2 * Copyright (c) 1983, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 static const char copyright[] =
36 "@(#) Copyright (c) 1983, 1988, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
42 static char sccsid[] = "@(#)trpt.c 8.1 (Berkeley) 6/6/93";
44 static const char rcsid[] =
45 "$FreeBSD: src/usr.sbin/trpt/trpt.c,v 1.12 2000/01/29 11:49:07 shin Exp $";
48 #include <sys/param.h>
49 #include <sys/queue.h>
50 #include <sys/socket.h>
51 #include <sys/socketvar.h>
53 #include <sys/protosw.h>
57 #include <net/route.h>
60 #include <netinet/in.h>
61 #include <netinet/in_systm.h>
62 #include <netinet/ip.h>
64 #include <netinet/ip6.h>
66 #include <netinet/ip_var.h>
67 #include <netinet/tcp.h>
69 #include <netinet/tcp_fsm.h>
70 #include <netinet/tcp_seq.h>
72 #include <netinet/tcp_timer.h>
73 #include <netinet/tcp_var.h>
74 #include <netinet/tcpip.h>
76 #include <netinet/tcp_debug.h>
78 #include <arpa/inet.h>
95 static caddr_t tcp_pcbs[TCP_NDEBUG];
97 static int aflag, kflag, memf, follow, sflag, tflag;
99 void dotrace __P((caddr_t));
100 void klseek __P((int, off_t, int));
101 int numeric __P((caddr_t *, caddr_t *));
102 void tcp_trace __P((short, short, struct tcpcb *, struct tcpcb *,
103 int, void *, struct tcphdr *, int));
104 static void usage __P((void));
111 int ch, i, jflag, npcbs;
115 while ((ch = getopt(argc, argv, "afjp:st")) != -1)
128 if (npcbs >= TCP_NDEBUG)
129 errx(1, "too many pcb's specified");
130 (void)sscanf(optarg, "%x", (int *)&tcp_pcbs[npcbs++]);
155 * Discard setgid privileges if not the running kernel so that
156 * bad guys can't print interesting stuff from kernel memory.
161 system = (char *)getbootfile();
163 if (nlist(system, nl) < 0 || !nl[0].n_value)
164 errx(1, "%s: no namelist", system);
165 if ((memf = open(core, O_RDONLY)) < 0)
168 errx(1, "can't do core files yet");
169 (void)klseek(memf, (off_t)nl[N_TCP_DEBX].n_value, L_SET);
170 if (read(memf, (char *)&tcp_debx, sizeof(tcp_debx)) !=
173 (void)klseek(memf, (off_t)nl[N_TCP_DEBUG].n_value, L_SET);
174 if (read(memf, (char *)tcp_debug, sizeof(tcp_debug)) !=
178 * If no control blocks have been specified, figure
179 * out how many distinct one we have and summarize
180 * them in tcp_pcbs for sorting the trace records
184 for (i = 0; i < TCP_NDEBUG; i++) {
185 register struct tcp_debug *td = &tcp_debug[i];
190 for (j = 0; j < npcbs; j++)
191 if (tcp_pcbs[j] == td->td_tcb)
194 tcp_pcbs[npcbs++] = td->td_tcb;
199 qsort(tcp_pcbs, npcbs, sizeof(caddr_t), numeric);
202 printf("%x", (int)tcp_pcbs[i]);
209 else for (i = 0; i < npcbs; i++) {
210 printf("\n%x:\n", (int)tcp_pcbs[i]);
211 dotrace(tcp_pcbs[i]);
219 (void)fprintf(stderr,
220 "usage: trpt [-afjst] [-p hex-address] [system [core]]\n");
226 register caddr_t tcpcb;
228 register struct tcp_debug *td;
230 int prev_debx = tcp_debx, family;
232 again: if (--tcp_debx < 0)
233 tcp_debx = TCP_NDEBUG - 1;
234 for (i = prev_debx % TCP_NDEBUG; i < TCP_NDEBUG; i++) {
