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341 lines
15 KiB
341 lines
15 KiB
/* arap.h, /atalk-ii/ins, Garth Conboy, 04/02/92 */
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/* Copyright (c) 1992 by Pacer Software Inc., La Jolla, CA */
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/* GC - Initial coding.
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GC - (08/29/92): A number of fixes from Eric Smith at Telebit.
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*** Make the PVCS source control system happy:
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$Header$
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$Log$
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***
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Decalrations for AppleTalk remote access (ARAP).
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*/
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#define IncludeVirtualClient 1 /* Complete code & data for virtual
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client debug environment. */
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/* Valid dial-in user list. */
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typedef struct ul { struct ul far *next; /* Next user info. */
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char far *userName; /* The user name. */
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char password[8]; /* The password; padded with
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nulls. */
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Boolean callBack; /* Should this user be called
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back before connection
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establishment? */
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char far *callBackModemString;
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/* If call back is true, this is
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string passed to the modem to
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do the call; includes phone
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number, one would hope. */
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long unsigned maxConnectTime;
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/* -1 for infinite. How many
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seconds can this user be
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connected for; if zero, the
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default valud is used. */
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} far *RemoteAccessUserList;
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/* The configuration info for a remote access port; we simply move this
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pointer from portInfo to portDescriptors; we do not make a copy! */
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typedef struct rac { char far *serverName; /* Used in the StartInfoFromServer
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packet. */
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Boolean guestLoginsOkay;
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/* Do we allow no-password
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logins on this port? */
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long unsigned defaultMaxConnectTime;
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/* -1 for infinite. If the per-
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user value for this timer is
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zero, we'll use this value; if
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this value is zero, we'll use
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-1. */
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long baudRate; /* Baud rate of the port in KBPS
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(e.g. 1200, 9600, etc.). This
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value can be dynamically changed
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BEFORE a call to the
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"incomingCall" routine is
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made. */
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RemoteAccessUserList userList;
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/* User/password/callback info. */
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} far *RemoteAccessConfigurationInfo;
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/* The various states a remote access port can be in. */
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typedef enum { ArapNotInitialized, /* Don't have our node yet */
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ArapWaiting, /* Waiting for connection */
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ArapLinkArbitrationAcceptor, /* Just got a call */
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ArapLinkArbitrationResult, /* Got request; sending result */
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ArapServerVersion, /* Sending server version */
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ArapAuthorizationChallenge, /* Sending "auth challenge" */
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ArapAuthorizationRepsonse, /* Sending "auth response" */
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ArapAuthRespWaitingForAck, /* Waiting for ack from
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ArapAuthorizationResponse */
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ArapWaitingForCallback, /* Waiting for callback to
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complete */
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ArapLinkArbitrationOriginator,
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/* Just got callback */
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ArapStartingUp, /* Sending "startInfoFromServer" */
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ArapZoneList, /* Sending "zoneListInfo" */
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ArapActive /* Fully connected */
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} RemoteAccessState;
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/* Master info block for controling remote access operation on a port. This
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guy is pointed to by the portDescriptors. */
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typedef struct { int refCount; /* Who's got ahold of us? */
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int port; /* The Arap port for which we are
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the remote access info. */
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RemoteAccessConfigurationInfo configuration;
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/* From portInfo. */
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RemoteAccessState state; /* The state of activity on the
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remote acess port. */
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unsigned char nextOutgoingSequenceNumber;
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/* Next sequence number to send. */
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unsigned char nextIncomingSequenceNumber;
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/* Expected next incoming sequence
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number. */
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#if IncludeVirtualClient
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unsigned char virtualClientSequenceNumber;
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char clientRandomEightBytes[8];
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#endif
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long unsigned retransmitSeconds;
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/* Calculated from "baudRate" when
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handling an incoming call. How
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frequently should we send the
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below buffer while waiting for
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an ack. */
