1 /*
2    Unix SMB/CIFS implementation.
3    printing definitions
4    Copyright (C) Andrew Tridgell 1992-2000
5 
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.
10 
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.
15 
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/>.
18 */
19 
20 /*
21    This file defines the low-level printing system interfaces used by the
22    SAMBA printing subsystem.
23 */
24 #ifndef PRINTING_H_
25 #define PRINTING_H_
26 
27 #include <tdb.h>
28 #include "lib/param/loadparm.h"
29 
30 /* Extra fields above "LPQ_PRINTING" are used to map extra NT status codes. */
31 
32 enum {
33 	LPQ_QUEUED = 0,
34 	LPQ_PAUSED,
35 	LPQ_SPOOLING,
36 	LPQ_PRINTING,
37 	LPQ_ERROR,
38 	LPQ_DELETING,
39 	LPQ_OFFLINE,
40 	LPQ_PAPEROUT,
41 	LPQ_PRINTED,
42 	LPQ_DELETED,
43 	LPQ_BLOCKED,
44 	LPQ_USER_INTERVENTION,
45 
46 	/* smbd is dooing the file spooling before passing control to spoolss */
47 	PJOB_SMBD_SPOOLING
48 };
49 
50 typedef struct _print_queue_struct {
51 	int sysjob;		/* normally the UNIX jobid -- see note in
52 				   printing.c:traverse_fn_delete() */
53 	int size;
54 	int page_count;
55 	int status;
56 	int priority;
57 	time_t time;
58 	fstring fs_user;
59 	fstring fs_file;
60 } print_queue_struct;
61 
62 enum {LPSTAT_OK, LPSTAT_STOPPED, LPSTAT_ERROR};
63 
64 typedef struct {
65 	fstring message;
66 	size_t qcount;
67 	int status;
68 }  print_status_struct;
69 
70 /* Information for print jobs */
71 struct printjob {
72 	pid_t pid; /* which process launched the job */
73 	uint32_t jobid; /* the spoolss print job identifier */
74 	int sysjob; /* the system (lp) job number */
75 	int fd; /* file descriptor of open file if open */
76 	time_t starttime; /* when the job started spooling */
77 	int status; /* the status of this job */
78 	size_t size; /* the size of the job so far */
79 	int page_count;	/* then number of pages so far */
80 	bool spooled; /* has it been sent to the spooler yet? */
81 	bool smbjob; /* set if the job is a SMB job */
82 	fstring filename; /* the filename used to spool the file */
83 	fstring jobname; /* the job name given to us by the client */
84 	fstring user; /* the user who started the job */
85 	fstring clientmachine; /* The client machine which started this job */
86 	fstring queuename; /* service number of printer for this job */
87 	struct spoolss_DeviceMode *devmode;
88 };
89 
90 /* Information for print interfaces */
91 struct printif
92 {
93 	/* value of the 'printing' option for this service */
94 	enum printing_types type;
95 
96 	int (*queue_get)(const char *printer_name,
97 			 enum printing_types printing_type,
98 			 char *lpq_command,
99 			 print_queue_struct **q,
100 			 print_status_struct *status);
101 	int (*queue_pause)(int snum);
102 	int (*queue_resume)(int snum);
103 	int (*job_delete)(const char *sharename, const char *lprm_command, struct printjob *pjob);
104 	int (*job_pause)(int snum, struct printjob *pjob);
105 	int (*job_resume)(int snum, struct printjob *pjob);
106 	int (*job_submit)(int snum, struct printjob *pjob,
107 			  enum printing_types printing_type,
108 			  char *lpq_command);
109 };
110 
111 extern struct printif	generic_printif;
112 
113 #ifdef HAVE_CUPS
114 extern struct printif	cups_printif;
115 #endif /* HAVE_CUPS */
116 
117 #ifdef HAVE_IPRINT
118 extern struct printif	iprint_printif;
119 #endif /* HAVE_IPRINT */
120 
121 /* PRINT_MAX_JOBID is now defined in local.h */
122 #define UNIX_JOB_START PRINT_MAX_JOBID
123 #define NEXT_JOBID(j) ((j+1) % PRINT_MAX_JOBID > 0 ? (j+1) % PRINT_MAX_JOBID : 1)
124 
125 #define MAX_CACHE_VALID_TIME 3600
126 #define CUPS_DEFAULT_CONNECTION_TIMEOUT 30
127 
128 #ifndef PRINT_SPOOL_PREFIX
129 #define PRINT_SPOOL_PREFIX "smbprn."
