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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 | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
17 | * 02110-1301, USA | |
c6c8fea2 SE |
18 | */ |
19 | ||
20 | #include "main.h" | |
b706b13b | 21 | #include "sysfs.h" |
c6c8fea2 | 22 | #include "translation-table.h" |
33af49ad | 23 | #include "distributed-arp-table.h" |
3f4841ff | 24 | #include "network-coding.h" |
c6c8fea2 SE |
25 | #include "originator.h" |
26 | #include "hard-interface.h" | |
90f4435d | 27 | #include "soft-interface.h" |
c6c8fea2 SE |
28 | #include "gateway_common.h" |
29 | #include "gateway_client.h" | |
c6c8fea2 | 30 | |
0ff9b86f | 31 | static struct net_device *batadv_kobj_to_netdev(struct kobject *obj) |
3d222bba SE |
32 | { |
33 | struct device *dev = container_of(obj->parent, struct device, kobj); | |
34 | return to_net_dev(dev); | |
35 | } | |
36 | ||
56303d34 | 37 | static struct batadv_priv *batadv_kobj_to_batpriv(struct kobject *obj) |
3d222bba | 38 | { |
0ff9b86f | 39 | struct net_device *net_dev = batadv_kobj_to_netdev(obj); |
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, \ | |
111 | }; | |
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, \ | |
c6c8fea2 SE |
120 | }; |
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); \ |
0ff9b86f SE |
129 | return __batadv_store_bool_attr(buff, count, _post_func, attr, \ |
130 | &bat_priv->_name, net_dev); \ | |
c6c8fea2 SE |
131 | } |
132 | ||
347c80f0 | 133 | #define BATADV_ATTR_SIF_SHOW_BOOL(_name) \ |
0ff9b86f SE |
134 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
135 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 136 | { \ |
56303d34 | 137 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
c6c8fea2 SE |
138 | return sprintf(buff, "%s\n", \ |
139 | atomic_read(&bat_priv->_name) == 0 ? \ | |
140 | "disabled" : "enabled"); \ | |
141 | } \ | |
142 | ||
f245c38b | 143 | /* Use this, if you are going to turn a [name] in the soft-interface |
9cfc7bd6 SE |
144 | * (bat_priv) on or off |
145 | */ | |
347c80f0 SE |
146 | #define BATADV_ATTR_SIF_BOOL(_name, _mode, _post_func) \ |
147 | static BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ | |
148 | static BATADV_ATTR_SIF_SHOW_BOOL(_name) \ | |
149 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ | |
150 | batadv_store_##_name) | |
c6c8fea2 SE |
151 | |
152 | ||
347c80f0 | 153 | #define BATADV_ATTR_SIF_STORE_UINT(_name, _min, _max, _post_func) \ |
0ff9b86f SE |
154 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
155 | struct attribute *attr, char *buff, \ | |
156 | size_t count) \ | |
c6c8fea2 | 157 | { \ |
0ff9b86f | 158 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 159 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
0ff9b86f SE |
160 | return __batadv_store_uint_attr(buff, count, _min, _max, \ |
161 | _post_func, attr, \ | |
162 | &bat_priv->_name, net_dev); \ | |
c6c8fea2 SE |
163 | } |
164 | ||
347c80f0 | 165 | #define BATADV_ATTR_SIF_SHOW_UINT(_name) \ |
0ff9b86f SE |
166 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
167 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 168 | { \ |
56303d34 | 169 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
c6c8fea2 SE |
170 | return sprintf(buff, "%i\n", atomic_read(&bat_priv->_name)); \ |
171 | } \ | |
172 | ||
f245c38b | 173 | /* Use this, if you are going to set [name] in the soft-interface |
9cfc7bd6 SE |
174 | * (bat_priv) to an unsigned integer value |
175 | */ | |
347c80f0 SE |
176 | #define BATADV_ATTR_SIF_UINT(_name, _mode, _min, _max, _post_func) \ |
177 | static BATADV_ATTR_SIF_STORE_UINT(_name, _min, _max, _post_func)\ | |
178 | static BATADV_ATTR_SIF_SHOW_UINT(_name) \ | |
