843 lines
25 KiB
C
843 lines
25 KiB
C
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.] */
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#include <openssl/x509.h>
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#include <string.h>
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#include <openssl/asn1.h>
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#include <openssl/err.h>
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#include <openssl/mem.h>
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#include <openssl/obj.h>
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#include <openssl/x509v3.h>
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#include "../internal.h"
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#include "../x509v3/internal.h"
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/*
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* Although this file is in crypto/x509 for layering purposes, it emits
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* errors from the ASN.1 module for OpenSSL compatibility.
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*/
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#define ASN1_GEN_FLAG 0x10000
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#define ASN1_GEN_FLAG_IMP (ASN1_GEN_FLAG|1)
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#define ASN1_GEN_FLAG_EXP (ASN1_GEN_FLAG|2)
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#define ASN1_GEN_FLAG_TAG (ASN1_GEN_FLAG|3)
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#define ASN1_GEN_FLAG_BITWRAP (ASN1_GEN_FLAG|4)
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#define ASN1_GEN_FLAG_OCTWRAP (ASN1_GEN_FLAG|5)
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#define ASN1_GEN_FLAG_SEQWRAP (ASN1_GEN_FLAG|6)
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#define ASN1_GEN_FLAG_SETWRAP (ASN1_GEN_FLAG|7)
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#define ASN1_GEN_FLAG_FORMAT (ASN1_GEN_FLAG|8)
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#define ASN1_GEN_STR(str,val) {str, sizeof(str) - 1, val}
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#define ASN1_FLAG_EXP_MAX 20
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/* Maximum number of nested sequences */
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#define ASN1_GEN_SEQ_MAX_DEPTH 50
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/* Input formats */
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/* ASCII: default */
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#define ASN1_GEN_FORMAT_ASCII 1
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/* UTF8 */
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#define ASN1_GEN_FORMAT_UTF8 2
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/* Hex */
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#define ASN1_GEN_FORMAT_HEX 3
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/* List of bits */
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#define ASN1_GEN_FORMAT_BITLIST 4
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struct tag_name_st {
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const char *strnam;
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int len;
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int tag;
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};
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typedef struct {
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int exp_tag;
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int exp_class;
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int exp_constructed;
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int exp_pad;
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long exp_len;
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} tag_exp_type;
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typedef struct {
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int imp_tag;
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int imp_class;
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int utype;
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int format;
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const char *str;
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tag_exp_type exp_list[ASN1_FLAG_EXP_MAX];
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int exp_count;
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} tag_exp_arg;
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static ASN1_TYPE *generate_v3(char *str, X509V3_CTX *cnf, int depth,
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int *perr);
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static int bitstr_cb(const char *elem, int len, void *bitstr);
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static int asn1_cb(const char *elem, int len, void *bitstr);
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static int append_exp(tag_exp_arg *arg, int exp_tag, int exp_class,
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int exp_constructed, int exp_pad, int imp_ok);
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static int parse_tagging(const char *vstart, int vlen, int *ptag,
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int *pclass);
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static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf,
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int depth, int *perr);
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static ASN1_TYPE *asn1_str2type(const char *str, int format, int utype);
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static int asn1_str2tag(const char *tagstr, int len);
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ASN1_TYPE *ASN1_generate_nconf(char *str, CONF *nconf)
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{
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X509V3_CTX cnf;
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if (!nconf)
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return ASN1_generate_v3(str, NULL);
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X509V3_set_nconf(&cnf, nconf);
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return ASN1_generate_v3(str, &cnf);
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}
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ASN1_TYPE *ASN1_generate_v3(char *str, X509V3_CTX *cnf)
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{
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int err = 0;
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ASN1_TYPE *ret = generate_v3(str, cnf, 0, &err);
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if (err)
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OPENSSL_PUT_ERROR(ASN1, err);
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return ret;
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}
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static ASN1_TYPE *generate_v3(char *str, X509V3_CTX *cnf, int depth,
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int *perr)
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{
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ASN1_TYPE *ret;
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tag_exp_arg asn1_tags;
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tag_exp_type *etmp;
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int i, len;
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unsigned char *orig_der = NULL, *new_der = NULL;
