168 lines
4 KiB
C
168 lines
4 KiB
C
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//+----------------------------------------------------------------------------
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//
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// Copyright (C) 1992, Microsoft Corporation
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//
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// File: provider.c
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//
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// Contents: Module to initialize DFS driver providers.
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//
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// Classes:
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//
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// Functions: ProviderInit()
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//
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// History: 12 Sep 1992 Milans created.
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// 05 Apr 1993 Milans moved into driver.
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//
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//-----------------------------------------------------------------------------
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#include "dfsprocs.h"
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#include "registry.h"
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#include "regkeys.h"
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#include "provider.h"
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#define MAX_ENTRY_PATH 80 // Max. length of entry path
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#define Dbg DEBUG_TRACE_INIT
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#define prov_debug_out(x, y) DebugTrace(0, Dbg, x, y)
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text( INIT, ProviderInit )
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#endif // ALLOC_PRAGMA
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//+----------------------------------------------------------------------------
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//
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// Function: ProviderInit
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//
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// Synopsis: Initializes the provider list with
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// - Local File service provider
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// - Standard remote Cairo provider
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// - Downlevel LanMan provider.
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//
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// Arguments: None
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//
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// Returns: STATUS_SUCCESS
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//
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//-----------------------------------------------------------------------------
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NTSTATUS
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ProviderInit(void)
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{
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NTSTATUS Status;
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ULONG i, cProviders;
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APWSTR awszProviders; // array of provider names
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PBYTE pData;
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ULONG ProviderId, Capabilities;
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UNICODE_STRING ustrProviderName;
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Status = KRegSetRoot(wszRegRootDFS);
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if (!NT_SUCCESS(Status)) {
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prov_debug_out("ProviderInit: Error %08lx opening Registry!\n", Status);
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return(Status);
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}
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//
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// Get all the Provider subkeys.
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//
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Status = KRegEnumSubKeySet(wszProviderKey, &cProviders, &awszProviders);
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if (!NT_SUCCESS(Status)) {
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prov_debug_out("ProviderInit: Error %08lx reading Providers!\n", Status);
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KRegCloseRoot();
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return(Status);
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}
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//
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// Get the parameters for each provider and define the provider
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//
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for (i = 0; i < cProviders; i++) {
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//
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// Get the Provider ID
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//
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Status = KRegGetValue(awszProviders[i], wszProviderId, &pData);
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if (NT_SUCCESS(Status)) {
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ProviderId = *((ULONG *)pData);
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DfsFree(pData);
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} else {
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prov_debug_out( "Error reading Provider Id for %ws\n", awszProviders[i]);
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continue;
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}
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//
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// Get the Provider Caps
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//
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Status = KRegGetValue(awszProviders[i], wszCapabilities, &pData);
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if (NT_SUCCESS(Status)) {
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Capabilities = *((ULONG *)pData);
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DfsFree(pData);
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} else {
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prov_debug_out("Error reading Capabilities for %ws\n", awszProviders[i]);
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continue;
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}
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//
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// Get the DeviceName
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//
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Status = KRegGetValue(awszProviders[i], wszDeviceName, &pData);
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if (NT_SUCCESS(Status)) {
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RtlInitUnicodeString(&ustrProviderName, (PWSTR) pData);
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prov_debug_out("Defining %ws provider.\n", awszProviders[i]);
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prov_debug_out("\tTarget = %wZ\n", &ustrProviderName);
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Status = DfsInsertProvider(
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&ustrProviderName,
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Capabilities,
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ProviderId);
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if (!NT_SUCCESS(Status)) {
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DfsFree(pData);
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}
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} else {
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//
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// Device name is "optional"
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//
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prov_debug_out("Defining %ws provider.\n", awszProviders[i]);
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prov_debug_out("\tNo Target\n", 0);
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RtlInitUnicodeString(&ustrProviderName, NULL);
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Status = DfsInsertProvider(
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&ustrProviderName,
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Capabilities,
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ProviderId);
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}
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//
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// See if provider definition went ok
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//
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if (!NT_SUCCESS(Status)) {
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prov_debug_out("Definition of %ws provider failed!\n", awszProviders[i]);
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prov_debug_out("Error = %08lx\n", Status);
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}
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}
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KRegCloseRoot();
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KRegFreeArray(cProviders, (APBYTE) awszProviders);
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return(STATUS_SUCCESS);
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}
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