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-rw-r--r--net/wireless/Kconfig44
-rw-r--r--net/wireless/Makefile10
-rw-r--r--net/wireless/core.c56
-rw-r--r--net/wireless/core.h15
-rw-r--r--net/wireless/debugfs.c15
-rw-r--r--net/wireless/debugfs.h3
-rw-r--r--net/wireless/ethtool.c45
-rw-r--r--net/wireless/ethtool.h6
-rw-r--r--net/wireless/ibss.c16
-rw-r--r--net/wireless/mlme.c105
-rw-r--r--net/wireless/nl80211.c406
-rw-r--r--net/wireless/reg.c19
-rw-r--r--net/wireless/scan.c58
-rw-r--r--net/wireless/sme.c18
-rw-r--r--net/wireless/util.c40
-rw-r--r--net/wireless/wext-compat.c97
-rw-r--r--net/wireless/wext-core.c (renamed from net/wireless/wext.c)1464
-rw-r--r--net/wireless/wext-priv.c248
-rw-r--r--net/wireless/wext-proc.c155
-rw-r--r--net/wireless/wext-spy.c231
20 files changed, 1736 insertions, 1315 deletions
diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig
index abf7ca3f9ff9..90e93a5701aa 100644
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -1,3 +1,21 @@
+config WIRELESS_EXT
+ bool
+
+config WEXT_CORE
+ def_bool y
+ depends on CFG80211_WEXT || WIRELESS_EXT
+
+config WEXT_PROC
+ def_bool y
+ depends on PROC_FS
+ depends on WEXT_CORE
+
+config WEXT_SPY
+ bool
+
+config WEXT_PRIV
+ bool
+
config CFG80211
tristate "cfg80211 - wireless configuration API"
depends on RFKILL || !RFKILL
@@ -67,14 +85,10 @@ config CFG80211_DEFAULT_PS
applications instead -- they need to register their network
latency requirement, see Documentation/power/pm_qos_interface.txt.
-config CFG80211_DEFAULT_PS_VALUE
- int
- default 1 if CFG80211_DEFAULT_PS
- default 0
-
config CFG80211_DEBUGFS
bool "cfg80211 DebugFS entries"
- depends on CFG80211 && DEBUG_FS
+ depends on CFG80211
+ depends on DEBUG_FS
---help---
You can enable this if you want to debugfs entries for cfg80211.
@@ -83,6 +97,7 @@ config CFG80211_DEBUGFS
config WIRELESS_OLD_REGULATORY
bool "Old wireless static regulatory definitions"
default n
+ depends on CFG80211
---help---
This option enables the old static regulatory information
and uses it within the new framework. This option is available
@@ -94,20 +109,19 @@ config WIRELESS_OLD_REGULATORY
Say N and if you say Y, please tell us why. The default is N.
-config WIRELESS_EXT
- bool "Wireless extensions"
+config CFG80211_WEXT
+ bool "cfg80211 wireless extensions compatibility"
+ depends on CFG80211
+ select WEXT_CORE
default y
- ---help---
- This option enables the legacy wireless extensions
- (wireless network interface configuration via ioctls.)
-
- Say Y unless you've upgraded all your userspace to use
- nl80211 instead of wireless extensions.
+ help
+ Enable this option if you need old userspace for wireless
+ extensions with cfg80211-based drivers.
config WIRELESS_EXT_SYSFS
bool "Wireless extensions sysfs files"
default y
- depends on WIRELESS_EXT && SYSFS
+ depends on WEXT_CORE && SYSFS
help
This option enables the deprecated wireless statistics
files in /sys/class/net/*/wireless/. The same information
diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index 3ecaa9179977..f07c8dc7aab2 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -1,13 +1,17 @@
-obj-$(CONFIG_WIRELESS_EXT) += wext.o
obj-$(CONFIG_CFG80211) += cfg80211.o
obj-$(CONFIG_LIB80211) += lib80211.o
obj-$(CONFIG_LIB80211_CRYPT_WEP) += lib80211_crypt_wep.o
obj-$(CONFIG_LIB80211_CRYPT_CCMP) += lib80211_crypt_ccmp.o
obj-$(CONFIG_LIB80211_CRYPT_TKIP) += lib80211_crypt_tkip.o
+obj-$(CONFIG_WEXT_CORE) += wext-core.o
+obj-$(CONFIG_WEXT_PROC) += wext-proc.o
+obj-$(CONFIG_WEXT_SPY) += wext-spy.o
+obj-$(CONFIG_WEXT_PRIV) += wext-priv.o
+
cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o
-cfg80211-y += mlme.o ibss.o sme.o chan.o
+cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o
cfg80211-$(CONFIG_CFG80211_DEBUGFS) += debugfs.o
-cfg80211-$(CONFIG_WIRELESS_EXT) += wext-compat.o wext-sme.o
+cfg80211-$(CONFIG_CFG80211_WEXT) += wext-compat.o wext-sme.o
ccflags-y += -D__CHECK_ENDIAN__
diff --git a/net/wireless/core.c b/net/wireless/core.c
index a595f712b5bf..c2a2c563d21a 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -22,6 +22,7 @@
#include "sysfs.h"
#include "debugfs.h"
#include "wext-compat.h"
+#include "ethtool.h"
/* name for sysfs, %d is appended */
#define PHY_NAME "phy"
@@ -44,6 +45,9 @@ DEFINE_MUTEX(cfg80211_mutex);
/* for debugfs */
static struct dentry *ieee80211_debugfs_dir;
+/* for the cleanup, scan and event works */
+struct workqueue_struct *cfg80211_wq;
+
/* requires cfg80211_mutex to be held! */
struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx)
{
@@ -230,7 +234,7 @@ int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev;
int err = 0;
- if (!rdev->wiphy.netnsok)
+ if (!(rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK))
return -EOPNOTSUPP;
list_for_each_entry(wdev, &rdev->netdev_list, list) {
@@ -359,11 +363,17 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
INIT_LIST_HEAD(&rdev->bss_list);
INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done);
+#ifdef CONFIG_CFG80211_WEXT
+ rdev->wiphy.wext = &cfg80211_wext_handler;
+#endif
+
device_initialize(&rdev->wiphy.dev);
rdev->wiphy.dev.class = &ieee80211_class;
rdev->wiphy.dev.platform_data = rdev;
- rdev->wiphy.ps_default = CONFIG_CFG80211_DEFAULT_PS_VALUE;
+#ifdef CONFIG_CFG80211_DEFAULT_PS
+ rdev->wiphy.flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
+#endif
wiphy_net_set(&rdev->wiphy, &init_net);
@@ -478,7 +488,7 @@ int wiphy_register(struct wiphy *wiphy)
if (IS_ERR(rdev->wiphy.debugfsdir))
rdev->wiphy.debugfsdir = NULL;
- if (wiphy->custom_regulatory) {
+ if (wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY) {
struct regulatory_request request;
request.wiphy_idx = get_wiphy_idx(wiphy);
@@ -542,7 +552,7 @@ void wiphy_unregister(struct wiphy *wiphy)
* First remove the hardware from everywhere, this makes
* it impossible to find from userspace.
*/
- cfg80211_debugfs_rdev_del(rdev);
+ debugfs_remove_recursive(rdev->wiphy.debugfsdir);
list_del(&rdev->list);
/*
@@ -565,7 +575,6 @@ void wiphy_unregister(struct wiphy *wiphy)
cfg80211_rdev_list_generation++;
device_del(&rdev->wiphy.dev);
- debugfs_remove(rdev->wiphy.debugfsdir);
mutex_unlock(&cfg80211_mutex);
@@ -626,6 +635,10 @@ static void wdev_cleanup_work(struct work_struct *work)
dev_put(wdev->netdev);
}
+static struct device_type wiphy_type = {
+ .name = "wlan",
+};
+
static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
unsigned long state,
void *ndev)
@@ -642,6 +655,9 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
WARN_ON(wdev->iftype == NL80211_IFTYPE_UNSPECIFIED);
switch (state) {
+ case NETDEV_POST_INIT:
+ SET_NETDEV_DEVTYPE(dev, &wiphy_type);
+ break;
case NETDEV_REGISTER:
/*
* NB: cannot take rdev->mtx here because this may be
@@ -666,13 +682,14 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
wdev->netdev = dev;
wdev->sme_state = CFG80211_SME_IDLE;
mutex_unlock(&rdev->devlist_mtx);
-#ifdef CONFIG_WIRELESS_EXT
- if (!dev->wireless_handlers)
- dev->wireless_handlers = &cfg80211_wext_handler;
+#ifdef CONFIG_CFG80211_WEXT
wdev->wext.default_key = -1;
wdev->wext.default_mgmt_key = -1;
wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
- wdev->wext.ps = wdev->wiphy->ps_default;
+ if (wdev->wiphy->flags & WIPHY_FLAG_PS_ON_BY_DEFAULT)
+ wdev->wext.ps = true;
+ else
+ wdev->wext.ps = false;
wdev->wext.ps_timeout = 100;
if (rdev->ops->set_power_mgmt)
if (rdev->ops->set_power_mgmt(wdev->wiphy, dev,
@@ -682,6 +699,12 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
wdev->wext.ps = false;
}
#endif
+ if (!dev->ethtool_ops)
+ dev->ethtool_ops = &cfg80211_ethtool_ops;
+
+ if ((wdev->iftype == NL80211_IFTYPE_STATION ||
+ wdev->iftype == NL80211_IFTYPE_ADHOC) && !wdev->use_4addr)
+ dev->priv_flags |= IFF_DONT_BRIDGE;
break;
case NETDEV_GOING_DOWN:
switch (wdev->iftype) {
@@ -690,7 +713,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
break;
case NL80211_IFTYPE_STATION:
wdev_lock(wdev);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
kfree(wdev->wext.ie);
wdev->wext.ie = NULL;
wdev->wext.ie_len = 0;
@@ -707,7 +730,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
break;
case NETDEV_DOWN:
dev_hold(dev);
- schedule_work(&wdev->cleanup_work);
+ queue_work(cfg80211_wq, &wdev->cleanup_work);
break;
case NETDEV_UP:
/*
@@ -722,7 +745,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
mutex_unlock(&rdev->devlist_mtx);
dev_put(dev);
}
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
cfg80211_lock_rdev(rdev);
mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
@@ -760,7 +783,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
sysfs_remove_link(&dev->dev.kobj, "phy80211");
list_del_init(&wdev->list);
rdev->devlist_generation++;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
kfree(wdev->wext.keys);
#endif
}
@@ -825,8 +848,14 @@ static int __init cfg80211_init(void)
if (err)
goto out_fail_reg;
+ cfg80211_wq = create_singlethread_workqueue("cfg80211");
+ if (!cfg80211_wq)
+ goto out_fail_wq;
+
return 0;
+out_fail_wq:
+ regulatory_exit();
out_fail_reg:
debugfs_remove(ieee80211_debugfs_dir);
out_fail_nl80211:
@@ -848,5 +877,6 @@ static void cfg80211_exit(void)
wiphy_sysfs_exit();
regulatory_exit();
unregister_pernet_device(&cfg80211_pernet_ops);
+ destroy_workqueue(cfg80211_wq);
}
module_exit(cfg80211_exit);
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 68b321997d4c..4ef3efc94106 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -72,17 +72,6 @@ struct cfg80211_registered_device {
/* current channel */
struct ieee80211_channel *channel;
-#ifdef CONFIG_CFG80211_DEBUGFS
- /* Debugfs entries */
- struct wiphy_debugfsdentries {
- struct dentry *rts_threshold;
- struct dentry *fragmentation_threshold;
- struct dentry *short_retry_limit;
- struct dentry *long_retry_limit;
- struct dentry *ht40allow_map;
- } debugfs;
-#endif
-
/* must be last because of the way we do wiphy_priv(),
* and it should at least be aligned to NETDEV_ALIGN */
struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
@@ -102,6 +91,8 @@ bool wiphy_idx_valid(int wiphy_idx)
return (wiphy_idx >= 0);
}
+
+extern struct workqueue_struct *cfg80211_wq;
extern struct mutex cfg80211_mutex;
extern struct list_head cfg80211_rdev_list;
extern int cfg80211_rdev_list_generation;
@@ -284,6 +275,8 @@ int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
struct cfg80211_ibss_params *params,
struct cfg80211_cached_keys *connkeys);
void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
+int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
+ struct net_device *dev, bool nowext);
int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
struct net_device *dev, bool nowext);
void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid);
diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c
index 13d93d84f902..2e4895615037 100644
--- a/net/wireless/debugfs.c
+++ b/net/wireless/debugfs.c
@@ -104,11 +104,7 @@ static const struct file_operations ht40allow_map_ops = {
};
#define DEBUGFS_ADD(name) \
- rdev->debugfs.name = debugfs_create_file(#name, S_IRUGO, phyd, \
- &rdev->wiphy, &name## _ops);
-#define DEBUGFS_DEL(name) \
- debugfs_remove(rdev->debugfs.name); \
- rdev->debugfs.name = NULL;
+ debugfs_create_file(#name, S_IRUGO, phyd, &rdev->wiphy, &name## _ops);
void cfg80211_debugfs_rdev_add(struct cfg80211_registered_device *rdev)
{
@@ -120,12 +116,3 @@ void cfg80211_debugfs_rdev_add(struct cfg80211_registered_device *rdev)
DEBUGFS_ADD(long_retry_limit);
DEBUGFS_ADD(ht40allow_map);
}
-
-void cfg80211_debugfs_rdev_del(struct cfg80211_registered_device *rdev)
-{
- DEBUGFS_DEL(rts_threshold);
- DEBUGFS_DEL(fragmentation_threshold);
- DEBUGFS_DEL(short_retry_limit);
- DEBUGFS_DEL(long_retry_limit);
- DEBUGFS_DEL(ht40allow_map);
-}
diff --git a/net/wireless/debugfs.h b/net/wireless/debugfs.h
index 6419b6d6ce3e..74fdd3811427 100644
--- a/net/wireless/debugfs.h
+++ b/net/wireless/debugfs.h
@@ -3,12 +3,9 @@
#ifdef CONFIG_CFG80211_DEBUGFS
void cfg80211_debugfs_rdev_add(struct cfg80211_registered_device *rdev);
-void cfg80211_debugfs_rdev_del(struct cfg80211_registered_device *rdev);
#else
static inline
void cfg80211_debugfs_rdev_add(struct cfg80211_registered_device *rdev) {}
-static inline
-void cfg80211_debugfs_rdev_del(struct cfg80211_registered_device *rdev) {}
#endif
#endif /* __CFG80211_DEBUGFS_H */
diff --git a/net/wireless/ethtool.c b/net/wireless/ethtool.c
new file mode 100644
index 000000000000..ca4c825be93d
--- /dev/null
+++ b/net/wireless/ethtool.c
@@ -0,0 +1,45 @@
+#include <linux/utsname.h>
+#include <net/cfg80211.h>
+#include "ethtool.h"
+
+static void cfg80211_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+ strlcpy(info->driver, wiphy_dev(wdev->wiphy)->driver->name,
+ sizeof(info->driver));
+
+ strlcpy(info->version, init_utsname()->release, sizeof(info->version));
+
+ if (wdev->wiphy->fw_version[0])
+ strncpy(info->fw_version, wdev->wiphy->fw_version,
+ sizeof(info->fw_version));
+ else
+ strncpy(info->fw_version, "N/A", sizeof(info->fw_version));
+
+ strlcpy(info->bus_info, dev_name(wiphy_dev(wdev->wiphy)),
+ sizeof(info->bus_info));
+}
+
+static int cfg80211_get_regs_len(struct net_device *dev)
+{
+ /* For now, return 0... */
+ return 0;
+}
+
+static void cfg80211_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+ void *data)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+ regs->version = wdev->wiphy->hw_version;
+ regs->len = 0;
+}
+
+const struct ethtool_ops cfg80211_ethtool_ops = {
+ .get_drvinfo = cfg80211_get_drvinfo,
+ .get_regs_len = cfg80211_get_regs_len,
+ .get_regs = cfg80211_get_regs,
+ .get_link = ethtool_op_get_link,
+};
diff --git a/net/wireless/ethtool.h b/net/wireless/ethtool.h
new file mode 100644
index 000000000000..695ecad20bd6
--- /dev/null
+++ b/net/wireless/ethtool.h
@@ -0,0 +1,6 @@
+#ifndef __CFG80211_ETHTOOL__
+#define __CFG80211_ETHTOOL__
+
+extern const struct ethtool_ops cfg80211_ethtool_ops;
+
+#endif /* __CFG80211_ETHTOOL__ */
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index c88338911979..6ef5a491fb4b 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -15,7 +15,7 @@ void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_bss *bss;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
#endif
@@ -44,7 +44,7 @@ void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid)
nl80211_send_ibss_bssid(wiphy_to_dev(wdev->wiphy), dev, bssid,
GFP_KERNEL);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
memset(&wrqu, 0, sizeof(wrqu));
memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
@@ -70,7 +70,7 @@ void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp)
spin_lock_irqsave(&wdev->event_lock, flags);
list_add_tail(&ev->list, &wdev->event_list);
spin_unlock_irqrestore(&wdev->event_lock, flags);
- schedule_work(&rdev->event_work);
+ queue_work(cfg80211_wq, &rdev->event_work);
}
EXPORT_SYMBOL(cfg80211_ibss_joined);
@@ -96,7 +96,7 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
kfree(wdev->connect_keys);
wdev->connect_keys = connkeys;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
wdev->wext.ibss.channel = params->channel;
#endif
err = rdev->ops->join_ibss(&rdev->wiphy, dev, params);
@@ -154,7 +154,7 @@ static void __cfg80211_clear_ibss(struct net_device *dev, bool nowext)
wdev->current_bss = NULL;
wdev->ssid_len = 0;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
if (!nowext)
wdev->wext.ibss.ssid_len = 0;
#endif
@@ -169,8 +169,8 @@ void cfg80211_clear_ibss(struct net_device *dev, bool nowext)
wdev_unlock(wdev);
}
-static int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
- struct net_device *dev, bool nowext)
+int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
+ struct net_device *dev, bool nowext)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
@@ -203,7 +203,7 @@ int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
return err;
}
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev)
{
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 0a6b7a0eca6b..1001db4912f7 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -62,7 +62,6 @@ void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len)
u8 *ie = mgmt->u.assoc_resp.variable;
int i, ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
struct cfg80211_internal_bss *bss = NULL;
- bool need_connect_result = true;
wdev_lock(wdev);
@@ -97,7 +96,6 @@ void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len)
WARN_ON(!bss);
} else if (wdev->conn) {
cfg80211_sme_failed_assoc(wdev);
- need_connect_result = false;
/*
* do not call connect_result() now because the
* sme will schedule work that does it later.
