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0b873931 | 1 | /* Copyright (C) 2010-2013 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); | |
32 | return to_net_dev(dev); | |
33 | } | |
34 | ||
56303d34 | 35 | static struct batadv_priv *batadv_kobj_to_batpriv(struct kobject *obj) |
3d222bba | 36 | { |
0ff9b86f | 37 | struct net_device *net_dev = batadv_kobj_to_netdev(obj); |
3d222bba SE |
38 | return netdev_priv(net_dev); |
39 | } | |
c6c8fea2 | 40 | |
90f4435d AQ |
41 | /** |
42 | * batadv_vlan_kobj_to_batpriv - convert a vlan kobj in the associated batpriv | |
43 | * @obj: kobject to covert | |
44 | * | |
45 | * Returns the associated batadv_priv struct. | |
46 | */ | |
47 | static struct batadv_priv *batadv_vlan_kobj_to_batpriv(struct kobject *obj) | |
48 | { | |
49 | /* VLAN specific attributes are located in the root sysfs folder if they | |
50 | * refer to the untagged VLAN.. | |
51 | */ | |
52 | if (!strcmp(BATADV_SYSFS_IF_MESH_SUBDIR, obj->name)) | |
53 | return batadv_kobj_to_batpriv(obj); | |
54 | ||
55 | /* ..while the attributes for the tagged vlans are located in | |
56 | * the in the corresponding "vlan%VID" subfolder | |
57 | */ | |
58 | return batadv_kobj_to_batpriv(obj->parent); | |
59 | } | |
60 | ||
61 | /** | |
62 | * batadv_kobj_to_vlan - convert a kobj in the associated softif_vlan struct | |
63 | * @obj: kobject to covert | |
64 | * | |
65 | * Returns the associated softif_vlan struct if found, NULL otherwise. | |
66 | */ | |
67 | static struct batadv_softif_vlan * | |
68 | batadv_kobj_to_vlan(struct batadv_priv *bat_priv, struct kobject *obj) | |
69 | { | |
70 | struct batadv_softif_vlan *vlan_tmp, *vlan = NULL; | |
71 | ||
72 | rcu_read_lock(); | |
73 | hlist_for_each_entry_rcu(vlan_tmp, &bat_priv->softif_vlan_list, list) { | |
74 | if (vlan_tmp->kobj != obj) | |
75 | continue; | |
76 | ||
77 | if (!atomic_inc_not_zero(&vlan_tmp->refcount)) | |
78 | continue; | |
79 | ||
80 | vlan = vlan_tmp; | |
81 | break; | |
82 | } | |
83 | rcu_read_unlock(); | |
84 | ||
85 | return vlan; | |
86 | } | |
87 | ||
347c80f0 SE |
88 | #define BATADV_UEV_TYPE_VAR "BATTYPE=" |
89 | #define BATADV_UEV_ACTION_VAR "BATACTION=" | |
90 | #define BATADV_UEV_DATA_VAR "BATDATA=" | |
c6bda689 | 91 | |
0ff9b86f | 92 | static char *batadv_uev_action_str[] = { |
c6bda689 AQ |
93 | "add", |
94 | "del", | |
95 | "change" | |
96 | }; | |
97 | ||
0ff9b86f | 98 | static char *batadv_uev_type_str[] = { |
c6bda689 AQ |
99 | "gw" |
100 | }; | |
101 | ||
90f4435d AQ |
102 | /* Use this, if you have customized show and store functions for vlan attrs */ |
103 | #define BATADV_ATTR_VLAN(_name, _mode, _show, _store) \ | |
104 | struct batadv_attribute batadv_attr_vlan_##_name = { \ | |
105 | .attr = {.name = __stringify(_name), \ | |
106 | .mode = _mode }, \ | |
107 | .show = _show, \ | |
108 | .store = _store, \ | |
109 | }; | |
110 | ||
c6c8fea2 | 111 | /* Use this, if you have customized show and store functions */ |
347c80f0 | 112 | #define BATADV_ATTR(_name, _mode, _show, _store) \ |
b4d66b87 | 113 | struct batadv_attribute batadv_attr_##_name = { \ |
347c80f0 SE |
114 | .attr = {.name = __stringify(_name), \ |
115 | .mode = _mode }, \ | |
116 | .show = _show, \ | |
117 | .store = _store, \ | |
c6c8fea2 SE |
118 | }; |
119 | ||
347c80f0 | 120 | #define BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ |
0ff9b86f SE |
121 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
122 | struct attribute *attr, char *buff, \ | |
123 | size_t count) \ | |
c6c8fea2 | 124 | { \ |
0ff9b86f | 125 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 126 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
0ff9b86f SE |
127 | return __batadv_store_bool_attr(buff, count, _post_func, attr, \ |
128 | &bat_priv->_name, net_dev); \ | |
c6c8fea2 SE |
129 | } |
130 | ||
347c80f0 | 131 | #define BATADV_ATTR_SIF_SHOW_BOOL(_name) \ |
0ff9b86f SE |
132 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
133 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 134 | { \ |
56303d34 | 135 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
c6c8fea2 SE |
136 | return sprintf(buff, "%s\n", \ |
137 | atomic_read(&bat_priv->_name) == 0 ? \ | |
138 | "disabled" : "enabled"); \ | |
139 | } \ | |
140 | ||
f245c38b | 141 | /* Use this, if you are going to turn a [name] in the soft-interface |
9cfc7bd6 SE |
142 | * (bat_priv) on or off |
143 | */ | |
347c80f0 SE |
