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/* |
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* Copyright (c) 1997-2014 Erez Zadok |
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* Copyright (c) 1990 Jan-Simon Pendry |
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* Copyright (c) 1990 Imperial College of Science, Technology & Medicine |
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* Copyright (c) 1990 The Regents of the University of California. |
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* All rights reserved. |
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* |
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* This code is derived from software contributed to Berkeley by |
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* Jan-Simon Pendry at Imperial College, London. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* File: am-utils/amd/ops_udf.c |
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* |
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*/ |
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|
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/* |
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* UDF file system |
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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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# include <config.h> |
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#endif /* HAVE_CONFIG_H */ |
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#include <am_defs.h> |
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#include <amd.h> |
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|
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/* forward definitions */ |
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static char *udf_match(am_opts *fo); |
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static int udf_mount(am_node *am, mntfs *mf); |
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static int udf_umount(am_node *am, mntfs *mf); |
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|
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/* |
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* Ops structure |
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*/ |
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am_ops udf_ops = |
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{ |
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"udf", |
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udf_match, |
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0, /* udf_init */ |
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udf_mount, |
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udf_umount, |
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amfs_error_lookup_child, |
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amfs_error_mount_child, |
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amfs_error_readdir, |
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0, /* udf_readlink */ |
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0, /* udf_mounted */ |
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0, /* udf_umounted */ |
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amfs_generic_find_srvr, |
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0, /* udf_get_wchan */ |
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FS_MKMNT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */ |
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#ifdef HAVE_FS_AUTOFS |
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AUTOFS_UDF_FS_FLAGS, |
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#endif /* HAVE_FS_AUTOFS */ |
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}; |
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|
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#if defined(HAVE_UDF_ARGS_T_NOBODY_GID) || defined(HAVE_UDF_ARGS_T_NOBODY_UID) |
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static int |
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a_num(const char *s, const char *id_type) |
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{ |
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int id; |
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char *ep; |
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|
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id = strtol(s, &ep, 0); |
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if (*ep || s == ep || id < 0) { |
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plog(XLOG_ERROR, "mount_udf: unknown %s: %s", id_type, s); |
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return 0; |
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} |
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return id; |
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} |
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#endif /* defined(HAVE_UDF_ARGS_T_NOBODY_GID) || defined(HAVE_UDF_ARGS_T_NOBODY_UID) */ |
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|
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#if defined(HAVE_UDF_ARGS_T_NOBODY_GID) |
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static gid_t |
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a_gid(const char *s, const char *id_type) |
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{ |
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struct group *gr; |
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|
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if ((gr = getgrnam(s)) != NULL) |
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return gr->gr_gid; |
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return a_num(s, id_type); |
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} |
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#endif /* defined(HAVE_UDF_ARGS_T_NOBODY_GID) */ |
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|
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#if defined(HAVE_UDF_ARGS_T_NOBODY_UID) |
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static uid_t |
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a_uid(const char *s, const char *id_type) |
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{ |
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struct passwd *pw; |
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|
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if ((pw = getpwnam(s)) != NULL) |
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return pw->pw_uid; |
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return a_num(s, id_type); |
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} |
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#endif /* defined(HAVE_UDF_ARGS_T_NOBODY_UID) */ |
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|
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/* |
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* UDF needs remote filesystem. |
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*/ |
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static char * |
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udf_match(am_opts *fo) |
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{ |
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|
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if (!fo->opt_dev) { |
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plog(XLOG_USER, "udf: no source device specified"); |
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return 0; |
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} |
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dlog("UDF: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs); |
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|
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/* |
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* Determine magic cookie to put in mtab |
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*/ |
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return xstrdup(fo->opt_dev); |
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} |
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|
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static int |
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mount_udf(char *mntdir, char *fs_name, char *opts, int on_autofs) |
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{ |
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udf_args_t udf_args; |
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mntent_t mnt; |
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int flags; |
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char *str; |
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#if defined(HAVE_UDF_ARGS_T_NOBODY_UID) || defined(HAVE_UDF_ARGS_T_ANON_UID) |
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uid_t uid_nobody; |
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gid_t gid_nobody; |
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#endif /* defined(HAVE_UDF_ARGS_T_NOBODY_UID) || defined(HAVE_UDF_ARGS_T_ANON_UID) */ |
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/* |
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* Figure out the name of the file system type. |
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*/ |
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MTYPE_TYPE type = MOUNT_TYPE_UDF; |
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|
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#if defined(HAVE_UDF_ARGS_T_NOBODY_UID) || defined(HAVE_UDF_ARGS_T_ANON_UID) |
