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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_ext.c
+ *
+ */
+
+/*
+ * Irix UN*X file system: EXT (Extended File System)
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif /* HAVE_CONFIG_H */
+#include <am_defs.h>
+#include <amd.h>
+
+/* forward declarations */
+static char *ext_match(am_opts *fo);
+static int ext2_mount(am_node *am, mntfs *mf);
+static int ext3_mount(am_node *am, mntfs *mf);
+static int ext4_mount(am_node *am, mntfs *mf);
+static int ext_umount(am_node *am, mntfs *mf);
+
+/*
+ * Ops structure
+ */
+am_ops ext2_ops =
+{
+ "ext2",
+ ext_match,
+ 0, /* ext_init */
+ ext2_mount,
+ ext_umount,
+ amfs_error_lookup_child,
+ amfs_error_mount_child,
+ amfs_error_readdir,
+ 0, /* ext_readlink */
+ 0, /* ext_mounted */
+ 0, /* ext_umounted */
+ amfs_generic_find_srvr,
+ 0, /* ext_get_wchan */
+ FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
+#ifdef HAVE_FS_AUTOFS
+ AUTOFS_EXT_FS_FLAGS,
+#endif /* HAVE_FS_AUTOFS */
+};
+
+am_ops ext3_ops =
+{
+ "ext3",
+ ext_match,
+ 0, /* ext_init */
+ ext3_mount,
+ ext_umount,
+ amfs_error_lookup_child,
+ amfs_error_mount_child,
+ amfs_error_readdir,
+ 0, /* ext_readlink */
+ 0, /* ext_mounted */
+ 0, /* ext_umounted */
+ amfs_generic_find_srvr,
+ 0, /* ext_get_wchan */
+ FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
+#ifdef HAVE_FS_AUTOFS
+ AUTOFS_EXT_FS_FLAGS,
+#endif /* HAVE_FS_AUTOFS */
+};
+
+am_ops ext4_ops =
+{
+ "ext4",
+ ext_match,
+ 0, /* ext_init */
+ ext4_mount,
+ ext_umount,
+ amfs_error_lookup_child,
+ amfs_error_mount_child,
+ amfs_error_readdir,
+ 0, /* ext_readlink */
+ 0, /* ext_mounted */
+ 0, /* ext_umounted */
+ amfs_generic_find_srvr,
+ 0, /* ext_get_wchan */
+ FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
+#ifdef HAVE_FS_AUTOFS
+ AUTOFS_EXT_FS_FLAGS,
+#endif /* HAVE_FS_AUTOFS */
+};
+
+/*
+ * EXT needs local filesystem and device.
+ */
+static char *
+ext_match(am_opts *fo)
+{
+
+ if (!fo->opt_dev) {
+ plog(XLOG_USER, "ext: no device specified");
+ return 0;
+ }
+
+ dlog("EXT: 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_ext(char *mntdir, char *fs_name, char *opts, int on_autofs, char *
+ mount_type, const char *mnttab_type)
+{
+ ext_args_t ext_args;
+ mntent_t mnt;
+ int flags;
+
+ /*
+ * Figure out the name of the file system type.
+ */
+ MTYPE_TYPE type = mount_type;
+
+ memset((voidp) &ext_args, 0, sizeof(ext_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;
+ 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 */
+
+ /*
+ * Call generic mount routine
+ */
+ return mount_fs(&mnt, flags, (caddr_t) &ext_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
+}
+
+
+static int
+ext_mount(am_node *am, mntfs *mf, char *mount_type,
+ const char *mnttab_type)
+{
+ int on_autofs = mf->mf_flags & MFF_ON_AUTOFS;
+ int error;
+
+ error = mount_ext(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs,
+ mount_type, mnttab_type);
+ if (error) {
+ errno = error;
+ plog(XLOG_ERROR, "mount_ext: %m");
+ return error;
+ }
+
+ return 0;
+}
+
+static int
+ext2_mount(am_node *am, mntfs *mf)
+{
+ return ext_mount(am, mf, MOUNT_TYPE_EXT2, MNTTAB_TYPE_EXT2);
+}
+
+static int
+ext3_mount(am_node *am, mntfs *mf)
+{
+ return ext_mount(am, mf, MOUNT_TYPE_EXT3, MNTTAB_TYPE_EXT3);
+}
+
+static int
+ext4_mount(am_node *am, mntfs *mf)
+{
+ return ext_mount(am, mf, MOUNT_TYPE_EXT4, MNTTAB_TYPE_EXT4);
+}
+
+static int
+ext_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);
+}