1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
#ifndef _LINUX_BINFMTS_H
#define _LINUX_BINFMTS_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
#ifdef __KERNEL__
/*
* This structure is used to hold the arguments that are used when loading binaries.
*/
struct linux_binprm{
char buf[128];
unsigned long page[MAX_ARG_PAGES];
unsigned long p;
int sh_bang;
int java; /* Java binary, prevent recursive invocation */
struct dentry * dentry;
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;
};
/*
* 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)(int fd);
int (*core_dump)(long signr, struct pt_regs * regs);
};
extern int register_binfmt(struct linux_binfmt *);
extern int unregister_binfmt(struct linux_binfmt *);
extern int read_exec(struct dentry *, unsigned long offset,
char * addr, unsigned long count, int to_kmem);
extern int open_dentry(struct dentry *, int mode);
extern int init_elf_binfmt(void);
extern int init_elf32_binfmt(void);
extern int init_irix_binfmt(void);
extern int init_aout_binfmt(void);
extern int init_aout32_binfmt(void);
extern int init_script_binfmt(void);
extern int init_java_binfmt(void);
extern int init_em86_binfmt(void);
extern int init_misc_binfmt(void);
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 unsigned long setup_arg_pages(unsigned long p, struct linux_binprm * bprm);
extern unsigned long copy_strings(int argc,char ** argv,unsigned long *page,
unsigned long p, int from_kmem);
extern void compute_creds(struct linux_binprm *binprm);
/* this eventually goes away */
#define change_ldt(a,b) setup_arg_pages(a,b)
#endif /* __KERNEL__ */
#endif /* _LINUX_BINFMTS_H */
|
