1*d8b80295SApple OSS Distributions /*
2*d8b80295SApple OSS Distributions * Copyright (c) 2020 Apple Inc. All rights reserved.
3*d8b80295SApple OSS Distributions *
4*d8b80295SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*d8b80295SApple OSS Distributions *
6*d8b80295SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*d8b80295SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*d8b80295SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*d8b80295SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*d8b80295SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*d8b80295SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*d8b80295SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*d8b80295SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*d8b80295SApple OSS Distributions *
15*d8b80295SApple OSS Distributions * Please obtain a copy of the License at
16*d8b80295SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*d8b80295SApple OSS Distributions *
18*d8b80295SApple OSS Distributions * The Original Code and all software distributed under the License are
19*d8b80295SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*d8b80295SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*d8b80295SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*d8b80295SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*d8b80295SApple OSS Distributions * Please see the License for the specific language governing rights and
24*d8b80295SApple OSS Distributions * limitations under the License.
25*d8b80295SApple OSS Distributions *
26*d8b80295SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*d8b80295SApple OSS Distributions */
28*d8b80295SApple OSS Distributions
29*d8b80295SApple OSS Distributions #undef _task_user_
30*d8b80295SApple OSS Distributions #include <TargetConditionals.h>
31*d8b80295SApple OSS Distributions #include <stdbool.h>
32*d8b80295SApple OSS Distributions
33*d8b80295SApple OSS Distributions #include <mach/kern_return.h>
34*d8b80295SApple OSS Distributions #include <mach/mach_param.h>
35*d8b80295SApple OSS Distributions #include <mach/mach_port.h>
36*d8b80295SApple OSS Distributions #include <mach/message.h>
37*d8b80295SApple OSS Distributions #include <mach/mig_errors.h>
38*d8b80295SApple OSS Distributions #include <mach/task_internal.h>
39*d8b80295SApple OSS Distributions #include <mach/vm_map.h>
40*d8b80295SApple OSS Distributions
41*d8b80295SApple OSS Distributions extern mach_port_t mach_task_self_;
42*d8b80295SApple OSS Distributions
43*d8b80295SApple OSS Distributions boolean_t
mach_task_is_self(task_name_t task)44*d8b80295SApple OSS Distributions mach_task_is_self(task_name_t task)
45*d8b80295SApple OSS Distributions {
46*d8b80295SApple OSS Distributions boolean_t is_self;
47*d8b80295SApple OSS Distributions kern_return_t kr;
48*d8b80295SApple OSS Distributions
49*d8b80295SApple OSS Distributions if (task == mach_task_self_) {
50*d8b80295SApple OSS Distributions return TRUE;
51*d8b80295SApple OSS Distributions }
52*d8b80295SApple OSS Distributions
53*d8b80295SApple OSS Distributions kr = _kernelrpc_mach_task_is_self(task, &is_self);
54*d8b80295SApple OSS Distributions
55*d8b80295SApple OSS Distributions return kr == KERN_SUCCESS && is_self;
56*d8b80295SApple OSS Distributions }
57*d8b80295SApple OSS Distributions
58*d8b80295SApple OSS Distributions
59*d8b80295SApple OSS Distributions kern_return_t
mach_ports_register(task_t target_task,mach_port_array_t init_port_set,mach_msg_type_number_t init_port_setCnt)60*d8b80295SApple OSS Distributions mach_ports_register(
61*d8b80295SApple OSS Distributions task_t target_task,
62*d8b80295SApple OSS Distributions mach_port_array_t init_port_set,
63*d8b80295SApple OSS Distributions mach_msg_type_number_t init_port_setCnt)
64*d8b80295SApple OSS Distributions {
65*d8b80295SApple OSS Distributions mach_port_t array[TASK_PORT_REGISTER_MAX] = { };
66*d8b80295SApple OSS Distributions kern_return_t kr;
67*d8b80295SApple OSS Distributions
68*d8b80295SApple OSS Distributions if (init_port_setCnt > TASK_PORT_REGISTER_MAX) {
69*d8b80295SApple OSS Distributions return KERN_INVALID_ARGUMENT;
70*d8b80295SApple OSS Distributions }
71*d8b80295SApple OSS Distributions
72*d8b80295SApple OSS Distributions for (mach_msg_type_number_t i = 0; i < init_port_setCnt; i++) {
73*d8b80295SApple OSS Distributions array[i] = init_port_set[i];
74*d8b80295SApple OSS Distributions }
75*d8b80295SApple OSS Distributions
76*d8b80295SApple OSS Distributions kr = _kernelrpc_mach_ports_register3(target_task, array[0], array[1], array[2]);
77*d8b80295SApple OSS Distributions return kr;
78*d8b80295SApple OSS Distributions }
79*d8b80295SApple OSS Distributions
80*d8b80295SApple OSS Distributions kern_return_t
mach_ports_lookup(task_t target_task,mach_port_array_t * init_port_set,mach_msg_type_number_t * init_port_setCnt)81*d8b80295SApple OSS Distributions mach_ports_lookup(
82*d8b80295SApple OSS Distributions task_t target_task,
83*d8b80295SApple OSS Distributions mach_port_array_t *init_port_set,
84*d8b80295SApple OSS Distributions mach_msg_type_number_t *init_port_setCnt)
85*d8b80295SApple OSS Distributions {
86*d8b80295SApple OSS Distributions vm_size_t size = TASK_PORT_REGISTER_MAX * sizeof(mach_port_t);
87*d8b80295SApple OSS Distributions mach_port_array_t array;
88*d8b80295SApple OSS Distributions vm_address_t addr = 0;
89*d8b80295SApple OSS Distributions kern_return_t kr;
90*d8b80295SApple OSS Distributions
91*d8b80295SApple OSS Distributions kr = vm_allocate(target_task, &addr, size, VM_FLAGS_ANYWHERE);
92*d8b80295SApple OSS Distributions array = (mach_port_array_t)addr;
93*d8b80295SApple OSS Distributions if (kr != KERN_SUCCESS) {
94*d8b80295SApple OSS Distributions return kr;
95*d8b80295SApple OSS Distributions }
96*d8b80295SApple OSS Distributions
97*d8b80295SApple OSS Distributions
98*d8b80295SApple OSS Distributions kr = _kernelrpc_mach_ports_lookup3(target_task,
99*d8b80295SApple OSS Distributions &array[0], &array[1], &array[2]);
100*d8b80295SApple OSS Distributions if (kr != KERN_SUCCESS) {
101*d8b80295SApple OSS Distributions vm_deallocate(target_task, addr, size);
102*d8b80295SApple OSS Distributions return kr;
103*d8b80295SApple OSS Distributions }
104*d8b80295SApple OSS Distributions
105*d8b80295SApple OSS Distributions *init_port_set = array;
106*d8b80295SApple OSS Distributions *init_port_setCnt = TASK_PORT_REGISTER_MAX;
107*d8b80295SApple OSS Distributions return KERN_SUCCESS;
108*d8b80295SApple OSS Distributions }
109