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openssl_backend_common.c
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/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Jakub Zelenka <[email protected]> |
+----------------------------------------------------------------------+
*/
#include "php_openssl_backend.h"
#include "zend_exceptions.h"
#include "ext/standard/md5.h" /* For make_digest_ex() */
#include "ext/standard/base64.h"
#ifdef PHP_WIN32
# include "win32/winutil.h"
#endif
/* Common */
#include <time.h>
#if (defined(PHP_WIN32) && defined(_MSC_VER))
#define timezone _timezone /* timezone is called _timezone in LibC */
#endif
/* openssl -> PHP "bridging" */
/* true global; readonly after module startup */
static char default_ssl_conf_filename[MAXPATHLEN];
void php_openssl_add_assoc_name_entry(zval * val, char * key, X509_NAME * name, int shortname)
{
zval *data;
zval subitem, tmp;
int i;
char *sname;
int nid;
X509_NAME_ENTRY * ne;
ASN1_STRING * str = NULL;
ASN1_OBJECT * obj;
if (key != NULL) {
array_init(&subitem);
} else {
ZVAL_COPY_VALUE(&subitem, val);
}
for (i = 0; i < X509_NAME_entry_count(name); i++) {
const unsigned char *to_add = NULL;
int to_add_len = 0;
unsigned char *to_add_buf = NULL;
ne = X509_NAME_get_entry(name, i);
obj = X509_NAME_ENTRY_get_object(ne);
nid = OBJ_obj2nid(obj);
if (shortname) {
sname = (char *) OBJ_nid2sn(nid);
} else {
sname = (char *) OBJ_nid2ln(nid);
}
str = X509_NAME_ENTRY_get_data(ne);
if (ASN1_STRING_type(str) != V_ASN1_UTF8STRING) {
/* ASN1_STRING_to_UTF8(3): The converted data is copied into a newly allocated buffer */
to_add_len = ASN1_STRING_to_UTF8(&to_add_buf, str);
to_add = to_add_buf;
} else {
/* ASN1_STRING_get0_data(3): Since this is an internal pointer it should not be freed or modified in any way */
to_add = ASN1_STRING_get0_data(str);
to_add_len = ASN1_STRING_length(str);
}
if (to_add_len != -1) {
if ((data = zend_hash_str_find(Z_ARRVAL(subitem), sname, strlen(sname))) != NULL) {
if (Z_TYPE_P(data) == IS_ARRAY) {
add_next_index_stringl(data, (const char *)to_add, to_add_len);
} else if (Z_TYPE_P(data) == IS_STRING) {
array_init(&tmp);
add_next_index_str(&tmp, zend_string_copy(Z_STR_P(data)));
add_next_index_stringl(&tmp, (const char *)to_add, to_add_len);
zend_hash_str_update(Z_ARRVAL(subitem), sname, strlen(sname), &tmp);
}
} else {
/* it might be better to expand it and pass zval from ZVAL_STRING
* to zend_symtable_str_update so we do not silently drop const
* but we need a test to cover this part first */
add_assoc_stringl(&subitem, sname, (char *)to_add, to_add_len);
}
} else {
php_openssl_store_errors();
}
if (to_add_buf != NULL) {
OPENSSL_free(to_add_buf);
}
}
if (key != NULL) {
zend_hash_str_update(Z_ARRVAL_P(val), key, strlen(key), &subitem);
}
}
void php_openssl_add_assoc_asn1_string(zval * val, char * key, ASN1_STRING * str)
{
add_assoc_stringl(val, key, (char *)str->data, str->length);
