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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/****************************************************************************
****************************************************************************
***
*** This header was automatically generated from a Linux kernel header
*** of the same name, to make information necessary for userspace to
*** call into the kernel available to libc. It contains only constants,
*** structures, and macros generated from the original header, and thus,
*** contains no copyrightable information.
***
****************************************************************************
****************************************************************************/
#ifndef _LINUX_MODULE_PARAMS_H
#define _LINUX_MODULE_PARAMS_H
#include <linux/init.h>
#include <linux/stringify.h>
#include <linux/kernel.h>
#ifdef MODULE
#define MODULE_PARAM_PREFIX
#else
#define MODULE_PARAM_PREFIX KBUILD_MODNAME "."
#endif
#ifdef MODULE
#define ___module_cat(a,b) __mod_ ## a ## b
#define __module_cat(a,b) ___module_cat(a,b)
#define __MODULE_INFO(tag, name, info) static const char __module_cat(name,__LINE__)[] __attribute_used__ __attribute__((section(".modinfo"),unused)) = __stringify(tag) "=" info
#else
#define __MODULE_INFO(tag, name, info)
#endif
#define __MODULE_PARM_TYPE(name, _type) __MODULE_INFO(parmtype, name##type, #name ":" _type)
struct kernel_param;
typedef int (*param_set_fn)(const char *val, struct kernel_param *kp);
typedef int (*param_get_fn)(char *buffer, struct kernel_param *kp);
struct kernel_param {
const char *name;
unsigned int perm;
param_set_fn set;
param_get_fn get;
void *arg;
};
struct kparam_string {
unsigned int maxlen;
char *string;
};
struct kparam_array
{
unsigned int max;
unsigned int *num;
param_set_fn set;
param_get_fn get;
unsigned int elemsize;
void *elem;
};
#define __module_param_call(prefix, name, set, get, arg, perm) static char __param_str_##name[] = prefix #name; static struct kernel_param const __param_##name __attribute_used__ __attribute__ ((unused,__section__ ("__param"),aligned(sizeof(void *)))) = { __param_str_##name, perm, set, get, arg }
#define module_param_call(name, set, get, arg, perm) __module_param_call(MODULE_PARAM_PREFIX, name, set, get, arg, perm)
#define module_param_named(name, value, type, perm) param_check_##type(name, &(value)); module_param_call(name, param_set_##type, param_get_##type, &value, perm); __MODULE_PARM_TYPE(name, #type)
#define module_param(name, type, perm) module_param_named(name, name, type, perm)
#define module_param_string(name, string, len, perm) static struct kparam_string __param_string_##name = { len, string }; module_param_call(name, param_set_copystring, param_get_string, &__param_string_##name, perm); __MODULE_PARM_TYPE(name, "string")
#define __param_check(name, p, type) static inline type *__check_##name(void) { return(p); }
#define param_check_byte(name, p) __param_check(name, p, unsigned char)
#define param_check_short(name, p) __param_check(name, p, short)
#define param_check_ushort(name, p) __param_check(name, p, unsigned short)
#define param_check_int(name, p) __param_check(name, p, int)
#define param_check_uint(name, p) __param_check(name, p, unsigned int)
#define param_check_long(name, p) __param_check(name, p, long)
#define param_check_ulong(name, p) __param_check(name, p, unsigned long)
#define param_check_charp(name, p) __param_check(name, p, char *)
#define param_check_bool(name, p) __param_check(name, p, int)
#define param_check_invbool(name, p) __param_check(name, p, int)
#define module_param_array_named(name, array, type, nump, perm) static struct kparam_array __param_arr_##name = { ARRAY_SIZE(array), nump, param_set_##type, param_get_##type, sizeof(array[0]), array }; module_param_call(name, param_array_set, param_array_get, &__param_arr_##name, perm); __MODULE_PARM_TYPE(name, "array of " #type)
#define module_param_array(name, type, nump, perm) module_param_array_named(name, name, type, nump, perm)
struct module;
#endif
|
