1 | /** |
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2 | @file protocol.h |
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3 | @brief ENet protocol |
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4 | */ |
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5 | #ifndef __ENET_PROTOCOL_H__ |
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6 | #define __ENET_PROTOCOL_H__ |
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7 | |
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8 | #include "enet/types.h" |
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9 | |
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10 | enum |
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11 | { |
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12 | ENET_PROTOCOL_MINIMUM_MTU = 576, |
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13 | ENET_PROTOCOL_MAXIMUM_MTU = 4096, |
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14 | ENET_PROTOCOL_MAXIMUM_PACKET_COMMANDS = 32, |
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15 | ENET_PROTOCOL_MINIMUM_WINDOW_SIZE = 4096, |
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16 | ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE = 32768, |
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17 | ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT = 1, |
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18 | ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT = 255, |
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19 | ENET_PROTOCOL_MAXIMUM_PEER_ID = 0x7FFF |
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20 | }; |
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21 | |
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22 | typedef enum |
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23 | { |
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24 | ENET_PROTOCOL_COMMAND_NONE = 0, |
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25 | ENET_PROTOCOL_COMMAND_ACKNOWLEDGE = 1, |
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26 | ENET_PROTOCOL_COMMAND_CONNECT = 2, |
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27 | ENET_PROTOCOL_COMMAND_VERIFY_CONNECT = 3, |
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28 | ENET_PROTOCOL_COMMAND_DISCONNECT = 4, |
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29 | ENET_PROTOCOL_COMMAND_PING = 5, |
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30 | ENET_PROTOCOL_COMMAND_SEND_RELIABLE = 6, |
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31 | ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE = 7, |
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32 | ENET_PROTOCOL_COMMAND_SEND_FRAGMENT = 8, |
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33 | ENET_PROTOCOL_COMMAND_SEND_UNSEQUENCED = 9, |
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34 | ENET_PROTOCOL_COMMAND_BANDWIDTH_LIMIT = 10, |
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35 | ENET_PROTOCOL_COMMAND_THROTTLE_CONFIGURE = 11, |
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36 | ENET_PROTOCOL_COMMAND_COUNT = 12, |
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37 | |
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38 | ENET_PROTOCOL_COMMAND_MASK = 0x0F |
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39 | } ENetProtocolCommand; |
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40 | |
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41 | typedef enum |
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42 | { |
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43 | ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE = (1 << 7), |
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44 | ENET_PROTOCOL_COMMAND_FLAG_UNSEQUENCED = (1 << 6), |
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45 | |
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46 | ENET_PROTOCOL_HEADER_FLAG_SENT_TIME = (1 << 15), |
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47 | ENET_PROTOCOL_HEADER_FLAG_MASK = 0x8000 |
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48 | } ENetProtocolFlag; |
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49 | |
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50 | typedef struct |
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51 | { |
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52 | enet_uint32 checksum; |
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53 | enet_uint16 peerID; |
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54 | enet_uint16 sentTime; |
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55 | } ENetProtocolHeader; |
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56 | |
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57 | typedef struct |
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58 | { |
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59 | enet_uint8 command; |
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60 | enet_uint8 channelID; |
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61 | enet_uint16 reliableSequenceNumber; |
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62 | } ENetProtocolCommandHeader; |
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63 | |
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64 | typedef struct |
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65 | { |
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66 | ENetProtocolCommandHeader header; |
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67 | enet_uint16 receivedReliableSequenceNumber; |
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68 | enet_uint16 receivedSentTime; |
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69 | } ENetProtocolAcknowledge; |
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70 | |
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71 | typedef struct |
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72 | { |
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73 | ENetProtocolCommandHeader header; |
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74 | enet_uint16 outgoingPeerID; |
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75 | enet_uint16 mtu; |
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76 | enet_uint32 windowSize; |
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77 | enet_uint32 channelCount; |
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78 | enet_uint32 incomingBandwidth; |
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79 | enet_uint32 outgoingBandwidth; |
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80 | enet_uint32 packetThrottleInterval; |
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81 | enet_uint32 packetThrottleAcceleration; |
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82 | enet_uint32 packetThrottleDeceleration; |
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83 | enet_uint32 sessionID; |
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84 | } ENetProtocolConnect; |
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85 | |
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86 | typedef struct |
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87 | { |
