1 | /* |
2 | * Copyright (c) 2016 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 | #ifndef _REASON_H_ |
30 | #define _REASON_H_ |
31 | |
32 | #include <stdint.h> |
33 | |
34 | __BEGIN_DECLS |
35 | |
36 | #ifdef KERNEL_PRIVATE |
37 | |
38 | #include <kern/kern_cdata.h> |
39 | |
40 | #ifdef XNU_KERNEL_PRIVATE |
41 | #include <kern/locks.h> |
42 | |
43 | typedef struct os_reason { |
44 | decl_lck_mtx_data(, osr_lock) |
45 | unsigned int osr_refcount; |
46 | uint32_t osr_namespace; |
47 | uint64_t osr_code; |
48 | uint64_t osr_flags; |
49 | uint32_t osr_bufsize; |
50 | struct kcdata_descriptor osr_kcd_descriptor; |
51 | char *osr_kcd_buf; |
52 | } *os_reason_t; |
53 | |
54 | #define OS_REASON_NULL ((os_reason_t) 0) |
55 | |
56 | /* We only include 800 bytes of the exit reason description to not blow through the panic buffer */ |
57 | #define LAUNCHD_PANIC_REASON_STRING_MAXLEN "800" |
58 | |
59 | void os_reason_init(void); |
60 | |
61 | os_reason_t build_userspace_exit_reason(uint32_t reason_namespace, uint64_t reason_code, user_addr_t payload, uint32_t payload_size, |
62 | user_addr_t reason_string, uint64_t reason_flags); |
63 | char *launchd_exit_reason_get_string_desc(os_reason_t exit_reason); |
64 | |
65 | /* The blocking allocation is currently not exported to KEXTs */ |
66 | int os_reason_alloc_buffer(os_reason_t cur_reason, uint32_t osr_bufsize); |
67 | |
68 | #else /* XNU_KERNEL_PRIVATE */ |
69 | |
70 | typedef void * os_reason_t; |
71 | |
72 | #endif /* XNU_KERNEL_PRIVATE */ |
73 | |
74 | os_reason_t os_reason_create(uint32_t osr_namespace, uint64_t osr_code); |
75 | int os_reason_alloc_buffer_noblock(os_reason_t cur_reason, uint32_t osr_bufsize); |
76 | struct kcdata_descriptor * os_reason_get_kcdata_descriptor(os_reason_t cur_reason); |
77 | void os_reason_ref(os_reason_t cur_reason); |
78 | void os_reason_free(os_reason_t cur_reason); |
79 | |
80 | #endif /* KERNEL_PRIVATE */ |
81 | |
82 | /* |
83 | * Reason namespaces. |
84 | */ |
85 | #define OS_REASON_INVALID 0 |
86 | #define OS_REASON_JETSAM 1 |
87 | #define OS_REASON_SIGNAL 2 |
88 | #define OS_REASON_CODESIGNING 3 |
89 | #define OS_REASON_HANGTRACER 4 |
90 | #define OS_REASON_TEST 5 |
91 | #define OS_REASON_DYLD 6 |
92 | #define OS_REASON_LIBXPC 7 |
93 | #define OS_REASON_OBJC 8 |
94 | #define OS_REASON_EXEC 9 |
95 | #define OS_REASON_SPRINGBOARD 10 |
96 | #define OS_REASON_TCC 11 |
97 | #define OS_REASON_REPORTCRASH 12 |
98 | #define OS_REASON_COREANIMATION 13 |
99 | #define OS_REASON_AGGREGATED 14 |
100 | #define OS_REASON_ASSERTIOND 15 |
101 | #define OS_REASON_SKYWALK 16 |
102 | #define OS_REASON_SETTINGS 17 |
103 | #define OS_REASON_LIBSYSTEM 18 |
104 | #define OS_REASON_FOUNDATION 19 |
105 | #define OS_REASON_WATCHDOG 20 |
106 | #define OS_REASON_METAL 21 |
107 | #define OS_REASON_WATCHKIT 22 |
108 | #define OS_REASON_GUARD 23 |
109 | #define OS_REASON_ANALYTICS 24 |
110 | |
111 | /* |
112 | * Update whenever new OS_REASON namespaces are added. |
113 | */ |
114 | #define OS_REASON_MAX_VALID_NAMESPACE OS_REASON_ANALYTICS |
115 | |
116 | #define OS_REASON_BUFFER_MAX_SIZE 5120 |
117 | |
118 | #define OS_REASON_FLAG_NO_CRASH_REPORT 0x1 /* Don't create a crash report */ |
119 | #define OS_REASON_FLAG_GENERATE_CRASH_REPORT 0x2 /* Create a crash report - the default for userspace requests */ |
120 | #define OS_REASON_FLAG_FROM_USERSPACE 0x4 /* Reason created from a userspace syscall */ |
121 | #define OS_REASON_FLAG_FAILED_DATA_COPYIN 0x8 /* We failed to copyin data from userspace */ |
122 | #define OS_REASON_FLAG_PAYLOAD_TRUNCATED 0x10 /* The payload was truncated because it was longer than allowed */ |
