epan/dissectors/packet-openflow_v1.c

   1 /* packet-openflow.c
   2  * Routines for OpenFlow dissection
   3  * Copyright 2013, Anders Broman <anders.broman@ericsson.com>
   4  * Copyright 2013, Zoltan Lajos Kis <zoltan.lajos.kis@ericsson.com>
   5  *
   6  * $Id$
   7  *
   8  * Wireshark - Network traffic analyzer
   9  * By Gerald Combs <gerald@wireshark.org>
  10  * Copyright 1998 Gerald Combs
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License along
  23  * with this program; if not, write to the Free Software Foundation, Inc.,
  24  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  25  *
  26  * Ref https://www.opennetworking.org/sdn-resources/onf-specifications/openflow
  27  */
  28
  29 #include "config.h"
  30
  31 #include <glib.h>
  32
  33 #include <epan/packet.h>
  34 #include <epan/prefs.h>
  35
  36 void proto_register_openflow_v1(void);
  37 void proto_reg_handoff_openflow_v1(void);
  38
  39 static dissector_handle_t eth_withoutfcs_handle;
  40
  41 /* Initialize the protocol and registered fields */
  42 static int proto_openflow_v1 = -1;
  43 static int hf_openflow_version = -1;
  44 static int hf_openflow_1_0_type = -1;
  45 static int hf_openflow_length = -1;
  46 static int hf_openflow_xid = -1;
  47
  48 static int hf_openflow_datapath_id = -1;
  49 static int hf_openflow_datapath_mac = -1;
  50 static int hf_openflow_datapath_impl = -1;
  51 static int hf_openflow_n_buffers = -1;
  52 static int hf_openflow_n_tables = -1;
  53 static int hf_openflow_auxiliary_id = -1;
  54 static int hf_openflow_pad3 = -1;
  55 static int hf_openflow_capabilities = -1;
  56 static int hf_openflow_actions = -1;
  57 static int hf_openflow_reserved32 = -1;
  58 static int hf_openflow_cap_flow_stats = -1;
  59 static int hf_openflow_table_stats = -1;
  60 static int hf_openflow_port_stats = -1;
  61 static int hf_openflow_group_stats = -1;
  62 static int hf_openflow_ip_reasm = -1;
  63 static int hf_openflow_queue_stats = -1;
  64 static int hf_openflow_port_blocked = -1;
  65
  66 static int hf_openflow_output = -1; /* Output to switch port. */
  67 static int hf_openflow_set_vlan_vid = -1; /* Set the 802.1q VLAN id. */
  68 static int hf_openflow_set_vlan_pcp = -1; /* Set the 802.1q priority. */
  69 static int hf_openflow_strip_vlan = -1; /* Strip the 802.1q header. */
  70 static int hf_openflow_set_dl_src = -1; /* Ethernet source address. */
  71 static int hf_openflow_set_dl_dst = -1; /* Ethernet destination address. */
  72 static int hf_openflow_set_nw_src = -1; /* IP source address. */
  73 static int hf_openflow_set_nw_dst = -1; /* IP destination address. */
  74 static int hf_openflow_set_nw_tos = -1; /* IP ToS (DSCP field, 6 bits). */
  75 static int hf_openflow_set_tp_src = -1; /* TCP/UDP source port. */
  76 static int hf_openflow_set_tp_dst = -1; /* TCP/UDP destination port. */
  77 static int hf_openflow_enqueue = -1; /* Output to queue. */
  78
  79 static int hf_openflow_port_no = -1;
  80 static int hf_openflow_hw_addr = -1;
  81 static int hf_openflow_port_name = -1;
  82
  83
  84 static int hf_openflow_port_config = -1;
  85 static int hf_openflow_port_state = -1;
  86 static int hf_openflow_port_curr = -1;
  87 static int hf_openflow_port_advertised = -1;
  88 static int hf_openflow_port_supported = -1;
  89 static int hf_openflow_port_peer = -1;
  90
  91 static int hf_openflow_port_down = -1;    /* Port is administratively down. */
  92 static int hf_openflow_no_stp = -1;       /* Disable 802.1D spanning tree on port. */
  93 static int hf_openflow_no_recv = -1;      /* Drop all packets except 802.1D spanning tree packets. */
  94 static int hf_openflow_no_recv_stp = -1;  /* Drop received 802.1D STP packets. */
  95 static int hf_openflow_no_flood = -1;     /* Do not include this port when flooding. */
  96 static int hf_openflow_no_fwd = -1;       /* Drop packets forwarded to port. */
  97 static int hf_openflow_no_packet_in = -1; /* Do not send packet-in msgs for port. */
  98
  99 static int hf_openflow_link_down = -1;    /* No physical link present. */
 100
 101 static int hf_openflow_10mb_hd = -1;      /* 10 Mb half-duplex rate support. */
 102 static int hf_openflow_10mb_fd = -1;      /* 10 Mb full-duplex rate support. */
 103 static int hf_openflow_100mb_hd = -1;     /* 100 Mb half-duplex rate support. */
 104 static int hf_openflow_100mb_fd = -1;     /* 100 Mb full-duplex rate support. */
 105 static int hf_openflow_1gb_hd = -1;       /* 1 Gb half-duplex rate support. */
 106 static int hf_openflow_1gb_fd = -1;       /* 1 Gb full-duplex rate support. */
 107 static int hf_openflow_10gb_fd = -1;      /* 10 Gb full-duplex rate support. */
 108 static int hf_openflow_copper = -1;       /* Copper medium. */
 109 static int hf_openflow_fiber = -1;        /* Fiber medium. */
 110 static int hf_openflow_autoneg = -1;      /* Auto-negotiation. */
 111 static int hf_openflow_pause = -1;        /* Pause. */
 112 static int hf_openflow_pause_asym = -1;   /* Asymmetric pause. */
 113
 114 static int hf_openflow_config_flags = -1;
 115 static int hf_openflow_miss_send_len = -1;
 116
 117 static int hf_openflow_buffer_id = -1;
 118 static int hf_openflow_total_len = -1;
 119 static int hf_openflow_in_port = -1;
 120 static int hf_openflow_reason = -1;
 121 static int hf_openflow_table_id = -1;
 122 static int hf_openflow_cookie = -1;
 123 static int hf_openflow_cookie_mask = -1;
 124 static int hf_openflow_padd8 = -1;
 125 static int hf_openflow_padd16 = -1;
 126 static int hf_openflow_padd48 = -1;
 127 static int hf_openflow_actions_len = -1;
 128 static int hf_openflow_action_type = -1;
 129 static int hf_openflow_action_len = -1;
 130 static int hf_openflow_output_port = -1;
 131 static int hf_openflow_max_len = -1;
 132 static int hf_openflow_wildcards = -1;
 133 static int hf_openflow_command = -1;
 134 static int hf_openflow_eth_src = -1;
 135 static int hf_openflow_eth_dst = -1;
 136 static int hf_openflow_dl_vlan = -1;
 137 static int hf_openflow_dl_vlan_pcp = -1;
 138 static int hf_openflow_idle_timeout = -1;
 139 static int hf_openflow_hard_timeout = -1;
 140 static int hf_openflow_priority = -1;
 141 static int hf_openflow_out_port = -1;
 142 static int hf_openflow_out_group = -1;
 143 static int hf_openflow_flags = -1;
 144
 145 /* Initialize the subtree pointers */
 146 static gint ett_openflow = -1;
 147 static gint ett_openflow_path_id = -1;
 148 static gint ett_openflow_cap = -1;
 149 static gint ett_openflow_act = -1;
 150 static gint ett_openflow_port = -1;
 151 static gint ett_openflow_port_cnf = -1;
 152 static gint ett_openflow_port_state = -1;
 153 static gint ett_openflow_port_cf = -1;
 154
 155 static const value_string openflow_version_values[] = {
 156     { 0x01, "1.0" },
 157     { 0, NULL }
 158 };
 159
 160
 161 /* Immutable messages. */
 162 #define OFPT_1_0_HELLO                     0 /* Symmetric message */
