source: vendor/3.6.0/source3/smbd/smb2_setinfo.c

Last change on this file was 740, checked in by Silvan Scherrer, 13 years ago

Samba Server: update vendor to 3.6.0
File size: 10.3 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 uint8_t in_info_type,
33 uint8_t in_file_info_class,
34 DATA_BLOB in_input_buffer,
35 uint32_t in_additional_information,
36 uint64_t in_file_id_volatile);
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 const uint8_t *inhdr;
43 const uint8_t *inbody;
44 int i = req->current_idx;
45 size_t expected_body_size = 0x21;
46 size_t body_size;
47 uint8_t in_info_type;
48 uint8_t in_file_info_class;
49 uint16_t in_input_buffer_offset;
50 uint32_t in_input_buffer_length;
51 DATA_BLOB in_input_buffer;
52 uint32_t in_additional_information;
53 uint64_t in_file_id_persistent;
54 uint64_t in_file_id_volatile;
55 struct tevent_req *subreq;
56
57 inhdr = (const uint8_t *)req->in.vector[i+0].iov_base;
58 if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) {
59 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
60 }
61
62 inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
63
64 body_size = SVAL(inbody, 0x00);
65 if (body_size != expected_body_size) {
66 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
67 }
68
69 in_info_type = CVAL(inbody, 0x02);
70 in_file_info_class = CVAL(inbody, 0x03);
71 in_input_buffer_length = IVAL(inbody, 0x04);
72 in_input_buffer_offset = SVAL(inbody, 0x08);
73 /* 0x0A 2 bytes reserved */
74 in_additional_information = IVAL(inbody, 0x0C);
75 in_file_id_persistent = BVAL(inbody, 0x10);
76 in_file_id_volatile = BVAL(inbody, 0x18);
77
78 if (in_input_buffer_offset == 0 && in_input_buffer_length == 0) {
79 /* This is ok */
80 } else if (in_input_buffer_offset !=
81 (SMB2_HDR_BODY + (body_size & 0xFFFFFFFE))) {
82 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
83 }
84
85 if (in_input_buffer_length > req->in.vector[i+2].iov_len) {
86 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
87 }
88
89 in_input_buffer.data = (uint8_t *)req->in.vector[i+2].iov_base;
90 in_input_buffer.length = in_input_buffer_length;
91
92 if (req->compat_chain_fsp) {
93 /* skip check */
94 } else if (in_file_id_persistent != in_file_id_volatile) {
95 return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
96 }
97
98 subreq = smbd_smb2_setinfo_send(req,
99 req->sconn->smb2.event_ctx,
100 req,
101 in_info_type,
102 in_file_info_class,
103 in_input_buffer,
104 in_additional_information,
105 in_file_id_volatile);
106 if (subreq == NULL) {
107 return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
108 }
109 tevent_req_set_callback(subreq, smbd_smb2_request_setinfo_done, req);
110
111 return smbd_smb2_request_pending_queue(req, subreq);
112}
113
114static void smbd_smb2_request_setinfo_done(struct tevent_req *subreq)
115{
116 struct smbd_smb2_request *req = tevent_req_callback_data(subreq,
117 struct smbd_smb2_request);
118 DATA_BLOB outbody;
119 NTSTATUS status;
120 NTSTATUS error; /* transport error */
121
122 status = smbd_smb2_setinfo_recv(subreq);
123 TALLOC_FREE(subreq);
124 if (!NT_STATUS_IS_OK(status)) {
125 error = smbd_smb2_request_error(req, status);
126 if (!NT_STATUS_IS_OK(error)) {
127 smbd_server_connection_terminate(req->sconn,
128 nt_errstr(error));
129 return;
130 }
131 return;
132 }
133
134 outbody = data_blob_talloc(req->out.vector, NULL, 0x02);
135 if (outbody.data == NULL) {
136 error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
137 if (!NT_STATUS_IS_OK(error)) {
138 smbd_server_connection_terminate(req->sconn,
139 nt_errstr(error));
140 return;
141 }
142 return;
143 }
144
145 SSVAL(outbody.data, 0x00, 0x02); /* struct size */
146
147 error = smbd_smb2_request_done(req, outbody, NULL);
148 if (!NT_STATUS_IS_OK(error)) {
149 smbd_server_connection_terminate(req->sconn,
150 nt_errstr(error));
151 return;
152 }
153}
154
155struct smbd_smb2_setinfo_state {
156 struct smbd_smb2_request *smb2req;
157};
158
159static struct tevent_req *smbd_smb2_setinfo_send(TALLOC_CTX *mem_ctx,
160 struct tevent_context *ev,
161 struct smbd_smb2_request *smb2req,
162 uint8_t in_info_type,
163 uint8_t in_file_info_class,
164 DATA_BLOB in_input_buffer,
165 uint32_t in_additional_information,
166 uint64_t in_file_id_volatile)
167{
168 struct tevent_req *req = NULL;
169 struct smbd_smb2_setinfo_state *state = NULL;
170 struct smb_request *smbreq = NULL;
171 connection_struct *conn = smb2req->tcon->compat_conn;
172 files_struct *fsp = NULL;
173 NTSTATUS status;
174
175 req = tevent_req_create(mem_ctx, &state,
176 struct smbd_smb2_setinfo_state);
177 if (req == NULL) {
178 return NULL;
179 }
180 state->smb2req = smb2req;
181
182 DEBUG(10,("smbd_smb2_setinfo_send: file_id[0x%016llX]\n",
183 (unsigned long long)in_file_id_volatile));
184
185 smbreq = smbd_smb2_fake_smb_request(smb2req);
186 if (tevent_req_nomem(smbreq, req)) {
187 return tevent_req_post(req, ev);
188 }
189
190 fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
191 if (fsp == NULL) {
192 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
193 return tevent_req_post(req, ev);
194 }
195 if (conn != fsp->conn) {
196 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
197 return tevent_req_post(req, ev);
198 }
199 if (smb2req->session->vuid != fsp->vuid) {
200 tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
201 return tevent_req_post(req, ev);
202 }
203
204 if (IS_IPC(conn)) {
205 tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED);
206 return tevent_req_post(req, ev);
207 }
208
209 switch (in_info_type) {
210 case 0x01:/* SMB2_SETINFO_FILE */
211 {
212 uint16_t file_info_level;
213 char *data;
214 int data_size;
215 int ret_size = 0;
216
217
218 file_info_level = in_file_info_class + 1000;
219 if (file_info_level == SMB_FILE_RENAME_INFORMATION) {
220 /* SMB2_FILE_RENAME_INFORMATION_INTERNAL == 0xFF00 + in_file_info_class */
221 file_info_level = SMB2_FILE_RENAME_INFORMATION_INTERNAL;
222 if (fsp->oplock_type != FAKE_LEVEL_II_OPLOCK &&
223 fsp->oplock_type != NO_OPLOCK) {
224 /* No break, but error. */
225 tevent_req_nterror(req, NT_STATUS_SHARING_VIOLATION);
226 return tevent_req_post(req, ev);
227 }
228 }
229
230 if (fsp->fh->fd == -1) {
231 /*
232 * This is actually a SETFILEINFO on a directory
233 * handle (returned from an NT SMB). NT5.0 seems
234 * to do this call. JRA.
