zapret-auto: reset parameter to standard_detector

lua/zapret-lib.lua

@@ -762,6 +762,33 @@ function fix_ip6_next(ip6, last_proto)
 	end
 end
 
+-- reverses ip addresses, ports and seq/ack
+function dis_reverse(dis)
+	local temp
+	if dis.ip then
+		temp = dis.ip.ip_src
+		dis.ip.ip_src = dis.ip.ip_dst
+		dis.ip.ip_dst = temp
+	end
+	if dis.ip6 then
+		temp = dis.ip6.ip6_src
+		dis.ip6.ip6_src = dis.ip6.ip6_dst
+		dis.ip6.ip6_dst = temp
+	end
+	if dis.tcp then
+		temp = dis.tcp.th_sport
+		dis.tcp.th_sport = dis.tcp.th_dport
+		dis.tcp.th_dport = temp
+		temp = dis.tcp.th_ack
+		dis.tcp.th_ack = dis.tcp.th_seq
+		dis.tcp.th_seq = temp
+	end
+	if dis.udp then
+		temp = dis.udp.uh_sport
+		dis.udp.uh_sport = dis.udp.uh_dport
+		dis.udp.uh_dport = temp
+	end
+end
 
 -- parse autottl : delta,min-max
 function parse_autottl(s)