[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/notifier.h>
#include <net/mac80211.h>
#include <net/cfg80211.h>
#include "ieee80211_i.h"
#include "ieee80211_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));
		ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
	}
	read_unlock(&dev_base_lock);
	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_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, MAC_FMT "\n", MAC_ARG(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)

/* common attributes */
IEEE80211_IF_FILE(channel_use, channel_use, DEC);
IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
IEEE80211_IF_FILE(eapol, eapol, DEC);
IEEE80211_IF_FILE(ieee8021_x, ieee802_1x, 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.ssid_set ? "SSID\n" : "",
			 sdata->u.sta.bssid_set ? "BSSID\n" : "",
			 sdata->u.sta.prev_bssid_set ? "prev BSSID\n" : "",
			 sdata->u.sta.authenticated ? "AUTH\n" : "",
			 sdata->u.sta.associated ? "ASSOC\n" : "",
			 sdata->u.sta.probereq_poll ? "PROBEREQ POLL\n" : "",
			 sdata->use_protection ? "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_period, u.ap.dtim_period, DEC);
IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC);
IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);
IEEE80211_IF_FILE(max_ratectrl_rateidx, u.ap.max_ratectrl_rateidx, 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);

static ssize_t ieee80211_if_fmt_beacon_head_len(
	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
	if (sdata->u.ap.beacon_head)
		return scnprintf(buf, buflen, "%d\n",
				 sdata->u.ap.beacon_head_len);
	return scnprintf(buf, buflen, "\n");
}
__IEEE80211_IF_FILE(beacon_head_len);

static ssize_t ieee80211_if_fmt_beacon_tail_len(
	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
	if (sdata->u.ap.beacon_tail)
		return scnprintf(buf, buflen, "%d\n",
				 sdata->u.ap.beacon_tail_len);
	return scnprintf(buf, buflen, "\n");
}
__IEEE80211_IF_FILE(beacon_tail_len);

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

/* VLAN attributes */
IEEE80211_IF_FILE(vlan_id, u.vlan.id, DEC);

/* MONITOR attributes */
static ssize_t ieee80211_if_fmt_mode(
	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
	struct ieee80211_local *local = sdata->local;

	return scnprintf(buf, buflen, "%s\n",
			 ((local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) ||
			  local->open_count == local->monitors) ?
			 "hard" : "soft");
}
__IEEE80211_IF_FILE(mode);


#define DEBUGFS_ADD(name, type)\
	sdata->debugfs.type.name = debugfs_create_file(#name, 0444,\
		sdata->debugfsdir, sdata, &name##_ops);

static void add_sta_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(channel_use, sta);
	DEBUGFS_ADD(drop_unencrypted, sta);
	DEBUGFS_ADD(eapol, sta);
	DEBUGFS_ADD(ieee8021_x, 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(channel_use, ap);
	DEBUGFS_ADD(drop_unencrypted, ap);
	DEBUGFS_ADD(eapol, ap);
	DEBUGFS_ADD(ieee8021_x, ap);
	DEBUGFS_ADD(num_sta_ps, ap);
	DEBUGFS_ADD(dtim_period, ap);
	DEBUGFS_ADD(dtim_count, ap);
	DEBUGFS_ADD(num_beacons, ap);
	DEBUGFS_ADD(force_unicast_rateidx, ap);
	DEBUGFS_ADD(max_ratectrl_rateidx, ap);
	DEBUGFS_ADD(num_buffered_multicast, ap);
	DEBUGFS_ADD(beacon_head_len, ap);
	DEBUGFS_ADD(beacon_tail_len, ap);
}

static void add_wds_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(channel_use, wds);
	DEBUGFS_ADD(drop_unencrypted, wds);
	DEBUGFS_ADD(eapol, wds);
	DEBUGFS_ADD(ieee8021_x, wds);
	DEBUGFS_ADD(peer, wds);
}

static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(channel_use, vlan);
	DEBUGFS_ADD(drop_unencrypted, vlan);
	DEBUGFS_ADD(eapol, vlan);
	DEBUGFS_ADD(ieee8021_x, vlan);
	DEBUGFS_ADD(vlan_id, vlan);
}

