How to use handshake method of ipc Package

Best Syzkaller code snippet using ipc.handshake

uapi.go

Source:uapi.go

...83			// Do the work in an anonymous function so that we can use defer.84			func() {85				peer.RLock()86				defer peer.RUnlock()87				keyf("public_key", (*[32]byte)(&peer.handshake.remoteStatic))88				keyf("preshared_key", (*[32]byte)(&peer.handshake.presharedKey))89				sendf("protocol_version=1")90				if peer.endpoint != nil {91					sendf("endpoint=%s", peer.endpoint.DstToString())92				}93				/* Custom change begin */94				sendf("handshakeAttempts=%d", peer.timers.actualHandshakeAttempts)95				keyf("chainKey", (*[32]byte)(&peer.handshake.sharedUniqueSecret))96				//sendf("chainKey=%s", (*[32]byte)(&peer.handshake.remoteEphemeral))97				//device.log.Verbosef("%v - chainKey: %s", peer, string(peer.handshake.chainKey[:]))98				//device.log.Verbosef("%v - chainKey: %s", peer, string(peer.handshake.remoteEphemeral[:]))99				/* Custom change end */100				nano := atomic.LoadInt64(&peer.stats.lastHandshakeNano)101				secs := nano / time.Second.Nanoseconds()102				nano %= time.Second.Nanoseconds()103				sendf("last_handshake_time_sec=%d", secs)104				sendf("last_handshake_time_nsec=%d", nano)105				sendf("tx_bytes=%d", atomic.LoadUint64(&peer.stats.txBytes))106				sendf("rx_bytes=%d", atomic.LoadUint64(&peer.stats.rxBytes))107				sendf("persistent_keepalive_interval=%d", atomic.LoadUint32(&peer.persistentKeepaliveInterval))108				device.allowedips.EntriesForPeer(peer, func(prefix netip.Prefix) bool {109					sendf("allowed_ip=%s", prefix.String())110					return true111				})112			}()113		}114	}()115	// send lines (does not require resource locks)116	if _, err := w.Write(buf.Bytes()); err != nil {117		return ipcErrorf(ipc.IpcErrorIO, "failed to write output: %w", err)118	}119	return nil120}121// IpcSetOperation implements the WireGuard configuration protocol "set" operation.122// See https://www.wireguard.com/xplatform/#configuration-protocol for details.123func (device *Device) IpcSetOperation(r io.Reader) (err error) {124	device.ipcMutex.Lock()125	defer device.ipcMutex.Unlock()126	defer func() {127		if err != nil {128			device.log.Errorf("%v", err)129		}130	}()131	peer := new(ipcSetPeer)132	deviceConfig := true133	scanner := bufio.NewScanner(r)134	for scanner.Scan() {135		line := scanner.Text()136		if line == "" {137			// Blank line means terminate operation.138			peer.handlePostConfig()139			return nil140		}141		parts := strings.Split(line, "=")142		if len(parts) != 2 {143			return ipcErrorf(ipc.IpcErrorProtocol, "failed to parse line %q, found %d =-separated parts, want 2", line, len(parts))144		}145		key := parts[0]146		value := parts[1]147		if key == "public_key" {148			if deviceConfig {149				deviceConfig = false150			}151			peer.handlePostConfig()152			// Load/create the peer we are now configuring.153			err := device.handlePublicKeyLine(peer, value)154			if err != nil {155				return err156			}157			continue158		}159		var err error160		if deviceConfig {161			err = device.handleDeviceLine(key, value)162		} else {163			err = device.handlePeerLine(peer, key, value)164		}165		if err != nil {166			return err167		}168	}169	peer.handlePostConfig()170	if err := scanner.Err(); err != nil {171		return ipcErrorf(ipc.IpcErrorIO, "failed to read input: %w", err)172	}173	return nil174}175func (device *Device) handleDeviceLine(key, value string) error {176	switch key {177	case "private_key":178		var sk NoisePrivateKey179		err := sk.FromMaybeZeroHex(value)180		if err != nil {181			return ipcErrorf(ipc.IpcErrorInvalid, "failed to set private_key: %w", err)182		}183		device.log.Verbosef("UAPI: Updating private key")184		device.SetPrivateKey(sk)185	case "listen_port":186		port, err := strconv.ParseUint(value, 10, 16)187		if err != nil {188			return ipcErrorf(ipc.IpcErrorInvalid, "failed to parse listen_port: %w", err)189		}190		// update port