xnu-4903.270.47.tar.gz

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

diff --git a/bsd/sys/ubc.h b/bsd/sys/ubc.h
index a26ba1caa03526ab30e6222dd27aea10cc953f22..bc91fde31e9d52969bccc1cf6961892d4a5ded67 100644 (file)
--- a/bsd/sys/ubc.h
+++ b/bsd/sys/ubc.h
@@ -2,7 +2,7 @@
  * Copyright (c) 1999-2007 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * Copyright (c) 1999-2007 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

- * 
+ *

  * 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
  * 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


@@ -11,10 +11,10 @@
  * 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.
  * 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.

- * 
+ *

  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * 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,
  * 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,


@@ -22,99 +22,148 @@
  * 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.
  * 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_OSREFERENCE_LICENSE_HEADER_END@
  */
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */

-/* 
+/*

  *     Header file for Unified Buffer Cache.
  *
  *     Header file for Unified Buffer Cache.
  *

- */ 
+ */

 
 

-#ifndef        _SYS_UBC_H_
-#define        _SYS_UBC_H_
+#ifndef _SYS_UBC_H_
+#define _SYS_UBC_H_

 
 #include <sys/appleapiopts.h>
 #include <sys/cdefs.h>
 #include <sys/kernel_types.h>
 #include <kern/locks.h>
 
 #include <sys/appleapiopts.h>
 #include <sys/cdefs.h>
 #include <sys/kernel_types.h>
 #include <kern/locks.h>

+#include <mach/machine.h>

 #include <mach/memory_object_types.h>
 #include <mach/memory_object_types.h>

+#include <sys/ucred.h>

 
 

+#ifdef KERNEL_PRIVATE
+#include <sys/imgact.h>
+#endif // KERNEL_PRIVATE

 
 

-/* defns for ubc_sync_range() and ubc_msync */
+/* defns for ubc_msync() and ubc_msync */

 
 

-#define        UBC_PUSHDIRTY   0x01    /* clean any dirty pages in the specified range to the backing store */
-#define        UBC_PUSHALL     0x02    /* push both dirty and precious pages to the backing store */
-#define        UBC_INVALIDATE  0x04    /* invalidate pages in the specified range... may be used with UBC_PUSHDIRTY/ALL */
-#define        UBC_SYNC        0x08    /* wait for I/Os generated by UBC_PUSHDIRTY to complete */
+#define UBC_PUSHDIRTY   0x01    /* clean any dirty pages in the specified range to the backing store */
+#define UBC_PUSHALL     0x02    /* push both dirty and precious pages to the backing store */
+#define UBC_INVALIDATE  0x04    /* invalidate pages in the specified range... may be used with UBC_PUSHDIRTY/ALL */
+#define UBC_SYNC        0x08    /* wait for I/Os generated by UBC_PUSHDIRTY to complete */

 
 __BEGIN_DECLS
 
 
 __BEGIN_DECLS
 

-off_t          ubc_blktooff(struct vnode *, daddr64_t);
-daddr64_t      ubc_offtoblk(struct vnode *, off_t);
-off_t  ubc_getsize(struct vnode *);
-int    ubc_setsize(struct vnode *, off_t);
+off_t           ubc_blktooff(struct vnode *, daddr64_t);
+daddr64_t       ubc_offtoblk(struct vnode *, off_t);
+off_t   ubc_getsize(struct vnode *);
+int     ubc_setsize(struct vnode *, off_t);
+
+#ifdef KERNEL_PRIVATE
+
+enum {
+       UBC_SETSIZE_NO_FS_REENTRY = 1
+};
+typedef uint32_t ubc_setsize_opts_t;
+
+errno_t ubc_setsize_ex(vnode_t vp, off_t nsize, ubc_setsize_opts_t opts);
+
+#endif // KERNEL_PRIVATE

 
 kauth_cred_t ubc_getcred(struct vnode *);
 struct thread;
 
 kauth_cred_t ubc_getcred(struct vnode *);
 struct thread;

-int    ubc_setthreadcred(struct vnode *, struct proc *, struct thread *);
+int     ubc_setthreadcred(struct vnode *, struct proc *, struct thread *);

 
 

