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
  68         load_interface_list(tctx, tctx->lp_ctx, &ifaces);
  69
  70         myaddress = talloc_strdup(tctx, iface_list_best_ip(ifaces, address));
  71
  72         socket_address = socket_address_from_strings(tctx,
  73                                                      nbtsock->sock->backend_name,
  74                                                      myaddress, lpcfg_nbt_port(tctx->lp_ctx));
  75         torture_assert(tctx, socket_address != NULL,
  76                                    "Error getting address");
  77
  78         /* we do the listen here to ensure the WINS server receives the packets from
  79            the right IP */
  80         status = socket_listen(nbtsock->sock, socket_address, 0, 0);
  81         talloc_free(socket_address);
  82         if (!NT_STATUS_IS_OK(status)) {
  83                 low_port = false;
  84                 socket_address = socket_address_from_strings(tctx,
  85                                                              nbtsock->sock->backend_name,
  86                                                              myaddress, 0);
  87                 torture_assert(tctx, socket_address != NULL,
  88                                "Error getting address");
  89
  90                 status = socket_listen(nbtsock->sock, socket_address, 0, 0);
  91                 talloc_free(socket_address);
  92                 torture_assert_ntstatus_ok(tctx, status,
  93                                            "socket_listen for WINS failed");
  94         }
  95
  96         torture_comment(tctx, "Testing name registration to WINS with name %s at %s nb_flags=0x%x\n",
  97                nbt_name_string(tctx, name), myaddress, nb_flags);
  98
  99         torture_comment(tctx, "release the name\n");
 100         release.in.name = *name;
 101         release.in.dest_port = lpcfg_nbt_port(tctx->lp_ctx);
 102         release.in.dest_addr = address;
 103         release.in.address = myaddress;
 104         release.in.nb_flags = nb_flags;
 105         release.in.broadcast = false;
 106         release.in.timeout = 3;
 107         release.in.retries = 0;
 108
 109         status = nbt_name_release(nbtsock, tctx, &release);
 110         torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 111         CHECK_VALUE(tctx, release.out.rcode, 0);
 112
 113         if (nb_flags & NBT_NM_GROUP) {
 114                 /* ignore this for group names */
 115         } else if (!low_port) {
 116                 torture_comment(tctx, "no low port - skip: register the name with a wrong address\n");
 117         } else {
 118                 torture_comment(tctx, "register the name with a wrong address (makes the next request slow!)\n");
 119                 io.in.name = *name;
 120                 io.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 121                 io.in.wins_servers = const_str_list(
 122                         str_list_make_single(tctx, address));
 123                 io.in.addresses = const_str_list(
 124                         str_list_make_single(tctx, "127.64.64.1"));
 125                 io.in.nb_flags = nb_flags;
 126                 io.in.ttl = 300000;
 127
 128                 status = nbt_name_register_wins(nbtsock, tctx, &io);
 129                 if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 130                         torture_assert_ntstatus_ok(tctx, status,
 131                                 talloc_asprintf(tctx, "No response from %s for name register\n",
 132                                                 address));
 133                 }
 134                 torture_assert_ntstatus_ok(tctx, status,
 135                         talloc_asprintf(tctx, "Bad response from %s for name register\n",
 136                                         address));
 137
 138                 CHECK_STRING(tctx, io.out.wins_server, address);
 139                 CHECK_VALUE(tctx, io.out.rcode, 0);
 140
 141                 torture_comment(tctx, "register the name correct address\n");
 142                 name_register.in.name           = *name;
 143                 name_register.in.dest_port      = lpcfg_nbt_port(tctx->lp_ctx);
