#include "core.h"
#include "sysfs.h"
#include "debugfs.h"
+#include "wext-compat.h"
/* name for sysfs, %d is appended */
#define PHY_NAME "phy"
* only read the list, and that can happen quite
* often because we need to do it for each command */
LIST_HEAD(cfg80211_rdev_list);
+int cfg80211_rdev_list_generation;
/*
- * This is used to protect the cfg80211_rdev_list, cfg80211_regdomain,
- * country_ie_regdomain, the reg_beacon_list and the the last regulatory
- * request receipt (last_request).
+ * This is used to protect the cfg80211_rdev_list
*/
DEFINE_MUTEX(cfg80211_mutex);
if (info->attrs[NL80211_ATTR_IFINDEX]) {
ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
- dev = dev_get_by_index(&init_net, ifindex);
+ dev = dev_get_by_index(genl_info_net(info), ifindex);
if (dev) {
if (dev->ieee80211_ptr)
byifidx =
}
struct cfg80211_registered_device *
-cfg80211_get_dev_from_ifindex(int ifindex)
+cfg80211_get_dev_from_ifindex(struct net *net, int ifindex)
{
struct cfg80211_registered_device *rdev = ERR_PTR(-ENODEV);
struct net_device *dev;
mutex_lock(&cfg80211_mutex);
- dev = dev_get_by_index(&init_net, ifindex);
+ dev = dev_get_by_index(net, ifindex);
if (!dev)
goto out;
if (dev->ieee80211_ptr) {
return 0;
}
+int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
+ struct net *net)
+{
+ struct wireless_dev *wdev;
+ int err = 0;
+
+ if (!rdev->wiphy.netnsok)
+ return -EOPNOTSUPP;
+
+ list_for_each_entry(wdev, &rdev->netdev_list, list) {
+ wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
+ err = dev_change_net_namespace(wdev->netdev, net, "wlan%d");
+ if (err)
+ break;
+ wdev->netdev->features |= NETIF_F_NETNS_LOCAL;
+ }
+
+ if (err) {
+ /* failed -- clean up to old netns */
+ net = wiphy_net(&rdev->wiphy);
+
+ list_for_each_entry_continue_reverse(wdev, &rdev->netdev_list,
+ list) {
+ wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
+ err = dev_change_net_namespace(wdev->netdev, net,
+ "wlan%d");
+ WARN_ON(err);
+ wdev->netdev->features |= NETIF_F_NETNS_LOCAL;
+ }
+ }
+
+ wiphy_net_set(&rdev->wiphy, net);
+
+ return err;
+}
+
static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data)
{
struct cfg80211_registered_device *rdev = data;
ev->cr.req_ie, ev->cr.req_ie_len,
ev->cr.resp_ie, ev->cr.resp_ie_len,
ev->cr.status,
- ev->cr.status == WLAN_STATUS_SUCCESS);
+ ev->cr.status == WLAN_STATUS_SUCCESS,
+ NULL);
break;
case EVENT_ROAMED:
__cfg80211_roamed(wdev, ev->rm.bssid,
rdev->wiphy.dev.class = &ieee80211_class;
rdev->wiphy.dev.platform_data = rdev;
+ rdev->wiphy.ps_default = CONFIG_CFG80211_DEFAULT_PS_VALUE;
+
+ wiphy_net_set(&rdev->wiphy, &init_net);
+
rdev->rfkill_ops.set_block = cfg80211_rfkill_set_block;
rdev->rfkill = rfkill_alloc(dev_name(&rdev->wiphy.dev),
&rdev->wiphy.dev, RFKILL_TYPE_WLAN,
wiphy_update_regulatory(wiphy, NL80211_REGDOM_SET_BY_CORE);
list_add(&rdev->list, &cfg80211_rdev_list);
+ cfg80211_rdev_list_generation++;
mutex_unlock(&cfg80211_mutex);
* get to lock contention here if userspace issues a command
* that identified the hardware by wiphy index.
*/
- mutex_lock(&rdev->mtx);
- /* unlock again before freeing */
- mutex_unlock(&rdev->mtx);
+ cfg80211_lock_rdev(rdev);
+
+ if (WARN_ON(rdev->scan_req)) {
+ rdev->scan_req->aborted = true;
+ ___cfg80211_scan_done(rdev);
+ }
+
+ cfg80211_unlock_rdev(rdev);
cfg80211_debugfs_rdev_del(rdev);
reg_device_remove(wiphy);
list_del(&rdev->list);
+ cfg80211_rdev_list_generation++;
device_del(&rdev->wiphy.dev);
debugfs_remove(rdev->wiphy.debugfsdir);
mutex_unlock(&cfg80211_mutex);
+ flush_work(&rdev->scan_done_wk);
cancel_work_sync(&rdev->conn_work);
- cancel_work_sync(&rdev->scan_done_wk);
- kfree(rdev->scan_req);
flush_work(&rdev->event_work);
}
EXPORT_SYMBOL(wiphy_unregister);
switch (state) {
case NETDEV_REGISTER:
+ /*
+ * NB: cannot take rdev->mtx here because this may be
+ * called within code protected by it when interfaces
+ * are added with nl80211.
