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e19f9759 | 1 | /* Copyright (C) 2010-2014 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 | ||
18 | #include "main.h" | |
b706b13b | 19 | #include "sysfs.h" |
c6c8fea2 | 20 | #include "translation-table.h" |
33af49ad | 21 | #include "distributed-arp-table.h" |
3f4841ff | 22 | #include "network-coding.h" |
c6c8fea2 SE |
23 | #include "originator.h" |
24 | #include "hard-interface.h" | |
90f4435d | 25 | #include "soft-interface.h" |
c6c8fea2 SE |
26 | #include "gateway_common.h" |
27 | #include "gateway_client.h" | |
c6c8fea2 | 28 | |
0ff9b86f | 29 | static struct net_device *batadv_kobj_to_netdev(struct kobject *obj) |
3d222bba SE |
30 | { |
31 | struct device *dev = container_of(obj->parent, struct device, kobj); | |
f138694b | 32 | |
3d222bba SE |
33 | return to_net_dev(dev); |
34 | } | |
35 | ||
56303d34 | 36 | static struct batadv_priv *batadv_kobj_to_batpriv(struct kobject *obj) |
3d222bba | 37 | { |
0ff9b86f | 38 | struct net_device *net_dev = batadv_kobj_to_netdev(obj); |
f138694b | 39 | |
3d222bba SE |
40 | return netdev_priv(net_dev); |
41 | } | |
c6c8fea2 | 42 | |
90f4435d AQ |
43 | /** |
44 | * batadv_vlan_kobj_to_batpriv - convert a vlan kobj in the associated batpriv | |
45 | * @obj: kobject to covert | |
46 | * | |
47 | * Returns the associated batadv_priv struct. | |
48 | */ | |
49 | static struct batadv_priv *batadv_vlan_kobj_to_batpriv(struct kobject *obj) | |
50 | { | |
51 | /* VLAN specific attributes are located in the root sysfs folder if they | |
52 | * refer to the untagged VLAN.. | |
53 | */ | |
54 | if (!strcmp(BATADV_SYSFS_IF_MESH_SUBDIR, obj->name)) | |
55 | return batadv_kobj_to_batpriv(obj); | |
56 | ||
57 | /* ..while the attributes for the tagged vlans are located in | |
58 | * the in the corresponding "vlan%VID" subfolder | |
59 | */ | |
60 | return batadv_kobj_to_batpriv(obj->parent); | |
61 | } | |
62 | ||
63 | /** | |
64 | * batadv_kobj_to_vlan - convert a kobj in the associated softif_vlan struct | |
65 | * @obj: kobject to covert | |
66 | * | |
67 | * Returns the associated softif_vlan struct if found, NULL otherwise. | |
68 | */ | |
69 | static struct batadv_softif_vlan * | |
70 | batadv_kobj_to_vlan(struct batadv_priv *bat_priv, struct kobject *obj) | |
71 | { | |
72 | struct batadv_softif_vlan *vlan_tmp, *vlan = NULL; | |
73 | ||
74 | rcu_read_lock(); | |
75 | hlist_for_each_entry_rcu(vlan_tmp, &bat_priv->softif_vlan_list, list) { | |
76 | if (vlan_tmp->kobj != obj) | |
77 | continue; | |
78 | ||
79 | if (!atomic_inc_not_zero(&vlan_tmp->refcount)) | |
80 | continue; | |
81 | ||
82 | vlan = vlan_tmp; | |
83 | break; | |
84 | } | |
85 | rcu_read_unlock(); | |
86 | ||
87 | return vlan; | |
88 | } | |
89 | ||
347c80f0 SE |
90 | #define BATADV_UEV_TYPE_VAR "BATTYPE=" |
91 | #define BATADV_UEV_ACTION_VAR "BATACTION=" | |
92 | #define BATADV_UEV_DATA_VAR "BATDATA=" | |
c6bda689 | 93 | |
0ff9b86f | 94 | static char *batadv_uev_action_str[] = { |
c6bda689 AQ |
95 | "add", |
96 | "del", | |
97 | "change" | |
98 | }; | |
99 | ||
0ff9b86f | 100 | static char *batadv_uev_type_str[] = { |
c6bda689 AQ |
101 | "gw" |
102 | }; | |
103 | ||
90f4435d AQ |
104 | /* Use this, if you have customized show and store functions for vlan attrs */ |
105 | #define BATADV_ATTR_VLAN(_name, _mode, _show, _store) \ | |
106 | struct batadv_attribute batadv_attr_vlan_##_name = { \ | |
107 | .attr = {.name = __stringify(_name), \ | |
108 | .mode = _mode }, \ | |
109 | .show = _show, \ | |
110 | .store = _store, \ | |
2b64df20 | 111 | } |
90f4435d | 112 | |
c6c8fea2 | 113 | /* Use this, if you have customized show and store functions */ |
347c80f0 | 114 | #define BATADV_ATTR(_name, _mode, _show, _store) \ |
b4d66b87 | 115 | struct batadv_attribute batadv_attr_##_name = { \ |
347c80f0 SE |
116 | .attr = {.name = __stringify(_name), \ |
117 | .mode = _mode }, \ | |
118 | .show = _show, \ | |
119 | .store = _store, \ | |
2b64df20 | 120 | } |
c6c8fea2 | 121 | |
347c80f0 | 122 | #define BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ |
0ff9b86f SE |
123 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
124 | struct attribute *attr, char *buff, \ | |
125 | size_t count) \ | |
c6c8fea2 | 126 | { \ |
0ff9b86f | 127 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 128 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
f138694b | 129 | \ |
0ff9b86f SE |
130 | return __batadv_store_bool_attr(buff, count, _post_func, attr, \ |
131 | &bat_priv->_name, net_dev); \ | |
c6c8fea2 SE |
132 | } |
