DHCP

Dynamic Host Configuration Protocol. More...

Data Structures
struct	PACKED
	stores IPv6 address More...

Macros
#define	oC_DHCP_MAGIC_COOKIE   0x63825363
	Magic cookie for the DHCP message.
#define	oC_DHCP_END_OPTION   0xFF
	Value for marking last entry in the options array.

Typedefs
typedef struct PACKED	oC_Dhcp_Message_t
	stores DHCP message More...

Enumerations

Detailed Description

The module is for communication with DHCP server (or client)

Typedef Documentation

typedef struct PACKED oC_Dhcp_Message_t

The type is for storing DHCP message format.

Enumeration Type Documentation

enum oC_Dhcp_Flags_t

The type is for storing flags used in the oC_Dhcp_Message_t type.

Enumerator
oC_Dhcp_Flags_None	None flag is set.
oC_Dhcp_Flags_Broadcast	Broadcast flag - a client does not know its own IP address so it send the message as broadcast. The server receives the message and responds for it also as a broadcast

Definition at line 125 of file oc_dhcp.h.

enum oC_Dhcp_HardwareType_t

The type is for storing hardware type used for the local network.

Enumerator
oC_Dhcp_HardwareType_Ethernet	Ethernet (10Mb)
oC_Dhcp_HardwareType_IEEE802Networks	IEEE 802 Networks.
oC_Dhcp_HardwareType_ARCNET	ARCNET.
oC_Dhcp_HardwareType_LocalTalk	LocalTalk.
oC_Dhcp_HardwareType_LocalNet	LocalNet (IBM PCNet or SYTEK LocalNET)
oC_Dhcp_HardwareType_SMDS	SMDS.
oC_Dhcp_HardwareType_FrameRelay	Frame Relay.
oC_Dhcp_HardwareType_AsynchronousTransferMode	Asynchronous Transfer Mode (ATM)
oC_Dhcp_HardwareType_HDLC	HDLC.
oC_Dhcp_HardwareType_FibreChannel	Fibre Channel.
oC_Dhcp_HardwareType_SerialLine	Serial Line.

Definition at line 102 of file oc_dhcp.h.

enum oC_Dhcp_OperationCode_t

Enumerator
oC_Dhcp_OperationCode_Request	Request to a server.
oC_Dhcp_OperationCode_Reply	Reply from the server.

Definition at line 88 of file oc_dhcp.h.

enum oC_Dhcp_Option_t

The type is for storing DHCP options that can be placed in the DHCP message. You should use oC_Dhcp_OptionLength_t type to receive size in bytes required for the given option.

See also

oC_Dhcp_OptionLength_t

Enumerator
oC_Dhcp_Option_Pad	The PAD value used to align word bound.
oC_Dhcp_Option_End	The end option marks end of the options array.
oC_Dhcp_Option_SubnetMask	Specifies subnetwork mask.
oC_Dhcp_Option_TimeOffset	Offset of the client subnetwork in seconds from Coordinated Universal Time (UTC).
oC_Dhcp_Option_Router	The router option specifies a list of IP addresses on the client subnetwork.
oC_Dhcp_Option_DnsServer	List of DNS servers in the subnetwork.
oC_Dhcp_Option_Hostname	Specifies name of the client.
oC_Dhcp_Option_DefaultTTL	Specifies default TTL value for packets.
oC_Dhcp_Option_MTU	Specifies MTU for the interface.
oC_Dhcp_Option_Broadcast	Address to use in client subnetwork for sending broadcast packets.
oC_Dhcp_Option_TcpTTL	Default TTL value for TCP segments.
oC_Dhcp_Option_Ntp	List of Network Time Protocol Servers available in the subnetwork.
oC_Dhcp_Option_RequestedIp	The option allows to request the specified static IP.
oC_Dhcp_Option_LeaseTime	Allows the client to request a lease time for the IP address. The time is in seconds
oC_Dhcp_Option_Overload	Used by the DHCP server to mark, that File or SName or both of these fields are overloaded to store DHCP options.
oC_Dhcp_Option_ServerId	Destination IP address of DHCP server.
oC_Dhcp_Option_RequestedList	Used by the DHCP client to request values for specified configuration parameters.
oC_Dhcp_Option_MessageType	Used to mark type of the message - 1 for Discover, 2 - Offer, 3 - Request, 4 - Declide, 5 - Pack , 6 - Pnak, 7 - Release, 8 - Inform
oC_Dhcp_Option_T1RenewalTime	Time interval from address assignment until the client have to renew the address.
oC_Dhcp_Option_T2RebingingTime	Time interval until the client transitions to the REBINDING state.
oC_Dhcp_Option_ClientId	Used by the DHCP clients to specify their unique ID.
oC_Dhcp_Option_TftpServerName	When the SName field is used for options, this field specifies name of the TFTP server.
oC_Dhcp_Option_Bootfile	When the File field is used for options, this field specifies a boot file name.

Definition at line 142 of file oc_dhcp.h.