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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 | ||
17741cdc | 53 | STA_FILE(aid, sta.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); | |
e9f207f0 | 66 | STA_FILE(last_signal, last_signal, D); |
566bfe5a | 67 | STA_FILE(last_qual, last_qual, D); |
e9f207f0 | 68 | STA_FILE(last_noise, last_noise, D); |
693b1bbc | 69 | STA_FILE(wep_weak_iv_count, wep_weak_iv_count, LU); |
e9f207f0 JB |
70 | |
71 | static ssize_t sta_flags_read(struct file *file, char __user *userbuf, | |
72 | size_t count, loff_t *ppos) | |
73 | { | |
74 | char buf[100]; | |
75 | struct sta_info *sta = file->private_data; | |
07346f81 | 76 | u32 staflags = get_sta_flags(sta); |
836341a7 | 77 | int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s", |
07346f81 JB |
78 | staflags & WLAN_STA_AUTH ? "AUTH\n" : "", |
79 | staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "", | |
80 | staflags & WLAN_STA_PS ? "PS\n" : "", | |
81 | staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "", | |
82 | staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "", | |
83 | staflags & WLAN_STA_WME ? "WME\n" : "", | |
84 | staflags & WLAN_STA_WDS ? "WDS\n" : ""); | |
e9f207f0 JB |
85 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); |
86 | } | |
87 | STA_OPS(flags); | |
88 | ||
89 | static ssize_t sta_num_ps_buf_frames_read(struct file *file, | |
90 | char __user *userbuf, | |
91 | size_t count, loff_t *ppos) | |
92 | { | |
93 | char buf[20]; | |
94 | struct sta_info *sta = file->private_data; | |
95 | int res = scnprintf(buf, sizeof(buf), "%u\n", | |
96 | skb_queue_len(&sta->ps_tx_buf)); | |
97 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); | |
98 | } | |
99 | STA_OPS(num_ps_buf_frames); | |
100 | ||
e9f207f0 JB |
101 | static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf, |
102 | size_t count, loff_t *ppos) | |
103 | { | |
104 | char buf[20]; | |
105 | struct sta_info *sta = file->private_data; | |
106 | int res = scnprintf(buf, sizeof(buf), "%d\n", | |
107 | jiffies_to_msecs(jiffies - sta->last_rx)); | |
108 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); | |
109 | } | |
110 | STA_OPS(inactive_ms); | |
111 | ||
112 | static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf, | |
113 | size_t count, loff_t *ppos) | |
114 | { | |
115 | char buf[15*NUM_RX_DATA_QUEUES], *p = buf; | |
116 | int i; | |
117 | struct sta_info *sta = file->private_data; | |
118 | for (i = 0; i < NUM_RX_DATA_QUEUES; i++) | |
119 | p += scnprintf(p, sizeof(buf)+buf-p, "%x ", | |
ba9b07d0 | 120 | le16_to_cpu(sta->last_seq_ctrl[i])); |
e9f207f0 JB |
121 | p += scnprintf(p, sizeof(buf)+buf-p, "\n"); |
122 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); | |
123 | } | |
124 | STA_OPS(last_seq_ctrl); | |
125 | ||
eb2ba62e RR |
126 | static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, |
127 | size_t count, loff_t *ppos) | |
128 | { | |
129 | char buf[768], *p = buf; | |
130 | int i; | |
