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minix/lib/libpuffs/puffs_msgif.h
Thomas Veerman 490e0de548 Import librefuse and libpuffs 
Import libpuffs and our port of libpuffs. The port was done as part of
GSoC 2011 FUSE project, done by Evgeniy Ivanov. The librefuse import
did not require any porting efforts. Libpuffs has been modified to
understand our VFS-FS protocol and translate between that and PUFFS. As
an example that it works, fuse-ntfs-3g from pkgsrc can be compiled and
used to mount ntfs partitions:
mount -t ntfs-3g <device> <mountpoint>

FUSE only works with the asynchronous version of VFS. See <docs/UPDATING> on
how to run AVFS.

This patch further includes some changes to mount(1) and mount(2) so it's
possible to use file systems provided by pkgsrc (note: manual modifications
to /etc/system.conf are still needed. There has been made an exception for
fuse-ntfs-3g, so it already as an entry).
2011-11-14 11:53:05 +00:00

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/* $NetBSD: puffs_msgif.h,v 1.65.20.2 2009/12/14 19:36:57 sborrill Exp $ */
/*
* Copyright (c) 2005, 2006, 2007 Antti Kantee. All Rights Reserved.
*
* Development of this software was supported by the
* Google Summer of Code program and the Ulla Tuominen Foundation.
* The Google SoC project was mentored by Bill Studenmund.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#ifndef _FS_PUFFS_PUFFS_MSGIF_H_
#define _FS_PUFFS_PUFFS_MSGIF_H_
#include <sys/param.h>
#include <sys/time.h>
#include <sys/uio.h>
#include <sys/statvfs.h>
#include <sys/ucred.h>
#include <time.h>
#define PUFFSOP_VFS 0x01 /* kernel-> */
#define PUFFSOP_VN 0x02 /* kernel-> */
#define PUFFSOP_CACHE 0x03 /* only kernel-> */
#define PUFFSOP_ERROR 0x04 /* only kernel-> */
#define PUFFSOP_FLUSH 0x05 /* ->kernel */
#define PUFFSOP_SUSPEND 0x06 /* ->kernel */
#define PUFFSOPFLAG_FAF 0x10 /* fire-and-forget */
#define PUFFSOPFLAG_ISRESPONSE 0x20 /* req is actually a resp */
#define PUFFSOP_OPCMASK 0x07
#define PUFFSOP_OPCLASS(a) ((a) & PUFFSOP_OPCMASK)
#define PUFFSOP_WANTREPLY(a) (((a) & PUFFSOPFLAG_FAF) == 0)
/* XXX: we don't need everything */
enum {
PUFFS_VFS_MOUNT, PUFFS_VFS_START, PUFFS_VFS_UNMOUNT,
PUFFS_VFS_ROOT, PUFFS_VFS_STATVFS, PUFFS_VFS_SYNC,
PUFFS_VFS_VGET, PUFFS_VFS_FHTOVP, PUFFS_VFS_VPTOFH,
PUFFS_VFS_INIT, PUFFS_VFS_DONE, PUFFS_VFS_SNAPSHOT,
PUFFS_VFS_EXTATTCTL, PUFFS_VFS_SUSPEND
};
#define PUFFS_VFS_MAX PUFFS_VFS_EXTATTCTL
/* moreXXX: we don't need everything here either */
enum {
PUFFS_VN_LOOKUP, PUFFS_VN_CREATE, PUFFS_VN_MKNOD,
PUFFS_VN_OPEN, PUFFS_VN_CLOSE, PUFFS_VN_ACCESS,
PUFFS_VN_GETATTR, PUFFS_VN_SETATTR, PUFFS_VN_READ,
PUFFS_VN_WRITE, PUFFS_VN_IOCTL, PUFFS_VN_FCNTL,
PUFFS_VN_POLL, PUFFS_VN_KQFILTER, PUFFS_VN_REVOKE,
PUFFS_VN_MMAP, PUFFS_VN_FSYNC, PUFFS_VN_SEEK,
PUFFS_VN_REMOVE, PUFFS_VN_LINK, PUFFS_VN_RENAME,
PUFFS_VN_MKDIR, PUFFS_VN_RMDIR, PUFFS_VN_SYMLINK,
PUFFS_VN_READDIR, PUFFS_VN_READLINK, PUFFS_VN_ABORTOP,
PUFFS_VN_INACTIVE, PUFFS_VN_RECLAIM, PUFFS_VN_LOCK,
PUFFS_VN_UNLOCK, PUFFS_VN_BMAP, PUFFS_VN_STRATEGY,
PUFFS_VN_PRINT, PUFFS_VN_ISLOCKED, PUFFS_VN_PATHCONF,
PUFFS_VN_ADVLOCK, PUFFS_VN_LEASE, PUFFS_VN_WHITEOUT,
PUFFS_VN_GETPAGES, PUFFS_VN_PUTPAGES, PUFFS_VN_GETEXTATTR,
PUFFS_VN_LISTEXTATTR, PUFFS_VN_OPENEXTATTR, PUFFS_VN_DELETEEXTATTR,
PUFFS_VN_SETEXTATTR
};
#define PUFFS_VN_MAX PUFFS_VN_SETEXTATTR
/*
* These signal invalid parameters the file system returned.
