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  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  *
  24  * Ref https://www.opennetworking.org/sdn-resources/onf-specifications/openflow
  25  */
  26
  27 #include "config.h"
  28
  29 #include <glib.h>
  30
  31 #include <epan/packet.h>
  32 #include <epan/prefs.h>
  33
  34 void proto_register_openflow_v1(void);
  35 void proto_reg_handoff_openflow_v1(void);
  36
  37 static dissector_handle_t eth_withoutfcs_handle;
  38
  39 /* Initialize the protocol and registered fields */
  40 static int proto_openflow_v1 = -1;
  41 static int hf_openflow_version = -1;
  42 static int hf_openflow_1_0_type = -1;
  43 static int hf_openflow_length = -1;
  44 static int hf_openflow_xid = -1;
  45
  46 static int hf_openflow_datapath_id = -1;
  47 static int hf_openflow_datapath_mac = -1;
  48 static int hf_openflow_datapath_impl = -1;
  49 static int hf_openflow_n_buffers = -1;
  50 static int hf_openflow_n_tables = -1;
  51 /* static int hf_openflow_auxiliary_id = -1; */
  52 /* static int hf_openflow_pad3 = -1; */
  53 static int hf_openflow_capabilities = -1;
  54 static int hf_openflow_actions = -1;
  55 /* static int hf_openflow_reserved32 = -1; */
  56 static int hf_openflow_cap_flow_stats = -1;
  57 static int hf_openflow_table_stats = -1;
  58 static int hf_openflow_port_stats = -1;
  59 static int hf_openflow_group_stats = -1;
  60 static int hf_openflow_ip_reasm = -1;
  61 static int hf_openflow_queue_stats = -1;
  62 static int hf_openflow_port_blocked = -1;
  63
  64 static int hf_openflow_output = -1; /* Output to switch port. */
  65 static int hf_openflow_set_vlan_vid = -1; /* Set the 802.1q VLAN id. */
  66 static int hf_openflow_set_vlan_pcp = -1; /* Set the 802.1q priority. */
  67 static int hf_openflow_strip_vlan = -1; /* Strip the 802.1q header. */
  68 static int hf_openflow_set_dl_src = -1; /* Ethernet source address. */
  69 static int hf_openflow_set_dl_dst = -1; /* Ethernet destination address. */
  70 static int hf_openflow_set_nw_src = -1; /* IP source address. */
  71 static int hf_openflow_set_nw_dst = -1; /* IP destination address. */
  72 static int hf_openflow_set_nw_tos = -1; /* IP ToS (DSCP field, 6 bits). */
  73 static int hf_openflow_set_tp_src = -1; /* TCP/UDP source port. */
  74 static int hf_openflow_set_tp_dst = -1; /* TCP/UDP destination port. */
  75 static int hf_openflow_enqueue = -1; /* Output to queue. */
  76
  77 static int hf_openflow_port_no = -1;
  78 static int hf_openflow_hw_addr = -1;
  79 static int hf_openflow_port_name = -1;
  80
  81
  82 static int hf_openflow_port_config = -1;
  83 static int hf_openflow_port_state = -1;
  84 static int hf_openflow_port_curr = -1;
  85 static int hf_openflow_port_advertised = -1;
  86 static int hf_openflow_port_supported = -1;
  87 static int hf_openflow_port_peer = -1;
  88
  89 static int hf_openflow_port_down = -1;    /* Port is administratively down. */
  90 static int hf_openflow_no_stp = -1;       /* Disable 802.1D spanning tree on port. */
  91 static int hf_openflow_no_recv = -1;      /* Drop all packets except 802.1D spanning tree packets. */
  92 static int hf_openflow_no_recv_stp = -1;  /* Drop received 802.1D STP packets. */
  93 static int hf_openflow_no_flood = -1;     /* Do not include this port when flooding. */
  94 static int hf_openflow_no_fwd = -1;       /* Drop packets forwarded to port. */
  95 static int hf_openflow_no_packet_in = -1; /* Do not send packet-in msgs for port. */
  96
  97 static int hf_openflow_link_down = -1;    /* No physical link present. */
  98
  99 static int hf_openflow_10mb_hd = -1;      /* 10 Mb half-duplex rate support. */
 100 static int hf_openflow_10mb_fd = -1;      /* 10 Mb full-duplex rate support. */
 101 static int hf_openflow_100mb_hd = -1;     /* 100 Mb half-duplex rate support. */
 102 static int hf_openflow_100mb_fd = -1;     /* 100 Mb full-duplex rate support. */
 103 static int hf_openflow_1gb_hd = -1;       /* 1 Gb half-duplex rate support. */
 104 static int hf_openflow_1gb_fd = -1;       /* 1 Gb full-duplex rate support. */
 105 static int hf_openflow_10gb_fd = -1;      /* 10 Gb full-duplex rate support. */
 106 static int hf_openflow_copper = -1;       /* Copper medium. */
 107 static int hf_openflow_fiber = -1;        /* Fiber medium. */
 108 static int hf_openflow_autoneg = -1;      /* Auto-negotiation. */
 109 static int hf_openflow_pause = -1;        /* Pause. */
 110 static int hf_openflow_pause_asym = -1;   /* Asymmetric pause. */
 111
 112 static int hf_openflow_config_flags = -1;
 113 static int hf_openflow_miss_send_len = -1;
 114
 115 static int hf_openflow_buffer_id = -1;
 116 static int hf_openflow_total_len = -1;
 117 static int hf_openflow_in_port = -1;
 118 static int hf_openflow_reason = -1;
 119 /* static int hf_openflow_table_id = -1; */
 120 static int hf_openflow_cookie = -1;
 121 /* static int hf_openflow_cookie_mask = -1; */
 122 static int hf_openflow_padd8 = -1;
 123 /* static int hf_openflow_padd16 = -1; */
 124 /* static int hf_openflow_padd48 = -1; */
 125 static int hf_openflow_actions_len = -1;
 126 static int hf_openflow_action_type = -1;
 127 static int hf_openflow_action_len = -1;
 128 static int hf_openflow_output_port = -1;
 129 static int hf_openflow_max_len = -1;
 130 static int hf_openflow_wildcards = -1;
 131 static int hf_openflow_command = -1;
 132 static int hf_openflow_eth_src = -1;
 133 static int hf_openflow_eth_dst = -1;
 134 static int hf_openflow_dl_vlan = -1;
 135 static int hf_openflow_dl_vlan_pcp = -1;
 136 static int hf_openflow_idle_timeout = -1;
 137 static int hf_openflow_hard_timeout = -1;
 138 static int hf_openflow_priority = -1;
 139 static int hf_openflow_out_port = -1;
 140 /* static int hf_openflow_out_group = -1; */
 141 static int hf_openflow_flags = -1;
 142
 143 /* Initialize the subtree pointers */
 144 static gint ett_openflow = -1;
 145 static gint ett_openflow_path_id = -1;
 146 static gint ett_openflow_cap = -1;
 147 static gint ett_openflow_act = -1;
 148 static gint ett_openflow_port = -1;
 149 static gint ett_openflow_port_cnf = -1;
 150 static gint ett_openflow_port_state = -1;
 151 static gint ett_openflow_port_cf = -1;
 152
 153 static const value_string openflow_version_values[] = {
 154     { 0x01, "1.0" },
 155     { 0, NULL }
 156 };
 157
 158
 159 /* Immutable messages. */
 160 #define OFPT_1_0_HELLO                     0 /* Symmetric message */
 161 #define OFPT_1_0_ERROR                     1 /* Symmetric message */
 162 #define OFPT_1_0_ECHO_REQUEST              2 /* Symmetric message */
 163 #define OFPT_1_0_ECHO_REPLY                3 /* Symmetric message */
 164 #define OFPT_1_0_VENDOR                    4 /* Symmetric message */
 165 /* Switch configuration messages. */
 166 #define OFPT_1_0_FEATURES_REQUEST          5 /* Controller/switch message */
 167 #define OFPT_1_0_FEATURES_REPLY            6 /* Controller/switch message */
 168 #define OFPT_1_0_GET_CONFIG_REQUEST        7 /* Controller/switch message */
 169 #define OFPT_1_0_GET_CONFIG_REPLY          8 /* Controller/switch message */
 170 #define OFPT_1_0_SET_CONFIG                9 /* Controller/switch message */
 171 /* Asynchronous messages. */
 172 #define OFPT_1_0_PACKET_IN                10 /* Async message */
 173 #define OFPT_1_0_FLOW_REMOVED             11 /* Async message */
 174 #define OFPT_1_0_PORT_STATUS              12 /* Async message */
 175 /* Controller command messages. */
 176 #define OFPT_1_0_PACKET_OUT               13 /* Controller/switch message */
 177 #define OFPT_1_0_FLOW_MOD                 14 /* Controller/switch message */
 178 #define OFPT_1_0_PORT_MOD                 15 /* Controller/switch message */
 179 /* Statistics messages. */
 180 #define OFPT_1_0_STATS_REQUEST            16 /* Controller/switch message */
 181 #define OFPT_1_0_STATS_REPLY              17 /* Controller/switch message */
