| 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 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 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 the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. All advertising materials mentioning features or use of this software |
| 17 | * must display the following acknowledgement: |
| 18 | * This product includes software developed by the University of |
| 19 | * California, Berkeley and its contributors. |
| 20 | * 4. Neither the name of the University nor the names of its contributors |
| 21 | * may be used to endorse or promote products derived from this software |
| 22 | * without specific prior written permission. |
| 23 | * |
| 24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 34 | * SUCH DAMAGE. |
| 35 | * |
| 36 | * @(#)portal_vnops.c 8.14 (Berkeley) 5/21/95 |
| 37 | * |
| 38 | * $FreeBSD: src/sys/miscfs/portal/portal_vnops.c,v 1.38 1999/12/21 06:29:00 chris Exp $ |
| 39 | * $DragonFly: src/sys/vfs/portal/portal_vnops.c,v 1.4 2003/06/25 03:56:00 dillon Exp $ |
| 40 | */ |
| 41 | |
| 42 | /* |
| 43 | * Portal Filesystem |
| 44 | */ |
| 45 | |
| 46 | #include <sys/param.h> |
| 47 | #include <sys/systm.h> |
| 48 | #include <sys/sysproto.h> |
| 49 | #include <sys/kernel.h> |
| 50 | #include <sys/time.h> |
| 51 | #include <sys/proc.h> |
| 52 | #include <sys/filedesc.h> |
| 53 | #include <sys/vnode.h> |
| 54 | #include <sys/fcntl.h> |
| 55 | #include <sys/file.h> |
| 56 | #include <sys/stat.h> |
| 57 | #include <sys/mount.h> |
| 58 | #include <sys/malloc.h> |
| 59 | #include <sys/namei.h> |
| 60 | #include <sys/mbuf.h> |
| 61 | #include <sys/socket.h> |
| 62 | #include <sys/socketvar.h> |
| 63 | #include <sys/un.h> |
| 64 | #include <sys/unpcb.h> |
| 65 | #include <miscfs/portal/portal.h> |
| 66 | |
| 67 | static int portal_fileid = PORTAL_ROOTFILEID+1; |
| 68 | |
| 69 | static int portal_badop __P((void)); |
| 70 | static void portal_closefd __P((struct thread *td, int fd)); |
| 71 | static int portal_connect __P((struct socket *so, struct socket *so2)); |
| 72 | static int portal_getattr __P((struct vop_getattr_args *ap)); |
| 73 | static int portal_inactive __P((struct vop_inactive_args *ap)); |
| 74 | static int portal_lookup __P((struct vop_lookup_args *ap)); |
| 75 | static int portal_open __P((struct vop_open_args *ap)); |
| 76 | static int portal_print __P((struct vop_print_args *ap)); |
| 77 | static int portal_readdir __P((struct vop_readdir_args *ap)); |
| 78 | static int portal_reclaim __P((struct vop_reclaim_args *ap)); |
| 79 | static int portal_setattr __P((struct vop_setattr_args *ap)); |
| 80 | |
| 81 | static void |
| 82 | portal_closefd(td, fd) |
| 83 | struct thread *td; |
| 84 | int fd; |
| 85 | { |
| 86 | int error; |
| 87 | struct close_args ua; |
| 88 | |
| 89 | ua.fd = fd; |
| 90 | error = close(&ua); |
| 91 | /* |
| 92 | * We should never get an error, and there isn't anything |
| 93 | * we could do if we got one, so just print a message. |
| 94 | */ |
| 95 | if (error) |
| 96 | printf("portal_closefd: error = %d\n", error); |
