a45049c51c
Set the family field in xt_[matches|targets] registered. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
94 lines
2.1 KiB
C
94 lines
2.1 KiB
C
/* Kernel module to match NFMARK values. */
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/* (C) 1999-2001 Marc Boucher <marc@mbsi.ca>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/skbuff.h>
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#include <linux/netfilter/xt_mark.h>
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#include <linux/netfilter/x_tables.h>
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Marc Boucher <marc@mbsi.ca>");
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MODULE_DESCRIPTION("iptables mark matching module");
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MODULE_ALIAS("ipt_mark");
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MODULE_ALIAS("ip6t_mark");
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static int
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match(const struct sk_buff *skb,
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const struct net_device *in,
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const struct net_device *out,
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const struct xt_match *match,
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const void *matchinfo,
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int offset,
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unsigned int protoff,
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int *hotdrop)
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{
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const struct xt_mark_info *info = matchinfo;
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return ((skb->nfmark & info->mask) == info->mark) ^ info->invert;
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}
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static int
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checkentry(const char *tablename,
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const void *entry,
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const struct xt_match *match,
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void *matchinfo,
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unsigned int matchsize,
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unsigned int hook_mask)
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{
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struct xt_mark_info *minfo = (struct xt_mark_info *) matchinfo;
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if (minfo->mark > 0xffffffff || minfo->mask > 0xffffffff) {
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printk(KERN_WARNING "mark: only supports 32bit mark\n");
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return 0;
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}
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return 1;
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}
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static struct xt_match mark_match = {
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.name = "mark",
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.match = match,
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.matchsize = sizeof(struct xt_mark_info),
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.checkentry = checkentry,
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.family = AF_INET,
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.me = THIS_MODULE,
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};
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static struct xt_match mark6_match = {
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.name = "mark",
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.match = match,
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.matchsize = sizeof(struct xt_mark_info),
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.checkentry = checkentry,
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.family = AF_INET6,
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.me = THIS_MODULE,
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};
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static int __init init(void)
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{
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int ret;
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ret = xt_register_match(&mark_match);
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if (ret)
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return ret;
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ret = xt_register_match(&mark6_match);
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if (ret)
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xt_unregister_match(&mark_match);
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return ret;
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}
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static void __exit fini(void)
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{
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xt_unregister_match(&mark_match);
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xt_unregister_match(&mark6_match);
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}
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module_init(init);
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module_exit(fini);
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