| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // ====================================================================== | ||
| 2 | // \title TcpServerSocket.cpp | ||
| 3 | // \author mstarch | ||
| 4 | // \brief cpp file for TcpServerSocket core implementation classes | ||
| 5 | // | ||
| 6 | // \copyright | ||
| 7 | // Copyright 2009-2020, by the California Institute of Technology. | ||
| 8 | // ALL RIGHTS RESERVED. United States Government Sponsorship | ||
| 9 | // acknowledged. | ||
| 10 | // | ||
| 11 | // ====================================================================== | ||
| 12 | #include <Drv/Ip/TcpServerSocket.hpp> | ||
| 13 | #include <Fw/FPrimeBasicTypes.hpp> | ||
| 14 | #include <Fw/Logger/Logger.hpp> | ||
| 15 | #include <Fw/Types/Assert.hpp> | ||
| 16 | |||
| 17 | #ifdef TGT_OS_TYPE_VXWORKS | ||
| 18 | #include <errnoLib.h> | ||
| 19 | #include <fioLib.h> | ||
| 20 | #include <hostLib.h> | ||
| 21 | #include <inetLib.h> | ||
| 22 | #include <ioLib.h> | ||
| 23 | #include <sockLib.h> | ||
| 24 | #include <socket.h> | ||
| 25 | #include <sysLib.h> | ||
| 26 | #include <taskLib.h> | ||
| 27 | #include <vxWorks.h> | ||
| 28 | #include <cstring> | ||
| 29 | #elif defined TGT_OS_TYPE_LINUX || TGT_OS_TYPE_DARWIN | ||
| 30 | #include <arpa/inet.h> | ||
| 31 | #include <sys/socket.h> | ||
| 32 | #include <unistd.h> | ||
| 33 | #else | ||
| 34 | #error OS not supported for IP Socket Communications | ||
| 35 | #endif | ||
| 36 | |||
| 37 | #include <cstring> | ||
| 38 | |||
| 39 | namespace Drv { | ||
| 40 | |||
| 41 | 2 | TcpServerSocket::TcpServerSocket() : IpSocket() {} | |
| 42 | |||
| 43 | 101 | U16 TcpServerSocket::getListenPort() { | |
| 44 | 101 | U16 port = this->m_port; | |
| 45 | 101 | return port; | |
| 46 | } | ||
| 47 | |||
| 48 | 2 | SocketIpStatus TcpServerSocket::startup(SocketDescriptor& socketDescriptor) { | |
| 49 | 2 | struct sockaddr_in address; | |
| 50 | // Acquire a socket, or return error | ||
| 51 | 2 | int serverFd = ::socket(AF_INET, SOCK_STREAM, 0); | |
| 52 |
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2 | if (serverFd == -1) { |
| 53 | ✗ | return SOCK_FAILED_TO_GET_SOCKET; | |
| 54 | } | ||
| 55 | // Set up the address port and name | ||
| 56 | 2 | address.sin_family = AF_INET; | |
| 57 | 2 | address.sin_port = htons(this->m_port); | |
| 58 | |||
| 59 | // OS specific settings | ||
| 60 | #if defined TGT_OS_TYPE_VXWORKS || TGT_OS_TYPE_DARWIN | ||
| 61 | address.sin_len = static_cast<U8>(sizeof(struct sockaddr_in)); | ||
| 62 | #endif | ||
| 63 | // Convert the configured IPv4 address (dotted-quad) to a network-order in_addr. | ||
| 64 |
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2 | const SocketIpStatus addressStatus = IpSocket::addressToIp4(this->m_ipv4_address, &(address.sin_addr)); |
| 65 |
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2 | if (addressStatus != SOCK_SUCCESS) { |
| 66 | ✗ | (void)::close(serverFd); | |
| 67 | ✗ | return SOCK_INVALID_IP_ADDRESS; | |
| 68 | }; | ||
| 69 | |||
| 70 |
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2 | if (IpSocket::setupSocketOptions(serverFd) != SOCK_SUCCESS) { |
| 71 | ✗ | (void)::close(serverFd); | |
| 72 | ✗ | return SOCK_FAILED_TO_SET_SOCKET_OPTIONS; | |
| 73 | } | ||
| 74 | |||
| 75 | // TCP requires bind to an address to the socket | ||
| 76 |
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2 | if (::bind(serverFd, reinterpret_cast<struct sockaddr*>(&address), sizeof(address)) < 0) { |
| 77 | ✗ | (void)::close(serverFd); | |
| 78 | ✗ | return SOCK_FAILED_TO_BIND; | |
| 79 | } | ||
| 80 | |||
| 81 | 2 | socklen_t size = sizeof(address); | |
