66ab08b1cf
documentation to reflect the STACK_OF(CONF_VALUE) change to the CONF lib and use ANSI typedefs for X509V3_EXT_I2D and X509V3_EXT_FREE.
418 lines
11 KiB
C
418 lines
11 KiB
C
/* v3_utl.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).
|
|
*
|
|
*/
|
|
/* X509 v3 extension utilities */
|
|
|
|
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include "cryptlib.h"
|
|
#include <openssl/conf.h>
|
|
#include <openssl/x509v3.h>
|
|
|
|
static char *strip_spaces(char *name);
|
|
|
|
/* Add a CONF_VALUE name value pair to stack */
|
|
|
|
int X509V3_add_value(const char *name, const char *value,
|
|
STACK_OF(CONF_VALUE) **extlist)
|
|
{
|
|
CONF_VALUE *vtmp = NULL;
|
|
char *tname = NULL, *tvalue = NULL;
|
|
if(name && !(tname = BUF_strdup(name))) goto err;
|
|
if(value && !(tvalue = BUF_strdup(value))) goto err;;
|
|
if(!(vtmp = (CONF_VALUE *)Malloc(sizeof(CONF_VALUE)))) goto err;
|
|
if(!*extlist && !(*extlist = sk_CONF_VALUE_new(NULL))) goto err;
|
|
vtmp->section = NULL;
|
|
vtmp->name = tname;
|
|
vtmp->value = tvalue;
|
|
if(!sk_CONF_VALUE_push(*extlist, vtmp)) goto err;
|
|
return 1;
|
|
err:
|
|
X509V3err(X509V3_F_X509V3_ADD_VALUE,ERR_R_MALLOC_FAILURE);
|
|
if(vtmp) Free(vtmp);
|
|
if(tname) Free(tname);
|
|
if(tvalue) Free(tvalue);
|
|
return 0;
|
|
}
|
|
|
|
int X509V3_add_value_uchar(const char *name, const unsigned char *value,
|
|
STACK_OF(CONF_VALUE) **extlist)
|
|
{
|
|
return X509V3_add_value(name,(const char *)value,extlist);
|
|
}
|
|
|
|
/* Free function for STACK_OF(CONF_VALUE) */
|
|
|
|
void X509V3_conf_free(CONF_VALUE *conf)
|
|
{
|
|
if(!conf) return;
|
|
if(conf->name) Free(conf->name);
|
|
if(conf->value) Free(conf->value);
|
|
if(conf->section) Free(conf->section);
|
|
Free((char *)conf);
|
|
}
|
|
|
|
int X509V3_add_value_bool(const char *name, int asn1_bool,
|
|
STACK_OF(CONF_VALUE) **extlist)
|
|
{
|
|
if(asn1_bool) return X509V3_add_value(name, "TRUE", extlist);
|
|
return X509V3_add_value(name, "FALSE", extlist);
|
|
}
|
|
|
|
int X509V3_add_value_bool_nf(char *name, int asn1_bool,
|
|
STACK_OF(CONF_VALUE) **extlist)
|
|
{
|
|
if(asn1_bool) return X509V3_add_value(name, "TRUE", extlist);
|
|
return 1;
|
|
}
|
|
|
|
|
|
char *i2s_ASN1_ENUMERATED(X509V3_EXT_METHOD *method, ASN1_ENUMERATED *a)
|
|
{
|
|
BIGNUM *bntmp = NULL;
|
|
char *strtmp = NULL;
|
|
if(!a) return NULL;
|
|
if(!(bntmp = ASN1_ENUMERATED_to_BN(a, NULL)) ||
|
|
!(strtmp = BN_bn2dec(bntmp)) )
|
|
X509V3err(X509V3_F_I2S_ASN1_ENUMERATED,ERR_R_MALLOC_FAILURE);
|
|
BN_free(bntmp);
|
|
return strtmp;
|
|
}
|
|
|
|
char *i2s_ASN1_INTEGER(X509V3_EXT_METHOD *method, ASN1_INTEGER *a)
|
|
{
|
|
BIGNUM *bntmp = NULL;
|
|
char *strtmp = NULL;
|
|
if(!a) return NULL;
|
|
if(!(bntmp = ASN1_INTEGER_to_BN(a, NULL)) ||
|
|
!(strtmp = BN_bn2dec(bntmp)) )
|
|
X509V3err(X509V3_F_I2S_ASN1_INTEGER,ERR_R_MALLOC_FAILURE);
|
|
BN_free(bntmp);
|
|
return strtmp;
|
|
}
|
|
|
|
ASN1_INTEGER *s2i_ASN1_INTEGER(X509V3_EXT_METHOD *method, char *value)
|
|
{
|
|
BIGNUM *bn = NULL;
|
|
ASN1_INTEGER *aint;
|
|
bn = BN_new();
|
|
if(!value) {
|
|
X509V3err(X509V3_F_S2I_ASN1_INTEGER,X509V3_R_INVALID_NULL_VALUE);
|
|
return 0;
|
