crowdsec/pkg/types/utils.go
2020-05-28 11:32:00 +02:00

95 lines
2.2 KiB
Go

package types
import (
"encoding/binary"
"fmt"
"io"
"net"
log "github.com/sirupsen/logrus"
"gopkg.in/natefinch/lumberjack.v2"
)
func IP2Int(ip net.IP) uint32 {
if len(ip) == 16 {
return binary.BigEndian.Uint32(ip[12:16])
}
return binary.BigEndian.Uint32(ip)
}
func Int2ip(nn uint32) net.IP {
ip := make(net.IP, 4)
binary.BigEndian.PutUint32(ip, nn)
return ip
}
//Stolen from : https://github.com/llimllib/ipaddress/
// Return the final address of a net range. Convert to IPv4 if possible,
// otherwise return an ipv6
func LastAddress(n *net.IPNet) net.IP {
ip := n.IP.To4()
if ip == nil {
ip = n.IP
return net.IP{
ip[0] | ^n.Mask[0], ip[1] | ^n.Mask[1], ip[2] | ^n.Mask[2],
ip[3] | ^n.Mask[3], ip[4] | ^n.Mask[4], ip[5] | ^n.Mask[5],
ip[6] | ^n.Mask[6], ip[7] | ^n.Mask[7], ip[8] | ^n.Mask[8],
ip[9] | ^n.Mask[9], ip[10] | ^n.Mask[10], ip[11] | ^n.Mask[11],
ip[12] | ^n.Mask[12], ip[13] | ^n.Mask[13], ip[14] | ^n.Mask[14],
ip[15] | ^n.Mask[15]}
}
return net.IPv4(
ip[0]|^n.Mask[0],
ip[1]|^n.Mask[1],
ip[2]|^n.Mask[2],
ip[3]|^n.Mask[3])
}
var logFormatter log.Formatter
var logOutput io.Writer
var logLevel log.Level
var logReportCaller bool
func SetDefaultLoggerConfig(cfgMode string, cfgFolder string, cfgLevel log.Level) error {
/*Configure logs*/
if cfgMode == "file" {
logOutput = &lumberjack.Logger{
Filename: cfgFolder + "/crowdsec.log",
MaxSize: 500, //megabytes
MaxBackups: 3,
MaxAge: 28, //days
Compress: true, //disabled by default
}
log.SetOutput(logOutput)
} else if cfgMode != "stdout" {
return fmt.Errorf("log mode '%s' unknown", cfgMode)
}
logLevel = cfgLevel
log.SetLevel(logLevel)
if logLevel >= log.InfoLevel {
logFormatter = &log.TextFormatter{TimestampFormat: "02-01-2006 15:04:05", FullTimestamp: true}
log.SetFormatter(logFormatter)
}
if logLevel >= log.DebugLevel {
logReportCaller = true
log.SetReportCaller(true)
}
return nil
}
func ConfigureLogger(clog *log.Logger) error {
/*Configure logs*/
if logOutput != nil {
clog.SetOutput(logOutput)
}
if logReportCaller {
clog.SetReportCaller(true)
}
if logFormatter != nil {
clog.SetFormatter(logFormatter)
}
clog.SetLevel(logLevel)
return nil
}