#ifndef _LINUX_BINFMTS_H
#define _LINUX_BINFMTS_H

#include <linux/capability.h>

struct pt_regs;

#define MAX_ARG_STRLEN (PAGE_SIZE * 32)
#define MAX_ARG_STRINGS 0x7FFFFFFF

#define BINPRM_BUF_SIZE 128

#ifdef __KERNEL__
#include <linux/sched.h>

#define CORENAME_MAX_SIZE 128

struct linux_binprm {
	char buf[BINPRM_BUF_SIZE];
#ifdef CONFIG_MMU
	struct vm_area_struct *vma;
	unsigned long vma_pages;
#else
# define MAX_ARG_PAGES	32
	struct page *page[MAX_ARG_PAGES];
#endif
	struct mm_struct *mm;
	unsigned long p; 
	unsigned int
		cred_prepared:1,
		cap_effective:1;
#ifdef __alpha__
	unsigned int taso:1;
#endif
	unsigned int recursion_depth;
	struct file * file;
	struct cred *cred;	
	int unsafe;		
	unsigned int per_clear;	
	int argc, envc;
	const char * filename;	
	const char * interp;	
	unsigned interp_flags;
	unsigned interp_data;
	unsigned long loader, exec;
	char tcomm[TASK_COMM_LEN];
};

#define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
#define BINPRM_FLAGS_ENFORCE_NONDUMP (1 << BINPRM_FLAGS_ENFORCE_NONDUMP_BIT)

#define BINPRM_FLAGS_EXECFD_BIT 1
#define BINPRM_FLAGS_EXECFD (1 << BINPRM_FLAGS_EXECFD_BIT)

#define BINPRM_MAX_RECURSION 4

struct coredump_params {
	long signr;
	struct pt_regs *regs;
	struct file *file;
	unsigned long limit;
	unsigned long mm_flags;
};

struct linux_binfmt {
	struct list_head lh;
	struct module *module;
	int (*load_binary)(struct linux_binprm *, struct  pt_regs * regs);
	int (*load_shlib)(struct file *);
	int (*core_dump)(struct coredump_params *cprm);
	unsigned long min_coredump;	
};

extern void __register_binfmt(struct linux_binfmt *fmt, int insert);

static inline void register_binfmt(struct linux_binfmt *fmt)
{
	__register_binfmt(fmt, 0);
}
static inline void insert_binfmt(struct linux_binfmt *fmt)
{
	__register_binfmt(fmt, 1);
}

extern void unregister_binfmt(struct linux_binfmt *);

extern int prepare_binprm(struct linux_binprm *);
extern int __must_check remove_arg_zero(struct linux_binprm *);
extern int search_binary_handler(struct linux_binprm *, struct pt_regs *);
extern int flush_old_exec(struct linux_binprm * bprm);
extern void setup_new_exec(struct linux_binprm * bprm);
extern void would_dump(struct linux_binprm *, struct file *);

extern int suid_dumpable;
#define SUID_DUMP_DISABLE	0	
#define SUID_DUMP_USER		1	
#define SUID_DUMP_ROOT		2	

#define EXSTACK_DEFAULT   0	
#define EXSTACK_DISABLE_X 1	
#define EXSTACK_ENABLE_X  2	

extern int setup_arg_pages(struct linux_binprm * bprm,
			   unsigned long stack_top,
			   int executable_stack);
extern int bprm_mm_init(struct linux_binprm *bprm);
extern int copy_strings_kernel(int argc, const char *const *argv,
			       struct linux_binprm *bprm);
extern int prepare_bprm_creds(struct linux_binprm *bprm);
extern void install_exec_creds(struct linux_binprm *bprm);
extern void do_coredump(long signr, int exit_code, struct pt_regs *regs);
extern void set_binfmt(struct linux_binfmt *new);
extern void free_bprm(struct linux_binprm *);

#endif 
#endif