a_strnid.c revision 296465
1/* a_strnid.c */ 2/* 3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 4 * 1999. 5 */ 6/* ==================================================================== 7 * Copyright (c) 1999 The OpenSSL Project. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. All advertising materials mentioning features or use of this 22 * software must display the following acknowledgment: 23 * "This product includes software developed by the OpenSSL Project 24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25 * 26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27 * endorse or promote products derived from this software without 28 * prior written permission. For written permission, please contact 29 * licensing@OpenSSL.org. 30 * 31 * 5. Products derived from this software may not be called "OpenSSL" 32 * nor may "OpenSSL" appear in their names without prior written 33 * permission of the OpenSSL Project. 34 * 35 * 6. Redistributions of any form whatsoever must retain the following 36 * acknowledgment: 37 * "This product includes software developed by the OpenSSL Project 38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51 * OF THE POSSIBILITY OF SUCH DAMAGE. 52 * ==================================================================== 53 * 54 * This product includes cryptographic software written by Eric Young 55 * (eay@cryptsoft.com). This product includes software written by Tim 56 * Hudson (tjh@cryptsoft.com). 57 * 58 */ 59 60#include <stdio.h> 61#include <ctype.h> 62#include "cryptlib.h" 63#include <openssl/asn1.h> 64#include <openssl/objects.h> 65 66static STACK_OF(ASN1_STRING_TABLE) *stable = NULL; 67static void st_free(ASN1_STRING_TABLE *tbl); 68static int sk_table_cmp(const ASN1_STRING_TABLE *const *a, 69 const ASN1_STRING_TABLE *const *b); 70static int table_cmp(const void *a, const void *b); 71 72/* 73 * This is the global mask for the mbstring functions: this is use to mask 74 * out certain types (such as BMPString and UTF8String) because certain 75 * software (e.g. Netscape) has problems with them. 76 */ 77 78static unsigned long global_mask = B_ASN1_UTF8STRING; 79 80void ASN1_STRING_set_default_mask(unsigned long mask) 81{ 82 global_mask = mask; 83} 84 85unsigned long ASN1_STRING_get_default_mask(void) 86{ 87 return global_mask; 88} 89 90/*- 91 * This function sets the default to various "flavours" of configuration. 92 * based on an ASCII string. Currently this is: 93 * MASK:XXXX : a numerical mask value. 94 * nobmp : Don't use BMPStrings (just Printable, T61). 95 * pkix : PKIX recommendation in RFC2459. 96 * utf8only : only use UTF8Strings (RFC2459 recommendation for 2004). 97 * default: the default value, Printable, T61, BMP. 98 */ 99 100int ASN1_STRING_set_default_mask_asc(const char *p) 101{ 102 unsigned long mask; 103 char *end; 104 if (!strncmp(p, "MASK:", 5)) { 105 if (!p[5]) 106 return 0; 107 mask = strtoul(p + 5, &end, 0); 108 if (*end) 109 return 0; 110 } else if (!strcmp(p, "nombstr")) 111 mask = ~((unsigned long)(B_ASN1_BMPSTRING | B_ASN1_UTF8STRING)); 112 else if (!strcmp(p, "pkix")) 113 mask = ~((unsigned long)B_ASN1_T61STRING); 114 else if (!strcmp(p, "utf8only")) 115 mask = B_ASN1_UTF8STRING; 116 else if (!strcmp(p, "default")) 117 mask = 0xFFFFFFFFL; 118 else 119 return 0; 120 ASN1_STRING_set_default_mask(mask); 121 return 1; 122} 123 124/* 125 * The following function generates an ASN1_STRING based on limits in a 126 * table. Frequently the types and length of an ASN1_STRING are restricted by 127 * a corresponding OID. For example certificates and certificate requests. 128 */ 129 130ASN1_STRING *ASN1_STRING_set_by_NID(ASN1_STRING **out, 131 const unsigned char *in, int inlen, 132 int inform, int nid) 133{ 134 ASN1_STRING_TABLE *tbl; 135 ASN1_STRING *str = NULL; 136 unsigned long mask; 137 int ret; 138 if (!out) 139 out = &str; 140 tbl = ASN1_STRING_TABLE_get(nid); 141 if (tbl) { 142 mask = tbl->mask; 143 if (!