From 6cc6a8a2cbba69acddcf7eda73e9ea3d052f87ac Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vivek=20Das=C2=A0Mohapatra?= <vivek@collabora.com>
Date: Sat, 5 Oct 2024 03:19:28 +0100
Subject: [PATCH] unit: add a test for harmless IE clones

Test handling of technically illegal but harmless cloned IEs.
Based on real traffic captured from retail APs.

As cloned IEs are now allowed the

  "/IE order/Bad (Duplicate + Out of Order IE) 1"

test payload has been altered to be more-wrong so it still fails
verification as expected.
---
 unit/test-mpdu.c | 84 +++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 83 insertions(+), 1 deletion(-)

diff --git a/unit/test-mpdu.c b/unit/test-mpdu.c
index 89b5bb0a..416756e9 100644
--- a/unit/test-mpdu.c
+++ b/unit/test-mpdu.c
@@ -145,7 +145,7 @@ static const uint8_t probe_req_ie_duplicate1[] = {
 	0x00, 0x00, 0x03, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x50, 0x64,
 	/* SSID, SSID, Supported Rates, Extended Supported Rates */
 	0x00, 0x05, 0x74, 0x65, 0x73, 0x74, 0x31, 0x00, 0x05, 0x74, 0x65, 0x73,
-	0x74, 0x31, 0x01, 0x08, 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24,
+	0x74, 0x32, 0x01, 0x08, 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24,
 	0x32, 0x04, 0x30, 0x48, 0x60, 0x6c,
 };
 
@@ -168,6 +168,85 @@ static const struct test_frame_data probe_req_ie_out_of_order2_data = {
 	probe_req_ie_out_of_order2, sizeof(probe_req_ie_out_of_order2), true
 };
 
