p2p

package
v1.3.2 Latest Latest
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 Go to latest Published: Jan 11, 2024 License: MIT Imports: 55 Imported by: 2

README

P2P

Direct connections

If you are running multiple nodes in the local network and exposing all of them is not convenient there is an option to setup network manually, by making couple of nodes publicly available and the rest connected to them directly.

Get network id
  • get it with grpcurl

grpcurl -plaintext 127.0.0.1:9092 spacemesh.v1.DebugService.NetworkInfo

{
  "id": "12D3KooWRfy4Sj4rDHDuBaYw3Mg5d2puwiCyqBCWMziFquaGQ5g8"
}
  • get it from stored data

cat ~/spacemesh/p2p/p2p.key

{"Key":"CAESQAQN38GXvr+L+G+/JWoimpqPBK7I6INe+PKYA+hRJg0I65Q3IPK49Ii9dcnC3+UqB+jMEL16sqDfUubxTs62rZU=","ID":"12D3KooWRfy4Sj4rDHDuBaYw3Mg5d2puwiCyqBCWMziFquaGQ5g8"}
Configuration for public node

Public node should have higher peer limits to help with network connectivity and a list of botnodes. Direct connections should be reciprocal, otherwise public node may prune your private node if overloaded.

Setup more than one public node, and perform rolling upgrades or restart for them if needed.

{
    "p2p": {
        "min-peers": 30,
        "low-peers": 60,
        "high-peers": 100,
        "direct": [
            "/ip4/0.0.0.0/tcp/6000/p2p/12D3KooWRkBh6QayKLb1pDRJGMHE94Lix4ZBVh2BJJeX6mghk8VH"
        ],
        "bootnodes": [
            "/dns4/mainnet-bootnode-10.spacemesh.network/tcp/5000/p2p/12D3KooWHK5m83sNj2eNMJMGAngcS9gBja27ho83t79Q2CD4iRjQ",
            "/dns4/mainnet-bootnode-11.spacemesh.network/tcp/5000/p2p/12D3KooWFrCDS8tc29nxJEYf4sKFXhXw7wMSdhQP4S7tsbfh6ngn"
        ]
    }
}

[!NOTE]
Please note that 0.0.0.0 in the above config will work ONLY if all nodes are on the same host. If you're using multiple hosts make sure that you're using proper IPs on both sides. The bootnodes section can contain any bootnodes (or all) depending on your preference.

Configuration for private node

Set min-peers to the number of peers in the config and disable-dht. low-peers and high-peers should not be lower than min-peers.

{
    "p2p": {
        "listen": "/ip4/0.0.0.0/tcp/6000",
        "min-peers": 1,
        "low-peers": 10,
        "high-peers": 20,
        "disable-dht": true,
        "bootnodes": [],
        "direct": [
            "/ip4/0.0.0.0/tcp/7513/p2p/12D3KooWRfy4Sj4rDHDuBaYw3Mg5d2puwiCyqBCWMziFquaGQ5g8"
        ]
    }
}

[!NOTE]
Please note that 0.0.0.0 in the above config will work ONLY if all nodes are on the same host. If you're using multiple hosts make sure that you're using proper IPs on both sides.

Expected result

Public node will maintain many open connections

ss -npO4 | rg spacemesh | rg 7513 | rg ESTAB | wc -l 52

Private will connect only to the specified public node:

ss -npO4 | rg spacemesh | rg 6000

tcp   ESTAB      0      0              127.0.0.1:7513        127.0.0.1:6000  users:(("go-spacemesh",pid=39165,fd=11)) 
tcp   ESTAB      0      0              127.0.0.1:6000        127.0.0.1:7513  users:(("go-spacemesh",pid=39202,fd=47))

Documentation

Index

Constants

View Source 
const (
	PublicReachability  = "public"
	PrivateReachability = "private"
)

Variables

This section is empty.

Functions

func EnsureIdentity added in v1.0.0 

func EnsureIdentity(dir string) (crypto.PrivKey, error)

EnsureIdentity generates an identity key file in given directory.

func IdentityInfoFromDir added in v1.3.0 

func IdentityInfoFromDir(dir string) (string, error)

IdentityInfoFromDir returns a printable ID from a given identity directory.

func IsNoPeer added in v1.0.0 

func IsNoPeer(p Peer) bool

IsNoPeer checks if it's any peer.

