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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> | |
28 | #include <linux/kernel.h> | |
fcafa5e7 | 29 | #include <linux/kref.h> |
1e2c2a4f SE |
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 | ||
fcafa5e7 | 41 | #include "bridge_loop_avoidance.h" |
33af49ad | 42 | #include "distributed-arp-table.h" |
1e2c2a4f SE |
43 | #include "gateway_client.h" |
44 | #include "gateway_common.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", | |
cd9c7bfb SW |
119 | "change", |
120 | "loopdetect", | |
c6bda689 AQ |
121 | }; |
122 | ||
0ff9b86f | 123 | static char *batadv_uev_type_str[] = { |
cd9c7bfb SW |
124 | "gw", |
125 | "bla", | |
c6bda689 AQ |
126 | }; |
127 | ||
90f4435d AQ |
128 | /* Use this, if you have customized show and store functions for vlan attrs */ |
129 | #define BATADV_ATTR_VLAN(_name, _mode, _show, _store) \ | |
130 | struct batadv_attribute batadv_attr_vlan_##_name = { \ | |
131 | .attr = {.name = __stringify(_name), \ | |
132 | .mode = _mode }, \ | |
133 | .show = _show, \ | |
134 | .store = _store, \ | |
2b64df20 | 135 | } |
90f4435d | 136 | |
c6c8fea2 | 137 | /* Use this, if you have customized show and store functions */ |
347c80f0 | 138 | #define BATADV_ATTR(_name, _mode, _show, _store) \ |
b4d66b87 | 139 | struct batadv_attribute batadv_attr_##_name = { \ |
347c80f0 SE |
140 | .attr = {.name = __stringify(_name), \ |
141 | .mode = _mode }, \ | |
142 | .show = _show, \ | |
143 | .store = _store, \ | |
2b64df20 | 144 | } |
c6c8fea2 | 145 | |
347c80f0 | 146 | #define BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ |
0ff9b86f SE |
147 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
148 | struct attribute *attr, char *buff, \ | |
149 | size_t count) \ | |
c6c8fea2 | 150 | { \ |
0ff9b86f | 151 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 152 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
f138694b | 153 | \ |
0ff9b86f SE |
154 | return __batadv_store_bool_attr(buff, count, _post_func, attr, \ |
155 | &bat_priv->_name, net_dev); \ | |
c6c8fea2 SE |
156 | } |
157 | ||
347c80f0 | 158 | #define BATADV_ATTR_SIF_SHOW_BOOL(_name) \ |
0ff9b86f SE |
159 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
160 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 161 | { \ |
56303d34 | 162 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
f138694b | 163 | \ |
c6c8fea2 SE |
164 | return sprintf(buff, "%s\n", \ |
165 | atomic_read(&bat_priv->_name) == 0 ? \ | |
166 | "disabled" : "enabled"); \ | |
167 | } \ | |
168 | ||
f245c38b | 169 | /* Use this, if you are going to turn a [name] in the soft-interface |
9cfc7bd6 SE |
170 | * (bat_priv) on or off |
171 | */ | |
347c80f0 SE |
172 | #define BATADV_ATTR_SIF_BOOL(_name, _mode, _post_func) \ |
173 | static BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \ | |
174 | static BATADV_ATTR_SIF_SHOW_BOOL(_name) \ | |
175 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ | |
176 | batadv_store_##_name) | |
c6c8fea2 | 177 | |
6f70eb75 | 178 | #define BATADV_ATTR_SIF_STORE_UINT(_name, _var, _min, _max, _post_func) \ |
0ff9b86f SE |
179 | ssize_t batadv_store_##_name(struct kobject *kobj, \ |
180 | struct attribute *attr, char *buff, \ | |
181 | size_t count) \ | |
c6c8fea2 | 182 | { \ |
0ff9b86f | 183 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ |
56303d34 | 184 | struct batadv_priv *bat_priv = netdev_priv(net_dev); \ |
f138694b | 185 | \ |
0ff9b86f SE |
186 | return __batadv_store_uint_attr(buff, count, _min, _max, \ |
187 | _post_func, attr, \ | |
6f70eb75 | 188 | &bat_priv->_var, net_dev); \ |
c6c8fea2 SE |
189 | } |
190 | ||
6f70eb75 | 191 | #define BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \ |
0ff9b86f SE |
192 | ssize_t batadv_show_##_name(struct kobject *kobj, \ |
193 | struct attribute *attr, char *buff) \ | |
c6c8fea2 | 194 | { \ |
56303d34 | 195 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \ |
f138694b | 196 | \ |
6f70eb75 | 197 | return sprintf(buff, "%i\n", atomic_read(&bat_priv->_var)); \ |
c6c8fea2 SE |
198 | } \ |
199 | ||
f245c38b | 200 | /* Use this, if you are going to set [name] in the soft-interface |
9cfc7bd6 SE |
201 | * (bat_priv) to an unsigned integer value |
202 | */ | |
6f70eb75 AQ |
203 | #define BATADV_ATTR_SIF_UINT(_name, _var, _mode, _min, _max, _post_func)\ |
204 | static BATADV_ATTR_SIF_STORE_UINT(_name, _var, _min, _max, _post_func)\ | |
205 | static BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \ | |
347c80f0 SE |
206 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ |
207 | batadv_store_##_name) | |
c6c8fea2 | 208 | |
90f4435d AQ |
209 | #define BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ |
210 | ssize_t batadv_store_vlan_##_name(struct kobject *kobj, \ | |
211 | struct attribute *attr, char *buff, \ | |
212 | size_t count) \ | |
213 | { \ | |
214 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
