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openssl.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: Stig Venaas <[email protected]> |
| Wez Furlong <[email protected]> |
| Sascha Kettler <[email protected]> |
| Pierre-Alain Joye <[email protected]> |
| Marc Delling <[email protected]> (PKCS12 functions) |
| Jakub Zelenka <[email protected]> |
| Eliot Lear <[email protected]> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "php.h"
#include "php_ini.h"
#include "php_openssl.h"
#include "zend_attributes.h"
#include "zend_exceptions.h"
/* PHP Includes */
#include "ext/standard/file.h"
#include "ext/standard/info.h"
#include "ext/standard/php_fopen_wrappers.h"
#include "ext/standard/md5.h" /* For make_digest_ex() */
#include "ext/standard/base64.h"
#ifdef PHP_WIN32
# include "win32/winutil.h"
#endif
/* OpenSSL includes */
#include <openssl/evp.h>
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/dsa.h>
#include <openssl/dh.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/crypto.h>
#include <openssl/pem.h>
#include <openssl/err.h>
#include <openssl/conf.h>
#include <openssl/rand.h>
#include <openssl/ssl.h>
#include <openssl/pkcs12.h>
#include <openssl/cms.h>
#if PHP_OPENSSL_API_VERSION >= 0x30000
#include <openssl/core_names.h>
#include <openssl/param_build.h>
#include <openssl/provider.h>
#endif
#if defined(LIBRESSL_VERSION_NUMBER) && !defined(OPENSSL_NO_ENGINE)
#include <openssl/engine.h>
#endif
/* Common */
#include <time.h>
#if (defined(PHP_WIN32) && defined(_MSC_VER) && _MSC_VER >= 1900)
#define timezone _timezone /* timezone is called _timezone in LibC */
#endif
#define MIN_KEY_LENGTH 384
/* constants used in ext/phar/util.c, keep in sync */
#define OPENSSL_ALGO_SHA1 1
#define OPENSSL_ALGO_MD5 2
#ifndef OPENSSL_NO_MD4
#define OPENSSL_ALGO_MD4 3
#endif
#ifndef OPENSSL_NO_MD2
#define OPENSSL_ALGO_MD2 4
#endif
#if PHP_OPENSSL_API_VERSION < 0x10100
#define OPENSSL_ALGO_DSS1 5
#endif
#define OPENSSL_ALGO_SHA224 6
#define OPENSSL_ALGO_SHA256 7
#define OPENSSL_ALGO_SHA384 8
#define OPENSSL_ALGO_SHA512 9
#ifndef OPENSSL_NO_RMD160
#define OPENSSL_ALGO_RMD160 10
#endif
#define DEBUG_SMIME 0
#if !defined(OPENSSL_NO_EC) && defined(EVP_PKEY_EC)
#define HAVE_EVP_PKEY_EC 1
/* the OPENSSL_EC_EXPLICIT_CURVE value was added
* in OpenSSL 1.1.0; previous versions should
* use 0 instead.
*/
#ifndef OPENSSL_EC_EXPLICIT_CURVE
#define OPENSSL_EC_EXPLICIT_CURVE 0x000
#endif
#endif
ZEND_DECLARE_MODULE_GLOBALS(openssl)
/* FIXME: Use the openssl constants instead of
* enum. It is now impossible to match real values
* against php constants. Also sorry to break the
* enum principles here, BC...
