puffs.h revision 1.52
1 /* $NetBSD: puffs.h,v 1.52 2007/05/07 17:16:07 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 * 3. The name of the company nor the name of the author may be used to 19 * endorse or promote products derived from this software without specific 20 * prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 23 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #ifndef _PUFFS_H_ 36 #define _PUFFS_H_ 37 38 #include <sys/param.h> 39 #include <sys/types.h> 40 #include <sys/mount.h> 41 #include <sys/stat.h> 42 #include <sys/statvfs.h> 43 #include <sys/vnode.h> 44 45 #include <fs/puffs/puffs_msgif.h> 46 47 #include <mntopts.h> 48 #include <string.h> 49 50 /* forwards */ 51 struct puffs_cc; 52 53 struct puffs_getreq; 54 struct puffs_putreq; 55 56 /* paths */ 57 struct puffs_pathobj { 58 void *po_path; 59 size_t po_len; 60 uint32_t po_hash; 61 }; 62 63 /* for prefix rename */ 64 struct puffs_pathinfo { 65 struct puffs_pathobj *pi_old; 66 struct puffs_pathobj *pi_new; 67 }; 68 69 /* describes one segment cached in the kernel */ 70 struct puffs_kcache { 71 off_t pkc_start; 72 off_t pkc_end; 73 74 LIST_ENTRY(puffs_kcache) pkc_entries; 75 }; 76 77 /* XXX: might disappear from here into a private header */ 78 struct puffs_node { 79 off_t pn_size; 80 int pn_flag; 81 struct vattr pn_va; 82 83 void *pn_data; /* private data */ 84 85 struct puffs_pathobj pn_po; /* PUFFS_FLAG_BUILDPATH */ 86 87 struct puffs_usermount *pn_mnt; 88 LIST_ENTRY(puffs_node) pn_entries; 89 90 LIST_HEAD(,puffs_kcache)pn_cacheinfo; /* PUFFS_KFLAG_CACHE */ 91 }; 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 struct puffs_pathobj pcn_po_full; /* PUFFS_FLAG_BUILDPATH */ 117 }; 118 #define pcn_nameiop pcn_pkcnp->pkcn_nameiop 119 #define pcn_flags pcn_pkcnp->pkcn_flags 120 #define pcn_pid pcn_pkcnp->pkcn_pid 121 #define pcn_cred pcn_pkcnp->pkcn_cred 122 #define pcn_name pcn_pkcnp->pkcn_name 123 #define pcn_namelen pcn_pkcnp->pkcn_namelen 124 125 /* 126 * Puffs options to mount 127 */ 128 /* kernel */ 129 #define PUFFSMOPT_CACHE { "cache", 1, PUFFS_KFLAG_NOCACHE, 1 } 130 #define PUFFSMOPT_ALLOPS { "allops", 0, PUFFS_KFLAG_ALLOPS, 1 } 131 132 /* libpuffs */ 133 #define PUFFSMOPT_DUMP { "dump", 0, PUFFS_FLAG_OPDUMP, 1 } 134 135 #define PUFFSMOPT_STD \ 136 PUFFSMOPT_CACHE, \ 137 PUFFSMOPT_ALLOPS, \ 138 PUFFSMOPT_DUMP 139 140 extern const struct mntopt puffsmopts[]; /* puffs.c */ 141 142 /* callbacks for operations */ 143 struct puffs_ops { 144 int (*puffs_fs_unmount)(struct puffs_cc *, int, pid_t); 145 int (*puffs_fs_statvfs)(struct puffs_cc *, 146 struct statvfs *, pid_t); 147 int (*puffs_fs_sync)(struct puffs_cc *, int, 148 const struct puffs_cred *, pid_t); 149 int (*puffs_fs_fhtonode)(struct puffs_cc *, void *, size_t, 150 void **, enum vtype *, voff_t *, dev_t *); 151 int (*puffs_fs_nodetofh)(struct puffs_cc *, void *cookie, 152 void *, size_t *); 153 void (*puffs_fs_suspend)(struct puffs_cc *, int); 154 155 int (*puffs_node_lookup)(struct puffs_cc *, 156 void *, void **, enum vtype *, voff_t *, dev_t *, 157 const struct puffs_cn *); 158 int (*puffs_node_create)(struct