 182 /* Barrier messages. */
 183 #define OFPT_1_0_BARRIER_REQUEST          18 /* Controller/switch message */
 184 #define OFPT_1_0_BARRIER_REPLY            19 /* Controller/switch message */
 185 /* Queue Configuration messages. */
 186 #define OFPT_1_0_QUEUE_GET_CONFIG_REQUEST 20 /* Controller/switch message */
 187 #define OFPT_1_0_QUEUE_GET_CONFIG_REPLY   21 /* Controller/switch message */
 188
 189
 190 static const value_string openflow_1_0_type_values[] = {
 191 /* Immutable messages. */
 192
 193 /* Immutable messages. */
 194     { 0, "OFPT_HELLO" },              /* Symmetric message */
 195     { 1, "OFPT_ERROR" },              /* Symmetric message */
 196     { 2, "OFPT_ECHO_REQUEST" },       /* Symmetric message */
 197     { 3, "OFPT_ECHO_REPLY" },         /* Symmetric message */
 198     { 4, "OFPT_VENDOR" },             /* Symmetric message */
 199 /* Switch configuration messages. */
 200     { 5, "OFPT_FEATURES_REQUEST" },   /* Controller/switch message */
 201     { 6, "OFPT_FEATURES_REPLY" },     /* Controller/switch message */
 202     { 7, "OFPT_GET_CONFIG_REQUEST" }, /* Controller/switch message */
 203     { 8, "OFPT_GET_CONFIG_REPLY" },   /* Controller/switch message */
 204     { 9, "OFPT_SET_CONFIG" },         /* Controller/switch message */
 205 /* Asynchronous messages. */
 206     { 10, "OFPT_PACKET_IN" },                /* Async message */
 207     { 11, "OFPT_FLOW_REMOVED" },             /* Async message */
 208     { 12, "OFPT_PORT_STATUS" },              /* Async message */
 209 /* Controller command messages. */
 210     { 13, "OFPT_PACKET_OUT" },               /* Controller/switch message */
 211     { 14, "OFPT_FLOW_MOD" },                 /* Controller/switch message */
 212     { 15, "OFPT_PORT_MOD" },                 /* Controller/switch message */
 213 /* Statistics messages. */
 214     { 16, "OFPT_STATS_REQUEST" },            /* Controller/switch message */
 215     { 17, "OFPT_STATS_REPLY" },              /* Controller/switch message */
 216 /* Barrier messages. */
 217     { 18, "OFPT_BARRIER_REQUEST" },          /* Controller/switch message */
 218     { 19, "OFPT_BARRIER_REPLY" },            /* Controller/switch message */
 219 /* Queue Configuration messages. */
 220     { 20, "OFPT_QUEUE_GET_CONFIG_REQUEST" }, /* Controller/switch message */
 221     { 21, "OFPT_QUEUE_GET_CONFIG_REPLY" },   /* Controller/switch message */
 222     { 0, NULL }
 223 };
 224
 225
 226 #define OFPC_FLOW_STATS   1<<0  /* Flow statistics. */
 227 #define OFPC_TABLE_STATS  1<<1  /* Table statistics. */
 228 #define OFPC_PORT_STATS   1<<2  /* Port statistics. */
 229 #define OFPC_GROUP_STATS  1<<3  /* Group statistics. */
 230 #define OFPC_IP_REASM     1<<5  /* Can reassemble IP fragments. */
 231 #define OFPC_QUEUE_STATS  1<<6  /* Queue statistics. */
 232 #define OFPC_PORT_BLOCKED 1<<8  /* Switch will block looping ports. */
 233
 234 #define OFPAT_OUTPUT_MASK       1<<0  /* Output to switch port. */
 235 #define OFPAT_SET_VLAN_VID_MASK 1<<1  /* Set the 802.1q VLAN id. */
 236 #define OFPAT_SET_VLAN_PCP_MASK 1<<2  /* Set the 802.1q priority. */
 237 #define OFPAT_STRIP_VLAN_MASK   1<<3  /* Strip the 802.1q header. */
 238 #define OFPAT_SET_DL_SRC_MASK   1<<4  /* Ethernet source address. */
 239 #define OFPAT_SET_DL_DST_MASK   1<<5  /* Ethernet destination address. */
 240 #define OFPAT_SET_NW_SRC_MASK   1<<6  /* IP source address. */
 241 #define OFPAT_SET_NW_DST_MASK   1<<7  /* IP destination address. */
 242 #define OFPAT_SET_NW_TOS_MASK   1<<8  /* IP ToS (DSCP field, 6 bits). */
 243 #define OFPAT_SET_TP_SRC_MASK   1<<9  /* TCP/UDP source port. */
 244 #define OFPAT_SET_TP_DST_MASK   1<<10 /* TCP/UDP destination port. */
 245 #define OFPAT_ENQUEUE_MASK      1<<11 /* Output to queue. */
 246
 247 #define OFPPC_PORT_DOWN    1<<0 /* Port is administratively down. */
 248 #define OFPPC_NO_STP       1<<1 /* Disable 802.1D spanning tree on port. */
 249 #define OFPPC_NO_RECV      1<<2 /* Drop all packets except 802.1D spanning tree packets. */
 250 #define OFPPC_NO_RECV_STP  1<<3 /* Drop received 802.1D STP packets. */
 251 #define OFPPC_NO_FLOOD     1<<4 /* Do not include this port when flooding. */
 252 #define OFPPC_NO_FWD       1<<5 /* Drop packets forwarded to port. */
 253 #define OFPPC_NO_PACKET_IN 1<<6 /* Do not send packet-in msgs for port. */
 254
 255 #define OFP_MAX_PORT_NAME_LEN 16
 256
 257 #define OFPPS_LINK_DOWN    1<<0 /* No physical link present. */
 258 #define OFPPS_STP_LISTEN   0<<8 /* Not learning or relaying frames. */
 259 #define OFPPS_STP_LEARN    1<<8 /* Learning but not relaying frames. */
 260 #define OFPPS_STP_FORWARD  2<<8 /* Learning and relaying frames. */
 261 #define OFPPS_STP_BLOCK    3<<8 /* Not part of spanning tree. */
 262 #define OFPPS_STP_MASK     3<<8 /* Bit mask for OFPPS_STP_* values. */
 263
 264
 265 #define OFPPF_10MB_HD      1<<0 /* 10 Mb half-duplex rate support. */
 266 #define OFPPF_10MB_FD      1<<1 /* 10 Mb full-duplex rate support. */
 267 #define OFPPF_100MB_HD     1<<2 /* 100 Mb half-duplex rate support. */
 268 #define OFPPF_100MB_FD     1<<3 /* 100 Mb full-duplex rate support. */
 269 #define OFPPF_1GB_HD       1<<4 /* 1 Gb half-duplex rate support. */
 270 #define OFPPF_1GB_FD       1<<5 /* 1 Gb full-duplex rate support. */
 271 #define OFPPF_10GB_FD      1<<6 /* 10 Gb full-duplex rate support. */
 272 #define OFPPF_COPPER       1<<7 /* Copper medium. */
 273 #define OFPPF_FIBER        1<<8 /* Fiber medium. */
 274 #define OFPPF_AUTONEG      1<<9 /* Auto-negotiation. */
 275 #define OFPPF_PAUSE        1<<10 /* Pause. */
 276 #define OFPPF_PAUSE_ASYM   1<<11 /* Asymmetric pause. */
 277
 278
 279 #define OFPAT_OUTPUT         0 /* Output to switch port. */
 280 #define OFPAT_SET_VLAN_VID   1 /* Set the 802.1q VLAN id. */
 281 #define OFPAT_SET_VLAN_PCP   2 /* Set the 802.1q priority. */
 282 #define OFPAT_STRIP_VLAN     3 /* Strip the 802.1q header. */
 283 #define OFPAT_SET_DL_SRC     4 /* Ethernet source address. */
 284 #define OFPAT_SET_DL_DST     5 /* Ethernet destination address. */
 285 #define OFPAT_SET_NW_SRC     6 /* IP source address. */
 286 #define OFPAT_SET_NW_DST     7 /* IP destination address. */
 287 #define OFPAT_SET_TP_SRC     8 /* TCP/UDP source port. */
 288 #define OFPAT_SET_TP_DST     9 /* TCP/UDP destination port. */
 289 #define OFPAT_VENDOR         0xffff
 290
 291 static int
 292 dissect_openflow_ofp_match_v1(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 293 {
 294
 295     /* uint32_t wildcards; Wildcard fields. */
 296     proto_tree_add_item(tree, hf_openflow_wildcards, tvb, offset, 4, ENC_BIG_ENDIAN);
 297     offset+=4;
 298     /* uint16_t in_port; Input switch port. */
 299     proto_tree_add_item(tree, hf_openflow_in_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 300     offset+=2;
 301
 302     /* uint8_t dl_src[OFP_ETH_ALEN];  Ethernet source address. */
 303     proto_tree_add_item(tree, hf_openflow_eth_src, tvb, offset, 6, ENC_NA);
 304     offset+=6;
 305     /* uint8_t dl_dst[OFP_ETH_ALEN]; Ethernet destination address. */
 306     proto_tree_add_item(tree, hf_openflow_eth_dst, tvb, offset, 6, ENC_NA);
 307     offset+=6;
 308     /* uint16_t dl_vlan; Input VLAN id. */
 309     proto_tree_add_item(tree, hf_openflow_dl_vlan, tvb, offset, 2, ENC_BIG_ENDIAN);
 310     offset+=2;
 311     /* uint8_t dl_vlan_pcp; Input VLAN priority. */
 312     proto_tree_add_item(tree, hf_openflow_dl_vlan_pcp, tvb, offset, 1, ENC_BIG_ENDIAN);
 313     offset++;
 314     /* uint8_t pad1[1]; Align to 64-bits */
 315     proto_tree_add_item(tree, hf_openflow_padd8, tvb, offset, 1, ENC_BIG_ENDIAN);
 316     offset++;
 317     /* uint16_t dl_type; Ethernet frame type. */
 318     /* uint8_t nw_tos; IP ToS (actually DSCP field, 6 bits). */
 319     /* uint8_t nw_proto; IP protocol or lower 8 bits of
 320      * ARP opcode.
