ctdb/tests/src/ctdb_takeover_tests.c

   1 /*
   2    Tests for ctdb_takeover.c
   3
   4    Copyright (C) Martin Schwenke 2011
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "ctdbd_test.c"
  21
  22 /* This is lazy... but it is test code! */
  23 #define CTDB_TEST_MAX_NODES 256
  24 #define CTDB_TEST_MAX_IPS 1024
  25
  26 /* Format of each line is "IP pnn" - the separator has to be at least
  27  * 1 space (not a tab or whatever - a space!).
  28  */
  29 static struct public_ip_list *
  30 read_ctdb_public_ip_list(TALLOC_CTX *ctx)
  31 {
  32         char line[1024];
  33         ctdb_sock_addr addr;
  34         char *t;
  35         int pnn;
  36         struct public_ip_list *last = NULL;
  37
  38         struct public_ip_list *ret = NULL;
  39
  40         while (fgets(line, sizeof(line), stdin) != NULL) {
  41
  42                 if ((t = strchr(line, ' ')) != NULL) {
  43                         /* Make line contain just the address */
  44                         *t = '\0';
  45                         /* Point to PNN or leading whitespace...  */
  46                         t++;
  47                         pnn = (int) strtol(t, (char **) NULL, 10);
  48                 } else {
  49                         /* Assume just an IP address, default to PNN -1 */
  50                         if ((t = strchr(line, '\n')) != NULL) {
  51                                 *t = '\0';
  52                         }
  53                         pnn = -1;
  54                 }
  55
  56                 if (parse_ip(line, NULL, 0, &addr)) {
  57                         if (last == NULL) {
  58                                 last = talloc(ctx, struct public_ip_list);
  59                         } else {
  60                                 last->next = talloc(ctx, struct public_ip_list);
  61                                 last = last->next;
  62                         }
  63                         last->next = NULL;
  64                         last->pnn = pnn;
  65                         memcpy(&(last->addr), &addr, sizeof(addr));
  66                         if (ret == NULL) {
  67                                 ret = last;
  68                         }
  69                 } else {
  70                         DEBUG(DEBUG_ERR, (__location__ " ERROR, bad address :%s\n", line));
  71                 }
  72         }
  73
  74         return ret;
  75 }
  76
  77 static void print_ctdb_public_ip_list(struct public_ip_list * ips)
  78 {
  79         while (ips) {
  80                 printf("%s %d\n", ctdb_addr_to_str(&(ips->addr)), ips->pnn);
  81                 ips = ips->next;
  82         }
  83 }
  84
  85 /* Read some IPs from stdin, 1 per line, parse them and then print
  86  * them back out. */
  87 static void ctdb_test_read_ctdb_public_ip_list(void)
  88 {
  89         struct public_ip_list *l;
  90
  91         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
  92
  93         l = read_ctdb_public_ip_list(tmp_ctx);
  94
  95         print_ctdb_public_ip_list(l);
  96
  97         talloc_free(tmp_ctx);
  98 }
  99
 100 static uint32_t *get_tunable_values(TALLOC_CTX *tmp_ctx,
 101                                     int numnodes,
 102                                     const char *tunable);
 103 static enum ctdb_runstate *get_runstate(TALLOC_CTX *tmp_ctx,
 104                                         int numnodes);
 105
 106 /* Format of each line is "IP CURRENT_PNN ALLOWED_PNN,...".