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BufferDescriptor retransmitChain;
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/* Data of current pending internal
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message. This is Empty when
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we've gotten as ack and there
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is no packet to resend. */
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int retransmitLength; /* Length of buffer chain. */
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long unsigned lastRetransmitTime;
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/* The last time that we sent the
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above buffer. */
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long unsigned maxConnectTime;
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/* Maximum length of connection
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allowed (seconds), for the
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"current" user. -1 for
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infinite. */
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long unsigned connectTime;
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/* How long have we been connected
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so far for the "current"
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active session? */
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long unsigned lastContactTime;
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/* The last time we heard anything
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from the client. */
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short unsigned lastThisNet;
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/* The previous value for "this
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net" that we sent in a tickle
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packet. */
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struct activeNode *proxyNode;
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/* The node, on the default port,
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that is the proxy node for this
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user. */
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int proxyPort; /* The default port, no doubt. */
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char randomEightBytes[8]; /* Two long random numbers used for
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two way DES authorization. */
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RemoteAccessUserList currentUser;
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/* When processing authentication,
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what user? */
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short result; /* When building SRP packets, what
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result code? */
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ZoneList zoneList; /* Zone list that we're currenting
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sending for startup. */
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ZoneList currentZone; /* Where we are on the above list
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list for multi-packet sends. */
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} far *RemoteAccessInfo;
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#define ArapInfiniteConnectTime ((long unsigned)-1)
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/* For processing the sending of the zone list to the client. How much
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space do we allocate for getting the zone list? How many zones will
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we send in a single ZoneListInfo packet (these will fit without overflow
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with maximum sized zones). */
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#define ArapZoneListBufferSize 2048
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#define ArapZonesPerPacket 16
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/* We tickle every 20 seconds, and teardown after 60. If we're waiting for
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a callback, we'll be a little more patient. We use a tickle timer at the
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fastest rate (>= 4800 baud); one timer handles all ports; each according
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to its baud rate. */
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#define RemoteAccessTickleSeconds 20
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#define RemoteAccessTeardownSeconds 60
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#define RemoteAccessCallBackSeconds 90
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#define ArapRetransmitTimerSeconds 2
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/* First we use the server name is RemoteAccessConfigurationInfo, if it's
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missing, we use the following: */
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#if defined (NETBLAZER)
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#define DefaultRemoteAccessServerName "NetBlazer ARA Server"
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#define RemoteAccessServerNameTail " (Telebit NetBlazer)"
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#else
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#define DefaultRemoteAccessServerName "Pacer ARAP Server"
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#endif
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#define ArapLargestPacketSize 604
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/* Modem Link Tool packet offsets for the Simple Reliable Protocol. */
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#define ModemLinkToolLengthOffset 0
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#define ModemLinkToolDataOffset 2
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#define ArapFlagsOffset 2
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#define ArapSequenceNumberOffset 3
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#define ArapLapHeaderOffset 3
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#define ArapCommandOffset 4
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#define ArapCommandDataOffset 6
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#define ArapDdpHeaderOffset (ArapLapHeaderOffset + LapHeaderLength)
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#define ArapDataHeaderLength ArapDdpHeaderOffset
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#define ArapInternalMessageHeaderLength ArapCommandOffset
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/* Offsets within in Modem Link Tool packet used to define the Link
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Arbitration Packet. */
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#define LinkArbPacketTypeOffset 0
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#define LinkArbResultOffset 2
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#define LinkArbVersionOffset 4
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#define LinkArbIdLengthOffset 8
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#define LinkArbIdStringOffset 9
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#define LinkArbIdString "Remote Access"
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#define LinkArbPacketDataSize (LinkArbIdStringOffset + \
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sizeof(LinkArbIdString) - 1)
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/* Link arbitration packet types. */
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#define LinkArbConnectionRequest 1
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#define LinkArbConnectionResult 2
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/* Version numbers, for link arbitration and Arap. */
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#define LinkArbVersion 0x01008000
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#define ArapVersion 0x01008000
