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hostapd/wpa_supplicant/sme.c

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Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
/*
* wpa_supplicant - SME
FT: Request reassociation after successful FT Action frame exchange
2010-03-13 16:14:41 +01:00
* Copyright (c) 2009-2010, Jouni Malinen <j@w1.fi>
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*/
#include "includes.h"
#include "common.h"
Remove src/common from default header file path This makes it clearer which files are including header from src/common. Some of these cases should probably be cleaned up in the future not to do that. In addition, src/common/nl80211_copy.h and wireless_copy.h were moved into src/drivers since they are only used by driver wrappers and do not need to live in src/common.
2009-11-29 16:51:55 +01:00
#include "common/ieee802_11_defs.h"
Fix SME to update WPA/RSN IE for rsn_supp module based on AssocReq When using wpa_supplicant SME (i.e., using nl80211), the rsn_supp module was not informed of the WPA/RSN IE that was used in (Re)Association Request frame. This broke roaming between APs that use different security policy (e.g., changing between WPA/TKIP and WPA2/CCMP APs) or when using PMKSA caching.
2010-04-07 09:31:06 +02:00
#include "common/ieee802_11_common.h"
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
#include "eapol_supp/eapol_supp_sm.h"
Remove src/common from default header file path This makes it clearer which files are including header from src/common. Some of these cases should probably be cleaned up in the future not to do that. In addition, src/common/nl80211_copy.h and wireless_copy.h were moved into src/drivers since they are only used by driver wrappers and do not need to live in src/common.
2009-11-29 16:51:55 +01:00
#include "common/wpa_common.h"
Remove src/rsn_supp from default header path
2009-11-29 17:28:08 +01:00
#include "rsn_supp/wpa.h"
#include "rsn_supp/pmksa_cache.h"
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
#include "config.h"
#include "wpa_supplicant_i.h"
Add preliminary hostapd data structure initialization for AP mode wpa_supplicant can now initialize hostapd data structures when mode=2 is used to set up an AP. The hostapd configuration is not yet set based on wpa_supplicant network configuration block. In addition, the glue code for hostapd driver_ops needs number of functions that will be needed for AP functionality.
2009-03-26 19:37:05 +01:00
#include "driver_i.h"
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
#include "wpas_glue.h"
#include "wps_supplicant.h"
P2P: Add P2P IE into (Re)Association Request frames
2010-07-18 23:30:25 +02:00
#include "p2p_supplicant.h"
Add wpa_supplicant notification calls This introduces a new mechanism for collecting notification calls into a single place (notify.c). As a result of this, most of the wpa_supplicant code does not need to know about dbus (etc. mechanisms that could use the notifications). Some empty placeholder functions are also added in preparation of new dbus code that needs more event notifications.
2009-09-13 19:53:32 +02:00
#include "notify.h"
SME: Improve processing of association rejection Force deauthentication from the AP to clear mac80211 state (it would get stuck with future scans if the AP is left in authenticated, but not associated, state). Add blacklist entry for the AP to allow other APs with worse signal strength to be tried (e.g., when APs are trying to do load balancing with status code 17). Reduce wait for the next scan to speed up connection in cases where there could be other APs that could accept association, but which show worse signal strength.
2009-10-31 22:21:43 +01:00
#include "blacklist.h"
Use BSS table entry instead of raw scan result for connection
2010-01-02 15:16:02 +01:00
#include "bss.h"
Move wpa_supplicant specific scan code away from src/drivers This fits better in wpa_supplicant/scan.c. Couple of remaining scan_helpers.c functions are currently used in driver wrappers, but they can likely be removed in the future.
2010-01-03 17:48:11 +01:00
#include "scan.h"
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
#include "sme.h"
void sme_authenticate(struct wpa_supplicant *wpa_s,
Use BSS table entry instead of raw scan result for connection
2010-01-02 15:16:02 +01:00
struct wpa_bss *bss, struct wpa_ssid *ssid)
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
{
struct wpa_driver_auth_params params;
Add wpa_supplicant notification calls This introduces a new mechanism for collecting notification calls into a single place (notify.c). As a result of this, most of the wpa_supplicant code does not need to know about dbus (etc. mechanisms that could use the notifications). Some empty placeholder functions are also added in preparation of new dbus code that needs more event notifications.
2009-09-13 19:53:32 +02:00
struct wpa_ssid *old_ssid;
Fix CONFIG_AP=y build after driver API changes
2010-01-03 12:05:54 +01:00
#ifdef CONFIG_IEEE80211R
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
const u8 *ie;
Fix CONFIG_AP=y build after driver API changes
2010-01-03 12:05:54 +01:00
#endif /* CONFIG_IEEE80211R */
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
#ifdef CONFIG_IEEE80211R
const u8 *md = NULL;
#endif /* CONFIG_IEEE80211R */
Add wpa_supplicant notification calls This introduces a new mechanism for collecting notification calls into a single place (notify.c). As a result of this, most of the wpa_supplicant code does not need to know about dbus (etc. mechanisms that could use the notifications). Some empty placeholder functions are also added in preparation of new dbus code that needs more event notifications.
