Merge branch 'Release-v1.4.0' into 'master'

Release v1.4.0 See merge request oai/cn5g/oai-cn5g-smf!138

Merge branch 'Release-v1.4.0' into 'master'
Release v1.4.0 See merge request oai/cn5g/oai-cn5g-smf!138
b83ff606 · sagar arora · a69c3de7 · baff3d96 · b83ff606 · b83ff606
Commit b83ff606 authored Jul 06, 2022 by sagar arora
36 changed files
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
 # RELEASE NOTES: #
+## v1.4.0 -- July 2022 ##
+* Fix for handling S-NSSAI 
+* Add support for IMS
+* HTTP/2 support for SBI interface
+* Add usage report feature
+* Flexiable MTU
+* Support for Ubuntu 20.04 bare-metal installation
+* Official images produced by CI are pushed to `oaisoftwarealliance` Docker-Hub Team account
+* Reduce image size
 ## v1.3.0 -- January 2022 ##
 * Update NWI from NF profile

--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@ At the moment, it contains the following network elements:
 * Unified Data Management (**UDM**)
 * Unified Data Repository (**UDR**)
 * User Plane Function (**UPF**)
+* Network Slicing Selection Function (**NSSF**)
 Each has its own repository: this repository (`oai-cn5g-smf`) is meant for SMF.

--- a/build/scripts/build_helper.fb_folly
+++ b/build/scripts/build_helper.fb_folly
@@ -67,9 +67,9 @@ install_fb_folly_from_source(){
      ret=$?;[[ $ret -ne 0 ]] && return $ret
    elif [[ $OS_DISTRO == "ubuntu" ]]; then
      $SUDO $INSTALLER install $OPTION \
+        $CMAKE \
        g++ \
        libevent-dev \
-        libboost1.67-dev \
        libdouble-conversion-dev \
        libgoogle-glog-dev \
        libgflags-dev \

--- a/build/scripts/build_helper.smf
+++ b/build/scripts/build_helper.smf
@@ -373,7 +373,10 @@ check_install_smf_deps() {
        # PPA has 1.67
        $SUDO add-apt-repository ppa:mhier/libboost-latest --yes
        $SUDO $INSTALLER update
-        specific_packages="libconfig++-dev"        
+        specific_packages="libconfig++-dev libboost-all-dev"        
+      ;;
+      "ubuntu20.04")
+        specific_packages="libconfig++-dev libasio-dev libboost-all-dev"
      ;;
      *)
        specific_packages="libconfig++-dev libasio-dev libboost-all-dev"
@@ -382,11 +385,10 @@ check_install_smf_deps() {
    # removed libspdlog-dev
    PACKAGE_LIST="\
      $specific_packages \
-      libboost1.67-dev \
      guile-2.0-dev \
      libcurl4-gnutls-dev \
      libevent-dev \
-      libgcrypt11-dev \
+      libgcrypt?-dev \
      libgmp-dev \
      libhogweed? \
      libidn2-0-dev \
@@ -403,7 +405,7 @@ check_install_smf_deps() {
      net-tools \
      pkg-config \
      wget \
-      libasan2"
+      libasan?"
  elif [[ "$OS_BASEDISTRO" == "fedora" ]]; then
    PACKAGE_LIST="\
      guile-devel \
@@ -430,6 +432,17 @@ check_install_smf_deps() {
  fi
  echo "Install distro libs"
  $SUDO $INSTALLER install $OPTION $PACKAGE_LIST
+  # fix issue with libboost in U18 for a bare metal deployment
+  if [[ $OS_DISTRO == "ubuntu" ]]; then
+    case "$(get_distribution_release)" in
+      "ubuntu18.04")
+        $SUDO $INSTALLER remove $OPTION libboost1.65-dev || true
+        $SUDO $INSTALLER install $OPTION libboost1.67-dev
+        ;;   
+    esac
+  fi  
  ret=$?;[[ $ret -ne 0 ]] && return $ret
  echo "distro libs installation complete"

--- a/build/scripts/smf_conf.sh
+++ b/build/scripts/smf_conf.sh
@@ -19,26 +19,73 @@ SMF_CONF[@SMF_INTERFACE_PORT_FOR_SBI@]='80'
 SMF_CONF[@SMF_INTERFACE_HTTP2_PORT_FOR_SBI@]='9090'
 SMF_CONF[@SMF_API_VERSION@]='v1'
+SMF_CONF[@DNN_NI0@]='oai.ipv4'
+SMF_CONF[@TYPE0@]='IPv4'
+SMF_CONF[@DNN_RANGE0@]='12.1.1.2 - 12.1.1.128'
+SMF_CONF[@DNN_NI1@]='default'
+SMF_CONF[@TYPE1@]='IPv4'
+SMF_CONF[@DNN_RANGE1@]='12.2.1.2 - 12.2.1.128'
+SMF_CONF[@DNN_NI2@]='oai'
+SMF_CONF[@TYPE2@]='IPv4'
+SMF_CONF[@DNN_RANGE2@]='12.1.1.129 - 12.1.1.224'
+SMF_CONF[@DNN_NI3@]='ims'
+SMF_CONF[@TYPE3@]='IPv4'
+SMF_CONF[@DNN_RANGE3@]='12.2.1.129 - 12.2.1.224'
+SMF_CONF[@USE_NETWORK_INSTANCE@]='no'
+SMF_CONF[@USE_LOCAL_SUBSCRIPTION_INFO@]='yes'
+SMF_CONF[@DOMAIN_ACCESS@]='access.oai.org'
+SMF_CONF[@DOMAIN_CORE@]='core.oai.org'
+SMF_CONF[@USE_FQDN_DNS@]='no'
+SMF_CONF[@ENABLE_USAGE_REPORTING@]='no'
 SMF_CONF[@REGISTER_NRF@]='no'
 SMF_CONF[@DISCOVER_UPF@]='no'
+SMF_CONF[@HTTP_VERSION@]='1'
+SMF_CONF[@UE_MTU@]='1358'
+SMF_CONF[@NSSAI_SST0@]='222'
+SMF_CONF[@NSSAI_SD0@]='123'
+SMF_CONF[@NSSAI_SST1@]='1'
+SMF_CONF[@NSSAI_SD1@]='0xFFFFFF'
+SMF_CONF[@NSSAI_SST2@]='2'
+SMF_CONF[@NSSAI_SD2@]='2'
+SMF_CONF[@QOS_PROFILE_5QI0@]='6'
+SMF_CONF[@QOS_PROFILE_5QI1@]='7'
+SMF_CONF[@QOS_PROFILE_5QI2@]='8'
+SMF_CONF[@SESSION_AMBR_UL0@]='20Mbps'
+SMF_CONF[@SESSION_AMBR_UL1@]='220Mbps'
+SMF_CONF[@SESSION_AMBR_UL2@]='20Mbps'
+SMF_CONF[@SESSION_AMBR_DL0@]='20Mbps'
+SMF_CONF[@SESSION_AMBR_DL1@]='220Mbps'
+SMF_CONF[@SESSION_AMBR_DL2@]='20Mbps'
 SMF_CONF[@UDM_IPV4_ADDRESS@]='172.16.1.103'
 SMF_CONF[@UDM_PORT@]='80'
 SMF_CONF[@UDM_API_VERSION@]='v2'
-SMF_CONF[@UDM_FQDN@]='localhost'
+SMF_CONF[@UDM_FQDN@]='oai-udm'
 SMF_CONF[@AMF_IPV4_ADDRESS@]='192.168.74.195'
 SMF_CONF[@AMF_PORT@]='80'
 SMF_CONF[@AMF_API_VERSION@]='v1'
-SMF_CONF[@AMF_FQDN@]='localhost'
+SMF_CONF[@AMF_FQDN@]='oai-amf'
 SMF_CONF[@UPF_IPV4_ADDRESS@]='192.168.12.245'
-SMF_CONF[@UPF_FQDN@]='localhost'
+SMF_CONF[@UPF_FQDN_0@]='oai-upf0'
 SMF_CONF[@NRF_IPV4_ADDRESS@]='127.0.0.1'
 SMF_CONF[@NRF_PORT@]='8080'
 SMF_CONF[@NRF_API_VERSION@]='v1'
-SMF_CONF[@NRF_FQDN@]='localhost'
+SMF_CONF[@NRF_FQDN@]='oai-nrf'
 SMF_CONF[@DEFAULT_DNS_IPV4_ADDRESS@]='8.8.8.8'
 SMF_CONF[@DEFAULT_DNS_SEC_IPV4_ADDRESS@]='4.4.4.4'

