rpki: support show the state of RPKI servers

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

1 files changed, 99 insertions, 38 deletions

diff --git a/server/rpki.go b/server/rpki.go
index 53a56e04..dc8a94cc 100644
--- a/server/rpki.go
+++ b/server/rpki.go
@@ -19,12 +19,14 @@ import (
 	"bufio"
 	"bytes"
 	"fmt"
+	log "github.com/Sirupsen/logrus"
 	"github.com/armon/go-radix"
 	"github.com/osrg/gobgp/api"
 	"github.com/osrg/gobgp/config"
 	"github.com/osrg/gobgp/packet"
 	"github.com/osrg/gobgp/table"
 	"net"
+	"time"
 )
 
 type roa struct {
@@ -48,12 +50,12 @@ func (r *roa) toApiStruct() *api.ROA {
 }
 
 type roaClient struct {
-	url      string
 	roas     map[bgp.RouteFamily]*radix.Tree
-	outgoing chan *roa
+	outgoing chan []byte
+	config   config.RpkiServers
 }
 
-func (c *roaClient) recieveROA() chan *roa {
+func (c *roaClient) recieveROA() chan []byte {
 	return c.outgoing
 }
 
@@ -65,33 +67,91 @@ func roa2key(r *roa) string {
 	return buffer.String()[:r.PrefixLen]
 }
 
-func (c *roaClient) handleRTRMsg(r *roa) {
-	if r.Prefix.To4() != nil {
-		c.roas[bgp.RF_IPv4_UC].Insert(roa2key(r), r)
+func (c *roaClient) handleRTRMsg(buf []byte) {
+	received := &c.config.RpkiServerList[0].RpkiServerState.RpkiMessages.RpkiReceived
+
+	m, _ := bgp.ParseRTR(buf)
+	if m != nil {
+		switch msg := m.(type) {
+		case *bgp.RTRSerialNotify:
+			received.SerialNotify++
+		case *bgp.RTRSerialQuery:
+		case *bgp.RTRResetQuery:
+		case *bgp.RTRCacheResponse:
+			received.CacheResponse++
+		case *bgp.RTRIPPrefix:
+			p := make([]byte, len(msg.Prefix))
+			copy(p, msg.Prefix)
+			r := &roa{
+				AS:        msg.AS,
+				PrefixLen: msg.PrefixLen,
+				MaxLen:    msg.MaxLen,
+				Prefix:    p,
+			}
+			if r.Prefix.To4() != nil {
+				received.Ipv4Prefix++
+				c.roas[bgp.RF_IPv4_UC].Insert(roa2key(r), r)
+			} else {
+				received.Ipv6Prefix++
+				c.roas[bgp.RF_IPv6_UC].Insert(roa2key(r), r)
+			}
+		case *bgp.RTREndOfData:
+			received.EndOfData++
+		case *bgp.RTRCacheReset:
+			received.CacheReset++
+		case *bgp.RTRErrorReport:
+		}
 	} else {
-		c.roas[bgp.RF_IPv6_UC].Insert(roa2key(r), r)
+		received.Error++
 	}
 }
 
