OPENSSL_free(data);
                if (!r) {
                    X509_free(x509);
                    return 0;
                }
            }
        }

        if (!sk_X509_push(ctx->ocerts, x509)) {
            X509_free(x509);
            return 0;
        }

        break;

    case NID_secretBag:
        if (ctx->skeys == NULL)
            return 1;
        if (PKCS12_SAFEBAG_get_bag_nid(bag) != NID_pkcs8ShroudedKeyBag)
            return 1;
        {
            EVP_SKEY *skey;
            OSSL_PARAM extra[3];
            int nparams = 0;
            unsigned char *fname_utf8 = NULL;
            int fname_utf8_len = 0;
            PKCS8_PRIV_KEY_INFO *p8sb = PKCS12_decrypt_secretbag(bag, pass,
                passlen, libctx, propq);

            if (p8sb == NULL)
                return 0;

            if (fname) {
                fname_utf8_len = ASN1_STRING_to_UTF8(&fname_utf8, fname);
                if (fname_utf8_len >= 0)
                    extra[nparams++] = OSSL_PARAM_construct_utf8_string(
                        OSSL_SKEY_PARAM_ALIAS,
                        (char *)fname_utf8, (size_t)fname_utf8_len);
            }
            if (lkid)
                extra[nparams++] = OSSL_PARAM_construct_octet_string(
                    OSSL_SKEY_PARAM_LOCAL_KEYID,
                    lkid->data, (size_t)lkid->length);
            extra[nparams] = OSSL_PARAM_construct_end();

            skey = PKCS8_PRIV_KEY_INFO_get1_skey(p8sb, libctx, propq,
                extra, 1);
            PKCS8_PRIV_KEY_INFO_free(p8sb);
            OPENSSL_free(fname_utf8);
            if (skey == NULL) {
                ERR_raise(ERR_LIB_PKCS12, PKCS12_R_PARSE_ERROR);
                return 0;
            }
            if (*ctx->skeys == NULL
                && (*ctx->skeys = sk_EVP_SKEY_new_null()) == NULL) {
                EVP_SKEY_free(skey);
                return 0;
            }
            if (!sk_EVP_SKEY_push(*ctx->skeys, skey)) {
                EVP_SKEY_free(skey);
                return 0;
            }
        }
        return 1;

    case NID_safeContentsBag:
        return parse_bags(PKCS12_SAFEBAG_get0_safes(bag), pass, passlen, ctx,
            libctx, propq);

