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1147 lines
28 KiB
1147 lines
28 KiB
/*++
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Copyright (C) Microsoft Corporation, 1996 - 1999
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Module Name:
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QueryDB
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Abstract:
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This module provides simple access to the Calais Registry Database.
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Author:
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Doug Barlow (dbarlow) 11/25/1996
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Environment:
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Win32, C++ w/ Exceptions
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Notes:
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?Notes?
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--*/
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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#include <stdlib.h>
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#include <tchar.h>
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#include <winscard.h>
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#include <CalaisLb.h>
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// Keep this in sync with ChangeDB.cpp
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typedef struct {
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DWORD dwScope;
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HKEY hKey;
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} RegMap;
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#if SCARD_SCOPE_SYSTEM < SCARD_SCOPE_USER
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#error Invalid ordering to SCARD_SCOPE definitions
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#endif
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static const RegMap l_rgRegMap[]
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= {
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{ SCARD_SCOPE_USER, HKEY_CURRENT_USER },
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// { SCARD_SCOPE_TERMINAL, Not implemented yet }, // ?Hydra?
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{ SCARD_SCOPE_SYSTEM, HKEY_LOCAL_MACHINE }
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};
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static const DWORD l_dwRegMapMax = sizeof(l_rgRegMap) / sizeof(RegMap);
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static const LPCTSTR l_szrgProvMap[]
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= {
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NULL, // Zero value
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SCARD_REG_PPV,
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SCARD_REG_CSP
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};
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static const DWORD l_dwProvMapMax = sizeof(l_szrgProvMap) / sizeof(LPCTSTR);
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static BOOL
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ListKnownKeys(
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IN DWORD dwScope,
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OUT CBuffer &bfKeys,
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IN LPCTSTR szUserList,
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IN LPCTSTR szSystemList = NULL);
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static void
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FindKey(
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IN DWORD dwScope,
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IN LPCTSTR szKey,
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OUT CRegistry ®Key,
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IN LPCTSTR szUserList,
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IN LPCTSTR szSystemList = NULL);
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//
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////////////////////////////////////////////////////////////////////////////////
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//
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// Calais Database Query Services
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//
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// These services all are oriented towards reading the Calais database.
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//
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/*++
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ListReaderGroups:
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This service provides the list of named card reader groups that have
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previously been defined to the system.
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Arguments:
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dwScope supplies an indicator of the scope of the operation. Possible
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values are:
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SCARD_SCOPE_USER - The current user's definitions are used.
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SCARD_SCOPE_TERMINAL - The terminal's definitions are used.
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SCARD_SCOPE_SYSTEM - The system's definitions are used.
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For V1, this value is ignored, and assumed to be SCARD_SCOPE_SYSTEM.
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bfGroups receives a multi-string listing the reader groups defined within
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the supplied scope.
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Return Value:
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None.
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Author:
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Doug Barlow (dbarlow) 10/23/1996
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--*/
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void
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ListReaderGroups(
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IN DWORD dwScope,
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OUT CBuffer &bfGroups)
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{
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CBuffer bfReaders;
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CRegistry regReader;
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LPCTSTR szReader, mszGroups;
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CBuffer bfTmp;
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DWORD cchGroups;
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ListKnownKeys(dwScope, bfReaders, SCARD_REG_READERS);
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for (szReader = FirstString(bfReaders);
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NULL != szReader;
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szReader = NextString(szReader))
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{
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try
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{
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FindKey(dwScope, szReader, regReader, SCARD_REG_READERS);
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mszGroups = regReader.GetMultiStringValue(SCARD_REG_GROUPS);
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cchGroups = regReader.GetValueLength() / sizeof(TCHAR);
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while (0 == mszGroups[cchGroups - 1])
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cchGroups -= 1;
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bfTmp.Append(
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(LPBYTE)mszGroups,
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cchGroups * sizeof(TCHAR));
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bfTmp.Append((LPBYTE)TEXT("\000"), sizeof(TCHAR));
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}
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catch (...) {}
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}
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//
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// Sort the list, and remove duplicates.
