diff options
Diffstat (limited to 'linux/net/ipsec/alg/ipsec_alg_blowfish.c')
| -rw-r--r-- | linux/net/ipsec/alg/ipsec_alg_blowfish.c | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/linux/net/ipsec/alg/ipsec_alg_blowfish.c b/linux/net/ipsec/alg/ipsec_alg_blowfish.c deleted file mode 100644 index 6adc22b22..000000000 --- a/linux/net/ipsec/alg/ipsec_alg_blowfish.c +++ /dev/null @@ -1,142 +0,0 @@ -/* ipsec_alg BLOWFISH cipher stubs - * - * Author: JuanJo Ciarlante <jjo-ipsec@mendoza.gov.ar> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * RCS ID $Id: ipsec_alg_blowfish.c,v 1.3 2004/09/17 18:57:30 as Exp $ - */ - -#include <linux/config.h> -#include <linux/version.h> - -/* - * special case: ipsec core modular with this static algo inside: - * must avoid MODULE magic for this file - */ -#if CONFIG_IPSEC_MODULE && CONFIG_IPSEC_ALG_BLOWFISH -#undef MODULE -#endif - -#include <linux/module.h> -#include <linux/init.h> - -#include <linux/kernel.h> /* printk() */ -#include <linux/errno.h> /* error codes */ -#include <linux/types.h> /* size_t */ -#include <linux/string.h> - -/* Check if __exit is defined, if not null it */ -#ifndef __exit -#define __exit -#endif - -/* Low freeswan header coupling */ -#include "freeswan/ipsec_alg.h" -#include "libblowfish/blowfish.h" -#define blowfish_context BF_KEY - -#define ESP_BLOWFISH 7 /* truly _constant_ :) */ - -#define ESP_BLOWFISH_KEY_SZ_MIN 16 /* 128 bit secret key min */ -#define ESP_BLOWFISH_KEY_SZ 16 /* 128 bit secret key */ -#define ESP_BLOWFISH_KEY_SZ_MAX 56 /* 448 bit secret key max */ -#define ESP_BLOWFISH_CBC_BLK_LEN 8 /* block size */ - -MODULE_AUTHOR("JuanJo Ciarlante <jjo-ipsec@mendoza.gov.ar>"); -static int debug=0; -MODULE_PARM(debug, "i"); -static int test=0; -MODULE_PARM(test, "i"); -static int excl=0; -MODULE_PARM(excl, "i"); -static int keyminbits=0; -MODULE_PARM(keyminbits, "i"); -static int keymaxbits=0; -MODULE_PARM(keymaxbits, "i"); - -static int _blowfish_set_key(struct ipsec_alg_enc *alg, __u8 * key_e, const __u8 * key, size_t keysize) { - blowfish_context *ctx=(blowfish_context*)key_e; - if (debug > 0) - printk(KERN_DEBUG "klips_debug:_blowfish_set_key:" - "key_e=%p key=%p keysize=%d\n", - key_e, key, keysize); - BF_set_key(ctx, keysize, (unsigned char *)key); - return 0; -} -static int _blowfish_cbc_encrypt(struct ipsec_alg_enc *alg, __u8 * key_e, __u8 * in, int ilen, const __u8 *iv, int encrypt) { - /* blowfish toasts passed IV */ - __u8 iv_buf[ESP_BLOWFISH_CBC_BLK_LEN]; - blowfish_context *ctx=(blowfish_context*)key_e; - *((__u32*)&(iv_buf)) = ((__u32*)(iv))[0]; - *((__u32*)&(iv_buf)+1) = ((__u32*)(iv))[1]; - if (debug > 0) - printk(KERN_DEBUG "klips_debug:_blowfish_cbc_encrypt:" - "key_e=%p in=%p ilen=%d iv=%p encrypt=%d\n", - key_e, in, ilen, iv_buf, encrypt); - BF_cbc_encrypt(in, in, ilen, ctx, iv_buf, encrypt); - return ilen; -} -static struct ipsec_alg_enc ipsec_alg_BLOWFISH = { - ixt_version: IPSEC_ALG_VERSION, - ixt_module: THIS_MODULE, - ixt_refcnt: ATOMIC_INIT(0), - ixt_alg_type: IPSEC_ALG_TYPE_ENCRYPT, - ixt_alg_id: ESP_BLOWFISH, - ixt_name: "blowfish", - ixt_blocksize: ESP_BLOWFISH_CBC_BLK_LEN, - ixt_keyminbits: ESP_BLOWFISH_KEY_SZ_MIN*8, - ixt_keymaxbits: ESP_BLOWFISH_KEY_SZ_MAX*8, - ixt_e_keylen: ESP_BLOWFISH_KEY_SZ, - ixt_e_ctx_size: sizeof(blowfish_context), - ixt_e_set_key: _blowfish_set_key, - ixt_e_cbc_encrypt:_blowfish_cbc_encrypt, -}; - -IPSEC_ALG_MODULE_INIT(ipsec_blowfish_init) -{ - int ret, test_ret; - if (keyminbits) - ipsec_alg_BLOWFISH.ixt_keyminbits=keyminbits; - if (keymaxbits) { - ipsec_alg_BLOWFISH.ixt_keymaxbits=keymaxbits; - if (keymaxbits*8>ipsec_alg_BLOWFISH.ixt_keymaxbits) - ipsec_alg_BLOWFISH.ixt_e_keylen=keymaxbits*8; - } - if (excl) ipsec_alg_BLOWFISH.ixt_state |= IPSEC_ALG_ST_EXCL; - ret=register_ipsec_alg_enc(&ipsec_alg_BLOWFISH); - printk("ipsec_blowfish_init(alg_type=%d alg_id=%d name=%s): ret=%d\n", - ipsec_alg_BLOWFISH.ixt_alg_type, - ipsec_alg_BLOWFISH.ixt_alg_id, - ipsec_alg_BLOWFISH.ixt_name, - ret); - if (ret==0 && test) { - test_ret=ipsec_alg_test( - ipsec_alg_BLOWFISH.ixt_alg_type, - ipsec_alg_BLOWFISH.ixt_alg_id, - test); - printk("ipsec_blowfish_init(alg_type=%d alg_id=%d): test_ret=%d\n", - ipsec_alg_BLOWFISH.ixt_alg_type, - ipsec_alg_BLOWFISH.ixt_alg_id, - test_ret); - } - return ret; -} -IPSEC_ALG_MODULE_EXIT(ipsec_blowfish_fini) -{ - unregister_ipsec_alg_enc(&ipsec_alg_BLOWFISH); - return; -} -#ifdef MODULE_LICENSE -MODULE_LICENSE("GPL"); -#endif - -EXPORT_NO_SYMBOLS; |