blob: b8a7414c35716ade771f2a18ff2b8e8ffe9ead23 [file] [log] [blame]
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +00001/*
Sven Eckelmann64afe352011-01-27 10:38:15 +01002 * Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +00003 *
4 * Marek Lindner
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of version 2 of the GNU General Public
8 * License as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18 * 02110-1301, USA
19 *
20 */
21
22#include "main.h"
23#include "bat_sysfs.h"
24#include "translation-table.h"
25#include "originator.h"
26#include "hard-interface.h"
27#include "gateway_common.h"
28#include "gateway_client.h"
29#include "vis.h"
30
Sven Eckelmann3d222bb2011-06-05 10:20:19 +020031static struct net_device *kobj_to_netdev(struct kobject *obj)
32{
33 struct device *dev = container_of(obj->parent, struct device, kobj);
34 return to_net_dev(dev);
35}
36
37static struct bat_priv *kobj_to_batpriv(struct kobject *obj)
38{
39 struct net_device *net_dev = kobj_to_netdev(obj);
40 return netdev_priv(net_dev);
41}
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +000042
Antonio Quartullic6bda682011-04-26 18:26:01 +020043#define UEV_TYPE_VAR "BATTYPE="
44#define UEV_ACTION_VAR "BATACTION="
45#define UEV_DATA_VAR "BATDATA="
46
47static char *uev_action_str[] = {
48 "add",
49 "del",
50 "change"
51};
52
53static char *uev_type_str[] = {
54 "gw"
55};
56
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +000057/* Use this, if you have customized show and store functions */
58#define BAT_ATTR(_name, _mode, _show, _store) \
59struct bat_attribute bat_attr_##_name = { \
60 .attr = {.name = __stringify(_name), \
61 .mode = _mode }, \
62 .show = _show, \
63 .store = _store, \
64};
65
66#define BAT_ATTR_STORE_BOOL(_name, _post_func) \
67ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \
68 char *buff, size_t count) \
69{ \
70 struct net_device *net_dev = kobj_to_netdev(kobj); \
71 struct bat_priv *bat_priv = netdev_priv(net_dev); \
72 return __store_bool_attr(buff, count, _post_func, attr, \
73 &bat_priv->_name, net_dev); \
74}
75
76#define BAT_ATTR_SHOW_BOOL(_name) \
77ssize_t show_##_name(struct kobject *kobj, struct attribute *attr, \
78 char *buff) \
79{ \
80 struct bat_priv *bat_priv = kobj_to_batpriv(kobj); \
81 return sprintf(buff, "%s\n", \
82 atomic_read(&bat_priv->_name) == 0 ? \
83 "disabled" : "enabled"); \
84} \
85
86/* Use this, if you are going to turn a [name] in bat_priv on or off */
87#define BAT_ATTR_BOOL(_name, _mode, _post_func) \
88 static BAT_ATTR_STORE_BOOL(_name, _post_func) \
89 static BAT_ATTR_SHOW_BOOL(_name) \
90 static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
91
92
93#define BAT_ATTR_STORE_UINT(_name, _min, _max, _post_func) \
94ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \
95 char *buff, size_t count) \
96{ \
97 struct net_device *net_dev = kobj_to_netdev(kobj); \
98 struct bat_priv *bat_priv = netdev_priv(net_dev); \
99 return __store_uint_attr(buff, count, _min, _max, _post_func, \
100 attr, &bat_priv->_name, net_dev); \
101}
102
103#define BAT_ATTR_SHOW_UINT(_name) \
104ssize_t show_##_name(struct kobject *kobj, struct attribute *attr, \
105 char *buff) \
106{ \
107 struct bat_priv *bat_priv = kobj_to_batpriv(kobj); \
108 return sprintf(buff, "%i\n", atomic_read(&bat_priv->_name)); \
109} \
110
111/* Use this, if you are going to set [name] in bat_priv to unsigned integer
112 * values only */
113#define BAT_ATTR_UINT(_name, _mode, _min, _max, _post_func) \
114 static BAT_ATTR_STORE_UINT(_name, _min, _max, _post_func) \
115 static BAT_ATTR_SHOW_UINT(_name) \
