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0046b040 | 1 | /* Copyright (C) 2010-2016 B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
2 | * |
3 | * Marek Lindner | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of version 2 of the GNU General Public | |
7 | * License as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
ebf38fb7 | 15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
c6c8fea2 SE |
16 | */ |
17 | ||
b706b13b | 18 | #include "sysfs.h" |
1e2c2a4f SE |
19 | #include "main.h" |
20 | ||
21 | #include <linux/atomic.h> | |
22 | #include <linux/compiler.h> | |
23 | #include <linux/device.h> | |
24 | #include <linux/errno.h> | |
25 | #include <linux/fs.h> | |
26 | #include <linux/if.h> | |
27 | #include <linux/if_vlan.h> | |
6be4d30c | 28 | #include <linux/kref.h> |
1e2c2a4f SE |
29 | #include <linux/kernel.h> |
30 | #include <linux/netdevice.h> | |
31 | #include <linux/printk.h> | |
32 | #include <linux/rculist.h> | |
33 | #include <linux/rcupdate.h> | |
34 | #include <linux/rtnetlink.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/stat.h> | |
37 | #include <linux/stddef.h> | |
38 | #include <linux/string.h> | |
39 | #include <linux/stringify.h> | |
40 | ||
33af49ad | 41 | #include "distributed-arp-table.h" |
1e2c2a4f SE |
42 | #include "gateway_client.h" |
43 | #include "gateway_common.h" | |
d68081a2 | 44 | #include "bridge_loop_avoidance.h" |
c6c8fea2 | 45 | #include "hard-interface.h" |
1e2c2a4f SE |
46 | #include "network-coding.h" |
47 | #include "packet.h" | |
90f4435d | 48 | #include "soft-interface.h" |
c6c8fea2 | 49 | |
0ff9b86f | 50 | static struct net_device *batadv_kobj_to_netdev(struct kobject *obj) |
3d222bba SE |
51 | { |
52 | struct device *dev = container_of(obj->parent, struct device, kobj); | |
f138694b | 53 | |
3d222bba SE |
54 | return to_net_dev(dev); |
55 | } | |
56 | ||
56303d34 | 57 | static struct batadv_priv *batadv_kobj_to_batpriv(struct kobject *obj) |
3d222bba | 58 | { |
0ff9b86f | 59 | struct net_device *net_dev = batadv_kobj_to_netdev(obj); |
f138694b | 60 | |
3d222bba SE |
61 | return netdev_priv(net_dev); |
62 | } | |
c6c8fea2 | 63 | |
90f4435d AQ |
64 | /** |
65 | * batadv_vlan_kobj_to_batpriv - convert a vlan kobj in the associated batpriv | |
66 | * @obj: kobject to covert | |
67 | * | |
62fe710f | 68 | * Return: the associated batadv_priv struct. |
90f4435d AQ |
69 | */ |
70 | static struct batadv_priv *batadv_vlan_kobj_to_batpriv(struct kobject *obj) | |
71 | { | |
72 | /* VLAN specific attributes are located in the root sysfs folder if they | |
73 | * refer to the untagged VLAN.. | |
74 | */ | |
75 | if (!strcmp(BATADV_SYSFS_IF_MESH_SUBDIR, obj->name)) | |
76 | return batadv_kobj_to_batpriv(obj); | |
77 | ||
78 | /* ..while the attributes for the tagged vlans are located in | |
79 | * the in the corresponding "vlan%VID" subfolder | |
80 | */ | |
81 | return batadv_kobj_to_batpriv(obj->parent); | |
82 | } | |
83 | ||
84 | /** | |
85 | * batadv_kobj_to_vlan - convert a kobj in the associated softif_vlan struct | |
7afcbbef | 86 | * @bat_priv: the bat priv with all the soft interface information |
90f4435d AQ |
87 | * @obj: kobject to covert |
88 | * | |
62fe710f | 89 | * Return: the associated softif_vlan struct if found, NULL otherwise. |
90f4435d AQ |
90 | */ |
91 | static struct batadv_softif_vlan * | |
92 | batadv_kobj_to_vlan(struct batadv_priv *bat_priv, struct kobject *obj) | |
93 | { | |
94 | struct batadv_softif_vlan *vlan_tmp, *vlan = NULL; | |
95 | ||
96 | rcu_read_lock(); | |
97 | hlist_for_each_entry_rcu(vlan_tmp, &bat_priv->softif_vlan_list, list) { | |
98 | if (vlan_tmp->kobj != obj) | |
99 | continue; | |
100 | ||
6be4d30c | 101 | if (!kref_get_unless_zero(&vlan_tmp->refcount)) |
90f4435d AQ |
102 | continue; |
103 | ||
104 | vlan = vlan_tmp; | |
105 | break; | |
106 | } | |
107 | rcu_read_unlock(); | |
108 | ||
109 | return vlan; | |
110 | } | |
111 | ||
347c80f0 SE |
112 | #define BATADV_UEV_TYPE_VAR "BATTYPE=" |
113 | #define BATADV_UEV_ACTION_VAR "BATACTION=" | |
114 | #define BATADV_UEV_DATA_VAR "BATDATA=" | |
c6bda689 | 115 | |
0ff9b86f | 116 | static char *batadv_uev_action_str[] = { |
c6bda689 AQ |
117 | "add", |
118 | "del", | |
119 | "change" | |
120 | }; | |
121 | ||
0ff9b86f | 122 | static char *batadv_uev_type_str[] = { |
c6bda689 AQ |
123 | "gw" |
124 | }; | |
125 | ||
90f4435d AQ |
126 | /* Use this, if you have customized show and store functions for vlan attrs */ |
127 | #define BATADV_ATTR_VLAN(_name, _mode, _show, _store) \ | |
128 | struct batadv_attribute batadv_attr_vlan_##_name = { \ | |
129 | .attr = {.name = __stringify(_name), \ | |
130 | .mode = _mode }, \ | |
131 | .show = _show, \ | |
132 | .store = _store, \ | |
2b64df20 | 133 | } |
90f4435d | 134 | |
c6c8fea2 | 135 | /* Use this, if you have customized show and store functions */ |
347c80f0 | 136 | #define BATADV_ATTR(_name, _mode, _show, _store) \ |
b4d66b87 | 137 | struct batadv_attribute batadv_attr_##_name = { \ |
347c80f0 SE |
138 | .attr = {.name = __stringify(_name), \ |
139 | .mode = _mode }, \ | |
140 | .show = _show, \ | |
141 | .store = _store, \ | |
2b64df20 | 142 | } |
c6c8fea2 | 143 | |
347c80f0 | 144 | #define BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ |
0ff9b86f SE |
145 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
146 | struct attribute *attr, char *buff, \ | |