    default:
        return 1;
    }
    return 1;
}

Coverage Report

Created: 2026-10-16 07:31

Line	Count	Source
1		/*
2		* Copyright 1999-2026 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
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
8		*/
9
10		#include <stdio.h>
11		#include "internal/cryptlib.h"
12		#include <openssl/pkcs12.h>
13		#include <openssl/core_names.h>
14		#include "crypto/pkcs7/pk7_local.h"
15		#include "p12_local.h"
16		#include "crypto/x509.h" /* for ossl_x509_add_cert_new() */
17
18		/* Simplified PKCS#12 routines */
19
20		static int parse_pk12(PKCS12 p12, const char pass, int passlen,
21		PKCS12_PARSE_CTX *ctx,
22		OSSL_LIB_CTX libctx, const char propq);
23
24		static int parse_bags(const STACK_OF(PKCS12_SAFEBAG) bags, const char pass,
25		int passlen, PKCS12_PARSE_CTX *ctx,
26		OSSL_LIB_CTX libctx, const char propq);
27
28		static int parse_bag(PKCS12_SAFEBAG bag, const char pass, int passlen,
29		PKCS12_PARSE_CTX *ctx,
30		OSSL_LIB_CTX libctx, const char propq);
31
32		PKCS12_PARSE_CTX *PKCS12_PARSE_CTX_new(void)
33	0	{
34	0	return OPENSSL_zalloc(sizeof(PKCS12_PARSE_CTX));
35	0	}
36
37		void PKCS12_PARSE_CTX_free(PKCS12_PARSE_CTX *ctx)
38	0	{
39	0	OPENSSL_free(ctx);
40	0	}
41
42		void PKCS12_PARSE_CTX_set_pkey(PKCS12_PARSE_CTX ctx, EVP_PKEY *pkey)
43	0	{
44	0	ctx->pkey = pkey;
45	0	}
46
47		void PKCS12_PARSE_CTX_set_cert(PKCS12_PARSE_CTX ctx, X509 *cert)
48	0	{
49	0	ctx->cert = cert;
50	0	}
51
52		void PKCS12_PARSE_CTX_set_ca(PKCS12_PARSE_CTX ctx, STACK_OF(X509) *ca)
53	0	{
54	0	ctx->ca = ca;
55	0	}
56
57		void PKCS12_PARSE_CTX_set_skeys(PKCS12_PARSE_CTX ctx, STACK_OF(EVP_SKEY) *skeys)
58	0	{
59	0	ctx->skeys = skeys;
60	0	}
61
62		/*
63		* Parse and decrypt a PKCS#12 structure returning user key, user cert,
64		* other (CA) certs, and/or symmetric secret keys according to ctx settings.
65		*/
66
67		int PKCS12_parse_ex(PKCS12 p12, const char pass,
68		PKCS12_PARSE_CTX *ctx,
69		OSSL_LIB_CTX libctx, const char propq)
70	0	{
71	0	X509 *x = NULL;
72	0	STACK_OF(X509) *initial_ca = NULL;
73	0	STACK_OF(EVP_SKEY) *initial_skeys = NULL;
74	0	int initial_ca_count = 0;
75	0	int initial_skeys_count = 0;
76	0	int ca_added_count = 0;
77	0	int skeys_added_count = 0;
78
79	0	if (p12 == NULL) {
80	0	ERR_raise(ERR_LIB_PKCS12, PKCS12_R_INVALID_NULL_PKCS12_POINTER);
81	0	return 0;
82	0	}
83
84	0	if (ctx == NULL) {
85	0	ERR_raise(ERR_LIB_PKCS12, ERR_R_PASSED_NULL_PARAMETER);
86	0	return 0;
87	0	}
88
89	0	initial_ca = ctx->ca != NULL ? *ctx->ca : NULL;
90	0	initial_ca_count = initial_ca == NULL ? 0 : sk_X509_num(initial_ca);
91	0	initial_skeys = ctx->skeys != NULL ? *ctx->skeys : NULL;
92	0	initial_skeys_count = initial_skeys == NULL ? 0 : sk_EVP_SKEY_num(initial_skeys);
93
94	0	if (ctx->pkey != NULL)
95	0	*ctx->pkey = NULL;
96	0	if (ctx->cert != NULL)
97	0	*ctx->cert = NULL;
98	0	ctx->ocerts = NULL;
99
100		/* Check the mac */
101	0	if (PKCS12_mac_present(p12)) {
102		/*
103		* If password is zero length or NULL then try verifying both cases to
