source: vendor/3.6.9/source3/smbd/smb2_setinfo.c

Last change on this file was 746, checked in by Silvan Scherrer, 13 years ago

Samba Server: updated vendor to 3.6.9
File size: 9.5 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3 Core SMB2 server
4
5 Copyright (C) Stefan Metzmacher 2009
6 Copyright (C) Jeremy Allison 2010
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
20*/
21
22#include "includes.h"
23#include "smbd/smbd.h"
24#include "smbd/globals.h"
25#include "../libcli/smb/smb_common.h"
26#include "trans2.h"
27#include "../lib/util/tevent_ntstatus.h"
28
29static struct tevent_req *smbd_smb2_setinfo_send(TALLOC_CTX *mem_ctx,
30 struct tevent_context *ev,
31 struct smbd_smb2_request *smb2req,
32 struct files_struct *in_fsp,
33 uint8_t in_info_type,
34 uint8_t in_file_info_class,
35 DATA_BLOB in_input_buffer,
36 uint32_t in_additional_information);
37static NTSTATUS smbd_smb2_setinfo_recv(struct tevent_req *req);
38
39static void smbd_smb2_request_setinfo_done(struct tevent_req *subreq);
40NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req)
41{
42 NTSTATUS status;
43 const uint8_t *inbody;
44 int i = req->current_idx;
45 uint8_t in_info_type;
46 uint8_t in_file_info_class;
47 uint16_t in_input_buffer_offset;
48 uint32_t in_input_buffer_length;
49 DATA_BLOB in_input_buffer;
50 uint32_t in_additional_information;
51 uint64_t in_file_id_persistent;
52 uint64_t in_file_id_volatile;
53 struct files_struct *in_fsp;
54 struct tevent_req *subreq;
55
56 status = smbd_smb2_request_verify_sizes(req, 0x21);
57 if (!NT_STATUS_IS_OK(status)) {
58 return smbd_smb2_request_error(req, status);
59 }
60 inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
61
62 in_info_type = CVAL(inbody, 0x02);
63 in_file_info_class = CVAL(inbody, 0x03);
64 in_input_buffer_length = IVAL(inbody, 0x04);
65 in_input_buffer_offset = SVAL(inbody, 0x08);
66 /* 0x0A 2 bytes reserved */
67 in_additional_information = IVAL(inbody, 0x0C);
68 in_file_id_persistent = BVAL(inbody, 0x10);
69 in_file_id_volatile = BVAL(inbody, 0x18);
70
71 if (in_input_buffer_offset == 0 && in_input_buffer_length == 0) {
72 /* This is ok */
73 } else if (in_input_buffer_offset !=
74 (SMB2_HDR_BODY + req->in.vector[i+1].iov_len)) {
75 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
76 }
77
78 if (in_input_buffer_length > req->in.vector[i+2].iov_len) {
79 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
80 }
81
82 in_input_buffer.data = (uint8_t *)req->in.vector[i+2].iov_base;
83 in_input_buffer.length = in_input_buffer_length;
84
85 if (in_input_buffer.length > req->sconn->smb2.max_trans) {
86 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
87 }
88
89 in_fsp = file_fsp_smb2(req, in_file_id_persistent, in_file_id_volatile);
90 if (in_fsp == NULL) {
91 return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
92 }
93
94 subreq = smbd_smb2_setinfo_send(req, req->sconn->smb2.event_ctx,
95 req, in_fsp,
96 in_info_type,
97 in_file_info_class,
98 in_input_buffer,
99 in_additional_information);
100 if (subreq == NULL) {
