2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
3 Copyright (C) 2016-2019 Sergey Matveev <stargrave@stargrave.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, version 3 of the License.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
33 "github.com/davecgh/go-xdr/xdr2"
34 "github.com/flynn/noise"
38 MaxSPSize = 1<<16 - 256
44 MagicNNCPLv1 [8]byte = [8]byte{'N', 'N', 'C', 'P', 'S', 0, 0, 1}
50 SPHaltMarshalized []byte
52 NoiseCipherSuite noise.CipherSuite = noise.NewCipherSuite(
54 noise.CipherChaChaPoly,
58 spWorkersGroup sync.WaitGroup
64 SPTypeInfo SPType = iota
65 SPTypeFreq SPType = iota
66 SPTypeFile SPType = iota
67 SPTypeDone SPType = iota
68 SPTypeHalt SPType = iota
101 type FreqWithNice struct {
106 type ConnDeadlined interface {
108 SetReadDeadline(t time.Time) error
109 SetWriteDeadline(t time.Time) error
114 spHead := SPHead{Type: SPTypeHalt}
115 if _, err := xdr.Marshal(&buf, spHead); err != nil {
118 copy(SPHaltMarshalized, buf.Bytes())
119 SPHeadOverhead = buf.Len()
122 spInfo := SPInfo{Nice: 123, Size: 123, Hash: new([32]byte)}
123 if _, err := xdr.Marshal(&buf, spInfo); err != nil {
126 SPInfoOverhead = buf.Len()
129 spFreq := SPFreq{Hash: new([32]byte), Offset: 123}
130 if _, err := xdr.Marshal(&buf, spFreq); err != nil {
133 SPFreqOverhead = buf.Len()
136 spFile := SPFile{Hash: new([32]byte), Offset: 123}
137 if _, err := xdr.Marshal(&buf, spFile); err != nil {
140 SPFileOverhead = buf.Len()
143 func MarshalSP(typ SPType, sp interface{}) []byte {
146 if _, err = xdr.Marshal(&buf, SPHead{typ}); err != nil {
149 if _, err = xdr.Marshal(&buf, sp); err != nil {
155 func payloadsSplit(payloads [][]byte) [][]byte {
156 var outbounds [][]byte
157 outbound := make([]byte, 0, MaxSPSize)
158 for i, payload := range payloads {
159 outbound = append(outbound, payload...)
160 if i+1 < len(payloads) && len(outbound)+len(payloads[i+1]) > MaxSPSize {
161 outbounds = append(outbounds, outbound)
162 outbound = make([]byte, 0, MaxSPSize)
165 if len(outbound) > 0 {
166 outbounds = append(outbounds, outbound)
171 type SPState struct {
177 hs *noise.HandshakeState
178 csOur *noise.CipherState
179 csTheir *noise.CipherState
181 infosTheir map[[32]byte]*SPInfo
182 infosOurSeen map[[32]byte]uint8
183 queueTheir []*FreqWithNice
190 Duration time.Duration
200 onlyPkts map[[32]byte]bool
204 func (state *SPState) NotAlive() bool {
209 if state.maxOnlineTime > 0 && state.started.Add(time.Duration(state.maxOnlineTime)*time.Second).Before(now) {
212 return uint(now.Sub(state.RxLastSeen).Seconds()) >= state.onlineDeadline &&
213 uint(now.Sub(state.TxLastSeen).Seconds()) >= state.onlineDeadline
216 func (state *SPState) dirUnlock() {
217 state.Ctx.UnlockDir(state.rxLock)
218 state.Ctx.UnlockDir(state.txLock)
221 func (state *SPState) WriteSP(dst io.Writer, payload []byte) error {
222 n, err := xdr.Marshal(dst, SPRaw{Magic: MagicNNCPLv1, Payload: payload})
224 state.TxLastSeen = time.Now()
225 state.TxBytes += int64(n)
230 func (state *SPState) ReadSP(src io.Reader) ([]byte, error) {
232 n, err := xdr.UnmarshalLimited(src, &sp, 1<<17)
236 state.RxLastSeen = time.Now()
237 state.RxBytes += int64(n)