--- a/ci-scripts/Jenkinsfile-GitLab-Docker
+++ b/ci-scripts/Jenkinsfile-GitLab-Docker
@@ -50,6 +50,9 @@ def SMF_BASE_IMAGE_TAG = params.SmfBaseImageTag
 // Merge Request Link
 def gitlabMergeRequestLink
+// Docker Hub account to push to
+def DH_Account = "oaisoftwarealliance"
 //-------------------------------------------------------------------------------
 // Pipeline start
 pipeline {
@@ -134,7 +137,6 @@ pipeline {
            echo "MR TITLE    is ${env.gitlabMergeRequestTitle}"
            gitCommitAuthorEmailAddr = env.gitlabUserEmail
            echo "GitLab Usermail is ${gitCommitAuthorEmailAddr}"
-            sh "git fetch --prune --unshallow"
            shortenShaOne = sh returnStdout: true, script: 'git log -1 --pretty=format:"%h" ' + env.gitlabMergeRequestLastCommit
            shortenShaOne = shortenShaOne.trim()
            sh "./ci-scripts/doGitLabMerge.sh --src-branch ${env.gitlabSourceBranch} --src-commit ${env.gitlabMergeRequestLastCommit} --target-branch ${env.gitlabTargetBranch} --target-commit ${GIT_COMMIT}"
@@ -185,7 +187,7 @@ pipeline {
                    echo "Maybe a previous build went wrong"
                  }
                  // In case of push to `develop` branch we build from scratch
-                  myShCmd('docker build --no-cache --target oai-smf --tag oai-smf:' + smf_tag + ' --file docker/Dockerfile.smf.ubuntu18 --build-arg NEEDED_GIT_PROXY="http://proxy.eurecom.fr:8080" . > archives/smf_docker_image_build.log 2>&1', rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
+                  myShCmd('docker build --no-cache --target oai-smf --tag oai-smf:' + smf_tag + ' --file docker/Dockerfile.smf.ubuntu18 . > archives/smf_docker_image_build.log 2>&1', rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
                }
                if ("MERGE".equals(env.gitlabActionType)) {
                  try {
@@ -200,6 +202,9 @@ pipeline {
                  myShCmd('docker image tag oai-smf-base:' +SMF_BASE_IMAGE_TAG + ' oai-smf-base:latest', rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
                  myShCmd('docker build --no-cache --target oai-smf --tag oai-smf:' + smf_tag + ' --file ci-scripts/docker/Dockerfile.ci.ubuntu.18.04 . > archives/smf_docker_image_build.log 2>&1', rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
                }
+                // Putting a place holder to try out on the flattening of image.
+                // If not satisfactory, we can remove it.
+                myShCmd('python3 ./ci-scripts/flatten_image.py --tag oai-smf:' + smf_tag, rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
                myShCmd('docker image ls >> archives/smf_docker_image_build.log', rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
                // We will keep also the TMP image in U18 case.
                if ("MERGE".equals(env.gitlabActionType)) {
@@ -242,10 +247,14 @@ pipeline {
                  }
                  myShCmd('sudo podman image prune --force', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
                  // Copy the RHEL Host certificates for building
-                  myShCmd('mkdir -p tmp/ca tmp/entitlement', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
+                  myShCmd('mkdir -p ./etc-pki-entitlement ./rhsm-conf ./rhsm-ca', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
-                  myShCmd('cp /etc/pki/entitlement/*pem tmp/entitlement', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
+                  myShCmd('cp /etc/pki/entitlement/*pem ./etc-pki-entitlement', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
-                  myShCmd('sudo cp /etc/rhsm/ca/redhat-uep.pem tmp/ca', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
+                  myShCmd('sudo cp /etc/rhsm/rhsm.conf ./rhsm-conf', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
-                  myShCmd('sudo podman build --no-cache --target oai-smf --tag oai-smf:' + smf_tag + ' --file docker/Dockerfile.smf.rhel8 --build-arg NEEDED_GIT_PROXY="http://proxy.eurecom.fr:8080" . > archives/smf_podman_image_build.log 2>&1', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
+                  myShCmd('sudo cp /etc/rhsm/ca/*pem ./rhsm-ca', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
+                  myShCmd('sudo podman build --no-cache --target oai-smf --tag oai-smf:' + smf_tag + ' --file docker/Dockerfile.smf.rhel8 . > archives/smf_podman_image_build.log 2>&1', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
+                  // Putting a place holder to try out on the flattening of image.
+                  // If not satisfactory, we can remove it.
+                  myShCmd('python3 ./ci-scripts/flatten_image.py --tag oai-smf:' + smf_tag, rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
                  myShCmd('sudo podman image ls >> archives/smf_podman_image_build.log', rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
                  if ("MERGE".equals(env.gitlabActionType)) {
                    myShCmd('sudo podman image tag oai-smf:' + smf_tag + ' oai-smf:' + rhel_smf_tag, rem_rhel_host_flag, rem_rhel_host_user, rem_rhel_host)
@@ -409,6 +418,36 @@ pipeline {
            }
          }
        }
+        stage ('Testing the tutorials') {
+          steps {
+            script {
+              gitlabCommitStatus(name: "Test tutorials") {
+                localStatus = build job: 'OAI-CN5G-Tutorials-Check',
+                  parameters: [
+                    string(name: 'SMF_TAG', value: String.valueOf(smf_tag)),
+                    string(name: 'SMF_BRANCH', value: String.valueOf(smf_branch))
+                  ], propagate: false
+                localResult = localStatus.getResult()
+                if (localStatus.resultIsBetterOrEqualTo('SUCCESS')) {
+                  echo "Tutorials Test Job is OK"
+                } else {
+                  echo "Tutorials Test Job is KO"
+                  sh "ci-scripts/fail.sh"
+                }
+              }
+            }
+          }
+          post {
+            always {
+              script {
+                copyArtifacts(projectName: 'OAI-CN5G-Tutorials-Check',
+                              filter: '*_results_oai_cn5g*.html',
+                              selector: lastCompleted())
+              }
+            }
+          }
+        }
      }
    }
    // For the moment it is Docker-Hub, but we might have a new one internally.
@@ -421,9 +460,9 @@ pipeline {
              [$class: 'UsernamePasswordMultiBinding', credentialsId: "${params.DockerHubCredentials}", usernameVariable: 'DH_Username', passwordVariable: 'DH_Password']
            ]) {
              myShCmd("echo ${DH_Password} | docker login --username ${DH_Username} --password-stdin", rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
-              myShCmd("docker image tag oai-smf:develop ${DH_Username}/oai-smf:develop", rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
+              myShCmd("docker image tag oai-smf:develop ${DH_Account}/oai-smf:develop", rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
-              myShCmd("docker push ${DH_Username}/oai-smf:develop", rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
+              myShCmd("docker push ${DH_Account}/oai-smf:develop", rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
-              myShCmd("docker rmi ${DH_Username}/oai-smf:develop", rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
+              myShCmd("docker rmi ${DH_Account}/oai-smf:develop", rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
              myShCmd("docker logout", rem_u18_host_flag, rem_u18_host_user, rem_u18_host)
            }
          }

--- a/ci-scripts/checkCodingFormattingRules.sh
+++ b/ci-scripts/checkCodingFormattingRules.sh
@@ -139,6 +139,16 @@ then
    exit 1
 fi
+# When running in a container, in /home folder
+IS_CONTAINER=`egrep -c "docker|kubepods|podman|buildah|libpod" /proc/self/cgroup || true`
+if [ $IS_CONTAINER -ne 0 ]
+then
+    if [ $PWD = "/home/src" ]
+    then
+       git config --global --add safe.directory /home
+    fi
+fi
 # Merge request scenario
 MERGE_COMMMIT=`git log -n1 --pretty=format:%H`

--- a/ci-scripts/docker/Dockerfile.ci.ubuntu.18.04
+++ b/ci-scripts/docker/Dockerfile.ci.ubuntu.18.04
@@ -36,7 +36,8 @@ RUN cp -Rf /openair-smf-ext-ref /openair-smf/build/ext
 # Building SMF
 WORKDIR /openair-smf/build/scripts
-RUN ./build_smf --clean --Verbose --build-type Release --jobs && \
+RUN ldconfig && \
+    ./build_smf --clean --Verbose --build-type Release --jobs && \
    ldd /openair-smf/build/smf/build/smf && \
    mv /openair-smf/build/smf/build/smf /openair-smf/build/smf/build/oai_smf
@@ -54,10 +55,10 @@ RUN apt-get update && \
      net-tools \
      tzdata \
      bc \
-      tshark \
      perl \
      openssl \
      libasan4 \
+      libgssapi-krb5-2 \
      libldap-2.4-2 \
      libgoogle-glog0v5 \
      libdouble-conversion1 \
@@ -74,6 +75,7 @@ COPY --from=oai-smf-builder \
 WORKDIR /usr/local/lib/
 COPY --from=oai-smf-builder \
    /usr/local/lib/libpistache.so \
+    /usr/local/lib/libnghttp2.so.14 \
    /usr/local/lib/libnghttp2_asio.so.1 \
    /usr/lib/libboost_system.so.1.67.0 \
    /usr/lib/libboost_thread.so.1.67.0 \

--- a/ci-scripts/flatten_image.py
+++ b/ci-scripts/flatten_image.py
+"""
+ Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ contributor license agreements.  See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The OpenAirInterface Software Alliance licenses this file to You under
+ the OAI Public License, Version 1.1  (the "License"); you may not use this file
+ except in compliance with the License.
+ You may obtain a copy of the License at
+   http://www.openairinterface.org/?page_id=698
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-------------------------------------------------------------------------------
+ For more information about the OpenAirInterface (OAI) Software Alliance:
+   contact@openairinterface.org
+"""
+import argparse
+import re
+import subprocess
+import sys
+def main() -> None:
+    args = _parse_args()
+    status = perform_flattening(args.tag)
+    sys.exit(status)
+def _parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description='Flattening Image')
+    parser.add_argument(
+        '--tag', '-t',
+        action='store',
+        required=True,
+        help='Image Tag in image-name:image tag format',
+    )
+    return parser.parse_args()
+def perform_flattening(tag):
+    # First detect which docker/podman command to use
+    cli = ''
+    image_prefix = ''
+    cmd = 'which podman || true'
+    podman_check = subprocess.check_output(cmd, shell=True, universal_newlines=True)
+    if re.search('podman', podman_check.strip()):
+        cli = 'sudo podman'
+        image_prefix = 'localhost/'
+    if cli == '':
+        cmd = 'which docker || true'
+        docker_check = subprocess.check_output(cmd, shell=True, universal_newlines=True)
+        if re.search('docker', docker_check.strip()):
+            cli = 'docker'
+            image_prefix = ''
+    if cli == '':
+        print ('No docker / podman installed: quitting')
+        return -1
+    print (f'Flattening {tag}')
+    # Creating a container
+    cmd = cli + ' run --name test-flatten --entrypoint /bin/true -d ' + tag
+    print (cmd)
+    subprocess.check_output(cmd, shell=True, universal_newlines=True)
+    # Export / Import trick
+    cmd = cli + ' export test-flatten | ' + cli + ' import '
+    # Bizarro syntax issue with podman
+    if cli == 'docker':
+      cmd += ' --change "ENV PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" '
+    else:
+      cmd += ' --change "ENV PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" '
+    cmd += ' --change "WORKDIR /openair-smf" '
+    cmd += ' --change "EXPOSE 80/tcp" '
+    cmd += ' --change "EXPOSE 8080/tcp" '
+    cmd += ' --change "EXPOSE 8805/udp" '
+    cmd += ' --change "CMD [\\"/openair-smf/bin/oai_smf\\", \\"-c\\", \\"/openair-smf/etc/smf.conf\\", \\"-o\\"]" '
+    cmd += ' --change "ENTRYPOINT [\\"/bin/bash\\", \\"/openair-smf/bin/entrypoint.sh\\"]" '
+    cmd += ' - ' + image_prefix + tag
+    print (cmd)
+    subprocess.check_output(cmd, shell=True, universal_newlines=True)
+    # Remove container
+    cmd = cli + ' rm -f test-flatten'
+    print (cmd)
+    subprocess.check_output(cmd, shell=True, universal_newlines=True)
+    # At this point the original image is a dangling image.
+    # CI pipeline will clean up (`image prune --force`)
+    return 0
+if __name__ == '__main__':
+    main()
--- a/ci-scripts/generateHtmlReport.py
+++ b/ci-scripts/generateHtmlReport.py
@@ -853,7 +853,7 @@ class HtmlReport():
 									result = re.search('oai-smf *ci-tmp', line)
 								else:
 									result = re.search('oai-smf *develop', line)
-							if result is not None:
+							if result is not None and not status:
 								result = re.search('ago  *([0-9A-Z ]+)', line)
 								if result is not None:
 									size = result.group(1)

--- a/docker/Dockerfile.smf.rhel8
+++ b/docker/Dockerfile.smf.rhel8
@@ -32,8 +32,12 @@ FROM registry.access.redhat.com/ubi8/ubi:latest AS oai-smf-builder
 ARG NEEDED_GIT_PROXY
-COPY tmp/ca/redhat-uep.pem /etc/rhsm/ca
+# Copy the entitlements
-COPY tmp/entitlement/*.pem /etc/pki/entitlement
+COPY ./etc-pki-entitlement /etc/pki/entitlement
+# Copy the subscription manager configurations
+COPY ./rhsm-conf /etc/rhsm
+COPY ./rhsm-ca /etc/rhsm/ca
 RUN rm -f /etc/rhsm-host && \
    yum repolist --disablerepo=* && \
@@ -43,7 +47,8 @@ RUN rm -f /etc/rhsm-host && \
        psmisc \
        git \
        diffutils \
-        file && \
+        file \
+        boost-devel &&\
    rm -rf /var/lib/apt/lists/* 
 # Some GIT configuration command quite useful
@@ -76,7 +81,8 @@ RUN yum update -y && \
        procps-ng \
        net-tools \
        libevent && \
-    rm -rf /var/lib/apt/lists/*
+    yum clean all -y && \
+    rm -rf /var/cache/yum /var/cache/dnf
 # Copying executable and generated libraries
 WORKDIR /openair-smf/bin

