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1c79356b 1/*
91447636 2 * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
1c79356b 3 *
2d21ac55 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b 5 *
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6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
8f6c56a5 14 *
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15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5
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20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
8f6c56a5 25 *
2d21ac55 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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27 */
28/*
29 * @OSF_FREE_COPYRIGHT@
30 */
31/*
32 * Mach Operating System
33 * Copyright (c) 1991,1990,1989 Carnegie Mellon University
34 * All Rights Reserved.
35 *
36 * Permission to use, copy, modify and distribute this software and its
37 * documentation is hereby granted, provided that both the copyright
38 * notice and this permission notice appear in all copies of the
39 * software, derivative works or modified versions, and any portions
40 * thereof, and that both notices appear in supporting documentation.
41 *
42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
43 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
44 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
45 *
46 * Carnegie Mellon requests users of this software to return to
47 *
48 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
49 * School of Computer Science
50 * Carnegie Mellon University
51 * Pittsburgh PA 15213-3890
52 *
53 * any improvements or extensions that they make and grant Carnegie Mellon
54 * the rights to redistribute these changes.
55 */
56/*
57 */
58/*
59 * File: mach/mach_port.defs
60 * Author: Rich Draves
61 *
62 * Exported kernel calls.
63 */
64
65subsystem
66#if KERNEL_SERVER
67 KernelServer
55e303ae 68#endif /* KERNEL_SERVER */
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69 mach_port 3200;
70
71#include <mach/std_types.defs>
72#include <mach/mach_types.defs>
73#include <mach_debug/mach_debug_types.defs>
74
75/*
76 * Returns the set of port and port set names
77 * to which the target task has access, along with
78 * the type (set or port) for each name.
79 */
80
81routine mach_port_names(
82 task : ipc_space_t;
83 out names : mach_port_name_array_t;
84 out types : mach_port_type_array_t);
85
86/*
87 * Returns the type (set or port) for the port name
88 * within the target task. Also indicates whether
89 * there is a dead-name request for the name.
90 */
91
92routine mach_port_type(
93 task : ipc_space_t;
94 name : mach_port_name_t;
95 out ptype : mach_port_type_t);
96
97/*
98 * Changes the name by which a port (or port set) is known to
99 * the target task. The new name can't be in use. The
100 * old name becomes available for recycling.
101 */
102
103routine mach_port_rename(
104 task : ipc_space_t;
105 old_name : mach_port_name_t;
106 new_name : mach_port_name_t);
107
108/*
109 * Allocates the specified kind of object, with the given name.
110 * The right must be one of
111 * MACH_PORT_RIGHT_RECEIVE
112 * MACH_PORT_RIGHT_PORT_SET
113 * MACH_PORT_RIGHT_DEAD_NAME
114 * New port sets are empty. New ports don't have any
115 * send/send-once rights or queued messages. The make-send
116 * count is zero and their queue limit is MACH_PORT_QLIMIT_DEFAULT.
117 * New sets, ports, and dead names have one user reference.
118 */
119
120routine mach_port_allocate_name(
121 task : ipc_space_t;
122 right : mach_port_right_t;
123 name : mach_port_name_t);
124
125/*
126 * Allocates the specified kind of object.
127 * The right must be one of
128 * MACH_PORT_RIGHT_RECEIVE
129 * MACH_PORT_RIGHT_PORT_SET
130 * MACH_PORT_RIGHT_DEAD_NAME
131 * Like port_allocate_name, but the kernel picks a name.
132 * It can use any name not associated with a right.
133 */
134
135routine mach_port_allocate(
136 task : ipc_space_t;
137 right : mach_port_right_t;
138 out name : mach_port_name_t);
139
140/*
141 * Destroys all rights associated with the name and makes it
142 * available for recycling immediately. The name can be a
143 * port (possibly with multiple user refs), a port set, or
144 * a dead name (again, with multiple user refs).
