func newClient() *cli.GoBGPClient {
target := net.JoinHostPort(globalOpts.Host, strconv.Itoa(globalOpts.Port))
client, err := cli.NewGoBGPClient(target)
if err != nil {
exitWithError(err)
}
return client
}
// printGoBGPPeers queries GoBGP and displays the local peers in table format.
func printGoBGPPeers(ipv string) {
client, err := gobgp.NewGoBGPClient("")
if err != nil {
fmt.Printf("Error creating gobgp client: %s\n", err)
os.Exit(1)
}
defer client.Close()
afi := bgp.AFI_IP
if ipv == "6" {
afi = bgp.AFI_IP6
}
fmt.Printf("\nIPv%s BGP status\n", ipv)
neighbors, err := client.ListNeighborByTransport(afi)
if err != nil {
fmt.Printf("Error retrieving neighbor info: %s\n", err)
os.Exit(1)
}
formatTimedelta := func(d int64) string {
u := uint64(d)
neg := d < 0
if neg {
u = -u
}
secs := u % 60
u /= 60
mins := u % 60
u /= 60
hours := u % 24
days := u / 24
if days == 0 {
return fmt.Sprintf("%02d:%02d:%02d", hours, mins, secs)
} else {
return fmt.Sprintf("%dd ", days) + fmt.Sprintf("%02d:%02d:%02d", hours, mins, secs)
}
}
now := time.Now()
peers := make([]bgpPeer, 0, len(neighbors))
for _, n := range neighbors {
ipString := n.Config.NeighborAddress
description := n.Config.Description
adminState := string(n.State.AdminState)
sessionState := strings.Title(string(n.State.SessionState))
timeStr := "never"
if n.Timers.State.Uptime != 0 {
t := int(n.Timers.State.Downtime)
if sessionState == "Established" {
t = int(n.Timers.State.Uptime)
}
timeStr = formatTimedelta(int64(now.Sub(time.Unix(int64(t), 0)).Seconds()))
}
sm := bgpPeerRegex.FindStringSubmatch(description)
if len(sm) != 3 {
log.Debugf("Not a valid line: peer name '%s' is not recognized", description)
continue
}
var ok bool
var typ string
if typ, ok = bgpTypeMap[sm[1]]; !ok {
log.Debugf("Not a valid line: peer type '%s' is not recognized", sm[1])
continue
}
peers = append(peers, bgpPeer{
PeerIP: ipString,
PeerType: typ,
State: adminState,
Since: timeStr,
BGPState: sessionState,
})
}
// If no peers were returned then just print a message.
if len(peers) == 0 {
fmt.Printf("No IPv%s peers found.\n", ipv)
return
}
// Finally, print the peers.
printPeers(peers)
}