2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
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
11 #include "internal/cryptlib.h"
12 #include <openssl/safestack.h>
13 #include <openssl/asn1.h>
14 #include <openssl/objects.h>
15 #include <openssl/evp.h>
16 #include <openssl/x509.h>
17 #include "internal/x509_int.h"
19 int X509_NAME_get_text_by_NID(X509_NAME *name, int nid, char *buf, int len)
23 obj = OBJ_nid2obj(nid);
26 return X509_NAME_get_text_by_OBJ(name, obj, buf, len);
29 int X509_NAME_get_text_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj,
33 const ASN1_STRING *data;
35 i = X509_NAME_get_index_by_OBJ(name, obj, -1);
38 data = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, i));
43 i = (data->length > (len - 1)) ? (len - 1) : data->length;
44 memcpy(buf, data->data, i);
49 int X509_NAME_entry_count(const X509_NAME *name)
53 return sk_X509_NAME_ENTRY_num(name->entries);
56 int X509_NAME_get_index_by_NID(X509_NAME *name, int nid, int lastpos)
60 obj = OBJ_nid2obj(nid);
63 return X509_NAME_get_index_by_OBJ(name, obj, lastpos);
66 /* NOTE: you should be passing -1, not 0 as lastpos */
67 int X509_NAME_get_index_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj, int lastpos)
71 STACK_OF(X509_NAME_ENTRY) *sk;
78 n = sk_X509_NAME_ENTRY_num(sk);
79 for (lastpos++; lastpos < n; lastpos++) {
80 ne = sk_X509_NAME_ENTRY_value(sk, lastpos);
81 if (OBJ_cmp(ne->object, obj) == 0)
87 X509_NAME_ENTRY *X509_NAME_get_entry(const X509_NAME *name, int loc)
89 if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
93 return sk_X509_NAME_ENTRY_value(name->entries, loc);
96 X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc)
99 int i, n, set_prev, set_next;
100 STACK_OF(X509_NAME_ENTRY) *sk;
102 if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
107 ret = sk_X509_NAME_ENTRY_delete(sk, loc);
108 n = sk_X509_NAME_ENTRY_num(sk);
113 /* else we need to fixup the set field */
115 set_prev = (sk_X509_NAME_ENTRY_value(sk, loc - 1))->set;
117 set_prev = ret->set - 1;
118 set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set;
121 * set_prev is the previous set
122 * set is the current set
123 * set_next is the following
124 * prev 1 1 1 1 1 1 1 1
126 * next 1 1 2 2 2 2 3 2
127 * so basically only if prev and next differ by 2, then
128 * re-number down by 1
130 if (set_prev + 1 < set_next)
131 for (i = loc; i < n; i++)
132 sk_X509_NAME_ENTRY_value(sk, i)->set--;
136 int X509_NAME_add_entry_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj, int type,
137 const unsigned char *bytes, int len, int loc,
143 ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len);
146 ret = X509_NAME_add_entry(name, ne, loc, set);
147 X509_NAME_ENTRY_free(ne);
151 int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
152 const unsigned char *bytes, int len, int loc,
157 ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len);
160 ret = X509_NAME_add_entry(name, ne, loc, set);
161 X509_NAME_ENTRY_free(ne);
165 int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type,
166 const unsigned char *bytes, int len, int loc,
171 ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len);
174 ret = X509_NAME_add_entry(name, ne, loc, set);
175 X509_NAME_ENTRY_free(ne);
180 * if set is -1, append to previous set, 0 'a new one', and 1, prepend to the
181 * guy we are about to stomp on.
183 int X509_NAME_add_entry(X509_NAME *name, const X509_NAME_ENTRY *ne, int loc,
186 X509_NAME_ENTRY *new_name = NULL;
188 STACK_OF(X509_NAME_ENTRY) *sk;
193 n = sk_X509_NAME_ENTRY_num(sk);
206 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set;
208 } else { /* if (set >= 0) */
212 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set + 1;
216 set = sk_X509_NAME_ENTRY_value(sk, loc)->set;
220 * X509_NAME_ENTRY_dup is ASN1 generated code, that can't be easily
221 * const'ified; harmless cast since dup() don't modify its input.
223 if ((new_name = X509_NAME_ENTRY_dup((X509_NAME_ENTRY *)ne)) == NULL)
226 if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) {
227 X509err(X509_F_X509_NAME_ADD_ENTRY, ERR_R_MALLOC_FAILURE);
231 n = sk_X509_NAME_ENTRY_num(sk);
232 for (i = loc + 1; i < n; i++)
233 sk_X509_NAME_ENTRY_value(sk, i)->set += 1;
237 X509_NAME_ENTRY_free(new_name);
241 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne,
242 const char *field, int type,
243 const unsigned char *bytes,
247 X509_NAME_ENTRY *nentry;
249 obj = OBJ_txt2obj(field, 0);
251 X509err(X509_F_X509_NAME_ENTRY_CREATE_BY_TXT,
252 X509_R_INVALID_FIELD_NAME);
253 ERR_add_error_data(2, "name=", field);
256 nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
257 ASN1_OBJECT_free(obj);
261 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,
263 const unsigned char *bytes,
267 X509_NAME_ENTRY *nentry;
269 obj = OBJ_nid2obj(nid);
271 X509err(X509_F_X509_NAME_ENTRY_CREATE_BY_NID, X509_R_UNKNOWN_NID);
274 nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
275 ASN1_OBJECT_free(obj);
279 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne,
280 const ASN1_OBJECT *obj, int type,
281 const unsigned char *bytes,
284 X509_NAME_ENTRY *ret;
286 if ((ne == NULL) || (*ne == NULL)) {
287 if ((ret = X509_NAME_ENTRY_new()) == NULL)
292 if (!X509_NAME_ENTRY_set_object(ret, obj))
294 if (!X509_NAME_ENTRY_set_data(ret, type, bytes, len))
297 if ((ne != NULL) && (*ne == NULL))
301 if ((ne == NULL) || (ret != *ne))
302 X509_NAME_ENTRY_free(ret);
306 int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, const ASN1_OBJECT *obj)
308 if ((ne == NULL) || (obj == NULL)) {
309 X509err(X509_F_X509_NAME_ENTRY_SET_OBJECT,
310 ERR_R_PASSED_NULL_PARAMETER);
313 ASN1_OBJECT_free(ne->object);
314 ne->object = OBJ_dup(obj);
315 return ((ne->object == NULL) ? 0 : 1);
318 int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
319 const unsigned char *bytes, int len)
323 if ((ne == NULL) || ((bytes == NULL) && (len != 0)))
325 if ((type > 0) && (type & MBSTRING_FLAG))
326 return ASN1_STRING_set_by_NID(&ne->value, bytes,
328 OBJ_obj2nid(ne->object)) ? 1 : 0;
330 len = strlen((const char *)bytes);
331 i = ASN1_STRING_set(ne->value, bytes, len);
334 if (type != V_ASN1_UNDEF) {
335 if (type == V_ASN1_APP_CHOOSE)
336 ne->value->type = ASN1_PRINTABLE_type(bytes, len);
338 ne->value->type = type;
343 ASN1_OBJECT *X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne)
350 ASN1_STRING *X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne)
357 int X509_NAME_ENTRY_set(const X509_NAME_ENTRY *ne)