 163 #define OFPT_1_0_ERROR                     1 /* Symmetric message */
 164 #define OFPT_1_0_ECHO_REQUEST              2 /* Symmetric message */
 165 #define OFPT_1_0_ECHO_REPLY                3 /* Symmetric message */
 166 #define OFPT_1_0_VENDOR                    4 /* Symmetric message */
 167 /* Switch configuration messages. */
 168 #define OFPT_1_0_FEATURES_REQUEST          5 /* Controller/switch message */
 169 #define OFPT_1_0_FEATURES_REPLY            6 /* Controller/switch message */
 170 #define OFPT_1_0_GET_CONFIG_REQUEST        7 /* Controller/switch message */
 171 #define OFPT_1_0_GET_CONFIG_REPLY          8 /* Controller/switch message */
 172 #define OFPT_1_0_SET_CONFIG                9 /* Controller/switch message */
 173 /* Asynchronous messages. */
 174 #define OFPT_1_0_PACKET_IN                10 /* Async message */
 175 #define OFPT_1_0_FLOW_REMOVED             11 /* Async message */
 176 #define OFPT_1_0_PORT_STATUS              12 /* Async message */
 177 /* Controller command messages. */
 178 #define OFPT_1_0_PACKET_OUT               13 /* Controller/switch message */
 179 #define OFPT_1_0_FLOW_MOD                 14 /* Controller/switch message */
 180 #define OFPT_1_0_PORT_MOD                 15 /* Controller/switch message */
 181 /* Statistics messages. */
 182 #define OFPT_1_0_STATS_REQUEST            16 /* Controller/switch message */
 183 #define OFPT_1_0_STATS_REPLY              17 /* Controller/switch message */
 184 /* Barrier messages. */
 185 #define OFPT_1_0_BARRIER_REQUEST          18 /* Controller/switch message */
 186 #define OFPT_1_0_BARRIER_REPLY            19 /* Controller/switch message */
 187 /* Queue Configuration messages. */
 188 #define OFPT_1_0_QUEUE_GET_CONFIG_REQUEST 20 /* Controller/switch message */
 189 #define OFPT_1_0_QUEUE_GET_CONFIG_REPLY   21 /* Controller/switch message */
 190
 191
 192 static const value_string openflow_1_0_type_values[] = {
 193 /* Immutable messages. */
 194
 195 /* Immutable messages. */
 196     { 0, "OFPT_HELLO" },              /* Symmetric message */
 197     { 1, "OFPT_ERROR" },              /* Symmetric message */
 198     { 2, "OFPT_ECHO_REQUEST" },       /* Symmetric message */
 199     { 3, "OFPT_ECHO_REPLY" },         /* Symmetric message */
 200     { 4, "OFPT_VENDOR" },             /* Symmetric message */
 201 /* Switch configuration messages. */
 202     { 5, "OFPT_FEATURES_REQUEST" },   /* Controller/switch message */
 203     { 6, "OFPT_FEATURES_REPLY" },     /* Controller/switch message */
 204     { 7, "OFPT_GET_CONFIG_REQUEST" }, /* Controller/switch message */
 205     { 8, "OFPT_GET_CONFIG_REPLY" },   /* Controller/switch message */
 206     { 9, "OFPT_SET_CONFIG" },         /* Controller/switch message */
 207 /* Asynchronous messages. */
 208     { 10, "OFPT_PACKET_IN" },                /* Async message */
 209     { 11, "OFPT_FLOW_REMOVED" },             /* Async message */
 210     { 12, "OFPT_PORT_STATUS" },              /* Async message */
 211 /* Controller command messages. */
 212     { 13, "OFPT_PACKET_OUT" },               /* Controller/switch message */
 213     { 14, "OFPT_FLOW_MOD" },                 /* Controller/switch message */
 214     { 15, "OFPT_PORT_MOD" },                 /* Controller/switch message */
 215 /* Statistics messages. */
 216     { 16, "OFPT_STATS_REQUEST" },            /* Controller/switch message */
 217     { 17, "OFPT_STATS_REPLY" },              /* Controller/switch message */
 218 /* Barrier messages. */
 219     { 18, "OFPT_BARRIER_REQUEST" },          /* Controller/switch message */
 220     { 19, "OFPT_BARRIER_REPLY" },            /* Controller/switch message */
 221 /* Queue Configuration messages. */
 222     { 20, "OFPT_QUEUE_GET_CONFIG_REQUEST" }, /* Controller/switch message */
 223     { 21, "OFPT_QUEUE_GET_CONFIG_REPLY" },   /* Controller/switch message */
 224     { 0, NULL }
 225 };
 226
 227
 228 #define OFPC_FLOW_STATS   1<<0  /* Flow statistics. */
 229 #define OFPC_TABLE_STATS  1<<1  /* Table statistics. */
 230 #define OFPC_PORT_STATS   1<<2  /* Port statistics. */
 231 #define OFPC_GROUP_STATS  1<<3  /* Group statistics. */
 232 #define OFPC_IP_REASM     1<<5  /* Can reassemble IP fragments. */
 233 #define OFPC_QUEUE_STATS  1<<6  /* Queue statistics. */
 234 #define OFPC_PORT_BLOCKED 1<<8  /* Switch will block looping ports. */
 235
 236 #define OFPAT_OUTPUT_MASK       1<<0  /* Output to switch port. */
 237 #define OFPAT_SET_VLAN_VID_MASK 1<<1  /* Set the 802.1q VLAN id. */
 238 #define OFPAT_SET_VLAN_PCP_MASK 1<<2  /* Set the 802.1q priority. */
 239 #define OFPAT_STRIP_VLAN_MASK   1<<3  /* Strip the 802.1q header. */
 240 #define OFPAT_SET_DL_SRC_MASK   1<<4  /* Ethernet source address. */
 241 #define OFPAT_SET_DL_DST_MASK   1<<5  /* Ethernet destination address. */
 242 #define OFPAT_SET_NW_SRC_MASK   1<<6  /* IP source address. */
 243 #define OFPAT_SET_NW_DST_MASK   1<<7  /* IP destination address. */
 244 #define OFPAT_SET_NW_TOS_MASK   1<<8  /* IP ToS (DSCP field, 6 bits). */
 245 #define OFPAT_SET_TP_SRC_MASK   1<<9  /* TCP/UDP source port. */
 246 #define OFPAT_SET_TP_DST_MASK   1<<10 /* TCP/UDP destination port. */
 247 #define OFPAT_ENQUEUE_MASK      1<<11 /* Output to queue. */
 248
 249 #define OFPPC_PORT_DOWN    1<<0 /* Port is administratively down. */
 250 #define OFPPC_NO_STP       1<<1 /* Disable 802.1D spanning tree on port. */
 251 #define OFPPC_NO_RECV      1<<2 /* Drop all packets except 802.1D spanning tree packets. */
 252 #define OFPPC_NO_RECV_STP  1<<3 /* Drop received 802.1D STP packets. */
 253 #define OFPPC_NO_FLOOD     1<<4 /* Do not include this port when flooding. */
 254 #define OFPPC_NO_FWD       1<<5 /* Drop packets forwarded to port. */
 255 #define OFPPC_NO_PACKET_IN 1<<6 /* Do not send packet-in msgs for port. */
 256
 257 #define OFP_MAX_PORT_NAME_LEN 16
 258
 259 #define OFPPS_LINK_DOWN    1<<0 /* No physical link present. */
 260 #define OFPPS_STP_LISTEN   0<<8 /* Not learning or relaying frames. */
 261 #define OFPPS_STP_LEARN    1<<8 /* Learning but not relaying frames. */
 262 #define OFPPS_STP_FORWARD  2<<8 /* Learning and relaying frames. */
 263 #define OFPPS_STP_BLOCK    3<<8 /* Not part of spanning tree. */
 264 #define OFPPS_STP_MASK     3<<8 /* Bit mask for OFPPS_STP_* values. */
 265
 266
 267 #define OFPPF_10MB_HD      1<<0 /* 10 Mb half-duplex rate support. */
 268 #define OFPPF_10MB_FD      1<<1 /* 10 Mb full-duplex rate support. */
 269 #define OFPPF_100MB_HD     1<<2 /* 100 Mb half-duplex rate support. */
 270 #define OFPPF_100MB_FD     1<<3 /* 100 Mb full-duplex rate support. */
 271 #define OFPPF_1GB_HD       1<<4 /* 1 Gb half-duplex rate support. */
 272 #define OFPPF_1GB_FD       1<<5 /* 1 Gb full-duplex rate support. */
 273 #define OFPPF_10GB_FD      1<<6 /* 10 Gb full-duplex rate support. */