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const unsigned char *cpy_start;
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unsigned char *p;
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const unsigned char *cp;
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int cpy_len;
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long hdr_len = 0;
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int hdr_constructed = 0, hdr_tag, hdr_class;
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int r;
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asn1_tags.imp_tag = -1;
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asn1_tags.imp_class = -1;
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asn1_tags.format = ASN1_GEN_FORMAT_ASCII;
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asn1_tags.exp_count = 0;
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if (CONF_parse_list(str, ',', 1, asn1_cb, &asn1_tags) != 0) {
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*perr = ASN1_R_UNKNOWN_TAG;
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return NULL;
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}
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if ((asn1_tags.utype == V_ASN1_SEQUENCE)
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|| (asn1_tags.utype == V_ASN1_SET)) {
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if (!cnf) {
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*perr = ASN1_R_SEQUENCE_OR_SET_NEEDS_CONFIG;
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return NULL;
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}
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if (depth >= ASN1_GEN_SEQ_MAX_DEPTH) {
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*perr = ASN1_R_ILLEGAL_NESTED_TAGGING;
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return NULL;
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}
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ret = asn1_multi(asn1_tags.utype, asn1_tags.str, cnf, depth, perr);
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} else
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ret = asn1_str2type(asn1_tags.str, asn1_tags.format, asn1_tags.utype);
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if (!ret)
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return NULL;
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/* If no tagging return base type */
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if ((asn1_tags.imp_tag == -1) && (asn1_tags.exp_count == 0))
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return ret;
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/* Generate the encoding */
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cpy_len = i2d_ASN1_TYPE(ret, &orig_der);
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ASN1_TYPE_free(ret);
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ret = NULL;
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/* Set point to start copying for modified encoding */
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cpy_start = orig_der;
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/* Do we need IMPLICIT tagging? */
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if (asn1_tags.imp_tag != -1) {
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/* If IMPLICIT we will replace the underlying tag */
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/* Skip existing tag+len */
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r = ASN1_get_object(&cpy_start, &hdr_len, &hdr_tag, &hdr_class,
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cpy_len);
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if (r & 0x80)
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goto err;
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/* Update copy length */
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cpy_len -= cpy_start - orig_der;
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/*
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* For IMPLICIT tagging the length should match the original length
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* and constructed flag should be consistent.
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*/
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if (r & 0x1) {
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/* Indefinite length constructed */
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hdr_constructed = 2;
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hdr_len = 0;
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} else
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/* Just retain constructed flag */
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hdr_constructed = r & V_ASN1_CONSTRUCTED;
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/*
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* Work out new length with IMPLICIT tag: ignore constructed because
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* it will mess up if indefinite length
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*/
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len = ASN1_object_size(0, hdr_len, asn1_tags.imp_tag);
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} else
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len = cpy_len;
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/* Work out length in any EXPLICIT, starting from end */
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for (i = 0, etmp = asn1_tags.exp_list + asn1_tags.exp_count - 1;
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i < asn1_tags.exp_count; i++, etmp--) {
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/* Content length: number of content octets + any padding */
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len += etmp->exp_pad;
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etmp->exp_len = len;
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/* Total object length: length including new header */
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len = ASN1_object_size(0, len, etmp->exp_tag);
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}
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/* Allocate buffer for new encoding */
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new_der = OPENSSL_malloc(len);
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if (!new_der)
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goto err;
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/* Generate tagged encoding */
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p = new_der;
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/* Output explicit tags first */
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for (i = 0, etmp = asn1_tags.exp_list; i < asn1_tags.exp_count;
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i++, etmp++) {
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ASN1_put_object(&p, etmp->exp_constructed, etmp->exp_len,
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etmp->exp_tag, etmp->exp_class);
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if (etmp->exp_pad)
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*p++ = 0;
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}
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/* If IMPLICIT, output tag */
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if (asn1_tags.imp_tag != -1) {
