2 * Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of version 2 of the GNU General Public
8 * License as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 #include "bat_sysfs.h"
24 #include "translation-table.h"
25 #include "originator.h"
26 #include "hard-interface.h"
27 #include "gateway_common.h"
28 #include "gateway_client.h"
31 static struct net_device *kobj_to_netdev(struct kobject *obj)
33 struct device *dev = container_of(obj->parent, struct device, kobj);
34 return to_net_dev(dev);
37 static struct bat_priv *kobj_to_batpriv(struct kobject *obj)
39 struct net_device *net_dev = kobj_to_netdev(obj);
40 return netdev_priv(net_dev);
43 #define UEV_TYPE_VAR "BATTYPE="
44 #define UEV_ACTION_VAR "BATACTION="
45 #define UEV_DATA_VAR "BATDATA="
47 static char *uev_action_str[] = {
53 static char *uev_type_str[] = {
57 /* Use this, if you have customized show and store functions */
58 #define BAT_ATTR(_name, _mode, _show, _store) \
59 struct bat_attribute bat_attr_##_name = { \
60 .attr = {.name = __stringify(_name), \
66 #define BAT_ATTR_STORE_BOOL(_name, _post_func) \
67 ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \
68 char *buff, size_t count) \
70 struct net_device *net_dev = kobj_to_netdev(kobj); \
71 struct bat_priv *bat_priv = netdev_priv(net_dev); \
72 return __store_bool_attr(buff, count, _post_func, attr, \
73 &bat_priv->_name, net_dev); \
76 #define BAT_ATTR_SHOW_BOOL(_name) \
77 ssize_t show_##_name(struct kobject *kobj, struct attribute *attr, \
80 struct bat_priv *bat_priv = kobj_to_batpriv(kobj); \
81 return sprintf(buff, "%s\n", \
82 atomic_read(&bat_priv->_name) == 0 ? \
83 "disabled" : "enabled"); \
86 /* Use this, if you are going to turn a [name] in bat_priv on or off */
87 #define BAT_ATTR_BOOL(_name, _mode, _post_func) \
88 static BAT_ATTR_STORE_BOOL(_name, _post_func) \
89 static BAT_ATTR_SHOW_BOOL(_name) \
90 static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
93 #define BAT_ATTR_STORE_UINT(_name, _min, _max, _post_func) \
94 ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \
95 char *buff, size_t count) \
97 struct net_device *net_dev = kobj_to_netdev(kobj); \
98 struct bat_priv *bat_priv = netdev_priv(net_dev); \
99 return __store_uint_attr(buff, count, _min, _max, _post_func, \
100 attr, &bat_priv->_name, net_dev); \
103 #define BAT_ATTR_SHOW_UINT(_name) \
104 ssize_t show_##_name(struct kobject *kobj, struct attribute *attr, \
107 struct bat_priv *bat_priv = kobj_to_batpriv(kobj); \
108 return sprintf(buff, "%i\n", atomic_read(&bat_priv->_name)); \
111 /* Use this, if you are going to set [name] in bat_priv to unsigned integer
113 #define BAT_ATTR_UINT(_name, _mode, _min, _max, _post_func) \
114 static BAT_ATTR_STORE_UINT(_name, _min, _max, _post_func) \
115 static BAT_ATTR_SHOW_UINT(_name) \
116 static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
119 static int store_bool_attr(char *buff, size_t count,
120 struct net_device *net_dev,
121 const char *attr_name, atomic_t *attr)
125 if (buff[count - 1] == '\n')
126 buff[count - 1] = '\0';
128 if ((strncmp(buff, "1", 2) == 0) ||
129 (strncmp(buff, "enable", 7) == 0) ||
130 (strncmp(buff, "enabled", 8) == 0))
133 if ((strncmp(buff, "0", 2) == 0) ||
134 (strncmp(buff, "disable", 8) == 0) ||
135 (strncmp(buff, "disabled", 9) == 0))
140 "%s: Invalid parameter received: %s\n",
145 if (atomic_read(attr) == enabled)
148 bat_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name,
149 atomic_read(attr) == 1 ? "enabled" : "disabled",
150 enabled == 1 ? "enabled" : "disabled");
152 atomic_set(attr, (unsigned)enabled);
156 static inline ssize_t __store_bool_attr(char *buff, size_t count,
157 void (*post_func)(struct net_device *),
158 struct attribute *attr,
159 atomic_t *attr_store, struct net_device *net_dev)
163 ret = store_bool_attr(buff, count, net_dev, attr->name, attr_store);
164 if (post_func && ret)
170 static int store_uint_attr(const char *buff, size_t count,
171 struct net_device *net_dev, const char *attr_name,
172 unsigned int min, unsigned int max, atomic_t *attr)
174 unsigned long uint_val;
177 ret = strict_strtoul(buff, 10, &uint_val);
180 "%s: Invalid parameter received: %s\n",
185 if (uint_val < min) {
186 bat_info(net_dev, "%s: Value is too small: %lu min: %u\n",
187 attr_name, uint_val, min);
191 if (uint_val > max) {
192 bat_info(net_dev, "%s: Value is too big: %lu max: %u\n",
193 attr_name, uint_val, max);
197 if (atomic_read(attr) == uint_val)
200 bat_info(net_dev, "%s: Changing from: %i to: %lu\n",
201 attr_name, atomic_read(attr), uint_val);
203 atomic_set(attr, uint_val);
207 static inline ssize_t __store_uint_attr(const char *buff, size_t count,
209 void (*post_func)(struct net_device *),
210 const struct attribute *attr,
211 atomic_t *attr_store, struct net_device *net_dev)
215 ret = store_uint_attr(buff, count, net_dev, attr->name,
216 min, max, attr_store);
217 if (post_func && ret)
223 static ssize_t show_vis_mode(struct kobject *kobj, struct attribute *attr,
226 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
227 int vis_mode = atomic_read(&bat_priv->vis_mode);
229 return sprintf(buff, "%s\n",
230 vis_mode == VIS_TYPE_CLIENT_UPDATE ?
