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usched: Allow process to change self cpu affinity
[dragonfly.git] / lib / libpuffs / puffs.h
blob2a7bc6602b2c3c3e211f8a45eb74da76362ccccb
1 /* $NetBSD: puffs.h,v 1.118 2011/07/04 08:07:30 manu Exp $ */
2
3 /*
4 * Copyright (c) 2005, 2006, 2007 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 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
20 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #ifndef _PUFFS_H_
33 #define _PUFFS_H_
34
35 #include <sys/param.h>
36 #include <sys/types.h>
37 #include <sys/mount.h>
38 #include <sys/namei.h>
39 #include <sys/stat.h>
40 #include <sys/statvfs.h>
41 #include <sys/time.h>
42 #include <sys/vnode.h>
43
44 #include <vfs/puffs/puffs_msgif.h>
45
46 #include <mntopts.h>
47 #include <stdbool.h>
48 #include <string.h>
49
50 /* XXXDF */
51 #define _PATH_PUFFS "/dev/putter"
52 #define MOUNT_PUFFS "puffs" /* Pass-to-Userspace filesystem */
53
54 /* forwards */
55 struct puffs_cc;
56
57 struct puffs_getreq;
58 struct puffs_cred;
59 struct puffs_newinfo;
60
61 /* paths */
62 struct puffs_pathobj {
63 void *po_path;
64 size_t po_len;
65 uint32_t po_hash;
66 };
67
68 /* for prefix rename */
69 struct puffs_pathinfo {
70 struct puffs_pathobj *pi_old;
71 struct puffs_pathobj *pi_new;
72 };
73
74 /* describes one segment cached in the kernel */
75 struct puffs_kcache {
76 off_t pkc_start;
77 off_t pkc_end;
78
79 LIST_ENTRY(puffs_kcache) pkc_entries;
80 };
81
82 /* XXX: might disappear from here into a private header */
83 struct puffs_node {
84 off_t pn_size;
85 int pn_flags;
86 struct vattr pn_va;
87
88 void *pn_data; /* private data */
89
90 struct puffs_pathobj pn_po; /* PUFFS_FLAG_BUILDPATH */
91
92 struct puffs_usermount *pn_mnt;
93 LIST_ENTRY(puffs_node) pn_entries;
94
95 LIST_HEAD(,puffs_kcache)pn_cacheinfo; /* PUFFS_KFLAG_CACHE */
96
97 void *pn_spare[4];
98 };
99 #define PUFFS_NODE_REMOVED 0x01 /* not on entry list */
100
101
102 struct puffs_usermount;
103
104 /*
105 * megaXXX: these are values from inside _KERNEL
106 * need to work on the translation for ALL the necessary values.
107 */
108 #define PUFFS_VNOVAL (-1)
109
110 #define PUFFS_IO_APPEND 0x020
111 #define PUFFS_IO_NDELAY 0x100
112
113 #define PUFFS_VEXEC 01
114 #define PUFFS_VWRITE 02
115 #define PUFFS_VREAD 04
116
117 #define PUFFS_FSYNC_DATAONLY 0x0002
118 #define PUFFS_FSYNC_CACHE 0x0100
119
120 #define PUFFS_EXTATTR_LIST_LENPREFIX 1
121 /*
122 * Magic constants
123 */
124 #define PUFFS_CC_STACKSHIFT_DEFAULT 18
125
126 struct puffs_cn {
127 struct puffs_kcn *pcn_pkcnp; /* kernel input */
128 struct puffs_cred *pcn_cred; /* cred used for lookup */
129
130 struct puffs_pathobj pcn_po_full; /* PUFFS_FLAG_BUILDPATH */
131 };
132 #define pcn_name pcn_pkcnp->pkcn_name
133 #define pcn_namelen pcn_pkcnp->pkcn_namelen
134
135 /*
136 * Puffs options to mount
137 */
138 /* kernel */
139 #define PUFFSMOPT_NAMECACHE { "namecache", 1, PUFFS_KFLAG_NOCACHE_NAME, 1 }
140 #define PUFFSMOPT_PAGECACHE { "pagecache", 1, PUFFS_KFLAG_NOCACHE_PAGE, 1 }
141 #define PUFFSMOPT_ATTRCACHE { "attrcache", 1, PUFFS_KFLAG_NOCACHE_ATTR, 1 }
142 #define PUFFSMOPT_CACHE { "cache", 1, PUFFS_KFLAG_NOCACHE, 1 }
143 #define PUFFSMOPT_ALLOPS { "allops", 0, PUFFS_KFLAG_ALLOPS, 1 }
144
145 /* libpuffs */