147 | size_t count) \ | |
c6c8fea2 | 148 | { \ |
0ff9b86f | 149 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 150 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
f138694b | 151 | \ |
0ff9b86f SE |
152 | return __batadv_store_bool_attr(buff, count, _post_func, attr, \ |
153 | &bat_priv->_name, net_dev); \ | |
c6c8fea2 SE |
154 | } |
155 | ||
347c80f0 | 156 | #define BATADV_ATTR_SIF_SHOW_BOOL(_name) \ |
0ff9b86f SE |
157 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
158 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 159 | { \ |
56303d34 | 160 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
f138694b | 161 | \ |
c6c8fea2 SE |
162 | return sprintf(buff, "%s\n", \ |
163 | atomic_read(&bat_priv->_name) == 0 ? \ | |
164 | "disabled" : "enabled"); \ | |
165 | } \ | |
166 | ||
f245c38b | 167 | /* Use this, if you are going to turn a [name] in the soft-interface |
9cfc7bd6 SE |
168 | * (bat_priv) on or off |
169 | */ | |
347c80f0 SE |
170 | #define BATADV_ATTR_SIF_BOOL(_name, _mode, _post_func) \ |
171 | static BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ | |
172 | static BATADV_ATTR_SIF_SHOW_BOOL(_name) \ | |
173 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ | |
174 | batadv_store_##_name) | |
c6c8fea2 | 175 | |
6f70eb75 | 176 | #define BATADV_ATTR_SIF_STORE_UINT(_name, _var, _min, _max, _post_func) \ |
0ff9b86f SE |
177 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
178 | struct attribute *attr, char *buff, \ | |
179 | size_t count) \ | |
c6c8fea2 | 180 | { \ |
0ff9b86f | 181 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 182 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
f138694b | 183 | \ |
0ff9b86f SE |
184 | return __batadv_store_uint_attr(buff, count, _min, _max, \ |
185 | _post_func, attr, \ | |
6f70eb75 | 186 | &bat_priv->_var, net_dev); \ |
c6c8fea2 SE |
187 | } |
188 | ||
6f70eb75 | 189 | #define BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \ |
0ff9b86f SE |
190 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
191 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 192 | { \ |
56303d34 | 193 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
f138694b | 194 | \ |
6f70eb75 | 195 | return sprintf(buff, "%i\n", atomic_read(&bat_priv->_var)); \ |
c6c8fea2 SE |
196 | } \ |
197 | ||
f245c38b | 198 | /* Use this, if you are going to set [name] in the soft-interface |
9cfc7bd6 SE |
199 | * (bat_priv) to an unsigned integer value |
200 | */ | |
6f70eb75 AQ |
201 | #define BATADV_ATTR_SIF_UINT(_name, _var, _mode, _min, _max, _post_func)\ |
202 | static BATADV_ATTR_SIF_STORE_UINT(_name, _var, _min, _max, _post_func)\ | |
203 | static BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \ | |
347c80f0 SE |
204 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ |
205 | batadv_store_##_name) | |
c6c8fea2 | 206 | |
90f4435d AQ |
207 | #define BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ |
208 | ssize_t batadv_store_vlan_##_name(struct kobject *kobj, \ | |
209 | struct attribute *attr, char *buff, \ | |
210 | size_t count) \ | |
211 | { \ | |
212 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
213 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
214 | kobj); \ | |
215 | size_t res = __batadv_store_bool_attr(buff, count, _post_func, \ | |
216 | attr, &vlan->_name, \ | |
217 | bat_priv->soft_iface); \ | |
f138694b | 218 | \ |
9c3bf081 | 219 | batadv_softif_vlan_put(vlan); \ |
90f4435d AQ |
220 | return res; \ |
221 | } | |
222 | ||
223 | #define BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
224 | ssize_t batadv_show_vlan_##_name(struct kobject *kobj, \ | |
225 | struct attribute *attr, char *buff) \ | |
226 | { \ | |
227 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
228 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
229 | kobj); \ | |
230 | size_t res = sprintf(buff, "%s\n", \ | |
231 | atomic_read(&vlan->_name) == 0 ? \ | |
232 | "disabled" : "enabled"); \ | |
f138694b | 233 | \ |
9c3bf081 | 234 | batadv_softif_vlan_put(vlan); \ |
90f4435d AQ |
235 | return res; \ |
236 | } | |
237 | ||
238 | /* Use this, if you are going to turn a [name] in the vlan struct on or off */ | |
239 | #define BATADV_ATTR_VLAN_BOOL(_name, _mode, _post_func) \ | |
240 | static BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ | |
241 | static BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
242 | static BATADV_ATTR_VLAN(_name, _mode, batadv_show_vlan_##_name, \ | |
243 | batadv_store_vlan_##_name) | |
0744ff8f LL |
244 | |
245 | #define BATADV_ATTR_HIF_STORE_UINT(_name, _var, _min, _max, _post_func) \ | |
246 | ssize_t batadv_store_##_name(struct kobject *kobj, \ | |
247 | struct attribute *attr, char *buff, \ | |
248 | size_t count) \ | |
249 | { \ | |
250 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ | |
251 | struct batadv_hard_iface *hard_iface; \ | |
252 | ssize_t length; \ | |
253 | \ | |
254 | hard_iface = batadv_hardif_get_by_netdev(net_dev); \ | |
255 | if (!hard_iface) \ | |
256 | return 0; \ | |
257 | \ | |
258 | length = __batadv_store_uint_attr(buff, count, _min, _max, \ | |
259 | _post_func, attr, \ | |
260 | &hard_iface->_var, net_dev); \ | |
261 | \ | |
262 | batadv_hardif_put(hard_iface); \ | |
263 | return length; \ | |
264 | } | |
265 | ||
266 | #define BATADV_ATTR_HIF_SHOW_UINT(_name, _var) \ | |