101 return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
102 }
103 tevent_req_set_callback(subreq, smbd_smb2_request_setinfo_done, req);
104
105 return smbd_smb2_request_pending_queue(req, subreq);
106}
107
108static void smbd_smb2_request_setinfo_done(struct tevent_req *subreq)
109{
110 struct smbd_smb2_request *req = tevent_req_callback_data(subreq,
111 struct smbd_smb2_request);
112 DATA_BLOB outbody;
113 NTSTATUS status;
114 NTSTATUS error; /* transport error */
115
116 status = smbd_smb2_setinfo_recv(subreq);
117 TALLOC_FREE(subreq);
118 if (!NT_STATUS_IS_OK(status)) {
119 error = smbd_smb2_request_error(req, status);
120 if (!NT_STATUS_IS_OK(error)) {
121 smbd_server_connection_terminate(req->sconn,
122 nt_errstr(error));
123 return;
124 }
125 return;
126 }
127
128 outbody = data_blob_talloc(req->out.vector, NULL, 0x02);
129 if (outbody.data == NULL) {
130 error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
131 if (!NT_STATUS_IS_OK(error)) {
132 smbd_server_connection_terminate(req->sconn,
133 nt_errstr(error));
134 return;
135 }
136 return;
137 }
138
139 SSVAL(outbody.data, 0x00, 0x02); /* struct size */
140
141 error = smbd_smb2_request_done(req, outbody, NULL);
142 if (!NT_STATUS_IS_OK(error)) {
143 smbd_server_connection_terminate(req->sconn,
144 nt_errstr(error));
145 return;
146 }
147}
148
149struct smbd_smb2_setinfo_state {
150 struct smbd_smb2_request *smb2req;
151};
152
153static struct tevent_req *smbd_smb2_setinfo_send(TALLOC_CTX *mem_ctx,
154 struct tevent_context *ev,
155 struct smbd_smb2_request *smb2req,
156 struct files_struct *fsp,
157 uint8_t in_info_type,
158 uint8_t in_file_info_class,
159 DATA_BLOB in_input_buffer,
160 uint32_t in_additional_information)
161{
162 struct tevent_req *req = NULL;
163 struct smbd_smb2_setinfo_state *state = NULL;
164 struct smb_request *smbreq = NULL;
165 connection_struct *conn = smb2req->tcon->compat_conn;
166 NTSTATUS status;
167
168 req = tevent_req_create(mem_ctx, &state,
169 struct smbd_smb2_setinfo_state);
170 if (req == NULL) {
171 return NULL;
172 }
173 state->smb2req = smb2req;
174
175 DEBUG(10,("smbd_smb2_setinfo_send: %s - fnum[%d]\n",
176 fsp_str_dbg(fsp), fsp->fnum));
177
178 smbreq = smbd_smb2_fake_smb_request(smb2req);
179 if (tevent_req_nomem(smbreq, req)) {
180 return tevent_req_post(req, ev);
181 }
182
183 if (IS_IPC(conn)) {
184 tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED);
185 return tevent_req_post(req, ev);
186 }
187
188 switch (in_info_type) {
189 case 0x01:/* SMB2_SETINFO_FILE */
190 {
191 uint16_t file_info_level;
192 char *data;
193 int data_size;
194 int ret_size = 0;
195
196
197 file_info_level = in_file_info_class + 1000;
198 if (file_info_level == SMB_FILE_RENAME_INFORMATION) {
199 /* SMB2_FILE_RENAME_INFORMATION_INTERNAL == 0xFF00 + in_file_info_class */
200 file_info_level = SMB2_FILE_RENAME_INFORMATION_INTERNAL;
201 }
202
203 if (fsp->fh->fd == -1) {
204 /*
205 * This is actually a SETFILEINFO on a directory
206 * handle (returned from an NT SMB). NT5.0 seems
207 * to do this call. JRA.
