614 lines
24 KiB
C
614 lines
24 KiB
C
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/* packet-openflow.c
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* Routines for OpenFlow dissection
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* Copyright 2013, Anders Broman <anders.broman@ericsson.com>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Ref https://www.opennetworking.org/sdn-resources/onf-specifications/openflow
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*/
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#include "config.h"
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#include <glib.h>
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#include <epan/packet.h>
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void proto_reg_handoff_openflow_v4(void);
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static int proto_openflow_v4 = -1;
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static int hf_openflow_v4_version = -1;
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static int hf_openflow_v4_type = -1;
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static int hf_openflow_v4_length = -1;
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static int hf_openflow_v4_xid = -1;
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static int hf_openflow_v4_datapath_id = -1;
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static int hf_openflow_datapath_v4_mac = -1;
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static int hf_openflow_v4_datapath_impl = -1;
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static int hf_openflow_v4_n_buffers = -1;
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static int hf_openflow_v4_n_tables = -1;
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static int hf_openflow_v4_auxiliary_id = -1;
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static int hf_openflow_v4_padd16 = -1;
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static int hf_openflow_v4_pad3 = -1;
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static int hf_openflow_v4_padd32 = -1;
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static int hf_openflow_v4_capabilities = -1;
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static int hf_openflow_v4_cap_flow_stats = -1;
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static int hf_openflow_v4_table_stats = -1;
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static int hf_openflow_v4_port_stats = -1;
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static int hf_openflow_v4_group_stats = -1;
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static int hf_openflow__v4_ip_reasm = -1;
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static int hf_openflow_v4_queue_stats = -1;
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static int hf_openflow_v4_port_blocked = -1;
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static int hf_openflow_v4_multipart_type = -1;
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static int hf_openflow_v4_multipart_request_flags = -1;
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static int hf_openflow_v4_multipart_reply_flags = -1;
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static gint ett_openflow_v4 = -1;
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static gint ett_openflow_v4_path_id = -1;
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static gint ett_openflow_v4_cap = -1;
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static const value_string openflow_v4_version_values[] = {
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{ 0x01, "1.0" },
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{ 0x02, "1.1" },
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{ 0x03, "1.2" },
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{ 0x04, "1.3.1" },
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{ 0, NULL }
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};
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/* Immutable messages. */
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#define OFPT_V4_HELLO 0 /* Symmetric message */
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#define OFPT_V4_ERROR 1 /* Symmetric message */
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#define OFPT_V4_ECHO_REQUEST 2 /* Symmetric message */
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#define OFPT_V4_ECHO_REPLY 3 /* Symmetric message */
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#define OFPT_V4_EXPERIMENTER 4 /* Symmetric message */
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/* Switch configuration messages. */
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#define OFPT_V4_FEATURES_REQUEST 5 /* Controller/switch message */
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#define OFPT_V4_FEATURES_REPLY 6 /* Controller/switch message */
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#define OFPT_V4_GET_CONFIG_REQUEST 7 /* Controller/switch message */
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#define OFPT_V4_GET_CONFIG_REPLY 8 /* Controller/switch message */
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#define OFPT_V4_SET_CONFIG 9 /* Controller/switch message */
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/* Asynchronous messages. */
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#define OFPT_V4_PACKET_IN 10 /* Async message */
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#define OFPT_V4_FLOW_REMOVED 11 /* Async message */
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#define OFPT_V4_PORT_STATUS 12 /* Async message */
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/* Controller command messages. */
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#define OFPT_V4_PACKET_OUT 13 /* Controller/switch message */
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#define OFPT_V4_FLOW_MOD 14 /* Controller/switch message */
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#define OFPT_V4_GROUP_MOD 15 /* Controller/switch message */
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#define OFPT_V4_PORT_MOD 16 /* Controller/switch message */
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#define OFPT_V4_TABLE_MOD 17 /* Controller/switch message */
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/* Multipart messages. */
