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|
/*
+----------------------------------------------------------------------+
| xpass extension for PHP |
+----------------------------------------------------------------------+
| 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: |
| http://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 |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Remi Collet <remi@php.net> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "ext/standard/info.h"
#include "ext/standard/php_password.h"
#include "php_xpass.h"
#include <crypt.h>
#include "xpass_arginfo.h"
/* {{{ PHP_RINIT_FUNCTION */
PHP_RINIT_FUNCTION(xpass)
{
#if defined(ZTS) && defined(COMPILE_DL_XPASS)
ZEND_TSRMLS_CACHE_UPDATE();
#endif
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION */
PHP_MINFO_FUNCTION(xpass)
{
php_info_print_table_start();
php_info_print_table_header(2, "Extended password support", "enabled");
php_info_print_table_row(2, "Extension version", PHP_XPASS_VERSION);
php_info_print_table_row(2, "libxcrypt version", XCRYPT_VERSION_STR);
php_info_print_table_row(2, "Author", PHP_XPASS_AUTHOR);
php_info_print_table_row(2, "License", PHP_XPASS_LICENSE);
#ifdef HAVE_CRYPT_SHA512
php_info_print_table_row(2, "sha512 hash", "yes");
#else
php_info_print_table_row(2, "sha512 hash", "no");
#endif
#ifdef HAVE_CRYPT_YESCRYPT
php_info_print_table_row(2, "yescrypt hash", "yes");
#else
php_info_print_table_row(2, "yescrypt hash", "no");
#endif
php_info_print_table_end();
}
/* }}} */
static bool get_options(zend_array *options, zend_ulong *cost) {
zval *opt;
*cost = 0;
if (!options) {
return true;
}
if ((opt = zend_hash_str_find(options, "cost", strlen("cost")))) {
*cost = zval_get_long(opt);
}
return true;
}
static zend_string *php_xpass_hash(const zend_string *password, zend_array *options, const char *algo) {
struct crypt_data data;
zend_ulong cost;
memset(&data, 0, sizeof(data));
if (!get_options(options, &cost)) {
return NULL;
}
if ((ZSTR_LEN(password) >= CRYPT_MAX_PASSPHRASE_SIZE)) {
zend_value_error("Password is too long");
return NULL;
}
if (!crypt_gensalt_rn(algo, cost, NULL, 0, data.setting, sizeof(data.setting))) {
zend_value_error("Bad password options");
return NULL;
}
if (!crypt_r(ZSTR_VAL(password), data.setting, &data)) {
zend_value_error("Unexpected failure hashing password");
return NULL;
}
return zend_string_init(data.output, strlen(data.output), 0);
}
static zend_string *php_xpass_yescrypt_hash(const zend_string *password, zend_array *options) {
return php_xpass_hash(password, options, "$y$");
}
static zend_string *php_xpass_sha512_hash(const zend_string *password, zend_array *options) {
return php_xpass_hash(password, options, "$6$");
}
static bool php_xpass_verify(const zend_string *password, const zend_string *hash) {
struct crypt_data data;
memset(&data, 0, sizeof(data));
if ((ZSTR_LEN(password) >= CRYPT_MAX_PASSPHRASE_SIZE) || (ZSTR_LEN(hash) >= CRYPT_OUTPUT_SIZE)) {
return false;
}
if (!crypt_r(ZSTR_VAL(password), ZSTR_VAL(hash), &data)) {
return false;
}
if (strcmp(data.output, ZSTR_VAL(hash))) {
return false;
}
return true;
}
static bool php_xpass_needs_rehash(const zend_string *hash, zend_array *options) {
if (crypt_checksalt(ZSTR_VAL(hash)) != CRYPT_SALT_OK) {
return 1;
}
return 0;
}
static const php_password_algo xpass_algo_sha512 = {
"sha512",
php_xpass_sha512_hash,
php_xpass_verify,
php_xpass_needs_rehash,
NULL, // php_xpass_yescrypt_get_info,
NULL,
};
static const php_password_algo xpass_algo_yescrypt = {
"yescrypt",
php_xpass_yescrypt_hash,
php_xpass_verify,
php_xpass_needs_rehash,
NULL, // php_xpass_yescrypt_get_info,
NULL,
};
/* {{{ Generates a salt for algo */
PHP_FUNCTION(crypt_gensalt)
{
char salt[CRYPT_GENSALT_OUTPUT_SIZE + 1];
char *prefix = NULL;
size_t prefix_len = 0;
zend_long count = 0;
ZEND_PARSE_PARAMETERS_START(0, 2)
Z_PARAM_OPTIONAL
Z_PARAM_STRING(prefix, prefix_len)
Z_PARAM_LONG(count)
ZEND_PARSE_PARAMETERS_END();
if (crypt_gensalt_rn(prefix, (unsigned long)count, NULL, 0, salt, CRYPT_GENSALT_OUTPUT_SIZE)) {
RETURN_STRING(salt);
}
RETURN_NULL();
}
/* }}} */
/* {{{ Get preferred hasing method prefix */
PHP_FUNCTION(crypt_preferred_method)
{
const char *prefix;
ZEND_PARSE_PARAMETERS_NONE();
prefix = crypt_preferred_method();
if (prefix) {
RETURN_STRING(prefix);
}
RETURN_NULL();
}
/* }}} */
/* {{{ Determine whether the user's passphrase should be re-hashed using the currently preferred hashing method */
PHP_FUNCTION(crypt_checksalt)
{
char *salt;
size_t salt_len;
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_STRING(salt, salt_len)
ZEND_PARSE_PARAMETERS_END();
RETURN_LONG(crypt_checksalt(salt));
}
/* }}} */
PHP_MINIT_FUNCTION(xpass) /* {{{ */ {
register_xpass_symbols(module_number);
#ifdef HAVE_CRYPT_SHA512
if (FAILURE == php_password_algo_register("6", &xpass_algo_sha512)) {
return FAILURE;
}
REGISTER_STRING_CONSTANT("PASSWORD_SHA512", "6", CONST_CS | CONST_PERSISTENT);
#endif
#ifdef HAVE_CRYPT_YESCRYPT
if (FAILURE == php_password_algo_register("y", &xpass_algo_yescrypt)) {
return FAILURE;
}
REGISTER_STRING_CONSTANT("PASSWORD_YESCRYPT", "y", CONST_CS | CONST_PERSISTENT);
#endif
return SUCCESS;
}
/* {{{ xpass_module_entry */
zend_module_entry xpass_module_entry = {
STANDARD_MODULE_HEADER,
"xpass", /* Extension name */
ext_functions, /* zend_function_entry */
PHP_MINIT(xpass), /* PHP_MINIT - Module initialization */
NULL, /* PHP_MSHUTDOWN - Module shutdown */
PHP_RINIT(xpass), /* PHP_RINIT - Request initialization */
NULL, /* PHP_RSHUTDOWN - Request shutdown */
PHP_MINFO(xpass), /* PHP_MINFO - Module info */
PHP_XPASS_VERSION, /* Version */
STANDARD_MODULE_PROPERTIES
};
/* }}} */
#ifdef COMPILE_DL_XPASS
# ifdef ZTS
ZEND_TSRMLS_CACHE_DEFINE()
# endif
ZEND_GET_MODULE(xpass)
#endif
|