*/
enum {
PUFFS_ERR_MAKENODE, PUFFS_ERR_LOOKUP, PUFFS_ERR_READDIR,
PUFFS_ERR_READLINK, PUFFS_ERR_READ, PUFFS_ERR_WRITE,
PUFFS_ERR_VPTOFH, PUFFS_ERR_ERROR
};
#define PUFFS_ERR_MAX PUFFS_ERR_VPTOFH
#define PUFFSDEVELVERS 0x80000000
#define PUFFSVERSION 26
#define PUFFSNAMESIZE 32
#define PUFFS_TYPEPREFIX "puffs|"
#if 0
#define PUFFS_TYPELEN (_VFS_NAMELEN - (sizeof(PUFFS_TYPEPREFIX)+1))
#define PUFFS_NAMELEN (_VFS_MNAMELEN-1)
#endif
/*
* Just a weak typedef for code clarity. Additionally, we have a
* more appropriate vanity type for puffs:
* <uep> it should be croissant, not cookie.
*/
typedef void *puffs_cookie_t;
typedef puffs_cookie_t puffs_croissant_t;
/* FIXME: move? */
typedef off_t voff_t;
/* other netbsd stuff
* FIXME: move to some other place?
*/
typedef int32_t lwpid_t; /* LWP id */
typedef unsigned long vsize_t;
typedef int vm_prot_t;
typedef uint64_t u_quad_t; /* quads */
/* FIXME: from sys/vnode.h, which is commented. */
/*
* Vnode attributes. A field value of VNOVAL represents a field whose value
* is unavailable (getattr) or which is not to be changed (setattr).
*/
enum vtype { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO, VBAD };
struct vattr {
enum vtype va_type; /* vnode type (for create) */
mode_t va_mode; /* files access mode and type */
nlink_t va_nlink; /* number of references to file */
uid_t va_uid; /* owner user id */
gid_t va_gid; /* owner group id */
long va_fsid; /* file system id (dev for now) */
ino_t va_fileid; /* file id */
u_quad_t va_size; /* file size in bytes */
long va_blocksize; /* blocksize preferred for i/o */
struct timespec va_atime; /* time of last access */
struct timespec va_mtime; /* time of last modification */
struct timespec va_ctime; /* time file changed */
struct timespec va_birthtime; /* time file created */
u_long va_gen; /* generation number of file */
u_long va_flags; /* flags defined for file */
dev_t va_rdev; /* device the special file represents */
u_quad_t va_bytes; /* bytes of disk space held by file */
u_quad_t va_filerev; /* file modification number */
u_int va_vaflags; /* operations flags, see below */
long va_spare; /* remain quad aligned */
};
struct puffs_kargs {
unsigned int pa_vers;
int pa_fd;
uint32_t pa_flags;
size_t pa_maxmsglen;
int pa_nhashbuckets;
size_t pa_fhsize;
int pa_fhflags;
puffs_cookie_t pa_root_cookie;
enum vtype pa_root_vtype;
voff_t pa_root_vsize;
dev_t pa_root_rdev;
struct statvfs pa_svfsb;
char pa_typename[NAME_MAX + 1];
char pa_mntfromname[NAME_MAX + 1];
uint8_t pa_vnopmask[PUFFS_VN_MAX];
};
#define PUFFS_KFLAG_NOCACHE_NAME 0x01 /* don't use name cache */
