A maximum RRC buffer size of 1024 might be very small. We should
increase it, but then the 5G RRC_BUF_SIZE does conflict with other
definitions. To make it unique, also rename to NR_RRC_BUF_SIZE.
Always set the firstActive and defaultBWP in the initial
cellGroupConfig. This is necessary to make the Quectel accept the
handover RRCReconfiguration; it seems that this also works reliably in
normal connection set up, so we can add it.
Pass consistently the NR_timer_t object through a pointer. Since we have
to modify all occurrences of is_nr_timer_active(), we use that occasion
and rename that function to nr_timer_is_active() to make it consistent
with all other functions, starting with nr_timer.
Reorganize the sequence of checks done in reestablishment to make it
more logical:
- check conditions of request (correct C-RNTI)
- check conditions of DU (has MIB/SIB1, MTC)
- check the UE, and from which DU it comes
This will also help to extend it towards reestablishment coming from
different DUs in the case of handover.
Before this bug fix, when using F1, we get this warning:
Constraint validation failed: LCID: constraint failed (/home/richie/openairinterface5g/cmake_targets/ran_build/build/openair2/F1AP/MESSAGES/F1AP_LCID.c:30)
This is because (1) we don't actually store the LCID, then (2) we did
not put it into the F1 ASN.1 structures. Fix both, to make this warning
disappear.
To actually print the full error message, increase the error buffer
size. Also, for the future, to avoid guessing, print ASN.1 XML when we
encounter a failed constraint validation.
It can happen that SCTP communication is simply lost, e.g.
[SCTP] SCTP_ASSOC_CHANGE to SCTP_COMM_LOST
[SCTP] sctp_recvmsg (fd 104, len -1 ): Connection reset by peer:104
The previous code only handled the SHUTDOWN event, but in abnormal
situations, we should also handle the connection state change and signal
to RRC that the endpoint is dead, which is now implemented.
The failure mode observed here was that the CU sent a release command
for a UE that the DU does not know. Given, that the outcome of the
release command (no UE) is equal to the current state (no UE), from
the DU point of view, we can safely ack the command.
- Save nas instance id in nr_ue_nas_t and use that for instance determination.
- Use correct field in itti message (destinationInstance instead of originInstance) to determine instance
- Make sure both destinationInstance and originInstance fields are correct in NAS interface functions.
While we don't have SIB19 support yet, UE gets this parameter from command line, just like --ntn-koffset and --ntn-ta-common.
We use this value to initialize the UE's time-tracking PI controller accumulator.
This allows to correctly track the time even if the delay is changing significantly (e.g. due to LEO satellite movement).
We also use it to compensate for the time drift that happenes while performing the initial sync.
* In LTE there is logic that checks the thread configurtion with the
getters `get_thread_parallel_conf()` and `get_thread_worker_conf()`
in NR these getters are not used, only setters, which have no impact
* buffer is allocated but not freed after use by PDCP
> Direct leak of 192 byte(s) in 3 object(s) allocated from:
> 0 0x7ffff74b4c38 in __interceptor_realloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:164
> 1 0x55555775ee74 in encode_dyn_cb /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/per_encoder.c:23
> 2 0x55555774776e in _uper_encode_flush_outp /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/uper_encoder.c:126
