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/*
* tclWinTest.c --
*
* Contains commands for platform specific tests on Windows.
*
* Copyright (c) 1996 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* RCS: @(#) $Id: tclWinTest.c,v 1.9.2.3 2005/12/02 18:43:11 dgp Exp $
* RCS: @(#) $Id: tclWinTest.c,v 1.9.2.4 2006/04/28 16:10:51 dgp Exp $
*/
#define USE_COMPAT_CONST
#include "tclInt.h"
/*
* For TestplatformChmod on Windows
*/
#ifdef __WIN32__
#include <aclapi.h>
#endif
/*
* MinGW 3.4.2 does not define this.
*/
#ifndef INHERITED_ACE
#define INHERITED_ACE (0x10)
#endif
/*
* Forward declarations of functions defined later in this file:
*/
int TclplatformtestInit(Tcl_Interp *interp);
static int TesteventloopCmd(ClientData dummy, Tcl_Interp *interp,
int argc, char **argv);
int argc, CONST84 char **argv);
static int TestvolumetypeCmd(ClientData dummy,
Tcl_Interp *interp, int objc,
Tcl_Obj *CONST objv[]);
static int TestwinclockCmd(ClientData dummy, Tcl_Interp* interp,
int objc, Tcl_Obj *CONST objv[]);
static int TestwinsleepCmd(ClientData dummy, Tcl_Interp* interp,
int objc, Tcl_Obj *CONST objv[]);
static Tcl_ObjCmdProc TestExceptionCmd;
static int TestwincpuidCmd(ClientData dummy, Tcl_Interp* interp,
int objc, Tcl_Obj *CONST objv[]);
static int TestplatformChmod(CONST char *nativePath, int pmode);
static int TestchmodCmd(ClientData dummy,
Tcl_Interp *interp, int argc, CONST84 char **argv);
/*
*----------------------------------------------------------------------
*
* TclplatformtestInit --
*
* Defines commands that test platform specific functionality for Windows
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TclplatformtestInit(
Tcl_Interp *interp) /* Interpreter to add commands to. */
{
/*
* Add commands for platform specific tests for Windows here.
*/
Tcl_CreateCommand(interp, "testchmod", TestchmodCmd,
(ClientData) 0, NULL);
Tcl_CreateCommand(interp, "testeventloop", TesteventloopCmd,
(ClientData) 0, NULL);
Tcl_CreateObjCommand(interp, "testvolumetype", TestvolumetypeCmd,
(ClientData) 0, NULL);
Tcl_CreateObjCommand(interp, "testwinclock", TestwinclockCmd,
(ClientData) 0, NULL);
Tcl_CreateObjCommand(interp, "testwincpuid", TestwincpuidCmd,
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/* SMASH! */
RaiseException(exceptions[cmd], EXCEPTION_NONCONTINUABLE, 0, NULL);
/* NOTREACHED */
return TCL_OK;
}
static int
TestplatformChmod(CONST char *nativePath, int pmode)
{
SID_IDENTIFIER_AUTHORITY userSidAuthority =
{ SECURITY_WORLD_SID_AUTHORITY };
typedef DWORD (WINAPI *getSidLengthRequiredDef) ( UCHAR );
typedef BOOL (WINAPI *initializeSidDef) ( PSID,
PSID_IDENTIFIER_AUTHORITY, BYTE );
typedef PDWORD (WINAPI *getSidSubAuthorityDef) ( PSID, DWORD );
static getSidLengthRequiredDef getSidLengthRequiredProc;
static initializeSidDef initializeSidProc;
static getSidSubAuthorityDef getSidSubAuthorityProc;
static const SECURITY_INFORMATION infoBits = OWNER_SECURITY_INFORMATION
| GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION;
static const DWORD readOnlyMask = FILE_DELETE_CHILD | FILE_ADD_FILE
| FILE_ADD_SUBDIRECTORY | FILE_WRITE_EA | FILE_APPEND_DATA
| FILE_WRITE_DATA | DELETE;
BYTE *secDesc = 0;
DWORD secDescLen;
const BOOL set_readOnly = !(pmode & 0222);
BOOL acl_readOnly_found = FALSE;
ACL_SIZE_INFORMATION ACLSize;
BOOL curAclPresent, curAclDefaulted;
PACL curAcl;
PACL newAcl = 0;
DWORD newAclSize;
WORD j;
SID *userSid = 0;
TCHAR *userDomain = 0;
DWORD attr;
int res = 0;
/*
* One time initialization, dynamically load Windows NT features
*/
typedef DWORD (WINAPI *setNamedSecurityInfoADef)( IN LPSTR,
IN SE_OBJECT_TYPE, IN SECURITY_INFORMATION, IN PSID, IN PSID,
IN PACL, IN PACL );