236 if (tcpcb && td->td_tcb != tcpcb)
238 ntime = ntohl(td->td_time);
240 family = td->td_family;
246 tcp_trace(td->td_act, td->td_ostate,
247 (struct tcpcb *)td->td_tcb,
248 &td->td_cb, td->td_family, &td->td_ti.ti_i,
249 &td->td_ti.ti_t, td->td_req);
253 tcp_trace(td->td_act, td->td_ostate,
254 (struct tcpcb *)td->td_tcb,
255 &td->td_cb, td->td_family, &td->td_ti6.ip6,
256 &td->td_ti6.th, td->td_req);
263 for (i = 0; i <= tcp_debx % TCP_NDEBUG; i++) {
265 if (tcpcb && td->td_tcb != tcpcb)
267 ntime = ntohl(td->td_time);
269 family = td->td_family;
275 tcp_trace(td->td_act, td->td_ostate,
276 (struct tcpcb *)td->td_tcb,
277 &td->td_cb, td->td_family, &td->td_ti.ti_i,
278 &td->td_ti.ti_t, td->td_req);
282 tcp_trace(td->td_act, td->td_ostate,
283 (struct tcpcb *)td->td_tcb,
284 &td->td_cb, td->td_family, &td->td_ti6.ip6,
285 &td->td_ti6.th, td->td_req);
291 prev_debx = tcp_debx + 1;
292 if (prev_debx >= TCP_NDEBUG)
296 (void)klseek(memf, (off_t)nl[N_TCP_DEBX].n_value, L_SET);
297 if (read(memf, (char *)&tcp_debx, sizeof(tcp_debx)) !=
300 } while (tcp_debx == prev_debx);
301 (void)klseek(memf, (off_t)nl[N_TCP_DEBUG].n_value, L_SET);
302 if (read(memf, (char *)tcp_debug, sizeof(tcp_debug)) !=
314 tcp_trace(act, ostate, atp, tp, family, ip, th, req)
316 struct tcpcb *atp, *tp;
323 int flags, len, win, timer;
326 int isipv6, nopkt = 1;
328 char ntop_buf[INET6_ADDRSTRLEN];
336 ip4 = (struct ip *)ip;
341 ip6 = (struct ip6_hdr *)ip;
347 ip4 = (struct ip *)ip;
349 printf("%03ld %s:%s ",(ntime/10) % 1000, tcpstates[ostate],
360 printf("(src=%s,%u, ",
364 ? inet_ntop(AF_INET6, &ip6->ip6_src, ntop_buf,
367 inet_ntoa(ip4->ip_src),
368 ntohs(th->th_sport));
372 ? inet_ntop(AF_INET6, &ip6->ip6_dst, ntop_buf,
375 inet_ntoa(ip4->ip_dst),
376 ntohs(th->th_dport));
383 isipv6 ? ip6->ip6_plen :
387 if (act == TA_OUTPUT) {
393 if (act == TA_OUTPUT)
394 len -= sizeof(struct tcphdr);
396 printf("[%lx..%lx)", seq, seq + len);
401 printf("(win=%x)", win);
402 flags = th->th_flags;
404 register char *cp = "<";
405 #define pf(flag, string) { \
406 if (th->th_flags&flag) { \
407 (void)printf("%s%s", cp, string); \
423 printf("%s", prurequests[req]);
424 if (req == PRU_SLOWTIMO || req == PRU_FASTTIMO)
425 printf("<%s>", tcptimers[timer]);
428 printf(" -> %s", tcpstates[tp->t_state]);
429 /* print out internal state of tp !?! */
432 printf("\trcv_nxt %lx rcv_wnd %x snd_una %lx snd_nxt %lx snd_max %lx\n",
433 tp->rcv_nxt, tp->rcv_wnd, tp->snd_una, tp->snd_nxt,
435 printf("\tsnd_wl1 %lx snd_wl2 %lx snd_wnd %x\n", tp->snd_wl1,
436 tp->snd_wl2, tp->snd_wnd);
438 /* print out timers? */
442 * kernel now uses callouts, not integer time values.
445 register char *cp = "\t";
448 for (i = 0; i < TCPT_NTIMERS; i++) {
449 if (tp->t_timer[i] == 0)
451 printf("%s%s=%d", cp, tcptimers[i], tp->t_timer[i]);
453 printf(" (t_rxtshft=%d)", tp->t_rxtshift);
470 klseek(fd, base, off)
474 (void)lseek(fd, base, off);