puffs.h revision 1.33 1 /* $NetBSD: puffs.h,v 1.33 2007/03/20 10:22:23 pooka Exp $ */
2
3 /*
4 * Copyright (c) 2005, 2006 Antti Kantee. All Rights Reserved.
5 *
6 * Development of this software was supported by the
7 * Google Summer of Code program and the Ulla Tuominen Foundation.
8 * The Google SoC project was mentored by Bill Studenmund.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The name of the company nor the name of the author may be used to
19 * endorse or promote products derived from this software without specific
20 * prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
23 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #ifndef _PUFFS_H_
36 #define _PUFFS_H_
37
38 #include <sys/param.h>
39 #include <sys/types.h>
40 #include <sys/mount.h>
41 #include <sys/stat.h>
42 #include <sys/statvfs.h>
43 #include <sys/vnode.h>
44
45 #include <fs/puffs/puffs_msgif.h>
46
47 #include <mntopts.h>
48 #include <string.h>
49
50 /* forwards */
51 struct puffs_cc;
52
53 struct puffs_getreq;
54 struct puffs_putreq;
55
56 /* paths */
57 struct puffs_pathobj {
58 void *po_path;
59 size_t po_len;
60 };
61
62 /* for prefix rename */
63 struct puffs_pathinfo {
64 struct puffs_pathobj *pi_old;
65 struct puffs_pathobj *pi_new;
66 };
67
68 /* describes one segment cached in the kernel */
69 struct puffs_kcache {
70 off_t pkc_start;
71 off_t pkc_end;
72
73 LIST_ENTRY(puffs_kcache) pkc_entries;
74 };
75
76 /* XXX: might disappear from here into a private header */
77 struct puffs_node {
78 off_t pn_size;
79 int pn_flag;
80 struct vattr pn_va;
81
82 void *pn_data; /* private data */
83
84 struct puffs_pathobj pn_po; /* PUFFS_FLAG_BUILDPATH */
85
86 struct puffs_usermount *pn_mnt;
87 LIST_ENTRY(puffs_node) pn_entries;
88
89 LIST_HEAD(,puffs_kcache)pn_cacheinfo; /* PUFFS_KFLAG_CACHE */
90 };
91
92
93 struct puffs_usermount;
94
95 /*
96 * megaXXX: these are values from inside _KERNEL
97 * need to work on the translation for ALL the necessary values.
98 */
99 #define PUFFS_VNOVAL (-1)
100 #define PUFFS_IO_APPEND 0x20
101
102 #define PUFFS_FSYNC_DATAONLY 0x0002
103 #define PUFFS_FSYNC_CACHE 0x0100
104
105 /*
106 * Magic constants
107 */
108 #define PUFFS_CC_STACKSIZE_DEFAULT (1024*1024)
109
110 struct puffs_cn {
111 struct puffs_kcn *pcn_pkcnp; /* kernel input */
112 struct puffs_pathobj pcn_po_full; /* PUFFS_FLAG_BUILDPATH */
113 };
114 #define pcn_nameiop pcn_pkcnp->pkcn_nameiop
115 #define pcn_flags pcn_pkcnp->pkcn_flags
116 #define pcn_pid pcn_pkcnp->pkcn_pid
117 #define pcn_cred pcn_pkcnp->pkcn_cred
118 #define pcn_name pcn_pkcnp->pkcn_name
119 #define pcn_namelen pcn_pkcnp->pkcn_namelen
120
121 /*
122 * Puffs options to mount
123 */
124 /* kernel */
125 #define PUFFSMOPT_CACHE { "cache", 1, PUFFS_KFLAG_NOCACHE, 1 }
126 #define PUFFSMOPT_ALLOPS { "allops", 0, PUFFS_KFLAG_ALLOPS, 1 }
127
128 /* libpuffs */
129 #define PUFFSMOPT_DUMP { "dump", 0, PUFFS_FLAG_OPDUMP, 1 }
130
131 #define PUFFSMOPT_STD \
132 PUFFSMOPT_CACHE, \
133 PUFFSMOPT_ALLOPS, \
134 PUFFSMOPT_DUMP
135
136 extern const struct mntopt puffsmopts[]; /* puffs.c */
137
138 /* callbacks for operations */
