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minix/lib/libpuffs/puffs.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.h,v 1.108.4.4 2009/10/27 20:37:38 bouyer 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 _PUFFS_H_
#define _PUFFS_H_
#include <sys/param.h>
#include <sys/types.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <sys/time.h>
#include <sys/queue.h>
#include "puffs_msgif.h"
#include <mntopts.h>
#include <time.h>
#include <stdbool.h>
#include <string.h>
#include <stdint.h>
#include <dirent.h>
/* MINIX forwards */
struct flock;
struct dirent;
/* XXX: from sys/fstypes.h
* Flags for various system call interfaces.
*
* waitfor flags to vfs_sync() and getvfsstat()
*/
#define MNT_WAIT 1 /* synchronously wait for I/O to complete */
#define MNT_NOWAIT 2 /* start all I/O, but do not wait for it */
#define MNT_LAZY 3 /* push data not written by filesystem syncer */
#define MNT_RDONLY 0x00000001 /* read only filesystem */
#define MNT_SYNCHRONOUS 0x00000002 /* file system written synchronously */
#define MNT_NOEXEC 0x00000004 /* can't exec from filesystem */
#define MNT_NOSUID 0x00000008 /* don't honor setuid bits on fs */
#define MNT_NODEV 0x00000010 /* don't interpret special files */
#define MNT_UNION 0x00000020 /* union with underlying filesystem */
#define MNT_ASYNC 0x00000040 /* file system written asynchronously */
#define MNT_NOCOREDUMP 0x00008000 /* don't write core dumps to this FS */
#define MNT_IGNORE 0x00100000 /* don't show entry in df */
#define MNT_LOG 0x02000000 /* Use logging */
#define MNT_NOATIME 0x04000000 /* Never update access times in fs */
#define MNT_SYMPERM 0x20000000 /* recognize symlink permission */
#define MNT_NODEVMTIME 0x40000000 /* Never update mod times for devs */
#define MNT_SOFTDEP 0x80000000 /* Use soft dependencies */
/* XXX from machine/param.h */
#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
#define DEV_BSIZE (1 << DEV_BSHIFT)
/* FIXME: move?
* some stuff from sys/dirent.h.
*/
#define DT_UNKNOWN 0
#define DT_FIFO 1
#define DT_CHR 2
#define DT_DIR 4
#define DT_BLK 6
#define DT_REG 8
#define DT_LNK 10
#define DT_SOCK 12
#define DT_WHT 14
/*
* The _DIRENT_ALIGN macro returns the alignment of struct dirent.
* struct direct and struct dirent12 used 4 byte alignment but
* struct dirent uses 8.
*/
/* FIXME: in mfs code sizeof(long) and not d_ino */
#undef _DIRENT_ALIGN
#define _DIRENT_ALIGN(dp) (sizeof((dp)->d_ino) - 1)
/*
* The _DIRENT_NAMEOFF macro returns the offset of the d_name field in
* struct dirent
*/
#define _DIRENT_NAMEOFF(dp) \
((char *)(void *)&(dp)->d_name - (char *)(void *)dp)
/*
* The _DIRENT_RECLEN macro gives the minimum record length which will hold
* a name of size "namlen". This requires the amount of space in struct dirent
* without the d_name field, plus enough space for the name with a terminating
* null byte (namlen+1), rounded up to a the appropriate byte boundary.
*/
/* FIXME */
#undef _DIRENT_RECLEN
#define _DIRENT_RECLEN(dp, namlen) \
((_DIRENT_NAMEOFF(dp) + (namlen) + 1 + _DIRENT_ALIGN(dp)) & \
~_DIRENT_ALIGN(dp))
/*
* The _DIRENT_NEXT macro advances to the next dirent record.
