blob: 90d4ff9b7d3665b322cc57ba3569e1f16081edea (
plain) (
blame)
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
|
#ifndef _GPXE_NVO_H
#define _GPXE_NVO_H
/** @file
*
* Non-volatile stored options
*
*/
#include <stdint.h>
struct nvs_device;
struct dhcp_option_block;
/**
* A fragment of a non-volatile storage device used for stored options
*/
struct nvo_fragment {
/** Starting address of fragment within NVS device */
unsigned int address;
/** Length of fragment */
size_t len;
};
/**
* A block of non-volatile stored options
*/
struct nvo_block {
/** Underlying non-volatile storage device */
struct nvs_device *nvs;
/** List of option-containing fragments
*
* The list is terminated by a fragment with a length of zero.
*/
struct nvo_fragment *fragments;
/** Total length of all fragments
*
* This field is filled in by nvo_register().
*/
size_t total_len;
/** DHCP options block */
struct dhcp_option_block *options;
};
extern int nvo_register ( struct nvo_block *nvo );
extern int nvo_save ( struct nvo_block *nvo );
extern void nvo_unregister ( struct nvo_block *nvo );
#endif /* _GPXE_NVO_H */
|