267 | ssize_t batadv_show_##_name(struct kobject *kobj, \ | |
268 | struct attribute *attr, char *buff) \ | |
269 | { \ | |
270 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ | |
271 | struct batadv_hard_iface *hard_iface; \ | |
272 | ssize_t length; \ | |
273 | \ | |
274 | hard_iface = batadv_hardif_get_by_netdev(net_dev); \ | |
275 | if (!hard_iface) \ | |
276 | return 0; \ | |
277 | \ | |
278 | length = sprintf(buff, "%i\n", atomic_read(&hard_iface->_var)); \ | |
279 | \ | |
280 | batadv_hardif_put(hard_iface); \ | |
281 | return length; \ | |
282 | } | |
283 | ||
284 | /* Use this, if you are going to set [name] in hard_iface to an | |
285 | * unsigned integer value | |
286 | */ | |
287 | #define BATADV_ATTR_HIF_UINT(_name, _var, _mode, _min, _max, _post_func)\ | |
288 | static BATADV_ATTR_HIF_STORE_UINT(_name, _var, _min, \ | |
289 | _max, _post_func) \ | |
290 | static BATADV_ATTR_HIF_SHOW_UINT(_name, _var) \ | |
291 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ | |
292 | batadv_store_##_name) | |
c6c8fea2 | 293 | |
0ff9b86f SE |
294 | static int batadv_store_bool_attr(char *buff, size_t count, |
295 | struct net_device *net_dev, | |
9e728e84 SW |
296 | const char *attr_name, atomic_t *attr, |
297 | bool *changed) | |
c6c8fea2 SE |
298 | { |
299 | int enabled = -1; | |
300 | ||
9e728e84 SW |
301 | *changed = false; |
302 | ||
c6c8fea2 SE |
303 | if (buff[count - 1] == '\n') |
304 | buff[count - 1] = '\0'; | |
305 | ||
306 | if ((strncmp(buff, "1", 2) == 0) || | |
307 | (strncmp(buff, "enable", 7) == 0) || | |
308 | (strncmp(buff, "enabled", 8) == 0)) | |
309 | enabled = 1; | |
310 | ||
311 | if ((strncmp(buff, "0", 2) == 0) || | |
312 | (strncmp(buff, "disable", 8) == 0) || | |
313 | (strncmp(buff, "disabled", 9) == 0)) | |
314 | enabled = 0; | |
315 | ||
316 | if (enabled < 0) { | |
3e34819e SE |
317 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
318 | attr_name, buff); | |
c6c8fea2 SE |
319 | return -EINVAL; |
320 | } | |
321 | ||
322 | if (atomic_read(attr) == enabled) | |
323 | return count; | |
324 | ||
3e34819e SE |
325 | batadv_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name, |
326 | atomic_read(attr) == 1 ? "enabled" : "disabled", | |
327 | enabled == 1 ? "enabled" : "disabled"); | |
c6c8fea2 | 328 | |
9e728e84 SW |
329 | *changed = true; |
330 | ||
95c96174 | 331 | atomic_set(attr, (unsigned int)enabled); |
c6c8fea2 SE |
332 | return count; |
333 | } | |
334 | ||
0ff9b86f SE |
335 | static inline ssize_t |
336 | __batadv_store_bool_attr(char *buff, size_t count, | |
337 | void (*post_func)(struct net_device *), | |
338 | struct attribute *attr, | |
339 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 | 340 | { |
9e728e84 | 341 | bool changed; |
c6c8fea2 SE |
342 | int ret; |
343 | ||
0ff9b86f | 344 | ret = batadv_store_bool_attr(buff, count, net_dev, attr->name, |
9e728e84 SW |
345 | attr_store, &changed); |
346 | if (post_func && changed) | |
c6c8fea2 SE |
347 | post_func(net_dev); |
348 | ||
349 | return ret; | |
350 | } | |
351 | ||
0ff9b86f SE |
352 | static int batadv_store_uint_attr(const char *buff, size_t count, |
353 | struct net_device *net_dev, | |
354 | const char *attr_name, | |
355 | unsigned int min, unsigned int max, | |
356 | atomic_t *attr) | |
c6c8fea2 SE |
357 | { |
358 | unsigned long uint_val; | |
359 | int ret; | |
360 | ||
25a92b13 | 361 | ret = kstrtoul(buff, 10, &uint_val); |
c6c8fea2 | 362 | if (ret) { |
3e34819e SE |
363 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
364 | attr_name, buff); | |
c6c8fea2 SE |
365 | return -EINVAL; |
366 | } | |
367 | ||
368 | if (uint_val < min) { | |
3e34819e SE |
369 | batadv_info(net_dev, "%s: Value is too small: %lu min: %u\n", |
370 | attr_name, uint_val, min); | |
c6c8fea2 SE |
371 | return -EINVAL; |
372 | } | |
373 | ||
374 | if (uint_val > max) { | |
3e34819e SE |
375 | batadv_info(net_dev, "%s: Value is too big: %lu max: %u\n", |
376 | attr_name, uint_val, max); | |
c6c8fea2 SE |
377 | return -EINVAL; |
378 | } | |
379 | ||
380 | if (atomic_read(attr) == uint_val) | |
381 | return count; | |
382 | ||
3e34819e SE |
383 | batadv_info(net_dev, "%s: Changing from: %i to: %lu\n", |
384 | attr_name, atomic_read(attr), uint_val); | |
c6c8fea2 SE |
385 | |
386 | atomic_set(attr, uint_val); | |
387 | return count; | |
388 | } | |
389 | ||
0ff9b86f SE |
390 | static inline ssize_t |
391 | __batadv_store_uint_attr(const char *buff, size_t count, | |
392 | int min, int max, | |
393 | void (*post_func)(struct net_device *), | |
394 | const struct attribute *attr, | |
395 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 SE |
396 | { |
397 | int ret; | |
398 | ||
0ff9b86f SE |
399 | ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max, |
400 | attr_store); | |
c6c8fea2 SE |
401 | if (post_func && ret) |
402 | post_func(net_dev); | |
403 | ||
404 | return ret; | |
405 | } | |
406 | ||
0ff9b86f SE |
407 | static ssize_t batadv_show_bat_algo(struct kobject *kobj, |
408 | struct attribute *attr, char *buff) | |
ea3d2fd1 | 409 | { |
56303d34 | 410 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
f138694b | 411 | |
ea3d2fd1 ML |
412 | return sprintf(buff, "%s\n", bat_priv->bat_algo_ops->name); |
413 | } | |
414 | ||
4e820e72 | 415 | static void batadv_post_gw_reselect(struct net_device *net_dev) |
c6c8fea2 | 416 | { |
56303d34 | 417 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
