Commit Graph

73 Commits

Author SHA1 Message Date
Michael Tuexen
592bbe54d9 The variable names in the description of the port number usage is
inconsistent. This patch fixes that and improves the precision of
the description.
Thanks to Tom Marcoen for reporting the issue and providing an
initial patch, on which this change is based.

PR:			237723
Reviewed by:		bcr@
MFC after:		1 week
Differential Revision:	https://reviews.freebsd.org/D20708
2019-06-20 12:38:41 +00:00
Mariusz Zaborski
752d135e0d libcasper: ange the name of limits in cap_dns so the intentions are obvious.
Reported by:	pjd
MFC after:	3 weeks
2018-11-12 15:52:45 +00:00
Michael Tuexen
51eff8efd9 When using SCTP for sending probe packets, use INIT chunks for payloads
larger than or equal to 32 bytes. For smaller probe packets, keep using
SHUTDOWN-ACK chunks, possibly bundled with a PAD chunk.
Packets with INIT chunks more likely pass through firewalls. Therefore,
use them when possible.

MFC after:	1 week
2018-01-27 19:23:42 +00:00
Mariusz Zaborski
2560d18180 We use a few different ifdef's names to check if we are using Casper or not,
let's standardize this. Now we are always use WITH_CASPER name.

Discussed with:	emaste@
MFC after:	1 month
2017-09-21 14:41:41 +00:00
Patrick Kelsey
2f8c6c0a58 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
Michal Meloun
3c63fe7aa2 Unbreak traceroute on system built without CAPSICUM 2017-03-16 13:01:23 +00:00
Mariusz Zaborski
4529332709 Cache NLS data for strerror(3). 2017-03-09 06:41:00 +00:00
Mariusz Zaborski
7b13366373 Capsicumize traceroute.
PR:		 193973
Submitted by:	 Mikhail <mp39590@gmail.com>
Reviewed by:	 pjd, bapt, emaste, AllanJude
Differential Revision:	https://reviews.freebsd.org/D9303
2017-02-20 23:48:50 +00:00
Michael Tuexen
27edc3a655 The code starts with base + 1 as the first port. Fix to documentation
to match that.

MFC after: 3 days
2015-05-31 12:18:30 +00:00
Michael Tuexen
0239602b83 A TCP checksum of 0 is completely valid. Mapping 0 to 0xffff only
applies to UDP and UDP-Lite.

MFC after: 3 days
2015-05-31 12:11:05 +00:00
Michael Tuexen
3628ed585b Don't send illegal packets when using UDP-Lite.
MFC after: 3 days
2015-05-31 12:03:38 +00:00
Michael Tuexen
4b5a89f438 Use an empty string for field descriptions of unknown protocols.
MFC after: 3 days
2015-05-31 10:51:36 +00:00
Michael Tuexen
027cfc25a9 Don't send malformed SCTP probe packets.
MFC after: 3 days
2015-05-31 09:12:46 +00:00
Michael Tuexen
f826bfc33f When the packet verification fails in verbose mode, print the correct
number of words in host byte order. Also remove a stray 'x'.

MFC after: 3 days
2015-05-31 08:10:35 +00:00
Michael Tuexen
a6167a2523 There is no payload anymore. So compute the minimum packet length
correctly and use 40 as the default (if the minumum allows it), as
specified in the man page.

MFC after: 3 days
2015-05-30 20:39:19 +00:00
Michael Tuexen
3105514edd Require the embedded packet to contain 8 bytes after the IP header instead
of only 4. This is guaranteed by RFC 792 and the verification of GRE, ICMP
and TCP packets use 8 bytes.

MFC after: 3 days
2015-05-30 19:52:28 +00:00
Michael Tuexen
8dcbd3fed4 Remove trailing whitespaces. 2015-05-30 19:48:40 +00:00
Joel Dahl
49074c51cc mdocify and update the traceroute(8) manual page.
Reviewed by:	brueffer
No objection:	ru, uqs
2012-06-27 07:41:21 +00:00
Michael Tuexen
7a7a6331a9 Fix a bug in the TCP tracerouting which resulted in not accepting any
incoming packets. So all packets seemed to be lost.

MFC after: 1 week
2012-04-26 13:45:17 +00:00
Dimitry Andric
4b9414ab92 For some reason, contrib/traceroute/traceroute.c ensures MAXHOSTNAMELEN
is defined, but then proceeds to use a hardcoded maximum hostname length
of 64 anyway.  Fix this by checking against MAXHOSTNAMELEN instead.

PR:		bin/157732
MFC after:	3 days
2011-06-26 19:03:33 +00:00
Simon L. B. Nielsen
04e7229db5 Check return code of setuid() in traceroute.
While it will not fail in normal circumstances, better safe than sorry.