238 if sp.Magic != MagicNNCPLv1 {
241 return sp.Payload, nil
244 func (ctx *Ctx) infosOur(nodeId *NodeId, nice uint8, seen *map[[32]byte]uint8) [][]byte {
247 for job := range ctx.Jobs(nodeId, TTx) {
249 if job.PktEnc.Nice > nice {
252 if _, known := (*seen)[*job.HshValue]; known {
255 totalSize += job.Size
256 infos = append(infos, &SPInfo{
257 Nice: job.PktEnc.Nice,
258 Size: uint64(job.Size),
261 (*seen)[*job.HshValue] = job.PktEnc.Nice
263 sort.Sort(ByNice(infos))
264 var payloads [][]byte
265 for _, info := range infos {
266 payloads = append(payloads, MarshalSP(SPTypeInfo, info))
267 ctx.LogD("sp-info-our", SDS{
269 "name": ToBase32(info.Hash[:]),
270 "size": strconv.FormatInt(int64(info.Size), 10),
274 ctx.LogI("sp-infos", SDS{
277 "pkts": strconv.Itoa(len(payloads)),
278 "size": strconv.FormatInt(totalSize, 10),
281 return payloadsSplit(payloads)
284 func (state *SPState) StartI(conn ConnDeadlined) error {
285 nodeId := state.Node.Id
286 err := state.Ctx.ensureRxDir(nodeId)
291 if !state.listOnly && (state.xxOnly == "" || state.xxOnly == TRx) {
292 rxLock, err = state.Ctx.LockDir(nodeId, TRx)
298 if !state.listOnly && (state.xxOnly == "" || state.xxOnly == TTx) {
299 txLock, err = state.Ctx.LockDir(nodeId, TTx)
304 started := time.Now()
305 conf := noise.Config{
306 CipherSuite: NoiseCipherSuite,
307 Pattern: noise.HandshakeIK,
309 StaticKeypair: noise.DHKey{
310 Private: state.Ctx.Self.NoisePrv[:],
311 Public: state.Ctx.Self.NoisePub[:],
313 PeerStatic: state.Node.NoisePub[:],
315 hs, err := noise.NewHandshakeState(conf)
320 state.payloads = make(chan []byte)
321 state.infosTheir = make(map[[32]byte]*SPInfo)
322 state.infosOurSeen = make(map[[32]byte]uint8)
323 state.started = started
324 state.rxLock = rxLock
325 state.txLock = txLock
327 var infosPayloads [][]byte
328 if !state.listOnly && (state.xxOnly == "" || state.xxOnly == TTx) {
329 infosPayloads = state.Ctx.infosOur(nodeId, state.Nice, &state.infosOurSeen)
331 var firstPayload []byte
332 if len(infosPayloads) > 0 {
333 firstPayload = infosPayloads[0]
335 // Pad first payload, to hide actual number of existing files
336 for i := 0; i < (MaxSPSize-len(firstPayload))/SPHeadOverhead; i++ {
337 firstPayload = append(firstPayload, SPHaltMarshalized...)
342 buf, _, _, err = state.hs.WriteMessage(nil, firstPayload)
347 sds := SDS{"node": nodeId, "nice": strconv.Itoa(int(state.Nice))}
348 state.Ctx.LogD("sp-start", sds, "sending first message")
349 conn.SetWriteDeadline(time.Now().Add(DefaultDeadline * time.Second))
350 if err = state.WriteSP(conn, buf); err != nil {
351 state.Ctx.LogE("sp-start", SdsAdd(sds, SDS{"err": err}), "")
355 state.Ctx.LogD("sp-start", sds, "waiting for first message")
356 conn.SetReadDeadline(time.Now().Add(DefaultDeadline * time.Second))
357 if buf, err = state.ReadSP(conn); err != nil {
358 state.Ctx.LogE("sp-start", SdsAdd(sds, SDS{"err": err}), "")
362 payload, state.csOur, state.csTheir, err = state.hs.ReadMessage(nil, buf)
364 state.Ctx.LogE("sp-start", SdsAdd(sds, SDS{"err": err}), "")
368 state.Ctx.LogD("sp-start", sds, "starting workers")
369 err = state.StartWorkers(conn, infosPayloads, payload)
371 state.Ctx.LogE("sp-start", SdsAdd(sds, SDS{"err": err}), "")
