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selftests/rtnetlink.sh: add mngtempaddr test

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

Signed-off-by: Sam Edwards <cfsworks@gmail.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Hangbin Liu 2024-11-20 09:51:08 +00:00 committed by Paolo Abeni
parent 00b5b7aab9
commit f6e1dcd644
1 changed files with 95 additions and 0 deletions
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95
tools/testing/selftests/net/rtnetlink.sh
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@ -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