2009-09-13 19:53:32 +02:00
int i, bssid_changed;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
if (bss == NULL) {
wpa_printf(MSG_ERROR, "SME: No scan result available for the "
"network");
return;
}
Maintain a pointer to the current BSS table entry
2010-01-02 15:59:19 +01:00
wpa_s->current_bss = bss;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
os_memset(&params, 0, sizeof(params));
wpa_s->reassociate = 0;
params.freq = bss->freq;
params.bssid = bss->bssid;
Use BSS table entry instead of raw scan result for connection
2010-01-02 15:16:02 +01:00
params.ssid = bss->ssid;
params.ssid_len = bss->ssid_len;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
nl80211/SME: Use reassociation when roaming within the ESS
2009-11-17 18:25:05 +01:00
if (wpa_s->sme.ssid_len != params.ssid_len ||
os_memcmp(wpa_s->sme.ssid, params.ssid, params.ssid_len) != 0)
wpa_s->sme.prev_bssid_set = 0;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
wpa_s->sme.freq = params.freq;
os_memcpy(wpa_s->sme.ssid, params.ssid, params.ssid_len);
wpa_s->sme.ssid_len = params.ssid_len;
Standardize on a single definition of auth_alg bitfield values
2010-01-03 20:14:40 +01:00
params.auth_alg = WPA_AUTH_ALG_OPEN;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
#ifdef IEEE8021X_EAPOL
if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
if (ssid->leap) {
if (ssid->non_leap == 0)
Standardize on a single definition of auth_alg bitfield values
2010-01-03 20:14:40 +01:00
params.auth_alg = WPA_AUTH_ALG_LEAP;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
else
Standardize on a single definition of auth_alg bitfield values
2010-01-03 20:14:40 +01:00
params.auth_alg |= WPA_AUTH_ALG_LEAP;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
}
}
#endif /* IEEE8021X_EAPOL */
wpa_printf(MSG_DEBUG, "Automatic auth_alg selection: 0x%x",
params.auth_alg);
if (ssid->auth_alg) {
Standardize on a single definition of auth_alg bitfield values
2010-01-03 20:14:40 +01:00
params.auth_alg = ssid->auth_alg;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
wpa_printf(MSG_DEBUG, "Overriding auth_alg selection: 0x%x",
params.auth_alg);
}
nl80211: Fix static WEP key configuration when using SME Need to set WEP keys before requesting authentication in order to get Shared Key authentication working. Previously, the WEP keys were not set at all when using SME in wpa_supplicant.
2009-04-04 15:58:16 +02:00
for (i = 0; i < NUM_WEP_KEYS; i++) {
if (ssid->wep_key_len[i])
params.wep_key[i] = ssid->wep_key[i];
params.wep_key_len[i] = ssid->wep_key_len[i];
}
params.wep_tx_keyidx = ssid->wep_tx_keyidx;
Add wpa_supplicant notification calls This introduces a new mechanism for collecting notification calls into a single place (notify.c). As a result of this, most of the wpa_supplicant code does not need to know about dbus (etc. mechanisms that could use the notifications). Some empty placeholder functions are also added in preparation of new dbus code that needs more event notifications.
2009-09-13 19:53:32 +02:00
bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
os_memset(wpa_s->bssid, 0, ETH_ALEN);
os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
Add wpa_supplicant notification calls This introduces a new mechanism for collecting notification calls into a single place (notify.c). As a result of this, most of the wpa_supplicant code does not need to know about dbus (etc. mechanisms that could use the notifications). Some empty placeholder functions are also added in preparation of new dbus code that needs more event notifications.
2009-09-13 19:53:32 +02:00
if (bssid_changed)
wpas_notify_bssid_changed(wpa_s);
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
Remove unnecessary bss != NULL checks from sme_authenticate() This is already verified in the beginning of the function, so no need to repeat that multiple times.
