#ifndef __CR_PARASITE_SYSCALL_H__
#define __CR_PARASITE_SYSCALL_H__

#define BUILTIN_SYSCALL_SIZE	8

/* parasite control block */
struct parasite_ctl {
	pid_t			pid;					/* process pid where we live in */
	void			*remote_map;
	void			*local_map;
	unsigned long		map_length;

	unsigned long		parasite_ip;				/* service routine start ip */
	user_regs_struct_t	regs_orig;				/* original registers */
	unsigned long		syscall_ip;				/* entry point of infection */
	u8			code_orig[BUILTIN_SYSCALL_SIZE];

	int			signals_blocked;

	unsigned int		*addr_cmd;				/* addr for command */
	void			*addr_args;				/* address for arguments */
	unsigned long		args_size;
	int			tsock;					/* transport socket for transfering fds */
};

struct cr_fdset;
struct list_head;

extern int parasite_dump_sigacts_seized(struct parasite_ctl *ctl, struct cr_fdset *cr_fdset);
extern int parasite_dump_itimers_seized(struct parasite_ctl *ctl, struct cr_fdset *cr_fdset);

struct parasite_dump_misc;
struct vm_area_list;
extern int parasite_dump_misc_seized(struct parasite_ctl *ctl, struct parasite_dump_misc *misc);
struct _CredsEntry;
extern int parasite_dump_creds(struct parasite_ctl *ctl, struct _CredsEntry *ce);
extern int parasite_dump_pages_seized(struct parasite_ctl *ctl, int vpid,
				      struct vm_area_list *vma_area_list,
				      struct cr_fdset *cr_fdset);
struct parasite_dump_thread;
struct pid;
struct _CoreEntry;
extern int parasite_dump_thread_seized(struct parasite_ctl *ctl, struct pid *tid,
		struct _CoreEntry *core);

struct parasite_drain_fd;
struct fd_opts;
extern int parasite_drain_fds_seized(struct parasite_ctl *ctl,
					struct parasite_drain_fd *dfds,
					int *lfds, struct fd_opts *flags);
extern int parasite_get_proc_fd_seized(struct parasite_ctl *ctl);

struct pstree_item;
extern int parasite_cure_seized(struct parasite_ctl *ctl, struct pstree_item *item);
extern struct parasite_ctl *parasite_infect_seized(pid_t pid,
						   struct pstree_item *item,
						   struct vm_area_list *vma_area_list,
						   struct parasite_drain_fd *dfds);
extern struct parasite_ctl *parasite_prep_ctl(pid_t pid, struct vm_area_list *vma_area_list);
extern int parasite_map_exchange(struct parasite_ctl *ctl, unsigned long size);

extern struct parasite_tty_args *parasite_dump_tty(struct parasite_ctl *ctl, int fd);

struct pstree_item;
extern int parasite_init_threads_seized(struct parasite_ctl *ctl, struct pstree_item *item);
extern int parasite_fini_threads_seized(struct parasite_ctl *ctl, struct pstree_item *item);

int syscall_seized(struct parasite_ctl *ctl, int nr, unsigned long *ret,
		unsigned long arg1,
		unsigned long arg2,
		unsigned long arg3,
		unsigned long arg4,
		unsigned long arg5,
		unsigned long arg6);

extern int __parasite_execute(struct parasite_ctl *ctl, pid_t pid, user_regs_struct_t *regs);
extern int task_in_compat_mode(pid_t pid);

#endif /* __CR_PARASITE_SYSCALL_H__ */