139 struct puffs_ops {
140 int (*puffs_fs_unmount)(struct puffs_cc *, int, pid_t);
141 int (*puffs_fs_statvfs)(struct puffs_cc *,
142 struct statvfs *, pid_t);
143 int (*puffs_fs_sync)(struct puffs_cc *, int,
144 const struct puffs_cred *, pid_t);
145 void (*puffs_fs_suspend)(struct puffs_cc *, int);
146
147 int (*puffs_node_lookup)(struct puffs_cc *,
148 void *, void **, enum vtype *, voff_t *, dev_t *,
149 const struct puffs_cn *);
150 int (*puffs_node_create)(struct puffs_cc *,
151 void *, void **, const struct puffs_cn *, const struct vattr *);
152 int (*puffs_node_mknod)(struct puffs_cc *,
153 void *, void **, const struct puffs_cn *, const struct vattr *);
154 int (*puffs_node_open)(struct puffs_cc *,
155 void *, int, const struct puffs_cred *, pid_t);
156 int (*puffs_node_close)(struct puffs_cc *,
157 void *, int, const struct puffs_cred *, pid_t);
158 int (*puffs_node_access)(struct puffs_cc *,
159 void *, int, const struct puffs_cred *, pid_t);
160 int (*puffs_node_getattr)(struct puffs_cc *,
161 void *, struct vattr *, const struct puffs_cred *, pid_t);
162 int (*puffs_node_setattr)(struct puffs_cc *,
163 void *, const struct vattr *, const struct puffs_cred *, pid_t);
164 int (*puffs_node_poll)(struct puffs_cc *,
165 void *, struct puffs_vnreq_poll *);
166 int (*puffs_node_mmap)(struct puffs_cc *,
167 void *, int, const struct puffs_cred *, pid_t);
168 int (*puffs_node_fsync)(struct puffs_cc *,
169 void *, const struct puffs_cred *, int, off_t, off_t, pid_t);
170 int (*puffs_node_seek)(struct puffs_cc *,
171 void *, off_t, off_t, const struct puffs_cred *);
172 int (*puffs_node_remove)(struct puffs_cc *,
173 void *, void *, const struct puffs_cn *);
174 int (*puffs_node_link)(struct puffs_cc *,
175 void *, void *, const struct puffs_cn *);
176 int (*puffs_node_rename)(struct puffs_cc *,
177 void *, void *, const struct puffs_cn *, void *, void *,
178 const struct puffs_cn *);
179 int (*puffs_node_mkdir)(struct puffs_cc *,
180 void *, void **, const struct puffs_cn *, const struct vattr *);
181 int (*puffs_node_rmdir)(struct puffs_cc *,
182 void *, void *, const struct puffs_cn *);
183 int (*puffs_node_symlink)(struct puffs_cc *,
184 void *, void **, const struct puffs_cn *, const struct vattr *,
185 const char *);
186 int (*puffs_node_readdir)(struct puffs_cc *,
187 void *, struct dirent *, const struct puffs_cred *,
188 off_t *, size_t *);
189 int (*puffs_node_readlink)(struct puffs_cc *,
190 void *, const struct puffs_cred *, char *, size_t *);
191 int (*puffs_node_reclaim)(struct puffs_cc *,
192 void *, pid_t);
193 int (*puffs_node_inactive)(struct puffs_cc *,
194 void *, pid_t, int *);
195 int (*puffs_node_print)(struct puffs_cc *,
196 void *);
197 int (*puffs_node_pathconf)(struct puffs_cc *,
198 void *, int, int *);
199 int (*puffs_node_advlock)(struct puffs_cc *,
200 void *, void *, int, struct flock *, int);
201 int (*puffs_node_getextattr)(struct puffs_cc *,
202 void *, struct puffs_vnreq_getextattr *);
203 int (*puffs_node_setextattr)(struct puffs_cc *,
204 void *, struct puffs_vnreq_setextattr *);
