Release 4.11 net/wireless/core.c

/*
 * This is the linux wireless configuration interface.
 *
 * Copyright 2006-2010          Johannes Berg <johannes@sipsolutions.net>
 * Copyright 2013-2014  Intel Mobile Communications GmbH
 * Copyright 2015       Intel Deutschland GmbH
 */


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/if.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/nl80211.h>
#include <linux/debugfs.h>
#include <linux/notifier.h>
#include <linux/device.h>
#include <linux/etherdevice.h>
#include <linux/rtnetlink.h>
#include <linux/sched.h>
#include <net/genetlink.h>
#include <net/cfg80211.h>
#include "nl80211.h"
#include "core.h"
#include "sysfs.h"
#include "debugfs.h"
#include "wext-compat.h"
#include "rdev-ops.h"

/* name for sysfs, %d is appended */

#define PHY_NAME "phy"

MODULE_AUTHOR("Johannes Berg");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("wireless configuration support");

MODULE_ALIAS_GENL_FAMILY(NL80211_GENL_NAME);

/* RCU-protected (and RTNL for writers) */

LIST_HEAD(cfg80211_rdev_list);

int cfg80211_rdev_list_generation;

/* for debugfs */

static struct dentry *ieee80211_debugfs_dir;

/* for the cleanup, scan and event works */

struct workqueue_struct *cfg80211_wq;


static bool cfg80211_disable_40mhz_24ghz;
module_param(cfg80211_disable_40mhz_24ghz, bool, 0644);
MODULE_PARM_DESC(cfg80211_disable_40mhz_24ghz,
		 "Disable 40MHz support in the 2.4GHz band");



struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx)
{
	struct cfg80211_registered_device *result = NULL, *rdev;

	ASSERT_RTNL();

	list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
		if (rdev->wiphy_idx == wiphy_idx) {
			result = rdev;
			break;
		}
	}

	return result;
}

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int get_wiphy_idx(struct wiphy *wiphy)
{
	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);

	return rdev->wiphy_idx;
}

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struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx)
{
	struct cfg80211_registered_device *rdev;

	ASSERT_RTNL();

	rdev = cfg80211_rdev_by_wiphy_idx(wiphy_idx);
	if (!rdev)
		return NULL;
	return &rdev->wiphy;
}

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static int cfg80211_dev_check_name(struct cfg80211_registered_device *rdev,
				   const char *newname)
{
	struct cfg80211_registered_device *rdev2;
	int wiphy_idx, taken = -1, digits;

	ASSERT_RTNL();

	/* prohibit calling the thing phy%d when %d is not its number */
	sscanf(newname, PHY_NAME "%d%n", &wiphy_idx, &taken);
	if (taken == strlen(newname) && wiphy_idx != rdev->wiphy_idx) {
		/* count number of places needed to print wiphy_idx */
		digits = 1;
		while (wiphy_idx /= 10)
			digits++;
		/*
                 * deny the name if it is phy<idx> where <idx> is printed
                 * without leading zeroes. taken == strlen(newname) here
                 */
		if (taken == strlen(PHY_NAME) + digits)
			return -EINVAL;
	}

	/* Ensure another device does not already have this name. */
	list_for_each_entry(rdev2, &cfg80211_rdev_list, list)
		if (strcmp(newname, wiphy_name(&rdev2->wiphy)) == 0)
			return -EINVAL;

	return 0;
}

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Ben Greear
19
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1
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int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
			char *newname)
{
	int result;

	ASSERT_RTNL();

	/* Ignore nop renames */
	if (strcmp(newname, wiphy_name(&rdev->wiphy)) == 0)
		return 0;

	result = cfg80211_dev_check_name(rdev, newname);
	if (result < 0)
		return result;

	result = device_rename(&rdev->wiphy.dev, newname);
	if (result)
		return result;

	if (rdev->wiphy.debugfsdir &&
	    !debugfs_rename(rdev->wiphy.debugfsdir->d_parent,
			    rdev->wiphy.debugfsdir,
			    rdev->wiphy.debugfsdir->d_parent,
			    newname))
		pr_err("failed to rename debugfs dir to %s!\n", newname);

	nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);

	return 0;
}

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41
30.83%
1
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Eric W. Biedermann
15
11.28%
1
14.29%
Joe Perches
2
1.50%
1
14.29%
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int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
			  struct net *net)
{
	struct wireless_dev *wdev;
	int err = 0;

	if (!(rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK))
		return -EOPNOTSUPP;

	list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
		if (!wdev->netdev)
			continue;
		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->wiphy.wdev_list,
						     list) {
			if (!wdev->netdev)
				continue;
			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;
		}

		return err;
	}

	wiphy_net_set(&rdev->wiphy, net);

	err = device_rename(&rdev->wiphy.dev, dev_name(&rdev->wiphy.dev));
	WARN_ON(err);

	return 0;
}

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static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data)
{
	struct cfg80211_registered_device *rdev = data;

	rdev_rfkill_poll(rdev);
}

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void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
			      struct wireless_dev *wdev)
{
	ASSERT_RTNL();

	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_P2P_DEVICE))
		return;

	if (!wdev_running(wdev))
		return;

	rdev_stop_p2p_device(rdev, wdev);
	wdev->is_running = false;

	rdev->opencount--;

	if (rdev->scan_req && rdev->scan_req->wdev == wdev) {
		if (WARN_ON(!rdev->scan_req->notified))
			rdev->scan_req->info.aborted = true;
		___cfg80211_scan_done(rdev, false);
	}
}

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94.12%
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Arend Van Spriel
4
3.92%
1
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Avraham Stern
2
1.96%
1
14.29%
Total
102
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7
100.00%



void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
		       struct wireless_dev *wdev)
{
	ASSERT_RTNL();

	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_NAN))
		return;

	if (!wdev_running(wdev))
		return;

	rdev_stop_nan(rdev, wdev);
	wdev->is_running = false;

	rdev->opencount--;
}

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57
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void cfg80211_shutdown_all_interfaces(struct wiphy *wiphy)
{
	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
	struct wireless_dev *wdev;

