1 | // Copyright (c) Microsoft. All rights reserved.
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2 | // Licensed under the MIT license. See LICENSE file in the project root for full license information.
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3 |
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4 | #ifndef _BSD_SOURCE
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5 | #define _BSD_SOURCE
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6 | #define SOCKETIO_BERKELEY_UNDEF_BSD_SOURCE
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7 | #endif
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8 |
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9 | #define _DEFAULT_SOURCE
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10 | #include <net/if.h>
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11 | #undef _DEFAULT_SOURCE
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12 |
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13 | #ifdef SOCKETIO_BERKELEY_UNDEF_BSD_SOURCE
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14 | #undef _BSD_SOURCE
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15 | #undef SOCKETIO_BERKELEY_UNDEF_BSD_SOURCE
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16 | #endif
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17 |
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18 | #ifndef MSG_NOSIGNAL
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19 | #define MSG_NOSIGNAL 0
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20 | #endif
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21 |
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22 | #include <signal.h>
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23 | #include <stdlib.h>
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24 | #include <stddef.h>
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25 | #include <stdio.h>
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26 | #include <string.h>
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27 | #include <ctype.h>
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28 | #include "azure_c_shared_utility/socketio.h"
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29 | #include <sys/types.h>
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30 | #include <sys/socket.h>
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31 | #include <sys/select.h>
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32 | #ifdef TIZENRT
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33 | #include <net/lwip/tcp.h>
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34 | #else
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35 | #include <lwip/tcp.h>
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36 | #endif
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37 | #include <netdb.h>
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38 | #include <unistd.h>
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39 | //#include <fcntl.h>
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40 | #include <errno.h>
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41 | #include "azure_c_shared_utility/singlylinkedlist.h"
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42 | #include "azure_c_shared_utility/gballoc.h"
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43 | #include "azure_c_shared_utility/gbnetwork.h"
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44 | #include "azure_c_shared_utility/optimize_size.h"
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45 | #include "azure_c_shared_utility/optionhandler.h"
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46 | #include "azure_c_shared_utility/shared_util_options.h"
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47 | #include "azure_c_shared_utility/xlogging.h"
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48 | #include "azure_c_shared_utility/const_defines.h"
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49 | #include "azure_c_shared_utility/dns_resolver.h"
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50 | //#include <sys/ioctl.h>
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51 | //#include <netinet/in.h>
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52 | //#include <arpa/inet.h>
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53 | //#include <sys/un.h>
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54 |
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55 | #define SOCKET_SUCCESS 0
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56 | #define INVALID_SOCKET -1
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57 | #define SOCKET_SEND_FAILURE -1
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58 | #define MAC_ADDRESS_STRING_LENGTH 18
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59 |
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60 | #ifndef IFREQ_BUFFER_SIZE
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61 | #define IFREQ_BUFFER_SIZE 1024
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62 | #endif
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63 |
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64 | // connect timeout in seconds
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65 | #define CONNECT_TIMEOUT 10
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66 |
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67 | typedef enum IO_STATE_TAG
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68 | {
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69 | IO_STATE_CLOSED,
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70 | IO_STATE_OPENING,
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71 | IO_STATE_OPEN,
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72 | IO_STATE_CLOSING,
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73 | IO_STATE_ERROR
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74 | } IO_STATE;
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75 |
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76 | typedef struct PENDING_SOCKET_IO_TAG
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77 | {
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78 | unsigned char* bytes;
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79 | size_t size;
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80 | ON_SEND_COMPLETE on_send_complete;
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81 | void* callback_context;
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82 | SINGLYLINKEDLIST_HANDLE pending_io_list;
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83 | } PENDING_SOCKET_IO;
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84 |
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85 | typedef struct SOCKET_IO_INSTANCE_TAG
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86 | {
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87 | int socket;
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88 | SOCKETIO_ADDRESS_TYPE address_type;
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89 | ON_BYTES_RECEIVED on_bytes_received;
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90 | ON_IO_ERROR on_io_error;
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91 | ON_IO_OPEN_COMPLETE on_io_open_complete;
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92 | void* on_bytes_received_context;
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93 | void* on_io_error_context;
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94 | void* on_io_open_complete_context;
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95 | char* hostname;
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96 | int port;
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97 | char* target_mac_address;
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98 | IO_STATE io_state;
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99 | SINGLYLINKEDLIST_HANDLE pending_io_list;
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100 | unsigned char recv_bytes[XIO_RECEIVE_BUFFER_SIZE];
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101 | DNSRESOLVER_HANDLE dns_resolver;
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102 | } SOCKET_IO_INSTANCE;
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103 |
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104 | typedef struct NETWORK_INTERFACE_DESCRIPTION_TAG
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105 | {
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106 | char* name;
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107 | char* mac_address;
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108 | char* ip_address;
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109 | struct NETWORK_INTERFACE_DESCRIPTION_TAG* next;
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110 | } NETWORK_INTERFACE_DESCRIPTION;
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111 |
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112 | /*this function will clone an option given by name and value*/
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113 | static void* socketio_lwip_CloneOption(const char* name, const void* value)
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114 | {
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115 | void* result;
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116 |
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117 | if (name != NULL)
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118 | {
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119 | result = NULL;
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120 |
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121 | if (strcmp(name, OPTION_NET_INT_MAC_ADDRESS) == 0)
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122 | {
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123 | if (value == NULL)
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124 | {
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125 | LogError("Failed cloning option %s (value is NULL)", name);
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126 | }
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127 | else
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128 | {
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129 | if ((result = malloc(sizeof(char) * (strlen((char*)value) + 1))) == NULL)
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130 | {
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131 | LogError("Failed cloning option %s (malloc failed)", name);
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132 | }
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133 | else if (strcpy((char*)result, (char*)value) == NULL)
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134 | {
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135 | LogError("Failed cloning option %s (strcpy failed)", name);
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136 | free(result);
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137 | result = NULL;
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138 | }
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139 | }
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140 | }
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141 | else
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142 | {
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143 | LogError("Cannot clone option %s (not suppported)", name);
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144 | }
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145 | }
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146 | else
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147 | {
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148 | result = NULL;
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149 | }
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150 | return result;
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151 | }
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152 |
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153 | /*this function destroys an option previously created*/
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154 | static void socketio_lwip_DestroyOption(const char* name, const void* value)
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155 | {
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156 | if (name != NULL)
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157 | {
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158 | if (strcmp(name, OPTION_NET_INT_MAC_ADDRESS) == 0 && value != NULL)
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159 | {
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160 | free((void*)value);
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161 | }
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162 | }
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163 | }
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164 |
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165 | CONCRETE_IO_HANDLE socketio_lwip_create(void* io_create_parameters);
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166 | void socketio_lwip_destroy(CONCRETE_IO_HANDLE socket_io);
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167 | int socketio_lwip_open(CONCRETE_IO_HANDLE socket_io, ON_IO_OPEN_COMPLETE on_io_open_complete, void* on_io_open_complete_context, ON_BYTES_RECEIVED on_bytes_received, void* on_bytes_received_context, ON_IO_ERROR on_io_error, void* on_io_error_context);
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168 | int socketio_lwip_close(CONCRETE_IO_HANDLE socket_io, ON_IO_CLOSE_COMPLETE on_io_close_complete, void* callback_context);
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169 | int socketio_lwip_send(CONCRETE_IO_HANDLE socket_io, const void* buffer, size_t size, ON_SEND_COMPLETE on_send_complete, void* callback_context);
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170 | void socketio_lwip_dowork(CONCRETE_IO_HANDLE socket_io);
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171 | int socketio_lwip_setoption(CONCRETE_IO_HANDLE socket_io, const char* optionName, const void* value);
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172 |
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173 | static OPTIONHANDLER_HANDLE socketio_lwip_retrieveoptions(CONCRETE_IO_HANDLE handle)
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174 | {
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175 | OPTIONHANDLER_HANDLE result;
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176 |
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177 | if (handle == NULL)
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178 | {
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179 | LogError("failed retrieving options (handle is NULL)");
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180 | result = NULL;
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181 | }
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182 | else
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183 | {
