blob: ce33f4d9fc2c142bb9cb508d79d7d6bb352ddc59 (
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
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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
#ifndef PXE_TYPES_H
#define PXE_TYPES_H
/** @file
*
* PXE data types
*
*/
#include "stdint.h"
#include "pxe_addr.h" /* Architecture-specific PXE definitions */
#include "errno.h" /* PXE status codes */
/** @addtogroup pxe Preboot eXecution Environment (PXE) API
* @{
*/
/** @defgroup pxe_types PXE data types
*
* Basic PXE data types such as #UINT16, #ADDR32, #SEGSEL etc.
*
* These definitions are based on Table 1-1 ("Data Type Definitions")
* in the Intel PXE specification version 2.1. They have been
* generalised to non-x86 architectures where possible.
*
* @{
*/
/** An 8-bit unsigned integer */
typedef uint8_t UINT8_t;
/** A 16-bit unsigned integer */
typedef uint16_t UINT16_t;
/** A 32-bit unsigned integer */
typedef uint32_t UINT32_t;
/** A PXE exit code.
*
* Permitted values are #PXENV_EXIT_SUCCESS and #PXENV_EXIT_FAILURE.
*
*/
typedef uint16_t PXENV_EXIT_t;
#define PXENV_EXIT_SUCCESS 0x0000 /**< No error occurred */
#define PXENV_EXIT_FAILURE 0x0001 /**< An error occurred */
/** A PXE status code.
*
* Status codes are defined in errno.h.
*
*/
typedef uint16_t PXENV_STATUS_t;
/** An IP address.
*
* This is an IPv4 address in host byte order.
*
*/
typedef uint32_t IP4_t;
/** A UDP port.
*
* @note This data type is in network (big-endian) byte order.
*
*/
typedef uint16_t UDP_PORT_t;
/** Maximum length of a MAC address */
#define MAC_ADDR_LEN 16
/** A MAC address */
typedef uint8_t MAC_ADDR_t[MAC_ADDR_LEN];
/** A physical address.
*
* For x86, this is a 32-bit physical address, and is therefore
* limited to the low 4GB.
*
*/
typedef physaddr_t ADDR32_t;
#ifndef HAVE_ARCH_SEGSEL
/** A segment selector.
*
* For x86, this is a real mode segment (0x0000-0xffff), or a
* protected-mode segment selector, such as could be loaded into a
* segment register.
*
*/
typedef uint16_t SEGSEL_t;
#endif
#ifndef HAVE_ARCH_OFF16
/** An offset within a segment identified by #SEGSEL */
typedef uint16_t OFF16_t;
#endif
/** A segment:offset address */
typedef struct s_SEGOFF16 {
OFF16_t offset; /**< Offset within the segment */
SEGSEL_t segment; /**< Segment selector */
} PACKED SEGOFF16_t;
/** A segment descriptor */
typedef struct s_SEGDESC {
SEGSEL_t segment_address; /**< Segment selector */
ADDR32_t physical_address; /**< Segment base address */
OFF16_t seg_size; /**< Size of the segment */
} PACKED __SEGDESC_t;
/** @} */ /* pxe_types */
/** @} */ /* pxe */
#endif /* PXE_TYPES_H */
|
