epan/dissectors/packet-dcerpc-epm.c

   1 /* packet-dcerpc-epm.c
   2  * Routines for dcerpc endpoint mapper dissection
   3  * Copyright 2001, Todd Sabin <tas@webspan.net>
   4  *
   5  * $Id$
   6  *
   7  * Wireshark - Network traffic analyzer
   8  * By Gerald Combs <gerald@wireshark.org>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * as published by the Free Software Foundation; either version 2
  14  * of the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  24  */
  25
  26 #ifdef HAVE_CONFIG_H
  27 #include "config.h"
  28 #endif
  29
  30 #include <glib.h>
  31 #include <epan/packet.h>
  32 #include <epan/expert.h>
  33 #include "packet-dcerpc.h"
  34 #include "packet-dcerpc-nt.h"
  35
  36
  37 static int proto_epm3 = -1;
  38 static int proto_epm4 = -1;
  39
  40 static int hf_epm_opnum = -1;
  41 static int hf_epm_inquiry_type = -1;
  42 static int hf_epm_object = -1;
  43 static int hf_epm_if_id = -1;
  44 static int hf_epm_ver_maj = -1;
  45 static int hf_epm_ver_min = -1;
  46 static int hf_epm_ver_opt = -1;
  47 static int hf_epm_hnd = -1;
  48 static int hf_epm_max_ents = -1;
  49 static int hf_epm_num_ents = -1;
  50 static int hf_epm_uuid = -1;
  51 static int hf_epm_tower_length = -1;
  52 static int hf_epm_tower_data = -1;
  53 static int hf_epm_max_towers = -1;
  54 static int hf_epm_num_towers = -1;
  55 static int hf_epm_rc = -1;
  56 static int hf_epm_replace = -1;
  57 static int hf_epm_tower_num_floors = -1;
  58 static int hf_epm_tower_rhs_len = -1;
  59 static int hf_epm_tower_lhs_len = -1;
  60 static int hf_epm_tower_proto_id = -1;
  61 static int hf_epm_annotation = -1;
  62 static int hf_epm_ann_offset = -1;
  63 static int hf_epm_ann_len = -1;
  64 static int hf_epm_proto_named_pipes = -1;
  65 static int hf_epm_proto_netbios_name = -1;
  66 static int hf_epm_proto_ip = -1;
  67 static int hf_epm_proto_udp_port = -1;
  68 static int hf_epm_proto_tcp_port = -1;
  69 static int hf_epm_proto_http_port = -1;
  70
  71 static gint ett_epm = -1;
  72 static gint ett_epm_tower_floor = -1;
  73 static gint ett_epm_entry = -1;
  74
  75 /* the UUID is identical for interface versions 3 and 4 */
  76 static e_uuid_t uuid_epm = { 0xe1af8308, 0x5d1f, 0x11c9, { 0x91, 0xa4, 0x08, 0x00, 0x2b, 0x14, 0xa0, 0xfa } };
  77 static guint16  ver_epm3 = 3;
  78 static guint16  ver_epm4 = 4;
  79
  80
  81
  82 static const value_string ep_service[] = {
  83     { 0, "rpc_c_ep_all_elts" },
  84     { 1, "rpc_c_ep_match_by_if" },
  85     { 2, "rpc_c_ep_match_by_obj" },
  86     { 3, "rpc_c_ep_match_by_both" },
  87     { 0, NULL },
  88 };
  89
  90 /* typedef struct {
  91       unsigned int tower_len,
  92       [size_is(tower_len)] char tower[];
  93    } twr_t, *twr_p_t;
  94 */
  95 static int epm_dissect_tower (tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep);
  96
  97
  98 static int
  99 epm_dissect_pointer_IF_ID(tvbuff_t *tvb, int offset,
 100                           packet_info *pinfo, proto_tree *tree,
 101                           guint8 *drep)
 102 {
 103     dcerpc_info *di;
 104
 105     di=pinfo->private_data;
 106     offset = dissect_ndr_uuid_t (tvb, offset, pinfo, tree, drep,
 107                                  di->hf_index, NULL);
 108     offset = dissect_ndr_uint16 (tvb, offset, pinfo, tree, drep,
 109                                  hf_epm_ver_maj, NULL);
 110     offset = dissect_ndr_uint16 (tvb, offset, pinfo, tree, drep,
 111                                  hf_epm_ver_min, NULL);
 112     return offset;
 113 }
 114
 115 static int
 116 epm_dissect_pointer_UUID(tvbuff_t *tvb, int offset,
 117                              packet_info *pinfo, proto_tree *tree,
 118                              guint8 *drep)
 119 {
 120     dcerpc_info *di;
 121
 122     di=pinfo->private_data;
 123     offset = dissect_ndr_uuid_t (tvb, offset, pinfo, tree, drep,
 124                                  di->hf_index, NULL);
 125     return offset;
 126 }
 127