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184 | SOCKET_IO_INSTANCE* socket_io_instance = (SOCKET_IO_INSTANCE*)handle;
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185 |
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186 | result = OptionHandler_Create(socketio_lwip_CloneOption, socketio_lwip_DestroyOption, socketio_lwip_setoption);
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187 | if (result == NULL)
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188 | {
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189 | LogError("unable to OptionHandler_Create");
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190 | }
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191 | else if (socket_io_instance->target_mac_address != NULL &&
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192 | OptionHandler_AddOption(result, OPTION_NET_INT_MAC_ADDRESS, socket_io_instance->target_mac_address) != OPTIONHANDLER_OK)
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193 | {
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194 | LogError("failed retrieving options (failed adding net_interface_mac_address)");
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195 | OptionHandler_Destroy(result);
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196 | result = NULL;
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197 | }
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198 | }
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199 |
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200 | return result;
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201 | }
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202 |
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203 | static const IO_INTERFACE_DESCRIPTION socket_io_interface_description =
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204 | {
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205 | socketio_lwip_retrieveoptions,
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206 | socketio_lwip_create,
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207 | socketio_lwip_destroy,
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208 | socketio_lwip_open,
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209 | socketio_lwip_close,
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210 | socketio_lwip_send,
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211 | socketio_lwip_dowork,
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212 | socketio_lwip_setoption
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213 | };
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214 |
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215 | static void indicate_error(SOCKET_IO_INSTANCE* socket_io_instance)
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216 | {
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217 | socket_io_instance->io_state = IO_STATE_ERROR;
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218 | if (socket_io_instance->on_io_error != NULL)
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219 | {
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220 | socket_io_instance->on_io_error(socket_io_instance->on_io_error_context);
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221 | }
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222 | }
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223 |
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224 | static int add_pending_io(SOCKET_IO_INSTANCE* socket_io_instance, const unsigned char* buffer, size_t size, ON_SEND_COMPLETE on_send_complete, void* callback_context)
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225 | {
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226 | int result;
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227 | PENDING_SOCKET_IO* pending_socket_io = (PENDING_SOCKET_IO*)malloc(sizeof(PENDING_SOCKET_IO));
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228 | if (pending_socket_io == NULL)
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229 | {
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230 | result = MU_FAILURE;
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231 | }
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232 | else
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233 | {
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234 | pending_socket_io->bytes = (unsigned char*)malloc(size);
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235 | if (pending_socket_io->bytes == NULL)
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236 | {
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237 | LogError("Allocation Failure: Unable to allocate pending list.");
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238 | free(pending_socket_io);
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239 | result = MU_FAILURE;
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240 | }
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241 | else
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242 | {
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243 | pending_socket_io->size = size;
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244 | pending_socket_io->on_send_complete = on_send_complete;
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245 | pending_socket_io->callback_context = callback_context;
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246 | pending_socket_io->pending_io_list = socket_io_instance->pending_io_list;
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247 | (void)memcpy(pending_socket_io->bytes, buffer, size);
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248 |
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249 | if (singlylinkedlist_add(socket_io_instance->pending_io_list, pending_socket_io) == NULL)
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250 | {
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251 | LogError("Failure: Unable to add socket to pending list.");
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252 | free(pending_socket_io->bytes);
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253 | free(pending_socket_io);
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254 | result = MU_FAILURE;
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255 | }
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256 | else
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257 | {
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258 | result = 0;
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259 | }
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260 | }
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261 | }
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262 | return result;
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263 | }
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264 |
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265 | static STATIC_VAR_UNUSED void signal_callback(int signum)
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266 | {
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267 | AZURE_UNREFERENCED_PARAMETER(signum);
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268 | LogError("Socket received signal %d.", signum);
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269 | }
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270 |
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271 | static int lookup_address(SOCKET_IO_INSTANCE* socket_io_instance)
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272 | {
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273 | int result = 0;
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274 |
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275 | if (socket_io_instance->address_type == ADDRESS_TYPE_IP)
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276 | {
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277 | if (!dns_resolver_is_lookup_complete(socket_io_instance->dns_resolver))
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278 | {
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279 | socket_io_instance->io_state = IO_STATE_OPENING;
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280 | }
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281 | else
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282 | {
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283 | socket_io_instance->io_state = IO_STATE_OPEN;
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284 | }
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285 | }
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286 | else //ADDRESS_TYPE_DOMAIN_SOCKET
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287 | {
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288 | socket_io_instance->io_state = IO_STATE_OPEN;
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289 | }
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290 |
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291 | return result;
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292 | }
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293 |
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294 | static int initiate_socket_connection(SOCKET_IO_INSTANCE* socket_io_instance)
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295 | {
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296 | int result;
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297 | int flags;
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298 | struct addrinfo* addr = NULL;
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299 | struct sockaddr* connect_addr = NULL;
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300 | struct sockaddr_un addrInfoUn;
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301 | socklen_t connect_addr_len;
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302 |
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303 | if (socket_io_instance->address_type == ADDRESS_TYPE_IP)
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304 | {
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305 | if(!dns_resolver_is_lookup_complete(socket_io_instance->dns_resolver))
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306 | {
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307 | LogError("DNS did not resolve IP address");
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308 | result = MU_FAILURE;
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309 | }
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310 | else
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311 | {
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312 | addr = dns_resolver_get_addrInfo(socket_io_instance->dns_resolver);
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313 |
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314 | if (addr == NULL)
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315 | {
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316 | LogError("DNS resolution failed");
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317 | result = MU_FAILURE;
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318 | }
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319 | else
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320 | {
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321 | connect_addr = addr->ai_addr;
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322 | connect_addr_len = sizeof(*addr->ai_addr);
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323 | result = 0;
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324 | }
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325 | }
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326 | }
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327 | else
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328 | {
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329 | size_t hostname_len = strlen(socket_io_instance->hostname);
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330 | if (hostname_len + 1 > sizeof(addrInfoUn.sun_path))
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331 | {
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332 | LogError("Hostname %s is too long for a unix socket (max len = %lu)", socket_io_instance->hostname, (unsigned long)sizeof(addrInfoUn.sun_path));
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333 | result = MU_FAILURE;
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334 | }
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335 | else
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336 | {
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337 | memset(&addrInfoUn, 0, sizeof(addrInfoUn));
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338 | addrInfoUn.sun_family = AF_UNIX;
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339 | // No need to add NULL terminator due to the above memset
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340 | (void)memcpy(addrInfoUn.sun_path, socket_io_instance->hostname, hostname_len);
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341 |
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342 | connect_addr = (struct sockaddr*)&addrInfoUn;
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343 | connect_addr_len = sizeof(addrInfoUn);
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344 | result = 0;
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345 | }
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346 | }
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347 |
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348 | if (result == 0)
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349 | {
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350 | if ((-1 == (flags = fcntl(socket_io_instance->socket, F_GETFL, 0))) ||
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351 | (fcntl(socket_io_instance->socket, F_SETFL, flags | O_NONBLOCK) == -1))
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352 | {
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353 | LogError("Failure: fcntl failure.");
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354 | result = MU_FAILURE;
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355 | }
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356 | else
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357 | {
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358 | result = connect(socket_io_instance->socket, connect_addr, connect_addr_len);
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359 | if ((result != 0) && (errno != EINPROGRESS))
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360 | {
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361 | LogError("Failure: connect failure %d.", errno);
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362 | result = MU_FAILURE;
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363 | }
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364 | else
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365 | {
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366 | // Async connect will return -1.
