Commit Graph

115 Commits

Author SHA1 Message Date
Pedro F. Giffuni
8a16b7a18f General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00
Warner Losh
fbbd9655e5 Renumber copyright clause 4
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00
Xin LI
f193c8ce0d Use strlcpy and snprintf in netstat(1).
Expand inet6name() line buffer to NI_MAXHOST and use strlcpy/snprintf
in various places.

Reported by:	Anton Yuzhaninov <citrin citrin ru>
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D8916
2017-01-05 09:23:54 +00:00
Hajimu UMEMOTO
b1a302a533 Avoid core dump when output style is html. 2015-11-20 12:15:58 +00:00
Hajimu UMEMOTO
d48d68fa9e JSON doesn't permit a hexadecimal notation of an integer. 2015-11-17 12:09:57 +00:00
Hajimu UMEMOTO
b670e89ac2 Do not truncate addresses when printing in encoded format. 2015-11-06 14:50:23 +00:00
Hajimu UMEMOTO
fb3ab86f32 - Fix alignment for padding link address.
- Trim whitespace of link address.
2015-11-06 14:35:22 +00:00
Enji Cooper
f9b3502ce1 Fix compiling netstat after r290367 by substituting sys/types.h for
sys/param.h, as sys/param.h defines the MAX(..) macro

Reported by: O. Hartmann <ohartman@zedat.fu-berlin.de>
Pointyhat to: ume
2015-11-06 08:43:12 +00:00
Hajimu UMEMOTO
cca052c621 Give enough room for addresses when -W option is specified. 2015-11-05 11:06:46 +00:00
Hajimu UMEMOTO
011ae9c907 Fix alignment of `Drop' header. 2015-11-05 11:04:43 +00:00
Hajimu UMEMOTO
3e687cd867 Fix alignment of AF_LINK address. 2015-11-04 19:05:04 +00:00
Hajimu UMEMOTO
86a598950f Simplify r290367 using asterisk for a field width
and precision.
2015-11-04 16:59:12 +00:00
Hajimu UMEMOTO
38f16ca658 Unify AF_INET case and AF_INET6 case. 2015-11-04 15:05:15 +00:00
Hajimu UMEMOTO
bd4fcecaca Change to not truncate an interface name when -W option
is specified.
2015-11-04 14:57:46 +00:00
Hajimu UMEMOTO
8e2d18a7c5 Restore an interface name field to left align. 2015-11-04 13:59:13 +00:00
Mark Johnston
9eddb899d9 Use a common subroutine to fetch and zero protocol stats instead of
duplicating roughly similar code for each protocol.

MFC after:	2 weeks
2015-09-11 04:37:01 +00:00
Hiroki Sato
a261e36179 Divide statistics in the number of packets with 1000 instead of 1024
in human-readable form.

PR:	183598
2015-09-02 18:42:35 +00:00
Hiroki Sato
10d5269ff9 - Add -W flag support for network column in intpr() (-i flag) and
routepr() (-r flag).  It is too narrow to show an IPv6 prefix
  in most cases.

- Accept "local" as a synonym of "unix" in protocol family name.

- Show a prefix length in CIDR notation when name resolution failed in
  netname().

- Make routename() and netname() AF-independent and remove
  unnecessary typecasting from struct sockaddr.

- Use getnameinfo(3) to format L2 addr in intpr().

- Fix a bug which showed "Address" when -A flag is specfied in pr_rthdr().

- Replace cryptic GETSA() macro with SA_SIZE().

- Fix declarations shadowing local variables with the same names.

- Add more static, remove unused header files and variables.

MFC after:	1 week
2015-09-01 08:42:04 +00:00
Gleb Smirnoff
e42e1fcc64 Printing interface names:
o Restore historical behaviour of appending '*' if interface is down,
  and we have enough space to print it (usually we don't). [1]
o Do not truncate interface names when printing in encoded format.
o Report interface flags into encoded format.

PR:		199873 [1]
Sponsored by:	Nginx, Inc.
2015-05-06 16:43:44 +00:00
Gleb Smirnoff
56d5e0967c Stop including if_var.h from userland.
Sponsored by:	Nginx, Inc.
2015-04-06 09:42:23 +00:00
Marcel Moolenaar
315ca438f3 Fix typo in dropped-packets attribute (missing s).
Pointed-out by: allanjude (excellent catch!)
2015-03-04 02:56:32 +00:00
Marcel Moolenaar
65f2833127 Fix "netstat -hdw 1" output.
Reported by: np@
2015-02-25 17:06:27 +00:00
Marcel Moolenaar
ade9ccfe21 Convert netstat to use libxo.
Obtained from:  Phil Shafer <phil@juniper.net>
Ported to -current by: alfred@ (mostly), Kim Shrier
Formatting: marcel@
Sponsored by:   Juniper Networks, Inc.
2015-02-21 23:47:20 +00:00
Gleb Smirnoff
55fb7d688b Now, after r263102 we have ifi_oqdrops in if_data, restore printing of
output queue drops in netstat(1).

