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 1.27 2006/10/27 04:56:33 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 nchandle; 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_old_lookup_args { 92 struct vop_generic_args a_head; 93 struct vnode *a_dvp; 94 struct vnode **a_vpp; 95 struct componentname *a_cnp; 96 }; 97 98 struct vop_old_create_args { 99 struct vop_generic_args a_head; 100 struct vnode *a_dvp; 101 struct vnode **a_vpp; 102 struct componentname *a_cnp; 103 struct vattr *a_vap; 104 }; 105 106 struct vop_old_whiteout_args { 107 struct vop_generic_args a_head; 108 struct vnode *a_dvp; 109 struct componentname *a_cnp; 110 int a_flags; 111 }; 112 113 struct vop_old_mknod_args { 114 struct vop_generic_args a_head; 115 struct vnode *a_dvp; 116 struct vnode **a_vpp; 117 struct componentname *a_cnp; 118 struct vattr *a_vap; 119 }; 120 121 struct vop_open_args { 122 struct vop_generic_args a_head; 123 struct vnode *a_vp; 124 int a_mode; 125 struct ucred *a_cred; 126 struct file *a_fp; /* optional fp for fileops override */ 127 }; 128 129 struct vop_close_args { 130 struct vop_generic_args a_head; 131 struct vnode *a_vp; 132 int a_fflag; 133 }; 134 135 struct vop_access_args { 136 struct vop_generic_args a_head; 137 struct vnode *a_vp; 138 int a_mode; 139 struct ucred *a_cred; 140 }; 141 142 struct vop_getattr_args { 143 struct vop_generic_args a_head; 144 struct vnode *a_vp; 145 struct vattr *a_vap; 146 }; 147 148 struct vop_setattr_args { 149 struct vop_generic_args a_head; 150 struct vnode *a_vp; 151 struct vattr *a_vap; 152 struct ucred *a_cred; 153 }; 154 155 struct vop_read_args { 156 struct vop_generic_args a_head; 157 struct vnode *a_vp; 158 struct uio *a_uio; 159 int a_ioflag; 160 struct ucred *a_cred; 161 }; 162 163 struct vop_write_args { 164 struct vop_generic_args a_head; 165 struct vnode *a_vp; 166 struct uio *a_uio; 167 int a_ioflag; 168 struct ucred *a_cred; 169 }; 170 171 struct vop_ioctl_args { 172 struct vop_generic_args a_head; 173 struct vnode *a_vp; 174 u_long a_command; 175 caddr_t a_data; 176 int a_fflag; 177 struct ucred *a_cred; 178 }; 179 180 struct vop_poll_args { 181 struct vop_generic_args a_head; 182 struct vnode *a_vp; 183 int a_events; 184 struct ucred *a_cred; 185 }; 186 187 struct vop_kqfilter_args { 188 struct vop_generic_args a_head; 189 struct vnode *a_vp; 190 struct knote *a_kn; 191 }; 192 193 struct vop_revoke_args { 194 struct vop_generic_args a_head; 195 struct vnode *a_vp; 196 int a_flags; 197 }; 198 199 struct vop_mmap_args { 200 struct vop_generic_args a_head; 201 struct vnode *a_vp; 202 int a_fflags; 203 struct ucred *a_cred; 204 }; 205 206 struct vop_fsync_args { 207 struct vop_generic_args a_head; 208 struct vnode *a_vp; 209 int a_waitfor; 210 }; 211 212 struct vop_old_remove_args { 213 struct vop_generic_args a_head; 214 struct vnode *a_dvp; 215 struct vnode *a_vp; 216 struct componentname *a_cnp; 217 }; 218 219 struct vop_old_link_args { 220 struct vop_generic_args a_head; 221 struct vnode *a_tdvp; 222 struct vnode *a_vp; 223 struct componentname *a_cnp; 224 }; 225 226 struct vop_old_rename_args { 227 struct vop_generic_args a_head; 228 struct vnode *a_fdvp; 229 struct vnode *a_fvp; 230 struct componentname *a_fcnp; 231 struct vnode *a_tdvp; 232 struct vnode *a_tvp; 233 struct componentname *a_tcnp; 234 }; 235 236 struct vop_old_mkdir_args { 237 struct vop_generic_args a_head; 238 struct vnode *a_dvp; 239 struct vnode **a_vpp; 240 struct componentname *a_cnp; 241 struct vattr *a_vap; 242 }; 243 244 struct vop_old_rmdir_args { 245 struct vop_generic_args a_head; 246 struct vnode *a_dvp; 247 struct vnode *a_vp; 248 struct componentname *a_cnp; 249 }; 250 251 struct vop_old_symlink_args { 252 struct vop_generic_args a_head; 253 struct vnode *a_dvp; 254 struct vnode **a_vpp; 255 struct componentname *a_cnp; 256 struct vattr *a_vap; 257 char *a_target; 258 }; 259 260 struct vop_readdir_args { 261 struct vop_generic_args a_head; 262 struct vnode *a_vp; 263 struct uio *a_uio; 264 struct ucred *a_cred; 265 int *a_eofflag; 266 int *a_ncookies; 267 u_long **a_cookies; 268 }; 269 270 struct vop_readlink_args { 271 struct vop_generic_args a_head; 272 struct vnode *a_vp; 273 struct uio *a_uio; 274 struct ucred *a_cred; 275 }; 276 277 struct vop_inactive_args { 278 struct