windows-nt/Source/XPSP1/NT/termsrv/remdsk/rds/t120/h/mcsdllif.h
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/*
* mcsdllif.h
*
* Copyright (c) 1993 by DataBeam Corporation, Lexington, KY
*
* Abstract:
* This is the interface file for the MCAT MCS DLL Interface class.
*
* When this class is first instantiated, it initializes MCS. After
* that, the application using this object requests MCS services through
* this object. This object is also responsible for receiving and
* forwarding cllback messages. When this object is deleted it calls
* MCSCleanupAPI to shut down the MCATMCS DLL.
*
* MCS interface objects represent the Service Access Point (SAP)
* between GCC and MCS. Exactly how the interface works is an
* implementation matter for those classes that inherit from this one.
* This class defines the public member functions that GCC expects to be
* able to call upon to utilize MCS.
*
* The public member functions defined here can be broken into two
* categories: those that are part of T.122; and those that are not.
* The T.122 functions include connect provider request, connect
* provider response, disconnect provider request, create domain, delete
* domain, send data request, etc. All other member functions are
* considered a local matter from a standards point-of-view. These
* functions include support for initialization and setup, as well as
* functions allowing GCC to poll MCS for activity.
*
* Note that this class also handles the connect provider confirms by
* keeping a list of all the objects with outstanding connect provider
* request. These are held in the ConfirmObjectList.
*
* Caveats:
* None.
*
* Author:
* Christos Tsollis
*
*/
#ifndef _MCS_DLL_INTERFACE_
#define _MCS_DLL_INTERFACE_
#include "mcsuser.h"
/*
** This dictionary keeps up with all the outstanding connect provider
** request. When a response is received, this interface class will obtain
** a pointer to the correct object from this list and will then pass on the
** response.
*/
class CConnHdlConfList2 : public CList2
{
DEFINE_CLIST2_(CConnHdlConfList2, CConf*, ConnectionHandle)
};
extern PController g_pMCSController;
/*
* CONNECT_PROVIDER_INDICATION
*
* Parameter1:
* PConnectProviderIndication
* This is a pointer to a structure that contains all necessary
* information about an incoming connection.
* Parameter2: Unused
*
* Functional Description:
* This indication is sent to the owner object when an incoming
* connection is detected. The owner object should respond by calling
* MCSConnectProviderResponse indicating whether or not the connection
* is to be accepted.
*/
/*
* CONNECT_PROVIDER_CONFIRM
*
* Parameter1:
* PConnectProviderConfirm
* This is a pointer to a structure that contains all necessary
* information about an outgoing connection.
* Parameter2: Unused
*
* Functional Description:
* This confirm is sent to the object that made the original connect
* provider request. It informs the requesting object of when the new
* connection is available for use, or that the connection could not be
* established (or that it was rejected by the remote site).
*/
/*
* DISCONNECT_PROVIDER_INDICATION
*
* Parameter1: Unused
* Parameter2:
* (LOWUSHORT) ConnectionHandle
* This is the handle for the connection that was lost.
* (HIGHUSHORT) Reason
* This is the reason for the disconnect.
*
* Functional Description:
* This indication is sent to the owner object whenever a connection
* is lost. This essentially tells the owner object that the contained
* connection handle is no longer valid.
*/
/*
* GCC_ATTACH_USER_CONFIRM
*
* Parameter1: Unused
* Parameter2:
* (LOWUSHORT) UserID
* If the result is success, then this is the newly assigned user ID.
* If the result is failure, then this field is undefined.
* (HIGHUSHORT) Result
* This is the result of the attach user request.
*
* Functional Description:
* This confirm is sent to the user object in response to a previous
* call to MCS_AttachRequest. It contains the result of that service
* request. If successful, it also contains the user ID that has been
* assigned to that attachment.
*/
/*
* GCC_DETACH_USER_INDICATION
*
* Parameter1: Unused
* Parameter2:
* (LOWUSHORT) UserID
* This is the user ID of the user that is detaching.
