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to in_control() is sometimes a pointer, and sometimes an integer, so use
u_long rather than int.
Obtained from: 4.4BSD-Lite-2
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in.c: when an interface address is deleted, keep its multicast membership
. records (attached to a struct multi_kludge) for attachment to the
. next address on the same interface. Also, in_multi structures now
. gain a reference to the ifaddr so that they won't point off into
. freed memory if an interface goes away and doesn't come back before
. the last socket reference drops. This is analogous to how it is
. done for routes, and seems to make the most sense.
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(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.
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Submitted by: apg@demos.su (Paul Antonov) - patch020
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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)
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Submitted by: Paul
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- Delete redundant declarations.
- Add -Wredundant-declarations to Makefile.i386 so they don't come back.
- Delete sloppy COMMON-style declarations of uninitialized data in
header files.
- Add a few prototypes.
- Clean up warnings resulting from the above.
NB: ioconf.c will still generate a redundant-declaration warning, which
is unavoidable unless somebody volunteers to make `config' smarter.
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Reviewed by: Rodney W. Grimes
Submitted by: John Dyson and David Greenman
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