[linux-2.6-block.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/slab.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 >= 0)
		ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);

	return ret;
}

static ssize_t ieee80211_if_write(
	struct ieee80211_sub_if_data *sdata,
	const char __user *userbuf,
	size_t count, loff_t *ppos,
	ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int))
{
	u8 *buf;
	ssize_t ret;

	buf = kmalloc(count, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	ret = -EFAULT;
	if (copy_from_user(buf, userbuf, count))
		goto freebuf;

	ret = -ENODEV;
	rtnl_lock();
	if (sdata->dev->reg_state == NETREG_REGISTERED)
		ret = (*write)(sdata, buf, count);
	rtnl_unlock();

freebuf:
	kfree(buf);
	return ret;
}

#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_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_LHEX(name, field)				\
		IEEE80211_IF_FMT(name, field, "%#lx\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_FMT_DEC_DIV_16(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", sdata->field / 16);	\
}

#define __IEEE80211_IF_FILE(name, _write)				\
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,				\
	.write = (_write),						\
	.open = mac80211_open_file_generic,				\
	.llseek = generic_file_llseek,					\
}

#define __IEEE80211_IF_FILE_W(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_parse_##name);	\
}									\
__IEEE80211_IF_FILE(name, ieee80211_if_write_##name)


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

/* common attributes */
IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
		  HEX);
IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
		  HEX);
IEEE80211_IF_FILE(flags, flags, HEX);
IEEE80211_IF_FILE(state, state, LHEX);
IEEE80211_IF_FILE(channel_type, vif.bss_conf.channel_type, DEC);

/* STA attributes */
IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
IEEE80211_IF_FILE(last_beacon, u.mgd.last_beacon_signal, DEC);
IEEE80211_IF_FILE(ave_beacon, u.mgd.ave_beacon_signal, DEC_DIV_16);

static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
			      enum ieee80211_smps_mode smps_mode)
{
	struct ieee80211_local *local = sdata->local;
	int err;

	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS) &&
	    smps_mode == IEEE80211_SMPS_STATIC)
		return -EINVAL;

	/* auto should be dynamic if in PS mode */
	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS) &&
	    (smps_mode == IEEE80211_SMPS_DYNAMIC ||
	     smps_mode == IEEE80211_SMPS_AUTOMATIC))
		return -EINVAL;

	/* supported only on managed interfaces for now */
	if (sdata->vif.type != NL80211_IFTYPE_STATION)
		return -EOPNOTSUPP;

	mutex_lock(&sdata->u.mgd.mtx);
	err = __ieee80211_request_smps(sdata, smps_mode);
	mutex_unlock(&sdata->u.mgd.mtx);

	return err;
}

static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
	[IEEE80211_SMPS_AUTOMATIC] = "auto",
	[IEEE80211_SMPS_OFF] = "off",
	[IEEE80211_SMPS_STATIC] = "static",
	[IEEE80211_SMPS_DYNAMIC] = "dynamic",
};

static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
				     char *buf, int buflen)
{
	if (sdata->vif.type != NL80211_IFTYPE_STATION)
		return -EOPNOTSUPP;

	return snprintf(buf, buflen, "request: %s\nused: %s\n",
			smps_modes[sdata->u.mgd.req_smps],
			smps_modes[sdata->u.mgd.ap_smps]);
}

static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
				       const char *buf, int buflen)
{
	enum ieee80211_smps_mode mode;

	for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
		if (strncmp(buf, smps_modes[mode], buflen) == 0) {
			int err = ieee80211_set_smps(sdata, mode);
			if (!err)
				return buflen;
			return err;
		}
	}

	return -EINVAL;
}

__IEEE80211_IF_FILE_W(smps);

static ssize_t ieee80211_if_fmt_tkip_mic_test(
	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
	return -EOPNOTSUPP;
}

static int hwaddr_aton(const char *txt, u8 *addr)
{
	int i;

	for (i = 0; i < ETH_ALEN; i++) {
		int a, b;

		a = hex_to_bin(*txt++);
		if (a < 0)
			return -1;
		b = hex_to_bin(*txt++);
		if (b < 0)
			return -1;
		*addr++ = (a << 4) | b;
		if (i < 5 && *txt++ != ':')
			return -1;
	}

	return 0;
}

static ssize_t ieee80211_if_parse_tkip_mic_test(
	struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
{
	struct ieee80211_local *local = sdata->local;
	u8 addr[ETH_ALEN];
	struct sk_buff *skb;
	struct ieee80211_hdr *hdr;
	__le16 fc;