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//
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bfTmp.Append((LPCBYTE)TEXT("\000"), 2 * sizeof(TCHAR));
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MStringSort(bfTmp, bfGroups);
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}
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/*++
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ListReaders:
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This service provides the list of readers within a set of named reader
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groups, eliminating duplicates. The caller supplies a multistring listing
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the name of a set of pre-defined group of readers, and receives the list of
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smartcard readers within the named groups. Unrecognized group names are
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ignored.
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Arguments:
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dwScope supplies an indicator of the scope of the operation. Possible
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values are:
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SCARD_SCOPE_USER - The current user's definitions are used.
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SCARD_SCOPE_TERMINAL - The terminal's definitions are used.
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SCARD_SCOPE_SYSTEM - The system's definitions are used.
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mszGroups supplies the names of the reader groups defined to the system, as
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a multi-string. If this parameter is null, all readers are returned.
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bfReaders receives a multi-string listing the card readers within the
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supplied reader groups.
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Return Value:
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None.
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Author:
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Doug Barlow (dbarlow) 10/23/1996
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--*/
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void
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ListReaders(
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IN DWORD dwScope,
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IN LPCTSTR mszGroups,
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OUT CBuffer &bfReaders)
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{
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CRegistry regReader;
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LPCTSTR szReader, mszRdrGroups;
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CBuffer bfRdrs, bfCmn;
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DWORD dwCmnCount;
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dwCmnCount = MStringCommon(mszGroups, SCARD_ALL_READERS, bfCmn);
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if (0 == dwCmnCount)
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{
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if ((NULL == mszGroups) || (0 == *mszGroups))
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mszGroups = SCARD_DEFAULT_READERS;
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bfReaders.Reset();
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ListKnownKeys(dwScope, bfRdrs, SCARD_REG_READERS);
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for (szReader = FirstString(bfRdrs);
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NULL != szReader;
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szReader = NextString(szReader))
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{
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try
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{
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FindKey(dwScope, szReader, regReader, SCARD_REG_READERS);
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mszRdrGroups = regReader.GetMultiStringValue(SCARD_REG_GROUPS);
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dwCmnCount = MStringCommon(mszGroups, mszRdrGroups, bfCmn);
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if (0 < dwCmnCount)
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bfReaders.Append(
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(LPCBYTE)szReader,
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(lstrlen(szReader) + 1) * sizeof(TCHAR));
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}
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catch (...) {}
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}
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bfReaders.Append((LPBYTE)TEXT("\000"), 2 * sizeof(TCHAR));
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bfReaders.Resize(MStrLen((LPCTSTR)bfReaders.Access()), TRUE);
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}
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else
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ListKnownKeys(dwScope, bfReaders, SCARD_REG_READERS);
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}
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/*++
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ListReaderNames:
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This routine returns the list of names corresponding to a given reader
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device.
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Arguments:
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dwScope supplies an indicator of the scope of the operation. Possible
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values are:
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SCARD_SCOPE_USER - The current user's definitions are used.
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SCARD_SCOPE_TERMINAL - The terminal's definitions are used.
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SCARD_SCOPE_SYSTEM - The system's definitions are used.
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For V1, this value is ignored, and assumed to be SCARD_SCOPE_SYSTEM.
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szDevice supplies the reader device name.
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bfNames receives a multistring of the names given to that device, if any.
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Return Value:
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None
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Throws:
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Errors as DWORD status codes
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Author:
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Doug Barlow (dbarlow) 2/13/1997
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--*/
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void
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ListReaderNames(
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IN DWORD dwScope,
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IN LPCTSTR szDevice,
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OUT CBuffer &bfNames)
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{
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CRegistry regReader;
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LPCTSTR szReader, szDev;
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CBuffer bfRdrs;
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bfNames.Reset();
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ListKnownKeys(dwScope, bfRdrs, SCARD_REG_READERS);
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for (szReader = FirstString(bfRdrs);
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NULL != szReader;
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szReader = NextString(szReader))
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{
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try
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{
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FindKey(dwScope, szReader, regReader, SCARD_REG_READERS);
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szDev = regReader.GetStringValue(SCARD_REG_DEVICE);
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if (0 == lstrcmpi(szDev, szDevice))
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MStrAdd(bfNames, szReader);
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}
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catch (...) {}
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}
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}
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/*++
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ListCards:
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This service provides a list of named cards previously introduced to the
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system by this user which match an optionally supplied ATR string and/or
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supply a set of given interfaces.
