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287 Commits (37ee8bcf461e167b5c0d601e7cd3f8088a3c44d4)

Author SHA1 Message Date
Andre Puschmann b616944a13 ue,rrc: fix security config during HO/reestablishment 
we fix a number of very related issues for HO/reestablishment
in the success/error case:

* this patch removes the hard-coded check that intra-cell HO aren't
allowed. There are cases where eNBs use this method to update
the security context.

* the patch also fixes an issue after failed HO where the security context
of the source eNB should be used for the reestablishment.

* update security keys according to specs when mobilitycontrol
indicated change of key
 4 years ago
Andre Puschmann 6827c2df21 rrc_meas: disable layer3 filtering until quantity config is received 
the filter alpha was initialized to zero by default which causes an
issue because the first measurement for a cell can't be updated,
because the filtering function will always return the current value.

According to 36.331 Sec 5.5.3.2 Note 2, a k-value of 0 should turn
off filtering, which should be used as the default value until
an update is received from the network.
 4 years ago
Ismael Gomez f49fbd6d02
Fix the order of HO/reest measurement actions (#1696) 4 years ago
Andre Puschmann aec18a93d1 mux,bsr: refactor UL buffer status reporting 
this patch fixes the UL BSR as per TS 36.321, it includes following
main changes:

* report UL buffer state to reflect the UEs transmit buffer after
  the MAC UL PDU containing the BSR has been built.
  In other words, if the UE, for example, can transmit all outstanding
  data in an UL grant, it will not report any pending data to transmit.

* refactor MUX routines and subheader space calculation
 4 years ago
Ismael Gomez 06a5bdaab2 Process all calls to RLF in the main RRC task 4 years ago
Francisco Paisana 92221eb780 update of rrc_interface_mac to remove signal from mac to rrc that RA failed in case of handover failure 4 years ago
Francisco Paisana fca1273b3e avoid spurious warnings of trying to start the PRACH when it is already running during handover 4 years ago
Francisco Paisana fddcc3d8ea In the case of Handover, postpone the activation of the CQI and SR config present in the HO command for after the RA proc completion to the target eNB 4 years ago
Francisco Paisana 5242f9422b fix deadlock in handover 4 years ago
Francisco Paisana 834c0b3929 integrated new observer pattern into phy controller fsm 4 years ago
Francisco Paisana 48dd436d86 integrated observer pattern into rrc phy ctrl fsm 4 years ago
Francisco Paisana b1670c005b remove shadowed variables for reestablishment during handover 4 years ago
Francisco Paisana 8d10aa906e move defer_task to switch case in the rrc 4 years ago
Xavier Arteaga 4e1e8cea1a SRSUE: MAC HARQ entities vector is fixed 4 years ago
Francisco Paisana 4fb8011a6d updated phy controller to use task scheduler 5 years ago
Francisco Paisana 9c5471b094 more ergonomic event callback 5 years ago
Francisco Paisana 58a9610efa use of stack event loop to propagate cell search and selection results 5 years ago
Francisco Paisana d48a45976e moved cell selection/search complete event signalling out of phy_controller 5 years ago
Francisco Paisana 48138b5281 removal of phy cell selection procedure as it now it is replaced by phy controller 5 years ago
Francisco Paisana 489969722e implemented phy controller FSM to perform cell selection & search. The controller also tracks the phy sync state 5 years ago
Andre Puschmann a7911f0dab pdcp,rlc: refactor SDU queueing policy 
this patch refactors the SDU queuing and dropping policy of the RLC and PDCP layer.
the previous design had issues when packets have been generated at a higher
rate above the PDCP than they could be consumed below the RLC.

When the RLC SDU queues were full, we allowed two policies, one to block on the write
and the other to drop the SDU. Both options are not ideal because they either
lead to a blocking stack thread or to lost PDCP PDUs.

To avoid this, this patch makes the following changes:

