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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,233 @@ | ||
| #!/usr/bin/env bash | ||
| # | ||
| # | ||
| # Copyright (c) 2021 Project CHIP Authors | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # 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. | ||
| # | ||
| # | ||
| # Description: | ||
| # This is a utility script that can be used by developers to do | ||
| # simulate a device and controller on the same linux machine. This | ||
| # script is not intended to be used in a testing framework as-is | ||
| # because it requires root access to set up network namespaces. | ||
| # | ||
| # To use this script, compile the required device example, and | ||
| # run inside the namespace using | ||
| # sudo <path>/linux_ip_namespace_setup.sh -r <path_to_app> | ||
| # | ||
| # The controller can then be started in a new terminal and will | ||
| # be able to communicate with the application as if it were on | ||
| # a separate network. | ||
| # | ||
|
|
||
| NAMESPACE="MatterTester" | ||
| HOST_SIDE_IF_NAME="heth0" | ||
| NAMESPACE_SIDE_IF_NAME="neth0" | ||
| BRIDGE_NAME="nbridge" | ||
| BRIDGE_ADDR="192.168.4.50" | ||
| NAMESPACE_ADDR="192.168.4.45" | ||
| HOST_IPV6_ADDR=fc00::1 | ||
| BRIDGE_IPV6_ADDR=fc00::b | ||
| NAMESPACE_IPV6_ADDR=fc00::a | ||
|
|
||
| function run_setup() { | ||
| # Create namespace. | ||
| ip netns add "$NAMESPACE" | ||
|
|
||
| # Create two virtual interfaces and link them - one on host side, one on namespace side. | ||
| ip link add "$HOST_SIDE_IF_NAME" type veth peer name "$NAMESPACE_SIDE_IF_NAME" | ||
|
|
||
| # Give the host a known IPv6 addr and set the host side up | ||
| ip -6 addr add "$HOST_IPV6_ADDR"/64 dev "$HOST_SIDE_IF_NAME" | ||
| ip link set "$HOST_SIDE_IF_NAME" up | ||
|
|
||
| # Associate namespace IF with the namespace | ||
| ip link set "$NAMESPACE_SIDE_IF_NAME" netns "$NAMESPACE" | ||
|
|
||
| # Give the namespace IF an address (something nothing else is using) and set it up | ||
| echo "Adding address for namespace IF" | ||
| ip netns exec "$NAMESPACE" ip -6 addr add "$NAMESPACE_IPV6_ADDR"/64 dev "$NAMESPACE_SIDE_IF_NAME" | ||
| ip netns exec "$NAMESPACE" ip link set dev "$NAMESPACE_SIDE_IF_NAME" up | ||
|
|
||
| # Add a route to the namespace to go through the bridge | ||
| echo "Setting routes for namespace" | ||
| ip netns exec "$NAMESPACE" ip -6 route add default dev "$NAMESPACE_SIDE_IF_NAME" | ||
|
|
||
| echo "Setup complete." | ||
| } | ||
|
|
||
| function run_add_ipv4() { | ||
| # Give the namespace an IPv4 address | ||
| ip netns exec "$NAMESPACE" ip addr add "$NAMESPACE_ADDR"/24 dev "$NAMESPACE_SIDE_IF_NAME" | ||
|
|
||
| # Add a bridge, give it an address (something nothing else is using) | ||
| echo "Setting up bridge" | ||
| ip link add name "$BRIDGE_NAME" type bridge | ||
| ip -6 addr add "$BRIDGE_IPV6_ADDR"/64 dev "$BRIDGE_NAME" | ||
| ip addr add "$BRIDGE_ADDR"/24 brd + dev "$BRIDGE_NAME" | ||
|
|
||
| # For ipv6 and ipv4 to work together, need the bridge to ignore the ipv6 packets (DROP here means don't bridge) | ||
| ebtables-legacy -t broute -A BROUTING -p ipv6 -j DROP -i "$HOST_SIDE_IF_NAME" | ||
| ip link set "$BRIDGE_NAME" up | ||
|
|
||
| # Connect the host side to the bridge, so now we have bridge <-> host_side_if <-> namespace_if | ||
| echo "Connecting host virtual IF to bridge" | ||
| ip link set "$HOST_SIDE_IF_NAME" master "$BRIDGE_NAME" | ||
|
|
||
| #ip netns exec ${NAMESPACE} ip route add default via ${BRIDGE_ADDR} dev ${NAMESPACE_SIDE_IF_NAME} | ||
| } | ||
|
|
||
| function run_cmd() { | ||
| # Start the app in the namespace | ||
| echo "Running $1 in namespace." | ||
| ip netns exec "$NAMESPACE" "$1" | ||
| } | ||
|
|
||
| function run_cleanup() { | ||
| # Deleting the namespace will remove the namespace and peer'd interfaces to | ||
| have_ebtables_legacy=$1 | ||
| ip netns delete "$NAMESPACE" | ||
| if ifconfig | grep "$BRIDGE_NAME"; then | ||
