puffs.h revision 1.98
1 /* $NetBSD: puffs.h,v 1.98 2007/12/04 21:24:11 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_cid; 56 struct puffs_newinfo; 57 58 /* paths */ 59 struct puffs_pathobj { 60 void *po_path; 61 size_t po_len; 62 uint32_t po_hash; 63 }; 64 65 /* for prefix rename */ 66 struct puffs_pathinfo { 67 struct puffs_pathobj *pi_old; 68 struct puffs_pathobj *pi_new; 69 }; 70 71 /* describes one segment cached in the kernel */ 72 struct puffs_kcache { 73 off_t pkc_start; 74 off_t pkc_end; 75 76 LIST_ENTRY(puffs_kcache) pkc_entries; 77 }; 78 79 /* XXX: might disappear from here into a private header */ 80 struct puffs_node { 81 off_t pn_size; 82 int pn_flags; 83 struct vattr pn_va; 84 85 void *pn_data; /* private data */ 86 87 struct puffs_pathobj pn_po; /* PUFFS_FLAG_BUILDPATH */ 88 89 struct puffs_usermount *pn_mnt; 90 LIST_ENTRY(puffs_node) pn_entries; 91 92 LIST_HEAD(,puffs_kcache)pn_cacheinfo; /* PUFFS_KFLAG_CACHE */ 93 }; 94 #define PUFFS_NODE_REMOVED 0x01 /* not on entry list */ 95 96 97 struct puffs_usermount; 98 99 /* 100 * megaXXX: these are values from inside _KERNEL 101 * need to work on the translation for ALL the necessary values. 102 */ 103 #define PUFFS_VNOVAL (-1) 104 105 #define PUFFS_IO_APPEND 0x020 106 #define PUFFS_IO_NDELAY 0x100 107 108 #define PUFFS_VEXEC 01 109 #define PUFFS_VWRITE 02 110 #define PUFFS_VREAD 04 111 112 #define PUFFS_FSYNC_DATAONLY 0x0002 113 #define PUFFS_FSYNC_CACHE 0x0100 114 115 /* 116 * Magic constants 117 */ 118 #define PUFFS_CC_STACKSHIFT_DEFAULT 18 119 120 struct puffs_cn { 121 struct puffs_kcn *pcn_pkcnp; /* kernel input */ 122 123 struct puffs_cred *pcn_cred; /* cred used for lookup */ 124 struct puffs_cid *pcn_cid; /* the who called */ 125 126 struct puffs_pathobj pcn_po_full; /* PUFFS_FLAG_BUILDPATH */ 127 }; 128 #define pcn_nameiop pcn_pkcnp->pkcn_nameiop 129 #define pcn_flags pcn_pkcnp->pkcn_flags 130 #define pcn_pid pcn_pkcnp->pkcn_pid 131 #define pcn_name pcn_pkcnp->pkcn_name 132 #define pcn_namelen pcn_pkcnp->pkcn_namelen 133 #define pcn_consume pcn_pkcnp->pkcn_consume 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_CACHE { "cache", 1, PUFFS_KFLAG_NOCACHE, 1 } 142 #define PUFFSMOPT_ALLOPS { "allops", 0, PUFFS_KFLAG_ALLOPS, 1 } 143 144 /* libpuffs */ 145 #define PUFFSMOPT_DUMP { "dump", 0, PUFFS_FLAG_OPDUMP, 1 } 146 147 #define PUFFSMOPT_STD \ 148 PUFFSMOPT_NAMECACHE, \ 149 PUFFSMOPT_PAGECACHE, \ 150 PUFFSMOPT_CACHE, \ 151 PUFFSMOPT_ALLOPS, \ 152 PUFFSMOPT_DUMP 153 154 extern const struct mntopt puffsmopts[]; /* puffs.c */ 155 156 /* callbacks for operations */ 157 struct puffs_ops { 158 int (*puffs_fs_unmount)(struct puffs_usermount *, int); 159 int (*puffs_fs_statvfs)(struct puffs_usermount *, struct statvfs *); 160 int (*puffs_fs_sync)(struct puffs_usermount *, int, 161 const struct puffs_cred *); 162 int (*puffs_fs_fhtonode)(struct puffs_usermount *, void *, size_t, 163 struct puffs_newinfo *); 164 int (*puffs_fs_nodetofh)(struct puffs_usermount *, void *cookie, 165 void *, size_t *); 166 void (*puffs_fs_suspend)(struct puffs_usermount *, int); 167 168 int (*puffs_node_lookup)(struct puffs_usermount *, 169 void *, struct puffs_newinfo *, const struct puffs_cn *); 170 int (*puffs_node_create)(struct puffs_usermount *, 171 void *, struct