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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _LINUX_PTRACE_H
3#define _LINUX_PTRACE_H
4/* ptrace.h */
5/* structs and defines to help the user use the ptrace system call. */
6
7/* has the defines to get at the registers. */
8
9#include <linux/types.h>
10
11#define PTRACE_TRACEME 0
12#define PTRACE_PEEKTEXT 1
13#define PTRACE_PEEKDATA 2
14#define PTRACE_PEEKUSR 3
15#define PTRACE_POKETEXT 4
16#define PTRACE_POKEDATA 5
17#define PTRACE_POKEUSR 6
18#define PTRACE_CONT 7
19#define PTRACE_KILL 8
20#define PTRACE_SINGLESTEP 9
21
22#define PTRACE_ATTACH 16
23#define PTRACE_DETACH 17
24
25#define PTRACE_SYSCALL 24
26
27/* 0x4200-0x4300 are reserved for architecture-independent additions. */
28#define PTRACE_SETOPTIONS 0x4200
29#define PTRACE_GETEVENTMSG 0x4201
30#define PTRACE_GETSIGINFO 0x4202
31#define PTRACE_SETSIGINFO 0x4203
32
33/*
34 * Generic ptrace interface that exports the architecture specific regsets
35 * using the corresponding NT_* types (which are also used in the core dump).
36 * Please note that the NT_PRSTATUS note type in a core dump contains a full
37 * 'struct elf_prstatus'. But the user_regset for NT_PRSTATUS contains just the
38 * elf_gregset_t that is the pr_reg field of 'struct elf_prstatus'. For all the
39 * other user_regset flavors, the user_regset layout and the ELF core dump note
40 * payload are exactly the same layout.
41 *
42 * This interface usage is as follows:
43 * struct iovec iov = { buf, len};
44 *
45 * ret = ptrace(PTRACE_GETREGSET/PTRACE_SETREGSET, pid, NT_XXX_TYPE, &iov);
46 *
47 * On the successful completion, iov.len will be updated by the kernel,
48 * specifying how much the kernel has written/read to/from the user's iov.buf.
49 */
50#define PTRACE_GETREGSET 0x4204
51#define PTRACE_SETREGSET 0x4205
52
53#define PTRACE_SEIZE 0x4206
54#define PTRACE_INTERRUPT 0x4207
55#define PTRACE_LISTEN 0x4208
56
57#define PTRACE_PEEKSIGINFO 0x4209
58
59struct ptrace_peeksiginfo_args {
60 __u64 off; /* from which siginfo to start */
61 __u32 flags;
62 __s32 nr; /* how may siginfos to take */
63};
64
65#define PTRACE_GETSIGMASK 0x420a
66#define PTRACE_SETSIGMASK 0x420b
67
68#define PTRACE_SECCOMP_GET_FILTER 0x420c
69#define PTRACE_SECCOMP_GET_METADATA 0x420d
70
71struct seccomp_metadata {
72 __u64 filter_off; /* Input: which filter */
73 __u64 flags; /* Output: filter's flags */
74};
75
76#define PTRACE_GET_SYSCALL_INFO 0x420e
77#define PTRACE_SET_SYSCALL_INFO 0x4212
78#define PTRACE_SYSCALL_INFO_NONE 0
79#define PTRACE_SYSCALL_INFO_ENTRY 1
80#define PTRACE_SYSCALL_INFO_EXIT 2
81#define PTRACE_SYSCALL_INFO_SECCOMP 3
82
83struct ptrace_syscall_info {
84 __u8 op; /* PTRACE_SYSCALL_INFO_* */
85 __u8 reserved;
86 __u16 flags;
87 __u32 arch;
88 __u64 instruction_pointer;
89 __u64 stack_pointer;
90 union {
91 struct {
92 __u64 nr;
93 __u64 args[6];
94 } entry;
95 struct {
96 __s64 rval;
97 __u8 is_error;
98 } exit;
99 struct {
100 __u64 nr;
101 __u64 args[6];
102 __u32 ret_data;
103 __u32 reserved2;
104 } seccomp;
105 };
106};
107
108#define PTRACE_GET_RSEQ_CONFIGURATION 0x420f
109
110struct ptrace_rseq_configuration {
111 __u64 rseq_abi_pointer;
112 __u32 rseq_abi_size;
113 __u32 signature;
114 __u32 flags;
115 __u32 pad;
116};
117
118#define PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG 0x4210
119#define PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG 0x4211
120
121/*
122 * struct ptrace_sud_config - Per-task configuration for Syscall User Dispatch
123 * @mode: One of PR_SYS_DISPATCH_ON or PR_SYS_DISPATCH_OFF
124 * @selector: Tracees user virtual address of SUD selector
125 * @offset: SUD exclusion area (virtual address)
126 * @len: Length of SUD exclusion area
127 *
128 * Used to get/set the syscall user dispatch configuration for a tracee.