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if (asn1_tags.imp_class == V_ASN1_UNIVERSAL
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&& (asn1_tags.imp_tag == V_ASN1_SEQUENCE
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|| asn1_tags.imp_tag == V_ASN1_SET))
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hdr_constructed = V_ASN1_CONSTRUCTED;
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ASN1_put_object(&p, hdr_constructed, hdr_len,
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asn1_tags.imp_tag, asn1_tags.imp_class);
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}
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/* Copy across original encoding */
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OPENSSL_memcpy(p, cpy_start, cpy_len);
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cp = new_der;
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/* Obtain new ASN1_TYPE structure */
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ret = d2i_ASN1_TYPE(NULL, &cp, len);
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err:
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if (orig_der)
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OPENSSL_free(orig_der);
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if (new_der)
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OPENSSL_free(new_der);
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return ret;
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}
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static int asn1_cb(const char *elem, int len, void *bitstr)
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{
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tag_exp_arg *arg = bitstr;
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int i;
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int utype;
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int vlen = 0;
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const char *p, *vstart = NULL;
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int tmp_tag, tmp_class;
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if (elem == NULL)
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return -1;
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for (i = 0, p = elem; i < len; p++, i++) {
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/* Look for the ':' in name value pairs */
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if (*p == ':') {
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vstart = p + 1;
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vlen = len - (vstart - elem);
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len = p - elem;
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break;
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}
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}
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utype = asn1_str2tag(elem, len);
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if (utype == -1) {
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OPENSSL_PUT_ERROR(ASN1, ASN1_R_UNKNOWN_TAG);
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ERR_add_error_data(2, "tag=", elem);
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return -1;
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}
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/* If this is not a modifier mark end of string and exit */
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if (!(utype & ASN1_GEN_FLAG)) {
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arg->utype = utype;
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arg->str = vstart;
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/* If no value and not end of string, error */
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if (!vstart && elem[len]) {
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OPENSSL_PUT_ERROR(ASN1, ASN1_R_MISSING_VALUE);
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return -1;
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}
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return 0;
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}
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switch (utype) {
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case ASN1_GEN_FLAG_IMP:
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/* Check for illegal multiple IMPLICIT tagging */
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if (arg->imp_tag != -1) {
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OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_NESTED_TAGGING);
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return -1;
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}
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if (!parse_tagging(vstart, vlen, &arg->imp_tag, &arg->imp_class))
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return -1;
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break;
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case ASN1_GEN_FLAG_EXP:
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if (!parse_tagging(vstart, vlen, &tmp_tag, &tmp_class))
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return -1;
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if (!append_exp(arg, tmp_tag, tmp_class, 1, 0, 0))
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return -1;
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break;
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case ASN1_GEN_FLAG_SEQWRAP:
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if (!append_exp(arg, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, 1, 0, 1))
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return -1;
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break;
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case ASN1_GEN_FLAG_SETWRAP:
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if (!append_exp(arg, V_ASN1_SET, V_ASN1_UNIVERSAL, 1, 0, 1))
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return -1;
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break;
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case ASN1_GEN_FLAG_BITWRAP:
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if (!append_exp(arg, V_ASN1_BIT_STRING, V_ASN1_UNIVERSAL, 0, 1, 1))
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return -1;
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break;
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case ASN1_GEN_FLAG_OCTWRAP:
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if (!append_exp(arg, V_ASN1_OCTET_STRING, V_ASN1_UNIVERSAL, 0, 0, 1))
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return -1;
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break;
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case ASN1_GEN_FLAG_FORMAT:
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if (!vstart) {
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OPENSSL_PUT_ERROR(ASN1, ASN1_R_UNKNOWN_FORMAT);
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return -1;
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}
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if (!strncmp(vstart, "ASCII", 5))
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arg->format = ASN1_GEN_FORMAT_ASCII;
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else if (!strncmp(vstart, "UTF8", 4))
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arg->format = ASN1_GEN_FORMAT_UTF8;