*/
enum php_openssl_key_type {
OPENSSL_KEYTYPE_RSA,
OPENSSL_KEYTYPE_DSA,
OPENSSL_KEYTYPE_DH,
OPENSSL_KEYTYPE_DEFAULT = OPENSSL_KEYTYPE_RSA,
#ifdef HAVE_EVP_PKEY_EC
OPENSSL_KEYTYPE_EC = OPENSSL_KEYTYPE_DH +1,
#endif
#if PHP_OPENSSL_API_VERSION >= 0x30000
OPENSSL_KEYTYPE_X25519 = OPENSSL_KEYTYPE_DH +2,
OPENSSL_KEYTYPE_ED25519 = OPENSSL_KEYTYPE_DH +3,
OPENSSL_KEYTYPE_X448 = OPENSSL_KEYTYPE_DH +4,
OPENSSL_KEYTYPE_ED448 = OPENSSL_KEYTYPE_DH +5,
#endif
};
enum php_openssl_cipher_type {
PHP_OPENSSL_CIPHER_RC2_40,
PHP_OPENSSL_CIPHER_RC2_128,
PHP_OPENSSL_CIPHER_RC2_64,
PHP_OPENSSL_CIPHER_DES,
PHP_OPENSSL_CIPHER_3DES,
PHP_OPENSSL_CIPHER_AES_128_CBC,
PHP_OPENSSL_CIPHER_AES_192_CBC,
PHP_OPENSSL_CIPHER_AES_256_CBC,
PHP_OPENSSL_CIPHER_DEFAULT = PHP_OPENSSL_CIPHER_AES_128_CBC
};
/* Add some encoding rules. This is normally handled through filters
* in the OpenSSL code, but we will do that part as if we were one
* of the OpenSSL binaries along the lines of -outform {DER|CMS|PEM}
*/
enum php_openssl_encoding {
ENCODING_DER,
ENCODING_SMIME,
ENCODING_PEM,
};
#include "openssl_arginfo.h"
/* OpenSSLCertificate class */
zend_class_entry *php_openssl_certificate_ce;
static zend_object_handlers php_openssl_certificate_object_handlers;
static zend_object *php_openssl_certificate_create_object(zend_class_entry *class_type) {
php_openssl_certificate_object *intern = zend_object_alloc(sizeof(php_openssl_certificate_object), class_type);
zend_object_std_init(&intern->std, class_type);
object_properties_init(&intern->std, class_type);
return &intern->std;
}
static zend_function *php_openssl_certificate_get_constructor(zend_object *object) {
zend_throw_error(NULL, "Cannot directly construct OpenSSLCertificate, use openssl_x509_read() instead");
return NULL;
}
static void php_openssl_certificate_free_obj(zend_object *object)
{
php_openssl_certificate_object *x509_object = php_openssl_certificate_from_obj(object);
X509_free(x509_object->x509);
zend_object_std_dtor(&x509_object->std);
}
/* OpenSSLCertificateSigningRequest class */
typedef struct _php_openssl_x509_request_object {
X509_REQ *csr;
zend_object std;
} php_openssl_request_object;
static zend_class_entry *php_openssl_request_ce;
static inline php_openssl_request_object *php_openssl_request_from_obj(zend_object *obj) {
return (php_openssl_request_object *)((char *)(obj) - XtOffsetOf(php_openssl_request_object, std));
}
#define Z_OPENSSL_REQUEST_P(zv) php_openssl_request_from_obj(Z_OBJ_P(zv))
static zend_object_handlers php_openssl_request_object_handlers;
static zend_object *php_openssl_request_create_object(zend_class_entry *class_type) {
php_openssl_request_object *intern = zend_object_alloc(sizeof(php_openssl_request_object), class_type);
zend_object_std_init(&intern->std, class_type);
object_properties_init(&intern->std, class_type);
return &intern->std;
}
static zend_function *php_openssl_request_get_constructor(zend_object *object) {
zend_throw_error(NULL, "Cannot directly construct OpenSSLCertificateSigningRequest, use openssl_csr_new() instead");
return NULL;
}
static void php_openssl_request_free_obj(zend_object *object)
{
php_openssl_request_object *x509_request = php_openssl_request_from_obj(object);
X509_REQ_free(x509_request->csr);