129 * Selector is optional (may be NULL), and if invalid will produce
130 * a SIGSEGV in the tracee upon first access.
131 *
132 * If mode is PR_SYS_DISPATCH_ON, syscall dispatch will be enabled. If
133 * PR_SYS_DISPATCH_OFF, syscall dispatch will be disabled and all other
134 * parameters must be 0. The value in *selector (if not null), also determines
135 * whether syscall dispatch will occur.
136 *
137 * The Syscall User Dispatch Exclusion area described by offset/len is the
138 * virtual address space from which syscalls will not produce a user
139 * dispatch.
140 */
141struct ptrace_sud_config {
142 __u64 mode;
143 __u64 selector;
144 __u64 offset;
145 __u64 len;
146};
147
148/* 0x4212 is PTRACE_SET_SYSCALL_INFO */
149
150/*
151 * These values are stored in task->ptrace_message
152 * by ptrace_stop to describe the current syscall-stop.
153 */
154#define PTRACE_EVENTMSG_SYSCALL_ENTRY 1
155#define PTRACE_EVENTMSG_SYSCALL_EXIT 2
156
157/* Read signals from a shared (process wide) queue */
158#define PTRACE_PEEKSIGINFO_SHARED (1 << 0)
159
160/* Wait extended result codes for the above trace options. */
161#define PTRACE_EVENT_FORK 1
162#define PTRACE_EVENT_VFORK 2
163#define PTRACE_EVENT_CLONE 3
164#define PTRACE_EVENT_EXEC 4
165#define PTRACE_EVENT_VFORK_DONE 5
166#define PTRACE_EVENT_EXIT 6
167#define PTRACE_EVENT_SECCOMP 7
168/* Extended result codes which enabled by means other than options. */
169#define PTRACE_EVENT_STOP 128
170
171/* Options set using PTRACE_SETOPTIONS or using PTRACE_SEIZE @data param */
172#define PTRACE_O_TRACESYSGOOD 1
173#define PTRACE_O_TRACEFORK (1 << PTRACE_EVENT_FORK)
174#define PTRACE_O_TRACEVFORK (1 << PTRACE_EVENT_VFORK)
175#define PTRACE_O_TRACECLONE (1 << PTRACE_EVENT_CLONE)
176#define PTRACE_O_TRACEEXEC (1 << PTRACE_EVENT_EXEC)
177#define PTRACE_O_TRACEVFORKDONE (1 << PTRACE_EVENT_VFORK_DONE)
178#define PTRACE_O_TRACEEXIT (1 << PTRACE_EVENT_EXIT)
179#define PTRACE_O_TRACESECCOMP (1 << PTRACE_EVENT_SECCOMP)
180
181/* eventless options */
182#define PTRACE_O_EXITKILL (1 << 20)
183#define PTRACE_O_SUSPEND_SECCOMP (1 << 21)
184
185#define PTRACE_O_MASK (\
186 0x000000ff | PTRACE_O_EXITKILL | PTRACE_O_SUSPEND_SECCOMP)
187
188#include <asm/ptrace.h>
189
190
191#endif /* _LINUX_PTRACE_H */