Coverage Report

Created: 2025-06-13 06:56

/src/openssl/crypto/x509/x509name.c
Line
Count
Source (jump to first uncovered line)
1
/*
2
 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
3
 *
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
8
 */
9
10
#include <stdio.h>
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"
18
19
int X509_NAME_get_text_by_NID(const X509_NAME *name, int nid,
20
                              char *buf, int len)
21
0
{
22
0
    ASN1_OBJECT *obj;
23
24
0
    obj = OBJ_nid2obj(nid);
25
0
    if (obj == NULL)
26
0
        return -1;
27
0
    return X509_NAME_get_text_by_OBJ(name, obj, buf, len);
28
0
}
29
30
int X509_NAME_get_text_by_OBJ(const X509_NAME *name, const ASN1_OBJECT *obj,
31
                              char *buf, int len)
32
0
{
33
0
    int i;
34
0
    const ASN1_STRING *data;
35
36
0
    i = X509_NAME_get_index_by_OBJ(name, obj, -1);
37
0
    if (i < 0)
38
0
        return -1;
39
0
    data = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, i));
40
0
    if (buf == NULL)
41
0
        return data->length;
42
0
    if (len <= 0)
43
0
        return 0;
44
0
    i = (data->length > (len - 1)) ? (len - 1) : data->length;
45
0
    memcpy(buf, data->data, i);
46
0
    buf[i] = '\0';
47
0
    return i;
48
0
}
49
50
int X509_NAME_entry_count(const X509_NAME *name)
51
0
{
52
0
    int ret;
53
54
0
    if (name == NULL)
55
0
        return 0;
56
0
    ret = sk_X509_NAME_ENTRY_num(name->entries);
57
0
    return ret > 0 ? ret : 0;
58
0
}
59
60
int X509_NAME_get_index_by_NID(const X509_NAME *name, int nid, int lastpos)
61
0
{
62
0
    ASN1_OBJECT *obj;
63
64
0
    obj = OBJ_nid2obj(nid);
65
0
    if (obj == NULL)
66
0
        return -2;
67
0
    return X509_NAME_get_index_by_OBJ(name, obj, lastpos);
68
0
}
69
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,
72
                               int lastpos)
73
0
{
74
0
    int n;
75
0
    X509_NAME_ENTRY *ne;
76
0
    STACK_OF(X509_NAME_ENTRY) *sk;
77
78
0
    if (name == NULL)
79
0
        return -1;
80
0
    if (lastpos < 0)
81
0
        lastpos = -1;
82
0
    sk = name->entries;
83
0
    n = sk_X509_NAME_ENTRY_num(sk);
84
0
    for (lastpos++; lastpos < n; lastpos++) {
85
0
        ne = sk_X509_NAME_ENTRY_value(sk, lastpos);
86
0
        if (OBJ_cmp(ne->object, obj) == 0)
87
0
            return lastpos;
88
0
    }
89
0
    return -1;
90
0
}
91
92
X509_NAME_ENTRY *X509_NAME_get_entry(const X509_NAME *name, int loc)
93
0
{
94
0
    if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
95
0
        || loc < 0)
96
0
        return NULL;
97
98
0
    return sk_X509_NAME_ENTRY_value(name->entries, loc);
99
0
}
100
101
X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc)
102
0
{
103
0
    X509_NAME_ENTRY *ret;
104
0
    int i, n, set_prev, set_next;
105
0
    STACK_OF(X509_NAME_ENTRY) *sk;
106
107
0
    if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
108
0
        || loc < 0)
109
0
        return NULL;
110
111
0
    sk = name->entries;
112
0
    ret = sk_X509_NAME_ENTRY_delete(sk, loc);
113
0
    n = sk_X509_NAME_ENTRY_num(sk);
114
0
    name->modified = 1;
115
0
    if (loc == n)
116
0
        return ret;
117
118
    /* else we need to fixup the set field */
119
0
    if (loc != 0)
120
0
        set_prev = (sk_X509_NAME_ENTRY_value(sk, loc - 1))->set;
121
0
    else
122
0
        set_prev = ret->set - 1;
123
0
    set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set;
124
125
    /*-
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
130
     * set   1      1       2       2
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
134
     */
135
0
    if (set_prev + 1 < set_next)
136
0
        for (i = loc; i < n; i++)
137
0
            sk_X509_NAME_ENTRY_value(sk, i)->set--;
138
0
    return ret;
139
0
}
140
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,
143
                               int set)
144
0
{
145
0
    X509_NAME_ENTRY *ne;
146
0
    int ret;
147
148
0
    ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len);
149
0
    if (!ne)
150
0
        return 0;
151
0
    ret = X509_NAME_add_entry(name, ne, loc, set);
152
0
    X509_NAME_ENTRY_free(ne);
153
0
    return ret;
154
0
}
155
156
int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
157
                               const unsigned char *bytes, int len, int loc,
158
                               int set)
159
0
{
160
0
    X509_NAME_ENTRY *ne;
161
0
    int ret;
162
0
    ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len);
163
0
    if (!ne)
164
0
        return 0;
165
0
    ret = X509_NAME_add_entry(name, ne, loc, set);
166
0
    X509_NAME_ENTRY_free(ne);
167
0
    return ret;
168
0
}
169
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,
172
                               int set)
173
0
{
174
0
    X509_NAME_ENTRY *ne;
175
0
    int ret;
176
0
    ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len);
177
0
    if (!ne)
178
0
        return 0;
179
0
    ret = X509_NAME_add_entry(name, ne, loc, set);
180
0
    X509_NAME_ENTRY_free(ne);
181
0
    return ret;
182
0
}
183
184
/*
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.
