Add tcp_length

4 years ago · b795374efb
parent 64109ce917
commit b795374efb
2 changed files with 3 additions and 2 deletions
--- a/p4src/headers.p4
+++ b/p4src/headers.p4
@ -79,6 +79,7 @@ struct headers {
 }

 struct metadata {
+    bit<16> tcp_length;
 }

 #endif
--- a/p4src/parsers.p4
+++ b/p4src/parsers.p4
@ -23,7 +23,7 @@ parser MyParser(packet_in packet,

    state ipv4 {
        packet.extract(hdr.ipv4);
-		meta.tcpLength = hdr.ipv4.totalLen - 16w20;
+		meta.tcp_length = hdr.ipv4.totalLen - 16w20;

        transition select(hdr.ipv4.protocol){
            TYPE_TCP: tcp;
@ -33,7 +33,7 @@ parser MyParser(packet_in packet,

    state ipv6 {
        packet.extract(hdr.ipv6);
-		meta.tcpLength = hdr.ipv6.payload_length;
+		meta.tcp_length = hdr.ipv6.payload_length;

        transition select(hdr.ipv6.next_header){
            TYPE_TCP: tcp;