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More stuff for new TLS ciphersuites.
[thirdparty/openssl.git] / crypto / x509v3 / v3_akey.c
CommitLineData
175b0942
DSH
1/* v3_akey.c */
2/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
3 * project 1999.
4 */
5/* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59#include <stdio.h>
60#include <stdlib.h>
61#include <pem.h>
62#include <asn1_mac.h>
63#include <err.h>
64#include <objects.h>
65#include <conf.h>
66#include "x509v3.h"
67
68#ifndef NOPROTO
69static STACK *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, AUTHORITY_KEYID *akeyid, STACK *extlist);
70static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK *values);
71
72#else
73
74static STACK *i2v_AUTHORITY_KEYID();
75static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID();
76
77#endif
78
79X509V3_EXT_METHOD v3_akey_id = {
80NID_authority_key_identifier, 0,
81(X509V3_EXT_NEW)AUTHORITY_KEYID_new,
82AUTHORITY_KEYID_free,
83(X509V3_EXT_D2I)d2i_AUTHORITY_KEYID,
84i2d_AUTHORITY_KEYID,
85NULL, NULL,
86(X509V3_EXT_I2V)i2v_AUTHORITY_KEYID,
87(X509V3_EXT_V2I)v2i_AUTHORITY_KEYID,
88NULL,
89NULL
90};
91
92
93/*
94 * ASN1err(ASN1_F_AUTHORITY_KEYID_NEW,ERR_R_MALLOC_FAILURE);
95 * ASN1err(ASN1_F_D2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
96 */
97
98int i2d_AUTHORITY_KEYID(a,pp)
99AUTHORITY_KEYID *a;
100unsigned char **pp;
101{
102 M_ASN1_I2D_vars(a);
103
104 M_ASN1_I2D_len_IMP_opt (a->keyid, i2d_ASN1_OCTET_STRING);
105 M_ASN1_I2D_len_IMP_opt (a->issuer, i2d_GENERAL_NAMES);
106 M_ASN1_I2D_len_IMP_opt (a->serial, i2d_ASN1_INTEGER);
107
108 M_ASN1_I2D_seq_total();
109
110 M_ASN1_I2D_put_IMP_opt (a->keyid, i2d_ASN1_OCTET_STRING, 0);
111 M_ASN1_I2D_put_IMP_opt (a->issuer, i2d_GENERAL_NAMES, 1);
112 M_ASN1_I2D_put_IMP_opt (a->serial, i2d_ASN1_INTEGER, 2);
113
114 M_ASN1_I2D_finish();
115}
116
117AUTHORITY_KEYID *AUTHORITY_KEYID_new()
118{
119 AUTHORITY_KEYID *ret=NULL;
120 ASN1_CTX c;
121 M_ASN1_New_Malloc(ret, AUTHORITY_KEYID);
122 ret->keyid = NULL;
123 ret->issuer = NULL;
124 ret->serial = NULL;
125 return (ret);
126 M_ASN1_New_Error(ASN1_F_AUTHORITY_KEYID_NEW);
127}
128
129AUTHORITY_KEYID *d2i_AUTHORITY_KEYID(a,pp,length)
130AUTHORITY_KEYID **a;
131unsigned char **pp;
132long length;
133{
134 M_ASN1_D2I_vars(a,AUTHORITY_KEYID *,AUTHORITY_KEYID_new);
135 M_ASN1_D2I_Init();
136 M_ASN1_D2I_start_sequence();
137 M_ASN1_D2I_get_IMP_opt (ret->keyid, d2i_ASN1_OCTET_STRING, 0,
138 V_ASN1_OCTET_STRING);
139 M_ASN1_D2I_get_IMP_opt (ret->issuer, d2i_GENERAL_NAMES, 1,
140 V_ASN1_SEQUENCE);
141 M_ASN1_D2I_get_IMP_opt (ret->serial, d2i_ASN1_INTEGER, 2,
142 V_ASN1_INTEGER);
143 M_ASN1_D2I_Finish(a, AUTHORITY_KEYID_free, ASN1_F_D2I_AUTHORITY_KEYID);
144}
145
146void AUTHORITY_KEYID_free(a)
147AUTHORITY_KEYID *a;
148{
149 if (a == NULL) return;
150 ASN1_OCTET_STRING_free(a->keyid);
151 sk_pop_free(a->issuer, GENERAL_NAME_free);
152 ASN1_INTEGER_free (a->serial);
153 Free ((char *)a);
154}
155
156static STACK *i2v_AUTHORITY_KEYID(method, akeyid, extlist)
157X509V3_EXT_METHOD *method;
158AUTHORITY_KEYID *akeyid;
159STACK *extlist;
160{
161 char *tmp;
162 if(akeyid->keyid) {
163 tmp = hex_to_string(akeyid->keyid->data, akeyid->keyid->length);
164 X509V3_add_value("keyid", tmp, &extlist);
165 Free(tmp);
166 }
167 if(akeyid->issuer)
168 extlist = i2v_GENERAL_NAMES(NULL, akeyid->issuer, extlist);
169 if(akeyid->serial) {
170 tmp = hex_to_string(akeyid->serial->data,
171 akeyid->serial->length);
172 X509V3_add_value("serial", tmp, &extlist);
173 Free(tmp);
174 }
175 return extlist;
176}
177
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178/* Currently two options:
179 * keyid: use the issuers subject keyid, the value 'always' means its is
180 * an error if the issuer certificate doesn't have a key id.