 128 static int
 129 epm_dissect_ept_lookup_rqst (tvbuff_t *tvb, int offset,
 130                              packet_info *pinfo, proto_tree *tree,
 131                              guint8 *drep)
 132 {
 133     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 134                                  hf_epm_inquiry_type, NULL);
 135
 136     offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, drep,
 137                              epm_dissect_pointer_UUID, NDR_POINTER_PTR,
 138                              "Object:", hf_epm_object);
 139
 140     offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, drep,
 141                              epm_dissect_pointer_IF_ID, NDR_POINTER_PTR,
 142                              "Interface:", hf_epm_if_id);
 143
 144     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 145                                  hf_epm_ver_opt, NULL);
 146
 147     offset = dissect_ndr_ctx_hnd (tvb, offset, pinfo, tree, drep,
 148                                   hf_epm_hnd, NULL);
 149
 150     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 151                                  hf_epm_max_ents, NULL);
 152     return offset;
 153 }
 154
 155
 156 static int
 157 epm_dissect_ept_entry_t(tvbuff_t *tvb, int offset,
 158                              packet_info *pinfo, proto_tree *parent_tree,
 159                              guint8 *drep)
 160 {
 161     proto_item *item=NULL;
 162     proto_tree *tree=NULL;
 163     int old_offset=offset;
 164     guint32 len;
 165     dcerpc_info *di;
 166     const char *str;
 167
 168     di=pinfo->private_data;
 169     if(di->conformant_run){
 170         return offset;
 171     }
 172
 173     if(parent_tree){
 174         item = proto_tree_add_text(parent_tree, tvb, offset, -1, "Entry:");
 175         tree = proto_item_add_subtree(item, ett_epm_entry);
 176     }
 177
 178     offset = dissect_ndr_uuid_t (tvb, offset, pinfo, tree, drep,
 179                                  hf_epm_object, NULL);
 180
 181     offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, drep,
 182                              epm_dissect_tower, NDR_POINTER_PTR,
 183                              "Tower pointer:", -1);
 184
 185     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 186                                  hf_epm_ann_offset, NULL);
 187     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 188                                  hf_epm_ann_len, &len);
 189     str=tvb_get_ephemeral_string(tvb, offset, len);
 190     proto_tree_add_item(tree, hf_epm_annotation, tvb, offset, len, ENC_ASCII|ENC_NA);
 191     offset += len;
 192
 193     if(str&&str[0]){
 194         if(parent_tree) {
 195             proto_item_append_text(item, " Service:%s ", str);
 196             proto_item_append_text(tree->parent, " Service:%s ", str);
 197         }
 198         if (check_col(pinfo->cinfo, COL_INFO)) {
 199             col_append_fstr(pinfo->cinfo, COL_INFO, ", Service:%s", str);
 200         }
 201     }
 202
 203     proto_item_set_len(item, offset-old_offset);
 204     return offset;
 205 }
 206
 207 static int
 208 epm_dissect_ept_entry_t_array(tvbuff_t *tvb, int offset,
 209                              packet_info *pinfo, proto_tree *tree,
 210                              guint8 *drep)
 211 {
 212     offset = dissect_ndr_ucvarray(tvb, offset, pinfo, tree, drep,
 213                              epm_dissect_ept_entry_t);
 214
 215     return offset;
 216 }
 217
 218 static int
 219 epm_dissect_ept_lookup_resp (tvbuff_t *tvb, int offset,
 220                              packet_info *pinfo, proto_tree *tree,
 221                              guint8 *drep)
 222 {
 223     offset = dissect_ndr_ctx_hnd (tvb, offset, pinfo, tree, drep,
 224                                   hf_epm_hnd, NULL);
 225
 226     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 227                                  hf_epm_num_ents, NULL);
 228