f138694b | 418 | |
4e820e72 | 419 | batadv_gw_reselect(bat_priv); |
c6c8fea2 SE |
420 | } |
421 | ||
0ff9b86f SE |
422 | static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr, |
423 | char *buff) | |
c6c8fea2 | 424 | { |
56303d34 | 425 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
c6c8fea2 SE |
426 | int bytes_written; |
427 | ||
428 | switch (atomic_read(&bat_priv->gw_mode)) { | |
cd646ab1 | 429 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 SE |
430 | bytes_written = sprintf(buff, "%s\n", |
431 | BATADV_GW_MODE_CLIENT_NAME); | |
c6c8fea2 | 432 | break; |
cd646ab1 | 433 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 SE |
434 | bytes_written = sprintf(buff, "%s\n", |
435 | BATADV_GW_MODE_SERVER_NAME); | |
c6c8fea2 SE |
436 | break; |
437 | default: | |
97ea4ba1 SE |
438 | bytes_written = sprintf(buff, "%s\n", |
439 | BATADV_GW_MODE_OFF_NAME); | |
c6c8fea2 SE |
440 | break; |
441 | } | |
442 | ||
443 | return bytes_written; | |
444 | } | |
445 | ||
0ff9b86f SE |
446 | static ssize_t batadv_store_gw_mode(struct kobject *kobj, |
447 | struct attribute *attr, char *buff, | |
448 | size_t count) | |
c6c8fea2 | 449 | { |
0ff9b86f | 450 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 451 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
c6c8fea2 SE |
452 | char *curr_gw_mode_str; |
453 | int gw_mode_tmp = -1; | |
454 | ||
455 | if (buff[count - 1] == '\n') | |
456 | buff[count - 1] = '\0'; | |
457 | ||
97ea4ba1 SE |
458 | if (strncmp(buff, BATADV_GW_MODE_OFF_NAME, |
459 | strlen(BATADV_GW_MODE_OFF_NAME)) == 0) | |
cd646ab1 | 460 | gw_mode_tmp = BATADV_GW_MODE_OFF; |
c6c8fea2 | 461 | |
97ea4ba1 SE |
462 | if (strncmp(buff, BATADV_GW_MODE_CLIENT_NAME, |
463 | strlen(BATADV_GW_MODE_CLIENT_NAME)) == 0) | |
cd646ab1 | 464 | gw_mode_tmp = BATADV_GW_MODE_CLIENT; |
c6c8fea2 | 465 | |
97ea4ba1 SE |
466 | if (strncmp(buff, BATADV_GW_MODE_SERVER_NAME, |
467 | strlen(BATADV_GW_MODE_SERVER_NAME)) == 0) | |
cd646ab1 | 468 | gw_mode_tmp = BATADV_GW_MODE_SERVER; |
c6c8fea2 SE |
469 | |
470 | if (gw_mode_tmp < 0) { | |
3e34819e SE |
471 | batadv_info(net_dev, |
472 | "Invalid parameter for 'gw mode' setting received: %s\n", | |
473 | buff); | |
c6c8fea2 SE |
474 | return -EINVAL; |
475 | } | |
476 | ||
477 | if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp) | |
478 | return count; | |
479 | ||
480 | switch (atomic_read(&bat_priv->gw_mode)) { | |
cd646ab1 | 481 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 | 482 | curr_gw_mode_str = BATADV_GW_MODE_CLIENT_NAME; |
c6c8fea2 | 483 | break; |
cd646ab1 | 484 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 | 485 | curr_gw_mode_str = BATADV_GW_MODE_SERVER_NAME; |
c6c8fea2 SE |
486 | break; |
487 | default: | |
97ea4ba1 | 488 | curr_gw_mode_str = BATADV_GW_MODE_OFF_NAME; |
c6c8fea2 SE |
489 | break; |
490 | } | |
491 | ||
3e34819e SE |
492 | batadv_info(net_dev, "Changing gw mode from: %s to: %s\n", |
493 | curr_gw_mode_str, buff); | |
c6c8fea2 | 494 | |
f3163181 AQ |
495 | /* Invoking batadv_gw_reselect() is not enough to really de-select the |
496 | * current GW. It will only instruct the gateway client code to perform | |
497 | * a re-election the next time that this is needed. | |
498 | * | |
499 | * When gw client mode is being switched off the current GW must be | |
500 | * de-selected explicitly otherwise no GW_ADD uevent is thrown on | |
501 | * client mode re-activation. This is operation is performed in | |
502 | * batadv_gw_check_client_stop(). | |
503 | */ | |
4e820e72 | 504 | batadv_gw_reselect(bat_priv); |
c6eaa3f0 AQ |
505 | /* always call batadv_gw_check_client_stop() before changing the gateway |
506 | * state | |
507 | */ | |
508 | batadv_gw_check_client_stop(bat_priv); | |
95c96174 | 509 | atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp); |
414254e3 | 510 | batadv_gw_tvlv_container_update(bat_priv); |
c6c8fea2 SE |
511 | return count; |
512 | } | |
513 | ||
0ff9b86f SE |
514 | static ssize_t batadv_show_gw_bwidth(struct kobject *kobj, |
515 | struct attribute *attr, char *buff) | |
c6c8fea2 | 516 | { |
56303d34 | 517 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
6b5e971a | 518 | u32 down, up; |
414254e3 ML |
519 | |
520 | down = atomic_read(&bat_priv->gw.bandwidth_down); | |
521 | up = atomic_read(&bat_priv->gw.bandwidth_up); | |
522 | ||
523 | return sprintf(buff, "%u.%u/%u.%u MBit\n", down / 10, | |
524 | down % 10, up / 10, up % 10); | |
c6c8fea2 SE |
525 | } |
526 | ||
0ff9b86f SE |
527 | static ssize_t batadv_store_gw_bwidth(struct kobject *kobj, |
528 | struct attribute *attr, char *buff, | |
529 | size_t count) | |
c6c8fea2 | 530 | { |
0ff9b86f | 531 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
c6c8fea2 SE |
532 | |
533 | if (buff[count - 1] == '\n') | |
534 | buff[count - 1] = '\0'; | |
535 | ||
84d5e5e0 | 536 | return batadv_gw_bandwidth_set(net_dev, buff, count); |
c6c8fea2 SE |
537 | } |
538 | ||
c42edfe3 AQ |
539 | /** |
540 | * batadv_show_isolation_mark - print the current isolation mark/mask | |
541 | * @kobj: kobject representing the private mesh sysfs directory | |
542 | * @attr: the batman-adv attribute the user is interacting with | |
543 | * @buff: the buffer that will contain the data to send back to the user | |
544 | * | |
62fe710f | 545 | * Return: the number of bytes written into 'buff' on success or a negative |
