/*
* Copyright (C) 2010-2011 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA
*
*/
#include "main.h"
#include "bat_sysfs.h"
#include "translation-table.h"
#include "originator.h"
#include "hard-interface.h"
#include "gateway_common.h"
#include "gateway_client.h"
#include "vis.h"
#define to_dev(obj) container_of(obj, struct device, kobj)
#define kobj_to_netdev(obj) to_net_dev(to_dev(obj->parent))
#define kobj_to_batpriv(obj) netdev_priv(kobj_to_netdev(obj))
/* Use this, if you have customized show and store functions */
#define BAT_ATTR(_name, _mode, _show, _store) \
struct bat_attribute bat_attr_##_name = { \
.attr = {.name = __stringify(_name), \
.mode = _mode }, \
.show = _show, \
.store = _store, \
};
#define BAT_ATTR_STORE_BOOL(_name, _post_func) \
ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \
char *buff, size_t count) \
{ \
struct net_device *net_dev = kobj_to_netdev(kobj); \
struct bat_priv *bat_priv = netdev_priv(net_dev); \
return __store_bool_attr(buff, count, _post_func, attr, \
&bat_priv->_name, net_dev); \
}
#define BAT_ATTR_SHOW_BOOL(_name) \
ssize_t show_##_name(struct kobject *kobj, struct attribute *attr, \
char *buff) \
{ \
struct bat_priv *bat_priv = kobj_to_batpriv(kobj); \
return sprintf(buff, "%s\n", \
atomic_read(&bat_priv->_name) == 0 ? \
"disabled" : "enabled"); \
} \
/* Use this, if you are going to turn a [name] in bat_priv on or off */
#define BAT_ATTR_BOOL(_name, _mode, _post_func) \
static BAT_ATTR_STORE_BOOL(_name, _post_func) \
static BAT_ATTR_SHOW_BOOL(_name) \
static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
#define BAT_ATTR_STORE_UINT(_name, _min, _max, _post_func) \
ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \
char *buff, size_t count) \
{ \
struct net_device *net_dev = kobj_to_netdev(kobj); \
struct bat_priv *bat_priv = netdev_priv(net_dev); \
return __store_uint_attr(buff, count, _min, _max, _post_func, \
attr, &bat_priv->_name, net_dev); \
}
#define BAT_ATTR_SHOW_UINT(_name) \
ssize_t show_##_name(struct kobject *kobj, struct attribute *attr, \
char *buff) \
{ \
struct bat_priv *bat_priv = kobj_to_batpriv(kobj); \
return sprintf(buff, "%i\n", atomic_read(&bat_priv->_name)); \
} \
/* Use this, if you are going to set [name] in bat_priv to unsigned integer
* values only */
#define BAT_ATTR_UINT(_name, _mode, _min, _max, _post_func) \
static BAT_ATTR_STORE_UINT(_name, _min, _max, _post_func) \
static BAT_ATTR_SHOW_UINT(_name) \
static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
static int store_bool_attr(char *buff, size_t count,
struct net_device *net_dev,
char *attr_name, atomic_t *attr)
{
int enabled = -1;
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
if ((strncmp(buff, "1", 2) == 0) ||
(strncmp(buff, "enable", 7) == 0) ||
(strncmp(buff, "enabled", 8) == 0))
enabled = 1;
if ((strncmp(buff, "0", 2) == 0) ||
(strncmp(buff, "disable", 8) == 0) ||
(strncmp(buff, "disabled", 9) == 0))
enabled = 0;
if (enabled < 0) {
bat_info(net_dev,
"%s: Invalid parameter received: %s\n",
attr_name, buff);
return -EINVAL;
}
if (atomic_read(attr) == enabled)
return count;
bat_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name,
atomic_read(attr) == 1 ? "enabled" : "disabled",
enabled == 1 ? "enabled" : "disabled");
atomic_set(attr, (unsigned)enabled);
return count;
}
static inline ssize_t __store_bool_attr(char *buff, size_t count,
void (*post_func)(struct net_device *),
struct attribute *attr,
atomic_t *attr_store, struct net_device *net_dev)
{
int ret;
ret = store_bool_attr(buff, count, net_dev, (char *)attr->name,
attr_store);
if (post_func && ret)
post_func(net_dev);
return ret;
}
static int store_uint_attr(char *buff, size_t count,
struct net_device *net_dev, char *attr_name,
