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mcrypt.c
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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2015 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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Sascha Schumann <[email protected]> |
| Derick Rethans <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#if HAVE_LIBMCRYPT
#if PHP_WIN32
# include "win32/winutil.h"
#endif
#include "php_mcrypt.h"
#include "fcntl.h"
#define NON_FREE
#define MCRYPT2
#include "mcrypt.h"
#include "php_ini.h"
#include "php_globals.h"
#include "ext/standard/info.h"
#include "ext/standard/php_rand.h"
#include "zend_smart_str.h"
#include "php_mcrypt_filter.h"
static int le_mcrypt;
typedef struct _php_mcrypt {
MCRYPT td;
zend_bool init;
} php_mcrypt;
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_module_open, 0, 0, 4)
ZEND_ARG_INFO(0, cipher)
ZEND_ARG_INFO(0, cipher_directory)
ZEND_ARG_INFO(0, mode)
ZEND_ARG_INFO(0, mode_directory)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_generic_init, 0, 0, 3)
ZEND_ARG_INFO(0, td)
ZEND_ARG_INFO(0, key)
ZEND_ARG_INFO(0, iv)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_generic, 0, 0, 2)
ZEND_ARG_INFO(0, td)
ZEND_ARG_INFO(0, data)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mdecrypt_generic, 0, 0, 2)
ZEND_ARG_INFO(0, td)
ZEND_ARG_INFO(0, data)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_enc_get_supported_key_sizes, 0, 0, 1)
ZEND_ARG_INFO(0, td)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_enc_self_test, 0, 0, 1)
ZEND_ARG_INFO(0, td)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_module_close, 0, 0, 1)
ZEND_ARG_INFO(0, td)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_generic_deinit, 0, 0, 1)
ZEND_ARG_INFO(0, td)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_enc_is_block_algorithm_mode, 0, 0, 1)
ZEND_ARG_INFO(0, td)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_enc_is_block_algorithm, 0, 0, 1)
ZEND_ARG_INFO(0, td)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_enc_is_block_mode, 0, 0, 1)
ZEND_ARG_INFO(0, td)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_enc_get_block_size, 0, 0, 1)
ZEND_ARG_INFO(0, td)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_enc_get_key_size, 0, 0, 1)
ZEND_ARG_INFO(0, td)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_enc_get_iv_size, 0, 0, 1)
ZEND_ARG_INFO(0, td)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_enc_get_algorithms_name, 0, 0, 1)
ZEND_ARG_INFO(0, td)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_enc_get_modes_name, 0, 0, 1)
ZEND_ARG_INFO(0, td)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_module_self_test, 0, 0, 1)
ZEND_ARG_INFO(0, algorithm)
ZEND_ARG_INFO(0, lib_dir)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_module_is_block_algorithm_mode, 0, 0, 1)
ZEND_ARG_INFO(0, mode)
ZEND_ARG_INFO(0, lib_dir)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_module_is_block_algorithm, 0, 0, 1)
ZEND_ARG_INFO(0, algorithm)
ZEND_ARG_INFO(0, lib_dir)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_module_is_block_mode, 0, 0, 1)
ZEND_ARG_INFO(0, mode)
ZEND_ARG_INFO(0, lib_dir)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_module_get_algo_block_size, 0, 0, 1)
