1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*7c478bd9Sstevel@tonic-gate 29*7c478bd9Sstevel@tonic-gate #include <sys/t_lock.h> 30*7c478bd9Sstevel@tonic-gate #include <sys/param.h> 31*7c478bd9Sstevel@tonic-gate #include <sys/systm.h> 32*7c478bd9Sstevel@tonic-gate #include <sys/signal.h> 33*7c478bd9Sstevel@tonic-gate #include <sys/cred.h> 34*7c478bd9Sstevel@tonic-gate #include <sys/proc.h> 35*7c478bd9Sstevel@tonic-gate #include <sys/disp.h> 36*7c478bd9Sstevel@tonic-gate #include <sys/user.h> 37*7c478bd9Sstevel@tonic-gate #include <sys/vfs.h> 38*7c478bd9Sstevel@tonic-gate #include <sys/vnode.h> 39*7c478bd9Sstevel@tonic-gate #include <sys/stat.h> 40*7c478bd9Sstevel@tonic-gate #include <sys/mode.h> 41*7c478bd9Sstevel@tonic-gate #include <sys/buf.h> 42*7c478bd9Sstevel@tonic-gate #include <sys/uio.h> 43*7c478bd9Sstevel@tonic-gate #include <sys/dnlc.h> 44*7c478bd9Sstevel@tonic-gate #include <sys/pathname.h> 45*7c478bd9Sstevel@tonic-gate #include <sys/fs/ufs_inode.h> 46*7c478bd9Sstevel@tonic-gate #include <sys/fs/ufs_fs.h> 47*7c478bd9Sstevel@tonic-gate #include <sys/mount.h> 48*7c478bd9Sstevel@tonic-gate #include <sys/fs/ufs_fsdir.h> 49*7c478bd9Sstevel@tonic-gate #include <sys/fs/ufs_trans.h> 50*7c478bd9Sstevel@tonic-gate #include <sys/fs/ufs_panic.h> 51*7c478bd9Sstevel@tonic-gate #include <sys/fs/ufs_quota.h> 52*7c478bd9Sstevel@tonic-gate #include <sys/errno.h> 53*7c478bd9Sstevel@tonic-gate #include <sys/debug.h> 54*7c478bd9Sstevel@tonic-gate #include <vm/seg.h> 55*7c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h> 56*7c478bd9Sstevel@tonic-gate #include <sys/cmn_err.h> 57*7c478bd9Sstevel@tonic-gate #include <sys/cpuvar.h> 58*7c478bd9Sstevel@tonic-gate #include <sys/unistd.h> 59*7c478bd9Sstevel@tonic-gate 60*7c478bd9Sstevel@tonic-gate int 61*7c478bd9Sstevel@tonic-gate ufs_xattr_getattrdir( 62*7c478bd9Sstevel@tonic-gate vnode_t *dvp, 63*7c478bd9Sstevel@tonic-gate struct inode **sip, 64*7c478bd9Sstevel@tonic-gate int flags, 65*7c478bd9Sstevel@tonic-gate struct cred *cr) 66*7c478bd9Sstevel@tonic-gate { 67*7c478bd9Sstevel@tonic-gate struct vfs *vfsp; 68*7c478bd9Sstevel@tonic-gate struct inode *ip, *sdp; 69*7c478bd9Sstevel@tonic-gate int error; 70*7c478bd9Sstevel@tonic-gate 71*7c478bd9Sstevel@tonic-gate ip = VTOI(dvp); 72*7c478bd9Sstevel@tonic-gate if (flags & LOOKUP_XATTR) { 73*7c478bd9Sstevel@tonic-gate if (ip && ((ip->i_oeftflag) != 0)) { 74*7c478bd9Sstevel@tonic-gate vfsp = dvp->v_vfsp; 75*7c478bd9Sstevel@tonic-gate 76*7c478bd9Sstevel@tonic-gate error = ufs_iget(vfsp, ip->i_oeftflag, sip, cr); 77*7c478bd9Sstevel@tonic-gate if (error) 78*7c478bd9Sstevel@tonic-gate return (error); 79*7c478bd9Sstevel@tonic-gate 80*7c478bd9Sstevel@tonic-gate sdp = *sip; 81*7c478bd9Sstevel@tonic-gate 82*7c478bd9Sstevel@tonic-gate /* 83*7c478bd9Sstevel@tonic-gate * Make sure it really is an ATTRDIR 84*7c478bd9Sstevel@tonic-gate */ 85*7c478bd9Sstevel@tonic-gate if ((sdp->i_mode & IFMT) != IFATTRDIR) { 86*7c478bd9Sstevel@tonic-gate cmn_err(CE_NOTE, "ufs_getattrdir: inode %d" 87*7c478bd9Sstevel@tonic-gate " points to attribute directory %d " 88*7c478bd9Sstevel@tonic-gate "which is not an attribute directory;" 89*7c478bd9Sstevel@tonic-gate "run fsck on file system", 90*7c478bd9Sstevel@tonic-gate (int)ip->i_number, (int)sdp->i_number); 91*7c478bd9Sstevel@tonic-gate VN_RELE(ITOV(sdp)); 92*7c478bd9Sstevel@tonic-gate return (ENOENT); 93*7c478bd9Sstevel@tonic-gate } 94*7c478bd9Sstevel@tonic-gate ITOV(sdp)->v_type = VDIR; 95*7c478bd9Sstevel@tonic-gate ITOV(sdp)->v_flag |= V_XATTRDIR; 96*7c478bd9Sstevel@tonic-gate error = 0; 97*7c478bd9Sstevel@tonic-gate goto out; 98*7c478bd9Sstevel@tonic-gate } else if (flags & CREATE_XATTR_DIR) { 99*7c478bd9Sstevel@tonic-gate error = ufs_xattrmkdir(ip, sip, 1, cr); 100*7c478bd9Sstevel@tonic-gate } else { 101*7c478bd9Sstevel@tonic-gate error = ENOENT; 102*7c478bd9Sstevel@tonic-gate goto out; 103*7c478bd9Sstevel@tonic-gate } 104*7c478bd9Sstevel@tonic-gate 105*7c478bd9Sstevel@tonic-gate } else if (flags & CREATE_XATTR_DIR) { 106*7c478bd9Sstevel@tonic-gate error = ufs_xattrmkdir(ip, sip, 1, cr); 107*7c478bd9Sstevel@tonic-gate } else { 108*7c478bd9Sstevel@tonic-gate error = ENOENT; 109*7c478bd9Sstevel@tonic-gate } 110*7c478bd9Sstevel@tonic-gate out: 111*7c478bd9Sstevel@tonic-gate return (error); 112*7c478bd9Sstevel@tonic-gate } 113*7c478bd9Sstevel@tonic-gate 114*7c478bd9Sstevel@tonic-gate 115*7c478bd9Sstevel@tonic-gate /* 116*7c478bd9Sstevel@tonic-gate * Unhook an attribute directory from a parent file/dir 117*7c478bd9Sstevel@tonic-gate * Only do so, if we are the only user of the vnode. 118*7c478bd9Sstevel@tonic-gate */ 119*7c478bd9Sstevel@tonic-gate void 120*7c478bd9Sstevel@tonic-gate ufs_unhook_shadow(struct inode *ip, struct inode *sip) 121*7c478bd9Sstevel@tonic-gate { 122*7c478bd9Sstevel@tonic-gate struct vnode *datavp = ITOV(ip); 123*7c478bd9Sstevel@tonic-gate struct vnode *dirvp = ITOV(sip); 124*7c478bd9Sstevel@tonic-gate int hno; 125*7c478bd9Sstevel@tonic-gate kmutex_t *ihm; 126*7c478bd9Sstevel@tonic-gate 127*7c478bd9Sstevel@tonic-gate ASSERT(RW_WRITE_HELD(&sip->i_contents)); 128*7c478bd9Sstevel@tonic-gate ASSERT(RW_WRITE_HELD(&ip->i_contents)); 129*7c478bd9Sstevel@tonic-gate 130*7c478bd9Sstevel@tonic-gate if (vn_is_readonly(ITOV(ip))) 131*7c478bd9Sstevel@tonic-gate return; 132*7c478bd9Sstevel@tonic-gate 133*7c478bd9Sstevel@tonic-gate if (ip->i_ufsvfs == NULL || sip->i_ufsvfs == NULL) 134*7c478bd9Sstevel@tonic-gate return; 135*7c478bd9Sstevel@tonic-gate 136*7c478bd9Sstevel@tonic-gate hno = INOHASH(ip->i_number); 137*7c478bd9Sstevel@tonic-gate ihm = &ih_lock[hno]; 138*7c478bd9Sstevel@tonic-gate mutex_enter(ihm); 139*7c478bd9Sstevel@tonic-gate 140*7c478bd9Sstevel@tonic-gate mutex_enter(&datavp->v_lock); 141*7c478bd9Sstevel@tonic-gate mutex_enter(&dirvp->v_lock); 142*7c478bd9Sstevel@tonic-gate 143*7c478bd9Sstevel@tonic-gate if (dirvp->v_count != 1 && datavp->v_count != 1) { 144*7c478bd9Sstevel@tonic-gate mutex_exit(&dirvp->v_lock); 145*7c478bd9Sstevel@tonic-gate mutex_exit(&datavp->v_lock); 146*7c478bd9Sstevel@tonic-gate mutex_exit(ihm); 147*7c478bd9Sstevel@tonic-gate return; 148*7c478bd9Sstevel@tonic-gate } 149*7c478bd9Sstevel@tonic-gate 150*7c478bd9Sstevel@tonic-gate /* 151*7c478bd9Sstevel@tonic-gate * Delete shadow from ip 152*7c478bd9Sstevel@tonic-gate */ 153*7c478bd9Sstevel@tonic-gate 154*7c478bd9Sstevel@tonic-gate sip->i_nlink -= 2; 155*7c478bd9Sstevel@tonic-gate ufs_setreclaim(sip); 156*7c478bd9Sstevel@tonic-gate TRANS_INODE(sip->i_ufsvfs, sip); 157*7c478bd9Sstevel@tonic-gate sip->i_flag |= ICHG; 158*7c478bd9Sstevel@tonic-gate sip->i_seq++; 159*7c478bd9Sstevel@tonic-gate ITIMES_NOLOCK(sip); 160*7c478bd9Sstevel@tonic-gate 161*7c478bd9Sstevel@tonic-gate /* 162*7c478bd9Sstevel@tonic-gate * Update src file 163*7c478bd9Sstevel@tonic-gate */ 164*7c478bd9Sstevel@tonic-gate ip->i_oeftflag = 0; 165*7c478bd9Sstevel@tonic-gate TRANS_INODE(ip->i_ufsvfs, ip); 166*7c478bd9Sstevel@tonic-gate ip->i_flag |= ICHG; 167*7c478bd9Sstevel@tonic-gate ip->i_seq++; 168*7c478bd9Sstevel@tonic-gate ufs_iupdat(ip, 1); 169*7c478bd9Sstevel@tonic-gate mutex_exit(&dirvp->v_lock); 170*7c478bd9Sstevel@tonic-gate mutex_exit(&datavp->v_lock); 171*7c478bd9Sstevel@tonic-gate mutex_exit(ihm); 172*7c478bd9Sstevel@tonic-gate } 173