}
time_t php_openssl_asn1_time_to_time_t(ASN1_UTCTIME * timestr)
{
/*
* This is how the time string is formatted:
*
* snprintf(p, sizeof(p), "%02d%02d%02d%02d%02d%02dZ",ts->tm_year%100,
* ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
*/
time_t ret;
struct tm thetime;
char * strbuf;
char * thestr;
long gmadjust = 0;
size_t timestr_len;
if (ASN1_STRING_type(timestr) != V_ASN1_UTCTIME && ASN1_STRING_type(timestr) != V_ASN1_GENERALIZEDTIME) {
php_error_docref(NULL, E_WARNING, "Illegal ASN1 data type for timestamp");
return (time_t)-1;
}
timestr_len = (size_t)ASN1_STRING_length(timestr);
if (timestr_len != strlen((const char *)ASN1_STRING_get0_data(timestr))) {
php_error_docref(NULL, E_WARNING, "Illegal length in timestamp");
return (time_t)-1;
}
if (timestr_len < 13) {
php_error_docref(NULL, E_WARNING, "Unable to parse time string %s correctly", timestr->data);
return (time_t)-1;
}
if (ASN1_STRING_type(timestr) == V_ASN1_GENERALIZEDTIME && timestr_len < 15) {
php_error_docref(NULL, E_WARNING, "Unable to parse time string %s correctly", timestr->data);
return (time_t)-1;
}
strbuf = estrdup((const char *)ASN1_STRING_get0_data(timestr));
memset(&thetime, 0, sizeof(thetime));
/* we work backwards so that we can use atoi more easily */
thestr = strbuf + timestr_len - 3;
thetime.tm_sec = atoi(thestr);
*thestr = '\0';
thestr -= 2;
thetime.tm_min = atoi(thestr);
*thestr = '\0';
thestr -= 2;
thetime.tm_hour = atoi(thestr);
*thestr = '\0';
thestr -= 2;
thetime.tm_mday = atoi(thestr);
*thestr = '\0';
thestr -= 2;
thetime.tm_mon = atoi(thestr)-1;
*thestr = '\0';
if( ASN1_STRING_type(timestr) == V_ASN1_UTCTIME ) {
thestr -= 2;
thetime.tm_year = atoi(thestr);
if (thetime.tm_year < 68) {
thetime.tm_year += 100;
}
} else if( ASN1_STRING_type(timestr) == V_ASN1_GENERALIZEDTIME ) {
thestr -= 4;
thetime.tm_year = atoi(thestr) - 1900;
}
thetime.tm_isdst = -1;
ret = mktime(&thetime);
#ifdef HAVE_STRUCT_TM_TM_GMTOFF
gmadjust = thetime.tm_gmtoff;
#else
/*
* If correcting for daylight savings time, we set the adjustment to
* the value of timezone - 3600 seconds. Otherwise, we need to overcorrect and
* set the adjustment to the main timezone + 3600 seconds.
*/
gmadjust = -(thetime.tm_isdst ? (long)timezone - 3600 : (long)timezone);
#endif
ret += gmadjust;
efree(strbuf);
return ret;
}
int php_openssl_config_check_syntax(const char * section_label, const char * config_filename, const char * section, CONF *config)
{
X509V3_CTX ctx;
X509V3_set_ctx_test(&ctx);
X509V3_set_nconf(&ctx, config);
if (!X509V3_EXT_add_nconf(config, &ctx, (char *)section, NULL)) {
php_openssl_store_errors();
php_error_docref(NULL, E_WARNING, "Error loading %s section %s of %s",
section_label,
section,
config_filename);
return FAILURE;
}
return SUCCESS;
}
char *php_openssl_conf_get_string(CONF *conf, const char *group, const char *name)
{
/* OpenSSL reports an error if a configuration value is not found.
