Re: [lwip-users] Upgrading to 0.6.1

[leon . woestenberg]

Hello David,

please check out "STABLE" branch from CVS

These are two major bug fixes since 0.6.1:

HISTORY

(current)

  ++ Bugfixes:

  * TCP has been fixed to deal with the new use of the pbuf->ref
    counter.

  * DHCP dhcp_inform() crash bug fixed.

(0.6.1)


Regards,

Leon Woestenberg

David Ryan <address@hidden> Sent by: address@hidden 17-04-2003 03:10 Please respond to Mailing list for lwIP users

To:        lwip <address@hidden>         cc:                 Subject:        [lwip-users] Upgrading to 0.6.1

Hi all,

I've finally found time to do some testing of 0.6.1 since upgrading from 
0.6.0-rc1 with my ps2 implementation.  I first discovered that I needed 
to set netif->hwaddr_len or ARPs would return with mostly junk.  After 
resolving that issue I came up against a very strange issue...

My basic test is to connect to an echo server and then telnet to it from 
windows, and type in a few characters.  What I found was that a single 
character would result in a random number of characters in return.  I 
first checked my echo server to ensure that it was receiving one 
character and sending one character, which it did.  After that I started 
checking with Ethereal.  I found the following

pc    ----->  'x'  ------>   ps2        single character sent to ps2.
pc    <------ 'x' --------   ps2        single character returned.
pc    ------- ACK  ----> ps2        packet acknowledged
pc    <----- 'xxxx'  ------ ps2         random number of characters 
returned in new packet.
pc    -------- ACK -----> ps2        packet acknowledged

This was consistant with every packet sent.  My first assumption is that 
this is probably related to how the driver should interface with pbufs. 
  I haven't yet changed the driver from 0.6.0 code.   Is this likely, or 
should I be looking deeper into lwip?

If you think it is the driver, can someone suggest which driver I should 
base my code?

What other changes from 0.6.0 to 0.6.1 should I look out for?

Thanks,
David.






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