/*
- * Copyright (c) 1999-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1999-2005 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
*/
#include <sys/param.h>
#include <sys/systm.h>
+#include <sys/kauth.h>
#include <sys/ubc.h>
-#include <sys/namei.h>
-#include <sys/vnode.h>
-#include <sys/mount.h>
+#include <sys/vnode_internal.h>
+#include <sys/mount_internal.h>
+#include <sys/sysctl.h>
#include <sys/malloc.h>
#include <sys/stat.h>
-#include <sys/lock.h>
#include <sys/quota.h>
#include <sys/disk.h>
+#include <sys/paths.h>
+#include <sys/utfconv.h>
+#include <sys/kdebug.h>
+
+#include <kern/locks.h>
+
+#include <vfs/vfs_journal.h>
#include <miscfs/specfs/specdev.h>
#include <hfs/hfs_mount.h>
#include "hfs_cnode.h"
#include "hfs_dbg.h"
#include "hfs_endian.h"
+#include "hfs_hotfiles.h"
#include "hfs_quota.h"
#include "hfscommon/headers/FileMgrInternal.h"
#endif
+lck_grp_attr_t * hfs_group_attr;
+lck_attr_t * hfs_lock_attr;
+lck_grp_t * hfs_mutex_group;
+lck_grp_t * hfs_rwlock_group;
+
+
extern struct vnodeopv_desc hfs_vnodeop_opv_desc;
extern void hfs_converterinit(void);
-extern void inittodr( time_t base);
+extern void inittodr(time_t base);
+extern int hfs_write_access(struct vnode *, kauth_cred_t, struct proc *, Boolean);
-static int hfs_changefs __P((struct mount *mp, struct hfs_mount_args *args,
- struct proc *p));
-static int hfs_reload __P((struct mount *mp, struct ucred *cred, struct proc *p));
-static int hfs_mountfs __P((struct vnode *devvp, struct mount *mp, struct proc *p,
- struct hfs_mount_args *args));
-static int hfs_statfs __P((struct mount *mp, register struct statfs *sbp,
- struct proc *p));
+static int hfs_changefs(struct mount *mp, struct hfs_mount_args *args);
+static int hfs_fhtovp(struct mount *mp, int fhlen, unsigned char *fhp, struct vnode **vpp, vfs_context_t context);
+static int hfs_flushfiles(struct mount *, int, struct proc *);
+static int hfs_flushMDB(struct hfsmount *hfsmp, int waitfor, int altflush);
+static int hfs_getmountpoint(struct vnode *vp, struct hfsmount **hfsmpp);
+static int hfs_init(struct vfsconf *vfsp);
+static int hfs_mount(struct mount *mp, vnode_t devvp, user_addr_t data, vfs_context_t context);
+static int hfs_mountfs(struct vnode *devvp, struct mount *mp, struct hfs_mount_args *args, vfs_context_t context);
+static int hfs_reload(struct mount *mp, kauth_cred_t cred, struct proc *p);
+static int hfs_vfs_root(struct mount *mp, struct vnode **vpp, vfs_context_t context);
+static int hfs_quotactl(struct mount *, int, uid_t, caddr_t, vfs_context_t context);
+static int hfs_start(struct mount *mp, int flags, vfs_context_t context);
+static int hfs_statfs(struct mount *mp, register struct vfsstatfs *sbp, vfs_context_t context);
+static int hfs_sync(struct mount *mp, int waitfor, vfs_context_t context);
+static int hfs_sysctl(int *name, u_int namelen, user_addr_t oldp, size_t *oldlenp,
+ user_addr_t newp, size_t newlen, vfs_context_t context);
+static int hfs_unmount(struct mount *mp, int mntflags, vfs_context_t context);
+static int hfs_vfs_vget(struct mount *mp, ino64_t ino, struct vnode **vpp, vfs_context_t context);
+static int hfs_vptofh(struct vnode *vp, int *fhlenp, unsigned char *fhp, vfs_context_t context);
+
+static int hfs_reclaimspace(struct hfsmount *hfsmp, u_long startblk);
/*
* Called by vfs_mountroot when mounting HFS Plus as root.
*/
+
+__private_extern__
int
-hfs_mountroot()
+hfs_mountroot(mount_t mp, vnode_t rvp, vfs_context_t context)
{
- extern struct vnode *rootvp;
- struct mount *mp;
- struct proc *p = current_proc(); /* XXX */
struct hfsmount *hfsmp;
ExtendedVCB *vcb;
+ struct vfsstatfs *vfsp;
int error;
- /*
- * Get vnode for rootdev.
- */
- if ((error = bdevvp(rootdev, &rootvp))) {
- printf("hfs_mountroot: can't setup bdevvp");
- return (error);
- }
- if ((error = vfs_rootmountalloc("hfs", "root_device", &mp))) {
- vrele(rootvp); /* release the reference from bdevvp() */
- return (error);
- }
- if ((error = hfs_mountfs(rootvp, mp, p, NULL))) {
- mp->mnt_vfc->vfc_refcount--;
- vfs_unbusy(mp, p);
- vrele(rootvp); /* release the reference from bdevvp() */
- _FREE_ZONE(mp, sizeof (struct mount), M_MOUNT);
+ if ((error = hfs_mountfs(rvp, mp, NULL, context)))
return (error);
- }
- simple_lock(&mountlist_slock);
- CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
- simple_unlock(&mountlist_slock);
-
+
/* Init hfsmp */
hfsmp = VFSTOHFS(mp);
vcb->reserveBlocks = ((u_int64_t)vcb->totalBlocks * HFS_MINFREE) / 100;
vcb->reserveBlocks = MIN(vcb->reserveBlocks, HFS_MAXRESERVE / vcb->blockSize);
- (void)hfs_statfs(mp, &mp->mnt_stat, p);
-
- vfs_unbusy(mp, p);
- inittodr(HFSTOVCB(hfsmp)->vcbLsMod);
+ vfsp = vfs_statfs(mp);
+ (void)hfs_statfs(mp, vfsp, NULL);
+
return (0);
}
*/
static int
-hfs_mount(mp, path, data, ndp, p)
- register struct mount *mp;
- char *path;
- caddr_t data;
- struct nameidata *ndp;
- struct proc *p;
+hfs_mount(struct mount *mp, vnode_t devvp, user_addr_t data, vfs_context_t context)
{
+ struct proc *p = vfs_context_proc(context);
struct hfsmount *hfsmp = NULL;
- struct vnode *devvp;
struct hfs_mount_args args;
- size_t size;
int retval = E_NONE;
- int flags;
- mode_t accessmode;
-
- if ((retval = copyin(data, (caddr_t)&args, sizeof(args))))
- goto error_exit;
+ uint32_t cmdflags;
- /*
- * If updating, check whether changing from read-only to
- * read/write; if there is no device name, that's all we do.
- */
- if (mp->mnt_flag & MNT_UPDATE) {
-
+ if ((retval = copyin(data, (caddr_t)&args, sizeof(args)))) {
+ return (retval);
+ }
+ cmdflags = (uint32_t)vfs_flags(mp) & MNT_CMDFLAGS;
+ if (cmdflags & MNT_UPDATE) {
hfsmp = VFSTOHFS(mp);
- if ((hfsmp->hfs_fs_ronly == 0) && (mp->mnt_flag & MNT_RDONLY)) {
-
+
+ /* Reload incore data after an fsck. */
+ if (cmdflags & MNT_RELOAD) {
+ if (vfs_isrdonly(mp))
+ return hfs_reload(mp, vfs_context_ucred(context), p);
+ else
+ return (EINVAL);
+ }
+
+ /* Change to a read-only file system. */
+ if (((hfsmp->hfs_flags & HFS_READ_ONLY) == 0) &&
+ vfs_isrdonly(mp)) {
+ int flags;
+
/* use VFS_SYNC to push out System (btree) files */
- retval = VFS_SYNC(mp, MNT_WAIT, p->p_ucred, p);
- if (retval && ((mp->mnt_flag & MNT_FORCE) == 0))
- goto error_exit;
+ retval = VFS_SYNC(mp, MNT_WAIT, context);
+ if (retval && ((cmdflags & MNT_FORCE) == 0))
+ goto out;
flags = WRITECLOSE;
- if (mp->mnt_flag & MNT_FORCE)
+ if (cmdflags & MNT_FORCE)
flags |= FORCECLOSE;
if ((retval = hfs_flushfiles(mp, flags, p)))
- goto error_exit;
- hfsmp->hfs_fs_ronly = 1;
+ goto out;
+ hfsmp->hfs_flags |= HFS_READ_ONLY;
retval = hfs_flushvolumeheader(hfsmp, MNT_WAIT, 0);
/* also get the volume bitmap blocks */
- if (!retval)
- retval = VOP_FSYNC(hfsmp->hfs_devvp, NOCRED, MNT_WAIT, p);
-
+ if (!retval) {
+ if (vnode_mount(hfsmp->hfs_devvp) == mp) {
+ retval = hfs_fsync(hfsmp->hfs_devvp, MNT_WAIT, 0, p);
+ } else {
+ vnode_get(hfsmp->hfs_devvp);
+ retval = VNOP_FSYNC(hfsmp->hfs_devvp, MNT_WAIT, context);
+ vnode_put(hfsmp->hfs_devvp);
+ }
+ }
if (retval) {
- hfsmp->hfs_fs_ronly = 0;
- goto error_exit;
+ hfsmp->hfs_flags &= ~HFS_READ_ONLY;
+ goto out;
}
- }
+ if (hfsmp->jnl) {
+ hfs_global_exclusive_lock_acquire(hfsmp);
- if ((mp->mnt_flag & MNT_RELOAD) &&
- (retval = hfs_reload(mp, ndp->ni_cnd.cn_cred, p)))
- goto error_exit;
+ journal_close(hfsmp->jnl);
+ hfsmp->jnl = NULL;
- if (hfsmp->hfs_fs_ronly && (mp->mnt_kern_flag & MNTK_WANTRDWR)) {
- /*
- * If upgrade to read-write by non-root, then verify
- * that user has necessary permissions on the device.
- */
- if (p->p_ucred->cr_uid != 0) {
- devvp = hfsmp->hfs_devvp;
- vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY, p);
- if ((retval = VOP_ACCESS(devvp, VREAD | VWRITE, p->p_ucred, p))) {
- VOP_UNLOCK(devvp, 0, p);
- goto error_exit;
- }
- VOP_UNLOCK(devvp, 0, p);
+ // Note: we explicitly don't want to shutdown
+ // access to the jvp because we may need
+ // it later if we go back to being read-write.
+
+ hfs_global_exclusive_lock_release(hfsmp);
}
+ }
+
+ /* Change to a writable file system. */
+ if (vfs_iswriteupgrade(mp)) {
retval = hfs_flushvolumeheader(hfsmp, MNT_WAIT, 0);
-
if (retval != E_NONE)
- goto error_exit;
+ goto out;
+
+ // If the journal was shut-down previously because we were
+ // asked to be read-only, let's start it back up again now
+
+ if ( (HFSTOVCB(hfsmp)->vcbAtrb & kHFSVolumeJournaledMask)
+ && hfsmp->jnl == NULL
+ && hfsmp->jvp != NULL) {
+ int jflags;
+
+ if (hfsmp->hfs_flags & HFS_NEED_JNL_RESET) {
+ jflags = JOURNAL_RESET;
+ } else {
+ jflags = 0;
+ }
+
+ hfs_global_exclusive_lock_acquire(hfsmp);
+
+ hfsmp->jnl = journal_open(hfsmp->jvp,
+ (hfsmp->jnl_start * HFSTOVCB(hfsmp)->blockSize) + (off_t)HFSTOVCB(hfsmp)->hfsPlusIOPosOffset,
+ hfsmp->jnl_size,
+ hfsmp->hfs_devvp,
+ hfsmp->hfs_phys_block_size,
+ jflags,
+ 0,
+ hfs_sync_metadata, hfsmp->hfs_mp);
+
+ hfs_global_exclusive_lock_release(hfsmp);
+
+ if (hfsmp->jnl == NULL) {
+ retval = EINVAL;
+ goto out;
+ } else {
+ hfsmp->hfs_flags &= ~HFS_NEED_JNL_RESET;
+ }
- /* only change hfs_fs_ronly after a successfull write */
- hfsmp->hfs_fs_ronly = 0;
- }
+ }
- if ((hfsmp->hfs_fs_ronly == 0) &&
- (HFSTOVCB(hfsmp)->vcbSigWord == kHFSPlusSigWord)) {
- /* setup private/hidden directory for unlinked files */
- hfsmp->hfs_private_metadata_dir = FindMetaDataDirectory(HFSTOVCB(hfsmp));
- }
+ /* Only clear HFS_READ_ONLY after a successfull write */
+ hfsmp->hfs_flags &= ~HFS_READ_ONLY;
- if (args.fspec == 0) {
- /*
- * Process export requests.
- */
- return vfs_export(mp, &hfsmp->hfs_export, &args.export);
+ if (!(hfsmp->hfs_flags & (HFS_READ_ONLY & HFS_STANDARD))) {
+ /* setup private/hidden directory for unlinked files */
+ FindMetaDataDirectory(HFSTOVCB(hfsmp));
+ hfs_remove_orphans(hfsmp);
+
+ /*
+ * Allow hot file clustering if conditions allow.
+ */
+ if (hfsmp->hfs_flags & HFS_METADATA_ZONE) {
+ (void) hfs_recording_init(hfsmp);
+ }
+ }
}
- }
- /*
- * Not an update, or updating the name: look up the name
- * and verify that it refers to a sensible block device.
- */
- NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p);
- retval = namei(ndp);
- if (retval != E_NONE) {
- DBG_ERR(("hfs_mount: CAN'T GET DEVICE: %s, %x\n", args.fspec, ndp->ni_vp->v_rdev));
- goto error_exit;
- }
+ /* Update file system parameters. */
+ retval = hfs_changefs(mp, &args);
- devvp = ndp->ni_vp;
+ } else /* not an update request */ {
- if (devvp->v_type != VBLK) {
- vrele(devvp);
- retval = ENOTBLK;
- goto error_exit;
+ /* Set the mount flag to indicate that we support volfs */
+ vfs_setflags(mp, (uint64_t)((unsigned int)MNT_DOVOLFS));
+
+ retval = hfs_mountfs(devvp, mp, &args, context);
}
- if (major(devvp->v_rdev) >= nblkdev) {
- vrele(devvp);
- retval = ENXIO;
- goto error_exit;
+out:
+ if (retval == 0) {
+ (void)hfs_statfs(mp, vfs_statfs(mp), context);
}
+ return (retval);
+}
+
+
+struct hfs_changefs_cargs {
+ struct hfsmount *hfsmp;
+ int namefix;
+ int permfix;
+ int permswitch;
+};
+
+static int
+hfs_changefs_callback(struct vnode *vp, void *cargs)
+{
+ ExtendedVCB *vcb;
+ struct cnode *cp;
+ struct cat_desc cndesc;
+ struct cat_attr cnattr;
+ struct hfs_changefs_cargs *args;
+
+ args = (struct hfs_changefs_cargs *)cargs;
+ cp = VTOC(vp);
+ vcb = HFSTOVCB(args->hfsmp);
+
+ if (cat_lookup(args->hfsmp, &cp->c_desc, 0, &cndesc, &cnattr, NULL, NULL)) {
+ /*
+ * If we couldn't find this guy skip to the next one
+ */
+ if (args->namefix)
+ cache_purge(vp);
+
+ return (VNODE_RETURNED);
+ }
/*
- * If mount by non-root, then verify that user has necessary
- * permissions on the device.
+ * Get the real uid/gid and perm mask from disk.
*/
- if (p->p_ucred->cr_uid != 0) {
- accessmode = VREAD;
- if ((mp->mnt_flag & MNT_RDONLY) == 0)
- accessmode |= VWRITE;
- vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY, p);
- if ((retval = VOP_ACCESS(devvp, accessmode, p->p_ucred, p))) {
- vput(devvp);
- goto error_exit;
- }
- VOP_UNLOCK(devvp, 0, p);
+ if (args->permswitch || args->permfix) {
+ cp->c_uid = cnattr.ca_uid;
+ cp->c_gid = cnattr.ca_gid;
+ cp->c_mode = cnattr.ca_mode;
}
+ /*
+ * If we're switching name converters then...
+ * Remove the existing entry from the namei cache.
+ * Update name to one based on new encoder.
+ */
+ if (args->namefix) {
+ cache_purge(vp);
+ replace_desc(cp, &cndesc);
- if ((mp->mnt_flag & MNT_UPDATE) == 0) {
- retval = hfs_mountfs(devvp, mp, p, &args);
- if (retval != E_NONE)
- vrele(devvp);
+ if (cndesc.cd_cnid == kHFSRootFolderID) {
+ strncpy(vcb->vcbVN, cp->c_desc.cd_nameptr, NAME_MAX);
+ cp->c_desc.cd_encoding = args->hfsmp->hfs_encoding;
+ }
} else {
- if (devvp != hfsmp->hfs_devvp)
- retval = EINVAL; /* needs translation */
- else
- retval = hfs_changefs(mp, &args, p);
- vrele(devvp);
- }
-
- if (retval != E_NONE) {
- goto error_exit;
+ cat_releasedesc(&cndesc);
}
-
-
- /* Set the mount flag to indicate that we support volfs */
- mp->mnt_flag |= MNT_DOVOLFS;
- if (VFSTOVCB(mp)->vcbSigWord == kHFSSigWord) {
- /* HFS volumes only want roman-encoded names: */
- mp->mnt_flag |= MNT_FIXEDSCRIPTENCODING;
- }
- (void) copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN-1, &size);
- bzero(mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
- (void) copyinstr(args.fspec, mp->mnt_stat.f_mntfromname, MNAMELEN - 1, &size);
- bzero(mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
- (void)hfs_statfs(mp, &mp->mnt_stat, p);
- return (E_NONE);
-
-error_exit:
-
- return (retval);
+ return (VNODE_RETURNED);
}
-
/* Change fs mount parameters */
static int
-hfs_changefs(mp, args, p)
- struct mount *mp;
- struct hfs_mount_args *args;
- struct proc *p;
+hfs_changefs(struct mount *mp, struct hfs_mount_args *args)
{
int retval = 0;
int namefix, permfix, permswitch;
struct hfsmount *hfsmp;
- struct cnode *cp;
ExtendedVCB *vcb;
- register struct vnode *vp, *nvp;
hfs_to_unicode_func_t get_unicode_func;
unicode_to_hfs_func_t get_hfsname_func;
- struct cat_desc cndesc;
- struct cat_attr cnattr;
- u_long old_encoding;
+ u_long old_encoding = 0;
+ struct hfs_changefs_cargs cargs;
+ uint32_t mount_flags;
hfsmp = VFSTOHFS(mp);
vcb = HFSTOVCB(hfsmp);
- permswitch = (((hfsmp->hfs_unknownpermissions != 0) && ((mp->mnt_flag & MNT_UNKNOWNPERMISSIONS) == 0)) ||
- ((hfsmp->hfs_unknownpermissions == 0) && ((mp->mnt_flag & MNT_UNKNOWNPERMISSIONS) != 0)));
+ mount_flags = (unsigned int)vfs_flags(mp);
+
+ permswitch = (((hfsmp->hfs_flags & HFS_UNKNOWN_PERMS) &&
+ ((mount_flags & MNT_UNKNOWNPERMISSIONS) == 0)) ||
+ (((hfsmp->hfs_flags & HFS_UNKNOWN_PERMS) == 0) &&
+ (mount_flags & MNT_UNKNOWNPERMISSIONS)));
+
/* The root filesystem must operate with actual permissions: */
- if (permswitch && (mp->mnt_flag & MNT_ROOTFS) && (mp->mnt_flag & MNT_UNKNOWNPERMISSIONS)) {
- mp->mnt_flag &= ~MNT_UNKNOWNPERMISSIONS; /* Just say "No". */
+ if (permswitch && (mount_flags & MNT_ROOTFS) && (mount_flags & MNT_UNKNOWNPERMISSIONS)) {
+ vfs_clearflags(mp, (uint64_t)((unsigned int)MNT_UNKNOWNPERMISSIONS)); /* Just say "No". */
return EINVAL;
- };
- hfsmp->hfs_unknownpermissions = ((mp->mnt_flag & MNT_UNKNOWNPERMISSIONS) != 0);
- namefix = permfix = 0;
+ }
+ if (mount_flags & MNT_UNKNOWNPERMISSIONS)
+ hfsmp->hfs_flags |= HFS_UNKNOWN_PERMS;
+ else
+ hfsmp->hfs_flags &= ~HFS_UNKNOWN_PERMS;
+
+ namefix = permfix = 0;
/* Change the timezone (Note: this affects all hfs volumes and hfs+ volume create dates) */
if (args->hfs_timezone.tz_minuteswest != VNOVAL) {
/* Change the default uid, gid and/or mask */
if ((args->hfs_uid != (uid_t)VNOVAL) && (hfsmp->hfs_uid != args->hfs_uid)) {
hfsmp->hfs_uid = args->hfs_uid;
- if (HFSTOVCB(hfsmp)->vcbSigWord == kHFSPlusSigWord)
+ if (vcb->vcbSigWord == kHFSPlusSigWord)
++permfix;
}
if ((args->hfs_gid != (gid_t)VNOVAL) && (hfsmp->hfs_gid != args->hfs_gid)) {
hfsmp->hfs_gid = args->hfs_gid;
- if (HFSTOVCB(hfsmp)->vcbSigWord == kHFSPlusSigWord)
+ if (vcb->vcbSigWord == kHFSPlusSigWord)
++permfix;
}
if (args->hfs_mask != (mode_t)VNOVAL) {
hfsmp->hfs_file_mask = args->hfs_mask & ALLPERMS;
if ((args->flags != VNOVAL) && (args->flags & HFSFSMNT_NOXONFILES))
hfsmp->hfs_file_mask = (args->hfs_mask & DEFFILEMODE);
- if (HFSTOVCB(hfsmp)->vcbSigWord == kHFSPlusSigWord)
+ if (vcb->vcbSigWord == kHFSPlusSigWord)
++permfix;
}
}
/* Change the hfs encoding value (hfs only) */
- if ((HFSTOVCB(hfsmp)->vcbSigWord == kHFSSigWord) &&
- (hfsmp->hfs_encoding != (u_long)VNOVAL) &&
+ if ((vcb->vcbSigWord == kHFSSigWord) &&
+ (args->hfs_encoding != (u_long)VNOVAL) &&
(hfsmp->hfs_encoding != args->hfs_encoding)) {
retval = hfs_getconverter(args->hfs_encoding, &get_unicode_func, &get_hfsname_func);
if (!(namefix || permfix || permswitch))
goto exit;
+ /* XXX 3762912 hack to support HFS filesystem 'owner' */
+ if (permfix)
+ vfs_setowner(mp,
+ hfsmp->hfs_uid == UNKNOWNUID ? KAUTH_UID_NONE : hfsmp->hfs_uid,
+ hfsmp->hfs_gid == UNKNOWNGID ? KAUTH_GID_NONE : hfsmp->hfs_gid);
+
/*
* For each active vnode fix things that changed
*
* Note that we can visit a vnode more than once
* and we can race with fsync.
