Add a test to check the temporary address could be added/removed
correctly when mngtempaddr is set or removed/unmanaged.
Suggested-by: Sam Edwards <cfsworks@xxxxxxxxx>
Signed-off-by: Hangbin Liu <liuhangbin@xxxxxxxxx>
---
tools/testing/selftests/net/rtnetlink.sh | 89 ++++++++++++++++++++++++
1 file changed, 89 insertions(+)
diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index bdf6f10d0558..f25a363d55bd 100755
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -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 "$2"
}
# same but inverted -- used when command must fail for test to pass
@@ -1267,6 +1269,93 @@ kci_test_enslave_bonding()
ip netns del "$testns"
}
+# If the mngtmpaddr or tempaddr missing, return 0 and stop waiting
+check_tempaddr_exists()
+{
+ local start=${1-"1"}
+ addr_list=$(ip -j -n $testns addr show dev ${devdummy})
+ for i in $(seq $start 4); do
+ if ! echo ${addr_list} | \
+ jq -r '.[].addr_info[] | select(.mngtmpaddr == true) | .local' | \
+ grep -q "200${i}"; then
+ check_err $? "No mngtmpaddr 200${i}:db8::1"
+ return 0
+ fi
+
+ if ! echo ${addr_list} | \
+ jq -r '.[].addr_info[] | select(.temporary == true) | .local' | \
+ grep -q "200${i}"; then
+ check_err $? "No tempaddr for 200${i}:db8::1"
+ 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
+ # 2. Create several (3-4) 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 4); do
+ run_cmd ip -n $testns addr add 200${i}:db8::1/64 dev ${devdummy} mngtmpaddr
+ tempaddr=$(ip -j -n $testns addr show dev ${devdummy} | \
+ jq -r '.[].addr_info[] | select(.temporary == true) | .local' | \
+ grep 200${i})
+ #3. Confirm that temporary addresses are created immediately.
+ if [ -z $tempaddr ]; then
+ check_err 1 "no tempaddr created for 200${i}:db8::1"
+ else
+ run_cmd ip -n $testns addr change $tempaddr dev ${devdummy} \
+ preferred_lft 10 valid_lft 35
+ fi
+ done
+
+ #4. Confirm that a preferred temporary address exists for each mngtmpaddr
+ # address at all times, polling once per second for at least 5 minutes.
+ slowwait 300 check_tempaddr_exists
+
+ #5. 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 4); do
+ if (( $i % 2 == 1 )); then
+ run_cmd ip -n $testns addr del 200${i}:db8::1/64 dev ${devdummy}
+ else
+ run_cmd ip -n $testns addr change 200${i}:db8::1/64 dev ${devdummy}
+ fi
+ # the temp addr should be deleted
+ if ip -j -n $testns addr show dev ${devdummy} | \
+ jq -r '.[].addr_info[] | select(.temporary == true) | .local' | \
+ grep -q "200${i}"; then
+ check_err 1 "tempaddr not deleted for 200${i}:db8::1"
+ fi
+ # Check other addresses are still exist
+ check_tempaddr_exists $((i + 1))
+ done
+
+ if [ $ret -ne 0 ]; then
+ end_test "FAIL: mngtmpaddr add/remove incorrect"
+ ip netns del "$testns"
+ return 1
+ fi
+
+ end_test "PASS: mngtmpaddr add/remove correctly"
+ ip netns del "$testns"
+}
+
kci_test_rtnl()
{
local current_test
--
2.46.0
