[net-next-2.6.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 <linux/slab.h>
#include "ieee80211_i.h"
#include "key.h"
#include "debugfs.h"
#include "debugfs_key.h"

#define KEY_READ(name, prop, format_string)				\
static ssize_t key_##name##_read(struct file *file,			\
				 char __user *userbuf,			\
				 size_t count, loff_t *ppos)		\
{									\
	struct ieee80211_key *key = file->private_data;			\
	return mac80211_format_buffer(userbuf, count, ppos, 		\
				      format_string, key->prop);	\
}
#define KEY_READ_D(name) KEY_READ(name, name, "%d\n")
#define KEY_READ_X(name) KEY_READ(name, name, "0x%x\n")

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

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

#define KEY_CONF_READ(name, format_string)				\
	KEY_READ(conf_##name, conf.name, format_string)
#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, "%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,				\
	.llseek = generic_file_llseek,					\
}

#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->name, "%s\n");
KEY_OPS(ifindex);

static ssize_t key_algorithm_read(struct file *file,
				  char __user *userbuf,
				  size_t count, loff_t *ppos)
{
	char buf[15];
	struct ieee80211_key *key = file->private_data;
	u32 c = key->conf.cipher;

	sprintf(buf, "%.2x-%.2x-%.2x:%d\n",
		c >> 24, (c >> 16) & 0xff, (c >> 8) & 0xff, c & 0xff);
	return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
}
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.cipher) {
	case WLAN_CIPHER_SUITE_WEP40:
	case WLAN_CIPHER_SUITE_WEP104:
		len = scnprintf(buf, sizeof(buf), "\n");
		break;
	case WLAN_CIPHER_SUITE_TKIP:
		len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
				key->u.tkip.tx.iv32,
				key->u.tkip.tx.iv16);
		break;
	case WLAN_CIPHER_SUITE_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 WLAN_CIPHER_SUITE_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.cipher) {
	case WLAN_CIPHER_SUITE_WEP40:
	case WLAN_CIPHER_SUITE_WEP104:
		len = scnprintf(buf, sizeof(buf), "\n");
		break;
	case WLAN_CIPHER_SUITE_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 WLAN_CIPHER_SUITE_CCMP:
		for (i = 0; i < NUM_RX_DATA_QUEUES + 1; 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 WLAN_CIPHER_SUITE_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.cipher) {
	case WLAN_CIPHER_SUITE_CCMP:
		len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
		break;
	case WLAN_CIPHER_SUITE_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.cipher) {
	case WLAN_CIPHER_SUITE_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, bufsize = 2 * key->conf.keylen + 2;
	char *buf = kmalloc(bufsize, GFP_KERNEL);
	char *p = buf;
	ssize_t res;

	if (!buf)
		return -ENOMEM;

	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) \
	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);
};

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

	debugfs_remove_recursive(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->debugfs.dir)
		return;

	/* this is running under the key lock */

	key = sdata->default_key;
	if (key) {
		sprintf(buf, "../keys/%d", key->debugfs.cnt);
		sdata->debugfs.default_key =
			debugfs_create_symlink("default_key",
					       sdata->debugfs.dir, 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->debugfs.default_key);
	sdata->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->debugfs.dir)
		return;

