Coverage Report

Created: 2024-08-27 12:20

/src/openssl/crypto/x509/x509name.c
Line
Count
Source (jump to first uncovered line)
1
/*
2
 * Copyright 1995-2018 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(X509_NAME *name, int nid, char *buf, int len)
20
0
{
21
0
    ASN1_OBJECT *obj;
22
23
0
    obj = OBJ_nid2obj(nid);
24
0
    if (obj == NULL)
25
0
        return -1;
26
0
    return X509_NAME_get_text_by_OBJ(name, obj, buf, len);
27
0
}
28
29
int X509_NAME_get_text_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj,
30
                              char *buf, int len)
31
0
{
32
0
    int i;
33
0
    const ASN1_STRING *data;
34
35
0
    i = X509_NAME_get_index_by_OBJ(name, obj, -1);
36
0
    if (i < 0)
37
0
        return -1;
38
0
    data = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, i));
39
0
    if (buf == NULL)
40
0
        return data->length;
41
0
    if (len <= 0)
42
0
        return 0;
43
0
    i = (data->length > (len - 1)) ? (len - 1) : data->length;
44
0
    memcpy(buf, data->data, i);
45
0
    buf[i] = '\0';
46
0
    return i;
47
0
}
48
49
int X509_NAME_entry_count(const X509_NAME *name)
50
19.1k
{
51
19.1k
    if (name == NULL)
52
0
        return 0;
53
19.1k
    return sk_X509_NAME_ENTRY_num(name->entries);
54
19.1k
}
55
56
int X509_NAME_get_index_by_NID(X509_NAME *name, int nid, int lastpos)
57
0
{
58
0
    ASN1_OBJECT *obj;
59
60
0
    obj = OBJ_nid2obj(nid);
61
0
    if (obj == NULL)
62
0
        return -2;
63
0
    return X509_NAME_get_index_by_OBJ(name, obj, lastpos);
64
0
}
65
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)
68
0
{
69
0
    int n;
70
0
    X509_NAME_ENTRY *ne;
71
0
    STACK_OF(X509_NAME_ENTRY) *sk;
72
73
0
    if (name == NULL)
74
0
        return -1;
75
0
    if (lastpos < 0)
76
0
        lastpos = -1;
77
0
    sk = name->entries;
78
0
    n = sk_X509_NAME_ENTRY_num(sk);
79
0
    for (lastpos++; lastpos < n; lastpos++) {
80
0
        ne = sk_X509_NAME_ENTRY_value(sk, lastpos);
81
0
        if (OBJ_cmp(ne->object, obj) == 0)
82
0
            return lastpos;
83
0
    }
84
0
    return -1;
85
0
}
86
87
X509_NAME_ENTRY *X509_NAME_get_entry(const X509_NAME *name, int loc)
88
3.12k
{
89
3.12k
    if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
90
3.12k
        || loc < 0)
91
0
        return NULL;
92
93
3.12k
    return sk_X509_NAME_ENTRY_value(name->entries, loc);
94
3.12k
}
95
96
X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc)
97
0
{
98
0
    X509_NAME_ENTRY *ret;
99
0
    int i, n, set_prev, set_next;
100
0
    STACK_OF(X509_NAME_ENTRY) *sk;
101
102
0
    if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc
103
0
        || loc < 0)
104
0
        return NULL;
105
106
0
    sk = name->entries;
107
0
    ret = sk_X509_NAME_ENTRY_delete(sk, loc);
108
0
    n = sk_X509_NAME_ENTRY_num(sk);
109
0
    name->modified = 1;
110
0
    if (loc == n)
111
0
        return ret;
112
113
    /* else we need to fixup the set field */
114
0
    if (loc != 0)
115
0
        set_prev = (sk_X509_NAME_ENTRY_value(sk, loc - 1))->set;
116
0
    else
117
0
        set_prev = ret->set - 1;
118
0
    set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set;
119
120
    /*-
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
125
     * set   1      1       2       2
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
129
     */
130
0
    if (set_prev + 1 < set_next)
131
0
        for (i = loc; i < n; i++)
132
0
            sk_X509_NAME_ENTRY_value(sk, i)->set--;
133
0
    return ret;
134
0
}
135
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,
138
                               int set)
139
0
{
140
0
    X509_NAME_ENTRY *ne;
141
0
    int ret;
142
143
0
    ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len);
144
0
    if (!ne)
145
0
        return 0;
146
0
    ret = X509_NAME_add_entry(name, ne, loc, set);
147
0
    X509_NAME_ENTRY_free(ne);
148
0
    return ret;
149
0
}
150
151
int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type,
152
                               const unsigned char *bytes, int len, int loc,
153
                               int set)
154
0
{
155
0
    X509_NAME_ENTRY *ne;
156
0
    int ret;
157
0
    ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len);
158
0
    if (!ne)
159
0
        return 0;
160
0
    ret = X509_NAME_add_entry(name, ne, loc, set);
161
0
    X509_NAME_ENTRY_free(ne);
162
0
    return ret;
163
0
}
164
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,
167
                               int set)
168
0
{
169
0
    X509_NAME_ENTRY *ne;
170
0
    int ret;
171
0
    ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len);
172
0
    if (!ne)
173
0
        return 0;
174
0
    ret = X509_NAME_add_entry(name, ne, loc, set);
175
0
    X509_NAME_ENTRY_free(ne);
176
0
    return ret;
177
0
}
178
179
/*
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.