231 "client" : "server");
234 static ssize_t store_vis_mode(struct kobject *kobj, struct attribute *attr,
235 char *buff, size_t count)
237 struct net_device *net_dev = kobj_to_netdev(kobj);
238 struct bat_priv *bat_priv = netdev_priv(net_dev);
240 int ret, vis_mode_tmp = -1;
242 ret = strict_strtoul(buff, 10, &val);
244 if (((count == 2) && (!ret) && (val == VIS_TYPE_CLIENT_UPDATE)) ||
245 (strncmp(buff, "client", 6) == 0) ||
246 (strncmp(buff, "off", 3) == 0))
247 vis_mode_tmp = VIS_TYPE_CLIENT_UPDATE;
249 if (((count == 2) && (!ret) && (val == VIS_TYPE_SERVER_SYNC)) ||
250 (strncmp(buff, "server", 6) == 0))
251 vis_mode_tmp = VIS_TYPE_SERVER_SYNC;
253 if (vis_mode_tmp < 0) {
254 if (buff[count - 1] == '\n')
255 buff[count - 1] = '\0';
258 "Invalid parameter for 'vis mode' setting received: "
263 if (atomic_read(&bat_priv->vis_mode) == vis_mode_tmp)
266 bat_info(net_dev, "Changing vis mode from: %s to: %s\n",
267 atomic_read(&bat_priv->vis_mode) == VIS_TYPE_CLIENT_UPDATE ?
268 "client" : "server", vis_mode_tmp == VIS_TYPE_CLIENT_UPDATE ?
269 "client" : "server");
271 atomic_set(&bat_priv->vis_mode, (unsigned)vis_mode_tmp);
275 static void post_gw_deselect(struct net_device *net_dev)
277 struct bat_priv *bat_priv = netdev_priv(net_dev);
278 gw_deselect(bat_priv);
281 static ssize_t show_gw_mode(struct kobject *kobj, struct attribute *attr,
284 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
287 switch (atomic_read(&bat_priv->gw_mode)) {
289 bytes_written = sprintf(buff, "%s\n", GW_MODE_CLIENT_NAME);
292 bytes_written = sprintf(buff, "%s\n", GW_MODE_SERVER_NAME);
295 bytes_written = sprintf(buff, "%s\n", GW_MODE_OFF_NAME);
299 return bytes_written;
302 static ssize_t store_gw_mode(struct kobject *kobj, struct attribute *attr,
303 char *buff, size_t count)
305 struct net_device *net_dev = kobj_to_netdev(kobj);
306 struct bat_priv *bat_priv = netdev_priv(net_dev);
307 char *curr_gw_mode_str;
308 int gw_mode_tmp = -1;
310 if (buff[count - 1] == '\n')
311 buff[count - 1] = '\0';
313 if (strncmp(buff, GW_MODE_OFF_NAME, strlen(GW_MODE_OFF_NAME)) == 0)
314 gw_mode_tmp = GW_MODE_OFF;
316 if (strncmp(buff, GW_MODE_CLIENT_NAME,
317 strlen(GW_MODE_CLIENT_NAME)) == 0)
318 gw_mode_tmp = GW_MODE_CLIENT;
320 if (strncmp(buff, GW_MODE_SERVER_NAME,
321 strlen(GW_MODE_SERVER_NAME)) == 0)
322 gw_mode_tmp = GW_MODE_SERVER;
324 if (gw_mode_tmp < 0) {
326 "Invalid parameter for 'gw mode' setting received: "
331 if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp)
334 switch (atomic_read(&bat_priv->gw_mode)) {
336 curr_gw_mode_str = GW_MODE_CLIENT_NAME;
339 curr_gw_mode_str = GW_MODE_SERVER_NAME;
342 curr_gw_mode_str = GW_MODE_OFF_NAME;
346 bat_info(net_dev, "Changing gw mode from: %s to: %s\n",
347 curr_gw_mode_str, buff);
349 gw_deselect(bat_priv);
350 atomic_set(&bat_priv->gw_mode, (unsigned)gw_mode_tmp);
354 static ssize_t show_gw_bwidth(struct kobject *kobj, struct attribute *attr,
357 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
359 int gw_bandwidth = atomic_read(&bat_priv->gw_bandwidth);