Reported by:	LLVM's clang static analyzer
MFC after:	3 days
2011-04-23 13:07:35 +00:00
Ulrich Spörlein
f02cd756de traceroute(8): make WARNS=3 clean
Also fixes an operator precedence bug for TCP tracerouting
2010-12-04 14:19:27 +00:00
Ulrich Spörlein
d8e58d07b3 Remove unused traceroute(8) contrib code from head
It still lives on under vendor/traceroute.
2010-11-27 09:26:46 +00:00
Ulrich Spörlein
aa8f5ab65e Remove clause 3 and 4 from TNF licenses.
Obtained from:	NetBSD
Approved by:	core
2010-11-26 20:34:43 +00:00
Ed Schouten
6f3e5db886 Remove unneeded struct timezone passed to gettimeofday(). 2010-08-08 08:22:53 +00:00
Hajimu UMEMOTO
d429d7201e - Add AS lookup functionality to traceroute6(8) as well.
- Support for IPv6 transport for AS lookup.
- Introduce $RA_SERVER to set whois server.
- Support for 4 byte ASN.
- ANSIfy function declaration in as.c.

Tested by:	IHANet folks.
2009-08-23 17:00:16 +00:00
Rui Paulo
8ea0d8cff1 Add AS lookup functionality. On each hop we query a whois server to
find the corresponding AS for that IP (-a switch).
We can also choose a different whois server with the -A switch. The
default is whois.radb.net.

Obtained from:	       NetBSD
Reviewed by:	       bms, njl (mentor)
Approved by:	       njl (mentor)
2008-02-20 23:29:53 +00:00
George V. Neville-Neil
8409aedfa6 Commit IPv6 support for FAST_IPSEC to the tree.
This commit includes all remaining changes for the time being including
user space updates.

Submitted by:    bz
Approved by:    re
2007-07-01 12:08:08 +00:00
Maxim Konovalov
eea319c4b7 o I failed to find a suitable explanation why traceroute(8) and
traceroute6(8) force -w flag (wait time) to be > 1 sec.  Make it
possible to use 1 sec wait time.

PR:		bin/110933
Submitted by:	Dmitry Marakasov
Reviewed by:	freebsd-net (silence)
MFC after:	1 month
2007-04-30 19:08:13 +00:00
David Malone
eac17f2c6f Make it so that the synopsis and usage message almost agree.
MFC after:	3 weeks
2006-10-15 17:44:49 +00:00
David Malone
2f87bd055e Add a -D option to traceroute that prints the differences between
the probe packet we sent and the packet quoted by the ICMP response.
Can be useful for spotting hops that change the packet in-flight
or have problems generating correct ICMP responses.

MFC after:	3 weeks
2006-10-15 17:34:51 +00:00
David Malone
e4ad3d8dd8 Make traceroute decode all the ICMP unreachable messages defined
in http://www.iana.org/assignments/icmp-parameters. Thankfully
IANA's list aggrees with <netinet/ip_icmp.h>.

I've tried to do this in a way which is mostly consistent with
tcptraceroute and Debian's version of traceroute. However, sometimes
a letter is used twice by these versions, so I've gone with:

                                LBL     tcptr   Debian          (chosen)
ICMP_UNREACH_NET                !N      !N      !N              !N
ICMP_UNREACH_HOST               !H      !H      !H              !H
ICMP_UNREACH_PROTOCOL           !P      !P      !P              !P
ICMP_UNREACH_PORT               !       !p      !               !
ICMP_UNREACH_NEEDFRAG           !F-%d   !F      !F-<%d>         !F-<%d>
ICMP_UNREACH_SRCFAIL            !S      !S      !S              !S
ICMP_UNREACH_NET_UNKNOWN        !<%d>   !U      !<%d>           !U
ICMP_UNREACH_HOST_UNKNOWN       !<%d>   !U      !<%d>           !W
ICMP_UNREACH_ISOLATED           !<%d>   !I      !I              !I
ICMP_UNREACH_NET_PROHIB         !<%d>   !A      !A              !A
ICMP_UNREACH_HOST_PROHIB        !<%d>   !C      !C              !Z
ICMP_UNREACH_TOSNET             !<%d>   !T      !T              !Q
ICMP_UNREACH_TOSHOST            !<%d>   !T      !T              !T
ICMP_UNREACH_FILTER_PROHIB      !X      !A      !A              !X
ICMP_UNREACH_HOST_PRECEDENCE    !V      !<%d>   !V              !V
ICMP_UNREACH_PRECEDENCE_CUTOFF  !C      !<%d>   !C              !C

Graham Wilson is planning to use the same codes in Debian's version.