No driver, neither kernel fills this field in if_data, yet.

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2014-03-19 03:33:32 +00:00
Gleb Smirnoff
45c203fce2 Remove AppleTalk support.
AppleTalk was a network transport protocol for Apple Macintosh devices
in 80s and then 90s. Starting with Mac OS X in 2000 the AppleTalk was
a legacy protocol and primary networking protocol is TCP/IP. The last
Mac OS X release to support AppleTalk happened in 2009. The same year
routing equipment vendors (namely Cisco) end their support.

Thus, AppleTalk won't be supported in FreeBSD 11.0-RELEASE.
2014-03-14 06:29:43 +00:00
Gleb Smirnoff
2c284d9395 Remove IPX support.
IPX was a network transport protocol in Novell's NetWare network operating
system from late 80s and then 90s. The NetWare itself switched to TCP/IP
as default transport in 1998. Later, in this century the Novell Open
Enterprise Server became successor of Novell NetWare. The last release
that claimed to still support IPX was OES 2 in 2007. Routing equipment
vendors (e.g. Cisco) discontinued support for IPX in 2011.

Thus, IPX won't be supported in FreeBSD 11.0-RELEASE.
2014-03-14 02:58:48 +00:00
Gleb Smirnoff
b245f96c44 Since 32-bit if_baudrate isn't enough to describe a baud rate of a 10 Gbit
interface, in the r241616 a crutch was provided. It didn't work well, and
finally we decided that it is time to break ABI and simply make if_baudrate
a 64-bit value. Meanwhile, the entire struct if_data was reviewed.

o Remove the if_baudrate_pf crutch.

o Make all fields of struct if_data fixed machine independent size. The
  notion of data (packet counters, etc) are by no means MD. And it is a
  bug that on amd64 we've got a 64-bit counters, while on i386 32-bit,
  which at modern speeds overflow within a second.

  This also removes quite a lot of COMPAT_FREEBSD32 code.

o Give 16 bit for the ifi_datalen field. This field was provided to
  make future changes to if_data less ABI breaking. Unfortunately the
  8 bit size of it had effectively limited sizeof if_data to 256 bytes.

o Give 32 bits to ifi_mtu and ifi_metric.
o Give 64 bits to the rest of fields, since they are counters.

__FreeBSD_version bumped.

Discussed with:	emax
Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2014-03-13 03:42:24 +00:00
Gleb Smirnoff
526b18aa8b Claim copyright since I've almost rewritten this file in r256512. 2013-12-29 19:31:49 +00:00
Alexander V. Chernikov
fc47e028bb Use more fine-grained kvm(3) symbol lookup: routing code retrieves only
necessary symbols needed per subsystem. Main kvm(3) init is now delayed
as much as possbile. This finally fixes performance issues reported in
kern/167204.
Some non-working code (ng_socket.ko symbol addresses calculation) removed.
Some global variables eliminated.

PR:		kern/167204
MFC after:	4 weeks
2013-12-20 00:17:26 +00:00
Gleb Smirnoff
3e4d5cd37b Make userland tools honor WITHOUT_PF build option.
Tested by:	dt71@gmx.com
2013-10-29 17:38:13 +00:00
Gleb Smirnoff
84c1edcbad Rewrite netstat/if.c to use getifaddrs(3) and getifmaddrs(3) instead of
libkvm digging in kernel memory. This is possible since r231506 made
getifaddrs(3) to supply if_data for each ifaddr.

  The pros of this change is that now netstat(1) doesn't know about kernel
struct ifnet and struct ifaddr. And these structs are about to change
significantly in head soon. New netstat binary will work well with 10.0
and any future kernel.

  The cons is that now it isn't possible to obtain interface statistics
from a vmcore.

  Functions intpr() and sidewaysintpr() were rewritten from scratch.

