/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ #include #include /* For bsearch */ #include #include #include #include static STACK_OF(ASN1_STRING_TABLE) *stable = NULL; static void st_free(ASN1_STRING_TABLE *tbl); /* This is the global mask for the mbstring functions: this is use to * mask out certain types (such as BMPString and UTF8String) because * certain software (e.g. Netscape) has problems with them. */ static unsigned long global_mask = B_ASN1_UTF8STRING; void ASN1_STRING_set_default_mask(unsigned long mask) { global_mask = mask; } unsigned long ASN1_STRING_get_default_mask(void) { return global_mask; } /* This function sets the default to various "flavours" of configuration. * based on an ASCII string. Currently this is: * MASK:XXXX : a numerical mask value. * nobmp : Don't use BMPStrings (just Printable, T61). * pkix : PKIX recommendation in RFC2459. * utf8only : only use UTF8Strings (RFC2459 recommendation for 2004). * default: the default value, Printable, T61, BMP. */ int ASN1_STRING_set_default_mask_asc(const char *p) { unsigned long mask; char *end; if(!strncmp(p, "MASK:", 5)) { if(!p[5]) return 0; mask = strtoul(p + 5, &end, 0); if(*end) return 0; } else if(!strcmp(p, "nombstr")) mask = ~((unsigned long)(B_ASN1_BMPSTRING|B_ASN1_UTF8STRING)); else if(!strcmp(p, "pkix")) mask = ~((unsigned long)B_ASN1_T61STRING); else if(!strcmp(p, "utf8only")) mask = B_ASN1_UTF8STRING; else if(!strcmp(p, "default")) mask = 0xFFFFFFFFL; else return 0; ASN1_STRING_set_default_mask(mask); return 1; } /* The following function generates an ASN1_STRING based on limits in a table. * Frequently the types and length of an ASN1_STRING are restricted by a * corresponding OID. For example certificates and certificate requests. */ ASN1_STRING *ASN1_STRING_set_by_NID(ASN1_STRING **out, const unsigned char *in, int inlen, int inform, int nid) { ASN1_STRING_TABLE *tbl; ASN1_STRING *str = NULL; unsigned long mask; int ret; if(!out) out = &str; tbl = ASN1_STRING_TABLE_get(nid); if(tbl) { mask = tbl->mask; if(!(tbl->flags & STABLE_NO_MASK)) mask &= global_mask; ret = ASN1_mbstring_ncopy(out, in, inlen, inform, mask, tbl->minsize, tbl->maxsize); } else ret = ASN1_mbstring_copy(out, in, inlen, inform, DIRSTRING_TYPE & global_mask); if(ret <= 0) return NULL; return *out; } /* Now the tables and helper functions for the string table: */ /* size limits: this stuff is taken straight from RFC3280 */ #define ub_name 32768 #define ub_common_name 64 #define ub_locality_name 128 #define ub_state_name 128 #define ub_organization_name 64 #define ub_organization_unit_name 64 #define ub_title 64 #define ub_email_address 128 #define ub_serial_number 64 /* This table must be kept in NID order */ static const ASN1_STRING_TABLE tbl_standard[] = { {NID_commonName, 1, ub_common_name, DIRSTRING_TYPE, 0}, {NID_countryName, 2, 2, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK}, {NID_localityName, 1, ub_locality_name, DIRSTRING_TYPE, 0}, {NID_stateOrProvinceName, 1, ub_state_name, DIRSTRING_TYPE, 0}, {NID_organizationName, 1, ub_organization_name, DIRSTRING_TYPE, 0}, {NID_organizationalUnitName, 