xref: /third_party/openssl/crypto/x509/v3_info.c (revision e1051a39) 
1/*
2 * Copyright 1999-2021 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/conf.h>
13#include <openssl/asn1.h>
14#include <openssl/asn1t.h>
15#include <openssl/x509v3.h>
16#include "ext_dat.h"
17
18static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD
19                                                       *method, AUTHORITY_INFO_ACCESS
20                                                       *ainfo, STACK_OF(CONF_VALUE)
21                                                       *ret);
22static AUTHORITY_INFO_ACCESS *v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD
23                                                        *method,
24                                                        X509V3_CTX *ctx,
25                                                        STACK_OF(CONF_VALUE)
26                                                        *nval);
27
28const X509V3_EXT_METHOD ossl_v3_info = { NID_info_access, X509V3_EXT_MULTILINE,
29    ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
30    0, 0, 0, 0,
31    0, 0,
32    (X509V3_EXT_I2V) i2v_AUTHORITY_INFO_ACCESS,
33    (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,
34    0, 0,
35    NULL
36};
37
38const X509V3_EXT_METHOD ossl_v3_sinfo = { NID_sinfo_access, X509V3_EXT_MULTILINE,
39    ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
40    0, 0, 0, 0,
41    0, 0,
42    (X509V3_EXT_I2V) i2v_AUTHORITY_INFO_ACCESS,
43    (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,
44    0, 0,
45    NULL
46};
47
48ASN1_SEQUENCE(ACCESS_DESCRIPTION) = {
49        ASN1_SIMPLE(ACCESS_DESCRIPTION, method, ASN1_OBJECT),
50        ASN1_SIMPLE(ACCESS_DESCRIPTION, location, GENERAL_NAME)
51} ASN1_SEQUENCE_END(ACCESS_DESCRIPTION)
52
53IMPLEMENT_ASN1_FUNCTIONS(ACCESS_DESCRIPTION)
54
55ASN1_ITEM_TEMPLATE(AUTHORITY_INFO_ACCESS) =
56        ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, GeneralNames, ACCESS_DESCRIPTION)
57ASN1_ITEM_TEMPLATE_END(AUTHORITY_INFO_ACCESS)
58
59IMPLEMENT_ASN1_FUNCTIONS(AUTHORITY_INFO_ACCESS)
60
61static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(
62    X509V3_EXT_METHOD *method, AUTHORITY_INFO_ACCESS *ainfo,
63    STACK_OF(CONF_VALUE) *ret)
64{
65    ACCESS_DESCRIPTION *desc;
66    int i, nlen;
67    char objtmp[80], *ntmp;
68    CONF_VALUE *vtmp;
69    STACK_OF(CONF_VALUE) *tret = ret;
70
71    for (i = 0; i < sk_ACCESS_DESCRIPTION_num(ainfo); i++) {
72        STACK_OF(CONF_VALUE) *tmp;
73
74        desc = sk_ACCESS_DESCRIPTION_value(ainfo, i);
75        tmp = i2v_GENERAL_NAME(method, desc->location, tret);
76        if (tmp == NULL)
77            goto err;
78        tret = tmp;
79        vtmp = sk_CONF_VALUE_value(tret, i);
80        i2t_ASN1_OBJECT(objtmp, sizeof(objtmp), desc->method);
81        nlen = strlen(objtmp) + 3 + strlen(vtmp->name) + 1;
82        ntmp = OPENSSL_malloc(nlen);
83        if (ntmp == NULL)
84            goto err;
85        BIO_snprintf(ntmp, nlen, "%s - %s", objtmp, vtmp->name);
86        OPENSSL_free(vtmp->name);
87        vtmp->name = ntmp;
88    }
89    if (ret == NULL && tret == NULL)
90        return sk_CONF_VALUE_new_null();
91
92    return tret;
93 err:
94    ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
95    if (ret == NULL && tret != NULL)
96        sk_CONF_VALUE_pop_free(tret, X509V3_conf_free);
97    return NULL;
98}
99
100static AUTHORITY_INFO_ACCESS *v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD
101                                                        *method,
102                                                        X509V3_CTX *ctx,
103                                                        STACK_OF(CONF_VALUE)
104                                                        *nval)
105{
106    AUTHORITY_INFO_ACCESS *ainfo = NULL;
107    CONF_VALUE *cnf, ctmp;
108    ACCESS_DESCRIPTION *acc;
109    int i;
110    const int num = sk_CONF_VALUE_num(nval);
111    char *objtmp, *ptmp;
112
113    if ((ainfo = sk_ACCESS_DESCRIPTION_new_reserve(NULL, num)) == NULL) {
114        ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
115        return NULL;
116    }
117    for (i = 0; i < num; i++) {
118        cnf = sk_CONF_VALUE_value(nval, i);
119        if ((acc = ACCESS_DESCRIPTION_new()) == NULL) {
120            ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
121            goto err;
122        }
123        sk_ACCESS_DESCRIPTION_push(ainfo, acc); /* Cannot fail due to reserve */
124        ptmp = strchr(cnf->name, ';');
125        if (ptmp == NULL) {
126            ERR_raise(ERR_LIB_X509V3, X509V3_R_INVALID_SYNTAX);
127            goto err;
128        }
129        ctmp.name = ptmp + 1;
130        ctmp.value = cnf->value;
131        if (!v2i_GENERAL_NAME_ex(acc->location, method, ctx, &ctmp, 0))
132            goto err;
133        if ((objtmp = OPENSSL_strndup(cnf->name, ptmp - cnf->name)) == NULL) {
134            ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE);
135            goto err;
136        }
137        acc->method = OBJ_txt2obj(objtmp, 0);
138        if (!acc->method) {
139            ERR_raise_data(ERR_LIB_X509V3, X509V3_R_BAD_OBJECT,
140                           "value=%s", objtmp);
141            OPENSSL_free(objtmp);
142            goto err;
143        }
144        OPENSSL_free(objtmp);
145    }
146    return ainfo;
147 err:
148    sk_ACCESS_DESCRIPTION_pop_free(ainfo, ACCESS_DESCRIPTION_free);
149    return NULL;
150}
151
152int i2a_ACCESS_DESCRIPTION(BIO *bp, const ACCESS_DESCRIPTION *a)
153{
154    i2a_ASN1_OBJECT(bp, a->method);
155    return 2;
156}
157