selftests: bonding: add test for lacp_strict mode
Add a test for the bonding lacp_strict mode. Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com> Acked-by: Jay Vosburgh <jv@jvosburgh.net> Link: https://patch.msgid.link/20260603150331.1919611-7-louis.scalbert@6wind.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Louis Scalbert authored and 
Jakub Kicinski committed
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@@ -8,6 +8,7 @@ TEST_PROGS := \
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bond-lladdr-target.sh \
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bond-lladdr-target.sh \
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bond_ipsec_offload.sh \
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bond_ipsec_offload.sh \
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bond_lacp_prio.sh \
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bond_lacp_prio.sh \
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bond_lacp_strict.sh \
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bond_macvlan_ipvlan.sh \
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bond_macvlan_ipvlan.sh \
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bond_options.sh \
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bond_options.sh \
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bond_passive_lacp.sh \
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bond_passive_lacp.sh \
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@@ -0,0 +1,347 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Testing if bond lacp_strict works
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#
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# Partner (p_ns)
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# +--------------------------+
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# | bond0 |
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# | + |
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# | eth0 | eth1 |
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# | +---+---+ |
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# | | | |
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# +--------------------------+
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# | | eth0 | eth1 |
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# | | | |
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# |(br_ns) | br0 | br1 |
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# | | | |
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# | | eth2 | eth3 |
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# +--------------------------+
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# | | | |
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# | +---+---+ |
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# | eth0 | eth1 |
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# | + |
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# | bond0 |
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# +--------------------------+
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# Dut (d_ns)
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lib_dir=$(dirname "$0")
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# shellcheck disable=SC1090
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source "$lib_dir"/../../../net/lib.sh
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COLLECTING_DISTRIBUTING_MASK=48
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COLLECTING_DISTRIBUTING=48
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FAILED=0
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setup_links()
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{
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# shellcheck disable=SC2154
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ip -n "${p_ns}" link add eth0 type veth peer name eth0 netns "${br_ns}"
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ip -n "${p_ns}" link add eth1 type veth peer name eth1 netns "${br_ns}"
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ip -n "${d_ns}" link add eth0 type veth peer name eth2 netns "${br_ns}"
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ip -n "${d_ns}" link add eth1 type veth peer name eth3 netns "${br_ns}"
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ip -n "${br_ns}" link add br0 type bridge
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ip -n "${br_ns}" link add br1 type bridge
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ip -n "${br_ns}" link set dev br0 type bridge stp_state 0
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ip -n "${br_ns}" link set dev br1 type bridge stp_state 0
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ip -n "${br_ns}" link set eth0 master br0
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ip -n "${br_ns}" link set eth2 master br0
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ip -n "${br_ns}" link set eth1 master br1
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ip -n "${br_ns}" link set eth3 master br1
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# Allow LACP trames forwarding on bridge ports
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ip netns exec "${br_ns}" sh -c "echo 4 > /sys/class/net/br0/brif/eth0/group_fwd_mask"
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ip netns exec "${br_ns}" sh -c "echo 4 > /sys/class/net/br1/brif/eth1/group_fwd_mask"
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ip netns exec "${br_ns}" sh -c "echo 4 > /sys/class/net/br0/brif/eth2/group_fwd_mask"
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ip netns exec "${br_ns}" sh -c "echo 4 > /sys/class/net/br1/brif/eth3/group_fwd_mask"
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ip -n "${br_ns}" link set eth0 up
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ip -n "${br_ns}" link set eth2 up
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ip -n "${br_ns}" link set eth1 up
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ip -n "${br_ns}" link set eth3 up
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ip -n "${br_ns}" link set br0 up
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ip -n "${br_ns}" link set br1 up
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ip -n "${d_ns}" link add bond0 type bond mode 802.3ad miimon 100 \
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lacp_rate fast min_links 1
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ip -n "${p_ns}" link add bond0 type bond mode 802.3ad miimon 100 \
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lacp_rate fast min_links 1
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ip -n "${d_ns}" link set eth0 master bond0
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ip -n "${d_ns}" link set eth1 master bond0
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ip -n "${p_ns}" link set eth0 master bond0
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ip -n "${p_ns}" link set eth1 master bond0
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ip -n "${d_ns}" link set bond0 up
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ip -n "${p_ns}" link set bond0 up
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}
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test_master_carrier() {
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local expected=$1
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local mode_name=$2
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local carrier
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carrier=$(ip netns exec "${d_ns}" cat /sys/class/net/bond0/carrier)
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[ "$carrier" == "1" ] && carrier="up" || carrier="down"
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[ "$carrier" == "$expected" ] && return
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echo "FAIL: Expected carrier $expected in lacp_strict $mode_name mode, got $carrier"
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RET=1
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}
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compare_state() {
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local actual_state=$1
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local expected_state=$2
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local iface=$3
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local last_attempt=$4
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[ $((actual_state & COLLECTING_DISTRIBUTING_MASK)) -eq "$expected_state" ] \
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&& return 0
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[ "$last_attempt" -ne 1 ] && return 1
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printf "FAIL: Expected LACP %s actor state to " "$iface"
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if [ "$expected_state" -eq $COLLECTING_DISTRIBUTING ]; then
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echo "be in Collecting/Distributing state"
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else
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echo "have neither Collecting nor Distributing set."
