Commit f6e1dcd6 authored by Hangbin Liu's avatar Hangbin Liu Committed by Paolo Abeni
Browse files

selftests/rtnetlink.sh: add mngtempaddr test 



Add a test to check the temporary address could be added/removed
correctly when mngtempaddr is set or removed/unmanaged.

Signed-off-by: default avatarSam Edwards <cfsworks@gmail.com>
Signed-off-by: default avatarHangbin Liu <liuhangbin@gmail.com>
Reviewed-by: default avatarDavid Ahern <dsahern@kernel.org>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 00b5b7aa

tools/testing/selftests/net/rtnetlink.sh

+95 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ ALL_TESTS=" 
	kci_test_bridge_parent_id

	kci_test_address_proto

	kci_test_enslave_bonding

	kci_test_mngtmpaddr

"



devdummy="test-dummy0"
@@ -44,6 +45,7 @@ check_err() 
	if [ $ret -eq 0 ]; then

		ret=$1

	fi

	[ -n "$2" ] && echo "$2"

}



# same but inverted -- used when command must fail for test to pass
@@ -1239,6 +1241,99 @@ kci_test_enslave_bonding() 
	ip netns del "$testns"

}



# Called to validate the addresses on $IFNAME:

#

# 1. Every `temporary` address must have a matching `mngtmpaddr`

# 2. Every `mngtmpaddr` address must have some un`deprecated` `temporary`

#

# If the mngtmpaddr or tempaddr checking failed, return 0 and stop slowwait

validate_mngtmpaddr()

{

	local dev=$1

	local prefix=""

	local addr_list=$(ip -j -n $testns addr show dev ${dev})

	local temp_addrs=$(echo ${addr_list} | \

		jq -r '.[].addr_info[] | select(.temporary == true) | .local')

	local mng_prefixes=$(echo ${addr_list} | \

		jq -r '.[].addr_info[] | select(.mngtmpaddr == true) | .local' | \

		cut -d: -f1-4 | tr '\n' ' ')

	local undep_prefixes=$(echo ${addr_list} | \

		jq -r '.[].addr_info[] | select(.temporary == true and .deprecated != true) | .local' | \

		cut -d: -f1-4 | tr '\n' ' ')



	# 1. All temporary addresses (temp and dep) must have a matching mngtmpaddr

	for address in ${temp_addrs}; do

		prefix=$(echo ${address} | cut -d: -f1-4)

		if [[ ! " ${mng_prefixes} " =~ " $prefix " ]]; then

			check_err 1 "FAIL: Temporary $address with no matching mngtmpaddr!";

			return 0

		fi

	done



	# 2. All mngtmpaddr addresses must have a temporary address (not dep)

	for prefix in ${mng_prefixes}; do

		if [[ ! " ${undep_prefixes} " =~ " $prefix " ]]; then

			check_err 1 "FAIL: No undeprecated temporary in $prefix!";

			return 0

		fi

	done



	return 1

}



kci_test_mngtmpaddr()

{

	local ret=0



	setup_ns testns

	if [ $? -ne 0 ]; then

		end_test "SKIP mngtmpaddr tests: cannot add net namespace $testns"

		return $ksft_skip

	fi



	# 1. Create a dummy Ethernet interface

	run_cmd ip -n $testns link add ${devdummy} type dummy

	run_cmd ip -n $testns link set ${devdummy} up

	run_cmd ip netns exec $testns sysctl -w net.ipv6.conf.${devdummy}.use_tempaddr=1

	run_cmd ip netns exec $testns sysctl -w net.ipv6.conf.${devdummy}.temp_prefered_lft=10

	run_cmd ip netns exec $testns sysctl -w net.ipv6.conf.${devdummy}.temp_valid_lft=25

	run_cmd ip netns exec $testns sysctl -w net.ipv6.conf.${devdummy}.max_desync_factor=1



	# 2. Create several mngtmpaddr addresses on that interface.

	# with temp_*_lft configured to be pretty short (10 and 35 seconds

	# for prefer/valid respectively)

	for i in $(seq 1 9); do

		run_cmd ip -n $testns addr add 2001:db8:7e57:${i}::1/64 mngtmpaddr dev ${devdummy}

	done



	# 3. Confirm that a preferred temporary address exists for each mngtmpaddr

	# address at all times, polling once per second for 30 seconds.

	slowwait 30 validate_mngtmpaddr ${devdummy}



	# 4. Delete each mngtmpaddr address, one at a time (alternating between

	# deleting and merely un-mngtmpaddr-ing), and confirm that the other

	# mngtmpaddr addresses still have preferred temporaries.

	for i in $(seq 1 9); do

		(( $i % 4 == 0 )) && mng_flag="mngtmpaddr" || mng_flag=""

		if (( $i % 2 == 0 )); then

			run_cmd ip -n $testns addr del 2001:db8:7e57:${i}::1/64 $mng_flag dev ${devdummy}

		else

			run_cmd ip -n $testns addr change 2001:db8:7e57:${i}::1/64 dev ${devdummy}

		fi

		# the temp addr should be deleted

		validate_mngtmpaddr ${devdummy}

	done



	if [ $ret -ne 0 ]; then

		end_test "FAIL: mngtmpaddr add/remove incorrect"

	else

		end_test "PASS: mngtmpaddr add/remove correctly"

	fi



	ip netns del "$testns"

	return $ret

}



kci_test_rtnl()

{

	local current_test