2010-01-10 20:31:54 +01:00
if ((wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
(ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK |
WPA_KEY_MGMT_FT_IEEE8021X |
WPA_KEY_MGMT_FT_PSK |
WPA_KEY_MGMT_IEEE8021X_SHA256 |
WPA_KEY_MGMT_PSK_SHA256))) {
int try_opportunistic;
try_opportunistic = ssid->proactive_key_caching &&
(ssid->proto & WPA_PROTO_RSN);
if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
wpa_s->current_ssid,
try_opportunistic) == 0)
eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
wpa_s->sme.assoc_req_ie,
&wpa_s->sme.assoc_req_ie_len)) {
wpa_printf(MSG_WARNING, "SME: Failed to set WPA key "
"management and encryption suites");
return;
}
} else if (ssid->key_mgmt &
(WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
WPA_KEY_MGMT_WPA_NONE | WPA_KEY_MGMT_FT_PSK |
WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_PSK_SHA256 |
WPA_KEY_MGMT_IEEE8021X_SHA256)) {
wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
wpa_s->sme.assoc_req_ie,
&wpa_s->sme.assoc_req_ie_len)) {
wpa_printf(MSG_WARNING, "SME: Failed to set WPA key "
"management and encryption suites (no scan "
"results)");
return;
}
#ifdef CONFIG_WPS
} else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
struct wpabuf *wps_ie;
wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
if (wps_ie && wpabuf_len(wps_ie) <=
sizeof(wpa_s->sme.assoc_req_ie)) {
wpa_s->sme.assoc_req_ie_len = wpabuf_len(wps_ie);
os_memcpy(wpa_s->sme.assoc_req_ie, wpabuf_head(wps_ie),
wpa_s->sme.assoc_req_ie_len);
} else
wpa_s->sme.assoc_req_ie_len = 0;
wpabuf_free(wps_ie);
wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
#endif /* CONFIG_WPS */
} else {
wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
wpa_s->sme.assoc_req_ie_len = 0;
}
#ifdef CONFIG_IEEE80211R
Use BSS table entry instead of raw scan result for connection
2010-01-02 15:16:02 +01:00
ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
md = ie + 2;
FT: Clean up wpa_sm_set_ft_params() by using common parse Instead of parsing the IEs in the callers, use the already existing parser in wpa_ft.c to handle MDIE and FTIE from initial MD association response. In addition, this provides more complete access to association response IEs to FT code which will be needed to fix FT 4-way handshake message 2/4.
2010-04-10 10:36:35 +02:00
wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
if (md) {
/* Prepare for the next transition */
FT: Copy FT Capability and Policy to MDIE from target AP This sets the FT Capability and Policy field in the MDIE to the values received from the target AP (if available). This fixes the MDIE contents during FT Protocol, but the correct value may not yet be used in initial mobility domain association.
2010-04-09 15:26:20 +02:00
wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
}
if (md && ssid->key_mgmt & (WPA_KEY_MGMT_FT_PSK |
WPA_KEY_MGMT_FT_IEEE8021X)) {
if (wpa_s->sme.assoc_req_ie_len + 5 <
sizeof(wpa_s->sme.assoc_req_ie)) {
struct rsn_mdie *mdie;
u8 *pos = wpa_s->sme.assoc_req_ie +
wpa_s->sme.assoc_req_ie_len;
*pos++ = WLAN_EID_MOBILITY_DOMAIN;
*pos++ = sizeof(*mdie);
mdie = (struct rsn_mdie *) pos;
os_memcpy(mdie->mobility_domain, md,
MOBILITY_DOMAIN_ID_LEN);
FT: Set FT Capability and Policy properly in MDIE during initial MD assoc This field needs to be copied from the scan results for the AP per IEEE Std 802.11r-2008, 11A.4.2.
2010-04-09 15:41:57 +02:00
mdie->ft_capab = md[MOBILITY_DOMAIN_ID_LEN];
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
wpa_s->sme.assoc_req_ie_len += 5;
}
if (wpa_s->sme.ft_used &&
SME: Do not try to use FT over-the-air if PTK is not available
2010-04-10 21:39:49 +02:00
os_memcmp(md, wpa_s->sme.mobility_domain, 2) == 0 &&
wpa_sm_has_ptk(wpa_s->wpa)) {
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
wpa_printf(MSG_DEBUG, "SME: Trying to use FT "
"over-the-air");
Standardize on a single definition of auth_alg bitfield values
2010-01-03 20:14:40 +01:00
params.auth_alg = WPA_AUTH_ALG_FT;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
params.ie = wpa_s->sme.ft_ies;
params.ie_len = wpa_s->sme.ft_ies_len;
}
}
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IEEE80211W
Share the same enum for MFP configuration The three existing enums were already depending on using the same values in couple of places and it is just simpler to standardize on one of these to avoid need for mapping between different enums for the exact same thing.
2010-01-03 20:02:51 +01:00
wpa_s->sme.mfp = ssid->ieee80211w;
Remove unnecessary bss != NULL checks from sme_authenticate() This is already verified in the beginning of the function, so no need to repeat that multiple times.
