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9f6446c7 | 1 | /* Copyright (C) 2010-2015 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> | |
28 | #include <linux/kernel.h> | |
29 | #include <linux/netdevice.h> | |
30 | #include <linux/printk.h> | |
31 | #include <linux/rculist.h> | |
32 | #include <linux/rcupdate.h> | |
33 | #include <linux/rtnetlink.h> | |
34 | #include <linux/slab.h> | |
35 | #include <linux/stat.h> | |
36 | #include <linux/stddef.h> | |
37 | #include <linux/string.h> | |
38 | #include <linux/stringify.h> | |
39 | ||
33af49ad | 40 | #include "distributed-arp-table.h" |
1e2c2a4f SE |
41 | #include "gateway_client.h" |
42 | #include "gateway_common.h" | |
d68081a2 | 43 | #include "bridge_loop_avoidance.h" |
c6c8fea2 | 44 | #include "hard-interface.h" |
1e2c2a4f SE |
45 | #include "network-coding.h" |
46 | #include "packet.h" | |
90f4435d | 47 | #include "soft-interface.h" |
c6c8fea2 | 48 | |
0ff9b86f | 49 | static struct net_device *batadv_kobj_to_netdev(struct kobject *obj) |
3d222bba SE |
50 | { |
51 | struct device *dev = container_of(obj->parent, struct device, kobj); | |
f138694b | 52 | |
3d222bba SE |
53 | return to_net_dev(dev); |
54 | } | |
55 | ||
56303d34 | 56 | static struct batadv_priv *batadv_kobj_to_batpriv(struct kobject *obj) |
3d222bba | 57 | { |
0ff9b86f | 58 | struct net_device *net_dev = batadv_kobj_to_netdev(obj); |
f138694b | 59 | |
3d222bba SE |
60 | return netdev_priv(net_dev); |
61 | } | |
c6c8fea2 | 62 | |
90f4435d AQ |
63 | /** |
64 | * batadv_vlan_kobj_to_batpriv - convert a vlan kobj in the associated batpriv | |
65 | * @obj: kobject to covert | |
66 | * | |
67 | * Returns the associated batadv_priv struct. | |
68 | */ | |
69 | static struct batadv_priv *batadv_vlan_kobj_to_batpriv(struct kobject *obj) | |
70 | { | |
71 | /* VLAN specific attributes are located in the root sysfs folder if they | |
72 | * refer to the untagged VLAN.. | |
73 | */ | |
74 | if (!strcmp(BATADV_SYSFS_IF_MESH_SUBDIR, obj->name)) | |
75 | return batadv_kobj_to_batpriv(obj); | |
76 | ||
77 | /* ..while the attributes for the tagged vlans are located in | |
78 | * the in the corresponding "vlan%VID" subfolder | |
79 | */ | |
80 | return batadv_kobj_to_batpriv(obj->parent); | |
81 | } | |
82 | ||
83 | /** | |
84 | * batadv_kobj_to_vlan - convert a kobj in the associated softif_vlan struct | |
85 | * @obj: kobject to covert | |
86 | * | |
87 | * Returns the associated softif_vlan struct if found, NULL otherwise. | |
88 | */ | |
89 | static struct batadv_softif_vlan * | |
90 | batadv_kobj_to_vlan(struct batadv_priv *bat_priv, struct kobject *obj) | |
91 | { | |
92 | struct batadv_softif_vlan *vlan_tmp, *vlan = NULL; | |
93 | ||
94 | rcu_read_lock(); | |
95 | hlist_for_each_entry_rcu(vlan_tmp, &bat_priv->softif_vlan_list, list) { | |
96 | if (vlan_tmp->kobj != obj) | |
97 | continue; | |
98 | ||
99 | if (!atomic_inc_not_zero(&vlan_tmp->refcount)) | |
100 | continue; | |
101 | ||
102 | vlan = vlan_tmp; | |
103 | break; | |
104 | } | |
105 | rcu_read_unlock(); | |
106 | ||
107 | return vlan; | |
108 | } | |
109 | ||
347c80f0 SE |
110 | #define BATADV_UEV_TYPE_VAR "BATTYPE=" |
111 | #define BATADV_UEV_ACTION_VAR "BATACTION=" | |
112 | #define BATADV_UEV_DATA_VAR "BATDATA=" | |
c6bda689 | 113 | |
0ff9b86f | 114 | static char *batadv_uev_action_str[] = { |
c6bda689 AQ |
115 | "add", |
116 | "del", | |
117 | "change" | |
118 | }; | |
119 | ||
0ff9b86f | 120 | static char *batadv_uev_type_str[] = { |
c6bda689 AQ |
121 | "gw" |
122 | }; | |
123 | ||
90f4435d AQ |