116 static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
117
118
119static int store_bool_attr(char *buff, size_t count,
120 struct net_device *net_dev,
Sven Eckelmann747e4222011-05-14 23:14:50 +0200121 const char *attr_name, atomic_t *attr)
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000122{
123 int enabled = -1;
124
125 if (buff[count - 1] == '\n')
126 buff[count - 1] = '\0';
127
128 if ((strncmp(buff, "1", 2) == 0) ||
129 (strncmp(buff, "enable", 7) == 0) ||
130 (strncmp(buff, "enabled", 8) == 0))
131 enabled = 1;
132
133 if ((strncmp(buff, "0", 2) == 0) ||
134 (strncmp(buff, "disable", 8) == 0) ||
135 (strncmp(buff, "disabled", 9) == 0))
136 enabled = 0;
137
138 if (enabled < 0) {
139 bat_info(net_dev,
140 "%s: Invalid parameter received: %s\n",
141 attr_name, buff);
142 return -EINVAL;
143 }
144
145 if (atomic_read(attr) == enabled)
146 return count;
147
148 bat_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name,
149 atomic_read(attr) == 1 ? "enabled" : "disabled",
150 enabled == 1 ? "enabled" : "disabled");
151
152 atomic_set(attr, (unsigned)enabled);
153 return count;
154}
155
156static inline ssize_t __store_bool_attr(char *buff, size_t count,
157 void (*post_func)(struct net_device *),
158 struct attribute *attr,
159 atomic_t *attr_store, struct net_device *net_dev)
160{
161 int ret;
162
Sven Eckelmann747e4222011-05-14 23:14:50 +0200163 ret = store_bool_attr(buff, count, net_dev, attr->name, attr_store);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000164 if (post_func && ret)
165 post_func(net_dev);
166
167 return ret;
168}
169
Sven Eckelmann747e4222011-05-14 23:14:50 +0200170static int store_uint_attr(const char *buff, size_t count,
171 struct net_device *net_dev, const char *attr_name,
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000172 unsigned int min, unsigned int max, atomic_t *attr)
173{
174 unsigned long uint_val;
175 int ret;
176
177 ret = strict_strtoul(buff, 10, &uint_val);
178 if (ret) {
179 bat_info(net_dev,
180 "%s: Invalid parameter received: %s\n",
181 attr_name, buff);
182 return -EINVAL;
183 }
184
185 if (uint_val < min) {
186 bat_info(net_dev, "%s: Value is too small: %lu min: %u\n",
187 attr_name, uint_val, min);
188 return -EINVAL;
189 }
190
191 if (uint_val > max) {
192 bat_info(net_dev, "%s: Value is too big: %lu max: %u\n",
193 attr_name, uint_val, max);
194 return -EINVAL;
195 }
196
197 if (atomic_read(attr) == uint_val)
198 return count;
199
200 bat_info(net_dev, "%s: Changing from: %i to: %lu\n",
201 attr_name, atomic_read(attr), uint_val);
202
203 atomic_set(attr, uint_val);
204 return count;
205}
206
Sven Eckelmann747e4222011-05-14 23:14:50 +0200207static inline ssize_t __store_uint_attr(const char *buff, size_t count,
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000208 int min, int max,
209 void (*post_func)(struct net_device *),
Sven Eckelmann747e4222011-05-14 23:14:50 +0200210 const struct attribute *attr,
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000211 atomic_t *attr_store, struct net_device *net_dev)
212{
213 int ret;
214
Sven Eckelmann747e4222011-05-14 23:14:50 +0200215 ret = store_uint_attr(buff, count, net_dev, attr->name,
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000216 min, max, attr_store);
217 if (post_func && ret)
218 post_func(net_dev);
219
220 return ret;
221}
222
223static ssize_t show_vis_mode(struct kobject *kobj, struct attribute *attr,
224 char *buff)
225{
226 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
227 int vis_mode = atomic_read(&bat_priv->vis_mode);
228
229 return sprintf(buff, "%s\n",
230 vis_mode == VIS_TYPE_CLIENT_UPDATE ?
