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 <smbsrv/smb_incl.h> 29 30 31 /* 32 * Close a file by fid. All locks or other resources held by the 33 * requesting process on the file should be released by the server. 34 * The requesting process can no longer use the fid for further 35 * file access requests. 36 * 37 * If LastWriteTime is non-zero, it should be used to set the file 38 * timestamp. Otherwise, file system should set the timestamp. 39 * Failure to set the timestamp, even if requested by the client, 40 * should not result in an error response from the server. 41 */ 42 int 43 smb_com_close(struct smb_request *sr) 44 { 45 uint32_t last_wtime; 46 int rc = 0; 47 48 rc = smbsr_decode_vwv(sr, "wl", &sr->smb_fid, &last_wtime); 49 if (rc != 0) { 50 smbsr_decode_error(sr); 51 /* NOTREACHED */ 52 } 53 54 sr->fid_ofile = smb_ofile_lookup_by_fid(sr->tid_tree, sr->smb_fid); 55 if (sr->fid_ofile == NULL) { 56 smbsr_raise_cifs_error(sr, NT_STATUS_INVALID_HANDLE, 57 ERRDOS, ERRbadfid); 58 /* NOTREACHED */ 59 } 60 61 rc = smb_common_close(sr, last_wtime); 62 if (rc) { 63 smbsr_raise_errno(sr, rc); 64 /* NOTREACHED */ 65 } 66 67 smbsr_encode_empty_result(sr); 68 return (SDRC_NORMAL_REPLY); 69 } 70 71 /* 72 * Close the file represented by fid and then disconnect the 73 * associated tree. 74 */ 75 int 76 smb_com_close_and_tree_disconnect(struct smb_request *sr) 77 { 78 uint32_t last_wtime; 79 int rc = 0; 80 81 rc = smbsr_decode_vwv(sr, "wl", &sr->smb_fid, &last_wtime); 82 if (rc != 0) { 83 smbsr_decode_error(sr); 84 /* NOTREACHED */ 85 } 86 87 sr->fid_ofile = smb_ofile_lookup_by_fid(sr->tid_tree, sr->smb_fid); 88 if (sr->fid_ofile == NULL) { 89 smbsr_raise_cifs_error(sr, NT_STATUS_INVALID_HANDLE, 90 ERRDOS, ERRbadfid); 91 /* NOTREACHED */ 92 } 93 94 rc = smb_common_close(sr, last_wtime); 95 smbsr_rq_notify(sr, sr->session, sr->tid_tree); 96 smb_tree_disconnect(sr->tid_tree); 97 98 if (rc) { 99 smbsr_raise_errno(sr, rc); 100 /* NOTREACHED */ 101 } 102 103 smbsr_encode_empty_result(sr); 104 return (SDRC_NORMAL_REPLY); 105 } 106 107 /* 108 * smb_common_close 109 * 110 * Common close function called by SmbClose, SmbWriteAndClose, 111 * and SMBCloseAndTreeDisconnect. 112 */ 113 int 114 smb_common_close(struct smb_request *sr, uint32_t last_wtime) 115 { 116 return (smb_ofile_close(sr->fid_ofile, last_wtime)); 117 } 118 119 /* 120 * smb_commit_delete_on_close() 121 * 122 * Check for the DeleteOnClose flag on the smb file and set it on the 123 * smb node if it is not already set. This will inhibit subsequent 124 * open requests. The delete-on-close credentials should be set to the 125 * user credentials of the current open file instance. 126 * 127 * When DeleteOnClose is set on an smb_node, the common open code will 128 * reject subsequent open requests for the file. Observation of Windows 129 * 2000 indicates that subsequent opens should be allowed (assuming 130 * there would be no sharing violation) until the file is closed using 131 * the fid on which the DeleteOnClose was requested. 132 * 133 * If there are multiple opens with delete-on-close create options, 134 * whichever the first file handle is closed will trigger the node to be 135 * marked as delete-on-close. The credentials of that ofile will be used 136 * as the delete-on-close credentials of the node. 137 */ 138 void 139 smb_commit_delete_on_close(struct smb_ofile *ofile) 140 { 141 struct smb_node *node = ofile->f_node; 142 143 if (!(node->flags & NODE_FLAGS_DELETE_ON_CLOSE) && 144 (ofile->f_flags & SMB_OFLAGS_SET_DELETE_ON_CLOSE)) { 145 node->flags |= NODE_FLAGS_DELETE_ON_CLOSE; 146 crhold(node->delete_on_close_cred = ofile->f_cr); 147 } 148 } 149