xnu-3789.70.16.tar.gz

[apple/xnu.git] / bsd / sys / vnode_internal.h

diff --git a/bsd/sys/vnode_internal.h b/bsd/sys/vnode_internal.h
index aa296e4a01594c43bc6946914b715154714be002..bcc58053ba1b47940314683d80b7b8d80e1c2a8b 100644 (file)
--- a/bsd/sys/vnode_internal.h
+++ b/bsd/sys/vnode_internal.h
@@ -1,23 +1,29 @@
 /*
 /*

- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  * 
  * 

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

  * 
  * 

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

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

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

  * 
  * 

- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*
  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*


@@ -54,12 +60,16 @@
  *
  *     @(#)vnode.h     8.17 (Berkeley) 5/20/95
  */
  *
  *     @(#)vnode.h     8.17 (Berkeley) 5/20/95
  */

- 
+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
+ * support for mandatory and extensible security protections.  This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */
+

 #ifndef _SYS_VNODE_INTERNAL_H_
 #define _SYS_VNODE_INTERNAL_H_
 
 #ifndef _SYS_VNODE_INTERNAL_H_
 #define _SYS_VNODE_INTERNAL_H_
 

-#define INTERIM_FSNODE_LOCK    1
-

 #include <sys/appleapiopts.h>
 #include <sys/cdefs.h>
 #include <sys/queue.h>
 #include <sys/appleapiopts.h>
 #include <sys/cdefs.h>
 #include <sys/queue.h>


@@ -75,18 +85,36 @@
 #include <sys/vnode.h>
 #include <sys/namei.h>
 #include <sys/vfs_context.h>
 #include <sys/vnode.h>
 #include <sys/namei.h>
 #include <sys/vfs_context.h>

+#include <sys/sysctl.h>

 
 
 struct lockf;
 
 
 struct lockf;

+struct label;

 
 LIST_HEAD(buflists, buf);
 
 
 LIST_HEAD(buflists, buf);
 

-
-struct unsafe_fsnode {
-       lck_mtx_t fsnodelock;
-       int32_t   fsnode_count;
-       void *    fsnodeowner;
+#if CONFIG_TRIGGERS
+/*
+ * VFS Internal (private) trigger vnode resolver info.
+ */
+struct vnode_resolve {
+       lck_mtx_t                               vr_lock;   /* protects vnode_resolve_t fields */
+       trigger_vnode_resolve_callback_t        vr_resolve_func;
+       trigger_vnode_unresolve_callback_t      vr_unresolve_func;
+       trigger_vnode_rearm_callback_t          vr_rearm_func;
+       trigger_vnode_reclaim_callback_t        vr_reclaim_func;
+       void *                                  vr_data;   /* private data for resolver */
+       uint32_t                                vr_flags;
+       uint32_t                                vr_lastseq;

 };
 };

+typedef struct vnode_resolve *vnode_resolve_t;
+
+/* private vr_flags */
+#define VNT_RESOLVED        (1UL << 31)
+#define VNT_VFS_UNMOUNTED   (1UL << 30)
+#define VNT_EXTERNAL       (1UL << 29)
+
+#endif /* CONFIG_TRIGGERS */

 
 /*
  * Reading or writing any of these items requires holding the appropriate lock.
 
 /*
  * Reading or writing any of these items requires holding the appropriate lock.


@@ -100,19 +128,21 @@ struct vnode {
        lck_mtx_t v_lock;                       /* vnode mutex */
        TAILQ_ENTRY(vnode) v_freelist;          /* vnode freelist */
        TAILQ_ENTRY(vnode) v_mntvnodes;         /* vnodes for mount point */
        lck_mtx_t v_lock;                       /* vnode mutex */
        TAILQ_ENTRY(vnode) v_freelist;          /* vnode freelist */
        TAILQ_ENTRY(vnode) v_mntvnodes;         /* vnodes for mount point */

+        TAILQ_HEAD(, namecache) v_ncchildren;  /* name cache entries that regard us as their parent */

         LIST_HEAD(, namecache) v_nclinks;      /* name cache entries that name this vnode */
         LIST_HEAD(, namecache) v_nclinks;      /* name cache entries that name this vnode */

-        LIST_HEAD(, namecache) v_ncchildren;   /* name cache entries that regard us as there parent */

         vnode_t         v_defer_reclaimlist;           /* in case we have to defer the reclaim to avoid recursion */
         vnode_t         v_defer_reclaimlist;           /* in case we have to defer the reclaim to avoid recursion */