@@ -130,7 +128,7 @@ void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len)
}
EXPORT_SYMBOL(cfg80211_send_rx_assoc);
-static void __cfg80211_send_deauth(struct net_device *dev,
+void __cfg80211_send_deauth(struct net_device *dev,
const u8 *buf, size_t len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
@@ -139,7 +137,6 @@ static void __cfg80211_send_deauth(struct net_device *dev,
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
const u8 *bssid = mgmt->bssid;
int i;
- bool done = false;
ASSERT_WDEV_LOCK(wdev);
@@ -147,7 +144,6 @@ static void __cfg80211_send_deauth(struct net_device *dev,
if (wdev->current_bss &&
memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
- done = true;
cfg80211_unhold_bss(wdev->current_bss);
cfg80211_put_bss(&wdev->current_bss->pub);
wdev->current_bss = NULL;
@@ -157,7 +153,6 @@ static void __cfg80211_send_deauth(struct net_device *dev,
cfg80211_unhold_bss(wdev->auth_bsses[i]);
cfg80211_put_bss(&wdev->auth_bsses[i]->pub);
wdev->auth_bsses[i] = NULL;
- done = true;
break;
}
if (wdev->authtry_bsses[i] &&
@@ -165,13 +160,10 @@ static void __cfg80211_send_deauth(struct net_device *dev,
cfg80211_unhold_bss(wdev->authtry_bsses[i]);
cfg80211_put_bss(&wdev->authtry_bsses[i]->pub);
wdev->authtry_bsses[i] = NULL;
- done = true;
break;
}
}
- WARN_ON(!done);
-
if (wdev->sme_state == CFG80211_SME_CONNECTED) {
u16 reason_code;
bool from_ap;
@@ -186,27 +178,19 @@ static void __cfg80211_send_deauth(struct net_device *dev,
false, NULL);
}
}
+EXPORT_SYMBOL(__cfg80211_send_deauth);
-
-void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len,
- void *cookie)
+void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len)
{
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);
- }
+ wdev_lock(wdev);
+ __cfg80211_send_deauth(dev, buf, len);
+ wdev_unlock(wdev);
}
EXPORT_SYMBOL(cfg80211_send_deauth);
-static void __cfg80211_send_disassoc(struct net_device *dev,
+void __cfg80211_send_disassoc(struct net_device *dev,
const u8 *buf, size_t len)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
@@ -247,40 +231,24 @@ static void __cfg80211_send_disassoc(struct net_device *dev,
from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0;
__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
}
+EXPORT_SYMBOL(__cfg80211_send_disassoc);
-void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len,
- void *cookie)
+void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len)
{
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);
- }
+ 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)
+static void __cfg80211_auth_remove(struct wireless_dev *wdev, const u8 *addr)
{
- struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct wiphy *wiphy = wdev->wiphy;
- struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
int i;
bool done = false;
- 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,
- false, NULL);
+ ASSERT_WDEV_LOCK(wdev);
for (i = 0; addr && i < MAX_AUTH_BSSES; i++) {
if (wdev->authtry_bsses[i] &&
@@ -295,6 +263,29 @@ void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
}
WARN_ON(!done);
+}
+
+void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr)
+{
+ __cfg80211_auth_remove(dev->ieee80211_ptr, addr);
+}
+EXPORT_SYMBOL(__cfg80211_auth_canceled);
+
+void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct wiphy *wiphy = wdev->wiphy;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
+ 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,
+ false, NULL);
+
+ __cfg80211_auth_remove(wdev, addr);
wdev_unlock(wdev);
}
@@ -340,7 +331,7 @@ void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
{
struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
char *buf = kmalloc(128, gfp);
@@ -469,12 +460,23 @@ int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
struct cfg80211_assoc_request req;
struct cfg80211_internal_bss *bss;
int i, err, slot = -1;
+ bool was_connected = false;
ASSERT_WDEV_LOCK(wdev);
memset(&req, 0, sizeof(req));
- if (wdev->current_bss)
+ if (wdev->current_bss && prev_bssid &&
+ memcmp(wdev->current_bss->pub.bssid, prev_bssid, ETH_ALEN) == 0) {
+ /*
+ * Trying to reassociate: Allow this to proceed and let the old
+ * association to be dropped when the new one is completed.
+ */
+ if (wdev->sme_state == CFG80211_SME_CONNECTED) {
+ was_connected = true;
+ wdev->sme_state = CFG80211_SME_CONNECTING;
+ }
+ } else if (wdev->current_bss)
return -EALREADY;
req.ie = ie;
@@ -484,8 +486,11 @@ int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
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)
+ if (!req.bss) {
+ if (was_connected)
+ wdev->sme_state = CFG80211_SME_CONNECTED;
return -ENOENT;
+ }
bss = bss_from_pub(req.bss);
@@ -503,6 +508,8 @@ int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
err = rdev->ops->assoc(&rdev->wiphy, dev, &req);
out:
+ if (err && was_connected)
+ wdev->sme_state = CFG80211_SME_CONNECTED;
/* still a reference in wdev->auth_bsses[slot] */
cfg80211_put_bss(req.bss);
return err;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index ca3c92a0a14f..a6028433e3a0 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -138,6 +138,9 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
[NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
[NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
[NL80211_ATTR_PID] = { .type = NLA_U32 },
+ [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
+ [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
+ .len = WLAN_PMKID_LEN },
};
/* policy for the attributes */
@@ -151,6 +154,26 @@ nl80211_key_policy[NL80211_KEY_MAX + 1] __read_mostly = {
[NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
};
+/* ifidx get helper */
+static int nl80211_get_ifidx(struct netlink_callback *cb)
+{
+ int res;
+
+ res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
+ nl80211_fam.attrbuf, nl80211_fam.maxattr,
+ nl80211_policy);
+ if (res)
+ return res;
+
+ if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
+ return -EINVAL;
+
+ res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
+ if (!res)
+ return -EINVAL;
+ return res;
+}
+
/* IE validation */
static bool is_valid_ie_attr(const struct nlattr *attr)
{
@@ -429,6 +452,9 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
sizeof(u32) * dev->wiphy.n_cipher_suites,
dev->wiphy.cipher_suites);
+ NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
+ dev->wiphy.max_num_pmkids);
+
nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
if (!nl_modes)
goto nla_put_failure;
@@ -540,7 +566,10 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
CMD(deauth, DEAUTHENTICATE);
CMD(disassoc, DISASSOCIATE);
CMD(join_ibss, JOIN_IBSS);
- if (dev->wiphy.netnsok) {
+ CMD(set_pmksa, SET_PMKSA);
+ CMD(del_pmksa, DEL_PMKSA);
+ CMD(flush_pmksa, FLUSH_PMKSA);
+ if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
i++;
NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
}
@@ -947,6 +976,32 @@ static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
return 0;
}
+static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, u8 use_4addr,
+ enum nl80211_iftype iftype)
+{
+ if (!use_4addr) {
+ if (netdev && netdev->br_port)
+ return -EBUSY;
+ return 0;
+ }
+
+ switch (iftype) {
+ case NL80211_IFTYPE_AP_VLAN:
+ if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
+ return 0;
+ break;
+ case NL80211_IFTYPE_STATION:
+ if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
+ return 0;
+ break;
+ default:
+ break;
+ }
+
+ return -EOPNOTSUPP;
+}
+
static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev;
@@ -987,6 +1042,16 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
change = true;
}
+ if (info->attrs[NL80211_ATTR_4ADDR]) {
+ params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
+ change = true;
+ err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
+ if (err)
+ goto unlock;
+ } else {
+ params.use_4addr = -1;
+ }
+
if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
if (ntype != NL80211_IFTYPE_MONITOR) {
err = -EINVAL;
@@ -1006,6 +1071,9 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
else
err = 0;
+ if (!err && params.use_4addr != -1)
+ dev->ieee80211_ptr->use_4addr = params.use_4addr;
+
unlock:
dev_put(dev);
cfg80211_unlock_rdev(rdev);
@@ -1053,6 +1121,13 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
}
+ if (info->attrs[NL80211_ATTR_4ADDR]) {
+ params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
+ err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
+ if (err)
+ goto unlock;
+ }
+
err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
&flags);
@@ -1264,7 +1339,7 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
if (!err)
err = func(&rdev->wiphy, dev, key.idx);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
if (!err) {
if (func == rdev->ops->set_default_key)
dev->ieee80211_ptr->wext.default_key = key.idx;
@@ -1365,7 +1440,7 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
if (!err)
err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
if (!err) {
if (key.idx == dev->ieee80211_ptr->wext.default_key)
dev->ieee80211_ptr->wext.default_key = -1;
@@ -1682,20 +1757,10 @@ static int nl80211_dump_station(struct sk_buff *skb,
int sta_idx = cb->args[1];
int err;
- if (!ifidx) {
- err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
- nl80211_fam.attrbuf, nl80211_fam.maxattr,
- nl80211_policy);
- if (err)
- return err;
-
- if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
- return -EINVAL;
-
- ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
- if (!ifidx)
- return -EINVAL;
- }
+ if (!ifidx)
+ ifidx = nl80211_get_ifidx(cb);
+ if (ifidx < 0)
+ return ifidx;
rtnl_lock();
@@ -1800,7 +1865,7 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
}
/*
- * Get vlan interface making sure it is on the right wiphy.
+ * Get vlan interface making sure it is running and on the right wiphy.