144 | #define BATADV_ATTR_SIF_BOOL(_name, _mode, _post_func) \ |
145 | static BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ | |
146 | static BATADV_ATTR_SIF_SHOW_BOOL(_name) \ | |
147 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ | |
148 | batadv_store_##_name) | |
c6c8fea2 SE |
149 | |
150 | ||
347c80f0 | 151 | #define BATADV_ATTR_SIF_STORE_UINT(_name, _min, _max, _post_func) \ |
0ff9b86f SE |
152 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
153 | struct attribute *attr, char *buff, \ | |
154 | size_t count) \ | |
c6c8fea2 | 155 | { \ |
0ff9b86f | 156 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 157 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
0ff9b86f SE |
158 | return __batadv_store_uint_attr(buff, count, _min, _max, \ |
159 | _post_func, attr, \ | |
160 | &bat_priv->_name, net_dev); \ | |
c6c8fea2 SE |
161 | } |
162 | ||
347c80f0 | 163 | #define BATADV_ATTR_SIF_SHOW_UINT(_name) \ |
0ff9b86f SE |
164 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
165 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 166 | { \ |
56303d34 | 167 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
c6c8fea2 SE |
168 | return sprintf(buff, "%i\n", atomic_read(&bat_priv->_name)); \ |
169 | } \ | |
170 | ||
f245c38b | 171 | /* Use this, if you are going to set [name] in the soft-interface |
9cfc7bd6 SE |
172 | * (bat_priv) to an unsigned integer value |
173 | */ | |
347c80f0 SE |
174 | #define BATADV_ATTR_SIF_UINT(_name, _mode, _min, _max, _post_func) \ |
175 | static BATADV_ATTR_SIF_STORE_UINT(_name, _min, _max, _post_func)\ | |
176 | static BATADV_ATTR_SIF_SHOW_UINT(_name) \ | |
177 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ | |
178 | batadv_store_##_name) | |
c6c8fea2 | 179 | |
90f4435d AQ |
180 | #define BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ |
181 | ssize_t batadv_store_vlan_##_name(struct kobject *kobj, \ | |
182 | struct attribute *attr, char *buff, \ | |
183 | size_t count) \ | |
184 | { \ | |
185 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
186 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
187 | kobj); \ | |
188 | size_t res = __batadv_store_bool_attr(buff, count, _post_func, \ | |
189 | attr, &vlan->_name, \ | |
190 | bat_priv->soft_iface); \ | |
191 | batadv_softif_vlan_free_ref(vlan); \ | |
192 | return res; \ | |
193 | } | |
194 | ||
195 | #define BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
196 | ssize_t batadv_show_vlan_##_name(struct kobject *kobj, \ | |
197 | struct attribute *attr, char *buff) \ | |
198 | { \ | |
199 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
200 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
201 | kobj); \ | |
202 | size_t res = sprintf(buff, "%s\n", \ | |
203 | atomic_read(&vlan->_name) == 0 ? \ | |
204 | "disabled" : "enabled"); \ | |
205 | batadv_softif_vlan_free_ref(vlan); \ | |
206 | return res; \ | |
207 | } | |
208 | ||
209 | /* Use this, if you are going to turn a [name] in the vlan struct on or off */ | |
210 | #define BATADV_ATTR_VLAN_BOOL(_name, _mode, _post_func) \ | |
211 | static BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ | |
212 | static BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
213 | static BATADV_ATTR_VLAN(_name, _mode, batadv_show_vlan_##_name, \ | |
214 | batadv_store_vlan_##_name) | |
c6c8fea2 | 215 | |
0ff9b86f SE |
216 | static int batadv_store_bool_attr(char *buff, size_t count, |
217 | struct net_device *net_dev, | |
218 | const char *attr_name, atomic_t *attr) | |
c6c8fea2 SE |
219 | { |
220 | int enabled = -1; | |
221 | ||
222 | if (buff[count - 1] == '\n') | |
223 | buff[count - 1] = '\0'; | |
224 | ||
225 | if ((strncmp(buff, "1", 2) == 0) || | |
226 | (strncmp(buff, "enable", 7) == 0) || | |
227 | (strncmp(buff, "enabled", 8) == 0)) | |
228 | enabled = 1; | |
229 | ||
230 | if ((strncmp(buff, "0", 2) == 0) || | |
231 | (strncmp(buff, "disable", 8) == 0) || | |
232 | (strncmp(buff, "disabled", 9) == 0)) | |
233 | enabled = 0; | |
234 | ||
235 | if (enabled < 0) { | |
3e34819e SE |
236 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
237 | attr_name, buff); | |
c6c8fea2 SE |
238 | return -EINVAL; |
239 | } | |
240 | ||
241 | if (atomic_read(attr) == enabled) | |
242 | return count; | |
243 | ||
3e34819e SE |
244 | batadv_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name, |
245 | atomic_read(attr) == 1 ? "enabled" : "disabled", | |
246 | enabled == 1 ? "enabled" : "disabled"); | |
c6c8fea2 | 247 | |