-int     ubc_sync_range(vnode_t, off_t, off_t, int);

 errno_t ubc_msync(vnode_t, off_t, off_t, off_t *, int);
 errno_t ubc_msync(vnode_t, off_t, off_t, off_t *, int);

-int    ubc_pages_resident(vnode_t);
-int    ubc_page_op(vnode_t, off_t, int, ppnum_t *, int *);
-int    ubc_range_op(vnode_t, off_t, off_t, int, int *);
+int     ubc_pages_resident(vnode_t);
+int     ubc_page_op(vnode_t, off_t, int, ppnum_t *, int *);
+int     ubc_range_op(vnode_t, off_t, off_t, int, int *);

 
 #ifdef KERNEL_PRIVATE
 /* This API continues to exist only until <rdar://4714366> is resolved */
 
 #ifdef KERNEL_PRIVATE
 /* This API continues to exist only until <rdar://4714366> is resolved */

-int    ubc_setcred(struct vnode *, struct proc *) __deprecated;
+int     ubc_setcred(struct vnode *, struct proc *) __deprecated;

 /* code signing */
 struct cs_blob;
 struct cs_blob *ubc_cs_blob_get(vnode_t, cpu_type_t, off_t);
 /* code signing */
 struct cs_blob;
 struct cs_blob *ubc_cs_blob_get(vnode_t, cpu_type_t, off_t);

+
+/* apis to handle generation count for cs blob */
+void cs_blob_reset_cache(void);
+int ubc_cs_blob_revalidate(vnode_t, struct cs_blob *, struct image_params *, int);
+int ubc_cs_generation_check(vnode_t);
+
+int cs_entitlements_blob_get(proc_t, void **, size_t *);
+int cs_blob_get(proc_t, void **, size_t *);
+const char *cs_identity_get(proc_t);
+

 #endif
 
 /* cluster IO routines */
 #endif
 
 /* cluster IO routines */

-int    advisory_read(vnode_t, off_t, off_t, int);
-int    advisory_read_ext(vnode_t, off_t, off_t, int, int (*)(buf_t, void *), void *, int);
+void    cluster_update_state(vnode_t, vm_object_offset_t, vm_object_offset_t, boolean_t);
+
+int     advisory_read(vnode_t, off_t, off_t, int);
+int     advisory_read_ext(vnode_t, off_t, off_t, int, int (*)(buf_t, void *), void *, int);

 
 

-int    cluster_read(vnode_t, struct uio *, off_t, int);
-int    cluster_read_ext(vnode_t, struct uio *, off_t, int, int (*)(buf_t, void *), void *);
+int     cluster_read(vnode_t, struct uio *, off_t, int);
+int     cluster_read_ext(vnode_t, struct uio *, off_t, int, int (*)(buf_t, void *), void *);

 
 

-int    cluster_write(vnode_t, struct uio *, off_t, off_t, off_t, off_t, int);
-int    cluster_write_ext(vnode_t, struct uio *, off_t, off_t, off_t, off_t, int, int (*)(buf_t, void *), void *);
+int     cluster_write(vnode_t, struct uio *, off_t, off_t, off_t, off_t, int);
+int     cluster_write_ext(vnode_t, struct uio *, off_t, off_t, off_t, off_t, int, int (*)(buf_t, void *), void *);

 
 

-int    cluster_pageout(vnode_t, upl_t, upl_offset_t, off_t, int, off_t, int);
-int    cluster_pageout_ext(vnode_t, upl_t, upl_offset_t, off_t, int, off_t, int, int (*)(buf_t, void *), void *);
+int     cluster_pageout(vnode_t, upl_t, upl_offset_t, off_t, int, off_t, int);
+int     cluster_pageout_ext(vnode_t, upl_t, upl_offset_t, off_t, int, off_t, int, int (*)(buf_t, void *), void *);

 
 

-int    cluster_pagein(vnode_t, upl_t, upl_offset_t, off_t, int, off_t, int);
-int    cluster_pagein_ext(vnode_t, upl_t, upl_offset_t, off_t, int, off_t, int, int (*)(buf_t, void *), void *);
+int     cluster_pagein(vnode_t, upl_t, upl_offset_t, off_t, int, off_t, int);
+int     cluster_pagein_ext(vnode_t, upl_t, upl_offset_t, off_t, int, off_t, int, int (*)(buf_t, void *), void *);