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Arguments:
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dwScope supplies an indicator of the scope of the operation. Possible
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values are:
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SCARD_SCOPE_USER - The current user's definitions are used.
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SCARD_SCOPE_TERMINAL - The terminal's definitions are used.
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SCARD_SCOPE_SYSTEM - The system's definitions are used.
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pbAtr supplies the address of an ATR string to compare to known cards, or
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NULL if all card names are to be returned.
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rgguidInterfaces supplies an array of GUIDs, or the value NULL. When an
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array is supplied, a card name will be returned only if this set of
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GUIDs is a (possibly improper) subset of the set of GUIDs supported by
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the card.
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cguidInterfaceCount supplies the number of entries in the rgguidInterfaces
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array. If rgguidInterfaces is NULL, then this value is ignored.
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bfCards receives a multi-string listing the smartcards introduced to the
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system by this user which match the supplied ATR string.
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Return Value:
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None
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Author:
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Doug Barlow (dbarlow) 10/23/1996
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--*/
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void
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ListCards(
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DWORD dwScope,
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IN LPCBYTE pbAtr,
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IN LPCGUID rgquidInterfaces,
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IN DWORD cguidInterfaceCount,
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OUT CBuffer &bfCards)
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{
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CRegistry regCard;
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LPCTSTR szCard;
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CBuffer bfCardAtr;
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CBuffer bfCardList;
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bfCards.Reset();
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ListKnownKeys(dwScope, bfCardList, SCARD_REG_CARDS, SCARD_REG_TEMPLATES);
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for (szCard = FirstString(bfCardList);
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NULL != szCard;
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szCard = NextString(szCard))
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{
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try
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{
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FindKey(
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dwScope,
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szCard,
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regCard,
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SCARD_REG_CARDS,
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SCARD_REG_TEMPLATES);
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//
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// Does this card match the supplied ATR?
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//
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if ((NULL != pbAtr) && (0 != *pbAtr))
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{
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LPCBYTE pbCardAtr, pbCardMask;
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DWORD cbCardAtr, cbCardMask;
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pbCardAtr = regCard.GetBinaryValue(
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SCARD_REG_ATR,
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&cbCardAtr);
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bfCardAtr.Set(pbCardAtr, cbCardAtr);
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try
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{
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pbCardMask = regCard.GetBinaryValue(
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SCARD_REG_ATRMASK,
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&cbCardMask);
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if (cbCardAtr != cbCardMask)
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continue; // Invalid ATR/Mask combination.
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}
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catch (...)
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{
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pbCardMask = NULL; // No mask.
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}
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if (!AtrCompare(pbAtr, bfCardAtr, pbCardMask, cbCardAtr))
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continue; // ATRs invalid or don't match.
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}
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//
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// Does this card support the given interfaces?
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//
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if ((NULL != rgquidInterfaces) && (0 < cguidInterfaceCount))
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{
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DWORD cguidCrd;
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DWORD ix, jx;
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BOOL fAllInterfacesFound = TRUE;
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LPCGUID rgCrdInfs = (LPCGUID)regCard.GetBinaryValue(
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SCARD_REG_GUIDS,
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&cguidCrd);
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if ((0 != (cguidCrd % sizeof(GUID)))
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|| (0 == cguidCrd))
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continue; // Invalid GUID list.
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cguidCrd /= sizeof(GUID);
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for (ix = 0; ix < cguidInterfaceCount; ix += 1)
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{
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for (jx = 0; jx < cguidCrd; jx += 1)
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{
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if (0 == MemCompare(
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(LPCBYTE)&rgCrdInfs[jx],
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(LPCBYTE)&rgquidInterfaces[ix],
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sizeof(GUID)))
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break;
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}
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if (jx == cguidCrd)
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{
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fAllInterfacesFound = FALSE; // Unsupported interface
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break;
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}
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}
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if (!fAllInterfacesFound)
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continue;
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}
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//
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// This card passes all the tests -- Include it.