-       u_long   v_flag;                        /* vnode flags (see below) */
-       u_short  v_lflag;                       /* vnode local and named ref flags */
-       u_char   v_iterblkflags;                /* buf iterator flags */
-        u_char  v_references;                  /* number of times io_count has been granted */
+        uint32_t v_listflag;                   /* flags protected by the vnode_list_lock (see below) */
+       uint32_t v_flag;                        /* vnode flags (see below) */
+       uint16_t v_lflag;                       /* vnode local and named ref flags */
+       uint8_t  v_iterblkflags;                /* buf iterator flags */
+       uint8_t  v_references;                  /* number of times io_count has been granted */

        int32_t  v_kusecount;                   /* count of in-kernel refs */
        int32_t  v_usecount;                    /* reference count of users */
        int32_t  v_iocount;                     /* iocounters */
        void *   v_owner;                       /* act that owns the vnode */
        int32_t  v_kusecount;                   /* count of in-kernel refs */
        int32_t  v_usecount;                    /* reference count of users */
        int32_t  v_iocount;                     /* iocounters */
        void *   v_owner;                       /* act that owns the vnode */

-       enum vtype v_type;                      /* vnode type */
-       u_long   v_id;                          /* identity of vnode contents */
+       uint16_t v_type;                        /* vnode type */
+       uint16_t v_tag;                         /* type of underlying data */
+       uint32_t v_id;                          /* identity of vnode contents */

        union {
                struct mount    *vu_mountedhere;/* ptr to mounted vfs (VDIR) */
                struct socket   *vu_socket;     /* unix ipc (VSOCK) */
        union {
                struct mount    *vu_mountedhere;/* ptr to mounted vfs (VDIR) */
                struct socket   *vu_socket;     /* unix ipc (VSOCK) */


@@ -122,20 +152,33 @@ struct vnode {
        } v_un;
        struct  buflists v_cleanblkhd;          /* clean blocklist head */
        struct  buflists v_dirtyblkhd;          /* dirty blocklist head */
        } v_un;
        struct  buflists v_cleanblkhd;          /* clean blocklist head */
        struct  buflists v_dirtyblkhd;          /* dirty blocklist head */

-        kauth_cred_t v_cred;
-        int    v_cred_timestamp;
-       long    v_numoutput;                    /* num of writes in progress */
-       long    v_writecount;                   /* reference count of writers */
-       char *  v_name;                         /* name component of the vnode */
+       struct klist v_knotes;                  /* knotes attached to this vnode */
+        /*
+        * the following 4 fields are protected
+        * by the name_cache_lock held in 
+        * excluive mode
+        */
+        kauth_cred_t   v_cred;                 /* last authorized credential */
+        kauth_action_t v_authorized_actions;   /* current authorized actions for v_cred */
+        int            v_cred_timestamp;       /* determine if entry is stale for MNTK_AUTH_OPAQUE */
+        int            v_nc_generation;        /* changes when nodes are removed from the name cache */
+        /*
+        * back to the vnode lock for protection
+        */
+       int32_t         v_numoutput;                    /* num of writes in progress */
+       int32_t         v_writecount;                   /* reference count of writers */
+       const char *v_name;                     /* name component of the vnode */

        vnode_t v_parent;                       /* pointer to parent vnode */
        vnode_t v_parent;                       /* pointer to parent vnode */

-#ifdef INTERIM_FSNODE_LOCK

        struct lockf    *v_lockf;               /* advisory lock list head */
        struct lockf    *v_lockf;               /* advisory lock list head */

-        struct unsafe_fsnode *v_unsafefs;      /* pointer to struct used to lock */
-#endif                                         /* vnodes on unsafe filesystems */

        int     (**v_op)(void *);               /* vnode operations vector */
        int     (**v_op)(void *);               /* vnode operations vector */

-       enum vtagtype v_tag;                    /* type of underlying data */

        mount_t v_mount;                        /* ptr to vfs we are in */
        void *  v_data;                         /* private data for fs */
        mount_t v_mount;                        /* ptr to vfs we are in */
        void *  v_data;                         /* private data for fs */

+#if CONFIG_MACF
+       struct label *v_label;                  /* MAC security label */
+#endif
+#if CONFIG_TRIGGERS
+       vnode_resolve_t v_resolve;              /* trigger vnode resolve info (VDIR only) */
+#endif /* CONFIG_TRIGGERS */

 };
 
 #define        v_mountedhere   v_un.vu_mountedhere
 };
 
 #define        v_mountedhere   v_un.vu_mountedhere


@@ -154,24 +197,34 @@ struct vnode {
 #define VBI_DIRTY              0x8
 #define VBI_NEWBUF             0x10
 