*/
#define _DIRENT_NEXT(dp) ((void *)((char *)(void *)(dp) + (dp)->d_reclen))
/* forwards */
struct puffs_cc;
struct puffs_getreq;
struct puffs_cred;
struct puffs_newinfo;
/* paths */
struct puffs_pathobj {
void *po_path;
size_t po_len;
uint32_t po_hash;
};
/* for prefix rename */
struct puffs_pathinfo {
struct puffs_pathobj *pi_old;
struct puffs_pathobj *pi_new;
};
/* describes one segment cached in the kernel */
struct puffs_kcache {
off_t pkc_start;
off_t pkc_end;
LIST_ENTRY(puffs_kcache) pkc_entries;
};
/* XXX: might disappear from here into a private header */
struct puffs_node {
off_t pn_size;
int pn_flags;
struct vattr pn_va;
void *pn_data; /* private data */
struct puffs_pathobj pn_po; /* PUFFS_FLAG_BUILDPATH */
struct puffs_usermount *pn_mnt;
LIST_ENTRY(puffs_node) pn_entries;
LIST_HEAD(,puffs_kcache)pn_cacheinfo; /* PUFFS_KFLAG_CACHE */
/* MINIX fields */
char pn_mountpoint; /* true if mounted on */
int pn_count; /* # times inode used */
};
#define PUFFS_NODE_REMOVED 0x01 /* not on entry list */
struct puffs_usermount;
/*
* megaXXX: these are values from inside _KERNEL
* need to work on the translation for ALL the necessary values.
*/
#define PUFFS_VNOVAL (-1)
#define PUFFS_IO_APPEND 0x020
#define PUFFS_IO_NDELAY 0x100
#define PUFFS_VEXEC 01
#define PUFFS_VWRITE 02
#define PUFFS_VREAD 04
#define PUFFS_FSYNC_DATAONLY 0x0002
#define PUFFS_FSYNC_CACHE 0x0100
/*
* Magic constants
*/
#define PUFFS_CC_STACKSHIFT_DEFAULT 18
struct puffs_cn {
struct puffs_kcn *pcn_pkcnp; /* kernel input */
struct puffs_cred *pcn_cred; /* cred used for lookup */
struct puffs_pathobj pcn_po_full; /* PUFFS_FLAG_BUILDPATH */
};
#define pcn_nameiop pcn_pkcnp->pkcn_nameiop
#define pcn_flags pcn_pkcnp->pkcn_flags
#define pcn_name pcn_pkcnp->pkcn_name
#define pcn_namelen pcn_pkcnp->pkcn_namelen
#define pcn_consume pcn_pkcnp->pkcn_consume
/*
* Puffs options to mount
*/
/* kernel */
#define PUFFSMOPT_NAMECACHE { "namecache", 1, PUFFS_KFLAG_NOCACHE_NAME, 1 }
#define PUFFSMOPT_PAGECACHE { "pagecache", 1, PUFFS_KFLAG_NOCACHE_PAGE, 1 }
#define PUFFSMOPT_CACHE { "cache", 1, PUFFS_KFLAG_NOCACHE, 1 }
#define PUFFSMOPT_ALLOPS { "allops", 0, PUFFS_KFLAG_ALLOPS, 1 }
/* libpuffs */
#define PUFFSMOPT_DUMP { "dump", 0, PUFFS_FLAG_OPDUMP, 1 }
#define PUFFSMOPT_STD \
PUFFSMOPT_NAMECACHE, \
PUFFSMOPT_PAGECACHE, \
PUFFSMOPT_CACHE, \
PUFFSMOPT_ALLOPS, \
PUFFSMOPT_DUMP
extern const struct mntopt puffsmopts[]; /* puffs.c */
/* callbacks for operations */
struct puffs_ops {
int (*puffs_fs_unmount)(struct puffs_usermount *, int);
int (*puffs_fs_statvfs)(struct puffs_usermount *, struct statvfs *);
int (*puffs_fs_sync)(struct puffs_usermount *, int,
const struct puffs_cred *);
int (*puffs_fs_fhtonode)(struct puffs_usermount *, void *, size_t,
struct puffs_newinfo *);
int (*puffs_fs_nodetofh)(struct puffs_usermount *, puffs_cookie_t,
void *, size_t *);
void (*puffs_fs_suspend)(struct puffs_usermount *, int);
int (*puffs_node_lookup)(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *);
int (*puffs_node_create)(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
const struct vattr *);
