1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <sys/param.h> 30*0Sstevel@tonic-gate #include <sys/systm.h> 31*0Sstevel@tonic-gate #include <sys/errno.h> 32*0Sstevel@tonic-gate #include <sys/vnode.h> 33*0Sstevel@tonic-gate #include <sys/vfs.h> 34*0Sstevel@tonic-gate #include <sys/uio.h> 35*0Sstevel@tonic-gate #include <sys/cred.h> 36*0Sstevel@tonic-gate #include <sys/pathname.h> 37*0Sstevel@tonic-gate #include <sys/debug.h> 38*0Sstevel@tonic-gate #include <sys/fs/lofs_node.h> 39*0Sstevel@tonic-gate #include <sys/fs/lofs_info.h> 40*0Sstevel@tonic-gate #include <fs/fs_subr.h> 41*0Sstevel@tonic-gate #include <vm/as.h> 42*0Sstevel@tonic-gate #include <vm/seg.h> 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate #define IS_ZONEDEVFS(vp) \ 45*0Sstevel@tonic-gate (vtoli((vp)->v_vfsp)->li_flag & LO_ZONEDEVFS) 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate /* 48*0Sstevel@tonic-gate * These are the vnode ops routines which implement the vnode interface to 49*0Sstevel@tonic-gate * the looped-back file system. These routines just take their parameters, 50*0Sstevel@tonic-gate * and then calling the appropriate real vnode routine(s) to do the work. 51*0Sstevel@tonic-gate */ 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate static int 54*0Sstevel@tonic-gate lo_open(vnode_t **vpp, int flag, struct cred *cr) 55*0Sstevel@tonic-gate { 56*0Sstevel@tonic-gate vnode_t *vp = *vpp; 57*0Sstevel@tonic-gate vnode_t *rvp; 58*0Sstevel@tonic-gate vnode_t *oldvp; 59*0Sstevel@tonic-gate int error; 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate #ifdef LODEBUG 62*0Sstevel@tonic-gate lo_dprint(4, "lo_open vp %p cnt=%d realvp %p cnt=%d\n", 63*0Sstevel@tonic-gate vp, vp->v_count, realvp(vp), realvp(vp)->v_count); 64*0Sstevel@tonic-gate #endif 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate oldvp = vp; 67*0Sstevel@tonic-gate vp = rvp = realvp(vp); 68*0Sstevel@tonic-gate /* 69*0Sstevel@tonic-gate * Need to hold new reference to vp since VOP_OPEN() may 70*0Sstevel@tonic-gate * decide to release it. 71*0Sstevel@tonic-gate */ 72*0Sstevel@tonic-gate VN_HOLD(vp); 73*0Sstevel@tonic-gate error = VOP_OPEN(&rvp, flag, cr); 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate if (!error && rvp != vp) { 76*0Sstevel@tonic-gate /* 77*0Sstevel@tonic-gate * the FS which we called should have released the 78*0Sstevel@tonic-gate * new reference on vp 79*0Sstevel@tonic-gate */ 80*0Sstevel@tonic-gate *vpp = makelonode(rvp, vtoli(oldvp->v_vfsp)); 81*0Sstevel@tonic-gate if (IS_DEVVP(*vpp)) { 82*0Sstevel@tonic-gate vnode_t *svp; 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate svp = specvp(*vpp, (*vpp)->v_rdev, (*vpp)->v_type, cr); 85*0Sstevel@tonic-gate VN_RELE(*vpp); 86*0Sstevel@tonic-gate if (svp == NULL) 87*0Sstevel@tonic-gate error = ENOSYS; 88*0Sstevel@tonic-gate else 89*0Sstevel@tonic-gate *vpp = svp; 90*0Sstevel@tonic-gate } 91*0Sstevel@tonic-gate VN_RELE(oldvp); 92*0Sstevel@tonic-gate } else { 93*0Sstevel@tonic-gate ASSERT(rvp->v_count > 1); 94*0Sstevel@tonic-gate VN_RELE(rvp); 95*0Sstevel@tonic-gate } 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate return (error); 98*0Sstevel@tonic-gate } 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate static int 101*0Sstevel@tonic-gate lo_close( 102*0Sstevel@tonic-gate vnode_t *vp, 103*0Sstevel@tonic-gate int flag, 104*0Sstevel@tonic-gate int count, 105*0Sstevel@tonic-gate offset_t offset, 106*0Sstevel@tonic-gate struct cred *cr) 107*0Sstevel@tonic-gate { 108*0Sstevel@tonic-gate #ifdef LODEBUG 109*0Sstevel@tonic-gate lo_dprint(4, "lo_close vp %p realvp %p\n", vp, realvp(vp)); 110*0Sstevel@tonic-gate #endif 111*0Sstevel@tonic-gate vp = realvp(vp); 112*0Sstevel@tonic-gate return (VOP_CLOSE(vp, flag, count, offset, cr)); 113*0Sstevel@tonic-gate } 114*0Sstevel@tonic-gate 115*0Sstevel@tonic-gate static int 116*0Sstevel@tonic-gate lo_read(vnode_t *vp, struct uio *uiop, int ioflag, struct cred *cr, 117*0Sstevel@tonic-gate caller_context_t *ct) 118*0Sstevel@tonic-gate { 119*0Sstevel@tonic-gate #ifdef LODEBUG 120*0Sstevel@tonic-gate lo_dprint(4, "lo_read vp %p realvp %p\n", vp, realvp(vp)); 121*0Sstevel@tonic-gate #endif 122*0Sstevel@tonic-gate vp = realvp(vp); 123*0Sstevel@tonic-gate return (VOP_READ(vp, uiop, ioflag, cr, ct)); 124*0Sstevel@tonic-gate } 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate static int 127*0Sstevel@tonic-gate lo_write(vnode_t *vp, struct uio *uiop, int ioflag, struct cred *cr, 128*0Sstevel@tonic-gate caller_context_t *ct) 129*0Sstevel@tonic-gate { 130*0Sstevel@tonic-gate #ifdef LODEBUG 131*0Sstevel@tonic-gate lo_dprint(4, "lo_write vp %p realvp %p\n", vp, realvp(vp)); 132*0Sstevel@tonic-gate #endif 133*0Sstevel@tonic-gate vp = realvp(vp); 134*0Sstevel@tonic-gate return (VOP_WRITE(vp, uiop, ioflag, cr, ct)); 135*0Sstevel@tonic-gate } 136*0Sstevel@tonic-gate 137*0Sstevel@tonic-gate static int 138*0Sstevel@tonic-gate lo_ioctl( 139*0Sstevel@tonic-gate vnode_t *vp, 140*0Sstevel@tonic-gate int cmd, 141*0Sstevel@tonic-gate intptr_t arg, 142*0Sstevel@tonic-gate int flag, 143*0Sstevel@tonic-gate struct cred *cr, 144*0Sstevel@tonic-gate int *rvalp) 145*0Sstevel@tonic-gate { 146*0Sstevel@tonic-gate #ifdef LODEBUG 147*0Sstevel@tonic-gate lo_dprint(4, "lo_ioctl vp %p realvp %p\n", vp, realvp(vp)); 148*0Sstevel@tonic-gate #endif 149*0Sstevel@tonic-gate vp = realvp(vp); 150*0Sstevel@tonic-gate return (VOP_IOCTL(vp, cmd, arg, flag, cr, rvalp)); 151*0Sstevel@tonic-gate } 152*0Sstevel@tonic-gate 153*0Sstevel@tonic-gate static int 154*0Sstevel@tonic-gate lo_setfl(vnode_t *vp, int oflags, int nflags, cred_t *cr) 155*0Sstevel@tonic-gate { 156*0Sstevel@tonic-gate vp = realvp(vp); 157*0Sstevel@tonic-gate return (VOP_SETFL(vp, oflags, nflags, cr)); 158*0Sstevel@tonic-gate } 159*0Sstevel@tonic-gate 160*0Sstevel@tonic-gate static int 161*0Sstevel@tonic-gate lo_getattr( 162*0Sstevel@tonic-gate vnode_t *vp, 163*0Sstevel@tonic-gate struct vattr *vap, 164*0Sstevel@tonic-gate int flags, 165*0Sstevel@tonic-gate struct cred *cr) 166*0Sstevel@tonic-gate { 167*0Sstevel@tonic-gate int error; 168*0Sstevel@tonic-gate 169*0Sstevel@tonic-gate #ifdef LODEBUG 170*0Sstevel@tonic-gate lo_dprint(4, "lo_getattr vp %p realvp %p\n", vp, realvp(vp)); 171*0Sstevel@tonic-gate #endif 172*0Sstevel@tonic-gate if (error = VOP_GETATTR(realvp(vp), vap, flags, cr)) 173*0Sstevel@tonic-gate return (error); 174*0Sstevel@tonic-gate 175*0Sstevel@tonic-gate /* 176*0Sstevel@tonic-gate * In zonedevfs mode, we pull a nasty trick; we make sure that 177*0Sstevel@tonic-gate * the dev_t does *not* reflect the underlying device, so that 178*0Sstevel@tonic-gate * no renames can occur to or from the /dev hierarchy. 