679 lines
20 KiB
C
679 lines
20 KiB
C
/*++
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Copyright (c) 1991-2000, Microsoft Corporation All rights reserved.
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Module Name:
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init.c
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Abstract:
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This file contains the initialization code for the NLS APIs.
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External Routines found in this file:
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NlsDllInitialize
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Revision History:
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05-31-91 JulieB Created.
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--*/
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//
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// Include Files.
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//
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#include "nls.h"
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#include "nlssafe.h"
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#include "stdio.h"
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//
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// Global Variables.
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//
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HANDLE hModule; // handle to module
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RTL_CRITICAL_SECTION gcsTblPtrs; // critical section for tbl ptrs
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UINT gAnsiCodePage; // Ansi code page value
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UINT gOemCodePage; // OEM code page value
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UINT gMacCodePage; // MAC code page value
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LCID gSystemLocale; // system locale value
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LANGID gSystemInstallLang; // system's original install language
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PLOC_HASH gpSysLocHashN; // ptr to system loc hash node
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PLOC_HASH gpInvLocHashN; // ptr to invariant loc hash node
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PCP_HASH gpACPHashN; // ptr to ACP hash node
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PCP_HASH gpOEMCPHashN; // ptr to OEMCP hash node
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PCP_HASH gpMACCPHashN; // ptr to MACCP hash node
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HANDLE hCodePageKey; // handle to System\Nls\CodePage key
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HANDLE hLocaleKey; // handle to System\Nls\Locale key
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HANDLE hAltSortsKey; // handle to Locale\Alternate Sorts key
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HANDLE hLangGroupsKey; // handle to System\Nls\Language Groups key
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PNLS_USER_INFO pNlsUserInfo; // ptr to the user info cache
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PNLS_USER_INFO pServerNlsUserInfo; // ptr to the user info cache in the csrss.exe.
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NLS_USER_INFO gProcUserInfo; // The user info cache for the process.
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// The values in this cached are updated from the content of the
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// server side cache (pNlsRegUserInfo in csrss.exe).
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// Every time when we read the cache, we will check a version count (ulCacheUpdateCount
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// field in NLS_USER_INFO) against the server-side cache (pNlsRegUserInfo) to
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// see if the process cache is still valid. The ulCacheUpdateCount will be incremented
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// and sync'ed in the server-side when SetLocaleInfo() happens or intl registry key changes.
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RTL_CRITICAL_SECTION gcsNlsProcessCache; // critical section for nls process cache
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//
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// Forward Declarations.
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//
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ULONG
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NlsServerInitialize(void);
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ULONG
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NlsProcessInitialize(void);
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void
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InitKoreanWeights(void);
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//-------------------------------------------------------------------------//
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// EXTERNAL ROUTINES //
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//-------------------------------------------------------------------------//
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////////////////////////////////////////////////////////////////////////////
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//
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// NlsDllInitialize
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//
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// DLL Entry initialization procedure for NLSAPI. This is called by
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// the base dll initialization.
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//
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// 05-31-91 JulieB Created.
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////////////////////////////////////////////////////////////////////////////
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BOOLEAN NlsDllInitialize(
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IN PVOID hMod,
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ULONG Reason,
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IN PBASE_STATIC_SERVER_DATA pBaseStaticServerData)
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{
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if (Reason == DLL_PROCESS_ATTACH)
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{
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ULONG rc;
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//
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// Save module handle for use later.
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//
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hModule = (HANDLE)hMod;
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//
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// Initialize the cached user info pointer.
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//
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pServerNlsUserInfo = &(pBaseStaticServerData->NlsUserInfo);
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pNlsUserInfo = &gProcUserInfo;
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//
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// Process attaching, so initialize tables.
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//
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rc = NlsServerInitialize();
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if (rc)
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{
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KdPrint(("NLSAPI: Could NOT initialize Server - %lx.\n", rc));
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return (FALSE);
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}
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rc = NlsProcessInitialize();
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if (rc)
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{
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KdPrint(("NLSAPI: Could NOT initialize Process - %lx.\n", rc));
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return (FALSE);
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}
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}
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//
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// Return success.