int (*puffs_node_mknod)(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
const struct vattr *);
int (*puffs_node_open)(struct puffs_usermount *,
puffs_cookie_t, int, const struct puffs_cred *);
int (*puffs_node_close)(struct puffs_usermount *,
puffs_cookie_t, int, const struct puffs_cred *);
int (*puffs_node_access)(struct puffs_usermount *,
puffs_cookie_t, int, const struct puffs_cred *);
int (*puffs_node_getattr)(struct puffs_usermount *,
puffs_cookie_t, struct vattr *, const struct puffs_cred *);
int (*puffs_node_setattr)(struct puffs_usermount *,
puffs_cookie_t, const struct vattr *, const struct puffs_cred *);
int (*puffs_node_poll)(struct puffs_usermount *, puffs_cookie_t, int *);
int (*puffs_node_mmap)(struct puffs_usermount *,
puffs_cookie_t, vm_prot_t, const struct puffs_cred *);
int (*puffs_node_fsync)(struct puffs_usermount *,
puffs_cookie_t, const struct puffs_cred *, int, off_t, off_t);
int (*puffs_node_seek)(struct puffs_usermount *,
puffs_cookie_t, off_t, off_t, const struct puffs_cred *);
int (*puffs_node_remove)(struct puffs_usermount *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
int (*puffs_node_link)(struct puffs_usermount *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
int (*puffs_node_rename)(struct puffs_usermount *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
int (*puffs_node_mkdir)(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
const struct vattr *);
int (*puffs_node_rmdir)(struct puffs_usermount *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
int (*puffs_node_symlink)(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
const struct vattr *,
const char *);
int (*puffs_node_readdir)(struct puffs_usermount *,
puffs_cookie_t, struct dirent *, off_t *, size_t *,
const struct puffs_cred *, int *, off_t *, size_t *);
int (*puffs_node_readlink)(struct puffs_usermount *,
puffs_cookie_t, const struct puffs_cred *, char *, size_t *);
int (*puffs_node_reclaim)(struct puffs_usermount *, puffs_cookie_t);
int (*puffs_node_inactive)(struct puffs_usermount *, puffs_cookie_t);
int (*puffs_node_print)(struct puffs_usermount *, puffs_cookie_t);
int (*puffs_node_pathconf)(struct puffs_usermount *,
puffs_cookie_t, int, int *);
int (*puffs_node_advlock)(struct puffs_usermount *,
puffs_cookie_t, void *, int, struct flock *, int);
int (*puffs_node_read)(struct puffs_usermount *, puffs_cookie_t,
uint8_t *, off_t, size_t *, const struct puffs_cred *, int);
int (*puffs_node_write)(struct puffs_usermount *, puffs_cookie_t,
uint8_t *, off_t, size_t *, const struct puffs_cred *, int);
int (*puffs_node_abortop)(struct puffs_usermount *, puffs_cookie_t,
const struct puffs_cn *);
#if 0
/* enable next time this structure is changed */
void *puffs_ops_spare[32];
#endif
};
typedef int (*pu_pathbuild_fn)(struct puffs_usermount *,
const struct puffs_pathobj *,
const struct puffs_pathobj *, size_t,
struct puffs_pathobj *);
typedef int (*pu_pathtransform_fn)(struct puffs_usermount *,
const struct puffs_pathobj *,
const struct puffs_cn *,
struct puffs_pathobj *);
typedef int (*pu_pathcmp_fn)(struct puffs_usermount *, struct puffs_pathobj *,
