xnu-1504.9.17.tar.gz

[apple/xnu.git] / bsd / hfs / MacOSStubs.c

diff --git a/bsd/hfs/MacOSStubs.c b/bsd/hfs/MacOSStubs.c
index e3ad046157a52436cf38361dd07f7fb8e2c78bf9..0a1bded31d80f6f891f332326d5c9a135b5719c9 100644 (file)
--- a/bsd/hfs/MacOSStubs.c
+++ b/bsd/hfs/MacOSStubs.c
@@ -1,197 +1,70 @@
 /*
 /*

- * Copyright (c) 2000-2001 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  * 
  * 

- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.

  * 
  * 

- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER

  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.

  * 
  * 

- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
  */

-/*     @(#)MacOSStubs.c        4.0
-*
-*      (c) 1997-1999 Apple Computer, Inc.  All Rights Reserved
-*
-*      MacOSStubs.c -- Contains routines called by MacOS code, that is not defined.
-*
-*      HISTORY
-*       9-9-99         Don Brady       Don't use MNT_WAIT in C_FlushMDB.
-*       9-Mar-1999     Don Brady               Remove more obsolete routines, add ClearMemory(bzero).
-*      20-Nov-1998     Don Brady               Remove UFSToHFSStr and HFSToUFSStr routines (obsolete).
-*      31-Aug-1998     Don Brady               Move DST adjustments to GetTimeLocal (radar #2265075).
-*      28-Jul-1998     Don Brady               Add GetDiskBlocks routine (radar #2258148).
-*      23-Jul-1998     Don Brady               Use bdwrite instead of bwrite for default in RelBlock_glue (radar #2257225).
-*       7-Jul-1998     Don Brady               Remove character mappings from/to hfs (ufs_hfs and hfs_ufs tables).
-*      22-Jun-1998     Pat Dirks               Added the vice versa mappings in ufs_hfs and hfs_ufs to more
-*                                                              thoroughly interchange ":" and "/" in name strings.
-*       4-Jun-1998     Pat Dirks               Changed to do all B*-Tree writes synchronously (FORCESYNCBTREEWRITES = 1)
-*       4-jun-1998     Don Brady               Use VPUT macro instead of vput.
-*       6-may-1998     Don Brady               Bump h_devvp refcount in GetInitializedVNode (radar #2232480).
-*      27-apr-1998     Don Brady               Change printf to kprintf.
-*      23-Apr-1998     Pat Dirks               Cleaned up GetBlock_glue to add brelse on I/O errors from bread.
-*      23-apr-1998     Don Brady               Add '/' to ':' mapping and vice versa to mapping tables.
-*      21-apr-1998     Don Brady               Clean up time/date conversion routines.
-*      11-apr-1998     Don Brady               Add RequireFileLock routine.
-*       8-apr-1998     Don Brady               C_FlushMDB now calls hfs_flushvolumeheader and hfs_flushMDB.
-*      12-nov-1997     Scott Roberts
-*              Initially created file.
-*
-*/

 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>

-#include <sys/vnode.h>
-#include <sys/buf.h>

 #include <sys/malloc.h>
 #include <sys/malloc.h>

-#include <sys/mount.h>

 #include <sys/types.h>
 #include <sys/types.h>

-#include <sys/ubc.h>
-#include <sys/vm.h>
-#include "hfs.h"
-#include "hfs_dbg.h"

 
 

+#include <pexpert/pexpert.h>

 
 

+#include "hfs.h"
+#include "hfs_dbg.h"

 #include "hfscommon/headers/FileMgrInternal.h"
 
 #include "hfscommon/headers/FileMgrInternal.h"
 

-extern int (**hfs_vnodeop_p)(void *);
-
-

 /* 
  * gTimeZone should only be used for HFS volumes!
  * It is initialized when an HFS volume is mounted.
  */
 struct timezone gTimeZone = {8*60,1};
 
 /* 
  * gTimeZone should only be used for HFS volumes!
  * It is initialized when an HFS volume is mounted.
  */
 struct timezone gTimeZone = {8*60,1};
 