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367 | result = 0;
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368 | if (socket_io_instance->on_io_open_complete != NULL)
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369 | {
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370 | socket_io_instance->on_io_open_complete(socket_io_instance->on_io_open_complete_context, IO_OPEN_OK /*: IO_OPEN_ERROR*/);
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371 | }
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372 | }
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373 | }
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374 | }
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375 |
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376 | return result;
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377 | }
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378 |
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379 | static int lookup_address_and_initiate_socket_connection(SOCKET_IO_INSTANCE* socket_io_instance)
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380 | {
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381 | int result;
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382 |
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383 | result = lookup_address(socket_io_instance);
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384 |
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385 | if(socket_io_instance->io_state == IO_STATE_OPEN)
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386 | {
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387 | if (result == 0)
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388 | {
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389 | result = initiate_socket_connection(socket_io_instance);
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390 | }
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391 | }
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392 |
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393 | return result;
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394 | }
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395 |
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396 | static int wait_for_connection(SOCKET_IO_INSTANCE* socket_io_instance)
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397 | {
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398 | int result;
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399 | int err;
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400 | int retval;
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401 | int select_errno = 0;
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402 |
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403 | fd_set fdset;
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404 | struct timeval tv;
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405 |
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406 | FD_ZERO(&fdset);
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407 | FD_SET(socket_io_instance->socket, &fdset);
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408 | tv.tv_sec = CONNECT_TIMEOUT;
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409 | tv.tv_usec = 0;
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410 |
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411 | do
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412 | {
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413 | retval = select(socket_io_instance->socket + 1, NULL, &fdset, NULL, &tv);
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414 |
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415 | if (retval < 0)
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416 | {
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417 | select_errno = errno;
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418 | }
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419 | } while (retval < 0 && select_errno == EINTR);
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420 |
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421 | if (retval != 1)
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422 | {
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423 | LogError("Failure: select failure.");
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424 | result = MU_FAILURE;
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425 | }
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426 | else
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427 | {
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428 | int so_error = 0;
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429 | socklen_t len = sizeof(so_error);
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430 | err = getsockopt(socket_io_instance->socket, SOL_SOCKET, SO_ERROR, &so_error, &len);
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431 | if (err != 0)
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432 | {
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433 | LogError("Failure: getsockopt failure %d.", errno);
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434 | result = MU_FAILURE;
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435 | }
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436 | else if (so_error != 0)
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437 | {
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438 | err = so_error;
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439 | LogError("Failure: connect failure %d.", so_error);
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440 | result = MU_FAILURE;
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441 | }
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442 | else
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443 | {
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444 | result = 0;
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445 | }
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446 | }
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447 |
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448 | return result;
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449 | }