static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(mode, monitor);
}

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

	switch (sdata->type) {
	case IEEE80211_IF_TYPE_STA:
	case IEEE80211_IF_TYPE_IBSS:
		add_sta_files(sdata);
		break;
	case IEEE80211_IF_TYPE_AP:
		add_ap_files(sdata);
		break;
	case IEEE80211_IF_TYPE_WDS:
		add_wds_files(sdata);
		break;
	case IEEE80211_IF_TYPE_MNTR:
		add_monitor_files(sdata);
		break;
	case IEEE80211_IF_TYPE_VLAN:
		add_vlan_files(sdata);
		break;
	default:
		break;
	}
}

#define DEBUGFS_DEL(name, type)\
	debugfs_remove(sdata->debugfs.type.name);\
	sdata->debugfs.type.name = NULL;

static void del_sta_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_DEL(channel_use, sta);
	DEBUGFS_DEL(drop_unencrypted, sta);
	DEBUGFS_DEL(eapol, sta);
	DEBUGFS_DEL(ieee8021_x, 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(channel_use, ap);
	DEBUGFS_DEL(drop_unencrypted, ap);
	DEBUGFS_DEL(eapol, ap);
	DEBUGFS_DEL(ieee8021_x, ap);
	DEBUGFS_DEL(num_sta_ps, ap);
	DEBUGFS_DEL(dtim_period, ap);
	DEBUGFS_DEL(dtim_count, ap);
	DEBUGFS_DEL(num_beacons, ap);
	DEBUGFS_DEL(force_unicast_rateidx, ap);
	DEBUGFS_DEL(max_ratectrl_rateidx, ap);
	DEBUGFS_DEL(num_buffered_multicast, ap);
	DEBUGFS_DEL(beacon_head_len, ap);
	DEBUGFS_DEL(beacon_tail_len, ap);
}

static void del_wds_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_DEL(channel_use, wds);
	DEBUGFS_DEL(drop_unencrypted, wds);
	DEBUGFS_DEL(eapol, wds);
	DEBUGFS_DEL(ieee8021_x, wds);
	DEBUGFS_DEL(peer, wds);
}

static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_DEL(channel_use, vlan);
	DEBUGFS_DEL(drop_unencrypted, vlan);
	DEBUGFS_DEL(eapol, vlan);
	DEBUGFS_DEL(ieee8021_x, vlan);
	DEBUGFS_DEL(vlan_id, vlan);
}

static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_DEL(mode, monitor);
}

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

	switch (type) {
	case IEEE80211_IF_TYPE_STA:
	case IEEE80211_IF_TYPE_IBSS:
		del_sta_files(sdata);
		break;
	case IEEE80211_IF_TYPE_AP:
		del_ap_files(sdata);
		break;
	case IEEE80211_IF_TYPE_WDS:
		del_wds_files(sdata);
		break;
	case IEEE80211_IF_TYPE_MNTR:
		del_monitor_files(sdata);
		break;
	case IEEE80211_IF_TYPE_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);
}

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

void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
				      int oldtype)
{
	del_files(sdata, oldtype);
	add_files(sdata);
}

static int netdev_notify(struct notifier_block * nb,
			 unsigned long state,
			 void *ndev)
{
	struct net_device *dev = ndev;
	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;