ZEND_ARG_INFO(0, algorithm)
ZEND_ARG_INFO(0, lib_dir)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_module_get_algo_key_size, 0, 0, 1)
ZEND_ARG_INFO(0, algorithm)
ZEND_ARG_INFO(0, lib_dir)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_module_get_supported_key_sizes, 0, 0, 1)
ZEND_ARG_INFO(0, algorithm)
ZEND_ARG_INFO(0, lib_dir)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_list_algorithms, 0, 0, 0)
ZEND_ARG_INFO(0, lib_dir)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_list_modes, 0, 0, 0)
ZEND_ARG_INFO(0, lib_dir)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_get_key_size, 0, 0, 2)
ZEND_ARG_INFO(0, cipher)
ZEND_ARG_INFO(0, module)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_get_block_size, 0, 0, 2)
ZEND_ARG_INFO(0, cipher)
ZEND_ARG_INFO(0, module)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_get_iv_size, 0, 0, 2)
ZEND_ARG_INFO(0, cipher)
ZEND_ARG_INFO(0, module)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_get_cipher_name, 0, 0, 1)
ZEND_ARG_INFO(0, cipher)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_encrypt, 0, 0, 5)
ZEND_ARG_INFO(0, cipher)
ZEND_ARG_INFO(0, key)
ZEND_ARG_INFO(0, data)
ZEND_ARG_INFO(0, mode)
ZEND_ARG_INFO(0, iv)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_decrypt, 0, 0, 5)
ZEND_ARG_INFO(0, cipher)
ZEND_ARG_INFO(0, key)
ZEND_ARG_INFO(0, data)
ZEND_ARG_INFO(0, mode)
ZEND_ARG_INFO(0, iv)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_mcrypt_create_iv, 0, 0, 1)
ZEND_ARG_INFO(0, size)
ZEND_ARG_INFO(0, source)
ZEND_END_ARG_INFO()
/* }}} */
const zend_function_entry mcrypt_functions[] = { /* {{{ */
PHP_FE(mcrypt_get_key_size, arginfo_mcrypt_get_key_size)
PHP_FE(mcrypt_get_block_size, arginfo_mcrypt_get_block_size)
PHP_FE(mcrypt_get_cipher_name, arginfo_mcrypt_get_cipher_name)
PHP_FE(mcrypt_create_iv, arginfo_mcrypt_create_iv)
PHP_FE(mcrypt_list_algorithms, arginfo_mcrypt_list_algorithms)
PHP_FE(mcrypt_list_modes, arginfo_mcrypt_list_modes)
PHP_FE(mcrypt_get_iv_size, arginfo_mcrypt_get_iv_size)
PHP_FE(mcrypt_encrypt, arginfo_mcrypt_encrypt)
PHP_FE(mcrypt_decrypt, arginfo_mcrypt_decrypt)
PHP_FE(mcrypt_module_open, arginfo_mcrypt_module_open)
PHP_FE(mcrypt_generic_init, arginfo_mcrypt_generic_init)
PHP_FE(mcrypt_generic, arginfo_mcrypt_generic)
PHP_FE(mdecrypt_generic, arginfo_mdecrypt_generic)
PHP_FE(mcrypt_generic_deinit, arginfo_mcrypt_generic_deinit)
PHP_FE(mcrypt_enc_self_test, arginfo_mcrypt_enc_self_test)
PHP_FE(mcrypt_enc_is_block_algorithm_mode, arginfo_mcrypt_enc_is_block_algorithm_mode)
PHP_FE(mcrypt_enc_is_block_algorithm, arginfo_mcrypt_enc_is_block_algorithm)
PHP_FE(mcrypt_enc_is_block_mode, arginfo_mcrypt_enc_is_block_mode)
PHP_FE(mcrypt_enc_get_block_size, arginfo_mcrypt_enc_get_block_size)
PHP_FE(mcrypt_enc_get_key_size, arginfo_mcrypt_enc_get_key_size)
PHP_FE(mcrypt_enc_get_supported_key_sizes, arginfo_mcrypt_enc_get_supported_key_sizes)
PHP_FE(mcrypt_enc_get_iv_size, arginfo_mcrypt_enc_get_iv_size)
PHP_FE(mcrypt_enc_get_algorithms_name, arginfo_mcrypt_enc_get_algorithms_name)
PHP_FE(mcrypt_enc_get_modes_name, arginfo_mcrypt_enc_get_modes_name)
PHP_FE(mcrypt_module_self_test, arginfo_mcrypt_module_self_test)
PHP_FE(mcrypt_module_is_block_algorithm_mode, arginfo_mcrypt_module_is_block_algorithm_mode)
