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 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <smbsrv/smb_incl.h> 27 28 29 /* 30 * Close a file by fid. All locks or other resources held by the 31 * requesting process on the file should be released by the server. 32 * The requesting process can no longer use the fid for further 33 * file access requests. 34 * 35 * If LastWriteTime is non-zero, it should be used to set the file 36 * timestamp. Otherwise, file system should set the timestamp. 37 * Failure to set the timestamp, even if requested by the client, 38 * should not result in an error response from the server. 39 */ 40 smb_sdrc_t 41 smb_pre_close(smb_request_t *sr) 42 { 43 int rc; 44 45 rc = smbsr_decode_vwv(sr, "wl", &sr->smb_fid, &sr->arg.timestamp); 46 47 DTRACE_SMB_1(op__Close__start, smb_request_t *, sr); 48 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR); 49 } 50 51 void 52 smb_post_close(smb_request_t *sr) 53 { 54 DTRACE_SMB_1(op__Close__done, smb_request_t *, sr); 55 } 56 57 smb_sdrc_t 58 smb_com_close(smb_request_t *sr) 59 { 60 smbsr_lookup_file(sr); 61 if (sr->fid_ofile == NULL) { 62 smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid); 63 return (SDRC_ERROR); 64 } 65 66 smb_ofile_close(sr->fid_ofile, sr->arg.timestamp); 67 68 if (smbsr_encode_empty_result(sr) != 0) 69 return (SDRC_ERROR); 70 71 return (SDRC_SUCCESS); 72 } 73 74 /* 75 * Close the file represented by fid and then disconnect the 76 * associated tree. 77 */ 78 smb_sdrc_t 79 smb_pre_close_and_tree_disconnect(smb_request_t *sr) 80 { 81 int rc; 82 83 rc = smbsr_decode_vwv(sr, "wl", &sr->smb_fid, &sr->arg.timestamp); 84 85 DTRACE_SMB_1(op__CloseAndTreeDisconnect__start, smb_request_t *, sr); 86 return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR); 87 } 88 89 void 90 smb_post_close_and_tree_disconnect(smb_request_t *sr) 91 { 92 DTRACE_SMB_1(op__CloseAndTreeDisconnect__done, smb_request_t *, sr); 93 } 94 95 smb_sdrc_t 96 smb_com_close_and_tree_disconnect(smb_request_t *sr) 97 { 98 smbsr_lookup_file(sr); 99 if (sr->fid_ofile == NULL) { 100 smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid); 101 return (SDRC_ERROR); 102 } 103 104 smb_ofile_close(sr->fid_ofile, sr->arg.timestamp); 105 smb_session_cancel_requests(sr->session, sr->tid_tree, sr); 106 smb_tree_disconnect(sr->tid_tree); 107 108 if (smbsr_encode_empty_result(sr) != 0) 109 return (SDRC_ERROR); 110 111 return (SDRC_SUCCESS); 112 } 113 114 /* 115 * smb_commit_delete_on_close() 116 * 117 * Check for the DeleteOnClose flag on the smb file and set it on the 118 * smb node if it is not already set. This will inhibit subsequent 119 * open requests. The delete-on-close credentials should be set to the 120 * user credentials of the current open file instance. 121 * 122 * When DeleteOnClose is set on an smb_node, the common open code will 123 * reject subsequent open requests for the file. Observation of Windows 124 * 2000 indicates that subsequent opens should be allowed (assuming 125 * there would be no sharing violation) until the file is closed using 126 * the fid on which the DeleteOnClose was requested. 127 * 128 * If there are multiple opens with delete-on-close create options, 129 * whichever the first file handle is closed will trigger the node to be 130 * marked as delete-on-close. The credentials of that ofile will be used 131 * as the delete-on-close credentials of the node. 132 */ 133 void 134 smb_commit_delete_on_close(struct smb_ofile *ofile) 135 { 136 struct smb_node *node = ofile->f_node; 137 138 if (!(node->flags & NODE_FLAGS_DELETE_ON_CLOSE) && 139 (ofile->f_flags & SMB_OFLAGS_SET_DELETE_ON_CLOSE)) { 140 node->flags |= NODE_FLAGS_DELETE_ON_CLOSE; 141 crhold(node->delete_on_close_cred = ofile->f_cr); 142 } 143 } 144