 #define VBI_DIRTY              0x8
 #define VBI_NEWBUF             0x10
 

+/*
+ * v_listflag
+ */
+#define VLIST_RAGE               0x01          /* vnode is currently in the rapid age list */
+#define VLIST_DEAD               0x02          /* vnode is currently in the dead list */
+#define VLIST_ASYNC_WORK         0x04          /* vnode is currently on the deferred async work queue */

 
 /*
  * v_lflags
  */
 #define        VL_SUSPENDED    0x0001          /* vnode is suspended */
 #define        VL_DRAIN        0x0002          /* vnode is being drained */
 
 /*
  * v_lflags
  */
 #define        VL_SUSPENDED    0x0001          /* vnode is suspended */
 #define        VL_DRAIN        0x0002          /* vnode is being drained */

-#define        VL_TERMINATE    0x0004          /* vnode is marked for termination */
-#define        VL_TERMWANT     0x0008          /* vnode is marked for termination */
-#define        VL_DEAD         0x0010          /* vnode is dead and completed recycle */
-#define        VL_MARKTERM     0x0020          /* vnode is dead and completed recycle */
-#define        VL_MOUNTDEAD    0x0040          /* v_moutnedhere is dead   */
+#define        VL_TERMINATE    0x0004          /* vnode is in the process of being recycled */
+#define        VL_TERMWANT     0x0008          /* there's a waiter  for recycle finish (vnode_getiocount)*/
+#define        VL_DEAD         0x0010          /* vnode is dead, cleaned of filesystem-specific info */
+#define        VL_MARKTERM     0x0020          /* vnode should be recycled when no longer referenced */

 #define VL_NEEDINACTIVE        0x0080          /* delay VNOP_INACTIVE until iocount goes to 0 */
 
 #define VL_NEEDINACTIVE        0x0080          /* delay VNOP_INACTIVE until iocount goes to 0 */
 

+#define        VL_LABEL        0x0100          /* vnode is marked for labeling */
+#define        VL_LABELWAIT    0x0200          /* vnode is marked for labeling */
+#define        VL_LABELED      0x0400          /* vnode is labeled */
+#define        VL_LWARNED      0x0800
+#define VL_HASSTREAMS  0x1000          /* vnode has had at least one associated named stream vnode (may not have one any longer) */
+

 #define        VNAMED_UBC      0x2000          /* ubc named reference */
 #define VNAMED_MOUNT   0x4000          /* mount point named reference */
 #define        VNAMED_FSHASH   0x8000          /* FS hash named reference */
 
 #define        VNAMED_UBC      0x2000          /* ubc named reference */
 #define VNAMED_MOUNT   0x4000          /* mount point named reference */
 #define        VNAMED_FSHASH   0x8000          /* FS hash named reference */
 

-

 /*
  * v_flags
  */
 /*
  * v_flags
  */


@@ -179,33 +232,82 @@ struct vnode {
 #define        VTEXT           0x000002        /* vnode is a pure text prototype */
 #define        VSYSTEM         0x000004        /* vnode being used by kernel */
 #define        VISTTY          0x000008        /* vnode represents a tty */
 #define        VTEXT           0x000002        /* vnode is a pure text prototype */
 #define        VSYSTEM         0x000004        /* vnode being used by kernel */
 #define        VISTTY          0x000008        /* vnode represents a tty */

-#define        VWASMAPPED      0x000010        /* vnode was mapped before */
-#define        VTERMINATE      0x000020        /* terminating memory object */
-#define        VTERMWANT       0x000040        /* wating for memory object death */
+#define        VRAGE           0x000010        /* vnode is in rapid age state */
+#define VBDEVVP                0x000020        /* vnode created by bdevvp */
+#define VDEVFLUSH      0x000040        /* device vnode after vflush */

 #define        VMOUNT          0x000080        /* mount operation in progress */
 #define        VBWAIT          0x000100        /* waiting for output to complete */
 #define        VMOUNT          0x000080        /* mount operation in progress */
 #define        VBWAIT          0x000100        /* waiting for output to complete */

-#define        VALIASED        0x000200        /* vnode has an alias */
+#define VSHARED_DYLD   0x000200        /* vnode is a dyld shared cache file */

