#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/nl80211.h>
+#include <linux/wireless.h>
#include <net/cfg80211.h>
+#include <net/iw_handler.h>
#include "core.h"
#include "nl80211.h"
-void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
+void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
u16 status = le16_to_cpu(mgmt->u.auth.status_code);
bool done = false;
+ wdev_lock(wdev);
+
for (i = 0; i < MAX_AUTH_BSSES; i++) {
if (wdev->authtry_bsses[i] &&
memcmp(wdev->authtry_bsses[i]->pub.bssid, bssid,
WARN_ON(!done);
- nl80211_send_rx_auth(rdev, dev, buf, len, gfp);
+ nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
cfg80211_sme_rx_auth(dev, buf, len);
+
+ wdev_unlock(wdev);
}
EXPORT_SYMBOL(cfg80211_send_rx_auth);
-void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
+void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len)
{
u16 status_code;
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
u8 *ie = mgmt->u.assoc_resp.variable;
int i, ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
- bool done;
+ struct cfg80211_internal_bss *bss = NULL;
+
+ wdev_lock(wdev);
status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
- nl80211_send_rx_assoc(rdev, dev, buf, len, gfp);
+ /*
+ * This is a bit of a hack, we don't notify userspace of
+ * a (re-)association reply if we tried to send a reassoc
+ * and got a reject -- we only try again with an assoc
+ * frame instead of reassoc.
+ */
+ if (status_code != WLAN_STATUS_SUCCESS && wdev->conn &&
+ cfg80211_sme_failed_reassoc(wdev))
+ goto out;
- cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs,
- status_code, gfp);
+ nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL);
if (status_code == WLAN_STATUS_SUCCESS) {
- for (i = 0; wdev->current_bss && i < MAX_AUTH_BSSES; i++) {
- if (wdev->auth_bsses[i] == wdev->current_bss) {
- cfg80211_unhold_bss(wdev->auth_bsses[i]);
- cfg80211_put_bss(&wdev->auth_bsses[i]->pub);
+ for (i = 0; i < MAX_AUTH_BSSES; i++) {
+ if (!wdev->auth_bsses[i])
+ continue;
+ if (memcmp(wdev->auth_bsses[i]->pub.bssid, mgmt->bssid,
+ ETH_ALEN) == 0) {
+ bss = wdev->auth_bsses[i];
wdev->auth_bsses[i] = NULL;
- done = true;
+ /* additional reference to drop hold */
+ cfg80211_ref_bss(bss);
break;
}
}
- WARN_ON(!done);
+ WARN_ON(!bss);
+ }
+
+ if (!wdev->conn && wdev->sme_state == CFG80211_SME_IDLE) {
+ /*
+ * This is for the userspace SME, the CONNECTING
+ * state will be changed to CONNECTED by
+ * __cfg80211_connect_result() below.
+ */
+ wdev->sme_state = CFG80211_SME_CONNECTING;
}
+
+ /* this consumes one bss reference (unless bss is NULL) */
+ __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs,
+ status_code,
+ status_code == WLAN_STATUS_SUCCESS,
+ bss ? &bss->pub : NULL);
+ /* drop hold now, and also reference acquired above */
+ if (bss) {
+ cfg80211_unhold_bss(bss);
+ cfg80211_put_bss(&bss->pub);
+ }
+
+ out:
+ wdev_unlock(wdev);
}
EXPORT_SYMBOL(cfg80211_send_rx_assoc);
-void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
+static void __cfg80211_send_deauth(struct net_device *dev,
+ const u8 *buf, size_t len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
int i;
bool done = false;
- nl80211_send_deauth(rdev, dev, buf, len, gfp);
+ ASSERT_WDEV_LOCK(wdev);
+
+ nl80211_send_deauth(rdev, dev, buf, len, GFP_KERNEL);
if (wdev->current_bss &&
memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
break;
}
}
-/*
- * mac80211 currently triggers this warning,
- * so disable for now (it's harmless, just
- * means that we got a spurious event)
WARN_ON(!done);
- */
-
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);
+ from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0;
+ __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
} else if (wdev->sme_state == CFG80211_SME_CONNECTING) {
- cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
- WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
+ __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
+ WLAN_STATUS_UNSPECIFIED_FAILURE,
+ false, NULL);
+ }
+}
+
+
+void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len,
+ void *cookie)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+ BUG_ON(cookie && wdev != cookie);
+
+ if (cookie) {
+ /* called within callback */
+ __cfg80211_send_deauth(dev, buf, len);
+ } else {
+ wdev_lock(wdev);
+ __cfg80211_send_deauth(dev, buf, len);
+ wdev_unlock(wdev);
}
}
EXPORT_SYMBOL(cfg80211_send_deauth);
-void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len, gfp_t gfp)
+static void __cfg80211_send_disassoc(struct net_device *dev,
+ const u8 *buf, size_t len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
bool from_ap;
