1*4f1223e8SApple OSS Distributions /*
2*4f1223e8SApple OSS Distributions * Copyright (c) 2020 Apple Inc. All rights reserved.
3*4f1223e8SApple OSS Distributions *
4*4f1223e8SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*4f1223e8SApple OSS Distributions *
6*4f1223e8SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*4f1223e8SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*4f1223e8SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*4f1223e8SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*4f1223e8SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*4f1223e8SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*4f1223e8SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*4f1223e8SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*4f1223e8SApple OSS Distributions *
15*4f1223e8SApple OSS Distributions * Please obtain a copy of the License at
16*4f1223e8SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*4f1223e8SApple OSS Distributions *
18*4f1223e8SApple OSS Distributions * The Original Code and all software distributed under the License are
19*4f1223e8SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*4f1223e8SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*4f1223e8SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*4f1223e8SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*4f1223e8SApple OSS Distributions * Please see the License for the specific language governing rights and
24*4f1223e8SApple OSS Distributions * limitations under the License.
25*4f1223e8SApple OSS Distributions *
26*4f1223e8SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*4f1223e8SApple OSS Distributions */
28*4f1223e8SApple OSS Distributions
29*4f1223e8SApple OSS Distributions #undef _task_user_
30*4f1223e8SApple OSS Distributions #include <TargetConditionals.h>
31*4f1223e8SApple OSS Distributions #include <stdbool.h>
32*4f1223e8SApple OSS Distributions
33*4f1223e8SApple OSS Distributions #include <mach/kern_return.h>
34*4f1223e8SApple OSS Distributions #include <mach/mach_param.h>
35*4f1223e8SApple OSS Distributions #include <mach/mach_port.h>
36*4f1223e8SApple OSS Distributions #include <mach/message.h>
37*4f1223e8SApple OSS Distributions #include <mach/mig_errors.h>
38*4f1223e8SApple OSS Distributions #include <mach/task_internal.h>
39*4f1223e8SApple OSS Distributions #include <mach/vm_map.h>
40*4f1223e8SApple OSS Distributions
41*4f1223e8SApple OSS Distributions extern mach_port_t mach_task_self_;
42*4f1223e8SApple OSS Distributions
43*4f1223e8SApple OSS Distributions boolean_t
mach_task_is_self(task_name_t task)44*4f1223e8SApple OSS Distributions mach_task_is_self(task_name_t task)
45*4f1223e8SApple OSS Distributions {
46*4f1223e8SApple OSS Distributions boolean_t is_self;
47*4f1223e8SApple OSS Distributions kern_return_t kr;
48*4f1223e8SApple OSS Distributions
49*4f1223e8SApple OSS Distributions if (task == mach_task_self_) {
50*4f1223e8SApple OSS Distributions return TRUE;
51*4f1223e8SApple OSS Distributions }
52*4f1223e8SApple OSS Distributions
53*4f1223e8SApple OSS Distributions kr = _kernelrpc_mach_task_is_self(task, &is_self);
54*4f1223e8SApple OSS Distributions
55*4f1223e8SApple OSS Distributions return kr == KERN_SUCCESS && is_self;
56*4f1223e8SApple OSS Distributions }
57*4f1223e8SApple OSS Distributions
58*4f1223e8SApple OSS Distributions
59*4f1223e8SApple 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*4f1223e8SApple OSS Distributions mach_ports_register(
61*4f1223e8SApple OSS Distributions task_t target_task,
62*4f1223e8SApple OSS Distributions mach_port_array_t init_port_set,
63*4f1223e8SApple OSS Distributions mach_msg_type_number_t init_port_setCnt)
64*4f1223e8SApple OSS Distributions {
65*4f1223e8SApple OSS Distributions mach_port_t array[TASK_PORT_REGISTER_MAX] = { };
66*4f1223e8SApple OSS Distributions kern_return_t kr;
67*4f1223e8SApple OSS Distributions
68*4f1223e8SApple OSS Distributions if (init_port_setCnt > TASK_PORT_REGISTER_MAX) {
69*4f1223e8SApple OSS Distributions return KERN_INVALID_ARGUMENT;
70*4f1223e8SApple OSS Distributions }
71*4f1223e8SApple OSS Distributions
72*4f1223e8SApple OSS Distributions for (mach_msg_type_number_t i = 0; i < init_port_setCnt; i++) {
73*4f1223e8SApple OSS Distributions array[i] = init_port_set[i];
74*4f1223e8SApple OSS Distributions }
75*4f1223e8SApple OSS Distributions
76*4f1223e8SApple OSS Distributions kr = _kernelrpc_mach_ports_register3(target_task, array[0], array[1], array[2]);
77*4f1223e8SApple OSS Distributions return kr;
78*4f1223e8SApple OSS Distributions }
79*4f1223e8SApple OSS Distributions
80*4f1223e8SApple 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*4f1223e8SApple OSS Distributions mach_ports_lookup(
82*4f1223e8SApple OSS Distributions task_t target_task,
83*4f1223e8SApple OSS Distributions mach_port_array_t *init_port_set,
84*4f1223e8SApple OSS Distributions mach_msg_type_number_t *init_port_setCnt)
85*4f1223e8SApple OSS Distributions {
86*4f1223e8SApple OSS Distributions vm_size_t size = TASK_PORT_REGISTER_MAX * sizeof(mach_port_t);
87*4f1223e8SApple OSS Distributions mach_port_array_t array;
88*4f1223e8SApple OSS Distributions vm_address_t addr = 0;
89*4f1223e8SApple OSS Distributions kern_return_t kr;
90*4f1223e8SApple OSS Distributions
91*4f1223e8SApple OSS Distributions kr = vm_allocate(target_task, &addr, size, VM_FLAGS_ANYWHERE);
92*4f1223e8SApple OSS Distributions array = (mach_port_array_t)addr;
93*4f1223e8SApple OSS Distributions if (kr != KERN_SUCCESS) {
94*4f1223e8SApple OSS Distributions return kr;
95*4f1223e8SApple OSS Distributions }
96*4f1223e8SApple OSS Distributions
97*4f1223e8SApple OSS Distributions
98*4f1223e8SApple OSS Distributions kr = _kernelrpc_mach_ports_lookup3(target_task,
99*4f1223e8SApple OSS Distributions &array[0], &array[1], &array[2]);
100*4f1223e8SApple OSS Distributions if (kr != KERN_SUCCESS) {
101*4f1223e8SApple OSS Distributions vm_deallocate(target_task, addr, size);
102*4f1223e8SApple OSS Distributions return kr;
103*4f1223e8SApple OSS Distributions }
104*4f1223e8SApple OSS Distributions
105*4f1223e8SApple OSS Distributions *init_port_set = array;
106*4f1223e8SApple OSS Distributions *init_port_setCnt = TASK_PORT_REGISTER_MAX;
107*4f1223e8SApple OSS Distributions return KERN_SUCCESS;
108*4f1223e8SApple OSS Distributions }
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