+/*
+ * Copyright (c) 1983, 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * %sccs.include.redist.c%
+ */
+
#ifndef lint
-static char sccsid[] = "@(#)inet.c 4.12 83/05/30";
-#endif
+static char sccsid[] = "@(#)inet.c 5.19 (Berkeley) %G%";
+#endif /* not lint */
-#include <sys/types.h>
+#include <sys/param.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/mbuf.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/in_pcb.h>
#include <netinet/ip_icmp.h>
#include <netinet/icmp_var.h>
#include <netinet/ip_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
+#include <arpa/inet.h>
#include <netdb.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include "netstat.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;
+struct socket sockb;
-static int first = 1;
-char *inetname();
+char *inetname __P((struct in_addr *));
+void inetprint __P((struct in_addr *, int, char *));
/*
* Print a summary of connections related to an Internet
* Listening processes (aflag) are suppressed unless the
* -a (all) flag is specified.
*/
+void
protopr(off, name)
- off_t off;
+ u_long off;
char *name;
{
struct inpcb cb;
register struct inpcb *prev, *next;
int istcp;
+ static int first = 1;
- if (off == 0) {
- printf("%s control block: symbol not in namelist\n", name);
+ if (off == 0)
return;
- }
istcp = strcmp(name, "tcp") == 0;
- klseek(kmem, off, 0);
- read(kmem, &cb, sizeof (struct inpcb));
+ kread(off, (char *)&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;
- }
+ if (inpcb.inp_next == (struct inpcb *)off)
+ return;
while (inpcb.inp_next != (struct inpcb *)off) {
- char *cp;
-
next = inpcb.inp_next;
- klseek(kmem, (off_t)next, 0);
- read(kmem, &inpcb, sizeof (inpcb));
+ kread((u_long)next, (char *)&inpcb, sizeof (inpcb));
if (inpcb.inp_prev != prev) {
printf("???\n");
break;
}
if (!aflag &&
- inet_lnaof(inpcb.inp_laddr.s_addr) == INADDR_ANY) {
+ inet_lnaof(inpcb.inp_laddr) == INADDR_ANY) {
prev = next;
continue;
}
- klseek(kmem, (off_t)inpcb.inp_socket, 0);
- read(kmem, &socket, sizeof (socket));
+ kread((u_long)inpcb.inp_socket, (char *)&sockb, sizeof (sockb));
if (istcp) {
- klseek(kmem, (off_t)inpcb.inp_ppcb, 0);
- read(kmem, &tcpcb, sizeof (tcpcb));
+ kread((u_long)inpcb.inp_ppcb,
+ (char *)&tcpcb, sizeof (tcpcb));
+ }
+ if (first) {
+ printf("Active Internet connections");
+ if (aflag)
+ printf(" (including servers)");
+ putchar('\n');
+ if (Aflag)
+ printf("%-8.8s ", "PCB");
+ printf(Aflag ?
+ "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s %s\n" :
+ "%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s %s\n",
+ "Proto", "Recv-Q", "Send-Q",
+ "Local Address", "Foreign Address", "(state)");
+ first = 0;
}
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)
+ printf("%8x ", inpcb.inp_ppcb);
+ else
+ printf("%8x ", next);
+ printf("%-5.5s %6d %6d ", name, sockb.so_rcv.sb_cc,
+ sockb.so_snd.sb_cc);
+ inetprint(&inpcb.inp_laddr, (int)inpcb.inp_lport, name);
+ inetprint(&inpcb.inp_faddr, (int)inpcb.inp_fport, name);
if (istcp) {
if (tcpcb.t_state < 0 || tcpcb.t_state >= TCP_NSTATES)
printf(" %d", tcpcb.t_state);
/*
* Dump TCP statistics structure.
