lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:	Fri, 13 Apr 2007 12:37:18 +0100
From:	David Howells <dhowells@...hat.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org
Subject: Re: Getting a network interface list from within the kernel 

David Miller <davem@...emloft.net> wrote:

> Issue a RTM_GETLINK rtnetlink request, and parse the response.

Okay, I've managed to find code that does this.  However, RTM_GETLINK does not
appear to return any IPv4 addressing information.  It does, however, contain
the MTU details which is one of the three things I wanted.

I found that RTM_GETADDR will give me the IPv4 address and something from
which I can calculate the netmask.

I don't suppose there's a single op that will allow me to get all three in one
go?

Oh, and can I assume that the interface index numbers returned by RTM_GETLINK
match those returned by RTM_GETADDR?  Even if an interface is removed between
issuing the two calls?  Alternatively, do I need to compare interface names as
those are available between both?

David
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists