Contributors: 9
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Harald Welte |
217 |
66.98% |
3 |
13.04% |
| Patrick McHardy |
39 |
12.04% |
4 |
17.39% |
| Jan Engelhardt |
30 |
9.26% |
8 |
34.78% |
| Arnaldo Carvalho de Melo |
21 |
6.48% |
3 |
13.04% |
| Art Haas |
12 |
3.70% |
1 |
4.35% |
| Thomas Gleixner |
2 |
0.62% |
1 |
4.35% |
| Yasuyuki Kozakai |
1 |
0.31% |
1 |
4.35% |
| Hideaki Yoshifuji / 吉藤英明 |
1 |
0.31% |
1 |
4.35% |
| Alexey Dobriyan |
1 |
0.31% |
1 |
4.35% |
| Total |
324 |
|
23 |
|
// SPDX-License-Identifier: GPL-2.0-only
/* Kernel module to match EUI64 address parameters. */
/* (C) 2001-2002 Andras Kis-Szabo <kisza@sch.bme.hu>
*/
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/ipv6.h>
#include <linux/if_ether.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter_ipv6/ip6_tables.h>
MODULE_DESCRIPTION("Xtables: IPv6 EUI64 address match");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Andras Kis-Szabo <kisza@sch.bme.hu>");
static bool
eui64_mt6(const struct sk_buff *skb, struct xt_action_param *par)
{
unsigned char eui64[8];
if (!(skb_mac_header(skb) >= skb->head &&
skb_mac_header(skb) + ETH_HLEN <= skb->data) &&
par->fragoff != 0) {
par->hotdrop = true;
return false;
}
memset(eui64, 0, sizeof(eui64));
if (eth_hdr(skb)->h_proto == htons(ETH_P_IPV6)) {
if (ipv6_hdr(skb)->version == 0x6) {
memcpy(eui64, eth_hdr(skb)->h_source, 3);
memcpy(eui64 + 5, eth_hdr(skb)->h_source + 3, 3);
eui64[3] = 0xff;
eui64[4] = 0xfe;
eui64[0] ^= 0x02;
if (!memcmp(ipv6_hdr(skb)->saddr.s6_addr + 8, eui64,
sizeof(eui64)))
return true;
}
}
return false;
}
static struct xt_match eui64_mt6_reg __read_mostly = {
.name = "eui64",
.family = NFPROTO_IPV6,
.match = eui64_mt6,
.matchsize = sizeof(int),
.hooks = (1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_IN) |
(1 << NF_INET_FORWARD),
.me = THIS_MODULE,
};
static int __init eui64_mt6_init(void)
{
return xt_register_match(&eui64_mt6_reg);
}
static void __exit eui64_mt6_exit(void)
{
xt_unregister_match(&eui64_mt6_reg);
}
module_init(eui64_mt6_init);
module_exit(eui64_mt6_exit);