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 smb_sdrc_t 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 return (SDRC_ERROR_REPLY); 51 52 sr->fid_ofile = smb_ofile_lookup_by_fid(sr->tid_tree, sr->smb_fid); 53 if (sr->fid_ofile == NULL) { 54 smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid); 55 return (SDRC_ERROR_REPLY); 56 } 57 58 rc = smb_common_close(sr, last_wtime); 59 if (rc) { 60 smbsr_errno(sr, rc); 61 return (SDRC_ERROR_REPLY); 62 } 63 64 rc = smbsr_encode_empty_result(sr); 65 return ((rc == 0) ? SDRC_NORMAL_REPLY : SDRC_ERROR_REPLY); 66 } 67 68 /* 69 * Close the file represented by fid and then disconnect the 70 * associated tree. 71 */ 72 smb_sdrc_t 73 smb_com_close_and_tree_disconnect(struct smb_request *sr) 74 { 75 uint32_t last_wtime; 76 int rc = 0; 77 78 rc = smbsr_decode_vwv(sr, "wl", &sr->smb_fid, &last_wtime); 79 if (rc != 0) 80 return (SDRC_ERROR_REPLY); 81 82 sr->fid_ofile = smb_ofile_lookup_by_fid(sr->tid_tree, sr->smb_fid); 83 if (sr->fid_ofile == NULL) { 84 smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid); 85 return (SDRC_ERROR_REPLY); 86 } 87 88 rc = smb_common_close(sr, last_wtime); 89 smbsr_rq_notify(sr, sr->session, sr->tid_tree); 90 smb_tree_disconnect(sr->tid_tree); 91 92 if (rc) { 93 smbsr_errno(sr, rc); 94 return (SDRC_ERROR_REPLY); 95 } 96 97 rc = smbsr_encode_empty_result(sr); 98 return ((rc == 0) ? SDRC_NORMAL_REPLY : SDRC_ERROR_REPLY); 99 } 100 101 /* 102 * smb_common_close 103 * 104 * Common close function called by SmbClose, SmbWriteAndClose, 105 * and SMBCloseAndTreeDisconnect. 106 */ 107 int 108 smb_common_close(struct smb_request *sr, uint32_t last_wtime) 109 { 110 return (smb_ofile_close(sr->fid_ofile, last_wtime)); 111 } 112 113 /* 114 * smb_commit_delete_on_close() 115 * 116 * Check for the DeleteOnClose flag on the smb file and set it on the 117 * smb node if it is not already set. This will inhibit subsequent 118 * open requests. The delete-on-close credentials should be set to the 119 * user credentials of the current open file instance. 120 * 121 * When DeleteOnClose is set on an smb_node, the common open code will 122 * reject subsequent open requests for the file. Observation of Windows 123 * 2000 indicates that subsequent opens should be allowed (assuming 124 * there would be no sharing violation) until the file is closed using 125 * the fid on which the DeleteOnClose was requested. 126 * 127 * If there are multiple opens with delete-on-close create options, 128 * whichever the first file handle is closed will trigger the node to be 129 * marked as delete-on-close. The credentials of that ofile will be used 130 * as the delete-on-close credentials of the node. 131 */ 132 void 133 smb_commit_delete_on_close(struct smb_ofile *ofile) 134 { 135 struct smb_node *node = ofile->f_node; 136 137 if (!(node->flags & NODE_FLAGS_DELETE_ON_CLOSE) && 138 (ofile->f_flags & SMB_OFLAGS_SET_DELETE_ON_CLOSE)) { 139 node->flags |= NODE_FLAGS_DELETE_ON_CLOSE; 140 crhold(node->delete_on_close_cred = ofile->f_cr); 141 } 142 } 143