1. separating L2 tables (ARP, NDP) from the L3 routing tables
2. removing as much locking dependencies among these layers as
possible to allow for some parallelism in the search operations
3. simplify the logic in the routing code,
The most notable end result is the obsolescent of the route
cloning (RTF_CLONING) concept, which translated into code reduction
in both IPv4 ARP and IPv6 NDP related modules, and size reduction in
struct rtentry{}. The change in design obsoletes the semantics of
RTF_CLONING, RTF_WASCLONE and RTF_LLINFO routing flags. The userland
applications such as "arp" and "ndp" have been modified to reflect
those changes. The output from "netstat -r" shows only the routing
entries.
Quite a few developers have contributed to this project in the
past: Glebius Smirnoff, Luigi Rizzo, Alessandro Cerri, and
Andre Oppermann. And most recently:
- Kip Macy revised the locking code completely, thus completing
the last piece of the puzzle, Kip has also been conducting
active functional testing
- Sam Leffler has helped me improving/refactoring the code, and
provided valuable reviews
- Julian Elischer setup the perforce tree for me and has helped
me maintaining that branch before the svn conversion
'get'. Since rtmsg() always gets called and returns 0 on success and -1
on failure, it's possible to exit with a suitable exit code by calling
exit(ret != 0) instead, as is done at the end of newroute().
PR: bin/112303
Submitted by: bruce@cran.org.uk
MFC after: 1 week
command would add incorrect routing entries if network numbers weren't
fully "spelled" out according to their class. For example:
# route add 128.0/16 (works)
# route add 128/16 (doesn't work)
# route add 193.0.0/24 (works)
# route add 193/24 (doesn't work)
Also, rework the way a netmask is deduced from network number if
it [netmask] is not specified.
Submitted by: Nuno Antunes <nuno.antunes@gmail.com> (mostly)
MFC after: 1 week
- Add description for EEXIST.
- Change description for ENOBUFS. Routing socket can return
this error for many different reasons, including general
memory shortage, mbuf memory shortage and rtentry zone.
PR: kern/64090 [1]
to lo(4) interfaces to have an effect, and that this is not needed
when using IP fast forwarding.
Sponsored by: eXtensible Open Router Project <URL:http://www.xorp.org/>
MFC after: 3 weeks
root is allowed to create raw sockets, then they will be able to create
routing sockets, too. However prison-root is not able to manipulate
routing tables. So when route(8) attempts to write to a routing
socket and recieves EPERM from the kernel, exit rather than moving
on with execution.
Approved by: bmilekic (mentor)
prior sysctl due to the structure growing between calls try again.
Also try again for deleting routes if things fail. We've seen
route -f fail this way which does not actually flush all routes.
This fixes it. It will whine but it will do the work.
PR: 56732
Obtained from: IronPort
answer for the euid. As a result, fix it such that setuid scripts or
programs may call route(8) to do work on their behalf.
Reviewed by: ru
MFC after: 3 days
- /0 if matches ::/128
- /64 if matches 2000::/3 and lowermost 64 bit is all 0
- /128 if matches 2000::/3 and lowermost 64 bit is non-zero 0
Obtained from: KAME/NetBSD
It does not help modern compilers, and some may take some hit from it.
(I also found several functions that listed *every* of its 10 local vars with
"register" -- just how many free registers do people think machines have?)
socket so that routing daemons and other interested parties
know when an interface is attached/detached.
PR: kern/33747
Obtained from: NetBSD
MFC after: 2 weeks