179*0Sstevel@tonic-gate */ 180*0Sstevel@tonic-gate if (IS_ZONEDEVFS(vp)) { 181*0Sstevel@tonic-gate vap->va_fsid = expldev(vp->v_vfsp->vfs_fsid.val[0]); 182*0Sstevel@tonic-gate } 183*0Sstevel@tonic-gate 184*0Sstevel@tonic-gate return (0); 185*0Sstevel@tonic-gate } 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate static int 188*0Sstevel@tonic-gate lo_setattr( 189*0Sstevel@tonic-gate vnode_t *vp, 190*0Sstevel@tonic-gate struct vattr *vap, 191*0Sstevel@tonic-gate int flags, 192*0Sstevel@tonic-gate struct cred *cr, 193*0Sstevel@tonic-gate caller_context_t *ct) 194*0Sstevel@tonic-gate { 195*0Sstevel@tonic-gate #ifdef LODEBUG 196*0Sstevel@tonic-gate lo_dprint(4, "lo_setattr vp %p realvp %p\n", vp, realvp(vp)); 197*0Sstevel@tonic-gate #endif 198*0Sstevel@tonic-gate if (IS_ZONEDEVFS(vp) && !IS_DEVVP(vp)) { 199*0Sstevel@tonic-gate return (EACCES); 200*0Sstevel@tonic-gate } 201*0Sstevel@tonic-gate vp = realvp(vp); 202*0Sstevel@tonic-gate return (VOP_SETATTR(vp, vap, flags, cr, ct)); 203*0Sstevel@tonic-gate } 204*0Sstevel@tonic-gate 205*0Sstevel@tonic-gate static int 206*0Sstevel@tonic-gate lo_access(vnode_t *vp, int mode, int flags, struct cred *cr) 207*0Sstevel@tonic-gate { 208*0Sstevel@tonic-gate #ifdef LODEBUG 209*0Sstevel@tonic-gate lo_dprint(4, "lo_access vp %p realvp %p\n", vp, realvp(vp)); 210*0Sstevel@tonic-gate #endif 211*0Sstevel@tonic-gate if (mode & VWRITE) { 212*0Sstevel@tonic-gate if (vp->v_type == VREG && vn_is_readonly(vp)) 213*0Sstevel@tonic-gate return (EROFS); 214*0Sstevel@tonic-gate if (IS_ZONEDEVFS(vp) && !IS_DEVVP(vp)) 215*0Sstevel@tonic-gate return (EACCES); 216*0Sstevel@tonic-gate } 217*0Sstevel@tonic-gate vp = realvp(vp); 218*0Sstevel@tonic-gate return (VOP_ACCESS(vp, mode, flags, cr)); 219*0Sstevel@tonic-gate } 220*0Sstevel@tonic-gate 221*0Sstevel@tonic-gate static int 222*0Sstevel@tonic-gate lo_fsync(vnode_t *vp, int syncflag, struct cred *cr) 223*0Sstevel@tonic-gate { 224*0Sstevel@tonic-gate #ifdef LODEBUG 225*0Sstevel@tonic-gate lo_dprint(4, "lo_fsync vp %p realvp %p\n", vp, realvp(vp)); 226*0Sstevel@tonic-gate #endif 227*0Sstevel@tonic-gate vp = realvp(vp); 228*0Sstevel@tonic-gate return (VOP_FSYNC(vp, syncflag, cr)); 229*0Sstevel@tonic-gate } 230*0Sstevel@tonic-gate 231*0Sstevel@tonic-gate /*ARGSUSED*/ 232*0Sstevel@tonic-gate static void 233*0Sstevel@tonic-gate lo_inactive(vnode_t *vp, struct cred *cr) 234*0Sstevel@tonic-gate { 235*0Sstevel@tonic-gate #ifdef LODEBUG 236*0Sstevel@tonic-gate lo_dprint(4, "lo_inactive %p, realvp %p\n", vp, realvp(vp)); 237*0Sstevel@tonic-gate #endif 238*0Sstevel@tonic-gate freelonode(vtol(vp)); 239*0Sstevel@tonic-gate } 240*0Sstevel@tonic-gate 241*0Sstevel@tonic-gate /* ARGSUSED */ 242*0Sstevel@tonic-gate static int 243*0Sstevel@tonic-gate lo_fid(vnode_t *vp, struct fid *fidp) 244*0Sstevel@tonic-gate { 245*0Sstevel@tonic-gate #ifdef LODEBUG 246*0Sstevel@tonic-gate lo_dprint(4, "lo_fid %p, realvp %p\n", vp, realvp(vp)); 247*0Sstevel@tonic-gate #endif 248*0Sstevel@tonic-gate vp = realvp(vp); 249*0Sstevel@tonic-gate return (VOP_FID(vp, fidp)); 250*0Sstevel@tonic-gate } 251*0Sstevel@tonic-gate 252*0Sstevel@tonic-gate /* 253*0Sstevel@tonic-gate * Given a vnode of lofs type, lookup nm name and 254*0Sstevel@tonic-gate * return a shadow vnode (of lofs type) of the 255*0Sstevel@tonic-gate * real vnode found. 256*0Sstevel@tonic-gate * 257*0Sstevel@tonic-gate * Due to the nature of lofs, there is a potential 258*0Sstevel@tonic-gate * looping in path traversal. 259*0Sstevel@tonic-gate * 260*0Sstevel@tonic-gate * starting from the mount point of an lofs; 261*0Sstevel@tonic-gate * a loop is defined to be a traversal path 262*0Sstevel@tonic-gate * where the mount point or the real vnode of 263*0Sstevel@tonic-gate * the root of this lofs is encountered twice. 264*0Sstevel@tonic-gate * Once at the start of traversal and second 265*0Sstevel@tonic-gate * when the looping is found. 266*0Sstevel@tonic-gate * 267*0Sstevel@tonic-gate * When a loop is encountered, a shadow of the 268*0Sstevel@tonic-gate * covered vnode is returned to stop the looping. 269*0Sstevel@tonic-gate * 270*0Sstevel@tonic-gate * This normally works, but with the advent of 271*0Sstevel@tonic-gate * the new automounter, returning the shadow of the 272*0Sstevel@tonic-gate * covered vnode (autonode, in this case) does not 273*0Sstevel@tonic-gate * stop the loop. Because further lookup on this 274*0Sstevel@tonic-gate * lonode will cause the autonode to call lo_lookup() 275*0Sstevel@tonic-gate * on the lonode covering it. 276*0Sstevel@tonic-gate * 277*0Sstevel@tonic-gate * example "/net/jurassic/net/jurassic" is a loop. 278*0Sstevel@tonic-gate * returning the shadow of the autonode corresponding to 279*0Sstevel@tonic-gate * "/net/jurassic/net/jurassic" will not terminate the 280*0Sstevel@tonic-gate * loop. To solve this problem we allow the loop to go 281*0Sstevel@tonic-gate * through one more level component lookup. If it hit 282*0Sstevel@tonic-gate * "net" after the loop as in "/net/jurassic/net/jurassic/net", 283*0Sstevel@tonic-gate * then returning the vnode covered by the autonode "net" 284*0Sstevel@tonic-gate * will terminate the loop. 285*0Sstevel@tonic-gate * 286*0Sstevel@tonic-gate * Lookup for dot dot has to be dealt with separately. 