netdev - Re: [PATCH v2 5/7] net-tcp: Fast Open client

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: <1342647009.2626.3713.camel@edumazet-glaptop>
Date:	Wed, 18 Jul 2012 23:30:09 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Yuchung Cheng <ycheng@...gle.com>
Cc:	davem@...emloft.net, hkchu@...gle.com, edumazet@...gle.com,
	ncardwell@...gle.com, sivasankar@...ucsd.edu,
	netdev@...r.kernel.org
Subject: Re: [PATCH v2 5/7] net-tcp: Fast Open client -
 sendmsg(MSG_FASTOPEN)

On Wed, 2012-07-18 at 14:01 -0700, Yuchung Cheng wrote:
> sendmsg() (or sendto()) with MSG_FASTOPEN is a combo of connect(2)
> and write(2). The application should replace connect() with it to
> send data in the opening SYN packet.
> 

> index 25d6322..90297db 100644
> --- a/include/linux/socket.h
> +++ b/include/linux/socket.h
> @@ -276,6 +276,7 @@ struct ucred {
>  #else
>  #define MSG_CMSG_COMPAT	0		/* We never have 32 bit fixups */
>  #endif
> +#define MSG_FASTOPEN	0x20000000 /* Send data in TCP SYN */

Could you put MSG_FASTOPEN before MSG_CMSG_CLOEXEC ?


--
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