puffs.h revision 1.99
1 /* $NetBSD: puffs.h,v 1.99 2007/12/08 19:57:03 pooka 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 <fs/puffs/puffs_msgif.h> 45 46 #include <mntopts.h> 47 #include <stdbool.h> 48 #include <string.h> 49 50 /* forwards */ 51 struct puffs_cc; 52 53 struct puffs_getreq; 54 struct puffs_cred; 55 struct puffs_newinfo; 56 57 /* paths */ 58 struct puffs_pathobj { 59 void *po_path; 60 size_t po_len; 61 uint32_t po_hash; 62 }; 63 64 /* for prefix rename */ 65 struct puffs_pathinfo { 66 struct puffs_pathobj *pi_old; 67 struct puffs_pathobj *pi_new; 68 }; 69 70 /* describes one segment cached in the kernel */ 71 struct puffs_kcache { 72 off_t pkc_start; 73 off_t pkc_end; 74 75 LIST_ENTRY(puffs_kcache) pkc_entries; 76 }; 77 78 /* XXX: might disappear from here into a private header */ 79 struct puffs_node { 80 off_t pn_size; 81 int pn_flags; 82 struct vattr pn_va; 83 84 void *pn_data; /* private data */ 85 86 struct puffs_pathobj pn_po; /* PUFFS_FLAG_BUILDPATH */ 87 88 struct puffs_usermount *pn_mnt; 89 LIST_ENTRY(puffs_node) pn_entries; 90 91 LIST_HEAD(,puffs_kcache)pn_cacheinfo; /* PUFFS_KFLAG_CACHE */ 92 }; 93 #define PUFFS_NODE_REMOVED 0x01 /* not on entry list */ 94 95 96 struct puffs_usermount; 97 98 /* 99 * megaXXX: these are values from inside _KERNEL 100 * need to work on the translation for ALL the necessary values. 101 */ 102 #define PUFFS_VNOVAL (-1) 103 104 #define PUFFS_IO_APPEND 0x020 105 #define PUFFS_IO_NDELAY 0x100 106 107 #define PUFFS_VEXEC 01 108 #define PUFFS_VWRITE 02 109 #define PUFFS_VREAD 04 110 111 #define PUFFS_FSYNC_DATAONLY 0x0002 112 #define PUFFS_FSYNC_CACHE 0x0100 113 114 /* 115 * Magic constants 116 */ 117 #define PUFFS_CC_STACKSHIFT_DEFAULT 18 118 119 struct puffs_cn { 120 struct puffs_kcn *pcn_pkcnp; /* kernel input */ 121 struct puffs_cred *pcn_cred; /* cred used for lookup */ 122 123 struct puffs_pathobj pcn_po_full; /* PUFFS_FLAG_BUILDPATH */ 124 }; 125 #define pcn_nameiop pcn_pkcnp->pkcn_nameiop 126 #define pcn_flags pcn_pkcnp->pkcn_flags 127 #define pcn_pid pcn_pkcnp->pkcn_pid 128 #define pcn_name pcn_pkcnp->pkcn_name 129 #define pcn_namelen pcn_pkcnp->pkcn_namelen 130 #define pcn_consume pcn_pkcnp->pkcn_consume 131 132 /* 133 * Puffs options to mount 134 */ 135 /* kernel */ 136 #define PUFFSMOPT_NAMECACHE { "namecache", 1, PUFFS_KFLAG_NOCACHE_NAME, 1 } 137 #define PUFFSMOPT_PAGECACHE { "pagecache", 1, PUFFS_KFLAG_NOCACHE_PAGE, 1 } 138 #define PUFFSMOPT_CACHE { "cache", 1, PUFFS_KFLAG_NOCACHE, 1 } 139 #define PUFFSMOPT_ALLOPS { "allops", 0, PUFFS_KFLAG_ALLOPS, 1 } 140 141 /* libpuffs */ 142 #define PUFFSMOPT_DUMP { "dump", 0, PUFFS_FLAG_OPDUMP, 1 } 143 144 #define PUFFSMOPT_STD \ 145 PUFFSMOPT_NAMECACHE, \ 146 PUFFSMOPT_PAGECACHE, \ 147 PUFFSMOPT_CACHE, \ 148 PUFFSMOPT_ALLOPS, \ 149 PUFFSMOPT_DUMP 150 151 extern const struct mntopt puffsmopts[]; /* puffs.c */ 152 153 /* callbacks for operations */ 154 struct puffs_ops { 155 int (*puffs_fs_unmount)(struct puffs_usermount *, int); 156 int (*puffs_fs_statvfs)(struct puffs_usermount *, struct statvfs *); 157 int (*puffs_fs_sync)(struct puffs_usermount *, int, 158 const struct puffs_cred *); 159 int (*puffs_fs_fhtonode)(struct puffs_usermount *, void *, size_t, 160 struct puffs_newinfo *); 161 int (*puffs_fs_nodetofh)(struct