287*0Sstevel@tonic-gate * It will be nice to have a "one size fits all" kind 288*0Sstevel@tonic-gate * of solution, so that we don't have so many ifs statement 289*0Sstevel@tonic-gate * in the lo_lookup() to handle dotdot. But, since 290*0Sstevel@tonic-gate * there are so many special cases to handle different 291*0Sstevel@tonic-gate * kinds looping above, we need special codes to handle 292*0Sstevel@tonic-gate * dotdot lookup as well. 293*0Sstevel@tonic-gate */ 294*0Sstevel@tonic-gate static int 295*0Sstevel@tonic-gate lo_lookup( 296*0Sstevel@tonic-gate vnode_t *dvp, 297*0Sstevel@tonic-gate char *nm, 298*0Sstevel@tonic-gate vnode_t **vpp, 299*0Sstevel@tonic-gate struct pathname *pnp, 300*0Sstevel@tonic-gate int flags, 301*0Sstevel@tonic-gate vnode_t *rdir, 302*0Sstevel@tonic-gate struct cred *cr) 303*0Sstevel@tonic-gate { 304*0Sstevel@tonic-gate vnode_t *vp = NULL, *tvp = NULL, *nonlovp; 305*0Sstevel@tonic-gate int error, is_indirectloop; 306*0Sstevel@tonic-gate vnode_t *realdvp = realvp(dvp); 307*0Sstevel@tonic-gate struct loinfo *li = vtoli(dvp->v_vfsp); 308*0Sstevel@tonic-gate int looping = 0; 309*0Sstevel@tonic-gate int doingdotdot = 0; 310*0Sstevel@tonic-gate int nosub = 0; 311*0Sstevel@tonic-gate 312*0Sstevel@tonic-gate /* 313*0Sstevel@tonic-gate * If name is empty and no XATTR flags are set, then return 314*0Sstevel@tonic-gate * dvp (empty name == lookup "."). If an XATTR flag is set 315*0Sstevel@tonic-gate * then we need to call VOP_LOOKUP to get the xattr dir. 316*0Sstevel@tonic-gate */ 317*0Sstevel@tonic-gate if (nm[0] == '\0' && ! (flags & (CREATE_XATTR_DIR|LOOKUP_XATTR))) { 318*0Sstevel@tonic-gate VN_HOLD(dvp); 319*0Sstevel@tonic-gate *vpp = dvp; 320*0Sstevel@tonic-gate return (0); 321*0Sstevel@tonic-gate } 322*0Sstevel@tonic-gate 323*0Sstevel@tonic-gate if (nm[0] == '.' && nm[1] == '.' && nm[2] == '\0') { 324*0Sstevel@tonic-gate doingdotdot++; 325*0Sstevel@tonic-gate /* 326*0Sstevel@tonic-gate * Handle ".." out of mounted filesystem 327*0Sstevel@tonic-gate */ 328*0Sstevel@tonic-gate while ((realdvp->v_flag & VROOT) && realdvp != rootdir) { 329*0Sstevel@tonic-gate realdvp = realdvp->v_vfsp->vfs_vnodecovered; 330*0Sstevel@tonic-gate ASSERT(realdvp != NULL); 331*0Sstevel@tonic-gate } 332*0Sstevel@tonic-gate } 333*0Sstevel@tonic-gate 334*0Sstevel@tonic-gate *vpp = NULL; /* default(error) case */ 335*0Sstevel@tonic-gate 336*0Sstevel@tonic-gate /* 337*0Sstevel@tonic-gate * Do the normal lookup 338*0Sstevel@tonic-gate */ 339*0Sstevel@tonic-gate if (error = VOP_LOOKUP(realdvp, nm, &vp, pnp, flags, rdir, cr)) 340*0Sstevel@tonic-gate goto out; 341*0Sstevel@tonic-gate 342*0Sstevel@tonic-gate /* 343*0Sstevel@tonic-gate * We do this check here to avoid returning a stale file handle to the 344*0Sstevel@tonic-gate * caller. 345*0Sstevel@tonic-gate */ 346*0Sstevel@tonic-gate if (nm[0] == '.' && nm[1] == '\0') { 347*0Sstevel@tonic-gate ASSERT(vp == realdvp); 348*0Sstevel@tonic-gate VN_HOLD(dvp); 349*0Sstevel@tonic-gate VN_RELE(vp); 350*0Sstevel@tonic-gate *vpp = dvp; 351*0Sstevel@tonic-gate return (0); 352*0Sstevel@tonic-gate } 353*0Sstevel@tonic-gate 354*0Sstevel@tonic-gate if (doingdotdot) { 355*0Sstevel@tonic-gate if ((vtol(dvp))->lo_looping) { 356*0Sstevel@tonic-gate vfs_t *vfsp; 357*0Sstevel@tonic-gate 358*0Sstevel@tonic-gate error = vn_vfswlock_wait(realdvp); 359*0Sstevel@tonic-gate if (error) 360*0Sstevel@tonic-gate goto out; 361*0Sstevel@tonic-gate vfsp = vn_mountedvfs(realdvp); 362*0Sstevel@tonic-gate if (vfsp != NULL) { 363*0Sstevel@tonic-gate /* 364*0Sstevel@tonic-gate * if looping get the actual found vnode 365*0Sstevel@tonic-gate * instead of the vnode covered 366*0Sstevel@tonic-gate * Here we have to hold the lock for realdvp 367*0Sstevel@tonic-gate * since an unmount during the traversal to the 368*0Sstevel@tonic-gate * root vnode would turn *vfsp into garbage 369*0Sstevel@tonic-gate * which would be fatal. 370*0Sstevel@tonic-gate */ 371*0Sstevel@tonic-gate vfs_lock_wait(vfsp); 372*0Sstevel@tonic-gate vn_vfsunlock(realdvp); 373*0Sstevel@tonic-gate 374*0Sstevel@tonic-gate error = VFS_ROOT(vfsp, &tvp); 375*0Sstevel@tonic-gate 376*0Sstevel@tonic-gate vfs_unlock(vfsp); 377*0Sstevel@tonic-gate if (error) 378*0Sstevel@tonic-gate goto out; 379*0Sstevel@tonic-gate if ((tvp == li->li_rootvp)&& 380*0Sstevel@tonic-gate (vp == realvp(tvp))) { 381*0Sstevel@tonic-gate /* 382*0Sstevel@tonic-gate * we're back at the real vnode 383*0Sstevel@tonic-gate * of the rootvp 384*0Sstevel@tonic-gate * 385*0Sstevel@tonic-gate * return the rootvp 386*0Sstevel@tonic-gate * Ex: /mnt/mnt/.. 387*0Sstevel@tonic-gate * where / has been lofs-mounted 388*0Sstevel@tonic-gate * onto /mnt. Return the lofs 389*0Sstevel@tonic-gate * node mounted at /mnt. 390*0Sstevel@tonic-gate */ 391*0Sstevel@tonic-gate *vpp = tvp; 392*0Sstevel@tonic-gate VN_RELE(vp); 393*0Sstevel@tonic-gate return (0); 394*0Sstevel@tonic-gate } else { 395*0Sstevel@tonic-gate /* 396*0Sstevel@tonic-gate * We are returning from a covered 397*0Sstevel@tonic-gate * node whose vfs_mountedhere is 398*0Sstevel@tonic-gate * not pointing to vfs of the current 399*0Sstevel@tonic-gate * root vnode. 400*0Sstevel@tonic-gate * This is a condn where in we 401*0Sstevel@tonic-gate * returned a covered node say Zc 402*0Sstevel@tonic-gate * but Zc is not the cover of current 403*0Sstevel@tonic-gate * root. 404*0Sstevel@tonic-gate * i.e.., if X is the root vnode 405*0Sstevel@tonic-gate * lookup(Zc,"..") is taking us to 406*0Sstevel@tonic-gate * X. 407*0Sstevel@tonic-gate * Ex: /net/X/net/X/net 408*0Sstevel@tonic-gate * We are encountering cover of net. 409*0Sstevel@tonic-gate * doing a dotdot from here means we 410*0Sstevel@tonic-gate * to take the lookup to the same state 411*0Sstevel@tonic-gate * that would have happened when we do 412*0Sstevel@tonic-gate * lookup of any Y under /net/X/net/X 413*0Sstevel@tonic-gate */ 414*0Sstevel@tonic-gate VN_RELE(tvp); 415*0Sstevel@tonic-gate if (vp == realvp(li->li_rootvp)) { 416*0Sstevel@tonic-gate VN_RELE(vp); 417*0Sstevel@tonic-gate vp = li->li_rootvp; 418*0Sstevel@tonic-gate vp = vp->v_vfsp-> 419*0Sstevel@tonic-gate vfs_vnodecovered; 420*0Sstevel@tonic-gate VN_HOLD(vp); 421*0Sstevel@tonic-gate *vpp = makelonode(vp, li); 422*0Sstevel@tonic-gate (vtol(*vpp))->lo_looping = 1; 423*0Sstevel@tonic-gate return (0); 424*0Sstevel@tonic-gate } 425*0Sstevel@tonic-gate } 426*0Sstevel@tonic-gate } else { 427*0Sstevel@tonic-gate /* 428*0Sstevel@tonic-gate * We are returning from a looping dvp. 429*0Sstevel@tonic-gate * If we are returning to rootvp return 430*0Sstevel@tonic-gate * the covered node with looping bit set. 431*0Sstevel@tonic-gate * 432*0Sstevel@tonic-gate * This means we are not returning from cover 433*0Sstevel@tonic-gate * but we should return to the root node by 434*0Sstevel@tonic-gate * giving the covered node with looping flag 435*0Sstevel@tonic-gate * set. We are returning from a non-covernode 436*0Sstevel@tonic-gate * with looping bit set means we couldn't stop 437*0Sstevel@tonic-gate * by giving the cover of root vnode. 