146 #define PUFFSMOPT_DUMP { "dump", 0, PUFFS_FLAG_OPDUMP, 1 }
147
148 #define PUFFSMOPT_STD \
149 PUFFSMOPT_NAMECACHE, \
150 PUFFSMOPT_PAGECACHE, \
151 PUFFSMOPT_ATTRCACHE, \
152 PUFFSMOPT_CACHE, \
153 PUFFSMOPT_ALLOPS, \
154 PUFFSMOPT_DUMP
155
156 extern const struct mntopt puffsmopts[]; /* puffs.c */
157
158 /* callbacks for operations */
159 struct puffs_ops {
160 int (*puffs_fs_unmount)(struct puffs_usermount *, int);
161 int (*puffs_fs_statvfs)(struct puffs_usermount *, struct statvfs *);
162 int (*puffs_fs_sync)(struct puffs_usermount *, int);
163 int (*puffs_fs_fhtonode)(struct puffs_usermount *, void *, size_t,
164 struct puffs_newinfo *);
165 int (*puffs_fs_nodetofh)(struct puffs_usermount *, puffs_cookie_t,
166 void *, size_t *);
167 int (*puffs_fs_extattrctl)(struct puffs_usermount *, int,
168 puffs_cookie_t, int, int, const char *);
169
170 int (*puffs_node_lookup)(struct puffs_usermount *,
171 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *);
172 int (*puffs_node_lookupdotdot)(struct puffs_usermount *,
173 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *);
174 int (*puffs_node_create)(struct puffs_usermount *,
175 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
176 const struct vattr *);
177 int (*puffs_node_mknod)(struct puffs_usermount *,
178 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
179 const struct vattr *);
180 int (*puffs_node_open)(struct puffs_usermount *,
181 puffs_cookie_t, int, const struct puffs_cred *);
182 int (*puffs_node_close)(struct puffs_usermount *,
183 puffs_cookie_t, int);
184 int (*puffs_node_access)(struct puffs_usermount *,
185 puffs_cookie_t, int, const struct puffs_cred *);
186 int (*puffs_node_getattr)(struct puffs_usermount *,
187 puffs_cookie_t, struct vattr *, const struct puffs_cred *);
188 int (*puffs_node_setattr)(struct puffs_usermount *,
189 puffs_cookie_t, const struct vattr *, const struct puffs_cred *);
190 int (*puffs_node_poll)(struct puffs_usermount *, puffs_cookie_t, int *);
191 int (*puffs_node_mmap)(struct puffs_usermount *,
192 puffs_cookie_t, vm_prot_t, const struct puffs_cred *);
193 int (*puffs_node_fsync)(struct puffs_usermount *,
194 puffs_cookie_t, int);
195 int (*puffs_node_seek)(struct puffs_usermount *,
196 puffs_cookie_t, off_t, off_t, const struct puffs_cred *);
197 int (*puffs_node_remove)(struct puffs_usermount *,
198 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
199 int (*puffs_node_link)(struct puffs_usermount *,
200 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
201 int (*puffs_node_rename)(struct puffs_usermount *,
202 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *,
203 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
204 int (*puffs_node_mkdir)(struct puffs_usermount *,
205 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
206 const struct vattr *);
207 int (*puffs_node_rmdir)(struct puffs_usermount *,
208 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
209 int (*puffs_node_symlink)(struct puffs_usermount *,
210 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
211 const struct vattr *,
212 const char *);
213 int (*puffs_node_readdir)(struct puffs_usermount *,
214 puffs_cookie_t, struct dirent *, off_t *, size_t *,
215 const struct puffs_cred *, int *, off_t *, size_t *);
