puffs.h revision 1.67
1 /* $NetBSD: puffs.h,v 1.67 2007/07/01 15:30:15 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/stat.h> 39 #include <sys/statvfs.h> 40 #include <sys/time.h> 41 #include <sys/vnode.h> 42 43 #include <fs/puffs/puffs_msgif.h> 44 45 #include <mntopts.h> 46 #include <string.h> 47 48 /* forwards */ 49 struct puffs_cc; 50 51 struct puffs_getreq; 52 struct puffs_putreq; 53 struct puffs_cred; 54 55 /* paths */ 56 struct puffs_pathobj { 57 void *po_path; 58 size_t po_len; 59 uint32_t po_hash; 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_flags; 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 #define PUFFS_NODE_REMOVED 0x01 /* not on entry list */ 92 93 94 struct puffs_usermount; 95 96 /* 97 * megaXXX: these are values from inside _KERNEL 98 * need to work on the translation for ALL the necessary values. 99 */ 100 #define PUFFS_VNOVAL (-1) 101 #define PUFFS_IO_APPEND 0x20 102 #define PUFFS_VEXEC 01 103 #define PUFFS_VWRITE 02 104 #define PUFFS_VREAD 04 105 106 #define PUFFS_FSYNC_DATAONLY 0x0002 107 #define PUFFS_FSYNC_CACHE 0x0100 108 109 /* 110 * Magic constants 111 */ 112 #define PUFFS_CC_STACKSIZE_DEFAULT (1024*1024) 113 114 struct puffs_cn { 115 struct puffs_kcn *pcn_pkcnp; /* kernel input */ 116 117 struct puffs_cred *pcn_cred; /* cred used for lookup */ 118 119 struct puffs_pathobj pcn_po_full; /* PUFFS_FLAG_BUILDPATH */ 120 }; 121 #define pcn_nameiop pcn_pkcnp->pkcn_nameiop 122 #define pcn_flags pcn_pkcnp->pkcn_flags 123 #define pcn_pid pcn_pkcnp->pkcn_pid 124 #define pcn_name pcn_pkcnp->pkcn_name 125 #define pcn_namelen pcn_pkcnp->pkcn_namelen 126 127 /* 128 * Puffs options to mount 129 */ 130 /* kernel */ 131 #define PUFFSMOPT_NAMECACHE { "namecache", 1, PUFFS_KFLAG_NOCACHE_NAME, 1 } 132 #define PUFFSMOPT_PAGECACHE { "pagecache", 1, PUFFS_KFLAG_NOCACHE_PAGE, 1 } 133 #define PUFFSMOPT_CACHE { "cache", 1, PUFFS_KFLAG_NOCACHE, 1 } 134 #define PUFFSMOPT_ALLOPS { "allops", 0, PUFFS_KFLAG_ALLOPS, 1 } 135 136 /* libpuffs */ 137 #define PUFFSMOPT_DUMP { "dump", 0, PUFFS_FLAG_OPDUMP, 1 } 138 139 #define PUFFSMOPT_STD \ 140 PUFFSMOPT_NAMECACHE, \ 141 PUFFSMOPT_PAGECACHE, \ 142 PUFFSMOPT_CACHE, \ 143 PUFFSMOPT_ALLOPS, \ 144 PUFFSMOPT_DUMP 145 146 extern const struct mntopt puffsmopts[]; /* puffs.c */ 147 148 /* callbacks for operations */ 149 struct puffs_ops { 150 int (*puffs_fs_unmount)(struct puffs_cc *, int, pid_t); 151 int (*puffs_fs_statvfs)(struct puffs_cc *, 152 struct statvfs *, pid_t); 153 int (*puffs_fs_sync)(struct puffs_cc *, int, 154 const struct puffs_cred *, pid_t); 155 int (*puffs_fs_fhtonode)(struct puffs_cc *, void *, size_t, 156 void **, enum vtype *, voff_t *, dev_t *); 157 int (*puffs_fs_nodetofh)(struct puffs_cc *, void *cookie, 158 void *, size_t *); 159 void (*puffs_fs_suspend)(struct puffs_cc *, int); 160 161 int (*puffs_node_lookup)(struct puffs_cc *, 162 void *, void **, enum vtype *, voff_t *, dev_t *, 163 const struct puffs_cn *); 164 int (*puffs_node_create)(struct puffs_cc *, 165 void *, void **, const struct puffs_cn *, const struct vattr *); 166 int (*puffs_node_mknod)(struct puffs_cc *, 167 void *, void **, const struct puffs_cn *, const struct vattr *); 168 int (*puffs_node_open)(struct puffs_cc *, 169 void *, int, const struct puffs_cred *, pid_t); 170 int (*puffs_node_close)(struct puffs_cc *, 171 void *, int, const struct puffs_cred *, pid_t); 172 int (*puffs_node_access)(struct puffs_cc *, 173 void *, int, const struct puffs_cred *, pid_t); 174 int (*puffs_node_getattr)(struct puffs_cc *, 175 void *, struct vattr *, const struct puffs_cred *, pid_t); 176 int (*puffs_node_setattr)(struct puffs_cc *, 177 void *, const struct vattr *, const struct puffs_cred *, pid_t); 178 int (*puffs_node_poll)(struct puffs_cc *, void *, int *, pid_t); 179 int (*puffs_node_mmap)(struct puffs_cc *, 180 void *, int, const struct puffs_cred *, pid_t); 181 int (*puffs_node_fsync)(struct puffs_cc *, 182 void *, const struct puffs_cred *, int, off_t, off_t, pid_t); 183 int (*puffs_node_seek)(struct puffs_cc *, 184 void *, off_t, off_t, const struct puffs_cred *); 185 int (*puffs_node_remove)(struct puffs_cc *, 186 void *, void *, const struct puffs_cn *); 187 int (*puffs_node_link)(struct puffs_cc *, 188 void *, void *, const struct puffs_cn *); 189 int (*puffs_node_rename)(struct puffs_cc *, 190 void *, void *, const struct puffs_cn *, void *, void *, 191 const struct puffs_cn *); 192 int (*puffs_node_mkdir)(struct puffs_cc *, 193 void *, void **, const struct puffs_cn *, const struct vattr *); 194 int (*puffs_node_rmdir)(struct puffs_cc *, 195 void *, void *, const struct puffs_cn *); 196 int (*puffs_node_symlink)(struct puffs_cc *, 197 void *, void **, const struct puffs_cn *, const struct vattr *, 198 const char *); 199 int (*puffs_node_readdir)(struct puffs_cc *, 200 void *, struct dirent *, off_t *, size_t *, 201 const struct puffs_cred *, int *, off_t *, size_t *); 202 int (*puffs_node_readlink)(struct puffs_cc *, 203 void *, const struct puffs_cred *, char *, size_t *); 204 int (*puffs_node_reclaim)(struct puffs_cc *, 205 void *, pid_t); 206 int (*puffs_node_inactive)(struct puffs_cc *, 207 void *, pid_t, int *); 208 int (*puffs_node_print)(struct puffs_cc *, 209 void *); 210 int (*puffs_node_pathconf)(struct puffs_cc *, 211 void *, int, int *); 212 int (*puffs_node_advlock)(struct puffs_cc *, 213 void *, void *, int, struct flock *, int); 214 int (*puffs_node_getextattr)(struct puffs_cc *, 215 void *, struct puffs_vnreq_getextattr *); 216 int (*puffs_node_setextattr)(struct puffs_cc *, 217 void *, struct puffs_vnreq_setextattr *); 218 int (*puffs_node_listextattr)(struct puffs_cc *, 219 void *, struct puffs_vnreq_listextattr *); 220 int (*puffs_node_read)(struct puffs_cc *, void *, 221 uint8_t *, off_t, size_t *, const struct puffs_cred *, int); 222 int (*puffs_node_write)(struct puffs_cc *, void *, 223 uint8_t *, off_t, size_t *, const struct puffs_cred *, int); 224 225 int (*puffs_cache_write)(struct puffs_usermount *, 226 void *, size_t, struct puffs_cacherun *); 227 }; 228 229 typedef int (*pu_pathbuild_fn)(struct puffs_usermount *, 230 const struct puffs_pathobj *, 231 const struct puffs_pathobj *, size_t, 232 struct puffs_pathobj *); 233 typedef int (*pu_pathtransform_fn)(struct puffs_usermount *, 234 const struct puffs_pathobj *, 235 const struct puffs_cn *, 236 