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#define OFPT_V4_MULTIPART_REQUEST 18 /* Controller/switch message */
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#define OFPT_V4_MULTIPART_REPLY 19 /* Controller/switch message */
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/* Barrier messages. */
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#define OFPT_V4_BARRIER_REQUEST 20 /* Controller/switch message */
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#define OFPT_V4_BARRIER_REPLY 21 /* Controller/switch message */
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/* Queue Configuration messages. */
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#define OFPT_V4_QUEUE_GET_CONFIG_REQUEST 22 /* Controller/switch message */
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#define OFPT_V4_QUEUE_GET_CONFIG_REPLY 23 /* Controller/switch message */
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/* Controller role change request messages. */
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#define OFPT_V4_ROLE_REQUEST 24 /* Controller/switch message */
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#define OFPT_V4_ROLE_REPLY 25 /* Controller/switch message */
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/* Asynchronous message configuration. */
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#define OFPT_V4_GET_ASYNC_REQUEST 26 /* Controller/switch message */
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#define OFPT_V4_GET_ASYNC_REPLY 27 /* Controller/switch message */
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#define OFPT_V4_SET_ASYNC 28 /* Controller/switch message */
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/* Meters and rate limiters configuration messages. */
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#define OFPT_V4_METER_MOD 29 /* Controller/switch message */
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static const value_string openflow_v4_type_values[] = {
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/* Immutable messages. */
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{ 0, "OFPT_HELLO" }, /* Symmetric message */
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{ 1, "OFPT_ERROR" }, /* Symmetric message */
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{ 2, "OFPT_ECHO_REQUEST" }, /* Symmetric message */
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{ 3, "OFPT_ECHO_REPLY" }, /* Symmetric message */
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{ 4, "OFPT_EXPERIMENTER" }, /* Symmetric message */
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/* Switch configuration messages. */
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{ 5, "OFPT_FEATURES_REQUEST" }, /* Controller/switch message */
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{ 6, "OFPT_FEATURES_REPLY" }, /* Controller/switch message */
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{ 7, "OFPT_GET_CONFIG_REQUEST" }, /* Controller/switch message */
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{ 8, "OFPT_GET_CONFIG_REPLY" }, /* Controller/switch message */
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{ 9, "OFPT_SET_CONFIG" }, /* Controller/switch message */
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/* Asynchronous messages. */
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{ 10, "OFPT_PACKET_IN" }, /* Async message */
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{ 11, "OFPT_FLOW_REMOVED" }, /* Async message */
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{ 12, "OFPT_PORT_STATUS" }, /* Async message */
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/* Controller command messages. */
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{ 13, "OFPT_PACKET_OUT" }, /* Controller/switch message */
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{ 14, "OFPT_FLOW_MOD" }, /* Controller/switch message */
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{ 15, "OFPT_GROUP_MOD" }, /* Controller/switch message */
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{ 16, "OFPT_PORT_MOD" }, /* Controller/switch message */
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{ 17, "OFPT_TABLE_MOD" }, /* Controller/switch message */
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/* Multipart messages. */
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{ 18, "OFPT_MULTIPART_REQUEST" }, /* Controller/switch message */
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{ 19, "OFPT_MULTIPART_REPLY" }, /* Controller/switch message */
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/* Barrier messages. */
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{ 20, "OFPT_BARRIER_REQUEST" }, /* Controller/switch message */
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{ 21, "OFPT_BARRIER_REPLY" }, /* Controller/switch message */
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/* Queue Configuration messages. */
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{ 22, "OFPT_QUEUE_GET_CONFIG_REQUEST" }, /* Controller/switch message */
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{ 23, "OFPT_QUEUE_GET_CONFIG_REPLY" }, /* Controller/switch message */
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/* Controller role change request messages. */
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{ 24, "OFPT_ROLE_REQUEST" }, /* Controller/switch message */
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{ 25, "OFPT_ROLE_REPLY" }, /* Controller/switch message */
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/* Asynchronous message configuration. */
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{ 26, "OFPT_GET_ASYNC_REQUEST" }, /* Controller/switch message */
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{ 27, "OFPT_GET_ASYNC_REPLY" }, /* Controller/switch message */
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{ 28, "OFPT_SET_ASYNC" }, /* Controller/switch message */
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/* Meters and rate limiters configuration messages. */
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{ 29, "OFPT_METER_MOD" }, /* Controller/switch message */
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{ 0, NULL }
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};
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#define OFPC_V4_FLOW_STATS 1<<0 /* Flow statistics. */
