Vadim Iosevich | d50ea46 | 2017-03-30 16:19:08 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017, The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions are |
| 6 | * met: |
| 7 | * * Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * * Redistributions in binary form must reproduce the above |
| 10 | * copyright notice, this list of conditions and the following |
| 11 | * disclaimer in the documentation and/or other materials provided |
| 12 | * with the distribution. |
| 13 | * * Neither the name of The Linux Foundation nor the names of its |
| 14 | * contributors may be used to endorse or promote products derived |
| 15 | * from this software without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 21 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 22 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 23 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 24 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 25 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 26 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 27 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | */ |
| 29 | |
| 30 | #ifndef __udp_server_h |
| 31 | #define __udp_server_h |
| 32 | |
| 33 | class UdpServer |
| 34 | { |
| 35 | public: |
| 36 | int start(int localUdpPortIn, int remoteUdpPortIn); |
| 37 | int stop(); |
| 38 | |
| 39 | static int SendAll(std::string message); |
| 40 | static std::string GetHostDetails() { return UdpServer::cmd_get_host_identity + UdpServer::cmd_delimiter + host_ip + UdpServer::cmd_delimiter + host_alias; } |
| 41 | static void SetHostAlias(std::string alias) { host_alias = alias; } |
| 42 | |
| 43 | static const std::string host_details_file_name; |
| 44 | |
| 45 | private: |
| 46 | // members |
| 47 | static const std::string local_host; |
| 48 | static const std::string cmd_get_host_identity; |
| 49 | static const std::string cmd_delimiter; |
| 50 | static std::string host_broadcast_ip; |
| 51 | static std::string host_ip; |
| 52 | static std::string host_alias; |
| 53 | static int sock_in; |
| 54 | static int sock_out; |
| 55 | static int port_in; |
| 56 | static int port_out; |
| 57 | |
| 58 | // methods |
| 59 | static void* start_udp_server(void* unused); |
| 60 | static int LoadHostDetails(); |
| 61 | static int LoadHostIp(); // assumption: each host has only one IP address for ethernet interfaces |
| 62 | static void LoadHostAlias(); |
| 63 | static int HandleRequest(char* buf); |
| 64 | static int LoadHostAndBroadcastIps(); |
| 65 | }; |
| 66 | |
| 67 | #endif // udp_server_h |