216 int (*puffs_node_readlink)(struct puffs_usermount *,
217 puffs_cookie_t, const struct puffs_cred *, char *, size_t *);
218 int (*puffs_node_reclaim)(struct puffs_usermount *, puffs_cookie_t);
219 int (*puffs_node_inactive)(struct puffs_usermount *, puffs_cookie_t);
220 int (*puffs_node_print)(struct puffs_usermount *, puffs_cookie_t);
221 int (*puffs_node_pathconf)(struct puffs_usermount *,
222 puffs_cookie_t, int, register_t *);
223 int (*puffs_node_advlock)(struct puffs_usermount *,
224 puffs_cookie_t, void *, int, struct flock *, int);
225 int (*puffs_node_read)(struct puffs_usermount *, puffs_cookie_t,
226 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);
227 int (*puffs_node_write)(struct puffs_usermount *, puffs_cookie_t,
228 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);
229 int (*puffs_node_abortop)(struct puffs_usermount *, puffs_cookie_t,
230 const struct puffs_cn *);
231 int (*puffs_node_getextattr)(struct puffs_usermount *, puffs_cookie_t,
232 int, const char *, size_t *, uint8_t *, size_t *,
233 const struct puffs_cred *);
234 int (*puffs_node_setextattr)(struct puffs_usermount *, puffs_cookie_t,
235 int, const char *, uint8_t *, size_t *, const struct puffs_cred *);
236 int (*puffs_node_listextattr)(struct puffs_usermount *, puffs_cookie_t,
237 int, size_t *, uint8_t *, size_t *, int, const struct puffs_cred *);
238 int (*puffs_node_deleteextattr)(struct puffs_usermount *,
239 puffs_cookie_t, int, const char *, const struct puffs_cred *);
240
241 void *puffs_ops_spare[32];
242 };
243
244 typedef int (*pu_pathbuild_fn)(struct puffs_usermount *,
245 const struct puffs_pathobj *,
246 const struct puffs_pathobj *, size_t,
247 struct puffs_pathobj *);
248 typedef int (*pu_pathtransform_fn)(struct puffs_usermount *,
249 const struct puffs_pathobj *,
250 const struct puffs_cn *,
251 struct puffs_pathobj *);
252 typedef int (*pu_pathcmp_fn)(struct puffs_usermount *, struct puffs_pathobj *,
253 struct puffs_pathobj *, size_t, int);
254 typedef void (*pu_pathfree_fn)(struct puffs_usermount *,
255 struct puffs_pathobj *);
256 typedef int (*pu_namemod_fn)(struct puffs_usermount *,
257 struct puffs_pathobj *, struct puffs_cn *);
258
259 typedef void (*pu_errnotify_fn)(struct puffs_usermount *,
260 uint8_t, int, const char *, puffs_cookie_t);
261
262 typedef void (*pu_prepost_fn)(struct puffs_usermount *);
263
264 typedef struct puffs_node *(*pu_cmap_fn)(struct puffs_usermount *,
265 puffs_cookie_t);
266
267 enum {
268 PUFFS_STATE_BEFOREMOUNT, PUFFS_STATE_RUNNING,
269 PUFFS_STATE_UNMOUNTING, PUFFS_STATE_UNMOUNTED
270 };
271
272 #define PUFFS_FLAG_BUILDPATH 0x80000000 /* node paths in pnode */
273 #define PUFFS_FLAG_OPDUMP 0x40000000 /* dump all operations */
274 #define PUFFS_FLAG_HASHPATH 0x20000000 /* speedup: hash paths */
275 #define PUFFS_FLAG_MASK 0xe0000000
276
277 #define PUFFS_FLAG_KERN(a) ((a) & PUFFS_KFLAG_MASK)
278 #define PUFFS_FLAG_LIB(a) ((a) & PUFFS_FLAG_MASK)
279
280 /* blocking mode argument */
281 #define PUFFSDEV_BLOCK 0
282 #define PUFFSDEV_NONBLOCK 1
283
284 #define PUFFS_STACKSIZE_DEFAULT (1<<PUFFS_CC_STACKSHIFT_DEFAULT)
285 #define PUFFS_STACKSIZE_MIN ((size_t)-1)
286
287 #define DENT_DOT 0
288 #define DENT_DOTDOT 1
289 #define DENT_ADJ(a) ((a)-2) /* nth request means dir's n-2th */
290
291
292 /*
293 * protos