 321      */
 322     /* uint8_t pad2[2]; Align to 64-bits */
 323     /* uint32_t nw_src; IP source address. */
 324     /* uint32_t nw_dst; IP destination address. */
 325     /* uint16_t tp_src; TCP/UDP source port. */
 326     /* uint16_t tp_dst; TCP/UDP destination port. */
 327     proto_tree_add_text(tree, tvb, offset, 18, "Data not dissected yet");
 328     offset +=18;
 329
 330     return offset;
 331 }
 332
 333
 334 static const value_string openflow_action_values[] = {
 335     { OFPAT_OUTPUT,          "Output to switch port" },
 336     { OFPAT_SET_VLAN_VID,    "Set the 802.1q VLAN id" },
 337     { OFPAT_SET_VLAN_PCP,    "Set the 802.1q priority" },
 338     { OFPAT_STRIP_VLAN,      "Strip the 802.1q header" },
 339     { OFPAT_SET_DL_SRC,      "Ethernet source address" },
 340     { OFPAT_SET_DL_DST,      "Ethernet destination address" },
 341     { OFPAT_SET_NW_SRC,      "IP source address" },
 342     { OFPAT_SET_NW_DST,      "IP destination address" },
 343     { OFPAT_SET_TP_SRC,      "TCP/UDP source port" },
 344     { OFPAT_SET_TP_DST,      "TCP/UDP destination port" },
 345     { OFPAT_VENDOR,          "Vendor specific action"},
 346     { 0, NULL }
 347 };
 348
 349 static int
 350 dissect_openflow_action_header(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 351 {
 352     guint16 action_type, action_len;
 353
 354     /* uint16_t type;  One of OFPAT_*. */
 355     action_type = tvb_get_ntohs(tvb, offset);
 356     proto_tree_add_item(tree, hf_openflow_action_type, tvb, offset, 2, ENC_BIG_ENDIAN);
 357     offset+=2;
 358     /* Length of action, including this
 359      * header. This is the length of action,
 360      * including any padding to make it
 361      * 64-bit aligned.
 362      */
 363     action_len = tvb_get_ntohs(tvb, offset);
 364     proto_tree_add_item(tree, hf_openflow_action_len, tvb, offset, 2, ENC_BIG_ENDIAN);
 365     offset+=2;
 366
 367     switch(action_type){
 368     case OFPAT_OUTPUT:
 369         /* uint16_t port;  Output port. */
 370         proto_tree_add_item(tree, hf_openflow_output_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 371         offset+=2;
 372         /* uint16_t max_len;  Max length to send to controller. */
 373         proto_tree_add_item(tree, hf_openflow_max_len, tvb, offset, 2, ENC_BIG_ENDIAN);
 374         offset+=2;
 375         break;
 376     default:
 377         proto_tree_add_text(tree, tvb, offset, action_len-4, "Action not dissected yet");
 378         offset+=(action_len-4);
 379         break;
 380     }
 381
 382     return offset;
 383 }
 384 static void
 385 dissect_openflow_phy_port(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 386 {
 387     proto_item *ti;
 388     proto_tree *port_cnf_tree, *port_state_tree, *port_cf_tree;
 389
 390     proto_tree_add_item(tree, hf_openflow_port_no, tvb, offset, 2, ENC_BIG_ENDIAN);
 391     offset+=2;
 392     proto_tree_add_item(tree, hf_openflow_hw_addr, tvb, offset, 6, ENC_NA);
 393     offset+=6;
 394     proto_tree_add_item(tree, hf_openflow_port_name, tvb, offset, OFP_MAX_PORT_NAME_LEN, ENC_ASCII|ENC_NA);
 395     offset+=OFP_MAX_PORT_NAME_LEN;
 396
 397     /* Bitmap of OFPPC_* flags. */
 398     ti = proto_tree_add_item(tree, hf_openflow_port_config, tvb, offset, 4, ENC_BIG_ENDIAN);
 399     port_cnf_tree = proto_item_add_subtree(ti, ett_openflow_port_cnf);
 400
 401     /* Port is administratively down. */
 402     proto_tree_add_item(port_cnf_tree, hf_openflow_port_down, tvb, offset, 4, ENC_BIG_ENDIAN);
 403     /* Disable 802.1D spanning tree on port. */
 404     proto_tree_add_item(port_cnf_tree, hf_openflow_no_stp, tvb, offset, 4, ENC_BIG_ENDIAN);
 405     /* Drop all packets except 802.1D spanning tree packets. */
 406     proto_tree_add_item(port_cnf_tree, hf_openflow_no_recv, tvb, offset, 4, ENC_BIG_ENDIAN);
 407     /* Drop received 802.1D STP packets. */
 408     proto_tree_add_item(port_cnf_tree, hf_openflow_no_recv_stp, tvb, offset, 4, ENC_BIG_ENDIAN);
 409     /* Do not include this port when flooding. */
 410     proto_tree_add_item(port_cnf_tree, hf_openflow_no_flood, tvb, offset, 4, ENC_BIG_ENDIAN);
 411      /* Drop packets forwarded to port. */
 412     proto_tree_add_item(port_cnf_tree, hf_openflow_no_fwd, tvb, offset, 4, ENC_BIG_ENDIAN);
 413     /* Do not send packet-in msgs for port. */
 414     proto_tree_add_item(port_cnf_tree, hf_openflow_no_packet_in, tvb, offset, 4, ENC_BIG_ENDIAN);
 415     offset+=4;
 416
 417     /* Bitmap of OFPPS_* flags. */
 418     ti = proto_tree_add_item(tree, hf_openflow_port_state, tvb, offset, 4, ENC_BIG_ENDIAN);
 419     port_state_tree = proto_item_add_subtree(ti, ett_openflow_port_state);
 420
 421     /* No physical link present. */
 422     proto_tree_add_item(port_state_tree, hf_openflow_link_down, tvb, offset, 4, ENC_BIG_ENDIAN);
 423
 424     offset+=4;
 425
 426     /* Current features. */
 427     ti = proto_tree_add_item(tree, hf_openflow_port_curr, tvb, offset, 4, ENC_BIG_ENDIAN);
 428     port_cf_tree = proto_item_add_subtree(ti, ett_openflow_port_cf);
 429     /* 10 Mb half-duplex rate support. */
 430     proto_tree_add_item(port_cf_tree, hf_openflow_10mb_hd, tvb, offset, 4, ENC_BIG_ENDIAN);
 431     /* 10 Mb full-duplex rate support. */
 432     proto_tree_add_item(port_cf_tree, hf_openflow_10mb_fd, tvb, offset, 4, ENC_BIG_ENDIAN);
 433     /* 100 Mb half-duplex rate support. */
 434     proto_tree_add_item(port_cf_tree, hf_openflow_100mb_hd, tvb, offset, 4, ENC_BIG_ENDIAN);
 435     /* 100 Mb full-duplex rate support. */
 436     proto_tree_add_item(port_cf_tree, hf_openflow_100mb_fd, tvb, offset, 4, ENC_BIG_ENDIAN);
 437     /* 1 Gb half-duplex rate support. */
 438     proto_tree_add_item(port_cf_tree, hf_openflow_1gb_hd, tvb, offset, 4, ENC_BIG_ENDIAN);
 439     /* 1 Gb full-duplex rate support. */
 440     proto_tree_add_item(port_cf_tree, hf_openflow_1gb_fd, tvb, offset, 4, ENC_BIG_ENDIAN);
 441     /* 10 Gb full-duplex rate support. */
 442     proto_tree_add_item(port_cf_tree, hf_openflow_10gb_fd, tvb, offset, 4, ENC_BIG_ENDIAN);
 443     /* Copper medium. */
 444     proto_tree_add_item(port_cf_tree, hf_openflow_copper, tvb, offset, 4, ENC_BIG_ENDIAN);
 445     /* Fiber medium. */
 446     proto_tree_add_item(port_cf_tree, hf_openflow_fiber, tvb, offset, 4, ENC_BIG_ENDIAN);
 447     /* Auto-negotiation. */
 448     proto_tree_add_item(port_cf_tree, hf_openflow_autoneg, tvb, offset, 4, ENC_BIG_ENDIAN);
 449     /* Pause. */
 450     proto_tree_add_item(port_cf_tree, hf_openflow_pause, tvb, offset, 4, ENC_BIG_ENDIAN);
 451     /* Asymmetric pause. */
 452     proto_tree_add_item(port_cf_tree, hf_openflow_pause_asym, tvb, offset, 4, ENC_BIG_ENDIAN);