--- a/docker/Dockerfile.smf.ubuntu18
+++ b/docker/Dockerfile.smf.ubuntu18
@@ -44,8 +44,8 @@ RUN apt-get update && \
    rm -rf /var/lib/apt/lists/*
 # Some GIT configuration command quite useful
-RUN /bin/bash -c "if [[ -v NEEDED_GIT_PROXY ]]; then git config --global http.proxy $NEEDED_GIT_PROXY; fi" && \
+RUN /bin/bash -c "if [[ -v NEEDED_GIT_PROXY ]]; then git config --global http.proxy $NEEDED_GIT_PROXY; fi"
-    git config --global https.postBuffer 123289600 && \
+RUN git config --global https.postBuffer 123289600 && \
    git config --global http.sslverify false
 # Copying source code
@@ -73,10 +73,10 @@ RUN apt-get update && \
      net-tools \
      tzdata \
      bc \
-      tshark \
      perl \
      openssl \
      libasan4 \
+      libgssapi-krb5-2 \
      libldap-2.4-2 \
      libgoogle-glog0v5 \
      libdouble-conversion1 \
@@ -93,6 +93,7 @@ COPY --from=oai-smf-builder \
 WORKDIR /usr/local/lib/
 COPY --from=oai-smf-builder \
    /usr/local/lib/libpistache.so \
+    /usr/local/lib/libnghttp2.so.14 \
    /usr/local/lib/libnghttp2_asio.so.1 \
    /usr/lib/libboost_system.so.1.67.0 \
    /usr/lib/libboost_thread.so.1.67.0 \

--- a/etc/smf.conf
+++ b/etc/smf.conf
@@ -64,8 +64,12 @@ SMF =
    DEFAULT_DNS_IPV6_ADDRESS     = "2001:4860:4860::8888";            # YOUR DNS CONFIG HERE
    DEFAULT_DNS_SEC_IPV6_ADDRESS = "2001:4860:4860::8844";            # YOUR DNS CONFIG HERE
+    #Default P-CSCF server 
+    DEFAULT_CSCF_IPV4_ADDRESS = "@DEFAULT_CSCF_IPV4_ADDRESS@"; 
+    DEFAULT_CSCF_IPV6_ADDRESS = "fe80::7915:f408:1787:db8b";
    #Default UE MTU
-    UE_MTU = 1358;
+    UE_MTU = @UE_MTU@;
    # SUPPORT FEATURES
    SUPPORT_FEATURES:
@@ -79,6 +83,7 @@ SMF =
      USE_FQDN_DNS = "@USE_FQDN_DNS@";                  # Set to yes if AMF/UDM/NRF/UPF will relying on a DNS to resolve FQDN
      HTTP_VERSION = @HTTP_VERSION@;                    # Default: 1
      USE_NETWORK_INSTANCE    = "@USE_NETWORK_INSTANCE@"   # Set yes if network instance is to be used for given UPF
+      ENABLE_USAGE_REPORTING = "@ENABLE_USAGE_REPORTING@"   # Set yes if UE USAGE REPORTING is to be done at UPF
    }
    AMF :
@@ -112,15 +117,15 @@ SMF =
    LOCAL_CONFIGURATION :
    {
      SESSION_MANAGEMENT_SUBSCRIPTION_LIST = (
-         { NSSAI_SST = @NSSAI_SST0@, NSSAI_SD = "@NSSAI_SD0@", DNN = "default", DEFAULT_SESSION_TYPE = "IPV4", DEFAULT_SSC_MODE = 1,
+         { NSSAI_SST = @NSSAI_SST0@, NSSAI_SD = "@NSSAI_SD0@", DNN = "@DNN_NI0@", DEFAULT_SESSION_TYPE = "@TYPE0@", DEFAULT_SSC_MODE = 1,
-           QOS_PROFILE_5QI = 6, QOS_PROFILE_PRIORITY_LEVEL = 1, QOS_PROFILE_ARP_PRIORITY_LEVEL = 1, QOS_PROFILE_ARP_PREEMPTCAP = "NOT_PREEMPT",
+           QOS_PROFILE_5QI = @QOS_PROFILE_5QI0@, QOS_PROFILE_PRIORITY_LEVEL = 1, QOS_PROFILE_ARP_PRIORITY_LEVEL = 1, QOS_PROFILE_ARP_PREEMPTCAP = "NOT_PREEMPT",
-           QOS_PROFILE_ARP_PREEMPTVULN = "NOT_PREEMPTABLE", SESSION_AMBR_UL = "20Mbps", SESSION_AMBR_DL = "22Mbps"},
+           QOS_PROFILE_ARP_PREEMPTVULN = "NOT_PREEMPTABLE", SESSION_AMBR_UL = "@SESSION_AMBR_UL0@", SESSION_AMBR_DL = "@SESSION_AMBR_DL0@"},
-         { NSSAI_SST = @NSSAI_SST1@; NSSAI_SD = "@NSSAI_SD1@", DNN = "oai", DEFAULT_SESSION_TYPE = "IPV4", DEFAULT_SSC_MODE = 1,
+         { NSSAI_SST = @NSSAI_SST1@; NSSAI_SD = "@NSSAI_SD1@", DNN = "@DNN_NI1@", DEFAULT_SESSION_TYPE = "@TYPE1@", DEFAULT_SSC_MODE = 1,
-           QOS_PROFILE_5QI = 7, QOS_PROFILE_PRIORITY_LEVEL = 1, QOS_PROFILE_ARP_PRIORITY_LEVEL = 1, QOS_PROFILE_ARP_PREEMPTCAP = "NOT_PREEMPT",
+           QOS_PROFILE_5QI = @QOS_PROFILE_5QI1@, QOS_PROFILE_PRIORITY_LEVEL = 1, QOS_PROFILE_ARP_PRIORITY_LEVEL = 1, QOS_PROFILE_ARP_PREEMPTCAP = "NOT_PREEMPT",
-           QOS_PROFILE_ARP_PREEMPTVULN = "NOT_PREEMPTABLE", SESSION_AMBR_UL = "20Mbps", SESSION_AMBR_DL = "22Mbps"},
+           QOS_PROFILE_ARP_PREEMPTVULN = "NOT_PREEMPTABLE", SESSION_AMBR_UL = "@SESSION_AMBR_UL1@", SESSION_AMBR_DL = "@SESSION_AMBR_DL1@"},
-         { NSSAI_SST = @NSSAI_SST2@; NSSAI_SD = "@NSSAI_SD2@", DNN = "oai.ipv4", DEFAULT_SESSION_TYPE = "IPV4", DEFAULT_SSC_MODE = 1,
+         { NSSAI_SST = @NSSAI_SST2@; NSSAI_SD = "@NSSAI_SD2@", DNN = "@DNN_NI2@", DEFAULT_SESSION_TYPE = "@TYPE2@", DEFAULT_SSC_MODE = 1,
-           QOS_PROFILE_5QI = 8, QOS_PROFILE_PRIORITY_LEVEL = 1, QOS_PROFILE_ARP_PRIORITY_LEVEL = 1, QOS_PROFILE_ARP_PREEMPTCAP = "NOT_PREEMPT",
+           QOS_PROFILE_5QI = @QOS_PROFILE_5QI2@, QOS_PROFILE_PRIORITY_LEVEL = 1, QOS_PROFILE_ARP_PRIORITY_LEVEL = 1, QOS_PROFILE_ARP_PREEMPTCAP = "NOT_PREEMPT",
-           QOS_PROFILE_ARP_PREEMPTVULN = "NOT_PREEMPTABLE", SESSION_AMBR_UL = "20Mbps", SESSION_AMBR_DL = "22Mbps"}
+           QOS_PROFILE_ARP_PREEMPTVULN = "NOT_PREEMPTABLE", SESSION_AMBR_UL = "@SESSION_AMBR_UL2@", SESSION_AMBR_DL = "@SESSION_AMBR_DL2@"}
        );
    };

--- a/scripts/entrypoint.sh
+++ b/scripts/entrypoint.sh
@@ -5,17 +5,27 @@ set -euo pipefail
 CONFIG_DIR="/openair-smf/etc"
 # Default values
-# (Default NWI Domain for all UPFs in OAI-Integration)
+ENABLE_USAGE_REPORTING=${ENABLE_USAGE_REPORTING:-no}
 USE_NETWORK_INSTANCE=${USE_NETWORK_INSTANCE:-no}
 USE_LOCAL_SUBSCRIPTION_INFO=${USE_LOCAL_SUBSCRIPTION_INFO:-yes}
 DOMAIN_ACCESS=${DOMAIN_ACCESS:-access.oai.org}
 DOMAIN_CORE=${DOMAIN_CORE:-core.oai.org}
+UE_MTU=${UE_MTU:-1358}
 NSSAI_SST0=${NSSAI_SST0:-222}
 NSSAI_SD0=${NSSAI_SD0:-123}
 NSSAI_SST1=${NSSAI_SST1:-1}
 NSSAI_SD1=${NSSAI_SD1:-1}
 NSSAI_SST2=${NSSAI_SST2:-1}
 NSSAI_SD2=${NSSAI_SD2:-1}
+QOS_PROFILE_5QI0=${QOS_PROFILE_5QI0:-6}
+QOS_PROFILE_5QI1=${QOS_PROFILE_5QI1:-7}
+QOS_PROFILE_5QI2=${QOS_PROFILE_5QI2:-8}
+SESSION_AMBR_UL0=${SESSION_AMBR_UL0:-20Mbps}
+SESSION_AMBR_DL0=${SESSION_AMBR_DL0:-22Mbps}
+SESSION_AMBR_UL1=${SESSION_AMBR_UL1:-20Mbps}
+SESSION_AMBR_DL1=${SESSION_AMBR_DL1:-22Mbps}
+SESSION_AMBR_UL2=${SESSION_AMBR_UL2:-20Mbps}
+SESSION_AMBR_DL2=${SESSION_AMBR_DL2:-22Mbps}
 if [[ ${USE_FQDN_DNS} == "yes" ]];then
    AMF_IPV4_ADDRESS=${AMF_IPV4_ADDRESS:-0.0.0.0}
@@ -23,6 +33,9 @@ if [[ ${USE_FQDN_DNS} == "yes" ]];then
    UPF_IPV4_ADDRESS=${UPF_IPV4_ADDRESS:-0.0.0.0}
    UDM_IPV4_ADDRESS=${UDM_IPV4_ADDRESS:-0.0.0.0}
 fi
+DEFAULT_CSCF_IPV4_ADDRESS=${DEFAULT_CSCF_IPV4_ADDRESS:-127.0.0.1}
 HTTP_VERSION=${HTTP_VERSION:-1}
 DNN_NI0=${DNN_NI0:-oai.ipv4}

