1 /* 2 * Copyright (c) 2004 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $DragonFly: src/sys/sys/vfsops.h,v 1.25 2006/07/28 02:17:41 dillon Exp $ 35 */ 36 37 /* 38 * The vop_ops structure vectors all access to a filesystem. It contains a 39 * fixed set of vectors. 40 * 41 * In DragonFly the ultimate goal is to thread the VFS, which means that 42 * the dispatch functions will eventually be called from the context of 43 * a management thread rather then directly called by a process. This 44 * requires us to divorce direct process dependancies (in particular ioctl 45 * and UIO's). In addition, it is our intention to implement kernel 46 * level cache management and coherency in the vop_*() interfacing 47 * layer. 48 * 49 * The number of management threads will depend on the VFS. The idea is 50 * to give a high performance VFS such as UFS at least one thread per cpu, 51 * and a low performance VFS such as CD9660 perhaps just one thread period. 52 * Blocking issues within the management thread are up to the VFS itself, 53 * but DragonFly will introduce a layer above the VFS to handle cacheable 54 * requests without having to enter the VFS (e.g. by making attribute 55 * and VM object information a permanent fixture of the vnode structure 56 * and accessing them directly). 57 * 58 * THE VOPOPS VECTORS SHOULD NEVER BE CALLED DIRECTLY! Instead always use 59 * the kernel helper procedures vop_*() to call a vopop. The kernel 60 * helper procedure will be responsible for handling the DragonFly messaging 61 * conversion when it occurs. 62 */ 63 64 #ifndef _SYS_VFSOPS_H_ 65 #define _SYS_VFSOPS_H_ 66 67 #ifndef _SYS_ACL_H_ 68 #include <sys/acl.h> 69 #endif 70 71 struct syslink_desc; 72 struct vnode; 73 struct thread; 74 struct namecache; 75 struct componentname; 76 struct vattr; 77 struct ucred; 78 struct uio; 79 struct file; 80 struct knote; 81 struct vm_object; 82 struct vm_page; 83 struct vfscache; 84 85 struct vop_generic_args { 86 struct syslink_desc *a_desc; /* command descriptor for the call */ 87 struct vop_ops *a_ops; /* operations vector for the call */ 88 int a_reserved[4]; 89 }; 90 91 struct vop_islocked_args { 92 struct vop_generic_args a_head; 93 struct vnode *a_vp; 94 struct thread *a_td; 95 }; 96 97 struct vop_old_lookup_args { 98 struct vop_generic_args a_head; 99 struct vnode *a_dvp; 100 struct vnode **a_vpp; 101 struct componentname *a_cnp; 102 }; 103 104 struct vop_old_create_args { 105 struct vop_generic_args a_head; 106 struct vnode *a_dvp; 107 struct vnode **a_vpp; 108 struct componentname *a_cnp; 109 struct vattr *a_vap; 110 }; 111 112 struct vop_old_whiteout_args { 113 struct vop_generic_args a_head; 114 struct vnode *a_dvp; 115 struct componentname *a_cnp; 116 int a_flags; 117 }; 118 119 struct vop_old_mknod_args { 120 struct vop_generic_args a_head; 121 struct vnode *a_dvp; 122 struct vnode **a_vpp; 123 struct componentname *a_cnp; 124 struct vattr *a_vap; 125 }; 126 127 struct vop_open_args { 128 struct vop_generic_args a_head; 129 struct vnode *a_vp; 130 int a_mode; 131 struct ucred *a_cred; 132 struct file *a_fp; /* optional fp for fileops override */ 133 }; 134 135 struct vop_close_args { 136 struct vop_generic_args a_head; 137 struct vnode *a_vp; 138 int a_fflag; 139 }; 140 141 struct vop_access_args { 142 struct vop_generic_args a_head; 143 struct vnode *a_vp; 144 int a_mode; 145 struct ucred *a_cred; 146 }; 147 148 struct vop_getattr_args { 149 struct vop_generic_args a_head; 150 struct vnode *a_vp; 151 struct vattr *a_vap; 152 }; 153 154 struct vop_setattr_args { 155 struct vop_generic_args a_head; 156 struct vnode *a_vp; 157 struct vattr *a_vap; 158 struct ucred *a_cred; 159 }; 160 161 struct vop_read_args { 162 struct vop_generic_args a_head; 163 struct vnode *a_vp; 164 struct uio *a_uio; 165 int a_ioflag; 166 struct ucred *a_cred; 167 }; 168 169 struct vop_write_args { 170 struct vop_generic_args a_head; 171 struct vnode *a_vp; 172 struct uio *a_uio; 173 int a_ioflag; 174 struct ucred *a_cred; 175 }; 176 177 struct vop_ioctl_args { 178 struct vop_generic_args a_head; 179 struct vnode *a_vp; 180 u_long a_command; 181 caddr_t a_data; 182 int a_fflag; 183 struct ucred *a_cred; 184 }; 185 186 struct vop_poll_args { 187 struct vop_generic_args a_head; 188 struct vnode *a_vp; 189 int a_events; 190 struct ucred *a_cred; 191 }; 192 193 struct vop_kqfilter_args { 194 struct vop_generic_args a_head; 195 struct vnode *a_vp; 196 struct knote *a_kn; 197 }; 198 199 struct vop_revoke_args { 200 struct vop_generic_args a_head; 201 struct vnode *a_vp; 202 int a_flags; 203 }; 204 205 struct vop_mmap_args { 206 struct vop_generic_args a_head; 207 struct vnode *a_vp; 208 int a_fflags; 209 struct ucred *a_cred; 210 }; 211 212 