bsd/miscfs/routefs/routefs_ops.c

   1 /*
   2  * Copyright (c) 2015 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #include <sys/param.h>
  30 #include <sys/systm.h>
  31 #include <sys/kernel.h>
  32 #include <sys/vnode_internal.h>
  33 #include <sys/proc.h>
  34 #include <sys/kauth.h>
  35 #include <sys/mount_internal.h>
  36 #include <sys/fcntl.h>
  37 #include <sys/unistd.h>
  38 #include <sys/malloc.h>
  39 #include <vfs/vfs_support.h>
  40
  41 #include <libkern/OSAtomic.h>
  42
  43 #if CONFIG_MACF
  44 #include <security/mac_framework.h>
  45 #endif
  46
  47 #include "routefs.h"
  48
  49 static int routefs_init(__unused struct vfsconf *vfsp);
  50 static int routefs_mount(struct mount *mp, __unused vnode_t devvp, __unused user_addr_t data, vfs_context_t ctx);
  51 static int routefs_start(__unused struct mount *mp, __unused int flags, __unused vfs_context_t ctx);
  52 static int routefs_unmount( struct mount *mp, int mntflags, __unused vfs_context_t ctx);
  53 static int routefs_root(struct mount *mp, struct vnode **vpp, __unused vfs_context_t ctx);
  54 static int routefs_statfs( struct mount *mp, struct vfsstatfs *sbp, __unused vfs_context_t ctx);
  55 static int routefs_vfs_getattr(__unused mount_t mp, struct vfs_attr *fsap, __unused vfs_context_t ctx);
  56 static int routefs_sync(__unused struct mount *mp, __unused int waitfor, __unused vfs_context_t ctx);
  57 static int routefs_vget(__unused struct mount *mp, __unused ino64_t ino, __unused struct vnode **vpp, __unused vfs_context_t ctx);
  58 static int routefs_fhtovp (__unused struct mount *mp, __unused int fhlen, __unused unsigned char *fhp, __unused struct vnode **vpp, __unused vfs_context_t ctx);
  59 static int routefs_vptofh (__unused struct vnode *vp, __unused int *fhlenp, __unused unsigned char *fhp, __unused vfs_context_t ctx);
  60 static int routefs_sysctl(__unused int *name, __unused u_int namelen, __unused user_addr_t oldp,
  61                           __unused size_t *oldlenp, __unused user_addr_t newp,
  62                           __unused size_t newlen, __unused vfs_context_t ctx);
  63 static int routefserr_lookup(__unused struct vnop_lookup_args * args);
  64
  65 static int routefserr_setlabel(__unused struct vnop_setlabel_args * args);
  66
  67
  68 lck_grp_t       * routefs_lck_grp;
  69 lck_grp_attr_t  * routefs_lck_grp_attr;
  70 lck_attr_t      * routefs_lck_attr;
  71 lck_mtx_t         routefs_mutex;
  72
  73 #define ROUTEFS_LOCK()    lck_mtx_lock(&routefs_mutex)
  74 #define ROUTEFS_UNLOCK()  lck_mtx_unlock(&routefs_mutex)
  75 static int _lock_inited = 0;
  76 static boolean_t _fs_alreadyMounted = FALSE;  /* atleast a mount of this filesystem is present */
  77
  78 static int
  79 routefs_init(__unused struct vfsconf *vfsp)
  80 {
  81     routefs_lck_grp_attr = lck_grp_attr_alloc_init();
  82     routefs_lck_grp = lck_grp_alloc_init("routefs_lock", routefs_lck_grp_attr);
  83     routefs_lck_attr = lck_attr_alloc_init();
  84     lck_mtx_init(&routefs_mutex, routefs_lck_grp, routefs_lck_attr);
  85     _lock_inited = 1;
  86
  87     return 0;
  88 }
  89
  90 static int
  91 routefs_mount(struct mount *mp, __unused vnode_t devvp,  user_addr_t data, vfs_context_t ctx)
  92 {
  93     struct routefs_mount *routefs_mp_p = NULL;  /* routefs specific mount info */
  94         int error=EINVAL;
  95     struct routefs_args * rargs = (struct routefs_args *)data;
  96
  97         /*-
  98          *  If they just want to update, we don't need to do anything.