 229     offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, drep,
 230                              epm_dissect_ept_entry_t_array, NDR_POINTER_REF,
 231                              "Entries:", -1);
 232
 233     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 234                                  hf_epm_rc, NULL);
 235
 236     return offset;
 237 }
 238
 239 static int
 240 epm_dissect_uuid (tvbuff_t *tvb, int offset,
 241                              packet_info *pinfo, proto_tree *tree,
 242                              guint8 *drep)
 243 {
 244     offset = dissect_ndr_uuid_t (tvb, offset, pinfo, tree, drep,
 245                                   hf_epm_uuid, NULL);
 246     return offset;
 247 }
 248
 249 #define PROTO_ID_OSI_OID        0x00
 250 #define PROTO_ID_DNA_SESSCTL    0x02
 251 #define PROTO_ID_DNA_SESSCTL_V3 0x03
 252 #define PROTO_ID_DNA_NSP        0x04
 253 #define PROTO_ID_OSI_TP4        0x05
 254 #define PROTO_ID_OSI_CLNS       0x06
 255 #define PROTO_ID_TCP            0x07
 256 #define PROTO_ID_UDP            0x08
 257 #define PROTO_ID_IP             0x09
 258 #define PROTO_ID_RPC_CL         0x0a
 259 #define PROTO_ID_RPC_CO         0x0b
 260 #define PROTO_ID_SPX            0x0c    /* from DCOM spec (is this correct?) */
 261 #define PROTO_ID_UUID           0x0d
 262 #define PROTO_ID_IPX            0x0e    /* from DCOM spec (is this correct?) */
 263 #define PROTO_ID_NAMED_PIPES    0x0f
 264 #define PROTO_ID_NAMED_PIPES_2  0x10
 265 #define PROTO_ID_NETBIOS        0x11
 266 #define PROTO_ID_NETBEUI        0x12
 267 #define PROTO_ID_NETWARE_SPX    0x13
 268 #define PROTO_ID_NETWARE_IPX    0x14
 269 #define PROTO_ID_ATALK_STREAM   0x16
 270 #define PROTO_ID_ATALK_DATAGRAM 0x17
 271 #define PROTO_ID_ATALK          0x18
 272 #define PROTO_ID_NETBIOS_2      0x19
 273 #define PROTO_ID_VINES_SPP      0x1a
 274 #define PROTO_ID_VINES_IPC      0x1b
 275 #define PROTO_ID_STREETTALK     0x1c
 276 #define PROTO_ID_HTTP           0x1f
 277 #define PROTO_ID_UNIX_DOMAIN    0x20
 278 #define PROTO_ID_NULL           0x21
 279 #define PROTO_ID_NETBIOS_3      0x22
 280
 281 static const value_string proto_id_vals[] = {
 282     { PROTO_ID_OSI_OID,         "OSI OID"},
 283     { PROTO_ID_DNA_SESSCTL,     "DNA Session Control"},
 284     { PROTO_ID_DNA_SESSCTL_V3,  "DNA Session Control V3"},
 285     { PROTO_ID_DNA_NSP,         "DNA NSP Transport"},
 286     { PROTO_ID_OSI_TP4,         "OSI TP4"},
 287     { PROTO_ID_OSI_CLNS,        "OSI CLNS or DNA Routing"},
 288     { PROTO_ID_TCP,             "DOD TCP"},
 289     { PROTO_ID_UDP,             "DOD UDP"},
 290     { PROTO_ID_IP,              "DOD IP"},
 291     { PROTO_ID_RPC_CL,          "RPC connectionless protocol"},
 292     { PROTO_ID_RPC_CO,          "RPC connection-oriented protocol"},
 293     { PROTO_ID_SPX,             "SPX?"},
 294     { PROTO_ID_UUID,            "UUID"},
 295     { PROTO_ID_IPX,             "IPX?"},
 296     { PROTO_ID_NAMED_PIPES,     "Named Pipes"},
 297     { PROTO_ID_NAMED_PIPES_2,   "Named Pipes"},
 298     { PROTO_ID_NETBIOS,         "NetBIOS"},
 299     { PROTO_ID_NETBEUI,         "NetBEUI"},
 300     { PROTO_ID_NETWARE_SPX,     "Netware SPX"},
 301     { PROTO_ID_NETWARE_IPX,     "Netware IPX"},
 302     { PROTO_ID_ATALK_STREAM,    "Appletalk Stream"},
 303     { PROTO_ID_ATALK_DATAGRAM,  "Appletalk Datagram"},
 304     { PROTO_ID_ATALK,           "Appletalk"},
 305     { PROTO_ID_NETBIOS_2,       "NetBIOS"},
 306     { PROTO_ID_VINES_SPP,       "Vines SPP"},
 307     { PROTO_ID_VINES_IPC,       "Vines IPC"},
 308     { PROTO_ID_STREETTALK,      "StreetTalk"},
 309     { PROTO_ID_HTTP,            "RPC over HTTP"},
 310     { PROTO_ID_UNIX_DOMAIN,     "Unix Domain Socket"},
 311     { PROTO_ID_NULL,            "null"},
 312     { PROTO_ID_NETBIOS_3,       "NetBIOS"},
 313     { 0, NULL},
 314 };
 315
 316
 317 /* XXX this function assumes LE encoding. can not use the NDR routines
 318    since they assume padding.
