rpcbind lingering on IP no longer specified on command line

[Dmitry Morozovsky]

On Fri, 6 Jan 2006, Ceri Davies wrote:

CD> > VK> I had rpcbind running with on two interfaces like this:
CD> > VK> 
CD> > VK> rpcbind -h 192.168.100.200 -h 10.0.0.9
CD> > VK> 
CD> > VK> Now, I changed rpcbind_flags in /etc/rc.conf to just have the first address,
CD> > VK> and I restarted rpcbind.  the process list from ps shows it is running like
CD> > VK> this:
CD> > VK> 
CD> > VK> rpcbind -h 192.168.100.200
CD> > VK> 
CD> > VK> Yet nmap on the other address shows rpcbind is still listening on udp there.
CD> > VK> How do I stop that?
CD> > 
CD> > As I sometimes looked into this, rpcbind (formely portmap) listens on all 
CD> > described addresses via udp *and* an tcp:*.111 - I tried to dig why is this but 
CD> > did not succeed much.
CD> 
CD> Please test this patch.  It's probably a very naive fix, but seems to
CD> work OK.

Well, two objections:

- (obvious and dumb ;): three kinds of changes inside: behaviour, style and 
typo ;-)))

- serious: no way to run on NO_INET6 kernel:

root at mole:/usr/src/usr.sbin/rpcbind# pid rpc
83231  ??  Ss     0:00.00 /usr/obj/ar/src.6/usr.sbin/rpcbind/rpcbind
root at mole:/usr/src/usr.sbin/rpcbind# killall rpcbind
root at mole:/usr/src/usr.sbin/rpcbind# pid rpc
root at mole:/usr/src/usr.sbin/rpcbind# rpcbind
root at mole:/usr/src/usr.sbin/rpcbind# rpcinfo -p
   program vers proto   port  service
    100000    4   tcp    111  rpcbind
    100000    3   tcp    111  rpcbind
    100000    2   tcp    111  rpcbind
    100000    4   udp    111  rpcbind
    100000    3   udp    111  rpcbind
    100000    2   udp    111  rpcbind
    100000    4 local    111  rpcbind
    100000    3 local    111  rpcbind
    100000    2 local    111  rpcbind
root at mole:/usr/src/usr.sbin/rpcbind# killall rpcbind
root at mole:/usr/src/usr.sbin/rpcbind# /usr/obj/ar/src.6/usr.sbin/rpcbind/rpcbind
root at mole:/usr/src/usr.sbin/rpcbind# rpcinfo -p
rpcinfo: can't contact portmapper: RPC: Port mapper failure - RPC: Success
root at mole:/usr/src/usr.sbin/rpcbind# sockstat -4 | grep rpc
root     rpcbind    83332 7  udp4   *:111                 *:*
root     rpcbind    83332 8  udp4   *:608                 *:*
root     rpcbind    83332 9  tcp4   *:111                 *:*


Sincerely,
D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck at rinet.ru ***
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