zend_object_std_dtor(&x509_request->std);
}
/* OpenSSLAsymmetricKey class */
typedef struct _php_openssl_pkey_object {
EVP_PKEY *pkey;
bool is_private;
zend_object std;
} php_openssl_pkey_object;
static zend_class_entry *php_openssl_pkey_ce;
static inline php_openssl_pkey_object *php_openssl_pkey_from_obj(zend_object *obj) {
return (php_openssl_pkey_object *)((char *)(obj) - XtOffsetOf(php_openssl_pkey_object, std));
}
#define Z_OPENSSL_PKEY_P(zv) php_openssl_pkey_from_obj(Z_OBJ_P(zv))
static zend_object_handlers php_openssl_pkey_object_handlers;
static zend_object *php_openssl_pkey_create_object(zend_class_entry *class_type) {
php_openssl_pkey_object *intern = zend_object_alloc(sizeof(php_openssl_pkey_object), class_type);
zend_object_std_init(&intern->std, class_type);
object_properties_init(&intern->std, class_type);
return &intern->std;
}
static void php_openssl_pkey_object_init(zval *zv, EVP_PKEY *pkey, bool is_private) {
object_init_ex(zv, php_openssl_pkey_ce);
php_openssl_pkey_object *obj = Z_OPENSSL_PKEY_P(zv);
obj->pkey = pkey;
obj->is_private = is_private;
}
static zend_function *php_openssl_pkey_get_constructor(zend_object *object) {
zend_throw_error(NULL, "Cannot directly construct OpenSSLAsymmetricKey, use openssl_pkey_new() instead");
return NULL;
}
static void php_openssl_pkey_free_obj(zend_object *object)
{
php_openssl_pkey_object *key_object = php_openssl_pkey_from_obj(object);
EVP_PKEY_free(key_object->pkey);
zend_object_std_dtor(&key_object->std);
}
#if defined(HAVE_OPENSSL_ARGON2)
static const zend_module_dep openssl_deps[] = {
ZEND_MOD_REQUIRED("standard")
ZEND_MOD_END
};
#endif
/* {{{ openssl_module_entry */
zend_module_entry openssl_module_entry = {
#if defined(HAVE_OPENSSL_ARGON2)
STANDARD_MODULE_HEADER_EX, NULL,
openssl_deps,
#else
STANDARD_MODULE_HEADER,
#endif
"openssl",
ext_functions,
PHP_MINIT(openssl),
PHP_MSHUTDOWN(openssl),
NULL,
NULL,
PHP_MINFO(openssl),
PHP_OPENSSL_VERSION,
PHP_MODULE_GLOBALS(openssl),
PHP_GINIT(openssl),
PHP_GSHUTDOWN(openssl),
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */
#ifdef COMPILE_DL_OPENSSL
ZEND_GET_MODULE(openssl)
#endif
/* {{{ OpenSSL compatibility functions and macros */
#if PHP_OPENSSL_API_VERSION < 0x10100
#define EVP_PKEY_get0_RSA(_pkey) _pkey->pkey.rsa
#define EVP_PKEY_get0_DH(_pkey) _pkey->pkey.dh
#define EVP_PKEY_get0_DSA(_pkey) _pkey->pkey.dsa
#define EVP_PKEY_get0_EC_KEY(_pkey) _pkey->pkey.ec
static int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d)
{
r->n = n;
r->e = e;
r->d = d;
return 1;
}
static int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q)
{
r->p = p;
r->q = q;
return 1;
}
static int RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp)
{
r->dmp1 = dmp1;
r->dmq1 = dmq1;
r->iqmp = iqmp;
return 1;
}
static void RSA_get0_key(const RSA *r, const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
{
*n = r->n;
*e = r->e;
*d = r->d;
}
static void RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q)
{
*p = r->p;
*q = r->q;
}
static void RSA_get0_crt_params(const RSA *r, const BIGNUM **dmp1, const BIGNUM **dmq1, const BIGNUM **iqmp)
{
*dmp1 = r->dmp1;
*dmq1 = r->dmq1;
*iqmp = r->iqmp;
}
static void DH_get0_pqg(const DH *dh, const BIGNUM **p, const BIGNUM **q, const BIGNUM **g)