133 | ||
347c80f0 | 134 | #define BATADV_ATTR_SIF_SHOW_BOOL(_name) \ |
0ff9b86f SE |
135 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
136 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 137 | { \ |
56303d34 | 138 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
f138694b | 139 | \ |
c6c8fea2 SE |
140 | return sprintf(buff, "%s\n", \ |
141 | atomic_read(&bat_priv->_name) == 0 ? \ | |
142 | "disabled" : "enabled"); \ | |
143 | } \ | |
144 | ||
f245c38b | 145 | /* Use this, if you are going to turn a [name] in the soft-interface |
9cfc7bd6 SE |
146 | * (bat_priv) on or off |
147 | */ | |
347c80f0 SE |
148 | #define BATADV_ATTR_SIF_BOOL(_name, _mode, _post_func) \ |
149 | static BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ | |
150 | static BATADV_ATTR_SIF_SHOW_BOOL(_name) \ | |
151 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ | |
152 | batadv_store_##_name) | |
c6c8fea2 | 153 | |
347c80f0 | 154 | #define BATADV_ATTR_SIF_STORE_UINT(_name, _min, _max, _post_func) \ |
0ff9b86f SE |
155 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
156 | struct attribute *attr, char *buff, \ | |
157 | size_t count) \ | |
c6c8fea2 | 158 | { \ |
0ff9b86f | 159 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 160 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
f138694b | 161 | \ |
0ff9b86f SE |
162 | return __batadv_store_uint_attr(buff, count, _min, _max, \ |
163 | _post_func, attr, \ | |
164 | &bat_priv->_name, net_dev); \ | |
c6c8fea2 SE |
165 | } |
166 | ||
347c80f0 | 167 | #define BATADV_ATTR_SIF_SHOW_UINT(_name) \ |
0ff9b86f SE |
168 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
169 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 170 | { \ |
56303d34 | 171 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
f138694b | 172 | \ |
c6c8fea2 SE |
173 | return sprintf(buff, "%i\n", atomic_read(&bat_priv->_name)); \ |
174 | } \ | |
175 | ||
f245c38b | 176 | /* Use this, if you are going to set [name] in the soft-interface |
9cfc7bd6 SE |
177 | * (bat_priv) to an unsigned integer value |
178 | */ | |
347c80f0 SE |
179 | #define BATADV_ATTR_SIF_UINT(_name, _mode, _min, _max, _post_func) \ |
180 | static BATADV_ATTR_SIF_STORE_UINT(_name, _min, _max, _post_func)\ | |
181 | static BATADV_ATTR_SIF_SHOW_UINT(_name) \ | |
182 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ | |
183 | batadv_store_##_name) | |
c6c8fea2 | 184 | |
90f4435d AQ |
185 | #define BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ |
186 | ssize_t batadv_store_vlan_##_name(struct kobject *kobj, \ | |
187 | struct attribute *attr, char *buff, \ | |
188 | size_t count) \ | |
189 | { \ | |
190 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
191 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
192 | kobj); \ | |
193 | size_t res = __batadv_store_bool_attr(buff, count, _post_func, \ | |
194 | attr, &vlan->_name, \ | |
195 | bat_priv->soft_iface); \ | |
f138694b | 196 | \ |
90f4435d AQ |
197 | batadv_softif_vlan_free_ref(vlan); \ |
198 | return res; \ | |
199 | } | |
200 | ||
201 | #define BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
202 | ssize_t batadv_show_vlan_##_name(struct kobject *kobj, \ | |
203 | struct attribute *attr, char *buff) \ | |
204 | { \ | |
205 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
206 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
207 | kobj); \ | |
208 | size_t res = sprintf(buff, "%s\n", \ | |
209 | atomic_read(&vlan->_name) == 0 ? \ | |
210 | "disabled" : "enabled"); \ | |
f138694b | 211 | \ |
90f4435d AQ |
212 | batadv_softif_vlan_free_ref(vlan); \ |
213 | return res; \ | |
214 | } | |
215 | ||
216 | /* Use this, if you are going to turn a [name] in the vlan struct on or off */ | |
217 | #define BATADV_ATTR_VLAN_BOOL(_name, _mode, _post_func) \ | |
218 | static BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ | |
219 | static BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
220 | static BATADV_ATTR_VLAN(_name, _mode, batadv_show_vlan_##_name, \ | |
221 | batadv_store_vlan_##_name) | |
c6c8fea2 | 222 | |
0ff9b86f SE |
223 | static int batadv_store_bool_attr(char *buff, size_t count, |
224 | struct net_device *net_dev, | |
225 | const char *attr_name, atomic_t *attr) | |
c6c8fea2 SE |
226 | { |
227 | int enabled = -1; | |
228 | ||
229 | if (buff[count - 1] == '\n') | |
230 | buff[count - 1] = '\0'; | |
231 | ||
232 | if ((strncmp(buff, "1", 2) == 0) || | |
233 | (strncmp(buff, "enable", 7) == 0) || | |
234 | (strncmp(buff, "enabled", 8) == 0)) | |
235 | enabled = 1; | |
