1 /* 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software donated to Berkeley by 6 * Jan-Simon Pendry. 7 * 8 * %sccs.include.redist.c% 9 * 10 * @(#)kernfs_vnops.c 8.12 (Berkeley) 05/10/95 11 */ 12 13 /* 14 * Kernel parameter filesystem (/kern) 15 */ 16 17 #include <sys/param.h> 18 #include <sys/systm.h> 19 #include <sys/kernel.h> 20 #include <sys/vmmeter.h> 21 #include <sys/types.h> 22 #include <sys/time.h> 23 #include <sys/proc.h> 24 #include <sys/vnode.h> 25 #include <sys/malloc.h> 26 #include <sys/file.h> 27 #include <sys/stat.h> 28 #include <sys/mount.h> 29 #include <sys/namei.h> 30 #include <sys/buf.h> 31 #include <sys/dirent.h> 32 #include <miscfs/kernfs/kernfs.h> 33 34 #define KSTRING 256 /* Largest I/O available via this filesystem */ 35 #define UIO_MX 32 36 37 #define READ_MODE (S_IRUSR|S_IRGRP|S_IROTH) 38 #define WRITE_MODE (S_IWUSR|S_IRUSR|S_IRGRP|S_IROTH) 39 #define DIR_MODE (S_IRUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) 40 41 struct kern_target { 42 u_char kt_type; 43 u_char kt_namlen; 44 char *kt_name; 45 void *kt_data; 46 #define KTT_NULL 1 47 #define KTT_TIME 5 48 #define KTT_INT 17 49 #define KTT_STRING 31 50 #define KTT_HOSTNAME 47 51 #define KTT_AVENRUN 53 52 #define KTT_DEVICE 71 53 u_char kt_tag; 54 u_char kt_vtype; 55 mode_t kt_mode; 56 } kern_targets[] = { 57 /* NOTE: The name must be less than UIO_MX-16 chars in length */ 58 #define N(s) sizeof(s)-1, s 59 /* name data tag type ro/rw */ 60 { DT_DIR, N("."), 0, KTT_NULL, VDIR, DIR_MODE }, 61 { DT_DIR, N(".."), 0, KTT_NULL, VDIR, DIR_MODE }, 62 { DT_REG, N("boottime"), &boottime.tv_sec, KTT_INT, VREG, READ_MODE }, 63 { DT_REG, N("copyright"), copyright, KTT_STRING, VREG, READ_MODE }, 64 { DT_REG, N("hostname"), 0, KTT_HOSTNAME, VREG, WRITE_MODE }, 65 { DT_REG, N("hz"), &hz, KTT_INT, VREG, READ_MODE }, 66 { DT_REG, N("loadavg"), 0, KTT_AVENRUN, VREG, READ_MODE }, 67 { DT_REG, N("pagesize"), &cnt.v_page_size, KTT_INT, VREG, READ_MODE }, 68 { DT_REG, N("physmem"), &physmem, KTT_INT, VREG, READ_MODE }, 69 #if 0 70 { DT_DIR, N("root"), 0, KTT_NULL, VDIR, DIR_MODE }, 71 #endif 72 { DT_BLK, N("rootdev"), &rootdev, KTT_DEVICE, VBLK, READ_MODE }, 73 { DT_CHR, N("rrootdev"), &rrootdev, KTT_DEVICE, VCHR, READ_MODE }, 74 { DT_REG, N("time"), 0, KTT_TIME, VREG, READ_MODE }, 75 { DT_REG, N("version"), version, KTT_STRING, VREG, READ_MODE }, 76 #undef N 77 }; 78 static int nkern_targets = sizeof(kern_targets) / sizeof(kern_targets[0]); 79 80 static int 81 kernfs_xread(kt, buf, len, lenp) 82 struct kern_target *kt; 83 char *buf; 84 int len; 85 int *lenp; 86 { 87 88 switch (kt->kt_tag) { 89 case KTT_TIME: { 90 struct timeval tv; 91 microtime(&tv); 92 sprintf(buf, "%d %d\n", tv.tv_sec, tv.tv_usec); 93 break; 94 } 95 96 case KTT_INT: { 97 int *ip = kt->kt_data; 98 sprintf(buf, "%d\n", *ip); 99 break; 100 } 101 102 case KTT_STRING: { 103 char *cp = kt->kt_data; 104 int xlen = strlen(cp) + 1; 105 106 if (xlen >= len) 107 return (EINVAL); 108 109 bcopy(cp, buf, xlen); 110 break; 111 } 112 113 case KTT_HOSTNAME: { 114 char *cp = hostname; 115 int xlen = hostnamelen; 116 117 if (xlen >= (len-2)) 118 return (EINVAL); 119 120 bcopy(cp, buf, xlen); 121 buf[xlen] = '\n'; 122 buf[xlen+1] = '\0'; 123 break; 124 } 125 126 case KTT_AVENRUN: 127 sprintf(buf, "%ld %ld %ld %ld\n", 128 averunnable.ldavg[0], averunnable.ldavg[1], 129 averunnable.ldavg[2], averunnable.fscale); 130 break; 131 132 default: 133 return (EIO); 134 } 135 136 *lenp = strlen(buf); 137 return (0); 138 } 139 140 static int 141 kernfs_xwrite(kt, buf, len) 142 struct kern_target *kt; 143 char *buf; 144 int len; 145 { 146 147 switch (kt->kt_tag) { 148 case KTT_HOSTNAME: 149 if (buf[len-1] == '\n') 150 --len; 151 bcopy(buf, hostname, len); 152 hostname[len] = '\0'; 153 hostnamelen = len; 154 return (0); 155 156 default: 157 return (EIO); 158 } 159 } 160 161 162 /* 163 * vp is the current namei directory 164 * ndp is the name to locate in that directory... 165 */ 166 kernfs_lookup(ap) 167 struct vop_lookup_args /* { 168 struct vnode * a_dvp; 169 struct vnode ** a_vpp; 170 struct componentname * a_cnp; 171 } */ *ap; 172 { 173 struct componentname *cnp = ap->a_cnp; 174 struct vnode **vpp = ap->a_vpp; 175 struct vnode *dvp = ap->a_dvp; 176 char *pname = cnp->cn_nameptr; 177 struct kern_target *kt; 178 struct vnode *fvp; 179 int error, i; 180 181 #ifdef KERNFS_DIAGNOSTIC 182 printf("kernfs_lookup(%x)\n", ap); 183 printf("kernfs_lookup(dp = %x, vpp = %x, cnp = %x)\n", dvp, vpp, ap->a_cnp); 184 printf("kernfs_lookup(%s)\n", pname); 185 #endif 186 187 *vpp = NULLVP; 188 189 if (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME) 190 return (EROFS); 191 192 if (cnp->cn_namelen == 1 && *pname == '.') { 193 *vpp = dvp; 194 VREF(dvp); 195 /*VOP_LOCK(dvp);*/ 196 return (0); 197 } 198 199 #if 0 200 if (cnp->cn_namelen == 4 && bcmp(pname, "root", 4) == 0) { 201 *vpp = rootdir; 202 VREF(rootdir); 203 VOP_LOCK(rootdir); 204 return (0); 205 } 206 #endif 207 208 for (kt = kern_targets, i = 0; i < nkern_targets; kt++, i++) { 209 if (cnp->cn_namelen == kt->kt_namlen && 210 bcmp(kt->kt_name, pname, cnp->cn_namelen) == 0) 211 goto found; 212 } 213 214 #ifdef KERNFS_DIAGNOSTIC 215 printf("kernfs_lookup: i = %d, failed", i); 216 #endif 217 218 return (cnp->cn_nameiop == LOOKUP ? ENOENT : EROFS); 219 220 found: 221 if (kt->kt_tag == KTT_DEVICE) { 222 dev_t *dp = kt->kt_data; 223 loop: 224 if (*dp == NODEV || !vfinddev(*dp, kt->kt_vtype, &fvp)) 225 return (ENOENT); 226 *vpp = fvp; 227 if (vget(fvp, 1)) 228 goto loop; 229 return (0); 230 } 231 232 #ifdef KERNFS_DIAGNOSTIC 233 printf("kernfs_lookup: allocate new vnode\n"); 234 #endif 235 if (error = getnewvnode(VT_KERNFS, dvp->v_mount, kernfs_vnodeop_p, 236 &fvp)) 237 return (error); 238 239 MALLOC(fvp->v_data, void *, sizeof(struct kernfs_node), M_TEMP, 240 M_WAITOK); 241 VTOKERN(fvp)->kf_kt = kt; 242 fvp->v_type = kt->kt_vtype; 243 *vpp = fvp; 244 245 #ifdef KERNFS_DIAGNOSTIC 246 printf("kernfs_lookup: newvp = %x\n", fvp); 247 #endif 248 return (0); 249 } 250 251 kernfs_open(ap) 252 struct vop_open_args /* { 253 struct vnode *a_vp; 254 int a_mode; 255 struct ucred *a_cred; 256 struct proc *a_p; 257 } */ *ap; 258 { 259 260 /* Only need to check access permissions. */ 261 return (0); 262 } 263 264 static int 265 kernfs_access(ap) 266 struct vop_access_args /* { 267 struct vnode *a_vp; 268 int a_mode; 269 struct ucred *a_cred; 270 struct proc *a_p; 271 } */ *ap; 272 { 273 register struct vnode *vp = ap->a_vp; 274 register struct ucred *cred = ap->a_cred; 275 mode_t amode = ap->a_mode; 276 mode_t fmode = 277 (vp->v_flag & VROOT) ? DIR_MODE : VTOKERN(vp)->kf_kt->kt_mode; 278 mode_t mask = 0; 279 register gid_t *gp; 280 int i; 281 282 /* Some files are simply not modifiable. */ 283 if ((amode & VWRITE) && (fmode & (S_IWUSR|S_IWGRP|S_IWOTH)) == 0) 284 return (EPERM); 285 286 /* Root can do anything else. */ 287 if (cred->cr_uid == 0) 288 return (0); 289 290 /* Check for group 0 (wheel) permissions. */ 291 for (i = 0, gp = cred->cr_groups; i < cred->cr_ngroups; i++, gp++) 292 if (*gp == 0) { 293 if (amode & VEXEC) 294 mask |= S_IXGRP; 295 if (amode & VREAD) 296 mask |= S_IRGRP; 297 if (amode & VWRITE) 298 mask |= S_IWGRP; 299 return ((fmode & mask) == mask ? 0 : EACCES); 300 } 301 302 /* Otherwise, check everyone else. */ 303 if (amode & VEXEC) 304 mask |= S_IXOTH; 305 if (amode & VREAD) 306 mask |= S_IROTH; 307 if (amode & VWRITE) 308 mask |= S_IWOTH; 309 return ((fmode & mask) == mask ? 0 : EACCES); 310 } 311 312 kernfs_getattr(ap) 313 struct vop_getattr_args /* { 314 struct vnode *a_vp; 315 struct vattr *a_vap; 316 struct ucred *a_cred; 317 struct proc *a_p; 318 } */ *ap; 319 { 320 struct vnode *vp = ap->a_vp; 321 struct vattr *vap = ap->a_vap; 322 struct timeval tv; 323 int error = 0; 324 char strbuf[KSTRING]; 325 326 bzero((caddr_t) vap, sizeof(*vap)); 327 vattr_null(vap); 328 vap->va_uid = 0; 329 vap->va_gid = 0; 330 vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0]; 331 vap->va_size = 0; 332 vap->va_blocksize = DEV_BSIZE; 333 microtime(&tv); 334 TIMEVAL_TO_TIMESPEC(&tv, &vap->va_atime); 335 vap->va_mtime = vap->va_atime; 336 vap->va_ctime = vap->va_ctime; 337 vap->va_gen = 0; 338 vap->va_flags = 0; 339 vap->va_rdev = 0; 340 vap->va_bytes = 0; 341 342 if (vp->v_flag & VROOT) { 343 #ifdef