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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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