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<a href="https://reviewboard.asterisk.org/r/4155/diff/1/?file=68767#file68767line44" style="color: black; font-weight: bold; text-decoration: underline;">branches/12/res/res_pjsip_nat.c</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="n">AST_LIST_HEAD</span><span class="p">(</span><span class="n">transport_mappings</span><span class="p">,</span> <span class="n">transport_mapping</span><span class="p">)</span> <span class="n">transport_mappings</span><span class="p">;</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I don't think this is needed at all.</pre>
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<a href="https://reviewboard.asterisk.org/r/4155/diff/1/?file=68767#file68767line62" style="color: black; font-weight: bold; text-decoration: underline;">branches/12/res/res_pjsip_nat.c</a>
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(Diff revision 1)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="n">AST_LIST_LOCK</span><span class="p">(</span><span class="o">&</span><span class="n">transport_mappings</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="tb"> </span><span class="n">AST_LIST_TRAVERSE_SAFE_BEGIN</span><span class="p">(</span><span class="o">&</span><span class="n">transport_mappings</span><span class="p">,</span> <span class="n">tp_mapping</span><span class="p">,</span> <span class="n">next</span><span class="p">)</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="tb"> </span><span class="tb"> </span><span class="cm">/* if mapping is for this transport */</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="k">if</span> <span class="p">(</span><span class="n">tp</span> <span class="o">==</span> <span class="n">tp_mapping</span><span class="o">-></span><span class="n">tp</span><span class="p">)</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="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="cm">/* adjust dialog target information */</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="n">tp_mapping</span><span class="o">-></span><span class="n">dlg</span><span class="o">-></span><span class="n">remote</span><span class="p">.</span><span class="n">contact</span><span class="o">-></span><span class="n">uri</span> <span class="o">=</span> <span class="p">(</span><span class="n">pjsip_uri</span> <span class="o">*</span><span class="p">)</span><span class="n">tp_mapping</span><span class="o">-></span><span class="n">orig_uri</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="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="n">tp_mapping</span><span class="o">-></span><span class="n">dlg</span><span class="o">-></span><span class="n">target</span> <span class="o">=</span> <span class="p">(</span><span class="n">pjsip_uri</span> <span class="o">*</span><span class="p">)</span><span class="n">tp_mapping</span><span class="o">-></span><span class="n">orig_uri</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="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="cm">/* remove and destroy mapping */</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="n">AST_LIST_REMOVE_CURRENT</span><span class="p">(</span><span class="n">next</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="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="n">destroy_mapping</span><span class="p">(</span><span class="n">tp_mapping</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="tb"> </span><span class="n">AST_LIST_TRAVERSE_SAFE_END</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="tb"> </span><span class="n">AST_LIST_UNLOCK</span><span class="p">(</span><span class="o">&</span><span class="n">transport_mappings</span><span class="p">);</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Instead of maintaining this in a list why not alloc the mapping from the dialog pool, pass it in as a parameter to the state listener, and store it on the dialog? That way you don't need to do a list lookup for this sort of, you have direct access to it.</pre>
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<a href="https://reviewboard.asterisk.org/r/4155/diff/1/?file=68767#file68767line187" style="color: black; font-weight: bold; text-decoration: underline;">branches/12/res/res_pjsip_nat.c</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">pj_strcmp2</span><span class="p">(</span><span class="o">&</span><span class="n">rdata</span><span class="o">-></span><span class="n">msg_info</span><span class="p">.</span><span class="n">msg</span><span class="o">-></span><span class="n">line</span><span class="p">.</span><span class="n">req</span><span class="p">.</span><span class="n">method</span><span class="p">.</span><span class="n">name</span><span class="p">,</span> <span class="s">"INVITE"</span><span class="p">))</span> <span class="p">{</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">The PJSIP way to do this comparison would be:
if (!pjsip_method_cmp(&rdata->msg_info.msg->line.req.method, &pjsip_invite_method)) {</pre>
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<a href="https://reviewboard.asterisk.org/r/4155/diff/1/?file=68767#file68767line230" style="color: black; font-weight: bold; text-decoration: underline;">branches/12/res/res_pjsip_nat.c</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="n">orig_uri</span> <span class="o">=</span> <span class="n">pjsip_uri_clone</span><span class="p">(</span><span class="n">dlg</span><span class="o">-></span><span class="n">pool</span><span class="p">,</span> <span class="n">uri</span><span class="p">);</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Just a question - is this already on the dialog? (Do you need to clone it?)</pre>
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<a href="https://reviewboard.asterisk.org/r/4155/diff/1/?file=68767#file68767line273" style="color: black; font-weight: bold; text-decoration: underline;">branches/12/res/res_pjsip_nat.c</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="n">remove_tp_mapping</span><span class="p">(</span><span class="n">session</span><span class="p">);</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">If my approach is viable you'd want to drop the state listener here.</pre>
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<p>- Joshua Colp</p>
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<p>On November 6th, 2014, 3:49 p.m. UTC, opticron wrote:</p>
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<div>Review request for Asterisk Developers and Joshua Colp.</div>
<div>By opticron.</div>
<p style="color: grey;"><i>Updated Nov. 6, 2014, 3:49 p.m.</i></p>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="https://issues.asterisk.org/jira/browse/ASTERISK-24486">ASTERISK-24486</a>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
Asterisk
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<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 modifies contact rewriting to revert to the original contact URI for a dialog when persistent transports shut down.
Some calls can enter a condition where their contact URI from the initial incoming invite was rewritten for a reliable transport, but that transport has been shut down due to inactivity. Such reliable transports can not be re-established since the remote host was never listening on the associated port. In cases such as these, it is useful to be able to fall back to the original contact URI since it might be accessible and allow the call to continue normally.</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;">Verified that this allowed the call to operate normally despite the original reliable connection being torn down where this situation was experienced.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>branches/12/res/res_pjsip_nat.c <span style="color: grey">(425222)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/4155/diff/" style="margin-left: 3em;">View Diff</a></p>
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