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fi
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return 1
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}
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_test_lacp_port_state() {
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local interface=$1
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local expected=$2
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local last_attempt=$3
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local eth0_actor_state eth1_actor_state
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local ret=0
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# shellcheck disable=SC2016
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while IFS='=' read -r k v; do
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printf -v "$k" '%s' "$v"
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done < <(
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ip netns exec "${d_ns}" awk '
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/^Slave Interface: / { iface=$3 }
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/details actor lacp pdu:/ { ctx="actor" }
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/details partner lacp pdu:/ { ctx="partner" }
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/^[[:space:]]+port state: / {
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if (ctx == "actor") {
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gsub(":", "", iface)
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printf "%s_%s_state=%s\n", iface, ctx, $3
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}
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}
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' /proc/net/bonding/bond0
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)
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if [ "$interface" == "eth0" ] || [ "$interface" == "both" ]; then
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compare_state "$eth0_actor_state" "$expected" eth0 "$last_attempt" || ret=1
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fi
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if [ "$interface" == "eth1" ] || [ "$interface" == "both" ]; then
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compare_state "$eth1_actor_state" "$expected" eth1 "$last_attempt" || ret=1
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fi
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return $ret
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}
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test_lacp_port_state() {
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local interface=$1
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local expected=$2
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local retry=$3
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local last_attempt=0
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local attempt=1
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local ret=1
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while [ $attempt -le $((retry + 1)) ]; do
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[ $attempt -eq $((retry + 1)) ] && last_attempt=1
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_test_lacp_port_state "$interface" "$expected" "$last_attempt" && return
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((attempt++))
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sleep 1
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done
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RET=1
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}
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trap cleanup_all_ns EXIT
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setup_ns d_ns p_ns br_ns
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setup_links
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# Initial state
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RET=0
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mode=off
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test_lacp_port_state both $COLLECTING_DISTRIBUTING 3
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 and eth1 up"
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# partner eth0 down, eth1 up
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# (replicate eth0 state to dut eth0 by shutting a bridge port)
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RET=0
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ip -n "${p_ns}" link set eth0 down
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ip -n "${br_ns}" link set eth2 down
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test_lacp_port_state eth0 $FAILED 5
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test_lacp_port_state eth1 $COLLECTING_DISTRIBUTING 1
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 down"
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# partner eth0 and eth1 down
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RET=0
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ip -n "${p_ns}" link set eth1 down
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ip -n "${br_ns}" link set eth3 down
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test_lacp_port_state both $FAILED 5
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test_master_carrier down $mode # down because of min_links
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log_test "bond LACP" "lacp_strict $mode - eth0 and eth1 down"
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# partner eth0 up, eth1 down
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RET=0
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ip -n "${p_ns}" link set eth0 up
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ip -n "${br_ns}" link set eth2 up
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test_lacp_port_state eth0 $COLLECTING_DISTRIBUTING 60
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test_lacp_port_state eth1 $FAILED 1
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 up, eth1 down"
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# partner eth0 and eth1 up
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RET=0
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ip -n "${p_ns}" link set eth1 up
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ip -n "${br_ns}" link set eth3 up
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test_lacp_port_state both $COLLECTING_DISTRIBUTING 60
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 and eth1 up"
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# partner eth0 stops LACP and eth1 up
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RET=0
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ip netns exec "${br_ns}" sh -c "echo 0 > /sys/class/net/br0/brif/eth0/group_fwd_mask"
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ip netns exec "${br_ns}" sh -c "echo 0 > /sys/class/net/br0/brif/eth2/group_fwd_mask"
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test_lacp_port_state eth0 $FAILED 5
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test_lacp_port_state eth1 $COLLECTING_DISTRIBUTING 1
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 stopped sending LACP"
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# partner eth0 and eth1 stop LACP
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RET=0
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ip netns exec "${br_ns}" sh -c "echo 0 > /sys/class/net/br1/brif/eth1/group_fwd_mask"
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ip netns exec "${br_ns}" sh -c "echo 0 > /sys/class/net/br1/brif/eth3/group_fwd_mask"
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test_lacp_port_state both $FAILED 5
