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 "@(#)smb_close.c 1.6 08/08/08 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 smb_sdrc_t 43 smb_pre_close(smb_request_t *sr) 44 { 45 int rc; 46 47 rc = smbsr_decode_vwv(sr, "wl", &sr->smb_fid, &sr->arg.timestamp); 48 49 DTRACE_SMB_1(op__Close__start, smb_request_t *, sr); 50 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR); 51 } 52 53 void 54 smb_post_close(smb_request_t *sr) 55 { 56 DTRACE_SMB_1(op__Close__done, smb_request_t *, sr); 57 } 58 59 smb_sdrc_t 60 smb_com_close(smb_request_t *sr) 61 { 62 sr->fid_ofile = smb_ofile_lookup_by_fid(sr->tid_tree, sr->smb_fid); 63 if (sr->fid_ofile == NULL) { 64 smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid); 65 return (SDRC_ERROR); 66 } 67 68 smb_ofile_close(sr->fid_ofile, sr->arg.timestamp); 69 70 if (smbsr_encode_empty_result(sr) != 0) 71 return (SDRC_ERROR); 72 73 return (SDRC_SUCCESS); 74 } 75 76 /* 77 * Close the file represented by fid and then disconnect the 78 * associated tree. 79 */ 80 smb_sdrc_t 81 smb_pre_close_and_tree_disconnect(smb_request_t *sr) 82 { 83 int rc; 84 85 rc = smbsr_decode_vwv(sr, "wl", &sr->smb_fid, &sr->arg.timestamp); 86 87 DTRACE_SMB_1(op__CloseAndTreeDisconnect__start, smb_request_t *, sr); 88 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR); 89 } 90 91 void 92 smb_post_close_and_tree_disconnect(smb_request_t *sr) 93 { 94 DTRACE_SMB_1(op__CloseAndTreeDisconnect__done, smb_request_t *, sr); 95 } 96 97 smb_sdrc_t 98 smb_com_close_and_tree_disconnect(smb_request_t *sr) 99 { 100 sr->fid_ofile = smb_ofile_lookup_by_fid(sr->tid_tree, sr->smb_fid); 101 if (sr->fid_ofile == NULL) { 102 smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid); 103 return (SDRC_ERROR); 104 } 105 106 smb_ofile_close(sr->fid_ofile, sr->arg.timestamp); 107 smb_session_cancel_requests(sr->session, sr->tid_tree, sr); 108 smb_tree_disconnect(sr->tid_tree); 109 110 if (smbsr_encode_empty_result(sr) != 0) 111 return (SDRC_ERROR); 112 113 return (SDRC_SUCCESS); 114 } 115 116 /* 117 * smb_commit_delete_on_close() 118 * 119 * Check for the DeleteOnClose flag on the smb file and set it on the 120 * smb node if it is not already set. This will inhibit subsequent 121 * open requests. The delete-on-close credentials should be set to the 122 * user credentials of the current open file instance. 123 * 124 * When DeleteOnClose is set on an smb_node, the common open code will 125 * reject subsequent open requests for the file. Observation of Windows 126 * 2000 indicates that subsequent opens should be allowed (assuming 127 * there would be no sharing violation) until the file is closed using 128 * the fid on which the DeleteOnClose was requested. 129 * 130 * If there are multiple opens with delete-on-close create options, 131 * whichever the first file handle is closed will trigger the node to be 132 * marked as delete-on-close. The credentials of that ofile will be used 133 * as the delete-on-close credentials of the node. 134 */ 135 void 136 smb_commit_delete_on_close(struct smb_ofile *ofile) 137 { 138 struct smb_node *node = ofile->f_node; 139 140 if (!(node->flags & NODE_FLAGS_DELETE_ON_CLOSE) && 141 (ofile->f_flags & SMB_OFLAGS_SET_DELETE_ON_CLOSE)) { 142 node->flags |= NODE_FLAGS_DELETE_ON_CLOSE; 143 crhold(node->delete_on_close_cred = ofile->f_cr); 144 } 145 } 146