[mirror_ubuntu-eoan-kernel.git] / include / uapi / linux / netfilter_ipv4 / ipt_ECN.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/* Header file for iptables ipt_ECN target
 *
 * (C) 2002 by Harald Welte <laforge@gnumonks.org>
 *
 * This software is distributed under GNU GPL v2, 1991
 * 
 * ipt_ECN.h,v 1.3 2002/05/29 12:17:40 laforge Exp
*/
#ifndef _IPT_ECN_TARGET_H
#define _IPT_ECN_TARGET_H

#include <linux/types.h>
#include <linux/netfilter/xt_DSCP.h>

#define IPT_ECN_IP_MASK	(~XT_DSCP_MASK)

#define IPT_ECN_OP_SET_IP	0x01	/* set ECN bits of IPv4 header */
#define IPT_ECN_OP_SET_ECE	0x10	/* set ECE bit of TCP header */
#define IPT_ECN_OP_SET_CWR	0x20	/* set CWR bit of TCP header */

#define IPT_ECN_OP_MASK		0xce

struct ipt_ECN_info {
	__u8 operation;	/* bitset of operations */
	__u8 ip_ect;	/* ECT codepoint of IPv4 header, pre-shifted */
	union {
		struct {
			__u8 ece:1, cwr:1; /* TCP ECT bits */
		} tcp;
	} proto;
};

#endif /* _IPT_ECN_TARGET_H */
Commit	Line	Data
e2be04c7	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
1da177e4 LT	2	/* Header file for iptables ipt_ECN target
	3	*
	4	* (C) 2002 by Harald Welte <laforge@gnumonks.org>
	5	*
	6	* This software is distributed under GNU GPL v2, 1991
	7	*
	8	* ipt_ECN.h,v 1.3 2002/05/29 12:17:40 laforge Exp
	9	*/
	10	#ifndef _IPT_ECN_TARGET_H
	11	#define _IPT_ECN_TARGET_H
06988b06 JE	12
06988b06 JE	13	#include <linux/types.h>
93bb1e9d	14	#include <linux/netfilter/xt_DSCP.h>
1da177e4	15
93bb1e9d	16	#define IPT_ECN_IP_MASK (~XT_DSCP_MASK)
1da177e4 LT	17
	18	#define IPT_ECN_OP_SET_IP 0x01 /* set ECN bits of IPv4 header */
	19	#define IPT_ECN_OP_SET_ECE 0x10 /* set ECE bit of TCP header */
	20	#define IPT_ECN_OP_SET_CWR 0x20 /* set CWR bit of TCP header */
	21
	22	#define IPT_ECN_OP_MASK 0xce
	23
	24	struct ipt_ECN_info {
0260c1dc JE	25	__u8 operation; /* bitset of operations */
0260c1dc JE	26	__u8 ip_ect; /* ECT codepoint of IPv4 header, pre-shifted */
1da177e4 LT	27	union {
1da177e4 LT	28	struct {
0260c1dc	29	__u8 ece:1, cwr:1; /* TCP ECT bits */
1da177e4 LT	30	} tcp;
	31	} proto;
	32	};
	33
	34	#endif /* _IPT_ECN_TARGET_H */