struct vop_fsync_args { 213 struct vop_generic_args a_head; 214 struct vnode *a_vp; 215 int a_waitfor; 216 }; 217 218 struct vop_old_remove_args { 219 struct vop_generic_args a_head; 220 struct vnode *a_dvp; 221 struct vnode *a_vp; 222 struct componentname *a_cnp; 223 }; 224 225 struct vop_old_link_args { 226 struct vop_generic_args a_head; 227 struct vnode *a_tdvp; 228 struct vnode *a_vp; 229 struct componentname *a_cnp; 230 }; 231 232 struct vop_old_rename_args { 233 struct vop_generic_args a_head; 234 struct vnode *a_fdvp; 235 struct vnode *a_fvp; 236 struct componentname *a_fcnp; 237 struct vnode *a_tdvp; 238 struct vnode *a_tvp; 239 struct componentname *a_tcnp; 240 }; 241 242 struct vop_old_mkdir_args { 243 struct vop_generic_args a_head; 244 struct vnode *a_dvp; 245 struct vnode **a_vpp; 246 struct componentname *a_cnp; 247 struct vattr *a_vap; 248 }; 249 250 struct vop_old_rmdir_args { 251 struct vop_generic_args a_head; 252 struct vnode *a_dvp; 253 struct vnode *a_vp; 254 struct componentname *a_cnp; 255 }; 256 257 struct vop_old_symlink_args { 258 struct vop_generic_args a_head; 259 struct vnode *a_dvp; 260 struct vnode **a_vpp; 261 struct componentname *a_cnp; 262 struct vattr *a_vap; 263 char *a_target; 264 }; 265 266 struct vop_readdir_args { 267 struct vop_generic_args a_head; 268 struct vnode *a_vp; 269 struct uio *a_uio; 270 struct ucred *a_cred; 271 int *a_eofflag; 272 int *a_ncookies; 273 u_long **a_cookies; 274 }; 275 276 struct vop_readlink_args { 277 struct vop_generic_args a_head; 278 struct vnode *a_vp; 279 struct uio *a_uio; 280 struct ucred *a_cred; 281 }; 282 283 struct vop_inactive_args { 284 struct vop_generic_args a_head; 285 struct vnode *a_vp; 286 }; 287 288 struct vop_reclaim_args { 289 struct vop_generic_args a_head; 290 struct vnode *a_vp; 291 }; 292 293 struct vop_lock_args { 294 struct vop_generic_args a_head; 295 struct vnode *a_vp; 296 int a_flags; 297 }; 298 299 struct vop_unlock_args { 300 struct vop_generic_args a_head; 301 struct vnode *a_vp; 302 int a_flags; 303 }; 304 305 struct vop_bmap_args { 306 struct vop_generic_args a_head; 307 struct vnode *a_vp; 308 off_t a_loffset; 309 struct vnode **a_vpp; 310 off_t *a_doffsetp; 311 int *a_runp; 312 int *a_runb; 313 }; 314 315 struct vop_strategy_args { 316 struct vop_generic_args a_head; 317 struct vnode *a_vp; 318 struct bio *a_bio; 319 }; 320 321 struct vop_print_args { 322 struct vop_generic_args a_head; 323 struct vnode *a_vp; 324 }; 325 326 struct vop_pathconf_args { 327 struct vop_generic_args a_head; 328 struct vnode *a_vp; 329 int a_name; 330 register_t *a_retval; 331 }; 332 333 struct vop_advlock_args { 334 struct vop_generic_args a_head; 335 struct vnode *a_vp; 336 caddr_t a_id; 337 int a_op; 338 struct flock *a_fl; 339 int a_flags; 340 }; 341 342 struct vop_balloc_args { 343 struct vop_generic_args a_head; 344 struct vnode *a_vp; 345 off_t a_startoffset; 346 int a_size; 347 struct ucred *a_cred; 348 int a_flags; 349 struct buf **a_bpp; 350 }; 351 352 struct vop_reallocblks_args { 353 struct vop_generic_args a_head; 354 struct vnode *a_vp; 355 struct cluster_save *a_buflist; 356 }; 357 358 struct vop_getpages_args { 359 struct vop_generic_args a_head; 360 struct vnode *a_vp; 361 struct vm_page **a_m; 362 int a_count; 363 int a_reqpage; 364 vm_ooffset_t a_offset; 365 }; 366 367 struct vop_putpages_args { 368 struct vop_generic_args a_head; 369 struct vnode *a_vp; 370 struct vm_page **a_m; 371 int a_count; 372 int a_sync; 373 int *a_rtvals; 374 vm_ooffset_t a_offset; 375 }; 376 377 struct vop_freeblks_args { 378 struct vop_generic_args a_head; 379 struct vnode *a_vp; 380 off_t a_offset; 381 int a_length; 382 }; 383 384 struct vop_getacl_args { 385 struct vop_generic_args a_head; 386 struct vnode *a_vp; 387 acl_type_t a_type; 388 struct acl *a_aclp; 389 struct ucred *a_cred; 390 }; 391 392 struct vop_setacl_args { 393 struct vop_generic_args a_head; 394 struct vnode *a_vp; 395 acl_type_t a_type; 396 struct acl *a_aclp; 397 struct ucred *a_cred; 398 }; 399 400 struct vop_aclcheck_args { 401 struct vop_generic_args a_head; 402 struct vnode *a_vp; 403 acl_type_t a_type; 404 struct acl *a_aclp; 405 struct ucred *a_cred; 406 }; 407 408 struct vop_getextattr_args { 409 struct vop_generic_args a_head; 410 struct vnode *a_vp; 411 char *a_name; 412 struct uio *a_uio; 413 struct ucred *a_cred; 414 }; 415 416 struct vop_setextattr_args { 417 struct vop_generic_args a_head; 418 struct vnode *a_vp; 419 char *a_name; 420 struct uio *a_uio; 421 struct ucred *a_cred; 422 }; 423 424 struct vop_mountctl_args { 425 struct vop_generic_args a_head; 426 int a_op; 427 struct file *a_fp; 428 const void *a_ctl; 429 int a_ctllen; 430 void *a_buf; 431 int a_buflen; 432 