95c96174 | 248 | atomic_set(attr, (unsigned int)enabled); |
c6c8fea2 SE |
249 | return count; |
250 | } | |
251 | ||
0ff9b86f SE |
252 | static inline ssize_t |
253 | __batadv_store_bool_attr(char *buff, size_t count, | |
254 | void (*post_func)(struct net_device *), | |
255 | struct attribute *attr, | |
256 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 SE |
257 | { |
258 | int ret; | |
259 | ||
0ff9b86f SE |
260 | ret = batadv_store_bool_attr(buff, count, net_dev, attr->name, |
261 | attr_store); | |
c6c8fea2 SE |
262 | if (post_func && ret) |
263 | post_func(net_dev); | |
264 | ||
265 | return ret; | |
266 | } | |
267 | ||
0ff9b86f SE |
268 | static int batadv_store_uint_attr(const char *buff, size_t count, |
269 | struct net_device *net_dev, | |
270 | const char *attr_name, | |
271 | unsigned int min, unsigned int max, | |
272 | atomic_t *attr) | |
c6c8fea2 SE |
273 | { |
274 | unsigned long uint_val; | |
275 | int ret; | |
276 | ||
25a92b13 | 277 | ret = kstrtoul(buff, 10, &uint_val); |
c6c8fea2 | 278 | if (ret) { |
3e34819e SE |
279 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
280 | attr_name, buff); | |
c6c8fea2 SE |
281 | return -EINVAL; |
282 | } | |
283 | ||
284 | if (uint_val < min) { | |
3e34819e SE |
285 | batadv_info(net_dev, "%s: Value is too small: %lu min: %u\n", |
286 | attr_name, uint_val, min); | |
c6c8fea2 SE |
287 | return -EINVAL; |
288 | } | |
289 | ||
290 | if (uint_val > max) { | |
3e34819e SE |
291 | batadv_info(net_dev, "%s: Value is too big: %lu max: %u\n", |
292 | attr_name, uint_val, max); | |
c6c8fea2 SE |
293 | return -EINVAL; |
294 | } | |
295 | ||
296 | if (atomic_read(attr) == uint_val) | |
297 | return count; | |
298 | ||
3e34819e SE |
299 | batadv_info(net_dev, "%s: Changing from: %i to: %lu\n", |
300 | attr_name, atomic_read(attr), uint_val); | |
c6c8fea2 SE |
301 | |
302 | atomic_set(attr, uint_val); | |
303 | return count; | |
304 | } | |
305 | ||
0ff9b86f SE |
306 | static inline ssize_t |
307 | __batadv_store_uint_attr(const char *buff, size_t count, | |
308 | int min, int max, | |
309 | void (*post_func)(struct net_device *), | |
310 | const struct attribute *attr, | |
311 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 SE |
312 | { |
313 | int ret; | |
314 | ||
0ff9b86f SE |
315 | ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max, |
316 | attr_store); | |
c6c8fea2 SE |
317 | if (post_func && ret) |
318 | post_func(net_dev); | |
319 | ||
320 | return ret; | |
321 | } | |
322 | ||
0ff9b86f SE |
323 | static ssize_t batadv_show_bat_algo(struct kobject *kobj, |
324 | struct attribute *attr, char *buff) | |
ea3d2fd1 | 325 | { |
56303d34 | 326 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
ea3d2fd1 ML |
327 | return sprintf(buff, "%s\n", bat_priv->bat_algo_ops->name); |
328 | } | |
329 | ||
4e820e72 | 330 | static void batadv_post_gw_reselect(struct net_device *net_dev) |
c6c8fea2 | 331 | { |
56303d34 | 332 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
4e820e72 | 333 | batadv_gw_reselect(bat_priv); |
c6c8fea2 SE |
334 | } |
335 | ||
0ff9b86f SE |
336 | static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr, |
337 | char *buff) | |
c6c8fea2 | 338 | { |
56303d34 | 339 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
c6c8fea2 SE |
340 | int bytes_written; |
341 | ||
342 | switch (atomic_read(&bat_priv->gw_mode)) { | |
cd646ab1 | 343 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 SE |
344 | bytes_written = sprintf(buff, "%s\n", |
345 | BATADV_GW_MODE_CLIENT_NAME); | |
c6c8fea2 | 346 | break; |
cd646ab1 | 347 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 SE |
348 | bytes_written = sprintf(buff, "%s\n", |
349 | BATADV_GW_MODE_SERVER_NAME); | |
c6c8fea2 SE |
350 | break; |
351 | default: | |
97ea4ba1 SE |
352 | bytes_written = sprintf(buff, "%s\n", |
353 | BATADV_GW_MODE_OFF_NAME); | |
c6c8fea2 SE |
354 | break; |
355 | } | |
356 | ||
357 | return bytes_written; | |
358 | } | |
359 | ||
0ff9b86f SE |
360 | static ssize_t batadv_store_gw_mode(struct kobject *kobj, |
361 | struct attribute *attr, char *buff, | |
362 | size_t count) | |
c6c8fea2 | 363 | { |
0ff9b86f | 364 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 365 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
c6c8fea2 SE |
366 | char *curr_gw_mode_str; |
367 | int gw_mode_tmp = -1; | |
368 | ||
369 | if (buff[count - 1] == '\n') | |
370 | buff[count - 1] = '\0'; | |
371 | ||
97ea4ba1 SE |