c42edfe3 AQ |
546 | * error code in case of failure |
547 | */ | |
548 | static ssize_t batadv_show_isolation_mark(struct kobject *kobj, | |
549 | struct attribute *attr, char *buff) | |
550 | { | |
551 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); | |
552 | ||
553 | return sprintf(buff, "%#.8x/%#.8x\n", bat_priv->isolation_mark, | |
554 | bat_priv->isolation_mark_mask); | |
555 | } | |
556 | ||
557 | /** | |
558 | * batadv_store_isolation_mark - parse and store the isolation mark/mask entered | |
559 | * by the user | |
560 | * @kobj: kobject representing the private mesh sysfs directory | |
561 | * @attr: the batman-adv attribute the user is interacting with | |
562 | * @buff: the buffer containing the user data | |
563 | * @count: number of bytes in the buffer | |
564 | * | |
62fe710f | 565 | * Return: 'count' on success or a negative error code in case of failure |
c42edfe3 AQ |
566 | */ |
567 | static ssize_t batadv_store_isolation_mark(struct kobject *kobj, | |
568 | struct attribute *attr, char *buff, | |
569 | size_t count) | |
570 | { | |
571 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); | |
572 | struct batadv_priv *bat_priv = netdev_priv(net_dev); | |
6b5e971a | 573 | u32 mark, mask; |
c42edfe3 AQ |
574 | char *mask_ptr; |
575 | ||
576 | /* parse the mask if it has been specified, otherwise assume the mask is | |
577 | * the biggest possible | |
578 | */ | |
579 | mask = 0xFFFFFFFF; | |
580 | mask_ptr = strchr(buff, '/'); | |
581 | if (mask_ptr) { | |
582 | *mask_ptr = '\0'; | |
583 | mask_ptr++; | |
584 | ||
585 | /* the mask must be entered in hex base as it is going to be a | |
586 | * bitmask and not a prefix length | |
587 | */ | |
588 | if (kstrtou32(mask_ptr, 16, &mask) < 0) | |
589 | return -EINVAL; | |
590 | } | |
591 | ||
592 | /* the mark can be entered in any base */ | |
593 | if (kstrtou32(buff, 0, &mark) < 0) | |
594 | return -EINVAL; | |
595 | ||
596 | bat_priv->isolation_mark_mask = mask; | |
597 | /* erase bits not covered by the mask */ | |
598 | bat_priv->isolation_mark = mark & bat_priv->isolation_mark_mask; | |
599 | ||
600 | batadv_info(net_dev, | |
601 | "New skb mark for extended isolation: %#.8x/%#.8x\n", | |
602 | bat_priv->isolation_mark, bat_priv->isolation_mark_mask); | |
603 | ||
604 | return count; | |
605 | } | |
606 | ||
347c80f0 SE |
607 | BATADV_ATTR_SIF_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL); |
608 | BATADV_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL); | |
7a5cc242 | 609 | #ifdef CONFIG_BATMAN_ADV_BLA |
d68081a2 SW |
610 | BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, |
611 | batadv_bla_status_update); | |
7a5cc242 | 612 | #endif |
33af49ad | 613 | #ifdef CONFIG_BATMAN_ADV_DAT |
17cf0ea4 ML |
614 | BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, |
615 | batadv_dat_status_update); | |
33af49ad | 616 | #endif |
347c80f0 | 617 | BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu); |
347c80f0 SE |
618 | static BATADV_ATTR(routing_algo, S_IRUGO, batadv_show_bat_algo, NULL); |
619 | static BATADV_ATTR(gw_mode, S_IRUGO | S_IWUSR, batadv_show_gw_mode, | |
620 | batadv_store_gw_mode); | |
6f70eb75 AQ |
621 | BATADV_ATTR_SIF_UINT(orig_interval, orig_interval, S_IRUGO | S_IWUSR, |
622 | 2 * BATADV_JITTER, INT_MAX, NULL); | |
623 | BATADV_ATTR_SIF_UINT(hop_penalty, hop_penalty, S_IRUGO | S_IWUSR, 0, | |
624 | BATADV_TQ_MAX_VALUE, NULL); | |
625 | BATADV_ATTR_SIF_UINT(gw_sel_class, gw_sel_class, S_IRUGO | S_IWUSR, 1, | |
626 | BATADV_TQ_MAX_VALUE, batadv_post_gw_reselect); | |
347c80f0 SE |
627 | static BATADV_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, batadv_show_gw_bwidth, |
628 | batadv_store_gw_bwidth); | |
1d8ab8d3 LL |
629 | #ifdef CONFIG_BATMAN_ADV_MCAST |
630 | BATADV_ATTR_SIF_BOOL(multicast_mode, S_IRUGO | S_IWUSR, NULL); | |
631 | #endif | |
c6c8fea2 | 632 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
6f70eb75 AQ |
633 | BATADV_ATTR_SIF_UINT(log_level, log_level, S_IRUGO | S_IWUSR, 0, |
634 | BATADV_DBG_ALL, NULL); | |
c6c8fea2 | 635 | #endif |
d353d8d4 | 636 | #ifdef CONFIG_BATMAN_ADV_NC |
3f4841ff ML |
637 | BATADV_ATTR_SIF_BOOL(network_coding, S_IRUGO | S_IWUSR, |
638 | batadv_nc_status_update); | |
d353d8d4 | 639 | #endif |
c42edfe3 AQ |
640 | static BATADV_ATTR(isolation_mark, S_IRUGO | S_IWUSR, |
641 | batadv_show_isolation_mark, batadv_store_isolation_mark); | |
c6c8fea2 | 642 | |
b4d66b87 | 643 | static struct batadv_attribute *batadv_mesh_attrs[] = { |
0ff9b86f SE |
644 | &batadv_attr_aggregated_ogms, |
645 | &batadv_attr_bonding, | |
7a5cc242 | 646 | #ifdef CONFIG_BATMAN_ADV_BLA |
0ff9b86f | 647 | &batadv_attr_bridge_loop_avoidance, |
33af49ad AQ |
648 | #endif |
649 | #ifdef CONFIG_BATMAN_ADV_DAT | |
650 | &batadv_attr_distributed_arp_table, | |
1d8ab8d3 LL |
651 | #endif |
652 | #ifdef CONFIG_BATMAN_ADV_MCAST | |
653 | &batadv_attr_multicast_mode, | |
7a5cc242 | 654 | #endif |
0ff9b86f | 655 | &batadv_attr_fragmentation, |
0ff9b86f SE |
656 | &batadv_attr_routing_algo, |
657 | &batadv_attr_gw_mode, | |
658 | &batadv_attr_orig_interval, | |
659 | &batadv_attr_hop_penalty, | |
660 | &batadv_attr_gw_sel_class, | |
661 | &batadv_attr_gw_bandwidth, | |
c6c8fea2 | 662 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
0ff9b86f | 663 | &batadv_attr_log_level, |
d353d8d4 MH |
664 | #endif |
665 | #ifdef CONFIG_BATMAN_ADV_NC | |