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else if (!strncmp(vstart, "HEX", 3))
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arg->format = ASN1_GEN_FORMAT_HEX;
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else if (!strncmp(vstart, "BITLIST", 7))
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arg->format = ASN1_GEN_FORMAT_BITLIST;
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else {
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OPENSSL_PUT_ERROR(ASN1, ASN1_R_UNKNOWN_FORMAT);
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return -1;
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}
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break;
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}
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return 1;
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}
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static int parse_tagging(const char *vstart, int vlen, int *ptag, int *pclass)
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{
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char erch[2];
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long tag_num;
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char *eptr;
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if (!vstart)
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return 0;
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tag_num = strtoul(vstart, &eptr, 10);
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/* Check we haven't gone past max length: should be impossible */
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if (eptr && *eptr && (eptr > vstart + vlen))
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return 0;
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if (tag_num < 0) {
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OPENSSL_PUT_ERROR(ASN1, ASN1_R_INVALID_NUMBER);
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return 0;
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}
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*ptag = tag_num;
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/* If we have non numeric characters, parse them */
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if (eptr)
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vlen -= eptr - vstart;
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else
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vlen = 0;
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if (vlen) {
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switch (*eptr) {
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case 'U':
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*pclass = V_ASN1_UNIVERSAL;
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break;
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case 'A':
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*pclass = V_ASN1_APPLICATION;
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break;
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case 'P':
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*pclass = V_ASN1_PRIVATE;
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break;
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case 'C':
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*pclass = V_ASN1_CONTEXT_SPECIFIC;
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break;
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default:
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erch[0] = *eptr;
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erch[1] = 0;
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OPENSSL_PUT_ERROR(ASN1, ASN1_R_INVALID_MODIFIER);
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ERR_add_error_data(2, "Char=", erch);
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return 0;
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break;
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}
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} else
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*pclass = V_ASN1_CONTEXT_SPECIFIC;
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return 1;
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}
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/* Handle multiple types: SET and SEQUENCE */
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static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf,
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int depth, int *perr)
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{
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ASN1_TYPE *ret = NULL;
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STACK_OF(ASN1_TYPE) *sk = NULL;
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STACK_OF(CONF_VALUE) *sect = NULL;
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unsigned char *der = NULL;
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int derlen;
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size_t i;
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sk = sk_ASN1_TYPE_new_null();
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if (!sk)
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goto bad;
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if (section) {
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if (!cnf)
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goto bad;
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sect = X509V3_get_section(cnf, (char *)section);
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if (!sect)
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goto bad;
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for (i = 0; i < sk_CONF_VALUE_num(sect); i++) {
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ASN1_TYPE *typ =
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generate_v3(sk_CONF_VALUE_value(sect, i)->value, cnf,
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depth + 1, perr);
|
|
if (!typ)
|
|
goto bad;
|
|
if (!sk_ASN1_TYPE_push(sk, typ))
|
|
goto bad;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Now we has a STACK of the components, convert to the correct form
|
|
*/
|
|
|
|
if (utype == V_ASN1_SET)
|
|
derlen = i2d_ASN1_SET_ANY(sk, &der);
|
|
else
|
|
derlen = i2d_ASN1_SEQUENCE_ANY(sk, &der);
|
|
|
|
if (derlen < 0)
|
|
goto bad;
|
|
|
|
if (!(ret = ASN1_TYPE_new()))
|
|
goto bad;
|
|
|
|
if (!(ret->value.asn1_string = ASN1_STRING_type_new(utype)))
|
|
goto bad;
|
|
|
|
ret->type = utype;
|
|
|
|
ret->value.asn1_string->data = der;
|
|
ret->value.asn1_string->length = derlen;
|
|
|
|
der = NULL;
|
|
|
|
bad:
|
|
|
|
if (der)
|
|
OPENSSL_free(der);
|
|
|
|
if (sk)
|
|
sk_ASN1_TYPE_pop_free(sk, ASN1_TYPE_free);
|
|
if (sect)
|
|
X509V3_section_free(cnf, sect);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int append_exp(tag_exp_arg *arg, int exp_tag, int exp_class,
|
|
int exp_constructed, int exp_pad, int imp_ok)
|
|
{
|
|
tag_exp_type *exp_tmp;
|
|
/* Can only have IMPLICIT if permitted */
|
|
if ((arg->imp_tag != -1) && !imp_ok) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_IMPLICIT_TAG);
|
|
return 0;
|
|
}
|
|
|
|
if (arg->exp_count == ASN1_FLAG_EXP_MAX) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_DEPTH_EXCEEDED);
|
|
return 0;
|
|
}
|
|
|
|
exp_tmp = &arg->exp_list[arg->exp_count++];
|
|
|
|
/*
|
|
* If IMPLICIT set tag to implicit value then reset implicit tag since it
|
|
* has been used.