438*0Sstevel@tonic-gate * 439*0Sstevel@tonic-gate * Say X is the root vnode and lookup of 440*0Sstevel@tonic-gate * X again under X returns Xc(due to looping 441*0Sstevel@tonic-gate * condn). let Z=lookup(Xc,"path") and 442*0Sstevel@tonic-gate * if lookup(Z,"..") returns the root vp X 443*0Sstevel@tonic-gate * return Xc with looping bit set or if a new 444*0Sstevel@tonic-gate * node Z.. is returned make a shadow with a 445*0Sstevel@tonic-gate * looping flag. 446*0Sstevel@tonic-gate * 447*0Sstevel@tonic-gate * Ex:- lookup of /net/X/net/X/Y/.. or 448*0Sstevel@tonic-gate * lookup of /net/X/net/X/Y/Z/.. . 449*0Sstevel@tonic-gate * In the first case we are returning to root 450*0Sstevel@tonic-gate * we will return the cover of root with 451*0Sstevel@tonic-gate * looping bit set. 452*0Sstevel@tonic-gate */ 453*0Sstevel@tonic-gate vn_vfsunlock(realdvp); 454*0Sstevel@tonic-gate if (vp == li->li_rootvp) { 455*0Sstevel@tonic-gate tvp = vp; 456*0Sstevel@tonic-gate vp = (vp)->v_vfsp->vfs_vnodecovered; 457*0Sstevel@tonic-gate VN_RELE(tvp); 458*0Sstevel@tonic-gate VN_HOLD(vp); 459*0Sstevel@tonic-gate } 460*0Sstevel@tonic-gate *vpp = makelonode(vp, li); 461*0Sstevel@tonic-gate (vtol(*vpp))->lo_looping = 1; 462*0Sstevel@tonic-gate return (0); 463*0Sstevel@tonic-gate } 464*0Sstevel@tonic-gate } else { 465*0Sstevel@tonic-gate /* 466*0Sstevel@tonic-gate * No frills just make the shadow node. 467*0Sstevel@tonic-gate */ 468*0Sstevel@tonic-gate *vpp = makelonode(vp, li); 469*0Sstevel@tonic-gate return (0); 470*0Sstevel@tonic-gate } 471*0Sstevel@tonic-gate } 472*0Sstevel@tonic-gate 473*0Sstevel@tonic-gate nosub = (vtoli(dvp->v_vfsp)->li_flag & LO_NOSUB); 474*0Sstevel@tonic-gate 475*0Sstevel@tonic-gate /* 476*0Sstevel@tonic-gate * If this vnode is mounted on, then we 477*0Sstevel@tonic-gate * traverse to the vnode which is the root of 478*0Sstevel@tonic-gate * the mounted file system. 479*0Sstevel@tonic-gate */ 480*0Sstevel@tonic-gate if (!nosub && (error = traverse(&vp))) 481*0Sstevel@tonic-gate goto out; 482*0Sstevel@tonic-gate 483*0Sstevel@tonic-gate /* 484*0Sstevel@tonic-gate * Make a lnode for the real vnode. 485*0Sstevel@tonic-gate */ 486*0Sstevel@tonic-gate if (vp->v_type != VDIR || nosub) { 487*0Sstevel@tonic-gate *vpp = makelonode(vp, li); 488*0Sstevel@tonic-gate if (IS_DEVVP(*vpp)) { 489*0Sstevel@tonic-gate vnode_t *svp; 490*0Sstevel@tonic-gate 491*0Sstevel@tonic-gate svp = specvp(*vpp, (*vpp)->v_rdev, (*vpp)->v_type, cr); 492*0Sstevel@tonic-gate VN_RELE(*vpp); 493*0Sstevel@tonic-gate if (svp == NULL) 494*0Sstevel@tonic-gate error = ENOSYS; 495*0Sstevel@tonic-gate else 496*0Sstevel@tonic-gate *vpp = svp; 497*0Sstevel@tonic-gate } 498*0Sstevel@tonic-gate return (error); 499*0Sstevel@tonic-gate } 500*0Sstevel@tonic-gate 501*0Sstevel@tonic-gate /* 502*0Sstevel@tonic-gate * if the found vnode (vp) is not of type lofs 503*0Sstevel@tonic-gate * then we're just going to make a shadow of that 504*0Sstevel@tonic-gate * vp and get out. 505*0Sstevel@tonic-gate * 506*0Sstevel@tonic-gate * If the found vnode (vp) is of lofs type, and 507*0Sstevel@tonic-gate * we're not doing dotdot, check if we are 508*0Sstevel@tonic-gate * looping. 509*0Sstevel@tonic-gate */ 510*0Sstevel@tonic-gate if (!doingdotdot && vfs_matchops(vp->v_vfsp, lo_vfsops)) { 511*0Sstevel@tonic-gate /* 512*0Sstevel@tonic-gate * Check if we're looping, i.e. 513*0Sstevel@tonic-gate * vp equals the root vp of the lofs, directly 514*0Sstevel@tonic-gate * or indirectly, return the covered node. 515*0Sstevel@tonic-gate */ 516*0Sstevel@tonic-gate 517*0Sstevel@tonic-gate if (!(vtol(dvp))->lo_looping) { 518*0Sstevel@tonic-gate if (vp == li->li_rootvp) { 519*0Sstevel@tonic-gate /* 520*0Sstevel@tonic-gate * Direct looping condn. 521*0Sstevel@tonic-gate * Ex:- X is / mounted directory so lookup of 522*0Sstevel@tonic-gate * /X/X is a direct looping condn. 523*0Sstevel@tonic-gate */ 524*0Sstevel@tonic-gate tvp = vp; 525*0Sstevel@tonic-gate vp = vp->v_vfsp->vfs_vnodecovered; 526*0Sstevel@tonic-gate VN_HOLD(vp); 527*0Sstevel@tonic-gate VN_RELE(tvp); 528*0Sstevel@tonic-gate looping++; 529*0Sstevel@tonic-gate } else { 530*0Sstevel@tonic-gate /* 531*0Sstevel@tonic-gate * Indirect looping can be defined as 532*0Sstevel@tonic-gate * real lookup returning rootvp of the current 533*0Sstevel@tonic-gate * tree in any level of recursion. 534*0Sstevel@tonic-gate * 535*0Sstevel@tonic-gate * This check is useful if there are multiple 536*0Sstevel@tonic-gate * levels of lofs indirections. Suppose vnode X 537*0Sstevel@tonic-gate * in the current lookup has as its real vnode 538*0Sstevel@tonic-gate * another lofs node. Y = realvp(X) Y should be 539*0Sstevel@tonic-gate * a lofs node for the check to continue or Y 540*0Sstevel@tonic-gate * is not the rootvp of X. 541*0Sstevel@tonic-gate * Ex:- say X and Y are two vnodes 542*0Sstevel@tonic-gate * say real(Y) is X and real(X) is Z 543*0Sstevel@tonic-gate * parent vnode for X and Y is Z 544*0Sstevel@tonic-gate * lookup(Y,"path") say we are looking for Y 545*0Sstevel@tonic-gate * again under Y and we have to return Yc. 546*0Sstevel@tonic-gate * but the lookup of Y under Y doesnot return 547*0Sstevel@tonic-gate * Y the root vnode again here is why. 548*0Sstevel@tonic-gate * 1. lookup(Y,"path of Y") will go to 549*0Sstevel@tonic-gate * 2. lookup(real(Y),"path of Y") and then to 550*0Sstevel@tonic-gate * 3. lookup(real(X),"path of Y"). 551*0Sstevel@tonic-gate * and now what lookup level 1 sees is the 552*0Sstevel@tonic-gate * outcome of 2 but the vnode Y is due to 553*0Sstevel@tonic-gate * lookup(Z,"path of Y") so we have to skip 554*0Sstevel@tonic-gate * intermediate levels to find if in any level 555*0Sstevel@tonic-gate * there is a looping. 556*0Sstevel@tonic-gate */ 557*0Sstevel@tonic-gate is_indirectloop = 0; 558*0Sstevel@tonic-gate nonlovp = vp; 559*0Sstevel@tonic-gate while ( 560*0Sstevel@tonic-gate vfs_matchops(nonlovp->v_vfsp, lo_vfsops) && 561*0Sstevel@tonic-gate !