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Fix an error in the handling of TCP/IP sequence numbers

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2392 42af7a65-404d-4744-a932-0658087f49c3
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patacongo
2009-12-19 22:05:12 +00:00
parent 29d789372a
commit 7d63ffbf72
11 changed files with 227 additions and 116 deletions
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ChangeLog
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@@ -1016,3 +1016,10 @@
account for the 2-byte packet length and the 4-byte packet FCS in the
FIFO).
* net/accept.c - Fixed a bad assertion (only happens when debug is enabled).
* net/send.c net/uip/uip_tcpseqno.c - Fixed a critical error in the TCP/IP
logic. The NuttX port of uIP imcludes logic to send data ahead without
waiting for ACKs from the recipient; this greatly improves throughput.
However, the packet sequence number was not being updated correctly and,
as a result, packets were not be ACKed by the recipient and transfers
would sometimes stall. This is a very important bug fix (in fact, I
don't understand how TCP/IP worked at all without this fix???)