[apple/network_cmds.git] / trpt.tproj / trpt.c

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
 * Reserved.  This file contains Original Code and/or Modifications of
 * Original Code as defined in and that are subject to the Apple Public
 * Source License Version 1.0 (the 'License').  You may not use this file
 * except in compliance with the License.  Please obtain a copy of the
 * License at http://www.apple.com/publicsource and read it before using
 * this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License."
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * 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	tcp_debug tcp_debug[TCP_NDEBUG];
int	tcp_debx;

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.ti_t, 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.ti_t, 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);
}
Commit	Line	Data
b7080c8e A	1	/*
	2	* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
921c0aec A	6	* "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
	7	* Reserved. This file contains Original Code and/or Modifications of
	8	* Original Code as defined in and that are subject to the Apple Public
	9	* Source License Version 1.0 (the 'License'). You may not use this file
	10	* except in compliance with the License. Please obtain a copy of the
	11	* License at http://www.apple.com/publicsource and read it before using
	12	* this file.
b7080c8e A	13	*
	14	* The Original Code and all software distributed under the License are
	15	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	16	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	17	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
921c0aec A	18	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	19	* License for the specific language governing rights and limitations
	20	* under the License."
b7080c8e A	21	*
	22	* @APPLE_LICENSE_HEADER_END@
	23	*/
	24	/*
	25	* Copyright (c) 1983, 1988, 1993
	26	* The Regents of the University of California. All rights reserved.
	27	*
	28	* Redistribution and use in source and binary forms, with or without
	29	* modification, are permitted provided that the following conditions
	30	* are met:
	31	* 1. Redistributions of source code must retain the above copyright
	32	* notice, this list of conditions and the following disclaimer.
	33	* 2. Redistributions in binary form must reproduce the above copyright
	34	* notice, this list of conditions and the following disclaimer in the
	35	* documentation and/or other materials provided with the distribution.
	36	* 3. All advertising materials mentioning features or use of this software
	37	* must display the following acknowledgement:
	38	* This product includes software developed by the University of
	39	* California, Berkeley and its contributors.
	40	* 4. Neither the name of the University nor the names of its contributors
	41	* may be used to endorse or promote products derived from this software
	42	* without specific prior written permission.
	43	*
	44	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	45	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	46	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	47	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	48	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	49	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	50	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	51	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	52	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	53	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	54	* SUCH DAMAGE.
	55	*/
	56
	57	#ifndef lint
	58	static char copyright[] =
	59	"@(#) Copyright (c) 1983, 1988, 1993\n\
	60	The Regents of the University of California. All rights reserved.\n";
	61	#endif /* not lint */
	62
	63	#ifndef lint
	64	static char sccsid[] = "@(#)trpt.c 8.1 (Berkeley) 6/6/93";
	65	#endif /* not lint */
	66
	67	#include <sys/param.h>
	68	#if BSD >= 199103
