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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / net / mac80211 / debugfs_sta.c
blob76839d4dfaacabe15c30f886478367ad2b524585
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_S(name, field) STA_READ(name, 20, field, "%s\n")
34
35 #define STA_OPS(name) \
36 static const struct file_operations sta_ ##name## _ops = { \
37 .read = sta_##name##_read, \
38 .open = mac80211_open_file_generic, \
39 }
40
41 #define STA_OPS_RW(name) \
42 static const struct file_operations sta_ ##name## _ops = { \
43 .read = sta_##name##_read, \
44 .write = sta_##name##_write, \
45 .open = mac80211_open_file_generic, \
46 }
47
48 #define STA_FILE(name, field, format) \
49 STA_READ_##format(name, field) \
50 STA_OPS(name)
51
52 STA_FILE(aid, sta.aid, D);
53 STA_FILE(dev, sdata->name, S);
54 STA_FILE(last_signal, last_signal, D);
55
56 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
57 size_t count, loff_t *ppos)
58 {
59 char buf[100];
60 struct sta_info *sta = file->private_data;
61 u32 staflags = get_sta_flags(sta);
62 int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
63 staflags & WLAN_STA_AUTH ? "AUTH\n" : "",
64 staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
65 staflags & WLAN_STA_PS_STA ? "PS (sta)\n" : "",
66 staflags & WLAN_STA_PS_DRIVER ? "PS (driver)\n" : "",
67 staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
68 staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
69 staflags & WLAN_STA_WME ? "WME\n" : "",
70 staflags & WLAN_STA_WDS ? "WDS\n" : "",
71 staflags & WLAN_STA_MFP ? "MFP\n" : "");
72 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
73 }
74 STA_OPS(flags);
75
76 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
77 char __user *userbuf,
78 size_t count, loff_t *ppos)
79 {
80 char buf[20];
81 struct sta_info *sta = file->private_data;
82 int res = scnprintf(buf, sizeof(buf), "%u\n",
83 skb_queue_len(&sta->ps_tx_buf));
84 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
85 }
86 STA_OPS(num_ps_buf_frames);
87
88 static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
89 size_t count, loff_t *ppos)
90 {
91 char buf[20];
92 struct sta_info *sta = file->private_data;
93 int res = scnprintf(buf, sizeof(buf), "%d\n",
94 jiffies_to_msecs(jiffies - sta->last_rx));
95 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
96 }
97 STA_OPS(inactive_ms);
98
99 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
100 size_t count, loff_t *ppos)
101 {
102 char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
103 int i;
104 struct sta_info *sta = file->private_data;
105 for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
106 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
107 le16_to_cpu(sta->last_seq_ctrl[i]));
108 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
109 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
110 }
111 STA_OPS(last_seq_ctrl);
112
113 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
114 size_t count, loff_t *ppos)
115 {
116 char buf[71 + STA_TID_NUM * 40], *p = buf;
117 int i;
118 struct sta_info *sta = file->private_data;
119
120 spin_lock_bh(&sta->lock);
121 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
122 sta->ampdu_mlme.dialog_token_allocator + 1);
123 p += scnprintf(p, sizeof(buf) + buf - p,
124 "TID\t\tRX active\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
125 for (i = 0; i < STA_TID_NUM; i++) {
126 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
127 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
128 !!sta->ampdu_mlme.tid_rx[i]);
129 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
130 sta->ampdu_mlme.tid_rx[i] ?
131 sta->ampdu_mlme.tid_rx[i]->dialog_token : 0);
132 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
133 sta->ampdu_mlme.tid_rx[i] ?
134 sta->ampdu_mlme.tid_rx[i]->ssn : 0);
135
136 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x",
137 !!sta->ampdu_mlme.tid_tx[i]);
138 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
139 sta->ampdu_mlme.tid_tx[i] ?
140 sta->ampdu_mlme.tid_tx[i]->dialog_token : 0);
141 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
142 sta->ampdu_mlme.tid_tx[i] ?