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450 |
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451 |
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452 |
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453 | #ifndef __APPLE__
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454 | static void destroy_network_interface_descriptions(NETWORK_INTERFACE_DESCRIPTION* nid)
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455 | {
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456 | if (nid != NULL)
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457 | {
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458 | if (nid->next != NULL)
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459 | {
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460 | destroy_network_interface_descriptions(nid->next);
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461 | }
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462 |
|
---|
463 | if (nid->name != NULL)
|
---|
464 | {
|
---|
465 | free(nid->name);
|
---|
466 | }
|
---|
467 |
|
---|
468 | if (nid->mac_address != NULL)
|
---|
469 | {
|
---|
470 | free(nid->mac_address);
|
---|
471 | }
|
---|
472 |
|
---|
473 | if (nid->ip_address != NULL)
|
---|
474 | {
|
---|
475 | free(nid->ip_address);
|
---|
476 | }
|
---|
477 |
|
---|
478 | free(nid);
|
---|
479 | }
|
---|
480 | }
|
---|
481 |
|
---|
482 | static NETWORK_INTERFACE_DESCRIPTION* create_network_interface_description(struct ifreq *ifr, NETWORK_INTERFACE_DESCRIPTION* previous_nid)
|
---|
483 | {
|
---|
484 | NETWORK_INTERFACE_DESCRIPTION* result;
|
---|
485 |
|
---|
486 | if ((result = (NETWORK_INTERFACE_DESCRIPTION*)malloc(sizeof(NETWORK_INTERFACE_DESCRIPTION))) == NULL)
|
---|
487 | {
|
---|
488 | LogError("Failed allocating NETWORK_INTERFACE_DESCRIPTION");
|
---|
489 | }
|
---|
490 | else if ((result->name = (char*)malloc(sizeof(char) * (strlen(ifr->ifr_name) + 1))) == NULL)
|
---|
491 | {
|
---|
492 | LogError("failed setting interface description name (malloc failed)");
|
---|
493 | destroy_network_interface_descriptions(result);
|
---|
494 | result = NULL;
|
---|
495 | }
|
---|
496 | else if (strcpy(result->name, ifr->ifr_name) == NULL)
|
---|
497 | {
|
---|
498 | LogError("failed setting interface description name (strcpy failed)");
|
---|
499 | destroy_network_interface_descriptions(result);
|
---|
500 | result = NULL;
|
---|
501 | }
|
---|
502 | else
|
---|
503 | {
|
---|
504 | char* ip_address;
|
---|
505 | unsigned char* mac = (unsigned char*)ifr->ifr_hwaddr.sa_data;
|
---|
506 |
|
---|
507 | if ((result->mac_address = (char*)malloc(sizeof(char) * MAC_ADDRESS_STRING_LENGTH)) == NULL)
|
---|
508 | {
|
---|
509 | LogError("failed formatting mac address (malloc failed)");
|
---|
510 | destroy_network_interface_descriptions(result);
|
---|
511 | result = NULL;
|
---|
512 | }
|
---|
513 | else if (sprintf(result->mac_address, "%02X:%02X:%02X:%02X:%02X:%02X", mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]) <= 0)
|
---|
514 | {
|
---|
515 | LogError("failed formatting mac address (sprintf failed)");
|
---|
516 | destroy_network_interface_descriptions(result);
|
---|
517 | result = NULL;
|
---|
518 | }
|
---|
519 | else if ((ip_address = inet_ntoa(((struct sockaddr_in*)&ifr->ifr_addr)->sin_addr)) == NULL)
|
---|
520 | {
|
---|
521 | LogError("failed setting the ip address (inet_ntoa failed)");
|
---|
522 | destroy_network_interface_descriptions(result);
|
---|
523 | result = NULL;
|
---|
524 | }
|
---|
525 | else if ((result->ip_address = (char*)malloc(sizeof(char) * (strlen(ip_address) + 1))) == NULL)
|
---|
526 | {
|
---|
527 | LogError("failed setting the ip address (malloc failed)");
|
---|
528 | destroy_network_interface_descriptions(result);
|
---|
529 | result = NULL;
|
---|
530 | }
|
---|
531 | else if (strcpy(result->ip_address, ip_address) == NULL)
|
---|
532 | {
|
---|
533 | LogError("failed setting the ip address (strcpy failed)");
|
---|
534 | destroy_network_interface_descriptions(result);
|
---|
535 | result = NULL;
|
---|
536 | }
|
---|
537 | else
|
---|
538 | {
|
---|
539 | result->next = NULL;
|
---|
540 |
|
---|
541 | if (previous_nid != NULL)
|
---|
542 | {
|
---|
543 | previous_nid->next = result;
|
---|
544 | }
|
---|
545 | }
|
---|
546 | }
|
---|
547 |
|
---|
548 | return result;
|
---|
549 | }
|
---|
550 |
|
---|
551 | static int get_network_interface_descriptions(int socket, NETWORK_INTERFACE_DESCRIPTION** nid)
|
---|
552 | {
|
---|
553 | int result;
|
---|
554 |
|
---|
555 | struct ifreq ifr;
|
---|
556 | struct ifconf ifc;
|
---|
557 | char buf[IFREQ_BUFFER_SIZE];
|
---|
558 |
|
---|
559 | ifc.ifc_len = sizeof(buf);
|
---|
560 | ifc.ifc_buf = buf;
|
---|
561 |
|
---|
562 | if (ioctl(socket, SIOCGIFCONF, &ifc) == -1)
|
---|
563 | {
|
---|
564 | LogError("ioctl failed querying socket (SIOCGIFCONF, errno=%d)", errno);
|
---|
565 | result = MU_FAILURE;
|
---|
566 | }
|
---|
567 | else
|
---|
568 | {
|
---|
569 | NETWORK_INTERFACE_DESCRIPTION* root_nid = NULL;
|
---|
570 | NETWORK_INTERFACE_DESCRIPTION* new_nid = NULL;
|
---|
571 |
|
---|
572 | struct ifreq* it = ifc.ifc_req;
|
---|
573 | const struct ifreq* const end = it + (ifc.ifc_len / sizeof(struct ifreq));
|
---|
574 |
|
---|
575 | result = 0;
|
---|
576 |
|
---|
577 | for (; it != end; ++it)
|
---|
578 | {
|
---|
579 | strcpy(ifr.ifr_name, it->ifr_name);
|
---|
580 |
|
---|
581 | if (ioctl(socket, SIOCGIFFLAGS, &ifr) != 0)
|
---|
582 | {
|
---|
583 | LogError("ioctl failed querying socket (SIOCGIFFLAGS, errno=%d)", errno);
|
---|
584 | result = MU_FAILURE;
|
---|
585 | break;
|
---|
586 | }
|
---|
587 | else if (ioctl(socket, SIOCGIFHWADDR, &ifr) != 0)
|
---|
588 | {
|
---|
589 | LogError("ioctl failed querying socket (SIOCGIFHWADDR, errno=%d)", errno);
|
---|
590 | result = MU_FAILURE;
|
---|
591 | break;
|
---|
592 | }
|
---|
593 | else if (ioctl(socket, SIOCGIFADDR, &ifr) != 0)
|
---|
594 | {
|
---|
595 | LogError("ioctl failed querying socket (SIOCGIFADDR, errno=%d)", errno);
|
---|
596 | result = MU_FAILURE;
|
---|
597 | break;
|
---|
598 | }
|
---|
599 | else if ((new_nid = create_network_interface_description(&ifr, new_nid)) == NULL)
|
---|
600 | {
|
---|
601 | LogError("Failed creating network interface description");
|
---|
602 | result = MU_FAILURE;