	/*
	 * Assume colon-delimited MAC address with possible white space
	 * following.
	 */
	if (buflen < 3 * ETH_ALEN - 1)
		return -EINVAL;
	if (hwaddr_aton(buf, addr) < 0)
		return -EINVAL;

	if (!ieee80211_sdata_running(sdata))
		return -ENOTCONN;

	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
	if (!skb)
		return -ENOMEM;
	skb_reserve(skb, local->hw.extra_tx_headroom);

	hdr = (struct ieee80211_hdr *) skb_put(skb, 24);
	memset(hdr, 0, 24);
	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);

	switch (sdata->vif.type) {
	case NL80211_IFTYPE_AP:
		fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
		/* DA BSSID SA */
		memcpy(hdr->addr1, addr, ETH_ALEN);
		memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
		memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
		break;
	case NL80211_IFTYPE_STATION:
		fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
		/* BSSID SA DA */
		if (sdata->vif.bss_conf.bssid == NULL) {
			dev_kfree_skb(skb);
			return -ENOTCONN;
		}
		memcpy(hdr->addr1, sdata->vif.bss_conf.bssid, ETH_ALEN);
		memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
		memcpy(hdr->addr3, addr, ETH_ALEN);
		break;
	default:
		dev_kfree_skb(skb);
		return -EOPNOTSUPP;
	}
	hdr->frame_control = fc;

	/*
	 * Add some length to the test frame to make it look bit more valid.
	 * The exact contents does not matter since the recipient is required
	 * to drop this because of the Michael MIC failure.
	 */
	memset(skb_put(skb, 50), 0, 50);

	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;

	ieee80211_tx_skb(sdata, skb);

	return buflen;
}

__IEEE80211_IF_FILE_W(tkip_mic_test);

/* 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, NULL);

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

#ifdef CONFIG_MAC80211_MESH
/* Mesh stats attributes */
IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
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_FILE(dot11MeshMaxRetries,
		u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
IEEE80211_IF_FILE(dot11MeshRetryTimeout,
		u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
		u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
		u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
		u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
		u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
		u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
		u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
		u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
IEEE80211_IF_FILE(path_refresh_time,
		u.mesh.mshcfg.path_refresh_time, DEC);
IEEE80211_IF_FILE(min_discovery_timeout,
		u.mesh.mshcfg.min_discovery_timeout, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
		u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
#endif


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

#define DEBUGFS_ADD_MODE(name, mode) \
	debugfs_create_file(#name, mode, sdata->debugfs.dir, \
			    sdata, &name##_ops);

static void add_sta_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(drop_unencrypted);
	DEBUGFS_ADD(flags);
	DEBUGFS_ADD(state);
	DEBUGFS_ADD(channel_type);
	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
	DEBUGFS_ADD(rc_rateidx_mask_5ghz);

	DEBUGFS_ADD(bssid);
	DEBUGFS_ADD(aid);
	DEBUGFS_ADD(last_beacon);
	DEBUGFS_ADD(ave_beacon);
	DEBUGFS_ADD_MODE(smps, 0600);
	DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
}

static void add_ap_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(drop_unencrypted);
	DEBUGFS_ADD(flags);
	DEBUGFS_ADD(state);
	DEBUGFS_ADD(channel_type);
	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
	DEBUGFS_ADD(rc_rateidx_mask_5ghz);

	DEBUGFS_ADD(num_sta_ps);
	DEBUGFS_ADD(dtim_count);
	DEBUGFS_ADD(num_buffered_multicast);
	DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
}

static void add_wds_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(drop_unencrypted);
	DEBUGFS_ADD(flags);
	DEBUGFS_ADD(state);
	DEBUGFS_ADD(channel_type);
	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
	DEBUGFS_ADD(rc_rateidx_mask_5ghz);

	DEBUGFS_ADD(peer);
}

static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(drop_unencrypted);
	DEBUGFS_ADD(flags);
	DEBUGFS_ADD(state);
	DEBUGFS_ADD(channel_type);
	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
}

static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(flags);
	DEBUGFS_ADD(state);
	DEBUGFS_ADD(channel_type);
}

