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[lwip-devel] [bug #36318] Wrong UDP data size for small datagrams
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From: |
dagos |
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Subject: |
[lwip-devel] [bug #36318] Wrong UDP data size for small datagrams |
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Date: |
Fri, 27 Apr 2012 12:34:24 +0000 |
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User-agent: |
Mozilla/5.0 (Windows NT 5.1; rv:11.0) Gecko/20100101 Firefox/11.0 |
Follow-up Comment #5, bug #36318 (project lwip):
Padding is at Ethernet level, when ethernet frame is less than 64 bytes
(including CRC)
I found the (real) problem.
It is not LWIP (sorry for this post...) but my input ethernet frame which was
not correct (error in IP size field).
ethernet frame (at 0x11: 0x2e):
0000 00 30 84 89 9b 81 02 00 02 00 00 01 08 00 45 00 .0...... ......E.
0010 00 2e 1e 00 00 00 1e 11 69 a6 0a 81 00 0a 0a 81 ........ i.......
0020 00 0e 04 0e 04 fe 00 15 a0 5f 00 03 00 01 00 00 ........ ._......
0030 00 09 41 31 00 01 00 00 00 00 00 00 ..A1.... ....
instead of (at 0x11: 0x29):
0000 00 30 84 89 9b 81 02 00 02 00 00 01 08 00 45 00 .0...... ......E.
0010 00 29 1e 00 00 00 1e 11 69 a6 0a 81 00 0a 0a 81 ........ i.......
0020 00 0e 04 0e 04 fe 00 15 a0 5f 00 03 00 01 00 00 ........ ._......
0030 00 09 41 31 00 01 00 00 00 00 00 00 ..A1.... ....
So this bug can be close, sorry.
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