* However, we don't want to generate errors for optional configuration. */
ERR_set_mark();
char *str = NCONF_get_string(conf, group, name);
ERR_pop_to_mark();
return str;
}
long php_openssl_conf_get_number(CONF *conf, const char *group, const char *name)
{
/* Same here, ignore errors. */
long res = 0;
ERR_set_mark();
NCONF_get_number(conf, group, name, &res);
ERR_pop_to_mark();
return res;
}
int php_openssl_add_oid_section(struct php_x509_request * req)
{
char * str;
STACK_OF(CONF_VALUE) * sktmp;
CONF_VALUE * cnf;
int i;
str = php_openssl_conf_get_string(req->req_config, NULL, "oid_section");
if (str == NULL) {
return SUCCESS;
}
sktmp = NCONF_get_section(req->req_config, str);
if (sktmp == NULL) {
php_openssl_store_errors();
php_error_docref(NULL, E_WARNING, "Problem loading oid section %s", str);
return FAILURE;
}
for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
cnf = sk_CONF_VALUE_value(sktmp, i);
if (OBJ_sn2nid(cnf->name) == NID_undef && OBJ_ln2nid(cnf->name) == NID_undef &&
OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
php_openssl_store_errors();
php_error_docref(NULL, E_WARNING, "Problem creating object %s=%s", cnf->name, cnf->value);
return FAILURE;
}
}
return SUCCESS;
}
int php_openssl_spki_cleanup(const char *src, char *dest)
{
int removed = 0;
while (*src) {
if (*src != '\n' && *src != '\r') {
*dest++ = *src;
} else {
++removed;
}
++src;
}
*dest = 0;
return removed;
}
int php_openssl_parse_config(struct php_x509_request * req, zval * optional_args)
{
char * str, path[MAXPATHLEN];
zval * item;
SET_OPTIONAL_STRING_ARG("config", req->config_filename, default_ssl_conf_filename);
SET_OPTIONAL_STRING_ARG("config_section_name", req->section_name, "req");
req->global_config = NCONF_new(NULL);
if (!NCONF_load(req->global_config, default_ssl_conf_filename, NULL)) {
php_openssl_store_errors();
}
req->req_config = NCONF_new(NULL);
if (!NCONF_load(req->req_config, req->config_filename, NULL)) {
return FAILURE;
}
/* read in the oids */
str = php_openssl_conf_get_string(req->req_config, NULL, "oid_file");
if (str != NULL && php_openssl_check_path_ex(str, strlen(str), path, 0, false, false, "oid_file")) {
BIO *oid_bio = BIO_new_file(path, PHP_OPENSSL_BIO_MODE_R(PKCS7_BINARY));
if (oid_bio) {
OBJ_create_objects(oid_bio);
BIO_free(oid_bio);
php_openssl_store_errors();
}
}
if (php_openssl_add_oid_section(req) == FAILURE) {
return FAILURE;
}
SET_OPTIONAL_STRING_ARG("digest_alg", req->digest_name,
php_openssl_conf_get_string(req->req_config, req->section_name, "default_md"));
SET_OPTIONAL_STRING_ARG("x509_extensions", req->extensions_section,
php_openssl_conf_get_string(req->req_config, req->section_name, "x509_extensions"));
SET_OPTIONAL_STRING_ARG("req_extensions", req->request_extensions_section,
php_openssl_conf_get_string(req->req_config, req->section_name, "req_extensions"));
SET_OPTIONAL_LONG_ARG("private_key_bits", req->priv_key_bits,
php_openssl_conf_get_number(req->req_config, req->section_name, "default_bits"));
SET_OPTIONAL_LONG_ARG("private_key_type", req->priv_key_type, OPENSSL_KEYTYPE_DEFAULT);
if (optional_args && (item = zend_hash_str_find(Z_ARRVAL_P(optional_args), "encrypt_key", sizeof("encrypt_key")-1)) != NULL) {
req->priv_key_encrypt = Z_TYPE_P(item) == IS_TRUE ? 1 : 0;
} else {
str = php_openssl_conf_get_string(req->req_config, req->section_name, "encrypt_rsa_key");