#ifdef CONFIG_MAC80211_MESH

static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
{
	struct dentry *dir = debugfs_create_dir("mesh_stats",
						sdata->debugfs.dir);

#define MESHSTATS_ADD(name)\
	debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);

	MESHSTATS_ADD(fwded_mcast);
	MESHSTATS_ADD(fwded_unicast);
	MESHSTATS_ADD(fwded_frames);
	MESHSTATS_ADD(dropped_frames_ttl);
	MESHSTATS_ADD(dropped_frames_no_route);
	MESHSTATS_ADD(estab_plinks);
#undef MESHSTATS_ADD
}

static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
{
	struct dentry *dir = debugfs_create_dir("mesh_config",
						sdata->debugfs.dir);

#define MESHPARAMS_ADD(name) \
	debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);

	MESHPARAMS_ADD(dot11MeshMaxRetries);
	MESHPARAMS_ADD(dot11MeshRetryTimeout);
	MESHPARAMS_ADD(dot11MeshConfirmTimeout);
	MESHPARAMS_ADD(dot11MeshHoldingTimeout);
	MESHPARAMS_ADD(dot11MeshTTL);
	MESHPARAMS_ADD(element_ttl);
	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);

#undef MESHPARAMS_ADD
}
#endif

static void add_files(struct ieee80211_sub_if_data *sdata)
{
	if (!sdata->debugfs.dir)
		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:
		add_sta_files(sdata);
		break;
	case NL80211_IFTYPE_ADHOC:
		/* XXX */
		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;
	}
}

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

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

void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
{
	if (!sdata->debugfs.dir)
		return;

	debugfs_remove_recursive(sdata->debugfs.dir);
	sdata->debugfs.dir = NULL;
}

void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
{
	struct dentry *dir;
	char buf[10 + IFNAMSIZ];

	dir = sdata->debugfs.dir;

	if (!dir)
		return;

