Branch data Line data Source code
1 : : /* a_strnid.c */
2 : : /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 : : * project 1999.
4 : : */
5 : : /* ====================================================================
6 : : * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
7 : : *
8 : : * Redistribution and use in source and binary forms, with or without
9 : : * modification, are permitted provided that the following conditions
10 : : * are met:
11 : : *
12 : : * 1. Redistributions of source code must retain the above copyright
13 : : * notice, this list of conditions and the following disclaimer.
14 : : *
15 : : * 2. Redistributions in binary form must reproduce the above copyright
16 : : * notice, this list of conditions and the following disclaimer in
17 : : * the documentation and/or other materials provided with the
18 : : * distribution.
19 : : *
20 : : * 3. All advertising materials mentioning features or use of this
21 : : * software must display the following acknowledgment:
22 : : * "This product includes software developed by the OpenSSL Project
23 : : * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 : : *
25 : : * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 : : * endorse or promote products derived from this software without
27 : : * prior written permission. For written permission, please contact
28 : : * licensing@OpenSSL.org.
29 : : *
30 : : * 5. Products derived from this software may not be called "OpenSSL"
31 : : * nor may "OpenSSL" appear in their names without prior written
32 : : * permission of the OpenSSL Project.
33 : : *
34 : : * 6. Redistributions of any form whatsoever must retain the following
35 : : * acknowledgment:
36 : : * "This product includes software developed by the OpenSSL Project
37 : : * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 : : *
39 : : * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 : : * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 : : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 : : * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 : : * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 : : * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 : : * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 : : * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 : : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 : : * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 : : * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 : : * OF THE POSSIBILITY OF SUCH DAMAGE.
51 : : * ====================================================================
52 : : *
53 : : * This product includes cryptographic software written by Eric Young
54 : : * (eay@cryptsoft.com). This product includes software written by Tim
55 : : * Hudson (tjh@cryptsoft.com).
56 : : *
57 : : */
58 : :
59 : : #include <stdio.h>
60 : : #include <ctype.h>
61 : : #include "cryptlib.h"
62 : : #include <openssl/asn1.h>
63 : : #include <openssl/objects.h>
64 : :
65 : :
66 : : static STACK_OF(ASN1_STRING_TABLE) *stable = NULL;
67 : : static void st_free(ASN1_STRING_TABLE *tbl);
68 : : static int sk_table_cmp(const ASN1_STRING_TABLE * const *a,
69 : : const ASN1_STRING_TABLE * const *b);
70 : :
71 : :
72 : : /* This is the global mask for the mbstring functions: this is use to
73 : : * mask out certain types (such as BMPString and UTF8String) because
74 : : * certain software (e.g. Netscape) has problems with them.
75 : : */
76 : :
77 : : static unsigned long global_mask = B_ASN1_UTF8STRING;
78 : :
79 : 19 : void ASN1_STRING_set_default_mask(unsigned long mask)
80 : : {
81 : 19 : global_mask = mask;
82 : 19 : }
83 : :
84 : 0 : unsigned long ASN1_STRING_get_default_mask(void)
85 : : {
86 : 0 : return global_mask;
87 : : }
88 : :
89 : : /* This function sets the default to various "flavours" of configuration.
90 : : * based on an ASCII string. Currently this is:
91 : : * MASK:XXXX : a numerical mask value.
92 : : * nobmp : Don't use BMPStrings (just Printable, T61).
93 : : * pkix : PKIX recommendation in RFC2459.
94 : : * utf8only : only use UTF8Strings (RFC2459 recommendation for 2004).
95 : : * default: the default value, Printable, T61, BMP.
96 : : */
97 : :
98 : 19 : int ASN1_STRING_set_default_mask_asc(const char *p)
99 : : {
100 : : unsigned long mask;
101 : : char *end;
102 [ - + ]: 19 : if(!strncmp(p, "MASK:", 5)) {
103 [ # # ]: 0 : if(!p[5]) return 0;
104 : 0 : mask = strtoul(p + 5, &end, 0);
105 [ # # ]: 0 : if(*end) return 0;
106 [ + + ]: 19 : } else if(!strcmp(p, "nombstr"))
107 : : mask = ~((unsigned long)(B_ASN1_BMPSTRING|B_ASN1_UTF8STRING));
108 [ + - ]: 16 : else if(!strcmp(p, "pkix"))
109 : : mask = ~((unsigned long)B_ASN1_T61STRING);
110 [ - + ]: 16 : else if(!strcmp(p, "utf8only")) mask = B_ASN1_UTF8STRING;
111 [ # # ]: 0 : else if(!strcmp(p, "default"))
112 : : mask = 0xFFFFFFFFL;
113 : : else return 0;
114 : 19 : ASN1_STRING_set_default_mask(mask);
115 : 19 : return 1;
116 : : }
117 : :
118 : : /* The following function generates an ASN1_STRING based on limits in a table.
119 : : * Frequently the types and length of an ASN1_STRING are restricted by a
120 : : * corresponding OID. For example certificates and certificate requests.
