[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 <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 = simple_open,						\
	.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 = simple_open,						\
	.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_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)
{
	u64 pn;
	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:
	case WLAN_CIPHER_SUITE_CCMP_256:
	case WLAN_CIPHER_SUITE_AES_CMAC:
	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
	case WLAN_CIPHER_SUITE_GCMP:
	case WLAN_CIPHER_SUITE_GCMP_256:
		pn = atomic64_read(&key->conf.tx_pn);
		len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
				(u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
				(u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
		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*IEEE80211_NUM_TIDS+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 < IEEE80211_NUM_TIDS; 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:
	case WLAN_CIPHER_SUITE_CCMP_256:
		for (i = 0; i < IEEE80211_NUM_TIDS + 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:
	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
		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;
	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
		rpn = key->u.aes_gmac.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;
	case WLAN_CIPHER_SUITE_GCMP:
	case WLAN_CIPHER_SUITE_GCMP_256:
		for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) {
			rpn = key->u.gcmp.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;
	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:
	case WLAN_CIPHER_SUITE_CCMP_256:
		len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
		break;
	case WLAN_CIPHER_SUITE_AES_CMAC:
	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
		len = scnprintf(buf, sizeof(buf), "%u\n",
				key->u.aes_cmac.replays);
		break;
	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
		len = scnprintf(buf, sizeof(buf), "%u\n",
				key->u.aes_gmac.replays);
		break;
	case WLAN_CIPHER_SUITE_GCMP:
	case WLAN_CIPHER_SUITE_GCMP_256:
		len = scnprintf(buf, sizeof(buf), "%u\n", key->u.gcmp.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:
	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
		len = scnprintf(buf, sizeof(buf), "%u\n",
				key->u.aes_cmac.icverrors);
		break;
	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
		len = scnprintf(buf, sizeof(buf), "%u\n",
				key->u.aes_gmac.icverrors);
		break;
	default:
		return 0;
	}
	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
}
KEY_OPS(icverrors);

static ssize_t key_mic_failures_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;

	if (key->conf.cipher != WLAN_CIPHER_SUITE_TKIP)
		return -EINVAL;

	len = scnprintf(buf, sizeof(buf), "%u\n", key->u.tkip.mic_failures);

	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
}
KEY_OPS(mic_failures);

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[100];
	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;

	sta = key->sta;
	if (sta) {
		sprintf(buf, "../../netdev:%s/stations/%pM",
			sta->sdata->name, sta->sta.addr);
		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(algorithm);
	DEBUGFS_ADD(tx_spec);
	DEBUGFS_ADD(rx_spec);
	DEBUGFS_ADD(replays);
	DEBUGFS_ADD(icverrors);
	DEBUGFS_ADD(mic_failures);
	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_update_default(struct ieee80211_sub_if_data *sdata)
{
	char buf[50];
	struct ieee80211_key *key;

	if (!sdata->vif.debugfs_dir)
		return;

	lockdep_assert_held(&sdata->local->key_mtx);

	debugfs_remove(sdata->debugfs.default_unicast_key);
	sdata->debugfs.default_unicast_key = NULL;

	if (sdata->default_unicast_key) {
		key = key_mtx_dereference(sdata->local,
					  sdata->default_unicast_key);
		sprintf(buf, "../keys/%d", key->debugfs.cnt);
		sdata->debugfs.default_unicast_key =
			debugfs_create_symlink("default_unicast_key",
					       sdata->vif.debugfs_dir, buf);
	}

	debugfs_remove(sdata->debugfs.default_multicast_key);
	sdata->debugfs.default_multicast_key = NULL;

	if (sdata->default_multicast_key) {
		key = key_mtx_dereference(sdata->local,
					  sdata->default_multicast_key);
		sprintf(buf, "../keys/%d", key->debugfs.cnt);
		sdata->debugfs.default_multicast_key =
			debugfs_create_symlink("default_multicast_key",
					       sdata->vif.debugfs_dir, buf);
	}
}

