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_CORE_H 31 #define LWIP_HDR_DISTRIBUTED_NET_CORE_H 32 33 #include "lwip/opt.h" 34 35 #if LWIP_ENABLE_DISTRIBUTED_NET 36 37 #include "lwip/distributed_net/distributed_net.h" 38 #include "lwip/sockets.h" 39 40 #define DNS_PORT 53 41 42 #define CHECK_PARA(exp, err) \ 43 do { \ 44 if (!(exp)) { \ 45 set_errno(err); \ 46 return -1; \ 47 } \ 48 } while (0) 49 50 #define IS_LOCAL_UDP_SERVER_ADDR(addr) \ 51 ((addr)->sin_addr.s_addr == ipaddr_addr(LOCAL_SERVER_IP) && (addr)->sin_port == ntohs(get_local_udp_server_port())) 52 53 #define IS_DNS_PORT(addr) (ntohs((addr).sin_port) == DNS_PORT) 54 55 typedef struct tcp_connect_data { 56 char dest_addr[IP4_MAX_ADDR_LEN]; 57 u32_t dest_port; 58 } tcp_connect_data; 59 60 int distributed_net_connect(int sock, const struct sockaddr *addr, socklen_t addr_len); 61 62 int distributed_net_close(int sock); 63 64 #if LWIP_USE_GET_HOST_BY_NAME_EXTERNAL 65 ssize_t distributed_net_sendto(int sock, const void *buf, size_t buf_len, int flags, const struct sockaddr *addr, 66 socklen_t addr_len); 67 68 #if LWIP_DISTRIBUTED_NET_ENABLE_SENDMSG 69 ssize_t distributed_net_sendmsg(int sock, const struct msghdr *hdr, int flags); 70 #endif 71 72 ssize_t distributed_net_recvfrom(int sock, void *buf, size_t buf_len, int flags, struct sockaddr *from, 73 socklen_t *from_len); 74 #endif /* LWIP_USE_GET_HOST_BY_NAME_EXTERNAL */ 75 76 #endif /* LWIP_ENABLE_DISTRIBUTED_NET */ 77 78 #endif /* LWIP_HDR_DISTRIBUTED_NET_CORE_H */ 79