tree f7567d801d32f439fc249ca8efb58d301a5123c3
parent 8000e0ea509c5a4488a5d1878f465418d32b7fdb
author Jacob Erlbeck <jerlbeck@sysmocom.de> 1422536428 +0100
committer Holger Hans Peter Freyther <holger@moiji-mobile.com> 1422649687 +0100

gprs: Send GSUP error reply for requests without IMSI

Currently gprs_subscr_rx_gsup_message returns immediately after it
detects that an IMSI has not been given in the received GSUP message.
While this is ok for responses (result or error), a request should
always be answered.

This commit adds code to reply with a corresponding error message
("Invalid mandatory information") when it receives a request without
an IMSI.

Note that the generated error message will not contain an IMSI either.

Sponsored-by: On-Waves ehf