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cfg80211: emulate connect with auth/assoc 

This adds code to cfg80211 so that drivers (mac80211 right
now) that don't implement connect but rather auth/assoc can
still be used with the nl80211 connect command. This will
also be necessary for the wext compat code.

Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2009-07-02 09:13:27 +02:00 committed by John W. Linville
parent b23aa676ab
commit 6829c878ec
7 changed files with 475 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/net/cfg80211.h
View File

@ -1209,6 +1209,9 @@ extern void wiphy_unregister(struct wiphy *wiphy);
*/
extern void wiphy_free(struct wiphy *wiphy);
/* internal struct */
struct cfg80211_conn;
/**
* struct wireless_dev - wireless per-netdev state
*
@ -1242,9 +1245,10 @@ struct wireless_dev {
u8 ssid_len;
enum {
CFG80211_SME_IDLE,
CFG80211_SME_CONNECTING, /* ->connect called */
CFG80211_SME_CONNECTING,
CFG80211_SME_CONNECTED,
} sme_state;
struct cfg80211_conn *conn;
#ifdef CONFIG_WIRELESS_EXT
/* wext data */

7
net/wireless/core.c
View File

@ -321,6 +321,7 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
}
INIT_WORK(&drv->rfkill_sync, cfg80211_rfkill_sync_work);
INIT_WORK(&drv->conn_work, cfg80211_conn_work);
/*
* Initialize wiphy parameters to IEEE 802.11 MIB default values.
@ -481,6 +482,8 @@ void wiphy_unregister(struct wiphy *wiphy)
/* unlock again before freeing */
mutex_unlock(&drv->mtx);
cancel_work_sync(&drv->conn_work);
cfg80211_debugfs_drv_del(drv);
/* If this device got a regulatory hint tell core its
@ -569,6 +572,10 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
break;
}
break;
case NETDEV_DOWN:
kfree(wdev->conn);
wdev->conn = NULL;
break;
case NETDEV_UP:
#ifdef CONFIG_WIRELESS_EXT
if (wdev->iftype != NL80211_IFTYPE_ADHOC)

8
net/wireless/core.h
View File

@ -62,6 +62,8 @@ struct cfg80211_registered_device {
struct genl_info *testmode_info;
#endif
struct work_struct conn_work;
#ifdef CONFIG_CFG80211_DEBUGFS
/* Debugfs entries */
struct wiphy_debugfsdentries {
@ -181,8 +183,14 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev,
int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
struct net_device *dev, u16 reason);
void cfg80211_conn_work(struct work_struct *work);
/* internal helpers */
int cfg80211_validate_key_settings(struct key_params *params, int key_idx,
const u8 *mac_addr);
void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, u8 *ie,
size_t ie_len, u16 reason, bool from_ap);
void cfg80211_sme_scan_done(struct net_device *dev);
void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
#endif /* __NET_WIRELESS_CORE_H */