+ *
+ * hfs_changefs_callback will be called for each vnode
+ * hung off of this mount point
+ * the vnode will be
+ * properly referenced and unreferenced around the callback
*/
- simple_lock(&mntvnode_slock);
-loop:
- for (vp = mp->mnt_vnodelist.lh_first; vp != NULL; vp = nvp) {
- /*
- * If the vnode that we are about to fix is no longer
- * associated with this mount point, start over.
- */
- if (vp->v_mount != mp)
- goto loop;
-
- simple_lock(&vp->v_interlock);
- nvp = vp->v_mntvnodes.le_next;
- if (vp->v_flag & VSYSTEM) {
- simple_unlock(&vp->v_interlock);
- continue;
- }
- simple_unlock(&mntvnode_slock);
- retval = vget(vp, LK_EXCLUSIVE | LK_NOWAIT | LK_INTERLOCK, p);
- if (retval) {
- simple_lock(&mntvnode_slock);
- if (retval == ENOENT)
- goto loop;
- continue;
- }
-
- cp = VTOC(vp);
-
- retval = cat_lookup(hfsmp, &cp->c_desc, 0, &cndesc, &cnattr, NULL);
- /* If we couldn't find this guy skip to the next one */
- if (retval) {
- if (namefix)
- cache_purge(vp);
- vput(vp);
- simple_lock(&mntvnode_slock);
- continue;
- }
+ cargs.hfsmp = hfsmp;
+ cargs.namefix = namefix;
+ cargs.permfix = permfix;
+ cargs.permswitch = permswitch;
- if (permswitch || permfix) {
- cp->c_uid = cnattr.ca_uid;
- cp->c_gid = cnattr.ca_gid;
- cp->c_mode = cnattr.ca_mode;
- }
-
- /*
- * If we're switching name converters then...
- * Remove the existing entry from the namei cache.
- * Update name to one based on new encoder.
- */
- if (namefix) {
- cache_purge(vp);
- replace_desc(cp, &cndesc);
-
- if (cndesc.cd_cnid == kHFSRootFolderID) {
- strncpy(vcb->vcbVN, cp->c_desc.cd_nameptr, NAME_MAX);
- cp->c_desc.cd_encoding = hfsmp->hfs_encoding;
- }
- } else {
- cat_releasedesc(&cndesc);
- }
- vput(vp);
- simple_lock(&mntvnode_slock);
+ vnode_iterate(mp, 0, hfs_changefs_callback, (void *)&cargs);
- } /* end for (vp...) */
- simple_unlock(&mntvnode_slock);
/*
* If we're switching name converters we can now
* connect the new hfs_get_hfsname converter and
}
+struct hfs_reload_cargs {
+ struct hfsmount *hfsmp;
+ kauth_cred_t cred;
+ struct proc *p;
+ int error;
+};
+
+static int
+hfs_reload_callback(struct vnode *vp, void *cargs)
+{
+ struct cnode *cp;
+ struct hfs_reload_cargs *args;
+
+ args = (struct hfs_reload_cargs *)cargs;
+ /*
+ * flush all the buffers associated with this node
+ */
+ (void) buf_invalidateblks(vp, 0, 0, 0);
+
+ cp = VTOC(vp);
+ /*
+ * Remove any directory hints
+ */
+ if (vnode_isdir(vp))
+ hfs_reldirhints(cp, 0);
+
+ /*
+ * Re-read cnode data for all active vnodes (non-metadata files).
+ */
+ if (!VNODE_IS_RSRC(vp)) {
+ struct cat_fork *datafork;
+ struct cat_desc desc;
+
+ datafork = cp->c_datafork ? &cp->c_datafork->ff_data : NULL;
+
+ /* lookup by fileID since name could have changed */
+ if ((args->error = cat_idlookup(args->hfsmp, cp->c_fileid, &desc, &cp->c_attr, datafork)))
+ return (VNODE_RETURNED_DONE);
+
+ /* update cnode's catalog descriptor */
+ (void) replace_desc(cp, &desc);
+ }
+ return (VNODE_RETURNED);
+}
+
/*
* Reload all incore data for a filesystem (used after running fsck on
* the root filesystem and finding things to fix). The filesystem must
* re-read cnode data for all active vnodes.
*/
static int
-hfs_reload(mountp, cred, p)
- register struct mount *mountp;
- struct ucred *cred;
- struct proc *p;
+hfs_reload(struct mount *mountp, kauth_cred_t cred, struct proc *p)
{
- register struct vnode *vp, *nvp, *devvp;
- struct cnode *cp;
+ register struct vnode *devvp;
struct buf *bp;
int sectorsize;
int error, i;
ExtendedVCB *vcb;
struct filefork *forkp;
struct cat_desc cndesc;
-
- if ((mountp->mnt_flag & MNT_RDONLY) == 0)
- return (EINVAL);
+ struct hfs_reload_cargs args;
+ int lockflags;
hfsmp = VFSTOHFS(mountp);
vcb = HFSTOVCB(hfsmp);
* Invalidate all cached meta-data.
*/
devvp = hfsmp->hfs_devvp;
- if (vinvalbuf(devvp, 0, cred, p, 0, 0))
+ if (buf_invalidateblks(devvp, 0, 0, 0))
panic("hfs_reload: dirty1");
- InvalidateCatalogCache(vcb);
-
-loop:
- simple_lock(&mntvnode_slock);
- for (vp = mountp->mnt_vnodelist.lh_first; vp != NULL; vp = nvp) {
- if (vp->v_mount != mountp) {
- simple_unlock(&mntvnode_slock);
- goto loop;
- }
- nvp = vp->v_mntvnodes.le_next;
-
- /*
- * Invalidate all inactive vnodes.
- */
- if (vrecycle(vp, &mntvnode_slock, p))
- goto loop;
-
- /*
- * Invalidate all cached file data.
- */
- simple_lock(&vp->v_interlock);
- simple_unlock(&mntvnode_slock);
- if (vget(vp, LK_EXCLUSIVE | LK_INTERLOCK, p)) {
- goto loop;
- }
- if (vinvalbuf(vp, 0, cred, p, 0, 0))
- panic("hfs_reload: dirty2");
-
- /*
- * Re-read cnode data for all active vnodes (non-metadata files).
- */
- cp = VTOC(vp);
- if ((vp->v_flag & VSYSTEM) == 0 && !VNODE_IS_RSRC(vp)) {
- struct cat_fork *datafork;
- struct cat_desc desc;
-
- datafork = cp->c_datafork ? &cp->c_datafork->ff_data : NULL;
-
- /* lookup by fileID since name could have changed */
- if ((error = cat_idlookup(hfsmp, cp->c_fileid, &desc, &cp->c_attr, datafork))) {
- vput(vp);
- return (error);
- }
+ args.hfsmp = hfsmp;
+ args.cred = cred;
+ args.p = p;
+ args.error = 0;
+ /*
+ * hfs_reload_callback will be called for each vnode
+ * hung off of this mount point that can't be recycled...
+ * vnode_iterate will recycle those that it can (the VNODE_RELOAD option)
+ * the vnode will be in an 'unbusy' state (VNODE_WAIT) and
+ * properly referenced and unreferenced around the callback
+ */
+ lockflags = hfs_systemfile_lock(hfsmp, SFL_CATALOG, HFS_EXCLUSIVE_LOCK);
+ vnode_iterate(mountp, VNODE_RELOAD | VNODE_WAIT, hfs_reload_callback, (void *)&args);
+ hfs_systemfile_unlock(hfsmp, lockflags);
- /* update cnode's catalog descriptor */
- (void) replace_desc(cp, &desc);
- }
- vput(vp);
- simple_lock(&mntvnode_slock);
- }
- simple_unlock(&mntvnode_slock);
+ if (args.error)
+ return (args.error);
/*
* Re-read VolumeHeader from disk.
*/
sectorsize = hfsmp->hfs_phys_block_size;
- error = meta_bread(hfsmp->hfs_devvp,
- (vcb->hfsPlusIOPosOffset / sectorsize) + HFS_PRI_SECTOR(sectorsize),
+ error = (int)buf_meta_bread(hfsmp->hfs_devvp,
+ (daddr64_t)((vcb->hfsPlusIOPosOffset / sectorsize) + HFS_PRI_SECTOR(sectorsize)),
sectorsize, NOCRED, &bp);
if (error) {
if (bp != NULL)
- brelse(bp);
+ buf_brelse(bp);
return (error);
}
- vhp = (HFSPlusVolumeHeader *) (bp->b_data + HFS_PRI_OFFSET(sectorsize));
+ vhp = (HFSPlusVolumeHeader *) (buf_dataptr(bp) + HFS_PRI_OFFSET(sectorsize));
/* Do a quick sanity check */
- if (SWAP_BE16(vhp->signature) != kHFSPlusSigWord ||
- SWAP_BE16(vhp->version) != kHFSPlusVersion ||
+ if ((SWAP_BE16(vhp->signature) != kHFSPlusSigWord &&
+ SWAP_BE16(vhp->signature) != kHFSXSigWord) ||
+ (SWAP_BE16(vhp->version) != kHFSPlusVersion &&
+ SWAP_BE16(vhp->version) != kHFSXVersion) ||
SWAP_BE32(vhp->blockSize) != vcb->blockSize) {
- brelse(bp);
+ buf_brelse(bp);
return (EIO);
}
vcb->vcbLsMod = to_bsd_time(SWAP_BE32(vhp->modifyDate));
- vcb->vcbAtrb = (UInt16) SWAP_BE32 (vhp->attributes); /* VCB only uses lower 16 bits */
+ vcb->vcbAtrb = SWAP_BE32 (vhp->attributes);
+ vcb->vcbJinfoBlock = SWAP_BE32(vhp->journalInfoBlock);
vcb->vcbClpSiz = SWAP_BE32 (vhp->rsrcClumpSize);
vcb->vcbNxtCNID = SWAP_BE32 (vhp->nextCatalogID);
vcb->vcbVolBkUp = to_bsd_time(SWAP_BE32(vhp->backupDate));
forkp->ff_blocks = SWAP_BE32 (vhp->catalogFile.totalBlocks);
forkp->ff_clumpsize = SWAP_BE32 (vhp->catalogFile.clumpSize);
+ if (hfsmp->hfs_attribute_vp) {
+ forkp = VTOF(hfsmp->hfs_attribute_vp);
+ for (i = 0; i < kHFSPlusExtentDensity; i++) {
+ forkp->ff_extents[i].startBlock =
+ SWAP_BE32 (vhp->attributesFile.extents[i].startBlock);
+ forkp->ff_extents[i].blockCount =
+ SWAP_BE32 (vhp->attributesFile.extents[i].blockCount);
+ }
+ forkp->ff_size = SWAP_BE64 (vhp->attributesFile.logicalSize);
+ forkp->ff_blocks = SWAP_BE32 (vhp->attributesFile.totalBlocks);
+ forkp->ff_clumpsize = SWAP_BE32 (vhp->attributesFile.clumpSize);
+ }
forkp = VTOF((struct vnode *)vcb->allocationsRefNum);
for (i = 0; i < kHFSPlusExtentDensity; i++) {
forkp->ff_blocks = SWAP_BE32 (vhp->allocationFile.totalBlocks);
forkp->ff_clumpsize = SWAP_BE32 (vhp->allocationFile.clumpSize);
- brelse(bp);
+ buf_brelse(bp);
vhp = NULL;
/*
* Re-load B-tree header data
*/
forkp = VTOF((struct vnode *)vcb->extentsRefNum);
- if (error = MacToVFSError( BTReloadData((FCB*)forkp) ))
+ if ( (error = MacToVFSError( BTReloadData((FCB*)forkp) )) )
return (error);
forkp = VTOF((struct vnode *)vcb->catalogRefNum);
- if (error = MacToVFSError( BTReloadData((FCB*)forkp) ))
+ if ( (error = MacToVFSError( BTReloadData((FCB*)forkp) )) )
return (error);
+ if (hfsmp->hfs_attribute_vp) {
+ forkp = VTOF(hfsmp->hfs_attribute_vp);
+ if ( (error = MacToVFSError( BTReloadData((FCB*)forkp) )) )
+ return (error);
+ }
+
/* Reload the volume name */
if ((error = cat_idlookup(hfsmp, kHFSRootFolderID, &cndesc, NULL, NULL)))
return (error);
cat_releasedesc(&cndesc);
/* Re-establish private/hidden directory for unlinked files */
- hfsmp->hfs_private_metadata_dir = FindMetaDataDirectory(vcb);
+ FindMetaDataDirectory(vcb);
+ /* In case any volume information changed to trigger a notification */
+ hfs_generate_volume_notifications(hfsmp);
+
return (0);
}
* Common code for mount and mountroot
*/
static int
-hfs_mountfs(struct vnode *devvp, struct mount *mp, struct proc *p,
- struct hfs_mount_args *args)
+hfs_mountfs(struct vnode *devvp, struct mount *mp, struct hfs_mount_args *args,
+ vfs_context_t context)
{
+ struct proc *p = vfs_context_proc(context);
int retval = E_NONE;
struct hfsmount *hfsmp;
struct buf *bp;
int ronly;
int i;
int mntwrapper;
- struct ucred *cred;
+ kauth_cred_t cred;
u_int64_t disksize;
- u_int64_t blkcnt;
+ daddr64_t blkcnt;
u_int32_t blksize;
u_int32_t minblksize;
u_int32_t iswritable;
+ daddr64_t mdb_offset;
- dev = devvp->v_rdev;
- cred = p ? p->p_ucred : NOCRED;
+ ronly = vfs_isrdonly(mp);
+ dev = vnode_specrdev(devvp);
+ cred = p ? vfs_context_ucred(context) : NOCRED;
mntwrapper = 0;
- /*
- * Disallow multiple mounts of the same device.
- * Disallow mounting of a device that is currently in use
- * (except for root, which might share swap device for miniroot).
- * Flush out any old buffers remaining from a previous use.
- */
- if ((retval = vfs_mountedon(devvp)))
- return (retval);
- if ((vcount(devvp) > 1) && (devvp != rootvp))
- return (EBUSY);
- if ((retval = vinvalbuf(devvp, V_SAVE, cred, p, 0, 0)))
- return (retval);
-
- ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
- if ((retval = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, p)))
- return (retval);
bp = NULL;
hfsmp = NULL;
mdbp = NULL;
minblksize = kHFSBlockSize;
+ /* Advisory locking should be handled at the VFS layer */
+ vfs_setlocklocal(mp);
+
/* Get the real physical block size. */
- if (VOP_IOCTL(devvp, DKIOCGETBLOCKSIZE, (caddr_t)&blksize, 0, cred, p)) {
+ if (VNOP_IOCTL(devvp, DKIOCGETBLOCKSIZE, (caddr_t)&blksize, 0, context)) {
retval = ENXIO;
goto error_exit;
}
if (blksize > 512) {
u_int32_t size512 = 512;
- if (VOP_IOCTL(devvp, DKIOCSETBLOCKSIZE, (caddr_t)&size512, FWRITE, cred, p)) {
+ if (VNOP_IOCTL(devvp, DKIOCSETBLOCKSIZE, (caddr_t)&size512, FWRITE, context)) {
retval = ENXIO;
goto error_exit;
}
}
/* Get the number of 512 byte physical blocks. */
- if (VOP_IOCTL(devvp, DKIOCGETBLOCKCOUNT, (caddr_t)&blkcnt, 0, cred, p)) {
+ if (VNOP_IOCTL(devvp, DKIOCGETBLOCKCOUNT, (caddr_t)&blkcnt, 0, context)) {
retval = ENXIO;
goto error_exit;
}
/* Compute an accurate disk size (i.e. within 512 bytes) */
- disksize = blkcnt * (u_int64_t)512;
+ disksize = (u_int64_t)blkcnt * (u_int64_t)512;
/*
- * There are only 31 bits worth of block count in
- * the buffer cache. So for large volumes a 4K
- * physical block size is needed.
+ * On Tiger it is not necessary to switch the device
+ * block size to be 4k if there are more than 31-bits
+ * worth of blocks but to insure compatibility with
+ * pre-Tiger systems we have to do it.