int *a_res; 433 }; 434 435 /* 436 * NEW API 437 */ 438 struct vop_nresolve_args { 439 struct vop_generic_args a_head; 440 struct namecache *a_ncp; 441 struct ucred *a_cred; 442 }; 443 444 struct vop_nlookupdotdot_args { 445 struct vop_generic_args a_head; 446 struct vnode *a_dvp; 447 struct vnode **a_vpp; 448 struct ucred *a_cred; 449 }; 450 451 struct vop_ncreate_args { 452 struct vop_generic_args a_head; 453 struct namecache *a_ncp; /* locked namespace */ 454 struct vnode **a_vpp; /* returned refd & locked */ 455 struct ucred *a_cred; 456 struct vattr *a_vap; 457 }; 458 459 struct vop_nmkdir_args { 460 struct vop_generic_args a_head; 461 struct namecache *a_ncp; /* locked namespace */ 462 struct vnode **a_vpp; /* returned refd & locked */ 463 struct ucred *a_cred; 464 struct vattr *a_vap; 465 }; 466 467 struct vop_nmknod_args { 468 struct vop_generic_args a_head; 469 struct namecache *a_ncp; 470 struct vnode **a_vpp; 471 struct ucred *a_cred; 472 struct vattr *a_vap; 473 }; 474 475 struct vop_nlink_args { 476 struct vop_generic_args a_head; 477 struct namecache *a_ncp; 478 struct vnode *a_vp; 479 struct ucred *a_cred; 480 }; 481 482 struct vop_nsymlink_args { 483 struct vop_generic_args a_head; 484 struct namecache *a_ncp; 485 struct vnode **a_vpp; 486 struct ucred *a_cred; 487 struct vattr *a_vap; 488 char *a_target; 489 }; 490 491 struct vop_nwhiteout_args { 492 struct vop_generic_args a_head; 493 struct namecache *a_ncp; 494 struct ucred *a_cred; 495 int a_flags; 496 }; 497 498 struct vop_nremove_args { 499 struct vop_generic_args a_head; 500 struct namecache *a_ncp; /* locked namespace */ 501 struct ucred *a_cred; 502 }; 503 504 struct vop_nrmdir_args { 505 struct vop_generic_args a_head; 506 struct namecache *a_ncp; /* locked namespace */ 507 struct ucred *a_cred; 508 }; 509 510 struct vop_nrename_args { 511 struct vop_generic_args a_head; 512 struct namecache *a_fncp; /* locked namespace / from */ 513 struct namecache *a_tncp; /* locked namespace / to */ 514 struct ucred *a_cred; 515 }; 516 517 /* 518 * This structure is the post-compiled VOP operations vector. vop_ops are 519 * typically per-mount entities. The first section is used by our vop_*() 520 * function wrappers to implement hooks for per-mount management functions 521 * such as journaling and cache coherency protocols. The second section is 522 * the function dispatch for the VFSs. The functions are supposed to run 523 * in the context of the VFS's thread (if it has one) and should not be 524 * directly called from random kernel code. Note that VOCALL()s are direct 525 * calls used for chaining vop_ops structures from a VFS context. 526 */ 527 struct vop_ops { 528 struct { 529 struct mount *vv_mount; 530 } head; 531 532 #define vop_ops_first_field vop_default 533 int (*vop_default)(struct vop_generic_args *); 534 int (*vop_islocked)(struct vop_islocked_args *); 535 int (*vop_old_lookup)(struct vop_old_lookup_args *); 536 int (*vop_unused03)(void *); 537 int (*vop_old_create)(struct vop_old_create_args *); 538 int (*vop_old_whiteout)(struct vop_old_whiteout_args *); 539 int (*vop_old_mknod)(struct vop_old_mknod_args *); 540 int (*vop_open)(struct vop_open_args *); 541 int (*vop_close)(struct vop_close_args *); 542 int (*vop_access)(struct vop_access_args *); 543 int (*vop_getattr)(struct vop_getattr_args *); 544 int (*vop_setattr)(struct vop_setattr_args *); 545 int (*vop_read)(struct vop_read_args *); 546 int (*vop_write)(struct vop_write_args *); 547 int (*vop_unused04)(void *); 548 int (*vop_ioctl)(struct vop_ioctl_args *); 549 int (*vop_poll)(struct vop_poll_args *); 550 int (*vop_kqfilter)(struct vop_kqfilter_args *); 551 int (*vop_revoke)(struct vop_revoke_args *); 552 int (*vop_mmap)(struct vop_mmap_args *); 553 int (*vop_fsync)(struct vop_fsync_args *); 554 int (*vop_old_remove)(struct vop_old_remove_args *); 555 int (*vop_old_link)(struct vop_old_link_args *); 556 int (*vop_old_rename)(struct vop_old_rename_args *); 557 int (*vop_old_mkdir)(struct vop_old_mkdir_args *); 558 int (*vop_old_rmdir)(struct vop_old_rmdir_args *); 559 int (*vop_old_symlink)(struct vop_old_symlink_args *); 560 int (*vop_readdir)(struct vop_readdir_args *); 561 int (*vop_readlink)(struct vop_readlink_args *); 562 int (*vop_inactive)(struct vop_inactive_args *); 563 int (*vop_reclaim)(struct vop_reclaim_args *); 564 int (*vop_lock)(struct vop_lock_args *); 565 int (*vop_unlock)(struct vop_unlock_args *); 566 int (*vop_bmap)(struct vop_bmap_args *); 567 int (*vop_strategy)(struct vop_strategy_args *); 568 int (*vop_print)(struct vop_print_args *); 569 int (*vop_pathconf)(struct vop_pathconf_args *); 570 int (*vop_advlock)(struct vop_advlock_args *); 571 int (*vop_balloc)(struct vop_balloc_args *); 572 int (*vop_reallocblks)(struct vop_reallocblks_args *); 573 int (*vop_getpages)(struct vop_getpages_args *); 574 int (*vop_putpages)(struct vop_putpages_args *); 575 int (*vop_freeblks)(struct vop_freeblks_args *); 576 int (*vop_unused05)(void *); 577 int (*vop_getacl)(struct vop_getacl_args *); 578 int (*vop_setacl)(struct vop_setacl_args *); 579 int (*vop_aclcheck)(struct vop_aclcheck_args *); 580 int (*vop_getextattr)(struct vop_getextattr_args *); 581 int (*vop_setextattr)(struct vop_setextattr_args *); 582 int (*vop_unused06)(void *); 583 int (*vop_unused07)(void *); 584 int (*vop_unused08)(void *); 585 int (*vop_mountctl)(struct vop_mountctl_args *); 586 587 int (*vop_nresolve)(struct vop_nresolve_args *); 588 int (*vop_nlookupdotdot)(struct vop_nlookupdotdot_args *); 589 int (*vop_ncreate)(struct vop_ncreate_args *); 590 int (*vop_nmkdir)(struct vop_nmkdir_args *); 591 int (*vop_nmknod)(struct vop_nmknod_args *); 592 int (*vop_nlink)(struct vop_nlink_args *); 593 int (*vop_nsymlink)(struct vop_nsymlink_args *); 594 int (*vop_nwhiteout)(struct vop_nwhiteout_args *); 595 int (*vop_nremove)(struct vop_nremove_args *); 596 int (*vop_nrmdir)(struct vop_nrmdir_args *); 597 int (*vop_nrename)(struct vop_nrename_args *); 598 #define vop_ops_last_field vop_nrename 599 }; 600 601 /* 602 * vop_mountctl() operations 603 */ 604 #define VFSSET_DETACH 0 605 #define VFSSET_ATTACH 1 606 607 /* 608 * Kernel VOP arguments union, suitable for malloc / embedding in other 609 * structures. The vop_args_union can hold any VOP call argument structure. 610 * Note that vu_head is broken out. 611 */ 612 union vop_args_union { 613 struct vop_generic_args vu_head; 614 struct vop_generic_args vu_default; 615 struct vop_islocked_args vu_islocked; 616 struct vop_old_lookup_args vu_lookup; 617 struct vop_old_create_args vu_create; 618 struct vop_old_whiteout_args vu_whiteout; 619 struct vop_old_mknod_args vu_mknod; 620 struct vop_open_args vu_open; 621 struct vop_close_args vu_close; 622 struct vop_access_args vu_access; 623 struct vop_getattr_args vu_getattr; 624 struct vop_setattr_args vu_setattr; 625 struct vop_read_args vu_read; 626 struct vop_write_args vu_write; 627 struct vop_ioctl_args vu_ioctl; 628 struct vop_poll_args vu_poll; 629 struct vop_kqfilter_args vu_kqfilter; 630 struct vop_revoke_args vu_revoke; 631 struct vop_mmap_args vu_mmap; 632 struct vop_fsync_args vu_fsync; 633 struct vop_old_remove_args vu_remove; 634 struct vop_old_link_args vu_link; 635 struct vop_old_rename_args vu_rename; 636 struct vop_old_mkdir_args vu_mkdir; 637 struct vop_old_rmdir_args vu_rmdir; 638 struct vop_old_symlink_args vu_symlink; 639 struct vop_readdir_args vu_readdir; 640 struct vop_readlink_args vu_readlink; 641 struct vop_inactive_args vu_inactive; 642 struct vop_reclaim_args vu_reclaim; 643 struct vop_lock_args vu_lock; 644 struct vop_unlock_args vu_unlock; 645 struct vop_bmap_args vu_bmap; 646 struct vop_strategy_args vu_strategy; 647 struct vop_print_args vu_print; 648 struct vop_pathconf_args vu_pathconf; 649 struct vop_advlock_args vu_advlock; 650 struct vop_balloc_args vu_balloc; 651 struct vop_reallocblks_args vu_reallocblks; 652 struct vop_getpages_args vu_getpages; 653 struct vop_putpages_args vu_putpages; 654 struct vop_freeblks_args vu_freeblks; 655 struct vop_getacl_args vu_getacl; 656 struct vop_setacl_args vu_setacl; 657 struct vop_aclcheck_args vu_aclcheck; 658 struct vop_getextattr_args vu_getextattr; 659 struct vop_setextattr_args vu_setextattr; 660 struct vop_mountctl_args vu_mountctl; 661 662 struct vop_nresolve_args vu_nresolve; 663 struct vop_nlookupdotdot_args vu_nlookupdotdot; 664 struct vop_ncreate_args vu_ncreate; 665 struct vop_nmkdir_args vu_nmkdir; 666 struct vop_nmknod_args vu_nmknod; 667 struct vop_nlink_args vu_nlink; 668 struct vop_nsymlink_args vu_nsymlink; 669 struct vop_nwhiteout_args vu_nwhiteout; 670 struct vop_nremove_args vu_nremove; 671 struct vop_nrmdir_args vu_nrmdir; 672 struct vop_nrename_args vu_nrename; 673 }; 674 675 #ifdef _KERNEL 676 677 /* 678 * Kernel VOP call wrappers. These wrappers are responsible for wrapping 679 * the arguments in the appropriate VOP arguments structure, sending the 680 * message, and waiting for a reply. All kernel and VFS code should generally 681 * call these wrappers rather then attempt to call the operations vector 682 * routine directly in order to allow DragonFly to properly wrap the operation 683 * in a message and dispatch it to the correct thread. 