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88 | ENetProtocolCommandHeader header; |
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89 | enet_uint16 outgoingPeerID; |
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90 | enet_uint16 mtu; |
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91 | enet_uint32 windowSize; |
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92 | enet_uint32 channelCount; |
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93 | enet_uint32 incomingBandwidth; |
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94 | enet_uint32 outgoingBandwidth; |
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95 | enet_uint32 packetThrottleInterval; |
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96 | enet_uint32 packetThrottleAcceleration; |
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97 | enet_uint32 packetThrottleDeceleration; |
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98 | } ENetProtocolVerifyConnect; |
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99 | |
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100 | typedef struct |
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101 | { |
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102 | ENetProtocolCommandHeader header; |
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103 | enet_uint32 incomingBandwidth; |
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104 | enet_uint32 outgoingBandwidth; |
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105 | } ENetProtocolBandwidthLimit; |
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106 | |
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107 | typedef struct |
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108 | { |
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109 | ENetProtocolCommandHeader header; |
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110 | enet_uint32 packetThrottleInterval; |
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111 | enet_uint32 packetThrottleAcceleration; |
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112 | enet_uint32 packetThrottleDeceleration; |
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113 | } ENetProtocolThrottleConfigure; |
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114 | |
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115 | typedef struct |
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116 | { |
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117 | ENetProtocolCommandHeader header; |
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118 | enet_uint32 data; |
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119 | } ENetProtocolDisconnect; |
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120 | |
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121 | typedef struct |
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122 | { |
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123 | ENetProtocolCommandHeader header; |
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124 | } ENetProtocolPing; |
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125 | |
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126 | typedef struct |
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127 | { |
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128 | ENetProtocolCommandHeader header; |
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129 | enet_uint16 dataLength; |
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130 | } ENetProtocolSendReliable; |
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131 | |
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132 | typedef struct |
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133 | { |
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134 | ENetProtocolCommandHeader header; |
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135 | enet_uint16 unreliableSequenceNumber; |
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136 | enet_uint16 dataLength; |
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137 | } ENetProtocolSendUnreliable; |
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138 | |
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139 | typedef struct |
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140 | { |
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141 | ENetProtocolCommandHeader header; |
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142 | enet_uint16 unsequencedGroup; |
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143 | enet_uint16 dataLength; |
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144 | } ENetProtocolSendUnsequenced; |
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145 | |
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146 | typedef struct |
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147 | { |
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148 | ENetProtocolCommandHeader header; |
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149 | enet_uint16 startSequenceNumber; |
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150 | enet_uint16 dataLength; |
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151 | enet_uint32 fragmentCount; |
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152 | enet_uint32 fragmentNumber; |
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153 | enet_uint32 totalLength; |
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154 | enet_uint32 fragmentOffset; |
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155 | } ENetProtocolSendFragment; |
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156 | |
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157 | typedef union |
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158 | { |
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159 | ENetProtocolCommandHeader header; |
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160 | ENetProtocolAcknowledge acknowledge; |
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161 | ENetProtocolConnect connect; |
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162 | ENetProtocolVerifyConnect verifyConnect; |
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163 | ENetProtocolDisconnect disconnect; |
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164 | ENetProtocolPing ping; |
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165 | ENetProtocolSendReliable sendReliable; |
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166 | ENetProtocolSendUnreliable sendUnreliable; |
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167 | ENetProtocolSendUnsequenced sendUnsequenced; |
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168 | ENetProtocolSendFragment sendFragment; |
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169 | ENetProtocolBandwidthLimit bandwidthLimit; |
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170 | ENetProtocolThrottleConfigure throttleConfigure; |
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171 | } ENetProtocol; |
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172 | |
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173 | #endif /* __ENET_PROTOCOL_H__ */ |
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174 | |
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