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#define OFPC_V4_TABLE_STATS 1<<1 /* Table statistics. */
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#define OFPC_V4_PORT_STATS 1<<2 /* Port statistics. */
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#define OFPC_V4_GROUP_STATS 1<<3 /* Group statistics. */
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#define OFPC_V4_IP_REASM 1<<5 /* Can reassemble IP fragments. */
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#define OFPC_V4_QUEUE_STATS 1<<6 /* Queue statistics. */
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#define OFPC_V4_PORT_BLOCKED 1<<8 /* Switch will block looping ports. */
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/* Switch features. /
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struct ofp_switch_features {
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struct ofp_header header;
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uint64_t datapath_id; / Datapath unique ID. The lower 48-bits are for
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a MAC address, while the upper 16-bits are
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implementer-defined. /
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uint32_t n_buffers; / Max packets buffered at once. /
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uint8_t n_tables; / Number of tables supported by datapath. /
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uint8_t auxiliary_id; / Identify auxiliary connections /
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uint8_t pad[2]; / Align to 64-bits. /
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/ Features. /
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uint32_t capabilities; / Bitmap of support "ofp_capabilities". /
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uint32_t reserved;
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};
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OFP_ASSERT(sizeof(struct ofp_switch_features) == 32);
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*/
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static void
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dissect_openflow_features_reply_v4(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 length _U_)
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{
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proto_item *ti;
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proto_tree *path_id_tree, *cap_tree;
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ti = proto_tree_add_item(tree, hf_openflow_v4_datapath_id, tvb, offset, 8, ENC_BIG_ENDIAN);
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path_id_tree = proto_item_add_subtree(ti, ett_openflow_v4_path_id);
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proto_tree_add_item(path_id_tree, hf_openflow_datapath_v4_mac, tvb, offset, 6, ENC_NA);
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offset+=6;
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proto_tree_add_item(path_id_tree, hf_openflow_v4_datapath_impl, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset+=2;
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proto_tree_add_item(tree, hf_openflow_v4_n_buffers, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset+=4;
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/* Number of tables supported by datapath. */
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proto_tree_add_item(tree, hf_openflow_v4_n_tables, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset++;
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/* Identify auxiliary connections */
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proto_tree_add_item(tree, hf_openflow_v4_auxiliary_id, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset++;
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/* Align to 64-bits. */
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proto_tree_add_item(tree, hf_openflow_v4_padd16, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset+=2;
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ti = proto_tree_add_item(tree, hf_openflow_v4_capabilities, tvb, offset, 4, ENC_BIG_ENDIAN);
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cap_tree = proto_item_add_subtree(ti, ett_openflow_v4_cap);
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/* Dissect flags */
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proto_tree_add_item(cap_tree, hf_openflow_v4_cap_flow_stats, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(cap_tree, hf_openflow_v4_table_stats, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(cap_tree, hf_openflow_v4_port_stats, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(cap_tree, hf_openflow_v4_group_stats, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(cap_tree, hf_openflow__v4_ip_reasm, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(cap_tree, hf_openflow_v4_queue_stats, tvb, offset, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(cap_tree, hf_openflow_v4_port_blocked, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset+=4;
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proto_tree_add_item(tree, hf_openflow_v4_padd32, tvb, offset, 4, ENC_BIG_ENDIAN);
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/*offset+=4;*/
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}
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/* enum ofp_multipart_types { */
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/* Description of this OpenFlow switch.
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* The request body is empty.
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* The reply body is struct ofp_desc. */
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#define OFPMP_DESC 0
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/* Individual flow statistics.
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* The request body is struct ofp_flow_stats_request.
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* The reply body is an array of struct ofp_flow_stats. */
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#define OFPMP_FLOW 1
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/* Aggregate flow statistics.
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* The request body is struct ofp_aggregate_stats_request.
