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rrc-nr,test: add tests for DL/ULInformationTransfer 

Signed-off-by: Carlo Galiotto <carlo@srs.io>
This commit is contained in:
Carlo Galiotto 2021-11-18 13:46:00 +01:00 committed by Andre Puschmann
parent 1417331edb
commit 7d230a260e
3 changed files with 89 additions and 10 deletions
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2
srsgnb/src/stack/rrc/test/rrc_nr_test.cc
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@ -158,8 +158,8 @@ void test_rrc_sa_connection()
uecfg.phy_cfg.pdcch.search_space_present[2] = false; uecfg.phy_cfg.pdcch.search_space_present[2] = false;
TESTASSERT_SUCCESS(rrc_obj.add_user(0x4601, uecfg)); TESTASSERT_SUCCESS(rrc_obj.add_user(0x4601, uecfg));
test_rrc_nr_connection_establishment(task_sched, rrc_obj, rlc_obj, mac_obj, ngap_obj,0x4601); test_rrc_nr_connection_establishment(task_sched, rrc_obj, rlc_obj, mac_obj, ngap_obj,0x4601);
test_rrc_nr_info_transfer(task_sched, rrc_obj, pdcp_obj, ngap_obj, 0x4601);
test_rrc_nr_security_mode_cmd(task_sched, rrc_obj, pdcp_obj, 0x4601); test_rrc_nr_security_mode_cmd(task_sched, rrc_obj, pdcp_obj, 0x4601);
} }

77
srsgnb/src/stack/rrc/test/rrc_nr_test_helpers.cc
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@ -10,8 +10,6 @@
* *
*/ */
#define DED_NAS_MSG_STRING "7E01280E534C337E004109000BF200F110800101347B80802E02F07071002D7E004109000BF200F110800101347B80801001002E02F0702F0201015200F11000006418010174000090530101"
#include "rrc_nr_test_helpers.h" #include "rrc_nr_test_helpers.h"
#include "srsran/common/test_common.h" #include "srsran/common/test_common.h"
#include <string> #include <string>
@ -100,7 +98,9 @@ void test_rrc_nr_connection_establishment(srsran::task_scheduler& task_sched,
complete_ies.registered_amf.amf_id.from_number(0x800101); complete_ies.registered_amf.amf_id.from_number(0x800101);
complete_ies.guami_type_present = true; complete_ies.guami_type_present = true;
complete_ies.guami_type.value = rrc_setup_complete_ies_s::guami_type_opts::native; complete_ies.guami_type.value = rrc_setup_complete_ies_s::guami_type_opts::native;
auto& ded_nas_msg = complete_ies.ded_nas_msg.from_string(DED_NAS_MSG_STRING); std::string NAS_msg_str = "7E01280E534C337E004109000BF200F110800101347B80802E02F07071002D7E004109000BF200F11080010134"
"7B80801001002E02F0702F0201015200F11000006418010174000090530101";
auto& ded_nas_msg = complete_ies.ded_nas_msg.from_string(NAS_msg_str);
{ {
pdu = srsran::make_byte_buffer(); pdu = srsran::make_byte_buffer();
@ -125,10 +125,75 @@ void test_rrc_nr_connection_establishment(srsran::task_scheduler& task_sched,
// Check here if the MSG sent to NGAP is correct // Check here if the MSG sent to NGAP is correct
// Create a srsran::span object for the expected MSG // Create a srsran::span object for the expected MSG
asn1::unbounded_octstring<false> expected; asn1::unbounded_octstring<false> expected;
expected.from_string(DED_NAS_MSG_STRING); expected.from_string(NAS_msg_str);
srsran::span<const uint8_t> expected_span{expected}; TESTASSERT(expected == ngap.last_pdu);
TESTASSERT(expected_span == ngap.last_pdu); }
void test_rrc_nr_info_transfer(srsran::task_scheduler& task_sched,
rrc_nr& rrc_obj,
pdcp_nr_rrc_tester& pdcp,
ngap_rrc_tester& ngap,
uint16_t rnti)
{
// STEP 1 : Send DLInformationTransfer (gNB -> UE)
// generate sdu to pass as NAS message in DLInformationTransfer
srsran::unique_byte_buffer_t sdu;
sdu = srsran::make_byte_buffer();
// create an unbounded_octstring object that contains a random NAS message (we simulate a NAS message)
asn1::unbounded_octstring<false> NAS_DL_msg;
NAS_DL_msg.from_string("c574defc80ba722bffb8eacb6f8a163e3222cf1542ac529f6980bb15e0bf12d9f2b29f11fb458ec9");
sdu->append_bytes(NAS_DL_msg.data(), NAS_DL_msg.size());
// trigger the RRC to send the DLInformationTransfer
rrc_obj.write_dl_info(rnti, std::move(sdu));
// Test whether there exists the SRB1 initiated in the Connection Establishment
// We test this as the SRB1 was setup in a different function
TESTASSERT_EQ(rnti, pdcp.last_sdu_rnti);
TESTASSERT_EQ(srsran::srb_to_lcid(srsran::nr_srb::srb1), 1);
// Send SecurityModeCommand (gNB -> UE)
dl_dcch_msg_s dl_dcch_msg;
{
asn1::cbit_ref bref{pdcp.last_sdu->data(), pdcp.last_sdu->size()};
TESTASSERT_SUCCESS(dl_dcch_msg.unpack(bref));
}
// Test if the unpacked message retrived from PCDP is correct
TESTASSERT_EQ(dl_dcch_msg_type_c::types_opts::c1, dl_dcch_msg.msg.type().value);
TESTASSERT_EQ(dl_dcch_msg_type_c::c1_c_::types_opts::dl_info_transfer, dl_dcch_msg.msg.c1().type().value);
TESTASSERT_EQ(dl_info_transfer_s::crit_exts_c_::types_opts::dl_info_transfer,
dl_dcch_msg.msg.c1().dl_info_transfer().crit_exts.type().value);
dl_info_transfer_ies_s& ies_DL = dl_dcch_msg.msg.c1().dl_info_transfer().crit_exts.dl_info_transfer();
TESTASSERT(ies_DL.ded_nas_msg_present == true);
TESTASSERT(NAS_DL_msg == ies_DL.ded_nas_msg);
// STEP 2: Send ULInformationTransfer (UE -> gNB)
ul_dcch_msg_s ul_dcch_msg;
auto& ies_UL = ul_dcch_msg.msg.set_c1().set_ul_info_transfer().crit_exts.set_ul_info_transfer();
ies_UL.ded_nas_msg_present = true;
// create an unbounded_octstring object that contains a random NAS message (we simulate a NAS message)
asn1::unbounded_octstring<false> NAS_UL_msg;
NAS_UL_msg.from_string("6671f8bc80b1860f29b3a8b3b8563ce6c36a591bb1a3dc6612674448fb958d274426d326356aa9aa");
ies_UL.ded_nas_msg.resize(NAS_UL_msg.size());
memcpy(ies_UL.ded_nas_msg.data(), NAS_UL_msg.data(), NAS_UL_msg.size());
srsran::unique_byte_buffer_t pdu;
{
pdu = srsran::make_byte_buffer();
asn1::bit_ref bref{pdu->data(), pdu->get_tailroom()};
TESTASSERT_SUCCESS(ul_dcch_msg.pack(bref));
pdu->N_bytes = bref.distance_bytes();
}
// send message to RRC
rrc_obj.write_pdu(rnti, 1, std::move(pdu));
// get a span for both NAS msg and compare if the actual transmitted is correct
TESTASSERT(NAS_UL_msg == ngap.last_pdu);
} }
void test_rrc_nr_security_mode_cmd(srsran::task_scheduler& task_sched, void test_rrc_nr_security_mode_cmd(srsran::task_scheduler& task_sched,

