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srsLTE
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remove EPS bearer deletion when going RRC idle 

when going RRC idle, NAS gets informed and currently
clears all registered EPS bearers. This is wrong because
the EPS can outlive a RRC session.

Also in the conformance tests it's clearly seen
that after a RRC release a dedicatated EPS bearer is
created with a linked EPS bearer ID that has been
created _before_ RRC went idle.
This commit is contained in:
Andre Puschmann 2019-09-20 16:43:51 +02:00
parent 191e8d6520
commit 0e89f72846
1 changed files with 10 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
srsue/src/stack/upper/nas.cc
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@ -250,9 +250,9 @@ void nas::init(usim_interface_nas* usim_, rrc_interface_nas* rrc_, gw_interface_
}
}
cfg = cfg_;
cfg = cfg_;
if((read_ctxt_file(&ctxt))) {
if ((read_ctxt_file(&ctxt))) {
usim->generate_nas_keys(ctxt.k_asme, k_nas_enc, k_nas_int,
ctxt.cipher_algo, ctxt.integ_algo);
nas_log->debug_hex(k_nas_enc, 32, "NAS encryption key - k_nas_enc");
@ -264,7 +264,8 @@ void nas::init(usim_interface_nas* usim_, rrc_interface_nas* rrc_, gw_interface_
running = true;
}
void nas::stop() {
void nas::stop()
{
running = false;
write_ctxt_file(ctxt);
}
@ -277,7 +278,8 @@ void nas::get_metrics(nas_metrics_t* m)
*m = metrics;
}
emm_state_t nas::get_state() {
emm_state_t nas::get_state()
{
return state;
}
@ -296,7 +298,6 @@ void nas::run_tti(uint32_t tti)
*/
void nas::start_attach_request(srslte::proc_state_t* result)
{
nas_log->info("Attach Request\n");
switch (state) {
case EMM_STATE_DEREGISTERED:
@ -381,12 +382,13 @@ bool nas::detach_request() {
return false;
}
void nas::leave_connected() {
eps_bearer.clear();
void nas::leave_connected()
{
return;
}
bool nas::is_attached() {
bool nas::is_attached()
{
return state == EMM_STATE_REGISTERED;
}