	sprintf(buf, "netdev:%s", sdata->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);
}
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>
5a0e3ad6	16	#include <linux/slab.h>
e9f207f0 JB	17	#include <linux/notifier.h>
	18	#include <net/mac80211.h>
	19	#include <net/cfg80211.h>
	20	#include "ieee80211_i.h"
2c8dccc7	21	#include "rate.h"
e9f207f0 JB	22	#include "debugfs.h"
	23	#include "debugfs_netdev.h"
	24
	25	static ssize_t ieee80211_if_read(
	26	struct ieee80211_sub_if_data *sdata,
	27	char __user *userbuf,
	28	size_t count, loff_t *ppos,
	29	ssize_t (format)(const struct ieee80211_sub_if_data , char *, int))
	30	{
	31	char buf[70];
	32	ssize_t ret = -EINVAL;
	33
	34	read_lock(&dev_base_lock);
73bb3e4a	35	if (sdata->dev->reg_state == NETREG_REGISTERED)
e9f207f0	36	ret = (*format)(sdata, buf, sizeof(buf));
e9f207f0	37	read_unlock(&dev_base_lock);
73bb3e4a	38
681d1190	39	if (ret >= 0)
73bb3e4a LCC	40	ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
73bb3e4a LCC	41
e9f207f0 JB	42	return ret;
	43	}
	44
0f78231b JB	45	static ssize_t ieee80211_if_write(
	46	struct ieee80211_sub_if_data *sdata,
	47	const char __user *userbuf,
	48	size_t count, loff_t *ppos,
	49	ssize_t (write)(struct ieee80211_sub_if_data , const char *, int))
	50	{
	51	u8 *buf;
51f5f8ca	52	ssize_t ret;
0f78231b	53
51f5f8ca	54	buf = kmalloc(count, GFP_KERNEL);
0f78231b JB	55	if (!buf)
	56	return -ENOMEM;
	57
51f5f8ca	58	ret = -EFAULT;
0f78231b	59	if (copy_from_user(buf, userbuf, count))
51f5f8ca	60	goto freebuf;
0f78231b	61
51f5f8ca	62	ret = -ENODEV;
0f78231b JB	63	rtnl_lock();
	64	if (sdata->dev->reg_state == NETREG_REGISTERED)
	65	ret = (*write)(sdata, buf, count);
	66	rtnl_unlock();
	67
51f5f8ca ED	68	freebuf:
51f5f8ca ED	69	kfree(buf);
0f78231b JB	70	return ret;
	71	}
	72
e9f207f0 JB	73	#define IEEE80211_IF_FMT(name, field, format_string) \
	74	static ssize_t ieee80211_if_fmt_##name( \
	75	const struct ieee80211_sub_if_data sdata, char buf, \
	76	int buflen) \
	77	{ \
	78	return scnprintf(buf, buflen, format_string, sdata->field); \
	79	}
	80	#define IEEE80211_IF_FMT_DEC(name, field) \
	81	IEEE80211_IF_FMT(name, field, "%d\n")
	82	#define IEEE80211_IF_FMT_HEX(name, field) \
	83	IEEE80211_IF_FMT(name, field, "%#x\n")
4914b3bb BG	84	#define IEEE80211_IF_FMT_LHEX(name, field) \
4914b3bb BG	85	IEEE80211_IF_FMT(name, field, "%#lx\n")
e9f207f0 JB	86	#define IEEE80211_IF_FMT_SIZE(name, field) \
	87	IEEE80211_IF_FMT(name, field, "%zd\n")
	88
	89	#define IEEE80211_IF_FMT_ATOMIC(name, field) \
	90	static ssize_t ieee80211_if_fmt_##name( \
	91	const struct ieee80211_sub_if_data *sdata, \
	92	char *buf, int buflen) \
	93	{ \
	94	return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
	95	}
	96
	97	#define IEEE80211_IF_FMT_MAC(name, field) \
	98	static ssize_t ieee80211_if_fmt_##name( \
	99	const struct ieee80211_sub_if_data sdata, char buf, \
	100	int buflen) \
	101	{ \
0c68ae26	102	return scnprintf(buf, buflen, "%pM\n", sdata->field); \
e9f207f0 JB	103	}
e9f207f0 JB	104
17e4ec14 JM	105	#define IEEE80211_IF_FMT_DEC_DIV_16(name, field) \
	106	static ssize_t ieee80211_if_fmt_##name( \
	107	const struct ieee80211_sub_if_data *sdata, \
	108	char *buf, int buflen) \
	109	{ \
	110	return scnprintf(buf, buflen, "%d\n", sdata->field / 16); \
	111	}
	112
0f78231b	113	#define __IEEE80211_IF_FILE(name, _write) \
e9f207f0 JB	114	static ssize_t ieee80211_if_read_##name(struct file *file, \
	115	char __user *userbuf, \
	116	size_t count, loff_t *ppos) \
	117	{ \
	118	return ieee80211_if_read(file->private_data, \
	119	userbuf, count, ppos, \
	120	ieee80211_if_fmt_##name); \
	121	} \
	122	static const struct file_operations name##_ops = { \
	123	.read = ieee80211_if_read_##name, \
0f78231b	124	.write = (_write), \
e9f207f0	125	.open = mac80211_open_file_generic, \
2b18ab36	126	.llseek = generic_file_llseek, \
e9f207f0 JB	127	}
