2 Unix SMB/CIFS implementation.
3 Printing routines that bridge to spoolss
4 Copyright (C) Simo Sorce 2010
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "rpc_client/rpc_client.h"
23 #include "../librpc/gen_ndr/ndr_spoolss_c.h"
24 #include "rpc_server/rpc_ncacn_np.h"
25 #include "smbd/globals.h"
26 #include "../libcli/security/security.h"
28 struct print_file_data
{
32 struct policy_handle handle
;
37 uint16_t print_spool_rap_jobid(struct print_file_data
*print_file
)
39 if (print_file
== NULL
) {
43 return print_file
->rap_jobid
;
46 void print_spool_terminate(struct connection_struct
*conn
,
47 struct print_file_data
*print_file
);
49 /***************************************************************************
50 * Open a Document over spoolss
51 ***************************************************************************/
53 #define DOCNAME_DEFAULT "Remote Downlevel Document"
54 #ifndef PRINT_SPOOL_PREFIX
55 #define PRINT_SPOOL_PREFIX "smbprn."
58 NTSTATUS
print_spool_open(files_struct
*fsp
,
60 uint64_t current_vuid
)
64 struct print_file_data
*pf
;
65 struct dcerpc_binding_handle
*b
= NULL
;
66 struct spoolss_DevmodeContainer devmode_ctr
;
67 union spoolss_DocumentInfo info
;
71 tmp_ctx
= talloc_new(fsp
);
73 return NT_STATUS_NO_MEMORY
;
76 pf
= talloc_zero(fsp
, struct print_file_data
);
78 status
= NT_STATUS_NO_MEMORY
;
81 pf
->svcname
= talloc_strdup(pf
, lp_servicename(SNUM(fsp
->conn
)));
83 /* the document name is derived from the file name.
84 * "Remote Downlevel Document" is added in front to
85 * mimic what windows does in this case */
86 pf
->docname
= talloc_strdup(pf
, DOCNAME_DEFAULT
);
88 status
= NT_STATUS_NO_MEMORY
;
92 const char *p
= strrchr(fname
, '/');
96 pf
->docname
= talloc_asprintf_append(pf
->docname
, " %s", p
);
98 status
= NT_STATUS_NO_MEMORY
;
104 * Ok, now we have to open an actual file.
105 * Here is the reason:
106 * We want to write the spool job to this file in
107 * smbd for scalability reason (and also because
108 * apparently window printer drivers can seek when
109 * spooling to a file).
110 * So we first create a file, and then we pass it
111 * to spoolss in output_file so it can monitor and
112 * take over once we call EndDocPrinter().
113 * Of course we will not start writing until
114 * StartDocPrinter() actually gives the ok.
115 * smbd spooler files do not include a print jobid
116 * path component, as the jobid is only known after
117 * calling StartDocPrinter().
120 pf
->filename
= talloc_asprintf(pf
, "%s/%sXXXXXX",
121 lp_pathname(SNUM(fsp
->conn
)),
124 status
= NT_STATUS_NO_MEMORY
;
128 fd
= mkstemp(pf
->filename
);
130 if (errno
== EACCES
) {
131 /* Common setup error, force a report. */
132 DEBUG(0, ("Insufficient permissions "
133 "to open spool file %s.\n",
136 /* Normal case, report at level 3 and above. */
137 DEBUG(3, ("can't open spool file %s,\n",
139 DEBUGADD(3, ("errno = %d (%s).\n",
140 errno
, strerror(errno
)));
142 status
= map_nt_error_from_unix(errno
);
146 /* now open a document over spoolss so that it does
147 * all printer verification, and eventually assigns
150 status
= rpc_pipe_open_interface(fsp
->conn
,
151 &ndr_table_spoolss
.syntax_id
,
152 fsp
->conn
->session_info
,
153 fsp
->conn
->sconn
->remote_address
,
154 fsp
->conn
->sconn
->msg_ctx
,
155 &fsp
->conn
->spoolss_pipe
);
156 if (!NT_STATUS_IS_OK(status
)) {
159 b
= fsp
->conn
->spoolss_pipe
->binding_handle
;
161 ZERO_STRUCT(devmode_ctr
);
163 status
= dcerpc_spoolss_OpenPrinter(b
, pf
, pf
->svcname
,
165 SEC_FLAG_MAXIMUM_ALLOWED
,
167 if (!NT_STATUS_IS_OK(status
)) {
170 if (!W_ERROR_IS_OK(werr
)) {
171 status
= werror_to_ntstatus(werr
);
175 info
.info1
= talloc(tmp_ctx
, struct spoolss_DocumentInfo1
);
177 status
= NT_STATUS_NO_MEMORY
;
180 info
.info1
->document_name
= pf
->docname
;
181 info
.info1
->output_file
= pf
->filename
;
182 info
.info1
->datatype
= "RAW";
184 status
= dcerpc_spoolss_StartDocPrinter(b
, tmp_ctx
, &pf
->handle
,
185 1, info
, &pf
->jobid
, &werr
);
