linux-headers (unknown)
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
59 struct 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
71 struct 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_SYSCALL_INFO_NONE 0
78 #define PTRACE_SYSCALL_INFO_ENTRY 1
79 #define PTRACE_SYSCALL_INFO_EXIT 2
80 #define PTRACE_SYSCALL_INFO_SECCOMP 3
81
82 struct ptrace_syscall_info {
83 __u8 op; /* PTRACE_SYSCALL_INFO_* */
84 __u8 pad[3];
85 __u32 arch;
86 __u64 instruction_pointer;
87 __u64 stack_pointer;
88 union {
89 struct {
90 __u64 nr;
91 __u64 args[6];
92 } entry;
93 struct {
94 __s64 rval;
95 __u8 is_error;
96 } exit;
97 struct {
98 __u64 nr;
99 __u64 args[6];
100 __u32 ret_data;
101 } seccomp;
102 };
103 };
104
105 #define PTRACE_GET_RSEQ_CONFIGURATION 0x420f
106
107 struct ptrace_rseq_configuration {
108 __u64 rseq_abi_pointer;
109 __u32 rseq_abi_size;
110 __u32 signature;
111 __u32 flags;
112 __u32 pad;
113 };
114
115 #define PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG 0x4210
116 #define PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG 0x4211
117
118 /*
119 * struct ptrace_sud_config - Per-task configuration for Syscall User Dispatch
120 * @mode: One of PR_SYS_DISPATCH_ON or PR_SYS_DISPATCH_OFF
121 * @selector: Tracees user virtual address of SUD selector
122 * @offset: SUD exclusion area (virtual address)
123 * @len: Length of SUD exclusion area
124 *
125 * Used to get/set the syscall user dispatch configuration for a tracee.
126 * Selector is optional (may be NULL), and if invalid will produce
127 * a SIGSEGV in the tracee upon first access.
128 *
129 * If mode is PR_SYS_DISPATCH_ON, syscall dispatch will be enabled. If
130 * PR_SYS_DISPATCH_OFF, syscall dispatch will be disabled and all other
131 * parameters must be 0. The value in *selector (if not null), also determines
132 * whether syscall dispatch will occur.
133 *
134 * The Syscall User Dispatch Exclusion area described by offset/len is the
135 * virtual address space from which syscalls will not produce a user
136 * dispatch.
137 */
138 struct ptrace_sud_config {
139 __u64 mode;
140 __u64 selector;
141 __u64 offset;
142 __u64 len;
143 };
144
145 /*
146 * These values are stored in task->ptrace_message
147 * by ptrace_stop to describe the current syscall-stop.
148 */
149 #define PTRACE_EVENTMSG_SYSCALL_ENTRY 1
150 #define PTRACE_EVENTMSG_SYSCALL_EXIT 2
151
152 /* Read signals from a shared (process wide) queue */
153 #define PTRACE_PEEKSIGINFO_SHARED (1 << 0)
154
155 /* Wait extended result codes for the above trace options. */
156 #define PTRACE_EVENT_FORK 1
157 #define PTRACE_EVENT_VFORK 2
158 #define PTRACE_EVENT_CLONE 3
159 #define PTRACE_EVENT_EXEC 4
160 #define PTRACE_EVENT_VFORK_DONE 5
161 #define PTRACE_EVENT_EXIT 6
162 #define PTRACE_EVENT_SECCOMP 7
163 /* Extended result codes which enabled by means other than options. */
164 #define PTRACE_EVENT_STOP 128
165
166 /* Options set using PTRACE_SETOPTIONS or using PTRACE_SEIZE @data param */
167 #define PTRACE_O_TRACESYSGOOD 1
168 #define PTRACE_O_TRACEFORK (1 << PTRACE_EVENT_FORK)
169 #define PTRACE_O_TRACEVFORK (1 << PTRACE_EVENT_VFORK)
170 #define PTRACE_O_TRACECLONE (1 << PTRACE_EVENT_CLONE)
171 #define PTRACE_O_TRACEEXEC (1 << PTRACE_EVENT_EXEC)
172 #define PTRACE_O_TRACEVFORKDONE (1 << PTRACE_EVENT_VFORK_DONE)
173 #define PTRACE_O_TRACEEXIT (1 << PTRACE_EVENT_EXIT)
174 #define PTRACE_O_TRACESECCOMP (1 << PTRACE_EVENT_SECCOMP)
175
176 /* eventless options */
177 #define PTRACE_O_EXITKILL (1 << 20)
178 #define PTRACE_O_SUSPEND_SECCOMP (1 << 21)
179
180 #define PTRACE_O_MASK (\
181 0x000000ff | PTRACE_O_EXITKILL | PTRACE_O_SUSPEND_SECCOMP)
182
183 #include <asm/ptrace.h>
184
185
186 #endif /* _LINUX_PTRACE_H */
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