unsigned int min, unsigned int max, atomic_t *attr)
{
unsigned long uint_val;
int ret;
ret = strict_strtoul(buff, 10, &uint_val);
if (ret) {
bat_info(net_dev,
"%s: Invalid parameter received: %s\n",
attr_name, buff);
return -EINVAL;
}
if (uint_val < min) {
bat_info(net_dev, "%s: Value is too small: %lu min: %u\n",
attr_name, uint_val, min);
return -EINVAL;
}
if (uint_val > max) {
bat_info(net_dev, "%s: Value is too big: %lu max: %u\n",
attr_name, uint_val, max);
return -EINVAL;
}
if (atomic_read(attr) == uint_val)
return count;
bat_info(net_dev, "%s: Changing from: %i to: %lu\n",
attr_name, atomic_read(attr), uint_val);
atomic_set(attr, uint_val);
return count;
}
static inline ssize_t __store_uint_attr(char *buff, size_t count,
int min, int max,
void (*post_func)(struct net_device *),
struct attribute *attr,
atomic_t *attr_store, struct net_device *net_dev)
{
int ret;
ret = store_uint_attr(buff, count, net_dev, (char *)attr->name,
min, max, attr_store);
if (post_func && ret)
post_func(net_dev);
return ret;
}
static ssize_t show_vis_mode(struct kobject *kobj, struct attribute *attr,
char *buff)
{
struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
int vis_mode = atomic_read(&bat_priv->vis_mode);
return sprintf(buff, "%s\n",
vis_mode == VIS_TYPE_CLIENT_UPDATE ?
"client" : "server");
}
static ssize_t store_vis_mode(struct kobject *kobj, struct attribute *attr,
char *buff, size_t count)
{
struct net_device *net_dev = kobj_to_netdev(kobj);
struct bat_priv *bat_priv = netdev_priv(net_dev);
unsigned long val;
int ret, vis_mode_tmp = -1;
ret = strict_strtoul(buff, 10, &val);
if (((count == 2) && (!ret) && (val == VIS_TYPE_CLIENT_UPDATE)) ||
(strncmp(buff, "client", 6) == 0) ||
(strncmp(buff, "off", 3) == 0))
vis_mode_tmp = VIS_TYPE_CLIENT_UPDATE;
if (((count == 2) && (!ret) && (val == VIS_TYPE_SERVER_SYNC)) ||
(strncmp(buff, "server", 6) == 0))
vis_mode_tmp = VIS_TYPE_SERVER_SYNC;
if (vis_mode_tmp < 0) {
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
bat_info(net_dev,
"Invalid parameter for 'vis mode' setting received: "
"%s\n", buff);
return -EINVAL;
}
if (atomic_read(&bat_priv->vis_mode) == vis_mode_tmp)
return count;
bat_info(net_dev, "Changing vis mode from: %s to: %s\n",
atomic_read(&bat_priv->vis_mode) == VIS_TYPE_CLIENT_UPDATE ?
"client" : "server", vis_mode_tmp == VIS_TYPE_CLIENT_UPDATE ?
"client" : "server");
atomic_set(&bat_priv->vis_mode, (unsigned)vis_mode_tmp);
return count;
}
static void post_gw_deselect(struct net_device *net_dev)
{
struct bat_priv *bat_priv = netdev_priv(net_dev);
gw_deselect(bat_priv);
}
static ssize_t show_gw_mode(struct kobject *kobj, struct attribute *attr,
char *buff)
{
struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
int bytes_written;
switch (atomic_read(&bat_priv->gw_mode)) {
case GW_MODE_CLIENT:
bytes_written = sprintf(buff, "%s\n", GW_MODE_CLIENT_NAME);
break;
case GW_MODE_SERVER:
bytes_written = sprintf(buff, "%s\n", GW_MODE_SERVER_NAME);
break;
default:
bytes_written = sprintf(buff, "%s\n", GW_MODE_OFF_NAME);
break;
}
return bytes_written;
}
static ssize_t store_gw_mode(struct kobject *kobj, struct attribute *attr,
char *buff, size_t count)
{
struct net_device *net_dev = kobj_to_netdev(kobj);
struct bat_priv *bat_priv = netdev_priv(net_dev);
char *curr_gw_mode_str;
int gw_mode_tmp = -1;
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
if (strncmp(buff, GW_MODE_OFF_NAME, strlen(GW_MODE_OFF_NAME)) == 0)
gw_mode_tmp = GW_MODE_OFF;
if (strncmp(buff, GW_MODE_CLIENT_NAME,
strlen(GW_MODE_CLIENT_NAME)) == 0)
gw_mode_tmp = GW_MODE_CLIENT;
if (strncmp(buff, GW_MODE_SERVER_NAME,
strlen(GW_MODE_SERVER_NAME)) == 0)
gw_mode_tmp = GW_MODE_SERVER;
if (gw_mode_tmp < 0) {
bat_info(net_dev,
