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

/*
 * Copyright 2003-2005	Devicescape Software, Inc.
 * 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/kobject.h>
#include "ieee80211_i.h"
#include "key.h"
#include "debugfs.h"
#include "debugfs_key.h"

#define KEY_READ(name, prop, buflen, format_string)			\
static ssize_t key_##name##_read(struct file *file,			\
				 char __user *userbuf,			\
				 size_t count, loff_t *ppos)		\
{									\
	char buf[buflen];						\
	struct ieee80211_key *key = file->private_data;			\
	int res = scnprintf(buf, buflen, format_string, key->prop);	\
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);	\
}
#define KEY_READ_D(name) KEY_READ(name, name, 20, "%d\n")
#define KEY_READ_X(name) KEY_READ(name, name, 20, "0x%x\n")

#define KEY_OPS(name)							\
static const struct file_operations key_ ##name## _ops = {		\
	.read = key_##name##_read,					\
	.open = mac80211_open_file_generic,				\
}

#define KEY_FILE(name, format)						\
		 KEY_READ_##format(name)				\
		 KEY_OPS(name)

#define KEY_CONF_READ(name, buflen, format_string)			\
	KEY_READ(conf_##name, conf.name, buflen, format_string)
#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, 20, "%d\n")

#define KEY_CONF_OPS(name)						\
static const struct file_operations key_ ##name## _ops = {		\
	.read = key_conf_##name##_read,					\
	.open = mac80211_open_file_generic,				\
}

#define KEY_CONF_FILE(name, format)					\
		 KEY_CONF_READ_##format(name)				\
		 KEY_CONF_OPS(name)

KEY_CONF_FILE(keylen, D);
KEY_CONF_FILE(keyidx, D);
KEY_CONF_FILE(hw_key_idx, D);
KEY_FILE(flags, X);
KEY_FILE(tx_rx_count, D);
KEY_READ(ifindex, sdata->dev->ifindex, 20, "%d\n");
KEY_OPS(ifindex);

static ssize_t key_algorithm_read(struct file *file,
				  char __user *userbuf,
				  size_t count, loff_t *ppos)
{
	char *alg;
	struct ieee80211_key *key = file->private_data;

	switch (key->conf.alg) {
	case ALG_WEP:
		alg = "WEP\n";
		break;
	case ALG_TKIP:
		alg = "TKIP\n";
		break;
	case ALG_CCMP:
		alg = "CCMP\n";
		break;
	case ALG_AES_CMAC:
		alg = "AES-128-CMAC\n";
		break;
	default:
		return 0;
	}
	return simple_read_from_buffer(userbuf, count, ppos, alg, strlen(alg));
}
KEY_OPS(algorithm);

static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
				size_t count, loff_t *ppos)
{
	const u8 *tpn;
	char buf[20];
	int len;
	struct ieee80211_key *key = file->private_data;

	switch (key->conf.alg) {
	case ALG_WEP:
		len = scnprintf(buf, sizeof(buf), "\n");
		break;
	case ALG_TKIP:
		len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
				key->u.tkip.tx.iv32,
				key->u.tkip.tx.iv16);
		break;
	case ALG_CCMP:
		tpn = key->u.ccmp.tx_pn;
		len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
				tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
		break;
	case ALG_AES_CMAC:
		tpn = key->u.aes_cmac.tx_pn;
		len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
				tpn[0], tpn[1], tpn[2], tpn[3], tpn[4],
				tpn[5]);
		break;
	default:
		return 0;
	}
	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
}
KEY_OPS(tx_spec);

static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
				size_t count, loff_t *ppos)
{
	struct ieee80211_key *key = file->private_data;
	char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf;
	int i, len;
	const u8 *rpn;

