| /* |
| * Copyright (c) 2019, The OpenThread Authors. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the copyright holder nor the |
| * names of its contributors may be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** |
| * @file |
| * This file includes compile-time configurations for Border Router services. |
| * |
| */ |
| |
| #ifndef CONFIG_BORDER_ROUTER_H_ |
| #define CONFIG_BORDER_ROUTER_H_ |
| |
| /** |
| * @def OPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE |
| * |
| * Define to 1 to enable Border Router support. |
| * |
| */ |
| #ifndef OPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE |
| #define OPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE 0 |
| #endif |
| |
| /** |
| * @def OPENTHREAD_CONFIG_BORDER_ROUTER_REQUEST_ROUTER_ROLE |
| * |
| * Define to 1 to enable mechanism on a Border Router which provides IP connectivity to request router role upgrade. |
| * |
| * This config is applicable on an `OPENTHREAD_FTD` build and when `OPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE` is also |
| * enabled. |
| * |
| * A Border Router is considered to provide external IP connectivity if at least one of the below conditions hold: |
| * |
| * - It has added at least one external route entry. |
| * - It has added at least one prefix entry with default-route and on-mesh flags set. |
| * - It has added at least one domain prefix (domain and on-mesh flags set). |
| * |
| * A Border Router which provides IP connectivity and is acting as a REED is eligible to request a router role upgrade |
| * by sending an "Address Solicit" request to leader with status reason `BorderRouterRequest`. This reason is used when |
| * the number of active routers in the Thread mesh is above the threshold, and only if the number of existing eligible |
| * BRs (determined from the Thread Network Data) that are acting as router is less than two. This mechanism allows up |
| * to two eligible Border Routers to request router role upgrade when the number of routers is already above the |
| * threshold. |
| * |
| */ |
| #ifndef OPENTHREAD_CONFIG_BORDER_ROUTER_REQUEST_ROUTER_ROLE |
| #define OPENTHREAD_CONFIG_BORDER_ROUTER_REQUEST_ROUTER_ROLE 1 |
| #endif |
| |
| #endif // CONFIG_BORDER_ROUTER_H_ |