source4/torture/nbt/wins.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    NBT WINS server testing
   5
   6    Copyright (C) Andrew Tridgell 2005
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "lib/util/dlinklist.h"
  24 #include "lib/events/events.h"
  25 #include "lib/socket/socket.h"
  26 #include "libcli/resolve/resolve.h"
  27 #include "system/network.h"
  28 #include "lib/socket/netif.h"
  29 #include "librpc/gen_ndr/ndr_nbt.h"
  30 #include "torture/torture.h"
  31 #include "torture/nbt/proto.h"
  32 #include "param/param.h"
  33
  34 #define CHECK_VALUE(tctx, v, correct) \
  35         torture_assert_int_equal(tctx, v, correct, "Incorrect value")
  36
  37 #define CHECK_STRING(tctx, v, correct) \
  38         torture_assert_casestr_equal(tctx, v, correct, "Incorrect value")
  39
  40 #define CHECK_NAME(tctx, _name, correct) do { \
  41         CHECK_STRING(tctx, (_name).name, (correct).name); \
  42         CHECK_VALUE(tctx, (uint8_t)(_name).type, (uint8_t)(correct).type); \
  43         CHECK_STRING(tctx, (_name).scope, (correct).scope); \
  44 } while (0)
  45
  46
  47 /*
  48   test operations against a WINS server
  49 */
  50 static bool nbt_test_wins_name(struct torture_context *tctx, const char *address,
  51                                struct nbt_name *name, uint16_t nb_flags,
  52                                bool try_low_port,
  53                                uint8_t register_rcode)
  54 {
  55         struct nbt_name_register_wins io;
  56         struct nbt_name_register name_register;
  57         struct nbt_name_query query;
  58         struct nbt_name_refresh_wins refresh;
  59         struct nbt_name_release release;
  60         struct nbt_name_request *req;
  61         NTSTATUS status;
  62         struct nbt_name_socket *nbtsock = torture_init_nbt_socket(tctx);
  63         const char *myaddress;
  64         struct socket_address *socket_address;
  65         struct interface *ifaces;
  66         bool low_port = try_low_port;
  67         char **l;
  68
  69         load_interface_list(tctx, tctx->lp_ctx, &ifaces);
  70
  71         myaddress = talloc_strdup(tctx, iface_list_best_ip(ifaces, address));
  72
  73         socket_address = socket_address_from_strings(tctx,
  74                                                      nbtsock->sock->backend_name,
  75                                                      myaddress, lpcfg_nbt_port(tctx->lp_ctx));
  76         torture_assert(tctx, socket_address != NULL,
  77                                    "Error getting address");
  78
  79         /* we do the listen here to ensure the WINS server receives the packets from
  80            the right IP */
  81         status = socket_listen(nbtsock->sock, socket_address, 0, 0);
  82         talloc_free(socket_address);
  83         if (!NT_STATUS_IS_OK(status)) {
  84                 low_port = false;
  85                 socket_address = socket_address_from_strings(tctx,
  86                                                              nbtsock->sock->backend_name,
  87                                                              myaddress, 0);
  88                 torture_assert(tctx, socket_address != NULL,
  89                                "Error getting address");
  90
  91                 status = socket_listen(nbtsock->sock, socket_address, 0, 0);
  92                 talloc_free(socket_address);
  93                 torture_assert_ntstatus_ok(tctx, status,
  94                                            "socket_listen for WINS failed");
  95         }
  96
  97         torture_comment(tctx, "Testing name registration to WINS with name %s at %s nb_flags=0x%x\n",
  98                nbt_name_string(tctx, name), myaddress, nb_flags);
  99
 100         torture_comment(tctx, "release the name\n");
 101         release.in.name = *name;
 102         release.in.dest_port = lpcfg_nbt_port(tctx->lp_ctx);
 103         release.in.dest_addr = address;
 104         release.in.address = myaddress;
 105         release.in.nb_flags = nb_flags;
 106         release.in.broadcast = false;