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//
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MStrAdd(bfCards, szCard);
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}
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catch (...) {}
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}
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if (0 == bfCards.Length())
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bfCards.Set((LPCBYTE)TEXT("\000"), 2 * sizeof(TCHAR));
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}
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/*++
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GetCardTypeProviderName:
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This routine returns the value of a given Provider Name, by Id number, for
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the identified card type.
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Arguments:
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dwScope supplies an indicator of the scope of the operation. Possible
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values are:
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SCARD_SCOPE_USER - The current user's definitions are used.
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SCARD_SCOPE_TERMINAL - The terminal's definitions are used.
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SCARD_SCOPE_SYSTEM - The system's definitions are used.
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szCardName supplies the name of the card type with which this provider name
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is associated.
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dwProviderId supplies the identifier for the provider associated with this
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card type. Possible values are:
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SCARD_PROVIDER_SSP - The SSP identifier, as a GUID string.
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SCARD_PROVIDER_CSP - The CSP name.
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Other values < 0x80000000 are reserved for use by Microsoft. Values
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over 0x80000000 are available for use by the smart card vendors, and
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are card-specific.
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bfProvider receives the string identifying the provider.
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Return Value:
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None
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|
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Throws:
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|
|
Errors as DWORD status codes
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|
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Author:
|
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|
|
Doug Barlow (dbarlow) 1/19/1998
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|
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--*/
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|
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void
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GetCardTypeProviderName(
|
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IN DWORD dwScope,
|
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IN LPCTSTR szCardName,
|
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IN DWORD dwProviderId,
|
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OUT CBuffer &bfProvider)
|
|
{
|
|
LPCTSTR szProvValue;
|
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TCHAR szNumeric[36];
|
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CRegistry regCard;
|
|
|
|
|
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//
|
|
// Find the Card definition closest to the caller.
|
|
//
|
|
|
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FindKey(
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dwScope,
|
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szCardName,
|
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regCard,
|
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SCARD_REG_CARDS,
|
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SCARD_REG_TEMPLATES);
|
|
|
|
|
|
//
|
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// Derive the Provider Value Name.
|
|
//
|
|
|
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if (dwProviderId < l_dwProvMapMax)
|
|
{
|
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szProvValue = l_szrgProvMap[dwProviderId];
|
|
if (NULL == szProvValue)
|
|
throw (DWORD)SCARD_E_INVALID_PARAMETER;
|
|
}
|
|
else if (0x80000000 <= dwProviderId)
|
|
{
|
|
_ultot(dwProviderId, szNumeric, 16);
|
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szProvValue = szNumeric;
|
|
}
|
|
else
|
|
throw (DWORD)SCARD_E_INVALID_PARAMETER;
|
|
|
|
|
|
//
|
|
// Read the provider value.
|
|
//
|
|
|
|
switch (dwProviderId)
|
|
{
|
|
case 1: // SCARD_PROVIDER_SSP
|
|
{
|
|
CBuffer bfGuid(sizeof(GUID));
|
|
|
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bfProvider.Presize(40 * sizeof(TCHAR));
|
|
regCard.GetValue(szProvValue, bfGuid);
|
|
StringFromGuid(
|
|
(LPCGUID)bfGuid.Access(),
|
|
(LPTSTR)bfProvider.Access());
|
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bfProvider.Resize(
|
|
(lstrlen((LPCTSTR)bfProvider.Access()) + 1) * sizeof(TCHAR),
|
|
TRUE);
|
|
break;
|
|
}
|
|
default:
|
|
regCard.GetValue(szProvValue, bfProvider);
|
|
}
|
|
}
|
|
|
|
|
|
/*++
|
|
|
|
GetReaderInfo:
|
|
|
|
This routine returns all stored information regarding a given reader.
|
|
|
|
Arguments:
|
|
|
|
dwScope supplies an indicator of the scope of the operation. Possible
|
|
values are:
|
|
|
|
SCARD_SCOPE_USER - The current user's definitions are used.
|
|
SCARD_SCOPE_TERMINAL - The terminal's definitions are used.
|
|
SCARD_SCOPE_SYSTEM - The system's definitions are used.
|
|
|
|
szReader supplies the name of the reader of which info is to be extracted.
|
|
|
|
pbfGroups receives the list of groups as a multistring.
