Commit | Line | Data |
---|---|---|
0046b040 | 1 | /* Copyright (C) 2010-2016 B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
2 | * |
3 | * Marek Lindner | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of version 2 of the GNU General Public | |
7 | * License as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
ebf38fb7 | 15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
c6c8fea2 SE |
16 | */ |
17 | ||
b706b13b | 18 | #include "sysfs.h" |
1e2c2a4f SE |
19 | #include "main.h" |
20 | ||
21 | #include <linux/atomic.h> | |
22 | #include <linux/compiler.h> | |
23 | #include <linux/device.h> | |
24 | #include <linux/errno.h> | |
25 | #include <linux/fs.h> | |
26 | #include <linux/if.h> | |
27 | #include <linux/if_vlan.h> | |
6be4d30c | 28 | #include <linux/kref.h> |
1e2c2a4f SE |
29 | #include <linux/kernel.h> |
30 | #include <linux/netdevice.h> | |
31 | #include <linux/printk.h> | |
32 | #include <linux/rculist.h> | |
33 | #include <linux/rcupdate.h> | |
34 | #include <linux/rtnetlink.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/stat.h> | |
37 | #include <linux/stddef.h> | |
38 | #include <linux/string.h> | |
39 | #include <linux/stringify.h> | |
40 | ||
33af49ad | 41 | #include "distributed-arp-table.h" |
1e2c2a4f SE |
42 | #include "gateway_client.h" |
43 | #include "gateway_common.h" | |
d68081a2 | 44 | #include "bridge_loop_avoidance.h" |
c6c8fea2 | 45 | #include "hard-interface.h" |
1e2c2a4f SE |
46 | #include "network-coding.h" |
47 | #include "packet.h" | |
90f4435d | 48 | #include "soft-interface.h" |
c6c8fea2 | 49 | |
0ff9b86f | 50 | static struct net_device *batadv_kobj_to_netdev(struct kobject *obj) |
3d222bba SE |
51 | { |
52 | struct device *dev = container_of(obj->parent, struct device, kobj); | |
f138694b | 53 | |
3d222bba SE |
54 | return to_net_dev(dev); |
55 | } | |
56 | ||
56303d34 | 57 | static struct batadv_priv *batadv_kobj_to_batpriv(struct kobject *obj) |
3d222bba | 58 | { |
0ff9b86f | 59 | struct net_device *net_dev = batadv_kobj_to_netdev(obj); |
f138694b | 60 | |
3d222bba SE |
61 | return netdev_priv(net_dev); |
62 | } | |
c6c8fea2 | 63 | |
90f4435d AQ |
64 | /** |
65 | * batadv_vlan_kobj_to_batpriv - convert a vlan kobj in the associated batpriv | |
66 | * @obj: kobject to covert | |
67 | * | |
62fe710f | 68 | * Return: the associated batadv_priv struct. |
90f4435d AQ |
69 | */ |
70 | static struct batadv_priv *batadv_vlan_kobj_to_batpriv(struct kobject *obj) | |
71 | { | |
72 | /* VLAN specific attributes are located in the root sysfs folder if they | |
73 | * refer to the untagged VLAN.. | |
74 | */ | |
75 | if (!strcmp(BATADV_SYSFS_IF_MESH_SUBDIR, obj->name)) | |
76 | return batadv_kobj_to_batpriv(obj); | |
77 | ||
78 | /* ..while the attributes for the tagged vlans are located in | |
79 | * the in the corresponding "vlan%VID" subfolder | |
80 | */ | |
81 | return batadv_kobj_to_batpriv(obj->parent); | |
82 | } | |
83 | ||
84 | /** | |
85 | * batadv_kobj_to_vlan - convert a kobj in the associated softif_vlan struct | |
7afcbbef | 86 | * @bat_priv: the bat priv with all the soft interface information |
90f4435d AQ |
87 | * @obj: kobject to covert |
88 | * | |
62fe710f | 89 | * Return: the associated softif_vlan struct if found, NULL otherwise. |
90f4435d AQ |
90 | */ |
91 | static struct batadv_softif_vlan * | |
92 | batadv_kobj_to_vlan(struct batadv_priv *bat_priv, struct kobject *obj) | |
93 | { | |
94 | struct batadv_softif_vlan *vlan_tmp, *vlan = NULL; | |
95 | ||
96 | rcu_read_lock(); | |
97 | hlist_for_each_entry_rcu(vlan_tmp, &bat_priv->softif_vlan_list, list) { | |
98 | if (vlan_tmp->kobj != obj) | |
99 | continue; | |
100 | ||
6be4d30c | 101 | if (!kref_get_unless_zero(&vlan_tmp->refcount)) |
90f4435d AQ |
102 | continue; |
103 | ||
104 | vlan = vlan_tmp; | |
105 | break; | |
106 | } | |
107 | rcu_read_unlock(); | |
108 | ||
109 | return vlan; | |
110 | } | |
111 | ||
347c80f0 SE |
112 | #define BATADV_UEV_TYPE_VAR "BATTYPE=" |
113 | #define BATADV_UEV_ACTION_VAR "BATACTION=" | |
114 | #define BATADV_UEV_DATA_VAR "BATDATA=" | |
c6bda689 | 115 | |
0ff9b86f | 116 | static char *batadv_uev_action_str[] = { |
c6bda689 AQ |
117 | "add", |
118 | "del", | |
119 | "change" | |
120 | }; | |
121 | ||
0ff9b86f | 122 | static char *batadv_uev_type_str[] = { |
c6bda689 AQ |
123 | "gw" |
124 | }; | |
125 | ||
90f4435d AQ |
126 | /* Use this, if you have customized show and store functions for vlan attrs */ |
127 | #define BATADV_ATTR_VLAN(_name, _mode, _show, _store) \ | |
128 | struct batadv_attribute batadv_attr_vlan_##_name = { \ | |
129 | .attr = {.name = __stringify(_name), \ | |
130 | .mode = _mode }, \ | |
131 | .show = _show, \ | |
132 | .store = _store, \ | |
2b64df20 | 133 | } |
90f4435d | 134 | |
