[Bluez-devel] DUN Gateway

[Bluez-devel] DUN Gateway

[Mayank BATRA]

Hi Marcel,

There is an option --dialup -u (Pretend to be a dialup/telephone) in the dund daemon. But I see that this option only registers a DIALUP_NET_SVCLASS_ID SDP record. It does nothing else apart from that. My requirement is that I want to make dund work as a DUN Gateway. Thus, it should read AT commands sent from the DUN Terminal and send back responses to it.
Is there some way through which I can make dund do so?

Best Regards,

Mayank


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Re: [Bluez-devel] DUN Gateway

[Frédéric DALLEAU]

Hi,

I don't know if you can make dund work like this, however, the patch I =

just proposed can be used in a similar way :
See thread called "[Bluez-devel] rfcomm patch to startup an executable =

at connection"
If a modem is installed on a serial port, then a simple gateway =

application can be used between /dev/rfcomm0 and the modem.

1) Create SDP record:
sdptool add --channel 20 DUN

2) setup your serial port
stty -F /dev/ttyS0 115200 ...

3) Start the rfcomm utility in watch mode:
rfcomm --raw watch 0 20 gateway_app {} /dev/ttyS0
Note: the {} will be replaced by /dev/rfcomm0.

4) Setup your DUN data terminal and connect.
Upon connection, rfcomm launches a gateway_app process.

It's up to you to write the gateway ;) Something like this should be enough:

int f1 =3D open(argv[1]);
int f2 =3D open(argv[2]);
while(!error)
{
int fd =3D poll(f1, f2)
if(fd=3D=3D1)
    read(f1); write(f2);
else if(fd=3D=3D2)
    read(f2); write(f1);
else error;
}
close(f1);
close(f2);

Maybe a shell command already exists

Hope this helps!
Fr=E9d=E9ric


Mayank BATRA a =E9crit :
> Hi Marcel,
>
> There is an option --dialup -u (Pretend to be a dialup/telephone) in the =
dund daemon. But I see that this option only registers a DIALUP_NET_SVCLASS=
_ID SDP record. It does nothing else apart from that. My requirement is tha=
t I want to make dund work as a DUN Gateway. Thus, it should read AT comman=
ds sent from the DUN Terminal and send back responses to it.
> Is there some way through which I can make dund do so?
>
> Best Regards,
>
> Mayank
>
>
> -------------------------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job ea=
sier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
> http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&dat=
=3D121642
> _______________________________________________
> Bluez-devel mailing list
> Bluez-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bluez-devel
>   =



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Re: [Bluez-devel] DUN Gateway

[Mayank BATRA]

Hi Fr=E9d=E9ric,

> I don't know if you can make dund work like this, however, =

> the patch I =

> just proposed can be used in a similar way :
> See thread called "[Bluez-devel] rfcomm patch to startup an =

> executable =

> at connection"

Yes, I think this is what I need. I'll try this out.

> Hope this helps!

Thanks a lot!!

Best Regards,

Mayank


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21642
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Re: [Bluez-devel] DUN Gateway

[Mayank BATRA]

Hi Fr=E9d=E9ric,

I tried this out and it actually works.
Thanks for your great patch! It is really helpful!

Best Regards,

Mayank


Fr=E9d=E9ric DALLEAU wrote:
> Hi,
> =

> I don't know if you can make dund work like this, however, =

> the patch I =

> just proposed can be used in a similar way :
> See thread called "[Bluez-devel] rfcomm patch to startup an =

> executable =

> at connection"
> If a modem is installed on a serial port, then a simple gateway =

> application can be used between /dev/rfcomm0 and the modem.
> =

> 1) Create SDP record:
> sdptool add --channel 20 DUN
> =

> 2) setup your serial port
> stty -F /dev/ttyS0 115200 ...
> =

> 3) Start the rfcomm utility in watch mode:
> rfcomm --raw watch 0 20 gateway_app {} /dev/ttyS0
> Note: the {} will be replaced by /dev/rfcomm0.
> =

> 4) Setup your DUN data terminal and connect.
> Upon connection, rfcomm launches a gateway_app process.
> =

> It's up to you to write the gateway ;) Something like this =

> should be enough:
> =

> int f1 =3D open(argv[1]);
> int f2 =3D open(argv[2]);
> while(!error)
> {
> int fd =3D poll(f1, f2)
> if(fd=3D=3D1)
>     read(f1); write(f2);
> else if(fd=3D=3D2)
>     read(f2); write(f1);
> else error;
> }
> close(f1);
> close(f2);
> =

> Maybe a shell command already exists
> =

> Hope this helps!
> Fr=E9d=E9ric
> =

> =

> Mayank BATRA a =E9crit :
> > Hi Marcel,
> >
> > There is an option --dialup -u (Pretend to be a =

> dialup/telephone) in the dund daemon. But I see that this =

> option only registers a DIALUP_NET_SVCLASS_ID SDP record. It =

> does nothing else apart from that. My requirement is that I =

> want to make dund work as a DUN Gateway. Thus, it should read =

> AT commands sent from the DUN Terminal and send back responses to it.
> > Is there some way through which I can make dund do so?
> >
> > Best Regards,
> >
> > Mayank


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21642
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