--- a/src/common/3gpp_29.244.h
+++ b/src/common/3gpp_29.244.h
@@ -1169,6 +1169,8 @@ typedef struct usage_report_trigger_s {
  uint16_t liusa : 1;
  uint16_t timqu : 1;
  uint16_t volqu : 1;
+  uint16_t tebur : 1;
+  uint16_t evequ : 1;
 } usage_report_trigger_t;
 //-------------------------------------
@@ -1181,16 +1183,23 @@ typedef struct measurement_period_s {
 // 8.2.43 Fully qualified PDN Connection Set Identifier (FQ-CSID)
 // typedef fq_csid_t fq_csid_t;
+// Extended as per Release 16.5.0, to handle stats related to packet count
 //-------------------------------------
 // 8.2.44 Volume Measurement
 typedef struct volume_measurement_s {
-  uint8_t spare : 5;
+  uint8_t spare : 2;
+  uint8_t dlnop : 1;
+  uint8_t ulnop : 1;
+  uint8_t tonop : 1;
  uint8_t dlvol : 1;
  uint8_t ulvol : 1;
  uint8_t tovol : 1;
  uint64_t total_volume;
  uint64_t uplink_volume;
  uint64_t downlink_volume;
+  uint64_t total_nop;
+  uint64_t uplink_nop;
+  uint64_t downlink_nop;
 } volume_measurement_t;
 //-------------------------------------
@@ -1557,7 +1566,7 @@ typedef struct user_plane_ip_resource_information_s {
  uint8_t teid_range;
  struct in_addr ipv4_address;
  struct in6_addr ipv6_address;
-  uint16_t network_instance;
+  std::string network_instance;
  uint8_t source_interface;
 } user_plane_ip_resource_information_t;

--- a/src/common/smf.h
+++ b/src/common/smf.h
@@ -32,6 +32,10 @@ typedef uint64_t supi64_t;
 #define SUPI_DIGITS_MAX 15
+const uint32_t SD_NO_VALUE               = 0xFFFFFF;
+const std::string SD_NO_VALUE_STR        = "0xFFFFFF";
+const uint8_t SST_MAX_STANDARDIZED_VALUE = 127;
 typedef struct {
  uint32_t length;
  char data[SUPI_DIGITS_MAX + 1];
@@ -58,15 +62,23 @@ static uint64_t smf_supi_to_u64(supi_t supi) {
 typedef struct s_nssai  // section 28.4, TS23.003
 {
-  uint8_t sST;
+  uint8_t sst;
-  // uint32_t sD:24;
+  uint32_t sd;
-  std::string sD;
+  s_nssai(const uint8_t& m_sst, const uint32_t m_sd) : sst(m_sst), sd(m_sd) {}
-  // s_nssai(const uint8_t& sst,  const uint32_t sd) : sST(sst), sD(sd) {}
+  s_nssai(const uint8_t& m_sst, const std::string m_sd) : sst(m_sst) {
-  s_nssai(const uint8_t& sst, const std::string sd) : sST(sst), sD(sd) {}
+    sd = 0xFFFFFF;
-  s_nssai() : sST(), sD() {}
+    try {
-  s_nssai(const s_nssai& p) : sST(p.sST), sD(p.sD) {}
+      sd = std::stoul(m_sd, nullptr, 10);
+    } catch (const std::exception& e) {
+      Logger::smf_app().warn(
+          "Error when converting from string to int for snssai.SD, error: %s",
+          e.what());
+    }
+  }
+  s_nssai() : sst(), sd() {}
+  s_nssai(const s_nssai& p) : sst(p.sst), sd(p.sd) {}
  bool operator==(const struct s_nssai& s) const {
-    if ((s.sST == this->sST) && (s.sD.compare(this->sD) == 0)) {
+    if ((s.sst == this->sst) && (s.sd == this->sd)) {
      return true;
    } else {
      return false;
@@ -74,15 +86,15 @@ typedef struct s_nssai  // section 28.4, TS23.003
  }
  s_nssai& operator=(const struct s_nssai& s) {
-    sST = s.sST;
+    sst = s.sst;
-    sD  = s.sD;
+    sd  = s.sd;
    return *this;
  }
  std::string toString() const {
    std::string s = {};
-    s.append("SST=").append(std::to_string(sST));
+    s.append("SST=").append(std::to_string(sst));
-    s.append(", SD=").append(sD);
+    s.append(", SD=").append(std::to_string(sd));
    return s;
  }
@@ -174,8 +186,8 @@ enum class sm_context_status_e {
  SM_CONTEXT_STATUS_RELEASED = 1
 };
-static const std::vector<std::string> sm_context_status_e2str = {"ACTIVE",
+static const std::vector<std::string> sm_context_status_e2str = {
-                                                                 "RELEASED"};
+    "ACTIVE", "RELEASED"};
 typedef struct qos_profile_gbr_s {
  gfbr_t gfbr;  // Guaranteed Flow Bit Rate

--- a/src/common/utils/3gpp_conversions.cpp
+++ b/src/common/utils/3gpp_conversions.cpp
@@ -32,6 +32,8 @@
 #include <stdbool.h>
 #include <ctype.h>
 #include <inttypes.h>
+#include <boost/algorithm/string.hpp>
 #include "SmContextCreateData.h"
 #include "SmContextUpdateData.h"
 #include "SmContextReleaseData.h"
@@ -558,8 +560,8 @@ void xgpp_conv::smf_event_exposure_notification_from_openapi(
 void xgpp_conv::sm_context_request_from_nas(
    const nas_message_t& nas_msg,
    smf::pdu_session_create_sm_context_request& pcr) {
-  pdu_session_type_t pdu_session_type = {.pdu_session_type =
+  pdu_session_type_t pdu_session_type = {
-                                             PDU_SESSION_TYPE_E_IPV4};
+      .pdu_session_type = PDU_SESSION_TYPE_E_IPV4};
  // Extended Protocol Discriminator
  pcr.set_epd(nas_msg.header.extended_protocol_discriminator);
  // Message Type
@@ -634,3 +636,23 @@ void xgpp_conv::update_sm_context_response_from_ctx_request(
  ct_response->res.set_snssai(ct_request->req.get_snssai());
  ct_response->res.set_dnn(ct_request->req.get_dnn());
 }
+//------------------------------------------------------------------------------
+void xgpp_conv::sd_string_to_int(const std::string& sd_str, uint32_t& sd) {
+  sd = SD_NO_VALUE;
+  if (sd_str.empty()) return;
+  uint8_t base = 10;
+  try {
+    if (sd_str.size() > 2) {
+      if (boost::iequals(sd_str.substr(0, 2), "0x")) {
+        base = 16;
+      }
+    }
+    sd = std::stoul(sd_str, nullptr, base);
+  } catch (const std::exception& e) {
+    Logger::smf_app().error(
+        "Error when converting from string to int for S-NSSAI SD, error: %s",
+        e.what());
+    sd = SD_NO_VALUE;
+  }
+}
--- a/src/common/utils/3gpp_conversions.hpp
+++ b/src/common/utils/3gpp_conversions.hpp
@@ -169,6 +169,7 @@ void update_sm_context_response_from_ctx_request(
    const std::shared_ptr<itti_n11_update_sm_context_request>& ct_request,
    std::shared_ptr<itti_n11_update_sm_context_response>& ct_response);
+void sd_string_to_int(const std::string& sd_str, uint32_t& sd);
 }  // namespace xgpp_conv
 #endif /* FILE_3GPP_CONVERSIONS_HPP_SEEN */
--- a/src/nas/ies/SNSSAI.c
+++ b/src/nas/ies/SNSSAI.c
@@ -45,7 +45,8 @@ int encode_snssai(SNSSAI snssai, uint8_t iei, uint8_t* buffer, uint32_t len) {
  ielen = snssai.len;
-  if (snssai.sd == 0) ielen = 1;  // Don't include SD if it = 0
+  if (snssai.sd == 0xffffff)
+    ielen = SST_LENGTH;  // TODO: Don't include SD if it = 0xffffff
  *(buffer + encoded) = ielen;
  encoded++;

