Viewing file:  binfmts.h (2.16 KB) -rw-r--r--
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#ifndef _LINUX_BINFMTS_H
#define _LINUX_BINFMTS_H
#include <linux/config.h>
#include <linux/ptrace.h>
#include <linux/capability.h>
/*
* MAX_ARG_PAGES defines the number of pages allocated for arguments
* and envelope for the new program. 32 should suffice, this gives
* a maximum env+arg of 128kB w/4KB pages!
*/
#define MAX_ARG_PAGES 32
/* sizeof(linux_binprm->buf) */
#define BINPRM_BUF_SIZE 128
#ifdef __KERNEL__
/*
* This structure is used to hold the arguments that are used when loading binaries.
*/
struct linux_binprm{
char buf[BINPRM_BUF_SIZE];
struct page *page[MAX_ARG_PAGES];
unsigned long p; /* current top of mem */
int sh_bang;
struct file * file;
int e_uid, e_gid;
kernel_cap_t cap_inheritable, cap_permitted, cap_effective;
int argc, envc;
char * filename; /* Name of binary */
unsigned long loader, exec;
#ifdef CONFIG_HARDEN_FD_0_1_2
int tweak_fd_mask;
struct file *tweak_fd_null;
#endif
};
/*
* This structure defines the functions that are used to load the binary formats that
* linux accepts.
*/
struct linux_binfmt {
struct linux_binfmt * next;
struct module *module;
int (*load_binary)(struct linux_binprm *, struct pt_regs * regs);
int (*load_shlib)(struct file *);
int (*core_dump)(long signr, struct pt_regs * regs, struct file * file);
unsigned long min_coredump; /* minimal dump size */
};
extern int register_binfmt(struct linux_binfmt *);
extern int unregister_binfmt(struct linux_binfmt *);
extern int prepare_binprm(struct linux_binprm *);
extern void 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 int setup_arg_pages(struct linux_binprm * bprm);
extern int copy_strings(int argc,char ** argv,struct linux_binprm *bprm);
extern int copy_strings_kernel(int argc,char ** argv,struct linux_binprm *bprm);
extern void compute_creds(struct linux_binprm *binprm);
extern int do_coredump(long signr, struct pt_regs * regs);
extern void set_binfmt(struct linux_binfmt *new);
#if 0
/* this went away now */
#define change_ldt(a,b) setup_arg_pages(a,b)
#endif
#endif /* __KERNEL__ */
#endif /* _LINUX_BINFMTS_H */
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