 107  */
 108 static bool
 109 read_ctdb_public_ip_info(TALLOC_CTX *ctx  ,
 110                          int numnodes,
 111                          struct public_ip_list ** all_ips,
 112                          struct ctdb_public_ip_list_old *** known,
 113                          struct ctdb_public_ip_list_old *** avail)
 114 {
 115         char line[1024];
 116         ctdb_sock_addr addr;
 117         char *t, *tok;
 118         struct public_ip_list * ta;
 119         int pnn, numips, curr, n, i;
 120         struct ctdb_public_ip_list_old * a;
 121
 122         struct public_ip_list *last = NULL;
 123         enum ctdb_runstate *runstate;
 124
 125         runstate = get_runstate(ctx, numnodes);
 126
 127         *known = talloc_array_size(ctx, sizeof(struct ctdb_public_ip_list_old *), CTDB_TEST_MAX_NODES);
 128         memset(*known, 0,
 129                sizeof(struct ctdb_public_ip_list_old *) * CTDB_TEST_MAX_NODES);
 130
 131         *avail = talloc_array_size(ctx, sizeof(struct ctdb_public_ip_list_old *),
 132                                    CTDB_TEST_MAX_NODES);
 133         memset(*avail, 0,
 134                sizeof(struct ctdb_public_ip_list_old *) * CTDB_TEST_MAX_NODES);
 135
 136         numips = 0;
 137         *all_ips = NULL;
 138         while (fgets(line, sizeof(line), stdin) != NULL) {
 139
 140                 /* Get rid of pesky newline */
 141                 if ((t = strchr(line, '\n')) != NULL) {
 142                         *t = '\0';
 143                 }
 144
 145                 /* Exit on an empty line */
 146                 if (line[0] == '\0') {
 147                         break;
 148                 }
 149
 150                 /* Get the IP address */
 151                 tok = strtok(line, " \t");
 152                 if (tok == NULL) {
 153                         DEBUG(DEBUG_ERR, (__location__ " WARNING, bad line ignored :%s\n", line));
 154                         continue;
 155                 }
 156
 157                 if (!parse_ip(tok, NULL, 0, &addr)) {
 158                         DEBUG(DEBUG_ERR, (__location__ " ERROR, bad address :%s\n", tok));
 159                         continue;
 160                 }
 161
 162                 numips++;
 163                 if (numips > CTDB_TEST_MAX_IPS) {
 164                         DEBUG(DEBUG_ERR, ("ERROR: Exceeding CTDB_TEST_MAX_IPS: %d\n", CTDB_TEST_MAX_IPS));
 165                         exit(1);
 166                 }
 167
 168                 /* Get the PNN */
 169                 pnn = -1;
 170                 tok = strtok(NULL, " \t");
 171                 if (tok != NULL) {
 172                         pnn = (int) strtol(tok, (char **) NULL, 10);
 173                 }
 174
 175                 /* Add address + pnn to all_ips */
 176                 if (last == NULL) {
 177                         last = talloc(ctx, struct public_ip_list);
 178                 } else {
 179                         last->next = talloc(ctx, struct public_ip_list);
 180                         last = last->next;
 181                 }
 182                 last->next = NULL;
 183                 last->pnn = pnn;
 184                 memcpy(&(last->addr), &addr, sizeof(addr));
 185                 if (*all_ips == NULL) {
 186                         *all_ips = last;
 187                 }
 188
 189                 tok = strtok(NULL, " \t#");
 190                 if (tok == NULL) {
 191                         continue;
 192                 }
 193
 194                 /* Handle allowed nodes for addr */
 195                 t = strtok(tok, ",");
 196                 while (t != NULL) {
 197                         n = (int) strtol(t, (char **) NULL, 10);
 198                         if ((*known)[n] == NULL) {
 199                                 /* Array size here has to be
 200                                  * CTDB_TEST_MAX_IPS because total
 201                                  * number of IPs isn't yet known */
 202                                 (*known)[n] = talloc_size(ctx,
 203                                                           offsetof(struct ctdb_public_ip_list_old, ips) +
 204                                                           CTDB_TEST_MAX_IPS * sizeof(struct ctdb_public_ip));
 205                                 (*known)[n]->num = 0;
 206                         }
 207                         curr = (*known)[n]->num;
