initial import of NetBSD tree

1 files changed, 411 insertions, 0 deletions

diff --git a/usr.sbin/trpt/trpt.c b/usr.sbin/trpt/trpt.c
new file mode 100644
index 00000000000..5e26a340fe1
--- /dev/null
+++ b/usr.sbin/trpt/trpt.c
@@ -0,0 +1,411 @@
+/*
+ * Copyright (c) 1983, 1988 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.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1983, 1988 Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+/*static char sccsid[] = "from: @(#)trpt.c	5.14 (Berkeley) 7/1/91";*/
+static char rcsid[] = "$Id: trpt.c,v 1.1 1995/10/18 08:48:29 deraadt Exp $";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/queue.h>
+#if BSD >= 199103
+#define NEWVM
+#endif
+#ifndef NEWVM
+#include <machine/pte.h>
+#include <sys/vmmac.h>
+#endif
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+#define PRUREQUESTS
+#include <sys/protosw.h>
+#include <sys/file.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>
+#define TCPSTATES
+#include <netinet/tcp_fsm.h>
+#include <netinet/tcp_seq.h>
+#define	TCPTIMERS
+#include <netinet/tcp_timer.h>
+#include <netinet/tcp_var.h>
+#include <netinet/tcpip.h>
+#define	TANAMES
+#include <netinet/tcp_debug.h>
+
+#include <arpa/inet.h>
+
+#include <stdio.h>
+#include <errno.h>
+#include <nlist.h>
+#include <paths.h>
+
+struct nlist nl[] = {
+#define	N_TCP_DEBUG	0
+	{ "_tcp_debug" },
+#define	N_TCP_DEBX	1
+	{ "_tcp_debx" },
+#ifndef NEWVM
+#define	N_SYSMAP	2
+	{ "_Sysmap" },
+#define	N_SYSSIZE	3
+	{ "_Syssize" },
+#endif
+	{ "" },
+};
+
+#ifndef NEWVM
+static struct pte *Sysmap;
+#endif
+static caddr_t tcp_pcbs[TCP_NDEBUG];
+static n_time ntime;
+static int aflag, kflag, memf, follow, sflag, tflag;
+
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	extern char *optarg;
+	extern int optind;
+	int ch, i, jflag, npcbs, numeric();
+	char *system, *core, *malloc();
+	off_t lseek();
+
+	jflag = npcbs = 0;
+	while ((ch = getopt(argc, argv, "afjp:st")) != EOF)
+		switch (ch) {
+		case 'a':
+			++aflag;
+			break;
+		case 'f':
+			++follow;
+			setlinebuf(stdout);
+			break;
+		case 'j':
+			++jflag;
+			break;
+		case 'p':
+			if (npcbs >= TCP_NDEBUG) {
+				fputs("trpt: too many pcb's specified\n",
+				    stderr);
+				exit(1);
+			}
+			(void)sscanf(optarg, "%x", (int *)&tcp_pcbs[npcbs++]);
+			break;
+		case 's':
+			++sflag;
+			break;
+		case 't':
+			++tflag;
+			break;
+		case '?':
+		default:
+			(void)fprintf(stderr,
+"usage: trpt [-afjst] [-p hex-address] [system [core]]\n");
+			exit(1);
+		}
+	argc -= optind;
+	argv += optind;
+
+	core = _PATH_KMEM;
+	if (argc > 0) {
+		system = *argv;
+		argc--, argv++;
+		if (argc > 0) {
+			core = *argv;
+			argc--, argv++;
+			++kflag;
+		}
+	}
+	else
+		system = _PATH_UNIX;
+
+	if (nlist(system, nl) < 0 || !nl[0].n_value) {
+		fprintf(stderr, "trpt: %s: no namelist\n", system);
+		exit(1);
+	}
+	if ((memf = open(core, O_RDONLY)) < 0) {
+		perror(core);
+		exit(2);
+	}
+	if (kflag) {
+#ifdef NEWVM
+		fputs("trpt: can't do core files yet\n", stderr);
+		exit(1);
+#else
+		off_t off;
+
+		Sysmap = (struct pte *)
+		   malloc((u_int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
+		if (!Sysmap) {
+			fputs("trpt: can't get memory for Sysmap.\n", stderr);
+			exit(1);
+		}
+		off = nl[N_SYSMAP].n_value & ~KERNBASE;
+		(void)lseek(memf, off, L_SET);
+		(void)read(memf, (char *)Sysmap,
+		    (int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
+#endif
+	}
+	(void)klseek(memf, (off_t)nl[N_TCP_DEBX].n_value, L_SET);
+	if (read(memf, (char *)&tcp_debx, sizeof(tcp_debx)) !=
+	    sizeof(tcp_debx)) {
+		perror("trpt: tcp_debx");
+		exit(3);
+	}
+	(void)klseek(memf, (off_t)nl[N_TCP_DEBUG].n_value, L_SET);
+	if (read(memf, (char *)tcp_debug, sizeof(tcp_debug)) !=
+	    sizeof(tcp_debug)) {
+		perror("trpt: tcp_debug");
+		exit(3);
+	}
+	/*
+	 * If no control blocks have been specified, figure
+	 * out how many distinct one we have and summarize
+	 * them in tcp_pcbs for sorting the trace records
+	 * below.
