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authorKoren Lev <korenlev@gmail.com>2018-11-21 18:46:54 +0200
committerOle Trøan <otroan@employees.org>2018-11-22 06:31:30 +0000
commit19ca78fbd7567c676beefc2b511dfdcd9f20201a (patch)
tree3f5a816566e73777bc28cd50a58dbb685eabf970 /extras/vpp_if_stats/vpp_if_stats.go
parent15e8e681813a2e88dad107b5fe238bc8abee17d2 (diff)
stats: golang vpp_if_stats_client
see README for details Change-Id: Ida603ccaee21dabc903512699b5b355cebb70320 Signed-off-by: Koren Lev <korenlev@gmail.com>
Diffstat (limited to 'extras/vpp_if_stats/vpp_if_stats.go')
-rwxr-xr-xextras/vpp_if_stats/vpp_if_stats.go223
1 files changed, 223 insertions, 0 deletions
diff --git a/extras/vpp_if_stats/vpp_if_stats.go b/extras/vpp_if_stats/vpp_if_stats.go
new file mode 100755
index 00000000000..48ce0853d1e
--- /dev/null
+++ b/extras/vpp_if_stats/vpp_if_stats.go
@@ -0,0 +1,223 @@
+package main
+
+import (
+ "flag"
+ "fmt"
+ "git.fd.io/govpp.git"
+ "git.fd.io/govpp.git/adapter"
+ "git.fd.io/govpp.git/adapter/vppapiclient"
+ "git.fd.io/govpp.git/api"
+ "git.fd.io/govpp.git/core"
+ "git.fd.io/govpp.git/examples/bin_api/interfaces"
+ "git.fd.io/govpp.git/examples/bin_api/vpe"
+ "log"
+)
+
+//////////////////////////////////////
+///////// Data structs ///////////
+//////////////////////////////////////
+
+const defaultStatsSocketPath = "/run/vpp/stats.sock"
+const defaultShmPrefix = ""
+
+func parseMacAddress(l2Address []byte, l2AddressLength uint32) string {
+ var mac string
+ for i := uint32(0); i < l2AddressLength; i++ {
+ mac += fmt.Sprintf("%02x", l2Address[i])
+ if i < l2AddressLength-1 {
+ mac += ":"
+ }
+ }
+ return mac
+}
+
+type interfaceStats struct {
+ TxBytes uint64
+ TxPackets uint64
+ TxErrors uint64
+ RxBytes uint64
+ RxPackets uint64
+ RxErrors uint64
+ Drops uint64
+ Punts uint64
+}
+
+type vppInterface struct {
+ interfaces.SwInterfaceDetails
+ Stats interfaceStats
+}
+
+type vppConnector struct {
+ statsSocketPath string
+ shmPrefix string
+
+ conn *core.Connection
+ api api.Channel
+ stats adapter.StatsAPI
+
+ VppDetails vpe.ShowVersionReply
+ Interfaces []*vppInterface
+}
+
+//////////////////////////////////////
+///////// VPP workflow ///////////
+//////////////////////////////////////
+
+func (v *vppConnector) getVppVersion() error {
+ if err := v.api.SendRequest(&vpe.ShowVersion{}).ReceiveReply(&v.VppDetails); err != nil {
+ return fmt.Errorf("failed to fetch vpp version: %v", err)
+ }
+ return nil
+}
+
+func (v *vppConnector) getInterfaces() error {
+ ifCtx := v.api.SendMultiRequest(&interfaces.SwInterfaceDump{})
+ for {
+ ifDetails := interfaces.SwInterfaceDetails{}
+ stop, err := ifCtx.ReceiveReply(&ifDetails)
+ if err != nil {
+ return fmt.Errorf("failed to fetch vpp interface: %v", err)
+ }
+ if stop {
+ break
+ }
+
+ v.Interfaces = append(v.Interfaces, &vppInterface{SwInterfaceDetails: ifDetails})
+ }
+ return nil
+}
+
+func (v *vppConnector) connect() (err error) {
+ if v.conn, err = govpp.Connect(v.shmPrefix); err != nil {
+ return fmt.Errorf("failed to connect to vpp: %v", err)
+ }
+
+ if v.api, err = v.conn.NewAPIChannel(); err != nil {
+ return fmt.Errorf("failed to create api channel: %v", err)
