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authorEric Andersen <andersen@codepoet.org>2000-07-09 02:16:27 +0000
committerEric Andersen <andersen@codepoet.org>2000-07-09 02:16:27 +0000
commit7513fde29d278751593c6d3130d25c3c773acccb (patch)
tree34e94972b0c3be3a0fceb59730adc960044edbbd /include/netinet/ip_tcp.h
parent42fb99c79e95e7b6c557f3e30b77916411f71084 (diff)
Revert to the old set of includes.
-Erik
Diffstat (limited to 'include/netinet/ip_tcp.h')
-rw-r--r--include/netinet/ip_tcp.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/include/netinet/ip_tcp.h b/include/netinet/ip_tcp.h
new file mode 100644
index 000000000..39111f275
--- /dev/null
+++ b/include/netinet/ip_tcp.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 1982, 1986 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley. The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * @(#)tcp.h 7.5 (Berkeley) 6/29/88
+ */
+
+#ifndef _NETINET_IP_TCP_H
+#define _NETINET_IP_TCP_H
+
+#include <endian.h>
+#include <linux/socket.h>
+#include <sys/types.h>
+
+typedef u_long tcp_seq;
+/*
+ * TCP header.
+ * Per RFC 793, September, 1981.
+ */
+struct tcphdr {
+ u_short th_sport; /* source port */
+ u_short th_dport; /* destination port */
+ tcp_seq th_seq; /* sequence number */
+ tcp_seq th_ack; /* acknowledgement number */
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ u_char th_x2:4, /* (unused) */
+ th_off:4; /* data offset */
+#endif
+#if __BYTE_ORDER == __BIG_ENDIAN
+ u_char th_off:4, /* data offset */
+ th_x2:4; /* (unused) */
+#endif
+ u_char 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_short th_win; /* window */
+ u_short th_sum; /* checksum */
+ u_short th_urp; /* urgent pointer */
+};
+
+#define TCPOPT_EOL 0
+#define TCPOPT_NOP 1
+#define TCPOPT_MAXSEG 2
+
+/*
+ * Default maximum segment size for TCP.
+ * With an IP MSS of 576, this is 536,
+ * but 512 is probably more convenient.
+ */
+#ifdef lint
+#define TCP_MSS 536
+#else
+#define TCP_MSS MIN(512, IP_MSS - sizeof (struct tcpiphdr))
+#endif
+
+#endif /* _NETINET_TCP_H */