  99          */
 100         if (mp->mnt_flag & MNT_UPDATE)
 101         {
 102                 return 0;
 103         }
 104
 105
 106     /* check for root mount only */
 107     if ((error = proc_suser(current_proc()))!= 0) {
 108         goto out;
 109     }
 110
 111     if (vfs_iskernelmount(mp) == FALSE) {
 112         error = EPERM;
 113         goto out;
 114     }
 115
 116     if (_fs_alreadyMounted == TRUE) {
 117         /* if a filesystem is mounted, it needs to be unmounted prior to mount again */
 118         error = EPERM;
 119         goto out;
 120     }
 121
 122         /* Advisory locking should be handled at the VFS layer */
 123         vfs_setlocklocal(mp);
 124
 125         /*-
 126          *  Well, it's not an update, it's a real mount request.
 127          *  Time to get dirty.
 128          * HERE we should check to see if we are already mounted here.
 129          */
 130
 131         MALLOC(routefs_mp_p, struct routefs_mount *, sizeof(struct routefs_mount),
 132                M_TEMP, M_WAITOK);
 133         if (routefs_mp_p == NULL)
 134                 return (ENOMEM);
 135         bzero(routefs_mp_p, sizeof(*routefs_mp_p));
 136
 137         routefs_mp_p->route_mount = mp;
 138
 139     if (rargs->route_rvp == NULLVP) {
 140         error = EACCES;
 141         goto out;
 142     }
 143
 144     strlcpy(routefs_mp_p->route_path,rargs->route_path, MAXPATHLEN);
 145     routefs_mp_p->route_rvp = rargs->route_rvp;
 146     routefs_mp_p->route_vpvid = vnode_vid(rargs->route_rvp);
 147
 148     if (vnode_ref(routefs_mp_p->route_rvp) != 0) {
 149         error = EACCES;
 150         goto out;
 151     }
 152
 153     /*
 154          *  Fill out some fields
 155          */
 156         __IGNORE_WCASTALIGN(mp->mnt_data = (qaddr_t)routefs_mp_p);
 157         mp->mnt_vfsstat.f_fsid.val[0] = (int32_t)(uintptr_t)routefs_mp_p;
 158         mp->mnt_vfsstat.f_fsid.val[1] = vfs_typenum(mp);
 159         mp->mnt_flag |= MNT_LOCAL;
 160
 161         /*-
 162          *  Copy in the name of the directory the filesystem
 163          *  is to be mounted on.
 164          *  And we clear the remainder of the character strings
 165          *  to be tidy.
 166          */
 167
 168         bzero(mp->mnt_vfsstat.f_mntfromname, MAXPATHLEN);
 169         bcopy("routefs",mp->mnt_vfsstat.f_mntfromname, 5);
 170         (void)routefs_statfs(mp, &mp->mnt_vfsstat, ctx);
 171     _fs_alreadyMounted = TRUE;      /* yep, fs is in play now */
 172         error = 0;
 173 out:
 174     if (error != 0) {
 175         if (routefs_mp_p != NULL)
 176             FREE((caddr_t)routefs_mp_p, M_TEMP);
 177     }
 178         return error;
 179 }
 180
 181
 182 static int
 183 routefs_start(__unused struct mount *mp, __unused int flags, __unused vfs_context_t ctx)
 184 {
 185         return 0;
 186 }
 187
 188 /*-
 189  *  Unmount the filesystem described by mp.
