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Diffstat (limited to 'server')
-rw-r--r--server/peer.go110
-rw-r--r--server/server.go116
2 files changed, 154 insertions, 72 deletions
diff --git a/server/peer.go b/server/peer.go
index 6f18f4ec..b65edc11 100644
--- a/server/peer.go
+++ b/server/peer.go
@@ -27,6 +27,19 @@ import (
"time"
)
+type peerMsgType int
+
+const (
+ _ peerMsgType = iota
+ PEER_MSG_PATH
+ PEER_MSG_PEER_DOWN
+)
+
+type peerMsg struct {
+ msgType peerMsgType
+ msgData interface{}
+}
+
type Peer struct {
t tomb.Tomb
globalConfig config.GlobalType
@@ -34,8 +47,8 @@ type Peer struct {
acceptedConnCh chan *net.TCPConn
incoming chan *fsmMsg
outgoing chan *bgp.BGPMessage
- inEventCh chan *message
- outEventCh chan *message
+ serverMsgCh chan *serverMsg
+ peerMsgCh chan *peerMsg
fsm *FSM
adjRib *table.AdjRib
// peer and rib are always not one-to-one so should not be
@@ -45,19 +58,24 @@ type Peer struct {
rf bgp.RouteFamily
capMap map[bgp.BGPCapabilityCode]bgp.ParameterCapabilityInterface
peerInfo *table.PeerInfo
+ siblings map[string]*serverMsgDataPeer
}
-func NewPeer(g config.GlobalType, peer config.NeighborType, outEventCh chan *message) *Peer {
+func NewPeer(g config.GlobalType, peer config.NeighborType, serverMsgCh chan *serverMsg, peerMsgCh chan *peerMsg, peerList []*serverMsgDataPeer) *Peer {
p := &Peer{
globalConfig: g,
peerConfig: peer,
acceptedConnCh: make(chan *net.TCPConn),
incoming: make(chan *fsmMsg, 4096),
outgoing: make(chan *bgp.BGPMessage, 4096),
- inEventCh: make(chan *message, 4096),
- outEventCh: outEventCh,
+ serverMsgCh: serverMsgCh,
+ peerMsgCh: peerMsgCh,
capMap: make(map[bgp.BGPCapabilityCode]bgp.ParameterCapabilityInterface),
}
+ p.siblings = make(map[string]*serverMsgDataPeer)
+ for _, s := range peerList {
+ p.siblings[s.address.String()] = s
+ }
p.fsm = NewFSM(&g, &peer, p.acceptedConnCh, p.incoming, p.outgoing)
peer.BgpNeighborCommonState.State = uint32(bgp.BGP_FSM_IDLE)
if peer.NeighborAddress.To4() != nil {
@@ -70,6 +88,7 @@ func NewPeer(g config.GlobalType, peer config.NeighborType, outEventCh chan *mes
VersionNum: 1,
LocalID: g.RouterId,
RF: p.rf,
+ Address: peer.NeighborAddress,
}
p.adjRib = table.NewAdjRib()
p.rib = table.NewTableManager()
@@ -108,7 +127,14 @@ func (peer *Peer) handleBGPmessage(m *bgp.BGPMessage) {
return
}
peer.adjRib.UpdateIn(pathList)
- peer.sendToHub("", PEER_MSG_PATH, pathList)
+ pm := &peerMsg{
+ msgType: PEER_MSG_PATH,
+ msgData: pathList,
+ }
+ for _, s := range peer.siblings {
+ // TODO: check rf
+ s.peerMsgCh <- pm
+ }
}
}
@@ -140,7 +166,7 @@ func (peer *Peer) handleREST(restReq *api.RestRequest) {
close(restReq.ResponseCh)
}
-func (peer *Peer) handlePeermessage(m *message) {
+func (peer *Peer) handlePeerMsg(m *peerMsg) {
sendpath := func(pList []table.Path, wList []table.Path) {
pathList := append([]table.Path(nil), pList...)
pathList = append(pathList, wList...)
