#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/stat.h>
#include <sys/mount.h>
#include <sys/namei.h>
#include <sys/lock.h>
#include <sys/buf.h>
#include <sys/ubc.h>
#include <sys/unistd.h>
#include "hfs.h"
#include "hfs_catalog.h"
#include "hfs_dbg.h"
#include "hfs_mount.h"
#include "hfs_endian.h"
#include "hfs_cnode.h"
#include "hfscommon/headers/FileMgrInternal.h"
#include "hfscommon/headers/BTreesInternal.h"
#include "hfscommon/headers/HFSUnicodeWrappers.h"
extern int count_lock_queue __P((void));
extern uid_t console_user;
static void ReleaseMetaFileVNode(struct vnode *vp);
u_int32_t GetLogicalBlockSize(struct vnode *vp);
extern OSStatus GetBTreeBlock(FileReference vp, UInt32 blockNum, GetBlockOptions options, BlockDescriptor *block);
extern OSStatus SetBTreeBlockSize(FileReference vp, ByteCount blockSize, ItemCount minBlockCount);
extern OSStatus ExtendBTreeFile(FileReference vp, FSSize minEOF, FSSize maxEOF);
extern OSStatus ReleaseBTreeBlock(FileReference vp, BlockDescPtr blockPtr, ReleaseBlockOptions options);
char hfs_catname[] = "Catalog B-tree";
char hfs_extname[] = "Extents B-tree";
char hfs_vbmname[] = "Volume Bitmap";
char hfs_privdirname[] =
"\xE2\x90\x80\xE2\x90\x80\xE2\x90\x80\xE2\x90\x80HFS+ Private Data";
OSErr hfs_MountHFSVolume(struct hfsmount *hfsmp, HFSMasterDirectoryBlock *mdb,
struct proc *p)
{
ExtendedVCB *vcb = HFSTOVCB(hfsmp);
int error;
ByteCount utf8chars;
struct cat_desc cndesc;
struct cat_attr cnattr;
struct cat_fork fork;
if (SWAP_BE32(mdb->drAlBlkSiz) == 0 ||
(SWAP_BE32(mdb->drAlBlkSiz) & 0x01FF) != 0)
return (EINVAL);
if ((hfsmp->hfs_fs_ronly == 0) && ((SWAP_BE16(mdb->drAtrb) & kHFSVolumeUnmountedMask) == 0))
return (EINVAL);
vcb->vcbSigWord = SWAP_BE16 (mdb->drSigWord);
vcb->vcbCrDate = to_bsd_time(LocalToUTC(SWAP_BE32(mdb->drCrDate)));
vcb->localCreateDate = SWAP_BE32 (mdb->drCrDate);
vcb->vcbLsMod = to_bsd_time(LocalToUTC(SWAP_BE32(mdb->drLsMod)));
vcb->vcbAtrb = SWAP_BE16 (mdb->drAtrb);
vcb->vcbNmFls = SWAP_BE16 (mdb->drNmFls);
vcb->vcbVBMSt = SWAP_BE16 (mdb->drVBMSt);
vcb->nextAllocation = SWAP_BE16 (mdb->drAllocPtr);
vcb->totalBlocks = SWAP_BE16 (mdb->drNmAlBlks);
vcb->blockSize = SWAP_BE32 (mdb->drAlBlkSiz);
vcb->vcbClpSiz = SWAP_BE32 (mdb->drClpSiz);
vcb->vcbAlBlSt = SWAP_BE16 (mdb->drAlBlSt);
vcb->vcbNxtCNID = SWAP_BE32 (mdb->drNxtCNID);
vcb->freeBlocks = SWAP_BE16 (mdb->drFreeBks);
vcb->vcbVolBkUp = to_bsd_time(LocalToUTC(SWAP_BE32(mdb->drVolBkUp)));
vcb->vcbWrCnt = SWAP_BE32 (mdb->drWrCnt);
vcb->vcbNmRtDirs = SWAP_BE16 (mdb->drNmRtDirs);
vcb->vcbFilCnt = SWAP_BE32 (mdb->drFilCnt);
vcb->vcbDirCnt = SWAP_BE32 (mdb->drDirCnt);
bcopy(mdb->drFndrInfo, vcb->vcbFndrInfo, sizeof(vcb->vcbFndrInfo));
if (!hfsmp->hfs_fs_ronly)
vcb->vcbWrCnt++;
