/** * batadv_gw_tvlv_container_update() - update the gw tvlv container after * gateway setting change * @bat_priv: the bat priv with all the mesh interface information
*/ void batadv_gw_tvlv_container_update(struct batadv_priv *bat_priv)
{ struct batadv_tvlv_gateway_data gw;
u32 down, up; char gw_mode;
gw_mode = atomic_read(&bat_priv->gw.mode);
switch (gw_mode) { case BATADV_GW_MODE_OFF: case BATADV_GW_MODE_CLIENT:
batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_GW, 1); break; case BATADV_GW_MODE_SERVER:
down = atomic_read(&bat_priv->gw.bandwidth_down);
up = atomic_read(&bat_priv->gw.bandwidth_up);
gw.bandwidth_down = htonl(down);
gw.bandwidth_up = htonl(up);
batadv_tvlv_container_register(bat_priv, BATADV_TVLV_GW, 1,
&gw, sizeof(gw)); break;
}
}
/** * batadv_gw_tvlv_ogm_handler_v1() - process incoming gateway tvlv container * @bat_priv: the bat priv with all the mesh 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
*/ staticvoid 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_init() - initialise the gateway handling internals * @bat_priv: the bat priv with all the mesh interface information
*/ void batadv_gw_init(struct batadv_priv *bat_priv)
{ if (bat_priv->algo_ops->gw.init_sel_class)
bat_priv->algo_ops->gw.init_sel_class(bat_priv); else
atomic_set(&bat_priv->gw.sel_class, 1);
/** * batadv_gw_free() - free the gateway handling internals * @bat_priv: the bat priv with all the mesh interface information
*/ void batadv_gw_free(struct batadv_priv *bat_priv)
{
batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_GW, 1);
batadv_tvlv_handler_unregister(bat_priv, BATADV_TVLV_GW, 1);
}
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