 190  */
 191 static int
 192 routefs_unmount( struct mount *mp, int mntflags, __unused vfs_context_t ctx)
 193 {
 194         struct routefs_mount *routefs_mp_p = (struct routefs_mount *)mp->mnt_data;
 195         int flags = 0;
 196         int force = 0;
 197         int error;
 198
 199     /* check for root unmount only */
 200     if ((error = proc_suser(current_proc()))!= 0) {
 201         return(error);
 202     }
 203
 204         if (mntflags & MNT_FORCE) {
 205                 flags |= FORCECLOSE;
 206                 force = 1;
 207         }
 208     /* giveup the ioref of vnode, no longer need it */
 209     if (routefs_mp_p->route_rvp != NULLVP) {
 210         if (vnode_getwithref(routefs_mp_p->route_rvp) == 0) {
 211             vnode_rele(routefs_mp_p->route_rvp);
 212             vnode_put(routefs_mp_p->route_rvp);
 213             routefs_mp_p->route_rvp = NULLVP;
 214         }
 215     }
 216     /* no vnodes, ignore any errors */
 217     (void)vflush(mp, NULLVP, flags);
 218         FREE((caddr_t)routefs_mp_p, M_TEMP);
 219         mp->mnt_data = (qaddr_t)0;
 220         mp->mnt_flag &= ~MNT_LOCAL;
 221     _fs_alreadyMounted = FALSE; /* unmounted the fs, only one allowed at a time */
 222         return 0;
 223 }
 224
 225 /* return the address of the root vnode  in *vpp */
 226 static int
 227 routefs_root(struct mount *mp, struct vnode **vpp, __unused vfs_context_t ctx)
 228 {
 229         struct routefs_mount *routefs_mp_p = (struct routefs_mount *)(mp->mnt_data);
 230         int error=0;
 231
 232     /* check for nullvp incase its being rolled */
 233     if (routefs_mp_p->route_rvp == NULLVP) {
 234         ROUTEFS_LOCK();
 235         if (routefs_mp_p->route_rvp == NULLVP) {
 236             ROUTEFS_UNLOCK();
 237             error = EACCES;
 238             goto out;
 239         }
 240         ROUTEFS_UNLOCK();
 241     }
 242     if (vnode_getwithvid(routefs_mp_p->route_rvp, routefs_mp_p->route_vpvid) != 0) {
 243         /* only one in the path., since no vnodes with this, you can hold across this call */
 244         ROUTEFS_LOCK();
 245         if (vnode_getwithref(routefs_mp_p->route_rvp) == 0) {
 246             vnode_rele(routefs_mp_p->route_rvp);
 247             vnode_put(routefs_mp_p->route_rvp);
 248             routefs_mp_p->route_rvp = NULLVP;
 249             routefs_mp_p->route_vpvid = -1;
 250             error = vnode_lookup(routefs_mp_p->route_path, FREAD|O_DIRECTORY, &routefs_mp_p->route_rvp, ctx);
 251             if (error == 0)
 252                 routefs_mp_p->route_vpvid = vnode_vid(routefs_mp_p->route_rvp);
 253         } else {
 254             error = EACCES;
 255         }
 256         ROUTEFS_UNLOCK();
 257
 258         if (error != 0)
 259                 goto out;
 260     }
 261     *vpp = routefs_mp_p->route_rvp;
 262 out:
 263         return error;
 264 }
 265
 266 static int
 267 routefs_statfs( struct mount *mp, struct vfsstatfs *sbp, __unused vfs_context_t ctx)
 268 {
 269         struct routefs_mount *routefs_mp_p = (struct routefs_mount *)mp->mnt_data;
 270
 271         /*-
 272          *  Fill in the stat block.
