1/* 2 * Copyright (c) 1997-2006 Erez Zadok 3 * Copyright (c) 1990 Jan-Simon Pendry 4 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine 5 * Copyright (c) 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Jan-Simon Pendry at Imperial College, London. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgment: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * 40 * File: am-utils/amd/ops_efs.c 41 * 42 */ 43 44/* 45 * Irix UN*X file system: EFS (Extent File System) 46 */ 47 48#ifdef HAVE_CONFIG_H 49# include <config.h> 50#endif /* HAVE_CONFIG_H */ 51#include <am_defs.h> 52#include <amd.h> 53 54/* forward declarations */ 55static char *efs_match(am_opts *fo); 56static int efs_mount(am_node *am, mntfs *mf); 57static int efs_umount(am_node *am, mntfs *mf); 58 59/* 60 * Ops structure 61 */ 62am_ops efs_ops = 63{ 64 "efs", 65 efs_match, 66 0, /* efs_init */ 67 efs_mount, 68 efs_umount, 69 amfs_error_lookup_child, 70 amfs_error_mount_child, 71 amfs_error_readdir, 72 0, /* efs_readlink */ 73 0, /* efs_mounted */ 74 0, /* efs_umounted */ 75 amfs_generic_find_srvr, 76 0, /* efs_get_wchan */ 77 FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */ 78#ifdef HAVE_FS_AUTOFS 79 AUTOFS_EFS_FS_FLAGS, 80#endif /* HAVE_FS_AUTOFS */ 81}; 82 83 84/* 85 * EFS needs local filesystem and device. 86 */ 87static char * 88efs_match(am_opts *fo) 89{ 90 91 if (!fo->opt_dev) { 92 plog(XLOG_USER, "efs: no device specified"); 93 return 0; 94 } 95 96 dlog("EFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs); 97 98 /* 99 * Determine magic cookie to put in mtab 100 */ 101 return strdup(fo->opt_dev); 102} 103 104 105static int 106mount_efs(char *mntdir, char *fs_name, char *opts, int on_autofs) 107{ 108 efs_args_t efs_args; 109 mntent_t mnt; 110 int flags; 111 112 /* 113 * Figure out the name of the file system type. 114 */ 115 MTYPE_TYPE type = MOUNT_TYPE_EFS; 116 117 memset((voidp) &efs_args, 0, sizeof(efs_args)); /* Paranoid */ 118 119 /* 120 * Fill in the mount structure 121 */ 122 memset((voidp) &mnt, 0, sizeof(mnt)); 123 mnt.mnt_dir = mntdir; 124 mnt.mnt_fsname = fs_name; 125 mnt.mnt_type = MNTTAB_TYPE_EFS; 126 mnt.mnt_opts = opts; 127 128 flags = compute_mount_flags(&mnt); 129#ifdef HAVE_FS_AUTOFS 130 if (on_autofs) 131 flags |= autofs_compute_mount_flags(&mnt); 132#endif /* HAVE_FS_AUTOFS */ 133 134#ifdef HAVE_EFS_ARGS_T_FLAGS 135 efs_args.flags = 0; /* XXX: fix this to correct flags */ 136#endif /* HAVE_EFS_ARGS_T_FLAGS */ 137#ifdef HAVE_EFS_ARGS_T_FSPEC 138 efs_args.fspec = fs_name; 139#endif /* HAVE_EFS_ARGS_T_FSPEC */ 140 141 /* 142 * Call generic mount routine 143 */ 144 return mount_fs(&mnt, flags, (caddr_t) &efs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs); 145} 146 147 148static int 149efs_mount(am_node *am, mntfs *mf) 150{ 151 int on_autofs = mf->mf_flags & MFF_ON_AUTOFS; 152 int error; 153 154 error = mount_efs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs); 155 if (error) { 156 errno = error; 157 plog(XLOG_ERROR, "mount_efs: %m"); 158 return error; 159 } 160 161 return 0; 162} 163 164 165static int 166efs_umount(am_node *am, mntfs *mf) 167{ 168 int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0; 169 170 return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags); 171} 172 173