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HS 2.0R2: Add STA support for Deauthentication Request notification 

If requested, disable the network based on the HS 2.0 deauthentication
request.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2013-07-26 22:12:37 +03:00 committed by Jouni Malinen
parent 95a3ea9426
commit 7ef6947993
6 changed files with 85 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/common/ieee802_11_defs.h
View File

@ -916,6 +916,10 @@ enum {
/* WNM-Notification WFA vendors specific subtypes */
#define HS20_WNM_SUB_REM_NEEDED 0
#define HS20_WNM_DEAUTH_IMMINENT_NOTICE 1
#define HS20_DEAUTH_REASON_CODE_BSS 0
#define HS20_DEAUTH_REASON_CODE_ESS 1
/* Wi-Fi Direct (P2P) */

1
src/common/wpa_ctrl.h
View File

@ -169,6 +169,7 @@ extern "C" {
#define GAS_QUERY_DONE "GAS-QUERY-DONE "
#define HS20_SUBSCRIPTION_REMEDIATION "HS20-SUBSCRIPTION-REMEDIATION "
#define HS20_DEAUTH_IMMINENT_NOTICE "HS20-DEAUTH-IMMINENT-NOTICE "
#define EXT_RADIO_WORK_START "EXT-RADIO-WORK-START "
#define EXT_RADIO_WORK_TIMEOUT "EXT-RADIO-WORK-TIMEOUT "

32
wpa_supplicant/hs20_supplicant.c
View File

@ -14,10 +14,12 @@
#include "common/ieee802_11_defs.h"
#include "common/gas.h"
#include "common/wpa_ctrl.h"
#include "rsn_supp/wpa.h"
#include "wpa_supplicant_i.h"
#include "driver_i.h"
#include "config.h"
#include "bss.h"
#include "blacklist.h"
#include "gas_query.h"
#include "interworking.h"
#include "hs20_supplicant.h"
@ -246,3 +248,33 @@ void hs20_rx_subscription_remediation(struct wpa_supplicant *wpa_s,
else
wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION);
}
void hs20_rx_deauth_imminent_notice(struct wpa_supplicant *wpa_s, u8 code,
u16 reauth_delay, const char *url)
{
if (!wpa_sm_pmf_enabled(wpa_s->wpa)) {
wpa_printf(MSG_DEBUG, "HS 2.0: Ignore deauthentication imminent notice since PMF was not enabled");
return;
}
wpa_msg(wpa_s, MSG_INFO, HS20_DEAUTH_IMMINENT_NOTICE "%u %u %s",
code, reauth_delay, url);
if (code == HS20_DEAUTH_REASON_CODE_BSS) {
wpa_printf(MSG_DEBUG, "HS 2.0: Add BSS to blacklist");
wpa_blacklist_add(wpa_s, wpa_s->bssid);
}
if (code == HS20_DEAUTH_REASON_CODE_ESS && wpa_s->current_ssid) {
struct os_time now;
os_get_time(&now);
if (now.sec + reauth_delay <=
wpa_s->current_ssid->disabled_until.sec)
return;
wpa_printf(MSG_DEBUG, "HS 2.0: Disable network for %u seconds",
reauth_delay);
wpa_s->current_ssid->disabled_until.sec =
now.sec + reauth_delay;
}
}

2
wpa_supplicant/hs20_supplicant.h
View File

@ -22,5 +22,7 @@ int hs20_get_pps_mo_id(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid);
void hs20_rx_subscription_remediation(struct wpa_supplicant *wpa_s,
const char *url, u8 osu_method);
void hs20_rx_deauth_imminent_notice(struct wpa_supplicant *wpa_s, u8 code,
u16 reauth_delay, const char *url);
#endif /* HS20_SUPPLICANT_H */

47
wpa_supplicant/wnm_sta.c
View File

@ -756,7 +756,7 @@ static void ieee802_11_rx_wnm_notif_req_wfa(struct wpa_supplicant *wpa_s,
const u8 *sa, const u8 *data,
int len)
{
const u8 *pos, *end;
const u8 *pos, *end, *next;
u8 ie, ie_len;
pos = data;
@ -772,6 +772,13 @@ static void ieee802_11_rx_wnm_notif_req_wfa(struct wpa_supplicant *wpa_s,
"subelement");
break;
}
next = pos + ie_len;
if (ie_len < 4) {
pos = next;
continue;
}
wpa_printf(MSG_DEBUG, "WNM: Subelement OUI %06x type %u",
WPA_GET_BE24(pos), pos[3]);
#ifdef CONFIG_HS20
if (ie == WLAN_EID_VENDOR_SPECIFIC && ie_len >= 5 &&
@ -809,11 +816,45 @@ static void ieee802_11_rx_wnm_notif_req_wfa(struct wpa_supplicant *wpa_s,
hs20_rx_subscription_remediation(wpa_s, url,
osu_method);
os_free(url);
break;
pos = next;
continue;
}
if (ie == WLAN_EID_VENDOR_SPECIFIC && ie_len >= 8 &&
WPA_GET_BE24(pos) == OUI_WFA &&
pos[3] == HS20_WNM_DEAUTH_IMMINENT_NOTICE) {
const u8 *ie_end;
u8 url_len;
char *url;
u8 code;
u16 reauth_delay;
ie_end = pos + ie_len;
pos += 4;
code = *pos++;
reauth_delay = WPA_GET_LE16(pos);
pos += 2;
url_len = *pos++;
wpa_printf(MSG_DEBUG, "WNM: HS 2.0 Deauthentication "
"Imminent - Reason Code %u "
"Re-Auth Delay %u URL Length %u",
code, reauth_delay, url_len);
if (pos + url_len > ie_end)
break;
url = os_malloc(url_len + 1);
if (url == NULL)
break;
os_memcpy(url, pos, url_len);
url[url_len] = '\0';
hs20_rx_deauth_imminent_notice(wpa_s, code,
reauth_delay, url);
os_free(url);
pos = next;
continue;
}
#endif /* CONFIG_HS20 */
pos += ie_len;
pos = next;
}
}

2
wpa_supplicant/wpa_cli.c
View File

@ -3183,6 +3183,8 @@ static void wpa_cli_action_process(const char *msg)
wpa_cli_exec(action_file, ctrl_ifname, pos);
} else if (str_match(pos, HS20_SUBSCRIPTION_REMEDIATION)) {
wpa_cli_exec(action_file, ctrl_ifname, pos);
} else if (str_match(pos, HS20_DEAUTH_IMMINENT_NOTICE)) {
wpa_cli_exec(action_file, ctrl_ifname, pos);
} else if (str_match(pos, WPA_EVENT_TERMINATING)) {
printf("wpa_supplicant is terminating - stop monitoring\n");
wpa_cli_quit = 1;