On Tue, Oct 18, 2011 at 12:08:04AM -0700, Sazzad Kamal wrote:
> Hello,
>
> I want to know the way Asterisk parses configuration files. So that I can
> find out, what Asterisk does when I write, 'allow=g711' in extensions.conf
> file.
>
> As I've come to know, Asterisk configuration files are kind of DSLs.
AEL is. Calling the configuration files a DSL (Domain-Specific Language)
is a bit streching it. The format of the file itself is very simple. The
dialplan can be more complex, though.
> I thought it must have a parser to know the values in those conf files, i.e.,
> the value of 'allow' parameter.
Let's see:
In the shell:
# echo allow=g711 >>/etc/asterisk/extensions.conf
In the CLI:
sweetmorn*CLI> dialplan reload
Dialplan reloaded.
[Oct 18 11:33:38] WARNING[31241]: pbx_config.c:1595 pbx_load_config: ==!!==
Unknown directive: allow at line 941 -- IGNORING!!!
Are you sure you're after that file? This is indeed an invalind
configuration. Can you give us a hint as to what you're after?
>
> Can anyone please tell me what functions/files are used to parse these
> configuration files?
pbx/pbx_config.c , main/config.c
Hint: grep '"extensions\.conf"' */*.c
Also, if you don't have the source:
$ grep 'extensions\.conf' /usr/sbin/asterisk /usr/lib/asterisk/modules/*.so
Binary file /usr/lib/asterisk/modules/pbx_config.so matches
Binary file /usr/lib/asterisk/modules/res_ael_share.so matches
$ strings /usr/lib/asterisk/modules/res_ael_share.so | grep 'extensions\.conf'
(You may ignore this warning if '%s' exists in extensions.conf, or is created
by another module. I cannot check for those.)
This is only a simple message, not the one we're looking for.
$ strings /usr/lib/asterisk/modules/res_ael_share.so | grep 'extensions\.conf'
does give the expected output.
--
Tzafrir Cohen
icq#16849755 jabber:[email protected]
+972-50-7952406 mailto:[email protected]
http://www.xorcom.com iax:[email protected]/tzafrir
--
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