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authorrgrimes <rgrimes@FreeBSD.org>1994-05-26 05:23:31 +0000
committerrgrimes <rgrimes@FreeBSD.org>1994-05-26 05:23:31 +0000
commit862fdf11a2ede45dec0da01ed575525d79468981 (patch)
tree7a1c88ccb8006476bd4b4a548a6ad48fbfc33a01 /usr.sbin/trpt
parent8e1a19ddde0df113b0b26b0ea621afd61dbaf91f (diff)
downloadFreeBSD-src-862fdf11a2ede45dec0da01ed575525d79468981.zip
FreeBSD-src-862fdf11a2ede45dec0da01ed575525d79468981.tar.gz
BSD 4.4 Lite usr.sbin Sources
Diffstat (limited to 'usr.sbin/trpt')
-rw-r--r--usr.sbin/trpt/Makefile8
-rw-r--r--usr.sbin/trpt/trpt.8151
-rw-r--r--usr.sbin/trpt/trpt.c414
3 files changed, 573 insertions, 0 deletions
diff --git a/usr.sbin/trpt/Makefile b/usr.sbin/trpt/Makefile
new file mode 100644
index 0000000..9057f65
--- /dev/null
+++ b/usr.sbin/trpt/Makefile
@@ -0,0 +1,8 @@
+# @(#)Makefile 8.1 (Berkeley) 6/6/93
+
+PROG= trpt
+MAN8= trpt.0
+BINGRP= kmem
+BINMODE=2555
+
+.include <bsd.prog.mk>
diff --git a/usr.sbin/trpt/trpt.8 b/usr.sbin/trpt/trpt.8
new file mode 100644
index 0000000..8cc6c2a
--- /dev/null
+++ b/usr.sbin/trpt/trpt.8
@@ -0,0 +1,151 @@
+.\" Copyright (c) 1983, 1991, 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.
+.\"
+.\" @(#)trpt.8 8.2 (Berkeley) 12/11/93
+.\"
+.Dd December 11, 1993
+.Dt TRPT 8
+.Os BSD 4.2
+.Sh NAME
+.Nm trpt
+.Nd transliterate protocol trace
+.Sh SYNOPSIS
+.Nm trpt
+.Op Fl a
+.Op Fl f
+.Op Fl j
+.Op Fl p Ar hex-address
+.Op Fl s
+.Op Fl t
+.Oo
+.Ar system Op Ar core
+.Oc
+.Sh DESCRIPTION
+.Nm Trpt
+interrogates the buffer of
+.Tn TCP
+trace records created
+when a socket is marked for
+.Dq debugging
+(see
+.Xr setsockopt 2 ) ,
+and prints a readable description of these records.
+When no options are supplied,
+.Nm trpt
+prints all the trace records found in the system
+grouped according to
+.Tn TCP
+connection protocol control
+block
+.Pq Tn PCB .
+The following options may be used to
+alter this behavior.
+.Bl -tag -width Ds
+.It Fl a
+In addition to the normal output,
+print the values of the source and destination
+addresses for each packet recorded.
+.It Fl f
+Follow the trace as it occurs, waiting a short time for additional records
+each time the end of the log is reached.
+.It Fl j
+Just give a list of the protocol control block
+addresses for which there are trace records.
+.It Fl p
+Show only trace records associated with the protocol
+control block at the given address
+.Ar hex-address .
+.It Fl s
+In addition to the normal output,
+print a detailed description of the packet
+sequencing information.
+.It Fl t
+in addition to the normal output,
+print the values for all timers at each
+point in the trace.
+.El
+.Pp
+The recommended use of
+.Nm trpt
+is as follows.
+Isolate the problem and enable debugging on the
+socket(s) involved in the connection.
+Find the address of the protocol control blocks
+associated with the sockets using the
+.Fl A
+option to
+.Xr netstat 1 .
+Then run
+.Nm trpt
+with the
+.Fl p
+option, supplying the associated
+protocol control block addresses.
+The
+.Fl f
+option can be used to follow the trace log once the trace is located.
+If there are
+many sockets using the debugging option, the
+.Fl j
+option may be useful in checking to see if
+any trace records are present for the socket in
+question.
+.Pp
+If debugging is being performed on a system or
+core file other than the default, the last two
+arguments may be used to supplant the defaults.
+.Sh FILES
+.Bl -tag -width /dev/kmem -compact
+.It Pa /vmunix
+.It Pa /dev/kmem
+.El
+.Sh SEE ALSO
+.Xr netstat 1 ,
+.Xr setsockopt 2 ,
+.Xr trsp 8
+.Sh DIAGNOSTICS
+.Bl -tag -width Ds
+.It Sy no namelist
+When the system image doesn't
+contain the proper symbols to find the trace buffer;
+others which should be self explanatory.
+.El
+.Sh BUGS
+Should also print the data for each input or output,
+but this is not saved in the race record.
+.Pp
+The output format is inscrutable and should be described
+here.
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 4.2 .
diff --git a/usr.sbin/trpt/trpt.c b/usr.sbin/trpt/trpt.c
new file mode 100644
index 0000000..7452cdd
--- /dev/null
+++ b/usr.sbin/trpt/trpt.c
@@ -0,0 +1,414 @@
+/*
+ * Copyright (c) 1983, 1988, 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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1983, 1988, 1993\n\
+ The Regents of the University of California. All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)trpt.c 8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/param.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;
+ }
+ /*
+ * Discard setgid privileges if not the running kernel so that
+ * bad guys can't print interesting stuff from kernel memory.
+ */
+ setgid(getgid());
+ }
+ 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("%x", (int)tcp_pcbs[i]);
+ if (++i == npcbs)
+ break;
+ fputs(", ", stdout);
+ }
+ putchar('\n');
+ }
+ else for (i = 0; i < npcbs; i++) {
+ printf("\n%x:\n", (int)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);
+}
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