 208                         (*known)[n]->ips[curr].pnn = pnn;
 209                         memcpy(&((*known)[n]->ips[curr].addr),
 210                                &addr, sizeof(addr));
 211                         (*known)[n]->num++;
 212                         t = strtok(NULL, ",");
 213                 }
 214
 215         }
 216
 217         /* Build list of all allowed IPs */
 218         a = talloc_size(ctx,
 219                         offsetof(struct ctdb_public_ip_list_old, ips) +
 220                         numips * sizeof(struct ctdb_public_ip));
 221         a->num = numips;
 222         for (ta = *all_ips, i=0; ta != NULL && i < numips ; ta = ta->next, i++) {
 223                 a->ips[i].pnn = ta->pnn;
 224                 memcpy(&(a->ips[i].addr), &(ta->addr), sizeof(ta->addr));
 225         }
 226
 227         /* Assign it to any nodes that don't have a list assigned */
 228         for (n = 0; n < numnodes; n++) {
 229                 if ((*known)[n] == NULL) {
 230                         (*known)[n] = a;
 231                 }
 232                 if (runstate[n] == CTDB_RUNSTATE_RUNNING) {
 233                         (*avail)[n] = (*known)[n];
 234                 }
 235         }
 236
 237         return true;
 238 }
 239
 240 static void print_ctdb_available_ips(int numnodes,
 241                                      struct ctdb_public_ip_list_old **avail)
 242 {
 243         int n, i;
 244
 245         for (n = 0; n < numnodes; n++) {
 246                 if ((avail[n] != NULL) && (avail[n]->num > 0)) {
 247                         printf("%d:", n);
 248                         for (i = 0; i < avail[n]->num; i++) {
 249                                 printf("%s%s",
 250                                        (i == 0) ? " " : ", ",
 251                                        ctdb_addr_to_str(&(avail[n]->ips[i].addr)));
 252                         }
 253                         printf("\n");
 254                 }
 255         }
 256 }
 257
 258 static void ctdb_test_read_ctdb_public_ip_info(const char nodestates[])
 259 {
 260         int numnodes;
 261         struct public_ip_list *l;
 262         struct ctdb_public_ip_list_old **known;
 263         struct ctdb_public_ip_list_old **avail;
 264         char *tok, *ns;
 265
 266         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
 267
 268         /* Avoid that const */
 269         ns = talloc_strdup(tmp_ctx, nodestates);
 270
 271         numnodes = 0;
 272         tok = strtok(ns, ",");
 273         while (tok != NULL) {
 274                 numnodes++;
 275                 if (numnodes > CTDB_TEST_MAX_NODES) {
 276                         DEBUG(DEBUG_ERR, ("ERROR: Exceeding CTDB_TEST_MAX_NODES: %d\n", CTDB_TEST_MAX_NODES));
 277                         exit(1);
 278                 }
 279                 tok = strtok(NULL, ",");
 280         }
 281
 282         read_ctdb_public_ip_info(tmp_ctx, numnodes, &l, &known, &avail);
 283
 284         print_ctdb_public_ip_list(l);
 285         print_ctdb_available_ips(numnodes, avail);
 286
 287         talloc_free(tmp_ctx);
 288 }
 289
 290 /* Read 2 IPs from stdin, calculate the IP distance and print it. */
 291 static void ctdb_test_ip_distance(void)
 292 {
 293         struct public_ip_list *l;
 294         uint32_t distance;
 295
 296         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
 297
 298         l = read_ctdb_public_ip_list(tmp_ctx);
 299
 300         if (l && l->next) {
 301                 distance = ip_distance(&(l->addr), &(l->next->addr));
 302                 printf ("%lu\n", (unsigned long) distance);
 303         }
 304
 305         talloc_free(tmp_ctx);
 306 }
 307
 308 /* Read some IPs from stdin, calculate the sum of the squares of the
 309  * IP distances between the 1st argument and those read that are on
 310  * the given node. The given IP must one of the ones in the list.  */
 311 static void ctdb_test_ip_distance_2_sum(const char ip[], int pnn)
 312 {
 313         struct public_ip_list *l;
 314         struct public_ip_list *t;
 315         ctdb_sock_addr addr;
 316         uint32_t distance;
 317
 318         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
 319
 320
 321         l = read_ctdb_public_ip_list(tmp_ctx);
 322
 323         if (l && parse_ip(ip, NULL, 0, &addr)) {
 324                 /* find the entry for the specified IP */
 325                 for (t=l; t!=NULL; t=t->next) {
