netdev - Re: How to compile tcp fast open client app with kernel tfo client support ?

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]

Date:	Fri, 9 Nov 2012 12:17:30 -0800
From:	Vincent Li <vincent.mc.li@...il.com>
To:	Yuchung Cheng <ycheng@...gle.com>
Cc:	Vijay Subramanian <subramanian.vijay@...il.com>,
	netdev@...r.kernel.org
Subject: Re: How to compile tcp fast open client app with kernel tfo client
 support ?

> Hi Vincent,
>
> Note that MSG_FASTOPEN flag should be used only once. Subsequent
> sendto(MSG_FASTOPEN) == connect() on connected sockets. You can verify
> if the fast open is successful by checking a bit in TCP_INFO.
> http://patchwork.o zlabs.org/patch/192883/ if you are running a fresh
> netdev build.
>
> I'll submit a patch to update the man page on MSG_FASTOPEN too.
>
> Yuchung
>

I have tried to run fresh build net-next, for some reason the build
stops ssh service from starting up, tried 3.7.0-rc4 too, same issue. I
don't know if it is new kernel bug or ubuntu upstart bug, but that is
another issue.

I will study the tcp fast open more, thanks.

Vincent
--
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