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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/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 | ||
e9f207f0 JB |
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 | ||
eb2ba62e RR |
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 | ||
e9f207f0 JB |
49 | #define STA_FILE(name, field, format) \ |
50 | STA_READ_##format(name, field) \ | |
51 | STA_OPS(name) | |
52 | ||
53 | STA_FILE(aid, aid, D); | |
d0709a65 | 54 | STA_FILE(dev, sdata->dev->name, S); |
e9f207f0 JB |
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); | |
e9f207f0 JB |
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); | |
693b1bbc | 70 | STA_FILE(wep_weak_iv_count, wep_weak_iv_count, LU); |
e9f207f0 JB |
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; | |
07346f81 | 77 | u32 staflags = get_sta_flags(sta); |
836341a7 | 78 | int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s", |
07346f81 JB |
79 | staflags & WLAN_STA_AUTH ? "AUTH\n" : "", |
80 | staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "", | |
81 | staflags & WLAN_STA_PS ? "PS\n" : "", | |
82 | staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "", | |
83 | staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "", | |
84 | staflags & WLAN_STA_WME ? "WME\n" : "", | |
85 | staflags & WLAN_STA_WDS ? "WDS\n" : ""); | |
e9f207f0 JB |
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 | ||
e9f207f0 JB |
102 | static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf, |
103 | size_t count, loff_t *ppos) | |
104 | { | |
105 | char buf[20]; | |
106 | struct sta_info *sta = file->private_data; | |
107 | int res = scnprintf(buf, sizeof(buf), "%d\n", | |
108 | jiffies_to_msecs(jiffies - sta->last_rx)); | |
109 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); | |
110 | } | |
111 | STA_OPS(inactive_ms); | |
112 | ||
113 | static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf, | |
114 | size_t count, loff_t *ppos) | |
115 | { | |
116 | char buf[15*NUM_RX_DATA_QUEUES], *p = buf; | |
117 | int i; | |
118 | struct sta_info *sta = file->private_data; | |
119 | for (i = 0; i < NUM_RX_DATA_QUEUES; i++) | |
120 | p += scnprintf(p, sizeof(buf)+buf-p, "%x ", | |
ba9b07d0 | 121 | le16_to_cpu(sta->last_seq_ctrl[i])); |
e9f207f0 JB |
122 | p += scnprintf(p, sizeof(buf)+buf-p, "\n"); |
123 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); | |
124 | } | |
125 | STA_OPS(last_seq_ctrl); | |
126 | ||
eb2ba62e RR |
127 | static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, |
128 | size_t count, loff_t *ppos) | |
129 | { | |
130 | char buf[768], *p = buf; | |
131 | int i; | |
132 | struct sta_info *sta = file->private_data; | |
133 | p += scnprintf(p, sizeof(buf)+buf-p, "Agg state for STA is:\n"); | |
134 | p += scnprintf(p, sizeof(buf)+buf-p, " STA next dialog_token is %d \n " | |
135 | "TIDs info is: \n TID :", | |
136 | (sta->ampdu_mlme.dialog_token_allocator + 1)); | |
137 | for (i = 0; i < STA_TID_NUM; i++) | |
138 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", i); | |
139 | ||
140 | p += scnprintf(p, sizeof(buf)+buf-p, "\n RX :"); | |
141 | for (i = 0; i < STA_TID_NUM; i++) | |
142 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
cee24a3e | 143 | sta->ampdu_mlme.tid_state_rx[i]); |
eb2ba62e RR |
144 | |
145 | p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:"); | |
146 | for (i = 0; i < STA_TID_NUM; i++) | |
147 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
cee24a3e RR |
148 | sta->ampdu_mlme.tid_state_rx[i]? |
149 | sta->ampdu_mlme.tid_rx[i]->dialog_token : 0); | |
eb2ba62e RR |
150 | |
151 | p += scnprintf(p, sizeof(buf)+buf-p, "\n TX :"); | |
152 | for (i = 0; i < STA_TID_NUM; i++) | |
153 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
cee24a3e | 154 | sta->ampdu_mlme.tid_state_tx[i]); |
eb2ba62e RR |
155 | |
156 | p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:"); | |
157 | for (i = 0; i < STA_TID_NUM; i++) | |
158 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
cee24a3e RR |
159 | sta->ampdu_mlme.tid_state_tx[i]? |
160 | sta->ampdu_mlme.tid_tx[i]->dialog_token : 0); | |
eb2ba62e RR |
161 | |
162 | p += scnprintf(p, sizeof(buf)+buf-p, "\n SSN :"); | |
163 | for (i = 0; i < STA_TID_NUM; i++) | |
164 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