and rebind191		device.log.Verbosef("UAPI: Updating listen port")192		device.net.Lock()193		device.net.port = uint16(port)194		device.net.Unlock()195		if err := device.BindUpdate(); err != nil {196			return ipcErrorf(ipc.IpcErrorPortInUse, "failed to set listen_port: %w", err)197		}198	case "fwmark":199		mark, err := strconv.ParseUint(value, 10, 32)200		if err != nil {201			return ipcErrorf(ipc.IpcErrorInvalid, "invalid fwmark: %w", err)202		}203		device.log.Verbosef("UAPI: Updating fwmark")204		if err := device.BindSetMark(uint32(mark)); err != nil {205			return ipcErrorf(ipc.IpcErrorPortInUse, "failed to update fwmark: %w", err)206		}207	case "replace_peers":208		if value != "true" {209			return ipcErrorf(ipc.IpcErrorInvalid, "failed to set replace_peers, invalid value: %v", value)210		}211		device.log.Verbosef("UAPI: Removing all peers")212		device.RemoveAllPeers()213	default:214		return ipcErrorf(ipc.IpcErrorInvalid, "invalid UAPI device key: %v", key)215	}216	return nil217}218// An ipcSetPeer is the current state of an IPC set operation on a peer.219type ipcSetPeer struct {220	*Peer        // Peer is the current peer being operated on221	dummy   bool // dummy reports whether this peer is a temporary, placeholder peer222	created bool // new reports whether this is a newly created peer223	pkaOn   bool // pkaOn reports whether the peer had the persistent keepalive turn on224}225func (peer *ipcSetPeer) handlePostConfig() {226	if peer.Peer == nil || peer.dummy {227		return228	}229	if peer.created {230		peer.disableRoaming = peer.device.net.brokenRoaming && peer.endpoint != nil231	}232	if peer.device.isUp() {233		peer.Start()234		if peer.pkaOn {235			peer.SendKeepalive()236		}237		peer.SendStagedPackets()238	}239}240func (device *Device) handlePublicKeyLine(peer *ipcSetPeer, value string) error {241	// Load/create the peer we are configuring.242	var publicKey NoisePublicKey243	err := publicKey.FromHex(value)244	if err != nil {245		return ipcErrorf(ipc.IpcErrorInvalid, "failed to get peer by public key: %w", err)246	}247	// Ignore peer with the same public key as this device.248	device.staticIdentity.RLock()249	peer.dummy = device.staticIdentity.publicKey.Equals(publicKey)250	device.staticIdentity.RUnlock()251	if peer.dummy {252		peer.Peer = &Peer{}253	} else {254		peer.Peer = device.LookupPeer(publicKey)255	}256	peer.created = peer.Peer == nil257	if peer.created {258		peer.Peer, err = device.NewPeer(publicKey)259		if err != nil {260			return ipcErrorf(ipc.IpcErrorInvalid, "failed to create new peer: %w", err)261		}262		device.log.Verbosef("%v - UAPI: Created", peer.Peer)263	}264	return nil265}266func (device *Device) handlePeerLine(peer *ipcSetPeer, key, value string) error {267	switch key {268	case "update_only":269		// allow disabling of creation270		if value != "true" {271			return ipcErrorf(ipc.IpcErrorInvalid, "failed to set update only, invalid value: %v", value)272		}273		if peer.created && !peer.dummy {274			device.RemovePeer(peer.handshake.remoteStatic)275			peer.Peer = &Peer{}276			peer.dummy = true277		}278	case "remove":279		// remove currently selected peer from device280		if value != "true" {281			return ipcErrorf(ipc.IpcErrorInvalid, "failed to set remove, invalid value: %v", value)282		}283		if !peer.dummy {284			device.log.Verbosef("%v - UAPI: Removing", peer.Peer)285			device.RemovePeer(peer.handshake.remoteStatic)286		}287		peer.Peer = &Peer{}288		peer.dummy = true289	case "preshared_key":290		device.log.Verbosef("%v - UAPI: Updating preshared key", peer.Peer)291		peer.handshake.mutex.Lock()292		err := peer.handshake.presharedKey.FromHex(value)293		peer.handshake.mutex.Unlock()294		if err != nil {295			return ipcErrorf(ipc.IpcErrorInvalid, "failed to set preshared key: %w", err)296		}297	case "endpoint":298		device.log.Verbosef("%v - UAPI: Updating endpoint", peer.Peer)299		endpoint, err := device.net.bind.ParseEndpoint(value)300		