205 int (*puffs_node_listextattr)(struct puffs_cc *,
206 void *, struct puffs_vnreq_listextattr *);
207 int (*puffs_node_read)(struct puffs_cc *, void *,
208 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);
209 int (*puffs_node_write)(struct puffs_cc *, void *,
210 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);
211
212 int (*puffs_cache_write)(struct puffs_usermount *,
213 void *, size_t, struct puffs_cacherun *);
214 };
215
216 typedef int (*pu_pathbuild_fn)(struct puffs_usermount *,
217 const struct puffs_pathobj *,
218 const struct puffs_pathobj *, size_t,
219 struct puffs_pathobj *);
220 typedef int (*pu_pathtransform_fn)(struct puffs_usermount *,
221 const struct puffs_pathobj *,
222 const struct puffs_cn *,
223 struct puffs_pathobj *);
224 typedef int (*pu_pathcmp_fn)(struct puffs_usermount *, struct puffs_pathobj *,
225 struct puffs_pathobj *, size_t, int);
226 typedef void (*pu_pathfree_fn)(struct puffs_usermount *,
227 struct puffs_pathobj *);
228 typedef int (*pu_namemod_fn)(struct puffs_usermount *,
229 struct puffs_pathobj *, struct puffs_cn *);
230
231 struct puffs_usermount {
232 struct puffs_ops pu_ops;
233
234 int pu_fd;
235 uint32_t pu_flags;
236 size_t pu_maxreqlen;
237 size_t pu_cc_stacksize;
238
239 int pu_state;
240
241 struct puffs_node *pu_pn_root;
242
243 LIST_HEAD(, puffs_node) pu_pnodelst;
244
245 struct puffs_node *(*pu_cmap)(void *);
246
247 pu_pathbuild_fn pu_pathbuild;
248 pu_pathtransform_fn pu_pathtransform;
249 pu_pathcmp_fn pu_pathcmp;
250 pu_pathfree_fn pu_pathfree;
251 pu_namemod_fn pu_namemod;
252
253 void *pu_privdata;
254 };
255
256 enum {
257 PUFFS_STATE_MOUNTING, PUFFS_STATE_RUNNING,
258 PUFFS_STATE_UNMOUNTING, PUFFS_STATE_UNMOUNTED
259 };
260
261 #define PUFFS_FLAG_KERN(a) ((a) & 0x0000ffff)
262 #define PUFFS_FLAG_LIB(a) ((a) & 0xffff0000)
263
264 #define PUFFS_FLAG_BUILDPATH 0x80000000 /* node paths in pnode */
265 #define PUFFS_FLAG_OPDUMP 0x40000000 /* dump all operations */
266
267 /* blocking mode argument */
268 #define PUFFSDEV_BLOCK 0
269 #define PUFFSDEV_NONBLOCK 1
270
271 /* mainloop flags */
272 #define PUFFSLOOP_NODAEMON 0x01
273
274 #define DENT_DOT 0
275 #define DENT_DOTDOT 1
276 #define DENT_ADJ(a) ((a)-2) /* nth request means dir's n-2th */
277
278
279 /*
280 * Operation credentials
281 */
282
283 /* Credential fetch */
284 int puffs_cred_getuid(const struct puffs_cred *pcr, uid_t *);
285 int puffs_cred_getgid(const struct puffs_cred *pcr, gid_t *);
286 int puffs_cred_getgroups(const struct puffs_cred *pcr, gid_t *, short *);
287
288 /* Credential check */
289 int puffs_cred_isuid(const struct puffs_cred *pcr, uid_t);
290 int puffs_cred_hasgroup(const struct puffs_cred *pcr, gid_t);
291 /* kernel internal NOCRED */
292 int puffs_cred_iskernel(const struct puffs_cred *pcr);
293 /* kernel internal FSCRED */
294 int puffs_cred_isfs(const struct puffs_cred *pcr);
295 /* root || NOCRED || FSCRED */
296 int puffs_cred_isjuggernaut(const struct puffs_cred *pcr);
297
298
299 /*
300 * protos
301 */
302
303 #define PUFFSOP_PROTOS(fsname) \
304 int fsname##_fs_mount(struct puffs_usermount *, void **, \