puffs_usermount *, void *cookie, 162 void *, size_t *); 163 void (*puffs_fs_suspend)(struct puffs_usermount *, int); 164 165 int (*puffs_node_lookup)(struct puffs_usermount *, 166 void *, struct puffs_newinfo *, const struct puffs_cn *); 167 int (*puffs_node_create)(struct puffs_usermount *, 168 void *, struct puffs_newinfo *, const struct puffs_cn *, 169 const struct vattr *); 170 int (*puffs_node_mknod)(struct puffs_usermount *, 171 void *, struct puffs_newinfo *, const struct puffs_cn *, 172 const struct vattr *); 173 int (*puffs_node_open)(struct puffs_usermount *, 174 void *, int, const struct puffs_cred *); 175 int (*puffs_node_close)(struct puffs_usermount *, 176 void *, int, const struct puffs_cred *); 177 int (*puffs_node_access)(struct puffs_usermount *, 178 void *, int, const struct puffs_cred *); 179 int (*puffs_node_getattr)(struct puffs_usermount *, 180 void *, struct vattr *, const struct puffs_cred *); 181 int (*puffs_node_setattr)(struct puffs_usermount *, 182 void *, const struct vattr *, const struct puffs_cred *); 183 int (*puffs_node_poll)(struct puffs_usermount *, void *, int *); 184 int (*puffs_node_mmap)(struct puffs_usermount *, 185 void *, vm_prot_t, const struct puffs_cred *); 186 int (*puffs_node_fsync)(struct puffs_usermount *, 187 void *, const struct puffs_cred *, int, off_t, off_t); 188 int (*puffs_node_seek)(struct puffs_usermount *, 189 void *, off_t, off_t, const struct puffs_cred *); 190 int (*puffs_node_remove)(struct puffs_usermount *, 191 void *, void *, const struct puffs_cn *); 192 int (*puffs_node_link)(struct puffs_usermount *, 193 void *, void *, const struct puffs_cn *); 194 int (*puffs_node_rename)(struct puffs_usermount *, 195 void *, void *, const struct puffs_cn *, void *, void *, 196 const struct puffs_cn *); 197 int (*puffs_node_mkdir)(struct puffs_usermount *, 198 void *, struct puffs_newinfo *, const struct puffs_cn *, 199 const struct vattr *); 200 int (*puffs_node_rmdir)(struct puffs_usermount *, 201 void *, void *, const struct puffs_cn *); 202 int (*puffs_node_symlink)(struct puffs_usermount *, 203 void *, struct puffs_newinfo *, const struct puffs_cn *, 204 const struct vattr *, 205 const char *); 206 int (*puffs_node_readdir)(struct puffs_usermount *, 207 void *, struct dirent *, off_t *, size_t *, 208 const struct puffs_cred *, int *, off_t *, size_t *); 209 int (*puffs_node_readlink)(struct puffs_usermount *, 210 void *, const struct puffs_cred *, char *, size_t *); 211 int (*puffs_node_reclaim)(struct puffs_usermount *, void *); 212 int (*puffs_node_inactive)(struct puffs_usermount *, void *); 213 int (*puffs_node_print)(struct puffs_usermount *, void *); 214 int (*puffs_node_pathconf)(struct puffs_usermount *, 215 void *, int, int *); 216 int (*puffs_node_advlock)(struct puffs_usermount *, 217 void *, void *, int, struct flock *, int); 218 int (*puffs_node_read)(struct puffs_usermount *, void *, 219 uint8_t *, off_t, size_t *, const struct puffs_cred *, int); 220 int (*puffs_node_write)(struct puffs_usermount *, void *, 221 uint8_t *, off_t, size_t *, const struct puffs_cred *, int); 222 223 /* XXX: this shouldn't be here */ 224 void (*puffs_cache_write)(struct puffs_usermount *, 225 void *, size_t, struct puffs_cacherun *); 226 }; 227 228 typedef int (*pu_pathbuild_fn)(struct