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ac61353ae7cedde1e2682629bc9d21da5b8cd00c
[openwrt.git] / package / mac80211 / src / net / mac80211 / debugfs_sta.c
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) \
21 static 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_OPS(name) \
37 static const struct file_operations sta_ ##name## _ops = { \
38 .read = sta_##name##_read, \
39 .open = mac80211_open_file_generic, \
40 }
41
42 #define STA_OPS_WR(name) \
43 static const struct file_operations sta_ ##name## _ops = { \
44 .read = sta_##name##_read, \
45 .write = sta_##name##_write, \
46 .open = mac80211_open_file_generic, \
47 }
48
49 #define STA_FILE(name, field, format) \
50 STA_READ_##format(name, field) \
51 STA_OPS(name)
52
53 STA_FILE(aid, aid, D);
54 STA_FILE(dev, dev->name, S);
55 STA_FILE(rx_packets, rx_packets, LU);
56 STA_FILE(tx_packets, tx_packets, LU);
57 STA_FILE(rx_bytes, rx_bytes, LU);
58 STA_FILE(tx_bytes, tx_bytes, LU);
59 STA_FILE(rx_duplicates, num_duplicates, LU);
60 STA_FILE(rx_fragments, rx_fragments, LU);
61 STA_FILE(rx_dropped, rx_dropped, LU);
62 STA_FILE(tx_fragments, tx_fragments, LU);
63 STA_FILE(tx_filtered, tx_filtered_count, LU);
64 STA_FILE(tx_retry_failed, tx_retry_failed, LU);
65 STA_FILE(tx_retry_count, tx_retry_count, LU);
66 STA_FILE(last_rssi, last_rssi, D);
67 STA_FILE(last_signal, last_signal, D);
68 STA_FILE(last_noise, last_noise, D);
69 STA_FILE(channel_use, channel_use, D);
70 STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D);
71
72 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
73 size_t count, loff_t *ppos)
74 {
75 char buf[100];
76 struct sta_info *sta = file->private_data;
77 int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s",
78 sta->flags & WLAN_STA_AUTH ? "AUTH\n" : "",
79 sta->flags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
80 sta->flags & WLAN_STA_PS ? "PS\n" : "",
81 sta->flags & WLAN_STA_TIM ? "TIM\n" : "",
82 sta->flags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
83 sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
84 sta->flags & WLAN_STA_WME ? "WME\n" : "",
85 sta->flags & WLAN_STA_WDS ? "WDS\n" : "");
86 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
87 }
88 STA_OPS(flags);
89
90 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
91 char __user *userbuf,
92 size_t count, loff_t *ppos)
93 {
94 char buf[20];
95 struct sta_info *sta = file->private_data;
96 int res = scnprintf(buf, sizeof(buf), "%u\n",
97 skb_queue_len(&sta->ps_tx_buf));
98 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
99 }
100 STA_OPS(num_ps_buf_frames);
101
102 static ssize_t sta_last_ack_rssi_read(struct file *file, char __user *userbuf,
103 size_t count, loff_t *ppos)
104 {
105 char buf[100];
106 struct sta_info *sta = file->private_data;
107 int res = scnprintf(buf, sizeof(buf), "%d %d %d\n",
108 sta->last_ack_rssi[0],
109 sta->last_ack_rssi[1],
110 sta->last_ack_rssi[2]);
111 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
112 }
113 STA_OPS(last_ack_rssi);
114
115 static ssize_t sta_last_ack_ms_read(struct file *file, char __user *userbuf,
116 size_t count, loff_t *ppos)
117 {
118 char buf[20];
119 struct sta_info *sta = file->private_data;
120 int res = scnprintf(buf, sizeof(buf), "%d\n",
121 sta->last_ack ?
