Source code of Windows XP (NT5)
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/*******************************************************************/
/* Copyright(c) 1993 Microsoft Corporation */
/*******************************************************************/
//***
//
// Filename: registry.c
//
// Description: routines for reading the registry configuration
//
// Author: Stefan Solomon (stefans) October 30, 1995.
//
// Revision History:
//
// Nov 5th 1996 Ram Cherala (ramc) Changed default value of
// EnableUnnumberedWanLinks to 0
// because there is no UI to disable it.
//
//***
#include "precomp.h"
#pragma hdrstop
BOOL bAssignSpecificNode = FALSE;
DWORD LastNodeAssigned; // Don't initialize so it will be random
//
//*** IPXCP Registry Parameters ***
IPXCP_GLOBAL_CONFIG_PARAMS GlobalConfig =
{
{0,0,0, {0,0,0,0}}, // RParams
1, // SingleClientDialout
0, // FirstWanNet
0, // WanNetPoolSize
{0,0,0}, // WanNetPoolStr;
1, // EnableUnnumberedWanLinks;
1, // EnableAutoWanNetAllocation;
0, // EnableCompressionProtocol;
0, // EnableIpxwanForWorkstationDialout;
0, // AcceptRemoteNodeNumber;
0, // DebugLog;
{0,0,0,0,0,0} // The specific wan node
};
// Returns a 1 byte value representing 2 hex digits
UCHAR GetHexValue (PWCHAR pszDigits) {
DWORD dw1, dw2;
if ((pszDigits[0] >= L'0') && (pszDigits[0] <= L'9'))
dw1 = (pszDigits[0] - L'0');
else if ((pszDigits[0] >= L'A') && (pszDigits[0] <= L'D'))
dw1 = (pszDigits[0] - L'A') + 10;
else
dw1 = 0;
if ((pszDigits[1] >= L'0') && (pszDigits[1] <= L'9'))
dw2 = (pszDigits[1] - L'0');
else if ((pszDigits[1] >= L'A') && (pszDigits[1] <= L'D'))
dw2 = (pszDigits[1] - L'A') + 10;
else
dw2 = 0;
return (UCHAR) (16 * dw1 + dw2);
}
// Assigns the first wan node as stored in pUniStrSrc and returns TRUE if this
// node is non zero.
BOOL CopyWanNode (PUCHAR puDst, UNICODE_STRING * pUniStrSrc) {
PWCHAR pBuf = pUniStrSrc->Buffer;
DWORD i;
if ((!pBuf) || (pUniStrSrc->Length == 0)) {
memset (puDst, 0, 6);
return FALSE;
}
// Convert the unicode string to uppercase
_wcsupr(pBuf);
puDst[0] = GetHexValue(&pBuf[0]);
puDst[1] = GetHexValue(&pBuf[2]);
puDst[2] = GetHexValue(&pBuf[4]);
puDst[3] = GetHexValue(&pBuf[6]);
puDst[4] = GetHexValue(&pBuf[8]);
puDst[5] = GetHexValue(&pBuf[10]);
return TRUE;
}
//***
//
// Function: GetIpxCpParameters
//
// Descr: Reads the parameters from the registry and sets them
//
//***
VOID
GetIpxCpParameters(PIPXCP_GLOBAL_CONFIG_PARAMS pConfig)
{
NTSTATUS Status;
PWSTR IpxRouterParametersPath = L"RemoteAccess\\Parameters\\Ipx";
RTL_QUERY_REGISTRY_TABLE paramTable[14]; // table size = nr of params + 1
DWORD InvalidNetworkAccessValue = 987654,
AllowNetworkAccess = InvalidNetworkAccessValue;
WCHAR pszFirstWanNode[12] = {0,0,0,0,0,0,0,0,0,0,0,0};
UNICODE_STRING UniStrFirstWanNode = {0, 0, NULL};
RtlZeroMemory(&paramTable[0], sizeof(paramTable));
RtlInitUnicodeString (&(pConfig->WanNetPoolStr), NULL);
paramTable[0].Flags = RTL_QUERY_REGISTRY_DIRECT;
paramTable[0].Name = L"FirstWanNet";
paramTable[0].EntryContext = &(pConfig->FirstWanNet);
paramTable[0].DefaultType = REG_DWORD;
paramTable[0].DefaultData = &(pConfig->FirstWanNet);
paramTable[0].DefaultLength = sizeof(ULONG);
paramTable[1].Flags = RTL_QUERY_REGISTRY_DIRECT;
paramTable[1].Name = L"WanNetPoolSize";
paramTable[1].EntryContext = &(pConfig->WanNetPoolSize);
paramTable[1].DefaultType = REG_DWORD;
paramTable[1].DefaultData = &(pConfig->WanNetPoolSize);
paramTable[1].DefaultLength = sizeof(ULONG);
paramTable[2].Flags = RTL_QUERY_REGISTRY_DIRECT;
paramTable[2].Name = L"EnableUnnumberedWanLinks";
paramTable[2].EntryContext = &(pConfig->EnableUnnumberedWanLinks);
paramTable[2].DefaultType = REG_DWORD;
paramTable[2].DefaultData = &(pConfig->EnableUnnumberedWanLinks);
paramTable[2].DefaultLength = sizeof(ULONG);
paramTable[3].Flags = RTL_QUERY_REGISTRY_DIRECT;
paramTable[3].Name = L"GlobalWanNet";
paramTable[3].EntryContext = &(pConfig->RParams.EnableGlobalWanNet);