+ */
mutex_init(&wdev->mtx);
INIT_LIST_HEAD(&wdev->event_list);
spin_lock_init(&wdev->event_lock);
mutex_lock(&rdev->devlist_mtx);
list_add(&wdev->list, &rdev->netdev_list);
+ rdev->devlist_generation++;
+ /* can only change netns with wiphy */
+ dev->features |= NETIF_F_NETNS_LOCAL;
+
if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
"phy80211")) {
printk(KERN_ERR "wireless: failed to add phy80211 "
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;
wdev->wext.default_key = -1;
wdev->wext.default_mgmt_key = -1;
wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
- wdev->wext.ps = CONFIG_CFG80211_DEFAULT_PS_VALUE;
- wdev->wext.ps_timeout = 500;
+ wdev->wext.ps = wdev->wiphy->ps_default;
+ wdev->wext.ps_timeout = 100;
if (rdev->ops->set_power_mgmt)
if (rdev->ops->set_power_mgmt(wdev->wiphy, dev,
wdev->wext.ps,
case NETDEV_UP:
#ifdef CONFIG_WIRELESS_EXT
cfg80211_lock_rdev(rdev);
+ mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
switch (wdev->iftype) {
case NL80211_IFTYPE_ADHOC:
break;
}
wdev_unlock(wdev);
+ mutex_unlock(&rdev->devlist_mtx);
cfg80211_unlock_rdev(rdev);
#endif
break;
case NETDEV_UNREGISTER:
+ /*
+ * NB: cannot take rdev->mtx here because this may be
+ * called within code protected by it when interfaces
+ * are removed with nl80211.
+ */
mutex_lock(&rdev->devlist_mtx);
+ /*
+ * It is possible to get NETDEV_UNREGISTER
+ * multiple times. To detect that, check
+ * that the interface is still on the list
+ * of registered interfaces, and only then
+ * remove and clean it up.
+ */
if (!list_empty(&wdev->list)) {
sysfs_remove_link(&dev->dev.kobj, "phy80211");
list_del_init(&wdev->list);
- }
- mutex_unlock(&rdev->devlist_mtx);
- mutex_destroy(&wdev->mtx);
+ rdev->devlist_generation++;
+ mutex_destroy(&wdev->mtx);
#ifdef CONFIG_WIRELESS_EXT
- kfree(wdev->wext.keys);
+ kfree(wdev->wext.keys);
#endif
+ }
+ mutex_unlock(&rdev->devlist_mtx);
break;
case NETDEV_PRE_UP:
if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)))
.notifier_call = cfg80211_netdev_notifier_call,
};
-static int cfg80211_init(void)
+static void __net_exit cfg80211_pernet_exit(struct net *net)
+{
+ struct cfg80211_registered_device *rdev;
+
+ rtnl_lock();
+ mutex_lock(&cfg80211_mutex);
+ list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
+ if (net_eq(wiphy_net(&rdev->wiphy), net))
+ WARN_ON(cfg80211_switch_netns(rdev, &init_net));
+ }
+ mutex_unlock(&cfg80211_mutex);
+ rtnl_unlock();
+}
+
+static struct pernet_operations cfg80211_pernet_ops = {
+ .exit = cfg80211_pernet_exit,
+};
+
+static int __init cfg80211_init(void)
{
int err;
+ err = register_pernet_device(&cfg80211_pernet_ops);
+ if (err)
+ goto out_fail_pernet;
+
err = wiphy_sysfs_init();
if (err)
goto out_fail_sysfs;
out_fail_notifier:
wiphy_sysfs_exit();
out_fail_sysfs:
+ unregister_pernet_device(&cfg80211_pernet_ops);
+out_fail_pernet:
return err;
}
-
subsys_initcall(cfg80211_init);
static void cfg80211_exit(void)
unregister_netdevice_notifier(&cfg80211_netdev_notifier);
wiphy_sysfs_exit();
regulatory_exit();
+ unregister_pernet_device(&cfg80211_pernet_ops);
}
module_exit(cfg80211_exit);
git.openpandora.org / pandora-kernel.git / blobdiff