{
*p = dh->p;
*q = dh->q;
*g = dh->g;
}
static int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g)
{
dh->p = p;
dh->q = q;
dh->g = g;
return 1;
}
static void DH_get0_key(const DH *dh, const BIGNUM **pub_key, const BIGNUM **priv_key)
{
*pub_key = dh->pub_key;
*priv_key = dh->priv_key;
}
static int DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key)
{
dh->pub_key = pub_key;
dh->priv_key = priv_key;
return 1;
}
static void DSA_get0_pqg(const DSA *d, const BIGNUM **p, const BIGNUM **q, const BIGNUM **g)
{
*p = d->p;
*q = d->q;
*g = d->g;
}
int DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g)
{
d->p = p;
d->q = q;
d->g = g;
return 1;
}
static void DSA_get0_key(const DSA *d, const BIGNUM **pub_key, const BIGNUM **priv_key)
{
*pub_key = d->pub_key;
*priv_key = d->priv_key;
}
int DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key)
{
d->pub_key = pub_key;
d->priv_key = priv_key;
return 1;
}
static const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1)
{
return M_ASN1_STRING_data(asn1);
}
static int EVP_PKEY_up_ref(EVP_PKEY *pkey)
{
return CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
}
#if PHP_OPENSSL_API_VERSION < 0x10002
static int X509_get_signature_nid(const X509 *x)
{
return OBJ_obj2nid(x->sig_alg->algorithm);
}
#endif
#define OpenSSL_version SSLeay_version
#define OPENSSL_VERSION SSLEAY_VERSION
#define X509_getm_notBefore X509_get_notBefore
#define X509_getm_notAfter X509_get_notAfter
#define EVP_CIPHER_CTX_reset EVP_CIPHER_CTX_cleanup
#endif
/* }}} */
/* number conversion flags checks */
#define PHP_OPENSSL_CHECK_NUMBER_CONVERSION(_cond, _name, _arg_num) \
do { \
if (_cond) { \
zend_argument_value_error((_arg_num), #_name" is too long"); \
RETURN_THROWS(); \
} \
} while(0)
#define PHP_OPENSSL_CHECK_NUMBER_CONVERSION_NULL_RETURN(_cond, _name) \
do { \
if (_cond) { \
zend_value_error(#_name" is too long"); \
return NULL; \
} \
} while(0)
/* check if size_t can be safely casted to int */
#define PHP_OPENSSL_CHECK_SIZE_T_TO_INT(_var, _name, _arg_num) \
PHP_OPENSSL_CHECK_NUMBER_CONVERSION(ZEND_SIZE_T_INT_OVFL(_var), _name, _arg_num)
#define PHP_OPENSSL_CHECK_SIZE_T_TO_INT_NULL_RETURN(_var, _name) \
PHP_OPENSSL_CHECK_NUMBER_CONVERSION_NULL_RETURN(ZEND_SIZE_T_INT_OVFL(_var), _name)
/* check if size_t can be safely casted to unsigned int */
#define PHP_OPENSSL_CHECK_SIZE_T_TO_UINT(_var, _name, _arg_num) \
PHP_OPENSSL_CHECK_NUMBER_CONVERSION(ZEND_SIZE_T_UINT_OVFL(_var), _name, _arg_num)
/* check if long can be safely casted to int */
#define PHP_OPENSSL_CHECK_LONG_TO_INT(_var, _name, _arg_num) \
PHP_OPENSSL_CHECK_NUMBER_CONVERSION(ZEND_LONG_EXCEEDS_INT(_var), _name, _arg_num)
#define PHP_OPENSSL_CHECK_LONG_TO_INT_NULL_RETURN(_var, _name) \
PHP_OPENSSL_CHECK_NUMBER_CONVERSION_NULL_RETURN(ZEND_LONG_EXCEEDS_INT(_var), _name)
/* {{{ php_openssl_store_errors */
void php_openssl_store_errors(void)
{
struct php_openssl_errors *errors;
int error_code = ERR_get_error();
if (!error_code) {
return;
}
if (!OPENSSL_G(errors)) {
OPENSSL_G(errors) = pecalloc(1, sizeof(struct php_openssl_errors), 1);
}
errors = OPENSSL_G(errors);
do {
errors->top = (errors->top + 1) % ERR_NUM_ERRORS;
if (errors->top == errors->bottom) {