puffs_cc *, 159 void *, void **, const struct puffs_cn *, const struct vattr *); 160 int (*puffs_node_mknod)(struct puffs_cc *, 161 void *, void **, const struct puffs_cn *, const struct vattr *); 162 int (*puffs_node_open)(struct puffs_cc *, 163 void *, int, const struct puffs_cred *, pid_t); 164 int (*puffs_node_close)(struct puffs_cc *, 165 void *, int, const struct puffs_cred *, pid_t); 166 int (*puffs_node_access)(struct puffs_cc *, 167 void *, int, const struct puffs_cred *, pid_t); 168 int (*puffs_node_getattr)(struct puffs_cc *, 169 void *, struct vattr *, const struct puffs_cred *, pid_t); 170 int (*puffs_node_setattr)(struct puffs_cc *, 171 void *, const struct vattr *, const struct puffs_cred *, pid_t); 172 int (*puffs_node_poll)(struct puffs_cc *, 173 void *, struct puffs_vnreq_poll *); 174 int (*puffs_node_mmap)(struct puffs_cc *, 175 void *, int, const struct puffs_cred *, pid_t); 176 int (*puffs_node_fsync)(struct puffs_cc *, 177 void *, const struct puffs_cred *, int, off_t, off_t, pid_t); 178 int (*puffs_node_seek)(struct puffs_cc *, 179 void *, off_t, off_t, const struct puffs_cred *); 180 int (*puffs_node_remove)(struct puffs_cc *, 181 void *, void *, const struct puffs_cn *); 182 int (*puffs_node_link)(struct puffs_cc *, 183 void *, void *, const struct puffs_cn *); 184 int (*puffs_node_rename)(struct puffs_cc *, 185 void *, void *, const struct puffs_cn *, void *, void *, 186 const struct puffs_cn *); 187 int (*puffs_node_mkdir)(struct puffs_cc *, 188 void *, void **, const struct puffs_cn *, const struct vattr *); 189 int (*puffs_node_rmdir)(struct puffs_cc *, 190 void *, void *, const struct puffs_cn *); 191 int (*puffs_node_symlink)(struct puffs_cc *, 192 void *, void **, const struct puffs_cn *, const struct vattr *, 193 const char *); 194 int (*puffs_node_readdir)(struct puffs_cc *, 195 void *, struct dirent *, off_t *, size_t *, 196 const struct puffs_cred *, int *, off_t *, size_t *); 197 int (*puffs_node_readlink)(struct puffs_cc *, 198 void *, const struct puffs_cred *, char *, size_t *); 199 int (*puffs_node_reclaim)(struct puffs_cc *, 200 void *, pid_t); 201 int (*puffs_node_inactive)(struct puffs_cc *, 202 void *, pid_t, int *); 203 int (*puffs_node_print)(struct puffs_cc *, 204 void *); 205 int (*puffs_node_pathconf)(struct puffs_cc *, 206 void *, int, int *); 207 int (*puffs_node_advlock)(struct puffs_cc *, 208 void *, void *, int, struct flock *, int); 209 int (*puffs_node_getextattr)(struct puffs_cc *, 210 void *, struct puffs_vnreq_getextattr *); 211 int (*puffs_node_setextattr)(struct puffs_cc *, 212 void *, struct puffs_vnreq_setextattr *); 213 int (*puffs_node_listextattr)(struct puffs_cc *, 214 void *, struct puffs_vnreq_listextattr *); 215 int (*puffs_node_read)(struct puffs_cc *, void *, 216 uint8_t *, off_t, size_t *, const struct puffs_cred *, int); 217 int (*puffs_node_write)(struct puffs_cc *, void *, 218 uint8_t *, off_t, size_t *, const struct puffs_cred *, int); 219 220 int (*puffs_cache_write)(struct puffs_usermount *, 221 void *, size_t, struct puffs_cacherun *); 222 }; 223 224 typedef int (*pu_pathbuild_fn)(struct