struct puffs_pathobj *, size_t, int);
typedef void (*pu_pathfree_fn)(struct puffs_usermount *,
struct puffs_pathobj *);
typedef int (*pu_namemod_fn)(struct puffs_usermount *,
struct puffs_pathobj *, struct puffs_cn *);
typedef void (*pu_errnotify_fn)(struct puffs_usermount *,
uint8_t, int, const char *, puffs_cookie_t);
typedef void (*pu_prepost_fn)(struct puffs_usermount *);
typedef struct puffs_node *(*pu_cmap_fn)(struct puffs_usermount *,
puffs_cookie_t);
enum {
PUFFS_STATE_BEFOREMOUNT, PUFFS_STATE_RUNNING,
PUFFS_STATE_UNMOUNTING, PUFFS_STATE_UNMOUNTED
};
#define PUFFS_FLAG_BUILDPATH 0x80000000 /* node paths in pnode */
#define PUFFS_FLAG_OPDUMP 0x40000000 /* dump all operations */
#define PUFFS_FLAG_HASHPATH 0x20000000 /* speedup: hash paths */
#define PUFFS_FLAG_MASK 0xe0000000
#define PUFFS_FLAG_KERN(a) ((a) & PUFFS_KFLAG_MASK)
#define PUFFS_FLAG_LIB(a) ((a) & PUFFS_FLAG_MASK)
/* blocking mode argument */
#define PUFFSDEV_BLOCK 0
#define PUFFSDEV_NONBLOCK 1
#define PUFFS_STACKSIZE_DEFAULT (1<<PUFFS_CC_STACKSHIFT_DEFAULT)
#define PUFFS_STACKSIZE_MIN ((size_t)-1)
#define DENT_DOT 0
#define DENT_DOTDOT 1
#define DENT_ADJ(a) ((a)-2) /* nth request means dir's n-2th */
/*
* protos
*/
#define PUFFSOP_PROTOS(fsname) \
int fsname##_fs_unmount(struct puffs_usermount *, int); \
int fsname##_fs_statvfs(struct puffs_usermount *, \
struct statvfs *); \
int fsname##_fs_sync(struct puffs_usermount *, int, \
const struct puffs_cred *cred); \
int fsname##_fs_fhtonode(struct puffs_usermount *, void *, \
size_t, struct puffs_newinfo *); \
int fsname##_fs_nodetofh(struct puffs_usermount *, \
puffs_cookie_t, void *, size_t *); \
void fsname##_fs_suspend(struct puffs_usermount *, int); \
\
int fsname##_node_lookup(struct puffs_usermount *, \
puffs_cookie_t, struct puffs_newinfo *, \
const struct puffs_cn *); \
int fsname##_node_create(struct puffs_usermount *, \
puffs_cookie_t, struct puffs_newinfo *, \
const struct puffs_cn *, const struct vattr *); \
int fsname##_node_mknod(struct puffs_usermount *, \
puffs_cookie_t, struct puffs_newinfo *, \
const struct puffs_cn *, const struct vattr *); \
int fsname##_node_open(struct puffs_usermount *, \
puffs_cookie_t, int, const struct puffs_cred *); \
int fsname##_node_close(struct puffs_usermount *, \
puffs_cookie_t, int, const struct puffs_cred *); \
int fsname##_node_access(struct puffs_usermount *, \
puffs_cookie_t, int, const struct puffs_cred *); \
int fsname##_node_getattr(struct puffs_usermount *, \
puffs_cookie_t, struct vattr *, const struct puffs_cred *); \
int fsname##_node_setattr(struct puffs_usermount *, \
puffs_cookie_t, const struct vattr *, \
const struct puffs_cred *); \
int fsname##_node_poll(struct puffs_usermount *, \
puffs_cookie_t, int *); \
int fsname##_node_mmap(struct puffs_usermount *, \
puffs_cookie_t, vm_prot_t, const struct puffs_cred *); \
int fsname##_node_fsync(struct puffs_usermount *, \
puffs_cookie_t, const struct puffs_cred *, int, \
off_t, off_t); \
int fsname##_node_seek(struct puffs_usermount *, \
puffs_cookie_t, off_t, off_t, const struct puffs_cred *); \
