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Viewing changes to updates/wireless/rt2x00/mac80211/debugfs_key.c

  • Committer: Bazaar Package Importer
  • Author(s): Tim Gardner, Stefan Bader, Tim Gardner
  • Date: 2008-04-08 11:10:39 UTC
  • Revision ID: james.westby@ubuntu.com-20080408111039-irwwtyicvqyx53gn
Tags: 2.6.24-16.14
https://launchpad.net/bugs/134660
[Stefan Bader]

* Added rt2x00 driver from serialmonkey.org
  - LP: #134660

[Tim Gardner]

* Bump ABI to 16.

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updates/wireless/rt2x00/mac80211/debugfs_key.c
 
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/kobject.h>
 
12
#include "ieee80211_i.h"
 
13
#include "ieee80211_key.h"
 
14
#include "debugfs.h"
 
15
#include "debugfs_key.h"
 
16
 
 
17
#define KEY_READ(name, prop, buflen, format_string)                     \
 
18
static ssize_t key_##name##_read(struct file *file,                     \
 
19
                                 char __user *userbuf,                  \
 
20
                                 size_t count, loff_t *ppos)            \
 
21
{                                                                       \
 
22
        char buf[buflen];                                               \
 
23
        struct ieee80211_key *key = file->private_data;                 \
 
24
        int res = scnprintf(buf, buflen, format_string, key->prop);     \
 
25
        return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
 
26
}
 
27
#define KEY_READ_D(name) KEY_READ(name, name, 20, "%d\n")
 
28
#define KEY_READ_X(name) KEY_READ(name, name, 20, "0x%x\n")
 
29
 
 
30
#define KEY_OPS(name)                                                   \
 
31
static const struct file_operations key_ ##name## _ops = {              \
 
32
        .read = key_##name##_read,                                      \
 
33
        .open = mac80211_open_file_generic,                             \
 
34
}
 
35
 
 
36
#define KEY_FILE(name, format)                                          \
 
37
                 KEY_READ_##format(name)                                \
 
38
                 KEY_OPS(name)
 
39
 
 
40
#define KEY_CONF_READ(name, buflen, format_string)                      \
 
41
        KEY_READ(conf_##name, conf.name, buflen, format_string)
 
42
#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, 20, "%d\n")
 
43
 
 
44
#define KEY_CONF_OPS(name)                                              \
 
45
static const struct file_operations key_ ##name## _ops = {              \
 
46
        .read = key_conf_##name##_read,                                 \
 
47
        .open = mac80211_open_file_generic,                             \
 
48
}
 
49
 
 
50
#define KEY_CONF_FILE(name, format)                                     \
 
51
                 KEY_CONF_READ_##format(name)                           \
 
52
                 KEY_CONF_OPS(name)
 
53
 
 
54
KEY_CONF_FILE(keylen, D);
 
55
KEY_CONF_FILE(keyidx, D);
 
56
KEY_CONF_FILE(hw_key_idx, D);
 
57
KEY_FILE(flags, X);
 
58
KEY_FILE(tx_rx_count, D);
 
59
KEY_READ(ifindex, sdata->dev->ifindex, 20, "%d\n");
 
60
KEY_OPS(ifindex);
 
61
 
 
62
static ssize_t key_algorithm_read(struct file *file,
 
63
                                  char __user *userbuf,
 
64
                                  size_t count, loff_t *ppos)
 
65
{
 
66
        char *alg;
 
67
        struct ieee80211_key *key = file->private_data;
 
68
 
 
69
        switch (key->conf.alg) {
 
70
        case ALG_WEP:
 
71
                alg = "WEP\n";
 
72
                break;
 
73
        case ALG_TKIP:
 
74
                alg = "TKIP\n";
 
75
                break;
 
76
        case ALG_CCMP:
 
77
                alg = "CCMP\n";
 
78
                break;
 
79
        default:
 
80
                return 0;
 
81
        }
 
82
        return simple_read_from_buffer(userbuf, count, ppos, alg, strlen(alg));
 