*/
static int get_vlan(struct genl_info *info,
struct cfg80211_registered_device *rdev,
@@ -1818,6 +1883,8 @@ static int get_vlan(struct genl_info *info,
return -EINVAL;
if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
return -EINVAL;
+ if (!netif_running(*vlan))
+ return -ENETDOWN;
}
return 0;
}
@@ -2105,9 +2172,9 @@ static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
pinfo->frame_qlen);
- if (pinfo->filled & MPATH_INFO_DSN)
- NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
- pinfo->dsn);
+ if (pinfo->filled & MPATH_INFO_SN)
+ NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
+ pinfo->sn);
if (pinfo->filled & MPATH_INFO_METRIC)
NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
pinfo->metric);
@@ -2145,20 +2212,10 @@ static int nl80211_dump_mpath(struct sk_buff *skb,
int path_idx = cb->args[1];
int err;
- if (!ifidx) {
- err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
- nl80211_fam.attrbuf, nl80211_fam.maxattr,
- nl80211_policy);
- if (err)
- return err;
-
- if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
- return -EINVAL;
-
- ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
- if (!ifidx)
- return -EINVAL;
- }
+ if (!ifidx)
+ ifidx = nl80211_get_ifidx(cb);
+ if (ifidx < 0)
+ return ifidx;
rtnl_lock();
@@ -2605,6 +2662,8 @@ static int nl80211_get_mesh_params(struct sk_buff *skb,
cur_params.dot11MeshHWMPpreqMinInterval);
NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
cur_params.dot11MeshHWMPnetDiameterTraversalTime);
+ NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
+ cur_params.dot11MeshHWMPRootMode);
nla_nest_end(msg, pinfoattr);
genlmsg_end(msg, hdr);
err = genlmsg_reply(msg, info);
@@ -2715,6 +2774,10 @@ static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
dot11MeshHWMPnetDiameterTraversalTime,
mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
nla_get_u16);
+ FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
+ dot11MeshHWMPRootMode, mask,
+ NL80211_MESHCONF_HWMP_ROOTMODE,
+ nla_get_u8);
/* Apply changes */
err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
@@ -2988,7 +3051,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
goto out;
}
- request->n_channels = n_channels;
if (n_ssids)
request->ssids = (void *)&request->channels[n_channels];
request->n_ssids = n_ssids;
@@ -2999,32 +3061,53 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
request->ie = (void *)(request->channels + n_channels);
}
+ i = 0;
if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
/* user specified, bail out if channel not found */
- request->n_channels = n_channels;
- i = 0;
nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
- request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr));
- if (!request->channels[i]) {
+ struct ieee80211_channel *chan;
+
+ chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
+
+ if (!chan) {
err = -EINVAL;
goto out_free;
}
+
+ /* ignore disabled channels */
+ if (chan->flags & IEEE80211_CHAN_DISABLED)
+ continue;
+
+ request->channels[i] = chan;
i++;
}
} else {
/* all channels */
- i = 0;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
int j;
if (!wiphy->bands[band])
continue;
for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
- request->channels[i] = &wiphy->bands[band]->channels[j];
+ struct ieee80211_channel *chan;
+
+ chan = &wiphy->bands[band]->channels[j];
+
+ if (chan->flags & IEEE80211_CHAN_DISABLED)
+ continue;
+
+ request->channels[i] = chan;
i++;
}
}
}
+ if (!i) {
+ err = -EINVAL;
+ goto out_free;
+ }
+
+ request->n_channels = i;
+
i = 0;
if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
@@ -3105,6 +3188,8 @@ static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
+ NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
+ jiffies_to_msecs(jiffies - intbss->ts));
switch (rdev->wiphy.signal_type) {
case CFG80211_SIGNAL_TYPE_MBM:
@@ -3159,21 +3244,11 @@ static int nl80211_dump_scan(struct sk_buff *skb,
int start = cb->args[1], idx = 0;
int err;
- if (!ifidx) {
- err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
- nl80211_fam.attrbuf, nl80211_fam.maxattr,
- nl80211_policy);
- if (err)
- return err;
-
- if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
- return -EINVAL;
-
- ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
- if (!ifidx)
- return -EINVAL;
- cb->args[0] = ifidx;
- }
+ if (!ifidx)
+ ifidx = nl80211_get_ifidx(cb);
+ if (ifidx < 0)
+ return ifidx;
+ cb->args[0] = ifidx;
dev = dev_get_by_index(sock_net(skb->sk), ifidx);
if (!dev)
@@ -3216,6 +3291,106 @@ static int nl80211_dump_scan(struct sk_buff *skb,
return err;
}
+static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
+ int flags, struct net_device *dev,
+ struct survey_info *survey)
+{
+ void *hdr;
+ struct nlattr *infoattr;
+
+ /* Survey without a channel doesn't make sense */
+ if (!survey->channel)
+ return -EINVAL;
+
+ hdr = nl80211hdr_put(msg, pid, seq, flags,
+ NL80211_CMD_NEW_SURVEY_RESULTS);
+ if (!hdr)
+ return -ENOMEM;
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
+
+ infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
+ if (!infoattr)
+ goto nla_put_failure;
+
+ NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
+ survey->channel->center_freq);
+ if (survey->filled & SURVEY_INFO_NOISE_DBM)
+ NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
+ survey->noise);
+
+ nla_nest_end(msg, infoattr);
+
+ return genlmsg_end(msg, hdr);
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int nl80211_dump_survey(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ struct survey_info survey;
+ struct cfg80211_registered_device *dev;
+ struct net_device *netdev;
+ int ifidx = cb->args[0];
+ int survey_idx = cb->args[1];
+ int res;
+
+ if (!ifidx)
+ ifidx = nl80211_get_ifidx(cb);
+ if (ifidx < 0)
+ return ifidx;
+ cb->args[0] = ifidx;
+
+ rtnl_lock();
+
+ netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
+ if (!netdev) {
+ res = -ENODEV;
+ goto out_rtnl;
+ }
+
+ dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
+ if (IS_ERR(dev)) {
+ res = PTR_ERR(dev);
+ goto out_rtnl;
+ }
+
+ if (!dev->ops->dump_survey) {
+ res = -EOPNOTSUPP;
+ goto out_err;
+ }
+
+ while (1) {
+ res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
+ &survey);
+ if (res == -ENOENT)
+ break;
+ if (res)
+ goto out_err;
+
+ if (nl80211_send_survey(skb,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI,
+ netdev,
+ &survey) < 0)
+ goto out;
+ survey_idx++;
+ }
+
+ out:
+ cb->args[1] = survey_idx;
+ res = skb->len;
+ out_err:
+ cfg80211_unlock_rdev(dev);
+ out_rtnl:
+ rtnl_unlock();
+
+ return res;
+}
+
static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
{
return auth_type <= NL80211_AUTHTYPE_MAX;
@@ -4054,6 +4229,99 @@ static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
return err;
}
+static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev;
+ int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_pmksa *pmksa) = NULL;
+ int err;
+ struct net_device *dev;
+ struct cfg80211_pmksa pmksa;
+
+ memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
+
+ if (!info->attrs[NL80211_ATTR_MAC])
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_PMKID])
+ return -EINVAL;
+
+ rtnl_lock();
+
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
+ if (err)
+ goto out_rtnl;
+
+ pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
+ pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ switch (info->genlhdr->cmd) {
+ case NL80211_CMD_SET_PMKSA:
+ rdev_ops = rdev->ops->set_pmksa;
+ break;
+ case NL80211_CMD_DEL_PMKSA:
+ rdev_ops = rdev->ops->del_pmksa;
+ break;
+ default:
+ WARN_ON(1);
+ break;
+ }
+
+ if (!rdev_ops) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ err = rdev_ops(&rdev->wiphy, dev, &pmksa);
+
+ out:
+ cfg80211_unlock_rdev(rdev);
+ dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
+ return err;
+}
+
+static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev;
+ int err;
+ struct net_device *dev;
+
+ rtnl_lock();
+
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
+ if (err)
+ goto out_rtnl;
+
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (!rdev->ops->flush_pmksa) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ err = rdev->ops->flush_pmksa(&rdev->wiphy, dev);
+
+ out:
+ cfg80211_unlock_rdev(rdev);
+ dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
+ return err;
+
+}
+
static struct genl_ops nl80211_ops[] = {
{
.cmd = NL80211_CMD_GET_WIPHY,
@@ -4293,6 +4561,30 @@ static struct genl_ops nl80211_ops[] = {
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
+ {
+ .cmd = NL80211_CMD_GET_SURVEY,
+ .policy = nl80211_policy,
+ .dumpit = nl80211_dump_survey,
+ },
+ {
+ .cmd = NL80211_CMD_SET_PMKSA,
+ .doit = nl80211_setdel_pmksa,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_DEL_PMKSA,
+ .doit = nl80211_setdel_pmksa,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_FLUSH_PMKSA,
+ .doit = nl80211_flush_pmksa,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+
};
static struct genl_multicast_group nl80211_mlme_mcgrp = {
.name = "mlme",
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index f256dfffbf46..c01470e7de15 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1008,7 +1008,7 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
if (last_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
request_wiphy && request_wiphy == wiphy &&
- request_wiphy->strict_regulatory) {
+ request_wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY) {
/*
* This gaurantees the driver's requested regulatory domain
* will always be used as a base for further regulatory
@@ -1051,13 +1051,13 @@ static bool ignore_reg_update(struct wiphy *wiphy,
if (!last_request)
return true;
if (initiator == NL80211_REGDOM_SET_BY_CORE &&
- wiphy->custom_regulatory)
+ wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY)
return true;
/*
* wiphy->regd will be set once the device has its own
* desired regulatory domain set
*/
- if (wiphy->strict_regulatory && !wiphy->regd &&
+ if (wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY && !wiphy->regd &&
!is_world_regdom(last_request->alpha2))
return true;
return false;
@@ -1093,7 +1093,7 @@ static void handle_reg_beacon(struct wiphy *wiphy,
chan->beacon_found = true;
- if (wiphy->disable_beacon_hints)
+ if (wiphy->flags & WIPHY_FLAG_DISABLE_BEACON_HINTS)
return;
chan_before.center_freq = chan->center_freq;
@@ -1164,7 +1164,7 @@ static bool reg_is_world_roaming(struct wiphy *wiphy)
return true;
if (last_request &&
last_request->initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
- wiphy->custom_regulatory)
+ wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY)
return true;
return false;
}
@@ -1591,7 +1591,8 @@ static void reg_process_hint(struct regulatory_request *reg_request)
r = __regulatory_hint(wiphy, reg_request);
/* This is required so that the orig_* parameters are saved */
- if (r == -EALREADY && wiphy && wiphy->strict_regulatory)
+ if (r == -EALREADY && wiphy &&
+ wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY)
wiphy_update_regulatory(wiphy, reg_request->initiator);
out:
mutex_unlock(&reg_mutex);
@@ -1930,7 +1931,7 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd)
const struct ieee80211_freq_range *freq_range = NULL;
const struct ieee80211_power_rule *power_rule = NULL;
- printk(KERN_INFO "\t(start_freq - end_freq @ bandwidth), "
+ printk(KERN_INFO " (start_freq - end_freq @ bandwidth), "
"(max_antenna_gain, max_eirp)\n");
for (i = 0; i < rd->n_reg_rules; i++) {
@@ -1943,7 +1944,7 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd)
* in certain regions
*/
if (power_rule->max_antenna_gain)
- printk(KERN_INFO "\t(%d KHz - %d KHz @ %d KHz), "
+ printk(KERN_INFO " (%d KHz - %d KHz @ %d KHz), "
"(%d mBi, %d mBm)\n",
freq_range->start_freq_khz,
freq_range->end_freq_khz,
@@ -1951,7 +1952,7 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd)
power_rule->max_antenna_gain,
power_rule->max_eirp);
else
- printk(KERN_INFO "\t(%d KHz - %d KHz @ %d KHz), "
+ printk(KERN_INFO " (%d KHz - %d KHz @ %d KHz), "
"(N/A, %d mBm)\n",
freq_range->start_freq_khz,
freq_range->end_freq_khz,
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index e5f92ee758f4..12dfa62aad18 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -22,7 +22,7 @@ void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak)
{
struct cfg80211_scan_request *request;
struct net_device *dev;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
#endif
@@ -47,7 +47,7 @@ void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak)
else
nl80211_send_scan_done(rdev, dev);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
if (!request->aborted) {
memset(&wrqu, 0, sizeof(wrqu));
@@ -88,7 +88,7 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted)
WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req);
request->aborted = aborted;
- schedule_work(&wiphy_to_dev(request->wiphy)->scan_done_wk);
+ queue_work(cfg80211_wq, &wiphy_to_dev(request->wiphy)->scan_done_wk);
}
EXPORT_SYMBOL(cfg80211_scan_done);
@@ -217,7 +217,7 @@ static bool is_mesh(struct cfg80211_bss *a,
a->len_information_elements);
if (!ie)
return false;
- if (ie[1] != IEEE80211_MESH_CONFIG_LEN)
+ if (ie[1] != sizeof(struct ieee80211_meshconf_ie))
return false;
/*
@@ -225,7 +225,8 @@ static bool is_mesh(struct cfg80211_bss *a,
* comparing since that may differ between stations taking
* part in the same mesh.
*/
- return memcmp(ie + 2, meshcfg, IEEE80211_MESH_CONFIG_LEN - 2) == 0;
+ return memcmp(ie + 2, meshcfg,
+ sizeof(struct ieee80211_meshconf_ie) - 2) == 0;
}
static int cmp_bss(struct cfg80211_bss *a,
@@ -399,7 +400,7 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
res->pub.information_elements,
res->pub.len_information_elements);
if (!meshid || !meshcfg ||
- meshcfg[1] != IEEE80211_MESH_CONFIG_LEN) {
+ meshcfg[1] != sizeof(struct ieee80211_meshconf_ie)) {
/* bogus mesh */
kref_put(&res->ref, bss_release);
return NULL;
@@ -592,7 +593,7 @@ void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
}
EXPORT_SYMBOL(cfg80211_unlink_bss);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
int cfg80211_wext_siwscan(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
@@ -650,9 +651,15 @@ int cfg80211_wext_siwscan(struct net_device *dev,
i = 0;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
int j;
+
if (!wiphy->bands[band])
continue;
+
for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
+ /* ignore disabled channels */
+ if (wiphy->bands[band]->channels[j].flags &
+ IEEE80211_CHAN_DISABLED)
+ continue;
/* If we have a wireless request structure and the
* wireless request specifies frequencies, then search
@@ -859,7 +866,7 @@ ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
break;
case WLAN_EID_MESH_CONFIG:
ismesh = true;
- if (ie[1] != IEEE80211_MESH_CONFIG_LEN)
+ if (ie[1] != sizeof(struct ieee80211_meshconf_ie))
break;
buf = kmalloc(50, GFP_ATOMIC);
if (!buf)
@@ -867,35 +874,40 @@ ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
cfg = ie + 2;
memset(&iwe, 0, sizeof(iwe));
iwe.cmd = IWEVCUSTOM;
- sprintf(buf, "Mesh network (version %d)", cfg[0]);
+ sprintf(buf, "Mesh Network Path Selection Protocol ID: "
+ "0x%02X", cfg[0]);
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(info, current_ev,
+ end_buf,
+ &iwe, buf);
+ sprintf(buf, "Path Selection Metric ID: 0x%02X",
+ cfg[1]);
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(info, current_ev,
+ end_buf,
+ &iwe, buf);
+ sprintf(buf, "Congestion Control Mode ID: 0x%02X",
+ cfg[2]);
iwe.u.data.length = strlen(buf);
current_ev = iwe_stream_add_point(info, current_ev,
end_buf,
&iwe, buf);
- sprintf(buf, "Path Selection Protocol ID: "
- "0x%02X%02X%02X%02X", cfg[1], cfg[2], cfg[3],
- cfg[4]);
+ sprintf(buf, "Synchronization ID: 0x%02X", cfg[3]);
iwe.u.data.length = strlen(buf);
current_ev = iwe_stream_add_point(info, current_ev,
end_buf,
&iwe, buf);
- sprintf(buf, "Path Selection Metric ID: "
- "0x%02X%02X%02X%02X", cfg[5], cfg[6], cfg[7],
- cfg[8]);
+ sprintf(buf, "Authentication ID: 0x%02X", cfg[4]);
iwe.u.data.length = strlen(buf);
current_ev = iwe_stream_add_point(info, current_ev,
end_buf,
&iwe, buf);
- sprintf(buf, "Congestion Control Mode ID: "
- "0x%02X%02X%02X%02X", cfg[9], cfg[10],
- cfg[11], cfg[12]);
+ sprintf(buf, "Formation Info: 0x%02X", cfg[5]);
iwe.u.data.length = strlen(buf);
current_ev = iwe_stream_add_point(info, current_ev,
end_buf,
&iwe, buf);
- sprintf(buf, "Channel Precedence: "
- "0x%02X%02X%02X%02X", cfg[13], cfg[14],
- cfg[15], cfg[16]);
+ sprintf(buf, "Capabilities: 0x%02X", cfg[6]);
iwe.u.data.length = strlen(buf);
current_ev = iwe_stream_add_point(info, current_ev,
end_buf,
@@ -925,8 +937,8 @@ ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
ie += ie[1] + 2;
}
- if (bss->pub.capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)
- || ismesh) {
+ if (bss->pub.capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS) ||
+ ismesh) {
memset(&iwe, 0, sizeof(iwe));
iwe.cmd = SIOCGIWMODE;
if (ismesh)
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 9f0b2800a9d7..2333d78187e4 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -365,7 +365,7 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
u8 *country_ie;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
#endif
@@ -382,7 +382,7 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
resp_ie, resp_ie_len,
status, GFP_KERNEL);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
if (wextev) {
if (req_ie && status == WLAN_STATUS_SUCCESS) {
memset(&wrqu, 0, sizeof(wrqu));
@@ -488,7 +488,7 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
spin_lock_irqsave(&wdev->event_lock, flags);
list_add_tail(&ev->list, &wdev->event_list);
spin_unlock_irqrestore(&wdev->event_lock, flags);
- schedule_work(&rdev->event_work);
+ queue_work(cfg80211_wq, &rdev->event_work);
}
EXPORT_SYMBOL(cfg80211_connect_result);
@@ -497,7 +497,7 @@ void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid,
const u8 *resp_ie, size_t resp_ie_len)
{
struct cfg80211_bss *bss;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
#endif
@@ -532,7 +532,7 @@ void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid,
req_ie, req_ie_len, resp_ie, resp_ie_len,
GFP_KERNEL);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
if (req_ie) {
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = req_ie_len;
@@ -583,7 +583,7 @@ void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
spin_lock_irqsave(&wdev->event_lock, flags);
list_add_tail(&ev->list, &wdev->event_list);
spin_unlock_irqrestore(&wdev->event_lock, flags);
- schedule_work(&rdev->event_work);
+ queue_work(cfg80211_wq, &rdev->event_work);
}
EXPORT_SYMBOL(cfg80211_roamed);
@@ -593,7 +593,7 @@ void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
int i;
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
union iwreq_data wrqu;
#endif
@@ -651,7 +651,7 @@ void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
for (i = 0; i < 6; i++)
rdev->ops->del_key(wdev->wiphy, dev, i, NULL);
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
memset(&wrqu, 0, sizeof(wrqu));
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
@@ -681,7 +681,7 @@ void cfg80211_disconnected(struct net_device *dev, u16 reason,
spin_lock_irqsave(&wdev->event_lock, flags);
list_add_tail(&ev->list, &wdev->event_list);
spin_unlock_irqrestore(&wdev->event_lock, flags);
- schedule_work(&rdev->event_work);
+ queue_work(cfg80211_wq, &rdev->event_work);
}
EXPORT_SYMBOL(cfg80211_disconnected);
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 3fc2df86278f..59361fdcb5d0 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -320,7 +320,9 @@ int ieee80211_data_to_8023(struct sk_buff *skb, u8 *addr,
break;
case cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
if (unlikely(iftype != NL80211_IFTYPE_WDS &&
- iftype != NL80211_IFTYPE_MESH_POINT))
+ iftype != NL80211_IFTYPE_MESH_POINT &&
+ iftype != NL80211_IFTYPE_AP_VLAN &&
+ iftype != NL80211_IFTYPE_STATION))
return -1;
if (iftype == NL80211_IFTYPE_MESH_POINT) {
struct ieee80211s_hdr *meshdr =
@@ -656,7 +658,14 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
!(rdev->wiphy.interface_modes & (1 << ntype)))
return -EOPNOTSUPP;
+ /* if it's part of a bridge, reject changing type to station/ibss */
+ if (dev->br_port && (ntype == NL80211_IFTYPE_ADHOC ||
+ ntype == NL80211_IFTYPE_STATION))
+ return -EBUSY;
+
if (ntype != otype) {
+ dev->ieee80211_ptr->use_4addr = false;
+
switch (otype) {
case NL80211_IFTYPE_ADHOC:
cfg80211_leave_ibss(rdev, dev, false);
@@ -680,5 +689,34 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
WARN_ON(!err && dev->ieee80211_ptr->iftype != ntype);
+ if (!err && params && params->use_4addr != -1)
+ dev->ieee80211_ptr->use_4addr = params->use_4addr;
+
+ if (!err) {
+ dev->priv_flags &= ~IFF_DONT_BRIDGE;
+ switch (ntype) {
+ case NL80211_IFTYPE_STATION:
+ if (dev->ieee80211_ptr->use_4addr)
+ break;
+ /* fall through */
+ case NL80211_IFTYPE_ADHOC:
+ dev->priv_flags |= IFF_DONT_BRIDGE;
+ break;
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_AP_VLAN:
+ case NL80211_IFTYPE_WDS:
+ case NL80211_IFTYPE_MESH_POINT:
+ /* bridging OK */
+ break;
+ case NL80211_IFTYPE_MONITOR:
+ /* monitor can't bridge anyway */
+ break;
+ case NL80211_IFTYPE_UNSPECIFIED:
+ case __NL80211_IFTYPE_AFTER_LAST:
+ /* not happening */
+ break;
+ }
+ }
+
return err;
}
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 561a45cf2a6a..584eb4826e02 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -437,6 +437,7 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err, i;
+ bool rejoin = false;
if (!wdev->wext.keys) {
wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
@@ -466,8 +467,24 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
if (remove) {
err = 0;
- if (wdev->current_bss)
+ if (wdev->current_bss) {
+ /*
+ * If removing the current TX key, we will need to
+ * join a new IBSS without the privacy bit clear.
