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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
19
20#define STA_READ(name, buflen, field, format_string) \
21static 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) \
37static const struct file_operations sta_ ##name## _ops = { \
38 .read = sta_##name##_read, \
39 .open = mac80211_open_file_generic, \
40}
41
42#define STA_FILE(name, field, format) \
43 STA_READ_##format(name, field) \
44 STA_OPS(name)
45
46STA_FILE(aid, sta.aid, D);
47STA_FILE(dev, sdata->dev->name, S);
48STA_FILE(rx_packets, rx_packets, LU);
49STA_FILE(tx_packets, tx_packets, LU);
50STA_FILE(rx_bytes, rx_bytes, LU);
51STA_FILE(tx_bytes, tx_bytes, LU);
52STA_FILE(rx_duplicates, num_duplicates, LU);
53STA_FILE(rx_fragments, rx_fragments, LU);
54STA_FILE(rx_dropped, rx_dropped, LU);
55STA_FILE(tx_fragments, tx_fragments, LU);
56STA_FILE(tx_filtered, tx_filtered_count, LU);
57STA_FILE(tx_retry_failed, tx_retry_failed, LU);
58STA_FILE(tx_retry_count, tx_retry_count, LU);
59STA_FILE(last_signal, last_signal, D);
60STA_FILE(last_qual, last_qual, D);
61STA_FILE(last_noise, last_noise, D);
62STA_FILE(wep_weak_iv_count, wep_weak_iv_count, LU);
63
64static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
65 size_t count, loff_t *ppos)
66{
67 char buf[100];
68 struct sta_info *sta = file->private_data;
69 u32 staflags = get_sta_flags(sta);
70 int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s",
71 staflags & WLAN_STA_AUTH ? "AUTH\n" : "",
72 staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
73 staflags & WLAN_STA_PS ? "PS\n" : "",
74 staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
75 staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
76 staflags & WLAN_STA_WME ? "WME\n" : "",
77 staflags & WLAN_STA_WDS ? "WDS\n" : "",
78 staflags & WLAN_STA_MFP ? "MFP\n" : "");
79 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
80}
81STA_OPS(flags);
82
83static ssize_t sta_num_ps_buf_frames_read(struct file *file,
84 char __user *userbuf,
85 size_t count, loff_t *ppos)
86{
87 char buf[20];
88 struct sta_info *sta = file->private_data;
89 int res = scnprintf(buf, sizeof(buf), "%u\n",
90 skb_queue_len(&sta->ps_tx_buf));
91 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
92}
93STA_OPS(num_ps_buf_frames);
94
95static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
96 size_t count, loff_t *ppos)
97{
98 char buf[20];
99 struct sta_info *sta = file->private_data;
100 int res = scnprintf(buf, sizeof(buf), "%d\n",
101 jiffies_to_msecs(jiffies - sta->last_rx));
102 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
103}
104STA_OPS(inactive_ms);
105
106static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
107 size_t count, loff_t *ppos)
108{
109 char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
110 int i;
111 struct sta_info *sta = file->private_data;
112 for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
113 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
114 le16_to_cpu(sta->last_seq_ctrl[i]));
115 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
116 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
117}
118STA_OPS(last_seq_ctrl);
119
120static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
121 size_t count, loff_t *ppos)
122{
123 char buf[30 + STA_TID_NUM * 70], *p = buf;
124 int i;
125 struct sta_info *sta = file->private_data;
126
127 spin_lock_bh(&sta->lock);
128 p += scnprintf(p, sizeof(buf)+buf-p, "next dialog_token is %#02x\n",
129 sta->ampdu_mlme.dialog_token_allocator + 1);
130 for (i = 0; i < STA_TID_NUM; i++) {
131 p += scnprintf(p, sizeof(buf)+buf-p, "TID %02d:", i);
132 p += scnprintf(p, sizeof(buf)+buf-p, " RX=%x",
133 sta->ampdu_mlme.tid_state_rx[i]);
134 p += scnprintf(p, sizeof(buf)+buf-p, "/DTKN=%#.2x",
135 sta->ampdu_mlme.tid_state_rx[i] ?
136 sta->ampdu_mlme.tid_rx[i]->dialog_token : 0);
137 p += scnprintf(p, sizeof(buf)+buf-p, "/SSN=%#.3x",
138 sta->ampdu_mlme.tid_state_rx[i] ?
