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

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>

1 files changed, 6 insertions, 8 deletions

diff --git a/include/linux/netfilter_ipv4/ipt_dscp.h b/include/linux/netfilter_ipv4/ipt_dscp.h
index 2fa6dfe9289..4b82ca912b0 100644
--- a/include/linux/netfilter_ipv4/ipt_dscp.h
+++ b/include/linux/netfilter_ipv4/ipt_dscp.h
@@ -10,14 +10,12 @@
 #ifndef _IPT_DSCP_H
 #define _IPT_DSCP_H
 
-#define IPT_DSCP_MASK   0xfc    /* 11111100 */
-#define IPT_DSCP_SHIFT  2
-#define IPT_DSCP_MAX    0x3f    /* 00111111 */
+#include <linux/netfilter/xt_dscp.h>
 
-/* match info */
-struct ipt_dscp_info {
-        u_int8_t dscp;
-        u_int8_t invert;
-};
+#define IPT_DSCP_MASK   XT_DSCP_MASK
+#define IPT_DSCP_SHIFT  XT_DSCP_SHIFT
+#define IPT_DSCP_MAX    XT_DSCP_MAX
+
+#define ipt_dscp_info   xt_dscp_info
 
 #endif /* _IPT_DSCP_H */