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osmo-ggsn
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gtp: Allow recv DEL CTX REQ in sgsn and DEL CTX RSP in ggsn 

According to 3GPP TS 29.060 section "7.3.5
Delete PDP Context Request", both directions are valid in both GSNs.

This allows osmo-sgsn receive delete ctx indication (cb_delete_context)
in order to implement GGSN initiated requests.

Change-Id: I6927c07be4ddf74defe338d01d947056e15cd14d
This commit is contained in:
Pau Espin 2018-07-13 19:05:00 +02:00
parent 3b84e92ab3
commit a32e4c4fb8
1 changed files with 4 additions and 8 deletions
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12
gtp/gtp.c
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@ -2830,8 +2830,7 @@ int gtp_decaps0(struct gsn_t *gsn)
if ((gsn->mode == GTP_MODE_GGSN) &&
((pheader->type == GTP_CREATE_PDP_RSP) ||
(pheader->type == GTP_UPDATE_PDP_RSP) ||
(pheader->type == GTP_DELETE_PDP_RSP))) {
(pheader->type == GTP_UPDATE_PDP_RSP))) {
gsn->unexpect++;
GTP_LOGPKG(LOGL_ERROR, &peer, buffer,
status,
@ -2842,8 +2841,7 @@ int gtp_decaps0(struct gsn_t *gsn)
if ((gsn->mode == GTP_MODE_SGSN) &&
((pheader->type == GTP_CREATE_PDP_REQ) ||
(pheader->type == GTP_UPDATE_PDP_REQ) ||
(pheader->type == GTP_DELETE_PDP_REQ))) {
(pheader->type == GTP_UPDATE_PDP_REQ))) {
gsn->unexpect++;
GTP_LOGPKG(LOGL_ERROR, &peer, buffer,
status,
@ -3009,8 +3007,7 @@ int gtp_decaps1c(struct gsn_t *gsn)
if ((gsn->mode == GTP_MODE_GGSN) &&
((pheader->type == GTP_CREATE_PDP_RSP) ||
(pheader->type == GTP_UPDATE_PDP_RSP) ||
(pheader->type == GTP_DELETE_PDP_RSP))) {
(pheader->type == GTP_UPDATE_PDP_RSP))) {
gsn->unexpect++;
GTP_LOGPKG(LOGL_ERROR, &peer, buffer,
status,
@ -3021,8 +3018,7 @@ int gtp_decaps1c(struct gsn_t *gsn)
if ((gsn->mode == GTP_MODE_SGSN) &&
((pheader->type == GTP_CREATE_PDP_REQ) ||
(pheader->type == GTP_UPDATE_PDP_REQ) ||
(pheader->type == GTP_DELETE_PDP_REQ))) {
(pheader->type == GTP_UPDATE_PDP_REQ))) {
gsn->unexpect++;
GTP_LOGPKG(LOGL_ERROR, &peer, buffer,
status,