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//
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return (TRUE);
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}
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////////////////////////////////////////////////////////////////////////////
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//
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// NlsThreadCleanup
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//
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// Cleanup for thread resources when it terminates.
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//
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// 03-30-99 SamerA Created.
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////////////////////////////////////////////////////////////////////////////
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VOID NlsThreadCleanup(
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VOID)
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{
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if (NtCurrentTeb()->NlsCache)
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{
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CLOSE_REG_KEY( ((PNLS_LOCAL_CACHE)NtCurrentTeb()->NlsCache)->CurrentUserKeyHandle );
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RtlFreeHeap( RtlProcessHeap(),
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0,
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NtCurrentTeb()->NlsCache
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);
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}
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}
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//-------------------------------------------------------------------------//
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// INTERNAL ROUTINES //
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//-------------------------------------------------------------------------//
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////////////////////////////////////////////////////////////////////////////
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//
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// NlsServerInitialize
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//
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// Server initialization procedure for NLSAPI. This is the ONE-TIME
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// initialization code for the NLSAPI DLL. It simply does the calls
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// to NtCreateSection for the code pages that are currently found in the
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// system.
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//
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// 05-31-91 JulieB Created.
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////////////////////////////////////////////////////////////////////////////
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ULONG NlsServerInitialize(void)
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{
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HANDLE hSec = (HANDLE)0; // section handle
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ULONG rc;
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PPEB Peb;
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#ifndef DOSWIN32
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PIMAGE_NT_HEADERS NtHeaders;
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#endif
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Peb = NtCurrentPeb();
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//
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// MultiUser NT (Hydra). SesssionId = 0 is the console CSRSS.
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// If this is NOT the first server process, then just return success,
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// since we only want to create the object directories once.
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//
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if (Peb->SessionId != 0)
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{
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return (NO_ERROR);
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}
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#ifndef DOSWIN32
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//
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// This is to avoid being initialized again when NTSD dynlinks to
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// a server to get at its debugger extensions.
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//
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NtHeaders = RtlImageNtHeader(Peb->ImageBaseAddress);
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if (NtHeaders &&
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(NtHeaders->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_NATIVE))
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{
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return (NO_ERROR);
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}
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#endif
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//
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// Create the NLS object directory.
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//
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// Must create a separate directory off the root in order to have
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// CreateSection access on the fly.
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//
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if (rc = CreateNlsObjectDirectory())
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{
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return (rc);
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}
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//
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// The ACP, OEMCP, and Default Language files are already created
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// at boot time. The pointers to the files are stored in the PEB.
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//
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// Create the section for the following data files:
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// UNICODE
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// LOCALE
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// CTYPE
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// SORTKEY
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// SORT TABLES
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//
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// All other data files will have the sections created only as they
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// are needed.
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//
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if ((!NT_SUCCESS(rc = CsrBasepNlsCreateSection( NLS_CREATE_SECTION_UNICODE, 0, &hSec))) ||
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(!NT_SUCCESS(rc = CsrBasepNlsCreateSection( NLS_CREATE_SECTION_LOCALE, 0, &hSec))) ||
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(!NT_SUCCESS(rc = CsrBasepNlsCreateSection( NLS_CREATE_SECTION_CTYPE, 0, &hSec))) ||
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(!NT_SUCCESS(rc = CsrBasepNlsCreateSection( NLS_CREATE_SECTION_SORTKEY, 0, &hSec))) ||
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(!NT_SUCCESS(rc = CsrBasepNlsCreateSection( NLS_CREATE_SECTION_SORTTBLS, 0, &hSec))))
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{
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return (rc);
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}
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//
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// Return success.
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//
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return (NO_ERROR);
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}
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////////////////////////////////////////////////////////////////////////////
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//
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// NlsProcessInitialize
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//
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// Process initialization procedure for NLS API. This routine sets up all
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// of the tables so that they are accessable from the current process. If
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// it is unable to allocate the appropriate memory or memory map the
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// appropriate files, an error is returned.
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//
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// 05-31-91 JulieB Created.