*/
if (blkcnt > (u_int64_t)0x000000007fffffff) {
minblksize = blksize = 4096;
}
+
/* Now switch to our prefered physical block size. */
if (blksize > 512) {
- if (VOP_IOCTL(devvp, DKIOCSETBLOCKSIZE, (caddr_t)&blksize, FWRITE, cred, p)) {
+ if (VNOP_IOCTL(devvp, DKIOCSETBLOCKSIZE, (caddr_t)&blksize, FWRITE, context)) {
retval = ENXIO;
goto error_exit;
}
/* Get the count of physical blocks. */
- if (VOP_IOCTL(devvp, DKIOCGETBLOCKCOUNT, (caddr_t)&blkcnt, 0, cred, p)) {
+ if (VNOP_IOCTL(devvp, DKIOCGETBLOCKCOUNT, (caddr_t)&blkcnt, 0, context)) {
retval = ENXIO;
goto error_exit;
}
}
-
/*
* At this point:
* minblksize is the minimum physical block size
* blksize has our prefered physical block size
* blkcnt has the total number of physical blocks
*/
- devvp->v_specsize = blksize;
-
- /* cache the IO attributes */
- if ((retval = vfs_init_io_attributes(devvp, mp))) {
- printf("hfs_mountfs: vfs_init_io_attributes returned %d\n",
- retval);
- return (retval);
- }
- if ((retval = meta_bread(devvp, HFS_PRI_SECTOR(blksize), blksize, cred, &bp))) {
+ mdb_offset = (daddr64_t)HFS_PRI_SECTOR(blksize);
+ if ((retval = (int)buf_meta_bread(devvp, mdb_offset, blksize, cred, &bp))) {
goto error_exit;
}
MALLOC(mdbp, HFSMasterDirectoryBlock *, kMDBSize, M_TEMP, M_WAITOK);
- bcopy(bp->b_data + HFS_PRI_OFFSET(blksize), mdbp, kMDBSize);
- brelse(bp);
+ bcopy((char *)buf_dataptr(bp) + HFS_PRI_OFFSET(blksize), mdbp, kMDBSize);
+ buf_brelse(bp);
bp = NULL;
MALLOC(hfsmp, struct hfsmount *, sizeof(struct hfsmount), M_HFSMNT, M_WAITOK);
bzero(hfsmp, sizeof(struct hfsmount));
-
- simple_lock_init(&hfsmp->hfs_renamelock);
-
+
/*
- * Init the volume information structure
- */
- mp->mnt_data = (qaddr_t)hfsmp;
+ * Init the volume information structure
+ */
+
+ lck_mtx_init(&hfsmp->hfs_mutex, hfs_mutex_group, hfs_lock_attr);
+ lck_mtx_init(&hfsmp->hfc_mutex, hfs_mutex_group, hfs_lock_attr);
+ lck_rw_init(&hfsmp->hfs_global_lock, hfs_rwlock_group, hfs_lock_attr);
+ lck_rw_init(&hfsmp->hfs_insync, hfs_rwlock_group, hfs_lock_attr);
+
+ vfs_setfsprivate(mp, hfsmp);
hfsmp->hfs_mp = mp; /* Make VFSTOHFS work */
- hfsmp->hfs_vcb.vcb_hfsmp = hfsmp; /* Make VCBTOHFS work */
- hfsmp->hfs_raw_dev = devvp->v_rdev;
+ hfsmp->hfs_raw_dev = vnode_specrdev(devvp);
hfsmp->hfs_devvp = devvp;
hfsmp->hfs_phys_block_size = blksize;
hfsmp->hfs_phys_block_count = blkcnt;
- hfsmp->hfs_media_writeable = 1;
- hfsmp->hfs_fs_ronly = ronly;
- hfsmp->hfs_unknownpermissions = ((mp->mnt_flag & MNT_UNKNOWNPERMISSIONS) != 0);
+ hfsmp->hfs_flags |= HFS_WRITEABLE_MEDIA;
+ if (ronly)
+ hfsmp->hfs_flags |= HFS_READ_ONLY;
+ if (((unsigned int)vfs_flags(mp)) & MNT_UNKNOWNPERMISSIONS)
+ hfsmp->hfs_flags |= HFS_UNKNOWN_PERMS;
for (i = 0; i < MAXQUOTAS; i++)
- hfsmp->hfs_qfiles[i].qf_vp = NULLVP;
+ dqfileinit(&hfsmp->hfs_qfiles[i]);
if (args) {
hfsmp->hfs_uid = (args->hfs_uid == (uid_t)VNOVAL) ? UNKNOWNUID : args->hfs_uid;
if (hfsmp->hfs_uid == 0xfffffffd) hfsmp->hfs_uid = UNKNOWNUID;
hfsmp->hfs_gid = (args->hfs_gid == (gid_t)VNOVAL) ? UNKNOWNGID : args->hfs_gid;
if (hfsmp->hfs_gid == 0xfffffffd) hfsmp->hfs_gid = UNKNOWNGID;
+ vfs_setowner(mp, hfsmp->hfs_uid, hfsmp->hfs_gid); /* tell the VFS */
if (args->hfs_mask != (mode_t)VNOVAL) {
hfsmp->hfs_dir_mask = args->hfs_mask & ALLPERMS;
if (args->flags & HFSFSMNT_NOXONFILES) {
mntwrapper = 1;
} else {
/* Even w/o explicit mount arguments, MNT_UNKNOWNPERMISSIONS requires setting up uid, gid, and mask: */
- if (mp->mnt_flag & MNT_UNKNOWNPERMISSIONS) {
+ if (((unsigned int)vfs_flags(mp)) & MNT_UNKNOWNPERMISSIONS) {
hfsmp->hfs_uid = UNKNOWNUID;
hfsmp->hfs_gid = UNKNOWNGID;
+ vfs_setowner(mp, hfsmp->hfs_uid, hfsmp->hfs_gid); /* tell the VFS */
hfsmp->hfs_dir_mask = UNKNOWNPERMISSIONS & ALLPERMS; /* 0777: rwx---rwx */
hfsmp->hfs_file_mask = UNKNOWNPERMISSIONS & DEFFILEMODE; /* 0666: no --x by default? */
}
}
/* Find out if disk media is writable. */
- if (VOP_IOCTL(devvp, DKIOCISWRITABLE, (caddr_t)&iswritable, 0, cred, p) == 0) {
+ if (VNOP_IOCTL(devvp, DKIOCISWRITABLE, (caddr_t)&iswritable, 0, context) == 0) {
if (iswritable)
- hfsmp->hfs_media_writeable = 1;
+ hfsmp->hfs_flags |= HFS_WRITEABLE_MEDIA;
else
- hfsmp->hfs_media_writeable = 0;
+ hfsmp->hfs_flags &= ~HFS_WRITEABLE_MEDIA;
+ }
+
+ // record the current time at which we're mounting this volume
+ {
+ struct timeval tv;
+ microtime(&tv);
+ hfsmp->hfs_mount_time = tv.tv_sec;
}
/* Mount a standard HFS disk */
if ((SWAP_BE16(mdbp->drSigWord) == kHFSSigWord) &&
(mntwrapper || (SWAP_BE16(mdbp->drEmbedSigWord) != kHFSPlusSigWord))) {
- if (devvp == rootvp) {
+ if ((vfs_flags(mp) & MNT_ROOTFS)) {
retval = EINVAL; /* Cannot root from HFS standard disks */
goto error_exit;
}
/* HFS disks can only use 512 byte physical blocks */
if (blksize > kHFSBlockSize) {
blksize = kHFSBlockSize;
- if (VOP_IOCTL(devvp, DKIOCSETBLOCKSIZE, (caddr_t)&blksize, FWRITE, cred, p)) {
+ if (VNOP_IOCTL(devvp, DKIOCSETBLOCKSIZE, (caddr_t)&blksize, FWRITE, context)) {
retval = ENXIO;
goto error_exit;
}
- if (VOP_IOCTL(devvp, DKIOCGETBLOCKCOUNT, (caddr_t)&blkcnt, 0, cred, p)) {
+ if (VNOP_IOCTL(devvp, DKIOCGETBLOCKCOUNT, (caddr_t)&blkcnt, 0, context)) {
retval = ENXIO;
goto error_exit;
}
- devvp->v_specsize = blksize;
hfsmp->hfs_phys_block_size = blksize;
hfsmp->hfs_phys_block_count = blkcnt;
}
} else /* Mount an HFS Plus disk */ {
HFSPlusVolumeHeader *vhp;
off_t embeddedOffset;
+ int jnl_disable = 0;
/* Get the embedded Volume Header */
if (SWAP_BE16(mdbp->drEmbedSigWord) == kHFSPlusSigWord) {
" a multiple of physical block size (%d);"
" switching to 512\n", blksize);
blksize = 512;
- if (VOP_IOCTL(devvp, DKIOCSETBLOCKSIZE,
- (caddr_t)&blksize, FWRITE, cred, p)) {
+ if (VNOP_IOCTL(devvp, DKIOCSETBLOCKSIZE,
+ (caddr_t)&blksize, FWRITE, context)) {
retval = ENXIO;
goto error_exit;
}
- if (VOP_IOCTL(devvp, DKIOCGETBLOCKCOUNT,
- (caddr_t)&blkcnt, 0, cred, p)) {
+ if (VNOP_IOCTL(devvp, DKIOCGETBLOCKCOUNT,
+ (caddr_t)&blkcnt, 0, context)) {
retval = ENXIO;
goto error_exit;
}
- /* XXX do we need to call vfs_init_io_attributes again? */
- devvp->v_specsize = blksize;
/* Note: relative block count adjustment */
hfsmp->hfs_phys_block_count *=
hfsmp->hfs_phys_block_size / blksize;
hfsmp->hfs_phys_block_count = disksize / blksize;
- retval = meta_bread(devvp, (embeddedOffset / blksize) +
- HFS_PRI_SECTOR(blksize), blksize, cred, &bp);
+ mdb_offset = (daddr64_t)((embeddedOffset / blksize) + HFS_PRI_SECTOR(blksize));
+ retval = (int)buf_meta_bread(devvp, mdb_offset, blksize, cred, &bp);
if (retval)
goto error_exit;
- bcopy(bp->b_data + HFS_PRI_OFFSET(blksize), mdbp, 512);
- brelse(bp);
+ bcopy((char *)buf_dataptr(bp) + HFS_PRI_OFFSET(blksize), mdbp, 512);
+ buf_brelse(bp);
bp = NULL;
vhp = (HFSPlusVolumeHeader*) mdbp;
vhp = (HFSPlusVolumeHeader*) mdbp;
}
+ // XXXdbg
+ //
+ hfsmp->jnl = NULL;
+ hfsmp->jvp = NULL;
+ if (args != NULL && (args->flags & HFSFSMNT_EXTENDED_ARGS) && args->journal_disable) {
+ jnl_disable = 1;
+ }
+
+ //
+ // We only initialize the journal here if the last person
+ // to mount this volume was journaling aware. Otherwise
+ // we delay journal initialization until later at the end
+ // of hfs_MountHFSPlusVolume() because the last person who
+ // mounted it could have messed things up behind our back
+ // (so we need to go find the .journal file, make sure it's
+ // the right size, re-sync up if it was moved, etc).
+ //
+ if ( (SWAP_BE32(vhp->lastMountedVersion) == kHFSJMountVersion)
+ && (SWAP_BE32(vhp->attributes) & kHFSVolumeJournaledMask)
+ && !jnl_disable) {
+
+ // if we're able to init the journal, mark the mount
+ // point as journaled.
+ //
+ if (hfs_early_journal_init(hfsmp, vhp, args, embeddedOffset, mdb_offset, mdbp, cred) == 0) {
+ vfs_setflags(mp, (uint64_t)((unsigned int)MNT_JOURNALED));
+ } else {
+ // if the journal failed to open, then set the lastMountedVersion
+ // to be "FSK!" which fsck_hfs will see and force the fsck instead
+ // of just bailing out because the volume is journaled.
+ if (!ronly) {
+ HFSPlusVolumeHeader *jvhp;
+
+ hfsmp->hfs_flags |= HFS_NEED_JNL_RESET;
+
+ if (mdb_offset == 0) {
+ mdb_offset = (daddr64_t)((embeddedOffset / blksize) + HFS_PRI_SECTOR(blksize));
+ }
+
+ bp = NULL;
+ retval = (int)buf_meta_bread(devvp, mdb_offset, blksize, cred, &bp);
+ if (retval == 0) {
+ jvhp = (HFSPlusVolumeHeader *)(buf_dataptr(bp) + HFS_PRI_OFFSET(blksize));
+
+ if (SWAP_BE16(jvhp->signature) == kHFSPlusSigWord || SWAP_BE16(jvhp->signature) == kHFSXSigWord) {
+ printf ("hfs(1): Journal replay fail. Writing lastMountVersion as FSK!\n");
+ jvhp->lastMountedVersion = SWAP_BE32(kFSKMountVersion);
+ buf_bwrite(bp);
+ } else {
+ buf_brelse(bp);
+ }
+ bp = NULL;
+ } else if (bp) {
+ buf_brelse(bp);
+ // clear this so the error exit path won't try to use it
+ bp = NULL;
+ }
+ }
+
+ // if this isn't the root device just bail out.
+ // If it is the root device we just continue on
+ // in the hopes that fsck_hfs will be able to
+ // fix any damage that exists on the volume.
+ if ( !(vfs_flags(mp) & MNT_ROOTFS)) {
+ retval = EINVAL;
+ goto error_exit;
+ }
+ }
+ }
+ // XXXdbg
+
(void) hfs_getconverter(0, &hfsmp->hfs_get_unicode, &hfsmp->hfs_get_hfsname);
- retval = hfs_MountHFSPlusVolume(hfsmp, vhp, embeddedOffset, disksize, p);
+ retval = hfs_MountHFSPlusVolume(hfsmp, vhp, embeddedOffset, disksize, p, args, cred);
/*
* If the backend didn't like our physical blocksize
* then retry with physical blocksize of 512.
printf("HFS Mount: could not use physical block size "
"(%d) switching to 512\n", blksize);
blksize = 512;
- if (VOP_IOCTL(devvp, DKIOCSETBLOCKSIZE, (caddr_t)&blksize, FWRITE, cred, p)) {
+ if (VNOP_IOCTL(devvp, DKIOCSETBLOCKSIZE, (caddr_t)&blksize, FWRITE, context)) {
retval = ENXIO;
goto error_exit;
}
- if (VOP_IOCTL(devvp, DKIOCGETBLOCKCOUNT, (caddr_t)&blkcnt, 0, cred, p)) {
+ if (VNOP_IOCTL(devvp, DKIOCGETBLOCKCOUNT, (caddr_t)&blkcnt, 0, context)) {
retval = ENXIO;
goto error_exit;
}
hfsmp->hfs_phys_block_count *= hfsmp->hfs_phys_block_size / blksize;
hfsmp->hfs_phys_block_size = blksize;
+ if (hfsmp->jnl) {
+ // close and re-open this with the new block size
+ journal_close(hfsmp->jnl);
+ hfsmp->jnl = NULL;
+ if (hfs_early_journal_init(hfsmp, vhp, args, embeddedOffset, mdb_offset, mdbp, cred) == 0) {
+ vfs_setflags(mp, (uint64_t)((unsigned int)MNT_JOURNALED));
+ } else {
+ // if the journal failed to open, then set the lastMountedVersion
+ // to be "FSK!" which fsck_hfs will see and force the fsck instead
+ // of just bailing out because the volume is journaled.
+ if (!ronly) {
+ HFSPlusVolumeHeader *jvhp;
+
+ hfsmp->hfs_flags |= HFS_NEED_JNL_RESET;
+
+ if (mdb_offset == 0) {
+ mdb_offset = (daddr64_t)((embeddedOffset / blksize) + HFS_PRI_SECTOR(blksize));
+ }
+
+ bp = NULL;
+ retval = (int)buf_meta_bread(devvp, mdb_offset, blksize, cred, &bp);
+ if (retval == 0) {
+ jvhp = (HFSPlusVolumeHeader *)(buf_dataptr(bp) + HFS_PRI_OFFSET(blksize));
+
+ if (SWAP_BE16(jvhp->signature) == kHFSPlusSigWord || SWAP_BE16(jvhp->signature) == kHFSXSigWord) {
+ printf ("hfs(2): Journal replay fail. Writing lastMountVersion as FSK!\n");
+ jvhp->lastMountedVersion = SWAP_BE32(kFSKMountVersion);
+ buf_bwrite(bp);
+ } else {
+ buf_brelse(bp);
+ }
+ bp = NULL;
+ } else if (bp) {
+ buf_brelse(bp);
+ // clear this so the error exit path won't try to use it
+ bp = NULL;
+ }
+ }
+
+ // if this isn't the root device just bail out.
+ // If it is the root device we just continue on
+ // in the hopes that fsck_hfs will be able to
+ // fix any damage that exists on the volume.
+ if ( !(vfs_flags(mp) & MNT_ROOTFS)) {
+ retval = EINVAL;
+ goto error_exit;
+ }
+ }
+ }
+
/* Try again with a smaller block size... */
- retval = hfs_MountHFSPlusVolume(hfsmp, vhp, embeddedOffset, disksize, p);
+ retval = hfs_MountHFSPlusVolume(hfsmp, vhp, embeddedOffset, disksize, p, args, cred);
}
if (retval)
(void) hfs_relconverter(0);
}
+ // save off a snapshot of the mtime from the previous mount
+ // (for matador).
+ hfsmp->hfs_last_mounted_mtime = hfsmp->hfs_mtime;
+
if ( retval ) {
goto error_exit;
}
- mp->mnt_stat.f_fsid.val[0] = (long)dev;
- mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum;
- mp->mnt_maxsymlinklen = 0;
- devvp->v_specflags |= SI_MOUNTEDON;
+ mp->mnt_vfsstat.f_fsid.val[0] = (long)dev;
+ mp->mnt_vfsstat.f_fsid.val[1] = vfs_typenum(mp);
+ vfs_setmaxsymlen(mp, 0);
+ mp->mnt_vtable->vfc_threadsafe = TRUE;
+ mp->mnt_vtable->vfc_vfsflags |= VFC_VFSNATIVEXATTR;
+ if (args) {
+ /*
+ * Set the free space warning levels for a non-root volume:
+ *
+ * Set the lower freespace limit (the level that will trigger a warning)
+ * to 5% of the volume size or 250MB, whichever is less, and the desired
+ * level (which will cancel the alert request) to 1/2 above that limit.
+ * Start looking for free space to drop below this level and generate a
+ * warning immediately if needed:
+ */
+ hfsmp->hfs_freespace_notify_warninglimit =
+ MIN(HFS_LOWDISKTRIGGERLEVEL / HFSTOVCB(hfsmp)->blockSize,
+ (HFSTOVCB(hfsmp)->totalBlocks / 100) * HFS_LOWDISKTRIGGERFRACTION);
+ hfsmp->hfs_freespace_notify_desiredlevel =
+ MIN(HFS_LOWDISKSHUTOFFLEVEL / HFSTOVCB(hfsmp)->blockSize,
+ (HFSTOVCB(hfsmp)->totalBlocks / 100) * HFS_LOWDISKSHUTOFFFRACTION);
+ } else {
+ /*
+ * Set the free space warning levels for the root volume:
+ *
+ * Set the lower freespace limit (the level that will trigger a warning)
+ * to 1% of the volume size or 50MB, whichever is less, and the desired
+ * level (which will cancel the alert request) to 2% or 75MB, whichever is less.
