With contributions from
* Sakthivel Velumani <velumani@eurecom.fr>
* Robert Schmidt <robert.schmidt@openairinterface.org>

Squashed commit of the following:

commit e8488acb
Merge: f09468eb 5d58645a
Author: laurent <laurent Thomas>
Date:   Sat Jan 21 15:03:40 2023 +0100

    merge develop

commit f09468eb
Author: laurent <laurent Thomas>
Date:   Fri Jan 20 10:43:51 2023 +0100

    continue e1AP development

commit 76545cfb
Author: laurent <laurent Thomas>
Date:   Wed Jan 18 14:18:47 2023 +0100

    fix regressions after merge develop

commit 7071c480
Merge: 569b9fc5 214aa505
Author: laurent <laurent Thomas>
Date:   Mon Jan 16 15:51:50 2023 +0100

    merge develop

commit 569b9fc5
Author: laurent <laurent Thomas>
Date:   Wed Jan 4 17:07:01 2023 +0100

    fix srb2 addition, simplify and remove dead code, fix one race

commit 9fa89151
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Wed Jan 4 20:02:05 2023 +0530

    Bearer context release decoder and encoder

commit 7011cb51
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Wed Jan 4 13:43:58 2023 +0530

    Update documentation

commit 3e8899fc
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Wed Jan 4 10:14:11 2023 +0530

    Fix function arguments and warnings

commit 989ad183
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Jan 3 20:18:31 2023 +0530

    Moved E1-design.md to doc/

commit 04a8633d
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Jan 3 20:13:46 2023 +0530

    Make libraries lower case in CMakeLists

commit 033ec174
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Jan 3 17:55:25 2023 +0530

    Renamed and updated cucp cuup config files

commit f76a6913
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Jan 3 13:31:19 2023 +0530

    Removed CU-UP checks from nr-softmodem

commit ae70afe4
Author: laurent <laurent Thomas>
Date:   Mon Jan 2 13:01:45 2023 +0100

    fix for gcc version hat doesnt accept declarations in switch

commit 6a7a0104
Author: laurent <laurent Thomas>
Date:   Tue Dec 27 15:59:28 2022 +0100

    first functional commit standalone cu-up

commit 0caa4690
Merge: 3619f955 1a0c0cd1
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Fri Dec 23 14:21:00 2022 +0530

    Merge remote-tracking branch 'origin/develop' into e1-implementation-wip

commit 3619f955
Merge: 1bcf8d5e cfe698eb
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Wed Dec 21 15:47:40 2022 +0530

    Merge remote-tracking branch 'origin/develop' into e1-implementation-wip

commit 1bcf8d5e
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Sep 13 02:10:34 2022 -0400

    Fix GTP rnti to ue_id after rebase

commit 23075ff8
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Sep 6 00:32:12 2022 -0400

    Added documentation

commit 28f6e507
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Mon Sep 5 15:02:02 2022 -0400

    Header cleaups and unitary simulators build fixes

commit e665dbab
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Thu Sep 1 17:52:07 2022 -0400

    Common interface between CUCP & CUUP for E1 and non E1 modes

commit 5dcc1bf5
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Thu Sep 1 13:53:49 2022 -0400

    Allocate stack where ever possible
    Free memory after ASN encode

commit 793a5379
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Thu Sep 1 10:41:50 2022 -0400

    Fixes for build issues

commit 0d3564f2
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Wed Aug 31 20:57:14 2022 -0400

    Fixed uesoftmodem linkage error

commit 34adf865
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Wed Aug 31 19:31:50 2022 -0400

    Removed RRC thread from CUUP

commit 53674191
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Wed Aug 31 14:21:31 2022 -0400

    Add header guard in one of E1AP header

commit 22e9d9b6
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Wed Aug 31 14:00:47 2022 -0400

    Fix bug in PDCP ue_id

commit 4c65339b
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Aug 30 18:04:59 2022 -0400

    Linked E1AP lib to L2_NR target
    E1AP builds for nr-softmodem

commit 014fe30a
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Aug 30 15:49:27 2022 -0400

    Remove xer prints from e1ap
    and gcc warning fixes

commit 71f0c912
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Aug 30 15:42:30 2022 -0400

    Fixed bug in integrity protection config

commit 4e393ef9
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Aug 30 14:34:37 2022 -0400

