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@xxxxxxxxx>
Signed-off-by: Hangbin Liu <liuhangbin@xxxxxxxxx>
---
tools/testing/selftests/net/rtnetlink.sh | 95 ++++++++++++++++++++++++
1 file changed, 95 insertions(+)
diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index bdf6f10d0558..b63053202524 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 "$2"
}
# same but inverted -- used when command must fail for test to pass
@@ -1267,6 +1269,99 @@ kci_test_enslave_bonding()
ip netns del "$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
--
2.46.0