+ */
+ hfsmp->hfs_freespace_notify_warninglimit =
+ MIN(HFS_ROOTLOWDISKTRIGGERLEVEL / HFSTOVCB(hfsmp)->blockSize,
+ (HFSTOVCB(hfsmp)->totalBlocks / 100) * HFS_ROOTLOWDISKTRIGGERFRACTION);
+ hfsmp->hfs_freespace_notify_desiredlevel =
+ MIN(HFS_ROOTLOWDISKSHUTOFFLEVEL / HFSTOVCB(hfsmp)->blockSize,
+ (HFSTOVCB(hfsmp)->totalBlocks / 100) * HFS_ROOTLOWDISKSHUTOFFFRACTION);
+ };
+
+ /*
+ * Start looking for free space to drop below this level and generate a
+ * warning immediately if needed:
+ */
+ hfsmp->hfs_notification_conditions = 0;
+ hfs_generate_volume_notifications(hfsmp);
+
if (ronly == 0) {
(void) hfs_flushvolumeheader(hfsmp, MNT_WAIT, 0);
}
error_exit:
if (bp)
- brelse(bp);
+ buf_brelse(bp);
if (mdbp)
FREE(mdbp, M_TEMP);
- (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, cred, p);
+
+ if (hfsmp && hfsmp->jvp && hfsmp->jvp != hfsmp->hfs_devvp) {
+ (void)VNOP_CLOSE(hfsmp->jvp, ronly ? FREAD : FREAD|FWRITE, context);
+ hfsmp->jvp = NULL;
+ }
if (hfsmp) {
FREE(hfsmp, M_HFSMNT);
- mp->mnt_data = (qaddr_t)0;
+ vfs_setfsprivate(mp, NULL);
}
return (retval);
}
*/
/* ARGSUSED */
static int
-hfs_start(mp, flags, p)
- struct mount *mp;
- int flags;
- struct proc *p;
+hfs_start(__unused struct mount *mp, __unused int flags, __unused vfs_context_t context)
{
return (0);
}
* unmount system call
*/
static int
-hfs_unmount(mp, mntflags, p)
- struct mount *mp;
- int mntflags;
- struct proc *p;
+hfs_unmount(struct mount *mp, int mntflags, vfs_context_t context)
{
+ struct proc *p = vfs_context_proc(context);
struct hfsmount *hfsmp = VFSTOHFS(mp);
int retval = E_NONE;
int flags;
int force;
+ int started_tr = 0;
flags = 0;
force = 0;
if ((retval = hfs_flushfiles(mp, flags, p)) && !force)
return (retval);
+ if (hfsmp->hfs_flags & HFS_METADATA_ZONE)
+ (void) hfs_recording_suspend(hfsmp);
+
/*
* Flush out the b-trees, volume bitmap and Volume Header
*/
- if (hfsmp->hfs_fs_ronly == 0) {
- retval = VOP_FSYNC(HFSTOVCB(hfsmp)->catalogRefNum, NOCRED, MNT_WAIT, p);
- if (retval && !force)
- return (retval);
+ if ((hfsmp->hfs_flags & HFS_READ_ONLY) == 0) {
+ hfs_start_transaction(hfsmp);
+ started_tr = 1;
+
+ if (hfsmp->hfs_attribute_vp) {
+ (void) hfs_lock(VTOC(hfsmp->hfs_attribute_vp), HFS_EXCLUSIVE_LOCK);
+ retval = hfs_fsync(hfsmp->hfs_attribute_vp, MNT_WAIT, 0, p);
+ hfs_unlock(VTOC(hfsmp->hfs_attribute_vp));
+ if (retval && !force)
+ goto err_exit;
+ }
- retval = VOP_FSYNC(HFSTOVCB(hfsmp)->extentsRefNum, NOCRED, MNT_WAIT, p);
+ (void) hfs_lock(VTOC(hfsmp->hfs_catalog_vp), HFS_EXCLUSIVE_LOCK);
+ retval = hfs_fsync(hfsmp->hfs_catalog_vp, MNT_WAIT, 0, p);
+ hfs_unlock(VTOC(hfsmp->hfs_catalog_vp));
+ if (retval && !force)
+ goto err_exit;
+
+ (void) hfs_lock(VTOC(hfsmp->hfs_extents_vp), HFS_EXCLUSIVE_LOCK);
+ retval = hfs_fsync(hfsmp->hfs_extents_vp, MNT_WAIT, 0, p);
+ hfs_unlock(VTOC(hfsmp->hfs_extents_vp));
if (retval && !force)
- return (retval);
+ goto err_exit;
+
+ if (hfsmp->hfs_allocation_vp) {
+ (void) hfs_lock(VTOC(hfsmp->hfs_allocation_vp), HFS_EXCLUSIVE_LOCK);
+ retval = hfs_fsync(hfsmp->hfs_allocation_vp, MNT_WAIT, 0, p);
+ hfs_unlock(VTOC(hfsmp->hfs_allocation_vp));
+ if (retval && !force)
+ goto err_exit;
+ }
- if (retval = VOP_FSYNC(hfsmp->hfs_devvp, NOCRED, MNT_WAIT, p)) {
- if (!force)
- return (retval);
+ if (hfsmp->hfc_filevp && vnode_issystem(hfsmp->hfc_filevp)) {
+ retval = hfs_fsync(hfsmp->hfc_filevp, MNT_WAIT, 0, p);
+ if (retval && !force)
+ goto err_exit;
}
-
+#if 0
/* See if this volume is damaged, is so do not unmount cleanly */
if (HFSTOVCB(hfsmp)->vcbFlags & kHFS_DamagedVolume) {
HFSTOVCB(hfsmp)->vcbAtrb &= ~kHFSVolumeUnmountedMask;
} else {
HFSTOVCB(hfsmp)->vcbAtrb |= kHFSVolumeUnmountedMask;
}
-
+#else
+ HFSTOVCB(hfsmp)->vcbAtrb |= kHFSVolumeUnmountedMask;
+#endif
retval = hfs_flushvolumeheader(hfsmp, MNT_WAIT, 0);
if (retval) {
HFSTOVCB(hfsmp)->vcbAtrb &= ~kHFSVolumeUnmountedMask;
if (!force)
- return (retval); /* could not flush everything */
+ goto err_exit; /* could not flush everything */
}
+
+ hfs_end_transaction(hfsmp);
+ started_tr = 0;
}
+ if (hfsmp->jnl) {
+ journal_flush(hfsmp->jnl);
+ }
+
/*
* Invalidate our caches and release metadata vnodes
*/
(void) hfsUnmount(hfsmp, p);
+ /*
+ * Last chance to dump unreferenced system files.
+ */
+ (void) vflush(mp, NULLVP, FORCECLOSE);
+
if (HFSTOVCB(hfsmp)->vcbSigWord == kHFSSigWord)
(void) hfs_relconverter(hfsmp->hfs_encoding);
- hfsmp->hfs_devvp->v_specflags &= ~SI_MOUNTEDON;
- retval = VOP_CLOSE(hfsmp->hfs_devvp,
- hfsmp->hfs_fs_ronly ? FREAD : FREAD|FWRITE,
- NOCRED, p);
- if (retval && !force)
- return(retval);
+ // XXXdbg
+ if (hfsmp->jnl) {
+ journal_close(hfsmp->jnl);
+ hfsmp->jnl = NULL;
+ }
+
+ VNOP_FSYNC(hfsmp->hfs_devvp, MNT_WAIT, context);
+
+ if (hfsmp->jvp && hfsmp->jvp != hfsmp->hfs_devvp) {
+ retval = VNOP_CLOSE(hfsmp->jvp,
+ hfsmp->hfs_flags & HFS_READ_ONLY ? FREAD : FREAD|FWRITE,
+ context);
+ vnode_put(hfsmp->jvp);
+ hfsmp->jvp = NULL;
+ }
+ // XXXdbg
+
+#ifdef HFS_SPARSE_DEV
+ /* Drop our reference on the backing fs (if any). */
+ if ((hfsmp->hfs_flags & HFS_HAS_SPARSE_DEVICE) && hfsmp->hfs_backingfs_rootvp) {
+ struct vnode * tmpvp;
- vrele(hfsmp->hfs_devvp);
+ hfsmp->hfs_flags &= ~HFS_HAS_SPARSE_DEVICE;
+ tmpvp = hfsmp->hfs_backingfs_rootvp;
+ hfsmp->hfs_backingfs_rootvp = NULLVP;
+ vnode_rele(tmpvp);
+ }
+#endif /* HFS_SPARSE_DEV */
+ lck_mtx_destroy(&hfsmp->hfc_mutex, hfs_mutex_group);
FREE(hfsmp, M_HFSMNT);
- mp->mnt_data = (qaddr_t)0;
+
return (0);
+
+ err_exit:
+ if (started_tr) {
+ hfs_end_transaction(hfsmp);
+ }
+ return retval;
}
/*
* Return the root of a filesystem.
- *
- * OUT - vpp, should be locked and vget()'d (to increment usecount and lock)
*/
static int
-hfs_root(mp, vpp)
- struct mount *mp;
- struct vnode **vpp;
+hfs_vfs_root(struct mount *mp, struct vnode **vpp, __unused vfs_context_t context)
{
- struct vnode *nvp;
- int retval;
- UInt32 rootObjID = kRootDirID;
-
- if ((retval = VFS_VGET(mp, &rootObjID, &nvp)))
- return (retval);
-
- *vpp = nvp;
- return (0);
-}
+ return hfs_vget(VFSTOHFS(mp), (cnid_t)kHFSRootFolderID, vpp, 1);
+}
/*
* Do operations associated with quotas
*/
-int
-hfs_quotactl(mp, cmds, uid, arg, p)
- struct mount *mp;
- int cmds;
- uid_t uid;
- caddr_t arg;
- struct proc *p;
+static int
+hfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t datap, vfs_context_t context)
{
+ struct proc *p = vfs_context_proc(context);
int cmd, type, error;
#if !QUOTA
- return (EOPNOTSUPP);
+ return (ENOTSUP);
#else
if (uid == -1)
- uid = p->p_cred->p_ruid;
+ uid = vfs_context_ucred(context)->cr_ruid;
cmd = cmds >> SUBCMDSHIFT;
switch (cmd) {
case Q_QUOTASTAT:
break;
case Q_GETQUOTA:
- if (uid == p->p_cred->p_ruid)
+ if (uid == vfs_context_ucred(context)->cr_ruid)
break;
/* fall through */
default:
- if (error = suser(p->p_ucred, &p->p_acflag))
+ if ( (error = vfs_context_suser(context)) )
return (error);
}
type = cmds & SUBCMDMASK;
if ((u_int)type >= MAXQUOTAS)
return (EINVAL);
- if (vfs_busy(mp, LK_NOWAIT, 0, p))
+ if (vfs_busy(mp, LK_NOWAIT))
return (0);
switch (cmd) {
case Q_QUOTAON:
- error = hfs_quotaon(p, mp, type, arg, UIO_USERSPACE);
+ error = hfs_quotaon(p, mp, type, datap);
break;
case Q_QUOTAOFF:
break;
case Q_SETQUOTA:
- error = hfs_setquota(mp, uid, type, arg);
+ error = hfs_setquota(mp, uid, type, datap);
break;
case Q_SETUSE:
- error = hfs_setuse(mp, uid, type, arg);
+ error = hfs_setuse(mp, uid, type, datap);
break;
case Q_GETQUOTA:
- error = hfs_getquota(mp, uid, type, arg);
+ error = hfs_getquota(mp, uid, type, datap);
break;
case Q_SYNC:
break;
case Q_QUOTASTAT:
- error = hfs_quotastat(mp, type, arg);
+ error = hfs_quotastat(mp, type, datap);
break;
default:
error = EINVAL;
break;
}
- vfs_unbusy(mp, p);
+ vfs_unbusy(mp);
+
return (error);
#endif /* QUOTA */
}
+/* Subtype is composite of bits */
+#define HFS_SUBTYPE_JOURNALED 0x01
+#define HFS_SUBTYPE_CASESENSITIVE 0x02
+/* bits 2 - 6 reserved */
+#define HFS_SUBTYPE_STANDARDHFS 0x80
/*
* Get file system statistics.
*/
static int
-hfs_statfs(mp, sbp, p)
- struct mount *mp;
- register struct statfs *sbp;
- struct proc *p;
+hfs_statfs(struct mount *mp, register struct vfsstatfs *sbp, __unused vfs_context_t context)
{
ExtendedVCB *vcb = VFSTOVCB(mp);
struct hfsmount *hfsmp = VFSTOHFS(mp);
u_long freeCNIDs;
+ uint16_t subtype = 0;
freeCNIDs = (u_long)0xFFFFFFFF - (u_long)vcb->vcbNxtCNID;
- sbp->f_bsize = vcb->blockSize;
- sbp->f_iosize = hfsmp->hfs_logBlockSize;
- sbp->f_blocks = vcb->totalBlocks;
- sbp->f_bfree = hfs_freeblks(hfsmp, 0);
- sbp->f_bavail = hfs_freeblks(hfsmp, 1);
- sbp->f_files = vcb->totalBlocks - 2; /* max files is constrained by total blocks */
- sbp->f_ffree = MIN(freeCNIDs, sbp->f_bavail);
-
- sbp->f_type = 0;
- if (sbp != &mp->mnt_stat) {
- sbp->f_type = mp->mnt_vfc->vfc_typenum;
- bcopy((caddr_t)mp->mnt_stat.f_mntonname,
- (caddr_t)&sbp->f_mntonname[0], MNAMELEN);
- bcopy((caddr_t)mp->mnt_stat.f_mntfromname,
- (caddr_t)&sbp->f_mntfromname[0], MNAMELEN);
+ sbp->f_bsize = (uint32_t)vcb->blockSize;
+ sbp->f_iosize = (size_t)(MAX_UPL_TRANSFER * PAGE_SIZE);
+ sbp->f_blocks = (uint64_t)((unsigned long)vcb->totalBlocks);
+ sbp->f_bfree = (uint64_t)((unsigned long )hfs_freeblks(hfsmp, 0));
+ sbp->f_bavail = (uint64_t)((unsigned long )hfs_freeblks(hfsmp, 1));
+ sbp->f_files = (uint64_t)((unsigned long )(vcb->totalBlocks - 2)); /* max files is constrained by total blocks */
+ sbp->f_ffree = (uint64_t)((unsigned long )(MIN(freeCNIDs, sbp->f_bavail)));
+
+ /*
+ * Subtypes (flavors) for HFS
+ * 0: Mac OS Extended
+ * 1: Mac OS Extended (Journaled)
+ * 2: Mac OS Extended (Case Sensitive)
+ * 3: Mac OS Extended (Case Sensitive, Journaled)
+ * 4 - 127: Reserved
+ * 128: Mac OS Standard
+ *
+ */
+ if (hfsmp->hfs_flags & HFS_STANDARD) {
+ subtype = HFS_SUBTYPE_STANDARDHFS;
+ } else /* HFS Plus */ {
+ if (hfsmp->jnl)
+ subtype |= HFS_SUBTYPE_JOURNALED;
+ if (hfsmp->hfs_flags & HFS_CASE_SENSITIVE)
+ subtype |= HFS_SUBTYPE_CASESENSITIVE;
}
+ sbp->f_fssubtype = subtype;
+
return (0);
}
+//
+// XXXdbg -- this is a callback to be used by the journal to
+// get meta data blocks flushed out to disk.
+//
+// XXXdbg -- be smarter and don't flush *every* block on each
+// call. try to only flush some so we don't wind up
+// being too synchronous.
+//
+__private_extern__
+void
+hfs_sync_metadata(void *arg)
+{
+ struct mount *mp = (struct mount *)arg;
+ struct hfsmount *hfsmp;
+ ExtendedVCB *vcb;
+ buf_t bp;
+ int sectorsize, retval;
+ daddr64_t priIDSector;
+ hfsmp = VFSTOHFS(mp);
+ vcb = HFSTOVCB(hfsmp);
+
+ // now make sure the super block is flushed
+ sectorsize = hfsmp->hfs_phys_block_size;
+ priIDSector = (daddr64_t)((vcb->hfsPlusIOPosOffset / sectorsize) +
+ HFS_PRI_SECTOR(sectorsize));
+ retval = (int)buf_meta_bread(hfsmp->hfs_devvp, priIDSector, sectorsize, NOCRED, &bp);
+ if (retval != 0) {
+ panic("hfs: sync_metadata: can't read super-block?! (retval 0x%x, priIDSector)\n",
+ retval, priIDSector);
+ }
+
+ if (retval == 0 && ((buf_flags(bp) & (B_DELWRI | B_LOCKED)) == B_DELWRI)) {
+ buf_bwrite(bp);
+ } else if (bp) {
+ buf_brelse(bp);
+ }
+
+ // the alternate super block...
+ // XXXdbg - we probably don't need to do this each and every time.
+ // hfs_btreeio.c:FlushAlternate() should flag when it was
+ // written...
+ if (hfsmp->hfs_alt_id_sector) {
+ retval = (int)buf_meta_bread(hfsmp->hfs_devvp, hfsmp->hfs_alt_id_sector, sectorsize, NOCRED, &bp);
+ if (retval == 0 && ((buf_flags(bp) & (B_DELWRI | B_LOCKED)) == B_DELWRI)) {
+ buf_bwrite(bp);
+ } else if (bp) {
+ buf_brelse(bp);
+ }
+ }
+}
+
+
+struct hfs_sync_cargs {
+ kauth_cred_t cred;
+ struct proc *p;
+ int waitfor;
+ int error;
+};
+
+
+static int
+hfs_sync_callback(struct vnode *vp, void *cargs)
+{
+ struct cnode *cp;
+ struct hfs_sync_cargs *args;
+ int error;
+
+ args = (struct hfs_sync_cargs *)cargs;
+
+ if (hfs_lock(VTOC(vp), HFS_EXCLUSIVE_LOCK) != 0) {
+ return (VNODE_RETURNED);
+ }
+ cp = VTOC(vp);
+
+ if ((cp->c_flag & C_MODIFIED) ||
+ (cp->c_touch_acctime | cp->c_touch_chgtime | cp->c_touch_modtime) ||
+ vnode_hasdirtyblks(vp)) {
+ error = hfs_fsync(vp, args->waitfor, 0, args->p);
+
+ if (error)
+ args->error = error;
+ }
+ hfs_unlock(cp);
+ return (VNODE_RETURNED);
+}
+
+
+
/*
* Go through the disk queues to initiate sandbagged IO;
* go through the inodes to write those that have been modified;
* Note: we are always called with the filesystem marked `MPBUSY'.
*/
static int
-hfs_sync(mp, waitfor, cred, p)
- struct mount *mp;
- int waitfor;
- struct ucred *cred;
- struct proc *p;
+hfs_sync(struct mount *mp, int waitfor, vfs_context_t context)
{
- struct vnode *nvp, *vp;
+ struct proc *p = vfs_context_proc(context);
struct cnode *cp;
struct hfsmount *hfsmp;
ExtendedVCB *vcb;
- struct vnode *meta_vp[3];
+ struct vnode *meta_vp[4];
int i;
int error, allerror = 0;
+ struct hfs_sync_cargs args;
/*
* During MNT_UPDATE hfs_changefs might be manipulating
* vnodes so back off
*/
- if (mp->mnt_flag & MNT_UPDATE)
+ if (((uint32_t)vfs_flags(mp)) & MNT_UPDATE) /* XXX MNT_UPDATE may not be visible here */
return (0);
hfsmp = VFSTOHFS(mp);
- if (hfsmp->hfs_fs_ronly != 0) {
- panic("update: rofs mod");
- };
+ if (hfsmp->hfs_flags & HFS_READ_ONLY)
+ return (EROFS);
+
+ /* skip over frozen volumes */
+ if (!lck_rw_try_lock_shared(&hfsmp->hfs_insync))
+ return 0;
+ args.cred = vfs_context_proc(context);
+ args.waitfor = waitfor;
+ args.p = p;
+ args.error = 0;
/*
- * Write back each 'modified' vnode
+ * hfs_sync_callback will be called for each vnode
+ * hung off of this mount point... the vnode will be
+ * properly referenced and unreferenced around the callback
*/
+ vnode_iterate(mp, 0, hfs_sync_callback, (void *)&args);
-loop:
- simple_lock(&mntvnode_slock);
- for (vp = mp->mnt_vnodelist.lh_first; vp != NULL; vp = nvp) {
- int didhold;
- /*
- * If the vnode that we are about to sync is no longer
- * associated with this mount point, start over.
- */
- if (vp->v_mount != mp) {
- simple_unlock(&mntvnode_slock);
- goto loop;
- }
- simple_lock(&vp->v_interlock);
- nvp = vp->v_mntvnodes.le_next;
- cp = VTOC(vp);
-
- if ((vp->v_flag & VSYSTEM) || (vp->v_type == VNON) ||
- (((cp->c_flag & (C_ACCESS | C_CHANGE | C_MODIFIED | C_UPDATE)) == 0) &&
- (vp->v_dirtyblkhd.lh_first == NULL) && !(vp->v_flag & VHASDIRTY))) {
- simple_unlock(&vp->v_interlock);
- simple_unlock(&mntvnode_slock);
- simple_lock(&mntvnode_slock);
- continue;
- }
-
- simple_unlock(&mntvnode_slock);
- error = vget(vp, LK_EXCLUSIVE | LK_NOWAIT | LK_INTERLOCK, p);
- if (error) {
- if (error == ENOENT)
- goto loop;
- simple_lock(&mntvnode_slock);
- continue;
- }
-
- didhold = ubc_hold(vp);
- if ((error = VOP_FSYNC(vp, cred, waitfor, p))) {
- allerror = error;
- };
- VOP_UNLOCK(vp, 0, p);
- if (didhold)
- ubc_rele(vp);
- vrele(vp);
- simple_lock(&mntvnode_slock);
- };
+ if (args.error)
+ allerror = args.error;
vcb = HFSTOVCB(hfsmp);
meta_vp[0] = vcb->extentsRefNum;
meta_vp[1] = vcb->catalogRefNum;
meta_vp[2] = vcb->allocationsRefNum; /* This is NULL for standard HFS */
+ meta_vp[3] = hfsmp->hfs_attribute_vp; /* Optional file */
/* Now sync our three metadata files */
- for (i = 0; i < 3; ++i) {
+ for (i = 0; i < 4; ++i) {
struct vnode *btvp;
- btvp = btvp = meta_vp[i];;
- if ((btvp==0) || (btvp->v_type == VNON) || (btvp->v_mount != mp))
+ btvp = meta_vp[i];;
+ if ((btvp==0) || (vnode_mount(btvp) != mp))
continue;
- simple_lock(&btvp->v_interlock);
+
+ /* XXX use hfs_systemfile_lock instead ? */
+ (void) hfs_lock(VTOC(btvp), HFS_EXCLUSIVE_LOCK);
cp = VTOC(btvp);
- if (((cp->c_flag & (C_ACCESS | C_CHANGE | C_MODIFIED | C_UPDATE)) == 0) &&
- (btvp->v_dirtyblkhd.lh_first == NULL) && !(btvp->v_flag & VHASDIRTY)) {
- simple_unlock(&btvp->v_interlock);
+
+ if (((cp->c_flag & C_MODIFIED) == 0) &&
+ (cp->c_touch_acctime == 0) &&
+ (cp->c_touch_chgtime == 0) &&
+ (cp->c_touch_modtime == 0) &&
+ vnode_hasdirtyblks(btvp) == 0) {
+ hfs_unlock(VTOC(btvp));
continue;
}
- simple_unlock(&mntvnode_slock);
- error = vget(btvp, LK_EXCLUSIVE | LK_NOWAIT | LK_INTERLOCK, p);
+ error = vnode_get(btvp);
if (error) {
- simple_lock(&mntvnode_slock);
+ hfs_unlock(VTOC(btvp));
continue;
}
- if ((error = VOP_FSYNC(btvp, cred, waitfor, p)))
+ if ((error = hfs_fsync(btvp, waitfor, 0, p)))
allerror = error;
- VOP_UNLOCK(btvp, 0, p);
- vrele(btvp);
- simple_lock(&mntvnode_slock);
- };
- simple_unlock(&mntvnode_slock);
+ hfs_unlock(cp);
+ vnode_put(btvp);
+ };
/*
* Force stale file system control information to be flushed.