| if [ "$have_ebtables_legacy" = true ]; then | ||
| # Just try to drop the additional rule - it references our interface | ||
| # so if it's there, we added it. | ||
| ebtables-legacy -t broute -D BROUTING -p ipv6 -j DROP -i "$HOST_SIDE_IF_NAME" >/dev/null | ||
| fi | ||
| ip link delete dev "$BRIDGE_NAME" type bridge | ||
| fi | ||
| } | ||
|
|
||
| function help() { | ||
| echo "Usage: $file_name [ options ... ]" | ||
| echo "" | ||
|
|
||
| echo "This script is used to set up linux namespaces for Matter device testing" | ||
| echo "between a controller and device on the same linux machine." | ||
| echo "" | ||
| echo "To use this script, run the device code in a namespace using the -r command" | ||
| echo "and a controller in a seperate terminal to simulate two devices communicating" | ||
| echo "across a network." | ||
| echo "Example:" | ||
| echo "--------" | ||
| echo "Terminal 1:" | ||
| echo "sudo <path>/$file_name -r <path>/<application_name>" | ||
| echo "" | ||
| echo "Terminal 2:" | ||
| echo "<path>/chip-device-ctrl" | ||
| echo "" | ||
| echo "This script requires sudo for setup and requires access to ebtables-legacy" | ||
| echo "to set up dual ipv4/ipv6 namespaces. Defaults to ipv6 only." | ||
| echo "" | ||
|
|
||
| echo "Options: | ||
| -h, --help Display this information. | ||
| -s, --setup Setup an IP namespace. Will run cleanup if namespace exists. | ||
| -4, --ipv4 Add ipv4 support. | ||
| -r, --run filename Run file in the namespace. Will setup namespace if required. | ||
| -c, --cleanup Delete namespace and routes | ||
| " | ||
| } | ||
|
|
||
| declare setup=false | ||
| declare filename="" | ||
| declare run=false | ||
| declare cleanup=false | ||
| declare ipv4=false | ||
|
|
||
| file_name=${0##*/} | ||
|
|
||
| while (($#)); do | ||
| case $1 in | ||
| --help | -h) | ||
| help | ||
| exit 1 | ||
| ;; | ||
| --setup | -s) | ||
| setup=true | ||
| ;; | ||
| --run | -r) | ||
| run=true | ||
| filename=$2 | ||
| shift | ||
| ;; | ||
| --cleanup | -c) | ||
| cleanup=true | ||
| ;; | ||
| --ipv4 | -4) | ||
| ipv4=true | ||
| ;; | ||
| -*) | ||
| help | ||
| echo "Unknown Option \"$1\"" | ||
| exit 1 | ||
| ;; | ||
| esac | ||
| shift | ||
| done | ||
|
|
||
| if [[ $EUID -ne 0 ]]; then | ||
| echo "You must run this script with superuser privileges." | ||
| exit 1 | ||
| fi | ||
|
|
||
| if ifconfig | grep "$HOST_SIDE_IF_NAME"; then | ||
| issetup=true | ||
| else | ||
| issetup=false | ||
| fi | ||
|
|
||
| if [ "$setup" = false ] && [ "$run" = false ] && [ "$cleanup" = false ]; then | ||
| echo "Must specify one or more of -s, -r, -c." | ||
| exit 1 | ||
| fi | ||
|
|
||
| if command -v ebtables-legacy >/dev/null; then | ||
| have_ebtables_legacy=true | ||
| else | ||
| have_ebtables_legacy=false | ||
| fi | ||
|
|
||
| if [ "$ipv4" = true ] && [ "$have_ebtables_legacy" = false ]; then | ||
| echo "To set up namespaces with ipv4/ipv6 connectivity, ebtables-legacy" | ||
| echo "is required. For example, to install on machines using APT:" | ||
| echo "sudo apt-get install ebtables" | ||
| exit 1 | ||
| fi | ||
|
|
||
| if [ "$run" = true ]; then | ||
| if [ "$issetup" = false ]; then | ||
| setup=true | ||
| fi | ||
| fi | ||
|
|
||
| if [ "$setup" = true ]; then | ||
| if [ "$issetup" = true ]; then | ||
| cleanup=true | ||
| fi | ||
| fi | ||
|
|
||
| if [ "$cleanup" = true ]; then | ||
| run_cleanup "$have_ebtables_legacy" | ||
| fi | ||
|
|
||
| if [ "$setup" = true ]; then | ||
| run_setup | ||
| if [ "$ipv4" = true ]; then | ||
| run_add_ipv4 | ||
| fi | ||
| fi | ||
|
|
||
| if [ "$run" = true ]; then | ||
| run_cmd "$filename" | ||
| fi |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -125,7 +125,4 @@ if (current_os == "zephyr") { | |
| "${chip_root}/src:includes", | ||
| ] | ||
| } | ||
| group("all") { | ||
| deps = [ ":lwip_all" ] | ||
| } | ||
| } | ||
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