Commit Graph

161 Commits

Author SHA1 Message Date
gbe
7e5294cf64 arp(8) clarify the use of the '-a flag'
PR:		238146
Submitted by:	Andrew Stevenson <andrew at ugh dot net dot au>
Reported by:	Andrew Stevenson <andrew at ugh dot net dot au>
Reviewed by:	bcr (mentor)
Approved by:	bcr (mentor)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D25645
2020-07-13 15:06:29 +00:00
eugen
a136cbafca arp(8): avoid segfaulting due to out-of-bounds memory access
Fix obvious mistake that sometimes results in reading memory
past end of an array.

PR:		240825
MFC after:	1 week
2020-01-09 11:58:26 +00:00
brooks
a45d44647f Remove infrastructure for token-ring networks.
Reviewed by:	cem, imp, jhb, jmallett
Relnotes:	yes
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D14875
2018-03-28 23:33:26 +00:00
pfg
872b698bd4 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
bdrewery
a598c4b809 DIRDEPS_BUILD: Update dependencies.
Sponsored by:	Dell EMC Isilon
2017-10-31 00:07:04 +00:00
bdrewery
f7f6293381 DIRDEPS_BUILD: Update dependencies.
Sponsored by:	Dell EMC Isilon
2017-05-09 01:48:23 +00:00
pkelsey
f3f1c24017 Fix userland tools that don't check the format of routing socket
messages before accessing message fields that may not be present,
removing dead/duplicate/misleading code along the way.

Document the message format for each routing socket message in
route.h.

Fix a bug in usr.bin/netstat introduced in r287351 that resulted in
pointer computation with essentially random 16-bit offsets and
dereferencing of the results.

Reviewed by:	ae
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D10330
2017-04-16 19:17:10 +00:00
garga
75791bc1aa Introduce libxo support to arp(8)
Reviewed by:	wblock, gnn, allanjude, phil
Approved by:	allanjude
MFC after:	1 week
Sponsored by:	Rubicon Communications (Netgate)
Differential Revision:	https://reviews.freebsd.org/D9563
2017-04-06 22:50:28 +00:00
imp
7e6cabd06e 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
garga
f9684ecca3 Cleanup on usr.sbin/arp/arp.c
* 'blackhole' and 'reject' are mutually exclusive, replace printf() by errx()
  when both are selected.
* 'trail' option is no longer supported since first import of arp from 4.4BSD.
  XXX message was added 13 years ago in r128192. I believe it's time to remove
  it.
* Use warnx() to print some informative messages instead of printf()
* Replace strncmp() by strcmp() when validating parameters and exit when invalid
  parameter is found

Reviewed by:	allanjude, vangyzen, cem
Approved by:	allanjude
MFC after:	1 week
Sponsored by:	Rubicon Communications (Netgate)
Differential Revision:	https://reviews.freebsd.org/D9504
2017-02-09 19:58:12 +00:00
garga
d14468e49d Fix style(9)
Reviewed by:	vangyzen, allanjude, cem
Approved by:	allanjude
MFC after:	1 week
Sponsored by:	Rubicon Communications (Netgate)
Differential Revision:	https://reviews.freebsd.org/D9494
2017-02-08 20:21:29 +00:00
vangyzen
cbef52ce39 Additional cleanup of the arp(4) man page after r306652
Submitted by:	David A. Bright <david.a.bright@dell.com>
Requested by:	wblock
Reviewed by:	wblock
MFC after:	23 days
Sponsored by:	Dell EMC
Differential Revision:	https://reviews.freebsd.org/D8183
2016-10-07 22:17:25 +00:00
vangyzen
d6c85ada9d Update arp(4) to document the net.link.ether.inet.garp_rexmit_count sysctl.
Submitted by:	David A. Bright <david.a.bright@dell.com>
Requested by:	markj
Reviewed by:	markj, badger
MFC after:	4 weeks
X-MFC with:	r306577
Sponsored by:	Dell EMC
Differential Revision:	https://reviews.freebsd.org/D8136
2016-10-03 19:02:22 +00:00
melifaro
4fed811000 rtsock requests for deleting interface address lles started to return EPERM
instead of old "ignore-and-return 0" in r287789. This broke arp -da /
  ndp -cn behavior (they exit on rtsock command failure). Fix this by
  translating LLE_IFADDR to RTM_PINNED flag, passing it to userland and
  making arp/ndp ignore these entries in batched delete.