int fsname##_node_remove(struct puffs_usermount *, \
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); \
int fsname##_node_link(struct puffs_usermount *, \
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); \
int fsname##_node_rename(struct puffs_usermount *, \
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *, \
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); \
int fsname##_node_mkdir(struct puffs_usermount *, \
puffs_cookie_t, struct puffs_newinfo *, \
const struct puffs_cn *, const struct vattr *); \
int fsname##_node_rmdir(struct puffs_usermount *, \
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); \
int fsname##_node_symlink(struct puffs_usermount *, \
puffs_cookie_t, struct puffs_newinfo *, \
const struct puffs_cn *, const struct vattr *, \
const char *); \
int fsname##_node_readdir(struct puffs_usermount *, \
puffs_cookie_t, struct dirent *, off_t *, size_t *, \
const struct puffs_cred *, int *, off_t *, size_t *); \
int fsname##_node_readlink(struct puffs_usermount *, \
puffs_cookie_t, const struct puffs_cred *, char *, \
size_t *); \
int fsname##_node_reclaim(struct puffs_usermount *, \
puffs_cookie_t); \
int fsname##_node_inactive(struct puffs_usermount *, \
puffs_cookie_t); \
int fsname##_node_print(struct puffs_usermount *, \
puffs_cookie_t); \
int fsname##_node_pathconf(struct puffs_usermount *, \
puffs_cookie_t, int, int *); \
int fsname##_node_advlock(struct puffs_usermount *, \
puffs_cookie_t, void *, int, struct flock *, int); \
int fsname##_node_read(struct puffs_usermount *, puffs_cookie_t,\
uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\
int fsname##_node_write(struct puffs_usermount *, \
puffs_cookie_t, uint8_t *, off_t, size_t *, \
const struct puffs_cred *, int); \
int fsname##_node_abortop(struct puffs_usermount *, \
puffs_cookie_t, const struct puffs_cn *);
#define PUFFSOP_INIT(ops) \
ops = malloc(sizeof(struct puffs_ops)); \
memset(ops, 0, sizeof(struct puffs_ops))
#define PUFFSOP_SET(ops, fsname, fsornode, opname) \
(ops)->puffs_##fsornode##_##opname = fsname##_##fsornode##_##opname
#define PUFFSOP_SETFSNOP(ops, opname) \
(ops)->puffs_fs_##opname = puffs_fsnop_##opname
PUFFSOP_PROTOS(puffs_null) /* XXX */
#define PUFFS_DEVEL_LIBVERSION 34
#define puffs_init(a,b,c,d,e) \
_puffs_init(PUFFS_DEVEL_LIBVERSION,a,b,c,d,e)
#define PNPATH(pnode) ((pnode)->pn_po.po_path)
#define PNPLEN(pnode) ((pnode)->pn_po.po_len)
#define PCNPATH(pcnode) ((pcnode)->pcn_po_full.po_path)
#define PCNPLEN(pcnode) ((pcnode)->pcn_po_full.po_len)
#define PCNISDOTDOT(pcnode) \
((pcnode)->pcn_namelen == 2 && strcmp((pcnode)->pcn_name, "..") == 0)
#define PUFFS_STORE_DCOOKIE(cp, ncp, off) \
if (cp) { \
*((cp)++) = off; \
(*(ncp))++; \
}
/* mainloop */
typedef void (*puffs_ml_loop_fn)(struct puffs_usermount *);
/* framebuf stuff */
struct puffs_framebuf;
typedef int (*puffs_framev_readframe_fn)(struct puffs_usermount *,
struct puffs_framebuf *,
int, int *);
typedef int (*puffs_framev_writeframe_fn)(struct puffs_usermount *,
struct puffs_framebuf *,
int, int *);
