Commit Graph

74 Commits

Author SHA1 Message Date
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
2020-07-13 17:05:28 +02:00
Andre Puschmann 63f1ea1bec ttcn3: streamline DRB and SRB Tx interface
use the same tx interface with const uint8_t* and length byte instead of std::string
2020-06-29 13:45:42 +02:00
Daniel Willmann 7a25d1d300 Send the RRC_PDU_IND as JSON
Fixes: srslte_ttcn3#13, srslte_ttcn3#15
2020-06-29 13:45:42 +02:00
Andre Puschmann 2c5e159420 ttcn3_drb_interface: remove use of GetArray()
unfortunately, the rapidjson version shipped with Ubuntu 16.04
doesn't support the GetArray() API so we need to use
normal iterator to loop over the array
2020-06-23 12:12:58 +02:00
Andre Puschmann bf6ddbe976 ttcn3_drb_interface: use uint8_t and len as tx interface 2020-06-23 12:12:58 +02:00
Andre Puschmann 7f47edf67f fix issue where PDCP SDU was not going through UE stack to SS
this cause the PDCP echo reply not to appear in MAC/PCAP
2020-06-23 12:12:58 +02:00
Andre Puschmann 07f22326b4 pass current SS TTI when formatting DRB common IND 2020-06-23 12:12:58 +02:00
Daniel Willmann 0b88161b3c Send DRB PDUs as JSON to TTCN3 2020-06-23 12:12:58 +02:00
Daniel Willmann 31f1516d74 Use callback to establish connection before sending PDUs in TestmodeB 2020-06-23 12:12:58 +02:00
Daniel Willmann a3adba0081 Implement DRB establishment and handle rx/tx 2020-06-23 12:12:58 +02:00
Daniel Willmann 999de5f484 ttcn3_helpers: Add function to generate JSON for DRB PDUs 2020-06-23 12:12:58 +02:00
Daniel Willmann 0e99e2f6eb srsue: Refactor definition to live in its own .cc file 2020-06-02 10:05:38 +02:00
Francisco Paisana b8e6ba02e4 remove warnings related to unused vars and fwd declarations with trivial dtors 2020-04-27 22:19:08 +01:00
Francisco Paisana b506e29b72 removed common ce_typeenum 2020-04-24 11:55:53 +01:00
Xavier Arteaga 58803d1b3e Added UL EARFCN map and UE PHY interface cleanup 2020-04-23 09:00:45 +02:00
Francisco Paisana 6ddedd5972 moved pdu to common mac folder 2020-04-22 10:06:08 +01:00
Francisco Paisana c09f76ed6c unified stack task defer method 2020-04-10 22:30:59 +01:00
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
2020-04-10 21:18:43 +02:00
Andre Puschmann 451bbb20e8 ttcn3_ss: refactor AS security activation and use new timed call 2020-04-09 10:55:13 +02:00
Andre Puschmann 54a99d3f66 ttcn3_dut: add basic DRB handler skeleton
the handler is currently just listening on the designated port
and prints the received JSON string
2020-04-04 22:52:18 +02:00
Andre Puschmann 84d80f3e32 ss: use factory method to create PDCP config for SRB 2020-04-03 22:22:04 +02:00
Xavier Arteaga 25312e81b4 SRSUE: cell select RRC MEAS CFO is carried to PHY Cell object 2020-04-02 13:52:23 +02:00
Xavier Arteaga cbaba9c0bd Fix RRC and TTCN3 test 2020-04-02 13:52:23 +02:00
Francisco Paisana 30ae2226c1 common interface for stack multiqueue tasks, background tasks and timers 2020-03-31 13:42:06 +01:00
Andre Puschmann 9239bb14a6 ss: store current TTI in DL/UL grant struct
this fixes the TTI log in the PCAP generated by the UE
2020-03-30 11:23:40 +02:00
Andre Puschmann 5267a88d60 ttcn3_ss: remove unneeded NDI reset 2020-03-29 22:36:33 +02:00
Andre Puschmann 562b4ef6c8 ttcn3_ss: add missing timer stepping 2020-03-28 21:24:13 +01:00
Francisco Paisana 344eaf49ec use logmap in the whole enb and ue 2020-03-25 15:50:30 +00:00
Francisco Paisana 82cb6baef0 now the whole ue and enb mac uses the logmap 2020-03-20 11:32:03 +00:00
Xavier Arteaga e832769ae6 Updated copyright 2020-03-16 11:26:06 +01:00
Daniel Willmann 3a804e23fa ttcn3_sys_interface: Parse SIBs even when "StaticCellInfo" is missing
The test TC_9_2_1_1_1 sends a Cell->AddOrReconfigure->Basic message
without a "StaticCellInfo" member. This is used to change SIB1 of
the cell and simulate a different PLMN/TAC in the test.