MFC after:	2 weeks
2015-09-27 04:54:29 +00:00
sjg
008d7c831f Add META_MODE support.
Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision:       D2796
Reviewed by: brooks imp
2015-06-13 19:20:56 +00:00
sjg
75a137820d dirdeps.mk now sets DEP_RELDIR 2015-06-08 23:35:17 +00:00
sjg
65145fa4c8 Merge sync of head 2015-05-27 01:19:58 +00:00
markj
97599fcfd9 arp(8): add support for printing and deleting entries of type
IFT_INFINIBAND, used in IPoIB.

PR:		151594
Submitted by:	Anthony Cornehl <accornehl@gmail.com>
Reviewed by:	hselasky
MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
2015-04-02 18:18:40 +00:00
sjg
5860f0d106 Updated dependencies 2014-05-16 14:09:51 +00:00
sjg
1a7e48acf1 Updated dependencies 2014-05-10 05:16:28 +00:00
sjg
5e568154a0 Merge head 2014-04-28 07:50:45 +00:00
gnn
d1d0c78901 Speed up the lookup of interfaces when there are a large number
of them, such in a system with a large number of VLANs.

Submitted by: Nick Rogers
MFC after: 2 weeks
2014-04-05 22:13:32 +00:00
glebius
bce78dfe17 Remove net.link.ether.inet.useloopback sysctl tunable. It was always on by
default from the very beginning. It was placed in wrong namespace
net.link.ether, originally it had been at another wrong namespace. It was
incorrectly documented at incorrect manual page arp(8). Since new-ARP commit,
the tunable have been consulted only on route addition, and ignored on route
deletion. Behaviour of a system with tunable turned off is not fully correct,
and has no advantages comparing to normal behavior.
2013-11-05 07:32:09 +00:00
sjg
7fcd33c1fa Merge head@256284 2013-10-13 02:35:19 +00:00
glebius
d232e740fa Fix coredump on 'arp -d'.
Submitted by:	az
Approved by:	re (kib)
2013-09-23 18:12:25 +00:00
sjg
62bb106222 Merge from head 2013-09-05 20:18:59 +00:00
glebius
f43ee707dd Rate limit the number of remotely triggered ARP log messages
to 1 log message per second.
2013-05-11 10:51:32 +00:00
sjg
6d37b86f2b Updated dependencies 2013-03-11 17:21:52 +00:00
sjg
0ee5295509 Updated dependencies 2013-02-16 01:23:54 +00:00
obrien
3028e3f8ab Sync with HEAD. 2013-02-08 16:10:16 +00:00
glebius
7f832c3059 Retire struct sockaddr_inarp.
Since ARP and routing are separated, "proxy only" entries
don't have any meaning, thus we don't need additional field
in sockaddr to pass SIN_PROXY flag.

New kernel is binary compatible with old tools, since sizes
of sockaddr_inarp and sockaddr_in match, and sa_family are
filled with same value.

The structure declaration is left for compatibility with
third party software, but in tree code no longer use it.

Reviewed by:	ru, andre, net@
2013-01-31 08:55:21 +00:00
sjg
778e93c51a Sync from head 2012-11-04 02:52:03 +00:00
glebius
9b72c7eaa7 Provide a sysctl switch that allows to install ARP entries
with multicast bit set. FreeBSD refuses to install such
entries since 9.0, and this broke installations running
Microsoft NLB, which are violating standards.