|
}
|
|
if(!BN_dec2bn(&bn, value)) {
|
|
X509V3err(X509V3_F_S2I_ASN1_INTEGER,X509V3_R_BN_DEC2BN_ERROR);
|
|
return 0;
|
|
}
|
|
|
|
if(!(aint = BN_to_ASN1_INTEGER(bn, NULL))) {
|
|
X509V3err(X509V3_F_S2I_ASN1_INTEGER,X509V3_R_BN_TO_ASN1_INTEGER_ERROR);
|
|
return 0;
|
|
}
|
|
BN_free(bn);
|
|
return aint;
|
|
}
|
|
|
|
int X509V3_add_value_int(const char *name, ASN1_INTEGER *aint,
|
|
STACK_OF(CONF_VALUE) **extlist)
|
|
{
|
|
char *strtmp;
|
|
int ret;
|
|
if(!aint) return 1;
|
|
if(!(strtmp = i2s_ASN1_INTEGER(NULL, aint))) return 0;
|
|
ret = X509V3_add_value(name, strtmp, extlist);
|
|
Free(strtmp);
|
|
return ret;
|
|
}
|
|
|
|
int X509V3_get_value_bool(CONF_VALUE *value, int *asn1_bool)
|
|
{
|
|
char *btmp;
|
|
if(!(btmp = value->value)) goto err;
|
|
if(!strcmp(btmp, "TRUE") || !strcmp(btmp, "true")
|
|
|| !strcmp(btmp, "Y") || !strcmp(btmp, "y")
|
|
|| !strcmp(btmp, "YES") || !strcmp(btmp, "yes")) {
|
|
*asn1_bool = 0xff;
|
|
return 1;
|
|
} else if(!strcmp(btmp, "FALSE") || !strcmp(btmp, "false")
|
|
|| !strcmp(btmp, "N") || !strcmp(btmp, "n")
|
|
|| !strcmp(btmp, "NO") || !strcmp(btmp, "no")) {
|
|
*asn1_bool = 0;
|
|
return 1;
|
|
}
|
|
err:
|
|
X509V3err(X509V3_F_X509V3_GET_VALUE_BOOL,X509V3_R_INVALID_BOOLEAN_STRING);
|
|
X509V3_conf_err(value);
|
|
return 0;
|
|
}
|
|
|
|
int X509V3_get_value_int(CONF_VALUE *value, ASN1_INTEGER **aint)
|
|
{
|
|
ASN1_INTEGER *itmp;
|
|
if(!(itmp = s2i_ASN1_INTEGER(NULL, value->value))) {
|
|
X509V3_conf_err(value);
|
|
return 0;
|
|
}
|
|
*aint = itmp;
|
|
return 1;
|
|
}
|
|
|
|
#define HDR_NAME 1
|
|
#define HDR_VALUE 2
|
|
|
|
/*#define DEBUG*/
|
|
|
|
STACK_OF(CONF_VALUE) *X509V3_parse_list(char *line)
|
|
{
|
|
char *p, *q, c;
|
|
char *ntmp, *vtmp;
|
|
STACK_OF(CONF_VALUE) *values = NULL;
|
|
char *linebuf;
|
|
int state;
|
|
/* We are going to modify the line so copy it first */
|
|
linebuf = BUF_strdup(line);
|
|
state = HDR_NAME;
|
|
ntmp = NULL;
|
|
/* Go through all characters */
|
|
for(p = linebuf, q = linebuf; (c = *p) && (c!='\r') && (c!='\n'); p++) {
|
|
|
|
switch(state) {
|
|
case HDR_NAME:
|
|
if(c == ':') {
|
|
state = HDR_VALUE;
|
|
*p = 0;
|
|
ntmp = strip_spaces(q);
|
|
if(!ntmp) {
|
|
X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_NAME);
|
|
goto err;
|
|
}
|
|
q = p + 1;
|
|
} else if(c == ',') {
|
|
*p = 0;
|
|
ntmp = strip_spaces(q);
|
|
q = p + 1;
|
|
#ifdef DEBUG
|
|
printf("%s\n", ntmp);
|
|
#endif
|
|
if(!ntmp) {
|
|
X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_NAME);
|
|
goto err;
|
|
}
|
|
X509V3_add_value(ntmp, NULL, &values);
|
|
}
|
|
break ;
|
|
|
|
case HDR_VALUE:
|
|
if(c == ',') {
|
|
state = HDR_NAME;
|
|
*p = 0;
|
|
vtmp = strip_spaces(q);
|
|
#ifdef DEBUG
|
|
printf("%s\n", ntmp);
|
|
#endif
|
|
if(!vtmp) {
|
|
X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_VALUE);
|
|
goto err;
|
|
}
|
|
X509V3_add_value(ntmp, vtmp, &values);
|
|
ntmp = NULL;
|
|
q = p + 1;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
if(state == HDR_VALUE) {
|
|
vtmp = strip_spaces(q);
|
|
#ifdef DEBUG
|
|
printf("%s=%s\n", ntmp, vtmp);
|
|
#endif
|
|
if(!vtmp) {
|
|
X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_VALUE);