 274 #define OFPPF_COPPER       1<<7 /* Copper medium. */
 275 #define OFPPF_FIBER        1<<8 /* Fiber medium. */
 276 #define OFPPF_AUTONEG      1<<9 /* Auto-negotiation. */
 277 #define OFPPF_PAUSE        1<<10 /* Pause. */
 278 #define OFPPF_PAUSE_ASYM   1<<11 /* Asymmetric pause. */
 279
 280
 281 #define OFPAT_OUTPUT         0 /* Output to switch port. */
 282 #define OFPAT_SET_VLAN_VID   1 /* Set the 802.1q VLAN id. */
 283 #define OFPAT_SET_VLAN_PCP   2 /* Set the 802.1q priority. */
 284 #define OFPAT_STRIP_VLAN     3 /* Strip the 802.1q header. */
 285 #define OFPAT_SET_DL_SRC     4 /* Ethernet source address. */
 286 #define OFPAT_SET_DL_DST     5 /* Ethernet destination address. */
 287 #define OFPAT_SET_NW_SRC     6 /* IP source address. */
 288 #define OFPAT_SET_NW_DST     7 /* IP destination address. */
 289 #define OFPAT_SET_TP_SRC     8 /* TCP/UDP source port. */
 290 #define OFPAT_SET_TP_DST     9 /* TCP/UDP destination port. */
 291 #define OFPAT_VENDOR         0xffff
 292
 293 static int
 294 dissect_openflow_ofp_match_v1(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 295 {
 296
 297     /* uint32_t wildcards; Wildcard fields. */
 298     proto_tree_add_item(tree, hf_openflow_wildcards, tvb, offset, 4, ENC_BIG_ENDIAN);
 299     offset+=4;
 300     /* uint16_t in_port; Input switch port. */
 301     proto_tree_add_item(tree, hf_openflow_in_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 302     offset+=2;
 303
 304     /* uint8_t dl_src[OFP_ETH_ALEN];  Ethernet source address. */
 305     proto_tree_add_item(tree, hf_openflow_eth_src, tvb, offset, 6, ENC_NA);
 306     offset+=6;
 307     /* uint8_t dl_dst[OFP_ETH_ALEN]; Ethernet destination address. */
 308     proto_tree_add_item(tree, hf_openflow_eth_dst, tvb, offset, 6, ENC_NA);
 309     offset+=6;
 310     /* uint16_t dl_vlan; Input VLAN id. */
 311     proto_tree_add_item(tree, hf_openflow_dl_vlan, tvb, offset, 2, ENC_BIG_ENDIAN);
 312     offset+=2;
 313     /* uint8_t dl_vlan_pcp; Input VLAN priority. */
 314     proto_tree_add_item(tree, hf_openflow_dl_vlan_pcp, tvb, offset, 1, ENC_BIG_ENDIAN);
 315     offset++;
 316     /* uint8_t pad1[1]; Align to 64-bits */
 317     proto_tree_add_item(tree, hf_openflow_padd8, tvb, offset, 1, ENC_BIG_ENDIAN);
 318     offset++;
 319     /* uint16_t dl_type; Ethernet frame type. */
 320     /* uint8_t nw_tos; IP ToS (actually DSCP field, 6 bits). */
 321     /* uint8_t nw_proto; IP protocol or lower 8 bits of
 322      * ARP opcode.
 323      */
 324     /* uint8_t pad2[2]; Align to 64-bits */
 325     /* uint32_t nw_src; IP source address. */
 326     /* uint32_t nw_dst; IP destination address. */
 327     /* uint16_t tp_src; TCP/UDP source port. */
 328     /* uint16_t tp_dst; TCP/UDP destination port. */
 329     proto_tree_add_text(tree, tvb, offset, 18, "Data not dissected yet");
 330     offset +=18;
 331
 332     return offset;
 333 }
 334
 335
 336 static const value_string openflow_action_values[] = {
 337     { OFPAT_OUTPUT,          "Output to switch port" },
 338     { OFPAT_SET_VLAN_VID,    "Set the 802.1q VLAN id" },
 339     { OFPAT_SET_VLAN_PCP,    "Set the 802.1q priority" },
 340     { OFPAT_STRIP_VLAN,      "Strip the 802.1q header" },
 341     { OFPAT_SET_DL_SRC,      "Ethernet source address" },
 342     { OFPAT_SET_DL_DST,      "Ethernet destination address" },
 343     { OFPAT_SET_NW_SRC,      "IP source address" },
 344     { OFPAT_SET_NW_DST,      "IP destination address" },
 345     { OFPAT_SET_TP_SRC,      "TCP/UDP source port" },
 346     { OFPAT_SET_TP_DST,      "TCP/UDP destination port" },
 347     { OFPAT_VENDOR,          "Vendor specific action"},
 348     { 0, NULL }
 349 };
 350
 351 static int
 352 dissect_openflow_action_header(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 353 {
 354     guint16 action_type, action_len;
 355
 356     /* uint16_t type;  One of OFPAT_*. */
 357     action_type = tvb_get_ntohs(tvb, offset);
 358     proto_tree_add_item(tree, hf_openflow_action_type, tvb, offset, 2, ENC_BIG_ENDIAN);
 359     offset+=2;
 360     /* Length of action, including this
 361      * header. This is the length of action,
 362      * including any padding to make it
 363      * 64-bit aligned.
 364      */
 365     action_len = tvb_get_ntohs(tvb, offset);
 366     proto_tree_add_item(tree, hf_openflow_action_len, tvb, offset, 2, ENC_BIG_ENDIAN);
 367     offset+=2;
 368
 369     switch(action_type){
 370     case OFPAT_OUTPUT:
 371         /* uint16_t port;  Output port. */
 372         proto_tree_add_item(tree, hf_openflow_output_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 373         offset+=2;
 374         /* uint16_t max_len;  Max length to send to controller. */
 375         proto_tree_add_item(tree, hf_openflow_max_len, tvb, offset, 2, ENC_BIG_ENDIAN);
 376         offset+=2;
 377         break;
 378     default:
 379         proto_tree_add_text(tree, tvb, offset, action_len-4, "Action not dissected yet");
 380         offset+=(action_len-4);
 381         break;
 382     }
 383
 384     return offset;
 385 }
 386 static void
 387 dissect_openflow_phy_port(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 388 {
 389     proto_item *ti;
 390     proto_tree *port_cnf_tree, *port_state_tree, *port_cf_tree;
 391
 392     proto_tree_add_item(tree, hf_openflow_port_no, tvb, offset, 2, ENC_BIG_ENDIAN);
 393     offset+=2;
 394     proto_tree_add_item(tree, hf_openflow_hw_addr, tvb, offset, 6, ENC_NA);
 395     offset+=6;
 396     proto_tree_add_item(tree, hf_openflow_port_name, tvb, offset, OFP_MAX_PORT_NAME_LEN, ENC_ASCII|ENC_NA);
 397     offset+=OFP_MAX_PORT_NAME_LEN;
 398
 399     /* Bitmap of OFPPC_* flags. */
 400     ti = proto_tree_add_item(tree, hf_openflow_port_config, tvb, offset, 4, ENC_BIG_ENDIAN);
 401     port_cnf_tree = proto_item_add_subtree(ti, ett_openflow_port_cnf);
 402
 403     /* Port is administratively down. */
 404     proto_tree_add_item(port_cnf_tree, hf_openflow_port_down, tvb, offset, 4, ENC_BIG_ENDIAN);
 405     /* Disable 802.1D spanning tree on port. */
 406     proto_tree_add_item(port_cnf_tree, hf_openflow_no_stp, tvb, offset, 4, ENC_BIG_ENDIAN);
 407     /* Drop all packets except 802.1D spanning tree packets. */
 408     proto_tree_add_item(port_cnf_tree, hf_openflow_no_recv, tvb, offset, 4, ENC_BIG_ENDIAN);
 409     /* Drop received 802.1D STP packets. */
 410     proto_tree_add_item(port_cnf_tree, hf_openflow_no_recv_stp, tvb, offset, 4, ENC_BIG_ENDIAN);
 411     /* Do not include this port when flooding. */
 412     proto_tree_add_item(port_cnf_tree, hf_openflow_no_flood, tvb, offset, 4, ENC_BIG_ENDIAN);
 413      /* Drop packets forwarded to port. */
 414     proto_tree_add_item(port_cnf_tree, hf_openflow_no_fwd, tvb, offset, 4, ENC_BIG_ENDIAN);
 415     /* Do not send packet-in msgs for port. */
 416     proto_tree_add_item(port_cnf_tree, hf_openflow_no_packet_in, tvb, offset, 4, ENC_BIG_ENDIAN);
