75 Commits

Author SHA1 Message Date
andre
97ae8d6506 'netstat -A -p tcp' doesn't print the Socket but the Tcpcb pointer in the
first column.
2007-05-13 22:32:32 +00:00
maxim
0c15c5c2c2 o Fill the list of icmp types; make its size depend on ICMP_MAXTYPE.
o Print "unknown ICMP" instead of "(null)" if we don't have a description         for a icmp type.

Based on code

Submitted by:	Christoph Weber-Fahr
PR:		misc/112126
MFC after:	2 weeks
2007-04-30 12:27:04 +00:00
mohans
384aeb29f6 Reap FIN_WAIT_2 connections marked SOCANTRCVMORE faster. This mitigate
potential issues where the peer does not close, potentially leaving
thousands of connections in FIN_WAIT_2. This is controlled by a new sysctl
fast_finwait2_recycle, which is disabled by default.

Reviewed by: gnn, silby.
2007-02-26 22:25:21 +00:00
wkoszek
605d460600 Export tcps_rcvmemdrop available in 'struct tcpstat' with netstat(1).
Requested by:	Tomasz Pilat <tomasz.pilat (at) axelspringer.pl>
Approved by:	andre
2006-09-20 12:29:12 +00:00
yar
59fab84bab - Achieve WARNS=3 by using sparse initializers or avoiding initializers at all.
- Fix a nlist initialization: it should be terminated by a NULL entry.
- Constify.
- Catch an unused parameter.

Tested on:	i386 amd64 ia64
2006-07-28 16:16:40 +00:00
yar
e1db503689 Achieve WARNS=2 by using uintmax_t to pass around 64-bit quantities,
including to printf().  Using uintmax_t is also robust to further
extensions in both the C language and the bitwidth of kernel counters.

Tested on:	i386 amd64 ia64
2006-07-28 16:09:19 +00:00
ru
07d3bbca19 Silence a warning on systems without carp(4). 2005-04-12 08:47:04 +00:00
ps
f01ea9b626 Add limits on the number of elements in the sack scoreboard both
per-connection and globally. This eliminates potential DoS attacks
where SACK scoreboard elements tie up too much memory.

Submitted by:	Raja Mukerji (raja at moselle dot com).
Reviewed by:	Mohan Srinivasan (mohans at yahoo-inc dot com).
2005-03-09 23:14:10 +00:00
glebius
e1d22638d0 Add CARP (Common Address Redundancy Protocol), which allows multiple
hosts to share an IP address, providing high availability and load
balancing.

Original work on CARP done by Michael Shalayeff, with many
additions by Marco Pfatschbacher and Ryan McBride.

FreeBSD port done solely by Max Laier.

Patch by:	mlaier
Obtained from:	OpenBSD (mickey, mcbride)
2005-02-22 13:04:05 +00:00
charnier
cd48a1d32b Add __FBSDID. Replace local variable sin by sockin to not conflict with sin(3).
Use warnx() instead of warn() when error message is not of any interest. Add
prototypes.
2004-07-26 20:18:11 +00:00
ps
f5e286321c Add SACK statistics to netstat. 2004-06-29 20:05:45 +00:00
bms
6f2c3ad82d Make netstat(1) more closely follow documented behaviour. If a TCP
socket in LISTEN state happens to be bound to an interface, it will
show up in netstat(1) output even without the -a switch.

As the definition of "sockets used by server processes" is a
difficult one to qualify with regards to UDP, do not change the
output behaviour for UDP sockets.

PR:		bin/26359
2004-06-16 07:00:50 +00:00
fjoe
94247dad2e Add missing dot and newline in a message.
Submitted by:	Igor Sysoev <is (at) rambler-co.ru>
MFC after:	3 days
2004-06-02 18:45:05 +00:00
ru
11a1318135 Output style nit. 2004-05-12 07:36:59 +00:00
silby
bd609915e0 Add the bad reset statistic (corresponds to tcp_input.c rev 1.235) 2004-04-26 02:57:33 +00:00
des
08e8eb2b40 Do not print a warning about net.inet.pim.stats if errno is
ENOENT, because that means we do not have PIM in the kernel.