181 * issuer: use the issuers cert issuer and serial number. The default is
182 * to only use this if keyid is not present. With the option 'always'
183 * this is always included.
184 */
185
175b0942
DSH
186static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(method, ctx, values)
187X509V3_EXT_METHOD *method;
188X509V3_CTX *ctx;
189STACK *values;
190{
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DSH
191char keyid=0, issuer=0;
192int i;
193CONF_VALUE *cnf;
194ASN1_OCTET_STRING *ikeyid = NULL;
195X509_NAME *isname = NULL;
196STACK * gens = NULL;
197GENERAL_NAME *gen = NULL;
198ASN1_INTEGER *serial = NULL;
199X509_EXTENSION *ext;
200X509 *cert;
201AUTHORITY_KEYID *akeyid;
202for(i = 0; i < sk_num(values); i++) {
203 cnf = (CONF_VALUE *)sk_value(values, i);
204 if(!strcmp(cnf->name, "keyid")) {
205 keyid = 1;
206 if(cnf->value && !strcmp(cnf->value, "always")) keyid = 2;
207 } else if(!strcmp(cnf->name, "issuer")) {
208 issuer = 1;
209 if(cnf->value && !strcmp(cnf->value, "always")) issuer = 2;
210 } else {
211 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNKNOWN_OPTION);
212 ERR_add_error_data(2, "name=", cnf->name);
213 return NULL;
214 }
215}
216
217
218
219if(!ctx || !ctx->issuer_cert) {
220 if(ctx && (ctx->flags==CTX_TEST)) return AUTHORITY_KEYID_new();
221 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_NO_ISSUER_CERTIFICATE);
222 return NULL;
223}
224
225cert = ctx->issuer_cert;
226
227if(keyid) {
228 i = X509_get_ext_by_NID(cert, NID_subject_key_identifier, -1);
229 if((i >= 0) && (ext = X509_get_ext(cert, i)))
230 ikeyid = (ASN1_OCTET_STRING *) X509V3_EXT_d2i(ext);
231 if(keyid==2 && !ikeyid) {
232 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_KEYID);
233 return NULL;
234 }
235}
236
237if((issuer && !ikeyid) || (issuer == 2)) {
238 isname = X509_NAME_dup(X509_get_issuer_name(cert));
239 serial = ASN1_INTEGER_dup(X509_get_serialNumber(cert));
240 if(!isname || !serial) {
241 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS);
242 goto err;
243 }
244}
245
246if(!(akeyid = AUTHORITY_KEYID_new())) goto err;
247
248if(isname) {
249 if(!(gens = sk_new(NULL)) || !(gen = GENERAL_NAME_new())
250 || !sk_push(gens, (char *)gen)) {
251 X509V3err(X509V3_F_V2I_AUTHORITY_KEYID,ERR_R_MALLOC_FAILURE);
252 goto err;
253 }
254 gen->type = GEN_DIRNAME;
255 gen->d.dirn = isname;
256}
257
258akeyid->issuer = gens;
259akeyid->serial = serial;
260akeyid->keyid = ikeyid;
261
262return akeyid;
263
264err:
265X509_NAME_free(isname);
266ASN1_INTEGER_free(serial);
267ASN1_OCTET_STRING_free(ikeyid);
175b0942 268return NULL;
0be9747b 269
175b0942
DSH
270}
271