179 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ | |
180 | batadv_store_##_name) | |
c6c8fea2 | 181 | |
90f4435d AQ |
182 | #define BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ |
183 | ssize_t batadv_store_vlan_##_name(struct kobject *kobj, \ | |
184 | struct attribute *attr, char *buff, \ | |
185 | size_t count) \ | |
186 | { \ | |
187 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
188 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
189 | kobj); \ | |
190 | size_t res = __batadv_store_bool_attr(buff, count, _post_func, \ | |
191 | attr, &vlan->_name, \ | |
192 | bat_priv->soft_iface); \ | |
193 | batadv_softif_vlan_free_ref(vlan); \ | |
194 | return res; \ | |
195 | } | |
196 | ||
197 | #define BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
198 | ssize_t batadv_show_vlan_##_name(struct kobject *kobj, \ | |
199 | struct attribute *attr, char *buff) \ | |
200 | { \ | |
201 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
202 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
203 | kobj); \ | |
204 | size_t res = sprintf(buff, "%s\n", \ | |
205 | atomic_read(&vlan->_name) == 0 ? \ | |
206 | "disabled" : "enabled"); \ | |
207 | batadv_softif_vlan_free_ref(vlan); \ | |
208 | return res; \ | |
209 | } | |
210 | ||
211 | /* Use this, if you are going to turn a [name] in the vlan struct on or off */ | |
212 | #define BATADV_ATTR_VLAN_BOOL(_name, _mode, _post_func) \ | |
213 | static BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ | |
214 | static BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
215 | static BATADV_ATTR_VLAN(_name, _mode, batadv_show_vlan_##_name, \ | |
216 | batadv_store_vlan_##_name) | |
c6c8fea2 | 217 | |
0ff9b86f SE |
218 | static int batadv_store_bool_attr(char *buff, size_t count, |
219 | struct net_device *net_dev, | |
220 | const char *attr_name, atomic_t *attr) | |
c6c8fea2 SE |
221 | { |
222 | int enabled = -1; | |
223 | ||
224 | if (buff[count - 1] == '\n') | |
225 | buff[count - 1] = '\0'; | |
226 | ||
227 | if ((strncmp(buff, "1", 2) == 0) || | |
228 | (strncmp(buff, "enable", 7) == 0) || | |
229 | (strncmp(buff, "enabled", 8) == 0)) | |
230 | enabled = 1; | |
231 | ||
232 | if ((strncmp(buff, "0", 2) == 0) || | |
233 | (strncmp(buff, "disable", 8) == 0) || | |
234 | (strncmp(buff, "disabled", 9) == 0)) | |
235 | enabled = 0; | |
236 | ||
237 | if (enabled < 0) { | |
3e34819e SE |
238 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
239 | attr_name, buff); | |
c6c8fea2 SE |
240 | return -EINVAL; |
241 | } | |
242 | ||
243 | if (atomic_read(attr) == enabled) | |
244 | return count; | |
245 | ||
3e34819e SE |
246 | batadv_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name, |
247 | atomic_read(attr) == 1 ? "enabled" : "disabled", | |
248 | enabled == 1 ? "enabled" : "disabled"); | |
c6c8fea2 | 249 | |
95c96174 | 250 | atomic_set(attr, (unsigned int)enabled); |
c6c8fea2 SE |
251 | return count; |
252 | } | |
253 | ||
0ff9b86f SE |
254 | static inline ssize_t |
255 | __batadv_store_bool_attr(char *buff, size_t count, | |
256 | void (*post_func)(struct net_device *), | |
257 | struct attribute *attr, | |
258 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 SE |
259 | { |
260 | int ret; | |
261 | ||
0ff9b86f SE |
262 | ret = batadv_store_bool_attr(buff, count, net_dev, attr->name, |
263 | attr_store); | |
c6c8fea2 SE |
264 | if (post_func && ret) |
265 | post_func(net_dev); | |
266 | ||
267 | return ret; | |
268 | } | |
269 | ||
0ff9b86f SE |
270 | static int batadv_store_uint_attr(const char *buff, size_t count, |
271 | struct net_device *net_dev, | |
272 | const char *attr_name, | |
273 | unsigned int min, unsigned int max, | |
274 | atomic_t *attr) | |
c6c8fea2 SE |
275 | { |