+	 */
+	if (!npcbs) {
+		for (i = 0; i < TCP_NDEBUG; i++) {
+			register struct tcp_debug *td = &tcp_debug[i];
+			register int j;
+
+			if (td->td_tcb == 0)
+				continue;
+			for (j = 0; j < npcbs; j++)
+				if (tcp_pcbs[j] == td->td_tcb)
+					break;
+			if (j >= npcbs)
+				tcp_pcbs[npcbs++] = td->td_tcb;
+		}
+		if (!npcbs)
+			exit(0);
+	}
+	qsort(tcp_pcbs, npcbs, sizeof(caddr_t), numeric);
+	if (jflag) {
+		for (i = 0;;) {
+			printf("%lx", (long)tcp_pcbs[i]);
+			if (++i == npcbs)
+				break;
+			fputs(", ", stdout);
+		}
+		putchar('\n');
+	}
+	else for (i = 0; i < npcbs; i++) {
+		printf("\n%lx:\n", (long)tcp_pcbs[i]);
+		dotrace(tcp_pcbs[i]);
+	}
+	exit(0);
+}
+
+dotrace(tcpcb)
+	register caddr_t tcpcb;
+{
+	register struct tcp_debug *td;
+	register int i;
+	int prev_debx = tcp_debx;
+
+again:	if (--tcp_debx < 0)
+		tcp_debx = TCP_NDEBUG - 1;
+	for (i = prev_debx % TCP_NDEBUG; i < TCP_NDEBUG; i++) {
+		td = &tcp_debug[i];
+		if (tcpcb && td->td_tcb != tcpcb)
+			continue;
+		ntime = ntohl(td->td_time);
+		tcp_trace(td->td_act, td->td_ostate, td->td_tcb, &td->td_cb,
+		    &td->td_ti, td->td_req);
+		if (i == tcp_debx)
+			goto done;
+	}
+	for (i = 0; i <= tcp_debx % TCP_NDEBUG; i++) {
+		td = &tcp_debug[i];
+		if (tcpcb && td->td_tcb != tcpcb)
+			continue;
+		ntime = ntohl(td->td_time);
+		tcp_trace(td->td_act, td->td_ostate, td->td_tcb, &td->td_cb,
+		    &td->td_ti, td->td_req);
+	}
+done:	if (follow) {
+		prev_debx = tcp_debx + 1;
+		if (prev_debx >= TCP_NDEBUG)
+			prev_debx = 0;
+		do {
+			sleep(1);
+			(void)klseek(memf, (off_t)nl[N_TCP_DEBX].n_value, L_SET);
+			if (read(memf, (char *)&tcp_debx, sizeof(tcp_debx)) !=
+			    sizeof(tcp_debx)) {
+				perror("trpt: tcp_debx");
+				exit(3);
+			}
+		} while (tcp_debx == prev_debx);
+		(void)klseek(memf, (off_t)nl[N_TCP_DEBUG].n_value, L_SET);
+		if (read(memf, (char *)tcp_debug, sizeof(tcp_debug)) !=
+		    sizeof(tcp_debug)) {
+			perror("trpt: tcp_debug");
+			exit(3);
+		}
+		goto again;
+	}
+}
+
+/*
+ * Tcp debug routines
+ */
+/*ARGSUSED*/
+tcp_trace(act, ostate, atp, tp, ti, req)
+	short act, ostate;
+	struct tcpcb *atp, *tp;
+	struct tcpiphdr *ti;
+	int req;
+{
+	tcp_seq seq, ack;
+	int flags, len, win, timer;
+
+	printf("%03ld %s:%s ",(ntime/10) % 1000, tcpstates[ostate],