2010-01-10 20:31:54 +01:00
if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
Use BSS table entry instead of raw scan result for connection
2010-01-02 15:16:02 +01:00
const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
struct wpa_ie_data _ie;
if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &_ie) == 0 &&
_ie.capabilities &
(WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
wpa_printf(MSG_DEBUG, "WPA: Selected AP supports MFP: "
"require MFP");
wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED;
}
}
#endif /* CONFIG_IEEE80211W */
P2P: Add P2P IE into (Re)Association Request frames
2010-07-18 23:30:25 +02:00
#ifdef CONFIG_P2P
if (wpa_s->global->p2p) {
u8 *pos;
size_t len;
int res;
int p2p_group;
p2p_group = wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE;
pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len;
len = sizeof(wpa_s->sme.assoc_req_ie) -
wpa_s->sme.assoc_req_ie_len;
P2P: Include P2P IE in (Re)AssocReq to infra AP if it uses P2P IE While this is not strictly speaking required by the P2P specification for a not-P2P Managed Device, this can provide useful information for the P2P manager AP and may be needed to pass certification tests.
2010-07-07 06:37:20 +02:00
res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, p2p_group);
P2P: Add P2P IE into (Re)Association Request frames
2010-07-18 23:30:25 +02:00
if (res >= 0)
wpa_s->sme.assoc_req_ie_len += res;
}
#endif /* CONFIG_P2P */
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
wpa_supplicant_cancel_scan(wpa_s);
wpa_msg(wpa_s, MSG_INFO, "Trying to authenticate with " MACSTR
" (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
wpa_ssid_txt(params.ssid, params.ssid_len), params.freq);
wpa_clear_keys(wpa_s, bss->bssid);
wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
Add wpa_supplicant notification calls This introduces a new mechanism for collecting notification calls into a single place (notify.c). As a result of this, most of the wpa_supplicant code does not need to know about dbus (etc. mechanisms that could use the notifications). Some empty placeholder functions are also added in preparation of new dbus code that needs more event notifications.
2009-09-13 19:53:32 +02:00
old_ssid = wpa_s->current_ssid;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
wpa_s->current_ssid = ssid;
wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
wpa_supplicant_initiate_eapol(wpa_s);
Add wpa_supplicant notification calls This introduces a new mechanism for collecting notification calls into a single place (notify.c). As a result of this, most of the wpa_supplicant code does not need to know about dbus (etc. mechanisms that could use the notifications). Some empty placeholder functions are also added in preparation of new dbus code that needs more event notifications.
2009-09-13 19:53:32 +02:00
if (old_ssid != wpa_s->current_ssid)
wpas_notify_network_changed(wpa_s);
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
FT: Process reassoc resp FT IEs when using wpa_supplicant SME
2010-03-13 20:13:18 +01:00
wpa_s->sme.auth_alg = params.auth_alg;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
if (wpa_drv_authenticate(wpa_s, &params) < 0) {
wpa_msg(wpa_s, MSG_INFO, "Authentication request to the "
"driver failed");
SME: Retry scan after authentication failure This is needed to avoid getting stuck if driver fails authentication request for some reason.
2010-07-18 05:27:19 +02:00
wpa_supplicant_req_scan(wpa_s, 1, 0);
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
return;
}
/* TODO: add timeout on authentication */
/*
* Association will be started based on the authentication event from
* the driver.
*/
}
void sme_event_auth(struct wpa_supplicant *wpa_s, union wpa_event_data *data)
{
struct wpa_ssid *ssid = wpa_s->current_ssid;
if (ssid == NULL) {
wpa_printf(MSG_DEBUG, "SME: Ignore authentication event when "
"network is not selected");
return;
}
if (wpa_s->wpa_state != WPA_AUTHENTICATING) {
wpa_printf(MSG_DEBUG, "SME: Ignore authentication event when "
"not in authenticating state");
return;
}
if (os_memcmp(wpa_s->pending_bssid, data->auth.peer, ETH_ALEN) != 0) {
wpa_printf(MSG_DEBUG, "SME: Ignore authentication with "
"unexpected peer " MACSTR,
MAC2STR(data->auth.peer));
return;
}
wpa_printf(MSG_DEBUG, "SME: Authentication response: peer=" MACSTR
" auth_type=%d status_code=%d",
MAC2STR(data->auth.peer), data->auth.auth_type,
data->auth.status_code);
wpa_hexdump(MSG_MSGDUMP, "SME: Authentication response IEs",
data->auth.ies, data->auth.ies_len);
if (data->auth.status_code != WLAN_STATUS_SUCCESS) {
wpa_printf(MSG_DEBUG, "SME: Authentication failed (status "
"code %d)", data->auth.status_code);
sme: Try all authentication algorithms when the first one fails When passing several authentication algorithms through auth_alg, we should try all of them when the first one fails. The wext driver goes through the connect nl80211 command and the retries are then handled by the kernel. The nl80211 doesn't and we have to handle that from userspace. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-17 15:39:33 +02:00
if (data->auth.status_code !=
WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG ||
wpa_s->sme.auth_alg == data->auth.auth_type ||
SME: Fix re-try after auth/assoc timeout/failure There were various issues in how the SME (i.e., nl80211-based driver interface) handled various authentication and association timeouts and failures. Authentication failure was not handled at all (wpa_supplicant just stopped trying to connect completely), authentication timeout resulted in blacklisting not working in the expected way (i.e., the same BSS could be selected continuously), and association cases had similar problems. Use a common function to handle all these cases and fix the blacklist operation. Use smaller delay before trying to scan again during the initial cycle through the available APs to speed up connection. Add a special case for another-BSS-in-the-same-ESS being present to speed up recovery from networks with multiple APs doing load balancing in various odd ways that are deployed out there.
