2 * Copyright 1995-2020 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 "crypto/x509.h"
19 int X509_NAME_get_text_by_NID(const X509_NAME *name, int nid,
24 obj = OBJ_nid2obj(nid);
27 return X509_NAME_get_text_by_OBJ(name, obj, buf, len);
30 int X509_NAME_get_text_by_OBJ(const X509_NAME *name, const ASN1_OBJECT *obj,
34 const ASN1_STRING *data;
36 i = X509_NAME_get_index_by_OBJ(name, obj, -1);
39 data = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, i));
44 i = (data->length > (len - 1)) ? (len - 1) : data->length;
45 memcpy(buf, data->data, i);
50 int X509_NAME_entry_count(const X509_NAME *name)
54 return sk_X509_NAME_ENTRY_num(name->entries);
57 int X509_NAME_get_index_by_NID(const X509_NAME *name, int nid, int lastpos)
61 obj = OBJ_nid2obj(nid);
64 return X509_NAME_get_index_by_OBJ(name, obj, lastpos);
67 /* NOTE: you should be passing -1, not 0 as lastpos */
68 int X509_NAME_get_index_by_OBJ(const X509_NAME *name, const ASN1_OBJECT *obj,
73 STACK_OF(X509_NAME_ENTRY) *sk;
80 n = sk_X509_NAME_ENTRY_num(sk);
81 for (lastpos++; lastpos < n; lastpos++) {
82 ne = sk_X509_NAME_ENTRY_value(sk, lastpos);
83 if (OBJ_cmp(ne->object, obj) == 0)
89 X509_NAME_ENTRY *X509_NAME_get_entry(const X509_NAME *name, int loc)
91 if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
95 return sk_X509_NAME_ENTRY_value(name->entries, loc);
98 X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc)
100 X509_NAME_ENTRY *ret;
101 int i, n, set_prev, set_next;
102 STACK_OF(X509_NAME_ENTRY) *sk;
104 if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
109 ret = sk_X509_NAME_ENTRY_delete(sk, loc);
110 n = sk_X509_NAME_ENTRY_num(sk);
115 /* else we need to fixup the set field */
117 set_prev = (sk_X509_NAME_ENTRY_value(sk, loc - 1))->set;
119 set_prev = ret->set - 1;
120 set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set;
123 * set_prev is the previous set
124 * set is the current set
125 * set_next is the following
126 * prev 1 1 1 1 1 1 1 1
128 * next 1 1 2 2 2 2 3 2
129 * so basically only if prev and next differ by 2, then
130 * re-number down by 1
132 if (set_prev + 1 < set_next)
133 for (i = loc; i < n; i++)
134 sk_X509_NAME_ENTRY_value(sk, i)->set--;
138 int X509_NAME_add_entry_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj, int type,
139 const unsigned char *bytes, int len, int loc,
145 ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len);
148 ret = X509_NAME_add_entry(name, ne, loc, set);
149 X509_NAME_ENTRY_free(ne);
153 int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
154 const unsigned char *bytes, int len, int loc,
159 ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len);
162 ret = X509_NAME_add_entry(name, ne, loc, set);
163 X509_NAME_ENTRY_free(ne);
167 int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type,
168 const unsigned char *bytes, int len, int loc,
173 ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len);
176 ret = X509_NAME_add_entry(name, ne, loc, set);
177 X509_NAME_ENTRY_free(ne);
182 * if set is -1, append to previous set, 0 'a new one', and 1, prepend to the
183 * guy we are about to stomp on.
185 int X509_NAME_add_entry(X509_NAME *name, const X509_NAME_ENTRY *ne, int loc,
188 X509_NAME_ENTRY *new_name = NULL;
190 STACK_OF(X509_NAME_ENTRY) *sk;
195 n = sk_X509_NAME_ENTRY_num(sk);
208 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set;
210 } else { /* if (set >= 0) */
214 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set + 1;
218 set = sk_X509_NAME_ENTRY_value(sk, loc)->set;
221 if ((new_name = X509_NAME_ENTRY_dup(ne)) == NULL)
224 if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) {
225 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
229 n = sk_X509_NAME_ENTRY_num(sk);
230 for (i = loc + 1; i < n; i++)
231 sk_X509_NAME_ENTRY_value(sk, i)->set += 1;
235 X509_NAME_ENTRY_free(new_name);
239 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne,
240 const char *field, int type,
241 const unsigned char *bytes,
245 X509_NAME_ENTRY *nentry;
247 obj = OBJ_txt2obj(field, 0);
249 ERR_raise_data(ERR_LIB_X509, X509_R_INVALID_FIELD_NAME,
253 nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
254 ASN1_OBJECT_free(obj);
258 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,
260 const unsigned char *bytes,
264 X509_NAME_ENTRY *nentry;
266 obj = OBJ_nid2obj(nid);
268 ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_NID);
271 nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
272 ASN1_OBJECT_free(obj);
276 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne,
277 const ASN1_OBJECT *obj, int type,
278 const unsigned char *bytes,
281 X509_NAME_ENTRY *ret;
283 if ((ne == NULL) || (*ne == NULL)) {
284 if ((ret = X509_NAME_ENTRY_new()) == NULL)
289 if (!X509_NAME_ENTRY_set_object(ret, obj))
291 if (!X509_NAME_ENTRY_set_data(ret, type, bytes, len))
294 if ((ne != NULL) && (*ne == NULL))
298 if ((ne == NULL) || (ret != *ne))
299 X509_NAME_ENTRY_free(ret);
303 int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, const ASN1_OBJECT *obj)
305 if ((ne == NULL) || (obj == NULL)) {
306 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
309 ASN1_OBJECT_free(ne->object);
310 ne->object = OBJ_dup(obj);
311 return ((ne->object == NULL) ? 0 : 1);
314 int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
315 const unsigned char *bytes, int len)
319 if ((ne == NULL) || ((bytes == NULL) && (len != 0)))
321 if ((type > 0) && (type & MBSTRING_FLAG))
322 return ASN1_STRING_set_by_NID(&ne->value, bytes,
324 OBJ_obj2nid(ne->object)) ? 1 : 0;
326 len = strlen((const char *)bytes);
327 i = ASN1_STRING_set(ne->value, bytes, len);
330 if (type != V_ASN1_UNDEF) {
331 if (type == V_ASN1_APP_CHOOSE)
332 ne->value->type = ASN1_PRINTABLE_type(bytes, len);
334 ne->value->type = type;
339 ASN1_OBJECT *X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne)
346 ASN1_STRING *X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne)
353 int X509_NAME_ENTRY_set(const X509_NAME_ENTRY *ne)