|
---|
603 | break;
|
---|
604 | }
|
---|
605 | else if (root_nid == NULL)
|
---|
606 | {
|
---|
607 | root_nid = new_nid;
|
---|
608 | }
|
---|
609 | }
|
---|
610 |
|
---|
611 | if (result == 0)
|
---|
612 | {
|
---|
613 | *nid = root_nid;
|
---|
614 | }
|
---|
615 | else
|
---|
616 | {
|
---|
617 | destroy_network_interface_descriptions(root_nid);
|
---|
618 | }
|
---|
619 | }
|
---|
620 |
|
---|
621 | return result;
|
---|
622 | }
|
---|
623 |
|
---|
624 | static int set_target_network_interface(int socket, char* mac_address)
|
---|
625 | {
|
---|
626 | int result;
|
---|
627 | NETWORK_INTERFACE_DESCRIPTION* nid;
|
---|
628 |
|
---|
629 | if (get_network_interface_descriptions(socket, &nid) != 0)
|
---|
630 | {
|
---|
631 | LogError("Failed getting network interface descriptions");
|
---|
632 | result = MU_FAILURE;
|
---|
633 | }
|
---|
634 | else
|
---|
635 | {
|
---|
636 | NETWORK_INTERFACE_DESCRIPTION* current_nid = nid;
|
---|
637 |
|
---|
638 | while(current_nid != NULL)
|
---|
639 | {
|
---|
640 | if (strcmp(mac_address, current_nid->mac_address) == 0)
|
---|
641 | {
|
---|
642 | break;
|
---|
643 | }
|
---|
644 |
|
---|
645 | current_nid = current_nid->next;
|
---|
646 | }
|
---|
647 |
|
---|
648 | if (current_nid == NULL)
|
---|
649 | {
|
---|
650 | LogError("Did not find a network interface matching MAC ADDRESS");
|
---|
651 | result = MU_FAILURE;
|
---|
652 | }
|
---|
653 | else if (setsockopt(socket, SOL_SOCKET, SO_BINDTODEVICE, current_nid->name, strlen(current_nid->name)) != 0)
|
---|
654 | {
|
---|
655 | LogError("setsockopt failed (%d)", errno);
|
---|
656 | result = MU_FAILURE;
|
---|
657 | }
|
---|
658 | else
|
---|
659 | {
|
---|
660 | result = 0;
|
---|
661 | }
|
---|
662 |
|
---|
663 | destroy_network_interface_descriptions(nid);
|
---|
664 | }
|
---|
665 |
|
---|
666 | return result;
|
---|
667 | }
|
---|
668 | #endif //__APPLE__
|
---|
669 |
|
---|
670 | static void destroy_socket_io_instance(SOCKET_IO_INSTANCE* instance)
|
---|
671 | {
|
---|
672 | if (instance->dns_resolver != NULL)
|
---|
673 | {
|
---|
674 | dns_resolver_destroy(instance->dns_resolver);
|
---|
675 | }
|
---|
676 |
|
---|
677 | free(instance->hostname);
|
---|
678 | free(instance->target_mac_address);
|
---|
679 |
|
---|
680 | if (instance->pending_io_list != NULL)
|
---|
681 | {
|
---|
682 | singlylinkedlist_destroy(instance->pending_io_list);
|
---|
683 | }
|
---|
684 |
|
---|
685 | free(instance);
|
---|
686 | }
|
---|
687 |
|
---|
688 | CONCRETE_IO_HANDLE socketio_lwip_create(void* io_create_parameters)
|
---|
689 | {
|
---|
690 | SOCKETIO_CONFIG* socket_io_config = io_create_parameters;
|
---|
691 | SOCKET_IO_INSTANCE* result;
|
---|
692 |
|
---|
693 | if (socket_io_config == NULL)
|
---|
694 | {
|
---|
695 | LogError("Invalid argument: socket_io_config is NULL");
|
---|
696 | result = NULL;
|
---|
697 | }
|
---|
698 | else
|
---|
699 | {
|
---|
700 | result = malloc(sizeof(SOCKET_IO_INSTANCE));
|
---|
701 | if (result != NULL)
|
---|
702 | {
|
---|
703 | (void)memset(result, 0, sizeof(SOCKET_IO_INSTANCE));
|
---|
704 |
|
---|
705 | result->address_type = ADDRESS_TYPE_IP;
|
---|
706 | result->pending_io_list = singlylinkedlist_create();
|
---|
707 | if (result->pending_io_list == NULL)
|
---|
708 | {
|
---|
709 | LogError("Failure: singlylinkedlist_create unable to create pending list.");
|
---|
710 | destroy_socket_io_instance(result);
|
---|
711 | result = NULL;
|
---|
712 | }
|
---|
713 | else
|
---|
714 | {
|
---|
715 | if (socket_io_config->hostname != NULL)
|
---|
716 | {
|
---|
717 | result->hostname = (char*)malloc(strlen(socket_io_config->hostname) + 1);
|
---|
718 | if (result->hostname != NULL)
|
---|
719 | {
|
---|
720 | (void)strcpy(result->hostname, socket_io_config->hostname);
|
---|
721 | }
|
---|
722 |
|
---|
723 | result->socket = INVALID_SOCKET;
|
---|
724 | }
|
---|
725 | else
|
---|
726 | {
|
---|
727 | result->hostname = NULL;
|
---|
728 | result->socket = *((int*)socket_io_config->accepted_socket);
|
---|
729 | }
|
---|
730 |
|
---|
731 | if ((result->hostname == NULL) && (result->socket == INVALID_SOCKET))
|
---|
732 | {
|
---|
733 | LogError("Failure: hostname == NULL and socket is invalid.");
|
---|
734 | destroy_socket_io_instance(result);
|
---|
735 | result = NULL;
|
---|
736 | }
|
---|
737 | else
|
---|
738 | {
|
---|
739 | result->port = socket_io_config->port;
|
---|
740 | result->on_io_open_complete = NULL;
|
---|
741 | result->dns_resolver = dns_resolver_create(result->hostname, socket_io_config->port, NULL);
|
---|
742 | result->target_mac_address = NULL;
|
---|
743 | result->on_bytes_received = NULL;
|
---|
744 | result->on_io_error = NULL;
|
---|
745 | result->on_bytes_received_context = NULL;
|
---|
746 | result->on_io_error_context = NULL;
|
---|
747 | result->io_state = IO_STATE_CLOSED;
|
---|
748 | }
|
---|
749 | }
|
---|
750 | }
|
---|
751 | else
|
---|
752 | {
|
---|
753 | LogError("Allocation Failure: SOCKET_IO_INSTANCE");
|
---|
754 | }
|
---|
755 | }
|
---|
756 |
|
---|
757 | return result;
|
---|
758 | }
|
---|
759 |
|
---|
760 | void socketio_lwip_destroy(CONCRETE_IO_HANDLE socket_io)
|
---|
761 | {
|
---|
762 | if (socket_io != NULL)
|
---|
763 | {
|
---|
764 | SOCKET_IO_INSTANCE* socket_io_instance = (SOCKET_IO_INSTANCE*)socket_io;
|
---|
765 | /* we cannot do much if the close fails, so just ignore the result */
|
---|
766 | if (socket_io_instance->socket != INVALID_SOCKET)
|
---|
767 | {
|
---|
768 | close(socket_io_instance->socket);
|
---|
769 | }
|
---|
770 |
|
---|
771 | /* clear allpending IOs */
|
---|
772 | LIST_ITEM_HANDLE first_pending_io = singlylinkedlist_get_head_item(socket_io_instance->pending_io_list);
|
---|
773 | while (first_pending_io != NULL)
|
---|
774 | {
|
---|
775 | PENDING_SOCKET_IO* pending_socket_io = (PENDING_SOCKET_IO*)singlylinkedlist_item_get_value(first_pending_io);
|
---|
776 | if (pending_socket_io != NULL)
|
---|
777 | {
|
---|
778 | free(pending_socket_io->bytes);
|
---|
779 | free(pending_socket_io);
|
---|
780 | }
|
---|
781 |
|
---|
782 | (void)singlylinkedlist_remove(socket_io_instance->pending_io_list, first_pending_io);
|
---|
783 | first_pending_io = singlylinkedlist_get_head_item(socket_io_instance->pending_io_list);
|
---|
784 | }
|
---|
785 |
|
---|
786 | destroy_socket_io_instance(socket_io_instance);
