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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/1978/">https://reviewboard.asterisk.org/r/1978/</a>
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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 started this review a while ago and Terry and Josh got their say in before I was able to publish, so sorry if there's overlap.
This is mostly looking good. One thing to look for globally is that "ACL" should be capitalized in documentation and other user-readable output. The exception, of course, is when talking about the name of the option "acl" and in CLI commands and such.</pre>
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<a href="https://reviewboard.asterisk.org/r/1978/diff/1/?file=28602#file28602line1491" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/channels/chan_h323.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static struct oh323_user *build_user(const char *name, struct ast_variable *v, struct ast_variable *alt, int realtime)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">}</span> <span class="k">else</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">-></span><span class="n">name</span><span class="p">,</span> <span class="s">"nacl"</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="n">user</span><span class="o">-></span><span class="n">ha</span> <span class="o">=</span> <span class="n">ast_append_nacl</span><span class="p">(</span><span class="n">user</span><span class="o">-></span><span class="n">ha</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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<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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<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;">Given the naming convention for other options, this should probably be "acl" instead of "nacl"</pre>
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<a href="https://reviewboard.asterisk.org/r/1978/diff/1/?file=28608#file28608line15" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/configs/acl.conf.sample</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">; Any confuration that uses ACLs made to be able to used named ACLs will</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;">s/confuration/configuration/</pre>
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<a href="https://reviewboard.asterisk.org/r/1978/diff/1/?file=28608#file28608line16" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/configs/acl.conf.sample</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">; append a named ACL with the 'acl' option in its configuration in a similar</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 think "specify" would may more sense here than "append"</pre>
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<a href="https://reviewboard.asterisk.org/r/1978/diff/1/?file=28608#file28608line26" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/configs/acl.conf.sample</a>
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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;">All of these are weird because they specify the final octet of the IP address but the subnet mask is a /24. So for instance, the two deny lines you provide in example_named_acl2 are redundant since they are blocking the same subnet.</pre>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">; example_named_acl1 above shows an example of whitelisting. When whitelisting, the</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">; named ACLs should follow a deny that blocks everything (like deny=0.0.0.0/0.0.0.0)</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 example should use the guideline you specified of denying everything and then whitelisting specific addresses.</pre>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">; While deny and permit can work in tandem within an nacl, the later an acl item appears</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;">Here's another case where you used "nacl" where you likely meant to either use "named ACL" or "ACL"</pre>
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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;">It's easier to understand this example if you just combine the rules into a single named ACL.
To be pedantic, the example you give would not result in a single usable address. It would only result in a single usable subnet (10.24.20.0 to be specific). This is because the subnet mask is a /24 and not a /32. To this end, both of the permit lines you provided result in the same subnet being allowed due to the subnet mask.</pre>
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<a href="https://reviewboard.asterisk.org/r/1978/diff/1/?file=28613#file28613line271" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/include/asterisk/acl.h</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * \brief Append an named_acl to an existing host access list</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;">s/an/a/</pre>
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<a href="https://reviewboard.asterisk.org/r/1978/diff/1/?file=28613#file28613line294" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/include/asterisk/acl.h</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="kt">int</span> <span class="n">init_named_acl</span><span class="p">(</span><span class="kt">void</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;">Give this an ast_ prefix.</pre>
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<a href="https://reviewboard.asterisk.org/r/1978/diff/1/?file=28617#file28617line7319" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/main/manager.c</a>