83
}
 
84
KEY_OPS(algorithm);
 
85
 
 
86
static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
 
87
                                size_t count, loff_t *ppos)
 
88
{
 
89
        const u8 *tpn;
 
90
        char buf[20];
 
91
        int len;
 
92
        struct ieee80211_key *key = file->private_data;
 
93
 
 
94
        switch (key->conf.alg) {
 
95
        case ALG_WEP:
 
96
                len = scnprintf(buf, sizeof(buf), "\n");
 
97
                break;
 
98
        case ALG_TKIP:
 
99
                len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
 
100
                                key->u.tkip.iv32,
 
101
                                key->u.tkip.iv16);
 
102
                break;
 
103
        case ALG_CCMP:
 
104
                tpn = key->u.ccmp.tx_pn;
 
105
                len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
 
106
                                tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
 
107
                break;
 
108
        default:
 
109
                return 0;
 
110
        }
 
111
        return simple_read_from_buffer(userbuf, count, ppos, buf, len);
 
112
}
 
113
KEY_OPS(tx_spec);
 
114
 
 
115
static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
 
116
                                size_t count, loff_t *ppos)
 
117
{
 
118
        struct ieee80211_key *key = file->private_data;
 
119
        char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf;
 
120
        int i, len;
 
121
        const u8 *rpn;
 
122
 
 
123
        switch (key->conf.alg) {
 
124
        case ALG_WEP:
 
125
                len = scnprintf(buf, sizeof(buf), "\n");
 
126
                break;
 
127
        case ALG_TKIP:
 
128
                for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
 
129
                        p += scnprintf(p, sizeof(buf)+buf-p,
 
130
                                       "%08x %04x\n",
 
131
                                       key->u.tkip.iv32_rx[i],
 
132
                                       key->u.tkip.iv16_rx[i]);
 
133
                len = p - buf;
 
134
                break;
 
135
        case ALG_CCMP:
 
136
                for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
 
137
                        rpn = key->u.ccmp.rx_pn[i];
 
138
                        p += scnprintf(p, sizeof(buf)+buf-p,
 
139
                                       "%02x%02x%02x%02x%02x%02x\n",
 
140
                                       rpn[0], rpn[1], rpn[2],
 
141
                                       rpn[3], rpn[4], rpn[5]);
 
142
                }
 
143
                len = p - buf;
 
144
                break;
 
145
        default:
 
146
                return 0;
 
147
        }
 
148
        return simple_read_from_buffer(userbuf, count, ppos, buf, len);
 
149
}
 
150
KEY_OPS(rx_spec);
 
151
 
 
152
static ssize_t key_replays_read(struct file *file, char __user *userbuf,
 
153
                                size_t count, loff_t *ppos)
 
154
{
 
155
        struct ieee80211_key *key = file->private_data;
 
156
        char buf[20];
 
157
        int len;
 
158
 
 
159
        if (key->conf.alg != ALG_CCMP)
 
160
                return 0;
 
161
        len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
 
162
        return simple_read_from_buffer(userbuf, count, ppos, buf, len);
 
163
}
 
164
KEY_OPS(replays);
 
165
 
 
166
static ssize_t key_key_read(struct file *file, char __user *userbuf,
 
167
                            size_t count, loff_t *ppos)
 
168
{
 
169
        struct ieee80211_key *key = file->private_data;
 
170
        int i, res, bufsize = 2 * key->conf.keylen + 2;
 
171
        char *buf = kmalloc(bufsize, GFP_KERNEL);
 
172
        char *p = buf;
 
173
 
 
174
        for (i = 0; i < key->conf.keylen; i++)
 
175
                p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]);
 
176
        p += scnprintf(p, bufsize+buf-p, "\n");
 
177
        res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
 
178
        kfree(buf);
 
179
        return res;
 