 #define        VNOCACHE_DATA   0x000400        /* don't keep data cached once it's been consumed */
 #define        VSTANDARD       0x000800        /* vnode obtained from common pool */
 #define        VAGE            0x001000        /* Insert vnode at head of free list */
 #define        VRAOFF          0x002000        /* read ahead disabled */
 #define        VNCACHEABLE     0x004000        /* vnode is allowed to be put back in name cache */
 #define        VNOCACHE_DATA   0x000400        /* don't keep data cached once it's been consumed */
 #define        VSTANDARD       0x000800        /* vnode obtained from common pool */
 #define        VAGE            0x001000        /* Insert vnode at head of free list */
 #define        VRAOFF          0x002000        /* read ahead disabled */
 #define        VNCACHEABLE     0x004000        /* vnode is allowed to be put back in name cache */

-#define        VUINACTIVE      0x008000        /* UBC vnode is on inactive list */
+#if NAMEDSTREAMS
+#define        VISSHADOW       0x008000        /* vnode is a shadow file */
+#endif

 #define        VSWAP           0x010000        /* vnode is being used as swapfile */
 #define        VTHROTTLED      0x020000        /* writes or pageouts have been throttled */
                /* wakeup tasks waiting when count falls below threshold */
 #define        VNOFLUSH        0x040000        /* don't vflush() if SKIPSYSTEM */
 #define        VLOCKLOCAL      0x080000        /* this vnode does adv locking in vfs */
 #define        VISHARDLINK     0x100000        /* hard link needs special processing on lookup and in volfs */
 #define        VSWAP           0x010000        /* vnode is being used as swapfile */
 #define        VTHROTTLED      0x020000        /* writes or pageouts have been throttled */
                /* wakeup tasks waiting when count falls below threshold */
 #define        VNOFLUSH        0x040000        /* don't vflush() if SKIPSYSTEM */
 #define        VLOCKLOCAL      0x080000        /* this vnode does adv locking in vfs */
 #define        VISHARDLINK     0x100000        /* hard link needs special processing on lookup and in volfs */

+#define        VISUNION        0x200000        /* union special processing */
+#if NAMEDSTREAMS
+#define        VISNAMEDSTREAM  0x400000        /* vnode is a named stream (eg HFS resource fork) */
+#endif
+#define VOPENEVT        0x800000        /* if process is P_CHECKOPENEVT, then or in the O_EVTONLY flag on open */
+#define VNEEDSSNAPSHOT 0x1000000
+#define VNOCS         0x2000000        /* is there no code signature available */
+#define VISDIRTY       0x4000000        /* vnode will need IO if reclaimed */  
+#define VFASTDEVCANDIDATE  0x8000000        /* vnode is a candidate to store on a fast device */
+#define VAUTOCANDIDATE 0x10000000       /* vnode was automatically marked as a fast-dev candidate */
+/*
+  0x20000000 not used
+  0x40000000 not used
+  0x80000000 not used.
+*/

 
 

-#define VCRED_EXPIRED  2               /* number of seconds to keep cached credential valid */
+/*
+ * This structure describes vnode data which is specific to a file descriptor.
+ * It is currently used only for file descriptors which are for opened for
+ * directories.
+ */
+struct fd_vn_data {
+       lck_mtx_t fv_lock;   /* Used to serialize directory enumeration on fd */
+       off_t     fv_offset; /* Offset to be used */
+       void      *fv_dircookie; /* If FS doesn't like offsets in directories */
+       caddr_t   fv_buf;    /* Temporary buffer to store directory entries */
+       size_t    fv_bufsiz;  /* Valid size of fv_buf */
+       size_t    fv_bufdone; /* How much of fv_buf is processed */
+       size_t    fv_bufallocsiz; /* Allocation size determined for Buffer*/
+       off_t     fv_soff;   /* Starting FS offset for this buffer */
+       off_t     fv_eoff;   /* Ending FS offset for this buffer */
+       int       fv_eofflag;/* Does fv_eoff represent EOF ? */
+};

 
 

+/*
+ * FV_DIRBUF_START_SIZ is the initial size of the buffer passed to VNOP_READDIR.
+ * That may not be enough for some filesytems so the current algorithm works its
+ * way upto FV_DIRBUF_MAX_SIZ
+ */
+#define FV_DIRBUF_DIRENTRY_SIZ (sizeof(struct direntry))
+#define FV_DIRBUF_START_SIZ    FV_DIRBUF_DIRENTRY_SIZ
+#define FV_DIRBUF_MAX_SIZ      (4*(sizeof(struct direntry)))
+
+#define FV_LOCK(fvd) lck_mtx_lock(&(((struct fd_vn_data *)fvd)->fv_lock))
+#define FV_UNLOCK(fvd) lck_mtx_unlock(&(((struct fd_vn_data *)fvd)->fv_lock))

 
 /*
  * Global vnode data.
  */
 extern struct vnode *rootvnode;        /* root (i.e. "/") vnode */
 
 
 /*
  * Global vnode data.
  */
 extern struct vnode *rootvnode;        /* root (i.e. "/") vnode */
 

+#ifdef CONFIG_IMGSRC_ACCESS
+#define MAX_IMAGEBOOT_NESTING  2
+extern struct vnode *imgsrc_rootvnodes[];
+#endif /* CONFIG_IMGSRC_ACCESS */
+

 
 /*
  * Mods for exensibility.
 