cee24a3e RR |
165 | sta->ampdu_mlme.tid_state_tx[i]? |
166 | sta->ampdu_mlme.tid_tx[i]->ssn : 0); | |
eb2ba62e RR |
167 | |
168 | p += scnprintf(p, sizeof(buf)+buf-p, "\n"); | |
169 | ||
170 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); | |
171 | } | |
172 | ||
173 | static ssize_t sta_agg_status_write(struct file *file, | |
174 | const char __user *user_buf, size_t count, loff_t *ppos) | |
175 | { | |
176 | struct sta_info *sta = file->private_data; | |
d0709a65 | 177 | struct net_device *dev = sta->sdata->dev; |
eb2ba62e RR |
178 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
179 | struct ieee80211_hw *hw = &local->hw; | |
180 | u8 *da = sta->addr; | |
181 | static int tid_static_tx[16] = {0, 0, 0, 0, 0, 0, 0, 0, | |
182 | 0, 0, 0, 0, 0, 0, 0, 0}; | |
183 | static int tid_static_rx[16] = {1, 1, 1, 1, 1, 1, 1, 1, | |
184 | 1, 1, 1, 1, 1, 1, 1, 1}; | |
185 | char *endp; | |
186 | char buf[32]; | |
187 | int buf_size, rs; | |
188 | unsigned int tid_num; | |
189 | char state[4]; | |
190 | ||
191 | memset(buf, 0x00, sizeof(buf)); | |
192 | buf_size = min(count, (sizeof(buf)-1)); | |
193 | if (copy_from_user(buf, user_buf, buf_size)) | |
194 | return -EFAULT; | |
195 | ||
196 | tid_num = simple_strtoul(buf, &endp, 0); | |
197 | if (endp == buf) | |
198 | return -EINVAL; | |
199 | ||
200 | if ((tid_num >= 100) && (tid_num <= 115)) { | |
201 | /* toggle Rx aggregation command */ | |
202 | tid_num = tid_num - 100; | |
203 | if (tid_static_rx[tid_num] == 1) { | |
204 | strcpy(state, "off "); | |
205 | ieee80211_sta_stop_rx_ba_session(dev, da, tid_num, 0, | |
206 | WLAN_REASON_QSTA_REQUIRE_SETUP); | |
cee24a3e | 207 | sta->ampdu_mlme.tid_state_rx[tid_num] |= |
24709182 | 208 | HT_AGG_STATE_DEBUGFS_CTL; |
eb2ba62e RR |
209 | tid_static_rx[tid_num] = 0; |
210 | } else { | |
211 | strcpy(state, "on "); | |
cee24a3e | 212 | sta->ampdu_mlme.tid_state_rx[tid_num] &= |
24709182 | 213 | ~HT_AGG_STATE_DEBUGFS_CTL; |
eb2ba62e RR |
214 | tid_static_rx[tid_num] = 1; |
215 | } | |
216 | printk(KERN_DEBUG "debugfs - try switching tid %u %s\n", | |
217 | tid_num, state); | |
218 | } else if ((tid_num >= 0) && (tid_num <= 15)) { | |
219 | /* toggle Tx aggregation command */ | |
220 | if (tid_static_tx[tid_num] == 0) { | |
221 | strcpy(state, "on "); | |
222 | rs = ieee80211_start_tx_ba_session(hw, da, tid_num); | |
223 | if (rs == 0) | |
224 | tid_static_tx[tid_num] = 1; | |
225 | } else { | |
226 | strcpy(state, "off"); | |
227 | rs = ieee80211_stop_tx_ba_session(hw, da, tid_num, 1); | |
228 | if (rs == 0) | |
229 | tid_static_tx[tid_num] = 0; | |
230 | } | |
231 | printk(KERN_DEBUG "debugfs - switching tid %u %s, return=%d\n", | |
232 | tid_num, state, rs); | |
233 | } | |
234 | ||
235 | return count; | |
236 | } | |
237 | STA_OPS_WR(agg_status); | |
238 | ||
e9f207f0 | 239 | #define DEBUGFS_ADD(name) \ |
bebb8a5e | 240 | sta->debugfs.name = debugfs_create_file(#name, 0400, \ |
e9f207f0 JB |
241 | sta->debugfs.dir, sta, &sta_ ##name## _ops); |
242 | ||
243 | #define DEBUGFS_DEL(name) \ | |
244 | debugfs_remove(sta->debugfs.name);\ | |
245 | sta->debugfs.name = NULL; | |
246 | ||
247 | ||
248 | void ieee80211_sta_debugfs_add(struct sta_info *sta) | |
249 | { | |
e9f207f0 | 250 | struct dentry *stations_dir = sta->local->debugfs.stations; |
f3af89d1 JB |
251 | DECLARE_MAC_BUF(mbuf); |
252 | u8 *mac; | |
e9f207f0 JB |
253 | |
254 | if (!stations_dir) | |
255 | return; | |
256 | ||
f3af89d1 | 257 | mac = print_mac(mbuf, sta->addr); |
e9f207f0 | 258 | |
0795af57 | 259 | sta->debugfs.dir = debugfs_create_dir(mac, stations_dir); |
e9f207f0 JB |
260 | if (!sta->debugfs.dir) |
261 | return; | |
262 | ||
263 | DEBUGFS_ADD(flags); | |
264 | DEBUGFS_ADD(num_ps_buf_frames); | |
e9f207f0 JB |
265 | DEBUGFS_ADD(inactive_ms); |
266 | DEBUGFS_ADD(last_seq_ctrl); | |
eb2ba62e | 267 | DEBUGFS_ADD(agg_status); |
e9f207f0 JB |
268 | } |
269 | ||
270 | void ieee80211_sta_debugfs_remove(struct sta_info *sta) | |
271 | { | |
272 | DEBUGFS_DEL(flags); | |
273 | DEBUGFS_DEL(num_ps_buf_frames); | |
e9f207f0 JB |
274 | DEBUGFS_DEL(inactive_ms); |
275 | DEBUGFS_DEL(last_seq_ctrl); | |
eb2ba62e | 276 | DEBUGFS_DEL(agg_status); |
e9f207f0 JB |
277 | |
278 | debugfs_remove(sta->debugfs.dir); | |
279 | sta->debugfs.dir = NULL; | |
280 | } |