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 2008 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_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid); 57 /* NOTREACHED */ 58 } 59 60 rc = smb_common_close(sr, last_wtime); 61 if (rc) { 62 smbsr_errno(sr, rc); 63 /* NOTREACHED */ 64 } 65 66 smbsr_encode_empty_result(sr); 67 return (SDRC_NORMAL_REPLY); 68 } 69 70 /* 71 * Close the file represented by fid and then disconnect the 72 * associated tree. 73 */ 74 int 75 smb_com_close_and_tree_disconnect(struct smb_request *sr) 76 { 77 uint32_t last_wtime; 78 int rc = 0; 79 80 rc = smbsr_decode_vwv(sr, "wl", &sr->smb_fid, &last_wtime); 81 if (rc != 0) { 82 smbsr_decode_error(sr); 83 /* NOTREACHED */ 84 } 85 86 sr->fid_ofile = smb_ofile_lookup_by_fid(sr->tid_tree, sr->smb_fid); 87 if (sr->fid_ofile == NULL) { 88 smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid); 89 /* NOTREACHED */ 90 } 91 92 rc = smb_common_close(sr, last_wtime); 93 smbsr_rq_notify(sr, sr->session, sr->tid_tree); 94 smb_tree_disconnect(sr->tid_tree); 95 96 if (rc) { 97 smbsr_errno(sr, rc); 98 /* NOTREACHED */ 99 } 100 101 smbsr_encode_empty_result(sr); 102 return (SDRC_NORMAL_REPLY); 103 } 104 105 /* 106 * smb_common_close 107 * 108 * Common close function called by SmbClose, SmbWriteAndClose, 109 * and SMBCloseAndTreeDisconnect. 110 */ 111 int 112 smb_common_close(struct smb_request *sr, uint32_t last_wtime) 113 { 114 return (smb_ofile_close(sr->fid_ofile, last_wtime)); 115 } 116 117 /* 118 * smb_commit_delete_on_close() 119 * 120 * Check for the DeleteOnClose flag on the smb file and set it on the 121 * smb node if it is not already set. This will inhibit subsequent 122 * open requests. The delete-on-close credentials should be set to the 123 * user credentials of the current open file instance. 124 * 125 * When DeleteOnClose is set on an smb_node, the common open code will 126 * reject subsequent open requests for the file. Observation of Windows 127 * 2000 indicates that subsequent opens should be allowed (assuming 128 * there would be no sharing violation) until the file is closed using 129 * the fid on which the DeleteOnClose was requested. 130 * 131 * If there are multiple opens with delete-on-close create options, 132 * whichever the first file handle is closed will trigger the node to be 133 * marked as delete-on-close. The credentials of that ofile will be used 134 * as the delete-on-close credentials of the node. 135 */ 136 void 137 smb_commit_delete_on_close(struct smb_ofile *ofile) 138 { 139 struct smb_node *node = ofile->f_node; 140 141 if (!(node->flags & NODE_FLAGS_DELETE_ON_CLOSE) && 142 (ofile->f_flags & SMB_OFLAGS_SET_DELETE_ON_CLOSE)) { 143 node->flags |= NODE_FLAGS_DELETE_ON_CLOSE; 144 crhold(node->delete_on_close_cred = ofile->f_cr); 145 } 146 } 147