#define PUFFS_KFLAG_NOCACHE_PAGE 0x02 /* don't use page cache */
#define PUFFS_KFLAG_NOCACHE 0x03 /* no cache whatsoever */
#define PUFFS_KFLAG_ALLOPS 0x04 /* ignore pa_vnopmask */
#define PUFFS_KFLAG_WTCACHE 0x08 /* write-through page cache */
#define PUFFS_KFLAG_IAONDEMAND 0x10 /* inactive only on demand */
#define PUFFS_KFLAG_LOOKUP_FULLPNBUF 0x20 /* full pnbuf in lookup */
#define PUFFS_KFLAG_MASK 0x3f
#define PUFFS_FHFLAG_DYNAMIC 0x01
#define PUFFS_FHFLAG_NFSV2 0x02
#define PUFFS_FHFLAG_NFSV3 0x04
#define PUFFS_FHFLAG_PROTOMASK 0x06
#define PUFFS_FHFLAG_PASSTHROUGH 0x08
#define PUFFS_FHFLAG_MASK 0x0f
#define PUFFS_FHSIZE_MAX 1020 /* XXX: FHANDLE_SIZE_MAX - 4 */
#define PUFFS_SETBACK_INACT_N1 0x01 /* set VOP_INACTIVE for node 1 */
#define PUFFS_SETBACK_INACT_N2 0x02 /* set VOP_INACTIVE for node 2 */
#define PUFFS_SETBACK_NOREF_N1 0x04 /* set pn PN_NOREFS for node 1 */
#define PUFFS_SETBACK_NOREF_N2 0x08 /* set pn PN_NOREFS for node 2 */
#define PUFFS_SETBACK_MASK 0x0f
#define PUFFS_INVAL_NAMECACHE_NODE 0
#define PUFFS_INVAL_NAMECACHE_DIR 1
#define PUFFS_INVAL_NAMECACHE_ALL 2
#define PUFFS_INVAL_PAGECACHE_NODE_RANGE 3
#define PUFFS_FLUSH_PAGECACHE_NODE_RANGE 4
/* keep this for now */
#define PUFFSREQSIZEOP _IOR ('p', 1, size_t)
#define PUFFCRED_TYPE_UUC 1
#define PUFFCRED_TYPE_INTERNAL 2
#define PUFFCRED_CRED_NOCRED 1
#define PUFFCRED_CRED_FSCRED 2
/*
* 2*MAXPHYS is the max size the system will attempt to copy,
* else treated as garbage
*/
#define PUFFS_MSG_MAXSIZE 2*MAXPHYS
#define PUFFS_MSGSTRUCT_MAX 4096 /* XXX: approxkludge */
#define PUFFS_TOMOVE(a,b) (MIN((a), b->pmp_msg_maxsize - PUFFS_MSGSTRUCT_MAX))
/* puffs struct componentname built by kernel */
struct puffs_kcn {
/* args */
uint32_t pkcn_nameiop; /* namei operation */
uint32_t pkcn_flags; /* flags */
char pkcn_name[MAXPATHLEN]; /* nulterminated path component */
size_t pkcn_namelen; /* current component length */
size_t pkcn_consume; /* IN: extra chars server ate */
};
/*
* Credentials for an operation. Can be either struct uucred for
* ops called from a credential context or NOCRED/FSCRED for ops
* called from within the kernel. It is up to the implementation
* if it makes a difference between these two and the super-user.
*/
struct puffs_kcred {
struct uucred pkcr_uuc;
uint8_t pkcr_type;
uint8_t pkcr_internal;
};
#define PUFFCRED_TYPE_UUC 1
#define PUFFCRED_TYPE_INTERNAL 2
#define PUFFCRED_CRED_NOCRED 1
#define PUFFCRED_CRED_FSCRED 2
#endif /* _FS_PUFFS_PUFFS_MSGIF_H_ */
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