KERNFS_DIAGNOSTIC 344 printf("kernfs_getattr: stat rootdir\n"); 345 #endif 346 vap->va_type = VDIR; 347 vap->va_mode = DIR_MODE; 348 vap->va_nlink = 2; 349 vap->va_fileid = 2; 350 vap->va_size = DEV_BSIZE; 351 } else { 352 struct kern_target *kt = VTOKERN(vp)->kf_kt; 353 int nbytes; 354 #ifdef KERNFS_DIAGNOSTIC 355 printf("kernfs_getattr: stat target %s\n", kt->kt_name); 356 #endif 357 vap->va_type = kt->kt_vtype; 358 vap->va_mode = kt->kt_mode; 359 vap->va_nlink = 1; 360 vap->va_fileid = 1 + (kt - kern_targets) / sizeof(*kt); 361 error = kernfs_xread(kt, strbuf, sizeof(strbuf), &nbytes); 362 vap->va_size = nbytes; 363 } 364 365 #ifdef KERNFS_DIAGNOSTIC 366 printf("kernfs_getattr: return error %d\n", error); 367 #endif 368 return (error); 369 } 370 371 kernfs_setattr(ap) 372 struct vop_setattr_args /* { 373 struct vnode *a_vp; 374 struct vattr *a_vap; 375 struct ucred *a_cred; 376 struct proc *a_p; 377 } */ *ap; 378 { 379 380 /* 381 * Silently ignore attribute changes. 382 * This allows for open with truncate to have no 383 * effect until some data is written. I want to 384 * do it this way because all writes are atomic. 385 */ 386 return (0); 387 } 388 389 static int 390 kernfs_read(ap) 391 struct vop_read_args /* { 392 struct vnode *a_vp; 393 struct uio *a_uio; 394 int a_ioflag; 395 struct ucred *a_cred; 396 } */ *ap; 397 { 398 struct vnode *vp = ap->a_vp; 399 struct uio *uio = ap->a_uio; 400 struct kern_target *kt; 401 char strbuf[KSTRING]; 402 int off = uio->uio_offset; 403 int error, len; 404 char *cp; 405 406 if (vp->v_type == VDIR) 407 return (EOPNOTSUPP); 408 409 kt = VTOKERN(vp)->kf_kt; 410 411 #ifdef KERNFS_DIAGNOSTIC 412 printf("kern_read %s\n", kt->kt_name); 413 #endif 414 415 len = 0; 416 if (error = kernfs_xread(kt, strbuf, sizeof(strbuf), &len)) 417 return (error); 418 if (len <= off) 419 return (0); 420 return (uiomove(&strbuf[off], len - off, uio)); 421 } 422 423 static int 424 kernfs_write(ap) 425 struct vop_write_args /* { 426 struct vnode *a_vp; 427 struct uio *a_uio; 428 int a_ioflag; 429 struct ucred *a_cred; 430 } */ *ap; 431 { 432 struct vnode *vp = ap->a_vp; 433 struct uio *uio = ap->a_uio; 434 struct kern_target *kt; 435 int error, xlen; 436 char strbuf[KSTRING]; 437 438 if (vp->v_type == VDIR) 439 return (EOPNOTSUPP); 440 441 kt = VTOKERN(vp)->kf_kt; 442 443 if (uio->uio_offset != 0) 444 return (EINVAL); 445 446 xlen = min(uio->uio_resid, KSTRING-1); 447 if (error = uiomove(strbuf, xlen, uio)) 448 return (error); 449 450 if (uio->uio_resid != 0) 451 return (EIO); 452 453 strbuf[xlen] = '\0'; 454 xlen = strlen(strbuf); 455 return (kernfs_xwrite(kt, strbuf, xlen)); 456 } 457 458 kernfs_readdir(ap) 459 struct vop_readdir_args /* { 460 struct vnode *a_vp; 461 struct uio *a_uio; 462 struct ucred *a_cred; 463 int *a_eofflag; 464 u_long *a_cookies; 465 int a_ncookies; 466 } */ *ap; 467 { 468 int error, i; 469 struct uio *uio = ap->a_uio; 470 struct kern_target *kt; 471 struct dirent d; 472 473 if (ap->a_vp->v_type != VDIR) 474 return (ENOTDIR); 475 476 /* 477 * We don't allow exporting kernfs mounts, and currently local 478 * requests do not need cookies. 