diff options
Diffstat (limited to 'src/crypto/asn1/a_strnid.c')
| -rw-r--r-- | src/crypto/asn1/a_strnid.c | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/src/crypto/asn1/a_strnid.c b/src/crypto/asn1/a_strnid.c new file mode 100644 index 0000000..df849e1 --- /dev/null +++ b/src/crypto/asn1/a_strnid.c @@ -0,0 +1,286 @@ +/* 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 <openssl/asn1.h> + +#include <stdlib.h> /* For bsearch */ +#include <string.h> + +#include <openssl/err.h> +#include <openssl/mem.h> +#include <openssl/obj.h> + + +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, ASN1_STRING_TABLE_add, 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, 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) 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 |