Okay, I think the check would involve this: During registration, save the
TCP/IP source address of the 200 OK reply to the REGISTER request. Then
compare the TCP/IP source address of any subsequent inbound INVITE to the saved
address and if it does not match, then reject the INVITE.
What I don't know is how to obtain the actual TCP/IP source address within
sofia-sip (I only know how to access the content of the message, not the TCP/IP
header information).
Thanks,
Jerry
From: Michael Jerris [mailto:m...@jerris.com]
Sent: Wednesday, March 27, 2013 9:30 AM
To: Jerry Richards
Cc: 'sofia-sip-devel@lists.sourceforge.net'
Subject: Re: [Sofia-sip-devel] Does Sofia Have Option To Reject SIP Messages
Not Coming From Proxy It Is Registered To?
you would need some combination of looking at the actual network address the
packet came from, and the contents of the sip message to make your decision I
expect. Do you know how to access all of that information? If not, which
specific pieces do you need help with?
Mike
On Mar 27, 2013, at 12:20 PM, Jerry Richards
<jerry.richa...@teotech.com<mailto:jerry.richa...@teotech.com>> wrote:
Thanks, Mike. Do you know what those few lines would be? How can sofia-sip
know the INVITE is not spoofed from another entity?
Jerry
From: Michael Jerris [mailto:m...@jerris.com<http://jerris.com>]
Sent: Tuesday, March 26, 2013 3:32 PM
To: Jerry Richards
Cc:
'sofia-sip-devel@lists.sourceforge.net<mailto:sofia-sip-devel@lists.sourceforge.net>'
Subject: Re: [Sofia-sip-devel] Does Sofia Have Option To Reject SIP Messages
Not Coming From Proxy It Is Registered To?
Not explicitly, but its just a few lines of code in i_invite to make it do that.
Mike
On Mar 26, 2013, at 6:03 PM, Jerry Richards
<jerry.richa...@teotech.com<mailto:jerry.richa...@teotech.com>> wrote:
Hello,
As a phone endpoint (i.e. user agent), does sofia-sip have an option tag to
reject any SIP requests/messages not coming from the SIP proxy to which it is
registered?
Best Regards,
Jerry
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