windows-nt/Source/XPSP1/NT/com/rpc/runtime/mtrt/lpcpack.hxx
2020-09-26 16:20:57 +08:00

357 lines
8.6 KiB
C++

/*++
Copyright (C) Microsoft Corporation, 1992 - 1999
Module Name:
wmsgpack.hxx
Abstract:
This file contains the definitions of the packet formats used by
RPC on LPC.
Author:
Steven Zeck (stevez) 11/12/91
Revision History:
15-Dec-1992 mikemon
Rewrote the majority of the code.
... implemented WMSG protocol
05-15-96 merged LRPC / WMSG into a single protocol
Kamen Moutafov (KamenM) Mar-2000 Support for extended error info
--*/
#ifndef __LPCPACK_HXX__
#define __LPCPACK_HXX__
#define LRPC_DIRECTORY_NAME L##"\\RPC Control\\"
#define MINIMUM_PARTIAL_BUFFLEN 10240
#define PORT_NAME_LEN 64
#define BIND_BACK_PORT_NAME_LEN 128
#define LRPC_TIMEOUT 100
#define LRPC_THRESHOLD_SIZE (MINIMUM_PARTIAL_BUFFLEN * 3)
#define BIND_BACK_FLAG 1
#define NEW_SECURITY_CONTEXT_FLAG 2
#define NEW_PRESENTATION_CONTEXT_FLAG 4
#define EXTENDED_ERROR_INFO_PRESENT 8
#define DEFAULT_LOGONID_FLAG (0x10)
#define SERVER_BIND_EXCH_RESP (0x20)
#define TS_NDR20_FLAG 1
#define TS_NDR64_FLAG 2
#define TS_NDRTEST_FLAG 4
typedef struct _LRPC_BIND_EXCHANGE
{
INT ConnectType ;
DWORD AssocKey ;
RPC_SYNTAX_IDENTIFIER InterfaceId;
// can be any of TS_NDR20_FLAG, TS_NDR64_FLAG
unsigned int TransferSyntaxSet;
RPC_STATUS RpcStatus;
// can be: BIND_BACK_FLAG, NEW_SECURITY_CONTEXT_FLAG, NEW_PRESENTATION_CONTEXT_FLAG
// EXTENDED_ERROR_INFO_PRESENT, SERVER_BIND_EXCH_RESP on return from the server
unsigned short Flags;
// the first is always the presentation context id for NDR20,
// and the second is for NDR64. The third can be NDRTest - that's
// why the + 1
unsigned short PresentationContext[MaximumNumberOfTransferSyntaxes + 1];
unsigned long SecurityContextId;
union
{
char szPortName[PORT_NAME_LEN] ;
struct
{
// provide 8 byte alignment
unsigned char Pad2[4];
unsigned char Buffer[4];
};
};
} LRPC_BIND_EXCHANGE;
// message types
#define LRPC_MSG_BIND 0
#define LRPC_MSG_REQUEST 1
#define LRPC_MSG_RESPONSE 2
#define LRPC_MSG_CALLBACK 3
#define LRPC_MSG_FAULT 4
#define LRPC_MSG_CLOSE 5
#define LRPC_MSG_ACK 6
#define LRPC_BIND_ACK 7
#define LRPC_MSG_COPY 8
#define LRPC_MSG_PUSH 9
#define LRPC_MSG_CANCEL 10
#define LRPC_MSG_BIND_BACK 11
#define LRPC_ASYNC_REQUEST 12
#define LRPC_PARTIAL_REQUEST 13
#define LRPC_CLIENT_SEND_MORE 14
#define LRPC_SERVER_SEND_MORE 15
#define LRPC_MSG_FAULT2 16
#define MAX_LRPC_MSG 16
// connect types
#define LRPC_CONNECT_REQUEST 0
#define LRPC_CONNECT_RESPONSE 1
#define LRPC_CONNECT_TICKLE 2