	switch (key->conf.alg) {
	case ALG_WEP:
		len = scnprintf(buf, sizeof(buf), "\n");
		break;
	case ALG_TKIP:
		for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
			p += scnprintf(p, sizeof(buf)+buf-p,
				       "%08x %04x\n",
				       key->u.tkip.rx[i].iv32,
				       key->u.tkip.rx[i].iv16);
		len = p - buf;
		break;
	case ALG_CCMP:
		for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
			rpn = key->u.ccmp.rx_pn[i];
			p += scnprintf(p, sizeof(buf)+buf-p,
				       "%02x%02x%02x%02x%02x%02x\n",
				       rpn[0], rpn[1], rpn[2],
				       rpn[3], rpn[4], rpn[5]);
		}
		len = p - buf;
		break;
	case ALG_AES_CMAC:
		rpn = key->u.aes_cmac.rx_pn;
		p += scnprintf(p, sizeof(buf)+buf-p,
			       "%02x%02x%02x%02x%02x%02x\n",
			       rpn[0], rpn[1], rpn[2],
			       rpn[3], rpn[4], rpn[5]);
		len = p - buf;
		break;
	default:
		return 0;
	}
	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
}
KEY_OPS(rx_spec);

static ssize_t key_replays_read(struct file *file, char __user *userbuf,
				size_t count, loff_t *ppos)
{
	struct ieee80211_key *key = file->private_data;
	char buf[20];
	int len;

	switch (key->conf.alg) {
	case ALG_CCMP:
		len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
		break;
	case ALG_AES_CMAC:
		len = scnprintf(buf, sizeof(buf), "%u\n",
				key->u.aes_cmac.replays);
		break;
	default:
		return 0;
	}
	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
}
KEY_OPS(replays);

static ssize_t key_icverrors_read(struct file *file, char __user *userbuf,
				  size_t count, loff_t *ppos)
{
	struct ieee80211_key *key = file->private_data;
	char buf[20];
	int len;

	switch (key->conf.alg) {
	case ALG_AES_CMAC:
		len = scnprintf(buf, sizeof(buf), "%u\n",
				key->u.aes_cmac.icverrors);
		break;
	default:
		return 0;
	}
	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
}
KEY_OPS(icverrors);

static ssize_t key_key_read(struct file *file, char __user *userbuf,
			    size_t count, loff_t *ppos)
{
	struct ieee80211_key *key = file->private_data;
	int i, res, bufsize = 2 * key->conf.keylen + 2;
	char *buf = kmalloc(bufsize, GFP_KERNEL);
	char *p = buf;

	for (i = 0; i < key->conf.keylen; i++)
		p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]);
	p += scnprintf(p, bufsize+buf-p, "\n");
	res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
	kfree(buf);
	return res;
}
KEY_OPS(key);

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

void ieee80211_debugfs_key_add(struct ieee80211_key *key)
  {
	static int keycount;
	char buf[50];
	struct sta_info *sta;

	if (!key->local->debugfs.keys)
		return;

	sprintf(buf, "%d", keycount);
	key->debugfs.cnt = keycount;
	keycount++;
	key->debugfs.dir = debugfs_create_dir(buf,
					key->local->debugfs.keys);

	if (!key->debugfs.dir)
		return;

	rcu_read_lock();
	sta = rcu_dereference(key->sta);
	if (sta)
		sprintf(buf, "../../stations/%pM", sta->sta.addr);
	rcu_read_unlock();

	/* using sta as a boolean is fine outside RCU lock */
	if (sta)
		key->debugfs.stalink =
			debugfs_create_symlink("station", key->debugfs.dir, buf);

	DEBUGFS_ADD(keylen);
	DEBUGFS_ADD(flags);
	DEBUGFS_ADD(keyidx);
	DEBUGFS_ADD(hw_key_idx);
	DEBUGFS_ADD(tx_rx_count);
	DEBUGFS_ADD(algorithm);
	DEBUGFS_ADD(tx_spec);
	DEBUGFS_ADD(rx_spec);
	DEBUGFS_ADD(replays);
	DEBUGFS_ADD(icverrors);
	DEBUGFS_ADD(key);
	DEBUGFS_ADD(ifindex);
};

#define DEBUGFS_DEL(name) \
	debugfs_remove(key->debugfs.name); key->debugfs.name = NULL;

void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
{
	if (!key)
		return;