131 | struct sta_info *sta = file->private_data; | |
132 | p += scnprintf(p, sizeof(buf)+buf-p, "Agg state for STA is:\n"); | |
133 | p += scnprintf(p, sizeof(buf)+buf-p, " STA next dialog_token is %d \n " | |
134 | "TIDs info is: \n TID :", | |
135 | (sta->ampdu_mlme.dialog_token_allocator + 1)); | |
136 | for (i = 0; i < STA_TID_NUM; i++) | |
137 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", i); | |
138 | ||
139 | p += scnprintf(p, sizeof(buf)+buf-p, "\n RX :"); | |
140 | for (i = 0; i < STA_TID_NUM; i++) | |
141 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
cee24a3e | 142 | sta->ampdu_mlme.tid_state_rx[i]); |
eb2ba62e RR |
143 | |
144 | p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:"); | |
145 | for (i = 0; i < STA_TID_NUM; i++) | |
146 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
cee24a3e RR |
147 | sta->ampdu_mlme.tid_state_rx[i]? |
148 | sta->ampdu_mlme.tid_rx[i]->dialog_token : 0); | |
eb2ba62e RR |
149 | |
150 | p += scnprintf(p, sizeof(buf)+buf-p, "\n TX :"); | |
151 | for (i = 0; i < STA_TID_NUM; i++) | |
152 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
cee24a3e | 153 | sta->ampdu_mlme.tid_state_tx[i]); |
eb2ba62e RR |
154 | |
155 | p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:"); | |
156 | for (i = 0; i < STA_TID_NUM; i++) | |
157 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
cee24a3e RR |
158 | sta->ampdu_mlme.tid_state_tx[i]? |
159 | sta->ampdu_mlme.tid_tx[i]->dialog_token : 0); | |
eb2ba62e RR |
160 | |
161 | p += scnprintf(p, sizeof(buf)+buf-p, "\n SSN :"); | |
162 | for (i = 0; i < STA_TID_NUM; i++) | |
163 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
cee24a3e RR |
164 | sta->ampdu_mlme.tid_state_tx[i]? |
165 | sta->ampdu_mlme.tid_tx[i]->ssn : 0); | |
eb2ba62e RR |
166 | |
167 | p += scnprintf(p, sizeof(buf)+buf-p, "\n"); | |
168 | ||
169 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); | |
170 | } | |
171 | ||
172 | static ssize_t sta_agg_status_write(struct file *file, | |
173 | const char __user *user_buf, size_t count, loff_t *ppos) | |
174 | { | |
175 | struct sta_info *sta = file->private_data; | |
133b8226 | 176 | struct ieee80211_local *local = sta->sdata->local; |
eb2ba62e | 177 | struct ieee80211_hw *hw = &local->hw; |
17741cdc | 178 | u8 *da = sta->sta.addr; |
eb2ba62e RR |
179 | static int tid_static_tx[16] = {0, 0, 0, 0, 0, 0, 0, 0, |
180 | 0, 0, 0, 0, 0, 0, 0, 0}; | |
181 | static int tid_static_rx[16] = {1, 1, 1, 1, 1, 1, 1, 1, | |
182 | 1, 1, 1, 1, 1, 1, 1, 1}; | |
183 | char *endp; | |
184 | char buf[32]; | |
185 | int buf_size, rs; | |
186 | unsigned int tid_num; | |
187 | char state[4]; | |
188 | ||
189 | memset(buf, 0x00, sizeof(buf)); | |
190 | buf_size = min(count, (sizeof(buf)-1)); | |
191 | if (copy_from_user(buf, user_buf, buf_size)) | |
192 | return -EFAULT; | |
193 | ||
194 | tid_num = simple_strtoul(buf, &endp, 0); | |
195 | if (endp == buf) | |
196 | return -EINVAL; | |
197 | ||