 326                         if (ctdb_same_ip(&(t->addr), &addr)) {
 327                                 break;
 328                         }
 329                 }
 330
 331                 if (t == NULL) {
 332                         fprintf(stderr, "IP NOT PRESENT IN LIST");
 333                         exit(1);
 334                 }
 335
 336                 distance = ip_distance_2_sum(&(t->addr), l, pnn);
 337                 printf ("%lu\n", (unsigned long) distance);
 338         } else {
 339                 fprintf(stderr, "BAD INPUT");
 340                 exit(1);
 341         }
 342
 343         talloc_free(tmp_ctx);
 344 }
 345
 346 /* Read some IPs from stdin, calculate the sum of the squares of the
 347  * IP distances between the first and the rest, and print it. */
 348 static void ctdb_test_lcp2_imbalance(int pnn)
 349 {
 350         struct public_ip_list *l;
 351         uint32_t imbalance;
 352
 353         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
 354
 355         l = read_ctdb_public_ip_list(tmp_ctx);
 356
 357         imbalance = lcp2_imbalance(l, pnn);
 358         printf ("%lu\n", (unsigned long) imbalance);
 359
 360         talloc_free(tmp_ctx);
 361 }
 362
 363 static uint32_t *get_tunable_values(TALLOC_CTX *tmp_ctx,
 364                                     int numnodes,
 365                                     const char *tunable)
 366 {
 367         int i;
 368         char *tok;
 369         uint32_t *tvals = talloc_zero_array(tmp_ctx, uint32_t, numnodes);
 370         char *t = getenv(tunable);
 371
 372         if (t) {
 373                 if (strcmp(t, "1") == 0) {
 374                         for (i=0; i<numnodes; i++) {
 375                                 tvals[i] = 1;
 376                         }
 377                 } else {
 378                         tok = strtok(t, ",");
 379                         i = 0;
 380                         while (tok != NULL) {
 381                                 tvals[i] =
 382                                         (uint32_t) strtol(tok, NULL, 0);
 383                                 i++;
 384                                 tok = strtok(NULL, ",");
 385                         }
 386                         if (i != numnodes) {
 387                                 fprintf(stderr, "ERROR: Wrong number of values in %s\n", tunable);
 388                                 exit(1);
 389                         }
 390                 }
 391         }
 392
 393         return tvals;
 394 }
 395
 396 static enum ctdb_runstate *get_runstate(TALLOC_CTX *tmp_ctx,
 397                                         int numnodes)
 398 {
 399         int i;
 400         uint32_t *tvals;
 401         enum ctdb_runstate *runstate =
 402                 talloc_zero_array(tmp_ctx, enum ctdb_runstate, numnodes);
 403         char *t = getenv("CTDB_TEST_RUNSTATE");
 404
 405         if (t == NULL) {
 406                 for (i=0; i<numnodes; i++) {
 407                         runstate[i] = CTDB_RUNSTATE_RUNNING;
 408                 }
 409         } else {
 410                 tvals = get_tunable_values(tmp_ctx, numnodes, "CTDB_TEST_RUNSTATE");
 411                 for (i=0; i<numnodes; i++) {
 412                         runstate[i] = (enum ctdb_runstate) tvals[i];
 413                 }
 414                 talloc_free(tvals);
 415         }
 416
 417         return runstate;
 418 }
 419
 420 /* Fake up enough CTDB state to be able to run the IP allocation
 421  * algorithm.  Usually this sets up some standard state, sets the node
 422  * states from the command-line and reads the current IP layout from
 423  * stdin.
 424  *
 425  * However, if read_ips_for_multiple_nodes is true then each node's
 426  * idea of the IP layout is read separately from stdin.  In this mode
 427  * is doesn't make much sense to use read_ctdb_public_ip_info's
 428  * optional ALLOWED_PNN,... list in the input, since each node is
 429  * being handled separately anyway.  IPs for each node are separated
 430  * by a blank line.  This mode is for testing weird behaviours where
 431  * the IP layouts differs across nodes and we want to improve
 432  * create_merged_ip_list(), so should only be used in tests of
 433  * ipalloc().  Yes, it is a hack...  :-)
 434  */
 435 static void ctdb_test_init(const char nodestates[],
 436                            struct ctdb_context **ctdb,
 437                            struct ipalloc_state **ipalloc_state,
