Commit Graph

44 Commits

Author SHA1 Message Date
Pedro F. Giffuni
df57947f08 spdx: initial adoption of licensing ID tags.
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.

Initially, only tag files that use BSD 4-Clause "Original" license.

RelNotes:	yes
Differential Revision:	https://reviews.freebsd.org/D13133
2017-11-18 14:26:50 +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
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
81dacd8beb Simplify kvm symbol resolution and error handling. The symbol table
nl_symbols will eventually be organized into several modules depending
on MK_* variables.
2015-09-02 18:51:36 +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
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
Alexander V. Chernikov
68bbdd0e71 Fix "netstat -gW" behavior broken in r259638.
netstat has two options for printing multicast tables:
sysctl (the default one for live systems) and kvm-based one (for cores).
It looks like kvm-based one hasn't been working since it's been introduced
in r190012 due to absence of mfctablesize kernel symbol.
Check for all ipv4-multicast symbols being correctly resolved was introduced
in r259638 regardless of 'live' value leading to "No IPv4 MROUTING" error
message.

Reported by:	Olivier Cochard-Labbé
MFC after:	1 week
2014-04-29 16:51:28 +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
Andrey V. Elsukov
5b7cb97c2b Migrate structs arpstat, icmpstat, mrtstat, pimstat and udpstat to PCPU
counters.
2013-07-09 09:50:15 +00:00
Andrey V. Elsukov
c80211e3cf Prepare network statistics structures for migration to PCPU counters.
Use uint64_t as type for all fields of structures.

Changed structures: ahstat, arpstat, espstat, icmp6_ifstat, icmp6stat,
in6_ifstat, ip6stat, ipcompstat, ipipstat, ipsecstat, mrt6stat, mrtstat,
pfkeystat, pim6stat, pimstat, rip6stat, udpstat.

Discussed with:	arch@
2013-07-09 09:32:06 +00:00
Bruce M Simpson
86979280fc Bracket struct mfc and struct rtdetq with #ifdef _KERNEL.
Match the bracketing in netstat.
Since the cleanup of MROUTING, ports have broken because they
expect to include <netinet/ip_mroute.h> without including
<sys/queue.h>. Fix breakage at source.

The real fix, of course, is to fix the MROUTING APIs by blowing them
away and replacing them with something else...
2009-04-21 12:47:09 +00:00
Bruce M Simpson
8392059492 Fix size_t merge-o. 2009-03-19 10:23:26 +00:00
Bruce M Simpson
443fc3176d Introduce a number of changes to the MROUTING code.
This is purely a forwarding plane cleanup; no control plane
code is involved.

Summary:
 * Split IPv4 and IPv6 MROUTING support. The static compile-time
   kernel option remains the same, however, the modules may now
   be built for IPv4 and IPv6 separately as ip_mroute_mod and
   ip6_mroute_mod.
 * Clean up the IPv4 multicast forwarding code to use BSD queue
   and hash table constructs. Don't build our own timer abstractions
   when ratecheck() and timevalclear() etc will do.
 * Expose the multicast forwarding cache (MFC) and virtual interface
   table (VIF) as sysctls, to reduce netstat's dependence on libkvm
   for this information for running kernels.
   * bandwidth meters however still require libkvm.
 * Make the MFC hash table size a boot/load-time tunable ULONG,
   net.inet.ip.mfchashsize (defaults to 256).
 * Remove unused members from struct vif and struct mfc.
 * Kill RSVP support, as no current RSVP implementation uses it.
   These stubs could be moved to raw_ip.c.
 * Don't share locks or initialization between IPv4 and IPv6.
 * Don't use a static struct route_in6 in ip6_mroute.c.
   The v6 code is still using a cached struct route_in6, this is
   moved to mif6 for the time being.
 * More cleanup remains to be merged from ip_mroute.c to ip6_mroute.c.

v4 path tested using ports/net/mcast-tools.
v6 changes are mostly mechanical locking and *have not* been tested.
As these changes partially break some kernel ABIs, they will not
be MFCed. There is a lot more work to be done here.