error = hfs_to_utf8(vcb, mdb->drVN, NAME_MAX, &utf8chars, vcb->vcbVN);
if (error || (utf8chars == 0))
(void) mac_roman_to_utf8(mdb->drVN, NAME_MAX, &utf8chars, vcb->vcbVN);
hfsmp->hfs_logBlockSize = BestBlockSizeFit(vcb->blockSize, MAXBSIZE, hfsmp->hfs_phys_block_size);
vcb->vcbVBMIOSize = kHFSBlockSize;
VCB_LOCK_INIT(vcb);
bzero(&cndesc, sizeof(cndesc));
cndesc.cd_parentcnid = kRootParID;
bzero(&cnattr, sizeof(cnattr));
cnattr.ca_nlink = 1;
cnattr.ca_mode = S_IFREG;
bzero(&fork, sizeof(fork));
cndesc.cd_nameptr = hfs_extname;
cndesc.cd_namelen = strlen(hfs_extname);
cndesc.cd_cnid = cnattr.ca_fileid = kHFSExtentsFileID;
fork.cf_size = SWAP_BE32(mdb->drXTFlSize);
fork.cf_blocks = fork.cf_size / vcb->blockSize;
fork.cf_clump = SWAP_BE32(mdb->drXTClpSiz);
fork.cf_extents[0].startBlock = SWAP_BE16(mdb->drXTExtRec[0].startBlock);
fork.cf_extents[0].blockCount = SWAP_BE16(mdb->drXTExtRec[0].blockCount);
fork.cf_extents[1].startBlock = SWAP_BE16(mdb->drXTExtRec[1].startBlock);
fork.cf_extents[1].blockCount = SWAP_BE16(mdb->drXTExtRec[1].blockCount);
fork.cf_extents[2].startBlock = SWAP_BE16(mdb->drXTExtRec[2].startBlock);
fork.cf_extents[2].blockCount = SWAP_BE16(mdb->drXTExtRec[2].blockCount);
cnattr.ca_blocks = fork.cf_blocks;
error = hfs_getnewvnode(hfsmp, NULL, &cndesc, 0, &cnattr, &fork,
&vcb->extentsRefNum);
if (error) goto MtVolErr;
error = MacToVFSError(BTOpenPath(VTOF(vcb->extentsRefNum),
(KeyCompareProcPtr)CompareExtentKeys,
GetBTreeBlock, ReleaseBTreeBlock,
ExtendBTreeFile, SetBTreeBlockSize));
if (error) {
VOP_UNLOCK(vcb->extentsRefNum, 0, p);
goto MtVolErr;
}
cndesc.cd_nameptr = hfs_catname;
cndesc.cd_namelen = strlen(hfs_catname);
cndesc.cd_cnid = cnattr.ca_fileid = kHFSCatalogFileID;
fork.cf_size = SWAP_BE32(mdb->drCTFlSize);
fork.cf_blocks = fork.cf_size / vcb->blockSize;
fork.cf_clump = SWAP_BE32(mdb->drCTClpSiz);
fork.cf_extents[0].startBlock = SWAP_BE16(mdb->drCTExtRec[0].startBlock);
fork.cf_extents[0].blockCount = SWAP_BE16(mdb->drCTExtRec[0].blockCount);
fork.cf_extents[1].startBlock = SWAP_BE16(mdb->drCTExtRec[1].startBlock);
fork.cf_extents[1].blockCount = SWAP_BE16(mdb->drCTExtRec[1].blockCount);
fork.cf_extents[2].startBlock = SWAP_BE16(mdb->drCTExtRec[2].startBlock);
fork.cf_extents[2].blockCount = SWAP_BE16(mdb->drCTExtRec[2].blockCount);
cnattr.ca_blocks = fork.cf_blocks;
error = hfs_getnewvnode(hfsmp, NULL, &cndesc, 0, &cnattr, &fork,
&vcb->catalogRefNum);
if (error) {
VOP_UNLOCK(vcb->extentsRefNum, 0, p);
goto MtVolErr;
}
error = MacToVFSError(BTOpenPath(VTOF(vcb->catalogRefNum),
(KeyCompareProcPtr)CompareCatalogKeys,
GetBTreeBlock, ReleaseBTreeBlock,
ExtendBTreeFile, SetBTreeBlockSize));
if (error) {
VOP_UNLOCK(vcb->catalogRefNum, 0, p);
VOP_UNLOCK(vcb->extentsRefNum, 0, p);
goto MtVolErr;
}
vcb->vcbAtrb &= ~kHFSVolumeUnmountedMask;