186 if (!NT_STATUS_IS_OK(status
)) {
189 if (!W_ERROR_IS_OK(werr
)) {
190 status
= werror_to_ntstatus(werr
);
194 /* Convert to RAP id. */
195 pf
->rap_jobid
= pjobid_to_rap(pf
->svcname
, pf
->jobid
);
196 if (pf
->rap_jobid
== 0) {
197 /* No errno around here */
198 status
= NT_STATUS_ACCESS_DENIED
;
202 /* setup a full fsp */
203 status
= create_synthetic_smb_fname(fsp
, pf
->filename
, NULL
,
204 NULL
, &fsp
->fsp_name
);
205 if (!NT_STATUS_IS_OK(status
)) {
209 if (sys_fstat(fd
, &fsp
->fsp_name
->st
, false) != 0) {
210 status
= map_nt_error_from_unix(errno
);
214 fsp
->file_id
= vfs_file_id_from_sbuf(fsp
->conn
, &fsp
->fsp_name
->st
);
217 fsp
->vuid
= current_vuid
;
218 fsp
->can_lock
= false;
219 fsp
->can_read
= false;
220 fsp
->access_mask
= FILE_GENERIC_WRITE
;
221 fsp
->can_write
= true;
222 fsp
->modified
= false;
223 fsp
->oplock_type
= NO_OPLOCK
;
224 fsp
->sent_oplock_break
= NO_BREAK_SENT
;
225 fsp
->is_directory
= false;
227 fsp
->print_file
= pf
;
229 status
= NT_STATUS_OK
;
231 if (!NT_STATUS_IS_OK(status
)) {
234 if (fsp
->print_file
) {
235 unlink(fsp
->print_file
->filename
);
238 /* We need to delete the job from spoolss too */
240 print_spool_terminate(fsp
->conn
, pf
);
243 talloc_free(tmp_ctx
);
247 int print_spool_write(files_struct
*fsp
,
248 const char *data
, uint32_t size
,
249 off_t offset
, uint32_t *written
)
257 /* first of all stat file to find out if it is still there.
258 * spoolss may have deleted it to signal someone has killed
259 * the job through it's interface */
261 if (sys_fstat(fsp
->fh
->fd
, &st
, false) != 0) {
263 DEBUG(3, ("printfile_offset: sys_fstat failed on %s (%s)\n",
264 fsp_str_dbg(fsp
), strerror(ret
)));
268 /* check if the file is unlinked, this will signal spoolss has
269 * killed it, just return an error and close the file */
270 if (st
.st_ex_nlink
== 0) {
275 /* When print files go beyond 4GB, the 32-bit offset sent in
276 * old SMBwrite calls is relative to the current 4GB chunk
278 * Discovered by Sebastian Kloska <oncaphillis@snafu.de>.
280 if (offset
< 0xffffffff00000000LL
) {
281 offset
= (st
.st_ex_size
& 0xffffffff00000000LL
) + offset
;
284 n
= write_data_at_offset(fsp
->fh
->fd
, data
, size
, offset
);
287 print_spool_terminate(fsp
->conn
, fsp
->print_file
);
296 void print_spool_end(files_struct
*fsp
, enum file_close_type close_type
)
300 struct dcerpc_binding_handle
*b
= NULL
;
302 b
= fsp
->conn
->spoolss_pipe
->binding_handle
;
304 switch (close_type
) {
307 /* this also automatically calls spoolss_EndDocPrinter */
308 status
= dcerpc_spoolss_ClosePrinter(b
, fsp
->print_file
,
309 &fsp
->print_file
->handle
,
311 if (!NT_STATUS_IS_OK(status
) ||
312 !NT_STATUS_IS_OK(status
= werror_to_ntstatus(werr
))) {
313 DEBUG(3, ("Failed to close printer %s [%s]\n",
314 fsp
->print_file
->svcname
, nt_errstr(status
)));
318 print_spool_terminate(fsp
->conn
, fsp
->print_file
);
324 void print_spool_terminate(struct connection_struct
*conn
,
325 struct print_file_data
*print_file
)
329 struct dcerpc_binding_handle
*b
= NULL
;
331 rap_jobid_delete(print_file
->svcname
, print_file
->jobid
);
333 status
= rpc_pipe_open_interface(conn
,
334 &ndr_table_spoolss
.syntax_id
,
336 conn
->sconn
->remote_address
,
337 conn
->sconn
->msg_ctx
,
338 &conn
->spoolss_pipe
);
339 if (!NT_STATUS_IS_OK(status
)) {
340 DEBUG(0, ("print_spool_terminate: "
341 "Failed to get spoolss pipe [%s]\n",
345 b
= conn
->spoolss_pipe
->binding_handle
;
347 status
= dcerpc_spoolss_SetJob(b
, print_file
,
350 NULL
, SPOOLSS_JOB_CONTROL_DELETE
,
352 if (!NT_STATUS_IS_OK(status
) ||
353 !NT_STATUS_IS_OK(status
= werror_to_ntstatus(werr
))) {
354 DEBUG(3, ("Failed to delete job %d [%s]\n",
355 print_file
->jobid
, nt_errstr(status
)));
358 status
= dcerpc_spoolss_ClosePrinter(b
, print_file
,
361 if (!NT_STATUS_IS_OK(status
) ||
362 !NT_STATUS_IS_OK(status
= werror_to_ntstatus(werr
))) {
363 DEBUG(3, ("Failed to close printer %s [%s]\n",
364 print_file
->svcname
, nt_errstr(status
)));