diff options
author | Bart De Schuymer <bdschuym@pandora.be> | 2003-05-03 18:13:34 +0000 |
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committer | Bart De Schuymer <bdschuym@pandora.be> | 2003-05-03 18:13:34 +0000 |
commit | 8f3864732f38c72c018138269b3e2109c3b3cd40 (patch) | |
tree | 4158e922d1934f2a4b8287c54009a02daa5be30a /kernel/linux2.5/net/bridge/netfilter/ebt_pkttype.c | |
parent | a3d12c061c5143c29de790a342a36e434aa3e728 (diff) |
update to 2.5.68+pkttype
Diffstat (limited to 'kernel/linux2.5/net/bridge/netfilter/ebt_pkttype.c')
-rw-r--r-- | kernel/linux2.5/net/bridge/netfilter/ebt_pkttype.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/kernel/linux2.5/net/bridge/netfilter/ebt_pkttype.c b/kernel/linux2.5/net/bridge/netfilter/ebt_pkttype.c new file mode 100644 index 0000000..f6458ad --- /dev/null +++ b/kernel/linux2.5/net/bridge/netfilter/ebt_pkttype.c @@ -0,0 +1,59 @@ +/* + * ebt_pkttype + * + * Authors: + * Bart De Schuymer <bdschuym@pandora.be> + * + * April, 2003 + * + */ + +#include <linux/netfilter_bridge/ebtables.h> +#include <linux/netfilter_bridge/ebt_pkttype.h> +#include <linux/module.h> + +static int ebt_filter_pkttype(const struct sk_buff *skb, + const struct net_device *in, + const struct net_device *out, + const void *data, + unsigned int datalen) +{ + struct ebt_pkttype_info *info = (struct ebt_pkttype_info *)data; + + return (skb->pkt_type != info->pkt_type) ^ info->invert; +} + +static int ebt_pkttype_check(const char *tablename, unsigned int hookmask, + const struct ebt_entry *e, void *data, unsigned int datalen) +{ + struct ebt_pkttype_info *info = (struct ebt_pkttype_info *)data; + + if (datalen != sizeof(struct ebt_pkttype_info)) + return -EINVAL; + if (info->invert != 0 && info->invert != 1) + return -EINVAL; + /* Allow any pkt_type value */ + return 0; +} + +static struct ebt_match filter_pkttype = +{ + .name = EBT_PKTTYPE_MATCH, + .match = ebt_filter_pkttype, + .check = ebt_pkttype_check, + .me = THIS_MODULE, +}; + +static int __init init(void) +{ + return ebt_register_match(&filter_pkttype); +} + +static void __exit fini(void) +{ + ebt_unregister_match(&filter_pkttype); +} + +module_init(init); +module_exit(fini); +MODULE_LICENSE("GPL"); |