Commit | Line | Data |
---|---|---|
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 | ||
42 | #define STA_FILE(name, field, format) \ | |
43 | STA_READ_##format(name, field) \ | |
44 | STA_OPS(name) | |
45 | ||
17741cdc | 46 | STA_FILE(aid, sta.aid, D); |
d0709a65 | 47 | STA_FILE(dev, sdata->dev->name, S); |
e9f207f0 JB |
48 | STA_FILE(rx_packets, rx_packets, LU); |
49 | STA_FILE(tx_packets, tx_packets, LU); | |
50 | STA_FILE(rx_bytes, rx_bytes, LU); | |
51 | STA_FILE(tx_bytes, tx_bytes, LU); | |
52 | STA_FILE(rx_duplicates, num_duplicates, LU); | |
53 | STA_FILE(rx_fragments, rx_fragments, LU); | |
54 | STA_FILE(rx_dropped, rx_dropped, LU); | |
55 | STA_FILE(tx_fragments, tx_fragments, LU); | |
56 | STA_FILE(tx_filtered, tx_filtered_count, LU); | |
e9f207f0 JB |
57 | STA_FILE(tx_retry_failed, tx_retry_failed, LU); |
58 | STA_FILE(tx_retry_count, tx_retry_count, LU); | |
e9f207f0 | 59 | STA_FILE(last_signal, last_signal, D); |
566bfe5a | 60 | STA_FILE(last_qual, last_qual, D); |
e9f207f0 | 61 | STA_FILE(last_noise, last_noise, D); |
693b1bbc | 62 | STA_FILE(wep_weak_iv_count, wep_weak_iv_count, LU); |
e9f207f0 JB |
63 | |
64 | static 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; | |
07346f81 | 69 | u32 staflags = get_sta_flags(sta); |
836341a7 | 70 | int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s", |
07346f81 JB |
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" : ""); | |
e9f207f0 JB |
78 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); |
79 | } | |
80 | STA_OPS(flags); | |
81 | ||
82 | static ssize_t sta_num_ps_buf_frames_read(struct file *file, | |
83 | char __user *userbuf, | |
84 | size_t count, loff_t *ppos) | |
85 | { | |
86 | char buf[20]; | |
87 | struct sta_info *sta = file->private_data; | |
88 | int res = scnprintf(buf, sizeof(buf), "%u\n", | |
89 | skb_queue_len(&sta->ps_tx_buf)); | |
90 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); | |
91 | } | |
92 | STA_OPS(num_ps_buf_frames); | |
93 | ||
e9f207f0 JB |
94 | static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf, |
95 | size_t count, loff_t *ppos) | |
96 | { | |
97 | char buf[20]; | |
98 | struct sta_info *sta = file->private_data; | |
99 | int res = scnprintf(buf, sizeof(buf), "%d\n", | |
100 | jiffies_to_msecs(jiffies - sta->last_rx)); | |
101 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); | |
102 | } | |
103 | STA_OPS(inactive_ms); | |
104 | ||
105 | static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf, | |
106 | size_t count, loff_t *ppos) | |
107 | { | |
108 | char buf[15*NUM_RX_DATA_QUEUES], *p = buf; | |
109 | int i; | |
110 | struct sta_info *sta = file->private_data; | |
111 | for (i = 0; i < NUM_RX_DATA_QUEUES; i++) | |
112 | p += scnprintf(p, sizeof(buf)+buf-p, "%x ", | |
ba9b07d0 | 113 | le16_to_cpu(sta->last_seq_ctrl[i])); |
e9f207f0 JB |
114 | p += scnprintf(p, sizeof(buf)+buf-p, "\n"); |
115 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); | |
116 | } | |
117 | STA_OPS(last_seq_ctrl); | |
118 | ||
eb2ba62e RR |
119 | static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, |
120 | size_t count, loff_t *ppos) | |
121 | { | |
122 | char buf[768], *p = buf; | |
123 | int i; | |
124 | struct sta_info *sta = file->private_data; | |
125 | p += scnprintf(p, sizeof(buf)+buf-p, "Agg state for STA is:\n"); | |
126 | p += scnprintf(p, sizeof(buf)+buf-p, " STA next dialog_token is %d \n " | |
127 | "TIDs info is: \n TID :", | |
128 | (sta->ampdu_mlme.dialog_token_allocator + 1)); | |
129 | for (i = 0; i < STA_TID_NUM; i++) | |
130 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", i); | |
