ref: 009439541d2c6e8af2596f8fb1b4df85861fd212
dir: /third_party/boringssl/src/crypto/x509/x509_v3.c/
/* 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 <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/obj.h>
#include <openssl/stack.h>
#include <openssl/x509.h>
#include "internal.h"
int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x) {
if (x == NULL) {
return 0;
}
return (int)sk_X509_EXTENSION_num(x);
}
int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x, int nid,
int lastpos) {
const ASN1_OBJECT *obj = OBJ_nid2obj(nid);
if (obj == NULL) {
return -1;
}
return X509v3_get_ext_by_OBJ(x, obj, lastpos);
}
int X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) *sk,
const ASN1_OBJECT *obj, int lastpos) {
if (sk == NULL) {
return -1;
}
lastpos++;
if (lastpos < 0) {
lastpos = 0;
}
int n = (int)sk_X509_EXTENSION_num(sk);
for (; lastpos < n; lastpos++) {
const X509_EXTENSION *ex = sk_X509_EXTENSION_value(sk, lastpos);
if (OBJ_cmp(ex->object, obj) == 0) {
return lastpos;
}
}
return -1;
}
int X509v3_get_ext_by_critical(const STACK_OF(X509_EXTENSION) *sk, int crit,
int lastpos) {
if (sk == NULL) {
return -1;
}
lastpos++;
if (lastpos < 0) {
lastpos = 0;
}
crit = !!crit;
int n = (int)sk_X509_EXTENSION_num(sk);
for (; lastpos < n; lastpos++) {
const X509_EXTENSION *ex = sk_X509_EXTENSION_value(sk, lastpos);
if (X509_EXTENSION_get_critical(ex) == crit) {
return lastpos;
}
}
return -1;
}
X509_EXTENSION *X509v3_get_ext(const STACK_OF(X509_EXTENSION) *x, int loc) {
if (x == NULL || loc < 0 || sk_X509_EXTENSION_num(x) <= (size_t)loc) {
return NULL;
} else {
return sk_X509_EXTENSION_value(x, loc);
}
}
X509_EXTENSION *X509v3_delete_ext(STACK_OF(X509_EXTENSION) *x, int loc) {
X509_EXTENSION *ret;
if (x == NULL || loc < 0 || sk_X509_EXTENSION_num(x) <= (size_t)loc) {
return NULL;
}
ret = sk_X509_EXTENSION_delete(x, loc);
return ret;
}
STACK_OF(X509_EXTENSION) *X509v3_add_ext(STACK_OF(X509_EXTENSION) **x,
const X509_EXTENSION *ex, int loc) {
X509_EXTENSION *new_ex = NULL;
STACK_OF(X509_EXTENSION) *sk = NULL;
int free_sk = 0;
if (x == NULL) {
OPENSSL_PUT_ERROR(X509, ERR_R_PASSED_NULL_PARAMETER);
goto err;
}
if (*x == NULL) {
if ((sk = sk_X509_EXTENSION_new_null()) == NULL) {
goto err;
}
free_sk = 1;
} else {
sk = *x;
}
int n = (int)sk_X509_EXTENSION_num(sk);
if (loc > n) {
loc = n;
} else if (loc < 0) {
loc = n;
}
if ((new_ex = X509_EXTENSION_dup(ex)) == NULL) {
goto err;
}
if (!sk_X509_EXTENSION_insert(sk, new_ex, loc)) {
goto err;
}
if (*x == NULL) {
*x = sk;
}
return sk;
err:
X509_EXTENSION_free(new_ex);
if (free_sk) {
sk_X509_EXTENSION_free(sk);
}
return NULL;
}
X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex, int nid,
int crit,
const ASN1_OCTET_STRING *data) {
const ASN1_OBJECT *obj;
X509_EXTENSION *ret;
obj = OBJ_nid2obj(nid);
if (obj == NULL) {
OPENSSL_PUT_ERROR(X509, X509_R_UNKNOWN_NID);
return NULL;
}
ret = X509_EXTENSION_create_by_OBJ(ex, obj, crit, data);
return ret;
}
X509_EXTENSION *X509_EXTENSION_create_by_OBJ(X509_EXTENSION **ex,
const ASN1_OBJECT *obj, int crit,
const ASN1_OCTET_STRING *data) {
X509_EXTENSION *ret;
if ((ex == NULL) || (*ex == NULL)) {
if ((ret = X509_EXTENSION_new()) == NULL) {
return NULL;
}
} else {
ret = *ex;
}
if (!X509_EXTENSION_set_object(ret, obj)) {
goto err;
}
if (!X509_EXTENSION_set_critical(ret, crit)) {
goto err;
}
if (!X509_EXTENSION_set_data(ret, data)) {
goto err;
}
if ((ex != NULL) && (*ex == NULL)) {
*ex = ret;
}
return ret;
err:
if ((ex == NULL) || (ret != *ex)) {
X509_EXTENSION_free(ret);
}
return NULL;
}
int X509_EXTENSION_set_object(X509_EXTENSION *ex, const ASN1_OBJECT *obj) {
if ((ex == NULL) || (obj == NULL)) {
return 0;
}
ASN1_OBJECT_free(ex->object);
ex->object = OBJ_dup(obj);
return ex->object != NULL;
}
int X509_EXTENSION_set_critical(X509_EXTENSION *ex, int crit) {
if (ex == NULL) {
return 0;
}
// The critical field is DEFAULT FALSE, so non-critical extensions should omit
// the value.
ex->critical = crit ? ASN1_BOOLEAN_TRUE : ASN1_BOOLEAN_NONE;
return 1;
}
int X509_EXTENSION_set_data(X509_EXTENSION *ex, const ASN1_OCTET_STRING *data) {
int i;
if (ex == NULL) {
return 0;
}
i = ASN1_OCTET_STRING_set(ex->value, data->data, data->length);
if (!i) {
return 0;
}
return 1;
}
ASN1_OBJECT *X509_EXTENSION_get_object(const X509_EXTENSION *ex) {
if (ex == NULL) {
return NULL;
}
return ex->object;
}
ASN1_OCTET_STRING *X509_EXTENSION_get_data(const X509_EXTENSION *ex) {
if (ex == NULL) {
return NULL;
}
return ex->value;
}
int X509_EXTENSION_get_critical(const X509_EXTENSION *ex) {
if (ex == NULL) {
return 0;
}
if (ex->critical > 0) {
return 1;
}
return 0;
}