2 * Copyright (C) 2010-2012 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_SIF_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_SIF_SHOW_BOOL(_name) \
77 ssize_t show_##_name(struct kobject *kobj, \
78 struct attribute *attr, char *buff) \
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 the soft-interface
87 * (bat_priv) on or off */
88 #define BAT_ATTR_SIF_BOOL(_name, _mode, _post_func) \
89 static BAT_ATTR_SIF_STORE_BOOL(_name, _post_func) \
90 static BAT_ATTR_SIF_SHOW_BOOL(_name) \
91 static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
94 #define BAT_ATTR_SIF_STORE_UINT(_name, _min, _max, _post_func) \
95 ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \
96 char *buff, size_t count) \
98 struct net_device *net_dev = kobj_to_netdev(kobj); \
99 struct bat_priv *bat_priv = netdev_priv(net_dev); \
100 return __store_uint_attr(buff, count, _min, _max, _post_func, \
101 attr, &bat_priv->_name, net_dev); \
104 #define BAT_ATTR_SIF_SHOW_UINT(_name) \
105 ssize_t show_##_name(struct kobject *kobj, \
106 struct attribute *attr, char *buff) \
108 struct bat_priv *bat_priv = kobj_to_batpriv(kobj); \
109 return sprintf(buff, "%i\n", atomic_read(&bat_priv->_name)); \
112 /* Use this, if you are going to set [name] in the soft-interface
113 * (bat_priv) to an unsigned integer value */
114 #define BAT_ATTR_SIF_UINT(_name, _mode, _min, _max, _post_func) \
115 static BAT_ATTR_SIF_STORE_UINT(_name, _min, _max, _post_func) \
116 static BAT_ATTR_SIF_SHOW_UINT(_name) \
117 static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
120 #define BAT_ATTR_HIF_STORE_UINT(_name, _min, _max, _post_func) \
121 ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \
122 char *buff, size_t count) \
124 struct net_device *net_dev = kobj_to_netdev(kobj); \
125 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev); \
131 length = __store_uint_attr(buff, count, _min, _max, _post_func, \
132 attr, &hard_iface->_name, net_dev); \
134 hardif_free_ref(hard_iface); \
138 #define BAT_ATTR_HIF_SHOW_UINT(_name) \
139 ssize_t show_##_name(struct kobject *kobj, \
140 struct attribute *attr, char *buff) \
142 struct net_device *net_dev = kobj_to_netdev(kobj); \
143 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev); \
149 length = sprintf(buff, "%i\n", atomic_read(&hard_iface->_name));\
151 hardif_free_ref(hard_iface); \
155 /* Use this, if you are going to set [name] in hard_iface to an
156 * unsigned integer value*/
157 #define BAT_ATTR_HIF_UINT(_name, _mode, _min, _max, _post_func) \
158 static BAT_ATTR_HIF_STORE_UINT(_name, _min, _max, _post_func) \
159 static BAT_ATTR_HIF_SHOW_UINT(_name) \
160 static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
163 static int store_bool_attr(char *buff, size_t count,
164 struct net_device *net_dev,
165 const char *attr_name, atomic_t *attr)
169 if (buff[count - 1] == '\n')
170 buff[count - 1] = '\0';
172 if ((strncmp(buff, "1", 2) == 0) ||
173 (strncmp(buff, "enable", 7) == 0) ||
174 (strncmp(buff, "enabled", 8) == 0))
177 if ((strncmp(buff, "0", 2) == 0) ||
178 (strncmp(buff, "disable", 8) == 0) ||
179 (strncmp(buff, "disabled", 9) == 0))
184 "%s: Invalid parameter received: %s\n",
189 if (atomic_read(attr) == enabled)
192 bat_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name,
193 atomic_read(attr) == 1 ? "enabled" : "disabled",
194 enabled == 1 ? "enabled" : "disabled");
196 atomic_set(attr, (unsigned int)enabled);
200 static inline ssize_t __store_bool_attr(char *buff, size_t count,
201 void (*post_func)(struct net_device *),
202 struct attribute *attr,
203 atomic_t *attr_store, struct net_device *net_dev)
207 ret = store_bool_attr(buff, count, net_dev, attr->name, attr_store);
208 if (post_func && ret)
214 static int store_uint_attr(const char *buff, size_t count,
215 struct net_device *net_dev, const char *attr_name,
216 unsigned int min, unsigned int max, atomic_t *attr)
218 unsigned long uint_val;
221 ret = kstrtoul(buff, 10, &uint_val);
224 "%s: Invalid parameter received: %s\n",
229 if (uint_val < min) {
230 bat_info(net_dev, "%s: Value is too small: %lu min: %u\n",
231 attr_name, uint_val, min);
235 if (uint_val > max) {
236 bat_info(net_dev, "%s: Value is too big: %lu max: %u\n",
237 attr_name, uint_val, max);
241 if (atomic_read(attr) == uint_val)
244 bat_info(net_dev, "%s: Changing from: %i to: %lu\n",
245 attr_name, atomic_read(attr), uint_val);
247 atomic_set(attr, uint_val);
251 static inline ssize_t __store_uint_attr(const char *buff, size_t count,
253 void (*post_func)(struct net_device *),
254 const struct attribute *attr,
255 atomic_t *attr_store, struct net_device *net_dev)
259 ret = store_uint_attr(buff, count, net_dev, attr->name,
260 min, max, attr_store);
261 if (post_func && ret)
267 static ssize_t show_vis_mode(struct kobject *kobj, struct attribute *attr,
270 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
271 int vis_mode = atomic_read(&bat_priv->vis_mode);
273 return sprintf(buff, "%s\n",
274 vis_mode == VIS_TYPE_CLIENT_UPDATE ?
