Commit Graph

48 Commits

Author SHA1 Message Date
Sam Leffler
5309f84168 deal with malloc failures
Noticed by:	Coverity Prevent analysis tool
Together with:	mdodd
2005-03-26 22:20:22 +00:00
Warner Losh
c398230b64 /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
Robert Watson
c14800e6ff Lock down parallel router_info list for tracking multicast IGMP
versions of various routers seen:

- Introduce igmp_mtx.
- Protect global variable 'router_info_head' and list fields
  in struct router_info with this mutex, as well as
  igmp_timers_are_running.
- find_rti() asserts that the caller acquires igmp_mtx.
- Annotate a failure to check the return value of
  MALLOC(..., M_NOWAIT).
2004-06-11 03:42:37 +00:00
Warner Losh
f36cfd49ad Remove advertising clause from University of California Regent's
license, per letter dated July 22, 1999 and email from Peter Wemm,
Alan Cox and Robert Watson.

Approved by: core, peter, alc, rwatson
2004-04-07 20:46:16 +00:00
Robert Watson
f19389746e Remove redundant initialization of rti; SLIST_FOREACH does that for
us.
2003-08-28 22:15:05 +00:00
Robert Watson
b8ecbcd287 Before digging into IGMP locking, do a whitespace and prototype cleanup:
prefer tabs to 8 spaces, focus on consistent indentation, prefer modern
C function prototypes.  Not all the way to style(9), but substantially
closer.
2003-08-20 17:32:17 +00:00
Robert Watson
6c4b2ad305 Move from a custom-crafted singly-linked list to the SLIST_* macros
from queue(3).

Improve vertical compactness by using a IGMP_PRINTF() macro rather
than #ifdefing IGMP_DEBUG a large number of debugging printfs.

Reviewed by:	mdodd (SLIST changes)
2003-08-20 17:09:01 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Luigi Rizzo
032dcc7680 Back out some style changes. They are not urgent,
I will put them back in after 5.0 is out.

Requested by: sam
Approved by: re
2002-11-20 19:00:54 +00:00
Luigi Rizzo
9b77fbf0a2 Fix function headers and remove 'register' variable declarations. 2002-11-17 17:04:19 +00:00
Sam Leffler
5d84645305 Replace aux mbufs with packet tags:
o instead of a list of mbufs use a list of m_tag structures a la openbsd
o for netgraph et. al. extend the stock openbsd m_tag to include a 32-bit
  ABI/module number cookie
o for openbsd compatibility define a well-known cookie MTAG_ABI_COMPAT and
  use this in defining openbsd-compatible m_tag_find and m_tag_get routines
o rewrite KAME use of aux mbufs in terms of packet tags
o eliminate the most heavily used aux mbufs by adding an additional struct
  inpcb parameter to ip_output and ip6_output to allow the IPsec code to
  locate the security policy to apply to outbound packets
o bump __FreeBSD_version so code can be conditionalized
o fixup ipfilter's call to ip_output based on __FreeBSD_version

Reviewed by:	julian, luigi (silent), -arch, -net, darren
Approved by:	julian, silence from everyone else
Obtained from:	openbsd (mostly)
MFC after:	1 month
2002-10-16 01:54:46 +00:00
Robert Watson
0ec4b12334 Introduce support for Mandatory Access Control and extensible
kernel access control.

When generating an IGMP message, invoke a MAC entry point to permit
the MAC framework to label its mbuf appropriately for the target
interface.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-07-31 16:46:56 +00:00
Dima Dorfman
11612afabe s/demon/daemon/ 2002-05-12 00:22:38 +00:00
Alfred Perlstein
4d77a549fe Remove __P. 2002-03-19 21:25:46 +00:00
Julian Elischer
2e4f1ee934 One caller of rip_input failed to be converted in the last commit. 2001-09-03 20:40:35 +00:00
Julian Elischer
f0ffb944d2 Patches from Keiichi SHIMA <keiichi@iij.ad.jp>
to make ip use the standard protosw structure again.

Obtained from: Well, KAME I guess.
2001-09-03 20:03:55 +00:00
Ruslan Ermilov
c73d99b567 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
Jonathan Lemon
72a52a35b4 Add #include <machine/in_cksum.h>, in order to pick up the checksum
inline functions and prototypes.
2000-05-06 18:19:58 +00:00
Yoshinobu Inoue
6a800098cc IPSEC support in the kernel.
pr_input() routines prototype is also changed to support IPSEC and IPV6
chained protocol headers.

Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project
1999-12-22 19:13:38 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Bill Fenner
9bb02c7b92 Rename igmp's MALLOC; it doesn't have anything to do with multicast routing. 1999-01-18 01:56:31 +00:00
Matthew Dillon
4462d1a56f PR: kern/8990
If timer calculation results in degenerate value (0), force it to 1
    to avoid divide-by-zero panic later on in calls to IGMP_RANDOM_DELAY().
    I considered simply adding 1 to the timer calculation, but was unsure
    if the calculation was part of the IGMP standard or not so did not want
    to mess with it for all cases.
1998-12-12 21:45:49 +00:00
Poul-Henning Kamp
a1c995b626 Last major round (Unless Bruce thinks of somthing :-) of malloc changes.
Distribute all but the most fundamental malloc types.  This time I also
remembered the trick to making things static:  Put "static" in front of
them.