	DEBUGFS_DEL(keylen);
	DEBUGFS_DEL(flags);
	DEBUGFS_DEL(keyidx);
	DEBUGFS_DEL(hw_key_idx);
	DEBUGFS_DEL(tx_rx_count);
	DEBUGFS_DEL(algorithm);
	DEBUGFS_DEL(tx_spec);
	DEBUGFS_DEL(rx_spec);
	DEBUGFS_DEL(replays);
	DEBUGFS_DEL(icverrors);
	DEBUGFS_DEL(key);
	DEBUGFS_DEL(ifindex);

	debugfs_remove(key->debugfs.stalink);
	key->debugfs.stalink = NULL;
	debugfs_remove(key->debugfs.dir);
	key->debugfs.dir = NULL;
}
void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
{
	char buf[50];
	struct ieee80211_key *key;

	if (!sdata->debugfsdir)
		return;

	/* this is running under the key lock */

	key = sdata->default_key;
	if (key) {
		sprintf(buf, "../keys/%d", key->debugfs.cnt);
		sdata->common_debugfs.default_key =
			debugfs_create_symlink("default_key",
					       sdata->debugfsdir, buf);
	} else
		ieee80211_debugfs_key_remove_default(sdata);
}

void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
{
	if (!sdata)
		return;

	debugfs_remove(sdata->common_debugfs.default_key);
	sdata->common_debugfs.default_key = NULL;
}

void ieee80211_debugfs_key_add_mgmt_default(struct ieee80211_sub_if_data *sdata)
{
	char buf[50];
	struct ieee80211_key *key;

	if (!sdata->debugfsdir)
		return;

	/* this is running under the key lock */

	key = sdata->default_mgmt_key;
	if (key) {
		sprintf(buf, "../keys/%d", key->debugfs.cnt);
		sdata->common_debugfs.default_mgmt_key =
			debugfs_create_symlink("default_mgmt_key",
					       sdata->debugfsdir, buf);
	} else
		ieee80211_debugfs_key_remove_mgmt_default(sdata);
}

void ieee80211_debugfs_key_remove_mgmt_default(struct ieee80211_sub_if_data *sdata)
{
	if (!sdata)
		return;

	debugfs_remove(sdata->common_debugfs.default_mgmt_key);
	sdata->common_debugfs.default_mgmt_key = NULL;
}

