[unix-history] / usr / src / usr.sbin / trpt / trpt.c

/*
 * Copyright (c) 1983, 1988 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#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[] = "@(#)trpt.c	5.4 (Berkeley) %G%";
#endif /* not lint */

#include <machine/pte.h>

#include <sys/param.h>
#include <sys/vmmac.h>
#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_pcb.h>
#include <netinet/in_systm.h>
#include <netinet/ip.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>

struct nlist nl[] = {
#define	N_TCP_DEBUG	0
	{ "_tcp_debug" },
#define	N_TCP_DEBX	1
	{ "_tcp_debx" },
#define	N_SYSMAP	2
	{ "_Sysmap" },
#define	N_SYSSIZE	3
	{ "_Syssize" },
	{ "" },
};

static struct pte	*Sysmap;
static struct tcp_debug	tcp_debug[TCP_NDEBUG];
static caddr_t	tcp_pcbs[TCP_NDEBUG];
static n_time	ntime;
static int	aflag, kflag, memf, follow, sflag, tcp_debx, 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((char)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:
			fputs("usage: trpt [-afjst] [-p hex-address] [system [core]]\n", stderr);
			exit(1);
		}
	argc -= optind;
	argv += optind;

	core = "/dev/kmem";
	if (argc > 0) {
		system = *argv;
		argc--, argv++;
		if (argc > 0) {
			core = *argv;
			argc--, argv++;
			++kflag;
		}
	}
	else
		system = "/vmunix";

	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) {
		off_t off;

		Sysmap = (struct pte *)
		   malloc((u_int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
		if (!Sysmap) {
			fputs("arp: 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)));
	}
	(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, dst=%s,%u)", inet_ntoa(ti->ti_src),
			    ntohs(ti->ti_sport), 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) { \
	if (ti->ti_flags&flag) \
		printf("%s%s", cp, "f"); \
		cp = ","; \
	}
			pf(TH_SYN);
			pf(TH_ACK);
			pf(TH_FIN);
			pf(TH_RST);
			pf(TH_PUSH);
			pf(TH_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();

