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, 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) \
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); \
27 #define KEY_READ_D(name) KEY_READ(name, 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) \
39 #define KEY_CONF_READ(name, buflen, format_string) \
40 KEY_READ(conf_##name, conf.name, buflen, format_string)
41 #define KEY_CONF_READ_D(name) KEY_CONF_READ(name, 20, "%d\n")
42 #define KEY_CONF_READ_X(name) KEY_CONF_READ(name, 20, "0x%x\n")
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, \
50 #define KEY_CONF_FILE(name, format) \
51 KEY_CONF_READ_##format(name) \
54 KEY_CONF_FILE(keylen, D);
55 KEY_CONF_FILE(keyidx, D);
56 KEY_CONF_FILE(hw_key_idx, D);
57 KEY_CONF_FILE(flags, X);
58 KEY_FILE(tx_rx_count, D);
60 static ssize_t key_algorithm_read(struct file *file,
62 size_t count, loff_t *ppos)
65 struct ieee80211_key *key = file->private_data;
67 switch (key->conf.alg) {
80 return simple_read_from_buffer(userbuf, count, ppos, alg, strlen(alg));
84 static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
85 size_t count, loff_t *ppos)
90 struct ieee80211_key *key = file->private_data;
92 switch (key->conf.alg) {
94 len = scnprintf(buf, sizeof(buf), "\n");
97 len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
102 tpn = key->u.ccmp.tx_pn;
103 len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
104 tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
109 return simple_read_from_buffer(userbuf, count, ppos, buf, len);
113 static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
114 size_t count, loff_t *ppos)
116 struct ieee80211_key *key = file->private_data;
117 char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf;
121 switch (key->conf.alg) {
123 len = scnprintf(buf, sizeof(buf), "\n");
126 for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
127 p += scnprintf(p, sizeof(buf)+buf-p,
129 key->u.tkip.iv32_rx[i],
130 key->u.tkip.iv16_rx[i]);
134 for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
135 rpn = key->u.ccmp.rx_pn[i];
136 p += scnprintf(p, sizeof(buf)+buf-p,
137 "%02x%02x%02x%02x%02x%02x\n",
138 rpn[0], rpn[1], rpn[2],
139 rpn[3], rpn[4], rpn[5]);
146 return simple_read_from_buffer(userbuf, count, ppos, buf, len);
150 static ssize_t key_replays_read(struct file *file, char __user *userbuf,
151 size_t count, loff_t *ppos)
153 struct ieee80211_key *key = file->private_data;
157 if (key->conf.alg != ALG_CCMP)
159 len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
160 return simple_read_from_buffer(userbuf, count, ppos, buf, len);
164 static ssize_t key_key_read(struct file *file, char __user *userbuf,
165 size_t count, loff_t *ppos)
167 struct ieee80211_key *key = file->private_data;
168 int i, res, bufsize = 2 * key->conf.keylen + 2;
169 char *buf = kmalloc(bufsize, GFP_KERNEL);
172 for (i = 0; i < key->conf.keylen; i++)
173 p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]);
174 p += scnprintf(p, bufsize+buf-p, "\n");
175 res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
181 #define DEBUGFS_ADD(name) \
182 key->debugfs.name = debugfs_create_file(#name, 0400,\
183 key->debugfs.dir, key, &key_##name##_ops);
185 void ieee80211_debugfs_key_add(struct ieee80211_local *local,
186 struct ieee80211_key *key)
191 if (!local->debugfs.keys)
194 sprintf(buf, "%d", keycount);
196 key->debugfs.dir = debugfs_create_dir(buf,
197 local->debugfs.keys);
199 if (!key->debugfs.dir)
205 DEBUGFS_ADD(hw_key_idx);
206 DEBUGFS_ADD(tx_rx_count);
207 DEBUGFS_ADD(algorithm);
208 DEBUGFS_ADD(tx_spec);
209 DEBUGFS_ADD(rx_spec);
210 DEBUGFS_ADD(replays);
214 #define DEBUGFS_DEL(name) \
215 debugfs_remove(key->debugfs.name); key->debugfs.name = NULL;
217 void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
225 DEBUGFS_DEL(hw_key_idx);
226 DEBUGFS_DEL(tx_rx_count);
227 DEBUGFS_DEL(algorithm);
228 DEBUGFS_DEL(tx_spec);
229 DEBUGFS_DEL(rx_spec);
230 DEBUGFS_DEL(replays);
233 debugfs_remove(key->debugfs.stalink);
234 key->debugfs.stalink = NULL;
235 debugfs_remove(key->debugfs.dir);
236 key->debugfs.dir = NULL;
238 void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
242 if (!sdata->debugfsdir)
245 sprintf(buf, "../keys/%d", sdata->default_key->conf.keyidx);
246 sdata->debugfs.default_key =
247 debugfs_create_symlink("default_key", sdata->debugfsdir, buf);
249 void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
254 debugfs_remove(sdata->debugfs.default_key);
255 sdata->debugfs.default_key = NULL;
257 void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
258 struct sta_info *sta)
262 if (!key->debugfs.dir)
265 sprintf(buf, "../../stations/" MAC_FMT, MAC_ARG(sta->addr));
266 key->debugfs.stalink =
267 debugfs_create_symlink("station", key->debugfs.dir, buf);
270 void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
271 struct sta_info *sta)
273 debugfs_remove(key->debugfs.stalink);
274 key->debugfs.stalink = NULL;