 453     offset+=4;
 454
 455     /* Features being advertised by the port. */
 456     proto_tree_add_item(tree, hf_openflow_port_advertised, tvb, offset, 4, ENC_BIG_ENDIAN);
 457     offset+=4;
 458
 459     /* Features supported by the port. */
 460     proto_tree_add_item(tree, hf_openflow_port_supported, tvb, offset, 4, ENC_BIG_ENDIAN);
 461     offset+=4;
 462     /* Features advertised by peer. */
 463     proto_tree_add_item(tree, hf_openflow_port_peer, tvb, offset, 4, ENC_BIG_ENDIAN);
 464
 465
 466 }
 467
 468 #if 0
 469 /*
 470  * Switch features.
 471  */
 472
 473 struct ofp_switch_features {
 474     struct ofp_header   header;
 475     uint64_t            datapath_id;  /* Datapath unique ID. The lower 48-bits are for
 476                                          a MAC address, while the upper 16-bits are
 477                                          implementer-defined. */
 478     uint32_t            n_buffers;    /* Max packets buffered at once. */
 479     uint8_t             n_tables;     /* Number of tables supported by datapath. */
 480     uint8_t             pad[3];       /* Align to 64-bits. */
 481     /* Features. */
 482     uint32_t            capabilities; /* Bitmap of support "ofp_capabilities". */
 483     uint32_t            actions;      /* Bitmap of supported "ofp_action_type"s. */
 484     /* Port info.*/
 485     struct ofp_phy_port ports[0];     /* Port definitions. The number of ports
 486                                          is inferred from the length field in
 487                                          the header. */
 488 #endif
 489
 490 static void
 491 dissect_openflow_features_reply_v1(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 length)
 492 {
 493     proto_item *ti;
 494     proto_tree *path_id_tree, *cap_tree, *act_tree;
 495
 496     guint16 length_remaining;
 497
 498     ti = proto_tree_add_item(tree, hf_openflow_datapath_id, tvb, offset, 8, ENC_BIG_ENDIAN);
 499     path_id_tree = proto_item_add_subtree(ti, ett_openflow_path_id);
 500     proto_tree_add_item(path_id_tree, hf_openflow_datapath_mac, tvb, offset, 6, ENC_NA);
 501     offset+=6;
 502     proto_tree_add_item(path_id_tree, hf_openflow_datapath_impl, tvb, offset, 2, ENC_BIG_ENDIAN);
 503     offset+=2;
 504
 505     proto_tree_add_item(tree, hf_openflow_n_buffers, tvb, offset, 4, ENC_BIG_ENDIAN);
 506     offset+=4;
 507
 508     proto_tree_add_item(tree, hf_openflow_n_tables, tvb, offset, 1, ENC_BIG_ENDIAN);
 509     offset++;
 510
 511     ti = proto_tree_add_item(tree, hf_openflow_capabilities, tvb, offset, 4, ENC_BIG_ENDIAN);
 512     cap_tree = proto_item_add_subtree(ti, ett_openflow_cap);
 513
 514     /* Dissect flags */
 515     proto_tree_add_item(cap_tree, hf_openflow_cap_flow_stats, tvb, offset, 4, ENC_BIG_ENDIAN);
 516     proto_tree_add_item(cap_tree, hf_openflow_table_stats,    tvb, offset, 4, ENC_BIG_ENDIAN);
 517     proto_tree_add_item(cap_tree, hf_openflow_port_stats,     tvb, offset, 4, ENC_BIG_ENDIAN);
 518     proto_tree_add_item(cap_tree, hf_openflow_group_stats,    tvb, offset, 4, ENC_BIG_ENDIAN);
 519     proto_tree_add_item(cap_tree, hf_openflow_ip_reasm,       tvb, offset, 4, ENC_BIG_ENDIAN);
 520     proto_tree_add_item(cap_tree, hf_openflow_queue_stats,    tvb, offset, 4, ENC_BIG_ENDIAN);
 521     proto_tree_add_item(cap_tree, hf_openflow_port_blocked,   tvb, offset, 4, ENC_BIG_ENDIAN);
 522     offset+=4;
 523
 524     ti = proto_tree_add_item(tree, hf_openflow_actions, tvb, offset, 4, ENC_BIG_ENDIAN);
 525     act_tree = proto_item_add_subtree(ti, ett_openflow_act);
 526     /* Dissect flags */
 527     proto_tree_add_item(act_tree, hf_openflow_output, tvb, offset, 4, ENC_BIG_ENDIAN);
 528     proto_tree_add_item(act_tree, hf_openflow_set_vlan_vid, tvb, offset, 4, ENC_BIG_ENDIAN);
 529     proto_tree_add_item(act_tree, hf_openflow_set_vlan_pcp, tvb, offset, 4, ENC_BIG_ENDIAN);
 530     proto_tree_add_item(act_tree, hf_openflow_strip_vlan, tvb, offset, 4, ENC_BIG_ENDIAN);
 531     proto_tree_add_item(act_tree, hf_openflow_set_dl_src, tvb, offset, 4, ENC_BIG_ENDIAN);
 532     proto_tree_add_item(act_tree, hf_openflow_set_dl_dst, tvb, offset, 4, ENC_BIG_ENDIAN);
 533     proto_tree_add_item(act_tree, hf_openflow_set_nw_src, tvb, offset, 4, ENC_BIG_ENDIAN);
 534     proto_tree_add_item(act_tree, hf_openflow_set_nw_dst, tvb, offset, 4, ENC_BIG_ENDIAN);
 535     proto_tree_add_item(act_tree, hf_openflow_set_nw_tos, tvb, offset, 4, ENC_BIG_ENDIAN);
 536     proto_tree_add_item(act_tree, hf_openflow_set_tp_src, tvb, offset, 4, ENC_BIG_ENDIAN);
 537     proto_tree_add_item(act_tree, hf_openflow_set_tp_dst, tvb, offset, 4, ENC_BIG_ENDIAN);
 538     proto_tree_add_item(act_tree, hf_openflow_enqueue, tvb, offset, 4, ENC_BIG_ENDIAN);
 539     offset+=4;
 540
 541     length_remaining = length-32;
 542     if(length_remaining > 0){
 543         guint16 num_ports = length_remaining/48;
 544         int i;
 545         if ((length_remaining&0x003f) != 0){
 546             /* protocol_error */
 547         }
 548         for(i=0; i<num_ports ;i++){
 549             proto_tree *port_tree;
 550
 551             ti = proto_tree_add_text(tree, tvb, offset, 48, "Port data %u",i+1);
 552             port_tree = proto_item_add_subtree(ti, ett_openflow_port);
 553             dissect_openflow_phy_port(tvb, pinfo, port_tree, offset);
 554             offset+=48;
 555         }
 556     }
 557
 558 }
 559
 560
 561 static void
 562 dissect_openflow_switch_config(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 length _U_)
 563 {
 564
 565     /* ofp_config_flags */
 566     proto_tree_add_item(tree, hf_openflow_config_flags, tvb, offset, 2, ENC_BIG_ENDIAN);
 567     offset+=2;
 568     /* miss_send_len */
 569     proto_tree_add_item(tree, hf_openflow_miss_send_len, tvb, offset, 2, ENC_BIG_ENDIAN);
 570     /*offset+=2;*/
 571
 572 }
 573
 574 #define OFPR_NO_MATCH       0        /* No matching flow (table-miss flow entry). */
 575 #define OFPR_ACTION         1        /* Action explicitly output to controller. */
 576 #define OFPR_INVALID_TTL    2        /* Packet has invalid TTL */
 577
 578 static const value_string openflow_reason_values[] = {
 579     { OFPR_NO_MATCH,    "No matching flow (table-miss flow entry)" },
 580     { OFPR_ACTION,      "Action explicitly output to controller" },
 581     { OFPR_INVALID_TTL, "Packet has invalid TTL" },
 582     { 0, NULL }
 583 };
 584
 585 static void
 586 dissect_openflow_pkt_in(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 length)
 587 {
 588     tvbuff_t *next_tvb;
 589
 590     /* uint32_t buffer_id;  ID assigned by datapath. */
 591     proto_tree_add_item(tree, hf_openflow_buffer_id, tvb, offset, 4, ENC_BIG_ENDIAN);