361 gw_bandwidth_to_kbit(gw_bandwidth, &down, &up);
362 return sprintf(buff, "%i%s/%i%s\n",
363 (down > 2048 ? down / 1024 : down),
364 (down > 2048 ? "MBit" : "KBit"),
365 (up > 2048 ? up / 1024 : up),
366 (up > 2048 ? "MBit" : "KBit"));
369 static ssize_t store_gw_bwidth(struct kobject *kobj, struct attribute *attr,
370 char *buff, size_t count)
372 struct net_device *net_dev = kobj_to_netdev(kobj);
374 if (buff[count - 1] == '\n')
375 buff[count - 1] = '\0';
377 return gw_bandwidth_set(net_dev, buff, count);
380 BAT_ATTR_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL);
381 BAT_ATTR_BOOL(bonding, S_IRUGO | S_IWUSR, NULL);
382 BAT_ATTR_BOOL(fragmentation, S_IRUGO | S_IWUSR, update_min_mtu);
383 BAT_ATTR_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL);
384 static BAT_ATTR(vis_mode, S_IRUGO | S_IWUSR, show_vis_mode, store_vis_mode);
385 static BAT_ATTR(gw_mode, S_IRUGO | S_IWUSR, show_gw_mode, store_gw_mode);
386 BAT_ATTR_UINT(orig_interval, S_IRUGO | S_IWUSR, 2 * JITTER, INT_MAX, NULL);
387 BAT_ATTR_UINT(hop_penalty, S_IRUGO | S_IWUSR, 0, TQ_MAX_VALUE, NULL);
388 BAT_ATTR_UINT(gw_sel_class, S_IRUGO | S_IWUSR, 1, TQ_MAX_VALUE,
390 static BAT_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, show_gw_bwidth,
392 #ifdef CONFIG_BATMAN_ADV_DEBUG
393 BAT_ATTR_UINT(log_level, S_IRUGO | S_IWUSR, 0, 7, NULL);
396 static struct bat_attribute *mesh_attrs[] = {
397 &bat_attr_aggregated_ogms,
399 &bat_attr_fragmentation,
400 &bat_attr_ap_isolation,
403 &bat_attr_orig_interval,
404 &bat_attr_hop_penalty,
405 &bat_attr_gw_sel_class,
406 &bat_attr_gw_bandwidth,
407 #ifdef CONFIG_BATMAN_ADV_DEBUG
413 int sysfs_add_meshif(struct net_device *dev)
415 struct kobject *batif_kobject = &dev->dev.kobj;
416 struct bat_priv *bat_priv = netdev_priv(dev);
417 struct bat_attribute **bat_attr;
420 bat_priv->mesh_obj = kobject_create_and_add(SYSFS_IF_MESH_SUBDIR,
422 if (!bat_priv->mesh_obj) {
423 bat_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
424 SYSFS_IF_MESH_SUBDIR);
428 for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr) {
429 err = sysfs_create_file(bat_priv->mesh_obj,
430 &((*bat_attr)->attr));
432 bat_err(dev, "Can't add sysfs file: %s/%s/%s\n",
433 dev->name, SYSFS_IF_MESH_SUBDIR,
434 ((*bat_attr)->attr).name);
442 for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
443 sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
445 kobject_put(bat_priv->mesh_obj);
446 bat_priv->mesh_obj = NULL;
451 void sysfs_del_meshif(struct net_device *dev)
453 struct bat_priv *bat_priv = netdev_priv(dev);
454 struct bat_attribute **bat_attr;
456 for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
457 sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
459 kobject_put(bat_priv->mesh_obj);
460 bat_priv->mesh_obj = NULL;
463 static ssize_t show_mesh_iface(struct kobject *kobj, struct attribute *attr,
466 struct net_device *net_dev = kobj_to_netdev(kobj);
467 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
473 length = sprintf(buff, "%s\n", hard_iface->if_status == IF_NOT_IN_USE ?
