1 /* Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved. 2 * 3 * Redistribution and use in source and binary forms, with or without modification, 4 * are permitted provided that the following conditions are met: 5 * 6 * 1. Redistributions of source code must retain the above copyright notice, this list of 7 * conditions and the following disclaimer. 8 * 9 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 10 * of conditions and the following disclaimer in the documentation and/or other materials 11 * provided with the distribution. 12 * 13 * 3. Neither the name of the copyright holder nor the names of its contributors may be used 14 * to endorse or promote products derived from this software without specific prior written 15 * permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 19 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 27 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef LWIP_HDR_DISTRIBUTED_NET_H 31 #define LWIP_HDR_DISTRIBUTED_NET_H 32 33 #include "lwip/opt.h" 34 35 #if LWIP_ENABLE_DISTRIBUTED_NET 36 37 #include "lwip/sockets.h" 38 39 #define IP4_MAX_ADDR_LEN 16 /* strlen(255.255.255.255) + 1 */ 40 41 #define LOCAL_SERVER_IP "127.0.0.1" 42 43 #define SOCKET_TO_INDEX(socket) ((socket)-LWIP_SOCKET_OFFSET) 44 45 #define INDEX_TO_SOCKET(index) ((index) + LWIP_SOCKET_OFFSET) 46 47 #define MIN(a, b) ((a) < (b) ? (a) : (b)) 48 49 #define INIT_SOCK_ADDR(addr, ip_string, port) \ 50 do { \ 51 (addr)->sin_family = AF_INET; \ 52 (addr)->sin_port = lwip_htons(port); \ 53 (addr)->sin_addr.s_addr = ipaddr_addr(ip_string); \ 54 } while (0) 55 56 #define SET_MSG_ADDR(hdr, addr, addr_len) \ 57 do { \ 58 ((struct msghdr *)(hdr))->msg_name = (void *)(addr); \ 59 ((struct msghdr *)(hdr))->msg_namelen = (addr_len); \ 60 } while (0) 61 62 void set_distributed_net_socket(int sock); 63 64 void reset_distributed_net_socket(int sock); 65 66 u16_t get_local_tcp_server_port(void); 67 68 u16_t get_local_udp_server_port(void); 69 70 u8_t is_distributed_net_enabled(void); 71 72 int enable_distributed_net(u16_t tcp_port, u16_t udp_port); 73 74 int disable_distributed_net(void); 75 76 #endif /* LWIP_ENABLE_DISTRIBUTED_NET */ 77 78 #endif /* LWIP_HDR_DISTRIBUTED_NET_H */ 79