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

	if (!sdata->vif.debugfs_dir)
		return;

	key = key_mtx_dereference(sdata->local,
				  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->vif.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, \
234e3405	33	.open = simple_open, \
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, \
234e3405	48	.open = simple_open, \
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);
07caf9d6	60	KEY_READ(ifindex, sdata->name, "%s\n");
e7a64f12	61	KEY_OPS(ifindex);
e9f207f0 JB	62
	63	static ssize_t key_algorithm_read(struct file *file,
	64	char __user *userbuf,
	65	size_t count, loff_t *ppos)
	66	{
97359d12	67	char buf[15];
e9f207f0	68	struct ieee80211_key *key = file->private_data;
97359d12	69	u32 c = key->conf.cipher;
e9f207f0	70
97359d12 JB	71	sprintf(buf, "%.2x-%.2x-%.2x:%d\n",
	72	c >> 24, (c >> 16) & 0xff, (c >> 8) & 0xff, c & 0xff);
	73	return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
e9f207f0 JB	74	}
	75	KEY_OPS(algorithm);
	76
	77	static ssize_t key_tx_spec_read(struct file file, char __user userbuf,
	78	size_t count, loff_t *ppos)
	79	{
aba83a0b	80	u64 pn;
e9f207f0 JB	81	char buf[20];
	82	int len;
	83	struct ieee80211_key *key = file->private_data;
	84
97359d12 JB	85	switch (key->conf.cipher) {
	86	case WLAN_CIPHER_SUITE_WEP40:
	87	case WLAN_CIPHER_SUITE_WEP104:
e9f207f0	88	len = scnprintf(buf, sizeof(buf), "\n");
50339a67	89	break;
97359d12	90	case WLAN_CIPHER_SUITE_TKIP:
e9f207f0	91	len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
b0f76b33 HH	92	key->u.tkip.tx.iv32,
b0f76b33 HH	93	key->u.tkip.tx.iv16);
50339a67	94	break;
97359d12	95	case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db	96	case WLAN_CIPHER_SUITE_CCMP_256:
97359d12	97	case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2	98	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
8ade538b JM	99	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
8ade538b JM	100	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
00b9cfa3 JM	101	case WLAN_CIPHER_SUITE_GCMP:
00b9cfa3 JM	102	case WLAN_CIPHER_SUITE_GCMP_256:
db388a56	103	pn = atomic64_read(&key->conf.tx_pn);
00b9cfa3 JM	104	len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
	105	(u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
	106	(u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
	107	break;
e9f207f0 JB	108	default:
	109	return 0;
	110	}
	111	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	112	}
	113	KEY_OPS(tx_spec);
	114
	115	static ssize_t key_rx_spec_read(struct file file, char __user userbuf,
	116	size_t count, loff_t *ppos)
	117	{
	118	struct ieee80211_key *key = file->private_data;
5a306f58	119	char buf[14IEEE80211_NUM_TIDS+1], p = buf;
e9f207f0 JB	120	int i, len;
	121	const u8 *rpn;
	122
97359d12 JB	123	switch (key->conf.cipher) {
	124	case WLAN_CIPHER_SUITE_WEP40:
	125	case WLAN_CIPHER_SUITE_WEP104:
e9f207f0	126	len = scnprintf(buf, sizeof(buf), "\n");
50339a67	127	break;
97359d12	128	case WLAN_CIPHER_SUITE_TKIP:
5a306f58	129	for (i = 0; i < IEEE80211_NUM_TIDS; i++)
e9f207f0 JB	130	p += scnprintf(p, sizeof(buf)+buf-p,
