/* * Copyright (c) 2000-2002 Apple Computer, 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 * 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. * * 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, 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@ */ /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ /* * Copyright (c) 1982, 1986, 1989, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)ffs_vnops.c 8.15 (Berkeley) 5/14/95 */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if REV_ENDIAN_FS #include #endif /* REV_ENDIAN_FS */ #define VOPFUNC int (*)(void *) /* Global vfs data structures for ufs. */ int (**ffs_vnodeop_p)(void *); struct vnodeopv_entry_desc ffs_vnodeop_entries[] = { { &vnop_default_desc, (VOPFUNC)vn_default_error }, { &vnop_lookup_desc, (VOPFUNC)ufs_lookup }, /* lookup */ { &vnop_create_desc, (VOPFUNC)ufs_create }, /* create */ { &vnop_whiteout_desc, (VOPFUNC)ufs_whiteout }, /* whiteout */ { &vnop_mknod_desc, (VOPFUNC)ufs_mknod }, /* mknod */ { &vnop_open_desc, (VOPFUNC)ufs_open }, /* open */ { &vnop_close_desc, (VOPFUNC)ufs_close }, /* close */ { &vnop_getattr_desc, (VOPFUNC)ufs_getattr }, /* getattr */ { &vnop_setattr_desc, (VOPFUNC)ufs_setattr }, /* setattr */ { &vnop_read_desc, (VOPFUNC)ffs_read }, /* read */ { &vnop_write_desc, (VOPFUNC)ffs_write }, /* write */ { &vnop_ioctl_desc, (VOPFUNC)ufs_ioctl }, /* ioctl */ { &vnop_select_desc, (VOPFUNC)ufs_select }, /* select */ { &vnop_revoke_desc, (VOPFUNC)ufs_revoke }, /* revoke */ { &vnop_mmap_desc, (VOPFUNC)ufs_mmap }, /* mmap */ { &vnop_fsync_desc, (VOPFUNC)ffs_fsync }, /* fsync */ { &vnop_remove_desc, (VOPFUNC)ufs_remove }, /* remove */ { &vnop_link_desc, (VOPFUNC)ufs_link }, /* link */ { &vnop_rename_desc, (VOPFUNC)ufs_rename }, /* rename */ { &vnop_mkdir_desc, (VOPFUNC)ufs_mkdir }, /* mkdir */ { &vnop_rmdir_desc, (VOPFUNC)ufs_rmdir }, /* rmdir */ { &vnop_symlink_desc, (VOPFUNC)ufs_symlink }, /* symlink */ { &vnop_readdir_desc, (VOPFUNC)ufs_readdir }, /* readdir */ { &vnop_readlink_desc, (VOPFUNC)ufs_readlink }, /* readlink */ { &vnop_inactive_desc, (VOPFUNC)ufs_inactive }, /* inactive */ { &vnop_reclaim_desc, (VOPFUNC)ffs_reclaim }, /* reclaim */ { &vnop_strategy_desc, (VOPFUNC)ufs_strategy }, /* strategy */ { &vnop_pathconf_desc, (VOPFUNC)ufs_pathconf }, /* pathconf */ { &vnop_advlock_desc, (VOPFUNC)err_advlock }, /* advlock */ { &vnop_bwrite_desc, (VOPFUNC)vn_bwrite }, { &vnop_pagein_desc, (VOPFUNC)ffs_pagein }, /* Pagein */ { &vnop_pageout_desc, (VOPFUNC)ffs_pageout }, /* Pageout */ { &vnop_copyfile_desc, (VOPFUNC)err_copyfile }, /* Copy File */ { &vnop_blktooff_desc, (VOPFUNC)ffs_blktooff }, /* blktooff */ { &vnop_offtoblk_desc, (VOPFUNC)ffs_offtoblk }, /* offtoblk */ { &vnop_blockmap_desc, (VOPFUNC)ufs_blockmap }, /* blockmap */ { &vnop_kqfilt_add_desc, (VOPFUNC)ufs_kqfilt_add }, /* kqfilt_add */ { (struct vnodeop_desc*)NULL, (int(*)())NULL } }; struct vnodeopv_desc ffs_vnodeop_opv_desc = { &ffs_vnodeop_p, ffs_vnodeop_entries }; int (**ffs_specop_p)(void *); struct vnodeopv_entry_desc ffs_specop_entries[] = { { &vnop_default_desc, (VOPFUNC)vn_default_error }, { &vnop_lookup_desc, (VOPFUNC)spec_lookup }, /* lookup */ { &vnop_create_desc, (VOPFUNC)spec_create }, /* create */ { &vnop_mknod_desc, (VOPFUNC)spec_mknod }, /* mknod */ { &vnop_open_desc, (VOPFUNC)spec_open }, /* open */ { &vnop_close_desc, (VOPFUNC)ufsspec_close }, /* close */ { &vnop_getattr_desc, (VOPFUNC)ufs_getattr }, /* getattr */ { &vnop_setattr_desc, (VOPFUNC)ufs_setattr }, /* setattr */ { &vnop_read_desc, (VOPFUNC)ufsspec_read }, /* read */ { &vnop_write_desc, (VOPFUNC)ufsspec_write }, /* write */ { &vnop_ioctl_desc, (VOPFUNC)spec_ioctl }, /* ioctl */ { &vnop_select_desc, (VOPFUNC)spec_select }, /* select */ { &vnop_revoke_desc, (VOPFUNC)spec_revoke }, /* revoke */ { &vnop_mmap_desc, (VOPFUNC)spec_mmap }, /* mmap */ { &vnop_fsync_desc, (VOPFUNC)ffs_fsync }, /* fsync */ { &vnop_remove_desc, (VOPFUNC)spec_remove }, /* remove */ { &vnop_link_desc, (VOPFUNC)spec_link }, /* link */ { &vnop_rename_desc, (VOPFUNC)spec_rename }, /* rename */ { &vnop_mkdir_desc, (VOPFUNC)spec_mkdir }, /* mkdir */ { &vnop_rmdir_desc, (VOPFUNC)spec_rmdir }, /* rmdir */ { &vnop_symlink_desc, (VOPFUNC)spec_symlink }, /* symlink */ { &vnop_readdir_desc, (VOPFUNC)spec_readdir }, /* readdir */ { &vnop_readlink_desc, (VOPFUNC)spec_readlink }, /* readlink */ { &vnop_inactive_desc, (VOPFUNC)ufs_inactive }, /* inactive */ { &vnop_reclaim_desc, (VOPFUNC)ffs_reclaim }, /* reclaim */ { &vnop_strategy_desc, (VOPFUNC)spec_strategy }, /* strategy */ { &vnop_pathconf_desc, (VOPFUNC)spec_pathconf }, /* pathconf */ { &vnop_advlock_desc, (VOPFUNC)err_advlock }, /* advlock */ { &vnop_bwrite_desc, (VOPFUNC)vn_bwrite }, { &vnop_pagein_desc, (VOPFUNC)ffs_pagein }, /* Pagein */ { &vnop_pageout_desc, (VOPFUNC)ffs_pageout }, /* Pageout */ { &vnop_copyfile_desc, (VOPFUNC)err_copyfile }, /* Copy File */ { &vnop_blktooff_desc, (VOPFUNC)ffs_blktooff }, /* blktooff */ { &vnop_offtoblk_desc, (VOPFUNC)ffs_offtoblk }, /* offtoblk */ { &vnop_blockmap_desc, (VOPFUNC)spec_blockmap }, /* blockmap */ { (struct vnodeop_desc*)NULL, (int(*)())NULL } }; struct vnodeopv_desc ffs_specop_opv_desc = { &ffs_specop_p, ffs_specop_entries }; #if FIFO int (**ffs_fifoop_p)(void *); struct vnodeopv_entry_desc ffs_fifoop_entries[] = { { &vnop_default_desc, (VOPFUNC)vn_default_error }, { &vnop_lookup_desc, (VOPFUNC)fifo_lookup }, /* lookup */ { &vnop_create_desc, (VOPFUNC)fifo_create }, /* create */ { &vnop_mknod_desc, (VOPFUNC)fifo_mknod }, /* mknod */ { &vnop_open_desc, (VOPFUNC)fifo_open }, /* open */ { &vnop_close_desc, (VOPFUNC)ufsfifo_close }, /* close */ { &vnop_getattr_desc, (VOPFUNC)ufs_getattr }, /* getattr */ { &vnop_setattr_desc, (VOPFUNC)ufs_setattr }, /* setattr */ { &vnop_read_desc, (VOPFUNC)ufsfifo_read }, /* read */ { &vnop_write_desc, (VOPFUNC)ufsfifo_write }, /* write */ { &vnop_ioctl_desc, (VOPFUNC)fifo_ioctl }, /* ioctl */ { &vnop_select_desc, (VOPFUNC)fifo_select }, /* select */ { &vnop_revoke_desc, (VOPFUNC)fifo_revoke }, /* revoke */ { &vnop_mmap_desc, (VOPFUNC)fifo_mmap }, /* mmap */ { &vnop_fsync_desc, (VOPFUNC)ffs_fsync }, /* fsync */ { &vnop_remove_desc, (VOPFUNC)fifo_remove }, /* remove */ { &vnop_link_desc, (VOPFUNC)fifo_link }, /* link */ { &vnop_rename_desc, (VOPFUNC)fifo_rename }, /* rename */ { &vnop_mkdir_desc, (VOPFUNC)fifo_mkdir }, /* mkdir */ { &vnop_rmdir_desc, (VOPFUNC)fifo_rmdir }, /* rmdir */ { &vnop_symlink_desc, (VOPFUNC)fifo_symlink }, /* symlink */ { &vnop_readdir_desc, (VOPFUNC)fifo_readdir }, /* readdir */ { &vnop_readlink_desc, (VOPFUNC)fifo_readlink }, /* readlink */ { &vnop_inactive_desc, (VOPFUNC)ufs_inactive }, /* inactive */ { &vnop_reclaim_desc, (VOPFUNC)ffs_reclaim }, /* reclaim */ { &vnop_strategy_desc, (VOPFUNC)fifo_strategy }, /* strategy */ { &vnop_pathconf_desc, (VOPFUNC)fifo_pathconf }, /* pathconf */ { &vnop_advlock_desc, (VOPFUNC)err_advlock }, /* advlock */ { &vnop_bwrite_desc, (VOPFUNC)vn_bwrite }, { &vnop_pagein_desc, (VOPFUNC)ffs_pagein }, /* Pagein */ { &vnop_pageout_desc, (VOPFUNC)ffs_pageout }, /* Pageout */ { &vnop_copyfile_desc, (VOPFUNC)err_copyfile }, /* Copy File */ { &vnop_blktooff_desc, (VOPFUNC)ffs_blktooff }, /* blktooff */ { &vnop_offtoblk_desc, (VOPFUNC)ffs_offtoblk }, /* offtoblk */ { &vnop_blockmap_desc, (VOPFUNC)ufs_blockmap }, /* blockmap */ { &vnop_kqfilt_add_desc, (VOPFUNC)ufsfifo_kqfilt_add }, /* kqfilt_add */ { (struct vnodeop_desc*)NULL, (int(*)())NULL } }; struct vnodeopv_desc ffs_fifoop_opv_desc = { &ffs_fifoop_p, ffs_fifoop_entries }; #endif /* FIFO */ /* * Enabling cluster read/write operations. */ int doclusterread = 0; int doclusterwrite = 0; #include /* * Synch an open file. */ /* ARGSUSED */ int ffs_fsync(ap) struct vnop_fsync_args /* { struct vnode *a_vp; int a_waitfor; vfs_context_t a_context; } */ *ap; { return(ffs_fsync_internal(ap->a_vp, ap->a_waitfor)); } int ffs_fsync_internal(vnode_t vp, int waitfor) { struct timeval tv; int wait = (waitfor == MNT_WAIT); /* * Write out any clusters. */ cluster_push(vp, 0); /* * Flush all dirty buffers associated with a vnode. */ buf_flushdirtyblks(vp, wait, 0, "ffs_fsync"); microtime(&tv); return (ffs_update(vp, &tv, &tv, wait)); } /* * Reclaim an inode so that it can be used for other purposes. */ int ffs_reclaim(ap) struct vnop_reclaim_args /* { struct vnode *a_vp; vfs_context_t a_context; } */ *ap; { register struct vnode *vp = ap->a_vp; int error; if ( (error = ufs_reclaim(vp, vfs_context_proc(ap->a_context))) ) return (error); FREE_ZONE(vnode_fsnode(vp), sizeof (struct inode), M_FFSNODE); vnode_clearfsnode(vp); return (0); } /* Blktooff converts a logical block number to a file offset */ int ffs_blktooff(ap) struct vnop_blktooff_args /* { struct vnode *a_vp; daddr64_t a_lblkno; off_t *a_offset; } */ *ap; { register struct inode *ip; register FS *fs; if (ap->a_vp == NULL) return (EINVAL); fs = VTOI(ap->a_vp)->I_FS; *ap->a_offset = (off_t)lblktosize(fs, ap->a_lblkno); return (0); } /* Blktooff converts a logical block number to a file offset */ int ffs_offtoblk(ap) struct vnop_offtoblk_args /* { struct vnode *a_vp; off_t a_offset; daddr64_t *a_lblkno; } */ *ap; { register FS *fs; if (ap->a_vp == NULL) return (EINVAL); fs = VTOI(ap->a_vp)->I_FS; *ap->a_lblkno = (daddr64_t)lblkno(fs, ap->a_offset); return (0); }