/* a_strnid.c */ /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL * project 1999. */ /* ==================================================================== * Copyright (c) 1999 The OpenSSL Project. All rights reserved. * * 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 above 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 acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * licensing@OpenSSL.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED 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 OpenSSL PROJECT OR * ITS 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. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ #include #include #include "cryptlib.h" #include #include static STACK_OF(ASN1_STRING_TABLE) *stable = NULL; static void st_free(ASN1_STRING_TABLE *tbl); static int sk_table_cmp(ASN1_STRING_TABLE **a, ASN1_STRING_TABLE **b); static int table_cmp(ASN1_STRING_TABLE *a, ASN1_STRING_TABLE *b); /* 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 = 0xFFFFFFFFL; 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(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 = ~(B_ASN1_BMPSTRING|B_ASN1_UTF8STRING); else if(!strcmp(p, "pkix")) mask = ~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, tbl->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 RFC2459 */ #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 /* This table must be kept in NID order */ static 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_name, 1, ub_name, DIRSTRING_TYPE, 0}, {NID_dnQualifier, -1, -1, B_ASN1_PRINTABLESTRING, STABLE_NO_MASK} }; static int sk_table_cmp(ASN1_STRING_TABLE **a, ASN1_STRING_TABLE **b) { return (*a)->nid - (*b)->nid; } static int table_cmp(ASN1_STRING_TABLE *a, ASN1_STRING_TABLE *b) { return a->nid - b->nid; } ASN1_STRING_TABLE *ASN1_STRING_TABLE_get(int nid) { int idx; ASN1_STRING_TABLE *ttmp; ASN1_STRING_TABLE fnd; fnd.nid = nid; ttmp = (ASN1_STRING_TABLE *) OBJ_bsearch((char *)&fnd, (char *)tbl_standard, sizeof(tbl_standard)/sizeof(ASN1_STRING_TABLE), sizeof(ASN1_STRING_TABLE), (int(*)())table_cmp); if(ttmp) return ttmp; if(!stable) return NULL; idx = sk_ASN1_STRING_TABLE_find(stable, &fnd); if(idx < 0) 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) { ASN1err(ASN1_F_ASN1_STRING_TABLE_ADD, ERR_R_MALLOC_FAILURE); return 0; } if(!(tmp = ASN1_STRING_TABLE_get(nid))) { tmp = Malloc(sizeof(ASN1_STRING_TABLE)); if(!tmp) { ASN1err(ASN1_F_ASN1_STRING_TABLE_ADD, 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) Free(tbl); } IMPLEMENT_STACK_OF(ASN1_STRING_TABLE)