/**
* batadv_gw_tvlv_ogm_handler_v1 - process incoming gateway tvlv container
* @bat_priv: the bat priv with all the soft interface information
* @orig: the orig_node of the ogm
* @flags: flags indicating the tvlv state (see batadv_tvlv_handler_flags)
* @tvlv_value: tvlv buffer containing the gateway data
* @tvlv_value_len: tvlv buffer length
*/
static void batadv_gw_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig,
uint8_t flags,
void *tvlv_value,
uint16_t tvlv_value_len)
{
struct batadv_tvlv_gateway_data gateway, *gateway_ptr;
/* only fetch the tvlv value if the handler wasn't called via the
* CIFNOTFND flag and if there is data to fetch
*/
if ((flags & BATADV_TVLV_HANDLER_OGM_CIFNOTFND) ||
(tvlv_value_len < sizeof(gateway))) {
gateway.bandwidth_down = 0;
gateway.bandwidth_up = 0;
} else {
gateway_ptr = tvlv_value;
gateway.bandwidth_down = gateway_ptr->bandwidth_down;
gateway.bandwidth_up = gateway_ptr->bandwidth_up;
if ((gateway.bandwidth_down == 0) ||
(gateway.bandwidth_up == 0)) {
gateway.bandwidth_down = 0;
gateway.bandwidth_up = 0;
}
}
batadv_gw_node_update(bat_priv, orig, &gateway);
/* restart gateway selection if fast or late switching was enabled */
if ((gateway.bandwidth_down != 0) &&
(atomic_read(&bat_priv->gw_mode) == BATADV_GW_MODE_CLIENT) &&
(atomic_read(&bat_priv->gw_sel_class) > 2))
batadv_gw_check_election(bat_priv, orig);
}
/**
* batadv_gw_tvlv_ogm_handler_v1() - process incoming gateway tvlv container
* @bat_priv: the bat priv with all the soft interface information
* @orig: the orig_node of the ogm
* @flags: flags indicating the tvlv state (see batadv_tvlv_handler_flags)
* @tvlv_value: tvlv buffer containing the gateway data
* @tvlv_value_len: tvlv buffer length
*/
static void batadv_gw_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig,
u8 flags,
void *tvlv_value, u16 tvlv_value_len)
{
struct batadv_tvlv_gateway_data gateway, *gateway_ptr;
/* only fetch the tvlv value if the handler wasn't called via the
* CIFNOTFND flag and if there is data to fetch
*/
if (flags & BATADV_TVLV_HANDLER_OGM_CIFNOTFND ||
tvlv_value_len < sizeof(gateway)) {
gateway.bandwidth_down = 0;
gateway.bandwidth_up = 0;
} else {
gateway_ptr = tvlv_value;
gateway.bandwidth_down = gateway_ptr->bandwidth_down;
gateway.bandwidth_up = gateway_ptr->bandwidth_up;
if (gateway.bandwidth_down == 0 ||
gateway.bandwidth_up == 0) {
gateway.bandwidth_down = 0;
gateway.bandwidth_up = 0;
}
}
batadv_gw_node_update(bat_priv, orig, &gateway);
/* restart gateway selection */
if (gateway.bandwidth_down != 0 &&
atomic_read(&bat_priv->gw.mode) == BATADV_GW_MODE_CLIENT)
batadv_gw_check_election(bat_priv, orig);
}