79
net/wireless/mlme.c
View File

@ -16,58 +16,105 @@ void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len, gf
{
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
nl80211_send_rx_auth(rdev, dev, buf, len, gfp);
cfg80211_sme_rx_auth(dev, buf, len);
}
EXPORT_SYMBOL(cfg80211_send_rx_auth);
void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
{
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
u16 status_code;
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
u8 *ie = mgmt->u.assoc_resp.variable;
int ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
nl80211_send_rx_assoc(rdev, dev, buf, len, gfp);
cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs,
status_code, gfp);
}
EXPORT_SYMBOL(cfg80211_send_rx_assoc);
void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
{
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
nl80211_send_deauth(rdev, dev, buf, len, gfp);
if (wdev->sme_state == CFG80211_SME_CONNECTED) {
u16 reason_code;
bool from_ap;
reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0;
__cfg80211_disconnected(dev, gfp, NULL, 0,
reason_code, from_ap);
wdev->sme_state = CFG80211_SME_IDLE;
} else if (wdev->sme_state == CFG80211_SME_CONNECTING) {
cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
}
}
EXPORT_SYMBOL(cfg80211_send_deauth);
void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
{
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
nl80211_send_disassoc(rdev, dev, buf, len, gfp);
if (wdev->sme_state == CFG80211_SME_CONNECTED) {
u16 reason_code;
bool from_ap;
reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
from_ap = memcmp(mgmt->da, dev->dev_addr, ETH_ALEN) == 0;
__cfg80211_disconnected(dev, gfp, NULL, 0,
reason_code, from_ap);
wdev->sme_state = CFG80211_SME_IDLE;
}
}
EXPORT_SYMBOL(cfg80211_send_disassoc);
static void cfg80211_wext_disconnected(struct net_device *dev)
{
#ifdef CONFIG_WIRELESS_EXT
union iwreq_data wrqu;
memset(&wrqu, 0, sizeof(wrqu));
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
#endif
}
void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp)
{
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
nl80211_send_auth_timeout(rdev, dev, addr, gfp);
cfg80211_wext_disconnected(dev);
if (wdev->sme_state == CFG80211_SME_CONNECTING)
cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
wdev->sme_state = CFG80211_SME_IDLE;
}
EXPORT_SYMBOL(cfg80211_send_auth_timeout);
void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp)
{
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
nl80211_send_assoc_timeout(rdev, dev, addr, gfp);
cfg80211_wext_disconnected(dev);
if (wdev->sme_state == CFG80211_SME_CONNECTING)
cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
wdev->sme_state = CFG80211_SME_IDLE;
}
EXPORT_SYMBOL(cfg80211_send_assoc_timeout);

4
net/wireless/nl80211.c
View File

@ -351,12 +351,12 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
#undef CMD
if (dev->ops->connect) {
if (dev->ops->connect || dev->ops->auth) {
i++;
NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
}
if (dev->ops->disconnect) {
if (dev->ops->disconnect || dev->ops->deauth) {
i++;
NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
}

7
net/wireless/scan.c
View File

@ -30,6 +30,13 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted)
WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req);
/*
* This must be before sending the other events!
* Otherwise, wpa_supplicant gets completely confused with
* wext events.
*/
cfg80211_sme_scan_done(dev);
if (aborted)
nl80211_send_scan_aborted(wiphy_to_dev(request->wiphy), dev);
else