"Invalid parameter for 'gw mode' setting received: "
"%s\n", buff);
return -EINVAL;
}
if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp)
return count;
switch (atomic_read(&bat_priv->gw_mode)) {
case GW_MODE_CLIENT:
curr_gw_mode_str = GW_MODE_CLIENT_NAME;
break;
case GW_MODE_SERVER:
curr_gw_mode_str = GW_MODE_SERVER_NAME;
break;
default:
curr_gw_mode_str = GW_MODE_OFF_NAME;
break;
}
bat_info(net_dev, "Changing gw mode from: %s to: %s\n",
curr_gw_mode_str, buff);
gw_deselect(bat_priv);
atomic_set(&bat_priv->gw_mode, (unsigned)gw_mode_tmp);
return count;
}
static ssize_t show_gw_bwidth(struct kobject *kobj, struct attribute *attr,
char *buff)
{
struct bat_priv *bat_priv = kobj_to_batpriv(kobj);
int down, up;
int gw_bandwidth = atomic_read(&bat_priv->gw_bandwidth);
gw_bandwidth_to_kbit(gw_bandwidth, &down, &up);
return sprintf(buff, "%i%s/%i%s\n",
(down > 2048 ? down / 1024 : down),
(down > 2048 ? "MBit" : "KBit"),
(up > 2048 ? up / 1024 : up),
(up > 2048 ? "MBit" : "KBit"));
}
static ssize_t store_gw_bwidth(struct kobject *kobj, struct attribute *attr,
char *buff, size_t count)
{
struct net_device *net_dev = kobj_to_netdev(kobj);
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
return gw_bandwidth_set(net_dev, buff, count);
}
BAT_ATTR_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL);
BAT_ATTR_BOOL(bonding, S_IRUGO | S_IWUSR, NULL);
BAT_ATTR_BOOL(fragmentation, S_IRUGO | S_IWUSR, update_min_mtu);
static BAT_ATTR(vis_mode, S_IRUGO | S_IWUSR, show_vis_mode, store_vis_mode);
static BAT_ATTR(gw_mode, S_IRUGO | S_IWUSR, show_gw_mode, store_gw_mode);
BAT_ATTR_UINT(orig_interval, S_IRUGO | S_IWUSR, 2 * JITTER, INT_MAX, NULL);
BAT_ATTR_UINT(hop_penalty, S_IRUGO | S_IWUSR, 0, TQ_MAX_VALUE, NULL);
BAT_ATTR_UINT(gw_sel_class, S_IRUGO | S_IWUSR, 1, TQ_MAX_VALUE,
post_gw_deselect);
static BAT_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, show_gw_bwidth,
store_gw_bwidth);
#ifdef CONFIG_BATMAN_ADV_DEBUG
BAT_ATTR_UINT(log_level, S_IRUGO | S_IWUSR, 0, 3, NULL);
#endif
static struct bat_attribute *mesh_attrs[] = {
&bat_attr_aggregated_ogms,
&bat_attr_bonding,
&bat_attr_fragmentation,
&bat_attr_vis_mode,
&bat_attr_gw_mode,
&bat_attr_orig_interval,
&bat_attr_hop_penalty,
&bat_attr_gw_sel_class,
&bat_attr_gw_bandwidth,
#ifdef CONFIG_BATMAN_ADV_DEBUG
&bat_attr_log_level,
#endif
NULL,
};
int sysfs_add_meshif(struct net_device *dev)
{
struct kobject *batif_kobject = &dev->dev.kobj;
struct bat_priv *bat_priv = netdev_priv(dev);
struct bat_attribute **bat_attr;
int err;
bat_priv->mesh_obj = kobject_create_and_add(SYSFS_IF_MESH_SUBDIR,
batif_kobject);
if (!bat_priv->mesh_obj) {
bat_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
SYSFS_IF_MESH_SUBDIR);
goto out;
}
for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr) {
err = sysfs_create_file(bat_priv->mesh_obj,
&((*bat_attr)->attr));
if (err) {
bat_err(dev, "Can't add sysfs file: %s/%s/%s\n",
dev->name, SYSFS_IF_MESH_SUBDIR,
((*bat_attr)->attr).name);
goto rem_attr;
}
}
return 0;
rem_attr:
for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
kobject_put(bat_priv->mesh_obj);
bat_priv->mesh_obj = NULL;
out:
return -ENOMEM;
}
void sysfs_del_meshif(struct net_device *dev)
{
struct bat_priv *bat_priv = netdev_priv(dev);
struct bat_attribute **bat_attr;
for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
kobject_put(bat_priv->mesh_obj);
bat_priv->mesh_obj = NULL;
}
static ssize_t show_mesh_iface(struct kobject *kobj, struct attribute *attr,
char *buff)
{
struct net_device *net_dev = kobj_to_netdev(kobj);
struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
ssize_t length;
if (!hard_iface)
return 0;
length = sprintf(buff, "%s\n", hard_iface->if_status == IF_NOT_IN_USE ?