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 and eth1 stopped sending LACP"
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# switch to lacp_strict on
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RET=0
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mode=on
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ip -n "${d_ns}" link set dev bond0 type bond lacp_strict $mode
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test_lacp_port_state both $FAILED 1
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test_master_carrier down $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 and eth1 stopped sending LACP"
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# switch back to lacp_strict off mode
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RET=0
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mode=off
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ip -n "${d_ns}" link set dev bond0 type bond lacp_strict $mode
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test_lacp_port_state both $FAILED 1
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 and eth1 stopped sending LACP"
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# eth0 recovers LACP
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RET=0
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ip netns exec "${br_ns}" sh -c "echo 4 > /sys/class/net/br0/brif/eth0/group_fwd_mask"
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ip netns exec "${br_ns}" sh -c "echo 4 > /sys/class/net/br0/brif/eth2/group_fwd_mask"
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test_lacp_port_state eth0 $COLLECTING_DISTRIBUTING 60
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test_lacp_port_state eth1 $FAILED 1
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 recovered and eth1 stopped sending LACP"
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# eth1 recovers LACP
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RET=0
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ip netns exec "${br_ns}" sh -c "echo 4 > /sys/class/net/br1/brif/eth1/group_fwd_mask"
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ip netns exec "${br_ns}" sh -c "echo 4 > /sys/class/net/br1/brif/eth3/group_fwd_mask"
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test_lacp_port_state both $COLLECTING_DISTRIBUTING 60
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 and eth1 recovered LACP"
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# switch to lacp_strict on
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RET=0
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mode=on
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ip -n "${d_ns}" link set dev bond0 type bond lacp_strict $mode
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test_lacp_port_state both $COLLECTING_DISTRIBUTING 1
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 and eth1 up"
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# partner eth0 down, eth1 up
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RET=0
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ip -n "${p_ns}" link set eth0 down
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ip -n "${br_ns}" link set eth2 down
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test_lacp_port_state eth0 $FAILED 5
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test_lacp_port_state eth1 $COLLECTING_DISTRIBUTING 1
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 down"
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# partner eth0 and eth1 down
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RET=0
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ip -n "${p_ns}" link set eth1 down
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ip -n "${br_ns}" link set eth3 down
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test_lacp_port_state both $FAILED 5
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test_master_carrier down $mode # down because of min_links
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log_test "bond LACP" "lacp_strict $mode - eth0 and eth1 down"
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# partner eth0 up, eth1 down
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RET=0
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ip -n "${p_ns}" link set eth0 up
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ip -n "${br_ns}" link set eth2 up
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test_lacp_port_state eth0 $COLLECTING_DISTRIBUTING 60
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test_lacp_port_state eth1 $FAILED 1
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 up, eth1 down"
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# partner eth0 and eth1 up
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RET=0
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ip -n "${p_ns}" link set eth1 up
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ip -n "${br_ns}" link set eth3 up
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test_lacp_port_state both $COLLECTING_DISTRIBUTING 60
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 and eth1 up"
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# partner eth0 stops LACP and eth1 up
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RET=0
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ip netns exec "${br_ns}" sh -c "echo 0 > /sys/class/net/br0/brif/eth0/group_fwd_mask"
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ip netns exec "${br_ns}" sh -c "echo 0 > /sys/class/net/br0/brif/eth2/group_fwd_mask"
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test_lacp_port_state eth0 $FAILED 5
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test_lacp_port_state eth1 $COLLECTING_DISTRIBUTING 1
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test_master_carrier up $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 stopped sending LACP"
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# partner eth0 and eth1 stop LACP
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RET=0
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ip netns exec "${br_ns}" sh -c "echo 0 > /sys/class/net/br1/brif/eth1/group_fwd_mask"
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ip netns exec "${br_ns}" sh -c "echo 0 > /sys/class/net/br1/brif/eth3/group_fwd_mask"
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test_lacp_port_state both $FAILED 5
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test_master_carrier down $mode
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log_test "bond LACP" "lacp_strict $mode - eth0 and eth1 stopped sending LACP"
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# eth0 recovers LACP
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RET=0
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||||||
|
ip netns exec "${br_ns}" sh -c "echo 4 > /sys/class/net/br0/brif/eth0/group_fwd_mask"
|
||||||
|
ip netns exec "${br_ns}" sh -c "echo 4 > /sys/class/net/br0/brif/eth2/group_fwd_mask"
|
||||||
|
test_lacp_port_state eth0 $COLLECTING_DISTRIBUTING 60
|
||||||
|
test_lacp_port_state eth1 $FAILED 1
|
||||||
|
test_master_carrier up $mode
|
||||||
|
log_test "bond LACP" "lacp_strict $mode - eth0 recovered and eth1 stopped sending LACP"
|
||||||
|
|
||||||
|
# eth1 recovers LACP
|
||||||
|
# shellcheck disable=SC2034
|
||||||
|
RET=0
|
||||||
|
ip netns exec "${br_ns}" sh -c "echo 4 > /sys/class/net/br1/brif/eth1/group_fwd_mask"
|
||||||
|
ip netns exec "${br_ns}" sh -c "echo 4 > /sys/class/net/br1/brif/eth3/group_fwd_mask"
|
||||||
|
test_lacp_port_state both $COLLECTING_DISTRIBUTING 60
|
||||||
|
test_master_carrier up $mode
|
||||||
|
log_test "bond LACP" "lacp_strict $mode - eth0 and eth1 recovered LACP"
|
||||||
|
|
||||||
|
exit "${EXIT_STATUS}"
|
||||||
Reference in new issue
Block a user