(is_indirectloop)) { 562*0Sstevel@tonic-gate if (li->li_rootvp == nonlovp) { 563*0Sstevel@tonic-gate is_indirectloop++; 564*0Sstevel@tonic-gate break; 565*0Sstevel@tonic-gate } 566*0Sstevel@tonic-gate nonlovp = realvp(nonlovp); 567*0Sstevel@tonic-gate } 568*0Sstevel@tonic-gate 569*0Sstevel@tonic-gate if (is_indirectloop) { 570*0Sstevel@tonic-gate VN_RELE(vp); 571*0Sstevel@tonic-gate vp = nonlovp; 572*0Sstevel@tonic-gate vp = vp->v_vfsp->vfs_vnodecovered; 573*0Sstevel@tonic-gate VN_HOLD(vp); 574*0Sstevel@tonic-gate looping++; 575*0Sstevel@tonic-gate } 576*0Sstevel@tonic-gate } 577*0Sstevel@tonic-gate } else { 578*0Sstevel@tonic-gate /* 579*0Sstevel@tonic-gate * come here only because of the interaction between 580*0Sstevel@tonic-gate * the autofs and lofs. 581*0Sstevel@tonic-gate * 582*0Sstevel@tonic-gate * Lookup of "/net/X/net/X" will return a shadow of 583*0Sstevel@tonic-gate * an autonode X_a which we call X_l. 584*0Sstevel@tonic-gate * 585*0Sstevel@tonic-gate * Lookup of anything under X_l, will trigger a call to 586*0Sstevel@tonic-gate * auto_lookup(X_a,nm) which will eventually call 587*0Sstevel@tonic-gate * lo_lookup(X_lr,nm) where X_lr is the root vnode of 588*0Sstevel@tonic-gate * the current lofs. 589*0Sstevel@tonic-gate * 590*0Sstevel@tonic-gate * We come here only when we are called with X_l as dvp 591*0Sstevel@tonic-gate * and look for something underneath. 592*0Sstevel@tonic-gate * 593*0Sstevel@tonic-gate * We need to find out if the vnode, which vp is 594*0Sstevel@tonic-gate * shadowing, is the rootvp of the autofs. 595*0Sstevel@tonic-gate * 596*0Sstevel@tonic-gate */ 597*0Sstevel@tonic-gate realdvp = realvp(dvp); 598*0Sstevel@tonic-gate while (vfs_matchops(realdvp->v_vfsp, lo_vfsops)) { 599*0Sstevel@tonic-gate realdvp = realvp(realdvp); 600*0Sstevel@tonic-gate } 601*0Sstevel@tonic-gate 602*0Sstevel@tonic-gate error = VFS_ROOT(realdvp->v_vfsp, &tvp); 603*0Sstevel@tonic-gate if (error) 604*0Sstevel@tonic-gate goto out; 605*0Sstevel@tonic-gate /* 606*0Sstevel@tonic-gate * tvp now contains the rootvp of the vfs of the 607*0Sstevel@tonic-gate * real vnode of dvp 608*0Sstevel@tonic-gate */ 609*0Sstevel@tonic-gate 610*0Sstevel@tonic-gate if (realvp(dvp)->v_vfsp == realvp(vp)->v_vfsp && 611*0Sstevel@tonic-gate tvp == realvp(vp)) { 612*0Sstevel@tonic-gate /* 613*0Sstevel@tonic-gate * vp is the shadow of "net", 614*0Sstevel@tonic-gate * the rootvp of autofs 615*0Sstevel@tonic-gate */ 616*0Sstevel@tonic-gate VN_RELE(vp); 617*0Sstevel@tonic-gate vp = tvp; /* this is an autonode */ 618*0Sstevel@tonic-gate 619*0Sstevel@tonic-gate /* 620*0Sstevel@tonic-gate * Need to find the covered vnode 621*0Sstevel@tonic-gate */ 622*0Sstevel@tonic-gate vp = vp->v_vfsp->vfs_vnodecovered; 623*0Sstevel@tonic-gate ASSERT(vp); 624*0Sstevel@tonic-gate VN_HOLD(vp); 625*0Sstevel@tonic-gate VN_RELE(tvp); 626*0Sstevel@tonic-gate } else { 627*0Sstevel@tonic-gate VN_RELE(tvp); 628*0Sstevel@tonic-gate } 629*0Sstevel@tonic-gate } 630*0Sstevel@tonic-gate } 631*0Sstevel@tonic-gate *vpp = makelonode(vp, li); 632*0Sstevel@tonic-gate 633*0Sstevel@tonic-gate if ((looping) || ((vtol(dvp))->lo_looping && !doingdotdot)) { 634*0Sstevel@tonic-gate (vtol(*vpp))->lo_looping = 1; 635*0Sstevel@tonic-gate } 636*0Sstevel@tonic-gate 637*0Sstevel@tonic-gate out: 638*0Sstevel@tonic-gate if (error != 0 && vp != NULL) 639*0Sstevel@tonic-gate VN_RELE(vp); 640*0Sstevel@tonic-gate #ifdef LODEBUG 641*0Sstevel@tonic-gate lo_dprint(4, 642*0Sstevel@tonic-gate "lo_lookup dvp %x realdvp %x nm '%s' newvp %x real vp %x error %d\n", 643*0Sstevel@tonic-gate dvp, realvp(dvp), nm, *vpp, vp, error); 644*0Sstevel@tonic-gate #endif 645*0Sstevel@tonic-gate return (error); 646*0Sstevel@tonic-gate } 647*0Sstevel@tonic-gate 648*0Sstevel@tonic-gate /*ARGSUSED*/ 649*0Sstevel@tonic-gate static int 650*0Sstevel@tonic-gate lo_create( 651*0Sstevel@tonic-gate vnode_t *dvp, 652*0Sstevel@tonic-gate char *nm, 653*0Sstevel@tonic-gate struct vattr *va, 654*0Sstevel@tonic-gate enum vcexcl exclusive, 655*0Sstevel@tonic-gate int mode, 656*0Sstevel@tonic-gate vnode_t **vpp, 657*0Sstevel@tonic-gate struct cred *cr, 658*0Sstevel@tonic-gate int flag) 659*0Sstevel@tonic-gate { 660*0Sstevel@tonic-gate int error; 661*0Sstevel@tonic-gate vnode_t *vp = NULL; 662*0Sstevel@tonic-gate 663*0Sstevel@tonic-gate #ifdef LODEBUG 664*0Sstevel@tonic-gate lo_dprint(4, "lo_create vp %p realvp %p\n", dvp, realvp(dvp)); 665*0Sstevel@tonic-gate #endif 666*0Sstevel@tonic-gate if (*nm == '\0') { 667*0Sstevel@tonic-gate ASSERT(vpp && dvp == *vpp); 668*0Sstevel@tonic-gate vp = realvp(*vpp); 669*0Sstevel@tonic-gate } 670*0Sstevel@tonic-gate 671*0Sstevel@tonic-gate if (IS_ZONEDEVFS(dvp)) { 672*0Sstevel@tonic-gate /* Is this truly a create? If so, fail */ 673*0Sstevel@tonic-gate if (*vpp == NULL) 674*0Sstevel@tonic-gate return (EACCES); 675*0Sstevel@tonic-gate 676*0Sstevel@tonic-gate /* Is this an open of a non-special for writing? If so, fail */ 677*0Sstevel@tonic-gate if (*vpp != NULL && (mode & VWRITE) && !IS_DEVVP(*vpp)) 678*0Sstevel@tonic-gate return (EACCES); 679*0Sstevel@tonic-gate } 680*0Sstevel@tonic-gate 681*0Sstevel@tonic-gate error = VOP_CREATE(realvp(dvp), nm, va, exclusive, mode, &vp, cr, flag); 682*0Sstevel@tonic-gate if (!error) { 683*0Sstevel@tonic-gate *vpp = makelonode(vp, vtoli(dvp->v_vfsp)); 684*0Sstevel@tonic-gate if (IS_DEVVP(*vpp)) { 685*0Sstevel@tonic-gate vnode_t *svp; 686*0Sstevel@tonic-gate 687*0Sstevel@tonic-gate svp = specvp(*vpp, (*vpp)->v_rdev, (*vpp)->v_type, cr); 688*0Sstevel@tonic-gate VN_RELE(*vpp); 689*0Sstevel@tonic-gate if (svp == NULL) 690*0Sstevel@tonic-gate error = ENOSYS; 691*0Sstevel@tonic-gate else 692*0Sstevel@tonic-gate *vpp = svp; 693*0Sstevel@tonic-gate } 694*0Sstevel@tonic-gate } 695*0Sstevel@tonic-gate return (error); 696*0Sstevel@tonic-gate } 697*0Sstevel@tonic-gate 698*0Sstevel@tonic-gate static int 699*0Sstevel@tonic-gate lo_remove(vnode_t *dvp, char *nm, struct cred *cr) 700*0Sstevel@tonic-gate { 701*0Sstevel@tonic-gate #ifdef LODEBUG 702*0Sstevel@tonic-gate lo_dprint(4, "lo_remove vp %p realvp %p\n", dvp, realvp(dvp)); 703*0Sstevel@tonic-gate #endif 704*0Sstevel@tonic-gate if (IS_ZONEDEVFS(dvp)) 705*0Sstevel@tonic-gate return (EACCES); 706*0Sstevel@tonic-gate dvp = realvp(dvp); 707*0Sstevel@tonic-gate return (VOP_REMOVE(dvp, nm, cr)); 708*0Sstevel@tonic-gate } 709*0Sstevel@tonic-gate 710*0Sstevel@tonic-gate static int 711*0Sstevel@tonic-gate lo_link(vnode_t *tdvp, vnode_t *vp, char *tnm, struct cred *cr) 712*0Sstevel@tonic-gate { 713*0Sstevel@tonic-gate #ifdef LODEBUG 714*0Sstevel@tonic-gate lo_dprint(4, "lo_link vp %p realvp %p\n", vp, realvp(vp)); 715*0Sstevel@tonic-gate #endif 716*0Sstevel@tonic-gate while (vn_matchops(vp, lo_vnodeops)) { 717*0Sstevel@tonic-gate if (IS_ZONEDEVFS(vp)) 718*0Sstevel@tonic-gate return (EACCES); 719*0Sstevel@tonic-gate vp = realvp(vp); 720*0Sstevel@tonic-gate } 721*0Sstevel@tonic-gate while (vn_matchops(tdvp, lo_vnodeops)) { 722*0Sstevel@tonic-gate if (IS_ZONEDEVFS(tdvp)) 723*0Sstevel@tonic-gate return (EACCES); 724*0Sstevel@tonic-gate tdvp = realvp(tdvp); 725*0Sstevel@tonic-gate } 726*0Sstevel@tonic-gate if (vp->v_vfsp != tdvp->v_vfsp) 727*0Sstevel@tonic-gate return (EXDEV); 728*0Sstevel@tonic-gate return (VOP_LINK(tdvp, vp, tnm, cr)); 729*0Sstevel@tonic-gate } 730*0Sstevel@tonic-gate 731*0Sstevel@tonic-gate static int 732*0Sstevel@tonic-gate lo_rename( 733*0Sstevel@tonic-gate vnode_t *odvp, 734*0Sstevel@tonic-gate char *onm, 735*0Sstevel@tonic-gate vnode_t *ndvp, 736*0Sstevel@tonic-gate char *nnm, 737*0Sstevel@tonic-gate struct cred *cr) 738*0Sstevel@tonic-gate { 739*0Sstevel@tonic-gate vnode_t *tnvp; 740*0Sstevel@tonic-gate 741*0Sstevel@tonic-gate #ifdef LODEBUG 742*0Sstevel@tonic-gate lo_dprint(4, "lo_rename vp %p realvp %p\n", odvp, realvp(odvp)); 743*0Sstevel@tonic-gate #endif 744*0Sstevel@tonic-gate if (IS_ZONEDEVFS(odvp)) 745*0Sstevel@tonic-gate return (EACCES); 746*0Sstevel@tonic-gate /* 747*0Sstevel@tonic-gate * We need to make sure we're not trying to remove a mount point for a 748*0Sstevel@tonic-gate * filesystem mounted on top of lofs, which only we know about. 749*0Sstevel@tonic-gate */ 750*0Sstevel@tonic-gate if (vn_matchops(ndvp, lo_vnodeops)) /* Not our problem. */ 751*0Sstevel@tonic-gate goto rename; 752*0Sstevel@tonic-gate if (VOP_LOOKUP(ndvp, nnm, &tnvp, NULL, 0, NULL, cr) != 0) 753*0Sstevel@tonic-gate goto rename; 754*0Sstevel@tonic-gate if (tnvp->v_type != VDIR) { 755*0Sstevel@tonic-gate VN_RELE(tnvp); 756*0Sstevel@tonic-gate goto rename; 757*0Sstevel@tonic-gate } 758*0Sstevel@tonic-gate if (vn_mountedvfs(tnvp)) { 759*0Sstevel@tonic-gate VN_RELE(tnvp); 760*0Sstevel@tonic-gate return (EBUSY); 761*0Sstevel@tonic-gate } 762*0Sstevel@tonic-gate VN_RELE(tnvp); 763*0Sstevel@tonic-gate rename: 764*0Sstevel@tonic-gate /* 765*0Sstevel@tonic-gate * Since the case we're dealing with above can happen at any layer in 766*0Sstevel@tonic-gate * the stack of lofs filesystems, we need to recurse down the stack, 767*0Sstevel@tonic-gate * checking to see if there are any instances of a filesystem mounted on 768*0Sstevel@tonic-gate * top of lofs. In order to keep on using the lofs version of 769*0Sstevel@tonic-gate * VOP_RENAME(), we make sure that while the target directory is of type 770*0Sstevel@tonic-gate * lofs, the source directory (the one used for getting the fs-specific 771*0Sstevel@tonic-gate * version of VOP_RENAME()) is also of type lofs. 772*0Sstevel@tonic-gate */ 773*0Sstevel@tonic-gate if (vn_matchops(ndvp, lo_vnodeops)) { 774*0Sstevel@tonic-gate if (IS_ZONEDEVFS(ndvp)) 775*0Sstevel@tonic-gate return (EACCES); 776*0Sstevel@tonic-gate ndvp = realvp(ndvp); /* Check the next layer */ 777*0Sstevel@tonic-gate } else { 778*0Sstevel@tonic-gate /* 779*0Sstevel@tonic-gate * We can go fast here 780*0Sstevel@tonic-gate */ 781*0Sstevel@tonic-gate while (vn_matchops(odvp, lo_vnodeops)) { 782*0Sstevel@tonic-gate if (IS_ZONEDEVFS(odvp)) 783*0Sstevel@tonic-gate return (EACCES); 784*0Sstevel@tonic-gate odvp = realvp(odvp); 785*0Sstevel@tonic-gate } 786*0Sstevel@tonic-gate if (odvp->v_vfsp != ndvp->v_vfsp) 787*0Sstevel@tonic-gate return (EXDEV); 788*0Sstevel@tonic-gate } 789*0Sstevel@tonic-gate return (VOP_RENAME(odvp, onm, ndvp, nnm, cr)); 790*0Sstevel@tonic-gate } 791*0Sstevel@tonic-gate 792*0Sstevel@tonic-gate static int 793*0Sstevel@tonic-gate lo_mkdir( 794*0Sstevel@tonic-gate vnode_t *dvp, 795*0Sstevel@tonic-gate char *nm, 796*0Sstevel@tonic-gate struct vattr *va, 797*0Sstevel@tonic-gate vnode_t **vpp, 798*0Sstevel@tonic-gate struct cred *cr) 799*0Sstevel@tonic-gate { 800*0Sstevel@tonic-gate int error; 801*0Sstevel@tonic-gate 802*0Sstevel@tonic-gate #ifdef LODEBUG 803*0Sstevel@tonic-gate lo_dprint(4, "lo_mkdir vp %p realvp %p\n", dvp, realvp(dvp)); 804*0Sstevel@tonic-gate #endif 805*0Sstevel@tonic-gate if (IS_ZONEDEVFS(dvp)) 806*0Sstevel@tonic-gate return (EACCES); 807*0Sstevel@tonic-gate error = VOP_MKDIR(realvp(dvp), nm, va, vpp, cr); 808*0Sstevel@tonic-gate if (!error) 809*0Sstevel@tonic-gate *vpp = makelonode(*vpp, vtoli(dvp->v_vfsp)); 810*0Sstevel@tonic-gate return (error); 811*0Sstevel@tonic-gate } 812*0Sstevel@tonic-gate 813*0Sstevel@tonic-gate static int 814*0Sstevel@tonic-gate lo_realvp(vnode_t *vp, vnode_t **vpp) 815*0Sstevel@tonic-gate { 816*0Sstevel@tonic-gate #ifdef LODEBUG 817*0Sstevel@tonic-gate lo_dprint(4, "lo_realvp %p\n", vp); 818*0Sstevel@tonic-gate #endif 819*0Sstevel@tonic-gate while (vn_matchops(vp, lo_vnodeops)) 820*0Sstevel@tonic-gate vp = realvp(vp); 821*0Sstevel@tonic-gate 822*0Sstevel@tonic-gate if (VOP_REALVP(vp, vpp) != 0) 823*0Sstevel@tonic-gate *vpp = vp; 824*0Sstevel@tonic-gate return (0); 825*0Sstevel@tonic-gate } 826*0Sstevel@tonic-gate 827*0Sstevel@tonic-gate static int 828*0Sstevel@tonic-gate lo_rmdir( 829*0Sstevel@tonic-gate vnode_t *dvp, 830*0Sstevel@tonic-gate char *nm, 831*0Sstevel@tonic-gate vnode_t *cdir, 832*0Sstevel@tonic-gate struct cred *cr) 833*0Sstevel@tonic-gate { 834*0Sstevel@tonic-gate vnode_t *rvp = cdir; 835*0Sstevel@tonic-gate 836*0Sstevel@tonic-gate #ifdef LODEBUG 837*0Sstevel@tonic-gate lo_dprint(4, "lo_rmdir vp %p realvp %p\n", dvp, realvp(dvp)); 838*0Sstevel@tonic-gate #endif 839*0Sstevel@tonic-gate if (IS_ZONEDEVFS(dvp)) 840*0Sstevel@tonic-gate return (EACCES); 841*0Sstevel@tonic-gate /* if cdir is lofs vnode ptr get its real vnode ptr */ 842*0Sstevel@tonic-gate if (vn_matchops(dvp, vn_getops(rvp))) 843*0Sstevel@tonic-gate (void) lo_realvp(cdir, &rvp); 844*0Sstevel@tonic-gate dvp = realvp(dvp); 845*0Sstevel@tonic-gate return (VOP_RMDIR(dvp, nm, rvp, cr)); 846*0Sstevel@tonic-gate } 847*0Sstevel@tonic-gate 848*0Sstevel@tonic-gate static int 849*0Sstevel@tonic-gate lo_symlink( 850*0Sstevel@tonic-gate