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* The reply body is struct ofp_aggregate_stats_reply. */
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#define OFPMP_AGGREGATE 2
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/* Flow table statistics.
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* The request body is empty.
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* The reply body is an array of struct ofp_table_stats. */
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#define OFPMP_TABLE 3
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/* Port statistics.
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* The request body is struct ofp_port_stats_request.
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* The reply body is an array of struct ofp_port_stats. */
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#define OFPMP_PORT_STATS 4
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/* Queue statistics for a port
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* The request body is struct ofp_queue_stats_request.
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* The reply body is an array of struct ofp_queue_stats */
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#define OFPMP_QUEUE 5
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/* Group counter statistics.
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* The request body is struct ofp_group_stats_request.
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* The reply is an array of struct ofp_group_stats. */
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#define OFPMP_GROUP 6
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/* Group description.
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* The request body is empty.
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* The reply body is an array of struct ofp_group_desc_stats. */
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#define OFPMP_GROUP_DESC 7
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/* Group features.
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* The request body is empty.
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* The reply body is struct ofp_group_features. */
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#define OFPMP_GROUP_FEATURES 8
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/* Meter statistics.
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* The request body is struct ofp_meter_multipart_requests.
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* The reply body is an array of struct ofp_meter_stats. */
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#define OFPMP_METER 9
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/* Meter configuration.
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* The request body is struct ofp_meter_multipart_requests.
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* The reply body is an array of struct ofp_meter_config. */
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#define OFPMP_METER_CONFIG 10
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/* Meter features.
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* The request body is empty.
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* The reply body is struct ofp_meter_features. */
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#define OFPMP_METER_FEATURES 11
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/* Table features.
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* The request body is either empty or contains an array of
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* struct ofp_table_features containing the controller's
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* desired view of the switch. If the switch is unable to