235 */
236 if (INFO_LEVEL_IS_UNIX(file_info_level)) {
237 /* Always do lstat for UNIX calls. */
238 if (SMB_VFS_LSTAT(conn, fsp->fsp_name)) {
239 DEBUG(3,("smbd_smb2_setinfo_send: "
240 "SMB_VFS_LSTAT of %s failed "
241 "(%s)\n", fsp_str_dbg(fsp),
242 strerror(errno)));
243 status = map_nt_error_from_unix(errno);
244 tevent_req_nterror(req, status);
245 return tevent_req_post(req, ev);
246 }
247 } else {
248 if (SMB_VFS_STAT(conn, fsp->fsp_name) != 0) {
249 DEBUG(3,("smbd_smb2_setinfo_send: "
250 "fileinfo of %s failed (%s)\n",
251 fsp_str_dbg(fsp),
252 strerror(errno)));
253 status = map_nt_error_from_unix(errno);
254 tevent_req_nterror(req, status);
255 return tevent_req_post(req, ev);
256 }
257 }
258 } else if (fsp->print_file) {
259 /*
260 * Doing a DELETE_ON_CLOSE should cancel a print job.
261 */
262 if ((file_info_level == SMB_SET_FILE_DISPOSITION_INFO)
263 && in_input_buffer.length >= 1
264 && CVAL(in_input_buffer.data,0)) {
265 fsp->fh->private_options |= NTCREATEX_OPTIONS_PRIVATE_DELETE_ON_CLOSE;
266
267 DEBUG(3,("smbd_smb2_setinfo_send: "
268 "Cancelling print job (%s)\n",
269 fsp_str_dbg(fsp)));
270
271 tevent_req_done(req);
272 return tevent_req_post(req, ev);
273 } else {
274 tevent_req_nterror(req,
275 NT_STATUS_OBJECT_PATH_INVALID);
276 return tevent_req_post(req, ev);
277 }
278 } else {
279 /*
280 * Original code - this is an open file.
281 */
282
283 if (SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
284 DEBUG(3,("smbd_smb2_setinfo_send: fstat "
285 "of fnum %d failed (%s)\n", fsp->fnum,
286 strerror(errno)));
287 status = map_nt_error_from_unix(errno);
288 tevent_req_nterror(req, status);
289 return tevent_req_post(req, ev);
290 }
291 }
292
293 data = NULL;
294 data_size = in_input_buffer.length;
295 if (data_size > 0) {
296 data = (char *)SMB_MALLOC_ARRAY(char, data_size);
297 if (tevent_req_nomem(data, req)) {
298 return tevent_req_post(req, ev);
299 }
300 memcpy(data, in_input_buffer.data, data_size);
301 }
302
303 status = smbd_do_setfilepathinfo(conn, smbreq, state,
304 file_info_level,
305 fsp,
306 fsp->fsp_name,
307 &data,
308 data_size,
309 &ret_size);
310 SAFE_FREE(data);
311 if (!NT_STATUS_IS_OK(status)) {
312 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_LEVEL)) {
313 status = NT_STATUS_INVALID_INFO_CLASS;
314 }
315 tevent_req_nterror(req, status);
316 return tevent_req_post(req, ev);
317 }
318 break;
319 }
320
321 case 0x03:/* SMB2_SETINFO_SECURITY */
322 {
323 if (!CAN_WRITE(conn)) {
324 tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
325 return tevent_req_post(req, ev);
326 }
327
328 status = set_sd(fsp,
329 in_input_buffer.data,
330 in_input_buffer.length,
331 in_additional_information);
332 if (!NT_STATUS_IS_OK(status)) {
333 tevent_req_nterror(req, status);
334 return tevent_req_post(req, ev);
335 }
336 break;
337 }
338
339 default:
340 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
341 return tevent_req_post(req, ev);
342 }
343
344 tevent_req_done(req);
345 return tevent_req_post(req, ev);
346}
347
348static NTSTATUS smbd_smb2_setinfo_recv(struct tevent_req *req)
349{
350 NTSTATUS status;
351
352 if (tevent_req_is_nterror(req, &status)) {
353 tevent_req_received(req);
354 return status;
355 }
356
357 tevent_req_received(req);
358 return NT_STATUS_OK;
359}
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