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

#ifndef lint
static char sccsid[] = "@(#)trpt.c	4.11 %G%";
#endif

#include <sys/param.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#define PRUREQUESTS
#include <sys/protosw.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>

n_time	ntime;
int	sflag;
int	tflag;
int	jflag;
int	aflag;
int	numeric();
struct	nlist nl[] = {
	{ "_tcp_debug" },
	{ "_tcp_debx" },
	0
};
struct	tcp_debug tcp_debug[TCP_NDEBUG];
caddr_t	tcp_pcbs[TCP_NDEBUG];
int	tcp_debx;

main(argc, argv)
	int argc;
	char **argv;
{
	int i, mask = 0, npcbs = 0;
	char *system = "/vmunix", *core = "/dev/kmem";

	argc--, argv++;
again:
	if (argc > 0 && !strcmp(*argv, "-a")) {
		aflag++, argc--, argv++;
		goto again;
	}
	if (argc > 0 && !strcmp(*argv, "-s")) {
		sflag++, argc--, argv++;
		goto again;
	}
	if (argc > 0 && !strcmp(*argv, "-t")) {
		tflag++, argc--, argv++;
		goto again;
	}
	if (argc > 0 && !strcmp(*argv, "-j")) {
		jflag++, argc--, argv++;
		goto again;
	}
	if (argc > 0 && !strcmp(*argv, "-p")) {
		argc--, argv++;
		if (argc < 1) {
			fprintf(stderr, "-p: missing tcpcb address\n");
			exit(1);
		}
		if (npcbs >= TCP_NDEBUG) {
			fprintf(stderr, "-p: too many pcb's specified\n");
			exit(1);
		}
		sscanf(*argv, "%x", &tcp_pcbs[npcbs++]);
		argc--, argv++;
		goto again;
	}
	if (argc > 0) {
		system = *argv;
		argc--, argv++;
		mask++;
	}
	if (argc > 0) {
		core = *argv;
		argc--, argv++;
		mask++;
	}
	(void) nlist(system, nl);
	if (nl[0].n_value == 0) {
		fprintf(stderr, "trpt: %s: no namelist\n", system);
		exit(1);
	}
	(void) close(0);
	if (open(core, 0) < 0) {
		fprintf(stderr, "trpt: "); perror(core);
		exit(2);
	}
	if (mask) {
		nl[0].n_value &= 0x7fffffff;
		nl[1].n_value &= 0x7fffffff;
	}
	(void) lseek(0, nl[1].n_value, 0);
	if (read(0, &tcp_debx, sizeof (tcp_debx)) != sizeof (tcp_debx)) {
		fprintf(stderr, "trpt: "); perror("tcp_debx");
		exit(3);
	}
	printf("tcp_debx=%d\n", tcp_debx);
	(void) lseek(0, nl[0].n_value, 0);
	if (read(0, tcp_debug, sizeof (tcp_debug)) != sizeof (tcp_debug)) {
		fprintf(stderr, "trpt: "); perror("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 == 0) {
		for (i = 0; i < TCP_NDEBUG; i++) {
			register int j;
			register struct tcp_debug *td = &tcp_debug[i];

			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;
		}
	}
	qsort(tcp_pcbs, npcbs, sizeof (caddr_t), numeric);
	if (jflag) {
		char *cp = "";

		for (i = 0; i < npcbs; i++) {
			printf("%s%x", cp, tcp_pcbs[i]);
			cp = ", ";
		}
		if (*cp)
			putchar('\n');
		exit(0);
	}
	for (i = 0; i < npcbs; i++) {
		printf("\n%x:\n", tcp_pcbs[i]);
		dotrace(tcp_pcbs[i]);
	}
	exit(0);
}

dotrace(tcpcb)
	register caddr_t tcpcb;
{
	register int i;
	register struct tcp_debug *td;

	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);
	}
	for (i = tcp_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);
	}
}

