[deliverable/linux.git] / net / mac80211 / debugfs_netdev.c

/*
 * Copyright (c) 2006	Jiri Benc <jbenc@suse.cz>
 * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/if.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include <linux/notifier.h>
#include <net/mac80211.h>
#include <net/cfg80211.h>
#include "ieee80211_i.h"
#include "rate.h"
#include "debugfs.h"
#include "debugfs_netdev.h"

static ssize_t ieee80211_if_read(
	struct ieee80211_sub_if_data *sdata,
	char __user *userbuf,
	size_t count, loff_t *ppos,
	ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int))
{
	char buf[70];
	ssize_t ret = -EINVAL;

	read_lock(&dev_base_lock);
	if (sdata->dev->reg_state == NETREG_REGISTERED)
		ret = (*format)(sdata, buf, sizeof(buf));
	read_unlock(&dev_base_lock);

	if (ret != -EINVAL)
		ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);

	return ret;
}

#ifdef CONFIG_MAC80211_MESH
static ssize_t ieee80211_if_write(
	struct ieee80211_sub_if_data *sdata,
	char const __user *userbuf,
	size_t count, loff_t *ppos,
	int (*format)(struct ieee80211_sub_if_data *, char *))
{
	char buf[10];
	int buf_size;

	memset(buf, 0x00, sizeof(buf));
	buf_size = min(count, (sizeof(buf)-1));
	if (copy_from_user(buf, userbuf, buf_size))
		return count;
	read_lock(&dev_base_lock);
	if (sdata->dev->reg_state == NETREG_REGISTERED)
		(*format)(sdata, buf);
	read_unlock(&dev_base_lock);

	return count;
}
#endif

#define IEEE80211_IF_FMT(name, field, format_string)			\
static ssize_t ieee80211_if_fmt_##name(					\
	const struct ieee80211_sub_if_data *sdata, char *buf,		\
	int buflen)							\
{									\
	return scnprintf(buf, buflen, format_string, sdata->field);	\
}
#define IEEE80211_IF_WFMT(name, field, type)				\
static int ieee80211_if_wfmt_##name(					\
	struct ieee80211_sub_if_data *sdata, char *buf)			\
{									\
	unsigned long tmp;						\
	char *endp;							\
									\
	tmp = simple_strtoul(buf, &endp, 0);				\
	if ((endp == buf) || ((type)tmp != tmp))			\
		return -EINVAL;						\
	sdata->field = tmp;						\
	return 0;							\
}
#define IEEE80211_IF_FMT_DEC(name, field)				\
		IEEE80211_IF_FMT(name, field, "%d\n")
#define IEEE80211_IF_FMT_HEX(name, field)				\
		IEEE80211_IF_FMT(name, field, "%#x\n")
#define IEEE80211_IF_FMT_SIZE(name, field)				\
		IEEE80211_IF_FMT(name, field, "%zd\n")

#define IEEE80211_IF_FMT_ATOMIC(name, field)				\
static ssize_t ieee80211_if_fmt_##name(					\
	const struct ieee80211_sub_if_data *sdata,			\
	char *buf, int buflen)						\
{									\
	return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
}

#define IEEE80211_IF_FMT_MAC(name, field)				\
static ssize_t ieee80211_if_fmt_##name(					\
	const struct ieee80211_sub_if_data *sdata, char *buf,		\
	int buflen)							\
{									\
	return scnprintf(buf, buflen, "%pM\n", sdata->field);		\
}

#define __IEEE80211_IF_FILE(name)					\
static ssize_t ieee80211_if_read_##name(struct file *file,		\
					char __user *userbuf,		\
					size_t count, loff_t *ppos)	\
{									\
	return ieee80211_if_read(file->private_data,			\
				 userbuf, count, ppos,			\
				 ieee80211_if_fmt_##name);		\
}									\
static const struct file_operations name##_ops = {			\
	.read = ieee80211_if_read_##name,				\
	.open = mac80211_open_file_generic,				\
}

#define IEEE80211_IF_FILE(name, field, format)				\
		IEEE80211_IF_FMT_##format(name, field)			\
		__IEEE80211_IF_FILE(name)

#define __IEEE80211_IF_WFILE(name)					\
static ssize_t ieee80211_if_read_##name(struct file *file,		\
					char __user *userbuf,		\
					size_t count, loff_t *ppos)	\
{									\
	return ieee80211_if_read(file->private_data,			\
				 userbuf, count, ppos,			\
				 ieee80211_if_fmt_##name);		\
}									\
static ssize_t ieee80211_if_write_##name(struct file *file,		\
					const char __user *userbuf,	\
					size_t count, loff_t *ppos)	\
{									\
	return ieee80211_if_write(file->private_data,			\
				 userbuf, count, ppos,			\
				 ieee80211_if_wfmt_##name);		\
}									\
static const struct file_operations name##_ops = {			\
	.read = ieee80211_if_read_##name,				\
	.write = ieee80211_if_write_##name,				\
	.open = mac80211_open_file_generic,				\
}

#define IEEE80211_IF_WFILE(name, field, format, type)			\
		IEEE80211_IF_FMT_##format(name, field)			\
		IEEE80211_IF_WFMT(name, field, type)			\
		__IEEE80211_IF_WFILE(name)

/* common attributes */
IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
IEEE80211_IF_FILE(force_unicast_rateidx, force_unicast_rateidx, DEC);
IEEE80211_IF_FILE(max_ratectrl_rateidx, max_ratectrl_rateidx, DEC);