 319 */
 320 static int
 321 epm_dissect_tower_data (tvbuff_t *tvb, int offset,
 322                              packet_info *pinfo, proto_tree *tree,
 323                              guint8 *drep)
 324 {
 325     guint16 num_floors, i;
 326     dcerpc_info *di;
 327     const char *uuid_name;
 328     guint8   u8little_endian = DREP_LITTLE_ENDIAN;
 329
 330     di=pinfo->private_data;
 331     if(di->conformant_run){
 332         return offset;
 333     }
 334
 335     num_floors = tvb_get_letohs(tvb, offset);
 336     proto_tree_add_uint(tree, hf_epm_tower_num_floors, tvb, offset, 2, num_floors);
 337     offset += 2;
 338
 339     for(i=1;i<=num_floors;i++){
 340         proto_item *it = NULL;
 341         proto_tree *tr = NULL;
 342         int old_offset = offset;
 343         guint16 len;
 344         guint8 proto_id;
 345         e_uuid_t uuid;
 346         proto_item *pi;
 347
 348         it = proto_tree_add_text(tree, tvb, offset, 0, "Floor %d ", i);
 349         tr = proto_item_add_subtree(it, ett_epm_tower_floor);
 350
 351         len = tvb_get_letohs(tvb, offset);
 352         proto_tree_add_uint(tr, hf_epm_tower_lhs_len, tvb, offset, 2, len);
 353         offset += 2;
 354
 355         proto_id = tvb_get_guint8(tvb, offset);
 356         proto_tree_add_uint(tr, hf_epm_tower_proto_id, tvb, offset, 1, proto_id);
 357
 358         switch(proto_id){
 359         case PROTO_ID_UUID:
 360             dcerpc_tvb_get_uuid (tvb, offset+1, &u8little_endian, &uuid);
 361
 362             uuid_name = guids_get_uuid_name(&uuid);
 363
 364             if(uuid_name != NULL) {
 365                 proto_tree_add_guid_format (tr, hf_epm_uuid, tvb, offset+1, 16, (e_guid_t *) &uuid,
 366                               "UUID: %s (%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x)",
 367                               uuid_name,
 368                               uuid.Data1, uuid.Data2, uuid.Data3,
 369                               uuid.Data4[0], uuid.Data4[1],
 370                               uuid.Data4[2], uuid.Data4[3],
 371                               uuid.Data4[4], uuid.Data4[5],
 372                               uuid.Data4[6], uuid.Data4[7]);
 373             } else {
 374                 proto_tree_add_guid_format (tr, hf_epm_uuid, tvb, offset+1, 16, (e_guid_t *) &uuid,
 375                               "UUID: %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
 376                               uuid.Data1, uuid.Data2, uuid.Data3,
 377                               uuid.Data4[0], uuid.Data4[1],
 378                               uuid.Data4[2], uuid.Data4[3],
 379                               uuid.Data4[4], uuid.Data4[5],
 380                               uuid.Data4[6], uuid.Data4[7]);
 381             }
 382             proto_tree_add_text(tr, tvb, offset+17, 2, "Version %d.%d", tvb_get_guint8(tvb, offset+17), tvb_get_guint8(tvb, offset+18));
 383
 384             {
 385                 guint16 version = tvb_get_ntohs(tvb, offset+17);
 386                 const char *service = dcerpc_get_proto_name(&uuid, version);
 387                 if (service || uuid_name) {
 388                     const char *s = service ? service : uuid_name;
 389                     proto_item_append_text(tr, "UUID: %s", s);
 390                     col_append_fstr(pinfo->cinfo, COL_INFO, ", %s", s);
 391                 } else {
 392                     proto_item_append_text(tr, "UUID: %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x Version %d.%d", uuid.Data1, uuid.Data2, uuid.Data3,
 393                                            uuid.Data4[0], uuid.Data4[1],
 394                                            uuid.Data4[2], uuid.Data4[3],
 395                                            uuid.Data4[4], uuid.Data4[5],
 396                                            uuid.Data4[6], uuid.Data4[7],
 397                                            tvb_get_guint8(tvb, offset+17),
 398                                            tvb_get_guint8(tvb, offset+18));
 399                 }
 400             }
 401             break;
 402         }
 403         offset += len;
 404
 405         len = tvb_get_letohs(tvb, offset);
 406         pi = proto_tree_add_uint(tr, hf_epm_tower_rhs_len, tvb, offset, 2, len);
 407         offset += 2;
 408
