add include/netinet/tcp.h

ss.c needs lastest version of netinet/tcp.h which probably isn't
on most distro's yet.

Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com>

diff --git a/include/netinet/tcp.h b/include/netinet/tcp.h
new file mode 100644 (file)
index 0000000..282b29c
--- /dev/null
+++ b/include/netinet/tcp.h
@@ -0,0 +1,230 @@
+/*
+ * Copyright (c) 1982, 1986, 1993
+ *     The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *     @(#)tcp.h       8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef _NETINET_TCP_H
+#define _NETINET_TCP_H 1
+
+#include <features.h>
+
+/*
+ * User-settable options (used with setsockopt).
+ */
+#define        TCP_NODELAY      1      /* Don't delay send to coalesce packets  */
+#define        TCP_MAXSEG       2      /* Set maximum segment size  */
+#define TCP_CORK        3      /* Control sending of partial frames  */
+#define TCP_KEEPIDLE    4      /* Start keeplives after this period */
+#define TCP_KEEPINTVL   5      /* Interval between keepalives */
+#define TCP_KEEPCNT     6      /* Number of keepalives before death */
+#define TCP_SYNCNT      7      /* Number of SYN retransmits */
+#define TCP_LINGER2     8      /* Life time of orphaned FIN-WAIT-2 state */
+#define TCP_DEFER_ACCEPT 9     /* Wake up listener only when data arrive */
+#define TCP_WINDOW_CLAMP 10    /* Bound advertised window */
+#define TCP_INFO        11     /* Information about this connection. */
+#define        TCP_QUICKACK     12     /* Bock/reenable quick ACKs.  */
+#define TCP_CONGESTION  13     /* Congestion control algorithm.  */
+
+#ifdef __USE_MISC
+# include <sys/types.h>
+
+# ifdef __FAVOR_BSD
+typedef        u_int32_t tcp_seq;
+/*
+ * TCP header.
+ * Per RFC 793, September, 1981.
+ */
+struct tcphdr
+  {
+    u_int16_t th_sport;                /* source port */
+    u_int16_t th_dport;                /* destination port */
+    tcp_seq th_seq;            /* sequence number */
+    tcp_seq th_ack;            /* acknowledgement number */
+#  if __BYTE_ORDER == __LITTLE_ENDIAN
+    u_int8_t th_x2:4;          /* (unused) */
+    u_int8_t th_off:4;         /* data offset */
+#  endif
+#  if __BYTE_ORDER == __BIG_ENDIAN
+    u_int8_t th_off:4;         /* data offset */
+    u_int8_t th_x2:4;          /* (unused) */
+#  endif
+    u_int8_t th_flags;
+#  define TH_FIN       0x01
+#  define TH_SYN       0x02
+#  define TH_RST       0x04
+#  define TH_PUSH      0x08
+#  define TH_ACK       0x10
+#  define TH_URG       0x20
+    u_int16_t th_win;          /* window */
+    u_int16_t th_sum;          /* checksum */
+    u_int16_t th_urp;          /* urgent pointer */
+};
+
+# else /* !__FAVOR_BSD */
+struct tcphdr
+  {
+    u_int16_t source;
+    u_int16_t dest;
+    u_int32_t seq;
+    u_int32_t ack_seq;
+#  if __BYTE_ORDER == __LITTLE_ENDIAN
+    u_int16_t res1:4;
+    u_int16_t doff:4;
+    u_int16_t fin:1;
+    u_int16_t syn:1;
+    u_int16_t rst:1;
+    u_int16_t psh:1;
+    u_int16_t ack:1;
+    u_int16_t urg:1;
+    u_int16_t res2:2;
+#  elif __BYTE_ORDER == __BIG_ENDIAN
+    u_int16_t doff:4;
+    u_int16_t res1:4;