	/* TODO
	sprintf(buf, "netdev:%s", dev->name);
	debugfs_rename(IEEE80211_DEV_TO_SUB_IF(dev)->debugfsdir, 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"
	20	#include "ieee80211_rate.h"
	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);
	34	if (sdata->dev->reg_state == NETREG_REGISTERED) {
	35	ret = (*format)(sdata, buf, sizeof(buf));
	36	ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
	37	}
	38	read_unlock(&dev_base_lock);
	39	return ret;
	40	}
	41
	42	#define IEEE80211_IF_FMT(name, field, format_string) \
	43	static ssize_t ieee80211_if_fmt_##name( \
	44	const struct ieee80211_sub_if_data sdata, char buf, \
	45	int buflen) \
	46	{ \
	47	return scnprintf(buf, buflen, format_string, sdata->field); \
	48	}
	49	#define IEEE80211_IF_FMT_DEC(name, field) \
	50	IEEE80211_IF_FMT(name, field, "%d\n")
	51	#define IEEE80211_IF_FMT_HEX(name, field) \
	52	IEEE80211_IF_FMT(name, field, "%#x\n")
	53	#define IEEE80211_IF_FMT_SIZE(name, field) \
	54	IEEE80211_IF_FMT(name, field, "%zd\n")
	55
	56	#define IEEE80211_IF_FMT_ATOMIC(name, field) \
	57	static ssize_t ieee80211_if_fmt_##name( \
	58	const struct ieee80211_sub_if_data *sdata, \
	59	char *buf, int buflen) \
	60	{ \
	61	return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
	62	}
	63
	64	#define IEEE80211_IF_FMT_MAC(name, field) \
65	static ssize_t ieee80211_if_fmt_##name( \
66	const struct ieee80211_sub_if_data sdata, char buf, \
67	int buflen) \
68	{ \
69	return scnprintf(buf, buflen, MAC_FMT "\n", MAC_ARG(sdata->field));\
70	}
71
72	#define __IEEE80211_IF_FILE(name) \
73	static ssize_t ieee80211_if_read_##name(struct file *file, \
74	char __user *userbuf, \
75	size_t count, loff_t *ppos) \
76	{ \
77	return ieee80211_if_read(file->private_data, \
78	userbuf, count, ppos, \
79	ieee80211_if_fmt_##name); \
80	} \
81	static const struct file_operations name##_ops = { \
82	.read = ieee80211_if_read_##name, \
83	.open = mac80211_open_file_generic, \
84	}
85
86	#define IEEE80211_IF_FILE(name, field, format) \
87	IEEE80211_IF_FMT_##format(name, field) \
88	__IEEE80211_IF_FILE(name)
89
90	/* common attributes */
91	IEEE80211_IF_FILE(channel_use, channel_use, DEC);
92	IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
93	IEEE80211_IF_FILE(eapol, eapol, DEC);
94	IEEE80211_IF_FILE(ieee8021_x, ieee802_1x, DEC);
95
96	/* STA/IBSS attributes */
97	IEEE80211_IF_FILE(state, u.sta.state, DEC);
98	IEEE80211_IF_FILE(bssid, u.sta.bssid, MAC);
99	IEEE80211_IF_FILE(prev_bssid, u.sta.prev_bssid, MAC);
100	IEEE80211_IF_FILE(ssid_len, u.sta.ssid_len, SIZE);
101	IEEE80211_IF_FILE(aid, u.sta.aid, DEC);
102	IEEE80211_IF_FILE(ap_capab, u.sta.ap_capab, HEX);
103	IEEE80211_IF_FILE(capab, u.sta.capab, HEX);
104	IEEE80211_IF_FILE(extra_ie_len, u.sta.extra_ie_len, SIZE);
105	IEEE80211_IF_FILE(auth_tries, u.sta.auth_tries, DEC);
106	IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC);
107	IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX);
108	IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC);
109	IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC);
110
111	static ssize_t ieee80211_if_fmt_flags(