1, ub_organization_unit_name, DIRSTRING_TYPE, 0}, {NID_pkcs9_emailAddress, 1, ub_email_address, B_ASN1_IA5STRING, STABLE_NO_MASK}, {NID_pkcs9_unstructuredName, 1, -1, PKCS9STRING_TYPE, 0}, {NID_pkcs9_challengePassword, 1, -1, PKCS9STRING_TYPE, 0}, {NID_pkcs9_unstructuredAddress, 1, -1, DIRSTRING_TYPE, 0}, {NID_givenName, 1, ub_name, DIRSTRING_TYPE, 0}, {NID_surname, 1, ub_name, DIRSTRING_TYPE, 0}, {NID_initials, 1, ub_name, DIRSTRING_TYPE, 0}, {NID_serialNumber, 1, ub_serial_number, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK}, {NID_friendlyName, -1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK}, {NID_name, 1, ub_name, DIRSTRING_TYPE, 0}, {NID_dnQualifier, -1, -1, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK}, {NID_domainComponent, 1, -1, B_ASN1_IA5STRING, STABLE_NO_MASK}, {NID_ms_csp_name, -1, -1, B_ASN1_BMPSTRING, STABLE_NO_MASK} }; static int sk_table_cmp(const ASN1_STRING_TABLE **a, const ASN1_STRING_TABLE **b) { return (*a)->nid - (*b)->nid; } static int table_cmp(const void *in_a, const void *in_b) { const ASN1_STRING_TABLE *a = in_a; const ASN1_STRING_TABLE *b = in_b; return a->nid - b->nid; } ASN1_STRING_TABLE *ASN1_STRING_TABLE_get(int nid) { int found; size_t idx; ASN1_STRING_TABLE *ttmp; ASN1_STRING_TABLE fnd; fnd.nid = nid; ttmp = bsearch(&fnd, tbl_standard, sizeof(tbl_standard)/sizeof(ASN1_STRING_TABLE), sizeof(ASN1_STRING_TABLE), table_cmp); if(ttmp) return ttmp; if(!stable) return NULL; found = sk_ASN1_STRING_TABLE_find(stable, &idx, &fnd); if (!found) return NULL; return sk_ASN1_STRING_TABLE_value(stable, idx); } int ASN1_STRING_TABLE_add(int nid, long minsize, long maxsize, unsigned long mask, unsigned long flags) { ASN1_STRING_TABLE *tmp; char new_nid = 0; flags &= ~STABLE_FLAGS_MALLOC; if(!stable) stable = sk_ASN1_STRING_TABLE_new(sk_table_cmp); if(!stable) { OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE); return 0; } if(!(tmp = ASN1_STRING_TABLE_get(nid))) { tmp = OPENSSL_malloc(sizeof(ASN1_STRING_TABLE)); if(!tmp) { OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE); return 0; } tmp->flags = flags | STABLE_FLAGS_MALLOC; tmp->nid = nid; new_nid = 1; } else tmp->flags = (tmp->flags & STABLE_FLAGS_MALLOC) | flags; if(minsize != -1) tmp->minsize = minsize; if(maxsize != -1) tmp->maxsize = maxsize; tmp->mask = mask; if(new_nid) sk_ASN1_STRING_TABLE_push(stable, tmp); return 1; } void ASN1_STRING_TABLE_cleanup(void) { STACK_OF(ASN1_STRING_TABLE) *tmp; tmp = stable; if(!tmp) return; stable = NULL; sk_ASN1_STRING_TABLE_pop_free(tmp, st_free); } static void st_free(ASN1_STRING_TABLE *tbl) { if(tbl->flags & STABLE_FLAGS_MALLOC) OPENSSL_free(tbl); } #ifdef STRING_TABLE_TEST int main(void) { ASN1_STRING_TABLE *tmp; int i, last_nid = -1; for (tmp = tbl_standard, i = 0; i < sizeof(tbl_standard)/sizeof(ASN1_STRING_TABLE); i++, tmp++) { if (tmp->nid < last_nid) { last_nid = 0; break; } last_nid = tmp->nid; } if (last_nid != 0) { printf("Table order OK\n"); exit(0); } for (tmp = tbl_standard, i = 0; i < sizeof(tbl_standard)/sizeof(ASN1_STRING_TABLE); i++, tmp++) printf("Index %d, NID %d, Name=%s\n", i, tmp->nid, OBJ_nid2ln(tmp->nid)); return 0; } #endif