if (str == NULL) {
str = php_openssl_conf_get_string(req->req_config, req->section_name, "encrypt_key");
}
if (str != NULL && strcmp(str, "no") == 0) {
req->priv_key_encrypt = 0;
} else {
req->priv_key_encrypt = 1;
}
}
if (req->priv_key_encrypt &&
optional_args &&
(item = zend_hash_str_find(Z_ARRVAL_P(optional_args), "encrypt_key_cipher", sizeof("encrypt_key_cipher")-1)) != NULL &&
Z_TYPE_P(item) == IS_LONG
) {
zend_long cipher_algo = Z_LVAL_P(item);
const EVP_CIPHER* cipher = php_openssl_get_evp_cipher_from_algo(cipher_algo);
if (cipher == NULL) {
php_error_docref(NULL, E_WARNING, "Unknown cipher algorithm for private key");
return FAILURE;
} else {
req->priv_key_encrypt_cipher = cipher;
}
} else {
req->priv_key_encrypt_cipher = NULL;
}
/* digest alg */
if (req->digest_name == NULL) {
req->digest_name = php_openssl_conf_get_string(req->req_config, req->section_name, "default_md");
}
if (req->digest_name != NULL) {
if (strcmp(req->digest_name, "null") == 0) {
req->digest = req->md_alg = EVP_md_null();
} else {
req->digest = req->md_alg = EVP_get_digestbyname(req->digest_name);
}
}
if (req->md_alg == NULL) {
req->md_alg = req->digest = EVP_sha1();
php_openssl_store_errors();
}
PHP_SSL_CONFIG_SYNTAX_CHECK(extensions_section);
#ifdef HAVE_EVP_PKEY_EC
/* set the ec group curve name */
req->curve_name = NID_undef;
if (optional_args && (item = zend_hash_str_find(Z_ARRVAL_P(optional_args), "curve_name", sizeof("curve_name")-1)) != NULL
&& Z_TYPE_P(item) == IS_STRING) {
req->curve_name = OBJ_sn2nid(Z_STRVAL_P(item));
if (req->curve_name == NID_undef) {
php_error_docref(NULL, E_WARNING, "Unknown elliptic curve (short) name %s", Z_STRVAL_P(item));
return FAILURE;
}
}
#endif
/* set the string mask */
str = php_openssl_conf_get_string(req->req_config, req->section_name, "string_mask");
if (str != NULL && !ASN1_STRING_set_default_mask_asc(str)) {
php_error_docref(NULL, E_WARNING, "Invalid global string mask setting %s", str);
return FAILURE;
}
PHP_SSL_CONFIG_SYNTAX_CHECK(request_extensions_section);
return SUCCESS;
}
void php_openssl_dispose_config(struct php_x509_request * req)
{
if (req->priv_key) {
EVP_PKEY_free(req->priv_key);
req->priv_key = NULL;
}
if (req->global_config) {
NCONF_free(req->global_config);
req->global_config = NULL;
}
if (req->req_config) {
NCONF_free(req->req_config);
req->req_config = NULL;
}
}
zend_result php_openssl_load_rand_file(const char * file, int *egdsocket, int *seeded)
{
char buffer[MAXPATHLEN];
*egdsocket = 0;
*seeded = 0;
if (file == NULL) {
file = RAND_file_name(buffer, sizeof(buffer));
#ifdef HAVE_RAND_EGD
} else if (RAND_egd(file) > 0) {
/* if the given filename is an EGD socket, don't
* write anything back to it */
*egdsocket = 1;
return SUCCESS;
#endif
}
if (file == NULL || !RAND_load_file(file, -1)) {
if (RAND_status() == 0) {
php_openssl_store_errors();
php_error_docref(NULL, E_WARNING, "Unable to load random state; not enough random data!");
return FAILURE;
}
return FAILURE;
}
*seeded = 1;
return SUCCESS;
}
zend_result php_openssl_write_rand_file(const char * file, int egdsocket, int seeded)
{
char buffer[MAXPATHLEN];
if (egdsocket || !seeded) {
/* if we did not manage to read the seed file, we should not write
* a low-entropy seed file back */
return FAILURE;
}
if (file == NULL) {
file = RAND_file_name(buffer, sizeof(buffer));
}
if (file == NULL || !RAND_write_file(file)) {
