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[] =
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((const void *, const void *));
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)
169 errx(1, "can't do core files yet");
170 (void)klseek(memf, (off_t)nl[N_TCP_DEBX].n_value, L_SET);
171 if (read(memf, (char *)&tcp_debx, sizeof(tcp_debx)) !=
174 (void)klseek(memf, (off_t)nl[N_TCP_DEBUG].n_value, L_SET);
175 if (read(memf, (char *)tcp_debug, sizeof(tcp_debug)) !=
179 * If no control blocks have been specified, figure
180 * out how many distinct one we have and summarize
181 * them in tcp_pcbs for sorting the trace records
185 for (i = 0; i < TCP_NDEBUG; i++) {
186 register struct tcp_debug *td = &tcp_debug[i];
191 for (j = 0; j < npcbs; j++)
192 if (tcp_pcbs[j] == td->td_tcb)
195 tcp_pcbs[npcbs++] = td->td_tcb;
200 qsort(tcp_pcbs, npcbs, sizeof(caddr_t), numeric);
203 printf("%x", (int)tcp_pcbs[i]);
210 else for (i = 0; i < npcbs; i++) {
211 printf("\n%x:\n", (int)tcp_pcbs[i]);
212 dotrace(tcp_pcbs[i]);
220 (void)fprintf(stderr,
221 "usage: trpt [-afjst] [-p hex-address] [system [core]]\n");
227 register caddr_t tcpcb;
229 register struct tcp_debug *td;
231 int prev_debx = tcp_debx, family;
233 again: if (--tcp_debx < 0)
234 tcp_debx = TCP_NDEBUG - 1;
235 for (i = prev_debx % TCP_NDEBUG; i < TCP_NDEBUG; i++) {
237 if (tcpcb && td->td_tcb != tcpcb)
239 ntime = ntohl(td->td_time);
241 family = td->td_family;
247 tcp_trace(td->td_act, td->td_ostate,
248 (struct tcpcb *)td->td_tcb,
249 &td->td_cb, td->td_family, &td->td_ti.ti_i,
250 &td->td_ti.ti_t, td->td_req);
254 tcp_trace(td->td_act, td->td_ostate,
255 (struct tcpcb *)td->td_tcb,
256 &td->td_cb, td->td_family, &td->td_ti6.ip6,
257 &td->td_ti6.th, td->td_req);
264 for (i = 0; i <= tcp_debx % TCP_NDEBUG; i++) {
266 if (tcpcb && td->td_tcb != tcpcb)
268 ntime = ntohl(td->td_time);
270 family = td->td_family;
276 tcp_trace(td->td_act, td->td_ostate,
277 (struct tcpcb *)td->td_tcb,
278 &td->td_cb, td->td_family, &td->td_ti.ti_i,
279 &td->td_ti.ti_t, td->td_req);
283 tcp_trace(td->td_act, td->td_ostate,
284 (struct tcpcb *)td->td_tcb,
285 &td->td_cb, td->td_family, &td->td_ti6.ip6,
286 &td->td_ti6.th, td->td_req);
292 prev_debx = tcp_debx + 1;
293 if (prev_debx >= TCP_NDEBUG)
297 (void)klseek(memf, (off_t)nl[N_TCP_DEBX].n_value, L_SET);
298 if (read(memf, (char *)&tcp_debx, sizeof(tcp_debx)) !=
301 } while (tcp_debx == prev_debx);
302 (void)klseek(memf, (off_t)nl[N_TCP_DEBUG].n_value, L_SET);
303 if (read(memf, (char *)tcp_debug, sizeof(tcp_debug)) !=
315 tcp_trace(act, ostate, atp, tp, family, ip, th, req)
317 struct tcpcb *atp, *tp;
324 int flags, len, win, timer;
327 int isipv6, nopkt = 1;
329 char ntop_buf[INET6_ADDRSTRLEN];
337 ip4 = (struct ip *)ip;
342 ip6 = (struct ip6_hdr *)ip;
348 ip4 = (struct ip *)ip;
350 printf("%03ld %s:%s ",(ntime/10) % 1000, tcpstates[ostate],
361 printf("(src=%s,%u, ",
365 ? inet_ntop(AF_INET6, &ip6->ip6_src, ntop_buf,
368 inet_ntoa(ip4->ip_src),
369 ntohs(th->th_sport));
373 ? inet_ntop(AF_INET6, &ip6->ip6_dst, ntop_buf,
376 inet_ntoa(ip4->ip_dst),
377 ntohs(th->th_dport));
384 isipv6 ? ip6->ip6_plen :
388 if (act == TA_OUTPUT) {
394 if (act == TA_OUTPUT)
395 len -= sizeof(struct tcphdr);
397 printf("[%lx..%lx)", seq, seq + len);
402 printf("(win=%x)", win);
403 flags = th->th_flags;
405 register char *cp = "<";
406 #define pf(flag, string) { \
407 if (th->th_flags&flag) { \
408 (void)printf("%s%s", cp, string); \
424 printf("%s", prurequests[req]);
425 if (req == PRU_SLOWTIMO || req == PRU_FASTTIMO)
426 printf("<%s>", tcptimers[timer]);
429 printf(" -> %s", tcpstates[tp->t_state]);
430 /* print out internal state of tp !?! */
433 printf("\trcv_nxt %lx rcv_wnd %x snd_una %lx snd_nxt %lx snd_max %lx\n",
434 tp->rcv_nxt, tp->rcv_wnd, tp->snd_una, tp->snd_nxt,
436 printf("\tsnd_wl1 %lx snd_wl2 %lx snd_wnd %x\n", tp->snd_wl1,
437 tp->snd_wl2, tp->snd_wnd);
439 /* print out timers? */
443 * kernel now uses callouts, not integer time values.
446 register char *cp = "\t";
449 for (i = 0; i < TCPT_NTIMERS; i++) {
450 if (tp->t_timer[i] == 0)
452 printf("%s%s=%d", cp, tcptimers[i], tp->t_timer[i]);
454 printf(" (t_rxtshft=%d)", tp->t_rxtshift);
467 const caddr_t *c1 = v1, *c2 = v2;
472 klseek(fd, base, off)
476 (void)lseek(fd, base, off);