 417     offset+=4;
 418
 419     /* Bitmap of OFPPS_* flags. */
 420     ti = proto_tree_add_item(tree, hf_openflow_port_state, tvb, offset, 4, ENC_BIG_ENDIAN);
 421     port_state_tree = proto_item_add_subtree(ti, ett_openflow_port_state);
 422
 423     /* No physical link present. */
 424     proto_tree_add_item(port_state_tree, hf_openflow_link_down, tvb, offset, 4, ENC_BIG_ENDIAN);
 425
 426     offset+=4;
 427
 428     /* Current features. */
 429     ti = proto_tree_add_item(tree, hf_openflow_port_curr, tvb, offset, 4, ENC_BIG_ENDIAN);
 430     port_cf_tree = proto_item_add_subtree(ti, ett_openflow_port_cf);
 431     /* 10 Mb half-duplex rate support. */
 432     proto_tree_add_item(port_cf_tree, hf_openflow_10mb_hd, tvb, offset, 4, ENC_BIG_ENDIAN);
 433     /* 10 Mb full-duplex rate support. */
 434     proto_tree_add_item(port_cf_tree, hf_openflow_10mb_fd, tvb, offset, 4, ENC_BIG_ENDIAN);
 435     /* 100 Mb half-duplex rate support. */
 436     proto_tree_add_item(port_cf_tree, hf_openflow_100mb_hd, tvb, offset, 4, ENC_BIG_ENDIAN);
 437     /* 100 Mb full-duplex rate support. */
 438     proto_tree_add_item(port_cf_tree, hf_openflow_100mb_fd, tvb, offset, 4, ENC_BIG_ENDIAN);
 439     /* 1 Gb half-duplex rate support. */
 440     proto_tree_add_item(port_cf_tree, hf_openflow_1gb_hd, tvb, offset, 4, ENC_BIG_ENDIAN);
 441     /* 1 Gb full-duplex rate support. */
 442     proto_tree_add_item(port_cf_tree, hf_openflow_1gb_fd, tvb, offset, 4, ENC_BIG_ENDIAN);
 443     /* 10 Gb full-duplex rate support. */
 444     proto_tree_add_item(port_cf_tree, hf_openflow_10gb_fd, tvb, offset, 4, ENC_BIG_ENDIAN);
 445     /* Copper medium. */
 446     proto_tree_add_item(port_cf_tree, hf_openflow_copper, tvb, offset, 4, ENC_BIG_ENDIAN);
 447     /* Fiber medium. */
 448     proto_tree_add_item(port_cf_tree, hf_openflow_fiber, tvb, offset, 4, ENC_BIG_ENDIAN);
 449     /* Auto-negotiation. */
 450     proto_tree_add_item(port_cf_tree, hf_openflow_autoneg, tvb, offset, 4, ENC_BIG_ENDIAN);
 451     /* Pause. */
 452     proto_tree_add_item(port_cf_tree, hf_openflow_pause, tvb, offset, 4, ENC_BIG_ENDIAN);
 453     /* Asymmetric pause. */
 454     proto_tree_add_item(port_cf_tree, hf_openflow_pause_asym, tvb, offset, 4, ENC_BIG_ENDIAN);
 455     offset+=4;
 456
 457     /* Features being advertised by the port. */
 458     proto_tree_add_item(tree, hf_openflow_port_advertised, tvb, offset, 4, ENC_BIG_ENDIAN);
 459     offset+=4;
 460
 461     /* Features supported by the port. */
 462     proto_tree_add_item(tree, hf_openflow_port_supported, tvb, offset, 4, ENC_BIG_ENDIAN);
 463     offset+=4;
 464     /* Features advertised by peer. */
 465     proto_tree_add_item(tree, hf_openflow_port_peer, tvb, offset, 4, ENC_BIG_ENDIAN);
 466
 467
 468 }
 469
 470 #if 0
 471 /*
 472  * Switch features.
 473  */
 474
 475 struct ofp_switch_features {
 476     struct ofp_header   header;
 477     uint64_t            datapath_id;  /* Datapath unique ID. The lower 48-bits are for
 478                                          a MAC address, while the upper 16-bits are
 479                                          implementer-defined. */
 480     uint32_t            n_buffers;    /* Max packets buffered at once. */
 481     uint8_t             n_tables;     /* Number of tables supported by datapath. */
 482     uint8_t             pad[3];       /* Align to 64-bits. */
 483     /* Features. */
 484     uint32_t            capabilities; /* Bitmap of support "ofp_capabilities". */
 485     uint32_t            actions;      /* Bitmap of supported "ofp_action_type"s. */
 486     /* Port info.*/
 487     struct ofp_phy_port ports[0];     /* Port definitions. The number of ports
 488                                          is inferred from the length field in
 489                                          the header. */
 490 #endif
 491
 492 static void
 493 dissect_openflow_features_reply_v1(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 length)
 494 {
 495     proto_item *ti;
 496     proto_tree *path_id_tree, *cap_tree, *act_tree;
 497
 498     guint16 length_remaining;
 499
 500     ti = proto_tree_add_item(tree, hf_openflow_datapath_id, tvb, offset, 8, ENC_BIG_ENDIAN);
 501     path_id_tree = proto_item_add_subtree(ti, ett_openflow_path_id);
 502     proto_tree_add_item(path_id_tree, hf_openflow_datapath_mac, tvb, offset, 6, ENC_NA);
 503     offset+=6;
 504     proto_tree_add_item(path_id_tree, hf_openflow_datapath_impl, tvb, offset, 2, ENC_BIG_ENDIAN);
 505     offset+=2;
 506
 507     proto_tree_add_item(tree, hf_openflow_n_buffers, tvb, offset, 4, ENC_BIG_ENDIAN);
 508     offset+=4;
 509
 510     proto_tree_add_item(tree, hf_openflow_n_tables, tvb, offset, 1, ENC_BIG_ENDIAN);
 511     offset++;
 512
 513     ti = proto_tree_add_item(tree, hf_openflow_capabilities, tvb, offset, 4, ENC_BIG_ENDIAN);
 514     cap_tree = proto_item_add_subtree(ti, ett_openflow_cap);
 515
 516     /* Dissect flags */
 517     proto_tree_add_item(cap_tree, hf_openflow_cap_flow_stats, tvb, offset, 4, ENC_BIG_ENDIAN);
 518     proto_tree_add_item(cap_tree, hf_openflow_table_stats,    tvb, offset, 4, ENC_BIG_ENDIAN);
 519     proto_tree_add_item(cap_tree, hf_openflow_port_stats,     tvb, offset, 4, ENC_BIG_ENDIAN);
 520     proto_tree_add_item(cap_tree, hf_openflow_group_stats,    tvb, offset, 4, ENC_BIG_ENDIAN);
 521     proto_tree_add_item(cap_tree, hf_openflow_ip_reasm,       tvb, offset, 4, ENC_BIG_ENDIAN);
 522     proto_tree_add_item(cap_tree, hf_openflow_queue_stats,    tvb, offset, 4, ENC_BIG_ENDIAN);
 523     proto_tree_add_item(cap_tree, hf_openflow_port_blocked,   tvb, offset, 4, ENC_BIG_ENDIAN);
 524     offset+=4;
 525
 526     ti = proto_tree_add_item(tree, hf_openflow_actions, tvb, offset, 4, ENC_BIG_ENDIAN);
 527     act_tree = proto_item_add_subtree(ti, ett_openflow_act);
 528     /* Dissect flags */
 529     proto_tree_add_item(act_tree, hf_openflow_output, tvb, offset, 4, ENC_BIG_ENDIAN);
 530     proto_tree_add_item(act_tree, hf_openflow_set_vlan_vid, tvb, offset, 4, ENC_BIG_ENDIAN);
 531     proto_tree_add_item(act_tree, hf_openflow_set_vlan_pcp, tvb, offset, 4, ENC_BIG_ENDIAN);
 532     proto_tree_add_item(act_tree, hf_openflow_strip_vlan, tvb, offset, 4, ENC_BIG_ENDIAN);
 533     proto_tree_add_item(act_tree, hf_openflow_set_dl_src, tvb, offset, 4, ENC_BIG_ENDIAN);
 534     proto_tree_add_item(act_tree, hf_openflow_set_dl_dst, tvb, offset, 4, ENC_BIG_ENDIAN);
 535     proto_tree_add_item(act_tree, hf_openflow_set_nw_src, tvb, offset, 4, ENC_BIG_ENDIAN);
 536     proto_tree_add_item(act_tree, hf_openflow_set_nw_dst, tvb, offset, 4, ENC_BIG_ENDIAN);
 537     proto_tree_add_item(act_tree, hf_openflow_set_nw_tos, tvb, offset, 4, ENC_BIG_ENDIAN);
 538     proto_tree_add_item(act_tree, hf_openflow_set_tp_src, tvb, offset, 4, ENC_BIG_ENDIAN);