 144                 name_register.in.dest_addr      = address;
 145                 name_register.in.address        = myaddress;
 146                 name_register.in.nb_flags       = nb_flags;
 147                 name_register.in.register_demand= false;
 148                 name_register.in.broadcast      = false;
 149                 name_register.in.multi_homed    = true;
 150                 name_register.in.ttl            = 300000;
 151                 name_register.in.timeout        = 3;
 152                 name_register.in.retries        = 2;
 153
 154                 /*
 155                  * test if the server ignores resent requests
 156                  */
 157                 req = nbt_name_register_send(nbtsock, &name_register);
 158                 while (true) {
 159                         tevent_loop_once(nbtsock->event_ctx);
 160                         if (req->state != NBT_REQUEST_WAIT) {
 161                                 break;
 162                         }
 163                         if (req->received_wack) {
 164                                 /*
 165                                  * if we received the wack response
 166                                  * we resend the request and the
 167                                  * server should ignore that
 168                                  * and not handle it as new request
 169                                  */
 170                                 req->state = NBT_REQUEST_SEND;
 171                                 DLIST_ADD_END(nbtsock->send_queue, req,
 172                                               struct nbt_name_request *);
 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         io.in.wins_servers = (const char **)str_list_make_single(tctx, address);
 196         io.in.addresses = (const char **)str_list_make_single(tctx, myaddress);
 197         io.in.nb_flags = nb_flags;
 198         io.in.ttl = 300000;
 199
 200         status = nbt_name_register_wins(nbtsock, tctx, &io);
 201         torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name register", address));
 202
 203         CHECK_STRING(tctx, io.out.wins_server, address);
 204         CHECK_VALUE(tctx, io.out.rcode, register_rcode);
 205
 206         if (register_rcode != NBT_RCODE_OK) {
 207                 return true;
 208         }
 209
 210         if (name->type != NBT_NAME_MASTER &&
 211             name->type != NBT_NAME_LOGON &&
 212             name->type != NBT_NAME_BROWSER &&
 213             (nb_flags & NBT_NM_GROUP)) {
 214                 torture_comment(tctx, "Try to register as non-group\n");
 215                 io.in.nb_flags &= ~NBT_NM_GROUP;
 216                 status = nbt_name_register_wins(nbtsock, tctx, &io);
 217                 torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name register\n",
 218                         address));
 219                 CHECK_VALUE(tctx, io.out.rcode, NBT_RCODE_ACT);
 220         }
 221
 222         torture_comment(tctx, "query the name to make sure its there\n");
 223         query.in.name = *name;
 224         query.in.dest_addr = address;
 225         query.in.dest_port = lpcfg_nbt_port(tctx->lp_ctx);
 226         query.in.broadcast = false;
 227         query.in.wins_lookup = true;
 228         query.in.timeout = 3;
 229         query.in.retries = 0;
 230
 231         status = nbt_name_query(nbtsock, tctx, &query);
 232         if (name->type == NBT_NAME_MASTER) {
 233                 torture_assert_ntstatus_equal(
 234                           tctx, status, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 235                           talloc_asprintf(tctx, "Bad response from %s for name query", address));
 236                 return true;
 237         }
 238         torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 239
 240         CHECK_NAME(tctx, query.out.name, *name);
 241         CHECK_VALUE(tctx, query.out.num_addrs, 1);
 242         if (name->type != NBT_NAME_LOGON &&
 243             (nb_flags & NBT_NM_GROUP)) {
 244                 CHECK_STRING(tctx, query.out.reply_addrs[0], "255.255.255.255");
 245         } else {
 246                 CHECK_STRING(tctx, query.out.reply_addrs[0], myaddress);
 247         }
 248
 249
 250         query.in.name.name = strupper_talloc(tctx, name->name);