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/* Shortest Arap packet is an SRP ack: flags, seqnum, command = ack. */
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#define ShortestArapPacketLength 4
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/* Arap internal message command numbers. */
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#define ArapAckCommand 0
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#define ArapServerVersionCommand 1
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#define ArapRemoteVersionCommand 2
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#define ArapAuthChallengeCommand 3
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#define ArapAuthRequestCommand 4
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#define ArapAuthResponseCommand 5
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#define ArapServerStartInfoCommand 6
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#define ArapRemoteStartInfoCommand 7
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#define ArapZoneListCommand 8
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#define ArapTickleCommand 9
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#define ArapTimeLeftCommand 10
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#define ArapTimerCancelledCommand 11
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/* Arap header flags values. */
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#define ArapFixupFlag 0x80
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#define ArapPacketDataFlag 0x40
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#define ArapTokenizedFlag 0x20
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#define ArapLastGroupFlag 0x10
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#define ArapRangeFlag 0x08
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#define ArapWantSequencedFlag 0x04
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#define ArapWantPacketSequencedFlag 0x02
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#define ArapReservedFlag 0x01
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#define ArapInternalMessageFlagValue ArapLastGroupFlag
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#define ArapLinkArbFlagValue 0
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/* Internal message packet offsets (offset after command field). */
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#define ArapTickleTheNetOffset 0
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#define ArapTickleTimeLeftOffset 2
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#define ArapTickleDataSize 6
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#define ArapSvrVersionLowVersionOffset 0
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#define ArapSvrVersionHighVersionOffset 4
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#define ArapSvrVersionDataSize 8
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#define ArapRmtVersionVersionOffset 0
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#define ArapRmtVersionResultOffset 4
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#define ArapRmtVersionDataSize 6
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#define ArapAuthChallengeAuthTypeOffset 0
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#define ArapAuthChallengeRandomOffset 4
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#define ArapAuthChallengeDataSize 12
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#define ArapAuthRequestResultOffset 0
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#define ArapAuthRequestRandomOffset 2
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#define ArapAuthRequestRandResultOffset 10
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#define ArapAuthRequestGuestOffset 18
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#define ArapAuthRequestUserNameOffset 20
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#define ArapAuthRequestUserNameSize 34
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#define ArapAuthRequestDataSize 54
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#define ArapAuthResponseResultOffset 0
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#define ArapAuthResponseRandResultOffset 2
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#define ArapAuthResponseDataSize 10
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#define ArapSvrStartSendBufSizeOffset 0
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#define ArapSvrStartRcvBufSizeOffset 4
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#define ArapSvrStartRealNetOffset 8
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#define ArapSvrStartRealNodeOffset 10
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#define ArapSvrStartMaxTimeOffset 12
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#define ArapSvrStartAsNetOffset 16
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#define ArapSvrStartAsNodeOffset 18
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#define ArapSvrStartSvrZoneOffset 20
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#define ArapSrvStartSvrZoneSize 34
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#define ArapSvrStartSvrNameOffset 54
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#define ArapSvrStartSvrNameSize 34
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#define ArapSvrStartDataSize 88
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#define ArapRmtStartSendBufSizeOffset 0
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#define ArapRmtStartRcvBufSizeOffset 4
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#define ArapRmtStartRealNetOffset 8
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#define ArapRmtStartRealNodeOffset 10
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#define ArapRmtStartDataSize 12
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#define ArapZoneListLastFlagOffset 0
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#define ArapZoneListZoneListOffset 1
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#define ArapTimeLeftTimeLeftOffset 0
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#define ArapTimeLeftDataSize 4
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#define ArapTimerCncledTimeLeftOffset 0
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#define ArapTimerCancelledDataSize 4
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/* Error codes. */
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#define LinkArbErrNoError 0
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#define LinkArbErrNotAvailable (-5902)
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#define LinkArbErrBadVersion (-5906)
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#define LinkArbErrConnectionRefused (-5915)
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#define ERR_VLD8_NOERROR 0
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#define ERR_VLD8_CALLBACK (-5819)
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#define ERR_VLD8_BADVERSION (-5820)
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#define ERR_VLD8_BADUSER (-5821)
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#define ERR_VLD8_BADPASSWORD (-5822)
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#define ERR_VLD8_BADLINK (-5823)
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#define ERR_VLD8_NOCALLBACKALLOWED (-5824)
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#define ERR_VLD8_ALLCBSERVERSBUSY (-5825)
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#define ERR_VLD8_GUESTNOTALLOWED (-5826)
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#define ERR_VLD8_SERVERISIMPOSTER (-5827)
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#define ERR_VLD8_LOGINNOTENABLED (-5828)
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/* Define authentication type supported. */
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#define ArapAuthTypeTwoWayDes 1
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/* Virtual client debug code/data declarations. */
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#if ArapIncluded and IncludeVirtualClient
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extern void far VirtualClientPacketIn(int port, char far *packet);
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#endif
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