+ */
+ if (idx == wdev->wext.default_key &&
+ wdev->iftype == NL80211_IFTYPE_ADHOC) {
+ __cfg80211_leave_ibss(rdev, wdev->netdev, true);
+ rejoin = true;
+ }
err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
+ }
+ /*
+ * Applications using wireless extensions expect to be
+ * able to delete keys that don't exist, so allow that.
+ */
+ if (err == -ENOENT)
+ err = 0;
if (!err) {
if (!addr) {
wdev->wext.keys->params[idx].key_len = 0;
@@ -478,12 +495,9 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
else if (idx == wdev->wext.default_mgmt_key)
wdev->wext.default_mgmt_key = -1;
}
- /*
- * Applications using wireless extensions expect to be
- * able to delete keys that don't exist, so allow that.
- */
- if (err == -ENOENT)
- return 0;
+
+ if (!err && rejoin)
+ err = cfg80211_ibss_wext_join(rdev, wdev);
return err;
}
@@ -511,11 +525,25 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
(tx_key || (!addr && wdev->wext.default_key == -1))) {
- if (wdev->current_bss)
+ if (wdev->current_bss) {
+ /*
+ * If we are getting a new TX key from not having
+ * had one before we need to join a new IBSS with
+ * the privacy bit set.
+ */
+ if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
+ wdev->wext.default_key == -1) {
+ __cfg80211_leave_ibss(rdev, wdev->netdev, true);
+ rejoin = true;
+ }
err = rdev->ops->set_default_key(&rdev->wiphy,
dev, idx);
- if (!err)
+ }
+ if (!err) {
wdev->wext.default_key = idx;
+ if (rejoin)
+ err = cfg80211_ibss_wext_join(rdev, wdev);
+ }
return err;
}
@@ -539,10 +567,13 @@ static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
{
int err;
+ /* devlist mutex needed for possible IBSS re-join */
+ mutex_lock(&rdev->devlist_mtx);
wdev_lock(dev->ieee80211_ptr);
err = __cfg80211_set_encryption(rdev, dev, addr, remove,
tx_key, idx, params);
wdev_unlock(dev->ieee80211_ptr);
+ mutex_unlock(&rdev->devlist_mtx);
return err;
}
@@ -904,8 +935,6 @@ static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
{
- wdev->wext.connect.crypto.wpa_versions = 0;
-
if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
IW_AUTH_WPA_VERSION_WPA2|
IW_AUTH_WPA_VERSION_DISABLED))
@@ -933,8 +962,6 @@ static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
{
- wdev->wext.connect.crypto.cipher_group = 0;
-
if (cipher & IW_AUTH_CIPHER_WEP40)
wdev->wext.connect.crypto.cipher_group =
WLAN_CIPHER_SUITE_WEP40;
@@ -950,6 +977,8 @@ static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
wdev->wext.connect.crypto.cipher_group =
WLAN_CIPHER_SUITE_AES_CMAC;
+ else if (cipher & IW_AUTH_CIPHER_NONE)
+ wdev->wext.connect.crypto.cipher_group = 0;
else
return -EINVAL;
@@ -1372,6 +1401,47 @@ int cfg80211_wext_giwessid(struct net_device *dev,
}
EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid);
+int cfg80211_wext_siwpmksa(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+ struct cfg80211_pmksa cfg_pmksa;
+ struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
+
+ memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
+
+ if (wdev->iftype != NL80211_IFTYPE_STATION)
+ return -EINVAL;
+
+ cfg_pmksa.bssid = pmksa->bssid.sa_data;
+ cfg_pmksa.pmkid = pmksa->pmkid;
+
+ switch (pmksa->cmd) {
+ case IW_PMKSA_ADD:
+ if (!rdev->ops->set_pmksa)
+ return -EOPNOTSUPP;
+
+ return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
+
+ case IW_PMKSA_REMOVE:
+ if (!rdev->ops->del_pmksa)
+ return -EOPNOTSUPP;
+
+ return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
+
+ case IW_PMKSA_FLUSH:
+ if (!rdev->ops->flush_pmksa)
+ return -EOPNOTSUPP;
+
+ return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
+
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
static const iw_handler cfg80211_handlers[] = {
[IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname,
[IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq,
@@ -1404,6 +1474,7 @@ static const iw_handler cfg80211_handlers[] = {
[IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth,
[IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth,
[IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
+ [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa,
};
const struct iw_handler_def cfg80211_wext_handler = {
diff --git a/net/wireless/wext.c b/net/wireless/wext-core.c
index 60fe57761ca9..5e1656bdf23b 100644
--- a/net/wireless/wext.c
+++ b/net/wireless/wext-core.c
@@ -1,112 +1,28 @@
/*
- * This file implement the Wireless Extensions APIs.
+ * This file implement the Wireless Extensions core API.
*
* Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
* Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
*
* (As all part of the Linux kernel, this file is GPL)
*/
-
-/************************** DOCUMENTATION **************************/
-/*
- * API definition :
- * --------------
- * See <linux/wireless.h> for details of the APIs and the rest.
- *
- * History :
- * -------
- *
- * v1 - 5.12.01 - Jean II
- * o Created this file.
- *
- * v2 - 13.12.01 - Jean II
- * o Move /proc/net/wireless stuff from net/core/dev.c to here
- * o Make Wireless Extension IOCTLs go through here
- * o Added iw_handler handling ;-)
- * o Added standard ioctl description
- * o Initial dumb commit strategy based on orinoco.c
- *
- * v3 - 19.12.01 - Jean II
- * o Make sure we don't go out of standard_ioctl[] in ioctl_standard_call
- * o Add event dispatcher function
- * o Add event description
- * o Propagate events as rtnetlink IFLA_WIRELESS option
- * o Generate event on selected SET requests
- *
- * v4 - 18.04.02 - Jean II
- * o Fix stupid off by one in iw_ioctl_description : IW_ESSID_MAX_SIZE + 1
- *
- * v5 - 21.06.02 - Jean II
- * o Add IW_PRIV_TYPE_ADDR in priv_type_size (+cleanup)
- * o Reshuffle IW_HEADER_TYPE_XXX to map IW_PRIV_TYPE_XXX changes
- * o Add IWEVCUSTOM for driver specific event/scanning token
- * o Turn on WE_STRICT_WRITE by default + kernel warning
- * o Fix WE_STRICT_WRITE in ioctl_export_private() (32 => iw_num)
- * o Fix off-by-one in test (extra_size <= IFNAMSIZ)
- *
- * v6 - 9.01.03 - Jean II
- * o Add common spy support : iw_handler_set_spy(), wireless_spy_update()
- * o Add enhanced spy support : iw_handler_set_thrspy() and event.
- * o Add WIRELESS_EXT version display in /proc/net/wireless
- *
- * v6 - 18.06.04 - Jean II
- * o Change get_spydata() method for added safety
- * o Remove spy #ifdef, they are always on -> cleaner code
- * o Allow any size GET request if user specifies length > max
- * and if request has IW_DESCR_FLAG_NOMAX flag or is SIOCGIWPRIV
- * o Start migrating get_wireless_stats to struct iw_handler_def
- * o Add wmb() in iw_handler_set_spy() for non-coherent archs/cpus
- * Based on patch from Pavel Roskin <proski@gnu.org> :
- * o Fix kernel data leak to user space in private handler handling
- *
- * v7 - 18.3.05 - Jean II
- * o Remove (struct iw_point *)->pointer from events and streams
- * o Remove spy_offset from struct iw_handler_def
- * o Start deprecating dev->get_wireless_stats, output a warning
- * o If IW_QUAL_DBM is set, show dBm values in /proc/net/wireless
- * o Don't lose INVALID/DBM flags when clearing UPDATED flags (iwstats)
- *
- * v8 - 17.02.06 - Jean II
- * o RtNetlink requests support (SET/GET)
- *
- * v8b - 03.08.06 - Herbert Xu
- * o Fix Wireless Event locking issues.
- *
- * v9 - 14.3.06 - Jean II
- * o Change length in ESSID and NICK to strlen() instead of strlen()+1
- * o Make standard_ioctl_num and standard_event_num unsigned
- * o Remove (struct net_device *)->get_wireless_stats()
- *
- * v10 - 16.3.07 - Jean II
- * o Prevent leaking of kernel space in stream on 64 bits.
- */
-
-/***************************** INCLUDES *****************************/
-
-#include <linux/module.h>
-#include <linux/types.h> /* off_t */
-#include <linux/netdevice.h> /* struct ifreq, dev_get_by_name() */
-#include <linux/proc_fs.h>
-#include <linux/rtnetlink.h> /* rtnetlink stuff */
-#include <linux/seq_file.h>
-#include <linux/init.h> /* for __init */
-#include <linux/if_arp.h> /* ARPHRD_ETHER */
-#include <linux/etherdevice.h> /* compare_ether_addr */
-#include <linux/interrupt.h>
-#include <net/net_namespace.h>
-
-#include <linux/wireless.h> /* Pretty obvious */
-#include <net/iw_handler.h> /* New driver API */
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/wireless.h>
+#include <linux/uaccess.h>
+#include <net/cfg80211.h>
+#include <net/iw_handler.h>
#include <net/netlink.h>
#include <net/wext.h>
+#include <net/net_namespace.h>
+
+typedef int (*wext_ioctl_func)(struct net_device *, struct iwreq *,
+ unsigned int, struct iw_request_info *,
+ iw_handler);
-#include <asm/uaccess.h> /* copy_to_user() */
-/************************* GLOBAL VARIABLES *************************/
-/*
- * You should not use global variables, because of re-entrancy.
- * On our case, it's only const, so it's OK...
- */
/*
* Meta-data about all the standard Wireless Extension request we
* know about.
@@ -390,18 +306,6 @@ static const struct iw_ioctl_description standard_event[] = {
};
static const unsigned standard_event_num = ARRAY_SIZE(standard_event);
-/* Size (in bytes) of the various private data types */
-static const char iw_priv_type_size[] = {
- 0, /* IW_PRIV_TYPE_NONE */
- 1, /* IW_PRIV_TYPE_BYTE */
- 1, /* IW_PRIV_TYPE_CHAR */
- 0, /* Not defined */
- sizeof(__u32), /* IW_PRIV_TYPE_INT */
- sizeof(struct iw_freq), /* IW_PRIV_TYPE_FLOAT */
- sizeof(struct sockaddr), /* IW_PRIV_TYPE_ADDR */
- 0, /* Not defined */
-};
-
/* Size (in bytes) of various events */
static const int event_type_size[] = {
IW_EV_LCP_LEN, /* IW_HEADER_TYPE_NULL */
@@ -433,323 +337,346 @@ static const int compat_event_type_size[] = {
};
#endif
-/************************ COMMON SUBROUTINES ************************/
-/*
- * Stuff that may be used in various place or doesn't fit in one
- * of the section below.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Return the driver handler associated with a specific Wireless Extension.
- */
-static iw_handler get_handler(struct net_device *dev, unsigned int cmd)
-{
- /* Don't "optimise" the following variable, it will crash */
- unsigned int index; /* *MUST* be unsigned */
- /* Check if we have some wireless handlers defined */
- if (dev->wireless_handlers == NULL)
- return NULL;
-
- /* Try as a standard command */
- index = cmd - SIOCIWFIRST;
- if (index < dev->wireless_handlers->num_standard)
- return dev->wireless_handlers->standard[index];
-
- /* Try as a private command */
- index = cmd - SIOCIWFIRSTPRIV;
- if (index < dev->wireless_handlers->num_private)
- return dev->wireless_handlers->private[index];
+/* IW event code */
- /* Not found */
- return NULL;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Get statistics out of the driver
- */
-struct iw_statistics *get_wireless_stats(struct net_device *dev)
+static int __net_init wext_pernet_init(struct net *net)
{
- /* New location */
- if ((dev->wireless_handlers != NULL) &&
- (dev->wireless_handlers->get_wireless_stats != NULL))
- return dev->wireless_handlers->get_wireless_stats(dev);
-
- /* Not found */
- return NULL;
+ skb_queue_head_init(&net->wext_nlevents);
+ return 0;
}
-/* ---------------------------------------------------------------- */
-/*
- * Call the commit handler in the driver
- * (if exist and if conditions are right)
- *
- * Note : our current commit strategy is currently pretty dumb,
- * but we will be able to improve on that...
- * The goal is to try to agreagate as many changes as possible
- * before doing the commit. Drivers that will define a commit handler
- * are usually those that need a reset after changing parameters, so
- * we want to minimise the number of reset.
- * A cool idea is to use a timer : at each "set" command, we re-set the
- * timer, when the timer eventually fires, we call the driver.
- * Hopefully, more on that later.
- *
- * Also, I'm waiting to see how many people will complain about the
- * netif_running(dev) test. I'm open on that one...
- * Hopefully, the driver will remember to do a commit in "open()" ;-)
- */
-static int call_commit_handler(struct net_device *dev)
+static void __net_exit wext_pernet_exit(struct net *net)
{
- if ((netif_running(dev)) &&
- (dev->wireless_handlers->standard[0] != NULL))
- /* Call the commit handler on the driver */
- return dev->wireless_handlers->standard[0](dev, NULL,
- NULL, NULL);
- else
- return 0; /* Command completed successfully */
+ skb_queue_purge(&net->wext_nlevents);
}
-/* ---------------------------------------------------------------- */
-/*
- * Calculate size of private arguments
- */
-static int get_priv_size(__u16 args)
-{
- int num = args & IW_PRIV_SIZE_MASK;
- int type = (args & IW_PRIV_TYPE_MASK) >> 12;
+static struct pernet_operations wext_pernet_ops = {
+ .init = wext_pernet_init,
+ .exit = wext_pernet_exit,
+};
- return num * iw_priv_type_size[type];
+static int __init wireless_nlevent_init(void)
+{
+ return register_pernet_subsys(&wext_pernet_ops);
}
-/* ---------------------------------------------------------------- */
-/*
- * Re-calculate the size of private arguments
- */
-static int adjust_priv_size(__u16 args, struct iw_point *iwp)
+subsys_initcall(wireless_nlevent_init);
+
+/* Process events generated by the wireless layer or the driver. */
+static void wireless_nlevent_process(struct work_struct *work)
{
- int num = iwp->length;
- int max = args & IW_PRIV_SIZE_MASK;
- int type = (args & IW_PRIV_TYPE_MASK) >> 12;
+ struct sk_buff *skb;
+ struct net *net;
- /* Make sure the driver doesn't goof up */
- if (max < num)
- num = max;
+ rtnl_lock();
+
+ for_each_net(net) {
+ while ((skb = skb_dequeue(&net->wext_nlevents)))
+ rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL,
+ GFP_KERNEL);
+ }
- return num * iw_priv_type_size[type];
+ rtnl_unlock();
}
-/* ---------------------------------------------------------------- */
-/*
- * Standard Wireless Handler : get wireless stats
- * Allow programatic access to /proc/net/wireless even if /proc
- * doesn't exist... Also more efficient...