139 sta->ampdu_mlme.tid_rx[i]->ssn : 0);
140
141 p += scnprintf(p, sizeof(buf)+buf-p, " TX=%x",
142 sta->ampdu_mlme.tid_state_tx[i]);
143 p += scnprintf(p, sizeof(buf)+buf-p, "/DTKN=%#.2x",
144 sta->ampdu_mlme.tid_state_tx[i] ?
145 sta->ampdu_mlme.tid_tx[i]->dialog_token : 0);
146 p += scnprintf(p, sizeof(buf)+buf-p, "/SSN=%#.3x",
147 sta->ampdu_mlme.tid_state_tx[i] ?
148 sta->ampdu_mlme.tid_tx[i]->ssn : 0);
149 p += scnprintf(p, sizeof(buf)+buf-p, "/pending=%03d",
150 sta->ampdu_mlme.tid_state_tx[i] ?
151 skb_queue_len(&sta->ampdu_mlme.tid_tx[i]->pending) : 0);
152 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
153 }
154 spin_unlock_bh(&sta->lock);
155
156 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
157}
158STA_OPS(agg_status);
159
160#define DEBUGFS_ADD(name) \
161 sta->debugfs.name = debugfs_create_file(#name, 0400, \
162 sta->debugfs.dir, sta, &sta_ ##name## _ops);
163
164#define DEBUGFS_DEL(name) \
165 debugfs_remove(sta->debugfs.name);\
166 sta->debugfs.name = NULL;
167
168
169void ieee80211_sta_debugfs_add(struct sta_info *sta)
170{
171 struct dentry *stations_dir = sta->local->debugfs.stations;
172 u8 mac[3*ETH_ALEN];
173
174 sta->debugfs.add_has_run = true;
175
176 if (!stations_dir)
177 return;
178
179 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
180
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189
190 sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
191 if (!sta->debugfs.dir)
192 return;
193
194 DEBUGFS_ADD(flags);
195 DEBUGFS_ADD(num_ps_buf_frames);
196 DEBUGFS_ADD(inactive_ms);
197 DEBUGFS_ADD(last_seq_ctrl);
198 DEBUGFS_ADD(agg_status);
199 DEBUGFS_ADD(dev);
200 DEBUGFS_ADD(rx_packets);
201 DEBUGFS_ADD(tx_packets);
202 DEBUGFS_ADD(rx_bytes);
203 DEBUGFS_ADD(tx_bytes);
204 DEBUGFS_ADD(rx_duplicates);
205 DEBUGFS_ADD(rx_fragments);
206 DEBUGFS_ADD(rx_dropped);
207 DEBUGFS_ADD(tx_fragments);
208 DEBUGFS_ADD(tx_filtered);
209 DEBUGFS_ADD(tx_retry_failed);
210 DEBUGFS_ADD(tx_retry_count);
211 DEBUGFS_ADD(last_signal);
212 DEBUGFS_ADD(last_qual);
213 DEBUGFS_ADD(last_noise);
214 DEBUGFS_ADD(wep_weak_iv_count);
215}
216
217void ieee80211_sta_debugfs_remove(struct sta_info *sta)
218{
219 DEBUGFS_DEL(flags);
220 DEBUGFS_DEL(num_ps_buf_frames);
221 DEBUGFS_DEL(inactive_ms);
222 DEBUGFS_DEL(last_seq_ctrl);
223 DEBUGFS_DEL(agg_status);
224 DEBUGFS_DEL(aid);
225 DEBUGFS_DEL(dev);
226 DEBUGFS_DEL(rx_packets);
227 DEBUGFS_DEL(tx_packets);
228 DEBUGFS_DEL(rx_bytes);
229 DEBUGFS_DEL(tx_bytes);
230 DEBUGFS_DEL(rx_duplicates);
231 DEBUGFS_DEL(rx_fragments);
232 DEBUGFS_DEL(rx_dropped);
233 DEBUGFS_DEL(tx_fragments);
234 DEBUGFS_DEL(tx_filtered);
235 DEBUGFS_DEL(tx_retry_failed);
236 DEBUGFS_DEL(tx_retry_count);
237 DEBUGFS_DEL(last_signal);
238 DEBUGFS_DEL(last_qual);
239 DEBUGFS_DEL(last_noise);
240 DEBUGFS_DEL(wep_weak_iv_count);
241
242 debugfs_remove(sta->debugfs.dir);
243 sta->debugfs.dir = NULL;
244}
245