	if (kflag) {	/* get kernel pte */
		base &= ~KERNBASE;
		base = ctob(Sysmap[btop(base)].pg_pfnum) + (base & PGOFSET);
	}
	(void)lseek(fd, base, off);
}
Commit	Line	Data
5ff67f98	1	/*
7c5704a5	2	* Copyright (c) 1983, 1988 Regents of the University of California.
5ff67f98 DF	3	* All rights reserved. The Berkeley software License Agreement
	4	* specifies the terms and conditions for redistribution.
	5	*/
	6
	7	#ifndef lint
	8	char copyright[] =
7c5704a5	9	"@(#) Copyright (c) 1983, 1988 Regents of the University of California.\n\
5ff67f98	10	All rights reserved.\n";
7c5704a5	11	#endif /* not lint */
5ff67f98	12
9a3a7863	13	#ifndef lint
7c5704a5 KB	14	static char sccsid[] = "@(#)trpt.c 5.4 (Berkeley) %G%";
	15	#endif /* not lint */
	16
	17	#include <machine/pte.h>
9a3a7863 BJ	18
9a3a7863 BJ	19	#include <sys/param.h>
7c5704a5	20	#include <sys/vmmac.h>
9a3a7863 BJ	21	#include <sys/socket.h>
	22	#include <sys/socketvar.h>
	23	#define PRUREQUESTS
	24	#include <sys/protosw.h>
7c5704a5	25	#include <sys/file.h>
94a2d2a7	26
9a3a7863	27	#include <net/route.h>
9a3a7863	28	#include <net/if.h>
94a2d2a7 SL	29
	30	#include <netinet/in.h>
	31	#include <netinet/in_pcb.h>
	32	#include <netinet/in_systm.h>
	33	#include <netinet/ip.h>
	34	#include <netinet/ip_var.h>
	35	#include <netinet/tcp.h>
9a3a7863	36	#define TCPSTATES
94a2d2a7 SL	37	#include <netinet/tcp_fsm.h>
94a2d2a7 SL	38	#include <netinet/tcp_seq.h>
9a3a7863	39	#define TCPTIMERS
94a2d2a7 SL	40	#include <netinet/tcp_timer.h>
	41	#include <netinet/tcp_var.h>
	42	#include <netinet/tcpip.h>
9a3a7863	43	#define TANAMES
94a2d2a7	44	#include <netinet/tcp_debug.h>
9a3a7863	45
7d3cb675 SL	46	#include <arpa/inet.h>
7d3cb675 SL	47
eb0fbeab	48	#include <stdio.h>
94a2d2a7	49	#include <errno.h>
9a3a7863 BJ	50	#include <nlist.h>
9a3a7863 BJ	51
7c5704a5 KB	52	struct nlist nl[] = {
7c5704a5 KB	53	#define N_TCP_DEBUG 0
9a3a7863	54	{ "_tcp_debug" },
7c5704a5	55	#define N_TCP_DEBX 1
9a3a7863	56	{ "_tcp_debx" },
7c5704a5 KB	57	#define N_SYSMAP 2
	58	{ "_Sysmap" },
	59	#define N_SYSSIZE 3
	60	{ "_Syssize" },
	61	{ "" },
9a3a7863	62	};
7c5704a5 KB	63
	64	static struct pte *Sysmap;
	65	static struct tcp_debug tcp_debug[TCP_NDEBUG];
	66	static caddr_t tcp_pcbs[TCP_NDEBUG];
	67	static n_time ntime;
	68	static int aflag, kflag, memf, follow, sflag, tcp_debx, tflag;
9a3a7863 BJ	69
	70	main(argc, argv)
	71	int argc;
	72	char **argv;
	73	{
7c5704a5 KB	74	extern char *optarg;
	75	extern int optind;
	76	int ch, i, jflag, npcbs, numeric();
	77	char system, core, *malloc();
	78	off_t lseek();
9a3a7863	79
7c5704a5 KB	80	jflag = npcbs = 0;
	81	while ((ch = getopt(argc, argv, "afjp:st")) != EOF)
	82	switch((char)ch) {
	83	case 'a':
	84	++aflag;
	85	break;
	86	case 'f':
	87	++follow;
	88	setlinebuf(stdout);
	89	break;
	90	case 'j':
	91	++jflag;
	92	break;
	93	case 'p':
	94	if (npcbs >= TCP_NDEBUG) {
	95	fputs("trpt: too many pcb's specified\n",
	96	stderr);
	97	exit(1);
	98	}
	99	(void)sscanf(optarg, "%x", (int *)&tcp_pcbs[npcbs++]);
	100	break;
	101	case 's':
	102	++sflag;
	103	break;
	104	case 't':
	105	++tflag;
	106	break;
	107	case '?':
	108	default:
	109	fputs("usage: trpt [-afjst] [-p hex-address] [system [core]]\n", stderr);
175d35a6 SL	110	exit(1);
175d35a6 SL	111	}
7c5704a5 KB	112	argc -= optind;
	113	argv += optind;
	114
	115	core = "/dev/kmem";
eb0fbeab SL	116	if (argc > 0) {
	117	system = *argv;
	118	argc--, argv++;
7c5704a5 KB	119	if (argc > 0) {
	120	core = *argv;
	121	argc--, argv++;
	122	++kflag;
	123	}
eb0fbeab	124	}
7c5704a5 KB	125	else
	126	system = "/vmunix";
	127