-
-/*                                                                             */
-/*     Creates a new vnode to hold a psuedo file like an extents tree file     */
-/*                                                                             */
-
-OSStatus  GetInitializedVNode(struct hfsmount *hfsmp, struct vnode **tmpvnode)
-{
-
-    struct hfsnode     *hp;
-    struct vnode       *vp = NULL;
-    int                                rtn;
-
-    DBG_ASSERT(hfsmp != NULL);
-    DBG_ASSERT(tmpvnode != NULL);
-
-    /* Allocate a new hfsnode. */
-    /*
-        * Must do malloc() before getnewvnode(), since malloc() can block
-        * and could cause other part of the system to access v_data
-        * which has not been initialized yet
-        */
-    MALLOC_ZONE(hp, struct hfsnode *, sizeof(struct hfsnode), M_HFSNODE, M_WAITOK);
-    if(hp == NULL) {
-        rtn = ENOMEM;
-        goto Err_Exit;
-    }
-    bzero((caddr_t)hp, sizeof(struct hfsnode));
-    lockinit(&hp->h_lock, PINOD, "hfsnode", 0, 0);
-
-    MALLOC_ZONE(hp->h_meta, struct hfsfilemeta *, 
-               sizeof(struct hfsfilemeta), M_HFSFMETA, M_WAITOK);
-    /* Allocate a new vnode. */
-    if ((rtn = getnewvnode(VT_HFS, HFSTOVFS(hfsmp), hfs_vnodeop_p, &vp))) {
-               FREE_ZONE(hp->h_meta, sizeof(struct hfsfilemeta), M_HFSFMETA);
-               FREE_ZONE(hp, sizeof(struct hfsnode), M_HFSNODE);
-        goto Err_Exit;
-    }
-
-    /* Init the structure */
-    bzero(hp->h_meta, sizeof(struct hfsfilemeta));
-
-    hp->h_vp = vp;                                                                     /* Make HFSTOV work */
-    hp->h_meta->h_devvp = hfsmp->hfs_devvp;
-    hp->h_meta->h_dev = hfsmp->hfs_raw_dev;
-    hp->h_meta->h_usecount++;
-    hp->h_nodeflags |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
-       rl_init(&hp->h_invalidranges);
-#if HFS_DIAGNOSTIC
-    hp->h_valid = HFS_VNODE_MAGIC;
-#endif
-    vp->v_data = hp;                                                           /* Make VTOH work */
-    vp->v_type = VREG;
-       /*
-        * Metadata files are VREG but not available for IO
-        * through mapped IO as will as POSIX IO APIs.
-        * Hence we do not initialize UBC for those files
-        */
-       vp->v_ubcinfo = UBC_NOINFO;
-
-    *tmpvnode = vp;
-    
-    VREF(hp->h_meta->h_devvp);
-
-    return noErr;
-
-Err_Exit:
-    
-    *tmpvnode = NULL;
-
-    return rtn;
-}
-
-OSErr  C_FlushMDB( ExtendedVCB *volume)
-{
-       short   err;
-
-       if (volume->vcbSigWord == kHFSPlusSigWord)
-               err = hfs_flushvolumeheader(VCBTOHFS(volume), 0);
-       else
-               err = hfs_flushMDB(VCBTOHFS(volume), 0);
-
-       return err;
-}
-
-

 /*
  * GetTimeUTC - get the GMT Mac OS time (in seconds since 1/1/1904)
  *
  * called by the Catalog Manager when creating/updating HFS Plus records
  */
 /*
  * GetTimeUTC - get the GMT Mac OS time (in seconds since 1/1/1904)
  *
  * called by the Catalog Manager when creating/updating HFS Plus records
  */

-UInt32 GetTimeUTC(void)
-{
-    return (time.tv_sec + MAC_GMT_FACTOR);
-}
-
-/*
- * GetTimeLocal - get the local Mac OS time (in seconds since 1/1/1904)
- *
- * called by the Catalog Manager when creating/updating HFS records
- */
-UInt32 GetTimeLocal(Boolean forHFS)
+u_int32_t GetTimeUTC(void)

 {
 {

-       UInt32 localTime;
-
-       localTime = UTCToLocal(GetTimeUTC());
+       struct timeval tv;

 
 

-       if (forHFS && gTimeZone.tz_dsttime)
-               localTime += 3600;
+       microtime(&tv);

 
 

-       return localTime;
+       return (tv.tv_sec + MAC_GMT_FACTOR);

 }
 
 }
 

+

 /*
  * LocalToUTC - convert from Mac OS local time to Mac OS GMT time.
  * This should only be called for HFS volumes (not for HFS Plus).
  */
 /*
  * LocalToUTC - convert from Mac OS local time to Mac OS GMT time.
  * This should only be called for HFS volumes (not for HFS Plus).
  */

-UInt32 LocalToUTC(UInt32 localTime)
+u_int32_t LocalToUTC(u_int32_t localTime)

 {
 {

-       UInt32 gtime = localTime;
+       u_int32_t gtime = localTime;

        
        if (gtime != 0) {
                gtime += (gTimeZone.tz_minuteswest * 60);
        
        if (gtime != 0) {
                gtime += (gTimeZone.tz_minuteswest * 60);


@@ -210,9 +83,9 @@ UInt32 LocalToUTC(UInt32 localTime)
  * UTCToLocal - convert from Mac OS GMT time to Mac OS local time.
  * This should only be called for HFS volumes (not for HFS Plus).
  */
  * UTCToLocal - convert from Mac OS GMT time to Mac OS local time.
  * This should only be called for HFS volumes (not for HFS Plus).
  */

-UInt32 UTCToLocal(UInt32 utcTime)
+u_int32_t UTCToLocal(u_int32_t utcTime)

 {
 {

-       UInt32 ltime = utcTime;
+       u_int32_t ltime = utcTime;

        
        if (ltime != 0) {
                ltime -= (gTimeZone.tz_minuteswest * 60);
        
        if (ltime != 0) {
                ltime -= (gTimeZone.tz_minuteswest * 60);