#define MAX_LRPC_CONTEXTS ((PORT_MAXIMUM_MESSAGE_LENGTH - sizeof(LRPC_BIND_MESSAGE)) / sizeof(DWORD))
typedef struct _OLD_SECURITY_CONTEXTS
{
DWORD NumContexts;
DWORD SecurityContextId[1];
} OLD_SECURITY_CONTEXTS;
#define BIND_NAK_PICKLE_BUFFER_OFFSET (FIELD_OFFSET(LRPC_BIND_EXCHANGE, Buffer) \
+ FIELD_OFFSET(LRPC_BIND_MESSAGE, BindExchange))
#define MAX_BIND_NAK (PORT_MAXIMUM_MESSAGE_LENGTH - BIND_NAK_PICKLE_BUFFER_OFFSET)
typedef struct _LRPC_BIND_MESSAGE
{
PORT_MESSAGE LpcHeader;
unsigned char MessageType;
unsigned char Pad[3];
LRPC_BIND_EXCHANGE BindExchange;
OLD_SECURITY_CONTEXTS OldSecurityContexts;
} LRPC_BIND_MESSAGE;
typedef struct _LRPC_BIND_BACK_MESSAGE
{
PORT_MESSAGE LpcHeader;
unsigned char MessageType;
unsigned char Pad[3];
DWORD AssocKey ;
char szPortName[BIND_BACK_PORT_NAME_LEN] ;
} LRPC_BIND_BACK_MESSAGE;
// buffer flags
#define LRPC_BUFFER_IMMEDIATE 0x0001
#define LRPC_BUFFER_REQUEST 0x0002
#define LRPC_BUFFER_SERVER 0x0004
// misc flags
#define LRPC_SYNC_CLIENT 0x0040
#define LRPC_BUFFER_PARTIAL 0x0080
#define LRPC_OBJECT_UUID 0x0100
#define LRPC_NON_PIPE 0x0200
#define LRPC_CAUSAL 0x0400
#define LRPC_EEINFO_PRESENT 0x0800
typedef struct _LRPC_RPC_HEADER
{
unsigned char MessageType;
unsigned short PresentContext;
unsigned short Flags ;
unsigned short ProcedureNumber;
UUID ObjectUuid;
unsigned long SecurityContextId;
unsigned long CallId;
} LRPC_RPC_HEADER;
typedef struct _LRPC_SERVER_BUFFER
{
unsigned int Length;
LPC_PVOID Buffer;
} LRPC_SERVER_BUFFER;
#define MAXIMUM_MESSAGE_BUFFER \
(PORT_MAXIMUM_MESSAGE_LENGTH - sizeof(PORT_MESSAGE) \
- sizeof(LRPC_RPC_HEADER))
typedef struct _LRPC_CONNECT_MESSAGE
{
PORT_MESSAGE LpcHeader;
LRPC_BIND_EXCHANGE BindExchange;
} LRPC_CONNECT_MESSAGE;
typedef struct _LRPC_RPC_MESSAGE
{
PORT_MESSAGE LpcHeader;
LRPC_RPC_HEADER RpcHeader;
union
{
unsigned char Buffer[MAXIMUM_MESSAGE_BUFFER];
PORT_DATA_INFORMATION Request;
LRPC_SERVER_BUFFER Server;
};
} LRPC_RPC_MESSAGE;
typedef struct _LRPC_FAULT_MESSAGE
{
PORT_MESSAGE LpcHeader;
LRPC_RPC_HEADER RpcHeader ;
RPC_STATUS RpcStatus;
// align the Buffer on 8 bytes - required for pickling
DWORD Padding1;
// the actual length has to be retrieved
// from LpcHeader.u1.s1.DataLength/TotalLength
unsigned char Buffer[4];
} LRPC_FAULT_MESSAGE;
#define MAXIMUM_FAULT_MESSAGE \
(PORT_MAXIMUM_MESSAGE_LENGTH - sizeof(LRPC_FAULT_MESSAGE))
// N.B. The layout of fault2 must match the layout of
// LRPC_RPC_MESSAGE up to and including the union of
// Request/Server. This is so because many code paths
