projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| dd705072 PNA |
1 | /* |
| 2 | * (C) 2012 by Pablo Neira Ayuso <[email protected]> | |
| 3 | * (C) 2012 by Vyatta Inc. <http://www.vyatta.com> | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify | |
| 6 | * it under the terms of the GNU General Public License version 2 as | |
| 7 | * published by the Free Software Foundation (or any later at your option). | |
| 8 | */ | |
| 9 | ||
| 10 | #include <linux/types.h> | |
| 11 | #include <linux/netfilter.h> | |
| 12 | #include <linux/skbuff.h> | |
| 13 | #include <linux/vmalloc.h> | |
| 14 | #include <linux/stddef.h> | |
| 15 | #include <linux/err.h> | |
| 16 | #include <linux/percpu.h> | |
| 17 | #include <linux/kernel.h> | |
| 18 | #include <linux/netdevice.h> | |
| 19 | #include <linux/slab.h> | |
| 20 | #include <linux/export.h> | |
| 21 | ||
| 22 | #include <net/netfilter/nf_conntrack.h> | |
| 23 | #include <net/netfilter/nf_conntrack_core.h> | |
| 24 | #include <net/netfilter/nf_conntrack_extend.h> | |
| 25 | #include <net/netfilter/nf_conntrack_timeout.h> | |
| 26 | ||
| 27 | struct ctnl_timeout * | |
| 28 | (*nf_ct_timeout_find_get_hook)(const char *name) __read_mostly; | |
| 29 | EXPORT_SYMBOL_GPL(nf_ct_timeout_find_get_hook); | |
| 30 | ||
| 31 | void (*nf_ct_timeout_put_hook)(struct ctnl_timeout *timeout) __read_mostly; | |
| 32 | EXPORT_SYMBOL_GPL(nf_ct_timeout_put_hook); | |
| 33 | ||
| 34 | static struct nf_ct_ext_type timeout_extend __read_mostly = { | |
| 35 | .len = sizeof(struct nf_conn_timeout), | |
| 36 | .align = __alignof__(struct nf_conn_timeout), | |
| 37 | .id = NF_CT_EXT_TIMEOUT, | |
| 38 | }; | |
| 39 | ||
| 40 | int nf_conntrack_timeout_init(struct net *net) | |
| 41 | { | |
| 42 | int ret = 0; | |
| 43 | ||
| 44 | if (net_eq(net, &init_net)) { | |
| 45 | ret = nf_ct_extend_register(&timeout_extend); | |
| 46 | if (ret < 0) { | |
| 47 | printk(KERN_ERR "nf_ct_timeout: Unable to register " | |
| 48 | "timeout extension.\n"); | |
| 49 | return ret; | |
| 50 | } | |
| 51 | } | |
| 52 | ||
| 53 | return 0; | |
| 54 | } | |
| 55 | ||
| 56 | void nf_conntrack_timeout_fini(struct net *net) | |
| 57 | { | |
| 58 | if (net_eq(net, &init_net)) | |
| 59 | nf_ct_extend_unregister(&timeout_extend); | |
| 60 | } |