struct puffs_pathobj *); 237 typedef int (*pu_pathcmp_fn)(struct puffs_usermount *, struct puffs_pathobj *, 238 struct puffs_pathobj *, size_t, int); 239 typedef void (*pu_pathfree_fn)(struct puffs_usermount *, 240 struct puffs_pathobj *); 241 typedef int (*pu_namemod_fn)(struct puffs_usermount *, 242 struct puffs_pathobj *, struct puffs_cn *); 243 244 enum { 245 PUFFS_STATE_BEFOREMOUNT, PUFFS_STATE_RUNNING, 246 PUFFS_STATE_UNMOUNTING, PUFFS_STATE_UNMOUNTED 247 }; 248 249 #define PUFFS_FLAG_BUILDPATH 0x80000000 /* node paths in pnode */ 250 #define PUFFS_FLAG_OPDUMP 0x40000000 /* dump all operations */ 251 #define PUFFS_FLAG_HASHPATH 0x20000000 /* speedup: hash paths */ 252 #define PUFFS_FLAG_MASK 0xe0000000 253 254 #define PUFFS_FLAG_KERN(a) ((a) & PUFFS_KFLAG_MASK) 255 #define PUFFS_FLAG_LIB(a) ((a) & PUFFS_FLAG_MASK) 256 257 /* blocking mode argument */ 258 #define PUFFSDEV_BLOCK 0 259 #define PUFFSDEV_NONBLOCK 1 260 261 /* mainloop flags */ 262 #define PUFFSLOOP_NODAEMON 0x01 263 264 #define DENT_DOT 0 265 #define DENT_DOTDOT 1 266 #define DENT_ADJ(a) ((a)-2) /* nth request means dir's n-2th */ 267 268 269 /* 270 * protos 271 */ 272 273 #define PUFFSOP_PROTOS(fsname) \ 274 int fsname##_fs_mount(struct puffs_usermount *, void **, \ 275 struct statvfs *); \ 276 int fsname##_fs_unmount(struct puffs_cc *, int, pid_t); \ 277 int fsname##_fs_statvfs(struct puffs_cc *, \ 278 struct statvfs *, pid_t); \ 279 int fsname##_fs_sync(struct puffs_cc *, int, \ 280 const struct puffs_cred *cred, pid_t); \ 281 int fsname##_fs_fhtonode(struct puffs_cc *, void *, size_t, \ 282 void **, enum vtype *, voff_t *, dev_t *); \ 283 int fsname##_fs_nodetofh(struct puffs_cc *, void *cookie, \ 284 void *, size_t *); \ 285 void fsname##_fs_suspend(struct puffs_cc *, int); \ 286 \ 287 int fsname##_node_lookup(struct puffs_cc *, \ 288 void *, void **, enum vtype *, voff_t *, dev_t *, \ 289 const struct puffs_cn *); \ 290 int fsname##_node_create(struct puffs_cc *, \ 291 void *, void **, const struct puffs_cn *, \ 292 const struct vattr *); \ 293 int fsname##_node_mknod(struct puffs_cc *, \ 294 void *, void **, const struct puffs_cn *, \ 295 const struct vattr *); \ 296 int fsname##_node_open(struct puffs_cc *, \ 297 void *, int, const struct puffs_cred *, pid_t); \ 298 int fsname##_node_close(struct puffs_cc *, \ 299 void *, int, const struct puffs_cred *, pid_t); \ 300 int fsname##_node_access(struct puffs_cc *, \ 301 void *, int, const struct puffs_cred *, pid_t); \ 302 int fsname##_node_getattr(struct puffs_cc *, \ 303 void *, struct vattr *, const struct puffs_cred *, pid_t); \ 304 int fsname##_node_setattr(struct puffs_cc *, \ 305 void *, const struct vattr *, const struct puffs_cred *, \ 306 pid_t); \ 307 int fsname##_node_poll(struct puffs_cc *, void *, int *,pid_t); \ 308 int fsname##_node_mmap(struct puffs_cc *, \ 309 void *, int, const struct puffs_cred *, pid_t); \ 310 int fsname##_node_fsync(struct puffs_cc *, \ 311 void *, const struct puffs_cred *, int, off_t, off_t, \ 312 pid_t); \ 313 int fsname##_node_seek(struct puffs_cc *, \ 314 void *, off_t, off_t, const struct puffs_cred *); \ 315 int fsname##_node_remove(struct puffs_cc *, \ 316 void *, void *, const struct puffs_cn *); \ 317 int fsname##_node_link(struct puffs_cc *, \ 318 void *, void *, const struct puffs_cn *); \ 319 int fsname##_node_rename(struct puffs_cc *, \ 320 void *, void *, const struct puffs_cn *, void *, void *, \ 321 const struct puffs_cn *); \ 322 int fsname##_node_mkdir(struct puffs_cc *, \ 323 void *, void **, const struct puffs_cn *, \ 324 const struct vattr *); \ 325 int fsname##_node_rmdir(struct puffs_cc *, \ 326 void *, void *, const struct puffs_cn *); \ 327 int fsname##_node_symlink(struct puffs_cc *, \ 328 void *, void **, const struct puffs_cn *, \ 329 const struct vattr *, const char *); \ 330 int fsname##_node_readdir(struct puffs_cc *, \ 331 void *, struct dirent *, off_t *, size_t *, \ 332 const struct puffs_cred *, int *, off_t *, size_t *); \ 333 int fsname##_node_readlink(struct puffs_cc *, \ 334 void *, const struct puffs_cred *, char *, size_t *); \ 335 int fsname##_node_reclaim(struct puffs_cc *, \ 336 void *, pid_t); \ 337 int fsname##_node_inactive(struct puffs_cc *, \ 338 void *, pid_t, int *); \ 339 int fsname##_node_print(struct puffs_cc *, \ 340 void *); \ 341 int fsname##_node_pathconf(struct puffs_cc *, \ 342 void *, int, int *); \ 343 int fsname##_node_advlock(struct puffs_cc *, \ 344 void *, void *, int, struct flock *, int); \ 345 int fsname##_node_getextattr(struct puffs_cc *, \ 346 void *, struct puffs_vnreq_getextattr *); \ 347 int fsname##_node_setextattr(struct puffs_cc *, \ 348 void *, struct puffs_vnreq_setextattr *); \ 349 int fsname##_node_listextattr(struct puffs_cc *, \ 350 void *, struct puffs_vnreq_listextattr *); \ 351 int fsname##_node_read(struct puffs_cc *, void *, \ 352 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\ 353 int fsname##_node_write(struct puffs_cc *, void *, \ 354 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\ 355 \ 356 int fsname##_cache_write(struct puffs_usermount *, void *, \ 357 size_t, struct puffs_cacheinfo *); 358 359 #define PUFFSOP_INIT(ops) \ 360 ops = malloc(sizeof(struct puffs_ops)); \ 361 memset(ops, 0, sizeof(struct puffs_ops)) 362 #define PUFFSOP_SET(ops, fsname, fsornode, opname) \ 363 (ops)->puffs_##fsornode##_##opname = fsname##_##fsornode##_##opname 364 #define PUFFSOP_SETFSNOP(ops, opname) \ 365 (ops)->puffs_fs_##opname = puffs_fsnop_##opname 366 367 PUFFSOP_PROTOS(puffs_null) /* XXX */ 368 369 #define PUFFS_DEVEL_LIBVERSION 21 370 #define puffs_init(a,b,c,d) \ 371 _puffs_init(PUFFS_DEVEL_LIBVERSION,a,b,c,d) 372 373 374 #define PNPATH(pnode) ((pnode)->pn_po.po_path) 375 #define PNPLEN(pnode) ((pnode)->pn_po.po_len) 376 #define PCNPATH(pcnode) ((pcnode)->pcn_po_full.po_path) 377 #define PCNPLEN(pcnode) ((pcnode)->pcn_po_full.po_len) 378 #define PCNISDOTDOT(pcnode) \ 379 ((pcnode)->pcn_namelen == 2 && strcmp((pcnode)->pcn_name, "..") == 0) 380 381 #define PUFFS_STORE_DCOOKIE(cp, ncp, off) \ 382 if (cp) { \ 383 *((cp)++) = off; \ 384 (*(ncp))++; \ 385 } 386 387 /* mainloop */ 388 typedef void (*puffs_ml_loop_fn)(struct puffs_usermount *); 389 390 /* framebuf stuff */ 391 struct puffs_framebuf; 392 typedef int (*puffs_framev_readframe_fn)(struct puffs_usermount *, 393 struct