01.09.2012 18:42, Kurt Jaeger пишет:
Hi!
Please file a PR against rc ASAP.
http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/117711
Looks like Matteo Riondato had created a patch for the problem in 2008:
http://people.freebsd.org/~matteo/diff/117711rpcbind.diff
but he never received any feedback from Carlos Eduardo Monti to see if
the patch fixed the problem.
I don't know if the patch will apply to the current FreeBSD rpcbind
code, give it a try and submit a follow up to the PR.
In the current form the patch fails in rpcbind.c on 9.1-RC1.
There are two problems with the current rpcbind.c.
1) It seems to be that even if some -h is given, the
rpcbind code uses some SUN-RPC trickery around the /etc/netconfig
file to open sockets for localhost in v4 and v6.
Is it required to bind to localhost according to the RPC spec ?
2) And it opens some dynamic ports for other uses -- anybody has an
idea why this is necessary ? Is there an requirement for this in the spec ?
Below is an example of both issues.
root rpcbind 2134 4 udp6 *:* *:*
root rpcbind 2134 5 stream /var/run/rpcbind.sock
root rpcbind 2134 6 udp6 *:111 *:*
root rpcbind 2134 7 udp6 *:924 *:*
root rpcbind 2134 8 tcp6 *:111 *:*
root rpcbind 2134 9 udp4 *:111 *:*
root rpcbind 2134 10 udp4 *:645 *:*
root rpcbind 2134 11 tcp4 *:111 *:*
Here's rpcbind started with -h <myip>:
root rpcbind 2195 4 udp6 *:* *:*
root rpcbind 2195 5 stream /var/run/rpcbind.sock
root rpcbind 2195 6 udp6 ::1:111 *:*
root rpcbind 2195 7 udp6 *:1013 *:*
root rpcbind 2195 8 tcp6 ::1:111 *:*
root rpcbind 2195 9 udp4 127.0.0.1:111 *:*
root rpcbind 2195 10 udp4 <myip>:111 *:*
root rpcbind 2195 11 udp4 *:634 *:*
root rpcbind 2195 12 tcp4 127.0.0.1:111 *:*
root rpcbind 2195 13 tcp4 <myip>:111 *:*
One can see two dynamic udp ports opened (one v4, one v6).
I might be naive, but from what I understand, it should not open
that many sockets, but only like this:
root rpcbind 2195 10 udp4 <myip>:111 *:*
root rpcbind 2195 13 tcp4 <myip>:111 *:*
If this naive 'spec' is correct, would a patch to do just this and
nothing more be OK ?
Patches are always welcome. But please read RPCBIND(8) first.
Thanks for your time!
--
WBR, Boris Samorodov (bsam)
FreeBSD Committer, http://www.FreeBSD.org The Power To Serve
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