PHP_FE(mcrypt_module_is_block_algorithm, arginfo_mcrypt_module_is_block_algorithm)
PHP_FE(mcrypt_module_is_block_mode, arginfo_mcrypt_module_is_block_mode)
PHP_FE(mcrypt_module_get_algo_block_size, arginfo_mcrypt_module_get_algo_block_size)
PHP_FE(mcrypt_module_get_algo_key_size, arginfo_mcrypt_module_get_algo_key_size)
PHP_FE(mcrypt_module_get_supported_key_sizes, arginfo_mcrypt_module_get_supported_key_sizes)
PHP_FE(mcrypt_module_close, arginfo_mcrypt_module_close)
PHP_FE_END
};
/* }}} */
static PHP_MINFO_FUNCTION(mcrypt);
static PHP_MINIT_FUNCTION(mcrypt);
static PHP_MSHUTDOWN_FUNCTION(mcrypt);
static PHP_GINIT_FUNCTION(mcrypt);
static PHP_GSHUTDOWN_FUNCTION(mcrypt);
ZEND_DECLARE_MODULE_GLOBALS(mcrypt)
zend_module_entry mcrypt_module_entry = {
STANDARD_MODULE_HEADER,
"mcrypt",
mcrypt_functions,
PHP_MINIT(mcrypt), PHP_MSHUTDOWN(mcrypt),
NULL, NULL,
PHP_MINFO(mcrypt),
PHP_MCRYPT_VERSION,
PHP_MODULE_GLOBALS(mcrypt),
PHP_GINIT(mcrypt),
PHP_GSHUTDOWN(mcrypt),
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
#ifdef COMPILE_DL_MCRYPT
#ifdef ZTS
ZEND_TSRMLS_CACHE_DEFINE();
#endif
ZEND_GET_MODULE(mcrypt)
#endif
#define MCRYPT_ENCRYPT 0
#define MCRYPT_DECRYPT 1
typedef enum {
RANDOM = 0,
URANDOM,
RAND
} iv_source;
#define MCRYPT_GET_INI \
cipher_dir_string = MCG(algorithms_dir); \
module_dir_string = MCG(modes_dir);
/*
* #warning is not ANSI C
* #warning Invalidate resource if the param count is wrong, or other problems
* #warning occurred during functions.
*/
#define MCRYPT_GET_CRYPT_ARGS \
if (zend_parse_parameters(ZEND_NUM_ARGS(), "sssz|s", \
&cipher, &cipher_len, &key, &key_len, &data, &data_len, &mode, &iv, &iv_len) == FAILURE) { \
return; \
}
#define MCRYPT_GET_TD_ARG \
zval *mcryptind; \
php_mcrypt *pm; \
if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &mcryptind) == FAILURE) { \
return; \
} \
if ((pm = (php_mcrypt *)zend_fetch_resource(Z_RES_P(mcryptind), "MCrypt", le_mcrypt)) == NULL) { \
RETURN_FALSE; \
}
#define MCRYPT_GET_MODE_DIR_ARGS(DIRECTORY) \
char *dir = NULL; \
size_t dir_len; \
char *module; \
size_t module_len; \
if (zend_parse_parameters (ZEND_NUM_ARGS(), \
"s|s", &module, &module_len, &dir, &dir_len) == FAILURE) { \
return; \
}
#define MCRYPT_OPEN_MODULE_FAILED "Module initialization failed"
#define MCRYPT_ENTRY2_2_4(a,b) REGISTER_STRING_CONSTANT("MCRYPT_" #a, b, CONST_PERSISTENT)
#define MCRYPT_ENTRY2_4(a) MCRYPT_ENTRY_NAMED(a, a)
#define PHP_MCRYPT_INIT_CHECK \
if (!pm->init) { \
php_error_docref(NULL, E_WARNING, "Operation disallowed prior to mcrypt_generic_init()."); \
RETURN_FALSE; \
} \
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("mcrypt.algorithms_dir", NULL, PHP_INI_ALL, OnUpdateString, algorithms_dir, zend_mcrypt_globals, mcrypt_globals)
STD_PHP_INI_ENTRY("mcrypt.modes_dir", NULL, PHP_INI_ALL, OnUpdateString, modes_dir, zend_mcrypt_globals, mcrypt_globals)
PHP_INI_END()
static void php_mcrypt_module_dtor(zend_resource *rsrc) /* {{{ */
{
php_mcrypt *pm = (php_mcrypt *) rsrc->ptr;
if (pm) {
mcrypt_generic_deinit(pm->td);
mcrypt_module_close(pm->td);
efree(pm);
pm = NULL;
}
}
/* }}} */
static PHP_GINIT_FUNCTION(mcrypt)
{/*{{{*/
#if defined(COMPILE_DL_MCRYPT) && defined(ZTS)
ZEND_TSRMLS_CACHE_UPDATE();
