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-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <8b693bb1-1711-5289-5bc8-e5955da21968@petrovitsch.priv.at>
Date:   Mon, 26 Oct 2020 17:12:40 +0000
From:   Bernd Petrovitsch <bernd@...rovitsch.priv.at>
To:     "Michael J. Baars" <mjbaars1977.linux-kernel@...erfiber.eu>,
        linux-kernel@...r.kernel.org
Subject: Re: SIGHUP on connect

Hi all!

On 25/10/2020 16:11, Michael J. Baars wrote:
[...]
> I've been writing a simple client and server for cluster computing this weekend. At first everything appeared to work just fine, but soon enough I found some
> inexplicable bind errors. I've tried to make sure that the client closes it's sockets before the server closes it's sockets, to prevent linger, but trying did

Which were exactly?
English/original text pls ...

And The close() (and shutdown() syscalls, respectively) don't avoid
the FIN_WAIT2 timeout on a closed socket.
Just set the SO_REUSEADDR socket option on the listening socket.

> not help. Now I think I found the problem.

Then solve it.

> Please do have a look at the code. It looks like the SIGHUP is sent to the server not on close or exit, but on the connect instead.

Too lazy to save and uncompress the file ...

MfG,
	Bernd
-- 
There is no cloud, just other people computers.
-- https://static.fsf.org/nosvn/stickers/thereisnocloud.svg

Download attachment "pEpkey.asc" of type "application/pgp-keys" (3111 bytes)

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