puffs_framebuf *, 394 int, int *); 395 typedef int (*puffs_framev_writeframe_fn)(struct puffs_usermount *, 396 struct puffs_framebuf *, 397 int, int *); 398 typedef int (*puffs_framev_cmpframe_fn)(struct puffs_usermount *, 399 struct puffs_framebuf *, 400 struct puffs_framebuf *); 401 typedef void (*puffs_framev_fdnotify_fn)(struct puffs_usermount *, int, int); 402 typedef void (*puffs_framev_cb)(struct puffs_usermount *, 403 struct puffs_framebuf *, 404 void *, int); 405 #define PUFFS_FBGONE_READ 0x01 406 #define PUFFS_FBGONE_WRITE 0x02 407 #define PUFFS_FBGONE_BOTH(a) ((a)==(PUFFS_FBGONE_READ|PUFFS_FBGONE_WRITE)) 408 409 410 __BEGIN_DECLS 411 412 struct puffs_usermount *_puffs_init(int, struct puffs_ops *pops, const char *, 413 void *, uint32_t); 414 int puffs_mount(struct puffs_usermount *, const char *, int, void*); 415 int puffs_exit(struct puffs_usermount *, int); 416 int puffs_mainloop(struct puffs_usermount *, int); 417 418 419 int puffs_getselectable(struct puffs_usermount *); 420 int puffs_setblockingmode(struct puffs_usermount *, int); 421 int puffs_getstate(struct puffs_usermount *); 422 void puffs_setstacksize(struct puffs_usermount *, size_t); 423 424 void puffs_ml_setloopfn(struct puffs_usermount *, puffs_ml_loop_fn); 425 void puffs_ml_settimeout(struct puffs_usermount *, struct timespec *); 426 427 void puffs_setroot(struct puffs_usermount *, 428 struct puffs_node *); 429 struct puffs_node *puffs_getroot(struct puffs_usermount *); 430 void puffs_setrootinfo(struct puffs_usermount *, 431 enum vtype, vsize_t, dev_t); 432 433 void *puffs_getspecific(struct puffs_usermount *); 434 void puffs_setmaxreqlen(struct puffs_usermount *, size_t); 435 size_t puffs_getmaxreqlen(struct puffs_usermount *); 436 void puffs_setfhsize(struct puffs_usermount *, size_t, int); 437 438 void puffs_setncookiehash(struct puffs_usermount *, int); 439 440 struct puffs_pathobj *puffs_getrootpathobj(struct puffs_usermount *); 441 442 void puffs_setback(struct puffs_cc *, int); 443 444 struct puffs_node *puffs_pn_new(struct puffs_usermount *, void *); 445 void puffs_pn_remove(struct puffs_node *); 446 void puffs_pn_put(struct puffs_node *); 447 448 void *puffs_pn_getmntspecific(struct puffs_node *); 449 450 typedef void * (*puffs_nodewalk_fn)(struct puffs_usermount *, 451 struct puffs_node *, void *); 452 void *puffs_pn_nodewalk(struct puffs_usermount *, 453 puffs_nodewalk_fn, void *); 454 455 void puffs_setvattr(struct vattr *, const struct vattr *); 456 void puffs_vattr_null(struct vattr *); 457 458 void puffs_null_setops(struct puffs_ops *); 459 460 /* 461 * generic/dummy routines applicable for some file systems 462 */ 463 int puffs_fsnop_unmount(struct puffs_cc *, int, pid_t); 464 int puffs_fsnop_statvfs(struct puffs_cc *, struct statvfs *, pid_t); 465 void puffs_zerostatvfs(struct statvfs *); 466 int puffs_fsnop_sync(struct puffs_cc *, int waitfor, 467 const struct puffs_cred *, pid_t); 468 int puffs_genfs_node_reclaim(struct puffs_cc *, void *, pid_t); 469 470 /* 471 * Subroutine stuff 472 */ 473 474 int puffs_gendotdent(struct dirent **, ino_t, int, size_t *); 475 int puffs_nextdent(struct dirent **, const char *, ino_t, 