vnode_t *dvp, 851*0Sstevel@tonic-gate char *lnm, 852*0Sstevel@tonic-gate struct vattr *tva, 853*0Sstevel@tonic-gate char *tnm, 854*0Sstevel@tonic-gate struct cred *cr) 855*0Sstevel@tonic-gate { 856*0Sstevel@tonic-gate #ifdef LODEBUG 857*0Sstevel@tonic-gate lo_dprint(4, "lo_symlink vp %p realvp %p\n", dvp, realvp(dvp)); 858*0Sstevel@tonic-gate #endif 859*0Sstevel@tonic-gate if (IS_ZONEDEVFS(dvp)) 860*0Sstevel@tonic-gate return (EACCES); 861*0Sstevel@tonic-gate dvp = realvp(dvp); 862*0Sstevel@tonic-gate return (VOP_SYMLINK(dvp, lnm, tva, tnm, cr)); 863*0Sstevel@tonic-gate } 864*0Sstevel@tonic-gate 865*0Sstevel@tonic-gate static int 866*0Sstevel@tonic-gate lo_readlink(vnode_t *vp, struct uio *uiop, struct cred *cr) 867*0Sstevel@tonic-gate { 868*0Sstevel@tonic-gate vp = realvp(vp); 869*0Sstevel@tonic-gate return (VOP_READLINK(vp, uiop, cr)); 870*0Sstevel@tonic-gate } 871*0Sstevel@tonic-gate 872*0Sstevel@tonic-gate static int 873*0Sstevel@tonic-gate lo_readdir(vnode_t *vp, struct uio *uiop, struct cred *cr, int *eofp) 874*0Sstevel@tonic-gate { 875*0Sstevel@tonic-gate #ifdef LODEBUG 876*0Sstevel@tonic-gate lo_dprint(4, "lo_readdir vp %p realvp %p\n", vp, realvp(vp)); 877*0Sstevel@tonic-gate #endif 878*0Sstevel@tonic-gate vp = realvp(vp); 879*0Sstevel@tonic-gate return (VOP_READDIR(vp, uiop, cr, eofp)); 880*0Sstevel@tonic-gate } 881*0Sstevel@tonic-gate 882*0Sstevel@tonic-gate static int 883*0Sstevel@tonic-gate lo_rwlock(vnode_t *vp, int write_lock, caller_context_t *ct) 884*0Sstevel@tonic-gate { 885*0Sstevel@tonic-gate vp = realvp(vp); 886*0Sstevel@tonic-gate return (VOP_RWLOCK(vp, write_lock, ct)); 887*0Sstevel@tonic-gate } 888*0Sstevel@tonic-gate 889*0Sstevel@tonic-gate static void 890*0Sstevel@tonic-gate lo_rwunlock(vnode_t *vp, int write_lock, caller_context_t *ct) 891*0Sstevel@tonic-gate { 892*0Sstevel@tonic-gate vp = realvp(vp); 893*0Sstevel@tonic-gate VOP_RWUNLOCK(vp, write_lock, ct); 894*0Sstevel@tonic-gate } 895*0Sstevel@tonic-gate 896*0Sstevel@tonic-gate static int 897*0Sstevel@tonic-gate lo_seek(vnode_t *vp, offset_t ooff, offset_t *noffp) 898*0Sstevel@tonic-gate { 899*0Sstevel@tonic-gate vp = realvp(vp); 900*0Sstevel@tonic-gate return (VOP_SEEK(vp, ooff, noffp)); 901*0Sstevel@tonic-gate } 902*0Sstevel@tonic-gate 903*0Sstevel@tonic-gate static int 904*0Sstevel@tonic-gate lo_cmp(vnode_t *vp1, vnode_t *vp2) 905*0Sstevel@tonic-gate { 906*0Sstevel@tonic-gate while (vn_matchops(vp1, lo_vnodeops)) 907*0Sstevel@tonic-gate vp1 = realvp(vp1); 908*0Sstevel@tonic-gate while (vn_matchops(vp2, lo_vnodeops)) 909*0Sstevel@tonic-gate vp2 = realvp(vp2); 910*0Sstevel@tonic-gate return (VOP_CMP(vp1, vp2)); 911*0Sstevel@tonic-gate } 912*0Sstevel@tonic-gate 913*0Sstevel@tonic-gate static int 914*0Sstevel@tonic-gate lo_frlock( 915*0Sstevel@tonic-gate vnode_t *vp, 916*0Sstevel@tonic-gate int cmd, 917*0Sstevel@tonic-gate struct flock64 *bfp, 918*0Sstevel@tonic-gate int flag, 919*0Sstevel@tonic-gate offset_t offset, 920*0Sstevel@tonic-gate struct flk_callback *flk_cbp, 921*0Sstevel@tonic-gate cred_t *cr) 922*0Sstevel@tonic-gate { 923*0Sstevel@tonic-gate vp = realvp(vp); 924*0Sstevel@tonic-gate return (VOP_FRLOCK(vp, cmd, bfp, flag, offset, flk_cbp, cr)); 925*0Sstevel@tonic-gate } 926*0Sstevel@tonic-gate 927*0Sstevel@tonic-gate static int 928*0Sstevel@tonic-gate lo_space( 929*0Sstevel@tonic-gate vnode_t *vp, 930*0Sstevel@tonic-gate int cmd, 931*0Sstevel@tonic-gate struct flock64 *bfp, 932*0Sstevel@tonic-gate int flag, 933*0Sstevel@tonic-gate offset_t offset, 934*0Sstevel@tonic-gate struct cred *cr, 935*0Sstevel@tonic-gate caller_context_t *ct) 936*0Sstevel@tonic-gate { 937*0Sstevel@tonic-gate vp = realvp(vp); 938*0Sstevel@tonic-gate return (VOP_SPACE(vp, cmd, bfp, flag, offset, cr, ct)); 939*0Sstevel@tonic-gate } 940*0Sstevel@tonic-gate 941*0Sstevel@tonic-gate static int 942*0Sstevel@tonic-gate lo_getpage( 943*0Sstevel@tonic-gate vnode_t *vp, 944*0Sstevel@tonic-gate offset_t off, 945*0Sstevel@tonic-gate size_t len, 946*0Sstevel@tonic-gate uint_t *prot, 947*0Sstevel@tonic-gate struct page *parr[], 948*0Sstevel@tonic-gate size_t psz, 949*0Sstevel@tonic-gate struct seg *seg, 950*0Sstevel@tonic-gate caddr_t addr, 951*0Sstevel@tonic-gate enum seg_rw rw, 952*0Sstevel@tonic-gate struct cred *cr) 953*0Sstevel@tonic-gate { 954*0Sstevel@tonic-gate vp = realvp(vp); 955*0Sstevel@tonic-gate return (VOP_GETPAGE(vp, off, len, prot, parr, psz, seg, addr, rw, cr)); 956*0Sstevel@tonic-gate } 957*0Sstevel@tonic-gate 958*0Sstevel@tonic-gate static int 959*0Sstevel@tonic-gate lo_putpage(vnode_t *vp, offset_t off, size_t len, int flags, struct cred *cr) 960*0Sstevel@tonic-gate { 961*0Sstevel@tonic-gate vp = realvp(vp); 962*0Sstevel@tonic-gate return (VOP_PUTPAGE(vp, off, len, flags, cr)); 963*0Sstevel@tonic-gate } 964*0Sstevel@tonic-gate 965*0Sstevel@tonic-gate static int 966*0Sstevel@tonic-gate lo_map( 967*0Sstevel@tonic-gate vnode_t *vp, 968*0Sstevel@tonic-gate offset_t off, 969*0Sstevel@tonic-gate struct as *as, 970*0Sstevel@tonic-gate caddr_t *addrp, 971*0Sstevel@tonic-gate size_t len, 972*0Sstevel@tonic-gate uchar_t prot, 973*0Sstevel@tonic-gate uchar_t maxprot, 974*0Sstevel@tonic-gate uint_t flags, 975*0Sstevel@tonic-gate struct cred *cr) 976*0Sstevel@tonic-gate { 977*0Sstevel@tonic-gate vp = realvp(vp); 978*0Sstevel@tonic-gate return (VOP_MAP(vp, off, as, addrp, len, prot, maxprot, flags, cr)); 979*0Sstevel@tonic-gate } 980*0Sstevel@tonic-gate 981*0Sstevel@tonic-gate static int 982*0Sstevel@tonic-gate lo_addmap( 983*0Sstevel@tonic-gate vnode_t *vp, 984*0Sstevel@tonic-gate offset_t off, 985*0Sstevel@tonic-gate struct as *as, 986*0Sstevel@tonic-gate caddr_t addr, 987*0Sstevel@tonic-gate size_t len, 988*0Sstevel@tonic-gate uchar_t prot, 989*0Sstevel@tonic-gate uchar_t maxprot, 990*0Sstevel@tonic-gate uint_t flags, 991*0Sstevel@tonic-gate struct cred *cr) 992*0Sstevel@tonic-gate { 993*0Sstevel@tonic-gate vp = realvp(vp); 994*0Sstevel@tonic-gate return (VOP_ADDMAP(vp, off, as, addr, len, prot, maxprot, flags, cr)); 995*0Sstevel@tonic-gate } 996*0Sstevel@tonic-gate 997*0Sstevel@tonic-gate static int 998*0Sstevel@tonic-gate lo_delmap( 999*0Sstevel@tonic-gate vnode_t *vp, 1000*0Sstevel@tonic-gate offset_t off, 1001*0Sstevel@tonic-gate struct as *as, 1002*0Sstevel@tonic-gate