mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-01-23 02:14:37 +00:00
1c0716924b
All those compel functions can fail by various reasons. It may be status of the system, interruption by user or anything else. It's really desired to handle as many PIE related errors as possible otherwise it's hard to analyze statuses of parasite/restorer and the C/R process. At least warning for logs should be produced or even C/R stopped. Signed-off-by: Dmitry Safonov <dima@arista.com> Signed-off-by: Andrei Vagin <avagin@gmail.com>
83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
#ifndef UAPI_COMPEL_PTRACE_H__
|
|
#define UAPI_COMPEL_PTRACE_H__
|
|
|
|
#include "common/compiler.h"
|
|
/*
|
|
* We'd want to include both sys/ptrace.h and linux/ptrace.h,
|
|
* hoping that most definitions come from either one or another.
|
|
* Alas, on Alpine/musl both files declare struct ptrace_peeksiginfo_args,
|
|
* so there is no way they can be used together. Let's rely on libc one.
|
|
*/
|
|
#include <sys/ptrace.h>
|
|
#include <stdint.h>
|
|
|
|
#include <compel/asm/breakpoints.h>
|
|
|
|
/*
|
|
* Some constants for ptrace that might be missing from the
|
|
* standard library includes due to being (relatively) new.
|
|
*/
|
|
|
|
#ifndef PTRACE_SEIZE
|
|
# define PTRACE_SEIZE 0x4206
|
|
#endif
|
|
|
|
#ifndef PTRACE_O_SUSPEND_SECCOMP
|
|
# define PTRACE_O_SUSPEND_SECCOMP (1 << 21)
|
|
#endif
|
|
|
|
#ifndef PTRACE_INTERRUPT
|
|
# define PTRACE_INTERRUPT 0x4207
|
|
#endif
|
|
|
|
#ifndef PTRACE_PEEKSIGINFO
|
|
#define PTRACE_PEEKSIGINFO 0x4209
|
|
|
|
/* Read signals from a shared (process wide) queue */
|
|
#define PTRACE_PEEKSIGINFO_SHARED (1 << 0)
|
|
#endif
|
|
|
|
#ifndef PTRACE_GETREGSET
|
|
# define PTRACE_GETREGSET 0x4204
|
|
# define PTRACE_SETREGSET 0x4205
|
|
#endif
|
|
|
|
#ifndef PTRACE_GETSIGMASK
|
|
# define PTRACE_GETSIGMASK 0x420a
|
|
# define PTRACE_SETSIGMASK 0x420b
|
|
#endif
|
|
|
|
#ifndef PTRACE_SECCOMP_GET_FILTER
|
|
#define PTRACE_SECCOMP_GET_FILTER 0x420c
|
|
#endif
|
|
|
|
#ifndef PTRACE_SECCOMP_GET_METADATA
|
|
# define PTRACE_SECCOMP_GET_METADATA 0x420d
|
|
#endif /* PTRACE_SECCOMP_GET_METADATA */
|
|
|
|
/*
|
|
* struct seccomp_metadata is not yet
|
|
* settled down well in headers so use
|
|
* own identical definition for a while.
|
|
*/
|
|
typedef struct {
|
|
uint64_t filter_off; /* Input: which filter */
|
|
uint64_t flags; /* Output: filter's flags */
|
|
} seccomp_metadata_t;
|
|
|
|
#ifdef PTRACE_EVENT_STOP
|
|
# if PTRACE_EVENT_STOP == 7 /* Bad value from Linux 3.1-3.3, fixed in 3.4 */
|
|
# undef PTRACE_EVENT_STOP
|
|
# endif
|
|
#endif
|
|
#ifndef PTRACE_EVENT_STOP
|
|
# define PTRACE_EVENT_STOP 128
|
|
#endif
|
|
|
|
extern int ptrace_suspend_seccomp(pid_t pid);
|
|
|
|
extern int __must_check ptrace_peek_area(pid_t pid, void *dst, void *addr, long bytes);
|
|
extern int __must_check ptrace_poke_area(pid_t pid, void *src, void *addr, long bytes);
|
|
extern int __must_check ptrace_swap_area(pid_t pid, void *dst, void *src, long bytes);
|
|
|
|
#endif /* UAPI_COMPEL_PTRACE_H__ */
|