VOP_UNLOCK(vcb->catalogRefNum, 0, p);
VOP_UNLOCK(vcb->extentsRefNum, 0, p);
if ( error == noErr )
{
if ( !(vcb->vcbAtrb & kHFSVolumeHardwareLockMask) ) {
MarkVCBDirty( vcb ); }
}
goto CmdDone;
MtVolErr:
ReleaseMetaFileVNode(vcb->catalogRefNum);
ReleaseMetaFileVNode(vcb->extentsRefNum);
CmdDone:
return (error);
}
OSErr hfs_MountHFSPlusVolume(struct hfsmount *hfsmp, HFSPlusVolumeHeader *vhp,
off_t embeddedOffset, u_int64_t disksize, struct proc *p)
{
register ExtendedVCB *vcb;
struct cat_desc cndesc;
struct cat_attr cnattr;
UInt32 blockSize;
OSErr retval;
if (SWAP_BE16(vhp->signature) != kHFSPlusSigWord ||
SWAP_BE16(vhp->version) != kHFSPlusVersion)
return (EINVAL);
blockSize = SWAP_BE32(vhp->blockSize);
if (blockSize < 512 || (blockSize & (blockSize-1)) != 0)
return (EINVAL);
if (hfsmp->hfs_fs_ronly == 0 && (SWAP_BE32(vhp->attributes) & kHFSVolumeUnmountedMask) == 0)
return (EINVAL);
if ((disksize & (hfsmp->hfs_phys_block_size - 1)) ||
(embeddedOffset & (hfsmp->hfs_phys_block_size - 1)) ||
(SWAP_BE32(vhp->blockSize) < hfsmp->hfs_phys_block_size)) {
return (ENXIO);
}
vcb = HFSTOVCB(hfsmp);
vcb->vcbSigWord = SWAP_BE16(vhp->signature);
vcb->vcbLsMod = to_bsd_time(SWAP_BE32(vhp->modifyDate));
vcb->vcbAtrb = (UInt16)SWAP_BE32(vhp->attributes);
vcb->vcbClpSiz = SWAP_BE32(vhp->rsrcClumpSize);
vcb->vcbNxtCNID = SWAP_BE32(vhp->nextCatalogID);
vcb->vcbVolBkUp = to_bsd_time(SWAP_BE32(vhp->backupDate));
vcb->vcbWrCnt = SWAP_BE32(vhp->writeCount);
vcb->vcbFilCnt = SWAP_BE32(vhp->fileCount);
vcb->vcbDirCnt = SWAP_BE32(vhp->folderCount);
bcopy(vhp->finderInfo, vcb->vcbFndrInfo, sizeof(vhp->finderInfo));
vcb->vcbAlBlSt = 0;
if (!hfsmp->hfs_fs_ronly)
vcb->vcbWrCnt++;
VCB_LOCK_INIT(vcb);
vcb->nextAllocation = SWAP_BE32(vhp->nextAllocation);
vcb->totalBlocks = SWAP_BE32(vhp->totalBlocks);
vcb->freeBlocks = SWAP_BE32(vhp->freeBlocks);
vcb->blockSize = SWAP_BE32(vhp->blockSize);
vcb->encodingsBitmap = SWAP_BE64(vhp->encodingsBitmap);
vcb->localCreateDate = SWAP_BE32(vhp->createDate);
vcb->hfsPlusIOPosOffset = embeddedOffset;
vcb->reserveBlocks = 0;
hfsmp->hfs_logBlockSize = BestBlockSizeFit(vcb->blockSize, MAXBSIZE, hfsmp->hfs_phys_block_size);
vcb->vcbVBMIOSize = min(vcb->blockSize, MAXPHYSIO);
bzero(&cndesc, sizeof(cndesc));
cndesc.cd_parentcnid = kRootParID;
bzero(&cnattr, sizeof(cnattr));
cnattr.ca_nlink = 1;
cnattr.ca_mode = S_IFREG;
cndesc.cd_nameptr = hfs_extname;
cndesc.cd_namelen = strlen(hfs_extname);
cndesc.cd_cnid = cnattr.ca_fileid = kHFSExtentsFileID;
SWAP_HFS_PLUS_FORK_DATA (&vhp->extentsFile);
cnattr.ca_blocks = vhp->extentsFile.totalBlocks;
retval = hfs_getnewvnode(hfsmp, NULL, &cndesc, 0, &cnattr,
(struct cat_fork *)&vhp->extentsFile,
&vcb->extentsRefNum);
SWAP_HFS_PLUS_FORK_DATA (&vhp->extentsFile);
if (retval) goto ErrorExit;