215 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
216 | kobj); \ | |
217 | size_t res = __batadv_store_bool_attr(buff, count, _post_func, \ | |
218 | attr, &vlan->_name, \ | |
219 | bat_priv->soft_iface); \ | |
f138694b | 220 | \ |
9c3bf081 | 221 | batadv_softif_vlan_put(vlan); \ |
90f4435d AQ |
222 | return res; \ |
223 | } | |
224 | ||
225 | #define BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
226 | ssize_t batadv_show_vlan_##_name(struct kobject *kobj, \ | |
227 | struct attribute *attr, char *buff) \ | |
228 | { \ | |
229 | struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\ | |
230 | struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \ | |
231 | kobj); \ | |
232 | size_t res = sprintf(buff, "%s\n", \ | |
233 | atomic_read(&vlan->_name) == 0 ? \ | |
234 | "disabled" : "enabled"); \ | |
f138694b | 235 | \ |
9c3bf081 | 236 | batadv_softif_vlan_put(vlan); \ |
90f4435d AQ |
237 | return res; \ |
238 | } | |
239 | ||
240 | /* Use this, if you are going to turn a [name] in the vlan struct on or off */ | |
241 | #define BATADV_ATTR_VLAN_BOOL(_name, _mode, _post_func) \ | |
242 | static BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \ | |
243 | static BATADV_ATTR_VLAN_SHOW_BOOL(_name) \ | |
244 | static BATADV_ATTR_VLAN(_name, _mode, batadv_show_vlan_##_name, \ | |
245 | batadv_store_vlan_##_name) | |
0744ff8f LL |
246 | |
247 | #define BATADV_ATTR_HIF_STORE_UINT(_name, _var, _min, _max, _post_func) \ | |
248 | ssize_t batadv_store_##_name(struct kobject *kobj, \ | |
249 | struct attribute *attr, char *buff, \ | |
250 | size_t count) \ | |
251 | { \ | |
252 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ | |
253 | struct batadv_hard_iface *hard_iface; \ | |
254 | ssize_t length; \ | |
255 | \ | |
256 | hard_iface = batadv_hardif_get_by_netdev(net_dev); \ | |
257 | if (!hard_iface) \ | |
258 | return 0; \ | |
259 | \ | |
260 | length = __batadv_store_uint_attr(buff, count, _min, _max, \ | |
261 | _post_func, attr, \ | |
262 | &hard_iface->_var, net_dev); \ | |
263 | \ | |
264 | batadv_hardif_put(hard_iface); \ | |
265 | return length; \ | |
266 | } | |
267 | ||
268 | #define BATADV_ATTR_HIF_SHOW_UINT(_name, _var) \ | |
269 | ssize_t batadv_show_##_name(struct kobject *kobj, \ | |
270 | struct attribute *attr, char *buff) \ | |
271 | { \ | |
272 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \ | |
273 | struct batadv_hard_iface *hard_iface; \ | |
274 | ssize_t length; \ | |
275 | \ | |
276 | hard_iface = batadv_hardif_get_by_netdev(net_dev); \ | |
277 | if (!hard_iface) \ | |
278 | return 0; \ | |
279 | \ | |
280 | length = sprintf(buff, "%i\n", atomic_read(&hard_iface->_var)); \ | |
281 | \ | |
282 | batadv_hardif_put(hard_iface); \ | |
283 | return length; \ | |
284 | } | |
285 | ||
286 | /* Use this, if you are going to set [name] in hard_iface to an | |
287 | * unsigned integer value | |
288 | */ | |
289 | #define BATADV_ATTR_HIF_UINT(_name, _var, _mode, _min, _max, _post_func)\ | |
290 | static BATADV_ATTR_HIF_STORE_UINT(_name, _var, _min, \ | |
291 | _max, _post_func) \ | |
292 | static BATADV_ATTR_HIF_SHOW_UINT(_name, _var) \ | |
293 | static BATADV_ATTR(_name, _mode, batadv_show_##_name, \ | |
294 | batadv_store_##_name) | |
c6c8fea2 | 295 | |
0ff9b86f SE |
296 | static int batadv_store_bool_attr(char *buff, size_t count, |
297 | struct net_device *net_dev, | |
9e728e84 SW |
298 | const char *attr_name, atomic_t *attr, |
299 | bool *changed) | |
c6c8fea2 SE |
300 | { |
301 | int enabled = -1; | |
302 | ||
9e728e84 SW |
303 | *changed = false; |
304 | ||
c6c8fea2 SE |
305 | if (buff[count - 1] == '\n') |
306 | buff[count - 1] = '\0'; | |
307 | ||
308 | if ((strncmp(buff, "1", 2) == 0) || | |
309 | (strncmp(buff, "enable", 7) == 0) || | |
310 | (strncmp(buff, "enabled", 8) == 0)) | |
311 | enabled = 1; | |
312 | ||
313 | if ((strncmp(buff, "0", 2) == 0) || | |
314 | (strncmp(buff, "disable", 8) == 0) || | |
315 | (strncmp(buff, "disabled", 9) == 0)) | |
316 | enabled = 0; | |
317 | ||
318 | if (enabled < 0) { | |
3e34819e SE |
319 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
320 | attr_name, buff); | |
c6c8fea2 SE |
321 | return -EINVAL; |
322 | } | |
323 | ||
324 | if (atomic_read(attr) == enabled) | |
325 | return count; | |
326 | ||
3e34819e SE |
327 | batadv_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name, |
328 | atomic_read(attr) == 1 ? "enabled" : "disabled", | |
329 | enabled == 1 ? "enabled" : "disabled"); | |
c6c8fea2 | 330 | |
9e728e84 SW |
331 | *changed = true; |
332 | ||
95c96174 | 333 | atomic_set(attr, (unsigned int)enabled); |
c6c8fea2 SE |
334 | return count; |
335 | } | |
336 | ||
0ff9b86f SE |
337 | static inline ssize_t |
338 | __batadv_store_bool_attr(char *buff, size_t count, | |
339 | void (*post_func)(struct net_device *), | |
340 | struct attribute *attr, | |
341 | atomic_t *attr_store, struct net_device *net_dev) | |
c6c8fea2 | 342 | { |
9e728e84 | 343 | bool changed; |
c6c8fea2 SE |