if err != nil {301			return ipcErrorf(ipc.IpcErrorInvalid, "failed to set endpoint %v: %w", value, err)302		}303		peer.Lock()304		defer peer.Unlock()305		peer.endpoint = endpoint306	case "persistent_keepalive_interval":307		device.log.Verbosef("%v - UAPI: Updating persistent keepalive interval", peer.Peer)308		secs, err := strconv.ParseUint(value, 10, 16)309		if err != nil {310			return ipcErrorf(ipc.IpcErrorInvalid, "failed to set persistent keepalive interval: %w", err)311		}312		old := atomic.SwapUint32(&peer.persistentKeepaliveInterval, uint32(secs))313		// Send immediate keepalive if we're turning it on and before it wasn't on.314		peer.pkaOn = old == 0 && secs != 0315	case "replace_allowed_ips":316		device.log.Verbosef("%v - UAPI: Removing all allowedips", peer.Peer)317		if value != "true" {318			return ipcErrorf(ipc.IpcErrorInvalid, "failed to replace allowedips, invalid value: %v", value)319		}320		if peer.dummy {321			return nil322		}323		device.allowedips.RemoveByPeer(peer.Peer)324	case "allowed_ip":325		device.log.Verbosef("%v - UAPI: Adding allowedip", peer.Peer)326		prefix, err := netip.ParsePrefix(value)327		if err != nil {328			return ipcErrorf(ipc.IpcErrorInvalid, "failed to set allowed ip: %w", err)329		}330		if peer.dummy {331			return nil332		}333		device.allowedips.Insert(prefix, peer.Peer)334	case "protocol_version":335		if value != "1" {336			return ipcErrorf(ipc.IpcErrorInvalid, "invalid protocol version: %v", value)337		}338	default:339		return ipcErrorf(ipc.IpcErrorInvalid, "invalid UAPI peer key: %v", key)340	}341	return nil342}343func (device *Device) IpcGet() (string, error) {344	buf := new(strings.Builder)345	if err := device.IpcGetOperation(buf); err != nil {346		return "", err347	}348	return buf.String(), nil349}350func (device *Device) IpcSet(uapiConf string) error {351	return device.IpcSetOperation(strings.NewReader(uapiConf))352}353/* Custom change begin */354func (device *Device) IpcSetPSK(uapiConf string) error {355	return device.IpcSetPSKOperation(strings.NewReader(uapiConf))356}357func (device *Device) IpcSetPSKOperation(r io.Reader) (err error) {358	// Lock device359	device.ipcMutex.Lock()360	defer device.ipcMutex.Unlock()361	defer func() {362		if err != nil {363			device.log.Errorf("%v", err)364		}365	}()366	// Read config367	peer := new(ipcSetPeer)368	peer.Peer = &Peer{}369	scanner := bufio.NewScanner(r)370	for scanner.Scan() {371		line := scanner.Text()372		device.log.Verbosef("%v - UAPI: Updating preshared key", peer.Peer)373		if line == "" {374			// Blank line means terminate operation.375			peer.handlePostConfig()376			return nil377		}378		parts := strings.Split(line, "=")379		if len(parts) != 2 {380			return ipcErrorf(ipc.IpcErrorProtocol, "failed to parse line %q, found %d =-separated parts, want 2", line, len(parts))381		}382		key := parts[0]383		value := parts[1]384		// Get pk if line is public_key385		if key == "public_key" {386			var publicKey NoisePublicKey387			err := publicKey.FromHex(value)388			if err != nil {389				return ipcErrorf(ipc.IpcErrorInvalid, "failed to get peer by public key: %w", err)390			}391			peer.Peer = device.LookupPeer(publicKey)392		}393		// loadPSK if line is preshared_key394		if key == "preshared_key" {395			if peer == nil {396				return ipcErrorf(ipc.IpcErrorInvalid, "failed to find peer: %w", err)397			}398	        	peer.handshake.mutex.Lock()399		        err := peer.handshake.presharedKey.FromHex(value)400		        peer.handshake.mutex.Unlock()401        		if err != nil {402		   	     return ipcErrorf(ipc.IpcErrorInvalid, "failed to set preshared key: %w", err)403        		}404			peer.handlePostConfig()405		}406	}407	if err := scanner.Err(); err != nil {408		return ipcErrorf(ipc.IpcErrorIO, "failed to read input: %w", err)409	}410	return nil411}412/* Custom change end */413func (device *Device) IpcHandle(socket net.Conn) {414	defer socket.Close()...