| 97 | } |
| 98 | |
| 99 | /* |
| 100 | * vp is the current namei directory |
| 101 | * cnp is the name to locate in that directory... |
| 102 | */ |
| 103 | static int |
| 104 | portal_lookup(ap) |
| 105 | struct vop_lookup_args /* { |
| 106 | struct vnode * a_dvp; |
| 107 | struct vnode ** a_vpp; |
| 108 | struct componentname * a_cnp; |
| 109 | } */ *ap; |
| 110 | { |
| 111 | struct componentname *cnp = ap->a_cnp; |
| 112 | struct vnode **vpp = ap->a_vpp; |
| 113 | struct vnode *dvp = ap->a_dvp; |
| 114 | char *pname = cnp->cn_nameptr; |
| 115 | struct portalnode *pt; |
| 116 | int error; |
| 117 | struct vnode *fvp = 0; |
| 118 | char *path; |
| 119 | int size; |
| 120 | |
| 121 | *vpp = NULLVP; |
| 122 | |
| 123 | if (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME) |
| 124 | return (EROFS); |
| 125 | |
| 126 | if (cnp->cn_namelen == 1 && *pname == '.') { |
| 127 | *vpp = dvp; |
| 128 | VREF(dvp); |
| 129 | /*VOP_LOCK(dvp);*/ |
| 130 | return (0); |
| 131 | } |
| 132 | |
| 133 | /* |
| 134 | * Do the MALLOC before the getnewvnode since doing so afterward |
| 135 | * might cause a bogus v_data pointer to get dereferenced |
| 136 | * elsewhere if MALLOC should block. |
| 137 | */ |
| 138 | MALLOC(pt, struct portalnode *, sizeof(struct portalnode), |
| 139 | M_TEMP, M_WAITOK); |
| 140 | |
| 141 | error = getnewvnode(VT_PORTAL, dvp->v_mount, portal_vnodeop_p, &fvp); |
| 142 | if (error) { |
| 143 | FREE(pt, M_TEMP); |
| 144 | goto bad; |
| 145 | } |
| 146 | fvp->v_type = VREG; |
| 147 | fvp->v_data = pt; |
| 148 | /* |
| 149 | * Save all of the remaining pathname and |
| 150 | * advance the namei next pointer to the end |
| 151 | * of the string. |
| 152 | */ |
| 153 | for (size = 0, path = pname; *path; path++) |
| 154 | size++; |
| 155 | cnp->cn_consume = size - cnp->cn_namelen; |
| 156 | |
| 157 | pt->pt_arg = malloc(size+1, M_TEMP, M_WAITOK); |
| 158 | pt->pt_size = size+1; |
| 159 | bcopy(pname, pt->pt_arg, pt->pt_size); |
| 160 | pt->pt_fileid = portal_fileid++; |
| 161 | |
| 162 | *vpp = fvp; |
| 163 | /*VOP_LOCK(fvp);*/ |
| 164 | return (0); |
| 165 | |
| 166 | bad:; |
| 167 | if (fvp) |
| 168 | vrele(fvp); |
| 169 | return (error); |
| 170 | } |
| 171 | |
| 172 | static int |
| 173 | portal_connect(so, so2) |
| 174 | struct socket *so; |
| 175 | struct socket *so2; |
| 176 | { |
| 177 | /* from unp_connect, bypassing the namei stuff... */ |
| 178 | struct socket *so3; |
| 179 | struct unpcb *unp2; |
| 180 | struct unpcb *unp3; |
| 181 | |
| 182 | if (so2 == 0) |
| 183 | return (ECONNREFUSED); |
| 184 | |
| 185 | if (so->so_type != so2->so_type) |
| 186 | return (EPROTOTYPE); |
| 187 | |
| 188 | if ((so2->so_options & SO_ACCEPTCONN) == 0) |
| 189 | return (ECONNREFUSED); |
| 190 | |
| 191 | if ((so3 = sonewconn(so2, 0)) == 0) |
| 192 | return (ECONNREFUSED); |
| 193 | |
| 194 | unp2 = sotounpcb(so2); |
| 195 | unp3 = sotounpcb(so3); |
| 196 | if (unp2->unp_addr) |
| 197 | unp3->unp_addr = (struct sockaddr_un *) |
| 198 | dup_sockaddr((struct sockaddr *)unp2->unp_addr, 0); |
