/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  | }  |