275 "client" : "server");
278 static ssize_t store_vis_mode(struct kobject *kobj, struct attribute *attr,
279 char *buff, size_t count)
281 struct net_device *net_dev = kobj_to_netdev(kobj);
282 struct bat_priv *bat_priv = netdev_priv(net_dev);
284 int ret, vis_mode_tmp = -1;
286 ret = kstrtoul(buff, 10, &val);
288 if (((count == 2) && (!ret) && (val == VIS_TYPE_CLIENT_UPDATE)) ||
289 (strncmp(buff, "client", 6) == 0) ||
290 (strncmp(buff, "off", 3) == 0))
291 vis_mode_tmp = VIS_TYPE_CLIENT_UPDATE;
293 if (((count == 2) && (!ret) && (val == VIS_TYPE_SERVER_SYNC)) ||
294 (strncmp(buff, "server", 6) == 0))
295 vis_mode_tmp = VIS_TYPE_SERVER_SYNC;
297 if (vis_mode_tmp < 0) {
298 if (buff[count - 1] == '\n')
299 buff[count - 1] = '\0';
302 "Invalid parameter for 'vis mode' setting received: %s\n",
307 if (atomic_read(&bat_priv->vis_mode) == vis_mode_tmp)
310 bat_info(net_dev, "Changing vis mode from: %s to: %s\n",
311 atomic_read(&bat_priv->vis_mode) == VIS_TYPE_CLIENT_UPDATE ?
312 "client" : "server", vis_mode_tmp == VIS_TYPE_CLIENT_UPDATE ?
313 "client" : "server");
315 atomic_set(&bat_priv->vis_mode, (unsigned int)vis_mode_tmp);
319 static ssize_t show_bat_algo(struct kobject *kobj, struct attribute *attr,
322 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
323 return sprintf(buff, "%s\n", bat_priv->bat_algo_ops->name);
326 static void post_gw_deselect(struct net_device *net_dev)
328 struct bat_priv *bat_priv = netdev_priv(net_dev);
329 gw_deselect(bat_priv);
332 static ssize_t show_gw_mode(struct kobject *kobj, struct attribute *attr,
335 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
338 switch (atomic_read(&bat_priv->gw_mode)) {
340 bytes_written = sprintf(buff, "%s\n", GW_MODE_CLIENT_NAME);
343 bytes_written = sprintf(buff, "%s\n", GW_MODE_SERVER_NAME);
346 bytes_written = sprintf(buff, "%s\n", GW_MODE_OFF_NAME);
350 return bytes_written;
353 static ssize_t store_gw_mode(struct kobject *kobj, struct attribute *attr,
354 char *buff, size_t count)
356 struct net_device *net_dev = kobj_to_netdev(kobj);
357 struct bat_priv *bat_priv = netdev_priv(net_dev);
358 char *curr_gw_mode_str;
359 int gw_mode_tmp = -1;
361 if (buff[count - 1] == '\n')
362 buff[count - 1] = '\0';
364 if (strncmp(buff, GW_MODE_OFF_NAME, strlen(GW_MODE_OFF_NAME)) == 0)
365 gw_mode_tmp = GW_MODE_OFF;
367 if (strncmp(buff, GW_MODE_CLIENT_NAME,
368 strlen(GW_MODE_CLIENT_NAME)) == 0)
369 gw_mode_tmp = GW_MODE_CLIENT;
371 if (strncmp(buff, GW_MODE_SERVER_NAME,
372 strlen(GW_MODE_SERVER_NAME)) == 0)
373 gw_mode_tmp = GW_MODE_SERVER;
375 if (gw_mode_tmp < 0) {
377 "Invalid parameter for 'gw mode' setting received: %s\n",
382 if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp)
385 switch (atomic_read(&bat_priv->gw_mode)) {
387 curr_gw_mode_str = GW_MODE_CLIENT_NAME;
390 curr_gw_mode_str = GW_MODE_SERVER_NAME;
393 curr_gw_mode_str = GW_MODE_OFF_NAME;
397 bat_info(net_dev, "Changing gw mode from: %s to: %s\n",
398 curr_gw_mode_str, buff);
400 gw_deselect(bat_priv);
401 atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp);
405 static ssize_t show_gw_bwidth(struct kobject *kobj, struct attribute *attr,
408 struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
410 int gw_bandwidth = atomic_read(&bat_priv->gw_bandwidth);
412 gw_bandwidth_to_kbit(gw_bandwidth, &down, &up);