124 | /* Use this, if you have customized show and store functions for vlan attrs */ |
125 | #define BATADV_ATTR_VLAN(_name, _mode, _show, _store) \ | |
126 | struct batadv_attribute batadv_attr_vlan_##_name = { \ | |
127 | .attr = {.name = __stringify(_name), \ | |
128 | .mode = _mode }, \ | |
129 | .show = _show, \ | |
130 | .store = _store, \ | |
2b64df20 | 131 | } |
90f4435d | 132 | |
c6c8fea2 | 133 | /* Use this, if you have customized show and store functions */ |
347c80f0 | 134 | #define BATADV_ATTR(_name, _mode, _show, _store) \ |
b4d66b87 | 135 | struct batadv_attribute batadv_attr_##_name = { \ |
347c80f0 SE |
136 | .attr = {.name = __stringify(_name), \ |
137 | .mode = _mode }, \ | |
138 | .show = _show, \ | |
139 | .store = _store, \ | |
2b64df20 | 140 | } |
c6c8fea2 | 141 | |
347c80f0 | 142 | #define BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ |
0ff9b86f SE |
143 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
144 | struct attribute *attr, char *buff, \ | |
145 | size_t count) \ | |
c6c8fea2 | 146 | { \ |
0ff9b86f | 147 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 148 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
f138694b | 149 | \ |
0ff9b86f SE |
150 | return __batadv_store_bool_attr(buff, count, _post_func, attr, \ |
151 | &bat_priv->_name, net_dev); \ | |
c6c8fea2 SE |
152 | } |
153 | ||
347c80f0 | 154 | #define BATADV_ATTR_SIF_SHOW_BOOL(_name) \ |
0ff9b86f SE |
155 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
156 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 157 | { \ |
56303d34 | 158 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
f138694b | 159 | \ |
c6c8fea2 SE |
160 | return sprintf(buff, "%s\n", \ |
161 | atomic_read(&bat_priv->_name) == 0 ? \ | |
162 | "disabled" : "enabled"); \ | |
163 | } \ | |
164 | ||
f245c38b | 165 | /* Use this, if you are going to turn a [name] in the soft-interface |
9cfc7bd6 SE |
166 | * (bat_priv) on or off |
167 | */ | |
347c80f0 SE |
168 | #define BATADV_ATTR_SIF_BOOL(_name, _mode, _post_func) \ |
169 | static BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ | |
170 | static BATADV_ATTR_SIF_SHOW_BOOL(_name) \ | |
171 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ | |
172 | batadv_store_##_name) | |
c6c8fea2 | 173 | |
6f70eb75 | 174 | #define BATADV_ATTR_SIF_STORE_UINT(_name, _var, _min, _max, _post_func) \ |
0ff9b86f SE |
175 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
176 | struct attribute *attr, char *buff, \ | |
177 | size_t count) \ | |
c6c8fea2 | 178 | { \ |
0ff9b86f | 179 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 180 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
f138694b | 181 | \ |
0ff9b86f SE |
182 | return __batadv_store_uint_attr(buff, count, _min, _max, \ |
183 | _post_func, attr, \ | |
6f70eb75 | 184 | &bat_priv->_var, net_dev); \ |
c6c8fea2 SE |
185 | } |
186 | ||
6f70eb75 | 187 | #define BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \ |
0ff9b86f SE |
188 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
189 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 190 | { \ |
56303d34 | 191 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
f138694b | 192 | \ |
6f70eb75 | 193 | return sprintf(buff, "%i\n", atomic_read(&bat_priv->_var)); \ |
c6c8fea2 SE |
194 | } \ |
195 | ||
f245c38b | 196 | /* Use this, if you are going to set [name] in the soft-interface |
9cfc7bd6 SE |
197 | * (bat_priv) to an unsigned integer value |
198 | */ | |
6f70eb75 AQ |
199 | #define BATADV_ATTR_SIF_UINT(_name, _var, _mode, _min, _max, _post_func)\ |
200 | static BATADV_ATTR_SIF_STORE_UINT(_name, _var, _min, _max, _post_func)\ | |