123 | #define OS_REASON_FLAG_BAD_PARAMS 0x20 /* Invalid parameters were passed involved with creating this reason */ |
124 | #define OS_REASON_FLAG_CONSISTENT_FAILURE 0x40 /* Whatever caused this reason to be created will happen again */ |
125 | #define OS_REASON_FLAG_ONE_TIME_FAILURE 0x80 /* Whatever caused this reason to be created was a one time issue */ |
126 | #define OS_REASON_FLAG_NO_CRASHED_TID 0x100 /* Don't include the TID that processed the exit in the crash report */ |
127 | #define OS_REASON_FLAG_ABORT 0x200 /* Reason created from abort_* rather than terminate_* */ |
128 | |
129 | /* |
130 | * Set of flags that are allowed to be passed from userspace |
131 | */ |
132 | #define OS_REASON_FLAG_MASK_ALLOWED_FROM_USER (OS_REASON_FLAG_CONSISTENT_FAILURE | OS_REASON_FLAG_ONE_TIME_FAILURE | OS_REASON_FLAG_NO_CRASH_REPORT | OS_REASON_FLAG_ABORT) |
133 | |
134 | /* |
135 | * Macros to encode the exit reason namespace and first 32 bits of code in exception code |
136 | * which is used by Report Crash as a hint. It should be only used as a hint since it |
137 | * looses higher 32 bits of exit reason code. |
138 | */ |
139 | #define ENCODE_OSR_NAMESPACE_TO_MACH_EXCEPTION_CODE(code, osr_namespace) \ |
140 | (code) = (code) | (((osr_namespace) & ((uint64_t)UINT32_MAX)) << 32) |
141 | #define ENCODE_OSR_CODE_TO_MACH_EXCEPTION_CODE(code, osr_code) \ |
142 | (code) = (code) | ((osr_code) & ((uint64_t)UINT32_MAX)) |
143 | |
144 | #ifndef KERNEL |
145 | /* |
146 | * abort_with_reason: Used to exit the current process and pass along |
147 | * specific information about why it is being terminated. |
148 | * |
149 | * Inputs: args->reason_namespace - OS_REASON namespace specified for the reason |
150 | * args->reason_code - code in the specified namespace for the reason |
151 | * args->reason_string - additional string formatted information about the request |
152 | * args->reason_flags - options requested for how the process should be terminated (see OS_REASON_FLAG_* above). |
153 | * |
154 | * Outputs: Does not return. |
155 | */ |
156 | void abort_with_reason(uint32_t reason_namespace, uint64_t reason_code, const char *reason_string, uint64_t reason_flags) __attribute__((noreturn)); |
157 | |
158 | /* |
159 | * abort_with_payload: Used to exit the current process and pass along |
160 | * specific information about why it is being terminated. The payload pointer |
161 | * should point to structured data that can be interpreted by the consumer of |
162 | * exit reason information. |
163 | * |
164 | * Inputs: args->reason_namespace - OS_REASON namespace specified for the reason |
165 | * args->reason_code - code in the specified namespace for the reason |
166 | * args->payload - pointer to payload structure in user space |
167 | * args->payload_size - length of payload buffer (this will be truncated to EXIT_REASON_PAYLOAD_MAX_LEN) |
168 | * args->reason_string - additional string formatted information about the request |
169 | * args->reason_flags - options requested for how the process should be terminated (see OS_REASON_FLAG_* above). |
170 | * |
171 | * Outputs: Does not return. |
172 | */ |
173 | void abort_with_payload(uint32_t reason_namespace, uint64_t reason_code, void *payload, uint32_t payload_size, const char *reason_string, |
174 | uint64_t reason_flags) __attribute__((noreturn)); |
175 | |
176 | /* |
177 | * terminate_with_reason: Used to terminate a specific process and pass along |
178 | * specific information about why it is being terminated. |
179 | * |
180 | * Inputs: args->pid - the PID of the process to be terminated |
