diff options
Diffstat (limited to 'include/uapi/linux/netfilter_ipv4/ipt_ECN.h')
| -rw-r--r-- | include/uapi/linux/netfilter_ipv4/ipt_ECN.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/uapi/linux/netfilter_ipv4/ipt_ECN.h b/include/uapi/linux/netfilter_ipv4/ipt_ECN.h new file mode 100644 index 000000000000..bb88d5315a4d --- /dev/null +++ b/include/uapi/linux/netfilter_ipv4/ipt_ECN.h @@ -0,0 +1,33 @@ +/* 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 */ |