2010-11-25 21:00:04 +01:00
wpa_s->current_ssid->auth_alg == WPA_AUTH_ALG_LEAP) {
Extend load balancing optimization in BSS blacklisting Move the previously SME specific optimization code into generic function that can be used from non-SME code, too, and use it to handle disconnection events. In other words, allow disconnection event to trigger similar optimized scanning case to handle a common load balancing mechanism. If there is another BSS in the same ESS when we receive a disconnection event, scan only the known frequencies of such other BSSes on the next attempt to speed up recovery.
2010-11-26 10:36:03 +01:00
wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
sme: Try all authentication algorithms when the first one fails When passing several authentication algorithms through auth_alg, we should try all of them when the first one fails. The wext driver goes through the connect nl80211 command and the retries are then handled by the kernel. The nl80211 doesn't and we have to handle that from userspace. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-17 15:39:33 +02:00
return;
SME: Fix re-try after auth/assoc timeout/failure There were various issues in how the SME (i.e., nl80211-based driver interface) handled various authentication and association timeouts and failures. Authentication failure was not handled at all (wpa_supplicant just stopped trying to connect completely), authentication timeout resulted in blacklisting not working in the expected way (i.e., the same BSS could be selected continuously), and association cases had similar problems. Use a common function to handle all these cases and fix the blacklist operation. Use smaller delay before trying to scan again during the initial cycle through the available APs to speed up connection. Add a special case for another-BSS-in-the-same-ESS being present to speed up recovery from networks with multiple APs doing load balancing in various odd ways that are deployed out there.
2010-11-25 21:00:04 +01:00
}
sme: Try all authentication algorithms when the first one fails When passing several authentication algorithms through auth_alg, we should try all of them when the first one fails. The wext driver goes through the connect nl80211 command and the retries are then handled by the kernel. The nl80211 doesn't and we have to handle that from userspace. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-17 15:39:33 +02:00
switch (data->auth.auth_type) {
case WLAN_AUTH_OPEN:
wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_SHARED;
wpa_printf(MSG_DEBUG, "SME: Trying SHARED auth");
wpa_supplicant_associate(wpa_s, wpa_s->current_bss,
wpa_s->current_ssid);
return;
case WLAN_AUTH_SHARED_KEY:
wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_LEAP;
wpa_printf(MSG_DEBUG, "SME: Trying LEAP auth");
wpa_supplicant_associate(wpa_s, wpa_s->current_bss,
wpa_s->current_ssid);
return;
default:
return;
}
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
}
#ifdef CONFIG_IEEE80211R
if (data->auth.auth_type == WLAN_AUTH_FT) {
union wpa_event_data edata;
os_memset(&edata, 0, sizeof(edata));
edata.ft_ies.ies = data->auth.ies;
edata.ft_ies.ies_len = data->auth.ies_len;
os_memcpy(edata.ft_ies.target_ap, data->auth.peer, ETH_ALEN);
wpa_supplicant_event(wpa_s, EVENT_FT_RESPONSE, &edata);
}
#endif /* CONFIG_IEEE80211R */
FT: Request reassociation after successful FT Action frame exchange
2010-03-13 16:14:41 +01:00
sme_associate(wpa_s, ssid->mode, data->auth.peer,
data->auth.auth_type);
}
void sme_associate(struct wpa_supplicant *wpa_s, enum wpas_mode mode,
const u8 *bssid, u16 auth_type)
{
struct wpa_driver_associate_params params;
Fix SME to update WPA/RSN IE for rsn_supp module based on AssocReq When using wpa_supplicant SME (i.e., using nl80211), the rsn_supp module was not informed of the WPA/RSN IE that was used in (Re)Association Request frame. This broke roaming between APs that use different security policy (e.g., changing between WPA/TKIP and WPA2/CCMP APs) or when using PMKSA caching.