 409         switch(proto_id){
 410
 411         case PROTO_ID_UUID:
 412             /* XXX - is this big or little endian? */
 413             proto_tree_add_item(tr, hf_epm_ver_min, tvb, offset, 2, ENC_BIG_ENDIAN);
 414             break;
 415         case PROTO_ID_TCP: /* this one is always big endian */
 416             proto_tree_add_item(tr, hf_epm_proto_tcp_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 417             proto_item_append_text(tr, "TCP Port:%d", tvb_get_ntohs(tvb, offset));
 418             break;
 419
 420         case PROTO_ID_UDP: /* this one is always big endian */
 421             proto_tree_add_item(tr, hf_epm_proto_udp_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 422             proto_item_append_text(tr, "UDP Port:%d", tvb_get_ntohs(tvb, offset));
 423             break;
 424
 425         case PROTO_ID_IP: /* this one is always big endian */
 426             proto_tree_add_item(tr, hf_epm_proto_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
 427             proto_item_append_text(tr, "IP:%s", tvb_ip_to_str(tvb, offset));
 428             break;
 429
 430         case PROTO_ID_RPC_CO:
 431             proto_item_append_text(tr, "RPC connection-oriented protocol");
 432             break;
 433
 434         case PROTO_ID_RPC_CL:
 435             proto_item_append_text(tr, "RPC connectionless protocol");
 436             /* XXX - is this big or little endian? */
 437             proto_tree_add_item(tr, hf_epm_ver_min, tvb, offset, 2, ENC_BIG_ENDIAN);
 438             break;
 439
 440         case PROTO_ID_NAMED_PIPES: /* \\PIPE\xxx   named pipe */
 441             proto_tree_add_item(tr, hf_epm_proto_named_pipes, tvb, offset, len, ENC_ASCII|ENC_NA);
 442             proto_item_append_text(tr, "NamedPipe:%s", tvb_get_ephemeral_string(tvb, offset, len));
 443             break;
 444
 445         case PROTO_ID_NAMED_PIPES_2: /* PIPENAME  named pipe */
 446             proto_tree_add_item(tr, hf_epm_proto_named_pipes, tvb, offset, len, ENC_ASCII|ENC_NA);
 447             proto_item_append_text(tr, "PIPE:%s", tvb_get_ephemeral_string(tvb, offset, len));
 448             break;
 449
 450         case PROTO_ID_NETBIOS: /* \\NETBIOS   netbios name */
 451             proto_tree_add_item(tr, hf_epm_proto_netbios_name, tvb, offset, len, ENC_ASCII|ENC_NA);
 452             proto_item_append_text(tr, "NetBIOS:%s", tvb_get_ephemeral_string(tvb, offset, len));
 453             break;
 454         case PROTO_ID_HTTP: /* RPC over HTTP */
 455             proto_tree_add_item(tr, hf_epm_proto_http_port, tvb, offset, 2, ENC_BIG_ENDIAN);
 456             proto_item_append_text(tr, "RPC over HTTP Port:%d", tvb_get_ntohs(tvb, offset));
 457             break;
 458
 459         default:
 460             if(len){
 461                 expert_add_info_format(pinfo, pi, PI_UNDECODED, PI_WARN, "RightHandSide not decoded yet for proto_id 0x%x",
 462                     proto_id);
 463                 tvb_ensure_bytes_exist(tvb, offset, len);
 464                 proto_tree_add_text(tr, tvb, offset, len, "RightHandSide not decoded yet for proto_id 0x%x", proto_id);
 465             }
 466         }
 467         offset += len;
 468
 469         proto_item_set_len(it, offset-old_offset);
 470     }
 471     return offset;
 472 }
 473
 474 /* typedef struct {
 475       unsigned int tower_len,
 476       [size_is(tower_len)] char tower[];
 477    } twr_t, *twr_p_t;
 478 */
 479 static int
 480 epm_dissect_tower (tvbuff_t *tvb, int offset,
 481                              packet_info *pinfo, proto_tree *tree,
 482                              guint8 *drep)
 483 {
 484     guint32 len;
 485     dcerpc_info *di;
 486
 487     di=pinfo->private_data;
 488     if(di->conformant_run){
 489         return offset;
 490     }
 491
 492     /* first one is the header of the conformant array, second one is the
 493        length field */
 494     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 495                                  hf_epm_tower_length, &len);
 496     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 497                                  hf_epm_tower_length, NULL);
 498     offset = epm_dissect_tower_data(tvb, offset, pinfo, tree, drep);
 499
 500     return offset;
 501 }
 502 static int