 539     proto_tree_add_item(act_tree, hf_openflow_set_tp_dst, tvb, offset, 4, ENC_BIG_ENDIAN);
 540     proto_tree_add_item(act_tree, hf_openflow_enqueue, tvb, offset, 4, ENC_BIG_ENDIAN);
 541     offset+=4;
 542
 543     length_remaining = length-32;
 544     if(length_remaining > 0){
 545         guint16 num_ports = length_remaining/48;
 546         int i;
 547         if ((length_remaining&0x003f) != 0){
 548             /* protocol_error */
 549         }
 550         for(i=0; i<num_ports ;i++){
 551             proto_tree *port_tree;
 552
 553             ti = proto_tree_add_text(tree, tvb, offset, 48, "Port data %u",i+1);
 554             port_tree = proto_item_add_subtree(ti, ett_openflow_port);
 555             dissect_openflow_phy_port(tvb, pinfo, port_tree, offset);
 556             offset+=48;
 557         }
 558     }
 559
 560 }
 561
 562
 563 static void
 564 dissect_openflow_switch_config(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 length _U_)
 565 {
 566
 567     /* ofp_config_flags */
 568     proto_tree_add_item(tree, hf_openflow_config_flags, tvb, offset, 2, ENC_BIG_ENDIAN);
 569     offset+=2;
 570     /* miss_send_len */
 571     proto_tree_add_item(tree, hf_openflow_miss_send_len, tvb, offset, 2, ENC_BIG_ENDIAN);
 572     /*offset+=2;*/
 573
 574 }
 575
 576 #define OFPR_NO_MATCH       0        /* No matching flow (table-miss flow entry). */
 577 #define OFPR_ACTION         1        /* Action explicitly output to controller. */
 578 #define OFPR_INVALID_TTL    2        /* Packet has invalid TTL */
 579
 580 static const value_string openflow_reason_values[] = {
 581     { OFPR_NO_MATCH,    "No matching flow (table-miss flow entry)" },
 582     { OFPR_ACTION,      "Action explicitly output to controller" },
 583     { OFPR_INVALID_TTL, "Packet has invalid TTL" },
 584     { 0, NULL }
 585 };
 586
 587 static void
 588 dissect_openflow_pkt_in(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 length)
 589 {
 590     tvbuff_t *next_tvb;
 591
 592     /* uint32_t buffer_id;  ID assigned by datapath. */
 593     proto_tree_add_item(tree, hf_openflow_buffer_id, tvb, offset, 4, ENC_BIG_ENDIAN);
 594     offset+=4;
 595     /* uint16_t total_len;  Full length of frame. */
 596     proto_tree_add_item(tree, hf_openflow_total_len, tvb, offset, 2, ENC_BIG_ENDIAN);
 597     offset+=2;
 598
 599     /* uint16_t in_port;  Port on which frame was received. */
 600     proto_tree_add_item(tree, hf_openflow_in_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 601     offset+=2;
 602
 603     /* uint8_t reason; Reason packet is being sent (one of OFPR_*) */
 604     proto_tree_add_item(tree, hf_openflow_reason, tvb, offset, 1, ENC_BIG_ENDIAN);
 605     offset++;
 606
 607     proto_tree_add_item(tree, hf_openflow_padd8, tvb, offset, 1, ENC_BIG_ENDIAN);
 608     offset+=1;
 609
 610     /*proto_tree_add_text(tree, tvb, offset, length-offset, "Offset=%u, remaining %u", offset, length-offset);*/
 611     next_tvb = tvb_new_subset(tvb, offset, length-offset, length-offset);
 612     call_dissector(eth_withoutfcs_handle, next_tvb, pinfo, tree);
 613
 614 }
 615
 616 static void
 617 dissect_openflow_pkt_out(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 length _U_)
 618 {
 619     tvbuff_t *next_tvb;
 620     gint32 buffer_id;
 621
 622     /* uint32_t buffer_id;  ID assigned by datapath. */
 623     buffer_id = tvb_get_ntohl(tvb, offset);
 624     proto_tree_add_item(tree, hf_openflow_buffer_id, tvb, offset, 4, ENC_BIG_ENDIAN);
 625     offset+=4;
 626
 627     /* uint32_t in_port; Packet's input port or OFPP_CONTROLLER. */
 628     proto_tree_add_item(tree, hf_openflow_in_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 629     offset+=2;
 630
 631     /* uint16_t actions_len;  Size of action array in bytes. */
 632     proto_tree_add_item(tree, hf_openflow_actions_len, tvb, offset, 2, ENC_BIG_ENDIAN);
 633     offset+=2;
 634
 635     /* struct ofp_action_header actions[0];  Action list. */
 636     offset = dissect_openflow_action_header(tvb, pinfo, tree, offset);
 637     /* Packet data. The length is inferred
 638        from the length field in the header.
 639        (Only meaningful if buffer_id == -1.)
 640      */
 641     if(buffer_id == -1){
 642         /* proto_tree_add_text(tree, tvb, offset, -1, "Packet data"); */
 643         next_tvb = tvb_new_subset(tvb, offset, length-offset, length-offset);
 644         call_dissector(eth_withoutfcs_handle, next_tvb, pinfo, tree);
 645     }
 646 }
 647
 648 #define OFPFC_ADD             0 /* New flow. */
 649 #define OFPFC_MODIFY          1 /* Modify all matching flows. */
 650 #define OFPFC_MODIFY_STRICT   2 /* Modify entry strictly matching wildcards */
 651 #define OFPFC_DELETE          3 /* Delete all matching flows. */
 652 #define OFPFC_DELETE_STRICT   4 /* Strictly match wildcards and priority. */
 653
 654 static const value_string openflow_command_values[] = {
 655     { OFPFC_ADD,            "New flow" },
 656     { OFPFC_MODIFY,         "Modify all matching flows" },
 657     { OFPFC_MODIFY_STRICT,  "Modify entry strictly matching wildcards" },
 658     { OFPFC_DELETE,         "Delete all matching flows" },
 659     { OFPFC_DELETE_STRICT,  "Strictly match wildcards and priority" },
 660     { 0, NULL }
 661 };
 662
 663 static void
 664 dissect_openflow_flow_mod(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 length _U_)
 665 {
 666
 667     /* struct ofp_match match;  Fields to match */
 668     offset = dissect_openflow_ofp_match_v1(tvb, pinfo, tree, offset);
 669
 670     /* uint64_t cookie; Opaque controller-issued identifier. */
 671     proto_tree_add_item(tree, hf_openflow_cookie, tvb, offset, 8, ENC_BIG_ENDIAN);
 672     offset+=8;
 673
 674     /* uint16_t command;  One of OFPFC_*. */
 675     proto_tree_add_item(tree, hf_openflow_command, tvb, offset, 2, ENC_BIG_ENDIAN);
 676     offset+=2;
 677
 678     /* uint16_t idle_timeout;  Idle time before discarding (seconds). */
 679     proto_tree_add_item(tree, hf_openflow_idle_timeout, tvb, offset, 2, ENC_BIG_ENDIAN);
 680     offset+=2;
 681     /* uint16_t hard_timeout; Max time before discarding (seconds). */
 682     proto_tree_add_item(tree, hf_openflow_hard_timeout, tvb, offset, 2, ENC_BIG_ENDIAN);
 683     offset+=2;
 684     /* uint16_t priority; Priority level of flow entry. */
 685     proto_tree_add_item(tree, hf_openflow_priority, tvb, offset, 2, ENC_BIG_ENDIAN);
 686     offset+=2;
 687     /* uint32_t buffer_id;  Buffered packet to apply to, or OFP_NO_BUFFER.
 688        Not meaningful for OFPFC_DELETE*.
 689      */
 690     proto_tree_add_item(tree, hf_openflow_buffer_id, tvb, offset, 4, ENC_BIG_ENDIAN);
 691     offset+=4;
 692     /* uint32_t out_port; For OFPFC_DELETE* commands, require
 693        matching entries to include this as an output port. A value of OFPP_ANY
 694        indicates no restriction.