|
|
|
|
pbfDevice receives the device name.
|
|
|
|
Return Value:
|
|
|
|
TRUE - Reader found
|
|
FALSE - Reader not found
|
|
|
|
Author:
|
|
|
|
Doug Barlow (dbarlow) 12/2/1996
|
|
|
|
--*/
|
|
|
|
BOOL
|
|
GetReaderInfo(
|
|
IN DWORD dwScope,
|
|
IN LPCTSTR szReader,
|
|
OUT CBuffer *pbfGroups,
|
|
OUT CBuffer *pbfDevice)
|
|
{
|
|
CRegistry regReader;
|
|
|
|
|
|
//
|
|
// Find the reader definition closest to the caller.
|
|
//
|
|
|
|
try
|
|
{
|
|
FindKey(dwScope, szReader, regReader, SCARD_REG_READERS);
|
|
}
|
|
catch (...)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
//
|
|
// Look up all it's values.
|
|
//
|
|
|
|
if (NULL != pbfDevice)
|
|
{
|
|
// Device name
|
|
try
|
|
{
|
|
regReader.GetValue(SCARD_REG_DEVICE, *pbfDevice);
|
|
}
|
|
catch (...)
|
|
{
|
|
pbfDevice->Reset();
|
|
}
|
|
}
|
|
|
|
if (NULL != pbfGroups)
|
|
{
|
|
// Group list
|
|
try
|
|
{
|
|
regReader.GetValue(SCARD_REG_GROUPS, *pbfGroups);
|
|
}
|
|
catch (...)
|
|
{
|
|
pbfGroups->Reset();
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/*++
|
|
|
|
GetCardInfo:
|
|
|
|
This routine finds the given card under the given scope, and returns all
|
|
information associated with it.
|
|
|
|
Arguments:
|
|
|
|
dwScope supplies an indicator of the scope of the operation. Possible
|
|
values are:
|
|
|
|
SCARD_SCOPE_USER - The current user's definitions are used.
|
|
SCARD_SCOPE_TERMINAL - The terminal's definitions are used.
|
|
SCARD_SCOPE_SYSTEM - The system's definitions are used.
|
|
|
|
szCard supplies the name of the card for which info is to be extracted.
|
|
|
|
pbfAtr receives the ATR string of the given card. This parameter may be
|
|
NULL if the ATR is not desired.
|
|
|
|
pbfAtrMask receives the ATR mask of the given card, if any. This parameter
|
|
may be NULL if the value is not desired.
|
|
|
|
pbfInterfaces receives the list of interfaces as an array of GUIDs for the
|
|
given card, if any. This parameter may be NULL if the value is not
|
|
desired.
|
|
|
|
pbfProvider receives the Primary Provider of the given card, if any. This
|
|
parameter may be NULL if the value is not desired.
|
|
|
|
Return Value:
|
|
|
|
TRUE - The card was found, the returned data is valid.
|
|
FALSE - The supplied card was not found.
|
|
|
|
Throws:
|
|
|
|
None
|
|
|
|
Author:
|
|
|
|
Doug Barlow (dbarlow) 12/3/1996
|
|
|
|
--*/
|
|
|
|
BOOL
|
|
GetCardInfo(
|
|
IN DWORD dwScope,
|
|
IN LPCTSTR szCard,
|
|
OUT CBuffer *pbfAtr,
|
|
OUT CBuffer *pbfAtrMask,
|
|
OUT CBuffer *pbfInterfaces,
|
|
OUT CBuffer *pbfProvider)
|
|
{
|
|
CRegistry regCard;
|
|
|
|
|
|
//
|
|
// Find the Card definition closest to the caller.
|
|
//
|
|
|
|
try
|
|
{
|
|
FindKey(
|
|
dwScope,
|
|
szCard,
|
|
regCard,
|
|
SCARD_REG_CARDS,
|
|
SCARD_REG_TEMPLATES);
|
|
}
|
|
catch (...)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
//
|
|
// Look up all it's values.
|
|
//
|
|
|
|
if (NULL != pbfAtr)
|
|
{
|
|
// Card ATR String
|
|
try
|
|
{
|
|
regCard.GetValue(SCARD_REG_ATR, *pbfAtr);
|
|
}
|
|
catch (...)