| 199 | so2 = so3; |
| 200 | |
| 201 | return (unp_connect2(so, so2)); |
| 202 | } |
| 203 | |
| 204 | static int |
| 205 | portal_open(ap) |
| 206 | struct vop_open_args /* { |
| 207 | struct vnode *a_vp; |
| 208 | int a_mode; |
| 209 | struct ucred *a_cred; |
| 210 | struct thread *a_td; |
| 211 | } */ *ap; |
| 212 | { |
| 213 | struct socket *so = 0; |
| 214 | struct portalnode *pt; |
| 215 | struct thread *td = ap->a_td; |
| 216 | struct vnode *vp = ap->a_vp; |
| 217 | int s; |
| 218 | struct uio auio; |
| 219 | struct iovec aiov[2]; |
| 220 | int res; |
| 221 | struct mbuf *cm = 0; |
| 222 | struct cmsghdr *cmsg; |
| 223 | int newfds; |
| 224 | int *ip; |
| 225 | int fd; |
| 226 | int error; |
| 227 | int len; |
| 228 | struct portalmount *fmp; |
| 229 | struct file *fp; |
| 230 | struct portal_cred pcred; |
| 231 | |
| 232 | /* |
| 233 | * Nothing to do when opening the root node. |
| 234 | */ |
| 235 | if (vp->v_flag & VROOT) |
| 236 | return (0); |
| 237 | |
| 238 | /* |
| 239 | * Can't be opened unless the caller is set up |
| 240 | * to deal with the side effects. Check for this |
| 241 | * by testing whether the p_dupfd has been set. |
| 242 | */ |
| 243 | KKASSERT(td->td_proc); |
| 244 | if (td->td_proc->p_dupfd >= 0) |
| 245 | return (ENODEV); |
| 246 | |
| 247 | pt = VTOPORTAL(vp); |
| 248 | fmp = VFSTOPORTAL(vp->v_mount); |
| 249 | |
| 250 | /* |
| 251 | * Create a new socket. |
| 252 | */ |
| 253 | error = socreate(AF_UNIX, &so, SOCK_STREAM, 0, ap->a_td); |
| 254 | if (error) |
| 255 | goto bad; |
| 256 | |
| 257 | /* |
| 258 | * Reserve some buffer space |
| 259 | */ |
| 260 | res = pt->pt_size + sizeof(pcred) + 512; /* XXX */ |
| 261 | error = soreserve(so, res, res); |
| 262 | if (error) |
| 263 | goto bad; |
| 264 | |
| 265 | /* |
| 266 | * Kick off connection |
| 267 | */ |
| 268 | error = portal_connect(so, (struct socket *)fmp->pm_server->f_data); |
| 269 | if (error) |
| 270 | goto bad; |
| 271 | |
| 272 | /* |
| 273 | * Wait for connection to complete |
| 274 | */ |
| 275 | /* |
| 276 | * XXX: Since the mount point is holding a reference on the |
| 277 | * underlying server socket, it is not easy to find out whether |
| 278 | * the server process is still running. To handle this problem |
| 279 | * we loop waiting for the new socket to be connected (something |
| 280 | * which will only happen if the server is still running) or for |
| 281 | * the reference count on the server socket to drop to 1, which |
| 282 | * will happen if the server dies. Sleep for 5 second intervals |
| 283 | * and keep polling the reference count. XXX. |
| 284 | */ |
| 285 | s = splnet(); |
| 286 | while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) { |
| 287 | if (fmp->pm_server->f_count == 1) { |
| 288 | error = ECONNREFUSED; |
| 289 | splx(s); |
| 290 | goto bad; |
| 291 | } |
| 292 | (void) tsleep((caddr_t) &so->so_timeo, PSOCK, "portalcon", 5 * hz); |
| 293 | } |
| 294 | splx(s); |
| 295 | |
| 296 | if (so->so_error) { |
| 297 | error = so->so_error; |
| 298 | goto bad; |
| 299 | } |