| 82 | 2 | const int socknameStatus = ::getsockname(serverFd, reinterpret_cast<struct sockaddr*>(&address), &size); | |
| 83 |
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2 | if (socknameStatus == -1) { |
| 84 | ✗ | (void)::close(serverFd); | |
| 85 | ✗ | return SOCK_FAILED_TO_READ_BACK_PORT; | |
| 86 | } | ||
| 87 | // TCP requires listening on the socket. Since we only expect a single client, set the TCP backlog (second argument) | ||
| 88 | // to 1 to prevent queuing of multiple clients. | ||
| 89 |
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2 | if (::listen(serverFd, 1) < 0) { |
| 90 | ✗ | (void)::close(serverFd); | |
| 91 | ✗ | return SOCK_FAILED_TO_LISTEN; // What we have here is a failure to communicate | |
| 92 | } | ||
| 93 |
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2 | Fw::Logger::log("Listening for single client at %s:%hu\n", this->m_ipv4_address, this->m_port); |
| 94 | 2 | FW_ASSERT(serverFd != -1); | |
| 95 | 2 | socketDescriptor.serverFd = serverFd; | |
| 96 | 2 | this->m_port = ntohs(address.sin_port); | |
| 97 | 2 | return SOCK_SUCCESS; | |
| 98 | } | ||
| 99 | |||
| 100 | 2 | void TcpServerSocket::terminate(const SocketDescriptor& socketDescriptor) { | |
| 101 |
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2 | if (socketDescriptor.serverFd >= 0) { |
| 102 | 2 | (void)::shutdown(socketDescriptor.serverFd, SHUT_RDWR); // Shutdown first to avoid hanging "accept" calls | |
| 103 | 2 | (void)::close(socketDescriptor.serverFd); | |
| 104 | } | ||
| 105 | 2 | } | |
| 106 | |||
| 107 | 101 | SocketIpStatus TcpServerSocket::openProtocol(SocketDescriptor& socketDescriptor) { | |
| 108 | 101 | int clientFd = -1; | |
| 109 | 101 | int serverFd = socketDescriptor.serverFd; | |
| 110 | |||
| 111 | // Check for not started yet, may be true in the case of start-up reconnect attempts | ||
| 112 |
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101 | if (serverFd == -1) { |
| 113 | ✗ | return SOCK_NOT_STARTED; | |
| 114 | } | ||
| 115 | |||
| 116 | // TCP requires accepting on the socket to get the client socket file descriptor. | ||
| 117 | 101 | clientFd = ::accept(serverFd, nullptr, nullptr); | |
| 118 |
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101 | if (clientFd < 0) { |
| 119 | ✗ | return SOCK_FAILED_TO_ACCEPT; // What we have here is a failure to communicate | |
| 120 | } | ||
| 121 | // Setup client send timeouts | ||
| 122 |
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101 | if (IpSocket::setupTimeouts(clientFd) != SOCK_SUCCESS) { |
| 123 | ✗ | (void)::close(clientFd); | |
| 124 | ✗ | return SOCK_FAILED_TO_SET_SOCKET_OPTIONS; | |
| 125 | } | ||
| 126 | |||
| 127 | 101 | Fw::Logger::log("Accepted client at %s:%hu\n", this->m_ipv4_address, this->m_port); | |
| 128 | 101 | socketDescriptor.fd = clientFd; | |
| 129 | 101 | return SOCK_SUCCESS; | |
| 130 | } | ||
| 131 | |||
| 132 | 101 | FwSignedSizeType TcpServerSocket::sendProtocol(const SocketDescriptor& socketDescriptor, | |
| 133 | const U8* const data, | ||
| 134 | const FwSizeType size) { | ||
| 135 | return static_cast<FwSignedSizeType>( | ||
| 136 | 101 | ::send(socketDescriptor.fd, data, static_cast<size_t>(size), SOCKET_IP_SEND_FLAGS)); | |
| 137 | } | ||
| 138 | |||
| 139 | 202 | FwSignedSizeType TcpServerSocket::recvProtocol(const SocketDescriptor& socketDescriptor, | |
| 140 | U8* const data, | ||
| 141 | const FwSizeType size) { | ||
| 142 | // recv will return 0 if the client has done an orderly shutdown | ||
| 143 | return static_cast<FwSignedSizeType>( | ||
| 144 | 202 | ::recv(socketDescriptor.fd, data, static_cast<size_t>(size), SOCKET_IP_RECV_FLAGS)); | |
| 145 | } | ||
| 146 | |||
| 147 | } // namespace Drv | ||
| 148 |