	69	#define NEWVM
	70	#endif
	71	#ifndef NEWVM
	72	#include <machine/pte.h>
	73	#include <sys/vmmac.h>
	74	#endif
	75	#include <sys/socket.h>
	76	#include <sys/socketvar.h>
	77	#define PRUREQUESTS
	78	#include <sys/protosw.h>
	79	#include <sys/file.h>
	80
	81	#include <net/route.h>
	82	#include <net/if.h>
	83
	84	#include <netinet/in.h>
85	#include <netinet/in_systm.h>
86	#include <netinet/ip.h>
87	#include <netinet/in_pcb.h>
88	#include <netinet/ip_var.h>
89	#include <netinet/tcp.h>
90	#define TCPSTATES
91	#include <netinet/tcp_fsm.h>
92	#include <netinet/tcp_seq.h>
93	#define TCPTIMERS
94	#include <netinet/tcp_timer.h>
95	#include <netinet/tcp_var.h>
96	#include <netinet/tcpip.h>
97	#define TANAMES
98	#include <netinet/tcp_debug.h>
99
100	#include <arpa/inet.h>
101
102	#include <stdio.h>
103	#include <errno.h>
104	#include <nlist.h>
105	#include <paths.h>
106
107	struct tcp_debug tcp_debug[TCP_NDEBUG];
108	int tcp_debx;
109
110	struct nlist nl[] = {
111	#define N_TCP_DEBUG 0
112	{ "_tcp_debug" },
113	#define N_TCP_DEBX 1
114	{ "_tcp_debx" },
115	#ifndef NEWVM
116	#define N_SYSMAP 2
117	{ "_Sysmap" },
118	#define N_SYSSIZE 3
119	{ "_Syssize" },
120	#endif
121	{ "" },
122	};
123
124	#ifndef NEWVM
125	static struct pte *Sysmap;
126	#endif
127	static caddr_t tcp_pcbs[TCP_NDEBUG];
128	static n_time ntime;
129	static int aflag, kflag, memf, follow, sflag, tflag;
130
131	main(argc, argv)
132	int argc;
133	char **argv;
134	{
135	extern char *optarg;
136	extern int optind;
137	int ch, i, jflag, npcbs, numeric();
138	char system, core, *malloc();
139	off_t lseek();
140
141	jflag = npcbs = 0;
142	while ((ch = getopt(argc, argv, "afjp:st")) != EOF)
143	switch (ch) {
144	case 'a':
145	++aflag;
146	break;
147	case 'f':
148	++follow;
149	setlinebuf(stdout);
150	break;
151	case 'j':
152	++jflag;
153	break;
154	case 'p':
155	if (npcbs >= TCP_NDEBUG) {
156	fputs("trpt: too many pcb's specified\n",
157	stderr);
158	exit(1);
159	}
160	(void)sscanf(optarg, "%x", (int *)&tcp_pcbs[npcbs++]);
161	break;
162	case 's':
163	++sflag;
164	break;
165	case 't':
166	++tflag;
167	break;
168	case '?':
169	default:
170	(void)fprintf(stderr,
171	"usage: trpt [-afjst] [-p hex-address] [system [core]]\n");
172	exit(1);
173	}
174	argc -= optind;
175	argv += optind;
176
177	core = _PATH_KMEM;
178	if (argc > 0) {
179	system = *argv;
180	argc--, argv++;
181	if (argc > 0) {
182	core = *argv;
183	argc--, argv++;
184	++kflag;
185	}
186	/*
187	* Discard setgid privileges if not the running kernel so that
188	* bad guys can't print interesting stuff from kernel memory.
189	*/
190	setgid(getgid());
191	}
192	else
193	system = _PATH_UNIX;
194
195	if (nlist(system, nl) < 0 \|\| !nl[0].n_value) {
196	fprintf(stderr, "trpt: %s: no namelist\n", system);
197	exit(1);
198	}
199	if ((memf = open(core, O_RDONLY)) < 0) {
200	perror(core);
201	exit(2);
202	}
203	if (kflag) {
204	#ifdef NEWVM
205	fputs("trpt: can't do core files yet\n", stderr);
206	exit(1);
207	#else
208	off_t off;
209
210	Sysmap = (struct pte *)
211	malloc((u_int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
212	if (!Sysmap) {
213	fputs("trpt: can't get memory for Sysmap.\n", stderr);
214	exit(1);
215	}
216	off = nl[N_SYSMAP].n_value & ~KERNBASE;
217	(void)lseek(memf, off, L_SET);
218	(void)read(memf, (char *)Sysmap,
219	(int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
220	#endif
221	}
222	(void)klseek(memf, (off_t)nl[N_TCP_DEBX].n_value, L_SET);
223	if (read(memf, (char *)&tcp_debx, sizeof(tcp_debx)) !=
224	sizeof(tcp_debx)) {
225	perror("trpt: tcp_debx");
226	exit(3);
227	}
228	(void)klseek(memf, (off_t)nl[N_TCP_DEBUG].n_value, L_SET);
229	if (read(memf, (char *)tcp_debug, sizeof(tcp_debug)) !=
230	sizeof(tcp_debug)) {
231	perror("trpt: tcp_debug");
232	exit(3);
233	}
234	/*
235	* If no control blocks have been specified, figure
236	* out how many distinct one we have and summarize
237	* them in tcp_pcbs for sorting the trace records
238	* below.