/* STA/IBSS attributes */
IEEE80211_IF_FILE(state, u.sta.state, DEC);
IEEE80211_IF_FILE(bssid, u.sta.bssid, MAC);
IEEE80211_IF_FILE(prev_bssid, u.sta.prev_bssid, MAC);
IEEE80211_IF_FILE(ssid_len, u.sta.ssid_len, SIZE);
IEEE80211_IF_FILE(aid, u.sta.aid, DEC);
IEEE80211_IF_FILE(ap_capab, u.sta.ap_capab, HEX);
IEEE80211_IF_FILE(capab, u.sta.capab, HEX);
IEEE80211_IF_FILE(extra_ie_len, u.sta.extra_ie_len, SIZE);
IEEE80211_IF_FILE(auth_tries, u.sta.auth_tries, DEC);
IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC);
IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX);
IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC);
IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC);

static ssize_t ieee80211_if_fmt_flags(
	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
	return scnprintf(buf, buflen, "%s%s%s%s%s%s%s\n",
		 sdata->u.sta.flags & IEEE80211_STA_SSID_SET ? "SSID\n" : "",
		 sdata->u.sta.flags & IEEE80211_STA_BSSID_SET ? "BSSID\n" : "",
		 sdata->u.sta.flags & IEEE80211_STA_PREV_BSSID_SET ? "prev BSSID\n" : "",
		 sdata->u.sta.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "",
		 sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "",
		 sdata->u.sta.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "",
		 sdata->bss_conf.use_cts_prot ? "CTS prot\n" : "");
}
__IEEE80211_IF_FILE(flags);

/* AP attributes */
IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);

static ssize_t ieee80211_if_fmt_num_buffered_multicast(
	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
	return scnprintf(buf, buflen, "%u\n",
			 skb_queue_len(&sdata->u.ap.ps_bc_buf));
}
__IEEE80211_IF_FILE(num_buffered_multicast);

/* WDS attributes */
IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);

#ifdef CONFIG_MAC80211_MESH
/* Mesh stats attributes */
IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
IEEE80211_IF_FILE(dropped_frames_no_route,
		u.mesh.mshstats.dropped_frames_no_route, DEC);
IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC);

/* Mesh parameters */
IEEE80211_IF_WFILE(dot11MeshMaxRetries,
		u.mesh.mshcfg.dot11MeshMaxRetries, DEC, u8);
IEEE80211_IF_WFILE(dot11MeshRetryTimeout,
		u.mesh.mshcfg.dot11MeshRetryTimeout, DEC, u16);
IEEE80211_IF_WFILE(dot11MeshConfirmTimeout,
		u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC, u16);
IEEE80211_IF_WFILE(dot11MeshHoldingTimeout,
		u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC, u16);
IEEE80211_IF_WFILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC, u8);
IEEE80211_IF_WFILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC, u8);
IEEE80211_IF_WFILE(dot11MeshMaxPeerLinks,
		u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC, u16);
IEEE80211_IF_WFILE(dot11MeshHWMPactivePathTimeout,
		u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC, u32);
IEEE80211_IF_WFILE(dot11MeshHWMPpreqMinInterval,
		u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC, u16);
IEEE80211_IF_WFILE(dot11MeshHWMPnetDiameterTraversalTime,
		u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC, u16);
IEEE80211_IF_WFILE(dot11MeshHWMPmaxPREQretries,
		u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC, u8);
IEEE80211_IF_WFILE(path_refresh_time,
		u.mesh.mshcfg.path_refresh_time, DEC, u32);
IEEE80211_IF_WFILE(min_discovery_timeout,
		u.mesh.mshcfg.min_discovery_timeout, DEC, u16);
#endif


#define DEBUGFS_ADD(name, type)\
	sdata->debugfs.type.name = debugfs_create_file(#name, 0400,\
		sdata->debugfsdir, sdata, &name##_ops);

static void add_sta_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(drop_unencrypted, sta);
	DEBUGFS_ADD(force_unicast_rateidx, sta);
	DEBUGFS_ADD(max_ratectrl_rateidx, sta);

	DEBUGFS_ADD(state, sta);
	DEBUGFS_ADD(bssid, sta);
	DEBUGFS_ADD(prev_bssid, sta);
	DEBUGFS_ADD(ssid_len, sta);
	DEBUGFS_ADD(aid, sta);
	DEBUGFS_ADD(ap_capab, sta);
	DEBUGFS_ADD(capab, sta);
	DEBUGFS_ADD(extra_ie_len, sta);
	DEBUGFS_ADD(auth_tries, sta);
	DEBUGFS_ADD(assoc_tries, sta);
	DEBUGFS_ADD(auth_algs, sta);
	DEBUGFS_ADD(auth_alg, sta);
	DEBUGFS_ADD(auth_transaction, sta);
	DEBUGFS_ADD(flags, sta);
}

static void add_ap_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(drop_unencrypted, ap);
	DEBUGFS_ADD(force_unicast_rateidx, ap);
	DEBUGFS_ADD(max_ratectrl_rateidx, ap);

	DEBUGFS_ADD(num_sta_ps, ap);
	DEBUGFS_ADD(dtim_count, ap);
	DEBUGFS_ADD(num_buffered_multicast, ap);
}

static void add_wds_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(drop_unencrypted, wds);
	DEBUGFS_ADD(force_unicast_rateidx, wds);
	DEBUGFS_ADD(max_ratectrl_rateidx, wds);

	DEBUGFS_ADD(peer, wds);
}

static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(drop_unencrypted, vlan);
	DEBUGFS_ADD(force_unicast_rateidx, vlan);
	DEBUGFS_ADD(max_ratectrl_rateidx, vlan);
}

static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
{
}

#ifdef CONFIG_MAC80211_MESH
#define MESHSTATS_ADD(name)\
	sdata->mesh_stats.name = debugfs_create_file(#name, 0400,\
		sdata->mesh_stats_dir, sdata, &name##_ops);

static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
{
	sdata->mesh_stats_dir = debugfs_create_dir("mesh_stats",
				sdata->debugfsdir);
	MESHSTATS_ADD(fwded_frames);
	MESHSTATS_ADD(dropped_frames_ttl);
	MESHSTATS_ADD(dropped_frames_no_route);
	MESHSTATS_ADD(estab_plinks);
}

