[unix-history] / usr / src / usr.bin / netstat / inet.c

#ifndef lint
static char sccsid[] = "@(#)inet.c	4.13 83/09/16";
#endif

#include <sys/types.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/mbuf.h>
#include <sys/protosw.h>

#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_pcb.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/icmp_var.h>
#include <netinet/ip_var.h>
#include <netinet/tcp.h>
#include <netinet/tcpip.h>
#include <netinet/tcp_seq.h>
#define TCPSTATES
#include <netinet/tcp_fsm.h>
#include <netinet/tcp_timer.h>
#include <netinet/tcp_var.h>
#include <netinet/tcp_debug.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>

#include <netdb.h>

struct	inpcb inpcb;
struct	tcpcb tcpcb;
struct	socket socket;
struct	protosw proto;
extern	int kmem;
extern	int Aflag;
extern	int aflag;
extern	int nflag;

static	int first = 1;
char	*inetname();

/*
 * Print a summary of connections related to an Internet
 * protocol.  For TCP, also give state of connection.
 * Listening processes (aflag) are suppressed unless the
 * -a (all) flag is specified.
 */
protopr(off, name)
	off_t off;
	char *name;
{
	struct inpcb cb;
	register struct inpcb *prev, *next;
	int istcp;

	if (off == 0) {
		printf("%s control block: symbol not in namelist\n", name);
		return;
	}
	istcp = strcmp(name, "tcp") == 0;
	klseek(kmem, off, 0);
	read(kmem, &cb, sizeof (struct inpcb));
	inpcb = cb;
	prev = (struct inpcb *)off;
	if (first) {
		printf("Active connections");
		if (aflag)
			printf(" (including servers)");
		putchar('\n');
		if (Aflag)
			printf("%-8.8s ", "PCB");
		printf("%-5.5s %-6.6s %-6.6s  %-18.18s %-18.18s %s\n",
			"Proto", "Recv-Q", "Send-Q",
			"Local Address", "Foreign Address", "(state)");
		first = 0;
	}
	while (inpcb.inp_next != (struct inpcb *)off) {
		char *cp;

		next = inpcb.inp_next;
		klseek(kmem, (off_t)next, 0);
		read(kmem, &inpcb, sizeof (inpcb));
		if (inpcb.inp_prev != prev) {
			printf("???\n");
			break;
		}
		if (!aflag &&
		  inet_lnaof(inpcb.inp_laddr.s_addr) == INADDR_ANY) {
			prev = next;
			continue;
		}
		klseek(kmem, (off_t)inpcb.inp_socket, 0);
		read(kmem, &socket, sizeof (socket));
		if (istcp) {
			klseek(kmem, (off_t)inpcb.inp_ppcb, 0);
			read(kmem, &tcpcb, sizeof (tcpcb));
		}
		if (Aflag)
			printf("%8x ", inpcb.inp_ppcb);
		printf("%-5.5s %6d %6d ", name, socket.so_rcv.sb_cc,
			socket.so_snd.sb_cc);
		inetprint(&inpcb.inp_laddr, inpcb.inp_lport, name);
		inetprint(&inpcb.inp_faddr, inpcb.inp_fport, name);
		if (istcp) {
			if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES)
				printf(" %d", tcpcb.t_state);
			else
				printf(" %s", tcpstates[tcpcb.t_state]);
		}
		putchar('\n');
		prev = next;
	}
}