276 | unsigned long uint_val; | |
277 | int ret; | |
278 | ||
25a92b13 | 279 | ret = kstrtoul(buff, 10, &uint_val); |
c6c8fea2 | 280 | if (ret) { |
3e34819e SE |
281 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
282 | attr_name, buff); | |
c6c8fea2 SE |
283 | return -EINVAL; |
284 | } | |
285 | ||
286 | if (uint_val < min) { | |
3e34819e SE |
287 | batadv_info(net_dev, "%s: Value is too small: %lu min: %u\n", |
288 | attr_name, uint_val, min); | |
c6c8fea2 SE |
289 | return -EINVAL; |
290 | } | |
291 | ||
292 | if (uint_val > max) { | |
3e34819e SE |
293 | batadv_info(net_dev, "%s: Value is too big: %lu max: %u\n", |
294 | attr_name, uint_val, max); | |
c6c8fea2 SE |
295 | return -EINVAL; |
296 | } | |
297 | ||
298 | if (atomic_read(attr) == uint_val) | |
299 | return count; | |
300 | ||
3e34819e SE |
301 | batadv_info(net_dev, "%s: Changing from: %i to: %lu\n", |
302 | attr_name, atomic_read(attr), uint_val); | |
c6c8fea2 SE |
303 | |
304 | atomic_set(attr, uint_val); | |
305 | return count; | |
306 | } | |
307 | ||
0ff9b86f SE |
308 | static inline ssize_t |
309 | __batadv_store_uint_attr(const char *buff, size_t count, | |
310 | int min, int max, | |
311 | void (*post_func)(struct net_device *), | |
312 | const struct attribute *attr, | |
313 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 SE |
314 | { |
315 | int ret; | |
316 | ||
0ff9b86f SE |
317 | ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max, |
318 | attr_store); | |
c6c8fea2 SE |
319 | if (post_func && ret) |
320 | post_func(net_dev); | |
321 | ||
322 | return ret; | |
323 | } | |
324 | ||
0ff9b86f SE |
325 | static ssize_t batadv_show_bat_algo(struct kobject *kobj, |
326 | struct attribute *attr, char *buff) | |
ea3d2fd1 | 327 | { |
56303d34 | 328 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
ea3d2fd1 ML |
329 | return sprintf(buff, "%s\n", bat_priv->bat_algo_ops->name); |
330 | } | |
331 | ||
0ff9b86f | 332 | static void batadv_post_gw_deselect(struct net_device *net_dev) |
c6c8fea2 | 333 | { |
56303d34 | 334 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
7cf06bc6 | 335 | batadv_gw_deselect(bat_priv); |
c6c8fea2 SE |
336 | } |
337 | ||
0ff9b86f SE |
338 | static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr, |
339 | char *buff) | |
c6c8fea2 | 340 | { |
56303d34 | 341 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
c6c8fea2 SE |
342 | int bytes_written; |
343 | ||
344 | switch (atomic_read(&bat_priv->gw_mode)) { | |
cd646ab1 | 345 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 SE |
346 | bytes_written = sprintf(buff, "%s\n", |
347 | BATADV_GW_MODE_CLIENT_NAME); | |
c6c8fea2 | 348 | break; |
cd646ab1 | 349 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 SE |
350 | bytes_written = sprintf(buff, "%s\n", |
351 | BATADV_GW_MODE_SERVER_NAME); | |
c6c8fea2 SE |
352 | break; |
353 | default: | |
97ea4ba1 SE |
354 | bytes_written = sprintf(buff, "%s\n", |
355 | BATADV_GW_MODE_OFF_NAME); | |
c6c8fea2 SE |
356 | break; |
357 | } | |
358 | ||
359 | return bytes_written; | |
360 | } | |
361 | ||
0ff9b86f SE |
362 | static ssize_t batadv_store_gw_mode(struct kobject *kobj, |
363 | struct attribute *attr, char *buff, | |
364 | size_t count) | |
c6c8fea2 | 365 | { |
0ff9b86f | 366 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 367 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
c6c8fea2 SE |
368 | char *curr_gw_mode_str; |
369 | int gw_mode_tmp = -1; | |
370 | ||
371 | if (buff[count - 1] == '\n') | |
372 | buff[count - 1] = '\0'; | |
373 | ||
97ea4ba1 SE |
374 | if (strncmp(buff, BATADV_GW_MODE_OFF_NAME, |
375 | strlen(BATADV_GW_MODE_OFF_NAME)) == 0) | |
cd646ab1 | 376 | gw_mode_tmp = BATADV_GW_MODE_OFF; |
c6c8fea2 | 377 | |
97ea4ba1 SE |