201 | static BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \ | |
347c80f0 SE |
202 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ |
203 | batadv_store_##_name) | |
c6c8fea2 | 204 | |
90f4435d AQ |
205 | #define BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ |
206 | ssize_t batadv_store_vlan_##_name(struct kobject *kobj, \ | |
207 | struct attribute *attr, char *buff, \ | |
208 | size_t count) \ | |
209 | { \ | |
210 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
211 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
212 | kobj); \ | |
213 | size_t res = __batadv_store_bool_attr(buff, count, _post_func, \ | |
214 | attr, &vlan->_name, \ | |
215 | bat_priv->soft_iface); \ | |
f138694b | 216 | \ |
90f4435d AQ |
217 | batadv_softif_vlan_free_ref(vlan); \ |
218 | return res; \ | |
219 | } | |
220 | ||
221 | #define BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
222 | ssize_t batadv_show_vlan_##_name(struct kobject *kobj, \ | |
223 | struct attribute *attr, char *buff) \ | |
224 | { \ | |
225 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
226 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
227 | kobj); \ | |
228 | size_t res = sprintf(buff, "%s\n", \ | |
229 | atomic_read(&vlan->_name) == 0 ? \ | |
230 | "disabled" : "enabled"); \ | |
f138694b | 231 | \ |
90f4435d AQ |
232 | batadv_softif_vlan_free_ref(vlan); \ |
233 | return res; \ | |
234 | } | |
235 | ||
236 | /* Use this, if you are going to turn a [name] in the vlan struct on or off */ | |
237 | #define BATADV_ATTR_VLAN_BOOL(_name, _mode, _post_func) \ | |
238 | static BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ | |
239 | static BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
240 | static BATADV_ATTR_VLAN(_name, _mode, batadv_show_vlan_##_name, \ | |
241 | batadv_store_vlan_##_name) | |
c6c8fea2 | 242 | |
0ff9b86f SE |
243 | static int batadv_store_bool_attr(char *buff, size_t count, |
244 | struct net_device *net_dev, | |
9e728e84 SW |
245 | const char *attr_name, atomic_t *attr, |
246 | bool *changed) | |
c6c8fea2 SE |
247 | { |
248 | int enabled = -1; | |
249 | ||
9e728e84 SW |
250 | *changed = false; |
251 | ||
c6c8fea2 SE |
252 | if (buff[count - 1] == '\n') |
253 | buff[count - 1] = '\0'; | |
254 | ||
255 | if ((strncmp(buff, "1", 2) == 0) || | |
256 | (strncmp(buff, "enable", 7) == 0) || | |
257 | (strncmp(buff, "enabled", 8) == 0)) | |
258 | enabled = 1; | |
259 | ||
260 | if ((strncmp(buff, "0", 2) == 0) || | |
261 | (strncmp(buff, "disable", 8) == 0) || | |
262 | (strncmp(buff, "disabled", 9) == 0)) | |
263 | enabled = 0; | |
264 | ||
265 | if (enabled < 0) { | |
3e34819e SE |
266 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
267 | attr_name, buff); | |
c6c8fea2 SE |
268 | return -EINVAL; |
269 | } | |
270 | ||
271 | if (atomic_read(attr) == enabled) | |
272 | return count; | |
273 | ||
3e34819e SE |
274 | batadv_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name, |
275 | atomic_read(attr) == 1 ? "enabled" : "disabled", | |
276 | enabled == 1 ? "enabled" : "disabled"); | |
c6c8fea2 | 277 | |
9e728e84 SW |
278 | *changed = true; |
279 | ||
95c96174 | 280 | atomic_set(attr, (unsigned int)enabled); |
c6c8fea2 SE |
281 | return count; |
282 | } | |
283 | ||
0ff9b86f SE |
284 | static inline ssize_t |
285 | __batadv_store_bool_attr(char *buff, size_t count, | |
286 | void (*post_func)(struct net_device *), | |
287 | struct attribute *attr, | |
288 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 | 289 | { |
9e728e84 | 290 | bool changed; |
