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                                               struct nbt_name_request *);
 174                                 TEVENT_FD_WRITEABLE(nbtsock->fde);
 175                                 break;
 176                         }
 177                 }
 178
 179                 status = nbt_name_register_recv(req, tctx, &name_register);
 180                 if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 181                         torture_assert_ntstatus_ok(tctx, status,
 182                                 talloc_asprintf(tctx, "No response from %s for name register\n",
 183                                                 address));
 184                 }
 185                 torture_assert_ntstatus_ok(tctx, status,
 186                         talloc_asprintf(tctx, "Bad response from %s for name register\n",
 187                                         address));
 188
 189                 CHECK_VALUE(tctx, name_register.out.rcode, 0);
 190                 CHECK_STRING(tctx, name_register.out.reply_addr, myaddress);
 191         }
 192
 193         torture_comment(tctx, "register the name correct address\n");
 194         io.in.name = *name;
 195         io.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 196         l = str_list_make_single(tctx, address);
 197         io.in.wins_servers = discard_const_p(const char *, l);
 198         l = str_list_make_single(tctx, myaddress);
 199         io.in.addresses = discard_const_p(const char *, l);
 200         io.in.nb_flags = nb_flags;
 201         io.in.ttl = 300000;
 202
 203         status = nbt_name_register_wins(nbtsock, tctx, &io);
 204         torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name register", address));
 205
 206         CHECK_STRING(tctx, io.out.wins_server, address);
 207         CHECK_VALUE(tctx, io.out.rcode, register_rcode);
 208
 209         if (register_rcode != NBT_RCODE_OK) {
 210                 return true;
 211         }
 212
 213         if (name->type != NBT_NAME_MASTER &&
 214             name->type != NBT_NAME_LOGON &&
 215             name->type != NBT_NAME_BROWSER &&
 216             (nb_flags & NBT_NM_GROUP)) {
 217                 torture_comment(tctx, "Try to register as non-group\n");
 218                 io.in.nb_flags &= ~NBT_NM_GROUP;
 219                 status = nbt_name_register_wins(nbtsock, tctx, &io);
 220                 torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name register\n",
 221                         address));
 222                 CHECK_VALUE(tctx, io.out.rcode, NBT_RCODE_ACT);
 223         }
 224
 225         torture_comment(tctx, "query the name to make sure its there\n");
 226         query.in.name = *name;
 227         query.in.dest_addr = address;
 228         query.in.dest_port = lpcfg_nbt_port(tctx->lp_ctx);
 229         query.in.broadcast = false;
 230         query.in.wins_lookup = true;
 231         query.in.timeout = 3;
 232         query.in.retries = 0;
 233
 234         status = nbt_name_query(nbtsock, tctx, &query);
 235         if (name->type == NBT_NAME_MASTER) {
 236                 torture_assert_ntstatus_equal(
 237                           tctx, status, NT_STATUS_OBJECT_NAME_NOT_FOUND,
 238                           talloc_asprintf(tctx, "Bad response from %s for name query", address));
 239                 return true;
 240         }
 241         torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 242
 243         CHECK_NAME(tctx, query.out.name, *name);
 244         CHECK_VALUE(tctx, query.out.num_addrs, 1);
 245         if (name->type != NBT_NAME_LOGON &&
 246             (nb_flags & NBT_NM_GROUP)) {
 247                 CHECK_STRING(tctx, query.out.reply_addrs[0], "255.255.255.255");
 248         } else {
 249                 CHECK_STRING(tctx, query.out.reply_addrs[0], myaddress);
 250         }
 251
 252
 253         query.in.name.name = strupper_talloc(tctx, name->name);
 254         if (query.in.name.name &&
 255             strcmp(query.in.name.name, name->name) != 0) {
 256                 torture_comment(tctx, "check case sensitivity\n");
 257                 status = nbt_name_query(nbtsock, tctx, &query);