20
srsgnb/src/stack/rrc/test/rrc_nr_test_helpers.h
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@ -59,11 +59,19 @@ public:
uint32_t s_tmsi) uint32_t s_tmsi)
{ {
last_sdu_rnti = rnti; last_sdu_rnti = rnti;
last_pdu = pdu; last_pdu.resize(pdu.size());
memcpy(last_pdu.data(), pdu.data(), pdu.size());
} }
uint16_t last_sdu_rnti; void write_pdu(uint16_t rnti, srsran::const_byte_span pdu)
srsran::const_byte_span last_pdu; {
last_sdu_rnti = rnti;
last_pdu.resize(pdu.size());
memcpy(last_pdu.data(), pdu.data(), pdu.size());
}
uint16_t last_sdu_rnti;
asn1::dyn_octstring last_pdu;
}; };
/** /**
@ -84,6 +92,12 @@ void test_rrc_nr_connection_establishment(srsran::task_scheduler& task_sched,
ngap_rrc_tester& ngap, ngap_rrc_tester& ngap,
uint16_t rnti); uint16_t rnti);
void test_rrc_nr_info_transfer(srsran::task_scheduler& task_sched,
rrc_nr& rrc_obj,
pdcp_nr_rrc_tester& pdcp,
ngap_rrc_tester& ngap,
uint16_t rnti);
void test_rrc_nr_security_mode_cmd(srsran::task_scheduler& task_sched, void test_rrc_nr_security_mode_cmd(srsran::task_scheduler& task_sched,
rrc_nr& rrc_obj, rrc_nr& rrc_obj,
pdcp_nr_rrc_tester& pdcp, pdcp_nr_rrc_tester& pdcp,