errors->bottom = (errors->bottom + 1) % ERR_NUM_ERRORS;
}
errors->buffer[errors->top] = error_code;
} while ((error_code = ERR_get_error()));
}
/* }}} */
/* {{{ php_openssl_errors_set_mark */
static void php_openssl_errors_set_mark(void) {
if (!OPENSSL_G(errors)) {
return;
}
if (!OPENSSL_G(errors_mark)) {
OPENSSL_G(errors_mark) = pecalloc(1, sizeof(struct php_openssl_errors), 1);
}
memcpy(OPENSSL_G(errors_mark), OPENSSL_G(errors), sizeof(struct php_openssl_errors));
}
/* }}} */
/* {{{ php_openssl_errors_restore_mark */
static void php_openssl_errors_restore_mark(void) {
if (!OPENSSL_G(errors)) {
return;
}
struct php_openssl_errors *errors = OPENSSL_G(errors);
if (!OPENSSL_G(errors_mark)) {
errors->top = 0;
errors->bottom = 0;
} else {
memcpy(errors, OPENSSL_G(errors_mark), sizeof(struct php_openssl_errors));
}
}
/* }}} */
/* openssl file path check error function */
static void php_openssl_check_path_error(uint32_t arg_num, int type, const char *format, ...)
{
va_list va;
const char *arg_name;
va_start(va, format);
if (type == E_ERROR) {
zend_argument_error_variadic(zend_ce_value_error, arg_num, format, va);
} else {
arg_name = get_active_function_arg_name(arg_num);
php_verror(NULL, arg_name, type, format, va);
}
va_end(va);
}
/* openssl file path check extended */
bool php_openssl_check_path_ex(
const char *file_path, size_t file_path_len, char *real_path, uint32_t arg_num,
bool contains_file_protocol, bool is_from_array, const char *option_name)
{
const char *fs_file_path;
size_t fs_file_path_len;
const char *error_msg = NULL;
int error_type = E_WARNING;
if (file_path_len == 0) {
real_path[0] = '\0';
return true;
}
if (contains_file_protocol) {
size_t path_prefix_len = sizeof("file://") - 1;
if (file_path_len <= path_prefix_len) {
return false;
}
fs_file_path = file_path + path_prefix_len;
fs_file_path_len = file_path_len - path_prefix_len;
} else {
fs_file_path = file_path;
fs_file_path_len = file_path_len;
}
if (CHECK_NULL_PATH(fs_file_path, fs_file_path_len)) {
error_msg = "must not contain any null bytes";
error_type = E_ERROR;
} else if (expand_filepath(fs_file_path, real_path) == NULL) {
error_msg = "must be a valid file path";
}
if (error_msg != NULL) {
if (arg_num == 0) {
const char *option_title = option_name ? option_name : "unknown";
const char *option_label = is_from_array ? "array item" : "option";
php_error_docref(NULL, E_WARNING, "Path for %s %s %s",
option_title, option_label, error_msg);
} else if (is_from_array && option_name != NULL) {
php_openssl_check_path_error(
arg_num, error_type, "option %s array item %s", option_name, error_msg);
} else if (is_from_array) {
php_openssl_check_path_error(arg_num, error_type, "array item %s", error_msg);
} else if (option_name != NULL) {
php_openssl_check_path_error(
arg_num, error_type, "option %s %s", option_name, error_msg);
} else {
php_openssl_check_path_error(arg_num, error_type, "%s", error_msg);
}
} else if (!php_check_open_basedir(real_path)) {
return true;
}
return false;
}
static int ssl_stream_data_index;
php_stream* php_openssl_get_stream_from_ssl_handle(const SSL *ssl)
{
return (php_stream*)SSL_get_ex_data(ssl, ssl_stream_data_index);
}
int php_openssl_get_ssl_stream_data_index(void)
