ovsdb/ovsdb-server.c

   1 /* Copyright (c) 2009, 2010 Nicira Networks
   2  *
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15
  16 #include <config.h>
  17
  18 #include "ovsdb.h"
  19
  20 #include <errno.h>
  21 #include <getopt.h>
  22 #include <signal.h>
  23 #include <unistd.h>
  24
  25 #include "column.h"
  26 #include "command-line.h"
  27 #include "daemon.h"
  28 #include "file.h"
  29 #include "json.h"
  30 #include "jsonrpc.h"
  31 #include "jsonrpc-server.h"
  32 #include "leak-checker.h"
  33 #include "list.h"
  34 #include "ovsdb-data.h"
  35 #include "ovsdb-types.h"
  36 #include "ovsdb-error.h"
  37 #include "poll-loop.h"
  38 #include "process.h"
  39 #include "row.h"
  40 #include "stream-ssl.h"
  41 #include "stream.h"
  42 #include "stress.h"
  43 #include "svec.h"
  44 #include "table.h"
  45 #include "timeval.h"
  46 #include "transaction.h"
  47 #include "trigger.h"
  48 #include "util.h"
  49 #include "unixctl.h"
  50 #include "vlog.h"
  51
  52 VLOG_DEFINE_THIS_MODULE(ovsdb_server);
  53
  54 #if HAVE_OPENSSL
  55 /* SSL configuration. */
  56 static char *private_key_file;
  57 static char *certificate_file;
  58 static char *ca_cert_file;
  59 static bool bootstrap_ca_cert;
  60 #endif
  61
  62 static unixctl_cb_func ovsdb_server_exit;
  63 static unixctl_cb_func ovsdb_server_compact;
  64 static unixctl_cb_func ovsdb_server_reconnect;
  65
  66 static void parse_options(int argc, char *argv[], char **file_namep,
  67                           struct shash *remotes, char **unixctl_pathp,
  68                           char **run_command);
  69 static void usage(void) NO_RETURN;
  70
  71 static void reconfigure_from_db(struct ovsdb_jsonrpc_server *jsonrpc,
  72                                 const struct ovsdb *db, struct shash *remotes);
  73
  74 static void update_remote_status(const struct ovsdb_jsonrpc_server *jsonrpc,
  75                                  const struct shash *remotes,
  76                                  struct ovsdb *db);
  77
  78 int
  79 main(int argc, char *argv[])
  80 {
  81     char *unixctl_path = NULL;
  82     char *run_command = NULL;
  83     struct unixctl_server *unixctl;
  84     struct ovsdb_jsonrpc_server *jsonrpc;
  85     struct shash remotes;
  86     struct ovsdb_error *error;
  87     struct ovsdb_file *file;
  88     struct ovsdb *db;
  89     struct process *run_process;
  90     char *file_name;
  91     bool exiting;
  92     int retval;
  93     long long int status_timer = LLONG_MIN;
  94
  95     proctitle_init(argc, argv);
  96     set_program_name(argv[0]);
  97     stress_init_command();
  98     signal(SIGPIPE, SIG_IGN);
  99     process_init();
 100
 101     parse_options(argc, argv, &file_name, &remotes, &unixctl_path,
 102                   &run_command);
 103
 104     die_if_already_running();
 105     daemonize_start();
 106
 107     error = ovsdb_file_open(file_name, false, &db, &file);
 108     if (error) {
 109         ovs_fatal(0, "%s", ovsdb_error_to_string(error));
 110     }
 111
 112     jsonrpc = ovsdb_jsonrpc_server_create(db);
 113     reconfigure_from_db(jsonrpc, db, &remotes);
 114
 115     retval = unixctl_server_create(unixctl_path, &unixctl);
 116     if (retval) {
 117         exit(EXIT_FAILURE);
 118     }
 119
 120     if (run_command) {
 121         char *run_argv[4];
 122
 123         run_argv[0] = "/bin/sh";
 124         run_argv[1] = "-c";
 125         run_argv[2] = run_command;
 126         run_argv[3] = NULL;
 127
 128         retval = process_start(run_argv, NULL, 0, NULL, 0, &run_process);
 129         if (retval) {
 130             ovs_fatal(retval, "%s: process failed to start", run_command);
 131         }
 132     } else {
