1 /* Copyright (c) 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
25 #include "command-line.h"
29 #include "dynamic-string.h"
34 #include "jsonrpc-server.h"
38 #include "ovsdb-data.h"
39 #include "ovsdb-types.h"
40 #include "ovsdb-error.h"
41 #include "poll-loop.h"
46 #include "stream-ssl.h"
52 #include "transaction.h"
58 VLOG_DEFINE_THIS_MODULE(ovsdb_server);
61 /* Initialized in main(). */
63 struct ovsdb_file *file;
66 /* Only used by update_remote_status(). */
67 struct ovsdb_txn *txn;
70 /* SSL configuration. */
71 static char *private_key_file;
72 static char *certificate_file;
73 static char *ca_cert_file;
74 static bool bootstrap_ca_cert;
76 static unixctl_cb_func ovsdb_server_exit;
77 static unixctl_cb_func ovsdb_server_compact;
78 static unixctl_cb_func ovsdb_server_reconnect;
80 struct add_remote_aux {
82 struct shash *all_dbs;
85 static unixctl_cb_func ovsdb_server_add_remote;
87 struct remove_remote_aux {
91 static unixctl_cb_func ovsdb_server_remove_remote;
92 static unixctl_cb_func ovsdb_server_list_remotes;
94 static void open_db(struct ovsdb_jsonrpc_server *jsonrpc,
95 struct db *db, struct shash *all_dbs);
97 static void parse_options(int *argc, char **argvp[],
98 struct sset *remotes, char **unixctl_pathp,
100 static void usage(void) NO_RETURN;
102 static void reconfigure_from_db(struct ovsdb_jsonrpc_server *jsonrpc,
103 const struct shash *all_dbs,
104 struct sset *remotes);
106 static void update_remote_status(const struct ovsdb_jsonrpc_server *jsonrpc,
107 const struct sset *remotes,
108 struct shash *all_dbs);
110 static void save_config(FILE *config_file, const struct sset *);
111 static void load_config(FILE *config_file, struct sset *);
114 main(int argc, char *argv[])
116 char *unixctl_path = NULL;
117 char *run_command = NULL;
118 struct unixctl_server *unixctl;
119 struct ovsdb_jsonrpc_server *jsonrpc;
121 struct process *run_process;
124 long long int status_timer = LLONG_MIN;
125 struct add_remote_aux add_remote_aux;
126 struct remove_remote_aux remove_remote_aux;
127 FILE *config_tmpfile;
129 struct shash all_dbs;
130 struct shash_node *node;
133 proctitle_init(argc, argv);
134 set_program_name(argv[0]);
135 stress_init_command();
136 signal(SIGPIPE, SIG_IGN);
139 parse_options(&argc, &argv, &remotes, &unixctl_path, &run_command);
141 /* Create and initialize 'config_tmpfile' as a temporary file to hold
142 * ovsdb-server's most basic configuration, and then save our initial
143 * configuration to it. When --monitor is used, this preserves the effects
144 * of ovs-appctl commands such as ovsdb-server/add-remote (which saves the
145 * new configuration) across crashes. */
146 config_tmpfile = tmpfile();
147 if (!config_tmpfile) {
148 ovs_fatal(errno, "failed to create temporary file");
150 save_config(config_tmpfile, &remotes);
154 /* Load the saved config. */
155 load_config(config_tmpfile, &remotes);
157 shash_init(&all_dbs);
158 jsonrpc = ovsdb_jsonrpc_server_create();
161 for (i = 0; i < argc; i++) {
162 struct db *db = xzalloc(sizeof *db);
163 db->filename = argv[i];
164 open_db(jsonrpc, db, &all_dbs);
167 struct db *db = xzalloc(sizeof *db);
168 db->filename = xasprintf("%s/conf.db", ovs_dbdir());
169 open_db(jsonrpc, db, &all_dbs);
172 reconfigure_from_db(jsonrpc, &all_dbs, &remotes);
174 retval = unixctl_server_create(unixctl_path, &unixctl);
182 run_argv[0] = "/bin/sh";
184 run_argv[2] = run_command;
187 retval = process_start(run_argv, &run_process);
189 ovs_fatal(retval, "%s: process failed to start", run_command);
195 daemonize_complete();
198 /* ovsdb-server is usually a long-running process, in which case it
199 * makes plenty of sense to log the version, but --run makes
200 * ovsdb-server more like a command-line tool, so skip it. */
201 VLOG_INFO("%s (Open vSwitch) %s", program_name, VERSION);
204 unixctl_command_register("exit", "", 0, 0, ovsdb_server_exit, &exiting);
205 unixctl_command_register("ovsdb-server/compact", "", 0, 1,
206 ovsdb_server_compact, &all_dbs);
207 unixctl_command_register("ovsdb-server/reconnect", "", 0, 0,
208 ovsdb_server_reconnect, jsonrpc);
210 add_remote_aux.remotes = &remotes;
211 add_remote_aux.all_dbs = &all_dbs;
212 add_remote_aux.config_tmpfile = config_tmpfile;
213 unixctl_command_register("ovsdb-server/add-remote", "REMOTE", 1, 1,
214 ovsdb_server_add_remote, &add_remote_aux);
216 remove_remote_aux.remotes = &remotes;
217 remove_remote_aux.config_tmpfile = config_tmpfile;
218 unixctl_command_register("ovsdb-server/remove-remote", "REMOTE", 1, 1,
219 ovsdb_server_remove_remote, &remove_remote_aux);
221 unixctl_command_register("ovsdb-server/list-remotes", "", 0, 0,
