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_ext.c 37 * 38 */ 39 40/* 41 * Irix UN*X file system: EXT (Extended 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 *ext_match(am_opts *fo); 52static int ext2_mount(am_node *am, mntfs *mf); 53static int ext3_mount(am_node *am, mntfs *mf); 54static int ext4_mount(am_node *am, mntfs *mf); 55static int ext_umount(am_node *am, mntfs *mf); 56 57/* 58 * Ops structure 59 */ 60am_ops ext2_ops = 61{ 62 "ext2", 63 ext_match, 64 0, /* ext_init */ 65 ext2_mount, 66 ext_umount, 67 amfs_error_lookup_child, 68 amfs_error_mount_child, 69 amfs_error_readdir, 70 0, /* ext_readlink */ 71 0, /* ext_mounted */ 72 0, /* ext_umounted */ 73 amfs_generic_find_srvr, 74 0, /* ext_get_wchan */ 75 FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */ 76#ifdef HAVE_FS_AUTOFS 77 AUTOFS_EXT_FS_FLAGS, 78#endif /* HAVE_FS_AUTOFS */ 79}; 80 81am_ops ext3_ops = 82{ 83 "ext3", 84 ext_match, 85 0, /* ext_init */ 86 ext3_mount, 87 ext_umount, 88 amfs_error_lookup_child, 89 amfs_error_mount_child, 90 amfs_error_readdir, 91 0, /* ext_readlink */ 92 0, /* ext_mounted */ 93 0, /* ext_umounted */ 94 amfs_generic_find_srvr, 95 0, /* ext_get_wchan */ 96 FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */ 97#ifdef HAVE_FS_AUTOFS 98 AUTOFS_EXT_FS_FLAGS, 99#endif /* HAVE_FS_AUTOFS */ 100}; 101 102am_ops ext4_ops = 103{ 104 "ext4", 105 ext_match, 106 0, /* ext_init */ 107 ext4_mount, 108 ext_umount, 109 amfs_error_lookup_child, 110 amfs_error_mount_child, 111 amfs_error_readdir, 112 0, /* ext_readlink */ 113 0, /* ext_mounted */ 114 0, /* ext_umounted */ 115 amfs_generic_find_srvr, 116 0, /* ext_get_wchan */ 117 FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */ 118#ifdef HAVE_FS_AUTOFS 119 AUTOFS_EXT_FS_FLAGS, 120#endif /* HAVE_FS_AUTOFS */ 121}; 122 123/* 124 * EXT needs local filesystem and device. 125 */ 126static char * 127ext_match(am_opts *fo) 128{ 129 130 if (!fo->opt_dev) { 131 plog(XLOG_USER, "ext: no device specified"); 132 return 0; 133 } 134 135 dlog("EXT: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs); 136 137 /* 138 * Determine magic cookie to put in mtab 139 */ 140 return xstrdup(fo->opt_dev); 141} 142 143 144static int 145mount_ext(char *mntdir, char *fs_name, char *opts, int on_autofs, char * 146 mount_type, const char *mnttab_type) 147{ 148 ext_args_t ext_args; 149 mntent_t mnt; 150 int flags; 151 152 /* 153 * Figure out the name of the file system type. 154 */ 155 MTYPE_TYPE type = mount_type; 156 157 memset((voidp) &ext_args, 0, sizeof(ext_args)); /* Paranoid */ 158 159 /* 160 * Fill in the mount structure 161 */ 162 memset((voidp) &mnt, 0, sizeof(mnt)); 163 mnt.mnt_dir = mntdir; 164 mnt.mnt_fsname = fs_name; 165 mnt.mnt_type = mnttab_type; 166 mnt.mnt_opts = opts; 167 168 flags = compute_mount_flags(&mnt); 169#ifdef HAVE_FS_AUTOFS 170 if (on_autofs) 171 flags |= autofs_compute_mount_flags(&mnt); 172#endif /* HAVE_FS_AUTOFS */ 173 174 /* 175 * Call generic mount routine 176 */ 177 return mount_fs(&mnt, flags, (caddr_t) &ext_args, 0, type, 0, NULL, mnttab_file_name, on_autofs); 178} 179 180 181static int 182ext_mount(am_node *am, mntfs *mf, char *mount_type, 183 const char *mnttab_type) 184{ 185 int on_autofs = mf->mf_flags & MFF_ON_AUTOFS; 186 int error; 187 188 error = mount_ext(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs, 189 mount_type, mnttab_type); 190 if (error) { 191 errno = error; 192 plog(XLOG_ERROR, "mount_ext: %m"); 193 return error; 194 } 195 196 return 0; 197} 198 199static int 200ext2_mount(am_node *am, mntfs *mf) 201{ 202 return ext_mount(am, mf, MOUNT_TYPE_EXT2, MNTTAB_TYPE_EXT2); 203} 204 205static int 206ext3_mount(am_node *am, mntfs *mf) 207{ 208 return ext_mount(am, mf, MOUNT_TYPE_EXT3, MNTTAB_TYPE_EXT3); 209} 210 211static int 212ext4_mount(am_node *am, mntfs *mf) 213{ 214 return ext_mount(am, mf, MOUNT_TYPE_EXT4, MNTTAB_TYPE_EXT4); 215} 216 217static int 218ext_umount(am_node *am, mntfs *mf) 219{ 220 int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0; 221 222 return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags); 223} 224