305 struct statvfs *); \
306 int fsname##_fs_unmount(struct puffs_cc *, int, pid_t); \
307 int fsname##_fs_statvfs(struct puffs_cc *, \
308 struct statvfs *, pid_t); \
309 int fsname##_fs_sync(struct puffs_cc *, int, \
310 const struct puffs_cred *cred, pid_t); \
311 void fsname##_fs_suspend(struct puffs_cc *, int); \
312 \
313 int fsname##_node_lookup(struct puffs_cc *, \
314 void *, void **, enum vtype *, voff_t *, dev_t *, \
315 const struct puffs_cn *); \
316 int fsname##_node_create(struct puffs_cc *, \
317 void *, void **, const struct puffs_cn *, \
318 const struct vattr *); \
319 int fsname##_node_mknod(struct puffs_cc *, \
320 void *, void **, const struct puffs_cn *, \
321 const struct vattr *); \
322 int fsname##_node_open(struct puffs_cc *, \
323 void *, int, const struct puffs_cred *, pid_t); \
324 int fsname##_node_close(struct puffs_cc *, \
325 void *, int, const struct puffs_cred *, pid_t); \
326 int fsname##_node_access(struct puffs_cc *, \
327 void *, int, const struct puffs_cred *, pid_t); \
328 int fsname##_node_getattr(struct puffs_cc *, \
329 void *, struct vattr *, const struct puffs_cred *, pid_t); \
330 int fsname##_node_setattr(struct puffs_cc *, \
331 void *, const struct vattr *, const struct puffs_cred *, \
332 pid_t); \
333 int fsname##_node_poll(struct puffs_cc *, \
334 void *, struct puffs_vnreq_poll *); \
335 int fsname##_node_mmap(struct puffs_cc *, \
336 void *, int, const struct puffs_cred *, pid_t); \
337 int fsname##_node_fsync(struct puffs_cc *, \
338 void *, const struct puffs_cred *, int, off_t, off_t, \
339 pid_t); \
340 int fsname##_node_seek(struct puffs_cc *, \
341 void *, off_t, off_t, const struct puffs_cred *); \
342 int fsname##_node_remove(struct puffs_cc *, \
343 void *, void *, const struct puffs_cn *); \
344 int fsname##_node_link(struct puffs_cc *, \
345 void *, void *, const struct puffs_cn *); \
346 int fsname##_node_rename(struct puffs_cc *, \
347 void *, void *, const struct puffs_cn *, void *, void *, \
348 const struct puffs_cn *); \
349 int fsname##_node_mkdir(struct puffs_cc *, \
350 void *, void **, const struct puffs_cn *, \
351 const struct vattr *); \
352 int fsname##_node_rmdir(struct puffs_cc *, \
353 void *, void *, const struct puffs_cn *); \
354 int fsname##_node_symlink(struct puffs_cc *, \
355 void *, void **, const struct puffs_cn *, \
356 const struct vattr *, const char *); \
357 int fsname##_node_readdir(struct puffs_cc *, \
358 void *, struct dirent *, const struct puffs_cred *, \
359 off_t *, size_t *); \
360 int fsname##_node_readlink(struct puffs_cc *, \
361 void *, const struct puffs_cred *, char *, size_t *); \
362 int fsname##_node_reclaim(struct puffs_cc *, \
363 void *, pid_t); \
364 int fsname##_node_inactive(struct puffs_cc *, \
365 void *, pid_t, int *); \
366 int fsname##_node_print(struct puffs_cc *, \
367 void *); \
368 int fsname##_node_pathconf(struct puffs_cc *, \
369 void *, int, int *); \
370 int fsname##_node_advlock(struct puffs_cc *, \
371 void *, void *, int, struct flock *, int); \
372 int fsname##_node_getextattr(struct puffs_cc *, \
