JooHyung Kim zeroFruit

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zeroFruit / host.go

Created October 31, 2020 12:19

Modeling the Internet from the scratch: Link-layer, LAN, Switch - Code snippet: Network Topology

	package link

	type Link struct {
	cost uint
	ep1 EndPoint
	ep2 EndPoint
	}

	func (l *Link) AttachEndpoint(ep EndPoint) error {
	...

zeroFruit / addr.go

Created October 31, 2020 12:21

Modeling the Internet from the scratch: Link-layer, LAN, Switch - Code snippet: MAC address

zeroFruit / host.go

Last active October 31, 2020 12:22

Modeling the Internet from the scratch: Link-layer, LAN, Switch - Code snippet: Host, Interface

zeroFruit / swch.go

Created October 31, 2020 12:24

Modeling the Internet from the scratch: Link-layer, LAN, Switch - Code snippet: Switch

	type ForwardEntry struct {
	// Incoming is port id attached to switch
	Incoming Id

	// Addr is destination node address
	Addr types.HwAddr

	// Time is timestamp when this entry is created
	Time time.Time
	}

zeroFruit / port.go

Created October 31, 2020 12:25

Modeling the Internet from the scratch: Link-layer, LAN, Switch - Code snippet: Port

	// Port can transmit data and can be point of link. But it has no hardware
	// address. Before using Port, it must register its own Id
	type Port interface {
	Transmitter
	EndPoint
	Register(id Id)
	Registered() bool
	}

zeroFruit / swch.go

Created October 31, 2020 12:28

Modeling the Internet from the scratch: Link-layer, LAN, Switch - Code snippet: Switch Forwarding

	// Forward receives id of port it receives frame, address of sender
	// and frame to send to receiver. Based on id and address it determines whether to
	// broadcast frame or forward it to others, otherwise just discard frame.
	func (s *Switch) Forward(incoming Id, frame na.Frame) error {
	s.Table.Update(incoming, frame.Src)
	frm, err := s.frmEnc.Encode(frame)
	if err != nil {
	return err
	}

zeroFruit / network.go

Created October 31, 2020 12:30

Modeling the Internet from the scratch: Link-layer, LAN, Switch - Code snippet: Build network-1

	func Build() (host1 link.Host, host2 link.Host, host3 *link.Host,
	swch1 link.Switch, swch2 link.Switch) {
	// setup node
	host1 = link.NewHost()
	host2 = link.NewHost()
	host3 = link.NewHost()
	swch1 = link.NewSwitch()
	swch2 = link.NewSwitch()
	}

zeroFruit / network.go

Created October 31, 2020 12:31

Modeling the Internet from the scratch: Link-layer, LAN, Switch - Code snippet: Build network-2

	func Build() (host1 link.Host, host2 link.Host, host3 *link.Host,
	swch1 link.Switch, swch2 link.Switch) {
	// setup node
	...
	// setup interface
	intf1 := link.NewInterface(40001, link.AddrFromStr("11-11-11-11-11-11"), host1)
	attachInterface(host1, intf1)

	intf2 := link.NewInterface(40002, link.AddrFromStr("22-22-22-22-22-22"), host2)
	attachInterface(host2, intf2)

zeroFruit / network.go

Created October 31, 2020 12:33

Modeling the Internet from the scratch: Link-layer, LAN, Switch - Code snippet: Build network-3

	func Build() (host1 link.Host, host2 link.Host, host3 *link.Host,
	swch1 link.Switch, swch2 link.Switch) {
	// setup node
	// setup interface
	...
	// setup link
	link1 := link.NewLink(1)
	attachLink(intf1, link1)
	attachLink(sp11, link1)

zeroFruit / Cosmovisor directory structure.txt

Created July 5, 2022 00:27

Cosmos Dev Series: Cosmos-SDK-based Blockchain Upgrade