iw: Complete Extended Key ID detection

Commit Message

Alexander Wetzel March 22, 2020, 4:35 p.m. UTC

info: update text to have a unified spelling
scan: flag Extended Key ID in scans

Signed-off-by: Alexander Wetzel <[e-mail]>
---

Add Extended Key ID detection to scans. While at it I also updated the
spelling for Extended Key ID to use capital letters to unify it with how
it's written in IEEE 802.11 and all other references.

Here a short sample:

BSS d0:ab:d5:82:2e:0e(on wlp2s0)
        TSF: 1839642566 usec (0d, 00:30:39)
        freq: 2422
        beacon interval: 100 TUs
        capability: ESS Privacy ShortPreamble ShortSlotTime (0x0431)
        signal: -33.00 dBm
        last seen: 5180 ms ago
        Information elements from Probe Response frame:
        SSID: Brix
        Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0
        DS Parameter set: channel 3
        Country: DE     Environment: Indoor/Outdoor
                Channels [1 - 13] @ 22 dBm
        ERP: <no flags>
        RSN:     * Version: 1
                 * Group cipher: CCMP
                 * Pairwise ciphers: CCMP
                 * Authentication suites: PSK SAE FT/SAE
                 * Capabilities: 16-PTKSA-RC 1-GTKSA-RC MFP-required MFP-capable Extended-Key-ID (0x20cc)
        BSS Load:
                 * station count: 0
                 * channel utilisation: 0/255
                 * available admission capacity: 0 [*32us]


 info.c | 2 +-
 scan.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

Patch

diff --git a/info.c b/info.c
index 97240f6..8d4cffc 100644
--- a/info.c
+++ b/info.c
@@ -698,7 +698,7 @@  broken_combination:
 			       "PMKSA caching supported in AP mode");
 		ext_feat_print(tb, SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD,
 			       "band specific RSSI thresholds for scheduled scan");
-		ext_feat_print(tb, EXT_KEY_ID, "extended key ID support");
+		ext_feat_print(tb, EXT_KEY_ID, "Extended Key ID support");
 		ext_feat_print(tb, STA_TX_PWR, "TX power control per station");
 		ext_feat_print(tb, SAE_OFFLOAD, "SAE offload support");
 		ext_feat_print(tb, VLAN_OFFLOAD, "VLAN offload support");
diff --git a/scan.c b/scan.c
index 1ccea94..57d4e9c 100644
--- a/scan.c
+++ b/scan.c
@@ -1018,6 +1018,8 @@  static void _print_rsn_ie(const char *defcipher, const char *defauth,
 			printf(" SPP-AMSDU-capable");
 		if (capa & 0x0800)
 			printf(" SPP-AMSDU-required");
+		if (capa & 0x2000)
+			printf(" Extended-Key-ID");
 		printf(" (0x%.4x)\n", capa);
 		data += 2;
 		len -= 2;