php_openssl_store_errors();
php_error_docref(NULL, E_WARNING, "Unable to write random state");
return FAILURE;
}
return SUCCESS;
}
EVP_MD * php_openssl_get_evp_md_from_algo(zend_long algo) {
EVP_MD *mdtype;
switch (algo) {
case OPENSSL_ALGO_SHA1:
mdtype = (EVP_MD *) EVP_sha1();
break;
case OPENSSL_ALGO_MD5:
mdtype = (EVP_MD *) EVP_md5();
break;
#ifndef OPENSSL_NO_MD4
case OPENSSL_ALGO_MD4:
mdtype = (EVP_MD *) EVP_md4();
break;
#endif
#ifndef OPENSSL_NO_MD2
case OPENSSL_ALGO_MD2:
mdtype = (EVP_MD *) EVP_md2();
break;
#endif
case OPENSSL_ALGO_SHA224:
mdtype = (EVP_MD *) EVP_sha224();
break;
case OPENSSL_ALGO_SHA256:
mdtype = (EVP_MD *) EVP_sha256();
break;
case OPENSSL_ALGO_SHA384:
mdtype = (EVP_MD *) EVP_sha384();
break;
case OPENSSL_ALGO_SHA512:
mdtype = (EVP_MD *) EVP_sha512();
break;
#ifndef OPENSSL_NO_RMD160
case OPENSSL_ALGO_RMD160:
mdtype = (EVP_MD *) EVP_ripemd160();
break;
#endif
default:
return NULL;
break;
}
return mdtype;
}
const EVP_CIPHER * php_openssl_get_evp_cipher_from_algo(zend_long algo) {
switch (algo) {
#ifndef OPENSSL_NO_RC2
case PHP_OPENSSL_CIPHER_RC2_40:
return EVP_rc2_40_cbc();
break;
case PHP_OPENSSL_CIPHER_RC2_64:
return EVP_rc2_64_cbc();
break;
case PHP_OPENSSL_CIPHER_RC2_128:
return EVP_rc2_cbc();
break;
#endif
#ifndef OPENSSL_NO_DES
case PHP_OPENSSL_CIPHER_DES:
return EVP_des_cbc();
break;
case PHP_OPENSSL_CIPHER_3DES:
return EVP_des_ede3_cbc();
break;
#endif
#ifndef OPENSSL_NO_AES
case PHP_OPENSSL_CIPHER_AES_128_CBC:
return EVP_aes_128_cbc();
break;
case PHP_OPENSSL_CIPHER_AES_192_CBC:
return EVP_aes_192_cbc();
break;
case PHP_OPENSSL_CIPHER_AES_256_CBC:
return EVP_aes_256_cbc();
break;
#endif
default:
return NULL;
break;
}
}
void php_openssl_backend_init(void)
{
#ifdef LIBRESSL_VERSION_NUMBER
OPENSSL_config(NULL);
SSL_library_init();
OpenSSL_add_all_ciphers();
OpenSSL_add_all_digests();
OpenSSL_add_all_algorithms();
SSL_load_error_strings();
#else
#if PHP_OPENSSL_API_VERSION >= 0x30000 && defined(LOAD_OPENSSL_LEGACY_PROVIDER)
OSSL_PROVIDER_load(NULL, "legacy");
OSSL_PROVIDER_load(NULL, "default");
#endif
OPENSSL_init_ssl(OPENSSL_INIT_LOAD_CONFIG, NULL);
#endif
/* Determine default SSL configuration file */
char *config_filename = getenv("OPENSSL_CONF");
if (config_filename == NULL) {
config_filename = getenv("SSLEAY_CONF");
}
/* default to 'openssl.cnf' if no environment variable is set */
if (config_filename == NULL) {
snprintf(default_ssl_conf_filename, sizeof(default_ssl_conf_filename), "%s/%s",
X509_get_default_cert_area(),
"openssl.cnf");
} else {
strlcpy(default_ssl_conf_filename, config_filename, sizeof(default_ssl_conf_filename));
}
}
const char *php_openssl_get_conf_filename(void)
{
return default_ssl_conf_filename;
}
void php_openssl_set_cert_locations(zval *return_value)
{
add_assoc_string(return_value, "default_cert_file", (char *) X509_get_default_cert_file());
add_assoc_string(return_value, "default_cert_file_env", (char *) X509_get_default_cert_file_env());
add_assoc_string(return_value, "default_cert_dir", (char *) X509_get_default_cert_dir());
add_assoc_string(return_value, "default_cert_dir_env", (char *) X509_get_default_cert_dir_env());
add_assoc_string(return_value, "default_private_dir", (char *) X509_get_default_private_dir());
add_assoc_string(return_value, "default_default_cert_area", (char *) X509_get_default_cert_area());
