/* $NetBSD: ops_udf.c,v 1.1.1.2 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_udf.c * */ /* * UDF file system */ #ifdef HAVE_CONFIG_H # include #endif /* HAVE_CONFIG_H */ #include #include /* forward definitions */ static char *udf_match(am_opts *fo); static int udf_mount(am_node *am, mntfs *mf); static int udf_umount(am_node *am, mntfs *mf); /* * Ops structure */ am_ops udf_ops = { "udf", udf_match, 0, /* udf_init */ udf_mount, udf_umount, amfs_error_lookup_child, amfs_error_mount_child, amfs_error_readdir, 0, /* udf_readlink */ 0, /* udf_mounted */ 0, /* udf_umounted */ amfs_generic_find_srvr, 0, /* udf_get_wchan */ FS_MKMNT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */ #ifdef HAVE_FS_AUTOFS AUTOFS_UDF_FS_FLAGS, #endif /* HAVE_FS_AUTOFS */ }; #if defined(HAVE_UDF_ARGS_T_NOBODY_GID) || defined(HAVE_UDF_ARGS_T_NOBODY_UID) static int a_num(const char *s, const char *id_type) { int id; char *ep; id = strtol(s, &ep, 0); if (*ep || s == ep || id < 0) { plog(XLOG_ERROR, "mount_udf: unknown %s: %s", id_type, s); return 0; } return id; } #endif /* defined(HAVE_UDF_ARGS_T_NOBODY_GID) || defined(HAVE_UDF_ARGS_T_NOBODY_UID) */ #if defined(HAVE_UDF_ARGS_T_NOBODY_GID) static gid_t a_gid(const char *s, const char *id_type) { struct group *gr; if ((gr = getgrnam(s)) != NULL) return gr->gr_gid; return a_num(s, id_type); } #endif /* defined(HAVE_UDF_ARGS_T_NOBODY_GID) */ #if defined(HAVE_UDF_ARGS_T_NOBODY_UID) static uid_t a_uid(const char *s, const char *id_type) { struct passwd *pw; if ((pw = getpwnam(s)) != NULL) return pw->pw_uid; return a_num(s, id_type); } #endif /* defined(HAVE_UDF_ARGS_T_NOBODY_UID) */ /* * UDF needs remote filesystem. */ static char * udf_match(am_opts *fo) { if (!fo->opt_dev) { plog(XLOG_USER, "udf: no source device specified"); return 0; } dlog("UDF: 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_udf(char *mntdir, char *fs_name, char *opts, int on_autofs) { udf_args_t udf_args; mntent_t mnt; int flags; char *str; #if defined(HAVE_UDF_ARGS_T_NOBODY_UID) || defined(HAVE_UDF_ARGS_T_ANON_UID) uid_t uid_nobody; gid_t gid_nobody; #endif /* defined(HAVE_UDF_ARGS_T_NOBODY_UID) || defined(HAVE_UDF_ARGS_T_ANON_UID) */ /* * Figure out the name of the file system type. */ MTYPE_TYPE type = MOUNT_TYPE_UDF; #if defined(HAVE_UDF_ARGS_T_NOBODY_UID) || defined(HAVE_UDF_ARGS_T_ANON_UID) uid_nobody = a_uid("nobody", "user"); if (uid_nobody == 0) { plog(XLOG_ERROR, "mount_udf: invalid uid for nobody"); return EPERM; } #endif /* defined(HAVE_UDF_ARGS_T_NOBODY_UID) || defined(HAVE_UDF_ARGS_T_ANON_UID) */ #if defined(HAVE_UDF_ARGS_T_NOBODY_GID) || defined(HAVE_UDF_ARGS_T_ANON_GID) gid_nobody = a_gid("nobody", "group"); if (gid_nobody == 0) { plog(XLOG_ERROR, "mount_udf: invalid gid for nobody"); return EPERM; } #endif /* defined(HAVE_UDF_ARGS_T_NOBODY_GID) || defined(HAVE_UDF_ARGS_T_ANON_GID) */ str = NULL; memset((voidp) &udf_args, 0, sizeof(udf_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_UDF; mnt.mnt_opts = opts; flags = compute_mount_flags(&mnt); #ifdef HAVE_UDF_ARGS_T_UDFMFLAGS # if defined(MNT2_UDF_OPT_CLOSESESSION) && defined(MNTTAB_OPT_CLOSESESSION) if (amu_hasmntopt(&mnt, MNTTAB_OPT_CLOSESESSION)) udf_args.udfmflags |= MNT2_UDF_OPT_CLOSESESSION; # endif /* defined(MNT2_UDF_OPT_CLOSESESSION) && defined(MNTTAB_OPT_CLOSESESSION) */ #endif /* HAVE_UDF_ARGS_T_UDFMFLAGS */ #ifdef HAVE_UDF_ARGS_T_NOBODY_UID udf_args.nobody_uid = uid_nobody; #endif /* HAVE_UDF_ARGS_T_NOBODY_UID */ #ifdef HAVE_UDF_ARGS_T_NOBODY_GID udf_args.nobody_gid = gid_nobody; #endif /* HAVE_UDF_ARGS_T_NOBODY_GID */ #ifdef HAVE_UDF_ARGS_T_ANON_UID udf_args.anon_uid = uid_nobody; /* default to nobody */ if ((str = hasmntstr(&mnt, MNTTAB_OPT_USER)) != NULL) { udf_args.anon_uid = a_uid(str, MNTTAB_OPT_USER); XFREE(str); } #endif /* HAVE_UDF_ARGS_T_ANON_UID */ #ifdef HAVE_UDF_ARGS_T_ANON_GID udf_args.anon_gid = gid_nobody; /* default to nobody */ if ((str = hasmntstr(&mnt, MNTTAB_OPT_GROUP)) != NULL) { udf_args.anon_gid = a_gid(str, MNTTAB_OPT_GROUP); XFREE(str); } #endif /* HAVE_UDF_ARGS_T_ANON_GID */ #ifdef HAVE_UDF_ARGS_T_GMTOFF udf_args.gmtoff = 0; if ((str = hasmntstr(&mnt, MNTTAB_OPT_GMTOFF)) != NULL) { udf_args.gmtoff = a_num(str, MNTTAB_OPT_GMTOFF); XFREE(str); } #endif /* HAVE_UDF_ARGS_T_GMTOFF */ #ifdef HAVE_UDF_ARGS_T_SESSIONNR udf_args.sessionnr = 0; if ((str = hasmntstr(&mnt, MNTTAB_OPT_SESSIONNR)) != NULL) { udf_args.sessionnr = a_num(str, MNTTAB_OPT_SESSIONNR); XFREE(str); } #endif /* HAVE_UDF_ARGS_T_SESSIONNR */ #ifdef HAVE_UDF_ARGS_T_VERSION # ifdef UDFMNT_VERSION udf_args.version = UDFMNT_VERSION; # endif /* UDFMNT_VERSION */ #endif /* HAVE_UDF_ARGS_T_VERSION */ #ifdef HAVE_UFS_ARGS_T_FSPEC udf_args.fspec = fs_name; #endif /* HAVE_UFS_ARGS_T_FSPEC */ /* * Call generic mount routine */ return mount_fs(&mnt, flags, (caddr_t)&udf_args, 0, type, 0, NULL, mnttab_file_name, on_autofs); } static int udf_mount(am_node *am, mntfs *mf) { int on_autofs; int error; on_autofs = mf->mf_flags & MFF_ON_AUTOFS; error = mount_udf(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs); if (error) { errno = error; plog(XLOG_ERROR, "mount_udf: %m"); return error; } return 0; } static int udf_umount(am_node *am, mntfs *mf) { int unmount_flags; unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0; return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags); }