372 | if (strncmp(buff, BATADV_GW_MODE_OFF_NAME, |
373 | strlen(BATADV_GW_MODE_OFF_NAME)) == 0) | |
cd646ab1 | 374 | gw_mode_tmp = BATADV_GW_MODE_OFF; |
c6c8fea2 | 375 | |
97ea4ba1 SE |
376 | if (strncmp(buff, BATADV_GW_MODE_CLIENT_NAME, |
377 | strlen(BATADV_GW_MODE_CLIENT_NAME)) == 0) | |
cd646ab1 | 378 | gw_mode_tmp = BATADV_GW_MODE_CLIENT; |
c6c8fea2 | 379 | |
97ea4ba1 SE |
380 | if (strncmp(buff, BATADV_GW_MODE_SERVER_NAME, |
381 | strlen(BATADV_GW_MODE_SERVER_NAME)) == 0) | |
cd646ab1 | 382 | gw_mode_tmp = BATADV_GW_MODE_SERVER; |
c6c8fea2 SE |
383 | |
384 | if (gw_mode_tmp < 0) { | |
3e34819e SE |
385 | batadv_info(net_dev, |
386 | "Invalid parameter for 'gw mode' setting received: %s\n", | |
387 | buff); | |
c6c8fea2 SE |
388 | return -EINVAL; |
389 | } | |
390 | ||
391 | if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp) | |
392 | return count; | |
393 | ||
394 | switch (atomic_read(&bat_priv->gw_mode)) { | |
cd646ab1 | 395 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 | 396 | curr_gw_mode_str = BATADV_GW_MODE_CLIENT_NAME; |
c6c8fea2 | 397 | break; |
cd646ab1 | 398 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 | 399 | curr_gw_mode_str = BATADV_GW_MODE_SERVER_NAME; |
c6c8fea2 SE |
400 | break; |
401 | default: | |
97ea4ba1 | 402 | curr_gw_mode_str = BATADV_GW_MODE_OFF_NAME; |
c6c8fea2 SE |
403 | break; |
404 | } | |
405 | ||
3e34819e SE |
406 | batadv_info(net_dev, "Changing gw mode from: %s to: %s\n", |
407 | curr_gw_mode_str, buff); | |
c6c8fea2 | 408 | |
f3163181 AQ |
409 | /* Invoking batadv_gw_reselect() is not enough to really de-select the |
410 | * current GW. It will only instruct the gateway client code to perform | |
411 | * a re-election the next time that this is needed. | |
412 | * | |
413 | * When gw client mode is being switched off the current GW must be | |
414 | * de-selected explicitly otherwise no GW_ADD uevent is thrown on | |
415 | * client mode re-activation. This is operation is performed in | |
416 | * batadv_gw_check_client_stop(). | |
417 | */ | |
4e820e72 | 418 | batadv_gw_reselect(bat_priv); |
c6eaa3f0 AQ |
419 | /* always call batadv_gw_check_client_stop() before changing the gateway |
420 | * state | |
421 | */ | |
422 | batadv_gw_check_client_stop(bat_priv); | |
95c96174 | 423 | atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp); |
414254e3 | 424 | batadv_gw_tvlv_container_update(bat_priv); |
c6c8fea2 SE |
425 | return count; |
426 | } | |
427 | ||
0ff9b86f SE |
428 | static ssize_t batadv_show_gw_bwidth(struct kobject *kobj, |
429 | struct attribute *attr, char *buff) | |
c6c8fea2 | 430 | { |
56303d34 | 431 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
414254e3 ML |
432 | uint32_t down, up; |
433 | ||
434 | down = atomic_read(&bat_priv->gw.bandwidth_down); | |
435 | up = atomic_read(&bat_priv->gw.bandwidth_up); | |
436 | ||
437 | return sprintf(buff, "%u.%u/%u.%u MBit\n", down / 10, | |
438 | down % 10, up / 10, up % 10); | |
c6c8fea2 SE |
439 | } |
440 | ||
0ff9b86f SE |
441 | static ssize_t batadv_store_gw_bwidth(struct kobject *kobj, |
442 | struct attribute *attr, char *buff, | |
443 | size_t count) | |
c6c8fea2 | 444 | { |
0ff9b86f | 445 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
c6c8fea2 SE |
446 | |
447 | if (buff[count - 1] == '\n') | |
448 | buff[count - 1] = '\0'; | |
449 | ||
84d5e5e0 | 450 | return batadv_gw_bandwidth_set(net_dev, buff, count); |
c6c8fea2 SE |
451 | } |
452 | ||
c42edfe3 AQ |
453 | /** |
454 | * batadv_show_isolation_mark - print the current isolation mark/mask | |
455 | * @kobj: kobject representing the private mesh sysfs directory | |
456 | * @attr: the batman-adv attribute the user is interacting with | |
457 | * @buff: the buffer that will contain the data to send back to the user | |
458 | * | |
459 | * Returns the number of bytes written into 'buff' on success or a negative | |
460 | * error code in case of failure | |
461 | */ | |
462 | static ssize_t batadv_show_isolation_mark(struct kobject *kobj, | |
463 | struct attribute *attr, char *buff) | |
464 | { | |
465 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); | |
466 | ||
467 | return sprintf(buff, "%#.8x/%#.8x\n", bat_priv->isolation_mark, | |
468 | bat_priv->isolation_mark_mask); | |
469 | } | |
470 | ||
471 | /** | |
472 | * batadv_store_isolation_mark - parse and store the isolation mark/mask entered | |
473 | * by the user | |
474 | * @kobj: kobject representing the private mesh sysfs directory | |
