mirror of
https://github.com/openziti/ziti.git
synced 2026-10-12 07:18:36 +00:00
Paul Lorenz
111 lines
3.4 KiB
Go
111 lines
3.4 KiB
Go
/*
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Copyright NetFoundry, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package handler_ctrl
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import (
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"github.com/golang/protobuf/proto"
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"github.com/michaelquigley/pfxlog"
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"github.com/openziti/channel"
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"github.com/openziti/channel/protobufs"
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"github.com/openziti/fabric/pb/ctrl_pb"
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"github.com/openziti/fabric/router/forwarder"
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"github.com/openziti/fabric/router/xgress"
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"github.com/openziti/fabric/router/xlink"
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"github.com/openziti/foundation/identity/identity"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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)
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type dialHandler struct {
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id *identity.TokenId
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ctrl xgress.CtrlChannel
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dialers []xlink.Dialer
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pool handlerPool
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}
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func newDialHandler(id *identity.TokenId, ctrl xgress.CtrlChannel, dialers []xlink.Dialer, forwarder *forwarder.Forwarder, closeNotify chan struct{}) *dialHandler {
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handler := &dialHandler{
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id: id,
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ctrl: ctrl,
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dialers: dialers,
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pool: handlerPool{
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options: forwarder.Options.LinkDial,
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closeNotify: closeNotify,
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},
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}
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handler.pool.Start()
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return handler
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}
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func (self *dialHandler) ContentType() int32 {
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return int32(ctrl_pb.ContentType_DialType)
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}
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func (self *dialHandler) HandleReceive(msg *channel.Message, ch channel.Channel) {
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self.pool.Queue(func() {
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self.handle(msg, ch)
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})
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}
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func (self *dialHandler) handle(msg *channel.Message, _ channel.Channel) {
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dial := &ctrl_pb.Dial{}
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if err := proto.Unmarshal(msg.Body, dial); err == nil {
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log := pfxlog.ChannelLogger("link", "linkDialer").
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WithFields(logrus.Fields{"linkId": dial.LinkId, "routerId": dial.RouterId, "address": dial.Address})
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linkId := self.id.ShallowCloneWithNewToken(dial.LinkId)
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if len(self.dialers) == 1 {
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log.Info("dialing link")
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if err := self.dialers[0].Dial(dial.Address, linkId, self.id.Token); err == nil {
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if err := self.sendLinkMessage(dial.LinkId); err != nil {
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log.WithError(err).Error("error sending link message ")
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}
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log.Info("link established")
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} else {
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log.WithError(err).Error("link dialing failed")
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if err := self.sendLinkFault(dial.LinkId); err != nil {
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log.WithError(err).Error("error sending fault")
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}
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}
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} else {
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log.Errorf("invalid Xlink dialers configuration")
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if err := self.sendLinkFault(dial.LinkId); err != nil {
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log.WithError(err).Error("error sending link fault")
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}
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}
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} else {
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logrus.WithError(err).Error("error unmarshalling dial message")
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}
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}
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func (self *dialHandler) sendLinkMessage(linkId string) error {
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linkMsg := &ctrl_pb.Link{Id: linkId}
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if err := protobufs.MarshalTyped(linkMsg).Send(self.ctrl.Channel()); err != nil {
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return errors.Wrap(err, "error sending link message")
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}
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return nil
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}
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func (self *dialHandler) sendLinkFault(linkId string) error {
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fault := &ctrl_pb.Fault{Subject: ctrl_pb.FaultSubject_LinkFault, Id: linkId}
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if err := protobufs.MarshalTyped(fault).Send(self.ctrl.Channel()); err != nil {
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return errors.Wrap(err, "error sending fault")
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}
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return nil
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}
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