Re: [reSIProcate] Creating a DUM with automatic port?

[Byron Campen <bcampen@xxxxxxxxxxxx>]

        Yeah, my thoughts too.

Best regards,
Byron Campen

> It appears you would need to refresh the Tuple after binding (in
> InternalTransport::bind()) using getsockname().
>
> Brad
>
> Byron Campen <bcampen@xxxxxxxxxxxx> wrote on 31/01/2007 03:40:06 AM:
>
> >    Hrm. I guess this could be useful for clients. It looks like we
> > would have to make the changes necessary to allow the caller to
> > determine which port the transport was ultimately created on. Is this
> > a high priority?
> >
> > Best regards,
> > Byron Campen
> >
> > > I don't think that is what most people would expect.  Passing a
> > > port of
> > > 0, I would expect that the operating system would choose an
> > > appropriate
> > > free port for me.  However I'm not sure if this capability is
> > > portable.
> > > Does anyone know?
> > >
> > > Scott
> > >
> > > > -----Original Message-----
> > > > From: resiprocate-devel-bounces@xxxxxxxxxxxxxxxxxxxx
> > > > [mailto:resiprocate-devel-bounces@xxxxxxxxxxxxxxxxxxxx] On  
> > > > Behalf Of
> > > > Byron Campen
> > > > Sent: Tuesday, January 30, 2007 11:09 AM
> > > > To: Bradley Gorman
> > > > Cc: resiprocate-devel@xxxxxxxxxxxxxxxxxxxx
> > > > Subject: Re: [reSIProcate] Creating a DUM with automatic port?
> > > >
> > > >    Yeah, this looks broken. I think it would be reasonable to
> > > expect
> > > > the stack to select the default SIP port for the transport you are
> > > > adding if no port is specified. Does anyone disagree?
> > > >
> > > > Best regards,
> > > > Byron Campen
> > > >
> > > > > Hi All
> > > > >
> > > > > I've found something in reSIP that confuses me.
> > > > >
> > > > > I have a SIP client using the DialogUsageManager. I am trying  
> > > > > to use
> > > > > addTransport() to specify that it should connect via UDP and/or  
> > > > > TCP
> > > > > and I don't particularly care what port it should connect from (of
> > > > > course, I would prefer an ephemeral port). The prototype for
> > > > > SipStack::addTransport() implies I should be able to omit the port
> > > > and
> > > > > use a default of 0, however the implementation of this function
> > > > > immediately asserts that the port should be greater than 0. From
> > > what
> > > > > I have seen, reSIP just calls bind() with a normal sockaddr
> > > > structure.
> > > > > > From this I would assume I can allow it to select a port for me,
> > > > > > using a
> > > > > port of 0, although the assertion implies I should not. I would
> > > > prefer
> > > > > not to select my own ephemeral port so I do not have to handle any
> > > > > collisions with in-use ports.
> > > > >
> > > > >  Am I using the DUM correctly by trying to add the desired  
> > > > > transport
> > > > > with a default port of 0?
> > > > > Is there any reason I should NOT specify port 0?
> > > > >
> > > > > The relevant code snippets are below
> > > > >
> > > > > Thanks
> > > > >
> > > > > Brad
> > > > >
> > > > >
> > > > > My client:
> > > > >
> > > > >     dum.addTransport(resip::UDP, 12345, resip::V4);
> > > > >         // always uses local/client port of 12345 (BAD!)
> > > > >
> > > > >     dum.addTransport(resip::UDP, 0, resip::V4);
> > > > >         // assertion failure (port > 0)
> > > > >
> > > > >     dum.addTransport(resip::UDP);
> > > > >         // assertion failure (port > 0)
> > > > >
> > > > >
> > > > > resip/stack/SipStack.hxx:
> > > > >
> > > > >       Transport* addTransport( TransportType protocol,
> > > > >                          int port=0,.
> > > > >                          IpVersion version=V4,
> > > > >                          StunSetting stun=StunDisabled,
> > > > >                          const Data& ipInterface = Data::Empty,.
> > > > >                          const Data& sipDomainname =  
> > > > > Data::Empty, //
> > > > > only used
> > > > >                                                                    
> > > > > //
> > > > f
> > > > > or TLS
> > > > >                                                                    
> > > > > //
> > > > b
> > > > > ased stuff.
> > > > >                          const Data& privateKeyPassPhrase =
> > > > > Data::Empty,
> > > > >                          SecurityTypes::SSLType sslType =
> > > > > SecurityTypes::TLSv1);
> > > > >
> > > > >
> > > > > resip/stackSipStack.cxx:
> > > > >
> > > > > SipStack::addTransport( TransportType protocol,
> > > > >                         int port,.
> > > > >                         IpVersion version,
> > > > >                         StunSetting stun,
> > > > >                         const Data& ipInterface,.
> > > > >                         const Data& sipDomainname,
> > > > >                         const Data& privateKeyPassPhrase,
> > > > >                         SecurityTypes::SSLType sslType) {
> > > > >    assert(!mShuttingDown);
> > > > >    assert( port >  0 );
> > > > >    ...
> > > > > }
> > > > > _______________________________________________
> > > > > resiprocate-devel mailing list
> > > > > resiprocate-devel@xxxxxxxxxxxxxxxxxxxx
> > > > > https://list.resiprocate.org/mailman/listinfo/resiprocate-devel

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