puffs_newinfo *, const struct puffs_cn *, 172 const struct vattr *); 173 int (*puffs_node_mknod)(struct puffs_usermount *, 174 void *, struct puffs_newinfo *, const struct puffs_cn *, 175 const struct vattr *); 176 int (*puffs_node_open)(struct puffs_usermount *, 177 void *, int, const struct puffs_cred *); 178 int (*puffs_node_close)(struct puffs_usermount *, 179 void *, int, const struct puffs_cred *); 180 int (*puffs_node_access)(struct puffs_usermount *, 181 void *, int, const struct puffs_cred *); 182 int (*puffs_node_getattr)(struct puffs_usermount *, 183 void *, struct vattr *, const struct puffs_cred *); 184 int (*puffs_node_setattr)(struct puffs_usermount *, 185 void *, const struct vattr *, const struct puffs_cred *); 186 int (*puffs_node_poll)(struct puffs_usermount *, void *, int *); 187 int (*puffs_node_mmap)(struct puffs_usermount *, 188 void *, vm_prot_t, const struct puffs_cred *); 189 int (*puffs_node_fsync)(struct puffs_usermount *, 190 void *, const struct puffs_cred *, int, off_t, off_t); 191 int (*puffs_node_seek)(struct puffs_usermount *, 192 void *, off_t, off_t, const struct puffs_cred *); 193 int (*puffs_node_remove)(struct puffs_usermount *, 194 void *, void *, const struct puffs_cn *); 195 int (*puffs_node_link)(struct puffs_usermount *, 196 void *, void *, const struct puffs_cn *); 197 int (*puffs_node_rename)(struct puffs_usermount *, 198 void *, void *, const struct puffs_cn *, void *, void *, 199 const struct puffs_cn *); 200 int (*puffs_node_mkdir)(struct puffs_usermount *, 201 void *, struct puffs_newinfo *, const struct puffs_cn *, 202 const struct vattr *); 203 int (*puffs_node_rmdir)(struct puffs_usermount *, 204 void *, void *, const struct puffs_cn *); 205 int (*puffs_node_symlink)(struct puffs_usermount *, 206 void *, struct puffs_newinfo *, const struct puffs_cn *, 207 const struct vattr *, 208 const char *); 209 int (*puffs_node_readdir)(struct puffs_usermount *, 210 void *, struct dirent *, off_t *, size_t *, 211 const struct puffs_cred *, int *, off_t *, size_t *); 212 int (*puffs_node_readlink)(struct puffs_usermount *, 213 void *, const struct puffs_cred *, char *, size_t *); 214 int (*puffs_node_reclaim)(struct puffs_usermount *, void *); 215 int (*puffs_node_inactive)(struct puffs_usermount *, void *); 216 int (*puffs_node_print)(struct puffs_usermount *, void *); 217 int (*puffs_node_pathconf)(struct puffs_usermount *, 218 void *, int, int *); 219 int (*puffs_node_advlock)(struct puffs_usermount *, 220 void *, void *, int, struct flock *, int); 221 int (*puffs_node_read)(struct puffs_usermount *, void *, 222 uint8_t *, off_t, size_t *, const struct puffs_cred *, int); 223 int (*puffs_node_write)(struct puffs_usermount *, void *, 224 uint8_t *, off_t, size_t *, const struct puffs_cred *, int); 225 226 /* XXX: this shouldn't be here */ 227 void (*puffs_cache_write)(struct puffs_usermount *, 228 void *, size_t, struct puffs_cacherun *); 229 }; 230 231 typedef int (*pu_pathbuild_fn)(struct puffs_usermount *, 232 const struct puffs_pathobj *, 233 const struct puffs_pathobj *, size_t, 234 struct puffs_pathobj *); 235 typedef int (*pu_pathtransform_fn)(struct puffs_usermount *, 236 const struct puffs_pathobj *, 237 const struct puffs_cn *, 238 struct puffs_pathobj *); 239 typedef