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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_READ_RATE(name, field) \ | |
37 | static 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) \ | |
53 | static 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 | ||
62 | STA_FILE(aid, aid, D); | |
63 | STA_FILE(key_idx_compression, key_idx_compression, D); | |
64 | STA_FILE(dev, dev->name, S); | |
65 | STA_FILE(vlan_id, vlan_id, D); | |
66 | STA_FILE(rx_packets, rx_packets, LU); | |
67 | STA_FILE(tx_packets, tx_packets, LU); | |
68 | STA_FILE(rx_bytes, rx_bytes, LU); | |
69 | STA_FILE(tx_bytes, tx_bytes, LU); | |
70 | STA_FILE(rx_duplicates, num_duplicates, LU); | |
71 | STA_FILE(rx_fragments, rx_fragments, LU); | |
72 | STA_FILE(rx_dropped, rx_dropped, LU); | |
73 | STA_FILE(tx_fragments, tx_fragments, LU); | |
74 | STA_FILE(tx_filtered, tx_filtered_count, LU); | |
75 | STA_FILE(txrate, txrate, RATE); | |
76 | STA_FILE(last_txrate, last_txrate, RATE); | |
77 | STA_FILE(tx_retry_failed, tx_retry_failed, LU); | |
78 | STA_FILE(tx_retry_count, tx_retry_count, LU); | |
79 | STA_FILE(last_rssi, last_rssi, D); | |
80 | STA_FILE(last_signal, last_signal, D); | |
81 | STA_FILE(last_noise, last_noise, D); | |
82 | STA_FILE(channel_use, channel_use, D); | |
83 | STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D); | |
84 | ||
85 | static 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 | } | |
102 | STA_OPS(flags); | |
103 | ||
104 | static 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 | } | |
114 | STA_OPS(num_ps_buf_frames); | |
115 | ||
116 | static 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 | } | |
127 | STA_OPS(last_ack_rssi); | |
128 | ||
129 | static 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 | } | |
139 | STA_OPS(last_ack_ms); | |
140 | ||
141 | static 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 | } | |
150 | STA_OPS(inactive_ms); | |
151 | ||
152 | static 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 | } | |
164 | STA_OPS(last_seq_ctrl); | |
165 | ||
166 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS | |
167 | static 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 | } | |
179 | STA_OPS(wme_rx_queue); | |
180 | ||
181 | static 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 | } | |
193 | STA_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 | ||
205 | void 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 | ||
231 | void 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 | } |