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static void event_cfg_change_cb(const struct ast_event *event, void *userdata)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">react</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="n">__init_manager</span><span class="p">(</span><span class="mi">1</span><span class="p">,</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="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;">It seems a bit drastic to completely reload manager because named ACLs have changed. Perhaps just update the named ACLs.</pre>
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<a href="https://reviewboard.asterisk.org/r/1978/diff/1/?file=28618#file28618line4" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/main/named_acl.c</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * Copyright (C) 1999-2012, Digium, Inc.</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 2012 for the copyright.</pre>
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<a href="https://reviewboard.asterisk.org/r/1978/diff/1/?file=28618#file28618line88" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/main/named_acl.c</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="k">struct</span> <span class="n">named_acl</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="k">struct</span> <span class="n">ast_ha</span> <span class="o">*</span><span class="n">ha</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="kt">char</span> <span class="n">name</span><span class="p">[</span><span class="n">NAME_LENGTH</span><span class="p">];</span> <span class="cm">/* Same max length as a configuration category */</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><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;">A possible suggestion here that you don't necessarily have to take:
Since you only have one string on this structure, you could redefine the structure like:
struct named_acl {
struct ast_ha *ha;
char name[1];
}
Then just allocate enough space for the name instead of having it be 80 bytes every time.</pre>
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<a href="https://reviewboard.asterisk.org/r/1978/diff/1/?file=28618#file28618line330" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/main/named_acl.c</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="s">"Usage: acl show <name></span><span class="se">\n</span><span class="s">"</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;">Optional elements are typically enclosed in square brackets.</pre>
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<p>- Mark</p>
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<p>On June 7th, 2012, 10:48 a.m., jrose wrote:</p>
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<div>Review request for Asterisk Developers, Mark Michelson, Terry Wilson, and Olle E Johansson.</div>
<div>By jrose.</div>
<p style="color: grey;"><i>Updated June 7, 2012, 10:48 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;">This feature is based on oej's deluxepine (or something like that) branch with a similarly named feature. ACLs are defined in acl.conf and can be used by pretty much anything that has ACL options permit/deny (acl='aclname'). acl= works similarly to permit= and deny= in that it simply appends to the working ACL, so they can be combined with other uses of permit/deny/acl.
Also in use in this patch are twilson's new config options.
Since named acls are duplicated when used in another configuration, configurations that use named acls need to be updated if acl.conf is reloaded. This is accomplished with a new event type and the consumption of that event is demonstrated currently only in manager.conf
If this seems like a proper approach to this problem, that will be replicated across other consumers of named acls.</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;">Various tests for configuring and using named acls were performed, and a task for writing comprehensive testsuite tests is in the queue. Additionally, various means of reloading the configuration have been performed, and so far they pan out aside from a bug with an unchanged acl.conf which is a generic problem against config options accidentally introduced a little while back.</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/CHANGES <span style="color: grey">(368662)</span></li>
<li>/trunk/channels/chan_h323.c <span style="color: grey">(368662)</span></li>
<li>/trunk/channels/chan_iax2.c <span style="color: grey">(368662)</span></li>
<li>/trunk/channels/chan_mgcp.c <span style="color: grey">(368662)</span></li>
<li>/trunk/channels/chan_sip.c <span style="color: grey">(368662)</span></li>
<li>/trunk/channels/chan_skinny.c <span style="color: grey">(368662)</span></li>
<li>/trunk/channels/chan_unistim.c <span style="color: grey">(368662)</span></li>
<li>/trunk/configs/acl.conf.sample <span style="color: grey">(PRE-CREATION)</span></li>
<li>/trunk/configs/iax.conf.sample <span style="color: grey">(368662)</span></li>
<li>/trunk/configs/manager.conf.sample <span style="color: grey">(368662)</span></li>
<li>/trunk/configs/sip.conf.sample <span style="color: grey">(368662)</span></li>
<li>/trunk/configs/skinny.conf.sample <span style="color: grey">(368662)</span></li>
<li>/trunk/include/asterisk/acl.h <span style="color: grey">(368662)</span></li>
<li>/trunk/include/asterisk/event_defs.h <span style="color: grey">(368662)</span></li>
<li>/trunk/main/acl.c <span style="color: grey">(368662)</span></li>
<li>/trunk/main/asterisk.c <span style="color: grey">(368662)</span></li>
<li>/trunk/main/manager.c <span style="color: grey">(368662)</span></li>
<li>/trunk/main/named_acl.c <span style="color: grey">(PRE-CREATION)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/1978/diff/" style="margin-left: 3em;">View Diff</a></p>
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