- */
-static int iw_handler_get_iwstats(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
+static DECLARE_WORK(wireless_nlevent_work, wireless_nlevent_process);
+
+static struct nlmsghdr *rtnetlink_ifinfo_prep(struct net_device *dev,
+ struct sk_buff *skb)
{
- /* Get stats from the driver */
- struct iw_statistics *stats;
+ struct ifinfomsg *r;
+ struct nlmsghdr *nlh;
- stats = get_wireless_stats(dev);
- if (stats) {
- /* Copy statistics to extra */
- memcpy(extra, stats, sizeof(struct iw_statistics));
- wrqu->data.length = sizeof(struct iw_statistics);
+ nlh = nlmsg_put(skb, 0, 0, RTM_NEWLINK, sizeof(*r), 0);
+ if (!nlh)
+ return NULL;
- /* Check if we need to clear the updated flag */
- if (wrqu->data.flags != 0)
- stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
- return 0;
- } else
- return -EOPNOTSUPP;
+ r = nlmsg_data(nlh);
+ r->ifi_family = AF_UNSPEC;
+ r->__ifi_pad = 0;
+ r->ifi_type = dev->type;
+ r->ifi_index = dev->ifindex;
+ r->ifi_flags = dev_get_flags(dev);
+ r->ifi_change = 0; /* Wireless changes don't affect those flags */
+
+ NLA_PUT_STRING(skb, IFLA_IFNAME, dev->name);
+
+ return nlh;
+ nla_put_failure:
+ nlmsg_cancel(skb, nlh);
+ return NULL;
}
-/* ---------------------------------------------------------------- */
+
/*
- * Standard Wireless Handler : get iwpriv definitions
- * Export the driver private handler definition
- * They will be picked up by tools like iwpriv...
+ * Main event dispatcher. Called from other parts and drivers.
+ * Send the event on the appropriate channels.
+ * May be called from interrupt context.
*/
-static int iw_handler_get_private(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
+void wireless_send_event(struct net_device * dev,
+ unsigned int cmd,
+ union iwreq_data * wrqu,
+ const char * extra)
{
- /* Check if the driver has something to export */
- if ((dev->wireless_handlers->num_private_args == 0) ||
- (dev->wireless_handlers->private_args == NULL))
- return -EOPNOTSUPP;
+ const struct iw_ioctl_description * descr = NULL;
+ int extra_len = 0;
+ struct iw_event *event; /* Mallocated whole event */
+ int event_len; /* Its size */
+ int hdr_len; /* Size of the event header */
+ int wrqu_off = 0; /* Offset in wrqu */
+ /* Don't "optimise" the following variable, it will crash */
+ unsigned cmd_index; /* *MUST* be unsigned */
+ struct sk_buff *skb;
+ struct nlmsghdr *nlh;
+ struct nlattr *nla;
+#ifdef CONFIG_COMPAT
+ struct __compat_iw_event *compat_event;
+ struct compat_iw_point compat_wrqu;
+ struct sk_buff *compskb;
+#endif
- /* Check if there is enough buffer up there */
- if (wrqu->data.length < dev->wireless_handlers->num_private_args) {
- /* User space can't know in advance how large the buffer
- * needs to be. Give it a hint, so that we can support
- * any size buffer we want somewhat efficiently... */
- wrqu->data.length = dev->wireless_handlers->num_private_args;
- return -E2BIG;
+ /*
+ * Nothing in the kernel sends scan events with data, be safe.
+ * This is necessary because we cannot fix up scan event data
+ * for compat, due to being contained in 'extra', but normally
+ * applications are required to retrieve the scan data anyway
+ * and no data is included in the event, this codifies that
+ * practice.
+ */
+ if (WARN_ON(cmd == SIOCGIWSCAN && extra))
+ extra = NULL;
+
+ /* Get the description of the Event */
+ if (cmd <= SIOCIWLAST) {
+ cmd_index = cmd - SIOCIWFIRST;
+ if (cmd_index < standard_ioctl_num)
+ descr = &(standard_ioctl[cmd_index]);
+ } else {
+ cmd_index = cmd - IWEVFIRST;
+ if (cmd_index < standard_event_num)
+ descr = &(standard_event[cmd_index]);
+ }
+ /* Don't accept unknown events */
+ if (descr == NULL) {
+ /* Note : we don't return an error to the driver, because
+ * the driver would not know what to do about it. It can't
+ * return an error to the user, because the event is not
+ * initiated by a user request.
+ * The best the driver could do is to log an error message.
+ * We will do it ourselves instead...
+ */
+ printk(KERN_ERR "%s (WE) : Invalid/Unknown Wireless Event (0x%04X)\n",
+ dev->name, cmd);
+ return;
}
- /* Set the number of available ioctls. */
- wrqu->data.length = dev->wireless_handlers->num_private_args;
+ /* Check extra parameters and set extra_len */
+ if (descr->header_type == IW_HEADER_TYPE_POINT) {
+ /* Check if number of token fits within bounds */
+ if (wrqu->data.length > descr->max_tokens) {
+ printk(KERN_ERR "%s (WE) : Wireless Event too big (%d)\n", dev->name, wrqu->data.length);
+ return;
+ }
+ if (wrqu->data.length < descr->min_tokens) {
+ printk(KERN_ERR "%s (WE) : Wireless Event too small (%d)\n", dev->name, wrqu->data.length);
+ return;
+ }
+ /* Calculate extra_len - extra is NULL for restricted events */
+ if (extra != NULL)
+ extra_len = wrqu->data.length * descr->token_size;
+ /* Always at an offset in wrqu */
+ wrqu_off = IW_EV_POINT_OFF;
+ }
- /* Copy structure to the user buffer. */
- memcpy(extra, dev->wireless_handlers->private_args,
- sizeof(struct iw_priv_args) * wrqu->data.length);
+ /* Total length of the event */
+ hdr_len = event_type_size[descr->header_type];
+ event_len = hdr_len + extra_len;
- return 0;
-}
+ /*
+ * The problem for 64/32 bit.
+ *
+ * On 64-bit, a regular event is laid out as follows:
+ * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
+ * | event.len | event.cmd | p a d d i n g |
+ * | wrqu data ... (with the correct size) |
+ *
+ * This padding exists because we manipulate event->u,
+ * and 'event' is not packed.
+ *
+ * An iw_point event is laid out like this instead:
+ * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
+ * | event.len | event.cmd | p a d d i n g |
+ * | iwpnt.len | iwpnt.flg | p a d d i n g |
+ * | extra data ...
+ *
+ * The second padding exists because struct iw_point is extended,
+ * but this depends on the platform...
+ *
+ * On 32-bit, all the padding shouldn't be there.
+ */
+ skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+ if (!skb)
+ return;
-/******************** /proc/net/wireless SUPPORT ********************/
-/*
- * The /proc/net/wireless file is a human readable user-space interface
- * exporting various wireless specific statistics from the wireless devices.
- * This is the most popular part of the Wireless Extensions ;-)
- *
- * This interface is a pure clone of /proc/net/dev (in net/core/dev.c).
- * The content of the file is basically the content of "struct iw_statistics".
- */
+ /* Send via the RtNetlink event channel */
+ nlh = rtnetlink_ifinfo_prep(dev, skb);
+ if (WARN_ON(!nlh)) {
+ kfree_skb(skb);
+ return;
+ }
-#ifdef CONFIG_PROC_FS
+ /* Add the wireless events in the netlink packet */
+ nla = nla_reserve(skb, IFLA_WIRELESS, event_len);
+ if (!nla) {
+ kfree_skb(skb);
+ return;
+ }
+ event = nla_data(nla);
-/* ---------------------------------------------------------------- */
-/*
- * Print one entry (line) of /proc/net/wireless
- */
-static void wireless_seq_printf_stats(struct seq_file *seq,
- struct net_device *dev)
-{
- /* Get stats from the driver */
- struct iw_statistics *stats = get_wireless_stats(dev);
- static struct iw_statistics nullstats = {};
+ /* Fill event - first clear to avoid data leaking */
+ memset(event, 0, hdr_len);
+ event->len = event_len;
+ event->cmd = cmd;
+ memcpy(&event->u, ((char *) wrqu) + wrqu_off, hdr_len - IW_EV_LCP_LEN);
+ if (extra_len)
+ memcpy(((char *) event) + hdr_len, extra, extra_len);
- /* show device if it's wireless regardless of current stats */
- if (!stats && dev->wireless_handlers)
- stats = &nullstats;
+ nlmsg_end(skb, nlh);
+#ifdef CONFIG_COMPAT
+ hdr_len = compat_event_type_size[descr->header_type];
+ event_len = hdr_len + extra_len;
- if (stats) {
- seq_printf(seq, "%6s: %04x %3d%c %3d%c %3d%c %6d %6d %6d "
- "%6d %6d %6d\n",
- dev->name, stats->status, stats->qual.qual,
- stats->qual.updated & IW_QUAL_QUAL_UPDATED
- ? '.' : ' ',
- ((__s32) stats->qual.level) -
- ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
- stats->qual.updated & IW_QUAL_LEVEL_UPDATED
- ? '.' : ' ',
- ((__s32) stats->qual.noise) -
- ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
- stats->qual.updated & IW_QUAL_NOISE_UPDATED
- ? '.' : ' ',
- stats->discard.nwid, stats->discard.code,
- stats->discard.fragment, stats->discard.retries,
- stats->discard.misc, stats->miss.beacon);
-
- if (stats != &nullstats)
- stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
+ compskb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+ if (!compskb) {
+ kfree_skb(skb);
+ return;
}
-}
-/* ---------------------------------------------------------------- */
-/*
- * Print info for /proc/net/wireless (print all entries)
- */
-static int wireless_dev_seq_show(struct seq_file *seq, void *v)
-{
- might_sleep();
-
- if (v == SEQ_START_TOKEN)
- seq_printf(seq, "Inter-| sta-| Quality | Discarded "
- "packets | Missed | WE\n"
- " face | tus | link level noise | nwid "
- "crypt frag retry misc | beacon | %d\n",
- WIRELESS_EXT);
- else
- wireless_seq_printf_stats(seq, v);
- return 0;
+ /* Send via the RtNetlink event channel */
+ nlh = rtnetlink_ifinfo_prep(dev, compskb);
+ if (WARN_ON(!nlh)) {
+ kfree_skb(skb);
+ kfree_skb(compskb);
+ return;
+ }
+
+ /* Add the wireless events in the netlink packet */
+ nla = nla_reserve(compskb, IFLA_WIRELESS, event_len);
+ if (!nla) {
+ kfree_skb(skb);
+ kfree_skb(compskb);
+ return;
+ }
+ compat_event = nla_data(nla);
+
+ compat_event->len = event_len;
+ compat_event->cmd = cmd;
+ if (descr->header_type == IW_HEADER_TYPE_POINT) {
+ compat_wrqu.length = wrqu->data.length;
+ compat_wrqu.flags = wrqu->data.flags;
+ memcpy(&compat_event->pointer,
+ ((char *) &compat_wrqu) + IW_EV_COMPAT_POINT_OFF,
+ hdr_len - IW_EV_COMPAT_LCP_LEN);
+ if (extra_len)
+ memcpy(((char *) compat_event) + hdr_len,
+ extra, extra_len);
+ } else {
+ /* extra_len must be zero, so no if (extra) needed */
+ memcpy(&compat_event->pointer, wrqu,
+ hdr_len - IW_EV_COMPAT_LCP_LEN);
+ }
+
+ nlmsg_end(compskb, nlh);
+
+ skb_shinfo(skb)->frag_list = compskb;
+#endif
+ skb_queue_tail(&dev_net(dev)->wext_nlevents, skb);
+ schedule_work(&wireless_nlevent_work);
}
+EXPORT_SYMBOL(wireless_send_event);
+
+
+
+/* IW handlers */
-static void *wireless_dev_seq_start(struct seq_file *seq, loff_t *pos)
+struct iw_statistics *get_wireless_stats(struct net_device *dev)
{
- struct net *net = seq_file_net(seq);
- loff_t off;
- struct net_device *dev;
+#ifdef CONFIG_WIRELESS_EXT
+ if ((dev->wireless_handlers != NULL) &&
+ (dev->wireless_handlers->get_wireless_stats != NULL))
+ return dev->wireless_handlers->get_wireless_stats(dev);
+#endif
- rtnl_lock();
- if (!*pos)
- return SEQ_START_TOKEN;
+#ifdef CONFIG_CFG80211_WEXT
+ if (dev->ieee80211_ptr && dev->ieee80211_ptr &&
+ dev->ieee80211_ptr->wiphy &&
+ dev->ieee80211_ptr->wiphy->wext &&
+ dev->ieee80211_ptr->wiphy->wext->get_wireless_stats)
+ return dev->ieee80211_ptr->wiphy->wext->get_wireless_stats(dev);
+#endif
- off = 1;
- for_each_netdev(net, dev)
- if (off++ == *pos)
- return dev;
+ /* not found */
return NULL;
}
-static void *wireless_dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+static int iw_handler_get_iwstats(struct net_device * dev,
+ struct iw_request_info * info,
+ union iwreq_data * wrqu,
+ char * extra)
{
- struct net *net = seq_file_net(seq);
+ /* Get stats from the driver */
+ struct iw_statistics *stats;
- ++*pos;
+ stats = get_wireless_stats(dev);
+ if (stats) {
+ /* Copy statistics to extra */
+ memcpy(extra, stats, sizeof(struct iw_statistics));
+ wrqu->data.length = sizeof(struct iw_statistics);
- return v == SEQ_START_TOKEN ?
- first_net_device(net) : next_net_device(v);
+ /* Check if we need to clear the updated flag */
+ if (wrqu->data.flags != 0)
+ stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
+ return 0;
+ } else
+ return -EOPNOTSUPP;
}
-static void wireless_dev_seq_stop(struct seq_file *seq, void *v)
+static iw_handler get_handler(struct net_device *dev, unsigned int cmd)
{
- rtnl_unlock();
-}
-
-static const struct seq_operations wireless_seq_ops = {
- .start = wireless_dev_seq_start,
- .next = wireless_dev_seq_next,
- .stop = wireless_dev_seq_stop,
- .show = wireless_dev_seq_show,
-};
+ /* Don't "optimise" the following variable, it will crash */
+ unsigned int index; /* *MUST* be unsigned */
+ const struct iw_handler_def *handlers = NULL;
-static int seq_open_wireless(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &wireless_seq_ops,
- sizeof(struct seq_net_private));
-}
+#ifdef CONFIG_CFG80211_WEXT
+ if (dev->ieee80211_ptr && dev->ieee80211_ptr->wiphy)
+ handlers = dev->ieee80211_ptr->wiphy->wext;
+#endif
+#ifdef CONFIG_WIRELESS_EXT
+ if (dev->wireless_handlers)
+ handlers = dev->wireless_handlers;
+#endif
-static const struct file_operations wireless_seq_fops = {
- .owner = THIS_MODULE,
- .open = seq_open_wireless,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
+ if (!handlers)
+ return NULL;
-int wext_proc_init(struct net *net)
-{
- /* Create /proc/net/wireless entry */
- if (!proc_net_fops_create(net, "wireless", S_IRUGO, &wireless_seq_fops))
- return -ENOMEM;
+ /* Try as a standard command */
+ index = cmd - SIOCIWFIRST;
+ if (index < handlers->num_standard)
+ return handlers->standard[index];
- return 0;
-}
+#ifdef CONFIG_WEXT_PRIV
+ /* Try as a private command */
+ index = cmd - SIOCIWFIRSTPRIV;
+ if (index < handlers->num_private)
+ return handlers->private[index];
+#endif
-void wext_proc_exit(struct net *net)
-{
- proc_net_remove(net, "wireless");
+ /* Not found */
+ return NULL;
}
-#endif /* CONFIG_PROC_FS */
-/************************** IOCTL SUPPORT **************************/
-/*
- * The original user space API to configure all those Wireless Extensions
- * is through IOCTLs.
