diff options
author | kris <kris@FreeBSD.org> | 2000-01-10 06:22:05 +0000 |
---|---|---|
committer | kris <kris@FreeBSD.org> | 2000-01-10 06:22:05 +0000 |
commit | 2e467dc342d6641955ef59a1a671ff929444d45b (patch) | |
tree | b5683ff3d44c93978826763313683673904c6bd9 /crypto/openssl/crypto/x509v3/v3_conf.c | |
parent | e829abb179a8846d90fb31e1bcab4ea0aec4590f (diff) | |
download | FreeBSD-src-2e467dc342d6641955ef59a1a671ff929444d45b.zip FreeBSD-src-2e467dc342d6641955ef59a1a671ff929444d45b.tar.gz |
Initial import of OpenSSL 0.9.4, sans IDEA and RSA code for patent
infringement reasons.
Diffstat (limited to 'crypto/openssl/crypto/x509v3/v3_conf.c')
-rw-r--r-- | crypto/openssl/crypto/x509v3/v3_conf.c | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/crypto/openssl/crypto/x509v3/v3_conf.c b/crypto/openssl/crypto/x509v3/v3_conf.c new file mode 100644 index 0000000..f19bb3a --- /dev/null +++ b/crypto/openssl/crypto/x509v3/v3_conf.c @@ -0,0 +1,366 @@ +/* v3_conf.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). + * + */ +/* extension creation utilities */ + + + +#include <stdio.h> +#include <ctype.h> +#include "cryptlib.h" +#include <openssl/conf.h> +#include <openssl/x509.h> +#include <openssl/x509v3.h> + +static int v3_check_critical(char **value); +static int v3_check_generic(char **value); +static X509_EXTENSION *do_ext_conf(LHASH *conf, X509V3_CTX *ctx, int ext_nid, int crit, char *value); +static X509_EXTENSION *v3_generic_extension(const char *ext, char *value, int crit, int type); +static char *conf_lhash_get_string(void *db, char *section, char *value); +static STACK_OF(CONF_VALUE) *conf_lhash_get_section(void *db, char *section); +static X509_EXTENSION *do_ext_i2d(X509V3_EXT_METHOD *method, int ext_nid, + int crit, void *ext_struc); +/* LHASH *conf: Config file */ +/* char *name: Name */ +/* char *value: Value */ +X509_EXTENSION *X509V3_EXT_conf(LHASH *conf, X509V3_CTX *ctx, char *name, + char *value) +{ + int crit; + int ext_type; + X509_EXTENSION *ret; + crit = v3_check_critical(&value); + if((ext_type = v3_check_generic(&value))) + return v3_generic_extension(name, value, crit, ext_type); + ret = do_ext_conf(conf, ctx, OBJ_sn2nid(name), crit, value); + if(!ret) { + X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_ERROR_IN_EXTENSION); + ERR_add_error_data(4,"name=", name, ", value=", value); + } + return ret; +} + +/* LHASH *conf: Config file */ +/* char *value: Value */ +X509_EXTENSION *X509V3_EXT_conf_nid(LHASH *conf, X509V3_CTX *ctx, int ext_nid, + char *value) +{ + int crit; + int ext_type; + crit = v3_check_critical(&value); + if((ext_type = v3_check_generic(&value))) + return v3_generic_extension(OBJ_nid2sn(ext_nid), + value, crit, ext_type); + return do_ext_conf(conf, ctx, ext_nid, crit, value); +} + +/* LHASH *conf: Config file */ +/* char *value: Value */ +static X509_EXTENSION *do_ext_conf(LHASH *conf, X509V3_CTX *ctx, int ext_nid, + int crit, char *value) +{ + X509V3_EXT_METHOD *method; + X509_EXTENSION *ext; + STACK_OF(CONF_VALUE) *nval; + void *ext_struc; + if(ext_nid == NID_undef) { + X509V3err(X509V3_F_DO_EXT_CONF,X509V3_R_UNKNOWN_EXTENSION_NAME); + return NULL; + } + if(!