c6c8fea2 | 135 | /* Use this, if you have customized show and store functions */ |
347c80f0 | 136 | #define BATADV_ATTR(_name, _mode, _show, _store) \ |
b4d66b87 | 137 | struct batadv_attribute batadv_attr_##_name = { \ |
347c80f0 SE |
138 | .attr = {.name = __stringify(_name), \ |
139 | .mode = _mode }, \ | |
140 | .show = _show, \ | |
141 | .store = _store, \ | |
2b64df20 | 142 | } |
c6c8fea2 | 143 | |
347c80f0 | 144 | #define BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ |
0ff9b86f SE |
145 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
146 | struct attribute *attr, char *buff, \ | |
147 | size_t count) \ | |
c6c8fea2 | 148 | { \ |
0ff9b86f | 149 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 150 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
f138694b | 151 | \ |
0ff9b86f SE |
152 | return __batadv_store_bool_attr(buff, count, _post_func, attr, \ |
153 | &bat_priv->_name, net_dev); \ | |
c6c8fea2 SE |
154 | } |
155 | ||
347c80f0 | 156 | #define BATADV_ATTR_SIF_SHOW_BOOL(_name) \ |
0ff9b86f SE |
157 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
158 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 159 | { \ |
56303d34 | 160 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
f138694b | 161 | \ |
c6c8fea2 SE |
162 | return sprintf(buff, "%s\n", \ |
163 | atomic_read(&bat_priv->_name) == 0 ? \ | |
164 | "disabled" : "enabled"); \ | |
165 | } \ | |
166 | ||
f245c38b | 167 | /* Use this, if you are going to turn a [name] in the soft-interface |
9cfc7bd6 SE |
168 | * (bat_priv) on or off |
169 | */ | |
347c80f0 SE |
170 | #define BATADV_ATTR_SIF_BOOL(_name, _mode, _post_func) \ |
171 | static BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ | |
172 | static BATADV_ATTR_SIF_SHOW_BOOL(_name) \ | |
173 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ | |
174 | batadv_store_##_name) | |
c6c8fea2 | 175 | |
6f70eb75 | 176 | #define BATADV_ATTR_SIF_STORE_UINT(_name, _var, _min, _max, _post_func) \ |
0ff9b86f SE |
177 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
178 | struct attribute *attr, char *buff, \ | |
179 | size_t count) \ | |
c6c8fea2 | 180 | { \ |
0ff9b86f | 181 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 182 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
f138694b | 183 | \ |
0ff9b86f SE |
184 | return __batadv_store_uint_attr(buff, count, _min, _max, \ |
185 | _post_func, attr, \ | |
6f70eb75 | 186 | &bat_priv->_var, net_dev); \ |
c6c8fea2 SE |
187 | } |
188 | ||
6f70eb75 | 189 | #define BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \ |
0ff9b86f SE |
190 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
191 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 192 | { \ |
56303d34 | 193 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
f138694b | 194 | \ |
6f70eb75 | 195 | return sprintf(buff, "%i\n", atomic_read(&bat_priv->_var)); \ |
c6c8fea2 SE |
196 | } \ |
197 | ||
f245c38b | 198 | /* Use this, if you are going to set [name] in the soft-interface |
9cfc7bd6 SE |
199 | * (bat_priv) to an unsigned integer value |
200 | */ | |
6f70eb75 AQ |
201 | #define BATADV_ATTR_SIF_UINT(_name, _var, _mode, _min, _max, _post_func)\ |
202 | static BATADV_ATTR_SIF_STORE_UINT(_name, _var, _min, _max, _post_func)\ | |
203 | static BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \ | |
347c80f0 SE |
204 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ |
205 | batadv_store_##_name) | |
c6c8fea2 | 206 | |
90f4435d AQ |
207 | #define BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ |
208 | ssize_t batadv_store_vlan_##_name(struct kobject *kobj, \ | |
209 | struct attribute *attr, char *buff, \ | |
210 | size_t count) \ | |
211 | { \ | |
212 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
213 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
214 | kobj); \ | |
215 | size_t res = __batadv_store_bool_attr(buff, count, _post_func, \ | |
216 | attr, &vlan->_name, \ | |
217 | bat_priv->soft_iface); \ | |
f138694b | 218 | \ |
90f4435d AQ |
219 | batadv_softif_vlan_free_ref(vlan); \ |
220 | return res; \ | |
221 | } | |
222 | ||
223 | #define BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
224 | ssize_t batadv_show_vlan_##_name(struct kobject *kobj, \ | |
225 | struct attribute *attr, char *buff) \ | |
226 | { \ | |
227 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
228 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
229 | kobj); \ | |
230 | size_t res = sprintf(buff, "%s\n", \ | |
231 | atomic_read(&vlan->_name) == 0 ? \ | |
232 | "disabled" : "enabled"); \ | |
f138694b | 233 | \ |
90f4435d AQ |
234 | batadv_softif_vlan_free_ref(vlan); \ |
235 | return res; \ | |
236 | } | |
237 | ||