e9f207f0 JB	131	"%08x %04x\n",
b0f76b33 HH	132	key->u.tkip.rx[i].iv32,
b0f76b33 HH	133	key->u.tkip.rx[i].iv16);
e9f207f0	134	len = p - buf;
50339a67	135	break;
97359d12	136	case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db	137	case WLAN_CIPHER_SUITE_CCMP_256:
5a306f58	138	for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) {
e9f207f0 JB	139	rpn = key->u.ccmp.rx_pn[i];
	140	p += scnprintf(p, sizeof(buf)+buf-p,
	141	"%02x%02x%02x%02x%02x%02x\n",
	142	rpn[0], rpn[1], rpn[2],
	143	rpn[3], rpn[4], rpn[5]);
	144	}
	145	len = p - buf;
50339a67	146	break;
97359d12	147	case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2	148	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
3cfcf6ac JM	149	rpn = key->u.aes_cmac.rx_pn;
	150	p += scnprintf(p, sizeof(buf)+buf-p,
	151	"%02x%02x%02x%02x%02x%02x\n",
	152	rpn[0], rpn[1], rpn[2],
	153	rpn[3], rpn[4], rpn[5]);
	154	len = p - buf;
	155	break;
8ade538b JM	156	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
	157	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
	158	rpn = key->u.aes_gmac.rx_pn;
	159	p += scnprintf(p, sizeof(buf)+buf-p,
	160	"%02x%02x%02x%02x%02x%02x\n",
	161	rpn[0], rpn[1], rpn[2],
	162	rpn[3], rpn[4], rpn[5]);
	163	len = p - buf;
	164	break;
00b9cfa3 JM	165	case WLAN_CIPHER_SUITE_GCMP:
	166	case WLAN_CIPHER_SUITE_GCMP_256:
	167	for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) {
	168	rpn = key->u.gcmp.rx_pn[i];
	169	p += scnprintf(p, sizeof(buf)+buf-p,
	170	"%02x%02x%02x%02x%02x%02x\n",
	171	rpn[0], rpn[1], rpn[2],
	172	rpn[3], rpn[4], rpn[5]);
	173	}
	174	len = p - buf;
	175	break;
e9f207f0 JB	176	default:
	177	return 0;
	178	}
	179	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	180	}
	181	KEY_OPS(rx_spec);
	182
	183	static ssize_t key_replays_read(struct file file, char __user userbuf,
	184	size_t count, loff_t *ppos)
	185	{
	186	struct ieee80211_key *key = file->private_data;
	187	char buf[20];
	188	int len;
	189
97359d12 JB	190	switch (key->conf.cipher) {
97359d12 JB	191	case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db	192	case WLAN_CIPHER_SUITE_CCMP_256:
3cfcf6ac JM	193	len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
3cfcf6ac JM	194	break;
97359d12	195	case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2	196	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
3cfcf6ac JM	197	len = scnprintf(buf, sizeof(buf), "%u\n",
	198	key->u.aes_cmac.replays);
	199	break;
8ade538b JM	200	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
	201	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
	202	len = scnprintf(buf, sizeof(buf), "%u\n",
	203	key->u.aes_gmac.replays);
	204	break;
00b9cfa3 JM	205	case WLAN_CIPHER_SUITE_GCMP:
	206	case WLAN_CIPHER_SUITE_GCMP_256:
	207	len = scnprintf(buf, sizeof(buf), "%u\n", key->u.gcmp.replays);
	208	break;
3cfcf6ac	209	default:
e9f207f0	210	return 0;
3cfcf6ac	211	}
e9f207f0 JB	212	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	213	}
	214	KEY_OPS(replays);
	215
3cfcf6ac JM	216	static ssize_t key_icverrors_read(struct file file, char __user userbuf,
	217	size_t count, loff_t *ppos)
