xnu-2050.7.9.tar.gz

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

diff --git a/bsd/sys/vnode.h b/bsd/sys/vnode.h
index 965518cb08a0a266196a5a3b2ebd95e717550beb..1a93437295f9c7b4d25a8210ee9562525c157000 100644 (file)
--- a/bsd/sys/vnode.h
+++ b/bsd/sys/vnode.h
@@ -145,8 +145,11 @@ enum vtagtype      {
 #define IO_BACKGROUND IO_PASSIVE /* used for backward compatibility.  to be removed after IO_BACKGROUND is no longer
                                                                  * used by DiskImages in-kernel mode */
 #define        IO_NOAUTH       0x8000          /* No authorization checks. */
-#define IO_NODIRECT    0x10000         /* don't use direct synchronous writes if IO_NOCACHE is specified */
-
+#define IO_NODIRECT     0x10000                /* don't use direct synchronous writes if IO_NOCACHE is specified */
+#define IO_ENCRYPTED   0x20000         /* Retrieve encrypted blocks from the filesystem */
+#define IO_RETURN_ON_THROTTLE  0x40000
+#define IO_SINGLE_WRITER       0x80000
+#define IO_SYSCALL_DISPATCH            0x100000        /* I/O origin is file table syscall */
 
 /*
  * Component Name: this structure describes the pathname
@@ -466,7 +469,7 @@ struct vnode_trigger_param {
  * Note that this structure may be extended, but existing fields must not move.
  */
 
-#define VATTR_INIT(v)                  do {(v)->va_supported = (v)->va_active = 0ll; (v)->va_vaflags = 0;} while(0)
+#define VATTR_INIT(v)                  do {(v)->va_supported = (v)->va_active = 0ll; (v)->va_vaflags = 0; } while(0)
 #define VATTR_SET_ACTIVE(v, a)         ((v)->va_active |= VNODE_ATTR_ ## a)
 #define VATTR_SET_SUPPORTED(v, a)      ((v)->va_supported |= VNODE_ATTR_ ## a)
 #define VATTR_IS_SUPPORTED(v, a)       ((v)->va_supported & VNODE_ATTR_ ## a)
@@ -517,6 +520,8 @@ struct vnode_trigger_param {
 #define VNODE_ATTR_va_nchildren                (1LL<<28)       /* 10000000 */
 #define VNODE_ATTR_va_dirlinkcount     (1LL<<29)       /* 20000000 */
 #define VNODE_ATTR_va_addedtime                (1LL<<30)               /* 40000000 */
+#define VNODE_ATTR_va_dataprotect_class                (1LL<<31)               /* 80000000 */
+#define VNODE_ATTR_va_dataprotect_flags                (1LL<<32)               /* 100000000 */
 
 #define VNODE_ATTR_BIT(n)      (VNODE_ATTR_ ## n)
 /*
@@ -537,8 +542,8 @@ struct vnode_trigger_param {
                                VNODE_ATTR_BIT(va_name) |               \
                                VNODE_ATTR_BIT(va_type) |               \
                                VNODE_ATTR_BIT(va_nchildren) |          \
-                               VNODE_ATTR_BIT(va_dirlinkcount)|                \
-                VNODE_ATTR_BIT(va_addedtime)) 
+                               VNODE_ATTR_BIT(va_dirlinkcount) |       \
+                               VNODE_ATTR_BIT(va_addedtime)) 
 /*
  * Attributes that can be applied to a new file object.
  */
@@ -554,7 +559,9 @@ struct vnode_trigger_param {
                                VNODE_ATTR_BIT(va_encoding) |           \
                                VNODE_ATTR_BIT(va_type) |               \
                                VNODE_ATTR_BIT(va_uuuid) |              \
-                               VNODE_ATTR_BIT(va_guuid))
+                               VNODE_ATTR_BIT(va_guuid) |              \
+                               VNODE_ATTR_BIT(va_dataprotect_class) |  \
+                               VNODE_ATTR_BIT(va_dataprotect_flags))
 
 
 struct vnode_attr {
@@ -617,11 +624,21 @@ struct vnode_attr {
 #else
        void *          va_reserved1;
 #endif /* BSD_KERNEL_PRIVATE */
-    struct timespec va_addedtime;      /* timestamp when item was added to parent directory */
-
+       struct timespec va_addedtime;   /* timestamp when item was added to parent directory */
                
+       /* Data Protection fields */
+       uint32_t va_dataprotect_class;  /* class specified for this file if it didn't exist */
+       uint32_t va_dataprotect_flags;  /* flags from NP open(2) to the filesystem */
 };
 
+#ifdef BSD_KERNEL_PRIVATE
+/* 
+ * Flags for va_dataprotect_flags
+ */
+#define VA_DP_RAWENCRYPTED 0x0001
+
+#endif
+
 /*
  * Flags for va_vaflags.
  */
@@ -666,14 +683,15 @@ extern int                vttoif_tab[];
 
 #define        REVOKEALL       0x0001          /* vnop_revoke: revoke all aliases */
 
-/* VNOP_REMOVE: do not delete busy files (Carbon remove file semantics) */
-#define VNODE_REMOVE_NODELETEBUSY  0x0001  
+/* VNOP_REMOVE/unlink flags: */
+#define VNODE_REMOVE_NODELETEBUSY                      0x0001 /* Do not delete busy files (Carbon) */
+#define VNODE_REMOVE_SKIP_NAMESPACE_EVENT      0x0002 /* Do not upcall to userland handlers */
 
 /* VNOP_READDIR flags: */
 #define VNODE_READDIR_EXTENDED    0x0001   /* use extended directory entries */
 #define VNODE_READDIR_REQSEEKOFF  0x0002   /* requires seek offset (cookies) */
 #define VNODE_READDIR_SEEKOFF32   0x0004   /* seek offset values should fit in 32 bits */
-
+#define VNODE_READDIR_NAMEMAX     0x0008   /* For extended readdir, try to limit names to NAME_MAX bytes */
 
 #define        NULLVP  ((struct vnode *)NULL)
 
@@ -1835,6 +1853,14 @@ vnode_t  vnode_getparent(vnode_t vp);
  @result 0 to indicate that a vnode can be opened, or an error that should be passed up to VFS.
  */
 int vnode_lookup_continue_needed(vnode_t vp, struct componentname *cnp);
+
+/*!
+ @function vnode_istty
+ @abstract Determine if the given vnode represents a tty device.
+ @param vp Vnode to examine.
+ @result Non-zero to indicate that the vnode represents a tty device. Zero otherwise.
+ */
+int vnode_istty(vnode_t vp);
 #endif /* KERNEL_PRIVATE */
 
 #ifdef BSD_KERNEL_PRIVATE
@@ -1864,7 +1890,6 @@ int       vnode_makeimode(int, int);
 enum vtype     vnode_iftovt(int);
 int    vnode_vttoif(enum vtype);
 int    vnode_isshadow(vnode_t);
-int    vnode_istty(vnode_t vp);
 /*
  * Indicate that a file has multiple hard links.  VFS will always call
  * VNOP_LOOKUP on this vnode.  Volfs will always ask for it's parent