handle_request_cell_basic() ignored the json message if "StaticCellInfo"
is missing which results in the SIB not being updated (PLMN stays as
00102 for example).
With this patch the SIBs after the json are now parsed even if there
"StaticCellInfo" is missing. A confirmation of the json is not sent
because the test does not seem to expect one in that case.

Related: TC_9_2_1_1_1
2020-03-15 18:27:51 +01:00
Daniel Willmann bc4e4ff97b ttcn3_ip_sock_interface.h: Don't respond to UDP/ICMP Close
A close request should not be responded to with a ctrl_cnf
2020-03-15 18:27:51 +01:00
Xavier Arteaga 76408b195e Rename TX_DELAY and FDD_HARQ_DELAY_MS 2020-03-11 21:16:36 +01:00
Xavier Arteaga e8f9bfc6ba Addition of PRACH TA correction 2020-03-11 16:25:56 +01:00
Pedro Alvarez 96c82b3fc6 Moved PDCP configs to pdcp_config.h. Added `as_security_cfg_t` structure to hold access stratum keys.
Refactored PDCP, RRC and USIM accordingly.
2020-03-11 09:00:38 +00:00
Daniel Willmann 1314b8f653 Implement override_lcid() function in ttcn3_sys_interface
Fixes: TC_7_1_1_1 (#6)
2020-03-09 11:56:54 +01:00
Andre Puschmann e7c10270fa ttcn3_ss: fix security activation for PDCP 2020-03-01 18:26:45 +01:00
Andre Puschmann 5a03eaed2b ss: move timing_info_t to ttcn3_helpers, fix PDCP count handling 2020-03-01 18:26:45 +01:00
Andre Puschmann 72c5b381e4 fix bug when parsing cipher algo config for SS 2020-03-01 18:26:45 +01:00
Andre Puschmann 8a69772ebc rewrite packing of DL PDU in SS
the new algo tries to write more than just one RLC PDU inside a MAC PDU
if this is possible
2020-03-01 18:26:45 +01:00
Andre Puschmann e919c57a32 add handling of FollowOnFlag from tester 2020-03-01 18:26:45 +01:00
Andre Puschmann 89d5876470 add TimingInfo support for remaining SS commands 2020-02-28 18:09:21 +01:00
Andre Puschmann 81e28aa9dc add basic support for TimingInfo field from tester
this fixes an issue where commands are received out of
order and we are therefore applying configs incorrectly. if
commands include a timinginfo we are now putting the command
on a queue that the SS reads after the start of a new TTI.

the security and cell reconfig commands will be added in another
PR after the AS_security command has been fixed.
2020-02-27 21:27:43 +01:00
Andre Puschmann 55a5947df7 add default init to TTCN3 syssim to prevent segfault when tc_start isn't received 2020-02-26 12:20:23 +01:00
Andre Puschmann 39f2011699 fix issue in SS where Msg4 wouldn't be sent because ConnectionSetup is provided too late 2020-02-25 21:28:15 +01:00
Andre Puschmann b88e877b4c ttcn3: make SS single threaded and use SCTP for test ports
- remove all threading from SS
- use epoll to handle test port connections, signals, and timers
- convert testport interface to SCTP
2020-02-25 21:28:15 +01:00
Francisco Paisana 22f51bb30b made cell select non-blocking using background threads 2020-02-18 09:47:33 +01:00
Andre Puschmann 701e4aa6be fix bug causing segfault when UE wasn't initialized 2020-02-15 19:33:25 +01:00
Andre Puschmann b15cd3fdaa add error handling to TTCN3 socket handlers 2020-02-15 19:33:25 +01:00
Andre Puschmann 42920d508f fix SS debug output 2020-02-15 19:33:25 +01:00