nat: Simplify the code and call auth_imsi from the main method

Do the auth check in bsc_nat_filter_sccp_cr, remove the cause from
the signature again. For the bsc_nat_filter_dt restructure the flow
but leave the auth inside the id response message.

Return 1 when the IMSI has been extracted as indicator for running
the auth check. 1 has not been used before and is safe to be used
as this indicator.
1 file changed
tree: c2748bcdd75c3818b602169a0f51a9451c1d4b79
  1. debian/
  2. hlrsync/
  3. linux-kernel/
  4. openbsc/
  5. wireshark/
  6. README