 438                            bool read_ips_for_multiple_nodes)
 439 {
 440         struct ctdb_public_ip_list_old **known;
 441         struct ctdb_public_ip_list_old **avail;
 442         int i, numnodes;
 443         uint32_t nodeflags[CTDB_TEST_MAX_NODES];
 444         char *tok, *ns, *t;
 445         struct ctdb_node_map_old *nodemap;
 446         uint32_t *tval_noiptakeover;
 447         uint32_t *tval_noiptakeoverondisabled;
 448         struct public_ip_list *all_ips;
 449
 450         *ctdb = talloc_zero(NULL, struct ctdb_context);
 451
 452         /* Avoid that const */
 453         ns = talloc_strdup(*ctdb, nodestates);
 454
 455         numnodes = 0;
 456         tok = strtok(ns, ",");
 457         while (tok != NULL) {
 458                 nodeflags[numnodes] = (uint32_t) strtol(tok, NULL, 0);
 459                 numnodes++;
 460                 if (numnodes >= CTDB_TEST_MAX_NODES) {
 461                         DEBUG(DEBUG_ERR, ("ERROR: Exceeding CTDB_TEST_MAX_NODES: %d\n", CTDB_TEST_MAX_NODES));
 462                         exit(1);
 463                 }
 464                 tok = strtok(NULL, ",");
 465         }
 466
 467         /* Fake things up... */
 468         (*ctdb)->num_nodes = numnodes;
 469
 470         /* Default to LCP2 */
 471         (*ctdb)->tunable.lcp2_public_ip_assignment = 1;
 472         (*ctdb)->tunable.deterministic_public_ips = 0;
 473         (*ctdb)->tunable.disable_ip_failover = 0;
 474         (*ctdb)->tunable.no_ip_failback = 0;
 475
 476         if ((t = getenv("CTDB_IP_ALGORITHM"))) {
 477                 if (strcmp(t, "lcp2") == 0) {
 478                         (*ctdb)->tunable.lcp2_public_ip_assignment = 1;
 479                 } else if (strcmp(t, "nondet") == 0) {
 480                         (*ctdb)->tunable.lcp2_public_ip_assignment = 0;
 481                 } else if (strcmp(t, "det") == 0) {
 482                         (*ctdb)->tunable.lcp2_public_ip_assignment = 0;
 483                         (*ctdb)->tunable.deterministic_public_ips = 1;
 484                 } else {
 485                         fprintf(stderr, "ERROR: unknown IP algorithm %s\n", t);
 486                         exit(1);
 487                 }
 488         }
 489
 490         tval_noiptakeover = get_tunable_values(*ctdb, numnodes,
 491                                                "CTDB_SET_NoIPTakeover");
 492         tval_noiptakeoverondisabled =
 493                 get_tunable_values(*ctdb, numnodes,
 494                                    "CTDB_SET_NoIPHostOnAllDisabled");
 495
 496         nodemap =  talloc_array(*ctdb, struct ctdb_node_map_old, numnodes);
 497         nodemap->num = numnodes;
 498
 499         if (!read_ips_for_multiple_nodes) {
 500                 read_ctdb_public_ip_info(*ctdb, numnodes,
 501                                          &all_ips, &known, &avail);
 502         }
 503
 504         (*ctdb)->nodes = talloc_array(*ctdb, struct ctdb_node *, numnodes); // FIXME: bogus size, overkill
 505
 506         *ipalloc_state = ipalloc_state_init(*ctdb, *ctdb);
 507
 508         for (i=0; i < numnodes; i++) {
 509                 nodemap->nodes[i].pnn = i;
 510                 nodemap->nodes[i].flags = nodeflags[i];
 511                 /* nodemap->nodes[i].sockaddr is uninitialised */
 512
 513                 if (read_ips_for_multiple_nodes) {
 514                         read_ctdb_public_ip_info(*ctdb, numnodes,
 515                                                  &all_ips, &known, &avail);
 516                 }
 517
 518                 (*ctdb)->nodes[i] = talloc(*ctdb, struct ctdb_node);
 519                 (*ctdb)->nodes[i]->pnn = i;
 520                 (*ctdb)->nodes[i]->flags = nodeflags[i];
 521
 522                 (*ipalloc_state)->available_public_ips[i] = avail[i];
 523                 (*ipalloc_state)->known_public_ips[i] = known[i];
 524         }
 525
 526         set_ipflags_internal(*ipalloc_state, nodemap,
 527                              tval_noiptakeover,
 528                              tval_noiptakeoverondisabled);
 529
 530         (*ipalloc_state)->all_ips = create_merged_ip_list(*ctdb,
 531                                                           *ipalloc_state);
 532
 533         (*ipalloc_state)->force_rebalance_nodes = NULL;
 534 }
 535
 536 /* IP layout is read from stdin. */
 537 static void ctdb_test_lcp2_allocate_unassigned(const char nodestates[])
