[Asterisk-Dev] Embedded Asterisk

[Lars Boegild Thomsen]

I've done further testing and this is getting interesting.

If using more or less the standard configuration - incoming IAX2 works but
incoming SIP packages are left untouched by asterisk.  So - the big question
is really - in what way is Asterisk handling IAX2 and SIP differently when
pulling packages of the udp stack?

Regards,

	Lars...

> -----Original Message-----
> From: asterisk-dev-admin at lists.digium.com
> [mailto:asterisk-dev-admin at lists.digium.com]On Behalf Of Lars Boegild
> Thomsen
> Sent: 24 October 2003 16:13
> To: asterisk-dev at lists.digium.com
> Subject: [Asterisk-Dev] Embedded Asterisk
>
>
> Hi Mark,
>
> Thanx for the assistance on IRC today (nick: lth).  I tried your
> suggestion
> (printf in sipsock_read function) and can confirm your suspicion - the
> function is never called when Asterisk is linked with uClibc.
>
> A few more pointers:
>
> 1. I updated the uClibc library to latest snapshot - since it now has
> dn_expand function built in.  This results in Asterisk being able to clean
> compile with only the following changes:
>
> 	1. uClibc does not have the res_nxxxxx functions - so BSD
> like calls are
> used in dns.c (basically I changed the #ifdef __Linux__ to #ifdef
> __xxLinux__)
>
> 	2. uClibc does not have res_search - changed that to
> res_query call for
> testing
>
> 2. Asterisk compiles and start up without any error messages at all.  When
> loading the chan_sip:
>
> 	Parsing: '/etc/asterisk/sip.conf': Found
> 	SIP Listening on 0.0.0.0:5060
> 	Using TOS bits 0
> 	Registered channel type 'sip' (Session Initiation Protocol (SIP))
> 	Registered application 'SIPDtmfMode'
> 	WARNING[1024]: File chan_sip.c, Line 5433
> (restart_monitor): Cannot kill
> myself
>
> 3. Asterisk definitely "binds" the port.  Netstat -a:
>
> 	...
> 	udp	0	0	*:6060	*:*
> 	...
>
> 4. sipsock_read is never called.  The input buffer on the above netstat
> output grows and grows if I try to connect a sip ua.
>
> 5. Absolutely NO hint output is generate from Asterisk.
>
> That's all I can think of right now.  It's obvious that Asterisk
> never poll
> the incomping packages from the udp stack - but why?  Any other
> things I can
> try?
>
> Regarding uClibc in general - most applications does run flawlessly - so I
> don't think the networking code is generally flawed.
>
> Regards,
>
>     Lars...
>
> --
> Lars Boegild Thomsen
> Technical Director
> JustIT Sdn. Bhd.
> Cell Phone (MY): +60 (16) 323 1999
> ICQ: 6478559
> Yahoo Chat: lars_boegild_thomsen at yahoo.com
> MSN Chat: lars_boegild_thomsen at hotmail.com
> http://www.justit.ws
>
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