397
net/wireless/sme.c
View File

@ -12,6 +12,266 @@
#include <net/rtnetlink.h>
#include "nl80211.h"
struct cfg80211_conn {
struct cfg80211_connect_params params;
/* these are sub-states of the _CONNECTING sme_state */
enum {
CFG80211_CONN_IDLE,
CFG80211_CONN_SCANNING,
CFG80211_CONN_SCAN_AGAIN,
CFG80211_CONN_AUTHENTICATE_NEXT,
CFG80211_CONN_AUTHENTICATING,
CFG80211_CONN_ASSOCIATE_NEXT,
CFG80211_CONN_ASSOCIATING,
} state;
u8 bssid[ETH_ALEN];
u8 *ie;
size_t ie_len;
bool auto_auth;
};
static int cfg80211_conn_scan(struct wireless_dev *wdev)
{
struct cfg80211_registered_device *drv = wiphy_to_dev(wdev->wiphy);
struct cfg80211_scan_request *request;
int n_channels, err;
ASSERT_RTNL();
if (drv->scan_req)
return -EBUSY;
if (wdev->conn->params.channel) {
n_channels = 1;
} else {
enum ieee80211_band band;
n_channels = 0;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
if (!wdev->wiphy->bands[band])
continue;
n_channels += wdev->wiphy->bands[band]->n_channels;
}
}
request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) +
sizeof(request->channels[0]) * n_channels,
GFP_KERNEL);
if (!request)
return -ENOMEM;
request->channels = (void *)((char *)request + sizeof(*request));
if (wdev->conn->params.channel)
request->channels[0] = wdev->conn->params.channel;
else {
int i = 0, j;
enum ieee80211_band band;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
if (!wdev->wiphy->bands[band])
continue;
for (j = 0; j < wdev->wiphy->bands[band]->n_channels;
i++, j++)
request->channels[i] =
&wdev->wiphy->bands[band]->channels[j];
}
}
request->n_channels = n_channels;
request->ssids = (void *)(request->channels + n_channels);
request->n_ssids = 1;
memcpy(request->ssids[0].ssid, wdev->conn->params.ssid,
wdev->conn->params.ssid_len);
request->ssids[0].ssid_len = wdev->conn->params.ssid_len;
request->ifidx = wdev->netdev->ifindex;
request->wiphy = &drv->wiphy;
drv->scan_req = request;
err = drv->ops->scan(wdev->wiphy, wdev->netdev, request);
if (!err) {
wdev->conn->state = CFG80211_CONN_SCANNING;
nl80211_send_scan_start(drv, wdev->netdev);
} else {
drv->scan_req = NULL;
kfree(request);
}
return err;
}
static int cfg80211_conn_do_work(struct wireless_dev *wdev)
{
struct cfg80211_registered_device *drv = wiphy_to_dev(wdev->wiphy);
union {
struct cfg80211_auth_request auth_req;
struct cfg80211_assoc_request assoc_req;
} u;
memset(&u, 0, sizeof(u));
if (!wdev->conn)
return 0;
switch (wdev->conn->state) {
case CFG80211_CONN_SCAN_AGAIN:
return cfg80211_conn_scan(wdev);
case CFG80211_CONN_AUTHENTICATE_NEXT:
u.auth_req.chan = wdev->conn->params.channel;
u.auth_req.peer_addr = wdev->conn->params.bssid;
u.auth_req.ssid = wdev->conn->params.ssid;
u.auth_req.ssid_len = wdev->conn->params.ssid_len;
u.auth_req.auth_type = wdev->conn->params.auth_type;
u.auth_req.ie = NULL;
u.auth_req.ie_len = 0;
wdev->conn->state = CFG80211_CONN_AUTHENTICATING;
BUG_ON(!drv->ops->auth);
return drv->ops->auth(wdev->wiphy, wdev->netdev, &u.auth_req);
case CFG80211_CONN_ASSOCIATE_NEXT:
u.assoc_req.chan = wdev->conn->params.channel;
u.assoc_req.peer_addr = wdev->conn->params.bssid;
u.assoc_req.ssid = wdev->conn->params.ssid;
u.assoc_req.ssid_len = wdev->conn->params.ssid_len;
u.assoc_req.ie = wdev->conn->params.ie;
u.assoc_req.ie_len = wdev->conn->params.ie_len;
u.assoc_req.use_mfp = false;
memcpy(&u.assoc_req.crypto, &wdev->conn->params.crypto,
sizeof(u.assoc_req.crypto));
wdev->conn->state = CFG80211_CONN_ASSOCIATING;
BUG_ON(!drv->ops->assoc);
return drv->ops->assoc(wdev->wiphy, wdev->netdev,
&u.assoc_req);
default:
return 0;
}
}
void cfg80211_conn_work(struct work_struct *work)
{
struct cfg80211_registered_device *drv =
container_of(work, struct cfg80211_registered_device, conn_work);
struct wireless_dev *wdev;
rtnl_lock();
mutex_lock(&drv->devlist_mtx);
list_for_each_entry(wdev, &drv->netdev_list, list) {
if (!netif_running(wdev->netdev))
continue;
if (wdev->sme_state != CFG80211_SME_CONNECTING)
continue;
if (cfg80211_conn_do_work(wdev))
cfg80211_connect_result(wdev->netdev,
wdev->conn->params.bssid,
NULL, 0, NULL, 0,
WLAN_STATUS_UNSPECIFIED_FAILURE,
GFP_ATOMIC);
}
mutex_unlock(&drv->devlist_mtx);