|
|
*/
|
|
if (arg->imp_tag != -1) {
|
|
exp_tmp->exp_tag = arg->imp_tag;
|
|
exp_tmp->exp_class = arg->imp_class;
|
|
arg->imp_tag = -1;
|
|
arg->imp_class = -1;
|
|
} else {
|
|
exp_tmp->exp_tag = exp_tag;
|
|
exp_tmp->exp_class = exp_class;
|
|
}
|
|
exp_tmp->exp_constructed = exp_constructed;
|
|
exp_tmp->exp_pad = exp_pad;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int asn1_str2tag(const char *tagstr, int len)
|
|
{
|
|
unsigned int i;
|
|
static const struct tag_name_st *tntmp, tnst[] = {
|
|
ASN1_GEN_STR("BOOL", V_ASN1_BOOLEAN),
|
|
ASN1_GEN_STR("BOOLEAN", V_ASN1_BOOLEAN),
|
|
ASN1_GEN_STR("NULL", V_ASN1_NULL),
|
|
ASN1_GEN_STR("INT", V_ASN1_INTEGER),
|
|
ASN1_GEN_STR("INTEGER", V_ASN1_INTEGER),
|
|
ASN1_GEN_STR("ENUM", V_ASN1_ENUMERATED),
|
|
ASN1_GEN_STR("ENUMERATED", V_ASN1_ENUMERATED),
|
|
ASN1_GEN_STR("OID", V_ASN1_OBJECT),
|
|
ASN1_GEN_STR("OBJECT", V_ASN1_OBJECT),
|
|
ASN1_GEN_STR("UTCTIME", V_ASN1_UTCTIME),
|
|
ASN1_GEN_STR("UTC", V_ASN1_UTCTIME),
|
|
ASN1_GEN_STR("GENERALIZEDTIME", V_ASN1_GENERALIZEDTIME),
|
|
ASN1_GEN_STR("GENTIME", V_ASN1_GENERALIZEDTIME),
|
|
ASN1_GEN_STR("OCT", V_ASN1_OCTET_STRING),
|
|
ASN1_GEN_STR("OCTETSTRING", V_ASN1_OCTET_STRING),
|
|
ASN1_GEN_STR("BITSTR", V_ASN1_BIT_STRING),
|
|
ASN1_GEN_STR("BITSTRING", V_ASN1_BIT_STRING),
|
|
ASN1_GEN_STR("UNIVERSALSTRING", V_ASN1_UNIVERSALSTRING),
|
|
ASN1_GEN_STR("UNIV", V_ASN1_UNIVERSALSTRING),
|
|
ASN1_GEN_STR("IA5", V_ASN1_IA5STRING),
|
|
ASN1_GEN_STR("IA5STRING", V_ASN1_IA5STRING),
|
|
ASN1_GEN_STR("UTF8", V_ASN1_UTF8STRING),
|
|
ASN1_GEN_STR("UTF8String", V_ASN1_UTF8STRING),
|
|
ASN1_GEN_STR("BMP", V_ASN1_BMPSTRING),
|
|
ASN1_GEN_STR("BMPSTRING", V_ASN1_BMPSTRING),
|
|
ASN1_GEN_STR("VISIBLESTRING", V_ASN1_VISIBLESTRING),
|
|
ASN1_GEN_STR("VISIBLE", V_ASN1_VISIBLESTRING),
|
|
ASN1_GEN_STR("PRINTABLESTRING", V_ASN1_PRINTABLESTRING),
|
|
ASN1_GEN_STR("PRINTABLE", V_ASN1_PRINTABLESTRING),
|
|
ASN1_GEN_STR("T61", V_ASN1_T61STRING),
|
|
ASN1_GEN_STR("T61STRING", V_ASN1_T61STRING),
|
|
ASN1_GEN_STR("TELETEXSTRING", V_ASN1_T61STRING),
|
|
ASN1_GEN_STR("GeneralString", V_ASN1_GENERALSTRING),
|
|
ASN1_GEN_STR("GENSTR", V_ASN1_GENERALSTRING),
|
|
ASN1_GEN_STR("NUMERIC", V_ASN1_NUMERICSTRING),
|
|
ASN1_GEN_STR("NUMERICSTRING", V_ASN1_NUMERICSTRING),
|
|
|
|
/* Special cases */
|
|
ASN1_GEN_STR("SEQUENCE", V_ASN1_SEQUENCE),
|
|
ASN1_GEN_STR("SEQ", V_ASN1_SEQUENCE),
|
|
ASN1_GEN_STR("SET", V_ASN1_SET),
|
|
/* type modifiers */
|
|
/* Explicit tag */
|
|
ASN1_GEN_STR("EXP", ASN1_GEN_FLAG_EXP),
|
|
ASN1_GEN_STR("EXPLICIT", ASN1_GEN_FLAG_EXP),
|
|
/* Implicit tag */
|
|
ASN1_GEN_STR("IMP", ASN1_GEN_FLAG_IMP),
|
|
ASN1_GEN_STR("IMPLICIT", ASN1_GEN_FLAG_IMP),
|
|
/* OCTET STRING wrapper */
|
|
ASN1_GEN_STR("OCTWRAP", ASN1_GEN_FLAG_OCTWRAP),
|
|
/* SEQUENCE wrapper */
|
|