c6c8fea2 SE |
291 | int ret; |
292 | ||
0ff9b86f | 293 | ret = batadv_store_bool_attr(buff, count, net_dev, attr->name, |
9e728e84 SW |
294 | attr_store, &changed); |
295 | if (post_func && changed) | |
c6c8fea2 SE |
296 | post_func(net_dev); |
297 | ||
298 | return ret; | |
299 | } | |
300 | ||
0ff9b86f SE |
301 | static int batadv_store_uint_attr(const char *buff, size_t count, |
302 | struct net_device *net_dev, | |
303 | const char *attr_name, | |
304 | unsigned int min, unsigned int max, | |
305 | atomic_t *attr) | |
c6c8fea2 SE |
306 | { |
307 | unsigned long uint_val; | |
308 | int ret; | |
309 | ||
25a92b13 | 310 | ret = kstrtoul(buff, 10, &uint_val); |
c6c8fea2 | 311 | if (ret) { |
3e34819e SE |
312 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
313 | attr_name, buff); | |
c6c8fea2 SE |
314 | return -EINVAL; |
315 | } | |
316 | ||
317 | if (uint_val < min) { | |
3e34819e SE |
318 | batadv_info(net_dev, "%s: Value is too small: %lu min: %u\n", |
319 | attr_name, uint_val, min); | |
c6c8fea2 SE |
320 | return -EINVAL; |
321 | } | |
322 | ||
323 | if (uint_val > max) { | |
3e34819e SE |
324 | batadv_info(net_dev, "%s: Value is too big: %lu max: %u\n", |
325 | attr_name, uint_val, max); | |
c6c8fea2 SE |
326 | return -EINVAL; |
327 | } | |
328 | ||
329 | if (atomic_read(attr) == uint_val) | |
330 | return count; | |
331 | ||
3e34819e SE |
332 | batadv_info(net_dev, "%s: Changing from: %i to: %lu\n", |
333 | attr_name, atomic_read(attr), uint_val); | |
c6c8fea2 SE |
334 | |
335 | atomic_set(attr, uint_val); | |
336 | return count; | |
337 | } | |
338 | ||
0ff9b86f SE |
339 | static inline ssize_t |
340 | __batadv_store_uint_attr(const char *buff, size_t count, | |
341 | int min, int max, | |
342 | void (*post_func)(struct net_device *), | |
343 | const struct attribute *attr, | |
344 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 SE |
345 | { |
346 | int ret; | |
347 | ||
0ff9b86f SE |
348 | ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max, |
349 | attr_store); | |
c6c8fea2 SE |
350 | if (post_func && ret) |
351 | post_func(net_dev); | |
352 | ||
353 | return ret; | |
354 | } | |
355 | ||
0ff9b86f SE |
356 | static ssize_t batadv_show_bat_algo(struct kobject *kobj, |
357 | struct attribute *attr, char *buff) | |
ea3d2fd1 | 358 | { |
56303d34 | 359 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
f138694b | 360 | |
ea3d2fd1 ML |
361 | return sprintf(buff, "%s\n", bat_priv->bat_algo_ops->name); |
362 | } | |
363 | ||
4e820e72 | 364 | static void batadv_post_gw_reselect(struct net_device *net_dev) |
c6c8fea2 | 365 | { |
56303d34 | 366 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
f138694b | 367 | |
4e820e72 | 368 | batadv_gw_reselect(bat_priv); |
c6c8fea2 SE |
369 | } |
370 | ||
0ff9b86f SE |
371 | static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr, |
372 | char *buff) | |
c6c8fea2 | 373 | { |
56303d34 | 374 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
c6c8fea2 SE |
375 | int bytes_written; |
376 | ||
377 | switch (atomic_read(&bat_priv->gw_mode)) { | |
cd646ab1 | 378 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 SE |
379 | bytes_written = sprintf(buff, "%s\n", |
380 | BATADV_GW_MODE_CLIENT_NAME); | |
c6c8fea2 | 381 | break; |
cd646ab1 | 382 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 SE |
383 | bytes_written = sprintf(buff, "%s\n", |
384 | BATADV_GW_MODE_SERVER_NAME); | |
c6c8fea2 SE |
385 | break; |
386 | default: | |
97ea4ba1 SE |
387 | bytes_written = sprintf(buff, "%s\n", |
388 | BATADV_GW_MODE_OFF_NAME); | |
c6c8fea2 SE |
389 | break; |
