1 files changed, 90 insertions, 0 deletions
diff --git a/openflow.h b/openflow.h
new file mode 100644
index 0000000..2d56d15
--- /dev/null
+++ b/openflow.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2013 The TCPDUMP project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* OpenFlow: protocol between controller and datapath. */
+
+/* for netdissect_options */
+#include "netdissect.h"
+
+#define OF_FWD(n) { \
+	cp += (n); \
+	len -= (n); \
+}
+
+#define OF_CHK_FWD(n) { \
+	ND_TCHECK_LEN(cp, (n)); \
+	cp += (n); \
+	len -= (n); \
+}
+
+#define OF_VER_1_0 0x01U
+#define OF_VER_1_1 0x02U
+#define OF_VER_1_2 0x03U
+#define OF_VER_1_3 0x04U
+#define OF_VER_1_4 0x05U
+#define OF_VER_1_5 0x06U
+
+#define OF_HEADER_FIXLEN 8U
+
+#define ONF_EXP_ONF               0x4f4e4600
+#define ONF_EXP_BUTE              0xff000001
+#define ONF_EXP_NOVIFLOW          0xff000002
+#define ONF_EXP_L3                0xff000003
+#define ONF_EXP_L4L7              0xff000004
+#define ONF_EXP_WMOB              0xff000005
+#define ONF_EXP_FABS              0xff000006
+#define ONF_EXP_OTRANS            0xff000007
+#define ONF_EXP_NBLNCTU           0xff000008
+#define ONF_EXP_MPCE              0xff000009
+#define ONF_EXP_MPLSTPSPTN        0xff00000a
+extern const struct tok onf_exp_str[];
+
+extern const char * of_vendor_name(const uint32_t);
+extern void of_bitmap_print(netdissect_options *ndo,
+	const struct tok *, const uint32_t, const uint32_t);
+extern void of_data_print(netdissect_options *ndo,
+	const u_char *, const u_int);
+
+/*
+ * Routines to handle various versions of OpenFlow.
+ */
+
+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);