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criu/compel/include/uapi/ptrace.h
Cyrill Gorcunov 7d8a6df24d seccomp: Use own seccomp_metadata_t type
On fedora rawhide seccomp_metadata for some
reason is not defined (while in kernel it introduced
together with PTRACE_SECCOMP_GET_METADATA). So
lets do a trick for a while -- define own alias.
Once system headers get settled down we might find
more suitable solution. Because it's a part of kernel
API we're on the safe side.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
2018-05-26 04:05:29 +03:00

83 lines
2.1 KiB
C

#ifndef UAPI_COMPEL_PTRACE_H__
#define UAPI_COMPEL_PTRACE_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 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 /* UAPI_COMPEL_PTRACE_H__ */