#endif
mcrypt_globals->fd[RANDOM] = -1;
mcrypt_globals->fd[URANDOM] = -1;
}/*}}}*/
static PHP_GSHUTDOWN_FUNCTION(mcrypt)
{/*{{{*/
if (mcrypt_globals->fd[RANDOM] > 0) {
close(mcrypt_globals->fd[RANDOM]);
mcrypt_globals->fd[RANDOM] = -1;
}
if (mcrypt_globals->fd[URANDOM] > 0) {
close(mcrypt_globals->fd[URANDOM]);
mcrypt_globals->fd[URANDOM] = -1;
}
}/*}}}*/
static PHP_MINIT_FUNCTION(mcrypt) /* {{{ */
{
le_mcrypt = zend_register_list_destructors_ex(php_mcrypt_module_dtor, NULL, "mcrypt", module_number);
/* modes for mcrypt_??? routines */
REGISTER_LONG_CONSTANT("MCRYPT_ENCRYPT", 0, CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MCRYPT_DECRYPT", 1, CONST_PERSISTENT);
/* sources for mcrypt_create_iv */
REGISTER_LONG_CONSTANT("MCRYPT_DEV_RANDOM", RANDOM, CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MCRYPT_DEV_URANDOM", URANDOM, CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MCRYPT_RAND", RAND, CONST_PERSISTENT);
/* ciphers */
MCRYPT_ENTRY2_2_4(3DES, "tripledes");
MCRYPT_ENTRY2_2_4(ARCFOUR_IV, "arcfour-iv");
MCRYPT_ENTRY2_2_4(ARCFOUR, "arcfour");
MCRYPT_ENTRY2_2_4(BLOWFISH, "blowfish");
MCRYPT_ENTRY2_2_4(BLOWFISH_COMPAT, "blowfish-compat");
MCRYPT_ENTRY2_2_4(CAST_128, "cast-128");
MCRYPT_ENTRY2_2_4(CAST_256, "cast-256");
MCRYPT_ENTRY2_2_4(CRYPT, "crypt");
MCRYPT_ENTRY2_2_4(DES, "des");
MCRYPT_ENTRY2_2_4(ENIGNA, "crypt");
MCRYPT_ENTRY2_2_4(GOST, "gost");
MCRYPT_ENTRY2_2_4(LOKI97, "loki97");
MCRYPT_ENTRY2_2_4(PANAMA, "panama");
MCRYPT_ENTRY2_2_4(RC2, "rc2");
MCRYPT_ENTRY2_2_4(RIJNDAEL_128, "rijndael-128");
MCRYPT_ENTRY2_2_4(RIJNDAEL_192, "rijndael-192");
MCRYPT_ENTRY2_2_4(RIJNDAEL_256, "rijndael-256");
MCRYPT_ENTRY2_2_4(SAFER64, "safer-sk64");
MCRYPT_ENTRY2_2_4(SAFER128, "safer-sk128");
MCRYPT_ENTRY2_2_4(SAFERPLUS, "saferplus");
MCRYPT_ENTRY2_2_4(SERPENT, "serpent");
MCRYPT_ENTRY2_2_4(THREEWAY, "threeway");
MCRYPT_ENTRY2_2_4(TRIPLEDES, "tripledes");
MCRYPT_ENTRY2_2_4(TWOFISH, "twofish");
MCRYPT_ENTRY2_2_4(WAKE, "wake");
MCRYPT_ENTRY2_2_4(XTEA, "xtea");
MCRYPT_ENTRY2_2_4(IDEA, "idea");
MCRYPT_ENTRY2_2_4(MARS, "mars");
MCRYPT_ENTRY2_2_4(RC6, "rc6");
MCRYPT_ENTRY2_2_4(SKIPJACK, "skipjack");
/* modes */
MCRYPT_ENTRY2_2_4(MODE_CBC, "cbc");
MCRYPT_ENTRY2_2_4(MODE_CFB, "cfb");
MCRYPT_ENTRY2_2_4(MODE_ECB, "ecb");
MCRYPT_ENTRY2_2_4(MODE_NOFB, "nofb");
MCRYPT_ENTRY2_2_4(MODE_OFB, "ofb");
MCRYPT_ENTRY2_2_4(MODE_STREAM, "stream");
REGISTER_INI_ENTRIES();
php_stream_filter_register_factory("mcrypt.*", &php_mcrypt_filter_factory);
php_stream_filter_register_factory("mdecrypt.*", &php_mcrypt_filter_factory);
return SUCCESS;
}
/* }}} */
static PHP_MSHUTDOWN_FUNCTION(mcrypt) /* {{{ */
{
php_stream_filter_unregister_factory("mcrypt.*");
php_stream_filter_unregister_factory("mdecrypt.*");
UNREGISTER_INI_ENTRIES();
return SUCCESS;
}
/* }}} */
#include "zend_smart_str.h"
PHP_MINFO_FUNCTION(mcrypt) /* {{{ */
{
char **modules;
char mcrypt_api_no[16];
int i, count;
smart_str tmp1 = {0};
smart_str tmp2 = {0};
modules = mcrypt_list_algorithms(MCG(algorithms_dir), &count);
if (count == 0) {
smart_str_appends(&tmp1, "none");
}
for (i = 0; i < count; i++) {
smart_str_appends(&tmp1, modules[i]);
smart_str_appendc(&tmp1, ' ');
}
smart_str_0(&tmp1);
mcrypt_free_p(modules, count);
modules = mcrypt_list_modes(MCG(modes_dir), &count);