 /*
  * Mods for exensibility.


@@ -216,12 +318,14 @@ extern    struct vnode *rootvnode;        /* root (i.e. "/") vnode */
  */
 #define VDESC_MAX_VPS          16
 /* Low order 16 flag bits are reserved for willrele flags for vp arguments. */
  */
 #define VDESC_MAX_VPS          16
 /* Low order 16 flag bits are reserved for willrele flags for vp arguments. */

-#define VDESC_VP0_WILLRELE     0x0001
-#define VDESC_VP1_WILLRELE     0x0002
-#define VDESC_VP2_WILLRELE     0x0004
-#define VDESC_VP3_WILLRELE     0x0008
-#define VDESC_NOMAP_VPP                0x0100
-#define VDESC_VPP_WILLRELE     0x0200
+#define VDESC_VP0_WILLRELE     0x00001
+#define VDESC_VP1_WILLRELE     0x00002
+#define VDESC_VP2_WILLRELE     0x00004
+#define VDESC_VP3_WILLRELE     0x00008
+#define VDESC_NOMAP_VPP                0x00100
+#define VDESC_VPP_WILLRELE     0x00200
+
+#define VDESC_DISABLED         0x10000 /* descriptor defined but op is unused, has no op slot */

 
 /*
  * VDESC_NO_OFFSET is used to identify the end of the offset list
 
 /*
  * VDESC_NO_OFFSET is used to identify the end of the offset list


@@ -234,7 +338,7 @@ extern      struct vnode *rootvnode;        /* root (i.e. "/") vnode */
  */
 struct vnodeop_desc {
        int     vdesc_offset;           /* offset in vector--first for speed */
  */
 struct vnodeop_desc {
        int     vdesc_offset;           /* offset in vector--first for speed */

-       char    *vdesc_name;            /* a readable name for debugging */
+       const char *vdesc_name;         /* a readable name for debugging */

        int     vdesc_flags;            /* VDESC_* flags */
 
        /*
        int     vdesc_flags;            /* VDESC_* flags */
 
        /*


@@ -262,10 +366,6 @@ struct vnodeop_desc {
  */
 extern struct vnodeop_desc *vnodeop_descs[];
 
  */
 extern struct vnodeop_desc *vnodeop_descs[];
 

-/*
- * Interlock for scanning list of vnodes attached to a mountpoint
- */
-extern void * mntvnode_slock;

 
 /*
  * This macro is very helpful in defining those offsets in the vdesc struct.
 
 /*
  * This macro is very helpful in defining those offsets in the vdesc struct.


@@ -299,73 +399,209 @@ extern void * mntvnode_slock;
 
 struct ostat;
 
 
 struct ostat;
 

-int    build_path(vnode_t first_vp, char *buff, int buflen, int *outlen);
-int    bdevvp(dev_t dev, struct vnode **vpp);
+/* bdevvp moved to vnode.h as private KPI */

 void   cvtstat(struct stat *st, struct ostat *ost);
 void   vprint(const char *label, struct vnode *vp);
 
 
 void   cvtstat(struct stat *st, struct ostat *ost);
 void   vprint(const char *label, struct vnode *vp);
 
 

-__private_extern__ int is_package_name(char *name, int len);
-__private_extern__ int set_package_extensions_table(void *data, int nentries, int maxwidth);
-int    vn_rdwr(enum uio_rw rw, struct vnode *vp, caddr_t base,
-                       int len, off_t offset, enum uio_seg segflg, int ioflg,
-                       struct ucred *cred, int *aresid, struct proc *p);
+__private_extern__ int set_package_extensions_table(user_addr_t data, int nentries, int maxwidth);

 int    vn_rdwr_64(enum uio_rw rw, struct vnode *vp, uint64_t base,
                        int64_t len, off_t offset, enum uio_seg segflg,
 int    vn_rdwr_64(enum uio_rw rw, struct vnode *vp, uint64_t base,
                        int64_t len, off_t offset, enum uio_seg segflg,