294 */
295
296 #define PUFFSOP_PROTOS(fsname) \
297 int fsname##_fs_unmount(struct puffs_usermount *, int); \
298 int fsname##_fs_statvfs(struct puffs_usermount *, \
299 struct statvfs *); \
300 int fsname##_fs_sync(struct puffs_usermount *, int, \
301 const struct puffs_cred *cred); \
302 int fsname##_fs_fhtonode(struct puffs_usermount *, void *, \
303 size_t, struct puffs_newinfo *); \
304 int fsname##_fs_nodetofh(struct puffs_usermount *, \
305 puffs_cookie_t, void *, size_t *); \
306 int fsname##_fs_extattrctl(struct puffs_usermount *, int, \
307 puffs_cookie_t, int, int, const char *); \
308 \
309 int fsname##_node_lookup(struct puffs_usermount *, \
310 puffs_cookie_t, struct puffs_newinfo *, \
311 const struct puffs_cn *); \
312 int fsname##_node_lookupdotdot(struct puffs_usermount *, \
313 puffs_cookie_t, struct puffs_newinfo *, \
314 const struct puffs_cn *); \
315 int fsname##_node_create(struct puffs_usermount *, \
316 puffs_cookie_t, struct puffs_newinfo *, \
317 const struct puffs_cn *, const struct vattr *); \
318 int fsname##_node_mknod(struct puffs_usermount *, \
319 puffs_cookie_t, struct puffs_newinfo *, \
320 const struct puffs_cn *, const struct vattr *); \
321 int fsname##_node_open(struct puffs_usermount *, \
322 puffs_cookie_t, int, const struct puffs_cred *); \
323 int fsname##_node_close(struct puffs_usermount *, \
324 puffs_cookie_t, int, const struct puffs_cred *); \
325 int fsname##_node_access(struct puffs_usermount *, \
326 puffs_cookie_t, int, const struct puffs_cred *); \
327 int fsname##_node_getattr(struct puffs_usermount *, \
328 puffs_cookie_t, struct vattr *, const struct puffs_cred *); \
329 int fsname##_node_setattr(struct puffs_usermount *, \
330 puffs_cookie_t, const struct vattr *, \
331 const struct puffs_cred *); \
332 int fsname##_node_poll(struct puffs_usermount *, \
333 puffs_cookie_t, int *); \
334 int fsname##_node_mmap(struct puffs_usermount *, \
335 puffs_cookie_t, vm_prot_t, const struct puffs_cred *); \
336 int fsname##_node_fsync(struct puffs_usermount *, \
337 puffs_cookie_t,int); \
338 int fsname##_node_seek(struct puffs_usermount *, \
339 puffs_cookie_t, off_t, off_t, const struct puffs_cred *); \
340 int fsname##_node_remove(struct puffs_usermount *, \
341 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); \
342 int fsname##_node_link(struct puffs_usermount *, \
343 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); \
344 int fsname##_node_rename(struct puffs_usermount *, \
345 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *, \
346 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); \
347 int fsname##_node_mkdir(struct puffs_usermount *, \
348 puffs_cookie_t, struct puffs_newinfo *, \
349 const struct puffs_cn *, const struct vattr *); \
350 int fsname##_node_rmdir(struct puffs_usermount *, \
351 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); \
352 int fsname##_node_symlink(struct puffs_usermount *, \
353 puffs_cookie_t, struct puffs_newinfo *, \
354 const struct puffs_cn *, const struct vattr *, \
355 const char *); \
356 int fsname##_node_readdir(struct puffs_usermount *, \
357 puffs_cookie_t, struct dirent *, off_t *, size_t *, \
358 const struct puffs_cred *, int *, off_t *, size_t *); \
359 int fsname##_node_readlink(struct puffs_usermount *, \