	ASSERT_RTNL();

	list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
		if (wdev->netdev) {
			dev_close(wdev->netdev);
			continue;
		}
		/* otherwise, check iftype */
		switch (wdev->iftype) {
		case NL80211_IFTYPE_P2P_DEVICE:
			cfg80211_stop_p2p_device(rdev, wdev);
			break;
		case NL80211_IFTYPE_NAN:
			cfg80211_stop_nan(rdev, wdev);
			break;
		default:
			break;
		}
	}
}
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EXPORT_SYMBOL_GPL(cfg80211_shutdown_all_interfaces);



static int cfg80211_rfkill_set_block(void *data, bool blocked)
{
	struct cfg80211_registered_device *rdev = data;

	if (!blocked)
		return 0;

	rtnl_lock();
	cfg80211_shutdown_all_interfaces(&rdev->wiphy);
	rtnl_unlock();

	return 0;
}

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static void cfg80211_rfkill_sync_work(struct work_struct *work)
{
	struct cfg80211_registered_device *rdev;

	rdev = container_of(work, struct cfg80211_registered_device, rfkill_sync);
	cfg80211_rfkill_set_block(rdev, rfkill_blocked(rdev->rfkill));
}

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static void cfg80211_event_work(struct work_struct *work)
{
	struct cfg80211_registered_device *rdev;

	rdev = container_of(work, struct cfg80211_registered_device,
			    event_work);

	rtnl_lock();
	cfg80211_process_rdev_events(rdev);
	rtnl_unlock();
}

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void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev)
{
	struct cfg80211_iface_destroy *item;

	ASSERT_RTNL();

	spin_lock_irq(&rdev->destroy_list_lock);
	while ((item = list_first_entry_or_null(&rdev->destroy_list,
						struct cfg80211_iface_destroy,
						list))) {
		struct wireless_dev *wdev, *tmp;
		u32 nlportid = item->nlportid;

		list_del(&item->list);
		kfree(item);
		spin_unlock_irq(&rdev->destroy_list_lock);

		list_for_each_entry_safe(wdev, tmp,
					 &rdev->wiphy.wdev_list, list) {
			if (nlportid == wdev->owner_nlportid)
				rdev_del_virtual_intf(rdev, wdev);
		}

		spin_lock_irq(&rdev->destroy_list_lock);
	}
	spin_unlock_irq(&rdev->destroy_list_lock);
}

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static void cfg80211_destroy_iface_wk(struct work_struct *work)
{
	struct cfg80211_registered_device *rdev;

	rdev = container_of(work, struct cfg80211_registered_device,
			    destroy_work);

	rtnl_lock();
	cfg80211_destroy_ifaces(rdev);
	rtnl_unlock();
}

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static void cfg80211_sched_scan_stop_wk(struct work_struct *work)
{
	struct cfg80211_registered_device *rdev;

	rdev = container_of(work, struct cfg80211_registered_device,
			   sched_scan_stop_wk);

	rtnl_lock();

	__cfg80211_stop_sched_scan(rdev, false);

	rtnl_unlock();
}

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/* exported functions */



struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv,
			   const char *requested_name)
{
	static atomic_t wiphy_counter = ATOMIC_INIT(0);

	struct cfg80211_registered_device *rdev;
	int alloc_size;

	WARN_ON(ops->add_key && (!ops->del_key || !ops->set_default_key));
	WARN_ON(ops->auth && (!ops->assoc || !ops->deauth || !ops->disassoc));
	WARN_ON(ops->connect && !ops->disconnect);
	WARN_ON(ops->join_ibss && !ops->leave_ibss);
	WARN_ON(ops->add_virtual_intf && !ops->del_virtual_intf);
	WARN_ON(ops->add_station && !ops->del_station);
	WARN_ON(ops->add_mpath && !ops->del_mpath);
	WARN_ON(ops->join_mesh && !ops->leave_mesh);
	WARN_ON(ops->start_p2p_device && !ops->stop_p2p_device);
	WARN_ON(ops->start_ap && !ops->stop_ap);
	WARN_ON(ops->join_ocb && !ops->leave_ocb);
	WARN_ON(ops->suspend && !ops->resume);
	WARN_ON(ops->sched_scan_start && !ops->sched_scan_stop);
	WARN_ON(ops->remain_on_channel && !ops->cancel_remain_on_channel);
	WARN_ON(ops->tdls_channel_switch && !ops->tdls_cancel_channel_switch);
	WARN_ON(ops->add_tx_ts && !ops->del_tx_ts);

	alloc_size = sizeof(*rdev) + sizeof_priv;

	rdev = kzalloc(alloc_size, GFP_KERNEL);
	if (!rdev)
		return NULL;

	rdev->ops = ops;

	rdev->wiphy_idx = atomic_inc_return(&wiphy_counter);

	if (unlikely(rdev->wiphy_idx < 0)) {
		/* ugh, wrapped! */
		atomic_dec(&wiphy_counter);
		kfree(rdev);
		return NULL;
	}

	/* atomic_inc_return makes it start at 1, make it start at 0 */
	rdev->wiphy_idx--;

	/* give it a proper name */
	if (requested_name && requested_name[0]) {
		int rv;

		rtnl_lock();
		rv = cfg80211_dev_check_name(rdev, requested_name);

		if (rv < 0) {
			rtnl_unlock();
			goto use_default_name;
		}

		rv = dev_set_name(&rdev->wiphy.dev, "%s", requested_name);
		rtnl_unlock();
		if (rv)
			goto use_default_name;
	} else {
use_default_name:
		/* NOTE:  This is *probably* safe w/out holding rtnl because of
                 * the restrictions on phy names.  Probably this call could
                 * fail if some other part of the kernel (re)named a device
                 * phyX.  But, might should add some locking and check return
                 * value, and use a different name if this one exists?
                 */
		dev_set_name(&rdev->wiphy.dev, PHY_NAME "%d", rdev->wiphy_idx);
	}

	INIT_LIST_HEAD(&rdev->wiphy.wdev_list);
	INIT_LIST_HEAD(&rdev->beacon_registrations);
	spin_lock_init(&rdev->beacon_registrations_lock);
	spin_lock_init(&rdev->bss_lock);
	INIT_LIST_HEAD(&rdev->bss_list);
	INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done);
	INIT_WORK(&rdev->sched_scan_results_wk, __cfg80211_sched_scan_results);
	INIT_LIST_HEAD(&rdev->mlme_unreg);
	spin_lock_init(&rdev->mlme_unreg_lock);
	INIT_WORK(&rdev->mlme_unreg_wk, cfg80211_mlme_unreg_wk);
	INIT_DELAYED_WORK(&rdev->dfs_update_channels_wk,
			  cfg80211_dfs_channels_update_work);
#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;
	device_enable_async_suspend(&rdev->wiphy.dev);