A couple of finer points by:	bde
1997-10-12 20:26:33 +00:00
Poul-Henning Kamp
55166637cd Distribute and statizice a lot of the malloc M_* types.
Substantial input from:	bde
1997-10-11 18:31:40 +00:00
Bruce Evans
514ede0953 Fixed gratuitous ANSIisms. 1997-09-16 11:44:05 +00:00
Bruce Evans
4d1d4912ae Added used #include - don't depend on <sys/mbuf.h> including
<sys/malloc.h> (unless we only use the bogusly shared M*WAIT flags).
1997-09-02 01:19:47 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Gary Palmer
c23670e294 Clean up -Wunused warnings.
Reviewed by:		bde
1996-06-12 05:11:41 +00:00
Garrett Wollman
2eba88186e Always call ip_output() with a valid route pointer. For igmp, also get the
multicast option structure off the stack rather than malloc.
1996-04-18 15:41:11 +00:00
Bill Fenner
e62b8c4939 Make rip_input() take the header length
Move ipip_input() and rsvp_input() prototypes to ip_var.h
Remove unused prototype for rip_ip_input() from ip_var.h
Remove unused variable *opts from rip_output()
1996-03-26 19:16:46 +00:00
Bill Fenner
49fa849bc8 IGMPv2 routines rewritten, to be more compact and to fully comply
with the IGMPv2 Internet Draft (including Router Alert IP option)
1996-03-14 16:59:20 +00:00
Poul-Henning Kamp
f6d24a780b Staticize. 1995-12-09 20:43:53 +00:00
Bruce Evans
ce7609a49c Completed function declarations and/or added prototypes. 1995-12-02 19:38:06 +00:00
Poul-Henning Kamp
0312fbe97d New style sysctl & staticize alot of stuff. 1995-11-14 20:34:56 +00:00
Garrett Wollman
1c5de19afb Kernel side of 3.5 multicast routing code, based on work by Bill Fenner
and other work done here.  The LKM support is probably broken, but it
still compiles and will be fixed later.
1995-06-13 17:51:16 +00:00
Rodney W. Grimes
9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
David Greenman
765b90447e These diffs modify the behaviour of multicast clients to conform with the
IGMPv2 spec.  This fixes the following bugs:

o ntohs() on a char provides silly results
o timer needs to be scaled to units of PR_FASTHZ; this was being done
  inconsistenly so now it gets done when it is initialized.

Reviewed by:	Garrett Wollman
Submitted by:	Bill Fenner <fenner@parc.xerox.com>
1995-05-16 01:28:29 +00:00
Paul Traina
f5fea3ddc9 Cleanup loopback interface support.
Reviewed by:	wollman
1995-04-26 18:10:58 +00:00
Bruce Evans
b5e8ce9f12 Add and move declarations to fix all of the warnings from `gcc -Wimplicit'
(except in netccitt, netiso and netns) and most of the warnings from
`gcc -Wnested-externs'.  Fix all the bugs found.  There were no serious
ones.
1995-03-16 18:17:34 +00:00
Garrett Wollman
f2ea20e676 Add lots of useful MIB variables and a few not-so-useful ones for
completeness.
1995-02-16 00:27:47 +00:00
Paul Traina
6c4b8d672e Detect old-style multicast routers and interoperate properly 1994-10-31 06:36:47 +00:00
Garrett Wollman
5e9ae478ac Shuffle some functions and variables around to make it possible for
multicast routing to be implemented as an LKM.  (There's still a bit of
work to do in this area.)
1994-09-14 03:10:15 +00:00
Garrett Wollman
f0068c4a70 Initial get-the-easy-case-working upgrade of the multicast code
to something more recent than the ancient 1.2 release contained in
4.4.  This code has the following advantages as compared to
previous versions (culled from the README file for the SunOS release):

- True multicast delivery
- Configurable rate-limiting of forwarded multicast traffic on each
  physical interface or tunnel, using a token-bucket limiter.
- Simplistic classification of packets for prioritized dropping.
- Administrative scoping of multicast address ranges.
- Faster detection of hosts leaving groups.
- Support for multicast traceroute (code not yet available).
- Support for RSVP, the Resource Reservation Protocol.

What still needs to be done:

- The multicast forwarder needs testing.
- The multicast routing daemon needs to be ported.
- Network interface drivers need to have the `#ifdef MULTICAST' goop ripped
  out of them.
- The IGMP code should probably be bogon-tested.

Some notes about the porting process:

In some cases, the Berkeley people decided to incorporate functionality from
later releases of the multicast code, but then had to do things differently.
As a result, if you look at Deering's patches, and then look at
our code, it is not always obvious whether the patch even applies.  Let
the reader beware.

I ran ip_mroute.c through several passes of `unifdef' to get rid of
useless grot, and to permanently enable the RSVP support, which we will
include as standard.

Ported by: 	Garrett Wollman
Submitted by:	Steve Deering and Ajit Thyagarajan (among others)
1994-09-06 22:42:31 +00:00
David Greenman
3c4dd3568f Added $Id$ 1994-08-02 07:55:43 +00:00
Rodney W. Grimes
26f9a76710 The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.
Reviewed by:	Rodney W. Grimes
Submitted by:	John Dyson and David Greenman
1994-05-25 09:21:21 +00:00
Rodney W. Grimes
df8bae1de4 BSD 4.4 Lite Kernel Sources 1994-05-24 10:09:53 +00:00