1#ifndef _LINUX_BINFMTS_H
2#define _LINUX_BINFMTS_H
3
4#include <linux/sched.h>
5#include <linux/unistd.h>
6#include <asm/exec.h>
7#include <uapi/linux/binfmts.h>
8
9#define CORENAME_MAX_SIZE 128
10
11
12
13
14struct linux_binprm {
15 char buf[BINPRM_BUF_SIZE];
16#ifdef CONFIG_MMU
17 struct vm_area_struct *vma;
18 unsigned long vma_pages;
19#else
20# define MAX_ARG_PAGES 32
21 struct page *page[MAX_ARG_PAGES];
22#endif
23 struct mm_struct *mm;
24 unsigned long p;
25 unsigned int
26 cred_prepared:1,
27
28 cap_effective:1;
29
30
31#ifdef __alpha__
32 unsigned int taso:1;
33#endif
34 unsigned int recursion_depth;
35 struct file * file;
36 struct cred *cred;
37 int unsafe;
38 unsigned int per_clear;
39 int argc, envc;
40 const char * filename;
41 const char * interp;
42
43
44 unsigned interp_flags;
45 unsigned interp_data;
46 unsigned long loader, exec;
47};
48
49#define BINPRM_FLAGS_ENFORCE_NONDUMP_BIT 0
50#define BINPRM_FLAGS_ENFORCE_NONDUMP (1 << BINPRM_FLAGS_ENFORCE_NONDUMP_BIT)
51
52
53#define BINPRM_FLAGS_EXECFD_BIT 1
54#define BINPRM_FLAGS_EXECFD (1 << BINPRM_FLAGS_EXECFD_BIT)
55
56
57#define BINPRM_FLAGS_PATH_INACCESSIBLE_BIT 2
58#define BINPRM_FLAGS_PATH_INACCESSIBLE (1 << BINPRM_FLAGS_PATH_INACCESSIBLE_BIT)
59
60
61struct coredump_params {
62 const siginfo_t *siginfo;
63 struct pt_regs *regs;
64 struct file *file;
65 unsigned long limit;
66 unsigned long mm_flags;
67 loff_t written;
68};
69
70
71
72
73
74struct linux_binfmt {
75 struct list_head lh;
76 struct module *module;
77 int (*load_binary)(struct linux_binprm *);
78 int (*load_shlib)(struct file *);
79 int (*core_dump)(struct coredump_params *cprm);
80 unsigned long min_coredump;
81};
82
83extern void __register_binfmt(struct linux_binfmt *fmt, int insert);
84
85
86static inline void register_binfmt(struct linux_binfmt *fmt)
87{
88 __register_binfmt(fmt, 0);
89}
90
91static inline void insert_binfmt(struct linux_binfmt *fmt)
92{
93 __register_binfmt(fmt, 1);
94}
95
96extern void unregister_binfmt(struct linux_binfmt *);
97
98extern int prepare_binprm(struct linux_binprm *);
99extern int __must_check remove_arg_zero(struct linux_binprm *);
100extern int search_binary_handler(struct linux_binprm *);
101extern int flush_old_exec(struct linux_binprm * bprm);
102extern void setup_new_exec(struct linux_binprm * bprm);
103extern void would_dump(struct linux_binprm *, struct file *);
104
105extern int suid_dumpable;
106
107
108#define EXSTACK_DEFAULT 0
109#define EXSTACK_DISABLE_X 1
110#define EXSTACK_ENABLE_X 2
111
112extern int setup_arg_pages(struct linux_binprm * bprm,
113 unsigned long stack_top,
114 int executable_stack);
115extern int bprm_change_interp(char *interp, struct linux_binprm *bprm);
116extern int copy_strings_kernel(int argc, const char *const *argv,
117 struct linux_binprm *bprm);
118extern int prepare_bprm_creds(struct linux_binprm *bprm);
119extern void install_exec_creds(struct linux_binprm *bprm);
120extern void set_binfmt(struct linux_binfmt *new);
121extern ssize_t read_code(struct file *, unsigned long, loff_t, size_t);
122
123#endif
124