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  1. 05 Mar, 2019 1 commit
  2. 27 Feb, 2019 1 commit
    • Cedric Roux's avatar
      bugfix: fix PDCP sequence management (plus some cleanup) · e3782b5c
      Cedric Roux authored
      With the introduction of X2AP into develop, the UEs now have to regularly
      send measurement reports.
      
      In the logs of the eNB, we see:
      
      [OSA]   Mismatch found in integrity for algorithm 2,
              got e0.a0.c2.66, expecting a5.9c.cb.57
      [PDCP]   [OSA][RB 1] eNB failed to validate MAC-I of incoming PDU
      
      This is a bug in the PDCP layer that uses wrong parameters to compute the
      integrity.
      
      This commit fixes this bug.
      
      The function pdcp_is_rx_seq_number_valid was removed. Its processing
      has been directly integrated into the function pdcp_data_ind.
      
      The function pdcp_mark_current_pdu_as_received is not called anymore.
      Its processing was not used later on, so as of today, not calling it does
      not introduce any functional change.
      
      The function pdcp_validate_security takes now as parameters both
      SN and HFN. Same for the function pdcp_get_next_count_rx.
      
      Useless constants PDCP_SN_5BIT, PDCP_SN_7BIT and PDCP_SN_12BIT have been
      removed.
      
      The compilation option ENABLE_SECURITY has been removed. It's now always
      on. (This may impact some use cases.)
      
      The PDCP for DRB using RLC AM is not correct. It was not correct before
      this commit (apart from the integrity bug). We should deal with a list
      of PDUs and transmit packets to upper layers as detailed in the specs.
      Today we transmit the PDU as soon as we get it. We don't care about
      duplicates, in-order delivery, timeouts.
      
      Also, we don't deal with "PDCP re-establishment". Not sure how that impacts
      the software.
      
      And, last but not least, there is still no ROHC.
      e3782b5c
  3. 25 Feb, 2019 1 commit
  4. 17 Feb, 2019 1 commit
  5. 12 Feb, 2019 1 commit
  6. 21 Jan, 2019 1 commit
  7. 07 Jan, 2019 1 commit
    • Cedric Roux's avatar
      fix a lot of file mode · aea6b4b5
      Cedric Roux authored
      For whatever reason most of the files had their permission
      changed from 644 to 755, which is not wanted.
      aea6b4b5
  8. 18 Dec, 2018 1 commit
  9. 21 Nov, 2018 1 commit
  10. 16 Nov, 2018 1 commit
  11. 13 Nov, 2018 3 commits
  12. 12 Nov, 2018 2 commits
  13. 08 Nov, 2018 1 commit
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  15. 31 Oct, 2018 1 commit
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  17. 17 Oct, 2018 1 commit
  18. 28 Sep, 2018 3 commits
  19. 24 Aug, 2018 2 commits
  20. 30 Jul, 2018 2 commits
  21. 13 Jul, 2018 1 commit
    • Bi-Ruei, Chiu's avatar
      Use an un-official community collaboration version of asn1c · a247907d
      Bi-Ruei, Chiu authored
      1. It's no need to modify LTE-RRC's ASN.1 file for enabling option group
         feature in generate_asn1.
      2. It's no need to patch the C header files generated from
         LTE-RRC/S1AP/X2AP's ASN.1 in fix_asn1.
      3. It's no need to pre-process S1AP/X2AP's ASN.1 for enabling information
         object class feature by asn1tostruct.py.
      
      This commit requires an un-official version of asn1c which are
      collaboration of asn1c community members and `build_helper` is modified
      in this commit accordingly :
      
        https://github.com/brchiu/asn1c/tree/velichkov_s1ap_plus_option_group
      
      This asn1c can also convert ASN.1 of 5G NR RRC (38.331, v15.1.0) and
      generate C files with -findirect-choice command line option without
      tweaking ASN.1 file.
      
      Examples for how to use this asn1c for S1AP are in S1AP files, e.g.
      s1ap_eNB_nas_procedures.c and s1ap_eNB_handler.c.
      
      There is an modified openair-cn (based on tag 0.5.0) with this new asn1c at :
      
        https://github.com/brchiu/openair-cn/tree/new-asn1c
      
      Basic S1AP interaction and data transfer operation between OAI eNB and
      this modified openair-cn has been tested.
      
      Note: Community version of asn1c is keeping evolved to provide better usage.
      a247907d
  22. 02 Jul, 2018 1 commit
  23. 25 Jun, 2018 1 commit
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  26. 08 Apr, 2018 1 commit
  27. 13 Feb, 2018 3 commits
  28. 27 Jan, 2018 1 commit
  29. 09 Jan, 2018 1 commit
  30. 08 Jan, 2018 1 commit