231 "client" : "server");
232}
233
234static ssize_t store_vis_mode(struct kobject *kobj, struct attribute *attr,
235 char *buff, size_t count)
236{
237 struct net_device *net_dev = kobj_to_netdev(kobj);
238 struct bat_priv *bat_priv = netdev_priv(net_dev);
239 unsigned long val;
240 int ret, vis_mode_tmp = -1;
241
242 ret = strict_strtoul(buff, 10, &val);
243
244 if (((count == 2) && (!ret) && (val == VIS_TYPE_CLIENT_UPDATE)) ||
245 (strncmp(buff, "client", 6) == 0) ||
246 (strncmp(buff, "off", 3) == 0))
247 vis_mode_tmp = VIS_TYPE_CLIENT_UPDATE;
248
249 if (((count == 2) && (!ret) && (val == VIS_TYPE_SERVER_SYNC)) ||
250 (strncmp(buff, "server", 6) == 0))
251 vis_mode_tmp = VIS_TYPE_SERVER_SYNC;
252
253 if (vis_mode_tmp < 0) {
254 if (buff[count - 1] == '\n')
255 buff[count - 1] = '\0';
256
257 bat_info(net_dev,
258 "Invalid parameter for 'vis mode' setting received: "
259 "%s\n", buff);
260 return -EINVAL;
261 }
262
263 if (atomic_read(&bat_priv->vis_mode) == vis_mode_tmp)
264 return count;
265
266 bat_info(net_dev, "Changing vis mode from: %s to: %s\n",
267 atomic_read(&bat_priv->vis_mode) == VIS_TYPE_CLIENT_UPDATE ?
268 "client" : "server", vis_mode_tmp == VIS_TYPE_CLIENT_UPDATE ?
269 "client" : "server");
270
271 atomic_set(&bat_priv->vis_mode, (unsigned)vis_mode_tmp);
272 return count;
273}
274
275static void post_gw_deselect(struct net_device *net_dev)
276{
277 struct bat_priv *bat_priv = netdev_priv(net_dev);
278 gw_deselect(bat_priv);
279}
280
281static ssize_t show_gw_mode(struct kobject *kobj, struct attribute *attr,
282 char *buff)
283{
284 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
285 int bytes_written;
286
287 switch (atomic_read(&bat_priv->gw_mode)) {
288 case GW_MODE_CLIENT:
289 bytes_written = sprintf(buff, "%s\n", GW_MODE_CLIENT_NAME);
290 break;
291 case GW_MODE_SERVER:
292 bytes_written = sprintf(buff, "%s\n", GW_MODE_SERVER_NAME);
293 break;
294 default:
295 bytes_written = sprintf(buff, "%s\n", GW_MODE_OFF_NAME);
296 break;
297 }
298
299 return bytes_written;
300}
301
302static ssize_t store_gw_mode(struct kobject *kobj, struct attribute *attr,
303 char *buff, size_t count)
304{
305 struct net_device *net_dev = kobj_to_netdev(kobj);
306 struct bat_priv *bat_priv = netdev_priv(net_dev);
307 char *curr_gw_mode_str;
308 int gw_mode_tmp = -1;
309
310 if (buff[count - 1] == '\n')
311 buff[count - 1] = '\0';
312
313 if (strncmp(buff, GW_MODE_OFF_NAME, strlen(GW_MODE_OFF_NAME)) == 0)
314 gw_mode_tmp = GW_MODE_OFF;
315
316 if (strncmp(buff, GW_MODE_CLIENT_NAME,
317 strlen(GW_MODE_CLIENT_NAME)) == 0)
318 gw_mode_tmp = GW_MODE_CLIENT;
319
320 if (strncmp(buff, GW_MODE_SERVER_NAME,
321 strlen(GW_MODE_SERVER_NAME)) == 0)
322 gw_mode_tmp = GW_MODE_SERVER;
323
324 if (gw_mode_tmp < 0) {
325 bat_info(net_dev,
326 "Invalid parameter for 'gw mode' setting received: "
327 "%s\n", buff);
328 return -EINVAL;
329 }
330
331 if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp)
332 return count;
333
334 switch (atomic_read(&bat_priv->gw_mode)) {
335 case GW_MODE_CLIENT:
336 curr_gw_mode_str = GW_MODE_CLIENT_NAME;
337 break;
338 case GW_MODE_SERVER:
339 curr_gw_mode_str = GW_MODE_SERVER_NAME;
340 break;
341 default:
342 curr_gw_mode_str = GW_MODE_OFF_NAME;
343 break;
344 }
345
346 bat_info(net_dev, "Changing gw mode from: %s to: %s\n",
347 curr_gw_mode_str, buff);
348
349 gw_deselect(bat_priv);
350 atomic_set(&bat_priv->gw_mode, (unsigned)gw_mode_tmp);
351 return count;
352}
353
354static ssize_t show_gw_bwidth(struct kobject *kobj, struct attribute *attr,
355 char *buff)
356{
357 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
358 int down, up;
359 int gw_bandwidth = atomic_read(&bat_priv->gw_bandwidth);
360
361 gw_bandwidth_to_kbit(gw_bandwidth, &down, &up);
362 return sprintf(buff, "%i%s/%i%s\n",
363 (down > 2048 ? down / 1024 : down),
