[asterisk-dev] [Code Review] Properly handle 200 and unknown responses conatined in NOTIFY requests received in response to REFER requests

[David Vossel]

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/branches/1.8/channels/chan_sip.c
<https://reviewboard.asterisk.org/r/860/#comment5690>

    should this be <= 200?


- David


On 2010-08-12 14:22:47, Matthew Nicholson wrote:
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> (Updated 2010-08-12 14:22:47)
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> Review request for Asterisk Developers.
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> Summary
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> Since r217482 it appears that asterisk has not properly been handling responses to REFER requests.  The problem was that after receiving a '200 Ok' sipfrag in a NOTIFY request received in response to a REFER request, asterisk would not queue up a AST_TRANSFER_SUCCESS control frame to signal the completion of the transfer.  That combined with ast_transfer()'s willingness to wait indefinitely for said control frame, causes the channel to "freeze" in the Transfer app.
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> Additionally, a NOTIFY containing a sipfrag with an unknown response would result in AST_TRANSFER_SUCCESS being queued.
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> This addresses bug 17486.
>     https://issues.asterisk.org/view.php?id=17486
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> Diffs
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>   /branches/1.8/channels/chan_sip.c 281983 
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> Diff: https://reviewboard.asterisk.org/r/860/diff
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> Testing
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> Tested with a testsuite test that causes asterisk to originate a call and send a REFER to a sipp script that sends various responses back to asterisk.
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> Thanks,
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> Matthew
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