[asterisk-dev] [Code Review] Improve SDP parsing warning messages and RFC compliance

[opticron]

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Ship it!


Other than the red blobs you mentioned, I think this is good to go.  Of course, this will change the behavior of chan_sip significantly when dealing with devices that don't generate completely Asterisk-compatible SDP.

- opticron


On May 24, 2012, 4:15 p.m., Kevin Fleming wrote:
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> (Updated May 24, 2012, 4:15 p.m.)
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> 
> Review request for Asterisk Developers and opticron.
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> Summary
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> This patch improves the warning messages generated during SDP parsing when various problems are found:
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> * 'Unsupported media type' is only reported when that is in fact the case, not when a supported media type is included in an 'm' line that has an invalid format.
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> * All warning messages related to parsing 'm' lines now include the 'm' line contents.
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> * (minor bugfix) newline added to port-number-zero warning messages.
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> * Warning messages improved to use RFC-specified terminology for various items.
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> * Warnings for offers that include more than port for a single media type now include the media type.
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> * Nearly all SDP errors will result in a '488 Not Acceptable Here' response, rather than an attempt to use some part of the offer/answer presented in the SDP.
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> This patch does *not* correct Asterisk's behavior when a media stream offer with a port number of 0 (zero) is received; that will have to be done in another patch.
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> Diffs
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>   /branches/1.8/channels/chan_sip.c 367677 
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> Diff: https://reviewboard.asterisk.org/r/1811/diff
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> Testing
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> Compile testing only.
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> 
> Thanks,
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> Kevin
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>

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