| 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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