/* $NetBSD: ops_pcfs.c,v 1.1.1.3 2015/01/17 16:34:15 christos Exp $ */ /* * Copyright (c) 1997-2014 Erez Zadok * Copyright (c) 1990 Jan-Simon Pendry * Copyright (c) 1990 Imperial College of Science, Technology & Medicine * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Jan-Simon Pendry at Imperial College, London. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * * File: am-utils/amd/ops_pcfs.c * */ /* * PC (MS-DOS) file system */ #ifdef HAVE_CONFIG_H # include #endif /* HAVE_CONFIG_H */ #include #include /* forward definitions */ static char *pcfs_match(am_opts *fo); static int pcfs_mount(am_node *am, mntfs *mf); static int pcfs_umount(am_node *am, mntfs *mf); /* * Ops structure */ am_ops pcfs_ops = { "pcfs", pcfs_match, 0, /* pcfs_init */ pcfs_mount, pcfs_umount, amfs_error_lookup_child, amfs_error_mount_child, amfs_error_readdir, 0, /* pcfs_readlink */ 0, /* pcfs_mounted */ 0, /* pcfs_umounted */ amfs_generic_find_srvr, 0, /* pcfs_get_wchan */ FS_MKMNT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */ #ifdef HAVE_FS_AUTOFS AUTOFS_PCFS_FS_FLAGS, #endif /* HAVE_FS_AUTOFS */ }; /* * PCFS needs remote filesystem. */ static char * pcfs_match(am_opts *fo) { if (!fo->opt_dev) { plog(XLOG_USER, "pcfs: no source device specified"); return 0; } dlog("PCFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs); /* * Determine magic cookie to put in mtab */ return xstrdup(fo->opt_dev); } static int mount_pcfs(char *mntdir, char *fs_name, char *opts, int on_autofs) { pcfs_args_t pcfs_args; mntent_t mnt; int flags; #if defined(HAVE_PCFS_ARGS_T_MASK) || defined(HAVE_PCFS_ARGS_T_DIRMASK) int mask; #endif /* defined(HAVE_PCFS_ARGS_T_MASK) || defined(HAVE_PCFS_ARGS_T_DIRMASK) */ #if defined(HAVE_PCFS_ARGS_T_UID) || defined(HAVE_PCFS_ARGS_T_UID) char *str; #endif /* defined(HAVE_PCFS_ARGS_T_UID) || defined(HAVE_PCFS_ARGS_T_UID) */ /* * Figure out the name of the file system type. */ MTYPE_TYPE type = MOUNT_TYPE_PCFS; memset((voidp) &pcfs_args, 0, sizeof(pcfs_args)); /* Paranoid */ /* * Fill in the mount structure */ memset((voidp) &mnt, 0, sizeof(mnt)); mnt.mnt_dir = mntdir; mnt.mnt_fsname = fs_name; mnt.mnt_type = MNTTAB_TYPE_PCFS; mnt.mnt_opts = opts; flags = compute_mount_flags(&mnt); #ifdef HAVE_FS_AUTOFS if (on_autofs) flags |= autofs_compute_mount_flags(&mnt); #endif /* HAVE_FS_AUTOFS */ if (amuDebug(D_TRACE)) plog(XLOG_DEBUG, "mount_pcfs: flags=0x%x", (u_int) flags); #ifdef HAVE_PCFS_ARGS_T_FSPEC pcfs_args.fspec = fs_name; #endif /* HAVE_PCFS_ARGS_T_FSPEC */ #ifdef HAVE_PCFS_ARGS_T_MASK pcfs_args.mask = 0777; /* this may be the msdos file modes */ if ((mask = hasmntval(&mnt, MNTTAB_OPT_MASK)) > 0) pcfs_args.mask = mask; if (amuDebug(D_TRACE)) plog(XLOG_DEBUG, "mount_pcfs: mask=%o (octal)", (u_int) pcfs_args.mask); #endif /* HAVE_PCFS_ARGS_T_MASK */ #ifdef HAVE_PCFS_ARGS_T_DIRMASK pcfs_args.dirmask = 0777; /* this may be the msdos dir modes */ if ((mask = hasmntval(&mnt, MNTTAB_OPT_DIRMASK)) > 0) pcfs_args.dirmask = mask; if (amuDebug(D_TRACE)) plog(XLOG_DEBUG, "mount_pcfs: dirmask=%o (octal)", (u_int) pcfs_args.dirmask); #endif /* HAVE_PCFS_ARGS_T_DIRMASK */ #ifdef HAVE_PCFS_ARGS_T_UID pcfs_args.uid = 0; /* default to root */ if ((str = hasmntstr(&mnt, MNTTAB_OPT_USER)) != NULL) { struct passwd *pw; if ((pw = getpwnam(str)) != NULL) pcfs_args.uid = pw->pw_uid; else /* maybe used passed a UID number, not user name */ pcfs_args.uid = atoi(str); /* atoi returns '0' if it failed */ XFREE(str); } if (amuDebug(D_TRACE)) plog(XLOG_DEBUG, "mount_pcfs: uid=%d", (int) pcfs_args.uid); #endif /* HAVE_PCFS_ARGS_T_UID */ #ifdef HAVE_PCFS_ARGS_T_GID pcfs_args.gid = 0; /* default to wheel/root group */ if ((str = hasmntstr(&mnt, MNTTAB_OPT_GROUP)) != NULL) { struct group *gr; if ((gr = getgrnam(str)) != NULL) pcfs_args.gid = gr->gr_gid; else /* maybe used passed a GID number, not group name */ pcfs_args.gid = atoi(str); /* atoi returns '0' if it failed */ XFREE(str); } if (amuDebug(D_TRACE)) plog(XLOG_DEBUG, "mount_pcfs: gid=%d", (int) pcfs_args.gid); #endif /* HAVE_PCFS_ARGS_T_GID */ #ifdef HAVE_PCFS_ARGS_T_SECONDSWEST pcfs_args.secondswest = 0; /* XXX: fill in correct values */ #endif /* HAVE_PCFS_ARGS_T_SECONDSWEST */ #ifdef HAVE_PCFS_ARGS_T_DSTTIME pcfs_args.dsttime = 0; /* XXX: fill in correct values */ #endif /* HAVE_PCFS_ARGS_T_DSTTIME */ /* * Call generic mount routine */ return mount_fs(&mnt, flags, (caddr_t) & pcfs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs); } static int pcfs_mount(am_node *am, mntfs *mf) { int on_autofs = mf->mf_flags & MFF_ON_AUTOFS; int error; error = mount_pcfs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs); if (error) { errno = error; plog(XLOG_ERROR, "mount_pcfs: %m"); return error; } return 0; } static int pcfs_umount(am_node *am, mntfs *mf) { int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0; return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags); }