*/
if (vcb->vcbSigWord == kHFSSigWord) {
- if ((error = VOP_FSYNC(hfsmp->hfs_devvp, cred, waitfor, p)))
+ if ((error = VNOP_FSYNC(hfsmp->hfs_devvp, waitfor, context))) {
allerror = error;
+ }
}
#if QUOTA
hfs_qsync(mp);
#endif /* QUOTA */
+
+ hfs_hotfilesync(hfsmp, p);
/*
* Write back modified superblock.
*/
if (IsVCBDirty(vcb)) {
error = hfs_flushvolumeheader(hfsmp, waitfor, 0);
- if (error)
- allerror = error;
+ if (error)
+ allerror = error;
+ }
+
+ if (hfsmp->jnl) {
+ journal_flush(hfsmp->jnl);
}
+ lck_rw_unlock_shared(&hfsmp->hfs_insync);
return (allerror);
}
* those rights via. exflagsp and credanonp
*/
static int
-hfs_fhtovp(mp, fhp, nam, vpp, exflagsp, credanonp)
- register struct mount *mp;
- struct fid *fhp;
- struct mbuf *nam;
- struct vnode **vpp;
- int *exflagsp;
- struct ucred **credanonp;
+hfs_fhtovp(struct mount *mp, int fhlen, unsigned char *fhp, struct vnode **vpp, vfs_context_t context)
{
struct hfsfid *hfsfhp;
struct vnode *nvp;
int result;
- struct netcred *np;
*vpp = NULL;
hfsfhp = (struct hfsfid *)fhp;
- /*
- * Get the export permission structure for this <mp, client> tuple.
- */
- np = vfs_export_lookup(mp, &VFSTOHFS(mp)->hfs_export, nam);
- if (np == NULL) {
- return EACCES;
- };
+ if (fhlen < sizeof(struct hfsfid))
+ return (EINVAL);
- result = VFS_VGET(mp, &hfsfhp->hfsfid_cnid, &nvp);
- if (result) return result;
- if (nvp == NULL) return ESTALE;
+ result = hfs_vget(VFSTOHFS(mp), hfsfhp->hfsfid_cnid, &nvp, 0);
+ if (result) {
+ if (result == ENOENT)
+ result = ESTALE;
+ return result;
+ }
/* The createtime can be changed by hfs_setattr or hfs_setattrlist.
* For NFS, we are assuming that only if the createtime was moved
* wrap number and use that for generation number. For now do this.
*/
if ((hfsfhp->hfsfid_gen < VTOC(nvp)->c_itime)) {
- vput(nvp);
+ hfs_unlock(VTOC(nvp));
+ vnode_put(nvp);
return (ESTALE);
- };
-
+ }
*vpp = nvp;
- *exflagsp = np->netc_exflags;
- *credanonp = &np->netc_anon;
-
+
+ hfs_unlock(VTOC(nvp));
return (0);
}
*/
/* ARGSUSED */
static int
-hfs_vptofh(vp, fhp)
- struct vnode *vp;
- struct fid *fhp;
+hfs_vptofh(struct vnode *vp, int *fhlenp, unsigned char *fhp, vfs_context_t context)
{
struct cnode *cp;
struct hfsfid *hfsfhp;
if (ISHFS(VTOVCB(vp)))
- return (EOPNOTSUPP); /* hfs standard is not exportable */
+ return (ENOTSUP); /* hfs standard is not exportable */
+
+ if (*fhlenp < (int)sizeof(struct hfsfid))
+ return (EOVERFLOW);
cp = VTOC(vp);
hfsfhp = (struct hfsfid *)fhp;
- hfsfhp->hfsfid_len = sizeof(struct hfsfid);
- hfsfhp->hfsfid_pad = 0;
- hfsfhp->hfsfid_cnid = cp->c_cnid;
+ hfsfhp->hfsfid_cnid = cp->c_fileid;
hfsfhp->hfsfid_gen = cp->c_itime;
+ *fhlenp = sizeof(struct hfsfid);
return (0);
}
* Initial HFS filesystems, done only once.
*/
static int
-hfs_init(vfsp)
- struct vfsconf *vfsp;
+hfs_init(__unused struct vfsconf *vfsp)
{
static int done = 0;
dqinit();
#endif /* QUOTA */
- /*
- * Allocate Catalog Iterator cache...
- */
- (void) InitCatalogCache();
+ BTReserveSetup();
+
+
+ hfs_lock_attr = lck_attr_alloc_init();
+ hfs_group_attr = lck_grp_attr_alloc_init();
+ hfs_mutex_group = lck_grp_alloc_init("hfs-mutex", hfs_group_attr);
+ hfs_rwlock_group = lck_grp_alloc_init("hfs-rwlock", hfs_group_attr);
+
+ /* Turn on lock debugging */
+ //lck_attr_setdebug(hfs_lock_attr);
+
+
+ return (0);
+}
+
+static int
+hfs_getmountpoint(vp, hfsmpp)
+ struct vnode *vp;
+ struct hfsmount **hfsmpp;
+{
+ struct hfsmount * hfsmp;
+ char fstypename[MFSNAMELEN];
+
+ if (vp == NULL)
+ return (EINVAL);
+
+ if (!vnode_isvroot(vp))
+ return (EINVAL);
+
+ vnode_vfsname(vp, fstypename);
+ if (strcmp(fstypename, "hfs") != 0)
+ return (EINVAL);
+
+ hfsmp = VTOHFS(vp);
+
+ if (HFSTOVCB(hfsmp)->vcbSigWord == kHFSSigWord)
+ return (EINVAL);
+
+ *hfsmpp = hfsmp;
return (0);
}
+// XXXdbg
+#include <sys/filedesc.h>
/*
* HFS filesystem related variables.
*/
static int
-hfs_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
- int *name;
- u_int namelen;
- void *oldp;
- size_t *oldlenp;
- void *newp;
- size_t newlen;
- struct proc *p;
+hfs_sysctl(int *name, __unused u_int namelen, user_addr_t oldp, size_t *oldlenp,
+ user_addr_t newp, size_t newlen, vfs_context_t context)
{
- extern u_int32_t hfs_encodingbias;
+ struct proc *p = vfs_context_proc(context);
+ int error;
+ struct hfsmount *hfsmp;
/* all sysctl names at this level are terminal */
- if (namelen != 1)
- return (ENOTDIR); /* overloaded */
- if (name[0] == HFS_ENCODINGBIAS)
- return (sysctl_int(oldp, oldlenp, newp, newlen,
- &hfs_encodingbias));
+ if (name[0] == HFS_ENCODINGBIAS) {
+ u_int32_t bias;
+
+ bias = hfs_getencodingbias();
+ error = sysctl_int(oldp, oldlenp, newp, newlen, &bias);
+ if (error == 0 && newp)
+ hfs_setencodingbias(bias);
+ return (error);
+
+ } else if (name[0] == HFS_EXTEND_FS) {
+ u_int64_t newsize;
+ vnode_t vp = p->p_fd->fd_cdir;
+
+ if (newp == USER_ADDR_NULL || vp == NULL)
+ return (EINVAL);
+ if ((error = hfs_getmountpoint(vp, &hfsmp)))
+ return (error);
+ error = sysctl_quad(oldp, oldlenp, newp, newlen, &newsize);
+ if (error)
+ return (error);
+
+ error = hfs_extendfs(hfsmp, newsize, context);
+ return (error);
+
+ } else if (name[0] == HFS_ENCODINGHINT) {
+ size_t bufsize;
+ size_t bytes;
+ u_int32_t hint;
+ u_int16_t *unicode_name;
+ char *filename;
+
+ bufsize = MAX(newlen * 3, MAXPATHLEN);
+ MALLOC(filename, char *, newlen, M_TEMP, M_WAITOK);
+ MALLOC(unicode_name, u_int16_t *, bufsize, M_TEMP, M_WAITOK);
+
+ error = copyin(newp, (caddr_t)filename, newlen);
+ if (error == 0) {
+ error = utf8_decodestr(filename, newlen - 1, unicode_name,
+ &bytes, bufsize, 0, UTF_DECOMPOSED);
+ if (error == 0) {
+ hint = hfs_pickencoding(unicode_name, bytes / 2);
+ error = sysctl_int(oldp, oldlenp, USER_ADDR_NULL, 0, &hint);
+ }
+ }
+ FREE(unicode_name, M_TEMP);
+ FREE(filename, M_TEMP);
+ return (error);
+
+ } else if (name[0] == HFS_ENABLE_JOURNALING) {
+ // make the file system journaled...
+ struct vnode *vp = p->p_fd->fd_cdir, *jvp;
+ ExtendedVCB *vcb;
+ struct cat_attr jnl_attr, jinfo_attr;
+ struct cat_fork jnl_fork, jinfo_fork;
+ void *jnl = NULL;
+ int lockflags;
+
+ /* Only root can enable journaling */
+ if (!is_suser()) {
+ return (EPERM);
+ }
+ if (vp == NULL)
+ return EINVAL;
+
+ hfsmp = VTOHFS(vp);
+ if (hfsmp->hfs_flags & HFS_READ_ONLY) {
+ return EROFS;
+ }
+ if (HFSTOVCB(hfsmp)->vcbSigWord == kHFSSigWord) {
+ printf("hfs: can't make a plain hfs volume journaled.\n");
+ return EINVAL;
+ }
+
+ if (hfsmp->jnl) {
+ printf("hfs: volume @ mp 0x%x is already journaled!\n", vnode_mount(vp));
+ return EAGAIN;
+ }
+
+ vcb = HFSTOVCB(hfsmp);
+ lockflags = hfs_systemfile_lock(hfsmp, SFL_CATALOG | SFL_EXTENTS, HFS_EXCLUSIVE_LOCK);
+ if (BTHasContiguousNodes(VTOF(vcb->catalogRefNum)) == 0 ||
+ BTHasContiguousNodes(VTOF(vcb->extentsRefNum)) == 0) {
+
+ printf("hfs: volume has a btree w/non-contiguous nodes. can not enable journaling.\n");
+ hfs_systemfile_unlock(hfsmp, lockflags);
+ return EINVAL;
+ }
+ hfs_systemfile_unlock(hfsmp, lockflags);
+
+ // make sure these both exist!
+ if ( GetFileInfo(vcb, kHFSRootFolderID, ".journal_info_block", &jinfo_attr, &jinfo_fork) == 0
+ || GetFileInfo(vcb, kHFSRootFolderID, ".journal", &jnl_attr, &jnl_fork) == 0) {
+
+ return EINVAL;
+ }
+
+ hfs_sync(hfsmp->hfs_mp, MNT_WAIT, context);
+
+ printf("hfs: Initializing the journal (joffset 0x%llx sz 0x%llx)...\n",
+ (off_t)name[2], (off_t)name[3]);
+
+ jvp = hfsmp->hfs_devvp;
+ jnl = journal_create(jvp,
+ (off_t)name[2] * (off_t)HFSTOVCB(hfsmp)->blockSize
+ + HFSTOVCB(hfsmp)->hfsPlusIOPosOffset,
+ (off_t)((unsigned)name[3]),
+ hfsmp->hfs_devvp,
+ hfsmp->hfs_phys_block_size,
+ 0,
+ 0,
+ hfs_sync_metadata, hfsmp->hfs_mp);
+
+ if (jnl == NULL) {
+ printf("hfs: FAILED to create the journal!\n");
+ if (jvp && jvp != hfsmp->hfs_devvp) {
+ VNOP_CLOSE(jvp, hfsmp->hfs_flags & HFS_READ_ONLY ? FREAD : FREAD|FWRITE, context);
+ }
+ jvp = NULL;
+
+ return EINVAL;
+ }
+
+ hfs_global_exclusive_lock_acquire(hfsmp);
+
+ HFSTOVCB(hfsmp)->vcbJinfoBlock = name[1];
+ HFSTOVCB(hfsmp)->vcbAtrb |= kHFSVolumeJournaledMask;
+ hfsmp->jvp = jvp;
+ hfsmp->jnl = jnl;
+
+ // save this off for the hack-y check in hfs_remove()
+ hfsmp->jnl_start = (u_int32_t)name[2];
+ hfsmp->jnl_size = (off_t)((unsigned)name[3]);
+ hfsmp->hfs_jnlinfoblkid = jinfo_attr.ca_fileid;
+ hfsmp->hfs_jnlfileid = jnl_attr.ca_fileid;
+
+ vfs_setflags(hfsmp->hfs_mp, (uint64_t)((unsigned int)MNT_JOURNALED));
+
+ hfs_global_exclusive_lock_release(hfsmp);
+ hfs_flushvolumeheader(hfsmp, MNT_WAIT, 1);
+
+ return 0;
+ } else if (name[0] == HFS_DISABLE_JOURNALING) {
+ // clear the journaling bit
+ struct vnode *vp = p->p_fd->fd_cdir;
+
+ /* Only root can disable journaling */
+ if (!is_suser()) {
+ return (EPERM);
+ }
+ if (vp == NULL)
+ return EINVAL;
+
+ hfsmp = VTOHFS(vp);
+
+ printf("hfs: disabling journaling for mount @ 0x%x\n", vnode_mount(vp));
- return (EOPNOTSUPP);
+ hfs_global_exclusive_lock_acquire(hfsmp);
+
+ // Lights out for you buddy!
+ journal_close(hfsmp->jnl);
+ hfsmp->jnl = NULL;
+
+ if (hfsmp->jvp && hfsmp->jvp != hfsmp->hfs_devvp) {
+ VNOP_CLOSE(hfsmp->jvp, hfsmp->hfs_flags & HFS_READ_ONLY ? FREAD : FREAD|FWRITE, context);
+ }
+ hfsmp->jvp = NULL;
+ vfs_clearflags(hfsmp->hfs_mp, (uint64_t)((unsigned int)MNT_JOURNALED));
+ hfsmp->jnl_start = 0;
+ hfsmp->hfs_jnlinfoblkid = 0;
+ hfsmp->hfs_jnlfileid = 0;
+
+ HFSTOVCB(hfsmp)->vcbAtrb &= ~kHFSVolumeJournaledMask;
+
+ hfs_global_exclusive_lock_release(hfsmp);
+ hfs_flushvolumeheader(hfsmp, MNT_WAIT, 1);
+
+ return 0;
+ } else if (name[0] == HFS_GET_JOURNAL_INFO) {
+ struct vnode *vp = p->p_fd->fd_cdir;
+ off_t jnl_start, jnl_size;
+
+ if (vp == NULL)
+ return EINVAL;
+
+ hfsmp = VTOHFS(vp);
+ if (hfsmp->jnl == NULL) {
+ jnl_start = 0;
+ jnl_size = 0;
+ } else {
+ jnl_start = (off_t)(hfsmp->jnl_start * HFSTOVCB(hfsmp)->blockSize) + (off_t)HFSTOVCB(hfsmp)->hfsPlusIOPosOffset;
+ jnl_size = (off_t)hfsmp->jnl_size;
+ }
+
+ if ((error = copyout((caddr_t)&jnl_start, CAST_USER_ADDR_T(name[1]), sizeof(off_t))) != 0) {
+ return error;
+ }
+ if ((error = copyout((caddr_t)&jnl_size, CAST_USER_ADDR_T(name[2]), sizeof(off_t))) != 0) {
+ return error;
+ }
+
+ return 0;
+ } else if (name[0] == HFS_SET_PKG_EXTENSIONS) {
+
+ return set_package_extensions_table((void *)name[1], name[2], name[3]);
+
+ } else if (name[0] == VFS_CTL_QUERY) {
+ struct sysctl_req *req;
+ struct vfsidctl vc;
+ struct user_vfsidctl user_vc;
+ struct mount *mp;
+ struct vfsquery vq;
+ boolean_t is_64_bit;
+
+ is_64_bit = proc_is64bit(p);
+ req = CAST_DOWN(struct sysctl_req *, oldp); /* we're new style vfs sysctl. */
+
+ if (is_64_bit) {
+ error = SYSCTL_IN(req, &user_vc, sizeof(user_vc));
+ if (error) return (error);
+
+ mp = vfs_getvfs(&user_vc.vc_fsid);
+ }
+ else {
+ error = SYSCTL_IN(req, &vc, sizeof(vc));
+ if (error) return (error);
+
+ mp = vfs_getvfs(&vc.vc_fsid);
+ }
+ if (mp == NULL) return (ENOENT);
+
+ hfsmp = VFSTOHFS(mp);
+ bzero(&vq, sizeof(vq));
+ vq.vq_flags = hfsmp->hfs_notification_conditions;
+ return SYSCTL_OUT(req, &vq, sizeof(vq));;
+ };
+
+ return (ENOTSUP);
}
-/* This will return a vnode of either a directory or a data vnode based on an object id. If
- * it is a file id, its data fork will be returned.
- */
static int
-hfs_vget(mp, ino, vpp)
- struct mount *mp;
- void *ino;
- struct vnode **vpp;
+hfs_vfs_vget(struct mount *mp, ino64_t ino, struct vnode **vpp, __unused vfs_context_t context)
+{
+ return hfs_vget(VFSTOHFS(mp), (cnid_t)ino, vpp, 1);
+}
+
+
+/*
+ * Look up an HFS object by ID.
+ *
+ * The object is returned with an iocount reference and the cnode locked.
+ *
+ * If the object is a file then it will represent the data fork.
+ */
+__private_extern__
+int
+hfs_vget(struct hfsmount *hfsmp, cnid_t cnid, struct vnode **vpp, int skiplock)
{
- cnid_t cnid = *(cnid_t *)ino;
+ struct vnode *vp = NULL;
+ struct cat_desc cndesc;
+ struct cat_attr cnattr;
+ struct cat_fork cnfork;
+ struct componentname cn;
+ int error;
/* Check for cnids that should't be exported. */
if ((cnid < kHFSFirstUserCatalogNodeID)
&& (cnid != kHFSRootFolderID && cnid != kHFSRootParentID))
return (ENOENT);
+
/* Don't export HFS Private Data dir. */
- if (cnid == VFSTOHFS(mp)->hfs_privdir_desc.cd_cnid)
+ if (cnid == hfsmp->hfs_privdir_desc.cd_cnid)
return (ENOENT);
- return (hfs_getcnode(VFSTOHFS(mp), cnid, NULL, 0, NULL, NULL, vpp));
+ /*
+ * Check the hash first
+ */
+ vp = hfs_chash_getvnode(hfsmp->hfs_raw_dev, cnid, 0, skiplock);
+ if (vp) {
+ *vpp = vp;
+ return(0);
+ }
+
+ bzero(&cndesc, sizeof(cndesc));
+ bzero(&cnattr, sizeof(cnattr));
+ bzero(&cnfork, sizeof(cnfork));
+
+ /*
+ * Not in hash, lookup in catalog
+ */
+ if (cnid == kHFSRootParentID) {
+ static char hfs_rootname[] = "/";
+
+ cndesc.cd_nameptr = &hfs_rootname[0];
+ cndesc.cd_namelen = 1;
+ cndesc.cd_parentcnid = kHFSRootParentID;
+ cndesc.cd_cnid = kHFSRootFolderID;
+ cndesc.cd_flags = CD_ISDIR;
+
+ cnattr.ca_fileid = kHFSRootFolderID;
+ cnattr.ca_nlink = 2;
+ cnattr.ca_entries = 1;
+ cnattr.ca_mode = (S_IFDIR | S_IRWXU | S_IRWXG | S_IRWXO);
+ } else {
+ int lockflags;
+
+ lockflags = hfs_systemfile_lock(hfsmp, SFL_CATALOG, HFS_SHARED_LOCK);
+ error = cat_idlookup(hfsmp, cnid, &cndesc, &cnattr, &cnfork);
+ hfs_systemfile_unlock(hfsmp, lockflags);
+
+ if (error) {
+ *vpp = NULL;
+ return (error);
+ }
+
+ /* Hide open files that have been deleted */
+ if ((hfsmp->hfs_privdir_desc.cd_cnid != 0) &&
+ (cndesc.cd_parentcnid == hfsmp->hfs_privdir_desc.cd_cnid)) {
+ // XXXdbg - if this is a hardlink, we could call
+ // hfs_chash_snoop() to see if there is
+ // already a cnode and vnode present for
+ // this fileid. however I'd rather not
+ // risk it at this point in Tiger.
