1/* $NetBSD: sysvbfs.c,v 1.19 2021/06/29 22:34:07 dholland Exp $ */ 2 3/*- 4 * Copyright (c) 2004 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> 33__KERNEL_RCSID(0, "$NetBSD: sysvbfs.c,v 1.19 2021/06/29 22:34:07 dholland Exp $"); 34 35#include <sys/resource.h> 36#include <sys/param.h> 37#include <sys/vnode.h> 38#include <sys/mount.h> 39#include <sys/module.h> 40#include <miscfs/genfs/genfs.h> 41#include <miscfs/genfs/genfs_node.h> 42#include <fs/sysvbfs/sysvbfs.h> 43 44MODULE(MODULE_CLASS_VFS, sysvbfs, NULL); 45 46/* External interfaces */ 47 48int (**sysvbfs_vnodeop_p)(void *); /* filled by getnewvnode (vnode.h) */ 49 50const struct vnodeopv_entry_desc sysvbfs_vnodeop_entries[] = { 51 { &vop_default_desc, vn_default_error }, 52 { &vop_parsepath_desc, genfs_parsepath }, /* parsepath */ 53 { &vop_lookup_desc, sysvbfs_lookup }, /* lookup */ 54 { &vop_create_desc, sysvbfs_create }, /* create */ 55 { &vop_mknod_desc, genfs_eopnotsupp }, /* mknod */ 56 { &vop_open_desc, sysvbfs_open }, /* open */ 57 { &vop_close_desc, sysvbfs_close }, /* close */ 58 { &vop_access_desc, sysvbfs_access }, /* access */ 59 { &vop_accessx_desc, genfs_accessx }, /* accessx */ 60 { &vop_getattr_desc, sysvbfs_getattr }, /* getattr */ 61 { &vop_setattr_desc, sysvbfs_setattr }, /* setattr */ 62 { &vop_read_desc, sysvbfs_read }, /* read */ 63 { &vop_write_desc, sysvbfs_write }, /* write */ 64 { &vop_fallocate_desc, genfs_eopnotsupp }, /* fallocate */ 65 { &vop_fdiscard_desc, genfs_eopnotsupp }, /* fdiscard */ 66 { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */ 67 { &vop_ioctl_desc, genfs_enoioctl }, /* ioctl */ 68 { &vop_poll_desc, genfs_poll }, /* poll */ 69 { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */ 70 { &vop_revoke_desc, genfs_revoke }, /* revoke */ 71 { &vop_mmap_desc, genfs_mmap }, /* mmap */ 72 { &vop_fsync_desc, sysvbfs_fsync }, /* fsync */ 73 { &vop_seek_desc, genfs_seek }, /* seek */ 74 { &vop_remove_desc, sysvbfs_remove }, /* remove */ 75 { &vop_link_desc, genfs_eopnotsupp }, /* link */ 76 { &vop_rename_desc, sysvbfs_rename }, /* rename */ 77 { &vop_mkdir_desc, genfs_eopnotsupp }, /* mkdir */ 78 { &vop_rmdir_desc, genfs_eopnotsupp }, /* rmdir */ 79 { &vop_symlink_desc, genfs_eopnotsupp }, /* symlink */ 80 { &vop_readdir_desc, sysvbfs_readdir }, /* readdir */ 81 { &vop_readlink_desc, genfs_eopnotsupp }, /* readlink */ 82 { &vop_abortop_desc, genfs_abortop }, /* abortop */ 83 { &vop_inactive_desc, sysvbfs_inactive }, /* inactive */ 84 { &vop_reclaim_desc, sysvbfs_reclaim }, /* reclaim */ 85 { &vop_lock_desc, genfs_lock }, /* lock */ 86 { &vop_unlock_desc, genfs_unlock }, /* unlock */ 87 { &vop_bmap_desc, sysvbfs_bmap }, /* bmap */ 88 { &vop_strategy_desc, sysvbfs_strategy }, /* strategy */ 89 { &vop_print_desc, sysvbfs_print }, /* print */ 90 { &vop_islocked_desc, genfs_islocked }, /* islocked */ 91 { &vop_pathconf_desc, sysvbfs_pathconf }, /* pathconf */ 92 { &vop_advlock_desc, sysvbfs_advlock }, /* advlock */ 93 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 94 { &vop_getpages_desc, genfs_getpages }, /* getpages */ 95 { &vop_putpages_desc, genfs_putpages }, /* putpages */ 96 { NULL, NULL } 97}; 98 99const struct vnodeopv_desc sysvbfs_vnodeop_opv_desc = { 100 &sysvbfs_vnodeop_p, 101 sysvbfs_vnodeop_entries 102}; 103 104const struct vnodeopv_desc *sysvbfs_vnodeopv_descs[] = { 105 &sysvbfs_vnodeop_opv_desc, 106 NULL, 107}; 108 109const struct genfs_ops sysvbfs_genfsops = { 110 .gop_size = genfs_size, 111 .gop_alloc = sysvbfs_gop_alloc, 112 .gop_write = genfs_gop_write, 113 .gop_putrange = genfs_gop_putrange, 114}; 115 116struct vfsops sysvbfs_vfsops = { 117 .vfs_name = MOUNT_SYSVBFS, 118 .vfs_min_mount_data = sizeof (struct sysvbfs_args), 119 .vfs_mount = sysvbfs_mount, 120 .vfs_start = sysvbfs_start, 121 .vfs_unmount = sysvbfs_unmount, 122 .vfs_root = sysvbfs_root, 123 .vfs_quotactl = (void *)eopnotsupp, 124 .vfs_statvfs = sysvbfs_statvfs, 125 .vfs_sync = sysvbfs_sync, 126 .vfs_vget = sysvbfs_vget, 127 .vfs_loadvnode = sysvbfs_loadvnode, 128 .vfs_fhtovp = sysvbfs_fhtovp, 129 .vfs_vptofh = sysvbfs_vptofh, 130 .vfs_init = sysvbfs_init, 131 .vfs_reinit = sysvbfs_reinit, 132 .vfs_done = sysvbfs_done, 133 .vfs_snapshot = (void *)eopnotsupp, 134 .vfs_extattrctl = vfs_stdextattrctl, 135 .vfs_suspendctl = genfs_suspendctl, 136 .vfs_renamelock_enter = genfs_renamelock_enter, 137 .vfs_renamelock_exit = genfs_renamelock_exit, 138 .vfs_fsync = (void *)eopnotsupp, 139 .vfs_opv_descs = sysvbfs_vnodeopv_descs 140}; 141 142static int 143sysvbfs_modcmd(modcmd_t cmd, void *arg) 144{ 145 146 switch (cmd) { 147 case MODULE_CMD_INIT: 148 return vfs_attach(&sysvbfs_vfsops); 149 case MODULE_CMD_FINI: 150 return vfs_detach(&sysvbfs_vfsops); 151 default: 152 return ENOTTY; 153 } 154} 155