378 | if (strncmp(buff, BATADV_GW_MODE_CLIENT_NAME, |
379 | strlen(BATADV_GW_MODE_CLIENT_NAME)) == 0) | |
cd646ab1 | 380 | gw_mode_tmp = BATADV_GW_MODE_CLIENT; |
c6c8fea2 | 381 | |
97ea4ba1 SE |
382 | if (strncmp(buff, BATADV_GW_MODE_SERVER_NAME, |
383 | strlen(BATADV_GW_MODE_SERVER_NAME)) == 0) | |
cd646ab1 | 384 | gw_mode_tmp = BATADV_GW_MODE_SERVER; |
c6c8fea2 SE |
385 | |
386 | if (gw_mode_tmp < 0) { | |
3e34819e SE |
387 | batadv_info(net_dev, |
388 | "Invalid parameter for 'gw mode' setting received: %s\n", | |
389 | buff); | |
c6c8fea2 SE |
390 | return -EINVAL; |
391 | } | |
392 | ||
393 | if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp) | |
394 | return count; | |
395 | ||
396 | switch (atomic_read(&bat_priv->gw_mode)) { | |
cd646ab1 | 397 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 | 398 | curr_gw_mode_str = BATADV_GW_MODE_CLIENT_NAME; |
c6c8fea2 | 399 | break; |
cd646ab1 | 400 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 | 401 | curr_gw_mode_str = BATADV_GW_MODE_SERVER_NAME; |
c6c8fea2 SE |
402 | break; |
403 | default: | |
97ea4ba1 | 404 | curr_gw_mode_str = BATADV_GW_MODE_OFF_NAME; |
c6c8fea2 SE |
405 | break; |
406 | } | |
407 | ||
3e34819e SE |
408 | batadv_info(net_dev, "Changing gw mode from: %s to: %s\n", |
409 | curr_gw_mode_str, buff); | |
c6c8fea2 | 410 | |
7cf06bc6 | 411 | batadv_gw_deselect(bat_priv); |
c6eaa3f0 AQ |
412 | /* always call batadv_gw_check_client_stop() before changing the gateway |
413 | * state | |
414 | */ | |
415 | batadv_gw_check_client_stop(bat_priv); | |
95c96174 | 416 | atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp); |
414254e3 | 417 | batadv_gw_tvlv_container_update(bat_priv); |
c6c8fea2 SE |
418 | return count; |
419 | } | |
420 | ||
0ff9b86f SE |
421 | static ssize_t batadv_show_gw_bwidth(struct kobject *kobj, |
422 | struct attribute *attr, char *buff) | |
c6c8fea2 | 423 | { |
56303d34 | 424 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
414254e3 ML |
425 | uint32_t down, up; |
426 | ||
427 | down = atomic_read(&bat_priv->gw.bandwidth_down); | |
428 | up = atomic_read(&bat_priv->gw.bandwidth_up); | |
429 | ||
430 | return sprintf(buff, "%u.%u/%u.%u MBit\n", down / 10, | |
431 | down % 10, up / 10, up % 10); | |
c6c8fea2 SE |
432 | } |
433 | ||
0ff9b86f SE |
434 | static ssize_t batadv_store_gw_bwidth(struct kobject *kobj, |
435 | struct attribute *attr, char *buff, | |
436 | size_t count) | |
c6c8fea2 | 437 | { |
0ff9b86f | 438 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
c6c8fea2 SE |
439 | |
440 | if (buff[count - 1] == '\n') | |
441 | buff[count - 1] = '\0'; | |
442 | ||
84d5e5e0 | 443 | return batadv_gw_bandwidth_set(net_dev, buff, count); |
c6c8fea2 SE |
444 | } |
445 | ||
347c80f0 SE |
446 | BATADV_ATTR_SIF_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL); |
447 | BATADV_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL); | |
7a5cc242 | 448 | #ifdef CONFIG_BATMAN_ADV_BLA |
347c80f0 | 449 | BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, NULL); |
7a5cc242 | 450 | #endif |
33af49ad | 451 | #ifdef CONFIG_BATMAN_ADV_DAT |
17cf0ea4 ML |
452 | BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, |
453 | batadv_dat_status_update); | |
33af49ad | 454 | #endif |
347c80f0 | 455 | BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu); |
347c80f0 SE |
456 | static BATADV_ATTR(routing_algo, S_IRUGO, batadv_show_bat_algo, NULL); |
457 | static BATADV_ATTR(gw_mode, S_IRUGO | S_IWUSR, batadv_show_gw_mode, | |
458 | batadv_store_gw_mode); | |
42d0b044 SE |
459 | BATADV_ATTR_SIF_UINT(orig_interval, S_IRUGO | S_IWUSR, 2 * BATADV_JITTER, |
460 | INT_MAX, NULL); | |
461 | BATADV_ATTR_SIF_UINT(hop_penalty, S_IRUGO | S_IWUSR, 0, BATADV_TQ_MAX_VALUE, | |