378 func (state *SPState) StartR(conn ConnDeadlined) error {
379 started := time.Now()
380 conf := noise.Config{
381 CipherSuite: NoiseCipherSuite,
382 Pattern: noise.HandshakeIK,
384 StaticKeypair: noise.DHKey{
385 Private: state.Ctx.Self.NoisePrv[:],
386 Public: state.Ctx.Self.NoisePub[:],
389 hs, err := noise.NewHandshakeState(conf)
395 state.payloads = make(chan []byte)
396 state.infosOurSeen = make(map[[32]byte]uint8)
397 state.infosTheir = make(map[[32]byte]*SPInfo)
398 state.started = started
399 state.xxOnly = xxOnly
404 SDS{"nice": strconv.Itoa(int(state.Nice))},
405 "waiting for first message",
407 conn.SetReadDeadline(time.Now().Add(DefaultDeadline * time.Second))
408 if buf, err = state.ReadSP(conn); err != nil {
409 state.Ctx.LogE("sp-start", SDS{"err": err}, "")
412 if payload, _, _, err = state.hs.ReadMessage(nil, buf); err != nil {
413 state.Ctx.LogE("sp-start", SDS{"err": err}, "")
418 for _, node = range state.Ctx.Neigh {
419 if subtle.ConstantTimeCompare(state.hs.PeerStatic(), node.NoisePub[:]) == 1 {
424 peerId := ToBase32(state.hs.PeerStatic())
425 state.Ctx.LogE("sp-start", SDS{"peer": peerId}, "unknown")
426 return errors.New("Unknown peer: " + peerId)
429 state.rxRate = node.RxRate
430 state.txRate = node.TxRate
431 state.onlineDeadline = node.OnlineDeadline
432 state.maxOnlineTime = node.MaxOnlineTime
433 sds := SDS{"node": node.Id, "nice": strconv.Itoa(int(state.Nice))}
435 if state.Ctx.ensureRxDir(node.Id); err != nil {
439 if xxOnly == "" || xxOnly == TRx {
440 rxLock, err = state.Ctx.LockDir(node.Id, TRx)
445 state.rxLock = rxLock
447 if xxOnly == "" || xxOnly == TTx {
448 txLock, err = state.Ctx.LockDir(node.Id, TTx)
453 state.txLock = txLock
455 var infosPayloads [][]byte
456 if xxOnly == "" || xxOnly == TTx {
457 infosPayloads = state.Ctx.infosOur(node.Id, state.Nice, &state.infosOurSeen)
459 var firstPayload []byte
460 if len(infosPayloads) > 0 {
461 firstPayload = infosPayloads[0]
463 // Pad first payload, to hide actual number of existing files
464 for i := 0; i < (MaxSPSize-len(firstPayload))/SPHeadOverhead; i++ {
465 firstPayload = append(firstPayload, SPHaltMarshalized...)
468 state.Ctx.LogD("sp-start", sds, "sending first message")
469 buf, state.csTheir, state.csOur, err = state.hs.WriteMessage(nil, firstPayload)
474 conn.SetWriteDeadline(time.Now().Add(DefaultDeadline * time.Second))
475 if err = state.WriteSP(conn, buf); err != nil {
476 state.Ctx.LogE("sp-start", SdsAdd(sds, SDS{"err": err}), "")
480 state.Ctx.LogD("sp-start", sds, "starting workers")
481 err = state.StartWorkers(conn, infosPayloads, payload)
489 func (state *SPState) StartWorkers(
491 infosPayloads [][]byte,
492 payload []byte) error {
493 sds := SDS{"node": state.Node.Id, "nice": strconv.Itoa(int(state.Nice))}
494 if len(infosPayloads) > 1 {
496 for _, payload := range infosPayloads[1:] {
499 SdsAdd(sds, SDS{"size": strconv.Itoa(len(payload))}),
500 "queuing remaining payload",
502 state.payloads <- payload
508 SdsAdd(sds, SDS{"size": strconv.Itoa(len(payload))}),
509 "processing first payload",
511 replies, err := state.ProcessSP(payload)
513 state.Ctx.LogE("sp-work", SdsAdd(sds, SDS{"err": err}), "")