e9f207f0 JB	128
0f78231b JB	129	#define __IEEE80211_IF_FILE_W(name) \
	130	static ssize_t ieee80211_if_write_##name(struct file *file, \
	131	const char __user *userbuf, \
	132	size_t count, loff_t *ppos) \
	133	{ \
	134	return ieee80211_if_write(file->private_data, userbuf, count, \
	135	ppos, ieee80211_if_parse_##name); \
	136	} \
	137	__IEEE80211_IF_FILE(name, ieee80211_if_write_##name)
	138
	139
e9f207f0 JB	140	#define IEEE80211_IF_FILE(name, field, format) \
e9f207f0 JB	141	IEEE80211_IF_FMT_##format(name, field) \
0f78231b	142	__IEEE80211_IF_FILE(name, NULL)
e9f207f0 JB	143
e9f207f0 JB	144	/* common attributes */
e9f207f0	145	IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
37eb0b16 JM	146	IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
	147	HEX);
	148	IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
	149	HEX);
4914b3bb BG	150	IEEE80211_IF_FILE(flags, flags, HEX);
4914b3bb BG	151	IEEE80211_IF_FILE(state, state, LHEX);
0fa025f0	152	IEEE80211_IF_FILE(channel_type, vif.bss_conf.channel_type, DEC);
e9f207f0	153
46900298	154	/* STA attributes */
46900298	155	IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
46900298	156	IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
17e4ec14 JM	157	IEEE80211_IF_FILE(last_beacon, u.mgd.last_beacon_signal, DEC);
17e4ec14 JM	158	IEEE80211_IF_FILE(ave_beacon, u.mgd.ave_beacon_signal, DEC_DIV_16);
e9f207f0	159
0f78231b JB	160	static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
	161	enum ieee80211_smps_mode smps_mode)
	162	{
	163	struct ieee80211_local *local = sdata->local;
	164	int err;
	165
	166	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS) &&
	167	smps_mode == IEEE80211_SMPS_STATIC)
	168	return -EINVAL;
	169
	170	/* auto should be dynamic if in PS mode */
	171	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS) &&
	172	(smps_mode == IEEE80211_SMPS_DYNAMIC \|\|
	173	smps_mode == IEEE80211_SMPS_AUTOMATIC))
	174	return -EINVAL;
	175
	176	/* supported only on managed interfaces for now */
	177	if (sdata->vif.type != NL80211_IFTYPE_STATION)
	178	return -EOPNOTSUPP;
	179
243e6df4	180	mutex_lock(&sdata->u.mgd.mtx);
0f78231b	181	err = __ieee80211_request_smps(sdata, smps_mode);
243e6df4	182	mutex_unlock(&sdata->u.mgd.mtx);
0f78231b JB	183
	184	return err;
	185	}
	186
	187	static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
	188	[IEEE80211_SMPS_AUTOMATIC] = "auto",
	189	[IEEE80211_SMPS_OFF] = "off",
	190	[IEEE80211_SMPS_STATIC] = "static",
	191	[IEEE80211_SMPS_DYNAMIC] = "dynamic",
	192	};
	193
	194	static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
	195	char *buf, int buflen)
	196	{
	197	if (sdata->vif.type != NL80211_IFTYPE_STATION)
	198	return -EOPNOTSUPP;
	199
	200	return snprintf(buf, buflen, "request: %s\nused: %s\n",
	201	smps_modes[sdata->u.mgd.req_smps],
	202	smps_modes[sdata->u.mgd.ap_smps]);
	203	}
	204
	205	static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
	206	const char *buf, int buflen)
	207	{
	208	enum ieee80211_smps_mode mode;
	209
	210	for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
	211	if (strncmp(buf, smps_modes[mode], buflen) == 0) {
	212	int err = ieee80211_set_smps(sdata, mode);
	213	if (!err)
	214	return buflen;
	215	return err;
	216	}
	217	}
	218
	219	return -EINVAL;
	220	}
	221
	222	__IEEE80211_IF_FILE_W(smps);
	223
681d1190 JM	224	static ssize_t ieee80211_if_fmt_tkip_mic_test(
	225	const struct ieee80211_sub_if_data sdata, char buf, int buflen)
	226	{
	227	return -EOPNOTSUPP;
	228	}
	229
	230	static int hwaddr_aton(const char txt, u8 addr)
	231	{
	232	int i;
	233
	234	for (i = 0; i < ETH_ALEN; i++) {
	235	int a, b;
	236
	237	a = hex_to_bin(*txt++);
	238	if (a < 0)
	239	return -1;
	240	b = hex_to_bin(*txt++);
	241	if (b < 0)
	242	return -1;
	243	*addr++ = (a << 4) \| b;
	244	if (i < 5 && *txt++ != ':')
	245	return -1;
	246	}
	247
	248	return 0;
	249	}