* PDCP monitors RLC's SDU queue and drops packets on its north-bound SAP if queues are full
  * a new method sdu_queue_is_full() has been added to the RLC interface for PDCP
* remove blocking write from pdcp and rlc write_sdu() interface
  * all writes into queues need to be non-blocking
  * if Tx queues are overflowing, SDUs are dropped above PDCP, not RLC
* log warning if RLC still needs to drop SDUs
  * this case should be avoided with the monitoring mechanism
 5 years ago
Francisco Paisana 5e06430455 removal of stack handler interface 5 years ago
Francisco Paisana 7c364070ee creation of task scheduler interface for classes/functions running outside the main control thread 5 years ago
Francisco Paisana 039977aeb5 renamed interfaces 5 years ago
Francisco Paisana 1a9c04bf2f use of task scheduler handle in pdcp 5 years ago
Francisco Paisana 4f5e65781f created task scheduler class to deal with timers, thread pool, multiqueue, internal tasks 5 years ago
Francisco Paisana 8c920837d6 fix issue when adding neighbour cell that matches serving cell 5 years ago
Francisco Paisana d746115130 moved serving cell to meas_cell_list 5 years ago
Francisco Paisana 928459408e fix cell meas sorting issue 5 years ago
Francisco Paisana d2dd30c8cb rrc_meas_test failing 5 years ago
Francisco Paisana 9a1f69113f created class for managing neighbor cells of rrc 5 years ago
Francisco Paisana 069dc1f751 moved cell struct of srsue::rrc to separate file 5 years ago
Andre Puschmann bd0c13aad0 ue_stack: bump priority of stack thread 
the stack thread should really run with the next highest priority after
sync + phy workers to make sure it gets enough CPU
 5 years ago
Francisco Paisana d12b037e0d make cell reselection periodic and with period of 20msec 5 years ago
Francisco Paisana c6f422d23e improved cell selection test in srsue::rrc 5 years ago
Francisco Paisana 3e016b8095 select serving cell during cell selection if it is stronger than neighbors 5 years ago
Ismael Gomez e378a45db0 Reorganized priorities to avoid GW starve the CPU 5 years ago
Andre Puschmann a5c0f96fa7 srsue: limit sync queue length to 1 for ZMQ radio 
apply same change that we've done on the eNB also on the UE
to avoid the PHY processing TTIs faster than the stack.

Without that, we see lots of those in the logs:

...
08:39:17.580325 [STCK] [W] Detected slow task processing (sync_queue_len=7).
...
 5 years ago
Andre Puschmann e981d5ee70 rrc,ue: refactor wait conditions before transition to RRC idle 
before entering RRC idle, after receiving a RRC connection release for example,
we need to wait until the RLC for SRB1 or SRB2 have been flushed, i.e.
the RLC has acknowledged the reception of the message.

Previously we have only waited for SRB1 but the message can also be received on SRB2
and in this case both bearers need to be checked.

The method is now streamlined to check both SRBs and is also used when
checking the msg transmission of an detach request.
 5 years ago
Francisco Paisana fddcbc9879 fix vnf-ue stack interface 5 years ago
Daniel Willmann 31f1516d74 Use callback to establish connection before sending PDUs in TestmodeB 5 years ago
Francisco Paisana f0874b780b add radio_base/null classes 5 years ago
Ismael Gomez 54b331c504
Adds best neighbour to CSV and stdout metrics (#1440) 5 years ago
Xavier Arteaga de230826b9 Added string helper for removing spaces and parsing list 
Fix

Fix string parser
 5 years ago
Francisco Paisana 81848deae2 extended handover procedure to accommodate all the handover (phy cell select + ra) 5 years ago
Francisco Paisana 556fcb69e7 fix handover my defering to next tti the reestablishment of bearers 5 years ago
Francisco Paisana 37ce475398 fix+refactor of the ue rrc handover preparation procedure to avoid deadlocking 5 years ago
Francisco Paisana 8f4f37e89b remove more unused rrc variables 5 years ago
Francisco Paisana 29fd147d41 remove unused rrc variables 5 years ago
Francisco Paisana b2aae8763b made mac_nr and rrc_nr final to avoid using virtual dtors 5 years ago
Francisco Paisana 452c043370 created a global map of lcids to srbs/drbs for NR 5 years ago
Francisco Paisana 4cf756434f add srsue::rrc_nr srsue::ue_stack_nr 5 years ago
Francisco Paisana 6a164e032d added srsue::rrc_nr 5 years ago
Francisco Paisana edba7f57e4 corrected mac_nr_pdu includes 5 years ago
Francisco Paisana 0b701022a3 added ue nr mac 5 years ago
Ismael Gomez b5ccbf1891 Simplify relationship between BSR, SR and RA procedures. Fix issue #1346 5 years ago
faluco 9efa24bfa9 More warning fixes. 5 years ago
faluco 7ff251f112 - Fixed warnings caught by Clang 9.0.0 5 years ago
Pedro Alvarez 2ea78c8feb Added configuration options for stack logging. 5 years ago
Francisco Paisana de4d58d8fe fix coverity scan issues in master 5 years ago
Francisco Paisana af9ca9f9e5 remove unecessary moves 5 years ago
yagoda 8e0b106c22 fixing some warnings from LGTM 5 years ago
Xavier Arteaga 89dcd6339f More LGTM fixes 5 years ago
Xavier Arteaga 77d5dedddc Fix LGTM warnings and recommendations 5 years ago
Francisco Paisana 6ddedd5972 moved pdu to common mac folder 5 years ago
Francisco Paisana c09f76ed6c unified stack task defer method 5 years ago
Andre Puschmann d35c9e2b89 nas: add support ot UE test loop mode B 
extend GW-NAS interface to signal test mode activation.
The method is a noop in the normal GW but is implemented in
the TTCN3 DUT according to TS 36.509 for Mode B
 5 years ago
Andre Puschmann 66a799661e gw,tft: move traffic flow template matching into own class 
this prepares the reuse of the matching functions for the TTCN3 DUT.
create own matcher class that the GW uses.
 5 years ago
Francisco Paisana a2ade9edd1 break down rrc_interface_types.h into multiple files. moved pdcp_config.h to same folder 5 years ago
Daniel Willmann 925225dbeb Implement Close UE Test Loop/Complete messages 
This commit implements support for the CLOSE_UE_TEST_LOOP message.
Currently the mode is not saved and looping the data is not implemented.
Only the *_COMPLETE message is sent back as a response.
 5 years ago
Andre Puschmann acc2948b45 nas: fix security handling 
First of all, with this the NAS conformance tests pass with ciphering and
integrity turned on. Before only integrity was working.