475 | * @attr: the batman-adv attribute the user is interacting with | |
476 | * @buff: the buffer containing the user data | |
477 | * @count: number of bytes in the buffer | |
478 | * | |
479 | * Returns 'count' on success or a negative error code in case of failure | |
480 | */ | |
481 | static ssize_t batadv_store_isolation_mark(struct kobject *kobj, | |
482 | struct attribute *attr, char *buff, | |
483 | size_t count) | |
484 | { | |
485 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); | |
486 | struct batadv_priv *bat_priv = netdev_priv(net_dev); | |
487 | uint32_t mark, mask; | |
488 | char *mask_ptr; | |
489 | ||
490 | /* parse the mask if it has been specified, otherwise assume the mask is | |
491 | * the biggest possible | |
492 | */ | |
493 | mask = 0xFFFFFFFF; | |
494 | mask_ptr = strchr(buff, '/'); | |
495 | if (mask_ptr) { | |
496 | *mask_ptr = '\0'; | |
497 | mask_ptr++; | |
498 | ||
499 | /* the mask must be entered in hex base as it is going to be a | |
500 | * bitmask and not a prefix length | |
501 | */ | |
502 | if (kstrtou32(mask_ptr, 16, &mask) < 0) | |
503 | return -EINVAL; | |
504 | } | |
505 | ||
506 | /* the mark can be entered in any base */ | |
507 | if (kstrtou32(buff, 0, &mark) < 0) | |
508 | return -EINVAL; | |
509 | ||
510 | bat_priv->isolation_mark_mask = mask; | |
511 | /* erase bits not covered by the mask */ | |
512 | bat_priv->isolation_mark = mark & bat_priv->isolation_mark_mask; | |
513 | ||
514 | batadv_info(net_dev, | |
515 | "New skb mark for extended isolation: %#.8x/%#.8x\n", | |
516 | bat_priv->isolation_mark, bat_priv->isolation_mark_mask); | |
517 | ||
518 | return count; | |
519 | } | |
520 | ||
347c80f0 SE |
521 | BATADV_ATTR_SIF_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL); |
522 | BATADV_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL); | |
7a5cc242 | 523 | #ifdef CONFIG_BATMAN_ADV_BLA |
347c80f0 | 524 | BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, NULL); |
7a5cc242 | 525 | #endif |
33af49ad | 526 | #ifdef CONFIG_BATMAN_ADV_DAT |
17cf0ea4 ML |
527 | BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, |
528 | batadv_dat_status_update); | |
33af49ad | 529 | #endif |
347c80f0 | 530 | BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu); |
347c80f0 SE |
531 | static BATADV_ATTR(routing_algo, S_IRUGO, batadv_show_bat_algo, NULL); |
532 | static BATADV_ATTR(gw_mode, S_IRUGO | S_IWUSR, batadv_show_gw_mode, | |
533 | batadv_store_gw_mode); | |
42d0b044 SE |
534 | BATADV_ATTR_SIF_UINT(orig_interval, S_IRUGO | S_IWUSR, 2 * BATADV_JITTER, |
535 | INT_MAX, NULL); | |
536 | BATADV_ATTR_SIF_UINT(hop_penalty, S_IRUGO | S_IWUSR, 0, BATADV_TQ_MAX_VALUE, | |
347c80f0 | 537 | NULL); |
42d0b044 | 538 | BATADV_ATTR_SIF_UINT(gw_sel_class, S_IRUGO | S_IWUSR, 1, BATADV_TQ_MAX_VALUE, |
4e820e72 | 539 | batadv_post_gw_reselect); |
347c80f0 SE |
540 | static BATADV_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, batadv_show_gw_bwidth, |
541 | batadv_store_gw_bwidth); | |
c6c8fea2 | 542 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
39c75a51 | 543 | BATADV_ATTR_SIF_UINT(log_level, S_IRUGO | S_IWUSR, 0, BATADV_DBG_ALL, NULL); |
c6c8fea2 | 544 | #endif |
d353d8d4 | 545 | #ifdef CONFIG_BATMAN_ADV_NC |
3f4841ff ML |
546 | BATADV_ATTR_SIF_BOOL(network_coding, S_IRUGO | S_IWUSR, |
547 | batadv_nc_status_update); | |
d353d8d4 | 548 | #endif |
c42edfe3 AQ |
549 | static BATADV_ATTR(isolation_mark, S_IRUGO | S_IWUSR, |
550 | batadv_show_isolation_mark, batadv_store_isolation_mark); | |
c6c8fea2 | 551 | |
b4d66b87 | 552 | static struct batadv_attribute *batadv_mesh_attrs[] = { |
0ff9b86f SE |
553 | &batadv_attr_aggregated_ogms, |
554 | &batadv_attr_bonding, | |
7a5cc242 | 555 | #ifdef CONFIG_BATMAN_ADV_BLA |
0ff9b86f | 556 | &batadv_attr_bridge_loop_avoidance, |
33af49ad AQ |
557 | #endif |
558 | #ifdef CONFIG_BATMAN_ADV_DAT | |
559 | &batadv_attr_distributed_arp_table, | |
7a5cc242 | 560 | #endif |
0ff9b86f | 561 | &batadv_attr_fragmentation, |
0ff9b86f SE |
562 | &batadv_attr_routing_algo, |
563 | &batadv_attr_gw_mode, | |
564 | &batadv_attr_orig_interval, | |
565 | &batadv_attr_hop_penalty, | |
566 | &batadv_attr_gw_sel_class, | |
567 | &batadv_attr_gw_bandwidth, | |
c6c8fea2 | 568 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
0ff9b86f | 569 | &batadv_attr_log_level, |
d353d8d4 MH |
570 | #endif |
571 | #ifdef CONFIG_BATMAN_ADV_NC | |
572 | &batadv_attr_network_coding, | |