	250
	251	static ssize_t ieee80211_if_parse_tkip_mic_test(
	252	struct ieee80211_sub_if_data sdata, const char buf, int buflen)
	253	{
	254	struct ieee80211_local *local = sdata->local;
	255	u8 addr[ETH_ALEN];
	256	struct sk_buff *skb;
	257	struct ieee80211_hdr *hdr;
	258	__le16 fc;
	259
	260	/*
	261	* Assume colon-delimited MAC address with possible white space
	262	* following.
	263	*/
	264	if (buflen < 3 * ETH_ALEN - 1)
	265	return -EINVAL;
	266	if (hwaddr_aton(buf, addr) < 0)
	267	return -EINVAL;
	268
	269	if (!ieee80211_sdata_running(sdata))
	270	return -ENOTCONN;
	271
	272	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
	273	if (!skb)
	274	return -ENOMEM;
	275	skb_reserve(skb, local->hw.extra_tx_headroom);
	276
	277	hdr = (struct ieee80211_hdr *) skb_put(skb, 24);
	278	memset(hdr, 0, 24);
	279	fc = cpu_to_le16(IEEE80211_FTYPE_DATA \| IEEE80211_STYPE_DATA);
	280
	281	switch (sdata->vif.type) {
	282	case NL80211_IFTYPE_AP:
	283	fc \|= cpu_to_le16(IEEE80211_FCTL_FROMDS);
	284	/* DA BSSID SA */
	285	memcpy(hdr->addr1, addr, ETH_ALEN);
	286	memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
	287	memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
288	break;
289	case NL80211_IFTYPE_STATION:
290	fc \|= cpu_to_le16(IEEE80211_FCTL_TODS);
291	/* BSSID SA DA */
292	if (sdata->vif.bss_conf.bssid == NULL) {
293	dev_kfree_skb(skb);
294	return -ENOTCONN;
295	}
296	memcpy(hdr->addr1, sdata->vif.bss_conf.bssid, ETH_ALEN);
297	memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
298	memcpy(hdr->addr3, addr, ETH_ALEN);
299	break;
300	default:
301	dev_kfree_skb(skb);
302	return -EOPNOTSUPP;
303	}
304	hdr->frame_control = fc;
305
306	/*
307	* Add some length to the test frame to make it look bit more valid.
308	* The exact contents does not matter since the recipient is required
309	* to drop this because of the Michael MIC failure.
310	*/
311	memset(skb_put(skb, 50), 0, 50);
312
313	IEEE80211_SKB_CB(skb)->flags \|= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
314
315	ieee80211_tx_skb(sdata, skb);
316
317	return buflen;
318	}
319
320	__IEEE80211_IF_FILE_W(tkip_mic_test);
321
e9f207f0 JB	322	/* AP attributes */
e9f207f0 JB	323	IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
e9f207f0	324	IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
e9f207f0 JB	325
	326	static ssize_t ieee80211_if_fmt_num_buffered_multicast(
	327	const struct ieee80211_sub_if_data sdata, char buf, int buflen)
	328	{
	329	return scnprintf(buf, buflen, "%u\n",
	330	skb_queue_len(&sdata->u.ap.ps_bc_buf));
	331	}
0f78231b	332	__IEEE80211_IF_FILE(num_buffered_multicast, NULL);
e9f207f0	333
e9f207f0 JB	334	/* WDS attributes */
	335	IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
	336
9f42f607 LCC	337	#ifdef CONFIG_MAC80211_MESH
9f42f607 LCC	338	/* Mesh stats attributes */
c8a61a7d DW	339	IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
c8a61a7d DW	340	IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
472dbc45 JB	341	IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
472dbc45 JB	342	IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
9f42f607	343	IEEE80211_IF_FILE(dropped_frames_no_route,
472dbc45 JB	344	u.mesh.mshstats.dropped_frames_no_route, DEC);
472dbc45 JB	345	IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC);
9f42f607 LCC	346
9f42f607 LCC	347	/* Mesh parameters */
36ff382d JB	348	IEEE80211_IF_FILE(dot11MeshMaxRetries,
	349	u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
	350	IEEE80211_IF_FILE(dot11MeshRetryTimeout,
	351	u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
	352	IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
	353	u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
	354	IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
	355	u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
	356	IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