typedef int (*puffs_framev_cmpframe_fn)(struct puffs_usermount *,
struct puffs_framebuf *,
struct puffs_framebuf *,
int *);
typedef void (*puffs_framev_fdnotify_fn)(struct puffs_usermount *, int, int);
typedef void (*puffs_framev_gotframe_fn)(struct puffs_usermount *,
struct puffs_framebuf *);
typedef void (*puffs_framev_cb)(struct puffs_usermount *,
struct puffs_framebuf *,
void *, int);
#define PUFFS_FBIO_READ 0x01
#define PUFFS_FBIO_WRITE 0x02
#define PUFFS_FBIO_ERROR 0x04
#define PUFFS_FBQUEUE_URGENT 0x01
__BEGIN_DECLS
#define PUFFS_DEFER ((void *)-1)
struct puffs_usermount *_puffs_init(int, struct puffs_ops *, const char *,
const char *, void *, uint32_t);
int puffs_mount(struct puffs_usermount *, const char *, int, void*);
int puffs_exit(struct puffs_usermount *, int);
void puffs_cancel(struct puffs_usermount *, int);
int puffs_mainloop(struct puffs_usermount *);
int puffs_getstate(struct puffs_usermount *);
void puffs_setstacksize(struct puffs_usermount *, size_t);
void puffs_ml_setloopfn(struct puffs_usermount *, puffs_ml_loop_fn);
void puffs_ml_settimeout(struct puffs_usermount *, struct timespec *);
void puffs_setroot(struct puffs_usermount *,
struct puffs_node *);
struct puffs_node *puffs_getroot(struct puffs_usermount *);
void puffs_setrootinfo(struct puffs_usermount *,
enum vtype, vsize_t, dev_t);
void *puffs_getspecific(struct puffs_usermount *);
void puffs_setspecific(struct puffs_usermount *, void *);
void puffs_setmaxreqlen(struct puffs_usermount *, size_t);
size_t puffs_getmaxreqlen(struct puffs_usermount *);
void puffs_setfhsize(struct puffs_usermount *, size_t, int);
void puffs_setmntinfo(struct puffs_usermount *,
const char *, const char *);
void puffs_setncookiehash(struct puffs_usermount *, int);
struct puffs_pathobj *puffs_getrootpathobj(struct puffs_usermount *);
struct puffs_node *puffs_pn_new(struct puffs_usermount *, void *);
void puffs_pn_remove(struct puffs_node *);
void puffs_pn_put(struct puffs_node *);
struct vattr *puffs_pn_getvap(struct puffs_node *);
void * puffs_pn_getpriv(struct puffs_node *);
void puffs_pn_setpriv(struct puffs_node *, void *);
struct puffs_pathobj *puffs_pn_getpo(struct puffs_node *);
struct puffs_usermount *puffs_pn_getmnt(struct puffs_node *);
void puffs_newinfo_setcookie(struct puffs_newinfo *, puffs_cookie_t);
void puffs_newinfo_setvtype(struct puffs_newinfo *, enum vtype);
void puffs_newinfo_setsize(struct puffs_newinfo *, voff_t);
void puffs_newinfo_setrdev(struct puffs_newinfo *, dev_t);
void *puffs_pn_getmntspecific(struct puffs_node *);
typedef void * (*puffs_nodewalk_fn)(struct puffs_usermount *,
struct puffs_node *, void *);
void *puffs_pn_nodewalk(struct puffs_usermount *,
puffs_nodewalk_fn, void *);
void *puffs_pn_nodeprint(struct puffs_usermount *pu,
struct puffs_node *pn, void *arg);
void puffs_pn_nodeprintall(struct puffs_usermount *pu);
void puffs_setvattr(struct vattr *, const struct vattr *);
void puffs_vattr_null(struct vattr *);
void puffs_null_setops(struct puffs_ops *);
int puffs_dispatch_create(struct puffs_usermount *,
struct puffs_framebuf *,
struct puffs_cc **);
int puffs_dispatch_exec(struct puffs_cc *,