	128	if (nlist(system, nl) < 0 \|\| !nl[0].n_value) {
eb0fbeab	129	fprintf(stderr, "trpt: %s: no namelist\n", system);
9a3a7863 BJ	130	exit(1);
9a3a7863 BJ	131	}
7c5704a5 KB	132	if ((memf = open(core, O_RDONLY)) < 0) {
7c5704a5 KB	133	perror(core);
eb0fbeab SL	134	exit(2);
eb0fbeab SL	135	}
7c5704a5 KB	136	if (kflag) {
	137	off_t off;
	138
	139	Sysmap = (struct pte *)
	140	malloc((u_int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
	141	if (!Sysmap) {
	142	fputs("arp: can't get memory for Sysmap.\n", stderr);
	143	exit(1);
	144	}
	145	off = nl[N_SYSMAP].n_value & ~KERNBASE;
	146	(void)lseek(memf, off, L_SET);
	147	(void)read(memf, (char *)Sysmap,
	148	(int)(nl[N_SYSSIZE].n_value * sizeof(struct pte)));
9a3a7863	149	}
7c5704a5 KB	150	(void)klseek(memf, (off_t)nl[N_TCP_DEBX].n_value, L_SET);
	151	if (read(memf, (char *)&tcp_debx, sizeof(tcp_debx)) !=
	152	sizeof(tcp_debx)) {
	153	perror("trpt: tcp_debx");
eb0fbeab SL	154	exit(3);
eb0fbeab SL	155	}
7c5704a5 KB	156	(void)klseek(memf, (off_t)nl[N_TCP_DEBUG].n_value, L_SET);
	157	if (read(memf, (char *)tcp_debug, sizeof(tcp_debug)) !=
	158	sizeof(tcp_debug)) {
	159	perror("trpt: tcp_debug");
eb0fbeab SL	160	exit(3);
eb0fbeab SL	161	}
175d35a6 SL	162	/*
	163	* If no control blocks have been specified, figure
	164	* out how many distinct one we have and summarize
	165	* them in tcp_pcbs for sorting the trace records
	166	* below.
	167	*/
7c5704a5	168	if (!npcbs) {
175d35a6	169	for (i = 0; i < TCP_NDEBUG; i++) {
175d35a6	170	register struct tcp_debug *td = &tcp_debug[i];
7c5704a5	171	register int j;
175d35a6 SL	172
	173	if (td->td_tcb == 0)
	174	continue;
	175	for (j = 0; j < npcbs; j++)
	176	if (tcp_pcbs[j] == td->td_tcb)
	177	break;
	178	if (j >= npcbs)
	179	tcp_pcbs[npcbs++] = td->td_tcb;
	180	}
7c5704a5 KB	181	if (!npcbs)
7c5704a5 KB	182	exit(0);
175d35a6	183	}
7c5704a5	184	qsort(tcp_pcbs, npcbs, sizeof(caddr_t), numeric);
175d35a6	185	if (jflag) {
7c5704a5 KB	186	for (i = 0;;) {
	187	printf("%x", (int)tcp_pcbs[i]);
	188	if (++i == npcbs)
	189	break;
	190	fputs(", ", stdout);
175d35a6	191	}
7c5704a5	192	putchar('\n');
175d35a6	193	}
7c5704a5 KB	194	else for (i = 0; i < npcbs; i++) {
7c5704a5 KB	195	printf("\n%x:\n", (int)tcp_pcbs[i]);
175d35a6 SL	196	dotrace(tcp_pcbs[i]);
	197	}
	198	exit(0);
	199	}
	200
	201	dotrace(tcpcb)
	202	register caddr_t tcpcb;
	203	{
175d35a6	204	register struct tcp_debug *td;
7c5704a5	205	register int i;
89586647	206	int prev_debx = tcp_debx;
175d35a6	207
7c5704a5	208	again: if (--tcp_debx < 0)
89586647 MK	209	tcp_debx = TCP_NDEBUG - 1;
89586647 MK	210	for (i = prev_debx % TCP_NDEBUG; i < TCP_NDEBUG; i++) {
175d35a6	211	td = &tcp_debug[i];
eb0fbeab SL	212	if (tcpcb && td->td_tcb != tcpcb)
eb0fbeab SL	213	continue;
10ce0f6a	214	ntime = ntohl(td->td_time);
9a3a7863 BJ	215	tcp_trace(td->td_act, td->td_ostate, td->td_tcb, &td->td_cb,
9a3a7863 BJ	216	&td->td_ti, td->td_req);
89586647 MK	217	if (i == tcp_debx)
89586647 MK	218	goto done;
9a3a7863	219	}
89586647	220	for (i = 0; i <= tcp_debx % TCP_NDEBUG; i++) {
175d35a6	221	td = &tcp_debug[i];
eb0fbeab SL	222	if (tcpcb && td->td_tcb != tcpcb)
eb0fbeab SL	223	continue;
10ce0f6a	224	ntime = ntohl(td->td_time);
9a3a7863 BJ	225	tcp_trace(td->td_act, td->td_ostate, td->td_tcb, &td->td_cb,
	226	&td->td_ti, td->td_req);
	227	}
7c5704a5 KB	228	done: if (follow) {
	229	prev_debx = tcp_debx + 1;
	230	if (prev_debx >= TCP_NDEBUG)
	231	prev_debx = 0;
	232	do {
	233	sleep(1);
	234	(void)klseek(memf, (off_t)nl[N_TCP_DEBX].n_value, L_SET);
	235	if (read(memf, (char *)&tcp_debx, sizeof(tcp_debx)) !=
	236	sizeof(tcp_debx)) {