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////////////////////////////////////////////////////////////////////////////
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ULONG NlsProcessInitialize(void)
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{
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ULONG rc;
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LPWORD pBaseAddr; // ptr to base address of section
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LCID UserLocale; // user locale id
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PLOC_HASH pUserLocHashN; // ptr to user locale hash node
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PPEB Peb;
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Peb = NtCurrentPeb();
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//
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// Initialize the critical section that protects the NLS cache for
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// this process.
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//
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if ((rc = RtlInitializeCriticalSection(&gcsNlsProcessCache)) != ERROR_SUCCESS)
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{
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return (rc);
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}
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//
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// Initialize the table pointers critical section.
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// Enter the critical section to set up the tables.
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//
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if ((rc = RtlInitializeCriticalSectionAndSpinCount(&gcsTblPtrs, 4000)) != ERROR_SUCCESS)
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{
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return (rc);
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}
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RtlEnterCriticalSection(&gcsTblPtrs);
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//
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// Allocate initial tables.
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//
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if (rc = AllocTables())
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{
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KdPrint(("AllocTables failed, rc %lx\n", rc));
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RtlLeaveCriticalSection(&gcsTblPtrs);
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return (rc);
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}
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//
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// Initialize the handles to the various registry keys to NULL.
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//
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hCodePageKey = NULL;
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hLocaleKey = NULL;
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hAltSortsKey = NULL;
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hLangGroupsKey = NULL;
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//
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// Get the ANSI code page value.
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// Create the hash node for the ACP.
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// Insert the hash node into the global CP hash table.
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//
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// At this point, the ACP table has already been mapped into
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// the process, so get the pointer from the PEB.
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//
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pBaseAddr = Peb->AnsiCodePageData;
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gAnsiCodePage = ((PCP_TABLE)(pBaseAddr + CP_HEADER))->CodePage;
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if (rc = MakeCPHashNode( gAnsiCodePage,
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pBaseAddr,
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&gpACPHashN,
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FALSE,
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NULL ))
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{
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RtlLeaveCriticalSection(&gcsTblPtrs);
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return (rc);
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}
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//
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// Get the OEM code page value.
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// Create the hash node for the OEMCP.
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// Insert the hash node into the global CP hash table.
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//
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// At this point, the OEMCP table has already been mapped into
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// the process, so get the pointer from the PEB.
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//
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pBaseAddr = Peb->OemCodePageData;
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gOemCodePage = ((PCP_TABLE)(pBaseAddr + CP_HEADER))->CodePage;
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if (gOemCodePage != gAnsiCodePage)
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{
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//
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// Oem code page is different than the Ansi code page, so
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// need to create and store the new hash node.
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//
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if (rc = MakeCPHashNode( gOemCodePage,
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pBaseAddr,
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&gpOEMCPHashN,
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FALSE,
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NULL ))
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{
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RtlLeaveCriticalSection(&gcsTblPtrs);
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return (rc);
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}
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}
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else
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{
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//
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// Oem code page is the same as the Ansi code page, so set
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// the oem cp hash node to be the same as the ansi cp hash node.
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//
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gpOEMCPHashN = gpACPHashN;
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}
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//
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// Initialize the MAC code page values to 0.
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// These values will be set the first time they are requested for use.
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//
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gMacCodePage = 0;
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gpMACCPHashN = NULL;
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//
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// Open and Map a View of the Section for UNICODE.NLS.
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// Save the pointers to the table information in the table ptrs
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// structure.
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//
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if (rc = GetUnicodeFileInfo())
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{
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KdPrint(("GetUnicodeFileInfo failed, rc %lx\n", rc));
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RtlLeaveCriticalSection(&gcsTblPtrs);
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return (rc);
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}
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//
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// Cache the system locale value.
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//
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rc = NtQueryDefaultLocale(FALSE, &gSystemLocale);
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if (!NT_SUCCESS(rc))
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{
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RtlLeaveCriticalSection(&gcsTblPtrs);
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return (rc);
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}
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//
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// Store the user locale value.
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//
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UserLocale = pNlsUserInfo->UserLocaleId;
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if (UserLocale == 0)
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{
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UserLocale = gSystemLocale;
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}
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//
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// Initialize the system install language to zero. This will only
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// be retrieved on an as need basis.