 107         release.in.timeout = 3;
 108         release.in.retries = 0;
 109
 110         status = nbt_name_release(nbtsock, tctx, &release);
 111         torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 112         CHECK_VALUE(tctx, release.out.rcode, 0);
 113
 114         if (nb_flags & NBT_NM_GROUP) {
 115                 /* ignore this for group names */
 116         } else if (!low_port) {
 117                 torture_comment(tctx, "no low port - skip: register the name with a wrong address\n");
 118         } else {
 119                 torture_comment(tctx, "register the name with a wrong address (makes the next request slow!)\n");
 120                 io.in.name = *name;
 121                 io.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 122                 io.in.wins_servers = const_str_list(
 123                         str_list_make_single(tctx, address));
 124                 io.in.addresses = const_str_list(
 125                         str_list_make_single(tctx, "127.64.64.1"));
 126                 io.in.nb_flags = nb_flags;
 127                 io.in.ttl = 300000;
 128
 129                 status = nbt_name_register_wins(nbtsock, tctx, &io);
 130                 if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 131                         torture_assert_ntstatus_ok(tctx, status,
 132                                 talloc_asprintf(tctx, "No response from %s for name register\n",
 133                                                 address));
 134                 }
 135                 torture_assert_ntstatus_ok(tctx, status,
 136                         talloc_asprintf(tctx, "Bad response from %s for name register\n",
 137                                         address));
 138
 139                 CHECK_STRING(tctx, io.out.wins_server, address);
 140                 CHECK_VALUE(tctx, io.out.rcode, 0);
 141
 142                 torture_comment(tctx, "register the name correct address\n");
 143                 name_register.in.name           = *name;
 144                 name_register.in.dest_port      = lpcfg_nbt_port(tctx->lp_ctx);
 145                 name_register.in.dest_addr      = address;
 146                 name_register.in.address        = myaddress;
 147                 name_register.in.nb_flags       = nb_flags;
 148                 name_register.in.register_demand= false;
 149                 name_register.in.broadcast      = false;
 150                 name_register.in.multi_homed    = true;
 151                 name_register.in.ttl            = 300000;
 152                 name_register.in.timeout        = 3;
 153                 name_register.in.retries        = 2;
 154
 155                 /*
 156                  * test if the server ignores resent requests
 157                  */
 158                 req = nbt_name_register_send(nbtsock, &name_register);
 159                 while (true) {
 160                         tevent_loop_once(nbtsock->event_ctx);
 161                         if (req->state != NBT_REQUEST_WAIT) {
 162                                 break;
 163                         }
 164                         if (req->received_wack) {
 165                                 /*
 166                                  * if we received the wack response
 167                                  * we resend the request and the
 168                                  * server should ignore that
 169                                  * and not handle it as new request
 170                                  */
 171                                 req->state = NBT_REQUEST_SEND;
 172                                 DLIST_ADD_END(nbtsock->send_queue, req);
 173                                 TEVENT_FD_WRITEABLE(nbtsock->fde);
 174                                 break;
 175                         }
 176                 }
 177
 178                 status = nbt_name_register_recv(req, tctx, &name_register);
 179                 if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 180                         torture_assert_ntstatus_ok(tctx, status,
 181                                 talloc_asprintf(tctx, "No response from %s for name register\n",
