2 * Copyright 2003-2005 Devicescape Software, Inc.
3 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
4 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
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.
11 #include <linux/kobject.h>
12 #include "ieee80211_i.h"
13 #include "ieee80211_key.h"
15 #include "debugfs_key.h"
17 #define KEY_READ(name, buflen, format_string) \
18 static ssize_t key_##name##_read(struct file *file, \
19 char __user *userbuf, \
20 size_t count, loff_t *ppos) \
23 struct ieee80211_key *key = file->private_data; \
24 int res = scnprintf(buf, buflen, format_string, key->name); \
25 return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
27 #define KEY_READ_D(name) KEY_READ(name, 20, "%d\n")
29 #define KEY_OPS(name) \
30 static const struct file_operations key_ ##name## _ops = { \
31 .read = key_##name##_read, \
32 .open = mac80211_open_file_generic, \
35 #define KEY_FILE(name, format) \
36 KEY_READ_##format(name) \
40 KEY_FILE(force_sw_encrypt
, D
);
42 KEY_FILE(hw_key_idx
, D
);
43 KEY_FILE(tx_rx_count
, D
);
45 static ssize_t
key_algorithm_read(struct file
*file
,
47 size_t count
, loff_t
*ppos
)
50 struct ieee80211_key
*key
= file
->private_data
;
65 return simple_read_from_buffer(userbuf
, count
, ppos
, alg
, strlen(alg
));
69 static ssize_t
key_tx_spec_read(struct file
*file
, char __user
*userbuf
,
70 size_t count
, loff_t
*ppos
)
75 struct ieee80211_key
*key
= file
->private_data
;
79 len
= scnprintf(buf
, sizeof(buf
), "\n");
82 len
= scnprintf(buf
, sizeof(buf
), "%08x %04x\n",
87 tpn
= key
->u
.ccmp
.tx_pn
;
88 len
= scnprintf(buf
, sizeof(buf
), "%02x%02x%02x%02x%02x%02x\n",
89 tpn
[0], tpn
[1], tpn
[2], tpn
[3], tpn
[4], tpn
[5]);
94 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, len
);
98 static ssize_t
key_rx_spec_read(struct file
*file
, char __user
*userbuf
,
99 size_t count
, loff_t
*ppos
)
101 struct ieee80211_key
*key
= file
->private_data
;
102 char buf
[14*NUM_RX_DATA_QUEUES
+1], *p
= buf
;
108 len
= scnprintf(buf
, sizeof(buf
), "\n");
111 for (i
= 0; i
< NUM_RX_DATA_QUEUES
; i
++)
112 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
,
114 key
->u
.tkip
.iv32_rx
[i
],
115 key
->u
.tkip
.iv16_rx
[i
]);
119 for (i
= 0; i
< NUM_RX_DATA_QUEUES
; i
++) {
120 rpn
= key
->u
.ccmp
.rx_pn
[i
];
121 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
,
122 "%02x%02x%02x%02x%02x%02x\n",
123 rpn
[0], rpn
[1], rpn
[2],
124 rpn
[3], rpn
[4], rpn
[5]);
131 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, len
);
135 static ssize_t
key_replays_read(struct file
*file
, char __user
*userbuf
,
136 size_t count
, loff_t
*ppos
)
138 struct ieee80211_key
*key
= file
->private_data
;
142 if (key
->alg
!= ALG_CCMP
)
144 len
= scnprintf(buf
, sizeof(buf
), "%u\n", key
->u
.ccmp
.replays
);
145 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, len
);
149 static ssize_t
key_key_read(struct file
*file
, char __user
*userbuf
,
150 size_t count
, loff_t
*ppos
)
152 struct ieee80211_key
*key
= file
->private_data
;
153 int i
, res
, bufsize
= 2*key
->keylen
+2;
154 char *buf
= kmalloc(bufsize
, GFP_KERNEL
);
157 for (i
= 0; i
< key
->keylen
; i
++)
158 p
+= scnprintf(p
, bufsize
+buf
-p
, "%02x", key
->key
[i
]);
159 p
+= scnprintf(p
, bufsize
+buf
-p
, "\n");
160 res
= simple_read_from_buffer(userbuf
, count
, ppos
, buf
, p
- buf
);
166 #define DEBUGFS_ADD(name) \
167 key->debugfs.name = debugfs_create_file(#name, 0400,\
168 key->debugfs.dir, key, &key_##name##_ops);
170 void ieee80211_debugfs_key_add(struct ieee80211_local
*local
,
171 struct ieee80211_key
*key
)
176 if (!local
->debugfs
.keys
)
179 sprintf(buf
, "%d", keycount
);
181 key
->debugfs
.dir
= debugfs_create_dir(buf
,
182 local
->debugfs
.keys
);
184 if (!key
->debugfs
.dir
)
188 DEBUGFS_ADD(force_sw_encrypt
);
190 DEBUGFS_ADD(hw_key_idx
);
191 DEBUGFS_ADD(tx_rx_count
);
192 DEBUGFS_ADD(algorithm
);
193 DEBUGFS_ADD(tx_spec
);
194 DEBUGFS_ADD(rx_spec
);
195 DEBUGFS_ADD(replays
);
199 #define DEBUGFS_DEL(name) \
200 debugfs_remove(key->debugfs.name); key->debugfs.name = NULL;
202 void ieee80211_debugfs_key_remove(struct ieee80211_key
*key
)
208 DEBUGFS_DEL(force_sw_encrypt
);
210 DEBUGFS_DEL(hw_key_idx
);
211 DEBUGFS_DEL(tx_rx_count
);
212 DEBUGFS_DEL(algorithm
);
213 DEBUGFS_DEL(tx_spec
);
214 DEBUGFS_DEL(rx_spec
);
215 DEBUGFS_DEL(replays
);
218 debugfs_remove(key
->debugfs
.stalink
);
219 key
->debugfs
.stalink
= NULL
;
220 debugfs_remove(key
->debugfs
.dir
);
221 key
->debugfs
.dir
= NULL
;
223 void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data
*sdata
)
227 if (!sdata
->debugfsdir
)
230 sprintf(buf
, "../keys/%d", sdata
->default_key
->keyidx
);
231 sdata
->debugfs
.default_key
=
232 debugfs_create_symlink("default_key", sdata
->debugfsdir
, buf
);
234 void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data
*sdata
)
239 debugfs_remove(sdata
->debugfs
.default_key
);
240 sdata
->debugfs
.default_key
= NULL
;
242 void ieee80211_debugfs_key_sta_link(struct ieee80211_key
*key
,
243 struct sta_info
*sta
)
247 if (!key
->debugfs
.dir
)
250 sprintf(buf
, "../../stations/" MAC_FMT
, MAC_ARG(sta
->addr
));
251 key
->debugfs
.stalink
=
252 debugfs_create_symlink("station", key
->debugfs
.dir
, buf
);
255 void ieee80211_debugfs_key_sta_del(struct ieee80211_key
*key
,
256 struct sta_info
*sta
)
258 debugfs_remove(key
->debugfs
.stalink
);
259 key
->debugfs
.stalink
= NULL
;