Submitted by:	hmp
MFC after:	1 week
2004-03-12 11:22:50 +00:00
ru
feaeb43d02 Print the correct ICMP statistics for "no return routes". 2003-10-23 13:53:19 +00:00
hsu
27325403c6 1. Add support for printing PIM-related statistics with
netstat -s -p pim

2. Print information about the bandwidth meters installed in the kernel with
	netstat -g

Submitted by:	Pavlin Radoslavov <pavlin@icir.org>
2003-08-07 18:21:21 +00:00
mdodd
ccc6071f7e Back out support for RFC3514.
RFC3514 poses an unacceptale risk to compliant systems.
2003-04-02 20:14:44 +00:00
mdodd
e72fdee732 Implement support for RFC 3514 (The Security Flag in the IPv4 Header).
(See: ftp://ftp.rfc-editor.org/in-notes/rfc3514.txt)

This fulfills the host requirements for userland support by
way of the setsockopt() IP_EVIL_INTENT message.

There are three sysctl tunables provided to govern system behavior.

	net.inet.ip.rfc3514:

		Enables support for rfc3514.  As this is an
		Informational RFC and support is not yet widespread
		this option is disabled by default.

	net.inet.ip.hear_no_evil

		 If set the host will discard all received evil packets.

	net.inet.ip.speak_no_evil

		If set the host will discard all transmitted evil packets.

The IP statistics counter 'ips_evil' (available via 'netstat') provides
information on the number of 'evil' packets recieved.

For reference, the '-E' option to 'ping' has been provided to demonstrate
and test the implementation.
2003-04-01 08:21:44 +00:00
mtm
2da153c5bb o Typo/Grammar fixes
o Added mini-function to correctly handle singular/plural
	  of words ending in 'ly'

Approved by: markm (mentor)
Not objected to by: -audit
2003-01-14 16:02:56 +00:00
dwmalone
cb4604919f Warns cleanups for netstat:
1) Include arpa/inet.h for ntohs.
2) Constness fixes.
3) Fix shadowing except for "sin" which shouldn't be in scope.
4) Remove register keyword.
5) Add missing initialsers to user defined structs.
5) Make prototype of netname6 globally visable.
6) Use right macros for printing syncache stats (even though entrie isn't
   a word).
2002-09-05 17:06:51 +00:00
jdp
86b3836232 Widen struct sockbuf's sb_timeo member to int from short. With
non-default but reasonable values of hz this member overflowed,
breaking NFS over UDP.

Also, as long as I'm plowing up struct sockbuf ... Change certain
members from u_long/long to u_int/int in order to reduce wasted
space on 64-bit machines.  This change was requested by Andrew
Gallatin.

Netstat and systat need to be rebuilt.  I am incrementing
__FreeBSD_version in case any ports need to change.
2002-07-24 03:02:43 +00:00
dillon
62fef107e4 Add the tcps_sndrexmitbad statistic, keep track of late acks that caused
unnecessary retransmissions.
2002-07-19 18:29:38 +00:00
ru
cfe5212a8b - Make ip_rtaddr() global, and use it to look up the correct source
address in icmp_reflect().
- Two new "struct icmpstat" members: icps_badaddr and icps_noroute.

PR:		kern/31575
Obtained from:	BSD/OS
MFC after:	1 week
2001-11-30 10:40:28 +00:00
jlemon
7e4737a17a Add syncache statistics to netstat. 2001-11-22 04:48:52 +00:00
ru
733af41f5a Don't print stray socket addresses (-A) with the listen queue display (-L).
Also, print socket's protocol with the -L.
2001-09-07 11:06:28 +00:00
ru
f8e11dde26 Add netstat(1) knob to reset net.inet.{ip|icmp|tcp|udp|igmp}.stats.
For example, ``netstat -s -p ip -z'' will show and reset IP stats.