 
 

-int    cluster_push(vnode_t, int);
-int    cluster_push_ext(vnode_t, int, int (*)(buf_t, void *), void *);
+int     cluster_push(vnode_t, int);
+int     cluster_push_ext(vnode_t, int, int (*)(buf_t, void *), void *);
+int     cluster_push_err(vnode_t, int, int (*)(buf_t, void *), void *, int *);

 
 

-int    cluster_bp(buf_t);
-int    cluster_bp_ext(buf_t, int (*)(buf_t, void *), void *);
+int     cluster_bp(buf_t);
+int     cluster_bp_ext(buf_t, int (*)(buf_t, void *), void *);

 
 

-void   cluster_zero(upl_t, upl_offset_t, int, buf_t);
+void    cluster_zero(upl_t, upl_offset_t, int, buf_t);

 
 

-int    cluster_copy_upl_data(uio_t, upl_t, int, int *);
-int    cluster_copy_ubc_data(vnode_t, uio_t, int *, int);
+int     cluster_copy_upl_data(uio_t, upl_t, int, int *);
+int     cluster_copy_ubc_data(vnode_t, uio_t, int *, int);

 
 

+typedef struct cl_direct_read_lock cl_direct_read_lock_t;
+cl_direct_read_lock_t *cluster_lock_direct_read(vnode_t vp, lck_rw_type_t exclusive);
+void cluster_unlock_direct_read(cl_direct_read_lock_t *lck);

 
 /* UPL routines */
 
 /* UPL routines */

-int    ubc_create_upl(vnode_t, off_t, int, upl_t *, upl_page_info_t **, int);
-int    ubc_upl_map(upl_t, vm_offset_t *);
-int    ubc_upl_unmap(upl_t);
-int    ubc_upl_commit(upl_t);
-int    ubc_upl_commit_range(upl_t, upl_offset_t, upl_size_t, int);
-int    ubc_upl_abort(upl_t, int);
-int    ubc_upl_abort_range(upl_t, upl_offset_t, upl_size_t, int);
+#ifndef XNU_KERNEL_PRIVATE
+int     ubc_create_upl(vnode_t, off_t, int, upl_t *, upl_page_info_t **, int);
+#endif /* XNU_KERNEL_PRIVATE */
+int     ubc_upl_map(upl_t, vm_offset_t *);
+int     ubc_upl_unmap(upl_t);
+int     ubc_upl_commit(upl_t);
+int     ubc_upl_commit_range(upl_t, upl_offset_t, upl_size_t, int);
+int     ubc_upl_abort(upl_t, int);
+int     ubc_upl_abort_range(upl_t, upl_offset_t, upl_size_t, int);
+void    ubc_upl_range_needed(upl_t, int, int);

 
 upl_page_info_t *ubc_upl_pageinfo(upl_t);
 upl_size_t ubc_upl_maxbufsize(void);
 
 
 upl_page_info_t *ubc_upl_pageinfo(upl_t);
 upl_size_t ubc_upl_maxbufsize(void);
 

-int    is_file_clean(vnode_t, off_t);
+int     is_file_clean(vnode_t, off_t);

 
 

-__END_DECLS
+errno_t mach_to_bsd_errno(kern_return_t mach_err);
+
+#ifdef KERNEL_PRIVATE

 
 

-#endif /* _SYS_UBC_H_ */
+int     ubc_create_upl_external(vnode_t, off_t, int, upl_t *, upl_page_info_t **, int);
+#ifdef  XNU_KERNEL_PRIVATE
+int     ubc_create_upl_kernel(vnode_t, off_t, int, upl_t *, upl_page_info_t **, int, vm_tag_t);
+#endif  /* XNU_KERNEL_PRIVATE */
+
+__attribute__((pure)) boolean_t ubc_is_mapped(const struct vnode *, boolean_t *writable);
+__attribute__((pure)) boolean_t ubc_is_mapped_writable(const struct vnode *);
+
+uint32_t cluster_max_io_size(mount_t, int);
+
+#endif
+
+__END_DECLS

 
 

+#endif  /* _SYS_UBC_H_ */