  The output of netstat(1) has underwent the following changes:

1) The MTU is not printed for protocol addresses, since it has no notion.
   Dash is printed instead. If there would be a strong desire to return
   previous output, it is doable.
2) Output interface queue drops are not printed. Currently this data isn't
   available to userland via any API. We plan to drop 'struct ifqueue' from
   'struct ifnet' very soon, so old kvm(3) access to queue drops is soon
   to be broken, too. The plan is that drivers would handle their queues
   theirselves and a new field in if_data would be updated in case of drops.
3) In-kernel reference count for multicast addresses isn't printed. I doubt
   that anyone used it. Anyway, netstat(1) is sysadmin tool, not kernel
   debugger.

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2013-10-15 09:55:07 +00:00
Gleb Smirnoff
d6d3f01e0a Merge the projects/pf/head branch, that was worked on for last six months,
into head. The most significant achievements in the new code:

 o Fine grained locking, thus much better performance.
 o Fixes to many problems in pf, that were specific to FreeBSD port.

New code doesn't have that many ifdefs and much less OpenBSDisms, thus
is more attractive to our developers.

  Those interested in details, can browse through SVN log of the
projects/pf/head branch. And for reference, here is exact list of
revisions merged:

r232043, r232044, r232062, r232148, r232149, r232150, r232298, r232330,
r232332, r232340, r232386, r232390, r232391, r232605, r232655, r232656,
r232661, r232662, r232663, r232664, r232673, r232691, r233309, r233782,
r233829, r233830, r233834, r233835, r233836, r233865, r233866, r233868,
r233873, r234056, r234096, r234100, r234108, r234175, r234187, r234223,
r234271, r234272, r234282, r234307, r234309, r234382, r234384, r234456,
r234486, r234606, r234640, r234641, r234642, r234644, r234651, r235505,
r235506, r235535, r235605, r235606, r235826, r235991, r235993, r236168,
r236173, r236179, r236180, r236181, r236186, r236223, r236227, r236230,
r236252, r236254, r236298, r236299, r236300, r236301, r236397, r236398,
r236399, r236499, r236512, r236513, r236525, r236526, r236545, r236548,
r236553, r236554, r236556, r236557, r236561, r236570, r236630, r236672,
r236673, r236679, r236706, r236710, r236718, r237154, r237155, r237169,
r237314, r237363, r237364, r237368, r237369, r237376, r237440, r237442,
r237751, r237783, r237784, r237785, r237788, r237791, r238421, r238522,
r238523, r238524, r238525, r239173, r239186, r239644, r239652, r239661,
r239773, r240125, r240130, r240131, r240136, r240186, r240196, r240212.

I'd like to thank people who participated in early testing:

Tested by:	Florian Smeets <flo freebsd.org>
Tested by:	Chekaluk Vitaly <artemrts ukr.net>
Tested by:	Ben Wilber <ben desync.com>
Tested by:	Ian FREISLICH <ianf cloudseed.co.za>
2012-09-08 06:41:54 +00:00
Gleb Smirnoff
16410af7fa With pf 4.5 import the name of pfsync stats sysctl has changed, thus
'netstat -sp pfsync' got broken. Fix this.
2012-04-04 08:30:32 +00:00
Eitan Adler
b4f7ea1936 Fix warning when compiling with gcc46:
error: variable 'ifnetfound' set but not used

Approved by:	dim
MFC after:      3 days
2012-01-10 02:58:36 +00:00
Ed Schouten
b3608ae18f Replace index() and rindex() calls with strchr() and strrchr().
The index() and rindex() functions were marked LEGACY in the 2001
revision of POSIX and were subsequently removed from the 2008 revision.
The strchr() and strrchr() functions are part of the C standard.

This makes the source code a lot more consistent, as most of these C
files also call into other str*() routines. In fact, about a dozen
already perform strchr() calls.
2012-01-03 18:51:58 +00:00
Michael Tuexen
62372898d6 Truncate link addresses like it is done for any
other address type.

MFC after: 4 weeks
2011-07-12 11:47:08 +00:00
Hajimu UMEMOTO
cd05232a21 - Hide the internal scope address representation of the KAME IPv6
stack from the output of `netstat -ani'.
- The node-local multicast address in the output of `netstat -rn'
  should be handled as well.

Spotted by:	Bernd Walter <ticso__at__cicely7.cicely.de>
2011-01-20 15:22:01 +00:00
Joel Dahl
da52b4caaf Remove the advertising clause from UCB copyrighted files in usr.bin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with:	imp, rwatson
2010-12-11 08:32:16 +00:00
Ryan Stone
3c578b2a05 When netstat was run with -i/-I and -w1 to produce running counters, the idrop
field printed an absolute value rather than the delta from the last value

Approved by:	emaste (mentor)
MFC after:	1 week
2010-11-18 23:46:55 +00:00
Ed Maste
5eb2aa4543 Remove more extraneous ;s. 2010-07-15 00:04:14 +00:00
Xin LI
bf10ffe1d3 Add a new option, -q howmany, which when used in conjuction with -w,
exits netstat after _howmany_ outputs.