347c80f0 | 462 | NULL); |
42d0b044 | 463 | BATADV_ATTR_SIF_UINT(gw_sel_class, S_IRUGO | S_IWUSR, 1, BATADV_TQ_MAX_VALUE, |
347c80f0 SE |
464 | batadv_post_gw_deselect); |
465 | static BATADV_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, batadv_show_gw_bwidth, | |
466 | batadv_store_gw_bwidth); | |
c6c8fea2 | 467 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
39c75a51 | 468 | BATADV_ATTR_SIF_UINT(log_level, S_IRUGO | S_IWUSR, 0, BATADV_DBG_ALL, NULL); |
c6c8fea2 | 469 | #endif |
d353d8d4 | 470 | #ifdef CONFIG_BATMAN_ADV_NC |
3f4841ff ML |
471 | BATADV_ATTR_SIF_BOOL(network_coding, S_IRUGO | S_IWUSR, |
472 | batadv_nc_status_update); | |
d353d8d4 | 473 | #endif |
c6c8fea2 | 474 | |
b4d66b87 | 475 | static struct batadv_attribute *batadv_mesh_attrs[] = { |
0ff9b86f SE |
476 | &batadv_attr_aggregated_ogms, |
477 | &batadv_attr_bonding, | |
7a5cc242 | 478 | #ifdef CONFIG_BATMAN_ADV_BLA |
0ff9b86f | 479 | &batadv_attr_bridge_loop_avoidance, |
33af49ad AQ |
480 | #endif |
481 | #ifdef CONFIG_BATMAN_ADV_DAT | |
482 | &batadv_attr_distributed_arp_table, | |
7a5cc242 | 483 | #endif |
0ff9b86f | 484 | &batadv_attr_fragmentation, |
0ff9b86f SE |
485 | &batadv_attr_routing_algo, |
486 | &batadv_attr_gw_mode, | |
487 | &batadv_attr_orig_interval, | |
488 | &batadv_attr_hop_penalty, | |
489 | &batadv_attr_gw_sel_class, | |
490 | &batadv_attr_gw_bandwidth, | |
c6c8fea2 | 491 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
0ff9b86f | 492 | &batadv_attr_log_level, |
d353d8d4 MH |
493 | #endif |
494 | #ifdef CONFIG_BATMAN_ADV_NC | |
495 | &batadv_attr_network_coding, | |
c6c8fea2 SE |
496 | #endif |
497 | NULL, | |
498 | }; | |
499 | ||
b8cbd81d AQ |
500 | BATADV_ATTR_VLAN_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL); |
501 | ||
90f4435d AQ |
502 | /** |
503 | * batadv_vlan_attrs - array of vlan specific sysfs attributes | |
504 | */ | |
505 | static struct batadv_attribute *batadv_vlan_attrs[] = { | |
b8cbd81d | 506 | &batadv_attr_vlan_ap_isolation, |
90f4435d AQ |
507 | NULL, |
508 | }; | |
509 | ||
5853e22c | 510 | int batadv_sysfs_add_meshif(struct net_device *dev) |
c6c8fea2 SE |
511 | { |
512 | struct kobject *batif_kobject = &dev->dev.kobj; | |
56303d34 | 513 | struct batadv_priv *bat_priv = netdev_priv(dev); |
b4d66b87 | 514 | struct batadv_attribute **bat_attr; |
c6c8fea2 SE |
515 | int err; |
516 | ||
036cbfeb | 517 | bat_priv->mesh_obj = kobject_create_and_add(BATADV_SYSFS_IF_MESH_SUBDIR, |
c6c8fea2 SE |
518 | batif_kobject); |
519 | if (!bat_priv->mesh_obj) { | |
3e34819e | 520 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
036cbfeb | 521 | BATADV_SYSFS_IF_MESH_SUBDIR); |
c6c8fea2 SE |
522 | goto out; |
523 | } | |
524 | ||
0ff9b86f | 525 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) { |
c6c8fea2 SE |
526 | err = sysfs_create_file(bat_priv->mesh_obj, |
527 | &((*bat_attr)->attr)); | |
528 | if (err) { | |
3e34819e | 529 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
036cbfeb | 530 | dev->name, BATADV_SYSFS_IF_MESH_SUBDIR, |
3e34819e | 531 | ((*bat_attr)->attr).name); |
c6c8fea2 SE |
532 | goto rem_attr; |
533 | } | |
534 | } | |
535 | ||
536 | return 0; | |
537 | ||
538 | rem_attr: | |
0ff9b86f | 539 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
540 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
541 | ||
542 | kobject_put(bat_priv->mesh_obj); | |
543 | bat_priv->mesh_obj = NULL; | |
544 | out: | |
545 | return -ENOMEM; | |
546 | } | |
547 | ||
5853e22c | 548 | void batadv_sysfs_del_meshif(struct net_device *dev) |
c6c8fea2 | 549 | { |
56303d34 | 550 | struct batadv_priv *bat_priv = netdev_priv(dev); |
b4d66b87 | 551 | struct batadv_attribute **bat_attr; |
c6c8fea2 | 552 | |