"none" : hard_iface->soft_iface->name);
hardif_free_ref(hard_iface);
return length;
}
static ssize_t store_mesh_iface(struct kobject *kobj, struct attribute *attr,
char *buff, size_t count)
{
struct net_device *net_dev = kobj_to_netdev(kobj);
struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
int status_tmp = -1;
int ret = count;
if (!hard_iface)
return count;
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
if (strlen(buff) >= IFNAMSIZ) {
pr_err("Invalid parameter for 'mesh_iface' setting received: "
"interface name too long '%s'\n", buff);
hardif_free_ref(hard_iface);
return -EINVAL;
}
if (strncmp(buff, "none", 4) == 0)
status_tmp = IF_NOT_IN_USE;
else
status_tmp = IF_I_WANT_YOU;
if (hard_iface->if_status == status_tmp)
goto out;
if ((hard_iface->soft_iface) &&
(strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0))
goto out;
if (!rtnl_trylock()) {
ret = -ERESTARTSYS;
goto out;
}
if (status_tmp == IF_NOT_IN_USE) {
hardif_disable_interface(hard_iface);
goto unlock;
}
/* if the interface already is in use */
if (hard_iface->if_status != IF_NOT_IN_USE)
hardif_disable_interface(hard_iface);
ret = hardif_enable_interface(hard_iface, buff);
unlock:
rtnl_unlock();
out:
hardif_free_ref(hard_iface);
return ret;
}
static ssize_t show_iface_status(struct kobject *kobj, struct attribute *attr,
char *buff)
{
struct net_device *net_dev = kobj_to_netdev(kobj);
struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev);
ssize_t length;
if (!hard_iface)
return 0;
switch (hard_iface->if_status) {
case IF_TO_BE_REMOVED:
length = sprintf(buff, "disabling\n");
break;
case IF_INACTIVE:
length = sprintf(buff, "inactive\n");
break;
case IF_ACTIVE:
length = sprintf(buff, "active\n");
break;
case IF_TO_BE_ACTIVATED:
length = sprintf(buff, "enabling\n");
break;
case IF_NOT_IN_USE:
default:
length = sprintf(buff, "not in use\n");
break;
}
hardif_free_ref(hard_iface);
return length;
}
static BAT_ATTR(mesh_iface, S_IRUGO | S_IWUSR,
show_mesh_iface, store_mesh_iface);
static BAT_ATTR(iface_status, S_IRUGO, show_iface_status, NULL);
static struct bat_attribute *batman_attrs[] = {
&bat_attr_mesh_iface,
&bat_attr_iface_status,
NULL,
};
int sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev)
{
struct kobject *hardif_kobject = &dev->dev.kobj;
struct bat_attribute **bat_attr;
int err;
*hardif_obj = kobject_create_and_add(SYSFS_IF_BAT_SUBDIR,
hardif_kobject);
if (!*hardif_obj) {
bat_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
SYSFS_IF_BAT_SUBDIR);
goto out;
}
for (bat_attr = batman_attrs; *bat_attr; ++bat_attr) {
err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr));
if (err) {
bat_err(dev, "Can't add sysfs file: %s/%s/%s\n",
dev->name, SYSFS_IF_BAT_SUBDIR,
((*bat_attr)->attr).name);
goto rem_attr;
}
}
return 0;
rem_attr:
for (bat_attr = batman_attrs; *bat_attr; ++bat_attr)
sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr));
out:
return -ENOMEM;
}
void sysfs_del_hardif(struct kobject **hardif_obj)
{
kobject_put(*hardif_obj);
*hardif_obj = NULL;
}