* (HIGHUSHORT) Reason
* This is the reason for the detachment.
*
* Functional Description:
* This indication is sent to the user object whenever a user detaches
* from the domain. This is sent to ALL remaining user objects in the
* domain automatically. Note that if the user ID contained in this
* indication is the same as that of the user object receiving it, the
* user is essentially being told that it has been kicked out of the
* conference. The user handle and user ID are no longer valid in this
* case. It is the responsibility of the user object to recognize when
* this occurs.
*/
/*
* GCC_CHANNEL_JOIN_CONFIRM
*
* Parameter1: Unused
* Parameter2:
* (LOWUSHORT) ChannelID
* This is the channel that has been joined.
* (HIGHUSHORT) Result
* This is the result of the join request.
*
* Functional Description:
* This confirm is sent to a user object in response to a previous
* call to ChannelJoinRequest. It lets the user object know if the
* join was successful for a particular channel. Furthermore, if the
* join request was for channel 0 (zero), then the ID of the assigned
* channel is contained in this confirm.
*/
/*
* CHANNEL_LEAVE_INDICATION
*
* Parameter1: Unused
* Parameter2:
* (LOWUSHORT) ChannelID
* This is the channel that has been left or is being told to leave.
* (HIGHUSHORT) Reason
* This is the reason for the leave.
*
* Functional Description:
* This indication is sent to a user object when a domain merger has
* caused a channel to be purged from the lower domain. This informs the
* the user that it is no longer joined to the channel.
*/
/*
* GCC_SEND_DATA_INDICATION
*
* Parameter1:
* PSendData
* This is a pointer to a SendData structure that contains all
* information about the data received.
* Parameter2: Unused
*
* Functional Description:
* This indication is sent to a user object when data is received
* by the local MCS provider on a channel to which the user is joined.
*/
/*
* GCC_UNIFORM_SEND_DATA_INDICATION
*
* Parameter1:
* PSendData
* This is a pointer to a SendData structure that contains all
* information about the data received.
* Parameter2: Unused
*
* Functional Description:
* This indication is sent to a user object when data is received
* by the local MCS provider on a channel to which the user is joined.
*/
/*
* TRANSPORT_STATUS_INDICATION
*
* Parameter1:
* PTransportStatus
* This is a pointer to a TransportStatus structure that contains
* information about this indication. This structure is defined in
* "transprt.h".
*
* Functional Description:
* A transport stack will issue this indication when it detects a status
* change of some sort. It fills in the TransportStatus structure to
* describe the state change and the sends it to MCS. MCS fills in the
* field containing the name of the stack (using the transport identifier),
* and forwards it to GCC.
