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https://github.com/nxp-imx/linux-imx.git
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cc563e7498
The amt.sh requires smcrouted for multicasting routing.
So, it starts smcrouted before forwarding tests.
It must be stopped after all tests, but it isn't.
To fix this issue, it kills smcrouted in the cleanup logic.
Fixes: c08e8baea7 ("selftests: add amt interface selftest script")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
291 lines
9.2 KiB
Bash
Executable File
291 lines
9.2 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# Author: Taehee Yoo <ap420073@gmail.com>
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#
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# This script evaluates the AMT driver.
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# There are four network-namespaces, LISTENER, SOURCE, GATEWAY, RELAY.
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# The role of LISTENER is to listen multicast traffic.
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# In order to do that, it send IGMP group join message.
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# The role of SOURCE is to send multicast traffic to listener.
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# The role of GATEWAY is to work Gateway role of AMT interface.
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# The role of RELAY is to work Relay role of AMT interface.
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#
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#
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# +------------------------+
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# | LISTENER netns |
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# | |
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# | +------------------+ |
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# | | l_gw | |
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# | | 192.168.0.2/24 | |
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# | | 2001:db8::2/64 | |
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# | +------------------+ |
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# | . |
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# +------------------------+
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# .
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# .
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# +-----------------------------------------------------+
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# | . GATEWAY netns |
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# | . |
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# |+---------------------------------------------------+|
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# || . br0 ||
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# || +------------------+ +------------------+ ||
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# || | gw_l | | amtg | ||
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# || | 192.168.0.1/24 | +--------+---------+ ||
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# || | 2001:db8::1/64 | | ||
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# || +------------------+ | ||
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# |+-------------------------------------|-------------+|
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# | | |
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# | +--------+---------+ |
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# | | gw_relay | |
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# | | 10.0.0.1/24 | |
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# | +------------------+ |
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# | . |
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# +-----------------------------------------------------+
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# .
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# .
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# +-----------------------------------------------------+
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# | RELAY netns . |
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# | +------------------+ |
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# | | relay_gw | |
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# | | 10.0.0.2/24 | |
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# | +--------+---------+ |
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# | | |
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# | | |
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# | +------------------+ +--------+---------+ |
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# | | relay_src | | amtr | |
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# | | 172.17.0.1/24 | +------------------+ |
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# | | 2001:db8:3::1/64 | |
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# | +------------------+ |
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# | . |
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# | . |
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# +-----------------------------------------------------+
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# .
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# .
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# +------------------------+
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# | . |
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# | +------------------+ |
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# | | src_relay | |
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# | | 172.17.0.2/24 | |
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# | | 2001:db8:3::2/64 | |
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# | +------------------+ |
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# | SOURCE netns |
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# +------------------------+
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#==============================================================================
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readonly LISTENER=$(mktemp -u listener-XXXXXXXX)
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readonly GATEWAY=$(mktemp -u gateway-XXXXXXXX)
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readonly RELAY=$(mktemp -u relay-XXXXXXXX)
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readonly SOURCE=$(mktemp -u source-XXXXXXXX)
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readonly SMCROUTEDIR="$(mktemp -d)"
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ERR=4
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err=0
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exit_cleanup()
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{
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for ns in "$@"; do
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ip netns delete "${ns}" 2>/dev/null || true
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done
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if [ -f "$SMCROUTEDIR/amt.pid" ]; then
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smcpid=$(< $SMCROUTEDIR/amt.pid)
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kill $smcpid
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fi
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rm -rf $SMCROUTEDIR
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exit $ERR
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}
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create_namespaces()
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{
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ip netns add "${LISTENER}" || exit_cleanup
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ip netns add "${GATEWAY}" || exit_cleanup "${LISTENER}"
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ip netns add "${RELAY}" || exit_cleanup "${LISTENER}" "${GATEWAY}"
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ip netns add "${SOURCE}" || exit_cleanup "${LISTENER}" "${GATEWAY}" \
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"${RELAY}"
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}
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# The trap function handler
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#
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exit_cleanup_all()
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{
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exit_cleanup "${LISTENER}" "${GATEWAY}" "${RELAY}" "${SOURCE}"
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}
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setup_interface()
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{
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for ns in "${LISTENER}" "${GATEWAY}" "${RELAY}" "${SOURCE}"; do
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ip -netns "${ns}" link set dev lo up
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done;
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ip link add l_gw type veth peer name gw_l
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ip link add gw_relay type veth peer name relay_gw
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ip link add relay_src type veth peer name src_relay
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ip link set l_gw netns "${LISTENER}" up
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ip link set gw_l netns "${GATEWAY}" up
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ip link set gw_relay netns "${GATEWAY}" up
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ip link set relay_gw netns "${RELAY}" up
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ip link set relay_src netns "${RELAY}" up
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ip link set src_relay netns "${SOURCE}" up mtu 1400
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ip netns exec "${LISTENER}" ip a a 192.168.0.2/24 dev l_gw
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ip netns exec "${LISTENER}" ip r a default via 192.168.0.1 dev l_gw
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ip netns exec "${LISTENER}" ip a a 2001:db8::2/64 dev l_gw
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ip netns exec "${LISTENER}" ip r a default via 2001:db8::1 dev l_gw
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ip netns exec "${LISTENER}" ip a a 239.0.0.1/32 dev l_gw autojoin
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ip netns exec "${LISTENER}" ip a a ff0e::5:6/128 dev l_gw autojoin
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ip netns exec "${GATEWAY}" ip a a 192.168.0.1/24 dev gw_l
