projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
| 1fddf4ba PNA |
2 | /* |
| 3 | * (C) 2016 by Pablo Neira Ayuso <pablo@netfilter.org> | |
| 1fddf4ba PNA |
4 | */ |
| 5 | ||
| 6 | #include <linux/module.h> | |
| 7 | #include <linux/spinlock.h> | |
| 8 | #include <linux/skbuff.h> | |
| 9 | #include <linux/ip.h> | |
| 10 | #include <net/route.h> | |
| 11 | ||
| 12 | #include <linux/netfilter.h> | |
| 13 | #include <net/netfilter/nf_log.h> | |
| 14 | ||
| 15 | static void nf_log_netdev_packet(struct net *net, u_int8_t pf, | |
| 16 | unsigned int hooknum, | |
| 17 | const struct sk_buff *skb, | |
| 18 | const struct net_device *in, | |
| 19 | const struct net_device *out, | |
| 20 | const struct nf_loginfo *loginfo, | |
| 21 | const char *prefix) | |
| 22 | { | |
| 673ab46f LZ |
23 | nf_log_l2packet(net, pf, skb->protocol, hooknum, skb, in, out, |
| 24 | loginfo, prefix); | |
| 1fddf4ba PNA |
25 | } |
| 26 | ||
| 27 | static struct nf_logger nf_netdev_logger __read_mostly = { | |
| 28 | .name = "nf_log_netdev", | |
| 29 | .type = NF_LOG_TYPE_LOG, | |
| 30 | .logfn = nf_log_netdev_packet, | |
| 31 | .me = THIS_MODULE, | |
| 32 | }; | |
| 33 | ||
| 34 | static int __net_init nf_log_netdev_net_init(struct net *net) | |
| 35 | { | |
| 36 | return nf_log_set(net, NFPROTO_NETDEV, &nf_netdev_logger); | |
| 37 | } | |
| 38 | ||
| 39 | static void __net_exit nf_log_netdev_net_exit(struct net *net) | |
| 40 | { | |
| 41 | nf_log_unset(net, &nf_netdev_logger); | |
| 42 | } | |
| 43 | ||
| 44 | static struct pernet_operations nf_log_netdev_net_ops = { | |
| 45 | .init = nf_log_netdev_net_init, | |
| 46 | .exit = nf_log_netdev_net_exit, | |
| 47 | }; | |
| 48 | ||
| 49 | static int __init nf_log_netdev_init(void) | |
| 50 | { | |
| 51 | int ret; | |
| 52 | ||
| 53 | /* Request to load the real packet loggers. */ | |
| 54 | nf_logger_request_module(NFPROTO_IPV4, NF_LOG_TYPE_LOG); | |
| 55 | nf_logger_request_module(NFPROTO_IPV6, NF_LOG_TYPE_LOG); | |
| 56 | nf_logger_request_module(NFPROTO_ARP, NF_LOG_TYPE_LOG); | |
| 57 | ||
| 58 | ret = register_pernet_subsys(&nf_log_netdev_net_ops); | |
| 59 | if (ret < 0) | |
| 60 | return ret; | |
| 61 | ||
| 62 | nf_log_register(NFPROTO_NETDEV, &nf_netdev_logger); | |
| 63 | return 0; | |
| 64 | } | |
| 65 | ||
| 66 | static void __exit nf_log_netdev_exit(void) | |
| 67 | { | |
| 68 | unregister_pernet_subsys(&nf_log_netdev_net_ops); | |
| 69 | nf_log_unregister(&nf_netdev_logger); | |
| 70 | } | |
| 71 | ||
| 72 | module_init(nf_log_netdev_init); | |
| 73 | module_exit(nf_log_netdev_exit); | |
| 74 | ||
| 75 | MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>"); | |
| 76 | MODULE_DESCRIPTION("Netfilter netdev packet logging"); | |
| 77 | MODULE_LICENSE("GPL"); | |
| 78 | MODULE_ALIAS_NF_LOGGER(5, 0); /* NFPROTO_NETDEV */ |