retval = MacToVFSError(BTOpenPath(VTOF(vcb->extentsRefNum),
(KeyCompareProcPtr) CompareExtentKeysPlus,
GetBTreeBlock, ReleaseBTreeBlock,
ExtendBTreeFile, SetBTreeBlockSize));
if (retval) {
VOP_UNLOCK(vcb->extentsRefNum, 0, p);
goto ErrorExit;
}
cndesc.cd_nameptr = hfs_catname;
cndesc.cd_namelen = strlen(hfs_catname);
cndesc.cd_cnid = cnattr.ca_fileid = kHFSCatalogFileID;
SWAP_HFS_PLUS_FORK_DATA(&vhp->catalogFile);
cnattr.ca_blocks = vhp->catalogFile.totalBlocks;
retval = hfs_getnewvnode(hfsmp, NULL, &cndesc, 0, &cnattr,
(struct cat_fork *)&vhp->catalogFile,
&vcb->catalogRefNum);
SWAP_HFS_PLUS_FORK_DATA(&vhp->catalogFile);
if (retval) {
VOP_UNLOCK(vcb->extentsRefNum, 0, p);
goto ErrorExit;
}
retval = MacToVFSError(BTOpenPath(VTOF(vcb->catalogRefNum),
(KeyCompareProcPtr) CompareExtendedCatalogKeys,
GetBTreeBlock, ReleaseBTreeBlock,
ExtendBTreeFile, SetBTreeBlockSize));
if (retval) {
VOP_UNLOCK(vcb->catalogRefNum, 0, p);
VOP_UNLOCK(vcb->extentsRefNum, 0, p);
goto ErrorExit;
}
cndesc.cd_nameptr = hfs_vbmname;
cndesc.cd_namelen = strlen(hfs_vbmname);
cndesc.cd_cnid = cnattr.ca_fileid = kHFSAllocationFileID;
SWAP_HFS_PLUS_FORK_DATA(&vhp->allocationFile);
cnattr.ca_blocks = vhp->allocationFile.totalBlocks;
retval = hfs_getnewvnode(hfsmp, NULL, &cndesc, 0, &cnattr,
(struct cat_fork *)&vhp->allocationFile,
&vcb->allocationsRefNum);
SWAP_HFS_PLUS_FORK_DATA(&vhp->allocationFile);
if (retval) {
VOP_UNLOCK(vcb->catalogRefNum, 0, p);
VOP_UNLOCK(vcb->extentsRefNum, 0, p);
goto ErrorExit;
}
retval = cat_idlookup(hfsmp, kHFSRootFolderID, &cndesc, &cnattr, NULL);
if (retval) {
VOP_UNLOCK(vcb->allocationsRefNum, 0, p);
VOP_UNLOCK(vcb->catalogRefNum, 0, p);
VOP_UNLOCK(vcb->extentsRefNum, 0, p);
goto ErrorExit;
}
vcb->vcbCrDate = cnattr.ca_itime;
vcb->volumeNameEncodingHint = cndesc.cd_encoding;
bcopy(cndesc.cd_nameptr, vcb->vcbVN, min(255, cndesc.cd_namelen));
cat_releasedesc(&cndesc);
vcb->vcbAtrb &= ~kHFSVolumeUnmountedMask;
VOP_UNLOCK(vcb->allocationsRefNum, 0, p);
VOP_UNLOCK(vcb->catalogRefNum, 0, p);
VOP_UNLOCK(vcb->extentsRefNum, 0, p);
hfsmp->hfs_private_metadata_dir = FindMetaDataDirectory(vcb);
if ( !(vcb->vcbAtrb & kHFSVolumeHardwareLockMask) ) {
MarkVCBDirty( vcb ); }
return (0);
ErrorExit:
InvalidateCatalogCache(vcb);
ReleaseMetaFileVNode(vcb->allocationsRefNum);
ReleaseMetaFileVNode(vcb->catalogRefNum);
ReleaseMetaFileVNode(vcb->extentsRefNum);
return (retval);
}
static void ReleaseMetaFileVNode(struct vnode *vp)
{
struct filefork *fp;
if (vp && (fp = VTOF(vp))) {
if (fp->fcbBTCBPtr != NULL)
(void) BTClosePath(fp);
vrele(vp);
vgone(vp);
}
}
short hfsUnmount( register struct hfsmount *hfsmp, struct proc *p)
{
ExtendedVCB *vcb = HFSTOVCB(hfsmp);
int retval = E_NONE;
InvalidateCatalogCache( vcb );