238 | /* Use this, if you are going to turn a [name] in the vlan struct on or off */ | |
239 | #define BATADV_ATTR_VLAN_BOOL(_name, _mode, _post_func) \ | |
240 | static BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ | |
241 | static BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
242 | static BATADV_ATTR_VLAN(_name, _mode, batadv_show_vlan_##_name, \ | |
243 | batadv_store_vlan_##_name) | |
c6c8fea2 | 244 | |
0ff9b86f SE |
245 | static int batadv_store_bool_attr(char *buff, size_t count, |
246 | struct net_device *net_dev, | |
9e728e84 SW |
247 | const char *attr_name, atomic_t *attr, |
248 | bool *changed) | |
c6c8fea2 SE |
249 | { |
250 | int enabled = -1; | |
251 | ||
9e728e84 SW |
252 | *changed = false; |
253 | ||
c6c8fea2 SE |
254 | if (buff[count - 1] == '\n') |
255 | buff[count - 1] = '\0'; | |
256 | ||
257 | if ((strncmp(buff, "1", 2) == 0) || | |
258 | (strncmp(buff, "enable", 7) == 0) || | |
259 | (strncmp(buff, "enabled", 8) == 0)) | |
260 | enabled = 1; | |
261 | ||
262 | if ((strncmp(buff, "0", 2) == 0) || | |
263 | (strncmp(buff, "disable", 8) == 0) || | |
264 | (strncmp(buff, "disabled", 9) == 0)) | |
265 | enabled = 0; | |
266 | ||
267 | if (enabled < 0) { | |
3e34819e SE |
268 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
269 | attr_name, buff); | |
c6c8fea2 SE |
270 | return -EINVAL; |
271 | } | |
272 | ||
273 | if (atomic_read(attr) == enabled) | |
274 | return count; | |
275 | ||
3e34819e SE |
276 | batadv_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name, |
277 | atomic_read(attr) == 1 ? "enabled" : "disabled", | |
278 | enabled == 1 ? "enabled" : "disabled"); | |
c6c8fea2 | 279 | |
9e728e84 SW |
280 | *changed = true; |
281 | ||
95c96174 | 282 | atomic_set(attr, (unsigned int)enabled); |
c6c8fea2 SE |
283 | return count; |
284 | } | |
285 | ||
0ff9b86f SE |
286 | static inline ssize_t |
287 | __batadv_store_bool_attr(char *buff, size_t count, | |
288 | void (*post_func)(struct net_device *), | |
289 | struct attribute *attr, | |
290 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 | 291 | { |
9e728e84 | 292 | bool changed; |
c6c8fea2 SE |
293 | int ret; |
294 | ||
0ff9b86f | 295 | ret = batadv_store_bool_attr(buff, count, net_dev, attr->name, |
9e728e84 SW |
296 | attr_store, &changed); |
297 | if (post_func && changed) | |
c6c8fea2 SE |
298 | post_func(net_dev); |
299 | ||
300 | return ret; | |
301 | } | |
302 | ||
0ff9b86f SE |
303 | static int batadv_store_uint_attr(const char *buff, size_t count, |
304 | struct net_device *net_dev, | |
305 | const char *attr_name, | |
306 | unsigned int min, unsigned int max, | |
307 | atomic_t *attr) | |
c6c8fea2 SE |
308 | { |
309 | unsigned long uint_val; | |
310 | int ret; | |
311 | ||
25a92b13 | 312 | ret = kstrtoul(buff, 10, &uint_val); |
c6c8fea2 | 313 | if (ret) { |
3e34819e SE |
314 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
315 | attr_name, buff); | |
c6c8fea2 SE |
316 | return -EINVAL; |
317 | } | |
318 | ||
319 | if (uint_val < min) { | |
3e34819e SE |
320 | batadv_info(net_dev, "%s: Value is too small: %lu min: %u\n", |
321 | attr_name, uint_val, min); | |
c6c8fea2 SE |
322 | return -EINVAL; |
323 | } | |
324 | ||
325 | if (uint_val > max) { | |
3e34819e SE |
326 | batadv_info(net_dev, "%s: Value is too big: %lu max: %u\n", |
327 | attr_name, uint_val, max); | |
c6c8fea2 SE |
328 | return -EINVAL; |
329 | } | |
330 | ||
331 | if (atomic_read(attr) == uint_val) | |
332 | return count; | |
333 | ||
3e34819e SE |
334 | batadv_info(net_dev, "%s: Changing from: %i to: %lu\n", |
335 | attr_name, atomic_read(attr), uint_val); | |
c6c8fea2 SE |
336 | |
337 | atomic_set(attr, uint_val); | |
338 | return count; | |
339 | } | |
340 | ||
0ff9b86f SE |
341 | static inline ssize_t |
342 | __batadv_store_uint_attr(const char *buff, size_t count, | |
343 | int min, int max, | |
344 | void (*post_func)(struct net_device *), | |
345 | const struct attribute *attr, | |
346 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 SE |
347 | { |
348 | int ret; | |
349 | ||
0ff9b86f SE |
350 | ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max, |
351 | attr_store); | |
c6c8fea2 SE |
352 | if (post_func && ret) |
353 | post_func(net_dev); | |
354 | ||
355 | return ret; | |
356 | } | |
357 | ||
0ff9b86f SE |
358 | static ssize_t batadv_show_bat_algo(struct kobject *kobj, |
359 | struct attribute *attr, char *buff) | |
ea3d2fd1 | 360 | { |
56303d34 | 361 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
f138694b | 362 | |
ea3d2fd1 ML |
363 | return sprintf(buff, "%s\n", bat_priv->bat_algo_ops->name); |
364 | } | |
365 | ||
4e820e72 | 366 | static void batadv_post_gw_reselect(struct net_device *net_dev) |
c6c8fea2 | 367 | { |
56303d34 | 368 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