vop_generic_args a_head; 279 struct vnode *a_vp; 280 }; 281 282 struct vop_reclaim_args { 283 struct vop_generic_args a_head; 284 struct vnode *a_vp; 285 }; 286 287 struct vop_bmap_args { 288 struct vop_generic_args a_head; 289 struct vnode *a_vp; 290 off_t a_loffset; 291 struct vnode **a_vpp; 292 off_t *a_doffsetp; 293 int *a_runp; 294 int *a_runb; 295 }; 296 297 struct vop_strategy_args { 298 struct vop_generic_args a_head; 299 struct vnode *a_vp; 300 struct bio *a_bio; 301 }; 302 303 struct vop_print_args { 304 struct vop_generic_args a_head; 305 struct vnode *a_vp; 306 }; 307 308 struct vop_pathconf_args { 309 struct vop_generic_args a_head; 310 struct vnode *a_vp; 311 int a_name; 312 register_t *a_retval; 313 }; 314 315 struct vop_advlock_args { 316 struct vop_generic_args a_head; 317 struct vnode *a_vp; 318 caddr_t a_id; 319 int a_op; 320 struct flock *a_fl; 321 int a_flags; 322 }; 323 324 struct vop_balloc_args { 325 struct vop_generic_args a_head; 326 struct vnode *a_vp; 327 off_t a_startoffset; 328 int a_size; 329 struct ucred *a_cred; 330 int a_flags; 331 struct buf **a_bpp; 332 }; 333 334 struct vop_reallocblks_args { 335 struct vop_generic_args a_head; 336 struct vnode *a_vp; 337 struct cluster_save *a_buflist; 338 }; 339 340 struct vop_getpages_args { 341 struct vop_generic_args a_head; 342 struct vnode *a_vp; 343 struct vm_page **a_m; 344 int a_count; 345 int a_reqpage; 346 vm_ooffset_t a_offset; 347 }; 348 349 struct vop_putpages_args { 350 struct vop_generic_args a_head; 351 struct vnode *a_vp; 352 struct vm_page **a_m; 353 int a_count; 354 int a_sync; 355 int *a_rtvals; 356 vm_ooffset_t a_offset; 357 }; 358 359 struct vop_freeblks_args { 360 struct vop_generic_args a_head; 361 struct vnode *a_vp; 362 off_t a_offset; 363 int a_length; 364 }; 365 366 struct vop_getacl_args { 367 struct vop_generic_args a_head; 368 struct vnode *a_vp; 369 acl_type_t a_type; 370 struct acl *a_aclp; 371 struct ucred *a_cred; 372 }; 373 374 struct vop_setacl_args { 375 struct vop_generic_args a_head; 376 struct vnode *a_vp; 377 acl_type_t a_type; 378 struct acl *a_aclp; 379 struct ucred *a_cred; 380 }; 381 382 struct vop_aclcheck_args { 383 struct vop_generic_args a_head; 384 struct vnode *a_vp; 385 acl_type_t a_type; 386 struct acl *a_aclp; 387 struct ucred *a_cred; 388 }; 389 390 struct vop_getextattr_args { 391 struct vop_generic_args a_head; 392 struct vnode *a_vp; 393 char *a_name; 394 struct uio *a_uio; 395 struct ucred *a_cred; 396 }; 397 398 struct vop_setextattr_args { 399 struct vop_generic_args a_head; 400 struct vnode *a_vp; 401 char *a_name; 402 struct uio *a_uio; 403 struct ucred *a_cred; 404 }; 405 406 struct vop_mountctl_args { 407 struct vop_generic_args a_head; 408 int a_op; 409 struct file *a_fp; 410 const void *a_ctl; 411 int a_ctllen; 412 void *a_buf; 413 int a_buflen; 414 int *a_res; 415 }; 416 417 /* 418 * NEW API 419 */ 420 struct vop_nresolve_args { 421 struct vop_generic_args a_head; 422 struct nchandle *a_nch; 423 struct ucred *a_cred; 424 }; 425 426 struct vop_nlookupdotdot_args { 427 struct vop_generic_args a_head; 428 struct vnode *a_dvp; 429 struct vnode **a_vpp; 430 struct ucred *a_cred; 431 }; 432 433 struct vop_ncreate_args { 434 struct vop_generic_args a_head; 435 struct nchandle *a_nch; /* locked namespace */ 436 struct vnode **a_vpp; /* returned refd & locked */ 437 struct ucred *a_cred; 438 struct vattr *a_vap; 439 }; 440 441 struct vop_nmkdir_args { 442 struct vop_generic_args a_head; 443 struct nchandle *a_nch; /* locked namespace */ 444 struct vnode **a_vpp; /* returned refd & locked */ 445 struct ucred *a_cred; 446 struct vattr *a_vap; 447 }; 448 449 struct vop_nmknod_args { 450 struct vop_generic_args a_head; 451 struct nchandle *a_nch; 452 struct vnode **a_vpp; 453 struct ucred *a_cred; 454 struct vattr *a_vap; 455 }; 456 457 struct vop_nlink_args { 458 struct vop_generic_args a_head; 459 struct nchandle *a_nch; 460 struct vnode *a_vp; 461 struct ucred *a_cred; 462 }; 463 464 struct vop_nsymlink_args { 465 struct vop_generic_args a_head; 466 struct nchandle *a_nch; 467 struct vnode **a_vpp; 468 struct ucred *a_cred; 469 struct vattr *a_vap; 470 char *a_target; 471 }; 472 473 struct vop_nwhiteout_args { 474 struct vop_generic_args a_head; 475 struct nchandle *a_nch; 476 struct ucred *a_cred; 