void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
				   struct sta_info *sta)
{
	debugfs_remove(key->debugfs.stalink);
	key->debugfs.stalink = NULL;
}
Commit	Line	Data
e9f207f0 JB	1	/*
	2	* Copyright 2003-2005 Devicescape Software, Inc.
	3	* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
	4	* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*/
	10
	11	#include <linux/kobject.h>
	12	#include "ieee80211_i.h"
2c8dccc7	13	#include "key.h"
e9f207f0 JB	14	#include "debugfs.h"
	15	#include "debugfs_key.h"
	16
8f20fc24	17	#define KEY_READ(name, prop, buflen, format_string) \
e9f207f0 JB	18	static ssize_t key_##name##_read(struct file *file, \
	19	char __user *userbuf, \
	20	size_t count, loff_t *ppos) \
	21	{ \
	22	char buf[buflen]; \
	23	struct ieee80211_key *key = file->private_data; \
8f20fc24	24	int res = scnprintf(buf, buflen, format_string, key->prop); \
e9f207f0 JB	25	return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
e9f207f0 JB	26	}
8f20fc24	27	#define KEY_READ_D(name) KEY_READ(name, name, 20, "%d\n")
11a843b7	28	#define KEY_READ_X(name) KEY_READ(name, name, 20, "0x%x\n")
e9f207f0 JB	29
	30	#define KEY_OPS(name) \
	31	static const struct file_operations key_ ##name## _ops = { \
	32	.read = key_##name##_read, \
	33	.open = mac80211_open_file_generic, \
	34	}
	35
	36	#define KEY_FILE(name, format) \
	37	KEY_READ_##format(name) \
	38	KEY_OPS(name)
	39
8f20fc24 JB	40	#define KEY_CONF_READ(name, buflen, format_string) \
	41	KEY_READ(conf_##name, conf.name, buflen, format_string)
	42	#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, 20, "%d\n")
8f20fc24 JB	43
	44	#define KEY_CONF_OPS(name) \
	45	static const struct file_operations key_ ##name## _ops = { \
	46	.read = key_conf_##name##_read, \
	47	.open = mac80211_open_file_generic, \
	48	}
	49
	50	#define KEY_CONF_FILE(name, format) \
	51	KEY_CONF_READ_##format(name) \
	52	KEY_CONF_OPS(name)
	53
	54	KEY_CONF_FILE(keylen, D);
	55	KEY_CONF_FILE(keyidx, D);
	56	KEY_CONF_FILE(hw_key_idx, D);
11a843b7	57	KEY_FILE(flags, X);
e9f207f0	58	KEY_FILE(tx_rx_count, D);
e7a64f12 JB	59	KEY_READ(ifindex, sdata->dev->ifindex, 20, "%d\n");
e7a64f12 JB	60	KEY_OPS(ifindex);
e9f207f0 JB	61
	62	static ssize_t key_algorithm_read(struct file *file,
	63	char __user *userbuf,
	64	size_t count, loff_t *ppos)
	65	{
	66	char *alg;
	67	struct ieee80211_key *key = file->private_data;
	68
8f20fc24	69	switch (key->conf.alg) {
e9f207f0 JB	70	case ALG_WEP:
	71	alg = "WEP\n";
	72	break;
	73	case ALG_TKIP:
	74	alg = "TKIP\n";
	75	break;
	76	case ALG_CCMP:
	77	alg = "CCMP\n";
	78	break;
3cfcf6ac JM	79	case ALG_AES_CMAC:
	80	alg = "AES-128-CMAC\n";
	81	break;
e9f207f0 JB	82	default:
	83	return 0;
	84	}
	85	return simple_read_from_buffer(userbuf, count, ppos, alg, strlen(alg));
	86	}
	87	KEY_OPS(algorithm);
	88
	89	static ssize_t key_tx_spec_read(struct file file, char __user userbuf,
	90	size_t count, loff_t *ppos)
	91	{
	92	const u8 *tpn;
	93	char buf[20];
	94	int len;
	95	struct ieee80211_key *key = file->private_data;
	96
8f20fc24	97	switch (key->conf.alg) {
e9f207f0 JB	98	case ALG_WEP:
e9f207f0 JB	99	len = scnprintf(buf, sizeof(buf), "\n");
50339a67	100	break;
e9f207f0 JB	101	case ALG_TKIP:
e9f207f0 JB	102	len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
b0f76b33 HH	103	key->u.tkip.tx.iv32,
b0f76b33 HH	104	key->u.tkip.tx.iv16);
50339a67	105	break;
e9f207f0 JB	106	case ALG_CCMP:
	107	tpn = key->u.ccmp.tx_pn;
	108	len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
	109	tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
50339a67	110	break;
3cfcf6ac JM	111	case ALG_AES_CMAC:
	112	tpn = key->u.aes_cmac.tx_pn;
	113	len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
