Attention is currently required from: daniel, fixeria, lynxis lazus, pespin.
Hello Jenkins Builder, daniel, fixeria, lynxis lazus,
I'd like you to reexamine a change. Please visit
https://gerrit.osmocom.org/c/osmo-sgsn/+/37644?usp=email
to look at the new patch set (#2).
The following approvals got outdated and were removed:
Code-Review+1 by fixeria, Code-Review+2 by lynxis lazus, Verified-1 by Jenkins Builder
Change subject: Announce SGSN own TEID during UpdatePDPCtxReq after UE goes PMM-IDLE
......................................................................
Announce SGSN own TEID during UpdatePDPCtxReq after UE goes PMM-IDLE
When the UE/RNC closes the Iu conn (while keeping the PDP Context
activated), the SGSN updates the GGSN to point the GTPU tunnel to
itself. Unfortunately, only the IP address was being updated while the
TEID was kept the same (the one from the RNC).
As a result, when new MT data arrived at the GGSN, it would forward it
over GTPU to the SGSN using the incorrect RNC TEID, which the libgtp
stack at osmo-sgsn would silently drop due to not being known (because
it was >PDP_MAX=1024).
The issue can be triggered in test SGSN_Tests_Iu.TC_pmm_idle_rx_mt_data.
Related: OS#5773
Related: SYS#5435
Change-Id: I782aa43c71569922a945bd44544bb1388bf8c878
---
M include/osmocom/sgsn/pdpctx.h
M src/sgsn/gprs_mm_state_iu_fsm.c
M src/sgsn/sgsn_libgtp.c
3 files changed, 36 insertions(+), 3 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/44/37644/2
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Gerrit-Project: osmo-sgsn
Gerrit-Branch: master
Gerrit-Change-Id: I782aa43c71569922a945bd44544bb1388bf8c878
Gerrit-Change-Number: 37644
Gerrit-PatchSet: 2
Gerrit-Owner: pespin <pespin(a)sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: daniel <dwillmann(a)sysmocom.de>
Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de>
Gerrit-Reviewer: lynxis lazus <lynxis(a)fe80.eu>
Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de>
Gerrit-Attention: pespin <pespin(a)sysmocom.de>
Gerrit-Attention: daniel <dwillmann(a)sysmocom.de>
Gerrit-Attention: lynxis lazus <lynxis(a)fe80.eu>
Gerrit-MessageType: newpatchset