 695        */
 696     proto_tree_add_item(tree, hf_openflow_out_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 697     offset+=2;
 698
 699     /* uint16_t flags; One of OFPFF_*. */
 700     proto_tree_add_item(tree, hf_openflow_flags, tvb, offset, 2, ENC_BIG_ENDIAN);
 701     /*offset+=2;*/
 702 }
 703
 704 static int
 705 dissect_openflow_v1(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
 706 {
 707     proto_item *ti;
 708     proto_tree *openflow_tree;
 709     guint offset = 0;
 710     guint8 type;
 711     guint16 length;
 712
 713     type    = tvb_get_guint8(tvb, 1);
 714
 715     col_append_fstr(pinfo->cinfo, COL_INFO, "Type: %s",
 716                   val_to_str_const(type, openflow_1_0_type_values, "Unknown Messagetype"));
 717
 718     /* Stop the Ethernet frame from overwriting the columns */
 719     if((type == OFPT_1_0_PACKET_IN) || (type == OFPT_1_0_PACKET_OUT)){
 720         col_set_writable(pinfo->cinfo, FALSE);
 721     }
 722
 723     /* Create display subtree for the protocol */
 724     ti = proto_tree_add_item(tree, proto_openflow_v1, tvb, 0, -1, ENC_NA);
 725     openflow_tree = proto_item_add_subtree(ti, ett_openflow);
 726
 727     /* A.1 OpenFlow Header. */
 728     /* OFP_VERSION. */
 729     proto_tree_add_item(openflow_tree, hf_openflow_version, tvb, offset, 1, ENC_BIG_ENDIAN);
 730     offset++;
 731
 732     /* One of the OFPT_ constants. */
 733     proto_tree_add_item(openflow_tree, hf_openflow_1_0_type, tvb, offset, 1, ENC_BIG_ENDIAN);
 734     offset++;
 735
 736     /* Length including this ofp_header. */
 737     length = tvb_get_ntohs(tvb, offset);
 738     proto_tree_add_item(openflow_tree, hf_openflow_length, tvb, offset, 2, ENC_BIG_ENDIAN);
 739     offset+=2;
 740
 741     /* Transaction id associated with this packet. Replies use the same id as was in the request
 742      * to facilitate pairing.
 743      */
 744     proto_tree_add_item(openflow_tree, hf_openflow_xid, tvb, offset, 4, ENC_BIG_ENDIAN);
 745     offset+=4;
 746
 747     switch(type){
 748     case OFPT_1_0_HELLO: /* 0 */
 749         /* 5.5.1 Hello
 750          * The OFPT_HELLO message has no body;
 751          */
 752         break;
 753     case OFPT_1_0_FEATURES_REQUEST: /* 5 */
 754         /* 5.3.1 Handshake
 755          * Upon TLS session establishment, the controller sends an OFPT_FEATURES_REQUEST
 756          * message. This message does not contain a body beyond the OpenFlow header.
 757          */
 758         break;
 759     case OFPT_1_0_FEATURES_REPLY: /* 6 */
 760         dissect_openflow_features_reply_v1(tvb, pinfo, openflow_tree, offset, length);
 761         break;
 762     case OFPT_1_0_GET_CONFIG_REQUEST: /* 7 */
 763         /* A.3.2 There is no body for OFPT_GET_CONFIG_REQUEST beyond the OpenFlow header. */
 764         break;
 765     case OFPT_1_0_GET_CONFIG_REPLY: /* 8 */
 766         /* Fall trough */
 767     case OFPT_1_0_SET_CONFIG: /* 9 */
 768         dissect_openflow_switch_config(tvb, pinfo, openflow_tree, offset, length);
 769         break;
 770     case OFPT_1_0_PACKET_IN: /* 10 */
 771         dissect_openflow_pkt_in(tvb, pinfo, openflow_tree, offset, length);
 772         break;
 773     case OFPT_1_0_PACKET_OUT: /* 13 */
 774         dissect_openflow_pkt_out(tvb, pinfo, openflow_tree, offset, length);
 775         break;
 776     case OFPT_1_0_FLOW_MOD: /* 14 */
 777         dissect_openflow_flow_mod(tvb, pinfo, openflow_tree, offset, length);
 778         break;
 779     default:
 780         if(length>8){
 781             proto_tree_add_text(tree, tvb, offset, -1, "Message data not dissected yet");
 782         }
 783         break;
 784     }
 785
 786     return tvb_length(tvb);
 787
 788 }
 789
 790
 791 /*
 792  * Register the protocol with Wireshark.
 793  */
 794 void
 795 proto_register_openflow_v1(void)
 796 {
 797     static hf_register_info hf[] = {
 798         { &hf_openflow_version,
 799             { "Version", "openflow.version",
 800                FT_UINT8, BASE_HEX, VALS(openflow_version_values), 0x7f,
 801                NULL, HFILL }
 802         },
 803         { &hf_openflow_1_0_type,
 804             { "Type", "openflow_1_0.type",
 805                FT_UINT8, BASE_DEC, VALS(openflow_1_0_type_values), 0x0,
 806                NULL, HFILL }
 807         },
 808         { &hf_openflow_xid,
 809             { "Transaction ID", "openflow.xid",
 810                FT_UINT32, BASE_DEC, NULL, 0x0,
 811                NULL, HFILL }
 812         },
 813         { &hf_openflow_length,
 814             { "Length", "openflow.length",
 815                FT_UINT16, BASE_DEC, NULL, 0x0,
 816                NULL, HFILL }
 817         },
 818         { &hf_openflow_datapath_id,
 819             { "Datapath unique ID", "openflow.datapath_id",
 820                FT_UINT64, BASE_HEX, NULL, 0x0,
 821                NULL, HFILL }
 822         },
 823         { &hf_openflow_datapath_mac,
 824             { "MAC addr", "openflow.datapath_mac",
 825                FT_ETHER, BASE_NONE, NULL, 0x0,
 826                NULL, HFILL }
 827         },
 828         { &hf_openflow_datapath_impl,
 829             { "Implementers part", "openflow.datapath_imp",
 830                FT_UINT16, BASE_HEX, NULL, 0x0,
 831                NULL, HFILL }
 832         },
 833         { &hf_openflow_n_buffers,
 834             { "n_buffers", "openflow.n_buffers",
 835                FT_UINT32, BASE_DEC, NULL, 0x0,
 836                NULL, HFILL }
 837         },
 838         { &hf_openflow_n_tables,
 839             { "n_tables", "openflow.n_tables",
 840                FT_UINT8, BASE_DEC, NULL, 0x0,
 841                NULL, HFILL }
 842         },
 843         { &hf_openflow_auxiliary_id,
 844             { "auxiliary_id", "openflow.auxiliary_id",
 845                FT_UINT8, BASE_DEC, NULL, 0x0,
 846                NULL, HFILL }
 847         },
 848         { &hf_openflow_pad3,
 849             { "Padding", "openflow.pad3",
 850                FT_UINT24, BASE_DEC, NULL, 0x0,
 851                NULL, HFILL }
 852         },
 853         { &hf_openflow_capabilities,
 854             { "capabilities", "openflow.capabilities",
 855                FT_UINT32, BASE_HEX, NULL, 0x0,
 856                NULL, HFILL }
 857         },
 858         { &hf_openflow_actions,
 859             { "actions", "openflow.actions",
 860                FT_UINT32, BASE_HEX, NULL, 0x0,
 861                NULL, HFILL }
 862         },
 863         { &hf_openflow_reserved32,
 864             { "Reserved", "openflow.reserved32",
 865                FT_UINT32, BASE_DEC, NULL, 0x0,
 866                NULL, HFILL }
 867         },
 868         { &hf_openflow_cap_flow_stats,
 869             { "Flow statistics", "openflow.flow_stats",
 870                FT_BOOLEAN, 32, NULL, OFPC_FLOW_STATS,
 871                NULL, HFILL }
 872         },
 873         { &hf_openflow_table_stats,
 874             { "Table statistics", "openflow.table_stats",
 875                FT_BOOLEAN, 32, NULL, OFPC_TABLE_STATS,
 876                NULL, HFILL }
 877         },
 878         { &hf_openflow_port_stats,
 879             { "Port statistics", "openflow.port_stats",
 880                FT_BOOLEAN, 32, NULL,  OFPC_PORT_STATS,
 881                NULL, HFILL }
 882         },
 883         { &hf_openflow_group_stats,
 884             { "Group statistics", "openflow.group_stats",
 885                FT_BOOLEAN, 32, NULL, OFPC_GROUP_STATS,
 886                NULL, HFILL }
 887         },
 888         { &hf_openflow_ip_reasm,
 889             { "Can reassemble IP fragments", "openflow.ip_reasm",
 890                FT_BOOLEAN, 32, NULL, OFPC_IP_REASM,
 891                NULL, HFILL }
 892         },
 893         { &hf_openflow_queue_stats,
 894             { "Queue statistics", "openflow.queue_stats",
 895                FT_BOOLEAN, 32, NULL, OFPC_QUEUE_STATS,
