445 lines
15 KiB
C
445 lines
15 KiB
C
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/*++
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Copyright (c) 1987-92 Microsoft Corporation
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Module Name:
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Transact.c
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Abstract:
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RxpTransactSmb (analogous to the LanMan 2.x transact routine) performs a
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transaction FSCTL to the redirector.
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Author:
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John Rogers (JohnRo) 01-Apr-1991 (NT version only)
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Environment:
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Only runs under NT, although the interface is portable (Win/32).
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Requires ANSI C extensions: slash-slash comments, long external names.
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Revision History:
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various
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Original code (from LanMan 2.x).
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01-Apr-91 JohnRo
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Converted code from LanMan (OS/2) to NT.
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02-Apr-1991 JohnRo
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Moved NetpRdrFsControlTree to <netlibnt.h>.
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17-Apr-1991 JohnRo
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Fixed memory leaks (especially with pipe name).
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Quiet debug output by default.
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Reduced recompile hits from header files.
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03-May-1991 JohnRo
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Pass UNC server name for ease of use. Use Unicode transitional types.
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Use UNREFERENCED_PARAMETER() macro.
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15-May-1991 JohnRo
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Use FORMAT_LPVOID instead of FORMAT_POINTER, for maximum portability.
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22-May-1991 JohnRo
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Use correct string handling functions to allow UNICODE.
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Use NetpDbgReasonable().
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14-Jul-1991 JohnRo
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Don't do assert on server name.
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17-Jul-1991 JohnRo
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Extracted RxpDebug.h from Rxp.h.
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04-Oct-1991 JohnRo
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Generate NERR_BadTransactConfig when IPC$ isn't shared.
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Clarified a debug output message. Use TEXT() macro.
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01-Nov-1991 JohnRo
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Don't let the new (paranoid) RxpFatalErrorCode() prevent debug output.
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16-Jan-1992 JohnRo
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The redirector always expects UNICODE for the transact parm name.
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31-Mar-1992 JohnRo
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Prevent too large size requests.
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22-Sep-1992 JohnRo
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RAID 6739: Browser too slow when not logged into browsed domain.
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--*/
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// These must be included first:
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#include <nt.h> // Needed by netlibnt.h.
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#include <rxp.h> // RpcXlate's private header file.
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// These may be included in any order:
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#include <apiworke.h> // REM_APITXT, APIEXTR.
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#include <lmerr.h> // NERR_ and ERROR_ equates.
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#include <names.h> // NetpIsComputerNameValid().
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#include <netdebug.h> // NetpAssert(), NetpKdPrint(()), FORMAT_ equates.
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#include <netlib.h> // NetpMoveMemory(), etc.
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#include <ntddnfs.h> // TRANSACTION_REQUEST, etc.
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#include <prefix.h> // PREFIX_ equates.
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#include <rxpdebug.h> // IF_DEBUG().
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#include <tstring.h> // STRCAT(), STRCPY(), STRLEN().
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#include <lmuse.h>
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#ifdef CDEBUG
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#include <apinums.h> // API_WServerGetInfo, etc.
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#include <netlib.h> // NetpPackString().
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#include <smbgtpt.h> // SmbGetUshort().
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#include <server.h> // SERVER_INFO_100.
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#endif // CDEBUG
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#include <netlibnt.h> // NetpRdrFsControlTree().
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NET_API_STATUS
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RxpTransactSmb(
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IN LPTSTR UncServerName,
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IN LPTSTR TransportName OPTIONAL,
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IN LPVOID SendParmPtr,
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IN DWORD SendParmLen,
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IN LPVOID SendDataPtr OPTIONAL,
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IN DWORD SendDataLen,
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OUT LPVOID RetParmPtr OPTIONAL,
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IN DWORD RetParmLen,
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OUT LPVOID RetDataPtr OPTIONAL,
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IN OUT LPDWORD RetDataLen,
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IN BOOL NoPermissionRequired
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)
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/*++
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Routine Description:
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RxpTransactSmb takes the caller's parameters and builds a transaction
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SMB which is sent to a remote machine. This routine waits for the
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response to this SMB and returns the status from it.
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Arguments:
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UncServerName - Server name to transact with (including \\).
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SendParmPtr - Pointer to send parameters.
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SendParmLen - Length of send parameters.
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SendDataPtr - Optional pointer to send data.
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SendDataLen - Send data length.
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RetParmPtr - Optional pointer to buffer for return parameters.
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RetParmLen - Expected length of return parameters.
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RetDataPtr - Optional pointer to buffer for return data.
