2 NNCP -- Node to Node copy, utilities for store-and-forward data exchange
3 Copyright (C) 2016-2018 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, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
31 "golang.org/x/net/netutil"
35 fmt.Fprintf(os.Stderr, nncp.UsageHeader())
36 fmt.Fprintf(os.Stderr, "nncp-daemon -- TCP daemon\n\n")
37 fmt.Fprintf(os.Stderr, "Usage: %s [options]\nOptions:\n", os.Args[0])
43 cfgPath = flag.String("cfg", nncp.DefaultCfgPath, "Path to configuration file")
44 niceRaw = flag.String("nice", nncp.NicenessFmt(255), "Minimal required niceness")
45 bind = flag.String("bind", "[::]:5400", "Address to bind to")
46 maxConn = flag.Int("maxconn", 128, "Maximal number of simultaneous connections")
47 spoolPath = flag.String("spool", "", "Override path to spool")
48 logPath = flag.String("log", "", "Override path to logfile")
49 quiet = flag.Bool("quiet", false, "Print only errors")
50 debug = flag.Bool("debug", false, "Print debug messages")
51 version = flag.Bool("version", false, "Print version information")
52 warranty = flag.Bool("warranty", false, "Print warranty information")
57 fmt.Println(nncp.Warranty)
61 fmt.Println(nncp.VersionGet())
64 nice, err := nncp.NicenessParse(*niceRaw)
69 ctx, err := nncp.CtxFromCmdline(*cfgPath, *spoolPath, *logPath, *quiet, *debug)
71 log.Fatalln("Error during initialization:", err)
74 log.Fatalln("Config lacks private keys")
77 ln, err := net.Listen("tcp", *bind)
79 log.Fatalln("Can not listen:", err)
81 ln = netutil.LimitListener(ln, *maxConn)
83 conn, err := ln.Accept()
85 log.Fatalln("Can not accept connection:", err)
87 ctx.LogD("daemon", nncp.SDS{"addr": conn.RemoteAddr()}, "accepted")
88 go func(conn net.Conn) {
89 state, err := ctx.StartR(conn, nice, "")
91 ctx.LogI("call-start", nncp.SDS{"node": state.Node.Id}, "connected")
93 ctx.LogI("call-finish", nncp.SDS{
94 "node": state.Node.Id,
95 "duration": strconv.FormatInt(int64(state.Duration.Seconds()), 10),
96 "rxbytes": strconv.FormatInt(state.RxBytes, 10),
97 "txbytes": strconv.FormatInt(state.TxBytes, 10),
98 "rxspeed": strconv.FormatInt(state.RxSpeed, 10),
99 "txspeed": strconv.FormatInt(state.TxSpeed, 10),
103 if state != nil && state.Node != nil {
104 nodeId = state.Node.Id.String()
106 ctx.LogE("call-start", nncp.SDS{"node": nodeId, "err": err}, "")