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fix: protecting concurrent access to LAN hosts

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This commit is contained in:
evilsocket 2018-02-20 11:33:30 +01:00
commit 241db0cc66
6 changed files with 43 additions and 23 deletions
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8
modules/dhcp6_spoof.go
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@ -154,8 +154,8 @@ func (s *DHCP6Spoofer) dhcpAdvertise(pkt gopacket.Packet, solicit dhcp6.Packet,
}
var ip net.IP
if t, found := s.Session.Lan.Hosts[target.String()]; found == true {
ip = t.IP
if h, found := s.Session.Lan.Get(target.String()); found == true {
ip = h.IP
} else {
log.Warning("Address %s not known, using random identity association address.", target.String())
rand.Read(ip)
@ -312,8 +312,8 @@ func (s *DHCP6Spoofer) dhcpReply(toType string, pkt gopacket.Packet, req dhcp6.P
addr = net.IP(raw[0])
}
if t, found := s.Session.Lan.Hosts[target.String()]; found == true {
log.Info("[%s] IPv6 address %s is now assigned to %s", core.Green("dhcp6"), addr.String(), t)
if h, found := s.Session.Lan.Get(target.String()); found == true {
log.Info("[%s] IPv6 address %s is now assigned to %s", core.Green("dhcp6"), addr.String(), h)
} else {
log.Info("[%s] IPv6 address %s is now assigned to %s", core.Green("dhcp6"), addr.String(), target)
}