 133         run_process = NULL;
 134     }
 135
 136     daemonize_complete();
 137
 138     unixctl_command_register("exit", ovsdb_server_exit, &exiting);
 139     unixctl_command_register("ovsdb-server/compact", ovsdb_server_compact,
 140                              file);
 141     unixctl_command_register("ovsdb-server/reconnect", ovsdb_server_reconnect,
 142                              jsonrpc);
 143
 144     exiting = false;
 145     while (!exiting) {
 146         reconfigure_from_db(jsonrpc, db, &remotes);
 147         ovsdb_jsonrpc_server_run(jsonrpc);
 148         unixctl_server_run(unixctl);
 149         ovsdb_trigger_run(db, time_msec());
 150         if (run_process && process_exited(run_process)) {
 151             exiting = true;
 152         }
 153
 154         /* update Manager status(es) every 5 seconds */
 155         if (time_msec() >= status_timer) {
 156             status_timer = time_msec() + 5000;
 157             update_remote_status(jsonrpc, &remotes, db);
 158         }
 159
 160         ovsdb_jsonrpc_server_wait(jsonrpc);
 161         unixctl_server_wait(unixctl);
 162         ovsdb_trigger_wait(db, time_msec());
 163         if (run_process) {
 164             process_wait(run_process);
 165         }
 166         if (exiting) {
 167             poll_immediate_wake();
 168         }
 169         poll_timer_wait_until(status_timer);
 170         poll_block();
 171     }
 172     ovsdb_jsonrpc_server_destroy(jsonrpc);
 173     ovsdb_destroy(db);
 174     shash_destroy(&remotes);
 175     unixctl_server_destroy(unixctl);
 176
 177     if (run_process && process_exited(run_process)) {
 178         int status = process_status(run_process);
 179         if (status) {
 180             ovs_fatal(0, "%s: child exited, %s",
 181                       run_command, process_status_msg(status));
 182         }
 183     }
 184
 185     return 0;
 186 }
 187
 188 static void
 189 parse_db_column(const struct ovsdb *db,
 190                 const char *name_,
 191                 const struct ovsdb_table **tablep,
 192                 const struct ovsdb_column **columnp)
 193 {
 194     char *name, *table_name, *column_name;
 195     const struct ovsdb_column *column;
 196     const struct ovsdb_table *table;
 197     char *save_ptr = NULL;
 198
 199     name = xstrdup(name_);
 200     strtok_r(name, ":", &save_ptr); /* "db:" */
 201     table_name = strtok_r(NULL, ",", &save_ptr);
 202     column_name = strtok_r(NULL, ",", &save_ptr);
 203     if (!table_name || !column_name) {
 204         ovs_fatal(0, "\"%s\": invalid syntax", name_);
 205     }
 206
 207     table = ovsdb_get_table(db, table_name);
 208     if (!table) {
 209         ovs_fatal(0, "\"%s\": no table named %s", name_, table_name);
 210     }
 211
 212     column = ovsdb_table_schema_get_column(table->schema, column_name);
 213     if (!column) {
 214         ovs_fatal(0, "\"%s\": table \"%s\" has no column \"%s\"",
 215                   name_, table_name, column_name);
 216     }
 217     free(name);
 218
 219     *columnp = column;
 220     *tablep = table;
 221 }
 222
 223 static void
 224 parse_db_string_column(const struct ovsdb *db,
 225                        const char *name,
 226                        const struct ovsdb_table **tablep,
 227                        const struct ovsdb_column **columnp)
 228 {
 229     const struct ovsdb_column *column;
 230     const struct ovsdb_table *table;
 231
 232     parse_db_column(db, name, &table, &column);
 233
 234     if (column->type.key.type != OVSDB_TYPE_STRING
 235         || column->type.value.type != OVSDB_TYPE_VOID) {
 236         ovs_fatal(0, "\"%s\": table \"%s\" column \"%s\" is "