182
 */
183
int X509_NAME_add_entry(X509_NAME *name, const X509_NAME_ENTRY *ne, int loc,
184
                        int set)
185
0
{
186
0
    X509_NAME_ENTRY *new_name = NULL;
187
0
    int n, i, inc;
188
0
    STACK_OF(X509_NAME_ENTRY) *sk;
189
190
0
    if (name == NULL)
191
0
        return 0;
192
0
    sk = name->entries;
193
0
    n = sk_X509_NAME_ENTRY_num(sk);
194
0
    if (loc > n)
195
0
        loc = n;
196
0
    else if (loc < 0)
197
0
        loc = n;
198
0
    inc = (set == 0);
199
0
    name->modified = 1;
200
201
0
    if (set == -1) {
202
0
        if (loc == 0) {
203
0
            set = 0;
204
0
            inc = 1;
205
0
        } else {
206
0
            set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set;
207
0
        }
208
0
    } else {                    /* if (set >= 0) */
209
210
0
        if (loc >= n) {
211
0
            if (loc != 0)
212
0
                set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set + 1;
213
0
            else
214
0
                set = 0;
215
0
        } else
216
0
            set = sk_X509_NAME_ENTRY_value(sk, loc)->set;
217
0
    }
218
219
    /*
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.
222
     */
223
0
    if ((new_name = X509_NAME_ENTRY_dup((X509_NAME_ENTRY *)ne)) == NULL)
224
0
        goto err;
225
0
    new_name->set = set;
226
0
    if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) {
227
0
        X509err(X509_F_X509_NAME_ADD_ENTRY, ERR_R_MALLOC_FAILURE);
228
0
        goto err;
229
0
    }
230
0
    if (inc) {
231
0
        n = sk_X509_NAME_ENTRY_num(sk);
232
0
        for (i = loc + 1; i < n; i++)
233
0
            sk_X509_NAME_ENTRY_value(sk, i)->set += 1;
234
0
    }
235
0
    return 1;
236
0
 err:
237
0
    X509_NAME_ENTRY_free(new_name);
238
0
    return 0;
239
0
}
240
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,
244
                                               int len)
245
0
{
246
0
    ASN1_OBJECT *obj;
247
0
    X509_NAME_ENTRY *nentry;
248
249
0
    obj = OBJ_txt2obj(field, 0);
250
0
    if (obj == NULL) {
251
0
        X509err(X509_F_X509_NAME_ENTRY_CREATE_BY_TXT,
252
0
                X509_R_INVALID_FIELD_NAME);
253
0
        ERR_add_error_data(2, "name=", 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
        X509err(X509_F_X509_NAME_ENTRY_CREATE_BY_NID, 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
        X509err(X509_F_X509_NAME_ENTRY_SET_OBJECT,
310
0
                ERR_R_PASSED_NULL_PARAMETER);
311
0
        return 0;
312
0
    }
313
0
    ASN1_OBJECT_free(ne->object);
314
0
    ne->object = OBJ_dup(obj);
315
0
    return ((ne->object == NULL) ? 0 : 1);
316
0
}
317
318
int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
319
                             const unsigned char *bytes, int len)
320
0
{
321
0
    int i;
322
323
0
    if ((ne == NULL) || ((bytes == NULL) && (len != 0)))
324
0
        return 0;
325
0
    if ((type > 0) && (type & MBSTRING_FLAG))
326
0
        return ASN1_STRING_set_by_NID(&ne->value, bytes,
327
0
                                      len, type,
328
0
                                      OBJ_obj2nid(ne->object)) ? 1 : 0;
329
0
    if (len < 0)
330
0
        len = strlen((const char *)bytes);
331
0
    i = ASN1_STRING_set(ne->value, bytes, len);
332
0
    if (!i)
333
0
        return 0;
334
0
    if (type != V_ASN1_UNDEF) {
335
0
        if (type == V_ASN1_APP_CHOOSE)
336
0
            ne->value->type = ASN1_PRINTABLE_type(bytes, len);
337
0
        else
338
0
            ne->value->type = type;
339
0
    }
340
0
    return 1;
341
0
}
342
343
ASN1_OBJECT *X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne)
344
3.12k
{
345
3.12k
    if (ne == NULL)
346
0
        return NULL;
347
3.12k
    return ne->object;
348
3.12k
}
349
350
ASN1_STRING *X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne)
351
3.12k
{
352
3.12k
    if (ne == NULL)
353
0
        return NULL;
354
3.12k
    return ne->value;
355
3.12k
}
356
357
int X509_NAME_ENTRY_set(const X509_NAME_ENTRY *ne)
358
5.27k
{
359
5.27k
    return ne->set;
360
5.27k
}