PR:		bin/17338
2001-06-23 17:17:59 +00:00
assar
f5fc9b5340 remove warnings
remove superfluous declarations
make things more consistent
2001-06-15 23:55:45 +00:00
assar
ee746c97f9 remove K&R support 2001-06-15 23:35:13 +00:00
assar
6c0b683445 revert removal of warning and K&R support
Requested by: bde
2001-06-15 23:07:59 +00:00
assar
9e34fe7efd remove most of the warnings 2001-06-15 01:53:05 +00:00
assar
ea6e16bc20 add the option -S for printing port numbers symbolically but addresses
numerically.  clean up the CFLAGS in Makefile.
2001-06-15 00:25:44 +00:00
ume
832f8d2249 Sync with recent KAME.
This work was based on kame-20010528-freebsd43-snap.tgz and some
critical problem after the snap was out were fixed.
There are many many changes since last KAME merge.

TODO:
  - The definitions of SADB_* in sys/net/pfkeyv2.h are still different
    from RFC2407/IANA assignment because of binary compatibility
    issue.  It should be fixed under 5-CURRENT.
  - ip6po_m member of struct ip6_pktopts is no longer used.  But, it
    is still there because of binary compatibility issue.  It should
    be removed under 5-CURRENT.

Reviewed by:	itojun
Obtained from:	KAME
MFC after:	3 weeks
2001-06-11 12:39:29 +00:00
des
cd8d720367 Add a -W flag that tells netstat not to truncate addresses even if they are
too long for the column they're printed in.

Move variable definitions out of netstat.h and into main.c.

Clean up some warnings.
2001-03-15 20:46:04 +00:00
brian
dd004da290 MAXHOSTNAMELEN includes space for a NUL.
Don't roll our own version of trimdomain(), use the one in libutil.

Not objected to by: freebsd-audit
2001-03-14 20:51:26 +00:00
ru
e7537660da Count and show incoming UDP datagrams with no checksum. 2001-03-13 13:26:06 +00:00
itojun
77ac5d68c9 sync with latest kame netstat. basically, more statistics 2000-07-04 16:26:46 +00:00
shin
b8e88750ca -permit protocol specific statistics at iflag,
only when either of sflag and "-f inet6" is specified.
-fix the indentation of default output

Specified by: Stephen McKay <syssgm@detir.qld.gov.au>

Reviewed and Confirmed by: Stephen McKay <syssgm@detir.qld.gov.au>
2000-01-07 05:17:09 +00:00
guido
39eef9ac50 Add new option, -L that will listen the various listen queue lengths.
Reviewed by:	Garrett Wollman <wollman@khavrinen.lcs.mit.edu>,
		Clive Lin <clive@GnatS.CirX.ORG>
1999-12-13 20:08:44 +00:00
shin
70f0bdf681 udp IPv6 support, IPv6/IPv4 tunneling support in kernel,
packet divert at kernel for IPv6/IPv4 translater daemon

This includes queue related patch submitted by jburkhol@home.com.

Submitted by: queue related patch from jburkhol@home.com
Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project
1999-12-07 17:39:16 +00:00
julian
698af92f86 Cleanup towards -Wall 1999-10-21 07:08:56 +00:00
peter
3b842d34e8 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
des
f234b406a4 Don't truncate port numbers.
Submitted by:	ru
1999-07-06 19:10:15 +00:00
des
ebe2a5b78b Fix fstat compatibility by printing the address of the tcppcb instead of
that of the regular socket pcb for TCP sockets.

PR:		bin/9963
Submitted by:	Ruslan Ermilov <ru@ucb.crimea.ua>
1999-03-10 17:25:42 +00:00
bde
0609531ab6 Fixed printf format errors. 1998-07-06 21:01:54 +00:00
imp
94f67b7ef5 o Use snprintf over sprintf.
o Use strncpy correctly.
o Use enough buffer for line.

Inspired by or Obtained from: Similar changes in OpenBSD
1998-06-09 04:13:03 +00:00
pb
03f5c91484 Make "netstat -s" display stats on fast-forwarded packets.
Obtained from: NetBSD code
1998-05-19 16:00:55 +00:00
wollman
e37570d812 mbuf, inet, and unix modules no longer read kvm. 1998-05-15 20:19:21 +00:00
wollman
fefb319840 Print out the two new fields in the ICMP stats. While we're at it, also
convert icmp_stats() to use sysctl(3) to retrieve the information
rather than kvm.  This makes it easy to also print whether ICMP address
mask responses are enabled, so do so.
1997-08-25 16:57:05 +00:00