puffs.h revision 1.37 1 /* $NetBSD: puffs.h,v 1.37 2007/03/22 15:32:22 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 #define PUFFS_VEXEC 01
102 #define PUFFS_VWRITE 02
103 #define PUFFS_VREAD 04
104
105 #define PUFFS_FSYNC_DATAONLY 0x0002
106 #define PUFFS_FSYNC_CACHE 0x0100
107
108 /*
109 * Magic constants
110 */
111 #define PUFFS_CC_STACKSIZE_DEFAULT (1024*1024)
112
113 struct puffs_cn {
114 struct puffs_kcn *pcn_pkcnp; /* kernel input */
115 struct puffs_pathobj pcn_po_full; /* PUFFS_FLAG_BUILDPATH */
116 };
117 #define pcn_nameiop pcn_pkcnp->pkcn_nameiop
118 #define pcn_flags pcn_pkcnp->pkcn_flags
119 #define pcn_pid pcn_pkcnp->pkcn_pid
120 #define pcn_cred pcn_pkcnp->pkcn_cred
121 #define pcn_name pcn_pkcnp->pkcn_name
122 #define pcn_namelen pcn_pkcnp->pkcn_namelen
123
124 /*
125 * Puffs options to mount
126 */
127 /* kernel */
128 #define PUFFSMOPT_CACHE { "cache", 1, PUFFS_KFLAG_NOCACHE, 1 }
129 #define PUFFSMOPT_ALLOPS { "allops", 0, PUFFS_KFLAG_ALLOPS, 1 }
130
131 /* libpuffs */
132 #define PUFFSMOPT_DUMP { "dump", 0, PUFFS_FLAG_OPDUMP, 1 }
133
134 #define PUFFSMOPT_STD \
135 PUFFSMOPT_CACHE, \
136 PUFFSMOPT_ALLOPS, \
137 PUFFSMOPT_DUMP
138
139 extern const struct mntopt puffsmopts[]; /* puffs.c */
140
141 /* callbacks for operations */
142 struct puffs_ops {
143 int (*puffs_fs_unmount)(struct puffs_cc *, int, pid_t);
144 int (*puffs_fs_statvfs)(struct puffs_cc *,
145 struct statvfs *, pid_t);
146 int (*puffs_fs_sync)(struct puffs_cc *, int,
147 const struct puffs_cred *, pid_t);
148 void (*puffs_fs_suspend)(struct puffs_cc *, int);
149
150 int (*puffs_node_lookup)(struct puffs_cc *,
151 void *, void **, enum vtype *, voff_t *, dev_t *,
152 const struct puffs_cn *);
153 int (*puffs_node_create)(struct puffs_cc *,
154 void *, void **, const struct puffs_cn *, const struct vattr *);
155 int (*puffs_node_mknod)(struct puffs_cc *,
156 void *, void **, const struct puffs_cn *, const struct vattr *);
157 int (*puffs_node_open)(struct puffs_cc *,
158 void *, int, const struct puffs_cred *, pid_t);
159 int (*puffs_node_close)(struct puffs_cc *,
160 void *, int, const struct puffs_cred *, pid_t);
161 int (*puffs_node_access)(struct puffs_cc *,
162 void *, int, const struct puffs_cred *, pid_t);
163 int (*puffs_node_getattr)(struct puffs_cc *,
164 void *, struct vattr *, const struct puffs_cred *, pid_t);
165 int (*puffs_node_setattr)(struct puffs_cc *,
166 void *, const struct vattr *, const struct puffs_cred *, pid_t);
167 int (*puffs_node_poll)(struct puffs_cc *,
168 void *, struct puffs_vnreq_poll *);
169 int (*puffs_node_mmap)(struct puffs_cc *,
170 void *, int, const struct puffs_cred *, pid_t);
171 int (*puffs_node_fsync)(struct puffs_cc *,
172 void *, const struct puffs_cred *, int, off_t, off_t, pid_t);
173 int (*puffs_node_seek)(struct puffs_cc *,
174 void *, off_t, off_t, const struct puffs_cred *);
175 int (*puffs_node_remove)(struct puffs_cc *,
176 void *, void *, const struct puffs_cn *);
177 int (*puffs_node_link)(struct puffs_cc *,
178 void *, void *, const struct puffs_cn *);
179 int (*puffs_node_rename)(struct puffs_cc *,
180 void *, void *, const struct puffs_cn *, void *, void *,
181 const struct puffs_cn *);
182 int (*puffs_node_mkdir)(struct puffs_cc *,
183 void *, void **, const struct puffs_cn *, const struct vattr *);
184 int (*puffs_node_rmdir)(struct puffs_cc *,
185 void *, void *, const struct puffs_cn *);
