criu/include/ptrace.h
Andrey Vagin b9b0730cb1 ptrace: split task_seize into seize_catch_task and seize_wait_task
It's preparation to use a freezer cgroup for freezing tasks.

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2015-08-07 13:47:11 +03:00

78 lines
2 KiB
C

#ifndef __CR_PTRACE_H__
#define __CR_PTRACE_H__
#include <linux/types.h>
#include <sys/ptrace.h>
#include "config.h"
#include "proc_parse.h"
/* some constants for ptrace */
#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_LISTEN
#define PTRACE_LISTEN 0x4208
#endif
#ifndef PTRACE_PEEKSIGINFO
#define PTRACE_PEEKSIGINFO 0x4209
/* Read signals from a shared (process wide) queue */
#define PTRACE_PEEKSIGINFO_SHARED (1 << 0)
#endif
#ifndef CONFIG_HAS_PEEKSIGINFO_ARGS
struct ptrace_peeksiginfo_args {
__u64 off; /* from which siginfo to start */
__u32 flags;
__u32 nr; /* how may siginfos to take */
};
#endif
#ifndef PTRACE_GETREGSET
# define PTRACE_GETREGSET 0x4204
# define PTRACE_SETREGSET 0x4205
#endif
#define PTRACE_GETSIGMASK 0x420a
#define PTRACE_SETSIGMASK 0x420b
#define PTRACE_SEIZE_DEVEL 0x80000000
#define PTRACE_EVENT_FORK 1
#define PTRACE_EVENT_VFORK 2
#define PTRACE_EVENT_CLONE 3
#define PTRACE_EVENT_EXEC 4
#define PTRACE_EVENT_VFORK_DONE 5
#define PTRACE_EVENT_EXIT 6
#define PTRACE_EVENT_STOP 128
#define PTRACE_O_TRACESYSGOOD 0x00000001
#define PTRACE_O_TRACEFORK 0x00000002
#define PTRACE_O_TRACEVFORK 0x00000004
#define PTRACE_O_TRACECLONE 0x00000008
#define PTRACE_O_TRACEEXEC 0x00000010
#define PTRACE_O_TRACEVFORKDONE 0x00000020
#define PTRACE_O_TRACEEXIT 0x00000040
#define SI_EVENT(_si_code) (((_si_code) & 0xFFFF) >> 8)
extern int seize_catch_task(pid_t pid);
extern int seize_wait_task(pid_t pid, pid_t ppid, struct proc_status_creds **creds);
extern int suspend_seccomp(pid_t pid);
extern int unseize_task(pid_t pid, int orig_state, int state);
extern int ptrace_peek_area(pid_t pid, void *dst, void *addr, long bytes);
extern int ptrace_poke_area(pid_t pid, void *src, void *addr, long bytes);
extern int ptrace_swap_area(pid_t pid, void *dst, void *src, long bytes);
#endif /* __CR_PTRACE_H__ */