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RetDataLen - IN: Expected length of return data.
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OUT: Received length of return data.
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NoPermissionRequired - TRUE if this is a no permission required API. (I.e.
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TRUE if the null session may be used.)
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Return Value:
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(various values as returned by the remote API, plus values which can
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be generated by this routine)
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--*/
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/*
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* Note 1: how the packet is build and sized.
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*
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* The paramater buffer for the transaction consists of the
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* transaction parameter structure, followed by the name of the
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* target pipe and the password, which is always NULL. The pipe
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* name and password are ASCIZ strings.
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*
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* We build the pipe by taking the canonicalized server name, and
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* appending the text REM_APITXT (see net/inc/apiworke.h). This text
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* contains the pipe suffix (\pipe\lanman) plus TWO nulls, one to
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* terminate the pipe name and one to terminate the (empty) password.
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*
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* So, the maximum buffer size is as shown below for the allocation
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* of ioctl_buf. UNCLEN is the max len of the canonicalized
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* UncServerName and includes the two leading slashes, but not any
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* terminating NUL. The terminating NUL, as well as the pipe suffix
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* and the emptry password, are accounted for in APIEXTR.
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*
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* Our actual size is the same, except substitute the length of the
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* canonicalized UncServerName for UNCLEN. This is how ParmRktLen is
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* calculated.
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*
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*/
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{
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#ifndef CDEBUG
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PLMR_TRANSACTION FsctlParms; // Parms to tell redir what to do.
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DWORD FsctlParmSize; // Size of FsctlParms and strings.
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LPTSTR TreeConnName; // LM-style server & share name.
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#endif // ndef CDEBUG
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NET_API_STATUS Status;
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//
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// MOD 06/11/91 RLF
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// Create DWORD variable to avoid indirection every time RetDataLen accessed
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//
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DWORD InputRetDataLen = *RetDataLen;
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//
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// MOD 06/11/91 RLF
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//
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IF_DEBUG(TRANSACT) {
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NetpKdPrint(( PREFIX_NETAPI
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"RxpTransactSmb: entered, servername='"
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FORMAT_LPTSTR "'...\n", UncServerName));
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NetpKdPrint(( PREFIX_NETAPI
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"RxpTransactSmb: SendParm at " FORMAT_LPVOID
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", len=" FORMAT_DWORD " (partial):\n",
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(LPVOID) SendParmPtr, SendParmLen));
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if (SendParmPtr != NULL) {
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NetpDbgHexDump(SendParmPtr, NetpDbgReasonable(SendParmLen));
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}
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NetpKdPrint(( PREFIX_NETAPI
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"RxpTransactSmb: SendData at " FORMAT_LPVOID
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", len=" FORMAT_DWORD " (partial):\n",
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(LPVOID) SendDataPtr, SendDataLen));
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if (SendDataPtr != NULL) {
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NetpDbgHexDump(SendDataPtr, NetpDbgReasonable(SendDataLen));
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}
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NetpKdPrint(( PREFIX_NETAPI
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"RxpTransactSmb: RetParmPtr at " FORMAT_LPVOID
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", len=" FORMAT_DWORD ".\n", (LPVOID) RetParmPtr, RetParmLen));
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NetpKdPrint(( PREFIX_NETAPI
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"RxpTransactSmb: (old) RetData at " FORMAT_LPVOID ", "
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"len=" FORMAT_DWORD " (partial):\n",
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(LPVOID) RetDataPtr, InputRetDataLen));
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if (RetDataPtr != NULL) {
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NetpDbgHexDump(RetDataPtr, NetpDbgReasonable(InputRetDataLen));
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}
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}
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NetpAssert( SendParmLen <= MAX_TRANSACT_SEND_PARM_SIZE );
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NetpAssert( SendDataLen <= MAX_TRANSACT_SEND_DATA_SIZE );
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NetpAssert( RetParmLen <= MAX_TRANSACT_RET_PARM_SIZE );
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NetpAssert( InputRetDataLen <= MAX_TRANSACT_RET_DATA_SIZE );
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// Assumes that isremote(UncServerName) has already checked for
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// a NULL and empty string.
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if ((UncServerName == NULL) || (UncServerName[0] == 0)) {
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NetpBreakPoint();
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return (NERR_InternalError);
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}
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if (! NetpIsUncComputerNameValid(UncServerName)) {
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return (NERR_InvalidComputer);
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}
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IF_DEBUG(TRANSACT) {
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NetpKdPrint(( PREFIX_NETAPI
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"RxpTransactSmb: pipe name is '" FORMAT_LPWSTR
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"'.\n", REM_APITXT));
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}
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#ifndef CDEBUG
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//
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// Build NT-style name for what we're connecting to. Note that there is
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// NOT a pair of backslashes anywhere in this name.