 func (c *roaClient) handleGRPC(grpcReq *GrpcRequest) {
-	if tree, ok := c.roas[grpcReq.RouteFamily]; ok {
+	switch grpcReq.RequestType {
+	case REQ_RPKI:
 		results := make([]*GrpcResponse, 0)
-		tree.Walk(func(s string, v interface{}) bool {
-			r, _ := v.(*roa)
+		for _, s := range c.config.RpkiServerList {
+			state := &s.RpkiServerState
+			rpki := &api.RPKI{
+				Conf: &api.RPKIConf{
+					Address: s.RpkiServerConfig.Address.String(),
+				},
+				State: &api.RPKIState{
+					Uptime:       state.Uptime,
+					ReceivedIpv4: int32(c.roas[bgp.RF_IPv4_UC].Len()),
+					ReceivedIpv6: int32(c.roas[bgp.RF_IPv6_UC].Len()),
+				},
+			}
 			result := &GrpcResponse{}
-			result.Data = r.toApiStruct()
+			result.Data = rpki
 			results = append(results, result)
-			return false
-		})
+		}
 		go sendMultipleResponses(grpcReq, results)
+
+	case REQ_ROA:
+		if len(c.config.RpkiServerList) == 0 || c.config.RpkiServerList[0].RpkiServerConfig.Address.String() != grpcReq.Name {
+			result := &GrpcResponse{}
+			result.ResponseErr = fmt.Errorf("RPKI server that has %v doesn't exist.", grpcReq.Name)
+
+			grpcReq.ResponseCh <- result
+			break
+		}
+
+		if tree, ok := c.roas[grpcReq.RouteFamily]; ok {
+			results := make([]*GrpcResponse, 0)
+			tree.Walk(func(s string, v interface{}) bool {
+				r, _ := v.(*roa)
+				result := &GrpcResponse{}
+				result.Data = r.toApiStruct()
+				results = append(results, result)
+				return false
+			})
+			go sendMultipleResponses(grpcReq, results)
+		}
 	}
 }
 
 func (c *roaClient) validate(pathList []*table.Path) {
-	if c.url == "" {
-		return
-	}
-
 	for _, path := range pathList {
 		if tree, ok := c.roas[path.GetRouteFamily()]; ok {
 			_, n, _ := net.ParseCIDR(path.GetNlri().String())
@@ -115,16 +175,28 @@ func (c *roaClient) validate(pathList []*table.Path) {
 	}
 }
 
-func newROAClient(url string) (*roaClient, error) {
+func newROAClient(conf config.RpkiServers) (*roaClient, error) {
+	var url string
+
 	c := &roaClient{
-		url:  url,
-		roas: make(map[bgp.RouteFamily]*radix.Tree),
+		roas:   make(map[bgp.RouteFamily]*radix.Tree),
+		config: conf,
 	}
 	c.roas[bgp.RF_IPv4_UC] = radix.New()
 	c.roas[bgp.RF_IPv6_UC] = radix.New()
 
-	if url == "" {
+	if len(conf.RpkiServerList) == 0 {
 		return c, nil
+	} else {
+		if len(conf.RpkiServerList) > 1 {
+			log.Warn("currently only one RPKI server is supposed")
+		}
+		if conf.RpkiServerList[0].RpkiServerConfig.Address.To16() == nil {
+			url = fmt.Sprintf("%s", conf.RpkiServerList[0].RpkiServerConfig.Address)
+		} else {
+			url = fmt.Sprintf("[%s]", conf.RpkiServerList[0].RpkiServerConfig.Address)
+		}
+		url += fmt.Sprintf(":%d", conf.RpkiServerList[0].RpkiServerConfig.Port)
 	}
 
 	conn, err := net.Dial("tcp", url)
@@ -132,33 +204,22 @@ func newROAClient(url string) (*roaClient, error) {
 		return c, err
 	}
 
+	state := &conf.RpkiServerList[0].RpkiServerState
+	state.Uptime = time.Now().Unix()
 	r := bgp.NewRTRResetQuery()
 	data, _ := r.Serialize()
 	conn.Write(data)
+	state.RpkiMessages.RpkiSent.ResetQuery++
 	reader := bufio.NewReader(conn)
 	scanner := bufio.NewScanner(reader)
 	scanner.Split(bgp.SplitRTR)
 
-	ch := make(chan *roa)
+	ch := make(chan []byte)
 	c.outgoing = ch
 
-	go func(ch chan *roa) {
+	go func(ch chan []byte) {
 		for scanner.Scan() {
-			m, _ := bgp.ParseRTR(scanner.Bytes())
-			if m != nil {
-				switch msg := m.(type) {
-				case *bgp.RTRIPPrefix:
-					p := make([]byte, len(msg.Prefix))
-					copy(p, msg.Prefix)
-					ch <- &roa{
-						AS:        msg.AS,
-						PrefixLen: msg.PrefixLen,
-						MaxLen:    msg.MaxLen,
-						Prefix:    p,
-					}
-				}
-
-			}
+			ch <- scanner.Bytes()
 		}
 	}(ch)