	INIT_LIST_HEAD(&rdev->destroy_list);
	spin_lock_init(&rdev->destroy_list_lock);
	INIT_WORK(&rdev->destroy_work, cfg80211_destroy_iface_wk);
	INIT_WORK(&rdev->sched_scan_stop_wk, cfg80211_sched_scan_stop_wk);

#ifdef CONFIG_CFG80211_DEFAULT_PS
	rdev->wiphy.flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
#endif

	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,
				   &rdev->rfkill_ops, rdev);

	if (!rdev->rfkill) {
		kfree(rdev);
		return NULL;
	}

	INIT_WORK(&rdev->rfkill_sync, cfg80211_rfkill_sync_work);
	INIT_WORK(&rdev->conn_work, cfg80211_conn_work);
	INIT_WORK(&rdev->event_work, cfg80211_event_work);

	init_waitqueue_head(&rdev->dev_wait);

	/*
         * Initialize wiphy parameters to IEEE 802.11 MIB default values.
         * Fragmentation and RTS threshold are disabled by default with the
         * special -1 value.
         */
	rdev->wiphy.retry_short = 7;
	rdev->wiphy.retry_long = 4;
	rdev->wiphy.frag_threshold = (u32) -1;
	rdev->wiphy.rts_threshold = (u32) -1;
	rdev->wiphy.coverage_class = 0;

	rdev->wiphy.max_num_csa_counters = 1;

	rdev->wiphy.max_sched_scan_plans = 1;
	rdev->wiphy.max_sched_scan_plan_interval = U32_MAX;

	return &rdev->wiphy;
}
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94
11.69%
2
5.26%
Jouni Malinen
37
4.60%
1
2.63%
Avraham Stern
16
1.99%
1
2.63%
Fu Zhonghui
10
1.24%
1
2.63%
Simon Wunderlich
10
1.24%
1
2.63%
Jukka Rissanen
10
1.24%
1
2.63%
Luciano Coelho
10
1.24%
1
2.63%
Andrei Otcheretianski
8
1.00%
1
2.63%
Lukáš Turek
8
1.00%
1
2.63%
Cheng Renquan
7
0.87%
1
2.63%
Luis R. Rodriguez
2
0.25%
1
2.63%
Kay Sievers
2
0.25%
1
2.63%
David Kilroy
1
0.12%
1
2.63%
Total
804
100.00%
38
100.00%


EXPORT_SYMBOL(wiphy_new_nm);



static int wiphy_verify_combinations(struct wiphy *wiphy)
{
	const struct ieee80211_iface_combination *c;
	int i, j;

	for (i = 0; i < wiphy->n_iface_combinations; i++) {
		u32 cnt = 0;
		u16 all_iftypes = 0;

		c = &wiphy->iface_combinations[i];

		/*
                 * Combinations with just one interface aren't real,
                 * however we make an exception for DFS.
                 */
		if (WARN_ON((c->max_interfaces < 2) && !c->radar_detect_widths))
			return -EINVAL;

		/* Need at least one channel */
		if (WARN_ON(!c->num_different_channels))
			return -EINVAL;

		/*
                 * Put a sane limit on maximum number of different
                 * channels to simplify channel accounting code.
                 */
		if (WARN_ON(c->num_different_channels >
				CFG80211_MAX_NUM_DIFFERENT_CHANNELS))
			return -EINVAL;

		/* DFS only works on one channel. */
		if (WARN_ON(c->radar_detect_widths &&
			    (c->num_different_channels > 1)))
			return -EINVAL;

		if (WARN_ON(!c->n_limits))
			return -EINVAL;

		for (j = 0; j < c->n_limits; j++) {
			u16 types = c->limits[j].types;

			/* interface types shouldn't overlap */
			if (WARN_ON(types & all_iftypes))
				return -EINVAL;
			all_iftypes |= types;

			if (WARN_ON(!c->limits[j].max))
				return -EINVAL;

			/* Shouldn't list software iftypes in combinations! */
			if (WARN_ON(wiphy->software_iftypes & types))
				return -EINVAL;

			/* Only a single P2P_DEVICE can be allowed */
			if (WARN_ON(types & BIT(NL80211_IFTYPE_P2P_DEVICE) &&
				    c->limits[j].max > 1))
				return -EINVAL;

			/* Only a single NAN can be allowed */
			if (WARN_ON(types & BIT(NL80211_IFTYPE_NAN) &&
				    c->limits[j].max > 1))
				return -EINVAL;

			/*
                         * This isn't well-defined right now. If you have an
                         * IBSS interface, then its beacon interval may change
                         * by joining other networks, and nothing prevents it
                         * from doing that.
                         * So technically we probably shouldn't even allow AP
                         * and IBSS in the same interface, but it seems that
                         * some drivers support that, possibly only with fixed
                         * beacon intervals for IBSS.
                         */
			if (WARN_ON(types & BIT(NL80211_IFTYPE_ADHOC) &&
				    c->beacon_int_min_gcd)) {
				return -EINVAL;
			}

			cnt += c->limits[j].max;
			/*
                         * Don't advertise an unsupported type
                         * in a combination.
                         */
			if (WARN_ON((wiphy->interface_modes & types) != types))
				return -EINVAL;
		}

#ifndef CONFIG_WIRELESS_WDS
		if (WARN_ON(all_iftypes & BIT(NL80211_IFTYPE_WDS)))
			return -EINVAL;
#endif

		/* You can't even choose that many! */
		if (WARN_ON(cnt < c->max_interfaces))
			return -EINVAL;
	}

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
306
80.31%
4
50.00%
Simon Wunderlich
30
7.87%
1
12.50%
Ayala Beker
28
7.35%
1
12.50%
Michal Kazior
16
4.20%
1
12.50%
Luciano Coelho
1
0.26%
1
12.50%
Total
381
100.00%
8
100.00%



int wiphy_register(struct wiphy *wiphy)
{
	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
	int res;
	enum nl80211_band band;
	struct ieee80211_supported_band *sband;
	bool have_band = false;
	int i;
	u16 ifmodes = wiphy->interface_modes;