344 | int ret; |
345 | ||
0ff9b86f | 346 | ret = batadv_store_bool_attr(buff, count, net_dev, attr->name, |
9e728e84 SW |
347 | attr_store, &changed); |
348 | if (post_func && changed) | |
c6c8fea2 SE |
349 | post_func(net_dev); |
350 | ||
351 | return ret; | |
352 | } | |
353 | ||
0ff9b86f SE |
354 | static int batadv_store_uint_attr(const char *buff, size_t count, |
355 | struct net_device *net_dev, | |
356 | const char *attr_name, | |
357 | unsigned int min, unsigned int max, | |
358 | atomic_t *attr) | |
c6c8fea2 SE |
359 | { |
360 | unsigned long uint_val; | |
361 | int ret; | |
362 | ||
25a92b13 | 363 | ret = kstrtoul(buff, 10, &uint_val); |
c6c8fea2 | 364 | if (ret) { |
3e34819e SE |
365 | batadv_info(net_dev, "%s: Invalid parameter received: %s\n", |
366 | attr_name, buff); | |
c6c8fea2 SE |
367 | return -EINVAL; |
368 | } | |
369 | ||
370 | if (uint_val < min) { | |
3e34819e SE |
371 | batadv_info(net_dev, "%s: Value is too small: %lu min: %u\n", |
372 | attr_name, uint_val, min); | |
c6c8fea2 SE |
373 | return -EINVAL; |
374 | } | |
375 | ||
376 | if (uint_val > max) { | |
3e34819e SE |
377 | batadv_info(net_dev, "%s: Value is too big: %lu max: %u\n", |
378 | attr_name, uint_val, max); | |
c6c8fea2 SE |
379 | return -EINVAL; |
380 | } | |
381 | ||
382 | if (atomic_read(attr) == uint_val) | |
383 | return count; | |
384 | ||
3e34819e SE |
385 | batadv_info(net_dev, "%s: Changing from: %i to: %lu\n", |
386 | attr_name, atomic_read(attr), uint_val); | |
c6c8fea2 SE |
387 | |
388 | atomic_set(attr, uint_val); | |
389 | return count; | |
390 | } | |
391 | ||
c149ca72 AQ |
392 | static ssize_t __batadv_store_uint_attr(const char *buff, size_t count, |
393 | int min, int max, | |
394 | void (*post_func)(struct net_device *), | |
395 | const struct attribute *attr, | |
396 | atomic_t *attr_store, | |
397 | struct net_device *net_dev) | |
c6c8fea2 SE |
398 | { |
399 | int ret; | |
400 | ||
0ff9b86f SE |
401 | ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max, |
402 | attr_store); | |
c6c8fea2 SE |
403 | if (post_func && ret) |
404 | post_func(net_dev); | |
405 | ||
406 | return ret; | |
407 | } | |
408 | ||
0ff9b86f SE |
409 | static ssize_t batadv_show_bat_algo(struct kobject *kobj, |
410 | struct attribute *attr, char *buff) | |
ea3d2fd1 | 411 | { |
56303d34 | 412 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
f138694b | 413 | |
ea3d2fd1 ML |
414 | return sprintf(buff, "%s\n", bat_priv->bat_algo_ops->name); |
415 | } | |
416 | ||
4e820e72 | 417 | static void batadv_post_gw_reselect(struct net_device *net_dev) |
c6c8fea2 | 418 | { |
56303d34 | 419 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
f138694b | 420 | |
4e820e72 | 421 | batadv_gw_reselect(bat_priv); |
c6c8fea2 SE |
422 | } |
423 | ||
0ff9b86f SE |
424 | static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr, |
425 | char *buff) | |
c6c8fea2 | 426 | { |
56303d34 | 427 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
c6c8fea2 SE |
428 | int bytes_written; |
429 | ||
3a24a63e | 430 | switch (atomic_read(&bat_priv->gw.mode)) { |
cd646ab1 | 431 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 SE |
432 | bytes_written = sprintf(buff, "%s\n", |
433 | BATADV_GW_MODE_CLIENT_NAME); | |
c6c8fea2 | 434 | break; |
cd646ab1 | 435 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 SE |
436 | bytes_written = sprintf(buff, "%s\n", |
437 | BATADV_GW_MODE_SERVER_NAME); | |
c6c8fea2 SE |
438 | break; |
439 | default: | |
97ea4ba1 SE |
440 | bytes_written = sprintf(buff, "%s\n", |
441 | BATADV_GW_MODE_OFF_NAME); | |
c6c8fea2 SE |
442 | break; |
443 | } | |
444 | ||
445 | return bytes_written; | |
446 | } | |
447 | ||
0ff9b86f SE |
448 | static ssize_t batadv_store_gw_mode(struct kobject *kobj, |
449 | struct attribute *attr, char *buff, | |
450 | size_t count) | |
c6c8fea2 | 451 | { |
0ff9b86f | 452 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 453 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
c6c8fea2 SE |
454 | char *curr_gw_mode_str; |
455 | int gw_mode_tmp = -1; | |
456 | ||
457 | if (buff[count - 1] == '\n') | |
458 | buff[count - 1] = '\0'; | |
459 | ||
97ea4ba1 SE |
460 | if (strncmp(buff, BATADV_GW_MODE_OFF_NAME, |
461 | strlen(BATADV_GW_MODE_OFF_NAME)) == 0) | |
cd646ab1 | 462 | gw_mode_tmp = BATADV_GW_MODE_OFF; |
c6c8fea2 | 463 | |
97ea4ba1 SE |
464 | if (strncmp(buff, BATADV_GW_MODE_CLIENT_NAME, |
465 | strlen(BATADV_GW_MODE_CLIENT_NAME)) == 0) | |
cd646ab1 | 466 | gw_mode_tmp = BATADV_GW_MODE_CLIENT; |
c6c8fea2 | 467 | |
97ea4ba1 SE |
468 | if (strncmp(buff, BATADV_GW_MODE_SERVER_NAME, |
469 | strlen(BATADV_GW_MODE_SERVER_NAME)) == 0) | |
cd646ab1 | 470 | gw_mode_tmp = BATADV_GW_MODE_SERVER; |
c6c8fea2 SE |
471 | |
472 | if (gw_mode_tmp < 0) { | |
3e34819e SE |
473 | batadv_info(net_dev, |
474 | "Invalid parameter for 'gw mode' setting received: %s\n", | |
475 | buff); | |
c6c8fea2 SE |
476 | return -EINVAL; |
477 | } | |
478 | ||