186 int (*puffs_node_symlink)(struct puffs_cc *,
187 void *, void **, const struct puffs_cn *, const struct vattr *,
188 const char *);
189 int (*puffs_node_readdir)(struct puffs_cc *,
190 void *, struct dirent *, const struct puffs_cred *,
191 off_t *, size_t *);
192 int (*puffs_node_readlink)(struct puffs_cc *,
193 void *, const struct puffs_cred *, char *, size_t *);
194 int (*puffs_node_reclaim)(struct puffs_cc *,
195 void *, pid_t);
196 int (*puffs_node_inactive)(struct puffs_cc *,
197 void *, pid_t, int *);
198 int (*puffs_node_print)(struct puffs_cc *,
199 void *);
200 int (*puffs_node_pathconf)(struct puffs_cc *,
201 void *, int, int *);
202 int (*puffs_node_advlock)(struct puffs_cc *,
203 void *, void *, int, struct flock *, int);
204 int (*puffs_node_getextattr)(struct puffs_cc *,
205 void *, struct puffs_vnreq_getextattr *);
206 int (*puffs_node_setextattr)(struct puffs_cc *,
207 void *, struct puffs_vnreq_setextattr *);
208 int (*puffs_node_listextattr)(struct puffs_cc *,
209 void *, struct puffs_vnreq_listextattr *);
210 int (*puffs_node_read)(struct puffs_cc *, void *,
211 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);
212 int (*puffs_node_write)(struct puffs_cc *, void *,
213 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);
214
215 int (*puffs_cache_write)(struct puffs_usermount *,
216 void *, size_t, struct puffs_cacherun *);
217 };
218
219 typedef int (*pu_pathbuild_fn)(struct puffs_usermount *,
220 const struct puffs_pathobj *,
221 const struct puffs_pathobj *, size_t,
222 struct puffs_pathobj *);
223 typedef int (*pu_pathtransform_fn)(struct puffs_usermount *,
224 const struct puffs_pathobj *,
225 const struct puffs_cn *,
226 struct puffs_pathobj *);
227 typedef int (*pu_pathcmp_fn)(struct puffs_usermount *, struct puffs_pathobj *,
228 struct puffs_pathobj *, size_t, int);
229 typedef void (*pu_pathfree_fn)(struct puffs_usermount *,
230 struct puffs_pathobj *);
231 typedef int (*pu_namemod_fn)(struct puffs_usermount *,
232 struct puffs_pathobj *, struct puffs_cn *);
233
234 struct puffs_usermount {
235 struct puffs_ops pu_ops;
236
237 int pu_fd;
238 uint32_t pu_flags;
239 size_t pu_maxreqlen;
240 size_t pu_cc_stacksize;
241
242 int pu_state;
243
244 struct puffs_node *pu_pn_root;
245
246 LIST_HEAD(, puffs_node) pu_pnodelst;
247
248 struct puffs_node *(*pu_cmap)(void *);
249
250 pu_pathbuild_fn pu_pathbuild;
251 pu_pathtransform_fn pu_pathtransform;
252 pu_pathcmp_fn pu_pathcmp;
253 pu_pathfree_fn pu_pathfree;
254 pu_namemod_fn pu_namemod;
255
256 void *pu_privdata;
257 };
258
259 enum {
260 PUFFS_STATE_MOUNTING, PUFFS_STATE_RUNNING,
261 PUFFS_STATE_UNMOUNTING, PUFFS_STATE_UNMOUNTED
262 };
263
264 #define PUFFS_FLAG_KERN(a) ((a) & 0x0000ffff)
265 #define PUFFS_FLAG_LIB(a) ((a) & 0xffff0000)
266
267 #define PUFFS_FLAG_BUILDPATH 0x80000000 /* node paths in pnode */
268 #define PUFFS_FLAG_OPDUMP 0x40000000 /* dump all operations */
269
270 /* blocking mode argument */
271 #define PUFFSDEV_BLOCK 0
272 #define PUFFSDEV_NONBLOCK 1
273
274 /* mainloop flags */
275 #define PUFFSLOOP_NODAEMON 0x01
276
277 #define DENT_DOT 0
278 #define DENT_DOTDOT 1
279 #define DENT_ADJ(a) ((a)-2) /* nth request means dir's n-2th */
280
281
282 /*
283 * protos
284 */
285
286 #define PUFFSOP_PROTOS(fsname) \
287 int fsname##_fs_mount(struct puffs_usermount *, void **, \
288 struct statvfs *); \
289 int fsname##_fs_unmount(struct puffs_cc *, int, pid_t); \
