tc-testing: initial tdc selftests for cls_u32

- move test "e9a3 - Add u32 with source match" to u32.json, and change the
  match pattern to catch all hnodes
- add testcases for relevant error paths of cls_u32 module

Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 205 insertions, 22 deletions

diff --git a/tools/testing/selftests/tc-testing/tc-tests/filters/tests.json b/tools/testing/selftests/tc-testing/tc-tests/filters/tests.json
index 0f89cd50a94b..8877f7b2b809 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/filters/tests.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/filters/tests.json
@@ -1,27 +1,5 @@
 [
     {
-        "id": "e9a3",
-        "name": "Add u32 with source match",
-        "category": [
-            "filter",
-            "u32"
-        ],
-        "plugins": {
-                "requires": "nsPlugin"
-        },
-        "setup": [
-            "$TC qdisc add dev $DEV1 ingress"
-        ],
-        "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: protocol ip prio 1 u32 match ip src 127.0.0.1/32 flowid 1:1 action ok",
-        "expExitCode": "0",
-        "verifyCmd": "$TC filter show dev $DEV1 parent ffff:",
-        "matchPattern": "match 7f000001/ffffffff at 12",
-        "matchCount": "1",
-        "teardown": [
-            "$TC qdisc del dev $DEV1 ingress"
-        ]
-    },
-    {
         "id": "2638",
         "name": "Add matchall and try to get it",
         "category": [
diff --git a/tools/testing/selftests/tc-testing/tc-tests/filters/u32.json b/tools/testing/selftests/tc-testing/tc-tests/filters/u32.json
new file mode 100644
index 000000000000..e09d3c0e307f
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/filters/u32.json
@@ -0,0 +1,205 @@
+[
+    {
+        "id": "afa9",
+        "name": "Add u32 with source match",
+        "category": [
+            "filter",
+            "u32"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter add dev $DEV1 ingress protocol ip prio 1 u32 match ip src 127.0.0.1/32 flowid 1:1 action ok",
+        "expExitCode": "0",
+        "verifyCmd": "$TC filter show dev $DEV1 ingress",
+        "matchPattern": "filter protocol ip pref 1 u32 chain (0[ ]+$|0 fh 800: ht divisor 1|0 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:1.*match 7f000001/ffffffff at 12)",
+        "matchCount": "3",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    },
+    {
+        "id": "6aa7",
+        "name": "Add/Replace u32 with source match and invalid indev",
+        "category": [
+            "filter",
+            "u32"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter replace dev $DEV1 ingress protocol ip prio 1 u32 match ip src 127.0.0.1/32 indev notexist20 flowid 1:1 action ok",
+        "expExitCode": "2",
+        "verifyCmd": "$TC filter show dev $DEV1 ingress",
+        "matchPattern": "filter protocol ip pref 1 u32 chain 0",
+        "matchCount": "0",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    },
+    {
+        "id": "bc4d",
+        "name": "Replace valid u32 with source match and invalid indev",
+        "category": [
+            "filter",
+            "u32"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$TC qdisc add dev $DEV1 ingress",
+            "$TC filter add dev $DEV1 ingress protocol ip prio 1 u32 match ip src 127.0.0.3/32 flowid 1:3 action ok"
+        ],
+        "cmdUnderTest": "$TC filter replace dev $DEV1 ingress protocol ip prio 1 u32 match ip src 127.0.0.2/32 indev notexist20 flowid 1:2 action ok",
+        "expExitCode": "2",
+        "verifyCmd": "$TC filter show dev $DEV1 ingress",
+        "matchPattern": "filter protocol ip pref 1 u32 chain (0[ ]+$|0 fh 800: ht divisor 1|0 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:3.*match 7f000003/ffffffff at 12)",
+        "matchCount": "3",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    },
+    {
+        "id": "648b",
+        "name": "Add u32 with custom hash table",
+        "category": [
+            "filter",