0ff9b86f | 553 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
554 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
555 | ||
556 | kobject_put(bat_priv->mesh_obj); | |
557 | bat_priv->mesh_obj = NULL; | |
558 | } | |
559 | ||
90f4435d AQ |
560 | /** |
561 | * batadv_sysfs_add_vlan - add all the needed sysfs objects for the new vlan | |
562 | * @dev: netdev of the mesh interface | |
563 | * @vlan: private data of the newly added VLAN interface | |
564 | * | |
565 | * Returns 0 on success and -ENOMEM if any of the structure allocations fails. | |
566 | */ | |
567 | int batadv_sysfs_add_vlan(struct net_device *dev, | |
568 | struct batadv_softif_vlan *vlan) | |
569 | { | |
570 | char vlan_subdir[sizeof(BATADV_SYSFS_VLAN_SUBDIR_PREFIX) + 5]; | |
571 | struct batadv_priv *bat_priv = netdev_priv(dev); | |
572 | struct batadv_attribute **bat_attr; | |
573 | int err; | |
574 | ||
575 | if (vlan->vid & BATADV_VLAN_HAS_TAG) { | |
576 | sprintf(vlan_subdir, BATADV_SYSFS_VLAN_SUBDIR_PREFIX "%hu", | |
577 | vlan->vid & VLAN_VID_MASK); | |
578 | ||
579 | vlan->kobj = kobject_create_and_add(vlan_subdir, | |
580 | bat_priv->mesh_obj); | |
581 | if (!vlan->kobj) { | |
582 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", | |
583 | dev->name, vlan_subdir); | |
584 | goto out; | |
585 | } | |
586 | } else { | |
587 | /* the untagged LAN uses the root folder to store its "VLAN | |
588 | * specific attributes" | |
589 | */ | |
590 | vlan->kobj = bat_priv->mesh_obj; | |
591 | kobject_get(bat_priv->mesh_obj); | |
592 | } | |
593 | ||
594 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) { | |
595 | err = sysfs_create_file(vlan->kobj, | |
596 | &((*bat_attr)->attr)); | |
597 | if (err) { | |
598 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", | |
599 | dev->name, vlan_subdir, | |
600 | ((*bat_attr)->attr).name); | |
601 | goto rem_attr; | |
602 | } | |
603 | } | |
604 | ||
605 | return 0; | |
606 | ||
607 | rem_attr: | |
608 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) | |
609 | sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr)); | |
610 | ||
611 | kobject_put(vlan->kobj); | |
612 | vlan->kobj = NULL; | |
613 | out: | |
614 | return -ENOMEM; | |
615 | } | |
616 | ||
617 | /** | |
618 | * batadv_sysfs_del_vlan - remove all the sysfs objects for a given VLAN | |
619 | * @bat_priv: the bat priv with all the soft interface information | |
620 | * @vlan: the private data of the VLAN to destroy | |
621 | */ | |
622 | void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv, | |
623 | struct batadv_softif_vlan *vlan) | |
624 | { | |
625 | struct batadv_attribute **bat_attr; | |
626 | ||
627 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) | |
628 | sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr)); | |
629 | ||
630 | kobject_put(vlan->kobj); | |
631 | vlan->kobj = NULL; | |
632 | } | |
633 | ||
0ff9b86f SE |
634 | static ssize_t batadv_show_mesh_iface(struct kobject *kobj, |
635 | struct attribute *attr, char *buff) | |
c6c8fea2 | 636 | { |
0ff9b86f | 637 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 638 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 | 639 | ssize_t length; |
e9a4f295 | 640 | const char *ifname; |
c6c8fea2 | 641 | |
56303d34 | 642 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 643 | if (!hard_iface) |
c6c8fea2 SE |
644 | return 0; |
645 | ||
e9a4f295 SE |
646 | if (hard_iface->if_status == BATADV_IF_NOT_IN_USE) |
647 | ifname = "none"; | |
648 | else | |
649 | ifname = hard_iface->soft_iface->name; | |
650 | ||
651 | length = sprintf(buff, "%s\n", ifname); | |
c6c8fea2 | 652 | |
e5d89254 | 653 | batadv_hardif_free_ref(hard_iface); |
c6c8fea2 SE |
654 | |
655 | return length; | |
656 | } | |