f138694b | 369 | |
4e820e72 | 370 | batadv_gw_reselect(bat_priv); |
c6c8fea2 SE |
371 | } |
372 | ||
0ff9b86f SE |
373 | static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr, |
374 | char *buff) | |
c6c8fea2 | 375 | { |
56303d34 | 376 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
c6c8fea2 SE |
377 | int bytes_written; |
378 | ||
379 | switch (atomic_read(&bat_priv->gw_mode)) { | |
cd646ab1 | 380 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 SE |
381 | bytes_written = sprintf(buff, "%s\n", |
382 | BATADV_GW_MODE_CLIENT_NAME); | |
c6c8fea2 | 383 | break; |
cd646ab1 | 384 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 SE |
385 | bytes_written = sprintf(buff, "%s\n", |
386 | BATADV_GW_MODE_SERVER_NAME); | |
c6c8fea2 SE |
387 | break; |
388 | default: | |
97ea4ba1 SE |
389 | bytes_written = sprintf(buff, "%s\n", |
390 | BATADV_GW_MODE_OFF_NAME); | |
c6c8fea2 SE |
391 | break; |
392 | } | |
393 | ||
394 | return bytes_written; | |
395 | } | |
396 | ||
0ff9b86f SE |
397 | static ssize_t batadv_store_gw_mode(struct kobject *kobj, |
398 | struct attribute *attr, char *buff, | |
399 | size_t count) | |
c6c8fea2 | 400 | { |
0ff9b86f | 401 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 402 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
c6c8fea2 SE |
403 | char *curr_gw_mode_str; |
404 | int gw_mode_tmp = -1; | |
405 | ||
406 | if (buff[count - 1] == '\n') | |
407 | buff[count - 1] = '\0'; | |
408 | ||
97ea4ba1 SE |
409 | if (strncmp(buff, BATADV_GW_MODE_OFF_NAME, |
410 | strlen(BATADV_GW_MODE_OFF_NAME)) == 0) | |
cd646ab1 | 411 | gw_mode_tmp = BATADV_GW_MODE_OFF; |
c6c8fea2 | 412 | |
97ea4ba1 SE |
413 | if (strncmp(buff, BATADV_GW_MODE_CLIENT_NAME, |
414 | strlen(BATADV_GW_MODE_CLIENT_NAME)) == 0) | |
cd646ab1 | 415 | gw_mode_tmp = BATADV_GW_MODE_CLIENT; |
c6c8fea2 | 416 | |
97ea4ba1 SE |
417 | if (strncmp(buff, BATADV_GW_MODE_SERVER_NAME, |
418 | strlen(BATADV_GW_MODE_SERVER_NAME)) == 0) | |
cd646ab1 | 419 | gw_mode_tmp = BATADV_GW_MODE_SERVER; |
c6c8fea2 SE |
420 | |
421 | if (gw_mode_tmp < 0) { | |
3e34819e SE |
422 | batadv_info(net_dev, |
423 | "Invalid parameter for 'gw mode' setting received: %s\n", | |
424 | buff); | |
c6c8fea2 SE |
425 | return -EINVAL; |
426 | } | |
427 | ||
428 | if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp) | |
429 | return count; | |
430 | ||
431 | switch (atomic_read(&bat_priv->gw_mode)) { | |
cd646ab1 | 432 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 | 433 | curr_gw_mode_str = BATADV_GW_MODE_CLIENT_NAME; |
c6c8fea2 | 434 | break; |
cd646ab1 | 435 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 | 436 | curr_gw_mode_str = BATADV_GW_MODE_SERVER_NAME; |
c6c8fea2 SE |
437 | break; |
438 | default: | |
97ea4ba1 | 439 | curr_gw_mode_str = BATADV_GW_MODE_OFF_NAME; |
c6c8fea2 SE |
440 | break; |
441 | } | |
442 | ||
3e34819e SE |
443 | batadv_info(net_dev, "Changing gw mode from: %s to: %s\n", |
444 | curr_gw_mode_str, buff); | |
c6c8fea2 | 445 | |
f3163181 AQ |
446 | /* Invoking batadv_gw_reselect() is not enough to really de-select the |
447 | * current GW. It will only instruct the gateway client code to perform | |
448 | * a re-election the next time that this is needed. | |
449 | * | |
450 | * When gw client mode is being switched off the current GW must be | |
451 | * de-selected explicitly otherwise no GW_ADD uevent is thrown on | |
452 | * client mode re-activation. This is operation is performed in | |
453 | * batadv_gw_check_client_stop(). | |
454 | */ | |
4e820e72 | 455 | batadv_gw_reselect(bat_priv); |
c6eaa3f0 AQ |
456 | /* always call batadv_gw_check_client_stop() before changing the gateway |
457 | * state | |
458 | */ | |
459 | batadv_gw_check_client_stop(bat_priv); | |
95c96174 | 460 | atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp); |
414254e3 | 461 | batadv_gw_tvlv_container_update(bat_priv); |
c6c8fea2 SE |
462 | return count; |
463 | } | |
464 | ||
0ff9b86f SE |
465 | static ssize_t batadv_show_gw_bwidth(struct kobject *kobj, |
466 | struct attribute *attr, char *buff) | |
c6c8fea2 | 467 | { |
56303d34 | 468 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
6b5e971a | 469 | u32 down, up; |
414254e3 ML |
470 | |
471 | down = atomic_read(&bat_priv->gw.bandwidth_down); | |
472 | up = atomic_read(&bat_priv->gw.bandwidth_up); | |
473 | ||
474 | return sprintf(buff, "%u.%u/%u.%u MBit\n", down / 10, | |
475 | down % 10, up / 10, up % 10); | |
c6c8fea2 SE |
476 | } |
477 | ||
0ff9b86f SE |
478 | static ssize_t batadv_store_gw_bwidth(struct kobject *kobj, |
479 | struct attribute *attr, char *buff, | |
480 | size_t count) | |
c6c8fea2 | 481 | { |
0ff9b86f | 482 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
c6c8fea2 SE |
483 | |