477 int a_flags; 478 }; 479 480 struct vop_nremove_args { 481 struct vop_generic_args a_head; 482 struct nchandle *a_nch; /* locked namespace */ 483 struct ucred *a_cred; 484 }; 485 486 struct vop_nrmdir_args { 487 struct vop_generic_args a_head; 488 struct nchandle *a_nch; /* locked namespace */ 489 struct ucred *a_cred; 490 }; 491 492 struct vop_nrename_args { 493 struct vop_generic_args a_head; 494 struct nchandle *a_fnch; /* locked namespace / from */ 495 struct nchandle *a_tnch; /* locked namespace / to */ 496 struct ucred *a_cred; 497 }; 498 499 /* 500 * This structure is the post-compiled VOP operations vector. vop_ops are 501 * typically per-mount entities. The first section is used by our vop_*() 502 * function wrappers to implement hooks for per-mount management functions 503 * such as journaling and cache coherency protocols. The second section is 504 * the function dispatch for the VFSs. The functions are supposed to run 505 * in the context of the VFS's thread (if it has one) and should not be 506 * directly called from random kernel code. Note that VOCALL()s are direct 507 * calls used for chaining vop_ops structures from a VFS context. 508 */ 509 struct vop_ops { 510 struct { 511 struct mount *vv_mount; 512 } head; 513 514 #define vop_ops_first_field vop_default 515 int (*vop_default)(struct vop_generic_args *); 516 int (*vop_unused11)(void *); 517 int (*vop_old_lookup)(struct vop_old_lookup_args *); 518 int (*vop_unused03)(void *); 519 int (*vop_old_create)(struct vop_old_create_args *); 520 int (*vop_old_whiteout)(struct vop_old_whiteout_args *); 521 int (*vop_old_mknod)(struct vop_old_mknod_args *); 522 int (*vop_open)(struct vop_open_args *); 523 int (*vop_close)(struct vop_close_args *); 524 int (*vop_access)(struct vop_access_args *); 525 int (*vop_getattr)(struct vop_getattr_args *); 526 int (*vop_setattr)(struct vop_setattr_args *); 527 int (*vop_read)(struct vop_read_args *); 528 int (*vop_write)(struct vop_write_args *); 529 int (*vop_unused04)(void *); 530 int (*vop_ioctl)(struct vop_ioctl_args *); 531 int (*vop_poll)(struct vop_poll_args *); 532 int (*vop_kqfilter)(struct vop_kqfilter_args *); 533 int (*vop_revoke)(struct vop_revoke_args *); 534 int (*vop_mmap)(struct vop_mmap_args *); 535 int (*vop_fsync)(struct vop_fsync_args *); 536 int (*vop_old_remove)(struct vop_old_remove_args *); 537 int (*vop_old_link)(struct vop_old_link_args *); 538 int (*vop_old_rename)(struct vop_old_rename_args *); 539 int (*vop_old_mkdir)(struct vop_old_mkdir_args *); 540 int (*vop_old_rmdir)(struct vop_old_rmdir_args *); 541 int (*vop_old_symlink)(struct vop_old_symlink_args *); 542 int (*vop_readdir)(struct vop_readdir_args *); 543 int (*vop_readlink)(struct vop_readlink_args *); 544 int (*vop_inactive)(struct vop_inactive_args *); 545 int (*vop_reclaim)(struct vop_reclaim_args *); 546 int (*vop_unused09)(void *); 547 int (*vop_unused10)(void *); 548 int (*vop_bmap)(struct vop_bmap_args *); 549 int (*vop_strategy)(struct vop_strategy_args *); 550 int (*vop_print)(struct vop_print_args *); 551 int (*vop_pathconf)(struct vop_pathconf_args *); 552 int (*vop_advlock)(struct vop_advlock_args *); 553 int (*vop_balloc)(struct vop_balloc_args *); 554 int (*vop_reallocblks)(struct vop_reallocblks_args *); 555 int (*vop_getpages)(struct vop_getpages_args *); 556 int (*vop_putpages)(struct vop_putpages_args *); 557 int (*vop_freeblks)(struct vop_freeblks_args *); 558 int (*vop_unused05)(void *); 559 int (*vop_getacl)(struct vop_getacl_args *); 560 int (*vop_setacl)(struct vop_setacl_args *); 561 int (*vop_aclcheck)(struct vop_aclcheck_args *); 562 int (*vop_getextattr)(struct vop_getextattr_args *); 563 int (*vop_setextattr)(struct vop_setextattr_args *); 564 int (*vop_unused06)(void *); 565 int (*vop_unused07)(void *); 566 int (*vop_unused08)(void *); 567 int (*vop_mountctl)(struct vop_mountctl_args *); 568 569 int (*vop_nresolve)(struct vop_nresolve_args *); 570 int (*vop_nlookupdotdot)(struct vop_nlookupdotdot_args *); 571 int (*vop_ncreate)(struct vop_ncreate_args *); 572 int (*vop_nmkdir)(struct vop_nmkdir_args *); 573 int (*vop_nmknod)(struct vop_nmknod_args *); 574 int (*vop_nlink)(struct vop_nlink_args *); 575 int (*vop_nsymlink)(struct vop_nsymlink_args *); 576 int (*vop_nwhiteout)(struct vop_nwhiteout_args *); 577 int (*vop_nremove)(struct vop_nremove_args *); 578 int (*vop_nrmdir)(struct vop_nrmdir_args *); 579 int (*vop_nrename)(struct vop_nrename_args *); 580 #define vop_ops_last_field vop_nrename 581 }; 582 583 /* 584 * vop_mountctl() operations 585 */ 586 #define VFSSET_DETACH 0 587 #define VFSSET_ATTACH 1 588 589 /* 590 * Kernel VOP arguments union, suitable for malloc / embedding in other 591 * structures. The vop_args_union can hold any VOP call argument structure. 