476 uint8_t, size_t *); 477 int puffs_vtype2dt(enum vtype); 478 enum vtype puffs_mode2vt(mode_t); 479 void puffs_stat2vattr(struct vattr *va, const struct stat *); 480 mode_t puffs_addvtype2mode(mode_t, enum vtype); 481 482 483 /* 484 * credentials & permissions 485 */ 486 487 /* Credential fetch */ 488 int puffs_cred_getuid(const struct puffs_cred *pcr, uid_t *); 489 int puffs_cred_getgid(const struct puffs_cred *pcr, gid_t *); 490 int puffs_cred_getgroups(const struct puffs_cred *pcr, gid_t *, short *); 491 492 /* Credential check */ 493 int puffs_cred_isuid(const struct puffs_cred *, uid_t); 494 int puffs_cred_hasgroup(const struct puffs_cred *, gid_t); 495 int puffs_cred_isregular(const struct puffs_cred *); 496 int puffs_cred_iskernel(const struct puffs_cred *); 497 int puffs_cred_isfs(const struct puffs_cred *); 498 int puffs_cred_isjuggernaut(const struct puffs_cred *); 499 500 /* misc */ 501 int puffs_access(enum vtype, mode_t, uid_t, gid_t, mode_t, 502 const struct puffs_cred *); 503 int puffs_access_chown(uid_t, gid_t, uid_t, gid_t, 504 const struct puffs_cred *); 505 int puffs_access_chmod(uid_t, gid_t, enum vtype, mode_t, 506 const struct puffs_cred *); 507 int puffs_access_times(uid_t, gid_t, mode_t, int, 508 const struct puffs_cred *); 509 510 511 /* 512 * Requests 513 */ 514 515 struct puffs_getreq *puffs_req_makeget(struct puffs_usermount *, 516 size_t, int); 517 int puffs_req_loadget(struct puffs_getreq *); 518 struct puffs_req *puffs_req_get(struct puffs_getreq *); 519 int puffs_req_remainingget(struct puffs_getreq *); 520 void puffs_req_setmaxget(struct puffs_getreq *, int); 521 void puffs_req_destroyget(struct puffs_getreq *); 522 523 struct puffs_putreq *puffs_req_makeput(struct puffs_usermount *); 524 void puffs_req_put(struct puffs_putreq *,struct puffs_req *); 525 void puffs_req_putcc(struct puffs_putreq *,struct puffs_cc*); 526 int puffs_req_putput(struct puffs_putreq *); 527 void puffs_req_resetput(struct puffs_putreq *); 528 void puffs_req_destroyput(struct puffs_putreq *); 529 530 int puffs_req_handle(struct puffs_getreq *, 531 struct puffs_putreq *, int); 532 533 /* 534 * Call Context interfaces relevant for user. 535 */ 536 537 void puffs_cc_yield(struct puffs_cc *); 538 void puffs_cc_continue(struct puffs_cc *); 539 struct puffs_usermount *puffs_cc_getusermount(struct puffs_cc *); 540 void *puffs_cc_getspecific(struct puffs_cc *); 541 struct puffs_cc *puffs_cc_create(struct puffs_usermount *); 542 void puffs_cc_destroy(struct puffs_cc *); 543 544 /* 545 * Execute or continue a request 546 */ 547 548 int puffs_dopreq(struct puffs_usermount *, struct puffs_req *, 549 struct puffs_putreq *); 550 void puffs_docc(struct puffs_cc *, struct puffs_putreq *); 551 552 /* 553 * Flushing / invalidation routines 554 */ 555 556 int puffs_inval_namecache_dir(struct puffs_usermount *, void *); 557 int puffs_inval_namecache_all(struct puffs_usermount *); 558 559 int puffs_inval_pagecache_node(struct puffs_usermount *, void *); 560 int puffs_inval_pagecache_node_range(struct puffs_usermount *, void *, 561 off_t, off_t); 562 int puffs_flush_pagecache_node(struct puffs_usermount *, void *); 563 int