Requested by:	thomasa
Reviewed by:	freebsd-net (bms, old version in early 2007)
MFC after:	1 month
2010-01-11 03:00:17 +00:00
Xin LI
821df508e8 Revert most part of 200420 as requested, as more review and polish is
needed.
2009-12-13 03:14:06 +00:00
Xin LI
6f2d322192 Remove unneeded header includes from usr.bin/ except contributed code.
Tested with:	make universe
2009-12-11 23:35:38 +00:00
Bjoern A. Zeeb
aaae58c491 Unbreak user space after if_timer/if_watchdog removal in r199975.
Tested by:	glebius
2009-12-01 14:56:00 +00:00
Attilio Rao
d72dc9a7eb Add the possibility to show informations about dropped packets on the
input path when showing informations about the interfaces.

Obtained from:	Sandvine Incorporated
Reviewed by:	emaste
Sponsored by:	Sandvine Incorporated
MFC:		2 weeks
2009-11-25 15:02:32 +00:00
David E. O'Brien
65475bc8e6 style(9)
+ kread is not a boolean, so check it as such
+ fix $FreeBSD$ Ids
+ denote copyrights with /*-
+ misc whitespace changes.
2008-01-02 23:26:11 +00:00
John Baldwin
feda1a4372 Restore netstat -M functionality for most statistics on core dumps. In
general, when support was added to netstat for fetching data using sysctl,
no provision was left for fetching equivalent data from a core dump, and
in fact, netstat would _always_ fetch data from the live kernel using
sysctl even when -M was specified resulting in the user believing they
were getting data from coredumps when they actually weren't.  Some specific
changes:
- Add a global 'live' variable that is true if netstat is running against
  the live kernel and false if -M has been specified.
- Stop abusing the sysctl flag in the protocol tables to hold the protocol
  number.  Instead, the protocol is now its own field in the tables, and
  it is passed as a separate parameter to the PCB and stat routines rather
  than overloading the KVM offset parameter.
- Don't run PCB or stats functions who don't have a namelist offset if we
  are being run against a crash dump (!live).
- For the inet and unix PCB routines, we generate the same buffer from KVM
  that the sysctl usually generates complete with the header and trailer.
- Don't run bpf stats for !live (before it would just silently always run
  live).
- kread() no longer trashes memory when opening the buffer if there is an
  error on open and the passed in buffer is smaller than _POSIX2_LINE_MAX.
- The multicast routing code doesn't fallback to kvm on live kernels if
  the sysctl fails.  Keeping this made the code rather hairy, and netstat
  is already tied to the kernel ABI anyway (even when using sysctl's since
  things like xinpcb contain an inpcb) so any kernels this is run against
  that have the multicast routing stuff should have the sysctls.
- Don't try to dig around in the kernel linker in the netgraph PCB routine
  for core dumps.

Other notes:
- sctp's PCB routine only works on live kernels, it looked rather
  complicated to generate all the same stuff via KVM.  Someone can always
  add it later if desired though.
- Fix the ipsec removal bug where N_xxx for IPSEC stats weren't renumbered.
- Use sysctlbyname() everywhere rather than hardcoded mib values.

MFC after:	1 week
Approved by:	re (rwatson)
2007-07-16 17:15:55 +00:00
Bruce Evans
b6c86f4b1e Fixed some style bugs (whitespace lossage for removal of __P(()), and
lots of naming and typing errors involving `interval').
2007-02-27 05:10:36 +00:00
Bruce Evans
93547b07b9 Use a periodic itimer instead of repeated calls to alarm() in
sidewaysintpr().  This increases the accuracy of the per-interval
counts when they are interpreted as rates.  Repeated calls to alarm(n)
give an average interval that is about 2 ticks larger than n and has
a large variance.  Periodic itimers normally get the average almost
right but have similarly large variance (due to scheduling delays).

Statistics utilities should use clock_gettime() to determine the
actual interval, but it is still useful to maximize the accuracy of
the interval, especially for cases like netstat -w where counts are
displayed so the program cannot hide the inaccuracy in a rate
conversion.
2007-02-27 04:54:33 +00:00
Bruce Evans
1f575ce8f9 Don't always print a space character in show_stat(), since a space
shouldn't be printed after the last column.  This restores the
formatting to 79 columns.
2006-11-08 15:15:05 +00:00