source: Daodan/MSVC/Mariusnet_Defs.h@ 588

//to client
enum
{
pt_RoomList = 0x0000,
pt_PlayerList = 0x0001,
pt_GameList = 0x0002,
pt_UserLoggedIn = 0x7,//0x0003,
pt_EncryptionKey = 0x0006,
pt_LoginInfo = 0x3,//0x0007,
pt_PlayerInfo = 0x0008,
pt_PlayerId = 0x0009,
pt_BlueBarMsg = 0x000A,
pt_PasswordAck = 0x000C,
pt_FindResponse = 0x000E,
pt_BuddyList = 0x000F, // the actual buddy list - i.e. names and such
pt_OrderList = 0x0010,
pt_PlayerInfoResponse = 0x0011,
pt_UpdatePlayerStats = 0x0012,
pt_UpdateBuddyList = 0x0013, // buddy status - i.e. online/offline
pt_UpdateOrderList = 0x0014,
};

//from client
enum
{
pt_PlayerLogin = 0x0064,
pt_ChatRoomLogin = 0x0065,
pt_RoomPlayerInfo = 0x0067,
pt_GameInfo = 0x0068,
pt_RemoveGame = 0x0069,
pt_SetPlayerState = 0x006B,
pt_Password = 0x006D,
pt_RequestRefresh = 0x006E,
pt_GamePlayerList = 0x006F, // game start player list
pt_PlayerScores = 0x0070, // game over player scores
pt_ResetScoring = 0x0071, // reset metaserver game scoring
pt_StartGame = 0x0072,
pt_Localization = 0x0073,
pt_GameSearchQuery = 0x0074,
pt_FindPlayer = 0x0075,
pt_BuddyListQuery = 0x0076, // request a buddy list update
pt_OrderListQuery = 0x0077,
pt_UpdateBuddy = 0x0078, // add/remove buddy
pt_PlayerInfoQuery = 0x0079,
pt_SetPlayerStats = 0x007A, // change player stats (city/state/profile)
pt_ChatMessage = 0x00C8,
pt_WhisperMessage = 0x00C9,
pt_KeepAlive = 0x00CA,
pt_SessionKey = 0x00CB,
};

enum
{
ctMyth1 = 0,
ctMyth2 = 1,
// ctMyth3 = 2;
ctMarathon = 3,
ctMyth1Unified = 4,
ctMyth2Unified = 5,
ctMyth3Unified = 6,
};


typedef struct
{
        short PacketSignature;// = 0xDEAD;
    short PacketId;
    unsigned int PacketSize;
} marius_header;

typedef struct
{
        short Red;
    short Green;
    short Blue;
    short Flags;
} m_colour;

typedef struct
{
        char Icon;
        char pad;
        short Flags; // 0=active, 1=inactive, in a game, grayed out, can't see chat
        m_colour Colors[2];
        short orderIndex;
        short clientVersion;
        char stupid_14byte_pad[14];
        char Name[112];     // 2 #0 terminated fields - Name, Team Name
} m_player_info;

typedef struct
{
        short Platform; //Windows - 1
        short MetaVersion; //0
        char pad[3]; 
    char UpdateAppearance;                      // save player settings on server,     change to bits, bit 0=update, bit 1=demo
    int PlayerId; //0
    short EncryptionType;  //0 - kCRYPT_PLAINTEXT, screw encryption for now
    short PlayerInfoSize;  //40 + strlen(playername) + strlen(plaerteam(
    char AppName[32];           //MARATHON...later ONI ;)
    char BuildDate[32];         //_DATE_
    char BuildTime[32];         //_TIME_
    char LoginId[32];           //username
    m_player_info PlayerInfo;       
} m_player_login;

typedef struct
{
        short EncryptionType;
        unsigned char salt[16];
} m_salt;

typedef struct
{
        int one;
        int two;
        int three;
        int zero;
} m_localization;

typedef struct
{
        unsigned char passHash[16];
} m_password;

typedef struct
{
        int userID;
        short order;
        short unused;
        char Token[32];
                
} m_login_success;

typedef struct
{
        int code;
        char DenialMessage[];
} m_login_denied;

typedef struct
{
        short RoomIndex;
        short PlayerCount;
        int IPAddress;
        short Port;
        short GameCount;
        int pad[3];
} m_room;

typedef struct
{
        m_room Rooms[64];
} m_roomlist;

typedef struct
{
        char RoomKey[32];
        char Name[32];
} m_chatroom_join;

typedef struct
{
        char Message[512];
} m_motd;

typedef struct
{
        m_colour        PrimaryColor;
        m_colour        SecondaryColor;
        int    SenderId;
    int         TargetId;
    char Message[256];
} m_message;

typedef struct
{
        short unknown16;
        short type;
        int options;
        int timelimit;
        int checksum;
        short difficulty;
        short maxplayers;
        short teamrandomseed;
        short maxteams; //-1
        int planningtime;
        int unusedint;
        int unusedint_2;
        short unknown16_2;
        short pluginflag;
        char pluginlist[512];
        int clientversion;//0xc136e436
        int unknownint;
        short status;
        short numplayers;
        char action;
        char pad[3];
        char Buffer[128];
} m_gamedescription;

typedef struct
{
        short port;
        short zero;
        m_gamedescription g;
} m_announcegame;

typedef struct
{
        unsigned int    gameID;
        unsigned int    ipAddress;
        unsigned short  port;
        unsigned char   verb;
        unsigned char   gameEnable;
        unsigned int    timeRemaining;
        unsigned int    hostPlayerID;
        unsigned short  len;
        int unused1;
        int unused2;
        short pad;
        m_gamedescription g;
} m_gameinfo;

typedef struct
{
        m_gameinfo Games[];
} m_gamelist;
typedef struct
{
        marius_header header;
        union
        {
                m_player_login login;
                m_password password;
                m_localization localization;
                m_salt salt;
                m_login_success login_success;
                m_login_denied login_denied;
                m_roomlist roomlist;
                m_chatroom_join chatroom_join;
                m_player_info player_info;
                m_motd motd;
                m_message message;
                m_announcegame newgame;
                m_gamelist gamelist;
        };
} marius_packet;