390 | } | |
391 | ||
392 | return bytes_written; | |
393 | } | |
394 | ||
0ff9b86f SE |
395 | static ssize_t batadv_store_gw_mode(struct kobject *kobj, |
396 | struct attribute *attr, char *buff, | |
397 | size_t count) | |
c6c8fea2 | 398 | { |
0ff9b86f | 399 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 400 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
c6c8fea2 SE |
401 | char *curr_gw_mode_str; |
402 | int gw_mode_tmp = -1; | |
403 | ||
404 | if (buff[count - 1] == '\n') | |
405 | buff[count - 1] = '\0'; | |
406 | ||
97ea4ba1 SE |
407 | if (strncmp(buff, BATADV_GW_MODE_OFF_NAME, |
408 | strlen(BATADV_GW_MODE_OFF_NAME)) == 0) | |
cd646ab1 | 409 | gw_mode_tmp = BATADV_GW_MODE_OFF; |
c6c8fea2 | 410 | |
97ea4ba1 SE |
411 | if (strncmp(buff, BATADV_GW_MODE_CLIENT_NAME, |
412 | strlen(BATADV_GW_MODE_CLIENT_NAME)) == 0) | |
cd646ab1 | 413 | gw_mode_tmp = BATADV_GW_MODE_CLIENT; |
c6c8fea2 | 414 | |
97ea4ba1 SE |
415 | if (strncmp(buff, BATADV_GW_MODE_SERVER_NAME, |
416 | strlen(BATADV_GW_MODE_SERVER_NAME)) == 0) | |
cd646ab1 | 417 | gw_mode_tmp = BATADV_GW_MODE_SERVER; |
c6c8fea2 SE |
418 | |
419 | if (gw_mode_tmp < 0) { | |
3e34819e SE |
420 | batadv_info(net_dev, |
421 | "Invalid parameter for 'gw mode' setting received: %s\n", | |
422 | buff); | |
c6c8fea2 SE |
423 | return -EINVAL; |
424 | } | |
425 | ||
426 | if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp) | |
427 | return count; | |
428 | ||
429 | switch (atomic_read(&bat_priv->gw_mode)) { | |
cd646ab1 | 430 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 | 431 | curr_gw_mode_str = BATADV_GW_MODE_CLIENT_NAME; |
c6c8fea2 | 432 | break; |
cd646ab1 | 433 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 | 434 | curr_gw_mode_str = BATADV_GW_MODE_SERVER_NAME; |
c6c8fea2 SE |
435 | break; |
436 | default: | |
97ea4ba1 | 437 | curr_gw_mode_str = BATADV_GW_MODE_OFF_NAME; |
c6c8fea2 SE |
438 | break; |
439 | } | |
440 | ||
3e34819e SE |
441 | batadv_info(net_dev, "Changing gw mode from: %s to: %s\n", |
442 | curr_gw_mode_str, buff); | |
c6c8fea2 | 443 | |
f3163181 AQ |
444 | /* Invoking batadv_gw_reselect() is not enough to really de-select the |
445 | * current GW. It will only instruct the gateway client code to perform | |
446 | * a re-election the next time that this is needed. | |
447 | * | |
448 | * When gw client mode is being switched off the current GW must be | |
449 | * de-selected explicitly otherwise no GW_ADD uevent is thrown on | |
450 | * client mode re-activation. This is operation is performed in | |
451 | * batadv_gw_check_client_stop(). | |
452 | */ | |
4e820e72 | 453 | batadv_gw_reselect(bat_priv); |
c6eaa3f0 AQ |
454 | /* always call batadv_gw_check_client_stop() before changing the gateway |
455 | * state | |
456 | */ | |
457 | batadv_gw_check_client_stop(bat_priv); | |
95c96174 | 458 | atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp); |
414254e3 | 459 | batadv_gw_tvlv_container_update(bat_priv); |
c6c8fea2 SE |
460 | return count; |
461 | } | |
462 | ||
0ff9b86f SE |
463 | static ssize_t batadv_show_gw_bwidth(struct kobject *kobj, |
464 | struct attribute *attr, char *buff) | |
c6c8fea2 | 465 | { |
56303d34 | 466 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
6b5e971a | 467 | u32 down, up; |
414254e3 ML |
468 | |
469 | down = atomic_read(&bat_priv->gw.bandwidth_down); | |
470 | up = atomic_read(&bat_priv->gw.bandwidth_up); | |
471 | ||
472 | return sprintf(buff, "%u.%u/%u.%u MBit\n", down / 10, | |
473 | down % 10, up / 10, up % 10); | |
c6c8fea2 SE |
474 | } |
475 | ||
0ff9b86f SE |