3a24a63e | 479 | if (atomic_read(&bat_priv->gw.mode) == gw_mode_tmp) |
c6c8fea2 SE |
480 | return count; |
481 | ||
3a24a63e | 482 | switch (atomic_read(&bat_priv->gw.mode)) { |
cd646ab1 | 483 | case BATADV_GW_MODE_CLIENT: |
97ea4ba1 | 484 | curr_gw_mode_str = BATADV_GW_MODE_CLIENT_NAME; |
c6c8fea2 | 485 | break; |
cd646ab1 | 486 | case BATADV_GW_MODE_SERVER: |
97ea4ba1 | 487 | curr_gw_mode_str = BATADV_GW_MODE_SERVER_NAME; |
c6c8fea2 SE |
488 | break; |
489 | default: | |
97ea4ba1 | 490 | curr_gw_mode_str = BATADV_GW_MODE_OFF_NAME; |
c6c8fea2 SE |
491 | break; |
492 | } | |
493 | ||
3e34819e SE |
494 | batadv_info(net_dev, "Changing gw mode from: %s to: %s\n", |
495 | curr_gw_mode_str, buff); | |
c6c8fea2 | 496 | |
f3163181 AQ |
497 | /* Invoking batadv_gw_reselect() is not enough to really de-select the |
498 | * current GW. It will only instruct the gateway client code to perform | |
499 | * a re-election the next time that this is needed. | |
500 | * | |
501 | * When gw client mode is being switched off the current GW must be | |
502 | * de-selected explicitly otherwise no GW_ADD uevent is thrown on | |
503 | * client mode re-activation. This is operation is performed in | |
504 | * batadv_gw_check_client_stop(). | |
505 | */ | |
4e820e72 | 506 | batadv_gw_reselect(bat_priv); |
c6eaa3f0 AQ |
507 | /* always call batadv_gw_check_client_stop() before changing the gateway |
508 | * state | |
509 | */ | |
510 | batadv_gw_check_client_stop(bat_priv); | |
3a24a63e | 511 | atomic_set(&bat_priv->gw.mode, (unsigned int)gw_mode_tmp); |
414254e3 | 512 | batadv_gw_tvlv_container_update(bat_priv); |
c6c8fea2 SE |
513 | return count; |
514 | } | |
515 | ||
0ff9b86f SE |
516 | static ssize_t batadv_show_gw_bwidth(struct kobject *kobj, |
517 | struct attribute *attr, char *buff) | |
c6c8fea2 | 518 | { |
56303d34 | 519 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); |
6b5e971a | 520 | u32 down, up; |
414254e3 ML |
521 | |
522 | down = atomic_read(&bat_priv->gw.bandwidth_down); | |
523 | up = atomic_read(&bat_priv->gw.bandwidth_up); | |
524 | ||
525 | return sprintf(buff, "%u.%u/%u.%u MBit\n", down / 10, | |
526 | down % 10, up / 10, up % 10); | |
c6c8fea2 SE |
527 | } |
528 | ||
0ff9b86f SE |
529 | static ssize_t batadv_store_gw_bwidth(struct kobject *kobj, |
530 | struct attribute *attr, char *buff, | |
531 | size_t count) | |
c6c8fea2 | 532 | { |
0ff9b86f | 533 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
c6c8fea2 SE |
534 | |
535 | if (buff[count - 1] == '\n') | |
536 | buff[count - 1] = '\0'; | |
537 | ||
84d5e5e0 | 538 | return batadv_gw_bandwidth_set(net_dev, buff, count); |
c6c8fea2 SE |
539 | } |
540 | ||
c42edfe3 AQ |
541 | /** |
542 | * batadv_show_isolation_mark - print the current isolation mark/mask | |
543 | * @kobj: kobject representing the private mesh sysfs directory | |
544 | * @attr: the batman-adv attribute the user is interacting with | |
545 | * @buff: the buffer that will contain the data to send back to the user | |
546 | * | |
62fe710f | 547 | * Return: the number of bytes written into 'buff' on success or a negative |
c42edfe3 AQ |
548 | * error code in case of failure |
549 | */ | |
550 | static ssize_t batadv_show_isolation_mark(struct kobject *kobj, | |
551 | struct attribute *attr, char *buff) | |
552 | { | |
553 | struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); | |
554 | ||
555 | return sprintf(buff, "%#.8x/%#.8x\n", bat_priv->isolation_mark, | |
556 | bat_priv->isolation_mark_mask); | |
557 | } | |
558 | ||
559 | /** | |
560 | * batadv_store_isolation_mark - parse and store the isolation mark/mask entered | |
561 | * by the user | |
562 | * @kobj: kobject representing the private mesh sysfs directory | |
563 | * @attr: the batman-adv attribute the user is interacting with | |
564 | * @buff: the buffer containing the user data | |
565 | * @count: number of bytes in the buffer | |
566 | * | |
62fe710f | 567 | * Return: 'count' on success or a negative error code in case of failure |
c42edfe3 AQ |
568 | */ |
569 | static ssize_t batadv_store_isolation_mark(struct kobject *kobj, | |
570 | struct attribute *attr, char *buff, | |
571 | size_t count) | |
572 | { | |
573 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); | |
574 | struct batadv_priv *bat_priv = netdev_priv(net_dev); | |
6b5e971a | 575 | u32 mark, mask; |
c42edfe3 AQ |
576 | char *mask_ptr; |
577 | ||
578 | /* parse the mask if it has been specified, otherwise assume the mask is | |
579 | * the biggest possible | |
580 | */ | |
581 | mask = 0xFFFFFFFF; | |
582 | mask_ptr = strchr(buff, '/'); | |
583 | if (mask_ptr) { | |
584 | *mask_ptr = '\0'; | |
585 | mask_ptr++; | |
586 | ||
587 | /* the mask must be entered in hex base as it is going to be a | |
588 | * bitmask and not a prefix length | |
589 | */ | |
590 | if (kstrtou32(mask_ptr, 16, &mask) < 0) | |
591 | return -EINVAL; | |
592 | } | |
593 | ||
594 | /* the mark can be entered in any base */ | |