	218	{
	219	struct ieee80211_key *key = file->private_data;
	220	char buf[20];
	221	int len;
	222
97359d12 JB	223	switch (key->conf.cipher) {
97359d12 JB	224	case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2	225	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
3cfcf6ac JM	226	len = scnprintf(buf, sizeof(buf), "%u\n",
	227	key->u.aes_cmac.icverrors);
	228	break;
8ade538b JM	229	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
	230	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
	231	len = scnprintf(buf, sizeof(buf), "%u\n",
	232	key->u.aes_gmac.icverrors);
	233	break;
3cfcf6ac JM	234	default:
	235	return 0;
	236	}
	237	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	238	}
	239	KEY_OPS(icverrors);
	240
b98ea058 S	241	static ssize_t key_mic_failures_read(struct file file, char __user userbuf,
	242	size_t count, loff_t *ppos)
	243	{
	244	struct ieee80211_key *key = file->private_data;
	245	char buf[20];
	246	int len;
	247
	248	if (key->conf.cipher != WLAN_CIPHER_SUITE_TKIP)
	249	return -EINVAL;
	250
	251	len = scnprintf(buf, sizeof(buf), "%u\n", key->u.tkip.mic_failures);
	252
	253	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	254	}
	255	KEY_OPS(mic_failures);
	256
e9f207f0 JB	257	static ssize_t key_key_read(struct file file, char __user userbuf,
	258	size_t count, loff_t *ppos)
	259	{
	260	struct ieee80211_key *key = file->private_data;
520efd1a	261	int i, bufsize = 2 * key->conf.keylen + 2;
e9f207f0 JB	262	char *buf = kmalloc(bufsize, GFP_KERNEL);
e9f207f0 JB	263	char *p = buf;
520efd1a JJ	264	ssize_t res;
	265
	266	if (!buf)
	267	return -ENOMEM;
e9f207f0	268
8f20fc24 JB	269	for (i = 0; i < key->conf.keylen; i++)
8f20fc24 JB	270	p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]);
e9f207f0 JB	271	p += scnprintf(p, bufsize+buf-p, "\n");
	272	res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
	273	kfree(buf);
	274	return res;
	275	}
	276	KEY_OPS(key);
	277
	278	#define DEBUGFS_ADD(name) \
7bcfaf2f JB	279	debugfs_create_file(#name, 0400, key->debugfs.dir, \
7bcfaf2f JB	280	key, &key_##name##_ops);
e9f207f0	281
3b96766f	282	void ieee80211_debugfs_key_add(struct ieee80211_key *key)
9446f3ef	283	{
50339a67	284	static int keycount;
9446f3ef	285	char buf[100];
3b96766f	286	struct sta_info *sta;
e9f207f0	287
3b96766f	288	if (!key->local->debugfs.keys)
e9f207f0 JB	289	return;
e9f207f0 JB	290
50339a67	291	sprintf(buf, "%d", keycount);
d9c58f30	292	key->debugfs.cnt = keycount;
50339a67	293	keycount++;
e9f207f0	294	key->debugfs.dir = debugfs_create_dir(buf,
3b96766f	295	key->local->debugfs.keys);
e9f207f0 JB	296
	297	if (!key->debugfs.dir)
	298	return;
	299
40b275b6 JB	300	sta = key->sta;
40b275b6 JB	301	if (sta) {
9446f3ef JB	302	sprintf(buf, "../../netdev:%s/stations/%pM",
9446f3ef JB	303	sta->sdata->name, sta->sta.addr);
3b96766f JB	304	key->debugfs.stalink =
3b96766f JB	305	debugfs_create_symlink("station", key->debugfs.dir, buf);
40b275b6	306	}
3b96766f	307
e9f207f0	308	DEBUGFS_ADD(keylen);
8f20fc24	309	DEBUGFS_ADD(flags);
e9f207f0 JB	310	DEBUGFS_ADD(keyidx);
e9f207f0 JB	311	DEBUGFS_ADD(hw_key_idx);