360 puffs_cookie_t, const struct puffs_cred *, char *, \
361 size_t *); \
362 int fsname##_node_reclaim(struct puffs_usermount *, \
363 puffs_cookie_t); \
364 int fsname##_node_inactive(struct puffs_usermount *, \
365 puffs_cookie_t); \
366 int fsname##_node_print(struct puffs_usermount *, \
367 puffs_cookie_t); \
368 int fsname##_node_pathconf(struct puffs_usermount *, \
369 puffs_cookie_t, int, register_t *); \
370 int fsname##_node_advlock(struct puffs_usermount *, \
371 puffs_cookie_t, void *, int, struct flock *, int); \
372 int fsname##_node_read(struct puffs_usermount *, puffs_cookie_t,\
373 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\
374 int fsname##_node_write(struct puffs_usermount *, \
375 puffs_cookie_t, uint8_t *, off_t, size_t *, \
376 const struct puffs_cred *, int); \
377 int fsname##_node_abortop(struct puffs_usermount *, \
378 puffs_cookie_t, const struct puffs_cn *); \
379 int fsname##_node_getextattr(struct puffs_usermount *, \
380 puffs_cookie_t, int, const char *, size_t *, uint8_t *, \
381 size_t *, const struct puffs_cred *); \
382 int fsname##_node_setextattr(struct puffs_usermount *, \
383 puffs_cookie_t, int, const char *, uint8_t *, size_t *, \
384 const struct puffs_cred *); \
385 int fsname##_node_listextattr(struct puffs_usermount *, \
386 puffs_cookie_t, int, size_t *, uint8_t *, size_t *, \
387 int, const struct puffs_cred *); \
388 int fsname##_node_deleteextattr(struct puffs_usermount *, \
389 puffs_cookie_t, int, const char *, \
390 const struct puffs_cred *);
391
392 #define PUFFSOP_INIT(ops) \
393 ops = malloc(sizeof(struct puffs_ops)); \
394 memset(ops, 0, sizeof(struct puffs_ops))
395 #define PUFFSOP_SET(ops, fsname, fsornode, opname) \
396 (ops)->puffs_##fsornode##_##opname = fsname##_##fsornode##_##opname
397 #define PUFFSOP_SETFSNOP(ops, opname) \
398 (ops)->puffs_fs_##opname = puffs_fsnop_##opname
399
400 PUFFSOP_PROTOS(puffs_null) /* XXX */
401
402 #define PNPATH(pnode) ((pnode)->pn_po.po_path)
403 #define PNPLEN(pnode) ((pnode)->pn_po.po_len)
404 #define PCNPATH(pcnode) ((pcnode)->pcn_po_full.po_path)
405 #define PCNPLEN(pcnode) ((pcnode)->pcn_po_full.po_len)
406
407 #define PUFFS_STORE_DCOOKIE(cp, ncp, off) \
408 if (cp) { \
409 *((cp)++) = off; \
410 (*(ncp))++; \
411 }
412
413 /* mainloop */
414 typedef void (*puffs_ml_loop_fn)(struct puffs_usermount *);
415
416 /* framebuf stuff */
417 struct puffs_framebuf;
418 typedef int (*puffs_framev_readframe_fn)(struct puffs_usermount *,
419 struct puffs_framebuf *,
420 int, int *);
421 typedef int (*puffs_framev_writeframe_fn)(struct puffs_usermount *,
422 struct puffs_framebuf *,
423 int, int *);
424 typedef int (*puffs_framev_cmpframe_fn)(struct puffs_usermount *,
425 struct puffs_framebuf *,
426 struct puffs_framebuf *,
427 int *);
428 typedef void (*puffs_framev_fdnotify_fn)(struct puffs_usermount *, int, int);
429 typedef void (*puffs_framev_gotframe_fn)(struct puffs_usermount *,
430 struct puffs_framebuf *);
431 typedef void (*puffs_framev_cb)(struct puffs_usermount *,
432 struct puffs_framebuf *,
433 void *, int);
434 #define PUFFS_FBIO_READ 0x01
435 #define PUFFS_FBIO_WRITE 0x02
436 #define PUFFS_FBIO_ERROR 0x04
437
438 #define PUFFS_FBQUEUE_URGENT 0x01
439
440
441 __BEGIN_DECLS
442
443 #define PUFFS_DEFER ((void *)-1)
