11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Header file for iptables ipt_ECN target 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (C) 2002 by Harald Welte <laforge@gnumonks.org> 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This software is distributed under GNU GPL v2, 1991 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ipt_ECN.h,v 1.3 2002/05/29 12:17:40 laforge Exp 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds*/ 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef _IPT_ECN_TARGET_H 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define _IPT_ECN_TARGET_H 1106988b06935da7a210887e9d3f50f46f2faa4953Jan Engelhardt 1206988b06935da7a210887e9d3f50f46f2faa4953Jan Engelhardt#include <linux/types.h> 1393bb1e9d117bfc60306b2b8bd9e0fa7ba3c88636Jan Engelhardt#include <linux/netfilter/xt_DSCP.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1593bb1e9d117bfc60306b2b8bd9e0fa7ba3c88636Jan Engelhardt#define IPT_ECN_IP_MASK (~XT_DSCP_MASK) 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IPT_ECN_OP_SET_IP 0x01 /* set ECN bits of IPv4 header */ 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IPT_ECN_OP_SET_ECE 0x10 /* set ECE bit of TCP header */ 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IPT_ECN_OP_SET_CWR 0x20 /* set CWR bit of TCP header */ 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IPT_ECN_OP_MASK 0xce 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ipt_ECN_info { 240260c1dccc6a1018f8cf2c4778dffb47fc5d1c4cJan Engelhardt __u8 operation; /* bitset of operations */ 250260c1dccc6a1018f8cf2c4778dffb47fc5d1c4cJan Engelhardt __u8 ip_ect; /* ECT codepoint of IPv4 header, pre-shifted */ 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds union { 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct { 280260c1dccc6a1018f8cf2c4778dffb47fc5d1c4cJan Engelhardt __u8 ece:1, cwr:1; /* TCP ECT bits */ 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } tcp; 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } proto; 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* _IPT_ECN_TARGET_H */ 34