	/* this is running under the key lock */

	key = sdata->default_mgmt_key;
	if (key) {
		sprintf(buf, "../keys/%d", key->debugfs.cnt);
		sdata->debugfs.default_mgmt_key =
			debugfs_create_symlink("default_mgmt_key",
					       sdata->debugfs.dir, 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->debugfs.default_mgmt_key);
	sdata->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>
5a0e3ad6	12	#include <linux/slab.h>
e9f207f0	13	#include "ieee80211_i.h"
2c8dccc7	14	#include "key.h"
e9f207f0 JB	15	#include "debugfs.h"
	16	#include "debugfs_key.h"
	17
07caf9d6	18	#define KEY_READ(name, prop, format_string) \
e9f207f0 JB	19	static ssize_t key_##name##_read(struct file *file, \
	20	char __user *userbuf, \
	21	size_t count, loff_t *ppos) \
	22	{ \
e9f207f0	23	struct ieee80211_key *key = file->private_data; \
07caf9d6 EP	24	return mac80211_format_buffer(userbuf, count, ppos, \
07caf9d6 EP	25	format_string, key->prop); \
e9f207f0	26	}
07caf9d6 EP	27	#define KEY_READ_D(name) KEY_READ(name, name, "%d\n")
07caf9d6 EP	28	#define KEY_READ_X(name) KEY_READ(name, name, "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, \
2b18ab36	34	.llseek = generic_file_llseek, \
e9f207f0 JB	35	}
	36
	37	#define KEY_FILE(name, format) \
	38	KEY_READ_##format(name) \
	39	KEY_OPS(name)
	40
07caf9d6 EP	41	#define KEY_CONF_READ(name, format_string) \
	42	KEY_READ(conf_##name, conf.name, format_string)
	43	#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, "%d\n")
8f20fc24 JB	44
	45	#define KEY_CONF_OPS(name) \
	46	static const struct file_operations key_ ##name## _ops = { \
	47	.read = key_conf_##name##_read, \
	48	.open = mac80211_open_file_generic, \
2b18ab36	49	.llseek = generic_file_llseek, \
8f20fc24 JB	50	}
	51
	52	#define KEY_CONF_FILE(name, format) \
	53	KEY_CONF_READ_##format(name) \
	54	KEY_CONF_OPS(name)
	55
	56	KEY_CONF_FILE(keylen, D);
	57	KEY_CONF_FILE(keyidx, D);
	58	KEY_CONF_FILE(hw_key_idx, D);
11a843b7	59	KEY_FILE(flags, X);
e9f207f0	60	KEY_FILE(tx_rx_count, D);
07caf9d6	61	KEY_READ(ifindex, sdata->name, "%s\n");
e7a64f12	62	KEY_OPS(ifindex);
e9f207f0 JB	63
	64	static ssize_t key_algorithm_read(struct file *file,
	65	char __user *userbuf,
	66	size_t count, loff_t *ppos)
	67	{
97359d12	68	char buf[15];
e9f207f0	69	struct ieee80211_key *key = file->private_data;
97359d12	70	u32 c = key->conf.cipher;
e9f207f0	71
97359d12 JB	72	sprintf(buf, "%.2x-%.2x-%.2x:%d\n",
	73	c >> 24, (c >> 16) & 0xff, (c >> 8) & 0xff, c & 0xff);
	74	return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
e9f207f0 JB	75	}
	76	KEY_OPS(algorithm);
	77
	78	static ssize_t key_tx_spec_read(struct file file, char __user userbuf,
	79	size_t count, loff_t *ppos)
	80	{
	81	const u8 *tpn;
	82	char buf[20];
	83	int len;
	84	struct ieee80211_key *key = file->private_data;
	85
97359d12 JB	86	switch (key->conf.cipher) {
	87	case WLAN_CIPHER_SUITE_WEP40:
	88	case WLAN_CIPHER_SUITE_WEP104:
e9f207f0	89	len = scnprintf(buf, sizeof(buf), "\n");
50339a67	90	break;
97359d12	91	case WLAN_CIPHER_SUITE_TKIP:
e9f207f0	92	len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
b0f76b33 HH	93	key->u.tkip.tx.iv32,
b0f76b33 HH	94	key->u.tkip.tx.iv16);
50339a67	95	break;
97359d12	96	case WLAN_CIPHER_SUITE_CCMP:
e9f207f0 JB	97	tpn = key->u.ccmp.tx_pn;
	98	len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
	99	tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
50339a67	100	break;
97359d12	101	case WLAN_CIPHER_SUITE_AES_CMAC:
3cfcf6ac JM	102	tpn = key->u.aes_cmac.tx_pn;
	103	len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
	104	tpn[0], tpn[1], tpn[2], tpn[3], tpn[4],