444 struct puffs_usermount *puffs_init(struct puffs_ops *, const char *,
445 const char *, void *, uint32_t);
446 int puffs_mount(struct puffs_usermount *, const char *, int, void*);
447 int puffs_exit(struct puffs_usermount *, int);
448 void puffs_cancel(struct puffs_usermount *, int);
449 int puffs_mainloop(struct puffs_usermount *);
450 int puffs_daemon(struct puffs_usermount *, int, int);
451
452 int puffs_unmountonsignal(int, bool);
453
454
455 int puffs_getselectable(struct puffs_usermount *);
456 int puffs_setblockingmode(struct puffs_usermount *, int);
457 int puffs_getstate(struct puffs_usermount *);
458 void puffs_setstacksize(struct puffs_usermount *, size_t);
459
460 void puffs_ml_setloopfn(struct puffs_usermount *, puffs_ml_loop_fn);
461 void puffs_ml_settimeout(struct puffs_usermount *, struct timespec *);
462
463 void puffs_setroot(struct puffs_usermount *,
464 struct puffs_node *);
465 struct puffs_node *puffs_getroot(struct puffs_usermount *);
466 void puffs_setrootinfo(struct puffs_usermount *,
467 enum vtype, vsize_t, dev_t);
468
469 void *puffs_getspecific(struct puffs_usermount *);
470 void puffs_setspecific(struct puffs_usermount *, void *);
471 void puffs_setmaxreqlen(struct puffs_usermount *, size_t);
472 size_t puffs_getmaxreqlen(struct puffs_usermount *);
473 void puffs_setfhsize(struct puffs_usermount *, size_t, int);
474 void puffs_setmntinfo(struct puffs_usermount *,
475 const char *, const char *);
476
477 void puffs_setncookiehash(struct puffs_usermount *, int);
478
479 struct puffs_pathobj *puffs_getrootpathobj(struct puffs_usermount *);
480
481 void puffs_setback(struct puffs_cc *, int);
482
483 struct puffs_node *puffs_pn_new(struct puffs_usermount *, void *);
484 void puffs_pn_remove(struct puffs_node *);
485 void puffs_pn_put(struct puffs_node *);
486 struct vattr *puffs_pn_getvap(struct puffs_node *);
487 void * puffs_pn_getpriv(struct puffs_node *);
488 void puffs_pn_setpriv(struct puffs_node *, void *);
489 struct puffs_pathobj *puffs_pn_getpo(struct puffs_node *);
490 struct puffs_usermount *puffs_pn_getmnt(struct puffs_node *);
491
492 void puffs_newinfo_setcookie(struct puffs_newinfo *, puffs_cookie_t);
493 void puffs_newinfo_setvtype(struct puffs_newinfo *, enum vtype);
494 void puffs_newinfo_setsize(struct puffs_newinfo *, voff_t);
495
496 void *puffs_pn_getmntspecific(struct puffs_node *);
497
498 typedef void * (*puffs_nodewalk_fn)(struct puffs_usermount *,
499 struct puffs_node *, void *);
500 void *puffs_pn_nodewalk(struct puffs_usermount *,
501 puffs_nodewalk_fn, void *);
502
503 void puffs_setvattr(struct vattr *, const struct vattr *);
504 void puffs_vattr_null(struct vattr *);
505
506 void puffs_null_setops(struct puffs_ops *);
507
508 int puffs_dispatch_create(struct puffs_usermount *,
509 struct puffs_framebuf *,
510 struct puffs_cc **);
511 int puffs_dispatch_exec(struct puffs_cc *,
512 struct puffs_framebuf **);
513
514 /*
515 * generic/dummy routines applicable for some file systems
516 */
517 int puffs_fsnop_unmount(struct puffs_usermount *, int);
518 int puffs_fsnop_statvfs(struct puffs_usermount *, struct statvfs *);
519 void puffs_zerostatvfs(struct statvfs *);
520 int puffs_fsnop_sync(struct puffs_usermount *, int waitfor);
521
522 int puffs_genfs_node_getattr(struct puffs_usermount *, puffs_cookie_t,