c6c8fea2 | 573 | #endif |
c42edfe3 | 574 | &batadv_attr_isolation_mark, |
c6c8fea2 SE |
575 | NULL, |
576 | }; | |
577 | ||
b8cbd81d AQ |
578 | BATADV_ATTR_VLAN_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL); |
579 | ||
90f4435d AQ |
580 | /** |
581 | * batadv_vlan_attrs - array of vlan specific sysfs attributes | |
582 | */ | |
583 | static struct batadv_attribute *batadv_vlan_attrs[] = { | |
b8cbd81d | 584 | &batadv_attr_vlan_ap_isolation, |
90f4435d AQ |
585 | NULL, |
586 | }; | |
587 | ||
5853e22c | 588 | int batadv_sysfs_add_meshif(struct net_device *dev) |
c6c8fea2 SE |
589 | { |
590 | struct kobject *batif_kobject = &dev->dev.kobj; | |
56303d34 | 591 | struct batadv_priv *bat_priv = netdev_priv(dev); |
b4d66b87 | 592 | struct batadv_attribute **bat_attr; |
c6c8fea2 SE |
593 | int err; |
594 | ||
036cbfeb | 595 | bat_priv->mesh_obj = kobject_create_and_add(BATADV_SYSFS_IF_MESH_SUBDIR, |
c6c8fea2 SE |
596 | batif_kobject); |
597 | if (!bat_priv->mesh_obj) { | |
3e34819e | 598 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
036cbfeb | 599 | BATADV_SYSFS_IF_MESH_SUBDIR); |
c6c8fea2 SE |
600 | goto out; |
601 | } | |
602 | ||
0ff9b86f | 603 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) { |
c6c8fea2 SE |
604 | err = sysfs_create_file(bat_priv->mesh_obj, |
605 | &((*bat_attr)->attr)); | |
606 | if (err) { | |
3e34819e | 607 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
036cbfeb | 608 | dev->name, BATADV_SYSFS_IF_MESH_SUBDIR, |
3e34819e | 609 | ((*bat_attr)->attr).name); |
c6c8fea2 SE |
610 | goto rem_attr; |
611 | } | |
612 | } | |
613 | ||
614 | return 0; | |
615 | ||
616 | rem_attr: | |
0ff9b86f | 617 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
618 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
619 | ||
620 | kobject_put(bat_priv->mesh_obj); | |
621 | bat_priv->mesh_obj = NULL; | |
622 | out: | |
623 | return -ENOMEM; | |
624 | } | |
625 | ||
5853e22c | 626 | void batadv_sysfs_del_meshif(struct net_device *dev) |
c6c8fea2 | 627 | { |
56303d34 | 628 | struct batadv_priv *bat_priv = netdev_priv(dev); |
b4d66b87 | 629 | struct batadv_attribute **bat_attr; |
c6c8fea2 | 630 | |
0ff9b86f | 631 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
632 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
633 | ||
634 | kobject_put(bat_priv->mesh_obj); | |
635 | bat_priv->mesh_obj = NULL; | |
636 | } | |
637 | ||
90f4435d AQ |
638 | /** |
639 | * batadv_sysfs_add_vlan - add all the needed sysfs objects for the new vlan | |
640 | * @dev: netdev of the mesh interface | |
641 | * @vlan: private data of the newly added VLAN interface | |
642 | * | |
643 | * Returns 0 on success and -ENOMEM if any of the structure allocations fails. | |
644 | */ | |
645 | int batadv_sysfs_add_vlan(struct net_device *dev, | |
646 | struct batadv_softif_vlan *vlan) | |
647 | { | |
648 | char vlan_subdir[sizeof(BATADV_SYSFS_VLAN_SUBDIR_PREFIX) + 5]; | |
649 | struct batadv_priv *bat_priv = netdev_priv(dev); | |
650 | struct batadv_attribute **bat_attr; | |
651 | int err; | |
652 | ||
653 | if (vlan->vid & BATADV_VLAN_HAS_TAG) { | |
654 | sprintf(vlan_subdir, BATADV_SYSFS_VLAN_SUBDIR_PREFIX "%hu", | |
655 | vlan->vid & VLAN_VID_MASK); | |
656 | ||
657 | vlan->kobj = kobject_create_and_add(vlan_subdir, | |
658 | bat_priv->mesh_obj); | |
659 | if (!vlan->kobj) { | |
660 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", | |
661 | dev->name, vlan_subdir); | |
662 | goto out; | |
663 | } | |
664 | } else { | |
665 | /* the untagged LAN uses the root folder to store its "VLAN | |
666 | * specific attributes" | |
667 | */ | |
668 | vlan->kobj = bat_priv->mesh_obj; | |
669 | kobject_get(bat_priv->mesh_obj); | |
670 | } | |
671 | ||
672 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) { | |
673 | err = sysfs_create_file(vlan->kobj, | |
674 | &((*bat_attr)->attr)); | |
675 | if (err) { | |
676 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", | |
677 | dev->name, vlan_subdir, | |
678 | ((*bat_attr)->attr).name); | |
679 | goto rem_attr; | |
680 | } | |
681 | } | |
682 | ||
683 | return 0; | |
684 | ||
685 | rem_attr: | |
686 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) | |
687 | sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr)); | |
688 | ||
689 | kobject_put(vlan->kobj); | |
690 | vlan->kobj = NULL; | |
691 | out: | |
692 | return -ENOMEM; | |
693 | } | |
694 | ||
695 | /** | |