Types

type AddressList added in v1.3.0 

type AddressList []multiaddr.Multiaddr

AddressList represents a list of addresses.

func AddressListFromString added in v1.3.0 

func AddressListFromString(s string) (AddressList, error)

AddressListFromString parses a string containing a Multiaddr and returns it as an AddressList.

func AddressListFromStringSlice added in v1.3.0 

func AddressListFromStringSlice(s []string) (AddressList, error)

AddressListFromStringSlice parses strings in the slice into Multiaddr values and returns them as an AddressList.

func MustParseAddresses added in v1.3.0 

func MustParseAddresses(s ...string) AddressList

MustParseAddresses parses multiaddr strings into AddressList, and panics upon any parse errors.

func (AddressList) String added in v1.3.0 

func (al AddressList) String() string

String implements Stringer.

type Config added in v1.0.0 

type Config struct {
	DataDir            string
	LogLevel           log.Level
	GracePeersShutdown time.Duration
	MaxMessageSize     int

	// see https://lwn.net/Articles/542629/ for reuseport explanation
	DisableReusePort            bool          `mapstructure:"disable-reuseport"`
	DisableNatPort              bool          `mapstructure:"disable-natport"`
	DisableConnectionManager    bool          `mapstructure:"disable-connection-manager"`
	DisableResourceManager      bool          `mapstructure:"disable-resource-manager"`
	DisableDHT                  bool          `mapstructure:"disable-dht"`
	Flood                       bool          `mapstructure:"flood"`
	Listen                      AddressList   `mapstructure:"listen"`
	Bootnodes                   []string      `mapstructure:"bootnodes"`
	Direct                      []string      `mapstructure:"direct"`
	MinPeers                    int           `mapstructure:"min-peers"`
	LowPeers                    int           `mapstructure:"low-peers"`
	HighPeers                   int           `mapstructure:"high-peers"`
	InboundFraction             float64       `mapstructure:"inbound-fraction"`
	OutboundFraction            float64       `mapstructure:"outbound-fraction"`
	AutoscalePeers              bool          `mapstructure:"autoscale-peers"`
	AdvertiseAddress            AddressList   `mapstructure:"advertise-address"`
	AcceptQueue                 int           `mapstructure:"p2p-accept-queue"`
	Metrics                     bool          `mapstructure:"p2p-metrics"`
	Bootnode                    bool          `mapstructure:"p2p-bootnode"`
	ForceReachability           string        `mapstructure:"p2p-reachability"`
	ForceDHTServer              bool          `mapstructure:"force-dht-server"`
	EnableHolepunching          bool          `mapstructure:"p2p-holepunching"`
	PrivateNetwork              bool          `mapstructure:"p2p-private-network"`
	RelayServer                 RelayServer   `mapstructure:"relay-server"`
	IP4Blocklist                []string      `mapstructure:"ip4-blocklist"`
	IP6Blocklist                []string      `mapstructure:"ip6-blocklist"`
	GossipQueueSize             int           `mapstructure:"gossip-queue-size"`
	GossipValidationThrottle    int           `mapstructure:"gossip-validation-throttle"`
	GossipAtxValidationThrottle int           `mapstructure:"gossip-atx-validation-throttle"`
	PingPeers                   []string      `mapstructure:"ping-peers"`
	PingInterval                time.Duration `mapstructure:"ping-interval"`
	Relay                       bool          `mapstructure:"relay"`
	StaticRelays                []string      `mapstructure:"static-relays"`
	EnableTCPTransport          bool          `mapstructure:"enable-tcp-transport"`
	EnableQUICTransport         bool          `mapstructure:"enable-quic-transport"`
	EnableRoutingDiscovery      bool          `mapstructure:"enable-routing-discovery"`
	RoutingDiscoveryAdvertise   bool          `mapstructure:"routing-discovery-advertise"`
	AdvertiseInterval           time.Duration `mapstructure:"advertise-interval"`
}

Config for all things related to p2p layer.

func DefaultConfig added in v1.0.0 

func DefaultConfig() Config

DefaultConfig config.

func (*Config) Validate added in v1.0.7 

func (cfg *Config) Validate() error

type ConnectionInfo added in v1.1.2 

type ConnectionInfo struct {
	Address  ma.Multiaddr
	Uptime   time.Duration
	Outbound bool
}

type Host added in v1.0.0 

type Host struct {
	host.Host
	*pubsub.PubSub
	// contains filtered or unexported fields
}

Host is a conveniency wrapper for all p2p related functionality required to run a full spacemesh node.

func New 

func New(
	_ context.Context,
	logger log.Log,
	cfg Config,
	prologue []byte,
	quicNetCookie handshake.NetworkCookie,
	opts ...Opt,
) (*Host, error)

New initializes libp2p host configured for spacemesh.

func Upgrade added in v1.0.0 

func Upgrade(h host.Host, opts ...Opt) (*Host, error)

Upgrade creates Host instance from host.Host.

func (*Host) Connected added in v1.1.3 

func (fh *Host) Connected(p Peer) bool

func (*Host) ConnectedPeerInfo added in v1.1.2 

func (fh *Host) ConnectedPeerInfo(id peer.ID) *PeerInfo

ConnectedPeerInfo retrieves a peer info object for the given peer.ID, if the given peer is not connected then nil is returned.

func (*Host) DHTServerEnabled added in v1.3.0 

func (fh *Host) DHTServerEnabled() bool

DHTServerEnabled returns true if the server has DHT running in server mode.

func (*Host) GetPeers added in v1.0.0 

func (fh *Host) GetPeers() []Peer

GetPeers returns connected peers.