684 */ 685 int vop_islocked(struct vop_ops *ops, struct vnode *vp, struct thread *td); 686 int vop_old_lookup(struct vop_ops *ops, struct vnode *dvp, 687 struct vnode **vpp, struct componentname *cnp); 688 int vop_old_create(struct vop_ops *ops, struct vnode *dvp, 689 struct vnode **vpp, struct componentname *cnp, 690 struct vattr *vap); 691 int vop_old_whiteout(struct vop_ops *ops, struct vnode *dvp, 692 struct componentname *cnp, int flags); 693 int vop_old_mknod(struct vop_ops *ops, struct vnode *dvp, 694 struct vnode **vpp, struct componentname *cnp, 695 struct vattr *vap); 696 int vop_open(struct vop_ops *ops, struct vnode *vp, int mode, 697 struct ucred *cred, struct file *file); 698 int vop_close(struct vop_ops *ops, struct vnode *vp, int fflag); 699 int vop_access(struct vop_ops *ops, struct vnode *vp, int mode, 700 struct ucred *cred); 701 int vop_getattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap); 702 int vop_setattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap, 703 struct ucred *cred); 704 int vop_read(struct vop_ops *ops, struct vnode *vp, struct uio *uio, 705 int ioflag, struct ucred *cred); 706 int vop_write(struct vop_ops *ops, struct vnode *vp, struct uio *uio, 707 int ioflag, struct ucred *cred); 708 int vop_ioctl(struct vop_ops *ops, struct vnode *vp, u_long command, 709 caddr_t data, int fflag, struct ucred *cred); 710 int vop_poll(struct vop_ops *ops, struct vnode *vp, int events, 711 struct ucred *cred); 712 int vop_kqfilter(struct vop_ops *ops, struct vnode *vp, struct knote *kn); 713 int vop_revoke(struct vop_ops *ops, struct vnode *vp, int flags); 714 int vop_mmap(struct vop_ops *ops, struct vnode *vp, int fflags, 715 struct ucred *cred); 716 int vop_fsync(struct vop_ops *ops, struct vnode *vp, int waitfor); 717 int vop_old_remove(struct vop_ops *ops, struct vnode *dvp, 718 struct vnode *vp, struct componentname *cnp); 719 int vop_old_link(struct vop_ops *ops, struct vnode *tdvp, 720 struct vnode *vp, struct componentname *cnp); 721 int vop_old_rename(struct vop_ops *ops, struct vnode *fdvp, 722 struct vnode *fvp, struct componentname *fcnp, 723 struct vnode *tdvp, struct vnode *tvp, 724 struct componentname *tcnp); 725 int vop_old_mkdir(struct vop_ops *ops, struct vnode *dvp, 726 struct vnode **vpp, struct componentname *cnp, 727 struct vattr *vap); 728 int vop_old_rmdir(struct vop_ops *ops, struct vnode *dvp, 729 struct vnode *vp, struct componentname *cnp); 730 int vop_old_symlink(struct vop_ops *ops, struct vnode *dvp, 731 struct vnode **vpp, struct componentname *cnp, 732 struct vattr *vap, char *target); 733 int vop_readdir(struct vop_ops *ops, struct vnode *vp, struct uio *uio, 734 struct ucred *cred, int *eofflag, 735 int *ncookies, u_long **cookies); 736 int vop_readlink(struct vop_ops *ops, struct vnode *vp, struct uio *uio, 737 struct ucred *cred); 738 int vop_inactive(struct vop_ops *ops, struct vnode *vp); 739 int vop_reclaim(struct vop_ops *ops, struct vnode *vp); 740 int vop_lock(struct vop_ops *ops, struct vnode *vp, int flags); 741 int vop_unlock(struct vop_ops *ops, struct vnode *vp, int flags); 742 int vop_bmap(struct vop_ops *ops, struct vnode *vp, off_t loffset, 743 struct vnode **vpp, off_t *doffsetp, int *runp, int *runb); 744 int vop_strategy(struct vop_ops *ops, struct vnode *vp, struct bio *bio); 745 int vop_print(struct vop_ops *ops, struct vnode *vp); 746 int vop_pathconf(struct vop_ops *ops, struct vnode *vp, int name, 747 register_t *retval); 748 int vop_advlock(struct vop_ops *ops, struct vnode *vp, caddr_t id, int op, 749 struct flock *fl, int flags); 750 int vop_balloc(struct vop_ops *ops, struct vnode *vp, off_t startoffset, 751 int size, struct ucred *cred, int flags, 752 struct buf **bpp); 753 int vop_reallocblks(struct vop_ops *ops, struct vnode *vp, 754 struct cluster_save *buflist); 755 int vop_getpages(struct vop_ops *ops, struct vnode *vp, struct vm_page **m, 756 int count, int reqpage, vm_ooffset_t offset); 757 int vop_putpages(struct vop_ops *ops, struct vnode *vp, struct vm_page **m, 758 int count, int sync, int *rtvals, vm_ooffset_t offset); 759 int vop_freeblks(struct vop_ops *ops, struct vnode *vp, 760 off_t offset, int length); 761 int vop_getacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type, 762 struct acl *aclp, struct ucred *cred); 763 int vop_setacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type, 764 struct acl *aclp, struct ucred *cred); 765 int vop_aclcheck(struct vop_ops *ops, struct vnode *vp, acl_type_t type, 766 struct acl *aclp, struct ucred *cred); 767 int vop_getextattr(struct vop_ops *ops, struct vnode *vp, char *name, 768 struct uio *uio, struct ucred *cred); 769 int vop_setextattr(struct vop_ops *ops, struct vnode *vp, char *name, 770 struct uio *uio, struct ucred *cred); 771 int vop_mountctl(struct vop_ops *ops, int op, struct file *fp, 772 const void *ctl, int ctllen, void *buf, int buflen, int *res); 773 int vop_nresolve(struct vop_ops *ops, struct namecache *ncp, 774 struct ucred *cred); 775 int vop_nlookupdotdot(struct vop_ops *ops, struct vnode *dvp, 776 struct vnode **vpp, struct ucred *cred); 777 int vop_ncreate(struct vop_ops *ops, struct namecache *ncp, 778 struct vnode **vpp, struct ucred *cred, struct vattr *vap); 779 int vop_nmkdir(struct vop_ops *ops, struct namecache *ncp, 780 struct vnode **vpp, struct ucred *cred, struct vattr *vap); 781 int vop_nmknod(struct vop_ops *ops, struct namecache *ncp, 782 struct vnode **vpp, struct ucred *cred, struct vattr *vap); 783 int vop_nlink(struct vop_ops *ops, struct namecache *ncp, struct vnode *vp, 784 struct ucred *cred); 785 int vop_nsymlink(struct vop_ops *ops, struct namecache *ncp, 786 struct vnode **vpp, struct ucred *cred, 787 struct vattr *vap, char *target); 788 int vop_nwhiteout(struct vop_ops *ops, struct namecache *ncp, 789 struct ucred *cred, int flags); 790 int vop_nremove(struct vop_ops *ops, struct namecache *ncp, 791 struct ucred *cred); 792 int vop_nrmdir(struct vop_ops *ops, struct namecache *ncp, 793 struct ucred *cred); 794 int vop_nrename(struct vop_ops *ops, struct namecache *fncp, 795 struct namecache *tncp, struct ucred *cred); 796 797 /* 798 * Kernel VOP forwarding wrappers. These are called when a VFS such as 799 * nullfs or unionfs needs to push down into another VFS, changing the 800 * a_ops pointer and consequentially necessitating additional 801 * cache management. 802 * 803 * Note that this is different from vop_ops chaining within the same 804 * filesystem. When a filesystem chains a vop_ops it just uses VOCALLs. 805 */ 806 int vop_vnoperate_ap(struct vop_generic_args *ap); 807 int vop_cache_operate_ap(struct vop_generic_args *ap); 808 int vop_journal_operate_ap(struct vop_generic_args *ap); 809 int vop_islocked_ap(struct vop_islocked_args *ap); 810 int vop_old_lookup_ap(struct vop_old_lookup_args *ap); 811 int vop_old_create_ap(struct vop_old_create_args *ap); 812 int vop_old_whiteout_ap(struct vop_old_whiteout_args *ap); 813 int vop_old_mknod_ap(struct vop_old_mknod_args *ap); 814 int vop_open_ap(struct vop_open_args *ap); 815 int vop_close_ap(struct vop_close_args *ap); 816 int vop_access_ap(struct vop_access_args *ap); 817 int vop_getattr_ap(struct vop_getattr_args *ap); 818 int vop_setattr_ap(struct vop_setattr_args *ap); 819 int vop_read_ap(struct vop_read_args *ap); 820 int vop_write_ap(struct vop_write_args *ap); 821 int vop_ioctl_ap(struct vop_ioctl_args *ap); 822 int vop_poll_ap(struct vop_poll_args *ap); 823 int vop_kqfilter_ap(struct vop_kqfilter_args *ap); 824 int vop_revoke_ap(struct vop_revoke_args *ap); 825 int vop_mmap_ap(struct vop_mmap_args *ap); 826 int vop_fsync_ap(struct vop_fsync_args *ap); 827 int vop_old_remove_ap(struct vop_old_remove_args *ap); 828 int vop_old_link_ap(struct vop_old_link_args *ap); 829 int vop_old_rename_ap(struct vop_old_rename_args *ap); 830 int vop_old_mkdir_ap(struct vop_old_mkdir_args *ap); 831 int vop_old_rmdir_ap(struct vop_old_rmdir_args *ap); 832 int vop_old_symlink_ap(struct vop_old_symlink_args *ap); 833 int vop_readdir_ap(struct vop_readdir_args *ap); 834 int vop_readlink_ap(struct vop_readlink_args *ap); 835 int vop_inactive_ap(struct vop_inactive_args *ap); 836 int vop_reclaim_ap(struct vop_reclaim_args *ap); 837 int vop_lock_ap(struct vop_lock_args *ap); 838 int vop_unlock_ap(struct vop_unlock_args *ap); 839 int vop_bmap_ap(struct vop_bmap_args *ap); 840 int vop_strategy_ap(struct vop_strategy_args *ap); 841 int vop_print_ap(struct vop_print_args *ap); 842 int vop_pathconf_ap(struct vop_pathconf_args *ap); 843 int vop_advlock_ap(struct vop_advlock_args *ap); 844 int vop_balloc_ap(struct vop_balloc_args *ap); 845 int vop_reallocblks_ap(struct vop_reallocblks_args *ap); 846 int vop_getpages_ap(struct vop_getpages_args *ap); 847 int vop_putpages_ap(struct vop_putpages_args *ap); 848 int vop_freeblks_ap(struct vop_freeblks_args *ap); 849 int vop_getacl_ap(struct vop_getacl_args *ap); 850 int vop_setacl_ap(struct vop_setacl_args *ap); 851 int vop_aclcheck_ap(struct vop_aclcheck_args *ap); 852 int vop_getextattr_ap(struct vop_getextattr_args *ap); 853 int vop_setextattr_ap(struct vop_setextattr_args *ap); 854 int vop_mountctl_ap(struct vop_mountctl_args *ap); 855 856 int vop_nresolve_ap(struct vop_nresolve_args *ap); 857 int vop_nlookupdotdot_ap(struct vop_nlookupdotdot_args *ap); 858 int vop_ncreate_ap(struct vop_ncreate_args *ap); 859 int vop_nmkdir_ap(struct vop_nmkdir_args *ap); 860 int vop_nmknod_ap(struct vop_nmknod_args *ap); 861 int vop_nlink_ap(struct vop_nlink_args *ap); 862 int vop_nsymlink_ap(struct vop_nsymlink_args *ap); 863 int vop_nwhiteout_ap(struct vop_nwhiteout_args *ap); 864 int vop_nremove_ap(struct vop_nremove_args *ap); 865 int vop_nrmdir_ap(struct vop_nrmdir_args *ap); 866 int vop_nrename_ap(struct vop_nrename_args *ap); 867 868 /* 869 * VOP operations descriptor. This is used by the vop_ops compiler 870 * to convert VFS vector arrays (typically in vfs/blah/blah_vnops.c) 871 * into a vop_ops operations vector. 