476 | static ssize_t batadv_store_gw_bwidth(struct kobject *kobj, |
477 | struct attribute *attr, char *buff, | |
478 | size_t count) | |
c6c8fea2 | 479 | { |
0ff9b86f | 480 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
c6c8fea2 SE |
481 | |
482 | if (buff[count - 1] == '\n') | |
483 | buff[count - 1] = '\0'; | |
484 | ||
84d5e5e0 | 485 | return batadv_gw_bandwidth_set(net_dev, buff, count); |
c6c8fea2 SE |
486 | } |
487 | ||
c42edfe3 AQ |
488 | /** |
489 | * batadv_show_isolation_mark - print the current isolation mark/mask | |
490 | * @kobj: kobject representing the private mesh sysfs directory | |
491 | * @attr: the batman-adv attribute the user is interacting with | |
492 | * @buff: the buffer that will contain the data to send back to the user | |
493 | * | |
494 | * Returns the number of bytes written into 'buff' on success or a negative | |
495 | * error code in case of failure | |
496 | */ | |
497 | static ssize_t batadv_show_isolation_mark(struct kobject *kobj, | |
498 | struct attribute *attr, char *buff) | |
499 | { | |
500 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); | |
501 | ||
502 | return sprintf(buff, "%#.8x/%#.8x\n", bat_priv->isolation_mark, | |
503 | bat_priv->isolation_mark_mask); | |
504 | } | |
505 | ||
506 | /** | |
507 | * batadv_store_isolation_mark - parse and store the isolation mark/mask entered | |
508 | * by the user | |
509 | * @kobj: kobject representing the private mesh sysfs directory | |
510 | * @attr: the batman-adv attribute the user is interacting with | |
511 | * @buff: the buffer containing the user data | |
512 | * @count: number of bytes in the buffer | |
513 | * | |
514 | * Returns 'count' on success or a negative error code in case of failure | |
515 | */ | |
516 | static ssize_t batadv_store_isolation_mark(struct kobject *kobj, | |
517 | struct attribute *attr, char *buff, | |
518 | size_t count) | |
519 | { | |
520 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); | |
521 | struct batadv_priv *bat_priv = netdev_priv(net_dev); | |
6b5e971a | 522 | u32 mark, mask; |
c42edfe3 AQ |
523 | char *mask_ptr; |
524 | ||
525 | /* parse the mask if it has been specified, otherwise assume the mask is | |
526 | * the biggest possible | |
527 | */ | |
528 | mask = 0xFFFFFFFF; | |
529 | mask_ptr = strchr(buff, '/'); | |
530 | if (mask_ptr) { | |
531 | *mask_ptr = '\0'; | |
532 | mask_ptr++; | |
533 | ||
534 | /* the mask must be entered in hex base as it is going to be a | |
535 | * bitmask and not a prefix length | |
536 | */ | |
537 | if (kstrtou32(mask_ptr, 16, &mask) < 0) | |
538 | return -EINVAL; | |
539 | } | |
540 | ||
541 | /* the mark can be entered in any base */ | |
542 | if (kstrtou32(buff, 0, &mark) < 0) | |
543 | return -EINVAL; | |
544 | ||
545 | bat_priv->isolation_mark_mask = mask; | |
546 | /* erase bits not covered by the mask */ | |
547 | bat_priv->isolation_mark = mark & bat_priv->isolation_mark_mask; | |
548 | ||
549 | batadv_info(net_dev, | |
550 | "New skb mark for extended isolation: %#.8x/%#.8x\n", | |
551 | bat_priv->isolation_mark, bat_priv->isolation_mark_mask); | |
552 | ||
553 | return count; | |
554 | } | |
555 | ||
347c80f0 SE |
556 | BATADV_ATTR_SIF_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL); |
557 | BATADV_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL); | |
7a5cc242 | 558 | #ifdef CONFIG_BATMAN_ADV_BLA |
d68081a2 SW |
559 | BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, |
560 | batadv_bla_status_update); | |
7a5cc242 | 561 | #endif |
33af49ad | 562 | #ifdef CONFIG_BATMAN_ADV_DAT |
17cf0ea4 ML |