*/
class CConf;
class MCSUser;
class CMCSUserList : public CList
{
DEFINE_CLIST(CMCSUserList, MCSUser*)
};
class MCSDLLInterface
{
public:
MCSDLLInterface(PMCSError);
~MCSDLLInterface ();
MCSError CreateDomain(GCCConfID *domain_selector)
{
ASSERT (g_pMCSController != NULL);
return g_pMCSController->HandleAppletCreateDomain(domain_selector);
};
MCSError DeleteDomain(GCCConfID *domain_selector)
{
ASSERT (g_pMCSController != NULL);
return g_pMCSController->HandleAppletDeleteDomain(domain_selector);
}
MCSError ConnectProviderRequest (
GCCConfID *calling_domain,
GCCConfID *called_domain,
TransportAddress calling_address,
TransportAddress called_address,
BOOL fSecure,
DBBoolean upward_connection,
PUChar user_data,
ULong user_data_length,
PConnectionHandle connection_handle,
PDomainParameters domain_parameters,
CConf *confirm_object);
MCSError ConnectProviderResponse (
ConnectionHandle connection_handle,
GCCConfID *domain_selector,
PDomainParameters domain_parameters,
Result result,
PUChar user_data,
ULong user_data_length);
MCSError DisconnectProviderRequest (
ConnectionHandle connection_handle);
MCSError AttachUserRequest (
GCCConfID *domain_selector,
PIMCSSap *ppMCSSap,
MCSUser *user_object);
MCSError DetachUserRequest (
PIMCSSap pMCSSap,
MCSUser *pMCSUser);
MCSError ChannelJoinRequest (
ChannelID channel_id,
PIMCSSap pMCSSap)
{
return pMCSSap->ChannelJoin (channel_id);
};
MCSError ChannelLeaveRequest (
ChannelID channel_id,
PIMCSSap pMCSSap)
{
return pMCSSap->ChannelLeave (channel_id);
};
MCSError SendDataRequest (
ChannelID channel_id,
PIMCSSap pMCSSap,
Priority priority,
PUChar user_data,
ULong user_data_length)
{
return pMCSSap->SendData (NORMAL_SEND_DATA,
channel_id,
priority,
user_data,
user_data_length,
APP_ALLOCATION);
};
MCSError UniformSendDataRequest (
ChannelID channel_id,
PIMCSSap pMCSSap,
Priority priority,
PUChar user_data,
ULong user_data_length)
{
return pMCSSap->SendData (UNIFORM_SEND_DATA,
channel_id,
priority,
user_data,
user_data_length,
APP_ALLOCATION);
};
MCSError TokenGrabRequest (
PIMCSSap pMCSSap,
TokenID token_id)
{
return pMCSSap->TokenGrab (token_id);
};
MCSError TokenGiveRequest (
PIMCSSap pMCSSap,
TokenID token_id,
UserID receiver_id)
{
return pMCSSap->TokenGive (token_id,
receiver_id);
};
MCSError TokenGiveResponse (
PIMCSSap pMCSSap,
TokenID token_id,
Result result)
{
return pMCSSap->TokenGiveResponse (token_id,
result);
};
MCSError TokenPleaseRequest (
PIMCSSap pMCSSap,
TokenID token_id)
{
return pMCSSap->TokenPlease (token_id);
};
MCSError TokenReleaseRequest (
PIMCSSap pMCSSap,
TokenID token_id)
{
return pMCSSap->TokenRelease (token_id);
};
MCSError TokenTestRequest (
PIMCSSap pMCSSap,
TokenID token_id)
{
return pMCSSap->TokenTest (token_id);
};
#ifdef NM_RESET_DEVICE
MCSError ResetDevice (
PChar device_identifier)
{
return MCSResetDevice (device_identifier);
};
#endif // NM_RESET_DEVICE
GCCError TranslateMCSIFErrorToGCCError (MCSError mcs_error)
{
return ((mcs_error <= MCS_SECURITY_FAILED) ?
(GCCError) mcs_error : GCC_UNSUPPORTED_ERROR);
};
void ProcessCallback (
unsigned int message,
LPARAM parameter,
PVoid object_ptr);
private:
MCSError AddObjectToConfirmList (
CConf *confirm_object,
ConnectionHandle connection_handle);
DBBoolean IsUserAttachmentVaid (
MCSUser *user_object)
{
return (m_MCSUserList.Find(user_object));
};
CConnHdlConfList2 m_ConfirmConnHdlConfList2;
CMCSUserList m_MCSUserList;
};
typedef MCSDLLInterface * PMCSDLLInterface;
GCCResult TranslateMCSResultToGCCResult ( Result mcs_result );
/*
* MCSDLLInterface ( HANDLE instance_handle,
* PMCSError error_value)
*
* Functional Description:
* This is the constructor for the MCS Interface class. It is responsible
* for initializing the MCAT MCS DLL. Any errors that occur during
* initialization are returned in the error_value provided.
*
* Formal Parameters:
* instance_handle (i)
* The windows instance handle is used when creating MCS diagnostics.