int (*pu_pathcmp_fn)(struct puffs_usermount *, struct puffs_pathobj *, 240 struct puffs_pathobj *, size_t, int); 241 typedef void (*pu_pathfree_fn)(struct puffs_usermount *, 242 struct puffs_pathobj *); 243 typedef int (*pu_namemod_fn)(struct puffs_usermount *, 244 struct puffs_pathobj *, struct puffs_cn *); 245 246 typedef void (*pu_errnotify_fn)(struct puffs_usermount *, 247 uint8_t, int, const char *, void *); 248 249 typedef void (*pu_prepost_fn)(struct puffs_usermount *); 250 251 enum { 252 PUFFS_STATE_BEFOREMOUNT, PUFFS_STATE_RUNNING, 253 PUFFS_STATE_UNMOUNTING, PUFFS_STATE_UNMOUNTED 254 }; 255 256 #define PUFFS_FLAG_BUILDPATH 0x80000000 /* node paths in pnode */ 257 #define PUFFS_FLAG_OPDUMP 0x40000000 /* dump all operations */ 258 #define PUFFS_FLAG_HASHPATH 0x20000000 /* speedup: hash paths */ 259 #define PUFFS_FLAG_MASK 0xe0000000 260 261 #define PUFFS_FLAG_KERN(a) ((a) & PUFFS_KFLAG_MASK) 262 #define PUFFS_FLAG_LIB(a) ((a) & PUFFS_FLAG_MASK) 263 264 /* blocking mode argument */ 265 #define PUFFSDEV_BLOCK 0 266 #define PUFFSDEV_NONBLOCK 1 267 268 #define DENT_DOT 0 269 #define DENT_DOTDOT 1 270 #define DENT_ADJ(a) ((a)-2) /* nth request means dir's n-2th */ 271 272 273 /* 274 * protos 275 */ 276 277 #define PUFFSOP_PROTOS(fsname) \ 278 int fsname##_fs_unmount(struct puffs_usermount *, int); \ 279 int fsname##_fs_statvfs(struct puffs_usermount *, \ 280 struct statvfs *); \ 281 int fsname##_fs_sync(struct puffs_usermount *, int, \ 282 const struct puffs_cred *cred); \ 283 int fsname##_fs_fhtonode(struct puffs_usermount *, void *, \ 284 size_t, struct puffs_newinfo *); \ 285 int fsname##_fs_nodetofh(struct puffs_usermount *, void *cookie,\ 286 void *, size_t *); \ 287 void fsname##_fs_suspend(struct puffs_usermount *, int); \ 288 \ 289 int fsname##_node_lookup(struct puffs_usermount *, \ 290 void *, struct puffs_newinfo *, const struct puffs_cn *); \ 291 int fsname##_node_create(struct puffs_usermount *, \ 292 void *, struct puffs_newinfo *, const struct puffs_cn *, \ 293 const struct vattr *); \ 294 int fsname##_node_mknod(struct puffs_usermount *, \ 295 void *, struct puffs_newinfo *, const struct puffs_cn *, \ 296 const struct vattr *); \ 297 int fsname##_node_open(struct puffs_usermount *, \ 298 void *, int, const struct puffs_cred *); \ 299 int fsname##_node_close(struct puffs_usermount *, \ 300 void *, int, const struct puffs_cred *); \ 301 int fsname##_node_access(struct puffs_usermount *, \ 302 void *, int, const struct puffs_cred *); \ 303 int fsname##_node_getattr(struct puffs_usermount *, \ 304 void *, struct vattr *, const struct puffs_cred *); \ 305 int fsname##_node_setattr(struct puffs_usermount *, \ 306 void *, const struct vattr *, const struct puffs_cred *); \ 307 int fsname##_node_poll(struct puffs_usermount *, void *, int *);\ 308 int fsname##_node_mmap(struct puffs_usermount *, \ 309 void *, vm_prot_t, const struct puffs_cred *); \ 310 int fsname##_node_fsync(struct puffs_usermount *, \ 311 void *, const struct puffs_cred *, int, off_t, off_t); \ 312 int fsname##_node_seek(struct puffs_usermount *, \ 313 void *, off_t, off_t, const struct puffs_cred *); \ 314 int fsname##_node_remove(struct puffs_usermount *, \ 315 void *, void *, const struct puffs_cn *); \ 316 int fsname##_node_link(struct