puffs_usermount *, 229 const struct puffs_pathobj *, 230 const struct puffs_pathobj *, size_t, 231 struct puffs_pathobj *); 232 typedef int (*pu_pathtransform_fn)(struct puffs_usermount *, 233 const struct puffs_pathobj *, 234 const struct puffs_cn *, 235 struct puffs_pathobj *); 236 typedef int (*pu_pathcmp_fn)(struct puffs_usermount *, struct puffs_pathobj *, 237 struct puffs_pathobj *, size_t, int); 238 typedef void (*pu_pathfree_fn)(struct puffs_usermount *, 239 struct puffs_pathobj *); 240 typedef int (*pu_namemod_fn)(struct puffs_usermount *, 241 struct puffs_pathobj *, struct puffs_cn *); 242 243 typedef void (*pu_errnotify_fn)(struct puffs_usermount *, 244 uint8_t, int, const char *, void *); 245 246 typedef void (*pu_prepost_fn)(struct puffs_usermount *); 247 248 enum { 249 PUFFS_STATE_BEFOREMOUNT, PUFFS_STATE_RUNNING, 250 PUFFS_STATE_UNMOUNTING, PUFFS_STATE_UNMOUNTED 251 }; 252 253 #define PUFFS_FLAG_BUILDPATH 0x80000000 /* node paths in pnode */ 254 #define PUFFS_FLAG_OPDUMP 0x40000000 /* dump all operations */ 255 #define PUFFS_FLAG_HASHPATH 0x20000000 /* speedup: hash paths */ 256 #define PUFFS_FLAG_MASK 0xe0000000 257 258 #define PUFFS_FLAG_KERN(a) ((a) & PUFFS_KFLAG_MASK) 259 #define PUFFS_FLAG_LIB(a) ((a) & PUFFS_FLAG_MASK) 260 261 /* blocking mode argument */ 262 #define PUFFSDEV_BLOCK 0 263 #define PUFFSDEV_NONBLOCK 1 264 265 #define DENT_DOT 0 266 #define DENT_DOTDOT 1 267 #define DENT_ADJ(a) ((a)-2) /* nth request means dir's n-2th */ 268 269 270 /* 271 * protos 272 */ 273 274 #define PUFFSOP_PROTOS(fsname) \ 275 int fsname##_fs_unmount(struct puffs_usermount *, int); \ 276 int fsname##_fs_statvfs(struct puffs_usermount *, \ 277 struct statvfs *); \ 278 int fsname##_fs_sync(struct puffs_usermount *, int, \ 279 const struct puffs_cred *cred); \ 280 int fsname##_fs_fhtonode(struct puffs_usermount *, void *, \ 281 size_t, struct puffs_newinfo *); \ 282 int fsname##_fs_nodetofh(struct puffs_usermount *, void *cookie,\ 283 void *, size_t *); \ 284 void fsname##_fs_suspend(struct puffs_usermount *, int); \ 285 \ 286 int fsname##_node_lookup(struct puffs_usermount *, \ 287 void *, struct puffs_newinfo *, const struct puffs_cn *); \ 288 int fsname##_node_create(struct puffs_usermount *, \ 289 void *, struct puffs_newinfo *, const struct puffs_cn *, \ 290 const struct vattr *); \ 291 int fsname##_node_mknod(struct puffs_usermount *, \ 292 void *, struct puffs_newinfo *, const struct puffs_cn *, \ 293 const struct vattr *); \ 294 int fsname##_node_open(struct puffs_usermount *, \ 295 void *, int, const struct puffs_cred *); \ 296 int fsname##_node_close(struct puffs_usermount *, \ 297 void *, int, const struct puffs_cred *); \ 298 int fsname##_node_access(struct puffs_usermount *, \ 299 void *, int, const struct puffs_cred *); \ 300 int fsname##_node_getattr(struct puffs_usermount *, \ 301 void *, struct vattr *, const struct puffs_cred *); \ 302 int fsname##_node_setattr(struct puffs_usermount *, \ 303 void *, const struct vattr *, const struct puffs_cred *); \ 304 int fsname##_node_poll(struct puffs_usermount *, void *, int *);\ 305 int fsname##_node_mmap(struct puffs_usermount *, \ 306 void *, vm_prot_t, const struct puffs_cred *); \ 307 int fsname##_node_fsync(struct puffs_usermount *, \ 308 void *, const struct