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1 | /* crypto/x509/x509_att.c */ |
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
3 | * All rights reserved. | |
4 | * | |
5 | * This package is an SSL implementation written | |
6 | * by Eric Young (eay@cryptsoft.com). | |
7 | * The implementation was written so as to conform with Netscapes SSL. | |
8 | * | |
9 | * This library is free for commercial and non-commercial use as long as | |
10 | * the following conditions are aheared to. The following conditions | |
11 | * apply to all code found in this distribution, be it the RC4, RSA, | |
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
13 | * included with this distribution is covered by the same copyright terms | |
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
15 | * | |
16 | * Copyright remains Eric Young's, and as such any Copyright notices in | |
17 | * the code are not to be removed. | |
18 | * If this package is used in a product, Eric Young should be given attribution | |
19 | * as the author of the parts of the library used. | |
20 | * This can be in the form of a textual message at program startup or | |
21 | * in documentation (online or textual) provided with the package. | |
22 | * | |
23 | * Redistribution and use in source and binary forms, with or without | |
24 | * modification, are permitted provided that the following conditions | |
25 | * are met: | |
26 | * 1. Redistributions of source code must retain the copyright | |
27 | * notice, this list of conditions and the following disclaimer. | |
28 | * 2. Redistributions in binary form must reproduce the above copyright | |
29 | * notice, this list of conditions and the following disclaimer in the | |
30 | * documentation and/or other materials provided with the distribution. | |
31 | * 3. All advertising materials mentioning features or use of this software | |
32 | * must display the following acknowledgement: | |
33 | * "This product includes cryptographic software written by | |
34 | * Eric Young (eay@cryptsoft.com)" | |
35 | * The word 'cryptographic' can be left out if the rouines from the library | |
36 | * being used are not cryptographic related :-). | |
37 | * 4. If you include any Windows specific code (or a derivative thereof) from | |
38 | * the apps directory (application code) you must include an acknowledgement: | |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
40 | * | |
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
51 | * SUCH DAMAGE. | |
52 | * | |
53 | * The licence and distribution terms for any publically available version or | |
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
55 | * copied and put under another distribution licence | |
56 | * [including the GNU Public Licence.] | |
57 | */ | |
58 | ||
59 | #include <stdio.h> | |
60 | #include <openssl/stack.h> | |
61 | #include "cryptlib.h" | |
62 | #include <openssl/asn1.h> | |
63 | #include <openssl/objects.h> | |
64 | #include <openssl/evp.h> | |
65 | #include <openssl/x509.h> | |
66 | #include <openssl/x509v3.h> | |
67 | ||
68 | int X509_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x) | |
69 | { | |
70 | if (!x) return 0; | |
71 | return(sk_X509_ATTRIBUTE_num(x)); | |
72 | } | |
73 | ||
74 | int X509_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid, | |
75 | int lastpos) | |
76 | { | |
77 | ASN1_OBJECT *obj; | |
78 | ||
79 | obj=OBJ_nid2obj(nid); | |
80 | if (obj == NULL) return(-2); | |
81 | return(X509_get_attr_by_OBJ(x,obj,lastpos)); | |
82 | } | |
83 | ||
84 | int X509_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk, ASN1_OBJECT *obj, | |
85 | int lastpos) | |
86 | { | |
87 | int n; | |
88 | X509_ATTRIBUTE *ex; | |
89 | ||
90 | if (sk == NULL) return(-1); | |
91 | lastpos++; | |
92 | if (lastpos < 0) | |
93 | lastpos=0; | |
94 | n=sk_X509_ATTRIBUTE_num(sk); | |
95 | for ( ; lastpos < n; lastpos++) | |
96 | { | |
97 | ex=sk_X509_ATTRIBUTE_value(sk,lastpos); | |
98 | if (OBJ_cmp(ex->object,obj) == 0) | |
99 | return(lastpos); | |
100 | } | |
101 | return(-1); | |
102 | } | |
103 | ||
104 | X509_ATTRIBUTE *X509_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc) | |
105 | { | |
106 | if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0) | |
107 | return NULL; | |
108 | else | |
109 | return sk_X509_ATTRIBUTE_value(x,loc); | |
110 | } | |
111 | ||
112 | X509_ATTRIBUTE *X509_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc) | |
113 | { | |
114 | X509_ATTRIBUTE *ret; | |
115 | ||
116 | if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0) | |