592 * Note that vu_head is broken out. 593 */ 594 union vop_args_union { 595 struct vop_generic_args vu_head; 596 struct vop_generic_args vu_default; 597 struct vop_old_lookup_args vu_lookup; 598 struct vop_old_create_args vu_create; 599 struct vop_old_whiteout_args vu_whiteout; 600 struct vop_old_mknod_args vu_mknod; 601 struct vop_open_args vu_open; 602 struct vop_close_args vu_close; 603 struct vop_access_args vu_access; 604 struct vop_getattr_args vu_getattr; 605 struct vop_setattr_args vu_setattr; 606 struct vop_read_args vu_read; 607 struct vop_write_args vu_write; 608 struct vop_ioctl_args vu_ioctl; 609 struct vop_poll_args vu_poll; 610 struct vop_kqfilter_args vu_kqfilter; 611 struct vop_revoke_args vu_revoke; 612 struct vop_mmap_args vu_mmap; 613 struct vop_fsync_args vu_fsync; 614 struct vop_old_remove_args vu_remove; 615 struct vop_old_link_args vu_link; 616 struct vop_old_rename_args vu_rename; 617 struct vop_old_mkdir_args vu_mkdir; 618 struct vop_old_rmdir_args vu_rmdir; 619 struct vop_old_symlink_args vu_symlink; 620 struct vop_readdir_args vu_readdir; 621 struct vop_readlink_args vu_readlink; 622 struct vop_inactive_args vu_inactive; 623 struct vop_reclaim_args vu_reclaim; 624 struct vop_bmap_args vu_bmap; 625 struct vop_strategy_args vu_strategy; 626 struct vop_print_args vu_print; 627 struct vop_pathconf_args vu_pathconf; 628 struct vop_advlock_args vu_advlock; 629 struct vop_balloc_args vu_balloc; 630 struct vop_reallocblks_args vu_reallocblks; 631 struct vop_getpages_args vu_getpages; 632 struct vop_putpages_args vu_putpages; 633 struct vop_freeblks_args vu_freeblks; 634 struct vop_getacl_args vu_getacl; 635 struct vop_setacl_args vu_setacl; 636 struct vop_aclcheck_args vu_aclcheck; 637 struct vop_getextattr_args vu_getextattr; 638 struct vop_setextattr_args vu_setextattr; 639 struct vop_mountctl_args vu_mountctl; 640 641 struct vop_nresolve_args vu_nresolve; 642 struct vop_nlookupdotdot_args vu_nlookupdotdot; 643 struct vop_ncreate_args vu_ncreate; 644 struct vop_nmkdir_args vu_nmkdir; 645 struct vop_nmknod_args vu_nmknod; 646 struct vop_nlink_args vu_nlink; 647 struct vop_nsymlink_args vu_nsymlink; 648 struct vop_nwhiteout_args vu_nwhiteout; 649 struct vop_nremove_args vu_nremove; 650 struct vop_nrmdir_args vu_nrmdir; 651 struct vop_nrename_args vu_nrename; 652 }; 653 654 #ifdef _KERNEL 655 656 /* 657 * Kernel VOP call wrappers. These wrappers are responsible for wrapping 658 * the arguments in the appropriate VOP arguments structure, sending the 659 * message, and waiting for a reply. All kernel and VFS code should generally 660 * call these wrappers rather then attempt to call the operations vector 661 * routine directly in order to allow DragonFly to properly wrap the operation 662 * in a message and dispatch it to the correct thread. 663 */ 664 int vop_old_lookup(struct vop_ops *ops, struct vnode *dvp, 665 struct vnode **vpp, struct componentname *cnp); 666 int vop_old_create(struct vop_ops *ops, struct vnode *dvp, 667 struct vnode **vpp, struct componentname *cnp, 668 struct vattr *vap); 669 int vop_old_whiteout(struct vop_ops *ops, struct vnode *dvp, 670 struct componentname *cnp, int flags); 671 int vop_old_mknod(struct vop_ops *ops, struct vnode *dvp, 672 struct vnode **vpp, struct componentname *cnp, 673 struct vattr *vap); 674 int vop_open(struct vop_ops *ops, struct vnode *vp, int mode, 675 struct ucred *cred, struct file *file); 676 int vop_close(struct vop_ops *ops, struct vnode *vp, int fflag); 677 int vop_access(struct vop_ops *ops, struct vnode *vp, int mode, 678 struct ucred *cred); 679 int vop_getattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap); 680 int vop_setattr(struct vop_ops *ops, struct vnode *vp, struct vattr *vap, 681 struct ucred *cred); 682 int vop_read(struct vop_ops *ops, struct vnode *vp, struct uio *uio, 