 237                   "not string or set of strings",
 238                   name, table->schema->name, column->name);
 239     }
 240
 241     *columnp = column;
 242     *tablep = table;
 243 }
 244
 245 #if HAVE_OPENSSL
 246 static const char *
 247 query_db_string(const struct ovsdb *db, const char *name)
 248 {
 249     if (!name || strncmp(name, "db:", 3)) {
 250         return name;
 251     } else {
 252         const struct ovsdb_column *column;
 253         const struct ovsdb_table *table;
 254         const struct ovsdb_row *row;
 255
 256         parse_db_string_column(db, name, &table, &column);
 257
 258         HMAP_FOR_EACH (row, hmap_node, &table->rows) {
 259             const struct ovsdb_datum *datum;
 260             size_t i;
 261
 262             datum = &row->fields[column->index];
 263             for (i = 0; i < datum->n; i++) {
 264                 if (datum->keys[i].string[0]) {
 265                     return datum->keys[i].string;
 266                 }
 267             }
 268         }
 269         return NULL;
 270     }
 271 }
 272 #endif /* HAVE_OPENSSL */
 273
 274 static struct ovsdb_jsonrpc_options *
 275 add_remote(struct shash *remotes, const char *target)
 276 {
 277     struct ovsdb_jsonrpc_options *options;
 278
 279     options = shash_find_data(remotes, target);
 280     if (!options) {
 281         options = ovsdb_jsonrpc_default_options();
 282         shash_add(remotes, target, options);
 283     }
 284
 285     return options;
 286 }
 287
 288 static struct ovsdb_datum *
 289 get_datum(struct ovsdb_row *row, const char *column_name,
 290           const enum ovsdb_atomic_type key_type,
 291           const enum ovsdb_atomic_type value_type,
 292           const size_t n_max)
 293 {
 294     static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
 295     const struct ovsdb_table_schema *schema = row->table->schema;
 296     const struct ovsdb_column *column;
 297
 298     column = ovsdb_table_schema_get_column(schema, column_name);
 299     if (!column) {
 300         VLOG_DBG_RL(&rl, "Table `%s' has no `%s' column",
 301                     schema->name, column_name);
 302         return NULL;
 303     }
 304
 305     if (column->type.key.type != key_type
 306         || column->type.value.type != value_type
 307         || column->type.n_max != n_max) {
 308         if (!VLOG_DROP_DBG(&rl)) {
 309             char *type_name = ovsdb_type_to_english(&column->type);
 310             VLOG_DBG("Table `%s' column `%s' has type %s, not expected "
 311                      "key type %s, value type %s, max elements %zd.",
 312                      schema->name, column_name, type_name,
 313                      ovsdb_atomic_type_to_string(key_type),
 314                      ovsdb_atomic_type_to_string(value_type),
 315                      n_max);
 316             free(type_name);
 317         }
 318         return NULL;
 319     }
 320
 321     return &row->fields[column->index];
 322 }
 323
 324 static const union ovsdb_atom *
 325 read_column(const struct ovsdb_row *row, const char *column_name,
 326             enum ovsdb_atomic_type type)
 327 {
 328     const struct ovsdb_datum *datum;
 329
 330     datum = get_datum((struct ovsdb_row *) row, column_name, type, OVSDB_TYPE_VOID, 1);
 331     return datum && datum->n ? datum->keys : NULL;
 332 }
 333
 334 static bool
 335 read_integer_column(const struct ovsdb_row *row, const char *column_name,
 336                     long long int *integerp)
 337 {
 338     const union ovsdb_atom *atom;
 339
 340     atom = read_column(row, column_name, OVSDB_TYPE_INTEGER);
 341     *integerp = atom ? atom->integer : 0;
 342     return atom != NULL;
 343 }
 344