657 | ||
0ff9b86f SE |
658 | static ssize_t batadv_store_mesh_iface(struct kobject *kobj, |
659 | struct attribute *attr, char *buff, | |
660 | size_t count) | |
c6c8fea2 | 661 | { |
0ff9b86f | 662 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 663 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 | 664 | int status_tmp = -1; |
ed75ccbe | 665 | int ret = count; |
c6c8fea2 | 666 | |
56303d34 | 667 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 668 | if (!hard_iface) |
c6c8fea2 SE |
669 | return count; |
670 | ||
671 | if (buff[count - 1] == '\n') | |
672 | buff[count - 1] = '\0'; | |
673 | ||
674 | if (strlen(buff) >= IFNAMSIZ) { | |
86ceb360 SE |
675 | pr_err("Invalid parameter for 'mesh_iface' setting received: interface name too long '%s'\n", |
676 | buff); | |
e5d89254 | 677 | batadv_hardif_free_ref(hard_iface); |
c6c8fea2 SE |
678 | return -EINVAL; |
679 | } | |
680 | ||
681 | if (strncmp(buff, "none", 4) == 0) | |
e9a4f295 | 682 | status_tmp = BATADV_IF_NOT_IN_USE; |
c6c8fea2 | 683 | else |
e9a4f295 | 684 | status_tmp = BATADV_IF_I_WANT_YOU; |
c6c8fea2 | 685 | |
e6c10f43 ML |
686 | if (hard_iface->if_status == status_tmp) |
687 | goto out; | |
688 | ||
689 | if ((hard_iface->soft_iface) && | |
690 | (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0)) | |
ed75ccbe | 691 | goto out; |
c6c8fea2 | 692 | |
ac16d148 | 693 | rtnl_lock(); |
3a4375a9 | 694 | |
e9a4f295 | 695 | if (status_tmp == BATADV_IF_NOT_IN_USE) { |
a15fd361 SE |
696 | batadv_hardif_disable_interface(hard_iface, |
697 | BATADV_IF_CLEANUP_AUTO); | |
3a4375a9 | 698 | goto unlock; |
c6c8fea2 SE |
699 | } |
700 | ||
701 | /* if the interface already is in use */ | |
e9a4f295 | 702 | if (hard_iface->if_status != BATADV_IF_NOT_IN_USE) |
a15fd361 SE |
703 | batadv_hardif_disable_interface(hard_iface, |
704 | BATADV_IF_CLEANUP_AUTO); | |
c6c8fea2 | 705 | |
9563877e | 706 | ret = batadv_hardif_enable_interface(hard_iface, buff); |
c6c8fea2 | 707 | |
3a4375a9 SE |
708 | unlock: |
709 | rtnl_unlock(); | |
ed75ccbe | 710 | out: |
e5d89254 | 711 | batadv_hardif_free_ref(hard_iface); |
c6c8fea2 SE |
712 | return ret; |
713 | } | |
714 | ||
0ff9b86f SE |
715 | static ssize_t batadv_show_iface_status(struct kobject *kobj, |
716 | struct attribute *attr, char *buff) | |
c6c8fea2 | 717 | { |
0ff9b86f | 718 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 719 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 SE |
720 | ssize_t length; |
721 | ||
56303d34 | 722 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 723 | if (!hard_iface) |
c6c8fea2 SE |
724 | return 0; |
725 | ||
e6c10f43 | 726 | switch (hard_iface->if_status) { |
e9a4f295 | 727 | case BATADV_IF_TO_BE_REMOVED: |
c6c8fea2 SE |
728 | length = sprintf(buff, "disabling\n"); |
729 | break; | |
e9a4f295 | 730 | case BATADV_IF_INACTIVE: |
c6c8fea2 SE |
731 | length = sprintf(buff, "inactive\n"); |
732 | break; | |
e9a4f295 | 733 | case BATADV_IF_ACTIVE: |
c6c8fea2 SE |
734 | length = sprintf(buff, "active\n"); |
735 | break; | |
e9a4f295 | 736 | case BATADV_IF_TO_BE_ACTIVATED: |
c6c8fea2 SE |
737 | length = sprintf(buff, "enabling\n"); |
738 | break; | |
e9a4f295 | 739 | case BATADV_IF_NOT_IN_USE: |
c6c8fea2 SE |
740 | default: |
741 | length = sprintf(buff, "not in use\n"); | |
742 | break; | |
743 | } | |
744 | ||
e5d89254 | 745 | batadv_hardif_free_ref(hard_iface); |
c6c8fea2 SE |
746 | |
747 | return length; | |
748 | } | |
749 | ||
347c80f0 SE |
750 | static BATADV_ATTR(mesh_iface, S_IRUGO | S_IWUSR, batadv_show_mesh_iface, |
751 | batadv_store_mesh_iface); | |
752 | static BATADV_ATTR(iface_status, S_IRUGO, batadv_show_iface_status, NULL); | |
c6c8fea2 | 753 | |
b4d66b87 | 754 | static struct batadv_attribute *batadv_batman_attrs[] = { |