290 int fsname##_fs_statvfs(struct puffs_cc *, \
291 struct statvfs *, pid_t); \
292 int fsname##_fs_sync(struct puffs_cc *, int, \
293 const struct puffs_cred *cred, pid_t); \
294 void fsname##_fs_suspend(struct puffs_cc *, int); \
295 \
296 int fsname##_node_lookup(struct puffs_cc *, \
297 void *, void **, enum vtype *, voff_t *, dev_t *, \
298 const struct puffs_cn *); \
299 int fsname##_node_create(struct puffs_cc *, \
300 void *, void **, const struct puffs_cn *, \
301 const struct vattr *); \
302 int fsname##_node_mknod(struct puffs_cc *, \
303 void *, void **, const struct puffs_cn *, \
304 const struct vattr *); \
305 int fsname##_node_open(struct puffs_cc *, \
306 void *, int, const struct puffs_cred *, pid_t); \
307 int fsname##_node_close(struct puffs_cc *, \
308 void *, int, const struct puffs_cred *, pid_t); \
309 int fsname##_node_access(struct puffs_cc *, \
310 void *, int, const struct puffs_cred *, pid_t); \
311 int fsname##_node_getattr(struct puffs_cc *, \
312 void *, struct vattr *, const struct puffs_cred *, pid_t); \
313 int fsname##_node_setattr(struct puffs_cc *, \
314 void *, const struct vattr *, const struct puffs_cred *, \
315 pid_t); \
316 int fsname##_node_poll(struct puffs_cc *, \
317 void *, struct puffs_vnreq_poll *); \
318 int fsname##_node_mmap(struct puffs_cc *, \
319 void *, int, const struct puffs_cred *, pid_t); \
320 int fsname##_node_fsync(struct puffs_cc *, \
321 void *, const struct puffs_cred *, int, off_t, off_t, \
322 pid_t); \
323 int fsname##_node_seek(struct puffs_cc *, \
324 void *, off_t, off_t, const struct puffs_cred *); \
325 int fsname##_node_remove(struct puffs_cc *, \
326 void *, void *, const struct puffs_cn *); \
327 int fsname##_node_link(struct puffs_cc *, \
328 void *, void *, const struct puffs_cn *); \
329 int fsname##_node_rename(struct puffs_cc *, \
330 void *, void *, const struct puffs_cn *, void *, void *, \
331 const struct puffs_cn *); \
332 int fsname##_node_mkdir(struct puffs_cc *, \
333 void *, void **, const struct puffs_cn *, \
334 const struct vattr *); \
335 int fsname##_node_rmdir(struct puffs_cc *, \
336 void *, void *, const struct puffs_cn *); \
337 int fsname##_node_symlink(struct puffs_cc *, \
338 void *, void **, const struct puffs_cn *, \
339 const struct vattr *, const char *); \
340 int fsname##_node_readdir(struct puffs_cc *, \
341 void *, struct dirent *, const struct puffs_cred *, \
342 off_t *, size_t *); \
343 int fsname##_node_readlink(struct puffs_cc *, \
344 void *, const struct puffs_cred *, char *, size_t *); \
345 int fsname##_node_reclaim(struct puffs_cc *, \
346 void *, pid_t); \
347 int fsname##_node_inactive(struct puffs_cc *, \
348 void *, pid_t, int *); \
349 int fsname##_node_print(struct puffs_cc *, \
350 void *); \
351 int fsname##_node_pathconf(struct puffs_cc *, \
352 void *, int, int *); \
353 int fsname##_node_advlock(struct puffs_cc *, \
354 void *, void *, int, struct flock *, int); \
355 int fsname##_node_getextattr(struct puffs_cc *, \
356 void *, struct puffs_vnreq_getextattr *); \
357 int fsname##_node_setextattr(struct puffs_cc *, \
358 void *, struct puffs_vnreq_setextattr *); \
359 int fsname##_node_listextattr(struct puffs_cc *, \
360 void *, struct puffs_vnreq_listextattr *); \
361 int fsname##_node_read(struct puffs_cc *, void *, \
362 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\
363 int fsname##_node_write(struct puffs_cc *, void *, \