* error_value (i)
* This pointer is used to pass back any errors that may have occured
* while initializing the class. This includes any problems with
* initializing the MCAT MCS DLL.
*
* Return Value:
* None.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* ~MCSDLLInterface ()
*
* Functional Description:
* This is the destructor for the MCS Interface class. It is responsible
* for cleaning up both itself and the MCAT MCS DLL.
*
* Formal Parameters:
* None.
*
* Return Value:
* None.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* MCSError CreateDomain (
* DomainSelector domain_selector_string,
* UINT domain_selector_length)
*
* Functional Description:
* This function is used to create an MCS domain.
*
* Formal Parameters:
* domain_selector_string (i)
* This is the name of the domain to be created.
* domain_selector_length (i)
* This is the length of the domain name in characters.
*
* Return Value:
* MCS_NO_ERROR
* On success
* MCS_NOT_INITIALIZED
* The mcs interface did not initialize properly
* MCS_DOMAIN_ALREADY_EXISTS
* A domain by this name alread exist
* MCS_ALLOCATION_FAILURE
* A memory failure occured
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* MCSError DeleteDomain (
* DomainSelector domain_selector_string,
* UINT domain_selector_length)
*
* Functional Description:
* This function an MCS domain which was created using the CreateDomain
* call.
*
* Formal Parameters:
* domain_selector_string (i)
* This is the name of the domain to be deleted.
* domain_selector_length (i)
* This is the length of the domain name in characters.
*
* Return Value:
* MCS_NO_ERROR
* On success
* MCS_NOT_INITIALIZED
* The mcs interface did not initialize properly
* MCS_NO_SUCH_DOMAIN
* The domain to be deleted does not exist
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* MCSError ConnectProviderRequest (
* DomainSelector calling_domain,
* UINT calling_domain_length,
* DomainSelector called_domain,
* UINT called_domain_length,
* TransportAddress calling_address,
* TransportAddress called_address,
* DBBoolean upward_connection,
* PUChar user_data,
* ULong user_data_length,
* PConnectionHandle connection_handle,
* PDomainParameters domain_parameters,
* CConf *confirm_object)
*
* Functional Description:
* This T.122 primitive is used to connect two domains. This request
* should always be followed by a connect provider confirm. The
* confirm will be sent to be object specified by the confirm object
* the is passed into this routine.
*
* Formal Parameters:
* calling_domain (i)
* This is a pointer to the calling domain selector string.
* calling_domain_length (i)
* This is the length of the calling domain selector string.
* called_domain (i)
* This is a pointer to the called domain selector string.
* called_domain_length (i)
* This is the length of the called domain selector length.
* calling_address (i)
* This is a pointer to the calling addres (an ASCII string).
* called_address (i)
* This is a pointer to the address being called (an ASCII string).
* upward_connection (i)
* This boolean flag denotes the hierarchical direction of the
* connection to be created (TRUE means upward, FALSE means downward).
* user_data (i)
* This is a pointer to the user data to be transmitted during the
* creation of this new connection.
* user_data_length (i)
* This is the length of the user data field mentioned above.
* connection_handle (o)
* This is set by MCS to a unique handle that can be used to access
* this connection on subsequent calls.
* domain_parameters (i)
* This is a pointer to a structure containing the domain parameters
* that the node controller wishes to use for this new connection.
* confirm_object (i)
* This is a pointer to the object that the connect provider response
* is sent to.
* object_message_base (i)
* This message base is added to the connect provider response
* message.
