17 Dec
2015
17 Dec
'15
3:11 p.m.
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- Log -----------------------------------------------------------------
http://cgit.osmocom.org/libosmocore/commit/?id=7afec7ee7471e54bcf8f22c8ba30…
commit 7afec7ee7471e54bcf8f22c8ba3095a19221f650
Author: Jacob Erlbeck <jerlbeck(a)sysmocom.de>
Date: Thu Dec 17 13:22:36 2015 +0100
ns: Force a defined state when sending NS RESET
Currently the state is assumed to remain the same while the reset
procedure is active. While this works correctly in general, a single
unexpected BLOCK_ACK or UNBLOCK_ACK can change the state but will not
stop the reset procedure. The leads to repeated RESET messages, where
the corresponding RESET_ACK is ignored. This is a stable state which
can only be left by manual intervention or by reception of a RESET
message from the peer.
This commit changes the RESET timeout handler to set the state to
BLOCKED/RESET when sending the new NS RESET message.
Note that this should ensure a clean restart even if the state has been
screwed up. It does not fix the handling of BLOCK_ACK or UNBLOCK_ACK
in abnormal cases.
Addresses:
gprs_ns.c:349 NSEI=8895 Tx NS RESET (NSVCI=8895, cause=O&M intervention)
gprs_ns.c:878 NSVCI=8895 Rx NS RESET ACK (NSEI=8895, NSVCI=8895)
gprs_ns.c:887 NS RESET ACK Discarding unexpected message for NS-VCI 8895 from SGSN
NSEI=8895
Ticket: OW#1551
Sponsored-by: On-Waves ehf
-----------------------------------------------------------------------
Summary of changes:
src/gb/gprs_ns.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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An utility library for Open Source Mobile Communications