ops_pcfs.c revision 131709
1/* 2 * Copyright (c) 1997-2004 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 * %W% (Berkeley) %G% 40 * 41 * $Id: ops_pcfs.c,v 1.3.2.5 2004/01/06 03:15:16 ezk Exp $ 42 * $FreeBSD: head/contrib/amd/amd/ops_pcfs.c 131709 2004-07-06 13:44:14Z mbr $ 43 * 44 */ 45 46/* 47 * PC (MS-DOS) file system 48 */ 49 50#ifdef HAVE_CONFIG_H 51# include <config.h> 52#endif /* HAVE_CONFIG_H */ 53#include <am_defs.h> 54#include <amd.h> 55 56/* forward definitions */ 57static char *pcfs_match(am_opts *fo); 58static int pcfs_fmount(mntfs *mf); 59static int pcfs_fumount(mntfs *mf); 60 61/* 62 * Ops structure 63 */ 64am_ops pcfs_ops = 65{ 66 "pcfs", 67 pcfs_match, 68 0, /* pcfs_init */ 69 amfs_auto_fmount, 70 pcfs_fmount, 71 amfs_auto_fumount, 72 pcfs_fumount, 73 amfs_error_lookuppn, 74 amfs_error_readdir, 75 0, /* pcfs_readlink */ 76 0, /* pcfs_mounted */ 77 0, /* pcfs_umounted */ 78 find_amfs_auto_srvr, 79 FS_MKMNT | FS_UBACKGROUND | FS_AMQINFO 80}; 81 82 83 84/* 85 * PCFS needs remote filesystem. 86 */ 87static char * 88pcfs_match(am_opts *fo) 89{ 90 if (!fo->opt_dev) { 91 plog(XLOG_USER, "pcfs: no source device specified"); 92 return 0; 93 } 94#ifdef DEBUG 95 dlog("PCFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs); 96#endif /* DEBUG */ 97 98 /* 99 * Determine magic cookie to put in mtab 100 */ 101 return strdup(fo->opt_dev); 102} 103 104 105static int 106mount_pcfs(char *dir, char *fs_name, char *opts) 107{ 108 pcfs_args_t pcfs_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_PCFS; 116 117 memset((voidp) &pcfs_args, 0, sizeof(pcfs_args)); /* Paranoid */ 118 119 /* 120 * Fill in the mount structure 121 */ 122 memset((voidp) &mnt, 0, sizeof(mnt)); 123 mnt.mnt_dir = dir; 124 mnt.mnt_fsname = fs_name; 125 mnt.mnt_type = MNTTAB_TYPE_PCFS; 126 mnt.mnt_opts = opts; 127 128 flags = compute_mount_flags(&mnt); 129 130#ifdef HAVE_PCFS_ARGS_T_FSPEC 131 pcfs_args.fspec = fs_name; 132#endif /* HAVE_PCFS_ARGS_T_FSPEC */ 133 134#ifdef HAVE_PCFS_ARGS_T_MASK 135 pcfs_args.mask = 0777; /* this may be the msdos file modes */ 136#endif /* HAVE_PCFS_ARGS_T_MASK */ 137 138#ifdef HAVE_PCFS_ARGS_T_DIRMASK 139 pcfs_args.dirmask = 0777; /* this may be the msdos dir modes */ 140#endif /* HAVE_PCFS_ARGS_T_DIRMASK */ 141 142#ifdef HAVE_PCFS_ARGS_T_UID 143 pcfs_args.uid = 0; /* root */ 144#endif /* HAVE_PCFS_ARGS_T_UID */ 145 146#ifdef HAVE_PCFS_ARGS_T_GID 147 pcfs_args.gid = 0; /* wheel */ 148#endif /* HAVE_PCFS_ARGS_T_GID */ 149 150#ifdef HAVE_PCFS_ARGS_T_SECONDSWEST 151 pcfs_args.secondswest = 0; /* XXX: fill in correct values */ 152#endif /* HAVE_PCFS_ARGS_T_SECONDSWEST */ 153#ifdef HAVE_PCFS_ARGS_T_DSTTIME 154 pcfs_args.dsttime = 0; /* XXX: fill in correct values */ 155#endif /* HAVE_PCFS_ARGS_T_DSTTIME */ 156 157 /* 158 * Call generic mount routine 159 */ 160 return mount_fs(&mnt, flags, (caddr_t) & pcfs_args, 0, type, 0, NULL, mnttab_file_name); 161} 162 163 164static int 165pcfs_fmount(mntfs *mf) 166{ 167 int error; 168 169 error = mount_pcfs(mf->mf_mount, mf->mf_info, mf->mf_mopts); 170 if (error) { 171 errno = error; 172 plog(XLOG_ERROR, "mount_pcfs: %m"); 173 return error; 174 } 175 176 return 0; 177} 178 179 180static int 181pcfs_fumount(mntfs *mf) 182{ 183 return UMOUNT_FS(mf->mf_mount, mnttab_file_name); 184} 185