]>
Commit | Line | Data |
---|---|---|
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 | |
69 | static STACK *i2v_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, AUTHORITY_KEYID *akeyid, STACK *extlist); | |
70 | static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK *values); | |
71 | ||
72 | #else | |
73 | ||
74 | static STACK *i2v_AUTHORITY_KEYID(); | |
75 | static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(); | |
76 | ||
77 | #endif | |
78 | ||
79 | X509V3_EXT_METHOD v3_akey_id = { | |
80 | NID_authority_key_identifier, 0, | |
81 | (X509V3_EXT_NEW)AUTHORITY_KEYID_new, | |
82 | AUTHORITY_KEYID_free, | |
83 | (X509V3_EXT_D2I)d2i_AUTHORITY_KEYID, | |
84 | i2d_AUTHORITY_KEYID, | |
85 | NULL, NULL, | |
86 | (X509V3_EXT_I2V)i2v_AUTHORITY_KEYID, | |
87 | (X509V3_EXT_V2I)v2i_AUTHORITY_KEYID, | |
88 | NULL, | |
89 | NULL | |
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 | ||
98 | int i2d_AUTHORITY_KEYID(a,pp) | |
99 | AUTHORITY_KEYID *a; | |
100 | unsigned 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 | ||
117 | AUTHORITY_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 | ||
129 | AUTHORITY_KEYID *d2i_AUTHORITY_KEYID(a,pp,length) | |
130 | AUTHORITY_KEYID **a; | |
131 | unsigned char **pp; | |
132 | long 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 | ||
146 | void AUTHORITY_KEYID_free(a) | |
147 | AUTHORITY_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 | ||
156 | static STACK *i2v_AUTHORITY_KEYID(method, akeyid, extlist) | |
157 | X509V3_EXT_METHOD *method; | |
158 | AUTHORITY_KEYID *akeyid; | |
159 | STACK *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 | ||
0be9747b DSH |
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 |
186 | static AUTHORITY_KEYID *v2i_AUTHORITY_KEYID(method, ctx, values) |
187 | X509V3_EXT_METHOD *method; | |
188 | X509V3_CTX *ctx; | |
189 | STACK *values; | |
190 | { | |
0be9747b DSH |
191 | char keyid=0, issuer=0; |
192 | int i; | |
193 | CONF_VALUE *cnf; | |
194 | ASN1_OCTET_STRING *ikeyid = NULL; | |
195 | X509_NAME *isname = NULL; | |
196 | STACK * gens = NULL; | |
197 | GENERAL_NAME *gen = NULL; | |
198 | ASN1_INTEGER *serial = NULL; | |
199 | X509_EXTENSION *ext; | |
200 | X509 *cert; | |
201 | AUTHORITY_KEYID *akeyid; | |
202 | for(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 | ||
219 | if(!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 | ||
225 | cert = ctx->issuer_cert; | |
226 | ||
227 | if(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 | ||
237 | if((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 | ||
246 | if(!(akeyid = AUTHORITY_KEYID_new())) goto err; | |
247 | ||
248 | if(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 | ||
258 | akeyid->issuer = gens; | |
259 | akeyid->serial = serial; | |
260 | akeyid->keyid = ikeyid; | |
261 | ||
262 | return akeyid; | |
263 | ||
264 | err: | |
265 | X509_NAME_free(isname); | |
266 | ASN1_INTEGER_free(serial); | |
267 | ASN1_OCTET_STRING_free(ikeyid); | |
175b0942 | 268 | return NULL; |
0be9747b | 269 | |
175b0942 DSH |
270 | } |
271 |