add_assoc_string(return_value, "ini_cafile",
zend_ini_string("openssl.cafile", sizeof("openssl.cafile")-1, 0));
add_assoc_string(return_value, "ini_capath",
zend_ini_string("openssl.capath", sizeof("openssl.capath")-1, 0));
}
X509 *php_openssl_x509_from_str(
zend_string *cert_str, uint32_t arg_num, bool is_from_array, const char *option_name) {
X509 *cert = NULL;
char cert_path[MAXPATHLEN];
BIO *in;
if (ZSTR_LEN(cert_str) > 7 && memcmp(ZSTR_VAL(cert_str), "file://", sizeof("file://") - 1) == 0) {
if (!php_openssl_check_path_str_ex(cert_str, cert_path, arg_num, true, is_from_array, option_name)) {
return NULL;
}
in = BIO_new_file(cert_path, PHP_OPENSSL_BIO_MODE_R(PKCS7_BINARY));
if (in == NULL) {
php_openssl_store_errors();
return NULL;
}
cert = PEM_read_bio_X509(in, NULL, NULL, NULL);
} else {
in = BIO_new_mem_buf(ZSTR_VAL(cert_str), (int) ZSTR_LEN(cert_str));
if (in == NULL) {
php_openssl_store_errors();
return NULL;
}
#ifdef TYPEDEF_D2I_OF
cert = (X509 *) PEM_ASN1_read_bio((d2i_of_void *)d2i_X509, PEM_STRING_X509, in, NULL, NULL, NULL);
#else
cert = (X509 *) PEM_ASN1_read_bio((char *(*)())d2i_X509, PEM_STRING_X509, in, NULL, NULL, NULL);
#endif
}
if (!BIO_free(in)) {
php_openssl_store_errors();
}
if (cert == NULL) {
php_openssl_store_errors();
return NULL;
}
return cert;
}
/* {{{ php_openssl_x509_from_param
Given a parameter, extract it into an X509 object.
The parameter can be:
. X509 object created using openssl_read_x509()
. a path to that cert if it starts with file://
. the cert data otherwise
*/
X509 *php_openssl_x509_from_param(
zend_object *cert_obj, zend_string *cert_str, uint32_t arg_num) {
if (cert_obj) {
return php_openssl_certificate_from_obj(cert_obj)->x509;
}
ZEND_ASSERT(cert_str);
return php_openssl_x509_from_str(cert_str, arg_num, false, NULL);
}
X509 *php_openssl_x509_from_zval(
zval *val, bool *free_cert, uint32_t arg_num, bool is_from_array, const char *option_name)
{
if (php_openssl_is_certificate_ce(val)) {
*free_cert = 0;
return php_openssl_certificate_from_obj(Z_OBJ_P(val))->x509;
}
*free_cert = 1;
zend_string *str = zval_try_get_string(val);
if (str == NULL) {
return NULL;
}
X509 *cert = php_openssl_x509_from_str(str, arg_num, is_from_array, option_name);
zend_string_release(str);
return cert;
}
zend_string* php_openssl_x509_fingerprint(X509 *peer, const char *method, bool raw)
{
unsigned char md[EVP_MAX_MD_SIZE];
const EVP_MD *mdtype;
unsigned int n;
zend_string *ret;
if (!(mdtype = EVP_get_digestbyname(method))) {
php_error_docref(NULL, E_WARNING, "Unknown digest algorithm");
return NULL;
} else if (!X509_digest(peer, mdtype, md, &n)) {
php_openssl_store_errors();
php_error_docref(NULL, E_ERROR, "Could not generate signature");
return NULL;
}
if (raw) {
ret = zend_string_init((char*)md, n, 0);
} else {
ret = zend_string_alloc(n * 2, 0);
make_digest_ex(ZSTR_VAL(ret), md, n);
ZSTR_VAL(ret)[n * 2] = '\0';
}
return ret;
}
/* Special handling of subjectAltName, see CVE-2013-4073
* Christian Heimes
*/
int openssl_x509v3_subjectAltName(BIO *bio, X509_EXTENSION *extension)
{
GENERAL_NAMES *names;
const X509V3_EXT_METHOD *method = NULL;
ASN1_OCTET_STRING *extension_data;
long i, length, num;
const unsigned char *p;
method = X509V3_EXT_get(extension);
if (method == NULL) {
return -1;
}
extension_data = X509_EXTENSION_get_data(extension);
p = extension_data->data;