(method = X509V3_EXT_get_nid(ext_nid))) { + X509V3err(X509V3_F_DO_EXT_CONF,X509V3_R_UNKNOWN_EXTENSION); + return NULL; + } + /* Now get internal extension representation based on type */ + if(method->v2i) { + if(*value == '@') nval = CONF_get_section(conf, value + 1); + else nval = X509V3_parse_list(value); + if(!nval) { + X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_INVALID_EXTENSION_STRING); + ERR_add_error_data(4, "name=", OBJ_nid2sn(ext_nid), ",section=", value); + return NULL; + } + ext_struc = method->v2i(method, ctx, nval); + if(*value != '@') sk_CONF_VALUE_pop_free(nval, + X509V3_conf_free); + if(!ext_struc) return NULL; + } else if(method->s2i) { + if(!(ext_struc = method->s2i(method, ctx, value))) return NULL; + } else if(method->r2i) { + if(!ctx->db) { + X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_NO_CONFIG_DATABASE); + return NULL; + } + if(!(ext_struc = method->r2i(method, ctx, value))) return NULL; + } else { + X509V3err(X509V3_F_X509V3_EXT_CONF,X509V3_R_EXTENSION_SETTING_NOT_SUPPORTED); + ERR_add_error_data(2, "name=", OBJ_nid2sn(ext_nid)); + return NULL; + } + + ext = do_ext_i2d(method, ext_nid, crit, ext_struc); + method->ext_free(ext_struc); + return ext; + +} + +static X509_EXTENSION *do_ext_i2d(X509V3_EXT_METHOD *method, int ext_nid, + int crit, void *ext_struc) +{ + unsigned char *ext_der, *p; + int ext_len; + ASN1_OCTET_STRING *ext_oct; + X509_EXTENSION *ext; + /* Convert internal representation to DER */ + ext_len = method->i2d(ext_struc, NULL); + if(!(ext_der = Malloc(ext_len))) goto merr; + p = ext_der; + method->i2d(ext_struc, &p); + if(!(ext_oct = ASN1_OCTET_STRING_new())) goto merr; + ext_oct->data = ext_der; + ext_oct->length = ext_len; + + ext = X509_EXTENSION_create_by_NID(NULL, ext_nid, crit, ext_oct); + if(!ext) goto merr; + ASN1_OCTET_STRING_free(ext_oct); + + return ext; + + merr: + X509V3err(X509V3_F_DO_EXT_I2D,ERR_R_MALLOC_FAILURE); + return NULL; + +} + +/* Given an internal structure, nid and critical flag create an extension */ + +X509_EXTENSION *X509V3_EXT_i2d(int ext_nid, int crit, void *ext_struc) +{ + X509V3_EXT_METHOD *method; + if(!(method = X509V3_EXT_get_nid(ext_nid))) { + X509V3err(X509V3_F_X509V3_EXT_I2D,X509V3_R_UNKNOWN_EXTENSION); + return NULL; + } + return do_ext_i2d(method, ext_nid, crit, ext_struc); +} + +/* Check the extension string for critical flag */ +static int v3_check_critical(char **value) +{ + char *p = *value; + if((strlen(p) < 9) || strncmp(p, "critical,", 9)) return 0; + p+=9; + while(isspace((unsigned char)*p)) p++; + *value = p; + return 1; +} + +/* Check extension string for generic extension and return the type */ +static int v3_check_generic(char **value) +{ + char *p = *value; + if((strlen(p) < 4) || strncmp(p, "DER:,", 4)) return 0; + p+=4; + while(isspace((unsigned char)*p)) p++; + *value = p; + return 1; +} + +/* Create a generic extension: for now just handle RAW type */ +static X509_EXTENSION *v3_generic_extension(const char *ext, char *value, + int crit, int type) +{ +unsigned char *ext_der=NULL; +long ext_len; +ASN1_OBJECT *obj=NULL; +ASN1_OCTET_STRING *oct=NULL; +X509_EXTENSION *extension=NULL; +if(!(obj = OBJ_txt2obj(ext, 0))) { + X509V3err(X509V3_F_V3_GENERIC_EXTENSION,X509V3_R_EXTENSION_NAME_ERROR); + ERR_add_error_data(2, "name=", ext); + goto err; +} + +if(!