413 return sprintf(buff, "%i%s/%i%s\n",
414 (down > 2048 ? down / 1024 : down),
415 (down > 2048 ? "MBit" : "KBit"),
416 (up > 2048 ? up / 1024 : up),
417 (up > 2048 ? "MBit" : "KBit"));
420 static ssize_t store_gw_bwidth(struct kobject *kobj, struct attribute *attr,
421 char *buff, size_t count)
423 struct net_device *net_dev = kobj_to_netdev(kobj);
425 if (buff[count - 1] == '\n')
426 buff[count - 1] = '\0';
428 return gw_bandwidth_set(net_dev, buff, count);
431 BAT_ATTR_SIF_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL);
432 BAT_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL);
433 #ifdef CONFIG_BATMAN_ADV_BLA
434 BAT_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, NULL);
436 BAT_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, update_min_mtu);
437 BAT_ATTR_SIF_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL);
438 static BAT_ATTR(vis_mode, S_IRUGO | S_IWUSR, show_vis_mode, store_vis_mode);
439 static BAT_ATTR(routing_algo, S_IRUGO, show_bat_algo, NULL);
440 static BAT_ATTR(gw_mode, S_IRUGO | S_IWUSR, show_gw_mode, store_gw_mode);
441 BAT_ATTR_SIF_UINT(orig_interval, S_IRUGO | S_IWUSR, 2 * JITTER, INT_MAX, NULL);
442 BAT_ATTR_SIF_UINT(hop_penalty, S_IRUGO | S_IWUSR, 0, TQ_MAX_VALUE, NULL);
443 BAT_ATTR_SIF_UINT(gw_sel_class, S_IRUGO | S_IWUSR, 1, TQ_MAX_VALUE,
445 static BAT_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, show_gw_bwidth,
447 #ifdef CONFIG_BATMAN_ADV_DEBUG
448 BAT_ATTR_SIF_UINT(log_level, S_IRUGO | S_IWUSR, 0, DBG_ALL, NULL);
451 static struct bat_attribute *mesh_attrs[] = {
452 &bat_attr_aggregated_ogms,
454 #ifdef CONFIG_BATMAN_ADV_BLA
455 &bat_attr_bridge_loop_avoidance,
457 &bat_attr_fragmentation,
458 &bat_attr_ap_isolation,
460 &bat_attr_routing_algo,
462 &bat_attr_orig_interval,
463 &bat_attr_hop_penalty,
464 &bat_attr_gw_sel_class,
465 &bat_attr_gw_bandwidth,
466 #ifdef CONFIG_BATMAN_ADV_DEBUG
472 int batadv_sysfs_add_meshif(struct net_device *dev)
474 struct kobject *batif_kobject = &dev->dev.kobj;
475 struct bat_priv *bat_priv = netdev_priv(dev);
476 struct bat_attribute **bat_attr;
479 bat_priv->mesh_obj = kobject_create_and_add(SYSFS_IF_MESH_SUBDIR,
481 if (!bat_priv->mesh_obj) {
482 bat_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
483 SYSFS_IF_MESH_SUBDIR);
487 for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr) {
488 err = sysfs_create_file(bat_priv->mesh_obj,
489 &((*bat_attr)->attr));
491 bat_err(dev, "Can't add sysfs file: %s/%s/%s\n",
492 dev->name, SYSFS_IF_MESH_SUBDIR,
493 ((*bat_attr)->attr).name);
501 for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
502 sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
504 kobject_put(bat_priv->mesh_obj);
505 bat_priv->mesh_obj = NULL;
510 void batadv_sysfs_del_meshif(struct net_device *dev)
512 struct bat_priv *bat_priv = netdev_priv(dev);
513 struct bat_attribute **bat_attr;
515 for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
516 sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
518 kobject_put(bat_priv->mesh_obj);
519 bat_priv->mesh_obj = NULL;
522 static ssize_t show_mesh_iface(struct kobject *kobj, struct attribute *attr,
525 struct net_device *net_dev = kobj_to_netdev(kobj);
526 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
532 length = sprintf(buff, "%s\n", hard_iface->if_status == IF_NOT_IN_USE ?
