X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Ftcp%2Ftcp_packet.h;h=18b70ebb1ad8557ed9a02a962720ebf619568048;hb=c5df8c71c;hp=866c5fd60460201defcba2b5f0e63dc8def3befc;hpb=68b0fb0c620c7451ef1a6380c43c39de6614db51;p=vpp.git

diff --git a/src/vnet/tcp/tcp_packet.h b/src/vnet/tcp/tcp_packet.h
index 866c5fd6046..18b70ebb1ad 100644
--- a/src/vnet/tcp/tcp_packet.h
+++ b/src/vnet/tcp/tcp_packet.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Copyright (c) 2016-2019 Cisco and/or its affiliates.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
@@ -137,19 +137,18 @@ enum
 typedef struct _sack_block
 {
   u32 start;		/**< Start sequence number */
-  u32 end;		/**< End sequence number */
+  u32 end;		/**< End sequence number (first outside) */
 } sack_block_t;
 
 typedef struct
 {
   u8 flags;		/** Option flags, see above */
 
-  /* Received options */
-  u16 mss;		/**< Maximum segment size advertised by peer */
-  u8 wscale;		/**< Window scale advertised by peer */
-  u32 tsval;		/**< Peer's timestamp value */
+  u16 mss;		/**< Maximum segment size advertised */
+  u8 wscale;		/**< Window scale advertised */
+  u32 tsval;		/**< Timestamp value */
   u32 tsecr;		/**< Echoed/reflected time stamp */
-  sack_block_t *sacks;	/**< SACK blocks received */
+  sack_block_t *sacks;	/**< SACK blocks */
   u8 n_sack_blocks;	/**< Number of SACKs blocks */
 } tcp_options_t;
 
@@ -169,6 +168,7 @@ typedef struct
 #define TCP_OPTION_LEN_TIMESTAMP        10
 #define TCP_OPTION_LEN_SACK_BLOCK        8
 
+#define TCP_HDR_LEN_MAX			60
 #define TCP_WND_MAX                     65535U
 #define TCP_MAX_WND_SCALE               14	/* See RFC 1323 */
 #define TCP_OPTS_ALIGN                  4