puffs_usermount *, 225 const struct puffs_pathobj *, 226 const struct puffs_pathobj *, size_t, 227 struct puffs_pathobj *); 228 typedef int (*pu_pathtransform_fn)(struct puffs_usermount *, 229 const struct puffs_pathobj *, 230 const struct puffs_cn *, 231 struct puffs_pathobj *); 232 typedef int (*pu_pathcmp_fn)(struct puffs_usermount *, struct puffs_pathobj *, 233 struct puffs_pathobj *, size_t, int); 234 typedef void (*pu_pathfree_fn)(struct puffs_usermount *, 235 struct puffs_pathobj *); 236 typedef int (*pu_namemod_fn)(struct puffs_usermount *, 237 struct puffs_pathobj *, struct puffs_cn *); 238 239 enum { 240 PUFFS_STATE_BEFOREMOUNT, 241 PUFFS_STATE_MOUNTING, PUFFS_STATE_RUNNING, 242 PUFFS_STATE_UNMOUNTING, PUFFS_STATE_UNMOUNTED 243 }; 244 245 #define PUFFS_FLAG_BUILDPATH 0x80000000 /* node paths in pnode */ 246 #define PUFFS_FLAG_OPDUMP 0x40000000 /* dump all operations */ 247 #define PUFFS_FLAG_HASHPATH 0x20000000 /* speedup: hash paths */ 248 #define PUFFS_FLAG_MASK 0xe0000000 249 250 #define PUFFS_FLAG_KERN(a) ((a) & PUFFS_KFLAG_MASK) 251 #define PUFFS_FLAG_LIB(a) ((a) & PUFFS_FLAG_MASK) 252 253 /* blocking mode argument */ 254 #define PUFFSDEV_BLOCK 0 255 #define PUFFSDEV_NONBLOCK 1 256 257 /* mainloop flags */ 258 #define PUFFSLOOP_NODAEMON 0x01 259 260 #define DENT_DOT 0 261 #define DENT_DOTDOT 1 262 #define DENT_ADJ(a) ((a)-2) /* nth request means dir's n-2th */ 263 264 265 /* 266 * protos 267 */ 268 269 #define PUFFSOP_PROTOS(fsname) \ 270 int fsname##_fs_mount(struct puffs_usermount *, void **, \ 271 struct statvfs *); \ 272 int fsname##_fs_unmount(struct puffs_cc *, int, pid_t); \ 273 int fsname##_fs_statvfs(struct puffs_cc *, \ 274 struct statvfs *, pid_t); \ 275 int fsname##_fs_sync(struct puffs_cc *, int, \ 276 const struct puffs_cred *cred, pid_t); \ 277 int fsname##_fs_fhtonode(struct puffs_cc *, void *, size_t, \ 278 void **, enum vtype *, voff_t *, dev_t *); \ 279 int fsname##_fs_nodetofh(struct puffs_cc *, void *cookie, \ 280 void *, size_t *); \ 281 void fsname##_fs_suspend(struct puffs_cc *, int); \ 282 \ 283 int fsname##_node_lookup(struct puffs_cc *, \ 284 void *, void **, enum vtype *, voff_t *, dev_t *, \ 285 const struct puffs_cn *); \ 286 int fsname##_node_create(struct puffs_cc *, \ 287 void *, void **, const struct puffs_cn *, \ 288 const struct vattr *); \ 289 int fsname##_node_mknod(struct puffs_cc *, \ 290 void *, void **, const struct puffs_cn *, \ 291 const struct vattr *); \ 292 int fsname##_node_open(struct puffs_cc *, \ 293 void *, int, const struct puffs_cred *, pid_t); \ 294 int fsname##_node_close(struct puffs_cc *, \ 295 void *, int, const struct puffs_cred *, pid_t); \ 296 int fsname##_node_access(struct puffs_cc *, \ 297 void *, int, const struct puffs_cred *, pid_t); \ 298 int fsname##_node_getattr(struct puffs_cc *, \ 299 void *, struct vattr *, const struct puffs_cred *, pid_t); \ 300 int fsname##_node_setattr(struct puffs_cc *, \ 301 void *, const struct vattr *, const struct puffs_cred *, \ 302 pid_t); \ 303 int fsname##_node_poll(struct puffs_cc *, \ 304 void *, struct puffs_vnreq_poll *); \ 305 