caddr_t addr, 1003*0Sstevel@tonic-gate size_t len, 1004*0Sstevel@tonic-gate uint_t prot, 1005*0Sstevel@tonic-gate uint_t maxprot, 1006*0Sstevel@tonic-gate uint_t flags, 1007*0Sstevel@tonic-gate struct cred *cr) 1008*0Sstevel@tonic-gate { 1009*0Sstevel@tonic-gate vp = realvp(vp); 1010*0Sstevel@tonic-gate return (VOP_DELMAP(vp, off, as, addr, len, prot, maxprot, flags, cr)); 1011*0Sstevel@tonic-gate } 1012*0Sstevel@tonic-gate 1013*0Sstevel@tonic-gate static int 1014*0Sstevel@tonic-gate lo_poll( 1015*0Sstevel@tonic-gate vnode_t *vp, 1016*0Sstevel@tonic-gate short events, 1017*0Sstevel@tonic-gate int anyyet, 1018*0Sstevel@tonic-gate short *reventsp, 1019*0Sstevel@tonic-gate struct pollhead **phpp) 1020*0Sstevel@tonic-gate { 1021*0Sstevel@tonic-gate vp = realvp(vp); 1022*0Sstevel@tonic-gate return (VOP_POLL(vp, events, anyyet, reventsp, phpp)); 1023*0Sstevel@tonic-gate } 1024*0Sstevel@tonic-gate 1025*0Sstevel@tonic-gate static int 1026*0Sstevel@tonic-gate lo_dump(vnode_t *vp, caddr_t addr, int bn, int count) 1027*0Sstevel@tonic-gate { 1028*0Sstevel@tonic-gate vp = realvp(vp); 1029*0Sstevel@tonic-gate return (VOP_DUMP(vp, addr, bn, count)); 1030*0Sstevel@tonic-gate } 1031*0Sstevel@tonic-gate 1032*0Sstevel@tonic-gate static int 1033*0Sstevel@tonic-gate lo_pathconf(vnode_t *vp, int cmd, ulong_t *valp, struct cred *cr) 1034*0Sstevel@tonic-gate { 1035*0Sstevel@tonic-gate vp = realvp(vp); 1036*0Sstevel@tonic-gate return (VOP_PATHCONF(vp, cmd, valp, cr)); 1037*0Sstevel@tonic-gate } 1038*0Sstevel@tonic-gate 1039*0Sstevel@tonic-gate static int 1040*0Sstevel@tonic-gate lo_pageio( 1041*0Sstevel@tonic-gate vnode_t *vp, 1042*0Sstevel@tonic-gate struct page *pp, 1043*0Sstevel@tonic-gate u_offset_t io_off, 1044*0Sstevel@tonic-gate size_t io_len, 1045*0Sstevel@tonic-gate int flags, 1046*0Sstevel@tonic-gate cred_t *cr) 1047*0Sstevel@tonic-gate { 1048*0Sstevel@tonic-gate vp = realvp(vp); 1049*0Sstevel@tonic-gate return (VOP_PAGEIO(vp, pp, io_off, io_len, flags, cr)); 1050*0Sstevel@tonic-gate } 1051*0Sstevel@tonic-gate 1052*0Sstevel@tonic-gate static void 1053*0Sstevel@tonic-gate lo_dispose(vnode_t *vp, page_t *pp, int fl, int dn, cred_t *cr) 1054*0Sstevel@tonic-gate { 1055*0Sstevel@tonic-gate vp = realvp(vp); 1056*0Sstevel@tonic-gate if (vp != NULL && vp != &kvp) 1057*0Sstevel@tonic-gate VOP_DISPOSE(vp, pp, fl, dn, cr); 1058*0Sstevel@tonic-gate } 1059*0Sstevel@tonic-gate 1060*0Sstevel@tonic-gate static int 1061*0Sstevel@tonic-gate lo_setsecattr(vnode_t *vp, vsecattr_t *secattr, int flags, struct cred *cr) 1062*0Sstevel@tonic-gate { 1063*0Sstevel@tonic-gate if (vn_is_readonly(vp)) 1064*0Sstevel@tonic-gate return (EROFS); 1065*0Sstevel@tonic-gate vp = realvp(vp); 1066*0Sstevel@tonic-gate return (VOP_SETSECATTR(vp, secattr, flags, cr)); 1067*0Sstevel@tonic-gate } 1068*0Sstevel@tonic-gate 1069*0Sstevel@tonic-gate static int 1070*0Sstevel@tonic-gate lo_getsecattr(vnode_t *vp, vsecattr_t *secattr, int flags, struct cred *cr) 1071*0Sstevel@tonic-gate { 1072*0Sstevel@tonic-gate vp = realvp(vp); 1073*0Sstevel@tonic-gate return (VOP_GETSECATTR(vp, secattr, flags, cr)); 1074*0Sstevel@tonic-gate } 1075*0Sstevel@tonic-gate 1076*0Sstevel@tonic-gate static int 1077*0Sstevel@tonic-gate lo_shrlock(vnode_t *vp, int cmd, struct shrlock *shr, int flag, cred_t *cr) 1078*0Sstevel@tonic-gate { 1079*0Sstevel@tonic-gate vp = realvp(vp); 1080*0Sstevel@tonic-gate return (VOP_SHRLOCK(vp, cmd, shr, flag, cr)); 1081*0Sstevel@tonic-gate } 1082*0Sstevel@tonic-gate 1083*0Sstevel@tonic-gate /* 1084*0Sstevel@tonic-gate * Loopback vnode operations vector. 1085*0Sstevel@tonic-gate */ 1086*0Sstevel@tonic-gate 1087*0Sstevel@tonic-gate struct vnodeops *lo_vnodeops; 1088*0Sstevel@tonic-gate 1089*0Sstevel@tonic-gate const fs_operation_def_t lo_vnodeops_template[] = { 1090*0Sstevel@tonic-gate VOPNAME_OPEN, lo_open, 1091*0Sstevel@tonic-gate VOPNAME_CLOSE, lo_close, 1092*0Sstevel@tonic-gate VOPNAME_READ, lo_read, 1093*0Sstevel@tonic-gate VOPNAME_WRITE, lo_write, 1094*0Sstevel@tonic-gate VOPNAME_IOCTL, lo_ioctl, 1095*0Sstevel@tonic-gate VOPNAME_SETFL, lo_setfl, 1096*0Sstevel@tonic-gate VOPNAME_GETATTR, lo_getattr, 1097*0Sstevel@tonic-gate VOPNAME_SETATTR, lo_setattr, 1098*0Sstevel@tonic-gate VOPNAME_ACCESS, lo_access, 1099*0Sstevel@tonic-gate VOPNAME_LOOKUP, lo_lookup, 1100*0Sstevel@tonic-gate VOPNAME_CREATE, lo_create, 1101*0Sstevel@tonic-gate VOPNAME_REMOVE, lo_remove, 1102*0Sstevel@tonic-gate VOPNAME_LINK, lo_link, 1103*0Sstevel@tonic-gate VOPNAME_RENAME, lo_rename, 1104*0Sstevel@tonic-gate VOPNAME_MKDIR, lo_mkdir, 1105*0Sstevel@tonic-gate VOPNAME_RMDIR, lo_rmdir, 1106*0Sstevel@tonic-gate VOPNAME_READDIR, lo_readdir, 1107*0Sstevel@tonic-gate VOPNAME_SYMLINK, lo_symlink, 1108*0Sstevel@tonic-gate VOPNAME_READLINK, lo_readlink, 1109*0Sstevel@tonic-gate VOPNAME_FSYNC, lo_fsync, 1110*0Sstevel@tonic-gate VOPNAME_INACTIVE, (fs_generic_func_p) lo_inactive, 1111*0Sstevel@tonic-gate VOPNAME_FID, lo_fid, 1112*0Sstevel@tonic-gate VOPNAME_RWLOCK, lo_rwlock, 1113*0Sstevel@tonic-gate VOPNAME_RWUNLOCK, (fs_generic_func_p) lo_rwunlock, 1114*0Sstevel@tonic-gate VOPNAME_SEEK, lo_seek, 1115*0Sstevel@tonic-gate VOPNAME_CMP, lo_cmp, 1116*0Sstevel@tonic-gate VOPNAME_FRLOCK, lo_frlock, 1117*0Sstevel@tonic-gate VOPNAME_SPACE, lo_space, 1118*0Sstevel@tonic-gate VOPNAME_REALVP, lo_realvp, 1119*0Sstevel@tonic-gate VOPNAME_GETPAGE, lo_getpage, 1120*0Sstevel@tonic-gate VOPNAME_PUTPAGE, lo_putpage, 1121*0Sstevel@tonic-gate VOPNAME_MAP, (fs_generic_func_p) lo_map, 1122*0Sstevel@tonic-gate VOPNAME_ADDMAP, (fs_generic_func_p) lo_addmap, 1123*0Sstevel@tonic-gate VOPNAME_DELMAP, lo_delmap, 1124*0Sstevel@tonic-gate VOPNAME_POLL, (fs_generic_func_p) lo_poll, 1125*0Sstevel@tonic-gate VOPNAME_DUMP, lo_dump, 1126*0Sstevel@tonic-gate VOPNAME_DUMPCTL, fs_error, /* XXX - why? */ 1127*0Sstevel@tonic-gate VOPNAME_PATHCONF, lo_pathconf, 1128*0Sstevel@tonic-gate VOPNAME_PAGEIO, lo_pageio, 1129*0Sstevel@tonic-gate VOPNAME_DISPOSE, (fs_generic_func_p) lo_dispose, 1130*0Sstevel@tonic-gate VOPNAME_SETSECATTR, lo_setsecattr, 1131*0Sstevel@tonic-gate VOPNAME_GETSECATTR, lo_getsecattr, 1132*0Sstevel@tonic-gate VOPNAME_SHRLOCK, lo_shrlock, 1133*0Sstevel@tonic-gate NULL, NULL 1134*0Sstevel@tonic-gate }; 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