puffs_cred *, int, off_t, off_t); \ 309 int fsname##_node_seek(struct puffs_usermount *, \ 310 void *, off_t, off_t, const struct puffs_cred *); \ 311 int fsname##_node_remove(struct puffs_usermount *, \ 312 void *, void *, const struct puffs_cn *); \ 313 int fsname##_node_link(struct puffs_usermount *, \ 314 void *, void *, const struct puffs_cn *); \ 315 int fsname##_node_rename(struct puffs_usermount *, \ 316 void *, void *, const struct puffs_cn *, void *, void *, \ 317 const struct puffs_cn *); \ 318 int fsname##_node_mkdir(struct puffs_usermount *, \ 319 void *, struct puffs_newinfo *, const struct puffs_cn *, \ 320 const struct vattr *); \ 321 int fsname##_node_rmdir(struct puffs_usermount *, \ 322 void *, void *, const struct puffs_cn *); \ 323 int fsname##_node_symlink(struct puffs_usermount *, \ 324 void *, struct puffs_newinfo *, const struct puffs_cn *, \ 325 const struct vattr *, const char *); \ 326 int fsname##_node_readdir(struct puffs_usermount *, \ 327 void *, struct dirent *, off_t *, size_t *, \ 328 const struct puffs_cred *, int *, off_t *, size_t *); \ 329 int fsname##_node_readlink(struct puffs_usermount *, \ 330 void *, const struct puffs_cred *, char *, size_t *); \ 331 int fsname##_node_reclaim(struct puffs_usermount *, void *); \ 332 int fsname##_node_inactive(struct puffs_usermount *, void *); \ 333 int fsname##_node_print(struct puffs_usermount *, \ 334 void *); \ 335 int fsname##_node_pathconf(struct puffs_usermount *, \ 336 void *, int, int *); \ 337 int fsname##_node_advlock(struct puffs_usermount *, \ 338 void *, void *, int, struct flock *, int); \ 339 int fsname##_node_read(struct puffs_usermount *, void *, \ 340 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\ 341 int fsname##_node_write(struct puffs_usermount *, void *, \ 342 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\ 343 \ 344 int fsname##_cache_write(struct puffs_usermount *, void *, \ 345 size_t, struct puffs_cacheinfo *); 346 347 #define PUFFSOP_INIT(ops) \ 348 ops = malloc(sizeof(struct puffs_ops)); \ 349 memset(ops, 0, sizeof(struct puffs_ops)) 350 #define PUFFSOP_SET(ops, fsname, fsornode, opname) \ 351 (ops)->puffs_##fsornode##_##opname = fsname##_##fsornode##_##opname 352 #define PUFFSOP_SETFSNOP(ops, opname) \ 353 (ops)->puffs_fs_##opname = puffs_fsnop_##opname 354 355 PUFFSOP_PROTOS(puffs_null) /* XXX */ 356 357 #define PUFFS_DEVEL_LIBVERSION 32 358 #define puffs_init(a,b,c,d,e) \ 359 _puffs_init(PUFFS_DEVEL_LIBVERSION,a,b,c,d,e) 360 361 362 #define PNPATH(pnode) ((pnode)->pn_po.po_path) 363 #define PNPLEN(pnode) ((pnode)->pn_po.po_len) 364 #define PCNPATH(pcnode) ((pcnode)->pcn_po_full.po_path) 365 #define PCNPLEN(pcnode) ((pcnode)->pcn_po_full.po_len) 366 #define PCNISDOTDOT(pcnode) \ 367 ((pcnode)->pcn_namelen == 2 && strcmp((pcnode)->pcn_name, "..") == 0) 368 369 #define PUFFS_STORE_DCOOKIE(cp, ncp, off) \ 370 if (cp) { \ 371 *((cp)++) = off; \ 372 (*(ncp))++; \ 373 } 374 375 /* mainloop */ 376 typedef void (*puffs_ml_loop_fn)(struct puffs_usermount *); 377 378 /* framebuf stuff */ 379 struct puffs_framebuf; 380 typedef int (*puffs_framev_readframe_fn)(struct puffs_usermount *, 381 struct puffs_framebuf *, 382 int, int *); 383 typedef int (*puffs_framev_writeframe_fn)(struct puffs_usermount *, 384 struct puffs_framebuf *, 385 int, int *); 386 typedef int (*puffs_framev_cmpframe_fn)(struct puffs_usermount *, 387 struct puffs_framebuf *, 388 struct puffs_framebuf *, 389 int *); 390 typedef void (*puffs_framev_fdnotify_fn)(struct puffs_usermount *, int, int); 391 typedef void (*puffs_framev_gotframe_fn)(struct puffs_usermount *, 392 struct puffs_framebuf *); 393 typedef void (*puffs_framev_cb)(struct puffs_usermount *, 394 struct puffs_framebuf *, 395 void *, int); 396 #define PUFFS_FBIO_READ 0x01 397 #define PUFFS_FBIO_WRITE 0x02 398 #define PUFFS_FBIO_ERROR 0x04 399 400 #define PUFFS_FBQUEUE_URGENT 0x01 401 402 403 __BEGIN_DECLS 404 405 struct puffs_usermount *_puffs_init(int, struct puffs_ops *, const char *, 406 const char *, void *, uint32_t); 407 int puffs_mount(struct puffs_usermount *, const char *, int, void*); 408 int puffs_exit(struct puffs_usermount *, int); 409 int puffs_mainloop(struct puffs_usermount *); 410 int puffs_daemon(struct puffs_usermount *, int, int); 411 412 413 int puffs_getselectable(struct puffs_usermount *); 414 int puffs_setblockingmode(struct puffs_usermount *, int); 415 int puffs_getstate(struct puffs_usermount *); 416 void puffs_setstacksize(struct puffs_usermount *, size_t); 417 418 void puffs_ml_setloopfn(struct puffs_usermount *, puffs_ml_loop_fn); 419 void puffs_ml_settimeout(struct puffs_usermount *, struct timespec *); 420 421 void puffs_setroot(struct puffs_usermount *, 422 struct puffs_node *); 423 struct puffs_node *puffs_getroot(struct puffs_usermount *); 424 void puffs_setrootinfo(struct puffs_usermount *, 425 enum vtype, vsize_t, dev_t); 426 427 void *puffs_getspecific(struct puffs_usermount *); 428 void puffs_setmaxreqlen(struct puffs_usermount *, size_t); 429 size_t puffs_getmaxreqlen(struct puffs_usermount *); 430 void puffs_setfhsize(struct puffs_usermount *, size_t, int); 431 432 void puffs_setncookiehash(struct puffs_usermount *, int); 433 434 struct puffs_pathobj *puffs_getrootpathobj(struct puffs_usermount *); 435 436 void puffs_setback(struct puffs_cc *, int); 437 438 struct puffs_node *puffs_pn_new(struct puffs_usermount *, void *); 439 void puffs_pn_remove(struct puffs_node *); 440 void puffs_pn_put(struct puffs_node *); 441 struct vattr *puffs_pn_getvap(struct puffs_node *); 442 void * puffs_pn_getpriv(struct puffs_node *); 443 void puffs_pn_setpriv(struct puffs_node *, void *); 444 struct puffs_pathobj *puffs_pn_getpo(struct puffs_node *); 445 struct puffs_usermount *puffs_pn_getmnt(struct puffs_node *); 446 447 void puffs_newinfo_setcookie(struct puffs_newinfo *, void *); 448 void puffs_newinfo_setvtype(struct puffs_newinfo *, enum vtype); 449 void puffs_newinfo_setsize(struct puffs_newinfo *, voff_t); 450 void puffs_newinfo_setrdev(struct puffs_newinfo *, dev_t); 451 452 void *puffs_pn_getmntspecific(struct puffs_node *); 453 454 typedef void * (*puffs_nodewalk_fn)(struct puffs_usermount *, 455 struct puffs_node *, void *); 456 void *puffs_pn_nodewalk(struct puffs_usermount *, 457 puffs_nodewalk_fn, void *); 458 459 void puffs_setvattr(struct vattr *, const struct vattr *); 460 void puffs_vattr_null(struct vattr *); 461 462 void puffs_null_setops(struct puffs_ops *); 463 464 /* 465 * generic/dummy routines applicable for some file systems 466 */ 467 int puffs_fsnop_unmount(struct