int fsname##_node_mmap(struct puffs_cc *, \ 306 void *, int, const struct puffs_cred *, pid_t); \ 307 int fsname##_node_fsync(struct puffs_cc *, \ 308 void *, const struct puffs_cred *, int, off_t, off_t, \ 309 pid_t); \ 310 int fsname##_node_seek(struct puffs_cc *, \ 311 void *, off_t, off_t, const struct puffs_cred *); \ 312 int fsname##_node_remove(struct puffs_cc *, \ 313 void *, void *, const struct puffs_cn *); \ 314 int fsname##_node_link(struct puffs_cc *, \ 315 void *, void *, const struct puffs_cn *); \ 316 int fsname##_node_rename(struct puffs_cc *, \ 317 void *, void *, const struct puffs_cn *, void *, void *, \ 318 const struct puffs_cn *); \ 319 int fsname##_node_mkdir(struct puffs_cc *, \ 320 void *, void **, const struct puffs_cn *, \ 321 const struct vattr *); \ 322 int fsname##_node_rmdir(struct puffs_cc *, \ 323 void *, void *, const struct puffs_cn *); \ 324 int fsname##_node_symlink(struct puffs_cc *, \ 325 void *, void **, const struct puffs_cn *, \ 326 const struct vattr *, const char *); \ 327 int fsname##_node_readdir(struct puffs_cc *, \ 328 void *, struct dirent *, off_t *, size_t *, \ 329 const struct puffs_cred *, int *, off_t *, size_t *); \ 330 int fsname##_node_readlink(struct puffs_cc *, \ 331 void *, const struct puffs_cred *, char *, size_t *); \ 332 int fsname##_node_reclaim(struct puffs_cc *, \ 333 void *, pid_t); \ 334 int fsname##_node_inactive(struct puffs_cc *, \ 335 void *, pid_t, int *); \ 336 int fsname##_node_print(struct puffs_cc *, \ 337 void *); \ 338 int fsname##_node_pathconf(struct puffs_cc *, \ 339 void *, int, int *); \ 340 int fsname##_node_advlock(struct puffs_cc *, \ 341 void *, void *, int, struct flock *, int); \ 342 int fsname##_node_getextattr(struct puffs_cc *, \ 343 void *, struct puffs_vnreq_getextattr *); \ 344 int fsname##_node_setextattr(struct puffs_cc *, \ 345 void *, struct puffs_vnreq_setextattr *); \ 346 int fsname##_node_listextattr(struct puffs_cc *, \ 347 void *, struct puffs_vnreq_listextattr *); \ 348 int fsname##_node_read(struct puffs_cc *, void *, \ 349 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\ 350 int fsname##_node_write(struct puffs_cc *, void *, \ 351 uint8_t *, off_t, size_t *, const struct puffs_cred *, int);\ 352 \ 353 int fsname##_cache_write(struct puffs_usermount *, void *, \ 354 size_t, struct puffs_cacheinfo *); 355 356 #define PUFFSOP_INIT(ops) \ 357 ops = malloc(sizeof(struct puffs_ops)); \ 358 memset(ops, 0, sizeof(struct puffs_ops)) 359 #define PUFFSOP_SET(ops, fsname, fsornode, opname) \ 360 (ops)->puffs_##fsornode##_##opname = fsname##_##fsornode##_##opname 361 #define PUFFSOP_SETFSNOP(ops, opname) \ 362 (ops)->puffs_fs_##opname = puffs_fsnop_##opname 363 364 #define PUFFS_DEVEL_LIBVERSION 13 365 #define puffs_mount(a,b,c,d,e,f) \ 366 _puffs_mount(PUFFS_DEVEL_LIBVERSION,a,b,c,d,e,f) 367 #define puffs_init(a,b,c,d) \ 368 _puffs_init(PUFFS_DEVEL_LIBVERSION,a,b,c,d) 369 370 371 #define PNPATH(pnode) ((pnode)->pn_po.po_path) 372 #define PNPLEN(pnode) ((pnode)->pn_po.po_len) 373 #define PCNPATH(pcnode) ((pcnode)->pcn_po_full.po_path) 374 #define