T: macpdu2wireshark: dump to file instead of sending UDP packets
In NR with several layers, we may have MAC PDU of size bigger than 64KB,
which does not fit into a UDP buffer, destroying macpdu2wireshark.
Let's add an option to dump to a pcap file instead of using UDP packets.
The DLT 252 magic is used (check wireshark documentation to understand).
Run macpdu2wireshark with -h to see how to configure wireshark to read
the produced files.
several fixes and cleanup for nrLDPC_coding_t2
Newer DPDK driver versions may directly provide the internal HW mbuf in the
dequeued structure. So don't try to free the mbufs from that dequeued structure,
but the ones we allocated. Also, this mbuf has an offset to its output data, we
must consider this when accessing the output data.
Main contents of this MR:
- support newer DPDK versions
- make sure to free allocated mbufs
- fix q_bufs memory leak
- use rte_pktmbuf_mtod_offset() to consider offset when accessing output data
- convert the correct number of LLRs from 16 Bit to 8 Bit
- remove unused variables and functions
- some more code cleanup
ntn-UlSyncValidityDuration in SIB19 from Spec 38.331 v17.12
A validity duration configured by the network for assistance information which indicates the maximum time duration
(from epochTime) during which the UE can apply assistance information without having acquired new assistance information.
The unit of ntn-UlSyncValidityDuration is second. Value s5 corresponds to 5 s, value s10 indicate 10 s and so on.
ntn-UlSyncValidityDuration-r17 ENUMERATED{ s5, s10, s15, s20, s25, s30, s35,s40, s45, s50, s55, s60, s120, s180, s240, s900}
Implementation of epochtime is under discussion.
It can be configured in configuration file according to the above enumeration. For GEO - 240s, MEO - 20s, LEO-5s can be used.
In NR with several layers, we may have MAC PDU of size bigger than 64KB,
which does not fit into a UDP buffer, destroying macpdu2wireshark.
Let's add an option to dump to a pcap file instead of using UDP packets.
The DLT 252 magic is used (check wireshark documentation to understand).
Run macpdu2wireshark with -h to see how to configure wireshark to read
the produced files.
This change adds lengths checks to the received registration reject
message and also performs a bounds check for the received cause.
Since the cause is not checked, any string in the memory can be
dereferenced, possibly leading to DoS.
Signed-off-by: Eduard Vlad <eduard.vlad@rwth-aachen.de>
The change addresses the SM message type retrieval for DL NAS Transport
messages. The assumption of an offset 17 = 7 (MM Sec) + 3 (MM Plain) + 1
(IEI) + 2 (Len) + 4 (SM) is correct.
However, if the DL NAS Transport is received in a plain header, the
lengths would not add up anymore. (This is not complying with the
standard, so not allowed, but possible). The check for the length is
necessary to not process arbitrary memory contents beyond the
`pdu_buffer`.
Signed-off-by: Eduard Vlad <eduard.vlad@rwth-aachen.de>
The DPDK driver may directly provide the internal HW mbuf in the dequeued structure.
So don't try to free the mbufs from that dequeued structure, but the ones we allocated.
Integration: `2025.w20`
Closes#826 and #884
See merge request oai/openairinterface5g!3438
* !3168 Improvements for LDPC encoding
* !3386 E1 Bearer Context Release enc/dec lib and unit test
* !3394 Fix Liteon with MTU 1500 and update the FHI docs
* !3437 CI: RFsim F1/HO: Use hanging-workaround to avoid blocking of second client
* !3384 Add enc/dec library and unit test for E1 Bearer Context Modification Failure
* !3418 Use common function to generate CSI-RS signal
* !3379 Add physim tests into ctest framework
* !3420 Added intercommunication between namespaces
* !3422 Tutorials: updates for NR SA Tutorials
* !3436 Beam switching small fixes
* !3439 Fix RRC resources periodicity determination according to number of slots per period
* !3434 Remove EPC/UE main.py parameters
* !3423 Fix PDSCH and PUSCH BWP Start and Size when PXSCH is scheduled with a DCI format x_0 in any type of PDCCH common search space
* !3442 Fix UL chanel estimates mapping in 2-layer MMSE receiver
Fix UL chanel estimates mapping in 2-layer MMSE receiver
This MR addresses a degradation in UL throughput observed in 4x4 MIMO
tests, starting from 2025.w17.
The issue was traced to incoherent indexing in the ul_ch_estimates_ext
when handling 4-antenna UL configurations.
Fix PDSCH and PUSCH BWP Start and Size when PXSCH is scheduled with a DCI format x_0 in any type of PDCCH common search space
- Fix PDSCH and PUSCH BWP Start and Size when PDSCH/PUSCH is scheduled
with a DCI format x_0 in any type of PDCCH common search space
- Fix resource block assignment information (RIV field) for DCI format
x_0 when scheduling in any type of PDCCH common search space
Fix RRC resources periodicity determination according to number of slots per period
Otherwise we may end up in scenarios where some channels would end in
the wrong TDD slot type
Tutorials: updates for NR SA Tutorials
- Update links for the latest Ubuntu 24.04.2 LTS iso file
- Update docker install to the latest instructions on the official
website
- Update UHD to v4.8.0.0
- Add support for 'default'/"empty" DNN to CN5G configuration file
* Add support for 'default' DNN to CN5G configuration file (that
will also be used when DNN is not available, "empty" DNN). This
configuration will allow most of the COTS UE to get PDUSession
without any APN configuration made by the user
* The 'default'/"empty" DNN configuration support was added in
oai/cn5g/oai-cn5g-amf!343
francescomani