(tbl->flags & STABLE_NO_MASK)) 144 mask &= global_mask; 145 ret = ASN1_mbstring_ncopy(out, in, inlen, inform, mask, 146 tbl->minsize, tbl->maxsize); 147 } else 148 ret = 149 ASN1_mbstring_copy(out, in, inlen, inform, 150 DIRSTRING_TYPE & global_mask); 151 if (ret <= 0) 152 return NULL; 153 return *out; 154} 155 156/* 157 * Now the tables and helper functions for the string table: 158 */ 159 160/* size limits: this stuff is taken straight from RFC3280 */ 161 162#define ub_name 32768 163#define ub_common_name 64 164#define ub_locality_name 128 165#define ub_state_name 128 166#define ub_organization_name 64 167#define ub_organization_unit_name 64 168#define ub_title 64 169#define ub_email_address 128 170#define ub_serial_number 64 171 172/* This table must be kept in NID order */ 173 174static ASN1_STRING_TABLE tbl_standard[] = { 175 {NID_commonName, 1, ub_common_name, DIRSTRING_TYPE, 0}, 176 {NID_countryName, 2, 2, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK}, 177 {NID_localityName, 1, ub_locality_name, DIRSTRING_TYPE, 0}, 178 {NID_stateOrProvinceName, 1, ub_state_name, DIRSTRING_TYPE, 0}, 179 {NID_organizationName, 1, ub_organization_name, DIRSTRING_TYPE, 0}, 180 {NID_organizationalUnitName, 1, ub_organization_unit_name, DIRSTRING_TYPE, 181 0}, 182 {NID_pkcs9_emailAddress, 1, ub_email_address, B_ASN1_IA5STRING, 183 STABLE_NO_MASK}, 184 {NID_pkcs9_unstructuredName, 1, -1, PKCS9STRING_TYPE, 0}, 185 {NID_pkcs9_challengePassword, 1, -1, PKCS9STRING_TYPE, 0}, 186 {NID_pkcs9_unstructuredAddress, 1, -1, DIRSTRING_TYPE, 0}, 187 {NID_givenName, 1, ub_name, DIRSTRING_TYPE, 0}, 188 {NID_surname, 1, ub_name, DIRSTRING_TYPE, 0}, 189 {NID_initials, 1, ub_name, DIRSTRING_TYPE, 0}, 190 {NID_serialNumber, 1, ub_serial_number, B_ASN1_PRINTABLESTRING, 191 STABLE_NO_MASK}, 192 {NID_friendlyName, -1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK}, 193 {NID_name, 1, ub_name, DIRSTRING_TYPE, 0}, 194 {NID_dnQualifier, -1, -1, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK}, 195 {NID_domainComponent, 1, -1, B_ASN1_IA5STRING, STABLE_NO_MASK}, 196 {NID_ms_csp_name, -1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK} 197}; 198 199static int sk_table_cmp(const ASN1_STRING_TABLE *const *a, 200 const ASN1_STRING_TABLE *const *b) 201{ 202 return (*a)->nid - (*b)->nid; 203} 204 205static int table_cmp(const void *a, const void *b) 206{ 207 const ASN1_STRING_TABLE *sa = a, *sb = b; 208 return sa->nid - sb->nid; 209} 210 211ASN1_STRING_TABLE *ASN1_STRING_TABLE_get(int nid) 212{ 213 int idx; 214 ASN1_STRING_TABLE *ttmp; 215 ASN1_STRING_TABLE fnd; 216 fnd.nid = nid; 217 ttmp = (ASN1_STRING_TABLE *)OBJ_bsearch((char *)&fnd, 218 (char *)tbl_standard, 219 sizeof(tbl_standard) / 220 sizeof(ASN1_STRING_TABLE), 221 sizeof(ASN1_STRING_TABLE), 222 table_cmp); 223 if (ttmp) 224 return ttmp; 225 if (!stable) 226 return NULL; 227 idx = sk_ASN1_STRING_TABLE_find(stable, &fnd); 228 if (idx < 0) 229 return NULL; 230 return sk_ASN1_STRING_TABLE_value(stable, idx); 231} 232 233int ASN1_STRING_TABLE_add(int nid, 234 long minsize, long maxsize, unsigned long mask, 235 unsigned long flags) 236{ 237 ASN1_STRING_TABLE *tmp; 238 char new_nid = 0; 239 flags &= ~STABLE_FLAGS_MALLOC; 240 if (!stable) 241 stable = sk_ASN1_STRING_TABLE_new(sk_table_cmp); 242 if (!stable) { 243 ASN1err(ASN1_F_ASN1_STRING_TABLE_ADD, ERR_R_MALLOC_FAILURE); 244 return 0; 245 } 246 if (!(tmp = ASN1_STRING_TABLE_get(nid))) { 247 tmp = OPENSSL_malloc(sizeof(ASN1_STRING_TABLE)); 248 if (!tmp) { 249 ASN1err(ASN1_F_ASN1_STRING_TABLE_ADD, ERR_R_MALLOC_FAILURE); 250 return 0; 251 } 252 tmp->flags = flags | STABLE_FLAGS_MALLOC; 253 tmp->nid = nid; 254 new_nid = 1; 255 } else 256 tmp->flags = (tmp->flags & STABLE_FLAGS_MALLOC) | flags; 257 if (minsize != -1) 258 tmp->minsize = minsize; 259 if (maxsize != -1) 260 tmp->maxsize = maxsize; 261 tmp->mask = mask; 262 if (new_nid) 263 sk_ASN1_STRING_TABLE_push(stable, tmp); 264 return 1; 265} 266 267void ASN1_STRING_TABLE_cleanup(void) 268{ 269 STACK_OF(ASN1_STRING_TABLE) *tmp; 270 tmp = stable; 271 if (!tmp) 272 return; 273 stable = NULL; 274 sk_ASN1_STRING_TABLE_pop_free(tmp, st_free); 275} 276 277static void st_free(ASN1_STRING_TABLE *tbl) 278{ 279 if (tbl->flags & STABLE_FLAGS_MALLOC) 280 OPENSSL_free(tbl); 281} 282 283 284IMPLEMENT_STACK_OF(ASN1_STRING_TABLE) 285 286#ifdef STRING_TABLE_TEST 287 288main() 289{ 290 ASN1_STRING_TABLE *tmp; 291 int i, last_nid = -1; 292 293 for (tmp = tbl_standard, i = 0; 294 i < sizeof(tbl_standard) / sizeof(ASN1_STRING_TABLE); i++, tmp++) { 295 if (tmp->nid < last_nid) { 296 last_nid = 0; 297 break; 298 } 299 last_nid = tmp->nid; 300 } 301 302 if (last_nid != 0) { 303 printf("Table order OK\n"); 304 exit(0); 305 } 306 307 for (tmp = tbl_standard, i = 0; 308 i < sizeof(tbl_standard) / sizeof(ASN1_STRING_TABLE); i++, tmp++) 309 printf("Index %d, NID %d, Name=%s\n", i, tmp->nid, 310 OBJ_nid2ln(tmp->nid)); 311 312} 313 314#endif 315