518 for _, reply := range replies {
521 SdsAdd(sds, SDS{"size": strconv.Itoa(len(reply))}),
524 state.payloads <- reply
528 if !state.listOnly && (state.xxOnly == "" || state.xxOnly == TTx) {
530 for range time.Tick(time.Second) {
531 if state.NotAlive() {
534 for _, payload := range state.Ctx.infosOur(
541 SdsAdd(sds, SDS{"size": strconv.Itoa(len(payload))}),
544 state.payloads <- payload
557 if state.NotAlive() {
562 case payload = <-state.payloads:
565 SdsAdd(sds, SDS{"size": strconv.Itoa(len(payload))}),
572 if len(state.queueTheir) == 0 {
573 state.Ctx.LogD("sp-xmit", sds, "file queue is empty")
575 time.Sleep(100 * time.Millisecond)
578 freq := state.queueTheir[0].freq
581 if state.txRate > 0 {
582 time.Sleep(time.Second / time.Duration(state.txRate))
585 sdsp := SdsAdd(sds, SDS{
587 "hash": ToBase32(freq.Hash[:]),
588 "size": strconv.FormatInt(int64(freq.Offset), 10),
590 state.Ctx.LogD("sp-file", sdsp, "queueing")
591 fd, err := os.Open(filepath.Join(
593 state.Node.Id.String(),
595 ToBase32(freq.Hash[:]),
598 state.Ctx.LogE("sp-file", SdsAdd(sdsp, SDS{"err": err}), "")
603 state.Ctx.LogE("sp-file", SdsAdd(sdsp, SDS{"err": err}), "")
606 fullSize := uint64(fi.Size())
608 if freq.Offset < fullSize {
609 state.Ctx.LogD("sp-file", sdsp, "seeking")
610 if _, err = fd.Seek(int64(freq.Offset), io.SeekStart); err != nil {
611 state.Ctx.LogE("sp-file", SdsAdd(sdsp, SDS{"err": err}), "")
614 buf = make([]byte, MaxSPSize-SPHeadOverhead-SPFileOverhead)
615 n, err := fd.Read(buf)
617 state.Ctx.LogE("sp-file", SdsAdd(sdsp, SDS{"err": err}), "")
623 SdsAdd(sdsp, SDS{"size": strconv.Itoa(n)}),
628 payload = MarshalSP(SPTypeFile, SPFile{
633 ourSize := freq.Offset + uint64(len(buf))
634 sdsp["size"] = strconv.FormatInt(int64(ourSize), 10)
635 sdsp["fullsize"] = strconv.FormatInt(int64(fullSize), 10)
636 state.Ctx.LogP("sp-file", sdsp, "")
638 if len(state.queueTheir) > 0 && *state.queueTheir[0].freq.Hash == *freq.Hash {
639 if ourSize == fullSize {
640 state.Ctx.LogD("sp-file", sdsp, "finished")
641 if len(state.queueTheir) > 1 {
642 state.queueTheir = state.queueTheir[1:]
644 state.queueTheir = state.queueTheir[:0]
647 state.queueTheir[0].freq.Offset += uint64(len(buf))
650 state.Ctx.LogD("sp-file", sdsp, "queue disappeared")
656 SdsAdd(sds, SDS{"size": strconv.Itoa(len(payload))}),
659 conn.SetWriteDeadline(time.Now().Add(DefaultDeadline * time.Second))
660 if err := state.WriteSP(conn, state.csOur.Encrypt(nil, nil, payload)); err != nil {
661 state.Ctx.LogE("sp-xmit", SdsAdd(sds, SDS{"err": err}), "")
674 if state.NotAlive() {
677 state.Ctx.LogD("sp-recv", sds, "waiting for payload")
678 conn.SetReadDeadline(time.Now().Add(DefaultDeadline * time.Second))
679 payload, err := state.ReadSP(conn)
681 unmarshalErr := err.(*xdr.UnmarshalError)
682 netErr, ok := unmarshalErr.Err.(net.Error)
683 if ok && netErr.Timeout() {
686 if unmarshalErr.ErrorCode == xdr.ErrIO {
689 state.Ctx.LogE("sp-recv", SdsAdd(sds, SDS{"err": err}), "")
694 SdsAdd(sds, SDS{"size": strconv.Itoa(len(payload))}),
697 payload, err = state.csTheir.Decrypt(nil, nil, payload)
699 state.Ctx.LogE("sp-recv", SdsAdd(sds, SDS{"err": err}), "")
