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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/1988/">https://reviewboard.asterisk.org/r/1988/</a>
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<p style="margin-top: 0;">On June 13th, 2012, 8:52 a.m., <b>Matt Jordan</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This seems like a fairly intrusive change for a release branch. If we're going to make this change, then the SDP_offer_answer test should be passing with no modifications to the test.
If its failing because Asterisk no longer rejects offers in the same fashion, then I'm not sure we should make this change in a release branch.</pre>
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<p>On June 13th, 2012, 9:34 a.m., <b>Matt Jordan</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">So, I probably should have read where you were making this change - disregard this comment :-)</pre>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I should have stated explicitly that this was a trunk-only change targeted for Asterisk 11. I'll change the description with the new patch.</pre>
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<p style="margin-top: 0;">On June 13th, 2012, 8:52 a.m., <b>Matt Jordan</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/1988/diff/2/?file=28886#file28886line9323" style="color: black; font-weight: bold; text-decoration: underline;">trunk/channels/chan_sip.c</a>
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(Diff revision 2)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int process_sdp(struct sip_pvt *p, struct sip_request *req, int t38action)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">codecs</span> <span class="o">=</span> <span class="n">m</span> <span class="o">+</span> <span class="n">len</span><span class="p">;</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="cm">/* produce zero-port m-line since it may be needed later */</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">offer</span><span class="o">-></span><span class="n">decline_m_line</span> <span class="o">=</span> <span class="n">malloc</span><span class="p">(</span><span class="mi">14</span> <span class="cm">/* "m=audio 0 RTP/" */</span> <span class="o">+</span> <span class="n">strlen</span><span class="p">(</span><span class="n">protocol</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> <span class="o">+</span> <span class="n">strlen</span><span class="p">(</span><span class="n">codecs</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span><span class="p">);</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="cm">/* guaranteed to be exactly the right length */</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">sprintf</span><span class="p">(</span><span class="n">offer</span><span class="o">-></span><span class="n">decline_m_line</span><span class="p">,</span> <span class="s">"m=audio 0 RTP/%s %s"</span><span class="p">,</span> <span class="n">protocol</span><span class="p">,</span> <span class="n">codecs</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I'm not sure we should be building decline information every time we have an offer. I would expect that we would only build decline information for an offer if Asterisk can't handle that offer.
This finding applies to the other media types as well.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This is particularly hard to predict with only the information available in process_sdp(). The relevant logic is in add_sdp() and depends on two parameters (add_audio and add_t38) as well as information from the pvt which has not yet been determined in process_sdp(). Video also depends on directmedia-related information.</pre>
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<p style="margin-top: 0;">On June 13th, 2012, 8:52 a.m., <b>Matt Jordan</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/1988/diff/2/?file=28886#file28886line9325" style="color: black; font-weight: bold; text-decoration: underline;">trunk/channels/chan_sip.c</a>
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(Diff revision 2)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int process_sdp(struct sip_pvt *p, struct sip_request *req, int t38action)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">offer</span><span class="o">-></span><span class="n">decline_m_line</span> <span class="o">=</span> <span class="n">malloc</span><span class="p">(</span><span class="mi">14</span> <span class="cm">/* "m=audio 0 RTP/" */</span> <span class="o">+</span> <span class="n">strlen</span><span class="p">(</span><span class="n">protocol</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span> <span class="o">+</span> <span class="n">strlen</span><span class="p">(</span><span class="n">codecs</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I'm not a fan of comments directly in a malloc statement.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Fixed.</pre>
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<p>- opticron</p>
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<p>On June 12th, 2012, 9:56 p.m., opticron wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By opticron.</div>
<p style="color: grey;"><i>Updated June 12, 2012, 9:56 p.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This modification stores known SDP streams in an AST_LIST in the sip pvt, replacing the static offered_media array so that port-zeroed version of each stream can be stored and used when rebuilding the SDP response. This also makes messages and comments more consistent.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Ran this through the testsuite and the only thing that failed was SDP_offer_answer (which was expected).</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>trunk/channels/chan_sip.c <span style="color: grey">(368849)</span></li>
<li>trunk/channels/sip/include/sip.h <span style="color: grey">(368849)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/1988/diff/" style="margin-left: 3em;">View Diff</a></p>
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