236 | ||
237 | if ((strncmp(buff, "0", 2) == 0) || | |
238 | (strncmp(buff, "disable", 8) == 0) || | |
239 | (strncmp(buff, "disabled", 9) == 0)) | |
240 | enabled = 0; | |
241 | ||
242 | if (enabled < 0) { | |
3e34819e SE |
243 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
244 | attr_name, buff); | |
c6c8fea2 SE |
245 | return -EINVAL; |
246 | } | |
247 | ||
248 | if (atomic_read(attr) == enabled) | |
249 | return count; | |
250 | ||
3e34819e SE |
251 | batadv_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name, |
252 | atomic_read(attr) == 1 ? "enabled" : "disabled", | |
253 | enabled == 1 ? "enabled" : "disabled"); | |
c6c8fea2 | 254 | |
95c96174 | 255 | atomic_set(attr, (unsigned int)enabled); |
c6c8fea2 SE |
256 | return count; |
257 | } | |
258 | ||
0ff9b86f SE |
259 | static inline ssize_t |
260 | __batadv_store_bool_attr(char *buff, size_t count, | |
261 | void (*post_func)(struct net_device *), | |
262 | struct attribute *attr, | |
263 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 SE |
264 | { |
265 | int ret; | |
266 | ||
0ff9b86f SE |
267 | ret = batadv_store_bool_attr(buff, count, net_dev, attr->name, |
268 | attr_store); | |
c6c8fea2 SE |
269 | if (post_func && ret) |
270 | post_func(net_dev); | |
271 | ||
272 | return ret; | |
273 | } | |
274 | ||
0ff9b86f SE |
275 | static int batadv_store_uint_attr(const char *buff, size_t count, |
276 | struct net_device *net_dev, | |
277 | const char *attr_name, | |
278 | unsigned int min, unsigned int max, | |
279 | atomic_t *attr) | |
c6c8fea2 SE |
280 | { |
281 | unsigned long uint_val; | |
282 | int ret; | |
283 | ||
25a92b13 | 284 | ret = kstrtoul(buff, 10, &uint_val); |
c6c8fea2 | 285 | if (ret) { |
3e34819e SE |
286 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
287 | attr_name, buff); | |
c6c8fea2 SE |
288 | return -EINVAL; |
289 | } | |
290 | ||
291 | if (uint_val < min) { | |
3e34819e SE |
292 | batadv_info(net_dev, "%s: Value is too small: %lu min: %u\n", |
293 | attr_name, uint_val, min); | |
c6c8fea2 SE |
294 | return -EINVAL; |
295 | } | |
296 | ||
297 | if (uint_val > max) { | |
3e34819e SE |
298 | batadv_info(net_dev, "%s: Value is too big: %lu max: %u\n", |
299 | attr_name, uint_val, max); | |
c6c8fea2 SE |
300 | return -EINVAL; |
301 | } | |
302 | ||
303 | if (atomic_read(attr) == uint_val) | |
304 | return count; | |
305 | ||
3e34819e SE |
306 | batadv_info(net_dev, "%s: Changing from: %i to: %lu\n", |
307 | attr_name, atomic_read(attr), uint_val); | |
c6c8fea2 SE |
308 | |
309 | atomic_set(attr, uint_val); | |
310 | return count; | |
311 | } | |
312 | ||
0ff9b86f SE |
313 | static inline ssize_t |
314 | __batadv_store_uint_attr(const char *buff, size_t count, | |
315 | int min, int max, | |
316 | void (*post_func)(struct net_device *), | |
317 | const struct attribute *attr, | |
318 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 SE |
319 | { |
320 | int ret; | |
321 | ||
0ff9b86f SE |
322 | ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max, |
323 | attr_store); | |
c6c8fea2 SE |
324 | if (post_func && ret) |
325 | post_func(net_dev); | |
326 | ||
327 | return ret; | |
328 | } | |
329 | ||
0ff9b86f SE |
330 | static ssize_t batadv_show_bat_algo(struct kobject *kobj, |
331 | struct attribute *attr, char *buff) | |
ea3d2fd1 | 332 | { |
56303d34 | 333 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
f138694b | 334 | |
ea3d2fd1 ML |
335 | return sprintf(buff, "%s\n", bat_priv->bat_algo_ops->name); |
336 | } | |
337 | ||
4e820e72 | 338 | static void batadv_post_gw_reselect(struct net_device *net_dev) |
c6c8fea2 | 339 | { |
56303d34 | 340 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
f138694b | 341 | |
4e820e72 | 342 | batadv_gw_reselect(bat_priv); |
c6c8fea2 SE |
343 | } |
344 | ||
0ff9b86f SE |
345 | static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr, |
346 | char *buff) | |
c6c8fea2 | 347 | { |
56303d34 | 348 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
c6c8fea2 SE |
349 | int bytes_written; |
350 | ||
351 | switch (atomic_read(&bat_priv->gw_mode)) { | |
cd646ab1 | 352 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 SE |
353 | bytes_written = sprintf(buff, "%s\n", |
354 | BATADV_GW_MODE_CLIENT_NAME); | |
c6c8fea2 | 355 | break; |
cd646ab1 | 356 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 SE |
357 | bytes_written = sprintf(buff, "%s\n", |
358 | BATADV_GW_MODE_SERVER_NAME); | |
c6c8fea2 SE |
359 | break; |
360 | default: | |
97ea4ba1 SE |
361 | bytes_written = sprintf(buff, "%s\n", |