2010-04-07 09:31:06 +02:00
struct ieee802_11_elems elems;
FT: Request reassociation after successful FT Action frame exchange
2010-03-13 16:14:41 +01:00
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
os_memset(&params, 0, sizeof(params));
FT: Request reassociation after successful FT Action frame exchange
2010-03-13 16:14:41 +01:00
params.bssid = bssid;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
params.ssid = wpa_s->sme.ssid;
params.ssid_len = wpa_s->sme.ssid_len;
params.freq = wpa_s->sme.freq;
params.wpa_ie = wpa_s->sme.assoc_req_ie_len ?
wpa_s->sme.assoc_req_ie : NULL;
params.wpa_ie_len = wpa_s->sme.assoc_req_ie_len;
#ifdef CONFIG_IEEE80211R
FT: Request reassociation after successful FT Action frame exchange
2010-03-13 16:14:41 +01:00
if (auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies) {
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
params.wpa_ie = wpa_s->sme.ft_ies;
params.wpa_ie_len = wpa_s->sme.ft_ies_len;
}
#endif /* CONFIG_IEEE80211R */
FT: Request reassociation after successful FT Action frame exchange
2010-03-13 16:14:41 +01:00
params.mode = mode;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
params.mgmt_frame_protection = wpa_s->sme.mfp;
nl80211/SME: Use reassociation when roaming within the ESS
2009-11-17 18:25:05 +01:00
if (wpa_s->sme.prev_bssid_set)
params.prev_bssid = wpa_s->sme.prev_bssid;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
" (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
params.ssid ? wpa_ssid_txt(params.ssid, params.ssid_len) : "",
params.freq);
wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
SME: Handle association without own extra IEs Need to check for this before calling ieee802_11_parse_elems().
2010-04-11 11:19:02 +02:00
if (params.wpa_ie == NULL ||
ieee802_11_parse_elems(params.wpa_ie, params.wpa_ie_len, &elems, 0)
Fix SME to update WPA/RSN IE for rsn_supp module based on AssocReq When using wpa_supplicant SME (i.e., using nl80211), the rsn_supp module was not informed of the WPA/RSN IE that was used in (Re)Association Request frame. This broke roaming between APs that use different security policy (e.g., changing between WPA/TKIP and WPA2/CCMP APs) or when using PMKSA caching.
2010-04-07 09:31:06 +02:00
< 0) {
wpa_printf(MSG_DEBUG, "SME: Could not parse own IEs?!");
os_memset(&elems, 0, sizeof(elems));
}
if (elems.rsn_ie)
wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.rsn_ie - 2,
elems.rsn_ie_len + 2);
else if (elems.wpa_ie)
wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.wpa_ie - 2,
elems.wpa_ie_len + 2);
else
wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
P2P: Let the driver wrapper know if association is for P2P group
2010-07-18 23:30:25 +02:00
if (elems.p2p &&
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
params.p2p = 1;
Fix SME to update WPA/RSN IE for rsn_supp module based on AssocReq When using wpa_supplicant SME (i.e., using nl80211), the rsn_supp module was not informed of the WPA/RSN IE that was used in (Re)Association Request frame. This broke roaming between APs that use different security policy (e.g., changing between WPA/TKIP and WPA2/CCMP APs) or when using PMKSA caching.
2010-04-07 09:31:06 +02:00
P2P: Add mechanism for configuring UAPSD parameters for group This is needed to be able to change parameters for dynamically created interfaces between the creation of the interface and association/start AP commands. Following ctrl_interface commands can now be used: P2P_SET client_apsd disable - disable configuration (i.e., use driver default) in client mode P2P_SET client_apsd <BE>,<BK>,<VI>,<VO>;<max SP Length> - enable UASPD with specific trigger configuration (0/1) per AC (max SP Length is currently ignored) P2P_SET go_apsd disable - disable configuration (i.e., use driver default) in AP mode P2P_SET go_apsd <0/1> - disable/enable APSD in AP mode
2010-07-28 19:18:52 +02:00
if (wpa_s->parent->set_sta_uapsd)
params.uapsd = wpa_s->parent->sta_uapsd;
else
params.uapsd = -1;
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
if (wpa_drv_associate(wpa_s, &params) < 0) {
wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
"failed");
SME: Optimize recovery from assocication command failures mac80211 can indicate this mainly because of channel selection conflicts with other vifs. If there is another BSS on another channel, we should try to connect to it instead.
2010-11-26 16:37:22 +01:00
wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
Add SME support (separate authentication and association) This can be used, e.g., with mac80211-based Linux drivers with nl80211. This allows over-the-air FT protocol to be used (IEEE 802.11r). Since the nl80211 interface needed for this is very recent (added today into wireless-testing.git), driver_nl80211.c has backwards compatibility code that uses WEXT for association if the kernel does not support the new commands. This compatibility code can be disabled by defining NO_WEXT_COMPAT. That code will also be removed at some point to clean up driver_nl80211.c.