704 SdsAdd(sds, SDS{"size": strconv.Itoa(len(payload))}),
707 replies, err := state.ProcessSP(payload)
709 state.Ctx.LogE("sp-recv", SdsAdd(sds, SDS{"err": err}), "")
713 for _, reply := range replies {
716 SdsAdd(sds, SDS{"size": strconv.Itoa(len(reply))}),
719 state.payloads <- reply
722 if state.rxRate > 0 {
723 time.Sleep(time.Second / time.Duration(state.rxRate))
731 func (state *SPState) Wait() {
734 state.Duration = time.Now().Sub(state.started)
735 state.RxSpeed = state.RxBytes
736 state.TxSpeed = state.TxBytes
737 rxDuration := int64(state.RxLastSeen.Sub(state.started).Seconds())
738 txDuration := int64(state.TxLastSeen.Sub(state.started).Seconds())
740 state.RxSpeed = state.RxBytes / rxDuration
743 state.TxSpeed = state.TxBytes / txDuration
747 func (state *SPState) ProcessSP(payload []byte) ([][]byte, error) {
748 sds := SDS{"node": state.Node.Id, "nice": strconv.Itoa(int(state.Nice))}
749 r := bytes.NewReader(payload)
754 state.Ctx.LogD("sp-process", sds, "unmarshaling header")
756 if _, err = xdr.Unmarshal(r, &head); err != nil {
757 state.Ctx.LogE("sp-process", SdsAdd(sds, SDS{"err": err}), "")
763 sdsp := SdsAdd(sds, SDS{"type": "info"})
764 state.Ctx.LogD("sp-process", sdsp, "unmarshaling packet")
766 if _, err = xdr.Unmarshal(r, &info); err != nil {
767 state.Ctx.LogE("sp-process", SdsAdd(sdsp, SDS{"err": err}), "")
770 sdsp = SdsAdd(sds, SDS{
771 "hash": ToBase32(info.Hash[:]),
772 "size": strconv.FormatInt(int64(info.Size), 10),
773 "nice": strconv.Itoa(int(info.Nice)),
775 if !state.listOnly && info.Nice > state.Nice {
776 state.Ctx.LogD("sp-process", sdsp, "too nice")
779 state.Ctx.LogD("sp-process", sdsp, "received")
780 if !state.listOnly && state.xxOnly == TTx {
784 state.infosTheir[*info.Hash] = &info
786 state.Ctx.LogD("sp-process", sdsp, "stating part")
787 pktPath := filepath.Join(
789 state.Node.Id.String(),
791 ToBase32(info.Hash[:]),
793 if _, err = os.Stat(pktPath); err == nil {
794 state.Ctx.LogI("sp-info", sdsp, "already done")
796 replies = append(replies, MarshalSP(SPTypeDone, SPDone{info.Hash}))
800 if _, err = os.Stat(pktPath + SeenSuffix); err == nil {
801 state.Ctx.LogI("sp-info", sdsp, "already seen")
803 replies = append(replies, MarshalSP(SPTypeDone, SPDone{info.Hash}))
807 fi, err := os.Stat(pktPath + PartSuffix)
812 if !state.Ctx.IsEnoughSpace(int64(info.Size) - offset) {
813 state.Ctx.LogI("sp-info", sdsp, "not enough space")
818 SdsAdd(sdsp, SDS{"offset": strconv.FormatInt(offset, 10)}),
821 if !state.listOnly && (state.onlyPkts == nil || state.onlyPkts[*info.Hash]) {
822 replies = append(replies, MarshalSP(
824 SPFreq{info.Hash, uint64(offset)},
828 sdsp := SdsAdd(sds, SDS{"type": "file"})
829 state.Ctx.LogD("sp-process", sdsp, "unmarshaling packet")
831 if _, err = xdr.Unmarshal(r, &file); err != nil {
832 state.Ctx.LogE("sp-process", SdsAdd(sds, SDS{
838 sdsp["xx"] = string(TRx)
839 sdsp["hash"] = ToBase32(file.Hash[:])
840 sdsp["size"] = strconv.Itoa(len(file.Payload))
841 filePath := filepath.Join(
843 state.Node.Id.String(),
845 ToBase32(file.Hash[:]),
847 state.Ctx.LogD("sp-file", sdsp, "opening part")
848 fd, err := os.OpenFile(
850 os.O_RDWR|os.O_CREATE,
