X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/853e9dccefb7b2049305fa57cc7f3e7d2f85965b..c518a9aab149da1a6b83c0cbeddaff5265d05dcb:/openflow.h

diff --git a/openflow.h b/openflow.h
index 996835b5..2d56d154 100644
--- a/openflow.h
+++ b/openflow.h
@@ -72,15 +72,19 @@ extern void of_data_print(netdissect_options *ndo,
 /*
  * Routines to handle various versions of OpenFlow.
  */
-extern void of10_message_print(netdissect_options *ndo,
-	const u_char *, uint16_t, const uint8_t);
-extern void of13_message_print(netdissect_options *ndo,
-	const u_char *, uint16_t, const uint8_t);
 
-/*
- * Use this instead of ofpt_str[] and OFPT_ constants because OpenFlow
- * specifications define protocol encoding in C syntax, and different
- * versions clash on many names, including the OFPT_ constants.
- */
-extern const char * of10_msgtype_str(const uint8_t);
-extern const char * of13_msgtype_str(const uint8_t);
+struct of_msgtypeinfo {
+	/* Should not be NULL. */
+	const char *name;
+	/* May be NULL to mean "message body printing is not implemented". */
+	void (*decoder)(netdissect_options *ndo, const u_char *, const u_int);
+	enum {
+		REQ_NONE,   /* Message body length may be anything. */
+		REQ_FIXLEN, /* Message body length must be == req_value. */
+		REQ_MINLEN, /* Message body length must be >= req_value. */
+	} req_what;
+	uint16_t req_value;
+};
+
+extern const struct of_msgtypeinfo *of10_identify_msgtype(const uint8_t);
+extern const struct of_msgtypeinfo *of13_identify_msgtype(const uint8_t);