--- a/src/pfcp/3gpp_29.244.cpp
+++ b/src/pfcp/3gpp_29.244.cpp
@@ -378,34 +378,34 @@ pfcp_ie* pfcp_ie::new_pfcp_ie_from_stream(std::istream& is) {
        //        pfcp_measurement_method_ie(tlv); ie->load_from(is); return ie;
        //      }
        //      break;
-        //    case PFCP_IE_USAGE_REPORT_TRIGGER: {
+      case PFCP_IE_USAGE_REPORT_TRIGGER: {
-        //        pfcp_usage_report_trigger_ie *ie = new
+        pfcp_usage_report_trigger_ie* ie =
-        //        pfcp_usage_report_trigger_ie(tlv); ie->load_from(is); return
+            new pfcp_usage_report_trigger_ie(tlv);
-        //        ie;
+        ie->load_from(is);
-        //      }
+        return ie;
-        //      break;
+      } break;
-        //    case PFCP_IE_MEASUREMENT_PERIOD: {
+      case PFCP_IE_MEASUREMENT_PERIOD: {
-        //        pfcp_measurement_period_ie *ie = new
+        pfcp_measurement_period_ie* ie = new pfcp_measurement_period_ie(tlv);
-        //        pfcp_measurement_period_ie(tlv); ie->load_from(is); return ie;
+        ie->load_from(is);
-        //      }
+        return ie;
-        //      break;
+      } break;
        //    case PFCP_IE_FQ_CSID: {
        //        pfcp_fq_csid_ie *ie = new pfcp_fq_csid_ie(tlv);
        //        ie->load_from(is);
        //        return ie;
        //      }
        //      break;
-        //    case PFCP_IE_VOLUME_MEASUREMENT: {
+      case PFCP_IE_VOLUME_MEASUREMENT: {
-        //        pfcp_volume_measurement_ie *ie = new
+        pfcp_volume_measurement_ie* ie = new pfcp_volume_measurement_ie(tlv);
-        //        pfcp_volume_measurement_ie(tlv); ie->load_from(is); return ie;
+        ie->load_from(is);
-        //      }
+        return ie;
-        //      break;
+      } break;
-        //    case PFCP_IE_DURATION_MEASUREMENT: {
+      case PFCP_IE_DURATION_MEASUREMENT: {
-        //        pfcp_duration_measurement_ie *ie = new
+        pfcp_duration_measurement_ie* ie =
-        //        pfcp_duration_measurement_ie(tlv); ie->load_from(is); return
+            new pfcp_duration_measurement_ie(tlv);
-        //        ie;
+        ie->load_from(is);
-        //      }
+        return ie;
-        //      break;
+      } break;
        //    case PFCP_IE_APPLICATION_DETECTION_INFORMATION: {
        //        pfcp_application_detection_information_ie *ie = new
        //        pfcp_application_detection_information_ie(tlv);
@@ -413,18 +413,17 @@ pfcp_ie* pfcp_ie::new_pfcp_ie_from_stream(std::istream& is) {
        //        return ie;
        //      }
        //      break;
-        //    case PFCP_IE_TIME_OF_FIRST_PACKET: {
+      case PFCP_IE_TIME_OF_FIRST_PACKET: {
-        //        pfcp_time_of_first_packet_ie *ie = new
+        pfcp_time_of_first_packet_ie* ie =
-        //        pfcp_time_of_first_packet_ie(tlv); ie->load_from(is); return
+            new pfcp_time_of_first_packet_ie(tlv);
-        //        ie;
+        ie->load_from(is);
-        //      }
+        return ie;
-        //      break;
+      } break;
-        //    case PFCP_IE_TIME_OF_LAST_PACKET: {
+      case PFCP_IE_TIME_OF_LAST_PACKET: {
-        //        pfcp_time_of_last_packet_ie *ie = new
+        pfcp_time_of_last_packet_ie* ie = new pfcp_time_of_last_packet_ie(tlv);
-        //        pfcp_time_of_last_packet_ie(tlv); ie->load_from(is); return
+        ie->load_from(is);
-        //        ie;
+        return ie;
-        //      }
+      } break;
-        //      break;
        //    case PFCP_IE_QUOTA_HOLDING_TIME: {
        //        pfcp_quota_holding_time_ie *ie = new
        //        pfcp_quota_holding_time_ie(tlv); ie->load_from(is); return ie;
@@ -448,18 +447,16 @@ pfcp_ie* pfcp_ie::new_pfcp_ie_from_stream(std::istream& is) {
        //        return ie;
        //      }
        //      break;
-        //    case PFCP_IE_START_TIME: {
+      case PFCP_IE_START_TIME: {
-        //        pfcp_start_time_ie *ie = new pfcp_start_time_ie(tlv);
+        pfcp_start_time_ie* ie = new pfcp_start_time_ie(tlv);
-        //        ie->load_from(is);
+        ie->load_from(is);
-        //        return ie;
+        return ie;
-        //      }
+      } break;
-        //      break;
+      case PFCP_IE_END_TIME: {
-        //    case PFCP_IE_END_TIME: {
+        pfcp_end_time_ie* ie = new pfcp_end_time_ie(tlv);
-        //        pfcp_end_time_ie *ie = new pfcp_end_time_ie(tlv);
+        ie->load_from(is);
-        //        ie->load_from(is);
+        return ie;
-        //        return ie;
+      } break;
-        //      }
-        //      break;
        //    case PFCP_IE_QUERY_URR: {
        //        pfcp_query_urr_ie *ie = new pfcp_query_urr_ie(tlv);
        //        ie->load_from(is);
@@ -482,13 +479,12 @@ pfcp_ie* pfcp_ie::new_pfcp_ie_from_stream(std::istream& is) {
        //        return ie;
        //      }
        //      break;
-        //    case PFCP_IE_USAGE_REPORT_WITHIN_SESSION_REPORT_REQUEST: {
+      case PFCP_IE_USAGE_REPORT_WITHIN_SESSION_REPORT_REQUEST: {
-        //        pfcp_usage_report_within_session_report_request_ie *ie = new
+        pfcp_usage_report_within_session_report_request_ie* ie =
-        //        pfcp_usage_report_within_session_report_request_ie(tlv);
+            new pfcp_usage_report_within_session_report_request_ie(tlv);
-        //        ie->load_from(is);
+        ie->load_from(is);
-        //        return ie;
+        return ie;
-        //      }
+      } break;
-        //      break;
      case PFCP_IE_URR_ID: {
        pfcp_urr_id_ie* ie = new pfcp_urr_id_ie(tlv);
        ie->load_from(is);
@@ -622,12 +618,11 @@ pfcp_ie* pfcp_ie::new_pfcp_ie_from_stream(std::istream& is) {
        //        pfcp_remote_gtp_u_peer_ie(tlv); ie->load_from(is); return ie;
        //      }
        //      break;
-        //    case PFCP_IE_UR_SEQN: {
+      case PFCP_IE_UR_SEQN: {
-        //        pfcp_ur_seqn_ie *ie = new pfcp_ur_seqn_ie(tlv);
+        pfcp_ur_seqn_ie* ie = new pfcp_ur_seqn_ie(tlv);
-        //        ie->load_from(is);
+        ie->load_from(is);
-        //        return ie;
+        return ie;
-        //      }
+      } break;
-        //      break;
        //    case PFCP_IE_UPDATE_DUPLICATING_PARAMETERS: {
        //        pfcp_update_duplicating_parameters_ie *ie = new
        //        pfcp_update_duplicating_parameters_ie(tlv); ie->load_from(is);
@@ -1411,6 +1406,12 @@ pfcp_msg::pfcp_msg(const pfcp_session_report_request& pfcp_ies)
        new pfcp_downlink_data_report_ie(pfcp_ies.downlink_data_report.second));
    add_ie(sie);
  }
+  if (pfcp_ies.usage_report.first) {
+    std::shared_ptr<pfcp_usage_report_within_session_report_request_ie> sie(
+        new pfcp_usage_report_within_session_report_request_ie(
+            pfcp_ies.usage_report.second));
+    add_ie(sie);
+  }
  // TODO std::pair<bool, pfcp::usage_report_within_pfcp_session_report_request>
  // usage_report;
  // TODO std::pair<bool, pfcp::error_indication_report>

--- a/src/pfcp/3gpp_29.244.hpp
+++ b/src/pfcp/3gpp_29.244.hpp
--- a/src/pfcp/msg_pfcp.hpp
+++ b/src/pfcp/msg_pfcp.hpp
@@ -5100,6 +5100,7 @@ class usage_report_within_pfcp_session_report_request
  // std::pair<bool, pfcp::event_reporting>                   event_reporting;
  std::pair<bool, pfcp::ethernet_traffic_information>
      ethernet_traffic_information;
+  std::pair<bool, pfcp::enterprise_specific_t> enterprise_specific;
  usage_report_within_pfcp_session_report_request()
      : urr_id(),
@@ -5117,7 +5118,8 @@ class usage_report_within_pfcp_session_report_request
        usage_information(),
        query_urr_reference(),
        // event_reporting(),
-        ethernet_traffic_information() {}
+        ethernet_traffic_information(),
+        enterprise_specific() {}
  usage_report_within_pfcp_session_report_request(
      const usage_report_within_pfcp_session_report_request& u)
@@ -5136,7 +5138,8 @@ class usage_report_within_pfcp_session_report_request
        usage_information(u.usage_information),
        query_urr_reference(u.query_urr_reference),
        // event_reporting(u.event_reporting),
-        ethernet_traffic_information(u.ethernet_traffic_information) {}
+        ethernet_traffic_information(u.ethernet_traffic_information),
+        enterprise_specific(u.enterprise_specific) {}
  // virtual ~usage_report_within_pfcp_session_report_request() {};
  void set(const pfcp::urr_id_t& v) {
@@ -5201,6 +5204,10 @@ class usage_report_within_pfcp_session_report_request
    ethernet_traffic_information.first  = true;
    ethernet_traffic_information.second = v;
  }
+  void set(const pfcp::enterprise_specific_t& v) {
+    enterprise_specific.first  = true;
+    enterprise_specific.second = v;
+  }
  bool get(pfcp::urr_id_t& v) const {
    if (urr_id.first) {
@@ -5300,6 +5307,13 @@ class usage_report_within_pfcp_session_report_request
    }
    return false;
  }
+  bool get(pfcp::enterprise_specific_t& v) const {
+    if (enterprise_specific.first) {
+      v = enterprise_specific.second;
+      return true;
+    }
+    return false;
+  }
  // bool get(pfcp::event_reporting& v) const {if (event_reporting.first) {v =
  // event_reporting.second;return true;}return false;}
  bool get(pfcp::ethernet_traffic_information& v) const {
@@ -7244,15 +7258,16 @@ class pfcp_session_report_request : public pfcp_ies_container {
        overload_control_information(),
        additional_usage_reports_information() {}
-  pfcp_session_report_request(const pfcp_session_report_request& i)
+  pfcp_session_report_request(const pfcp_session_report_request& i) {
-      : report_type(i.report_type),
+    report_type                  = i.report_type;
-        downlink_data_report(i.downlink_data_report),
+    downlink_data_report         = i.downlink_data_report;
-        usage_report(i.usage_report),
+    usage_report                 = i.usage_report;
-        error_indication_report(i.error_indication_report),
+    error_indication_report      = i.error_indication_report;
-        load_control_information(i.load_control_information),
+    load_control_information     = i.load_control_information;
-        overload_control_information(i.overload_control_information),
+    overload_control_information = i.overload_control_information;
-        additional_usage_reports_information(
+    additional_usage_reports_information =
-            i.additional_usage_reports_information) {}
+        i.additional_usage_reports_information;
+  }
  const char* get_msg_name() const { return "PFCP_SESSION_REPORT_REQUEST"; };

--- a/src/smf_app/smf_app.cpp
+++ b/src/smf_app/smf_app.cpp
@@ -785,8 +785,8 @@ void smf_app::handle_pdu_session_create_sm_context_request(
  std::string n1_sm_message, n1_sm_message_hex;
  nas_message_t decoded_nas_msg       = {};
  cause_value_5gsm_e cause_n1         = {cause_value_5gsm_e::CAUSE_0_UNKNOWN};
-  pdu_session_type_t pdu_session_type = {.pdu_session_type =
+  pdu_session_type_t pdu_session_type = {
-                                             PDU_SESSION_TYPE_E_IPV4};
+      .pdu_session_type = PDU_SESSION_TYPE_E_IPV4};
  // Step 1. Decode NAS and get the necessary information
  int decoder_rc = smf_n1::get_instance().decode_n1_sm_container(
@@ -853,8 +853,8 @@ void smf_app::handle_pdu_session_create_sm_context_request(
  snssai_t snssai         = smreq->req.get_snssai();
  Logger::smf_app().info(
      "Handle a PDU Session Create SM Context Request message from AMF, "
-      "SUPI " SUPI_64_FMT ", SNSSAI SST %d, SD %s",
+      "SUPI " SUPI_64_FMT ", SNSSAI SST %d, SD %ld (0x%x)",
-      supi64, snssai.sST, snssai.sD.c_str());
+      supi64, snssai.sst, snssai.sd, snssai.sd);
  // Step 2. Verify Procedure transaction id, pdu session id, message type,
  // request type, etc.
@@ -1878,8 +1878,8 @@ bool smf_app::get_session_management_subscription_data(
      std::make_shared<dnn_configuration_t>();
  for (auto sub : smf_cfg.session_management_subscriptions) {
-    if ((0 == dnn.compare(sub.dnn)) and (snssai.sST == sub.single_nssai.sST) and
+    if ((0 == dnn.compare(sub.dnn)) and (snssai.sst == sub.single_nssai.sst) and
-        (0 == snssai.sD.compare(sub.single_nssai.sD))) {
+        (snssai.sd == sub.single_nssai.sd)) {
      // PDU Session Type
      pdu_session_type_t pdu_session_type(
          pdu_session_type_e::PDU_SESSION_TYPE_E_IPV4);
@@ -2278,14 +2278,14 @@ void smf_app::generate_smf_profile() {
  for (auto sms : smf_cfg.session_management_subscriptions) {
    // SNSSAIS
    snssai_t snssai = {};
-    snssai.sD       = sms.single_nssai.sD;
+    snssai.sd       = sms.single_nssai.sd;
-    snssai.sST      = sms.single_nssai.sST;
+    snssai.sst      = sms.single_nssai.sst;
    // Verify if this SNSSAI exist
    std::vector<snssai_t> ss = {};
    nf_instance_profile.get_nf_snssais(ss);
    bool found = false;
    for (auto it : ss) {
-      if ((it.sD == snssai.sD) and (it.sST == snssai.sST)) {
+      if ((it.sd == snssai.sd) and (it.sst == snssai.sst)) {
        found = true;
        break;
      }
@@ -2296,8 +2296,8 @@ void smf_app::generate_smf_profile() {
    dnn_smf_info_item_t dnn_item         = {.dnn = sms.dnn};
    snssai_smf_info_item_t smf_info_item = {};
    smf_info_item.dnn_smf_info_list.push_back(dnn_item);
-    smf_info_item.snssai.sD  = sms.single_nssai.sD;
+    smf_info_item.snssai.sd  = sms.single_nssai.sd;
-    smf_info_item.snssai.sST = sms.single_nssai.sST;
+    smf_info_item.snssai.sst = sms.single_nssai.sst;
    nf_instance_profile.add_smf_info_item(smf_info_item);
  }

