From d14fbbd3372732132a6e62a859b8e014b0f947da Mon Sep 17 00:00:00 2001
From: Philippe Antoine <contact@catenacyber.fr>
Date: Tue, 23 Feb 2021 14:50:44 +0100
Subject: [PATCH] Adds test about decoder against too many layers

---
 tests/decode-too-many-layers/README.md  |   7 +++++++
 tests/decode-too-many-layers/ethmpls.py |  11 +++++++++++
 tests/decode-too-many-layers/input.pcap | Bin 0 -> 744 bytes
 tests/decode-too-many-layers/test.yaml  |  12 ++++++++++++
 4 files changed, 30 insertions(+)
 create mode 100644 tests/decode-too-many-layers/README.md
 create mode 100644 tests/decode-too-many-layers/ethmpls.py
 create mode 100644 tests/decode-too-many-layers/input.pcap
 create mode 100644 tests/decode-too-many-layers/test.yaml

diff --git a/tests/decode-too-many-layers/README.md b/tests/decode-too-many-layers/README.md
new file mode 100644
index 000000000..957c845cf
--- /dev/null
+++ b/tests/decode-too-many-layers/README.md
@@ -0,0 +1,7 @@
+# Description
+
+Test decode against too many recursive layers
+
+# PCAP
+
+The pcap comes from funning fuzzpcap against the file produced by ethmpls.py
diff --git a/tests/decode-too-many-layers/ethmpls.py b/tests/decode-too-many-layers/ethmpls.py
new file mode 100644
index 000000000..8a21d8fe7
--- /dev/null
+++ b/tests/decode-too-many-layers/ethmpls.py
@@ -0,0 +1,11 @@
+import sys
+
+# write header
+sys.stdout.buffer.write(b"FPC\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00")
+for i in range(32):
+    # ethernet layer with mpls following
+    sys.stdout.buffer.write(b"\x01\x02\x03\x04\x05\x06\x01\x02\x03\x04\x05\x07\x88\x47")
+    # mpls layer with ethernet following
+    sys.stdout.buffer.write(b"\x00\x01\x01\x00\x00\x00\x00\x00")
+# write footer
+sys.stdout.buffer.write(b"FPC0")
diff --git a/tests/decode-too-many-layers/input.pcap b/tests/decode-too-many-layers/input.pcap
new file mode 100644
index 0000000000000000000000000000000000000000..1e40a802516647d0b9d324f0f630fcf64031a964
GIT binary patch
literal 744
xc-p&ic+)~A1{MYw`2U}Qfsp|L4lqG5BNH<VD;t<(?{H^egs2%69TgoKq5!a}CG-FQ

literal 0
Hc-jL100001

diff --git a/tests/decode-too-many-layers/test.yaml b/tests/decode-too-many-layers/test.yaml
new file mode 100644
index 000000000..0d625ee77
--- /dev/null
+++ b/tests/decode-too-many-layers/test.yaml
@@ -0,0 +1,12 @@
+requires:
+  features:
+    - HAVE_LIBJANSSON
+  min-version: 5
+
+# disables checksum verification
+args:
+- -k none
+
+checks:
+    - stats:
+        decoder.too_many_layers: 1
-- 
2.47.2