paramTable[3].DefaultType = REG_DWORD;
paramTable[3].DefaultData = &(pConfig->RParams.EnableGlobalWanNet);
paramTable[3].DefaultLength = sizeof(ULONG);
paramTable[4].Flags = RTL_QUERY_REGISTRY_DIRECT;
paramTable[4].Name = L"AutoWanNetAllocation";
paramTable[4].EntryContext = &(pConfig->EnableAutoWanNetAllocation);
paramTable[4].DefaultType = REG_DWORD;
paramTable[4].DefaultData = &(pConfig->EnableAutoWanNetAllocation);
paramTable[4].DefaultLength = sizeof(ULONG);
paramTable[5].Flags = RTL_QUERY_REGISTRY_DIRECT;
paramTable[5].Name = L"DebugLog";
paramTable[5].EntryContext = &(pConfig->DebugLog);
paramTable[5].DefaultType = REG_DWORD;
paramTable[5].DefaultData = &(pConfig->DebugLog);
paramTable[5].DefaultLength = sizeof(ULONG);
paramTable[6].Flags = RTL_QUERY_REGISTRY_DIRECT;
paramTable[6].Name = L"EnableCompressionProtocol";
paramTable[6].EntryContext = &(pConfig->EnableCompressionProtocol);
paramTable[6].DefaultType = REG_DWORD;
paramTable[6].DefaultData = &(pConfig->EnableCompressionProtocol);
paramTable[6].DefaultLength = sizeof(ULONG);
paramTable[7].Flags = RTL_QUERY_REGISTRY_DIRECT;
paramTable[7].Name = L"SingleClientDialout";
paramTable[7].EntryContext = &(pConfig->SingleClientDialout);
paramTable[7].DefaultType = REG_DWORD;
paramTable[7].DefaultData = &(pConfig->SingleClientDialout);
paramTable[7].DefaultLength = sizeof(ULONG);
paramTable[8].Flags = RTL_QUERY_REGISTRY_DIRECT;
paramTable[8].Name = L"AllowNetworkAccess";
paramTable[8].EntryContext = &AllowNetworkAccess;
paramTable[8].DefaultType = REG_DWORD;
paramTable[8].DefaultData = &AllowNetworkAccess;
paramTable[8].DefaultLength = sizeof(ULONG);
paramTable[9].Flags = RTL_QUERY_REGISTRY_DIRECT;
paramTable[9].Name = L"EnableIpxwanForWorkstationDialout";
paramTable[9].EntryContext = &(pConfig->EnableIpxwanForWorkstationDialout);
paramTable[9].DefaultType = REG_DWORD;
paramTable[9].DefaultData = &(pConfig->EnableIpxwanForWorkstationDialout);
paramTable[9].DefaultLength = sizeof(ULONG);
paramTable[10].Flags = RTL_QUERY_REGISTRY_DIRECT;
paramTable[10].Name = L"AcceptRemoteNodeNumber";
paramTable[10].EntryContext = &(pConfig->AcceptRemoteNodeNumber);
paramTable[10].DefaultType = REG_DWORD;
paramTable[10].DefaultData = &(pConfig->AcceptRemoteNodeNumber);
paramTable[10].DefaultLength = sizeof(ULONG);
paramTable[11].Flags = RTL_QUERY_REGISTRY_DIRECT|RTL_QUERY_REGISTRY_NOEXPAND;
paramTable[11].Name = L"WanNetPool";
paramTable[11].EntryContext = &(pConfig->WanNetPoolStr);
paramTable[11].DefaultType = REG_MULTI_SZ;
paramTable[11].DefaultData = &(pConfig->WanNetPoolStr);
paramTable[11].DefaultLength = 0;
paramTable[12].Flags = RTL_QUERY_REGISTRY_DIRECT|RTL_QUERY_REGISTRY_NOEXPAND;
paramTable[12].Name = L"FirstWanNode";
paramTable[12].EntryContext = &UniStrFirstWanNode;
paramTable[12].DefaultType = REG_SZ;
paramTable[12].DefaultData = &UniStrFirstWanNode;
paramTable[12].DefaultLength = 0;
Status = RtlQueryRegistryValues(
RTL_REGISTRY_SERVICES,
IpxRouterParametersPath,
paramTable,
NULL,
NULL);
// The registry parameter "ThisMachineOnly" was replaced
// with the parameter "AllowNetworkAddress" whose semantics
// are the inverse. If a new value was assigned to
// AllowNetworkAccess, assign its inverse to pConfig->RParams.ThisMachineOnly
// here.
if (AllowNetworkAccess != InvalidNetworkAccessValue)
pConfig->RParams.ThisMachineOnly = !AllowNetworkAccess;
// Find out if a specific node number has been provided
// in the registry.
bAssignSpecificNode = CopyWanNode (pConfig->puSpecificNode, &UniStrFirstWanNode);
if (bAssignSpecificNode) {
GETLONG2ULONG(&LastNodeAssigned,&(pConfig->puSpecificNode[2]));
//TraceIpx(OPTIONS_TRACE, "GetIpxCpParameters: FirstWanNode: %.2x%.2x%.2x%.2x%.2x%.2x LastNodeAssigned= %x",
//pConfig->puSpecificNode[0],
//pConfig->puSpecificNode[1],
//pConfig->puSpecificNode[2],
//pConfig->puSpecificNode[3],
//pConfig->puSpecificNode[4],
//pConfig->puSpecificNode[5],
//LastNodeAssigned);
}
}