puffs_usermount *, \ 317 void *, void *, const struct puffs_cn *); \ 318 int fsname##_node_rename(struct puffs_usermount *, \ 319 void *, void *, const struct puffs_cn *, void *, void *, \ 320 const struct puffs_cn *); \ 321 int fsname##_node_mkdir(struct puffs_usermount *, \ 322 void *, struct puffs_newinfo *, const struct puffs_cn *, \ 323 const struct vattr *); \ 324 int fsname##_node_rmdir(struct puffs_usermount *, \ 325 void *, void *, const struct puffs_cn *); \ 326 int fsname##_node_symlink(struct puffs_usermount *, \ 327 void *, struct puffs_newinfo *, const struct puffs_cn *, \ 328 const struct vattr *, const char *); \ 329 int fsname##_node_readdir(struct puffs_usermount *, \ 330 void *, struct dirent *, off_t *, size_t *, \ 331 const struct puffs_cred *, int *, off_t *, size_t *); \ 332 int fsname##_node_readlink(struct puffs_usermount *, \ 333 void *, const struct puffs_cred *, char *, size_t *); \ 334 int fsname##_node_reclaim(struct puffs_usermount *, void *); \ 335 int fsname##_node_inactive(struct puffs_usermount *, void *); \ 336 int fsname##_node_print(struct puffs_usermount *, \ 337 void *); \ 338 int fsname##_node_pathconf(struct puffs_usermount *, \ 339 void *, int, int *); \ 340 int fsname##_node_advlock(struct puffs_usermount *, \ 341 void *, void *, int, struct flock *, int); \ 342 int fsname##_node_read(struct puffs_usermount *, void *, \ 343 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\ 344 int fsname##_node_write(struct puffs_usermount *, void *, \ 345 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\ 346 \ 347 int fsname##_cache_write(struct puffs_usermount *, void *, \ 348 size_t, struct puffs_cacheinfo *); 349 350 #define PUFFSOP_INIT(ops) \ 351 ops = malloc(sizeof(struct puffs_ops)); \ 352 memset(ops, 0, sizeof(struct puffs_ops)) 353 #define PUFFSOP_SET(ops, fsname, fsornode, opname) \ 354 (ops)->puffs_##fsornode##_##opname = fsname##_##fsornode##_##opname 355 #define PUFFSOP_SETFSNOP(ops, opname) \ 356 (ops)->puffs_fs_##opname = puffs_fsnop_##opname 357 358 PUFFSOP_PROTOS(puffs_null) /* XXX */ 359 360 #define PUFFS_DEVEL_LIBVERSION 31 361 #define puffs_init(a,b,c,d,e) \ 362 _puffs_init(PUFFS_DEVEL_LIBVERSION,a,b,c,d,e) 363 364 365 #define PNPATH(pnode) ((pnode)->pn_po.po_path) 366 #define PNPLEN(pnode) ((pnode)->pn_po.po_len) 367 #define PCNPATH(pcnode) ((pcnode)->pcn_po_full.po_path) 368 #define PCNPLEN(pcnode) ((pcnode)->pcn_po_full.po_len) 369 #define PCNISDOTDOT(pcnode) \ 370 ((pcnode)->pcn_namelen == 2 && strcmp((pcnode)->pcn_name, "..") == 0) 371 372 #define PUFFS_STORE_DCOOKIE(cp, ncp, off) \ 373 if (cp) { \ 374 *((cp)++) = off; \ 375 (*(ncp))++; \ 376 } 377 378 /* mainloop */ 379 typedef void (*puffs_ml_loop_fn)(struct puffs_usermount *); 380 381 /* framebuf stuff */ 382 struct puffs_framebuf; 383 typedef int (*puffs_framev_readframe_fn)(struct puffs_usermount *, 384 struct puffs_framebuf *, 385 int, int *); 386 typedef int (*puffs_framev_writeframe_fn)(struct puffs_usermount *, 387 struct puffs_framebuf *, 388 int, int *); 389 typedef int (*puffs_framev_cmpframe_fn)(struct puffs_usermount *, 390 struct puffs_framebuf *, 391 struct puffs_framebuf *, 392 int *); 393 typedef void (*puffs_framev_fdnotify_fn)(struct puffs_usermount *, int, int); 394 typedef void (*puffs_framev_gotframe_fn)(struct puffs_usermount *, 395 struct puffs_framebuf *); 396 typedef void (*puffs_framev_cb)(struct puffs_usermount *, 397 struct puffs_framebuf *, 398 void *, int); 399 #define PUFFS_FBIO_READ 0x01 400 #define PUFFS_FBIO_WRITE 0x02 401 #define PUFFS_FBIO_ERROR 0x04 402 403 #define PUFFS_FBQUEUE_URGENT 0x01 404 405 406 __BEGIN_DECLS 407 408 struct puffs_usermount *_puffs_init(int, struct puffs_ops *, const char *, 409 const char *, void *, uint32_t); 410 int puffs_mount(struct puffs_usermount *, const char *, int, void*); 411 int puffs_exit(struct puffs_usermount *, int); 412 int puffs_mainloop(struct puffs_usermount *); 413 int puffs_daemon(struct puffs_usermount *, int, int); 414 415 416 int puffs_getselectable(struct puffs_usermount *); 417 int puffs_setblockingmode(struct puffs_usermount *, int); 418 int puffs_getstate(struct puffs_usermount *); 419 void puffs_setstacksize(struct puffs_usermount *, size_t); 420 421 void puffs_ml_setloopfn(struct puffs_usermount *, puffs_ml_loop_fn); 422 void puffs_ml_settimeout(struct puffs_usermount *, struct timespec *); 423 424 void puffs_setroot(struct puffs_usermount *, 425 struct puffs_node *); 426 struct puffs_node *puffs_getroot(struct puffs_usermount *); 427 void puffs_setrootinfo(struct puffs_usermount *, 428 enum vtype, vsize_t, dev_t); 429 430 void *puffs_getspecific(struct puffs_usermount *); 431 void puffs_setmaxreqlen(struct puffs_usermount *, size_t); 432 size_t puffs_getmaxreqlen(struct puffs_usermount *); 433 void puffs_setfhsize(struct puffs_usermount *, size_t, int); 434 435 void puffs_setncookiehash(struct puffs_usermount *, int); 436 437 struct puffs_pathobj *puffs_getrootpathobj(struct puffs_usermount *); 438 439 void puffs_setback(struct puffs_cc *, int); 440 441 struct puffs_node *puffs_pn_new(struct puffs_usermount *, void *); 442 void puffs_pn_remove(struct puffs_node *); 443 void puffs_pn_put(struct puffs_node *); 444 struct vattr *puffs_pn_getvap(struct puffs_node *); 445 void * puffs_pn_getpriv(struct puffs_node *); 446 void puffs_pn_setpriv(struct puffs_node *, void *); 447 struct puffs_pathobj *puffs_pn_getpo(struct puffs_node *); 448 struct puffs_usermount *puffs_pn_getmnt(struct puffs_node *); 449 450 void puffs_newinfo_setcookie(struct puffs_newinfo *, void *); 451 void puffs_newinfo_setvtype(struct puffs_newinfo *, enum vtype); 452 void puffs_newinfo_setsize(struct puffs_newinfo *, voff_t); 453 void puffs_newinfo_setrdev(struct puffs_newinfo *, dev_t); 454 455 void *puffs_pn_getmntspecific(struct puffs_node *); 456 457 typedef void * (*puffs_nodewalk_fn)(struct puffs_usermount *, 458 struct puffs_node *, void *); 459 void *puffs_pn_nodewalk(struct puffs_usermount *, 460 puffs_nodewalk_fn, void *); 461 462 void puffs_setvattr(struct vattr *, const struct vattr *); 463 void puffs_vattr_null(struct vattr *); 464 465 void puffs_null_setops(struct puffs_ops *); 466 467 /* 468 * generic/dummy routines applicable for some file systems 469 */ 470 int puffs_fsnop_unmount(struct puffs_usermount *, int); 471 int puffs_fsnop_statvfs(struct puffs_usermount *, struct statvfs *); 472 void puffs_zerostatvfs(struct statvfs *); 473 int puffs_fsnop_sync(struct puffs_usermount *, int waitfor, 474 const struct puffs_cred *); 475 int puffs_genfs_node_reclaim(struct