netdev - Questions regarding local address assignment

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 linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <Pine.LNX.4.44L0.0804141115300.2528-100000@iolanthe.rowland.org>
Date:	Mon, 14 Apr 2008 11:19:56 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	netdev@...r.kernel.org
Subject: Questions regarding local address assignment

Suppose a program creates a socket and doesn't bind it to a local 
address.  When the program wants to connect the socket to a remote 
address (for TCP) or send a datagram to a remote address (for UDP or 
raw IP), the kernel automatically assigns a local address to it.

Questions:

	1. What algorithm does the kernel use to select the local 
	   address?

	2. Where is the source code for the selection?

	3. Is this information documented anywhere?

Thank you,

Alan Stern

--
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