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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/1455/">https://reviewboard.asterisk.org/r/1455/</a>
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<a href="https://reviewboard.asterisk.org/r/1455/diff/1/?file=20881#file20881line1308" style="color: black; font-weight: bold; text-decoration: underline;">trunk/main/udptl.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static struct ast_cli_entry cli_udptl[] = {</pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1308</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">udptlstart</span> <span class="o">=</span> <span class="mi">4500</span><span class="p">;</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">udptlstart</span> <span class="o">=</span> <span class="mi">4500</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">1309</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">udptlend</span> <span class="o">=</span> <span class="mi">4999</span><span class="p">;</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">udptlend</span> <span class="o">=</span> <span class="mi">4999</span><span class="p">;</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">udptlfecentries</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">udptlfecentries</span> <span class="o">=</span> <span class="mi">0</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">1311</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">udptlfecspan</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">udptlfecspan</span> <span class="o">=</span> <span class="mi">0</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">1312</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">use_even_ports</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">use_even_ports</span> <span class="o">=</span> <span class="mi">0</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;">Again, none of this is thread safe. See other conf parsing reviews.
This is particularly scary since we use udptlstart / udptlend in statements like this:
x = (udptlstart == udptlend) ? udptlstart : (ast_random() % (udptlend - udptlstart)) + udptlstart;
Highly unlikely you'd hit that and context switch in the middle of something like that during a reload, but still. Another risk is that we set the value of these before validation - which means a configuration file with a udptlstart of 1 and udptlend of 2 (or something goofier) has a chance of being used.
Also, it'd be nice if the default values for ports and limits were static consts that could be referenced at the top of the file. That would apply to the port limits used to validate the udptlstart / udptlend values below.</pre>
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<a href="https://reviewboard.asterisk.org/r/1455/diff/1/?file=20881#file20881line1314" style="color: black; font-weight: bold; text-decoration: underline;">trunk/main/udptl.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static struct ast_cli_entry cli_udptl[] = {</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">cfg</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">cfg</span> <span class="o">==</span> <span class="n">CONFIG_STATUS_FILEMISSING</span> <span class="o">||</span> <span class="n">cfg</span> <span class="o">==</span> <span class="n">CONFIG_STATUS_FILEINVALID</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;">Again, I disagree with resetting configuration values used by a live system before checking if the config file loaded successfully.</pre>
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<a href="https://reviewboard.asterisk.org/r/1455/diff/1/?file=20881#file20881line1320" style="color: black; font-weight: bold; text-decoration: underline;">trunk/main/udptl.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 struct ast_cli_entry cli_udptl[] = {</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">udptlstart</span> <span class="o">=</span> <span class="n">atoi</span><span class="p">(</span><span class="n">v</span><span class="o">-></span><span class="n">value</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;">Don't use atoi, use sscanf instead</pre>
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<a href="https://reviewboard.asterisk.org/r/1455/diff/1/?file=20881#file20881line1330" style="color: black; font-weight: bold; text-decoration: underline;">trunk/main/udptl.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static struct ast_cli_entry cli_udptl[] = {</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">((</span><span class="n">s</span> <span class="o">=</span> <span class="n">ast_variable_retrieve</span><span class="p">(</span><span class="n">cfg</span><span class="p">,</span> <span class="s">"general"</span><span class="p">,</span> <span class="s">"udptlend"</span><span class="p">)))</span> <span class="p">{</span></pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">udptlend</span> <span class="o">=</span> <span class="n">atoi</span><span class="p">(</span><span class="n">v</span><span class="o">-></span><span class="n">value</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;">sscanf</pre>
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<a href="https://reviewboard.asterisk.org/r/1455/diff/1/?file=20881#file20881line1360" style="color: black; font-weight: bold; text-decoration: underline;">trunk/main/udptl.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static struct ast_cli_entry cli_udptl[] = {</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">((</span><span class="n">s</span> <span class="o">=</span> <span class="n">ast_variable_retrieve</span><span class="p">(</span><span class="n">cfg</span><span class="p">,</span> <span class="s">"general"</span><span class="p">,</span> <span class="s">"UDPTLFECEntries"</span><span class="p">)))</span> <span class="p">{</span></pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">udptlfecentries</span> <span class="o">=</span> <span class="n">atoi</span><span class="p">(</span><span class="n">v</span><span class="o">-></span><span class="n">value</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;">sscanf</pre>
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<p>- mjordan</p>
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<p>On September 23rd, 2011, 10:57 a.m., Paul Belanger wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By Paul Belanger.</div>
<p style="color: grey;"><i>Updated Sept. 23, 2011, 10:57 a.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;">Another patch to help clean up Asterisk configuration file parsing. This time it is udptl.conf</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;">local development box</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/main/udptl.c <span style="color: grey">(337894)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/1455/diff/" style="margin-left: 3em;">View Diff</a></p>
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