("no domain for AF 0") on if_detach.
- SIOCAIFADDR, SIOCSIFADDR: free an address on error.
- SIOCSIFNETMASK, SIOCSIFDSTADDR: reject operations for an interface which
has no AF_INET addresses.
partly from OpenBSD and FreeBSD.
reviewed by Christos Zoulas on tech-net@.
the interface route and various internal state. Also, it should use an ifreq,
not an if_aliasreq. Addresses PR 9604. (Nothing in our source tree uses
SIOCSIFNETMASK, though. Perhaps it should be deprecated.)
in_ifaddrhead. Recent changes in struct names caused a namespace
collision in fast-ipsec, which are most cleanly fixed by using
"in_ifaddrhead" as the listhead name.
close sockets on address changes, which was deemed to be a bad idea and was
summarily removed, so there is no point in wasting effort on maintaining it
any more.
manner as the ifaddr hash table. By doing this, the mkludge code can go
away. At the same time, keep track of what pcbs are using what ifaddr and
when an address is deleted from an interface, notify/abort all sockets
that have that address as a source. Switch IGMP and multicasts to use pools
for allocation. Fix a number of potential problems in the igmp code where
allocation failures could cause a trap/panic.
provide a better support for multiple address with the same prefix better.
(like 10.0.0.1/8 and 10.0.0.2/8 on the same interface)
continuation of PR 13311.
remove irrelevant #if 0'ed segment for PR 10427.
each in_ifaddr and delete it when an address is purged.
- Don't simply try to delete a multicast address record listed in the
ia_multiaddrs. It results a dangling pointer. Let who holds a
reference to it to delete it.
- when all the interface address is removed from an interface, and there's
multicast groups still left joined, keep it in kludge table.
- when an interface address is added again, recover multicast groups from
kludge table.
this will avoid problem with dangling in_ifaddr on pcmcia card removal,
due to the link from multicast group info (in_multi).
the code is basically from sys/netinet6/in6.c (jinmei@kame).
pointed out by: Shiva Shenoy <shiva_s@yahoo.com>
multiple addresses from same prefix, onto single interface. PR 10427.
more info:
- 4.4BSD did not check return code from in_ifinit() at all.
4.4BSD does not support multiple address from same prefix.
- past KAME change passed in{,6}_ifinit() to upwards, toward ifconfig(8).
the behavior is filed as PR 10427.
- the commit inhibits EEXIST from rtinit(), hence partially recovers old
4.4BSD behavior.
- the right thing to happen is to properly support multiple address assignment
from the same prefix. KAME tree has more extensive change, however, it needs
much more time to get stabilized (rtentry refcnt change can cause serious
issue, we really need to bake it before bring it to netbsd)
ad