595 | if (kstrtou32(buff, 0, &mark) < 0) | |
596 | return -EINVAL; | |
597 | ||
598 | bat_priv->isolation_mark_mask = mask; | |
599 | /* erase bits not covered by the mask */ | |
600 | bat_priv->isolation_mark = mark & bat_priv->isolation_mark_mask; | |
601 | ||
602 | batadv_info(net_dev, | |
603 | "New skb mark for extended isolation: %#.8x/%#.8x\n", | |
604 | bat_priv->isolation_mark, bat_priv->isolation_mark_mask); | |
605 | ||
606 | return count; | |
607 | } | |
608 | ||
347c80f0 SE |
609 | BATADV_ATTR_SIF_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL); |
610 | BATADV_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL); | |
7a5cc242 | 611 | #ifdef CONFIG_BATMAN_ADV_BLA |
d68081a2 SW |
612 | BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, |
613 | batadv_bla_status_update); | |
7a5cc242 | 614 | #endif |
33af49ad | 615 | #ifdef CONFIG_BATMAN_ADV_DAT |
17cf0ea4 ML |
616 | BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, |
617 | batadv_dat_status_update); | |
33af49ad | 618 | #endif |
347c80f0 | 619 | BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu); |
347c80f0 SE |
620 | static BATADV_ATTR(routing_algo, S_IRUGO, batadv_show_bat_algo, NULL); |
621 | static BATADV_ATTR(gw_mode, S_IRUGO | S_IWUSR, batadv_show_gw_mode, | |
622 | batadv_store_gw_mode); | |
6f70eb75 AQ |
623 | BATADV_ATTR_SIF_UINT(orig_interval, orig_interval, S_IRUGO | S_IWUSR, |
624 | 2 * BATADV_JITTER, INT_MAX, NULL); | |
625 | BATADV_ATTR_SIF_UINT(hop_penalty, hop_penalty, S_IRUGO | S_IWUSR, 0, | |
626 | BATADV_TQ_MAX_VALUE, NULL); | |
3a24a63e | 627 | BATADV_ATTR_SIF_UINT(gw_sel_class, gw.sel_class, S_IRUGO | S_IWUSR, 1, |
6f70eb75 | 628 | BATADV_TQ_MAX_VALUE, batadv_post_gw_reselect); |
347c80f0 SE |
629 | static BATADV_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, batadv_show_gw_bwidth, |
630 | batadv_store_gw_bwidth); | |
1d8ab8d3 LL |
631 | #ifdef CONFIG_BATMAN_ADV_MCAST |
632 | BATADV_ATTR_SIF_BOOL(multicast_mode, S_IRUGO | S_IWUSR, NULL); | |
633 | #endif | |
c6c8fea2 | 634 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
6f70eb75 AQ |
635 | BATADV_ATTR_SIF_UINT(log_level, log_level, S_IRUGO | S_IWUSR, 0, |
636 | BATADV_DBG_ALL, NULL); | |
c6c8fea2 | 637 | #endif |
d353d8d4 | 638 | #ifdef CONFIG_BATMAN_ADV_NC |
3f4841ff ML |
639 | BATADV_ATTR_SIF_BOOL(network_coding, S_IRUGO | S_IWUSR, |
640 | batadv_nc_status_update); | |
d353d8d4 | 641 | #endif |
c42edfe3 AQ |
642 | static BATADV_ATTR(isolation_mark, S_IRUGO | S_IWUSR, |
643 | batadv_show_isolation_mark, batadv_store_isolation_mark); | |
c6c8fea2 | 644 | |
b4d66b87 | 645 | static struct batadv_attribute *batadv_mesh_attrs[] = { |
0ff9b86f SE |
646 | &batadv_attr_aggregated_ogms, |
647 | &batadv_attr_bonding, | |
7a5cc242 | 648 | #ifdef CONFIG_BATMAN_ADV_BLA |
0ff9b86f | 649 | &batadv_attr_bridge_loop_avoidance, |
33af49ad AQ |
650 | #endif |
651 | #ifdef CONFIG_BATMAN_ADV_DAT | |
652 | &batadv_attr_distributed_arp_table, | |
1d8ab8d3 LL |
653 | #endif |
654 | #ifdef CONFIG_BATMAN_ADV_MCAST | |
655 | &batadv_attr_multicast_mode, | |
7a5cc242 | 656 | #endif |
0ff9b86f | 657 | &batadv_attr_fragmentation, |
0ff9b86f SE |
658 | &batadv_attr_routing_algo, |
659 | &batadv_attr_gw_mode, | |
660 | &batadv_attr_orig_interval, | |
661 | &batadv_attr_hop_penalty, | |
662 | &batadv_attr_gw_sel_class, | |
663 | &batadv_attr_gw_bandwidth, | |
c6c8fea2 | 664 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
0ff9b86f | 665 | &batadv_attr_log_level, |
d353d8d4 MH |
666 | #endif |
667 | #ifdef CONFIG_BATMAN_ADV_NC | |
668 | &batadv_attr_network_coding, | |
c6c8fea2 | 669 | #endif |
c42edfe3 | 670 | &batadv_attr_isolation_mark, |
c6c8fea2 SE |
671 | NULL, |
672 | }; | |
673 | ||
b8cbd81d AQ |
674 | BATADV_ATTR_VLAN_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL); |
675 | ||
f34ac9d4 | 676 | /* array of vlan specific sysfs attributes */ |
90f4435d | 677 | static struct batadv_attribute *batadv_vlan_attrs[] = { |
b8cbd81d | 678 | &batadv_attr_vlan_ap_isolation, |
90f4435d AQ |
679 | NULL, |
680 | }; | |
681 | ||
5853e22c | 682 | int batadv_sysfs_add_meshif(struct net_device *dev) |
c6c8fea2 SE |
683 | { |
684 | struct kobject *batif_kobject = &dev->dev.kobj; | |
56303d34 | 685 | struct batadv_priv *bat_priv = netdev_priv(dev); |
b4d66b87 | 686 | struct batadv_attribute **bat_attr; |
c6c8fea2 SE |
687 | int err; |
688 | ||
036cbfeb | 689 | bat_priv->mesh_obj = kobject_create_and_add(BATADV_SYSFS_IF_MESH_SUBDIR, |
c6c8fea2 SE |
690 | batif_kobject); |
691 | if (!bat_priv->mesh_obj) { | |
3e34819e | 692 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
036cbfeb | 693 | BATADV_SYSFS_IF_MESH_SUBDIR); |
c6c8fea2 SE |
694 | goto out; |
695 | } | |
696 | ||
0ff9b86f | 697 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) { |
c6c8fea2 SE |
698 | err = sysfs_create_file(bat_priv->mesh_obj, |
699 | &((*bat_attr)->attr)); | |
700 | if (err) { | |
3e34819e | 701 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