121 : : */
122 : :
123 : 648 : ASN1_STRING *ASN1_STRING_set_by_NID(ASN1_STRING **out, const unsigned char *in,
124 : : int inlen, int inform, int nid)
125 : : {
126 : : ASN1_STRING_TABLE *tbl;
127 : 648 : ASN1_STRING *str = NULL;
128 : : unsigned long mask;
129 : : int ret;
130 [ - + ]: 648 : if(!out) out = &str;
131 : 648 : tbl = ASN1_STRING_TABLE_get(nid);
132 [ + - ]: 648 : if(tbl) {
133 : 648 : mask = tbl->mask;
134 [ + + ]: 648 : if(!(tbl->flags & STABLE_NO_MASK)) mask &= global_mask;
135 : 648 : ret = ASN1_mbstring_ncopy(out, in, inlen, inform, mask,
136 : : tbl->minsize, tbl->maxsize);
137 : 0 : } else ret = ASN1_mbstring_copy(out, in, inlen, inform, DIRSTRING_TYPE & global_mask);
138 [ + - ]: 648 : if(ret <= 0) return NULL;
139 : 648 : return *out;
140 : : }
141 : :
142 : : /* Now the tables and helper functions for the string table:
143 : : */
144 : :
145 : : /* size limits: this stuff is taken straight from RFC3280 */
146 : :
147 : : #define ub_name 32768
148 : : #define ub_common_name 64
149 : : #define ub_locality_name 128
150 : : #define ub_state_name 128
151 : : #define ub_organization_name 64
152 : : #define ub_organization_unit_name 64
153 : : #define ub_title 64
154 : : #define ub_email_address 128
155 : : #define ub_serial_number 64
156 : :
157 : :
158 : : /* This table must be kept in NID order */
159 : :
160 : : static const ASN1_STRING_TABLE tbl_standard[] = {
161 : : {NID_commonName, 1, ub_common_name, DIRSTRING_TYPE, 0},
162 : : {NID_countryName, 2, 2, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK},
163 : : {NID_localityName, 1, ub_locality_name, DIRSTRING_TYPE, 0},
164 : : {NID_stateOrProvinceName, 1, ub_state_name, DIRSTRING_TYPE, 0},
165 : : {NID_organizationName, 1, ub_organization_name, DIRSTRING_TYPE, 0},
166 : : {NID_organizationalUnitName, 1, ub_organization_unit_name, DIRSTRING_TYPE, 0},
167 : : {NID_pkcs9_emailAddress, 1, ub_email_address, B_ASN1_IA5STRING, STABLE_NO_MASK},
168 : : {NID_pkcs9_unstructuredName, 1, -1, PKCS9STRING_TYPE, 0},
169 : : {NID_pkcs9_challengePassword, 1, -1, PKCS9STRING_TYPE, 0},
170 : : {NID_pkcs9_unstructuredAddress, 1, -1, DIRSTRING_TYPE, 0},
171 : : {NID_givenName, 1, ub_name, DIRSTRING_TYPE, 0},
172 : : {NID_surname, 1, ub_name, DIRSTRING_TYPE, 0},
173 : : {NID_initials, 1, ub_name, DIRSTRING_TYPE, 0},
174 : : {NID_serialNumber, 1, ub_serial_number, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK},
175 : : {NID_friendlyName, -1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK},
176 : : {NID_name, 1, ub_name, DIRSTRING_TYPE, 0},
177 : : {NID_dnQualifier, -1, -1, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK},
178 : : {NID_domainComponent, 1, -1, B_ASN1_IA5STRING, STABLE_NO_MASK},
179 : : {NID_ms_csp_name, -1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK}
180 : : };
181 : :
182 : 0 : static int sk_table_cmp(const ASN1_STRING_TABLE * const *a,
183 : : const ASN1_STRING_TABLE * const *b)
184 : : {
185 : 0 : return (*a)->nid - (*b)->nid;
186 : : }
187 : :
188 : : DECLARE_OBJ_BSEARCH_CMP_FN(ASN1_STRING_TABLE, ASN1_STRING_TABLE, table);
189 : :
190 : 5772 : static int table_cmp(const ASN1_STRING_TABLE *a, const ASN1_STRING_TABLE *b)
191 : : {
192 : 2886 : return a->nid - b->nid;
193 : : }
194 : :
195 : 7068 : IMPLEMENT_OBJ_BSEARCH_CMP_FN(ASN1_STRING_TABLE, ASN1_STRING_TABLE, table);
196 : :
197 : 648 : ASN1_STRING_TABLE *ASN1_STRING_TABLE_get(int nid)
198 : : {
199 : : int idx;
200 : : ASN1_STRING_TABLE fnd;
201 : 648 : fnd.nid = nid;
202 [ - + ]: 648 : if (stable)
203 : : {
204 : 0 : idx = sk_ASN1_STRING_TABLE_find(stable, &fnd);
205 [ # # ]: 0 : if (idx >= 0)
206 : 0 : return sk_ASN1_STRING_TABLE_value(stable, idx);
207 : : }
208 : 648 : return OBJ_bsearch_table(&fnd, tbl_standard,
209 : : sizeof(tbl_standard)/sizeof(ASN1_STRING_TABLE));
210 : : }
211 : :
212 : : /* Return a string table pointer which can be modified: either directly
213 : : * from table or a copy of an internal value added to the table.