#ifdef CONFIG_PM
	if (WARN_ON(wiphy->wowlan &&
		    (wiphy->wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
		    !(wiphy->wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)))
		return -EINVAL;
	if (WARN_ON(wiphy->wowlan &&
		    !wiphy->wowlan->flags && !wiphy->wowlan->n_patterns &&
		    !wiphy->wowlan->tcp))
		return -EINVAL;
#endif
	if (WARN_ON((wiphy->features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) &&
		    (!rdev->ops->tdls_channel_switch ||
		     !rdev->ops->tdls_cancel_channel_switch)))
		return -EINVAL;

	if (WARN_ON((wiphy->interface_modes & BIT(NL80211_IFTYPE_NAN)) &&
		    (!rdev->ops->start_nan || !rdev->ops->stop_nan ||
		     !rdev->ops->add_nan_func || !rdev->ops->del_nan_func ||
		     !(wiphy->nan_supported_bands & BIT(NL80211_BAND_2GHZ)))))
		return -EINVAL;

#ifndef CONFIG_WIRELESS_WDS
	if (WARN_ON(wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS)))
		return -EINVAL;
#endif

	/*
         * if a wiphy has unsupported modes for regulatory channel enforcement,
         * opt-out of enforcement checking
         */
	if (wiphy->interface_modes & ~(BIT(NL80211_IFTYPE_STATION) |
				       BIT(NL80211_IFTYPE_P2P_CLIENT) |
				       BIT(NL80211_IFTYPE_AP) |
				       BIT(NL80211_IFTYPE_P2P_GO) |
				       BIT(NL80211_IFTYPE_ADHOC) |
				       BIT(NL80211_IFTYPE_P2P_DEVICE) |
				       BIT(NL80211_IFTYPE_NAN) |
				       BIT(NL80211_IFTYPE_AP_VLAN) |
				       BIT(NL80211_IFTYPE_MONITOR)))
		wiphy->regulatory_flags |= REGULATORY_IGNORE_STALE_KICKOFF;

	if (WARN_ON((wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) &&
		    (wiphy->regulatory_flags &
					(REGULATORY_CUSTOM_REG |
					 REGULATORY_STRICT_REG |
					 REGULATORY_COUNTRY_IE_FOLLOW_POWER |
					 REGULATORY_COUNTRY_IE_IGNORE))))
		return -EINVAL;

	if (WARN_ON(wiphy->coalesce &&
		    (!wiphy->coalesce->n_rules ||
		     !wiphy->coalesce->n_patterns) &&
		    (!wiphy->coalesce->pattern_min_len ||
		     wiphy->coalesce->pattern_min_len >
			wiphy->coalesce->pattern_max_len)))
		return -EINVAL;

	if (WARN_ON(wiphy->ap_sme_capa &&
		    !(wiphy->flags & WIPHY_FLAG_HAVE_AP_SME)))
		return -EINVAL;

	if (WARN_ON(wiphy->addresses && !wiphy->n_addresses))
		return -EINVAL;

	if (WARN_ON(wiphy->addresses &&
		    !is_zero_ether_addr(wiphy->perm_addr) &&
		    memcmp(wiphy->perm_addr, wiphy->addresses[0].addr,
			   ETH_ALEN)))
		return -EINVAL;

	if (WARN_ON(wiphy->max_acl_mac_addrs &&
		    (!(wiphy->flags & WIPHY_FLAG_HAVE_AP_SME) ||
		     !rdev->ops->set_mac_acl)))
		return -EINVAL;

	/* assure only valid behaviours are flagged by driver
         * hence subtract 2 as bit 0 is invalid.
         */
	if (WARN_ON(wiphy->bss_select_support &&
		    (wiphy->bss_select_support & ~(BIT(__NL80211_BSS_SELECT_ATTR_AFTER_LAST) - 2))))
		return -EINVAL;

	if (wiphy->addresses)
		memcpy(wiphy->perm_addr, wiphy->addresses[0].addr, ETH_ALEN);

	/* sanity check ifmodes */
	WARN_ON(!ifmodes);
	ifmodes &= ((1 << NUM_NL80211_IFTYPES) - 1) & ~1;
	if (WARN_ON(ifmodes != wiphy->interface_modes))
		wiphy->interface_modes = ifmodes;

	res = wiphy_verify_combinations(wiphy);
	if (res)
		return res;

	/* sanity check supported bands/channels */
	for (band = 0; band < NUM_NL80211_BANDS; band++) {
		sband = wiphy->bands[band];
		if (!sband)
			continue;

		sband->band = band;
		if (WARN_ON(!sband->n_channels))
			return -EINVAL;
		/*
                 * on 60GHz band, there are no legacy rates, so
                 * n_bitrates is 0
                 */
		if (WARN_ON(band != NL80211_BAND_60GHZ &&
			    !sband->n_bitrates))
			return -EINVAL;

		/*
                 * Since cfg80211_disable_40mhz_24ghz is global, we can
                 * modify the sband's ht data even if the driver uses a
                 * global structure for that.
                 */
		if (cfg80211_disable_40mhz_24ghz &&
		    band == NL80211_BAND_2GHZ &&
		    sband->ht_cap.ht_supported) {
			sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
			sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_40;
		}

		/*
                 * Since we use a u32 for rate bitmaps in
                 * ieee80211_get_response_rate, we cannot
                 * have more than 32 legacy rates.
                 */
		if (WARN_ON(sband->n_bitrates > 32))
			return -EINVAL;

		for (i = 0; i < sband->n_channels; i++) {
			sband->channels[i].orig_flags =
				sband->channels[i].flags;
			sband->channels[i].orig_mag = INT_MAX;
			sband->channels[i].orig_mpwr =
				sband->channels[i].max_power;
			sband->channels[i].band = band;
		}

		have_band = true;
	}

	if (!have_band) {
		WARN_ON(1);
		return -EINVAL;
	}

#ifdef CONFIG_PM
	if (WARN_ON(rdev->wiphy.wowlan && rdev->wiphy.wowlan->n_patterns &&
		    (!rdev->wiphy.wowlan->pattern_min_len ||
		     rdev->wiphy.wowlan->pattern_min_len >
				rdev->wiphy.wowlan->pattern_max_len)))
		return -EINVAL;
#endif

	/* check and set up bitrates */
	ieee80211_set_bitrate_flags(wiphy);

	rdev->wiphy.features |= NL80211_FEATURE_SCAN_FLUSH;

	rtnl_lock();
	res = device_add(&rdev->wiphy.dev);
	if (res) {
		rtnl_unlock();
		return res;
	}

	/* set up regulatory info */
	wiphy_regulatory_register(wiphy);

	list_add_rcu(&rdev->list, &cfg80211_rdev_list);
	cfg80211_rdev_list_generation++;