--- a/src/smf_app/smf_app.hpp
+++ b/src/smf_app/smf_app.hpp
@@ -193,6 +193,26 @@ class smf_app {
      protocol_configuration_options_t& pco_resp,
      const pco_protocol_or_container_id_t* const poc_id);
+  /*
+   * process_pco_p_cscf_request
+   * @param [protocol_configuration_options_t &] pco_resp
+   * @param [pco_protocol_or_container_id_t *const] proc_id
+   * @return
+   */
+  int process_pco_p_cscf_request(
+      protocol_configuration_options_t& pco_resp,
+      const pco_protocol_or_container_id_t* const poc_id);
+  /*
+   * process_pco_p_cscf_v6_request
+   * @param [protocol_configuration_options_t &] pco_resp
+   * @param [pco_protocol_or_container_id_t *const] proc_id
+   * @return
+   */
+  int process_pco_p_cscf_v6_request(
+      protocol_configuration_options_t& pco_resp,
+      const pco_protocol_or_container_id_t* const poc_id);
 public:
  explicit smf_app(const std::string& config_file);
  smf_app(smf_app const&) = delete;

--- a/src/smf_app/smf_config.cpp
+++ b/src/smf_app/smf_config.cpp
@@ -50,6 +50,7 @@
 #include "logger.hpp"
 #include "fqdn.hpp"
 #include "smf_app.hpp"
+#include "3gpp_conversions.hpp"
 using namespace std;
 using namespace libconfig;
@@ -442,6 +443,26 @@ int smf_config::load(const string& config_file) {
        util::trim(astring).c_str(), default_dns_secv4,
        "BAD IPv4 ADDRESS FORMAT FOR DEFAULT DNS !");
+    // Default CSCF
+    smf_cfg.lookupValue(SMF_CONFIG_STRING_DEFAULT_CSCF_IPV4_ADDRESS, astring);
+    IPV4_STR_ADDR_TO_INADDR(
+        util::trim(astring).c_str(), default_cscfv4,
+        "BAD IPv4 ADDRESS FORMAT FOR DEFAULT CSCF !");
+    smf_cfg.lookupValue(SMF_CONFIG_STRING_DEFAULT_CSCF_IPV6_ADDRESS, astring);
+    if (inet_pton(AF_INET6, util::trim(astring).c_str(), buf_in6_addr) == 1) {
+      memcpy(&default_cscfv6, buf_in6_addr, sizeof(struct in6_addr));
+    } else {
+      Logger::smf_app().error(
+          "CONFIG : BAD ADDRESS in " SMF_CONFIG_STRING_DEFAULT_CSCF_IPV6_ADDRESS
+          " %s",
+          astring.c_str());
+      throw(
+          "CONFIG : BAD ADDRESS in " SMF_CONFIG_STRING_DEFAULT_CSCF_IPV6_ADDRESS
+          " %s",
+          astring.c_str());
+    }
    smf_cfg.lookupValue(SMF_CONFIG_STRING_DEFAULT_DNS_IPV6_ADDRESS, astring);
    if (inet_pton(AF_INET6, util::trim(astring).c_str(), buf_in6_addr) == 1) {
      memcpy(&default_dnsv6, buf_in6_addr, sizeof(struct in6_addr));
@@ -530,6 +551,14 @@ int smf_config::load(const string& config_file) {
        use_nwi = false;
      }
+      support_features.lookupValue(
+          SMF_CONFIG_STRING_SUPPORT_FEATURES_ENABLE_USAGE_REPORTING, opt);
+      if (boost::iequals(opt, "yes")) {
+        enable_ur = true;
+      } else {
+        enable_ur = false;
+      }
    } catch (const SettingNotFoundException& nfex) {
      Logger::smf_app().error(
          "%s : %s, using defaults", nfex.what(), nfex.getPath());
@@ -774,7 +803,7 @@ int smf_config::load(const string& config_file) {
        session_management_subscription_t sub_item = {};
        unsigned int nssai_sst                      = 0;
-        string nssai_sd                             = {};
+        string nssai_sd                             = SD_NO_VALUE_STR;
        string dnn                                  = {};
        string default_session_type                 = {};
        unsigned int default_ssc_mode               = 0;
@@ -814,9 +843,9 @@ int smf_config::load(const string& config_file) {
            SMF_CONFIG_STRING_SESSION_AMBR_UL, session_ambr_ul);
        session_management_subscription_cfg.lookupValue(
            SMF_CONFIG_STRING_SESSION_AMBR_DL, session_ambr_dl);
+        sub_item.single_nssai.sst = nssai_sst;
-        sub_item.single_nssai.sST           = nssai_sst;
+        sub_item.single_nssai.sd  = SD_NO_VALUE;
-        sub_item.single_nssai.sD            = nssai_sd;
+        xgpp_conv::sd_string_to_int(nssai_sd, sub_item.single_nssai.sd);
        sub_item.session_type               = default_session_type;
        sub_item.dnn                        = dnn;
        sub_item.ssc_mode                   = default_ssc_mode;
@@ -868,7 +897,6 @@ void smf_config::display() {
    n4.thread_rd_sched_params.sched_policy); Logger::smf_app().info( "
    Scheduling prio .....: %d", n4.thread_rd_sched_params.sched_priority);
-    Logger::smf_app().info("- ITTI Timer Task Threading:");
    Logger::smf_app().info(
        "    CPU id ..............: %d", itti.itti_timer_sched_params.cpu_id);
    Logger::smf_app().info(
@@ -966,6 +994,12 @@ void smf_config::display() {
    Logger::smf_app().info("    Secondary DNS v6 ....: %s", str_addr6);
  }
+  Logger::smf_app().info(
+      "   CSCF .........: %s", inet_ntoa(*((struct in_addr*) &default_cscfv4)));
+  if (inet_ntop(AF_INET6, &default_cscfv6, str_addr6, sizeof(str_addr6))) {
+    Logger::smf_app().info("    CSCF v6 ......: %s", str_addr6);
+  }
  Logger::smf_app().info("- Default UE MTU: %d", ue_mtu);
  Logger::smf_app().info("- Supported Features:");
  Logger::smf_app().info(
@@ -1024,10 +1058,15 @@ void smf_config::display() {
    for (auto sub : session_management_subscriptions) {
      Logger::smf_app().info(
          "    Session Management Subscription Data %d:", index);
+      if (sub.single_nssai.sd != SD_NO_VALUE) {
        Logger::smf_app().info(
-          "        " SMF_CONFIG_STRING_NSSAI_SST
+            "        SST, SD: %d, %ld (0x%x)", sub.single_nssai.sst,
-          ":  %d, " SMF_CONFIG_STRING_NSSAI_SD " %s",
+            sub.single_nssai.sd, sub.single_nssai.sd);
-          sub.single_nssai.sST, sub.single_nssai.sD.c_str());
+      } else {
+        Logger::smf_app().info("        SST: %d", sub.single_nssai.sst);
+      }
      Logger::smf_app().info(
          "        " SMF_CONFIG_STRING_DNN ": %s", sub.dnn.c_str());
      Logger::smf_app().info(

--- a/src/smf_app/smf_config.hpp
+++ b/src/smf_app/smf_config.hpp
@@ -67,6 +67,9 @@
 #define SMF_CONFIG_STRING_IPV4_ADDRESS_RANGE_DELIMITER "-"
 #define SMF_CONFIG_STRING_IPV6_ADDRESS_PREFIX_DELIMITER "/"
 #define SMF_CONFIG_STRING_DEFAULT_DNS_IPV4_ADDRESS "DEFAULT_DNS_IPV4_ADDRESS"
+#define SMF_CONFIG_STRING_DEFAULT_CSCF_IPV4_ADDRESS "DEFAULT_CSCF_IPV4_ADDRESS"
+#define SMF_CONFIG_STRING_DEFAULT_CSCF_IPV6_ADDRESS "DEFAULT_CSCF_IPV6_ADDRESS"
 #define SMF_CONFIG_STRING_DEFAULT_DNS_SEC_IPV4_ADDRESS                         \
  "DEFAULT_DNS_SEC_IPV4_ADDRESS"
 #define SMF_CONFIG_STRING_DEFAULT_DNS_IPV6_ADDRESS "DEFAULT_DNS_IPV6_ADDRESS"
@@ -149,6 +152,8 @@
 #define SMF_CONFIG_STRING_SUPPORT_FEATURES_SBI_HTTP_VERSION "HTTP_VERSION"
 #define SMF_CONFIG_STRING_SUPPORT_FEATURES_USE_NETWORK_INSTANCE                \
  "USE_NETWORK_INSTANCE"
+#define SMF_CONFIG_STRING_SUPPORT_FEATURES_ENABLE_USAGE_REPORTING              \
+  "ENABLE_USAGE_REPORTING"
 #define SMF_MAX_ALLOCATED_PDN_ADDRESSES 1024
@@ -217,10 +222,11 @@ class smf_config {
  struct in_addr default_dnsv4;
  struct in_addr default_dns_secv4;
+  struct in_addr default_cscfv4;
  struct in6_addr default_dnsv6;
  struct in6_addr default_dns_secv6;
  std::map<std::string, dnn_t> dnns;
+  struct in6_addr default_cscfv6;
  bool force_push_pco;
  uint ue_mtu;
@@ -231,6 +237,7 @@ class smf_config {
  bool use_fqdn_dns;
  unsigned int http_version;
  bool use_nwi;
+  bool enable_ur;
  struct {
    struct in_addr ipv4_addr;

--- a/src/smf_app/smf_context.cpp
+++ b/src/smf_app/smf_context.cpp
--- a/src/smf_app/smf_context.hpp
+++ b/src/smf_app/smf_context.hpp
@@ -448,6 +448,20 @@ class smf_pdu_session : public std::enable_shared_from_this<smf_pdu_session> {
   */
  pdu_session_type_t get_pdu_session_type() const;
+  /*
+   * Get URR_ID associated with this PDU Session
+   * @param void
+   * @return uint32_t: urrId
+   */
+  uint32_t get_urr_id() const;
+  /*
+   * Set URR_ID associated with this PDU Session
+   * @param [const uint32_t&] urrId: URR_ID
+   * @return void
+   */
+  void set_urr_id(const uint32_t& urrId);
  /*
   * Get NWI associated with this PDU Session
   * @param void
@@ -548,6 +562,9 @@ class smf_pdu_session : public std::enable_shared_from_this<smf_pdu_session> {
  std::string dnn;  // associated DNN
  snssai_t snssai;  // associated SNSSAI
+  uint32_t
+      urr_Id;  // We maintain URR ID to reuse for DL PDR (session modification)
  std::string nwi_access;  // associated nwi_access
  std::string nwi_core;    // associated nwi_core
@@ -1065,6 +1082,14 @@ class smf_context : public std::enable_shared_from_this<smf_context> {
      const snssai_t& snssai,
      std::shared_ptr<session_management_subscription>& ss);
+  /*
+   * Get a unique key from SNSSAI
+   * @param [const snssai_t&] snssai
+   * @param [uint32_t&] key: generated key
+   * @return void
+   */
+  void get_snssai_key(const snssai_t& snssai, uint32_t& key);
  /*
   * Convert all members of this class to string for logging
   * @return std::string
@@ -1333,8 +1358,8 @@ class smf_context : public std::enable_shared_from_this<smf_context> {
 private:
  std::vector<std::shared_ptr<smf_procedure>> pending_procedures;
-  // snssai-sst <-> session management subscription
+  // snssai <-> session management subscription
-  std::map<uint8_t, std::shared_ptr<session_management_subscription>>
+  std::map<uint32_t, std::shared_ptr<session_management_subscription>>
      dnn_subscriptions;
  std::map<pdu_session_id_t, std::shared_ptr<smf_pdu_session>>
      pdu_sessions;  // Store all PDU Sessions associated with this UE

