/*
NNCP -- Node to Node copy, utilities for store-and-forward data exchange
-Copyright (C) 2016-2017 Sergey Matveev <stargrave@stargrave.org>
+Copyright (C) 2016-2019 Sergey Matveev <stargrave@stargrave.org>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+the Free Software Foundation, version 3 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-// NNCP TCP daemon
+// NNCP TCP daemon.
package main
import (
"flag"
"fmt"
- "io/ioutil"
"log"
"net"
"os"
"strconv"
+ "time"
"cypherpunks.ru/nncp"
"golang.org/x/net/netutil"
func usage() {
fmt.Fprintf(os.Stderr, nncp.UsageHeader())
- fmt.Fprintln(os.Stderr, "nncp-daemon -- TCP daemon\n")
- fmt.Fprintf(os.Stderr, "Usage: %s [options]\nOptions:", os.Args[0])
+ fmt.Fprintf(os.Stderr, "nncp-daemon -- TCP daemon\n\n")
+ fmt.Fprintf(os.Stderr, "Usage: %s [options]\nOptions:\n", os.Args[0])
flag.PrintDefaults()
}
+type InetdConn struct {
+ r *os.File
+ w *os.File
+}
+
+func (ic *InetdConn) Read(p []byte) (n int, err error) {
+ return ic.r.Read(p)
+}
+
+func (ic *InetdConn) Write(p []byte) (n int, err error) {
+ return ic.w.Write(p)
+}
+
+func (ic *InetdConn) SetReadDeadline(t time.Time) error {
+ return ic.r.SetReadDeadline(t)
+}
+
+func (ic *InetdConn) SetWriteDeadline(t time.Time) error {
+ return ic.w.SetWriteDeadline(t)
+}
+
+func performSP(ctx *nncp.Ctx, conn nncp.ConnDeadlined, nice uint8) {
+ state := nncp.SPState{
+ Ctx: ctx,
+ Nice: nice,
+ }
+ if err := state.StartR(conn); err == nil {
+ ctx.LogI("call-start", nncp.SDS{"node": state.Node.Id}, "connected")
+ state.Wait()
+ ctx.LogI("call-finish", nncp.SDS{
+ "node": state.Node.Id,
+ "duration": strconv.FormatInt(int64(state.Duration.Seconds()), 10),
+ "rxbytes": strconv.FormatInt(state.RxBytes, 10),
+ "txbytes": strconv.FormatInt(state.TxBytes, 10),
+ "rxspeed": strconv.FormatInt(state.RxSpeed, 10),
+ "txspeed": strconv.FormatInt(state.TxSpeed, 10),
+ }, "")
+ } else {
+ nodeId := "unknown"
+ if state.Node != nil {
+ nodeId = state.Node.Id.String()
+ }
+ ctx.LogE("call-start", nncp.SDS{"node": nodeId, "err": err}, "")
+ }
+}
+
func main() {
var (
- cfgPath = flag.String("cfg", nncp.DefaultCfgPath, "Path to configuration file")
- niceRaw = flag.Int("nice", 255, "Minimal required niceness")
- bind = flag.String("bind", ":5400", "Address to bind to")
- maxConn = flag.Int("maxconn", 128, "Maximal number of simultaneous connections")
- quiet = flag.Bool("quiet", false, "Print only errors")
- debug = flag.Bool("debug", false, "Enable debugging information")
- version = flag.Bool("version", false, "Print version information")
- warranty = flag.Bool("warranty", false, "Print warranty information")
+ cfgPath = flag.String("cfg", nncp.DefaultCfgPath, "Path to configuration file")
+ niceRaw = flag.String("nice", nncp.NicenessFmt(255), "Minimal required niceness")
+ bind = flag.String("bind", "[::]:5400", "Address to bind to")
+ inetd = flag.Bool("inetd", false, "Is it started as inetd service")
+ maxConn = flag.Int("maxconn", 128, "Maximal number of simultaneous connections")
+ spoolPath = flag.String("spool", "", "Override path to spool")
+ logPath = flag.String("log", "", "Override path to logfile")
+ quiet = flag.Bool("quiet", false, "Print only errors")
+ debug = flag.Bool("debug", false, "Print debug messages")
+ version = flag.Bool("version", false, "Print version information")
+ warranty = flag.Bool("warranty", false, "Print warranty information")
)
flag.Usage = usage
flag.Parse()
fmt.Println(nncp.VersionGet())
return
}
- if *niceRaw < 1 || *niceRaw > 255 {
- log.Fatalln("-nice must be between 1 and 255")
+ nice, err := nncp.NicenessParse(*niceRaw)
+ if err != nil {
+ log.Fatalln(err)
}
- nice := uint8(*niceRaw)
- cfgRaw, err := ioutil.ReadFile(*cfgPath)
+ ctx, err := nncp.CtxFromCmdline(*cfgPath, *spoolPath, *logPath, *quiet, *debug)
if err != nil {
- log.Fatalln("Can not read config:", err)
+ log.Fatalln("Error during initialization:", err)
}
- ctx, err := nncp.CfgParse(cfgRaw)
- if err != nil {
- log.Fatalln("Can not parse config:", err)
+ if ctx.Self == nil {
+ log.Fatalln("Config lacks private keys")
+ }
+
+ if *inetd {
+ os.Stderr.Close()
+ conn := &InetdConn{os.Stdin, os.Stdout}
+ performSP(ctx, conn, nice)
+ return
}
- ctx.Quiet = *quiet
- ctx.Debug = *debug
ln, err := net.Listen("tcp", *bind)
if err != nil {
}
ctx.LogD("daemon", nncp.SDS{"addr": conn.RemoteAddr()}, "accepted")
go func(conn net.Conn) {
- state, err := ctx.StartR(conn, nice, nil)
- if err == nil {
- ctx.LogI("call-start", nncp.SDS{"node": state.NodeId}, "connected")
- state.Wait()
- ctx.LogI("call-finish", nncp.SDS{
- "node": state.NodeId,
- "duration": strconv.FormatInt(int64(state.Duration.Seconds()), 10),
- "rxbytes": strconv.FormatInt(state.RxBytes, 10),
- "txbytes": strconv.FormatInt(state.TxBytes, 10),
- "rxspeed": strconv.FormatInt(state.RxSpeed, 10),
- "txspeed": strconv.FormatInt(state.TxSpeed, 10),
- }, "")
- } else {
- ctx.LogE("call-start", nncp.SDS{"node": state.NodeId, "err": err}, "")
- }
+ performSP(ctx, conn, nice)
conn.Close()
}(conn)
}