puffs_usermount *, int); 468 int puffs_fsnop_statvfs(struct puffs_usermount *, struct statvfs *); 469 void puffs_zerostatvfs(struct statvfs *); 470 int puffs_fsnop_sync(struct puffs_usermount *, int waitfor, 471 const struct puffs_cred *); 472 int puffs_genfs_node_reclaim(struct puffs_usermount *, void *); 473 474 /* 475 * Subroutine stuff 476 */ 477 478 int puffs_gendotdent(struct dirent **, ino_t, int, size_t *); 479 int puffs_nextdent(struct dirent **, const char *, ino_t, 480 uint8_t, size_t *); 481 int puffs_vtype2dt(enum vtype); 482 enum vtype puffs_mode2vt(mode_t); 483 void puffs_stat2vattr(struct vattr *va, const struct stat *); 484 mode_t puffs_addvtype2mode(mode_t, enum vtype); 485 486 487 /* 488 * credentials & permissions 489 */ 490 491 /* Credential fetch */ 492 int puffs_cred_getuid(const struct puffs_cred *, uid_t *); 493 int puffs_cred_getgid(const struct puffs_cred *, gid_t *); 494 int puffs_cred_getgroups(const struct puffs_cred *, gid_t *, short *); 495 496 /* Credential check */ 497 bool puffs_cred_isuid(const struct puffs_cred *, uid_t); 498 bool puffs_cred_hasgroup(const struct puffs_cred *, gid_t); 499 bool puffs_cred_isregular(const struct puffs_cred *); 500 bool puffs_cred_iskernel(const struct puffs_cred *); 501 bool puffs_cred_isfs(const struct puffs_cred *); 502 bool puffs_cred_isjuggernaut(const struct puffs_cred *); 503 504 /* misc */ 505 int puffs_access(enum vtype, mode_t, uid_t, gid_t, mode_t, 506 const struct puffs_cred *); 507 int puffs_access_chown(uid_t, gid_t, uid_t, gid_t, 508 const struct puffs_cred *); 509 int puffs_access_chmod(uid_t, gid_t, enum vtype, mode_t, 510 const struct puffs_cred *); 511 int puffs_access_times(uid_t, gid_t, mode_t, int, 512 const struct puffs_cred *); 513 514 515 /* 516 * Call Context interfaces relevant for user. 517 */ 518 519 void puffs_cc_yield(struct puffs_cc *); 520 void puffs_cc_continue(struct puffs_cc *); 521 void puffs_cc_schedule(struct puffs_cc *); 522 struct puffs_usermount *puffs_cc_getusermount(struct puffs_cc *); 523 void *puffs_cc_getspecific(struct puffs_cc *); 524 int puffs_cc_getcaller(struct puffs_cc *,pid_t *,lwpid_t *); 525 struct puffs_cc *puffs_cc_getcc(struct puffs_usermount *); 526 527 /* 528 * Flushing / invalidation routines 529 */ 530 531 int puffs_inval_namecache_dir(struct puffs_usermount *, void *); 532 int puffs_inval_namecache_all(struct puffs_usermount *); 533 534 int puffs_inval_pagecache_node(struct puffs_usermount *, void *); 535 int puffs_inval_pagecache_node_range(struct puffs_usermount *, void *, 536 off_t, off_t); 537 int puffs_flush_pagecache_node(struct puffs_usermount *, void *); 538 int puffs_flush_pagecache_node_range(struct puffs_usermount *, void *, 539 off_t, off_t); 540 541 /* 542 * Path constructicons 543 */ 544 545 int puffs_stdpath_buildpath(struct puffs_usermount *, 546 const struct puffs_pathobj *, 547 const struct puffs_pathobj *, size_t, 548 struct puffs_pathobj *); 549 int puffs_stdpath_cmppath(struct puffs_usermount *, struct puffs_pathobj *, 550 struct puffs_pathobj *, size_t, int); 551 void puffs_stdpath_freepath(struct puffs_usermount *,struct puffs_pathobj *); 552 553 void *puffs_path_walkcmp(struct puffs_usermount *, 554 struct puffs_node *, void *); 555 void *puffs_path_prefixadj(struct puffs_usermount *, 