-                       int ioflg, struct ucred *cred, int *aresid,
+                       int ioflg, kauth_cred_t cred, int64_t *aresid,

                        struct proc *p);
                        struct proc *p);

+#if CONFIG_MACF
+int    vn_setlabel (struct vnode *vp, struct label *intlabel,
+           vfs_context_t context);
+#endif

 void   fifo_printinfo(struct vnode *vp);
 void   fifo_printinfo(struct vnode *vp);

-int    vn_lock(struct vnode *vp, int flags, struct proc *p);

 int    vn_open(struct nameidata *ndp, int fmode, int cmode);
 int    vn_open_modflags(struct nameidata *ndp, int *fmode, int cmode);
 int    vn_open_auth(struct nameidata *ndp, int *fmode, struct vnode_attr *);
 int    vn_open(struct nameidata *ndp, int fmode, int cmode);
 int    vn_open_modflags(struct nameidata *ndp, int *fmode, int cmode);
 int    vn_open_auth(struct nameidata *ndp, int *fmode, struct vnode_attr *);

-int    vn_close(vnode_t, int flags, struct ucred *cred, struct proc *p);
+int    vn_close(vnode_t, int flags, vfs_context_t ctx);
+errno_t vn_remove(vnode_t dvp, vnode_t *vpp, struct nameidata *ndp, int32_t flags, struct vnode_attr *vap, vfs_context_t ctx);
+errno_t vn_rename(struct vnode *fdvp, struct vnode **fvpp, struct componentname *fcnp, struct vnode_attr *fvap,
+                    struct vnode *tdvp, struct vnode **tvpp, struct componentname *tcnp, struct vnode_attr *tvap,
+                    uint32_t flags, vfs_context_t ctx);
+
+void   lock_vnode_and_post(vnode_t, int);
+
+#define post_event_if_success(_vp, _error, _event) \
+       do { \
+               if (0 == (_error)) {    \
+                       lock_vnode_and_post((_vp), (_event)); \
+               } \
+       } while (0) 
+               
+/* Authorization subroutines */
+int    vn_authorize_open_existing(vnode_t vp, struct componentname *cnp, int fmode, vfs_context_t ctx, void *reserved);
+int    vn_authorize_create(vnode_t, struct componentname *, struct vnode_attr *, vfs_context_t, void*); 
+int    vn_attribute_prepare(vnode_t dvp, struct vnode_attr *vap, uint32_t *defaulted_fieldsp, vfs_context_t ctx);
+void   vn_attribute_cleanup(struct vnode_attr *vap, uint32_t defaulted_fields);
+int    vn_authorize_unlink(vnode_t dvp, vnode_t vp, struct componentname *cnp, vfs_context_t ctx, void *reserved);
+int    vn_authorize_rename(struct vnode *fdvp, struct vnode *fvp, struct componentname *fcnp,
+                       struct vnode *tdvp, struct vnode *tvp, struct componentname *tcnp,
+               vfs_context_t ctx, void *reserved);
+int vn_authorize_renamex(struct vnode *fdvp,  struct vnode *fvp,  struct componentname *fcnp,
+                                                struct vnode *tdvp,  struct vnode *tvp,  struct componentname *tcnp,
+                                                vfs_context_t ctx, vfs_rename_flags_t flags, void *reserved);
+int    vn_authorize_rmdir(vnode_t dvp, vnode_t vp, struct componentname *cnp, vfs_context_t ctx, void *reserved);
+
+typedef int (*vn_create_authorizer_t)(vnode_t, struct componentname *, struct vnode_attr *, vfs_context_t, void*);
+int vn_authorize_mkdir(vnode_t, struct componentname *, struct vnode_attr *, vfs_context_t, void*);
+int vn_authorize_null(vnode_t, struct componentname *, struct vnode_attr *, vfs_context_t, void*);
+int vnode_attr_authorize_dir_clone(struct vnode_attr *vap, kauth_action_t action,
+    struct vnode_attr *dvap, vnode_t sdvp, mount_t mp, dir_clone_authorizer_op_t vattr_op,
+    vfs_context_t ctx, void *reserved);
+/* End of authorization subroutines */

 
 #define VN_CREATE_NOAUTH               (1<<0)
 #define VN_CREATE_NOINHERIT            (1<<1)
 
 #define VN_CREATE_NOAUTH               (1<<0)
 #define VN_CREATE_NOINHERIT            (1<<1)

