libosmocore/src/gb
Jacob Erlbeck fe2aa68db8 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
2015-12-17 14:22:04 +01:00
..
Makefile.am misc: Look into the build directory for generated files 2014-09-25 18:18:49 +02:00
common_vty.c libosmogb: move files to proper location and fix build 2012-06-17 23:05:26 +08:00
common_vty.h libosmogb: move files to proper location and fix build 2012-06-17 23:05:26 +08:00
gprs_bssgp.c bssgp: Handle BSSGP STATUS messages 2015-03-27 22:33:52 +01:00
gprs_bssgp_bss.c Doc: Adding new parameter descriptions in gprs_bssgp_bss.c 2012-09-30 16:59:33 +02:00
gprs_bssgp_util.c gprs: Set bssgph field in bssgp_msgb_alloc() 2014-09-23 16:30:49 +02:00
gprs_bssgp_vty.c bssgp: Fix VTY command 'show bssgp nsei N' 2015-03-27 22:33:39 +01:00
gprs_ns.c ns: Force a defined state when sending NS RESET 2015-12-17 14:22:04 +01:00
gprs_ns_frgre.c Fix build on Cygwin 2013-01-12 15:10:58 +01:00
gprs_ns_vty.c gb/vty: Fix the VTY node string for L_NS_NODE 2013-10-24 10:01:18 +02:00
libosmogb.map gb: Add functions to access the LL part of the NS-VC objects 2013-10-15 09:48:41 +02:00