@@ -154,15 +180,46 @@ func (peer *Peer) handlePeermessage(m *message) {
peer.sendMessages(table.CreateUpdateMsgFromPaths(pathList))
}
- switch m.event {
+ switch m.msgType {
case PEER_MSG_PATH:
- pList, wList, _ := peer.rib.ProcessPaths(m.data.([]table.Path))
+ pList, wList, _ := peer.rib.ProcessPaths(m.msgData.([]table.Path))
sendpath(pList, wList)
- case PEER_MSG_DOWN:
- pList, wList, _ := peer.rib.DeletePathsforPeer(m.data.(*table.PeerInfo))
+ case PEER_MSG_PEER_DOWN:
+ pList, wList, _ := peer.rib.DeletePathsforPeer(m.msgData.(*table.PeerInfo))
sendpath(pList, wList)
- case PEER_MSG_REST:
- peer.handleREST(m.data.(*api.RestRequest))
+ }
+}
+
+func (peer *Peer) handleServerMsg(m *serverMsg) {
+ switch m.msgType {
+ case SRV_MSG_PEER_ADDED:
+ d := m.msgData.(*serverMsgDataPeer)
+ peer.siblings[d.address.String()] = d
+ pathList := peer.adjRib.GetInPathList(d.rf)
+ if len(pathList) == 0 {
+ return
+ }
+ pm := &peerMsg{
+ msgType: PEER_MSG_PATH,
+ msgData: pathList,
+ }
+ for _, s := range peer.siblings {
+ // TODO: check rf
+ s.peerMsgCh <- pm
+ }
+ case SRV_MSG_PEER_DELETED:
+ d := m.msgData.(*table.PeerInfo)
+ _, found := peer.siblings[d.Address.String()]
+ if found {
+ delete(peer.siblings, d.Address.String())
+ // TODO: do the same that PEER_MSG_PEER_DOWN handler
+ } else {
+ log.Warning("can not find peer: ", d.Address.String())
+ }
+ case SRV_MSG_API:
+ peer.handleREST(m.msgData.(*api.RestRequest))
+ default:
+ log.Fatal("unknown server msg type ", m.msgType)
}
}
@@ -200,13 +257,21 @@ func (peer *Peer) loop() error {
}
if oldState == bgp.BGP_FSM_ESTABLISHED {
peer.fsm.peerConfig.BgpNeighborCommonState.Uptime = time.Time{}
- peer.sendToHub("", PEER_MSG_DOWN, peer.peerInfo)
+ pm := &peerMsg{
+ msgType: PEER_MSG_PEER_DOWN,
+ msgData: peer.peerInfo,
+ }
+ for _, s := range peer.siblings {
+ s.peerMsgCh <- pm
+ }
}
case FSM_MSG_BGP_MESSAGE:
peer.handleBGPmessage(e.MsgData.(*bgp.BGPMessage))
}
- case m := <-peer.inEventCh:
- peer.handlePeermessage(m)
+ case m := <-peer.serverMsgCh:
+ peer.handleServerMsg(m)
+ case m := <-peer.peerMsgCh:
+ peer.handlePeerMsg(m)
}
}
}
@@ -221,19 +286,6 @@ func (peer *Peer) PassConn(conn *net.TCPConn) {
peer.acceptedConnCh <- conn
}
-func (peer *Peer) SendMessage(msg *message) {
- peer.inEventCh <- msg
-}
-
-func (peer *Peer) sendToHub(destination string, event int, data interface{}) {
- peer.outEventCh <- &message{
- src: peer.peerConfig.NeighborAddress.String(),
- dst: destination,
- event: event,
- data: data,
- }
-}
-
func (peer *Peer) MarshalJSON() ([]byte, error) {
f := peer.fsm
diff --git a/server/server.go b/server/server.go
index 99ea974c..3275e5dc 100644
--- a/server/server.go
+++ b/server/server.go
@@ -21,25 +21,38 @@ import (
log "github.com/Sirupsen/logrus"
"github.com/osrg/gobgp/api"
"github.com/osrg/gobgp/config"
+ "github.com/osrg/gobgp/packet"
"net"
"os"
"strconv"
"strings"
)
+type serverMsgType int
+
const (
- _ = iota
- PEER_MSG_NEW
- PEER_MSG_PATH
- PEER_MSG_DOWN
- PEER_MSG_REST //hacky, fix later
+ _ serverMsgType = iota
+ SRV_MSG_PEER_ADDED
+ SRV_MSG_PEER_DELETED
+ SRV_MSG_API
)
-type message struct {
- src string
- dst string
- event int
- data interface{}
+type serverMsg struct {
+ msgType serverMsgType
+ msgData interface{}
+}
+
+type serverMsgDataPeer struct {
+ peerMsgCh chan *peerMsg
+ address net.IP
+ rf bgp.RouteFamily
+}
+
+type peerMapInfo struct {
+ peer *Peer
+ serverMsgCh chan *serverMsg
+ peerMsgCh chan *peerMsg
+ peerMsgData *serverMsgDataPeer
}
type BgpServer struct {
@@ -49,7 +62,7 @@ type BgpServer struct {
deletedPeerCh chan config.NeighborType
RestReqCh chan *api.RestRequest
listenPort int
- peerMap map[string]*Peer
+ peerMap map[string]peerMapInfo
}
func NewBgpServer(port int) *BgpServer {
@@ -111,8 +124,7 @@ func (server *BgpServer) Serve() {
return f
}
- server.peerMap = make(map[string]*Peer)
- broadcastCh := make(chan *message)
+ server.peerMap = make(map[string]peerMapInfo)
for {
select {
case conn := <-acceptCh:
@@ -123,10 +135,10 @@ func (server *BgpServer) Serve() {
