Harald Welte has submitted this change and it was merged. (
https://gerrit.osmocom.org/14282 )
Change subject: gtp: Document spec reasoning drop of Rx DeleteCtxReq
......................................................................
gtp: Document spec reasoning drop of Rx DeleteCtxReq
Change-Id: I563fc0b48595d71ebdf56a50f4e9984eee423676
---
M gtp/gtp.c
1 file changed, 8 insertions(+), 0 deletions(-)
Approvals:
Jenkins Builder: Verified
Harald Welte: Looks good to me, approved
diff --git a/gtp/gtp.c b/gtp/gtp.c
index b98fba0..430eeb4 100644
--- a/gtp/gtp.c
+++ b/gtp/gtp.c
@@ -2613,6 +2613,14 @@
gtpie_gettv1(ie, GTPIE_TEARDOWN, 0, &teardown);
if (!teardown) {
+ /* TS 29.060 section 7.3.5: If a GSN receives a Delete
PDP context
+ * without a Teardown Indicator or with a Teardown
Indicator with
+ * value set to "0" and only that PDP context is active
for a PDN
+ * connection, then the GSN shall ignore the message.
(Note:
+ * This is symptom of a race condition. The reliable
delivery of
+ * signalling messages will eventually lead to a
consistent
+ * situation, allowing the teardown of the PDP context.)
+ */
for (n = 0; n < PDP_MAXNSAPI; n++)
if (linked_pdp->secondary_tei[n])
count++;
--
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Gerrit-Project: osmo-ggsn
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I563fc0b48595d71ebdf56a50f4e9984eee423676
Gerrit-Change-Number: 14282
Gerrit-PatchSet: 1
Gerrit-Owner: Pau Espin Pedrol <[email protected]>
Gerrit-Reviewer: Harald Welte <[email protected]>
Gerrit-Reviewer: Jenkins Builder (1000002)