PCNPLEN(pcnode) ((pcnode)->pcn_po_full.po_len) 375 #define PCNISDOTDOT(pcnode) \ 376 ((pcnode)->pcn_namelen == 2 && strcmp((pcnode)->pcn_name, "..") == 0) 377 378 #define PUFFS_STORE_DCOOKIE(cp, ncp, off) \ 379 if (cp) { \ 380 *((cp)++) = off; \ 381 (*(ncp))++; \ 382 } 383 384 /* framebuf stuff */ 385 struct puffs_framebuf; 386 typedef int (*puffs_framebuf_readframe_fn)(struct puffs_usermount *, 387 struct puffs_framebuf *, 388 int, int *); 389 typedef int (*puffs_framebuf_writeframe_fn)(struct puffs_usermount *, 390 struct puffs_framebuf *, 391 int, int *); 392 typedef int (*puffs_framebuf_respcmp_fn)(struct puffs_usermount *, 393 struct puffs_framebuf *, 394 struct puffs_framebuf *); 395 typedef void (*puffs_framebuf_loop_fn)(struct puffs_usermount *); 396 397 typedef void (*puffs_framebuf_cb)(struct puffs_usermount *, 398 struct puffs_framebuf *, 399 void *); 400 401 402 __BEGIN_DECLS 403 404 struct puffs_usermount *_puffs_mount(int, struct puffs_ops *, const char *, int, 405 const char *, void *, uint32_t); 406 struct puffs_usermount *_puffs_init(int, struct puffs_ops *pops, const char *, 407 void *, uint32_t); 408 int puffs_domount(struct puffs_usermount *, const char *, int); 409 int puffs_start(struct puffs_usermount *, void *, struct statvfs *); 410 int puffs_exit(struct puffs_usermount *, int); 411 int puffs_mainloop(struct puffs_usermount *, int); 412 413 414 int puffs_getselectable(struct puffs_usermount *); 415 int puffs_setblockingmode(struct puffs_usermount *, int); 416 int puffs_getstate(struct puffs_usermount *); 417 void puffs_setstacksize(struct puffs_usermount *, size_t); 418 419 void puffs_setroot(struct puffs_usermount *, 420 struct puffs_node *); 421 struct puffs_node *puffs_getroot(struct puffs_usermount *); 422 void *puffs_getspecific(struct puffs_usermount *); 423 void puffs_setmaxreqlen(struct puffs_usermount *, size_t); 424 size_t puffs_getmaxreqlen(struct puffs_usermount *); 425 void puffs_setfhsize(struct puffs_usermount *, size_t, int); 426 427 void puffs_setncookiehash(struct puffs_usermount *, int); 428 429 struct puffs_pathobj *puffs_getrootpathobj(struct puffs_usermount *); 430 431 void puffs_setback(struct puffs_cc *, int); 432 433 struct puffs_node *puffs_pn_new(struct puffs_usermount *, void *); 434 void puffs_pn_put(struct puffs_node *); 435 436 void *puffs_pn_getmntspecific(struct puffs_node *); 437 438 typedef void * (*puffs_nodewalk_fn)(struct puffs_usermount *, 439 struct puffs_node *, void *); 440 void *puffs_pn_nodewalk(struct puffs_usermount *, 441 puffs_nodewalk_fn, void *); 442 443 void puffs_setvattr(struct vattr *, const struct vattr *); 444 void puffs_vattr_null(struct vattr *); 445 446 /* 447 * generic/dummy routines applicable for some file systems 448 */ 449 int puffs_fsnop_unmount(struct puffs_cc *, int, pid_t); 450 int puffs_fsnop_statvfs(struct puffs_cc *, struct statvfs *, pid_t); 451 void puffs_zerostatvfs(struct statvfs *); 452 int puffs_fsnop_sync(struct puffs_cc *, int waitfor, 453 const struct puffs_cred *, pid_t); 454 int puffs_genfs_node_reclaim(struct puffs_cc *, void *, pid_t); 455 456 /* 457 * Subroutine