2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
3 Copyright (C) 2016-2023 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/>.
18 // Call NNCP TCP daemon.
31 "go.cypherpunks.ru/nncp/v8"
35 fmt.Fprint(os.Stderr, "nncp-call -- call TCP daemon\n\n")
36 fmt.Fprintf(os.Stderr, "Usage: %s [options] NODE[:ADDR] [FORCEADDR]\n", os.Args[0])
37 fmt.Fprintln(os.Stderr, "Options:")
43 cfgPath = flag.String("cfg", nncp.DefaultCfgPath, "Path to configuration file")
44 ucspi = flag.Bool("ucspi", false, "Is it started as UCSPI-TCP client")
45 niceRaw = flag.String("nice", nncp.NicenessFmt(255), "Minimal required niceness")
46 rxOnly = flag.Bool("rx", false, "Only receive packets")
47 txOnly = flag.Bool("tx", false, "Only transmit packets")
48 listOnly = flag.Bool("list", false, "Only list remote packets")
49 noCK = flag.Bool("nock", false, "Do no checksum checking")
50 onlyPktsRaw = flag.String("pkts", "", "Recieve only that packets, comma separated")
51 mcdWait = flag.Uint("mcd-wait", 0, "Wait for MCD for specified number of seconds")
52 rxRate = flag.Int("rxrate", 0, "Maximal receive rate, pkts/sec")
53 txRate = flag.Int("txrate", 0, "Maximal transmit rate, pkts/sec")
54 spoolPath = flag.String("spool", "", "Override path to spool")
55 logPath = flag.String("log", "", "Override path to logfile")
56 quiet = flag.Bool("quiet", false, "Print only errors")
57 showPrgrs = flag.Bool("progress", false, "Force progress showing")
58 omitPrgrs = flag.Bool("noprogress", false, "Omit progress showing")
59 debug = flag.Bool("debug", false, "Print debug messages")
60 version = flag.Bool("version", false, "Print version information")
61 warranty = flag.Bool("warranty", false, "Print warranty information")
63 onlineDeadlineSec = flag.Uint("onlinedeadline", 0,
64 "Override onlinedeadline option")
65 maxOnlineTimeSec = flag.Uint("maxonlinetime", 0,
66 "Override maxonlinetime option")
68 autoToss = flag.Bool("autotoss", false,
69 "Toss after call is finished")
70 autoTossDoSeen = flag.Bool("autotoss-seen", false,
71 "Create seen/ files during tossing")
72 autoTossNoFile = flag.Bool("autotoss-nofile", false,
73 "Do not process \"file\" packets during tossing")
74 autoTossNoFreq = flag.Bool("autotoss-nofreq", false,
75 "Do not process \"freq\" packets during tossing")
76 autoTossNoExec = flag.Bool("autotoss-noexec", false,
77 "Do not process \"exec\" packets during tossing")
78 autoTossNoTrns = flag.Bool("autotoss-notrns", false,
79 "Do not process \"trns\" packets during tossing")
80 autoTossNoArea = flag.Bool("autotoss-noarea", false,
81 "Do not process \"area\" packets during tossing")
82 autoTossNoACK = flag.Bool("autotoss-noack", false,
83 "Do not process \"ack\" packets during tossing")
84 autoTossGenACK = flag.Bool("autotoss-gen-ack", false,
85 "Generate ACK packets")
87 log.SetFlags(log.Lshortfile)
91 fmt.Println(nncp.Warranty)
95 fmt.Println(nncp.VersionGet())
102 nice, err := nncp.NicenessParse(*niceRaw)
106 if *rxOnly && *txOnly {
107 log.Fatalln("-rx and -tx can not be set simultaneously")
110 ctx, err := nncp.CtxFromCmdline(
120 log.Fatalln("Error during initialization:", err)
123 log.Fatalln("Config lacks private keys")
126 splitted := strings.SplitN(flag.Arg(0), ":", 2)
127 node, err := ctx.FindNode(splitted[0])
129 log.Fatalln("Invalid NODE specified:", err)
131 if node.NoisePub == nil {
132 log.Fatalln("Node does not have online communication capability")
135 onlineDeadline := node.OnlineDeadline
136 if *onlineDeadlineSec != 0 {
137 onlineDeadline = time.Duration(*onlineDeadlineSec) * time.Second
139 maxOnlineTime := node.MaxOnlineTime
140 if *maxOnlineTimeSec != 0 {
141 maxOnlineTime = time.Duration(*maxOnlineTimeSec) * time.Second
144 var xxOnly nncp.TRxTx
153 addrs = append(addrs, nncp.UCSPITCPClient)
154 } else if flag.NArg() == 2 {
155 addrs = append(addrs, flag.Arg(1))
156 } else if len(splitted) == 2 {
157 addr, known := ctx.Neigh[*node.Id].Addrs[splitted[1]]
159 log.Fatalln("Unknown ADDR specified")
161 addrs = append(addrs, addr)
163 for _, addr := range ctx.Neigh[*node.Id].Addrs {
164 addrs = append(addrs, addr)
169 ifis, err := net.Interfaces()
171 log.Fatalln("Can not get network interfaces list:", err)
173 for _, ifiReString := range ctx.MCDRxIfis {
174 ifiRe, err := regexp.CompilePOSIX(ifiReString)
176 log.Fatalf("Can not compile POSIX regexp \"%s\": %s", ifiReString, err)
178 for _, ifi := range ifis {
179 if ifiRe.MatchString(ifi.Name) {
180 if err = ctx.MCDRx(ifi.Name); err != nil {
181 log.Printf("Can not run MCD reception on %s: %s", ifi.Name, err)
187 for i := int(*mcdWait); i > 0; i-- {
188 nncp.MCDAddrsM.RLock()
189 for _, mcdAddr := range nncp.MCDAddrs[*node.Id] {
190 addrs = append(addrs, mcdAddr.Addr.String())
195 nncp.MCDAddrsM.RUnlock()
196 time.Sleep(time.Second)
199 log.Fatalf("No MCD packets from the node during %d seconds", *mcdWait)
203 var onlyPkts map[[32]byte]bool
204 if len(*onlyPktsRaw) > 0 {
205 splitted = strings.Split(*onlyPktsRaw, ",")
206 onlyPkts = make(map[[32]byte]bool, len(splitted))
207 for _, pktIdRaw := range splitted {
208 pktId, err := nncp.Base32Codec.DecodeString(pktIdRaw)
210 log.Fatalln("Invalid packet specified: ", err)
212 pktIdArr := new([32]byte)
213 copy(pktIdArr[:], pktId)
214 onlyPkts[*pktIdArr] = true
220 var autoTossFinish chan struct{}
221 var autoTossBadCode chan bool
223 autoTossFinish, autoTossBadCode = ctx.AutoToss(
227 DoSeen: *autoTossDoSeen,
228 NoFile: *autoTossNoFile,
229 NoFreq: *autoTossNoFreq,
230 NoExec: *autoTossNoExec,
231 NoTrns: *autoTossNoTrns,
232 NoArea: *autoTossNoArea,
233 NoACK: *autoTossNoACK,
234 GenACK: *autoTossGenACK,
239 badCode := !ctx.CallNode(
254 close(autoTossFinish)
255 badCode = (<-autoTossBadCode) || badCode
257 nncp.SPCheckerWg.Wait()