479 */ 480 if (ap->a_ncookies != NULL) 481 panic("kernfs_readdir: not hungry"); 482 483 i = uio->uio_offset / UIO_MX; 484 error = 0; 485 for (kt = &kern_targets[i]; 486 uio->uio_resid >= UIO_MX && i < nkern_targets; kt++, i++) { 487 struct dirent *dp = &d; 488 #ifdef KERNFS_DIAGNOSTIC 489 printf("kernfs_readdir: i = %d\n", i); 490 #endif 491 492 if (kt->kt_tag == KTT_DEVICE) { 493 dev_t *dp = kt->kt_data; 494 struct vnode *fvp; 495 496 if (*dp == NODEV || !vfinddev(*dp, kt->kt_vtype, &fvp)) 497 continue; 498 } 499 500 bzero((caddr_t)dp, UIO_MX); 501 dp->d_namlen = kt->kt_namlen; 502 bcopy(kt->kt_name, dp->d_name, kt->kt_namlen+1); 503 504 #ifdef KERNFS_DIAGNOSTIC 505 printf("kernfs_readdir: name = %s, len = %d\n", 506 dp->d_name, dp->d_namlen); 507 #endif 508 /* 509 * Fill in the remaining fields 510 */ 511 dp->d_reclen = UIO_MX; 512 dp->d_fileno = i + 3; 513 dp->d_type = kt->kt_type; 514 /* 515 * And ship to userland 516 */ 517 if (error = uiomove((caddr_t)dp, UIO_MX, uio)) 518 break; 519 } 520 521 uio->uio_offset = i * UIO_MX; 522 523 return (error); 524 } 525 526 kernfs_inactive(ap) 527 struct vop_inactive_args /* { 528 struct vnode *a_vp; 529 } */ *ap; 530 { 531 struct vnode *vp = ap->a_vp; 532 533 #ifdef KERNFS_DIAGNOSTIC 534 printf("kernfs_inactive(%x)\n", vp); 535 #endif 536 /* 537 * Clear out the v_type field to avoid 538 * nasty things happening in vgone(). 539 */ 540 vp->v_type = VNON; 541 return (0); 542 } 543 544 kernfs_reclaim(ap) 545 struct vop_reclaim_args /* { 546 struct vnode *a_vp; 547 } */ *ap; 548 { 549 struct vnode *vp = ap->a_vp; 550 551 #ifdef KERNFS_DIAGNOSTIC 552 printf("kernfs_reclaim(%x)\n", vp); 553 #endif 554 if (vp->v_data) { 555 FREE(vp->v_data, M_TEMP); 556 vp->v_data = 0; 557 } 558 return (0); 559 } 560 561 /* 562 * Return POSIX pathconf information applicable to special devices. 563 */ 564 kernfs_pathconf(ap) 565 struct vop_pathconf_args /* { 566 struct vnode *a_vp; 567 int a_name; 568 int *a_retval; 569 } */ *ap; 570 { 571 572 switch (ap->a_name) { 573 case _PC_LINK_MAX: 574 *ap->a_retval = LINK_MAX; 575 return (0); 576 case _PC_MAX_CANON: 577 *ap->a_retval = MAX_CANON; 578 return (0); 579 case _PC_MAX_INPUT: 580 *ap->a_retval = MAX_INPUT; 581 return (0); 582 case _PC_PIPE_BUF: 583 *ap->a_retval = PIPE_BUF; 584 return (0); 585 case _PC_CHOWN_RESTRICTED: 586 *ap->a_retval = 1; 587 return (0); 588 case _PC_VDISABLE: 589 *ap->a_retval = _POSIX_VDISABLE; 590 return (0); 591 default: 592 return (EINVAL); 593 } 594 /* NOTREACHED */ 595 } 596 597 /* 598 * Print out the contents of a /dev/fd vnode. 