| 300 | |
| 301 | /* |
| 302 | * Set miscellaneous flags |
| 303 | */ |
| 304 | so->so_rcv.sb_timeo = 0; |
| 305 | so->so_snd.sb_timeo = 0; |
| 306 | so->so_rcv.sb_flags |= SB_NOINTR; |
| 307 | so->so_snd.sb_flags |= SB_NOINTR; |
| 308 | |
| 309 | |
| 310 | pcred.pcr_flag = ap->a_mode; |
| 311 | pcred.pcr_uid = ap->a_cred->cr_uid; |
| 312 | pcred.pcr_ngroups = ap->a_cred->cr_ngroups; |
| 313 | bcopy(ap->a_cred->cr_groups, pcred.pcr_groups, NGROUPS * sizeof(gid_t)); |
| 314 | aiov[0].iov_base = (caddr_t) &pcred; |
| 315 | aiov[0].iov_len = sizeof(pcred); |
| 316 | aiov[1].iov_base = pt->pt_arg; |
| 317 | aiov[1].iov_len = pt->pt_size; |
| 318 | auio.uio_iov = aiov; |
| 319 | auio.uio_iovcnt = 2; |
| 320 | auio.uio_rw = UIO_WRITE; |
| 321 | auio.uio_segflg = UIO_SYSSPACE; |
| 322 | auio.uio_td = td; |
| 323 | auio.uio_offset = 0; |
| 324 | auio.uio_resid = aiov[0].iov_len + aiov[1].iov_len; |
| 325 | |
| 326 | error = sosend(so, (struct sockaddr *) 0, &auio, |
| 327 | (struct mbuf *) 0, (struct mbuf *) 0, 0, td); |
| 328 | if (error) |
| 329 | goto bad; |
| 330 | |
| 331 | len = auio.uio_resid = sizeof(int); |
| 332 | do { |
| 333 | struct mbuf *m = 0; |
| 334 | int flags = MSG_WAITALL; |
| 335 | error = soreceive(so, (struct sockaddr **) 0, &auio, |
| 336 | &m, &cm, &flags); |
| 337 | if (error) |
| 338 | goto bad; |
| 339 | |
| 340 | /* |
| 341 | * Grab an error code from the mbuf. |
| 342 | */ |
| 343 | if (m) { |
| 344 | m = m_pullup(m, sizeof(int)); /* Needed? */ |
| 345 | if (m) { |
| 346 | error = *(mtod(m, int *)); |
| 347 | m_freem(m); |
| 348 | } else { |
| 349 | error = EINVAL; |
| 350 | } |
| 351 | } else { |
| 352 | if (cm == 0) { |
| 353 | error = ECONNRESET; /* XXX */ |
| 354 | #ifdef notdef |
| 355 | break; |
| 356 | #endif |
| 357 | } |
| 358 | } |
| 359 | } while (cm == 0 && auio.uio_resid == len && !error); |
| 360 | |
| 361 | if (cm == 0) |
| 362 | goto bad; |
| 363 | |
| 364 | if (auio.uio_resid) { |
| 365 | error = 0; |
| 366 | #ifdef notdef |
| 367 | error = EMSGSIZE; |
| 368 | goto bad; |
| 369 | #endif |
| 370 | } |
| 371 | |
| 372 | /* |
| 373 | * XXX: Break apart the control message, and retrieve the |
| 374 | * received file descriptor. Note that more than one descriptor |
| 375 | * may have been received, or that the rights chain may have more |
| 376 | * than a single mbuf in it. What to do? |
| 377 | */ |
| 378 | cmsg = mtod(cm, struct cmsghdr *); |
| 379 | newfds = (cmsg->cmsg_len - sizeof(*cmsg)) / sizeof (int); |
| 380 | if (newfds == 0) { |
| 381 | error = ECONNREFUSED; |
| 382 | goto bad; |
| 383 | } |
| 384 | /* |
| 385 | * At this point the rights message consists of a control message |
| 386 | * header, followed by a data region containing a vector of |
| 387 | * integer file descriptors. The fds were allocated by the action |
| 388 | * of receiving the control message. |
| 389 | */ |
| 390 | ip = (int *) (cmsg + 1); |
| 391 | fd = *ip++; |
| 392 | if (newfds > 1) { |
| 393 | /* |
| 394 | * Close extra fds. |
| 395 | */ |
| 396 | int i; |
| 397 | printf("portal_open: %d extra fds\n", newfds - 1); |
