2 files changed, 148 insertions, 0 deletions
diff --git a/tools/testing/selftests/tc-testing/creating-testcases/scapy-example.json b/tools/testing/selftests/tc-testing/creating-testcases/scapy-example.json
new file mode 100644
index 000000000000..5a9377b72d7f
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/creating-testcases/scapy-example.json
@@ -0,0 +1,98 @@
+[
+    {
+        "id": "b1e9",
+        "name": "Test matching of source IP",
+        "category": [
+            "actions",
+            "scapy"
+        ],
+        "plugins": {
+            "requires": [
+                "nsPlugin",
+                "scapyPlugin"
+            ]
+        },
+        "setup": [
+            [
+                "$TC qdisc del dev $DEV1 ingress",
+                0,
+                1,
+                2,
+                255
+            ],
+            "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: prio 3 protocol ip flower src_ip 16.61.16.61 flowid 1:1 action ok",
+        "scapy": {
+            "iface": "$DEV0",
+            "count": 1,
+            "packet": "Ether(type=0x800)/IP(src='16.61.16.61')/ICMP()"
+        },
+        "expExitCode": "0",
+        "verifyCmd": "$TC -s -j filter ls dev $DEV1 ingress prio 3",
+        "matchJSON": [
+            {
+                "path": [
+                    1,
+                    "options",
+                    "actions",
+                    0,
+                    "stats",
+                    "packets"
+                ],
+                "value": 1
+            }
+        ],
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    },
+    {
+        "id": "e9c4",
+        "name": "Test matching of source IP with wrong count",
+        "category": [
+            "actions",
+            "scapy"
+        ],
+        "plugins": {
+            "requires": [
+                "nsPlugin",
+                "scapyPlugin"
+            ]
+        },
+        "setup": [
+            [
+                "$TC qdisc del dev $DEV1 ingress",
+                0,
+                1,
+                2,
+                255
+            ],
+            "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: prio 3 protocol ip flower src_ip 16.61.16.61 flowid 1:1 action ok",
+        "scapy": {
+            "iface": "$DEV0",
+            "count": 3,
+            "packet": "Ether(type=0x800)/IP(src='16.61.16.61')/ICMP()"
+        },
+        "expExitCode": "0",
+        "verifyCmd": "$TC -s -j filter ls dev $DEV1 parent ffff:",
+        "matchJSON": [
+            {
+                "path": [
+                    1,
+                    "options",
+                    "actions",
+                    0,
+                    "stats",
+                    "packets"
+                ],
+                "value": 1
+            }
+        ],
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py b/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py
new file mode 100644
index 000000000000..229ee185b27e
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py
@@ -0,0 +1,50 @@
+#!/usr/bin/env python3
+
+import os
+import signal
+from string import Template
+import subprocess
+import time
+from TdcPlugin import TdcPlugin
+
+from tdc_config import *
+
+try:
+    from scapy.all import *
+except ImportError:
+    print("Unable to import the scapy python module.")
+    print("\nIf not already installed, you may do so with:")
+    print("\t\tpip3 install scapy==2.4.2")
+    exit(1)
+
+class SubPlugin(TdcPlugin):
+    def __init__(self):
+        self.sub_class = 'scapy/SubPlugin'
+        super().__init__()
+
+    def post_execute(self):
+        if 'scapy' not in self.args.caseinfo:
+            if self.args.verbose:
+                print('{}.post_execute: no scapy info in test case'.format(self.sub_class))
+            return
+
+        # Check for required fields
+        scapyinfo = self.args.caseinfo['scapy']
+        scapy_keys = ['iface', 'count', 'packet']
+        missing_keys = []
+        keyfail = False
+        for k in scapy_keys:
+            if k not in scapyinfo:
+                keyfail = True
+                missing_keys.add(k)
+        if keyfail:
+            print('{}: Scapy block present in the test, but is missing info:'
+                .format(self.sub_class))
+            print('{}'.format(missing_keys))
+
+        pkt = eval(scapyinfo['packet'])
+        if '$' in scapyinfo['iface']:
+            tpl = Template(scapyinfo['iface'])
+            scapyinfo['iface'] = tpl.safe_substitute(NAMES)
+        for count in range(scapyinfo['count']):
+            sendp(pkt, iface=scapyinfo['iface'])