214 : : */
215 : :
216 : 0 : static ASN1_STRING_TABLE *stable_get(int nid)
217 : : {
218 : : ASN1_STRING_TABLE *tmp, *rv;
219 : : /* Always need a string table so allocate one if NULL */
220 [ # # ]: 0 : if(!stable)
221 : : {
222 : 0 : stable = sk_ASN1_STRING_TABLE_new(sk_table_cmp);
223 [ # # ]: 0 : if (!stable)
224 : : return NULL;
225 : : }
226 : 0 : tmp = ASN1_STRING_TABLE_get(nid);
227 [ # # ][ # # ]: 0 : if (tmp && tmp->flags & STABLE_FLAGS_MALLOC)
228 : : return tmp;
229 : 0 : rv = OPENSSL_malloc(sizeof(ASN1_STRING_TABLE));
230 [ # # ]: 0 : if (!rv)
231 : : return NULL;
232 [ # # ]: 0 : if (!sk_ASN1_STRING_TABLE_push(stable, rv))
233 : : {
234 : 0 : OPENSSL_free(rv);
235 : 0 : return NULL;
236 : : }
237 [ # # ]: 0 : if (tmp)
238 : : {
239 : 0 : rv->nid = tmp->nid;
240 : 0 : rv->minsize = tmp->minsize;
241 : 0 : rv->maxsize = tmp->maxsize;
242 : 0 : rv->mask = tmp->mask;
243 : 0 : rv->flags = tmp->flags | STABLE_FLAGS_MALLOC;
244 : : }
245 : : else
246 : : {
247 : 0 : rv->minsize = -1;
248 : 0 : rv->maxsize = -1;
249 : 0 : rv->mask = 0;
250 : 0 : rv->flags = STABLE_FLAGS_MALLOC;
251 : : }
252 : 0 : return rv;
253 : : }
254 : :
255 : 0 : int ASN1_STRING_TABLE_add(int nid,
256 : : long minsize, long maxsize, unsigned long mask,
257 : : unsigned long flags)
258 : : {
259 : : ASN1_STRING_TABLE *tmp;
260 : 0 : tmp = stable_get(nid);
261 [ # # ]: 0 : if (!tmp)
262 : : {
263 : 0 : ASN1err(ASN1_F_ASN1_STRING_TABLE_ADD, ERR_R_MALLOC_FAILURE);
264 : 0 : return 0;
265 : : }
266 [ # # ]: 0 : if (minsize >= 0)
267 : 0 : tmp->minsize = minsize;
268 [ # # ]: 0 : if (maxsize >= 0)
269 : 0 : tmp->maxsize = maxsize;
270 [ # # ]: 0 : if (mask)
271 : 0 : tmp->mask = mask;
272 [ # # ]: 0 : if (flags)
273 : 0 : tmp->flags = STABLE_FLAGS_MALLOC | flags;
274 : : return 1;
275 : : }
276 : :
277 : 0 : void ASN1_STRING_TABLE_cleanup(void)
278 : : {
279 : : STACK_OF(ASN1_STRING_TABLE) *tmp;
280 : 0 : tmp = stable;
281 [ # # ]: 0 : if(!tmp) return;
282 : 0 : stable = NULL;
283 : 0 : sk_ASN1_STRING_TABLE_pop_free(tmp, st_free);
284 : : }
285 : :
286 : 0 : static void st_free(ASN1_STRING_TABLE *tbl)
287 : : {
288 [ # # ]: 0 : if(tbl->flags & STABLE_FLAGS_MALLOC) OPENSSL_free(tbl);
289 : 0 : }
290 : :
291 : :
292 : : IMPLEMENT_STACK_OF(ASN1_STRING_TABLE)
293 : :
294 : : #ifdef STRING_TABLE_TEST
295 : :
296 : : main()
297 : : {
298 : : ASN1_STRING_TABLE *tmp;
299 : : int i, last_nid = -1;
300 : :
301 : : for (tmp = tbl_standard, i = 0;
302 : : i < sizeof(tbl_standard)/sizeof(ASN1_STRING_TABLE); i++, tmp++)
303 : : {
304 : : if (tmp->nid < last_nid)
305 : : {
306 : : last_nid = 0;
307 : : break;
308 : : }
309 : : last_nid = tmp->nid;
310 : : }
311 : :
312 : : if (last_nid != 0)
313 : : {
314 : : printf("Table order OK\n");
315 : : exit(0);
316 : : }
317 : :
318 : : for (tmp = tbl_standard, i = 0;
319 : : i < sizeof(tbl_standard)/sizeof(ASN1_STRING_TABLE); i++, tmp++)
320 : : printf("Index %d, NID %d, Name=%s\n", i, tmp->nid,
321 : : OBJ_nid2ln(tmp->nid));
322 : :
323 : : }
324 : :
325 : : #endif
|
