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 /* 23 * Copyright (c) 1994, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright 2017 Nexenta Systems, Inc. All rights reserved. 25 */ 26 27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * Portions of this source code were derived from Berkeley 4.3 BSD 32 * under license from the Regents of the University of California. 33 */ 34 35 /* 36 * Modified version of syscall/unlink.c 37 */ 38 39 #include <sys/param.h> 40 #include <sys/isa_defs.h> 41 #include <sys/types.h> 42 #include <sys/sysmacros.h> 43 #include <sys/systm.h> 44 #include <sys/errno.h> 45 #include <sys/vnode.h> 46 #include <sys/vfs.h> 47 #include <sys/uio.h> 48 #include <sys/debug.h> 49 #include <sys/file.h> 50 #include <sys/fcntl.h> 51 52 #include <libfksmbfs.h> 53 54 /* 55 * Unlink a file from a directory 56 * Like syscall/unlinkat.c 57 */ 58 int 59 fake_unlink(char *path, int flags) 60 { 61 vnode_t *dvp = NULL; 62 char *lastcomp = NULL; 63 int error; 64 65 if (path == NULL) 66 return (EFAULT); 67 68 error = fake_lookup_dir(path, &dvp, &lastcomp); 69 if (error != 0) 70 return (error); 71 72 /* 73 * Some logic from vn_removeat() here 74 */ 75 if (dvp->v_vfsp->vfs_flag & VFS_RDONLY) { 76 error = EROFS; 77 goto out; 78 } 79 80 if (flags == AT_REMOVEDIR) { 81 error = VOP_RMDIR(dvp, lastcomp, NULL, CRED(), NULL, 0); 82 } else { 83 error = VOP_REMOVE(dvp, lastcomp, CRED(), NULL, 0); 84 } 85 86 out: 87 if (dvp != NULL) 88 VN_RELE(dvp); 89 90 return (error); 91 } 92