Add set_direction() stub

assignments/firewall/firewall.p4

@@ -86,7 +86,7 @@ parser MyParser(packet_in packet,
 ************   C H E C K S U M    V E R I F I C A T I O N   *************
 *************************************************************************/
 
-control MyVerifyChecksum(inout headers hdr, inout metadata meta) {   
+control MyVerifyChecksum(inout headers hdr, inout metadata meta) {
     apply {  }
 }
 
@@ -108,7 +108,7 @@ control MyIngress(inout headers hdr,
     action drop() {
         mark_to_drop(standard_metadata);
     }
-    
+
     action compute_hashes(ip4Addr_t ipAddr1, ip4Addr_t ipAddr2, bit<16> port1, bit<16> port2){
        //Get register position
        hash(reg_pos_one, HashAlgorithm.crc16, (bit<32>)0, {ipAddr1,
@@ -128,7 +128,10 @@ control MyIngress(inout headers hdr,
 
     action ipv4_forward(macAddr_t dstAddr, egressSpec_t port) {
     }
-    
+
+    action set_direction(bit dir){
+    }
+
     table ipv4_lpm {
         key = {
             hdr.ipv4.dstAddr: lpm;
@@ -154,7 +157,7 @@ control MyIngress(inout headers hdr,
         size = 1024;
         default_action = NoAction();
     }
-    
+
     apply {
         ipv4_lpm.apply();
         /*
@@ -179,7 +182,7 @@ control MyIngress(inout headers hdr,
 
 
         Here is a PSEUDOCODE of a possible solution.
-        
+
         if(tcp_is_valid(packet)):
             if(packet_ports_must_be_filtered(packet)):
                 packet_flow = direction