180
}
 
181
KEY_OPS(key);
 
182
 
 
183
#define DEBUGFS_ADD(name) \
 
184
        key->debugfs.name = debugfs_create_file(#name, 0400,\
 
185
                                key->debugfs.dir, key, &key_##name##_ops);
 
186
 
 
187
void ieee80211_debugfs_key_add(struct ieee80211_local *local,
 
188
                               struct ieee80211_key *key)
 
189
{
 
190
        static int keycount;
 
191
        char buf[20];
 
192
 
 
193
        if (!local->debugfs.keys)
 
194
                return;
 
195
 
 
196
        sprintf(buf, "%d", keycount);
 
197
        keycount++;
 
198
        key->debugfs.dir = debugfs_create_dir(buf,
 
199
                                        local->debugfs.keys);
 
200
 
 
201
        if (!key->debugfs.dir)
 
202
                return;
 
203
 
 
204
        DEBUGFS_ADD(keylen);
 
205
        DEBUGFS_ADD(flags);
 
206
        DEBUGFS_ADD(keyidx);
 
207
        DEBUGFS_ADD(hw_key_idx);
 
208
        DEBUGFS_ADD(tx_rx_count);
 
209
        DEBUGFS_ADD(algorithm);
 
210
        DEBUGFS_ADD(tx_spec);
 
211
        DEBUGFS_ADD(rx_spec);
 
212
        DEBUGFS_ADD(replays);
 
213
        DEBUGFS_ADD(key);
 
214
        DEBUGFS_ADD(ifindex);
 
215
};
 
216
 
 
217
#define DEBUGFS_DEL(name) \
 
218
        debugfs_remove(key->debugfs.name); key->debugfs.name = NULL;
 
219
 
 
220
void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
 
221
{
 
222
        if (!key)
 
223
                return;
 
224
 
 
225
        DEBUGFS_DEL(keylen);
 
226
        DEBUGFS_DEL(flags);
 
227
        DEBUGFS_DEL(keyidx);
 
228
        DEBUGFS_DEL(hw_key_idx);
 
229
        DEBUGFS_DEL(tx_rx_count);
 
230
        DEBUGFS_DEL(algorithm);
 
231
        DEBUGFS_DEL(tx_spec);
 
232
        DEBUGFS_DEL(rx_spec);
 
233
        DEBUGFS_DEL(replays);
 
234
        DEBUGFS_DEL(key);
 
235
        DEBUGFS_DEL(ifindex);
 
236
 
 
237
        debugfs_remove(key->debugfs.stalink);
 
238
        key->debugfs.stalink = NULL;
 
239
        debugfs_remove(key->debugfs.dir);
 
240
        key->debugfs.dir = NULL;
 
241
}
 
242
void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
 
243
{
 
244
        char buf[50];
 
245
 
 
246
        if (!sdata->debugfsdir)
 
247
                return;
 
248
 
 
249
        sprintf(buf, "../keys/%d", sdata->default_key->conf.keyidx);
 
250
        sdata->debugfs.default_key =
 
251
                debugfs_create_symlink("default_key", sdata->debugfsdir, buf);
 
252
}
 
253
void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
 
254
{
 
255
        if (!sdata)
 
256
                return;
 
257
 
 
258
        debugfs_remove(sdata->debugfs.default_key);
 
259
        sdata->debugfs.default_key = NULL;
 
260
}
 
261
void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
 
262
                                    struct sta_info *sta)
 
263
{
 
264
        char buf[50];
 
265
        DECLARE_MAC_BUF(mac);
 
266
 
 
267
        if (!key->debugfs.dir)
 
268
                return;
 
269
 
 
270
        sprintf(buf, "../../stations/%s", print_mac(mac, sta->addr));
 
271
        key->debugfs.stalink =
 
272
                debugfs_create_symlink("station", key->debugfs.dir, buf);
 
273
}
 
274
 
 
275
void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
 
276
                                   struct sta_info *sta)
 
277
{
 
278
        debugfs_remove(key->debugfs.stalink);
 
279
        key->debugfs.stalink = NULL;
 
280
}