Files
openairinterface5g/tools/scripts/multi-ue.sh
Robert Schmidt 8107939f08 Change OAI license to CSSL v1.0 (and others)
- all RAN code, CI code, configuration files, dockerfiles, in CSSL v1.0
- all deployment code (openshift, charts, ancillary files like shell
  scripts), in MIT
- documentation in CC-BY-4.0
- exceptions might apply and are listed in NOTICE
- there is a new LICENSES folder with all licenses
- CONTRIBUTIONS.md has been updated accordingly

For automated changes based on OAI PL v1.1:

    perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.{c,h,cpp}
    perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.ts
    perl -i~ -0pe 's/<!--.*Licensed to the OpenAirInterface.*openairinterface.org\n.*-->/<!-- SPDX-License-Identifier: LicenseRef-CSSL-1.0 -->/s' **/*.xml

The rest (cmake, files with missing license, cmake) manually.
2026-03-27 16:36:37 +01:00

120 lines
3.4 KiB
Bash
Executable File

#!/bin/bash
# SPDX-License-Identifier: MIT
ue_id=-1
die() {
echo "$@"
exit 1
}
create_namespace() {
ue_id=$1
local name="ue$ue_id"
echo "creating namespace for UE ID ${ue_id} name ${name}"
ip netns add $name
ip link add v-eth$ue_id type veth peer name v-ue$ue_id
ip link set v-ue$ue_id netns $name
BASE_IP=$((200+ue_id))
ip addr add 10.$BASE_IP.1.100/24 dev v-eth$ue_id
ip link set v-eth$ue_id up
iptables -t nat -A POSTROUTING -s 10.$BASE_IP.1.0/255.255.255.0 -o lo -j MASQUERADE
iptables -A FORWARD -i lo -o v-eth$ue_id -j ACCEPT
iptables -A FORWARD -o lo -i v-eth$ue_id -j ACCEPT
ip netns exec $name ip link set dev lo up
ip netns exec $name ip addr add 10.$BASE_IP.1.$ue_id/24 dev v-ue$ue_id
ip netns exec $name ip link set v-ue$ue_id up
}
delete_namespace() {
local ue_id=$1
local name="ue$ue_id"
echo "deleting namespace for UE ID ${ue_id} name ${name}"
ip link delete v-eth$ue_id
ip netns delete $name
}
list_namespaces() {
ip netns list
}
open_namespace() {
[[ $ue_id -ge 1 ]] || die "error: no last UE processed"
local name="ue$ue_id"
echo "opening shell in namespace ${name}"
echo "type 'ip netns exec $name bash' in additional terminals"
ip netns exec $name bash
}
inter_namespace_communication() {
[[ $# -eq 2 ]] || die "error: expected 2 UE IDs"
local id1=$1
local id2=$2
[[ $id1 -ne $id2 ]] || die "error: UE IDs must be different"
local ns1="ue$id1"
local ns2="ue$id2"
local if1="v-inter-ue_${id1}${id2}"
local if2="v-inter-ue_${id2}${id1}"
ip netns list | grep -q "$ns1" || die "error: namespace $ns1 does not exist"
ip netns list | grep -q "$ns2" || die "error: namespace $ns2 does not exist"
local combo1="${id1}${id2}"
local combo2="${id2}${id1}"
local subnet
if [[ $combo1 -gt $combo2 ]]; then
subnet=$combo1
else
subnet=$combo2
fi
echo "Creating connection between $ns1 and $ns2 with subnet 172.16.$subnet.0/24"
ip link add $if1 type veth peer name $if2
ip link set $if1 netns $ns1
ip link set $if2 netns $ns2
ip netns exec $ns1 ip addr add 172.16.$subnet.$combo1/24 dev $if1
ip netns exec $ns2 ip addr add 172.16.$subnet.$combo2/24 dev $if2
ip netns exec $ns1 ip link set dev $if1 up
ip netns exec $ns2 ip link set dev $if2 up
echo "Connection established between $ns1 ($ns1: 172.16.$subnet.$combo1) and $ns2 ($ns2: 172.16.$subnet.$combo2)"
}
usage () {
echo "$1 -c <num>: create namespace \"ue<num>\""
echo "$1 -d <num>: delete namespace \"ue<num>\""
echo "$1 -e : execute shell in last processed namespace"
echo "$1 -l : list namespaces"
echo "$1 -o <num>: open shell in namespace \"ue<num>\""
echo "$1 -i <num1> <num2>: create inter-namespace communication between \"ue<num1>\" and \"ue<num2>\""
}
prog_name=$(basename $0)
[[ $(id -u) -eq 0 ]] || die "Please run as root"
[[ $# -eq 0 ]] && { usage $prog_name; die "error: no parameters given"; }
while getopts :c:d:i:ehlo: cmd
do
case "${cmd}" in
c) create_namespace ${OPTARG};;
d) delete_namespace ${OPTARG};;
e) open_namespace; exit;;
h) usage ${prog_name}; exit;;
l) list_namespaces;;
i) shift $((OPTIND-2))
[[ $# -ge 2 ]] || { usage ${prog_name}; die "error: -i requires two UE IDs"; }
inter_namespace_communication $1 $2
shift 2
OPTIND=1
;;
o) ue_id=${OPTARG}; open_namespace;;
?) usage ${prog_name}; die "Invalid option: -${OPTARG}";;
esac
done