364 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\
365 \
366 int fsname##_cache_write(struct puffs_usermount *, void *, \
367 size_t, struct puffs_cacheinfo *);
368
369 #define PUFFSOP_INIT(ops) \
370 ops = malloc(sizeof(struct puffs_ops)); \
371 memset(ops, 0, sizeof(struct puffs_ops))
372 #define PUFFSOP_SET(ops, fsname, fsornode, opname) \
373 (ops)->puffs_##fsornode##_##opname = fsname##_##fsornode##_##opname
374 #define PUFFSOP_SETFSNOP(ops, opname) \
375 (ops)->puffs_fs_##opname = puffs_fsnop_##opname
376
377 #define PUFFS_DEVEL_LIBVERSION 10
378 #define puffs_mount(a,b,c,d,e,f,g) \
379 _puffs_mount(PUFFS_DEVEL_LIBVERSION,a,b,c,d,e,f,g)
380
381
382 #define PNPATH(pnode) ((pnode)->pn_po.po_path)
383 #define PNPLEN(pnode) ((pnode)->pn_po.po_len)
384 #define PCNPATH(pcnode) ((pcnode)->pcn_po_full.po_path)
385 #define PCNPLEN(pcnode) ((pcnode)->pcn_po_full.po_len)
386 #define PCNISDOTDOT(pcnode) \
387 ((pcnode)->pcn_namelen == 2 && strcmp((pcnode)->pcn_name, "..") == 0)
388
389 __BEGIN_DECLS
390
391 struct puffs_usermount *_puffs_mount(int, struct puffs_ops *, const char *, int,
392 const char *, void *, uint32_t, size_t);
393 int puffs_start(struct puffs_usermount *, void *, struct statvfs *);
394 int puffs_exit(struct puffs_usermount *, int);
395 int puffs_mainloop(struct puffs_usermount *, int);
396
397
398 int puffs_getselectable(struct puffs_usermount *);
399 int puffs_setblockingmode(struct puffs_usermount *, int);
400 int puffs_getstate(struct puffs_usermount *);
401 void puffs_setstacksize(struct puffs_usermount *, size_t);
402
403 struct puffs_pathobj *puffs_getrootpathobj(struct puffs_usermount *);
404
405 struct puffs_node *puffs_pn_new(struct puffs_usermount *, void *);
406 void puffs_pn_put(struct puffs_node *);
407
408 typedef void * (*puffs_nodewalk_fn)(struct puffs_usermount *,
409 struct puffs_node *, void *);
410 void *puffs_pn_nodewalk(struct puffs_usermount *,
411 puffs_nodewalk_fn, void *);
412
413 void puffs_setvattr(struct vattr *, const struct vattr *);
414 void puffs_vattr_null(struct vattr *);
415
416 /*
417 * generic/dummy routines applicable for some file systems
418 */
419 int puffs_fsnop_unmount(struct puffs_cc *, int, pid_t);
420 int puffs_fsnop_statvfs(struct puffs_cc *, struct statvfs *, pid_t);
421 void puffs_zerostatvfs(struct statvfs *);
422 int puffs_fsnop_sync(struct puffs_cc *, int waitfor,
423 const struct puffs_cred *, pid_t);
424 int puffs_genfs_node_reclaim(struct puffs_cc *, void *, pid_t);
425
426 /*
427 * Subroutine stuff
428 */
429
430 int puffs_gendotdent(struct dirent **, ino_t, int, size_t *);
431 int puffs_nextdent(struct dirent **, const char *, ino_t,
432 uint8_t, size_t *);
433 int puffs_vtype2dt(enum vtype);
434 enum vtype puffs_mode2vt(mode_t);
435 void puffs_stat2vattr(struct vattr *va, const struct stat *);
436 mode_t puffs_addvtype2mode(mode_t, enum vtype);
437
438
439 /*
440 * credentials & permissions
441 */
442
443 /* Credential fetch */
444 int puffs_cred_getuid(const struct puffs_cred *pcr, uid_t *);
445 int puffs_cred_getgid(const struct puffs_cred *pcr, gid_t *);
446 int puffs_cred_getgroups(const struct puffs_cred *pcr, gid_t *, short *);
447
448 /* Credential check */
449 int puffs_cred_isuid(const struct puffs_cred *, uid_t);
450 int puffs_cred_hasgroup(const struct puffs_cred *, gid_t);
451 int puffs_cred_isregular(const struct puffs_cred *);
452 int puffs_cred_iskernel(const struct puffs_cred *);