/*
 * Dump TCP statistics structure.
 */
tcp_stats(off, name)
	off_t off;
	char *name;
{
	struct tcpstat tcpstat;

	if (off == 0) {
		printf("%sstat: symbol not in namelist\n", name);
		return;
	}
	klseek(kmem, off, 0);
	read(kmem, (char *)&tcpstat, sizeof (tcpstat));
	printf("%s:\n\t%d bad header checksum%s\n", name,
		tcpstat.tcps_badsum, plural(tcpstat.tcps_badsum));
	printf("\t%d bad header offset field%s\n",
		tcpstat.tcps_badoff, plural(tcpstat.tcps_badoff));
	printf("\t%d incomplete header%s\n",
		tcpstat.tcps_hdrops, plural(tcpstat.tcps_hdrops));
#ifdef notdef
	printf("\t%d bad segment%s\n",
		tcpstat.tcps_badsegs, plural(tcpstat.badsegs));
	printf("\t%d unacknowledged packet%s\n",
		tcpstat.tcps_unack, plural(tcpstat.tcps_unack));
#endif
}

/*
 * Dump UDP statistics structure.
 */
udp_stats(off, name)
	off_t off;
	char *name;
{
	struct udpstat udpstat;

	if (off == 0) {
		printf("%sstat: symbol not in namelist\n", name);
		return;
	}
	klseek(kmem, off, 0);
	read(kmem, (char *)&udpstat, sizeof (udpstat));
	printf("%s:\n\t%d bad header checksum%s\n", name,
		udpstat.udps_badsum, plural(udpstat.udps_badsum));
	printf("\t%d incomplete header%s\n",
		udpstat.udps_hdrops, plural(udpstat.udps_hdrops));
	printf("\t%d bad data length field%s\n",
		udpstat.udps_badlen, plural(udpstat.udps_badlen));
}

/*
 * Dump IP statistics structure.
 */
ip_stats(off, name)
	off_t off;
	char *name;
{
	struct ipstat ipstat;

	if (off == 0) {
		printf("%sstat: symbol not in namelist\n", name);
		return;
	}
	klseek(kmem, off, 0);
	read(kmem, (char *)&ipstat, sizeof (ipstat));
	printf("%s:\n\t%d bad header checksum%s\n", name,
		ipstat.ips_badsum, plural(ipstat.ips_badsum));
	printf("\t%d with size smaller than minimum\n", ipstat.ips_tooshort);
	printf("\t%d with data size < data length\n", ipstat.ips_toosmall);
	printf("\t%d with header length < data size\n", ipstat.ips_badhlen);
	printf("\t%d with data length < header length\n", ipstat.ips_badlen);
}

static	char *icmpnames[] = {
	"echo reply",
	"#1",
	"#2",
	"destination unreachable",
	"source quench",
	"routing redirect",
	"#6",
	"#7",
	"echo",
	"#9",
	"#10",
	"time exceeded",
	"parameter problem",
	"time stamp",
	"time stamp reply",
	"information request",
	"information request reply"
};

/*
 * Dump ICMP statistics.
 */
icmp_stats(off, name)
	off_t off;
	char *name;
{
	struct icmpstat icmpstat;
	register int i, first;

	if (off == 0) {
		printf("%sstat: symbol not in namelist\n", name);
		return;
	}
	klseek(kmem, off, 0);
	read(kmem, (char *)&icmpstat, sizeof (icmpstat));
	printf("%s:\n\t%d call%s to icmp_error\n", name,
		icmpstat.icps_error, plural(icmpstat.icps_error));
	printf("\t%d error%s not generated 'cuz old message too short\n",
		icmpstat.icps_oldshort, plural(icmpstat.icps_oldshort));
	printf("\t%d error%s not generated 'cuz old message was icmp\n",
		icmpstat.icps_oldicmp, plural(icmpstat.icps_oldicmp));
	for (first = 1, i = 0; i < ICMP_IREQREPLY + 1; i++)
		if (icmpstat.icps_outhist[i] != 0) {
			if (first) {
				printf("\tOutput histogram:\n");
				first = 0;
			}
			printf("\t\t%s: %d\n", icmpnames[i],
				icmpstat.icps_outhist[i]);
		}
	printf("\t%d message%s < minimum length\n",
		icmpstat.icps_tooshort, plural(icmpstat.icps_tooshort));
	printf("\t%d bad checksum%s\n",
		icmpstat.icps_checksum, plural(icmpstat.icps_checksum));
	printf("\t%d message%s with bad length\n",
		icmpstat.icps_badlen, plural(icmpstat.icps_badlen));
	printf("\t%d message response%s generated\n",
		icmpstat.icps_reflect, plural(icmpstat.icps_reflect));
	for (first = 1, i = 0; i < ICMP_IREQREPLY + 1; i++)
		if (icmpstat.icps_inhist[i] != 0) {
			if (first) {
				printf("\tInput histogram:\n");
				first = 0;
			}
			printf("\t\t%s: %d\n", icmpnames[i],
				icmpstat.icps_inhist[i]);
		}
}