stuff 458 */ 459 460 int puffs_gendotdent(struct dirent **, ino_t, int, size_t *); 461 int puffs_nextdent(struct dirent **, const char *, ino_t, 462 uint8_t, size_t *); 463 int puffs_vtype2dt(enum vtype); 464 enum vtype puffs_mode2vt(mode_t); 465 void puffs_stat2vattr(struct vattr *va, const struct stat *); 466 mode_t puffs_addvtype2mode(mode_t, enum vtype); 467 468 469 /* 470 * credentials & permissions 471 */ 472 473 /* Credential fetch */ 474 int puffs_cred_getuid(const struct puffs_cred *pcr, uid_t *); 475 int puffs_cred_getgid(const struct puffs_cred *pcr, gid_t *); 476 int puffs_cred_getgroups(const struct puffs_cred *pcr, gid_t *, short *); 477 478 /* Credential check */ 479 int puffs_cred_isuid(const struct puffs_cred *, uid_t); 480 int puffs_cred_hasgroup(const struct puffs_cred *, gid_t); 481 int puffs_cred_isregular(const struct puffs_cred *); 482 int puffs_cred_iskernel(const struct puffs_cred *); 483 int puffs_cred_isfs(const struct puffs_cred *); 484 int puffs_cred_isjuggernaut(const struct puffs_cred *); 485 486 /* misc */ 487 int puffs_access(enum vtype, mode_t, uid_t, gid_t, mode_t, 488 const struct puffs_cred *); 489 int puffs_access_chown(uid_t, gid_t, uid_t, gid_t, 490 const struct puffs_cred *); 491 int puffs_access_chmod(uid_t, gid_t, enum vtype, mode_t, 492 const struct puffs_cred *); 493 int puffs_access_times(uid_t, gid_t, mode_t, int, 494 const struct puffs_cred *); 495 496 497 /* 498 * Requests 499 */ 500 501 struct puffs_getreq *puffs_req_makeget(struct puffs_usermount *, 502 size_t, int); 503 int puffs_req_loadget(struct puffs_getreq *); 504 struct puffs_req *puffs_req_get(struct puffs_getreq *); 505 int puffs_req_remainingget(struct puffs_getreq *); 506 void puffs_req_setmaxget(struct puffs_getreq *, int); 507 void puffs_req_destroyget(struct puffs_getreq *); 508 509 struct puffs_putreq *puffs_req_makeput(struct puffs_usermount *); 510 void puffs_req_put(struct puffs_putreq *,struct puffs_req *); 511 void puffs_req_putcc(struct puffs_putreq *,struct puffs_cc*); 512 int puffs_req_putput(struct puffs_putreq *); 513 void puffs_req_resetput(struct puffs_putreq *); 514 void puffs_req_destroyput(struct puffs_putreq *); 515 516 int puffs_req_handle(struct puffs_usermount *, 517 struct puffs_getreq *, 518 struct puffs_putreq *, int); 519 520 /* 521 * Call Context interfaces relevant for user. 522 */ 523 524 void puffs_cc_yield(struct puffs_cc *); 525 void puffs_cc_continue(struct puffs_cc *); 526 struct puffs_usermount *puffs_cc_getusermount(struct puffs_cc *); 527 void *puffs_cc_getspecific(struct puffs_cc *); 528 struct puffs_cc *puffs_cc_create(struct puffs_usermount *); 529 void puffs_cc_destroy(struct puffs_cc *); 530 531 /* 532 * Execute or continue a request 533 */ 534 535 int puffs_dopreq(struct puffs_usermount *, struct puffs_req *, 536 struct puffs_putreq *); 537 int puffs_docc(struct puffs_cc *, struct puffs_putreq *); 538 539 /* 540 * Flushing / invalidation routines 541 */ 542 543 int puffs_inval_namecache_dir(struct puffs_usermount *, void *); 544 int puffs_inval_namecache_all(struct puffs_usermount *); 545 546 int