X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/6601e61aa18bf4f09af135ff61fc7f4771d23b06..813fb2f63a553c957e917ede5f119b021d6ce391:/bsd/sys/ubc.h?ds=sidebyside diff --git a/bsd/sys/ubc.h b/bsd/sys/ubc.h index 999cfb054..278c84889 100644 --- a/bsd/sys/ubc.h +++ b/bsd/sys/ubc.h @@ -1,23 +1,29 @@ /* - * Copyright (c) 1999-2004 Apple Computer, Inc. All rights reserved. + * Copyright (c) 1999-2007 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * 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 + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * 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. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * 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, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE 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_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Header file for Unified Buffer Cache. @@ -32,9 +38,13 @@ #include #include #include +#include +#ifdef KERNEL_PRIVATE +#include +#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 */ @@ -48,38 +58,101 @@ daddr64_t ubc_offtoblk(struct vnode *, off_t); off_t ubc_getsize(struct vnode *); int ubc_setsize(struct vnode *, off_t); -struct ucred *ubc_getcred(struct vnode *); -int ubc_setcred(struct vnode *, struct proc *); +#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_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 *); + +#ifdef KERNEL_PRIVATE +/* This API continues to exist only until is resolved */ +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); 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_pageout(vnode_t, upl_t, vm_offset_t, off_t, int, off_t, int); -int cluster_pagein(vnode_t, upl_t, vm_offset_t, off_t, int, 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_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_bp(buf_t); -void cluster_zero(upl_t, vm_offset_t, int, buf_t); +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 *); + +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); + +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, long, upl_t *, upl_page_info_t **, int); -int ubc_upl_map(upl_t, upl_offset_t *); +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); +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); + +errno_t mach_to_bsd_errno(kern_return_t mach_err); + +#ifdef 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