/*
 * Pretty print an Internet address (net address + port).
 * If the nflag was specified, use numbers instead of names.
 */
inetprint(in, port, proto)
	register struct in_addr *in;
	int port;
	char *proto;
{
	struct servent *sp = 0;
	char line[80], *cp, *index();

	sprintf(line, "%.10s.", inetname(*in));
	cp = index(line, '\0');
	if (!nflag && port)
		sp = getservbyport(port, proto);
	if (sp || port == 0)
		sprintf(cp, "%.8s", sp ? sp->s_name : "*");
	else
		sprintf(cp, "%d", ntohs((u_short)port));
	printf(" %-18.18s", line);
}

/*
 * Construct an Internet address representation.
 * If the nflag has been supplied, give 
 * numeric value, otherwise try for symbolic name.
 */
char *
inetname(in)
	struct in_addr in;
{
	char *cp = 0;
	static char line[50];

	if (!nflag) {
		if (inet_lnaof(in) == INADDR_ANY) {
			struct netent *np;

			np = getnetbyaddr(inet_netof(in), AF_INET);
			if (np)
				cp = np->n_name;
		} else {
			struct hostent *hp;

			hp = gethostbyaddr(&in, sizeof (struct in_addr),
				AF_INET);
			if (hp)
				cp = hp->h_name;
		}
	}
	if (in.s_addr == INADDR_ANY)
		strcpy(line, "*");
	else if (cp)
		strcpy(line, cp);
	else {
		u_char *ucp = (u_char *)&in;
		sprintf(line, "%u.%u.%u.%u", ucp[0], ucp[1], ucp[2], ucp[3]);
	}
	return (line);
}
Commit	Line	Data
c7fc5288	1	#ifndef lint
4fbbc6d9	2	static char sccsid[] = "@(#)inet.c 4.13 83/09/16";
c7fc5288 SL	3	#endif
	4
	5	#include <sys/types.h>
	6	#include <sys/socket.h>
	7	#include <sys/socketvar.h>
	8	#include <sys/mbuf.h>
	9	#include <sys/protosw.h>
44906619	10
c7fc5288	11	#include <net/route.h>
44906619 SL	12	#include <netinet/in.h>
	13	#include <netinet/in_systm.h>
	14	#include <netinet/in_pcb.h>
	15	#include <netinet/ip.h>
	16	#include <netinet/ip_icmp.h>
7333c75b	17	#include <netinet/icmp_var.h>
44906619 SL	18	#include <netinet/ip_var.h>
	19	#include <netinet/tcp.h>
	20	#include <netinet/tcpip.h>
	21	#include <netinet/tcp_seq.h>
c7fc5288	22	#define TCPSTATES
44906619 SL	23	#include <netinet/tcp_fsm.h>
	24	#include <netinet/tcp_timer.h>
	25	#include <netinet/tcp_var.h>
	26	#include <netinet/tcp_debug.h>
	27	#include <netinet/udp.h>
	28	#include <netinet/udp_var.h>
	29
c7fc5288 SL	30	#include <netdb.h>
	31
	32	struct inpcb inpcb;
	33	struct tcpcb tcpcb;
	34	struct socket socket;
	35	struct protosw proto;
	36	extern int kmem;
	37	extern int Aflag;
	38	extern int aflag;
	39	extern int nflag;
	40
	41	static int first = 1;
	42	char *inetname();
	43
	44	/*
	45	* Print a summary of connections related to an Internet
	46	* protocol. For TCP, also give state of connection.
	47	* Listening processes (aflag) are suppressed unless the
	48	* -a (all) flag is specified.