181 | * args->reason_namespace - OS_REASON namespace specified for the reason |
182 | * args->reason_code - code in the specified namespace for the reason |
183 | * args->reason_string - additional string formatted information about the request |
184 | * args->reason_flags - options requested for how the process should be terminated (see OS_REASON_FLAG_* above) |
185 | * |
186 | * Outputs: EINVAL if the PID requested is the same as that of the calling process, invalid or the namespace provided is invalid. |
187 | * ESRCH if we couldn't find a live process with the requested PID |
188 | * EPERM if the caller is not privileged enough to kill the process with the requested PID |
189 | * returns 0 otherwise |
190 | */ |
191 | int terminate_with_reason(int pid, uint32_t reason_namespace, uint64_t reason_code, const char *reason_string, uint64_t reason_flags); |
192 | |
193 | /* |
194 | * terminate_with_payload: Used to terminate a specific process and pass along |
195 | * specific information about why it is being terminated. The payload pointer |
196 | * should point to structured data that can be interpreted by the consumer of |
197 | * exit reason information. |
198 | * |
199 | * Inputs: args->pid - the PID of the process to be terminated. |
200 | * args->reason_namespace - OS_REASON namespace specified for the reason |
201 | * args->reason_code - code in the specified namespace for the reason |
202 | * args->payload - pointer to payload structure in user space |
203 | * args->payload_size - length of payload buffer (this will be truncated to EXIT_REASON_PAYLOAD_MAX_LEN) |
204 | * args->reason_string - additional string formatted information about the request |
205 | * args->reason_flags - options requested for how the process should be terminated (see OS_REASON_FLAG_* above) |
206 | * |
207 | * Outputs: EINVAL if the PID requested is the same as that of the calling process, is invalid or the namespace provided is invalid. |
208 | * ESRCH if we couldn't find a live process with the requested PID |
209 | * EPERM if the caller is not privileged enough to kill the process with the requested PID |
210 | * returns 0 otherwise |
211 | */ |
212 | int terminate_with_payload(int pid, uint32_t reason_namespace, uint64_t reason_code, void *payload, uint32_t payload_size, |
213 | const char *reason_string, uint64_t reason_flags); |
214 | #endif /* KERNEL */ |
215 | |
216 | /* |
217 | * codesigning exit reasons |
218 | */ |
219 | #define CODESIGNING_EXIT_REASON_TASKGATED_INVALID_SIG 1 |
220 | #define CODESIGNING_EXIT_REASON_INVALID_PAGE 2 |
221 | #define CODESIGNING_EXIT_REASON_TASK_ACCESS_PORT 3 |
222 | |
223 | /* |
224 | * exec path specific exit reasons |
225 | */ |
226 | #define EXEC_EXIT_REASON_BAD_MACHO 1 |
227 | #define EXEC_EXIT_REASON_SUGID_FAILURE 2 |
228 | #define EXEC_EXIT_REASON_ACTV_THREADSTATE 3 |
229 | #define EXEC_EXIT_REASON_STACK_ALLOC 4 |
230 | #define EXEC_EXIT_REASON_APPLE_STRING_INIT 5 |
231 | #define EXEC_EXIT_REASON_COPYOUT_STRINGS 6 |
232 | #define EXEC_EXIT_REASON_COPYOUT_DYNLINKER 7 |
233 | #define EXEC_EXIT_REASON_SECURITY_POLICY 8 |
234 | #define EXEC_EXIT_REASON_TASKGATED_OTHER 9 |
235 | #define EXEC_EXIT_REASON_FAIRPLAY_DECRYPT 10 |
236 | #define EXEC_EXIT_REASON_DECRYPT 11 |
237 | #define EXEC_EXIT_REASON_UPX 12 |
238 | #define EXEC_EXIT_REASON_NO32EXEC 13 |
239 | |
240 | /* |
241 | * guard reasons |
242 | */ |
243 | #define GUARD_REASON_VNODE 1 |
244 | #define GUARD_REASON_VIRT_MEMORY 2 |
245 | #define GUARD_REASON_MACH_PORT 3 |
246 | |
247 | __END_DECLS |
248 | |
249 | #endif /* _REASON_H_ */ |
250 | |