#define IO_SYSCALL_DISPATCH 0x100000 /* I/O was originated from a file table syscall */
#define IO_SWAP_DISPATCH 0x200000 /* I/O was originated from the swap layer */
#define IO_SKIP_ENCRYPTION 0x400000 /* Skips en(de)cryption on the IO. Must be initiated from kernel */
+#define IO_EVTONLY 0x800000 /* the i/o is being done on an fd that's marked O_EVTONLY */
/*
* Component Name: this structure describes the pathname
#define VNCREATE_FLAVOR 0
#define VCREATESIZE sizeof(struct vnode_fsparam)
+#ifdef KERNEL_PRIVATE
+/*
+ * For use with SPI to create trigger vnodes.
+ */
+struct vnode_trigger_param;
+#define VNCREATE_TRIGGER (('T' << 8) + ('V'))
+#define VNCREATE_TRIGGER_SIZE sizeof(struct vnode_trigger_param)
+#endif /* KERNEL_PRIVATE */
#ifdef KERNEL_PRIVATE
uint32_t vnt_flags; /* optional flags (see below) */
};
-#define VNCREATE_TRIGGER (('T' << 8) + ('V'))
-#define VNCREATE_TRIGGER_SIZE sizeof(struct vnode_trigger_param)
-
/*
* vnode trigger flags (vnt_flags)
*
/*
* Flags for va_dataprotect_flags
*/
-#define VA_DP_RAWENCRYPTED 0x0001
+#define VA_DP_RAWENCRYPTED 0x0001
+#define VA_DP_RAWUNENCRYPTED 0x0002
#endif
/* VNOP_REMOVE/unlink flags */
#define VNODE_REMOVE_NODELETEBUSY 0x0001 /* Don't delete busy files (Carbon) */
#define VNODE_REMOVE_SKIP_NAMESPACE_EVENT 0x0002 /* Do not upcall to userland handlers */
+#define VNODE_REMOVE_NO_AUDIT_PATH 0x0004 /* Do not audit the path */
/* VNOP_READDIR flags: */
#define VNODE_READDIR_EXTENDED 0x0001 /* use extended directory entries */
*/
errno_t vnode_create(uint32_t, uint32_t, void *, vnode_t *);
+#if KERNEL_PRIVATE
+/*!
+ @function vnode_create_empty
+ @abstract Create an empty, uninitialized vnode.
+ @discussion Returns with an iocount held on the vnode which must eventually be
+ dropped with vnode_put(). The next operation performed on the vnode must be
+ vnode_initialize (or vnode_put if the vnode is not needed anymore).
+ This interface is provided as a mechanism to pre-flight obtaining a vnode for
+ certain filesystem operations which may need to get a vnode without filesystem
+ locks held. It is imperative that nothing be done with the vnode till the
+ succeeding vnode_initialize (or vnode_put as the case may be) call.
+ @param vpp Pointer to a vnode pointer, to be filled in with newly created vnode.
+ @return 0 for success, error code otherwise.
+ */
+errno_t vnode_create_empty(vnode_t *);
+
+/*!
+ @function vnode_initialize
+ @abstract Initialize a vnode obtained by vnode_create_empty
+ @discussion Does not drop iocount held on the vnode which must eventually be
+ dropped with vnode_put(). In case of an error however, the vnode's iocount is
+ dropped and the vnode must not be referenced again by the caller.
+ @param flavor Should be VNCREATE_FLAVOR.
+ @param size Size of the struct vnode_fsparam in "data".
+ @param data Pointer to a struct vnode_fsparam containing initialization information.
+ @param vpp Pointer to a vnode pointer, to be filled in with newly created vnode.
+ @return 0 for success, error code otherwise.
+ */
+errno_t vnode_initialize(uint32_t, uint32_t, void *, vnode_t *);
+#endif /* KERNEL_PRIVATE */
+
/*!
@function vnode_addfsref
@abstract Mark a vnode as being stored in a filesystem hash.
*/
void vnode_clearnoreadahead(vnode_t);
+/*!
+ @function vnode_isfastdevicecandidate
+ @abstract Check if a vnode is a candidate to store on the fast device of a composite disk system
+ @param vp The vnode which you want to test.
+ @return Nonzero if the vnode is marked as a fast-device candidate
+ @return void.
+ */
+int vnode_isfastdevicecandidate(vnode_t);
+
+/*!
+ @function vnode_setfastdevicecandidate
+ @abstract Mark a vnode as a candidate to store on the fast device of a composite disk system
+ @abstract If the vnode is a directory, all its children will inherit this bit.
+ @param vp The vnode which you want marked.
+ @return void.
+ */
+void vnode_setfastdevicecandidate(vnode_t);
+
+/*!
+ @function vnode_clearfastdevicecandidate
+ @abstract Clear the status of a vnode being a candidate to store on the fast device of a composite disk system.
+ @param vp The vnode whose flag to clear.
+ @return void.
