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authorJiri Benc <jbenc@suse.cz>2007-05-05 14:46:38 -0400
committerDavid S. Miller <davem@davemloft.net>2007-05-05 14:46:38 -0400
commite9f207f0ff90bf60b825800d7450e6f2ff2eab88 (patch)
tree22bd39116f2cae8d4ce6169eb91e4b9a7204770f /net/mac80211/debugfs_sta.c
parentf0706e828e96d0fa4e80c0d25aa98523f6d589a0 (diff)
[MAC80211]: Add debugfs attributes.
Export various mac80211 internal variables through debugfs. Signed-off-by: Jiri Benc <jbenc@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac80211/debugfs_sta.c')
-rw-r--r--net/mac80211/debugfs_sta.c246
1 files changed, 246 insertions, 0 deletions
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
new file mode 100644
index 000000000000..d41e696f3980
--- /dev/null
+++ b/net/mac80211/debugfs_sta.c
@@ -0,0 +1,246 @@
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/debugfs.h>
12#include <linux/ieee80211.h>
13#include "ieee80211_i.h"
14#include "debugfs.h"
15#include "debugfs_sta.h"
16#include "sta_info.h"
17
18/* sta attributtes */
19
20#define STA_READ(name, buflen, field, format_string) \
21static ssize_t sta_ ##name## _read(struct file *file, \
22 char __user *userbuf, \
23 size_t count, loff_t *ppos) \
24{ \
25 int res; \
26 struct sta_info *sta = file->private_data; \
27 char buf[buflen]; \
28 res = scnprintf(buf, buflen, format_string, sta->field); \
29 return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
30}
31#define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
32#define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
33#define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
34#define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
35
36#define STA_READ_RATE(name, field) \
37static ssize_t sta_##name##_read(struct file *file, \
38 char __user *userbuf, \
39 size_t count, loff_t *ppos) \
40{ \
41 struct sta_info *sta = file->private_data; \
42 struct ieee80211_local *local = wdev_priv(sta->dev->ieee80211_ptr);\
43 struct ieee80211_hw_mode *mode = local->oper_hw_mode; \
44 char buf[20]; \
45 int res = scnprintf(buf, sizeof(buf), "%d\n", \
46 (sta->field >= 0 && \
47 sta->field < mode->num_rates) ? \
48 mode->rates[sta->field].rate : -1); \
49 return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
50}
51
52#define STA_OPS(name) \
53static const struct file_operations sta_ ##name## _ops = { \
54 .read = sta_##name##_read, \
55 .open = mac80211_open_file_generic, \
56}
57
58#define STA_FILE(name, field, format) \
59 STA_READ_##format(name, field) \
60 STA_OPS(name)
61
62STA_FILE(aid, aid, D);
63STA_FILE(key_idx_compression, key_idx_compression, D);
64STA_FILE(dev, dev->name, S);
65STA_FILE(vlan_id, vlan_id, D);
66STA_FILE(rx_packets, rx_packets, LU);
67STA_FILE(tx_packets, tx_packets, LU);
68STA_FILE(rx_bytes, rx_bytes, LU);
69STA_FILE(tx_bytes, tx_bytes, LU);
70STA_FILE(rx_duplicates, num_duplicates, LU);
71STA_FILE(rx_fragments, rx_fragments, LU);
72STA_FILE(rx_dropped, rx_dropped, LU);
73STA_FILE(tx_fragments, tx_fragments, LU);
74STA_FILE(tx_filtered, tx_filtered_count, LU);
75STA_FILE(txrate, txrate, RATE);
76STA_FILE(last_txrate, last_txrate, RATE);
77STA_FILE(tx_retry_failed, tx_retry_failed, LU);
78STA_FILE(tx_retry_count, tx_retry_count, LU);
79STA_FILE(last_rssi, last_rssi, D);
80STA_FILE(last_signal, last_signal, D);
81STA_FILE(last_noise, last_noise, D);
82STA_FILE(channel_use, channel_use, D);
83STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D);
84
85static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
86 size_t count, loff_t *ppos)
87{
88 char buf[100];
89 struct sta_info *sta = file->private_data;
90 int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
91 sta->flags & WLAN_STA_AUTH ? "AUTH\n" : "",
92 sta->flags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
93 sta->flags & WLAN_STA_PS ? "PS\n" : "",
94 sta->flags & WLAN_STA_TIM ? "TIM\n" : "",
95 sta->flags & WLAN_STA_PERM ? "PERM\n" : "",
96 sta->flags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
97 sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
98 sta->flags & WLAN_STA_WME ? "WME\n" : "",
99 sta->flags & WLAN_STA_WDS ? "WDS\n" : "");
100 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
101}
102STA_OPS(flags);
103
104static ssize_t sta_num_ps_buf_frames_read(struct file *file,
105 char __user *userbuf,
106 size_t count, loff_t *ppos)
107{
108 char buf[20];
109 struct sta_info *sta = file->private_data;
110 int res = scnprintf(buf, sizeof(buf), "%u\n",
111 skb_queue_len(&sta->ps_tx_buf));
112 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
113}
114STA_OPS(num_ps_buf_frames);
115
116static ssize_t sta_last_ack_rssi_read(struct file *file, char __user *userbuf,
117 size_t count, loff_t *ppos)
118{
119 char buf[100];
120 struct sta_info *sta = file->private_data;
121 int res = scnprintf(buf, sizeof(buf), "%d %d %d\n",
122 sta->last_ack_rssi[0],
123 sta->last_ack_rssi[1],
124 sta->last_ack_rssi[2]);
125 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
126}
127STA_OPS(last_ack_rssi);
128
129static ssize_t sta_last_ack_ms_read(struct file *file, char __user *userbuf,
130 size_t count, loff_t *ppos)
131{
132 char buf[20];
133 struct sta_info *sta = file->private_data;
134 int res = scnprintf(buf, sizeof(buf), "%d\n",
135 sta->last_ack ?