362 | BATADV_GW_MODE_OFF_NAME); | |
c6c8fea2 SE |
363 | break; |
364 | } | |
365 | ||
366 | return bytes_written; | |
367 | } | |
368 | ||
0ff9b86f SE |
369 | static ssize_t batadv_store_gw_mode(struct kobject *kobj, |
370 | struct attribute *attr, char *buff, | |
371 | size_t count) | |
c6c8fea2 | 372 | { |
0ff9b86f | 373 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 374 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
c6c8fea2 SE |
375 | char *curr_gw_mode_str; |
376 | int gw_mode_tmp = -1; | |
377 | ||
378 | if (buff[count - 1] == '\n') | |
379 | buff[count - 1] = '\0'; | |
380 | ||
97ea4ba1 SE |
381 | if (strncmp(buff, BATADV_GW_MODE_OFF_NAME, |
382 | strlen(BATADV_GW_MODE_OFF_NAME)) == 0) | |
cd646ab1 | 383 | gw_mode_tmp = BATADV_GW_MODE_OFF; |
c6c8fea2 | 384 | |
97ea4ba1 SE |
385 | if (strncmp(buff, BATADV_GW_MODE_CLIENT_NAME, |
386 | strlen(BATADV_GW_MODE_CLIENT_NAME)) == 0) | |
cd646ab1 | 387 | gw_mode_tmp = BATADV_GW_MODE_CLIENT; |
c6c8fea2 | 388 | |
97ea4ba1 SE |
389 | if (strncmp(buff, BATADV_GW_MODE_SERVER_NAME, |
390 | strlen(BATADV_GW_MODE_SERVER_NAME)) == 0) | |
cd646ab1 | 391 | gw_mode_tmp = BATADV_GW_MODE_SERVER; |
c6c8fea2 SE |
392 | |
393 | if (gw_mode_tmp < 0) { | |
3e34819e SE |
394 | batadv_info(net_dev, |
395 | "Invalid parameter for 'gw mode' setting received: %s\n", | |
396 | buff); | |
c6c8fea2 SE |
397 | return -EINVAL; |
398 | } | |
399 | ||
400 | if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp) | |
401 | return count; | |
402 | ||
403 | switch (atomic_read(&bat_priv->gw_mode)) { | |
cd646ab1 | 404 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 | 405 | curr_gw_mode_str = BATADV_GW_MODE_CLIENT_NAME; |
c6c8fea2 | 406 | break; |
cd646ab1 | 407 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 | 408 | curr_gw_mode_str = BATADV_GW_MODE_SERVER_NAME; |
c6c8fea2 SE |
409 | break; |
410 | default: | |
97ea4ba1 | 411 | curr_gw_mode_str = BATADV_GW_MODE_OFF_NAME; |
c6c8fea2 SE |
412 | break; |
413 | } | |
414 | ||
3e34819e SE |
415 | batadv_info(net_dev, "Changing gw mode from: %s to: %s\n", |
416 | curr_gw_mode_str, buff); | |
c6c8fea2 | 417 | |
f3163181 AQ |
418 | /* Invoking batadv_gw_reselect() is not enough to really de-select the |
419 | * current GW. It will only instruct the gateway client code to perform | |
420 | * a re-election the next time that this is needed. | |
421 | * | |
422 | * When gw client mode is being switched off the current GW must be | |
423 | * de-selected explicitly otherwise no GW_ADD uevent is thrown on | |
424 | * client mode re-activation. This is operation is performed in | |
425 | * batadv_gw_check_client_stop(). | |
426 | */ | |
4e820e72 | 427 | batadv_gw_reselect(bat_priv); |
c6eaa3f0 AQ |
428 | /* always call batadv_gw_check_client_stop() before changing the gateway |
429 | * state | |
430 | */ | |
431 | batadv_gw_check_client_stop(bat_priv); | |
95c96174 | 432 | atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp); |
414254e3 | 433 | batadv_gw_tvlv_container_update(bat_priv); |
c6c8fea2 SE |
434 | return count; |
435 | } | |
436 | ||
0ff9b86f SE |
437 | static ssize_t batadv_show_gw_bwidth(struct kobject *kobj, |
438 | struct attribute *attr, char *buff) | |
c6c8fea2 | 439 | { |
56303d34 | 440 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
414254e3 ML |
441 | uint32_t down, up; |
442 | ||
443 | down = atomic_read(&bat_priv->gw.bandwidth_down); | |
444 | up = atomic_read(&bat_priv->gw.bandwidth_up); | |
445 | ||
446 | return sprintf(buff, "%u.%u/%u.%u MBit\n", down / 10, | |
447 | down % 10, up / 10, up % 10); | |
c6c8fea2 SE |
448 | } |
449 | ||
0ff9b86f SE |
450 | static ssize_t batadv_store_gw_bwidth(struct kobject *kobj, |
451 | struct attribute *attr, char *buff, | |
452 | size_t count) | |
c6c8fea2 | 453 | { |
0ff9b86f | 454 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
c6c8fea2 SE |
455 | |
456 | if (buff[count - 1] == '\n') | |
457 | buff[count - 1] = '\0'; | |
458 | ||
84d5e5e0 | 459 | return batadv_gw_bandwidth_set(net_dev, buff, count); |
c6c8fea2 SE |
460 | } |
461 | ||
c42edfe3 AQ |
462 | /** |
463 | * batadv_show_isolation_mark - print the current isolation mark/mask | |
464 | * @kobj: kobject representing the private mesh sysfs directory | |
465 | * @attr: the batman-adv attribute the user is interacting with | |
466 | * @buff: the buffer that will contain the data to send back to the user | |
467 | * | |
468 | * Returns the number of bytes written into 'buff' on success or a negative | |
469 | * error code in case of failure | |
470 | */ | |