666 | &batadv_attr_network_coding, | |
c6c8fea2 | 667 | #endif |
c42edfe3 | 668 | &batadv_attr_isolation_mark, |
c6c8fea2 SE |
669 | NULL, |
670 | }; | |
671 | ||
b8cbd81d AQ |
672 | BATADV_ATTR_VLAN_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL); |
673 | ||
f34ac9d4 | 674 | /* array of vlan specific sysfs attributes */ |
90f4435d | 675 | static struct batadv_attribute *batadv_vlan_attrs[] = { |
b8cbd81d | 676 | &batadv_attr_vlan_ap_isolation, |
90f4435d AQ |
677 | NULL, |
678 | }; | |
679 | ||
5853e22c | 680 | int batadv_sysfs_add_meshif(struct net_device *dev) |
c6c8fea2 SE |
681 | { |
682 | struct kobject *batif_kobject = &dev->dev.kobj; | |
56303d34 | 683 | struct batadv_priv *bat_priv = netdev_priv(dev); |
b4d66b87 | 684 | struct batadv_attribute **bat_attr; |
c6c8fea2 SE |
685 | int err; |
686 | ||
036cbfeb | 687 | bat_priv->mesh_obj = kobject_create_and_add(BATADV_SYSFS_IF_MESH_SUBDIR, |
c6c8fea2 SE |
688 | batif_kobject); |
689 | if (!bat_priv->mesh_obj) { | |
3e34819e | 690 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
036cbfeb | 691 | BATADV_SYSFS_IF_MESH_SUBDIR); |
c6c8fea2 SE |
692 | goto out; |
693 | } | |
694 | ||
0ff9b86f | 695 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) { |
c6c8fea2 SE |
696 | err = sysfs_create_file(bat_priv->mesh_obj, |
697 | &((*bat_attr)->attr)); | |
698 | if (err) { | |
3e34819e | 699 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
036cbfeb | 700 | dev->name, BATADV_SYSFS_IF_MESH_SUBDIR, |
3e34819e | 701 | ((*bat_attr)->attr).name); |
c6c8fea2 SE |
702 | goto rem_attr; |
703 | } | |
704 | } | |
705 | ||
706 | return 0; | |
707 | ||
708 | rem_attr: | |
0ff9b86f | 709 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
710 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
711 | ||
712 | kobject_put(bat_priv->mesh_obj); | |
713 | bat_priv->mesh_obj = NULL; | |
714 | out: | |
715 | return -ENOMEM; | |
716 | } | |
717 | ||
5853e22c | 718 | void batadv_sysfs_del_meshif(struct net_device *dev) |
c6c8fea2 | 719 | { |
56303d34 | 720 | struct batadv_priv *bat_priv = netdev_priv(dev); |
b4d66b87 | 721 | struct batadv_attribute **bat_attr; |
c6c8fea2 | 722 | |
0ff9b86f | 723 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
724 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
725 | ||
726 | kobject_put(bat_priv->mesh_obj); | |
727 | bat_priv->mesh_obj = NULL; | |
728 | } | |
729 | ||
90f4435d AQ |
730 | /** |
731 | * batadv_sysfs_add_vlan - add all the needed sysfs objects for the new vlan | |
732 | * @dev: netdev of the mesh interface | |
733 | * @vlan: private data of the newly added VLAN interface | |
734 | * | |
62fe710f | 735 | * Return: 0 on success and -ENOMEM if any of the structure allocations fails. |
90f4435d AQ |
736 | */ |
737 | int batadv_sysfs_add_vlan(struct net_device *dev, | |
738 | struct batadv_softif_vlan *vlan) | |
739 | { | |
740 | char vlan_subdir[sizeof(BATADV_SYSFS_VLAN_SUBDIR_PREFIX) + 5]; | |
741 | struct batadv_priv *bat_priv = netdev_priv(dev); | |
742 | struct batadv_attribute **bat_attr; | |
743 | int err; | |
744 | ||
745 | if (vlan->vid & BATADV_VLAN_HAS_TAG) { | |
746 | sprintf(vlan_subdir, BATADV_SYSFS_VLAN_SUBDIR_PREFIX "%hu", | |
747 | vlan->vid & VLAN_VID_MASK); | |
748 | ||
749 | vlan->kobj = kobject_create_and_add(vlan_subdir, | |
750 | bat_priv->mesh_obj); | |
751 | if (!vlan->kobj) { | |
752 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", | |
753 | dev->name, vlan_subdir); | |
754 | goto out; | |
755 | } | |
756 | } else { | |
757 | /* the untagged LAN uses the root folder to store its "VLAN | |
758 | * specific attributes" | |
759 | */ | |
760 | vlan->kobj = bat_priv->mesh_obj; | |
761 | kobject_get(bat_priv->mesh_obj); | |
762 | } | |
763 | ||
764 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) { | |
765 | err = sysfs_create_file(vlan->kobj, | |
766 | &((*bat_attr)->attr)); | |
767 | if (err) { | |
768 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", | |
769 | dev->name, vlan_subdir, | |
770 | ((*bat_attr)->attr).name); | |
771 | goto rem_attr; | |
772 | } | |
773 | } | |
774 | ||
775 | return 0; | |
776 | ||
777 | rem_attr: | |
778 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) | |
779 | sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr)); | |
780 | ||
781 | kobject_put(vlan->kobj); | |
782 | vlan->kobj = NULL; | |
783 | out: | |
784 | return -ENOMEM; | |
785 | } | |
786 | ||
787 | /** | |
788 | * batadv_sysfs_del_vlan - remove all the sysfs objects for a given VLAN | |
789 | * @bat_priv: the bat priv with all the soft interface information | |
790 | * @vlan: the private data of the VLAN to destroy | |
791 | */ | |
792 | void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv, | |
793 | struct batadv_softif_vlan *vlan) | |
794 | { | |
795 | struct batadv_attribute **bat_attr; | |
796 | ||
797 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) | |
798 | sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr)); | |
799 | ||
800 | kobject_put(vlan->kobj); | |
801 | vlan->kobj = NULL; | |
802 | } | |
803 | ||
0ff9b86f SE |
804 | static ssize_t batadv_show_mesh_iface(struct kobject *kobj, |
805 | struct attribute *attr, char *buff) | |
c6c8fea2 | 806 | { |
0ff9b86f | 807 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 808 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 | 809 | ssize_t length; |