	49	*/
	50	protopr(off, name)
	51	off_t off;
	52	char *name;
	53	{
	54	struct inpcb cb;
	55	register struct inpcb prev, next;
	56	int istcp;
	57
	58	if (off == 0) {
	59	printf("%s control block: symbol not in namelist\n", name);
	60	return;
	61	}
	62	istcp = strcmp(name, "tcp") == 0;
	63	klseek(kmem, off, 0);
	64	read(kmem, &cb, sizeof (struct inpcb));
	65	inpcb = cb;
	66	prev = (struct inpcb *)off;
	67	if (first) {
	68	printf("Active connections");
	69	if (aflag)
	70	printf(" (including servers)");
	71	putchar('\n');
	72	if (Aflag)
	73	printf("%-8.8s ", "PCB");
	74	printf("%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n",
	75	"Proto", "Recv-Q", "Send-Q",
	76	"Local Address", "Foreign Address", "(state)");
	77	first = 0;
	78	}
	79	while (inpcb.inp_next != (struct inpcb *)off) {
	80	char *cp;
	81
	82	next = inpcb.inp_next;
	83	klseek(kmem, (off_t)next, 0);
	84	read(kmem, &inpcb, sizeof (inpcb));
	85	if (inpcb.inp_prev != prev) {
	86	printf("???\n");
	87	break;
	88	}
	89	if (!aflag &&
444a708d	90	inet_lnaof(inpcb.inp_laddr.s_addr) == INADDR_ANY) {
c7fc5288 SL	91	prev = next;
	92	continue;
	93	}
	94	klseek(kmem, (off_t)inpcb.inp_socket, 0);
	95	read(kmem, &socket, sizeof (socket));
	96	if (istcp) {
	97	klseek(kmem, (off_t)inpcb.inp_ppcb, 0);
	98	read(kmem, &tcpcb, sizeof (tcpcb));
	99	}
	100	if (Aflag)
	101	printf("%8x ", inpcb.inp_ppcb);
	102	printf("%-5.5s %6d %6d ", name, socket.so_rcv.sb_cc,
	103	socket.so_snd.sb_cc);
	104	inetprint(&inpcb.inp_laddr, inpcb.inp_lport, name);
	105	inetprint(&inpcb.inp_faddr, inpcb.inp_fport, name);
	106	if (istcp) {
	107	if (tcpcb.t_state < 0 \|\| tcpcb.t_state >= TCP_NSTATES)
	108	printf(" %d", tcpcb.t_state);
	109	else
	110	printf(" %s", tcpstates[tcpcb.t_state]);
	111	}
	112	putchar('\n');
	113	prev = next;
	114	}
	115	}
	116
6df0a927 SL	117	/*
	118	* Dump TCP statistics structure.
	119	*/
	120	tcp_stats(off, name)
	121	off_t off;
	122	char *name;
	123	{
	124	struct tcpstat tcpstat;
	125
	126	if (off == 0) {
	127	printf("%sstat: symbol not in namelist\n", name);
	128	return;
	129	}
	130	klseek(kmem, off, 0);
	131	read(kmem, (char *)&tcpstat, sizeof (tcpstat));
d69a747c SL	132	printf("%s:\n\t%d bad header checksum%s\n", name,
	133	tcpstat.tcps_badsum, plural(tcpstat.tcps_badsum));
	134	printf("\t%d bad header offset field%s\n",
	135	tcpstat.tcps_badoff, plural(tcpstat.tcps_badoff));
	136	printf("\t%d incomplete header%s\n",
	137	tcpstat.tcps_hdrops, plural(tcpstat.tcps_hdrops));
6df0a927	138	#ifdef notdef
d69a747c SL	139	printf("\t%d bad segment%s\n",
	140	tcpstat.tcps_badsegs, plural(tcpstat.badsegs));
	141	printf("\t%d unacknowledged packet%s\n",
	142	tcpstat.tcps_unack, plural(tcpstat.tcps_unack));
