PERFORCE change 162646 for review

[Fang Wang]

http://perforce.freebsd.org/chv.cgi?CH=162646

Change 162646 by fangwang at fangwang_utobsd on 2009/05/24 14:18:43

	Add TCP UTO(user timeout) relative macro defines in tcp.h.

Affected files ...

.. //depot/projects/soc2009/tcputo/src/sys/netinet/tcp.h#2 edit

Differences ...

==== //depot/projects/soc2009/tcputo/src/sys/netinet/tcp.h#2 (text+ko) ====

@@ -96,6 +96,8 @@
 #define    TCPOLEN_TSTAMP_APPA		(TCPOLEN_TIMESTAMP+2) /* appendix A */
 #define	TCPOPT_SIGNATURE	19		/* Keyed MD5: RFC 2385 */
 #define	   TCPOLEN_SIGNATURE		18
+#define TCPOPT_UTO      28
+#define    TCPOLEN_UTO          4
 
 /* Miscellaneous constants */
 #define	MAX_SACK_BLKS	6	/* Max # SACK blocks stored at receiver side */
@@ -150,6 +152,7 @@
 #define TCP_MD5SIG	0x10	/* use MD5 digests (RFC2385) */
 #define	TCP_INFO	0x20	/* retrieve tcp_info structure */
 #define	TCP_CONGESTION	0x40	/* get/set congestion control algorithm */
+#define TCP_UTO     0x80    /* set tcp user timeout */
 
 #define	TCP_CA_NAME_MAX	16	/* max congestion control name length */
 
@@ -158,6 +161,7 @@
 #define	TCPI_OPT_WSCALE		0x04
 #define	TCPI_OPT_ECN		0x08
 #define	TCPI_OPT_TOE		0x10
+#define TCPI_OPT_UTO        0x20
 
 /*
  * The TCP_INFO socket option comes from the Linux 2.6 TCP API, and permits
@@ -217,9 +221,10 @@
 	u_int32_t	tcpi_snd_nxt;		/* Next egress seqno */
 	u_int32_t	tcpi_rcv_nxt;		/* Next ingress seqno */
 	u_int32_t	tcpi_toe_tid;		/* HWTID for TOE endpoints */
-	
+	u_int32_t   tcpi_uto;           /* tcp user timeout value */
+
 	/* Padding to grow without breaking ABI. */
-	u_int32_t	__tcpi_pad[29];		/* Padding. */
+	u_int32_t	__tcpi_pad[28];		/* Padding. */
 };
 #endif