e9a4f295 | 810 | const char *ifname; |
c6c8fea2 | 811 | |
56303d34 | 812 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 813 | if (!hard_iface) |
c6c8fea2 SE |
814 | return 0; |
815 | ||
e9a4f295 SE |
816 | if (hard_iface->if_status == BATADV_IF_NOT_IN_USE) |
817 | ifname = "none"; | |
818 | else | |
819 | ifname = hard_iface->soft_iface->name; | |
820 | ||
821 | length = sprintf(buff, "%s\n", ifname); | |
c6c8fea2 | 822 | |
82047ad7 | 823 | batadv_hardif_put(hard_iface); |
c6c8fea2 SE |
824 | |
825 | return length; | |
826 | } | |
827 | ||
0ff9b86f SE |
828 | static ssize_t batadv_store_mesh_iface(struct kobject *kobj, |
829 | struct attribute *attr, char *buff, | |
830 | size_t count) | |
c6c8fea2 | 831 | { |
0ff9b86f | 832 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 833 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 | 834 | int status_tmp = -1; |
ed75ccbe | 835 | int ret = count; |
c6c8fea2 | 836 | |
56303d34 | 837 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 838 | if (!hard_iface) |
c6c8fea2 SE |
839 | return count; |
840 | ||
841 | if (buff[count - 1] == '\n') | |
842 | buff[count - 1] = '\0'; | |
843 | ||
844 | if (strlen(buff) >= IFNAMSIZ) { | |
86ceb360 SE |
845 | pr_err("Invalid parameter for 'mesh_iface' setting received: interface name too long '%s'\n", |
846 | buff); | |
82047ad7 | 847 | batadv_hardif_put(hard_iface); |
c6c8fea2 SE |
848 | return -EINVAL; |
849 | } | |
850 | ||
851 | if (strncmp(buff, "none", 4) == 0) | |
e9a4f295 | 852 | status_tmp = BATADV_IF_NOT_IN_USE; |
c6c8fea2 | 853 | else |
e9a4f295 | 854 | status_tmp = BATADV_IF_I_WANT_YOU; |
c6c8fea2 | 855 | |
e6c10f43 ML |
856 | if (hard_iface->if_status == status_tmp) |
857 | goto out; | |
858 | ||
859 | if ((hard_iface->soft_iface) && | |
860 | (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0)) | |
ed75ccbe | 861 | goto out; |
c6c8fea2 | 862 | |
ac16d148 | 863 | rtnl_lock(); |
3a4375a9 | 864 | |
e9a4f295 | 865 | if (status_tmp == BATADV_IF_NOT_IN_USE) { |
a15fd361 SE |
866 | batadv_hardif_disable_interface(hard_iface, |
867 | BATADV_IF_CLEANUP_AUTO); | |
3a4375a9 | 868 | goto unlock; |
c6c8fea2 SE |
869 | } |
870 | ||
871 | /* if the interface already is in use */ | |
e9a4f295 | 872 | if (hard_iface->if_status != BATADV_IF_NOT_IN_USE) |
a15fd361 SE |
873 | batadv_hardif_disable_interface(hard_iface, |
874 | BATADV_IF_CLEANUP_AUTO); | |
c6c8fea2 | 875 | |
9563877e | 876 | ret = batadv_hardif_enable_interface(hard_iface, buff); |
c6c8fea2 | 877 | |
3a4375a9 SE |
878 | unlock: |
879 | rtnl_unlock(); | |
ed75ccbe | 880 | out: |
82047ad7 | 881 | batadv_hardif_put(hard_iface); |
c6c8fea2 SE |
882 | return ret; |
883 | } | |
884 | ||
0ff9b86f SE |
885 | static ssize_t batadv_show_iface_status(struct kobject *kobj, |
886 | struct attribute *attr, char *buff) | |
c6c8fea2 | 887 | { |
0ff9b86f | 888 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 889 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 SE |
890 | ssize_t length; |
891 | ||
56303d34 | 892 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 893 | if (!hard_iface) |
c6c8fea2 SE |
894 | return 0; |
895 | ||
e6c10f43 | 896 | switch (hard_iface->if_status) { |
e9a4f295 | 897 | case BATADV_IF_TO_BE_REMOVED: |
c6c8fea2 SE |
898 | length = sprintf(buff, "disabling\n"); |
899 | break; | |
e9a4f295 | 900 | case BATADV_IF_INACTIVE: |
c6c8fea2 SE |
901 | length = sprintf(buff, "inactive\n"); |
902 | break; | |
e9a4f295 | 903 | case BATADV_IF_ACTIVE: |
c6c8fea2 SE |
904 | length = sprintf(buff, "active\n"); |
905 | break; | |
e9a4f295 | 906 | case BATADV_IF_TO_BE_ACTIVATED: |
c6c8fea2 SE |
907 | length = sprintf(buff, "enabling\n"); |
908 | break; | |
e9a4f295 | 909 | case BATADV_IF_NOT_IN_USE: |
c6c8fea2 SE |
910 | default: |
911 | length = sprintf(buff, "not in use\n"); | |
912 | break; | |
913 | } | |
914 | ||
82047ad7 | 915 | batadv_hardif_put(hard_iface); |
c6c8fea2 SE |
916 | |
917 | return length; | |
918 | } | |
919 | ||
0b5ecc68 AQ |
920 | #ifdef CONFIG_BATMAN_ADV_BATMAN_V |
921 | ||
922 | /** | |
923 | * batadv_store_throughput_override - parse and store throughput override | |
924 | * entered by the user | |
925 | * @kobj: kobject representing the private mesh sysfs directory | |
926 | * @attr: the batman-adv attribute the user is interacting with | |
927 | * @buff: the buffer containing the user data | |
928 | * @count: number of bytes in the buffer | |
929 | * | |
930 | * Return: 'count' on success or a negative error code in case of failure | |
931 | */ | |
932 | static ssize_t batadv_store_throughput_override(struct kobject *kobj, | |
933 | struct attribute *attr, | |
934 | char *buff, size_t count) | |
935 | { | |
936 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); | |
937 | struct batadv_hard_iface *hard_iface; | |
938 | u32 tp_override; | |
939 | u32 old_tp_override; | |
940 | bool ret; | |
941 | ||
942 | hard_iface = batadv_hardif_get_by_netdev(net_dev); | |
943 | if (!hard_iface) | |
944 | return -EINVAL; | |
945 | ||
946 | if (buff[count - 1] == '\n') | |
947 | buff[count - 1] = '\0'; | |
948 | ||
949 | ret = batadv_parse_throughput(net_dev, buff, "throughput_override", | |
950 | &tp_override); | |
951 | if (!ret) | |
952 | return count; | |
953 | ||
954 | old_tp_override = atomic_read(&hard_iface->bat_v.throughput_override); | |
955 | if (old_tp_override == tp_override) | |
