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Commit | Line | Data |
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0f113f3e | 1 | /* |
454afd98 | 2 | * Copyright 1999-2020 The OpenSSL Project Authors. All Rights Reserved. |
175b0942 | 3 | * |
4286ca47 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
d2e9e320 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 | |
175b0942 DSH |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
b39fc560 | 11 | #include "internal/cryptlib.h" |
ec577822 BM |
12 | #include <openssl/conf.h> |
13 | #include <openssl/asn1.h> | |
9d6b1ce6 | 14 | #include <openssl/asn1t.h> |
ec577822 | 15 | #include <openssl/x509v3.h> |
df2ee0e2 | 16 | #include "ext_dat.h" |
175b0942 | 17 | |
852c2ed2 RS |
18 | DEFINE_STACK_OF(CONF_VALUE) |
19 | DEFINE_STACK_OF(GENERAL_NAME) | |
20 | ||
ba404b5e | 21 | static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, |
0f113f3e MC |
22 | AUTHORITY_KEYID *akeyid, |
23 | STACK_OF(CONF_VALUE) | |
24 | *extlist); | |
ba404b5e | 25 | static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, |
0f113f3e MC |
26 | X509V3_CTX *ctx, |
27 | STACK_OF(CONF_VALUE) *values); | |
28 | ||
29 | const X509V3_EXT_METHOD v3_akey_id = { | |
30 | NID_authority_key_identifier, | |
31 | X509V3_EXT_MULTILINE, ASN1_ITEM_ref(AUTHORITY_KEYID), | |
32 | 0, 0, 0, 0, | |
33 | 0, 0, | |
34 | (X509V3_EXT_I2V) i2v_AUTHORITY_KEYID, | |
35 | (X509V3_EXT_V2I)v2i_AUTHORITY_KEYID, | |
36 | 0, 0, | |
37 | NULL | |
38 | }; | |
175b0942 | 39 | |
ba404b5e | 40 | static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, |
0f113f3e MC |
41 | AUTHORITY_KEYID *akeyid, |
42 | STACK_OF(CONF_VALUE) | |
43 | *extlist) | |
175b0942 | 44 | { |
0f113f3e MC |
45 | char *tmp; |
46 | if (akeyid->keyid) { | |
14f051a0 | 47 | tmp = OPENSSL_buf2hexstr(akeyid->keyid->data, akeyid->keyid->length); |
17197a2f MC |
48 | if (tmp == NULL) { |
49 | ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE); | |
50 | return NULL; | |
51 | } | |
52 | X509V3_add_value((akeyid->issuer || akeyid->serial) ? "keyid" : NULL, | |
53 | tmp, &extlist); | |
0f113f3e MC |
54 | OPENSSL_free(tmp); |
55 | } | |
56 | if (akeyid->issuer) | |
57 | extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist); | |
58 | if (akeyid->serial) { | |
14f051a0 | 59 | tmp = OPENSSL_buf2hexstr(akeyid->serial->data, akeyid->serial->length); |
17197a2f MC |
60 | if (tmp == NULL) { |
61 | ERR_raise(ERR_LIB_X509V3, ERR_R_MALLOC_FAILURE); | |
62 | return NULL; | |
63 | } | |
0f113f3e MC |
64 | X509V3_add_value("serial", tmp, &extlist); |
65 | OPENSSL_free(tmp); | |
66 | } | |
67 | return extlist; | |
175b0942 DSH |
68 | } |
69 | ||
c80fd6b2 MC |
70 | /*- |
71 | * Currently two options: | |
0be9747b DSH |
72 | * keyid: use the issuers subject keyid, the value 'always' means its is |
73 | * an error if the issuer certificate doesn't have a key id. | |
74 | * issuer: use the issuers cert issuer and serial number. The default is | |
75 | * to only use this if keyid is not present. With the option 'always' | |
76 | * this is always included. | |
77 | */ | |
78 | ||
6b691a5c | 79 | static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, |
0f113f3e MC |
80 | X509V3_CTX *ctx, |
81 | STACK_OF(CONF_VALUE) *values) | |