 592     offset+=4;
 593     /* uint16_t total_len;  Full length of frame. */
 594     proto_tree_add_item(tree, hf_openflow_total_len, tvb, offset, 2, ENC_BIG_ENDIAN);
 595     offset+=2;
 596
 597     /* uint16_t in_port;  Port on which frame was received. */
 598     proto_tree_add_item(tree, hf_openflow_in_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 599     offset+=2;
 600
 601     /* uint8_t reason; Reason packet is being sent (one of OFPR_*) */
 602     proto_tree_add_item(tree, hf_openflow_reason, tvb, offset, 1, ENC_BIG_ENDIAN);
 603     offset++;
 604
 605     proto_tree_add_item(tree, hf_openflow_padd8, tvb, offset, 1, ENC_BIG_ENDIAN);
 606     offset+=1;
 607
 608     /*proto_tree_add_text(tree, tvb, offset, length-offset, "Offset=%u, remaining %u", offset, length-offset);*/
 609     next_tvb = tvb_new_subset(tvb, offset, length-offset, length-offset);
 610     call_dissector(eth_withoutfcs_handle, next_tvb, pinfo, tree);
 611
 612 }
 613
 614 static void
 615 dissect_openflow_pkt_out(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint16 length _U_)
 616 {
 617     tvbuff_t *next_tvb;
 618     gint32 buffer_id;
 619
 620     /* uint32_t buffer_id;  ID assigned by datapath. */
 621     buffer_id = tvb_get_ntohl(tvb, offset);
 622     proto_tree_add_item(tree, hf_openflow_buffer_id, tvb, offset, 4, ENC_BIG_ENDIAN);
 623     offset+=4;
 624
 625     /* uint32_t in_port; Packet's input port or OFPP_CONTROLLER. */
 626     proto_tree_add_item(tree, hf_openflow_in_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 627     offset+=2;
 628
 629     /* uint16_t actions_len;  Size of action array in bytes. */
 630     proto_tree_add_item(tree, hf_openflow_actions_len, tvb, offset, 2, ENC_BIG_ENDIAN);
 631     offset+=2;
 632
 633     /* struct ofp_action_header actions[0];  Action list. */
 634     offset = dissect_openflow_action_header(tvb, pinfo, tree, offset);
 635     /* Packet data. The length is inferred
 636        from the length field in the header.
 637        (Only meaningful if buffer_id == -1.)
 638      */
 639     if(buffer_id == -1){
 640         /* proto_tree_add_text(tree, tvb, offset, -1, "Packet data"); */
 641         next_tvb = tvb_new_subset(tvb, offset, length-offset, length-offset);
 642         call_dissector(eth_withoutfcs_handle, next_tvb, pinfo, tree);
 643     }
 644 }
 645
 646 #define OFPFC_ADD             0 /* New flow. */
 647 #define OFPFC_MODIFY          1 /* Modify all matching flows. */
 648 #define OFPFC_MODIFY_STRICT   2 /* Modify entry strictly matching wildcards */
 649 #define OFPFC_DELETE          3 /* Delete all matching flows. */
 650 #define OFPFC_DELETE_STRICT   4 /* Strictly match wildcards and priority. */
 651
 652 static const value_string openflow_command_values[] = {
 653     { OFPFC_ADD,            "New flow" },
 654     { OFPFC_MODIFY,         "Modify all matching flows" },
 655     { OFPFC_MODIFY_STRICT,  "Modify entry strictly matching wildcards" },
 656     { OFPFC_DELETE,         "Delete all matching flows" },
 657     { OFPFC_DELETE_STRICT,  "Strictly match wildcards and priority" },
 658     { 0, NULL }
 659 };
 660
 661 static void
 662 dissect_openflow_flow_mod(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, guint16 length _U_)
 663 {
 664
 665     /* struct ofp_match match;  Fields to match */
 666     offset = dissect_openflow_ofp_match_v1(tvb, pinfo, tree, offset);
 667
 668     /* uint64_t cookie; Opaque controller-issued identifier. */
 669     proto_tree_add_item(tree, hf_openflow_cookie, tvb, offset, 8, ENC_BIG_ENDIAN);
 670     offset+=8;
 671
 672     /* uint16_t command;  One of OFPFC_*. */
 673     proto_tree_add_item(tree, hf_openflow_command, tvb, offset, 2, ENC_BIG_ENDIAN);
 674     offset+=2;
 675
 676     /* uint16_t idle_timeout;  Idle time before discarding (seconds). */
 677     proto_tree_add_item(tree, hf_openflow_idle_timeout, tvb, offset, 2, ENC_BIG_ENDIAN);
 678     offset+=2;
 679     /* uint16_t hard_timeout; Max time before discarding (seconds). */
 680     proto_tree_add_item(tree, hf_openflow_hard_timeout, tvb, offset, 2, ENC_BIG_ENDIAN);
 681     offset+=2;
 682     /* uint16_t priority; Priority level of flow entry. */
 683     proto_tree_add_item(tree, hf_openflow_priority, tvb, offset, 2, ENC_BIG_ENDIAN);
 684     offset+=2;
 685     /* uint32_t buffer_id;  Buffered packet to apply to, or OFP_NO_BUFFER.
 686        Not meaningful for OFPFC_DELETE*.
 687      */
 688     proto_tree_add_item(tree, hf_openflow_buffer_id, tvb, offset, 4, ENC_BIG_ENDIAN);
 689     offset+=4;
 690     /* uint32_t out_port; For OFPFC_DELETE* commands, require
 691        matching entries to include this as an output port. A value of OFPP_ANY
 692        indicates no restriction.
 693        */
 694     proto_tree_add_item(tree, hf_openflow_out_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 695     offset+=2;
 696
 697     /* uint16_t flags; One of OFPFF_*. */
 698     proto_tree_add_item(tree, hf_openflow_flags, tvb, offset, 2, ENC_BIG_ENDIAN);
 699     /*offset+=2;*/
 700 }
 701
 702 static int
 703 dissect_openflow_v1(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
 704 {
 705     proto_item *ti;
 706     proto_tree *openflow_tree;
 707     guint offset = 0;
 708     guint8 type;
 709     guint16 length;
 710
 711     type    = tvb_get_guint8(tvb, 1);
 712
 713     col_append_fstr(pinfo->cinfo, COL_INFO, "Type: %s",
 714                   val_to_str_const(type, openflow_1_0_type_values, "Unknown message type"));
 715
 716     /* Stop the Ethernet frame from overwriting the columns */
 717     if((type == OFPT_1_0_PACKET_IN) || (type == OFPT_1_0_PACKET_OUT)){
 718         col_set_writable(pinfo->cinfo, FALSE);
 719     }
 720
 721     /* Create display subtree for the protocol */
 722     ti = proto_tree_add_item(tree, proto_openflow_v1, tvb, 0, -1, ENC_NA);
 723     openflow_tree = proto_item_add_subtree(ti, ett_openflow);
 724
 725     /* A.1 OpenFlow Header. */
 726     /* OFP_VERSION. */
 727     proto_tree_add_item(openflow_tree, hf_openflow_version, tvb, offset, 1, ENC_BIG_ENDIAN);
 728     offset++;
 729
 730     /* One of the OFPT_ constants. */
 731     proto_tree_add_item(openflow_tree, hf_openflow_1_0_type, tvb, offset, 1, ENC_BIG_ENDIAN);
 732     offset++;
 733
 734     /* Length including this ofp_header. */
 735     length = tvb_get_ntohs(tvb, offset);
 736     proto_tree_add_item(openflow_tree, hf_openflow_length, tvb, offset, 2, ENC_BIG_ENDIAN);
 737     offset+=2;
 738
 739     /* Transaction id associated with this packet. Replies use the same id as was in the request
 740      * to facilitate pairing.