+ }
+
+ v.stats = vppapiclient.NewStatClient(v.statsSocketPath)
+ if err = v.stats.Connect(); err != nil {
+ return fmt.Errorf("failed to connect to Stats adapter: %v", err)
+ }
+
+ return
+}
+
+func (v *vppConnector) disconnect() {
+ if v.stats != nil {
+ v.stats.Disconnect()
+ }
+ if v.conn != nil {
+ v.conn.Disconnect()
+ }
+}
+
+func (v *vppConnector) reduceCombinedCounters(stat *adapter.StatEntry) *[]adapter.CombinedCounter {
+ counters := stat.Data.(adapter.CombinedCounterStat)
+ stats := make([]adapter.CombinedCounter, len(v.Interfaces))
+ for _, workerStats := range counters {
+ for i, interfaceStats := range workerStats {
+ stats[i].Bytes += interfaceStats.Bytes
+ stats[i].Packets += interfaceStats.Packets
+ }
+ }
+ return &stats
+}
+
+func (v *vppConnector) reduceSimpleCounters(stat *adapter.StatEntry) *[]adapter.Counter {
+ counters := stat.Data.(adapter.SimpleCounterStat)
+ stats := make([]adapter.Counter, len(v.Interfaces))
+ for _, workerStats := range counters {
+ for i, interfaceStats := range workerStats {
+ stats[i] += interfaceStats
+ }
+ }
+ return &stats
+}
+
+func (v *vppConnector) getStatsForAllInterfaces() error {
+ statsDump, err := v.stats.DumpStats("/if")
+ if err != nil {
+ return fmt.Errorf("failed to dump vpp Stats: %v", err)
+ }
+
+ stats := func(i int) *interfaceStats { return &v.Interfaces[uint32(i)].Stats }
+
+ for _, stat := range statsDump {
+ switch stat.Name {
+ case "/if/tx":
+ {
+ for i, counter := range *v.reduceCombinedCounters(stat) {
+ stats(i).TxBytes = uint64(counter.Bytes)
+ stats(i).TxPackets = uint64(counter.Packets)
+ }
+ }
+ case "/if/rx":
+ {
+ for i, counter := range *v.reduceCombinedCounters(stat) {
+ stats(i).RxBytes = uint64(counter.Bytes)
+ stats(i).RxPackets = uint64(counter.Packets)
+ }
+ }
+ case "/if/tx-error":
+ {
+ for i, counter := range *v.reduceSimpleCounters(stat) {
+ stats(i).TxErrors = uint64(counter)
+ }
+ }
+ case "/if/rx-error":
+ {
+ for i, counter := range *v.reduceSimpleCounters(stat) {
+ stats(i).RxErrors = uint64(counter)
+ }
+ }
+ case "/if/drops":
+ {
+ for i, counter := range *v.reduceSimpleCounters(stat) {
+ stats(i).Drops = uint64(counter)
+ }
+ }
+ case "/if/punt":
+ {
+ for i, counter := range *v.reduceSimpleCounters(stat) {
+ stats(i).Punts = uint64(counter)
+ }
+ }
+ }
+ }
+ return nil
+}
+
+//////////////////////////////////////
+
+func main() {
+ statsSocketPathPtr := flag.String("stats_socket_path", defaultStatsSocketPath, "Path to vpp stats socket")
+ shmPrefixPtr := flag.String("shm_prefix", defaultShmPrefix, "Shared memory prefix (advanced)")
+ flag.Parse()
+
+ vppConn := &vppConnector{statsSocketPath: *statsSocketPathPtr, shmPrefix: *shmPrefixPtr}
+ defer vppConn.disconnect()
+
+ if err := vppConn.connect(); err != nil {
+ log.Fatalln(err)
+ }
+
+ if err := vppConn.getVppVersion(); err != nil {
+ log.Fatalln(err)
+ }
+
+ if err := vppConn.getInterfaces(); err != nil {
+ log.Fatalln(err)
+ }
+
+ if err := vppConn.getStatsForAllInterfaces(); err != nil {
+ log.Fatalln(err)
+ }
+
+ jsonString, err := dumpToJSONString(vppConn)
+ if err != nil {
+ log.Fatalln(err)
+ }
+ fmt.Println(jsonString)
+}