	/* add to debugfs */
	rdev->wiphy.debugfsdir =
		debugfs_create_dir(wiphy_name(&rdev->wiphy),
				   ieee80211_debugfs_dir);
	if (IS_ERR(rdev->wiphy.debugfsdir))
		rdev->wiphy.debugfsdir = NULL;

	cfg80211_debugfs_rdev_add(rdev);
	nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);

	if (wiphy->regulatory_flags & REGULATORY_CUSTOM_REG) {
		struct regulatory_request request;

		request.wiphy_idx = get_wiphy_idx(wiphy);
		request.initiator = NL80211_REGDOM_SET_BY_DRIVER;
		request.alpha2[0] = '9';
		request.alpha2[1] = '9';

		nl80211_send_reg_change_event(&request);
	}

	/* Check that nobody globally advertises any capabilities they do not
         * advertise on all possible interface types.
         */
	if (wiphy->extended_capabilities_len &&
	    wiphy->num_iftype_ext_capab &&
	    wiphy->iftype_ext_capab) {
		u8 supported_on_all, j;
		const struct wiphy_iftype_ext_capab *capab;

		capab = wiphy->iftype_ext_capab;
		for (j = 0; j < wiphy->extended_capabilities_len; j++) {
			if (capab[0].extended_capabilities_len > j)
				supported_on_all =
					capab[0].extended_capabilities[j];
			else
				supported_on_all = 0x00;
			for (i = 1; i < wiphy->num_iftype_ext_capab; i++) {
				if (j >= capab[i].extended_capabilities_len) {
					supported_on_all = 0x00;
					break;
				}
				supported_on_all &=
					capab[i].extended_capabilities[j];
			}
			if (WARN_ON(wiphy->extended_capabilities[j] &
				    ~supported_on_all))
				break;
		}
	}

	rdev->wiphy.registered = true;
	rtnl_unlock();

	res = rfkill_register(rdev->rfkill);
	if (res) {
		rfkill_destroy(rdev->rfkill);
		rdev->rfkill = NULL;
		wiphy_unregister(&rdev->wiphy);
		return res;
	}

	return 0;
}
Contributors
Person
Tokens
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CommitProp
Johannes Berg
610
49.59%
23
52.27%
Vidyullatha Kanchanapally
142
11.54%
1
2.27%
Luis R. Rodriguez
102
8.29%
4
9.09%
Arik Nemtsov
89
7.24%
2
4.55%
Amitkumar Karwar
84
6.83%
2
4.55%
Ayala Beker
55
4.47%
2
4.55%
Jonathan Doron
33
2.68%
1
2.27%
Vasanthakumar Thiagarajan
31
2.52%
1
2.27%
Arend Van Spriel
30
2.44%
1
2.27%
Vladimir Kondratiev
13
1.06%
1
2.27%
Tomasz Bursztyka
12
0.98%
1
2.27%
Luciano Coelho
12
0.98%
1
2.27%
Stanislaw Gruszka
11
0.89%
1
2.27%
John W. Linville
4
0.33%
1
2.27%
Zhao, Gang
1
0.08%
1
2.27%
Felix Fietkau
1
0.08%
1
2.27%
Total
1230
100.00%
44
100.00%


EXPORT_SYMBOL(wiphy_register);



void wiphy_rfkill_start_polling(struct wiphy *wiphy)
{
	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);

	if (!rdev->ops->rfkill_poll)
		return;
	rdev->rfkill_ops.poll = cfg80211_rfkill_poll;
	rfkill_resume_polling(rdev->rfkill);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
44
97.78%
2
66.67%
Zhao, Gang
1
2.22%
1
33.33%
Total
45
100.00%
3
100.00%


EXPORT_SYMBOL(wiphy_rfkill_start_polling);



void wiphy_rfkill_stop_polling(struct wiphy *wiphy)
{
	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);

	rfkill_pause_polling(rdev->rfkill);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
26
96.30%
2
66.67%
Zhao, Gang
1
3.70%
1
33.33%
Total
27
100.00%
3
100.00%


EXPORT_SYMBOL(wiphy_rfkill_stop_polling);



void wiphy_unregister(struct wiphy *wiphy)
{
	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);

	wait_event(rdev->dev_wait, ({
                int __count;
                rtnl_lock();
                __count = rdev->opencount;
                rtnl_unlock();
                __count == 0; }));

	if (rdev->rfkill)
		rfkill_unregister(rdev->rfkill);

	rtnl_lock();
	nl80211_notify_wiphy(rdev, NL80211_CMD_DEL_WIPHY);
	rdev->wiphy.registered = false;

	WARN_ON(!list_empty(&rdev->wiphy.wdev_list));

	/*
         * First remove the hardware from everywhere, this makes
         * it impossible to find from userspace.
         */
	debugfs_remove_recursive(rdev->wiphy.debugfsdir);
	list_del_rcu(&rdev->list);
	synchronize_rcu();

	/*
         * If this device got a regulatory hint tell core its
         * free to listen now to a new shiny device regulatory hint
         */
	wiphy_regulatory_deregister(wiphy);

	cfg80211_rdev_list_generation++;
	device_del(&rdev->wiphy.dev);

	rtnl_unlock();

	flush_work(&rdev->scan_done_wk);
	cancel_work_sync(&rdev->conn_work);
	flush_work(&rdev->event_work);
	cancel_delayed_work_sync(&rdev->dfs_update_channels_wk);
	flush_work(&rdev->destroy_work);
	flush_work(&rdev->sched_scan_stop_wk);
	flush_work(&rdev->mlme_unreg_wk);

#ifdef CONFIG_PM
	if (rdev->wiphy.wowlan_config && rdev->ops->set_wakeup)
		rdev_set_wakeup(rdev, false);
#endif
	cfg80211_rdev_free_wowlan(rdev);
	cfg80211_rdev_free_coalesce(rdev);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
172
82.30%
22
73.33%
Stanislaw Gruszka
11
5.26%
1
3.33%
Simon Wunderlich
8
3.83%
1
3.33%
Jukka Rissanen
8
3.83%
1
3.33%
Amitkumar Karwar
5
2.39%
1
3.33%
Luis R. Rodriguez
3
1.44%
2
6.67%
Hila Gonen
1
0.48%
1
3.33%
Zhao, Gang
1
0.48%
1
3.33%
Total
209
100.00%
30
100.00%