|
---|
787 | }
|
---|
788 | }
|
---|
789 |
|
---|
790 | int socketio_lwip_open(CONCRETE_IO_HANDLE socket_io, ON_IO_OPEN_COMPLETE on_io_open_complete, void* on_io_open_complete_context, ON_BYTES_RECEIVED on_bytes_received, void* on_bytes_received_context, ON_IO_ERROR on_io_error, void* on_io_error_context)
|
---|
791 | {
|
---|
792 | int result;
|
---|
793 |
|
---|
794 | SOCKET_IO_INSTANCE* socket_io_instance = (SOCKET_IO_INSTANCE*)socket_io;
|
---|
795 | if (socket_io == NULL)
|
---|
796 | {
|
---|
797 | LogError("Invalid argument: SOCKET_IO_INSTANCE is NULL");
|
---|
798 | result = MU_FAILURE;
|
---|
799 | }
|
---|
800 | else
|
---|
801 | {
|
---|
802 | if (socket_io_instance->io_state != IO_STATE_CLOSED)
|
---|
803 | {
|
---|
804 | LogError("Failure: socket state is not closed.");
|
---|
805 | result = MU_FAILURE;
|
---|
806 | }
|
---|
807 | else if (socket_io_instance->socket != INVALID_SOCKET)
|
---|
808 | {
|
---|
809 | // Opening an accepted socket
|
---|
810 | socket_io_instance->on_bytes_received_context = on_bytes_received_context;
|
---|
811 | socket_io_instance->on_bytes_received = on_bytes_received;
|
---|
812 | socket_io_instance->on_io_error = on_io_error;
|
---|
813 | socket_io_instance->on_io_error_context = on_io_error_context;
|
---|
814 |
|
---|
815 | socket_io_instance->io_state = IO_STATE_OPEN;
|
---|
816 |
|
---|
817 | result = 0;
|
---|
818 | }
|
---|
819 | else
|
---|
820 | {
|
---|
821 | socket_io_instance->socket = socket (socket_io_instance->address_type == ADDRESS_TYPE_IP ? AF_INET : AF_UNIX, SOCK_STREAM, 0);
|
---|
822 | if (socket_io_instance->socket < SOCKET_SUCCESS)
|
---|
823 | {
|
---|
824 | LogError("Failure: socket create failure %d.", socket_io_instance->socket);
|
---|
825 | result = MU_FAILURE;
|
---|
826 | }
|
---|
827 | #ifndef __APPLE__
|
---|
828 | else if (socket_io_instance->target_mac_address != NULL &&
|
---|
829 | set_target_network_interface(socket_io_instance->socket, socket_io_instance->target_mac_address) != 0)
|
---|
830 | {
|
---|
831 | LogError("Failure: failed selecting target network interface (MACADDR=%s).", socket_io_instance->target_mac_address);
|
---|
832 | result = MU_FAILURE;
|
---|
833 | }
|
---|
834 | #endif //__APPLE__
|
---|
835 | else if ((result = lookup_address_and_initiate_socket_connection(socket_io_instance)) != 0)
|
---|
836 | {
|
---|
837 | LogError("lookup_address_and_connect_socket failed");
|
---|
838 | }
|
---|
839 | else if ((result = wait_for_connection(socket_io_instance)) != 0)
|
---|
840 | {
|
---|
841 | LogError("wait_for_connection failed");
|
---|
842 | }
|
---|
843 |
|
---|
844 | if (result == 0)
|
---|
845 | {
|
---|
846 | socket_io_instance->on_bytes_received = on_bytes_received;
|
---|
847 | socket_io_instance->on_bytes_received_context = on_bytes_received_context;
|
---|
848 |
|
---|
849 | socket_io_instance->on_io_error = on_io_error;
|
---|
850 | socket_io_instance->on_io_error_context = on_io_error_context;
|
---|
851 |
|
---|
852 | socket_io_instance->on_io_open_complete = on_io_open_complete;
|
---|
853 | socket_io_instance->on_io_open_complete_context = on_io_open_complete_context;
|
---|
854 | }
|
---|
855 | else
|
---|
856 | {
|
---|
857 | if (socket_io_instance->socket >= SOCKET_SUCCESS)
|
---|
858 | {
|
---|
859 | close(socket_io_instance->socket);
|
---|
860 | }
|
---|
861 | socket_io_instance->socket = INVALID_SOCKET;
|
---|
862 | }
|
---|
863 | }
|
---|
864 | }
|
---|
865 |
|
---|
866 | if (socket_io_instance->io_state != IO_STATE_OPENING)
|
---|
867 | {
|
---|
868 | if (on_io_open_complete != NULL)
|
---|
869 | {
|
---|
870 | on_io_open_complete(on_io_open_complete_context, result == 0 ? IO_OPEN_OK : IO_OPEN_ERROR);
|
---|
871 | }
|
---|
872 | }
|
---|
873 |
|
---|
874 | return result;
|
---|
875 | }
|
---|
876 |
|
---|
877 | int socketio_lwip_close(CONCRETE_IO_HANDLE socket_io, ON_IO_CLOSE_COMPLETE on_io_close_complete, void* callback_context)
|
---|
878 | {
|
---|
879 | int result = 0;
|
---|
880 |
|
---|
881 | if (socket_io == NULL)
|
---|
882 | {
|
---|
883 | result = MU_FAILURE;
|
---|
884 | }
|
---|
885 | else
|
---|
886 | {
|
---|
887 | SOCKET_IO_INSTANCE* socket_io_instance = (SOCKET_IO_INSTANCE*)socket_io;
|
---|
888 | if ((socket_io_instance->io_state != IO_STATE_CLOSED) && (socket_io_instance->io_state != IO_STATE_CLOSING))
|
---|
889 | {
|
---|
890 | // Only close if the socket isn't already in the closed or closing state
|
---|
891 | (void)shutdown(socket_io_instance->socket, SHUT_RDWR);
|
---|
892 | close(socket_io_instance->socket);
|
---|
893 | socket_io_instance->socket = INVALID_SOCKET;
|
---|
894 | socket_io_instance->io_state = IO_STATE_CLOSED;
|
---|
895 | }
|
---|
896 |
|
---|
897 | if (on_io_close_complete != NULL)
|
---|
898 | {
|
---|
899 | on_io_close_complete(callback_context);
|
---|
900 | }
|
---|
901 |
|
---|
902 | result = 0;
|
---|
903 | }
|
---|
904 |
|
---|
905 | return result;
|
---|
906 | }
|
---|
907 |
|
---|
908 | int socketio_lwip_send(CONCRETE_IO_HANDLE socket_io, const void* buffer, size_t size, ON_SEND_COMPLETE on_send_complete, void* callback_context)
|
---|
909 | {
|
---|
910 | int result;
|
---|
911 |
|
---|
912 | if ((socket_io == NULL) ||
|
---|
913 | (buffer == NULL) ||
|
---|
914 | (size == 0))
|
---|
915 | {
|
---|
916 | /* Invalid arguments */
|
---|
917 | LogError("Invalid argument: send given invalid parameter");
|
---|
918 | result = MU_FAILURE;
|
---|
919 | }
|
---|
920 | else
|
---|
921 | {
|
---|
922 | SOCKET_IO_INSTANCE* socket_io_instance = (SOCKET_IO_INSTANCE*)socket_io;
|
---|
923 | if (socket_io_instance->io_state != IO_STATE_OPEN)
|
---|
924 | {
|
---|
925 | LogError("Failure: socket state is not opened.");
|
---|
926 | result = MU_FAILURE;
|
---|
927 | }
|
---|
928 | else
|
---|
929 | {
|
---|
930 | LIST_ITEM_HANDLE first_pending_io = singlylinkedlist_get_head_item(socket_io_instance->pending_io_list);
|
---|
931 | if (first_pending_io != NULL)
|
---|
932 | {
|
---|
933 | if (add_pending_io(socket_io_instance, buffer, size, on_send_complete, callback_context) != 0)
|
---|
934 | {
|
---|
935 | LogError("Failure: add_pending_io failed.");
|
---|
936 | result = MU_FAILURE;
|
---|
937 | }
|
---|
938 | else
|
---|
939 | {
|
---|
940 | result = 0;
|
---|
941 | }
|
---|
942 | }
|
---|
943 | else
|
---|
944 | {