#define MESHPARAMS_ADD(name)\
	sdata->mesh_config.name = debugfs_create_file(#name, 0600,\
		sdata->mesh_config_dir, sdata, &name##_ops);

static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
{
	sdata->mesh_config_dir = debugfs_create_dir("mesh_config",
				sdata->debugfsdir);
	MESHPARAMS_ADD(dot11MeshMaxRetries);
	MESHPARAMS_ADD(dot11MeshRetryTimeout);
	MESHPARAMS_ADD(dot11MeshConfirmTimeout);
	MESHPARAMS_ADD(dot11MeshHoldingTimeout);
	MESHPARAMS_ADD(dot11MeshTTL);
	MESHPARAMS_ADD(auto_open_plinks);
	MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
	MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
	MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
	MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
	MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
	MESHPARAMS_ADD(path_refresh_time);
	MESHPARAMS_ADD(min_discovery_timeout);
}
#endif

static void add_files(struct ieee80211_sub_if_data *sdata)
{
	if (!sdata->debugfsdir)
		return;

	switch (sdata->vif.type) {
	case NL80211_IFTYPE_MESH_POINT:
#ifdef CONFIG_MAC80211_MESH
		add_mesh_stats(sdata);
		add_mesh_config(sdata);
#endif
		break;
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
		add_sta_files(sdata);
		break;
	case NL80211_IFTYPE_AP:
		add_ap_files(sdata);
		break;
	case NL80211_IFTYPE_WDS:
		add_wds_files(sdata);
		break;
	case NL80211_IFTYPE_MONITOR:
		add_monitor_files(sdata);
		break;
	case NL80211_IFTYPE_AP_VLAN:
		add_vlan_files(sdata);
		break;
	default:
		break;
	}
}

#define DEBUGFS_DEL(name, type)					\
	do {							\
		debugfs_remove(sdata->debugfs.type.name);	\
		sdata->debugfs.type.name = NULL;		\
	} while (0)

static void del_sta_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_DEL(drop_unencrypted, sta);
	DEBUGFS_DEL(force_unicast_rateidx, sta);
	DEBUGFS_DEL(max_ratectrl_rateidx, sta);

	DEBUGFS_DEL(state, sta);
	DEBUGFS_DEL(bssid, sta);
	DEBUGFS_DEL(prev_bssid, sta);
	DEBUGFS_DEL(ssid_len, sta);
	DEBUGFS_DEL(aid, sta);
	DEBUGFS_DEL(ap_capab, sta);
	DEBUGFS_DEL(capab, sta);
	DEBUGFS_DEL(extra_ie_len, sta);
	DEBUGFS_DEL(auth_tries, sta);
	DEBUGFS_DEL(assoc_tries, sta);
	DEBUGFS_DEL(auth_algs, sta);
	DEBUGFS_DEL(auth_alg, sta);
	DEBUGFS_DEL(auth_transaction, sta);
	DEBUGFS_DEL(flags, sta);
}

static void del_ap_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_DEL(drop_unencrypted, ap);
	DEBUGFS_DEL(force_unicast_rateidx, ap);
	DEBUGFS_DEL(max_ratectrl_rateidx, ap);

	DEBUGFS_DEL(num_sta_ps, ap);
	DEBUGFS_DEL(dtim_count, ap);
	DEBUGFS_DEL(num_buffered_multicast, ap);
}

static void del_wds_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_DEL(drop_unencrypted, wds);
	DEBUGFS_DEL(force_unicast_rateidx, wds);
	DEBUGFS_DEL(max_ratectrl_rateidx, wds);

	DEBUGFS_DEL(peer, wds);
}

static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_DEL(drop_unencrypted, vlan);
	DEBUGFS_DEL(force_unicast_rateidx, vlan);
	DEBUGFS_DEL(max_ratectrl_rateidx, vlan);
}

static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
{
}

#ifdef CONFIG_MAC80211_MESH
#define MESHSTATS_DEL(name)			\
	do {						\
		debugfs_remove(sdata->mesh_stats.name);	\
		sdata->mesh_stats.name = NULL;		\
	} while (0)

static void del_mesh_stats(struct ieee80211_sub_if_data *sdata)
{
	MESHSTATS_DEL(fwded_frames);
	MESHSTATS_DEL(dropped_frames_ttl);
	MESHSTATS_DEL(dropped_frames_no_route);
	MESHSTATS_DEL(estab_plinks);
	debugfs_remove(sdata->mesh_stats_dir);
	sdata->mesh_stats_dir = NULL;
}

#define MESHPARAMS_DEL(name)			\
	do {						\
		debugfs_remove(sdata->mesh_config.name);	\
		sdata->mesh_config.name = NULL;		\
	} while (0)

static void del_mesh_config(struct ieee80211_sub_if_data *sdata)
{
	MESHPARAMS_DEL(dot11MeshMaxRetries);
	MESHPARAMS_DEL(dot11MeshRetryTimeout);
	MESHPARAMS_DEL(dot11MeshConfirmTimeout);
	MESHPARAMS_DEL(dot11MeshHoldingTimeout);
	MESHPARAMS_DEL(dot11MeshTTL);
	MESHPARAMS_DEL(auto_open_plinks);
	MESHPARAMS_DEL(dot11MeshMaxPeerLinks);
	MESHPARAMS_DEL(dot11MeshHWMPactivePathTimeout);
	MESHPARAMS_DEL(dot11MeshHWMPpreqMinInterval);
	MESHPARAMS_DEL(dot11MeshHWMPnetDiameterTraversalTime);
	MESHPARAMS_DEL(dot11MeshHWMPmaxPREQretries);
	MESHPARAMS_DEL(path_refresh_time);
	MESHPARAMS_DEL(min_discovery_timeout);
	debugfs_remove(sdata->mesh_config_dir);
	sdata->mesh_config_dir = NULL;
}
#endif

static void del_files(struct ieee80211_sub_if_data *sdata)
{
	if (!sdata->debugfsdir)
		return;