EXPORT_SYMBOL(wiphy_unregister);



void cfg80211_dev_free(struct cfg80211_registered_device *rdev)
{
	struct cfg80211_internal_bss *scan, *tmp;
	struct cfg80211_beacon_registration *reg, *treg;
	rfkill_destroy(rdev->rfkill);
	list_for_each_entry_safe(reg, treg, &rdev->beacon_registrations, list) {
		list_del(&reg->list);
		kfree(reg);
	}
	list_for_each_entry_safe(scan, tmp, &rdev->bss_list, list)
		cfg80211_put_bss(&rdev->wiphy, &scan->pub);
	kfree(rdev);
}

Contributors
Person
Tokens
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CommitProp
Johannes Berg
53
61.63%
6
85.71%
Ben Greear
33
38.37%
1
14.29%
Total
86
100.00%
7
100.00%



void wiphy_free(struct wiphy *wiphy)
{
	put_device(&wiphy->dev);
}
Contributors
Person
Tokens
Prop
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CommitProp
Johannes Berg
18
100.00%
1
100.00%
Total
18
100.00%
1
100.00%


EXPORT_SYMBOL(wiphy_free);



void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked)
{
	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);

	if (rfkill_set_hw_state(rdev->rfkill, blocked))
		schedule_work(&rdev->rfkill_sync);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
41
97.62%
2
66.67%
Zhao, Gang
1
2.38%
1
33.33%
Total
42
100.00%
3
100.00%


EXPORT_SYMBOL(wiphy_rfkill_set_hw_state);



void cfg80211_unregister_wdev(struct wireless_dev *wdev)
{
	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);

	ASSERT_RTNL();

	if (WARN_ON(wdev->netdev))
		return;

	nl80211_notify_iface(rdev, wdev, NL80211_CMD_DEL_INTERFACE);

	list_del_rcu(&wdev->list);
	rdev->devlist_generation++;

	switch (wdev->iftype) {
	case NL80211_IFTYPE_P2P_DEVICE:
		cfg80211_mlme_purge_registrations(wdev);
		cfg80211_stop_p2p_device(rdev, wdev);
		break;
	case NL80211_IFTYPE_NAN:
		cfg80211_stop_nan(rdev, wdev);
		break;
	default:
		WARN_ON_ONCE(1);
		break;
	}
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
78
78.79%
3
50.00%
Ayala Beker
11
11.11%
1
16.67%
Denis Kenzior
9
9.09%
1
16.67%
Zhao, Gang
1
1.01%
1
16.67%
Total
99
100.00%
6
100.00%


EXPORT_SYMBOL(cfg80211_unregister_wdev);


static const struct device_type wiphy_type = {
	.name	= "wlan",
};



void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
			       enum nl80211_iftype iftype, int num)
{
	ASSERT_RTNL();

	rdev->num_running_ifaces += num;
	if (iftype == NL80211_IFTYPE_MONITOR)
		rdev->num_running_monitor_ifaces += num;
}

Contributors
Person
Tokens
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CommitProp
Michal Kazior
36
94.74%
1
50.00%
Johannes Berg
2
5.26%
1
50.00%
Total
38
100.00%
2
100.00%



void __cfg80211_leave(struct cfg80211_registered_device *rdev,
		      struct wireless_dev *wdev)
{
	struct net_device *dev = wdev->netdev;
	struct cfg80211_sched_scan_request *sched_scan_req;

	ASSERT_RTNL();
	ASSERT_WDEV_LOCK(wdev);

	switch (wdev->iftype) {
	case NL80211_IFTYPE_ADHOC:
		__cfg80211_leave_ibss(rdev, dev, true);
		break;
	case NL80211_IFTYPE_P2P_CLIENT:
	case NL80211_IFTYPE_STATION:
		sched_scan_req = rtnl_dereference(rdev->sched_scan_req);
		if (sched_scan_req && dev == sched_scan_req->dev)
			__cfg80211_stop_sched_scan(rdev, false);

#ifdef CONFIG_CFG80211_WEXT
		kfree(wdev->wext.ie);
		wdev->wext.ie = NULL;
		wdev->wext.ie_len = 0;
		wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
#endif
		cfg80211_disconnect(rdev, dev,
				    WLAN_REASON_DEAUTH_LEAVING, true);
		break;
	case NL80211_IFTYPE_MESH_POINT:
		__cfg80211_leave_mesh(rdev, dev);
		break;
	case NL80211_IFTYPE_AP:
	case NL80211_IFTYPE_P2P_GO:
		__cfg80211_stop_ap(rdev, dev, true);
		break;
	case NL80211_IFTYPE_OCB:
		__cfg80211_leave_ocb(rdev, dev);
		break;
	case NL80211_IFTYPE_WDS:
		/* must be handled by mac80211/driver, has no APIs */
		break;
	case NL80211_IFTYPE_P2P_DEVICE:
	case NL80211_IFTYPE_NAN:
		/* cannot happen, has no netdev */
		break;
	case NL80211_IFTYPE_AP_VLAN:
	case NL80211_IFTYPE_MONITOR:
		/* nothing to do */
		break;
	case NL80211_IFTYPE_UNSPECIFIED:
	case NUM_NL80211_IFTYPES:
		/* invalid */
		break;
	}
}

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Stanislaw Gruszka
128
61.24%
1
10.00%
Johannes Berg
29
13.88%
3
30.00%
Jukka Rissanen
14
6.70%
1
10.00%
Barak Bercovitz
13
6.22%
1
10.00%
Rostislav Lisovy
11
5.26%
1
10.00%
Michal Kazior
9
4.31%
1
10.00%
Ayala Beker
3
1.44%
1
10.00%
Ilan Peer
2
0.96%
1
10.00%
Total
209
100.00%
10
100.00%



void cfg80211_leave(struct cfg80211_registered_device *rdev,
		    struct wireless_dev *wdev)
{
	wdev_lock(wdev);
	__cfg80211_leave(rdev, wdev);
	wdev_unlock(wdev);
}

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32
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1
100.00%
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32
100.00%
1
100.00%



void cfg80211_stop_iface(struct wiphy *wiphy, struct wireless_dev *wdev,
			 gfp_t gfp)
{
	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
	struct cfg80211_event *ev;
	unsigned long flags;

	trace_cfg80211_stop_iface(wiphy, wdev);

	ev = kzalloc(sizeof(*ev), gfp);
	if (!ev)
		return;

	ev->type = EVENT_STOPPED;

	spin_lock_irqsave(&wdev->event_lock, flags);
	list_add_tail(&ev->list, &wdev->event_list);
	spin_unlock_irqrestore(&wdev->event_lock, flags);
	queue_work(cfg80211_wq, &rdev->event_work);
}
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112
100.00%
1
100.00%