112	const struct ieee80211_sub_if_data sdata, char buf, int buflen)
113	{
114	return scnprintf(buf, buflen, "%s%s%s%s%s%s%s\n",
115	sdata->u.sta.ssid_set ? "SSID\n" : "",
116	sdata->u.sta.bssid_set ? "BSSID\n" : "",
117	sdata->u.sta.prev_bssid_set ? "prev BSSID\n" : "",
118	sdata->u.sta.authenticated ? "AUTH\n" : "",
119	sdata->u.sta.associated ? "ASSOC\n" : "",
120	sdata->u.sta.probereq_poll ? "PROBEREQ POLL\n" : "",
63fc33ce	121	sdata->use_protection ? "CTS prot\n" : "");
e9f207f0 JB	122	}
	123	__IEEE80211_IF_FILE(flags);
	124
	125	/* AP attributes */
	126	IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
	127	IEEE80211_IF_FILE(dtim_period, u.ap.dtim_period, DEC);
	128	IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
	129	IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC);
	130	IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);
	131	IEEE80211_IF_FILE(max_ratectrl_rateidx, u.ap.max_ratectrl_rateidx, DEC);
	132
	133	static ssize_t ieee80211_if_fmt_num_buffered_multicast(
	134	const struct ieee80211_sub_if_data sdata, char buf, int buflen)
	135	{
	136	return scnprintf(buf, buflen, "%u\n",
	137	skb_queue_len(&sdata->u.ap.ps_bc_buf));
	138	}
	139	__IEEE80211_IF_FILE(num_buffered_multicast);
	140
	141	static ssize_t ieee80211_if_fmt_beacon_head_len(
	142	const struct ieee80211_sub_if_data sdata, char buf, int buflen)
	143	{
	144	if (sdata->u.ap.beacon_head)
	145	return scnprintf(buf, buflen, "%d\n",
	146	sdata->u.ap.beacon_head_len);
	147	return scnprintf(buf, buflen, "\n");
	148	}
	149	__IEEE80211_IF_FILE(beacon_head_len);
	150
	151	static ssize_t ieee80211_if_fmt_beacon_tail_len(
	152	const struct ieee80211_sub_if_data sdata, char buf, int buflen)
	153	{
	154	if (sdata->u.ap.beacon_tail)
	155	return scnprintf(buf, buflen, "%d\n",
	156	sdata->u.ap.beacon_tail_len);
	157	return scnprintf(buf, buflen, "\n");
	158	}
	159	__IEEE80211_IF_FILE(beacon_tail_len);
	160
	161	/* WDS attributes */
	162	IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
	163
	164	/* VLAN attributes */
	165	IEEE80211_IF_FILE(vlan_id, u.vlan.id, DEC);
	166
	167	/* MONITOR attributes */
	168	static ssize_t ieee80211_if_fmt_mode(
	169	const struct ieee80211_sub_if_data sdata, char buf, int buflen)
	170	{
	171	struct ieee80211_local *local = sdata->local;
	172
	173	return scnprintf(buf, buflen, "%s\n",
	174	((local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) \|\|
	175	local->open_count == local->monitors) ?
	176	"hard" : "soft");
	177	}
	178	__IEEE80211_IF_FILE(mode);
	179
	180
	181	#define DEBUGFS_ADD(name, type)\
	182	sdata->debugfs.type.name = debugfs_create_file(#name, 0444,\
	183	sdata->debugfsdir, sdata, &name##_ops);
	184
	185	static void add_sta_files(struct ieee80211_sub_if_data *sdata)
186	{
187	DEBUGFS_ADD(channel_use, sta);
188	DEBUGFS_ADD(drop_unencrypted, sta);
189	DEBUGFS_ADD(eapol, sta);
190	DEBUGFS_ADD(ieee8021_x, sta);
191	DEBUGFS_ADD(state, sta);
192	DEBUGFS_ADD(bssid, sta);
193	DEBUGFS_ADD(prev_bssid, sta);
194	DEBUGFS_ADD(ssid_len, sta);
195	DEBUGFS_ADD(aid, sta);
196	DEBUGFS_ADD(ap_capab, sta);
197	DEBUGFS_ADD(capab, sta);
198	DEBUGFS_ADD(extra_ie_len, sta);
