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