523 struct vattr *, const struct puffs_cred *);
524 int puffs_genfs_node_reclaim(struct puffs_usermount *, puffs_cookie_t);
525
526 /*
527 * Subroutine stuff
528 */
529
530 int puffs_gendotdent(struct dirent **, ino_t, int, size_t *);
531 int puffs_nextdent(struct dirent **, const char *, ino_t,
532 uint8_t, size_t *);
533 int puffs_vtype2dt(enum vtype);
534 enum vtype puffs_mode2vt(mode_t);
535 void puffs_stat2vattr(struct vattr *va, const struct stat *);
536 mode_t puffs_addvtype2mode(mode_t, enum vtype);
537
538
539 /*
540 * credentials & permissions
541 */
542
543 /* Credential fetch */
544 int puffs_cred_getuid(const struct puffs_cred *, uid_t *);
545 int puffs_cred_getgid(const struct puffs_cred *, gid_t *);
546 int puffs_cred_getgroups(const struct puffs_cred *, gid_t *, short *);
547
548 /* Credential check */
549 bool puffs_cred_isuid(const struct puffs_cred *, uid_t);
550 bool puffs_cred_hasgroup(const struct puffs_cred *, gid_t);
551 bool puffs_cred_isregular(const struct puffs_cred *);
552 bool puffs_cred_iskernel(const struct puffs_cred *);
553 bool puffs_cred_isfs(const struct puffs_cred *);
554 bool puffs_cred_isjuggernaut(const struct puffs_cred *);
555
556 /* misc */
557 int puffs_access(enum vtype, mode_t, uid_t, gid_t, mode_t,
558 const struct puffs_cred *);
559 int puffs_access_chown(uid_t, gid_t, uid_t, gid_t,
560 const struct puffs_cred *);
561 int puffs_access_chmod(uid_t, gid_t, enum vtype, mode_t,
562 const struct puffs_cred *);
563 int puffs_access_times(uid_t, gid_t, mode_t, int,
564 const struct puffs_cred *);
565
566
567 /*
568 * Call Context interfaces relevant for user.
569 */
570
571 void puffs_cc_yield(struct puffs_cc *);
572 void puffs_cc_continue(struct puffs_cc *);
573 void puffs_cc_schedule(struct puffs_cc *);
574 int puffs_cc_getcaller(struct puffs_cc *,pid_t *,lwpid_t *);
575 struct puffs_cc *puffs_cc_getcc(struct puffs_usermount *);
576
577 /*
578 * Flushing / invalidation routines
579 */
580
581 int puffs_inval_namecache_dir(struct puffs_usermount *, puffs_cookie_t);
582 int puffs_inval_namecache_all(struct puffs_usermount *);
583
584 int puffs_inval_pagecache_node(struct puffs_usermount *, puffs_cookie_t);
585 int puffs_inval_pagecache_node_range(struct puffs_usermount *,
586 puffs_cookie_t, off_t, off_t);
587 int puffs_flush_pagecache_node(struct puffs_usermount *, puffs_cookie_t);
588 int puffs_flush_pagecache_node_range(struct puffs_usermount *,
589 puffs_cookie_t, off_t, off_t);
590
591 /*
592 * Path constructicons
593 */
594
595 int puffs_stdpath_buildpath(struct puffs_usermount *,
596 const struct puffs_pathobj *,
597 const struct puffs_pathobj *, size_t,
598 struct puffs_pathobj *);
599 int puffs_stdpath_cmppath(struct puffs_usermount *, struct puffs_pathobj *,
600 struct puffs_pathobj *, size_t, int);
601 void puffs_stdpath_freepath(struct puffs_usermount *,struct puffs_pathobj *);
602
603 void *puffs_path_walkcmp(struct puffs_usermount *,
604 struct puffs_node *, void *);
605 void *puffs_path_prefixadj(struct puffs_usermount *,
606 struct puffs_node *, void *);
607 int puffs_path_pcnbuild(struct puffs_usermount *,
608 struct puffs_cn *, void *);
609 void puffs_path_buildhash(struct puffs_usermount *, struct puffs_pathobj *);