- * In there, we check if we need to call the new driver API (iw_handler)
- * or just call the driver ioctl handler.
- */
-
-/* ---------------------------------------------------------------- */
static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
const struct iw_ioctl_description *descr,
iw_handler handler, struct net_device *dev,
@@ -875,7 +802,8 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
}
/* Generate an event to notify listeners of the change */
- if ((descr->flags & IW_DESCR_FLAG_EVENT) && err == -EIWCOMMIT) {
+ if ((descr->flags & IW_DESCR_FLAG_EVENT) &&
+ ((err == 0) || (err == -EIWCOMMIT))) {
union iwreq_data *data = (union iwreq_data *) iwp;
if (descr->flags & IW_DESCR_FLAG_RESTRICT)
@@ -893,188 +821,39 @@ out:
}
/*
- * Wrapper to call a standard Wireless Extension handler.
- * We do various checks and also take care of moving data between
- * user space and kernel space.
- */
-static int ioctl_standard_call(struct net_device * dev,
- struct iwreq *iwr,
- unsigned int cmd,
- struct iw_request_info *info,
- iw_handler handler)
-{
- const struct iw_ioctl_description * descr;
- int ret = -EINVAL;
-
- /* Get the description of the IOCTL */
- if ((cmd - SIOCIWFIRST) >= standard_ioctl_num)
- return -EOPNOTSUPP;
- descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
-
- /* Check if we have a pointer to user space data or not */
- if (descr->header_type != IW_HEADER_TYPE_POINT) {
-
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, info, &(iwr->u), NULL);
-
- /* Generate an event to notify listeners of the change */
- if ((descr->flags & IW_DESCR_FLAG_EVENT) &&
- ((ret == 0) || (ret == -EIWCOMMIT)))
- wireless_send_event(dev, cmd, &(iwr->u), NULL);
- } else {
- ret = ioctl_standard_iw_point(&iwr->u.data, cmd, descr,
- handler, dev, info);
- }
-
- /* Call commit handler if needed and defined */
- if (ret == -EIWCOMMIT)
- ret = call_commit_handler(dev);
-
- /* Here, we will generate the appropriate event if needed */
-
- return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a private Wireless Extension handler.
- * We do various checks and also take care of moving data between
- * user space and kernel space.
- * It's not as nice and slimline as the standard wrapper. The cause
- * is struct iw_priv_args, which was not really designed for the
- * job we are going here.
+ * Call the commit handler in the driver
+ * (if exist and if conditions are right)
+ *
+ * Note : our current commit strategy is currently pretty dumb,
+ * but we will be able to improve on that...
+ * The goal is to try to agreagate as many changes as possible
+ * before doing the commit. Drivers that will define a commit handler
+ * are usually those that need a reset after changing parameters, so
+ * we want to minimise the number of reset.
+ * A cool idea is to use a timer : at each "set" command, we re-set the
+ * timer, when the timer eventually fires, we call the driver.
+ * Hopefully, more on that later.
*
- * IMPORTANT : This function prevent to set and get data on the same
- * IOCTL and enforce the SET/GET convention. Not doing it would be
- * far too hairy...
- * If you need to set and get data at the same time, please don't use
- * a iw_handler but process it in your ioctl handler (i.e. use the
- * old driver API).
+ * Also, I'm waiting to see how many people will complain about the
+ * netif_running(dev) test. I'm open on that one...
+ * Hopefully, the driver will remember to do a commit in "open()" ;-)
*/
-static int get_priv_descr_and_size(struct net_device *dev, unsigned int cmd,
- const struct iw_priv_args **descrp)
-{
- const struct iw_priv_args *descr;
- int i, extra_size;
-
- descr = NULL;
- for (i = 0; i < dev->wireless_handlers->num_private_args; i++) {
- if (cmd == dev->wireless_handlers->private_args[i].cmd) {
- descr = &dev->wireless_handlers->private_args[i];
- break;
- }
- }
-
- extra_size = 0;
- if (descr) {
- if (IW_IS_SET(cmd)) {
- int offset = 0; /* For sub-ioctls */
- /* Check for sub-ioctl handler */
- if (descr->name[0] == '\0')
- /* Reserve one int for sub-ioctl index */
- offset = sizeof(__u32);
-
- /* Size of set arguments */
- extra_size = get_priv_size(descr->set_args);
-
- /* Does it fits in iwr ? */
- if ((descr->set_args & IW_PRIV_SIZE_FIXED) &&
- ((extra_size + offset) <= IFNAMSIZ))
- extra_size = 0;
- } else {
- /* Size of get arguments */
- extra_size = get_priv_size(descr->get_args);
-
- /* Does it fits in iwr ? */
- if ((descr->get_args & IW_PRIV_SIZE_FIXED) &&
- (extra_size <= IFNAMSIZ))
- extra_size = 0;
- }
- }
- *descrp = descr;
- return extra_size;
-}
-
-static int ioctl_private_iw_point(struct iw_point *iwp, unsigned int cmd,
- const struct iw_priv_args *descr,
- iw_handler handler, struct net_device *dev,
- struct iw_request_info *info, int extra_size)
-{
- char *extra;
- int err;
-
- /* Check what user space is giving us */
- if (IW_IS_SET(cmd)) {
- if (!iwp->pointer && iwp->length != 0)
- return -EFAULT;
-
- if (iwp->length > (descr->set_args & IW_PRIV_SIZE_MASK))
- return -E2BIG;
- } else if (!iwp->pointer)
- return -EFAULT;
-
- extra = kmalloc(extra_size, GFP_KERNEL);
- if (!extra)
- return -ENOMEM;
-
- /* If it is a SET, get all the extra data in here */
- if (IW_IS_SET(cmd) && (iwp->length != 0)) {
- if (copy_from_user(extra, iwp->pointer, extra_size)) {
- err = -EFAULT;
- goto out;
- }
- }
-
- /* Call the handler */
- err = handler(dev, info, (union iwreq_data *) iwp, extra);
-
- /* If we have something to return to the user */
- if (!err && IW_IS_GET(cmd)) {
- /* Adjust for the actual length if it's variable,
- * avoid leaking kernel bits outside.
- */
- if (!(descr->get_args & IW_PRIV_SIZE_FIXED))
- extra_size = adjust_priv_size(descr->get_args, iwp);
-
- if (copy_to_user(iwp->pointer, extra, extra_size))
- err = -EFAULT;
- }
-
-out:
- kfree(extra);
- return err;
-}
-
-static int ioctl_private_call(struct net_device *dev, struct iwreq *iwr,
- unsigned int cmd, struct iw_request_info *info,
- iw_handler handler)
+int call_commit_handler(struct net_device *dev)
{
- int extra_size = 0, ret = -EINVAL;
- const struct iw_priv_args *descr;
-
- extra_size = get_priv_descr_and_size(dev, cmd, &descr);
-
- /* Check if we have a pointer to user space data or not. */
- if (extra_size == 0) {
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, info, &(iwr->u), (char *) &(iwr->u));
- } else {
- ret = ioctl_private_iw_point(&iwr->u.data, cmd, descr,
- handler, dev, info, extra_size);
- }
-
- /* Call commit handler if needed and defined */
- if (ret == -EIWCOMMIT)
- ret = call_commit_handler(dev);
-
- return ret;
+#ifdef CONFIG_WIRELESS_EXT
+ if ((netif_running(dev)) &&
+ (dev->wireless_handlers->standard[0] != NULL))
+ /* Call the commit handler on the driver */
+ return dev->wireless_handlers->standard[0](dev, NULL,
+ NULL, NULL);
+ else
+ return 0; /* Command completed successfully */
+#else
+ /* cfg80211 has no commit */
+ return 0;
+#endif
}
-/* ---------------------------------------------------------------- */
-typedef int (*wext_ioctl_func)(struct net_device *, struct iwreq *,
- unsigned int, struct iw_request_info *,
- iw_handler);
-
/*
* Main IOCTl dispatcher.
* Check the type of IOCTL and call the appropriate wrapper...
@@ -1103,9 +882,11 @@ static int wireless_process_ioctl(struct net *net, struct ifreq *ifr,
return standard(dev, iwr, cmd, info,
&iw_handler_get_iwstats);
+#ifdef CONFIG_WEXT_PRIV
if (cmd == SIOCGIWPRIV && dev->wireless_handlers)
return standard(dev, iwr, cmd, info,
- &iw_handler_get_private);
+ iw_handler_get_private);
+#endif
/* Basic check */
if (!netif_device_present(dev))
@@ -1117,7 +898,7 @@ static int wireless_process_ioctl(struct net *net, struct ifreq *ifr,
/* Standard and private are not the same */
if (cmd < SIOCIWFIRSTPRIV)
return standard(dev, iwr, cmd, info, handler);
- else
+ else if (private)
return private(dev, iwr, cmd, info, handler);
}
/* Old driver API : call driver ioctl handler */
@@ -1131,8 +912,9 @@ static int wireless_process_ioctl(struct net *net, struct ifreq *ifr,
*/
static int wext_permission_check(unsigned int cmd)
{
- if ((IW_IS_SET(cmd) || cmd == SIOCGIWENCODE || cmd == SIOCGIWENCODEEXT)
- && !capable(CAP_NET_ADMIN))
+ if ((IW_IS_SET(cmd) || cmd == SIOCGIWENCODE ||
+ cmd == SIOCGIWENCODEEXT) &&
+ !capable(CAP_NET_ADMIN))
return -EPERM;
return 0;
@@ -1157,6 +939,50 @@ static int wext_ioctl_dispatch(struct net *net, struct ifreq *ifr,
return ret;
}
+/*
+ * Wrapper to call a standard Wireless Extension handler.
+ * We do various checks and also take care of moving data between
+ * user space and kernel space.
+ */
+static int ioctl_standard_call(struct net_device * dev,
+ struct iwreq *iwr,
+ unsigned int cmd,
+ struct iw_request_info *info,
+ iw_handler handler)
+{
+ const struct iw_ioctl_description * descr;
+ int ret = -EINVAL;
+
+ /* Get the description of the IOCTL */
+ if ((cmd - SIOCIWFIRST) >= standard_ioctl_num)
+ return -EOPNOTSUPP;
+ descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
+
+ /* Check if we have a pointer to user space data or not */
+ if (descr->header_type != IW_HEADER_TYPE_POINT) {
+
+ /* No extra arguments. Trivial to handle */
+ ret = handler(dev, info, &(iwr->u), NULL);
+
+ /* Generate an event to notify listeners of the change */
+ if ((descr->flags & IW_DESCR_FLAG_EVENT) &&
+ ((ret == 0) || (ret == -EIWCOMMIT)))
+ wireless_send_event(dev, cmd, &(iwr->u), NULL);
+ } else {
+ ret = ioctl_standard_iw_point(&iwr->u.data, cmd, descr,
+ handler, dev, info);
+ }
+
+ /* Call commit handler if needed and defined */
+ if (ret == -EIWCOMMIT)
+ ret = call_commit_handler(dev);
+
+ /* Here, we will generate the appropriate event if needed */
+
+ return ret;
+}
+
+
int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd,
void __user *arg)
{
@@ -1205,43 +1031,6 @@ static int compat_standard_call(struct net_device *dev,
return err;
}
-static int compat_private_call(struct net_device *dev, struct iwreq *iwr,
- unsigned int cmd, struct iw_request_info *info,
- iw_handler handler)
-{
- const struct iw_priv_args *descr;
- int ret, extra_size;
-
- extra_size = get_priv_descr_and_size(dev, cmd, &descr);
-
- /* Check if we have a pointer to user space data or not. */
- if (extra_size == 0) {
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, info, &(iwr->u), (char *) &(iwr->u));
- } else {
- struct compat_iw_point *iwp_compat;
- struct iw_point iwp;
-
- iwp_compat = (struct compat_iw_point *) &iwr->u.data;
- iwp.pointer = compat_ptr(iwp_compat->pointer);
- iwp.length = iwp_compat->length;
- iwp.flags = iwp_compat->flags;
-
- ret = ioctl_private_iw_point(&iwp, cmd, descr,
- handler, dev, info, extra_size);
-
- iwp_compat->pointer = ptr_to_compat(iwp.pointer);
- iwp_compat->length = iwp.length;
- iwp_compat->flags = iwp.flags;
- }
-
- /* Call commit handler if needed and defined */
- if (ret == -EIWCOMMIT)
- ret = call_commit_handler(dev);
-
- return ret;
-}
-
int compat_wext_handle_ioctl(struct net *net, unsigned int cmd,
unsigned long arg)
{
@@ -1274,502 +1063,3 @@ int compat_wext_handle_ioctl(struct net *net, unsigned int cmd,
return ret;
}
#endif
-
-static int __net_init wext_pernet_init(struct net *net)
-{
- skb_queue_head_init(&net->wext_nlevents);
- return 0;
-}
-
-static void __net_exit wext_pernet_exit(struct net *net)
-{
- skb_queue_purge(&net->wext_nlevents);
-}
-
-static struct pernet_operations wext_pernet_ops = {
- .init = wext_pernet_init,
- .exit = wext_pernet_exit,
-};
-
-static int __init wireless_nlevent_init(void)
-{
- return register_pernet_subsys(&wext_pernet_ops);
-}
-
-subsys_initcall(wireless_nlevent_init);
-
-/* Process events generated by the wireless layer or the driver. */
-static void wireless_nlevent_process(struct work_struct *work)
-{
- struct sk_buff *skb;
- struct net *net;
-
- rtnl_lock();
-
- for_each_net(net) {
- while ((skb = skb_dequeue(&net->wext_nlevents)))
- rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL,
- GFP_KERNEL);
- }
-
- rtnl_unlock();
-}
-
-static DECLARE_WORK(wireless_nlevent_work, wireless_nlevent_process);
-
-static struct nlmsghdr *rtnetlink_ifinfo_prep(struct net_device *dev,
- struct sk_buff *skb)
-{
- struct ifinfomsg *r;
- struct nlmsghdr *nlh;
-
- nlh = nlmsg_put(skb, 0, 0, RTM_NEWLINK, sizeof(*r), 0);
- if (!nlh)
- return NULL;
-
- r = nlmsg_data(nlh);
- r->ifi_family = AF_UNSPEC;
- r->__ifi_pad = 0;
- r->ifi_type = dev->type;
- r->ifi_index = dev->ifindex;
- r->ifi_flags = dev_get_flags(dev);
- r->ifi_change = 0; /* Wireless changes don't affect those flags */
-
- NLA_PUT_STRING(skb, IFLA_IFNAME, dev->name);
-
- return nlh;
- nla_put_failure:
- nlmsg_cancel(skb, nlh);
- return NULL;
-}
-
-
-/*
- * Main event dispatcher. Called from other parts and drivers.
- * Send the event on the appropriate channels.
- * May be called from interrupt context.
- */
-void wireless_send_event(struct net_device * dev,
- unsigned int cmd,
- union iwreq_data * wrqu,
- const char * extra)
-{
- const struct iw_ioctl_description * descr = NULL;
- int extra_len = 0;
- struct iw_event *event; /* Mallocated whole event */
- int event_len; /* Its size */
- int hdr_len; /* Size of the event header */
- int wrqu_off = 0; /* Offset in wrqu */
- /* Don't "optimise" the following variable, it will crash */
- unsigned cmd_index; /* *MUST* be unsigned */
- struct sk_buff *skb;
- struct nlmsghdr *nlh;
- struct nlattr *nla;
-#ifdef CONFIG_COMPAT
- struct __compat_iw_event *compat_event;
- struct compat_iw_point compat_wrqu;
- struct sk_buff *compskb;
-#endif
-
- /*
- * Nothing in the kernel sends scan events with data, be safe.
- * This is necessary because we cannot fix up scan event data
- * for compat, due to being contained in 'extra', but normally
- * applications are required to retrieve the scan data anyway
- * and no data is included in the event, this codifies that
- * practice.
- */
- if (WARN_ON(cmd == SIOCGIWSCAN && extra))
- extra = NULL;
-
- /* Get the description of the Event */
- if (cmd <= SIOCIWLAST) {
- cmd_index = cmd - SIOCIWFIRST;
- if (cmd_index < standard_ioctl_num)
- descr = &(standard_ioctl[cmd_index]);
- } else {
- cmd_index = cmd - IWEVFIRST;
- if (cmd_index < standard_event_num)
- descr = &(standard_event[cmd_index]);
- }
- /* Don't accept unknown events */
- if (descr == NULL) {
- /* Note : we don't return an error to the driver, because
- * the driver would not know what to do about it. It can't
- * return an error to the user, because the event is not
- * initiated by a user request.