696 | * batadv_sysfs_del_vlan - remove all the sysfs objects for a given VLAN | |
697 | * @bat_priv: the bat priv with all the soft interface information | |
698 | * @vlan: the private data of the VLAN to destroy | |
699 | */ | |
700 | void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv, | |
701 | struct batadv_softif_vlan *vlan) | |
702 | { | |
703 | struct batadv_attribute **bat_attr; | |
704 | ||
705 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) | |
706 | sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr)); | |
707 | ||
708 | kobject_put(vlan->kobj); | |
709 | vlan->kobj = NULL; | |
710 | } | |
711 | ||
0ff9b86f SE |
712 | static ssize_t batadv_show_mesh_iface(struct kobject *kobj, |
713 | struct attribute *attr, char *buff) | |
c6c8fea2 | 714 | { |
0ff9b86f | 715 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 716 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 | 717 | ssize_t length; |
e9a4f295 | 718 | const char *ifname; |
c6c8fea2 | 719 | |
56303d34 | 720 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 721 | if (!hard_iface) |
c6c8fea2 SE |
722 | return 0; |
723 | ||
e9a4f295 SE |
724 | if (hard_iface->if_status == BATADV_IF_NOT_IN_USE) |
725 | ifname = "none"; | |
726 | else | |
727 | ifname = hard_iface->soft_iface->name; | |
728 | ||
729 | length = sprintf(buff, "%s\n", ifname); | |
c6c8fea2 | 730 | |
e5d89254 | 731 | batadv_hardif_free_ref(hard_iface); |
c6c8fea2 SE |
732 | |
733 | return length; | |
734 | } | |
735 | ||
0ff9b86f SE |
736 | static ssize_t batadv_store_mesh_iface(struct kobject *kobj, |
737 | struct attribute *attr, char *buff, | |
738 | size_t count) | |
c6c8fea2 | 739 | { |
0ff9b86f | 740 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 741 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 | 742 | int status_tmp = -1; |
ed75ccbe | 743 | int ret = count; |
c6c8fea2 | 744 | |
56303d34 | 745 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 746 | if (!hard_iface) |
c6c8fea2 SE |
747 | return count; |
748 | ||
749 | if (buff[count - 1] == '\n') | |
750 | buff[count - 1] = '\0'; | |
751 | ||
752 | if (strlen(buff) >= IFNAMSIZ) { | |
86ceb360 SE |
753 | pr_err("Invalid parameter for 'mesh_iface' setting received: interface name too long '%s'\n", |
754 | buff); | |
e5d89254 | 755 | batadv_hardif_free_ref(hard_iface); |
c6c8fea2 SE |
756 | return -EINVAL; |
757 | } | |
758 | ||
759 | if (strncmp(buff, "none", 4) == 0) | |
e9a4f295 | 760 | status_tmp = BATADV_IF_NOT_IN_USE; |
c6c8fea2 | 761 | else |
e9a4f295 | 762 | status_tmp = BATADV_IF_I_WANT_YOU; |
c6c8fea2 | 763 | |
e6c10f43 ML |
764 | if (hard_iface->if_status == status_tmp) |
765 | goto out; | |
766 | ||
767 | if ((hard_iface->soft_iface) && | |
768 | (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0)) | |
ed75ccbe | 769 | goto out; |
c6c8fea2 | 770 | |
ac16d148 | 771 | rtnl_lock(); |
3a4375a9 | 772 | |
e9a4f295 | 773 | if (status_tmp == BATADV_IF_NOT_IN_USE) { |
a15fd361 SE |
774 | batadv_hardif_disable_interface(hard_iface, |
775 | BATADV_IF_CLEANUP_AUTO); | |
3a4375a9 | 776 | goto unlock; |
c6c8fea2 SE |
777 | } |
778 | ||
779 | /* if the interface already is in use */ | |
e9a4f295 | 780 | if (hard_iface->if_status != BATADV_IF_NOT_IN_USE) |
a15fd361 SE |
781 | batadv_hardif_disable_interface(hard_iface, |
782 | BATADV_IF_CLEANUP_AUTO); | |
c6c8fea2 | 783 | |
9563877e | 784 | ret = batadv_hardif_enable_interface(hard_iface, buff); |
c6c8fea2 | 785 | |
3a4375a9 SE |
786 | unlock: |
787 | rtnl_unlock(); | |
ed75ccbe | 788 | out: |
e5d89254 | 789 | batadv_hardif_free_ref(hard_iface); |
c6c8fea2 SE |
790 | return ret; |
791 | } | |
792 | ||
0ff9b86f SE |
793 | static ssize_t batadv_show_iface_status(struct kobject *kobj, |
794 | struct attribute *attr, char *buff) | |
c6c8fea2 | 795 | { |
0ff9b86f | 796 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 797 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 SE |
798 | ssize_t length; |
799 | ||
56303d34 | 800 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 801 | if (!hard_iface) |
c6c8fea2 SE |
802 | return 0; |
803 | ||
e6c10f43 | 804 | switch (hard_iface->if_status) { |
e9a4f295 | 805 | case BATADV_IF_TO_BE_REMOVED: |
c6c8fea2 SE |
806 | length = sprintf(buff, "disabling\n"); |
807 | break; | |
e9a4f295 | 808 | case BATADV_IF_INACTIVE: |
c6c8fea2 SE |
809 | length = sprintf(buff, "inactive\n"); |
810 | break; | |
e9a4f295 | 811 | case BATADV_IF_ACTIVE: |
c6c8fea2 SE |
812 | length = sprintf(buff, "active\n"); |
