Commit Graph

13 Commits

Author SHA1 Message Date
Kevin Lo
a5752d55e0 Fix socket calls on error post-r243965.
Submitted by:	Garrett Cooper
2012-12-21 15:54:13 +00:00
John Baldwin
0b6d7bb4e8 Don't die if either of INET or INET6 aren't in the running kernel.
Instead, report "protocol not supported" errors at runtime if a user
attempts to use a protocol that the kernel doesn't support.

Reviewed by:	bz
MFC after:	1 week
2011-06-24 17:54:45 +00:00
Bruce M Simpson
7369700e92 Merge IPv6-capable mtest(8) from MLDv2 branch. 2009-04-29 09:50:04 +00:00
Bruce M Simpson
4ab1345938 Add full SSM stack support to mtest(8) diagnostic tool. 2009-03-04 02:09:12 +00:00
Bruce M Simpson
71498f308b Import rewrite of IPv4 socket multicast layer to support source-specific
and protocol-independent host mode multicast. The code is written to
accomodate IPv6, IGMPv3 and MLDv2 with only a little additional work.

This change only pertains to FreeBSD's use as a multicast end-station and
does not concern multicast routing; for an IGMPv3/MLDv2 router
implementation, consider the XORP project.

The work is based on Wilbert de Graaf's IGMPv3 code drop for FreeBSD 4.6,
which is available at: http://www.kloosterhof.com/wilbert/igmpv3.html

Summary
 * IPv4 multicast socket processing is now moved out of ip_output.c
   into a new module, in_mcast.c.
 * The in_mcast.c module implements the IPv4 legacy any-source API in
   terms of the protocol-independent source-specific API.
 * Source filters are lazy allocated as the common case does not use them.
   They are part of per inpcb state and are covered by the inpcb lock.
 * struct ip_mreqn is now supported to allow applications to specify
   multicast joins by interface index in the legacy IPv4 any-source API.
 * In UDP, an incoming multicast datagram only requires that the source
   port matches the 4-tuple if the socket was already bound by source port.
   An unbound socket SHOULD be able to receive multicasts sent from an
   ephemeral source port.
 * The UDP socket multicast filter mode defaults to exclusive, that is,
   sources present in the per-socket list will be blocked from delivery.
 * The RFC 3678 userland functions have been added to libc: setsourcefilter,
   getsourcefilter, setipv4sourcefilter, getipv4sourcefilter.
 * Definitions for IGMPv3 are merged but not yet used.
 * struct sockaddr_storage is now referenced from <netinet/in.h>. It
   is therefore defined there if not already declared in the same way
   as for the C99 types.
 * The RFC 1724 hack (specify 0.0.0.0/8 addresses to IP_MULTICAST_IF
   which are then interpreted as interface indexes) is now deprecated.
 * A patch for the Rhyolite.com routed in the FreeBSD base system
   is available in the -net archives. This only affects individuals
   running RIPv1 or RIPv2 via point-to-point and/or unnumbered interfaces.
 * Make IPv6 detach path similar to IPv4's in code flow; functionally same.
 * Bump __FreeBSD_version to 700048; see UPDATING.

This work was financially supported by another FreeBSD committer.

Obtained from:  p4://bms_netdev
Submitted by:   Wilbert de Graaf (original work)
Reviewed by:    rwatson (locking), silence from fenner,
		net@ (but with encouragement)
2007-06-12 16:24:56 +00:00
Bruce M Simpson
a93c238264 Merge a slightly cleaner and SSM capable mtest(8).
Submitted by:	Wilbert De Graaf
MFC after:	1 month
2007-03-08 18:56:37 +00:00
Kevin Lo
d069140339 Use sizeof() for calculating the buffer size instead of hard-coded values. 2007-03-06 09:32:41 +00:00
Philippe Charnier
54ede02d10 add FBSDID 2003-07-06 12:44:11 +00:00
Dima Dorfman
2694efd413 Include missing header files which define functions for which gcc has
builtints (e.g., exit, strcmp).
2001-06-24 20:25:23 +00:00
Julian Elischer
4a71a2e71b Use AF_LINK rather than AF_UNSPEC to set an ethernet multicast address.
This is obviously  not a terribly used function as it's apparently been
broken forever.
It IS possible that this fix is wrong and that the KERNEL is wrong
(in which case you should fix if_ethersubr.c) either way it certainly has more hope of
working now than before. I'd take it to 2.2 except that obviously no-one cares :-)
1998-05-28 07:31:30 +00:00
Philippe Charnier
a89409a2eb Use err(3). -Wall cleaning. 1997-10-01 06:27:34 +00:00
Bill Fenner
cf20f87153 Make mtest build. Write a makefile and a man page. 1996-12-15 21:57:32 +00:00
Bill Fenner
fc3cc3f5cf A multicast testing program, allowing you to join and leave both
IP and ethernet multicast groups.

Obtained from:	Multicast release 3.5
1996-12-15 21:30:02 +00:00