diff options
Diffstat (limited to 'amd/ops_ext.c')
| -rw-r--r-- | amd/ops_ext.c | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/amd/ops_ext.c b/amd/ops_ext.c new file mode 100644 index 000000000000..106ab31f3748 --- /dev/null +++ b/amd/ops_ext.c @@ -0,0 +1,223 @@ +/* + * 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); +} |