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//
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gSystemInstallLang = 0;
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//
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// Open and Map a View of the Section for LOCALE.NLS.
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// Create and insert the hash node into the global Locale hash table
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// for the system default locale.
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//
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if (rc = GetLocaleFileInfo( gSystemLocale,
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&gpSysLocHashN,
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TRUE ))
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{
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//
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// Change the system locale to be the default (English).
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//
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if (GetLocaleFileInfo( MAKELCID(NLS_DEFAULT_LANGID, SORT_DEFAULT),
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&gpSysLocHashN,
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TRUE ))
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{
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KdPrint(("Couldn't do English\n"));
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RtlLeaveCriticalSection(&gcsTblPtrs);
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return (rc);
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}
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else
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{
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//
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// Registry is corrupt, but allow the English default to
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// work. Need to reset the system default.
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//
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gSystemLocale = MAKELCID(NLS_DEFAULT_LANGID, SORT_DEFAULT);
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KdPrint(("NLSAPI: Registry is corrupt - Using Default Locale.\n"));
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}
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}
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//
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// If the user default locale is different from the system default
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// locale, then create and insert the hash node into the global
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// Locale hash table for the user default locale.
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//
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// NOTE: The System Default Locale Hash Node should be
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// created before this call.
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//
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if (UserLocale != gSystemLocale)
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{
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if (rc = GetLocaleFileInfo( UserLocale,
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&pUserLocHashN,
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TRUE ))
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{
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//
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// Change the user locale to be equal to the system default.
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//
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UserLocale = gSystemLocale;
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KdPrint(("NLSAPI: Registry is corrupt - User Locale Now Equals System Locale.\n"));
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}
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}
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//
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// Create and insert the hash node into the global Locale hash
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// table for the invariant locale.
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//
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if (rc = GetLocaleFileInfo( LOCALE_INVARIANT,
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&gpInvLocHashN,
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TRUE ))
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{
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KdPrint(("NLSAPI: Registry is corrupt - Invariant Locale Cannot Be Initialized.\n"));
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}
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//
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// Open and Map a View of the Section for SORTKEY.NLS.
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// Save the pointers to the semaphore dword and the default sortkey
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// table in the table ptrs structure.
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//
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if (rc = GetDefaultSortkeyFileInfo())
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{
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KdPrint(("NLSAPI: Initialization, GetDefaultSortkeyFileInfo failed with rc %lx.\n", rc));
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// RtlLeaveCriticalSection(&gcsTblPtrs);
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// return (rc);
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}
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//
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// Open and Map a View of the Section for SORTTBLS.NLS.
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// Save the pointers to the sort table information in the
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// table ptrs structure.
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//
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if (rc = GetDefaultSortTablesFileInfo())
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{
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RtlLeaveCriticalSection(&gcsTblPtrs);
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return (rc);
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}
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//
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// Get the language information portion of the system locale.
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//
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// NOTE: GetDefaultSortkeyFileInfo and GetDefaultSortTablesFileInfo
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// should be called before this so that the default sorting
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// tables are already initialized at the time of the call.
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//
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if (rc = GetLanguageFileInfo( gSystemLocale,
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&gpSysLocHashN,
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FALSE,
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0 ))
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{
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RtlLeaveCriticalSection(&gcsTblPtrs);
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return (rc);
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}
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//
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// Get the language information portion of the invariant locale. We
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// use the default locale (US English).
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//
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if (rc = GetLanguageFileInfo( MAKELCID(NLS_DEFAULT_LANGID, SORT_DEFAULT),
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&gpInvLocHashN,
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FALSE,
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0 ))
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{
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RtlLeaveCriticalSection(&gcsTblPtrs);
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return (rc);
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}
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//
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// If the user default is different from the system default,
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// get the language information portion of the user default locale.
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//
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// NOTE: GetDefaultSortkeyFileInfo and GetDefaultSortTablesFileInfo
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// should be called before this so that the default sorting
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// tables are already initialized at the time of the call.
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//
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if (gSystemLocale != UserLocale)
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{
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if (rc = MakeLangHashNode( UserLocale,
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NULL,
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&pUserLocHashN,
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FALSE ))
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{
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RtlLeaveCriticalSection(&gcsTblPtrs);
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return (rc);
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}
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}
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//
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// Initialize the Korean SMWeight values.
