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71 lines
2.5 KiB
71 lines
2.5 KiB
//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//=============================================================================//
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// protocol.h -- communications protocols
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#ifndef PROTOCOL_H
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#define PROTOCOL_H
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#ifdef _WIN32
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#pragma once
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#endif
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#define INSTANCE_BASELINE_TABLENAME "instancebaseline"
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#define LIGHT_STYLES_TABLENAME "lightstyles"
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#define USER_INFO_TABLENAME "userinfo"
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#define SERVER_STARTUP_DATA_TABLENAME "server_query_info" // the name is a remnant...
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#define DYNAMIC_MODEL_TABLENAME "dynamicmodel"
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//#define CURRENT_PROTOCOL 1
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#define DELTA_OFFSET_BITS 5
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#define DELTA_OFFSET_MAX ( ( 1 << DELTA_OFFSET_BITS ) - 1 )
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#define DELTASIZE_BITS 20 // must be: 2^DELTASIZE_BITS > (NET_MAX_PAYLOAD * 8)
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// Largest # of commands to send in a packet
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#define NUM_NEW_COMMAND_BITS 4
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#define MAX_NEW_COMMANDS ((1 << NUM_NEW_COMMAND_BITS)-1)
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// Max number of history commands to send ( 2 by default ) in case of dropped packets
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#define NUM_BACKUP_COMMAND_BITS 3
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#define MAX_BACKUP_COMMANDS ((1 << NUM_BACKUP_COMMAND_BITS)-1)
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#define PROTOCOL_AUTHCERTIFICATE 0x01 // Connection from client is using a WON authenticated certificate
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#define PROTOCOL_HASHEDCDKEY 0x02 // Connection from client is using hashed CD key because WON comm. channel was unreachable
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#define PROTOCOL_STEAM 0x03 // Steam certificates
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#define PROTOCOL_LASTVALID 0x03 // Last valid protocol
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#define CONNECTIONLESS_HEADER 0xFFFFFFFF // all OOB packet start with this sequence
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#define STEAM_KEYSIZE 2048 // max size needed to contain a steam authentication key (both server and client)
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// each channel packet has 1 byte of FLAG bits
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#define PACKET_FLAG_RELIABLE (1<<0) // packet contains subchannel stream data
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#define PACKET_FLAG_COMPRESSED (1<<1) // packet is compressed
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#define PACKET_FLAG_ENCRYPTED (1<<2) // packet is encrypted
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#define PACKET_FLAG_SPLIT (1<<3) // packet is split
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#define PACKET_FLAG_CHOKED (1<<4) // packet was choked by sender
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// NOTE: Bits 5, 6, and 7 are used to specify the # of padding bits at the end of the packet!!!
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#define ENCODE_PAD_BITS( x ) ( ( x << 5 ) & 0xff )
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#define DECODE_PAD_BITS( x ) ( ( x >> 5 ) & 0xff )
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//
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// client to server
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//
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#define RES_FATALIFMISSING (1<<0) // Disconnect if we can't get this file.
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#define RES_PRELOAD (1<<1) // Load on client rather than just reserving name
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// Some day we may want to integrate Zoid's CL 1295766 - Rewrite of Source networking to be protobuf based.
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#endif // PROTOCOL_H
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