 182                                                 address));
 183                 }
 184                 torture_assert_ntstatus_ok(tctx, status,
 185                         talloc_asprintf(tctx, "Bad response from %s for name register\n",
 186                                         address));
 187
 188                 CHECK_VALUE(tctx, name_register.out.rcode, 0);
 189                 CHECK_STRING(tctx, name_register.out.reply_addr, myaddress);
 190         }
 191
 192         torture_comment(tctx, "register the name correct address\n");
 193         io.in.name = *name;
 194         io.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 195         l = str_list_make_single(tctx, address);
 196         io.in.wins_servers = discard_const_p(const char *, l);
 197         l = str_list_make_single(tctx, myaddress);
 198         io.in.addresses = discard_const_p(const char *, l);
 199         io.in.nb_flags = nb_flags;
 200         io.in.ttl = 300000;
 201
 202         status = nbt_name_register_wins(nbtsock, tctx, &io);
 203         torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name register", address));
 204
 205         CHECK_STRING(tctx, io.out.wins_server, address);
 206         CHECK_VALUE(tctx, io.out.rcode, register_rcode);
 207
 208         if (register_rcode != NBT_RCODE_OK) {
 209                 return true;
 210         }
 211
 212         if (name->type != NBT_NAME_MASTER &&
 213             name->type != NBT_NAME_LOGON &&
 214             name->type != NBT_NAME_BROWSER &&
 215             (nb_flags & NBT_NM_GROUP)) {
 216                 torture_comment(tctx, "Try to register as non-group\n");
 217                 io.in.nb_flags &= ~NBT_NM_GROUP;
 218                 status = nbt_name_register_wins(nbtsock, tctx, &io);
 219                 torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name register\n",
 220                         address));
 221                 CHECK_VALUE(tctx, io.out.rcode, NBT_RCODE_ACT);
 222         }
 223
 224         torture_comment(tctx, "query the name to make sure its there\n");
 225         query.in.name = *name;
 226         query.in.dest_addr = address;
 227         query.in.dest_port = lpcfg_nbt_port(tctx->lp_ctx);
 228         query.in.broadcast = false;
 229         query.in.wins_lookup = true;
 230         query.in.timeout = 3;
 231         query.in.retries = 0;
 232
 233         status = nbt_name_query(nbtsock, tctx, &query);
 234         if (name->type == NBT_NAME_MASTER) {
 235                 torture_assert_ntstatus_equal(
 236                           tctx, status, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 237                           talloc_asprintf(tctx, "Bad response from %s for name query", address));
 238                 return true;
 239         }
 240         torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 241
 242         CHECK_NAME(tctx, query.out.name, *name);
 243         CHECK_VALUE(tctx, query.out.num_addrs, 1);
 244         if (name->type != NBT_NAME_LOGON &&
 245             (nb_flags & NBT_NM_GROUP)) {
 246                 CHECK_STRING(tctx, query.out.reply_addrs[0], "255.255.255.255");
 247         } else {
 248                 CHECK_STRING(tctx, query.out.reply_addrs[0], myaddress);
 249         }
 250
 251
 252         query.in.name.name = strupper_talloc(tctx, name->name);
 253         if (query.in.name.name &&
 254             strcmp(query.in.name.name, name->name) != 0) {
 255                 torture_comment(tctx, "check case sensitivity\n");
 256                 status = nbt_name_query(nbtsock, tctx, &query);
 257                 torture_assert_ntstatus_equal(tctx, status, NT_STATUS_OBJECT_NAME_NOT_FOUND, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 258         }
 259
 260         query.in.name = *name;
 261         if (name->scope) {
 262                 query.in.name.scope = strupper_talloc(tctx, name->scope);
 263         }
 264         if (query.in.name.scope &&
 265             strcmp(query.in.name.scope, name->scope) != 0) {