e9f207f0 JB	312	DEBUGFS_ADD(algorithm);
	313	DEBUGFS_ADD(tx_spec);
	314	DEBUGFS_ADD(rx_spec);
	315	DEBUGFS_ADD(replays);
3cfcf6ac	316	DEBUGFS_ADD(icverrors);
b98ea058	317	DEBUGFS_ADD(mic_failures);
e9f207f0	318	DEBUGFS_ADD(key);
e7a64f12	319	DEBUGFS_ADD(ifindex);
e9f207f0 JB	320	};
e9f207f0 JB	321
e9f207f0 JB	322	void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
	323	{
	324	if (!key)
	325	return;
	326
7bcfaf2f	327	debugfs_remove_recursive(key->debugfs.dir);
e9f207f0 JB	328	key->debugfs.dir = NULL;
e9f207f0 JB	329	}
f7e0104c JB	330
f7e0104c JB	331	void ieee80211_debugfs_key_update_default(struct ieee80211_sub_if_data *sdata)
e9f207f0 JB	332	{
e9f207f0 JB	333	char buf[50];
78520cad	334	struct ieee80211_key *key;
e9f207f0	335
ddbfe860	336	if (!sdata->vif.debugfs_dir)
e9f207f0 JB	337	return;
e9f207f0 JB	338
f7e0104c	339	lockdep_assert_held(&sdata->local->key_mtx);
78520cad	340
5c6761ad FF	341	debugfs_remove(sdata->debugfs.default_unicast_key);
5c6761ad FF	342	sdata->debugfs.default_unicast_key = NULL;
135792ec	343
f7e0104c	344	if (sdata->default_unicast_key) {
40b275b6 JB	345	key = key_mtx_dereference(sdata->local,
40b275b6 JB	346	sdata->default_unicast_key);
78520cad	347	sprintf(buf, "../keys/%d", key->debugfs.cnt);
f7e0104c JB	348	sdata->debugfs.default_unicast_key =
f7e0104c JB	349	debugfs_create_symlink("default_unicast_key",
ddbfe860	350	sdata->vif.debugfs_dir, buf);
135792ec JB	351	}
135792ec JB	352
5c6761ad FF	353	debugfs_remove(sdata->debugfs.default_multicast_key);
5c6761ad FF	354	sdata->debugfs.default_multicast_key = NULL;
e9f207f0	355
f7e0104c	356	if (sdata->default_multicast_key) {
40b275b6 JB	357	key = key_mtx_dereference(sdata->local,
40b275b6 JB	358	sdata->default_multicast_key);
f7e0104c JB	359	sprintf(buf, "../keys/%d", key->debugfs.cnt);
	360	sdata->debugfs.default_multicast_key =
	361	debugfs_create_symlink("default_multicast_key",
ddbfe860	362	sdata->vif.debugfs_dir, buf);
f7e0104c	363	}
e9f207f0	364	}
e9f207f0	365
3cfcf6ac JM	366	void ieee80211_debugfs_key_add_mgmt_default(struct ieee80211_sub_if_data *sdata)
	367	{
	368	char buf[50];
	369	struct ieee80211_key *key;
	370
ddbfe860	371	if (!sdata->vif.debugfs_dir)
3cfcf6ac JM	372	return;
3cfcf6ac JM	373
40b275b6 JB	374	key = key_mtx_dereference(sdata->local,
40b275b6 JB	375	sdata->default_mgmt_key);
3cfcf6ac JM	376	if (key) {
3cfcf6ac JM	377	sprintf(buf, "../keys/%d", key->debugfs.cnt);
7bcfaf2f	378	sdata->debugfs.default_mgmt_key =
3cfcf6ac	379	debugfs_create_symlink("default_mgmt_key",
ddbfe860	380	sdata->vif.debugfs_dir, buf);
3cfcf6ac JM	381	} else
	382	ieee80211_debugfs_key_remove_mgmt_default(sdata);
	383	}
	384
	385	void ieee80211_debugfs_key_remove_mgmt_default(struct ieee80211_sub_if_data *sdata)
	386	{
	387	if (!sdata)
	388	return;
	389
7bcfaf2f JB	390	debugfs_remove(sdata->debugfs.default_mgmt_key);
7bcfaf2f JB	391	sdata->debugfs.default_mgmt_key = NULL;
3cfcf6ac JM	392	}
3cfcf6ac JM	393
e9f207f0 JB	394	void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
	395	struct sta_info *sta)
	396	{
	397	debugfs_remove(key->debugfs.stalink);
	398	key->debugfs.stalink = NULL;
	399	}