 896                NULL, HFILL }
 897         },
 898         { &hf_openflow_port_blocked,
 899             { "Switch will block looping ports", "openflow.port_blocked",
 900                FT_BOOLEAN, 32, NULL, OFPC_PORT_BLOCKED,
 901                NULL, HFILL }
 902         },
 903         { &hf_openflow_output,
 904             { "Output to switch port", "openflow.output",
 905                FT_BOOLEAN, 32, NULL, OFPAT_OUTPUT_MASK,
 906                NULL, HFILL }
 907         },
 908         { &hf_openflow_set_vlan_vid,
 909             { "Set the 802.1q VLAN id", "openflow.set_vlan_vid",
 910                FT_BOOLEAN, 32, NULL, OFPAT_SET_VLAN_VID_MASK,
 911                NULL, HFILL }
 912         },
 913         { &hf_openflow_set_vlan_pcp,
 914             { "Set the 802.1q priority", "openflow.set_vlan_pcp",
 915                FT_BOOLEAN, 32, NULL, OFPAT_SET_VLAN_PCP_MASK,
 916                NULL, HFILL }
 917         },
 918         { &hf_openflow_strip_vlan,
 919             { "Strip the 802.1q header", "openflow.strip_vlan",
 920                FT_BOOLEAN, 32, NULL, OFPAT_STRIP_VLAN_MASK,
 921                NULL, HFILL }
 922         },
 923         { &hf_openflow_set_dl_src,
 924             { "Ethernet source address", "openflow.set_dl_src",
 925                FT_BOOLEAN, 32, NULL, OFPAT_SET_DL_SRC_MASK,
 926                NULL, HFILL }
 927         },
 928         { &hf_openflow_set_dl_dst,
 929             { "Ethernet destination address", "openflow.set_dl_ds",
 930                FT_BOOLEAN, 32, NULL, OFPAT_SET_DL_DST_MASK,
 931                NULL, HFILL }
 932         },
 933         { &hf_openflow_set_nw_src,
 934             { "IP source address", "openflow.set_nw_src",
 935                FT_BOOLEAN, 32, NULL, OFPAT_SET_NW_SRC_MASK,
 936                NULL, HFILL }
 937         },
 938         { &hf_openflow_set_nw_dst,
 939             { "IP destination address", "openflow.set_nw_ds",
 940                FT_BOOLEAN, 32, NULL, OFPAT_SET_NW_DST_MASK,
 941                NULL, HFILL }
 942         },
 943         { &hf_openflow_set_nw_tos,
 944             { "IP ToS (DSCP field, 6 bits)", "openflow.set_nw_tos",
 945                FT_BOOLEAN, 32, NULL, OFPAT_SET_NW_TOS_MASK,
 946                NULL, HFILL }
 947         },
 948         { &hf_openflow_set_tp_src,
 949             { "TCP/UDP source port", "openflow.set_tp_src",
 950                FT_BOOLEAN, 32, NULL, OFPAT_SET_TP_SRC_MASK,
 951                NULL, HFILL }
 952         },
 953         { &hf_openflow_set_tp_dst,
 954             { "TCP/UDP destination port", "openflow.set_tp_dst",
 955                FT_BOOLEAN, 32, NULL, OFPAT_SET_TP_DST_MASK,
 956                NULL, HFILL }
 957         },
 958         { &hf_openflow_enqueue,
 959             { "Output to queue", "openflow.enqueue",
 960                FT_BOOLEAN, 32, NULL, OFPAT_ENQUEUE_MASK,
 961                NULL, HFILL }
 962         },
 963         { &hf_openflow_port_no,
 964             { "Port number", "openflow.port_no",
 965                FT_UINT16, BASE_DEC, NULL, 0x0,
 966                NULL, HFILL }
 967         },
 968         { &hf_openflow_hw_addr,
 969             { "HW Address", "openflow.hw_add",
 970                FT_ETHER, BASE_NONE, NULL, 0x0,
 971                NULL, HFILL }
 972         },
 973         { &hf_openflow_port_name,
 974             { "Name", "openflow.hw_add",
 975                FT_STRING, BASE_NONE, NULL, 0x0,
 976                NULL, HFILL }
 977         },
 978         { &hf_openflow_port_config,
 979             { "Config flags", "openflow.port_config",
 980                FT_UINT32, BASE_HEX, NULL, 0x0,
 981                NULL, HFILL }
 982         },
 983         { &hf_openflow_port_state,
 984             { "State flags", "openflow.port_state",
 985                FT_UINT32, BASE_HEX, NULL, 0x0,
 986                NULL, HFILL }
 987         },
 988         { &hf_openflow_port_curr,
 989             { "Current features", "openflow.port_curr",
 990                FT_UINT32, BASE_HEX, NULL, 0x0,
 991                NULL, HFILL }
 992         },
 993         { &hf_openflow_port_advertised,
 994             { "Advertised features", "openflow.port_advertised",
 995                FT_UINT32, BASE_HEX, NULL, 0x0,
 996                NULL, HFILL }
 997         },
 998         { &hf_openflow_port_supported,
 999             { "Features supported", "openflow.port_supported",
1000                FT_UINT32, BASE_HEX, NULL, 0x0,
1001                NULL, HFILL }
1002         },
1003         { &hf_openflow_port_peer,
1004             { "Features advertised by peer", "openflow.port_peer",
1005                FT_UINT32, BASE_HEX, NULL, 0x0,
1006                NULL, HFILL }
1007         },
1008         { &hf_openflow_port_down,
1009             { "Port is administratively down", "openflow.port_down",
1010                FT_BOOLEAN, 32, NULL, OFPPC_PORT_DOWN,
1011                NULL, HFILL }
1012         },
1013         { &hf_openflow_no_stp,
1014             { "Disable 802.1D spanning tree on port", "openflow.no_stp",
1015                FT_BOOLEAN, 32, NULL, OFPPC_NO_STP,
1016                NULL, HFILL }
1017         },
1018         { &hf_openflow_no_recv,
1019             { "Drop all packets except 802.1D spanning tree packets", "openflow.no_recv",
1020                FT_BOOLEAN, 32, NULL, OFPPC_NO_RECV,
1021                NULL, HFILL }
1022         },
1023         { &hf_openflow_no_recv_stp,
1024             { "Drop received 802.1D STP packets", "openflow.no_recv",
1025                FT_BOOLEAN, 32, NULL, OFPPC_NO_RECV_STP,
1026                NULL, HFILL }
1027         },
1028         { &hf_openflow_no_flood,
1029             { "Do not include this port when flooding", "openflow.no_flood",
1030                FT_BOOLEAN, 32, NULL, OFPPC_NO_FLOOD,
1031                NULL, HFILL }
1032         },
1033         { &hf_openflow_no_fwd,
1034             { "Drop packets forwarded to port", "openflow.no_fwd",
1035                FT_BOOLEAN, 32, NULL, OFPPC_NO_FWD,
1036                NULL, HFILL }
1037         },
1038         { &hf_openflow_no_packet_in,
1039             { "Do not send packet-in msgs for port", "openflow.no_packet_in",
1040                FT_BOOLEAN, 32, NULL, OFPPC_NO_PACKET_IN,
1041                NULL, HFILL }
1042         },
1043         { &hf_openflow_link_down,
1044             { "No physical link present", "openflow.link_down",
1045                FT_BOOLEAN, 32, NULL, OFPPS_LINK_DOWN,
1046                NULL, HFILL }
1047         },
1048         { &hf_openflow_10mb_hd,
1049             { "10 Mb half-duplex rate support", "openflow.10mb_hd",
1050                FT_BOOLEAN, 32, NULL, OFPPF_10MB_HD,
1051                NULL, HFILL }
1052         },
1053         { &hf_openflow_10mb_fd,
1054             { "10 Mb full-duplex rate support", "openflow.10mb_fd",
1055                FT_BOOLEAN, 32, NULL, OFPPF_10MB_FD,
1056                NULL, HFILL }
1057         },
1058         { &hf_openflow_100mb_hd,
1059             { "100 Mb half-duplex rate support", "openflow.100mb_hd",
1060                FT_BOOLEAN, 32, NULL, OFPPF_100MB_HD,
1061                NULL, HFILL }
1062         },
1063         { &hf_openflow_100mb_fd,
1064             { "100 Mb full-duplex rate support", "openflow.100mb_0fd",
1065                FT_BOOLEAN, 32, NULL, OFPPF_100MB_FD,
1066                NULL, HFILL }
1067         },
1068         { &hf_openflow_1gb_hd,
1069             { "1 Gb half-duplex rate support", "openflow.1gb_hd",
1070                FT_BOOLEAN, 32, NULL, OFPPF_1GB_HD,
1071                NULL, HFILL }
1072         },
1073         { &hf_openflow_1gb_fd,
1074             { "1 Gb full-duplex rate support", "openflow.1gb_fd",
1075                FT_BOOLEAN, 32, NULL, OFPPF_1GB_FD,
1076                NULL, HFILL }
1077         },
