[asterisk-dev] [Code Review] 3653: chan_sip: (Optionally) poll even on first part of TLS message

[rmudgett]

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Please close this review as discarded.  The other review has been committed.

- rmudgett


On June 20, 2014, 9:06 a.m., Alexander Traud wrote:
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> (Updated June 20, 2014, 9:06 a.m.)
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> Review request for Asterisk Developers.
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> Bugs: ASTERISK-18345
>     https://issues.asterisk.org/jira/browse/ASTERISK-18345
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> Repository: Asterisk
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> Description
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> With some large SDP, a *second* poll is required on the first part of a TLS message.
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> The current code did not poll a second time because the variable need_poll was inited with yes (1). That poll was a no-operation because there was a socket event already (which mandates fgets without poll). In the current code, poll returned immediately, fgets returned NULL, after_poll was yes (1), sip_tls_read returned failed (-1), _sip_tcp_helper_thread went to cleanup, called ast_tcptls_close_session_file, which closed the TLS connection.
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> The proposed patch, reads the gets the first message. If that failed, it does poll. This fixed all large SDP issues with SIP over TLS which I faced.
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> I am aware there were changes committed to tcptls.c just recently (revision 415907). Anyway, let us fix this bug as well.
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> Diffs
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>   trunk/channels/chan_sip.c 416319 
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> Diff: https://reviewboard.asterisk.org/r/3653/diff/
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> Testing
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> Asterisk 12.3
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> Thanks,
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> Alexander Traud
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