533 "none" : hard_iface->soft_iface->name);
535 hardif_free_ref(hard_iface);
540 static ssize_t store_mesh_iface(struct kobject *kobj, struct attribute *attr,
541 char *buff, size_t count)
543 struct net_device *net_dev = kobj_to_netdev(kobj);
544 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
551 if (buff[count - 1] == '\n')
552 buff[count - 1] = '\0';
554 if (strlen(buff) >= IFNAMSIZ) {
555 pr_err("Invalid parameter for 'mesh_iface' setting received: interface name too long '%s'\n",
557 hardif_free_ref(hard_iface);
561 if (strncmp(buff, "none", 4) == 0)
562 status_tmp = IF_NOT_IN_USE;
564 status_tmp = IF_I_WANT_YOU;
566 if (hard_iface->if_status == status_tmp)
569 if ((hard_iface->soft_iface) &&
570 (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0))
573 if (!rtnl_trylock()) {
578 if (status_tmp == IF_NOT_IN_USE) {
579 hardif_disable_interface(hard_iface);
583 /* if the interface already is in use */
584 if (hard_iface->if_status != IF_NOT_IN_USE)
585 hardif_disable_interface(hard_iface);
587 ret = hardif_enable_interface(hard_iface, buff);
592 hardif_free_ref(hard_iface);
596 static ssize_t show_iface_status(struct kobject *kobj, struct attribute *attr,
599 struct net_device *net_dev = kobj_to_netdev(kobj);
600 struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
606 switch (hard_iface->if_status) {
607 case IF_TO_BE_REMOVED:
608 length = sprintf(buff, "disabling\n");
611 length = sprintf(buff, "inactive\n");
614 length = sprintf(buff, "active\n");
616 case IF_TO_BE_ACTIVATED:
617 length = sprintf(buff, "enabling\n");
621 length = sprintf(buff, "not in use\n");
625 hardif_free_ref(hard_iface);
630 static BAT_ATTR(mesh_iface, S_IRUGO | S_IWUSR,
631 show_mesh_iface, store_mesh_iface);
632 static BAT_ATTR(iface_status, S_IRUGO, show_iface_status, NULL);
634 static struct bat_attribute *batman_attrs[] = {
635 &bat_attr_mesh_iface,
636 &bat_attr_iface_status,
640 int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev)
642 struct kobject *hardif_kobject = &dev->dev.kobj;
643 struct bat_attribute **bat_attr;
646 *hardif_obj = kobject_create_and_add(SYSFS_IF_BAT_SUBDIR,
650 bat_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
651 SYSFS_IF_BAT_SUBDIR);
655 for (bat_attr = batman_attrs; *bat_attr; ++bat_attr) {
656 err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr));
658 bat_err(dev, "Can't add sysfs file: %s/%s/%s\n",
659 dev->name, SYSFS_IF_BAT_SUBDIR,
660 ((*bat_attr)->attr).name);
668 for (bat_attr = batman_attrs; *bat_attr; ++bat_attr)
669 sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr));
674 void batadv_sysfs_del_hardif(struct kobject **hardif_obj)
676 kobject_put(*hardif_obj);
680 int batadv_throw_uevent(struct bat_priv *bat_priv, enum uev_type type,
681 enum uev_action action, const char *data)
684 struct hard_iface *primary_if = NULL;
685 struct kobject *bat_kobj;
686 char *uevent_env[4] = { NULL, NULL, NULL, NULL };
688 primary_if = primary_if_get_selected(bat_priv);
692 bat_kobj = &primary_if->soft_iface->dev.kobj;
694 uevent_env[0] = kmalloc(strlen(UEV_TYPE_VAR) +
695 strlen(uev_type_str[type]) + 1,
700 sprintf(uevent_env[0], "%s%s", UEV_TYPE_VAR, uev_type_str[type]);
702 uevent_env[1] = kmalloc(strlen(UEV_ACTION_VAR) +
703 strlen(uev_action_str[action]) + 1,
708 sprintf(uevent_env[1], "%s%s", UEV_ACTION_VAR, uev_action_str[action]);
710 /* If the event is DEL, ignore the data field */
711 if (action != UEV_DEL) {
712 uevent_env[2] = kmalloc(strlen(UEV_DATA_VAR) +
713 strlen(data) + 1, GFP_ATOMIC);
717 sprintf(uevent_env[2], "%s%s", UEV_DATA_VAR, data);
720 ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env);
722 kfree(uevent_env[0]);
723 kfree(uevent_env[1]);
724 kfree(uevent_env[2]);
727 hardif_free_ref(primary_if);
730 bat_dbg(DBG_BATMAN, bat_priv,
731 "Impossible to send uevent for (%s,%s,%s) event (err: %d)\n",
732 uev_type_str[type], uev_action_str[action],
733 (action == UEV_DEL ? "NULL" : data), ret);