130 #endif
131 #define PRINT_DATABASE_VERSION 8
132 
133 #ifdef AIX
134 #define DEFAULT_PRINTING PRINT_AIX
135 #define PRINTCAP_NAME "/etc/qconfig"
136 #endif
137 
138 #ifdef HPUX
139 #define DEFAULT_PRINTING PRINT_HPUX
140 #endif
141 
142 #ifdef QNX
143 #define DEFAULT_PRINTING PRINT_QNX
144 #endif
145 
146 #ifndef DEFAULT_PRINTING
147 #ifdef HAVE_CUPS
148 #define DEFAULT_PRINTING PRINT_CUPS
149 #define PRINTCAP_NAME "cups"
150 #elif defined(SYSV)
151 #define DEFAULT_PRINTING PRINT_SYSV
152 #define PRINTCAP_NAME "lpstat"
153 #else
154 #define DEFAULT_PRINTING PRINT_BSD
155 #define PRINTCAP_NAME "/etc/printcap"
156 #endif
157 #endif
158 
159 #ifndef PRINTCAP_NAME
160 #define PRINTCAP_NAME "/etc/printcap"
161 #endif
162 
163 /* There can be this many printing tdb's open, plus any locked ones. */
164 #define MAX_PRINT_DBS_OPEN 1
165 
166 struct tdb_print_db {
167 	struct tdb_print_db *next, *prev;
168 	struct tdb_context *tdb;
169 	int ref_count;
170 	fstring printer_name;
171 };
172 
173 /*
174  * Used for print notify
175  */
176 
177 #define NOTIFY_PID_LIST_KEY "NOTIFY_PID_LIST"
178 
179 /* The following definitions come from printing/printspoolss.c  */
180 
181 NTSTATUS print_spool_open(files_struct *fsp,
182 			  const char *fname,
183 			  uint64_t current_vuid);
184 
185 int print_spool_write(files_struct *fsp, const char *data, uint32_t size,
186 		      off_t offset, uint32_t *written);
187 
188 void print_spool_end(files_struct *fsp, enum file_close_type close_type);
189 
190 void print_spool_terminate(struct connection_struct *conn,
191 			   struct print_file_data *print_file);
192 uint16_t print_spool_rap_jobid(struct print_file_data *print_file);
193 
194 /* The following definitions come from printing/printing.c  */
195 
196 uint32_t sysjob_to_jobid_pdb(struct tdb_print_db *pdb, int sysjob);
197 uint32_t sysjob_to_jobid(int unix_jobid);
198 int jobid_to_sysjob_pdb(struct tdb_print_db *pdb, uint32_t jobid);
199 bool print_notify_register_pid(int snum);
200 bool print_notify_deregister_pid(int snum);
201 bool print_job_exists(const char* sharename, uint32_t jobid);
202 struct spoolss_DeviceMode *print_job_devmode(TALLOC_CTX *mem_ctx,
203 					     const char *sharename,
204 					     uint32_t jobid);
205 bool print_job_set_name(struct tevent_context *ev,
206 			struct messaging_context *msg_ctx,
207 			const char *sharename, uint32_t jobid, const char *name);
208 bool print_job_get_name(TALLOC_CTX *mem_ctx, const char *sharename, uint32_t jobid, char **name);
209 WERROR print_job_delete(const struct auth_session_info *server_info,
210 			struct messaging_context *msg_ctx,
211 			int snum, uint32_t jobid);
212 WERROR print_job_pause(const struct auth_session_info *server_info,
213 		     struct messaging_context *msg_ctx,
214 		     int snum, uint32_t jobid);
215 WERROR print_job_resume(const struct auth_session_info *server_info,
216 		      struct messaging_context *msg_ctx,
217 		      int snum, uint32_t jobid);
218 ssize_t print_job_write(struct tevent_context *ev,
219 			struct messaging_context *msg_ctx,
220 			int snum, uint32_t jobid, const char *buf, size_t size);
221 int print_queue_length(struct messaging_context *msg_ctx, int snum,
222 		       print_status_struct *pstatus);
223 WERROR print_job_start(const struct auth_session_info *server_info,
224 		       struct messaging_context *msg_ctx,
225 		       const char *clientmachine,
226 		       int snum, const char *docname, const char *filename,
227 		       struct spoolss_DeviceMode *devmode, uint32_t *_jobid);
228 void print_job_endpage(struct messaging_context *msg_ctx,
229 		       int snum, uint32_t jobid);
230 NTSTATUS print_job_end(struct messaging_context *msg_ctx, int snum,
231 		       uint32_t jobid, enum file_close_type close_type);
232 int print_queue_status(struct messaging_context *msg_ctx, int snum,
233 		       print_queue_struct **ppqueue,
234 		       print_status_struct *status);
235 WERROR print_queue_pause(const struct auth_session_info *server_info,
236 			 struct messaging_context *msg_ctx, int snum);
237 WERROR print_queue_resume(const struct auth_session_info *server_info,
238 			  struct messaging_context *msg_ctx, int snum);
239 WERROR print_queue_purge(const struct auth_session_info *server_info,
240 			 struct messaging_context *msg_ctx, int snum);
241 uint16_t pjobid_to_rap(const char* sharename, uint32_t jobid);
242 bool rap_to_pjobid(uint16_t rap_jobid, fstring sharename, uint32_t *pjobid);
243 void rap_jobid_delete(const char* sharename, uint32_t jobid);
244 bool print_backend_init(struct messaging_context *msg_ctx);
245 void printing_end(void);
246 
247 /* The following definitions come from printing/lpq_parse.c  */
248 
249 bool parse_lpq_entry(enum printing_types printing_type,char *line,
250 		     print_queue_struct *buf,
251 		     print_status_struct *status,bool first);
252 
253 /* The following definitions come from printing/printing_db.c  */
254 
255 struct tdb_print_db *get_print_db_byname(const char *printername);
256 void release_print_db( struct tdb_print_db *pdb);
257 void close_all_print_db(void);
258 TDB_DATA get_printer_notify_pid_list(struct tdb_context *tdb, const char *printer_name, bool cleanlist);
259 
260 void print_queue_receive(struct messaging_context *msg,
261 			 void *private_data,
262 			 uint32_t msg_type,
263 			 struct server_id server_id,
264 			 DATA_BLOB *data);
265 #endif /* PRINTING_H_ */
266