	switch (sdata->vif.type) {
	case NL80211_IFTYPE_MESH_POINT:
#ifdef CONFIG_MAC80211_MESH
		del_mesh_stats(sdata);
		del_mesh_config(sdata);
#endif
		break;
	case NL80211_IFTYPE_STATION:
	case NL80211_IFTYPE_ADHOC:
		del_sta_files(sdata);
		break;
	case NL80211_IFTYPE_AP:
		del_ap_files(sdata);
		break;
	case NL80211_IFTYPE_WDS:
		del_wds_files(sdata);
		break;
	case NL80211_IFTYPE_MONITOR:
		del_monitor_files(sdata);
		break;
	case NL80211_IFTYPE_AP_VLAN:
		del_vlan_files(sdata);
		break;
	default:
		break;
	}
}

static int notif_registered;

void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
{
	char buf[10+IFNAMSIZ];

	if (!notif_registered)
		return;

	sprintf(buf, "netdev:%s", sdata->dev->name);
	sdata->debugfsdir = debugfs_create_dir(buf,
		sdata->local->hw.wiphy->debugfsdir);
	add_files(sdata);
}

void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
{
	del_files(sdata);
	debugfs_remove(sdata->debugfsdir);
	sdata->debugfsdir = NULL;
}

static int netdev_notify(struct notifier_block *nb,
			 unsigned long state,
			 void *ndev)
{
	struct net_device *dev = ndev;
	struct dentry *dir;
	struct ieee80211_sub_if_data *sdata;
	char buf[10+IFNAMSIZ];

	if (state != NETDEV_CHANGENAME)
		return 0;

	if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy)
		return 0;

	if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
		return 0;

	sdata = IEEE80211_DEV_TO_SUB_IF(dev);

	dir = sdata->debugfsdir;

	if (!dir)
		return 0;

	sprintf(buf, "netdev:%s", dev->name);
	if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
		printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
		       "dir to %s\n", buf);

	return 0;
}

static struct notifier_block mac80211_debugfs_netdev_notifier = {
	.notifier_call = netdev_notify,
};

void ieee80211_debugfs_netdev_init(void)
{
	int err;

	err = register_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
	if (err) {
		printk(KERN_ERR
		       "mac80211: failed to install netdev notifier,"
		       " disabling per-netdev debugfs!\n");
	} else
		notif_registered = 1;
}