104		* determine which password is correct. The reason for this is that under
105		* PKCS#12 password based encryption no password and a zero length
106		* password are two different things...
107		*/
108	0	if (pass == NULL \|\| *pass == '\0') {
109	0	if (ossl_pkcs12_verify_mac(p12, NULL, 0, libctx, propq))
110	0	pass = NULL;
111	0	else if (ossl_pkcs12_verify_mac(p12, "", 0, libctx, propq))
112	0	pass = "";
113	0	else {
114	0	ERR_raise(ERR_LIB_PKCS12, PKCS12_R_MAC_VERIFY_FAILURE);
115	0	goto err;
116	0	}
117	0	} else if (!ossl_pkcs12_verify_mac(p12, pass, -1, libctx, propq)) {
118	0	ERR_raise(ERR_LIB_PKCS12, PKCS12_R_MAC_VERIFY_FAILURE);
119	0	goto err;
120	0	}
121	0	} else if (pass == NULL \|\| *pass == '\0') {
122	0	pass = NULL;
123	0	}
124
125		/* If needed, allocate stack for other certificates */
126	0	if ((ctx->cert != NULL \|\| ctx->ca != NULL)
127	0	&& (ctx->ocerts = sk_X509_new_null()) == NULL) {
128	0	ERR_raise(ERR_LIB_PKCS12, ERR_R_CRYPTO_LIB);
129	0	goto err;
130	0	}
131
132	0	if (!parse_pk12(p12, pass, -1, ctx, libctx, propq)) {
133	0	int err = ERR_peek_last_error();
134
135	0	if (ERR_GET_LIB(err) != ERR_LIB_EVP
136	0	&& ERR_GET_REASON(err) != EVP_R_UNSUPPORTED_ALGORITHM)
137	0	ERR_raise(ERR_LIB_PKCS12, PKCS12_R_PARSE_ERROR);
138	0	goto err;
139	0	}
140
141		/* Split the certs in ocerts over cert and ca as far as requested */
142	0	while ((x = sk_X509_shift(ctx->ocerts)) != NULL) {
143	0	if (ctx->pkey != NULL && *ctx->pkey != NULL
144	0	&& ctx->cert != NULL && *ctx->cert == NULL) {
145	0	int match;
146
147	0	ERR_set_mark();
148	0	match = X509_check_private_key(x, *ctx->pkey);
149	0	ERR_pop_to_mark();
150	0	if (match) {
151	0	*ctx->cert = x;
152	0	continue;
153	0	}
154	0	}
155
156	0	if (ctx->ca != NULL) {
157	0	if (!ossl_x509_add_cert_new(ctx->ca, x, X509_ADD_FLAG_DEFAULT))
158	0	goto err;
159	0	continue;
160	0	}
161	0	X509_free(x);
162	0	}
163	0	sk_X509_free(ctx->ocerts);
164	0	ctx->ocerts = NULL;
165
166	0	return 1;
167
168	0	err:
169	0	if (ctx->pkey != NULL) {
170	0	EVP_PKEY_free(*ctx->pkey);
171	0	*ctx->pkey = NULL;
172	0	}
173	0	if (ctx->cert != NULL) {
174	0	X509_free(*ctx->cert);
175	0	*ctx->cert = NULL;
176	0	}
177	0	skeys_added_count = ctx->skeys == NULL \|\| ctx->skeys == NULL ? 0 : sk_EVP_SKEY_num(ctx->skeys) - initial_skeys_count;
178	0	while (skeys_added_count > 0) {
179	0	EVP_SKEY t_skey = sk_EVP_SKEY_pop(ctx->skeys);
180	0	EVP_SKEY_free(t_skey);
181	0	skeys_added_count--;
182	0	}
183
184	0	if (initial_skeys == NULL && ctx->skeys != NULL) {
185	0	sk_EVP_SKEY_free(*ctx->skeys);
186	0	*ctx->skeys = NULL;
187	0	}
188
189	0	ca_added_count = ctx->ca == NULL \|\| ctx->ca == NULL ? 0 : sk_X509_num(ctx->ca) - initial_ca_count;
190	0	while (ca_added_count > 0) {
191	0	X509 t_cert = sk_X509_pop(ctx->ca);
192	0	X509_free(t_cert);
193	0	ca_added_count--;
194	0	}
195
196	0	if (initial_ca == NULL && ctx->ca != NULL) {
197	0	sk_X509_free(*ctx->ca);
198	0	*ctx->ca = NULL;
199	0	}
200
201	0	X509_free(x);
202	0	OSSL_STACK_OF_X509_free(ctx->ocerts);
203	0	ctx->ocerts = NULL;
204	0	return 0;
205	0	}
206