|
|
{
|
|
pbfAtr->Reset();
|
|
}
|
|
}
|
|
|
|
if (NULL != pbfAtrMask)
|
|
{
|
|
// Card ATR Comparison Mask
|
|
try
|
|
{
|
|
regCard.GetValue(SCARD_REG_ATRMASK, *pbfAtrMask);
|
|
}
|
|
catch (...)
|
|
{
|
|
pbfAtrMask->Reset();
|
|
}
|
|
}
|
|
|
|
if (NULL != pbfInterfaces)
|
|
{
|
|
// Supported Interface List
|
|
try
|
|
{
|
|
regCard.GetValue(SCARD_REG_GUIDS, *pbfInterfaces);
|
|
}
|
|
catch (...)
|
|
{
|
|
pbfInterfaces->Reset();
|
|
}
|
|
}
|
|
|
|
if (NULL != pbfProvider)
|
|
{
|
|
// Card Primary Provider
|
|
try
|
|
{
|
|
regCard.GetValue(SCARD_REG_PPV, *pbfProvider);
|
|
}
|
|
catch (...)
|
|
{
|
|
pbfProvider->Reset();
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
#ifdef ENABLE_SCARD_TEMPLATES
|
|
/*++
|
|
|
|
ListCardTypeTemplates:
|
|
|
|
This routine searches the template database looking for previously defined
|
|
smart card templates against which the given card ATR matches. If the ATR
|
|
parameter is NULL, it returns a list of all templates.
|
|
|
|
Arguments:
|
|
|
|
dwScope supplies an indicator of the scope of the operation. Possible
|
|
values are:
|
|
|
|
SCARD_SCOPE_USER - The current user's definitions are used.
|
|
SCARD_SCOPE_TERMINAL - The terminal's definitions are used.
|
|
SCARD_SCOPE_SYSTEM - The system's definitions are used.
|
|
|
|
pbAtr supplies the ATR of a card to be matched against the known templates.
|
|
|
|
bfTemplates receives a list of matching template names, as a multistring.
|
|
|
|
Return Value:
|
|
|
|
TRUE - At least one template was found.
|
|
FALSE - No matching templates were found.
|
|
|
|
Throws:
|
|
|
|
Errors
|
|
|
|
Author:
|
|
|
|
Doug Barlow (dbarlow) 1/16/1998
|
|
|
|
--*/
|
|
|
|
BOOL
|
|
ListCardTypeTemplates(
|
|
IN DWORD dwScope,
|
|
IN LPCBYTE pbAtr,
|
|
OUT CBuffer &bfTemplates)
|
|
{
|
|
CRegistry regCard;
|
|
LPCTSTR szCard;
|
|
CBuffer bfCardAtr;
|
|
CBuffer bfCardList;
|
|
|
|
bfTemplates.Reset();
|
|
ListKnownKeys(dwScope, bfCardList, SCARD_REG_TEMPLATES);
|
|
for (szCard = FirstString(bfCardList);
|
|
NULL != szCard;
|
|
szCard = NextString(szCard))
|
|
{
|
|
try
|
|
{
|
|
FindKey(dwScope, szCard, regCard, SCARD_REG_TEMPLATES);
|
|
|
|
|
|
//
|
|
// Does this card match the supplied ATR?
|
|
//
|
|
|
|
if ((NULL != pbAtr) && (0 != *pbAtr))
|
|
{
|
|
LPCBYTE pbCardAtr, pbCardMask;
|
|
DWORD cbCardAtr, cbCardMask;
|
|
|
|
pbCardAtr = regCard.GetBinaryValue(
|
|
SCARD_REG_ATR,
|
|
&cbCardAtr);
|
|
bfCardAtr.Set(pbCardAtr, cbCardAtr);
|
|
try
|
|
{
|
|
pbCardMask = regCard.GetBinaryValue(
|
|
SCARD_REG_ATRMASK,
|
|
&cbCardMask);
|
|
if (cbCardAtr != cbCardMask)
|
|
continue; // Invalid ATR/Mask combination.
|
|
}
|
|
catch (...)
