On Fri, 2009-06-26 at 21:58 +0200, Mikael Magnusson wrote: > Hi, > > there is a problem with the transaction matching code. If Yxa receives > an INVITE request over TCP and CANCEL over UDP, then Yxa is not able to > find the INVITE transaction and instead forwards the CANCEL in a new > transaction. This new transaction in turn receives a 481 response, since > it didn't match the INVITE Yxa sent earlier. > > I think the problem is in the sipheader:via_sentby/1, which should > ignore the transport protocol since there is no guaranteed that the > INVITE and CANCEL are received over the same transport protocol. The > sender might have switched to TCP for the INVITE because of its size, > and defaults to UDP for CANCEL. > > Patch included. > > Regards, > Mikael >
New patch includes updated tests. Let me know if there are any problems with the patch. /Mikael
fix_via_sentby_proto.dpatch
Description: application/shellscript
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