122 jiffies_to_msecs(jiffies - sta->last_ack) : -1);
123 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
124 }
125 STA_OPS(last_ack_ms);
126
127 static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
128 size_t count, loff_t *ppos)
129 {
130 char buf[20];
131 struct sta_info *sta = file->private_data;
132 int res = scnprintf(buf, sizeof(buf), "%d\n",
133 jiffies_to_msecs(jiffies - sta->last_rx));
134 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
135 }
136 STA_OPS(inactive_ms);
137
138 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
139 size_t count, loff_t *ppos)
140 {
141 char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
142 int i;
143 struct sta_info *sta = file->private_data;
144 for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
145 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
146 le16_to_cpu(sta->last_seq_ctrl[i]));
147 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
148 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
149 }
150 STA_OPS(last_seq_ctrl);
151
152 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
153 static ssize_t sta_wme_rx_queue_read(struct file *file, char __user *userbuf,
154 size_t count, loff_t *ppos)
155 {
156 char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
157 int i;
158 struct sta_info *sta = file->private_data;
159 for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
160 p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
161 sta->wme_rx_queue[i]);
162 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
163 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
164 }
165 STA_OPS(wme_rx_queue);
166
167 static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf,
168 size_t count, loff_t *ppos)
169 {
170 char buf[15*NUM_TX_DATA_QUEUES], *p = buf;
171 int i;
172 struct sta_info *sta = file->private_data;
173 for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
174 p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
175 sta->wme_tx_queue[i]);
176 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
177 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
178 }
179 STA_OPS(wme_tx_queue);
180 #endif
181
182 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
183 size_t count, loff_t *ppos)
184 {
185 char buf[768], *p = buf;
186 int i;
187 struct sta_info *sta = file->private_data;
188 p += scnprintf(p, sizeof(buf)+buf-p, "Agg state for STA is:\n");
189 p += scnprintf(p, sizeof(buf)+buf-p, " STA next dialog_token is %d \n "
190 "TIDs info is: \n TID :",
191 (sta->ampdu_mlme.dialog_token_allocator + 1));
192 for (i = 0; i < STA_TID_NUM; i++)
193 p += scnprintf(p, sizeof(buf)+buf-p, "%5d", i);
194
195 p += scnprintf(p, sizeof(buf)+buf-p, "\n RX :");
196 for (i = 0; i < STA_TID_NUM; i++)
197 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
198 sta->ampdu_mlme.tid_rx[i].state);
199
200 p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:");
201 for (i = 0; i < STA_TID_NUM; i++)
202 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
203 sta->ampdu_mlme.tid_rx[i].dialog_token);
204
205 p += scnprintf(p, sizeof(buf)+buf-p, "\n TX :");
206 for (i = 0; i < STA_TID_NUM; i++)
207 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
208 sta->ampdu_mlme.tid_tx[i].state);
209
210 p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:");
211 for (i = 0; i < STA_TID_NUM; i++)
212 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
213 sta->ampdu_mlme.tid_tx[i].dialog_token);
214
215 p += scnprintf(p, sizeof(buf)+buf-p, "\n SSN :");
216 for (i = 0; i < STA_TID_NUM; i++)
217 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
218 sta->ampdu_mlme.tid_tx[i].ssn);