1078         { &hf_openflow_10gb_fd,
1079             { "10 Gb full-duplex rate support", "openflow.10gb_fd",
1080                FT_BOOLEAN, 32, NULL, OFPPF_10GB_FD,
1081                NULL, HFILL }
1082         },
1083         { &hf_openflow_copper,
1084             { "Copper medium", "openflow.copper",
1085                FT_BOOLEAN, 32, NULL, OFPPF_COPPER,
1086                NULL, HFILL }
1087         },
1088         { &hf_openflow_fiber,
1089             { "Fiber medium", "openflow.fiber",
1090                FT_BOOLEAN, 32, NULL, OFPPF_FIBER,
1091                NULL, HFILL }
1092         },
1093         { &hf_openflow_autoneg,
1094             { "Auto-negotiation", "openflow.autoneg",
1095                FT_BOOLEAN, 32, NULL, OFPPF_AUTONEG,
1096                NULL, HFILL }
1097         },
1098         { &hf_openflow_pause,
1099             { "Pause", "openflow.pause",
1100                FT_BOOLEAN, 32, NULL, OFPPF_PAUSE,
1101                NULL, HFILL }
1102         },
1103         { &hf_openflow_pause_asym,
1104             { "Asymmetric pause", "openflow.pause_asym",
1105                FT_BOOLEAN, 32, NULL, OFPPF_PAUSE_ASYM,
1106                NULL, HFILL }
1107         },
1108         { &hf_openflow_config_flags,
1109             { "Config flags", "openflow.config_flags",
1110                FT_UINT16, BASE_HEX, NULL, 0x0,
1111                NULL, HFILL }
1112         },
1113         { &hf_openflow_miss_send_len,
1114             { "Max bytes of packet", "openflow.miss_send_len",
1115                FT_UINT16, BASE_HEX, NULL, 0x0,
1116                NULL, HFILL }
1117         },
1118         { &hf_openflow_buffer_id,
1119             { "Buffser Id", "openflow.buffer_id",
1120                FT_UINT32, BASE_HEX, NULL, 0x0,
1121                NULL, HFILL }
1122         },
1123         { &hf_openflow_total_len,
1124             { "Total length", "openflow.total_len",
1125                FT_UINT16, BASE_DEC, NULL, 0x0,
1126                NULL, HFILL }
1127         },
1128         { &hf_openflow_in_port,
1129             { "In port", "openflow.in_port",
1130                FT_UINT16, BASE_DEC, NULL, 0x0,
1131                NULL, HFILL }
1132         },
1133         { &hf_openflow_reason,
1134             { "Reason", "openflow.reason",
1135                FT_UINT8, BASE_DEC, VALS(openflow_reason_values), 0x0,
1136                NULL, HFILL }
1137         },
1138         { &hf_openflow_table_id,
1139             { "Table Id", "openflow.table_id",
1140                FT_UINT8, BASE_DEC, NULL, 0x0,
1141                NULL, HFILL }
1142         },
1143         { &hf_openflow_cookie,
1144             { "Cookie", "openflow.cookie",
1145                FT_UINT64, BASE_HEX, NULL, 0x0,
1146                NULL, HFILL }
1147         },
1148         { &hf_openflow_cookie_mask,
1149             { "Cookie mask", "openflow.cookie",
1150                FT_UINT64, BASE_HEX, NULL, 0x0,
1151                NULL, HFILL }
1152         },
1153         { &hf_openflow_padd8,
1154             { "Padding", "openflow.padding8",
1155                FT_UINT8, BASE_DEC, NULL, 0x0,
1156                NULL, HFILL }
1157         },
1158         { &hf_openflow_padd16,
1159             { "Padding", "openflow.padding16",
1160                FT_UINT16, BASE_DEC, NULL, 0x0,
1161                NULL, HFILL }
1162         },
1163         { &hf_openflow_padd48,
1164             { "Padding", "openflow.padding48",
1165                FT_UINT64, BASE_DEC, NULL, 0x0,
1166                NULL, HFILL }
1167         },
1168         { &hf_openflow_actions_len,
1169             { "Actions length", "openflow.actions_len",
1170                FT_UINT16, BASE_DEC, NULL, 0x0,
1171                NULL, HFILL }
1172         },
1173         { &hf_openflow_action_type,
1174             { "Actions type", "openflow.action_typ",
1175                FT_UINT16, BASE_DEC, VALS(openflow_action_values), 0x0,
1176                NULL, HFILL }
1177         },
1178         { &hf_openflow_action_len,
1179             { "Action length", "openflow.action_len",
1180                FT_UINT16, BASE_DEC, NULL, 0x0,
1181                NULL, HFILL }
1182         },
1183         { &hf_openflow_output_port,
1184             { "Output port", "openflow.output_port",
1185                FT_UINT16, BASE_DEC, NULL, 0x0,
1186                NULL, HFILL }
1187         },
1188         { &hf_openflow_max_len,
1189             { "Max length", "openflow.max_len",
1190                FT_UINT16, BASE_DEC, NULL, 0x0,
1191                NULL, HFILL }
1192         },
1193         { &hf_openflow_wildcards,
1194             { "Wildcards", "openflow.wildcards",
1195                FT_UINT32, BASE_DEC, NULL, 0x0,
1196                NULL, HFILL }
1197         },
1198         { &hf_openflow_command,
1199             { "Command", "openflow.command",
1200                FT_UINT16, BASE_DEC, VALS(openflow_command_values), 0x0,
1201                NULL, HFILL }
1202         },
1203         { &hf_openflow_eth_src,
1204             { "Ethernet source address", "openflow.eth_src",
1205                FT_ETHER, BASE_NONE, NULL, 0x0,
1206                NULL, HFILL }
1207         },
1208         { &hf_openflow_eth_dst,
1209             { "Ethernet destination address", "openflow.eth_src",
1210                FT_ETHER, BASE_NONE, NULL, 0x0,
1211                NULL, HFILL }
1212         },
1213         { &hf_openflow_dl_vlan,
1214             { "Input VLAN id", "openflow.dl_vlan",
1215                FT_UINT16, BASE_DEC, NULL, 0x0,
1216                NULL, HFILL }
1217         },
1218         { &hf_openflow_dl_vlan_pcp,
1219             { "Input VLAN priority", "openflow.dl_vlan_pcp",
1220                FT_UINT8, BASE_DEC, NULL, 0x0,
1221                NULL, HFILL }
1222         },
1223         { &hf_openflow_idle_timeout,
1224             { "Idle time-out", "openflow.idle_timeout",
1225                FT_UINT16, BASE_DEC, NULL, 0x0,
1226                NULL, HFILL }
1227         },
1228         { &hf_openflow_hard_timeout,
1229             { "hard time-out", "openflow.hard_timeout",
1230                FT_UINT16, BASE_DEC, NULL, 0x0,
1231                NULL, HFILL }
1232         },
1233         { &hf_openflow_priority,
1234             { "Priority", "openflow.priority",
1235                FT_UINT16, BASE_DEC, NULL, 0x0,
1236                NULL, HFILL }
1237         },
1238         { &hf_openflow_out_port,
1239             { "Out port", "openflow.out_port",
1240                FT_UINT32, BASE_DEC, NULL, 0x0,
1241                NULL, HFILL }
1242         },
1243         { &hf_openflow_out_group,
1244             { "Out group", "openflow.out_group",
1245                FT_UINT32, BASE_DEC, NULL, 0x0,
1246                NULL, HFILL }
1247         },
1248         { &hf_openflow_flags,
1249             { "Flags", "openflow.flags",
1250                FT_UINT16, BASE_DEC, NULL, 0x0,
1251                NULL, HFILL }
1252         },
1253     };
1254
1255     static gint *ett[] = {
1256         &ett_openflow,
1257         &ett_openflow_path_id,
1258         &ett_openflow_cap,
1259         &ett_openflow_act,
1260         &ett_openflow_port,
1261         &ett_openflow_port_cnf,
1262         &ett_openflow_port_state,
1263         &ett_openflow_port_cf
1264     };
1265
1266     /* Register the protocol name and description */
1267     proto_openflow_v1 = proto_register_protocol("OpenFlow 1.0",
1268             "openflow_v1", "openflow_v1");
1269
1270     new_register_dissector("openflow_v1", dissect_openflow_v1, proto_openflow_v1);
1271
1272     eth_withoutfcs_handle = find_dissector("eth_withoutfcs");
1273
1274     /* Required function calls to register the header fields and subtrees */
1275     proto_register_field_array(proto_openflow_v1, hf, array_length(hf));
1276     proto_register_subtree_array(ett, array_length(ett));
1277 }