+    u_int16_t res2:2;
+    u_int16_t urg:1;
+    u_int16_t ack:1;
+    u_int16_t psh:1;
+    u_int16_t rst:1;
+    u_int16_t syn:1;
+    u_int16_t fin:1;
+#  else
+#   error "Adjust your <bits/endian.h> defines"
+#  endif
+    u_int16_t window;
+    u_int16_t check;
+    u_int16_t urg_ptr;
+};
+# endif /* __FAVOR_BSD */
+
+enum
+{
+  TCP_ESTABLISHED = 1,
+  TCP_SYN_SENT,
+  TCP_SYN_RECV,
+  TCP_FIN_WAIT1,
+  TCP_FIN_WAIT2,
+  TCP_TIME_WAIT,
+  TCP_CLOSE,
+  TCP_CLOSE_WAIT,
+  TCP_LAST_ACK,
+  TCP_LISTEN,
+  TCP_CLOSING   /* now a valid state */
+};
+
+# define TCPOPT_EOL            0
+# define TCPOPT_NOP            1
+# define TCPOPT_MAXSEG         2
+# define TCPOLEN_MAXSEG                4
+# define TCPOPT_WINDOW         3
+# define TCPOLEN_WINDOW                3
+# define TCPOPT_SACK_PERMITTED 4               /* Experimental */
+# define TCPOLEN_SACK_PERMITTED        2
+# define TCPOPT_SACK           5               /* Experimental */
+# define TCPOPT_TIMESTAMP      8
+# define TCPOLEN_TIMESTAMP     10
+# define TCPOLEN_TSTAMP_APPA   (TCPOLEN_TIMESTAMP+2) /* appendix A */
+
+# define TCPOPT_TSTAMP_HDR     \
+    (TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP)
+
+/*
+ * Default maximum segment size for TCP.
+ * With an IP MSS of 576, this is 536,
+ * but 512 is probably more convenient.
+ * This should be defined as MIN(512, IP_MSS - sizeof (struct tcpiphdr)).
+ */
+# define TCP_MSS       512
+
+# define TCP_MAXWIN    65535   /* largest value for (unscaled) window */
+
+# define TCP_MAX_WINSHIFT      14      /* maximum window shift */
+
+# define SOL_TCP               6       /* TCP level */
+
+
+# define TCPI_OPT_TIMESTAMPS   1
+# define TCPI_OPT_SACK         2
+# define TCPI_OPT_WSCALE       4
+# define TCPI_OPT_ECN          8
+
+/* Values for tcpi_state.  */
+enum tcp_ca_state
+{
+  TCP_CA_Open = 0,
+  TCP_CA_Disorder = 1,
+  TCP_CA_CWR = 2,
+  TCP_CA_Recovery = 3,
+  TCP_CA_Loss = 4
+};
+
+struct tcp_info
+{
+  u_int8_t     tcpi_state;
+  u_int8_t     tcpi_ca_state;
+  u_int8_t     tcpi_retransmits;
+  u_int8_t     tcpi_probes;
+  u_int8_t     tcpi_backoff;
+  u_int8_t     tcpi_options;
+  u_int8_t     tcpi_snd_wscale : 4, tcpi_rcv_wscale : 4;
+
+  u_int32_t    tcpi_rto;
+  u_int32_t    tcpi_ato;
+  u_int32_t    tcpi_snd_mss;
+  u_int32_t    tcpi_rcv_mss;
+
+  u_int32_t    tcpi_unacked;
+  u_int32_t    tcpi_sacked;
+  u_int32_t    tcpi_lost;
+  u_int32_t    tcpi_retrans;
+  u_int32_t    tcpi_fackets;
+
+  /* Times. */
+  u_int32_t    tcpi_last_data_sent;
+  u_int32_t    tcpi_last_ack_sent;     /* Not remembered, sorry.  */
+  u_int32_t    tcpi_last_data_recv;
+  u_int32_t    tcpi_last_ack_recv;
+
+  /* Metrics. */
+  u_int32_t    tcpi_pmtu;
+  u_int32_t    tcpi_rcv_ssthresh;
+  u_int32_t    tcpi_rtt;
+  u_int32_t    tcpi_rttvar;
+  u_int32_t    tcpi_snd_ssthresh;
+  u_int32_t    tcpi_snd_cwnd;
+  u_int32_t    tcpi_advmss;
+  u_int32_t    tcpi_reordering;
+  u_int32_t    tcpi_rcv_rtt;
+  u_int32_t    tcpi_rcv_space;
+  u_int32_t    tcpi_total_retrans;
+
+};
+
+#endif /* Misc.  */
+
+#endif /* netinet/tcp.h */