netdev - determining IP address within network device driver

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Message-ID: <e14fe6280704260746u228e6d3vf369e5add59879cb@mail.gmail.com>
Date:	Thu, 26 Apr 2007 16:46:50 +0200
From:	"Nic Gyrovague" <nic.gyrovague@...il.com>
To:	netdev@...r.kernel.org
Subject: determining IP address within network device driver

I have a hw network device that can benefit from knowing what its
associated IP addresses (if any) are... Is there a "correct" way to
determine the IP address(es) from within the driver code? Its
obviously possible to snoop into ARP
and IP traffic to try to "guess", but this is not always 100% reliable
(e.g. with bridging) and also only gives you the IP address once packets
have started flowing... In other words, if userspace
sets/changes or adds (e.g. IP alias) an IP address to the
device (e.g. "ifconfig eth0  192.168.1.5"), I'd like to somehow be
informed of that within
my driver, or at the least, be able to somehow poll a
kernel structure or API to determine said information...

-- 
gyrovague
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