 266                 torture_comment(tctx, "check case sensitivity on scope\n");
 267                 status = nbt_name_query(nbtsock, tctx, &query);
 268                 torture_assert_ntstatus_equal(tctx, status, NT_STATUS_OBJECT_NAME_NOT_FOUND, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 269         }
 270
 271         torture_comment(tctx, "refresh the name\n");
 272         refresh.in.name = *name;
 273         refresh.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 274         l = str_list_make_single(tctx, address);
 275         refresh.in.wins_servers = discard_const_p(const char *, l);
 276         l = str_list_make_single(tctx, myaddress);
 277         refresh.in.addresses = discard_const_p(const char *, l);
 278         refresh.in.nb_flags = nb_flags;
 279         refresh.in.ttl = 12345;
 280
 281         status = nbt_name_refresh_wins(nbtsock, tctx, &refresh);
 282         if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 283                 torture_assert_ntstatus_ok(tctx, status,
 284                         talloc_asprintf(tctx, "No response from %s for name refresh",
 285                                         address));
 286         }
 287         torture_assert_ntstatus_ok(tctx, status,
 288                 talloc_asprintf(tctx, "Bad response from %s for name refresh",
 289                                 address));
 290
 291         CHECK_STRING(tctx, refresh.out.wins_server, address);
 292         CHECK_VALUE(tctx, refresh.out.rcode, 0);
 293
 294         printf("release the name\n");
 295         release.in.name = *name;
 296         release.in.dest_port = lpcfg_nbt_port(tctx->lp_ctx);
 297         release.in.dest_addr = address;
 298         release.in.address = myaddress;
 299         release.in.nb_flags = nb_flags;
 300         release.in.broadcast = false;
 301         release.in.timeout = 3;
 302         release.in.retries = 0;
 303
 304         status = nbt_name_release(nbtsock, tctx, &release);
 305         if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 306                 torture_assert_ntstatus_ok(tctx, status,
 307                         talloc_asprintf(tctx, "No response from %s for name release",
 308                                         address));
 309         }
 310         torture_assert_ntstatus_ok(tctx, status,
 311                 talloc_asprintf(tctx, "Bad response from %s for name release",
 312                                 address));
 313
 314         CHECK_NAME(tctx, release.out.name, *name);
 315         CHECK_VALUE(tctx, release.out.rcode, 0);
 316
 317         if (nb_flags & NBT_NM_GROUP) {
 318                 /* ignore this for group names */
 319         } else if (!low_port) {
 320                 torture_comment(tctx, "no low port - skip: register the name with a wrong address\n");
 321         } else {
 322                 torture_comment(tctx, "register the name with a wrong address (makes the next request slow!)\n");
 323                 io.in.name = *name;
 324                 io.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 325                 io.in.wins_servers = const_str_list(
 326                         str_list_make_single(tctx, address));
 327                 io.in.addresses = const_str_list(
 328                         str_list_make_single(tctx, "127.64.64.1"));
 329                 io.in.nb_flags = nb_flags;
 330                 io.in.ttl = 300000;
 331
 332                 status = nbt_name_register_wins(nbtsock, tctx, &io);
 333                 if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 334                         torture_assert_ntstatus_ok(tctx, status,
 335                                 talloc_asprintf(tctx, "No response from %s for name register\n",
 336                                                 address));
 337                 }
 338                 torture_assert_ntstatus_ok(tctx, status,
 339                         talloc_asprintf(tctx, "Bad response from %s for name register\n",
 340                                         address));
 341
 342                 CHECK_STRING(tctx, io.out.wins_server, address);
 343                 CHECK_VALUE(tctx, io.out.rcode, 0);
