don't generate icmp message without a copy of the original ip

[unix-history] / usr / src / sys / netinet / tcp.h

diff --git a/usr/src/sys/netinet/tcp.h b/usr/src/sys/netinet/tcp.h
index ae22aea..43ec0e6 100644 (file)
--- a/usr/src/sys/netinet/tcp.h
+++ b/usr/src/sys/netinet/tcp.h
@@ -1,5 +1,6 @@
-/* tcp.h 1.18 81/11/24 */
+/* tcp.h 1.23 82/12/28 */

 
 

+typedef        u_long  tcp_seq;

 /*
  * TCP header.
  * Per RFC 793, September, 1981.
 /*
  * TCP header.
  * Per RFC 793, September, 1981.


@@ -7,11 +8,16 @@
 struct tcphdr {
        u_short th_sport;               /* source port */
        u_short th_dport;               /* destination port */
 struct tcphdr {
        u_short th_sport;               /* source port */
        u_short th_dport;               /* destination port */

-       seq_t   th_seq;                 /* sequence number */
-       seq_t   th_ackno;               /* acknowledgement number */
-       u_char
-               th_x2:4,                /* (unused) */
+       tcp_seq th_seq;                 /* sequence number */
+       tcp_seq th_ack;                 /* acknowledgement number */
+#ifdef vax
+       u_char  th_x2:4,                /* (unused) */

                th_off:4;               /* data offset */
                th_off:4;               /* data offset */

+#endif
+#ifdef sun
+       u_char  th_off:4,               /* data offset */
+               th_x2:4;                /* (unused) */
+#endif

        u_char  th_flags;
 #define        TH_FIN  0x01
 #define        TH_SYN  0x02
        u_char  th_flags;
 #define        TH_FIN  0x01
 #define        TH_SYN  0x02


@@ -23,3 +29,7 @@ struct tcphdr {
        u_short th_sum;                 /* checksum */
        u_short th_urp;                 /* urgent pointer */
 };
        u_short th_sum;                 /* checksum */
        u_short th_urp;                 /* urgent pointer */
 };

+
+#define        TCPOPT_EOL      0
+#define        TCPOPT_NOP      1
+#define        TCPOPT_MAXSEG   2