	114	tpn[0], tpn[1], tpn[2], tpn[3], tpn[4],
	115	tpn[5]);
	116	break;
e9f207f0 JB	117	default:
	118	return 0;
	119	}
	120	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	121	}
	122	KEY_OPS(tx_spec);
	123
	124	static ssize_t key_rx_spec_read(struct file file, char __user userbuf,
	125	size_t count, loff_t *ppos)
	126	{
	127	struct ieee80211_key *key = file->private_data;
	128	char buf[14NUM_RX_DATA_QUEUES+1], p = buf;
	129	int i, len;
	130	const u8 *rpn;
	131
8f20fc24	132	switch (key->conf.alg) {
e9f207f0 JB	133	case ALG_WEP:
e9f207f0 JB	134	len = scnprintf(buf, sizeof(buf), "\n");
50339a67	135	break;
e9f207f0 JB	136	case ALG_TKIP:
	137	for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
	138	p += scnprintf(p, sizeof(buf)+buf-p,
	139	"%08x %04x\n",
b0f76b33 HH	140	key->u.tkip.rx[i].iv32,
b0f76b33 HH	141	key->u.tkip.rx[i].iv16);
e9f207f0	142	len = p - buf;
50339a67	143	break;
e9f207f0 JB	144	case ALG_CCMP:
	145	for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
	146	rpn = key->u.ccmp.rx_pn[i];
	147	p += scnprintf(p, sizeof(buf)+buf-p,
	148	"%02x%02x%02x%02x%02x%02x\n",
	149	rpn[0], rpn[1], rpn[2],
	150	rpn[3], rpn[4], rpn[5]);
	151	}
	152	len = p - buf;
50339a67	153	break;
3cfcf6ac JM	154	case ALG_AES_CMAC:
	155	rpn = key->u.aes_cmac.rx_pn;
	156	p += scnprintf(p, sizeof(buf)+buf-p,
	157	"%02x%02x%02x%02x%02x%02x\n",
	158	rpn[0], rpn[1], rpn[2],
	159	rpn[3], rpn[4], rpn[5]);
	160	len = p - buf;
	161	break;
e9f207f0 JB	162	default:
	163	return 0;
	164	}
	165	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	166	}
	167	KEY_OPS(rx_spec);
	168
	169	static ssize_t key_replays_read(struct file file, char __user userbuf,
	170	size_t count, loff_t *ppos)
	171	{
	172	struct ieee80211_key *key = file->private_data;
	173	char buf[20];
	174	int len;
	175
3cfcf6ac JM	176	switch (key->conf.alg) {
	177	case ALG_CCMP:
	178	len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
	179	break;
	180	case ALG_AES_CMAC:
	181	len = scnprintf(buf, sizeof(buf), "%u\n",
	182	key->u.aes_cmac.replays);
	183	break;
	184	default:
e9f207f0	185	return 0;
3cfcf6ac	186	}
e9f207f0 JB	187	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	188	}
	189	KEY_OPS(replays);
	190
3cfcf6ac JM	191	static ssize_t key_icverrors_read(struct file file, char __user userbuf,
	192	size_t count, loff_t *ppos)
	193	{
	194	struct ieee80211_key *key = file->private_data;
	195	char buf[20];
	196	int len;
	197
	198	switch (key->conf.alg) {
	199	case ALG_AES_CMAC:
	200	len = scnprintf(buf, sizeof(buf), "%u\n",
	201	key->u.aes_cmac.icverrors);
	202	break;
	203	default:
	204	return 0;
	205	}
	206	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	207	}
	208	KEY_OPS(icverrors);
	209
e9f207f0 JB	210	static ssize_t key_key_read(struct file file, char __user userbuf,
	211	size_t count, loff_t *ppos)
	212	{
	213	struct ieee80211_key *key = file->private_data;
8f20fc24	214	int i, res, bufsize = 2 * key->conf.keylen + 2;
e9f207f0 JB	215	char *buf = kmalloc(bufsize, GFP_KERNEL);
	216	char *p = buf;
	217
8f20fc24 JB	218	for (i = 0; i < key->conf.keylen; i++)
8f20fc24 JB	219	p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]);
e9f207f0 JB	220	p += scnprintf(p, bufsize+buf-p, "\n");
	221	res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
	222	kfree(buf);
	223	return res;
	224	}
	225	KEY_OPS(key);
	226
	227	#define DEBUGFS_ADD(name) \
	228	key->debugfs.name = debugfs_create_file(#name, 0400,\
	229	key->debugfs.dir, key, &key_##name##_ops);
	230
3b96766f JB	231	void ieee80211_debugfs_key_add(struct ieee80211_key *key)
3b96766f JB	232	{
50339a67	233	static int keycount;
3b96766f	234	char buf[50];
3b96766f	235	struct sta_info *sta;
e9f207f0	236
