xnu-4570.71.2.tar.gz

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

diff --git a/bsd/sys/vnode.h b/bsd/sys/vnode.h
index 0baabcbd71015c476c9055f2e371787634d404f6..74e0704e83ae8dae5fb37743a537638f9f1d2a80 100644 (file)
--- a/bsd/sys/vnode.h
+++ b/bsd/sys/vnode.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2017 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -117,7 +117,7 @@ enum vtagtype       {
  */
 #define VNODE_READ     0x01
 #define VNODE_WRITE    0x02
-
+#define VNODE_BLOCKMAP_NO_TRACK 0x04 // APFS Fusion: Do not track this request
 
 
 /* flags for VNOP_ALLOCATE */
@@ -551,6 +551,55 @@ struct vnode_trigger_param {
 #define VNODE_ATTR_va_private_size     (1LL<<43)       /* 80000000000 */
 
 #define VNODE_ATTR_BIT(n)      (VNODE_ATTR_ ## n)
+
+/*
+ * ALL of the attributes.
+ */
+#define        VNODE_ATTR_ALL          (VNODE_ATTR_BIT(va_rdev) |              \
+                               VNODE_ATTR_BIT(va_nlink) |              \
+                               VNODE_ATTR_BIT(va_total_size) |         \
+                               VNODE_ATTR_BIT(va_total_alloc) |        \
+                               VNODE_ATTR_BIT(va_data_size) |          \
+                               VNODE_ATTR_BIT(va_data_alloc) |         \
+                               VNODE_ATTR_BIT(va_iosize) |             \
+                               VNODE_ATTR_BIT(va_uid) |                \
+                               VNODE_ATTR_BIT(va_gid) |                \
+                               VNODE_ATTR_BIT(va_mode) |               \
+                               VNODE_ATTR_BIT(va_flags) |              \
+                               VNODE_ATTR_BIT(va_acl) |                \
+                               VNODE_ATTR_BIT(va_create_time) |        \
+                               VNODE_ATTR_BIT(va_access_time) |        \
+                               VNODE_ATTR_BIT(va_modify_time) |        \
+                               VNODE_ATTR_BIT(va_change_time) |        \
+                               VNODE_ATTR_BIT(va_backup_time) |        \
+                               VNODE_ATTR_BIT(va_fileid) |             \
+                               VNODE_ATTR_BIT(va_linkid) |             \
+                               VNODE_ATTR_BIT(va_parentid) |           \
+                               VNODE_ATTR_BIT(va_fsid) |               \
+                               VNODE_ATTR_BIT(va_filerev) |            \
+                               VNODE_ATTR_BIT(va_gen) |                \
+                               VNODE_ATTR_BIT(va_encoding) |           \
+                               VNODE_ATTR_BIT(va_type) |               \
+                               VNODE_ATTR_BIT(va_name) |               \
+                               VNODE_ATTR_BIT(va_uuuid) |              \
+                               VNODE_ATTR_BIT(va_guuid) |              \
+                               VNODE_ATTR_BIT(va_nchildren) |          \
+                               VNODE_ATTR_BIT(va_dirlinkcount) |       \
+                               VNODE_ATTR_BIT(va_addedtime) |          \
+                               VNODE_ATTR_BIT(va_dataprotect_class) |  \
+                               VNODE_ATTR_BIT(va_dataprotect_flags) |  \
+                               VNODE_ATTR_BIT(va_document_id) |        \
+                               VNODE_ATTR_BIT(va_devid) |              \
+                               VNODE_ATTR_BIT(va_objtype) |            \
+                               VNODE_ATTR_BIT(va_objtag) |             \
+                               VNODE_ATTR_BIT(va_user_access) |        \
+                               VNODE_ATTR_BIT(va_finderinfo) |         \
+                               VNODE_ATTR_BIT(va_rsrc_length) |        \
+                               VNODE_ATTR_BIT(va_rsrc_alloc) |         \
+                               VNODE_ATTR_BIT(va_fsid64) |             \
+                               VNODE_ATTR_BIT(va_write_gencount) |     \
+                               VNODE_ATTR_BIT(va_private_size))
+
 /*
  * Read-only attributes.
  */
@@ -570,7 +619,6 @@ struct vnode_trigger_param {
                                VNODE_ATTR_BIT(va_type) |               \
                                VNODE_ATTR_BIT(va_nchildren) |          \
                                VNODE_ATTR_BIT(va_dirlinkcount) |       \
-                               VNODE_ATTR_BIT(va_addedtime) |          \
                                VNODE_ATTR_BIT(va_devid) |              \
                                VNODE_ATTR_BIT(va_objtype) |            \
                                VNODE_ATTR_BIT(va_objtag) |             \
@@ -754,7 +802,8 @@ extern int          vttoif_tab[];
 #define VNODE_READDIR_NAMEMAX     0x0008   /* For extended readdir, try to limit names to NAME_MAX bytes */
 
 /* VNOP_CLONEFILE flags: */
-#define VNODE_CLONEFILE_DEFAULT   0x0000
+#define VNODE_CLONEFILE_DEFAULT       0x0000
+#define VNODE_CLONEFILE_NOOWNERCOPY   0x0001 /* Don't copy ownership information */
 
 
 #define        NULLVP  ((struct vnode *)NULL)
@@ -1045,7 +1094,6 @@ int       vnode_ischr(vnode_t vp);
  */
 int    vnode_isswap(vnode_t vp);
 
-#ifdef __APPLE_API_UNSTABLE
 /*!
  @function vnode_isnamedstream
  @abstract Determine if a vnode is a named stream.
@@ -1053,7 +1101,6 @@ int       vnode_isswap(vnode_t vp);
  @return Nonzero if the vnode is a named stream, 0 otherwise.
  */
 int    vnode_isnamedstream(vnode_t vp);
-#endif
 
 /*!
  @function vnode_ismountedon
@@ -1342,7 +1389,7 @@ int       vfs_context_issignal(vfs_context_t ctx, sigset_t mask);
  @function vfs_context_suser
  @abstract Determine if a vfs_context_t corresponds to the superuser.
  @param ctx Context to examine.
- @return Nonzero if context belongs to superuser, 0 otherwise.
+ @return 0 if context belongs to superuser, EPERM otherwise.
  */
 int    vfs_context_suser(vfs_context_t ctx);
 
@@ -1588,6 +1635,21 @@ int      vnode_isdyldsharedcache(vnode_t vp);
  */
 int    vn_getpath_fsenter(struct vnode *vp, char *pathbuf, int *len);
 
+/*!
+ @function vn_getpath_fsenter_with_parent
+ @abstract Attempt to get a vnode's path by entering the file system if needed given a vnode and it's directory vnode.
+ @discussion Same as vn_getpath_fsenter but is given the directory vnode as well as the target vnode. Used
+to get the path from the vnode while performing rename, rmdir, and unlink. This is done to avoid potential
+dead lock if another thread is doing a forced unmount.
+ @param dvp Containing directory vnode. Must be holding an IO count.
+ @param vp  Vnode whose path to get. Must be holding an IO count.
+ @param pathbuf Buffer in which to store path.
+ @param len Destination for length of resulting path string.  Result will include NULL-terminator in count--that is, "len"
+ will be strlen(pathbuf) + 1.
+ @return 0 for success or an error.
+*/
+int    vn_getpath_fsenter_with_parent(struct vnode *dvp, struct vnode *vp, char *pathbuf, int *len);
+
 #endif /* KERNEL_PRIVATE */
 
 #define        VNODE_UPDATE_PARENT     0x01