 273          */
 274         //sbp->f_type   = mp->mnt_vfsstat.f_type;
 275         sbp->f_flags  = 0;              /* XXX */
 276         sbp->f_bsize  = 512;
 277         sbp->f_iosize = 512;
 278         sbp->f_blocks = (sizeof(struct routefs_mount)+ sbp->f_bsize) / sbp->f_bsize;
 279         sbp->f_bfree  = 0;
 280         sbp->f_bavail = 0;
 281         sbp->f_files  = 0;
 282         sbp->f_ffree  = 0;
 283         sbp->f_fsid.val[0] = (int32_t)(uintptr_t)routefs_mp_p;
 284         sbp->f_fsid.val[1] = vfs_typenum(mp);
 285
 286         return 0;
 287 }
 288
 289 static int
 290 routefs_vfs_getattr(__unused mount_t mp, struct vfs_attr *fsap, __unused vfs_context_t ctx)
 291 {
 292         VFSATTR_RETURN(fsap, f_objcount, 1);
 293         VFSATTR_RETURN(fsap, f_maxobjcount, 1);
 294         VFSATTR_RETURN(fsap, f_bsize, 512);
 295         VFSATTR_RETURN(fsap, f_iosize, 512);
 296         if (VFSATTR_IS_ACTIVE(fsap, f_blocks) || VFSATTR_IS_ACTIVE(fsap, f_bused)) {
 297                 fsap->f_blocks = (sizeof(struct routefs_mount)+ fsap->f_bsize) / fsap->f_bsize;
 298                 fsap->f_bused = fsap->f_blocks;
 299                 VFSATTR_SET_SUPPORTED(fsap, f_blocks);
 300                 VFSATTR_SET_SUPPORTED(fsap, f_bused);
 301         }
 302         VFSATTR_RETURN(fsap, f_bfree, 0);
 303         VFSATTR_RETURN(fsap, f_bavail, 0);
 304         VFSATTR_RETURN(fsap, f_files, 0);
 305         VFSATTR_RETURN(fsap, f_ffree, 0);
 306         VFSATTR_RETURN(fsap, f_fssubtype, 0);
 307
 308         if (VFSATTR_IS_ACTIVE(fsap, f_capabilities)) {
 309                 fsap->f_capabilities.capabilities[VOL_CAPABILITIES_FORMAT] =
 310                         VOL_CAP_FMT_SYMBOLICLINKS |
 311                         VOL_CAP_FMT_HARDLINKS |
 312                         VOL_CAP_FMT_NO_ROOT_TIMES |
 313                         VOL_CAP_FMT_CASE_SENSITIVE |
 314                         VOL_CAP_FMT_CASE_PRESERVING |
 315                         VOL_CAP_FMT_FAST_STATFS |
 316                         VOL_CAP_FMT_2TB_FILESIZE |
 317                         VOL_CAP_FMT_HIDDEN_FILES;
 318                 fsap->f_capabilities.capabilities[VOL_CAPABILITIES_INTERFACES] =
 319                         VOL_CAP_INT_ATTRLIST ;
 320                 fsap->f_capabilities.capabilities[VOL_CAPABILITIES_RESERVED1] = 0;
 321                 fsap->f_capabilities.capabilities[VOL_CAPABILITIES_RESERVED2] = 0;
 322
 323                 fsap->f_capabilities.valid[VOL_CAPABILITIES_FORMAT] =
 324                         VOL_CAP_FMT_PERSISTENTOBJECTIDS |
 325                         VOL_CAP_FMT_SYMBOLICLINKS |
 326                         VOL_CAP_FMT_HARDLINKS |
 327                         VOL_CAP_FMT_JOURNAL |
 328                         VOL_CAP_FMT_JOURNAL_ACTIVE |
 329                         VOL_CAP_FMT_NO_ROOT_TIMES |
 330                         VOL_CAP_FMT_SPARSE_FILES |
 331                         VOL_CAP_FMT_ZERO_RUNS |
 332                         VOL_CAP_FMT_CASE_SENSITIVE |
 333                         VOL_CAP_FMT_CASE_PRESERVING |
 334                         VOL_CAP_FMT_FAST_STATFS |
 335                         VOL_CAP_FMT_2TB_FILESIZE |
 336                         VOL_CAP_FMT_OPENDENYMODES |
 337                         VOL_CAP_FMT_HIDDEN_FILES |
 338                         VOL_CAP_FMT_PATH_FROM_ID |
 339                         VOL_CAP_FMT_NO_VOLUME_SIZES;
 340                 fsap->f_capabilities.valid[VOL_CAPABILITIES_INTERFACES] =
 341                         VOL_CAP_INT_SEARCHFS |