| 398 | for (i = 1; i < newfds; i++) { |
| 399 | portal_closefd(td, *ip); |
| 400 | ip++; |
| 401 | } |
| 402 | } |
| 403 | |
| 404 | /* |
| 405 | * Check that the mode the file is being opened for is a subset |
| 406 | * of the mode of the existing descriptor. |
| 407 | */ |
| 408 | KKASSERT(td->td_proc); |
| 409 | fp = td->td_proc->p_fd->fd_ofiles[fd]; |
| 410 | if (((ap->a_mode & (FREAD|FWRITE)) | fp->f_flag) != fp->f_flag) { |
| 411 | portal_closefd(td, fd); |
| 412 | error = EACCES; |
| 413 | goto bad; |
| 414 | } |
| 415 | |
| 416 | /* |
| 417 | * Save the dup fd in the proc structure then return the |
| 418 | * special error code (ENXIO) which causes magic things to |
| 419 | * happen in vn_open. The whole concept is, well, hmmm. |
| 420 | */ |
| 421 | td->td_proc->p_dupfd = fd; |
| 422 | error = ENXIO; |
| 423 | |
| 424 | bad:; |
| 425 | /* |
| 426 | * And discard the control message. |
| 427 | */ |
| 428 | if (cm) { |
| 429 | m_freem(cm); |
| 430 | } |
| 431 | |
| 432 | if (so) { |
| 433 | soshutdown(so, 2); |
| 434 | soclose(so); |
| 435 | } |
| 436 | return (error); |
| 437 | } |
| 438 | |
| 439 | static int |
| 440 | portal_getattr(ap) |
| 441 | struct vop_getattr_args /* { |
| 442 | struct vnode *a_vp; |
| 443 | struct vattr *a_vap; |
| 444 | struct ucred *a_cred; |
| 445 | struct thread *a_td; |
| 446 | } */ *ap; |
| 447 | { |
| 448 | struct vnode *vp = ap->a_vp; |
| 449 | struct vattr *vap = ap->a_vap; |
| 450 | |
| 451 | bzero(vap, sizeof(*vap)); |
| 452 | vattr_null(vap); |
| 453 | vap->va_uid = 0; |
| 454 | vap->va_gid = 0; |
| 455 | vap->va_size = DEV_BSIZE; |
| 456 | vap->va_blocksize = DEV_BSIZE; |
| 457 | nanotime(&vap->va_atime); |
| 458 | vap->va_mtime = vap->va_atime; |
| 459 | vap->va_ctime = vap->va_mtime; |
| 460 | vap->va_gen = 0; |
| 461 | vap->va_flags = 0; |
| 462 | vap->va_rdev = 0; |
| 463 | /* vap->va_qbytes = 0; */ |
| 464 | vap->va_bytes = 0; |
| 465 | /* vap->va_qsize = 0; */ |
| 466 | if (vp->v_flag & VROOT) { |
| 467 | vap->va_type = VDIR; |
| 468 | vap->va_mode = S_IRUSR|S_IWUSR|S_IXUSR| |
| 469 | S_IRGRP|S_IWGRP|S_IXGRP| |
| 470 | S_IROTH|S_IWOTH|S_IXOTH; |
| 471 | vap->va_nlink = 2; |
| 472 | vap->va_fileid = 2; |
| 473 | } else { |
| 474 | vap->va_type = VREG; |
| 475 | vap->va_mode = S_IRUSR|S_IWUSR| |
| 476 | S_IRGRP|S_IWGRP| |
| 477 | S_IROTH|S_IWOTH; |
| 478 | vap->va_nlink = 1; |
| 479 | vap->va_fileid = VTOPORTAL(vp)->pt_fileid; |
| 480 | } |
| 481 | return (0); |
| 482 | } |
| 483 | |
| 484 | static int |
| 485 | portal_setattr(ap) |
| 486 | struct vop_setattr_args /* { |
| 487 | struct vnode *a_vp; |
| 488 | struct vattr *a_vap; |
| 489 | struct ucred *a_cred; |
| 490 | struct thread *a_td; |
| 491 | } */ *ap; |
| 492 | { |
| 493 | |
| 494 | /* |
| 495 | * Can't mess with the root vnode |
| 496 | */ |
| 497 | if (ap->a_vp->v_flag & VROOT) |
| 498 | return (EACCES); |
| 499 | |
| 500 | if (ap->a_vap->va_flags != VNOVAL) |
| 501 | return (EOPNOTSUPP); |
| 502 | |
| 503 | return (0); |
| 504 | } |
| 505 | |
| 506 | /* |