145 */
146
147routine mach_port_destroy(
148 task : ipc_space_t;
149 name : mach_port_name_t);
150
151/*
152 * Releases one send/send-once/dead-name user ref.
153 * Just like mach_port_mod_refs -1, but deduces the
154 * correct type of right. This allows a user task
155 * to release a ref for a port without worrying
156 * about whether the port has died or not.
157 */
158
159routine mach_port_deallocate(
160 task : ipc_space_t;
161 name : mach_port_name_t);
162
163/*
164 * A port set always has one user ref.
165 * A send-once right always has one user ref.
166 * A dead name always has one or more user refs.
167 * A send right always has one or more user refs.
168 * A receive right always has one user ref.
169 * The right must be one of
170 * MACH_PORT_RIGHT_RECEIVE
171 * MACH_PORT_RIGHT_PORT_SET
172 * MACH_PORT_RIGHT_DEAD_NAME
173 * MACH_PORT_RIGHT_SEND
174 * MACH_PORT_RIGHT_SEND_ONCE
175 */
176
177routine mach_port_get_refs(
178 task : ipc_space_t;
179 name : mach_port_name_t;
180 right : mach_port_right_t;
181 out refs : mach_port_urefs_t);
182
183/*
184 * The delta is a signed change to the task's
185 * user ref count for the right. Only dead names
186 * and send rights can have a positive delta.
187 * The resulting user ref count can't be negative.
188 * If it is zero, the right is deallocated.
189 * If the name isn't a composite right, it becomes
190 * available for recycling. The right must be one of
191 * MACH_PORT_RIGHT_RECEIVE
192 * MACH_PORT_RIGHT_PORT_SET
193 * MACH_PORT_RIGHT_DEAD_NAME
194 * MACH_PORT_RIGHT_SEND
195 * MACH_PORT_RIGHT_SEND_ONCE
196 */
197
198routine mach_port_mod_refs(
199 task : ipc_space_t;
200 name : mach_port_name_t;
201 right : mach_port_right_t;
202 delta : mach_port_delta_t);
203
9bccf70c 204skip;
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205
206/*
207 * Only valid for receive rights.
208 * Sets the make-send count for the port.
209 */
210routine mach_port_set_mscount(
211 task : ipc_space_t;
212 name : mach_port_name_t;
213 mscount : mach_port_mscount_t);
214
215/*
216 * Only valid for port sets. Returns a list of
217 * the members.
218 */
219
220routine mach_port_get_set_status(
221 task : ipc_space_t;
222 name : mach_port_name_t;
223 out members : mach_port_name_array_t);
224
225/*
226 * Puts the member port (the task must have receive rights)
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227 * into the after port set. If the port is already a member
228 * of any set(s), it is atomically removed from those sets as
229 * part of this operation. (If after is MACH_PORT_NULL, the
230 * port is still removed from all current sets).
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231 */
232
233routine mach_port_move_member(
234 task : ipc_space_t;
235 member : mach_port_name_t;
236 after : mach_port_name_t);
237
238/*
239 * Requests a notification from the kernel. The request
240 * must supply the send-once right which is used for
241 * the notification. If a send-once right was previously
242 * registered, it is returned. The msg_id must be one of
243 * MACH_NOTIFY_PORT_DESTROYED (receive rights)
244 * MACH_NOTIFY_DEAD_NAME (send/receive/send-once rights)
245 * MACH_NOTIFY_NO_SENDERS (receive rights)
246 *
247 * The sync value specifies whether a notification should
248 * get sent immediately, if appropriate. The exact meaning
249 * depends on the notification:
250 * MACH_NOTIFY_PORT_DESTROYED: must be zero.
251 * MACH_NOTIFY_DEAD_NAME: if non-zero, then name can be dead,
252 * and the notification gets sent immediately.
253 * If zero, then name can't be dead.