036cbfeb | 702 | dev->name, BATADV_SYSFS_IF_MESH_SUBDIR, |
3e34819e | 703 | ((*bat_attr)->attr).name); |
c6c8fea2 SE |
704 | goto rem_attr; |
705 | } | |
706 | } | |
707 | ||
708 | return 0; | |
709 | ||
710 | rem_attr: | |
0ff9b86f | 711 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
712 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
713 | ||
714 | kobject_put(bat_priv->mesh_obj); | |
715 | bat_priv->mesh_obj = NULL; | |
716 | out: | |
717 | return -ENOMEM; | |
718 | } | |
719 | ||
5853e22c | 720 | void batadv_sysfs_del_meshif(struct net_device *dev) |
c6c8fea2 | 721 | { |
56303d34 | 722 | struct batadv_priv *bat_priv = netdev_priv(dev); |
b4d66b87 | 723 | struct batadv_attribute **bat_attr; |
c6c8fea2 | 724 | |
0ff9b86f | 725 | for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
726 | sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr)); |
727 | ||
728 | kobject_put(bat_priv->mesh_obj); | |
729 | bat_priv->mesh_obj = NULL; | |
730 | } | |
731 | ||
90f4435d AQ |
732 | /** |
733 | * batadv_sysfs_add_vlan - add all the needed sysfs objects for the new vlan | |
734 | * @dev: netdev of the mesh interface | |
735 | * @vlan: private data of the newly added VLAN interface | |
736 | * | |
62fe710f | 737 | * Return: 0 on success and -ENOMEM if any of the structure allocations fails. |
90f4435d AQ |
738 | */ |
739 | int batadv_sysfs_add_vlan(struct net_device *dev, | |
740 | struct batadv_softif_vlan *vlan) | |
741 | { | |
742 | char vlan_subdir[sizeof(BATADV_SYSFS_VLAN_SUBDIR_PREFIX) + 5]; | |
743 | struct batadv_priv *bat_priv = netdev_priv(dev); | |
744 | struct batadv_attribute **bat_attr; | |
745 | int err; | |
746 | ||
747 | if (vlan->vid & BATADV_VLAN_HAS_TAG) { | |
748 | sprintf(vlan_subdir, BATADV_SYSFS_VLAN_SUBDIR_PREFIX "%hu", | |
749 | vlan->vid & VLAN_VID_MASK); | |
750 | ||
751 | vlan->kobj = kobject_create_and_add(vlan_subdir, | |
752 | bat_priv->mesh_obj); | |
753 | if (!vlan->kobj) { | |
754 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", | |
755 | dev->name, vlan_subdir); | |
756 | goto out; | |
757 | } | |
758 | } else { | |
759 | /* the untagged LAN uses the root folder to store its "VLAN | |
760 | * specific attributes" | |
761 | */ | |
762 | vlan->kobj = bat_priv->mesh_obj; | |
763 | kobject_get(bat_priv->mesh_obj); | |
764 | } | |
765 | ||
766 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) { | |
767 | err = sysfs_create_file(vlan->kobj, | |
768 | &((*bat_attr)->attr)); | |
769 | if (err) { | |
770 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", | |
771 | dev->name, vlan_subdir, | |
772 | ((*bat_attr)->attr).name); | |
773 | goto rem_attr; | |
774 | } | |
775 | } | |
776 | ||
777 | return 0; | |
778 | ||
779 | rem_attr: | |
780 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) | |
781 | sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr)); | |
782 | ||
783 | kobject_put(vlan->kobj); | |
784 | vlan->kobj = NULL; | |
785 | out: | |
786 | return -ENOMEM; | |
787 | } | |
788 | ||
789 | /** | |
790 | * batadv_sysfs_del_vlan - remove all the sysfs objects for a given VLAN | |
791 | * @bat_priv: the bat priv with all the soft interface information | |
792 | * @vlan: the private data of the VLAN to destroy | |
793 | */ | |
794 | void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv, | |
795 | struct batadv_softif_vlan *vlan) | |
796 | { | |
797 | struct batadv_attribute **bat_attr; | |
798 | ||
799 | for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) | |
800 | sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr)); | |
801 | ||
802 | kobject_put(vlan->kobj); | |
803 | vlan->kobj = NULL; | |
804 | } | |
805 | ||
0ff9b86f SE |
806 | static ssize_t batadv_show_mesh_iface(struct kobject *kobj, |
807 | struct attribute *attr, char *buff) | |
c6c8fea2 | 808 | { |
0ff9b86f | 809 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 810 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 | 811 | ssize_t length; |
e9a4f295 | 812 | const char *ifname; |
c6c8fea2 | 813 | |
56303d34 | 814 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 815 | if (!hard_iface) |
c6c8fea2 SE |
816 | return 0; |
817 | ||
e9a4f295 SE |
818 | if (hard_iface->if_status == BATADV_IF_NOT_IN_USE) |
819 | ifname = "none"; | |
820 | else | |
821 | ifname = hard_iface->soft_iface->name; | |
822 | ||
823 | length = sprintf(buff, "%s\n", ifname); | |
c6c8fea2 | 824 | |
82047ad7 | 825 | batadv_hardif_put(hard_iface); |
c6c8fea2 SE |
826 | |
827 | return length; | |
828 | } | |
829 | ||
0ff9b86f SE |
830 | static ssize_t batadv_store_mesh_iface(struct kobject *kobj, |
831 | struct attribute *attr, char *buff, | |
832 | size_t count) | |
c6c8fea2 | 833 | { |
0ff9b86f | 834 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
2cd45a06 | 835 | struct net *net = dev_net(net_dev); |
56303d34 | 836 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 | 837 | int status_tmp = -1; |