if (vcb->vcbSigWord == kHFSPlusSigWord)
ReleaseMetaFileVNode(vcb->allocationsRefNum);
ReleaseMetaFileVNode(vcb->catalogRefNum);
ReleaseMetaFileVNode(vcb->extentsRefNum);
return (retval);
}
short
hfs_getcatalog(void *p1, u_long p2, void *p3, short p4, void *p5)
{
return ENOENT;
}
int overflow_extents(struct filefork *fp)
{
u_long blocks;
if (VTOVCB(FTOV(fp))->vcbSigWord == kHFSPlusSigWord) {
if (fp->ff_extents[7].blockCount == 0)
return (0);
blocks = fp->ff_extents[0].blockCount +
fp->ff_extents[1].blockCount +
fp->ff_extents[2].blockCount +
fp->ff_extents[3].blockCount +
fp->ff_extents[4].blockCount +
fp->ff_extents[5].blockCount +
fp->ff_extents[6].blockCount +
fp->ff_extents[7].blockCount;
} else {
if (fp->ff_extents[2].blockCount == 0)
return false;
blocks = fp->ff_extents[0].blockCount +
fp->ff_extents[1].blockCount +
fp->ff_extents[2].blockCount;
}
return (fp->ff_blocks > blocks);
}
int
hfs_metafilelocking(struct hfsmount *hfsmp, u_long fileID, u_int flags, struct proc *p)
{
ExtendedVCB *vcb;
struct vnode *vp = NULL;
int numOfLockedBuffs;
int retval = 0;
vcb = HFSTOVCB(hfsmp);
switch (fileID) {
case kHFSExtentsFileID:
vp = vcb->extentsRefNum;
break;
case kHFSCatalogFileID:
vp = vcb->catalogRefNum;
break;
case kHFSAllocationFileID:
default:
panic("hfs_lockmetafile: invalid fileID");
}
if ((flags & LK_TYPE_MASK) == LK_RELEASE) {
struct timeval tv = time;
u_int32_t lastfsync = tv.tv_sec;
(void) BTGetLastSync((FCB*)VTOF(vp), &lastfsync);
numOfLockedBuffs = count_lock_queue();
if ((numOfLockedBuffs > kMaxLockedMetaBuffers) || ((numOfLockedBuffs>1) && ((tv.tv_sec - lastfsync) > kMaxSecsForFsync))) {
hfs_btsync(vp, HFS_SYNCTRANS);
}
} else {
flags |= LK_RETRY;
}
retval = lockmgr(&VTOC(vp)->c_lock, flags, &vp->v_interlock, p);
return (retval);
}
#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 = &VTOC(vp)->c_lock;
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) {
switch (VTOC(vp)->c_fileid) {
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", VTOC(vp)->c_fileid, (u_int)vp));
break;
}
}
}
#endif
int
hfs_owner_rights(struct hfsmount *hfsmp, uid_t cnode_uid, struct ucred *cred,
struct proc *p, int invokesuperuserstatus)
{
if ((cred->cr_uid == cnode_uid) ||
((cnode_uid == UNKNOWNUID) && (cred->cr_uid == console_user)) ||
((HFSTOVFS(hfsmp)->mnt_flag & MNT_UNKNOWNPERMISSIONS) &&
((cred->cr_uid == hfsmp->hfs_uid) ||
((hfsmp->hfs_uid == UNKNOWNUID) &&
(cred->cr_uid == console_user)))) ||
(invokesuperuserstatus && (suser(cred, &p->p_acflag) == 0))) {
return (0);
} else {
return (EPERM);
}
}
unsigned long BestBlockSizeFit(unsigned long allocationBlockSize,
unsigned long blockSizeLimit,
unsigned long baseMultiple) {
int baseBlockCount, blockCount;
unsigned long trialBlockSize;
if (allocationBlockSize % baseMultiple != 0) {
return 512;