length = extension_data->length;
if (method->it) {
names = (GENERAL_NAMES*) (ASN1_item_d2i(NULL, &p, length,
ASN1_ITEM_ptr(method->it)));
} else {
names = (GENERAL_NAMES*) (method->d2i(NULL, &p, length));
}
if (names == NULL) {
php_openssl_store_errors();
return -1;
}
num = sk_GENERAL_NAME_num(names);
for (i = 0; i < num; i++) {
GENERAL_NAME *name;
ASN1_STRING *as;
name = sk_GENERAL_NAME_value(names, i);
switch (name->type) {
case GEN_EMAIL:
BIO_puts(bio, "email:");
as = name->d.rfc822Name;
BIO_write(bio, ASN1_STRING_get0_data(as),
ASN1_STRING_length(as));
break;
case GEN_DNS:
BIO_puts(bio, "DNS:");
as = name->d.dNSName;
BIO_write(bio, ASN1_STRING_get0_data(as),
ASN1_STRING_length(as));
break;
case GEN_URI:
BIO_puts(bio, "URI:");
as = name->d.uniformResourceIdentifier;
BIO_write(bio, ASN1_STRING_get0_data(as),
ASN1_STRING_length(as));
break;
default:
/* use builtin print for GEN_OTHERNAME, GEN_X400,
* GEN_EDIPARTY, GEN_DIRNAME, GEN_IPADD and GEN_RID
*/
GENERAL_NAME_print(bio, name);
}
/* trailing ', ' except for last element */
if (i < (num - 1)) {
BIO_puts(bio, ", ");
}
}
sk_GENERAL_NAME_pop_free(names, GENERAL_NAME_free);
return 0;
}
STACK_OF(X509) *php_openssl_load_all_certs_from_file(
char *cert_file, size_t cert_file_len, uint32_t arg_num)
{
STACK_OF(X509_INFO) *sk=NULL;
STACK_OF(X509) *stack=NULL, *ret=NULL;
BIO *in=NULL;
X509_INFO *xi;
char cert_path[MAXPATHLEN];
if(!(stack = sk_X509_new_null())) {
php_openssl_store_errors();
php_error_docref(NULL, E_ERROR, "Memory allocation failure");
goto end;
}
if (!php_openssl_check_path(cert_file, cert_file_len, cert_path, arg_num)) {
sk_X509_free(stack);
goto end;
}
if (!(in = BIO_new_file(cert_path, PHP_OPENSSL_BIO_MODE_R(PKCS7_BINARY)))) {
php_openssl_store_errors();
php_error_docref(NULL, E_WARNING, "Error opening the file, %s", cert_path);
sk_X509_free(stack);
goto end;
}
/* This loads from a file, a stack of x509/crl/pkey sets */
if (!(sk = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL))) {
php_openssl_store_errors();
php_error_docref(NULL, E_WARNING, "Error reading the file, %s", cert_path);
sk_X509_free(stack);
goto end;
}
/* scan over it and pull out the certs */
while (sk_X509_INFO_num(sk)) {
xi=sk_X509_INFO_shift(sk);
if (xi->x509 != NULL) {
sk_X509_push(stack,xi->x509);
xi->x509=NULL;
}
X509_INFO_free(xi);
}
if (!sk_X509_num(stack)) {
php_error_docref(NULL, E_WARNING, "No certificates in file, %s", cert_path);
sk_X509_free(stack);
goto end;
}
ret = stack;
end:
BIO_free(in);
sk_X509_INFO_free(sk);
return ret;
}
int php_openssl_check_cert(X509_STORE *ctx, X509 *x, STACK_OF(X509) *untrustedchain, int purpose)
{
int ret=0;
X509_STORE_CTX *csc;
csc = X509_STORE_CTX_new();
if (csc == NULL) {
php_openssl_store_errors();
php_error_docref(NULL, E_ERROR, "Memory allocation failure");
return 0;
}
if (!X509_STORE_CTX_init(csc, ctx, x, untrustedchain)) {
php_openssl_store_errors();
php_error_docref(NULL, E_WARNING, "Certificate store initialization failed");
return 0;
}
if (purpose >= 0 && !X509_STORE_CTX_set_purpose(csc, purpose)) {
php_openssl_store_errors();
}
ret = X509_verify_cert(csc);
if (ret < 0) {
php_openssl_store_errors();
}
X509_STORE_CTX_free(csc);
return ret;
}
/* {{{ php_openssl_setup_verify
* calist is an array containing file and directory names. create a
* certificate store and add those certs to it for use in verification.