ed75ccbe | 838 | int ret = count; |
c6c8fea2 | 839 | |
56303d34 | 840 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 841 | if (!hard_iface) |
c6c8fea2 SE |
842 | return count; |
843 | ||
844 | if (buff[count - 1] == '\n') | |
845 | buff[count - 1] = '\0'; | |
846 | ||
847 | if (strlen(buff) >= IFNAMSIZ) { | |
86ceb360 SE |
848 | pr_err("Invalid parameter for 'mesh_iface' setting received: interface name too long '%s'\n", |
849 | buff); | |
82047ad7 | 850 | batadv_hardif_put(hard_iface); |
c6c8fea2 SE |
851 | return -EINVAL; |
852 | } | |
853 | ||
854 | if (strncmp(buff, "none", 4) == 0) | |
e9a4f295 | 855 | status_tmp = BATADV_IF_NOT_IN_USE; |
c6c8fea2 | 856 | else |
e9a4f295 | 857 | status_tmp = BATADV_IF_I_WANT_YOU; |
c6c8fea2 | 858 | |
e6c10f43 ML |
859 | if (hard_iface->if_status == status_tmp) |
860 | goto out; | |
861 | ||
862 | if ((hard_iface->soft_iface) && | |
863 | (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0)) | |
ed75ccbe | 864 | goto out; |
c6c8fea2 | 865 | |
ac16d148 | 866 | rtnl_lock(); |
3a4375a9 | 867 | |
e9a4f295 | 868 | if (status_tmp == BATADV_IF_NOT_IN_USE) { |
a15fd361 SE |
869 | batadv_hardif_disable_interface(hard_iface, |
870 | BATADV_IF_CLEANUP_AUTO); | |
3a4375a9 | 871 | goto unlock; |
c6c8fea2 SE |
872 | } |
873 | ||
874 | /* if the interface already is in use */ | |
e9a4f295 | 875 | if (hard_iface->if_status != BATADV_IF_NOT_IN_USE) |
a15fd361 SE |
876 | batadv_hardif_disable_interface(hard_iface, |
877 | BATADV_IF_CLEANUP_AUTO); | |
c6c8fea2 | 878 | |
2cd45a06 | 879 | ret = batadv_hardif_enable_interface(hard_iface, net, buff); |
c6c8fea2 | 880 | |
3a4375a9 SE |
881 | unlock: |
882 | rtnl_unlock(); | |
ed75ccbe | 883 | out: |
82047ad7 | 884 | batadv_hardif_put(hard_iface); |
c6c8fea2 SE |
885 | return ret; |
886 | } | |
887 | ||
0ff9b86f SE |
888 | static ssize_t batadv_show_iface_status(struct kobject *kobj, |
889 | struct attribute *attr, char *buff) | |
c6c8fea2 | 890 | { |
0ff9b86f | 891 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); |
56303d34 | 892 | struct batadv_hard_iface *hard_iface; |
c6c8fea2 SE |
893 | ssize_t length; |
894 | ||
56303d34 | 895 | hard_iface = batadv_hardif_get_by_netdev(net_dev); |
e6c10f43 | 896 | if (!hard_iface) |
c6c8fea2 SE |
897 | return 0; |
898 | ||
e6c10f43 | 899 | switch (hard_iface->if_status) { |
e9a4f295 | 900 | case BATADV_IF_TO_BE_REMOVED: |
c6c8fea2 SE |
901 | length = sprintf(buff, "disabling\n"); |
902 | break; | |
e9a4f295 | 903 | case BATADV_IF_INACTIVE: |
c6c8fea2 SE |
904 | length = sprintf(buff, "inactive\n"); |
905 | break; | |
e9a4f295 | 906 | case BATADV_IF_ACTIVE: |
c6c8fea2 SE |
907 | length = sprintf(buff, "active\n"); |
908 | break; | |
e9a4f295 | 909 | case BATADV_IF_TO_BE_ACTIVATED: |
c6c8fea2 SE |
910 | length = sprintf(buff, "enabling\n"); |
911 | break; | |
e9a4f295 | 912 | case BATADV_IF_NOT_IN_USE: |
c6c8fea2 SE |
913 | default: |
914 | length = sprintf(buff, "not in use\n"); | |
915 | break; | |
916 | } | |
917 | ||
82047ad7 | 918 | batadv_hardif_put(hard_iface); |
c6c8fea2 SE |
919 | |
920 | return length; | |
921 | } | |
922 | ||
0b5ecc68 AQ |
923 | #ifdef CONFIG_BATMAN_ADV_BATMAN_V |
924 | ||
925 | /** | |
926 | * batadv_store_throughput_override - parse and store throughput override | |
927 | * entered by the user | |
928 | * @kobj: kobject representing the private mesh sysfs directory | |
929 | * @attr: the batman-adv attribute the user is interacting with | |
930 | * @buff: the buffer containing the user data | |
931 | * @count: number of bytes in the buffer | |
932 | * | |
933 | * Return: 'count' on success or a negative error code in case of failure | |
934 | */ | |
935 | static ssize_t batadv_store_throughput_override(struct kobject *kobj, | |
936 | struct attribute *attr, | |
937 | char *buff, size_t count) | |
938 | { | |
939 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); | |
940 | struct batadv_hard_iface *hard_iface; | |
941 | u32 tp_override; | |
942 | u32 old_tp_override; | |
943 | bool ret; | |
944 | ||
945 | hard_iface = batadv_hardif_get_by_netdev(net_dev); | |
946 | if (!hard_iface) | |
947 | return -EINVAL; | |
948 | ||
949 | if (buff[count - 1] == '\n') | |
950 | buff[count - 1] = '\0'; | |
951 | ||
952 | ret = batadv_parse_throughput(net_dev, buff, "throughput_override", | |
953 | &tp_override); | |
954 | if (!ret) | |
955 | return count; | |
956 | ||
957 | old_tp_override = atomic_read(&hard_iface->bat_v.throughput_override); | |
958 | if (old_tp_override == tp_override) | |
959 | goto out; | |
960 | ||
961 | batadv_info(net_dev, "%s: Changing from: %u.%u MBit to: %u.%u MBit\n", | |
962 | "throughput_override", | |
963 | old_tp_override / 10, old_tp_override % 10, | |
964 | tp_override / 10, tp_override % 10); | |
965 | ||
966 | atomic_set(&hard_iface->bat_v.throughput_override, tp_override); | |
967 | ||
968 | out: | |
969 | batadv_hardif_put(hard_iface); | |
970 | return count; | |
971 | } | |
972 | ||