+ */
+void vnode_clearfastdevicecandidate(vnode_t);
+
+/*!
+ @function vnode_isautocandidate
+ @abstract Check if a vnode was automatically selected to be fast-dev candidate (see vnode_setfastdevicecandidate)
+ @param vp The vnode which you want to test.
+ @return Nonzero if the vnode was automatically marked as a fast-device candidate
+ @return void.
+ */
+int vnode_isautocandidate(vnode_t);
+
+/*!
+ @function vnode_setfastdevicecandidate
+ @abstract Mark a vnode as an automatically selected candidate for storing on the fast device of a composite disk system
+ @abstract If the vnode is a directory, all its children will inherit this bit.
+ @param vp The vnode which you want marked.
+ @return void.
+ */
+void vnode_setautocandidate(vnode_t);
+
+/*!
+ @function vnode_clearautocandidate
+ @abstract Clear the status of a vnode being an automatic candidate (see above)
+ @param vp The vnode whose flag to clear.
+ @return void.
+ */
+void vnode_clearautocandidate(vnode_t);
+
/* left only for compat reasons as User code depends on this from getattrlist, for ex */
/*!
#endif /* BSD_KERNEL_PRIVATE */
-/*!
- @function vnode_notify
- @abstract Send a notification up to VFS.
- @param vp Vnode for which to provide notification.
- @param vap Attributes for that vnode, to be passed to fsevents.
- @discussion Filesystem determines which attributes to pass up using
- vfs_get_notify_attributes(&vap). The most specific events possible should be passed,
- e.g. VNODE_EVENT_FILE_CREATED on a directory rather than just VNODE_EVENT_WRITE, but
- a less specific event can be passed up if more specific information is not available.
- Will not reenter the filesystem.
- @return 0 for success, else an error code.
- */
-int vnode_notify(vnode_t, uint32_t, struct vnode_attr*);
-
/*!
@function vnode_ismonitored
@abstract Check whether a file has watchers that would make it useful to query a server
int vnode_isdyldsharedcache(vnode_t);
-/*!
- @function vfs_get_notify_attributes
- @abstract Determine what attributes are required to send up a notification with vnode_notify().
- @param vap Structure to initialize and activate required attributes on.
- @discussion Will not reenter the filesystem.
- @return 0 for success, nonzero for error (currently always succeeds).
- */
-int vfs_get_notify_attributes(struct vnode_attr *vap);
-
/*!
@function vn_getpath_fsenter
@abstract Attempt to get a vnode's path, willing to enter the filesystem.
*/
int vn_getpath(struct vnode *vp, char *pathbuf, int *len);
+/*!
+ @function vnode_notify
+ @abstract Send a notification up to VFS.
+ @param vp Vnode for which to provide notification.
+ @param vap Attributes for that vnode, to be passed to fsevents.
+ @discussion Filesystem determines which attributes to pass up using
+ vfs_get_notify_attributes(&vap). The most specific events possible should be passed,
+ e.g. VNODE_EVENT_FILE_CREATED on a directory rather than just VNODE_EVENT_WRITE, but
+ a less specific event can be passed up if more specific information is not available.
+ Will not reenter the filesystem.
+ @return 0 for success, else an error code.
+ */
+int vnode_notify(vnode_t, uint32_t, struct vnode_attr*);
+
+/*!
+ @function vfs_get_notify_attributes
+ @abstract Determine what attributes are required to send up a notification with vnode_notify().
+ @param vap Structure to initialize and activate required attributes on.
+ @discussion Will not reenter the filesystem.
+ @return 0 for success, nonzero for error (currently always succeeds).
+ */
+int vfs_get_notify_attributes(struct vnode_attr *vap);
+
/*
* Flags for the vnode_lookup and vnode_open
*/
#define VNODE_LOOKUP_NOFOLLOW 0x01
#define VNODE_LOOKUP_NOCROSSMOUNT 0x02
+#define VNODE_LOOKUP_CROSSMOUNTNOWAIT 0x04
/*!
@function vnode_lookup
@abstract Convert a path into a vnode.
@result Non-zero to indicate that the vnode represents a tty device. Zero otherwise.
*/
int vnode_istty(vnode_t vp);
+
+/*
+ * Get the context for the first kernel thread (private SPI)
+ */
+vfs_context_t vfs_context_kernel(void); /* get from 1st kernel thread */
#endif /* KERNEL_PRIVATE */
#ifdef BSD_KERNEL_PRIVATE
int check_mountedon(dev_t dev, enum vtype type, int *errorp);
int vn_getcdhash(struct vnode *vp, off_t offset, unsigned char *cdhash);
void vnode_reclaim(vnode_t);
-vfs_context_t vfs_context_kernel(void); /* get from 1st kernel thread */
int vfs_context_issuser(vfs_context_t);
vnode_t vfs_context_cwd(vfs_context_t);
vnode_t current_rootdir(void);
projects / apple / xnu.git / blobdiff