1 // Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include <stdio.h>
16 #include <string.h>
17
18 #include <openssl/asn1.h>
19 #include <openssl/asn1t.h>
20 #include <openssl/conf.h>
21 #include <openssl/err.h>
22 #include <openssl/mem.h>
23 #include <openssl/obj.h>
24 #include <openssl/x509.h>
25
26 #include "internal.h"
27
28
29 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(
30 const X509V3_EXT_METHOD *method, void *ext, STACK_OF(CONF_VALUE) *ret);
31 static void *v2i_AUTHORITY_INFO_ACCESS(const X509V3_EXT_METHOD *method,
32 const X509V3_CTX *ctx,
33 const STACK_OF(CONF_VALUE) *nval);
34
35 const X509V3_EXT_METHOD v3_info = {
36 NID_info_access,
37 X509V3_EXT_MULTILINE,
38 ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
39 0,
40 0,
41 0,
42 0,
43 0,
44 0,
45 i2v_AUTHORITY_INFO_ACCESS,
46 v2i_AUTHORITY_INFO_ACCESS,
47 0,
48 0,
49 NULL,
50 };
51
52 const X509V3_EXT_METHOD v3_sinfo = {
53 NID_sinfo_access,
54 X509V3_EXT_MULTILINE,
55 ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
56 0,
57 0,
58 0,
59 0,
60 0,
61 0,
62 i2v_AUTHORITY_INFO_ACCESS,
63 v2i_AUTHORITY_INFO_ACCESS,
64 0,
65 0,
66 NULL,
67 };
68
ASN1_SEQUENCE(ACCESS_DESCRIPTION)69 ASN1_SEQUENCE(ACCESS_DESCRIPTION) = {
70 ASN1_SIMPLE(ACCESS_DESCRIPTION, method, ASN1_OBJECT),
71 ASN1_SIMPLE(ACCESS_DESCRIPTION, location, GENERAL_NAME),
72 } ASN1_SEQUENCE_END(ACCESS_DESCRIPTION)
73
74 IMPLEMENT_ASN1_ALLOC_FUNCTIONS(ACCESS_DESCRIPTION)
75
76 ASN1_ITEM_TEMPLATE(AUTHORITY_INFO_ACCESS) = ASN1_EX_TEMPLATE_TYPE(
77 ASN1_TFLG_SEQUENCE_OF, 0, GeneralNames, ACCESS_DESCRIPTION)
78 ASN1_ITEM_TEMPLATE_END(AUTHORITY_INFO_ACCESS)
79
80 IMPLEMENT_ASN1_FUNCTIONS(AUTHORITY_INFO_ACCESS)
81
82 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(
83 const X509V3_EXT_METHOD *method, void *ext, STACK_OF(CONF_VALUE) *ret) {
84 const AUTHORITY_INFO_ACCESS *ainfo =
85 reinterpret_cast<const AUTHORITY_INFO_ACCESS *>(ext);
86 ACCESS_DESCRIPTION *desc;
87 char objtmp[80], *name;
88 CONF_VALUE *vtmp;
89 STACK_OF(CONF_VALUE) *tret = ret;
90
91 for (size_t i = 0; i < sk_ACCESS_DESCRIPTION_num(ainfo); i++) {
92 STACK_OF(CONF_VALUE) *tmp;
93
94 desc = sk_ACCESS_DESCRIPTION_value(ainfo, i);
95 tmp = i2v_GENERAL_NAME(method, desc->location, tret);
96 if (tmp == NULL) {
97 goto err;
98 }
99 tret = tmp;
100 vtmp = sk_CONF_VALUE_value(tret, i);
101 i2t_ASN1_OBJECT(objtmp, sizeof objtmp, desc->method);
102
103 if (OPENSSL_asprintf(&name, "%s - %s", objtmp, vtmp->name) == -1) {
104 goto err;
105 }
106 OPENSSL_free(vtmp->name);
107 vtmp->name = name;
108 }
109 if (ret == NULL && tret == NULL) {
110 return sk_CONF_VALUE_new_null();
111 }
112
113 return tret;
114 err:
115 if (ret == NULL && tret != NULL) {
116 sk_CONF_VALUE_pop_free(tret, X509V3_conf_free);
117 }
118 return NULL;
119 }
120
v2i_AUTHORITY_INFO_ACCESS(const X509V3_EXT_METHOD * method,const X509V3_CTX * ctx,const STACK_OF (CONF_VALUE)* nval)121 static void *v2i_AUTHORITY_INFO_ACCESS(const X509V3_EXT_METHOD *method,
122 const X509V3_CTX *ctx,
123 const STACK_OF(CONF_VALUE) *nval) {
124 bssl::UniquePtr<AUTHORITY_INFO_ACCESS> ainfo(sk_ACCESS_DESCRIPTION_new_null());
125 if (ainfo == nullptr) {
126 return nullptr;
127 }
128 for (size_t i = 0; i < sk_CONF_VALUE_num(nval); i++) {
129 const CONF_VALUE *cnf = sk_CONF_VALUE_value(nval, i);
130 bssl::UniquePtr<ACCESS_DESCRIPTION> acc(ACCESS_DESCRIPTION_new());
131 if (acc == nullptr) {
132 return nullptr;
133 }
134 char *ptmp = strchr(cnf->name, ';');
135 if (!ptmp) {
136 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_SYNTAX);
137 return nullptr;
138 }
139 CONF_VALUE ctmp;
140 ctmp.name = ptmp + 1;
141 ctmp.value = cnf->value;
142 if (!v2i_GENERAL_NAME_ex(acc->location, method, ctx, &ctmp, 0)) {
143 return nullptr;
144 }
145 bssl::UniquePtr<char> objtmp(OPENSSL_strndup(cnf->name, ptmp - cnf->name));
146 if (objtmp == nullptr) {
147 return nullptr;
148 }
149 acc->method = OBJ_txt2obj(objtmp.get(), 0);
150 if (!acc->method) {
151 OPENSSL_PUT_ERROR(X509V3, X509V3_R_BAD_OBJECT);
152 ERR_add_error_data(2, "value=", objtmp.get());
153 return nullptr;
154 }
155 if (!bssl::PushToStack(ainfo.get(), std::move(acc))) {
156 return nullptr;
157 }
158 }
159 return ainfo.release();
160 }
161