bool done = false;
- nl80211_send_disassoc(rdev, dev, buf, len, gfp);
+ ASSERT_WDEV_LOCK(wdev);
+
+ nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL);
- if (!wdev->sme_state == CFG80211_SME_CONNECTED)
+ if (wdev->sme_state != CFG80211_SME_CONNECTED)
return;
if (wdev->current_bss &&
- memcmp(wdev->current_bss, bssid, ETH_ALEN) == 0) {
+ memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
for (i = 0; i < MAX_AUTH_BSSES; i++) {
if (wdev->authtry_bsses[i] || wdev->auth_bsses[i])
continue;
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);
+ from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0;
+ __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
+}
+
+void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len,
+ void *cookie)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+ BUG_ON(cookie && wdev != cookie);
+
+ if (cookie) {
+ /* called within callback */
+ __cfg80211_send_disassoc(dev, buf, len);
+ } else {
+ wdev_lock(wdev);
+ __cfg80211_send_disassoc(dev, buf, len);
+ wdev_unlock(wdev);
+ }
}
EXPORT_SYMBOL(cfg80211_send_disassoc);
-void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp)
+void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
int i;
bool done = false;
- nl80211_send_auth_timeout(rdev, dev, addr, gfp);
+ wdev_lock(wdev);
+
+ nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL);
if (wdev->sme_state == CFG80211_SME_CONNECTING)
- cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
- WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
+ __cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
+ WLAN_STATUS_UNSPECIFIED_FAILURE,
+ false, NULL);
for (i = 0; addr && i < MAX_AUTH_BSSES; i++) {
if (wdev->authtry_bsses[i] &&
}
WARN_ON(!done);
+
+ wdev_unlock(wdev);
}
EXPORT_SYMBOL(cfg80211_send_auth_timeout);
-void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr, gfp_t gfp)
+void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
int i;
bool done = false;
- nl80211_send_assoc_timeout(rdev, dev, addr, gfp);
+ wdev_lock(wdev);
+
+ nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL);
if (wdev->sme_state == CFG80211_SME_CONNECTING)
- cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
- WLAN_STATUS_UNSPECIFIED_FAILURE, gfp);
+ __cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
+ WLAN_STATUS_UNSPECIFIED_FAILURE,
+ false, NULL);
for (i = 0; addr && i < MAX_AUTH_BSSES; i++) {
if (wdev->auth_bsses[i] &&
}
WARN_ON(!done);
+
+ wdev_unlock(wdev);
}
EXPORT_SYMBOL(cfg80211_send_assoc_timeout);
EXPORT_SYMBOL(cfg80211_michael_mic_failure);
/* some MLME handling for userspace SME */
-int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
- struct net_device *dev, struct ieee80211_channel *chan,
- enum nl80211_auth_type auth_type, const u8 *bssid,
- const u8 *ssid, int ssid_len,
- const u8 *ie, int ie_len)
+int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
+ struct ieee80211_channel *chan,
+ enum nl80211_auth_type auth_type,
+ const u8 *bssid,
+ const u8 *ssid, int ssid_len,
+ const u8 *ie, int ie_len,
+ const u8 *key, int key_len, int key_idx)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_auth_request req;
struct cfg80211_internal_bss *bss;
int i, err, slot = -1, nfree = 0;
+ ASSERT_WDEV_LOCK(wdev);
+
+ if (auth_type == NL80211_AUTHTYPE_SHARED_KEY)
+ if (!key || !key_len || key_idx < 0 || key_idx > 4)
+ return -EINVAL;
+
+ if (wdev->current_bss &&
+ memcmp(bssid, wdev->current_bss->pub.bssid, ETH_ALEN) == 0)
+ return -EALREADY;
+
+ for (i = 0; i < MAX_AUTH_BSSES; i++) {
+ if (wdev->authtry_bsses[i] &&
+ memcmp(bssid, wdev->authtry_bsses[i]->pub.bssid,
+ ETH_ALEN) == 0)
+ return -EALREADY;
+ if (wdev->auth_bsses[i] &&
+ memcmp(bssid, wdev->auth_bsses[i]->pub.bssid,
+ ETH_ALEN) == 0)
+ return -EALREADY;
+ }
+
memset(&req, 0, sizeof(req));
req.ie = ie;
req.auth_type = auth_type;
req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
+ req.key = key;
+ req.key_len = key_len;
+ req.key_idx = key_idx;
if (!req.bss)
return -ENOENT;
bss = bss_from_pub(req.bss);
- for (i = 0; i < MAX_AUTH_BSSES; i++) {
- if (bss == wdev->auth_bsses[i]) {
- err = -EALREADY;
- goto out;
- }
- }
-
for (i = 0; i < MAX_AUTH_BSSES; i++) {
if (!wdev->auth_bsses[i] && !wdev->authtry_bsses[i]) {
slot = i;
return err;
}
-int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
- struct net_device *dev, struct ieee80211_channel *chan,
- const u8 *bssid, const u8 *ssid, int ssid_len,
- const u8 *ie, int ie_len, bool use_mfp,
- struct cfg80211_crypto_settings *crypt)
+int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
+ struct net_device *dev, struct ieee80211_channel *chan,