| 507 | * Fake readdir, just return empty directory. |
| 508 | * It is hard to deal with '.' and '..' so don't bother. |
| 509 | */ |
| 510 | static int |
| 511 | portal_readdir(ap) |
| 512 | struct vop_readdir_args /* { |
| 513 | struct vnode *a_vp; |
| 514 | struct uio *a_uio; |
| 515 | struct ucred *a_cred; |
| 516 | int *a_eofflag; |
| 517 | u_long *a_cookies; |
| 518 | int a_ncookies; |
| 519 | } */ *ap; |
| 520 | { |
| 521 | |
| 522 | /* |
| 523 | * We don't allow exporting portal mounts, and currently local |
| 524 | * requests do not need cookies. |
| 525 | */ |
| 526 | if (ap->a_ncookies) |
| 527 | panic("portal_readdir: not hungry"); |
| 528 | |
| 529 | return (0); |
| 530 | } |
| 531 | |
| 532 | static int |
| 533 | portal_inactive(ap) |
| 534 | struct vop_inactive_args /* { |
| 535 | struct vnode *a_vp; |
| 536 | struct thread *a_td; |
| 537 | } */ *ap; |
| 538 | { |
| 539 | |
| 540 | VOP_UNLOCK(ap->a_vp, 0, ap->a_td); |
| 541 | return (0); |
| 542 | } |
| 543 | |
| 544 | static int |
| 545 | portal_reclaim(ap) |
| 546 | struct vop_reclaim_args /* { |
| 547 | struct vnode *a_vp; |
| 548 | } */ *ap; |
| 549 | { |
| 550 | struct portalnode *pt = VTOPORTAL(ap->a_vp); |
| 551 | |
| 552 | if (pt->pt_arg) { |
| 553 | free((caddr_t) pt->pt_arg, M_TEMP); |
| 554 | pt->pt_arg = 0; |
| 555 | } |
| 556 | FREE(ap->a_vp->v_data, M_TEMP); |
| 557 | ap->a_vp->v_data = 0; |
| 558 | |
| 559 | return (0); |
| 560 | } |
| 561 | |
| 562 | |
| 563 | /* |
| 564 | * Print out the contents of a Portal vnode. |
| 565 | */ |
| 566 | /* ARGSUSED */ |
| 567 | static int |
| 568 | portal_print(ap) |
| 569 | struct vop_print_args /* { |
| 570 | struct vnode *a_vp; |
| 571 | } */ *ap; |
| 572 | { |
| 573 | |
| 574 | printf("tag VT_PORTAL, portal vnode\n"); |
| 575 | return (0); |
| 576 | } |
| 577 | |
| 578 | |
| 579 | /* |
| 580 | * Portal "should never get here" operation |
| 581 | */ |
| 582 | static int |
| 583 | portal_badop() |
| 584 | { |
| 585 | |
| 586 | panic("portal: bad op"); |
| 587 | /* NOTREACHED */ |
| 588 | } |
| 589 | |
| 590 | vop_t **portal_vnodeop_p; |
| 591 | static struct vnodeopv_entry_desc portal_vnodeop_entries[] = { |
| 592 | { &vop_default_desc, (vop_t *) vop_defaultop }, |
| 593 | { &vop_access_desc, (vop_t *) vop_null }, |
| 594 | { &vop_bmap_desc, (vop_t *) portal_badop }, |
| 595 | { &vop_getattr_desc, (vop_t *) portal_getattr }, |
| 596 | { &vop_inactive_desc, (vop_t *) portal_inactive }, |
| 597 | { &vop_lookup_desc, (vop_t *) portal_lookup }, |
| 598 | { &vop_open_desc, (vop_t *) portal_open }, |
| 599 | { &vop_pathconf_desc, (vop_t *) vop_stdpathconf }, |
| 600 | { &vop_print_desc, (vop_t *) portal_print }, |
| 601 | { &vop_readdir_desc, (vop_t *) portal_readdir }, |
| 602 | { &vop_reclaim_desc, (vop_t *) portal_reclaim }, |
| 603 | { &vop_setattr_desc, (vop_t *) portal_setattr }, |
| 604 | { NULL, NULL } |
| 605 | }; |
| 606 | static struct vnodeopv_desc portal_vnodeop_opv_desc = |
| 607 | { &portal_vnodeop_p, portal_vnodeop_entries }; |
| 608 | |
| 609 | VNODEOP_SET(portal_vnodeop_opv_desc); |