6df0a927 SL	143	#endif
	144	}
	145
	146	/*
	147	* Dump UDP statistics structure.
	148	*/
	149	udp_stats(off, name)
	150	off_t off;
	151	char *name;
	152	{
	153	struct udpstat udpstat;
	154
	155	if (off == 0) {
	156	printf("%sstat: symbol not in namelist\n", name);
	157	return;
	158	}
	159	klseek(kmem, off, 0);
	160	read(kmem, (char *)&udpstat, sizeof (udpstat));
d69a747c SL	161	printf("%s:\n\t%d bad header checksum%s\n", name,
	162	udpstat.udps_badsum, plural(udpstat.udps_badsum));
	163	printf("\t%d incomplete header%s\n",
	164	udpstat.udps_hdrops, plural(udpstat.udps_hdrops));
	165	printf("\t%d bad data length field%s\n",
	166	udpstat.udps_badlen, plural(udpstat.udps_badlen));
6df0a927 SL	167	}
	168
	169	/*
	170	* Dump IP statistics structure.
	171	*/
	172	ip_stats(off, name)
	173	off_t off;
	174	char *name;
	175	{
	176	struct ipstat ipstat;
	177
	178	if (off == 0) {
	179	printf("%sstat: symbol not in namelist\n", name);
	180	return;
	181	}
	182	klseek(kmem, off, 0);
	183	read(kmem, (char *)&ipstat, sizeof (ipstat));
d69a747c SL	184	printf("%s:\n\t%d bad header checksum%s\n", name,
	185	ipstat.ips_badsum, plural(ipstat.ips_badsum));
	186	printf("\t%d with size smaller than minimum\n", ipstat.ips_tooshort);
	187	printf("\t%d with data size < data length\n", ipstat.ips_toosmall);
	188	printf("\t%d with header length < data size\n", ipstat.ips_badhlen);
	189	printf("\t%d with data length < header length\n", ipstat.ips_badlen);
6df0a927 SL	190	}
6df0a927 SL	191
7333c75b SL	192	static char *icmpnames[] = {
	193	"echo reply",
	194	"#1",
	195	"#2",
	196	"destination unreachable",
	197	"source quench",
	198	"routing redirect",
	199	"#6",
	200	"#7",
	201	"echo",
	202	"#9",
	203	"#10",
	204	"time exceeded",
	205	"parameter problem",
	206	"time stamp",
	207	"time stamp reply",
	208	"information request",
	209	"information request reply"
	210	};
	211
	212	/*
	213	* Dump ICMP statistics.
	214	*/
	215	icmp_stats(off, name)
	216	off_t off;
	217	char *name;
	218	{
	219	struct icmpstat icmpstat;
	220	register int i, first;
	221
	222	if (off == 0) {
	223	printf("%sstat: symbol not in namelist\n", name);
	224	return;
	225	}
	226	klseek(kmem, off, 0);
	227	read(kmem, (char *)&icmpstat, sizeof (icmpstat));
d69a747c SL	228	printf("%s:\n\t%d call%s to icmp_error\n", name,
	229	icmpstat.icps_error, plural(icmpstat.icps_error));
	230	printf("\t%d error%s not generated 'cuz old message too short\n",
	231	icmpstat.icps_oldshort, plural(icmpstat.icps_oldshort));
	232	printf("\t%d error%s not generated 'cuz old message was icmp\n",
	233	icmpstat.icps_oldicmp, plural(icmpstat.icps_oldicmp));
94ff35a7	234	for (first = 1, i = 0; i < ICMP_IREQREPLY + 1; i++)