973 | static ssize_t batadv_show_throughput_override(struct kobject *kobj, | |
974 | struct attribute *attr, | |
975 | char *buff) | |
976 | { | |
977 | struct net_device *net_dev = batadv_kobj_to_netdev(kobj); | |
978 | struct batadv_hard_iface *hard_iface; | |
979 | u32 tp_override; | |
980 | ||
981 | hard_iface = batadv_hardif_get_by_netdev(net_dev); | |
982 | if (!hard_iface) | |
983 | return -EINVAL; | |
984 | ||
985 | tp_override = atomic_read(&hard_iface->bat_v.throughput_override); | |
986 | ||
987 | return sprintf(buff, "%u.%u MBit\n", tp_override / 10, | |
988 | tp_override % 10); | |
989 | } | |
990 | ||
991 | #endif | |
992 | ||
347c80f0 SE |
993 | static BATADV_ATTR(mesh_iface, S_IRUGO | S_IWUSR, batadv_show_mesh_iface, |
994 | batadv_store_mesh_iface); | |
995 | static BATADV_ATTR(iface_status, S_IRUGO, batadv_show_iface_status, NULL); | |
7f136cd4 LL |
996 | #ifdef CONFIG_BATMAN_ADV_BATMAN_V |
997 | BATADV_ATTR_HIF_UINT(elp_interval, bat_v.elp_interval, S_IRUGO | S_IWUSR, | |
998 | 2 * BATADV_JITTER, INT_MAX, NULL); | |
0b5ecc68 AQ |
999 | static BATADV_ATTR(throughput_override, S_IRUGO | S_IWUSR, |
1000 | batadv_show_throughput_override, | |
1001 | batadv_store_throughput_override); | |
7f136cd4 | 1002 | #endif |
c6c8fea2 | 1003 | |
b4d66b87 | 1004 | static struct batadv_attribute *batadv_batman_attrs[] = { |
0ff9b86f SE |
1005 | &batadv_attr_mesh_iface, |
1006 | &batadv_attr_iface_status, | |
7f136cd4 LL |
1007 | #ifdef CONFIG_BATMAN_ADV_BATMAN_V |
1008 | &batadv_attr_elp_interval, | |
0b5ecc68 | 1009 | &batadv_attr_throughput_override, |
7f136cd4 | 1010 | #endif |
c6c8fea2 SE |
1011 | NULL, |
1012 | }; | |
1013 | ||
5853e22c | 1014 | int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev) |
c6c8fea2 SE |
1015 | { |
1016 | struct kobject *hardif_kobject = &dev->dev.kobj; | |
b4d66b87 | 1017 | struct batadv_attribute **bat_attr; |
c6c8fea2 SE |
1018 | int err; |
1019 | ||
036cbfeb SE |
1020 | *hardif_obj = kobject_create_and_add(BATADV_SYSFS_IF_BAT_SUBDIR, |
1021 | hardif_kobject); | |
c6c8fea2 SE |
1022 | |
1023 | if (!*hardif_obj) { | |
3e34819e | 1024 | batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name, |
036cbfeb | 1025 | BATADV_SYSFS_IF_BAT_SUBDIR); |
c6c8fea2 SE |
1026 | goto out; |
1027 | } | |
1028 | ||
0ff9b86f | 1029 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) { |
c6c8fea2 SE |
1030 | err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr)); |
1031 | if (err) { | |
3e34819e | 1032 | batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n", |
036cbfeb | 1033 | dev->name, BATADV_SYSFS_IF_BAT_SUBDIR, |
3e34819e | 1034 | ((*bat_attr)->attr).name); |
c6c8fea2 SE |
1035 | goto rem_attr; |
1036 | } | |
1037 | } | |
1038 | ||
1039 | return 0; | |
1040 | ||
1041 | rem_attr: | |
0ff9b86f | 1042 | for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) |
c6c8fea2 SE |
1043 | sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr)); |
1044 | out: | |
1045 | return -ENOMEM; | |
1046 | } | |
1047 | ||
5853e22c | 1048 | void batadv_sysfs_del_hardif(struct kobject **hardif_obj) |
c6c8fea2 SE |
1049 | { |
1050 | kobject_put(*hardif_obj); | |
1051 | *hardif_obj = NULL; | |
1052 | } | |
c6bda689 | 1053 | |
56303d34 | 1054 | int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type, |
39c75a51 | 1055 | enum batadv_uev_action action, const char *data) |
c6bda689 | 1056 | { |
5346c35e | 1057 | int ret = -ENOMEM; |
c6bda689 AQ |
1058 | struct kobject *bat_kobj; |
1059 | char *uevent_env[4] = { NULL, NULL, NULL, NULL }; | |
1060 | ||
736292c2 | 1061 | bat_kobj = &bat_priv->soft_iface->dev.kobj; |
c6bda689 | 1062 | |
b98fe24c HS |
1063 | uevent_env[0] = kasprintf(GFP_ATOMIC, |
1064 | "%s%s", BATADV_UEV_TYPE_VAR, | |
1065 | batadv_uev_type_str[type]); | |
c6bda689 AQ |
1066 | if (!uevent_env[0]) |
1067 | goto out; | |
1068 | ||
b98fe24c HS |
1069 | uevent_env[1] = kasprintf(GFP_ATOMIC, |
1070 | "%s%s", BATADV_UEV_ACTION_VAR, | |
1071 | batadv_uev_action_str[action]); | |
c6bda689 AQ |
1072 | if (!uevent_env[1]) |
1073 | goto out; | |
1074 | ||
c6bda689 | 1075 | /* If the event is DEL, ignore the data field */ |
39c75a51 | 1076 | if (action != BATADV_UEV_DEL) { |
b98fe24c HS |
1077 | uevent_env[2] = kasprintf(GFP_ATOMIC, |
1078 | "%s%s", BATADV_UEV_DATA_VAR, data); | |
c6bda689 AQ |
1079 | if (!uevent_env[2]) |
1080 | goto out; | |
c6bda689 AQ |
1081 | } |
1082 | ||
1083 | ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env); | |
1084 | out: | |
1085 | kfree(uevent_env[0]); | |
1086 | kfree(uevent_env[1]); | |
1087 | kfree(uevent_env[2]); | |
1088 | ||
c6bda689 | 1089 | if (ret) |
39c75a51 | 1090 | batadv_dbg(BATADV_DBG_BATMAN, bat_priv, |
1eda58bf | 1091 | "Impossible to send uevent for (%s,%s,%s) event (err: %d)\n", |
0ff9b86f SE |
1092 | batadv_uev_type_str[type], |
1093 | batadv_uev_action_str[action], | |
39c75a51 | 1094 | (action == BATADV_UEV_DEL ? "NULL" : data), ret); |
c6bda689 AQ |
1095 | return ret; |
1096 | } |