453 int puffs_cred_isfs(const struct puffs_cred *);
454 int puffs_cred_isjuggernaut(const struct puffs_cred *);
455
456 /* misc */
457 int puffs_access(enum vtype, mode_t, uid_t, gid_t, mode_t,
458 const struct puffs_cred *);
459 int puffs_access_chown(const struct puffs_cred *, uid_t, gid_t,
460 uid_t, gid_t);
461 int puffs_access_chmod(const struct puffs_cred *, uid_t, gid_t,
462 enum vtype, mode_t);
463 int puffs_access_times(const struct puffs_cred *, uid_t, gid_t,
464 mode_t, int);
465
466
467 /*
468 * Requests
469 */
470
471 struct puffs_getreq *puffs_req_makeget(struct puffs_usermount *,
472 size_t, int);
473 int puffs_req_loadget(struct puffs_getreq *);
474 struct puffs_req *puffs_req_get(struct puffs_getreq *);
475 int puffs_req_remainingget(struct puffs_getreq *);
476 void puffs_req_setmaxget(struct puffs_getreq *, int);
477 void puffs_req_destroyget(struct puffs_getreq *);
478
479 struct puffs_putreq *puffs_req_makeput(struct puffs_usermount *);
480 void puffs_req_put(struct puffs_putreq *,struct puffs_req *);
481 void puffs_req_putcc(struct puffs_putreq *,struct puffs_cc*);
482 int puffs_req_putput(struct puffs_putreq *);
483 void puffs_req_resetput(struct puffs_putreq *);
484 void puffs_req_destroyput(struct puffs_putreq *);
485
486 int puffs_req_handle(struct puffs_usermount *,
487 struct puffs_getreq *,
488 struct puffs_putreq *, int);
489
490 /*
491 * Call Context interfaces relevant for user.
492 */
493
494 void puffs_cc_yield(struct puffs_cc *);
495 void puffs_cc_continue(struct puffs_cc *);
496 struct puffs_usermount *puffs_cc_getusermount(struct puffs_cc *);
497 struct puffs_cc *puffs_cc_create(struct puffs_usermount *);
498 void puffs_cc_destroy(struct puffs_cc *);
499
500 /*
501 * Execute or continue a request
502 */
503
504 int puffs_dopreq(struct puffs_usermount *, struct puffs_req *,
505 struct puffs_putreq *);
506 int puffs_docc(struct puffs_cc *, struct puffs_putreq *);
507
508 /*
509 * Flushing / invalidation routines
510 */
511
512 int puffs_inval_namecache_dir(struct puffs_usermount *, void *);
513 int puffs_inval_namecache_all(struct puffs_usermount *);
514
515 int puffs_inval_pagecache_node(struct puffs_usermount *, void *);
516
517 /*
518 * Path constructicons
519 */
520
521 int puffs_stdpath_buildpath(struct puffs_usermount *,
522 const struct puffs_pathobj *,
523 const struct puffs_pathobj *, size_t,
524 struct puffs_pathobj *);
525 int puffs_stdpath_cmppath(struct puffs_usermount *, struct puffs_pathobj *,
526 struct puffs_pathobj *, size_t, int);
527 void puffs_stdpath_freepath(struct puffs_usermount *,struct puffs_pathobj *);
528
529 void *puffs_path_walkcmp(struct puffs_usermount *,
530 struct puffs_node *, void *);
531 void *puffs_path_prefixadj(struct puffs_usermount *,
532 struct puffs_node *, void *);
533 int puffs_path_pcnbuild(struct puffs_usermount *,
534 struct puffs_cn *, void *);
535
536 void puffs_set_pathbuild(struct puffs_usermount *, pu_pathbuild_fn);
537 void puffs_set_pathtransform(struct puffs_usermount *, pu_pathtransform_fn);
538 void puffs_set_pathcmp(struct puffs_usermount *, pu_pathcmp_fn);
539 void puffs_set_pathfree(struct puffs_usermount *, pu_pathfree_fn);
540 void puffs_set_namemod(struct puffs_usermount *, pu_namemod_fn);
541
542 /*
543 * Suspension
544 */
545
546 int puffs_fs_suspend(struct puffs_usermount *);
547
548 __END_DECLS
549
550 #endif /* _PUFFS_H_ */
551