131 | ||
132 | p += scnprintf(p, sizeof(buf)+buf-p, "\n RX :"); | |
133 | for (i = 0; i < STA_TID_NUM; i++) | |
134 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
cee24a3e | 135 | sta->ampdu_mlme.tid_state_rx[i]); |
eb2ba62e RR |
136 | |
137 | p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:"); | |
138 | for (i = 0; i < STA_TID_NUM; i++) | |
139 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
c6a1fa12 | 140 | sta->ampdu_mlme.tid_state_rx[i] ? |
cee24a3e | 141 | sta->ampdu_mlme.tid_rx[i]->dialog_token : 0); |
eb2ba62e RR |
142 | |
143 | p += scnprintf(p, sizeof(buf)+buf-p, "\n TX :"); | |
144 | for (i = 0; i < STA_TID_NUM; i++) | |
145 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
cee24a3e | 146 | sta->ampdu_mlme.tid_state_tx[i]); |
eb2ba62e RR |
147 | |
148 | p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:"); | |
149 | for (i = 0; i < STA_TID_NUM; i++) | |
150 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
c6a1fa12 | 151 | sta->ampdu_mlme.tid_state_tx[i] ? |
cee24a3e | 152 | sta->ampdu_mlme.tid_tx[i]->dialog_token : 0); |
eb2ba62e RR |
153 | |
154 | p += scnprintf(p, sizeof(buf)+buf-p, "\n SSN :"); | |
155 | for (i = 0; i < STA_TID_NUM; i++) | |
156 | p += scnprintf(p, sizeof(buf)+buf-p, "%5d", | |
c6a1fa12 | 157 | sta->ampdu_mlme.tid_state_tx[i] ? |
cee24a3e | 158 | sta->ampdu_mlme.tid_tx[i]->ssn : 0); |
eb2ba62e RR |
159 | |
160 | p += scnprintf(p, sizeof(buf)+buf-p, "\n"); | |
161 | ||
162 | return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); | |
163 | } | |
804feeb8 | 164 | STA_OPS(agg_status); |
eb2ba62e | 165 | |
e9f207f0 | 166 | #define DEBUGFS_ADD(name) \ |
bebb8a5e | 167 | sta->debugfs.name = debugfs_create_file(#name, 0400, \ |
e9f207f0 JB |
168 | sta->debugfs.dir, sta, &sta_ ##name## _ops); |
169 | ||
170 | #define DEBUGFS_DEL(name) \ | |
171 | debugfs_remove(sta->debugfs.name);\ | |
172 | sta->debugfs.name = NULL; | |
173 | ||
174 | ||
175 | void ieee80211_sta_debugfs_add(struct sta_info *sta) | |
176 | { | |
e9f207f0 | 177 | struct dentry *stations_dir = sta->local->debugfs.stations; |
0c68ae26 | 178 | u8 mac[3*ETH_ALEN]; |
e9f207f0 | 179 | |
63044e9f JB |
180 | sta->debugfs.add_has_run = true; |
181 | ||
e9f207f0 JB |
182 | if (!stations_dir) |
183 | return; | |
184 | ||
0c68ae26 | 185 | snprintf(mac, sizeof(mac), "%pM", sta->sta.addr); |
e9f207f0 | 186 | |
63044e9f JB |
187 | /* |
188 | * This might fail due to a race condition: | |
189 | * When mac80211 unlinks a station, the debugfs entries | |
190 | * remain, but it is already possible to link a new | |
191 | * station with the same address which triggers adding | |
192 | * it to debugfs; therefore, if the old station isn't | |
193 | * destroyed quickly enough the old station's debugfs | |
194 | * dir might still be around. | |
195 | */ | |
0795af57 | 196 | sta->debugfs.dir = debugfs_create_dir(mac, stations_dir); |
e9f207f0 JB |
197 | if (!sta->debugfs.dir) |
198 | return; | |
199 | ||
200 | DEBUGFS_ADD(flags); | |
201 | DEBUGFS_ADD(num_ps_buf_frames); | |
e9f207f0 JB |
202 | DEBUGFS_ADD(inactive_ms); |
203 | DEBUGFS_ADD(last_seq_ctrl); | |
eb2ba62e | 204 | DEBUGFS_ADD(agg_status); |
e9f207f0 JB |
205 | } |
206 | ||
207 | void ieee80211_sta_debugfs_remove(struct sta_info *sta) | |
208 | { | |
209 | DEBUGFS_DEL(flags); | |
210 | DEBUGFS_DEL(num_ps_buf_frames); | |
e9f207f0 JB |
211 | DEBUGFS_DEL(inactive_ms); |
212 | DEBUGFS_DEL(last_seq_ctrl); | |
eb2ba62e | 213 | DEBUGFS_DEL(agg_status); |
e9f207f0 JB |
214 | |
215 | debugfs_remove(sta->debugfs.dir); | |
216 | sta->debugfs.dir = NULL; | |
217 | } |