include/uapi/linux/ptrace.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _UAPI_LINUX_PTRACE_H
   3 #define _UAPI_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 /* _UAPI_LINUX_PTRACE_H */