 503 epm_dissect_tower_pointer (tvbuff_t *tvb, int offset,
 504                              packet_info *pinfo, proto_tree *tree,
 505                              guint8 *drep)
 506 {
 507     offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, drep,
 508                              epm_dissect_tower, NDR_POINTER_PTR,
 509                              "Tower pointer:", -1);
 510     return offset;
 511 }
 512 static int
 513 epm_dissect_tower_array (tvbuff_t *tvb, int offset,
 514                              packet_info *pinfo, proto_tree *tree,
 515                              guint8 *drep)
 516 {
 517     offset = dissect_ndr_ucvarray(tvb, offset, pinfo, tree, drep,
 518                              epm_dissect_tower_pointer);
 519
 520     return offset;
 521 }
 522
 523 static int
 524 epm_dissect_ept_map_rqst (tvbuff_t *tvb, int offset,
 525                              packet_info *pinfo, proto_tree *tree,
 526                              guint8 *drep)
 527 {
 528     /* [in, ptr] uuid_p_t object */
 529     offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, drep,
 530                              epm_dissect_uuid, NDR_POINTER_PTR,
 531                              "UUID pointer:", -1);
 532
 533     /* [in, ptr] twr_p_t map_tower */
 534     offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, drep,
 535                              epm_dissect_tower, NDR_POINTER_PTR,
 536                              "Tower pointer:", -1);
 537
 538     /* [in, out] ept_lookup_handle_t *entry_handle */
 539     offset = dissect_ndr_ctx_hnd (tvb, offset, pinfo, tree, drep,
 540                                   hf_epm_hnd, NULL);
 541
 542     /* [in] unsigned32 max_towers */
 543     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 544                                  hf_epm_max_towers, NULL);
 545
 546     return offset;
 547 }
 548
 549 static int
 550 epm_dissect_ept_map_resp (tvbuff_t *tvb, int offset,
 551                              packet_info *pinfo, proto_tree *tree,
 552                              guint8 *drep)
 553 {
 554     /* [in, out] ept_lookup_handle_t *entry_handle */
 555     offset = dissect_ndr_ctx_hnd (tvb, offset, pinfo, tree, drep,
 556                                   hf_epm_hnd, NULL);
 557
 558     /* [out, ptr] unsigned32 *num_towers */
 559     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 560                                  hf_epm_num_towers, NULL);
 561
 562     /* [out, length_is(*num_towers), size_is(max_towers), ptr] twr_p_t towers[] */
 563     offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, drep,
 564                              epm_dissect_tower_array, NDR_POINTER_REF,
 565                              "Tower array:", -1);
 566
 567     /* [out] error_status_t *status */
 568     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 569                                  hf_epm_rc, NULL);
 570
 571     return offset;
 572 }
 573
 574 static int
 575 epm_dissect_ept_entry_t_ucarray(tvbuff_t *tvb, int offset,
 576                              packet_info *pinfo, proto_tree *tree,
 577                              guint8 *drep)
 578 {
 579     offset = dissect_ndr_ucarray(tvb, offset, pinfo, tree, drep,
 580                              epm_dissect_ept_entry_t);
 581
 582     return offset;
 583 }
 584
 585 static int
 586 epm_dissect_ept_insert_rqst (tvbuff_t *tvb, int offset,
 587                              packet_info *pinfo, proto_tree *tree,
 588                              guint8 *drep)
 589 {
 590     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 591                                  hf_epm_num_ents, NULL);
 592
 593     offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, drep,
 594                              epm_dissect_ept_entry_t_ucarray, NDR_POINTER_REF,
 595                              "Entries:", -1);
 596
 597     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 598                                  hf_epm_replace, NULL);
 599
 600     return offset;
 601 }
 602
 603
 604
 605 static int
 606 epm_dissect_ept_insert_resp (tvbuff_t *tvb, int offset,
 607                              packet_info *pinfo, proto_tree *tree,
 608                              guint8 *drep)
 609 {
 610     /* [out] error_status_t *status */
