From Joakim Wiberg:

Device Level Ring protocol addition.
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3685

With some minor changes (blurb NULL whem text equal).

svn path=/trunk/; revision=29044

1 files changed, 51 insertions, 0 deletions

diff --git a/epan/dissectors/packet-enip.h b/epan/dissectors/packet-enip.h
index 018ca297ff..a16cda9821 100644
--- a/epan/dissectors/packet-enip.h
+++ b/epan/dissectors/packet-enip.h
@@ -27,6 +27,57 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+/* Offsets of fields within the DLR Common Frame Header */
+#define DLR_CFH_SUB_TYPE       0
+#define DLR_CFH_PROTO_VERSION  1
+
+/* Offsets (from beginning of the packet) of fields within the DLR Message
+ * Payload Fields
+ */
+#define DLR_MPF_FRAME_TYPE       2
+#define DLR_MPF_SOURCE_PORT      3
+#define DLR_MPF_SOURCE_IP        4
+#define DLR_MPF_SEQUENCE_ID      8
+
+/* Offset for Beacon frames */
+#define DLR_BE_RING_STATE              12
+#define DLR_BE_SUPERVISOR_PRECEDENCE   13
+#define DLR_BE_BEACON_INTERVAL         14
+#define DLR_BE_BEACON_TIMEOUT          18
+#define DLR_BE_RESERVED                22
+
+/* Offset for Neighbor_Check_Request frames */
+#define DLR_NREQ_RESERVED     12
+
+/* Offset for Neighbor_Check_Response frames */
+#define DLR_NRES_SOURCE_PORT  12
+#define DLR_NRES_RESERVED     13
+
+/* Offset for Link_Status/Neighbor_Status frames */
+#define DLR_LNS_SOURCE_PORT   12
+#define DLR_LNS_RESERVED      13
+
+/* Offset for Locate_Fault frames */
+#define DLR_LF_RESERVED     12
+
+/* Offset for Announce frames */
+#define DLR_AN_RING_STATE   12
+#define DLR_AN_RESERVED     13
+
+/* Offset for Sign_On frames */
+#define DLR_SO_NUM_NODES    12
+#define DLR_SO_NODE_1_MAC   14
+
+/* DLR commmands */
+#define DLR_FT_BEACON            1
+#define DLR_FT_NEIGHBOR_REQ      2
+#define DLR_FT_NEIGHBOR_RES      3
+#define DLR_FT_LINK_STAT         4
+#define DLR_FT_LOCATE_FLT        5
+#define DLR_FT_ANNOUNCE          6
+#define DLR_FT_SIGN_ON           7
+
+
 typedef struct {
    guint32 req_num, rep_num;
    nstime_t req_time;