Hi!
I am trying to understand the code to make several tests. If I understand, the default setting is to refuse any phone trying to connect the network? I would like to change this in the code to accept everyone. I saw in bsc_hack the Control Channel Description which seems to deal with this. Am I wrong?
static u_int8_t si3[] = { /* header */0x49, 0x06, 0x1B, /* cell */0x00, 0x01, /* lai */0x00, 0xF1, 0x10, 0x00, 0x01, /* desc */0x01, 0x03, 0x00, //Control Channel Description /* option*/0x28, /* selection*/0x62, 0x00, /* rach */0xD5, 0x00, 0x00, /* reset*/0x80, 0x00, 0x00, 0x2B };
Which value shall I put to accept everyone?
Thanks!
Best regards Eric Cathelinaud
On Thursday 11 June 2009 19:19:40 Eric Cathelinaud wrote:
Hi!
I am trying to understand the code to make several tests. If I understand, the default setting is to refuse any phone trying to connect the network? I would like to change this in the code to accept everyone. I saw in bsc_hack the Control Channel Description which seems to deal with this. Am I wrong?
Accept everyone? as in location updating request? There should be a command line option for it. The thing that is missing to make this really useful is that no one in the network got an "extension" assigned so calling, SMS, etc. is not useful...
z.
Yes. This is very useful feature in some legitimate applications, like handset testing and disaster relief. It also makes it very easy to accidentally block cellular service for random subscribers in your test area if you forget that it is turned on. If you put a feature like this on you system, you might also consider delivering a test message to the newly attached subscriber telling them what has happened. Otherwise the system too easily lends itself to abuse.
-- David
On Jun 11, 2009, at 7:07 PM, Holger Freyther wrote:
On Thursday 11 June 2009 19:19:40 Eric Cathelinaud wrote:
Hi!
I am trying to understand the code to make several tests. If I understand, the default setting is to refuse any phone trying to connect the network? I would like to change this in the code to accept everyone. I saw in bsc_hack the Control Channel Description which seems to deal with this. Am I wrong?
Accept everyone? as in location updating request? There should be a command line option for it. The thing that is missing to make this really useful is that no one in the network got an "extension" assigned so calling, SMS, etc. is not useful...
z.
David A. Burgess Kestrel Signal Processing, Inc.
On Friday 12 June 2009 06:06:36 David A. Burgess wrote:
Yes. This is very useful feature in some legitimate applications, like handset testing and disaster relief. It also makes it very easy to accidentally block cellular service for random subscribers in your test area if you forget that it is turned on. If you put a feature like this on you system, you might also consider delivering a test message to the newly attached subscriber telling them what has happened. Otherwise the system too easily lends itself to abuse.
Good idea, we added this switch as sort of hack for the 25c3 to send invitations. So what we could do would be let the "unauthorized" user in, assign an extension from a pool, send the user a SMS with his number.
thanks for the hint z.
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David A. Burgess -
Eric Cathelinaud -
Holger Freyther