219
220 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
221
222 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
223 }
224
225 static ssize_t sta_agg_status_write(struct file *file,
226 const char __user *user_buf, size_t count, loff_t *ppos)
227 {
228 struct sta_info *sta = file->private_data;
229 struct net_device *dev = sta->dev;
230 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
231 struct ieee80211_hw *hw = &local->hw;
232 u8 *da = sta->addr;
233 static int tid_static_tx[16] = {0, 0, 0, 0, 0, 0, 0, 0,
234 0, 0, 0, 0, 0, 0, 0, 0};
235 static int tid_static_rx[16] = {1, 1, 1, 1, 1, 1, 1, 1,
236 1, 1, 1, 1, 1, 1, 1, 1};
237 char *endp;
238 char buf[32];
239 int buf_size, rs;
240 unsigned int tid_num;
241 char state[4];
242
243 memset(buf, 0x00, sizeof(buf));
244 buf_size = min(count, (sizeof(buf)-1));
245 if (copy_from_user(buf, user_buf, buf_size))
246 return -EFAULT;
247
248 tid_num = simple_strtoul(buf, &endp, 0);
249 if (endp == buf)
250 return -EINVAL;
251
252 if ((tid_num >= 100) && (tid_num <= 115)) {
253 /* toggle Rx aggregation command */
254 tid_num = tid_num - 100;
255 if (tid_static_rx[tid_num] == 1) {
256 strcpy(state, "off ");
257 ieee80211_sta_stop_rx_ba_session(dev, da, tid_num, 0,
258 WLAN_REASON_QSTA_REQUIRE_SETUP);
259 sta->ampdu_mlme.tid_rx[tid_num].buf_size = 0xFF;
260 tid_static_rx[tid_num] = 0;
261 } else {
262 strcpy(state, "on ");
263 sta->ampdu_mlme.tid_rx[tid_num].buf_size = 0x00;
264 tid_static_rx[tid_num] = 1;
265 }
266 printk(KERN_DEBUG "debugfs - try switching tid %u %s\n",
267 tid_num, state);
268 } else if ((tid_num >= 0) && (tid_num <= 15)) {
269 /* toggle Tx aggregation command */
270 if (tid_static_tx[tid_num] == 0) {
271 strcpy(state, "on ");
272 rs = ieee80211_start_tx_ba_session(hw, da, tid_num);
273 if (rs == 0)
274 tid_static_tx[tid_num] = 1;
275 } else {
276 strcpy(state, "off");
277 rs = ieee80211_stop_tx_ba_session(hw, da, tid_num, 1);
278 if (rs == 0)
279 tid_static_tx[tid_num] = 0;
280 }
281 printk(KERN_DEBUG "debugfs - switching tid %u %s, return=%d\n",
282 tid_num, state, rs);
283 }
284
285 return count;
286 }
287 STA_OPS_WR(agg_status);
288
289 #define DEBUGFS_ADD(name) \
290 sta->debugfs.name = debugfs_create_file(#name, 0444, \
291 sta->debugfs.dir, sta, &sta_ ##name## _ops);
292
293 #define DEBUGFS_DEL(name) \
294 debugfs_remove(sta->debugfs.name);\
295 sta->debugfs.name = NULL;
296
297
298 void ieee80211_sta_debugfs_add(struct sta_info *sta)
299 {
300 struct dentry *stations_dir = sta->local->debugfs.stations;
301 DECLARE_MAC_BUF(mac);
302
303 if (!stations_dir)
304 return;
305
306 print_mac(mac, sta->addr);
307
308 sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
309 if (!sta->debugfs.dir)
310 return;
311
312 DEBUGFS_ADD(flags);
313 DEBUGFS_ADD(num_ps_buf_frames);
314 DEBUGFS_ADD(last_ack_rssi);
315 DEBUGFS_ADD(last_ack_ms);
316 DEBUGFS_ADD(inactive_ms);
317 DEBUGFS_ADD(last_seq_ctrl);
318 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
319 DEBUGFS_ADD(wme_rx_queue);
320 DEBUGFS_ADD(wme_tx_queue);
321 #endif
322 DEBUGFS_ADD(agg_status);
323 }
324
325 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
326 {
327 DEBUGFS_DEL(flags);
328 DEBUGFS_DEL(num_ps_buf_frames);
329 DEBUGFS_DEL(last_ack_rssi);
330 DEBUGFS_DEL(last_ack_ms);
331 DEBUGFS_DEL(inactive_ms);
332 DEBUGFS_DEL(last_seq_ctrl);
333 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
334 DEBUGFS_DEL(wme_rx_queue);
335 DEBUGFS_DEL(wme_tx_queue);
336 #endif
337 DEBUGFS_DEL(agg_status);
338
339 debugfs_remove(sta->debugfs.dir);
340 sta->debugfs.dir = NULL;
341 }
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