yo/mynettcptable
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go fmt

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yo 2022-05-13 10:42:47 +02:00
parent 3267a19888
commit b9807f0ba7
1 changed files with 45 additions and 52 deletions
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27
mynettcptable.go
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@ -7,22 +7,22 @@
package main
import (
"os"
"fmt"
"net"
// "log"
"os"
// "log"
"errors"
"flag"
"log/syslog"
"strings"
"sync"
"time"
"errors"
"strings"
"log/syslog"
"github.com/tabalt/pidfile"
"github.com/go-ldap/ldap/v3"
"github.com/peterbourgon/ff"
"github.com/sirupsen/logrus"
lSyslog "github.com/sirupsen/logrus/hooks/syslog"
"github.com/tabalt/pidfile"
)
const (
@ -95,7 +95,6 @@ func unsetNetCachePresentFlag() {
}
}
func buildNetCacheFromIPNetwork(conLdap *ldap.Conn) error {
attribute := "ipNetworkNumber"
@ -117,17 +116,13 @@ func buildNetCacheFromIPNetwork(conLdap *ldap.Conn) error {
logstream.Info(fmt.Sprintf("Error searching into LDAP: Attribute %s not found for entry %s\n", attribute, r))
continue
} else {
// Explode the network to individual IPs
// 1: Verify format : Either CIDR, or netmask is in ipNetworkMask (do we want to support this?)
// 2: n := iplib.NewNet4(net.ParseIP("192.168.0.0"), 16)
// n.Enumerate(
_, ipnet, err := net.ParseCIDR(r.Attributes[0].Values[0])
if err != nil {
logstream.Info(err.Error())
continue
}
if false == checkNetCacheContainsAndFlag(ipnet) {
netCache = append(netCache, NoAuthNet{ Net: ipnet, Present: true })
netCache = append(netCache, NoAuthNet{Net: ipnet, Present: true})
}
}
}
@ -143,7 +138,6 @@ func buildNetCacheFromIPNetwork(conLdap *ldap.Conn) error {
return nil
}
func isIPContainedInNetCache(string_ip string) (bool, error) {
ip := net.ParseIP(string_ip)
if ip == nil {
@ -214,7 +208,7 @@ func handleConnection(connClt net.Conn, conLdap *ldap.Conn) {
// "set loglevel level" sent on listening port will set current loglevel
if readlen > 14 && strings.EqualFold(string(buf[:12]), "set loglevel") {
logstream.Infof("Received \"%s\" instruction from %s", string(buf[:readlen-1]), connClt.RemoteAddr().String())
level, err := logrus.ParseLevel(string(buf[13:readlen-1]))
level, err := logrus.ParseLevel(string(buf[13 : readlen-1]))
if err != nil {
sendResponse(connClt, fmt.Sprintf("Invalid log level: %s", string(buf[13:readlen-1])), 500)
} else {
@ -230,7 +224,7 @@ func handleConnection(connClt net.Conn, conLdap *ldap.Conn) {
sendResponse(connClt, fmt.Sprintf("Invalid request: %s", buf[:readlen-1]), 500)
continue
}
ip := string(buf[4:readlen-1])
ip := string(buf[4 : readlen-1])
// First query netCache built with ipNetworkNumber
res, err := isIPContainedInNetCache(ip)
@ -391,7 +385,7 @@ func main() {
if strings.EqualFold(*logTo, "syslog") {
// level != priority
prio := syslog.LOG_MAIL
switch (*logLevel) {
switch *logLevel {
case "fatal":
prio += syslog.LOG_CRIT
case "error":
@ -422,4 +416,3 @@ func main() {
logstream.Infof("Start listening for incoming connections on %s\n", *listen)
run()
}