tools/testing/selftests/net/protodown.sh

Source file repositories/reference/linux-study-clean/tools/testing/selftests/net/protodown.sh

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/net/protodown.sh
Extension
.sh
Size
4775 bytes
Lines
183
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: tools
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

#!/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()

Annotation

Implementation Notes