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* set the specified view an error is returned.
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* The reply body is an array of struct ofp_table_features. */
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#define OFPMP_TABLE_FEATURES 12
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/* Port description.
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* The request body is empty.
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* The reply body is an array of struct ofp_port. */
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#define OFPMP_PORT_DESC 13
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/* Experimenter extension.
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* The request and reply bodies begin with
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* struct ofp_experimenter_multipart_header.
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* The request and reply bodies are otherwise experimenter-defined. */
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#define OFPMP_EXPERIMENTER 0xffff
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static const value_string openflow_v4_multipart_type_values[] = {
|
||
|
|
{ OFPMP_DESC, "OFPMP_DESC" },
|
||
|
|
{ OFPMP_FLOW, "OFPMP_FLOW" },
|
||
|
|
{ OFPMP_TABLE, "OFPMP_TABLE" },
|
||
|
|
{ OFPMP_PORT_STATS, "OFPMP_PORT_STATS" },
|
||
|
|
{ OFPMP_QUEUE, "OFPMP_QUEUE" },
|
||
|
|
{ OFPMP_GROUP, "OFPMP_GROUP" },
|
||
|
|
{ OFPMP_GROUP_DESC, "OFPMP_GROUP_DESC" },
|
||
|
|
{ OFPMP_GROUP_FEATURES, "OFPMP_GROUP_FEATURES" },
|
||
|
|
{ OFPMP_METER, "OFPMP_METER" },
|
||
|
|
{ OFPMP_METER_CONFIG, "OFPMP_METER_CONFIG" },
|
||
|
|
{ OFPMP_METER_FEATURES, "OFPMP_METER_FEATURES" },
|
||
|
|
{ OFPMP_TABLE_FEATURES, "OFPMP_TABLE_FEATURES" },
|
||
|
|
{ OFPMP_PORT_DESC, "OFPMP_PORT_DESC" },
|
||
|
|
{ OFPMP_EXPERIMENTER, "OFPMP_EXPERIMENTER" },
|
||
|
|
{ 0, NULL }
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
struct ofp_multipart_request {
|
||
|
|
struct ofp_header header;
|
||
|
|
uint16_t type; / One of the OFPMP_* constants. /
|
||
|
|
uint16_t flags; / OFPMPF_REQ_* flags. /
|
||
|
|
uint8_t pad[4];
|
||
|
|
uint8_t body[0]; / Body of the request. /
|
||
|
|
};
|
||
|
|
*/
|
||
|
|
static void
|
||
|
|
dissect_openflow_multipart_request_v4(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 length _U_)
|
||
|
|
{
|
||
|
|
guint16 type;
|
||
|
|
|
||
|
|
/* type */
|
||
|
|
type = tvb_get_ntohs(tvb, offset);
|
||
|
|
proto_tree_add_item(tree, hf_openflow_v4_multipart_type , tvb, offset, 2, ENC_BIG_ENDIAN);
|
||
|
|
offset+=2;
|
||
|
|
|
||
|
|
/* uint16_t flags OFPMPF_REQ_* flags. */
|
||
|
|
proto_tree_add_item(tree, hf_openflow_v4_multipart_request_flags, tvb, offset, 2, ENC_BIG_ENDIAN);
|
||
|
|
offset+=2;
|
||
|
|
|
||
|
|
proto_tree_add_item(tree, hf_openflow_v4_padd32, tvb, offset, 4, ENC_BIG_ENDIAN);
|
||
|
|
offset+=4;
|
||
|
|
|
||
|
|
switch(type){
|
||
|
|
case OFPMP_DESC: /* 0 */
|
||
|
|
/* The request body is empty. */
|
||
|
|
break;
|
||
|
|
case OFPMP_FLOW:
|
||
|
|
/* The request body is struct ofp_flow_stats_request. */
|
||
|
|
proto_tree_add_text(tree, tvb, offset, -1, "struct ofp_flow_stats_request - not dissected yet");
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
if(length>16)
|
||
|
|
proto_tree_add_text(tree, tvb, offset, -1, "Type - not dissected yet");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
dissect_openflow_multipart_reply_v4(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 length _U_)
|
||
|
|
{
|
||
|
|
guint16 type;
|
||
|
|
|
||
|
|
/* type */
|
||
|
|
type = tvb_get_ntohs(tvb, offset);
|
||
|
|
proto_tree_add_item(tree, hf_openflow_v4_multipart_type, tvb, offset, 2, ENC_BIG_ENDIAN);
|
||
|
|
offset+=2;
|
||
|
|
|
||
|
|
/* uint16_t flags OFPMPF_REPLY_* flags. */
|