- * The best the driver could do is to log an error message.
- * We will do it ourselves instead...
- */
- printk(KERN_ERR "%s (WE) : Invalid/Unknown Wireless Event (0x%04X)\n",
- dev->name, cmd);
- return;
- }
-
- /* Check extra parameters and set extra_len */
- if (descr->header_type == IW_HEADER_TYPE_POINT) {
- /* Check if number of token fits within bounds */
- if (wrqu->data.length > descr->max_tokens) {
- printk(KERN_ERR "%s (WE) : Wireless Event too big (%d)\n", dev->name, wrqu->data.length);
- return;
- }
- if (wrqu->data.length < descr->min_tokens) {
- printk(KERN_ERR "%s (WE) : Wireless Event too small (%d)\n", dev->name, wrqu->data.length);
- return;
- }
- /* Calculate extra_len - extra is NULL for restricted events */
- if (extra != NULL)
- extra_len = wrqu->data.length * descr->token_size;
- /* Always at an offset in wrqu */
- wrqu_off = IW_EV_POINT_OFF;
- }
-
- /* Total length of the event */
- hdr_len = event_type_size[descr->header_type];
- event_len = hdr_len + extra_len;
-
- /*
- * The problem for 64/32 bit.
- *
- * On 64-bit, a regular event is laid out as follows:
- * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
- * | event.len | event.cmd | p a d d i n g |
- * | wrqu data ... (with the correct size) |
- *
- * This padding exists because we manipulate event->u,
- * and 'event' is not packed.
- *
- * An iw_point event is laid out like this instead:
- * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
- * | event.len | event.cmd | p a d d i n g |
- * | iwpnt.len | iwpnt.flg | p a d d i n g |
- * | extra data ...
- *
- * The second padding exists because struct iw_point is extended,
- * but this depends on the platform...
- *
- * On 32-bit, all the padding shouldn't be there.
- */
-
- skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
- if (!skb)
- return;
-
- /* Send via the RtNetlink event channel */
- nlh = rtnetlink_ifinfo_prep(dev, skb);
- if (WARN_ON(!nlh)) {
- kfree_skb(skb);
- return;
- }
-
- /* Add the wireless events in the netlink packet */
- nla = nla_reserve(skb, IFLA_WIRELESS, event_len);
- if (!nla) {
- kfree_skb(skb);
- return;
- }
- event = nla_data(nla);
-
- /* Fill event - first clear to avoid data leaking */
- memset(event, 0, hdr_len);
- event->len = event_len;
- event->cmd = cmd;
- memcpy(&event->u, ((char *) wrqu) + wrqu_off, hdr_len - IW_EV_LCP_LEN);
- if (extra_len)
- memcpy(((char *) event) + hdr_len, extra, extra_len);
-
- nlmsg_end(skb, nlh);
-#ifdef CONFIG_COMPAT
- hdr_len = compat_event_type_size[descr->header_type];
- event_len = hdr_len + extra_len;
-
- compskb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
- if (!compskb) {
- kfree_skb(skb);
- return;
- }
-
- /* Send via the RtNetlink event channel */
- nlh = rtnetlink_ifinfo_prep(dev, compskb);
- if (WARN_ON(!nlh)) {
- kfree_skb(skb);
- kfree_skb(compskb);
- return;
- }
-
- /* Add the wireless events in the netlink packet */
- nla = nla_reserve(compskb, IFLA_WIRELESS, event_len);
- if (!nla) {
- kfree_skb(skb);
- kfree_skb(compskb);
- return;
- }
- compat_event = nla_data(nla);
-
- compat_event->len = event_len;
- compat_event->cmd = cmd;
- if (descr->header_type == IW_HEADER_TYPE_POINT) {
- compat_wrqu.length = wrqu->data.length;
- compat_wrqu.flags = wrqu->data.flags;
- memcpy(&compat_event->pointer,
- ((char *) &compat_wrqu) + IW_EV_COMPAT_POINT_OFF,
- hdr_len - IW_EV_COMPAT_LCP_LEN);
- if (extra_len)
- memcpy(((char *) compat_event) + hdr_len,
- extra, extra_len);
- } else {
- /* extra_len must be zero, so no if (extra) needed */
- memcpy(&compat_event->pointer, wrqu,
- hdr_len - IW_EV_COMPAT_LCP_LEN);
- }
-
- nlmsg_end(compskb, nlh);
-
- skb_shinfo(skb)->frag_list = compskb;
-#endif
- skb_queue_tail(&dev_net(dev)->wext_nlevents, skb);
- schedule_work(&wireless_nlevent_work);
-}
-EXPORT_SYMBOL(wireless_send_event);
-
-/********************** ENHANCED IWSPY SUPPORT **********************/
-/*
- * In the old days, the driver was handling spy support all by itself.
- * Now, the driver can delegate this task to Wireless Extensions.
- * It needs to use those standard spy iw_handler in struct iw_handler_def,
- * push data to us via wireless_spy_update() and include struct iw_spy_data
- * in its private part (and export it in net_device->wireless_data->spy_data).
- * One of the main advantage of centralising spy support here is that
- * it becomes much easier to improve and extend it without having to touch
- * the drivers. One example is the addition of the Spy-Threshold events.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Return the pointer to the spy data in the driver.
- * Because this is called on the Rx path via wireless_spy_update(),
- * we want it to be efficient...
- */
-static inline struct iw_spy_data *get_spydata(struct net_device *dev)
-{
- /* This is the new way */
- if (dev->wireless_data)
- return dev->wireless_data->spy_data;
- return NULL;
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : set Spy List
- */
-int iw_handler_set_spy(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct sockaddr * address = (struct sockaddr *) extra;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- /* Disable spy collection while we copy the addresses.
- * While we copy addresses, any call to wireless_spy_update()
- * will NOP. This is OK, as anyway the addresses are changing. */
- spydata->spy_number = 0;
-
- /* We want to operate without locking, because wireless_spy_update()
- * most likely will happen in the interrupt handler, and therefore
- * have its own locking constraints and needs performance.
- * The rtnl_lock() make sure we don't race with the other iw_handlers.
- * This make sure wireless_spy_update() "see" that the spy list
- * is temporarily disabled. */
- smp_wmb();
-
- /* Are there are addresses to copy? */
- if (wrqu->data.length > 0) {
- int i;
-
- /* Copy addresses */
- for (i = 0; i < wrqu->data.length; i++)
- memcpy(spydata->spy_address[i], address[i].sa_data,
- ETH_ALEN);
- /* Reset stats */
- memset(spydata->spy_stat, 0,
- sizeof(struct iw_quality) * IW_MAX_SPY);
- }
-
- /* Make sure above is updated before re-enabling */
- smp_wmb();
-
- /* Enable addresses */
- spydata->spy_number = wrqu->data.length;
-
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_set_spy);
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : get Spy List
- */
-int iw_handler_get_spy(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct sockaddr * address = (struct sockaddr *) extra;
- int i;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- wrqu->data.length = spydata->spy_number;
-
- /* Copy addresses. */
- for (i = 0; i < spydata->spy_number; i++) {
- memcpy(address[i].sa_data, spydata->spy_address[i], ETH_ALEN);
- address[i].sa_family = AF_UNIX;
- }
- /* Copy stats to the user buffer (just after). */
- if (spydata->spy_number > 0)
- memcpy(extra + (sizeof(struct sockaddr) *spydata->spy_number),
- spydata->spy_stat,
- sizeof(struct iw_quality) * spydata->spy_number);
- /* Reset updated flags. */
- for (i = 0; i < spydata->spy_number; i++)
- spydata->spy_stat[i].updated &= ~IW_QUAL_ALL_UPDATED;
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_get_spy);
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : set spy threshold
- */
-int iw_handler_set_thrspy(struct net_device * dev,
- struct iw_request_info *info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- /* Just do it */
- memcpy(&(spydata->spy_thr_low), &(threshold->low),
- 2 * sizeof(struct iw_quality));
-
- /* Clear flag */
- memset(spydata->spy_thr_under, '\0', sizeof(spydata->spy_thr_under));
-
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_set_thrspy);
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : get spy threshold
- */
-int iw_handler_get_thrspy(struct net_device * dev,
- struct iw_request_info *info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- /* Just do it */
- memcpy(&(threshold->low), &(spydata->spy_thr_low),
- 2 * sizeof(struct iw_quality));
-
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_get_thrspy);
-
-/*------------------------------------------------------------------*/
-/*
- * Prepare and send a Spy Threshold event
- */
-static void iw_send_thrspy_event(struct net_device * dev,
- struct iw_spy_data * spydata,
- unsigned char * address,
- struct iw_quality * wstats)
-{
- union iwreq_data wrqu;
- struct iw_thrspy threshold;
-
- /* Init */
- wrqu.data.length = 1;
- wrqu.data.flags = 0;
- /* Copy address */
- memcpy(threshold.addr.sa_data, address, ETH_ALEN);
- threshold.addr.sa_family = ARPHRD_ETHER;
- /* Copy stats */
- memcpy(&(threshold.qual), wstats, sizeof(struct iw_quality));
- /* Copy also thresholds */
- memcpy(&(threshold.low), &(spydata->spy_thr_low),
- 2 * sizeof(struct iw_quality));
-
- /* Send event to user space */
- wireless_send_event(dev, SIOCGIWTHRSPY, &wrqu, (char *) &threshold);
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Call for the driver to update the spy data.
- * For now, the spy data is a simple array. As the size of the array is
- * small, this is good enough. If we wanted to support larger number of
- * spy addresses, we should use something more efficient...
- */
-void wireless_spy_update(struct net_device * dev,
- unsigned char * address,
- struct iw_quality * wstats)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- int i;
- int match = -1;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return;
-
- /* Update all records that match */
- for (i = 0; i < spydata->spy_number; i++)
- if (!compare_ether_addr(address, spydata->spy_address[i])) {
- memcpy(&(spydata->spy_stat[i]), wstats,
- sizeof(struct iw_quality));
- match = i;
- }
-
- /* Generate an event if we cross the spy threshold.
- * To avoid event storms, we have a simple hysteresis : we generate
- * event only when we go under the low threshold or above the
- * high threshold. */
- if (match >= 0) {
- if (spydata->spy_thr_under[match]) {
- if (wstats->level > spydata->spy_thr_high.level) {
- spydata->spy_thr_under[match] = 0;
- iw_send_thrspy_event(dev, spydata,
- address, wstats);
- }
- } else {
- if (wstats->level < spydata->spy_thr_low.level) {
- spydata->spy_thr_under[match] = 1;
- iw_send_thrspy_event(dev, spydata,
- address, wstats);
- }
- }
- }
-}
-EXPORT_SYMBOL(wireless_spy_update);
diff --git a/net/wireless/wext-priv.c b/net/wireless/wext-priv.c
new file mode 100644
index 000000000000..a3c2277de9e5
--- /dev/null
+++ b/net/wireless/wext-priv.c
@@ -0,0 +1,248 @@
+/*
+ * This file implement the Wireless Extensions priv API.
+ *
+ * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
+ * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * (As all part of the Linux kernel, this file is GPL)
+ */
+#include <linux/wireless.h>
+#include <linux/netdevice.h>
+#include <net/iw_handler.h>
+#include <net/wext.h>
+
+int iw_handler_get_private(struct net_device * dev,
+ struct iw_request_info * info,
+ union iwreq_data * wrqu,
+ char * extra)
+{
+ /* Check if the driver has something to export */
+ if ((dev->wireless_handlers->num_private_args == 0) ||
+ (dev->wireless_handlers->private_args == NULL))
+ return -EOPNOTSUPP;
+
+ /* Check if there is enough buffer up there */
+ if (wrqu->data.length < dev->wireless_handlers->num_private_args) {
+ /* User space can't know in advance how large the buffer
+ * needs to be. Give it a hint, so that we can support
+ * any size buffer we want somewhat efficiently... */
+ wrqu->data.length = dev->wireless_handlers->num_private_args;
+ return -E2BIG;
+ }
+
+ /* Set the number of available ioctls. */
+ wrqu->data.length = dev->wireless_handlers->num_private_args;
+
+ /* Copy structure to the user buffer. */
+ memcpy(extra, dev->wireless_handlers->private_args,
+ sizeof(struct iw_priv_args) * wrqu->data.length);
+
+ return 0;
+}
+
+/* Size (in bytes) of the various private data types */
+static const char iw_priv_type_size[] = {
+ 0, /* IW_PRIV_TYPE_NONE */
+ 1, /* IW_PRIV_TYPE_BYTE */
+ 1, /* IW_PRIV_TYPE_CHAR */
+ 0, /* Not defined */
+ sizeof(__u32), /* IW_PRIV_TYPE_INT */
+ sizeof(struct iw_freq), /* IW_PRIV_TYPE_FLOAT */
+ sizeof(struct sockaddr), /* IW_PRIV_TYPE_ADDR */
+ 0, /* Not defined */
+};
+
+static int get_priv_size(__u16 args)
+{
+ int num = args & IW_PRIV_SIZE_MASK;
+ int type = (args & IW_PRIV_TYPE_MASK) >> 12;
+
+ return num * iw_priv_type_size[type];
+}
+
+static int adjust_priv_size(__u16 args, struct iw_point *iwp)
+{
+ int num = iwp->length;
+ int max = args & IW_PRIV_SIZE_MASK;
+ int type = (args & IW_PRIV_TYPE_MASK) >> 12;
+
+ /* Make sure the driver doesn't goof up */
+ if (max < num)
+ num = max;
+
+ return num * iw_priv_type_size[type];
+}
+
+/*
+ * Wrapper to call a private Wireless Extension handler.
+ * We do various checks and also take care of moving data between
+ * user space and kernel space.
+ * It's not as nice and slimline as the standard wrapper. The cause
+ * is struct iw_priv_args, which was not really designed for the
+ * job we are going here.
+ *
+ * IMPORTANT : This function prevent to set and get data on the same
+ * IOCTL and enforce the SET/GET convention. Not doing it would be
+ * far too hairy...
+ * If you need to set and get data at the same time, please don't use
+ * a iw_handler but process it in your ioctl handler (i.e. use the
+ * old driver API).
+ */
+static int get_priv_descr_and_size(struct net_device *dev, unsigned int cmd,
+ const struct iw_priv_args **descrp)
+{
+ const struct iw_priv_args *descr;
+ int i, extra_size;
+
+ descr = NULL;
+ for (i = 0; i < dev->wireless_handlers->num_private_args; i++) {
+ if (cmd == dev->wireless_handlers->private_args[i].cmd) {
+ descr = &dev->wireless_handlers->private_args[i];
+ break;
+ }
+ }
+
+ extra_size = 0;
+ if (descr) {
+ if (IW_IS_SET(cmd)) {
+ int offset = 0; /* For sub-ioctls */
+ /* Check for sub-ioctl handler */
+ if (descr->name[0] == '\0')
+ /* Reserve one int for sub-ioctl index */
+ offset = sizeof(__u32);
+
+ /* Size of set arguments */
+ extra_size = get_priv_size(descr->set_args);
+
+ /* Does it fits in iwr ? */
+ if ((descr->set_args & IW_PRIV_SIZE_FIXED) &&
+ ((extra_size + offset) <= IFNAMSIZ))
+ extra_size = 0;
+ } else {
+ /* Size of get arguments */
+ extra_size = get_priv_size(descr->get_args);
+
+ /* Does it fits in iwr ? */
+ if ((descr->get_args & IW_PRIV_SIZE_FIXED) &&
+ (extra_size <= IFNAMSIZ))
+ extra_size = 0;
+ }
+ }
+ *descrp = descr;
+ return extra_size;
+}
+
+static int ioctl_private_iw_point(struct iw_point *iwp, unsigned int cmd,
+ const struct iw_priv_args *descr,
+ iw_handler handler, struct net_device *dev,
+ struct iw_request_info *info, int extra_size)
+{
+ char *extra;
+ int err;
+
+ /* Check what user space is giving us */
+ if (IW_IS_SET(cmd)) {
+ if (!iwp->pointer && iwp->length != 0)
+ return -EFAULT;
+
+ if (iwp->length > (descr->set_args & IW_PRIV_SIZE_MASK))
+ return -E2BIG;
+ } else if (!iwp->pointer)
+ return -EFAULT;
+
+ extra = kmalloc(extra_size, GFP_KERNEL);
+ if (!extra)
+ return -ENOMEM;
+
+ /* If it is a SET, get all the extra data in here */
+ if (IW_IS_SET(cmd) && (iwp->length != 0)) {
+ if (copy_from_user(extra, iwp->pointer, extra_size)) {
+ err = -EFAULT;
+ goto out;
+ }
+ }
+
+ /* Call the handler */
+ err = handler(dev, info, (union iwreq_data *) iwp, extra);
+
+ /* If we have something to return to the user */
+ if (!err && IW_IS_GET(cmd)) {
+ /* Adjust for the actual length if it's variable,
+ * avoid leaking kernel bits outside.