{
return ssl_stream_data_index;
}
/* openssl -> PHP "bridging" */
/* true global; readonly after module startup */
static char default_ssl_conf_filename[MAXPATHLEN];
struct php_x509_request { /* {{{ */
CONF *global_config; /* Global SSL config */
CONF *req_config; /* SSL config for this request */
const EVP_MD * md_alg;
const EVP_MD * digest;
char * section_name,
* config_filename,
* digest_name,
* extensions_section,
* request_extensions_section;
int priv_key_bits;
int priv_key_type;
int priv_key_encrypt;
#ifdef HAVE_EVP_PKEY_EC
int curve_name;
#endif
EVP_PKEY * priv_key;
const EVP_CIPHER * priv_key_encrypt_cipher;
};
/* }}} */
static X509 *php_openssl_x509_from_param(
zend_object *cert_obj, zend_string *cert_str, uint32_t arg_num);
static X509 *php_openssl_x509_from_zval(
zval *val, bool *free_cert, uint32_t arg_num, bool is_from_array, const char *option_name);
static X509_REQ *php_openssl_csr_from_param(
zend_object *csr_obj, zend_string *csr_str, uint32_t arg_num);
static EVP_PKEY *php_openssl_pkey_from_zval(
zval *val, int public_key, char *passphrase, size_t passphrase_len, uint32_t arg_num);
static X509_STORE * php_openssl_setup_verify(zval * calist, uint32_t arg_num);
static STACK_OF(X509) * php_openssl_load_all_certs_from_file(
char *cert_file, size_t cert_file_len, uint32_t arg_num);
static EVP_PKEY * php_openssl_generate_private_key(struct php_x509_request * req);
static 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);
}
}
/* }}} */
static void php_openssl_add_assoc_asn1_string(zval * val, char * key, ASN1_STRING * str) /* {{{ */
{
add_assoc_stringl(val, key, (char *)str->data, str->length);
}
/* }}} */
static 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;
}
/* }}} */
static inline 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;
}
/* }}} */
static 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;
}
static 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;
}
static 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;
}
/* }}} */
#define PHP_SSL_REQ_INIT(req) memset(req, 0, sizeof(*req))
#define PHP_SSL_REQ_DISPOSE(req) php_openssl_dispose_config(req)
#define PHP_SSL_REQ_PARSE(req, zval) php_openssl_parse_config(req, zval)
#define PHP_SSL_CONFIG_SYNTAX_CHECK(var) if (req->var && php_openssl_config_check_syntax(#var, \
req->config_filename, req->var, req->req_config) == FAILURE) return FAILURE
#define SET_OPTIONAL_STRING_ARG(key, varname, defval) \
do { \
if (optional_args && (item = zend_hash_str_find(Z_ARRVAL_P(optional_args), key, sizeof(key)-1)) != NULL && Z_TYPE_P(item) == IS_STRING) { \
varname = Z_STRVAL_P(item); \
} else { \
varname = defval; \
if (varname == NULL) { \
php_openssl_store_errors(); \
} \
} \
} while(0)
#define SET_OPTIONAL_LONG_ARG(key, varname, defval) \
if (optional_args && (item = zend_hash_str_find(Z_ARRVAL_P(optional_args), key, sizeof(key)-1)) != NULL && Z_TYPE_P(item) == IS_LONG) \
varname = (int)Z_LVAL_P(item); \
else \
varname = defval
static const EVP_CIPHER * php_openssl_get_evp_cipher_from_algo(zend_long algo);
/* {{{ strip line endings from spkac */
static 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;
}
/* }}} */
static 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;