+static const uint8_t assoc_rsp_ie_ooo_tolerated_dup[] = {
+	/* Association Response Flags (24 bytes)*/
+	0x10, 0x00, 0x24, 0x00, 0xe8, 0x8d, 0xa6, 0x77, 0xa7, 0x37, 0x0a, 0x58,
+	0x28, 0x16, 0x65, 0x42, 0x0a, 0x58, 0x28, 0x16, 0x65, 0x42, 0x40, 0x14,
+	/* Fixed Parameters (6 bytes) */
+	0x31, 0x19, 0x00, 0x00, 0x08, 0xc0,
+	/* Tagged parameters: 364 bytes */
+	/* Support Rates [1] (10 bytes) */
+	0x01, 0x08, 0x8c, 0x12, 0x98, 0x24, 0xb0, 0x48, 0x60, 0x6c,
+	/* Vendor Specific [221] (12 bytes) */
+	0xdd, 0x0a, 0x50, 0x6f, 0x9a, 0x1b, 0x06, 0x01, 0x20, 0x07, 0x01, 0x03,
+	/* RM Enabled Capabilities [70] (7 bytes) */
+	0x46, 0x05, 0x02, 0x00, 0x00, 0x00, 0x00,
+	/* Vendor Specific [221] (26 bytes) */
+	0xdd, 0x18, 0x00, 0x50, 0xf2, 0x02, 0x01, 0x01, 0x86, 0x00, 0x03, 0xa4,
+	0x00, 0x00, 0x27, 0xa4, 0x00, 0x00, 0x42, 0x43, 0x5e, 0x00, 0x62, 0x32,
+	0x2f, 0x00,
+	/* HT Capabilities [45] (28 bytes) */
+	0x2d, 0x1a, 0xef, 0x09, 0x03, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18,
+	0x04, 0x87, 0x19, 0x00,
+	/* HT Information [61] (24 bytes)*/
+	0x3d, 0x16, 0x24, 0x05, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* Vendor Specific [221] (32 bytes) */
+	0xdd, 0x1e, 0x00, 0x90, 0x4c, 0x33, 0xef, 0x09, 0x03, 0xff, 0xff, 0xff,
+	0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x18, 0x04, 0x87, 0x19, 0x00,
+	/* Vendor Specific [221] (28 bytes) */
+	0xdd, 0x1a, 0x00, 0x90, 0x4c, 0x34, 0x24, 0x05, 0x06, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	/* BSS Max Idle Period [90] (5 bytes)*/
+	0x5a, 0x03, 0xe0, 0x01, 0x00,
+	/* VHT Capabilities [191] (14 bytes)*/
+	0xbf, 0x0c, 0xf5, 0x39, 0xc3, 0x33, 0x9a, 0xff, 0x30, 0x0c, 0x9a, 0xff,
+	0x30, 0x2c,
+	/* VHT Operation [192] (7 bytes) */
+	0xc0, 0x05, 0x01, 0x2a, 0x00, 0xfc, 0xff,
+	/* Extended: HE Capabilities 80211ax/D3.0 [256 + 35] (38 bytes) */
+	0xff, 0x24, 0x23, 0x05, 0x00, 0x08, 0x1a, 0x44, 0x10, 0x0c, 0x20, 0xce,
+	0x92, 0x6f, 0x1b, 0xaf, 0xd4, 0x11, 0x0c, 0x00, 0xaa, 0xff, 0xaa, 0xff,
+	0xaa, 0xff, 0xaa, 0xff, 0x3b, 0x1c, 0xc7, 0x71, 0x1c, 0xc7, 0x71, 0x1c,
+	0xc7, 0x71,
+	/* Extended: HE Operation 80211ax/D3.0 [256 + 36] (9 bytes) */
+	0xff, 0x07, 0x24, 0xf4, 0x3f, 0x00, 0x17, 0xfc, 0xff,
+	/* Extended: Spatial Reuse Parameter Set [256 + 39] (4 bytes) */
+	0xff, 0x02, 0x27, 0x03,
+	/* Extended: MU EDCA Parameter Set [256 + 38] (16 bytes) */
+	0xff, 0x0e, 0x26, 0x06, 0x00, 0xff, 0x00, 0x20, 0xff, 0x00, 0x40, 0xff,
+	0x00, 0x60, 0xff, 0x00,
+	/* Extended Capabilities [127] (13 bytes) */
+	0x7f, 0x0b, 0x00, 0x00, 0x08, 0x80, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40,
+	0x00,
+	/* Vendor Specific [221] (9 bytes) */
+	0xdd, 0x07, 0x00, 0x0c, 0x43, 0x00, 0x00, 0x00, 0x00,
+	/* Vendor Specific [221] (35 bytes) */
+	0xdd, 0x21, 0x00, 0x0c, 0xe7, 0x00, 0x00, 0x00, 0x00, 0xbf, 0x0c, 0xb1,
+	0x01, 0xc0, 0x33, 0x2a, 0xff, 0x92, 0x04, 0x2a, 0xff, 0x92, 0x04, 0xc0,
+	0x05, 0x00, 0x00, 0x00, 0x2a, 0xff, 0xc3, 0x03, 0x01, 0x02, 0x02,
+	/* Vendor Specific [221] (9 bytes) */
+	0xdd, 0x07, 0x50, 0x6f, 0x9a, 0x16, 0x01, 0x01, 0x00,
+	/* RSN Extension [244] (3 bytes) */
+	0xf4, 0x01, 0x20,
+	/* Vendor Specific [221] (9 bytes) */ /* Legal duplicate IE */
+	0xdd, 0x07, 0x50, 0x6f, 0x9a, 0x16, 0x01, 0x01, 0x00,
+	/* FILS Indication [240] (4 bytes) */
+	0xf0, 0x02, 0x00, 0x00,
+	/* RSN Extension [244] (3 bytes) */ /* TECHNICALLY ILLEGAL cloned ie */
+	0xf4, 0x01, 0x20,
+	/* Vendor Specific [221] (19 bytes) */
+	0xdd, 0x11, 0x00, 0x0c, 0xe7, 0x01, 0x00, 0x00, 0x00, 0x04, 0x08, 0x02,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static const struct test_frame_data assoc_rsp_ie_ooo_tolerated_dup_data = {
+	assoc_rsp_ie_ooo_tolerated_dup, sizeof(assoc_rsp_ie_ooo_tolerated_dup), true
+};
+
 static void ie_order_test(const void *data)
 {
 	const struct test_frame_data *frame = data;
@@ -227,6 +306,9 @@ int main(int argc, char *argv[])
 	l_test_add("/IE order/Bad (Duplicate + Out of Order IE) 1",
 				ie_order_test,
 				&probe_req_ie_duplicate1_data);
+	l_test_add("/IE order/Ugly (Duplicate + Out of Order IE) 2",
+				ie_order_test,
+				&assoc_rsp_ie_ooo_tolerated_dup_data);
 	l_test_add("/IE order/Good (Out of Order IE) 2", ie_order_test,
 				&probe_req_ie_out_of_order2_data);