||
|
|
proto_tree_add_item(tree, hf_openflow_v4_multipart_reply_flags, tvb, offset, 2, ENC_BIG_ENDIAN);
|
||
|
|
offset+=2;
|
||
|
|
|
||
|
|
proto_tree_add_item(tree, hf_openflow_v4_padd32, tvb, offset, 4, ENC_BIG_ENDIAN);
|
||
|
|
offset+=4;
|
||
|
|
|
||
|
|
switch(type){
|
||
|
|
case OFPMP_DESC: /* 0 */
|
||
|
|
/* The reply body is struct ofp_desc. */
|
||
|
|
proto_tree_add_text(tree, tvb, offset, -1, "struct ofp_desc - not dissected yet");
|
||
|
|
break;
|
||
|
|
case OFPMP_FLOW:
|
||
|
|
/* The reply body is an array of struct ofp_flow_stats */
|
||
|
|
proto_tree_add_text(tree, tvb, offset, -1, "struct ofp_flow_stats - not dissected yet");
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
if(length>16)
|
||
|
|
proto_tree_add_text(tree, tvb, offset, -1, "Type - not dissected yet");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
dissect_openflow_v4(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
|
||
|
|
{
|
||
|
|
proto_item *ti;
|
||
|
|
proto_tree *openflow_tree;
|
||
|
|
guint offset = 0;
|
||
|
|
guint8 type;
|
||
|
|
guint16 length;
|
||
|
|
|
||
|
|
type = tvb_get_guint8(tvb, 1);
|
||
|
|
|
||
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "Type: %s",
|
||
|
|
val_to_str_const(type, openflow_v4_type_values, "Unknown Messagetype"));
|
||
|
|
|
||
|
|
/* Stop the Ethernet frame from overwriting the columns */
|
||
|
|
if((type == OFPT_V4_PACKET_IN) || (type == OFPT_V4_PACKET_OUT)){
|
||
|
|
col_set_writable(pinfo->cinfo, FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Create display subtree for the protocol */
|
||
|
|
ti = proto_tree_add_item(tree, proto_openflow_v4, tvb, 0, -1, ENC_NA);
|
||
|
|
openflow_tree = proto_item_add_subtree(ti, ett_openflow_v4);
|
||
|
|
|
||
|
|
/* A.1 OpenFlow Header. */
|
||
|
|
/* OFP_VERSION. */
|
||
|
|
proto_tree_add_item(openflow_tree, hf_openflow_v4_version, tvb, offset, 1, ENC_BIG_ENDIAN);
|
||
|
|
offset++;
|
||
|
|
|
||
|
|
/* One of the OFPT_ constants. */
|
||
|
|
proto_tree_add_item(openflow_tree, hf_openflow_v4_type, tvb, offset, 1, ENC_BIG_ENDIAN);
|
||
|
|
offset++;
|
||
|
|
|
||
|
|
/* Length including this ofp_header. */
|
||
|
|
length = tvb_get_ntohs(tvb, offset);
|
||
|
|
proto_tree_add_item(openflow_tree, hf_openflow_v4_length, tvb, offset, 2, ENC_BIG_ENDIAN);
|
||
|
|
offset+=2;
|
||
|
|
|
||
|
|
/* Transaction id associated with this packet. Replies use the same id as was in the request
|
||
|
|
* to facilitate pairing.
|
||
|
|
*/
|
||
|
|
proto_tree_add_item(openflow_tree, hf_openflow_v4_xid, tvb, offset, 4, ENC_BIG_ENDIAN);
|
||
|
|
offset+=4;
|
||
|
|
|
||
|
|
switch(type){
|
||
|
|
case OFPT_V4_HELLO: /* 0 */
|
||
|
|
/* 5.5.1 Hello
|
||
|
|
* The OFPT_HELLO message has no body;
|
||
|
|
*/
|
||
|
|
break;
|
||
|
|
case OFPT_V4_FEATURES_REQUEST: /* 5 */
|
||
|
|
/* 5.3.1 Handshake
|
||
|
|
* Upon TLS session establishment, the controller sends an OFPT_FEATURES_REQUEST
|
||
|
|
* message. This message does not contain a body beyond the OpenFlow header.
|
||
|
|
*/
|
||
|
|
break;
|
||
|
|
case OFPT_V4_FEATURES_REPLY: /* 6 */
|
||
|
|
dissect_openflow_features_reply_v4(tvb, pinfo, openflow_tree, offset, length);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case OFPT_V4_MULTIPART_REQUEST: /* 18 */
|
||
|
|
dissect_openflow_multipart_request_v4(tvb, pinfo, openflow_tree, offset, length);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case OFPT_V4_MULTIPART_REPLY: /* 19 */
|
||
|
|
dissect_openflow_multipart_reply_v4(tvb, pinfo, openflow_tree, offset, length);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
if(length>8){
|
||
|
|
proto_tree_add_text(tree, tvb, offset, -1, "Message data not dissected yet");
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return tvb_length(tvb);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Register the protocol with Wireshark.