--- a/src/smf_app/smf_n1.cpp
+++ b/src/smf_app/smf_n1.cpp
@@ -201,24 +201,20 @@ bool smf_n1::create_n1_pdu_session_establishment_accept(
  // sm_msg->pdu_session_establishment_accept.gprstimer.timeValue = 0;
  // SNSSAI
+  if (sm_context_res.get_snssai().sd == SD_NO_VALUE) {
+    sm_msg->pdu_session_establishment_accept.snssai.len = SST_LENGTH;
+  } else {
    sm_msg->pdu_session_establishment_accept.snssai.len = SST_AND_SD_LENGTH;
+  }
  sm_msg->pdu_session_establishment_accept.snssai.sst =
-      sm_context_res.get_snssai().sST;
+      sm_context_res.get_snssai().sst;
-  try {
  sm_msg->pdu_session_establishment_accept.snssai.sd =
-        std::stoul(sm_context_res.get_snssai().sD, nullptr, 10);
+      sm_context_res.get_snssai().sd;
-  } catch (const std::exception& e) {
-    Logger::smf_n1().warn(
-        "Error when converting from string to int for snssai.SD, error: %s",
-        e.what());
-    //"no SD value associated with the SST"
-    sm_msg->pdu_session_establishment_accept.snssai.sd = 0xFFFFFF;
-  }
  Logger::smf_n1().debug(
-      "SNSSAI SST %d, SD %#0x",
+      "SNSSAI SST %d, SD %ld (0x%x)",
      sm_msg->pdu_session_establishment_accept.snssai.sst,
+      sm_msg->pdu_session_establishment_accept.snssai.sd,
      sm_msg->pdu_session_establishment_accept.snssai.sd);
  // TODO: AlwaysonPDUSessionIndication

--- a/src/smf_app/smf_n4.cpp
+++ b/src/smf_app/smf_n4.cpp
@@ -691,11 +691,11 @@ void smf_n4::handle_receive_session_deletion_response(
 //------------------------------------------------------------------------------
 void smf_n4::handle_receive_session_report_request(
    pfcp::pfcp_msg& msg, const endpoint& remote_endpoint) {
+  Logger::smf_n4().info("Received N4 SESSION REPORT REQUEST from an UPF");
  bool error                                    = true;
  uint64_t trxn_id                              = 0;
  pfcp_session_report_request msg_ies_container = {};
  msg.to_core_type(msg_ies_container);
  handle_receive_message_cb(msg, remote_endpoint, TASK_SMF_N4, error, trxn_id);
  if (!error) {
    std::shared_ptr<itti_n4_session_report_request> itti_msg =
@@ -705,6 +705,7 @@ void smf_n4::handle_receive_session_report_request(
    itti_msg->r_endpoint = remote_endpoint;
    itti_msg->trxn_id    = trxn_id;
    itti_msg->seid       = msg.get_seid();
    int ret = itti_inst->send_msg(itti_msg);
    if (RETURNok != ret) {
      Logger::smf_n4().error(

--- a/src/smf_app/smf_pco.cpp
+++ b/src/smf_app/smf_pco.cpp
@@ -335,6 +335,57 @@ int smf_app::process_pco_link_mtu_request(
  return pco_push_protocol_or_container_id(pco_resp, &poc_id_resp);
 }
+//------------------------------------------------------------------------------
+int smf_app::process_pco_p_cscf_request(
+    protocol_configuration_options_t& pco_resp,
+    const pco_protocol_or_container_id_t* const poc_id) {
+  in_addr_t cscf_ipv4_addr                   = smf_cfg.default_cscfv4.s_addr;
+  pco_protocol_or_container_id_t poc_id_resp = {0};
+  uint8_t cscf_array[4];
+  Logger::smf_app().debug("PCO: Protocol identifier P CSCF Request");
+  poc_id_resp.protocol_id = PCO_CONTAINER_IDENTIFIER_P_CSCF_IPV4_ADDRESS;
+  poc_id_resp.length_of_protocol_id_contents = 4;
+  cscf_array[0] = (uint8_t)(cscf_ipv4_addr & 0x000000FF);
+  cscf_array[1] = (uint8_t)((cscf_ipv4_addr >> 8) & 0x000000FF);
+  cscf_array[2] = (uint8_t)((cscf_ipv4_addr >> 16) & 0x000000FF);
+  cscf_array[3] = (uint8_t)((cscf_ipv4_addr >> 24) & 0x000000FF);
+  std::string tmp_s((const char*) &cscf_array[0], sizeof(cscf_array));
+  poc_id_resp.protocol_id_contents = tmp_s;
+  return pco_push_protocol_or_container_id(pco_resp, &poc_id_resp);
+}
+//------------------------------------------------------------------------------
+int smf_app::process_pco_p_cscf_v6_request(
+    protocol_configuration_options_t& pco_resp,
+    const pco_protocol_or_container_id_t* const poc_id) {
+  in6_addr cscf_ipv6_addr                    = smf_cfg.default_cscfv6;
+  pco_protocol_or_container_id_t poc_id_resp = {0};
+  uint8_t cscfv6_array[16];
+  Logger::smf_app().debug("PCO: Protocol identifier P CSCF v6 Request");
+  poc_id_resp.protocol_id = PCO_CONTAINER_IDENTIFIER_P_CSCF_IPV6_ADDRESS;
+  poc_id_resp.length_of_protocol_id_contents = 16;
+  char str_addr6[INET6_ADDRSTRLEN];
+  if (inet_ntop(AF_INET6, &cscf_ipv6_addr, str_addr6, sizeof(str_addr6))) {
+    std::string ipv6_addr_str((char*) str_addr6, INET6_ADDRSTRLEN);
+    Logger::smf_app().info(" CSCF Ipv6 address....: %s", ipv6_addr_str.c_str());
+    unsigned char buf_in6_addr[sizeof(struct in6_addr)];
+    if (inet_pton(AF_INET6, util::trim(ipv6_addr_str).c_str(), buf_in6_addr) ==
+        1) {
+      for (int i = 0; i <= 15; i++)
+        cscfv6_array[i] = (uint8_t)(buf_in6_addr[i]);
+    }
+  }
+  std::string tmp_s((const char*) &cscfv6_array[0], sizeof(cscfv6_array));
+  poc_id_resp.protocol_id_contents = tmp_s;
+  return pco_push_protocol_or_container_id(pco_resp, &poc_id_resp);
+}
 //------------------------------------------------------------------------------
 int smf_app::process_pco_request(
    const protocol_configuration_options_t& pco_req,
@@ -384,6 +435,17 @@ int smf_app::process_pco_request(
        pco_ids.ci_ipv4_link_mtu_request = true;
        break;
+      case PCO_CONTAINER_IDENTIFIER_P_CSCF_IPV6_ADDRESS_REQUEST:
+        process_pco_p_cscf_v6_request(
+            pco_resp, &pco_req.protocol_or_container_ids[id]);
+        pco_ids.ci_ipv6_p_cscf_request = true;
+        break;
+      case PCO_CONTAINER_IDENTIFIER_P_CSCF_IPV4_ADDRESS_REQUEST:
+        process_pco_p_cscf_request(
+            pco_resp, &pco_req.protocol_or_container_ids[id]);
+        pco_ids.ci_ipv4_p_cscf_request = true;
+        break;
      default:
        Logger::smf_app().warn(
            "PCO: Protocol/container identifier 0x%04X not supported now",

--- a/src/smf_app/smf_pco.hpp
+++ b/src/smf_app/smf_pco.hpp
@@ -48,6 +48,8 @@ typedef struct protocol_configuration_options_ids_s {
  uint8_t ci_ipv4_address_allocation_via_dhcpv4 : 1;
  uint8_t ci_ipv4_link_mtu_request : 1;
  uint8_t ci_dns_server_ipv6_address_request : 1;
+  uint8_t ci_ipv6_p_cscf_request : 1;
+  uint8_t ci_ipv4_p_cscf_request : 1;
 } protocol_configuration_options_ids_t;
 #endif
--- a/src/smf_app/smf_pfcp_association.cpp
+++ b/src/smf_app/smf_pfcp_association.cpp
@@ -467,20 +467,24 @@ bool pfcp_associations::select_up_node(
    Logger::smf_app().debug("UPF info: %s", upf_info.to_string().c_str());
    for (auto ui : upf_info.snssai_upf_info_list) {
-      if (ui.snssai == snssai) {
+      if (ui.snssai.sst == snssai.sst) {
+        if ((ui.snssai.sst <= SST_MAX_STANDARDIZED_VALUE) or
+            (snssai.sd == ui.snssai.sd)) {
          for (auto d : ui.dnn_upf_info_list) {
            if (d.dnn.compare(dnn) == 0) {
              node_id = it->second->node_id;
              Logger::smf_app().info(
-                "Select the UPF for the corresponding DNN %s, NSSSAI (SD: %s, "
+                  "Select the UPF for the corresponding DNN %s, NSSSAI (SST: "
-                "SST: %d) ",
+                  "%d, "
-                d.dnn.c_str(), snssai.sD.c_str(), snssai.sST);
+                  "SD: %ld (0x%x)) ",
+                  d.dnn.c_str(), snssai.sst, snssai.sd, snssai.sd);
              return true;
            }
          }
        }
      }
    }
+  }
  return false;
 }