254 * MACH_NOTIFY_NO_SENDERS: the notification gets sent
255 * immediately if the current mscount is greater
256 * than or equal to the sync value and there are no
257 * extant send rights.
258 */
259
260routine mach_port_request_notification(
261 task : ipc_space_t;
262 name : mach_port_name_t;
263 msgid : mach_msg_id_t;
264 sync : mach_port_mscount_t;
265 notify : mach_port_send_once_t;
0b4e3aa0 266 out previous : mach_port_move_send_once_t);
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267
268/*
269 * Inserts the specified rights into the target task,
270 * using the specified name. If inserting send/receive
271 * rights and the task already has send/receive rights
272 * for the port, then the names must agree. In any case,
273 * the task gains a user ref for the port.
274 */
275
276routine mach_port_insert_right(
277 task : ipc_space_t;
278 name : mach_port_name_t;
279 poly : mach_port_poly_t);
280
281/*
282 * Returns the specified right for the named port
283 * in the target task, extracting that right from
284 * the target task. The target task loses a user
285 * ref and the name may be available for recycling.
286 * msgt_name must be one of
287 * MACH_MSG_TYPE_MOVE_RECEIVE
288 * MACH_MSG_TYPE_COPY_SEND
289 * MACH_MSG_TYPE_MAKE_SEND
290 * MACH_MSG_TYPE_MOVE_SEND
291 * MACH_MSG_TYPE_MAKE_SEND_ONCE
292 * MACH_MSG_TYPE_MOVE_SEND_ONCE
293 */
294
295routine mach_port_extract_right(
296 task : ipc_space_t;
297 name : mach_port_name_t;
298 msgt_name : mach_msg_type_name_t;
299 out poly : mach_port_poly_t);
300
301/*
302 * Only valid for receive rights.
303 * Sets the sequence number for the port.
304 */
305
306routine mach_port_set_seqno(
307 task : ipc_space_t;
308 name : mach_port_name_t;
309 seqno : mach_port_seqno_t);
310
311/*
312 * Returns information about a port.
313 */
314
315routine mach_port_get_attributes(
316 task : ipc_space_t;
317 name : mach_port_name_t;
318 flavor : mach_port_flavor_t;
319 out port_info_out : mach_port_info_t, CountInOut);
320
321/*
322 * Set attributes of a port
323 */
324
325routine mach_port_set_attributes(
326 task : ipc_space_t;
327 name : mach_port_name_t;
328 flavor : mach_port_flavor_t;
329 port_info : mach_port_info_t);
330
331
332/*
333 * Allocates the specified kind of object, qos version.
334 * The right must be
335 * MACH_PORT_RIGHT_RECEIVE
336 * Like port_allocate_name, but the kernel picks a name.
337 * It can use any name not associated with a right.
338 */
339
340routine mach_port_allocate_qos(
341 task : ipc_space_t;
342 right : mach_port_right_t;
343 inout qos : mach_port_qos_t;
344 out name : mach_port_name_t);
345
9bccf70c 346
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347/*
348 * Generic interface to allocation various kinds of ports.
349 * Should never be called directly by users (at least not
350 * unless they are exceedingly masochistic).
351 */
352
353routine mach_port_allocate_full(
354 task : ipc_space_t;
355 right : mach_port_right_t;
9bccf70c 356 proto : mach_port_t;
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357 inout qos : mach_port_qos_t;
358 inout name : mach_port_name_t);
359
360
361/*
362 * Pre-expand task port name space.
363 */
364routine task_set_port_space(
365 task : ipc_space_t;
366 table_entries : int);
367
368
369/*
370 * Returns the exact number of extant send rights
371 * for the given receive right.
372 * This call is only valid on MACH_IPC_DEBUG kernels.
373 * Otherwise, KERN_FAILURE is returned.
374 */
375routine mach_port_get_srights(
376 task : ipc_space_t;
377 name : mach_port_name_t;
378 out srights : mach_port_rights_t);
379
380
381/*
382 * Returns information about an IPC space.