 251         if (query.in.name.name &&
 252             strcmp(query.in.name.name, name->name) != 0) {
 253                 torture_comment(tctx, "check case sensitivity\n");
 254                 status = nbt_name_query(nbtsock, tctx, &query);
 255                 torture_assert_ntstatus_equal(tctx, status, NT_STATUS_OBJECT_NAME_NOT_FOUND, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 256         }
 257
 258         query.in.name = *name;
 259         if (name->scope) {
 260                 query.in.name.scope = strupper_talloc(tctx, name->scope);
 261         }
 262         if (query.in.name.scope &&
 263             strcmp(query.in.name.scope, name->scope) != 0) {
 264                 torture_comment(tctx, "check case sensitivity on scope\n");
 265                 status = nbt_name_query(nbtsock, tctx, &query);
 266                 torture_assert_ntstatus_equal(tctx, status, NT_STATUS_OBJECT_NAME_NOT_FOUND, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 267         }
 268
 269         torture_comment(tctx, "refresh the name\n");
 270         refresh.in.name = *name;
 271         refresh.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 272         refresh.in.wins_servers = (const char **)str_list_make_single(tctx, address);
 273         refresh.in.addresses = (const char **)str_list_make_single(tctx, myaddress);
 274         refresh.in.nb_flags = nb_flags;
 275         refresh.in.ttl = 12345;
 276
 277         status = nbt_name_refresh_wins(nbtsock, tctx, &refresh);
 278         if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 279                 torture_assert_ntstatus_ok(tctx, status,
 280                         talloc_asprintf(tctx, "No response from %s for name refresh",
 281                                         address));
 282         }
 283         torture_assert_ntstatus_ok(tctx, status,
 284                 talloc_asprintf(tctx, "Bad response from %s for name refresh",
 285                                 address));
 286
 287         CHECK_STRING(tctx, refresh.out.wins_server, address);
 288         CHECK_VALUE(tctx, refresh.out.rcode, 0);
 289
 290         printf("release the name\n");
 291         release.in.name = *name;
 292         release.in.dest_port = lpcfg_nbt_port(tctx->lp_ctx);
 293         release.in.dest_addr = address;
 294         release.in.address = myaddress;
 295         release.in.nb_flags = nb_flags;
 296         release.in.broadcast = false;
 297         release.in.timeout = 3;
 298         release.in.retries = 0;
 299
 300         status = nbt_name_release(nbtsock, tctx, &release);
 301         if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 302                 torture_assert_ntstatus_ok(tctx, status,
 303                         talloc_asprintf(tctx, "No response from %s for name release",
 304                                         address));
 305         }
 306         torture_assert_ntstatus_ok(tctx, status,
 307                 talloc_asprintf(tctx, "Bad response from %s for name release",
 308                                 address));
 309
 310         CHECK_NAME(tctx, release.out.name, *name);
 311         CHECK_VALUE(tctx, release.out.rcode, 0);
 312
 313         if (nb_flags & NBT_NM_GROUP) {
 314                 /* ignore this for group names */
 315         } else if (!low_port) {
 316                 torture_comment(tctx, "no low port - skip: register the name with a wrong address\n");
 317         } else {
 318                 torture_comment(tctx, "register the name with a wrong address (makes the next request slow!)\n");
 319                 io.in.name = *name;
 320                 io.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 321                 io.in.wins_servers = const_str_list(
 322                         str_list_make_single(tctx, address));
 323                 io.in.addresses = const_str_list(
 324                         str_list_make_single(tctx, "127.64.64.1"));
 325                 io.in.nb_flags = nb_flags;
 326                 io.in.ttl = 300000;
 327
 328                 status = nbt_name_register_wins(nbtsock, tctx, &io);
 329                 if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 330                         torture_assert_ntstatus_ok(tctx, status,