239	*/
240	if (!npcbs) {
241	for (i = 0; i < TCP_NDEBUG; i++) {
242	register struct tcp_debug *td = &tcp_debug[i];
243	register int j;
244
245	if (td->td_tcb == 0)
246	continue;
247	for (j = 0; j < npcbs; j++)
248	if (tcp_pcbs[j] == td->td_tcb)
249	break;
250	if (j >= npcbs)
251	tcp_pcbs[npcbs++] = td->td_tcb;
252	}
253	if (!npcbs)
254	exit(0);
255	}
256	qsort(tcp_pcbs, npcbs, sizeof(caddr_t), numeric);
257	if (jflag) {
258	for (i = 0;;) {
259	printf("%x", (int)tcp_pcbs[i]);
260	if (++i == npcbs)
261	break;
262	fputs(", ", stdout);
263	}
264	putchar('\n');
265	}
266	else for (i = 0; i < npcbs; i++) {
267	printf("\n%x:\n", (int)tcp_pcbs[i]);
268	dotrace(tcp_pcbs[i]);
269	}
270	exit(0);
271	}
272
273	dotrace(tcpcb)
274	register caddr_t tcpcb;
275	{
276	register struct tcp_debug *td;
277	register int i;
278	int prev_debx = tcp_debx;
279
280	again: if (--tcp_debx < 0)
281	tcp_debx = TCP_NDEBUG - 1;
282	for (i = prev_debx % TCP_NDEBUG; i < TCP_NDEBUG; i++) {
283	td = &tcp_debug[i];
284	if (tcpcb && td->td_tcb != tcpcb)
285	continue;
286	ntime = ntohl(td->td_time);
287	tcp_trace(td->td_act, td->td_ostate, td->td_tcb, &td->td_cb,
7ba0088d	288	&td->td_ti.ti_t, td->td_req);
b7080c8e A	289	if (i == tcp_debx)
	290	goto done;
	291	}
	292	for (i = 0; i <= tcp_debx % TCP_NDEBUG; i++) {
	293	td = &tcp_debug[i];
	294	if (tcpcb && td->td_tcb != tcpcb)
	295	continue;
	296	ntime = ntohl(td->td_time);
	297	tcp_trace(td->td_act, td->td_ostate, td->td_tcb, &td->td_cb,
7ba0088d	298	&td->td_ti.ti_t, td->td_req);
b7080c8e A	299	}
	300	done: if (follow) {
	301	prev_debx = tcp_debx + 1;
	302	if (prev_debx >= TCP_NDEBUG)
	303	prev_debx = 0;
	304	do {
	305	sleep(1);
	306	(void)klseek(memf, (off_t)nl[N_TCP_DEBX].n_value, L_SET);
	307	if (read(memf, (char *)&tcp_debx, sizeof(tcp_debx)) !=
	308	sizeof(tcp_debx)) {
	309	perror("trpt: tcp_debx");
	310	exit(3);
	311	}
	312	} while (tcp_debx == prev_debx);
	313	(void)klseek(memf, (off_t)nl[N_TCP_DEBUG].n_value, L_SET);
	314	if (read(memf, (char *)tcp_debug, sizeof(tcp_debug)) !=
	315	sizeof(tcp_debug)) {
	316	perror("trpt: tcp_debug");
	317	exit(3);
	318	}
	319	goto again;
	320	}
	321	}
	322
	323	/*
	324	* Tcp debug routines
	325	*/
	326	/ARGSUSED/
	327	tcp_trace(act, ostate, atp, tp, ti, req)
	328	short act, ostate;
	329	struct tcpcb atp, tp;
	330	struct tcpiphdr *ti;
	331	int req;
	332	{
	333	tcp_seq seq, ack;
	334	int flags, len, win, timer;
	335
	336	printf("%03ld %s:%s ",(ntime/10) % 1000, tcpstates[ostate],