 345 static bool
 346 read_string_column(const struct ovsdb_row *row, const char *column_name,
 347                    const char **stringp)
 348 {
 349     const union ovsdb_atom *atom;
 350
 351     atom = read_column(row, column_name, OVSDB_TYPE_STRING);
 352     *stringp = atom ? atom->string : 0;
 353     return atom != NULL;
 354 }
 355
 356 static void
 357 write_bool_column(struct ovsdb_row *row, const char *column_name, bool value)
 358 {
 359     struct ovsdb_datum *datum = get_datum(row, column_name, OVSDB_TYPE_BOOLEAN,
 360                                           OVSDB_TYPE_VOID, 1);
 361
 362     if (!datum) {
 363         return;
 364     }
 365     datum->keys[0].boolean = value;
 366 }
 367
 368 static void
 369 write_string_string_column(struct ovsdb_row *row, const char *column_name,
 370                            char **keys, char **values, size_t n)
 371 {
 372     const struct ovsdb_column *column;
 373     struct ovsdb_datum *datum;
 374     size_t i;
 375
 376     column = ovsdb_table_schema_get_column(row->table->schema, column_name);
 377     datum = get_datum(row, column_name, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING,
 378                       UINT_MAX);
 379     if (!datum) {
 380         return;
 381     }
 382
 383     /* Free existing data. */
 384     ovsdb_datum_destroy(datum, &column->type);
 385
 386     /* Allocate space for new values. */
 387     datum->n = n;
 388     datum->keys = xmalloc(n * sizeof *datum->keys);
 389     datum->values = xmalloc(n * sizeof *datum->values);
 390
 391     for (i = 0; i < n; ++i) {
 392         datum->keys[i].string = keys[i];
 393         datum->values[i].string = values[i];
 394     }
 395
 396     /* Sort and check constraints. */
 397     ovsdb_datum_sort_assert(datum, column->type.key.type);
 398 }
 399
 400 /* Adds a remote and options to 'remotes', based on the Manager table row in
 401  * 'row'. */
 402 static void
 403 add_manager_options(struct shash *remotes, const struct ovsdb_row *row)
 404 {
 405     static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
 406     struct ovsdb_jsonrpc_options *options;
 407     long long int max_backoff, probe_interval;
 408     const char *target;
 409
 410     if (!read_string_column(row, "target", &target) || !target) {
 411         VLOG_INFO_RL(&rl, "Table `%s' has missing or invalid `target' column",
 412                      row->table->schema->name);
 413         return;
 414     }
 415
 416     options = add_remote(remotes, target);
 417     if (read_integer_column(row, "max_backoff", &max_backoff)) {
 418         options->max_backoff = max_backoff;
 419     }
 420     if (read_integer_column(row, "inactivity_probe", &probe_interval)) {
 421         options->probe_interval = probe_interval;
 422     }
 423 }
 424
 425 static void
 426 query_db_remotes(const char *name, const struct ovsdb *db,
 427                  struct shash *remotes)
 428 {
 429     const struct ovsdb_column *column;
 430     const struct ovsdb_table *table;
 431     const struct ovsdb_row *row;
 432
 433     parse_db_column(db, name, &table, &column);
 434
 435     if (column->type.key.type == OVSDB_TYPE_STRING
 436         && column->type.value.type == OVSDB_TYPE_VOID) {
 437         HMAP_FOR_EACH (row, hmap_node, &table->rows) {
 438             const struct ovsdb_datum *datum;
 439             size_t i;
 440
 441             datum = &row->fields[column->index];
 442             for (i = 0; i < datum->n; i++) {
 443                 add_remote(remotes, datum->keys[i].string);
 444             }
 445         }
 446     } else if (column->type.key.type == OVSDB_TYPE_UUID
 447                && column->type.key.u.uuid.refTable
