xref: /xnu-11215.61.5/security/mac_mach_internal.h (revision 4f1223e81cd707a65cc109d0b8ad6653699da3c4)
1 /*
2  * Copyright (c) 2007 Apple Inc. All rights reserved.
3  *
4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5  *
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.
14  *
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
20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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.
25  *
26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27  */
28 /*-
29  * Copyright (c) 2005 SPARTA, Inc.
30  * All rights reserved.
31  *
32  * Redistribution and use in source and binary forms, with or without
33  * modification, are permitted provided that the following conditions
34  * are met:
35  * 1. Redistributions of source code must retain the above copyright
36  *    notice, this list of conditions and the following disclaimer.
37  * 2. Redistributions in binary form must reproduce the above copyright
38  *    notice, this list of conditions and the following disclaimer in the
39  *    documentation and/or other materials provided with the distribution.
40  *
41  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  */
53 
54 #ifndef _SECURITY_MAC_MACH_INTERNAL_H_
55 #define _SECURITY_MAC_MACH_INTERNAL_H_
56 
57 #ifndef PRIVATE
58 #warning "MAC policy is not KPI, see Technical Q&A QA1574, this header will be removed in next version"
59 #endif
60 
61 #include <mach/mach_types.h>
62 #include <stdint.h>
63 
64 /* mac_do_machexc() flags */
65 #define	MAC_DOEXCF_TRACED	0x01	/* Only do mach exeception if
66 					   being ptrace()'ed */
67 struct exception_action;
68 struct proc;
69 struct uthread;
70 struct task;
71 
72 int	mac_do_machexc(int64_t code, int64_t subcode, uint32_t flags __unused);
73 int	mac_schedule_userret(void);
74 
75 /* telemetry */
76 int mac_schedule_telemetry(void);
77 
78 #if CONFIG_MACF
79 void mac_policy_init(void);
80 void mac_policy_initmach(void);
81 
82 /* tasks */
83 int	mac_task_check_expose_task(struct task *t, mach_task_flavor_t flavor);
84 int	mac_task_check_task_id_token_get_task(struct task *t, mach_task_flavor_t flavor);
85 int	mac_task_check_set_host_special_port(struct task *task,
86 	    int id, struct ipc_port *port);
87 int	mac_task_check_set_host_exception_port(struct task *task,
88 	    unsigned int exception);
89 int	mac_task_check_set_host_exception_ports(struct task *task,
90 	    unsigned int exception_mask);
91 int	mac_task_check_get_task_special_port(struct task *task,
92 	    struct task *target, int which);
93 int	mac_task_check_set_task_special_port(struct task *task,
94 	    struct task *target, int which, struct ipc_port *port);
95 int	mac_task_check_set_task_exception_ports(struct task *task,
96 	    struct task *target, unsigned int exception_mask, int new_behavior);
97 int	mac_task_check_set_thread_exception_ports(struct task *task,
98 	    struct task *target, unsigned int exception_mask, int new_behavior);
99 int mac_task_check_get_movable_control_port(void);
100 int mac_task_check_dyld_process_info_notify_register(void);
101 
102 /* See rdar://problem/58989880 */
103 #ifndef bitstr_test
104 #   define bitstr_test(name, bit) ((name)[((bit) >> 3)] & (1 << ((bit) & 0x7)))
105 #endif /* ! bitstr_test */
106 
107 typedef int (*mac_task_mach_filter_cbfunc_t)(struct proc *bsdinfo, int num);
108 typedef int (*mac_task_kobj_filter_cbfunc_t)(struct proc *bsdinfo, int msgid, int index);
109 extern mac_task_mach_filter_cbfunc_t mac_task_mach_trap_evaluate;
110 extern mac_task_kobj_filter_cbfunc_t mac_task_kobj_msg_evaluate;
111 extern const int mach_trap_count;
112 extern int mach_kobj_count;
113 
114 uint8_t *mac_task_get_mach_filter_mask(struct task *task);
115 uint8_t *mac_task_get_kobj_filter_mask(struct task *task);
116 
117 void mac_task_set_mach_filter_mask(struct task *task, uint8_t *maskptr);
118 void mac_task_set_kobj_filter_mask(struct task *task, uint8_t *maskptr);
119 int  mac_task_register_filter_callbacks(
120 		const mac_task_mach_filter_cbfunc_t mach_cbfunc,
121 		const mac_task_kobj_filter_cbfunc_t kobj_cbfunc);
122 
123 /* threads */
124 void	act_set_astmacf(struct thread *);
125 void	mac_thread_userret(struct thread *);
126 void	mac_thread_telemetry(struct thread *, int, void *, size_t);
127 
128 /* exception actions */
129 struct label *mac_exc_create_label(struct exception_action *action);
130 struct label *mac_exc_label(struct exception_action *action);
131 void mac_exc_set_label(struct exception_action *action, struct label *label);
132 void mac_exc_free_label(struct label *label);
133 
134 void mac_exc_associate_action_label(struct exception_action *action, struct label *label);
135 void mac_exc_free_action_label(struct exception_action *action);
136 
137 int mac_exc_update_action_label(struct exception_action *action, struct label *newlabel);
138 int mac_exc_inherit_action_label(struct exception_action *parent, struct exception_action *child);
139 int mac_exc_update_task_crash_label(struct task *task, struct label *newlabel);
140 
141 int mac_exc_action_check_exception_send(struct task *victim_task, struct exception_action *action);
142 
143 void mac_proc_notify_exec_complete(struct proc *proc);
144 int mac_proc_check_remote_thread_create(struct task *task, int flavor, thread_state_t new_state, mach_msg_type_number_t new_state_count);
145 void mac_proc_notify_service_port_derive(struct mach_service_port_info *sp_info);
146 
147 struct label *mac_exc_create_label_for_proc(struct proc *proc);
148 struct label *mac_exc_create_label_for_current_proc(void);
149 
150 #endif /* MAC */
151 
152 #endif	/* !_SECURITY_MAC_MACH_INTERNAL_H_ */
153