383 * This call is only valid on MACH_IPC_DEBUG kernels.
384 * Otherwise, KERN_FAILURE is returned.
385 */
386routine mach_port_space_info(
387 task : ipc_space_t;
91447636 388 out space_info : ipc_info_space_t;
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389 out table_info : ipc_info_name_array_t;
390 out tree_info : ipc_info_tree_name_array_t);
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391
392/*
393 * Returns information about the dead-name requests
394 * registered with the named receive right.
395 * This call is only valid on MACH_IPC_DEBUG kernels.
396 * Otherwise, KERN_FAILURE is returned.
397 */
398routine mach_port_dnrequest_info(
399 task : ipc_space_t;
400 name : mach_port_name_t;
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401 out dnr_total : unsigned; /* total size of table */
402 out dnr_used : unsigned); /* amount used */
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403
404/*
405 * Return the type and address of the kernel object
406 * that the given send/receive right represents.
407 * This call is only valid on MACH_IPC_DEBUG kernels.
408 * Otherwise, KERN_FAILURE is returned.
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409 *
410 * This interface is DEPRECATED in favor of the new
411 * mach_port_kernel_object64() call (see below).
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412 */
413routine mach_port_kernel_object(
414 task : ipc_space_t;
415 name : mach_port_name_t;
416 out object_type : unsigned;
b0d623f7 417 out object_addr : unsigned);
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418
419
420/*
421 * Inserts the specified rights into the portset identified
422 * by the <task, pset> pair. The results of passing in the
423 * Poly argument via the supplied disposition must yield a
424 * receive right.
425 *
426 * If the <task,pset> pair does not represent a valid portset
427 * KERN_INVALID_RIGHT is returned.
428 *
429 * If the passed in name argument does not represent a receive
430 * right, KERN_INVALID_CAPABILITY will be returned.
431 *
432 * If the port represented by the receive right is already in
433 * the portset, KERN_ALREADY_IN_SET is returned.
434 */
435routine mach_port_insert_member(
436 task : ipc_space_t;
437 name : mach_port_name_t;
438 pset : mach_port_name_t);
439
440/*
441 * Extracts the specified right from the named portset
442 * in the target task.
443 * the target task. The target task loses a user
444 * ref and the name may be available for recycling.
445 * msgt_name must be one of
446 * MACH_MSG_TYPE_MOVE_RECEIVE
447 * MACH_MSG_TYPE_COPY_SEND
448 * MACH_MSG_TYPE_MAKE_SEND
449 * MACH_MSG_TYPE_MOVE_SEND
450 * MACH_MSG_TYPE_MAKE_SEND_ONCE
451 * MACH_MSG_TYPE_MOVE_SEND_ONCE
452 */
453
454routine mach_port_extract_member(
455 task : ipc_space_t;
456 name : mach_port_name_t;
457 pset : mach_port_name_t);
458
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459/*
460 * Only valid for receive rights.
461 * Gets the context pointer for the port.
462 */
463
464routine mach_port_get_context(
465 task : ipc_space_t;
466 name : mach_port_name_t;
467 out context : mach_vm_address_t);
468
469/*
470 * Only valid for receive rights.
471 * Sets the context pointer for the port.
472 */
473
474routine mach_port_set_context(
475 task : ipc_space_t;
476 name : mach_port_name_t;
477 context : mach_vm_address_t);
478
479/*
480 * Return the type and address of the kernel object
481 * that the given send/receive right represents.
482 * This call is only valid on MACH_IPC_DEBUG kernels.
483 * Otherwise, KERN_FAILURE is returned.
484 */
485routine mach_port_kobject(
486 task : ipc_space_t;
487 name : mach_port_name_t;
488 out object_type : natural_t;
489 out object_addr : mach_vm_address_t);
490
491
2d21ac55 492/* vim: set ft=c : */