Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* Header file for iptables ipt_ECN target |
| 2 | * |
| 3 | * (C) 2002 by Harald Welte <laforge@gnumonks.org> |
| 4 | * |
| 5 | * This software is distributed under GNU GPL v2, 1991 |
| 6 | * |
| 7 | * ipt_ECN.h,v 1.3 2002/05/29 12:17:40 laforge Exp |
| 8 | */ |
| 9 | #ifndef _IPT_ECN_TARGET_H |
| 10 | #define _IPT_ECN_TARGET_H |
| 11 | #include <linux/netfilter_ipv4/ipt_DSCP.h> |
| 12 | |
| 13 | #define IPT_ECN_IP_MASK (~IPT_DSCP_MASK) |
| 14 | |
| 15 | #define IPT_ECN_OP_SET_IP 0x01 /* set ECN bits of IPv4 header */ |
| 16 | #define IPT_ECN_OP_SET_ECE 0x10 /* set ECE bit of TCP header */ |
| 17 | #define IPT_ECN_OP_SET_CWR 0x20 /* set CWR bit of TCP header */ |
| 18 | |
| 19 | #define IPT_ECN_OP_MASK 0xce |
| 20 | |
| 21 | struct ipt_ECN_info { |
| 22 | u_int8_t operation; /* bitset of operations */ |
| 23 | u_int8_t ip_ect; /* ECT codepoint of IPv4 header, pre-shifted */ |
| 24 | union { |
| 25 | struct { |
| 26 | u_int8_t ece:1, cwr:1; /* TCP ECT bits */ |
| 27 | } tcp; |
| 28 | } proto; |
| 29 | }; |
| 30 | |
| 31 | #endif /* _IPT_ECN_TARGET_H */ |