[134] | 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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