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//
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{
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DWORD NameSize =
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// /Device/LanManRedirector /server /IPC$\0
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( strlen(DD_NFS_DEVICE_NAME) + STRLEN(UncServerName)-1 + 6 )
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* sizeof(TCHAR);
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TreeConnName = NetpMemoryAllocate( NameSize );
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}
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if (TreeConnName == NULL) {
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return (ERROR_NOT_ENOUGH_MEMORY);
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}
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//
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// Build the tree connect name.
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//
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(void) STRCPY(TreeConnName, UncServerName); // copy "\\server",
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(void) STRCAT(TreeConnName, (LPTSTR) TEXT("\\IPC$")); // then "\share".
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IF_DEBUG(TRANSACT) {
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NetpKdPrint(( PREFIX_NETAPI
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"RxpTransactSmb: TreeConnName is '" FORMAT_LPTSTR
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"'.\n", TreeConnName));
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}
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// Set FsctlParmSize and allocate fsctl structure.
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FsctlParmSize = sizeof(LMR_TRANSACTION) + (APIEXTR);
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FsctlParms = NetpMemoryAllocate(FsctlParmSize);
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if (FsctlParms == NULL) {
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NetpMemoryFree(TreeConnName);
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return (ERROR_NOT_ENOUGH_MEMORY);
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}
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IF_DEBUG(TRANSACT) {
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NetpKdPrint(( PREFIX_NETAPI
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"RxpTransactSmb: allocated " FORMAT_DWORD
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" bytes for fsctl parms at "
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FORMAT_LPVOID ".\n", FsctlParmSize, (LPVOID) FsctlParms));
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}
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FsctlParms->Type = TRANSACTION_REQUEST;
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FsctlParms->Size = FsctlParmSize;
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FsctlParms->Version = TRANSACTION_VERSION;
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FsctlParms->NameLength = APIEXTR-sizeof(WCHAR);
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FsctlParms->NameOffset = sizeof(LMR_TRANSACTION);
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NetpMoveMemory(
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NetpPointerPlusSomeBytes(
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FsctlParms,
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sizeof(LMR_TRANSACTION)), // dest
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REM_APITXT, // src (always UNICODE)
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APIEXTR-sizeof(WCHAR)); // len (don't copy null)
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FsctlParms->ResponseExpected = TRUE;
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FsctlParms->Timeout = REM_API_TIMEOUT; // Timeout time in milliseconds.
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FsctlParms->SetupWords = 0;
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FsctlParms->SetupOffset = 0;
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FsctlParms->MaxSetup = 0;
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FsctlParms->ParmLength = SendParmLen;
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FsctlParms->ParmPtr = SendParmPtr;
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FsctlParms->MaxRetParmLength = RetParmLen;
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NetpAssert(SendParmPtr == RetParmPtr);
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FsctlParms->DataLength = SendDataLen;
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FsctlParms->DataPtr = SendDataPtr;
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FsctlParms->MaxRetDataLength = InputRetDataLen;
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FsctlParms->RetDataPtr = RetDataPtr;
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//
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// Do the FSCTL!
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//
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Status = NetpRdrFsControlTree(
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TreeConnName, // tree connect name
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TransportName, // Transport name.