 448                && column->type.value.type == OVSDB_TYPE_VOID) {
 449         const struct ovsdb_table *ref_table = column->type.key.u.uuid.refTable;
 450         HMAP_FOR_EACH (row, hmap_node, &table->rows) {
 451             const struct ovsdb_datum *datum;
 452             size_t i;
 453
 454             datum = &row->fields[column->index];
 455             for (i = 0; i < datum->n; i++) {
 456                 const struct ovsdb_row *ref_row;
 457
 458                 ref_row = ovsdb_table_get_row(ref_table, &datum->keys[i].uuid);
 459                 if (ref_row) {
 460                     add_manager_options(remotes, ref_row);
 461                 }
 462             }
 463         }
 464     }
 465 }
 466
 467 static void
 468 update_remote_row(const struct ovsdb_row *row, struct ovsdb_txn *txn,
 469                   const struct shash *statuses)
 470 {
 471     struct ovsdb_row *rw_row;
 472     const char *target;
 473     const struct ovsdb_jsonrpc_remote_status *status;
 474     char *keys[3], *values[3];
 475     size_t n = 0;
 476
 477     /* Get the "target" (protocol/host/port) spec. */
 478     if (!read_string_column(row, "target", &target)) {
 479         /* Bad remote spec or incorrect schema. */
 480         return;
 481     }
 482
 483     /* Prepare to modify this row. */
 484     rw_row = ovsdb_txn_row_modify(txn, row);
 485
 486     /* Find status information for this target. */
 487     status = shash_find_data(statuses, target);
 488     if (!status) {
 489         /* Should never happen, but just in case... */
 490         return;
 491     }
 492
 493     /* Update status information columns. */
 494
 495     write_bool_column(rw_row, "is_connected",
 496                       status->is_connected);
 497
 498     keys[n] = xstrdup("state");
 499     values[n++] = xstrdup(status->state);
 500     keys[n] = xstrdup("time_in_state");
 501     values[n++] = xasprintf("%u", status->state_elapsed);
 502     if (status->last_error) {
 503         keys[n] = xstrdup("last_error");
 504         values[n++] =
 505             xstrdup(ovs_retval_to_string(status->last_error));
 506     }
 507     write_string_string_column(rw_row, "status", keys, values, n);
 508 }
 509
 510 static void
 511 update_remote_rows(const struct ovsdb *db, struct ovsdb_txn *txn,
 512                    const char *remote_name, const struct shash *statuses)
 513 {
 514     const struct ovsdb_table *table, *ref_table;
 515     const struct ovsdb_column *column;
 516     const struct ovsdb_row *row;
 517
 518     if (strncmp("db:", remote_name, 3)) {
 519         return;
 520     }
 521
 522     parse_db_column(db, remote_name, &table, &column);
 523
 524     if (column->type.key.type != OVSDB_TYPE_UUID
 525         || !column->type.key.u.uuid.refTable
 526         || column->type.value.type != OVSDB_TYPE_VOID) {
 527         return;
 528     }
 529
 530     ref_table = column->type.key.u.uuid.refTable;
 531
 532     HMAP_FOR_EACH (row, hmap_node, &table->rows) {
 533         const struct ovsdb_datum *datum;
 534         size_t i;
 535
 536         datum = &row->fields[column->index];
 537         for (i = 0; i < datum->n; i++) {
 538             const struct ovsdb_row *ref_row;
 539
 540             ref_row = ovsdb_table_get_row(ref_table, &datum->keys[i].uuid);
 541             if (ref_row) {
 542                 update_remote_row(ref_row, txn, statuses);
 543             }
 544         }
 545     }
 546 }
 547
 548 static void
 549 update_remote_status(const struct ovsdb_jsonrpc_server *jsonrpc,
 550                      const struct shash *remotes, struct ovsdb *db)
 551 {
 552     static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
