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/**
@file protocol.h
@brief ENet protocol
*/
#ifndef __ENET_PROTOCOL_H__
#define __ENET_PROTOCOL_H__
#include "enet/types.h"
enum
{
ENET_PROTOCOL_MINIMUM_MTU = 576,
ENET_PROTOCOL_MAXIMUM_MTU = 4096,
ENET_PROTOCOL_MAXIMUM_PACKET_COMMANDS = 32,
ENET_PROTOCOL_MINIMUM_WINDOW_SIZE = 4096,
ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE = 32768,
ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT = 1,
ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT = 255,
ENET_PROTOCOL_MAXIMUM_PEER_ID = 0x7FFF
};
typedef enum
{
ENET_PROTOCOL_COMMAND_NONE = 0,
ENET_PROTOCOL_COMMAND_ACKNOWLEDGE = 1,
ENET_PROTOCOL_COMMAND_CONNECT = 2,
ENET_PROTOCOL_COMMAND_VERIFY_CONNECT = 3,
ENET_PROTOCOL_COMMAND_DISCONNECT = 4,
ENET_PROTOCOL_COMMAND_PING = 5,
ENET_PROTOCOL_COMMAND_SEND_RELIABLE = 6,
ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE = 7,
ENET_PROTOCOL_COMMAND_SEND_FRAGMENT = 8,
ENET_PROTOCOL_COMMAND_SEND_UNSEQUENCED = 9,
ENET_PROTOCOL_COMMAND_BANDWIDTH_LIMIT = 10,
ENET_PROTOCOL_COMMAND_THROTTLE_CONFIGURE = 11,
ENET_PROTOCOL_COMMAND_COUNT = 12,
ENET_PROTOCOL_COMMAND_MASK = 0x0F
} ENetProtocolCommand;
typedef enum
{
ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE = (1 << 7),
ENET_PROTOCOL_COMMAND_FLAG_UNSEQUENCED = (1 << 6),
ENET_PROTOCOL_HEADER_FLAG_SENT_TIME = (1 << 15),
ENET_PROTOCOL_HEADER_FLAG_MASK = 0x8000
} ENetProtocolFlag;
typedef struct
{
enet_uint32 checksum;
enet_uint16 peerID;
enet_uint16 sentTime;
} ENetProtocolHeader;
typedef struct
{
enet_uint8 command;
enet_uint8 channelID;
enet_uint16 reliableSequenceNumber;
} ENetProtocolCommandHeader;
typedef struct
{
ENetProtocolCommandHeader header;
enet_uint16 receivedReliableSequenceNumber;
enet_uint16 receivedSentTime;
} ENetProtocolAcknowledge;
typedef struct
{
ENetProtocolCommandHeader header;
enet_uint16 outgoingPeerID;
enet_uint16 mtu;
enet_uint32 windowSize;
enet_uint32 channelCount;
enet_uint32 incomingBandwidth;
enet_uint32 outgoingBandwidth;
enet_uint32 packetThrottleInterval;
enet_uint32 packetThrottleAcceleration;
enet_uint32 packetThrottleDeceleration;
enet_uint32 sessionID;
} ENetProtocolConnect;
typedef struct
{
ENetProtocolCommandHeader header;
enet_uint16 outgoingPeerID;
enet_uint16 mtu;
enet_uint32 windowSize;
enet_uint32 channelCount;
enet_uint32 incomingBandwidth;
enet_uint32 outgoingBandwidth;
enet_uint32 packetThrottleInterval;
enet_uint32 packetThrottleAcceleration;
enet_uint32 packetThrottleDeceleration;
} ENetProtocolVerifyConnect;
typedef struct
{
ENetProtocolCommandHeader header;
enet_uint32 incomingBandwidth;
enet_uint32 outgoingBandwidth;
} ENetProtocolBandwidthLimit;
typedef struct
{
ENetProtocolCommandHeader header;
enet_uint32 packetThrottleInterval;
enet_uint32 packetThrottleAcceleration;
enet_uint32 packetThrottleDeceleration;
} ENetProtocolThrottleConfigure;
typedef struct
{
ENetProtocolCommandHeader header;
enet_uint32 data;
} ENetProtocolDisconnect;
typedef struct
{
ENetProtocolCommandHeader header;
} ENetProtocolPing;
typedef struct
{
ENetProtocolCommandHeader header;
enet_uint16 dataLength;
} ENetProtocolSendReliable;
typedef struct
{
ENetProtocolCommandHeader header;
enet_uint16 unreliableSequenceNumber;
enet_uint16 dataLength;
} ENetProtocolSendUnreliable;
typedef struct
{
ENetProtocolCommandHeader header;
enet_uint16 unsequencedGroup;
enet_uint16 dataLength;
} ENetProtocolSendUnsequenced;
typedef struct
{
ENetProtocolCommandHeader header;
enet_uint16 startSequenceNumber;
enet_uint16 dataLength;
enet_uint32 fragmentCount;
enet_uint32 fragmentNumber;
enet_uint32 totalLength;
enet_uint32 fragmentOffset;
} ENetProtocolSendFragment;
typedef union
{
ENetProtocolCommandHeader header;
ENetProtocolAcknowledge acknowledge;
ENetProtocolConnect connect;
ENetProtocolVerifyConnect verifyConnect;
ENetProtocolDisconnect disconnect;
ENetProtocolPing ping;
ENetProtocolSendReliable sendReliable;
ENetProtocolSendUnreliable sendUnreliable;
ENetProtocolSendUnsequenced sendUnsequenced;
ENetProtocolSendFragment sendFragment;
ENetProtocolBandwidthLimit bandwidthLimit;
ENetProtocolThrottleConfigure throttleConfigure;
} ENetProtocol;
#endif /* __ENET_PROTOCOL_H__ */
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