idx := strings.LastIndex(addrPort, ":")
return addrPort[1 : idx-1]
}(conn.RemoteAddr().String())
- peer, found := server.peerMap[remoteAddr]
+ info, found := server.peerMap[remoteAddr]
if found {
log.Info("accepted a new passive connection from ", remoteAddr)
- peer.PassConn(conn)
+ info.peer.PassConn(conn)
} else {
log.Info("can't find configuration for a new passive connection from ", remoteAddr)
conn.Close()
@@ -135,29 +147,59 @@ func (server *BgpServer) Serve() {
addr := peer.NeighborAddress.String()
f := listenFile(peer.NeighborAddress)
SetTcpMD5SigSockopts(int(f.Fd()), addr, peer.AuthPassword)
- p := NewPeer(server.bgpConfig.Global, peer, broadcastCh)
- server.peerMap[peer.NeighborAddress.String()] = p
+ sch := make(chan *serverMsg, 8)
+ pch := make(chan *peerMsg, 4096)
+ l := make([]*serverMsgDataPeer, len(server.peerMap))
+ i := 0
+ for _, v := range server.peerMap {
+ l[i] = v.peerMsgData
+ i++
+ }
+ p := NewPeer(server.bgpConfig.Global, peer, sch, pch, l)
+ d := &serverMsgDataPeer{
+ address: peer.NeighborAddress,
+ peerMsgCh: pch,
+ rf: p.peerInfo.RF,
+ }
+ msg := &serverMsg{
+ msgType: SRV_MSG_PEER_ADDED,
+ msgData: d,
+ }
+ sendServerMsgToAll(server.peerMap, msg)
+ server.peerMap[peer.NeighborAddress.String()] = peerMapInfo{
+ peer: p,
+ serverMsgCh: sch,
+ peerMsgData: d,
+ }
case peer := <-server.deletedPeerCh:
addr := peer.NeighborAddress.String()
f := listenFile(peer.NeighborAddress)
SetTcpMD5SigSockopts(int(f.Fd()), addr, "")
- p, found := server.peerMap[addr]
+ info, found := server.peerMap[addr]
if found {
log.Info("Delete a peer configuration for ", addr)
- p.Stop()
+ info.peer.Stop()
delete(server.peerMap, addr)
+ msg := &serverMsg{
+ msgType: SRV_MSG_PEER_DELETED,
+ msgData: info.peer.peerInfo,
+ }
+ sendServerMsgToAll(server.peerMap, msg)
} else {
log.Info("Can't delete a peer configuration for ", addr)
}
case restReq := <-server.RestReqCh:
server.handleRest(restReq)
-
- case msg := <-broadcastCh:
- server.broadcast(msg)
}
}
}
+func sendServerMsgToAll(peerMap map[string]peerMapInfo, msg *serverMsg) {
+ for _, info := range peerMap {
+ info.serverMsgCh <- msg
+ }
+}
+
func (server *BgpServer) SetGlobalType(g config.GlobalType) {
server.globalTypeCh <- g
}
@@ -170,25 +212,13 @@ func (server *BgpServer) PeerDelete(peer config.NeighborType) {
server.deletedPeerCh <- peer
}
-func (server *BgpServer) broadcast(msg *message) {
- for key := range server.peerMap {
- if key == msg.src {
- continue
- }
- if msg.dst == "" || msg.dst == key {
- peer := server.peerMap[key]
- peer.SendMessage(msg)
- }
- }
-}
-
func (server *BgpServer) handleRest(restReq *api.RestRequest) {
switch restReq.RequestType {
case api.REQ_NEIGHBORS:
result := &api.RestResponse{}
peerList := make([]*Peer, 0)
- for _, peer := range server.peerMap {
- peerList = append(peerList, peer)
+ for _, info := range server.peerMap {
+ peerList = append(peerList, info.peer)
}
j, _ := json.Marshal(peerList)
result.Data = j
@@ -199,9 +229,9 @@ func (server *BgpServer) handleRest(restReq *api.RestRequest) {
remoteAddr := restReq.RemoteAddr
result := &api.RestResponse{}
- peer, found := server.peerMap[remoteAddr]
+ info, found := server.peerMap[remoteAddr]
if found {
- j, _ := json.Marshal(peer)
+ j, _ := json.Marshal(info.peer)
result.Data = j
} else {
result.ResponseErr = fmt.Errorf("Neighbor that has %v does not exist.", remoteAddr)
@@ -211,13 +241,13 @@ func (server *BgpServer) handleRest(restReq *api.RestRequest) {
case api.REQ_LOCAL_RIB:
remoteAddr := restReq.RemoteAddr
result := &api.RestResponse{}
- peer, found := server.peerMap[remoteAddr]
+ info, found := server.peerMap[remoteAddr]
if found {
- msg := message{
- event: PEER_MSG_REST,
- data: restReq,
+ msg := &serverMsg{
+ msgType: SRV_MSG_API,
+ msgData: restReq,
}
- peer.SendMessage(&msg)
+ info.peer.serverMsgCh <- msg
} else {
result.ResponseErr = fmt.Errorf("Neighbor that has %v does not exist.", remoteAddr)
restReq.ResponseCh <- result
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-16 01:53:49 +0000