func (*Host) HaveRelay added in v1.3.0 

func (fh *Host) HaveRelay() bool

HaveRelay returns true if this host can be used as a relay, that is, it supports relay service and has public reachability.

func (*Host) KnownAddresses added in v1.3.0 

func (fh *Host) KnownAddresses() []ma.Multiaddr

KnownAddresses returns the addresses by which the peers know this one.

func (*Host) ListenAddresses added in v1.3.0 

func (fh *Host) ListenAddresses() []ma.Multiaddr

ListenAddresses returns the addresses on which this host listens.

func (*Host) NATDeviceType added in v1.3.0 

func (fh *Host) NATDeviceType() (udpNATType, tcpNATType network.NATDeviceType)

NATDeviceType returns NATDeviceType returns the NAT device types for UDP and TCP so far for this host.

func (*Host) NeedPeerDiscovery added in v1.3.0 

func (fh *Host) NeedPeerDiscovery() bool

NeedPeerDiscovery returns true if it makes sense to do additional discovery of non-DHT (NATed) peers.

func (*Host) PeerCount added in v1.0.0 

func (fh *Host) PeerCount() uint64

PeerCount returns number of connected peers.

func (*Host) PeerProtocols added in v1.1.0 

func (fh *Host) PeerProtocols(p Peer) ([]protocol.ID, error)

PeerProtocols returns the protocols supported by peer.

func (*Host) Ping added in v1.3.0 

func (fh *Host) Ping() *Ping

Ping returns Ping structure for this Host, if any PingPeers are specified in the config. Otherwise, it returns nil.

func (*Host) Reachability added in v1.3.0 

func (fh *Host) Reachability() network.Reachability

Reachability returns reachability of the host (public, private, unknown).

func (*Host) Start added in v1.0.0 

func (fh *Host) Start() error

func (*Host) Stop added in v1.0.0 

func (fh *Host) Stop() error

Stop background workers and release external resources.

type Opt added in v1.0.0 

type Opt func(fh *Host)

Opt is for configuring Host.

func WithBootnodes added in v1.1.2 

func WithBootnodes(bootnodes map[peer.ID]struct{}) Opt

func WithConfig added in v1.0.0 

func WithConfig(cfg Config) Opt

WithConfig sets Config for Host.

func WithContext added in v1.0.0 

func WithContext(ctx context.Context) Opt

WithContext set context for Host.

func WithDirectNodes added in v1.1.2 

func WithDirectNodes(direct map[peer.ID]struct{}) Opt

func WithLog added in v1.0.0 

func WithLog(logger log.Log) Opt

WithLog configures logger for Host.

func WithNodeReporter added in v1.0.0 

func WithNodeReporter(reporter func()) Opt

WithNodeReporter updates reporter that is notified every time when node added or removed a peer.

func WithRelayCandidateChannel added in v1.3.0 

func WithRelayCandidateChannel(relayCh chan<- peer.AddrInfo) Opt

type Peer 

type Peer = peer.ID

Peer is an alias to libp2p's peer.ID. 

const NoPeer Peer = ""

NoPeer is used when peer doesn't matter.

type PeerInfo added in v1.1.2 

type PeerInfo struct {
	ID          Peer
	Connections []ConnectionInfo
	Tags        []string
}

PeerInfo groups relevant information about a peer.

type Ping added in v1.3.0 

type Ping struct {
	sync.Mutex
	// contains filtered or unexported fields
}

func NewPing added in v1.3.0 

func NewPing(logger *zap.Logger, h host.Host, peers []peer.ID, pr routing.PeerRouting, opts ...PingOpt) *Ping

func (*Ping) Start added in v1.3.0 

func (p *Ping) Start()

func (*Ping) Stats added in v1.3.0 

func (p *Ping) Stats(peerID peer.ID) (numSuccess, numFail int)

func (*Ping) Stop added in v1.3.0 

func (p *Ping) Stop()

type PingOpt added in v1.3.0 

type PingOpt func(p *Ping)

func WithPingInterval added in v1.3.0 

func WithPingInterval(d time.Duration) PingOpt

type RelayServer added in v1.0.7 

type RelayServer struct {
	Enable                 bool          `mapstructure:"enable"`
	Reservations           int           `mapstructure:"reservations"`
	TTL                    time.Duration `mapstructure:"ttl"`
	ConnDurationLimit      time.Duration `mapstructure:"conn-duration-limit"`
	ConnDataLimit          int64         `mapstructure:"conn-data-limit"`
	MaxCircuits            int           `mapstructure:"max-circuits"`
	BufferSize             int           `mapstructure:"buffer-size"`
	MaxReservationsPerPeer int           `mapstructure:"max-reservations-per-peer"`
	MaxReservationsPerIP   int           `mapstructure:"max-reservations-per-ip"`
	MaxReservationsPerASN  int           `mapstructure:"max-reservations-per-asn"`
}

Source Files

View all Source files

Directories

Path Synopsis
mocks
Code generated by MockGen.
 Code generated by MockGen.
nolint
 nolint
mocks
Code generated by MockGen.
 Code generated by MockGen.

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