*/
+void
tcp_stats(off, name)
- off_t off;
+ u_long off;
char *name;
{
struct tcpstat tcpstat;
- if (off == 0) {
- printf("%sstat: symbol not in namelist\n", name);
+ if (off == 0)
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
+ printf ("%s:\n", name);
+ kread(off, (char *)&tcpstat, sizeof (tcpstat));
+
+#define p(f, m) if (tcpstat.f || sflag <= 1) \
+ printf(m, tcpstat.f, plural(tcpstat.f))
+#define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
+ printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2, plural(tcpstat.f2))
+
+ p(tcps_sndtotal, "\t%d packet%s sent\n");
+ p2(tcps_sndpack,tcps_sndbyte,
+ "\t\t%d data packet%s (%d byte%s)\n");
+ p2(tcps_sndrexmitpack, tcps_sndrexmitbyte,
+ "\t\t%d data packet%s (%d byte%s) retransmitted\n");
+ p2(tcps_sndacks, tcps_delack,
+ "\t\t%d ack-only packet%s (%d delayed)\n");
+ p(tcps_sndurg, "\t\t%d URG only packet%s\n");
+ p(tcps_sndprobe, "\t\t%d window probe packet%s\n");
+ p(tcps_sndwinup, "\t\t%d window update packet%s\n");
+ p(tcps_sndctrl, "\t\t%d control packet%s\n");
+ p(tcps_rcvtotal, "\t%d packet%s received\n");
+ p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t%d ack%s (for %d byte%s)\n");
+ p(tcps_rcvdupack, "\t\t%d duplicate ack%s\n");
+ p(tcps_rcvacktoomuch, "\t\t%d ack%s for unsent data\n");
+ p2(tcps_rcvpack, tcps_rcvbyte,
+ "\t\t%d packet%s (%d byte%s) received in-sequence\n");
+ p2(tcps_rcvduppack, tcps_rcvdupbyte,
+ "\t\t%d completely duplicate packet%s (%d byte%s)\n");
+ p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte,
+ "\t\t%d packet%s with some dup. data (%d byte%s duped)\n");
+ p2(tcps_rcvoopack, tcps_rcvoobyte,
+ "\t\t%d out-of-order packet%s (%d byte%s)\n");
+ p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin,
+ "\t\t%d packet%s (%d byte%s) of data after window\n");
+ p(tcps_rcvwinprobe, "\t\t%d window probe%s\n");
+ p(tcps_rcvwinupd, "\t\t%d window update packet%s\n");
+ p(tcps_rcvafterclose, "\t\t%d packet%s received after close\n");
+ p(tcps_rcvbadsum, "\t\t%d discarded for bad checksum%s\n");
+ p(tcps_rcvbadoff, "\t\t%d discarded for bad header offset field%s\n");
+ p(tcps_rcvshort, "\t\t%d discarded because packet too short\n");
+ p(tcps_connattempt, "\t%d connection request%s\n");
+ p(tcps_accepts, "\t%d connection accept%s\n");
+ p(tcps_connects, "\t%d connection%s established (including accepts)\n");
+ p2(tcps_closed, tcps_drops,
+ "\t%d connection%s closed (including %d drop%s)\n");
+ p(tcps_conndrops, "\t%d embryonic connection%s dropped\n");
+ p2(tcps_rttupdated, tcps_segstimed,
+ "\t%d segment%s updated rtt (of %d attempt%s)\n");
+ p(tcps_rexmttimeo, "\t%d retransmit timeout%s\n");
+ p(tcps_timeoutdrop, "\t\t%d connection%s dropped by rexmit timeout\n");
+ p(tcps_persisttimeo, "\t%d persist timeout%s\n");
+ p(tcps_keeptimeo, "\t%d keepalive timeout%s\n");
+ p(tcps_keepprobe, "\t\t%d keepalive probe%s sent\n");
+ p(tcps_keepdrops, "\t\t%d connection%s dropped by keepalive\n");
+#undef p
+#undef p2
}
/*
* Dump UDP statistics structure.
*/
+void
udp_stats(off, name)
- off_t off;
+ u_long off;
char *name;
{
struct udpstat udpstat;
- if (off == 0) {
- printf("%sstat: symbol not in namelist\n", name);
+ if (off == 0)
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));
+ kread(off, (char *)&udpstat, sizeof (udpstat));
+ printf("%s:\n", name);
+#define p(f, m) if (udpstat.f || sflag <= 1) \
+ printf(m, udpstat.f, plural(udpstat.f))
+ p(udps_hdrops, "\t%u incomplete header%s\n");
+ p(udps_badlen, "\t%u bad data length field%s\n");
+ p(udps_badsum, "\t%u bad checksum%s\n");
+ p(udps_noport, "\t%u no port%s\n");
+ p(udps_noportbcast, "\t%u (arrived as bcast) no port%s\n");
+#undef p
+#ifdef sun
+ printf("\t%d socket overflow%s\n",
+ udpstat.udps_fullsock, plural(udpstat.udps_fullsock));
+#endif
}
/*
* Dump IP statistics structure.
*/
+void
ip_stats(off, name)
- off_t off;
+ u_long off;
char *name;
{
struct ipstat ipstat;
- if (off == 0) {
- printf("%sstat: symbol not in namelist\n", name);
+ if (off == 0)
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);
+ kread(off, (char *)&ipstat, sizeof (ipstat));
+ printf("%s:\n", name);
+
+#define p(f, m) if (ipstat.f || sflag <= 1) \
+ printf(m, ipstat.f, plural(ipstat.f))
+
+ p(ips_total, "\t%u total packet%s received\n");
+ p(ips_badsum, "\t%u bad header checksum%s\n");
+ p(ips_tooshort, "\t%u with size smaller than minimum\n");
+ p(ips_toosmall, "\t%u with data size < data length\n");
+ p(ips_badhlen, "\t%u with header length < data size\n");
+ p(ips_badlen, "\t%u with data length < header length\n");
+ p(ips_fragments, "\t%u fragment%s received\n");
+ p(ips_fragdropped, "\t%u fragment%s dropped (dup or out of space)\n");
+ p(ips_fragtimeout, "\t%u fragment%s dropped after timeout\n");
+ p(ips_forward, "\t%u packet%s forwarded\n");
+ p(ips_cantforward, "\t%u packet%s not forwardable\n");
+ p(ips_redirectsent, "\t%u redirect%s sent\n");
+#undef p
+#endif
}
static char *icmpnames[] = {
"time stamp",
"time stamp reply",
"information request",
- "information request reply"
+ "information request reply",
+ "address mask request",
+ "address mask reply",
};
/*
* Dump ICMP statistics.