484 | if (buff[count - 1] == '\n') | |
485 | buff[count - 1] = '\0'; | |
486 | ||
84d5e5e0 | 487 | return batadv_gw_bandwidth_set(net_dev, buff, count); |
c6c8fea2 SE |
488 | } |
489 | ||
c42edfe3 AQ |
490 | /** |
491 | * batadv_show_isolation_mark - print the current isolation mark/mask | |
492 | * @kobj: kobject representing the private mesh sysfs directory | |
493 | * @attr: the batman-adv attribute the user is interacting with | |
494 | * @buff: the buffer that will contain the data to send back to the user | |
495 | * | |
62fe710f | 496 | * Return: the number of bytes written into 'buff' on success or a negative |
c42edfe3 AQ |
497 | * error code in case of failure |
498 | */ | |
499 | static ssize_t batadv_show_isolation_mark(struct kobject *kobj, | |
500 | struct attribute *attr, char *buff) | |
501 | { | |
502 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); | |
503 | ||
504 | return sprintf(buff, "%#.8x/%#.8x\n", bat_priv->isolation_mark, | |
505 | bat_priv->isolation_mark_mask); | |
506 | } | |
507 | ||
508 | /** | |
509 | * batadv_store_isolation_mark - parse and store the isolation mark/mask entered | |
510 | * by the user | |
511 | * @kobj: kobject representing the private mesh sysfs directory | |
512 | * @attr: the batman-adv attribute the user is interacting with | |
513 | * @buff: the buffer containing the user data | |
514 | * @count: number of bytes in the buffer | |
515 | * | |
62fe710f | 516 | * Return: 'count' on success or a negative error code in case of failure |
c42edfe3 AQ |
517 | */ |
518 | static ssize_t batadv_store_isolation_mark(struct kobject *kobj, | |
519 | struct attribute *attr, char *buff, | |
520 | size_t count) | |
521 | { | |
522 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); | |
523 | struct batadv_priv *bat_priv = netdev_priv(net_dev); | |
6b5e971a | 524 | u32 mark, mask; |
c42edfe3 AQ |
525 | char *mask_ptr; |
526 | ||
527 | /* parse the mask if it has been specified, otherwise assume the mask is | |
528 | * the biggest possible | |
529 | */ | |
530 | mask = 0xFFFFFFFF; | |
531 | mask_ptr = strchr(buff, '/'); | |
532 | if (mask_ptr) { | |
533 | *mask_ptr = '\0'; | |
534 | mask_ptr++; | |
535 | ||
536 | /* the mask must be entered in hex base as it is going to be a | |
537 | * bitmask and not a prefix length | |
538 | */ | |
539 | if (kstrtou32(mask_ptr, 16, &mask) < 0) | |
540 | return -EINVAL; | |
541 | } | |
542 | ||
543 | /* the mark can be entered in any base */ | |
544 | if (kstrtou32(buff, 0, &mark) < 0) | |
545 | return -EINVAL; | |
546 | ||
547 | bat_priv->isolation_mark_mask = mask; | |
548 | /* erase bits not covered by the mask */ | |
549 | bat_priv->isolation_mark = mark & bat_priv->isolation_mark_mask; | |
550 | ||
551 | batadv_info(net_dev, | |
552 | "New skb mark for extended isolation: %#.8x/%#.8x\n", | |
553 | bat_priv->isolation_mark, bat_priv->isolation_mark_mask); | |
554 | ||
555 | return count; | |
556 | } | |
557 | ||
347c80f0 SE |
558 | BATADV_ATTR_SIF_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL); |
559 | BATADV_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL); | |
7a5cc242 | 560 | #ifdef CONFIG_BATMAN_ADV_BLA |
d68081a2 SW |
561 | BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, |
562 | batadv_bla_status_update); | |
7a5cc242 | 563 | #endif |
33af49ad | 564 | #ifdef CONFIG_BATMAN_ADV_DAT |
17cf0ea4 ML |
565 | BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, |
566 | batadv_dat_status_update); | |
33af49ad | 567 | #endif |
347c80f0 | 568 | BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu); |
347c80f0 SE |
569 | static BATADV_ATTR(routing_algo, S_IRUGO, batadv_show_bat_algo, NULL); |
570 | static BATADV_ATTR(gw_mode, S_IRUGO | S_IWUSR, batadv_show_gw_mode, | |
571 | batadv_store_gw_mode); | |
6f70eb75 AQ |
572 | BATADV_ATTR_SIF_UINT(orig_interval, orig_interval, S_IRUGO | S_IWUSR, |
573 | 2 * BATADV_JITTER, INT_MAX, NULL); | |
574 | BATADV_ATTR_SIF_UINT(hop_penalty, hop_penalty, S_IRUGO | S_IWUSR, 0, | |
575 | BATADV_TQ_MAX_VALUE, NULL); | |
576 | BATADV_ATTR_SIF_UINT(gw_sel_class, gw_sel_class, S_IRUGO | S_IWUSR, 1, | |
577 | BATADV_TQ_MAX_VALUE, batadv_post_gw_reselect); | |
347c80f0 SE |
578 | static BATADV_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, batadv_show_gw_bwidth, |
579 | batadv_store_gw_bwidth); | |
1d8ab8d3 LL |
580 | #ifdef CONFIG_BATMAN_ADV_MCAST |
581 | BATADV_ATTR_SIF_BOOL(multicast_mode, S_IRUGO | S_IWUSR, NULL); | |
582 | #endif | |
c6c8fea2 | 583 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
6f70eb75 AQ |
584 | BATADV_ATTR_SIF_UINT(log_level, log_level, S_IRUGO | S_IWUSR, 0, |
585 | BATADV_DBG_ALL, NULL); | |
c6c8fea2 | 586 | #endif |
d353d8d4 | 587 | #ifdef CONFIG_BATMAN_ADV_NC |
