1/* 2 Unix SMB/CIFS implementation. 3 Core SMB2 server 4 5 Copyright (C) Stefan Metzmacher 2009 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. 19*/ 20 21#include "includes.h" 22#include "smbd/globals.h" 23#include "../libcli/smb/smb_common.h" 24 25static NTSTATUS smbd_smb2_close(struct smbd_smb2_request *req, 26 uint16_t in_flags, 27 uint64_t in_file_id_volatile); 28 29NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req) 30{ 31 const uint8_t *inhdr; 32 const uint8_t *inbody; 33 int i = req->current_idx; 34 uint8_t *outhdr; 35 DATA_BLOB outbody; 36 size_t expected_body_size = 0x18; 37 size_t body_size; 38 uint16_t in_flags; 39 uint64_t in_file_id_persistent; 40 uint64_t in_file_id_volatile; 41 NTSTATUS status; 42 43 inhdr = (const uint8_t *)req->in.vector[i+0].iov_base; 44 if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) { 45 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER); 46 } 47 48 inbody = (const uint8_t *)req->in.vector[i+1].iov_base; 49 50 body_size = SVAL(inbody, 0x00); 51 if (body_size != expected_body_size) { 52 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER); 53 } 54 55 in_flags = SVAL(inbody, 0x02); 56 in_file_id_persistent = BVAL(inbody, 0x08); 57 in_file_id_volatile = BVAL(inbody, 0x10); 58 59 if (req->compat_chain_fsp) { 60 /* skip check */ 61 } else if (in_file_id_persistent != 0) { 62 return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED); 63 } 64 65 status = smbd_smb2_close(req, 66 in_flags, 67 in_file_id_volatile); 68 if (!NT_STATUS_IS_OK(status)) { 69 return smbd_smb2_request_error(req, status); 70 } 71 72 outhdr = (uint8_t *)req->out.vector[i].iov_base; 73 74 outbody = data_blob_talloc(req->out.vector, NULL, 0x3C); 75 if (outbody.data == NULL) { 76 return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY); 77 } 78 79 SSVAL(outbody.data, 0x00, 0x3C); /* struct size */ 80 SSVAL(outbody.data, 0x02, 0); /* flags */ 81 SIVAL(outbody.data, 0x04, 0); /* reserved */ 82 SBVAL(outbody.data, 0x08, 0); /* creation time */ 83 SBVAL(outbody.data, 0x10, 0); /* last access time */ 84 SBVAL(outbody.data, 0x18, 0); /* last write time */ 85 SBVAL(outbody.data, 0x20, 0); /* change time */ 86 SBVAL(outbody.data, 0x28, 0); /* allocation size */ 87 SBVAL(outbody.data, 0x30, 0); /* end of size */ 88 SIVAL(outbody.data, 0x38, 0); /* file attributes */ 89 90 return smbd_smb2_request_done(req, outbody, NULL); 91} 92 93static NTSTATUS smbd_smb2_close(struct smbd_smb2_request *req, 94 uint16_t in_flags, 95 uint64_t in_file_id_volatile) 96{ 97 NTSTATUS status; 98 struct smb_request *smbreq; 99 connection_struct *conn = req->tcon->compat_conn; 100 files_struct *fsp; 101 102 DEBUG(10,("smbd_smb2_close: file_id[0x%016llX]\n", 103 (unsigned long long)in_file_id_volatile)); 104 105 smbreq = smbd_smb2_fake_smb_request(req); 106 if (smbreq == NULL) { 107 return NT_STATUS_NO_MEMORY; 108 } 109 110 fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile); 111 if (fsp == NULL) { 112 return NT_STATUS_FILE_CLOSED; 113 } 114 if (conn != fsp->conn) { 115 return NT_STATUS_FILE_CLOSED; 116 } 117 if (req->session->vuid != fsp->vuid) { 118 return NT_STATUS_FILE_CLOSED; 119 } 120 121 status = close_file(smbreq, fsp, NORMAL_CLOSE); 122 if (!NT_STATUS_IS_OK(status)) { 123 DEBUG(5,("smbd_smb2_close: close_file[%s]: %s\n", 124 fsp_str_dbg(fsp), nt_errstr(status))); 125 return status; 126 } 127 128 return NT_STATUS_OK; 129} 130