*/
+void
icmp_stats(off, name)
- off_t off;
+ u_long off;
char *name;
{
struct icmpstat icmpstat;
register int i, first;
- if (off == 0) {
- printf("%sstat: symbol not in namelist\n", name);
+ if (off == 0)
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++)
+ kread(off, (char *)&icmpstat, sizeof (icmpstat));
+ printf("%s:\n", name);
+
+#define p(f, m) if (icmpstat.f || sflag <= 1) \
+ printf(m, icmpstat.f, plural(icmpstat.f))
+
+ p(icps_error, "\t%u call%s to icmp_error\n");
+ p(icps_oldicmp,
+ "\t%u error%s not generated 'cuz old message was icmp\n");
+ for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
if (icmpstat.icps_outhist[i] != 0) {
if (first) {
printf("\tOutput histogram:\n");
first = 0;
}
- printf("\t\t%s: %d\n", icmpnames[i],
+ printf("\t\t%s: %u\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);
- 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++)
+ p(icps_badcode, "\t%u message%s with bad code fields\n");
+ p(icps_tooshort, "\t%u message%s < minimum length\n");
+ p(icps_checksum, "\t%u bad checksum%s\n");
+ p(icps_badlen, "\t%u message%s with bad length\n");
+ for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
if (icmpstat.icps_inhist[i] != 0) {
if (first) {
printf("\tInput histogram:\n");
first = 0;
}
- printf("\t\t%s: %d\n", icmpnames[i],
+ printf("\t\t%s: %u\n", icmpnames[i],
icmpstat.icps_inhist[i]);
}
+ p(icps_reflect, "\t%u message response%s generated\n");
+#undef p
}
/*
* Pretty print an Internet address (net address + port).
* If the nflag was specified, use numbers instead of names.
*/
+void
inetprint(in, port, proto)
register struct in_addr *in;
int port;
char *proto;
{
struct servent *sp = 0;
- char line[80], *cp, *index();
+ char line[80], *cp;
+ int width;
- sprintf(line, "%.10s.", inetname(*in));
+ sprintf(line, "%.*s.", (Aflag && !nflag) ? 12 : 16, inetname(in));
cp = index(line, '\0');
if (!nflag && port)
- sp = getservbyport(port, proto);
+ sp = getservbyport((int)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);
+ width = Aflag ? 18 : 22;
+ printf(" %-*.*s", width, width, line);
}
/*
* Construct an Internet address representation.
- * If the nflag has been supplied, give
+ * If the nflag has been supplied, give
* numeric value, otherwise try for symbolic name.
*/
char *
-inetname(in)
- struct in_addr in;
+inetname(inp)
+ struct in_addr *inp;
{
- char *cp = 0;
+ register char *cp;
static char line[50];
+ struct hostent *hp;
+ struct netent *np;
+ static char domain[MAXHOSTNAMELEN + 1];
+ static int first = 1;
- if (!nflag) {
- if (inet_lnaof(in) == INADDR_ANY) {
- struct netent *np;
+ if (first && !nflag) {
+ first = 0;
+ if (gethostname(domain, MAXHOSTNAMELEN) == 0 &&
+ (cp = index(domain, '.')))
+ (void) strcpy(domain, cp + 1);
+ else
+ domain[0] = 0;
+ }
+ cp = 0;
+ if (!nflag && inp->s_addr != INADDR_ANY) {
+ int net = inet_netof(*inp);
+ int lna = inet_lnaof(*inp);
- np = getnetbyaddr(inet_netof(in), AF_INET);
+ if (lna == INADDR_ANY) {
+ np = getnetbyaddr(net, AF_INET);
if (np)
cp = np->n_name;
- } else {
- struct hostent *hp;
-
- hp = gethostbyaddr(&in, sizeof (struct in_addr),
- AF_INET);
- if (hp)
+ }
+ if (cp == 0) {
+ hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
+ if (hp) {
+ if ((cp = index(hp->h_name, '.')) &&
+ !strcmp(cp + 1, domain))
+ *cp = 0;
cp = hp->h_name;
+ }
}
}
- if (in.s_addr == INADDR_ANY)
+ if (inp->s_addr == INADDR_ANY)
strcpy(line, "*");
else if (cp)
strcpy(line, cp);
else {
- u_char *ucp = (u_char *)∈
- sprintf(line, "%u.%u.%u.%u", ucp[0], ucp[1], ucp[2], ucp[3]);
+ inp->s_addr = ntohl(inp->s_addr);
+#define C(x) ((x) & 0xff)
+ sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24),
+ C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr));
}
return (line);
}