 741      */
 742     proto_tree_add_item(openflow_tree, hf_openflow_xid, tvb, offset, 4, ENC_BIG_ENDIAN);
 743     offset+=4;
 744
 745     switch(type){
 746     case OFPT_1_0_HELLO: /* 0 */
 747         /* 5.5.1 Hello
 748          * The OFPT_HELLO message has no body;
 749          */
 750         break;
 751     case OFPT_1_0_FEATURES_REQUEST: /* 5 */
 752         /* 5.3.1 Handshake
 753          * Upon TLS session establishment, the controller sends an OFPT_FEATURES_REQUEST
 754          * message. This message does not contain a body beyond the OpenFlow header.
 755          */
 756         break;
 757     case OFPT_1_0_FEATURES_REPLY: /* 6 */
 758         dissect_openflow_features_reply_v1(tvb, pinfo, openflow_tree, offset, length);
 759         break;
 760     case OFPT_1_0_GET_CONFIG_REQUEST: /* 7 */
 761         /* A.3.2 There is no body for OFPT_GET_CONFIG_REQUEST beyond the OpenFlow header. */
 762         break;
 763     case OFPT_1_0_GET_CONFIG_REPLY: /* 8 */
 764         /* Fall trough */
 765     case OFPT_1_0_SET_CONFIG: /* 9 */
 766         dissect_openflow_switch_config(tvb, pinfo, openflow_tree, offset, length);
 767         break;
 768     case OFPT_1_0_PACKET_IN: /* 10 */
 769         dissect_openflow_pkt_in(tvb, pinfo, openflow_tree, offset, length);
 770         break;
 771     case OFPT_1_0_PACKET_OUT: /* 13 */
 772         dissect_openflow_pkt_out(tvb, pinfo, openflow_tree, offset, length);
 773         break;
 774     case OFPT_1_0_FLOW_MOD: /* 14 */
 775         dissect_openflow_flow_mod(tvb, pinfo, openflow_tree, offset, length);
 776         break;
 777     default:
 778         if(length>8){
 779             proto_tree_add_text(tree, tvb, offset, -1, "Message data not dissected yet");
 780         }
 781         break;
 782     }
 783
 784     return tvb_reported_length(tvb);
 785
 786 }
 787
 788
 789 /*
 790  * Register the protocol with Wireshark.
 791  */
 792 void
 793 proto_register_openflow_v1(void)
 794 {
 795     static hf_register_info hf[] = {
 796         { &hf_openflow_version,
 797             { "Version", "openflow.version",
 798                FT_UINT8, BASE_HEX, VALS(openflow_version_values), 0x7f,
 799                NULL, HFILL }
 800         },
 801         { &hf_openflow_1_0_type,
 802             { "Type", "openflow_1_0.type",
 803                FT_UINT8, BASE_DEC, VALS(openflow_1_0_type_values), 0x0,
 804                NULL, HFILL }
 805         },
 806         { &hf_openflow_xid,
 807             { "Transaction ID", "openflow.xid",
 808                FT_UINT32, BASE_DEC, NULL, 0x0,
 809                NULL, HFILL }
 810         },
 811         { &hf_openflow_length,
 812             { "Length", "openflow.length",
 813                FT_UINT16, BASE_DEC, NULL, 0x0,
 814                NULL, HFILL }
 815         },
 816         { &hf_openflow_datapath_id,
 817             { "Datapath unique ID", "openflow.datapath_id",
 818                FT_UINT64, BASE_HEX, NULL, 0x0,
 819                NULL, HFILL }
 820         },
 821         { &hf_openflow_datapath_mac,
 822             { "MAC addr", "openflow.datapath_mac",
 823                FT_ETHER, BASE_NONE, NULL, 0x0,
 824                NULL, HFILL }
 825         },
 826         { &hf_openflow_datapath_impl,
 827             { "Implementers part", "openflow.datapath_imp",
 828                FT_UINT16, BASE_HEX, NULL, 0x0,
 829                NULL, HFILL }
 830         },
 831         { &hf_openflow_n_buffers,
 832             { "n_buffers", "openflow.n_buffers",
 833                FT_UINT32, BASE_DEC, NULL, 0x0,
 834                NULL, HFILL }
 835         },
 836         { &hf_openflow_n_tables,
 837             { "n_tables", "openflow.n_tables",
 838                FT_UINT8, BASE_DEC, NULL, 0x0,
 839                NULL, HFILL }
 840         },
 841 #if 0
 842         { &hf_openflow_auxiliary_id,
 843             { "auxiliary_id", "openflow.auxiliary_id",
 844                FT_UINT8, BASE_DEC, NULL, 0x0,
 845                NULL, HFILL }
 846         },
 847 #endif
 848 #if 0
 849         { &hf_openflow_pad3,
 850             { "Padding", "openflow.pad3",
 851                FT_UINT24, BASE_DEC, NULL, 0x0,
 852                NULL, HFILL }
 853         },
 854 #endif
 855         { &hf_openflow_capabilities,
 856             { "capabilities", "openflow.capabilities",
 857                FT_UINT32, BASE_HEX, NULL, 0x0,
 858                NULL, HFILL }
 859         },
 860         { &hf_openflow_actions,
 861             { "actions", "openflow.actions",
 862                FT_UINT32, BASE_HEX, NULL, 0x0,
 863                NULL, HFILL }
 864         },
 865 #if 0
 866         { &hf_openflow_reserved32,
 867             { "Reserved", "openflow.reserved32",
 868                FT_UINT32, BASE_DEC, NULL, 0x0,
 869                NULL, HFILL }
 870         },
 871 #endif
 872         { &hf_openflow_cap_flow_stats,
 873             { "Flow statistics", "openflow.flow_stats",
 874                FT_BOOLEAN, 32, NULL, OFPC_FLOW_STATS,
 875                NULL, HFILL }
 876         },
 877         { &hf_openflow_table_stats,
 878             { "Table statistics", "openflow.table_stats",
 879                FT_BOOLEAN, 32, NULL, OFPC_TABLE_STATS,
 880                NULL, HFILL }
 881         },
 882         { &hf_openflow_port_stats,
 883             { "Port statistics", "openflow.port_stats",
 884                FT_BOOLEAN, 32, NULL,  OFPC_PORT_STATS,
 885                NULL, HFILL }
 886         },
 887         { &hf_openflow_group_stats,
 888             { "Group statistics", "openflow.group_stats",
 889                FT_BOOLEAN, 32, NULL, OFPC_GROUP_STATS,
 890                NULL, HFILL }
 891         },
 892         { &hf_openflow_ip_reasm,
 893             { "Can reassemble IP fragments", "openflow.ip_reasm",
 894                FT_BOOLEAN, 32, NULL, OFPC_IP_REASM,
 895                NULL, HFILL }
 896         },
 897         { &hf_openflow_queue_stats,
 898             { "Queue statistics", "openflow.queue_stats",
 899                FT_BOOLEAN, 32, NULL, OFPC_QUEUE_STATS,
 900                NULL, HFILL }
 901         },
 902         { &hf_openflow_port_blocked,
 903             { "Switch will block looping ports", "openflow.port_blocked",
 904                FT_BOOLEAN, 32, NULL, OFPC_PORT_BLOCKED,
 905                NULL, HFILL }
 906         },
 907         { &hf_openflow_output,
 908             { "Output to switch port", "openflow.output",
 909                FT_BOOLEAN, 32, NULL, OFPAT_OUTPUT_MASK,
 910                NULL, HFILL }
 911         },
 912         { &hf_openflow_set_vlan_vid,
 913             { "Set the 802.1q VLAN id", "openflow.set_vlan_vid",
 914                FT_BOOLEAN, 32, NULL, OFPAT_SET_VLAN_VID_MASK,
 915                NULL, HFILL }
 916         },
 917         { &hf_openflow_set_vlan_pcp,
 918             { "Set the 802.1q priority", "openflow.set_vlan_pcp",
 919                FT_BOOLEAN, 32, NULL, OFPAT_SET_VLAN_PCP_MASK,
 920                NULL, HFILL }
 921         },
 922         { &hf_openflow_strip_vlan,
 923             { "Strip the 802.1q header", "openflow.strip_vlan",
 924                FT_BOOLEAN, 32, NULL, OFPAT_STRIP_VLAN_MASK,
 925                NULL, HFILL }
 926         },
 927         { &hf_openflow_set_dl_src,