 611     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 612                                  hf_epm_rc, NULL);
 613
 614     return offset;
 615 }
 616
 617
 618 static int
 619 epm_dissect_ept_delete_rqst (tvbuff_t *tvb, int offset,
 620                              packet_info *pinfo, proto_tree *tree,
 621                              guint8 *drep)
 622 {
 623     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 624                                  hf_epm_num_ents, NULL);
 625
 626     offset = dissect_ndr_pointer(tvb, offset, pinfo, tree, drep,
 627                              epm_dissect_ept_entry_t_ucarray, NDR_POINTER_REF,
 628                              "Entries:", -1);
 629
 630     return offset;
 631 }
 632
 633
 634
 635 static int
 636 epm_dissect_ept_delete_resp (tvbuff_t *tvb, int offset,
 637                              packet_info *pinfo, proto_tree *tree,
 638                              guint8 *drep)
 639 {
 640     /* [out] error_status_t *status */
 641     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 642                                  hf_epm_rc, NULL);
 643
 644     return offset;
 645 }
 646
 647
 648
 649 static int
 650 epm_dissect_ept_lookup_handle_free_rqst (tvbuff_t *tvb, int offset,
 651                              packet_info *pinfo, proto_tree *tree,
 652                              guint8 *drep)
 653 {
 654     /* [in, out] ept_lookup_handle_t *entry_handle */
 655     offset = dissect_ndr_ctx_hnd (tvb, offset, pinfo, tree, drep,
 656                                   hf_epm_hnd, NULL);
 657
 658     return offset;
 659 }
 660
 661 static int
 662 epm_dissect_ept_lookup_handle_free_resp (tvbuff_t *tvb, int offset,
 663                              packet_info *pinfo, proto_tree *tree,
 664                              guint8 *drep)
 665 {
 666     /* [in, out] ept_lookup_handle_t *entry_handle */
 667     offset = dissect_ndr_ctx_hnd (tvb, offset, pinfo, tree, drep,
 668                                   hf_epm_hnd, NULL);
 669
 670     offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, drep,
 671                                  hf_epm_rc, NULL);
 672
 673     return offset;
 674 }
 675
 676
 677 static dcerpc_sub_dissector epm_dissectors[] = {
 678     { 0, "Insert",
 679         epm_dissect_ept_insert_rqst,
 680         epm_dissect_ept_insert_resp },
 681     { 1, "Delete",
 682         epm_dissect_ept_delete_rqst,
 683         epm_dissect_ept_delete_resp },
 684     { 2, "Lookup",
 685         epm_dissect_ept_lookup_rqst,
 686         epm_dissect_ept_lookup_resp },
 687     { 3, "Map",
 688         epm_dissect_ept_map_rqst,
 689         epm_dissect_ept_map_resp },
 690     { 4, "LookupHandleFree",
 691         epm_dissect_ept_lookup_handle_free_rqst,
 692         epm_dissect_ept_lookup_handle_free_resp },
 693     { 5, "InqObject", NULL, NULL },
 694     { 6, "MgmtDelete", NULL, NULL },
 695     { 0, NULL, NULL, NULL }
 696 };
 697
 698 void
 699 proto_register_epm (void)
 700 {
 701     static hf_register_info hf[] = {
 702         { &hf_epm_opnum,
 703           { "Operation", "epm.opnum", FT_UINT16, BASE_DEC,
 704             NULL, 0x0, NULL, HFILL }},
 705         { &hf_epm_inquiry_type,
 706           { "Inquiry type", "epm.inq_type", FT_UINT32, BASE_DEC, VALS(ep_service), 0x0, NULL, HFILL }},
 707         { &hf_epm_object,
 708           { "Object", "epm.object", FT_GUID, BASE_NONE, NULL, 0x0, NULL, HFILL }},
 709         { &hf_epm_if_id,
 710           { "Interface", "epm.if_id", FT_GUID, BASE_NONE, NULL, 0x0, NULL, HFILL }},
 711         { &hf_epm_ver_maj,
 712           { "Version Major", "epm.ver_maj", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
 713         { &hf_epm_ver_min,
 714           { "Version Minor", "epm.ver_min", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
 715         { &hf_epm_ver_opt,
 716           { "Version Option", "epm.ver_opt", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
 717         { &hf_epm_hnd,
 718           { "Handle", "epm.hnd", FT_BYTES, BASE_NONE, NULL, 0x0, "Context handle", HFILL }},
 719         { &hf_epm_max_ents,
 720           { "Max entries", "epm.max_ents", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
 721         { &hf_epm_num_ents,
 722           { "Num entries", "epm.num_ents", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