puffs_flush_pagecache_node_range(struct puffs_usermount *, void *, 564 off_t, off_t); 565 566 /* 567 * Path constructicons 568 */ 569 570 int puffs_stdpath_buildpath(struct puffs_usermount *, 571 const struct puffs_pathobj *, 572 const struct puffs_pathobj *, size_t, 573 struct puffs_pathobj *); 574 int puffs_stdpath_cmppath(struct puffs_usermount *, struct puffs_pathobj *, 575 struct puffs_pathobj *, size_t, int); 576 void puffs_stdpath_freepath(struct puffs_usermount *,struct puffs_pathobj *); 577 578 void *puffs_path_walkcmp(struct puffs_usermount *, 579 struct puffs_node *, void *); 580 void *puffs_path_prefixadj(struct puffs_usermount *, 581 struct puffs_node *, void *); 582 int puffs_path_pcnbuild(struct puffs_usermount *, 583 struct puffs_cn *, void *); 584 void puffs_path_buildhash(struct puffs_usermount *, struct puffs_pathobj *); 585 586 void puffs_set_pathbuild(struct puffs_usermount *, pu_pathbuild_fn); 587 void puffs_set_pathtransform(struct puffs_usermount *, pu_pathtransform_fn); 588 void puffs_set_pathcmp(struct puffs_usermount *, pu_pathcmp_fn); 589 void puffs_set_pathfree(struct puffs_usermount *, pu_pathfree_fn); 590 void puffs_set_namemod(struct puffs_usermount *, pu_namemod_fn); 591 592 /* 593 * Suspension 594 */ 595 596 int puffs_fs_suspend(struct puffs_usermount *); 597 598 /* 599 * Frame buffering 600 */ 601 602 void puffs_framev_init(struct puffs_usermount *, 603 puffs_framev_readframe_fn, 604 puffs_framev_writeframe_fn, 605 puffs_framev_cmpframe_fn, 606 puffs_framev_fdnotify_fn); 607 608 struct puffs_framebuf *puffs_framebuf_make(void); 609 void puffs_framebuf_destroy(struct puffs_framebuf *); 610 void puffs_framebuf_recycle(struct puffs_framebuf *); 611 int puffs_framebuf_reserve_space(struct puffs_framebuf *, 612 size_t); 613 614 int puffs_framebuf_putdata(struct puffs_framebuf *, const void *, size_t); 615 int puffs_framebuf_putdata_atoff(struct puffs_framebuf *, size_t, 616 const void *, size_t); 617 int puffs_framebuf_getdata(struct puffs_framebuf *, void *, size_t); 618 int puffs_framebuf_getdata_atoff(struct puffs_framebuf *, size_t, 619 void *, size_t); 620 621 size_t puffs_framebuf_telloff(struct puffs_framebuf *); 622 size_t puffs_framebuf_tellsize(struct puffs_framebuf *); 623 size_t puffs_framebuf_remaining(struct puffs_framebuf *); 624 int puffs_framebuf_seekset(struct puffs_framebuf *, size_t); 625 int puffs_framebuf_getwindow(struct puffs_framebuf *, size_t, 626 void **, size_t *); 627 628 int puffs_framev_enqueue_cc(struct puffs_cc *, int, 629 struct puffs_framebuf *); 630 int puffs_framev_enqueue_cb(struct puffs_usermount *, int, 631 struct puffs_framebuf *, 632 puffs_framev_cb, void *); 633 int puffs_framev_enqueue_justsend(struct puffs_usermount *, int, 634 struct puffs_framebuf *, int); 635 int puffs_framev_framebuf_ccpromote(struct puffs_framebuf *, 636 struct puffs_cc *); 637 638 int puffs_framev_addfd(struct puffs_usermount *pu, int); 639 int puffs_framev_removefd(struct puffs_usermount *pu, int, int); 640 void puffs_framev_unmountonclose(struct puffs_usermount *pu, int, int); 641 642 __END_DECLS 643 644 #endif /* _PUFFS_H_ */ 645
Indexes created Mon Sep 29 21:09:56 GMT 2025