svn commit: r285669 - head/sys/netinet

[Kevin Lo]

Author: kevlo
Date: Sat Jul 18 06:48:30 2015
New Revision: 285669
URL: https://svnweb.freebsd.org/changeset/base/285669

Log:
  Since the IETF has redefined the meaning of the tos field to accommodate
  a set of differentiated services, set IPTOS_PREC_* macros using
  IPTOS_DSCP_* macro definitions.
  
  While here, add IPTOS_DSCP_VA macro according to RFC 5865.
  
  Differential Revision:	https://reviews.freebsd.org/D3119
  Reviewed by:	gnn

Modified:
  head/sys/netinet/ip.h

Modified: head/sys/netinet/ip.h
==============================================================================
--- head/sys/netinet/ip.h	Sat Jul 18 04:49:36 2015	(r285668)
+++ head/sys/netinet/ip.h	Sat Jul 18 06:48:30 2015	(r285669)
@@ -80,19 +80,19 @@ struct ip {
 #define	IPTOS_MINCOST		0x02
 
 /*
- * Definitions for IP precedence (also in ip_tos) (hopefully unused).
+ * Definitions for IP precedence (also in ip_tos) (deprecated).
  */
-#define	IPTOS_PREC_NETCONTROL		0xe0
-#define	IPTOS_PREC_INTERNETCONTROL	0xc0
-#define	IPTOS_PREC_CRITIC_ECP		0xa0
-#define	IPTOS_PREC_FLASHOVERRIDE	0x80
-#define	IPTOS_PREC_FLASH		0x60
-#define	IPTOS_PREC_IMMEDIATE		0x40
-#define	IPTOS_PREC_PRIORITY		0x20
-#define	IPTOS_PREC_ROUTINE		0x00
+#define	IPTOS_PREC_NETCONTROL		IPTOS_DSCP_CS7
+#define	IPTOS_PREC_INTERNETCONTROL	IPTOS_DSCP_CS6
+#define	IPTOS_PREC_CRITIC_ECP		IPTOS_DSCP_CS5
+#define	IPTOS_PREC_FLASHOVERRIDE	IPTOS_DSCP_CS4
+#define	IPTOS_PREC_FLASH		IPTOS_DSCP_CS3
+#define	IPTOS_PREC_IMMEDIATE		IPTOS_DSCP_CS2
+#define	IPTOS_PREC_PRIORITY		IPTOS_DSCP_CS1
+#define	IPTOS_PREC_ROUTINE		IPTOS_DSCP_CS0
 
 /*
- * Definitions for DiffServ Codepoints as per RFC2474
+ * Definitions for DiffServ Codepoints as per RFC2474 and RFC5865.
  */
 #define	IPTOS_DSCP_CS0		0x00
 #define	IPTOS_DSCP_CS1		0x20
@@ -112,6 +112,7 @@ struct ip {
 #define	IPTOS_DSCP_AF42		0x90
 #define	IPTOS_DSCP_AF43		0x98
 #define	IPTOS_DSCP_CS5		0xa0
+#define	IPTOS_DSCP_VA		0xb0
 #define	IPTOS_DSCP_EF		0xb8
 #define	IPTOS_DSCP_CS6		0xc0
 #define	IPTOS_DSCP_CS7		0xe0