683 int ioflag, struct ucred *cred); 684 int vop_write(struct vop_ops *ops, struct vnode *vp, struct uio *uio, 685 int ioflag, struct ucred *cred); 686 int vop_ioctl(struct vop_ops *ops, struct vnode *vp, u_long command, 687 caddr_t data, int fflag, struct ucred *cred); 688 int vop_poll(struct vop_ops *ops, struct vnode *vp, int events, 689 struct ucred *cred); 690 int vop_kqfilter(struct vop_ops *ops, struct vnode *vp, struct knote *kn); 691 int vop_revoke(struct vop_ops *ops, struct vnode *vp, int flags); 692 int vop_mmap(struct vop_ops *ops, struct vnode *vp, int fflags, 693 struct ucred *cred); 694 int vop_fsync(struct vop_ops *ops, struct vnode *vp, int waitfor); 695 int vop_old_remove(struct vop_ops *ops, struct vnode *dvp, 696 struct vnode *vp, struct componentname *cnp); 697 int vop_old_link(struct vop_ops *ops, struct vnode *tdvp, 698 struct vnode *vp, struct componentname *cnp); 699 int vop_old_rename(struct vop_ops *ops, struct vnode *fdvp, 700 struct vnode *fvp, struct componentname *fcnp, 701 struct vnode *tdvp, struct vnode *tvp, 702 struct componentname *tcnp); 703 int vop_old_mkdir(struct vop_ops *ops, struct vnode *dvp, 704 struct vnode **vpp, struct componentname *cnp, 705 struct vattr *vap); 706 int vop_old_rmdir(struct vop_ops *ops, struct vnode *dvp, 707 struct vnode *vp, struct componentname *cnp); 708 int vop_old_symlink(struct vop_ops *ops, struct vnode *dvp, 709 struct vnode **vpp, struct componentname *cnp, 710 struct vattr *vap, char *target); 711 int vop_readdir(struct vop_ops *ops, struct vnode *vp, struct uio *uio, 712 struct ucred *cred, int *eofflag, 713 int *ncookies, u_long **cookies); 714 int vop_readlink(struct vop_ops *ops, struct vnode *vp, struct uio *uio, 715 struct ucred *cred); 716 int vop_inactive(struct vop_ops *ops, struct vnode *vp); 717 int vop_reclaim(struct vop_ops *ops, struct vnode *vp); 718 int vop_bmap(struct vop_ops *ops, struct vnode *vp, off_t loffset, 719 struct vnode **vpp, off_t *doffsetp, int *runp, int *runb); 720 int vop_strategy(struct vop_ops *ops, struct vnode *vp, struct bio *bio); 721 int vop_print(struct vop_ops *ops, struct vnode *vp); 722 int vop_pathconf(struct vop_ops *ops, struct vnode *vp, int name, 723 register_t *retval); 724 int vop_advlock(struct vop_ops *ops, struct vnode *vp, caddr_t id, int op, 725 struct flock *fl, int flags); 726 int vop_balloc(struct vop_ops *ops, struct vnode *vp, off_t startoffset, 727 int size, struct ucred *cred, int flags, 728 struct buf **bpp); 729 int vop_reallocblks(struct vop_ops *ops, struct vnode *vp, 730 struct cluster_save *buflist); 731 int vop_getpages(struct vop_ops *ops, struct vnode *vp, struct vm_page **m, 732 int count, int reqpage, vm_ooffset_t offset); 733 int vop_putpages(struct vop_ops *ops, struct vnode *vp, struct vm_page **m, 734 int count, int sync, int *rtvals, vm_ooffset_t offset); 735 int vop_freeblks(struct vop_ops *ops, struct vnode *vp, 736 off_t offset, int length); 737 int vop_getacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type, 738 struct acl *aclp, struct ucred *cred); 739 int vop_setacl(struct vop_ops *ops, struct vnode *vp, acl_type_t type, 740 struct acl *aclp, struct ucred *cred); 741 int vop_aclcheck(struct vop_ops *ops, struct vnode *vp, acl_type_t type, 742 struct acl *aclp, struct ucred *cred); 743 int vop_getextattr(struct vop_ops *ops, struct vnode *vp, char *name, 744 struct uio *uio, struct ucred *cred); 745 int vop_setextattr(struct vop_ops *ops, struct vnode *vp, char *name, 746 struct uio *uio, struct ucred *cred); 747 int vop_mountctl(struct vop_ops *ops, int op, struct file *fp, 748 const void *ctl, int ctllen, void *buf, int buflen, int *res); 749 int vop_nresolve(struct vop_ops *ops, struct nchandle *nch, 750 struct ucred *cred); 751 int vop_nlookupdotdot(struct vop_ops *ops, struct vnode *dvp, 752 struct vnode **vpp, struct ucred *cred); 753 int vop_ncreate(struct vop_ops *ops, struct nchandle *nch, 754 struct vnode **vpp, struct ucred *cred, struct vattr *vap); 755 int vop_nmkdir(struct vop_ops *ops, struct nchandle *nch, 756 struct vnode **vpp, struct ucred *cred, struct vattr *vap); 757 int vop_nmknod(struct vop_ops *ops, struct nchandle *nch, 758 struct vnode **vpp, struct ucred *cred, struct vattr *vap); 759 int vop_nlink(struct vop_ops *ops, struct nchandle *nch, struct vnode *vp, 760 struct ucred *cred); 761 int vop_nsymlink(struct vop_ops *ops, struct nchandle *nch, 762 struct vnode **vpp, struct ucred *cred, 763 struct vattr *vap, char *target); 764 int vop_nwhiteout(struct vop_ops *ops, struct nchandle *nch, 765 struct ucred *cred, int flags); 766 int vop_nremove(struct vop_ops *ops, struct nchandle *nch, 767 struct ucred *cred); 768 int vop_nrmdir(struct vop_ops *ops, struct nchandle *nch, 769 struct ucred *cred); 770 int vop_nrename(struct vop_ops *ops, struct nchandle *fnch, 771 struct nchandle *tnch, struct ucred *cred); 772 773 /* 774 * Kernel VOP forwarding wrappers. These are called when a VFS such as 775 * nullfs or unionfs needs to push down into another VFS, changing the 776 * a_ops pointer and consequentially necessitating additional 777 * cache management. 778 * 779 * Note that this is different from vop_ops chaining within the same 780 * filesystem. When a filesystem chains a vop_ops it just uses VOCALLs. 781 */ 782 int vop_vnoperate_ap(struct vop_generic_args *ap); 783 int vop_cache_operate_ap(struct vop_generic_args *ap); 784 int vop_journal_operate_ap(struct vop_generic_args *ap); 785 int vop_old_lookup_ap(struct vop_old_lookup_args *ap); 786 int vop_old_create_ap(struct vop_old_create_args *ap); 787 int vop_old_whiteout_ap(struct vop_old_whiteout_args *ap); 788 int vop_old_mknod_ap(struct vop_old_mknod_args *ap); 789 int vop_open_ap(struct vop_open_args *ap); 790 int vop_close_ap(struct vop_close_args *ap); 791 int vop_access_ap(struct vop_access_args *ap); 792 int vop_getattr_ap(struct vop_getattr_args *ap); 793 int vop_setattr_ap(struct vop_setattr_args *ap); 794 int vop_read_ap(struct vop_read_args *ap); 795 int vop_write_ap(struct vop_write_args *ap); 796 int vop_ioctl_ap(struct vop_ioctl_args *ap); 797 int vop_poll_ap(struct vop_poll_args *ap); 798 int vop_kqfilter_ap(struct vop_kqfilter_args *ap); 799 int vop_revoke_ap(struct vop_revoke_args *ap); 800 int vop_mmap_ap(struct vop_mmap_args *ap); 801 int vop_fsync_ap(struct vop_fsync_args *ap); 802 int vop_old_remove_ap(struct vop_old_remove_args *ap); 803 int vop_old_link_ap(struct vop_old_link_args *ap); 804 int vop_old_rename_ap(struct vop_old_rename_args *ap); 805 int vop_old_mkdir_ap(struct vop_old_mkdir_args *ap); 806 int vop_old_rmdir_ap(struct vop_old_rmdir_args *ap); 807 int vop_old_symlink_ap(struct vop_old_symlink_args *ap); 808 int vop_readdir_ap(struct vop_readdir_args *ap); 809 int vop_readlink_ap(struct vop_readlink_args *ap); 810 int vop_inactive_ap(struct vop_inactive_args *ap); 811 int vop_reclaim_ap(struct vop_reclaim_args *ap); 812 int vop_bmap_ap(struct vop_bmap_args *ap); 813 int vop_strategy_ap(struct vop_strategy_args *ap); 814 int vop_print_ap(struct vop_print_args *ap); 815 int vop_pathconf_ap(struct vop_pathconf_args *ap); 816 int vop_advlock_ap(struct vop_advlock_args *ap); 817 int vop_balloc_ap(struct vop_balloc_args *ap); 818 int vop_reallocblks_ap(struct vop_reallocblks_args *ap); 819 int vop_getpages_ap(struct vop_getpages_args *ap); 820 int vop_putpages_ap(struct vop_putpages_args *ap); 821 int vop_freeblks_ap(struct vop_freeblks_args *ap); 822 int vop_getacl_ap(struct vop_getacl_args *ap); 823 int vop_setacl_ap(struct vop_setacl_args *ap); 824 int vop_aclcheck_ap(struct vop_aclcheck_args *ap); 825 int vop_getextattr_ap(struct vop_getextattr_args *ap); 826 int vop_setextattr_ap(struct vop_setextattr_args *ap); 827 int vop_mountctl_ap(struct vop_mountctl_args *ap); 828 829 int vop_nresolve_ap(struct vop_nresolve_args *ap); 830 int vop_nlookupdotdot_ap(struct vop_nlookupdotdot_args *ap); 831 int vop_ncreate_ap(struct vop_ncreate_args *ap); 832 int vop_nmkdir_ap(struct vop_nmkdir_args *ap); 833 int vop_nmknod_ap(struct vop_nmknod_args *ap); 834 int vop_nlink_ap(struct vop_nlink_args *ap); 835 int vop_nsymlink_ap(struct vop_nsymlink_args *ap); 836 int vop_nwhiteout_ap(struct vop_nwhiteout_args *ap); 837 int vop_nremove_ap(struct vop_nremove_args *ap); 838 int vop_nrmdir_ap(struct vop_nrmdir_args *ap); 839 int vop_nrename_ap(struct vop_nrename_args *ap); 840 841 /* 842 * VOP operations descriptor. This is used by the vop_ops compiler 843 * to convert VFS vector arrays (typically in vfs/blah/blah_vnops.c) 844 * into a vop_ops operations vector. 