+ cat_releasedesc(&cndesc);
+ error = ENOENT;
+ *vpp = NULL;
+ return (error);
+ }
+ }
+
+ /*
+ * Supply hfs_getnewvnode with a component name.
+ */
+ MALLOC_ZONE(cn.cn_pnbuf, caddr_t, MAXPATHLEN, M_NAMEI, M_WAITOK);
+ cn.cn_nameiop = LOOKUP;
+ cn.cn_flags = ISLASTCN | HASBUF;
+ cn.cn_context = NULL;
+ cn.cn_pnlen = MAXPATHLEN;
+ cn.cn_nameptr = cn.cn_pnbuf;
+ cn.cn_namelen = cndesc.cd_namelen;
+ cn.cn_hash = 0;
+ cn.cn_consume = 0;
+ bcopy(cndesc.cd_nameptr, cn.cn_nameptr, cndesc.cd_namelen + 1);
+
+ /* XXX should we supply the parent as well... ? */
+ error = hfs_getnewvnode(hfsmp, NULLVP, &cn, &cndesc, 0, &cnattr, &cnfork, &vp);
+ FREE_ZONE(cn.cn_pnbuf, cn.cn_pnlen, M_NAMEI);
+
+ cat_releasedesc(&cndesc);
+ *vpp = vp;
+ if (vp && skiplock)
+ hfs_unlock(VTOC(vp));
+ return (error);
}
+
/*
* Flush out all the files in a filesystem.
*/
-int
+static int
hfs_flushfiles(struct mount *mp, int flags, struct proc *p)
{
- register struct hfsmount *hfsmp;
+ struct hfsmount *hfsmp;
+ struct vnode *skipvp = NULLVP;
+ int quotafilecnt;
int i;
int error;
-#if QUOTA
hfsmp = VFSTOHFS(mp);
- if (mp->mnt_flag & MNT_QUOTA) {
- if (error = vflush(mp, NULLVP, SKIPSYSTEM|flags))
+#if QUOTA
+ /*
+ * The open quota files have an indirect reference on
+ * the root directory vnode. We must account for this
+ * extra reference when doing the intial vflush.
+ */
+ quotafilecnt = 0;
+ if (((unsigned int)vfs_flags(mp)) & MNT_QUOTA) {
+
+ /* Find out how many quota files we have open. */
+ for (i = 0; i < MAXQUOTAS; i++) {
+ if (hfsmp->hfs_qfiles[i].qf_vp != NULLVP)
+ ++quotafilecnt;
+ }
+
+ /* Obtain the root vnode so we can skip over it. */
+ skipvp = hfs_chash_getvnode(hfsmp->hfs_raw_dev, kHFSRootFolderID, 0, 0);
+ }
+#endif /* QUOTA */
+
+ error = vflush(mp, skipvp, SKIPSYSTEM | SKIPSWAP | flags);
+ if (error != 0)
+ return(error);
+
+ error = vflush(mp, skipvp, SKIPSYSTEM | flags);
+
+#if QUOTA
+ if (((unsigned int)vfs_flags(mp)) & MNT_QUOTA) {
+ if (skipvp) {
+ /*
+ * See if there are additional references on the
+ * root vp besides the ones obtained from the open
+ * quota files and the hfs_chash_getvnode call above.
+ */
+ if ((error == 0) &&
+ (vnode_isinuse(skipvp, quotafilecnt))) {
+ error = EBUSY; /* root directory is still open */
+ }
+ hfs_unlock(VTOC(skipvp));
+ vnode_put(skipvp);
+ }
+ if (error && (flags & FORCECLOSE) == 0)
return (error);
+
for (i = 0; i < MAXQUOTAS; i++) {
if (hfsmp->hfs_qfiles[i].qf_vp == NULLVP)
continue;
hfs_quotaoff(p, mp, i);
}
- /*
- * Here we fall through to vflush again to ensure
- * that we have gotten rid of all the system vnodes.
- */
+ error = vflush(mp, NULLVP, SKIPSYSTEM | flags);
}
#endif /* QUOTA */
- error = vflush(mp, NULLVP, (SKIPSYSTEM | SKIPSWAP | flags));
- error = vflush(mp, NULLVP, (SKIPSYSTEM | flags));
-
return (error);
}
break;
}
- if (index < 128) {
- HFSTOVCB(hfsmp)->encodingsBitmap |= (1 << index);
- HFSTOVCB(hfsmp)->vcbFlags |= 0xFF00;
+ if (index < 64) {
+ HFS_MOUNT_LOCK(hfsmp, TRUE)
+ hfsmp->encodingsBitmap |= (u_int64_t)(1ULL << index);
+ hfsmp->vcbFlags |= 0xFF00;
+ HFS_MOUNT_UNLOCK(hfsmp, TRUE);
}
}
/*
* Update volume stats
+ *
+ * On journal volumes this will cause a volume header flush
*/
__private_extern__
int
hfs_volupdate(struct hfsmount *hfsmp, enum volop op, int inroot)
{
- ExtendedVCB *vcb;
+ struct timeval tv;
- vcb = HFSTOVCB(hfsmp);
- vcb->vcbFlags |= 0xFF00;
- vcb->vcbLsMod = time.tv_sec;
+ microtime(&tv);
+
+ lck_mtx_lock(&hfsmp->hfs_mutex);
+
+ hfsmp->vcbFlags |= 0xFF00;
+ hfsmp->hfs_mtime = tv.tv_sec;
switch (op) {
case VOL_UPDATE:
break;
case VOL_MKDIR:
- if (vcb->vcbDirCnt != 0xFFFFFFFF)
- ++vcb->vcbDirCnt;
- if (inroot && vcb->vcbNmRtDirs != 0xFFFF)
- ++vcb->vcbNmRtDirs;
+ if (hfsmp->hfs_dircount != 0xFFFFFFFF)
+ ++hfsmp->hfs_dircount;
+ if (inroot && hfsmp->vcbNmRtDirs != 0xFFFF)
+ ++hfsmp->vcbNmRtDirs;
break;
case VOL_RMDIR:
- if (vcb->vcbDirCnt != 0)
- --vcb->vcbDirCnt;
- if (inroot && vcb->vcbNmRtDirs != 0xFFFF)
- --vcb->vcbNmRtDirs;
+ if (hfsmp->hfs_dircount != 0)
+ --hfsmp->hfs_dircount;
+ if (inroot && hfsmp->vcbNmRtDirs != 0xFFFF)
+ --hfsmp->vcbNmRtDirs;
break;
case VOL_MKFILE:
- if (vcb->vcbFilCnt != 0xFFFFFFFF)
- ++vcb->vcbFilCnt;
- if (inroot && vcb->vcbNmFls != 0xFFFF)
- ++vcb->vcbNmFls;
+ if (hfsmp->hfs_filecount != 0xFFFFFFFF)
+ ++hfsmp->hfs_filecount;
+ if (inroot && hfsmp->vcbNmFls != 0xFFFF)
+ ++hfsmp->vcbNmFls;
break;
case VOL_RMFILE:
- if (vcb->vcbFilCnt != 0)
- --vcb->vcbFilCnt;
- if (inroot && vcb->vcbNmFls != 0xFFFF)
- --vcb->vcbNmFls;
+ if (hfsmp->hfs_filecount != 0)
+ --hfsmp->hfs_filecount;
+ if (inroot && hfsmp->vcbNmFls != 0xFFFF)
+ --hfsmp->vcbNmFls;
break;
}
+
+ lck_mtx_unlock(&hfsmp->hfs_mutex);
+
+ if (hfsmp->jnl) {
+ hfs_flushvolumeheader(hfsmp, 0, 0);
+ }
+
return (0);
}
ByteCount namelen;
sectorsize = hfsmp->hfs_phys_block_size;
-
- retval = bread(hfsmp->hfs_devvp, HFS_PRI_SECTOR(sectorsize), sectorsize, NOCRED, &bp);
+ retval = (int)buf_bread(hfsmp->hfs_devvp, (daddr64_t)HFS_PRI_SECTOR(sectorsize), sectorsize, NOCRED, &bp);
if (retval) {
if (bp)
- brelse(bp);
+ buf_brelse(bp);
return retval;
}
- DBG_ASSERT(bp != NULL);
- DBG_ASSERT(bp->b_data != NULL);
- DBG_ASSERT(bp->b_bcount == size);
+ lck_mtx_lock(&hfsmp->hfs_mutex);
- mdb = (HFSMasterDirectoryBlock *)(bp->b_data + HFS_PRI_OFFSET(sectorsize));
+ mdb = (HFSMasterDirectoryBlock *)(buf_dataptr(bp) + HFS_PRI_OFFSET(sectorsize));
mdb->drCrDate = SWAP_BE32 (UTCToLocal(to_hfs_time(vcb->vcbCrDate)));
mdb->drLsMod = SWAP_BE32 (UTCToLocal(to_hfs_time(vcb->vcbLsMod)));
mdb->drXTExtRec[2].blockCount = SWAP_BE16 (fp->ff_extents[2].blockCount);
mdb->drXTFlSize = SWAP_BE32 (fp->ff_blocks * vcb->blockSize);
mdb->drXTClpSiz = SWAP_BE32 (fp->ff_clumpsize);
+ FTOC(fp)->c_flag &= ~C_MODIFIED;
fp = VTOF(vcb->catalogRefNum);
mdb->drCTExtRec[0].startBlock = SWAP_BE16 (fp->ff_extents[0].startBlock);
mdb->drCTExtRec[2].blockCount = SWAP_BE16 (fp->ff_extents[2].blockCount);
mdb->drCTFlSize = SWAP_BE32 (fp->ff_blocks * vcb->blockSize);
mdb->drCTClpSiz = SWAP_BE32 (fp->ff_clumpsize);
+ FTOC(fp)->c_flag &= ~C_MODIFIED;
+
+ MarkVCBClean( vcb );
+
+ lck_mtx_unlock(&hfsmp->hfs_mutex);
/* If requested, flush out the alternate MDB */
if (altflush) {
struct buf *alt_bp = NULL;
- u_long altIDSector;
- altIDSector = HFS_ALT_SECTOR(sectorsize, hfsmp->hfs_phys_block_count);
+ if (buf_meta_bread(hfsmp->hfs_devvp, hfsmp->hfs_alt_id_sector, sectorsize, NOCRED, &alt_bp) == 0) {
+ bcopy(mdb, (char *)buf_dataptr(alt_bp) + HFS_ALT_OFFSET(sectorsize), kMDBSize);
- if (meta_bread(hfsmp->hfs_devvp, altIDSector, sectorsize, NOCRED, &alt_bp) == 0) {
- bcopy(mdb, alt_bp->b_data + HFS_ALT_OFFSET(sectorsize), kMDBSize);
- (void) VOP_BWRITE(alt_bp);
+ (void) VNOP_BWRITE(alt_bp);
} else if (alt_bp)
- brelse(alt_bp);
+ buf_brelse(alt_bp);
}
if (waitfor != MNT_WAIT)
- bawrite(bp);
- else
- retval = VOP_BWRITE(bp);
-
- MarkVCBClean( vcb );
+ buf_bawrite(bp);
+ else
+ retval = VNOP_BWRITE(bp);
return (retval);
}
-
+/*
+ * Flush any dirty in-memory mount data to the on-disk
+ * volume header.
+ *
+ * Note: the on-disk volume signature is intentionally
+ * not flushed since the on-disk "H+" and "HX" signatures
+ * are always stored in-memory as "H+".
+ */
__private_extern__
int
hfs_flushvolumeheader(struct hfsmount *hfsmp, int waitfor, int altflush)
struct buf *bp;
int i;
int sectorsize;
- int priIDSector;
+ daddr64_t priIDSector;
int critical = 0;
+ u_int16_t signature;
+ u_int16_t hfsversion;
+ if (hfsmp->hfs_flags & HFS_READ_ONLY) {
+ return(0);
+ }
if (vcb->vcbSigWord == kHFSSigWord)
return hfs_flushMDB(hfsmp, waitfor, altflush);
if (altflush)
critical = 1;
sectorsize = hfsmp->hfs_phys_block_size;
- priIDSector = (vcb->hfsPlusIOPosOffset / sectorsize) +
- HFS_PRI_SECTOR(sectorsize);
+ priIDSector = (daddr64_t)((vcb->hfsPlusIOPosOffset / sectorsize) +
+ HFS_PRI_SECTOR(sectorsize));
- retval = meta_bread(hfsmp->hfs_devvp, priIDSector, sectorsize, NOCRED, &bp);
+ if (hfs_start_transaction(hfsmp) != 0) {
+ return EINVAL;
+ }
+
+ retval = (int)buf_meta_bread(hfsmp->hfs_devvp, priIDSector, sectorsize, NOCRED, &bp);
if (retval) {
if (bp)
- brelse(bp);
+ buf_brelse(bp);
+
+ hfs_end_transaction(hfsmp);
+
+ printf("HFS: err %d reading VH blk (%s)\n", retval, vcb->vcbVN);
return (retval);
}
- volumeHeader = (HFSPlusVolumeHeader *)((char *)bp->b_data + HFS_PRI_OFFSET(sectorsize));
+ if (hfsmp->jnl) {
+ journal_modify_block_start(hfsmp->jnl, bp);
+ }
+
+ volumeHeader = (HFSPlusVolumeHeader *)((char *)buf_dataptr(bp) + HFS_PRI_OFFSET(sectorsize));
+
+ /*
+ * Sanity check what we just read.
+ */
+ signature = SWAP_BE16 (volumeHeader->signature);
+ hfsversion = SWAP_BE16 (volumeHeader->version);
+ if ((signature != kHFSPlusSigWord && signature != kHFSXSigWord) ||
+ (hfsversion < kHFSPlusVersion) || (hfsversion > 100) ||
+ (SWAP_BE32 (volumeHeader->blockSize) != vcb->blockSize)) {
+#if 1
+ panic("HFS: corrupt VH on %s, sig 0x%04x, ver %d, blksize %d",
+ vcb->vcbVN, signature, hfsversion,
+ SWAP_BE32 (volumeHeader->blockSize));
+#endif
+ printf("HFS: corrupt VH blk (%s)\n", vcb->vcbVN);
+ buf_brelse(bp);
+ return (EIO);
+ }
/*
* For embedded HFS+ volumes, update create date if it changed
struct buf *bp2;
HFSMasterDirectoryBlock *mdb;
- retval = meta_bread(hfsmp->hfs_devvp, HFS_PRI_SECTOR(sectorsize),
+ retval = (int)buf_meta_bread(hfsmp->hfs_devvp, (daddr64_t)HFS_PRI_SECTOR(sectorsize),
sectorsize, NOCRED, &bp2);
if (retval) {
if (bp2)
- brelse(bp2);
+ buf_brelse(bp2);
retval = 0;
} else {
- mdb = (HFSMasterDirectoryBlock *)(bp2->b_data +
+ mdb = (HFSMasterDirectoryBlock *)(buf_dataptr(bp2) +
HFS_PRI_OFFSET(sectorsize));
if ( SWAP_BE32 (mdb->drCrDate) != vcb->localCreateDate )
{
+ if (hfsmp->jnl) {
+ journal_modify_block_start(hfsmp->jnl, bp2);
+ }
+
mdb->drCrDate = SWAP_BE32 (vcb->localCreateDate); /* pick up the new create date */
- (void) VOP_BWRITE(bp2); /* write out the changes */
+ if (hfsmp->jnl) {
+ journal_modify_block_end(hfsmp->jnl, bp2);
+ } else {
+ (void) VNOP_BWRITE(bp2); /* write out the changes */
+ }
}
else
{
- brelse(bp2); /* just release it */
+ buf_brelse(bp2); /* just release it */
}
}
}
+ if (1 /* hfsmp->jnl == 0 */) {
+ lck_mtx_lock(&hfsmp->hfs_mutex);
+ }
+
/* Note: only update the lower 16 bits worth of attributes */
- volumeHeader->attributes = SWAP_BE32 ((SWAP_BE32 (volumeHeader->attributes) & 0xFFFF0000) + (UInt16) vcb->vcbAtrb);
- volumeHeader->lastMountedVersion = SWAP_BE32 (kHFSPlusMountVersion);
+ volumeHeader->attributes = SWAP_BE32 (vcb->vcbAtrb);
+ volumeHeader->journalInfoBlock = SWAP_BE32 (vcb->vcbJinfoBlock);
+ if (hfsmp->jnl) {
+ volumeHeader->lastMountedVersion = SWAP_BE32 (kHFSJMountVersion);
+ } else {
+ volumeHeader->lastMountedVersion = SWAP_BE32 (kHFSPlusMountVersion);
+ }
volumeHeader->createDate = SWAP_BE32 (vcb->localCreateDate); /* volume create date is in local time */
volumeHeader->modifyDate = SWAP_BE32 (to_hfs_time(vcb->vcbLsMod));
volumeHeader->backupDate = SWAP_BE32 (to_hfs_time(vcb->vcbVolBkUp));
volumeHeader->fileCount = SWAP_BE32 (vcb->vcbFilCnt);
volumeHeader->folderCount = SWAP_BE32 (vcb->vcbDirCnt);
+ volumeHeader->totalBlocks = SWAP_BE32 (vcb->totalBlocks);
volumeHeader->freeBlocks = SWAP_BE32 (vcb->freeBlocks);
volumeHeader->nextAllocation = SWAP_BE32 (vcb->nextAllocation);
volumeHeader->rsrcClumpSize = SWAP_BE32 (vcb->vcbClpSiz);
volumeHeader->writeCount = SWAP_BE32 (vcb->vcbWrCnt);
volumeHeader->encodingsBitmap = SWAP_BE64 (vcb->encodingsBitmap);
- if (bcmp(vcb->vcbFndrInfo, volumeHeader->finderInfo, sizeof(volumeHeader->finderInfo)) != 0)
+ if (bcmp(vcb->vcbFndrInfo, volumeHeader->finderInfo, sizeof(volumeHeader->finderInfo)) != 0) {
+ bcopy(vcb->vcbFndrInfo, volumeHeader->finderInfo, sizeof(volumeHeader->finderInfo));
critical = 1;
- bcopy(vcb->vcbFndrInfo, volumeHeader->finderInfo, sizeof(volumeHeader->finderInfo));
+ }
/* Sync Extents over-flow file meta data */
fp = VTOF(vcb->extentsRefNum);
- for (i = 0; i < kHFSPlusExtentDensity; i++) {
- volumeHeader->extentsFile.extents[i].startBlock =
- SWAP_BE32 (fp->ff_extents[i].startBlock);
- volumeHeader->extentsFile.extents[i].blockCount =
- SWAP_BE32 (fp->ff_extents[i].blockCount);
+ if (FTOC(fp)->c_flag & C_MODIFIED) {
+ for (i = 0; i < kHFSPlusExtentDensity; i++) {
+ volumeHeader->extentsFile.extents[i].startBlock =
+ SWAP_BE32 (fp->ff_extents[i].startBlock);
+ volumeHeader->extentsFile.extents[i].blockCount =
+ SWAP_BE32 (fp->ff_extents[i].blockCount);
+ }
+ volumeHeader->extentsFile.logicalSize = SWAP_BE64 (fp->ff_size);
+ volumeHeader->extentsFile.totalBlocks = SWAP_BE32 (fp->ff_blocks);
+ volumeHeader->extentsFile.clumpSize = SWAP_BE32 (fp->ff_clumpsize);
+ FTOC(fp)->c_flag &= ~C_MODIFIED;
}
- FTOC(fp)->c_flag &= ~C_MODIFIED;
- volumeHeader->extentsFile.logicalSize = SWAP_BE64 (fp->ff_size);
- volumeHeader->extentsFile.totalBlocks = SWAP_BE32 (fp->ff_blocks);
- volumeHeader->extentsFile.clumpSize = SWAP_BE32 (fp->ff_clumpsize);
/* Sync Catalog file meta data */
fp = VTOF(vcb->catalogRefNum);
- for (i = 0; i < kHFSPlusExtentDensity; i++) {
- volumeHeader->catalogFile.extents[i].startBlock =
- SWAP_BE32 (fp->ff_extents[i].startBlock);
- volumeHeader->catalogFile.extents[i].blockCount =
- SWAP_BE32 (fp->ff_extents[i].blockCount);
+ if (FTOC(fp)->c_flag & C_MODIFIED) {
+ for (i = 0; i < kHFSPlusExtentDensity; i++) {
+ volumeHeader->catalogFile.extents[i].startBlock =
+ SWAP_BE32 (fp->ff_extents[i].startBlock);
+ volumeHeader->catalogFile.extents[i].blockCount =
+ SWAP_BE32 (fp->ff_extents[i].blockCount);
+ }
+ volumeHeader->catalogFile.logicalSize = SWAP_BE64 (fp->ff_size);
+ volumeHeader->catalogFile.totalBlocks = SWAP_BE32 (fp->ff_blocks);
+ volumeHeader->catalogFile.clumpSize = SWAP_BE32 (fp->ff_clumpsize);
+ FTOC(fp)->c_flag &= ~C_MODIFIED;
}
- FTOC(fp)->c_flag &= ~C_MODIFIED;
- volumeHeader->catalogFile.logicalSize = SWAP_BE64 (fp->ff_size);
- volumeHeader->catalogFile.totalBlocks = SWAP_BE32 (fp->ff_blocks);
- volumeHeader->catalogFile.clumpSize = SWAP_BE32 (fp->ff_clumpsize);
/* Sync Allocation file meta data */
fp = VTOF(vcb->allocationsRefNum);
- for (i = 0; i < kHFSPlusExtentDensity; i++) {
- volumeHeader->allocationFile.extents[i].startBlock =
- SWAP_BE32 (fp->ff_extents[i].startBlock);
- volumeHeader->allocationFile.extents[i].blockCount =
- SWAP_BE32 (fp->ff_extents[i].blockCount);
+ if (FTOC(fp)->c_flag & C_MODIFIED) {
+ for (i = 0; i < kHFSPlusExtentDensity; i++) {
+ volumeHeader->allocationFile.extents[i].startBlock =
+ SWAP_BE32 (fp->ff_extents[i].startBlock);
+ volumeHeader->allocationFile.extents[i].blockCount =
+ SWAP_BE32 (fp->ff_extents[i].blockCount);
+ }
+ volumeHeader->allocationFile.logicalSize = SWAP_BE64 (fp->ff_size);
+ volumeHeader->allocationFile.totalBlocks = SWAP_BE32 (fp->ff_blocks);
+ volumeHeader->allocationFile.clumpSize = SWAP_BE32 (fp->ff_clumpsize);
+ FTOC(fp)->c_flag &= ~C_MODIFIED;
+ }
+
+ /* Sync Attribute file meta data */
+ if (hfsmp->hfs_attribute_vp) {
+ fp = VTOF(hfsmp->hfs_attribute_vp);
+ for (i = 0; i < kHFSPlusExtentDensity; i++) {
+ volumeHeader->attributesFile.extents[i].startBlock =
+ SWAP_BE32 (fp->ff_extents[i].startBlock);
+ volumeHeader->attributesFile.extents[i].blockCount =
+ SWAP_BE32 (fp->ff_extents[i].blockCount);
+ }
+ FTOC(fp)->c_flag &= ~C_MODIFIED;
+ volumeHeader->attributesFile.logicalSize = SWAP_BE64 (fp->ff_size);
+ volumeHeader->attributesFile.totalBlocks = SWAP_BE32 (fp->ff_blocks);
+ volumeHeader->attributesFile.clumpSize = SWAP_BE32 (fp->ff_clumpsize);
+ }
+
+ vcb->vcbFlags &= 0x00FF;
+
+ if (1 /* hfsmp->jnl == 0 */) {
+ lck_mtx_unlock(&hfsmp->hfs_mutex);
}
- FTOC(fp)->c_flag &= ~C_MODIFIED;
- volumeHeader->allocationFile.logicalSize = SWAP_BE64 (fp->ff_size);
- volumeHeader->allocationFile.totalBlocks = SWAP_BE32 (fp->ff_blocks);
- volumeHeader->allocationFile.clumpSize = SWAP_BE32 (fp->ff_clumpsize);
/* If requested, flush out the alternate volume header */
- if (altflush) {
+ if (altflush && hfsmp->hfs_alt_id_sector) {
struct buf *alt_bp = NULL;
- u_long altIDSector;
- altIDSector = (vcb->hfsPlusIOPosOffset / sectorsize) +
- HFS_ALT_SECTOR(sectorsize, hfsmp->hfs_phys_block_count);
+ if (buf_meta_bread(hfsmp->hfs_devvp, hfsmp->hfs_alt_id_sector, sectorsize, NOCRED, &alt_bp) == 0) {
+ if (hfsmp->jnl) {
+ journal_modify_block_start(hfsmp->jnl, alt_bp);
+ }
+
+ bcopy(volumeHeader, (char *)buf_dataptr(alt_bp) + HFS_ALT_OFFSET(sectorsize), kMDBSize);
- if (meta_bread(hfsmp->hfs_devvp, altIDSector, sectorsize, NOCRED, &alt_bp) == 0) {
- bcopy(volumeHeader, alt_bp->b_data + HFS_ALT_OFFSET(sectorsize), kMDBSize);
- (void) VOP_BWRITE(alt_bp);
+ if (hfsmp->jnl) {
+ journal_modify_block_end(hfsmp->jnl, alt_bp);
+ } else {
+ (void) VNOP_BWRITE(alt_bp);
+ }
} else if (alt_bp)
- brelse(alt_bp);
+ buf_brelse(alt_bp);
}
- if (waitfor != MNT_WAIT)
- bawrite(bp);
- else {
- retval = VOP_BWRITE(bp);
- /* When critical data changes, flush the device cache */
- if (critical && (retval == 0)) {
- (void) VOP_IOCTL(hfsmp->hfs_devvp, DKIOCSYNCHRONIZECACHE,
- NULL, FWRITE, NOCRED, current_proc());
+ if (hfsmp->jnl) {
+ journal_modify_block_end(hfsmp->jnl, bp);
+ } else {
+ if (waitfor != MNT_WAIT)
+ buf_bawrite(bp);
+ else {
+ retval = VNOP_BWRITE(bp);
+ /* When critical data changes, flush the device cache */
+ if (critical && (retval == 0)) {
+ (void) VNOP_IOCTL(hfsmp->hfs_devvp, DKIOCSYNCHRONIZECACHE,
+ NULL, FWRITE, NULL);
+ }
}
}
+ hfs_end_transaction(hfsmp);
- vcb->vcbFlags &= 0x00FF;
return (retval);
}
+/*
+ * Extend a file system.