208 */
209 if (INFO_LEVEL_IS_UNIX(file_info_level)) {
210 /* Always do lstat for UNIX calls. */
211 if (SMB_VFS_LSTAT(conn, fsp->fsp_name)) {
212 DEBUG(3,("smbd_smb2_setinfo_send: "
213 "SMB_VFS_LSTAT of %s failed "
214 "(%s)\n", fsp_str_dbg(fsp),
215 strerror(errno)));
216 status = map_nt_error_from_unix(errno);
217 tevent_req_nterror(req, status);
218 return tevent_req_post(req, ev);
219 }
220 } else {
221 if (SMB_VFS_STAT(conn, fsp->fsp_name) != 0) {
222 DEBUG(3,("smbd_smb2_setinfo_send: "
223 "fileinfo of %s failed (%s)\n",
224 fsp_str_dbg(fsp),
225 strerror(errno)));
226 status = map_nt_error_from_unix(errno);
227 tevent_req_nterror(req, status);
228 return tevent_req_post(req, ev);
229 }
230 }
231 } else if (fsp->print_file) {
232 /*
233 * Doing a DELETE_ON_CLOSE should cancel a print job.
234 */
235 if ((file_info_level == SMB_SET_FILE_DISPOSITION_INFO)
236 && in_input_buffer.length >= 1
237 && CVAL(in_input_buffer.data,0)) {
238 fsp->fh->private_options |= NTCREATEX_OPTIONS_PRIVATE_DELETE_ON_CLOSE;
239
240 DEBUG(3,("smbd_smb2_setinfo_send: "
241 "Cancelling print job (%s)\n",
242 fsp_str_dbg(fsp)));
243
244 tevent_req_done(req);
245 return tevent_req_post(req, ev);
246 } else {
247 tevent_req_nterror(req,
248 NT_STATUS_OBJECT_PATH_INVALID);
249 return tevent_req_post(req, ev);
250 }
251 } else {
252 /*
253 * Original code - this is an open file.
254 */
255
256 if (SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
257 DEBUG(3,("smbd_smb2_setinfo_send: fstat "
258 "of fnum %d failed (%s)\n", fsp->fnum,
259 strerror(errno)));
260 status = map_nt_error_from_unix(errno);
261 tevent_req_nterror(req, status);
262 return tevent_req_post(req, ev);
263 }
264 }
265
266 data = NULL;
267 data_size = in_input_buffer.length;
268 if (data_size > 0) {
269 data = (char *)SMB_MALLOC_ARRAY(char, data_size);
270 if (tevent_req_nomem(data, req)) {
271 return tevent_req_post(req, ev);
272 }
273 memcpy(data, in_input_buffer.data, data_size);
274 }
275
276 status = smbd_do_setfilepathinfo(conn, smbreq, state,
277 file_info_level,
278 fsp,
279 fsp->fsp_name,
280 &data,
281 data_size,
282 &ret_size);
283 SAFE_FREE(data);
284 if (!NT_STATUS_IS_OK(status)) {
285 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_LEVEL)) {
286 status = NT_STATUS_INVALID_INFO_CLASS;
287 }
288 tevent_req_nterror(req, status);
289 return tevent_req_post(req, ev);
290 }
291 break;
292 }
293
294 case 0x03:/* SMB2_SETINFO_SECURITY */
295 {
296 if (!CAN_WRITE(conn)) {
297 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
298 return tevent_req_post(req, ev);
299 }
300
301 status = set_sd_blob(fsp,
302 in_input_buffer.data,
303 in_input_buffer.length,
304 in_additional_information);
305 if (!NT_STATUS_IS_OK(status)) {
306 tevent_req_nterror(req, status);
307 return tevent_req_post(req, ev);
308 }
309 break;
310 }
311
312 default:
313 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
314 return tevent_req_post(req, ev);
315 }
316
317 tevent_req_done(req);
318 return tevent_req_post(req, ev);
319}
320
321static NTSTATUS smbd_smb2_setinfo_recv(struct tevent_req *req)
322{
323 NTSTATUS status;
324
325 if (tevent_req_is_nterror(req, &status)) {
326 tevent_req_received(req);
327 return status;
328 }
329
330 tevent_req_received(req);
331 return NT_STATUS_OK;
332}
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