199	DEBUGFS_ADD(auth_tries, sta);
200	DEBUGFS_ADD(assoc_tries, sta);
201	DEBUGFS_ADD(auth_algs, sta);
202	DEBUGFS_ADD(auth_alg, sta);
203	DEBUGFS_ADD(auth_transaction, sta);
204	DEBUGFS_ADD(flags, sta);
205	}
206
207	static void add_ap_files(struct ieee80211_sub_if_data *sdata)
208	{
209	DEBUGFS_ADD(channel_use, ap);
210	DEBUGFS_ADD(drop_unencrypted, ap);
211	DEBUGFS_ADD(eapol, ap);
212	DEBUGFS_ADD(ieee8021_x, ap);
213	DEBUGFS_ADD(num_sta_ps, ap);
214	DEBUGFS_ADD(dtim_period, ap);
215	DEBUGFS_ADD(dtim_count, ap);
216	DEBUGFS_ADD(num_beacons, ap);
217	DEBUGFS_ADD(force_unicast_rateidx, ap);
218	DEBUGFS_ADD(max_ratectrl_rateidx, ap);
219	DEBUGFS_ADD(num_buffered_multicast, ap);
220	DEBUGFS_ADD(beacon_head_len, ap);
221	DEBUGFS_ADD(beacon_tail_len, ap);
222	}
223
224	static void add_wds_files(struct ieee80211_sub_if_data *sdata)
225	{
226	DEBUGFS_ADD(channel_use, wds);
227	DEBUGFS_ADD(drop_unencrypted, wds);
228	DEBUGFS_ADD(eapol, wds);
229	DEBUGFS_ADD(ieee8021_x, wds);
230	DEBUGFS_ADD(peer, wds);
231	}
232
233	static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
234	{
235	DEBUGFS_ADD(channel_use, vlan);
236	DEBUGFS_ADD(drop_unencrypted, vlan);
237	DEBUGFS_ADD(eapol, vlan);
238	DEBUGFS_ADD(ieee8021_x, vlan);
239	DEBUGFS_ADD(vlan_id, vlan);
240	}
241
242	static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
243	{
244	DEBUGFS_ADD(mode, monitor);
245	}
246
247	static void add_files(struct ieee80211_sub_if_data *sdata)
248	{
249	if (!sdata->debugfsdir)
250	return;
251
252	switch (sdata->type) {
253	case IEEE80211_IF_TYPE_STA:
254	case IEEE80211_IF_TYPE_IBSS:
255	add_sta_files(sdata);
256	break;
257	case IEEE80211_IF_TYPE_AP:
258	add_ap_files(sdata);
259	break;
260	case IEEE80211_IF_TYPE_WDS:
261	add_wds_files(sdata);
262	break;
263	case IEEE80211_IF_TYPE_MNTR:
264	add_monitor_files(sdata);
265	break;
266	case IEEE80211_IF_TYPE_VLAN:
267	add_vlan_files(sdata);
268	break;
269	default:
270	break;
271	}
272	}
273
274	#define DEBUGFS_DEL(name, type)\
275	debugfs_remove(sdata->debugfs.type.name);\
276	sdata->debugfs.type.name = NULL;
277
278	static void del_sta_files(struct ieee80211_sub_if_data *sdata)
279	{
280	DEBUGFS_DEL(channel_use, sta);
281	DEBUGFS_DEL(drop_unencrypted, sta);
282	DEBUGFS_DEL(eapol, sta);
283	DEBUGFS_DEL(ieee8021_x, sta);
284	DEBUGFS_DEL(state, sta);
285	DEBUGFS_DEL(bssid, sta);
286	DEBUGFS_DEL(prev_bssid, sta);
287	DEBUGFS_DEL(ssid_len, sta);
288	DEBUGFS_DEL(aid, sta);
289	DEBUGFS_DEL(ap_capab, sta);
290	DEBUGFS_DEL(capab, sta);
291	DEBUGFS_DEL(extra_ie_len, sta);
292	DEBUGFS_DEL(auth_tries, sta);
293	DEBUGFS_DEL(assoc_tries, sta);
294	DEBUGFS_DEL(auth_algs, sta);
295	DEBUGFS_DEL(auth_alg, sta);
296	DEBUGFS_DEL(auth_transaction, sta);
297	DEBUGFS_DEL(flags, sta);
298	}
299
300	static void del_ap_files(struct ieee80211_sub_if_data *sdata)
301	{
302	DEBUGFS_DEL(channel_use, ap);
303	DEBUGFS_DEL(drop_unencrypted, ap);
304	DEBUGFS_DEL(eapol, ap);
305	DEBUGFS_DEL(ieee8021_x, ap);
306	DEBUGFS_DEL(num_sta_ps, ap);
307	DEBUGFS_DEL(dtim_period, ap);
308	DEBUGFS_DEL(dtim_count, ap);
309	DEBUGFS_DEL(num_beacons, ap);
310	DEBUGFS_DEL(force_unicast_rateidx, ap);
