On 31/05/2023 22:22, Zhengchao Shao wrote:
The test case shown in [1] triggers the kernel to access the null pointer.
Therefore, add related test cases to mq.
The test results are as follows:
./tdc.py -e 0531
1..1
ok 1 0531 - Replace mq with invalid parent ID
./tdc.py -c mq
1..8
ok 1 ce7d - Add mq Qdisc to multi-queue device (4 queues)
ok 2 2f82 - Add mq Qdisc to multi-queue device (256 queues)
ok 3 c525 - Add duplicate mq Qdisc
ok 4 128a - Delete nonexistent mq Qdisc
ok 5 03a9 - Delete mq Qdisc twice
ok 6 be0f - Add mq Qdisc to single-queue device
ok 7 1023 - Show mq class
ok 8 0531 - Replace mq with invalid parent ID
[1] https://lore.kernel.org/all/20230527093747.3583502-1-shaozhengchao@xxxxxxxxxx/
Signed-off-by: Zhengchao Shao <shaozhengchao@xxxxxxxxxx>
LGTM,
Reviewed-by: Pedro Tammela <pctammela@xxxxxxxxxxxx>
---
.../tc-testing/tc-tests/qdiscs/mq.json | 25 ++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json
index 44fbfc6caec7..e3d2de5c184f 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/mq.json
@@ -155,5 +155,28 @@
"teardown": [
"echo \"1\" > /sys/bus/netdevsim/del_device"
]
- }
+ },
+ {
+ "id": "0531",
+ "name": "Replace mq with invalid parent ID",
+ "category": [
+ "qdisc",
+ "mq"
+ ],
+ "plugins": {
+ "requires": "nsPlugin"
+ },
+ "setup": [
+ "echo \"1 1 16\" > /sys/bus/netdevsim/new_device",
+ "$TC qdisc add dev $ETH root handle ffff: mq"
+ ],
+ "cmdUnderTest": "$TC qdisc replace dev $ETH parent ffff:fff1 handle ffff: mq",
+ "expExitCode": "2",
+ "verifyCmd": "$TC qdisc show dev $ETH",
+ "matchPattern": "qdisc [a-zA-Z0-9_]+ 0: parent ffff",
+ "matchCount": "16",
+ "teardown": [
+ "echo \"1\" > /sys/bus/netdevsim/del_device"
+ ]
+ }
]