--- a/src/smf_app/smf_procedure.cpp
+++ b/src/smf_app/smf_procedure.cpp
@@ -308,6 +308,28 @@ int session_create_sm_context_procedure::run(
  create_pdr.set(far_id);
  // TODO: list of Usage reporting Rule IDs
+  //-------------------
+  // IE create_urr ( Usage Reporting Rules)
+  //-------------------
+  if (smf_cfg.enable_ur) {
+    pfcp::urr_id_t urr_id = {};
+    sps->generate_urr_id(urr_id);
+    create_pdr.set(urr_id);
+    sps.get()->set_urr_id(urr_id.urr_id);
+    pfcp::create_urr create_urr                   = {};
+    pfcp::measurement_method_t measurement_method = {};
+    pfcp::measurement_period_t measurement_Period = {};
+    pfcp::reporting_triggers_t reporting_triggers = {};
+    // Hardcoded values for the moment
+    measurement_method.volum              = 1;   // Volume based usage report
+    measurement_Period.measurement_period = 10;  // Every 10 Sec
+    reporting_triggers.perio              = 1;   // Periodic usage report
+    create_urr.set(urr_id);
+    create_urr.set(measurement_method);
+    create_urr.set(measurement_Period);
+    create_urr.set(reporting_triggers);
+    n4_triggered->pfcp_ies.set(create_urr);
+  }
  // TODO: list of QoS Enforcement Rule IDs
  //-------------------
@@ -499,6 +521,9 @@ void session_create_sm_context_procedure::handle_itti_msg(
  Logger::smf_app().debug(
      "N1N2MessageTransfer will be sent to AMF with URL: %s", url.c_str());
+  // HTTP version
+  n11_triggered_pending->http_version = smf_cfg.http_version;
  // Fill the json part
  nlohmann::json json_data = {};
  // N1SM
@@ -517,9 +542,9 @@ void session_create_sm_context_procedure::handle_itti_msg(
    json_data["n2InfoContainer"]["smInfo"]["n2InfoContent"]["ngapData"]
             ["contentId"] = N2_SM_CONTENT_ID;  // NGAP part
    json_data["n2InfoContainer"]["smInfo"]["sNssai"]["sst"] =
-        n11_triggered_pending->res.get_snssai().sST;
+        n11_triggered_pending->res.get_snssai().sst;
    json_data["n2InfoContainer"]["smInfo"]["sNssai"]["sd"] =
-        n11_triggered_pending->res.get_snssai().sD;
+        std::to_string(n11_triggered_pending->res.get_snssai().sd);
    json_data["n2InfoContainer"]["ranInfo"] = "SM";
    // N1N2MsgTxfrFailureNotification
@@ -821,6 +846,12 @@ int session_update_sm_context_procedure::run(
          // pdi.set(local_fteid);
          pdi.set(ue_ip_address);
+          if (smf_cfg.enable_ur) {
+            pfcp::urr_id_t urr_Id = {};
+            urr_Id.urr_id         = sps.get()->get_urr_id();
+            create_pdr.set(urr_Id);
+          }
          create_pdr.set(pdr_id);
          create_pdr.set(precedence);
          create_pdr.set(pdi);
@@ -888,6 +919,12 @@ int session_update_sm_context_procedure::run(
          pdi.set(source_interface);
          pdi.set(ue_ip_address);
+          if (smf_cfg.enable_ur) {
+            pfcp::urr_id_t urr_Id = {};
+            urr_Id.urr_id         = sps.get()->get_urr_id();
+            update_pdr.set(urr_Id);
+          }
          update_pdr.set(flow.pdr_id_dl);
          update_pdr.set(precedence);
          update_pdr.set(pdi);

--- a/src/smf_app/smf_profile.cpp
+++ b/src/smf_app/smf_profile.cpp
@@ -203,7 +203,7 @@ void nf_profile::display() const {
    Logger::smf_app().debug("\tSNSSAI:");
  }
  for (auto s : snssais) {
-    Logger::smf_app().debug("\t\t SST %d, SD %s", s.sST, s.sD.c_str());
+    Logger::smf_app().debug("\t\t SST %d, SD %ld (0x%x)", s.sst, s.sd, s.sd);
  }
  if (!fqdn.empty()) {
    Logger::smf_app().debug("\tFQDN: %s", fqdn.c_str());
@@ -235,8 +235,8 @@ void nf_profile::to_json(nlohmann::json& data) const {
  data["sNssais"] = nlohmann::json::array();
  for (auto s : snssais) {
    nlohmann::json tmp = {};
-    tmp["sst"]         = s.sST;
+    tmp["sst"]         = s.sst;
-    tmp["sd"]          = s.sD;
+    tmp["sd"]          = std::to_string(s.sd);
    data["sNssais"].push_back(tmp);
  }
  if (!fqdn.empty()) {
@@ -282,8 +282,17 @@ void nf_profile::from_json(const nlohmann::json& data) {
  if (data.find("sNssais") != data.end()) {
    for (auto it : data["sNssais"]) {
      snssai_t s = {};
-      s.sST      = it["sst"].get<int>();
+      s.sst      = it["sst"].get<int>();
-      s.sD       = it["sd"].get<std::string>();
+      s.sd       = 0xFFFFFF;
+      try {
+        s.sd = std::stoul(it["sd"].get<std::string>(), nullptr, 10);
+      } catch (const std::exception& e) {
+        Logger::smf_app().warn(
+            "Error when converting from string to int for snssai.SD, error: %s",
+            e.what());
+      }
+      // s.sD       = it["sd"].get<std::string>();
      snssais.push_back(s);
    }
  }
@@ -384,7 +393,8 @@ void smf_profile::display() const {
  for (auto s : smf_info.snssai_smf_info_list) {
    Logger::smf_app().debug("\t\tParameters supported by the SMF:");
    Logger::smf_app().debug(
-        "\t\t\tSNSSAI (SST %d, SD %s)", s.snssai.sST, s.snssai.sD.c_str());
+        "\t\t\tSNSSAI (SST %d, SD %ld (0x%x))", s.snssai.sst, s.snssai.sd,
+        s.snssai.sd);
    for (auto d : s.dnn_smf_info_list) {
      Logger::smf_app().debug("\t\t\tDNN %s", d.dnn.c_str());
    }
@@ -430,8 +440,8 @@ void smf_profile::to_json(nlohmann::json& data) const {
  data["smfInfo"]["sNssaiSmfInfoList"] = nlohmann::json::array();
  for (auto s : smf_info.snssai_smf_info_list) {
    nlohmann::json tmp    = {};
-    tmp["sNssai"]["sst"]  = s.snssai.sST;
+    tmp["sNssai"]["sst"]  = s.snssai.sst;
-    tmp["sNssai"]["sd"]   = s.snssai.sD;
+    tmp["sNssai"]["sd"]   = std::to_string(s.snssai.sd);
    tmp["dnnSmfInfoList"] = nlohmann::json::array();
    for (auto d : s.dnn_smf_info_list) {
      nlohmann::json dnn_json = {};
@@ -464,9 +474,19 @@ void smf_profile::from_json(const nlohmann::json& data) {
        snssai_smf_info_item_t smf_info_item = {};
        if (it.find("sNssai") != it.end()) {
          if (it["sNssai"].find("sst") != it["sNssai"].end())
-            smf_info_item.snssai.sST = it["sNssai"]["sst"].get<int>();
+            smf_info_item.snssai.sst = it["sNssai"]["sst"].get<int>();
-          if (it["sNssai"].find("sd") != it["sNssai"].end())
+          if (it["sNssai"].find("sd") != it["sNssai"].end()) {
-            smf_info_item.snssai.sD = it["sNssai"]["sd"].get<std::string>();
+            smf_info_item.snssai.sd = 0xFFFFFF;
+            try {
+              smf_info_item.snssai.sd = std::stoul(
+                  it["sNssai"]["sd"].get<std::string>(), nullptr, 10);
+            } catch (const std::exception& e) {
+              Logger::smf_app().warn(
+                  "Error when converting from string to int for snssai.SD, "
+                  "error: %s",
+                  e.what());
+            }
+          }
        }
        if (it.find("dnnSmfInfoList") != it.end()) {
          for (auto d : it["dnnSmfInfoList"]) {
@@ -514,7 +534,8 @@ void upf_profile::display() const {
  for (auto s : upf_info.snssai_upf_info_list) {
    Logger::smf_app().debug("\t\tParameters supported by the UPF:");
    Logger::smf_app().debug(
-        "\t\t\tSNSSAI (SST %d, SD %s)", s.snssai.sST, s.snssai.sD.c_str());
+        "\t\t\tSNSSAI (SST %d, SD %ld (0x%x))", s.snssai.sst, s.snssai.sd,
+        s.snssai.sd);
    for (auto d : s.dnn_upf_info_list) {
      Logger::smf_app().debug("\t\t\tDNN %s", d.dnn.c_str());
    }
@@ -550,8 +571,8 @@ void upf_profile::to_json(nlohmann::json& data) const {
  data["upfInfo"]["sNssaiUpfInfoList"] = nlohmann::json::array();
  for (auto s : upf_info.snssai_upf_info_list) {
    nlohmann::json tmp    = {};
-    tmp["sNssai"]["sst"]  = s.snssai.sST;
+    tmp["sNssai"]["sst"]  = s.snssai.sst;
-    tmp["sNssai"]["sd"]   = s.snssai.sD;
+    tmp["sNssai"]["sd"]   = std::to_string(s.snssai.sd);
    tmp["dnnSmfInfoList"] = nlohmann::json::array();
    for (auto d : s.dnn_upf_info_list) {
      nlohmann::json dnn_json = {};
@@ -598,9 +619,19 @@ void upf_profile::from_json(const nlohmann::json& data) {
        snssai_upf_info_item_t upf_info_item = {};
        if (it.find("sNssai") != it.end()) {
          if (it["sNssai"].find("sst") != it["sNssai"].end())
-            upf_info_item.snssai.sST = it["sNssai"]["sst"].get<int>();
+            upf_info_item.snssai.sst = it["sNssai"]["sst"].get<int>();
-          if (it["sNssai"].find("sd") != it["sNssai"].end())
+          if (it["sNssai"].find("sd") != it["sNssai"].end()) {
-            upf_info_item.snssai.sD = it["sNssai"]["sd"].get<std::string>();
+            upf_info_item.snssai.sd = 0xFFFFFF;
+            try {
+              upf_info_item.snssai.sd = std::stoul(
+                  it["sNssai"]["sd"].get<std::string>(), nullptr, 10);
+            } catch (const std::exception& e) {
+              Logger::smf_app().warn(
+                  "Error when converting from string to int for snssai.SD, "
+                  "error: %s",
+                  e.what());
+            }
+          }
        }
        if (it.find("dnnUpfInfoList") != it.end()) {
          for (auto d : it["dnnUpfInfoList"]) {

--- a/src/smf_app/smf_sbi.cpp
+++ b/src/smf_app/smf_sbi.cpp
@@ -43,6 +43,7 @@
 #include "itti.hpp"
 #include "logger.hpp"
 #include "mime_parser.hpp"
+#include "3gpp_conversions.hpp"
 #include "smf.h"
 #include "smf_app.hpp"
 #include "smf_config.hpp"
@@ -844,8 +845,8 @@ bool smf_sbi::get_sm_data(
  std::string mnc         = {};
  conv::plmnToMccMnc(plmn, mcc, mnc);
-  query_str = "?single-nssai={\"sst\":" + std::to_string(snssai.sST) +
+  query_str = "?single-nssai={\"sst\":" + std::to_string(snssai.sst) +
-              ",\"sd\":\"" + snssai.sD + "\"}&dnn=" + dnn +
+              ",\"sd\":\"" + std::to_string(snssai.sd) + "\"}&dnn=" + dnn +
              "&plmn-id={\"mcc\":\"" + mcc + "\",\"mnc\":\"" + mnc + "\"}";
  std::string url =
      std::string(inet_ntoa(*((struct in_addr*) &smf_cfg.udm_addr.ipv4_addr))) +
@@ -906,13 +907,16 @@ bool smf_sbi::get_sm_data(
    if (jsonData.find("singleNssai") == jsonData.end()) return false;
    if (jsonData["singleNssai"].find("sst") != jsonData["singleNssai"].end()) {
      uint8_t sst = jsonData["singleNssai"]["sst"].get<uint8_t>();
-      if (sst != snssai.sST) {
+      if (sst != snssai.sst) {
        return false;
      }
    }
    if (jsonData["singleNssai"].find("sd") != jsonData["singleNssai"].end()) {
-      std::string sd = jsonData["singleNssai"]["sd"];
+      std::string sd_str = jsonData["singleNssai"]["sd"];
-      if (sd.compare(snssai.sD) != 0) {
+      uint32_t sd        = 0xFFFFFF;
+      xgpp_conv::sd_string_to_int(
+          jsonData["singleNssai"]["sd"].get<std::string>(), sd);
+      if (sd != snssai.sd) {
        return false;
      }
    }