 538 {
 539         struct ctdb_context *ctdb;
 540         struct ipalloc_state *ipalloc_state;
 541
 542         uint32_t *lcp2_imbalances;
 543         bool *newly_healthy;
 544
 545         ctdb_test_init(nodestates, &ctdb, &ipalloc_state, false);
 546
 547         lcp2_init(ipalloc_state, &lcp2_imbalances, &newly_healthy);
 548
 549         lcp2_allocate_unassigned(ipalloc_state, lcp2_imbalances);
 550
 551         print_ctdb_public_ip_list(ipalloc_state->all_ips);
 552
 553         talloc_free(ctdb);
 554 }
 555
 556 /* IP layout is read from stdin. */
 557 static void ctdb_test_lcp2_failback(const char nodestates[])
 558 {
 559         struct ctdb_context *ctdb;
 560         struct ipalloc_state *ipalloc_state;
 561
 562         uint32_t *lcp2_imbalances;
 563         bool *newly_healthy;
 564
 565         ctdb_test_init(nodestates, &ctdb, &ipalloc_state, false);
 566
 567         lcp2_init(ipalloc_state, &lcp2_imbalances, &newly_healthy);
 568
 569         lcp2_failback(ipalloc_state, lcp2_imbalances, newly_healthy);
 570
 571         print_ctdb_public_ip_list(ipalloc_state->all_ips);
 572
 573         talloc_free(ctdb);
 574 }
 575
 576 /* IP layout is read from stdin. */
 577 static void ctdb_test_lcp2_failback_loop(const char nodestates[])
 578 {
 579         struct ctdb_context *ctdb;
 580         struct ipalloc_state *ipalloc_state;
 581
 582         uint32_t *lcp2_imbalances;
 583         bool *newly_healthy;
 584
 585         ctdb_test_init(nodestates, &ctdb, &ipalloc_state, false);
 586
 587         lcp2_init(ipalloc_state, &lcp2_imbalances, &newly_healthy);
 588
 589         lcp2_failback(ipalloc_state, lcp2_imbalances, newly_healthy);
 590
 591         print_ctdb_public_ip_list(ipalloc_state->all_ips);
 592
 593         talloc_free(ctdb);
 594 }
 595
 596 /* IP layout is read from stdin.  See comment for ctdb_test_init() for
 597  * explanation of read_ips_for_multiple_nodes.
 598  */
 599 static void ctdb_test_ipalloc(const char nodestates[],
 600                               bool read_ips_for_multiple_nodes)
 601 {
 602         struct ctdb_context *ctdb;
 603         struct ipalloc_state *ipalloc_state;
 604
 605         ctdb_test_init(nodestates, &ctdb, &ipalloc_state,
 606                        read_ips_for_multiple_nodes);
 607
 608         ipalloc(ipalloc_state);
 609
 610         print_ctdb_public_ip_list(ipalloc_state->all_ips);
 611
 612         talloc_free(ctdb);
 613 }
 614
 615 static void usage(void)
 616 {
 617         fprintf(stderr, "usage: ctdb_takeover_tests <op>\n");
 618         exit(1);
 619 }
 620
 621 int main(int argc, const char *argv[])
 622 {
 623         DEBUGLEVEL = DEBUG_DEBUG;
 624         if (getenv("CTDB_TEST_LOGLEVEL")) {
 625                 DEBUGLEVEL = atoi(getenv("CTDB_TEST_LOGLEVEL"));
 626         }
 627
 628         if (argc < 2) {
 629                 usage();
 630         }
 631
 632         if (strcmp(argv[1], "ip_list") == 0) {
 633                 ctdb_test_read_ctdb_public_ip_list();
 634         } else if (argc == 3 && strcmp(argv[1], "ip_info") == 0) {
 635                 ctdb_test_read_ctdb_public_ip_info(argv[2]);
 636         } else if (strcmp(argv[1], "ip_distance") == 0) {
 637                 ctdb_test_ip_distance();
 638         } else if (argc == 4 && strcmp(argv[1], "ip_distance_2_sum") == 0) {
 639                 ctdb_test_ip_distance_2_sum(argv[2], atoi(argv[3]));
 640         } else if (argc >= 3 && strcmp(argv[1], "lcp2_imbalance") == 0) {
 641                 ctdb_test_lcp2_imbalance(atoi(argv[2]));
 642         } else if (argc == 3 && strcmp(argv[1], "lcp2_allocate_unassigned") == 0) {
 643                 ctdb_test_lcp2_allocate_unassigned(argv[2]);
 644         } else if (argc == 3 && strcmp(argv[1], "lcp2_failback") == 0) {
 645                 ctdb_test_lcp2_failback(argv[2]);
 646         } else if (argc == 3 && strcmp(argv[1], "lcp2_failback_loop") == 0) {
 647                 ctdb_test_lcp2_failback_loop(argv[2]);
 648         } else if (argc == 3 &&
 649                    strcmp(argv[1], "ipalloc") == 0) {
 650                 ctdb_test_ipalloc(argv[2], false);
 651         } else if (argc == 4 &&
 652                    strcmp(argv[1], "ipalloc") == 0 &&
 653                    strcmp(argv[3], "multi") == 0) {
 654                 ctdb_test_ipalloc(argv[2], true);
 655         } else {
 656                 usage();
 657         }
 658
 659         return 0;
 660 }