1/* 2 * Copyright (c) 1997-2014 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. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * 36 * File: am-utils/amd/ops_efs.c 37 * 38 */ 39 40/* 41 * Irix UN*X file system: EFS (Extent File System) 42 */ 43 44#ifdef HAVE_CONFIG_H 45# include <config.h> 46#endif /* HAVE_CONFIG_H */ 47#include <am_defs.h> 48#include <amd.h> 49 50/* forward declarations */ 51static char *efs_match(am_opts *fo); 52static int efs_mount(am_node *am, mntfs *mf); 53static int efs_umount(am_node *am, mntfs *mf); 54 55/* 56 * Ops structure 57 */ 58am_ops efs_ops = 59{ 60 "efs", 61 efs_match, 62 0, /* efs_init */ 63 efs_mount, 64 efs_umount, 65 amfs_error_lookup_child, 66 amfs_error_mount_child, 67 amfs_error_readdir, 68 0, /* efs_readlink */ 69 0, /* efs_mounted */ 70 0, /* efs_umounted */ 71 amfs_generic_find_srvr, 72 0, /* efs_get_wchan */ 73 FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */ 74#ifdef HAVE_FS_AUTOFS 75 AUTOFS_EFS_FS_FLAGS, 76#endif /* HAVE_FS_AUTOFS */ 77}; 78 79 80/* 81 * EFS needs local filesystem and device. 82 */ 83static char * 84efs_match(am_opts *fo) 85{ 86 87 if (!fo->opt_dev) { 88 plog(XLOG_USER, "efs: no device specified"); 89 return 0; 90 } 91 92 dlog("EFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs); 93 94 /* 95 * Determine magic cookie to put in mtab 96 */ 97 return xstrdup(fo->opt_dev); 98} 99 100 101static int 102mount_efs(char *mntdir, char *fs_name, char *opts, int on_autofs) 103{ 104 efs_args_t efs_args; 105 mntent_t mnt; 106 int flags; 107 108 /* 109 * Figure out the name of the file system type. 110 */ 111 MTYPE_TYPE type = MOUNT_TYPE_EFS; 112 113 memset((voidp) &efs_args, 0, sizeof(efs_args)); /* Paranoid */ 114 115 /* 116 * Fill in the mount structure 117 */ 118 memset((voidp) &mnt, 0, sizeof(mnt)); 119 mnt.mnt_dir = mntdir; 120 mnt.mnt_fsname = fs_name; 121 mnt.mnt_type = MNTTAB_TYPE_EFS; 122 mnt.mnt_opts = opts; 123 124 flags = compute_mount_flags(&mnt); 125#ifdef HAVE_FS_AUTOFS 126 if (on_autofs) 127 flags |= autofs_compute_mount_flags(&mnt); 128#endif /* HAVE_FS_AUTOFS */ 129 130#ifdef HAVE_EFS_ARGS_T_FLAGS 131 efs_args.flags = 0; /* XXX: fix this to correct flags */ 132#endif /* HAVE_EFS_ARGS_T_FLAGS */ 133#ifdef HAVE_EFS_ARGS_T_FSPEC 134 efs_args.fspec = fs_name; 135#endif /* HAVE_EFS_ARGS_T_FSPEC */ 136#if defined(HAVE_EFS_ARGS_T_VERSION) && defined(EFS_MNT_VERSION) 137 efs_args.version = EFS_MNT_VERSION; 138#endif /* HAVE_EFS_ARGS_T_VERSION && EFS_MNT_VERSION */ 139 140 /* 141 * Call generic mount routine 142 */ 143 return mount_fs(&mnt, flags, (caddr_t) &efs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs); 144} 145 146 147static int 148efs_mount(am_node *am, mntfs *mf) 149{ 150 int on_autofs = mf->mf_flags & MFF_ON_AUTOFS; 151 int error; 152 153 error = mount_efs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs); 154 if (error) { 155 errno = error; 156 plog(XLOG_ERROR, "mount_efs: %m"); 157 return error; 158 } 159 160 return 0; 161} 162 163 164static int 165efs_umount(am_node *am, mntfs *mf) 166{ 167 int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0; 168 169 return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags); 170} 171 172