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srsLTE
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Added attach request as a UL info trasnfer in the UE. Added interface to remove eps bearer map when going idle. Fixed bug in GW in assignment of IPv4 addresses. UE seems to rebound from the service reject now.

This commit is contained in:
Pedro Alvarez 2019-06-20 18:31:25 +01:00 committed by Andre Puschmann
parent 8a6c1ea826
commit 8f5ad55c4a
5 changed files with 35 additions and 17 deletions
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1
lib/include/srslte/interfaces/ue_interfaces.h
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@ -129,6 +129,7 @@ public:
BARRING_MT,
BARRING_ALL
} barring_t;
virtual void leave_connected() = 0;
virtual void set_barring(barring_t barring) = 0;
virtual void paging(asn1::rrc::s_tmsi_s* ue_identiy) = 0;
virtual bool is_attached() = 0;

1
srsue/hdr/stack/upper/nas.h
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@ -54,6 +54,7 @@ public:
emm_state_t get_state();
// RRC interface
void leave_connected();
void paging(asn1::rrc::s_tmsi_s* ue_identiy);
void set_barring(barring_t barring);
void write_pdu(uint32_t lcid, srslte::unique_byte_buffer_t pdu);

1
srsue/src/stack/rrc/rrc.cc
View File

@ -1730,6 +1730,7 @@ void rrc::leave_connected()
drb_up = false;
security_is_activated = false;
measurements.reset();
nas->leave_connected();
pdcp->reset();
rlc->reset();
phy->reset();

21
srsue/src/stack/upper/nas.cc
View File

@ -232,6 +232,10 @@ bool nas::detach_request() {
return false;
}
void nas::leave_connected() {
eps_bearer.clear();
return;
}
bool nas::is_attached() {
return state == EMM_STATE_REGISTERED;
@ -702,6 +706,7 @@ void nas::parse_attach_accept(uint32_t lcid, unique_byte_buffer_t pdu)
nas_log->warning("EMM Cause: %d\n", attach_accept.emm_cause );
}
if (LIBLTE_MME_PDN_TYPE_IPV4 == act_def_eps_bearer_context_req.pdn_addr.pdn_type) {
ip_addr = 0;
ip_addr |= act_def_eps_bearer_context_req.pdn_addr.addr[0] << 24;
ip_addr |= act_def_eps_bearer_context_req.pdn_addr.addr[1] << 16;
ip_addr |= act_def_eps_bearer_context_req.pdn_addr.addr[2] << 8;
@ -1077,7 +1082,7 @@ void nas::parse_service_reject(uint32_t lcid, unique_byte_buffer_t pdu)
LIBLTE_MME_SERVICE_REJECT_MSG_STRUCT service_reject;
if (liblte_mme_unpack_service_reject_msg((LIBLTE_BYTE_MSG_STRUCT*)pdu.get(), &service_reject)) {
nas_log->error("Error unpacking service reject.\n");
goto exit;
return;
}
nas_log->console("Received service reject with EMM cause=0x%x.\n", service_reject.emm_cause);
@ -1088,8 +1093,18 @@ void nas::parse_service_reject(uint32_t lcid, unique_byte_buffer_t pdu)
// FIXME: handle NAS backoff-timers correctly
exit:
ctxt.rx_count++;
// Mark state as EMM-DEREGISTERED
state = EMM_STATE_DEREGISTERED;
// Reset security context
ctxt = {};
have_ctxt = false;
have_guti = false;
// Send attach request after receiving service reject
pdu->clear();
gen_attach_request(pdu.get());
rrc->write_sdu(std::move(pdu));
}
void nas::parse_esm_information_request(uint32_t lcid, unique_byte_buffer_t pdu)