198 | if ((tid_num >= 100) && (tid_num <= 115)) { | |
199 | /* toggle Rx aggregation command */ | |
200 | tid_num = tid_num - 100; | |
201 | if (tid_static_rx[tid_num] == 1) { | |
202 | strcpy(state, "off "); | |
f698d856 | 203 | ieee80211_sta_stop_rx_ba_session(sta->sdata, da, tid_num, 0, |
eb2ba62e | 204 | WLAN_REASON_QSTA_REQUIRE_SETUP); |
cee24a3e | 205 | sta->ampdu_mlme.tid_state_rx[tid_num] |= |
24709182 | 206 | HT_AGG_STATE_DEBUGFS_CTL; |
eb2ba62e RR |
207 | tid_static_rx[tid_num] = 0; |
208 | } else { | |
209 | strcpy(state, "on "); | |
cee24a3e | 210 | sta->ampdu_mlme.tid_state_rx[tid_num] &= |
24709182 | 211 | ~HT_AGG_STATE_DEBUGFS_CTL; |
eb2ba62e RR |
212 | tid_static_rx[tid_num] = 1; |
213 | } | |
214 | printk(KERN_DEBUG "debugfs - try switching tid %u %s\n", | |
215 | tid_num, state); | |
216 | } else if ((tid_num >= 0) && (tid_num <= 15)) { | |
217 | /* toggle Tx aggregation command */ | |
218 | if (tid_static_tx[tid_num] == 0) { | |
219 | strcpy(state, "on "); | |
220 | rs = ieee80211_start_tx_ba_session(hw, da, tid_num); | |
221 | if (rs == 0) | |
222 | tid_static_tx[tid_num] = 1; | |
223 | } else { | |
224 | strcpy(state, "off"); | |
225 | rs = ieee80211_stop_tx_ba_session(hw, da, tid_num, 1); | |
226 | if (rs == 0) | |
227 | tid_static_tx[tid_num] = 0; | |
228 | } | |
229 | printk(KERN_DEBUG "debugfs - switching tid %u %s, return=%d\n", | |
230 | tid_num, state, rs); | |
231 | } | |
232 | ||
233 | return count; | |
234 | } | |
235 | STA_OPS_WR(agg_status); | |
236 | ||
e9f207f0 | 237 | #define DEBUGFS_ADD(name) \ |
bebb8a5e | 238 | sta->debugfs.name = debugfs_create_file(#name, 0400, \ |
e9f207f0 JB |
239 | sta->debugfs.dir, sta, &sta_ ##name## _ops); |
240 | ||
241 | #define DEBUGFS_DEL(name) \ | |
242 | debugfs_remove(sta->debugfs.name);\ | |
243 | sta->debugfs.name = NULL; | |
244 | ||
245 | ||
246 | void ieee80211_sta_debugfs_add(struct sta_info *sta) | |
247 | { | |
e9f207f0 | 248 | struct dentry *stations_dir = sta->local->debugfs.stations; |
f3af89d1 JB |
249 | DECLARE_MAC_BUF(mbuf); |
250 | u8 *mac; | |
e9f207f0 JB |
251 | |
252 | if (!stations_dir) | |
253 | return; | |
254 | ||
17741cdc | 255 | mac = print_mac(mbuf, sta->sta.addr); |
e9f207f0 | 256 | |
0795af57 | 257 | sta->debugfs.dir = debugfs_create_dir(mac, stations_dir); |
e9f207f0 JB |
258 | if (!sta->debugfs.dir) |
259 | return; | |
260 | ||
261 | DEBUGFS_ADD(flags); | |
262 | DEBUGFS_ADD(num_ps_buf_frames); | |
e9f207f0 JB |
263 | DEBUGFS_ADD(inactive_ms); |
264 | DEBUGFS_ADD(last_seq_ctrl); | |
eb2ba62e | 265 | DEBUGFS_ADD(agg_status); |
e9f207f0 JB |
266 | } |
267 | ||
268 | void ieee80211_sta_debugfs_remove(struct sta_info *sta) | |
269 | { | |
270 | DEBUGFS_DEL(flags); | |
271 | DEBUGFS_DEL(num_ps_buf_frames); | |
e9f207f0 JB |
272 | DEBUGFS_DEL(inactive_ms); |
273 | DEBUGFS_DEL(last_seq_ctrl); | |
eb2ba62e | 274 | DEBUGFS_DEL(agg_status); |
e9f207f0 JB |
275 | |
276 | debugfs_remove(sta->debugfs.dir); | |
277 | sta->debugfs.dir = NULL; | |
278 | } |