136 jiffies_to_msecs(jiffies - sta->last_ack) : -1);
137 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
138}
139STA_OPS(last_ack_ms);
140
141static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
142 size_t count, loff_t *ppos)
143{
144 char buf[20];
145 struct sta_info *sta = file->private_data;
146 int res = scnprintf(buf, sizeof(buf), "%d\n",
147 jiffies_to_msecs(jiffies - sta->last_rx));
148 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
149}
150STA_OPS(inactive_ms);
151
152static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
153 size_t count, loff_t *ppos)
154{
155 char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
156 int i;
157 struct sta_info *sta = file->private_data;
158 for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
159 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
160 sta->last_seq_ctrl[i]);
161 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
162 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
163}
164STA_OPS(last_seq_ctrl);
165
166#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
167static ssize_t sta_wme_rx_queue_read(struct file *file, char __user *userbuf,
168 size_t count, loff_t *ppos)
169{
170 char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
171 int i;
172 struct sta_info *sta = file->private_data;
173 for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
174 p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
175 sta->wme_rx_queue[i]);
176 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
177 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
178}
179STA_OPS(wme_rx_queue);
180
181static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf,
182 size_t count, loff_t *ppos)
183{
184 char buf[15*NUM_TX_DATA_QUEUES], *p = buf;
185 int i;
186 struct sta_info *sta = file->private_data;
187 for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
188 p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
189 sta->wme_tx_queue[i]);
190 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
191 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
192}
193STA_OPS(wme_tx_queue);
194#endif
195
196#define DEBUGFS_ADD(name) \
197 sta->debugfs.name = debugfs_create_file(#name, 0444, \
198 sta->debugfs.dir, sta, &sta_ ##name## _ops);
199
200#define DEBUGFS_DEL(name) \
201 debugfs_remove(sta->debugfs.name);\
202 sta->debugfs.name = NULL;
203
204
205void ieee80211_sta_debugfs_add(struct sta_info *sta)
206{
207 char buf[3*6];
208 struct dentry *stations_dir = sta->local->debugfs.stations;
209
210 if (!stations_dir)
211 return;
212
213 sprintf(buf, MAC_FMT, MAC_ARG(sta->addr));
214
215 sta->debugfs.dir = debugfs_create_dir(buf, stations_dir);
216 if (!sta->debugfs.dir)
217 return;
218
219 DEBUGFS_ADD(flags);
220 DEBUGFS_ADD(num_ps_buf_frames);
221 DEBUGFS_ADD(last_ack_rssi);
222 DEBUGFS_ADD(last_ack_ms);
223 DEBUGFS_ADD(inactive_ms);
224 DEBUGFS_ADD(last_seq_ctrl);
225#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
226 DEBUGFS_ADD(wme_rx_queue);
227 DEBUGFS_ADD(wme_tx_queue);
228#endif
229}
230
231void ieee80211_sta_debugfs_remove(struct sta_info *sta)
232{
233 DEBUGFS_DEL(flags);
234 DEBUGFS_DEL(num_ps_buf_frames);
235 DEBUGFS_DEL(last_ack_rssi);
236 DEBUGFS_DEL(last_ack_ms);
237 DEBUGFS_DEL(inactive_ms);
238 DEBUGFS_DEL(last_seq_ctrl);
239#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
240 DEBUGFS_DEL(wme_rx_queue);
241 DEBUGFS_DEL(wme_tx_queue);
242#endif
243
244 debugfs_remove(sta->debugfs.dir);
245 sta->debugfs.dir = NULL;
246}
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