Change in osmo-sgsn[master]: gtp: Fix crash using new libgtp cb_recovery2 API

[Pau Espin Pedrol]

Hello Jenkins Builder, 

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

    https://gerrit.osmocom.org/10025

to look at the new patch set (#5).

Change subject: gtp: Fix crash using new libgtp cb_recovery2 API
......................................................................

gtp: Fix crash using new libgtp cb_recovery2 API

When PDP CTX CREATE ACK is received with an increased RestartCtr, cb_recovery2
is called first, which will dettach ggsn from al pdp ctx (free the
pdp_t). But when giving control back from the ctrl, libgtp still uses
that freed ctx and sends it back to osmo-sgsn through cb_conf().

As specs state in any case that we need to handle the message containing
the increased RestartCtr as valid, we then need to avoid freeing the pdp
ctx and leave handling for later in cb_conf.

Depends: osmo-ggsn (libgtp) Change-Id I53e92298f2f6b84d662a3300d922e8c2ccb178bc.
Change-Id: I0989c00e18ca95a099e1a312940eaac71957b444
---
M include/osmocom/sgsn/gprs_sgsn.h
M src/gprs/gprs_sgsn.c
M src/gprs/sgsn_libgtp.c
3 files changed, 16 insertions(+), 9 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/25/10025/5
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Gerrit-Project: osmo-sgsn
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I0989c00e18ca95a099e1a312940eaac71957b444
Gerrit-Change-Number: 10025
Gerrit-PatchSet: 5
Gerrit-Owner: Pau Espin Pedrol <pespin at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: Pau Espin Pedrol <pespin at sysmocom.de>
Gerrit-CC: Neels Hofmeyr <nhofmeyr at sysmocom.de>
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