|
|
{
|
|
pbCardMask = NULL; // No mask.
|
|
}
|
|
|
|
if (!AtrCompare(pbAtr, bfCardAtr, pbCardMask, cbCardAtr))
|
|
continue; // ATRs invalid or don't match.
|
|
}
|
|
|
|
|
|
//
|
|
// This card passes all the tests -- Include it.
|
|
//
|
|
|
|
MStrAdd(bfTemplates, szCard);
|
|
}
|
|
catch (...) {}
|
|
}
|
|
if (0 == bfTemplates.Length())
|
|
{
|
|
bfTemplates.Set((LPCBYTE)TEXT("\000"), 2 * sizeof(TCHAR));
|
|
return FALSE;
|
|
}
|
|
else
|
|
return TRUE;
|
|
}
|
|
#endif // ENABLE_SCARD_TEMPLATES
|
|
|
|
|
|
//
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Support Routines
|
|
//
|
|
|
|
/*++
|
|
|
|
ListKnownKeys:
|
|
|
|
This routine lists all known keys of a given type within the current
|
|
caller's scope.
|
|
|
|
Arguments:
|
|
|
|
dwScope supplies an indicator of the scope of the operation. Possible
|
|
values are:
|
|
|
|
SCARD_SCOPE_USER - The current user's definitions are used.
|
|
SCARD_SCOPE_TERMINAL - The terminal's definitions are used.
|
|
SCARD_SCOPE_SYSTEM - The system's definitions are used.
|
|
|
|
bfKeys receives a multistring of existing key names, sorted and stripped
|
|
of duplicates.
|
|
|
|
szUserList supplies the primary registry path from which key names are to
|
|
be returned.
|
|
|
|
szSystemList supplies an optional secondary path from which key names can
|
|
be returned if the caller is running at system scope.
|
|
|
|
Return Value:
|
|
|
|
TRUE - At least one was found
|
|
FALSE - None were found.
|
|
|
|
Throws:
|
|
|
|
Errors are thrown as DWORD status codes.
|
|
|
|
Author:
|
|
|
|
Doug Barlow (dbarlow) 1/22/1998
|
|
|
|
--*/
|
|
|
|
static BOOL
|
|
ListKnownKeys(
|
|
IN DWORD dwScope,
|
|
OUT CBuffer &bfKeys,
|
|
IN LPCTSTR szUserList,
|
|
IN LPCTSTR szSystemList)
|
|
{
|
|
DWORD dwSpace, dwIndex, dwCount;
|
|
CRegistry regScopeKey;
|
|
CBuffer bfMyList;
|
|
LPCTSTR rgszLists[2];
|
|
|
|
|
|
//
|
|
// Loop through introduced space, then if appropriate, template space.
|
|
//
|
|
|
|
rgszLists[0] = szUserList;
|
|
rgszLists[1] = szSystemList;
|
|
for (dwSpace = 0; 2 > dwSpace; dwSpace += 1)
|
|
{
|
|
if (NULL == rgszLists[dwSpace])
|
|
continue;
|
|
|
|
|
|
//
|
|
// Loop through all the possible scopes, from highest to lowest.
|
|
//
|
|
|
|
for (dwIndex = 0; l_dwRegMapMax > dwIndex; dwIndex += 1)
|
|
{
|
|
if (l_rgRegMap[dwIndex].dwScope >= dwScope)
|
|
{
|
|
|
|
//
|
|
// If the caller is under this scope, then look for existing
|
|
// Keys.
|
|
//
|
|
|
|
regScopeKey.Open(
|
|
l_rgRegMap[dwIndex].hKey,
|
|
rgszLists[dwSpace],
|
|
KEY_READ);
|
|
if (SCARD_S_SUCCESS != regScopeKey.Status(TRUE))
|
|
continue;
|
|
|
|
|
|
//
|
|
// Pull out all it's subkey names.
|
|
//
|
|
|
|
for (dwCount = 0;; dwCount += 1)
|
|
{
|
|
LPCTSTR szKey;
|
|
|
|
szKey = regScopeKey.Subkey(dwCount);
|
|
if (NULL == szKey)
|
|
break;
|
|
|
|
bfMyList.Append(
|
|
(LPBYTE)szKey,
|
|
(lstrlen(szKey) + 1) * sizeof(TCHAR));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//
|
|
// Don't go on to the system list unless we're at system scope.
