Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __LINUX_BRIDGE_NETFILTER_H |
| 2 | #define __LINUX_BRIDGE_NETFILTER_H |
| 3 | |
David Howells | 607ca46 | 2012-10-13 10:46:48 +0100 | [diff] [blame] | 4 | #include <uapi/linux/netfilter_bridge.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | |
| 7 | enum nf_br_hook_priorities { |
| 8 | NF_BR_PRI_FIRST = INT_MIN, |
| 9 | NF_BR_PRI_NAT_DST_BRIDGED = -300, |
| 10 | NF_BR_PRI_FILTER_BRIDGED = -200, |
| 11 | NF_BR_PRI_BRNF = 0, |
| 12 | NF_BR_PRI_NAT_DST_OTHER = 100, |
| 13 | NF_BR_PRI_FILTER_OTHER = 200, |
| 14 | NF_BR_PRI_NAT_SRC = 300, |
| 15 | NF_BR_PRI_LAST = INT_MAX, |
| 16 | }; |
| 17 | |
Pablo Neira Ayuso | 34666d4 | 2014-09-18 11:29:03 +0200 | [diff] [blame] | 18 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | |
| 20 | #define BRNF_PKT_TYPE 0x01 |
| 21 | #define BRNF_BRIDGED_DNAT 0x02 |
Bart De Schuymer | ea2d9b4 | 2010-04-15 12:14:51 +0200 | [diff] [blame] | 22 | #define BRNF_NF_BRIDGE_PREROUTING 0x08 |
Bart De Schuymer | e179e63 | 2010-04-15 12:26:39 +0200 | [diff] [blame] | 23 | #define BRNF_8021Q 0x10 |
| 24 | #define BRNF_PPPoE 0x20 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | |
Bart De Schuymer | 6c79bf0 | 2010-04-20 16:22:01 +0200 | [diff] [blame] | 26 | static inline unsigned int nf_bridge_mtu_reduction(const struct sk_buff *skb) |
| 27 | { |
| 28 | if (unlikely(skb->nf_bridge->mask & BRNF_PPPoE)) |
| 29 | return PPPOE_SES_HLEN; |
| 30 | return 0; |
| 31 | } |
| 32 | |
Joe Perches | a0f4ecf | 2013-09-26 14:48:15 -0700 | [diff] [blame] | 33 | int br_handle_frame_finish(struct sk_buff *skb); |
Bart De Schuymer | ea2d9b4 | 2010-04-15 12:14:51 +0200 | [diff] [blame] | 34 | |
Peter Huang (Peng) | a881e96 | 2012-04-19 20:12:51 +0000 | [diff] [blame] | 35 | static inline void br_drop_fake_rtable(struct sk_buff *skb) |
| 36 | { |
| 37 | struct dst_entry *dst = skb_dst(skb); |
| 38 | |
| 39 | if (dst && (dst->flags & DST_FAKE_RTABLE)) |
| 40 | skb_dst_drop(skb); |
| 41 | } |
| 42 | |
Stephen Hemminger | 07317621 | 2006-08-29 17:48:17 -0700 | [diff] [blame] | 43 | #else |
Peter Huang (Peng) | a881e96 | 2012-04-19 20:12:51 +0000 | [diff] [blame] | 44 | #define br_drop_fake_rtable(skb) do { } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | #endif /* CONFIG_BRIDGE_NETFILTER */ |
| 46 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | #endif |