 344         }
 345
 346         torture_comment(tctx, "refresh the name with the correct address\n");
 347         refresh.in.name = *name;
 348         refresh.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 349         refresh.in.wins_servers = const_str_list(
 350                         str_list_make_single(tctx, address));
 351         refresh.in.addresses = const_str_list(
 352                         str_list_make_single(tctx, myaddress));
 353         refresh.in.nb_flags = nb_flags;
 354         refresh.in.ttl = 12345;
 355
 356         status = nbt_name_refresh_wins(nbtsock, tctx, &refresh);
 357         if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 358                 torture_assert_ntstatus_ok(tctx, status,
 359                         talloc_asprintf(tctx, "No response from %s for name refresh",
 360                                         address));
 361         }
 362         torture_assert_ntstatus_ok(tctx, status,
 363                 talloc_asprintf(tctx, "Bad response from %s for name refresh",
 364                                 address));
 365
 366         CHECK_STRING(tctx, refresh.out.wins_server, address);
 367         CHECK_VALUE(tctx, refresh.out.rcode, 0);
 368
 369         torture_comment(tctx, "release the name\n");
 370         release.in.name = *name;
 371         release.in.dest_port = lpcfg_nbt_port(tctx->lp_ctx);
 372         release.in.dest_addr = address;
 373         release.in.address = myaddress;
 374         release.in.nb_flags = nb_flags;
 375         release.in.broadcast = false;
 376         release.in.timeout = 3;
 377         release.in.retries = 0;
 378
 379         status = nbt_name_release(nbtsock, tctx, &release);
 380         torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 381
 382         CHECK_NAME(tctx, release.out.name, *name);
 383         CHECK_VALUE(tctx, release.out.rcode, 0);
 384
 385         torture_comment(tctx, "release again\n");
 386         status = nbt_name_release(nbtsock, tctx, &release);
 387         torture_assert_ntstatus_ok(tctx, status,
 388                                 talloc_asprintf(tctx, "Bad response from %s for name query",
 389                        address));
 390
 391         CHECK_NAME(tctx, release.out.name, *name);
 392         CHECK_VALUE(tctx, release.out.rcode, 0);
 393
 394
 395         torture_comment(tctx, "query the name to make sure its gone\n");
 396         query.in.name = *name;
 397         status = nbt_name_query(nbtsock, tctx, &query);
 398         if (name->type != NBT_NAME_LOGON &&
 399             (nb_flags & NBT_NM_GROUP)) {
 400                 torture_assert_ntstatus_ok(tctx, status,
 401                                 "ERROR: Name query failed after group release");
 402         } else {
 403                 torture_assert_ntstatus_equal(tctx, status,
 404                                                                           NT_STATUS_OBJECT_NAME_NOT_FOUND,
 405                                 "Incorrect response to name query");
 406         }
 407
 408         return true;
 409 }
 410
 411
 412 static char *test_nbt_wins_scope_string(TALLOC_CTX *mem_ctx, uint8_t count)
 413 {
 414         char *res;
 415         uint8_t i;
 416
 417         res = talloc_array(mem_ctx, char, count+1);
 418         if (res == NULL) {
 419                 return NULL;
 420         }
 421
 422         for (i=0; i < count; i++) {
 423                 switch (i) {
 424                 case 63:
 425                 case 63 + 1 + 63:
 426                 case 63 + 1 + 63 + 1 + 63:
 427                         res[i] = '.';
 428                         break;
 429                 default:
 430                         res[i] = '0' + (i%10);
 431                         break;
 432                 }
 433         }
 434
 435         res[count] = '\0';
 436
 437         talloc_set_name_const(res, res);
 438
 439         return res;
 440 }
 441
 442 /*
 443   test operations against a WINS server
 444 */
 445 static bool nbt_test_wins(struct torture_context *tctx)
 446 {
 447         struct nbt_name name;