if (count == 0) {
smart_str_appends(&tmp2, "none");
}
for (i = 0; i < count; i++) {
smart_str_appends(&tmp2, modules[i]);
smart_str_appendc(&tmp2, ' ');
}
smart_str_0 (&tmp2);
mcrypt_free_p (modules, count);
snprintf (mcrypt_api_no, 16, "%d", MCRYPT_API_VERSION);
php_info_print_table_start();
php_info_print_table_header(2, "mcrypt support", "enabled");
php_info_print_table_header(2, "mcrypt_filter support", "enabled");
php_info_print_table_row(2, "Version", LIBMCRYPT_VERSION);
php_info_print_table_row(2, "Api No", mcrypt_api_no);
php_info_print_table_row(2, "Supported ciphers", ZSTR_VAL(tmp1.s));
php_info_print_table_row(2, "Supported modes", ZSTR_VAL(tmp2.s));
smart_str_free(&tmp1);
smart_str_free(&tmp2);
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
/* }}} */
/* {{{ proto resource mcrypt_module_open(string cipher, string cipher_directory, string mode, string mode_directory)
Opens the module of the algorithm and the mode to be used */
PHP_FUNCTION(mcrypt_module_open)
{
char *cipher, *cipher_dir;
char *mode, *mode_dir;
size_t cipher_len, cipher_dir_len;
size_t mode_len, mode_dir_len;
MCRYPT td;
php_mcrypt *pm;
if (zend_parse_parameters (ZEND_NUM_ARGS(), "ssss",
&cipher, &cipher_len, &cipher_dir, &cipher_dir_len,
&mode, &mode_len, &mode_dir, &mode_dir_len)) {
return;
}
td = mcrypt_module_open (
cipher,
cipher_dir_len > 0 ? cipher_dir : MCG(algorithms_dir),
mode,
mode_dir_len > 0 ? mode_dir : MCG(modes_dir)
);
if (td == MCRYPT_FAILED) {
php_error_docref(NULL, E_WARNING, "Could not open encryption module");
RETURN_FALSE;
} else {
pm = emalloc(sizeof(php_mcrypt));
pm->td = td;
pm->init = 0;
RETURN_RES(zend_register_resource(pm, le_mcrypt));
}
}
/* }}} */
/* {{{ proto int mcrypt_generic_init(resource td, string key, string iv)
This function initializes all buffers for the specific module */
PHP_FUNCTION(mcrypt_generic_init)
{
char *key, *iv;
size_t key_len, iv_len;
zval *mcryptind;
unsigned char *key_s, *iv_s;
int max_key_size, key_size, iv_size;
php_mcrypt *pm;
int result = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "rss", &mcryptind, &key, &key_len, &iv, &iv_len) == FAILURE) {
return;
}
if ((pm = (php_mcrypt *)zend_fetch_resource(Z_RES_P(mcryptind), "MCrypt", le_mcrypt)) == NULL) {
RETURN_FALSE;
}
max_key_size = mcrypt_enc_get_key_size(pm->td);
iv_size = mcrypt_enc_get_iv_size(pm->td);
if (key_len == 0) {
php_error_docref(NULL, E_WARNING, "Key size is 0");
}
key_s = emalloc(key_len);
memset(key_s, 0, key_len);
iv_s = emalloc(iv_size + 1);
memset(iv_s, 0, iv_size + 1);
if (key_len > max_key_size) {
php_error_docref(NULL, E_WARNING, "Key size too large; supplied length: %d, max: %d", key_len, max_key_size);
key_size = max_key_size;
} else {
key_size = (int)key_len;
}
memcpy(key_s, key, key_len);
if (iv_len != iv_size) {
php_error_docref(NULL, E_WARNING, "Iv size incorrect; supplied length: %d, needed: %d", iv_len, iv_size);
if (iv_len > iv_size) {
iv_len = iv_size;
}
}
memcpy(iv_s, iv, iv_len);
mcrypt_generic_deinit(pm->td);
result = mcrypt_generic_init(pm->td, key_s, key_size, iv_s);
/* If this function fails, close the mcrypt module to prevent crashes
* when further functions want to access this resource */
if (result < 0) {
zend_list_close(Z_RES_P(mcryptind));