Mainly the NAS was applying the integrity protection and/or ciphering
incorrectly because it wasn't taking the secuirty status of the PDUs
into account. Some where already correct, some not. The patch
streamlines the handling for all outgoing messages.
 5 years ago
Xavier Arteaga 25312e81b4 SRSUE: cell select RRC MEAS CFO is carried to PHY Cell object 5 years ago
Xavier Arteaga 051e8fcc52 SRSUE: Apply default PHY config to SCell as well 5 years ago
Xavier Arteaga 6d355ab61e SRSUE: Fix HO initial CFO 5 years ago
Francisco Paisana 30ae2226c1 common interface for stack multiqueue tasks, background tasks and timers 5 years ago
Andre Puschmann 62e4bd9469 log_ptr: fix issue if accessing log_ptr that was reset already 
during deinit of the UE/eNB it could happen that the log_ptr
was already set to null but the stack thread was still accessing
it through log_h->info()

i've moved the old macro into a new header and used as as much
as possible. there are still places in the code where similar
macros are used but we would need to change the variable name
to replace them
 5 years ago
Andre Puschmann dbb8b6a360 nas: add helper for entering new state in FSM 
the helper will log the event
 5 years ago
Andre Puschmann d8680cc9a8 nas: add helper to pack attach request and send to RRC 5 years ago
Andre Puschmann cf28276a3a nas: add helper function to reset NAS security context 5 years ago
Andre Puschmann 94c6034339 nas: rename start_attach_request to start_attach_proc 
this is to better differentiate from "send_attach_request" that
only packs and send the actual attach request message. The
entire attach procedure may include PLMN search, etc.
 5 years ago
Andre Puschmann 15c47fab56 nas: adding t3402 to restart attach after initial attach attempt counter expired 5 years ago
Andre Puschmann 7ef56cb637 nas: add an attach attempt counter as described in 24.301 5 years ago
Francisco Paisana 599588ff51 removed uneeded locks in the rlc, moved ue stack get_metrics to stack thread, solved the idle procedure double-locking 5 years ago
Ismael Gomez 95c6916987
Improve robustness in RF Overflow (#1124) 
* Use task id to track old background tasks in RA procedure

* Improve robustness against RF overflow in PHY

* Increase SNR out-of-sync threshold

* Do not change frequency if it's the same

* Increase sync priority

* Increase time to start receiving to reduce input buffer occupation

* Use scoped lock in sf_worker
 5 years ago
Francisco Paisana 8e837e173d printf has already a way to pad spaces. If we use it, we can avoid accidentally adding extra logs because we did srslte::logmap::get("MAC") instead of srslte::logmap::get("MAC ") 5 years ago
Francisco Paisana aeed623734 removed pdu processing from the ue rrc cmd queue. Instead, now the rrc processes the incoming pdus right away. This is essential to fix the security cmd issue in the ue 5 years ago
Andre Puschmann b9a2217355 fix uninit vars reported by Coverity 5 years ago
Andre Puschmann 3f10224729 refactor airplane mode simulation and move to NAS 
- move handling to NAS
- use switch off to enable airplane mode (don't wait for EPC response)
- add tiny FSM to control airplane mode activation/deactivation
- only start on/off counter after state has been entered
 5 years ago
Francisco Paisana e91a7ea513 removed stack-mac interface dedicated methods. We use now the task dispatch methods instead 5 years ago
Francisco Paisana de03c96c3b mac::process_pdus now uses the stack task dispatch interface 5 years ago
Francisco Paisana 7f6bde59fc move write_pdu_pcch and write_pdu_bcch_bch to stack thread 5 years ago
Francisco Paisana de3c28e52d added task dispatch capabilities to stack interface 5 years ago
Francisco Paisana 46a1be3e76 updated mac-rlc interface to use unique_byte_buffer 5 years ago
Francisco Paisana 82cb6baef0 now the whole ue and enb mac uses the logmap 5 years ago
Francisco Paisana 45bc123967 remove manual tti counters from the rrc 5 years ago
Francisco Paisana 138347b6b5 nas using stack timers 5 years ago
Francisco Paisana 770f04b92a the rrc now only works with the stack latest tti, instead of mac's tti 5 years ago
Francisco Paisana e3e5b5be11 removed tti from some mac subcomponent interfaces 5 years ago
Francisco Paisana d3f49d0e3c changed interface sync-stack to allow tti jumps > 1 5 years ago
Francisco Paisana e73cbb09b0 created tprof statistic for sliding windows 5 years ago