|
|
//
|
|
|
|
if (SCARD_SCOPE_SYSTEM != dwScope)
|
|
break;
|
|
}
|
|
|
|
|
|
//
|
|
// Sort the list, and remove duplicates.
|
|
//
|
|
|
|
bfMyList.Append((LPBYTE)TEXT("\000"), 2 * sizeof(TCHAR));
|
|
MStringSort(bfMyList, bfKeys);
|
|
return (2 * sizeof(TCHAR) < bfKeys.Length());
|
|
}
|
|
|
|
|
|
|
|
/*++
|
|
|
|
FindKey:
|
|
|
|
This routine finds the named key closest in scope to the caller.
|
|
|
|
Arguments:
|
|
|
|
dwScope supplies an indicator of the scope of the operation. Possible
|
|
values are:
|
|
|
|
SCARD_SCOPE_USER - The current user's definitions are used.
|
|
SCARD_SCOPE_TERMINAL - The terminal's definitions are used.
|
|
SCARD_SCOPE_SYSTEM - The system's definitions are used.
|
|
|
|
szKey supplies the name of the key to be found.
|
|
|
|
regKey receives initialization to reference the named key.
|
|
|
|
szUserList supplies the primary registry path from which key names are to
|
|
be returned.
|
|
|
|
szSystemList supplies an optional secondary path from which key names can
|
|
be returned if the caller is running at system scope.
|
|
|
|
Return Value:
|
|
|
|
TRUE - The key was found.
|
|
FALSE - No such key was found.
|
|
|
|
Throws:
|
|
|
|
Errors are thrown as DWORD status codes.
|
|
|
|
Author:
|
|
|
|
Doug Barlow (dbarlow) 1/22/1998
|
|
|
|
--*/
|
|
|
|
static void
|
|
FindKey(
|
|
IN DWORD dwScope,
|
|
IN LPCTSTR szKey,
|
|
OUT CRegistry ®Key,
|
|
IN LPCTSTR szUserList,
|
|
IN LPCTSTR szSystemList)
|
|
{
|
|
DWORD dwSpace, dwIndex;
|
|
CRegistry regScopeKey;
|
|
LPCTSTR rgszLists[2];
|
|
|
|
|
|
//
|
|
// Loop through introduced space, then if appropriate, template space.
|
|
//
|
|
|
|
rgszLists[0] = szUserList;
|
|
rgszLists[1] = szSystemList;
|
|
for (dwSpace = 0; 2 > dwSpace; dwSpace += 1)
|
|
{
|
|
if (NULL == rgszLists[dwSpace])
|
|
continue;
|
|
|
|
|
|
//
|
|
// Loop through all the possible scopes, from highest to lowest.
|
|
//
|
|
|
|
for (dwIndex = 0; l_dwRegMapMax > dwIndex; dwIndex += 1)
|
|
{
|
|
if (l_rgRegMap[dwIndex].dwScope >= dwScope)
|
|
{
|
|
|
|
//
|
|
// If the caller is under this scope, then look for an
|
|
// existing Key.
|
|
//
|
|
|
|
regScopeKey.Open(
|
|
l_rgRegMap[dwIndex].hKey,
|
|
rgszLists[dwSpace],
|
|
KEY_READ);
|
|
if (SCARD_S_SUCCESS != regScopeKey.Status(TRUE))
|
|
continue;
|
|
|
|
regKey.Open(regScopeKey, szKey, KEY_READ);
|
|
if (SCARD_S_SUCCESS != regKey.Status(TRUE))
|
|
continue;
|
|
|
|
//
|
|
// We've found such a key. Return immediately.
|
|
//
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
//
|
|
// Don't go on to the system list unless we're at system scope.
|
|
//
|
|
|
|
if (SCARD_SCOPE_SYSTEM != dwScope)
|
|
break;
|
|
}
|
|
|
|
|
|
//
|
|
// We didn't find any such key.
|
|
//
|
|
|
|
throw (DWORD)ERROR_FILE_NOT_FOUND;
|
|
}
|
|
|