+ */
+__private_extern__
+int
+hfs_extendfs(struct hfsmount *hfsmp, u_int64_t newsize, vfs_context_t context)
+{
+ struct proc *p = vfs_context_proc(context);
+ kauth_cred_t cred = vfs_context_ucred(context);
+ struct vnode *vp;
+ struct vnode *devvp;
+ struct buf *bp;
+ struct filefork *fp = NULL;
+ ExtendedVCB *vcb;
+ struct cat_fork forkdata;
+ u_int64_t oldsize;
+ u_int64_t newblkcnt;
+ u_int64_t prev_phys_block_count;
+ u_int32_t addblks;
+ u_int64_t sectorcnt;
+ u_int32_t sectorsize;
+ daddr64_t prev_alt_sector;
+ daddr_t bitmapblks;
+ int lockflags;
+ int error;
+
+ devvp = hfsmp->hfs_devvp;
+ vcb = HFSTOVCB(hfsmp);
+
+ /*
+ * - HFS Plus file systems only.
+ * - Journaling must be enabled.
+ * - No embedded volumes.
+ */
+ if ((vcb->vcbSigWord == kHFSSigWord) ||
+ (hfsmp->jnl == NULL) ||
+ (vcb->hfsPlusIOPosOffset != 0)) {
+ return (EPERM);
+ }
+ /*
+ * If extending file system by non-root, then verify
+ * ownership and check permissions.
+ */
+ if (suser(cred, NULL)) {
+ error = hfs_vget(hfsmp, kHFSRootFolderID, &vp, 0);
+
+ if (error)
+ return (error);
+ error = hfs_owner_rights(hfsmp, VTOC(vp)->c_uid, cred, p, 0);
+ if (error == 0) {
+ error = hfs_write_access(vp, cred, p, false);
+ }
+ hfs_unlock(VTOC(vp));
+ vnode_put(vp);
+ if (error)
+ return (error);
+
+ error = vnode_authorize(devvp, NULL, KAUTH_VNODE_READ_DATA | KAUTH_VNODE_WRITE_DATA, context);
+ if (error)
+ return (error);
+ }
+ if (VNOP_IOCTL(devvp, DKIOCGETBLOCKSIZE, (caddr_t)§orsize, 0, context)) {
+ return (ENXIO);
+ }
+ if (sectorsize != hfsmp->hfs_phys_block_size) {
+ return (ENXIO);
+ }
+ if (VNOP_IOCTL(devvp, DKIOCGETBLOCKCOUNT, (caddr_t)§orcnt, 0, context)) {
+ return (ENXIO);
+ }
+ if ((sectorsize * sectorcnt) < newsize) {
+ printf("hfs_extendfs: not enough space on device\n");
+ return (ENOSPC);
+ }
+ oldsize = (u_int64_t)hfsmp->totalBlocks * (u_int64_t)hfsmp->blockSize;
+
+ /*
+ * Validate new size.
+ */
+ if ((newsize <= oldsize) || (newsize % sectorsize)) {
+ printf("hfs_extendfs: invalid size\n");
+ return (EINVAL);
+ }
+ newblkcnt = newsize / vcb->blockSize;
+ if (newblkcnt > (u_int64_t)0xFFFFFFFF)
+ return (EOVERFLOW);
+
+ addblks = newblkcnt - vcb->totalBlocks;
+
+ printf("hfs_extendfs: growing %s by %d blocks\n", vcb->vcbVN, addblks);
+ /*
+ * Enclose changes inside a transaction.
+ */
+ if (hfs_start_transaction(hfsmp) != 0) {
+ return (EINVAL);
+ }
+
+ lockflags = hfs_systemfile_lock(hfsmp, SFL_EXTENTS | SFL_BITMAP, HFS_EXCLUSIVE_LOCK);
+ vp = vcb->allocationsRefNum;
+ fp = VTOF(vp);
+ bcopy(&fp->ff_data, &forkdata, sizeof(forkdata));
+
+ /*
+ * Calculate additional space required (if any) by allocation bitmap.
+ */
+ bitmapblks = roundup(newblkcnt / 8, vcb->vcbVBMIOSize) / vcb->blockSize;
+ if (bitmapblks > (daddr_t)fp->ff_blocks)
+ bitmapblks -= fp->ff_blocks;
+ else
+ bitmapblks = 0;
+
+ if (bitmapblks > 0) {
+ daddr64_t blkno;
+ daddr_t blkcnt;
+
+ /*
+ * Add a new extent to the allocation bitmap file.
+ */
+ error = AddFileExtent(vcb, fp, vcb->totalBlocks, bitmapblks);
+ if (error) {
+ printf("hfs_extendfs: error %d adding extents\n", error);
+ goto out;
+ }
+ blkcnt = bitmapblks;
+ blkno = (daddr64_t)fp->ff_blocks;
+ fp->ff_blocks += bitmapblks;
+ fp->ff_size += (u_int64_t)bitmapblks * (u_int64_t)vcb->blockSize;
+ VTOC(vp)->c_blocks = fp->ff_blocks;
+ /*
+ * Zero out the new bitmap blocks.
+ */
+ {
+
+ bp = NULL;
+ while (blkcnt > 0) {
+ error = (int)buf_meta_bread(vp, blkno, vcb->blockSize, NOCRED, &bp);
+ if (error) {
+ if (bp) {
+ buf_brelse(bp);
+ }
+ break;
+ }
+ bzero((char *)buf_dataptr(bp), vcb->blockSize);
+ buf_markaged(bp);
+ error = (int)buf_bwrite(bp);
+ if (error)
+ break;
+ --blkcnt;
+ ++blkno;
+ }
+ }
+ if (error) {
+ printf("hfs_extendfs: error %d clearing blocks\n", error);
+ goto out;
+ }
+ /*
+ * Mark the new bitmap space as allocated.
+ */
+ error = BlockMarkAllocated(vcb, vcb->totalBlocks, bitmapblks);
+ if (error) {
+ printf("hfs_extendfs: error %d setting bitmap\n", error);
+ goto out;
+ }
+ }
+ /*
+ * Mark the new alternate VH as allocated.
+ */
+ if (vcb->blockSize == 512)
+ error = BlockMarkAllocated(vcb, vcb->totalBlocks + addblks - 2, 2);
+ else
+ error = BlockMarkAllocated(vcb, vcb->totalBlocks + addblks - 1, 1);
+ if (error) {
+ printf("hfs_extendfs: error %d setting bitmap (VH)\n", error);
+ goto out;
+ }
+ /*
+ * Mark the old alternate VH as free.
+ */
+ if (vcb->blockSize == 512)
+ (void) BlockMarkFree(vcb, vcb->totalBlocks - 2, 2);
+ else
+ (void) BlockMarkFree(vcb, vcb->totalBlocks - 1, 1);
+ /*
+ * Adjust file system variables for new space.
+ */
+ prev_phys_block_count = hfsmp->hfs_phys_block_count;
+ prev_alt_sector = hfsmp->hfs_alt_id_sector;
+
+ vcb->totalBlocks += addblks;
+ vcb->freeBlocks += addblks - bitmapblks;
+ hfsmp->hfs_phys_block_count = newsize / sectorsize;
+ hfsmp->hfs_alt_id_sector = (hfsmp->hfsPlusIOPosOffset / sectorsize) +
+ HFS_ALT_SECTOR(sectorsize, hfsmp->hfs_phys_block_count);
+ MarkVCBDirty(vcb);
+ error = hfs_flushvolumeheader(hfsmp, MNT_WAIT, HFS_ALTFLUSH);
+ if (error) {
+ printf("hfs_extendfs: couldn't flush volume headers (%d)", error);
+ /*
+ * Restore to old state.
+ */
+ fp->ff_size -= (u_int64_t)bitmapblks * (u_int64_t)vcb->blockSize;
+ vcb->totalBlocks -= addblks;
+ vcb->freeBlocks -= addblks - bitmapblks;
+ hfsmp->hfs_phys_block_count = prev_phys_block_count;
+ hfsmp->hfs_alt_id_sector = prev_alt_sector;
+ MarkVCBDirty(vcb);
+ if (vcb->blockSize == 512)
+ (void) BlockMarkAllocated(vcb, vcb->totalBlocks - 2, 2);
+ else
+ (void) BlockMarkAllocated(vcb, vcb->totalBlocks - 1, 1);
+ goto out;
+ }
+ /*
+ * Invalidate the old alternate volume header.
+ */
+ bp = NULL;
+ if (prev_alt_sector) {
+ if (buf_meta_bread(hfsmp->hfs_devvp, prev_alt_sector, sectorsize,
+ NOCRED, &bp) == 0) {
+ journal_modify_block_start(hfsmp->jnl, bp);
+
+ bzero((char *)buf_dataptr(bp) + HFS_ALT_OFFSET(sectorsize), kMDBSize);
+
+ journal_modify_block_end(hfsmp->jnl, bp);
+ } else if (bp) {
+ buf_brelse(bp);
+ }
+ }
+out:
+ if (error && fp) {
+ /* Restore allocation fork. */
+ bcopy(&forkdata, &fp->ff_data, sizeof(forkdata));
+ VTOC(vp)->c_blocks = fp->ff_blocks;
+
+ }
+ hfs_systemfile_unlock(hfsmp, lockflags);
+ hfs_end_transaction(hfsmp);
+
+ return (error);
+}
+
+#define HFS_MIN_SIZE (32LL * 1024LL * 1024LL)
+
+/*
+ * Truncate a file system (while still mounted).
+ */
+__private_extern__
+int
+hfs_truncatefs(struct hfsmount *hfsmp, u_int64_t newsize, __unused vfs_context_t context)
+{
+ struct vnode* rvp = NULL;
+ struct buf *bp = NULL;
+ u_int64_t oldsize;
+ u_int32_t newblkcnt;
+ u_int32_t reclaimblks;
+ int lockflags = 0;
+ int transaction_begun = 0;
+ int error;
+
+ /*
+ * Grab the root vnode to serialize with another hfs_truncatefs call.
+ */
+ error = hfs_vget(hfsmp, kHFSRootFolderID, &rvp, 0);
+ if (error) {
+ return (error);
+ }
+ /*
+ * - HFS Plus file systems only.
+ * - Journaling must be enabled.
+ * - No embedded volumes.
+ */
+ if ((hfsmp->hfs_flags & HFS_STANDARD) ||
+ (hfsmp->jnl == NULL) ||
+ (hfsmp->hfsPlusIOPosOffset != 0)) {
+ error = EPERM;
+ goto out;
+ }
+ oldsize = (u_int64_t)hfsmp->totalBlocks * (u_int64_t)hfsmp->blockSize;
+ newblkcnt = newsize / hfsmp->blockSize;
+ reclaimblks = hfsmp->totalBlocks - newblkcnt;
+
+ /* Make sure new size is valid. */
+ if ((newsize < HFS_MIN_SIZE) ||
+ (newsize >= oldsize) ||
+ (newsize % hfsmp->hfs_phys_block_size)) {
+ error = EINVAL;
+ goto out;
+ }
+ /* Make sure there's enough space to work with. */
+ if (reclaimblks > (hfsmp->freeBlocks / 4)) {
+ error = ENOSPC;
+ goto out;
+ }
+
+ printf("hfs_truncatefs: shrinking %s by %d blocks out of %d\n",
+ hfsmp->vcbVN, reclaimblks, hfsmp->totalBlocks);
+
+ if (hfs_start_transaction(hfsmp) != 0) {
+ error = EINVAL;
+ goto out;
+ }
+ transaction_begun = 1;
+
+ /*
+ * Look for files that have blocks beyond newblkcnt.
+ */
+ if (hfs_isallocated(hfsmp, newblkcnt, reclaimblks - 1)) {
+ /*
+ * hfs_reclaimspace will use separate transactions when
+ * relocating files (so we don't overwhelm the journal).
+ */
+ hfs_end_transaction(hfsmp);
+ transaction_begun = 0;
+
+ /* Attempt to reclaim some space. */
+ if (hfs_reclaimspace(hfsmp, newblkcnt) != 0) {
+ printf("hfs_truncatefs: couldn't reclaim space on %s\n", hfsmp->vcbVN);
+ error = ENOSPC;
+ goto out;
+ }
+ if (hfs_start_transaction(hfsmp) != 0) {
+ error = EINVAL;
+ goto out;
+ }
+ transaction_begun = 1;
+
+ /* Check if we're clear now. */
+ if (hfs_isallocated(hfsmp, newblkcnt, reclaimblks - 1)) {
+ printf("hfs_truncatefs: didn't reclaim enough space on %s\n", hfsmp->vcbVN);
+ error = ENOSPC;
+ goto out;
+ }
+ }
+ lockflags = hfs_systemfile_lock(hfsmp, SFL_EXTENTS | SFL_BITMAP, HFS_EXCLUSIVE_LOCK);
+
+ /*
+ * Mark the old alternate volume header as free.
+ * We don't bother shrinking allocation bitmap file.
+ */
+ if (hfsmp->blockSize == 512)
+ (void) BlockMarkFree(hfsmp, hfsmp->totalBlocks - 2, 2);
+ else
+ (void) BlockMarkFree(hfsmp, hfsmp->totalBlocks - 1, 1);
+
+ /*
+ * Allocate last block for alternate volume header.
+ */
+ if (hfsmp->blockSize == 512)
+ error = BlockMarkAllocated(hfsmp, newblkcnt - 2, 2);
+ else
+ error = BlockMarkAllocated(hfsmp, newblkcnt - 1, 1);
+
+ if (error) {
+ goto out;
+ }
+
+ /*
+ * Invalidate the existing alternate volume header.
+ */
+ if (hfsmp->hfs_alt_id_sector) {
+ if (buf_meta_bread(hfsmp->hfs_devvp, hfsmp->hfs_alt_id_sector,
+ hfsmp->hfs_phys_block_size, NOCRED, &bp) == 0) {
+ journal_modify_block_start(hfsmp->jnl, bp);
+
+ bzero((void*)((char *)buf_dataptr(bp) + HFS_ALT_OFFSET(hfsmp->hfs_phys_block_size)), kMDBSize);
+
+ journal_modify_block_end(hfsmp->jnl, bp);
+ } else if (bp) {
+ buf_brelse(bp);
+ }
+ bp = NULL;
+ }
+
+ /*
+ * Adjust file system variables and flush them to disk.
+ */
+ hfsmp->freeBlocks -= hfsmp->totalBlocks - newblkcnt;
+ hfsmp->totalBlocks = newblkcnt;
+ hfsmp->hfs_phys_block_count = newsize / hfsmp->hfs_phys_block_size;
+ hfsmp->hfs_alt_id_sector = HFS_ALT_SECTOR(hfsmp->hfs_phys_block_size, hfsmp->hfs_phys_block_count);
+ MarkVCBDirty(hfsmp);
+ error = hfs_flushvolumeheader(hfsmp, MNT_WAIT, HFS_ALTFLUSH);
+ if (error)
+ panic("hfs_truncatefs: unexpected error flushing volume header (%d)\n", error);
+out:
+ if (lockflags) {
+ hfs_systemfile_unlock(hfsmp, lockflags);
+ }
+ if (transaction_begun) {
+ hfs_end_transaction(hfsmp);
+ }
+ if (rvp) {
+ hfs_unlock(VTOC(rvp));
+ vnode_put(rvp);
+ }
+ return (error);
+}
+
+/*
+ * Reclaim space at the end of a file system.
