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)
56 ret = sk_X509_NAME_ENTRY_num(name->entries);
57 return ret > 0 ? ret : 0;
60 int X509_NAME_get_index_by_NID(const X509_NAME *name, int nid, int lastpos)
64 obj = OBJ_nid2obj(nid);
67 return X509_NAME_get_index_by_OBJ(name, obj, lastpos);
70 /* NOTE: you should be passing -1, not 0 as lastpos */
71 int X509_NAME_get_index_by_OBJ(const X509_NAME *name, const ASN1_OBJECT *obj,
76 STACK_OF(X509_NAME_ENTRY) *sk;
83 n = sk_X509_NAME_ENTRY_num(sk);
84 for (lastpos++; lastpos < n; lastpos++) {
85 ne = sk_X509_NAME_ENTRY_value(sk, lastpos);
86 if (OBJ_cmp(ne->object, obj) == 0)
92 X509_NAME_ENTRY *X509_NAME_get_entry(const X509_NAME *name, int loc)
94 if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
98 return sk_X509_NAME_ENTRY_value(name->entries, loc);
101 X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc)
103 X509_NAME_ENTRY *ret;
104 int i, n, set_prev, set_next;
105 STACK_OF(X509_NAME_ENTRY) *sk;
107 if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
112 ret = sk_X509_NAME_ENTRY_delete(sk, loc);
113 n = sk_X509_NAME_ENTRY_num(sk);
118 /* else we need to fixup the set field */
120 set_prev = (sk_X509_NAME_ENTRY_value(sk, loc - 1))->set;
122 set_prev = ret->set - 1;
123 set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set;
126 * set_prev is the previous set
127 * set is the current set
128 * set_next is the following
129 * prev 1 1 1 1 1 1 1 1
131 * next 1 1 2 2 2 2 3 2
132 * so basically only if prev and next differ by 2, then
133 * re-number down by 1
135 if (set_prev + 1 < set_next)
136 for (i = loc; i < n; i++)
137 sk_X509_NAME_ENTRY_value(sk, i)->set--;
141 int X509_NAME_add_entry_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj, int type,
142 const unsigned char *bytes, int len, int loc,
148 ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len);
151 ret = X509_NAME_add_entry(name, ne, loc, set);
152 X509_NAME_ENTRY_free(ne);
156 int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
157 const unsigned char *bytes, int len, int loc,
162 ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len);
165 ret = X509_NAME_add_entry(name, ne, loc, set);
166 X509_NAME_ENTRY_free(ne);
170 int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type,
171 const unsigned char *bytes, int len, int loc,
176 ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len);
179 ret = X509_NAME_add_entry(name, ne, loc, set);
180 X509_NAME_ENTRY_free(ne);
185 * if set is -1, append to previous set, 0 'a new one', and 1, prepend to the
186 * guy we are about to stomp on.
188 int X509_NAME_add_entry(X509_NAME *name, const X509_NAME_ENTRY *ne, int loc,
191 X509_NAME_ENTRY *new_name = NULL;
193 STACK_OF(X509_NAME_ENTRY) *sk;
198 n = sk_X509_NAME_ENTRY_num(sk);
211 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set;
213 } else { /* if (set >= 0) */
217 set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set + 1;
221 set = sk_X509_NAME_ENTRY_value(sk, loc)->set;
224 if ((new_name = X509_NAME_ENTRY_dup(ne)) == NULL)
227 if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) {
228 ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
232 n = sk_X509_NAME_ENTRY_num(sk);
233 for (i = loc + 1; i < n; i++)
234 sk_X509_NAME_ENTRY_value(sk, i)->set += 1;
238 X509_NAME_ENTRY_free(new_name);
242 X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne,
243 const char *field, int type,
244 const unsigned char *bytes,
248 X509_NAME_ENTRY *nentry;
250 obj = OBJ_txt2obj(field, 0);
252 ERR_raise_data(ERR_LIB_X509, X509_R_INVALID_FIELD_NAME,
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 ERR_raise(ERR_LIB_X509, 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 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
312 ASN1_OBJECT_free(ne->object);
313 ne->object = OBJ_dup(obj);
314 return ((ne->object == NULL) ? 0 : 1);
317 int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
318 const unsigned char *bytes, int len)
322 if ((ne == NULL) || ((bytes == NULL) && (len != 0)))
324 if ((type > 0) && (type & MBSTRING_FLAG))
325 return ASN1_STRING_set_by_NID(&ne->value, bytes,
327 OBJ_obj2nid(ne->object)) ? 1 : 0;
329 len = strlen((const char *)bytes);
330 i = ASN1_STRING_set(ne->value, bytes, len);
333 if (type != V_ASN1_UNDEF) {
334 if (type == V_ASN1_APP_CHOOSE)
335 ne->value->type = ASN1_PRINTABLE_type(bytes, len);
337 ne->value->type = type;
342 ASN1_OBJECT *X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne)
349 ASN1_STRING *X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne)
356 int X509_NAME_ENTRY_set(const X509_NAME_ENTRY *ne)