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[NETFILTER]: x_tables: replace IPv4 dscp match by address family independent version

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This replaces IPv4 dscp match by address family independent version.
This also
	- utilizes dsfield.h to get the DS field in IPv4/IPv6 header, and
	- checks for the DSCP value from user space.
	- fixes Kconfig help text.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yasuyuki Kozakai
2006-08-22 00:29:37 -07:00
committed by David S. Miller
parent 131852176c
commit 9ba1627617
8 changed files with 154 additions and 74 deletions
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23
include/linux/netfilter/xt_dscp.h Normal file
View File

@@ -0,0 +1,23 @@
/* 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;
};
#endif /* _XT_DSCP_H */