1 /* $NetBSD: ops_efs.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_efs.c 39 * 40 */ 41 42 /* 43 * Irix UN*X file system: EFS (Extent 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 *efs_match(am_opts *fo); 54 static int efs_mount(am_node *am, mntfs *mf); 55 static int efs_umount(am_node *am, mntfs *mf); 56 57 /* 58 * Ops structure 59 */ 60 am_ops efs_ops = 61 { 62 "efs", 63 efs_match, 64 0, /* efs_init */ 65 efs_mount, 66 efs_umount, 67 amfs_error_lookup_child, 68 amfs_error_mount_child, 69 amfs_error_readdir, 70 0, /* efs_readlink */ 71 0, /* efs_mounted */ 72 0, /* efs_umounted */ 73 amfs_generic_find_srvr, 74 0, /* efs_get_wchan */ 75 FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */ 76 #ifdef HAVE_FS_AUTOFS 77 AUTOFS_EFS_FS_FLAGS, 78 #endif /* HAVE_FS_AUTOFS */ 79 }; 80 81 82 /* 83 * EFS needs local filesystem and device. 84 */ 85 static char * 86 efs_match(am_opts *fo) 87 { 88 89 if (!fo->opt_dev) { 90 plog(XLOG_USER, "efs: no device specified"); 91 return 0; 92 } 93 94 dlog("EFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs); 95 96 /* 97 * Determine magic cookie to put in mtab 98 */ 99 return xstrdup(fo->opt_dev); 100 } 101 102 103 static int 104 mount_efs(char *mntdir, char *fs_name, char *opts, int on_autofs) 105 { 106 efs_args_t efs_args; 107 mntent_t mnt; 108 int flags; 109 110 /* 111 * Figure out the name of the file system type. 112 */ 113 MTYPE_TYPE type = MOUNT_TYPE_EFS; 114 115 memset((voidp) &efs_args, 0, sizeof(efs_args)); /* Paranoid */ 116 117 /* 118 * Fill in the mount structure 119 */ 120 memset((voidp) &mnt, 0, sizeof(mnt)); 121 mnt.mnt_dir = mntdir; 122 mnt.mnt_fsname = fs_name; 123 mnt.mnt_type = MNTTAB_TYPE_EFS; 124 mnt.mnt_opts = opts; 125 126 flags = compute_mount_flags(&mnt); 127 #ifdef HAVE_FS_AUTOFS 128 if (on_autofs) 129 flags |= autofs_compute_mount_flags(&mnt); 130 #endif /* HAVE_FS_AUTOFS */ 131 132 #ifdef HAVE_EFS_ARGS_T_FLAGS 133 efs_args.flags = 0; /* XXX: fix this to correct flags */ 134 #endif /* HAVE_EFS_ARGS_T_FLAGS */ 135 #ifdef HAVE_EFS_ARGS_T_FSPEC 136 efs_args.fspec = fs_name; 137 #endif /* HAVE_EFS_ARGS_T_FSPEC */ 138 #if defined(HAVE_EFS_ARGS_T_VERSION) && defined(EFS_MNT_VERSION) 139 efs_args.version = EFS_MNT_VERSION; 140 #endif /* HAVE_EFS_ARGS_T_VERSION && EFS_MNT_VERSION */ 141 142 /* 143 * Call generic mount routine 144 */ 145 return mount_fs(&mnt, flags, (caddr_t) &efs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs); 146 } 147 148 149 static int 150 efs_mount(am_node *am, mntfs *mf) 151 { 152 int on_autofs = mf->mf_flags & MFF_ON_AUTOFS; 153 int error; 154 155 error = mount_efs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs); 156 if (error) { 157 errno = error; 158 plog(XLOG_ERROR, "mount_efs: %m"); 159 return error; 160 } 161 162 return 0; 163 } 164 165 166 static int 167 efs_umount(am_node *am, mntfs *mf) 168 { 169 int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0; 170 171 return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags); 172 } 173 174