+ enum nl80211_auth_type auth_type, const u8 *bssid,
+ const u8 *ssid, int ssid_len,
+ const u8 *ie, int ie_len,
+ const u8 *key, int key_len, int key_idx)
+{
+ int err;
+
+ wdev_lock(dev->ieee80211_ptr);
+ err = __cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
+ ssid, ssid_len, ie, ie_len,
+ key, key_len, key_idx);
+ wdev_unlock(dev->ieee80211_ptr);
+
+ return err;
+}
+
+int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
+ struct ieee80211_channel *chan,
+ const u8 *bssid, const u8 *prev_bssid,
+ const u8 *ssid, int ssid_len,
+ const u8 *ie, int ie_len, bool use_mfp,
+ struct cfg80211_crypto_settings *crypt)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_assoc_request req;
struct cfg80211_internal_bss *bss;
int i, err, slot = -1;
+ ASSERT_WDEV_LOCK(wdev);
+
memset(&req, 0, sizeof(req));
if (wdev->current_bss)
req.ie_len = ie_len;
memcpy(&req.crypto, crypt, sizeof(req.crypto));
req.use_mfp = use_mfp;
+ req.prev_bssid = prev_bssid;
req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
if (!req.bss)
return err;
}
-int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
- struct net_device *dev, const u8 *bssid,
- const u8 *ie, int ie_len, u16 reason)
+int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
+ struct ieee80211_channel *chan,
+ const u8 *bssid, const u8 *prev_bssid,
+ const u8 *ssid, int ssid_len,
+ const u8 *ie, int ie_len, bool use_mfp,
+ struct cfg80211_crypto_settings *crypt)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ int err;
+
+ wdev_lock(wdev);
+ err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
+ ssid, ssid_len, ie, ie_len, use_mfp, crypt);
+ wdev_unlock(wdev);
+
+ return err;
+}
+
+int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
+ struct net_device *dev, const u8 *bssid,
+ const u8 *ie, int ie_len, u16 reason)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_deauth_request req;
int i;
+ ASSERT_WDEV_LOCK(wdev);
+
memset(&req, 0, sizeof(req));
req.reason_code = reason;
req.ie = ie;
if (!req.bss)
return -ENOTCONN;
- return rdev->ops->deauth(&rdev->wiphy, dev, &req);
+ return rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev);
}
-int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
- struct net_device *dev, const u8 *bssid,
- const u8 *ie, int ie_len, u16 reason)
+int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
+ struct net_device *dev, const u8 *bssid,
+ const u8 *ie, int ie_len, u16 reason)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ int err;
+
+ wdev_lock(wdev);
+ err = __cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason);
+ wdev_unlock(wdev);
+
+ return err;
+}
+
+static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
+ struct net_device *dev, const u8 *bssid,
+ const u8 *ie, int ie_len, u16 reason)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_disassoc_request req;
+ ASSERT_WDEV_LOCK(wdev);
+
+ if (wdev->sme_state != CFG80211_SME_CONNECTED)
+ return -ENOTCONN;
+
+ if (WARN_ON(!wdev->current_bss))
+ return -ENOTCONN;
+
memset(&req, 0, sizeof(req));
req.reason_code = reason;
req.ie = ie;
else
return -ENOTCONN;
- return rdev->ops->disassoc(&rdev->wiphy, dev, &req);
+ return rdev->ops->disassoc(&rdev->wiphy, dev, &req, wdev);
+}
+
+int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
+ struct net_device *dev, const u8 *bssid,
+ const u8 *ie, int ie_len, u16 reason)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ int err;
+
+ wdev_lock(wdev);
+ err = __cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason);
+ wdev_unlock(wdev);
+
+ return err;
}
void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
struct cfg80211_deauth_request req;
int i;
+ ASSERT_WDEV_LOCK(wdev);
+
if (!rdev->ops->deauth)
return;
if (wdev->current_bss) {
req.bss = &wdev->current_bss->pub;
- rdev->ops->deauth(&rdev->wiphy, dev, &req);
+ rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev);
if (wdev->current_bss) {
cfg80211_unhold_bss(wdev->current_bss);
cfg80211_put_bss(&wdev->current_bss->pub);
for (i = 0; i < MAX_AUTH_BSSES; i++) {
if (wdev->auth_bsses[i]) {
req.bss = &wdev->auth_bsses[i]->pub;
- rdev->ops->deauth(&rdev->wiphy, dev, &req);
+ rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev);
if (wdev->auth_bsses[i]) {
cfg80211_unhold_bss(wdev->auth_bsses[i]);
cfg80211_put_bss(&wdev->auth_bsses[i]->pub);
}
if (wdev->authtry_bsses[i]) {
req.bss = &wdev->authtry_bsses[i]->pub;
- rdev->ops->deauth(&rdev->wiphy, dev, &req);
+ rdev->ops->deauth(&rdev->wiphy, dev, &req, wdev);
if (wdev->authtry_bsses[i]) {
cfg80211_unhold_bss(wdev->authtry_bsses[i]);
cfg80211_put_bss(&wdev->authtry_bsses[i]->pub);
git.openpandora.org / pandora-kernel.git / blobdiff