2009-03-20 21:26:41 +01:00
return;
}
/* TODO: add timeout on association */
}
int sme_update_ft_ies(struct wpa_supplicant *wpa_s, const u8 *md,
const u8 *ies, size_t ies_len)
{
if (md == NULL || ies == NULL) {
wpa_printf(MSG_DEBUG, "SME: Remove mobility domain");
os_free(wpa_s->sme.ft_ies);
wpa_s->sme.ft_ies = NULL;
wpa_s->sme.ft_ies_len = 0;
wpa_s->sme.ft_used = 0;
return 0;
}
os_memcpy(wpa_s->sme.mobility_domain, md, MOBILITY_DOMAIN_ID_LEN);
wpa_hexdump(MSG_DEBUG, "SME: FT IEs", ies, ies_len);
os_free(wpa_s->sme.ft_ies);
wpa_s->sme.ft_ies = os_malloc(ies_len);
if (wpa_s->sme.ft_ies == NULL)
return -1;
os_memcpy(wpa_s->sme.ft_ies, ies, ies_len);
wpa_s->sme.ft_ies_len = ies_len;
return 0;
}
SME: Add processing for rejected associations
2009-04-01 16:10:36 +02:00
void sme_event_assoc_reject(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
Add wpa_supplicant notification calls This introduces a new mechanism for collecting notification calls into a single place (notify.c). As a result of this, most of the wpa_supplicant code does not need to know about dbus (etc. mechanisms that could use the notifications). Some empty placeholder functions are also added in preparation of new dbus code that needs more event notifications.
2009-09-13 19:53:32 +02:00
int bssid_changed;
SME: Improve processing of association rejection Force deauthentication from the AP to clear mac80211 state (it would get stuck with future scans if the AP is left in authenticated, but not associated, state). Add blacklist entry for the AP to allow other APs with worse signal strength to be tried (e.g., when APs are trying to do load balancing with status code 17). Reduce wait for the next scan to speed up connection in cases where there could be other APs that could accept association, but which show worse signal strength.
2009-10-31 22:21:43 +01:00
wpa_printf(MSG_DEBUG, "SME: Association with " MACSTR " failed: "
"status code %d", MAC2STR(wpa_s->pending_bssid),
SME: Add processing for rejected associations
2009-04-01 16:10:36 +02:00
data->assoc_reject.status_code);
Add wpa_supplicant notification calls This introduces a new mechanism for collecting notification calls into a single place (notify.c). As a result of this, most of the wpa_supplicant code does not need to know about dbus (etc. mechanisms that could use the notifications). Some empty placeholder functions are also added in preparation of new dbus code that needs more event notifications.
2009-09-13 19:53:32 +02:00
bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
SME: Improve processing of association rejection Force deauthentication from the AP to clear mac80211 state (it would get stuck with future scans if the AP is left in authenticated, but not associated, state). Add blacklist entry for the AP to allow other APs with worse signal strength to be tried (e.g., when APs are trying to do load balancing with status code 17). Reduce wait for the next scan to speed up connection in cases where there could be other APs that could accept association, but which show worse signal strength.
2009-10-31 22:21:43 +01:00
/*
* For now, unconditionally terminate the previous authentication. In
* theory, this should not be needed, but mac80211 gets quite confused
* if the authentication is left pending.. Some roaming cases might
* benefit from using the previous authentication, so this could be
* optimized in the future.
*/
if (wpa_drv_deauthenticate(wpa_s, wpa_s->pending_bssid,
WLAN_REASON_DEAUTH_LEAVING) < 0) {
wpa_msg(wpa_s, MSG_INFO,
"Deauth request to the driver failed");
}
nl80211/SME: Use reassociation when roaming within the ESS
2009-11-17 18:25:05 +01:00
wpa_s->sme.prev_bssid_set = 0;
SME: Improve processing of association rejection Force deauthentication from the AP to clear mac80211 state (it would get stuck with future scans if the AP is left in authenticated, but not associated, state). Add blacklist entry for the AP to allow other APs with worse signal strength to be tried (e.g., when APs are trying to do load balancing with status code 17). Reduce wait for the next scan to speed up connection in cases where there could be other APs that could accept association, but which show worse signal strength.
2009-10-31 22:21:43 +01:00
Extend load balancing optimization in BSS blacklisting Move the previously SME specific optimization code into generic function that can be used from non-SME code, too, and use it to handle disconnection events. In other words, allow disconnection event to trigger similar optimized scanning case to handle a common load balancing mechanism. If there is another BSS in the same ESS when we receive a disconnection event, scan only the known frequencies of such other BSSes on the next attempt to speed up recovery.
2010-11-26 10:36:03 +01:00
wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
SME: Improve processing of association rejection Force deauthentication from the AP to clear mac80211 state (it would get stuck with future scans if the AP is left in authenticated, but not associated, state). Add blacklist entry for the AP to allow other APs with worse signal strength to be tried (e.g., when APs are trying to do load balancing with status code 17). Reduce wait for the next scan to speed up connection in cases where there could be other APs that could accept association, but which show worse signal strength.
