mirror of
https://github.com/php/php-src.git
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353 lines
8.1 KiB
C
353 lines
8.1 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP version 4.0 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997, 1998, 1999 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.0 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available at through the world-wide-web at |
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| http://www.php.net/license/2_0.txt. |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Sascha Schumann <sascha@schumann.2ns.de> |
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+----------------------------------------------------------------------+
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*/
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#include "php.h"
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#if HAVE_LIBMCRYPT
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#include "php_mcrypt.h"
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#include "fcntl.h"
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#define NON_FREE
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#define MCRYPT2
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#include "mcrypt.h"
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function_entry mcrypt_functions[] = {
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PHP_FE(mcrypt_ecb, NULL)
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PHP_FE(mcrypt_cbc, NULL)
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PHP_FE(mcrypt_cfb, NULL)
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PHP_FE(mcrypt_ofb, NULL)
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PHP_FE(mcrypt_get_cipher_name, NULL)
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PHP_FE(mcrypt_get_block_size, NULL)
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PHP_FE(mcrypt_get_key_size, NULL)
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PHP_FE(mcrypt_create_iv, NULL)
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{0},
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};
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static PHP_MINIT_FUNCTION(mcrypt);
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zend_module_entry mcrypt_module_entry = {
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"mcrypt",
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mcrypt_functions,
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PHP_MINIT(mcrypt), NULL,
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NULL, NULL,
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NULL,
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STANDARD_MODULE_PROPERTIES,
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};
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#if 0
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typedef struct mcrypt_global_struct {
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int le_h;
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} mcrypt_global_struct;
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static mcrypt_global_struct mcryptg;
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#define MCRYPTG(x) mcryptg.x
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#endif
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#define MCRYPT_ARGS2 \
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pval *cipher, *data, *key, *mode; \
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int td; \
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char *ndata; \
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size_t bsize; \
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size_t nr; \
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size_t nsize
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#define MCRYPT_ARGS MCRYPT_ARGS2; pval *iv
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#define MCRYPT_CONVERT \
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convert_to_long(cipher); \
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convert_to_long(mode); \
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convert_to_string(data); \
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convert_to_string(key)
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#define MCRYPT_SIZE \
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bsize = get_block_size(cipher->value.lval); \
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nr = (data->value.str.len + bsize - 1) / bsize; \
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nsize = nr * bsize
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#define MCRYPT_CHECK_TD_CPY \
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if(td == -1) { \
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php_error(E_WARNING, MCRYPT_FAILED); \
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RETURN_FALSE; \
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} \
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ndata = ecalloc(nr, bsize); \
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memcpy(ndata, data->value.str.val, data->value.str.len)
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#define MCRYPT_CHECK_IV \
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convert_to_string(iv); \
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if(iv->value.str.len != bsize) { \
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php_error(E_WARNING, MCRYPT_IV_WRONG_SIZE); \
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RETURN_FALSE; \
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}
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#define MCRYPT_ACTION(x) \
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if(mode->value.lval == 0) \
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mcrypt_##x(td, ndata, nsize); \
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else \
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mdecrypt_##x(td, ndata, nsize); \
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end_mcrypt_##x(td)
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#define MCRYPT_IV_WRONG_SIZE "The IV paramater must be as long as the blocksize"
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#define MCRYPT_FAILED "mcrypt initialization failed"
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#define MCRYPT_ENTRY(a) REGISTER_LONG_CONSTANT("MCRYPT_" #a, a, CONST_PERSISTENT)
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static PHP_MINIT_FUNCTION(mcrypt)
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{
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/* modes for mcrypt_??? routines */
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REGISTER_LONG_CONSTANT("MCRYPT_ENCRYPT", 0, CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("MCRYPT_DECRYPT", 1, CONST_PERSISTENT);
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/* sources for mcrypt_create_iv */
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REGISTER_LONG_CONSTANT("MCRYPT_DEV_RANDOM", 0, CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("MCRYPT_DEV_URANDOM", 1, CONST_PERSISTENT);
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REGISTER_LONG_CONSTANT("MCRYPT_RAND", 2, CONST_PERSISTENT);
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/* ciphers */
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MCRYPT_ENTRY(BLOWFISH);
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MCRYPT_ENTRY(DES);
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MCRYPT_ENTRY(TripleDES);
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MCRYPT_ENTRY(ThreeWAY);
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MCRYPT_ENTRY(GOST);
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#ifdef CRYPT
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MCRYPT_ENTRY(CRYPT);
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#endif
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#ifdef DES_COMPAT
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MCRYPT_ENTRY(DES_COMPAT);
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#endif
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MCRYPT_ENTRY(SAFER64);
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MCRYPT_ENTRY(SAFER128);
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MCRYPT_ENTRY(CAST128);
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MCRYPT_ENTRY(TEAN);
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MCRYPT_ENTRY(RC2);
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#ifdef TWOFISH
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MCRYPT_ENTRY(TWOFISH);
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#elif defined(TWOFISH128)
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MCRYPT_ENTRY(TWOFISH128);
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MCRYPT_ENTRY(TWOFISH192);
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MCRYPT_ENTRY(TWOFISH256);
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#endif
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#ifdef RC6
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MCRYPT_ENTRY(RC6);
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#endif
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#ifdef IDEA
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MCRYPT_ENTRY(IDEA);
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#endif
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return SUCCESS;
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}
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typedef enum {
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RANDOM = 0,
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URANDOM,
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RAND
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} iv_source;
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/* proto mcrypt_create_iv(int size, int source)
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create an initializing vector (IV) */
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PHP_FUNCTION(mcrypt_create_iv)
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{
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pval *size, *psource;
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char *iv;
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iv_source source;
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int i;
