r4sas/ts3init_linux_netfilter_module
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Read more about kernel namespaces and decided to go ahead with seperate object files

Browse Source
This commit is contained in:
Niels Werensteijn 2016-10-08 11:00:52 +02:00
parent 2e2a37d667
commit 4b157e1e2d
5 changed files with 29 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/Makefile
View File

@ -3,6 +3,7 @@ MODULES_DIR := /lib/modules/$(shell uname -r)
KERNEL_DIR := ${MODULES_DIR}/build
obj-m += xt_ts3init.o
xt_ts3init-objs += ts3init_module.o ts3init_match.o ts3init_cookie.o siphash24.o
all:
make -C ${KERNEL_DIR} M=$$PWD;

2
src/ts3init_cookie.c
View File

@ -62,7 +62,7 @@ static void check_update_seed_cache(time_t time, __u8 index,
crypto_free_hash(desc.tfm);
}
static __u8* get_cookie_seed(time_t current_time, __u8 packet_index,
__u8* get_cookie_seed(time_t current_time, __u8 packet_index,
struct xt_ts3init_cookie_cache* cache,
const __u8* cookie_seed)
{

4
src/ts3init_cookie.h
View File

@ -12,4 +12,8 @@ struct xt_ts3init_cookie_cache
__u8 __attribute__((aligned(8))) seed[SHA512_SIZE*2];
};
__u8* get_cookie_seed(time_t current_time, __u8 packet_index,
struct xt_ts3init_cookie_cache* cache,
const __u8* cookie_seed);
#endif /* _TS3INIT_COOKIE_H */

9
src/ts3init_match.c
View File

@ -280,3 +280,12 @@ static struct xt_match ts3init_mt_reg[] __read_mostly = {
},
};
int __init ts3init_match_init(void)
{
return xt_register_matches(ts3init_mt_reg, ARRAY_SIZE(ts3init_mt_reg));
}
void __exit ts3init_match_exit(void)
{
xt_unregister_matches(ts3init_mt_reg, ARRAY_SIZE(ts3init_mt_reg));
}

26
src/xt_ts3init.c → src/ts3init_module.c
View File

@ -2,9 +2,8 @@
* "ts3init" extension for Xtables
*
* Description: A module to aid in ts3 spoof protection
* This file just includes the actual code files so that
* we do not have to export unneed symbols to the kernel
* while stil organizing code into logical files.
* This file sets up the module load and remove functions
* and module meta data.
*
* Authors:
* Niels Werensteijn <niels werensteijn [at] teampseak com>, 2016-10-03
@ -14,9 +13,12 @@
* or 3 of the License, as published by the Free Software Foundation.
*/
#include "siphash24.c"
#include "ts3init_cookie.c"
#include "ts3init_match.c"
#include <linux/kernel.h>
#include <linux/netfilter/x_tables.h>
/* defined in ts3init_match.c */
int __init ts3init_match_init(void);
void __exit ts3init_match_exit(void);
MODULE_AUTHOR("Niels Werensteijn <niels.werensteijn@teamspeak.com>");
MODULE_DESCRIPTION("A module to aid in ts3 spoof protection");
@ -24,15 +26,15 @@ MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_ts3init");
MODULE_ALIAS("ip6t_ts3init");
static int __init ts3init_mt_init(void)
static int __init ts3init_init(void)
{
return xt_register_matches(ts3init_mt_reg, ARRAY_SIZE(ts3init_mt_reg));
return ts3init_match_init();
}
static void __exit ts3init_mt_exit(void)
static void __exit ts3init_exit(void)
{
xt_unregister_matches(ts3init_mt_reg, ARRAY_SIZE(ts3init_mt_reg));
ts3init_match_exit();
}
module_init(ts3init_mt_init);
module_exit(ts3init_mt_exit);
module_init(ts3init_init);
module_exit(ts3init_exit);