117 | return(NULL); | |
118 | ret=sk_X509_ATTRIBUTE_delete(x,loc); | |
119 | return(ret); | |
120 | } | |
121 | ||
122 | STACK_OF(X509_ATTRIBUTE) *X509_radd_attr(STACK_OF(X509_ATTRIBUTE) **x, | |
123 | X509_ATTRIBUTE *attr, int loc) | |
124 | { | |
125 | X509_ATTRIBUTE *new_attr=NULL; | |
126 | int n; | |
127 | STACK_OF(X509_ATTRIBUTE) *sk=NULL; | |
128 | ||
129 | if ((x != NULL) && (*x == NULL)) | |
130 | { | |
131 | if ((sk=sk_X509_ATTRIBUTE_new_null()) == NULL) | |
132 | goto err; | |
133 | } | |
134 | else | |
135 | sk= *x; | |
136 | ||
137 | n=sk_X509_ATTRIBUTE_num(sk); | |
138 | if (loc > n) loc=n; | |
139 | else if (loc < 0) loc=n; | |
140 | ||
141 | if ((new_attr=X509_ATTRIBUTE_dup(attr)) == NULL) | |
142 | goto err2; | |
143 | if (!sk_X509_ATTRIBUTE_insert(sk,new_attr,loc)) | |
144 | goto err; | |
145 | if ((x != NULL) && (*x == NULL)) | |
146 | *x=sk; | |
147 | return(sk); | |
148 | err: | |
149 | X509err(X509_F_X509_ADD_ATTR,ERR_R_MALLOC_FAILURE); | |
150 | err2: | |
151 | if (new_attr != NULL) X509_ATTRIBUTE_free(new_attr); | |
152 | if (sk != NULL) sk_X509_ATTRIBUTE_free(sk); | |
153 | return(NULL); | |
154 | } | |
155 | ||
156 | X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid, | |
157 | int atrtype, void *data) | |
158 | { | |
159 | ASN1_OBJECT *obj; | |
160 | X509_ATTRIBUTE *ret; | |
161 | ||
162 | obj=OBJ_nid2obj(nid); | |
163 | if (obj == NULL) | |
164 | { | |
165 | X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_NID,X509_R_UNKNOWN_NID); | |
166 | return(NULL); | |
167 | } | |
168 | ret=X509_ATTRIBUTE_create_by_OBJ(attr,obj,atrtype,data); | |
169 | if (ret == NULL) ASN1_OBJECT_free(obj); | |
170 | return(ret); | |
171 | } | |
172 | ||
173 | X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr, | |
174 | ASN1_OBJECT *obj, int atrtype, void *data) | |
175 | { | |
176 | X509_ATTRIBUTE *ret; | |
177 | ||
178 | if ((attr == NULL) || (*attr == NULL)) | |
179 | { | |
180 | if ((ret=X509_ATTRIBUTE_new()) == NULL) | |
181 | { | |
182 | X509err(X509_F_X509_ATTRIBUTE_CREATE_BY_OBJ,ERR_R_MALLOC_FAILURE); | |
183 | return(NULL); | |
184 | } | |
185 | } | |
186 | else | |
187 | ret= *attr; | |
188 | ||
189 | if (!X509_ATTRIBUTE_rset_object(ret,obj)) | |
190 | goto err; | |
191 | if (!X509_ATTRIBUTE_iset_data(ret,atrtype,data)) | |
192 | goto err; | |
193 | ||
194 | if ((attr != NULL) && (*attr == NULL)) *attr=ret; | |
195 | return(ret); | |
196 | err: | |
197 | if ((attr == NULL) || (ret != *attr)) | |
198 | X509_ATTRIBUTE_free(ret); | |
199 | return(NULL); | |
200 | } | |
201 | ||
202 | int X509_ATTRIBUTE_rset_object(X509_ATTRIBUTE *attr, ASN1_OBJECT *obj) | |
203 | { | |
204 | if ((attr == NULL) || (obj == NULL)) | |
205 | return(0); | |
206 | ASN1_OBJECT_free(attr->object); | |
207 | attr->object=OBJ_dup(obj); | |
208 | return(1); | |
209 | } | |
210 | ||
211 | int X509_ATTRIBUTE_iset_data(X509_ATTRIBUTE *attr, int attrtype, void *data) | |
212 | { | |
213 | ASN1_TYPE *ttmp; | |
214 | if (!attr) return 0; | |
215 | if(!(attr->value.set = sk_ASN1_TYPE_new_null())) goto err; | |
216 | if(!(ttmp = ASN1_TYPE_new())) goto err; | |
217 | if(!sk_ASN1_TYPE_push(attr->value.set, ttmp)) goto err; | |
218 | attr->set = 1; | |
219 | ASN1_TYPE_set(ttmp, attrtype, data); | |
220 | return 1; | |
221 | err: | |
222 | X509err(X509_F_X509_ATTRIBUTE_ISET_DATA, ERR_R_MALLOC_FAILURE); | |
223 | return 0; | |
224 | } | |
225 | ||
226 | int X509_ATTRIBUTE_count(X509_ATTRIBUTE *attr) | |
227 | { | |
228 | if(attr->set) return sk_ASN1_TYPE_num(attr->value.set); | |
229 | if(attr->value.single) return 1; | |
230 | return 0; | |
231 | } | |
232 | ||
233 | ASN1_OBJECT *X509_ATTRIBUTE_iget_object(X509_ATTRIBUTE *attr) | |
234 | { | |
235 | if (attr == NULL) return(NULL); | |
236 | return(attr->object); | |
237 | } | |
238 | ||
239 | void *X509_ATTRIBUTE_iget_data(X509_ATTRIBUTE *attr, int idx, | |
240 | int atrtype, void *data) | |
241 | { | |
242 | ASN1_TYPE *ttmp; | |
243 | ttmp = X509_ATTRIBUTE_type_iget(attr, idx); | |
244 | if(!ttmp) return NULL; | |
245 | if(atrtype != ASN1_TYPE_get(ttmp)){ | |
246 | X509err(X509_F_X509_ATTRIBUTE_IGET_DATA, X509_R_WRONG_TYPE); | |
247 | return NULL; | |
248 | } | |
249 | return ttmp->value.ptr; | |
250 | } | |
251 | ||
252 | ASN1_TYPE *X509_ATTRIBUTE_type_iget(X509_ATTRIBUTE *attr, int idx) | |
253 | { | |
254 | if (attr == NULL) return(NULL); | |
255 | if(idx >= X509_ATTRIBUTE_count(attr)) return NULL; | |
256 | if(attr->set) return sk_ASN1_TYPE_value(attr->value.set, idx); | |
257 | else return attr->value.single; | |
258 | } |