-errno_t vn_create(vnode_t, vnode_t *, struct componentname *, struct vnode_attr *, int flags, vfs_context_t);
-
+#define VN_CREATE_UNION                        (1<<2)
+#define        VN_CREATE_NOLABEL               (1<<3)
+#define        VN_CREATE_DOOPEN                (1<<4)  /* Open file if a batched operation is available */
+errno_t vn_create(vnode_t, vnode_t *, struct nameidata *, struct vnode_attr *, uint32_t, int, uint32_t*, vfs_context_t);
+int    vn_mkdir(vnode_t dvp, vnode_t *vpp, struct nameidata *ndp, struct vnode_attr *vap, vfs_context_t ctx);
+int    vn_rmdir(vnode_t dvp, vnode_t *vpp, struct nameidata *ndp, struct vnode_attr *vap, vfs_context_t ctx);

 
 int    vn_getxattr(vnode_t, const char *, uio_t, size_t *, int, vfs_context_t);
 int    vn_setxattr(vnode_t, const char *, uio_t, int, vfs_context_t);
 int    vn_removexattr(vnode_t, const char *, int, vfs_context_t);
 int    vn_listxattr(vnode_t, uio_t, size_t *, int, vfs_context_t);
 
 
 int    vn_getxattr(vnode_t, const char *, uio_t, size_t *, int, vfs_context_t);
 int    vn_setxattr(vnode_t, const char *, uio_t, int, vfs_context_t);
 int    vn_removexattr(vnode_t, const char *, int, vfs_context_t);
 int    vn_listxattr(vnode_t, uio_t, size_t *, int, vfs_context_t);
 

+#if NAMEDSTREAMS
+errno_t  vnode_getnamedstream(vnode_t, vnode_t *, const char *, enum nsoperation, int, vfs_context_t);
+errno_t  vnode_makenamedstream(vnode_t, vnode_t *, const char *, int, vfs_context_t);
+errno_t  vnode_removenamedstream(vnode_t, vnode_t, const char *, int, vfs_context_t);
+errno_t  vnode_flushnamedstream(vnode_t vp, vnode_t svp, vfs_context_t context);
+errno_t  vnode_relenamedstream(vnode_t vp, vnode_t svp);
+errno_t  vnode_verifynamedstream (vnode_t vp);
+#endif
+
+
+void   nchinit(void);
+int    resize_namecache(uint32_t newsize);

 void   name_cache_lock_shared(void);
 void   name_cache_lock(void);
 void   name_cache_unlock(void);
 void   name_cache_lock_shared(void);
 void   name_cache_lock(void);
 void   name_cache_unlock(void);

+void   cache_enter_with_gen(vnode_t dvp, vnode_t vp, struct componentname *cnp, int gen);
+const char *cache_enter_create(vnode_t dvp, vnode_t vp, struct componentname *cnp);

 
 

-char * vnode_getname(vnode_t vp);
-void   vnode_putname(char *name);
+extern int nc_disabled;        

 
 

-vnode_t        vnode_getparent(vnode_t vp);
+#define        vnode_lock_convert(v)   lck_mtx_convert_spin(&(v)->v_lock)
+
+void   vnode_lock_spin(vnode_t);

 
 

-int vn_pathconf(vnode_t, int, register_t *, vfs_context_t);

 
 void   vnode_list_lock(void);
 void   vnode_list_unlock(void);
 
 void   vnode_list_lock(void);
 void   vnode_list_unlock(void);

-int    vnode_ref_ext(vnode_t, int);
-void   vnode_rele_ext(vnode_t, int, int);
+
+#define VNODE_REF_FORCE        0x1
+int    vnode_ref_ext(vnode_t, int, int);
+

 void   vnode_rele_internal(vnode_t, int, int, int);
 void   vnode_rele_internal(vnode_t, int, int, int);

-int    vnode_getwithref(vnode_t);
+#ifdef BSD_KERNEL_PRIVATE
+int    vnode_getalways(vnode_t);
+int    vget_internal(vnode_t, int, int);
+errno_t vnode_getiocount(vnode_t, unsigned int, int);
+#endif /* BSD_KERNEL_PRIVATE */
+int    vnode_get_locked(vnode_t);

 int    vnode_put_locked(vnode_t);
 
 int    vnode_issock(vnode_t);
 int    vnode_put_locked(vnode_t);
 
 int    vnode_issock(vnode_t);

+int    vnode_isaliased(vnode_t);

 
 void   unlock_fsnode(vnode_t, int *);
 int    lock_fsnode(vnode_t, int *);
 
 errno_t        vnode_resume(vnode_t);
 
 void   unlock_fsnode(vnode_t, int *);
 int    lock_fsnode(vnode_t, int *);
 
 errno_t        vnode_resume(vnode_t);