364 (down > 2048 ? "MBit" : "KBit"),
365 (up > 2048 ? up / 1024 : up),
366 (up > 2048 ? "MBit" : "KBit"));
367}
368
369static ssize_t store_gw_bwidth(struct kobject *kobj, struct attribute *attr,
370 char *buff, size_t count)
371{
372 struct net_device *net_dev = kobj_to_netdev(kobj);
373
374 if (buff[count - 1] == '\n')
375 buff[count - 1] = '\0';
376
377 return gw_bandwidth_set(net_dev, buff, count);
378}
379
380BAT_ATTR_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL);
381BAT_ATTR_BOOL(bonding, S_IRUGO | S_IWUSR, NULL);
382BAT_ATTR_BOOL(fragmentation, S_IRUGO | S_IWUSR, update_min_mtu);
Antonio Quartulli59b699c2011-07-07 15:35:36 +0200383BAT_ATTR_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000384static BAT_ATTR(vis_mode, S_IRUGO | S_IWUSR, show_vis_mode, store_vis_mode);
385static BAT_ATTR(gw_mode, S_IRUGO | S_IWUSR, show_gw_mode, store_gw_mode);
386BAT_ATTR_UINT(orig_interval, S_IRUGO | S_IWUSR, 2 * JITTER, INT_MAX, NULL);
387BAT_ATTR_UINT(hop_penalty, S_IRUGO | S_IWUSR, 0, TQ_MAX_VALUE, NULL);
388BAT_ATTR_UINT(gw_sel_class, S_IRUGO | S_IWUSR, 1, TQ_MAX_VALUE,
389 post_gw_deselect);
390static BAT_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, show_gw_bwidth,
391 store_gw_bwidth);
392#ifdef CONFIG_BATMAN_ADV_DEBUG
Antonio Quartullia73105b2011-04-27 14:27:44 +0200393BAT_ATTR_UINT(log_level, S_IRUGO | S_IWUSR, 0, 7, NULL);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000394#endif
395
396static struct bat_attribute *mesh_attrs[] = {
397 &bat_attr_aggregated_ogms,
398 &bat_attr_bonding,
399 &bat_attr_fragmentation,
Antonio Quartulli59b699c2011-07-07 15:35:36 +0200400 &bat_attr_ap_isolation,
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000401 &bat_attr_vis_mode,
402 &bat_attr_gw_mode,
403 &bat_attr_orig_interval,
404 &bat_attr_hop_penalty,
405 &bat_attr_gw_sel_class,
406 &bat_attr_gw_bandwidth,
407#ifdef CONFIG_BATMAN_ADV_DEBUG
408 &bat_attr_log_level,
409#endif
410 NULL,
411};
412
413int sysfs_add_meshif(struct net_device *dev)
414{
415 struct kobject *batif_kobject = &dev->dev.kobj;
416 struct bat_priv *bat_priv = netdev_priv(dev);
417 struct bat_attribute **bat_attr;
418 int err;
419
420 bat_priv->mesh_obj = kobject_create_and_add(SYSFS_IF_MESH_SUBDIR,
421 batif_kobject);
422 if (!bat_priv->mesh_obj) {
423 bat_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
424 SYSFS_IF_MESH_SUBDIR);
425 goto out;
426 }
427
428 for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr) {
429 err = sysfs_create_file(bat_priv->mesh_obj,
430 &((*bat_attr)->attr));
431 if (err) {
432 bat_err(dev, "Can't add sysfs file: %s/%s/%s\n",
433 dev->name, SYSFS_IF_MESH_SUBDIR,
434 ((*bat_attr)->attr).name);
435 goto rem_attr;
436 }
437 }
438
439 return 0;
440
441rem_attr:
442 for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
443 sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
444
445 kobject_put(bat_priv->mesh_obj);
446 bat_priv->mesh_obj = NULL;
447out:
448 return -ENOMEM;
449}
450
451void sysfs_del_meshif(struct net_device *dev)
452{
453 struct bat_priv *bat_priv = netdev_priv(dev);
454 struct bat_attribute **bat_attr;
455
456 for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
457 sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
458
459 kobject_put(bat_priv->mesh_obj);
460 bat_priv->mesh_obj = NULL;
461}
462
463static ssize_t show_mesh_iface(struct kobject *kobj, struct attribute *attr,
464 char *buff)
465{
466 struct net_device *net_dev = kobj_to_netdev(kobj);
Marek Lindnere6c10f42011-02-18 12:33:20 +0000467 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000468 ssize_t length;
469
Marek Lindnere6c10f42011-02-18 12:33:20 +0000470 if (!hard_iface)
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000471 return 0;
472
Marek Lindnere6c10f42011-02-18 12:33:20 +0000473 length = sprintf(buff, "%s\n", hard_iface->if_status == IF_NOT_IN_USE ?