471 | static ssize_t batadv_show_isolation_mark(struct kobject *kobj, | |
472 | struct attribute *attr, char *buff) | |
473 | { | |
474 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); | |
475 | ||
476 | return sprintf(buff, "%#.8x/%#.8x\n", bat_priv->isolation_mark, | |
477 | bat_priv->isolation_mark_mask); | |
478 | } | |
479 | ||
480 | /** | |
481 | * batadv_store_isolation_mark - parse and store the isolation mark/mask entered | |
482 | * by the user | |
483 | * @kobj: kobject representing the private mesh sysfs directory | |
484 | * @attr: the batman-adv attribute the user is interacting with | |
485 | * @buff: the buffer containing the user data | |
486 | * @count: number of bytes in the buffer | |
487 | * | |
488 | * Returns 'count' on success or a negative error code in case of failure | |
489 | */ | |
490 | static ssize_t batadv_store_isolation_mark(struct kobject *kobj, | |
491 | struct attribute *attr, char *buff, | |
492 | size_t count) | |
493 | { | |
494 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); | |
495 | struct batadv_priv *bat_priv = netdev_priv(net_dev); | |
496 | uint32_t mark, mask; | |
497 | char *mask_ptr; | |
498 | ||
499 | /* parse the mask if it has been specified, otherwise assume the mask is | |
500 | * the biggest possible | |
501 | */ | |
502 | mask = 0xFFFFFFFF; | |
503 | mask_ptr = strchr(buff, '/'); | |
504 | if (mask_ptr) { | |
505 | *mask_ptr = '\0'; | |
506 | mask_ptr++; | |
507 | ||
508 | /* the mask must be entered in hex base as it is going to be a | |
509 | * bitmask and not a prefix length | |
510 | */ | |
511 | if (kstrtou32(mask_ptr, 16, &mask) < 0) | |
512 | return -EINVAL; | |
513 | } | |
514 | ||
515 | /* the mark can be entered in any base */ | |
516 | if (kstrtou32(buff, 0, &mark) < 0) | |
517 | return -EINVAL; | |
518 | ||
519 | bat_priv->isolation_mark_mask = mask; | |
520 | /* erase bits not covered by the mask */ | |
521 | bat_priv->isolation_mark = mark & bat_priv->isolation_mark_mask; | |
522 | ||
523 | batadv_info(net_dev, | |
524 | "New skb mark for extended isolation: %#.8x/%#.8x\n", | |
525 | bat_priv->isolation_mark, bat_priv->isolation_mark_mask); | |
526 | ||
527 | return count; | |
528 | } | |
529 | ||
347c80f0 SE |
530 | BATADV_ATTR_SIF_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL); |
531 | BATADV_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL); | |
7a5cc242 | 532 | #ifdef CONFIG_BATMAN_ADV_BLA |
347c80f0 | 533 | BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, NULL); |
7a5cc242 | 534 | #endif |
33af49ad | 535 | #ifdef CONFIG_BATMAN_ADV_DAT |
17cf0ea4 ML |
536 | BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, |
537 | batadv_dat_status_update); | |
33af49ad | 538 | #endif |
347c80f0 | 539 | BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu); |
347c80f0 SE |
540 | static BATADV_ATTR(routing_algo, S_IRUGO, batadv_show_bat_algo, NULL); |
541 | static BATADV_ATTR(gw_mode, S_IRUGO | S_IWUSR, batadv_show_gw_mode, | |
542 | batadv_store_gw_mode); | |
42d0b044 SE |
543 | BATADV_ATTR_SIF_UINT(orig_interval, S_IRUGO | S_IWUSR, 2 * BATADV_JITTER, |
544 | INT_MAX, NULL); | |
545 | BATADV_ATTR_SIF_UINT(hop_penalty, S_IRUGO | S_IWUSR, 0, BATADV_TQ_MAX_VALUE, | |
347c80f0 | 546 | NULL); |
42d0b044 | 547 | BATADV_ATTR_SIF_UINT(gw_sel_class, S_IRUGO | S_IWUSR, 1, BATADV_TQ_MAX_VALUE, |
4e820e72 | 548 | batadv_post_gw_reselect); |
347c80f0 SE |
549 | static BATADV_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, batadv_show_gw_bwidth, |
550 | batadv_store_gw_bwidth); | |
1d8ab8d3 LL |
551 | #ifdef CONFIG_BATMAN_ADV_MCAST |
552 | BATADV_ATTR_SIF_BOOL(multicast_mode, S_IRUGO | S_IWUSR, NULL); | |
553 | #endif | |
c6c8fea2 | 554 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
39c75a51 | 555 | BATADV_ATTR_SIF_UINT(log_level, S_IRUGO | S_IWUSR, 0, BATADV_DBG_ALL, NULL); |
c6c8fea2 | 556 | #endif |
d353d8d4 | 557 | #ifdef CONFIG_BATMAN_ADV_NC |
3f4841ff ML |
558 | BATADV_ATTR_SIF_BOOL(network_coding, S_IRUGO | S_IWUSR, |
559 | batadv_nc_status_update); | |
d353d8d4 | 560 | #endif |
c42edfe3 AQ |
561 | static BATADV_ATTR(isolation_mark, S_IRUGO | S_IWUSR, |
562 | batadv_show_isolation_mark, batadv_store_isolation_mark); | |
c6c8fea2 | 563 | |
b4d66b87 | 564 | static struct batadv_attribute *batadv_mesh_attrs[] = { |
0ff9b86f SE |
565 | &batadv_attr_aggregated_ogms, |
566 | &batadv_attr_bonding, | |
7a5cc242 | 567 | #ifdef CONFIG_BATMAN_ADV_BLA |
0ff9b86f | 568 | &batadv_attr_bridge_loop_avoidance, |
33af49ad AQ |
569 | #endif |
570 | #ifdef CONFIG_BATMAN_ADV_DAT | |