switch (result) {
case -3:
php_error_docref(NULL, E_WARNING, "Key length incorrect");
break;
case -4:
php_error_docref(NULL, E_WARNING, "Memory allocation error");
break;
case -1:
default:
php_error_docref(NULL, E_WARNING, "Unknown error");
break;
}
} else {
pm->init = 1;
}
RETVAL_LONG(result);
efree(iv_s);
efree(key_s);
}
/* }}} */
/* {{{ proto string mcrypt_generic(resource td, string data)
This function encrypts the plaintext */
PHP_FUNCTION(mcrypt_generic)
{
zval *mcryptind;
char *data;
size_t data_len;
php_mcrypt *pm;
zend_string* data_str;
int block_size, data_size;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "rs", &mcryptind, &data, &data_len) == FAILURE) {
return;
}
if ((pm = (php_mcrypt *)zend_fetch_resource(Z_RES_P(mcryptind), "MCrypt", le_mcrypt)) == NULL) {
RETURN_FALSE;
}
PHP_MCRYPT_INIT_CHECK
if (data_len == 0) {
php_error_docref(NULL, E_WARNING, "An empty string was passed");
RETURN_FALSE
}
/* Check blocksize */
if (mcrypt_enc_is_block_mode(pm->td) == 1) { /* It's a block algorithm */
block_size = mcrypt_enc_get_block_size(pm->td);
data_size = ((((int)data_len - 1) / block_size) + 1) * block_size;
data_str = zend_string_alloc(data_size, 0);
memset(ZSTR_VAL(data_str), 0, data_size);
memcpy(ZSTR_VAL(data_str), data, data_len);
} else { /* It's not a block algorithm */
data_size = (int)data_len;
data_str = zend_string_alloc(data_size, 0);
memset(ZSTR_VAL(data_str), 0, data_size);
memcpy(ZSTR_VAL(data_str), data, data_len);
}
mcrypt_generic(pm->td, ZSTR_VAL(data_str), data_size);
ZSTR_VAL(data_str)[data_size] = '\0';
RETVAL_NEW_STR(data_str);
}
/* }}} */
/* {{{ proto string mdecrypt_generic(resource td, string data)
This function decrypts the plaintext */
PHP_FUNCTION(mdecrypt_generic)
{
zval *mcryptind;
char *data;
size_t data_len;
php_mcrypt *pm;
char* data_s;
int block_size, data_size;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "rs", &mcryptind, &data, &data_len) == FAILURE) {
return;
}
if ((pm = (php_mcrypt *)zend_fetch_resource(Z_RES_P(mcryptind), "MCrypt", le_mcrypt)) == NULL) {
RETURN_FALSE;
}
PHP_MCRYPT_INIT_CHECK
if (data_len == 0) {
php_error_docref(NULL, E_WARNING, "An empty string was passed");
RETURN_FALSE
}
/* Check blocksize */
if (mcrypt_enc_is_block_mode(pm->td) == 1) { /* It's a block algorithm */
block_size = mcrypt_enc_get_block_size(pm->td);
data_size = ((((int)data_len - 1) / block_size) + 1) * block_size;
data_s = emalloc(data_size + 1);
memset(data_s, 0, data_size);
memcpy(data_s, data, data_len);
} else { /* It's not a block algorithm */
data_size = (int)data_len;
data_s = emalloc(data_size + 1);
memset(data_s, 0, data_size);
memcpy(data_s, data, data_len);
}
mdecrypt_generic(pm->td, data_s, data_size);
RETVAL_STRINGL(data_s, data_size);
efree(data_s);
}
/* }}} */
/* {{{ proto array mcrypt_enc_get_supported_key_sizes(resource td)
This function decrypts the crypttext */
PHP_FUNCTION(mcrypt_enc_get_supported_key_sizes)
{
int i, count = 0;
int *key_sizes;
MCRYPT_GET_TD_ARG
array_init(return_value);
key_sizes = mcrypt_enc_get_supported_key_sizes(pm->td, &count);
for (i = 0; i < count; i++) {
add_index_long(return_value, i, key_sizes[i]);
}
mcrypt_free(key_sizes);
}
/* }}} */
/* {{{ proto int mcrypt_enc_self_test(resource td)
