3 Sep
2007
3 Sep
'07
1:07 p.m.
Hi Klaus,
So in order to make it work, the RURI of Asterisk uses should contain
"transport=TLS" right.
if the "transport=TLS" can be appended to the SIP message, the
disconnection shall be handle properly ?
Currently I'm struggling w/ subst/subst_uri ... it's seems the Regex
textops module used was slightly different from Unix,
I do "subst('/^BYE(.*)SIP\/2\.0/BYE\1;transport=TLS SIP\/2\.0/ ');" but
it doesn't work ...
I'm not sure if subst able to alter the header but if it doesn't, is
there any command that I can use to alter the BYE header ?
Thanks,
David Loh
Klaus Darilion wrote:
Route headers are fine - the problem is the RURI of
the BYE:
See the Contact header of the INVITE:
Contact: <sip:davidloh@x.x.80.178:4294;transport=TLS>
This URI must be used in the RURI of the BYE, but Asterisk uses:
BYE sip:davidloh@x.x.80.178:4294 SIP/2.0
Thus, the proxy forwards the request with UDP instead of TLS. Thus,
this is a bug in Asterisk. Try update Asterisk. Try looking at
Asterisk Bug tracker for this bug. If you are unlucky, open a bug
report on the Asterisk bug tracker (bugs.digium.com)
regards
klaus
David Loh schrieb:
Hi,
Arrggghh .. that's one of my attempts to eliminate the broken "BYE"
problem... that's ngrep was captured when I set "modparam("rr",
"enable_double_rr", "0");",
I've paste another ngrep to http://pastebin.ca/674450, this time the
double RR header is enabled.
And I've posted my .cfg to http://pastebin.ca/Nx0Ss4Fd (key to
decrypt the post is "openser").
Even though double RR header is enabled, but for BYE it's still
doesn't process properly :(
For the .cfg file line #130 onward, I did tried t_relay, forward and
force_send_socket,
but none of this will do the trick (force_send_socket was complaining
TLS error due to missing certificate (?) )
Would appreciate if anyone could enlighten me why is this happen ?
Thanks,
David Loh
Klaus Darilion wrote:
But the INVITE you posted at
http://pastebin.ca/673392 also has only
one Record-Route header.
regards
klaus
David Loh schrieb:
Hi,
Yea, OpenSER proxy was add 2 record-route header for the INVITE/ACK
...but when asterisk disconnected the call and send BYE back to
OpenSER,
the TLS RR header wasn't present, the only 2 RR header was
"SIP/2.0/UDP <OpenSER_IP>" and "SIP/2.0/UDP
<Client_WAN_IP>" ....
I'm puzzled ... is there any command to 'fix' this?
Regards,
David Loh
Klaus Darilion wrote:
> The openser proxy should add 2 record-route header (TLS and UDP =
> double record route). This is why it does not work.
>
> regards
> klaus
>
> David Loh schrieb:
>> Hi All,
>>
>> Greeting.
>>
>> I've been struggle with OpenSER TLS implementation for more than
>> a week, since I've ported from UDP to TLS, everything work fine
>> except the "BYE" request from Asterisk (loose route), my
>> implementation was something like below:
>>
>> [Client] --> [Router] --> [Internet] --> [SIP] --> [Asterisk]
>>
>> My OpenSER.cfg already configured to listen on two port which is
>> :- "tls:eth0:5061" and "udp:eth0:5060", client make p2p or
PSTN
>> (or even voicemail) having no problem,
>> but when the callee disconnect the call, caller will never get
>> hang up :(
>>
>> I've attached my ethereal trace/ngrep to pastebin,
>> http://pastebin.ca/673392
>>
>> Wondering if anyone can help me with the broken "BYE" that
>> returned from Asterisk ?
>> Line #131, supposedly this line should have contain 2 Via header,
>> one was "SIP/2.0/UDP" and another "SIP/2.0/TLS",
>> but somehow the TLS via header was gone !! (compare to previous
>> ACK (Line #117) /INVITE (Line #51).
>> Due to the missing TLS via header, OpenSER log file was
>> complaining "protocol/port mis-match".
>>
>> The last BYE request (Line #256) is actually firing from Client,
>> which contain the "TLS" via.
>>
>>
>> I've even tried "force_send_socket" to port 5061 (instead of
>> 5060) from loose route, but it complaining TLS certificate error,
>> since Asterisk doesn't support TLS natively, I've no clue why is
>> the ACK/INVITE/CANCEL work but not BYE.
>> if (loose_route) {
>> ....
>> if(is_method("BYE")) { force_send_socket(IP:5061); }
>> }
>>
>>
>> Has any one gone through of this kinda OpenSER over TLS +
>> Asterisk setup,
>> I'm really appreciate if you can share your experience with me,
>> or pin point what's the mistakes I made here.
>>
>> Thanks in advance.
>>
>> Regards,
>> David Loh
>>
>>
>>
>>
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