netdev - Getting IP address and port of a file descriptor

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>] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAMGYKAfWNm2d5n_3Tnxbwo2C1Ms+gNLp4C35BHmy-+Xwat0b+w@mail.gmail.com>
Date:	Mon, 18 Jul 2016 12:09:36 -0700
From:	Peter Chen <peter.feifan.chen@...il.com>
To:	netdev@...r.kernel.org
Subject: Getting IP address and port of a file descriptor

Hi,

   I was wondering, if I was in the kernel, and I intercepted a system
call such as read(). Would I be able, from the fd, determine the
whether the fd is (1) a network socket? (2) the IP address and port of
this socket? What are the kernel data structures and functions that
can get these information for me in the kernel? Thanks.

Peter