2009-10-31 22:21:43 +01:00
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
SME: Add processing for rejected associations
2009-04-01 16:10:36 +02:00
os_memset(wpa_s->bssid, 0, ETH_ALEN);
os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
Add wpa_supplicant notification calls This introduces a new mechanism for collecting notification calls into a single place (notify.c). As a result of this, most of the wpa_supplicant code does not need to know about dbus (etc. mechanisms that could use the notifications). Some empty placeholder functions are also added in preparation of new dbus code that needs more event notifications.
2009-09-13 19:53:32 +02:00
if (bssid_changed)
wpas_notify_bssid_changed(wpa_s);
SME: Add processing for rejected associations
2009-04-01 16:10:36 +02:00
}
Add handling of SME auth/assoc timeout events This allows wpa_supplicant to start searching for other APs (or re-try) if the MLME times out.
2009-04-23 23:08:24 +02:00
void sme_event_auth_timed_out(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
wpa_printf(MSG_DEBUG, "SME: Authentication timed out");
Extend load balancing optimization in BSS blacklisting Move the previously SME specific optimization code into generic function that can be used from non-SME code, too, and use it to handle disconnection events. In other words, allow disconnection event to trigger similar optimized scanning case to handle a common load balancing mechanism. If there is another BSS in the same ESS when we receive a disconnection event, scan only the known frequencies of such other BSSes on the next attempt to speed up recovery.
2010-11-26 10:36:03 +01:00
wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
Add handling of SME auth/assoc timeout events This allows wpa_supplicant to start searching for other APs (or re-try) if the MLME times out.
2009-04-23 23:08:24 +02:00
}
void sme_event_assoc_timed_out(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
wpa_printf(MSG_DEBUG, "SME: Association timed out");
Extend load balancing optimization in BSS blacklisting Move the previously SME specific optimization code into generic function that can be used from non-SME code, too, and use it to handle disconnection events. In other words, allow disconnection event to trigger similar optimized scanning case to handle a common load balancing mechanism. If there is another BSS in the same ESS when we receive a disconnection event, scan only the known frequencies of such other BSSes on the next attempt to speed up recovery.
2010-11-26 10:36:03 +01:00
wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
Add handling of SME auth/assoc timeout events This allows wpa_supplicant to start searching for other APs (or re-try) if the MLME times out.
2009-04-23 23:08:24 +02:00
wpa_supplicant_mark_disassoc(wpa_s);
}
SME: Deauthenticate to clear state after disassociation events cfg80211/mac80211 can get into somewhat confused state if the AP only disassociates us and leaves us in authenticated state. For now, force the state to be cleared with deauthentication to avoid confusing errors if we try to associate with the AP again. This gets rid of 30 second delay (scan timeout) in cases where only a disassociation frame is received from the AP.
2009-12-02 16:26:28 +01:00
void sme_event_disassoc(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
wpa_printf(MSG_DEBUG, "SME: Disassociation event received");
sme: Check for prev_bssid from sme_event_disassoc wpa_s->bssid is already cleared by mark_disassoc() when we're getting the disassociation event for the case where wpa_supplicant requested disassociation. wpa_s->sme.prev_bssid holds the BSSID we need to check for, so use that instead. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-18 20:23:26 +02:00
if (wpa_s->sme.prev_bssid_set &&
SME: Deauthenticate to clear state after disassociation events cfg80211/mac80211 can get into somewhat confused state if the AP only disassociates us and leaves us in authenticated state. For now, force the state to be cleared with deauthentication to avoid confusing errors if we try to associate with the AP again. This gets rid of 30 second delay (scan timeout) in cases where only a disassociation frame is received from the AP.
2009-12-02 16:26:28 +01:00
!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)) {
/*
* cfg80211/mac80211 can get into somewhat confused state if
* the AP only disassociates us and leaves us in authenticated
* state. For now, force the state to be cleared to avoid
* confusing errors if we try to associate with the AP again.
*/
wpa_printf(MSG_DEBUG, "SME: Deauthenticate to clear driver "
"state");
sme: Check for prev_bssid from sme_event_disassoc wpa_s->bssid is already cleared by mark_disassoc() when we're getting the disassociation event for the case where wpa_supplicant requested disassociation. wpa_s->sme.prev_bssid holds the BSSID we need to check for, so use that instead. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-18 20:23:26 +02:00
wpa_drv_deauthenticate(wpa_s, wpa_s->sme.prev_bssid,
SME: Deauthenticate to clear state after disassociation events cfg80211/mac80211 can get into somewhat confused state if the AP only disassociates us and leaves us in authenticated state. For now, force the state to be cleared with deauthentication to avoid confusing errors if we try to associate with the AP again. This gets rid of 30 second delay (scan timeout) in cases where only a disassociation frame is received from the AP.
2009-12-02 16:26:28 +01:00
WLAN_REASON_DEAUTH_LEAVING);
}
}
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