#ifndef _LINUX_BINFMTS_H#define _LINUX_BINFMTS_H #include <linux/sched.h>#include <linux/unistd.h>#include <asm/exec.h>#include <uapi/linux/binfmts.h> #define CORENAME_MAX_SIZE 128 /* * This structure is used to hold the arguments that are used when loading binaries. */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; /* current top of mem */	unsigned int		cred_prepared:1,/* true if creds already prepared (multiple				 * preps happen for interpreters) */		cap_effective:1;/* true if has elevated effective capabilities,				 * false if not; except for init which inherits				 * its parent's caps anyway */#ifdef __alpha__	unsigned int taso:1;#endif	unsigned int recursion_depth; /* only for search_binary_handler() */	struct file * file;	struct cred *cred;	/* new credentials */	int unsafe;		/* how unsafe this exec is (mask of LSM_UNSAFE_*) */	unsigned int per_clear;	/* bits to clear in current->personality */	int argc, envc;	const char * filename;	/* Name of binary as seen by procps */	const char * interp;	/* Name of the binary really executed. Most				   of the time same as filename, but could be				   different for binfmt_{misc,script} */	unsigned interp_flags;	unsigned interp_data;	unsigned long loader, exec;}; #define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0#define BINPRM_FLAGS_ENFORCE_NONDUMP (1 << BINPRM_FLAGS_ENFORCE_NONDUMP_BIT) /* fd of the binary should be passed to the interpreter */#define BINPRM_FLAGS_EXECFD_BIT 1#define BINPRM_FLAGS_EXECFD (1 << BINPRM_FLAGS_EXECFD_BIT) /* Function parameter for binfmt->coredump */struct coredump_params {	const siginfo_t *siginfo;	struct pt_regs *regs;	struct file *file;	unsigned long limit;	unsigned long mm_flags;	loff_t written;}; /* * This structure defines the functions that are used to load the binary formats that * linux accepts. */struct linux_binfmt {	struct list_head lh;	struct module *module;	int (*load_binary)(struct linux_binprm *);	int (*load_shlib)(struct file *);	int (*core_dump)(struct coredump_params *cprm);	unsigned long min_coredump;	/* minimal dump size */}; extern void __register_binfmt(struct linux_binfmt *fmt, int insert); /* Registration of default binfmt handlers */static inline void register_binfmt(struct linux_binfmt *fmt){	__register_binfmt(fmt, 0);}/* Same as above, but adds a new binfmt at the top of the list */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 *);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; /* Stack area protections */#define EXSTACK_DEFAULT   0	/* Whatever the arch defaults to */#define EXSTACK_DISABLE_X 1	/* Disable executable stacks */#define EXSTACK_ENABLE_X  2	/* Enable executable stacks */ extern int setup_arg_pages(struct linux_binprm * bprm,			   unsigned long stack_top,			   int executable_stack);extern int bprm_change_interp(char *interp, 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 set_binfmt(struct linux_binfmt *new);extern ssize_t read_code(struct file *, unsigned long, loff_t, size_t); #endif /* _LINUX_BINFMTS_H */