 331                                 talloc_asprintf(tctx, "No response from %s for name register\n",
 332                                                 address));
 333                 }
 334                 torture_assert_ntstatus_ok(tctx, status,
 335                         talloc_asprintf(tctx, "Bad response from %s for name register\n",
 336                                         address));
 337
 338                 CHECK_STRING(tctx, io.out.wins_server, address);
 339                 CHECK_VALUE(tctx, io.out.rcode, 0);
 340         }
 341
 342         torture_comment(tctx, "refresh the name with the correct address\n");
 343         refresh.in.name = *name;
 344         refresh.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 345         refresh.in.wins_servers = const_str_list(
 346                         str_list_make_single(tctx, address));
 347         refresh.in.addresses = const_str_list(
 348                         str_list_make_single(tctx, myaddress));
 349         refresh.in.nb_flags = nb_flags;
 350         refresh.in.ttl = 12345;
 351
 352         status = nbt_name_refresh_wins(nbtsock, tctx, &refresh);
 353         if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 354                 torture_assert_ntstatus_ok(tctx, status,
 355                         talloc_asprintf(tctx, "No response from %s for name refresh",
 356                                         address));
 357         }
 358         torture_assert_ntstatus_ok(tctx, status,
 359                 talloc_asprintf(tctx, "Bad response from %s for name refresh",
 360                                 address));
 361
 362         CHECK_STRING(tctx, refresh.out.wins_server, address);
 363         CHECK_VALUE(tctx, refresh.out.rcode, 0);
 364
 365         torture_comment(tctx, "release the name\n");
 366         release.in.name = *name;
 367         release.in.dest_port = lpcfg_nbt_port(tctx->lp_ctx);
 368         release.in.dest_addr = address;
 369         release.in.address = myaddress;
 370         release.in.nb_flags = nb_flags;
 371         release.in.broadcast = false;
 372         release.in.timeout = 3;
 373         release.in.retries = 0;
 374
 375         status = nbt_name_release(nbtsock, tctx, &release);
 376         torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 377
 378         CHECK_NAME(tctx, release.out.name, *name);
 379         CHECK_VALUE(tctx, release.out.rcode, 0);
 380
 381         torture_comment(tctx, "release again\n");
 382         status = nbt_name_release(nbtsock, tctx, &release);
 383         torture_assert_ntstatus_ok(tctx, status,
 384                                 talloc_asprintf(tctx, "Bad response from %s for name query",
 385                        address));
 386
 387         CHECK_NAME(tctx, release.out.name, *name);
 388         CHECK_VALUE(tctx, release.out.rcode, 0);
 389
 390
 391         torture_comment(tctx, "query the name to make sure its gone\n");
 392         query.in.name = *name;
 393         status = nbt_name_query(nbtsock, tctx, &query);
 394         if (name->type != NBT_NAME_LOGON &&
 395             (nb_flags & NBT_NM_GROUP)) {
 396                 torture_assert_ntstatus_ok(tctx, status,
 397                                 "ERROR: Name query failed after group release");
 398         } else {
 399                 torture_assert_ntstatus_equal(tctx, status,
 400                                                                           NT_STATUS_OBJECT_NAME_NOT_FOUND,
 401                                 "Incorrect response to name query");
 402         }
 403
 404         return true;
 405 }
 406
 407
 408 static char *test_nbt_wins_scope_string(TALLOC_CTX *mem_ctx, uint8_t count)
 409 {
 410         char *res;
 411         uint8_t i;
 412
 413         res = talloc_array(mem_ctx, char, count+1);
 414         if (res == NULL) {
 415                 return NULL;
 416         }
 417
 418         for (i=0; i < count; i++) {
 419                 switch (i) {
 420                 case 63:
 421                 case 63 + 1 + 63:
 422                 case 63 + 1 + 63 + 1 + 63:
 423                         res[i] = '.';
 424                         break;
 425                 default:
