* Copyright (c) 1983 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
static char sccsid
[] = "@(#)inet.c 5.7 (Berkeley) %G%";
#include <sys/socketvar.h>
#include <netinet/in_systm.h>
#include <netinet/in_pcb.h>
#include <netinet/ip_icmp.h>
#include <netinet/icmp_var.h>
#include <netinet/ip_var.h>
#include <netinet/tcpip.h>
#include <netinet/tcp_seq.h>
#include <netinet/tcp_fsm.h>
#include <netinet/tcp_timer.h>
#include <netinet/tcp_var.h>
#include <netinet/tcp_debug.h>
#include <netinet/udp_var.h>
* 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.
register struct inpcb
*prev
, *next
;
istcp
= strcmp(name
, "tcp") == 0;
read(kmem
, (char *)&cb
, sizeof (struct inpcb
));
prev
= (struct inpcb
*)off
;
if (inpcb
.inp_next
== (struct inpcb
*)off
)
while (inpcb
.inp_next
!= (struct inpcb
*)off
) {
klseek(kmem
, (off_t
)next
, 0);
read(kmem
, (char *)&inpcb
, sizeof (inpcb
));
if (inpcb
.inp_prev
!= prev
) {
inet_lnaof(inpcb
.inp_laddr
) == INADDR_ANY
) {
klseek(kmem
, (off_t
)inpcb
.inp_socket
, 0);
read(kmem
, (char *)&sockb
, sizeof (sockb
));
klseek(kmem
, (off_t
)inpcb
.inp_ppcb
, 0);
read(kmem
, (char *)&tcpcb
, sizeof (tcpcb
));
printf("Active Internet connections");
printf(" (including servers)");
printf("%-8.8s ", "PCB");
"%-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)");
printf("%8x ", inpcb
.inp_ppcb
);
printf("%-5.5s %6d %6d ", name
, sockb
.so_rcv
.sb_cc
,
inetprint(&inpcb
.inp_laddr
, inpcb
.inp_lport
, name
);
inetprint(&inpcb
.inp_faddr
, inpcb
.inp_fport
, name
);
if (tcpcb
.t_state
< 0 || tcpcb
.t_state
>= TCP_NSTATES
)
printf(" %d", tcpcb
.t_state
);
printf(" %s", tcpstates
[tcpcb
.t_state
]);
* Dump TCP statistics structure.
read(kmem
, (char *)&tcpstat
, sizeof (tcpstat
));
#define p(f,m) printf(" m\n",tcpstat.tcps_/**/f,plural(tcpstat.tcps_/**/f))
#define p2(f1,f2,m) printf(" m\n",tcpstat.tcps_/**/f1,plural(tcpstat.tcps_/**/f1),tcpstat.tcps_/**/f2,plural(tcpstat.tcps_/**/f2))
p(sndtotal
,%d packet
%s sent
);
p2(sndpack
,sndbyte
,\t%d data packet
%s (%d byte
%s
));
p2(sndrexmitpack
,sndrexmitbyte
,\t%d data packet
%s (%d byte
%s
) retransmitted
);
p2(sndacks
,delack
,\t%d ack
-only packet
%s (%d delayed
));
p(sndurg
,\t%d URG only packet
%s
);
p(sndprobe
,\t%d window probe packet
%s
);
p(sndwinup
,\t%d window update packet
%s
);
p(sndctrl
,\t%d control packet
%s
);
p(rcvtotal
,%d packet
%s received
);
p2(rcvackpack
,rcvackbyte
,\t%d ack
%s (for %d byte
%s
));
p(rcvdupack
,\t%d duplicate ack
%s
);
p(rcvacktoomuch
,\t%d ack
%s
for unsent data
);
p2(rcvpack
,rcvbyte
,\t%d packet
%s (%d byte
%s
) received in
-sequence
);
p2(rcvduppack
,rcvdupbyte
,\t%d completely duplicate packet
%s (%d byte
%s
));
p2(rcvpartduppack
,rcvpartdupbyte
,\t%d packet
%s with some dup
. data (%d byte
%s duped
));
p2(rcvoopack
,rcvoobyte
,\t%d out
-of
-order packet
%s (%d byte
%s
));
p2(rcvpackafterwin
,rcvbyteafterwin
,\t%d packet
%s (%d byte
%s
) of data after window
);
p(rcvwinprobe
,\t%d window probe
%s
);
p(rcvwinupd
,\t%d window update packet
%s
);
p(rcvafterclose
,\t%d packet
%s received after close
);
p(rcvbadsum
,\t%d discarded
for bad checksum
%s
);
p(rcvbadoff
,\t%d discarded
for bad header offset field
%s
);
p(rcvshort
,\t%d discarded because packet too
short);
p(connattempt
,%d connection request
%s
);
p(accepts
,%d connection accept
%s
);
p(connects
,%d connection
%s
established (including accepts
));
p2(closed
,drops
,%d connection
%s
closed (including
%d drop
%s
));
p(conndrops
,%d embryonic connection
%s dropped
);
p2(rttupdated
,segstimed
,%d segment
%s updated
rtt (of
%d attempt
%s
));
p(rexmttimeo
,%d retransmit timeout
%s
);
p(timeoutdrop
,\t%d connection
%s dropped by rexmit timeout
);
p(persisttimeo
,%d persist timeout
%s
);
p(keeptimeo
,%d keepalive timeout
%s
);
p(keepprobe
,\t%d keepalive probe
%s sent
);
p(keepdrops
,\t%d connection
%s dropped by keepalive
);
* Dump UDP statistics structure.