373 void *, struct puffs_vnreq_getextattr *); \
374 int fsname##_node_setextattr(struct puffs_cc *, \
375 void *, struct puffs_vnreq_setextattr *); \
376 int fsname##_node_listextattr(struct puffs_cc *, \
377 void *, struct puffs_vnreq_listextattr *); \
378 int fsname##_node_read(struct puffs_cc *, void *, \
379 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\
380 int fsname##_node_write(struct puffs_cc *, void *, \
381 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\
382 \
383 int fsname##_cache_write(struct puffs_usermount *, void *, \
384 size_t, struct puffs_cacheinfo *);
385
386 #define PUFFSOP_INIT(ops) \
387 ops = malloc(sizeof(struct puffs_ops)); \
388 memset(ops, 0, sizeof(struct puffs_ops))
389 #define PUFFSOP_SET(ops, fsname, fsornode, opname) \
390 (ops)->puffs_##fsornode##_##opname = fsname##_##fsornode##_##opname
391 #define PUFFSOP_SETFSNOP(ops, opname) \
392 (ops)->puffs_fs_##opname = puffs_fsnop_##opname
393
394 #define PUFFS_DEVEL_LIBVERSION 9
395 #define puffs_mount(a,b,c,d,e,f,g) \
396 _puffs_mount(PUFFS_DEVEL_LIBVERSION,a,b,c,d,e,f,g)
397
398
399 #define PNPATH(pnode) ((pnode)->pn_po.po_path)
400 #define PNPLEN(pnode) ((pnode)->pn_po.po_len)
401 #define PCNPATH(pcnode) ((pcnode)->pcn_po_full.po_path)
402 #define PCNPLEN(pcnode) ((pcnode)->pcn_po_full.po_len)
403 #define PCNISDOTDOT(pcnode) \
404 ((pcnode)->pcn_namelen == 2 && strcmp((pcnode)->pcn_name, "..") == 0)
405
406 __BEGIN_DECLS
407
408 struct puffs_usermount *_puffs_mount(int, struct puffs_ops *, const char *, int,
409 const char *, void *, uint32_t, size_t);
410 int puffs_start(struct puffs_usermount *, void *, struct statvfs *);
411 int puffs_exit(struct puffs_usermount *, int);
412 int puffs_mainloop(struct puffs_usermount *, int);
413
414
415 int puffs_getselectable(struct puffs_usermount *);
416 int puffs_setblockingmode(struct puffs_usermount *, int);
417 int puffs_getstate(struct puffs_usermount *);
418 void puffs_setstacksize(struct puffs_usermount *, size_t);
419
420 struct puffs_pathobj *puffs_getrootpathobj(struct puffs_usermount *);
421
422 struct puffs_node *puffs_pn_new(struct puffs_usermount *, void *);
423 void puffs_pn_put(struct puffs_node *);
424
425 typedef void * (*puffs_nodewalk_fn)(struct puffs_usermount *,
426 struct puffs_node *, void *);
427 void *puffs_pn_nodewalk(struct puffs_usermount *,
428 puffs_nodewalk_fn, void *);
429
430 void puffs_setvattr(struct vattr *, const struct vattr *);
431 void puffs_vattr_null(struct vattr *);
432
433 /*
434 * generic/dummy routines applicable for some file systems
435 */
436 int puffs_fsnop_unmount(struct puffs_cc *, int, pid_t);
437 int puffs_fsnop_statvfs(struct puffs_cc *, struct statvfs *, pid_t);
438 void puffs_zerostatvfs(struct statvfs *);
439 int puffs_fsnop_sync(struct puffs_cc *, int waitfor,
440 const struct puffs_cred *, pid_t);
441 int puffs_genfs_node_reclaim(struct puffs_cc *, void *, pid_t);
442
443 /*
444 * Subroutine stuff
445 */
446
447 int puffs_gendotdent(struct dirent **, ino_t, int, size_t *);
448 int puffs_nextdent(struct dirent **, const char *, ino_t,
449 uint8_t, size_t *);