*/
X509_STORE *php_openssl_setup_verify(zval *calist, uint32_t arg_num)
{
X509_STORE *store;
X509_LOOKUP * dir_lookup, * file_lookup;
int ndirs = 0, nfiles = 0;
zval * item;
zend_stat_t sb = {0};
char file_path[MAXPATHLEN];
store = X509_STORE_new();
if (store == NULL) {
php_openssl_store_errors();
return NULL;
}
if (calist && (Z_TYPE_P(calist) == IS_ARRAY)) {
ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(calist), item) {
zend_string *str = zval_try_get_string(item);
if (UNEXPECTED(!str)) {
return NULL;
}
if (!php_openssl_check_path_str_ex(str, file_path, arg_num, false, true, NULL)) {
zend_string_release(str);
continue;
}
zend_string_release(str);
if (VCWD_STAT(file_path, &sb) == -1) {
php_error_docref(NULL, E_WARNING, "Unable to stat %s", file_path);
continue;
}
if ((sb.st_mode & S_IFREG) == S_IFREG) {
file_lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
if (file_lookup == NULL || !X509_LOOKUP_load_file(file_lookup, file_path, X509_FILETYPE_PEM)) {
php_openssl_store_errors();
php_error_docref(NULL, E_WARNING, "Error loading file %s", file_path);
} else {
nfiles++;
}
file_lookup = NULL;
} else {
dir_lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
if (dir_lookup == NULL || !X509_LOOKUP_add_dir(dir_lookup, file_path, X509_FILETYPE_PEM)) {
php_openssl_store_errors();
php_error_docref(NULL, E_WARNING, "Error loading directory %s", file_path);
} else {
ndirs++;
}
dir_lookup = NULL;
}
} ZEND_HASH_FOREACH_END();
}
if (nfiles == 0) {
file_lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
if (file_lookup == NULL || !X509_LOOKUP_load_file(file_lookup, NULL, X509_FILETYPE_DEFAULT)) {
php_openssl_store_errors();
}
}
if (ndirs == 0) {
dir_lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
if (dir_lookup == NULL || !X509_LOOKUP_add_dir(dir_lookup, NULL, X509_FILETYPE_DEFAULT)) {
php_openssl_store_errors();
}
}
return store;
}
/* Pop all X509 from Stack and free them, free the stack afterwards */
void php_openssl_sk_X509_free(STACK_OF(X509) * sk)
{
for (;;) {
X509* x = sk_X509_pop(sk);
if (!x) break;
X509_free(x);
}
sk_X509_free(sk);
}
STACK_OF(X509) *php_openssl_array_to_X509_sk(zval * zcerts, uint32_t arg_num, const char *option_name)
{
zval * zcertval;
STACK_OF(X509) * sk = NULL;
X509 * cert;
bool free_cert;
sk = sk_X509_new_null();
/* get certs */
if (Z_TYPE_P(zcerts) == IS_ARRAY) {
ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(zcerts), zcertval) {
cert = php_openssl_x509_from_zval(zcertval, &free_cert, arg_num, true, option_name);
if (cert == NULL) {
// TODO Add Warning?
goto clean_exit;
}
if (!free_cert) {
cert = X509_dup(cert);
if (cert == NULL) {
php_openssl_store_errors();
goto clean_exit;
}
}
sk_X509_push(sk, cert);
} ZEND_HASH_FOREACH_END();
} else {
/* a single certificate */
cert = php_openssl_x509_from_zval(zcerts, &free_cert, arg_num, false, option_name);
if (cert == NULL) {
// TODO Add Warning?
goto clean_exit;
}
if (!free_cert) {
cert = X509_dup(cert);
if (cert == NULL) {
php_openssl_store_errors();