 342                         VOL_CAP_INT_ATTRLIST |
 343                         VOL_CAP_INT_NFSEXPORT |
 344                         VOL_CAP_INT_READDIRATTR |
 345                         VOL_CAP_INT_EXCHANGEDATA |
 346                         VOL_CAP_INT_COPYFILE |
 347                         VOL_CAP_INT_ALLOCATE |
 348                         VOL_CAP_INT_VOL_RENAME |
 349                         VOL_CAP_INT_ADVLOCK |
 350                         VOL_CAP_INT_FLOCK |
 351                         VOL_CAP_INT_EXTENDED_SECURITY |
 352                         VOL_CAP_INT_USERACCESS |
 353                         VOL_CAP_INT_MANLOCK |
 354                         VOL_CAP_INT_EXTENDED_ATTR |
 355                         VOL_CAP_INT_NAMEDSTREAMS;
 356                 fsap->f_capabilities.valid[VOL_CAPABILITIES_RESERVED1] = 0;
 357                 fsap->f_capabilities.valid[VOL_CAPABILITIES_RESERVED2] = 0;
 358
 359                 VFSATTR_SET_SUPPORTED(fsap, f_capabilities);
 360         }
 361
 362         if (VFSATTR_IS_ACTIVE(fsap, f_attributes)) {
 363                 fsap->f_attributes.validattr.commonattr =
 364                         ATTR_CMN_NAME | ATTR_CMN_DEVID | ATTR_CMN_FSID |
 365                         ATTR_CMN_OBJTYPE | ATTR_CMN_OBJTAG | ATTR_CMN_OBJID |
 366                         ATTR_CMN_PAROBJID |
 367                         ATTR_CMN_MODTIME | ATTR_CMN_CHGTIME | ATTR_CMN_ACCTIME |
 368                         ATTR_CMN_OWNERID | ATTR_CMN_GRPID | ATTR_CMN_ACCESSMASK |
 369                         ATTR_CMN_FLAGS | ATTR_CMN_USERACCESS | ATTR_CMN_FILEID;
 370                 fsap->f_attributes.validattr.volattr =
 371                         ATTR_VOL_FSTYPE | ATTR_VOL_SIZE | ATTR_VOL_SPACEFREE |
 372                         ATTR_VOL_SPACEAVAIL | ATTR_VOL_MINALLOCATION |
 373                         ATTR_VOL_OBJCOUNT | ATTR_VOL_MAXOBJCOUNT |
 374                         ATTR_VOL_MOUNTPOINT | ATTR_VOL_MOUNTFLAGS |
 375                         ATTR_VOL_MOUNTEDDEVICE | ATTR_VOL_CAPABILITIES |
 376                         ATTR_VOL_ATTRIBUTES;
 377                 fsap->f_attributes.validattr.dirattr =
 378                         ATTR_DIR_LINKCOUNT | ATTR_DIR_MOUNTSTATUS;
 379                 fsap->f_attributes.validattr.fileattr =
 380                         ATTR_FILE_LINKCOUNT | ATTR_FILE_TOTALSIZE |
 381                         ATTR_FILE_IOBLOCKSIZE | ATTR_FILE_DEVTYPE |
 382                         ATTR_FILE_DATALENGTH;
 383                 fsap->f_attributes.validattr.forkattr = 0;
 384
 385                 fsap->f_attributes.nativeattr.commonattr =
 386                         ATTR_CMN_NAME | ATTR_CMN_DEVID | ATTR_CMN_FSID |
 387                         ATTR_CMN_OBJTYPE | ATTR_CMN_OBJTAG | ATTR_CMN_OBJID |
 388                         ATTR_CMN_PAROBJID |
 389                         ATTR_CMN_MODTIME | ATTR_CMN_CHGTIME | ATTR_CMN_ACCTIME |
 390                         ATTR_CMN_OWNERID | ATTR_CMN_GRPID | ATTR_CMN_ACCESSMASK |
 391                         ATTR_CMN_FLAGS | ATTR_CMN_USERACCESS | ATTR_CMN_FILEID;
 392                 fsap->f_attributes.nativeattr.volattr =
 393                         ATTR_VOL_FSTYPE | ATTR_VOL_SIZE | ATTR_VOL_SPACEFREE |
 394                         ATTR_VOL_SPACEAVAIL | ATTR_VOL_MINALLOCATION |
 395                         ATTR_VOL_OBJCOUNT | ATTR_VOL_MAXOBJCOUNT |
 396                         ATTR_VOL_MOUNTPOINT | ATTR_VOL_MOUNTFLAGS |
 397                         ATTR_VOL_MOUNTEDDEVICE | ATTR_VOL_CAPABILITIES |
