selftests/tc-testing: add selftests for netem qdisc

Test cb28: Create NETEM with default setting
Test a089: Create NETEM with limit flag
Test 3449: Create NETEM with delay time
Test 3782: Create NETEM with distribution and corrupt flag
Test 2b82: Create NETEM with distribution and duplicate flag
Test a932: Create NETEM with distribution and loss flag
Test e01a: Create NETEM with distribution and loss state flag
Test ba29: Create NETEM with loss gemodel flag
Test 0492: Create NETEM with reorder flag
Test 7862: Create NETEM with rate limit
Test 7235: Create NETEM with multiple slot rate
Test 5439: Create NETEM with multiple slot setting
Test 5029: Change NETEM with loss state
Test 3785: Replace NETEM with delay time
Test 4502: Delete NETEM with handle
Test 0785: Show NETEM class

Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Victor Nogueira <victor@mojatatu.com>
Tested-by: Victor Nogueira <victor@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/netem.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/netem.json
new file mode 100644 (file)
index 0000000..7e41f54
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/netem.json
@@ -0,0 +1,372 @@
+[
+    {
+        "id": "cb28",
+        "name": "Create NETEM with default setting",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ limit",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "a089",
+        "name": "Create NETEM with limit flag",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem limit 200",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ limit 200",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "3449",
+        "name": "Create NETEM with delay time",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 100ms",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "3782",
+        "name": "Create NETEM with distribution and corrupt flag",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution normal corrupt 1%",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 100ms  10ms corrupt 1%",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "2b82",
+        "name": "Create NETEM with distribution and duplicate flag",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution normal duplicate 1%",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 100ms  10ms duplicate 1%",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "a932",
+        "name": "Create NETEM with distribution and loss flag",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution pareto loss 1%",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 100ms  10ms loss 1%",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "e01a",
+        "name": "Create NETEM with distribution and loss state flag",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution paretonormal loss state 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 100ms  10ms loss state p13 1% p31 99% p32 0% p23 100% p14 0%",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "ba29",
+        "name": "Create NETEM with loss gemodel flag",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem loss gemodel 1%",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*loss gemodel p 1%",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "0492",
+        "name": "Create NETEM with reorder flag",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms reorder 2% gap 100",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*reorder 2%",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "7862",
+        "name": "Create NETEM with rate limit",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem rate 20000",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*rate 20Kbit",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "7235",
+        "name": "Create NETEM with multiple slot rate",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem slot 10 200 packets 2000 bytes 9000",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*slot 10ns 200ns packets 2000 bytes 9000",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "5439",
+        "name": "Create NETEM with multiple slot setting",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem slot distribution pareto 1ms 0.1ms",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*slot distribution 1ms 100us",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "5029",
+        "name": "Change NETEM with loss state",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true",
+            "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution normal loss 1%"
+        ],
+        "cmdUnderTest": "$TC qdisc change dev $DUMMY handle 1: root netem delay 100ms 10ms distribution normal loss 2%",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*loss 2%",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "3785",
+        "name": "Replace NETEM with delay time",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true",
+            "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution normal loss 1%"
+        ],
+        "cmdUnderTest": "$TC qdisc replace dev $DUMMY handle 1: root netem delay 200ms 10ms",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 200ms  10ms",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "4502",
+        "name": "Delete NETEM with handle",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true",
+            "$TC qdisc add dev $DUMMY handle 1: root netem delay 100ms 10ms distribution normal"
+        ],
+        "cmdUnderTest": "$TC qdisc del dev $DUMMY handle 1: root",
+        "expExitCode": "0",
+        "verifyCmd": "$TC qdisc show dev $DUMMY",
+        "matchPattern": "qdisc netem 1: root refcnt [0-9]+ .*delay 100ms  10ms",
+        "matchCount": "0",
+        "teardown": [
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    },
+    {
+        "id": "0785",
+        "name": "Show NETEM class",
+        "category": [
+            "qdisc",
+            "netem"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$IP link add dev $DUMMY type dummy || /bin/true"
+        ],
+        "cmdUnderTest": "$TC qdisc add dev $DUMMY handle 1: root netem",
+        "expExitCode": "0",
+        "verifyCmd": "$TC class show dev $DUMMY",
+        "matchPattern": "class netem 1:",
+        "matchCount": "0",
+        "teardown": [
+            "$TC qdisc del dev $DUMMY handle 1: root",
+            "$IP link del dev $DUMMY type dummy"
+        ]
+    }
+]