1 #ifndef _LINUX_BINFMTS_H
2 #define _LINUX_BINFMTS_H
3
4 #include <linux/ptrace.h>
5 #include <linux/capability.h>
6
7 /*
8 * MAX_ARG_PAGES defines the number of pages allocated for arguments
9 * and envelope for the new program. 32 should suffice, this gives
10 * a maximum env+arg of 128kB w/4KB pages!
11 */
12 #define MAX_ARG_PAGES 32
13
14 /* sizeof(linux_binprm->buf) */
15 #define BINPRM_BUF_SIZE 128
16
17 #ifdef __KERNEL__
18
19 /*
20 * This structure is used to hold the arguments that are used when loading binaries.
21 */
22 struct linux_binprm{
23 char buf[BINPRM_BUF_SIZE];
24 struct page *page[MAX_ARG_PAGES];
25 unsigned long p; /* current top of mem */
26 int sh_bang;
27 struct file * file;
28 int e_uid, e_gid;
29 kernel_cap_t cap_inheritable, cap_permitted, cap_effective;
30 int argc, envc;
31 char * filename; /* Name of binary */
32 unsigned long loader, exec;
33 };
34
35 /*
36 * This structure defines the functions that are used to load the binary formats that
37 * linux accepts.
38 */
39 struct linux_binfmt {
40 struct linux_binfmt * next;
41 struct module *module;
42 int (*load_binary)(struct linux_binprm *, struct pt_regs * regs);
43 int (*load_shlib)(struct file *);
44 int (*core_dump)(long signr, struct pt_regs * regs, struct file * file);
45 unsigned long min_coredump; /* minimal dump size */
46 };
47
48 extern int register_binfmt(struct linux_binfmt *);
49 extern int unregister_binfmt(struct linux_binfmt *);
50
51 extern int prepare_binprm(struct linux_binprm *);
52 extern void remove_arg_zero(struct linux_binprm *);
53 extern int search_binary_handler(struct linux_binprm *,struct pt_regs *);
54 extern int flush_old_exec(struct linux_binprm * bprm);
55 extern int setup_arg_pages(struct linux_binprm * bprm);
56 extern int copy_strings(int argc,char ** argv,struct linux_binprm *bprm);
57 extern int copy_strings_kernel(int argc,char ** argv,struct linux_binprm *bprm);
58 extern void compute_creds(struct linux_binprm *binprm);
59 extern int do_coredump(long signr, struct pt_regs * regs);
60 extern void set_binfmt(struct linux_binfmt *new);
61
62
63 #if 0
64 /* this went away now */
65 #define change_ldt(a,b) setup_arg_pages(a,b)
66 #endif
67
68 #endif /* __KERNEL__ */
69 #endif /* _LINUX_BINFMTS_H */
70
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