typedef BOOL (WINAPI *getAceDef) (PACL, DWORD, LPVOID *);
typedef BOOL (WINAPI *addAceDef) ( PACL, DWORD, DWORD, LPVOID, DWORD );
typedef BOOL (WINAPI *equalSidDef) ( PSID, PSID );
typedef BOOL (WINAPI *addAccessDeniedAceDef) ( PACL, DWORD, DWORD, PSID );
typedef BOOL (WINAPI *initializeAclDef) ( PACL, DWORD, DWORD );
typedef DWORD (WINAPI *getLengthSidDef) ( PSID );
typedef BOOL (WINAPI *getAclInformationDef) (PACL, LPVOID, DWORD,
ACL_INFORMATION_CLASS );
typedef BOOL (WINAPI *getSecurityDescriptorDaclDef) (PSECURITY_DESCRIPTOR,
LPBOOL, PACL *, LPBOOL );
typedef BOOL (WINAPI *lookupAccountNameADef) ( LPCSTR, LPCSTR, PSID,
PDWORD, LPSTR, LPDWORD, PSID_NAME_USE );
typedef BOOL (WINAPI *getFileSecurityADef) ( LPCSTR, SECURITY_INFORMATION,
PSECURITY_DESCRIPTOR, DWORD, LPDWORD );
static setNamedSecurityInfoADef setNamedSecurityInfoProc;
static getAceDef getAceProc;
static addAceDef addAceProc;
static equalSidDef equalSidProc;
static addAccessDeniedAceDef addAccessDeniedAceProc;
static initializeAclDef initializeAclProc;
static getLengthSidDef getLengthSidProc;
static getAclInformationDef getAclInformationProc;
static getSecurityDescriptorDaclDef getSecurityDescriptorDaclProc;
static lookupAccountNameADef lookupAccountNameProc;
static getFileSecurityADef getFileSecurityProc;
static int initialized = 0;
if (!initialized) {
TCL_DECLARE_MUTEX(initializeMutex)
Tcl_MutexLock(&initializeMutex);
if (!initialized) {
HINSTANCE hInstance = LoadLibrary("Advapi32");
if (hInstance != NULL) {
setNamedSecurityInfoProc = (setNamedSecurityInfoADef)
GetProcAddress(hInstance, "SetNamedSecurityInfoA");
getFileSecurityProc = (getFileSecurityADef)
GetProcAddress(hInstance, "GetFileSecurityA");
getAceProc = (getAceDef)
GetProcAddress(hInstance, "GetAce");
addAceProc = (addAceDef)
GetProcAddress(hInstance, "AddAce");
equalSidProc = (equalSidDef)
GetProcAddress(hInstance, "EqualSid");
addAccessDeniedAceProc = (addAccessDeniedAceDef)
GetProcAddress(hInstance, "AddAccessDeniedAce");
initializeAclProc = (initializeAclDef)
GetProcAddress(hInstance, "InitializeAcl");
getLengthSidProc = (getLengthSidDef)
GetProcAddress(hInstance, "GetLengthSid");
getAclInformationProc = (getAclInformationDef)
GetProcAddress(hInstance, "GetAclInformation");
getSecurityDescriptorDaclProc = (getSecurityDescriptorDaclDef)
GetProcAddress(hInstance, "GetSecurityDescriptorDacl");
lookupAccountNameProc = (lookupAccountNameADef)
GetProcAddress(hInstance, "LookupAccountNameA");
getSidLengthRequiredProc = (getSidLengthRequiredDef)
GetProcAddress(hInstance, "GetSidLengthRequired");
initializeSidProc = (initializeSidDef)
GetProcAddress(hInstance, "InitializeSid");
getSidSubAuthorityProc = (getSidSubAuthorityDef)
GetProcAddress(hInstance, "GetSidSubAuthority");
if (setNamedSecurityInfoProc && getAceProc
&& addAceProc && equalSidProc && addAccessDeniedAceProc
&& initializeAclProc && getLengthSidProc
&& getAclInformationProc && getSecurityDescriptorDaclProc
&& lookupAccountNameProc && getFileSecurityProc
&& getSidLengthRequiredProc && initializeSidProc
&& getSidSubAuthorityProc)
initialized = 1;
}
if (!initialized)
initialized = -1;
}
Tcl_MutexUnlock(&initializeMutex);
}
/* Process the chmod request */
attr = GetFileAttributes(nativePath);
/* nativePath not found */
if (attr == 0xffffffff) {
res = -1;
goto done;
}
/* If no ACL API is present or nativePath is not a directory,
* there is no special handling
*/
if (initialized < 0 || !(attr & FILE_ATTRIBUTE_DIRECTORY)) {
goto done;
}
/* Set the result to error, if the ACL change is successful it will
* be reset to 0
*/
res = -1;
/*
* Read the security descriptor for the directory. Note the
* first call obtains the size of the security descriptor.