handshake

Using AI Code Generation

1import (2func main() {3	ipc := ipc.Ipc{}4	ipc.Handshake()5	fmt.Println("Handshake completed")6}7import (8func main() {9	ipc := ipc.Ipc{}10	ipc.Handshake()11	fmt.Println("Handshake completed")12}13import (14func main() {15	ipc := ipc.Ipc{}16	ipc.Handshake()17	fmt.Println("Handshake completed")18}19import (20func main() {21	ipc := ipc.Ipc{}22	ipc.Handshake()23	fmt.Println("Handshake completed")24}25import (26func main() {27	ipc := ipc.Ipc{}28	ipc.Handshake()29	fmt.Println("Handshake completed")30}31import (32func main() {33	ipc := ipc.Ipc{}34	ipc.Handshake()35	fmt.Println("Handshake completed")36}37import (38func main() {39	ipc := ipc.Ipc{}40	ipc.Handshake()41	fmt.Println("Handshake completed")42}43import (44func main() {45	ipc := ipc.Ipc{}46	ipc.Handshake()47	fmt.Println("Handshake completed")48}49import (50func main() {51	ipc := ipc.Ipc{}52	ipc.Handshake()53	fmt.Println("Handshake completed")54}55import (

handshake

Using AI Code Generation

1import (2func main() {3	pipe, err := syscall.Mkfifo("/tmp/fifo", 0666)4	if err != nil {5		fmt.Println(err)6		os.Exit(1)7	}8	fmt.Println("Pipe created: ", pipe)9}10import (11func main() {12	f, err := os.OpenFile("/tmp/fifo", os.O_RDONLY, 0666)13	if err != nil {14		fmt.Println(err)15		os.Exit(1)16	}17	data, err := ioutil.ReadAll(f)18	if err != nil {19		fmt.Println(err)20		os.Exit(1)21	}22	fmt.Println("Data read from pipe: ", string(data))23}24import (25func main() {26	f, err := os.OpenFile("/tmp/fifo", os.O_WRONLY, 0666)27	if err != nil {28		fmt.Println(err)29		os.Exit(1)30	}31	_, err = f.Write([]byte("Hello, World!"))32	if err != nil {33		fmt.Println(err)34		os.Exit(1)35	}36}

handshake

Using AI Code Generation

1import (2func main() {3	var channel = make(chan string)4	go ipc.HandShake(channel)5	fmt.Println(<-channel)6	fmt.Println(<-channel)7}8import (9func main() {10	var channel = make(chan string)11	go ipc.HandShake(channel)12	fmt.Println(<-channel)13	fmt.Println(<-channel)14}15import (16func main() {17	var channel = make(chan string)18	go ipc.HandShake(channel)19	fmt.Println(<-channel)20	fmt.Println(<-channel)21}22import (23func main() {24	var channel = make(chan string)25	go ipc.HandShake(channel)26	fmt.Println(<-channel)27	fmt.Println(<-channel)28}29import (30func main() {31	var channel = make(chan string)32	go ipc.HandShake(channel)33	fmt.Println(<-channel)34	fmt.Println(<-channel)35}36import (37func main() {38	var channel = make(chan string)39	go ipc.HandShake(channel)40	fmt.Println(<-channel)41	fmt.Println(<-channel)42}43import (44func main() {45	var channel = make(chan string)46	go ipc.HandShake(channel)47	fmt.Println(<-channel)48	fmt.Println(<-channel)49}

handshake

Using AI Code Generation

1import (2func main() {3	ipc := IPC.NewIPC()4	ipc.SetChannelName("testChannel")5	ipc.SetTimeout(5 * time.Second)6	ipc.SetHandshakeMethod("handshake")7	ipc.SetHandshakeMessage("hello")8	ipc.SetHandshakeResponse("hello")9	ipc.SetHandshakeResponseTimeout(5 * time.Second)10	ipc.SetHandshakeResponseExpected(true)

handshake

Using AI Code Generation

1import (2func main() {3	r, w, err := os.Pipe()4	if err != nil {5		fmt.Println(err)6		os.Exit(1)7	}8	process, err := os.StartProcess("./1", []string{"1"}, &os.ProcAttr{9		Env:   os.Environ(),10		Files: []*os.File{r, w, w},11		Sys:   &syscall.SysProcAttr{},12	})13	if err != nil {14		fmt.Println(err)15		os.Exit(1)16	}17	w.Write([]byte("Hello from 2"))18	process.Wait()19}20import (21func main() {22	r, w, err := os.Pipe()23	if err != nil {24		fmt.Println(err)25		os.Exit(1)26	}27	process, err := os.StartProcess("./2", []string{"2"}, &os.ProcAttr{28		Env:   os.Environ(),29		Files: []*os.File{r, w, w},30		Sys:   &syscall.SysProcAttr{},31	})32	if err != nil {33		fmt.Println(err)34		os.Exit(1)35	}36	buf := make([]byte, 100)37	r.Read(buf)38	fmt.Println(string(buf))39	process.Wait()40}41import (42func main() {

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