1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <sys/errno.h> 29 #include <sys/file.h> 30 #include <sys/objfs.h> 31 #include <sys/objfs_impl.h> 32 33 /* 34 * For directories, make sure we are using large-file aware interfaces and we 35 * aren't trying to open it writeable. 36 */ 37 /* ARGSUSED */ 38 int 39 objfs_dir_open(vnode_t **cpp, int flag, cred_t *cr, 40 caller_context_t *ct) 41 { 42 if ((flag & (FOFFMAX | FWRITE)) != FOFFMAX) 43 return (EINVAL); 44 45 return (0); 46 } 47 48 /* 49 * For all vnodes which have no cleanup to do at close time. 50 */ 51 /* ARGSUSED */ 52 int 53 objfs_common_close(vnode_t *vp, int flag, int count, offset_t off, cred_t *cr, 54 caller_context_t *ct) 55 { 56 return (0); 57 } 58 59 /* 60 * For directories, ensure we're not open for writing. 61 */ 62 /* ARGSUSED */ 63 int 64 objfs_dir_access(vnode_t *vp, int mode, int flags, cred_t *cr, 65 caller_context_t *ct) 66 { 67 if (mode & VWRITE) 68 return (EACCES); 69 70 return (0); 71 } 72 73 /* 74 * Fills in common fields for getattr(). 75 */ 76 int 77 objfs_common_getattr(vnode_t *vp, vattr_t *vap) 78 { 79 vap->va_uid = 0; 80 vap->va_gid = 0; 81 vap->va_rdev = 0; 82 vap->va_blksize = DEV_BSIZE; 83 vap->va_nblocks = howmany(vap->va_size, vap->va_blksize); 84 vap->va_seq = 0; 85 vap->va_fsid = vp->v_vfsp->vfs_dev; 86 87 return (0); 88 } 89 90 /* 91 * Returns the number objects currently loaded in the system. 92 */ 93 int 94 objfs_nobjs(void) 95 { 96 int count = 0; 97 struct modctl *mp; 98 99 mutex_enter(&mod_lock); 100 mp = &modules; 101 102 do { 103 if (mp->mod_loaded) 104 count++; 105 } while ((mp = mp->mod_next) != &modules); 106 107 mutex_exit(&mod_lock); 108 109 return (count); 110 } 111