Reviewed by:	Pavlin Radoslavov
2009-03-19 01:43:03 +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 M Simpson
848b41603f Use the names 'IPv4' and 'Forwarding Table' in program output, not
'Routing Table', to be consistent with what the code actually does and is.
2007-02-24 21:56:52 +00:00
Bruce M Simpson
4f487dfc1a Add comments about where netstat is using KVM to read things which
should really be available via sysctl for a running system.
2007-02-24 21:42:21 +00:00
Bruce M Simpson
ab8e5cbf16 Change wording of warnings when there is no ip_mroute.ko module
loaded into the system.
Change wording of comments to reflect the fact we should unconditionally
use KVM if the -M option is used to specify a core file.
Add comments to document the fact that IPv6 multicast forwarding
information display still relies on KVM for gathering information.
2007-02-21 13:41:51 +00:00
Bruce M Simpson
910e1364b6 Nits.
Submitted by:	ru
2006-09-29 16:16:41 +00:00
Bruce M Simpson
2d20d32344 Push removal of mrouted down to the rest of the tree. 2006-09-29 15:45:11 +00:00
Yaroslav Tykhiy
7b95a1ebbd 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
Yaroslav Tykhiy
778d2bddd2 Both fields of struct timeval are of a non-basic type,
so we should cast them to a type printf() knows about.
2006-07-28 11:17:17 +00:00
Philippe Charnier
6cc6f12231 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
Jeffrey Hsu
c7b9b5bb49 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
Jeffrey Hsu
0ae2b7649e * Use sysctlbyname(3) to print statistics about the MFC and
multicast VIF tables.
  This change is needed for consistency with the rest of the
  netstat/mroute.c implementation, and because in some
  cases "netstat -g" may fail to report the multicast forwarding
  information (e.g., if we run a multicast router on PicoBSD).

* Remove "DVMRP" from the head comment of file netstat/mroute.c,
  because the printed multicast-related statistics are not
  DVMRP-specific anymore.

Submitted by:	Pavlin Radoslavov <pavlin@icir.org>
2003-08-05 17:07:04 +00:00
David Malone
a01e3379df 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
Ruslan Ermilov
76840ccb9d If -s -s is specified, don't show zero multicast routing statistics. 2001-09-07 12:59:30 +00:00
Bill Fenner
1a8b27c035 Use sysctl to export multicast routing stats 2001-07-25 20:14:09 +00:00
Assar Westerlund
5e0517186d remove K&R support 2001-06-15 23:35:13 +00:00
Assar Westerlund
e9370a2e59 revert removal of warning and K&R support
Requested by: bde
2001-06-15 23:07:59 +00:00
Assar Westerlund
af7a0a2d2b remove most of the warnings 2001-06-15 01:53:05 +00:00
Assar Westerlund
65ea0024ba 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
Jun-ichiro itojun Hagino
32cd1d9601 sync with latest kame netstat. basically, more statistics 2000-07-04 16:26:46 +00:00
Yoshinobu Inoue
0fea3d5165 IPv6 multicast routing.
kernel IPv6 multicast routing support.
  pim6 dense mode daemon
  pim6 sparse mode daemon
  netstat support of IPv6 multicast routing statistics

  Merging to the current and testing with other existing multicast routers
  is done by Tatsuya Jinmei <jinmei@kame.net>, who writes and maintainances
  the base code in KAME distribution.

  Make world check and kernel build check was also successful.
2000-01-28 05:10:56 +00:00
Julian Elischer
a97a99221a Cleanup towards -Wall 1999-10-21 07:08:56 +00:00
Bill Fenner
67a451cc89 Don't use ip_mrtproto to determine whether multicast routing is in
the kernel; this was left over from the earlier protocol-dependent
 kernel multicast routing code.

Learn how to handle the malloc'd multicast routing table (instead of
 expecting it to be in mbufs)
1999-01-18 02:09:15 +00:00
Garrett Wollman
8766942543 Update to match changes in <net/if.h> and <netinet/ip_mroute.h>. 1997-01-03 20:16:31 +00:00
Garrett Wollman
628d2ac1b0 Fix up programs which expect <net/if.h> to include <sys/time.h> to instead
do it themselves.  (Some of these programs actually depended on this
beyond compiling the definition of struct ifinfo!)  Also fix up some
other #include messes while we're at it.
1996-12-10 17:11:53 +00:00
Alexander Langer
7d56c0ee6b Code cleanup: remove unused variables, use correct *printf format
specifiers (some unsigned values were printed as signed, some longs
were printed as ints), and place parentheses around assignments in
if statements.
1996-06-02 23:19:12 +00:00
David Greenman
d8d891521e Move #include of queue.h before #include of socketvar.h in preparation for
struct socket changes.
1996-03-11 13:01:12 +00:00
Peter Wemm
05ddff6e30 Merge in Lite-2 changes. 1996-01-14 23:33:13 +00:00
Garrett Wollman
ef105c25f6 Re-write `netstat -g' code to match the 3.5 data structures. 1995-06-13 19:18:40 +00:00
Garrett Wollman
19bd7f946a Tell netstat about the new multicast forwarding statistics. For the moment,
don't try to do any multicast forwarding cache printouts; it's not clear
that netstat can do anything particularly useful or meaningful.
1994-09-08 00:07:12 +00:00
Rodney W. Grimes
9b50d90275 BSD 4.4 Lite Usr.bin Sources 1994-05-27 12:33:43 +00:00