813 | break; | |
e9a4f295 | 814 | case BATADV_IF_TO_BE_ACTIVATED: |
c6c8fea2 SE |
815 | length = sprintf(buff, "enabling\n"); |
816 | break; | |
e9a4f295 | 817 | case BATADV_IF_NOT_IN_USE: |
c6c8fea2 SE |
818 | default: |
819 | length = sprintf(buff, "not in use\n"); | |
820 | break; | |
821 | } | |
822 | ||
e5d89254 | 823 | batadv_hardif_free_ref(hard_iface); |
c6c8fea2 SE |
824 | |
825 | return length; | |
826 | } | |
827 | ||
347c80f0 SE |
828 | static BATADV_ATTR(mesh_iface, S_IRUGO | S_IWUSR, batadv_show_mesh_iface, |
829 | batadv_store_mesh_iface); | |
830 | static BATADV_ATTR(iface_status, S_IRUGO, batadv_show_iface_status, NULL); | |
c6c8fea2 | 831 | |
b4d66b87 | 832 | static struct batadv_attribute *batadv_batman_attrs[] = { |
0ff9b86f SE |
833 | &batadv_attr_mesh_iface, |
834 | &batadv_attr_iface_status, | |
c6c8fea2 SE |
835 | NULL, |
836 | }; | |
837 | ||
5853e22c | 838 | int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev) |
c6c8fea2 SE |
839 | { |
840 | struct kobject *hardif_kobject = &dev->dev.kobj; | |
b4d66b87 | 841 | struct batadv_attribute **bat_attr; |
c6c8fea2 SE |
842 | int err; |
843 | ||
036cbfeb SE |
844 | *hardif_obj = kobject_create_and_add(BATADV_SYSFS_IF_BAT_SUBDIR, |
845 | hardif_kobject); | |
c6c8fea2 SE |
846 | |
847 | if (!*hardif_obj) { | |
3e34819e | 848 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
036cbfeb | 849 | BATADV_SYSFS_IF_BAT_SUBDIR); |
c6c8fea2 SE |
850 | goto out; |
851 | } | |
852 | ||
0ff9b86f | 853 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) { |
c6c8fea2 SE |
854 | err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr)); |
855 | if (err) { | |
3e34819e | 856 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
036cbfeb | 857 | dev->name, BATADV_SYSFS_IF_BAT_SUBDIR, |
3e34819e | 858 | ((*bat_attr)->attr).name); |
c6c8fea2 SE |
859 | goto rem_attr; |
860 | } | |
861 | } | |
862 | ||
863 | return 0; | |
864 | ||
865 | rem_attr: | |
0ff9b86f | 866 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
867 | sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr)); |
868 | out: | |
869 | return -ENOMEM; | |
870 | } | |
871 | ||
5853e22c | 872 | void batadv_sysfs_del_hardif(struct kobject **hardif_obj) |
c6c8fea2 SE |
873 | { |
874 | kobject_put(*hardif_obj); | |
875 | *hardif_obj = NULL; | |
876 | } | |
c6bda689 | 877 | |
56303d34 | 878 | int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type, |
39c75a51 | 879 | enum batadv_uev_action action, const char *data) |
c6bda689 | 880 | { |
5346c35e | 881 | int ret = -ENOMEM; |
c6bda689 AQ |
882 | struct kobject *bat_kobj; |
883 | char *uevent_env[4] = { NULL, NULL, NULL, NULL }; | |
884 | ||
736292c2 | 885 | bat_kobj = &bat_priv->soft_iface->dev.kobj; |
c6bda689 | 886 | |
347c80f0 | 887 | uevent_env[0] = kmalloc(strlen(BATADV_UEV_TYPE_VAR) + |
0ff9b86f | 888 | strlen(batadv_uev_type_str[type]) + 1, |
c6bda689 AQ |
889 | GFP_ATOMIC); |
890 | if (!uevent_env[0]) | |
891 | goto out; | |
892 | ||
347c80f0 SE |
893 | sprintf(uevent_env[0], "%s%s", BATADV_UEV_TYPE_VAR, |
894 | batadv_uev_type_str[type]); | |
c6bda689 | 895 | |
347c80f0 | 896 | uevent_env[1] = kmalloc(strlen(BATADV_UEV_ACTION_VAR) + |
0ff9b86f | 897 | strlen(batadv_uev_action_str[action]) + 1, |
c6bda689 AQ |
898 | GFP_ATOMIC); |
899 | if (!uevent_env[1]) | |
900 | goto out; | |
901 | ||
347c80f0 | 902 | sprintf(uevent_env[1], "%s%s", BATADV_UEV_ACTION_VAR, |
0ff9b86f | 903 | batadv_uev_action_str[action]); |
c6bda689 AQ |
904 | |
905 | /* If the event is DEL, ignore the data field */ | |
39c75a51 | 906 | if (action != BATADV_UEV_DEL) { |
347c80f0 | 907 | uevent_env[2] = kmalloc(strlen(BATADV_UEV_DATA_VAR) + |
c6bda689 AQ |
908 | strlen(data) + 1, GFP_ATOMIC); |
909 | if (!uevent_env[2]) | |
910 | goto out; | |
911 | ||
347c80f0 | 912 | sprintf(uevent_env[2], "%s%s", BATADV_UEV_DATA_VAR, data); |
c6bda689 AQ |
913 | } |
914 | ||
915 | ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env); | |
916 | out: | |
917 | kfree(uevent_env[0]); | |
918 | kfree(uevent_env[1]); | |
919 | kfree(uevent_env[2]); | |
920 | ||
c6bda689 | 921 | if (ret) |
39c75a51 | 922 | batadv_dbg(BATADV_DBG_BATMAN, bat_priv, |
1eda58bf | 923 | "Impossible to send uevent for (%s,%s,%s) event (err: %d)\n", |
0ff9b86f SE |
924 | batadv_uev_type_str[type], |
925 | batadv_uev_action_str[action], | |
39c75a51 | 926 | (action == BATADV_UEV_DEL ? "NULL" : data), ret); |
c6bda689 AQ |
927 | return ret; |
928 | } |