From 39e6e65a2c5a3312f365d59f23c469641e049c82 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Wed, 19 Aug 1998 21:32:28 +0000
Subject: Base files

---
 cpukit/libnetworking/netinet/tcp_debug.c | 170 +++++++++++++++++++++++++++++++
 1 file changed, 170 insertions(+)
 create mode 100644 cpukit/libnetworking/netinet/tcp_debug.c

(limited to 'cpukit/libnetworking/netinet/tcp_debug.c')

diff --git a/cpukit/libnetworking/netinet/tcp_debug.c b/cpukit/libnetworking/netinet/tcp_debug.c
new file mode 100644
index 0000000000..b90ff79ac8
--- /dev/null
+++ b/cpukit/libnetworking/netinet/tcp_debug.c
@@ -0,0 +1,170 @@
+/*
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 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_debug.c	8.1 (Berkeley) 6/10/93
+ * $Id$
+ */
+
+#include "opt_tcpdebug.h"
+
+#ifdef TCPDEBUG
+/* load symbolic names */
+#define PRUREQUESTS
+#define TCPSTATES
+#define	TCPTIMERS
+#define	TANAMES
+#endif
+
+#include <sys/param.h>
+#include <sys/queue.h>
+#include <sys/systm.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+#include <sys/protosw.h>
+#include <sys/errno.h>
+
+#include <net/route.h>
+#include <net/if.h>
+
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/in_pcb.h>
+#include <netinet/ip_var.h>
+#include <netinet/tcp.h>
+#include <netinet/tcp_fsm.h>
+#include <netinet/tcp_seq.h>
+#include <netinet/tcp_timer.h>
+#include <netinet/tcp_var.h>
+#include <netinet/tcpip.h>
+#include <netinet/tcp_debug.h>
+
+#ifdef TCPDEBUG
+static int	tcpconsdebug = 0;
+#endif
+
+static struct tcp_debug tcp_debug[TCP_NDEBUG];
+static int	tcp_debx;
+
+/*
+ * Tcp debug routines
+ */
+void
+tcp_trace(act, ostate, tp, ti, req)
+	short act, ostate;
+	struct tcpcb *tp;
+	struct tcpiphdr *ti;
+	int req;
+{
+	tcp_seq seq, ack;
+	int len, flags;
+	struct tcp_debug *td = &tcp_debug[tcp_debx++];
+
+	if (tcp_debx == TCP_NDEBUG)
+		tcp_debx = 0;
+	td->td_time = iptime();
+	td->td_act = act;
+	td->td_ostate = ostate;
+	td->td_tcb = (caddr_t)tp;
+	if (tp)
+		td->td_cb = *tp;
+	else
+		bzero((caddr_t)&td->td_cb, sizeof (*tp));
+	if (ti)
+		td->td_ti = *ti;
+	else
+		bzero((caddr_t)&td->td_ti, sizeof (*ti));
+	td->td_req = req;
+#ifdef TCPDEBUG
+	if (tcpconsdebug == 0)
+		return;
+	if (tp)
+		printf("%p %s:", tp, tcpstates[ostate]);
+	else
+		printf("???????? ");
+	printf("%s ", tanames[act]);
+	switch (act) {
+
+	case TA_INPUT:
+	case TA_OUTPUT:
+	case TA_DROP:
+		if (ti == 0)
+			break;
+		seq = ti->ti_seq;
+		ack = ti->ti_ack;
+		len = ti->ti_len;
+		if (act == TA_OUTPUT) {
+			seq = ntohl(seq);
+			ack = ntohl(ack);
+			len = ntohs((u_short)len);
+		}
+		if (act == TA_OUTPUT)
+			len -= sizeof (struct tcphdr);
+		if (len)
+			printf("[%x..%x)", seq, seq+len);
+		else
+			printf("%x", seq);
+		printf("@%x, urp=%x", ack, ti->ti_urp);
+		flags = ti->ti_flags;
+		if (flags) {
+			char *cp = "<";
+#define pf(f) {					\
+	if (ti->ti_flags & TH_##f) {		\
+		printf("%s%s", cp, #f);		\
+		cp = ",";			\
+	}					\
+}
+			pf(SYN); pf(ACK); pf(FIN); pf(RST); pf(PUSH); pf(URG);
+			printf(">");
+		}
+		break;
+
+	case TA_USER:
+		printf("%s", prurequests[req&0xff]);
+		if ((req & 0xff) == PRU_SLOWTIMO)
+			printf("<%s>", tcptimers[req>>8]);
+		break;
+	}
+	if (tp)
+		printf(" -> %s", tcpstates[tp->t_state]);
+	/* print out internal state of tp !?! */
+	printf("\n");
+	if (tp == 0)
+		return;
+	printf("\trcv_(nxt,wnd,up) (%x,%x,%x) snd_(una,nxt,max) (%x,%x,%x)\n",
+	    tp->rcv_nxt, tp->rcv_wnd, tp->rcv_up, tp->snd_una, tp->snd_nxt,
+	    tp->snd_max);
+	printf("\tsnd_(wl1,wl2,wnd) (%x,%x,%x)\n",
+	    tp->snd_wl1, tp->snd_wl2, tp->snd_wnd);
+#endif /* TCPDEBUG */
+}
-- 
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