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
diff --git a/gtp/gtp.c b/gtp/gtp.c
index ac3ec99..5b83d20 100644
--- a/gtp/gtp.c
+++ b/gtp/gtp.c
@@ -2830,8 +2830,7 @@
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 @@
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 @@
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 @@
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,