windows-nt/Source/XPSP1/NT/ds/security/protocols/msv_sspi/nlnetapi.c
2020-09-26 16:20:57 +08:00

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/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
nlnetapi.c
Abstract:
This module loads Netapi.dll at runtime and sets up pointers to
the APIs called by Msv1_0.
Author:
Dave Hart (DaveHart) 25-Mar-1992
Environment:
User mode Win32 - msv1_0 authentication package DLL
Revision History:
Dave Hart (DaveHart) 26-Mar-1992
Added RxNetUserPasswordSet.
Dave Hart (DaveHart) 30-May-1992
Removed NetRemoteComputerSupports, added NetApiBufferAllocate.
Chandana Surlu 21-Jul-1996
Stolen from \\kernel\razzle3\src\security\msv1_0\nlnetapi.c
Scott Field (sfield) 19-May-1999
Use DELAYLOAD against ntdsapi.dll and netapi32.dll
--*/
#include "msp.h"
#include "nlp.h"
typedef NTSTATUS
(*PI_NetNotifyNetlogonDllHandle) (
IN PHANDLE Role
);
VOID
NlpLoadNetlogonDll (
VOID
)
/*++
Routine Description:
Uses Win32 LoadLibrary and GetProcAddress to get pointers to functions
in Netlogon.dll that are called by Msv1_0.
Arguments:
None.
Return Value:
None. If successful, NlpNetlogonDllHandle is set to non-null and function
pointers are setup.
--*/
{
HANDLE hModule = NULL;
PI_NetNotifyNetlogonDllHandle pI_NetNotifyNetlogonDllHandle = NULL;
//
// Load netlogon.dll also.
//
hModule = LoadLibraryA("netlogon");
if (NULL == hModule) {
#if DBG
DbgPrint("Msv1_0: Unable to load netlogon.dll, Win32 error %d.\n", GetLastError());
#endif
goto Cleanup;
}
NlpNetLogonSamLogon = (PNETLOGON_SAM_LOGON_PROCEDURE)
GetProcAddress(hModule, "NetrLogonSamLogon");
if (NlpNetLogonSamLogon == NULL) {
#if DBG
DbgPrint(
"Msv1_0: Can't find entrypoint NetrLogonSamLogon in netlogon.dll.\n"
" Win32 error %d.\n", GetLastError());
#endif
goto Cleanup;
}
NlpNetLogonMixedDomain = (PNETLOGON_MIXED_DOMAIN_PROCEDURE)
GetProcAddress(hModule, "I_NetLogonMixedDomain");
if (NlpNetLogonMixedDomain == NULL) {
#if DBG
DbgPrint(
"Msv1_0: Can't find entrypoint I_NetLogonMixedDomain in netlogon.dll.\n"
" Win32 error %d.\n", GetLastError());
#endif
goto Cleanup;
}
NlpNetLogonSamLogoff = (PNETLOGON_SAM_LOGOFF_PROCEDURE)
GetProcAddress(hModule, "NetrLogonSamLogoff");
if (NlpNetLogonSamLogoff == NULL) {
#if DBG
DbgPrint(
"Msv1_0: Can't find entrypoint NetrLogonSamLogoff in netlogon.dll.\n"
" Win32 error %d.\n", GetLastError());
#endif
goto Cleanup;
}
//
// Find the address of the I_NetNotifyNetlogonDllHandle procedure.
// This is an optional procedure so don't complain if it isn't there.
//
pI_NetNotifyNetlogonDllHandle = (PI_NetNotifyNetlogonDllHandle)
GetProcAddress( hModule, "I_NetNotifyNetlogonDllHandle" );
//
// Found all the functions needed, so indicate success.
//
NlpNetlogonDllHandle = hModule;
hModule = NULL;
//
// Notify Netlogon that we've loaded it.
//
if( pI_NetNotifyNetlogonDllHandle != NULL ) {
(VOID) (*pI_NetNotifyNetlogonDllHandle)( &NlpNetlogonDllHandle );
}
Cleanup:
if ( hModule != NULL ) {
FreeLibrary( hModule );
}
return;
}