mirror of
https://github.com/vanhoefm/fragattacks.git
synced 2024-12-03 20:58:49 -05:00
442819406c
A weakness in the initial client taxonomy mechanism is from storing both the Probe and Associate in struct sta_info. struct sta_info is created after a client associates (or starts authentication frame exchange), which means that any Probe Request frames sent prior to association are not retained. The Associate Request frame has to be seen, and then another Probe Request frame after association, before we have a signature for the client. Most clients send lots of Probe Request frames (lots and lots and lots of Probes, actually), but a few do not. ChromeOS is notably sparing in sending Probe Request frames, it can take a long time before a signature for a ChromeOS device is available. Store the most recent Probe Request frame in struct hostapd_sta_info tracking list. When a struct sta_info is created, move the Probe Request frame information from struct hostapd_sta_info to struct sta_info. Signed-off-by: dgentry@google.com (Denton Gentry) Signed-off-by: denny@geekhold.com (Denton Gentry) Signed-off-by: rofrankel@google.com (Richard Frankel) Signed-off-by: richard@frankel.tv (Richard Frankel)
34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
/*
|
|
* hostapd / IEEE 802.11 Management: Beacon and Probe Request/Response
|
|
* Copyright (c) 2002-2004, Instant802 Networks, Inc.
|
|
* Copyright (c) 2005-2006, Devicescape Software, Inc.
|
|
*
|
|
* This software may be distributed under the terms of the BSD license.
|
|
* See README for more details.
|
|
*/
|
|
|
|
#ifndef BEACON_H
|
|
#define BEACON_H
|
|
|
|
struct ieee80211_mgmt;
|
|
|
|
void handle_probe_req(struct hostapd_data *hapd,
|
|
const struct ieee80211_mgmt *mgmt, size_t len,
|
|
int ssi_signal);
|
|
int ieee802_11_set_beacon(struct hostapd_data *hapd);
|
|
int ieee802_11_set_beacons(struct hostapd_iface *iface);
|
|
int ieee802_11_update_beacons(struct hostapd_iface *iface);
|
|
int ieee802_11_build_ap_params(struct hostapd_data *hapd,
|
|
struct wpa_driver_ap_params *params);
|
|
void ieee802_11_free_ap_params(struct wpa_driver_ap_params *params);
|
|
void sta_track_add(struct hostapd_iface *iface, const u8 *addr);
|
|
void sta_track_del(struct hostapd_sta_info *info);
|
|
void sta_track_expire(struct hostapd_iface *iface, int force);
|
|
struct hostapd_data *
|
|
sta_track_seen_on(struct hostapd_iface *iface, const u8 *addr,
|
|
const char *ifname);
|
|
void sta_track_claim_taxonomy_info(struct hostapd_iface *iface, const u8 *addr,
|
|
struct wpabuf **probe_ie_taxonomy);
|
|
|
|
#endif /* BEACON_H */
|