/*
 * Tcp debug routines
 */
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 len, flags, win, timer;
	char *cp;

	ptime(ntime);
	printf("%s:%s ", tcpstates[ostate], tanames[act]);
	switch (act) {

	case TA_INPUT:
	case TA_OUTPUT:
	case TA_DROP:
		if (aflag) {
			printf("(src=%s,%d, ", inet_ntoa(ti->ti_src),
				ntohs(ti->ti_sport));
			printf("dst=%s,%d)", 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("[%x..%x)", seq, seq+len);
		else
			printf("%x", seq);
		printf("@%x", ack);
		if (win)
			printf("(win=%x)", win);
		flags = ti->ti_flags;
		if (flags) {
			char *cp = "<";
#define pf(f) { if (ti->ti_flags&TH_/**/f) { printf("%s%s", cp, "f"); cp = ","; } }
			pf(SYN); pf(ACK); pf(FIN); pf(RST); pf(PUSH); pf(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 %x rcv_wnd %x snd_una %x snd_nxt %x snd_max %x\n",
		    tp->rcv_nxt, tp->rcv_wnd, tp->snd_una, tp->snd_nxt,
		    tp->snd_max);
		printf("\tsnd_wl1 %x snd_wl2 %x snd_wnd %x\n", tp->snd_wl1,
		    tp->snd_wl2, tp->snd_wnd);
	}
	/* print out timers? */
	if (tflag) {
		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');
	}
}