+	    tanames[act]);
+	switch (act) {
+	case TA_INPUT:
+	case TA_OUTPUT:
+	case TA_DROP:
+		if (aflag) {
+			printf("(src=%s,%u, ",
+			    inet_ntoa(ti->ti_src), ntohs(ti->ti_sport));
+			printf("dst=%s,%u)",
+			    inet_ntoa(ti->ti_dst), ntohs(ti->ti_dport));
+		}
+		seq = ti->ti_seq;
+		ack = ti->ti_ack;
+		len = ti->ti_len;
+		win = ti->ti_win;
+		if (act == TA_OUTPUT) {
+			seq = ntohl(seq);
+			ack = ntohl(ack);
+			len = ntohs(len);
+			win = ntohs(win);
+		}
+		if (act == TA_OUTPUT)
+			len -= sizeof(struct tcphdr);
+		if (len)
+			printf("[%lx..%lx)", seq, seq + len);
+		else
+			printf("%lx", seq);
+		printf("@%lx", ack);
+		if (win)
+			printf("(win=%x)", win);
+		flags = ti->ti_flags;
+		if (flags) {
+			register char *cp = "<";
+#define	pf(flag, string) { \
+	if (ti->ti_flags&flag) { \
+		(void)printf("%s%s", cp, string); \
+		cp = ","; \
+	} \
+}
+			pf(TH_SYN, "SYN");
+			pf(TH_ACK, "ACK");
+			pf(TH_FIN, "FIN");
+			pf(TH_RST, "RST");
+			pf(TH_PUSH, "PUSH");
+			pf(TH_URG, "URG");
+			printf(">");
+		}
+		break;
+	case TA_USER:
+		timer = req >> 8;
+		req &= 0xff;
+		printf("%s", prurequests[req]);
+		if (req == PRU_SLOWTIMO || req == PRU_FASTTIMO)
+			printf("<%s>", tcptimers[timer]);
+		break;
+	}
+	printf(" -> %s", tcpstates[tp->t_state]);
+	/* print out internal state of tp !?! */
+	printf("\n");
+	if (sflag) {
+		printf("\trcv_nxt %lx rcv_wnd %x snd_una %lx snd_nxt %lx snd_max %lx\n",
+		    tp->rcv_nxt, tp->rcv_wnd, tp->snd_una, tp->snd_nxt,
+		    tp->snd_max);
+		printf("\tsnd_wl1 %lx snd_wl2 %lx snd_wnd %x\n", tp->snd_wl1,
+		    tp->snd_wl2, tp->snd_wnd);
+	}
+	/* print out timers? */
+	if (tflag) {
+		register char *cp = "\t";
+		register int i;
+
+		for (i = 0; i < TCPT_NTIMERS; i++) {
+			if (tp->t_timer[i] == 0)
+				continue;
+			printf("%s%s=%d", cp, tcptimers[i], tp->t_timer[i]);
+			if (i == TCPT_REXMT)
+				printf(" (t_rxtshft=%d)", tp->t_rxtshift);
+			cp = ", ";
+		}
+		if (*cp != '\t')
+			putchar('\n');
+	}
+}
+
+numeric(c1, c2)
+	caddr_t *c1, *c2;
+{
+	return(*c1 - *c2);
+}
+
+klseek(fd, base, off)
+	int fd, off;
+	off_t base;
+{
+	off_t lseek();
+
+#ifndef NEWVM
+	if (kflag) {	/* get kernel pte */
+		base &= ~KERNBASE;
+		base = ctob(Sysmap[btop(base)].pg_pfnum) + (base & PGOFSET);
+	}
+#endif
+	(void)lseek(fd, base, off);
+}