void ieee80211_debugfs_netdev_exit(void)
{
	unregister_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
	notif_registered = 0;
}
Commit	Line	Data
e9f207f0 JB	1	/*
	2	* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
	3	* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License version 2 as
	7	* published by the Free Software Foundation.
	8	*/
	9
	10	#include <linux/kernel.h>
	11	#include <linux/device.h>
	12	#include <linux/if.h>
	13	#include <linux/interrupt.h>
	14	#include <linux/netdevice.h>
	15	#include <linux/rtnetlink.h>
	16	#include <linux/notifier.h>
	17	#include <net/mac80211.h>
	18	#include <net/cfg80211.h>
	19	#include "ieee80211_i.h"
2c8dccc7	20	#include "rate.h"
e9f207f0 JB	21	#include "debugfs.h"
	22	#include "debugfs_netdev.h"
	23
	24	static ssize_t ieee80211_if_read(
	25	struct ieee80211_sub_if_data *sdata,
	26	char __user *userbuf,
	27	size_t count, loff_t *ppos,
	28	ssize_t (format)(const struct ieee80211_sub_if_data , char *, int))
	29	{
	30	char buf[70];
	31	ssize_t ret = -EINVAL;
	32
	33	read_lock(&dev_base_lock);
73bb3e4a	34	if (sdata->dev->reg_state == NETREG_REGISTERED)
e9f207f0	35	ret = (*format)(sdata, buf, sizeof(buf));
e9f207f0	36	read_unlock(&dev_base_lock);
73bb3e4a LCC	37
	38	if (ret != -EINVAL)
	39	ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
	40
e9f207f0 JB	41	return ret;
	42	}
	43
9f42f607 LCC	44	#ifdef CONFIG_MAC80211_MESH
	45	static ssize_t ieee80211_if_write(
	46	struct ieee80211_sub_if_data *sdata,
	47	char const __user *userbuf,
	48	size_t count, loff_t *ppos,
	49	int (format)(struct ieee80211_sub_if_data , char *))
	50	{
	51	char buf[10];
	52	int buf_size;
	53
	54	memset(buf, 0x00, sizeof(buf));
	55	buf_size = min(count, (sizeof(buf)-1));
9f42f607	56	if (copy_from_user(buf, userbuf, buf_size))
73bb3e4a LCC	57	return count;
73bb3e4a LCC	58	read_lock(&dev_base_lock);
9f42f607 LCC	59	if (sdata->dev->reg_state == NETREG_REGISTERED)
9f42f607 LCC	60	(*format)(sdata, buf);
9f42f607	61	read_unlock(&dev_base_lock);
73bb3e4a	62
9f42f607 LCC	63	return count;
	64	}
	65	#endif
	66
e9f207f0 JB	67	#define IEEE80211_IF_FMT(name, field, format_string) \
	68	static ssize_t ieee80211_if_fmt_##name( \
	69	const struct ieee80211_sub_if_data sdata, char buf, \
	70	int buflen) \
	71	{ \
	72	return scnprintf(buf, buflen, format_string, sdata->field); \
	73	}
9f42f607 LCC	74	#define IEEE80211_IF_WFMT(name, field, type) \
	75	static int ieee80211_if_wfmt_##name( \
	76	struct ieee80211_sub_if_data sdata, char buf) \
	77	{ \
	78	unsigned long tmp; \
	79	char *endp; \
	80	\
	81	tmp = simple_strtoul(buf, &endp, 0); \
	82	if ((endp == buf) \|\| ((type)tmp != tmp)) \
	83	return -EINVAL; \
	84	sdata->field = tmp; \
	85	return 0; \
	86	}
e9f207f0 JB	87	#define IEEE80211_IF_FMT_DEC(name, field) \
	88	IEEE80211_IF_FMT(name, field, "%d\n")
	89	#define IEEE80211_IF_FMT_HEX(name, field) \
	90	IEEE80211_IF_FMT(name, field, "%#x\n")
	91	#define IEEE80211_IF_FMT_SIZE(name, field) \
	92	IEEE80211_IF_FMT(name, field, "%zd\n")
	93
	94	#define IEEE80211_IF_FMT_ATOMIC(name, field) \
	95	static ssize_t ieee80211_if_fmt_##name( \
	96	const struct ieee80211_sub_if_data *sdata, \
	97	char *buf, int buflen) \
	98	{ \
	99	return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
	100	}
	101
	102	#define IEEE80211_IF_FMT_MAC(name, field) \
	103	static ssize_t ieee80211_if_fmt_##name( \
	104	const struct ieee80211_sub_if_data sdata, char buf, \
	105	int buflen) \
	106	{ \
0c68ae26	107	return scnprintf(buf, buflen, "%pM\n", sdata->field); \
e9f207f0 JB	108	}
	109
	110	#define __IEEE80211_IF_FILE(name) \
	111	static ssize_t ieee80211_if_read_##name(struct file *file, \
	112	char __user *userbuf, \
	113	size_t count, loff_t *ppos) \
	114	{ \
	115	return ieee80211_if_read(file->private_data, \
	116	userbuf, count, ppos, \
	117	ieee80211_if_fmt_##name); \
	118	} \
	119	static const struct file_operations name##_ops = { \
	120	.read = ieee80211_if_read_##name, \
	121	.open = mac80211_open_file_generic, \
	122	}
	123
	124	#define IEEE80211_IF_FILE(name, field, format) \
	125	IEEE80211_IF_FMT_##format(name, field) \
	126	__IEEE80211_IF_FILE(name)
	127
9f42f607 LCC	128	#define __IEEE80211_IF_WFILE(name) \
	129	static ssize_t ieee80211_if_read_##name(struct file *file, \
	130	char __user *userbuf, \
	131	size_t count, loff_t *ppos) \
	132	{ \
	133	return ieee80211_if_read(file->private_data, \
	134	userbuf, count, ppos, \
	135	ieee80211_if_fmt_##name); \
	136	} \
	137	static ssize_t ieee80211_if_write_##name(struct file *file, \
	138	const char __user *userbuf, \
	139	size_t count, loff_t *ppos) \
	140	{ \
	141	return ieee80211_if_write(file->private_data, \
	142	userbuf, count, ppos, \
	143	ieee80211_if_wfmt_##name); \
	144	} \
	145	static const struct file_operations name##_ops = { \
	146	.read = ieee80211_if_read_##name, \
	147	.write = ieee80211_if_write_##name, \
	148	.open = mac80211_open_file_generic, \
	149	}
	150
	151	#define IEEE80211_IF_WFILE(name, field, format, type) \
	152	IEEE80211_IF_FMT_##format(name, field) \
	153	IEEE80211_IF_WFMT(name, field, type) \
	154	__IEEE80211_IF_WFILE(name)
	155
e9f207f0	156	/* common attributes */