ptime(ms)
	int ms;
{

	printf("%03d ", (ms/10) % 1000);
}

numeric(c1, c2)
	caddr_t *c1, *c2;
{
	
	return (*c1 - *c2);
}
Commit	Line	Data
9a3a7863	1	#ifndef lint
7d3cb675	2	static char sccsid[] = "@(#)trpt.c 4.11 %G%";
9a3a7863 BJ	3	#endif
	4
	5	#include <sys/param.h>
	6	#include <sys/socket.h>
	7	#include <sys/socketvar.h>
	8	#define PRUREQUESTS
	9	#include <sys/protosw.h>
94a2d2a7	10
9a3a7863	11	#include <net/route.h>
9a3a7863	12	#include <net/if.h>
94a2d2a7 SL	13
	14	#include <netinet/in.h>
	15	#include <netinet/in_pcb.h>
	16	#include <netinet/in_systm.h>
	17	#include <netinet/ip.h>
	18	#include <netinet/ip_var.h>
	19	#include <netinet/tcp.h>
9a3a7863	20	#define TCPSTATES
94a2d2a7 SL	21	#include <netinet/tcp_fsm.h>
94a2d2a7 SL	22	#include <netinet/tcp_seq.h>
9a3a7863	23	#define TCPTIMERS
94a2d2a7 SL	24	#include <netinet/tcp_timer.h>
	25	#include <netinet/tcp_var.h>
	26	#include <netinet/tcpip.h>
9a3a7863	27	#define TANAMES
94a2d2a7	28	#include <netinet/tcp_debug.h>
9a3a7863	29
7d3cb675 SL	30	#include <arpa/inet.h>
7d3cb675 SL	31
eb0fbeab	32	#include <stdio.h>
94a2d2a7	33	#include <errno.h>
9a3a7863 BJ	34	#include <nlist.h>
	35
	36	n_time ntime;
	37	int sflag;
175d35a6 SL	38	int tflag;
175d35a6 SL	39	int jflag;
49173cdd	40	int aflag;
175d35a6	41	int numeric();
9a3a7863 BJ	42	struct nlist nl[] = {
	43	{ "_tcp_debug" },
	44	{ "_tcp_debx" },
	45	0
	46	};
	47	struct tcp_debug tcp_debug[TCP_NDEBUG];
175d35a6	48	caddr_t tcp_pcbs[TCP_NDEBUG];
9a3a7863 BJ	49	int tcp_debx;
	50
	51	main(argc, argv)
	52	int argc;
	53	char **argv;
	54	{
175d35a6	55	int i, mask = 0, npcbs = 0;
eb0fbeab	56	char system = "/vmunix", core = "/dev/kmem";
9a3a7863 BJ	57
	58	argc--, argv++;
	59	again:
49173cdd SL	60	if (argc > 0 && !strcmp(*argv, "-a")) {
	61	aflag++, argc--, argv++;
	62	goto again;
	63	}
9a3a7863 BJ	64	if (argc > 0 && !strcmp(*argv, "-s")) {
	65	sflag++, argc--, argv++;
	66	goto again;
	67	}
175d35a6 SL	68	if (argc > 0 && !strcmp(*argv, "-t")) {
	69	tflag++, argc--, argv++;
	70	goto again;
	71	}
	72	if (argc > 0 && !strcmp(*argv, "-j")) {
	73	jflag++, argc--, argv++;
	74	goto again;
	75	}
eb0fbeab	76	if (argc > 0 && !strcmp(*argv, "-p")) {
175d35a6	77	argc--, argv++;
eb0fbeab SL	78	if (argc < 1) {
	79	fprintf(stderr, "-p: missing tcpcb address\n");
	80	exit(1);
	81	}
175d35a6 SL	82	if (npcbs >= TCP_NDEBUG) {
	83	fprintf(stderr, "-p: too many pcb's specified\n");
	84	exit(1);
	85	}
	86	sscanf(*argv, "%x", &tcp_pcbs[npcbs++]);
eb0fbeab SL	87	argc--, argv++;
	88	goto again;
	89	}
	90	if (argc > 0) {
	91	system = *argv;
	92	argc--, argv++;
	93	mask++;
	94	}
	95	if (argc > 0) {
	96	core = *argv;
	97	argc--, argv++;
	98	mask++;
	99	}
	100	(void) nlist(system, nl);
9a3a7863	101	if (nl[0].n_value == 0) {
eb0fbeab	102	fprintf(stderr, "trpt: %s: no namelist\n", system);
9a3a7863 BJ	103	exit(1);
9a3a7863 BJ	104	}
eb0fbeab SL	105	(void) close(0);
	106	if (open(core, 0) < 0) {
	107	fprintf(stderr, "trpt: "); perror(core);
	108	exit(2);
	109	}
	110	if (mask) {
9a3a7863 BJ	111	nl[0].n_value &= 0x7fffffff;
	112	nl[1].n_value &= 0x7fffffff;
	113	}
eb0fbeab SL	114	(void) lseek(0, nl[1].n_value, 0);
	115	if (read(0, &tcp_debx, sizeof (tcp_debx)) != sizeof (tcp_debx)) {
	116	fprintf(stderr, "trpt: "); perror("tcp_debx");
	117	exit(3);
	118	}
9a3a7863	119	printf("tcp_debx=%d\n", tcp_debx);
eb0fbeab SL	120	(void) lseek(0, nl[0].n_value, 0);
	121	if (read(0, tcp_debug, sizeof (tcp_debug)) != sizeof (tcp_debug)) {
	122	fprintf(stderr, "trpt: "); perror("tcp_debug");
	123	exit(3);
	124	}
175d35a6 SL	125	/*
	126	* If no control blocks have been specified, figure
	127	* out how many distinct one we have and summarize
	128	* them in tcp_pcbs for sorting the trace records
	129	* below.
	130	*/
	131	if (npcbs == 0) {
	132	for (i = 0; i < TCP_NDEBUG; i++) {
	133	register int j;
	134	register struct tcp_debug *td = &tcp_debug[i];
	135
	136	if (td->td_tcb == 0)
	137	continue;
	138	for (j = 0; j < npcbs; j++)
	139	if (tcp_pcbs[j] == td->td_tcb)
	140	break;
