113 lines
2.2 KiB
C
113 lines
2.2 KiB
C
|
#ifndef PXE_TYPES_H
|
||
|
#define PXE_TYPES_H
|
||
|
|
||
|
/** @addtogroup pxe Preboot eXecution Environment (PXE) API
|
||
|
* @{
|
||
|
*/
|
||
|
|
||
|
/** @file
|
||
|
*
|
||
|
* PXE data types
|
||
|
*
|
||
|
*/
|
||
|
|
||
|
#include "stdint.h"
|
||
|
#include "pxe_addr.h" /* Architecture-specific PXE definitions */
|
||
|
#include "errno.h" /* PXE status codes */
|
||
|
|
||
|
/** @defgroup pxe_types PXE data types
|
||
|
*
|
||
|
* 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;
|
||
|
|
||
|
/** A 16-bit unsigned integer */
|
||
|
typedef uint16_t UINT16;
|
||
|
|
||
|
/** A 32-bit unsigned integer */
|
||
|
typedef uint32_t UINT32;
|
||
|
|
||
|
/** A PXE exit code.
|
||
|
*
|
||
|
* Permitted values are PXENV_EXIT_SUCCESS and PXENV_EXIT_FAILURE.
|
||
|
*
|
||
|
*/
|
||
|
typedef uint16_t PXENV_EXIT;
|
||
|
|
||
|
/** A PXE status code.
|
||
|
*
|
||
|
* Status codes are defined in errno.h.
|
||
|
*
|
||
|
*/
|
||
|
typedef uint16_t PXENV_STATUS;
|
||
|
|
||
|
/** An IP address.
|
||
|
*
|
||
|
* This is an IPv4 address in host byte order.
|
||
|
*
|
||
|
*/
|
||
|
typedef uint32_t IP4;
|
||
|
|
||
|
/** A UDP port.
|
||
|
*
|
||
|
* Note that this is in network (big-endian) byte order.
|
||
|
*
|
||
|
*/
|
||
|
typedef uint16_t UDP_PORT;
|
||
|
|
||
|
/** Maximum length of a MAC address */
|
||
|
#define MAC_ADDR_LEN 16
|
||
|
|
||
|
/** A MAC address */
|
||
|
typedef uint8_t MAC_ADDR[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;
|
||
|
|
||
|
#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;
|
||
|
#endif
|
||
|
|
||
|
#ifndef HAVE_ARCH_OFF16
|
||
|
/** An offset within a segment identified by #SEGSEL */
|
||
|
typedef uint16_t OFF16;
|
||
|
#endif
|
||
|
|
||
|
/** A segment:offset address */
|
||
|
typedef struct s_SEGOFF16 {
|
||
|
OFF16 offset; /**< Offset within the segment */
|
||
|
SEGSEL segment; /**< Segment selector */
|
||
|
} SEGOFF16 __attribute__ (( packed ));
|
||
|
|
||
|
/** A segment descriptor */
|
||
|
typedef struct s_SEGDESC {
|
||
|
SEGSEL segment_address; /**< Segment selector */
|
||
|
ADDR32 physical_address; /**< Base address of the segment */
|
||
|
OFF16 seg_size; /**< Size of the segment */
|
||
|
} SEGDESC __attribute__ (( packed ));
|
||
|
|
||
|
/** @} */ /* defgroup */
|
||
|
|
||
|
|
||
|
/** @} */ /* addtogroup */
|
||
|
|
||
|
#endif /* PXE_TYPES_H */
|