4cccedc203
based on top of libpuffs. This version is still barebones and incomplete, but will benefit from others working on it, rather than just me. The option code has still to be implemented, but this gets far enough to run hellofs (from the fuse web page): % priv ./hellofs ~/hellofs/mnt & % l ~/hellofs/mnt total 2 drwxr-xr-x 2 root wheel 0 Jan 1 1970 . drwxr-xr-x 4 agc agc 512 Feb 9 18:05 .. -r--r--r-- 1 root wheel 13 Jan 1 1970 hello % cat ~/hellofs/mnt/hello Hello World! % df ~/hellofs/mnt Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/dk0 28101396 18946682 7749646 70% / kernfs 1 1 0 100% /kern procfs 4 4 0 100% /proc ptyfs 1 1 0 100% /dev/pts puffs:refuse:hellofs 28101396 18946682 7749646 70% /home/agc/hellofs/mnt % mount -v -v ... mount: mount_puffs not found for /home/agc/hellofs/mnt puffs:refuse:hellofs on /home/agc/hellofs/mnt type puffs (nosuid, nodev, fsid: 0xcb01/0x6acb, reads: sync 0 async 0, writes: sync 0 async 0) % This code is not enabled by default. Yet.
228 lines
6.1 KiB
Groff
228 lines
6.1 KiB
Groff
.\" $NetBSD: refuse.3,v 1.1 2007/02/11 10:31:37 agc 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 January 23, 2007
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.Dt REFUSE 3
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.Os
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.Sh NAME
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.Nm librefuse
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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 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_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 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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.Pp
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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 libpuffs 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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.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 agc@NetBSD.org
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.Sh BUGS
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Many, legion, but well-loved.
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