571 | &batadv_attr_distributed_arp_table, | |
1d8ab8d3 LL |
572 | #endif |
573 | #ifdef CONFIG_BATMAN_ADV_MCAST | |
574 | &batadv_attr_multicast_mode, | |
7a5cc242 | 575 | #endif |
0ff9b86f | 576 | &batadv_attr_fragmentation, |
0ff9b86f SE |
577 | &batadv_attr_routing_algo, |
578 | &batadv_attr_gw_mode, | |
579 | &batadv_attr_orig_interval, | |
580 | &batadv_attr_hop_penalty, | |
581 | &batadv_attr_gw_sel_class, | |
582 | &batadv_attr_gw_bandwidth, | |
c6c8fea2 | 583 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
0ff9b86f | 584 | &batadv_attr_log_level, |
d353d8d4 MH |
585 | #endif |
586 | #ifdef CONFIG_BATMAN_ADV_NC | |
587 | &batadv_attr_network_coding, | |
c6c8fea2 | 588 | #endif |
c42edfe3 | 589 | &batadv_attr_isolation_mark, |
c6c8fea2 SE |
590 | NULL, |
591 | }; | |
592 | ||
b8cbd81d AQ |
593 | BATADV_ATTR_VLAN_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL); |
594 | ||
90f4435d AQ |
595 | /** |
596 | * batadv_vlan_attrs - array of vlan specific sysfs attributes | |
597 | */ | |
598 | static struct batadv_attribute *batadv_vlan_attrs[] = { | |
b8cbd81d | 599 | &batadv_attr_vlan_ap_isolation, |
90f4435d AQ |
600 | NULL, |
601 | }; | |
602 | ||
5853e22c | 603 | int batadv_sysfs_add_meshif(struct net_device *dev) |
c6c8fea2 SE |
604 | { |
605 | struct kobject *batif_kobject = &dev->dev.kobj; | |
56303d34 | 606 | struct batadv_priv *bat_priv = netdev_priv(dev); |
b4d66b87 | 607 | struct batadv_attribute **bat_attr; |
c6c8fea2 SE |
608 | int err; |
609 | ||
036cbfeb | 610 | bat_priv->mesh_obj = kobject_create_and_add(BATADV_SYSFS_IF_MESH_SUBDIR, |
c6c8fea2 SE |
611 | batif_kobject); |
612 | if (!bat_priv->mesh_obj) { | |
3e34819e | 613 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
036cbfeb | 614 | BATADV_SYSFS_IF_MESH_SUBDIR); |
c6c8fea2 SE |
615 | goto out; |
616 | } | |
617 | ||
0ff9b86f | 618 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) { |
c6c8fea2 SE |
619 | err = sysfs_create_file(bat_priv->mesh_obj, |
620 | &((*bat_attr)->attr)); | |
621 | if (err) { | |
3e34819e | 622 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
036cbfeb | 623 | dev->name, BATADV_SYSFS_IF_MESH_SUBDIR, |
3e34819e | 624 | ((*bat_attr)->attr).name); |
c6c8fea2 SE |
625 | goto rem_attr; |
626 | } | |
627 | } | |
628 | ||
629 | return 0; | |
630 | ||
631 | rem_attr: | |
0ff9b86f | 632 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
633 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
634 | ||
635 | kobject_put(bat_priv->mesh_obj); | |
636 | bat_priv->mesh_obj = NULL; | |
637 | out: | |
638 | return -ENOMEM; | |
639 | } | |
640 | ||
5853e22c | 641 | void batadv_sysfs_del_meshif(struct net_device *dev) |
c6c8fea2 | 642 | { |
56303d34 | 643 | struct batadv_priv *bat_priv = netdev_priv(dev); |
b4d66b87 | 644 | struct batadv_attribute **bat_attr; |
c6c8fea2 | 645 | |
0ff9b86f | 646 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
647 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
648 | ||
649 | kobject_put(bat_priv->mesh_obj); | |
650 | bat_priv->mesh_obj = NULL; | |
651 | } | |
652 | ||
90f4435d AQ |
653 | /** |
654 | * batadv_sysfs_add_vlan - add all the needed sysfs objects for the new vlan | |
655 | * @dev: netdev of the mesh interface | |
656 | * @vlan: private data of the newly added VLAN interface | |
657 | * | |
658 | * Returns 0 on success and -ENOMEM if any of the structure allocations fails. | |
659 | */ | |
660 | int batadv_sysfs_add_vlan(struct net_device *dev, | |
661 | struct batadv_softif_vlan *vlan) | |
662 | { | |
663 | char vlan_subdir[sizeof(BATADV_SYSFS_VLAN_SUBDIR_PREFIX) + 5]; | |
664 | struct batadv_priv *bat_priv = netdev_priv(dev); | |
665 | struct batadv_attribute **bat_attr; | |
666 | int err; | |
667 | ||
668 | if (vlan->vid & BATADV_VLAN_HAS_TAG) { | |
669 | sprintf(vlan_subdir, BATADV_SYSFS_VLAN_SUBDIR_PREFIX "%hu", | |
670 | vlan->vid & VLAN_VID_MASK); | |
671 | ||
672 | vlan->kobj = kobject_create_and_add(vlan_subdir, | |
673 | bat_priv->mesh_obj); | |
674 | if (!vlan->kobj) { | |
675 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", | |
676 | dev->name, vlan_subdir); | |
677 | goto out; | |
678 | } | |
679 | } else { | |
680 | /* the untagged LAN uses the root folder to store its "VLAN | |
681 | * specific attributes" | |
682 | */ | |
683 | vlan->kobj = bat_priv->mesh_obj; | |
684 | kobject_get(bat_priv->mesh_obj); | |
685 | } | |
686 | ||
687 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) { | |
688 | err = sysfs_create_file(vlan->kobj, | |
689 | &((*bat_attr)->attr)); | |