};
if (allocationBlockSize % PAGE_SIZE == 0) return PAGE_SIZE;
baseBlockCount = allocationBlockSize / baseMultiple;
for (blockCount = baseBlockCount; blockCount > 0; --blockCount) {
trialBlockSize = blockCount * baseMultiple;
if (allocationBlockSize % trialBlockSize == 0) {
if ((trialBlockSize <= blockSizeLimit) &&
(trialBlockSize % baseMultiple == 0)) {
return trialBlockSize;
};
};
};
return 512;
}
u_long
FindMetaDataDirectory(ExtendedVCB *vcb)
{
struct hfsmount * hfsmp;
struct vnode * dvp = NULL;
struct cnode * dcp = NULL;
struct FndrDirInfo * fndrinfo;
struct cat_desc out_desc = {0};
struct timeval tv;
int error;
if (vcb->vcbSigWord != kHFSPlusSigWord)
return (0);
hfsmp = VCBTOHFS(vcb);
if (hfsmp->hfs_privdir_desc.cd_parentcnid == 0) {
hfsmp->hfs_privdir_desc.cd_parentcnid = kRootDirID;
hfsmp->hfs_privdir_desc.cd_nameptr = hfs_privdirname;
hfsmp->hfs_privdir_desc.cd_namelen = strlen(hfs_privdirname);
hfsmp->hfs_privdir_desc.cd_flags = CD_ISDIR;
}
error = hfs_metafilelocking(hfsmp, kHFSCatalogFileID, LK_EXCLUSIVE, current_proc());
if (error)
return (0);
error = cat_lookup(hfsmp, &hfsmp->hfs_privdir_desc, 0, NULL,
&hfsmp->hfs_privdir_attr, NULL);
if (error == 0) {
(void) hfs_metafilelocking(hfsmp, kHFSCatalogFileID, LK_RELEASE, current_proc());
hfsmp->hfs_metadata_createdate = hfsmp->hfs_privdir_attr.ca_itime;
return (hfsmp->hfs_privdir_attr.ca_fileid);
} else if (hfsmp->hfs_fs_ronly) {
(void) hfs_metafilelocking(hfsmp, kHFSCatalogFileID, LK_RELEASE, current_proc());
return (0);
}
bzero(&hfsmp->hfs_privdir_attr, sizeof(struct cat_attr));
hfsmp->hfs_privdir_attr.ca_mode = S_IFDIR;
hfsmp->hfs_privdir_attr.ca_flags = SF_IMMUTABLE;
hfsmp->hfs_privdir_attr.ca_nlink = 2;
hfsmp->hfs_privdir_attr.ca_itime = vcb->vcbCrDate;
hfsmp->hfs_privdir_attr.ca_mtime = time.tv_sec;
fndrinfo = (struct FndrDirInfo *)&hfsmp->hfs_privdir_attr.ca_finderinfo;
fndrinfo->frLocation.v = SWAP_BE16 (22460);
fndrinfo->frLocation.h = SWAP_BE16 (22460);
fndrinfo->frFlags |= SWAP_BE16 (kIsInvisible + kNameLocked);
error = cat_create(hfsmp, &hfsmp->hfs_privdir_desc,
&hfsmp->hfs_privdir_attr, &out_desc);
(void) hfs_metafilelocking(hfsmp, kHFSCatalogFileID, LK_RELEASE, current_proc());
if (error)
return (0);
hfsmp->hfs_privdir_desc.cd_hint = out_desc.cd_hint;
hfsmp->hfs_privdir_desc.cd_cnid = out_desc.cd_cnid;
hfsmp->hfs_privdir_attr.ca_fileid = out_desc.cd_cnid;
hfsmp->hfs_metadata_createdate = vcb->vcbCrDate;
if (VFS_ROOT(HFSTOVFS(hfsmp), &dvp) == 0) {
dcp = VTOC(dvp);
dcp->c_childhint = out_desc.cd_hint;
dcp->c_nlink++;
dcp->c_entries++;
dcp->c_flag |= C_CHANGE | C_UPDATE;
tv = time;
(void) VOP_UPDATE(dvp, &tv, &tv, 0);
vput(dvp);
}
hfs_volupdate(hfsmp, VOL_MKDIR, 1);
cat_releasedesc(&out_desc);
return (out_desc.cd_cnid);
}
u_int32_t