ASN1_GEN_STR("SEQWRAP", ASN1_GEN_FLAG_SEQWRAP),
|
|
/* SET wrapper */
|
|
ASN1_GEN_STR("SETWRAP", ASN1_GEN_FLAG_SETWRAP),
|
|
/* BIT STRING wrapper */
|
|
ASN1_GEN_STR("BITWRAP", ASN1_GEN_FLAG_BITWRAP),
|
|
ASN1_GEN_STR("FORM", ASN1_GEN_FLAG_FORMAT),
|
|
ASN1_GEN_STR("FORMAT", ASN1_GEN_FLAG_FORMAT),
|
|
};
|
|
|
|
if (len == -1)
|
|
len = strlen(tagstr);
|
|
|
|
tntmp = tnst;
|
|
for (i = 0; i < sizeof(tnst) / sizeof(struct tag_name_st); i++, tntmp++) {
|
|
if ((len == tntmp->len) && !strncmp(tntmp->strnam, tagstr, len))
|
|
return tntmp->tag;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static ASN1_TYPE *asn1_str2type(const char *str, int format, int utype)
|
|
{
|
|
ASN1_TYPE *atmp = NULL;
|
|
|
|
CONF_VALUE vtmp;
|
|
|
|
unsigned char *rdata;
|
|
long rdlen;
|
|
|
|
int no_unused = 1;
|
|
|
|
if (!(atmp = ASN1_TYPE_new())) {
|
|
OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
|
|
return NULL;
|
|
}
|
|
|
|
if (!str)
|
|
str = "";
|
|
|
|
switch (utype) {
|
|
|
|
case V_ASN1_NULL:
|
|
if (str && *str) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_NULL_VALUE);
|
|
goto bad_form;
|
|
}
|
|
break;
|
|
|
|
case V_ASN1_BOOLEAN:
|
|
if (format != ASN1_GEN_FORMAT_ASCII) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_NOT_ASCII_FORMAT);
|
|
goto bad_form;
|
|
}
|
|
vtmp.name = NULL;
|
|
vtmp.section = NULL;
|
|
vtmp.value = (char *)str;
|
|
if (!X509V3_get_value_bool(&vtmp, &atmp->value.boolean)) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_BOOLEAN);
|
|
goto bad_str;
|
|
}
|
|
break;
|
|
|
|
case V_ASN1_INTEGER:
|
|
case V_ASN1_ENUMERATED:
|
|
if (format != ASN1_GEN_FORMAT_ASCII) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_INTEGER_NOT_ASCII_FORMAT);
|
|
goto bad_form;
|
|
}
|
|
if (!(atmp->value.integer = s2i_ASN1_INTEGER(NULL, (char *)str))) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_INTEGER);
|
|
goto bad_str;
|
|
}
|
|
break;
|
|
|
|
case V_ASN1_OBJECT:
|
|
if (format != ASN1_GEN_FORMAT_ASCII) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_OBJECT_NOT_ASCII_FORMAT);
|
|
goto bad_form;
|
|
}
|
|
if (!(atmp->value.object = OBJ_txt2obj(str, 0))) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_OBJECT);
|
|
goto bad_str;
|
|
}
|
|
break;
|
|
|
|
case V_ASN1_UTCTIME:
|
|
case V_ASN1_GENERALIZEDTIME:
|
|
if (format != ASN1_GEN_FORMAT_ASCII) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_TIME_NOT_ASCII_FORMAT);
|
|
goto bad_form;
|
|
}
|
|
if (!(atmp->value.asn1_string = ASN1_STRING_new())) {
|
|
OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
|
|
goto bad_str;
|
|
}
|
|
if (!ASN1_STRING_set(atmp->value.asn1_string, str, -1)) {
|
|
OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
|
|
goto bad_str;
|
|
}
|
|
atmp->value.asn1_string->type = utype;
|
|
if (!ASN1_TIME_check(atmp->value.asn1_string)) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_TIME_VALUE);
