* 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
* 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.
- *
+ *
* 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,
* 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@
*/
-/*
+/*
* 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 <mach/machine.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
-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;
-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);
-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 */
-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);
+
+/* 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 */
-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 */
-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);
-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_ */
projects / apple / xnu.git / blobdiff