3f4841ff ML |
588 | BATADV_ATTR_SIF_BOOL(network_coding, S_IRUGO | S_IWUSR, |
589 | batadv_nc_status_update); | |
d353d8d4 | 590 | #endif |
c42edfe3 AQ |
591 | static BATADV_ATTR(isolation_mark, S_IRUGO | S_IWUSR, |
592 | batadv_show_isolation_mark, batadv_store_isolation_mark); | |
c6c8fea2 | 593 | |
b4d66b87 | 594 | static struct batadv_attribute *batadv_mesh_attrs[] = { |
0ff9b86f SE |
595 | &batadv_attr_aggregated_ogms, |
596 | &batadv_attr_bonding, | |
7a5cc242 | 597 | #ifdef CONFIG_BATMAN_ADV_BLA |
0ff9b86f | 598 | &batadv_attr_bridge_loop_avoidance, |
33af49ad AQ |
599 | #endif |
600 | #ifdef CONFIG_BATMAN_ADV_DAT | |
601 | &batadv_attr_distributed_arp_table, | |
1d8ab8d3 LL |
602 | #endif |
603 | #ifdef CONFIG_BATMAN_ADV_MCAST | |
604 | &batadv_attr_multicast_mode, | |
7a5cc242 | 605 | #endif |
0ff9b86f | 606 | &batadv_attr_fragmentation, |
0ff9b86f SE |
607 | &batadv_attr_routing_algo, |
608 | &batadv_attr_gw_mode, | |
609 | &batadv_attr_orig_interval, | |
610 | &batadv_attr_hop_penalty, | |
611 | &batadv_attr_gw_sel_class, | |
612 | &batadv_attr_gw_bandwidth, | |
c6c8fea2 | 613 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
0ff9b86f | 614 | &batadv_attr_log_level, |
d353d8d4 MH |
615 | #endif |
616 | #ifdef CONFIG_BATMAN_ADV_NC | |
617 | &batadv_attr_network_coding, | |
c6c8fea2 | 618 | #endif |
c42edfe3 | 619 | &batadv_attr_isolation_mark, |
c6c8fea2 SE |
620 | NULL, |
621 | }; | |
622 | ||
b8cbd81d AQ |
623 | BATADV_ATTR_VLAN_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL); |
624 | ||
f34ac9d4 | 625 | /* array of vlan specific sysfs attributes */ |
90f4435d | 626 | static struct batadv_attribute *batadv_vlan_attrs[] = { |
b8cbd81d | 627 | &batadv_attr_vlan_ap_isolation, |
90f4435d AQ |
628 | NULL, |
629 | }; | |
630 | ||
5853e22c | 631 | int batadv_sysfs_add_meshif(struct net_device *dev) |
c6c8fea2 SE |
632 | { |
633 | struct kobject *batif_kobject = &dev->dev.kobj; | |
56303d34 | 634 | struct batadv_priv *bat_priv = netdev_priv(dev); |
b4d66b87 | 635 | struct batadv_attribute **bat_attr; |
c6c8fea2 SE |
636 | int err; |
637 | ||
036cbfeb | 638 | bat_priv->mesh_obj = kobject_create_and_add(BATADV_SYSFS_IF_MESH_SUBDIR, |
c6c8fea2 SE |
639 | batif_kobject); |
640 | if (!bat_priv->mesh_obj) { | |
3e34819e | 641 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
036cbfeb | 642 | BATADV_SYSFS_IF_MESH_SUBDIR); |
c6c8fea2 SE |
643 | goto out; |
644 | } | |
645 | ||
0ff9b86f | 646 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) { |
c6c8fea2 SE |
647 | err = sysfs_create_file(bat_priv->mesh_obj, |
648 | &((*bat_attr)->attr)); | |
649 | if (err) { | |
3e34819e | 650 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
036cbfeb | 651 | dev->name, BATADV_SYSFS_IF_MESH_SUBDIR, |
3e34819e | 652 | ((*bat_attr)->attr).name); |
c6c8fea2 SE |
653 | goto rem_attr; |
654 | } | |
655 | } | |
656 | ||
657 | return 0; | |
658 | ||
659 | rem_attr: | |
0ff9b86f | 660 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
661 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
662 | ||
663 | kobject_put(bat_priv->mesh_obj); | |
664 | bat_priv->mesh_obj = NULL; | |
665 | out: | |
666 | return -ENOMEM; | |
667 | } | |
668 | ||
5853e22c | 669 | void batadv_sysfs_del_meshif(struct net_device *dev) |
c6c8fea2 | 670 | { |
56303d34 | 671 | struct batadv_priv *bat_priv = netdev_priv(dev); |
b4d66b87 | 672 | struct batadv_attribute **bat_attr; |
c6c8fea2 | 673 | |
0ff9b86f | 674 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
675 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
676 | ||
677 | kobject_put(bat_priv->mesh_obj); | |
678 | bat_priv->mesh_obj = NULL; | |
679 | } | |
680 | ||
90f4435d AQ |
681 | /** |
682 | * batadv_sysfs_add_vlan - add all the needed sysfs objects for the new vlan | |
683 | * @dev: netdev of the mesh interface | |
684 | * @vlan: private data of the newly added VLAN interface | |
685 | * | |
62fe710f | 686 | * Return: 0 on success and -ENOMEM if any of the structure allocations fails. |
90f4435d AQ |
687 | */ |
688 | int batadv_sysfs_add_vlan(struct net_device *dev, | |
689 | struct batadv_softif_vlan *vlan) | |
690 | { | |
691 | char vlan_subdir[sizeof(BATADV_SYSFS_VLAN_SUBDIR_PREFIX) + 5]; | |
692 | struct batadv_priv *bat_priv = netdev_priv(dev); | |
693 | struct batadv_attribute **bat_attr; | |
694 | int err; | |
695 | ||
696 | if (vlan->vid & BATADV_VLAN_HAS_TAG) { | |
697 | sprintf(vlan_subdir, BATADV_SYSFS_VLAN_SUBDIR_PREFIX "%hu", | |
698 | vlan->vid & VLAN_VID_MASK); | |
699 | ||
700 | vlan->kobj = kobject_create_and_add(vlan_subdir, | |
701 | bat_priv->mesh_obj); | |
702 | if (!vlan->kobj) { | |
703 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", | |
704 | dev->name, vlan_subdir); | |