 553     struct shash_node *remote;
 554     struct shash statuses;
 555     struct ovsdb_txn *txn;
 556     const bool durable_txn = false;
 557     struct ovsdb_error *error;
 558
 559     /* Get status of current connections. */
 560     ovsdb_jsonrpc_server_get_remote_status(jsonrpc, &statuses);
 561
 562     txn = ovsdb_txn_create(db);
 563
 564     /* Iterate over --remote arguments given on command line. */
 565     SHASH_FOR_EACH (remote, remotes) {
 566         update_remote_rows(db, txn, remote->name, &statuses);
 567     }
 568
 569     error = ovsdb_txn_commit(txn, durable_txn);
 570     if (error) {
 571         VLOG_ERR_RL(&rl, "Failed to update remote status: %s",
 572                     ovsdb_error_to_string(error));
 573     }
 574
 575     shash_destroy_free_data(&statuses);
 576 }
 577
 578 /* Reconfigures ovsdb-server based on information in the database. */
 579 static void
 580 reconfigure_from_db(struct ovsdb_jsonrpc_server *jsonrpc,
 581                     const struct ovsdb *db, struct shash *remotes)
 582 {
 583     struct shash resolved_remotes;
 584     struct shash_node *node;
 585
 586     /* Configure remotes. */
 587     shash_init(&resolved_remotes);
 588     SHASH_FOR_EACH (node, remotes) {
 589         const char *name = node->name;
 590
 591         if (!strncmp(name, "db:", 3)) {
 592             query_db_remotes(name, db, &resolved_remotes);
 593         } else {
 594             add_remote(&resolved_remotes, name);
 595         }
 596     }
 597     ovsdb_jsonrpc_server_set_remotes(jsonrpc, &resolved_remotes);
 598     shash_destroy(&resolved_remotes);
 599
 600 #if HAVE_OPENSSL
 601     /* Configure SSL. */
 602     stream_ssl_set_key_and_cert(query_db_string(db, private_key_file),
 603                                 query_db_string(db, certificate_file));
 604     stream_ssl_set_ca_cert_file(query_db_string(db, ca_cert_file),
 605                                 bootstrap_ca_cert);
 606 #endif
 607 }
 608
 609 static void
 610 ovsdb_server_exit(struct unixctl_conn *conn, const char *args OVS_UNUSED,
 611                   void *exiting_)
 612 {
 613     bool *exiting = exiting_;
 614     *exiting = true;
 615     unixctl_command_reply(conn, 200, NULL);
 616 }
 617
 618 static void
 619 ovsdb_server_compact(struct unixctl_conn *conn, const char *args OVS_UNUSED,
 620                      void *file_)
 621 {
 622     struct ovsdb_file *file = file_;
 623     struct ovsdb_error *error;
 624
 625     VLOG_INFO("compacting database by user request");
 626     error = ovsdb_file_compact(file);
 627     if (!error) {
 628         unixctl_command_reply(conn, 200, NULL);
 629     } else {
 630         char *s = ovsdb_error_to_string(error);
 631         ovsdb_error_destroy(error);
 632         unixctl_command_reply(conn, 503, s);
 633         free(s);
 634     }
 635 }
 636
 637 /* "ovsdb-server/reconnect": makes ovsdb-server drop all of its JSON-RPC
 638  * connections and reconnect. */
 639 static void
 640 ovsdb_server_reconnect(struct unixctl_conn *conn, const char *args OVS_UNUSED,
 641                        void *jsonrpc_)
 642 {
 643     struct ovsdb_jsonrpc_server *jsonrpc = jsonrpc_;
 644
 645     ovsdb_jsonrpc_server_reconnect(jsonrpc);
 646     unixctl_command_reply(conn, 200, NULL);
 647 }
 648
 649 static void
 650 parse_options(int argc, char *argv[], char **file_namep,
 651               struct shash *remotes, char **unixctl_pathp,
 652               char **run_command)
 653 {
 654     enum {
 655         OPT_DUMMY = UCHAR_MAX + 1,
 656         OPT_REMOTE,
 657         OPT_UNIXCTL,
 658         OPT_RUN,
 659         OPT_BOOTSTRAP_CA_CERT,
 660         VLOG_OPTION_ENUMS,
 661         LEAK_CHECKER_OPTION_ENUMS
