1 | /*
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2 | Unix SMB/CIFS implementation.
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3 | Core SMB2 server
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4 |
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5 | Copyright (C) Stefan Metzmacher 2009
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6 |
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7 | This program is free software; you can redistribute it and/or modify
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8 | it under the terms of the GNU General Public License as published by
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9 | the Free Software Foundation; either version 3 of the License, or
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10 | (at your option) any later version.
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11 |
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12 | This program is distributed in the hope that it will be useful,
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13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | GNU General Public License for more details.
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16 |
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17 | You should have received a copy of the GNU General Public License
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18 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 |
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21 | #include "includes.h"
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22 | #include "smbd/smbd.h"
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23 | #include "smbd/globals.h"
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24 | #include "../libcli/smb/smb_common.h"
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25 |
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26 | static NTSTATUS smbd_smb2_close(struct smbd_smb2_request *req,
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27 | struct files_struct *fsp,
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28 | uint16_t in_flags,
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29 | DATA_BLOB *outbody);
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30 |
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31 | NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req)
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32 | {
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33 | const uint8_t *inbody;
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34 | int i = req->current_idx;
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35 | uint8_t *outhdr;
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36 | DATA_BLOB outbody;
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37 | uint16_t in_flags;
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38 | uint64_t in_file_id_persistent;
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39 | uint64_t in_file_id_volatile;
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40 | struct files_struct *in_fsp;
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41 | NTSTATUS status;
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42 |
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43 | status = smbd_smb2_request_verify_sizes(req, 0x18);
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44 | if (!NT_STATUS_IS_OK(status)) {
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45 | return smbd_smb2_request_error(req, status);
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46 | }
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47 | inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
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48 |
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49 | outbody = data_blob_talloc(req->out.vector, NULL, 0x3C);
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50 | if (outbody.data == NULL) {
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51 | return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
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52 | }
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53 |
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54 | in_flags = SVAL(inbody, 0x02);
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55 | in_file_id_persistent = BVAL(inbody, 0x08);
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56 | in_file_id_volatile = BVAL(inbody, 0x10);
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57 |
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58 | in_fsp = file_fsp_smb2(req, in_file_id_persistent, in_file_id_volatile);
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59 | if (in_fsp == NULL) {
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60 | return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
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61 | }
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62 |
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63 | status = smbd_smb2_close(req,
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64 | in_fsp,
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65 | in_flags,
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66 | &outbody);
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67 | if (!NT_STATUS_IS_OK(status)) {
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68 | return smbd_smb2_request_error(req, status);
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69 | }
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70 |
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71 | outhdr = (uint8_t *)req->out.vector[i].iov_base;
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72 | return smbd_smb2_request_done(req, outbody, NULL);
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73 | }
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74 |
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75 | static NTSTATUS smbd_smb2_close(struct smbd_smb2_request *req,
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76 | struct files_struct *fsp,
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77 | uint16_t in_flags,
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78 | DATA_BLOB *outbody)
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79 | {
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80 | NTSTATUS status;
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81 | struct smb_request *smbreq;
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82 | connection_struct *conn = req->tcon->compat_conn;
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83 | struct smb_filename *smb_fname = NULL;
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84 | struct timespec mdate_ts, adate_ts, cdate_ts, create_date_ts;
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85 | uint64_t allocation_size = 0;
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86 | uint64_t file_size = 0;
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87 | uint32_t dos_attrs = 0;
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88 | uint16_t out_flags = 0;
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89 | bool posix_open = false;
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90 |
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91 | ZERO_STRUCT(create_date_ts);
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92 | ZERO_STRUCT(adate_ts);
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93 | ZERO_STRUCT(mdate_ts);
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94 | ZERO_STRUCT(cdate_ts);
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95 |
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96 | DEBUG(10,("smbd_smb2_close: %s - fnum[%d]\n",
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97 | fsp_str_dbg(fsp), fsp->fnum));
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98 |
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99 | smbreq = smbd_smb2_fake_smb_request(req);
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100 | if (smbreq == NULL) {
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101 | return NT_STATUS_NO_MEMORY;
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102 | }
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103 |
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104 | posix_open = fsp->posix_open;
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105 | status = copy_smb_filename(talloc_tos(),
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106 | fsp->fsp_name,
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107 | &smb_fname);
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108 | if (!NT_STATUS_IS_OK(status)) {
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109 | return status;
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110 | }
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111 |
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112 | status = close_file(smbreq, fsp, NORMAL_CLOSE);
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113 | if (!NT_STATUS_IS_OK(status)) {
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114 | DEBUG(5,("smbd_smb2_close: close_file[%s]: %s\n",
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115 | fsp_str_dbg(fsp), nt_errstr(status)));
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116 | return status;
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117 | }
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118 |
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119 | if (in_flags & SMB2_CLOSE_FLAGS_FULL_INFORMATION) {
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120 | int ret;
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121 | if (posix_open) {
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122 | ret = SMB_VFS_LSTAT(conn, smb_fname);
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123 | } else {
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124 | ret = SMB_VFS_STAT(conn, smb_fname);
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125 | }
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126 | if (ret == 0) {
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127 | out_flags = SMB2_CLOSE_FLAGS_FULL_INFORMATION;
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128 | dos_attrs = dos_mode(conn, smb_fname);
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129 | mdate_ts = smb_fname->st.st_ex_mtime;
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130 | adate_ts = smb_fname->st.st_ex_atime;
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131 | create_date_ts = get_create_timespec(conn, NULL, smb_fname);
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132 | cdate_ts = get_change_timespec(conn, NULL, smb_fname);
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133 |
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134 | if (lp_dos_filetime_resolution(SNUM(conn))) {
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135 | dos_filetime_timespec(&create_date_ts);
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136 | dos_filetime_timespec(&mdate_ts);
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137 | dos_filetime_timespec(&adate_ts);
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138 | dos_filetime_timespec(&cdate_ts);
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139 | }
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140 | if (!(dos_attrs & FILE_ATTRIBUTE_DIRECTORY)) {
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141 | file_size = get_file_size_stat(&smb_fname->st);
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142 | }
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143 |
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144 | allocation_size = SMB_VFS_GET_ALLOC_SIZE(conn, NULL, &smb_fname->st);
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145 | }
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146 | }
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147 |
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148 | SSVAL(outbody->data, 0x00, 0x3C); /* struct size */
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149 | SSVAL(outbody->data, 0x02, out_flags); /* flags */
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150 | SIVAL(outbody->data, 0x04, 0); /* reserved */
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151 | put_long_date_timespec(conn->ts_res,
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152 | (char *)&outbody->data[0x8],create_date_ts); /* creation time */
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153 | put_long_date_timespec(conn->ts_res,
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154 | (char *)&outbody->data[0x10],adate_ts); /* last access time */
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155 | put_long_date_timespec(conn->ts_res,
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156 | (char *)&outbody->data[0x18],mdate_ts); /* last write time */
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157 | put_long_date_timespec(conn->ts_res,
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158 | (char *)&outbody->data[0x20],cdate_ts); /* change time */
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159 | SBVAL(outbody->data, 0x28, allocation_size);/* allocation size */
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160 | SBVAL(outbody->data, 0x30, file_size); /* end of file */
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161 | SIVAL(outbody->data, 0x38, dos_attrs); /* file attributes */
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162 |
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163 | return NT_STATUS_OK;
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164 | }
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