|
---|
945 | signal(SIGPIPE, SIG_IGN);
|
---|
946 |
|
---|
947 | ssize_t send_result = send(socket_io_instance->socket, buffer, size, MSG_NOSIGNAL);
|
---|
948 | if ((size_t)send_result != size)
|
---|
949 | {
|
---|
950 | if (send_result == SOCKET_SEND_FAILURE && errno != EAGAIN)
|
---|
951 | {
|
---|
952 | LogError("Failure: sending socket failed. errno=%d (%s).", errno, strerror(errno));
|
---|
953 | result = MU_FAILURE;
|
---|
954 | }
|
---|
955 | else
|
---|
956 | {
|
---|
957 | /*send says "come back later" with EAGAIN - likely the socket buffer cannot accept more data*/
|
---|
958 | /* queue data */
|
---|
959 | size_t bytes_sent = (send_result < 0 ? 0 : send_result);
|
---|
960 |
|
---|
961 | if (add_pending_io(socket_io_instance, (const unsigned char*)buffer + bytes_sent, size - bytes_sent, on_send_complete, callback_context) != 0)
|
---|
962 | {
|
---|
963 | LogError("Failure: add_pending_io failed.");
|
---|
964 | result = MU_FAILURE;
|
---|
965 | }
|
---|
966 | else
|
---|
967 | {
|
---|
968 | result = 0;
|
---|
969 | }
|
---|
970 | }
|
---|
971 | }
|
---|
972 | else
|
---|
973 | {
|
---|
974 | if (on_send_complete != NULL)
|
---|
975 | {
|
---|
976 | on_send_complete(callback_context, IO_SEND_OK);
|
---|
977 | }
|
---|
978 |
|
---|
979 | result = 0;
|
---|
980 | }
|
---|
981 | }
|
---|
982 | }
|
---|
983 | }
|
---|
984 |
|
---|
985 | return result;
|
---|
986 | }
|
---|
987 |
|
---|
988 | void socketio_lwip_dowork(CONCRETE_IO_HANDLE socket_io)
|
---|
989 | {
|
---|
990 | if (socket_io != NULL)
|
---|
991 | {
|
---|
992 | SOCKET_IO_INSTANCE* socket_io_instance = (SOCKET_IO_INSTANCE*)socket_io;
|
---|
993 | signal(SIGPIPE, SIG_IGN);
|
---|
994 |
|
---|
995 | if (socket_io_instance->io_state == IO_STATE_OPEN)
|
---|
996 | {
|
---|
997 | LIST_ITEM_HANDLE first_pending_io = singlylinkedlist_get_head_item(socket_io_instance->pending_io_list);
|
---|
998 | while (first_pending_io != NULL)
|
---|
999 | {
|
---|
1000 | PENDING_SOCKET_IO* pending_socket_io = (PENDING_SOCKET_IO*)singlylinkedlist_item_get_value(first_pending_io);
|
---|
1001 | if (pending_socket_io == NULL)
|
---|
1002 | {
|
---|
1003 | indicate_error(socket_io_instance);
|
---|
1004 | LogError("Failure: retrieving socket from list");
|
---|
1005 | break;
|
---|
1006 | }
|
---|
1007 |
|
---|
1008 | ssize_t send_result = send(socket_io_instance->socket, pending_socket_io->bytes, pending_socket_io->size, MSG_NOSIGNAL);
|
---|
1009 | if ((send_result < 0) || ((size_t)send_result != pending_socket_io->size))
|
---|
1010 | {
|
---|
1011 | if (send_result == INVALID_SOCKET)
|
---|
1012 | {
|
---|
1013 | if (errno == EAGAIN) /*send says "come back later" with EAGAIN - likely the socket buffer cannot accept more data*/
|
---|
1014 | {
|
---|
1015 | /*do nothing until next dowork */
|
---|
1016 | break;
|
---|
1017 | }
|
---|
1018 | else
|
---|
1019 | {
|
---|
1020 | free(pending_socket_io->bytes);
|
---|
1021 | free(pending_socket_io);
|
---|
1022 | (void)singlylinkedlist_remove(socket_io_instance->pending_io_list, first_pending_io);
|
---|
1023 |
|
---|
1024 | LogError("Failure: sending Socket information. errno=%d (%s).", errno, strerror(errno));
|
---|
1025 | indicate_error(socket_io_instance);
|
---|
1026 | }
|
---|
1027 | }
|
---|
1028 | else
|
---|
1029 | {
|
---|
1030 | /* simply wait until next dowork */
|
---|
1031 | (void)memmove(pending_socket_io->bytes, pending_socket_io->bytes + send_result, pending_socket_io->size - send_result);
|
---|
1032 | pending_socket_io->size -= send_result;
|
---|
1033 | break;
|
---|
1034 | }
|
---|
1035 | }
|
---|
1036 | else
|
---|
1037 | {
|
---|
1038 | if (pending_socket_io->on_send_complete != NULL)
|
---|
1039 | {
|
---|
1040 | pending_socket_io->on_send_complete(pending_socket_io->callback_context, IO_SEND_OK);
|
---|
1041 | }
|
---|
1042 |
|
---|
1043 | free(pending_socket_io->bytes);
|
---|
1044 | free(pending_socket_io);
|
---|
1045 | if (singlylinkedlist_remove(socket_io_instance->pending_io_list, first_pending_io) != 0)
|
---|
1046 | {
|
---|
1047 | indicate_error(socket_io_instance);
|
---|
1048 | LogError("Failure: unable to remove socket from list");
|
---|
1049 | }
|
---|
1050 | }
|
---|
1051 |
|
---|
1052 | first_pending_io = singlylinkedlist_get_head_item(socket_io_instance->pending_io_list);
|
---|
1053 | }
|
---|
1054 |
|
---|
1055 | if (socket_io_instance->io_state == IO_STATE_OPEN)
|
---|
1056 | {
|
---|
1057 | ssize_t received = 0;
|
---|
1058 | do
|
---|
1059 | {
|
---|
1060 | received = recv(socket_io_instance->socket, socket_io_instance->recv_bytes, XIO_RECEIVE_BUFFER_SIZE, MSG_NOSIGNAL);
|
---|
1061 | if (received > 0)
|
---|
1062 | {
|
---|
1063 | if (socket_io_instance->on_bytes_received != NULL)
|
---|
1064 | {
|
---|
1065 | /* Explicitly ignoring here the result of the callback */
|
---|
1066 | (void)socket_io_instance->on_bytes_received(socket_io_instance->on_bytes_received_context, socket_io_instance->recv_bytes, received);
|
---|
1067 | }
|
---|
1068 | }
|
---|
1069 | else if (received == 0)
|
---|
1070 | {
|
---|
1071 | // Do not log error here due to this is probably the socket being closed on the other end
|
---|
1072 | indicate_error(socket_io_instance);
|
---|
1073 | }
|
---|
1074 | else if (received < 0 && errno != EAGAIN)
|
---|
1075 | {
|
---|
1076 | LogError("Socketio_Failure: Receiving data from endpoint: errno=%d.", errno);
|
---|
1077 | indicate_error(socket_io_instance);
|
---|
1078 | }
|
---|
1079 |
|
---|
1080 | } while (received > 0 && socket_io_instance->io_state == IO_STATE_OPEN);
|
---|
1081 | }
|
---|
1082 | }
|
---|
1083 | else
|
---|
1084 | {
|
---|
1085 | if (socket_io_instance->io_state == IO_STATE_OPENING)
|
---|
1086 | {
|
---|
1087 | if(lookup_address(socket_io_instance) != 0)
|
---|
1088 | {
|
---|
1089 | LogError("Socketio_Failure: lookup address failed");
|
---|
1090 | indicate_error(socket_io_instance);
|
---|
1091 | }
|
---|
1092 | else
|
---|
1093 | {
|
---|
1094 | if(socket_io_instance->io_state == IO_STATE_OPEN)
|
---|
1095 | {
|
---|
1096 | initiate_socket_connection(socket_io_instance);
|
---|
1097 | }
|
---|
1098 | }
|
---|
1099 |
|
---|
1100 | }
|
---|
1101 | }
|
---|
1102 | }
|
---|
1103 | }
|
---|
1104 |
|
---|
1105 | // Edison is missing this from netinet/tcp.h, but this code still works if we manually define it.