*/
if (!getFileSecurityProc(nativePath, infoBits, NULL, 0, &secDescLen)) {
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
DWORD secDescLen2 = 0;
secDesc = (BYTE *) ckalloc(secDescLen);
if (!getFileSecurityProc(nativePath, infoBits,
(PSECURITY_DESCRIPTOR)secDesc,
secDescLen, &secDescLen2)
|| (secDescLen < secDescLen2)) {
goto done;
}
} else {
goto done;
}
}
/* Get the World SID */
userSid = (SID*) ckalloc(getSidLengthRequiredProc((UCHAR)1));
initializeSidProc( userSid, &userSidAuthority, (BYTE)1);
*(getSidSubAuthorityProc( userSid, 0)) = SECURITY_WORLD_RID;
/* If curAclPresent == false then curAcl and curAclDefaulted not valid */
if (!getSecurityDescriptorDaclProc(secDesc, &curAclPresent,
&curAcl, &curAclDefaulted))
goto done;
if (!curAclPresent || !curAcl) {
ACLSize.AclBytesInUse = 0;
ACLSize.AceCount = 0;
} else if (!getAclInformationProc(curAcl, &ACLSize, sizeof(ACLSize),
AclSizeInformation))
goto done;
/* Allocate memory for the new ACL */
newAclSize = ACLSize.AclBytesInUse + sizeof (ACCESS_DENIED_ACE)
+ getLengthSidProc(userSid) - sizeof (DWORD);
newAcl = (ACL *) ckalloc (newAclSize);
/* Initialize the new ACL */
if(!initializeAclProc(newAcl, newAclSize, ACL_REVISION)) {
goto done;
}
/* Add denied to make readonly, this will be known as a "read-only tag" */
if (set_readOnly && !addAccessDeniedAceProc(newAcl, ACL_REVISION,
readOnlyMask, userSid)) {
goto done;
}
acl_readOnly_found = FALSE;
for (j = 0; j < ACLSize.AceCount; j++) {
PACL *pACE2;
ACE_HEADER *phACE2;
if (! getAceProc (curAcl, j, (LPVOID*) &pACE2)) {
goto done;
}
phACE2 = ((ACE_HEADER *) pACE2);
/* Do NOT propagate inherited ACEs */
if (phACE2->AceFlags & INHERITED_ACE) {
continue;
}
/* Skip the "read-only tag" restriction (either added above, or it
* is being removed)
*/
if (phACE2->AceType == ACCESS_DENIED_ACE_TYPE) {
ACCESS_DENIED_ACE *pACEd = (ACCESS_DENIED_ACE *)phACE2;
if (pACEd->Mask == readOnlyMask && equalSidProc(userSid,
(PSID)&(pACEd->SidStart))) {
acl_readOnly_found = TRUE;
continue;
}
}
/* Copy the current ACE from the old to the new ACL */
if(! addAceProc (newAcl, ACL_REVISION, MAXDWORD, pACE2,
((PACE_HEADER) pACE2)->AceSize)) {
goto done;
}
}
/* Apply the new ACL */
if (set_readOnly == acl_readOnly_found
|| setNamedSecurityInfoProc((LPSTR)nativePath, SE_FILE_OBJECT,
DACL_SECURITY_INFORMATION, NULL, NULL, newAcl, NULL)
== ERROR_SUCCESS ) {
res = 0;
}
done:
if (secDesc) ckfree(secDesc);
if (newAcl) ckfree((char *)newAcl);
if (userSid) ckfree((char *)userSid);
if (userDomain) ckfree(userDomain);
if (res != 0)
return res;
/* Run normal chmod command */
return chmod(nativePath, pmode);
}
/*
*---------------------------------------------------------------------------
*
* TestchmodCmd --
*
* Implements the "testchmod" cmd. Used when testing "file" command.
* The only attribute used by the Windows platform is the user write
* flag; if this is not set, the file is made read-only. Otehrwise, the
* file is made read-write.
*
* Results:
* A standard Tcl result.
*
* Side effects:
* Changes permissions of specified files.
*
*---------------------------------------------------------------------------
*/
static int
TestchmodCmd(dummy, interp, argc, argv)
ClientData dummy; /* Not used. */
Tcl_Interp *interp; /* Current interpreter. */
int argc; /* Number of arguments. */
CONST84 char **argv; /* Argument strings. */
{
int i, mode;
char *rest;
if (argc < 2) {
usage:
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" mode file ?file ...?", NULL);
return TCL_ERROR;
}
mode = (int) strtol(argv[1], &rest, 8);
if ((rest == argv[1]) || (*rest != '\0')) {
goto usage;
}
for (i = 2; i < argc; i++) {
Tcl_DString buffer;
CONST char *translated;
translated = Tcl_TranslateFileName(interp, argv[i], &buffer);
if (translated == NULL) {
return TCL_ERROR;
}
if (TestplatformChmod(translated, mode) != 0) {
Tcl_AppendResult(interp, translated, ": ", Tcl_PosixError(interp),
NULL);
return TCL_ERROR;
}
Tcl_DStringFree(&buffer);
}
return TCL_OK;
}
|