474 "none" : hard_iface->soft_iface->name);
476 hardif_free_ref(hard_iface);
481 static ssize_t store_mesh_iface(struct kobject *kobj, struct attribute *attr,
482 char *buff, size_t count)
484 struct net_device *net_dev = kobj_to_netdev(kobj);
485 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
492 if (buff[count - 1] == '\n')
493 buff[count - 1] = '\0';
495 if (strlen(buff) >= IFNAMSIZ) {
496 pr_err("Invalid parameter for 'mesh_iface' setting received: "
497 "interface name too long '%s'\n", buff);
498 hardif_free_ref(hard_iface);
502 if (strncmp(buff, "none", 4) == 0)
503 status_tmp = IF_NOT_IN_USE;
505 status_tmp = IF_I_WANT_YOU;
507 if (hard_iface->if_status == status_tmp)
510 if ((hard_iface->soft_iface) &&
511 (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0))
514 if (!rtnl_trylock()) {
519 if (status_tmp == IF_NOT_IN_USE) {
520 hardif_disable_interface(hard_iface);
524 /* if the interface already is in use */
525 if (hard_iface->if_status != IF_NOT_IN_USE)
526 hardif_disable_interface(hard_iface);
528 ret = hardif_enable_interface(hard_iface, buff);
533 hardif_free_ref(hard_iface);
537 static ssize_t show_iface_status(struct kobject *kobj, struct attribute *attr,
540 struct net_device *net_dev = kobj_to_netdev(kobj);
541 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
547 switch (hard_iface->if_status) {
548 case IF_TO_BE_REMOVED:
549 length = sprintf(buff, "disabling\n");
552 length = sprintf(buff, "inactive\n");
555 length = sprintf(buff, "active\n");
557 case IF_TO_BE_ACTIVATED:
558 length = sprintf(buff, "enabling\n");
562 length = sprintf(buff, "not in use\n");
566 hardif_free_ref(hard_iface);
571 static BAT_ATTR(mesh_iface, S_IRUGO | S_IWUSR,
572 show_mesh_iface, store_mesh_iface);
573 static BAT_ATTR(iface_status, S_IRUGO, show_iface_status, NULL);
575 static struct bat_attribute *batman_attrs[] = {
576 &bat_attr_mesh_iface,
577 &bat_attr_iface_status,
581 int sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev)
583 struct kobject *hardif_kobject = &dev->dev.kobj;
584 struct bat_attribute **bat_attr;
587 *hardif_obj = kobject_create_and_add(SYSFS_IF_BAT_SUBDIR,
591 bat_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
592 SYSFS_IF_BAT_SUBDIR);
596 for (bat_attr = batman_attrs; *bat_attr; ++bat_attr) {
597 err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr));
599 bat_err(dev, "Can't add sysfs file: %s/%s/%s\n",
600 dev->name, SYSFS_IF_BAT_SUBDIR,
601 ((*bat_attr)->attr).name);
609 for (bat_attr = batman_attrs; *bat_attr; ++bat_attr)
610 sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr));
615 void sysfs_del_hardif(struct kobject **hardif_obj)
617 kobject_put(*hardif_obj);
621 int throw_uevent(struct bat_priv *bat_priv, enum uev_type type,
622 enum uev_action action, const char *data)
625 struct hard_iface *primary_if = NULL;
626 struct kobject *bat_kobj;
627 char *uevent_env[4] = { NULL, NULL, NULL, NULL };
629 primary_if = primary_if_get_selected(bat_priv);
633 bat_kobj = &primary_if->soft_iface->dev.kobj;
635 uevent_env[0] = kmalloc(strlen(UEV_TYPE_VAR) +
636 strlen(uev_type_str[type]) + 1,
641 sprintf(uevent_env[0], "%s%s", UEV_TYPE_VAR, uev_type_str[type]);
643 uevent_env[1] = kmalloc(strlen(UEV_ACTION_VAR) +
644 strlen(uev_action_str[action]) + 1,
649 sprintf(uevent_env[1], "%s%s", UEV_ACTION_VAR, uev_action_str[action]);
651 /* If the event is DEL, ignore the data field */
652 if (action != UEV_DEL) {
653 uevent_env[2] = kmalloc(strlen(UEV_DATA_VAR) +
654 strlen(data) + 1, GFP_ATOMIC);
658 sprintf(uevent_env[2], "%s%s", UEV_DATA_VAR, data);
661 ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env);
663 kfree(uevent_env[0]);
664 kfree(uevent_env[1]);
665 kfree(uevent_env[2]);
668 hardif_free_ref(primary_if);
671 bat_dbg(DBG_BATMAN, bat_priv, "Impossible to send "
672 "uevent for (%s,%s,%s) event (err: %d)\n",
673 uev_type_str[type], uev_action_str[action],
674 (action == UEV_DEL ? "NULL" : data), ret);