474 "none" : hard_iface->soft_iface->name);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000475
Marek Lindnere6c10f42011-02-18 12:33:20 +0000476 hardif_free_ref(hard_iface);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000477
478 return length;
479}
480
481static ssize_t store_mesh_iface(struct kobject *kobj, struct attribute *attr,
482 char *buff, size_t count)
483{
484 struct net_device *net_dev = kobj_to_netdev(kobj);
Marek Lindnere6c10f42011-02-18 12:33:20 +0000485 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000486 int status_tmp = -1;
Marek Lindnered75ccb2011-02-10 14:33:51 +0000487 int ret = count;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000488
Marek Lindnere6c10f42011-02-18 12:33:20 +0000489 if (!hard_iface)
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000490 return count;
491
492 if (buff[count - 1] == '\n')
493 buff[count - 1] = '\0';
494
495 if (strlen(buff) >= IFNAMSIZ) {
496 pr_err("Invalid parameter for 'mesh_iface' setting received: "
497 "interface name too long '%s'\n", buff);
Marek Lindnere6c10f42011-02-18 12:33:20 +0000498 hardif_free_ref(hard_iface);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000499 return -EINVAL;
500 }
501
502 if (strncmp(buff, "none", 4) == 0)
503 status_tmp = IF_NOT_IN_USE;
504 else
505 status_tmp = IF_I_WANT_YOU;
506
Marek Lindnere6c10f42011-02-18 12:33:20 +0000507 if (hard_iface->if_status == status_tmp)
508 goto out;
509
510 if ((hard_iface->soft_iface) &&
511 (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0))
Marek Lindnered75ccb2011-02-10 14:33:51 +0000512 goto out;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000513
Sven Eckelmann3a4375a2011-05-03 13:10:06 +0200514 if (!rtnl_trylock()) {
515 ret = -ERESTARTSYS;
Marek Lindnered75ccb2011-02-10 14:33:51 +0000516 goto out;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000517 }
518
Sven Eckelmann3a4375a2011-05-03 13:10:06 +0200519 if (status_tmp == IF_NOT_IN_USE) {
Marek Lindnere6c10f42011-02-18 12:33:20 +0000520 hardif_disable_interface(hard_iface);
Sven Eckelmann3a4375a2011-05-03 13:10:06 +0200521 goto unlock;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000522 }
523
Sven Eckelmann3a4375a2011-05-03 13:10:06 +0200524 /* if the interface already is in use */
525 if (hard_iface->if_status != IF_NOT_IN_USE)
526 hardif_disable_interface(hard_iface);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000527
Sven Eckelmann3a4375a2011-05-03 13:10:06 +0200528 ret = hardif_enable_interface(hard_iface, buff);
529
530unlock:
531 rtnl_unlock();
Marek Lindnered75ccb2011-02-10 14:33:51 +0000532out:
Marek Lindnere6c10f42011-02-18 12:33:20 +0000533 hardif_free_ref(hard_iface);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000534 return ret;
535}
536
537static ssize_t show_iface_status(struct kobject *kobj, struct attribute *attr,
538 char *buff)
539{
540 struct net_device *net_dev = kobj_to_netdev(kobj);
Marek Lindnere6c10f42011-02-18 12:33:20 +0000541 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000542 ssize_t length;
543
Marek Lindnere6c10f42011-02-18 12:33:20 +0000544 if (!hard_iface)
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000545 return 0;
546
Marek Lindnere6c10f42011-02-18 12:33:20 +0000547 switch (hard_iface->if_status) {
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000548 case IF_TO_BE_REMOVED:
549 length = sprintf(buff, "disabling\n");
550 break;
