| 1 | |
| 2 | |
| 3 | * Implements a dummy match to allow attaching comments to rules
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| 4 | *
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| 5 | * 2003-05-13 Brad Fisher ([email protected])
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| 6 |
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| 7 |
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| 8 | #include <linux/module.h>
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| 9 | #include <linux/skbuff.h>
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| 10 | #include <linux/netfilter/x_tables.h>
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| 11 | #include <linux/netfilter/xt_comment.h>
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| 12 |
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| 13 | MODULE_AUTHOR("Brad Fisher <[email protected]>");
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| 14 | MODULE_DESCRIPTION("Xtables: No-op match which can be tagged with a comment");
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| 15 | MODULE_LICENSE("GPL");
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| 16 | MODULE_ALIAS("ipt_comment");
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| 17 | MODULE_ALIAS("ip6t_comment");
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| 18 |
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| 19 | static bool
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| 20 | comment_mt(const struct sk_buff *skb, struct xt_action_param *par)
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| 21 | {
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| 22 |
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| 23 | return true;
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| 24 | }
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| 25 |
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| 26 | static struct xt_match comment_mt_reg __read_mostly = {
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| 27 | .name = "comment",
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| 28 | .revision = 0,
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| 29 | .family = NFPROTO_UNSPEC,
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| 30 | .match = comment_mt,
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| 31 | .matchsize = sizeof(struct xt_comment_info),
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| 32 | .me = THIS_MODULE,
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| 33 | };
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| 34 |
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| 35 | static int __init comment_mt_init(void)
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| 36 | {
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| 37 | return xt_register_match(&comment_mt_reg);
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| 38 | }
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| 39 |
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| 40 | static void __exit comment_mt_exit(void)
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| 41 | {
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| 42 | xt_unregister_match(&comment_mt_reg);
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| 43 | }
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| 44 |
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| 45 | module_init(comment_mt_init);
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| 46 | module_exit(comment_mt_exit);
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