207		int PKCS12_parse(PKCS12 p12, const char pass, EVP_PKEY pkey, X509 cert,
208		STACK_OF(X509) **ca)
209	0	{
210	0	PKCS12_PARSE_CTX *ctx;
211	0	int ret;
212
213	0	if (pkey != NULL)
214	0	*pkey = NULL;
215	0	if (cert != NULL)
216	0	*cert = NULL;
217
218	0	if (p12 == NULL) {
219	0	ERR_raise(ERR_LIB_PKCS12, PKCS12_R_INVALID_NULL_PKCS12_POINTER);
220	0	return 0;
221	0	}
222
223	0	ctx = PKCS12_PARSE_CTX_new();
224	0	if (ctx == NULL)
225	0	return 0;
226
227	0	PKCS12_PARSE_CTX_set_pkey(ctx, pkey);
228	0	PKCS12_PARSE_CTX_set_cert(ctx, cert);
229	0	PKCS12_PARSE_CTX_set_ca(ctx, ca);
230
231	0	ret = PKCS12_parse_ex(p12, pass, ctx, p12->authsafes->ctx.libctx, p12->authsafes->ctx.propq);
232	0	PKCS12_PARSE_CTX_free(ctx);
233	0	return ret;
234	0	}
235
236		/* Parse the outer PKCS#12 structure */
237
238		static int parse_pk12(PKCS12 p12, const char pass, int passlen,
239		PKCS12_PARSE_CTX *ctx,
240		OSSL_LIB_CTX libctx, const char propq)
241	0	{
242	0	STACK_OF(PKCS7) *asafes;
243	0	STACK_OF(PKCS12_SAFEBAG) *bags;
244	0	int i, bagnid;
245	0	PKCS7 *p7;
246
247	0	if ((asafes = ossl_pkcs12_unpack_authsafes_ex(p12, libctx, propq)) == NULL)
248	0	return 0;
249	0	for (i = 0; i < sk_PKCS7_num(asafes); i++) {
250	0	p7 = sk_PKCS7_value(asafes, i);
251	0	bagnid = OBJ_obj2nid(p7->type);
252	0	if (bagnid == NID_pkcs7_data) {
253	0	bags = PKCS12_unpack_p7data(p7);
254	0	} else if (bagnid == NID_pkcs7_encrypted) {
255	0	bags = ossl_pkcs12_unpack_p7encdata_ex(p7, pass, passlen,
256	0	libctx, propq);
257	0	} else
258	0	continue;
259	0	if (!bags) {
260	0	sk_PKCS7_pop_free(asafes, PKCS7_free);
261	0	return 0;
262	0	}
263	0	if (!parse_bags(bags, pass, passlen, ctx, libctx, propq)) {
264	0	sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
265	0	sk_PKCS7_pop_free(asafes, PKCS7_free);
266	0	return 0;
267	0	}
268	0	sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
269	0	}
270	0	sk_PKCS7_pop_free(asafes, PKCS7_free);
271	0	return 1;
272	0	}
273
274		static int parse_bags(const STACK_OF(PKCS12_SAFEBAG) bags, const char pass,
275		int passlen, PKCS12_PARSE_CTX *ctx,
276		OSSL_LIB_CTX libctx, const char propq)
277	0	{
278	0	int i;
279	0	for (i = 0; i < sk_PKCS12_SAFEBAG_num(bags); i++) {
280	0	if (!parse_bag(sk_PKCS12_SAFEBAG_value(bags, i),
281	0	pass, passlen, ctx,
282	0	libctx, propq))
283	0	return 0;
284	0	}
285	0	return 1;
286	0	}
287
288		static int parse_bag(PKCS12_SAFEBAG bag, const char pass, int passlen,
289		PKCS12_PARSE_CTX *ctx,
290		OSSL_LIB_CTX libctx, const char propq)
291	0	{
292	0	PKCS8_PRIV_KEY_INFO *p8;
293	0	X509 *x509;
294	0	const ASN1_TYPE *attrib;
295	0	ASN1_BMPSTRING *fname = NULL;
296	0	ASN1_OCTET_STRING *lkid = NULL;
297
298	0	if ((attrib = PKCS12_SAFEBAG_get0_attr(bag, NID_friendlyName))) {
299	0	if (attrib->type != V_ASN1_BMPSTRING)
300	0	return 0;
301	0	fname = attrib->value.bmpstring;
302	0	}
303
304	0	if ((attrib = PKCS12_SAFEBAG_get0_attr(bag, NID_localKeyID))) {
305	0	if (attrib->type != V_ASN1_OCTET_STRING)
306	0	return 0;
307	0	lkid = attrib->value.octet_string;
308	0	}
309