450 int puffs_vtype2dt(enum vtype);
451 enum vtype puffs_mode2vt(mode_t);
452 void puffs_stat2vattr(struct vattr *va, const struct stat *);
453 mode_t puffs_addvtype2mode(mode_t, enum vtype);
454
455 /*
456 * Requests
457 */
458
459 struct puffs_getreq *puffs_req_makeget(struct puffs_usermount *,
460 size_t, int);
461 int puffs_req_loadget(struct puffs_getreq *);
462 struct puffs_req *puffs_req_get(struct puffs_getreq *);
463 int puffs_req_remainingget(struct puffs_getreq *);
464 void puffs_req_setmaxget(struct puffs_getreq *, int);
465 void puffs_req_destroyget(struct puffs_getreq *);
466
467 struct puffs_putreq *puffs_req_makeput(struct puffs_usermount *);
468 void puffs_req_put(struct puffs_putreq *,struct puffs_req *);
469 void puffs_req_putcc(struct puffs_putreq *,struct puffs_cc*);
470 int puffs_req_putput(struct puffs_putreq *);
471 void puffs_req_resetput(struct puffs_putreq *);
472 void puffs_req_destroyput(struct puffs_putreq *);
473
474 int puffs_req_handle(struct puffs_usermount *,
475 struct puffs_getreq *,
476 struct puffs_putreq *, int);
477
478 /*
479 * Call Context interfaces relevant for user.
480 */
481
482 void puffs_cc_yield(struct puffs_cc *);
483 void puffs_cc_continue(struct puffs_cc *);
484 struct puffs_usermount *puffs_cc_getusermount(struct puffs_cc *);
485 struct puffs_cc *puffs_cc_create(struct puffs_usermount *);
486 void puffs_cc_destroy(struct puffs_cc *);
487
488 /*
489 * Execute or continue a request
490 */
491
492 int puffs_dopreq(struct puffs_usermount *, struct puffs_req *,
493 struct puffs_putreq *);
494 int puffs_docc(struct puffs_cc *, struct puffs_putreq *);
495
496 /*
497 * Flushing / invalidation routines
498 */
499
500 int puffs_inval_namecache_dir(struct puffs_usermount *, void *);
501 int puffs_inval_namecache_all(struct puffs_usermount *);
502
503 int puffs_inval_pagecache_node(struct puffs_usermount *, void *);
504
505 /*
506 * Path constructicons
507 */
508
509 int puffs_stdpath_buildpath(struct puffs_usermount *,
510 const struct puffs_pathobj *,
511 const struct puffs_pathobj *, size_t,
512 struct puffs_pathobj *);
513 int puffs_stdpath_cmppath(struct puffs_usermount *, struct puffs_pathobj *,
514 struct puffs_pathobj *, size_t, int);
515 void puffs_stdpath_freepath(struct puffs_usermount *,struct puffs_pathobj *);
516
517 void *puffs_path_walkcmp(struct puffs_usermount *,
518 struct puffs_node *, void *);
519 void *puffs_path_prefixadj(struct puffs_usermount *,
520 struct puffs_node *, void *);
521 int puffs_path_pcnbuild(struct puffs_usermount *,
522 struct puffs_cn *, void *);
523
524 void puffs_set_pathbuild(struct puffs_usermount *, pu_pathbuild_fn);
525 void puffs_set_pathtransform(struct puffs_usermount *, pu_pathtransform_fn);
526 void puffs_set_pathcmp(struct puffs_usermount *, pu_pathcmp_fn);
527 void puffs_set_pathfree(struct puffs_usermount *, pu_pathfree_fn);
528 void puffs_set_namemod(struct puffs_usermount *, pu_namemod_fn);
529
530 /*
531 * Suspension
532 */
533
534 int puffs_fs_suspend(struct puffs_usermount *);
535
536 __END_DECLS
537
538 #endif /* _PUFFS_H_ */
539