956 | goto out; | |
957 | ||
958 | batadv_info(net_dev, "%s: Changing from: %u.%u MBit to: %u.%u MBit\n", | |
959 | "throughput_override", | |
960 | old_tp_override / 10, old_tp_override % 10, | |
961 | tp_override / 10, tp_override % 10); | |
962 | ||
963 | atomic_set(&hard_iface->bat_v.throughput_override, tp_override); | |
964 | ||
965 | out: | |
966 | batadv_hardif_put(hard_iface); | |
967 | return count; | |
968 | } | |
969 | ||
970 | static ssize_t batadv_show_throughput_override(struct kobject *kobj, | |
971 | struct attribute *attr, | |
972 | char *buff) | |
973 | { | |
974 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); | |
975 | struct batadv_hard_iface *hard_iface; | |
976 | u32 tp_override; | |
977 | ||
978 | hard_iface = batadv_hardif_get_by_netdev(net_dev); | |
979 | if (!hard_iface) | |
980 | return -EINVAL; | |
981 | ||
982 | tp_override = atomic_read(&hard_iface->bat_v.throughput_override); | |
983 | ||
984 | return sprintf(buff, "%u.%u MBit\n", tp_override / 10, | |
985 | tp_override % 10); | |
986 | } | |
987 | ||
988 | #endif | |
989 | ||
347c80f0 SE |
990 | static BATADV_ATTR(mesh_iface, S_IRUGO | S_IWUSR, batadv_show_mesh_iface, |
991 | batadv_store_mesh_iface); | |
992 | static BATADV_ATTR(iface_status, S_IRUGO, batadv_show_iface_status, NULL); | |
7f136cd4 LL |
993 | #ifdef CONFIG_BATMAN_ADV_BATMAN_V |
994 | BATADV_ATTR_HIF_UINT(elp_interval, bat_v.elp_interval, S_IRUGO | S_IWUSR, | |
995 | 2 * BATADV_JITTER, INT_MAX, NULL); | |
0b5ecc68 AQ |
996 | static BATADV_ATTR(throughput_override, S_IRUGO | S_IWUSR, |
997 | batadv_show_throughput_override, | |
998 | batadv_store_throughput_override); | |
7f136cd4 | 999 | #endif |
c6c8fea2 | 1000 | |
b4d66b87 | 1001 | static struct batadv_attribute *batadv_batman_attrs[] = { |
0ff9b86f SE |
1002 | &batadv_attr_mesh_iface, |
1003 | &batadv_attr_iface_status, | |
7f136cd4 LL |
1004 | #ifdef CONFIG_BATMAN_ADV_BATMAN_V |
1005 | &batadv_attr_elp_interval, | |
0b5ecc68 | 1006 | &batadv_attr_throughput_override, |
7f136cd4 | 1007 | #endif |
c6c8fea2 SE |
1008 | NULL, |
1009 | }; | |
1010 | ||
5853e22c | 1011 | int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev) |
c6c8fea2 SE |
1012 | { |
1013 | struct kobject *hardif_kobject = &dev->dev.kobj; | |
b4d66b87 | 1014 | struct batadv_attribute **bat_attr; |
c6c8fea2 SE |
1015 | int err; |
1016 | ||
036cbfeb SE |
1017 | *hardif_obj = kobject_create_and_add(BATADV_SYSFS_IF_BAT_SUBDIR, |
1018 | hardif_kobject); | |
c6c8fea2 SE |
1019 | |
1020 | if (!*hardif_obj) { | |
3e34819e | 1021 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
036cbfeb | 1022 | BATADV_SYSFS_IF_BAT_SUBDIR); |
c6c8fea2 SE |
1023 | goto out; |
1024 | } | |
1025 | ||
0ff9b86f | 1026 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) { |
c6c8fea2 SE |
1027 | err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr)); |
1028 | if (err) { | |
3e34819e | 1029 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
036cbfeb | 1030 | dev->name, BATADV_SYSFS_IF_BAT_SUBDIR, |
3e34819e | 1031 | ((*bat_attr)->attr).name); |
c6c8fea2 SE |
1032 | goto rem_attr; |
1033 | } | |
1034 | } | |
1035 | ||
1036 | return 0; | |
1037 | ||
1038 | rem_attr: | |
0ff9b86f | 1039 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
1040 | sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr)); |
1041 | out: | |
1042 | return -ENOMEM; | |
1043 | } | |
1044 | ||
5853e22c | 1045 | void batadv_sysfs_del_hardif(struct kobject **hardif_obj) |
c6c8fea2 SE |
1046 | { |
1047 | kobject_put(*hardif_obj); | |
1048 | *hardif_obj = NULL; | |
1049 | } | |
c6bda689 | 1050 | |
56303d34 | 1051 | int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type, |
39c75a51 | 1052 | enum batadv_uev_action action, const char *data) |
c6bda689 | 1053 | { |
5346c35e | 1054 | int ret = -ENOMEM; |
c6bda689 AQ |
1055 | struct kobject *bat_kobj; |
1056 | char *uevent_env[4] = { NULL, NULL, NULL, NULL }; | |
1057 | ||
736292c2 | 1058 | bat_kobj = &bat_priv->soft_iface->dev.kobj; |
c6bda689 | 1059 | |
b98fe24c HS |
1060 | uevent_env[0] = kasprintf(GFP_ATOMIC, |
1061 | "%s%s", BATADV_UEV_TYPE_VAR, | |
1062 | batadv_uev_type_str[type]); | |
c6bda689 AQ |
1063 | if (!uevent_env[0]) |
1064 | goto out; | |
1065 | ||
b98fe24c HS |
1066 | uevent_env[1] = kasprintf(GFP_ATOMIC, |
1067 | "%s%s", BATADV_UEV_ACTION_VAR, | |
1068 | batadv_uev_action_str[action]); | |
c6bda689 AQ |
1069 | if (!uevent_env[1]) |
1070 | goto out; | |
1071 | ||
c6bda689 | 1072 | /* If the event is DEL, ignore the data field */ |
39c75a51 | 1073 | if (action != BATADV_UEV_DEL) { |
b98fe24c HS |
1074 | uevent_env[2] = kasprintf(GFP_ATOMIC, |
1075 | "%s%s", BATADV_UEV_DATA_VAR, data); | |
c6bda689 AQ |
1076 | if (!uevent_env[2]) |
1077 | goto out; | |
c6bda689 AQ |
1078 | } |
1079 | ||
1080 | ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env); | |
1081 | out: | |
1082 | kfree(uevent_env[0]); | |
1083 | kfree(uevent_env[1]); | |
1084 | kfree(uevent_env[2]); | |
1085 | ||
c6bda689 | 1086 | if (ret) |
39c75a51 | 1087 | batadv_dbg(BATADV_DBG_BATMAN, bat_priv, |
1eda58bf | 1088 | "Impossible to send uevent for (%s,%s,%s) event (err: %d)\n", |
0ff9b86f SE |
1089 | batadv_uev_type_str[type], |
1090 | batadv_uev_action_str[action], | |
39c75a51 | 1091 | (action == BATADV_UEV_DEL ? "NULL" : data), ret); |
c6bda689 AQ |
1092 | return ret; |
1093 | } |