MFC after:	3 weeks
2006-06-13 14:59:07 +00:00
Maxim Konovalov
75c0641ed4 o It's lilac-dmc.Berkeley.EDU, not lbl-csam.arpa.
Obtained from:	NetBSD
2006-06-07 21:37:42 +00:00
Crist J. Clark
a719d3b931 Option for setting a fixed destination port. This is useful for tracing
to a host behind a firewall where only specific services are allowed.
For example, to trace the hops to an HTTP server behind a firewall,

  $ traceroute -e -P tcp -p 80 www-firewalled.example.com

MFC after:	1 week
2006-05-11 06:30:18 +00:00
Pav Lucistnik
811c0f2ed0 - Update pretty print of multipath routes to better handle timeout of first
probe

  Before:
   5  *
    freebsd (195.250.137.134)  19.086 ms  24.694 ms

  After:
   5  * freebsd (195.250.137.134)  19.086 ms  24.694 ms

Fixes:		bin/90098
Reported by:	Jeremy Chadwick <freebsd@jdc.parodius.com>
Approved by:	andre
MFC after:	1 day
2006-01-10 16:48:52 +00:00
Andre Oppermann
9e24bd90fe Pretty print multipath routes.
Before (backslash in c syntax meaning):
 6  p16-2-0-0.r21.sttlwa01.us.bb.verio.net (129.250.2.180)  71.027 ms \
p16-1-1-3.r20.sttlwa01.us.bb.verio.net (129.250.2.6)  66.730 ms  66.535 ms
 7  xe-0-2-0.r20.sttlwa01.us.bb.verio.net (129.250.4.16)  71.092 ms \
xe-3-1.r00.sttlwa01.us.bb.verio.net (129.250.2.205)  66.598 ms \
xe-0-2-0.r20.sttlwa01.us.bb.verio.net (129.250.4.16)  71.024 ms

After:
 6  p16-2-0-0.r21.sttlwa01.us.bb.verio.net (129.250.2.180)  71.027 ms
    p16-1-1-3.r20.sttlwa01.us.bb.verio.net (129.250.2.6)  66.730 ms  66.535 ms
 7  xe-0-2-0.r20.sttlwa01.us.bb.verio.net (129.250.4.16)  71.092 ms
    xe-3-1.r00.sttlwa01.us.bb.verio.net (129.250.2.205)  66.598 ms
    xe-0-2-0.r20.sttlwa01.us.bb.verio.net (129.250.4.16)  71.024 ms

Submitted by:	Richard A Steenbergen <ras at e-gerbil.net>
MFC after:	3 days
2005-08-26 18:08:24 +00:00
Thomas Quinot
be9ede4a45 Fix minor discrepancy between documentation and implementation: the
destination port is incremented for each packet sent to the same hop.

MFC after:	1 week
2005-04-12 15:16:32 +00:00
Maxime Henrion
b61cbc55fe Remove an empty default: case to please GCC 3.4.2. 2004-07-28 14:21:25 +00:00
Pierre Beyssac
bc5cfff933 Check -s option source address for validity.
PR:		bin/29026
MFC after:	1 week
2004-04-17 18:44:23 +00:00
Colin Percival
1939168416 Fix traceroute where [number of hops] * [number of packets per hop] > 255.
PR:		misc/61336
Submitted by:	Mike Hibler <mike@cs.utah.edu>
Approved by:	rwatson (mentor)
2004-01-23 06:55:15 +00:00
Bill Fenner
83d000df26 Fix misspelling.
PR:		docs/44930
Submitted by:	Michael McGoldrick <mmcgoldrick@linuxdriven.net>
2002-12-13 22:26:10 +00:00
Bill Fenner
d3125a3e10 Routing socket messages are padded to sizeof(long), not just
sizeof(u_int32_t).
2002-07-30 04:49:13 +00:00
Bill Fenner
edfe5cffff Calculate checksums correctly when LSRR is in effect by passing the
IP header and protocol header seperately.
Also calculate TCP checksums.

Submitted by:	orion
2002-07-28 02:34:39 +00:00
Bill Fenner
0952bc9f4b Merge 1.4a12 2002-07-28 02:26:31 +00:00
Bill Fenner
35d3ea799b This commit was generated by cvs2svn to compensate for changes in r100784,
which included commits to RCS files with non-trunk default branches.
2002-07-28 02:24:33 +00:00
Bill Fenner
5f3a73ba3a Virgin import of LBL traceroute v1.4a12 2002-07-28 02:24:33 +00:00
Daniel C. Sobral
8f32fe91de s/ifdef/ifndef/.
Fenner got this inverted through a misunderstanding between us.
2002-07-23 12:25:34 +00:00
Bill Fenner
c898fd637d Add '+FreeBSD' to the version string, to reflect that this program
bears little relationship to the one from LBL with the same
 name and version number.
2002-07-23 00:56:52 +00:00
Bill Fenner
290006640b Add an ICMP protocol handler, partly based on LBL's traceroute 1.4 .
Submitted by:	dcs
2002-07-22 23:01:11 +00:00
Bill Fenner
dbee325068 Actually use gen_prep() and gen_check(), instead of udp_prep() and
udp_check(), for unknown protocols.
2002-07-22 22:07:23 +00:00