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USE_IPC, // Connection type
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FSCTL_LMR_TRANSACT, // fsctl function code
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NULL, // security descriptor
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FsctlParms, // input buffer
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FsctlParmSize, // input buffer length
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FsctlParms, // output buffer
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FsctlParmSize, // output buffer length
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NoPermissionRequired);
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if (Status == ERROR_BAD_NET_NAME) {
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Status = NERR_BadTransactConfig;
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}
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if (RxpFatalErrorCode(Status)) {
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IF_DEBUG(TRANSACT) {
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NetpKdPrint(( PREFIX_NETAPI
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"RxpTransactSmb: returning fatal status="
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FORMAT_API_STATUS ".\n", Status));
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}
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NetpMemoryFree(FsctlParms);
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NetpMemoryFree(TreeConnName);
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return (Status);
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}
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//
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// MOD 06/11/91 RLF
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// Return the received data length in *RetDataLen
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//
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*RetDataLen = FsctlParms->MaxRetDataLength;
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NetpAssert( *RetDataLen <= MAX_TRANSACT_RET_DATA_SIZE );
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//
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// MOD 06/11/91 RLF
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//
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NetpMemoryFree(FsctlParms);
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NetpMemoryFree(TreeConnName);
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#else // def CDEBUG
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{
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DWORD ApiNumber;
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ApiNumber = (DWORD) SmbGetUshort((LPWORD) SendParmPtr);
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IF_DEBUG(TRANSACT) {
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NetpKdPrint(( PREFIX_NETAPI
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"RxpTransactSmb: pretending success for API "
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FORMAT_DWORD ".\n", ApiNumber));
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}
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SmbPutUshort((LPWORD) RetParmPtr, (WORD) NERR_Success);
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|
|
switch (ApiNumber) {
|
||
|
|
case API_NetRemoteTOD :
|
||
|
|
{
|
||
|
|
UCHAR BogusTime[] = {
|
||
|
|
0xD0, 0xAE, 0xB2, 0x28, // 21-Aug-1991 (6:20PM)
|
||
|
|
0x44, 0x33, 0x22, 0x11, // msec (anything)
|
||
|
|
3, // hours
|
||
|
|
30, // minutes
|
||
|
|
15, // seconds
|
||
|
|
55, // hundredths of seconds
|
||
|
|
0xFF, 0xFF, // timezone (unknown)
|
||
|
|
0xA6, 0x00, // clock interval (60 Hz)
|
||
|
|
10, // day
|
||
|
|
1, // month
|
||
|
|
0xC7, 0x07, // year
|
||
|
|
4}; // weekday
|
||
|
|
NetpAssert(RetDataPtr != NULL);
|
||
|
|
NetpAssert(InputRetDataLen != 0);
|
||
|
|
NetpMoveMemory(
|
||
|
|
RetDataPtr, // dest
|
||
|
|
BogusTime, // src (bogus)
|
||
|
|
InputRetDataLen); // len
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
case API_WServerGetInfo :
|
||
|
|
{
|
||
|
|
LPVOID FixedDataEnd = NetpPointerPlusSomeBytes(
|
||
|
|
RetDataPtr,
|
||
|
|
sizeof(SERVER_INFO_100));
|
||
|
|
LPBYTE LastString = NetpPointerPlusSomeBytes(
|
||
|
|
RetDataPtr,
|
||
|
|
InputRetDataLen);
|
||
|
|
LPSERVER_INFO_100 p = RetDataPtr;
|
||
|
|
|
||
|
|
NetpAssert(RetDataPtr != NULL);
|
||
|
|
NetpAssert(InputRetDataLen != 0);
|
||
|
|
p->sv100_name = (LPTSTR) TEXT("\\\\bogus\\name");
|
||
|
|
if (NetpPackString(
|
||
|
|
& p->sv100_name, // in out
|
||
|
|
FixedDataEnd, // in
|
||
|
|
& LastString) == 0) { // in out
|
||
|
|
NetpBreakPoint();
|
||
|
|
return (NERR_InternalError);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // def CDEBUG
|
||
|
|
|
||
|
|
Status = (DWORD) SmbGetUshort((LPWORD) RetParmPtr);
|
||
|
|
|
||
|
|
IF_DEBUG(TRANSACT) {
|
||
|
|
NetpKdPrint(( PREFIX_NETAPI
|
||
|
|
"RxpTransactSmb: returning status="
|
||
|
|
FORMAT_API_STATUS ".\n", Status));
|
||
|
|
NetpKdPrint(( PREFIX_NETAPI
|
||
|
|
"RxpTransactSmb: RetParm at " FORMAT_LPVOID
|
||
|
|
", len=" FORMAT_DWORD " (partial):\n",
|
||
|
|
(LPVOID) RetParmPtr, RetParmLen));
|
||
|
|
if (RetParmPtr != NULL) {
|
||
|
|
NetpDbgHexDump(RetParmPtr, NetpDbgReasonable(RetParmLen));
|
||
|
|
}
|
||
|
|
NetpKdPrint(( PREFIX_NETAPI
|
||
|
|
"RxpTransactSmb: (new) RetData at " FORMAT_LPVOID ", "
|
||
|
|
"len=" FORMAT_DWORD " (partial):\n",
|
||
|
|
(LPVOID) RetDataPtr, InputRetDataLen));
|
||
|
|
if (RetDataPtr != NULL) {
|
||
|
|
NetpDbgHexDump(RetDataPtr, NetpDbgReasonable(InputRetDataLen));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return (Status);
|
||
|
|
|
||
|
|
} // RxpTransactSmb
|