	105	tpn[5]);
	106	break;
e9f207f0 JB	107	default:
	108	return 0;
	109	}
	110	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	111	}
	112	KEY_OPS(tx_spec);
	113
	114	static ssize_t key_rx_spec_read(struct file file, char __user userbuf,
	115	size_t count, loff_t *ppos)
	116	{
	117	struct ieee80211_key *key = file->private_data;
	118	char buf[14NUM_RX_DATA_QUEUES+1], p = buf;
	119	int i, len;
	120	const u8 *rpn;
	121
97359d12 JB	122	switch (key->conf.cipher) {
	123	case WLAN_CIPHER_SUITE_WEP40:
	124	case WLAN_CIPHER_SUITE_WEP104:
e9f207f0	125	len = scnprintf(buf, sizeof(buf), "\n");
50339a67	126	break;
97359d12	127	case WLAN_CIPHER_SUITE_TKIP:
e9f207f0 JB	128	for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
	129	p += scnprintf(p, sizeof(buf)+buf-p,
	130	"%08x %04x\n",
b0f76b33 HH	131	key->u.tkip.rx[i].iv32,
b0f76b33 HH	132	key->u.tkip.rx[i].iv16);
e9f207f0	133	len = p - buf;
50339a67	134	break;
97359d12	135	case WLAN_CIPHER_SUITE_CCMP:
9190252c	136	for (i = 0; i < NUM_RX_DATA_QUEUES + 1; i++) {
e9f207f0 JB	137	rpn = key->u.ccmp.rx_pn[i];
	138	p += scnprintf(p, sizeof(buf)+buf-p,
	139	"%02x%02x%02x%02x%02x%02x\n",
	140	rpn[0], rpn[1], rpn[2],
	141	rpn[3], rpn[4], rpn[5]);
	142	}
	143	len = p - buf;
50339a67	144	break;
97359d12	145	case WLAN_CIPHER_SUITE_AES_CMAC:
3cfcf6ac JM	146	rpn = key->u.aes_cmac.rx_pn;
	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	len = p - buf;
	152	break;
e9f207f0 JB	153	default:
	154	return 0;
	155	}
	156	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	157	}
	158	KEY_OPS(rx_spec);
	159
	160	static ssize_t key_replays_read(struct file file, char __user userbuf,
	161	size_t count, loff_t *ppos)
	162	{
	163	struct ieee80211_key *key = file->private_data;
	164	char buf[20];
	165	int len;
	166
97359d12 JB	167	switch (key->conf.cipher) {
97359d12 JB	168	case WLAN_CIPHER_SUITE_CCMP:
3cfcf6ac JM	169	len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
3cfcf6ac JM	170	break;
97359d12	171	case WLAN_CIPHER_SUITE_AES_CMAC:
3cfcf6ac JM	172	len = scnprintf(buf, sizeof(buf), "%u\n",
	173	key->u.aes_cmac.replays);
	174	break;
	175	default:
e9f207f0	176	return 0;
3cfcf6ac	177	}
e9f207f0 JB	178	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	179	}
	180	KEY_OPS(replays);
	181
3cfcf6ac JM	182	static ssize_t key_icverrors_read(struct file file, char __user userbuf,
	183	size_t count, loff_t *ppos)
	184	{
	185	struct ieee80211_key *key = file->private_data;
	186	char buf[20];
	187	int len;
	188
97359d12 JB	189	switch (key->conf.cipher) {
97359d12 JB	190	case WLAN_CIPHER_SUITE_AES_CMAC:
3cfcf6ac JM	191	len = scnprintf(buf, sizeof(buf), "%u\n",
	192	key->u.aes_cmac.icverrors);
	193	break;
	194	default:
	195	return 0;
	196	}
	197	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	198	}
	199	KEY_OPS(icverrors);
	200
e9f207f0 JB	201	static ssize_t key_key_read(struct file file, char __user userbuf,
	202	size_t count, loff_t *ppos)
	203	{
	204	struct ieee80211_key *key = file->private_data;
520efd1a	205	int i, bufsize = 2 * key->conf.keylen + 2;
e9f207f0 JB	206	char *buf = kmalloc(bufsize, GFP_KERNEL);
e9f207f0 JB	207	char *p = buf;
520efd1a JJ	208	ssize_t res;
	209
	210	if (!buf)
	211	return -ENOMEM;
e9f207f0	212
8f20fc24 JB	213	for (i = 0; i < key->conf.keylen; i++)
8f20fc24 JB	214	p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]);
e9f207f0 JB	215	p += scnprintf(p, bufsize+buf-p, "\n");
	216	res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
	217	kfree(buf);
	218	return res;
	219	}
	220	KEY_OPS(key);
	221
	222	#define DEBUGFS_ADD(name) \
7bcfaf2f JB	223	debugfs_create_file(#name, 0400, key->debugfs.dir, \
