From 9117721cbccaa1ff73fcff92bb49b91c6ecf31d8 Mon Sep 17 00:00:00 2001
From: Alice Akaki <akakialice@gmail.com>
Date: Thu, 7 Nov 2024 17:12:46 -0400
Subject: [PATCH] test: add test for vlan.id

Ticket: #1065
---
 tests/detect-vlan-id/README.md    |   3 ++
 tests/detect-vlan-id/input.pcap   | Bin 0 -> 94 bytes
 tests/detect-vlan-id/test.rules   |   9 +++++
 tests/detect-vlan-id/test.yaml    |  56 ++++++++++++++++++++++++++++++
 tests/detect-vlan-id/writepcap.py |  17 +++++++++
 5 files changed, 85 insertions(+)
 create mode 100644 tests/detect-vlan-id/README.md
 create mode 100644 tests/detect-vlan-id/input.pcap
 create mode 100644 tests/detect-vlan-id/test.rules
 create mode 100644 tests/detect-vlan-id/test.yaml
 create mode 100644 tests/detect-vlan-id/writepcap.py

diff --git a/tests/detect-vlan-id/README.md b/tests/detect-vlan-id/README.md
new file mode 100644
index 000000000..bb496914b
--- /dev/null
+++ b/tests/detect-vlan-id/README.md
@@ -0,0 +1,3 @@
+Test for checking the working of vlan.id keyword by creating rules and matching a crafted packet against them. The packet is an ICMP packet with 3 different VLAN ids [200,300,400].
+
+PCAP created with scapy 2.5.0.
diff --git a/tests/detect-vlan-id/input.pcap b/tests/detect-vlan-id/input.pcap
new file mode 100644
index 0000000000000000000000000000000000000000..35ee79b95ee4d0e807dad33c74a1e6fde07226a7
GIT binary patch
literal 94
zcmca|c+)~A1{MYw`2U}Qff2}guC1Hi`InQy49EsyB`^>KgGL616O9avIzT*ugTa-7
YK?bD7fwAN^BM>kF0SCi(pg9Z-0C{c@&;S4c

literal 0
HcmV?d00001

diff --git a/tests/detect-vlan-id/test.rules b/tests/detect-vlan-id/test.rules
new file mode 100644
index 000000000..b88286efa
--- /dev/null
+++ b/tests/detect-vlan-id/test.rules
@@ -0,0 +1,9 @@
+alert ip any any -> any any (msg:"Vlan ID is equal to 200 with specific layer"; vlan.id:200,0; sid:1;)
+alert ip any any -> any any (msg:"One Vlan ID is equal to 300"; vlan.id:300; sid:2;)
+alert ip any any -> any any (msg:"Last Vlan ID is equal to 400"; vlan.id:400,-1; sid:3;)
+alert ip any any -> any any (msg:"Vlan ID is equal to 300 with specific layer"; vlan.id:0x12C,1; sid:4;)
+alert ip any any -> any any (msg:"Vlan ID at layer 1 is not equal to 200"; vlan.id:!200,1; sid:5;)
+alert ip any any -> any any (msg:"There is no VLAN ID equal to 500"; vlan.id:!500; sid:6;)
+alert ip any any -> any any (msg:"VLAN ID at layer 2 is between 100 and 600"; vlan.id:100-600,2; sid:7;)
+alert ip any any -> any any (msg:"VLAN ID at layer 1 is less than 400"; vlan.id:<400,1; sid:8;)
+alert ip any any -> any any (msg:"One Vlan ID is greater than or equal to 200"; vlan.id:>=0xC8; sid:9;)
\ No newline at end of file
diff --git a/tests/detect-vlan-id/test.yaml b/tests/detect-vlan-id/test.yaml
new file mode 100644
index 000000000..911393ca6
--- /dev/null
+++ b/tests/detect-vlan-id/test.yaml
@@ -0,0 +1,56 @@
+requires:
+ min-version: 8
+
+args:
+- -k none
+
+checks:
+- filter:
+   count: 1
+   match:
+     event_type: alert
+     vlan[0]: 200
+     alert.signature_id: 1
+- filter:
+   count: 1
+   match:
+     event_type: alert
+     vlan[1]: 300
+     alert.signature_id: 2
+- filter:
+   count: 1
+   match:
+     event_type: alert
+     vlan[2]: 400
+     alert.signature_id: 3
+- filter:
+   count: 1
+   match:
+     event_type: alert
+     vlan[1]: 300
+     alert.signature_id: 4
+- filter:
+   count: 1
+   match:
+     event_type: alert
+     alert.signature_id: 5
+- filter:
+   count: 1
+   match:
+     event_type: alert
+     alert.signature_id: 6
+- filter:
+   count: 1
+   match:
+     event_type: alert
+     alert.signature_id: 7
+- filter:
+   count: 1
+   match:
+     event_type: alert
+     alert.signature_id: 8
+- filter:
+   count: 1
+   match:
+     event_type: alert
+     alert.signature_id: 9
\ No newline at end of file
diff --git a/tests/detect-vlan-id/writepcap.py b/tests/detect-vlan-id/writepcap.py
new file mode 100644
index 000000000..c0e3663f5
--- /dev/null
+++ b/tests/detect-vlan-id/writepcap.py
@@ -0,0 +1,17 @@
+#! /usr/bin/env python3
+from scapy.all import *
+
+CLIENT_MAC = "11:11:11:11:11:11"
+SERVER_MAC = "22:22:22:22:22:22"
+
+CLIENT_IP = "1.1.1.1"
+SERVER_IP = "2.2.2.2"
+
+request = (Ether(src=CLIENT_MAC, dst=SERVER_MAC) /
+               Dot1Q(vlan=200) /
+               Dot1Q(vlan=300) /
+               Dot1Q(vlan=400) /
+               IP(src=CLIENT_IP, dst=SERVER_IP) /
+               ICMP(type=8))
+
+wrpcap("input.pcap", request, append=False)
\ No newline at end of file