 398                         ATTR_VOL_ATTRIBUTES;
 399                 fsap->f_attributes.nativeattr.dirattr =
 400                         ATTR_DIR_MOUNTSTATUS;
 401                 fsap->f_attributes.nativeattr.fileattr =
 402                         ATTR_FILE_LINKCOUNT | ATTR_FILE_TOTALSIZE |
 403                         ATTR_FILE_IOBLOCKSIZE | ATTR_FILE_DEVTYPE |
 404                         ATTR_FILE_DATALENGTH;
 405                 fsap->f_attributes.nativeattr.forkattr = 0;
 406
 407                 VFSATTR_SET_SUPPORTED(fsap, f_attributes);
 408         }
 409
 410         return 0;
 411 }
 412
 413 static int
 414 routefs_sync(__unused struct mount *mp, __unused int waitfor, __unused vfs_context_t ctx)
 415 {
 416     return (0);
 417 }
 418
 419
 420 static int
 421 routefs_vget(__unused struct mount *mp, __unused ino64_t ino, __unused struct vnode **vpp, __unused vfs_context_t ctx)
 422 {
 423         return ENOTSUP;
 424 }
 425
 426 static int
 427 routefs_fhtovp (__unused struct mount *mp, __unused int fhlen, __unused unsigned char *fhp, __unused struct vnode **vpp, __unused vfs_context_t ctx)
 428 {
 429         return (EINVAL);
 430 }
 431
 432
 433 static int
 434 routefs_vptofh (__unused struct vnode *vp, __unused int *fhlenp, __unused unsigned char *fhp, __unused vfs_context_t ctx)
 435 {
 436         return (EINVAL);
 437 }
 438
 439 static int
 440 routefs_sysctl(__unused int *name, __unused u_int namelen, __unused user_addr_t oldp,
 441              __unused size_t *oldlenp, __unused user_addr_t newp,
 442              __unused size_t newlen, __unused vfs_context_t ctx)
 443 {
 444     return (ENOTSUP);
 445 }
 446
 447 #include <sys/namei.h>
 448 #define MOBILE_DIR_PATH "/private/var/mobile"
 449 /*
 450  * Function: routefs_kernel_mount
 451  * Purpose:
 452  *   Mount routefs at the given mount point from within the kernel.
 453  */
 454 int
 455 routefs_kernel_mount(char * routepath)
 456 {
 457     int error = EINVAL;
 458         vfs_context_t ctx = vfs_context_kernel();
 459         char fsname[] = "routefs";
 460     struct routefs_args args;
 461     char mounthere[] = MOBILE_DIR_PATH;  /* !const because of internal casting */
 462
 463     bzero(&args, sizeof(struct routefs_args));
 464     strlcpy(args.route_path, routepath, MAXPATHLEN);
 465     error = vnode_lookup(args.route_path, FREAD|O_DIRECTORY, &args.route_rvp, ctx);
 466     if (error) {
 467         goto out;
 468         }
 469
 470     if (!vnode_isdir(args.route_rvp)) {
 471         error = EACCES;
 472         goto out;
 473     }
 474
 475     error = kernel_mount(fsname, NULLVP, NULLVP, mounthere, &args, 0, MNT_DONTBROWSE, KERNEL_MOUNT_NOAUTH, ctx);
 476         if (error) {
 477                 goto out;
 478         }
 479
 480 out:
 481     if(args.route_rvp != NULLVP)
 482         (void) vnode_put(args.route_rvp);
 483         return (error);
 484 }
 485
 486 struct vfsops routefs_vfsops = {
 487         .vfs_mount = routefs_mount,
 488         .vfs_start = routefs_start,
 489         .vfs_unmount = routefs_unmount,
 490         .vfs_root = routefs_root,
 491         .vfs_getattr = routefs_vfs_getattr,
 492         .vfs_sync = routefs_sync,
 493         .vfs_vget = routefs_vget,
 494         .vfs_fhtovp = routefs_fhtovp,
 495         .vfs_vptofh = routefs_vptofh,
 496         .vfs_init = routefs_init,
 497         .vfs_sysctl = routefs_sysctl,
 498         // There are other VFS ops that we do not support
 499 };
 500