This function runs the self test on the algorithm specified by the descriptor td */
PHP_FUNCTION(mcrypt_enc_self_test)
{
MCRYPT_GET_TD_ARG
RETURN_LONG(mcrypt_enc_self_test(pm->td));
}
/* }}} */
/* {{{ proto bool mcrypt_module_close(resource td)
Free the descriptor td */
PHP_FUNCTION(mcrypt_module_close)
{
MCRYPT_GET_TD_ARG
zend_list_close(Z_RES_P(mcryptind));
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool mcrypt_generic_deinit(resource td)
This function terminates encrypt specified by the descriptor td */
PHP_FUNCTION(mcrypt_generic_deinit)
{
MCRYPT_GET_TD_ARG
if (mcrypt_generic_deinit(pm->td) < 0) {
php_error_docref(NULL, E_WARNING, "Could not terminate encryption specifier");
RETURN_FALSE
}
pm->init = 0;
RETURN_TRUE
}
/* }}} */
/* {{{ proto bool mcrypt_enc_is_block_algorithm_mode(resource td)
Returns TRUE if the mode is for use with block algorithms */
PHP_FUNCTION(mcrypt_enc_is_block_algorithm_mode)
{
MCRYPT_GET_TD_ARG
if (mcrypt_enc_is_block_algorithm_mode(pm->td) == 1) {
RETURN_TRUE
} else {
RETURN_FALSE
}
}
/* }}} */
/* {{{ proto bool mcrypt_enc_is_block_algorithm(resource td)
Returns TRUE if the alrogithm is a block algorithms */
PHP_FUNCTION(mcrypt_enc_is_block_algorithm)
{
MCRYPT_GET_TD_ARG
if (mcrypt_enc_is_block_algorithm(pm->td) == 1) {
RETURN_TRUE
} else {
RETURN_FALSE
}
}
/* }}} */
/* {{{ proto bool mcrypt_enc_is_block_mode(resource td)
Returns TRUE if the mode outputs blocks */
PHP_FUNCTION(mcrypt_enc_is_block_mode)
{
MCRYPT_GET_TD_ARG
if (mcrypt_enc_is_block_mode(pm->td) == 1) {
RETURN_TRUE
} else {
RETURN_FALSE
}
}
/* }}} */
/* {{{ proto int mcrypt_enc_get_block_size(resource td)
Returns the block size of the cipher specified by the descriptor td */
PHP_FUNCTION(mcrypt_enc_get_block_size)
{
MCRYPT_GET_TD_ARG
RETURN_LONG(mcrypt_enc_get_block_size(pm->td));
}
/* }}} */
/* {{{ proto int mcrypt_enc_get_key_size(resource td)
Returns the maximum supported key size in bytes of the algorithm specified by the descriptor td */
PHP_FUNCTION(mcrypt_enc_get_key_size)
{
MCRYPT_GET_TD_ARG
RETURN_LONG(mcrypt_enc_get_key_size(pm->td));
}
/* }}} */
/* {{{ proto int mcrypt_enc_get_iv_size(resource td)
Returns the size of the IV in bytes of the algorithm specified by the descriptor td */
PHP_FUNCTION(mcrypt_enc_get_iv_size)
{
MCRYPT_GET_TD_ARG
RETURN_LONG(mcrypt_enc_get_iv_size(pm->td));
}
/* }}} */
/* {{{ proto string mcrypt_enc_get_algorithms_name(resource td)
Returns the name of the algorithm specified by the descriptor td */
PHP_FUNCTION(mcrypt_enc_get_algorithms_name)
{
char *name;
MCRYPT_GET_TD_ARG
name = mcrypt_enc_get_algorithms_name(pm->td);
RETVAL_STRING(name);
mcrypt_free(name);
}
/* }}} */
/* {{{ proto string mcrypt_enc_get_modes_name(resource td)
Returns the name of the mode specified by the descriptor td */
PHP_FUNCTION(mcrypt_enc_get_modes_name)
{
char *name;
MCRYPT_GET_TD_ARG
name = mcrypt_enc_get_modes_name(pm->td);
RETVAL_STRING(name);
mcrypt_free(name);
}
/* }}} */
/* {{{ proto bool mcrypt_module_self_test(string algorithm [, string lib_dir])
Does a self test of the module "module" */
PHP_FUNCTION(mcrypt_module_self_test)
{
MCRYPT_GET_MODE_DIR_ARGS(algorithms_dir);
if (mcrypt_module_self_test(module, dir) == 0) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto bool mcrypt_module_is_block_algorithm_mode(string mode [, string lib_dir])
