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Re: [Linphone-developers] Linphone-developers Digest, Vol 116, Issue 2
From: |
Shu-Hsuan Lin |
Subject: |
Re: [Linphone-developers] Linphone-developers Digest, Vol 116, Issue 2 |
Date: |
Tue, 2 Oct 2012 15:43:46 -0700 |
How do you compile after making those changes?
I tried compiling with the same make command to compile whole project, but
doesn't seem to work.
Thanks,
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Sent: Tuesday, October 02, 2012 12:36 AM
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Subject: Linphone-developers Digest, Vol 116, Issue 2
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Today's Topics:
1. Re: Problem: ?eXosip: no ACK received during 20s: dropping
call? (IVAN FERNANDEZ)
----------------------------------------------------------------------
Message: 1
Date: Tue, 2 Oct 2012 09:36:16 +0200
From: IVAN FERNANDEZ <address@hidden>
To: address@hidden
Subject: Re: [Linphone-developers] Problem: ?eXosip: no ACK received
during 20s: dropping call?
Message-ID:
<address@hidden>
Content-Type: text/plain; charset="windows-1252"
We've had to add some lines more to the solution code to prevent certain
problem when the '200 OK' message doesn't include any contact field.
Here is the final solution:
*...
SSL *ssl = NULL;
//*************************************************
//the modification starts here:
char *msg;
char *contact;
char *newContact;
osip_contact_t *c;
char *result = NULL;
//we get the message
osip_message_to_str(sip, &message, &length);
//check if a 200OK message
msg = strtok(message, "\n");
if (strncmp(msg, "SIP/2.0 200 OK",14) == 0){
osip_contact_init(&c);
osip_message_get_contact(sip, 0, &c);
//check if 'contact' field exists
** if(c){**
osip_contact_to_str(c, &contact);
//check if the ?contact? includes the ?transport? sufix
result = strstr(contact, "transport");
if (result == NULL){
contact[strlen(contact) - 1] = '\0';
newContact = (char *) osip_malloc(strlen(contact) + 16);
sprintf(newContact,"%s;transport=TLS>", contact);
/*OSIP_TRACE(osip_trace(__FILE__, __LINE__, OSIP_ERROR, NULL,
"New Contact: %s\n", newContact));*/
//update the ?contact? field to include the missing ?transport? sufix
osip_list_remove(&sip->contacts, 0);
osip_message_set_contact(sip, newContact);
}
}
}
//the modification ends here
//******************************************************************
if (host == NULL) {
?
*
2012/10/1 IVAN FERNANDEZ <address@hidden>
> *Hi all,
>
> Finally, after a deeper analysis of the issue, we?ve found a better
> solution for this problem, that looks a linphone issue after all.
>
> The analysis has revealed that in the described scenary, Linphone
> isn?t forming correctly the ?SIP 200 OK? message that notifies the
> call
> acceptance: the ?contact? field must include the ?transport=tls? sufix
> but the packet that Linphone is generating doesn?t includes this
> sufix, what is causing a port mismatch that causes not only this problem
but any more.
>
> In order to solve this issue we?ve had to modified the eXtl_tls.c file
> for appending this ?transport=tls? sufix to the contact field in the
> following way (within tls_tl_send_message function):*
> *
> ...
>
> SSL *ssl = NULL;
>
>
>
> //*************************************************
>
> //the modification starts here:
>
> char *msg;
>
> char *contact;
>
> char *newContact;
>
> osip_contact_t *c;
>
> char *result = NULL;
>
> //we get the message
>
> osip_message_to_str(sip, &message, &length);
>
> //check if a 200OK message
>
> msg = strtok(message, "\n");
>
> if (strncmp(msg, "SIP/2.0 200 OK",14) == 0){
>
> osip_contact_init(&c);
>
> osip_message_get_contact(sip, 0, &c);
>
> osip_contact_to_str(c, &contact);
>
> //check if the ?contact? includes the ?transport? sufix
>
> result = strstr(contact, "transport");
>
> if (result == NULL){
>
> contact[strlen(contact) - 1] = '\0';
>
> newContact = (char *) osip_malloc(strlen(contact) + 16);
>
> sprintf(newContact,"%s;transport=TLS>", contact);
>
> /*OSIP_TRACE(osip_trace(__FILE__, __LINE__, OSIP_ERROR, NULL,
>
> "New Contact: %s\n", newContact));*/
>
> //update the ?contact? field to include the missing ?transport?
> sufix
>
> osip_list_remove(&sip->contacts, 0);
>
> osip_message_set_contact(sip, newContact);
>
> }
>
> }
>
> //the modification ends here
>
>
> //******************************************************************
>
> if (host == NULL) {
>
> ?
>
> Any comments about this issue/solution?
>
> Thanks and regards...*
>
>
> 2012/8/23 Ramon Poca <address@hidden>
>
>> Then the problem is in the SIP routing setup, not on Linphone.
>> Breaking Linphone to fix whatever your Asterisk+opensips is doing
>> wrong seems an ugly fix.
>>
>> If the dialog is not ACKed after a certain timeout, the UA should
>> drop the call. You should look at your opensips/asterisk logs to
>> check if it's being dropped.
>>
>>
>> > We use opensips as proxy to register the softphones and this
>> > opensips routes the call between the softphones throught an asterisk
server.
>> > The problem with no ACK only appears if the called terminal is
>> registered
>> > with TLS transport. Despite this lost ACK, the call is coursed
>> > without other problems...
>> > Regards
>> > 2012/8/22 Ramon Poca <address@hidden>
>> > > If no ACK is being received there might be some trouble in the
>> > > call
>> setup
>> > > (e.g. the SIP proxy is dropping it). What is the exact scenario?
>> > >
>> > > Ramon Poca - address@hidden
>> > >
>> > >
>>
>>
>> Ramon Poca - address@hidden
>>
>> _______________________________________________
>> Linphone-developers mailing list
>> address@hidden
>> https://lists.nongnu.org/mailman/listinfo/linphone-developers
>>
>
>
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