854 state.Ctx.LogE("sp-file", SdsAdd(sdsp, SDS{"err": err}), "")
859 SdsAdd(sdsp, SDS{"offset": strconv.FormatInt(int64(file.Offset), 10)}),
862 if _, err = fd.Seek(int64(file.Offset), io.SeekStart); err != nil {
863 state.Ctx.LogE("sp-file", SdsAdd(sdsp, SDS{"err": err}), "")
867 state.Ctx.LogD("sp-file", sdsp, "writing")
868 _, err = fd.Write(file.Payload)
870 state.Ctx.LogE("sp-file", SdsAdd(sdsp, SDS{"err": err}), "")
874 ourSize := uint64(file.Offset) + uint64(len(file.Payload))
876 sdsp["fullsize"] = strconv.FormatInt(int64(state.infosTheir[*file.Hash].Size), 10)
877 sdsp["size"] = strconv.FormatInt(int64(ourSize), 10)
878 state.Ctx.LogP("sp-file", sdsp, "")
879 if state.infosTheir[*file.Hash].Size != ourSize {
885 spWorkersGroup.Wait()
886 spWorkersGroup.Add(1)
888 if err := fd.Sync(); err != nil {
889 state.Ctx.LogE("sp-file", SdsAdd(sdsp, SDS{"err": err}), "sync")
894 defer state.wg.Done()
895 fd.Seek(0, io.SeekStart)
896 state.Ctx.LogD("sp-file", sdsp, "checking")
897 gut, err := Check(fd, file.Hash[:])
899 if err != nil || !gut {
900 state.Ctx.LogE("sp-file", sdsp, "checksum mismatch")
903 state.Ctx.LogI("sp-done", SdsAdd(sdsp, SDS{"xx": string(TRx)}), "")
904 os.Rename(filePath+PartSuffix, filePath)
906 delete(state.infosTheir, *file.Hash)
908 spWorkersGroup.Done()
910 state.payloads <- MarshalSP(SPTypeDone, SPDone{file.Hash})
914 sdsp := SdsAdd(sds, SDS{"type": "done"})
915 state.Ctx.LogD("sp-process", sdsp, "unmarshaling packet")
917 if _, err = xdr.Unmarshal(r, &done); err != nil {
918 state.Ctx.LogE("sp-process", SdsAdd(sds, SDS{
924 sdsp["hash"] = ToBase32(done.Hash[:])
925 state.Ctx.LogD("sp-done", sdsp, "removing")
926 err := os.Remove(filepath.Join(
928 state.Node.Id.String(),
930 ToBase32(done.Hash[:]),
932 sdsp["xx"] = string(TTx)
934 state.Ctx.LogI("sp-done", sdsp, "")
936 state.Ctx.LogE("sp-done", sdsp, "")
939 sdsp := SdsAdd(sds, SDS{"type": "freq"})
940 state.Ctx.LogD("sp-process", sdsp, "unmarshaling packet")
942 if _, err = xdr.Unmarshal(r, &freq); err != nil {
943 state.Ctx.LogE("sp-process", SdsAdd(sdsp, SDS{"err": err}), "")
946 sdsp["hash"] = ToBase32(freq.Hash[:])
947 sdsp["offset"] = strconv.FormatInt(int64(freq.Offset), 10)
948 state.Ctx.LogD("sp-process", sdsp, "queueing")
949 nice, exists := state.infosOurSeen[*freq.Hash]
951 if state.onlyPkts == nil || !state.onlyPkts[*freq.Hash] {
954 var freqWithNice *FreqWithNice
955 for insertIdx, freqWithNice = range state.queueTheir {
956 if freqWithNice.nice > nice {
960 state.queueTheir = append(state.queueTheir, nil)
961 copy(state.queueTheir[insertIdx+1:], state.queueTheir[insertIdx:])
962 state.queueTheir[insertIdx] = &FreqWithNice{&freq, nice}
965 state.Ctx.LogD("sp-process", sdsp, "skipping")
968 state.Ctx.LogD("sp-process", sdsp, "unknown")
971 state.Ctx.LogD("sp-process", SdsAdd(sds, SDS{"type": "halt"}), "")
973 state.queueTheir = nil
978 SdsAdd(sds, SDS{"type": head.Type}),
981 return nil, BadPktType
988 for _, info := range state.infosTheir {
993 state.Ctx.LogI("sp-infos", SDS{
995 "node": state.Node.Id,
996 "pkts": strconv.Itoa(pkts),
997 "size": strconv.FormatInt(int64(size), 10),
1000 return payloadsSplit(replies), nil