|
||
|
|
*/
|
||
|
|
void
|
||
|
|
proto_register_openflow_v4(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
static hf_register_info hf[] = {
|
||
|
|
{ &hf_openflow_v4_version,
|
||
|
|
{ "Version", "openflow_v4.version",
|
||
|
|
FT_UINT8, BASE_HEX, VALS(openflow_v4_version_values), 0x7f,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_type,
|
||
|
|
{ "Type", "openflow_v4.type",
|
||
|
|
FT_UINT8, BASE_DEC, VALS(openflow_v4_type_values), 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_xid,
|
||
|
|
{ "Transaction ID", "openflow_v4.xid",
|
||
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_length,
|
||
|
|
{ "Length", "openflow_v4.length",
|
||
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_datapath_id,
|
||
|
|
{ "Datapath unique ID", "openflow_v4.datapath_id",
|
||
|
|
FT_UINT64, BASE_HEX, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_datapath_v4_mac,
|
||
|
|
{ "MAC addr", "openflow_v4.datapath_mac",
|
||
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_datapath_impl,
|
||
|
|
{ "Implementers part", "openflow_v4.datapath_imp",
|
||
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_n_buffers,
|
||
|
|
{ "n_buffers", "openflow_v4.n_buffers",
|
||
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_n_tables,
|
||
|
|
{ "n_tables", "openflow_v4.n_tables",
|
||
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_auxiliary_id,
|
||
|
|
{ "auxiliary_id", "openflow_v4.auxiliary_id",
|
||
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_padd16,
|
||
|
|
{ "Padding", "openflow_v4.padding16",
|
||
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_pad3,
|
||
|
|
{ "Padding", "openflow_v4.pad3",
|
||
|
|
FT_UINT24, BASE_DEC, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_padd32,
|
||
|
|
{ "Padding", "openflow_v4.padding32",
|
||
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_capabilities,
|
||
|
|
{ "capabilities", "openflow_v4.capabilities",
|
||
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_cap_flow_stats,
|
||
|
|
{ "Flow statistics", "openflow_v4.flow_stats",
|
||
|
|
FT_BOOLEAN, 32, NULL, OFPC_V4_FLOW_STATS,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_table_stats,
|
||
|
|
{ "Table statistics", "openflow_v4.table_stats",
|
||
|
|
FT_BOOLEAN, 32, NULL, OFPC_V4_TABLE_STATS,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_port_stats,
|
||
|
|
{ "Port statistics", "openflow_v4.port_stats",
|
||
|
|
FT_BOOLEAN, 32, NULL, OFPC_V4_PORT_STATS,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_group_stats,
|
||
|
|
{ "Group statistics", "openflow_v4.group_stats",
|
||
|
|
FT_BOOLEAN, 32, NULL, OFPC_V4_GROUP_STATS,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow__v4_ip_reasm,
|
||
|
|
{ "Can reassemble IP fragments", "openflow_v4.ip_reasm",
|
||
|
|
FT_BOOLEAN, 32, NULL, OFPC_V4_IP_REASM,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_queue_stats,
|
||
|
|
{ "Queue statistics", "openflow_v4.queue_stats",
|
||
|
|
FT_BOOLEAN, 32, NULL, OFPC_V4_QUEUE_STATS,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_port_blocked,
|
||
|
|
{ "Switch will block looping ports", "openflow_v4.port_blocked",
|
||
|
|
FT_BOOLEAN, 32, NULL, OFPC_V4_PORT_BLOCKED,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_multipart_type,
|
||
|
|
{ "Type", "openflow_v4.multipart_type",
|
||
|
|
FT_UINT16, BASE_DEC, VALS(openflow_v4_multipart_type_values), 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_multipart_request_flags,
|
||
|
|
{ "Flags", "openflow_v4.multipart_request_flags",
|
||
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
{ &hf_openflow_v4_multipart_reply_flags,
|
||
|
|
{ "Flags", "openflow_v4.multipart_request_flags",
|
||
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
||
|
|
NULL, HFILL }
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
static gint *ett[] = {
|
||
|
|
&ett_openflow_v4,
|
||
|
|
&ett_openflow_v4_path_id,
|
||
|
|
&ett_openflow_v4_cap,
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Register the protocol name and description */
|
||
|
|
proto_openflow_v4 = proto_register_protocol("OpenFlow_V4",
|
||
|
|
"openflow_v4", "openflow_v4");
|
||
|
|
|
||
|
|
new_register_dissector("openflow_v4", dissect_openflow_v4, proto_openflow_v4);
|
||
|
|
|
||
|
|
/* Required function calls to register the header fields and subtrees */
|
||
|
|
proto_register_field_array(proto_openflow_v4, hf, array_length(hf));
|
||
|
|
proto_register_subtree_array(ett, array_length(ett));
|
||
|
|
|
||
|
|
}
|