puffs_inval_pagecache_node(struct puffs_usermount *, void *); 547 int puffs_inval_pagecache_node_range(struct puffs_usermount *, void *, 548 off_t, off_t); 549 int puffs_flush_pagecache_node(struct puffs_usermount *, void *); 550 int puffs_flush_pagecache_node_range(struct puffs_usermount *, void *, 551 off_t, off_t); 552 553 /* 554 * Path constructicons 555 */ 556 557 int puffs_stdpath_buildpath(struct puffs_usermount *, 558 const struct puffs_pathobj *, 559 const struct puffs_pathobj *, size_t, 560 struct puffs_pathobj *); 561 int puffs_stdpath_cmppath(struct puffs_usermount *, struct puffs_pathobj *, 562 struct puffs_pathobj *, size_t, int); 563 void puffs_stdpath_freepath(struct puffs_usermount *,struct puffs_pathobj *); 564 565 void *puffs_path_walkcmp(struct puffs_usermount *, 566 struct puffs_node *, void *); 567 void *puffs_path_prefixadj(struct puffs_usermount *, 568 struct puffs_node *, void *); 569 int puffs_path_pcnbuild(struct puffs_usermount *, 570 struct puffs_cn *, void *); 571 void puffs_path_buildhash(struct puffs_usermount *, struct puffs_pathobj *); 572 573 void puffs_set_pathbuild(struct puffs_usermount *, pu_pathbuild_fn); 574 void puffs_set_pathtransform(struct puffs_usermount *, pu_pathtransform_fn); 575 void puffs_set_pathcmp(struct puffs_usermount *, pu_pathcmp_fn); 576 void puffs_set_pathfree(struct puffs_usermount *, pu_pathfree_fn); 577 void puffs_set_namemod(struct puffs_usermount *, pu_namemod_fn); 578 579 /* 580 * Suspension 581 */ 582 583 int puffs_fs_suspend(struct puffs_usermount *); 584 585 /* 586 * Frame buffering 587 */ 588 589 struct puffs_framebuf *puffs_framebuf_make(void); 590 void puffs_framebuf_destroy(struct puffs_framebuf *); 591 void puffs_framebuf_recycle(struct puffs_framebuf *); 592 int puffs_framebuf_reserve_space(struct puffs_framebuf *, 593 size_t); 594 595 int puffs_framebuf_putdata(struct puffs_framebuf *, const void *, size_t); 596 int puffs_framebuf_putdata_atoff(struct puffs_framebuf *, size_t, 597 const void *, size_t); 598 int puffs_framebuf_getdata(struct puffs_framebuf *, void *, size_t); 599 int puffs_framebuf_getdata_atoff(struct puffs_framebuf *, size_t, 600 void *, size_t); 601 602 size_t puffs_framebuf_telloff(struct puffs_framebuf *); 603 size_t puffs_framebuf_tellsize(struct puffs_framebuf *); 604 size_t puffs_framebuf_remaining(struct puffs_framebuf *); 605 int puffs_framebuf_seekset(struct puffs_framebuf *, size_t); 606 int puffs_framebuf_getwindow(struct puffs_framebuf *, size_t, 607 void **, size_t *); 608 609 int puffs_framebuf_enqueue_cc(struct puffs_cc *, struct puffs_framebuf *); 610 void puffs_framebuf_enqueue_cb(struct puffs_usermount *, 611 struct puffs_framebuf *, 612 puffs_framebuf_cb, void *); 613 void puffs_framebuf_enqueue_justsend(struct puffs_usermount *, 614 struct puffs_framebuf *, int); 615 616 int puffs_framebuf_eventloop(struct puffs_usermount *, int, 617 puffs_framebuf_readframe_fn, 618 puffs_framebuf_writeframe_fn, 619 puffs_framebuf_respcmp_fn, 620 puffs_framebuf_loop_fn); 621 622 __END_DECLS 623 624 #endif /* _PUFFS_H_ */ 625
Indexes created Sat Sep 27 14:09:57 GMT 2025