struct puffs_framebuf **);
/*
* generic/dummy routines applicable for some file systems
*/
int puffs_fsnop_unmount(struct puffs_usermount *, int);
int puffs_fsnop_statvfs(struct puffs_usermount *, struct statvfs *);
void puffs_zerostatvfs(struct statvfs *);
int puffs_fsnop_sync(struct puffs_usermount *, int waitfor,
const struct puffs_cred *);
int puffs_genfs_node_getattr(struct puffs_usermount *, puffs_cookie_t,
struct vattr *, const struct puffs_cred *);
int puffs_genfs_node_reclaim(struct puffs_usermount *, puffs_cookie_t);
/*
* Subroutine stuff
*/
int puffs_gendotdent(struct dirent **, ino_t, int, size_t *);
int puffs_nextdent(struct dirent **, const char *, ino_t,
uint8_t, size_t *);
int puffs_vtype2dt(enum vtype);
enum vtype puffs_mode2vt(mode_t);
void puffs_stat2vattr(struct vattr *va, const struct stat *);
mode_t puffs_addvtype2mode(mode_t, enum vtype);
/*
* credentials & permissions
*/
/* Credential fetch */
int puffs_cred_getuid(const struct puffs_cred *, uid_t *);
int puffs_cred_getgid(const struct puffs_cred *, gid_t *);
int puffs_cred_getgroups(const struct puffs_cred *, gid_t *, short *);
/* Credential check */
bool puffs_cred_isuid(const struct puffs_cred *, uid_t);
bool puffs_cred_hasgroup(const struct puffs_cred *, gid_t);
bool puffs_cred_isregular(const struct puffs_cred *);
bool puffs_cred_iskernel(const struct puffs_cred *);
bool puffs_cred_isfs(const struct puffs_cred *);
bool puffs_cred_isjuggernaut(const struct puffs_cred *);
/* misc */
int puffs_access(enum vtype, mode_t, uid_t, gid_t, mode_t,
const struct puffs_cred *);
int puffs_access_chown(uid_t, gid_t, uid_t, gid_t,
const struct puffs_cred *);
int puffs_access_chmod(uid_t, gid_t, enum vtype, mode_t,
const struct puffs_cred *);
int puffs_access_times(uid_t, gid_t, mode_t, int,
const struct puffs_cred *);
/*
* Call Context interfaces relevant for user.
*/
void puffs_cc_yield(struct puffs_cc *);
void puffs_cc_continue(struct puffs_cc *);
void puffs_cc_schedule(struct puffs_cc *);
int puffs_cc_getcaller(struct puffs_cc *,pid_t *,lwpid_t *);
struct puffs_cc *puffs_cc_getcc(struct puffs_usermount *);
/*
* Flushing / invalidation routines
*/
int puffs_inval_namecache_dir(struct puffs_usermount *, puffs_cookie_t);
int puffs_inval_namecache_all(struct puffs_usermount *);
int puffs_inval_pagecache_node(struct puffs_usermount *, puffs_cookie_t);
int puffs_inval_pagecache_node_range(struct puffs_usermount *,
puffs_cookie_t, off_t, off_t);
int puffs_flush_pagecache_node(struct puffs_usermount *, puffs_cookie_t);
int puffs_flush_pagecache_node_range(struct puffs_usermount *,
puffs_cookie_t, off_t, off_t);
/*
* Path constructicons
*/
int puffs_stdpath_buildpath(struct puffs_usermount *,
const struct puffs_pathobj *,
const struct puffs_pathobj *, size_t,
struct puffs_pathobj *);
int puffs_stdpath_cmppath(struct puffs_usermount *, struct puffs_pathobj *,
struct puffs_pathobj *, size_t, int);
void puffs_stdpath_freepath(struct puffs_usermount *,struct puffs_pathobj *);
void *puffs_path_walkcmp(struct puffs_usermount *,
struct puffs_node *, void *);