e9f207f0	157	IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
3e122be0 JB	158	IEEE80211_IF_FILE(force_unicast_rateidx, force_unicast_rateidx, DEC);
3e122be0 JB	159	IEEE80211_IF_FILE(max_ratectrl_rateidx, max_ratectrl_rateidx, DEC);
e9f207f0 JB	160
	161	/* STA/IBSS attributes */
	162	IEEE80211_IF_FILE(state, u.sta.state, DEC);
	163	IEEE80211_IF_FILE(bssid, u.sta.bssid, MAC);
	164	IEEE80211_IF_FILE(prev_bssid, u.sta.prev_bssid, MAC);
	165	IEEE80211_IF_FILE(ssid_len, u.sta.ssid_len, SIZE);
	166	IEEE80211_IF_FILE(aid, u.sta.aid, DEC);
	167	IEEE80211_IF_FILE(ap_capab, u.sta.ap_capab, HEX);
	168	IEEE80211_IF_FILE(capab, u.sta.capab, HEX);
	169	IEEE80211_IF_FILE(extra_ie_len, u.sta.extra_ie_len, SIZE);
	170	IEEE80211_IF_FILE(auth_tries, u.sta.auth_tries, DEC);
	171	IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC);
	172	IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX);
	173	IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC);
	174	IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC);
	175
	176	static ssize_t ieee80211_if_fmt_flags(
	177	const struct ieee80211_sub_if_data sdata, char buf, int buflen)
	178	{
	179	return scnprintf(buf, buflen, "%s%s%s%s%s%s%s\n",
d6f2da5b JS	180	sdata->u.sta.flags & IEEE80211_STA_SSID_SET ? "SSID\n" : "",
	181	sdata->u.sta.flags & IEEE80211_STA_BSSID_SET ? "BSSID\n" : "",
	182	sdata->u.sta.flags & IEEE80211_STA_PREV_BSSID_SET ? "prev BSSID\n" : "",
	183	sdata->u.sta.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "",
	184	sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "",
	185	sdata->u.sta.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "",
471b3efd	186	sdata->bss_conf.use_cts_prot ? "CTS prot\n" : "");
e9f207f0 JB	187	}
	188	__IEEE80211_IF_FILE(flags);
	189
	190	/* AP attributes */
	191	IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
e9f207f0	192	IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
e9f207f0 JB	193
	194	static ssize_t ieee80211_if_fmt_num_buffered_multicast(
	195	const struct ieee80211_sub_if_data sdata, char buf, int buflen)
	196	{
	197	return scnprintf(buf, buflen, "%u\n",
	198	skb_queue_len(&sdata->u.ap.ps_bc_buf));
	199	}
	200	__IEEE80211_IF_FILE(num_buffered_multicast);
	201
e9f207f0 JB	202	/* WDS attributes */
	203	IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
	204
9f42f607 LCC	205	#ifdef CONFIG_MAC80211_MESH
9f42f607 LCC	206	/* Mesh stats attributes */
472dbc45 JB	207	IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
472dbc45 JB	208	IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
9f42f607	209	IEEE80211_IF_FILE(dropped_frames_no_route,
472dbc45 JB	210	u.mesh.mshstats.dropped_frames_no_route, DEC);
472dbc45 JB	211	IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC);
9f42f607 LCC	212
	213	/* Mesh parameters */
	214	IEEE80211_IF_WFILE(dot11MeshMaxRetries,
472dbc45	215	u.mesh.mshcfg.dot11MeshMaxRetries, DEC, u8);
9f42f607	216	IEEE80211_IF_WFILE(dot11MeshRetryTimeout,
472dbc45	217	u.mesh.mshcfg.dot11MeshRetryTimeout, DEC, u16);
9f42f607	218	IEEE80211_IF_WFILE(dot11MeshConfirmTimeout,
472dbc45	219	u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC, u16);
9f42f607	220	IEEE80211_IF_WFILE(dot11MeshHoldingTimeout,
472dbc45 JB	221	u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC, u16);
	222	IEEE80211_IF_WFILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC, u8);
	223	IEEE80211_IF_WFILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC, u8);
9f42f607	224	IEEE80211_IF_WFILE(dot11MeshMaxPeerLinks,
472dbc45	225	u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC, u16);
9f42f607	226	IEEE80211_IF_WFILE(dot11MeshHWMPactivePathTimeout,
472dbc45	227	u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC, u32);
9f42f607	228	IEEE80211_IF_WFILE(dot11MeshHWMPpreqMinInterval,
472dbc45	229	u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC, u16);
9f42f607	230	IEEE80211_IF_WFILE(dot11MeshHWMPnetDiameterTraversalTime,
472dbc45	231	u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC, u16);
9f42f607	232	IEEE80211_IF_WFILE(dot11MeshHWMPmaxPREQretries,
472dbc45	233	u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC, u8);
9f42f607	234	IEEE80211_IF_WFILE(path_refresh_time,
472dbc45	235	u.mesh.mshcfg.path_refresh_time, DEC, u32);
9f42f607	236	IEEE80211_IF_WFILE(min_discovery_timeout,
472dbc45	237	u.mesh.mshcfg.min_discovery_timeout, DEC, u16);
9f42f607 LCC	238	#endif
	239
	240
e9f207f0	241	#define DEBUGFS_ADD(name, type)\
bebb8a5e	242	sdata->debugfs.type.name = debugfs_create_file(#name, 0400,\
e9f207f0 JB	243	sdata->debugfsdir, sdata, &name##_ops);
	244
	245	static void add_sta_files(struct ieee80211_sub_if_data *sdata)
	246	{
e9f207f0	247	DEBUGFS_ADD(drop_unencrypted, sta);
93015f0f JM	248	DEBUGFS_ADD(force_unicast_rateidx, sta);
93015f0f JM	249	DEBUGFS_ADD(max_ratectrl_rateidx, sta);
3e122be0	250
e9f207f0 JB	251	DEBUGFS_ADD(state, sta);
	252	DEBUGFS_ADD(bssid, sta);
	253	DEBUGFS_ADD(prev_bssid, sta);
	254	DEBUGFS_ADD(ssid_len, sta);
	255	DEBUGFS_ADD(aid, sta);
	256	DEBUGFS_ADD(ap_capab, sta);
	257	DEBUGFS_ADD(capab, sta);
	258	DEBUGFS_ADD(extra_ie_len, sta);
