Change in osmo-sgsn[master]: gprs_gmm: send Service Reject when no PDP ctxs are available.

[Mykola Shchetinin]

Hello lynxis lazus, Pau Espin Pedrol, Jenkins Builder, 

I'd like you to reexamine a change. Please visit

    https://gerrit.osmocom.org/13744

to look at the new patch set (#8).

Change subject: gprs_gmm: send Service Reject when no PDP ctxs are available.
......................................................................

gprs_gmm: send Service Reject when no PDP ctxs are available.

Look at PDP Context Status IE: if there are any PDP contexts which are
ACTIVE on MS side and there are no PDP contexts which are ACTIVE on the
network side, then send Service Reject with the cause "NO PDP
ACTIVATED". This forces MS to reactivate the PDP contexts.

3GPP TS 24.008 Section 4.7.13.4 Service request procedure not accepted
by the network. Cause # 40.

Fixes: OS#3937
Change-Id: If610cbef17c25ec44e65d4f1b2340d102c560437
---
M src/gprs/gprs_gmm.c
M tests/sgsn/sgsn_test.c
M tests/sgsn/sgsn_test.ok
3 files changed, 42 insertions(+), 1 deletion(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/44/13744/8
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Gerrit-Project: osmo-sgsn
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: If610cbef17c25ec44e65d4f1b2340d102c560437
Gerrit-Change-Number: 13744
Gerrit-PatchSet: 8
Gerrit-Owner: Mykola Shchetinin <mykola at pentonet.com>
Gerrit-Reviewer: Jenkins Builder (1000002)
Gerrit-Reviewer: Mykola Shchetinin <mykola at pentonet.com>
Gerrit-Reviewer: Pau Espin Pedrol <pespin at sysmocom.de>
Gerrit-Reviewer: lynxis lazus <lynxis at fe80.eu>
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