void *puffs_path_prefixadj(struct puffs_usermount *,
struct puffs_node *, void *);
int puffs_path_pcnbuild(struct puffs_usermount *,
struct puffs_cn *, void *);
void puffs_path_buildhash(struct puffs_usermount *, struct puffs_pathobj *);
void puffs_set_pathbuild(struct puffs_usermount *, pu_pathbuild_fn); void puffs_set_pathtransform(struct puffs_usermount *, pu_pathtransform_fn);
void puffs_set_pathcmp(struct puffs_usermount *, pu_pathcmp_fn);
void puffs_set_pathfree(struct puffs_usermount *, pu_pathfree_fn);
void puffs_set_namemod(struct puffs_usermount *, pu_namemod_fn);
void puffs_set_errnotify(struct puffs_usermount *, pu_errnotify_fn);
void puffs_set_prepost(struct puffs_usermount *,
pu_prepost_fn, pu_prepost_fn);
void puffs_set_cmap(struct puffs_usermount *, pu_cmap_fn);
/*
* Suspension
*/
int puffs_fs_suspend(struct puffs_usermount *);
/*
* Frame buffering
*/
void puffs_framev_init(struct puffs_usermount *,
puffs_framev_readframe_fn,
puffs_framev_writeframe_fn,
puffs_framev_cmpframe_fn,
puffs_framev_gotframe_fn,
puffs_framev_fdnotify_fn);
struct puffs_framebuf *puffs_framebuf_make(void);
void puffs_framebuf_destroy(struct puffs_framebuf *);
int puffs_framebuf_dup(struct puffs_framebuf *,
struct puffs_framebuf **);
void puffs_framebuf_recycle(struct puffs_framebuf *);
int puffs_framebuf_reserve_space(struct puffs_framebuf *,
size_t);
int puffs_framebuf_putdata(struct puffs_framebuf *, const void *, size_t);
int puffs_framebuf_putdata_atoff(struct puffs_framebuf *, size_t,
const void *, size_t);
int puffs_framebuf_getdata(struct puffs_framebuf *, void *, size_t);
int puffs_framebuf_getdata_atoff(struct puffs_framebuf *, size_t,
void *, size_t);
size_t puffs_framebuf_telloff(struct puffs_framebuf *);
size_t puffs_framebuf_tellsize(struct puffs_framebuf *);
size_t puffs_framebuf_remaining(struct puffs_framebuf *);
int puffs_framebuf_seekset(struct puffs_framebuf *, size_t);
int puffs_framebuf_getwindow(struct puffs_framebuf *, size_t,
void **, size_t *);
int puffs_framev_enqueue_cc(struct puffs_cc *, int,
struct puffs_framebuf *, int);
int puffs_framev_enqueue_cb(struct puffs_usermount *, int,
struct puffs_framebuf *,
puffs_framev_cb, void *, int);
int puffs_framev_enqueue_justsend(struct puffs_usermount *, int,
struct puffs_framebuf *, int, int);
int puffs_framev_enqueue_directreceive(struct puffs_cc *, int,
struct puffs_framebuf *, int);
int puffs_framev_enqueue_directsend(struct puffs_cc *, int,
struct puffs_framebuf *, int);
int puffs_framev_enqueue_waitevent(struct puffs_cc *, int, int *);
int puffs_framev_framebuf_ccpromote(struct puffs_framebuf *,
struct puffs_cc *);
int puffs_framev_addfd(struct puffs_usermount *, int, int);
int puffs_framev_enablefd(struct puffs_usermount *, int, int);
int puffs_framev_disablefd(struct puffs_usermount *, int, int);
int puffs_framev_removefd(struct puffs_usermount *, int, int);
void puffs_framev_removeonclose(struct puffs_usermount *, int, int);
void puffs_framev_unmountonclose(struct puffs_usermount *, int, int);
__END_DECLS
#endif /* _PUFFS_H_ */
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