3b96766f	237	if (!key->local->debugfs.keys)
e9f207f0 JB	238	return;
e9f207f0 JB	239
50339a67	240	sprintf(buf, "%d", keycount);
d9c58f30	241	key->debugfs.cnt = keycount;
50339a67	242	keycount++;
e9f207f0	243	key->debugfs.dir = debugfs_create_dir(buf,
3b96766f	244	key->local->debugfs.keys);
e9f207f0 JB	245
	246	if (!key->debugfs.dir)
	247	return;
	248
3b96766f JB	249	rcu_read_lock();
	250	sta = rcu_dereference(key->sta);
	251	if (sta)
0c68ae26	252	sprintf(buf, "../../stations/%pM", sta->sta.addr);
3b96766f JB	253	rcu_read_unlock();
	254
	255	/* using sta as a boolean is fine outside RCU lock */
	256	if (sta)
	257	key->debugfs.stalink =
	258	debugfs_create_symlink("station", key->debugfs.dir, buf);
	259
e9f207f0	260	DEBUGFS_ADD(keylen);
8f20fc24	261	DEBUGFS_ADD(flags);
e9f207f0 JB	262	DEBUGFS_ADD(keyidx);
	263	DEBUGFS_ADD(hw_key_idx);
	264	DEBUGFS_ADD(tx_rx_count);
	265	DEBUGFS_ADD(algorithm);
	266	DEBUGFS_ADD(tx_spec);
	267	DEBUGFS_ADD(rx_spec);
	268	DEBUGFS_ADD(replays);
3cfcf6ac	269	DEBUGFS_ADD(icverrors);
e9f207f0	270	DEBUGFS_ADD(key);
e7a64f12	271	DEBUGFS_ADD(ifindex);
e9f207f0 JB	272	};
	273
	274	#define DEBUGFS_DEL(name) \
	275	debugfs_remove(key->debugfs.name); key->debugfs.name = NULL;
	276
	277	void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
	278	{
	279	if (!key)
	280	return;
	281
	282	DEBUGFS_DEL(keylen);
8f20fc24	283	DEBUGFS_DEL(flags);
e9f207f0 JB	284	DEBUGFS_DEL(keyidx);
	285	DEBUGFS_DEL(hw_key_idx);
	286	DEBUGFS_DEL(tx_rx_count);
	287	DEBUGFS_DEL(algorithm);
	288	DEBUGFS_DEL(tx_spec);
	289	DEBUGFS_DEL(rx_spec);
	290	DEBUGFS_DEL(replays);
3cfcf6ac	291	DEBUGFS_DEL(icverrors);
e9f207f0	292	DEBUGFS_DEL(key);
e7a64f12	293	DEBUGFS_DEL(ifindex);
e9f207f0 JB	294
	295	debugfs_remove(key->debugfs.stalink);
	296	key->debugfs.stalink = NULL;
	297	debugfs_remove(key->debugfs.dir);
	298	key->debugfs.dir = NULL;
	299	}
	300	void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
	301	{
	302	char buf[50];
78520cad	303	struct ieee80211_key *key;
e9f207f0 JB	304
	305	if (!sdata->debugfsdir)
	306	return;
	307
78520cad JB	308	/* this is running under the key lock */
	309
	310	key = sdata->default_key;
	311	if (key) {
	312	sprintf(buf, "../keys/%d", key->debugfs.cnt);
2b58b209	313	sdata->common_debugfs.default_key =
78520cad JB	314	debugfs_create_symlink("default_key",
	315	sdata->debugfsdir, buf);
	316	} else
	317	ieee80211_debugfs_key_remove_default(sdata);
e9f207f0	318	}
78520cad	319
e9f207f0 JB	320	void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
	321	{
	322	if (!sdata)
	323	return;
	324
2b58b209 JM	325	debugfs_remove(sdata->common_debugfs.default_key);
2b58b209 JM	326	sdata->common_debugfs.default_key = NULL;
e9f207f0	327	}
e9f207f0	328
3cfcf6ac JM	329	void ieee80211_debugfs_key_add_mgmt_default(struct ieee80211_sub_if_data *sdata)
	330	{
	331	char buf[50];
	332	struct ieee80211_key *key;
	333
	334	if (!sdata->debugfsdir)
	335	return;
	336
	337	/* this is running under the key lock */
	338
	339	key = sdata->default_mgmt_key;
	340	if (key) {
	341	sprintf(buf, "../keys/%d", key->debugfs.cnt);
	342	sdata->common_debugfs.default_mgmt_key =
	343	debugfs_create_symlink("default_mgmt_key",
	344	sdata->debugfsdir, buf);
	345	} else
	346	ieee80211_debugfs_key_remove_mgmt_default(sdata);
	347	}
	348
	349	void ieee80211_debugfs_key_remove_mgmt_default(struct ieee80211_sub_if_data *sdata)
	350	{
	351	if (!sdata)
	352	return;
	353
	354	debugfs_remove(sdata->common_debugfs.default_mgmt_key);
	355	sdata->common_debugfs.default_mgmt_key = NULL;
	356	}
	357
e9f207f0 JB	358	void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
	359	struct sta_info *sta)
	360	{
	361	debugfs_remove(key->debugfs.stalink);
	362	key->debugfs.stalink = NULL;
	363	}