 448         uint32_t r = (uint32_t)(random() % (100000));
 449         const char *address;
 450         bool ret = true;
 451
 452         if (!torture_nbt_get_name(tctx, &name, &address))
 453                 return false;
 454
 455         name.name = talloc_asprintf(tctx, "_TORTURE-%5u", r);
 456
 457         name.type = NBT_NAME_CLIENT;
 458         name.scope = NULL;
 459         ret &= nbt_test_wins_name(tctx, address, &name,
 460                                   NBT_NODE_H, true, NBT_RCODE_OK);
 461
 462         name.type = NBT_NAME_MASTER;
 463         ret &= nbt_test_wins_name(tctx, address, &name,
 464                                   NBT_NODE_H, false, NBT_RCODE_OK);
 465
 466         ret &= nbt_test_wins_name(tctx, address, &name,
 467                                   NBT_NODE_H | NBT_NM_GROUP, false, NBT_RCODE_OK);
 468
 469         name.type = NBT_NAME_SERVER;
 470         ret &= nbt_test_wins_name(tctx, address, &name,
 471                                   NBT_NODE_H, true, NBT_RCODE_OK);
 472
 473         name.type = NBT_NAME_LOGON;
 474         ret &= nbt_test_wins_name(tctx, address, &name,
 475                                   NBT_NODE_H | NBT_NM_GROUP, false, NBT_RCODE_OK);
 476
 477         name.type = NBT_NAME_BROWSER;
 478         ret &= nbt_test_wins_name(tctx, address, &name,
 479                                   NBT_NODE_H | NBT_NM_GROUP, false, NBT_RCODE_OK);
 480
 481         name.type = NBT_NAME_PDC;
 482         ret &= nbt_test_wins_name(tctx, address, &name,
 483                                   NBT_NODE_H, true, NBT_RCODE_OK);
 484
 485         name.type = 0xBF;
 486         ret &= nbt_test_wins_name(tctx, address, &name,
 487                                   NBT_NODE_H, true, NBT_RCODE_OK);
 488
 489         name.type = 0xBE;
 490         ret &= nbt_test_wins_name(tctx, address, &name,
 491                                   NBT_NODE_H, false, NBT_RCODE_OK);
 492
 493         name.scope = "example";
 494         name.type = 0x72;
 495         ret &= nbt_test_wins_name(tctx, address, &name,
 496                                   NBT_NODE_H, true, NBT_RCODE_OK);
 497
 498         name.scope = "example";
 499         name.type = 0x71;
 500         ret &= nbt_test_wins_name(tctx, address, &name,
 501                                   NBT_NODE_H | NBT_NM_GROUP, false, NBT_RCODE_OK);
 502
 503         name.scope = "foo.example.com";
 504         name.type = 0x72;
 505         ret &= nbt_test_wins_name(tctx, address, &name,
 506                                   NBT_NODE_H, false, NBT_RCODE_OK);
 507
 508         name.name = talloc_asprintf(tctx, "_T\01-%5u.foo", r);
 509         ret &= nbt_test_wins_name(tctx, address, &name,
 510                                   NBT_NODE_H, false, NBT_RCODE_OK);
 511
 512         name.name = "";
 513         ret &= nbt_test_wins_name(tctx, address, &name,
 514                                   NBT_NODE_H, false, NBT_RCODE_OK);
 515
 516         name.name = talloc_asprintf(tctx, ".");
 517         ret &= nbt_test_wins_name(tctx, address, &name,
 518                                   NBT_NODE_H, false, NBT_RCODE_OK);
 519
 520         name.name = talloc_asprintf(tctx, "%5u-\377\200\300FOO", r);
 521         ret &= nbt_test_wins_name(tctx, address, &name,
 522                                   NBT_NODE_H, false, NBT_RCODE_OK);
 523
 524         name.scope = test_nbt_wins_scope_string(tctx, 237);
 525         ret &= nbt_test_wins_name(tctx, address, &name,
 526                                   NBT_NODE_H, false, NBT_RCODE_OK);
 527
 528         name.scope = test_nbt_wins_scope_string(tctx, 238);
 529         ret &= nbt_test_wins_name(tctx, address, &name,
 530                                   NBT_NODE_H, false, NBT_RCODE_SVR);
 531
 532         return ret;
 533 }
 534
 535 /*
 536   test WINS operations
 537 */
 538 struct torture_suite *torture_nbt_wins(TALLOC_CTX *mem_ctx)
 539 {
 540         struct torture_suite *suite = torture_suite_create(mem_ctx, "wins");
 541
 542         torture_suite_add_simple_test(suite, "wins", nbt_test_wins);
 543
 544         return suite;
 545 }