82 | { | |
83 | char keyid = 0, issuer = 0; | |
84 | int i; | |
85 | CONF_VALUE *cnf; | |
86 | ASN1_OCTET_STRING *ikeyid = NULL; | |
87 | X509_NAME *isname = NULL; | |
88 | GENERAL_NAMES *gens = NULL; | |
89 | GENERAL_NAME *gen = NULL; | |
90 | ASN1_INTEGER *serial = NULL; | |
91 | X509_EXTENSION *ext; | |
92 | X509 *cert; | |
93 | AUTHORITY_KEYID *akeyid; | |
94 | ||
95 | for (i = 0; i < sk_CONF_VALUE_num(values); i++) { | |
96 | cnf = sk_CONF_VALUE_value(values, i); | |
86885c28 | 97 | if (strcmp(cnf->name, "keyid") == 0) { |
0f113f3e | 98 | keyid = 1; |
86885c28 | 99 | if (cnf->value && strcmp(cnf->value, "always") == 0) |
0f113f3e | 100 | keyid = 2; |
86885c28 | 101 | } else if (strcmp(cnf->name, "issuer") == 0) { |
0f113f3e | 102 | issuer = 1; |
86885c28 | 103 | if (cnf->value && strcmp(cnf->value, "always") == 0) |
0f113f3e MC |
104 | issuer = 2; |
105 | } else { | |
106 | X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, X509V3_R_UNKNOWN_OPTION); | |
107 | ERR_add_error_data(2, "name=", cnf->name); | |
108 | return NULL; | |
109 | } | |
110 | } | |
111 | ||
112 | if (!ctx || !ctx->issuer_cert) { | |
113 | if (ctx && (ctx->flags == CTX_TEST)) | |
114 | return AUTHORITY_KEYID_new(); | |
115 | X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, | |
116 | X509V3_R_NO_ISSUER_CERTIFICATE); | |
117 | return NULL; | |
118 | } | |
119 | ||
120 | cert = ctx->issuer_cert; | |
121 | ||
122 | if (keyid) { | |
123 | i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1); | |
124 | if ((i >= 0) && (ext = X509_get_ext(cert, i))) | |
125 | ikeyid = X509V3_EXT_d2i(ext); | |
126 | if (keyid == 2 && !ikeyid) { | |
127 | X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, | |
128 | X509V3_R_UNABLE_TO_GET_ISSUER_KEYID); | |
129 | return NULL; | |
130 | } | |
131 | } | |
132 | ||
133 | if ((issuer && !ikeyid) || (issuer == 2)) { | |
134 | isname = X509_NAME_dup(X509_get_issuer_name(cert)); | |
f422a514 | 135 | serial = ASN1_INTEGER_dup(X509_get_serialNumber(cert)); |
0f113f3e MC |
136 | if (!isname || !serial) { |
137 | X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, | |
138 | X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS); | |
139 | goto err; | |
140 | } | |
141 | } | |
142 | ||
75ebbd9a | 143 | if ((akeyid = AUTHORITY_KEYID_new()) == NULL) |
0f113f3e MC |
144 | goto err; |
145 | ||
146 | if (isname) { | |
75ebbd9a RS |
147 | if ((gens = sk_GENERAL_NAME_new_null()) == NULL |
148 | || (gen = GENERAL_NAME_new()) == NULL | |
0f113f3e MC |
149 | || !sk_GENERAL_NAME_push(gens, gen)) { |
150 | X509V3err(X509V3_F_V2I_AUTHORITY_KEYID, ERR_R_MALLOC_FAILURE); | |
151 | goto err; | |
152 | } | |
153 | gen->type = GEN_DIRNAME; | |
154 | gen->d.dirn = isname; | |
155 | } | |
156 | ||
157 | akeyid->issuer = gens; | |
97323d57 MC |
158 | gen = NULL; |
159 | gens = NULL; | |
0f113f3e MC |
160 | akeyid->serial = serial; |
161 | akeyid->keyid = ikeyid; | |
162 | ||
163 | return akeyid; | |
8382ec5d RL |
164 | |
165 | err: | |
97323d57 MC |
166 | sk_GENERAL_NAME_free(gens); |
167 | GENERAL_NAME_free(gen); | |
0f113f3e | 168 | X509_NAME_free(isname); |
f422a514 DSH |
169 | ASN1_INTEGER_free(serial); |
170 | ASN1_OCTET_STRING_free(ikeyid); | |
0f113f3e MC |
171 | return NULL; |
172 | } |