trafgen: proto: Add ICMPv6 header generation

Support for generating simple ICMPv6 headers using the 'icmp6()/icmpv6()'
trafgen generation function.

Fields supported:

  mtype  Message type (default: 0)
         Supported keywords: echorequest, echoreply
  code   Code (default: 0)
  csum   Message checksum (calculated by default)

Examples:

  { eth(), ipv6(daddr=::1), icmpv6(echorequest), 42, 42, 0, 0  }'

If not explicitely specified, the lower header is initialized as Ethernet.

Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 6 insertions, 0 deletions

diff --git a/trafgen_l4.h b/trafgen_l4.h
index da73ebc..e94ff23 100644
--- a/trafgen_l4.h
+++ b/trafgen_l4.h
@@ -27,6 +27,12 @@ enum tcp_field {
 	TCP_URG_PTR,
 };
 
+enum icmpv6_field {
+	ICMPV6_TYPE,
+	ICMPV6_CODE,
+	ICMPV6_CSUM,
+};
+
 extern void protos_l4_init(void);
 
 #endif /* TRAFGEN_L4_H */