 258                 torture_assert_ntstatus_equal(tctx, status, NT_STATUS_OBJECT_NAME_NOT_FOUND, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 259         }
 260
 261         query.in.name = *name;
 262         if (name->scope) {
 263                 query.in.name.scope = strupper_talloc(tctx, name->scope);
 264         }
 265         if (query.in.name.scope &&
 266             strcmp(query.in.name.scope, name->scope) != 0) {
 267                 torture_comment(tctx, "check case sensitivity on scope\n");
 268                 status = nbt_name_query(nbtsock, tctx, &query);
 269                 torture_assert_ntstatus_equal(tctx, status, NT_STATUS_OBJECT_NAME_NOT_FOUND, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 270         }
 271
 272         torture_comment(tctx, "refresh the name\n");
 273         refresh.in.name = *name;
 274         refresh.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 275         l = str_list_make_single(tctx, address);
 276         refresh.in.wins_servers = discard_const_p(const char *, l);
 277         l = str_list_make_single(tctx, myaddress);
 278         refresh.in.addresses = discard_const_p(const char *, l);
 279         refresh.in.nb_flags = nb_flags;
 280         refresh.in.ttl = 12345;
 281
 282         status = nbt_name_refresh_wins(nbtsock, tctx, &refresh);
 283         if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 284                 torture_assert_ntstatus_ok(tctx, status,
 285                         talloc_asprintf(tctx, "No response from %s for name refresh",
 286                                         address));
 287         }
 288         torture_assert_ntstatus_ok(tctx, status,
 289                 talloc_asprintf(tctx, "Bad response from %s for name refresh",
 290                                 address));
 291
 292         CHECK_STRING(tctx, refresh.out.wins_server, address);
 293         CHECK_VALUE(tctx, refresh.out.rcode, 0);
 294
 295         printf("release the name\n");
 296         release.in.name = *name;
 297         release.in.dest_port = lpcfg_nbt_port(tctx->lp_ctx);
 298         release.in.dest_addr = address;
 299         release.in.address = myaddress;
 300         release.in.nb_flags = nb_flags;
 301         release.in.broadcast = false;
 302         release.in.timeout = 3;
 303         release.in.retries = 0;
 304
 305         status = nbt_name_release(nbtsock, tctx, &release);
 306         if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 307                 torture_assert_ntstatus_ok(tctx, status,
 308                         talloc_asprintf(tctx, "No response from %s for name release",
 309                                         address));
 310         }
 311         torture_assert_ntstatus_ok(tctx, status,
 312                 talloc_asprintf(tctx, "Bad response from %s for name release",
 313                                 address));
 314
 315         CHECK_NAME(tctx, release.out.name, *name);
 316         CHECK_VALUE(tctx, release.out.rcode, 0);
 317
 318         if (nb_flags & NBT_NM_GROUP) {
 319                 /* ignore this for group names */
 320         } else if (!low_port) {
 321                 torture_comment(tctx, "no low port - skip: register the name with a wrong address\n");
 322         } else {
 323                 torture_comment(tctx, "register the name with a wrong address (makes the next request slow!)\n");
 324                 io.in.name = *name;
 325                 io.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 326                 io.in.wins_servers = const_str_list(
 327                         str_list_make_single(tctx, address));
 328                 io.in.addresses = const_str_list(
 329                         str_list_make_single(tctx, "127.64.64.1"));
 330                 io.in.nb_flags = nb_flags;
 331                 io.in.ttl = 300000;
 332
 333                 status = nbt_name_register_wins(nbtsock, tctx, &io);
 334                 if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 335                         torture_assert_ntstatus_ok(tctx, status,
 336                                 talloc_asprintf(tctx, "No response from %s for name register\n",
 337                                                 address));
 338                 }
 339                 torture_assert_ntstatus_ok(tctx, status,