551 case IF_INACTIVE:
552 length = sprintf(buff, "inactive\n");
553 break;
554 case IF_ACTIVE:
555 length = sprintf(buff, "active\n");
556 break;
557 case IF_TO_BE_ACTIVATED:
558 length = sprintf(buff, "enabling\n");
559 break;
560 case IF_NOT_IN_USE:
561 default:
562 length = sprintf(buff, "not in use\n");
563 break;
564 }
565
Marek Lindnere6c10f42011-02-18 12:33:20 +0000566 hardif_free_ref(hard_iface);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000567
568 return length;
569}
570
571static BAT_ATTR(mesh_iface, S_IRUGO | S_IWUSR,
572 show_mesh_iface, store_mesh_iface);
573static BAT_ATTR(iface_status, S_IRUGO, show_iface_status, NULL);
574
575static struct bat_attribute *batman_attrs[] = {
576 &bat_attr_mesh_iface,
577 &bat_attr_iface_status,
578 NULL,
579};
580
581int sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev)
582{
583 struct kobject *hardif_kobject = &dev->dev.kobj;
584 struct bat_attribute **bat_attr;
585 int err;
586
587 *hardif_obj = kobject_create_and_add(SYSFS_IF_BAT_SUBDIR,
588 hardif_kobject);
589
590 if (!*hardif_obj) {
591 bat_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
592 SYSFS_IF_BAT_SUBDIR);
593 goto out;
594 }
595
596 for (bat_attr = batman_attrs; *bat_attr; ++bat_attr) {
597 err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr));
598 if (err) {
599 bat_err(dev, "Can't add sysfs file: %s/%s/%s\n",
600 dev->name, SYSFS_IF_BAT_SUBDIR,
601 ((*bat_attr)->attr).name);
602 goto rem_attr;
603 }
604 }
605
606 return 0;
607
608rem_attr:
609 for (bat_attr = batman_attrs; *bat_attr; ++bat_attr)
610 sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr));
611out:
612 return -ENOMEM;
613}
614
615void sysfs_del_hardif(struct kobject **hardif_obj)
616{
617 kobject_put(*hardif_obj);
618 *hardif_obj = NULL;
619}
Antonio Quartullic6bda682011-04-26 18:26:01 +0200620
621int throw_uevent(struct bat_priv *bat_priv, enum uev_type type,
622 enum uev_action action, const char *data)
623{
624 int ret = -1;
625 struct hard_iface *primary_if = NULL;
626 struct kobject *bat_kobj;
627 char *uevent_env[4] = { NULL, NULL, NULL, NULL };
628
629 primary_if = primary_if_get_selected(bat_priv);
630 if (!primary_if)
631 goto out;
632
633 bat_kobj = &primary_if->soft_iface->dev.kobj;
634
635 uevent_env[0] = kmalloc(strlen(UEV_TYPE_VAR) +
636 strlen(uev_type_str[type]) + 1,
637 GFP_ATOMIC);
638 if (!uevent_env[0])
639 goto out;
640
641 sprintf(uevent_env[0], "%s%s", UEV_TYPE_VAR, uev_type_str[type]);
642
643 uevent_env[1] = kmalloc(strlen(UEV_ACTION_VAR) +
644 strlen(uev_action_str[action]) + 1,
645 GFP_ATOMIC);
646 if (!uevent_env[1])
647 goto out;
648
649 sprintf(uevent_env[1], "%s%s", UEV_ACTION_VAR, uev_action_str[action]);
650
651 /* If the event is DEL, ignore the data field */
652 if (action != UEV_DEL) {
653 uevent_env[2] = kmalloc(strlen(UEV_DATA_VAR) +
654 strlen(data) + 1, GFP_ATOMIC);
655 if (!uevent_env[2])
656 goto out;
657
658 sprintf(uevent_env[2], "%s%s", UEV_DATA_VAR, data);
659 }
660
661 ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env);
662out:
663 kfree(uevent_env[0]);
664 kfree(uevent_env[1]);
665 kfree(uevent_env[2]);
666
667 if (primary_if)
668 hardif_free_ref(primary_if);
669
670 if (ret)
671 bat_dbg(DBG_BATMAN, bat_priv, "Impossible to send "
672 "uevent for (%s,%s,%s) event (err: %d)\n",
673 uev_type_str[type], uev_action_str[action],
674 (action == UEV_DEL ? "NULL" : data), ret);
675 return ret;
676}