0ff9b86f SE |
755 | &batadv_attr_mesh_iface, |
756 | &batadv_attr_iface_status, | |
c6c8fea2 SE |
757 | NULL, |
758 | }; | |
759 | ||
5853e22c | 760 | int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev) |
c6c8fea2 SE |
761 | { |
762 | struct kobject *hardif_kobject = &dev->dev.kobj; | |
b4d66b87 | 763 | struct batadv_attribute **bat_attr; |
c6c8fea2 SE |
764 | int err; |
765 | ||
036cbfeb SE |
766 | *hardif_obj = kobject_create_and_add(BATADV_SYSFS_IF_BAT_SUBDIR, |
767 | hardif_kobject); | |
c6c8fea2 SE |
768 | |
769 | if (!*hardif_obj) { | |
3e34819e | 770 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
036cbfeb | 771 | BATADV_SYSFS_IF_BAT_SUBDIR); |
c6c8fea2 SE |
772 | goto out; |
773 | } | |
774 | ||
0ff9b86f | 775 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) { |
c6c8fea2 SE |
776 | err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr)); |
777 | if (err) { | |
3e34819e | 778 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
036cbfeb | 779 | dev->name, BATADV_SYSFS_IF_BAT_SUBDIR, |
3e34819e | 780 | ((*bat_attr)->attr).name); |
c6c8fea2 SE |
781 | goto rem_attr; |
782 | } | |
783 | } | |
784 | ||
785 | return 0; | |
786 | ||
787 | rem_attr: | |
0ff9b86f | 788 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
789 | sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr)); |
790 | out: | |
791 | return -ENOMEM; | |
792 | } | |
793 | ||
5853e22c | 794 | void batadv_sysfs_del_hardif(struct kobject **hardif_obj) |
c6c8fea2 SE |
795 | { |
796 | kobject_put(*hardif_obj); | |
797 | *hardif_obj = NULL; | |
798 | } | |
c6bda689 | 799 | |
56303d34 | 800 | int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type, |
39c75a51 | 801 | enum batadv_uev_action action, const char *data) |
c6bda689 | 802 | { |
5346c35e | 803 | int ret = -ENOMEM; |
c6bda689 AQ |
804 | struct kobject *bat_kobj; |
805 | char *uevent_env[4] = { NULL, NULL, NULL, NULL }; | |
806 | ||
736292c2 | 807 | bat_kobj = &bat_priv->soft_iface->dev.kobj; |
c6bda689 | 808 | |
347c80f0 | 809 | uevent_env[0] = kmalloc(strlen(BATADV_UEV_TYPE_VAR) + |
0ff9b86f | 810 | strlen(batadv_uev_type_str[type]) + 1, |
c6bda689 AQ |
811 | GFP_ATOMIC); |
812 | if (!uevent_env[0]) | |
813 | goto out; | |
814 | ||
347c80f0 SE |
815 | sprintf(uevent_env[0], "%s%s", BATADV_UEV_TYPE_VAR, |
816 | batadv_uev_type_str[type]); | |
c6bda689 | 817 | |
347c80f0 | 818 | uevent_env[1] = kmalloc(strlen(BATADV_UEV_ACTION_VAR) + |
0ff9b86f | 819 | strlen(batadv_uev_action_str[action]) + 1, |
c6bda689 AQ |
820 | GFP_ATOMIC); |
821 | if (!uevent_env[1]) | |
822 | goto out; | |
823 | ||
347c80f0 | 824 | sprintf(uevent_env[1], "%s%s", BATADV_UEV_ACTION_VAR, |
0ff9b86f | 825 | batadv_uev_action_str[action]); |
c6bda689 AQ |
826 | |
827 | /* If the event is DEL, ignore the data field */ | |
39c75a51 | 828 | if (action != BATADV_UEV_DEL) { |
347c80f0 | 829 | uevent_env[2] = kmalloc(strlen(BATADV_UEV_DATA_VAR) + |
c6bda689 AQ |
830 | strlen(data) + 1, GFP_ATOMIC); |
831 | if (!uevent_env[2]) | |
832 | goto out; | |
833 | ||
347c80f0 | 834 | sprintf(uevent_env[2], "%s%s", BATADV_UEV_DATA_VAR, data); |
c6bda689 AQ |
835 | } |
836 | ||
837 | ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env); | |
838 | out: | |
839 | kfree(uevent_env[0]); | |
840 | kfree(uevent_env[1]); | |
841 | kfree(uevent_env[2]); | |
842 | ||
c6bda689 | 843 | if (ret) |
39c75a51 | 844 | batadv_dbg(BATADV_DBG_BATMAN, bat_priv, |
1eda58bf | 845 | "Impossible to send uevent for (%s,%s,%s) event (err: %d)\n", |
0ff9b86f SE |
846 | batadv_uev_type_str[type], |
847 | batadv_uev_action_str[action], | |
39c75a51 | 848 | (action == BATADV_UEV_DEL ? "NULL" : data), ret); |
c6bda689 AQ |
849 | return ret; |
850 | } |