311	DEBUGFS_DEL(max_ratectrl_rateidx, ap);
312	DEBUGFS_DEL(num_buffered_multicast, ap);
313	DEBUGFS_DEL(beacon_head_len, ap);
314	DEBUGFS_DEL(beacon_tail_len, ap);
315	}
316
317	static void del_wds_files(struct ieee80211_sub_if_data *sdata)
318	{
319	DEBUGFS_DEL(channel_use, wds);
320	DEBUGFS_DEL(drop_unencrypted, wds);
321	DEBUGFS_DEL(eapol, wds);
322	DEBUGFS_DEL(ieee8021_x, wds);
323	DEBUGFS_DEL(peer, wds);
324	}
325
326	static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
327	{
328	DEBUGFS_DEL(channel_use, vlan);
329	DEBUGFS_DEL(drop_unencrypted, vlan);
330	DEBUGFS_DEL(eapol, vlan);
331	DEBUGFS_DEL(ieee8021_x, vlan);
332	DEBUGFS_DEL(vlan_id, vlan);
333	}
334
335	static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
336	{
337	DEBUGFS_DEL(mode, monitor);
338	}
339
340	static void del_files(struct ieee80211_sub_if_data *sdata, int type)
341	{
342	if (!sdata->debugfsdir)
343	return;
344
345	switch (type) {
346	case IEEE80211_IF_TYPE_STA:
347	case IEEE80211_IF_TYPE_IBSS:
348	del_sta_files(sdata);
349	break;
350	case IEEE80211_IF_TYPE_AP:
351	del_ap_files(sdata);
352	break;
353	case IEEE80211_IF_TYPE_WDS:
354	del_wds_files(sdata);
355	break;
356	case IEEE80211_IF_TYPE_MNTR:
357	del_monitor_files(sdata);
358	break;
359	case IEEE80211_IF_TYPE_VLAN:
360	del_vlan_files(sdata);
361	break;
362	default:
363	break;
364	}
365	}
366
367	static int notif_registered;
368
369	void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
370	{
371	char buf[10+IFNAMSIZ];
372
373	if (!notif_registered)
374	return;
375
376	sprintf(buf, "netdev:%s", sdata->dev->name);
377	sdata->debugfsdir = debugfs_create_dir(buf,
378	sdata->local->hw.wiphy->debugfsdir);
379	}
380
381	void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
382	{
383	del_files(sdata, sdata->type);
384	debugfs_remove(sdata->debugfsdir);
385	sdata->debugfsdir = NULL;
386	}
387
388	void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
389	int oldtype)
390	{
391	del_files(sdata, oldtype);
392	add_files(sdata);
393	}
394
395	static int netdev_notify(struct notifier_block * nb,
396	unsigned long state,
397	void *ndev)
398	{
399	struct net_device *dev = ndev;
400	char buf[10+IFNAMSIZ];
401
402	if (state != NETDEV_CHANGENAME)
403	return 0;
404
405	if (!dev->ieee80211_ptr \|\| !dev->ieee80211_ptr->wiphy)
406	return 0;
407
408	if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
409	return 0;
410
411	/* TODO
412	sprintf(buf, "netdev:%s", dev->name);
413	debugfs_rename(IEEE80211_DEV_TO_SUB_IF(dev)->debugfsdir, buf);
414	*/
415
416	return 0;
417	}
418
419	static struct notifier_block mac80211_debugfs_netdev_notifier = {
420	.notifier_call = netdev_notify,
421	};
422
423	void ieee80211_debugfs_netdev_init(void)
424	{
425	int err;
426
427	err = register_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
428	if (err) {
429	printk(KERN_ERR
430	"mac80211: failed to install netdev notifier,"
431	" disabling per-netdev debugfs!\n");
432	} else
433	notif_registered = 1;
434	}
435
436	void ieee80211_debugfs_netdev_exit(void)
437	{
438	unregister_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
439	notif_registered = 0;
440	}