 928             { "Ethernet source address", "openflow.set_dl_src",
 929                FT_BOOLEAN, 32, NULL, OFPAT_SET_DL_SRC_MASK,
 930                NULL, HFILL }
 931         },
 932         { &hf_openflow_set_dl_dst,
 933             { "Ethernet destination address", "openflow.set_dl_ds",
 934                FT_BOOLEAN, 32, NULL, OFPAT_SET_DL_DST_MASK,
 935                NULL, HFILL }
 936         },
 937         { &hf_openflow_set_nw_src,
 938             { "IP source address", "openflow.set_nw_src",
 939                FT_BOOLEAN, 32, NULL, OFPAT_SET_NW_SRC_MASK,
 940                NULL, HFILL }
 941         },
 942         { &hf_openflow_set_nw_dst,
 943             { "IP destination address", "openflow.set_nw_ds",
 944                FT_BOOLEAN, 32, NULL, OFPAT_SET_NW_DST_MASK,
 945                NULL, HFILL }
 946         },
 947         { &hf_openflow_set_nw_tos,
 948             { "IP ToS (DSCP field, 6 bits)", "openflow.set_nw_tos",
 949                FT_BOOLEAN, 32, NULL, OFPAT_SET_NW_TOS_MASK,
 950                NULL, HFILL }
 951         },
 952         { &hf_openflow_set_tp_src,
 953             { "TCP/UDP source port", "openflow.set_tp_src",
 954                FT_BOOLEAN, 32, NULL, OFPAT_SET_TP_SRC_MASK,
 955                NULL, HFILL }
 956         },
 957         { &hf_openflow_set_tp_dst,
 958             { "TCP/UDP destination port", "openflow.set_tp_dst",
 959                FT_BOOLEAN, 32, NULL, OFPAT_SET_TP_DST_MASK,
 960                NULL, HFILL }
 961         },
 962         { &hf_openflow_enqueue,
 963             { "Output to queue", "openflow.enqueue",
 964                FT_BOOLEAN, 32, NULL, OFPAT_ENQUEUE_MASK,
 965                NULL, HFILL }
 966         },
 967         { &hf_openflow_port_no,
 968             { "Port number", "openflow.port_no",
 969                FT_UINT16, BASE_DEC, NULL, 0x0,
 970                NULL, HFILL }
 971         },
 972         { &hf_openflow_hw_addr,
 973             { "HW Address", "openflow.hw_add",
 974                FT_ETHER, BASE_NONE, NULL, 0x0,
 975                NULL, HFILL }
 976         },
 977         { &hf_openflow_port_name,
 978             { "Name", "openflow.hw_add",
 979                FT_STRING, BASE_NONE, NULL, 0x0,
 980                NULL, HFILL }
 981         },
 982         { &hf_openflow_port_config,
 983             { "Config flags", "openflow.port_config",
 984                FT_UINT32, BASE_HEX, NULL, 0x0,
 985                NULL, HFILL }
 986         },
 987         { &hf_openflow_port_state,
 988             { "State flags", "openflow.port_state",
 989                FT_UINT32, BASE_HEX, NULL, 0x0,
 990                NULL, HFILL }
 991         },
 992         { &hf_openflow_port_curr,
 993             { "Current features", "openflow.port_curr",
 994                FT_UINT32, BASE_HEX, NULL, 0x0,
 995                NULL, HFILL }
 996         },
 997         { &hf_openflow_port_advertised,
 998             { "Advertised features", "openflow.port_advertised",
 999                FT_UINT32, BASE_HEX, NULL, 0x0,
1000                NULL, HFILL }
1001         },
1002         { &hf_openflow_port_supported,
1003             { "Features supported", "openflow.port_supported",
1004                FT_UINT32, BASE_HEX, NULL, 0x0,
1005                NULL, HFILL }
1006         },
1007         { &hf_openflow_port_peer,
1008             { "Features advertised by peer", "openflow.port_peer",
1009                FT_UINT32, BASE_HEX, NULL, 0x0,
1010                NULL, HFILL }
1011         },
1012         { &hf_openflow_port_down,
1013             { "Port is administratively down", "openflow.port_down",
1014                FT_BOOLEAN, 32, NULL, OFPPC_PORT_DOWN,
1015                NULL, HFILL }
1016         },
1017         { &hf_openflow_no_stp,
1018             { "Disable 802.1D spanning tree on port", "openflow.no_stp",
1019                FT_BOOLEAN, 32, NULL, OFPPC_NO_STP,
1020                NULL, HFILL }
1021         },
1022         { &hf_openflow_no_recv,
1023             { "Drop all packets except 802.1D spanning tree packets", "openflow.no_recv",
1024                FT_BOOLEAN, 32, NULL, OFPPC_NO_RECV,
1025                NULL, HFILL }
1026         },
1027         { &hf_openflow_no_recv_stp,
1028             { "Drop received 802.1D STP packets", "openflow.no_recv",
1029                FT_BOOLEAN, 32, NULL, OFPPC_NO_RECV_STP,
1030                NULL, HFILL }
1031         },
1032         { &hf_openflow_no_flood,
1033             { "Do not include this port when flooding", "openflow.no_flood",
1034                FT_BOOLEAN, 32, NULL, OFPPC_NO_FLOOD,
1035                NULL, HFILL }
1036         },
1037         { &hf_openflow_no_fwd,
1038             { "Drop packets forwarded to port", "openflow.no_fwd",
1039                FT_BOOLEAN, 32, NULL, OFPPC_NO_FWD,
1040                NULL, HFILL }
1041         },
1042         { &hf_openflow_no_packet_in,
1043             { "Do not send packet-in msgs for port", "openflow.no_packet_in",
1044                FT_BOOLEAN, 32, NULL, OFPPC_NO_PACKET_IN,
1045                NULL, HFILL }
1046         },
1047         { &hf_openflow_link_down,
1048             { "No physical link present", "openflow.link_down",
1049                FT_BOOLEAN, 32, NULL, OFPPS_LINK_DOWN,
1050                NULL, HFILL }
1051         },
1052         { &hf_openflow_10mb_hd,
1053             { "10 Mb half-duplex rate support", "openflow.10mb_hd",
1054                FT_BOOLEAN, 32, NULL, OFPPF_10MB_HD,
1055                NULL, HFILL }
1056         },
1057         { &hf_openflow_10mb_fd,
1058             { "10 Mb full-duplex rate support", "openflow.10mb_fd",
1059                FT_BOOLEAN, 32, NULL, OFPPF_10MB_FD,
1060                NULL, HFILL }
1061         },
1062         { &hf_openflow_100mb_hd,
1063             { "100 Mb half-duplex rate support", "openflow.100mb_hd",
1064                FT_BOOLEAN, 32, NULL, OFPPF_100MB_HD,
1065                NULL, HFILL }
1066         },
1067         { &hf_openflow_100mb_fd,
1068             { "100 Mb full-duplex rate support", "openflow.100mb_0fd",
1069                FT_BOOLEAN, 32, NULL, OFPPF_100MB_FD,
1070                NULL, HFILL }
1071         },
1072         { &hf_openflow_1gb_hd,
1073             { "1 Gb half-duplex rate support", "openflow.1gb_hd",
1074                FT_BOOLEAN, 32, NULL, OFPPF_1GB_HD,
1075                NULL, HFILL }
1076         },
1077         { &hf_openflow_1gb_fd,
1078             { "1 Gb full-duplex rate support", "openflow.1gb_fd",
1079                FT_BOOLEAN, 32, NULL, OFPPF_1GB_FD,
1080                NULL, HFILL }
1081         },
1082         { &hf_openflow_10gb_fd,
1083             { "10 Gb full-duplex rate support", "openflow.10gb_fd",
1084                FT_BOOLEAN, 32, NULL, OFPPF_10GB_FD,
1085                NULL, HFILL }
1086         },
1087         { &hf_openflow_copper,
1088             { "Copper medium", "openflow.copper",
1089                FT_BOOLEAN, 32, NULL, OFPPF_COPPER,
1090                NULL, HFILL }
1091         },
1092         { &hf_openflow_fiber,
1093             { "Fiber medium", "openflow.fiber",
1094                FT_BOOLEAN, 32, NULL, OFPPF_FIBER,
1095                NULL, HFILL }
1096         },
1097         { &hf_openflow_autoneg,
1098             { "Auto-negotiation", "openflow.autoneg",