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//
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InitKoreanWeights();
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//
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// Leave the critical section.
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//
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RtlLeaveCriticalSection(&gcsTblPtrs);
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RtlEnterCriticalSection(&gcsNlsProcessCache);
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//
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// Fill up the cache from the cache in csrss.exe so that we have a fresh copy of cache
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// values. We will retrieve a copy of ulCacheUpdateCount so that we can check
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// if the cache values are no longer valid after they are retrieved here.
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//
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// Enter a critical section gcsNlsProcessCache to provide synchronization between
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// threads since we are updating the process-wide cache.
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//
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if (!NT_SUCCESS(CsrBasepNlsGetUserInfo(pNlsUserInfo, sizeof(NLS_USER_INFO))))
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{
|
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RtlLeaveCriticalSection(&gcsNlsProcessCache);
|
|
return (ERROR_INVALID_FUNCTION);
|
|
}
|
|
RtlLeaveCriticalSection(&gcsNlsProcessCache);
|
|
|
|
//
|
|
// Return success.
|
|
//
|
|
return (NO_ERROR);
|
|
}
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// InitKoreanWeights
|
|
//
|
|
// Creates the SMWeight array with the IDEOGRAPH script member sorting
|
|
// before all other script members.
|
|
//
|
|
// NOTE: This function assumes we're in a critical section.
|
|
//
|
|
// 05-31-91 JulieB Created.
|
|
////////////////////////////////////////////////////////////////////////////
|
|
|
|
void InitKoreanWeights()
|
|
{
|
|
DWORD ctr; // loop counter
|
|
BYTE NewScript; // new script to store
|
|
LPBYTE pSMWeight = pTblPtrs->SMWeight; // ptr to script member weights
|
|
PMULTI_WT pMulti; // ptr to multi weight
|
|
|
|
|
|
//
|
|
// Set the 0 to FIRST_SCRIPT of script structure to its default
|
|
// value.
|
|
//
|
|
RtlZeroMemory(pSMWeight, NUM_SM);
|
|
for (ctr = 1; ctr < FIRST_SCRIPT; ctr++)
|
|
{
|
|
pSMWeight[ctr] = (BYTE)ctr;
|
|
}
|
|
|
|
//
|
|
// Save the order in the SMWeight array.
|
|
//
|
|
NewScript = FIRST_SCRIPT;
|
|
pSMWeight[IDEOGRAPH] = NewScript;
|
|
NewScript++;
|
|
|
|
//
|
|
// See if the script is part of a multiple weights script.
|
|
//
|
|
pMulti = pTblPtrs->pMultiWeight;
|
|
for (ctr = pTblPtrs->NumMultiWeight; ctr > 0; ctr--, pMulti++)
|
|
{
|
|
if (pMulti->FirstSM == IDEOGRAPH)
|
|
{
|
|
//
|
|
// Part of multiple weight, so must move entire range
|
|
// by setting each value in range to NewScript and
|
|
// then incrementing NewScript.
|
|
//
|
|
// NOTE: May use 'ctr' here since it ALWAYS breaks
|
|
// out of outer for loop.
|
|
//
|
|
for (ctr = 1; ctr < pMulti->NumSM; ctr++)
|
|
{
|
|
pSMWeight[IDEOGRAPH + ctr] = NewScript;
|
|
NewScript++;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Must set each script member that has not yet been reset to its
|
|
// new order.
|
|
//
|
|
// The default ordering is to assign:
|
|
// Order = Script Member Value
|
|
//
|
|
// Therefore, can simply set each zero entry in order to the end
|
|
// of the array to the next 'NewScript' value.
|
|
//
|
|
for (ctr = FIRST_SCRIPT; ctr < NUM_SM; ctr++)
|
|
{
|
|
//
|
|
// If it's a zero value, set it to the next sorting order value.
|
|
//
|
|
if (pSMWeight[ctr] == 0)
|
|
{
|
|
pSMWeight[ctr] = NewScript;
|
|
NewScript++;
|
|
}
|
|
}
|
|
}
|