 340                         talloc_asprintf(tctx, "Bad response from %s for name register\n",
 341                                         address));
 342
 343                 CHECK_STRING(tctx, io.out.wins_server, address);
 344                 CHECK_VALUE(tctx, io.out.rcode, 0);
 345         }
 346
 347         torture_comment(tctx, "refresh the name with the correct address\n");
 348         refresh.in.name = *name;
 349         refresh.in.wins_port = lpcfg_nbt_port(tctx->lp_ctx);
 350         refresh.in.wins_servers = const_str_list(
 351                         str_list_make_single(tctx, address));
 352         refresh.in.addresses = const_str_list(
 353                         str_list_make_single(tctx, myaddress));
 354         refresh.in.nb_flags = nb_flags;
 355         refresh.in.ttl = 12345;
 356
 357         status = nbt_name_refresh_wins(nbtsock, tctx, &refresh);
 358         if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
 359                 torture_assert_ntstatus_ok(tctx, status,
 360                         talloc_asprintf(tctx, "No response from %s for name refresh",
 361                                         address));
 362         }
 363         torture_assert_ntstatus_ok(tctx, status,
 364                 talloc_asprintf(tctx, "Bad response from %s for name refresh",
 365                                 address));
 366
 367         CHECK_STRING(tctx, refresh.out.wins_server, address);
 368         CHECK_VALUE(tctx, refresh.out.rcode, 0);
 369
 370         torture_comment(tctx, "release the name\n");
 371         release.in.name = *name;
 372         release.in.dest_port = lpcfg_nbt_port(tctx->lp_ctx);
 373         release.in.dest_addr = address;
 374         release.in.address = myaddress;
 375         release.in.nb_flags = nb_flags;
 376         release.in.broadcast = false;
 377         release.in.timeout = 3;
 378         release.in.retries = 0;
 379
 380         status = nbt_name_release(nbtsock, tctx, &release);
 381         torture_assert_ntstatus_ok(tctx, status, talloc_asprintf(tctx, "Bad response from %s for name query", address));
 382
 383         CHECK_NAME(tctx, release.out.name, *name);
 384         CHECK_VALUE(tctx, release.out.rcode, 0);
 385
 386         torture_comment(tctx, "release again\n");
 387         status = nbt_name_release(nbtsock, tctx, &release);
 388         torture_assert_ntstatus_ok(tctx, status,
 389                                 talloc_asprintf(tctx, "Bad response from %s for name query",
 390                        address));
 391
 392         CHECK_NAME(tctx, release.out.name, *name);
 393         CHECK_VALUE(tctx, release.out.rcode, 0);
 394
 395
 396         torture_comment(tctx, "query the name to make sure its gone\n");
 397         query.in.name = *name;
 398         status = nbt_name_query(nbtsock, tctx, &query);
 399         if (name->type != NBT_NAME_LOGON &&
 400             (nb_flags & NBT_NM_GROUP)) {
 401                 torture_assert_ntstatus_ok(tctx, status,
 402                                 "ERROR: Name query failed after group release");
 403         } else {
 404                 torture_assert_ntstatus_equal(tctx, status,
 405                                                                           NT_STATUS_OBJECT_NAME_NOT_FOUND,
 406                                 "Incorrect response to name query");
 407         }
 408
 409         return true;
 410 }
 411
 412
 413 static char *test_nbt_wins_scope_string(TALLOC_CTX *mem_ctx, uint8_t count)
 414 {
 415         char *res;
 416         uint8_t i;
 417
 418         res = talloc_array(mem_ctx, char, count+1);
 419         if (res == NULL) {
 420                 return NULL;
 421         }
 422
 423         for (i=0; i < count; i++) {
 424                 switch (i) {
 425                 case 63:
 426                 case 63 + 1 + 63:
 427                 case 63 + 1 + 63 + 1 + 63:
 428                         res[i] = '.';
 429                         break;
 430                 default:
 431                         res[i] = '0' + (i%10);
 432                         break;
 433                 }
 434         }
 435
 436         res[count] = '\0';
 437
 438         talloc_set_name_const(res, res);
 439
 440         return res;
 441 }
 442
 443 /*