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ip netns exec "${GATEWAY}" ip a a 2001:db8::1/64 dev gw_l
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ip netns exec "${GATEWAY}" ip a a 10.0.0.1/24 dev gw_relay
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ip netns exec "${GATEWAY}" ip link add br0 type bridge
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ip netns exec "${GATEWAY}" ip link set br0 up
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ip netns exec "${GATEWAY}" ip link set gw_l master br0
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ip netns exec "${GATEWAY}" ip link set gw_l up
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ip netns exec "${GATEWAY}" ip link add amtg master br0 type amt \
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mode gateway local 10.0.0.1 discovery 10.0.0.2 dev gw_relay \
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gateway_port 2268 relay_port 2268
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ip netns exec "${RELAY}" ip a a 10.0.0.2/24 dev relay_gw
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ip netns exec "${RELAY}" ip link add amtr type amt mode relay \
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local 10.0.0.2 dev relay_gw relay_port 2268 max_tunnels 4
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ip netns exec "${RELAY}" ip a a 172.17.0.1/24 dev relay_src
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ip netns exec "${RELAY}" ip a a 2001:db8:3::1/64 dev relay_src
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ip netns exec "${SOURCE}" ip a a 172.17.0.2/24 dev src_relay
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ip netns exec "${SOURCE}" ip a a 2001:db8:3::2/64 dev src_relay
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ip netns exec "${SOURCE}" ip r a default via 172.17.0.1 dev src_relay
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ip netns exec "${SOURCE}" ip r a default via 2001:db8:3::1 dev src_relay
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ip netns exec "${RELAY}" ip link set amtr up
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ip netns exec "${GATEWAY}" ip link set amtg up
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}
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setup_sysctl()
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{
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ip netns exec "${RELAY}" sysctl net.ipv4.ip_forward=1 -w -q
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}
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setup_iptables()
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{
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ip netns exec "${RELAY}" iptables -t mangle -I PREROUTING \
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-d 239.0.0.1 -j TTL --ttl-set 2
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ip netns exec "${RELAY}" ip6tables -t mangle -I PREROUTING \
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-j HL --hl-set 2
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}
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setup_mcast_routing()
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{
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ip netns exec "${RELAY}" smcrouted -P $SMCROUTEDIR/amt.pid
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ip netns exec "${RELAY}" smcroutectl a relay_src \
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172.17.0.2 239.0.0.1 amtr
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ip netns exec "${RELAY}" smcroutectl a relay_src \
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2001:db8:3::2 ff0e::5:6 amtr
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}
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test_remote_ip()
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{
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REMOTE=$(ip netns exec "${GATEWAY}" \
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ip -d -j link show amtg | jq .[0].linkinfo.info_data.remote)
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if [ $REMOTE == "\"10.0.0.2\"" ]; then
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printf "TEST: %-60s [ OK ]\n" "amt discovery"
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else
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printf "TEST: %-60s [FAIL]\n" "amt discovery"
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ERR=1
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fi
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}
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send_mcast_torture4()
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{
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ip netns exec "${SOURCE}" bash -c \
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'cat /dev/urandom | head -c 1G | nc -w 1 -u 239.0.0.1 4001'
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}
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send_mcast_torture6()
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{
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ip netns exec "${SOURCE}" bash -c \
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'cat /dev/urandom | head -c 1G | nc -w 1 -u ff0e::5:6 6001'
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}
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check_features()
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{
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ip link help 2>&1 | grep -q amt
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if [ $? -ne 0 ]; then
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echo "Missing amt support in iproute2" >&2
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exit_cleanup
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fi
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}
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test_ipv4_forward()
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{
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RESULT4=$(ip netns exec "${LISTENER}" timeout 15 socat - UDP4-LISTEN:4000,readbytes=128 || true)
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if echo "$RESULT4" | grep -q "172.17.0.2"; then
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printf "TEST: %-60s [ OK ]\n" "IPv4 amt multicast forwarding"
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exit 0
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else
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printf "TEST: %-60s [FAIL]\n" "IPv4 amt multicast forwarding"
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exit 1
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fi
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}
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test_ipv6_forward()
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{
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RESULT6=$(ip netns exec "${LISTENER}" timeout 15 socat - UDP6-LISTEN:6000,readbytes=128 || true)
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if echo "$RESULT6" | grep -q "2001:db8:3::2"; then
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printf "TEST: %-60s [ OK ]\n" "IPv6 amt multicast forwarding"
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exit 0
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else
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printf "TEST: %-60s [FAIL]\n" "IPv6 amt multicast forwarding"
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exit 1
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fi
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}
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send_mcast4()
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{
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sleep 2
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ip netns exec "${SOURCE}" bash -c \
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'printf "%s %128s" 172.17.0.2 | nc -w 1 -u 239.0.0.1 4000' &
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}
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send_mcast6()
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{
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sleep 2
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ip netns exec "${SOURCE}" bash -c \
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'printf "%s %128s" 2001:db8:3::2 | nc -w 1 -u ff0e::5:6 6000' &
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}
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check_features
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create_namespaces
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set -e
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trap exit_cleanup_all EXIT
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setup_interface
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setup_sysctl
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setup_iptables
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setup_mcast_routing
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test_remote_ip
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test_ipv4_forward &
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pid=$!
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send_mcast4
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wait $pid || err=$?
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if [ $err -eq 1 ]; then
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ERR=1
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fi
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test_ipv6_forward &
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pid=$!
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send_mcast6
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wait $pid || err=$?
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if [ $err -eq 1 ]; then
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ERR=1
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fi
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send_mcast_torture4
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printf "TEST: %-60s [ OK ]\n" "IPv4 amt traffic forwarding torture"
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send_mcast_torture6
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printf "TEST: %-60s [ OK ]\n" "IPv6 amt traffic forwarding torture"
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sleep 5
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if [ "${ERR}" -eq 1 ]; then
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echo "Some tests failed." >&2
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else
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ERR=0
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fi
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