From owner-freebsd-hackers Wed Sep 22 6: 8: 3 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from citadel.cequrux.com (citadel.cdsec.com [192.96.22.18]) by hub.freebsd.org (Postfix) with ESMTP id B14FF15CC5 for ; Wed, 22 Sep 1999 06:07:39 -0700 (PDT) (envelope-from gram@cequrux.com) Received: (from nobody@localhost) by citadel.cequrux.com (8.9.3/8.9.3) id PAA08584 for ; Wed, 22 Sep 1999 15:07:29 +0200 (SAST) Received: by citadel.cequrux.com via recvmail id 8541; Wed Sep 22 15:07:04 1999 Message-ID: <37E8D481.5A8C484A@cequrux.com> Date: Wed, 22 Sep 1999 15:07:13 +0200 From: Graham Wheeler Organization: Cequrux Technologies X-Mailer: Mozilla 4.08 [en] (X11; I; FreeBSD 2.2.8-RELEASE i386) MIME-Version: 1.0 To: hackers@freebsd.org Subject: Domain sockets and chroot Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi all I have an interesting problem. I have two processes that need to communicate via a domain socket. One of the processes (the client) runs in a chrooted environment. The server creates a domain socket to listen for requests with the path /cage/tmp/server. The client runs chrooted in the /cage directory, and creates a domain socket /tmp/client.. It sends a request to the server with a sendto() specifying the socket address /tmp/server. The server received the request okay, but gets the sender socket address /tmp/client. ; i.e. it is the chrooted view of the client socket. If it tries to send back a response, it fails (no such file or directory). I have tried having the server prepend /cage to the client socket address before sending the response, but this has made no difference, even though (in the non-chrooted view) /cage/tmp/client. clearly does exist. Does anyone have an idea why prepending /cage doesn't work, and how I can solve this? And is this arguably a bug with chroot()/recvfrom()? TIA gram -- Dr Graham Wheeler E-mail: gram@cequrux.com Cequrux Technologies Phone: +27(21)423-6065/6/7 Firewalls/Virtual Private Networks Fax: +27(21)24-3656 Data/Network Security Specialists WWW: http://www.cequrux.com/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message