tree 267356e6b35fda60ce035ab62c63aa36b01a432e
parent e27ab916d6bcbc4f6d5dd2725f37f39c76d7ce30
author Jacob Erlbeck <jerlbeck@sysmocom.de> 1411111722 +0200
committer Holger Hans Peter Freyther <holger@moiji-mobile.com> 1412869343 +0200

gbproxy/sgsn: Enforce termination when creating a P-TMSI/TLLI

Currently the number of iterations when creating a P-TMSI/TLLI is not
limited. It is nevertheless very unlikely that the loop will not
terminate. On the other hand, the number of iterations of every loop
should have an upper bound (loop variant) which wouldn't be the case
here if an arbitrary random generator was used.

This patch limits the number of iterations to 23 and logs an error if
the creation of the indentifier was aborted due to this limit.

Sponsored-by: On-Waves ehf