dhcp_option Struct Reference

A DHCP option. More...

#include <dhcp.h>

Data Fields
uint8_t	tag
	Tag. More...
uint8_t	len
	Length. More...
uint8_t	data [0]
	Option data. More...

Detailed Description

A DHCP option.

DHCP options consist of a mandatory tag, a length field that is mandatory for all options except DHCP_PAD and DHCP_END, and a payload.

Definition at line 579 of file dhcp.h.

Field Documentation

tag

uint8_t dhcp_option::tag

Tag.

Must be a DHCP_XXX value.

Definition at line 584 of file dhcp.h.

len

uint8_t dhcp_option::len

Length.

This is the length of the data field (i.e. excluding the tag and length fields). For the two tags DHCP_PAD and DHCP_END, the length field is implicitly zero and is also missing, i.e. these DHCP options are only a single byte in length.

Definition at line 593 of file dhcp.h.

Referenced by resize_dhcp_option().

data

uint8_t dhcp_option::data[0]

Option data.

Definition at line 595 of file dhcp.h.

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The documentation for this struct was generated from the following file:

• include/ipxe/dhcp.h