rtnl_unlock();
}
static bool cfg80211_get_conn_bss(struct wireless_dev *wdev)
{
struct cfg80211_registered_device *drv = wiphy_to_dev(wdev->wiphy);
struct cfg80211_bss *bss;
u16 capa = WLAN_CAPABILITY_ESS;
if (wdev->conn->params.privacy)
capa |= WLAN_CAPABILITY_PRIVACY;
bss = cfg80211_get_bss(wdev->wiphy, NULL, wdev->conn->params.bssid,
wdev->conn->params.ssid,
wdev->conn->params.ssid_len,
WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY,
capa);
if (!bss)
return false;
memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN);
wdev->conn->params.bssid = wdev->conn->bssid;
wdev->conn->params.channel = bss->channel;
wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
schedule_work(&drv->conn_work);
cfg80211_put_bss(bss);
return true;
}
void cfg80211_sme_scan_done(struct net_device *dev)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *drv = wiphy_to_dev(wdev->wiphy);
if (wdev->sme_state != CFG80211_SME_CONNECTING)
return;
if (WARN_ON(!wdev->conn))
return;
if (wdev->conn->state != CFG80211_CONN_SCANNING &&
wdev->conn->state != CFG80211_CONN_SCAN_AGAIN)
return;
if (!cfg80211_get_conn_bss(wdev)) {
/* not found */
if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)
schedule_work(&drv->conn_work);
else
cfg80211_connect_result(dev, wdev->conn->params.bssid,
NULL, 0, NULL, 0,
WLAN_STATUS_UNSPECIFIED_FAILURE,
GFP_ATOMIC);
return;
}
}
void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
u16 status_code = le16_to_cpu(mgmt->u.auth.status_code);
/* should only RX auth frames when connecting */
if (wdev->sme_state != CFG80211_SME_CONNECTING)
return;
if (WARN_ON(!wdev->conn))
return;
if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
wdev->conn->auto_auth &&
wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) {
/* select automatically between only open, shared, leap */
switch (wdev->conn->params.auth_type) {
case NL80211_AUTHTYPE_OPEN_SYSTEM:
wdev->conn->params.auth_type =
NL80211_AUTHTYPE_SHARED_KEY;
break;
case NL80211_AUTHTYPE_SHARED_KEY:
wdev->conn->params.auth_type =
NL80211_AUTHTYPE_NETWORK_EAP;
break;
default:
/* huh? */
wdev->conn->params.auth_type =
NL80211_AUTHTYPE_OPEN_SYSTEM;
break;
}
wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
schedule_work(&rdev->conn_work);
} else if (status_code != WLAN_STATUS_SUCCESS)
wdev->sme_state = CFG80211_SME_IDLE;
else if (wdev->sme_state == CFG80211_SME_CONNECTING &&
wdev->conn->state == CFG80211_CONN_AUTHENTICATING) {
wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
schedule_work(&rdev->conn_work);
}
}
void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
const u8 *req_ie, size_t req_ie_len,
@ -27,7 +287,7 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
return;
if (WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING))
if (wdev->sme_state != CFG80211_SME_CONNECTING)
return;
if (wdev->current_bss) {
@ -53,6 +313,9 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
wdev->sme_state = CFG80211_SME_IDLE;
}
if (wdev->conn)
wdev->conn->state = CFG80211_CONN_IDLE;
nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev, bssid,
req_ie, req_ie_len, resp_ie, resp_ie_len,
status, gfp);
@ -72,7 +335,7 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
memset(&wrqu, 0, sizeof(wrqu));
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
if (bssid)
if (bssid && status == WLAN_STATUS_SUCCESS)
memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
#endif
@ -138,9 +401,8 @@ void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
}
EXPORT_SYMBOL(cfg80211_roamed);
static void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp,
u8 *ie, size_t ie_len, u16 reason,
bool from_ap)
void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp, u8 *ie,
size_t ie_len, u16 reason, bool from_ap)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
#ifdef CONFIG_WIRELESS_EXT
@ -161,6 +423,11 @@ static void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp,
wdev->current_bss = NULL;
wdev->sme_state = CFG80211_SME_IDLE;
if (wdev->conn) {
kfree(wdev->conn->ie);
wdev->conn->ie = NULL;
}
nl80211_send_disconnected(wiphy_to_dev(wdev->wiphy), dev,
reason, ie, ie_len, from_ap, gfp);