310	0	switch (PKCS12_SAFEBAG_get_nid(bag)) {
311	0	case NID_keyBag:
312	0	if (ctx->pkey == NULL \|\| *ctx->pkey != NULL)
313	0	return 1;
314	0	*ctx->pkey = EVP_PKCS82PKEY_ex(PKCS12_SAFEBAG_get0_p8inf(bag),
315	0	libctx, propq);
316	0	if (*ctx->pkey == NULL)
317	0	return 0;
318	0	break;
319
320	0	case NID_pkcs8ShroudedKeyBag:
321	0	if (ctx->pkey == NULL \|\| *ctx->pkey != NULL)
322	0	return 1;
323	0	if ((p8 = PKCS12_decrypt_skey_ex(bag, pass, passlen,
324	0	libctx, propq))
325	0	== NULL)
326	0	return 0;
327	0	*ctx->pkey = EVP_PKCS82PKEY_ex(p8, libctx, propq);
328	0	PKCS8_PRIV_KEY_INFO_free(p8);
329	0	if (!(*ctx->pkey))
330	0	return 0;
331	0	break;
332
333	0	case NID_certBag:
334	0	if (ctx->ocerts == NULL
335	0	\|\| PKCS12_SAFEBAG_get_bag_nid(bag) != NID_x509Certificate)
336	0	return 1;
337	0	if ((x509 = PKCS12_SAFEBAG_get1_cert_ex(bag, libctx, propq)) == NULL)
338	0	return 0;
339	0	if (lkid && !X509_keyid_set1(x509, lkid->data, lkid->length)) {
340	0	X509_free(x509);
341	0	return 0;
342	0	}
343	0	if (fname) {
344	0	int len, r;
345	0	unsigned char *data;
346
347	0	len = ASN1_STRING_to_UTF8(&data, fname);
348	0	if (len >= 0) {
349	0	r = X509_alias_set1(x509, data, len);
350	0	OPENSSL_free(data);
351	0	if (!r) {
352	0	X509_free(x509);
353	0	return 0;
354	0	}
355	0	}
356	0	}
357
358	0	if (!sk_X509_push(ctx->ocerts, x509)) {
359	0	X509_free(x509);
360	0	return 0;
361	0	}
362
363	0	break;
364
365	0	case NID_secretBag:
366	0	if (ctx->skeys == NULL)
367	0	return 1;
368	0	if (PKCS12_SAFEBAG_get_bag_nid(bag) != NID_pkcs8ShroudedKeyBag)
369	0	return 1;
370	0	{
371	0	EVP_SKEY *skey;
372	0	OSSL_PARAM extra[3];
373	0	int nparams = 0;
374	0	unsigned char *fname_utf8 = NULL;
375	0	int fname_utf8_len = 0;
376	0	PKCS8_PRIV_KEY_INFO *p8sb = PKCS12_decrypt_secretbag(bag, pass,
377	0	passlen, libctx, propq);
378
379	0	if (p8sb == NULL)
380	0	return 0;
381
382	0	if (fname) {
383	0	fname_utf8_len = ASN1_STRING_to_UTF8(&fname_utf8, fname);
384	0	if (fname_utf8_len >= 0)
385	0	extra[nparams++] = OSSL_PARAM_construct_utf8_string(
386	0	OSSL_SKEY_PARAM_ALIAS,
387	0	(char *)fname_utf8, (size_t)fname_utf8_len);
388	0	}
389	0	if (lkid)
390	0	extra[nparams++] = OSSL_PARAM_construct_octet_string(
391	0	OSSL_SKEY_PARAM_LOCAL_KEYID,
392	0	lkid->data, (size_t)lkid->length);
393	0	extra[nparams] = OSSL_PARAM_construct_end();
394
395	0	skey = PKCS8_PRIV_KEY_INFO_get1_skey(p8sb, libctx, propq,
396	0	extra, 1);
397	0	PKCS8_PRIV_KEY_INFO_free(p8sb);
398	0	OPENSSL_free(fname_utf8);
399	0	if (skey == NULL) {
400	0	ERR_raise(ERR_LIB_PKCS12, PKCS12_R_PARSE_ERROR);
401	0	return 0;
402	0	}
403	0	if (*ctx->skeys == NULL
404	0	&& (*ctx->skeys = sk_EVP_SKEY_new_null()) == NULL) {
405	0	EVP_SKEY_free(skey);
406	0	return 0;
407	0	}
408	0	if (!sk_EVP_SKEY_push(*ctx->skeys, skey)) {
409	0	EVP_SKEY_free(skey);
410	0	return 0;
411	0	}
412	0	}
413	0	return 1;
414
415	0	case NID_safeContentsBag:
416	0	return parse_bags(PKCS12_SAFEBAG_get0_safes(bag), pass, passlen, ctx,
417	0	libctx, propq);
418
419	0	default:
420	0	return 1;
421	0	}
422	0	return 1;
423	0	}