diff options
Diffstat (limited to 'examples/simple-client/simple_client.go')
| -rw-r--r-- | examples/simple-client/simple_client.go | 78 |
1 files changed, 47 insertions, 31 deletions
diff --git a/examples/simple-client/simple_client.go b/examples/simple-client/simple_client.go index 6d96ca8..fe7c109 100644 --- a/examples/simple-client/simple_client.go +++ b/examples/simple-client/simple_client.go @@ -65,20 +65,22 @@ func main() { } defer ch.Close() + if err := ch.CheckCompatiblity(vpe.AllMessages()...); err != nil { + log.Fatal(err) + } + vppVersion(ch) if err := ch.CheckCompatiblity(interfaces.AllMessages()...); err != nil { log.Fatal(err) } - createLoopback(ch) - createLoopback(ch) + idx := createLoopback(ch) interfaceDump(ch) - addIPAddress(ch) - ipAddressDump(ch) - - interfaceNotifications(ch) + addIPAddress(ch, idx) + ipAddressDump(ch, idx) + interfaceNotifications(ch, idx) if len(Errors) > 0 { fmt.Printf("finished with %d errors\n", len(Errors)) @@ -109,11 +111,12 @@ func vppVersion(ch api.Channel) { fmt.Printf("reply: %+v\n", reply) fmt.Printf("VPP version: %q\n", cleanString(reply.Version)) - fmt.Println("ok") + fmt.Println("OK") + fmt.Println() } // createLoopback sends request to create loopback interface. -func createLoopback(ch api.Channel) { +func createLoopback(ch api.Channel) interfaces.InterfaceIndex { fmt.Println("Creating loopback interface") req := &interfaces.CreateLoopback{} @@ -121,48 +124,54 @@ func createLoopback(ch api.Channel) { if err := ch.SendRequest(req).ReceiveReply(reply); err != nil { logError(err, "creating loopback interface") - return + return 0 } fmt.Printf("reply: %+v\n", reply) - fmt.Printf("loopback interface index: %v\n", reply.SwIfIndex) + fmt.Printf("interface index: %v\n", reply.SwIfIndex) fmt.Println("OK") + fmt.Println() + + return reply.SwIfIndex } // interfaceDump shows an example of multipart request (multiple replies are expected). func interfaceDump(ch api.Channel) { fmt.Println("Dumping interfaces") + n := 0 reqCtx := ch.SendMultiRequest(&interfaces.SwInterfaceDump{}) for { msg := &interfaces.SwInterfaceDetails{} stop, err := reqCtx.ReceiveReply(msg) + if stop { + break + } if err != nil { logError(err, "dumping interfaces") return } - if stop { - break - } - fmt.Printf(" - interface: %+v\n", msg) + n++ + fmt.Printf(" - interface #%d: %+v\n", n, msg) } fmt.Println("OK") + fmt.Println() } // addIPAddress sends request to add IP address to interface. -func addIPAddress(ch api.Channel) { - fmt.Println("Adding IP address to interface") +func addIPAddress(ch api.Channel, index interfaces.InterfaceIndex) { + fmt.Printf("Adding IP address to interface to interface index %d\n", index) req := &interfaces.SwInterfaceAddDelAddress{ - SwIfIndex: 1, + SwIfIndex: index, IsAdd: true, Prefix: ip_types.AddressWithPrefix{ Address: interfaces.Address{ Af: ip_types.ADDRESS_IP4, - Un: ip_types.AddressUnionIP4(interfaces.IP4Address{10, 10, 0, 1}), + Un: ip_types.AddressUnionIP4(interfaces.IP4Address{10, 10, 0, uint8(index)}), }, - Len: 24, + Len: 32, }, } reply := &interfaces.SwInterfaceAddDelAddressReply{} @@ -174,13 +183,14 @@ func addIPAddress(ch api.Channel) { fmt.Printf("reply: %+v\n", reply) fmt.Println("OK") + fmt.Println() } -func ipAddressDump(ch api.Channel) { - fmt.Println("Dumping IP addresses") +func ipAddressDump(ch api.Channel, index interfaces.InterfaceIndex) { + fmt.Printf("Dumping IP addresses for interface index %d\n", index) req := &ip.IPAddressDump{ - SwIfIndex: 1, + SwIfIndex: index, } reqCtx := ch.SendMultiRequest(req) @@ -198,13 +208,14 @@ func ipAddressDump(ch api.Channel) { } fmt.Println("OK") + fmt.Println() } // interfaceNotifications shows the usage of notification API. Note that for notifications, // you are supposed to create your own Go channel with your preferred buffer size. If the channel's // buffer is full, the notifications will not be delivered into it. -func interfaceNotifications(ch api.Channel) { - fmt.Println("Subscribing to notificaiton events") +func interfaceNotifications(ch api.Channel, index interfaces.InterfaceIndex) { + fmt.Printf("Subscribing to notificaiton events for interface index %d\n", index) notifChan := make(chan api.Message, 100) @@ -225,27 +236,31 @@ func interfaceNotifications(ch api.Channel) { return } + // receive notifications + go func() { + for notif := range notifChan { + fmt.Printf("incoming event: %+v\n", notif.(*interfaces.SwInterfaceEvent)) + } + }() + // generate some events in VPP err = ch.SendRequest(&interfaces.SwInterfaceSetFlags{ - SwIfIndex: 1, + SwIfIndex: index, + Flags: interface_types.IF_STATUS_API_FLAG_ADMIN_UP, }).ReceiveReply(&interfaces.SwInterfaceSetFlagsReply{}) if err != nil { logError(err, "setting interface flags") return } err = ch.SendRequest(&interfaces.SwInterfaceSetFlags{ - SwIfIndex: 1, - Flags: interface_types.IF_STATUS_API_FLAG_ADMIN_UP, + SwIfIndex: index, + Flags: 0, }).ReceiveReply(&interfaces.SwInterfaceSetFlagsReply{}) if err != nil { logError(err, "setting interface flags") return } - // receive one notification - notif := (<-notifChan).(*interfaces.SwInterfaceEvent) - fmt.Printf("incoming event: %+v\n", notif) - // disable interface events in VPP err = ch.SendRequest(&interfaces.WantInterfaceEvents{ PID: uint32(os.Getpid()), @@ -263,6 +278,7 @@ func interfaceNotifications(ch api.Channel) { return } + fmt.Println("OK") fmt.Println() } |