    GTP init with only local address
    IP traffic works both directions in Mono, F1 and E1

commit ec3bde2c
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Aug 30 00:16:03 2022 -0400

    Fix bug in pdcp config and GTP instance
    UL iperf still not works. Can see packets in wireshark.

commit be8df443
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Sat Aug 27 20:15:04 2022 -0400

    Fixes in node config after rebase

commit 6f42ff88
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Sat Aug 27 01:38:21 2022 -0400

    Added N3 tunnel address in config params
    fixed bug in address length feild

commit b5e13204
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Fri Aug 26 20:38:47 2022 -0400

    Send UL UP address via F1 UE cxt mod msg

commit ecfd0fe2
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Fri Aug 26 15:08:53 2022 -0400

    Update GTP remote address from response message
    Modified GTP tunnel update function accordingly
    Put GTP tunnel update out of F1AP
    F1 split works

commit 14a37e41
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Sat Aug 20 01:17:36 2022 -0400

    Moved GTP tunnel creation out of F1AP message sending

commit cdd58ab9
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Fri Aug 19 17:40:43 2022 -0400

    Moved DRB config out of RRCReconfig complete
    Monolithic and F1 split works

commit 61d66e49
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Thu Aug 11 01:30:10 2022 -0400

    Allow CUUP to have RRC inst without error

commit dd7ae889
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Thu Aug 11 01:29:21 2022 -0400

    Added missing IEs in bearer cxt response handler

commit a6f1fe5f
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Wed Aug 10 21:02:30 2022 -0400

    Unified bearer context message transfer for E1 and non-E1 mode
    compiles, to be tested

commit f245ace2
Author: laurent <laurent Thomas>
Date:   Tue Aug 9 17:46:52 2022 +0200

    remove log_i() of fatal errors

commit d2a0f3c8
Author: laurent <laurent Thomas>
Date:   Fri Aug 5 15:01:39 2022 +0200

    fix rnti/ue_id for ue

commit 7b52c6cd
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Thu Aug 4 19:14:46 2022 -0400

    Created separate functions in PDCP for E1 mode

commit 46680d2b
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Thu Aug 4 19:13:10 2022 -0400

    Bug fixes in bearer context setup response

commit 3d091bfd
Author: laurent <laurent Thomas>
Date:   Thu Aug 4 15:42:11 2022 +0200

    add missing file from previous commit

commit 21838572
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Wed Aug 3 16:59:16 2022 -0400

    Minor bug fixes

commit 34eb73fb
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Aug 2 23:16:47 2022 -0400

    Added config files for testing
    To be renamed or removed later

commit a7e9c6fb
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Aug 2 23:15:21 2022 -0400

    Made rrc_gNB_get_ue_context_from_ngap_ids() non static

commit 028f0407
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Aug 2 23:12:16 2022 -0400

    Completed bearer context setup cycle
    To be tested: Handling of bearer context setup response and subsequent UE context modifition msg to F1AP task

commit 4481d113
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Aug 2 23:01:50 2022 -0400

    Fixed E1AP PPID (wireshark fixed)

commit 7a22573f
Author: laurent <laurent Thomas>
Date:   Fri Jul 29 13:03:31 2022 +0200

    fix compile issues, simplify gtp send function

commit 0209011a
Author: laurent <laurent Thomas>
Date:   Thu Jul 28 11:51:18 2022 +0200

    restore compilation capability, gtp replacement of rnti by ueid

commit ce3b886f
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Fri Jul 22 08:35:31 2022 -0400

    Included missing IEs in bearer cxt setup message

commit 1208ae0d
Author: Cedric Roux <cedric.roux@eurecom.fr>
Date:   Tue Jul 19 10:53:35 2022 +0200

    replace rnti by ue_id in pdcp

    some sdap and gtp files had to be touched, the work is not finished in there

    some changes in nr_pdcp_oai_api.c simply assume ue_id is indeed rnti
    (will functions in this file be used by cu-up?)

commit e67d1c88
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Jul 19 10:08:39 2022 +0200

    Replace RNTI with UE ID in GTP files
    (half done. Laurent to change ctxt_t)

commit 7a141e8e
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Jul 19 10:04:15 2022 +0200

