proto: add protocol header fields filter and ordering for packet decoding

The next patch introduces packet decoding for tracing messages based on
the proto definitions. In order to provide a readable output, add a filter
to surpress uninteresting header fields and allow to specify and explicit
output order.

Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/proto.h b/include/proto.h
index c252a67d..2a662a1a 100644
--- a/include/proto.h
+++ b/include/proto.h
@@ -85,6 +85,11 @@ struct proto_desc {
 		const struct proto_desc		*desc;
 	}				protocols[PROTO_UPPER_MAX];
 	struct proto_hdr_template	templates[PROTO_HDRS_MAX];
+	struct {
+		uint8_t				order[PROTO_HDRS_MAX];
+		uint32_t			filter;
+	}				format;
+
 };
 
 #define PROTO_LINK(__num, __desc)	{ .num = (__num), .desc = (__desc), }