|
---|
1106 | #ifndef SOL_TCP
|
---|
1107 | #define SOL_TCP 6
|
---|
1108 | #endif
|
---|
1109 |
|
---|
1110 | #ifndef __APPLE__
|
---|
1111 | static void strtoup(char* str)
|
---|
1112 | {
|
---|
1113 | if (str != NULL)
|
---|
1114 | {
|
---|
1115 | while (*str != '\0')
|
---|
1116 | {
|
---|
1117 | if (isalpha((int)*str) && islower((int)*str))
|
---|
1118 | {
|
---|
1119 | *str = (char)toupper((int)*str);
|
---|
1120 | }
|
---|
1121 | str++;
|
---|
1122 | }
|
---|
1123 | }
|
---|
1124 | }
|
---|
1125 | #endif // __APPLE__
|
---|
1126 |
|
---|
1127 | static int socketio_lwip_setaddresstype_option(SOCKET_IO_INSTANCE* socket_io_instance, const char* addressType)
|
---|
1128 | {
|
---|
1129 | int result;
|
---|
1130 |
|
---|
1131 | if (socket_io_instance->io_state != IO_STATE_CLOSED)
|
---|
1132 | {
|
---|
1133 | LogError("Socket's type can only be changed when in state 'IO_STATE_CLOSED'. Current state=%d", socket_io_instance->io_state);
|
---|
1134 | result = MU_FAILURE;
|
---|
1135 | }
|
---|
1136 | else if (strcmp(addressType, OPTION_ADDRESS_TYPE_DOMAIN_SOCKET) == 0)
|
---|
1137 | {
|
---|
1138 | socket_io_instance->address_type = ADDRESS_TYPE_DOMAIN_SOCKET;
|
---|
1139 | result = 0;
|
---|
1140 | }
|
---|
1141 | else if (strcmp(addressType, OPTION_ADDRESS_TYPE_IP_SOCKET) == 0)
|
---|
1142 | {
|
---|
1143 | socket_io_instance->address_type = ADDRESS_TYPE_IP;
|
---|
1144 | result = 0;
|
---|
1145 | }
|
---|
1146 | else
|
---|
1147 | {
|
---|
1148 | LogError("Address type %s is not supported", addressType);
|
---|
1149 | result = MU_FAILURE;
|
---|
1150 | }
|
---|
1151 |
|
---|
1152 | return result;
|
---|
1153 | }
|
---|
1154 |
|
---|
1155 | int socketio_lwip_setoption(CONCRETE_IO_HANDLE socket_io, const char* optionName, const void* value)
|
---|
1156 | {
|
---|
1157 | int result;
|
---|
1158 |
|
---|
1159 | if (socket_io == NULL ||
|
---|
1160 | optionName == NULL ||
|
---|
1161 | value == NULL)
|
---|
1162 | {
|
---|
1163 | result = MU_FAILURE;
|
---|
1164 | }
|
---|
1165 | else
|
---|
1166 | {
|
---|
1167 | SOCKET_IO_INSTANCE* socket_io_instance = (SOCKET_IO_INSTANCE*)socket_io;
|
---|
1168 |
|
---|
1169 | if (strcmp(optionName, "tcp_keepalive") == 0)
|
---|
1170 | {
|
---|
1171 | result = setsockopt(socket_io_instance->socket, SOL_SOCKET, SO_KEEPALIVE, value, sizeof(int));
|
---|
1172 | if (result == -1) result = errno;
|
---|
1173 | }
|
---|
1174 | else if (strcmp(optionName, "tcp_keepalive_time") == 0)
|
---|
1175 | {
|
---|
1176 | #ifdef __APPLE__
|
---|
1177 | result = setsockopt(socket_io_instance->socket, IPPROTO_TCP, TCP_KEEPALIVE, value, sizeof(int));
|
---|
1178 | #else
|
---|
1179 | result = setsockopt(socket_io_instance->socket, SOL_TCP, TCP_KEEPIDLE, value, sizeof(int));
|
---|
1180 | #endif
|
---|
1181 | if (result == -1) result = errno;
|
---|
1182 | }
|
---|
1183 | else if (strcmp(optionName, "tcp_keepalive_interval") == 0)
|
---|
1184 | {
|
---|
1185 | result = setsockopt(socket_io_instance->socket, SOL_TCP, TCP_KEEPINTVL, value, sizeof(int));
|
---|
1186 | if (result == -1) result = errno;
|
---|
1187 | }
|
---|
1188 | else if (strcmp(optionName, OPTION_NET_INT_MAC_ADDRESS) == 0)
|
---|
1189 | {
|
---|
1190 | #ifdef __APPLE__
|
---|
1191 | LogError("option not supported.");
|
---|
1192 | result = MU_FAILURE;
|
---|
1193 | #else
|
---|
1194 | if (strlen(value) == 0)
|
---|
1195 | {
|
---|
1196 | LogError("option value must be a valid mac address");
|
---|
1197 | result = MU_FAILURE;
|
---|
1198 | }
|
---|
1199 | else if ((socket_io_instance->target_mac_address = (char*)malloc(sizeof(char) * (strlen(value) + 1))) == NULL)
|
---|
1200 | {
|
---|
1201 | LogError("failed setting net_interface_mac_address option (malloc failed)");
|
---|
1202 | result = MU_FAILURE;
|
---|
1203 | }
|
---|
1204 | else if (strcpy(socket_io_instance->target_mac_address, value) == NULL)
|
---|
1205 | {
|
---|
1206 | LogError("failed setting net_interface_mac_address option (strcpy failed)");
|
---|
1207 | free(socket_io_instance->target_mac_address);
|
---|
1208 | socket_io_instance->target_mac_address = NULL;
|
---|
1209 | result = MU_FAILURE;
|
---|
1210 | }
|
---|
1211 | else
|
---|
1212 | {
|
---|
1213 | strtoup(socket_io_instance->target_mac_address);
|
---|
1214 | result = 0;
|
---|
1215 | }
|
---|
1216 | #endif
|
---|
1217 | }
|
---|
1218 | else if (strcmp(optionName, OPTION_ADDRESS_TYPE) == 0)
|
---|
1219 | {
|
---|
1220 | result = socketio_lwip_setaddresstype_option(socket_io_instance, (const char*)value);
|
---|
1221 | }
|
---|
1222 | else
|
---|
1223 | {
|
---|
1224 | result = MU_FAILURE;
|
---|
1225 | }
|
---|
1226 | }
|
---|
1227 |
|
---|
1228 | return result;
|
---|
1229 | }
|
---|
1230 |
|
---|
1231 | const IO_INTERFACE_DESCRIPTION* socketio_lwip_get_interface_description(void)
|
---|
1232 | {
|
---|
1233 | return &socket_io_interface_description;
|
---|
1234 | }
|
---|
1235 |
|
---|