|
|
goto bad_str;
|
|
}
|
|
|
|
break;
|
|
|
|
case V_ASN1_BMPSTRING:
|
|
case V_ASN1_PRINTABLESTRING:
|
|
case V_ASN1_IA5STRING:
|
|
case V_ASN1_T61STRING:
|
|
case V_ASN1_UTF8STRING:
|
|
case V_ASN1_VISIBLESTRING:
|
|
case V_ASN1_UNIVERSALSTRING:
|
|
case V_ASN1_GENERALSTRING:
|
|
case V_ASN1_NUMERICSTRING:
|
|
|
|
if (format == ASN1_GEN_FORMAT_ASCII)
|
|
format = MBSTRING_ASC;
|
|
else if (format == ASN1_GEN_FORMAT_UTF8)
|
|
format = MBSTRING_UTF8;
|
|
else {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_FORMAT);
|
|
goto bad_form;
|
|
}
|
|
|
|
if (ASN1_mbstring_copy(&atmp->value.asn1_string, (unsigned char *)str,
|
|
-1, format, ASN1_tag2bit(utype)) <= 0) {
|
|
OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
|
|
goto bad_str;
|
|
}
|
|
|
|
break;
|
|
|
|
case V_ASN1_BIT_STRING:
|
|
|
|
case V_ASN1_OCTET_STRING:
|
|
|
|
if (!(atmp->value.asn1_string = ASN1_STRING_new())) {
|
|
OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
|
|
goto bad_form;
|
|
}
|
|
|
|
if (format == ASN1_GEN_FORMAT_HEX) {
|
|
|
|
if (!(rdata = x509v3_hex_to_bytes((char *)str, &rdlen))) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_HEX);
|
|
goto bad_str;
|
|
}
|
|
|
|
atmp->value.asn1_string->data = rdata;
|
|
atmp->value.asn1_string->length = rdlen;
|
|
atmp->value.asn1_string->type = utype;
|
|
|
|
} else if (format == ASN1_GEN_FORMAT_ASCII)
|
|
ASN1_STRING_set(atmp->value.asn1_string, str, -1);
|
|
else if ((format == ASN1_GEN_FORMAT_BITLIST)
|
|
&& (utype == V_ASN1_BIT_STRING)) {
|
|
if (!CONF_parse_list
|
|
(str, ',', 1, bitstr_cb, atmp->value.bit_string)) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_LIST_ERROR);
|
|
goto bad_str;
|
|
}
|
|
no_unused = 0;
|
|
|
|
} else {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_ILLEGAL_BITSTRING_FORMAT);
|
|
goto bad_form;
|
|
}
|
|
|
|
if ((utype == V_ASN1_BIT_STRING) && no_unused) {
|
|
atmp->value.asn1_string->flags
|
|
&= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
|
|
atmp->value.asn1_string->flags |= ASN1_STRING_FLAG_BITS_LEFT;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_UNSUPPORTED_TYPE);
|
|
goto bad_str;
|
|
break;
|
|
}
|
|
|
|
atmp->type = utype;
|
|
return atmp;
|
|
|
|
bad_str:
|
|
ERR_add_error_data(2, "string=", str);
|
|
bad_form:
|
|
|
|
ASN1_TYPE_free(atmp);
|
|
return NULL;
|
|
|
|
}
|
|
|
|
static int bitstr_cb(const char *elem, int len, void *bitstr)
|
|
{
|
|
long bitnum;
|
|
char *eptr;
|
|
if (!elem)
|
|
return 0;
|
|
bitnum = strtoul(elem, &eptr, 10);
|
|
if (eptr && *eptr && (eptr != elem + len))
|
|
return 0;
|
|
if (bitnum < 0) {
|
|
OPENSSL_PUT_ERROR(ASN1, ASN1_R_INVALID_NUMBER);
|
|
return 0;
|
|
}
|
|
if (!ASN1_BIT_STRING_set_bit(bitstr, bitnum, 1)) {
|
|
OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|