 662     };
 663     static struct option long_options[] = {
 664         {"remote",      required_argument, 0, OPT_REMOTE},
 665         {"unixctl",     required_argument, 0, OPT_UNIXCTL},
 666         {"run",         required_argument, 0, OPT_RUN},
 667         {"help",        no_argument, 0, 'h'},
 668         {"version",     no_argument, 0, 'V'},
 669         DAEMON_LONG_OPTIONS,
 670         VLOG_LONG_OPTIONS,
 671         LEAK_CHECKER_LONG_OPTIONS,
 672 #ifdef HAVE_OPENSSL
 673         {"bootstrap-ca-cert", required_argument, 0, OPT_BOOTSTRAP_CA_CERT},
 674         {"private-key", required_argument, 0, 'p'},
 675         {"certificate", required_argument, 0, 'c'},
 676         {"ca-cert",     required_argument, 0, 'C'},
 677 #endif
 678         {0, 0, 0, 0},
 679     };
 680     char *short_options = long_options_to_short_options(long_options);
 681
 682     shash_init(remotes);
 683     for (;;) {
 684         int c;
 685
 686         c = getopt_long(argc, argv, short_options, long_options, NULL);
 687         if (c == -1) {
 688             break;
 689         }
 690
 691         switch (c) {
 692         case OPT_REMOTE:
 693             shash_add_once(remotes, optarg, NULL);
 694             break;
 695
 696         case OPT_UNIXCTL:
 697             *unixctl_pathp = optarg;
 698             break;
 699
 700         case OPT_RUN:
 701             *run_command = optarg;
 702             break;
 703
 704         case 'h':
 705             usage();
 706
 707         case 'V':
 708             OVS_PRINT_VERSION(0, 0);
 709             exit(EXIT_SUCCESS);
 710
 711         VLOG_OPTION_HANDLERS
 712         DAEMON_OPTION_HANDLERS
 713         LEAK_CHECKER_OPTION_HANDLERS
 714
 715 #ifdef HAVE_OPENSSL
 716         case 'p':
 717             private_key_file = optarg;
 718             break;
 719
 720         case 'c':
 721             certificate_file = optarg;
 722             break;
 723
 724         case 'C':
 725             ca_cert_file = optarg;
 726             bootstrap_ca_cert = false;
 727             break;
 728
 729         case OPT_BOOTSTRAP_CA_CERT:
 730             ca_cert_file = optarg;
 731             bootstrap_ca_cert = true;
 732             break;
 733 #endif
 734
 735         case '?':
 736             exit(EXIT_FAILURE);
 737
 738         default:
 739             abort();
 740         }
 741     }
 742     free(short_options);
 743
 744     argc -= optind;
 745     argv += optind;
 746
 747     if (argc > 1) {
 748         ovs_fatal(0, "database file is only non-option argument; "
 749                 "use --help for usage");
 750     } else if (argc < 1) {
 751         ovs_fatal(0, "missing database file argument; use --help for usage");
 752     }
 753
 754     *file_namep = argv[0];
 755 }
 756
 757 static void
 758 usage(void)
 759 {
 760     printf("%s: Open vSwitch database server\n"
 761            "usage: %s [OPTIONS] DATABASE\n"
 762            "where DATABASE is a database file in ovsdb format.\n",
 763            program_name, program_name);
 764     printf("\nJSON-RPC options (may be specified any number of times):\n"
 765            "  --remote=REMOTE         connect or listen to REMOTE\n");
 766     stream_usage("JSON-RPC", true, true, true);
 767     daemon_usage();
 768     vlog_usage();
 769     printf("\nOther options:\n"
 770            "  --run COMMAND           run COMMAND as subprocess then exit\n"
 771            "  --unixctl=SOCKET        override default control socket name\n"
 772            "  -h, --help              display this help message\n"
 773            "  -V, --version           display version information\n");
 774     leak_checker_usage();
 775     exit(EXIT_SUCCESS);
 776 }