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-rw-r--r--amd/ops_udf.c272
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diff --git a/amd/ops_udf.c b/amd/ops_udf.c
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+/*
+ * 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 <config.h>
+#endif /* HAVE_CONFIG_H */
+#include <am_defs.h>
+#include <amd.h>
+
+/* 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);
+}