599 */ 600 /* ARGSUSED */ 601 kernfs_print(ap) 602 struct vop_print_args /* { 603 struct vnode *a_vp; 604 } */ *ap; 605 { 606 607 printf("tag VT_KERNFS, kernfs vnode\n"); 608 return (0); 609 } 610 611 /*void*/ 612 kernfs_vfree(ap) 613 struct vop_vfree_args /* { 614 struct vnode *a_pvp; 615 ino_t a_ino; 616 int a_mode; 617 } */ *ap; 618 { 619 620 return (0); 621 } 622 623 /* 624 * /dev/fd "should never get here" operation 625 */ 626 kernfs_badop() 627 { 628 629 panic("kernfs: bad op"); 630 /* NOTREACHED */ 631 } 632 633 /* 634 * kernfs vnode null operation 635 */ 636 kernfs_nullop() 637 { 638 639 return (0); 640 } 641 642 #define kernfs_create ((int (*) __P((struct vop_create_args *)))eopnotsupp) 643 #define kernfs_mknod ((int (*) __P((struct vop_mknod_args *)))eopnotsupp) 644 #define kernfs_close ((int (*) __P((struct vop_close_args *)))nullop) 645 #define kernfs_ioctl ((int (*) __P((struct vop_ioctl_args *)))eopnotsupp) 646 #define kernfs_select ((int (*) __P((struct vop_select_args *)))eopnotsupp) 647 #define kernfs_revoke vop_revoke 648 #define kernfs_mmap ((int (*) __P((struct vop_mmap_args *)))eopnotsupp) 649 #define kernfs_fsync ((int (*) __P((struct vop_fsync_args *)))nullop) 650 #define kernfs_seek ((int (*) __P((struct vop_seek_args *)))nullop) 651 #define kernfs_remove ((int (*) __P((struct vop_remove_args *)))eopnotsupp) 652 #define kernfs_link ((int (*) __P((struct vop_link_args *)))eopnotsupp) 653 #define kernfs_rename ((int (*) __P((struct vop_rename_args *)))eopnotsupp) 654 #define kernfs_mkdir ((int (*) __P((struct vop_mkdir_args *)))eopnotsupp) 655 #define kernfs_rmdir ((int (*) __P((struct vop_rmdir_args *)))eopnotsupp) 656 #define kernfs_symlink ((int (*) __P((struct vop_symlink_args *)))eopnotsupp) 657 #define kernfs_readlink ((int (*) __P((struct vop_readlink_args *)))eopnotsupp) 658 #define kernfs_abortop ((int (*) __P((struct vop_abortop_args *)))nullop) 659 #define kernfs_lock ((int (*) __P((struct vop_lock_args *)))nullop) 660 #define kernfs_unlock ((int (*) __P((struct vop_unlock_args *)))nullop) 661 #define kernfs_bmap ((int (*) __P((struct vop_bmap_args *)))kernfs_badop) 662 #define kernfs_strategy \ 663 ((int (*) __P((struct vop_strategy_args *)))kernfs_badop) 664 #define kernfs_islocked ((int (*) __P((struct vop_islocked_args *)))nullop) 665 #define kernfs_advlock ((int (*) __P((struct vop_advlock_args *)))eopnotsupp) 666 #define kernfs_blkatoff ((int (*) __P((struct vop_blkatoff_args *)))eopnotsupp) 667 #define kernfs_valloc ((int(*) __P(( \ 668 struct vnode *pvp, \ 669 int mode, \ 670 struct ucred *cred, \ 671 struct vnode **vpp))) eopnotsupp) 672 #define kernfs_truncate ((int (*) __P((struct vop_truncate_args *)))eopnotsupp) 673 #define kernfs_update ((int (*) __P((struct vop_update_args *)))eopnotsupp) 674 #define kernfs_bwrite ((int (*) __P((struct vop_bwrite_args *)))eopnotsupp) 675 676 int (**kernfs_vnodeop_p)(); 677 struct vnodeopv_entry_desc kernfs_vnodeop_entries[] = { 678 { &vop_default_desc, vn_default_error }, 679 { &vop_lookup_desc, kernfs_lookup }, /* lookup */ 680 { &vop_create_desc, kernfs_create }, /* create */ 681 { &vop_mknod_desc, kernfs_mknod }, /* mknod */ 682 { &vop_open_desc, kernfs_open }, /* open */ 683 { &vop_close_desc, kernfs_close }, /* close */ 684 { &vop_access_desc, kernfs_access }, /* access */ 685 { &vop_getattr_desc, kernfs_getattr }, /* getattr */ 686 { &vop_setattr_desc, kernfs_setattr }, /* setattr */ 687 { &vop_read_desc, kernfs_read }, /* read */ 688 { &vop_write_desc, kernfs_write }, /* write */ 689 { &vop_ioctl_desc, kernfs_ioctl }, /* ioctl */ 690 { &vop_select_desc, kernfs_select }, /* select */ 691 { &vop_revoke_desc, kernfs_revoke }, /* revoke */ 692 { &vop_mmap_desc, kernfs_mmap }, /* mmap */ 693 { &vop_fsync_desc, kernfs_fsync }, /* fsync */ 694 { &vop_seek_desc, kernfs_seek }, /* seek */ 695 { &vop_remove_desc, kernfs_remove }, /* remove */ 696 { &vop_link_desc, kernfs_link }, /* link */ 697 { &vop_rename_desc, kernfs_rename }, /* rename */ 698 { &vop_mkdir_desc, kernfs_mkdir }, /* mkdir */ 699 { &vop_rmdir_desc, kernfs_rmdir }, /* rmdir */ 700 { &vop_symlink_desc, kernfs_symlink }, /* symlink */ 701 { &vop_readdir_desc, kernfs_readdir }, /* readdir */ 702 { &vop_readlink_desc, kernfs_readlink },/* readlink */ 703 { &vop_abortop_desc, kernfs_abortop }, /* abortop */ 704 { &vop_inactive_desc, kernfs_inactive },/* inactive */ 705 { &vop_reclaim_desc, kernfs_reclaim }, /* reclaim */ 706 { &vop_lock_desc, kernfs_lock }, /* lock */ 707 { &vop_unlock_desc, kernfs_unlock }, /* unlock */ 708 { &vop_bmap_desc, kernfs_bmap }, /* bmap */ 709 { &vop_strategy_desc, kernfs_strategy },/* strategy */ 710 { &vop_print_desc, kernfs_print }, /* print */ 711 { &vop_islocked_desc, kernfs_islocked },/* islocked */ 712 { &vop_pathconf_desc, kernfs_pathconf },/* pathconf */ 713 { &vop_advlock_desc, kernfs_advlock }, /* advlock */ 714 { &vop_blkatoff_desc, kernfs_blkatoff },/* blkatoff */ 715 { &vop_valloc_desc, kernfs_valloc }, /* valloc */ 716 { &vop_vfree_desc, kernfs_vfree }, /* vfree */ 717 { &vop_truncate_desc, kernfs_truncate },/* truncate */ 718 { &vop_update_desc, kernfs_update }, /* update */ 719 { &vop_bwrite_desc, kernfs_bwrite }, /* bwrite */ 720 { (struct vnodeop_desc*)NULL, (int(*)())NULL } 721 }; 722 struct vnodeopv_desc kernfs_vnodeop_opv_desc = 723 { &kernfs_vnodeop_p, kernfs_vnodeop_entries }; 724