alistair23-linux/include/linux/netfilter/xt_dscp.h
Jan Engelhardt f1095ab51d [NETFILTER]: IPv6 capable xt_tos v1 match
Extends the xt_dscp match by xt_tos v1 to add support for selectively
matching any bit in the IPv4 TOS and IPv6 Priority fields. (ipt_tos
and xt_dscp only accepted a limited range of possible values.)

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 14:56:00 -08:00

30 lines
632 B
C

/* x_tables module for matching the IPv4/IPv6 DSCP field
*
* (C) 2002 Harald Welte <laforge@gnumonks.org>
* This software is distributed under GNU GPL v2, 1991
*
* See RFC2474 for a description of the DSCP field within the IP Header.
*
* xt_dscp.h,v 1.3 2002/08/05 19:00:21 laforge Exp
*/
#ifndef _XT_DSCP_H
#define _XT_DSCP_H
#define XT_DSCP_MASK 0xfc /* 11111100 */
#define XT_DSCP_SHIFT 2
#define XT_DSCP_MAX 0x3f /* 00111111 */
/* match info */
struct xt_dscp_info {
u_int8_t dscp;
u_int8_t invert;
};
struct xt_tos_match_info {
u_int8_t tos_mask;
u_int8_t tos_value;
u_int8_t invert;
};
#endif /* _XT_DSCP_H */