[PATCH 2/2] iw: scan: print RSN Element Override IEs

[Alex Gavin <a_gavin@icloud.com>]

Parse body of RSN Element Override IEs as RSN IEs
using existing code.

RSN IEs are a minimum size of 4 octets, as detailed
in IEEE802.11-2024, 9.4.2.23.1

Example output:
RSN Element Override:
	 * Version: 1
	 * Group cipher: CCMP
	 * Pairwise ciphers: CCMP
	 * Authentication suites: SAE
	 * Capabilities: 16-PTKSA-RC 1-GTKSA-RC MFP-required MFP-capable (0x00cc)
RSN Element Override 2:
	 * Version: 1
	 * Group cipher: CCMP
	 * Pairwise ciphers: GCMP-256
	 * Authentication suites: SAE-EXT-KEY
	 * Capabilities: 16-PTKSA-RC 1-GTKSA-RC MFP-required MFP-capable (0x00cc)

Signed-off-by: Alex Gavin <a_gavin@icloud.com>
---
 scan.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/scan.c b/scan.c
index 4d3284e..2b6e904 100644
--- a/scan.c
+++ b/scan.c
@@ -1893,6 +1893,14 @@ static void print_wifi_osen(const uint8_t type, uint8_t len,
 	print_osen_ie("OSEN", "OSEN", len, data);
 }
 
+static void print_wifi_rsn_override(const uint8_t type, uint8_t len,
+			    const uint8_t *data,
+			    const struct ie_context *ctx)
+{
+	printf("\n\t");
+	print_rsn_ie("CCMP", "IEEE802.1X", len, data);
+}
+
 static bool print_wifi_wmm_param(const uint8_t *data, uint8_t len)
 {
 	int i;
@@ -2344,6 +2352,8 @@ static const struct ie_print wfa_printers[] = {
 	[16] = { "HotSpot 2.0 Indication", print_hs20_ind, 1, 255, BIT(PRINT_SCAN), },
 	[18] = { "HotSpot 2.0 OSEN", print_wifi_osen, 1, 255, BIT(PRINT_SCAN), },
 	[28] = { "OWE Transition Mode", print_wifi_owe_trans, 7, 255, BIT(PRINT_SCAN), },
+	[41] = { "RSN Element Override", print_wifi_rsn_override, 4, 255, BIT(PRINT_SCAN), },
+	[42] = { "RSN Element Override 2", print_wifi_rsn_override, 4, 255, BIT(PRINT_SCAN), },
 };
 
 static void print_vendor(unsigned char len, unsigned char *data,
-- 
2.51.2