+ */
+ if (!(descr->get_args & IW_PRIV_SIZE_FIXED))
+ extra_size = adjust_priv_size(descr->get_args, iwp);
+
+ if (copy_to_user(iwp->pointer, extra, extra_size))
+ err = -EFAULT;
+ }
+
+out:
+ kfree(extra);
+ return err;
+}
+
+int ioctl_private_call(struct net_device *dev, struct iwreq *iwr,
+ unsigned int cmd, struct iw_request_info *info,
+ iw_handler handler)
+{
+ int extra_size = 0, ret = -EINVAL;
+ const struct iw_priv_args *descr;
+
+ extra_size = get_priv_descr_and_size(dev, cmd, &descr);
+
+ /* Check if we have a pointer to user space data or not. */
+ if (extra_size == 0) {
+ /* No extra arguments. Trivial to handle */
+ ret = handler(dev, info, &(iwr->u), (char *) &(iwr->u));
+ } else {
+ ret = ioctl_private_iw_point(&iwr->u.data, cmd, descr,
+ handler, dev, info, extra_size);
+ }
+
+ /* Call commit handler if needed and defined */
+ if (ret == -EIWCOMMIT)
+ ret = call_commit_handler(dev);
+
+ return ret;
+}
+
+#ifdef CONFIG_COMPAT
+int compat_private_call(struct net_device *dev, struct iwreq *iwr,
+ unsigned int cmd, struct iw_request_info *info,
+ iw_handler handler)
+{
+ const struct iw_priv_args *descr;
+ int ret, extra_size;
+
+ extra_size = get_priv_descr_and_size(dev, cmd, &descr);
+
+ /* Check if we have a pointer to user space data or not. */
+ if (extra_size == 0) {
+ /* No extra arguments. Trivial to handle */
+ ret = handler(dev, info, &(iwr->u), (char *) &(iwr->u));
+ } else {
+ struct compat_iw_point *iwp_compat;
+ struct iw_point iwp;
+
+ iwp_compat = (struct compat_iw_point *) &iwr->u.data;
+ iwp.pointer = compat_ptr(iwp_compat->pointer);
+ iwp.length = iwp_compat->length;
+ iwp.flags = iwp_compat->flags;
+
+ ret = ioctl_private_iw_point(&iwp, cmd, descr,
+ handler, dev, info, extra_size);
+
+ iwp_compat->pointer = ptr_to_compat(iwp.pointer);
+ iwp_compat->length = iwp.length;
+ iwp_compat->flags = iwp.flags;
+ }
+
+ /* Call commit handler if needed and defined */
+ if (ret == -EIWCOMMIT)
+ ret = call_commit_handler(dev);
+
+ return ret;
+}
+#endif
diff --git a/net/wireless/wext-proc.c b/net/wireless/wext-proc.c
new file mode 100644
index 000000000000..273a7f77c834
--- /dev/null
+++ b/net/wireless/wext-proc.c
@@ -0,0 +1,155 @@
+/*
+ * This file implement the Wireless Extensions proc API.
+ *
+ * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
+ * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
+ *
+ * (As all part of the Linux kernel, this file is GPL)
+ */
+
+/*
+ * The /proc/net/wireless file is a human readable user-space interface
+ * exporting various wireless specific statistics from the wireless devices.
+ * This is the most popular part of the Wireless Extensions ;-)
+ *
+ * This interface is a pure clone of /proc/net/dev (in net/core/dev.c).
+ * The content of the file is basically the content of "struct iw_statistics".
+ */
+
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/wireless.h>
+#include <linux/netdevice.h>
+#include <linux/rtnetlink.h>
+#include <net/iw_handler.h>
+#include <net/wext.h>
+
+
+static void wireless_seq_printf_stats(struct seq_file *seq,
+ struct net_device *dev)
+{
+ /* Get stats from the driver */
+ struct iw_statistics *stats = get_wireless_stats(dev);
+ static struct iw_statistics nullstats = {};
+
+ /* show device if it's wireless regardless of current stats */
+ if (!stats) {
+#ifdef CONFIG_WIRELESS_EXT
+ if (dev->wireless_handlers)
+ stats = &nullstats;
+#endif
+#ifdef CONFIG_CFG80211
+ if (dev->ieee80211_ptr)
+ stats = &nullstats;
+#endif
+ }
+
+ if (stats) {
+ seq_printf(seq, "%6s: %04x %3d%c %3d%c %3d%c %6d %6d %6d "
+ "%6d %6d %6d\n",
+ dev->name, stats->status, stats->qual.qual,
+ stats->qual.updated & IW_QUAL_QUAL_UPDATED
+ ? '.' : ' ',
+ ((__s32) stats->qual.level) -
+ ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
+ stats->qual.updated & IW_QUAL_LEVEL_UPDATED
+ ? '.' : ' ',
+ ((__s32) stats->qual.noise) -
+ ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
+ stats->qual.updated & IW_QUAL_NOISE_UPDATED
+ ? '.' : ' ',
+ stats->discard.nwid, stats->discard.code,
+ stats->discard.fragment, stats->discard.retries,
+ stats->discard.misc, stats->miss.beacon);
+
+ if (stats != &nullstats)
+ stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
+ }
+}
+
+/* ---------------------------------------------------------------- */
+/*
+ * Print info for /proc/net/wireless (print all entries)
+ */
+static int wireless_dev_seq_show(struct seq_file *seq, void *v)
+{
+ might_sleep();
+
+ if (v == SEQ_START_TOKEN)
+ seq_printf(seq, "Inter-| sta-| Quality | Discarded "
+ "packets | Missed | WE\n"
+ " face | tus | link level noise | nwid "
+ "crypt frag retry misc | beacon | %d\n",
+ WIRELESS_EXT);
+ else
+ wireless_seq_printf_stats(seq, v);
+ return 0;
+}
+
+static void *wireless_dev_seq_start(struct seq_file *seq, loff_t *pos)
+{
+ struct net *net = seq_file_net(seq);
+ loff_t off;
+ struct net_device *dev;
+
+ rtnl_lock();
+ if (!*pos)
+ return SEQ_START_TOKEN;
+
+ off = 1;
+ for_each_netdev(net, dev)
+ if (off++ == *pos)
+ return dev;
+ return NULL;
+}
+
+static void *wireless_dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct net *net = seq_file_net(seq);
+
+ ++*pos;
+
+ return v == SEQ_START_TOKEN ?
+ first_net_device(net) : next_net_device(v);
+}
+
+static void wireless_dev_seq_stop(struct seq_file *seq, void *v)
+{
+ rtnl_unlock();
+}
+
+static const struct seq_operations wireless_seq_ops = {
+ .start = wireless_dev_seq_start,
+ .next = wireless_dev_seq_next,
+ .stop = wireless_dev_seq_stop,
+ .show = wireless_dev_seq_show,
+};
+
+static int seq_open_wireless(struct inode *inode, struct file *file)
+{
+ return seq_open_net(inode, file, &wireless_seq_ops,
+ sizeof(struct seq_net_private));
+}
+
+static const struct file_operations wireless_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = seq_open_wireless,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_net,
+};
+
+int wext_proc_init(struct net *net)
+{
+ /* Create /proc/net/wireless entry */
+ if (!proc_net_fops_create(net, "wireless", S_IRUGO, &wireless_seq_fops))
+ return -ENOMEM;
+
+ return 0;
+}
+
+void wext_proc_exit(struct net *net)
+{
+ proc_net_remove(net, "wireless");
+}
diff --git a/net/wireless/wext-spy.c b/net/wireless/wext-spy.c
new file mode 100644
index 000000000000..6dcfe65a2d1a
--- /dev/null
+++ b/net/wireless/wext-spy.c
@@ -0,0 +1,231 @@
+/*
+ * This file implement the Wireless Extensions spy API.
+ *
+ * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
+ * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
+ *
+ * (As all part of the Linux kernel, this file is GPL)
+ */
+
+#include <linux/wireless.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <net/iw_handler.h>
+#include <net/arp.h>
+#include <net/wext.h>
+
+static inline struct iw_spy_data *get_spydata(struct net_device *dev)
+{
+ /* This is the new way */
+ if (dev->wireless_data)
+ return dev->wireless_data->spy_data;
+ return NULL;
+}
+
+int iw_handler_set_spy(struct net_device * dev,
+ struct iw_request_info * info,
+ union iwreq_data * wrqu,
+ char * extra)
+{
+ struct iw_spy_data * spydata = get_spydata(dev);
+ struct sockaddr * address = (struct sockaddr *) extra;
+
+ /* Make sure driver is not buggy or using the old API */
+ if (!spydata)
+ return -EOPNOTSUPP;
+
+ /* Disable spy collection while we copy the addresses.
+ * While we copy addresses, any call to wireless_spy_update()
+ * will NOP. This is OK, as anyway the addresses are changing. */
+ spydata->spy_number = 0;
+
+ /* We want to operate without locking, because wireless_spy_update()
+ * most likely will happen in the interrupt handler, and therefore
+ * have its own locking constraints and needs performance.
+ * The rtnl_lock() make sure we don't race with the other iw_handlers.
+ * This make sure wireless_spy_update() "see" that the spy list
+ * is temporarily disabled. */
+ smp_wmb();
+
+ /* Are there are addresses to copy? */
+ if (wrqu->data.length > 0) {
+ int i;
+
+ /* Copy addresses */
+ for (i = 0; i < wrqu->data.length; i++)
+ memcpy(spydata->spy_address[i], address[i].sa_data,
+ ETH_ALEN);
+ /* Reset stats */
+ memset(spydata->spy_stat, 0,
+ sizeof(struct iw_quality) * IW_MAX_SPY);
+ }
+
+ /* Make sure above is updated before re-enabling */
+ smp_wmb();
+
+ /* Enable addresses */
+ spydata->spy_number = wrqu->data.length;
+
+ return 0;
+}
+EXPORT_SYMBOL(iw_handler_set_spy);
+
+int iw_handler_get_spy(struct net_device * dev,
+ struct iw_request_info * info,
+ union iwreq_data * wrqu,
+ char * extra)
+{
+ struct iw_spy_data * spydata = get_spydata(dev);
+ struct sockaddr * address = (struct sockaddr *) extra;
+ int i;
+
+ /* Make sure driver is not buggy or using the old API */
+ if (!spydata)
+ return -EOPNOTSUPP;
+
+ wrqu->data.length = spydata->spy_number;
+
+ /* Copy addresses. */
+ for (i = 0; i < spydata->spy_number; i++) {
+ memcpy(address[i].sa_data, spydata->spy_address[i], ETH_ALEN);
+ address[i].sa_family = AF_UNIX;
+ }
+ /* Copy stats to the user buffer (just after). */
+ if (spydata->spy_number > 0)
+ memcpy(extra + (sizeof(struct sockaddr) *spydata->spy_number),
+ spydata->spy_stat,
+ sizeof(struct iw_quality) * spydata->spy_number);
+ /* Reset updated flags. */
+ for (i = 0; i < spydata->spy_number; i++)
+ spydata->spy_stat[i].updated &= ~IW_QUAL_ALL_UPDATED;
+ return 0;
+}
+EXPORT_SYMBOL(iw_handler_get_spy);
+
+/*------------------------------------------------------------------*/
+/*
+ * Standard Wireless Handler : set spy threshold
+ */
+int iw_handler_set_thrspy(struct net_device * dev,
+ struct iw_request_info *info,
+ union iwreq_data * wrqu,
+ char * extra)
+{
+ struct iw_spy_data * spydata = get_spydata(dev);
+ struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
+
+ /* Make sure driver is not buggy or using the old API */
+ if (!spydata)
+ return -EOPNOTSUPP;
+
+ /* Just do it */
+ memcpy(&(spydata->spy_thr_low), &(threshold->low),
+ 2 * sizeof(struct iw_quality));
+
+ /* Clear flag */
+ memset(spydata->spy_thr_under, '\0', sizeof(spydata->spy_thr_under));
+
+ return 0;
+}
+EXPORT_SYMBOL(iw_handler_set_thrspy);
+
+/*------------------------------------------------------------------*/
+/*
+ * Standard Wireless Handler : get spy threshold
+ */
+int iw_handler_get_thrspy(struct net_device * dev,
+ struct iw_request_info *info,
+ union iwreq_data * wrqu,
+ char * extra)
+{
+ struct iw_spy_data * spydata = get_spydata(dev);
+ struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
+
+ /* Make sure driver is not buggy or using the old API */
+ if (!spydata)
+ return -EOPNOTSUPP;
+
+ /* Just do it */
+ memcpy(&(threshold->low), &(spydata->spy_thr_low),
+ 2 * sizeof(struct iw_quality));
+
+ return 0;
+}
+EXPORT_SYMBOL(iw_handler_get_thrspy);
+
+/*------------------------------------------------------------------*/
+/*
+ * Prepare and send a Spy Threshold event
+ */
+static void iw_send_thrspy_event(struct net_device * dev,
+ struct iw_spy_data * spydata,
+ unsigned char * address,
+ struct iw_quality * wstats)
+{
+ union iwreq_data wrqu;
+ struct iw_thrspy threshold;
+
+ /* Init */
+ wrqu.data.length = 1;
+ wrqu.data.flags = 0;
+ /* Copy address */
+ memcpy(threshold.addr.sa_data, address, ETH_ALEN);
+ threshold.addr.sa_family = ARPHRD_ETHER;
+ /* Copy stats */
+ memcpy(&(threshold.qual), wstats, sizeof(struct iw_quality));
+ /* Copy also thresholds */
+ memcpy(&(threshold.low), &(spydata->spy_thr_low),
+ 2 * sizeof(struct iw_quality));
+
+ /* Send event to user space */
+ wireless_send_event(dev, SIOCGIWTHRSPY, &wrqu, (char *) &threshold);
+}
+
+/* ---------------------------------------------------------------- */
+/*
+ * Call for the driver to update the spy data.
+ * For now, the spy data is a simple array. As the size of the array is
+ * small, this is good enough. If we wanted to support larger number of
+ * spy addresses, we should use something more efficient...
+ */
+void wireless_spy_update(struct net_device * dev,
+ unsigned char * address,
+ struct iw_quality * wstats)
+{
+ struct iw_spy_data * spydata = get_spydata(dev);
+ int i;
+ int match = -1;
+
+ /* Make sure driver is not buggy or using the old API */
+ if (!spydata)
+ return;
+
+ /* Update all records that match */
+ for (i = 0; i < spydata->spy_number; i++)
+ if (!compare_ether_addr(address, spydata->spy_address[i])) {
+ memcpy(&(spydata->spy_stat[i]), wstats,
+ sizeof(struct iw_quality));
+ match = i;
+ }
+
+ /* Generate an event if we cross the spy threshold.
+ * To avoid event storms, we have a simple hysteresis : we generate
+ * event only when we go under the low threshold or above the
+ * high threshold. */
+ if (match >= 0) {
+ if (spydata->spy_thr_under[match]) {
+ if (wstats->level > spydata->spy_thr_high.level) {
+ spydata->spy_thr_under[match] = 0;
+ iw_send_thrspy_event(dev, spydata,
+ address, wstats);
+ }
+ } else {
+ if (wstats->level < spydata->spy_thr_low.level) {
+ spydata->spy_thr_under[match] = 1;
+ iw_send_thrspy_event(dev, spydata,
+ address, wstats);
+ }
+ }
+ }
+}
+EXPORT_SYMBOL(wireless_spy_update);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 02:22:13 +0100