45904f21	357	IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
36ff382d JB	358	IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
	359	IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
	360	u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
	361	IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
	362	u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
	363	IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
	364	u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
	365	IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
	366	u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
	367	IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
	368	u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
	369	IEEE80211_IF_FILE(path_refresh_time,
	370	u.mesh.mshcfg.path_refresh_time, DEC);
	371	IEEE80211_IF_FILE(min_discovery_timeout,
	372	u.mesh.mshcfg.min_discovery_timeout, DEC);
63c5723b RP	373	IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
63c5723b RP	374	u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
9f42f607 LCC	375	#endif
	376
	377
2d46d7c1	378	#define DEBUGFS_ADD(name) \
7bcfaf2f JB	379	debugfs_create_file(#name, 0400, sdata->debugfs.dir, \
7bcfaf2f JB	380	sdata, &name##_ops);
e9f207f0	381
0f78231b JB	382	#define DEBUGFS_ADD_MODE(name, mode) \
	383	debugfs_create_file(#name, mode, sdata->debugfs.dir, \
	384	sdata, &name##_ops);
	385
e9f207f0 JB	386	static void add_sta_files(struct ieee80211_sub_if_data *sdata)
e9f207f0 JB	387	{
2d46d7c1	388	DEBUGFS_ADD(drop_unencrypted);
4914b3bb BG	389	DEBUGFS_ADD(flags);
4914b3bb BG	390	DEBUGFS_ADD(state);
0fa025f0	391	DEBUGFS_ADD(channel_type);
2d46d7c1 JB	392	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
2d46d7c1 JB	393	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
3e122be0	394
2d46d7c1 JB	395	DEBUGFS_ADD(bssid);
2d46d7c1 JB	396	DEBUGFS_ADD(aid);
17e4ec14 JM	397	DEBUGFS_ADD(last_beacon);
17e4ec14 JM	398	DEBUGFS_ADD(ave_beacon);
0f78231b	399	DEBUGFS_ADD_MODE(smps, 0600);
681d1190	400	DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
e9f207f0 JB	401	}
	402
	403	static void add_ap_files(struct ieee80211_sub_if_data *sdata)
	404	{
2d46d7c1	405	DEBUGFS_ADD(drop_unencrypted);
4914b3bb BG	406	DEBUGFS_ADD(flags);
4914b3bb BG	407	DEBUGFS_ADD(state);
0fa025f0	408	DEBUGFS_ADD(channel_type);
2d46d7c1 JB	409	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
2d46d7c1 JB	410	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
3e122be0	411
2d46d7c1 JB	412	DEBUGFS_ADD(num_sta_ps);
	413	DEBUGFS_ADD(dtim_count);
	414	DEBUGFS_ADD(num_buffered_multicast);
681d1190	415	DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
e9f207f0 JB	416	}
	417
	418	static void add_wds_files(struct ieee80211_sub_if_data *sdata)
	419	{
2d46d7c1	420	DEBUGFS_ADD(drop_unencrypted);
4914b3bb BG	421	DEBUGFS_ADD(flags);
4914b3bb BG	422	DEBUGFS_ADD(state);
0fa025f0	423	DEBUGFS_ADD(channel_type);
2d46d7c1 JB	424	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
2d46d7c1 JB	425	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
3e122be0	426
2d46d7c1	427	DEBUGFS_ADD(peer);
e9f207f0 JB	428	}
	429
	430	static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
	431	{
2d46d7c1	432	DEBUGFS_ADD(drop_unencrypted);
4914b3bb BG	433	DEBUGFS_ADD(flags);
4914b3bb BG	434	DEBUGFS_ADD(state);
0fa025f0	435	DEBUGFS_ADD(channel_type);
2d46d7c1 JB	436	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
2d46d7c1 JB	437	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
e9f207f0 JB	438	}
	439
	440	static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
	441	{
4914b3bb BG	442	DEBUGFS_ADD(flags);
4914b3bb BG	443	DEBUGFS_ADD(state);
0fa025f0	444	DEBUGFS_ADD(channel_type);
e9f207f0 JB	445	}
e9f207f0 JB	446
9f42f607	447	#ifdef CONFIG_MAC80211_MESH
9f42f607 LCC	448
	449	static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