690 | if (err) { | |
691 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", | |
692 | dev->name, vlan_subdir, | |
693 | ((*bat_attr)->attr).name); | |
694 | goto rem_attr; | |
695 | } | |
696 | } | |
697 | ||
698 | return 0; | |
699 | ||
700 | rem_attr: | |
701 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) | |
702 | sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr)); | |
703 | ||
704 | kobject_put(vlan->kobj); | |
705 | vlan->kobj = NULL; | |
706 | out: | |
707 | return -ENOMEM; | |
708 | } | |
709 | ||
710 | /** | |
711 | * batadv_sysfs_del_vlan - remove all the sysfs objects for a given VLAN | |
712 | * @bat_priv: the bat priv with all the soft interface information | |
713 | * @vlan: the private data of the VLAN to destroy | |
714 | */ | |
715 | void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv, | |
716 | struct batadv_softif_vlan *vlan) | |
717 | { | |
718 | struct batadv_attribute **bat_attr; | |
719 | ||
720 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) | |
721 | sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr)); | |
722 | ||
723 | kobject_put(vlan->kobj); | |
724 | vlan->kobj = NULL; | |
725 | } | |
726 | ||
0ff9b86f SE |
727 | static ssize_t batadv_show_mesh_iface(struct kobject *kobj, |
728 | struct attribute *attr, char *buff) | |
c6c8fea2 | 729 | { |
0ff9b86f | 730 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 731 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 | 732 | ssize_t length; |
e9a4f295 | 733 | const char *ifname; |
c6c8fea2 | 734 | |
56303d34 | 735 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 736 | if (!hard_iface) |
c6c8fea2 SE |
737 | return 0; |
738 | ||
e9a4f295 SE |
739 | if (hard_iface->if_status == BATADV_IF_NOT_IN_USE) |
740 | ifname = "none"; | |
741 | else | |
742 | ifname = hard_iface->soft_iface->name; | |
743 | ||
744 | length = sprintf(buff, "%s\n", ifname); | |
c6c8fea2 | 745 | |
e5d89254 | 746 | batadv_hardif_free_ref(hard_iface); |
c6c8fea2 SE |
747 | |
748 | return length; | |
749 | } | |
750 | ||
0ff9b86f SE |
751 | static ssize_t batadv_store_mesh_iface(struct kobject *kobj, |
752 | struct attribute *attr, char *buff, | |
753 | size_t count) | |
c6c8fea2 | 754 | { |
0ff9b86f | 755 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 756 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 | 757 | int status_tmp = -1; |
ed75ccbe | 758 | int ret = count; |
c6c8fea2 | 759 | |
56303d34 | 760 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 761 | if (!hard_iface) |
c6c8fea2 SE |
762 | return count; |
763 | ||
764 | if (buff[count - 1] == '\n') | |
765 | buff[count - 1] = '\0'; | |
766 | ||
767 | if (strlen(buff) >= IFNAMSIZ) { | |
86ceb360 SE |
768 | pr_err("Invalid parameter for 'mesh_iface' setting received: interface name too long '%s'\n", |
769 | buff); | |
e5d89254 | 770 | batadv_hardif_free_ref(hard_iface); |
c6c8fea2 SE |
771 | return -EINVAL; |
772 | } | |
773 | ||
774 | if (strncmp(buff, "none", 4) == 0) | |
e9a4f295 | 775 | status_tmp = BATADV_IF_NOT_IN_USE; |
c6c8fea2 | 776 | else |
e9a4f295 | 777 | status_tmp = BATADV_IF_I_WANT_YOU; |
c6c8fea2 | 778 | |
e6c10f43 ML |
779 | if (hard_iface->if_status == status_tmp) |
780 | goto out; | |
781 | ||
782 | if ((hard_iface->soft_iface) && | |
783 | (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0)) | |
ed75ccbe | 784 | goto out; |
c6c8fea2 | 785 | |
ac16d148 | 786 | rtnl_lock(); |
3a4375a9 | 787 | |
e9a4f295 | 788 | if (status_tmp == BATADV_IF_NOT_IN_USE) { |
a15fd361 SE |
789 | batadv_hardif_disable_interface(hard_iface, |
790 | BATADV_IF_CLEANUP_AUTO); | |
3a4375a9 | 791 | goto unlock; |
c6c8fea2 SE |
792 | } |
793 | ||
794 | /* if the interface already is in use */ | |
e9a4f295 | 795 | if (hard_iface->if_status != BATADV_IF_NOT_IN_USE) |
a15fd361 SE |
796 | batadv_hardif_disable_interface(hard_iface, |
797 | BATADV_IF_CLEANUP_AUTO); | |
c6c8fea2 | 798 | |
9563877e | 799 | ret = batadv_hardif_enable_interface(hard_iface, buff); |
c6c8fea2 | 800 | |
3a4375a9 SE |
801 | unlock: |
802 | rtnl_unlock(); | |
ed75ccbe | 803 | out: |
e5d89254 | 804 | batadv_hardif_free_ref(hard_iface); |
c6c8fea2 SE |
805 | return ret; |
806 | } | |
807 | ||
0ff9b86f SE |
808 | static ssize_t batadv_show_iface_status(struct kobject *kobj, |
809 | struct attribute *attr, char *buff) | |
c6c8fea2 | 810 | { |
0ff9b86f | 811 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 812 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 SE |
813 | ssize_t length; |
814 | ||
