From: Willy Tarreau <w@1wt.eu>
To: Rick Jones <rick.jones2@hp.com>
Cc: Herbert Xu <herbert@gondor.hengli.com.au>, netdev@vger.kernel.org
Subject: Re: TCP: orphans broken by RFC 2525 #2.17
Date: Mon, 27 Sep 2010 22:20:13 +0200 [thread overview]
Message-ID: <20100927202013.GA12373@1wt.eu> (raw)
In-Reply-To: <4CA0F9AD.5050302@hp.com>
On Mon, Sep 27, 2010 at 01:08:13PM -0700, Rick Jones wrote:
> Willy Tarreau wrote:
> >Hi Herbert,
> >
> >On Mon, Sep 27, 2010 at 04:02:22PM +0800, Herbert Xu wrote:
> >
> >>Willy Tarreau <w@1wt.eu> wrote:
> >>
> >>>Looking more closely, I noticed that in traces showing the issue,
> >>>the client was sending an additional CRLF after the data in a
> >>>separate packet (permitted eventhough not recommended).
> >>
> >>Where is this permitted? RFC2616 says:
> >>
> >> Certain buggy HTTP/1.0 client implementations generate
> >> extra CRLF's after a POST request. To restate what is
> >> explicitly forbidden by the BNF, an HTTP/1.1 client MUST
> >> NOT preface or follow a request with an extra CRLF.
> >
> >
> >And the paragraph just before says :
> >
> > In the interest of robustness, servers SHOULD ignore any empty
> > line(s) received where a Request-Line is expected. In other words, if
> > the server is reading the protocol stream at the beginning of a
> > message and receives a CRLF first, it should ignore the CRLF.
>
> It is the HTTP server code being addressed there, not the underlying TCP
> stack is it not?
yes, precisely.
regards,
Willy
prev parent reply other threads:[~2010-09-27 20:20 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-26 13:17 TCP: orphans broken by RFC 2525 #2.17 Willy Tarreau
2010-09-26 17:02 ` Eric Dumazet
2010-09-26 17:40 ` Willy Tarreau
2010-09-26 18:35 ` Eric Dumazet
2010-09-26 18:49 ` Willy Tarreau
2010-09-26 21:01 ` Eric Dumazet
2010-09-26 21:46 ` Willy Tarreau
2010-09-26 22:19 ` David Miller
2010-09-26 22:10 ` David Miller
2010-09-26 19:16 ` Willy Tarreau
2010-09-26 22:14 ` David Miller
2010-09-26 22:13 ` David Miller
2010-09-26 22:34 ` Willy Tarreau
2010-09-26 22:38 ` David Miller
2010-09-26 22:54 ` Willy Tarreau
2010-09-26 23:08 ` David Miller
2010-09-26 23:25 ` Willy Tarreau
2010-09-27 1:12 ` David Miller
2010-09-27 5:39 ` Willy Tarreau
2010-09-27 5:48 ` Eric Dumazet
2010-09-27 6:04 ` Willy Tarreau
2010-09-27 6:44 ` David Miller
2010-09-27 6:42 ` David Miller
2010-09-27 7:34 ` Willy Tarreau
2010-09-27 7:42 ` David Miller
2010-09-27 19:21 ` Willy Tarreau
2010-09-27 23:28 ` Herbert Xu
2010-09-28 5:12 ` Willy Tarreau
2010-09-28 5:32 ` David Miller
2010-09-28 5:37 ` Willy Tarreau
2010-09-27 9:12 ` Julian Anastasov
2010-09-27 19:24 ` Willy Tarreau
2010-09-27 20:00 ` Eric Dumazet
2010-09-28 9:01 ` Julian Anastasov
2010-09-28 9:26 ` Willy Tarreau
2010-09-27 8:02 ` Herbert Xu
2010-09-27 20:00 ` Willy Tarreau
2010-09-27 20:08 ` Rick Jones
2010-09-27 20:20 ` Willy Tarreau [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100927202013.GA12373@1wt.eu \
--to=w@1wt.eu \
--cc=herbert@gondor.hengli.com.au \
--cc=netdev@vger.kernel.org \
--cc=rick.jones2@hp.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).