1*5331Samw /* 2*5331Samw * CDDL HEADER START 3*5331Samw * 4*5331Samw * The contents of this file are subject to the terms of the 5*5331Samw * Common Development and Distribution License (the "License"). 6*5331Samw * You may not use this file except in compliance with the License. 7*5331Samw * 8*5331Samw * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*5331Samw * or http://www.opensolaris.org/os/licensing. 10*5331Samw * See the License for the specific language governing permissions 11*5331Samw * and limitations under the License. 12*5331Samw * 13*5331Samw * When distributing Covered Code, include this CDDL HEADER in each 14*5331Samw * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*5331Samw * If applicable, add the following below this CDDL HEADER, with the 16*5331Samw * fields enclosed by brackets "[]" replaced with your own identifying 17*5331Samw * information: Portions Copyright [yyyy] [name of copyright owner] 18*5331Samw * 19*5331Samw * CDDL HEADER END 20*5331Samw */ 21*5331Samw /* 22*5331Samw * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23*5331Samw * Use is subject to license terms. 24*5331Samw */ 25*5331Samw 26*5331Samw #pragma ident "%Z%%M% %I% %E% SMI" 27*5331Samw 28*5331Samw #include <smbsrv/smb_incl.h> 29*5331Samw 30*5331Samw 31*5331Samw /* 32*5331Samw * Close a file by fid. All locks or other resources held by the 33*5331Samw * requesting process on the file should be released by the server. 34*5331Samw * The requesting process can no longer use the fid for further 35*5331Samw * file access requests. 36*5331Samw * 37*5331Samw * If LastWriteTime is non-zero, it should be used to set the file 38*5331Samw * timestamp. Otherwise, file system should set the timestamp. 39*5331Samw * Failure to set the timestamp, even if requested by the client, 40*5331Samw * should not result in an error response from the server. 41*5331Samw */ 42*5331Samw int 43*5331Samw smb_com_close(struct smb_request *sr) 44*5331Samw { 45*5331Samw uint32_t last_wtime; 46*5331Samw int rc = 0; 47*5331Samw 48*5331Samw rc = smbsr_decode_vwv(sr, "wl", &sr->smb_fid, &last_wtime); 49*5331Samw if (rc != 0) { 50*5331Samw smbsr_decode_error(sr); 51*5331Samw /* NOTREACHED */ 52*5331Samw } 53*5331Samw 54*5331Samw sr->fid_ofile = smb_ofile_lookup_by_fid(sr->tid_tree, sr->smb_fid); 55*5331Samw if (sr->fid_ofile == NULL) { 56*5331Samw smbsr_raise_cifs_error(sr, NT_STATUS_INVALID_HANDLE, 57*5331Samw ERRDOS, ERRbadfid); 58*5331Samw /* NOTREACHED */ 59*5331Samw } 60*5331Samw 61*5331Samw rc = smb_common_close(sr, last_wtime); 62*5331Samw if (rc) { 63*5331Samw smbsr_raise_errno(sr, rc); 64*5331Samw /* NOTREACHED */ 65*5331Samw } 66*5331Samw 67*5331Samw smbsr_encode_empty_result(sr); 68*5331Samw return (SDRC_NORMAL_REPLY); 69*5331Samw } 70*5331Samw 71*5331Samw /* 72*5331Samw * Close the file represented by fid and then disconnect the 73*5331Samw * associated tree. 74*5331Samw */ 75*5331Samw int 76*5331Samw smb_com_close_and_tree_disconnect(struct smb_request *sr) 77*5331Samw { 78*5331Samw uint32_t last_wtime; 79*5331Samw int rc = 0; 80*5331Samw 81*5331Samw rc = smbsr_decode_vwv(sr, "wl", &sr->smb_fid, &last_wtime); 82*5331Samw if (rc != 0) { 83*5331Samw smbsr_decode_error(sr); 84*5331Samw /* NOTREACHED */ 85*5331Samw } 86*5331Samw 87*5331Samw sr->fid_ofile = smb_ofile_lookup_by_fid(sr->tid_tree, sr->smb_fid); 88*5331Samw if (sr->fid_ofile == NULL) { 89*5331Samw smbsr_raise_cifs_error(sr, NT_STATUS_INVALID_HANDLE, 90*5331Samw ERRDOS, ERRbadfid); 91*5331Samw /* NOTREACHED */ 92*5331Samw } 93*5331Samw 94*5331Samw rc = smb_common_close(sr, last_wtime); 95*5331Samw smbsr_rq_notify(sr, sr->session, sr->tid_tree); 96*5331Samw smb_tree_disconnect(sr->tid_tree); 97*5331Samw 98*5331Samw if (rc) { 99*5331Samw smbsr_raise_errno(sr, rc); 100*5331Samw /* NOTREACHED */ 101*5331Samw } 102*5331Samw 103*5331Samw smbsr_encode_empty_result(sr); 104*5331Samw return (SDRC_NORMAL_REPLY); 105*5331Samw } 106*5331Samw 107*5331Samw /* 108*5331Samw * smb_common_close 109*5331Samw * 110*5331Samw * Common close function called by SmbClose, SmbWriteAndClose, 111*5331Samw * and SMBCloseAndTreeDisconnect. 112*5331Samw */ 113*5331Samw int 114*5331Samw smb_common_close(struct smb_request *sr, uint32_t last_wtime) 115*5331Samw { 116*5331Samw return (smb_ofile_close(sr->fid_ofile, last_wtime)); 117*5331Samw } 118*5331Samw 119*5331Samw /* 120*5331Samw * smb_commit_delete_on_close() 121*5331Samw * 122*5331Samw * Check for the DeleteOnClose flag on the smb file and set it on the 123*5331Samw * smb node if it is not already set. This will inhibit subsequent 124*5331Samw * open requests. The delete-on-close credentials should be set to the 125*5331Samw * user credentials of the current open file instance. 126*5331Samw * 127*5331Samw * When DeleteOnClose is set on an smb_node, the common open code will 128*5331Samw * reject subsequent open requests for the file. Observation of Windows 129*5331Samw * 2000 indicates that subsequent opens should be allowed (assuming 130*5331Samw * there would be no sharing violation) until the file is closed using 131*5331Samw * the fid on which the DeleteOnClose was requested. 132*5331Samw * 133*5331Samw * If there are multiple opens with delete-on-close create options, 134*5331Samw * whichever the first file handle is closed will trigger the node to be 135*5331Samw * marked as delete-on-close. The credentials of that ofile will be used 136*5331Samw * as the delete-on-close credentials of the node. 137*5331Samw */ 138*5331Samw void 139*5331Samw smb_commit_delete_on_close(struct smb_ofile *ofile) 140*5331Samw { 141*5331Samw struct smb_node *node = ofile->f_node; 142*5331Samw 143*5331Samw if (!(node->flags & NODE_FLAGS_DELETE_ON_CLOSE) && 144*5331Samw (ofile->f_flags & SMB_OFLAGS_SET_DELETE_ON_CLOSE)) { 145*5331Samw node->flags |= NODE_FLAGS_DELETE_ON_CLOSE; 146*5331Samw crhold(node->delete_on_close_cred = ofile->f_cr); 147*5331Samw } 148*5331Samw } 149