|
|
goto err;
|
|
}
|
|
X509V3_add_value(ntmp, vtmp, &values);
|
|
} else {
|
|
ntmp = strip_spaces(q);
|
|
#ifdef DEBUG
|
|
printf("%s\n", ntmp);
|
|
#endif
|
|
if(!ntmp) {
|
|
X509V3err(X509V3_F_X509V3_PARSE_LIST, X509V3_R_INVALID_NULL_NAME);
|
|
goto err;
|
|
}
|
|
X509V3_add_value(ntmp, NULL, &values);
|
|
}
|
|
Free(linebuf);
|
|
return values;
|
|
|
|
err:
|
|
Free(linebuf);
|
|
sk_CONF_VALUE_pop_free(values, X509V3_conf_free);
|
|
return NULL;
|
|
|
|
}
|
|
|
|
/* Delete leading and trailing spaces from a string */
|
|
static char *strip_spaces(char *name)
|
|
{
|
|
char *p, *q;
|
|
/* Skip over leading spaces */
|
|
p = name;
|
|
while(*p && isspace((unsigned char)*p)) p++;
|
|
if(!*p) return NULL;
|
|
q = p + strlen(p) - 1;
|
|
while((q != p) && isspace((unsigned char)*q)) q--;
|
|
if(p != q) q[1] = 0;
|
|
if(!*p) return NULL;
|
|
return p;
|
|
}
|
|
|
|
/* hex string utilities */
|
|
|
|
/* Given a buffer of length 'len' return a Malloc'ed string with its
|
|
* hex representation
|
|
*/
|
|
|
|
char *hex_to_string(unsigned char *buffer, long len)
|
|
{
|
|
char *tmp, *q;
|
|
unsigned char *p;
|
|
int i;
|
|
static char hexdig[] = "0123456789ABCDEF";
|
|
if(!buffer || !len) return NULL;
|
|
if(!(tmp = Malloc(len * 3 + 1))) {
|
|
X509V3err(X509V3_F_HEX_TO_STRING,ERR_R_MALLOC_FAILURE);
|
|
return NULL;
|
|
}
|
|
q = tmp;
|
|
for(i = 0, p = buffer; i < len; i++,p++) {
|
|
*q++ = hexdig[(*p >> 4) & 0xf];
|
|
*q++ = hexdig[*p & 0xf];
|
|
*q++ = ':';
|
|
}
|
|
q[-1] = 0;
|
|
return tmp;
|
|
}
|
|
|
|
/* Give a string of hex digits convert to
|
|
* a buffer
|
|
*/
|
|
|
|
unsigned char *string_to_hex(char *str, long *len)
|
|
{
|
|
unsigned char *hexbuf, *q;
|
|
unsigned char ch, cl, *p;
|
|
if(!str) {
|
|
X509V3err(X509V3_F_STRING_TO_HEX,X509V3_R_INVALID_NULL_ARGUMENT);
|
|
return NULL;
|
|
}
|
|
if(!(hexbuf = Malloc(strlen(str) >> 1))) goto err;
|
|
for(p = (unsigned char *)str, q = hexbuf; *p;) {
|
|
ch = *p++;
|
|
if(ch == ':') continue;
|
|
cl = *p++;
|
|
if(!cl) {
|
|
X509V3err(X509V3_F_STRING_TO_HEX,X509V3_R_ODD_NUMBER_OF_DIGITS);
|
|
Free(hexbuf);
|
|
return NULL;
|
|
}
|
|
if(isupper(ch)) ch = tolower(ch);
|
|
if(isupper(cl)) cl = tolower(cl);
|
|
|
|
if((ch >= '0') && (ch <= '9')) ch -= '0';
|
|
else if ((ch >= 'a') && (ch <= 'f')) ch -= 'a' - 10;
|
|
else goto badhex;
|
|
|
|
if((cl >= '0') && (cl <= '9')) cl -= '0';
|
|
else if ((cl >= 'a') && (cl <= 'f')) cl -= 'a' - 10;
|
|
else goto badhex;
|
|
|
|
*q++ = (ch << 4) | cl;
|
|
}
|
|
|
|
if(len) *len = q - hexbuf;
|
|
|
|
return hexbuf;
|
|
|
|
err:
|
|
if(hexbuf) Free(hexbuf);
|
|
X509V3err(X509V3_F_STRING_TO_HEX,ERR_R_MALLOC_FAILURE);
|
|
return NULL;
|
|
|
|
badhex:
|
|
Free(hexbuf);
|
|
X509V3err(X509V3_F_STRING_TO_HEX,X509V3_R_ILLEGAL_HEX_DIGIT);
|
|
return NULL;
|
|
|
|
}
|
|
|
|
/* V2I name comparison function: returns zero if 'name' matches
|
|
* cmp or cmp.*
|
|
*/
|
|
|
|
int name_cmp(const char *name, const char *cmp)
|
|
{
|
|
int len, ret;
|
|
char c;
|
|
len = strlen(cmp);
|
|
if((ret = strncmp(name, cmp, len))) return ret;
|
|
c = name[len];
|
|
if(!c || (c=='.')) return 0;
|
|
return 1;
|
|
}
|