1099                FT_BOOLEAN, 32, NULL, OFPPF_AUTONEG,
1100                NULL, HFILL }
1101         },
1102         { &hf_openflow_pause,
1103             { "Pause", "openflow.pause",
1104                FT_BOOLEAN, 32, NULL, OFPPF_PAUSE,
1105                NULL, HFILL }
1106         },
1107         { &hf_openflow_pause_asym,
1108             { "Asymmetric pause", "openflow.pause_asym",
1109                FT_BOOLEAN, 32, NULL, OFPPF_PAUSE_ASYM,
1110                NULL, HFILL }
1111         },
1112         { &hf_openflow_config_flags,
1113             { "Config flags", "openflow.config_flags",
1114                FT_UINT16, BASE_HEX, NULL, 0x0,
1115                NULL, HFILL }
1116         },
1117         { &hf_openflow_miss_send_len,
1118             { "Max bytes of packet", "openflow.miss_send_len",
1119                FT_UINT16, BASE_HEX, NULL, 0x0,
1120                NULL, HFILL }
1121         },
1122         { &hf_openflow_buffer_id,
1123             { "Buffer Id", "openflow.buffer_id",
1124                FT_UINT32, BASE_HEX, NULL, 0x0,
1125                NULL, HFILL }
1126         },
1127         { &hf_openflow_total_len,
1128             { "Total length", "openflow.total_len",
1129                FT_UINT16, BASE_DEC, NULL, 0x0,
1130                NULL, HFILL }
1131         },
1132         { &hf_openflow_in_port,
1133             { "In port", "openflow.in_port",
1134                FT_UINT16, BASE_DEC, NULL, 0x0,
1135                NULL, HFILL }
1136         },
1137         { &hf_openflow_reason,
1138             { "Reason", "openflow.reason",
1139                FT_UINT8, BASE_DEC, VALS(openflow_reason_values), 0x0,
1140                NULL, HFILL }
1141         },
1142 #if 0
1143         { &hf_openflow_table_id,
1144             { "Table Id", "openflow.table_id",
1145                FT_UINT8, BASE_DEC, NULL, 0x0,
1146                NULL, HFILL }
1147         },
1148 #endif
1149         { &hf_openflow_cookie,
1150             { "Cookie", "openflow.cookie",
1151                FT_UINT64, BASE_HEX, NULL, 0x0,
1152                NULL, HFILL }
1153         },
1154 #if 0
1155         { &hf_openflow_cookie_mask,
1156             { "Cookie mask", "openflow.cookie",
1157                FT_UINT64, BASE_HEX, NULL, 0x0,
1158                NULL, HFILL }
1159         },
1160 #endif
1161         { &hf_openflow_padd8,
1162             { "Padding", "openflow.padding8",
1163                FT_UINT8, BASE_DEC, NULL, 0x0,
1164                NULL, HFILL }
1165         },
1166 #if 0
1167         { &hf_openflow_padd16,
1168             { "Padding", "openflow.padding16",
1169                FT_UINT16, BASE_DEC, NULL, 0x0,
1170                NULL, HFILL }
1171         },
1172 #endif
1173 #if 0
1174         { &hf_openflow_padd48,
1175             { "Padding", "openflow.padding48",
1176                FT_UINT64, BASE_DEC, NULL, 0x0,
1177                NULL, HFILL }
1178         },
1179 #endif
1180         { &hf_openflow_actions_len,
1181             { "Actions length", "openflow.actions_len",
1182                FT_UINT16, BASE_DEC, NULL, 0x0,
1183                NULL, HFILL }
1184         },
1185         { &hf_openflow_action_type,
1186             { "Actions type", "openflow.action_typ",
1187                FT_UINT16, BASE_DEC, VALS(openflow_action_values), 0x0,
1188                NULL, HFILL }
1189         },
1190         { &hf_openflow_action_len,
1191             { "Action length", "openflow.action_len",
1192                FT_UINT16, BASE_DEC, NULL, 0x0,
1193                NULL, HFILL }
1194         },
1195         { &hf_openflow_output_port,
1196             { "Output port", "openflow.output_port",
1197                FT_UINT16, BASE_DEC, NULL, 0x0,
1198                NULL, HFILL }
1199         },
1200         { &hf_openflow_max_len,
1201             { "Max length", "openflow.max_len",
1202                FT_UINT16, BASE_DEC, NULL, 0x0,
1203                NULL, HFILL }
1204         },
1205         { &hf_openflow_wildcards,
1206             { "Wildcards", "openflow.wildcards",
1207                FT_UINT32, BASE_DEC, NULL, 0x0,
1208                NULL, HFILL }
1209         },
1210         { &hf_openflow_command,
1211             { "Command", "openflow.command",
1212                FT_UINT16, BASE_DEC, VALS(openflow_command_values), 0x0,
1213                NULL, HFILL }
1214         },
1215         { &hf_openflow_eth_src,
1216             { "Ethernet source address", "openflow.eth_src",
1217                FT_ETHER, BASE_NONE, NULL, 0x0,
1218                NULL, HFILL }
1219         },
1220         { &hf_openflow_eth_dst,
1221             { "Ethernet destination address", "openflow.eth_src",
1222                FT_ETHER, BASE_NONE, NULL, 0x0,
1223                NULL, HFILL }
1224         },
1225         { &hf_openflow_dl_vlan,
1226             { "Input VLAN id", "openflow.dl_vlan",
1227                FT_UINT16, BASE_DEC, NULL, 0x0,
1228                NULL, HFILL }
1229         },
1230         { &hf_openflow_dl_vlan_pcp,
1231             { "Input VLAN priority", "openflow.dl_vlan_pcp",
1232                FT_UINT8, BASE_DEC, NULL, 0x0,
1233                NULL, HFILL }
1234         },
1235         { &hf_openflow_idle_timeout,
1236             { "Idle time-out", "openflow.idle_timeout",
1237                FT_UINT16, BASE_DEC, NULL, 0x0,
1238                NULL, HFILL }
1239         },
1240         { &hf_openflow_hard_timeout,
1241             { "hard time-out", "openflow.hard_timeout",
1242                FT_UINT16, BASE_DEC, NULL, 0x0,
1243                NULL, HFILL }
1244         },
1245         { &hf_openflow_priority,
1246             { "Priority", "openflow.priority",
1247                FT_UINT16, BASE_DEC, NULL, 0x0,
1248                NULL, HFILL }
1249         },
1250         { &hf_openflow_out_port,
1251             { "Out port", "openflow.out_port",
1252                FT_UINT32, BASE_DEC, NULL, 0x0,
1253                NULL, HFILL }
1254         },
1255 #if 0
1256         { &hf_openflow_out_group,
1257             { "Out group", "openflow.out_group",
1258                FT_UINT32, BASE_DEC, NULL, 0x0,
1259                NULL, HFILL }
1260         },
1261 #endif
1262         { &hf_openflow_flags,
1263             { "Flags", "openflow.flags",
1264                FT_UINT16, BASE_DEC, NULL, 0x0,
1265                NULL, HFILL }
1266         },
1267     };
1268
1269     static gint *ett[] = {
1270         &ett_openflow,
1271         &ett_openflow_path_id,
1272         &ett_openflow_cap,
1273         &ett_openflow_act,
1274         &ett_openflow_port,
1275         &ett_openflow_port_cnf,
1276         &ett_openflow_port_state,
1277         &ett_openflow_port_cf
1278     };
1279
1280     /* Register the protocol name and description */
1281     proto_openflow_v1 = proto_register_protocol("OpenFlow 1.0",
1282             "openflow_v1", "openflow_v1");
1283
1284     new_register_dissector("openflow_v1", dissect_openflow_v1, proto_openflow_v1);
1285
1286     eth_withoutfcs_handle = find_dissector("eth_withoutfcs");
1287
1288     /* Required function calls to register the header fields and subtrees */
1289     proto_register_field_array(proto_openflow_v1, hf, array_length(hf));
1290     proto_register_subtree_array(ett, array_length(ett));
1291 }