EXPORT_SYMBOL(cfg80211_stop_iface);



static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
					 unsigned long state, void *ptr)
{
	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct cfg80211_registered_device *rdev;
	struct cfg80211_sched_scan_request *sched_scan_req;

	if (!wdev)
		return NOTIFY_DONE;

	rdev = wiphy_to_rdev(wdev->wiphy);

	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
                 * 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);
		INIT_LIST_HEAD(&wdev->mgmt_registrations);
		spin_lock_init(&wdev->mgmt_registrations_lock);

		wdev->identifier = ++rdev->wdev_id;
		list_add_rcu(&wdev->list, &rdev->wiphy.wdev_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")) {
			pr_err("failed to add phy80211 symlink to netdev!\n");
		}
		wdev->netdev = dev;
#ifdef CONFIG_CFG80211_WEXT
		wdev->wext.default_key = -1;
		wdev->wext.default_mgmt_key = -1;
		wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
#endif

		if (wdev->wiphy->flags & WIPHY_FLAG_PS_ON_BY_DEFAULT)
			wdev->ps = true;
		else
			wdev->ps = false;
		/* allow mac80211 to determine the timeout */
		wdev->ps_timeout = -1;

		if ((wdev->iftype == NL80211_IFTYPE_STATION ||
		     wdev->iftype == NL80211_IFTYPE_P2P_CLIENT ||
		     wdev->iftype == NL80211_IFTYPE_ADHOC) && !wdev->use_4addr)
			dev->priv_flags |= IFF_DONT_BRIDGE;

		INIT_WORK(&wdev->disconnect_wk, cfg80211_autodisconnect_wk);

		nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
		break;
	case NETDEV_GOING_DOWN:
		cfg80211_leave(rdev, wdev);
		break;
	case NETDEV_DOWN:
		cfg80211_update_iface_num(rdev, wdev->iftype, -1);
		if (rdev->scan_req && rdev->scan_req->wdev == wdev) {
			if (WARN_ON(!rdev->scan_req->notified))
				rdev->scan_req->info.aborted = true;
			___cfg80211_scan_done(rdev, false);
		}

		sched_scan_req = rtnl_dereference(rdev->sched_scan_req);
		if (WARN_ON(sched_scan_req &&
			    sched_scan_req->dev == wdev->netdev)) {
			__cfg80211_stop_sched_scan(rdev, false);
		}

		rdev->opencount--;
		wake_up(&rdev->dev_wait);
		break;
	case NETDEV_UP:
		cfg80211_update_iface_num(rdev, wdev->iftype, 1);
		wdev_lock(wdev);
		switch (wdev->iftype) {
#ifdef CONFIG_CFG80211_WEXT
		case NL80211_IFTYPE_ADHOC:
			cfg80211_ibss_wext_join(rdev, wdev);
			break;
		case NL80211_IFTYPE_STATION:
			cfg80211_mgd_wext_connect(rdev, wdev);
			break;
#endif
#ifdef CONFIG_MAC80211_MESH
		case NL80211_IFTYPE_MESH_POINT:
			{
				/* backward compat code... */
				struct mesh_setup setup;
				memcpy(&setup, &default_mesh_setup,
						sizeof(setup));
				 /* back compat only needed for mesh_id */
				setup.mesh_id = wdev->ssid;
				setup.mesh_id_len = wdev->mesh_id_up_len;
				if (wdev->mesh_id_up_len)
					__cfg80211_join_mesh(rdev, dev,
							&setup,
							&default_mesh_config);
				break;
			}
#endif
		default:
			break;
		}
		wdev_unlock(wdev);
		rdev->opencount++;

		/*
                 * Configure power management to the driver here so that its
                 * correctly set also after interface type changes etc.
                 */
		if ((wdev->iftype == NL80211_IFTYPE_STATION ||
		     wdev->iftype == NL80211_IFTYPE_P2P_CLIENT) &&
		    rdev->ops->set_power_mgmt)
			if (rdev_set_power_mgmt(rdev, dev, wdev->ps,
						wdev->ps_timeout)) {
				/* assume this means it's off */
				wdev->ps = false;
			}
		break;
	case NETDEV_UNREGISTER:
		/*
                 * 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)) {
			nl80211_notify_iface(rdev, wdev,
					     NL80211_CMD_DEL_INTERFACE);
			sysfs_remove_link(&dev->dev.kobj, "phy80211");
			list_del_rcu(&wdev->list);
			rdev->devlist_generation++;
			cfg80211_mlme_purge_registrations(wdev);
#ifdef CONFIG_CFG80211_WEXT
			kzfree(wdev->wext.keys);
#endif
			flush_work(&wdev->disconnect_wk);
		}
		/*
                 * synchronise (so that we won't find this netdev
                 * from other code any more) and then clear the list
                 * head so that the above code can safely check for
                 * !list_empty() to avoid double-cleanup.
                 */
		synchronize_rcu();
		INIT_LIST_HEAD(&wdev->list);
		/*
                 * Ensure that all events have been processed and
                 * freed.
                 */
		cfg80211_process_wdev_events(wdev);

		if (WARN_ON(wdev->current_bss)) {
			cfg80211_unhold_bss(wdev->current_bss);
			cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
			wdev->current_bss = NULL;
		}
		break;
	case NETDEV_PRE_UP:
		if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)))
			return notifier_from_errno(-EOPNOTSUPP);
		if (rfkill_blocked(rdev->rfkill))
			return notifier_from_errno(-ERFKILL);
		break;
	default:
		return NOTIFY_DONE;
	}

	wireless_nlevent_flush();