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if(ARG_COUNT(ht) != 2 || getParameters(ht, 2, &size, &psource) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_long(size);
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convert_to_long(psource);
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source = psource->value.lval;
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i = size->value.lval;
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if(i <= 0) {
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php_error(E_WARNING, "illegal size input parameter");
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RETURN_FALSE;
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}
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iv = ecalloc(i, 1);
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if(source == RANDOM || source == URANDOM) {
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int fd;
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fd = open(source == RANDOM ? "/dev/random" : "/dev/urandom",
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O_RDONLY);
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if(fd < 0) {
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efree(iv);
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php_error(E_WARNING, "cannot open source device");
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RETURN_FALSE;
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}
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read(fd, iv, i);
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close(fd);
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} else {
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while(i) {
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iv[--i] = rand();
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}
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}
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RETURN_STRINGL(iv, size->value.lval, 0);
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}
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/* proto mcrypt_get_cipher_name(int cipher)
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get the name of cipher */
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PHP_FUNCTION(mcrypt_get_cipher_name)
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{
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pval *cipher;
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char *str, *nstr;
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if(ARG_COUNT(ht) != 1 || getParameters(ht, 1, &cipher) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_long(cipher);
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str = get_algorithms_name(cipher->value.lval);
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nstr = estrdup(str);
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free(str);
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RETURN_STRING(nstr, 0);
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}
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/* proto mcrypt_get_key_size(int cipher)
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get the key size of cipher */
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PHP_FUNCTION(mcrypt_get_key_size)
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{
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pval *cipher;
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if(ARG_COUNT(ht) != 1 || getParameters(ht, 1, &cipher) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_long(cipher);
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RETURN_LONG(get_key_size(cipher->value.lval));
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}
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/* proto mcrypt_get_block_size(int cipher)
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get the block size of cipher */
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PHP_FUNCTION(mcrypt_get_block_size)
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{
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pval *cipher;
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if(ARG_COUNT(ht) != 1 || getParameters(ht, 1, &cipher) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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convert_to_long(cipher);
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RETURN_LONG(get_block_size(cipher->value.lval));
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}
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/* proto mcrypt_ofb(int cipher, string key, string data, int mode, string iv)
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OFB crypt/decrypt data using key key with cipher cipher starting with iv */
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PHP_FUNCTION(mcrypt_ofb)
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{
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MCRYPT_ARGS;
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if(ARG_COUNT(ht) != 5 ||
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getParameters(ht, 5, &cipher, &key, &data, &mode, &iv) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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MCRYPT_CONVERT;
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MCRYPT_SIZE;
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MCRYPT_CHECK_IV;
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td = init_mcrypt_ofb(cipher->value.lval, key->value.str.val, key->value.str.len, iv->value.str.val);
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MCRYPT_CHECK_TD_CPY;
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MCRYPT_ACTION(ofb);
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RETURN_STRINGL(ndata, nsize, 0);
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}
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/* proto mcrypt_cfb(int cipher, string key, string data, int mode, string iv)
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CFB crypt/decrypt data using key key with cipher cipher starting with iv */
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PHP_FUNCTION(mcrypt_cfb)
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{
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MCRYPT_ARGS;
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if(ARG_COUNT(ht) != 5 ||
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getParameters(ht, 5, &cipher, &key, &data, &mode, &iv) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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MCRYPT_CONVERT;
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MCRYPT_SIZE;
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MCRYPT_CHECK_IV;
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td = init_mcrypt_cfb(cipher->value.lval, key->value.str.val, key->value.str.len, iv->value.str.val);
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MCRYPT_CHECK_TD_CPY;
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MCRYPT_ACTION(cfb);
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RETURN_STRINGL(ndata, nsize, 0);
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}
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/* proto mcrypt_cbc(int cipher, string key, string data, int mode [,string iv])
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CBC crypt/decrypt data using key key with cipher cipher using optional iv */
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PHP_FUNCTION(mcrypt_cbc)
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{
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MCRYPT_ARGS;
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int ac = ARG_COUNT(ht);
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if(ac < 4 || ac > 5 ||
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getParameters(ht, ac, &cipher, &key, &data, &mode, &iv) ==
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FAILURE) {
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WRONG_PARAM_COUNT;
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}
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MCRYPT_CONVERT;
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MCRYPT_SIZE;
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if(ac > 4) {
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MCRYPT_CHECK_IV;
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}
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td = init_mcrypt_cbc(cipher->value.lval, key->value.str.val, key->value.str.len);
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MCRYPT_CHECK_TD_CPY;
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if(ac > 4) {
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mcrypt(td, iv->value.str.val);
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}
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MCRYPT_ACTION(cbc);
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RETURN_STRINGL(ndata, nsize, 0);
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}
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/* proto mcrypt_ecb(int cipher, string key, string data, int mode)
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ECB crypt/decrypt data using key key with cipher cipher */
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PHP_FUNCTION(mcrypt_ecb)
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{
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MCRYPT_ARGS2;
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if(ARG_COUNT(ht) != 4 ||
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getParameters(ht, 4, &cipher, &key, &data, &mode) == FAILURE) {
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WRONG_PARAM_COUNT;
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}
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MCRYPT_CONVERT;
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MCRYPT_SIZE;
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td = init_mcrypt_ecb(cipher->value.lval, key->value.str.val, key->value.str.len);
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MCRYPT_CHECK_TD_CPY;
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MCRYPT_ACTION(ecb);
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RETURN_STRINGL(ndata, nsize, 0);
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}
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#endif
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