@@ -231,7 +104,7 @@ UInt32 UTCToLocal(UInt32 utcTime)
  * to_bsd_time - convert from Mac OS time (seconds since 1/1/1904)
  *              to BSD time (seconds since 1/1/1970)
  */
  * to_bsd_time - convert from Mac OS time (seconds since 1/1/1904)
  *              to BSD time (seconds since 1/1/1970)
  */

-u_int32_t to_bsd_time(u_int32_t hfs_time)
+time_t to_bsd_time(u_int32_t hfs_time)

 {
        u_int32_t gmt = hfs_time;
 
 {
        u_int32_t gmt = hfs_time;
 


@@ -240,16 +113,16 @@ u_int32_t to_bsd_time(u_int32_t hfs_time)
        else
                gmt = 0;        /* don't let date go negative! */
 
        else
                gmt = 0;        /* don't let date go negative! */
 

-       return gmt;
+       return (time_t)gmt;

 }
 
 /*
  * to_hfs_time - convert from BSD time (seconds since 1/1/1970)
  *              to Mac OS time (seconds since 1/1/1904)
  */
 }
 
 /*
  * to_hfs_time - convert from BSD time (seconds since 1/1/1970)
  *              to Mac OS time (seconds since 1/1/1904)
  */

-u_int32_t to_hfs_time(u_int32_t bsd_time)
+u_int32_t to_hfs_time(time_t bsd_time)

 {
 {

-       u_int32_t hfs_time = bsd_time;
+       u_int32_t hfs_time = (u_int32_t)bsd_time;

 
        /* don't adjust zero - treat as uninitialzed */
        if (hfs_time != 0)
 
        /* don't adjust zero - treat as uninitialzed */
        if (hfs_time != 0)


@@ -259,12 +132,6 @@ u_int32_t to_hfs_time(u_int32_t bsd_time)
 }
 
 
 }
 
 

-void BlockMoveData (const void *srcPtr, void *destPtr, Size byteCount)
-{
-    bcopy(srcPtr, destPtr, byteCount);
-}
-
-

 Ptr  NewPtrSysClear (Size byteCount)
 {
     Ptr                tmptr;
 Ptr  NewPtrSysClear (Size byteCount)
 {
     Ptr                tmptr;


@@ -290,71 +157,12 @@ void DisposePtr (Ptr p)
 }
 
 
 }
 
 

-void DebugStr (ConstStr255Param  debuggerMsg)
+void
+DebugStr(
+       const char * debuggerMsg
+       )

 {
 {

-    kprintf ("*** Mac OS Debugging Message: %s\n", &debuggerMsg[1]);
+    kprintf ("*** Mac OS Debugging Message: %s\n", debuggerMsg);

        DEBUG_BREAK;
 }
 
        DEBUG_BREAK;
 }
 

-OSErr MemError (void)
-{
-       return 0;
-}
-
-
-void ClearMemory( void* start, UInt32 length )
-{
-       bzero(start, (size_t)length);
-}
-
-
-/*
- * RequireFileLock
- *
- * Check to see if a vnode is locked in the current context
- * This is to be used for debugging purposes only!!
- */
-#if HFS_DIAGNOSTIC
-void RequireFileLock(FileReference vp, int shareable)
-{
-       struct lock__bsd__ *lkp;
-       int locked = false;
-       pid_t pid;
-       void * self;
-
-       pid = current_proc()->p_pid;
-    self = (void *) current_thread();
-       lkp = &VTOH(vp)->h_lock;
-
-return;
-
-       simple_lock(&lkp->lk_interlock);
-       
-       if (shareable && (lkp->lk_sharecount > 0) && (lkp->lk_lockholder == LK_NOPROC))
-               locked = true;
-       else if ((lkp->lk_exclusivecount > 0) && (lkp->lk_lockholder == pid) && (lkp->lk_lockthread == self))
-               locked = true;
-
-       simple_unlock(&lkp->lk_interlock);
-       
-       if (!locked) {
-               DBG_VFS((" # context...  self=0x%0X, pid=0x%0X, proc=0x%0X\n", (int)self, pid, (int)current_proc()));
-               DBG_VFS((" # lock state...  thread=0x%0X, holder=0x%0X, ex=%d, sh=%d\n", (int)lkp->lk_lockthread, lkp->lk_lockholder, lkp->lk_exclusivecount, lkp->lk_sharecount));
-
-               switch (H_FILEID(VTOH(vp))) {
-                       case 3:
-                               DEBUG_BREAK_MSG((" #\n # RequireFileLock: extent btree vnode not locked! v: 0x%08X\n #\n", (u_int)vp));
-                               break;
-
-                       case 4:
-                               DEBUG_BREAK_MSG((" #\n # RequireFileLock: catalog btree vnode not locked! v: 0x%08X\n #\n", (u_int)vp));
-                               break;
-
-                       default:
-                               DEBUG_BREAK_MSG((" #\n # RequireFileLock: file (%d) not locked! v: 0x%08X\n #\n", H_FILEID(VTOH(vp)), (u_int)vp));
-                               break;
-               }
-       }
-}
-#endif
-