872 */ 873 extern struct syslink_desc vop_default_desc; 874 extern struct syslink_desc vop_islocked_desc; 875 extern struct syslink_desc vop_old_lookup_desc; 876 extern struct syslink_desc vop_old_create_desc; 877 extern struct syslink_desc vop_old_whiteout_desc; 878 extern struct syslink_desc vop_old_mknod_desc; 879 extern struct syslink_desc vop_open_desc; 880 extern struct syslink_desc vop_close_desc; 881 extern struct syslink_desc vop_access_desc; 882 extern struct syslink_desc vop_getattr_desc; 883 extern struct syslink_desc vop_setattr_desc; 884 extern struct syslink_desc vop_read_desc; 885 extern struct syslink_desc vop_write_desc; 886 extern struct syslink_desc vop_ioctl_desc; 887 extern struct syslink_desc vop_poll_desc; 888 extern struct syslink_desc vop_kqfilter_desc; 889 extern struct syslink_desc vop_revoke_desc; 890 extern struct syslink_desc vop_mmap_desc; 891 extern struct syslink_desc vop_fsync_desc; 892 extern struct syslink_desc vop_old_remove_desc; 893 extern struct syslink_desc vop_old_link_desc; 894 extern struct syslink_desc vop_old_rename_desc; 895 extern struct syslink_desc vop_old_mkdir_desc; 896 extern struct syslink_desc vop_old_rmdir_desc; 897 extern struct syslink_desc vop_old_symlink_desc; 898 extern struct syslink_desc vop_readdir_desc; 899 extern struct syslink_desc vop_readlink_desc; 900 extern struct syslink_desc vop_inactive_desc; 901 extern struct syslink_desc vop_reclaim_desc; 902 extern struct syslink_desc vop_lock_desc; 903 extern struct syslink_desc vop_unlock_desc; 904 extern struct syslink_desc vop_bmap_desc; 905 extern struct syslink_desc vop_strategy_desc; 906 extern struct syslink_desc vop_print_desc; 907 extern struct syslink_desc vop_pathconf_desc; 908 extern struct syslink_desc vop_advlock_desc; 909 extern struct syslink_desc vop_balloc_desc; 910 extern struct syslink_desc vop_reallocblks_desc; 911 extern struct syslink_desc vop_getpages_desc; 912 extern struct syslink_desc vop_putpages_desc; 913 extern struct syslink_desc vop_freeblks_desc; 914 extern struct syslink_desc vop_getacl_desc; 915 extern struct syslink_desc vop_setacl_desc; 916 extern struct syslink_desc vop_aclcheck_desc; 917 extern struct syslink_desc vop_getextattr_desc; 918 extern struct syslink_desc vop_setextattr_desc; 919 extern struct syslink_desc vop_mountctl_desc; 920 921 extern struct syslink_desc vop_nresolve_desc; 922 extern struct syslink_desc vop_nlookupdotdot_desc; 923 extern struct syslink_desc vop_ncreate_desc; 924 extern struct syslink_desc vop_nmkdir_desc; 925 extern struct syslink_desc vop_nmknod_desc; 926 extern struct syslink_desc vop_nlink_desc; 927 extern struct syslink_desc vop_nsymlink_desc; 928 extern struct syslink_desc vop_nwhiteout_desc; 929 extern struct syslink_desc vop_nremove_desc; 930 extern struct syslink_desc vop_nrmdir_desc; 931 extern struct syslink_desc vop_nrename_desc; 932 933 #endif 934 935 /* 936 * VOP_*() convenience macros extract the operations vector and make the 937 * vop_*() call. 938 */ 939 #define VOP_ISLOCKED(vp, td) \ 940 vop_islocked(*(vp)->v_ops, vp, td) 941 #define VOP_OPEN(vp, mode, cred, fp) \ 942 vop_open(*(vp)->v_ops, vp, mode, cred, fp) 943 #define VOP_CLOSE(vp, fflag) \ 944 vop_close(*(vp)->v_ops, vp, fflag) 945 #define VOP_ACCESS(vp, mode, cred) \ 946 vop_access(*(vp)->v_ops, vp, mode, cred) 947 #define VOP_GETATTR(vp, vap) \ 948 vop_getattr(*(vp)->v_ops, vp, vap) 949 #define VOP_SETATTR(vp, vap, cred) \ 950 vop_setattr(*(vp)->v_ops, vp, vap, cred) 951 #define VOP_READ(vp, uio, ioflag, cred) \ 952 vop_read(*(vp)->v_ops, vp, uio, ioflag, cred) 953 #define VOP_WRITE(vp, uio, ioflag, cred) \ 954 vop_write(*(vp)->v_ops, vp, uio, ioflag, cred) 955 #define VOP_IOCTL(vp, command, data, fflag, cred) \ 956 vop_ioctl(*(vp)->v_ops, vp, command, data, fflag, cred) 957 #define VOP_POLL(vp, events, cred) \ 958 vop_poll(*(vp)->v_ops, vp, events, cred) 959 #define VOP_KQFILTER(vp, kn) \ 960 vop_kqfilter(*(vp)->v_ops, vp, kn) 961 #define VOP_REVOKE(vp, flags) \ 962 vop_revoke(*(vp)->v_ops, vp, flags) 963 #define VOP_MMAP(vp, fflags, cred) \ 964 vop_mmap(*(vp)->v_ops, vp, fflags, cred) 965 #define VOP_FSYNC(vp, waitfor) \ 966 vop_fsync(*(vp)->v_ops, vp, waitfor) 967 #define VOP_READDIR(vp, uio, cred, eofflag, ncookies, cookies) \ 968 vop_readdir(*(vp)->v_ops, vp, uio, cred, eofflag, ncookies, cookies) 969 #define VOP_READLINK(vp, uio, cred) \ 970 vop_readlink(*(vp)->v_ops, vp, uio, cred) 