trafgen: l4: Add UDP header generation logic

Add trafgen_l4.c module with generation UDP header fields.

UDP protocol generation logic automaticaly sets the protocol field of
the lower level protocol to IPPROTO_UDP by default (if it is IPv4).
Also checksum & length are calculated and set if it is not given by the
user.

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 13 insertions, 0 deletions

diff --git a/trafgen_l4.h b/trafgen_l4.h
new file mode 100644
index 0000000..4651009
--- /dev/null
+++ b/trafgen_l4.h
@@ -0,0 +1,13 @@
+#ifndef TRAFGEN_L4_H
+#define TRAFGEN_L4_H
+
+enum udp_field {
+	UDP_SPORT,
+	UDP_DPORT,
+	UDP_LEN,
+	UDP_CSUM,
+};
+
+extern void protos_l4_init(void);
+
+#endif /* TRAFGEN_L4_H */