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      <a href="https://reviewboard.asterisk.org/r/1303/">https://reviewboard.asterisk.org/r/1303/</a>
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    <a href="https://reviewboard.asterisk.org/r/1303/diff/1/?file=17341#file17341line27917" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.8/channels/chan_sip.c</a>
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     (Diff revision 1)

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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int reload_config(enum channelreloadreason reason)</pre></td>

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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">27767</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span><span class="k">for</span> <span class="p">(</span><span class="n">v</span> <span class="o">=</span> <span class="n">ast_variable_browse</span><span class="p">(</span><span class="n">cfg</span><span class="p">,</span> <span class="s">&quot;authentication&quot;</span><span class="p">);</span> <span class="n">v</span> <span class="p">;</span> <span class="n">v</span> <span class="o">=</span> <span class="n">v</span><span class="o">-&gt;</span><span class="n">next</span><span class="p">)</span> <span class="p">{</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">27896</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span><span class="k">for</span> <span class="p">(</span><span class="n">v</span> <span class="o">=</span> <span class="n">ast_variable_browse</span><span class="p">(</span><span class="n">cfg</span><span class="p">,</span> <span class="s">&quot;authentication&quot;</span><span class="p">);</span> <span class="n">v</span> <span class="p">;</span> <span class="n">v</span> <span class="o">=</span> <span class="n">v</span><span class="o">-&gt;</span><span class="n">next</span><span class="p">)</span> <span class="p">{</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">27768</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span>        <span class="cm">/* Format for authentication is auth = username:password@realm */</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">27897</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span>        <span class="cm">/* Format for authentication is auth = username:password@realm */</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">27769</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span>        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">strcasecmp</span><span class="p">(</span><span class="n">v</span><span class="o">-&gt;</span><span class="n">name</span><span class="p">,</span> <span class="s">&quot;auth&quot;</span><span class="p">))</span> <span class="p">{</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">27898</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span>        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">strcasecmp</span><span class="p">(</span><span class="n">v</span><span class="o">-&gt;</span><span class="n">name</span><span class="p">,</span> <span class="s">&quot;auth&quot;</span><span class="p">))</span> <span class="p">{</span></pre></td>
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    <th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">27770</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span>                <span class="n"><span class="hl">authl</span></span><span class="hl"> </span><span class="o"><span class="hl">=</span></span><span class="hl"> </span><span class="n">add_realm_authentication</span><span class="p">(</span><span class="n">authl</span><span class="p">,</span> <span class="n">v</span><span class="o">-&gt;</span><span class="n">value</span><span class="p">,</span> <span class="n">v</span><span class="o">-&gt;</span><span class="n">lineno</span><span class="p">);</span></pre></td>
    <th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">27899</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span>                <span class="n">add_realm_authentication</span><span class="p">(</span><span class="o"><span class="hl">&amp;</span></span><span class="n">authl</span><span class="p">,</span> <span class="n">v</span><span class="o">-&gt;</span><span class="n">value</span><span class="p">,</span> <span class="n">v</span><span class="o">-&gt;</span><span class="n">lineno</span><span class="p">);</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">27771</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="p">}</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">27900</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="p">}</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">27772</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span><span class="p">}</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">27901</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </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 fixed this red here.</pre>
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<p>- rmudgett</p>


<br />
<p>On June 30th, 2011, 4:28 p.m., rmudgett wrote:</p>






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<div>Review request for Asterisk Developers, Russell Bryant and David Vossel.</div>
<div>By rmudgett.</div>


<p style="color: grey;"><i>Updated June 30, 2011, 4:28 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;">If you use the auth= parameter and do a &quot;sip reload&quot; while there is an ongoing call.  The peer-&gt;auth data points to free&#39;d memory.

The patch does several things:
1) Puts the authentication list into an ao2 object for reference counting to fix the reported crash during a SIP reload.
2) Converts the authentication list from open coding to AST list macros.
3) Adds display of the global authentication list in &quot;sip show settings&quot;.</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 asterisk under valgrind and attempted to make an authenticated SIP call.  Added debug statements on the test system and confirmed that the created dialog got the authentication list and that the list was used to create the challenge response.

Note: My test setup failed to connect because of how my setup was looping back the call.  I got a 482 loopback detected.  For this patch it was sufficient to determine that the necessary code paths were executed.</pre>
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<div style="margin-top: 1.5em;">
 <b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>


 <a href="https://issues.asterisk.org/jira/browse/ASTERISK-17939">ASTERISK-17939</a>


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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">

 <li>/branches/1.8/channels/chan_sip.c <span style="color: grey">(325936)</span></li>

 <li>/branches/1.8/channels/sip/include/sip.h <span style="color: grey">(325936)</span></li>

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<p><a href="https://reviewboard.asterisk.org/r/1303/diff/" style="margin-left: 3em;">View Diff</a></p>




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