2 * (C) 2014 by Pablo Neira Ayuso <pablo@netfilter.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
9 #include <linux/module.h>
10 #include <linux/spinlock.h>
11 #include <linux/skbuff.h>
12 #include <linux/if_bridge.h>
14 #include <net/route.h>
16 #include <linux/netfilter.h>
17 #include <net/netfilter/nf_log.h>
19 static void nf_log_bridge_packet(struct net
*net
, u_int8_t pf
,
21 const struct sk_buff
*skb
,
22 const struct net_device
*in
,
23 const struct net_device
*out
,
24 const struct nf_loginfo
*loginfo
,
27 nf_log_l2packet(net
, pf
, eth_hdr(skb
)->h_proto
, hooknum
, skb
,
28 in
, out
, loginfo
, prefix
);
31 static struct nf_logger nf_bridge_logger __read_mostly
= {
32 .name
= "nf_log_bridge",
33 .type
= NF_LOG_TYPE_LOG
,
34 .logfn
= nf_log_bridge_packet
,
38 static int __net_init
nf_log_bridge_net_init(struct net
*net
)
40 return nf_log_set(net
, NFPROTO_BRIDGE
, &nf_bridge_logger
);
43 static void __net_exit
nf_log_bridge_net_exit(struct net
*net
)
45 nf_log_unset(net
, &nf_bridge_logger
);
48 static struct pernet_operations nf_log_bridge_net_ops
= {
49 .init
= nf_log_bridge_net_init
,
50 .exit
= nf_log_bridge_net_exit
,
53 static int __init
nf_log_bridge_init(void)
57 /* Request to load the real packet loggers. */
58 nf_logger_request_module(NFPROTO_IPV4
, NF_LOG_TYPE_LOG
);
59 nf_logger_request_module(NFPROTO_IPV6
, NF_LOG_TYPE_LOG
);
60 nf_logger_request_module(NFPROTO_ARP
, NF_LOG_TYPE_LOG
);
62 ret
= register_pernet_subsys(&nf_log_bridge_net_ops
);
66 nf_log_register(NFPROTO_BRIDGE
, &nf_bridge_logger
);
70 static void __exit
nf_log_bridge_exit(void)
72 unregister_pernet_subsys(&nf_log_bridge_net_ops
);
73 nf_log_unregister(&nf_bridge_logger
);
76 module_init(nf_log_bridge_init
);
77 module_exit(nf_log_bridge_exit
);
79 MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");
80 MODULE_DESCRIPTION("Netfilter bridge packet logging");
81 MODULE_LICENSE("GPL");
82 MODULE_ALIAS_NF_LOGGER(AF_BRIDGE
, 0);