Add multi-UE demo config used for ORS5 UE

ue/multi-ue-demo/ue-ifup

+#!/bin/bash
+# Copyright (C) 2022 Amarisoft
+# lteue PDN configurator script version 2022-08-19
+
+ue_id="$1"           # UE ID
+pdn_id="$2"          # PDN unique id (start from 0)
+ifname="$3"          # Interface name
+ipv4_addr="$4"       # IPv4 address
+ipv4_dns="$5"        # IPv4 DNS
+ipv6_local_addr="$6" # IPv6 local address
+ipv6_dns="$7"        # IPv6 DNS
+old_link_local=""
+
+#echo "Configure $ue_id/$pdn_id, tun=$ifname, ip=$ipv4_addr, dns=$ipv4_dns"
+
+ifname1="pdn$pdn_id"
+ip link set dev $ifname name $ifname1
+ifname="$ifname1"
+
+if [ "$ipv6_local_addr" != "" ] ; then
+    bash -c "echo '0' > /proc/sys/net/ipv6/conf/$ifname/disable_ipv6"
+    bash -c "echo '2' > /proc/sys/net/ipv6/conf/$ifname/accept_ra"
+    bash -c "echo '2' > /proc/sys/net/ipv6/conf/$ifname/router_solicitation_delay"
+    bash -c "echo '2' > /proc/sys/net/ipv6/conf/$ifname/autoconf"
+else
+    bash -c "echo '1' > /proc/sys/net/ipv6/conf/$ifname/disable_ipv6"
+fi
+
+if [ "$pdn_id" = "0" ] ; then
+    ifconfig lo up
+fi
+
+ifconfig $ifname up
+if [ "$ipv4_addr" != "" ] ; then
+    ifconfig $ifname $ipv4_addr/24
+    if [ "$pdn_id" = "0" ] ; then
+        ip route add default via $ipv4_addr
+    fi
+fi
+if [ "$ipv6_local_addr" != "" ] ; then
+    old_link_local=`ip addr show dev $ifname | sed -e's/^.*inet6 \([^ ]*\)\/.*$/\1/;t;d'`
+    if [ "$old_link_local" != "" ] ; then
+        ifconfig $ifname inet6 del $old_link_local/64
+    fi
+    ifconfig $ifname inet6 add $ipv6_local_addr/64
+fi
+
+iptables -t nat -D POSTROUTING -o pdn0 -j MASQUERADE
+ip6tables -t nat -D POSTROUTING -o pdn0 -j MASQUERADE
+iptables -t nat -A POSTROUTING -o pdn0 -j MASQUERADE
+ip6tables -t nat -A POSTROUTING -o pdn0 -j MASQUERADE
+ip -6 route add default via fe80::a1f0:e37f:f44c:907 dev pdn0
+echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
+echo 1 > /proc/sys/net/ipv4/conf/all/forwarding

ue/multi-ue-demo/ue.cfg

+{
+  log_options: "all.level=info,all.max_size=1",
+  log_filename: "/tmp/ue0.log",
+  com_addr: "0.0.0.0:9002",
+rf_driver: {
+    name: "sdr",
+    args: "dev0=/dev/sdr0",
+    rx_antenna:"tx_rx",
+},
+tx_gain: 20.0,
+rx_gain: 15.0,
+  cell_groups: [{
+    group_type: "nr",
+    multi_ue: false,
+    cells: [{
+      rf_port: 0,
+      bandwidth: 40,
+      band: 78,
+      dl_nr_arfcn: 646666,
+      ssb_nr_arfcn: 645984,
+      subcarrier_spacing: 30,
+      n_antenna_dl: 2,
+      n_antenna_ul: 2,
+    }],
+  }],
+  ue_list: [
+    {
+    as_release: 15,
+    ue_category: "nr",
+    tun_setup_script: "ue-ifup",
+    attach_pdn_type: "ipv4v6",
+    apn: "internet",
+    sim_algo: "milenage",
+    imsi: "001010000000486",
+    opc: "000102030405060708090A0B0C0D0E0F",
+    sqn: "000000000000",
+    K: "00112233445566778899AABBCCDDEEFF",
+    impu: "impu486",
+    impi: "impi486@amarisoft.com",
+    }
+  ],
+}