610 void puffs_set_pathbuild(struct puffs_usermount *, pu_pathbuild_fn); void puffs_set_pathtransform(struct puffs_usermount *, pu_pathtransform_fn);
611 void puffs_set_pathcmp(struct puffs_usermount *, pu_pathcmp_fn);
612 void puffs_set_pathfree(struct puffs_usermount *, pu_pathfree_fn);
613 void puffs_set_namemod(struct puffs_usermount *, pu_namemod_fn);
614
615 void puffs_set_errnotify(struct puffs_usermount *, pu_errnotify_fn);
616 void puffs_kernerr_log(struct puffs_usermount *, uint8_t, int,
617 const char *, puffs_cookie_t);
618 void puffs_kernerr_abort(struct puffs_usermount *, uint8_t, int,
619 const char *, puffs_cookie_t);
620 void puffs_set_prepost(struct puffs_usermount *,
621 pu_prepost_fn, pu_prepost_fn);
622 void puffs_set_cmap(struct puffs_usermount *, pu_cmap_fn);
623
624 /*
625 * Suspension
626 */
627
628 int puffs_fs_suspend(struct puffs_usermount *);
629
630 /*
631 * Frame buffering
632 */
633
634 void puffs_framev_init(struct puffs_usermount *,
635 puffs_framev_readframe_fn,
636 puffs_framev_writeframe_fn,
637 puffs_framev_cmpframe_fn,
638 puffs_framev_gotframe_fn,
639 puffs_framev_fdnotify_fn);
640
641 struct puffs_framebuf *puffs_framebuf_make(void);
642 void puffs_framebuf_destroy(struct puffs_framebuf *);
643 int puffs_framebuf_dup(struct puffs_framebuf *,
644 struct puffs_framebuf **);
645 void puffs_framebuf_recycle(struct puffs_framebuf *);
646 int puffs_framebuf_reserve_space(struct puffs_framebuf *,
647 size_t);
648
649 int puffs_framebuf_putdata(struct puffs_framebuf *, const void *, size_t);
650 int puffs_framebuf_putdata_atoff(struct puffs_framebuf *, size_t,
651 const void *, size_t);
652 int puffs_framebuf_getdata(struct puffs_framebuf *, void *, size_t);
653 int puffs_framebuf_getdata_atoff(struct puffs_framebuf *, size_t,
654 void *, size_t);
655
656 size_t puffs_framebuf_telloff(struct puffs_framebuf *);
657 size_t puffs_framebuf_tellsize(struct puffs_framebuf *);
658 size_t puffs_framebuf_remaining(struct puffs_framebuf *);
659 int puffs_framebuf_seekset(struct puffs_framebuf *, size_t);
660 int puffs_framebuf_getwindow(struct puffs_framebuf *, size_t,
661 void **, size_t *);
662
663 int puffs_framev_enqueue_cc(struct puffs_cc *, int,
664 struct puffs_framebuf *, int);
665 int puffs_framev_enqueue_cb(struct puffs_usermount *, int,
666 struct puffs_framebuf *,
667 puffs_framev_cb, void *, int);
668 int puffs_framev_enqueue_justsend(struct puffs_usermount *, int,
669 struct puffs_framebuf *, int, int);
670 int puffs_framev_enqueue_directreceive(struct puffs_cc *, int,
671 struct puffs_framebuf *, int);
672 int puffs_framev_enqueue_directsend(struct puffs_cc *, int,
673 struct puffs_framebuf *, int);
674 int puffs_framev_enqueue_waitevent(struct puffs_cc *, int, int *);
675 int puffs_framev_framebuf_ccpromote(struct puffs_framebuf *,
676 struct puffs_cc *);
677
678 int puffs_framev_addfd(struct puffs_usermount *, int, int);
679 int puffs_framev_enablefd(struct puffs_usermount *, int, int);
680 int puffs_framev_disablefd(struct puffs_usermount *, int, int);
681 int puffs_framev_removefd(struct puffs_usermount *, int, int);
682 void puffs_framev_removeonclose(struct puffs_usermount *, int, int);
683 void puffs_framev_unmountonclose(struct puffs_usermount *, int, int);
684
685 __END_DECLS
686
687 #endif /* _PUFFS_H_ */
DragonFly BSD