	return NOTIFY_OK;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
552
67.73%
34
59.65%
Javier Cardona
45
5.52%
1
1.75%
Juuso Oikarinen
42
5.15%
2
3.51%
Ben Greear
38
4.66%
1
1.75%
Denis Kenzior
18
2.21%
2
3.51%
Andrzej Zaborowski
18
2.21%
1
1.75%
Jouni Malinen
18
2.21%
1
1.75%
Jukka Rissanen
14
1.72%
1
1.75%
Michal Kazior
14
1.72%
1
1.75%
Marcel Holtmann
12
1.47%
1
1.75%
Eliad Peller
8
0.98%
1
1.75%
Daniel Drake
6
0.74%
1
1.75%
Luciano Coelho
6
0.74%
1
1.75%
Zhao, Gang
6
0.74%
2
3.51%
Jiri Pirko
5
0.61%
1
1.75%
Samuel Ortiz
4
0.49%
1
1.75%
Hila Gonen
2
0.25%
1
1.75%
Kalle Valo
2
0.25%
1
1.75%
Joe Perches
2
0.25%
1
1.75%
Avraham Stern
2
0.25%
1
1.75%
Stanislaw Gruszka
1
0.12%
1
1.75%
Total
815
100.00%
57
100.00%


static struct notifier_block cfg80211_netdev_notifier = {
	.notifier_call = cfg80211_netdev_notifier_call,
};



static void __net_exit cfg80211_pernet_exit(struct net *net)
{
	struct cfg80211_registered_device *rdev;

	rtnl_lock();
	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));
	}
	rtnl_unlock();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
59
100.00%
1
100.00%
Total
59
100.00%
1
100.00%


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;

	err = register_netdevice_notifier(&cfg80211_netdev_notifier);
	if (err)
		goto out_fail_notifier;

	err = nl80211_init();
	if (err)
		goto out_fail_nl80211;

	ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL);

	err = regulatory_init();
	if (err)
		goto out_fail_reg;

	cfg80211_wq = alloc_ordered_workqueue("cfg80211", WQ_MEM_RECLAIM);
	if (!cfg80211_wq) {
		err = -ENOMEM;
		goto out_fail_wq;
	}

	return 0;

out_fail_wq:
	regulatory_exit();
out_fail_reg:
	debugfs_remove(ieee80211_debugfs_dir);
	nl80211_exit();
out_fail_nl80211:
	unregister_netdevice_notifier(&cfg80211_netdev_notifier);
out_fail_notifier:
	wiphy_sysfs_exit();
out_fail_sysfs:
	unregister_pernet_device(&cfg80211_pernet_ops);
out_fail_pernet:
	return err;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
100
64.52%
3
37.50%
Luis R. Rodriguez
23
14.84%
1
12.50%
Alban Browaeys
19
12.26%
1
12.50%
Wei Yongjun
7
4.52%
1
12.50%
Junjie Mao
3
1.94%
1
12.50%
Bhaktipriya Shridhar
3
1.94%
1
12.50%
Total
155
100.00%
8
100.00%


subsys_initcall(cfg80211_init);



static void __exit cfg80211_exit(void)
{
	debugfs_remove(ieee80211_debugfs_dir);
	nl80211_exit();
	unregister_netdevice_notifier(&cfg80211_netdev_notifier);
	wiphy_sysfs_exit();
	regulatory_exit();
	unregister_pernet_device(&cfg80211_pernet_ops);
	destroy_workqueue(cfg80211_wq);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
31
77.50%
3
50.00%
Alban Browaeys
5
12.50%
1
16.67%
Luis R. Rodriguez
3
7.50%
1
16.67%
Uwe Kleine-König
1
2.50%
1
16.67%
Total
40
100.00%
6
100.00%


module_exit(cfg80211_exit);
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Johannes Berg
3692
63.41%
88
51.76%
Ben Greear
226
3.88%
3
1.76%
Michal Kazior
224
3.85%
3
1.76%
Luis R. Rodriguez
194
3.33%
11
6.47%
Ayala Beker
161
2.77%
2
1.18%
Stanislaw Gruszka
151
2.59%
2
1.18%
Vidyullatha Kanchanapally
142
2.44%
1
0.59%
Amitkumar Karwar
109
1.87%
2
1.18%
Ola Olsson
96
1.65%
1
0.59%
Arik Nemtsov
89
1.53%
2
1.18%
Jukka Rissanen
87
1.49%
2
1.18%
Jouni Malinen
55
0.94%
2
1.18%
Simon Wunderlich
48
0.82%
2
1.18%
Javier Cardona
45
0.77%
1
0.59%
Juuso Oikarinen
42
0.72%
2
1.18%
Arend Van Spriel
38
0.65%
2
1.18%
Eric W. Biedermann
35
0.60%
1
0.59%
Jonathan Doron
33
0.57%
1
0.59%
Vasanthakumar Thiagarajan
31
0.53%
1
0.59%
Alban Browaeys
30
0.52%
1
0.59%
Luciano Coelho
29
0.50%
3
1.76%
Marcel Holtmann
29
0.50%
2
1.18%
Denis Kenzior
27
0.46%
2
1.18%
Avraham Stern
20
0.34%
2
1.18%
Andrzej Zaborowski
18
0.31%
1
0.59%
Zhao, Gang
13
0.22%
2
1.18%
Barak Bercovitz
13
0.22%
1
0.59%
Vladimir Kondratiev
13
0.22%
1
0.59%
Tomasz Bursztyka
12
0.21%
1
0.59%
Joe Perches
11
0.19%
1
0.59%
Rostislav Lisovy
11
0.19%
1
0.59%
Fu Zhonghui
10
0.17%
1
0.59%
Lukáš Turek
8
0.14%
1
0.59%
Andrei Otcheretianski
8
0.14%
1
0.59%
Eliad Peller
8
0.14%
1
0.59%
Cheng Renquan
7
0.12%
1
0.59%
Wei Yongjun
7
0.12%
1
0.59%
John W. Linville
6
0.10%
2
1.18%
Daniel Drake
6
0.10%
1
0.59%
Jiri Pirko
5
0.09%
1
0.59%
Hila Gonen
5
0.09%
1
0.59%
Samuel Ortiz
4
0.07%
1
0.59%
Alexey Dobriyan
3
0.05%
1
0.59%
Bhaktipriya Shridhar
3
0.05%
1
0.59%
Tejun Heo
3
0.05%
1
0.59%
Junjie Mao
3
0.05%
1
0.59%
Yi Zhu
3
0.05%
1
0.59%
Kay Sievers
2
0.03%
1
0.59%
Ilan Peer
2
0.03%
1
0.59%
Kalle Valo
2
0.03%
1
0.59%
Felix Fietkau
1
0.02%
1
0.59%
David Kilroy
1
0.02%
1
0.59%
Uwe Kleine-König
1
0.02%
1
0.59%
Total
5822
100.00%
170
100.00%
Directory: net/wireless

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