net-test: packetdrill: support socket options TCP_FASTOPEN_KEY + NO_COOKIE

These two sockets were missing:

  - TCP_FASTOPEN_KEY
  - TCP_FASTOPEN_NO_COOKIE

We just need to add the new symbols to support them.

They are being added to MPTCP in the kernel and validated with
Packetdrill.

This commit was originally for the work-in-progress packetdrill fork
implementation supporting MPTCP but these options can be used for
any "plain" TCP connections.

Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>

Author: matttbe

gtests/net/packetdrill/symbols_linux.c

@@ -187,6 +187,8 @@ struct int_symbol platform_symbols_table[] = {
 	{ TCP_USER_TIMEOUT,                 "TCP_USER_TIMEOUT"                },
 	{ TCP_FASTOPEN,                     "TCP_FASTOPEN"                    },
 	{ TCP_FASTOPEN_CONNECT,             "TCP_FASTOPEN_CONNECT"            },
+	{ TCP_FASTOPEN_KEY,                 "TCP_FASTOPEN_KEY"                },
+	{ TCP_FASTOPEN_NO_COOKIE,           "TCP_FASTOPEN_NO_COOKIE"          },
 	{ TCP_TIMESTAMP,                    "TCP_TIMESTAMP"                   },
 	{ TCP_NOTSENT_LOWAT,                "TCP_NOTSENT_LOWAT"               },
 	{ TCP_INQ,			    "TCP_INQ"			      },

gtests/net/packetdrill/tcp.h

@@ -61,6 +61,8 @@
 #define TCP_SAVED_SYN            28  /* Get SYN headers recorded for connection */
 #define TCP_REPAIR_WINDOW        29  /* Get/set window parameters */
 #define TCP_FASTOPEN_CONNECT     30  /* Attempt FastOpen with connect */
+#define TCP_FASTOPEN_KEY         33  /* Set the key for Fast Open (cookie) */
+#define TCP_FASTOPEN_NO_COOKIE   34  /* Enable TFO without a TFO cookie */
 
 #ifndef TCP_INQ
 #define TCP_INQ			 36