	237	perror("trpt: tcp_debx");
	238	exit(3);
	239	}
	240	} while (tcp_debx == prev_debx);
	241	(void)klseek(memf, (off_t)nl[N_TCP_DEBUG].n_value, L_SET);
	242	if (read(memf, (char *)tcp_debug, sizeof(tcp_debug)) !=
	243	sizeof(tcp_debug)) {
	244	perror("trpt: tcp_debug");
89586647 MK	245	exit(3);
89586647 MK	246	}
7c5704a5	247	goto again;
89586647	248	}
9a3a7863 BJ	249	}
	250
	251	/*
	252	* Tcp debug routines
	253	*/
7c5704a5	254	/ARGSUSED/
9a3a7863 BJ	255	tcp_trace(act, ostate, atp, tp, ti, req)
	256	short act, ostate;
	257	struct tcpcb atp, tp;
	258	struct tcpiphdr *ti;
	259	int req;
	260	{
	261	tcp_seq seq, ack;
7c5704a5	262	int flags, len, win, timer;
9a3a7863	263
7c5704a5 KB	264	printf("%03ld %s:%s ",(ntime/10) % 1000, tcpstates[ostate],
7c5704a5 KB	265	tanames[act]);
9a3a7863	266	switch (act) {
9a3a7863 BJ	267	case TA_INPUT:
9a3a7863 BJ	268	case TA_OUTPUT:
3cd6f35b	269	case TA_DROP:
7c5704a5 KB	270	if (aflag)
	271	printf("(src=%s,%u, dst=%s,%u)", inet_ntoa(ti->ti_src),
	272	ntohs(ti->ti_sport), inet_ntoa(ti->ti_dst),
	273	ntohs(ti->ti_dport));
9a3a7863 BJ	274	seq = ti->ti_seq;
	275	ack = ti->ti_ack;
	276	len = ti->ti_len;
	277	win = ti->ti_win;
9a3a7863 BJ	278	if (act == TA_OUTPUT) {
	279	seq = ntohl(seq);
	280	ack = ntohl(ack);
	281	len = ntohs(len);
	282	win = ntohs(win);
	283	}
9a3a7863	284	if (act == TA_OUTPUT)
7c5704a5	285	len -= sizeof(struct tcphdr);
9a3a7863	286	if (len)
7c5704a5	287	printf("[%lx..%lx)", seq, seq + len);
9a3a7863	288	else
7c5704a5 KB	289	printf("%lx", seq);
7c5704a5 KB	290	printf("@%lx", ack);
9a3a7863	291	if (win)
23c416d7	292	printf("(win=%x)", win);
9a3a7863 BJ	293	flags = ti->ti_flags;
9a3a7863 BJ	294	if (flags) {
7c5704a5 KB	295	register char *cp = "<";
	296	#define pf(flag) { \
	297	if (ti->ti_flags&flag) \
	298	printf("%s%s", cp, "f"); \
	299	cp = ","; \
	300	}
	301	pf(TH_SYN);
	302	pf(TH_ACK);
	303	pf(TH_FIN);
	304	pf(TH_RST);
	305	pf(TH_PUSH);
	306	pf(TH_URG);
9a3a7863 BJ	307	printf(">");
	308	}
	309	break;
9a3a7863	310	case TA_USER:
10ce0f6a SL	311	timer = req >> 8;
	312	req &= 0xff;
	313	printf("%s", prurequests[req]);
	314	if (req == PRU_SLOWTIMO \|\| req == PRU_FASTTIMO)
	315	printf("<%s>", tcptimers[timer]);
9a3a7863 BJ	316	break;
	317	}
	318	printf(" -> %s", tcpstates[tp->t_state]);
	319	/* print out internal state of tp !?! */
	320	printf("\n");
	321	if (sflag) {
7c5704a5	322	printf("\trcv_nxt %lx rcv_wnd %x snd_una %lx snd_nxt %lx snd_max %lx\n",
eb0fbeab SL	323	tp->rcv_nxt, tp->rcv_wnd, tp->snd_una, tp->snd_nxt,
eb0fbeab SL	324	tp->snd_max);
7c5704a5	325	printf("\tsnd_wl1 %lx snd_wl2 %lx snd_wnd %x\n", tp->snd_wl1,
eb0fbeab	326	tp->snd_wl2, tp->snd_wnd);
9a3a7863	327	}
175d35a6 SL	328	/* print out timers? */
175d35a6 SL	329	if (tflag) {
7c5704a5	330	register char *cp = "\t";
175d35a6 SL	331	register int i;
	332
	333	for (i = 0; i < TCPT_NTIMERS; i++) {
	334	if (tp->t_timer[i] == 0)
	335	continue;
	336	printf("%s%s=%d", cp, tcptimers[i], tp->t_timer[i]);
	337	if (i == TCPT_REXMT)
	338	printf(" (t_rxtshft=%d)", tp->t_rxtshift);
	339	cp = ", ";
	340	}
	341	if (*cp != '\t')
	342	putchar('\n');
	343	}
9a3a7863 BJ	344	}
9a3a7863 BJ	345
7c5704a5 KB	346	numeric(c1, c2)
7c5704a5 KB	347	caddr_t c1, c2;
9a3a7863	348	{
7c5704a5	349	return(c1 - c2);
9a3a7863	350	}
175d35a6	351
7c5704a5 KB	352	klseek(fd, base, off)
	353	int fd, off;
	354	off_t base;
175d35a6	355	{
7c5704a5 KB	356	off_t lseek();
	357
	358	if (kflag) { /* get kernel pte */
	359	base &= ~KERNBASE;
	360	base = ctob(Sysmap[btop(base)].pg_pfnum) + (base & PGOFSET);
	361	}
	362	(void)lseek(fd, base, off);
175d35a6	363	}