705 | goto out; | |
706 | } | |
707 | } else { | |
708 | /* the untagged LAN uses the root folder to store its "VLAN | |
709 | * specific attributes" | |
710 | */ | |
711 | vlan->kobj = bat_priv->mesh_obj; | |
712 | kobject_get(bat_priv->mesh_obj); | |
713 | } | |
714 | ||
715 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) { | |
716 | err = sysfs_create_file(vlan->kobj, | |
717 | &((*bat_attr)->attr)); | |
718 | if (err) { | |
719 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", | |
720 | dev->name, vlan_subdir, | |
721 | ((*bat_attr)->attr).name); | |
722 | goto rem_attr; | |
723 | } | |
724 | } | |
725 | ||
726 | return 0; | |
727 | ||
728 | rem_attr: | |
729 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) | |
730 | sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr)); | |
731 | ||
732 | kobject_put(vlan->kobj); | |
733 | vlan->kobj = NULL; | |
734 | out: | |
735 | return -ENOMEM; | |
736 | } | |
737 | ||
738 | /** | |
739 | * batadv_sysfs_del_vlan - remove all the sysfs objects for a given VLAN | |
740 | * @bat_priv: the bat priv with all the soft interface information | |
741 | * @vlan: the private data of the VLAN to destroy | |
742 | */ | |
743 | void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv, | |
744 | struct batadv_softif_vlan *vlan) | |
745 | { | |
746 | struct batadv_attribute **bat_attr; | |
747 | ||
748 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) | |
749 | sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr)); | |
750 | ||
751 | kobject_put(vlan->kobj); | |
752 | vlan->kobj = NULL; | |
753 | } | |
754 | ||
0ff9b86f SE |
755 | static ssize_t batadv_show_mesh_iface(struct kobject *kobj, |
756 | struct attribute *attr, char *buff) | |
c6c8fea2 | 757 | { |
0ff9b86f | 758 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 759 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 | 760 | ssize_t length; |
e9a4f295 | 761 | const char *ifname; |
c6c8fea2 | 762 | |
56303d34 | 763 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 764 | if (!hard_iface) |
c6c8fea2 SE |
765 | return 0; |
766 | ||
e9a4f295 SE |
767 | if (hard_iface->if_status == BATADV_IF_NOT_IN_USE) |
768 | ifname = "none"; | |
769 | else | |
770 | ifname = hard_iface->soft_iface->name; | |
771 | ||
772 | length = sprintf(buff, "%s\n", ifname); | |
c6c8fea2 | 773 | |
82047ad7 | 774 | batadv_hardif_put(hard_iface); |
c6c8fea2 SE |
775 | |
776 | return length; | |
777 | } | |
778 | ||
0ff9b86f SE |
779 | static ssize_t batadv_store_mesh_iface(struct kobject *kobj, |
780 | struct attribute *attr, char *buff, | |
781 | size_t count) | |
c6c8fea2 | 782 | { |
0ff9b86f | 783 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 784 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 | 785 | int status_tmp = -1; |
ed75ccbe | 786 | int ret = count; |
c6c8fea2 | 787 | |
56303d34 | 788 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 789 | if (!hard_iface) |
c6c8fea2 SE |
790 | return count; |
791 | ||
792 | if (buff[count - 1] == '\n') | |
793 | buff[count - 1] = '\0'; | |
794 | ||
795 | if (strlen(buff) >= IFNAMSIZ) { | |
86ceb360 SE |
796 | pr_err("Invalid parameter for 'mesh_iface' setting received: interface name too long '%s'\n", |
797 | buff); | |
82047ad7 | 798 | batadv_hardif_put(hard_iface); |
c6c8fea2 SE |
799 | return -EINVAL; |
800 | } | |
801 | ||
802 | if (strncmp(buff, "none", 4) == 0) | |
e9a4f295 | 803 | status_tmp = BATADV_IF_NOT_IN_USE; |
c6c8fea2 | 804 | else |
e9a4f295 | 805 | status_tmp = BATADV_IF_I_WANT_YOU; |
c6c8fea2 | 806 | |
e6c10f43 ML |
807 | if (hard_iface->if_status == status_tmp) |
808 | goto out; | |
809 | ||
810 | if ((hard_iface->soft_iface) && | |
811 | (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0)) | |
ed75ccbe | 812 | goto out; |
c6c8fea2 | 813 | |
ac16d148 | 814 | rtnl_lock(); |
3a4375a9 | 815 | |
e9a4f295 | 816 | if (status_tmp == BATADV_IF_NOT_IN_USE) { |
a15fd361 SE |
817 | batadv_hardif_disable_interface(hard_iface, |
818 | BATADV_IF_CLEANUP_AUTO); | |
3a4375a9 | 819 | goto unlock; |
c6c8fea2 SE |
820 | } |
821 | ||
822 | /* if the interface already is in use */ | |
e9a4f295 | 823 | if (hard_iface->if_status != BATADV_IF_NOT_IN_USE) |
a15fd361 SE |
824 | batadv_hardif_disable_interface(hard_iface, |
825 | BATADV_IF_CLEANUP_AUTO); | |
c6c8fea2 | 826 | |
9563877e | 827 | ret = batadv_hardif_enable_interface(hard_iface, buff); |
c6c8fea2 | 828 | |
3a4375a9 SE |
829 | unlock: |
830 | rtnl_unlock(); | |
ed75ccbe | 831 | out: |
82047ad7 | 832 | batadv_hardif_put(hard_iface); |
c6c8fea2 SE |
833 | return ret; |
834 | } | |
835 | ||
0ff9b86f SE |
836 | static ssize_t batadv_show_iface_status(struct kobject *kobj, |
837 | struct attribute *attr, char *buff) | |
c6c8fea2 | 838 | { |