+            "u32"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter add dev $DEV1 ingress prio 99 handle 42: u32 divisor 256",
+        "expExitCode": "0",
+        "verifyCmd": "$TC filter show dev $DEV1 ingress",
+        "matchPattern": "pref 99 u32 chain (0[ ]+$|0 fh 42: ht divisor 256|0 fh 800: ht divisor 1)",
+        "matchCount": "3",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    },
+    {
+        "id": "6658",
+        "name": "Add/Replace u32 with custom hash table and invalid handle",
+        "category": [
+            "filter",
+            "u32"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter replace dev $DEV1 ingress prio 99 handle 42:42 u32 divisor 256",
+        "expExitCode": "2",
+        "verifyCmd": "$TC filter show dev $DEV1 ingress",
+        "matchPattern": "pref 99 u32 chain 0",
+        "matchCount": "0",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    },
+    {
+        "id": "9d0a",
+        "name": "Replace valid u32 with custom hash table and invalid handle",
+        "category": [
+            "filter",
+            "u32"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$TC qdisc add dev $DEV1 ingress",
+            "$TC filter add dev $DEV1 ingress prio 99 handle 42: u32 divisor 256"
+        ],
+        "cmdUnderTest": "$TC filter replace dev $DEV1 ingress prio 99 handle 42:42 u32 divisor 128",
+        "expExitCode": "2",
+        "verifyCmd": "$TC filter show dev $DEV1 ingress",
+        "matchPattern": "pref 99 u32 chain (0[ ]+$|0 fh 42: ht divisor 256|0 fh 800: ht divisor 1)",
+        "matchCount": "3",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    },
+    {
+        "id": "1644",
+        "name": "Add u32 filter that links to a custom hash table",
+        "category": [
+            "filter",
+            "u32"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$TC qdisc add dev $DEV1 ingress",
+            "$TC filter add dev $DEV1 ingress prio 99 handle 43: u32 divisor 256"
+        ],
+        "cmdUnderTest": "$TC filter add dev $DEV1 ingress protocol ip prio 98 u32 link 43: hashkey mask 0x0000ff00 at 12 match ip src 192.168.0.0/16",
+        "expExitCode": "0",
+        "verifyCmd": "$TC filter show dev $DEV1 ingress",
+        "matchPattern": "filter protocol ip pref 98 u32 chain (0[ ]+$|0 fh 801: ht divisor 1|0 fh 801::800 order 2048 key ht 801 bkt 0 link 43:.*match c0a80000/ffff0000 at 12.*hash mask 0000ff00 at 12)",
+        "matchCount": "3",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    },
+    {
+        "id": "74c2",
+        "name": "Add/Replace u32 filter with invalid hash table id",
+        "category": [
+            "filter",
+            "u32"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter replace dev $DEV1 ingress protocol ip prio 20 u32 ht 47:47 action drop",
+        "expExitCode": "2",
+        "verifyCmd": "$TC filter show dev $DEV1 ingress",
+        "matchPattern": "filter protocol ip pref 20 u32 chain 0",
+        "matchCount": "0",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    },
+    {
+        "id": "1fe6",
+        "name": "Replace valid u32 filter with invalid hash table id",
+        "category": [
+            "filter",
+            "u32"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            "$TC qdisc add dev $DEV1 ingress",
+            "$TC filter add dev $DEV1 ingress protocol ip prio 99 handle 43: u32 divisor 1",
+            "$TC filter add dev $DEV1 ingress protocol ip prio 98 u32 ht 43: match tcp src 22 FFFF classid 1:3"
+        ],
+        "cmdUnderTest": "$TC filter replace dev $DEV1 ingress protocol ip prio 98 u32 ht 43:1 match tcp src 23 FFFF classid 1:4",
+        "expExitCode": "2",
+        "verifyCmd": "$TC filter show dev $DEV1 ingress",
+        "matchPattern": "filter protocol ip pref 99 u32 chain (0[ ]+$|0 fh (43|800): ht divisor 1|0 fh 43::800 order 2048 key ht 43 bkt 0 flowid 1:3.*match 00160000/ffff0000 at nexthdr\\+0)",
+        "matchCount": "4",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    }
+]