 723         { &hf_epm_uuid,
 724           { "UUID", "epm.uuid", FT_GUID, BASE_NONE, NULL, 0x0, NULL, HFILL }},
 725         { &hf_epm_annotation,
 726           { "Annotation", "epm.annotation", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
 727         { &hf_epm_proto_named_pipes,
 728           { "Named Pipe", "epm.proto.named_pipe", FT_STRING, BASE_NONE, NULL, 0x0, "Name of the named pipe for this service", HFILL }},
 729         { &hf_epm_proto_netbios_name,
 730           { "NetBIOS Name", "epm.proto.netbios_name", FT_STRING, BASE_NONE, NULL, 0x0, "NetBIOS name where this service can be found", HFILL }},
 731         { &hf_epm_tower_length,
 732           { "Length", "epm.tower.len", FT_UINT32, BASE_DEC, NULL, 0x0, "Length of tower data", HFILL }},
 733         { &hf_epm_tower_data,
 734           { "Tower", "epm.tower", FT_BYTES, BASE_NONE, NULL, 0x0, "Tower data", HFILL }},
 735         { &hf_epm_max_towers,
 736           { "Max Towers", "epm.max_towers", FT_UINT32, BASE_DEC, NULL, 0x0, "Maximum number of towers to return", HFILL }},
 737         { &hf_epm_num_towers,
 738           { "Num Towers", "epm.num_towers", FT_UINT32, BASE_DEC, NULL, 0x0, "Number number of towers to return", HFILL }},
 739         { &hf_epm_ann_offset,
 740           { "Annotation offset", "epm.ann_offset", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
 741         { &hf_epm_ann_len,
 742           { "Annotation length", "epm.ann_len", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
 743         { &hf_epm_rc,
 744           { "Return code", "epm.rc", FT_UINT32, BASE_HEX, NULL, 0x0, "EPM return value", HFILL }},
 745         { &hf_epm_replace,
 746           { "Replace", "epm.replace", FT_UINT8, BASE_DEC, NULL, 0x0, "Replace existing objects?", HFILL }},
 747         { &hf_epm_tower_num_floors,
 748           { "Number of floors", "epm.tower.num_floors", FT_UINT16, BASE_DEC, NULL, 0x0, "Number of floors in tower", HFILL }},
 749         { &hf_epm_proto_udp_port,
 750           { "UDP Port", "epm.proto.udp_port", FT_UINT16, BASE_DEC, NULL, 0x0, "UDP Port where this service can be found", HFILL }},
 751         { &hf_epm_proto_tcp_port,
 752           { "TCP Port", "epm.proto.tcp_port", FT_UINT16, BASE_DEC, NULL, 0x0, "TCP Port where this service can be found", HFILL }},
 753         { &hf_epm_proto_http_port,
 754           { "TCP Port", "epm.proto.http_port", FT_UINT16, BASE_DEC, NULL, 0x0, "TCP Port where this service can be found", HFILL }},
 755         { &hf_epm_tower_rhs_len,
 756           { "RHS Length", "epm.tower.rhs.len", FT_UINT16, BASE_DEC, NULL, 0x0, "Length of RHS data", HFILL }},
 757         { &hf_epm_tower_lhs_len,
 758           { "LHS Length", "epm.tower.lhs.len", FT_UINT16, BASE_DEC, NULL, 0x0, "Length of LHS data", HFILL }},
 759         { &hf_epm_proto_ip,
 760           { "IP", "epm.proto.ip", FT_IPv4, BASE_NONE, NULL, 0x0, "IP address where service is located", HFILL }},
 761         { &hf_epm_tower_proto_id,
 762           { "Protocol", "epm.tower.proto_id", FT_UINT8, BASE_HEX, VALS(proto_id_vals), 0x0, "Protocol identifier", HFILL }}
 763     };
 764     static gint *ett[] = {
 765         &ett_epm,
 766         &ett_epm_tower_floor,
 767         &ett_epm_entry
 768     };
 769
 770     /* interface version 3 */
 771     proto_epm3 = proto_register_protocol ("DCE/RPC Endpoint Mapper", "EPM", "epm");
 772     proto_register_field_array (proto_epm3, hf, array_length (hf));
 773     proto_register_subtree_array (ett, array_length (ett));
 774
 775     /* interface version 4 */
 776     proto_epm4 = proto_register_protocol ("DCE/RPC Endpoint Mapper v4", "EPMv4", "epm4");
 777 }
 778
 779 void
 780 proto_reg_handoff_epm (void)
 781 {
 782     /* Register the protocol as dcerpc */
 783     dcerpc_init_uuid (proto_epm3, ett_epm, &uuid_epm, ver_epm3, epm_dissectors, hf_epm_opnum);
 784     dcerpc_init_uuid (proto_epm4, ett_epm, &uuid_epm, ver_epm4, epm_dissectors, hf_epm_opnum);
 785 }
 786
 787 /*
 788  * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
 789  *
 790  * Local variables:
 791  * c-basic-offset: 4
 792  * tab-width: 8
 793  * indent-tabs-mode: nil
 794  * End:
 795  *
 796  * vi: set shiftwidth=4 tabstop=8 expandtab:
 797  * :indentSize=4:tabSize=8:noTabs=true:
 798  */