563 | BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, |
564 | batadv_dat_status_update); | |
33af49ad | 565 | #endif |
347c80f0 | 566 | BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu); |
347c80f0 SE |
567 | static BATADV_ATTR(routing_algo, S_IRUGO, batadv_show_bat_algo, NULL); |
568 | static BATADV_ATTR(gw_mode, S_IRUGO | S_IWUSR, batadv_show_gw_mode, | |
569 | batadv_store_gw_mode); | |
6f70eb75 AQ |
570 | BATADV_ATTR_SIF_UINT(orig_interval, orig_interval, S_IRUGO | S_IWUSR, |
571 | 2 * BATADV_JITTER, INT_MAX, NULL); | |
572 | BATADV_ATTR_SIF_UINT(hop_penalty, hop_penalty, S_IRUGO | S_IWUSR, 0, | |
573 | BATADV_TQ_MAX_VALUE, NULL); | |
574 | BATADV_ATTR_SIF_UINT(gw_sel_class, gw_sel_class, S_IRUGO | S_IWUSR, 1, | |
575 | BATADV_TQ_MAX_VALUE, batadv_post_gw_reselect); | |
347c80f0 SE |
576 | static BATADV_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, batadv_show_gw_bwidth, |
577 | batadv_store_gw_bwidth); | |
1d8ab8d3 LL |
578 | #ifdef CONFIG_BATMAN_ADV_MCAST |
579 | BATADV_ATTR_SIF_BOOL(multicast_mode, S_IRUGO | S_IWUSR, NULL); | |
580 | #endif | |
c6c8fea2 | 581 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
6f70eb75 AQ |
582 | BATADV_ATTR_SIF_UINT(log_level, log_level, S_IRUGO | S_IWUSR, 0, |
583 | BATADV_DBG_ALL, NULL); | |
c6c8fea2 | 584 | #endif |
d353d8d4 | 585 | #ifdef CONFIG_BATMAN_ADV_NC |
3f4841ff ML |
586 | BATADV_ATTR_SIF_BOOL(network_coding, S_IRUGO | S_IWUSR, |
587 | batadv_nc_status_update); | |
d353d8d4 | 588 | #endif |
c42edfe3 AQ |
589 | static BATADV_ATTR(isolation_mark, S_IRUGO | S_IWUSR, |
590 | batadv_show_isolation_mark, batadv_store_isolation_mark); | |
c6c8fea2 | 591 | |
b4d66b87 | 592 | static struct batadv_attribute *batadv_mesh_attrs[] = { |
0ff9b86f SE |
593 | &batadv_attr_aggregated_ogms, |
594 | &batadv_attr_bonding, | |
7a5cc242 | 595 | #ifdef CONFIG_BATMAN_ADV_BLA |
0ff9b86f | 596 | &batadv_attr_bridge_loop_avoidance, |
33af49ad AQ |
597 | #endif |
598 | #ifdef CONFIG_BATMAN_ADV_DAT | |
599 | &batadv_attr_distributed_arp_table, | |
1d8ab8d3 LL |
600 | #endif |
601 | #ifdef CONFIG_BATMAN_ADV_MCAST | |
602 | &batadv_attr_multicast_mode, | |
7a5cc242 | 603 | #endif |
0ff9b86f | 604 | &batadv_attr_fragmentation, |
0ff9b86f SE |
605 | &batadv_attr_routing_algo, |
606 | &batadv_attr_gw_mode, | |
607 | &batadv_attr_orig_interval, | |
608 | &batadv_attr_hop_penalty, | |
609 | &batadv_attr_gw_sel_class, | |
610 | &batadv_attr_gw_bandwidth, | |
c6c8fea2 | 611 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
0ff9b86f | 612 | &batadv_attr_log_level, |
d353d8d4 MH |
613 | #endif |
614 | #ifdef CONFIG_BATMAN_ADV_NC | |
615 | &batadv_attr_network_coding, | |
c6c8fea2 | 616 | #endif |
c42edfe3 | 617 | &batadv_attr_isolation_mark, |
c6c8fea2 SE |
618 | NULL, |
619 | }; | |
620 | ||
b8cbd81d AQ |
621 | BATADV_ATTR_VLAN_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL); |
622 | ||
90f4435d AQ |
623 | /** |
624 | * batadv_vlan_attrs - array of vlan specific sysfs attributes | |
625 | */ | |
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 | * | |
686 | * Returns 0 on success and -ENOMEM if any of the structure allocations fails. | |
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 | |
e5d89254 | 774 | batadv_hardif_free_ref(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); | |
e5d89254 | 798 | batadv_hardif_free_ref(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: |
e5d89254 | 832 | batadv_hardif_free_ref(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 | ||
e5d89254 | 866 | batadv_hardif_free_ref(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 | } |