	259	DEBUGFS_ADD(auth_tries, sta);
	260	DEBUGFS_ADD(assoc_tries, sta);
	261	DEBUGFS_ADD(auth_algs, sta);
	262	DEBUGFS_ADD(auth_alg, sta);
	263	DEBUGFS_ADD(auth_transaction, sta);
	264	DEBUGFS_ADD(flags, sta);
	265	}
	266
	267	static void add_ap_files(struct ieee80211_sub_if_data *sdata)
	268	{
e9f207f0	269	DEBUGFS_ADD(drop_unencrypted, ap);
3e122be0 JB	270	DEBUGFS_ADD(force_unicast_rateidx, ap);
	271	DEBUGFS_ADD(max_ratectrl_rateidx, ap);
	272
e9f207f0	273	DEBUGFS_ADD(num_sta_ps, ap);
e9f207f0	274	DEBUGFS_ADD(dtim_count, ap);
e9f207f0	275	DEBUGFS_ADD(num_buffered_multicast, ap);
e9f207f0 JB	276	}
	277
	278	static void add_wds_files(struct ieee80211_sub_if_data *sdata)
	279	{
e9f207f0	280	DEBUGFS_ADD(drop_unencrypted, wds);
93015f0f JM	281	DEBUGFS_ADD(force_unicast_rateidx, wds);
93015f0f JM	282	DEBUGFS_ADD(max_ratectrl_rateidx, wds);
3e122be0	283
e9f207f0 JB	284	DEBUGFS_ADD(peer, wds);
	285	}
	286
	287	static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
	288	{
e9f207f0	289	DEBUGFS_ADD(drop_unencrypted, vlan);
93015f0f JM	290	DEBUGFS_ADD(force_unicast_rateidx, vlan);
93015f0f JM	291	DEBUGFS_ADD(max_ratectrl_rateidx, vlan);
e9f207f0 JB	292	}
	293
	294	static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
	295	{
e9f207f0 JB	296	}
e9f207f0 JB	297
9f42f607 LCC	298	#ifdef CONFIG_MAC80211_MESH
9f42f607 LCC	299	#define MESHSTATS_ADD(name)\
bebb8a5e	300	sdata->mesh_stats.name = debugfs_create_file(#name, 0400,\
9f42f607 LCC	301	sdata->mesh_stats_dir, sdata, &name##_ops);
	302
	303	static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
	304	{
	305	sdata->mesh_stats_dir = debugfs_create_dir("mesh_stats",
	306	sdata->debugfsdir);
	307	MESHSTATS_ADD(fwded_frames);
	308	MESHSTATS_ADD(dropped_frames_ttl);
	309	MESHSTATS_ADD(dropped_frames_no_route);
	310	MESHSTATS_ADD(estab_plinks);
	311	}
	312
	313	#define MESHPARAMS_ADD(name)\
bebb8a5e	314	sdata->mesh_config.name = debugfs_create_file(#name, 0600,\
9f42f607 LCC	315	sdata->mesh_config_dir, sdata, &name##_ops);
	316
	317	static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
	318	{
	319	sdata->mesh_config_dir = debugfs_create_dir("mesh_config",
	320	sdata->debugfsdir);
	321	MESHPARAMS_ADD(dot11MeshMaxRetries);
	322	MESHPARAMS_ADD(dot11MeshRetryTimeout);
	323	MESHPARAMS_ADD(dot11MeshConfirmTimeout);
	324	MESHPARAMS_ADD(dot11MeshHoldingTimeout);
	325	MESHPARAMS_ADD(dot11MeshTTL);
	326	MESHPARAMS_ADD(auto_open_plinks);
	327	MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
	328	MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
	329	MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
	330	MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
	331	MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
	332	MESHPARAMS_ADD(path_refresh_time);
	333	MESHPARAMS_ADD(min_discovery_timeout);
	334	}
	335	#endif
	336
e9f207f0 JB	337	static void add_files(struct ieee80211_sub_if_data *sdata)
	338	{
	339	if (!sdata->debugfsdir)
	340	return;
	341
51fb61e7	342	switch (sdata->vif.type) {
05c914fe	343	case NL80211_IFTYPE_MESH_POINT:
9f42f607 LCC	344	#ifdef CONFIG_MAC80211_MESH
	345	add_mesh_stats(sdata);
	346	add_mesh_config(sdata);
	347	#endif
472dbc45	348	break;
05c914fe JB	349	case NL80211_IFTYPE_STATION:
05c914fe JB	350	case NL80211_IFTYPE_ADHOC:
e9f207f0 JB	351	add_sta_files(sdata);
e9f207f0 JB	352	break;
05c914fe	353	case NL80211_IFTYPE_AP:
e9f207f0 JB	354	add_ap_files(sdata);
e9f207f0 JB	355	break;
05c914fe	356	case NL80211_IFTYPE_WDS:
e9f207f0 JB	357	add_wds_files(sdata);
e9f207f0 JB	358	break;
05c914fe	359	case NL80211_IFTYPE_MONITOR:
e9f207f0 JB	360	add_monitor_files(sdata);
e9f207f0 JB	361	break;
05c914fe	362	case NL80211_IFTYPE_AP_VLAN:
e9f207f0 JB	363	add_vlan_files(sdata);
	364	break;
	365	default:
	366	break;
	367	}
	368	}
	369
21887b2f ZY	370	#define DEBUGFS_DEL(name, type) \
	371	do { \
	372	debugfs_remove(sdata->debugfs.type.name); \
	373	sdata->debugfs.type.name = NULL; \
	374	} while (0)
e9f207f0 JB	375
	376	static void del_sta_files(struct ieee80211_sub_if_data *sdata)
	377	{
e9f207f0	378	DEBUGFS_DEL(drop_unencrypted, sta);
93015f0f JM	379	DEBUGFS_DEL(force_unicast_rateidx, sta);
93015f0f JM	380	DEBUGFS_DEL(max_ratectrl_rateidx, sta);
3e122be0	381
e9f207f0 JB	382	DEBUGFS_DEL(state, sta);
	383	DEBUGFS_DEL(bssid, sta);
	384	DEBUGFS_DEL(prev_bssid, sta);
	385	DEBUGFS_DEL(ssid_len, sta);
	386	DEBUGFS_DEL(aid, sta);
	387	DEBUGFS_DEL(ap_capab, sta);
	388	DEBUGFS_DEL(capab, sta);
	389	DEBUGFS_DEL(extra_ie_len, sta);
	390	DEBUGFS_DEL(auth_tries, sta);
	391	DEBUGFS_DEL(assoc_tries, sta);
	392	DEBUGFS_DEL(auth_algs, sta);
	393	DEBUGFS_DEL(auth_alg, sta);
	394	DEBUGFS_DEL(auth_transaction, sta);
	395	DEBUGFS_DEL(flags, sta);
	396	}
	397
	398	static void del_ap_files(struct ieee80211_sub_if_data *sdata)
	399	{
e9f207f0	400	DEBUGFS_DEL(drop_unencrypted, ap);
3e122be0 JB	401	DEBUGFS_DEL(force_unicast_rateidx, ap);
	402	DEBUGFS_DEL(max_ratectrl_rateidx, ap);
	403
e9f207f0	404	DEBUGFS_DEL(num_sta_ps, ap);
e9f207f0	405	DEBUGFS_DEL(dtim_count, ap);
e9f207f0	406	DEBUGFS_DEL(num_buffered_multicast, ap);
e9f207f0 JB	407	}
	408
	409	static void del_wds_files(struct ieee80211_sub_if_data *sdata)