143 skb_queue_len(&sta->ampdu_mlme.tid_tx[i]->pending) : 0);
144 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
145 }
146 spin_unlock_bh(&sta->lock);
147
148 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
149 }
150
151 static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
152 size_t count, loff_t *ppos)
153 {
154 char _buf[12], *buf = _buf;
155 struct sta_info *sta = file->private_data;
156 bool start, tx;
157 unsigned long tid;
158 int ret;
159
160 if (count > sizeof(_buf))
161 return -EINVAL;
162
163 if (copy_from_user(buf, userbuf, count))
164 return -EFAULT;
165
166 buf[sizeof(_buf) - 1] = '\0';
167
168 if (strncmp(buf, "tx ", 3) == 0) {
169 buf += 3;
170 tx = true;
171 } else if (strncmp(buf, "rx ", 3) == 0) {
172 buf += 3;
173 tx = false;
174 } else
175 return -EINVAL;
176
177 if (strncmp(buf, "start ", 6) == 0) {
178 buf += 6;
179 start = true;
180 if (!tx)
181 return -EINVAL;
182 } else if (strncmp(buf, "stop ", 5) == 0) {
183 buf += 5;
184 start = false;
185 } else
186 return -EINVAL;
187
188 tid = simple_strtoul(buf, NULL, 0);
189
190 if (tid >= STA_TID_NUM)
191 return -EINVAL;
192
193 if (tx) {
194 if (start)
195 ret = ieee80211_start_tx_ba_session(&sta->sta, tid);
196 else
197 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
198 } else {
199 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, 3);
200 ret = 0;
201 }
202
203 return ret ?: count;
204 }
205 STA_OPS_RW(agg_status);
206
207 static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
208 size_t count, loff_t *ppos)
209 {
210 #define PRINT_HT_CAP(_cond, _str) \
211 do { \
212 if (_cond) \
213 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
214 } while (0)
215 char buf[512], *p = buf;
216 int i;
217 struct sta_info *sta = file->private_data;
218 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
219
220 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
221 htc->ht_supported ? "" : "not ");
222 if (htc->ht_supported) {
223 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
224
225 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
226 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
227 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
228
229 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
230 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
231 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
232
233 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
234 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
235 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
236 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
237
238 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
239 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
240 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
241 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
242
243 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
244
245 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
246 "3839 bytes");
247 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
248 "7935 bytes");
249
250 /*
251 * For beacons and probe response this would mean the BSS
252 * does or does not allow the usage of DSSS/CCK HT40.
253 * Otherwise it means the STA does or does not use
254 * DSSS/CCK HT40.
255 */
256 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
257 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
258
259 /* BIT(13) is reserved */
260
261 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
262
263 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
264
265 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
266 htc->ampdu_factor, htc->ampdu_density);
267 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
268
269 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
270 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
271 htc->mcs.rx_mask[i]);
272 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
273
274 /* If not set this is meaningless */
275 if (le16_to_cpu(htc->mcs.rx_highest)) {
276 p += scnprintf(p, sizeof(buf)+buf-p,
277 "MCS rx highest: %d Mbps\n",
278 le16_to_cpu(htc->mcs.rx_highest));
279 }
280
281 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
282 htc->mcs.tx_params);
283 }
284
285 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
286 }
287 STA_OPS(ht_capa);
288
289 #define DEBUGFS_ADD(name) \
290 debugfs_create_file(#name, 0400, \
291 sta->debugfs.dir, sta, &sta_ ##name## _ops);
292
293 #define DEBUGFS_ADD_COUNTER(name, field) \
294 if (sizeof(sta->field) == sizeof(u32)) \
295 debugfs_create_u32(#name, 0400, sta->debugfs.dir, \
296 (u32 *) &sta->field); \
297 else \
298 debugfs_create_u64(#name, 0400, sta->debugfs.dir, \
299 (u64 *) &sta->field);
300
301 void ieee80211_sta_debugfs_add(struct sta_info *sta)
302 {
303 struct dentry *stations_dir = sta->local->debugfs.stations;
304 u8 mac[3*ETH_ALEN];
305
306 sta->debugfs.add_has_run = true;
307
308 if (!stations_dir)
309 return;
310
311 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
312
313 /*
314 * This might fail due to a race condition:
315 * When mac80211 unlinks a station, the debugfs entries
316 * remain, but it is already possible to link a new
317 * station with the same address which triggers adding
318 * it to debugfs; therefore, if the old station isn't
319 * destroyed quickly enough the old station's debugfs
320 * dir might still be around.
321 */
322 sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
323 if (!sta->debugfs.dir)
324 return;
325
326 DEBUGFS_ADD(flags);
327 DEBUGFS_ADD(num_ps_buf_frames);
328 DEBUGFS_ADD(inactive_ms);
329 DEBUGFS_ADD(last_seq_ctrl);
330 DEBUGFS_ADD(agg_status);
331 DEBUGFS_ADD(dev);
332 DEBUGFS_ADD(last_signal);
333 DEBUGFS_ADD(ht_capa);
334
335 DEBUGFS_ADD_COUNTER(rx_packets, rx_packets);
336 DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);
337 DEBUGFS_ADD_COUNTER(rx_bytes, rx_bytes);
338 DEBUGFS_ADD_COUNTER(tx_bytes, tx_bytes);
339 DEBUGFS_ADD_COUNTER(rx_duplicates, num_duplicates);
340 DEBUGFS_ADD_COUNTER(rx_fragments, rx_fragments);
341 DEBUGFS_ADD_COUNTER(rx_dropped, rx_dropped);
342 DEBUGFS_ADD_COUNTER(tx_fragments, tx_fragments);
343 DEBUGFS_ADD_COUNTER(tx_filtered, tx_filtered_count);
344 DEBUGFS_ADD_COUNTER(tx_retry_failed, tx_retry_failed);
345 DEBUGFS_ADD_COUNTER(tx_retry_count, tx_retry_count);
346 DEBUGFS_ADD_COUNTER(wep_weak_iv_count, wep_weak_iv_count);
347 }
348
349 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
350 {
351 debugfs_remove_recursive(sta->debugfs.dir);
352 sta->debugfs.dir = NULL;
353 }
Tomato firmware and modifications.