277 lines
7.2 KiB
Groff
277 lines
7.2 KiB
Groff
.\" $NetBSD: refuse.3,v 1.12 2016/11/15 00:34:19 pho Exp $
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.\"
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.\" Copyright © 2007 Alistair Crooks. All rights reserved.
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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. The name of the author may not be used to endorse or promote
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.\" products derived from this software without specific prior written
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.\" permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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.\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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.\" GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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.\" NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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.\" SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd November 15, 2016
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.Dt REFUSE 3
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.Os
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.Sh NAME
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.Nm refuse
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.Nd Re-implementation of a file system in userspace system
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.Sh LIBRARY
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.Lb librefuse
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.Sh SYNOPSIS
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.In fuse.h
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.Ft int
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.Fo fuse_main
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.Fa "int argc" "char **argv" "const struct fuse_operations *"
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.Fc
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.Ft struct fuse_args
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.Fo FUSE_ARGS_INIT
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.Fa "int argc" "char **argv"
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.Fc
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.Ft struct fuse_opt
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.Fo FUSE_OPT_KEY
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.Fa "const char* templ" "int32_t key"
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.Fc
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.Vt struct fuse_opt Dv FUSE_OPT_END;
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.Vt int32_t Dv FUSE_OPT_KEY_OPT;
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.Vt int32_t Dv FUSE_OPT_KEY_NONOPT;
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.Vt int32_t Dv FUSE_OPT_KEY_KEEP;
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.Vt int32_t Dv FUSE_OPT_KEY_DISCARD;
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.Ft int
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.Fo fuse_opt_add_arg
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.Fa "struct fuse_args *args" "const char *arg"
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.Fc
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.Ft int
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.Fo fuse_opt_add_opt
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.Fa "char **opts" "const char *opt"
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.Fc
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.Ft int
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.Fo fuse_opt_add_opt_escaped
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.Fa "char **opts" "const char *opt"
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.Fc
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.Ft void
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.Fo fuse_opt_free_args
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.Fa "struct fuse_args *args"
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.Fc
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.Ft int
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.Fo fuse_opt_insert_arg
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.Fa "struct fuse_args *args" "int pos" "const char *arg"
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.Fc
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.Ft int
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.Fo fuse_opt_match
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.Fa "const struct fuse_opt *opts" "const char *opt"
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.Fc
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.Ft int
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.Fo fuse_opt_parse
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.Fa "struct fuse_args *args" "void *userdata"
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.Fa "const struct fuse_opt *descriptions" "fuse_opt_proc_t processingfunc"
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.Fc
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.Ft int
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.Fo fuse_teardown
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.Fa "struct fuse *fuse" "char *mountpoint"
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.Fc
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.Ft struct fuse *
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.Fo fuse_setup
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.Fa "int argc" "char **argv" "const struct fuse_operations *ops"
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.Fa "size_t opssize" "char **mountpoint" "int *multithreaded" "int *fd"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_getattr
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.Fa "const char *path" "struct stat *attrs"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_readlink
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.Fa "const char *path" "char *output" "size_t outlen"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_mknod
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.Fa "const char *path" "mode_t permissions" "dev_t devicenumber"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_mkdir
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.Fa "const char *path" "mode_t permissions"
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.Fc
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.Ft int
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.Fo puffs_fuse_unlink
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.Fa "const char *path"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_rmdir
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.Fa "const char *path"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_symlink
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.Fa "const char *path" "const char *target"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_rename
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.Fa "const char *from" "const char *to"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_link
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.Fa "const char *from" "const char *to"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_chmod
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.Fa "const char *path" "mode_t permissions"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_own
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.Fa "const char *path" "uid_t owner" "gid_t group"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_truncate
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.Fa "const char *path" "off_t newsize"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_utime
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.Fa "const char *path" "struct utimbuf *newtimes"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_open
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.Fa "const char *path" "struct fuse_file_info *fileinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_read
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.Fa "const char *path" "char *buffer" "size_t bufferlen" "off_t startoffset"
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.Fa "struct fuse_file_info *fileinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_write
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.Fa "const char *path" "char *buffer" "size_t bufferlen" "off_t startoffset"
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.Fa "struct fuse_file_info *fileinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_fs_statfs
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.Fa "const char *path" "struct statvfs *vfsinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_flush
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.Fa "const char *path" "struct fuse_file_info *fileinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_fsync
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.Fa "const char *path" "int flags" "struct fuse_file_info *fileinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_setxattr
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.Fa "const char *path" "const char *attrname" "const char *attrvalue"
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.Fa "size_t attrsize" "int flags"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_getxattr
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.Fa "const char *path" "const char *attrname" "const char *attrvalue"
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.Fa "size_t attrvaluesize"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_listxattr
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.Fa "const char *path" "const char *attrname"
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.Fa "size_t attrvaluesize"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_removexattr
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.Fa "const char *path" "const char *attrname"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_opendir
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.Fa "const char *path" "struct fuse_file_info *fileinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_readdir
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.Fa "const char *path" "void *data" "fuse_fill_dir_t fillinfo"
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.Fa "off_t offset" "struct fuse_file_info *fileinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_releasedir
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.Fa "const char *path" "struct fuse_file_info *fileinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_fsyncdir
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.Fa "const char *path" "int flags" "struct fuse_file_info *fileinfo"
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.Fc
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.Ft void *
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.Fo puffs_fuse_fs_init
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.Fa "struct fuse_conn_info *connectioninfo"
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.Fc
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.Ft void
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.Fo puffs_fuse_node_destroy
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.Fa "void *connection"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_access
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.Fa "const char *path" "int accesstype"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_create
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.Fa "const char *path" "mode_t permissions" "struct fuse_file_info *fileinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_ftruncate
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.Fa "const char *path" "off_t offset" "struct fuse_file_info *fileinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_fgetattr
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.Fa "const char *path" "struct stat *attrs" "struct fuse_file_info *fileinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_lock
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.Fa "const char *path" "struct fuse_file_info *fileinfo"
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.Fa "int locktype" "struct flock *lockinfo"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_utimens
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.Fa "const char *path" "const struct timespec *newtimes"
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.Fc
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.Ft int
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.Fo puffs_fuse_node_bmap
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.Fa "const char *path" "size_t mapsize" "uint64_t offset"
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.Fc
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.Sh DESCRIPTION
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.Nm
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is a reimplementation of the file system in user space subsystem.
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Operations are transported from the kernel virtual file system layer
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to the concrete implementation behind
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.Nm ,
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where they are processed and results are sent back to the kernel.
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.Pp
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It uses the framework provided by the
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.Xr puffs 3
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subsystem, and, through that, the kernel interface provided by
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.Xr puffs 4 .
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.Sh SEE ALSO
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.Xr puffs 3 ,
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.Xr puffs 4
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.Rs
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.%A Antti Kantee
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.%A Alistair Crooks
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.%D September 2007
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.%J EuroBSDCon 2007
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.%T ReFUSE: Userspace FUSE Reimplementation Using puffs
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.Re
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.Sh HISTORY
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An unsupported experimental version of
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.Nm
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first appeared in
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.Nx 5.0 .
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.Sh AUTHORS
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.An Alistair Crooks Aq Mt agc@NetBSD.org ,
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.An Antti Kantee Aq Mt pooka@NetBSD.org
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.Sh BUGS
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Many, legion, but well-loved.
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