	410	{
e9f207f0	411	DEBUGFS_DEL(drop_unencrypted, wds);
93015f0f JM	412	DEBUGFS_DEL(force_unicast_rateidx, wds);
93015f0f JM	413	DEBUGFS_DEL(max_ratectrl_rateidx, wds);
3e122be0	414
e9f207f0 JB	415	DEBUGFS_DEL(peer, wds);
	416	}
	417
	418	static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
	419	{
e9f207f0	420	DEBUGFS_DEL(drop_unencrypted, vlan);
93015f0f JM	421	DEBUGFS_DEL(force_unicast_rateidx, vlan);
93015f0f JM	422	DEBUGFS_DEL(max_ratectrl_rateidx, vlan);
e9f207f0 JB	423	}
	424
	425	static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
	426	{
e9f207f0 JB	427	}
e9f207f0 JB	428
9f42f607 LCC	429	#ifdef CONFIG_MAC80211_MESH
	430	#define MESHSTATS_DEL(name) \
	431	do { \
	432	debugfs_remove(sdata->mesh_stats.name); \
	433	sdata->mesh_stats.name = NULL; \
	434	} while (0)
	435
	436	static void del_mesh_stats(struct ieee80211_sub_if_data *sdata)
	437	{
	438	MESHSTATS_DEL(fwded_frames);
	439	MESHSTATS_DEL(dropped_frames_ttl);
	440	MESHSTATS_DEL(dropped_frames_no_route);
	441	MESHSTATS_DEL(estab_plinks);
	442	debugfs_remove(sdata->mesh_stats_dir);
	443	sdata->mesh_stats_dir = NULL;
	444	}
	445
	446	#define MESHPARAMS_DEL(name) \
	447	do { \
	448	debugfs_remove(sdata->mesh_config.name); \
	449	sdata->mesh_config.name = NULL; \
	450	} while (0)
	451
	452	static void del_mesh_config(struct ieee80211_sub_if_data *sdata)
	453	{
	454	MESHPARAMS_DEL(dot11MeshMaxRetries);
	455	MESHPARAMS_DEL(dot11MeshRetryTimeout);
	456	MESHPARAMS_DEL(dot11MeshConfirmTimeout);
	457	MESHPARAMS_DEL(dot11MeshHoldingTimeout);
	458	MESHPARAMS_DEL(dot11MeshTTL);
	459	MESHPARAMS_DEL(auto_open_plinks);
	460	MESHPARAMS_DEL(dot11MeshMaxPeerLinks);
	461	MESHPARAMS_DEL(dot11MeshHWMPactivePathTimeout);
	462	MESHPARAMS_DEL(dot11MeshHWMPpreqMinInterval);
	463	MESHPARAMS_DEL(dot11MeshHWMPnetDiameterTraversalTime);
	464	MESHPARAMS_DEL(dot11MeshHWMPmaxPREQretries);
	465	MESHPARAMS_DEL(path_refresh_time);
	466	MESHPARAMS_DEL(min_discovery_timeout);
	467	debugfs_remove(sdata->mesh_config_dir);
	468	sdata->mesh_config_dir = NULL;
	469	}
	470	#endif
	471
75636525	472	static void del_files(struct ieee80211_sub_if_data *sdata)
e9f207f0 JB	473	{
	474	if (!sdata->debugfsdir)
	475	return;
	476
75636525	477	switch (sdata->vif.type) {
05c914fe	478	case NL80211_IFTYPE_MESH_POINT:
9f42f607 LCC	479	#ifdef CONFIG_MAC80211_MESH
	480	del_mesh_stats(sdata);
	481	del_mesh_config(sdata);
	482	#endif
472dbc45	483	break;
05c914fe JB	484	case NL80211_IFTYPE_STATION:
05c914fe JB	485	case NL80211_IFTYPE_ADHOC:
e9f207f0 JB	486	del_sta_files(sdata);
e9f207f0 JB	487	break;
05c914fe	488	case NL80211_IFTYPE_AP:
e9f207f0 JB	489	del_ap_files(sdata);
e9f207f0 JB	490	break;
05c914fe	491	case NL80211_IFTYPE_WDS:
e9f207f0 JB	492	del_wds_files(sdata);
e9f207f0 JB	493	break;
05c914fe	494	case NL80211_IFTYPE_MONITOR:
e9f207f0 JB	495	del_monitor_files(sdata);
e9f207f0 JB	496	break;
05c914fe	497	case NL80211_IFTYPE_AP_VLAN:
e9f207f0 JB	498	del_vlan_files(sdata);
	499	break;
	500	default:
	501	break;
	502	}
	503	}
	504
	505	static int notif_registered;
	506
	507	void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
	508	{
	509	char buf[10+IFNAMSIZ];
	510
	511	if (!notif_registered)
	512	return;
	513
	514	sprintf(buf, "netdev:%s", sdata->dev->name);
	515	sdata->debugfsdir = debugfs_create_dir(buf,
	516	sdata->local->hw.wiphy->debugfsdir);
75636525	517	add_files(sdata);
e9f207f0 JB	518	}
	519
	520	void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
	521	{
75636525	522	del_files(sdata);
e9f207f0 JB	523	debugfs_remove(sdata->debugfsdir);
	524	sdata->debugfsdir = NULL;
	525	}
	526
988c0f72	527	static int netdev_notify(struct notifier_block *nb,
e9f207f0 JB	528	unsigned long state,
	529	void *ndev)
	530	{
	531	struct net_device *dev = ndev;
7c8081eb	532	struct dentry *dir;
3e122be0	533	struct ieee80211_sub_if_data *sdata;
e9f207f0 JB	534	char buf[10+IFNAMSIZ];
	535
	536	if (state != NETDEV_CHANGENAME)
	537	return 0;
	538
	539	if (!dev->ieee80211_ptr \|\| !dev->ieee80211_ptr->wiphy)
	540	return 0;
	541
	542	if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
	543	return 0;
	544
3e122be0 JB	545	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3e122be0 JB	546
7c8081eb	547	dir = sdata->debugfsdir;
c74e90a9 JB	548
	549	if (!dir)
	550	return 0;
	551
	552	sprintf(buf, "netdev:%s", dev->name);
7c8081eb JB	553	if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
	554	printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
	555	"dir to %s\n", buf);
e9f207f0 JB	556
	557	return 0;
	558	}
	559
	560	static struct notifier_block mac80211_debugfs_netdev_notifier = {
	561	.notifier_call = netdev_notify,
	562	};
	563
	564	void ieee80211_debugfs_netdev_init(void)
	565	{
	566	int err;
	567
	568	err = register_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
	569	if (err) {
	570	printk(KERN_ERR
	571	"mac80211: failed to install netdev notifier,"
	572	" disabling per-netdev debugfs!\n");
	573	} else
	574	notif_registered = 1;
	575	}
	576
	577	void ieee80211_debugfs_netdev_exit(void)
	578	{
	579	unregister_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
	580	notif_registered = 0;
	581	}