187
 */
188
int X509_NAME_add_entry(X509_NAME *name, const X509_NAME_ENTRY *ne, int loc,
189
                        int set)
190
0
{
191
0
    X509_NAME_ENTRY *new_name = NULL;
192
0
    int n, i, inc;
193
0
    STACK_OF(X509_NAME_ENTRY) *sk;
194
195
0
    if (name == NULL)
196
0
        return 0;
197
0
    sk = name->entries;
198
0
    n = sk_X509_NAME_ENTRY_num(sk);
199
0
    if (loc > n)
200
0
        loc = n;
201
0
    else if (loc < 0)
202
0
        loc = n;
203
0
    inc = (set == 0);
204
0
    name->modified = 1;
205
206
0
    if (set == -1) {
207
0
        if (loc == 0) {
208
0
            set = 0;
209
0
            inc = 1;
210
0
        } else {
211
0
            set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set;
212
0
        }
213
0
    } else {                    /* if (set >= 0) */
214
215
0
        if (loc >= n) {
216
0
            if (loc != 0)
217
0
                set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set + 1;
218
0
            else
219
0
                set = 0;
220
0
        } else
221
0
            set = sk_X509_NAME_ENTRY_value(sk, loc)->set;
222
0
    }
223
224
0
    if ((new_name = X509_NAME_ENTRY_dup(ne)) == NULL)
225
0
        goto err;
226
0
    new_name->set = set;
227
0
    if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) {
228
0
        ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
229
0
        goto err;
230
0
    }
231
0
    if (inc) {
232
0
        n = sk_X509_NAME_ENTRY_num(sk);
233
0
        for (i = loc + 1; i < n; i++)
234
0
            sk_X509_NAME_ENTRY_value(sk, i)->set += 1;
235
0
    }
236
0
    return 1;
237
0
 err:
238
0
    X509_NAME_ENTRY_free(new_name);
239
0
    return 0;
240
0
}
241
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,
245
                                               int len)
246
0
{
247
0
    ASN1_OBJECT *obj;
248
0
    X509_NAME_ENTRY *nentry;
249
250
0
    obj = OBJ_txt2obj(field, 0);
251
0
    if (obj == NULL) {
252
0
        ERR_raise_data(ERR_LIB_X509, X509_R_INVALID_FIELD_NAME,
253
0
                       "name=%s", field);
254
0
        return NULL;
255
0
    }
256
0
    nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
257
0
    ASN1_OBJECT_free(obj);
258
0
    return nentry;
259
0
}
260
261
X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,
262
                                               int type,
263
                                               const unsigned char *bytes,
264
                                               int len)
265
0
{
266
0
    ASN1_OBJECT *obj;
267
0
    X509_NAME_ENTRY *nentry;
268
269
0
    obj = OBJ_nid2obj(nid);
270
0
    if (obj == NULL) {
271
0
        ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_NID);
272
0
        return NULL;
273
0
    }
274
0
    nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len);
275
0
    ASN1_OBJECT_free(obj);
276
0
    return nentry;
277
0
}
278
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,
282
                                               int len)
283
0
{
284
0
    X509_NAME_ENTRY *ret;
285
286
0
    if ((ne == NULL) || (*ne == NULL)) {
287
0
        if ((ret = X509_NAME_ENTRY_new()) == NULL)
288
0
            return NULL;
289
0
    } else
290
0
        ret = *ne;
291
292
0
    if (!X509_NAME_ENTRY_set_object(ret, obj))
293
0
        goto err;
294
0
    if (!X509_NAME_ENTRY_set_data(ret, type, bytes, len))
295
0
        goto err;
296
297
0
    if ((ne != NULL) && (*ne == NULL))
298
0
        *ne = ret;
299
0
    return ret;
300
0
 err:
301
0
    if ((ne == NULL) || (ret != *ne))
302
0
        X509_NAME_ENTRY_free(ret);
303
0
    return NULL;
304
0
}
305
306
int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, const ASN1_OBJECT *obj)
307
0
{
308
0
    if ((ne == NULL) || (obj == NULL)) {
309
0
        ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
310
0
        return 0;
311
0
    }
312
0
    ASN1_OBJECT_free(ne->object);
313
0
    ne->object = OBJ_dup(obj);
314
0
    return ((ne->object == NULL) ? 0 : 1);
315
0
}
316
317
int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
318
                             const unsigned char *bytes, int len)
319
0
{
320
0
    int i;
321
322
0
    if ((ne == NULL) || ((bytes == NULL) && (len != 0)))
323
0
        return 0;
324
0
    if ((type > 0) && (type & MBSTRING_FLAG))
325
0
        return ASN1_STRING_set_by_NID(&ne->value, bytes,
326
0
                                      len, type,
327
0
                                      OBJ_obj2nid(ne->object)) ? 1 : 0;
328
0
    if (len < 0)
329
0
        len = strlen((const char *)bytes);
330
0
    i = ASN1_STRING_set(ne->value, bytes, len);
331
0
    if (!i)
332
0
        return 0;
333
0
    if (type != V_ASN1_UNDEF) {
334
0
        if (type == V_ASN1_APP_CHOOSE)
335
0
            ne->value->type = ASN1_PRINTABLE_type(bytes, len);
336
0
        else
337
0
            ne->value->type = type;
338
0
    }
339
0
    return 1;
340
0
}
341
342
ASN1_OBJECT *X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne)
343
0
{
344
0
    if (ne == NULL)
345
0
        return NULL;
346
0
    return ne->object;
347
0
}
348
349
ASN1_STRING *X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne)
350
0
{
351
0
    if (ne == NULL)
352
0
        return NULL;
353
0
    return ne->value;
354
0
}
355
356
int X509_NAME_ENTRY_set(const X509_NAME_ENTRY *ne)
357
0
{
358
0
    return ne->set;
359
0
}