read(kmem
, (char *)&udpstat
, sizeof (udpstat
));
printf("%s:\n\t%u incomplete header%s\n", name
,
udpstat
.udps_hdrops
, plural(udpstat
.udps_hdrops
));
printf("\t%u bad data length field%s\n",
udpstat
.udps_badlen
, plural(udpstat
.udps_badlen
));
printf("\t%u bad checksum%s\n",
udpstat
.udps_badsum
, plural(udpstat
.udps_badsum
));
* Dump IP statistics structure.
read(kmem
, (char *)&ipstat
, sizeof (ipstat
));
printf("%s:\n\t%u total packets received\n", name
,
printf("\t%u bad header checksum%s\n",
ipstat
.ips_badsum
, plural(ipstat
.ips_badsum
));
printf("\t%u with size smaller than minimum\n", ipstat
.ips_tooshort
);
printf("\t%u with data size < data length\n", ipstat
.ips_toosmall
);
printf("\t%u with header length < data size\n", ipstat
.ips_badhlen
);
printf("\t%u with data length < header length\n", ipstat
.ips_badlen
);
printf("\t%u fragment%s received\n",
ipstat
.ips_fragments
, plural(ipstat
.ips_fragments
));
printf("\t%u fragment%s dropped (dup or out of space)\n",
ipstat
.ips_fragdropped
, plural(ipstat
.ips_fragdropped
));
printf("\t%u fragment%s dropped after timeout\n",
ipstat
.ips_fragtimeout
, plural(ipstat
.ips_fragtimeout
));
printf("\t%u packet%s forwarded\n",
ipstat
.ips_forward
, plural(ipstat
.ips_forward
));
printf("\t%u packet%s not forwardable\n",
ipstat
.ips_cantforward
, plural(ipstat
.ips_cantforward
));
printf("\t%u redirect%s sent\n",
ipstat
.ips_redirectsent
, plural(ipstat
.ips_redirectsent
));
static char *icmpnames
[] = {
"destination unreachable",
"information request reply",
struct icmpstat icmpstat
;
read(kmem
, (char *)&icmpstat
, sizeof (icmpstat
));
printf("%s:\n\t%u call%s to icmp_error\n", name
,
icmpstat
.icps_error
, plural(icmpstat
.icps_error
));
printf("\t%u 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) {
printf("\tOutput histogram:\n");
printf("\t\t%s: %u\n", icmpnames
[i
],
icmpstat
.icps_outhist
[i
]);
printf("\t%u message%s with bad code fields\n",
icmpstat
.icps_badcode
, plural(icmpstat
.icps_badcode
));
printf("\t%u message%s < minimum length\n",
icmpstat
.icps_tooshort
, plural(icmpstat
.icps_tooshort
));
printf("\t%u bad checksum%s\n",
icmpstat
.icps_checksum
, plural(icmpstat
.icps_checksum
));
printf("\t%u message%s with bad length\n",
icmpstat
.icps_badlen
, plural(icmpstat
.icps_badlen
));
for (first
= 1, i
= 0; i
< ICMP_IREQREPLY
+ 1; i
++)
if (icmpstat
.icps_inhist
[i
] != 0) {
printf("\tInput histogram:\n");
printf("\t\t%s: %u\n", icmpnames
[i
],
icmpstat
.icps_inhist
[i
]);
printf("\t%u message response%s generated\n",
icmpstat
.icps_reflect
, plural(icmpstat
.icps_reflect
));
* 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
;
char line
[80], *cp
, *index();
sprintf(line
, "%.*s.", (Aflag
&& !nflag
) ? 12 : 16, inetname(*in
));
sp
= getservbyport((int)port
, proto
);
sprintf(cp
, "%.8s", sp
? sp
->s_name
: "*");
sprintf(cp
, "%d", ntohs((u_short
)port
));
printf(" %-*.*s", width
, width
, line
);
* Construct an Internet address representation.
* If the nflag has been supplied, give
* numeric value, otherwise try for symbolic name.
static char domain
[MAXHOSTNAMELEN
+ 1];
if (gethostname(domain
, MAXHOSTNAMELEN
) == 0 &&
(cp
= index(domain
, '.')))
(void) strcpy(domain
, cp
+ 1);
if (!nflag
&& in
.s_addr
!= INADDR_ANY
) {
int net
= inet_netof(in
);
int lna
= inet_lnaof(in
);
np
= getnetbyaddr(net
, AF_INET
);
hp
= gethostbyaddr((char *)&in
, sizeof (in
), AF_INET
);
if ((cp
= index(hp
->h_name
, '.')) &&
if (in
.s_addr
== INADDR_ANY
)
in
.s_addr
= ntohl(in
.s_addr
);
#define C(x) ((x) & 0xff)
sprintf(line
, "%u.%u.%u.%u", C(in
.s_addr
>> 24),
C(in
.s_addr
>> 16), C(in
.s_addr
>> 8), C(in
.s_addr
));