	450	{
7bcfaf2f JB	451	struct dentry *dir = debugfs_create_dir("mesh_stats",
	452	sdata->debugfs.dir);
	453
	454	#define MESHSTATS_ADD(name)\
	455	debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
	456
c8a61a7d DW	457	MESHSTATS_ADD(fwded_mcast);
c8a61a7d DW	458	MESHSTATS_ADD(fwded_unicast);
9f42f607 LCC	459	MESHSTATS_ADD(fwded_frames);
	460	MESHSTATS_ADD(dropped_frames_ttl);
	461	MESHSTATS_ADD(dropped_frames_no_route);
	462	MESHSTATS_ADD(estab_plinks);
7bcfaf2f	463	#undef MESHSTATS_ADD
9f42f607 LCC	464	}
9f42f607 LCC	465
9f42f607 LCC	466	static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
9f42f607 LCC	467	{
7bcfaf2f JB	468	struct dentry *dir = debugfs_create_dir("mesh_config",
	469	sdata->debugfs.dir);
	470
	471	#define MESHPARAMS_ADD(name) \
	472	debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
	473
9f42f607 LCC	474	MESHPARAMS_ADD(dot11MeshMaxRetries);
	475	MESHPARAMS_ADD(dot11MeshRetryTimeout);
	476	MESHPARAMS_ADD(dot11MeshConfirmTimeout);
	477	MESHPARAMS_ADD(dot11MeshHoldingTimeout);
	478	MESHPARAMS_ADD(dot11MeshTTL);
45904f21	479	MESHPARAMS_ADD(element_ttl);
9f42f607 LCC	480	MESHPARAMS_ADD(auto_open_plinks);
	481	MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
	482	MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
	483	MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
	484	MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
	485	MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
	486	MESHPARAMS_ADD(path_refresh_time);
	487	MESHPARAMS_ADD(min_discovery_timeout);
7bcfaf2f JB	488
7bcfaf2f JB	489	#undef MESHPARAMS_ADD
9f42f607 LCC	490	}
	491	#endif
	492
e9f207f0 JB	493	static void add_files(struct ieee80211_sub_if_data *sdata)
e9f207f0 JB	494	{
7bcfaf2f	495	if (!sdata->debugfs.dir)
e9f207f0 JB	496	return;
e9f207f0 JB	497
51fb61e7	498	switch (sdata->vif.type) {
05c914fe	499	case NL80211_IFTYPE_MESH_POINT:
9f42f607 LCC	500	#ifdef CONFIG_MAC80211_MESH
	501	add_mesh_stats(sdata);
	502	add_mesh_config(sdata);
	503	#endif
472dbc45	504	break;
05c914fe	505	case NL80211_IFTYPE_STATION:
e9f207f0 JB	506	add_sta_files(sdata);
e9f207f0 JB	507	break;
46900298 JB	508	case NL80211_IFTYPE_ADHOC:
	509	/* XXX */
	510	break;
05c914fe	511	case NL80211_IFTYPE_AP:
e9f207f0 JB	512	add_ap_files(sdata);
e9f207f0 JB	513	break;
05c914fe	514	case NL80211_IFTYPE_WDS:
e9f207f0 JB	515	add_wds_files(sdata);
e9f207f0 JB	516	break;
05c914fe	517	case NL80211_IFTYPE_MONITOR:
e9f207f0 JB	518	add_monitor_files(sdata);
e9f207f0 JB	519	break;
05c914fe	520	case NL80211_IFTYPE_AP_VLAN:
e9f207f0 JB	521	add_vlan_files(sdata);
	522	break;
	523	default:
	524	break;
	525	}
	526	}
	527
e9f207f0 JB	528	void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
	529	{
	530	char buf[10+IFNAMSIZ];
	531
47846c9b	532	sprintf(buf, "netdev:%s", sdata->name);
7bcfaf2f	533	sdata->debugfs.dir = debugfs_create_dir(buf,
e9f207f0	534	sdata->local->hw.wiphy->debugfsdir);
295bafb4 BG	535	if (sdata->debugfs.dir)
	536	sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
	537	sdata->debugfs.dir);
75636525	538	add_files(sdata);
e9f207f0 JB	539	}
	540
	541	void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
	542	{
7bcfaf2f JB	543	if (!sdata->debugfs.dir)
	544	return;
	545
	546	debugfs_remove_recursive(sdata->debugfs.dir);
	547	sdata->debugfs.dir = NULL;
e9f207f0 JB	548	}
e9f207f0 JB	549
47846c9b	550	void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
e9f207f0	551	{
7c8081eb	552	struct dentry *dir;
47846c9b	553	char buf[10 + IFNAMSIZ];
3e122be0	554
7bcfaf2f	555	dir = sdata->debugfs.dir;
c74e90a9 JB	556
c74e90a9 JB	557	if (!dir)
47846c9b	558	return;
c74e90a9	559
47846c9b	560	sprintf(buf, "netdev:%s", sdata->name);
7c8081eb JB	561	if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
	562	printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
	563	"dir to %s\n", buf);
e9f207f0	564	}