971 #define VOP_INACTIVE(vp) \ 972 vop_inactive(*(vp)->v_ops, vp) 973 #define VOP_RECLAIM(vp) \ 974 vop_reclaim(*(vp)->v_ops, vp) 975 #define VOP_LOCK(vp, flags) \ 976 vop_lock(*(vp)->v_ops, vp, flags) 977 #define VOP_UNLOCK(vp, flags) \ 978 vop_unlock(*(vp)->v_ops, vp, flags) 979 #define VOP_BMAP(vp, loff, vpp, doffp, runp, runb) \ 980 vop_bmap(*(vp)->v_ops, vp, loff, vpp, doffp, runp, runb) 981 #define VOP_PRINT(vp) \ 982 vop_print(*(vp)->v_ops, vp) 983 #define VOP_PATHCONF(vp, name, retval) \ 984 vop_pathconf(*(vp)->v_ops, vp, name, retval) 985 #define VOP_ADVLOCK(vp, id, op, fl, flags) \ 986 vop_advlock(*(vp)->v_ops, vp, id, op, fl, flags) 987 #define VOP_BALLOC(vp, offset, size, cred, flags, bpp) \ 988 vop_balloc(*(vp)->v_ops, vp, offset, size, cred, flags, bpp) 989 #define VOP_REALLOCBLKS(vp, buflist) \ 990 vop_reallocblks(*(vp)->v_ops, vp, buflist) 991 #define VOP_GETPAGES(vp, m, count, reqpage, off) \ 992 vop_getpages(*(vp)->v_ops, vp, m, count, reqpage, off) 993 #define VOP_PUTPAGES(vp, m, count, sync, rtvals, off) \ 994 vop_putpages(*(vp)->v_ops, vp, m, count, sync, rtvals, off) 995 #define VOP_FREEBLKS(vp, offset, length) \ 996 vop_freeblks(*(vp)->v_ops, vp, offset, length) 997 #define VOP_GETACL(vp, type, aclp, cred) \ 998 vop_getacl(*(vp)->v_ops, vp, type, aclp, cred) 999 #define VOP_SETACL(vp, type, aclp, cred) \ 1000 vop_setacl(*(vp)->v_ops, vp, type, aclp, cred) 1001 #define VOP_ACLCHECK(vp, type, aclp, cred) \ 1002 vop_aclcheck(*(vp)->v_ops, vp, type, aclp, cred) 1003 #define VOP_GETEXTATTR(vp, name, uio, cred) \ 1004 vop_getextattr(*(vp)->v_ops, vp, name, uio, cred) 1005 #define VOP_SETEXTATTR(vp, name, uio, cred) \ 1006 vop_setextattr(*(vp)->v_ops, vp, name, uio, cred) 1007 /* no VOP_VFSSET() */ 1008 /* VOP_STRATEGY - does not exist, use vn_strategy() */ 1009 1010 /* 1011 * 'OLD' VOP calls. These calls may only be made by the new API 1012 * compatibility functions in kern/vfs_default.c. Attempting to 1013 * call these functions directly will confuse the namecache. These 1014 * calls are deprecated and being removed from the system and from 1015 * the VFS's. 1016 */ 1017 #define VOP_OLD_LOOKUP(dvp, vpp, cnp) \ 1018 vop_old_lookup(*(dvp)->v_ops, dvp, vpp, cnp) 1019 #define VOP_OLD_CREATE(dvp, vpp, cnp, vap) \ 1020 vop_old_create(*(dvp)->v_ops, dvp, vpp, cnp, vap) 1021 #define VOP_OLD_MKDIR(dvp, vpp, cnp, vap) \ 1022 vop_old_mkdir(*(dvp)->v_ops, dvp, vpp, cnp, vap) 1023 #define VOP_OLD_MKNOD(dvp, vpp, cnp, vap) \ 1024 vop_old_mknod(*(dvp)->v_ops, dvp, vpp, cnp, vap) 1025 #define VOP_OLD_LINK(tdvp, vp, cnp) \ 1026 vop_old_link(*(tdvp)->v_ops, tdvp, vp, cnp) 1027 #define VOP_OLD_SYMLINK(dvp, vpp, cnp, vap, target) \ 1028 vop_old_symlink(*(dvp)->v_ops, dvp, vpp, cnp, vap, target) 1029 #define VOP_OLD_WHITEOUT(dvp, cnp, flags) \ 1030 vop_old_whiteout(*(dvp)->v_ops, dvp, cnp, flags) 1031 #define VOP_OLD_RENAME(fdvp, fvp, fcnp, tdvp, tvp, tcnp) \ 1032 vop_old_rename(*(fdvp)->v_ops, fdvp, fvp, fcnp, tdvp, tvp, tcnp) 1033 #define VOP_OLD_RMDIR(dvp, vp, cnp) \ 1034 vop_old_rmdir(*(dvp)->v_ops, dvp, vp, cnp) 1035 #define VOP_OLD_REMOVE(dvp, vp, cnp) \ 1036 vop_old_remove(*(dvp)->v_ops, dvp, vp, cnp) 1037 1038 /* 1039 * 'NEW' VOP calls. These calls use namespaces as an operational basis 1040 * rather then vnodes and replace the OLD calls. Eventually all VFS's 1041 * will support these calls. Those that do not fall through to compatibility 1042 * code in kern/vfs_default which does the magic required to call the old 1043 * routines. 1044 */ 1045 #define VOP_NRESOLVE(ncp, cred) \ 1046 vop_nresolve((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred) 1047 #define VOP_NCREATE(ncp, vpp, cred, vap) \ 1048 vop_ncreate((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap) 1049 #define VOP_NMKDIR(ncp, vpp, cred, vap) \ 1050 vop_nmkdir((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap) 1051 #define VOP_NMKNOD(ncp, vpp, cred, vap) \ 1052 vop_nmknod((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap) 1053 #define VOP_NLINK(ncp, vp, cred) \ 1054 vop_nlink((ncp)->nc_mount->mnt_vn_use_ops, ncp, vp, cred) 1055 #define VOP_NSYMLINK(ncp, vpp, cred, vap, target) \ 1056 vop_nsymlink((ncp)->nc_mount->mnt_vn_use_ops, ncp, vpp, cred, vap, target) 1057 #define VOP_NWHITEOUT(ncp, cred, flags) \ 1058 vop_nwhiteout((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred, flags) 1059 #define VOP_NRENAME(fncp, tncp, cred) \ 1060 vop_nrename((fncp)->nc_mount->mnt_vn_use_ops, fncp, tncp, cred) 1061 #define VOP_NRMDIR(ncp, cred) \ 1062 vop_nrmdir((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred) 1063 #define VOP_NREMOVE(ncp, cred) \ 1064 vop_nremove((ncp)->nc_mount->mnt_vn_use_ops, ncp, cred) 1065 1066 #endif 1067 1068