1 /* $NetBSD: ops_ufs.c,v 1.1.1.3 2015/01/17 16:34:15 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1997-2014 Erez Zadok 5 * Copyright (c) 1990 Jan-Simon Pendry 6 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine 7 * Copyright (c) 1990 The Regents of the University of California. 8 * All rights reserved. 9 * 10 * This code is derived from software contributed to Berkeley by 11 * Jan-Simon Pendry at Imperial College, London. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * 38 * File: am-utils/amd/ops_ufs.c 39 * 40 */ 41 42 /* 43 * UN*X file system 44 */ 45 46 #ifdef HAVE_CONFIG_H 47 # include <config.h> 48 #endif /* HAVE_CONFIG_H */ 49 #include <am_defs.h> 50 #include <amd.h> 51 52 /* forward declarations */ 53 static char *ufs_match(am_opts *fo); 54 static int ufs_mount(am_node *am, mntfs *mf); 55 static int ufs_umount(am_node *am, mntfs *mf); 56 57 /* 58 * Ops structure 59 */ 60 am_ops ufs_ops = 61 { 62 #ifndef __NetBSD__ 63 "ufs", 64 #else 65 "ffs", 66 #endif 67 ufs_match, 68 0, /* ufs_init */ 69 ufs_mount, 70 ufs_umount, 71 amfs_error_lookup_child, 72 amfs_error_mount_child, 73 amfs_error_readdir, 74 0, /* ufs_readlink */ 75 0, /* ufs_mounted */ 76 0, /* ufs_umounted */ 77 amfs_generic_find_srvr, 78 0, /* ufs_get_wchan */ 79 FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */ 80 #ifdef HAVE_FS_AUTOFS 81 AUTOFS_UFS_FS_FLAGS, 82 #endif /* HAVE_FS_AUTOFS */ 83 }; 84 85 86 /* 87 * UFS needs local filesystem and device. 88 */ 89 static char * 90 ufs_match(am_opts *fo) 91 { 92 93 if (!fo->opt_dev) { 94 plog(XLOG_USER, "ufs: no device specified"); 95 return 0; 96 } 97 98 dlog("UFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs); 99 100 /* 101 * Determine magic cookie to put in mtab 102 */ 103 return xstrdup(fo->opt_dev); 104 } 105 106 107 static int 108 mount_ufs(char *mntdir, char *fs_name, char *opts, int on_autofs) 109 { 110 ufs_args_t ufs_args; 111 mntent_t mnt; 112 int genflags; 113 114 /* 115 * Figure out the name of the file system type. 116 */ 117 MTYPE_TYPE type = MOUNT_TYPE_UFS; 118 119 memset((voidp) &ufs_args, 0, sizeof(ufs_args)); /* Paranoid */ 120 121 /* 122 * Fill in the mount structure 123 */ 124 memset((voidp) &mnt, 0, sizeof(mnt)); 125 mnt.mnt_dir = mntdir; 126 mnt.mnt_fsname = fs_name; 127 mnt.mnt_type = MNTTAB_TYPE_UFS; 128 mnt.mnt_opts = opts; 129 130 genflags = compute_mount_flags(&mnt); 131 #ifdef HAVE_FS_AUTOFS 132 if (on_autofs) 133 genflags |= autofs_compute_mount_flags(&mnt); 134 #endif /* HAVE_FS_AUTOFS */ 135 136 #ifdef HAVE_UFS_ARGS_T_FLAGS 137 ufs_args.flags = genflags; /* XXX: is this correct? */ 138 #endif /* HAVE_UFS_ARGS_T_FLAGS */ 139 140 #ifdef HAVE_UFS_ARGS_T_UFS_FLAGS 141 ufs_args.ufs_flags = genflags; 142 #endif /* HAVE_UFS_ARGS_T_UFS_FLAGS */ 143 144 #ifdef HAVE_UFS_ARGS_T_FSPEC 145 ufs_args.fspec = fs_name; 146 #endif /* HAVE_UFS_ARGS_T_FSPEC */ 147 148 #ifdef HAVE_UFS_ARGS_T_UFS_PGTHRESH 149 ufs_args.ufs_pgthresh = hasmntval(&mnt, MNTTAB_OPT_PGTHRESH); 150 #endif /* HAVE_UFS_ARGS_T_UFS_PGTHRESH */ 151 152 /* 153 * Call generic mount routine 154 */ 155 return mount_fs(&mnt, genflags, (caddr_t) &ufs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs); 156 } 157 158 159 static int 160 ufs_mount(am_node *am, mntfs *mf) 161 { 162 int on_autofs = mf->mf_flags & MFF_ON_AUTOFS; 163 int error; 164 165 error = mount_ufs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs); 166 if (error) { 167 errno = error; 168 plog(XLOG_ERROR, "mount_ufs: %m"); 169 return error; 170 } 171 172 return 0; 173 } 174 175 176 static int 177 ufs_umount(am_node *am, mntfs *mf) 178 { 179 int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0; 180 181 return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags); 182 } 183