    Added RRC handler for bearer cxt setup in CUUP

commit fe210667
Author: laurent <laurent Thomas>
Date:   Mon Jul 11 13:30:30 2022 +0200

    fix race in startup procedure (config before starting threads that use the config)

commit 3197baab
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Sun Jul 10 11:30:31 2022 +0200

    Fixed bugs in bearer creation

commit 26be6116
Author: laurent <laurent Thomas>
Date:   Sun Jul 10 10:50:57 2022 +0200

    fix a race, add asn1c debug method

commit 26750d18
Author: laurent <laurent Thomas>
Date:   Wed Jul 6 22:34:10 2022 +0200

    e1ap bearer setup encoding invalid

commit d092788a
Author: laurent <laurent Thomas>
Date:   Wed Jul 6 14:18:39 2022 +0200

    fix regression with F1, some basic cleaning in NGAP

commit 41a13573
Author: laurent <laurent Thomas>
Date:   Wed Jul 6 11:24:52 2022 +0200

    fix some ngap regressions

commit 460acd84
Author: laurent <laurent Thomas>
Date:   Tue Jul 5 21:19:13 2022 +0200

    build, run in F1 mode until UE connect but pdu session still fails

commit 7c067095
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Sat Jun 25 22:45:46 2022 +0530

    Populate PDU and DRB paramenters from NGAP

commit c4ada56a
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue Jun 7 22:16:58 2022 +0530

    setup resp decoding success

commit a2f41597
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Sat Jun 4 13:50:55 2022 +0530

    Fixed bugs in E1 setup procedure
    E1 setup request decoding successful

commit 6106207b
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Thu May 26 20:13:14 2022 +0530

    Fixing build issues

commit 67235fac
Author: Robert Schmidt <robert.schmidt@openairinterface.org>
Date:   Mon May 23 12:04:22 2022 +0200

    Make nr-softmodem depend on E1AP module

commit 391cee93
Author: Robert Schmidt <robert.schmidt@openairinterface.org>
Date:   Mon May 23 11:57:15 2022 +0200

    Fix ITTI errors in E1AP target

commit db4146e4
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Wed May 18 06:59:03 2022 +0530

    CP UP task created

commit 3058d2fc
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue May 10 08:12:19 2022 +0530

    Bearer context setup response message

commit b911e9db
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Tue May 3 16:52:49 2022 +0530

    Bearer context setup c structs

commit d0f4d5f3
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Thu Apr 28 02:21:50 2022 +0530

    Bearer context setup message

commit 489a5358
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Thu Apr 21 10:11:03 2022 +0530

    Started with CUUP task

commit b416061f
Author: Sakthivel Velumani <velumani@eurecom.fr>
Date:   Fri Apr 15 18:46:27 2022 +0530

    Setup request and response messages

commit faca4b97
Author: Robert Schmidt <robert.schmidt@openairinterface.org>
Date:   Mon Apr 11 15:01:48 2022 +0200

    Fixup for cmake execution

commit ecfd9f76
Author: Robert Schmidt <robert.schmidt@eurecom.fr>
Date:   Tue Nov 24 21:39:20 2020 +0100

    Move CMakeLists.txt into root

commit 9f41f7c5
Author: Robert Schmidt <robert.schmidt@openairinterface.org>
Date:   Tue Apr 12 12:07:18 2022 +0200

    Remove hwlat refs in build_oai: targets don't exist anymore

commit e666cf5e
Author: Robert Schmidt <robert.schmidt@openairinterface.org>
Date:   Mon Apr 11 14:37:32 2022 +0200

    Create CMake E1AP_RELEASE variable from E1AP_VERSION

commit 1f841336
Author: Robert Schmidt <robert.schmidt@openairinterface.org>
Date:   Sun Apr 10 14:25:38 2022 +0200

    Add E1AP lib

commit 7465cea4
Author: Robert Schmidt <robert.schmidt@openairinterface.org>
Date:   Sun Apr 10 14:48:40 2022 +0200

    Add E1AP Grammar and build ASN.1 lib at build time

commit cde22f83
Author: Robert Schmidt <robert.schmidt@openairinterface.org>
Date:   Fri Apr 22 13:42:51 2022 +0200

    Accept higher vers. nums in make_version/MAKE_VERSION

commit d5127b23
Author: Robert Schmidt <robert.schmidt@eurecom.fr>
Date:   Tue Nov 24 21:39:20 2020 +0100

    Move CMakeLists.txt into root