GetLogicalBlockSize(struct vnode *vp)
{
u_int32_t logBlockSize;
DBG_ASSERT(vp != NULL);
logBlockSize = VTOHFS(vp)->hfs_logBlockSize;
if (vp->v_flag & VSYSTEM) {
if (VTOF(vp)->fcbBTCBPtr != NULL) {
BTreeInfoRec bTreeInfo;
(void) BTGetInformation (VTOF(vp), kBTreeInfoVersion, &bTreeInfo);
logBlockSize = bTreeInfo.nodeSize;
} else if (VTOC(vp)->c_fileid == kHFSAllocationFileID) {
logBlockSize = VTOVCB(vp)->vcbVBMIOSize;
}
}
DBG_ASSERT(logBlockSize > 0);
return logBlockSize;
}
__private_extern__
u_int32_t
hfs_freeblks(struct hfsmount * hfsmp, int wantreserve)
{
struct vcb_t *vcb = HFSTOVCB(hfsmp);
u_int32_t freeblks;
freeblks = vcb->freeBlocks;
if (wantreserve) {
if (freeblks > vcb->reserveBlocks)
freeblks -= vcb->reserveBlocks;
else
freeblks = 0;
}
freeblks -= vcb->loanedBlocks;
return (freeblks);
}
short MacToVFSError(OSErr err)
{
if (err >= 0)
return err;
switch (err) {
case dskFulErr:
case btNoSpaceAvail:
case fxOvFlErr:
return ENOSPC;
case btBadNode:
return EIO;
case memFullErr:
return ENOMEM;
case cmExists:
case btExists:
return EEXIST;
case cmNotFound:
case btNotFound:
return ENOENT;
case cmNotEmpty:
return ENOTEMPTY;
case cmFThdDirErr:
return EISDIR;
case fxRangeErr:
return EIO;
case bdNamErr:
return ENAMETOOLONG;
case paramErr:
case fileBoundsErr:
return EINVAL;
case fsBTBadNodeSize:
return ENXIO;
default:
return EIO;
}
}
__private_extern__
char *
hfs_getnamehint(struct cnode *dcp, int index)
{
struct hfs_index *entry;
void *self;
if (index > 0) {
self = current_thread();
SLIST_FOREACH(entry, &dcp->c_indexlist, hi_link) {
if ((entry->hi_index == index)
&& (entry->hi_thread == self))
return (entry->hi_name);
}
}
return (NULL);
}
__private_extern__
void
hfs_savenamehint(struct cnode *dcp, int index, const char * namehint)
{
struct hfs_index *entry;
int len;
if (index > 0) {
len = strlen(namehint);
MALLOC(entry, struct hfs_index *, len + sizeof(struct hfs_index),
M_TEMP, M_WAITOK);
entry->hi_index = index;
entry->hi_thread = current_thread();
bcopy(namehint, entry->hi_name, len + 1);
SLIST_INSERT_HEAD(&dcp->c_indexlist, entry, hi_link);
}
}
__private_extern__
void
hfs_relnamehint(struct cnode *dcp, int index)
{
struct hfs_index *entry;
void *self;
if (index > 0) {
self = current_thread();
SLIST_FOREACH(entry, &dcp->c_indexlist, hi_link) {
if ((entry->hi_index == index)
&& (entry->hi_thread == self)) {
SLIST_REMOVE(&dcp->c_indexlist, entry, hfs_index,
hi_link);
FREE(entry, M_TEMP);
break;
}
}
}
}
__private_extern__
void
hfs_relnamehints(struct cnode *dcp)
{
struct hfs_index *entry;
struct hfs_index *next;
if (!SLIST_EMPTY(&dcp->c_indexlist)) {
for(entry = SLIST_FIRST(&dcp->c_indexlist);
entry != NULL;
entry = next) {
next = SLIST_NEXT(entry, hi_link);
SLIST_REMOVE(&dcp->c_indexlist, entry, hfs_index, hi_link);
FREE(entry, M_TEMP);
}
}
}