@ -174,7 +441,7 @@ static void __cfg80211_disconnected(struct net_device *dev, gfp_t gfp,
void cfg80211_disconnected(struct net_device *dev, u16 reason,
u8 *ie, size_t ie_len, gfp_t gfp)
{
__cfg80211_disconnected(dev, reason, ie, ie_len, true, gfp);
__cfg80211_disconnected(dev, gfp, ie, ie_len, reason, true);
}
EXPORT_SYMBOL(cfg80211_disconnected);
@ -189,7 +456,74 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev,
return -EALREADY;
if (!rdev->ops->connect) {
return -EOPNOTSUPP;
if (!rdev->ops->auth || !rdev->ops->assoc)
return -EOPNOTSUPP;
if (!wdev->conn) {
wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
if (!wdev->conn)
return -ENOMEM;
} else
memset(wdev->conn, 0, sizeof(*wdev->conn));
/*
* Copy all parameters, and treat explicitly IEs, BSSID, SSID.
*/
memcpy(&wdev->conn->params, connect, sizeof(*connect));
if (connect->bssid) {
wdev->conn->params.bssid = wdev->conn->bssid;
memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN);
}
if (connect->ie) {
wdev->conn->ie = kmemdup(connect->ie, connect->ie_len,
GFP_KERNEL);
wdev->conn->params.ie = wdev->conn->ie;
if (!wdev->conn->ie)
return -ENOMEM;
}
if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
wdev->conn->auto_auth = true;
/* start with open system ... should mostly work */
wdev->conn->params.auth_type =
NL80211_AUTHTYPE_OPEN_SYSTEM;
} else {
wdev->conn->auto_auth = false;
}
memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
wdev->ssid_len = connect->ssid_len;
wdev->conn->params.ssid = wdev->ssid;
wdev->conn->params.ssid_len = connect->ssid_len;
/* don't care about result -- but fill bssid & channel */
if (!wdev->conn->params.bssid || !wdev->conn->params.channel)
cfg80211_get_conn_bss(wdev);
wdev->sme_state = CFG80211_SME_CONNECTING;
/* we're good if we have both BSSID and channel */
if (wdev->conn->params.bssid && wdev->conn->params.channel) {
wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
err = cfg80211_conn_do_work(wdev);
} else {
/* otherwise we'll need to scan for the AP first */
err = cfg80211_conn_scan(wdev);
/*
* If we can't scan right now, then we need to scan again
* after the current scan finished, since the parameters
* changed (unless we find a good AP anyway).
*/
if (err == -EBUSY) {
err = 0;
wdev->conn->state = CFG80211_CONN_SCAN_AGAIN;
}
}
if (err)
wdev->sme_state = CFG80211_SME_IDLE;
return err;
} else {
wdev->sme_state = CFG80211_SME_CONNECTING;
err = rdev->ops->connect(&rdev->wiphy, dev, connect);
@ -197,28 +531,63 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev,
wdev->sme_state = CFG80211_SME_IDLE;
return err;
}
memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
wdev->ssid_len = connect->ssid_len;
return 0;
}
memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
wdev->ssid_len = connect->ssid_len;
return 0;
}
int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
struct net_device *dev, u16 reason)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
if (wdev->sme_state == CFG80211_SME_IDLE)
return -EINVAL;
if (!rdev->ops->disconnect) {
return -EOPNOTSUPP;
struct cfg80211_deauth_request deauth;
u8 bssid[ETH_ALEN];
/* internal bug. */
if (WARN_ON(!wdev->conn))
return -EINVAL;
if (wdev->sme_state == CFG80211_SME_CONNECTING &&
(wdev->conn->state == CFG80211_CONN_SCANNING ||
wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) {
wdev->sme_state = CFG80211_SME_IDLE;
return 0;
}
if (!rdev->ops->deauth)
return -EOPNOTSUPP;
memset(&deauth, 0, sizeof(deauth));
/* wdev->conn->params.bssid must be set if > SCANNING */
memcpy(bssid, wdev->conn->params.bssid, ETH_ALEN);
deauth.peer_addr = bssid;
deauth.reason_code = reason;
err = rdev->ops->deauth(&rdev->wiphy, dev, &deauth);
if (err)
return err;
} else {
err = rdev->ops->disconnect(&rdev->wiphy, dev, reason);
if (err)
return err;
}
__cfg80211_disconnected(dev, 0, NULL, 0, false, GFP_KERNEL);
if (wdev->sme_state == CFG80211_SME_CONNECTED)
__cfg80211_disconnected(dev, GFP_KERNEL, NULL, 0, 0, false);
else if (wdev->sme_state == CFG80211_SME_CONNECTING)
cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0,
WLAN_STATUS_UNSPECIFIED_FAILURE,
GFP_KERNEL);
return 0;
}