aboutsummaryrefslogtreecommitdiffstats
path: root/net/mac80211/debugfs_sta.c
blob: f7c717c906dc1a7f777c46e73bb3f6ccf7ae9bc5 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
/*
 * 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/debugfs.h>
#include <linux/ieee80211.h>
#include "ieee80211_i.h"
#include "debugfs.h"
#include "debugfs_sta.h"
#include "sta_info.h"

/* sta attributtes */

#define STA_READ(name, buflen, field, format_string)			\
static ssize_t sta_ ##name## _read(struct file *file,			\
				   char __user *userbuf,		\
				   size_t count, loff_t *ppos)		\
{									\
	int res;							\
	struct sta_info *sta = file->private_data;			\
	char buf[buflen];						\
	res = scnprintf(buf, buflen, format_string, sta->field);	\
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);	\
}
#define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
#define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
#define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
#define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")

#define STA_READ_RATE(name, field)					\
static ssize_t sta_##name##_read(struct file *file,			\
				 char __user *userbuf,			\
				 size_t count, loff_t *ppos)		\
{									\
	struct sta_info *sta = file->private_data;			\
	struct ieee80211_local *local = wdev_priv(sta->dev->ieee80211_ptr);\
	struct ieee80211_hw_mode *mode = local->oper_hw_mode;		\
	char buf[20];							\
	int res = scnprintf(buf, sizeof(buf), "%d\n",			\
			    (sta->field >= 0 &&				\
			    sta->field < mode->num_rates) ?		\
			    mode->rates[sta->field].rate : -1);		\
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);	\
}

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

#define STA_FILE(name, field, format)					\
		STA_READ_##format(name, field)				\
		STA_OPS(name)

STA_FILE(aid, aid, D);
STA_FILE(dev, dev->name, S);
STA_FILE(vlan_id, vlan_id, D);
STA_FILE(rx_packets, rx_packets, LU);
STA_FILE(tx_packets, tx_packets, LU);
STA_FILE(rx_bytes, rx_bytes, LU);
STA_FILE(tx_bytes, tx_bytes, LU);
STA_FILE(rx_duplicates, num_duplicates, LU);
STA_FILE(rx_fragments, rx_fragments, LU);
STA_FILE(rx_dropped, rx_dropped, LU);
STA_FILE(tx_fragments, tx_fragments, LU);
STA_FILE(tx_filtered, tx_filtered_count, LU);
STA_FILE(txrate, txrate, RATE);
STA_FILE(last_txrate, last_txrate, RATE);
STA_FILE(tx_retry_failed, tx_retry_failed, LU);
STA_FILE(tx_retry_count, tx_retry_count, LU);
STA_FILE(last_rssi, last_rssi, D);
STA_FILE(last_signal, last_signal, D);
STA_FILE(last_noise, last_noise, D);
STA_FILE(channel_use, channel_use, D);
STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D);

static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
			      size_t count, loff_t *ppos)
{
	char buf[100];
	struct sta_info *sta = file->private_data;
	int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
		sta->flags & WLAN_STA_AUTH ? "AUTH\n" : "",
		sta->flags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
		sta->flags & WLAN_STA_PS ? "PS\n" : "",
		sta->flags & WLAN_STA_TIM ? "TIM\n" : "",
		sta->flags & WLAN_STA_PERM ? "PERM\n" : "",
		sta->flags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
		sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
		sta->flags & WLAN_STA_WME ? "WME\n" : "",
		sta->flags & WLAN_STA_WDS ? "WDS\n" : "");
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
STA_OPS(flags);

static ssize_t sta_num_ps_buf_frames_read(struct file *file,
					  char __user *userbuf,
					  size_t count, loff_t *ppos)
{
	char buf[20];
	struct sta_info *sta = file->private_data;
	int res = scnprintf(buf, sizeof(buf), "%u\n",
			    skb_queue_len(&sta->ps_tx_buf));
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
STA_OPS(num_ps_buf_frames);

