dhcp

package

v0.4.1 Latest Latest Go to latest Published: Aug 7, 2021 License: MIT Imports: 17 Imported by: 0

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Repository

github.com/icexin/eggos

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Documentation ¶

Overview ¶

Package dhcp implements a DHCP client and server as described in RFC 2131.

Index ¶

func DialUDP(s *stack.Stack, laddr, raddr *tcpip.FullAddress, ...) (*gonet.UDPConn, error)
type Client
- func NewClient(s *stack.Stack, nicid tcpip.NICID, linkAddr tcpip.LinkAddress) *Client
type Config

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func DialUDP ¶ added in v0.2.0

func DialUDP(s *stack.Stack, laddr, raddr *tcpip.FullAddress, network tcpip.NetworkProtocolNumber) (*gonet.UDPConn, error)

Types ¶

type Client ¶

type Client struct {
	// contains filtered or unexported fields
}

Client is a DHCP client.

func NewClient ¶

func NewClient(s *stack.Stack, nicid tcpip.NICID, linkAddr tcpip.LinkAddress) *Client

NewClient creates a DHCP client.

TODO(crawshaw): add s.LinkAddr(nicid) to *stack.Stack.

func (*Client) Address ¶

func (c *Client) Address() tcpip.Address

Address reports the IP address acquired by the DHCP client.

func (*Client) Config ¶

func (c *Client) Config() Config

Config reports the DHCP configuration acquired with the IP address lease.

func (*Client) Request ¶

func (c *Client) Request(ctx context.Context, requestedAddr tcpip.Address) error

Request executes a DHCP request session.

On success, it adds a new address to this client's TCPIP stack. If the server sets a lease limit a timer is set to automatically renew it.

func (*Client) Shutdown ¶

func (c *Client) Shutdown()

Shutdown relinquishes any lease and ends any outstanding renewal timers.

func (*Client) Start ¶

func (c *Client) Start()

Start starts the DHCP client. It will periodically search for an IP address using the Request method.

type Config ¶

type Config struct {
	ServerAddress    tcpip.Address     // address of the server
	SubnetMask       tcpip.AddressMask // client address subnet mask
	Gateway          tcpip.Address     // client default gateway
	DomainNameServer tcpip.Address     // client domain name server
	LeaseLength      time.Duration     // length of the address lease
}

Config is standard DHCP configuration.

Source Files ¶

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