 501 static int routefserr_lookup(__unused struct vnop_lookup_args * args)
 502 {
 503     return (ENOTSUP);
 504 }
 505
 506 static int routefserr_setlabel(__unused struct vnop_setlabel_args * args)
 507 {
 508     return (ENOTSUP);
 509
 510 }
 511
 512 #define VOPFUNC int (*)(void *)
 513
 514 /* The following ops are used by directories and symlinks */
 515 int (**routefs_vnodeop_p)(void *);
 516 static struct vnodeopv_entry_desc routefs_vnodeop_entries[] = {
 517     { &vnop_default_desc, (VOPFUNC)vn_default_error },
 518     { &vnop_lookup_desc, (VOPFUNC)routefserr_lookup },          /* lookup */
 519     { &vnop_create_desc, (VOPFUNC)err_create },         /* create */
 520     { &vnop_whiteout_desc, (VOPFUNC)err_whiteout },             /* whiteout */
 521     { &vnop_mknod_desc, (VOPFUNC)err_mknod },           /* mknod */
 522     { &vnop_open_desc, (VOPFUNC)err_open },                     /* open */
 523     { &vnop_close_desc, (VOPFUNC)err_close },           /* close */
 524     { &vnop_getattr_desc, (VOPFUNC)err_getattr },               /* getattr */
 525     { &vnop_setattr_desc, (VOPFUNC)err_setattr },               /* setattr */
 526     { &vnop_read_desc, (VOPFUNC)err_read },             /* read */
 527     { &vnop_write_desc, (VOPFUNC)err_write },           /* write */
 528     { &vnop_ioctl_desc, (VOPFUNC)err_ioctl },           /* ioctl */
 529     { &vnop_select_desc, (VOPFUNC)err_select },         /* select */
 530     { &vnop_revoke_desc, (VOPFUNC)err_revoke },         /* revoke */
 531     { &vnop_mmap_desc, (VOPFUNC)err_mmap },                     /* mmap */
 532     { &vnop_fsync_desc, (VOPFUNC)nop_fsync },           /* fsync */
 533     { &vnop_remove_desc, (VOPFUNC)err_remove }, /* remove */
 534     { &vnop_link_desc, (VOPFUNC)err_link },             /* link */
 535     { &vnop_rename_desc, (VOPFUNC)err_rename },         /* rename */
 536     { &vnop_mkdir_desc, (VOPFUNC)err_mkdir },           /* mkdir */
 537     { &vnop_rmdir_desc, (VOPFUNC)err_rmdir },           /* rmdir */
 538     { &vnop_symlink_desc, (VOPFUNC)err_symlink },               /* symlink */
 539     { &vnop_readdir_desc, (VOPFUNC)err_readdir },               /* readdir */
 540     { &vnop_readlink_desc, (VOPFUNC)err_readlink },     /* readlink */
 541     { &vnop_inactive_desc, (VOPFUNC)err_inactive },     /* inactive */
 542     { &vnop_reclaim_desc, (VOPFUNC)err_reclaim },               /* reclaim */
 543     { &vnop_strategy_desc, (VOPFUNC)err_strategy },             /* strategy */
 544     { &vnop_pathconf_desc, (VOPFUNC)err_pathconf },     /* pathconf */
 545     { &vnop_advlock_desc, (VOPFUNC)err_advlock },               /* advlock */
 546     { &vnop_bwrite_desc, (VOPFUNC)err_bwrite },
 547     { &vnop_pagein_desc, (VOPFUNC)err_pagein },         /* Pagein */
 548     { &vnop_pageout_desc, (VOPFUNC)err_pageout },               /* Pageout */
 549     { &vnop_copyfile_desc, (VOPFUNC)err_copyfile },             /* Copyfile */
 550     { &vnop_blktooff_desc, (VOPFUNC)err_blktooff },             /* blktooff */
 551     { &vnop_offtoblk_desc, (VOPFUNC)err_offtoblk },             /* offtoblk */
 552     { &vnop_blockmap_desc, (VOPFUNC)err_blockmap },             /* blockmap */
 553 #if CONFIG_MACF
 554     { &vnop_setlabel_desc, (VOPFUNC)routefserr_setlabel },       /* setlabel */
 555 #endif
 556     { (struct vnodeop_desc*)NULL, (int(*)())NULL }
 557 };
 558 struct vnodeopv_desc routefs_vnodeop_opv_desc =
 559 { &routefs_vnodeop_p, routefs_vnodeop_entries };
 560
 561
 562