845 */ 846 extern struct syslink_desc vop_default_desc; 847 extern struct syslink_desc vop_old_lookup_desc; 848 extern struct syslink_desc vop_old_create_desc; 849 extern struct syslink_desc vop_old_whiteout_desc; 850 extern struct syslink_desc vop_old_mknod_desc; 851 extern struct syslink_desc vop_open_desc; 852 extern struct syslink_desc vop_close_desc; 853 extern struct syslink_desc vop_access_desc; 854 extern struct syslink_desc vop_getattr_desc; 855 extern struct syslink_desc vop_setattr_desc; 856 extern struct syslink_desc vop_read_desc; 857 extern struct syslink_desc vop_write_desc; 858 extern struct syslink_desc vop_ioctl_desc; 859 extern struct syslink_desc vop_poll_desc; 860 extern struct syslink_desc vop_kqfilter_desc; 861 extern struct syslink_desc vop_revoke_desc; 862 extern struct syslink_desc vop_mmap_desc; 863 extern struct syslink_desc vop_fsync_desc; 864 extern struct syslink_desc vop_old_remove_desc; 865 extern struct syslink_desc vop_old_link_desc; 866 extern struct syslink_desc vop_old_rename_desc; 867 extern struct syslink_desc vop_old_mkdir_desc; 868 extern struct syslink_desc vop_old_rmdir_desc; 869 extern struct syslink_desc vop_old_symlink_desc; 870 extern struct syslink_desc vop_readdir_desc; 871 extern struct syslink_desc vop_readlink_desc; 872 extern struct syslink_desc vop_inactive_desc; 873 extern struct syslink_desc vop_reclaim_desc; 874 extern struct syslink_desc vop_bmap_desc; 875 extern struct syslink_desc vop_strategy_desc; 876 extern struct syslink_desc vop_print_desc; 877 extern struct syslink_desc vop_pathconf_desc; 878 extern struct syslink_desc vop_advlock_desc; 879 extern struct syslink_desc vop_balloc_desc; 880 extern struct syslink_desc vop_reallocblks_desc; 881 extern struct syslink_desc vop_getpages_desc; 882 extern struct syslink_desc vop_putpages_desc; 883 extern struct syslink_desc vop_freeblks_desc; 884 extern struct syslink_desc vop_getacl_desc; 885 extern struct syslink_desc vop_setacl_desc; 886 extern struct syslink_desc vop_aclcheck_desc; 887 extern struct syslink_desc vop_getextattr_desc; 888 extern struct syslink_desc vop_setextattr_desc; 889 extern struct syslink_desc vop_mountctl_desc; 890 891 extern struct syslink_desc vop_nresolve_desc; 892 extern struct syslink_desc vop_nlookupdotdot_desc; 893 extern struct syslink_desc vop_ncreate_desc; 894 extern struct syslink_desc vop_nmkdir_desc; 895 extern struct syslink_desc vop_nmknod_desc; 896 extern struct syslink_desc vop_nlink_desc; 897 extern struct syslink_desc vop_nsymlink_desc; 898 extern struct syslink_desc vop_nwhiteout_desc; 899 extern struct syslink_desc vop_nremove_desc; 900 extern struct syslink_desc vop_nrmdir_desc; 901 extern struct syslink_desc vop_nrename_desc; 902 903 #endif 904 905 /* 906 * VOP_*() convenience macros extract the operations vector and make the 907 * vop_*() call. 908 */ 909 #define VOP_OPEN(vp, mode, cred, fp) \ 910 vop_open(*(vp)->v_ops, vp, mode, cred, fp) 911 #define VOP_CLOSE(vp, fflag) \ 912 vop_close(*(vp)->v_ops, vp, fflag) 913 #define VOP_ACCESS(vp, mode, cred) \ 914 vop_access(*(vp)->v_ops, vp, mode, cred) 915 #define VOP_GETATTR(vp, vap) \ 916 vop_getattr(*(vp)->v_ops, vp, vap) 917 #define VOP_SETATTR(vp, vap, cred) \ 918 vop_setattr(*(vp)->v_ops, vp, vap, cred) 919 #define VOP_READ(vp, uio, ioflag, cred) \ 920 vop_read(*(vp)->v_ops, vp, uio, ioflag, cred) 921 #define VOP_WRITE(vp, uio, ioflag, cred) \ 922 vop_write(*(vp)->v_ops, vp, uio, ioflag, cred) 923 #define VOP_IOCTL(vp, command, data, fflag, cred) \ 924 vop_ioctl(*(vp)->v_ops, vp, command, data, fflag, cred) 925 #define VOP_POLL(vp, events, cred) \ 926 vop_poll(*(vp)->v_ops, vp, events, cred) 927 #define VOP_KQFILTER(vp, kn) \ 928 vop_kqfilter(*(vp)->v_ops, vp, kn) 929 #define VOP_REVOKE(vp, flags) \ 930 vop_revoke(*(vp)->v_ops, vp, flags) 931 #define VOP_MMAP(vp, fflags, cred) \ 932 vop_mmap(*(vp)->v_ops, vp, fflags, cred) 933 #define VOP_FSYNC(vp, waitfor) \ 934 vop_fsync(*(vp)->v_ops, vp, waitfor) 935 #define VOP_READDIR(vp, uio, cred, eofflag, ncookies, cookies) \ 936 vop_readdir(*(vp)->v_ops, vp, uio, cred, eofflag, ncookies, cookies) 937 #define VOP_READLINK(vp, uio, cred) \ 938 vop_readlink(*(vp)->v_ops, vp, uio, cred) 939 #define VOP_INACTIVE(vp) \ 940 vop_inactive(*(vp)->v_ops, vp) 941 #define VOP_RECLAIM(vp) \ 942 vop_reclaim(*(vp)->v_ops, vp) 943 #define VOP_BMAP(vp, loff, vpp, doffp, runp, runb) \ 944 vop_bmap(*(vp)->v_ops, vp, loff, vpp, doffp, runp, runb) 945 #define VOP_PRINT(vp) \ 946 vop_print(*(vp)->v_ops, vp) 947 #define VOP_PATHCONF(vp, name, retval) \ 948 vop_pathconf(*(vp)->v_ops, vp, name, retval) 949 #define VOP_ADVLOCK(vp, id, op, fl, flags) \ 950 vop_advlock(*(vp)->v_ops, vp, id, op, fl, flags) 951 #define VOP_BALLOC(vp, offset, size, cred, flags, bpp) \ 952 vop_balloc(*(vp)->v_ops, vp, offset, size, cred, flags, bpp) 953 #define VOP_REALLOCBLKS(vp, buflist) \ 954 vop_reallocblks(*(vp)->v_ops, vp, buflist) 955 #define VOP_GETPAGES(vp, m, count, reqpage, off) \ 956 vop_getpages(*(vp)->v_ops, vp, m, count, reqpage, off) 957 #define VOP_PUTPAGES(vp, m, count, sync, rtvals, off) \ 958 vop_putpages(*(vp)->v_ops, vp, m, count, sync, rtvals, off) 959 #define VOP_FREEBLKS(vp, offset, length) \ 960 vop_freeblks(*(vp)->v_ops, vp, offset, length) 961 #define VOP_GETACL(vp, type, aclp, cred) \ 962 vop_getacl(*(vp)->v_ops, vp, type, aclp, cred) 963 #define VOP_SETACL(vp, type, aclp, cred) \ 964 vop_setacl(*(vp)->v_ops, vp, type, aclp, cred) 965 #define VOP_ACLCHECK(vp, type, aclp, cred) \ 966 vop_aclcheck(*(vp)->v_ops, vp, type, aclp, cred) 967 #define VOP_GETEXTATTR(vp, name, uio, cred) \ 968 vop_getextattr(*(vp)->v_ops, vp, name, uio, cred) 969 #define VOP_SETEXTATTR(vp, name, uio, cred) \ 970 vop_setextattr(*(vp)->v_ops, vp, name, uio, cred) 971 /* no VOP_VFSSET() */ 972 /* VOP_STRATEGY - does not exist, use vn_strategy() */ 973 974 /* 975 * 'OLD' VOP calls. These calls may only be made by the new API 976 * compatibility functions in kern/vfs_default.c. Attempting to 977 * call these functions directly will confuse the namecache. These 978 * calls are deprecated and being removed from the system and from 979 * the VFS's. 980 */ 981 #define VOP_OLD_LOOKUP(dvp, vpp, cnp) \ 982 vop_old_lookup(*(dvp)->v_ops, dvp, vpp, cnp) 983 #define VOP_OLD_CREATE(dvp, vpp, cnp, vap) \ 984 vop_old_create(*(dvp)->v_ops, dvp, vpp, cnp, vap) 985 #define VOP_OLD_MKDIR(dvp, vpp, cnp, vap) \ 986 vop_old_mkdir(*(dvp)->v_ops, dvp, vpp, cnp, vap) 987 #define VOP_OLD_MKNOD(dvp, vpp, cnp, vap) \ 988 vop_old_mknod(*(dvp)->v_ops, dvp, vpp, cnp, vap) 989 #define VOP_OLD_LINK(tdvp, vp, cnp) \ 990 vop_old_link(*(tdvp)->v_ops, tdvp, vp, cnp) 991 #define VOP_OLD_SYMLINK(dvp, vpp, cnp, vap, target) \ 992 vop_old_symlink(*(dvp)->v_ops, dvp, vpp, cnp, vap, target) 993 #define VOP_OLD_WHITEOUT(dvp, cnp, flags) \ 994 vop_old_whiteout(*(dvp)->v_ops, dvp, cnp, flags) 995 #define VOP_OLD_RENAME(fdvp, fvp, fcnp, tdvp, tvp, tcnp) \ 996 vop_old_rename(*(fdvp)->v_ops, fdvp, fvp, fcnp, tdvp, tvp, tcnp) 997 #define VOP_OLD_RMDIR(dvp, vp, cnp) \ 998 vop_old_rmdir(*(dvp)->v_ops, dvp, vp, cnp) 999 #define VOP_OLD_REMOVE(dvp, vp, cnp) \ 1000 vop_old_remove(*(dvp)->v_ops, dvp, vp, cnp) 1001 1002 /* 1003 * 'NEW' VOP calls. These calls use namespaces as an operational basis 1004 * rather then vnodes and replace the OLD calls. Eventually all VFS's 1005 * will support these calls. Those that do not fall through to compatibility 1006 * code in kern/vfs_default which does the magic required to call the old 1007 * routines. 1008 */ 1009 #define VOP_NRESOLVE(nch, cred) \ 1010 vop_nresolve((nch)->mount->mnt_vn_use_ops, nch, cred) 1011 #define VOP_NCREATE(nch, vpp, cred, vap) \ 1012 vop_ncreate((nch)->mount->mnt_vn_use_ops, nch, vpp, cred, vap) 1013 #define VOP_NMKDIR(nch, vpp, cred, vap) \ 1014 vop_nmkdir((nch)->mount->mnt_vn_use_ops, nch, vpp, cred, vap) 1015 #define VOP_NMKNOD(nch, vpp, cred, vap) \ 1016 vop_nmknod((nch)->mount->mnt_vn_use_ops, nch, vpp, cred, vap) 1017 #define VOP_NLINK(nch, vp, cred) \ 1018 vop_nlink((nch)->mount->mnt_vn_use_ops, nch, vp, cred) 1019 #define VOP_NSYMLINK(nch, vpp, cred, vap, target) \ 1020 vop_nsymlink((nch)->mount->mnt_vn_use_ops, nch, vpp, cred, vap, target) 1021 #define VOP_NWHITEOUT(nch, cred, flags) \ 1022 vop_nwhiteout((nch)->mount->mnt_vn_use_ops, nch, cred, flags) 1023 #define VOP_NRENAME(fnch, tnch, cred) \ 1024 vop_nrename((fnch)->mount->mnt_vn_use_ops, fnch, tnch, cred) 1025 #define VOP_NRMDIR(nch, cred) \ 1026 vop_nrmdir((nch)->mount->mnt_vn_use_ops, nch, cred) 1027 #define VOP_NREMOVE(nch, cred) \ 1028 vop_nremove((nch)->mount->mnt_vn_use_ops, nch, cred) 1029 1030 #endif 1031 1032