(ext_der = string_to_hex(value, &ext_len))) { + X509V3err(X509V3_F_V3_GENERIC_EXTENSION,X509V3_R_EXTENSION_VALUE_ERROR); + ERR_add_error_data(2, "value=", value); + goto err; +} + +if(!(oct = ASN1_OCTET_STRING_new())) { + X509V3err(X509V3_F_V3_GENERIC_EXTENSION,ERR_R_MALLOC_FAILURE); + goto err; +} + +oct->data = ext_der; +oct->length = ext_len; +ext_der = NULL; + +extension = X509_EXTENSION_create_by_OBJ(NULL, obj, crit, oct); + +err: +ASN1_OBJECT_free(obj); +ASN1_OCTET_STRING_free(oct); +if(ext_der) Free(ext_der); +return extension; +} + + +/* This is the main function: add a bunch of extensions based on a config file + * section + */ + +int X509V3_EXT_add_conf(LHASH *conf, X509V3_CTX *ctx, char *section, + X509 *cert) +{ + X509_EXTENSION *ext; + STACK_OF(CONF_VALUE) *nval; + CONF_VALUE *val; + int i; + if(!(nval = CONF_get_section(conf, section))) return 0; + for(i = 0; i < sk_CONF_VALUE_num(nval); i++) { + val = sk_CONF_VALUE_value(nval, i); + if(!(ext = X509V3_EXT_conf(conf, ctx, val->name, val->value))) + return 0; + if(cert) X509_add_ext(cert, ext, -1); + X509_EXTENSION_free(ext); + } + return 1; +} + +/* Same as above but for a CRL */ + +int X509V3_EXT_CRL_add_conf(LHASH *conf, X509V3_CTX *ctx, char *section, + X509_CRL *crl) +{ + X509_EXTENSION *ext; + STACK_OF(CONF_VALUE) *nval; + CONF_VALUE *val; + int i; + if(!(nval = CONF_get_section(conf, section))) return 0; + for(i = 0; i < sk_CONF_VALUE_num(nval); i++) { + val = sk_CONF_VALUE_value(nval, i); + if(!(ext = X509V3_EXT_conf(conf, ctx, val->name, val->value))) + return 0; + if(crl) X509_CRL_add_ext(crl, ext, -1); + X509_EXTENSION_free(ext); + } + return 1; +} + +/* Config database functions */ + +char * X509V3_get_string(X509V3_CTX *ctx, char *name, char *section) +{ + if(ctx->db_meth->get_string) + return ctx->db_meth->get_string(ctx->db, name, section); + return NULL; +} + +STACK_OF(CONF_VALUE) * X509V3_get_section(X509V3_CTX *ctx, char *section) +{ + if(ctx->db_meth->get_section) + return ctx->db_meth->get_section(ctx->db, section); + return NULL; +} + +void X509V3_string_free(X509V3_CTX *ctx, char *str) +{ + if(!str) return; + if(ctx->db_meth->free_string) + ctx->db_meth->free_string(ctx->db, str); +} + +void X509V3_section_free(X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *section) +{ + if(!section) return; + if(ctx->db_meth->free_section) + ctx->db_meth->free_section(ctx->db, section); +} + +static char *conf_lhash_get_string(void *db, char *section, char *value) +{ + return CONF_get_string(db, section, value); +} + +static STACK_OF(CONF_VALUE) *conf_lhash_get_section(void *db, char *section) +{ + return CONF_get_section(db, section); +} + +static X509V3_CONF_METHOD conf_lhash_method = { +conf_lhash_get_string, +conf_lhash_get_section, +NULL, +NULL +}; + +void X509V3_set_conf_lhash(X509V3_CTX *ctx, LHASH *lhash) +{ + ctx->db_meth = &conf_lhash_method; + ctx->db = lhash; +} + +void X509V3_set_ctx(X509V3_CTX *ctx, X509 *issuer, X509 *subj, X509_REQ *req, + X509_CRL *crl, int flags) +{ + ctx->issuer_cert = issuer; + ctx->subject_cert = subj; + ctx->crl = crl; + ctx->subject_req = req; + ctx->flags = flags; +} |