2 * 'raw' table, which is the very first hooked in at PRE_ROUTING and LOCAL_OUT .
4 * Copyright (C) 2003 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
6 #include <linux/module.h>
7 #include <linux/netfilter_ipv4/ip_tables.h>
9 #define RAW_VALID_HOOKS ((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_OUT))
14 struct ipt_entry entry;
15 struct ipt_standard_target target;
18 struct ipt_error_target
20 struct ipt_entry_target target;
21 char errorname[IPT_FUNCTION_MAXNAMELEN];
26 struct ipt_entry entry;
27 struct ipt_error_target target;
32 struct ipt_replace repl;
33 struct ipt_standard entries[2];
34 struct ipt_error term;
35 } initial_table __initdata
36 = { { "raw", RAW_VALID_HOOKS, 3,
37 sizeof(struct ipt_standard) * 2 + sizeof(struct ipt_error),
38 { [NF_IP_PRE_ROUTING] 0,
39 [NF_IP_LOCAL_OUT] sizeof(struct ipt_standard) },
40 { [NF_IP_PRE_ROUTING] 0,
41 [NF_IP_LOCAL_OUT] sizeof(struct ipt_standard) },
45 { { { { 0 }, { 0 }, { 0 }, { 0 }, "", "", { 0 }, { 0 }, 0, 0, 0 },
47 sizeof(struct ipt_entry),
48 sizeof(struct ipt_standard),
50 { { { { IPT_ALIGN(sizeof(struct ipt_standard_target)), "" } }, { } },
53 { { { { 0 }, { 0 }, { 0 }, { 0 }, "", "", { 0 }, { 0 }, 0, 0, 0 },
55 sizeof(struct ipt_entry),
56 sizeof(struct ipt_standard),
58 { { { { IPT_ALIGN(sizeof(struct ipt_standard_target)), "" } }, { } },
62 { { { { 0 }, { 0 }, { 0 }, { 0 }, "", "", { 0 }, { 0 }, 0, 0, 0 },
64 sizeof(struct ipt_entry),
65 sizeof(struct ipt_error),
67 { { { { IPT_ALIGN(sizeof(struct ipt_error_target)), IPT_ERROR_TARGET } },
74 static struct ipt_table packet_raw = {
76 .table = &initial_table.repl,
77 .valid_hooks = RAW_VALID_HOOKS,
78 .lock = RW_LOCK_UNLOCKED,
82 /* The work comes in here from netfilter.c. */
84 ipt_hook(unsigned int hook,
85 struct sk_buff **pskb,
86 const struct net_device *in,
87 const struct net_device *out,
88 int (*okfn)(struct sk_buff *))
90 return ipt_do_table(pskb, hook, in, out, &packet_raw, NULL);
93 /* 'raw' is the very first table. */
94 static struct nf_hook_ops ipt_ops[] = {
98 .hooknum = NF_IP_PRE_ROUTING,
99 .priority = NF_IP_PRI_RAW
104 .hooknum = NF_IP_LOCAL_OUT,
105 .priority = NF_IP_PRI_RAW
109 static int __init init(void)
114 ret = ipt_register_table(&packet_raw);
119 ret = nf_register_hook(&ipt_ops[0]);
123 ret = nf_register_hook(&ipt_ops[1]);
130 nf_unregister_hook(&ipt_ops[0]);
132 ipt_unregister_table(&packet_raw);
137 static void __exit fini(void)
141 for (i = 0; i < sizeof(ipt_ops)/sizeof(struct nf_hook_ops); i++)
142 nf_unregister_hook(&ipt_ops[i]);
144 ipt_unregister_table(&packet_raw);
149 MODULE_LICENSE("GPL");