 444   test operations against a WINS server
 445 */
 446 static bool nbt_test_wins(struct torture_context *tctx)
 447 {
 448         struct nbt_name name;
 449         uint32_t r = (uint32_t)(random() % (100000));
 450         const char *address;
 451         bool ret = true;
 452
 453         if (!torture_nbt_get_name(tctx, &name, &address))
 454                 return false;
 455
 456         name.name = talloc_asprintf(tctx, "_TORTURE-%5u", r);
 457
 458         name.type = NBT_NAME_CLIENT;
 459         name.scope = NULL;
 460         ret &= nbt_test_wins_name(tctx, address, &name,
 461                                   NBT_NODE_H, true, NBT_RCODE_OK);
 462
 463         name.type = NBT_NAME_MASTER;
 464         ret &= nbt_test_wins_name(tctx, address, &name,
 465                                   NBT_NODE_H, false, NBT_RCODE_OK);
 466
 467         ret &= nbt_test_wins_name(tctx, address, &name,
 468                                   NBT_NODE_H | NBT_NM_GROUP, false, NBT_RCODE_OK);
 469
 470         name.type = NBT_NAME_SERVER;
 471         ret &= nbt_test_wins_name(tctx, address, &name,
 472                                   NBT_NODE_H, true, NBT_RCODE_OK);
 473
 474         name.type = NBT_NAME_LOGON;
 475         ret &= nbt_test_wins_name(tctx, address, &name,
 476                                   NBT_NODE_H | NBT_NM_GROUP, false, NBT_RCODE_OK);
 477
 478         name.type = NBT_NAME_BROWSER;
 479         ret &= nbt_test_wins_name(tctx, address, &name,
 480                                   NBT_NODE_H | NBT_NM_GROUP, false, NBT_RCODE_OK);
 481
 482         name.type = NBT_NAME_PDC;
 483         ret &= nbt_test_wins_name(tctx, address, &name,
 484                                   NBT_NODE_H, true, NBT_RCODE_OK);
 485
 486         name.type = 0xBF;
 487         ret &= nbt_test_wins_name(tctx, address, &name,
 488                                   NBT_NODE_H, true, NBT_RCODE_OK);
 489
 490         name.type = 0xBE;
 491         ret &= nbt_test_wins_name(tctx, address, &name,
 492                                   NBT_NODE_H, false, NBT_RCODE_OK);
 493
 494         name.scope = "example";
 495         name.type = 0x72;
 496         ret &= nbt_test_wins_name(tctx, address, &name,
 497                                   NBT_NODE_H, true, NBT_RCODE_OK);
 498
 499         name.scope = "example";
 500         name.type = 0x71;
 501         ret &= nbt_test_wins_name(tctx, address, &name,
 502                                   NBT_NODE_H | NBT_NM_GROUP, false, NBT_RCODE_OK);
 503
 504         name.scope = "foo.example.com";
 505         name.type = 0x72;
 506         ret &= nbt_test_wins_name(tctx, address, &name,
 507                                   NBT_NODE_H, false, NBT_RCODE_OK);
 508
 509         name.name = talloc_asprintf(tctx, "_T\01-%5u.foo", r);
 510         ret &= nbt_test_wins_name(tctx, address, &name,
 511                                   NBT_NODE_H, false, NBT_RCODE_OK);
 512
 513         name.name = "";
 514         ret &= nbt_test_wins_name(tctx, address, &name,
 515                                   NBT_NODE_H, false, NBT_RCODE_OK);
 516
 517         name.name = talloc_asprintf(tctx, ".");
 518         ret &= nbt_test_wins_name(tctx, address, &name,
 519                                   NBT_NODE_H, false, NBT_RCODE_OK);
 520
 521         name.name = talloc_asprintf(tctx, "%5u-\377\200\300FOO", r);
 522         ret &= nbt_test_wins_name(tctx, address, &name,
 523                                   NBT_NODE_H, false, NBT_RCODE_OK);
 524
 525         name.scope = test_nbt_wins_scope_string(tctx, 237);
 526         ret &= nbt_test_wins_name(tctx, address, &name,
 527                                   NBT_NODE_H, false, NBT_RCODE_OK);
 528
 529         name.scope = test_nbt_wins_scope_string(tctx, 238);
 530         ret &= nbt_test_wins_name(tctx, address, &name,
 531                                   NBT_NODE_H, false, NBT_RCODE_SVR);
 532
 533         return ret;
 534 }
 535
 536 /*
 537   test WINS operations
 538 */
 539 struct torture_suite *torture_nbt_wins(TALLOC_CTX *mem_ctx)
 540 {
 541         struct torture_suite *suite = torture_suite_create(mem_ctx, "wins");
 542
 543         torture_suite_add_simple_test(suite, "wins", nbt_test_wins);
 544
 545         return suite;
 546 }