Tested by:	Tarasov Oleg <oleg_tarasov sg-tea.com>
2012-09-03 14:29:28 +00:00
glebius
814cd9213c Explicitly document all variables in the net.link.ether.inet MIB. 2012-09-03 14:16:16 +00:00
marcel
9dd41e3647 Sync FreeBSD's bmake branch with Juniper's internal bmake branch.
Requested by: Simon Gerraty <sjg@juniper.net>
2012-08-22 19:25:57 +00:00
joel
401c81aaa9 Minor spelling fixes. 2012-06-03 11:29:48 +00:00
joel
1a57e2d650 mdoc: add missing width argument to Bl -tag. 2012-06-03 06:57:47 +00:00
glebius
56216c3bc9 Historically arp(8) did a route lookup for the entry it is
about to add, and failed if it exist and had invalid data
link type.

Later on, in r201282, this check morphed to other code, but
message "proxy entry exists for non 802 device" still left,
and now it is printed in a case if route prefix found is
equal to current address being added. In other words, when
we are trying to add ARP entry for a network address. The
message is absolutely unrelated and disappointing in this
case.

I don't see anything bad with setting ARP entries for
network addresses. While useless in usual network,
in a /31 RFC3021 it may be necessary. This, remove this code.
2012-04-02 10:44:25 +00:00
joel
4234591b03 mdoc: terminate quoted strings.
Reviewed by:	brueffer
2012-03-26 15:18:14 +00:00
glebius
87d1499259 Do not hardcode (20*60), but use current ARP timeout value configured
in kernel.
2010-11-30 16:14:19 +00:00
glebius
7314841aaa That should belong to r216075. Pointy hat on me. 2010-11-30 16:00:59 +00:00
glebius
bdd7d886f9 Use time_uptime instead of non-monotonic time_second to drive ARP
timeouts.

Suggested by:	bde
2010-11-30 15:57:00 +00:00
mlaier
43cad37f43 Cache the last result from if_indextoname for printing. This speeds up
"arp -an" when using a lot of aliases (on a single interface).

A better fix would include a better interface for if_indextoname than
getting the whole address list from the kernel just to find the one
index->name mapping.

Reported & analyzed by:	Nick Rogers
MFC after:		3 days
2010-06-11 19:35:05 +00:00
ru
7303437c35 Show when an ARP entry expires.
MFC after:	1 week
2010-02-15 14:29:17 +00:00
qingli
ed965a92bc The proxy arp entries could not be added into the system over the
IFF_POINTOPOINT link types. The reason was due to the routing
entry returned from the kernel covering the remote end is of an
interface type that does not support ARP. This patch fixes this
problem by providing a hint to the kernel routing code, which
indicates the prefix route instead of the PPP host route should
be returned to the caller. Since a host route to the local end
point is also added into the routing table, and there could be
multiple such instantiations due to multiple PPP links can be
created with the same local end IP address, this patch also fixes
the loopback route installation failure problem observed prior to
this patch. The reference count of loopback route to local end would
be either incremented or decremented. The first instantiation would
create the entry and the last removal would delete the route entry.

MFC after:	5 days
2009-12-30 21:35:34 +00:00
jhb
ab90bdba3f Use reallocf() to simplify some logic.
MFC after:	2 weeks
2009-12-29 15:48:04 +00:00
remko
09dea8ffe1 Remove bogus char cast.
PR:		118014
Submitted by:	Gardner Bell <gbell72 at rogers dot com>
Approved by:	re (rwatson), imp (mentor, implicit)
MFC after:	immediate
2009-08-14 18:18:51 +00:00
des
771b7e0e18 Lower WARNS due to alignment issues on sparc64. 2009-06-11 10:30:30 +00:00
des
17835ecb12 As of sam's r175206, arp builds cleanly at WARNS level 6, but the Makefile
was never updated.  Also, clean up the macro that caused the warning in the
first place (no functional changes, just wrapped and reindented).
2009-06-11 07:50:36 +00:00
danger
107018980f - xref ndp(8)
PR:		docs/134053
Submitted by:	Bob Van Zant <bob@veznat.com>
MFC after:	1 week
2009-04-28 20:23:58 +00:00