7333c75b SL	235	if (icmpstat.icps_outhist[i] != 0) {
	236	if (first) {
	237	printf("\tOutput histogram:\n");
	238	first = 0;
	239	}
	240	printf("\t\t%s: %d\n", icmpnames[i],
	241	icmpstat.icps_outhist[i]);
	242	}
d69a747c SL	243	printf("\t%d message%s < minimum length\n",
d69a747c SL	244	icmpstat.icps_tooshort, plural(icmpstat.icps_tooshort));
4fbbc6d9 SL	245	printf("\t%d bad checksum%s\n",
4fbbc6d9 SL	246	icmpstat.icps_checksum, plural(icmpstat.icps_checksum));
d69a747c SL	247	printf("\t%d message%s with bad length\n",
	248	icmpstat.icps_badlen, plural(icmpstat.icps_badlen));
	249	printf("\t%d message response%s generated\n",
	250	icmpstat.icps_reflect, plural(icmpstat.icps_reflect));
94ff35a7	251	for (first = 1, i = 0; i < ICMP_IREQREPLY + 1; i++)
7333c75b SL	252	if (icmpstat.icps_inhist[i] != 0) {
	253	if (first) {
	254	printf("\tInput histogram:\n");
	255	first = 0;
	256	}
	257	printf("\t\t%s: %d\n", icmpnames[i],
	258	icmpstat.icps_inhist[i]);
	259	}
	260	}
	261
c7fc5288 SL	262	/*
	263	* Pretty print an Internet address (net address + port).
	264	* If the nflag was specified, use numbers instead of names.
	265	*/
	266	inetprint(in, port, proto)
	267	register struct in_addr *in;
	268	int port;
	269	char *proto;
	270	{
	271	struct servent *sp = 0;
	272	char line[80], cp, index();
	273
	274	sprintf(line, "%.10s.", inetname(*in));
	275	cp = index(line, '\0');
c7fc5288	276	if (!nflag && port)
9bce7b73	277	sp = getservbyport(port, proto);
c7fc5288 SL	278	if (sp \|\| port == 0)
	279	sprintf(cp, "%.8s", sp ? sp->s_name : "*");
	280	else
1f34f70d	281	sprintf(cp, "%d", ntohs((u_short)port));
c7fc5288 SL	282	printf(" %-18.18s", line);
	283	}
	284
c7fc5288 SL	285	/*
	286	* Construct an Internet address representation.
	287	* If the nflag has been supplied, give
	288	* numeric value, otherwise try for symbolic name.
	289	*/
	290	char *
	291	inetname(in)
	292	struct in_addr in;
	293	{
	294	char *cp = 0;
	295	static char line[50];
	296
	297	if (!nflag) {
444a708d SL	298	if (inet_lnaof(in) == INADDR_ANY) {
444a708d SL	299	struct netent *np;
c7fc5288	300
444a708d	301	np = getnetbyaddr(inet_netof(in), AF_INET);
c7fc5288 SL	302	if (np)
	303	cp = np->n_name;
	304	} else {
9bce7b73	305	struct hostent *hp;
c7fc5288	306
3394f0b5 SL	307	hp = gethostbyaddr(&in, sizeof (struct in_addr),
3394f0b5 SL	308	AF_INET);
c7fc5288 SL	309	if (hp)
	310	cp = hp->h_name;
	311	}
	312	}
	313	if (in.s_addr == INADDR_ANY)
	314	strcpy(line, "*");
	315	else if (cp)
	316	strcpy(line, cp);
	317	else {
	318	u_char ucp = (u_char )&in;
	319	sprintf(line, "%u.%u.%u.%u", ucp[0], ucp[1], ucp[2], ucp[3]);
	320	}
	321	return (line);
	322	}