 426                         res[i] = '0' + (i%10);
 427                         break;
 428                 }
 429         }
 430
 431         res[count] = '\0';
 432
 433         talloc_set_name_const(res, res);
 434
 435         return res;
 436 }
 437
 438 /*
 439   test operations against a WINS server
 440 */
 441 static bool nbt_test_wins(struct torture_context *tctx)
 442 {
 443         struct nbt_name name;
 444         uint32_t r = (uint32_t)(random() % (100000));
 445         const char *address;
 446         bool ret = true;
 447
 448         if (!torture_nbt_get_name(tctx, &name, &address))
 449                 return false;
 450
 451         name.name = talloc_asprintf(tctx, "_TORTURE-%5u", r);
 452
 453         name.type = NBT_NAME_CLIENT;
 454         name.scope = NULL;
 455         ret &= nbt_test_wins_name(tctx, address, &name,
 456                                   NBT_NODE_H, true, NBT_RCODE_OK);
 457
 458         name.type = NBT_NAME_MASTER;
 459         ret &= nbt_test_wins_name(tctx, address, &name,
 460                                   NBT_NODE_H, false, NBT_RCODE_OK);
 461
 462         ret &= nbt_test_wins_name(tctx, address, &name,
 463                                   NBT_NODE_H | NBT_NM_GROUP, false, NBT_RCODE_OK);
 464
 465         name.type = NBT_NAME_SERVER;
 466         ret &= nbt_test_wins_name(tctx, address, &name,
 467                                   NBT_NODE_H, true, NBT_RCODE_OK);
 468
 469         name.type = NBT_NAME_LOGON;
 470         ret &= nbt_test_wins_name(tctx, address, &name,
 471                                   NBT_NODE_H | NBT_NM_GROUP, false, NBT_RCODE_OK);
 472
 473         name.type = NBT_NAME_BROWSER;
 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_PDC;
 478         ret &= nbt_test_wins_name(tctx, address, &name,
 479                                   NBT_NODE_H, true, NBT_RCODE_OK);
 480
 481         name.type = 0xBF;
 482         ret &= nbt_test_wins_name(tctx, address, &name,
 483                                   NBT_NODE_H, true, NBT_RCODE_OK);
 484
 485         name.type = 0xBE;
 486         ret &= nbt_test_wins_name(tctx, address, &name,
 487                                   NBT_NODE_H, false, NBT_RCODE_OK);
 488
 489         name.scope = "example";
 490         name.type = 0x72;
 491         ret &= nbt_test_wins_name(tctx, address, &name,
 492                                   NBT_NODE_H, true, NBT_RCODE_OK);
 493
 494         name.scope = "example";
 495         name.type = 0x71;
 496         ret &= nbt_test_wins_name(tctx, address, &name,
 497                                   NBT_NODE_H | NBT_NM_GROUP, false, NBT_RCODE_OK);
 498
 499         name.scope = "foo.example.com";
 500         name.type = 0x72;
 501         ret &= nbt_test_wins_name(tctx, address, &name,
 502                                   NBT_NODE_H, false, NBT_RCODE_OK);
 503
 504         name.name = talloc_asprintf(tctx, "_T\01-%5u.foo", r);
 505         ret &= nbt_test_wins_name(tctx, address, &name,
 506                                   NBT_NODE_H, false, NBT_RCODE_OK);
 507
 508         name.name = "";
 509         ret &= nbt_test_wins_name(tctx, address, &name,
 510                                   NBT_NODE_H, false, NBT_RCODE_OK);
 511
 512         name.name = talloc_asprintf(tctx, ".");
 513         ret &= nbt_test_wins_name(tctx, address, &name,
 514                                   NBT_NODE_H, false, NBT_RCODE_OK);
 515
 516         name.name = talloc_asprintf(tctx, "%5u-\377\200\300FOO", r);
 517         ret &= nbt_test_wins_name(tctx, address, &name,
 518                                   NBT_NODE_H, false, NBT_RCODE_OK);
 519
 520         name.scope = test_nbt_wins_scope_string(tctx, 237);
 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, 238);
 525         ret &= nbt_test_wins_name(tctx, address, &name,
 526                                   NBT_NODE_H, false, NBT_RCODE_SVR);
 527
 528         return ret;
 529 }
 530
 531 /*
 532   test WINS operations
 533 */
 534 struct torture_suite *torture_nbt_wins(TALLOC_CTX *mem_ctx)
 535 {
 536         struct torture_suite *suite = torture_suite_create(mem_ctx, "wins");
 537
 538         torture_suite_add_simple_test(suite, "wins", nbt_test_wins);
 539
 540         return suite;
 541 }