puffs_usermount *, void *); 476 477 /* 478 * Subroutine stuff 479 */ 480 481 int puffs_gendotdent(struct dirent **, ino_t, int, size_t *); 482 int puffs_nextdent(struct dirent **, const char *, ino_t, 483 uint8_t, size_t *); 484 int puffs_vtype2dt(enum vtype); 485 enum vtype puffs_mode2vt(mode_t); 486 void puffs_stat2vattr(struct vattr *va, const struct stat *); 487 mode_t puffs_addvtype2mode(mode_t, enum vtype); 488 489 490 /* 491 * credentials & permissions 492 */ 493 494 /* Credential fetch */ 495 int puffs_cred_getuid(const struct puffs_cred *, uid_t *); 496 int puffs_cred_getgid(const struct puffs_cred *, gid_t *); 497 int puffs_cred_getgroups(const struct puffs_cred *, gid_t *, short *); 498 499 /* Credential check */ 500 bool puffs_cred_isuid(const struct puffs_cred *, uid_t); 501 bool puffs_cred_hasgroup(const struct puffs_cred *, gid_t); 502 bool puffs_cred_isregular(const struct puffs_cred *); 503 bool puffs_cred_iskernel(const struct puffs_cred *); 504 bool puffs_cred_isfs(const struct puffs_cred *); 505 bool puffs_cred_isjuggernaut(const struct puffs_cred *); 506 507 /* Caller ID */ 508 int puffs_cid_getpid(const struct puffs_cid *, pid_t *); 509 int puffs_cid_getlwpid(const struct puffs_cid *, lwpid_t *); 510 bool puffs_cid_isequal(const struct puffs_cid *, const struct puffs_cid *); 511 512 /* misc */ 513 int puffs_access(enum vtype, mode_t, uid_t, gid_t, mode_t, 514 const struct puffs_cred *); 515 int puffs_access_chown(uid_t, gid_t, uid_t, gid_t, 516 const struct puffs_cred *); 517 int puffs_access_chmod(uid_t, gid_t, enum vtype, mode_t, 518 const struct puffs_cred *); 519 int puffs_access_times(uid_t, gid_t, mode_t, int, 520 const struct puffs_cred *); 521 522 523 /* 524 * Call Context interfaces relevant for user. 525 */ 526 527 void puffs_cc_yield(struct puffs_cc *); 528 void puffs_cc_continue(struct puffs_cc *); 529 void puffs_cc_schedule(struct puffs_cc *); 530 struct puffs_usermount *puffs_cc_getusermount(struct puffs_cc *); 531 void *puffs_cc_getspecific(struct puffs_cc *); 532 int puffs_cc_getcaller(struct puffs_cc *,pid_t *,lwpid_t *); 533 struct puffs_cc *puffs_cc_getcc(struct puffs_usermount *); 534 535 /* 536 * Flushing / invalidation routines 537 */ 538 539 int puffs_inval_namecache_dir(struct puffs_usermount *, void *); 540 int puffs_inval_namecache_all(struct puffs_usermount *); 541 542 int puffs_inval_pagecache_node(struct puffs_usermount *, void *); 543 int puffs_inval_pagecache_node_range(struct puffs_usermount *, void *, 544 off_t, off_t); 545 int puffs_flush_pagecache_node(struct puffs_usermount *, void *); 546 int puffs_flush_pagecache_node_range(struct puffs_usermount *, void *, 547 off_t, off_t); 548 549 /* 550 * Path constructicons 551 */ 552 553 int puffs_stdpath_buildpath(struct puffs_usermount *, 554 const struct puffs_pathobj *, 555 const struct puffs_pathobj *, size_t, 556 struct puffs_pathobj *); 557 int puffs_stdpath_cmppath(struct puffs_usermount *, struct puffs_pathobj *, 558 struct puffs_pathobj *, size_t, int); 559 void puffs_stdpath_freepath(struct puffs_usermount *,struct puffs_pathobj *); 560 561 void *puffs_path_walkcmp(struct puffs_usermount *, 562 struct puffs_node *, void *); 563 void *puffs_path_prefixadj(struct puffs_usermount *, 564 struct