> 3 0x55555774776e in uper_encode /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/uper_encoder.c:36
> 4 0x555557747c91 in uper_encode_to_new_buffer /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/uper_encoder.c:85
> 5 0x5555576c5172 in do_NR_ULInformationTransfer /openair2/RRC/NR/MESSAGES/asn1_msg.c:965
> 6 0x555556fba691 in rrc_nrue /openair2/RRC/NR_UE/rrc_UE.c:1819
> 7 0x555556fc4d2e in rrc_nrue_task /openair2/RRC/NR_UE/rrc_UE.c:1717
> 8 0x7ffff5e94ac2 in start_thread nptl/pthread_create.c:442
* bcch_message is malloced by ASN.1 decoder and needs to be always freed after use along with its contents
> Direct leak of 64 byte(s) in 1 object(s) allocated from:
>0 0x7ffff74b4a57 in __interceptor_calloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:154
>1 0x555557737ecd in SEQUENCE_decode_uper /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/constr_SEQUENCE_uper.c:37
>2 0x555557746f81 in uper_decode /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/uper_decoder.c:83
>3 0x5555577471fe in uper_decode_complete /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/uper_decoder.c:16
>4 0x555556f8b1c9 in nr_rrc_ue_decode_NR_BCCH_DL_SCH_Message /openair2/RRC/NR_UE/rrc_UE.c:732
>5 0x555556fbc365 in rrc_nrue /openair2/RRC/NR_UE/rrc_UE.c:1775
>6 0x555556fc4c2e in rrc_nrue_task /openair2/RRC/NR_UE/rrc_UE.c:1718
>7 0x7ffff5e94ac2 in start_thread nptl/pthread_create.c:442
* local dl_dcch_msg shall be freed after use
> Direct leak of 384 byte(s) in 6 object(s) allocated from:
>0 0x7ffff74b4a57 in __interceptor_calloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:154
>1 0x555557737ced in SEQUENCE_decode_uper /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/constr_SEQUENCE_uper.c:37
>2 0x555557746da1 in uper_decode /cmake_targets/ran_build/build/openair2/RRC/LTE/MESSAGES/uper_decoder.c:83
>3 0x555556fa4b31 in nr_rrc_ue_decode_dcch /openair2/RRC/NR_UE/rrc_UE.c:1612
>4 0x555556fbb25c in rrc_nrue /openair2/RRC/NR_UE/rrc_UE.c:1792
>5 0x555556fc4a4e in rrc_nrue_task /openair2/RRC/NR_UE/rrc_UE.c:1718
>6 0x7ffff5e94ac2 in start_thread nptl/pthread_create.c:442
* The RRC task is freeing the ITTI message but the message members that are allocated separetely still need to be freed
> Direct leak of 470 byte(s) in 6 object(s) allocated from:
>0 0x7ffff74b4a57 in __interceptor_calloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:154
>1 0x55555721f117 in itti_malloc /common/utils/ocp_itti/intertask_interface.cpp:64
>2 0x555556f2356c in deliver_sdu_srb /openair2/LAYER2/nr_pdcp/nr_pdcp_oai_api.c:775
>3 0x555556f4e10e in nr_pdcp_entity_recv_pdu /openair2/LAYER2/nr_pdcp/nr_pdcp_entity.c:184
>4 0x555556f278ad in do_pdcp_data_ind /openair2/LAYER2/nr_pdcp/nr_pdcp_oai_api.c:285
>5 0x555556f278ad in pdcp_data_ind_thread /openair2/LAYER2/nr_pdcp/nr_pdcp_oai_api.c:307
>6 0x7ffff5e94ac2 in start_thread nptl/pthread_create.c:442
* allocate memory in heap for the struct ue_CapabilityRAT_Container used locally for buffer encoding
* free the struct members only for the ul_dcch_msg allocated on the stack
> Direct leak of 40 byte(s) in 1 object(s) allocated from:
> 0 0x7ffff74b4a57 in __interceptor_calloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:154
> 1 0x555556f7a89f in nr_rrc_ue_process_ueCapabilityEnquiry /openair2/RRC/NR_UE/rrc_UE.c:1861
> 2 0x555556fa4d85 in nr_rrc_ue_decode_dcch /openair2/RRC/NR_UE/rrc_UE.c:1650
> 3 0x555556fbb33c in rrc_nrue /openair2/RRC/NR_UE/rrc_UE.c:1790
> 4 0x555556fc4b2e in rrc_nrue_task /openair2/RRC/NR_UE/rrc_UE.c:1716
> 5 0x7ffff5e94ac2 in start_thread nptl/pthread_create.c:442
Robert Schmidt