static int batadv_store_bool_attr(char *buff, size_t count,
struct net_device *net_dev,
const 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) {
batadv_info(net_dev, "%s: Invalid parameter received: %s\n",
attr_name, buff);
return -EINVAL;
}
if (atomic_read(attr) == enabled)
return count;
batadv_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 int)enabled);
return count;
}
static ssize_t batadv_store_gw_mode(struct kobject *kobj,
struct attribute *attr, char *buff,
size_t count)
{
struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
struct batadv_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, BATADV_GW_MODE_OFF_NAME,
strlen(BATADV_GW_MODE_OFF_NAME)) == 0)
gw_mode_tmp = BATADV_GW_MODE_OFF;
if (strncmp(buff, BATADV_GW_MODE_CLIENT_NAME,
strlen(BATADV_GW_MODE_CLIENT_NAME)) == 0)
gw_mode_tmp = BATADV_GW_MODE_CLIENT;
if (strncmp(buff, BATADV_GW_MODE_SERVER_NAME,
strlen(BATADV_GW_MODE_SERVER_NAME)) == 0)
gw_mode_tmp = BATADV_GW_MODE_SERVER;
if (gw_mode_tmp < 0) {
batadv_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 BATADV_GW_MODE_CLIENT:
curr_gw_mode_str = BATADV_GW_MODE_CLIENT_NAME;
break;
case BATADV_GW_MODE_SERVER:
curr_gw_mode_str = BATADV_GW_MODE_SERVER_NAME;
break;
default:
curr_gw_mode_str = BATADV_GW_MODE_OFF_NAME;
break;
}
batadv_info(net_dev, "Changing gw mode from: %s to: %s\n",
curr_gw_mode_str, buff);
batadv_gw_deselect(bat_priv);
atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp);
return count;
}
static ssize_t batadv_store_vis_mode(struct kobject *kobj,
struct attribute *attr, char *buff,
size_t count)
{
struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
struct batadv_priv *bat_priv = netdev_priv(net_dev);
unsigned long val;
int ret, vis_mode_tmp = -1;
const char *old_mode, *new_mode;
ret = kstrtoul(buff, 10, &val);
if (((count == 2) && (!ret) &&
(val == BATADV_VIS_TYPE_CLIENT_UPDATE)) ||
(strncmp(buff, "client", 6) == 0) ||
(strncmp(buff, "off", 3) == 0))
vis_mode_tmp = BATADV_VIS_TYPE_CLIENT_UPDATE;
if (((count == 2) && (!ret) &&
(val == BATADV_VIS_TYPE_SERVER_SYNC)) ||
(strncmp(buff, "server", 6) == 0))
vis_mode_tmp = BATADV_VIS_TYPE_SERVER_SYNC;
if (vis_mode_tmp < 0) {
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
batadv_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;
if (atomic_read(&bat_priv->vis_mode) == BATADV_VIS_TYPE_CLIENT_UPDATE)
old_mode = "client";
else
old_mode = "server";
if (vis_mode_tmp == BATADV_VIS_TYPE_CLIENT_UPDATE)
new_mode = "client";
else
new_mode = "server";
batadv_info(net_dev, "Changing vis mode from: %s to: %s\n", old_mode,
new_mode);
atomic_set(&bat_priv->vis_mode, (unsigned int)vis_mode_tmp);
return count;
}
static int batadv_store_uint_attr(const char *buff, size_t count,
struct net_device *net_dev,
const char *attr_name,
unsigned int min, unsigned int max,
atomic_t *attr)
{
unsigned long uint_val;
int ret;
ret = kstrtoul(buff, 10, &uint_val);
if (ret) {
batadv_info(net_dev, "%s: Invalid parameter received: %s\n",
attr_name, buff);
return -EINVAL;
}
if (uint_val < min) {
batadv_info(net_dev, "%s: Value is too small: %lu min: %u\n",
attr_name, uint_val, min);
return -EINVAL;
}
if (uint_val > max) {
batadv_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;
batadv_info(net_dev, "%s: Changing from: %i to: %lu\n",
attr_name, atomic_read(attr), uint_val);
atomic_set(attr, uint_val);
return count;
}
ssize_t batadv_gw_bandwidth_set(struct net_device *net_dev, char *buff,
size_t count)
{
struct batadv_priv *bat_priv = netdev_priv(net_dev);
long gw_bandwidth_tmp = 0;
int up = 0, down = 0;
bool ret;
ret = batadv_parse_gw_bandwidth(net_dev, buff, &up, &down);
if (!ret)
goto end;
if ((!down) || (down < 256))
down = 2000;
if (!up)
up = down / 5;
batadv_kbit_to_gw_bandwidth(down, up, &gw_bandwidth_tmp);
/* the gw bandwidth we guessed above might not match the given
* speeds, hence we need to calculate it back to show the number
* that is going to be propagated
*/
batadv_gw_bandwidth_to_kbit((uint8_t)gw_bandwidth_tmp, &down, &up);
if (atomic_read(&bat_priv->gw_bandwidth) == gw_bandwidth_tmp)
return count;
batadv_gw_deselect(bat_priv);
batadv_info(net_dev,
"Changing gateway bandwidth from: '%i' to: '%ld' (propagating: %d%s/%d%s)\n",
atomic_read(&bat_priv->gw_bandwidth), gw_bandwidth_tmp,
(down > 2048 ? down / 1024 : down),
(down > 2048 ? "MBit" : "KBit"),
(up > 2048 ? up / 1024 : up),
(up > 2048 ? "MBit" : "KBit"));
atomic_set(&bat_priv->gw_bandwidth, gw_bandwidth_tmp);
end:
return count;
}
/**
* batadv_gw_bandwidth_set() - Parse and set download/upload gateway bandwidth
* from supplied string buffer
* @net_dev: netdev struct of the soft interface
* @buff: the buffer containing the user data
* @count: number of bytes in the buffer
*
* Return: 'count' on success or a negative error code in case of failure
*/
ssize_t batadv_gw_bandwidth_set(struct net_device *net_dev, char *buff,
size_t count)
{
struct batadv_priv *bat_priv = netdev_priv(net_dev);
u32 down_curr;
u32 up_curr;
u32 down_new = 0;
u32 up_new = 0;
bool ret;
down_curr = (unsigned int)atomic_read(&bat_priv->gw.bandwidth_down);
up_curr = (unsigned int)atomic_read(&bat_priv->gw.bandwidth_up);
ret = batadv_parse_gw_bandwidth(net_dev, buff, &down_new, &up_new);
if (!ret)
return -EINVAL;
if (!down_new)
down_new = 1;
if (!up_new)
up_new = down_new / 5;
if (!up_new)
up_new = 1;
if (down_curr == down_new && up_curr == up_new)
return count;
batadv_gw_reselect(bat_priv);
batadv_info(net_dev,
"Changing gateway bandwidth from: '%u.%u/%u.%u MBit' to: '%u.%u/%u.%u MBit'\n",
down_curr / 10, down_curr % 10, up_curr / 10, up_curr % 10,
down_new / 10, down_new % 10, up_new / 10, up_new % 10);
atomic_set(&bat_priv->gw.bandwidth_down, down_new);
atomic_set(&bat_priv->gw.bandwidth_up, up_new);
batadv_gw_tvlv_container_update(bat_priv);
return count;
}