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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# These tests verify the basic failover capability of the team driver via the
# `enabled` team driver option across different team driver modes. This does not
# rely on teamd, and instead just uses teamnl to set the `enabled` option
# directly.
#
# Topology:
#
# +-------------------------+ NS1
# | test_team1 |
# | + |
# | eth0 | eth1 |
# | +---+---+ |
# | | | |
# +-------------------------+
# | |
# +-------------------------+ NS2
# | | | |
# | +-------+ |
# | eth0 | eth1 |
# | + |
# | test_team2 |
# +-------------------------+
export ALL_TESTS="team_test_failover"
test_dir="$(dirname "$0")"
# shellcheck disable=SC1091
source "${test_dir}/../../../net/lib.sh"
# shellcheck disable=SC1091
source "${test_dir}/team_lib.sh"
NS1=""
NS2=""
export NODAD="nodad"
PREFIX_LENGTH="64"
NS1_IP="fd00::1"
NS2_IP="fd00::2"
NS1_IP4="192.168.0.1"
NS2_IP4="192.168.0.2"
MEMBERS=("eth0" "eth1")
while getopts "4" opt; do
case $opt in
4)
echo "IPv4 mode selected."
export NODAD=
PREFIX_LENGTH="24"
NS1_IP="${NS1_IP4}"
NS2_IP="${NS2_IP4}"
;;
\?)
echo "Invalid option: -$OPTARG" >&2
exit 1
;;
esac
done
# Create the network namespaces, veth pair, and team devices in the specified
# mode.
# Globals:
# RET - Used by test infra, set by `check_err` functions.
# Arguments:
# mode - The team driver mode to use for the team devices.
environment_create()
{
trap cleanup_all_ns EXIT
setup_ns ns1 ns2
NS1="${NS_LIST[0]}"
NS2="${NS_LIST[1]}"
# Create the interfaces.
ip -n "${NS1}" link add eth0 type veth peer name eth0 netns "${NS2}"
ip -n "${NS1}" link add eth1 type veth peer name eth1 netns "${NS2}"
ip -n "${NS1}" link add test_team1 type team
ip -n "${NS2}" link add test_team2 type team
# Set up the receiving network namespace's team interface.
setup_team "${NS2}" test_team2 roundrobin "${NS2_IP}" \
"${PREFIX_LENGTH}" "${MEMBERS[@]}"
}
# Check that failover works for a specific team driver mode.
# Globals:
# RET - Used by test infra, set by `check_err` functions.
# Arguments:
# mode - The mode to set the team interfaces to.
team_test_mode_failover()
{
local mode="$1"
export RET=0
# Set up the sender team with the correct mode.
setup_team "${NS1}" test_team1 "${mode}" "${NS1_IP}" \
"${PREFIX_LENGTH}" "${MEMBERS[@]}"
check_err $? "Failed to set up sender team"
start_listening_and_sending
### Scenario 1: All interfaces initially enabled.
save_tcpdump_outputs "${NS2}" "${MEMBERS[@]}"
did_interface_receive eth0 "${NS2_IP}"
check_err $? "eth0 not transmitting when both links enabled"
did_interface_receive eth1 "${NS2_IP}"
check_err $? "eth1 not transmitting when both links enabled"
clear_tcpdump_outputs "${MEMBERS[@]}"
### Scenario 2: One tx-side interface disabled.
ip netns exec "${NS1}" teamnl test_team1 setoption enabled false \
--port=eth1
slowwait 2 bash -c "ip netns exec ${NS1} teamnl test_team1 getoption \
enabled --port=eth1 | grep -q false"
save_tcpdump_outputs "${NS2}" "${MEMBERS[@]}"
did_interface_receive eth0 "${NS2_IP}"
check_err $? "eth0 not transmitting when enabled"
did_interface_receive eth1 "${NS2_IP}"
check_fail $? "eth1 IS transmitting when disabled"
clear_tcpdump_outputs "${MEMBERS[@]}"
### Scenario 3: The interface is re-enabled.
ip netns exec "${NS1}" teamnl test_team1 setoption enabled true \
--port=eth1
slowwait 2 bash -c "ip netns exec ${NS1} teamnl test_team1 getoption \
enabled --port=eth1 | grep -q true"
save_tcpdump_outputs "${NS2}" "${MEMBERS[@]}"
did_interface_receive eth0 "${NS2_IP}"
check_err $? "eth0 not transmitting when both links enabled"
did_interface_receive eth1 "${NS2_IP}"
check_err $? "eth1 not transmitting when both links enabled"
clear_tcpdump_outputs "${MEMBERS[@]}"
log_test "Failover of '${mode}' test"
# Clean up
stop_sending_and_listening
}
team_test_failover()
{
team_test_mode_failover broadcast
team_test_mode_failover roundrobin
team_test_mode_failover random
# Don't test `activebackup` or `loadbalance` modes, since they are too
# complicated for just setting `enabled` to work. They use more than
# the `enabled` option for transmit.
}
require_command teamnl
require_command iperf3
require_command tcpdump
environment_create
tests_run
exit "${EXIT_STATUS}"
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