From: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
To: Patrick McHardy <kaber@trash.net>
Cc: "David S. Miller" <davem@davemloft.net>, netdev@vger.kernel.org
Subject: Re: [1/1] netlink: fix broadcasting to the wrong group.
Date: Tue, 18 Apr 2006 09:53:51 +0400 [thread overview]
Message-ID: <20060418055351.GB833@2ka.mipt.ru> (raw)
In-Reply-To: <44447AF4.5060907@trash.net>
On Tue, Apr 18, 2006 at 07:36:52AM +0200, Patrick McHardy (kaber@trash.net) wrote:
> Again, bind() takes a bitmask of the groups to subscribe to, not the
> numerical value 5. To subscribe to group 5 using bind, you use 1<<(5-1)
> as nladdr, which is 0x10000. Check out the difference between
> RTMGRP_NOTIFY (backwards compatibility for bind()) and RTNLGRP_NOTIFY
> (used internally and for NETLINK_ADD_MEMBERSHIP).
I.e. bind nladdr is an optimisation for several calls of
NETLINK_ADD_MEMBERSHIP, as long as socket setup in netlink table?
And thus bind(5) is equal to subscribe(1); subscribe(3).
--
Evgeniy Polyakov
next prev parent reply other threads:[~2006-04-18 5:54 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-17 9:36 [1/1] netlink: fix broadcasting to the wrong group Evgeniy Polyakov
2006-04-17 15:35 ` Patrick McHardy
2006-04-17 19:49 ` Evgeniy Polyakov
2006-04-17 20:14 ` Patrick McHardy
2006-04-17 20:21 ` Evgeniy Polyakov
2006-04-17 23:13 ` Patrick McHardy
2006-04-18 5:18 ` Evgeniy Polyakov
2006-04-18 5:36 ` Patrick McHardy
2006-04-18 5:53 ` Evgeniy Polyakov [this message]
2006-04-18 6:00 ` Patrick McHardy
2006-04-18 6:09 ` Evgeniy Polyakov
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