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Re: R: [lwip-users] httpd question
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From: |
Jonathan Larmour |
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Subject: |
Re: R: [lwip-users] httpd question |
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Date: |
Tue, 19 Aug 2008 19:22:09 +0100 |
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User-agent: |
Mozilla Thunderbird 1.0.8-1.1.fc3.4.legacy (X11/20060515) |
Marek Matej wrote:
Ok, connection seems to be estabilished correctly in both cases.
Differences start after GET is received.
Attached are pcap files of FF and IE communication.
Please take a look, if You see some fundamental differences.
The traffic and data sent appears to be the same. I think the difference
is how FF and IE respond to spurious data: there are bogus hex 9 (tab)
characters floating around in the data beside CRLFs. Look at this bit:
13:57:42.966190 IP 192.168.5.250.http > 192.168.5.74.3479: P 1:257(256)
ack 257 win 1024
0x0000: 4500 0128 0007 0000 ff06 2e34 c0a8 05fa E..(.......4....
0x0010: c0a8 054a 0050 0d97 0000 19a1 f65d 074a ...J.P.......].J
0x0020: 5018 0400 6740 0000 4854 5450 2f31 2e30 address@hidden/1.0
0x0030: 2032 3030 204f 4b0d 0a09 436f 6e74 656e .200.OK...Conten
0x0040: 742d 7479 7065 3a20 7465 7874 2f68 746d t-type:.text/htm
0x0050: 6c0d 0a09 0d0a 093c 6874 6d6c 3e20 093c l......<html>..<
See bytes 0x39, 0x53, 0x56, 0x5e.
Most important I suspect is the one at 0x53 which should be an empty CRLF
to indicate the end of HTTP headers but is in fact TAB, CR, LF. I suspect
FF doesn't like that, and MSIE lazily accepts it.
Jifl
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