*
* Return Value:
* MCS_NO_ERROR
* On success
* MCS_NOT_INITIALIZED
* The mcs interface did not initialize properly
* MCS_NO_SUCH_DOMAIN
* The domain to connect does not exist
* MCS_DOMAIN_NOT_HIERARCHICAL
* An upward connection from this domain already exist
* MCS_NVALID_ADDRESS_PREFIX
* The transport prefix is not recognized
* MCS_ALLOCATION_FAILURE
* A memory failure occured
* MCS_INVALID_PARAMETER
* One of the parameters to the request is invalid
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* MCSError ConnectProviderResponse (
* ConnectionHandle connection_handle,
* DomainSelector domain_selector,
* UINT domain_selector_length,
* PDomainParameters domain_parameters,
* Result result,
* PUChar user_data,
* ULong user_data_length)
*
* Functional Description:
* This function is used to respond to a connect provider indication.
* This call will result in a connect provider confirm at the remote
* node.
*
* Formal Parameters:
* connection_handle (i)
* This is the handle of the connection that the response is for.
* domain_selector (i)
* This is a pointer to the domain selector identifying which domain
* the inbound connection is to be bound to.
* domain_selector_length (i)
* This is the length of the above domain selector.
* domain_parameters (i)
* This is a pointer to a structure containing the domain parameters
* that the node controller has agreed to use for the connection
* being created.
* result (i)
* This is the result. This determines whether an inbound connection
* is accepted or rejected. Anything but RESULT_SUCCESSFUL rejects
* the connection.
* user_data (i)
* This is the address of user data to be sent in the connect response
* PDU.
* user_data_length (i)
* This is the length of the user data mentioned above.
*
* Return Value:
* MCS_NO_ERROR
* On success
* MCS_NOT_INITIALIZED
* The mcs interface did not initialize properly
* MCS_NO_SUCH_CONNECTION
* The connection specified is invalid
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* MCSError DisconnectProviderRequest (
* ConnectionHandle connection_handle)
*
* Functional Description:
* This function is used to disconnect a node from a particular connection.
* This can be either an upward or downward connection
*
* Formal Parameters:
* connection_handle (i)
* This is the handle of the connection which the node controller wants
* to disconnect.
*
* Return Value:
* MCS_NO_ERROR
* On success
* MCS_NOT_INITIALIZED
* The mcs interface did not initialize properly
* MCS_NO_SUCH_CONNECTION
* The connection specified is invalid
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* MCSError AttachUserRequest (
* DomainSelector domain_selector,
* UINT domain_selector_length,
* PIMCSSap *ppMCSSap,
* PMCSUser user_object)
*
* Functional Description:
* This function is used to create a user attachment to MCS. It will result
* in an attach user confirm.
*
* Formal Parameters:
* domain_selector (i)
* This is the name of the domain to which the user wishes to attach.
* domain_selector_length (i)
* This is the length of the above domain selector.
* ppMCSSap (o)
* This is a pointer to a variable where the new user handle will be
* stored upon successful completion of this call.
* user_object (i)
* This is a pointer to the MCSUser object which should receive the callbacks
* for this user attachment.
*
* Return Value:
* MCS_NO_ERROR
* On success
* MCS_NO_SUCH_DOMAIN
* The domain to be attached to does not exist
* MCS_ALLOCATION_FAILURE
* A memory failure occured
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* void ProcessCallback ( UINT message,
* ULong parameter,
* PVoid object_ptr)
*
* Functional Description:
* This routine is called whenever a callback message is received by
* the "C" callback routine. It is responsible for both processing
* callback messages and forwarding callback messages on to the
* appropriate object.
*
* Formal Parameters:
* message (i)
* This is the mcs message to be processed
* parameter (i)
* Varies according to the message. See the MCAT programmers manual
* object_ptr (i)
* This is the user defined field that was passed to MCS on
* initialization.
*
* Return Value:
* MCS_NO_ERROR
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* MCSDLLInterface::TranslateMCSIFErrorToGCCError ()
* MCSError mcs_error)
*
* Public
*
* Function Description
* This routine translate an MCS Interface error into a GCC Error.
*
* Formal Parameters:
* mcs_error (i)
* This is the error to be translated.
*
* Return Value:
* This is the translated GCC error.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
#endif