puffs_node *, void *); 565 int puffs_path_pcnbuild(struct puffs_usermount *, 566 struct puffs_cn *, void *); 567 void puffs_path_buildhash(struct puffs_usermount *, struct puffs_pathobj *); 568 void puffs_set_pathbuild(struct puffs_usermount *, pu_pathbuild_fn); void puffs_set_pathtransform(struct puffs_usermount *, pu_pathtransform_fn); 569 void puffs_set_pathcmp(struct puffs_usermount *, pu_pathcmp_fn); 570 void puffs_set_pathfree(struct puffs_usermount *, pu_pathfree_fn); 571 void puffs_set_namemod(struct puffs_usermount *, pu_namemod_fn); 572 573 void puffs_set_errnotify(struct puffs_usermount *, pu_errnotify_fn); 574 void puffs_set_prepost(struct puffs_usermount *, 575 pu_prepost_fn, pu_prepost_fn); 576 577 /* 578 * Suspension 579 */ 580 581 int puffs_fs_suspend(struct puffs_usermount *); 582 583 /* 584 * Frame buffering 585 */ 586 587 void puffs_framev_init(struct puffs_usermount *, 588 puffs_framev_readframe_fn, 589 puffs_framev_writeframe_fn, 590 puffs_framev_cmpframe_fn, 591 puffs_framev_gotframe_fn, 592 puffs_framev_fdnotify_fn); 593 594 struct puffs_framebuf *puffs_framebuf_make(void); 595 void puffs_framebuf_destroy(struct puffs_framebuf *); 596 int puffs_framebuf_dup(struct puffs_framebuf *, 597 struct puffs_framebuf **); 598 void puffs_framebuf_recycle(struct puffs_framebuf *); 599 int puffs_framebuf_reserve_space(struct puffs_framebuf *, 600 size_t); 601 602 int puffs_framebuf_putdata(struct puffs_framebuf *, const void *, size_t); 603 int puffs_framebuf_putdata_atoff(struct puffs_framebuf *, size_t, 604 const void *, size_t); 605 int puffs_framebuf_getdata(struct puffs_framebuf *, void *, size_t); 606 int puffs_framebuf_getdata_atoff(struct puffs_framebuf *, size_t, 607 void *, size_t); 608 609 size_t puffs_framebuf_telloff(struct puffs_framebuf *); 610 size_t puffs_framebuf_tellsize(struct puffs_framebuf *); 611 size_t puffs_framebuf_remaining(struct puffs_framebuf *); 612 int puffs_framebuf_seekset(struct puffs_framebuf *, size_t); 613 int puffs_framebuf_getwindow(struct puffs_framebuf *, size_t, 614 void **, size_t *); 615 616 int puffs_framev_enqueue_cc(struct puffs_cc *, int, 617 struct puffs_framebuf *, int); 618 int puffs_framev_enqueue_cb(struct puffs_usermount *, int, 619 struct puffs_framebuf *, 620 puffs_framev_cb, void *, int); 621 int puffs_framev_enqueue_justsend(struct puffs_usermount *, int, 622 struct puffs_framebuf *, int, int); 623 int puffs_framev_enqueue_directreceive(struct puffs_cc *, int, 624 struct puffs_framebuf *, int); 625 int puffs_framev_enqueue_directsend(struct puffs_cc *, int, 626 struct puffs_framebuf *, int); 627 int puffs_framev_enqueue_waitevent(struct puffs_cc *, int, int *); 628 int puffs_framev_framebuf_ccpromote(struct puffs_framebuf *, 629 struct puffs_cc *); 630 631 int puffs_framev_addfd(struct puffs_usermount *, int, int); 632 int puffs_framev_enablefd(struct puffs_usermount *, int, int); 633 int puffs_framev_disablefd(struct puffs_usermount *, int, int); 634 int puffs_framev_removefd(struct puffs_usermount *, int, int); 635 void puffs_framev_removeonclose(struct puffs_usermount *, int, int); 636 void puffs_framev_unmountonclose(struct puffs_usermount *, int, int); 637 638 __END_DECLS 639 640 #endif /* _PUFFS_H_ */ 641
Indexes created Mon Sep 29 21:09:56 GMT 2025