mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-10-19 18:09:05 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/* (C) 1999-2001 Michal Ludvig <michal@logix.cz>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/if_ether.h>
|
|
#include <linux/if_packet.h>
|
|
|
|
#include <linux/netfilter_ipv4/ipt_pkttype.h>
|
|
#include <linux/netfilter_ipv4/ip_tables.h>
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Michal Ludvig <michal@logix.cz>");
|
|
MODULE_DESCRIPTION("IP tables match to match on linklayer packet type");
|
|
|
|
static int match(const struct sk_buff *skb,
|
|
const struct net_device *in,
|
|
const struct net_device *out,
|
|
const void *matchinfo,
|
|
int offset,
|
|
int *hotdrop)
|
|
{
|
|
const struct ipt_pkttype_info *info = matchinfo;
|
|
|
|
return (skb->pkt_type == info->pkttype) ^ info->invert;
|
|
}
|
|
|
|
static int checkentry(const char *tablename,
|
|
const struct ipt_ip *ip,
|
|
void *matchinfo,
|
|
unsigned int matchsize,
|
|
unsigned int hook_mask)
|
|
{
|
|
/*
|
|
if (hook_mask
|
|
& ~((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_IN)
|
|
| (1 << NF_IP_FORWARD))) {
|
|
printk("ipt_pkttype: only valid for PRE_ROUTING, LOCAL_IN or FORWARD.\n");
|
|
return 0;
|
|
}
|
|
*/
|
|
if (matchsize != IPT_ALIGN(sizeof(struct ipt_pkttype_info)))
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static struct ipt_match pkttype_match = {
|
|
.name = "pkttype",
|
|
.match = &match,
|
|
.checkentry = &checkentry,
|
|
.me = THIS_MODULE,
|
|
};
|
|
|
|
static int __init init(void)
|
|
{
|
|
return ipt_register_match(&pkttype_match);
|
|
}
|
|
|
|
static void __exit fini(void)
|
|
{
|
|
ipt_unregister_match(&pkttype_match);
|
|
}
|
|
|
|
module_init(init);
|
|
module_exit(fini);
|