0ff9b86f | 839 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 840 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 SE |
841 | ssize_t length; |
842 | ||
56303d34 | 843 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 844 | if (!hard_iface) |
c6c8fea2 SE |
845 | return 0; |
846 | ||
e6c10f43 | 847 | switch (hard_iface->if_status) { |
e9a4f295 | 848 | case BATADV_IF_TO_BE_REMOVED: |
c6c8fea2 SE |
849 | length = sprintf(buff, "disabling\n"); |
850 | break; | |
e9a4f295 | 851 | case BATADV_IF_INACTIVE: |
c6c8fea2 SE |
852 | length = sprintf(buff, "inactive\n"); |
853 | break; | |
e9a4f295 | 854 | case BATADV_IF_ACTIVE: |
c6c8fea2 SE |
855 | length = sprintf(buff, "active\n"); |
856 | break; | |
e9a4f295 | 857 | case BATADV_IF_TO_BE_ACTIVATED: |
c6c8fea2 SE |
858 | length = sprintf(buff, "enabling\n"); |
859 | break; | |
e9a4f295 | 860 | case BATADV_IF_NOT_IN_USE: |
c6c8fea2 SE |
861 | default: |
862 | length = sprintf(buff, "not in use\n"); | |
863 | break; | |
864 | } | |
865 | ||
82047ad7 | 866 | batadv_hardif_put(hard_iface); |
c6c8fea2 SE |
867 | |
868 | return length; | |
869 | } | |
870 | ||
347c80f0 SE |
871 | static BATADV_ATTR(mesh_iface, S_IRUGO | S_IWUSR, batadv_show_mesh_iface, |
872 | batadv_store_mesh_iface); | |
873 | static BATADV_ATTR(iface_status, S_IRUGO, batadv_show_iface_status, NULL); | |
c6c8fea2 | 874 | |
b4d66b87 | 875 | static struct batadv_attribute *batadv_batman_attrs[] = { |
0ff9b86f SE |
876 | &batadv_attr_mesh_iface, |
877 | &batadv_attr_iface_status, | |
c6c8fea2 SE |
878 | NULL, |
879 | }; | |
880 | ||
5853e22c | 881 | int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev) |
c6c8fea2 SE |
882 | { |
883 | struct kobject *hardif_kobject = &dev->dev.kobj; | |
b4d66b87 | 884 | struct batadv_attribute **bat_attr; |
c6c8fea2 SE |
885 | int err; |
886 | ||
036cbfeb SE |
887 | *hardif_obj = kobject_create_and_add(BATADV_SYSFS_IF_BAT_SUBDIR, |
888 | hardif_kobject); | |
c6c8fea2 SE |
889 | |
890 | if (!*hardif_obj) { | |
3e34819e | 891 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
036cbfeb | 892 | BATADV_SYSFS_IF_BAT_SUBDIR); |
c6c8fea2 SE |
893 | goto out; |
894 | } | |
895 | ||
0ff9b86f | 896 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) { |
c6c8fea2 SE |
897 | err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr)); |
898 | if (err) { | |
3e34819e | 899 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
036cbfeb | 900 | dev->name, BATADV_SYSFS_IF_BAT_SUBDIR, |
3e34819e | 901 | ((*bat_attr)->attr).name); |
c6c8fea2 SE |
902 | goto rem_attr; |
903 | } | |
904 | } | |
905 | ||
906 | return 0; | |
907 | ||
908 | rem_attr: | |
0ff9b86f | 909 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
910 | sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr)); |
911 | out: | |
912 | return -ENOMEM; | |
913 | } | |
914 | ||
5853e22c | 915 | void batadv_sysfs_del_hardif(struct kobject **hardif_obj) |
c6c8fea2 SE |
916 | { |
917 | kobject_put(*hardif_obj); | |
918 | *hardif_obj = NULL; | |
919 | } | |
c6bda689 | 920 | |
56303d34 | 921 | int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type, |
39c75a51 | 922 | enum batadv_uev_action action, const char *data) |
c6bda689 | 923 | { |
5346c35e | 924 | int ret = -ENOMEM; |
c6bda689 AQ |
925 | struct kobject *bat_kobj; |
926 | char *uevent_env[4] = { NULL, NULL, NULL, NULL }; | |
927 | ||
736292c2 | 928 | bat_kobj = &bat_priv->soft_iface->dev.kobj; |
c6bda689 | 929 | |
b98fe24c HS |
930 | uevent_env[0] = kasprintf(GFP_ATOMIC, |
931 | "%s%s", BATADV_UEV_TYPE_VAR, | |
932 | batadv_uev_type_str[type]); | |
c6bda689 AQ |
933 | if (!uevent_env[0]) |
934 | goto out; | |
935 | ||
b98fe24c HS |
936 | uevent_env[1] = kasprintf(GFP_ATOMIC, |
937 | "%s%s", BATADV_UEV_ACTION_VAR, | |
938 | batadv_uev_action_str[action]); | |
c6bda689 AQ |
939 | if (!uevent_env[1]) |
940 | goto out; | |
941 | ||
c6bda689 | 942 | /* If the event is DEL, ignore the data field */ |
39c75a51 | 943 | if (action != BATADV_UEV_DEL) { |
b98fe24c HS |
944 | uevent_env[2] = kasprintf(GFP_ATOMIC, |
945 | "%s%s", BATADV_UEV_DATA_VAR, data); | |
c6bda689 AQ |
946 | if (!uevent_env[2]) |
947 | goto out; | |
c6bda689 AQ |
948 | } |
949 | ||
950 | ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env); | |
951 | out: | |
952 | kfree(uevent_env[0]); | |
953 | kfree(uevent_env[1]); | |
954 | kfree(uevent_env[2]); | |
955 | ||
c6bda689 | 956 | if (ret) |
39c75a51 | 957 | batadv_dbg(BATADV_DBG_BATMAN, bat_priv, |
1eda58bf | 958 | "Impossible to send uevent for (%s,%s,%s) event (err: %d)\n", |
0ff9b86f SE |
959 | batadv_uev_type_str[type], |
960 | batadv_uev_action_str[action], | |
39c75a51 | 961 | (action == BATADV_UEV_DEL ? "NULL" : data), ret); |
c6bda689 AQ |
962 | return ret; |
963 | } |