+ */
+static int
+hfs_reclaimspace(struct hfsmount *hfsmp, u_long startblk)
+{
+ struct vnode *vp = NULL;
+ FCB *fcb;
+ struct BTreeIterator * iterator = NULL;
+ struct FSBufferDescriptor btdata;
+ struct HFSPlusCatalogFile filerec;
+ u_int32_t saved_next_allocation;
+ cnid_t * cnidbufp;
+ size_t cnidbufsize;
+ int filecnt;
+ int maxfilecnt;
+ u_long block;
+ int lockflags;
+ int i;
+ int error;
+
+ /*
+ * Check if Attributes file overlaps.
+ */
+ if (hfsmp->hfs_attribute_vp) {
+ struct filefork *fp;
+
+ fp = VTOF(hfsmp->hfs_attribute_vp);
+ for (i = 0; i < kHFSPlusExtentDensity; ++i) {
+ block = fp->ff_extents[i].startBlock +
+ fp->ff_extents[i].blockCount;
+ if (block >= startblk) {
+ printf("hfs_reclaimspace: Attributes file can't move\n");
+ return (EPERM);
+ }
+ }
+ }
+
+ /* For now we'll move a maximum of 16,384 files. */
+ maxfilecnt = MIN(hfsmp->hfs_filecount, 16384);
+ cnidbufsize = maxfilecnt * sizeof(cnid_t);
+ if (kmem_alloc(kernel_map, (vm_offset_t *)&cnidbufp, cnidbufsize)) {
+ return (ENOMEM);
+ }
+ if (kmem_alloc(kernel_map, (vm_offset_t *)&iterator, sizeof(*iterator))) {
+ kmem_free(kernel_map, (vm_offset_t)cnidbufp, cnidbufsize);
+ return (ENOMEM);
+ }
+
+ saved_next_allocation = hfsmp->nextAllocation;
+ hfsmp->nextAllocation = hfsmp->hfs_metazone_start;
+
+ fcb = VTOF(hfsmp->hfs_catalog_vp);
+ bzero(iterator, sizeof(*iterator));
+
+ btdata.bufferAddress = &filerec;
+ btdata.itemSize = sizeof(filerec);
+ btdata.itemCount = 1;
+
+ /* Keep the Catalog file locked during iteration. */
+ lockflags = hfs_systemfile_lock(hfsmp, SFL_CATALOG, HFS_SHARED_LOCK);
+ error = BTIterateRecord(fcb, kBTreeFirstRecord, iterator, NULL, NULL);
+ if (error) {
+ hfs_systemfile_unlock(hfsmp, lockflags);
+ goto out;
+ }
+
+ /*
+ * Iterate over all the catalog records looking for files
+ * that overlap into the space we're trying to free up.
+ */
+ for (filecnt = 0; filecnt < maxfilecnt; ) {
+ error = BTIterateRecord(fcb, kBTreeNextRecord, iterator, &btdata, NULL);
+ if (error) {
+ if (error == btNotFound)
+ error = 0;
+ break;
+ }
+ if (filerec.recordType != kHFSPlusFileRecord ||
+ filerec.fileID == hfsmp->hfs_jnlfileid)
+ continue;
+ /*
+ * Check if either fork overlaps target space.
+ */
+ for (i = 0; i < kHFSPlusExtentDensity; ++i) {
+ block = filerec.dataFork.extents[i].startBlock +
+ filerec.dataFork.extents[i].blockCount;
+ if (block >= startblk) {
+ if (filerec.fileID == hfsmp->hfs_jnlfileid) {
+ printf("hfs_reclaimspace: cannot move active journal\n");
+ error = EPERM;
+ break;
+ }
+ cnidbufp[filecnt++] = filerec.fileID;
+ break;
+ }
+ block = filerec.resourceFork.extents[i].startBlock +
+ filerec.resourceFork.extents[i].blockCount;
+ if (block >= startblk) {
+ cnidbufp[filecnt++] = filerec.fileID;
+ break;
+ }
+ }
+ }
+ /* All done with catalog. */
+ hfs_systemfile_unlock(hfsmp, lockflags);
+ if (error)
+ goto out;
+
+ /* Now move any files that are in the way. */
+ for (i = 0; i < filecnt; ++i) {
+ struct vnode * rvp;
+
+ if (hfs_vget(hfsmp, cnidbufp[i], &vp, 0) != 0)
+ continue;
+
+ /* Relocate any data fork blocks. */
+ if (VTOF(vp)->ff_blocks > 0) {
+ error = hfs_relocate(vp, hfsmp->hfs_metazone_end + 1, kauth_cred_get(), current_proc());
+ }
+ hfs_unlock(VTOC(vp));
+ if (error)
+ break;
+
+ /* Relocate any resource fork blocks. */
+ if ((VTOC((vp))->c_blocks - VTOF((vp))->ff_blocks) > 0) {
+ error = hfs_vgetrsrc(hfsmp, vp, &rvp, current_proc());
+ if (error)
+ break;
+ hfs_lock(VTOC(rvp), HFS_EXCLUSIVE_LOCK);
+ error = hfs_relocate(rvp, hfsmp->hfs_metazone_end + 1, kauth_cred_get(), current_proc());
+ hfs_unlock(VTOC(rvp));
+ vnode_put(rvp);
+ if (error)
+ break;
+ }
+ vnode_put(vp);
+ vp = NULL;
+ }
+ if (vp) {
+ vnode_put(vp);
+ vp = NULL;
+ }
+
+ /*
+ * Note: this implementation doesn't handle overflow extents.
+ */
+out:
+ kmem_free(kernel_map, (vm_offset_t)iterator, sizeof(*iterator));
+ kmem_free(kernel_map, (vm_offset_t)cnidbufp, cnidbufsize);
+
+ /* On errors restore the roving allocation pointer. */
+ if (error) {
+ hfsmp->nextAllocation = saved_next_allocation;
+ }
+ return (error);
+}
+
+
+/*
+ * Get file system attributes.
+ */
+static int
+hfs_vfs_getattr(struct mount *mp, struct vfs_attr *fsap, __unused vfs_context_t context)
+{
+ ExtendedVCB *vcb = VFSTOVCB(mp);
+ struct hfsmount *hfsmp = VFSTOHFS(mp);
+ u_long freeCNIDs;
+
+ freeCNIDs = (u_long)0xFFFFFFFF - (u_long)hfsmp->vcbNxtCNID;
+
+ VFSATTR_RETURN(fsap, f_objcount, (uint64_t)hfsmp->vcbFilCnt + (uint64_t)hfsmp->vcbDirCnt);
+ VFSATTR_RETURN(fsap, f_filecount, (uint64_t)hfsmp->vcbFilCnt);
+ VFSATTR_RETURN(fsap, f_dircount, (uint64_t)hfsmp->vcbDirCnt);
+ VFSATTR_RETURN(fsap, f_maxobjcount, (uint64_t)0xFFFFFFFF);
+ VFSATTR_RETURN(fsap, f_iosize, (size_t)(MAX_UPL_TRANSFER * PAGE_SIZE));
+ VFSATTR_RETURN(fsap, f_blocks, (uint64_t)hfsmp->totalBlocks);
+ VFSATTR_RETURN(fsap, f_bfree, (uint64_t)hfs_freeblks(hfsmp, 0));
+ VFSATTR_RETURN(fsap, f_bavail, (uint64_t)hfs_freeblks(hfsmp, 1));
+ VFSATTR_RETURN(fsap, f_bsize, (uint32_t)vcb->blockSize);
+ /* XXX needs clarification */
+ VFSATTR_RETURN(fsap, f_bused, hfsmp->totalBlocks - hfs_freeblks(hfsmp, 1));
+ /* Maximum files is constrained by total blocks. */
+ VFSATTR_RETURN(fsap, f_files, (uint64_t)(hfsmp->totalBlocks - 2));
+ VFSATTR_RETURN(fsap, f_ffree, MIN((uint64_t)freeCNIDs, (uint64_t)hfs_freeblks(hfsmp, 1)));
+
+ fsap->f_fsid.val[0] = hfsmp->hfs_raw_dev;
+ fsap->f_fsid.val[1] = vfs_typenum(mp);
+ VFSATTR_SET_SUPPORTED(fsap, f_fsid);
+
+ VFSATTR_RETURN(fsap, f_signature, vcb->vcbSigWord);
+ VFSATTR_RETURN(fsap, f_carbon_fsid, 0);
+
+ if (VFSATTR_IS_ACTIVE(fsap, f_capabilities)) {
+ vol_capabilities_attr_t *cap;
+
+ cap = &fsap->f_capabilities;
+
+ if (hfsmp->hfs_flags & HFS_STANDARD) {
+ cap->capabilities[VOL_CAPABILITIES_FORMAT] =
+ VOL_CAP_FMT_PERSISTENTOBJECTIDS |
+ VOL_CAP_FMT_CASE_PRESERVING |
+ VOL_CAP_FMT_FAST_STATFS;
+ } else {
+ cap->capabilities[VOL_CAPABILITIES_FORMAT] =
+ VOL_CAP_FMT_PERSISTENTOBJECTIDS |
+ VOL_CAP_FMT_SYMBOLICLINKS |
+ VOL_CAP_FMT_HARDLINKS |
+ VOL_CAP_FMT_JOURNAL |
+ (hfsmp->jnl ? VOL_CAP_FMT_JOURNAL_ACTIVE : 0) |
+ (hfsmp->hfs_flags & HFS_CASE_SENSITIVE ? VOL_CAP_FMT_CASE_SENSITIVE : 0) |
+ VOL_CAP_FMT_CASE_PRESERVING |
+ VOL_CAP_FMT_FAST_STATFS |
+ VOL_CAP_FMT_2TB_FILESIZE;
+ }
+ cap->capabilities[VOL_CAPABILITIES_INTERFACES] =
+ VOL_CAP_INT_SEARCHFS |
+ VOL_CAP_INT_ATTRLIST |
+ VOL_CAP_INT_NFSEXPORT |
+ VOL_CAP_INT_READDIRATTR |
+ VOL_CAP_INT_EXCHANGEDATA |
+ VOL_CAP_INT_ALLOCATE |
+ VOL_CAP_INT_VOL_RENAME |
+ VOL_CAP_INT_ADVLOCK |
+ VOL_CAP_INT_FLOCK;
+ cap->capabilities[VOL_CAPABILITIES_RESERVED1] = 0;
+ cap->capabilities[VOL_CAPABILITIES_RESERVED2] = 0;
+
+ cap->valid[VOL_CAPABILITIES_FORMAT] =
+ VOL_CAP_FMT_PERSISTENTOBJECTIDS |
+ VOL_CAP_FMT_SYMBOLICLINKS |
+ VOL_CAP_FMT_HARDLINKS |
+ VOL_CAP_FMT_JOURNAL |
+ VOL_CAP_FMT_JOURNAL_ACTIVE |
+ VOL_CAP_FMT_NO_ROOT_TIMES |
+ VOL_CAP_FMT_SPARSE_FILES |
+ VOL_CAP_FMT_ZERO_RUNS |
+ VOL_CAP_FMT_CASE_SENSITIVE |
+ VOL_CAP_FMT_CASE_PRESERVING |
+ VOL_CAP_FMT_FAST_STATFS |
+ VOL_CAP_FMT_2TB_FILESIZE;
+ cap->valid[VOL_CAPABILITIES_INTERFACES] =
+ VOL_CAP_INT_SEARCHFS |
+ VOL_CAP_INT_ATTRLIST |
+ VOL_CAP_INT_NFSEXPORT |
+ VOL_CAP_INT_READDIRATTR |
+ VOL_CAP_INT_EXCHANGEDATA |
+ VOL_CAP_INT_COPYFILE |
+ VOL_CAP_INT_ALLOCATE |
+ VOL_CAP_INT_VOL_RENAME |
+ VOL_CAP_INT_ADVLOCK |
+ VOL_CAP_INT_FLOCK;
+ cap->valid[VOL_CAPABILITIES_RESERVED1] = 0;
+ cap->valid[VOL_CAPABILITIES_RESERVED2] = 0;
+ VFSATTR_SET_SUPPORTED(fsap, f_capabilities);
+ }
+ if (VFSATTR_IS_ACTIVE(fsap, f_attributes)) {
+ vol_attributes_attr_t *attrp = &fsap->f_attributes;
+
+ attrp->validattr.commonattr = ATTR_CMN_VALIDMASK;
+ attrp->validattr.volattr = ATTR_VOL_VALIDMASK & ~ATTR_VOL_INFO;
+ attrp->validattr.dirattr = ATTR_DIR_VALIDMASK;
+ attrp->validattr.fileattr = ATTR_FILE_VALIDMASK;
+ attrp->validattr.forkattr = 0;
+
+ attrp->nativeattr.commonattr = ATTR_CMN_VALIDMASK;
+ attrp->nativeattr.volattr = ATTR_VOL_VALIDMASK & ~ATTR_VOL_INFO;
+ attrp->nativeattr.dirattr = ATTR_DIR_VALIDMASK;
+ attrp->nativeattr.fileattr = ATTR_FILE_VALIDMASK;
+ attrp->nativeattr.forkattr = 0;
+ VFSATTR_SET_SUPPORTED(fsap, f_attributes);
+ }
+ fsap->f_create_time.tv_sec = hfsmp->vcbCrDate;
+ fsap->f_create_time.tv_nsec = 0;
+ VFSATTR_SET_SUPPORTED(fsap, f_create_time);
+ fsap->f_modify_time.tv_sec = hfsmp->vcbLsMod;
+ fsap->f_modify_time.tv_nsec = 0;
+ VFSATTR_SET_SUPPORTED(fsap, f_modify_time);
+
+ fsap->f_backup_time.tv_sec = hfsmp->vcbVolBkUp;
+ fsap->f_backup_time.tv_nsec = 0;
+ VFSATTR_SET_SUPPORTED(fsap, f_backup_time);
+ if (VFSATTR_IS_ACTIVE(fsap, f_fssubtype)) {
+ uint16_t subtype = 0;
+
+ /*
+ * Subtypes (flavors) for HFS
+ * 0: Mac OS Extended
+ * 1: Mac OS Extended (Journaled)
+ * 2: Mac OS Extended (Case Sensitive)
+ * 3: Mac OS Extended (Case Sensitive, Journaled)
+ * 4 - 127: Reserved
+ * 128: Mac OS Standard
+ *
+ */
+ if (hfsmp->hfs_flags & HFS_STANDARD) {
+ subtype = HFS_SUBTYPE_STANDARDHFS;
+ } else /* HFS Plus */ {
+ if (hfsmp->jnl)
+ subtype |= HFS_SUBTYPE_JOURNALED;
+ if (hfsmp->hfs_flags & HFS_CASE_SENSITIVE)
+ subtype |= HFS_SUBTYPE_CASESENSITIVE;
+ }
+ fsap->f_fssubtype = subtype;
+ VFSATTR_SET_SUPPORTED(fsap, f_fssubtype);
+ }
+
+ if (VFSATTR_IS_ACTIVE(fsap, f_vol_name)) {
+ strncpy(fsap->f_vol_name, hfsmp->vcbVN, MAXPATHLEN);
+ fsap->f_vol_name[MAXPATHLEN - 1] = 0;
+ VFSATTR_SET_SUPPORTED(fsap, f_vol_name);
+ }
+ return (0);
+}
+
+/*
+ * Perform a volume rename. Requires the FS' root vp.
+ */
+static int
+hfs_rename_volume(struct vnode *vp, const char *name, proc_t p)
+{
+ ExtendedVCB *vcb = VTOVCB(vp);
+ struct cnode *cp = VTOC(vp);
+ struct hfsmount *hfsmp = VTOHFS(vp);
+ struct cat_desc to_desc;
+ struct cat_desc todir_desc;
+ struct cat_desc new_desc;
+ cat_cookie_t cookie;
+ int lockflags;
+ int error = 0;
+
+ /*
+ * Ignore attempts to rename a volume to a zero-length name.
+ */
+ if (name[0] == 0)
+ return(0);
+
+ bzero(&to_desc, sizeof(to_desc));
+ bzero(&todir_desc, sizeof(todir_desc));
+ bzero(&new_desc, sizeof(new_desc));
+ bzero(&cookie, sizeof(cookie));
+
+ todir_desc.cd_parentcnid = kHFSRootParentID;
+ todir_desc.cd_cnid = kHFSRootFolderID;
+ todir_desc.cd_flags = CD_ISDIR;
+
+ to_desc.cd_nameptr = name;
+ to_desc.cd_namelen = strlen(name);
+ to_desc.cd_parentcnid = kHFSRootParentID;
+ to_desc.cd_cnid = cp->c_cnid;
+ to_desc.cd_flags = CD_ISDIR;
+
+ if ((error = hfs_lock(cp, HFS_EXCLUSIVE_LOCK)) == 0) {
+ if ((error = hfs_start_transaction(hfsmp)) == 0) {
+ if ((error = cat_preflight(hfsmp, CAT_RENAME, &cookie, p)) == 0) {
+ lockflags = hfs_systemfile_lock(hfsmp, SFL_CATALOG, HFS_EXCLUSIVE_LOCK);
+
+ error = cat_rename(hfsmp, &cp->c_desc, &todir_desc, &to_desc, &new_desc);
+
+ /*
+ * If successful, update the name in the VCB, ensure it's terminated.
+ */
+ if (!error) {
+ strncpy(vcb->vcbVN, name, sizeof(vcb->vcbVN));
+ vcb->vcbVN[sizeof(vcb->vcbVN) - 1] = 0;
+ }
+
+ hfs_systemfile_unlock(hfsmp, lockflags);
+ cat_postflight(hfsmp, &cookie, p);
+
+ if (error)
+ vcb->vcbFlags |= 0xFF00;
+ (void) hfs_flushvolumeheader(hfsmp, MNT_WAIT, 0);
+ }
+ hfs_end_transaction(hfsmp);
+ }
+ if (!error) {
+ /* Release old allocated name buffer */
+ if (cp->c_desc.cd_flags & CD_HASBUF) {
+ char *name = cp->c_desc.cd_nameptr;
+
+ cp->c_desc.cd_nameptr = 0;
+ cp->c_desc.cd_namelen = 0;
+ cp->c_desc.cd_flags &= ~CD_HASBUF;
+ vfs_removename(name);
+ }
+ /* Update cnode's catalog descriptor */
+ replace_desc(cp, &new_desc);
+ vcb->volumeNameEncodingHint = new_desc.cd_encoding;
+ cp->c_touch_chgtime = TRUE;
+ }
+
+ hfs_unlock(cp);
+ }
+
+ return(error);
+}
+
+/*
+ * Get file system attributes.
+ */
+static int
+hfs_vfs_setattr(struct mount *mp, struct vfs_attr *fsap, __unused vfs_context_t context)
+{
+ kauth_cred_t cred = vfs_context_ucred(context);
+ int error = 0;
+
+ /*
+ * Must be superuser or owner of filesystem to change volume attributes
+ */
+ if (!kauth_cred_issuser(cred) && (kauth_cred_getuid(cred) != vfs_statfs(mp)->f_owner))
+ return(EACCES);
+
+ if (VFSATTR_IS_ACTIVE(fsap, f_vol_name)) {
+ vnode_t root_vp;
+
+ error = hfs_vfs_root(mp, &root_vp, context);
+ if (error)
+ goto out;
+
+ error = hfs_rename_volume(root_vp, fsap->f_vol_name, vfs_context_proc(context));
+ (void) vnode_put(root_vp);
+ if (error)
+ goto out;
+
+ VFSATTR_SET_SUPPORTED(fsap, f_vol_name);
+ }
+
+out:
+ return error;
+}
+
+
/*
* hfs vfs operations.
*/
hfs_mount,
hfs_start,
hfs_unmount,
- hfs_root,
+ hfs_vfs_root,
hfs_quotactl,
- hfs_statfs,
+ hfs_vfs_getattr, /* was hfs_statfs */
hfs_sync,
- hfs_vget,
+ hfs_vfs_vget,
hfs_fhtovp,
hfs_vptofh,
hfs_init,
- hfs_sysctl
+ hfs_sysctl,
+ hfs_vfs_setattr
};
projects / apple / xnu.git / blobdiff