Returns TRUE if the mode is for use with block algorithms */
PHP_FUNCTION(mcrypt_module_is_block_algorithm_mode)
{
MCRYPT_GET_MODE_DIR_ARGS(modes_dir)
if (mcrypt_module_is_block_algorithm_mode(module, dir) == 1) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto bool mcrypt_module_is_block_algorithm(string algorithm [, string lib_dir])
Returns TRUE if the algorithm is a block algorithm */
PHP_FUNCTION(mcrypt_module_is_block_algorithm)
{
MCRYPT_GET_MODE_DIR_ARGS(algorithms_dir)
if (mcrypt_module_is_block_algorithm(module, dir) == 1) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto bool mcrypt_module_is_block_mode(string mode [, string lib_dir])
Returns TRUE if the mode outputs blocks of bytes */
PHP_FUNCTION(mcrypt_module_is_block_mode)
{
MCRYPT_GET_MODE_DIR_ARGS(modes_dir)
if (mcrypt_module_is_block_mode(module, dir) == 1) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto int mcrypt_module_get_algo_block_size(string algorithm [, string lib_dir])
Returns the block size of the algorithm */
PHP_FUNCTION(mcrypt_module_get_algo_block_size)
{
MCRYPT_GET_MODE_DIR_ARGS(algorithms_dir)
RETURN_LONG(mcrypt_module_get_algo_block_size(module, dir));
}
/* }}} */
/* {{{ proto int mcrypt_module_get_algo_key_size(string algorithm [, string lib_dir])
Returns the maximum supported key size of the algorithm */
PHP_FUNCTION(mcrypt_module_get_algo_key_size)
{
MCRYPT_GET_MODE_DIR_ARGS(algorithms_dir);
RETURN_LONG(mcrypt_module_get_algo_key_size(module, dir));
}
/* }}} */
/* {{{ proto array mcrypt_module_get_supported_key_sizes(string algorithm [, string lib_dir])
This function decrypts the crypttext */
PHP_FUNCTION(mcrypt_module_get_supported_key_sizes)
{
int i, count = 0;
int *key_sizes;
MCRYPT_GET_MODE_DIR_ARGS(algorithms_dir)
array_init(return_value);
key_sizes = mcrypt_module_get_algo_supported_key_sizes(module, dir, &count);
for (i = 0; i < count; i++) {
add_index_long(return_value, i, key_sizes[i]);
}
mcrypt_free(key_sizes);
}
/* }}} */
/* {{{ proto array mcrypt_list_algorithms([string lib_dir])
List all algorithms in "module_dir" */
PHP_FUNCTION(mcrypt_list_algorithms)
{
char **modules;
char *lib_dir = MCG(algorithms_dir);
size_t lib_dir_len;
int i, count;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|s",
&lib_dir, &lib_dir_len) == FAILURE) {
return;
}
array_init(return_value);
modules = mcrypt_list_algorithms(lib_dir, &count);
if (count == 0) {
php_error_docref(NULL, E_WARNING, "No algorithms found in module dir");
}
for (i = 0; i < count; i++) {
add_index_string(return_value, i, modules[i]);
}
mcrypt_free_p(modules, count);
}
/* }}} */
/* {{{ proto array mcrypt_list_modes([string lib_dir])
List all modes "module_dir" */
PHP_FUNCTION(mcrypt_list_modes)
{
char **modules;
char *lib_dir = MCG(modes_dir);
size_t lib_dir_len;
int i, count;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|s",
&lib_dir, &lib_dir_len) == FAILURE) {
return;
}
array_init(return_value);
modules = mcrypt_list_modes(lib_dir, &count);
if (count == 0) {
php_error_docref(NULL, E_WARNING, "No modes found in module dir");
}
for (i = 0; i < count; i++) {
add_index_string(return_value, i, modules[i]);
}
mcrypt_free_p(modules, count);
}
/* }}} */