// will operate on both, and having the same layout
// allows us to avoid special casing those
typedef struct _LRPC_FAULT2_MESSAGE
{
PORT_MESSAGE LpcHeader;
LRPC_RPC_HEADER RpcHeader ;
union
{
PORT_DATA_INFORMATION Request;
LRPC_SERVER_BUFFER Server;
};
RPC_STATUS RpcStatus;
} LRPC_FAULT2_MESSAGE;
typedef struct _LRPC_CLOSE_MESSAGE
{
PORT_MESSAGE LpcHeader;
unsigned char MessageType;
unsigned char Pad[3];
} LRPC_CLOSE_MESSAGE;
typedef struct _LRPC_PUSH_MESSAGE
{
PORT_MESSAGE LpcHeader;
LRPC_RPC_HEADER RpcHeader;
PORT_DATA_INFORMATION Response;
RPC_STATUS RpcStatus;
} LRPC_PUSH_MESSAGE;
#define ACK_BUFFER_COMPLETE 0x01
typedef struct _LRPC_ACK_MESSAGE
{
PORT_MESSAGE LpcHeader;
unsigned char MessageType;
unsigned char Pad ;
short Shutup ;
RPC_STATUS RpcStatus;
int ValidDataSize ;
int Flags ;
} LRPC_ACK_MESSAGE;
typedef struct _LRPC_COPY_MESSAGE
{
PORT_MESSAGE LpcHeader;
LRPC_RPC_HEADER RpcHeader ;
PORT_DATA_INFORMATION Request;
LRPC_SERVER_BUFFER Server;
RPC_STATUS RpcStatus;
int IsPartial ;
} LRPC_COPY_MESSAGE;
typedef struct _LRPC_PARTIAL_MESSAGE
{
PORT_MESSAGE LpcHeader;
LRPC_RPC_HEADER RpcHeader ;
PORT_DATA_INFORMATION Request;
RPC_STATUS RpcStatus;
int IsPartial ;
} LRPC_PARTIAL_MESSAGE;
typedef union _LRPC_MESSAGE
{
LRPC_CONNECT_MESSAGE Connect;
LRPC_BIND_MESSAGE Bind;
LRPC_RPC_MESSAGE Rpc;
LRPC_FAULT_MESSAGE Fault;
LRPC_FAULT2_MESSAGE Fault2;
LRPC_CLOSE_MESSAGE Close;
PORT_MESSAGE LpcHeader;
LRPC_ACK_MESSAGE Ack ;
LRPC_PUSH_MESSAGE Push ;
LRPC_BIND_BACK_MESSAGE BindBack ;
LRPC_PARTIAL_MESSAGE Partial ;
} LRPC_MESSAGE;
//
// Conversion functions to use the 64bit LPC structures when built 32bit on 64bit NT(wow64).
#if defined(BUILD_WOW6432)
inline
CLIENT_ID
MsgClientIdToClientId(const CLIENT_ID64 & s) {
CLIENT_ID d;
d.UniqueProcess = (HANDLE)s.UniqueProcess;
d.UniqueThread = (HANDLE)s.UniqueThread;
return d;
}
inline
CLIENT_ID64
ClientIdToMsgClientId(const CLIENT_ID & s) {
CLIENT_ID64 d;
d.UniqueProcess = (ULONGLONG)s.UniqueProcess;
d.UniqueThread = (ULONGLONG)s.UniqueThread;
return d;
}
inline
ULONGLONG
PtrToMsgPtr(void * s) {
return (ULONGLONG)s;
}
inline
void *
MsgPtrToPtr(ULONGLONG s) {
return (void *)s;
}
#else
inline
CLIENT_ID
MsgClientIdToClientId(const CLIENT_ID & s) {
return s;
}
inline
CLIENT_ID
ClientIdToMsgClientId(const CLIENT_ID s) {
return s;
}
inline
PVOID
PtrToMsgPtr(PVOID s) {
return s;
}
inline
void *
MsgPtrToPtr(void *s) {
return s;
}
#endif
RPC_STATUS
LrpcMapRpcStatus (
IN RPC_STATUS RpcStatus
);
void
ShutdownLrpcClient (
) ;
#endif // __LPCPACK_HXX__