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https://github.com/netbirdio/netbird.git
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731d3ae464
Before defining if we will use direct or proxy connection we will exchange a message with the other peer if the modes match we keep the decision from the shouldUseProxy function otherwise we skip using direct connection. Added a feature support message to the signal protocol
87 lines
2.2 KiB
Go
87 lines
2.2 KiB
Go
package client
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import (
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"fmt"
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"io"
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"strings"
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"github.com/netbirdio/netbird/signal/proto"
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"github.com/netbirdio/netbird/version"
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"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
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)
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// A set of tools to exchange connection details (Wireguard endpoints) with the remote peer.
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// Status is the status of the client
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type Status string
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const StreamConnected Status = "Connected"
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const StreamDisconnected Status = "Disconnected"
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const (
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// DirectCheck indicates support to direct mode checks
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DirectCheck uint32 = 1
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)
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// FeaturesSupport register protocol supported features
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type FeaturesSupport struct {
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DirectCheck bool
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}
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type Client interface {
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io.Closer
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StreamConnected() bool
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GetStatus() Status
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Receive(msgHandler func(msg *proto.Message) error) error
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Ready() bool
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WaitStreamConnected()
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SendToStream(msg *proto.EncryptedMessage) error
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Send(msg *proto.Message) error
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}
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// UnMarshalCredential parses the credentials from the message and returns a Credential instance
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func UnMarshalCredential(msg *proto.Message) (*Credential, error) {
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credential := strings.Split(msg.GetBody().GetPayload(), ":")
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if len(credential) != 2 {
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return nil, fmt.Errorf("error parsing message body %s", msg.Body)
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}
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return &Credential{
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UFrag: credential[0],
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Pwd: credential[1],
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}, nil
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}
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// MarshalCredential marsharl a Credential instance and returns a Message object
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func MarshalCredential(myKey wgtypes.Key, myPort int, remoteKey wgtypes.Key, credential *Credential, t proto.Body_Type) (*proto.Message, error) {
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return &proto.Message{
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Key: myKey.PublicKey().String(),
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RemoteKey: remoteKey.String(),
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Body: &proto.Body{
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Type: t,
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Payload: fmt.Sprintf("%s:%s", credential.UFrag, credential.Pwd),
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WgListenPort: uint32(myPort),
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NetBirdVersion: version.NetbirdVersion(),
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},
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}, nil
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}
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// Credential is an instance of a GrpcClient's Credential
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type Credential struct {
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UFrag string
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Pwd string
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}
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// ParseFeaturesSupported parses a slice of supported features into FeaturesSupport
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func ParseFeaturesSupported(featuresMessage []uint32) FeaturesSupport {
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var protoSupport FeaturesSupport
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for _, feature := range featuresMessage {
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if feature == DirectCheck {
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protoSupport.DirectCheck = true
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return protoSupport
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}
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}
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return protoSupport
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}
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