	337	tanames[act]);
	338	switch (act) {
	339	case TA_INPUT:
	340	case TA_OUTPUT:
	341	case TA_DROP:
	342	if (aflag) {
	343	printf("(src=%s,%u, ",
	344	inet_ntoa(ti->ti_src), ntohs(ti->ti_sport));
	345	printf("dst=%s,%u)",
	346	inet_ntoa(ti->ti_dst), ntohs(ti->ti_dport));
	347	}
	348	seq = ti->ti_seq;
	349	ack = ti->ti_ack;
	350	len = ti->ti_len;
	351	win = ti->ti_win;
	352	if (act == TA_OUTPUT) {
	353	seq = ntohl(seq);
	354	ack = ntohl(ack);
	355	len = ntohs(len);
	356	win = ntohs(win);
	357	}
	358	if (act == TA_OUTPUT)
	359	len -= sizeof(struct tcphdr);
	360	if (len)
	361	printf("[%lx..%lx)", seq, seq + len);
	362	else
363	printf("%lx", seq);
364	printf("@%lx", ack);
365	if (win)
366	printf("(win=%x)", win);
367	flags = ti->ti_flags;
368	if (flags) {
369	register char *cp = "<";
370	#define pf(flag, string) { \
371	if (ti->ti_flags&flag) { \
372	(void)printf("%s%s", cp, string); \
373	cp = ","; \
374	} \
375	}
376	pf(TH_SYN, "SYN");
377	pf(TH_ACK, "ACK");
378	pf(TH_FIN, "FIN");
379	pf(TH_RST, "RST");
380	pf(TH_PUSH, "PUSH");
381	pf(TH_URG, "URG");
382	printf(">");
383	}
384	break;
385	case TA_USER:
386	timer = req >> 8;
387	req &= 0xff;
388	printf("%s", prurequests[req]);
389	if (req == PRU_SLOWTIMO \|\| req == PRU_FASTTIMO)
390	printf("<%s>", tcptimers[timer]);
391	break;
392	}
393	printf(" -> %s", tcpstates[tp->t_state]);
394	/* print out internal state of tp !?! */
395	printf("\n");
396	if (sflag) {
397	printf("\trcv_nxt %lx rcv_wnd %x snd_una %lx snd_nxt %lx snd_max %lx\n",
398	tp->rcv_nxt, tp->rcv_wnd, tp->snd_una, tp->snd_nxt,
399	tp->snd_max);
400	printf("\tsnd_wl1 %lx snd_wl2 %lx snd_wnd %x\n", tp->snd_wl1,
401	tp->snd_wl2, tp->snd_wnd);
402	}
403	/* print out timers? */
404	if (tflag) {
405	register char *cp = "\t";
406	register int i;
407
408	for (i = 0; i < TCPT_NTIMERS; i++) {
409	if (tp->t_timer[i] == 0)
410	continue;
411	printf("%s%s=%d", cp, tcptimers[i], tp->t_timer[i]);
412	if (i == TCPT_REXMT)
413	printf(" (t_rxtshft=%d)", tp->t_rxtshift);
414	cp = ", ";
415	}
416	if (*cp != '\t')
417	putchar('\n');
418	}
419	}
420
421	numeric(c1, c2)
422	caddr_t c1, c2;
423	{
424	return(c1 - c2);
425	}
426
427	klseek(fd, base, off)
428	int fd, off;
429	off_t base;
430	{
431	off_t lseek();
432
433	#ifndef NEWVM
434	if (kflag) { /* get kernel pte */
435	base &= ~KERNBASE;
436	base = ctob(Sysmap[btop(base)].pg_pfnum) + (base & PGOFSET);
437	}
438	#endif
439	(void)lseek(fd, base, off);
440	}