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Drop unprotected Robust Action frames from MFP STAs

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These frames are delivered through mac80211 monitor interface, so we
need to filter them out in hostapd.
This commit is contained in:
Jouni Malinen 2009-05-08 12:51:28 +03:00 committed by Jouni Malinen
parent 9e8cda5a46
commit c4e281fd91
2 changed files with 24 additions and 3 deletions
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25
hostapd/ieee802_11.c
View file

@ -1366,9 +1366,18 @@ static void hostapd_sa_query_action(struct hostapd_data *hapd,
#endif /* CONFIG_IEEE80211W */
static int robust_action_frame(u8 category)
{
return category != WLAN_ACTION_PUBLIC &&
category != WLAN_ACTION_HT;
}
static void handle_action(struct hostapd_data *hapd,
struct ieee80211_mgmt *mgmt, size_t len)
{
struct sta_info *sta;
if (len < IEEE80211_HDRLEN + 1) {
hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
@ -1377,13 +1386,23 @@ static void handle_action(struct hostapd_data *hapd,
return;
}
sta = ap_get_sta(hapd, mgmt->sa);
#ifdef CONFIG_IEEE80211W
if (sta && (sta->flags & WLAN_STA_MFP) &&
!(mgmt->frame_control & host_to_le16(WLAN_FC_ISWEP) &&
robust_action_frame(mgmt->u.action.category))) {
hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"Dropped unprotected Robust Action frame from "
"an MFP STA");
return;
}
#endif /* CONFIG_IEEE80211W */
switch (mgmt->u.action.category) {
#ifdef CONFIG_IEEE80211R
case WLAN_ACTION_FT:
{
struct sta_info *sta;
sta = ap_get_sta(hapd, mgmt->sa);
if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) {
wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignored FT Action "
"frame from unassociated STA " MACSTR,

2
src/common/ieee802_11_defs.h
View file

@ -214,8 +214,10 @@
#define WLAN_ACTION_QOS 1
#define WLAN_ACTION_DLS 2
#define WLAN_ACTION_BLOCK_ACK 3
#define WLAN_ACTION_PUBLIC 4
#define WLAN_ACTION_RADIO_MEASUREMENT 5
#define WLAN_ACTION_FT 6
#define WLAN_ACTION_HT 7
#define WLAN_ACTION_SA_QUERY 8
#define WLAN_ACTION_WMM 17 /* WMM Specification 1.1 */