56303d34 | 815 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 816 | if (!hard_iface) |
c6c8fea2 SE |
817 | return 0; |
818 | ||
e6c10f43 | 819 | switch (hard_iface->if_status) { |
e9a4f295 | 820 | case BATADV_IF_TO_BE_REMOVED: |
c6c8fea2 SE |
821 | length = sprintf(buff, "disabling\n"); |
822 | break; | |
e9a4f295 | 823 | case BATADV_IF_INACTIVE: |
c6c8fea2 SE |
824 | length = sprintf(buff, "inactive\n"); |
825 | break; | |
e9a4f295 | 826 | case BATADV_IF_ACTIVE: |
c6c8fea2 SE |
827 | length = sprintf(buff, "active\n"); |
828 | break; | |
e9a4f295 | 829 | case BATADV_IF_TO_BE_ACTIVATED: |
c6c8fea2 SE |
830 | length = sprintf(buff, "enabling\n"); |
831 | break; | |
e9a4f295 | 832 | case BATADV_IF_NOT_IN_USE: |
c6c8fea2 SE |
833 | default: |
834 | length = sprintf(buff, "not in use\n"); | |
835 | break; | |
836 | } | |
837 | ||
e5d89254 | 838 | batadv_hardif_free_ref(hard_iface); |
c6c8fea2 SE |
839 | |
840 | return length; | |
841 | } | |
842 | ||
347c80f0 SE |
843 | static BATADV_ATTR(mesh_iface, S_IRUGO | S_IWUSR, batadv_show_mesh_iface, |
844 | batadv_store_mesh_iface); | |
845 | static BATADV_ATTR(iface_status, S_IRUGO, batadv_show_iface_status, NULL); | |
c6c8fea2 | 846 | |
b4d66b87 | 847 | static struct batadv_attribute *batadv_batman_attrs[] = { |
0ff9b86f SE |
848 | &batadv_attr_mesh_iface, |
849 | &batadv_attr_iface_status, | |
c6c8fea2 SE |
850 | NULL, |
851 | }; | |
852 | ||
5853e22c | 853 | int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev) |
c6c8fea2 SE |
854 | { |
855 | struct kobject *hardif_kobject = &dev->dev.kobj; | |
b4d66b87 | 856 | struct batadv_attribute **bat_attr; |
c6c8fea2 SE |
857 | int err; |
858 | ||
036cbfeb SE |
859 | *hardif_obj = kobject_create_and_add(BATADV_SYSFS_IF_BAT_SUBDIR, |
860 | hardif_kobject); | |
c6c8fea2 SE |
861 | |
862 | if (!*hardif_obj) { | |
3e34819e | 863 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
036cbfeb | 864 | BATADV_SYSFS_IF_BAT_SUBDIR); |
c6c8fea2 SE |
865 | goto out; |
866 | } | |
867 | ||
0ff9b86f | 868 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) { |
c6c8fea2 SE |
869 | err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr)); |
870 | if (err) { | |
3e34819e | 871 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
036cbfeb | 872 | dev->name, BATADV_SYSFS_IF_BAT_SUBDIR, |
3e34819e | 873 | ((*bat_attr)->attr).name); |
c6c8fea2 SE |
874 | goto rem_attr; |
875 | } | |
876 | } | |
877 | ||
878 | return 0; | |
879 | ||
880 | rem_attr: | |
0ff9b86f | 881 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
882 | sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr)); |
883 | out: | |
884 | return -ENOMEM; | |
885 | } | |
886 | ||
5853e22c | 887 | void batadv_sysfs_del_hardif(struct kobject **hardif_obj) |
c6c8fea2 SE |
888 | { |
889 | kobject_put(*hardif_obj); | |
890 | *hardif_obj = NULL; | |
891 | } | |
c6bda689 | 892 | |
56303d34 | 893 | int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type, |
39c75a51 | 894 | enum batadv_uev_action action, const char *data) |
c6bda689 | 895 | { |
5346c35e | 896 | int ret = -ENOMEM; |
c6bda689 AQ |
897 | struct kobject *bat_kobj; |
898 | char *uevent_env[4] = { NULL, NULL, NULL, NULL }; | |
899 | ||
736292c2 | 900 | bat_kobj = &bat_priv->soft_iface->dev.kobj; |
c6bda689 | 901 | |
b98fe24c HS |
902 | uevent_env[0] = kasprintf(GFP_ATOMIC, |
903 | "%s%s", BATADV_UEV_TYPE_VAR, | |
904 | batadv_uev_type_str[type]); | |
c6bda689 AQ |
905 | if (!uevent_env[0]) |
906 | goto out; | |
907 | ||
b98fe24c HS |
908 | uevent_env[1] = kasprintf(GFP_ATOMIC, |
909 | "%s%s", BATADV_UEV_ACTION_VAR, | |
910 | batadv_uev_action_str[action]); | |
c6bda689 AQ |
911 | if (!uevent_env[1]) |
912 | goto out; | |
913 | ||
c6bda689 | 914 | /* If the event is DEL, ignore the data field */ |
39c75a51 | 915 | if (action != BATADV_UEV_DEL) { |
b98fe24c HS |
916 | uevent_env[2] = kasprintf(GFP_ATOMIC, |
917 | "%s%s", BATADV_UEV_DATA_VAR, data); | |
c6bda689 AQ |
918 | if (!uevent_env[2]) |
919 | goto out; | |
c6bda689 AQ |
920 | } |
921 | ||
922 | ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env); | |
923 | out: | |
924 | kfree(uevent_env[0]); | |
925 | kfree(uevent_env[1]); | |
926 | kfree(uevent_env[2]); | |
927 | ||
c6bda689 | 928 | if (ret) |
39c75a51 | 929 | batadv_dbg(BATADV_DBG_BATMAN, bat_priv, |
1eda58bf | 930 | "Impossible to send uevent for (%s,%s,%s) event (err: %d)\n", |
0ff9b86f SE |
931 | batadv_uev_type_str[type], |
932 | batadv_uev_action_str[action], | |
39c75a51 | 933 | (action == BATADV_UEV_DEL ? "NULL" : data), ret); |
c6bda689 AQ |
934 | return ret; |
935 | } |