+errno_t        vnode_suspend(vnode_t);
+
+
+errno_t        vnode_mtime(vnode_t, struct timespec *, vfs_context_t);
+errno_t vnode_flags(vnode_t, uint32_t *, vfs_context_t);

 
 errno_t        vnode_size(vnode_t, off_t *, vfs_context_t);
 errno_t        vnode_setsize(vnode_t, off_t, int ioflag, vfs_context_t);
 int    vnode_setattr_fallback(vnode_t vp, struct vnode_attr *vap, vfs_context_t ctx);
 
 errno_t        vnode_size(vnode_t, off_t *, vfs_context_t);
 errno_t        vnode_setsize(vnode_t, off_t, int ioflag, vfs_context_t);
 int    vnode_setattr_fallback(vnode_t vp, struct vnode_attr *vap, vfs_context_t ctx);

+int    vnode_isspec(vnode_t vp);
+
+
+#ifdef BSD_KERNEL_PRIVATE
+
+typedef uint32_t compound_vnop_id_t;
+#define        COMPOUND_VNOP_OPEN              0x01
+#define        COMPOUND_VNOP_MKDIR             0x02
+#define        COMPOUND_VNOP_RENAME            0x04
+#define        COMPOUND_VNOP_REMOVE            0x08
+#define        COMPOUND_VNOP_RMDIR             0x10
+
+int    vnode_compound_rename_available(vnode_t vp);
+int    vnode_compound_rmdir_available(vnode_t vp);
+int    vnode_compound_mkdir_available(vnode_t vp);
+int    vnode_compound_remove_available(vnode_t vp);
+int    vnode_compound_open_available(vnode_t vp);
+int            vnode_compound_op_available(vnode_t, compound_vnop_id_t);
+#endif /* BSD_KERNEL_PRIVATE */
+
+void vn_setunionwait(vnode_t);
+void vn_checkunionwait(vnode_t);
+void vn_clearunionwait(vnode_t, int);

 
 void SPECHASH_LOCK(void);
 void SPECHASH_UNLOCK(void);
 
 
 void SPECHASH_LOCK(void);
 void SPECHASH_UNLOCK(void);
 

-int check_cdevmounted(dev_t, enum vtype, int *);
-

 void   vnode_authorize_init(void);
 
 void   vnode_authorize_init(void);
 

+void   vfsinit(void);
+void vnode_lock(vnode_t);
+void vnode_unlock(vnode_t);
+
+void vn_print_state(vnode_t /* vp */, const char * /* fmt */, ...)
+    __printflike(2,3);
+
+#if DEVELOPMENT || DEBUG
+#define VNASSERT(exp, vp, msg)                                         \
+do {                                                                   \
+       if (__improbable(!(exp))) {                                     \
+               vn_print_state(vp, "VNASSERT failed %s:%d\n", __FILE__, \
+                   __LINE__);                                          \
+               panic msg;                                              \
+       }                                                               \
+} while (0)
+#else
+#define VNASSERT(exp, vp, msg)
+#endif /* DEVELOPMENT || DEBUG */
+
+/*
+ * XXX exported symbols; should be static
+ */
+void   vfs_op_init(void);
+void   vfs_opv_init(void);
+
+#ifdef BSD_KERNEL_PRIVATE
+int vfs_sysctl_node SYSCTL_HANDLER_ARGS;
+void vnode_setneedinactive(vnode_t);
+int    vnode_hasnamedstreams(vnode_t); /* Does this vnode have associated named streams? */
+
+void nspace_proc_exit(struct proc *p);
+
+errno_t
+vnode_readdir64(struct vnode *vp, struct uio *uio, int flags, int *eofflag,
+                int *numdirent, vfs_context_t ctxp);
+
+void vnode_setswapmount(vnode_t);
+int64_t        vnode_getswappin_avail(vnode_t);
+
+int vnode_get_snapdir(vnode_t , vnode_t *, vfs_context_t);
+
+#if CONFIG_TRIGGERS
+/* VFS Internal Vnode Trigger Interfaces (Private) */
+int vnode_trigger_resolve(vnode_t, struct nameidata *, vfs_context_t);
+void vnode_trigger_rearm(vnode_t, vfs_context_t);
+void vfs_nested_trigger_unmounts(mount_t, int, vfs_context_t);
+#endif /* CONFIG_TRIGGERS */
+
+#endif /* BSD_KERNEL_PRIVATE */
+

 #endif /* !_SYS_VNODE_INTERNAL_H_ */
 #endif /* !_SYS_VNODE_INTERNAL_H_ */