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uid_nobody = a_uid("nobody", "user"); |
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if (uid_nobody == 0) { |
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plog(XLOG_ERROR, "mount_udf: invalid uid for nobody"); |
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return EPERM; |
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} |
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#endif /* defined(HAVE_UDF_ARGS_T_NOBODY_UID) || defined(HAVE_UDF_ARGS_T_ANON_UID) */ |
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|
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#if defined(HAVE_UDF_ARGS_T_NOBODY_GID) || defined(HAVE_UDF_ARGS_T_ANON_GID) |
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gid_nobody = a_gid("nobody", "group"); |
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if (gid_nobody == 0) { |
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plog(XLOG_ERROR, "mount_udf: invalid gid for nobody"); |
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return EPERM; |
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} |
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#endif /* defined(HAVE_UDF_ARGS_T_NOBODY_GID) || defined(HAVE_UDF_ARGS_T_ANON_GID) */ |
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|
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str = NULL; |
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memset((voidp) &udf_args, 0, sizeof(udf_args)); /* Paranoid */ |
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|
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/* |
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* Fill in the mount structure |
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*/ |
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memset((voidp)&mnt, 0, sizeof(mnt)); |
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mnt.mnt_dir = mntdir; |
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mnt.mnt_fsname = fs_name; |
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mnt.mnt_type = MNTTAB_TYPE_UDF; |
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mnt.mnt_opts = opts; |
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|
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flags = compute_mount_flags(&mnt); |
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|
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#ifdef HAVE_UDF_ARGS_T_UDFMFLAGS |
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# if defined(MNT2_UDF_OPT_CLOSESESSION) && defined(MNTTAB_OPT_CLOSESESSION) |
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if (amu_hasmntopt(&mnt, MNTTAB_OPT_CLOSESESSION)) |
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udf_args.udfmflags |= MNT2_UDF_OPT_CLOSESESSION; |
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# endif /* defined(MNT2_UDF_OPT_CLOSESESSION) && defined(MNTTAB_OPT_CLOSESESSION) */ |
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#endif /* HAVE_UDF_ARGS_T_UDFMFLAGS */ |
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|
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#ifdef HAVE_UDF_ARGS_T_NOBODY_UID |
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udf_args.nobody_uid = uid_nobody; |
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#endif /* HAVE_UDF_ARGS_T_NOBODY_UID */ |
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|
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#ifdef HAVE_UDF_ARGS_T_NOBODY_GID |
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udf_args.nobody_gid = gid_nobody; |
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#endif /* HAVE_UDF_ARGS_T_NOBODY_GID */ |
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|
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#ifdef HAVE_UDF_ARGS_T_ANON_UID |
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udf_args.anon_uid = uid_nobody; /* default to nobody */ |
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if ((str = hasmntstr(&mnt, MNTTAB_OPT_USER)) != NULL) { |
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udf_args.anon_uid = a_uid(str, MNTTAB_OPT_USER); |
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XFREE(str); |
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} |
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#endif /* HAVE_UDF_ARGS_T_ANON_UID */ |
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|
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#ifdef HAVE_UDF_ARGS_T_ANON_GID |
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udf_args.anon_gid = gid_nobody; /* default to nobody */ |
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if ((str = hasmntstr(&mnt, MNTTAB_OPT_GROUP)) != NULL) { |
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udf_args.anon_gid = a_gid(str, MNTTAB_OPT_GROUP); |
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XFREE(str); |
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} |
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#endif /* HAVE_UDF_ARGS_T_ANON_GID */ |
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|
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#ifdef HAVE_UDF_ARGS_T_GMTOFF |
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udf_args.gmtoff = 0; |
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if ((str = hasmntstr(&mnt, MNTTAB_OPT_GMTOFF)) != NULL) { |
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udf_args.gmtoff = a_num(str, MNTTAB_OPT_GMTOFF); |
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XFREE(str); |
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} |
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#endif /* HAVE_UDF_ARGS_T_GMTOFF */ |
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|
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#ifdef HAVE_UDF_ARGS_T_SESSIONNR |
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udf_args.sessionnr = 0; |
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if ((str = hasmntstr(&mnt, MNTTAB_OPT_SESSIONNR)) != NULL) { |
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udf_args.sessionnr = a_num(str, MNTTAB_OPT_SESSIONNR); |
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XFREE(str); |
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} |
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#endif /* HAVE_UDF_ARGS_T_SESSIONNR */ |
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|
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#ifdef HAVE_UDF_ARGS_T_VERSION |
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# ifdef UDFMNT_VERSION |
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udf_args.version = UDFMNT_VERSION; |
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# endif /* UDFMNT_VERSION */ |
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#endif /* HAVE_UDF_ARGS_T_VERSION */ |
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|
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#ifdef HAVE_UDF_ARGS_T_FSPEC |
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udf_args.fspec = fs_name; |
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#endif /* HAVE_UFS_ARGS_T_FSPEC */ |
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|
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/* |
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* Call generic mount routine |
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*/ |
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return mount_fs(&mnt, flags, (caddr_t)&udf_args, 0, type, 0, NULL, |
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mnttab_file_name, on_autofs); |
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} |
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|
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static int |
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udf_mount(am_node *am, mntfs *mf) |
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{ |
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int on_autofs; |
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int error; |
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|
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on_autofs = mf->mf_flags & MFF_ON_AUTOFS; |
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error = mount_udf(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs); |
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if (error) { |
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errno = error; |
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plog(XLOG_ERROR, "mount_udf: %m"); |
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return error; |
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} |
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return 0; |
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} |
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|
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|
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static int |
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udf_umount(am_node *am, mntfs *mf) |
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{ |
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int unmount_flags; |
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|
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unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0; |
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return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags); |
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} |