7bcfaf2f JB	224	key, &key_##name##_ops);
e9f207f0	225
3b96766f JB	226	void ieee80211_debugfs_key_add(struct ieee80211_key *key)
3b96766f JB	227	{
50339a67	228	static int keycount;
3b96766f	229	char buf[50];
3b96766f	230	struct sta_info *sta;
e9f207f0	231
3b96766f	232	if (!key->local->debugfs.keys)
e9f207f0 JB	233	return;
e9f207f0 JB	234
50339a67	235	sprintf(buf, "%d", keycount);
d9c58f30	236	key->debugfs.cnt = keycount;
50339a67	237	keycount++;
e9f207f0	238	key->debugfs.dir = debugfs_create_dir(buf,
3b96766f	239	key->local->debugfs.keys);
e9f207f0 JB	240
	241	if (!key->debugfs.dir)
	242	return;
	243
3b96766f JB	244	rcu_read_lock();
	245	sta = rcu_dereference(key->sta);
	246	if (sta)
0c68ae26	247	sprintf(buf, "../../stations/%pM", sta->sta.addr);
3b96766f JB	248	rcu_read_unlock();
	249
	250	/* using sta as a boolean is fine outside RCU lock */
	251	if (sta)
	252	key->debugfs.stalink =
	253	debugfs_create_symlink("station", key->debugfs.dir, buf);
	254
e9f207f0	255	DEBUGFS_ADD(keylen);
8f20fc24	256	DEBUGFS_ADD(flags);
e9f207f0 JB	257	DEBUGFS_ADD(keyidx);
	258	DEBUGFS_ADD(hw_key_idx);
	259	DEBUGFS_ADD(tx_rx_count);
	260	DEBUGFS_ADD(algorithm);
	261	DEBUGFS_ADD(tx_spec);
	262	DEBUGFS_ADD(rx_spec);
	263	DEBUGFS_ADD(replays);
3cfcf6ac	264	DEBUGFS_ADD(icverrors);
e9f207f0	265	DEBUGFS_ADD(key);
e7a64f12	266	DEBUGFS_ADD(ifindex);
e9f207f0 JB	267	};
e9f207f0 JB	268
e9f207f0 JB	269	void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
	270	{
	271	if (!key)
	272	return;
	273
7bcfaf2f	274	debugfs_remove_recursive(key->debugfs.dir);
e9f207f0 JB	275	key->debugfs.dir = NULL;
	276	}
	277	void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
	278	{
	279	char buf[50];
78520cad	280	struct ieee80211_key *key;
e9f207f0	281
7bcfaf2f	282	if (!sdata->debugfs.dir)
e9f207f0 JB	283	return;
e9f207f0 JB	284
78520cad JB	285	/* this is running under the key lock */
	286
	287	key = sdata->default_key;
	288	if (key) {
	289	sprintf(buf, "../keys/%d", key->debugfs.cnt);
7bcfaf2f	290	sdata->debugfs.default_key =
78520cad	291	debugfs_create_symlink("default_key",
7bcfaf2f	292	sdata->debugfs.dir, buf);
78520cad JB	293	} else
78520cad JB	294	ieee80211_debugfs_key_remove_default(sdata);
e9f207f0	295	}
78520cad	296
e9f207f0 JB	297	void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
	298	{
	299	if (!sdata)
	300	return;
	301
7bcfaf2f JB	302	debugfs_remove(sdata->debugfs.default_key);
7bcfaf2f JB	303	sdata->debugfs.default_key = NULL;
e9f207f0	304	}
e9f207f0	305
3cfcf6ac JM	306	void ieee80211_debugfs_key_add_mgmt_default(struct ieee80211_sub_if_data *sdata)
	307	{
	308	char buf[50];
	309	struct ieee80211_key *key;
	310
7bcfaf2f	311	if (!sdata->debugfs.dir)
3cfcf6ac JM	312	return;
	313
	314	/* this is running under the key lock */
	315
	316	key = sdata->default_mgmt_key;
	317	if (key) {
	318	sprintf(buf, "../keys/%d", key->debugfs.cnt);
7bcfaf2f	319	sdata->debugfs.default_mgmt_key =
3cfcf6ac	320	debugfs_create_symlink("default_mgmt_key",
7bcfaf2f	321	sdata->debugfs.dir, buf);
3cfcf6ac JM	322	} else
	323	ieee80211_debugfs_key_remove_mgmt_default(sdata);
	324	}
	325
	326	void ieee80211_debugfs_key_remove_mgmt_default(struct ieee80211_sub_if_data *sdata)
	327	{
	328	if (!sdata)
	329	return;
	330
7bcfaf2f JB	331	debugfs_remove(sdata->debugfs.default_mgmt_key);
7bcfaf2f JB	332	sdata->debugfs.default_mgmt_key = NULL;
3cfcf6ac JM	333	}
3cfcf6ac JM	334
e9f207f0 JB	335	void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
	336	struct sta_info *sta)
	337	{
	338	debugfs_remove(key->debugfs.stalink);
	339	key->debugfs.stalink = NULL;
	340	}