include/linux/binfmts.h

13770 #ifndef _LINUX_BINFMTS_H
13771 #define _LINUX_BINFMTS_H
13772 
13773 #include <linux/ptrace.h>
13774 #include <linux/capability.h>
13775 
13776 /* MAX_ARG_PAGES defines the number of pages allocated
13777  * for arguments and envelope for the new program. 32
13778  * should suffice, this gives a maximum env+arg of 128kB
13779  * w/4KB pages!  */
13780 #define MAX_ARG_PAGES 32
13781 
13782 #ifdef __KERNEL__
13783 
13784 /* This structure is used to hold the arguments that are
13785  * used when loading binaries.  */
13786 struct linux_binprm{
13787   char buf[128];
13788   unsigned long page[MAX_ARG_PAGES];
13789   unsigned long p;
13790   int sh_bang;
13791   int java; /* Java bin, prevent recursive invocation */
13792   struct dentry * dentry;
13793   int e_uid, e_gid;
13794   kernel_cap_t cap_inheritable, cap_permitted,
13795     cap_effective;
13796   int argc, envc;
13797   char * filename;        /* Name of binary */
13798   unsigned long loader, exec;
13799 };
13800 
13801 /* This structure defines the functions that are used to
13802  * load the binary formats that linux accepts.  */
13803 struct linux_binfmt {
13804   struct linux_binfmt * next;
13805   struct module *module;
13806   int (*load_binary)(struct linux_binprm *,
13807                      struct pt_regs * regs);
13808   int (*load_shlib)(int fd);
13809   int (*core_dump)(long signr, struct pt_regs * regs);
13810 };
13811 
13812 extern int register_binfmt(struct linux_binfmt *);
13813 extern int unregister_binfmt(struct linux_binfmt *);
13814 
13815 extern int read_exec(struct dentry *,
13816   unsigned long offset, char * addr, unsigned long count,
13817   int to_kmem);
13818 
13819 extern int open_dentry(struct dentry *, int mode);
13820 
13821 extern int init_elf_binfmt(void);
13822 extern int init_elf32_binfmt(void);
13823 extern int init_aout_binfmt(void);
13824 extern int init_aout32_binfmt(void);
13825 extern int init_script_binfmt(void);
13826 extern int init_java_binfmt(void);
13827 extern int init_em86_binfmt(void);
13828 extern int init_misc_binfmt(void);
13829 
13830 extern int prepare_binprm(struct linux_binprm *);
13831 extern void remove_arg_zero(struct linux_binprm *);
13832 extern int search_binary_handler(struct linux_binprm *,
13833                                  struct pt_regs *);
13834 extern int flush_old_exec(struct linux_binprm * bprm);
13835 extern unsigned long setup_arg_pages(unsigned long p,
13836   struct linux_binprm * bprm);
13837 extern unsigned long copy_strings(int argc,char ** argv,
13838   unsigned long *page, unsigned long p, int from_kmem);
13839 
13840 extern void compute_creds(struct linux_binprm *binprm);
13841 
13842 /* this eventually goes away */
13843 #define change_ldt(a,b) setup_arg_pages(a,b)
13844 
13845 #endif /* __KERNEL__ */
13846 #endif /* _LINUX_BINFMTS_H */