[PATCH] MFP: Clear IGTK

Masashi Honma honma at ictec.co.jp
Thu Oct 8 00:14:16 EDT 2009


Hello.

The fourth and fifth keys are used as IGTK for management frame
protection. This patch clears theses keys.


diff --git a/wpa_supplicant/wpa_supplicant.c b/wpa_supplicant/wpa_supplicant.c
index 37a1927..896f989 100644
--- a/wpa_supplicant/wpa_supplicant.c
+++ b/wpa_supplicant/wpa_supplicant.c
@@ -457,6 +457,10 @@ void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr)
 	wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 1, 0, NULL, 0, NULL, 0);
 	wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 2, 0, NULL, 0, NULL, 0);
 	wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 3, 0, NULL, 0, NULL, 0);
+#ifdef CONFIG_IEEE80211W
+	wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 4, 0, NULL, 0, NULL, 0);
+	wpa_drv_set_key(wpa_s, WPA_ALG_NONE, bcast, 5, 0, NULL, 0, NULL, 0);
+#endif /* CONFIG_IEEE80211W */
 	if (addr) {
 		wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL,
 				0);


I have tested with linux kernel 2.6.31.2.

Regards,
Masashi Honma.


More information about the HostAP mailing list