static ssize_t sta_last_ack_rssi_read(struct file *file, char __user *userbuf,
				      size_t count, loff_t *ppos)
{
	char buf[100];
	struct sta_info *sta = file->private_data;
	int res = scnprintf(buf, sizeof(buf), "%d %d %d\n",
			    sta->last_ack_rssi[0],
			    sta->last_ack_rssi[1],
			    sta->last_ack_rssi[2]);
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
STA_OPS(last_ack_rssi);

static ssize_t sta_last_ack_ms_read(struct file *file, char __user *userbuf,
				    size_t count, loff_t *ppos)
{
	char buf[20];
	struct sta_info *sta = file->private_data;
	int res = scnprintf(buf, sizeof(buf), "%d\n",
			    sta->last_ack ?
			    jiffies_to_msecs(jiffies - sta->last_ack) : -1);
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
STA_OPS(last_ack_ms);

static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
				    size_t count, loff_t *ppos)
{
	char buf[20];
	struct sta_info *sta = file->private_data;
	int res = scnprintf(buf, sizeof(buf), "%d\n",
			    jiffies_to_msecs(jiffies - sta->last_rx));
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
STA_OPS(inactive_ms);

static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
				      size_t count, loff_t *ppos)
{
	char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
	int i;
	struct sta_info *sta = file->private_data;
	for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
		p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
			       le16_to_cpu(sta->last_seq_ctrl[i]));
	p += scnprintf(p, sizeof(buf)+buf-p, "\n");
	return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
}
STA_OPS(last_seq_ctrl);

#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
static ssize_t sta_wme_rx_queue_read(struct file *file, char __user *userbuf,
				     size_t count, loff_t *ppos)
{
	char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
	int i;
	struct sta_info *sta = file->private_data;
	for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
		p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
			       sta->wme_rx_queue[i]);
	p += scnprintf(p, sizeof(buf)+buf-p, "\n");
	return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
}
STA_OPS(wme_rx_queue);

static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf,
				     size_t count, loff_t *ppos)
{
	char buf[15*NUM_TX_DATA_QUEUES], *p = buf;
	int i;
	struct sta_info *sta = file->private_data;
	for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
		p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
			       sta->wme_tx_queue[i]);
	p += scnprintf(p, sizeof(buf)+buf-p, "\n");
	return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
}
STA_OPS(wme_tx_queue);
#endif

#define DEBUGFS_ADD(name) \
	sta->debugfs.name = debugfs_create_file(#name, 0444, \
		sta->debugfs.dir, sta, &sta_ ##name## _ops);

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


void ieee80211_sta_debugfs_add(struct sta_info *sta)
{
	struct dentry *stations_dir = sta->local->debugfs.stations;
	DECLARE_MAC_BUF(mac);

	if (!stations_dir)
		return;

	print_mac(mac, sta->addr);

	sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
	if (!sta->debugfs.dir)
		return;

	DEBUGFS_ADD(flags);
	DEBUGFS_ADD(num_ps_buf_frames);
	DEBUGFS_ADD(last_ack_rssi);
	DEBUGFS_ADD(last_ack_ms);
	DEBUGFS_ADD(inactive_ms);
	DEBUGFS_ADD(last_seq_ctrl);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
	DEBUGFS_ADD(wme_rx_queue);
	DEBUGFS_ADD(wme_tx_queue);
#endif
}

void ieee80211_sta_debugfs_remove(struct sta_info *sta)
{
	DEBUGFS_DEL(flags);
	DEBUGFS_DEL(num_ps_buf_frames);
	DEBUGFS_DEL(last_ack_rssi);
	DEBUGFS_DEL(last_ack_ms);
	DEBUGFS_DEL(inactive_ms);
	DEBUGFS_DEL(last_seq_ctrl);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
	DEBUGFS_DEL(wme_rx_queue);
	DEBUGFS_DEL(wme_tx_queue);
#endif

	debugfs_remove(sta->debugfs.dir);
	sta->debugfs.dir = NULL;
}