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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Test the protodown mechanism. Verify basic protodown toggling, protodown
# reasons, operational state when the lower device carrier changes, and correct
# operational state when the lower device has no carrier.
# shellcheck disable=SC1091,SC2034,SC2154,SC2317
source lib.sh
require_command jq
ALL_TESTS="
protodown_basic_macvlan
protodown_basic_vxlan
protodown_reasons
protodown_lower_toggle
protodown_lower_down
"
operstate_get()
{
local ns=$1; shift
local dev=$1; shift
ip -n "$ns" -j link show dev "$dev" | jq -r '.[].operstate'
}
operstate_check()
{
local ns=$1; shift
local dev=$1; shift
local expected=$1; shift
local current
current=$(operstate_get "$ns" "$dev")
[ "$current" = "$expected" ]
}
setup_prepare()
{
setup_ns NS
defer cleanup_all_ns
ip -n "$NS" link add name dummy0 up type dummy
ip -n "$NS" link add name macvlan0 link dummy0 up type macvlan mode bridge
ip -n "$NS" link add name vxlan0 up type vxlan id 10010 dstport 4789
}
protodown_basic()
{
local dev=$1; shift
ip -n "$NS" link set dev "$dev" protodown on
check_err $? "Failed to set protodown on"
busywait "$BUSYWAIT_TIMEOUT" operstate_check "$NS" "$dev" DOWN
check_err $? "Operational state is not DOWN after setting protodown"
ip -n "$NS" link set dev "$dev" protodown off
check_err $? "Failed to set protodown off"
busywait "$BUSYWAIT_TIMEOUT" operstate_check "$NS" "$dev" UP
check_err $? "Operational state is not UP after clearing protodown"
}
protodown_basic_macvlan()
{
RET=0
protodown_basic macvlan0
log_test "Basic protodown on/off with macvlan"
}
protodown_basic_vxlan()
{
RET=0
protodown_basic vxlan0
log_test "Basic protodown on/off with vxlan"
}
protodown_reasons()
{
RET=0
ip -n "$NS" link set dev macvlan0 protodown on
ip -n "$NS" link set dev macvlan0 protodown_reason 0 on
check_err $? "Failed to set protodown reason bit 0"
# Cannot clear protodown while reasons are active.
ip -n "$NS" link set dev macvlan0 protodown off 2>/dev/null
check_fail $? "Clearing protodown succeeded with active reasons"
ip -n "$NS" link set dev macvlan0 protodown_reason 0 off
check_err $? "Failed to clear protodown reason bit 0"
# Can clear protodown when no reasons are active.
ip -n "$NS" link set dev macvlan0 protodown off
check_err $? "Failed to clear protodown with no active reasons"
busywait "$BUSYWAIT_TIMEOUT" operstate_check "$NS" macvlan0 UP
check_err $? "Operational state is not UP after clearing protodown"
log_test "Protodown reasons"
}
protodown_lower_toggle()
{
RET=0
ip -n "$NS" link set dev macvlan0 protodown on
busywait "$BUSYWAIT_TIMEOUT" operstate_check "$NS" macvlan0 DOWN
check_err $? "Operational state is not DOWN after setting protodown"
# Toggle carrier on the lower device. The macvlan should stay DOWN
# because protodown is on.
ip -n "$NS" link set dev dummy0 carrier off
ip -n "$NS" link set dev dummy0 carrier on
busywait "$BUSYWAIT_TIMEOUT" operstate_check "$NS" dummy0 UP
check_err $? "Lower device is not UP after carrier on"
busywait "$BUSYWAIT_TIMEOUT" operstate_check "$NS" macvlan0 DOWN
check_err $? "Macvlan operational state is not DOWN despite protodown"
# Clear protodown and verify the macvlan comes back up.
ip -n "$NS" link set dev macvlan0 protodown off
busywait "$BUSYWAIT_TIMEOUT" operstate_check "$NS" macvlan0 UP
check_err $? "Operational state is not UP after clearing protodown"
log_test "Protodown with lower device toggled"
}
protodown_lower_down()
{
RET=0
# Bring the lower device carrier down first.
ip -n "$NS" link set dev dummy0 carrier off
busywait "$BUSYWAIT_TIMEOUT" operstate_check "$NS" macvlan0 LOWERLAYERDOWN
check_err $? "Macvlan is not LOWERLAYERDOWN with lower carrier off"
# Toggle protodown on and off while lower has no carrier. The macvlan
# should not transition to UP.
ip -n "$NS" link set dev macvlan0 protodown on
busywait "$BUSYWAIT_TIMEOUT" operstate_check "$NS" macvlan0 LOWERLAYERDOWN
check_err $? "Macvlan is not LOWERLAYERDOWN after setting protodown"
ip -n "$NS" link set dev macvlan0 protodown off
busywait "$BUSYWAIT_TIMEOUT" operstate_check "$NS" macvlan0 LOWERLAYERDOWN
check_err $? "Macvlan is not LOWERLAYERDOWN after clearing protodown"
# Bring the lower device carrier up. The macvlan should transition to
# UP.
ip -n "$NS" link set dev dummy0 carrier on
busywait "$BUSYWAIT_TIMEOUT" operstate_check "$NS" dummy0 UP
check_err $? "Lower device is not UP after carrier on"
busywait "$BUSYWAIT_TIMEOUT" operstate_check "$NS" macvlan0 UP
check_err $? "Macvlan is not UP after lower device is UP"
log_test "Protodown with lower device down"
}
trap defer_scopes_cleanup EXIT
setup_prepare
tests_run
exit "$EXIT_STATUS"
|