556 struct puffs_node *, void *); 557 int puffs_path_pcnbuild(struct puffs_usermount *, 558 struct puffs_cn *, void *); 559 void puffs_path_buildhash(struct puffs_usermount *, struct puffs_pathobj *); 560 void puffs_set_pathbuild(struct puffs_usermount *, pu_pathbuild_fn); void puffs_set_pathtransform(struct puffs_usermount *, pu_pathtransform_fn); 561 void puffs_set_pathcmp(struct puffs_usermount *, pu_pathcmp_fn); 562 void puffs_set_pathfree(struct puffs_usermount *, pu_pathfree_fn); 563 void puffs_set_namemod(struct puffs_usermount *, pu_namemod_fn); 564 565 void puffs_set_errnotify(struct puffs_usermount *, pu_errnotify_fn); 566 void puffs_set_prepost(struct puffs_usermount *, 567 pu_prepost_fn, pu_prepost_fn); 568 569 /* 570 * Suspension 571 */ 572 573 int puffs_fs_suspend(struct puffs_usermount *); 574 575 /* 576 * Frame buffering 577 */ 578 579 void puffs_framev_init(struct puffs_usermount *, 580 puffs_framev_readframe_fn, 581 puffs_framev_writeframe_fn, 582 puffs_framev_cmpframe_fn, 583 puffs_framev_gotframe_fn, 584 puffs_framev_fdnotify_fn); 585 586 struct puffs_framebuf *puffs_framebuf_make(void); 587 void puffs_framebuf_destroy(struct puffs_framebuf *); 588 int puffs_framebuf_dup(struct puffs_framebuf *, 589 struct puffs_framebuf **); 590 void puffs_framebuf_recycle(struct puffs_framebuf *); 591 int puffs_framebuf_reserve_space(struct puffs_framebuf *, 592 size_t); 593 594 int puffs_framebuf_putdata(struct puffs_framebuf *, const void *, size_t); 595 int puffs_framebuf_putdata_atoff(struct puffs_framebuf *, size_t, 596 const void *, size_t); 597 int puffs_framebuf_getdata(struct puffs_framebuf *, void *, size_t); 598 int puffs_framebuf_getdata_atoff(struct puffs_framebuf *, size_t, 599 void *, size_t); 600 601 size_t puffs_framebuf_telloff(struct puffs_framebuf *); 602 size_t puffs_framebuf_tellsize(struct puffs_framebuf *); 603 size_t puffs_framebuf_remaining(struct puffs_framebuf *); 604 int puffs_framebuf_seekset(struct puffs_framebuf *, size_t); 605 int puffs_framebuf_getwindow(struct puffs_framebuf *, size_t, 606 void **, size_t *); 607 608 int puffs_framev_enqueue_cc(struct puffs_cc *, int, 609 struct puffs_framebuf *, int); 610 int puffs_framev_enqueue_cb(struct puffs_usermount *, int, 611 struct puffs_framebuf *, 612 puffs_framev_cb, void *, int); 613 int puffs_framev_enqueue_justsend(struct puffs_usermount *, int, 614 struct puffs_framebuf *, int, int); 615 int puffs_framev_enqueue_directreceive(struct puffs_cc *, int, 616 struct puffs_framebuf *, int); 617 int puffs_framev_enqueue_directsend(struct puffs_cc *, int, 618 struct puffs_framebuf *, int); 619 int puffs_framev_enqueue_waitevent(struct puffs_cc *, int, int *); 620 int puffs_framev_framebuf_ccpromote(struct puffs_framebuf *, 621 struct puffs_cc *); 622 623 int puffs_framev_addfd(struct puffs_usermount *, int, int); 624 int puffs_framev_enablefd(struct puffs_usermount *, int, int); 625 int puffs_framev_disablefd(struct puffs_usermount *, int, int); 626 int puffs_framev_removefd(struct puffs_usermount *, int, int); 627 void puffs_framev_removeonclose(struct puffs_usermount *, int, int); 628 void puffs_framev_unmountonclose(struct puffs_usermount *, int, int); 629 630 __END_DECLS 631 632 #endif /* _PUFFS_H_ */ 633
Indexes created Mon Sep 29 21:09:56 GMT 2025