	141	if (j >= npcbs)
	142	tcp_pcbs[npcbs++] = td->td_tcb;
	143	}
	144	}
	145	qsort(tcp_pcbs, npcbs, sizeof (caddr_t), numeric);
	146	if (jflag) {
	147	char *cp = "";
10ce0f6a	148
175d35a6 SL	149	for (i = 0; i < npcbs; i++) {
	150	printf("%s%x", cp, tcp_pcbs[i]);
	151	cp = ", ";
	152	}
	153	if (*cp)
	154	putchar('\n');
	155	exit(0);
	156	}
	157	for (i = 0; i < npcbs; i++) {
	158	printf("\n%x:\n", tcp_pcbs[i]);
	159	dotrace(tcp_pcbs[i]);
	160	}
	161	exit(0);
	162	}
	163
	164	dotrace(tcpcb)
	165	register caddr_t tcpcb;
	166	{
	167	register int i;
	168	register struct tcp_debug *td;
	169
	170	for (i = 0; i < tcp_debx % TCP_NDEBUG; i++) {
	171	td = &tcp_debug[i];
eb0fbeab SL	172	if (tcpcb && td->td_tcb != tcpcb)
eb0fbeab SL	173	continue;
10ce0f6a	174	ntime = ntohl(td->td_time);
9a3a7863 BJ	175	tcp_trace(td->td_act, td->td_ostate, td->td_tcb, &td->td_cb,
	176	&td->td_ti, td->td_req);
	177	}
175d35a6 SL	178	for (i = tcp_debx % TCP_NDEBUG; i < TCP_NDEBUG; i++) {
175d35a6 SL	179	td = &tcp_debug[i];
eb0fbeab SL	180	if (tcpcb && td->td_tcb != tcpcb)
eb0fbeab SL	181	continue;
10ce0f6a	182	ntime = ntohl(td->td_time);
9a3a7863 BJ	183	tcp_trace(td->td_act, td->td_ostate, td->td_tcb, &td->td_cb,
	184	&td->td_ti, td->td_req);
	185	}
9a3a7863 BJ	186	}
	187
	188	/*
	189	* Tcp debug routines
	190	*/
	191	tcp_trace(act, ostate, atp, tp, ti, req)
	192	short act, ostate;
	193	struct tcpcb atp, tp;
	194	struct tcpiphdr *ti;
	195	int req;
	196	{
	197	tcp_seq seq, ack;
10ce0f6a	198	int len, flags, win, timer;
9a3a7863 BJ	199	char *cp;
	200
	201	ptime(ntime);
175d35a6	202	printf("%s:%s ", tcpstates[ostate], tanames[act]);
9a3a7863 BJ	203	switch (act) {
	204
	205	case TA_INPUT:
	206	case TA_OUTPUT:
3cd6f35b	207	case TA_DROP:
49173cdd	208	if (aflag) {
7d3cb675	209	printf("(src=%s,%d, ", inet_ntoa(ti->ti_src),
49173cdd	210	ntohs(ti->ti_sport));
7d3cb675	211	printf("dst=%s,%d)", inet_ntoa(ti->ti_dst),
49173cdd SL	212	ntohs(ti->ti_dport));
49173cdd SL	213	}
9a3a7863 BJ	214	seq = ti->ti_seq;
	215	ack = ti->ti_ack;
	216	len = ti->ti_len;
	217	win = ti->ti_win;
9a3a7863 BJ	218	if (act == TA_OUTPUT) {
	219	seq = ntohl(seq);
	220	ack = ntohl(ack);
	221	len = ntohs(len);
	222	win = ntohs(win);
	223	}
9a3a7863 BJ	224	if (act == TA_OUTPUT)
	225	len -= sizeof (struct tcphdr);
	226	if (len)
	227	printf("[%x..%x)", seq, seq+len);
	228	else
	229	printf("%x", seq);
	230	printf("@%x", ack);
	231	if (win)
23c416d7	232	printf("(win=%x)", win);
9a3a7863 BJ	233	flags = ti->ti_flags;
	234	if (flags) {
	235	char *cp = "<";
	236	#define pf(f) { if (ti->ti_flags&TH_/**/f) { printf("%s%s", cp, "f"); cp = ","; } }
ed06dc42	237	pf(SYN); pf(ACK); pf(FIN); pf(RST); pf(PUSH); pf(URG);
9a3a7863 BJ	238	printf(">");
	239	}
	240	break;
	241
	242	case TA_USER:
10ce0f6a SL	243	timer = req >> 8;
	244	req &= 0xff;
	245	printf("%s", prurequests[req]);
	246	if (req == PRU_SLOWTIMO \|\| req == PRU_FASTTIMO)
	247	printf("<%s>", tcptimers[timer]);
9a3a7863 BJ	248	break;
	249	}
	250	printf(" -> %s", tcpstates[tp->t_state]);
	251	/* print out internal state of tp !?! */
	252	printf("\n");
	253	if (sflag) {
49282770	254	printf("\trcv_nxt %x rcv_wnd %x snd_una %x snd_nxt %x snd_max %x\n",
eb0fbeab SL	255	tp->rcv_nxt, tp->rcv_wnd, tp->snd_una, tp->snd_nxt,
	256	tp->snd_max);
	257	printf("\tsnd_wl1 %x snd_wl2 %x snd_wnd %x\n", tp->snd_wl1,
	258	tp->snd_wl2, tp->snd_wnd);
9a3a7863	259	}
175d35a6 SL	260	/* print out timers? */
	261	if (tflag) {
	262	char *cp = "\t";
	263	register int i;
	264
	265	for (i = 0; i < TCPT_NTIMERS; i++) {
	266	if (tp->t_timer[i] == 0)
	267	continue;
	268	printf("%s%s=%d", cp, tcptimers[i], tp->t_timer[i]);
	269	if (i == TCPT_REXMT)
	270	printf(" (t_rxtshft=%d)", tp->t_rxtshift);
	271	cp = ", ";
	272	}
	273	if (*cp != '\t')
	274	putchar('\n');
	275	}
9a3a7863 BJ	276	}
	277
	278	ptime(ms)
	279	int ms;
	280	{
	281
	282	printf("%03d ", (ms/10) % 1000);
	283	}
175d35a6 SL	284
	285	numeric(c1, c2)
	286	caddr_t c1, c2;
	287	{
	288
	289	return (c1 - c2);
	290	}