222 ovsdb_server_list_remotes, &remotes);
227 if (memory_should_report()) {
231 ovsdb_jsonrpc_server_get_memory_usage(jsonrpc, &usage);
232 SHASH_FOR_EACH(node, &all_dbs) {
233 struct db *db = node->data;
234 ovsdb_get_memory_usage(db->db, &usage);
236 memory_report(&usage);
237 simap_destroy(&usage);
240 /* Run unixctl_server_run() before reconfigure_from_db() because
241 * ovsdb-server/add-remote and ovsdb-server/remove-remote can change
242 * the set of remotes that reconfigure_from_db() uses. */
243 unixctl_server_run(unixctl);
245 reconfigure_from_db(jsonrpc, &all_dbs, &remotes);
246 ovsdb_jsonrpc_server_run(jsonrpc);
248 SHASH_FOR_EACH(node, &all_dbs) {
249 struct db *db = node->data;
250 ovsdb_trigger_run(db->db, time_msec());
254 if (process_exited(run_process)) {
259 /* update Manager status(es) every 5 seconds */
260 if (time_msec() >= status_timer) {
261 status_timer = time_msec() + 5000;
262 update_remote_status(jsonrpc, &remotes, &all_dbs);
266 ovsdb_jsonrpc_server_wait(jsonrpc);
267 unixctl_server_wait(unixctl);
268 SHASH_FOR_EACH(node, &all_dbs) {
269 struct db *db = node->data;
270 ovsdb_trigger_wait(db->db, time_msec());
273 process_wait(run_process);
276 poll_immediate_wake();
278 poll_timer_wait_until(status_timer);
281 ovsdb_jsonrpc_server_destroy(jsonrpc);
282 SHASH_FOR_EACH(node, &all_dbs) {
283 struct db *db = node->data;
284 ovsdb_destroy(db->db);
286 sset_destroy(&remotes);
287 unixctl_server_destroy(unixctl);
289 if (run_process && process_exited(run_process)) {
290 int status = process_status(run_process);
292 ovs_fatal(0, "%s: child exited, %s",
293 run_command, process_status_msg(status));
301 open_db(struct ovsdb_jsonrpc_server *jsonrpc, struct db *db,
302 struct shash *all_dbs)
304 struct ovsdb_error *error;
306 error = ovsdb_file_open(db->filename, false,
309 ovs_fatal(0, "%s", ovsdb_error_to_string(error));
312 if (!ovsdb_jsonrpc_server_add_db(jsonrpc, db->db)) {
313 ovs_fatal(0, "%s: duplicate database name",
314 db->db->schema->name);
317 shash_add(all_dbs, db->filename, db);
320 static const struct db *
321 find_db(const struct shash *all_dbs, const char *db_name)
323 struct shash_node *node;
325 SHASH_FOR_EACH(node, all_dbs) {
326 struct db *db = node->data;
327 if (!strcmp(db->db->schema->name, db_name)) {
335 static char * WARN_UNUSED_RESULT
336 parse_db_column__(const struct shash *all_dbs,
337 const char *name_, char *name,
338 const struct db **dbp,
339 const struct ovsdb_table **tablep,
340 const struct ovsdb_column **columnp)
342 const char *db_name, *table_name, *column_name;
343 const struct ovsdb_column *column;
344 const struct ovsdb_table *table;
345 const char *tokens[3];
346 char *save_ptr = NULL;
353 strtok_r(name, ":", &save_ptr); /* "db:" */
354 tokens[0] = strtok_r(NULL, ",", &save_ptr);
355 tokens[1] = strtok_r(NULL, ",", &save_ptr);
356 tokens[2] = strtok_r(NULL, ",", &save_ptr);
357 if (!tokens[0] || !tokens[1] || !tokens[2]) {
358 return xasprintf("\"%s\": invalid syntax", name_);
362 table_name = tokens[1];
363 column_name = tokens[2];
365 db = find_db(all_dbs, tokens[0]);
367 return xasprintf("\"%s\": no database named %s", name_, db_name);
370 table = ovsdb_get_table(db->db, table_name);
372 return xasprintf("\"%s\": no table named %s", name_, table_name);
375 column = ovsdb_table_schema_get_column(table->schema, column_name);
377 return xasprintf("\"%s\": table \"%s\" has no column \"%s\"",
378 name_, table_name, column_name);
387 /* Returns NULL if successful, otherwise a malloc()'d string describing the
389 static char * WARN_UNUSED_RESULT
390 parse_db_column(const struct shash *all_dbs,
392 const struct db **dbp,
393 const struct ovsdb_table **tablep,
394 const struct ovsdb_column **columnp)
396 char *name = xstrdup(name_);
397 char *retval = parse_db_column__(all_dbs, name_, name,
398 dbp, tablep, columnp);
403 /* Returns NULL if successful, otherwise a malloc()'d string describing the
405 static char * WARN_UNUSED_RESULT
406 parse_db_string_column(const struct shash *all_dbs,
408 const struct db **dbp,
409 const struct ovsdb_table **tablep,
410 const struct ovsdb_column **columnp)
414 retval = parse_db_column(all_dbs, name, dbp, tablep, columnp);
419 if ((*columnp)->type.key.type != OVSDB_TYPE_STRING
420 || (*columnp)->type.value.type != OVSDB_TYPE_VOID) {
421 return xasprintf("\"%s\": table \"%s\" column \"%s\" is "
422 "not string or set of strings",
423 name, (*tablep)->schema->name, (*columnp)->name);
429 static OVS_UNUSED const char *
430 query_db_string(const struct shash *all_dbs, const char *name)
432 if (!name || strncmp(name, "db:", 3)) {
435 const struct ovsdb_column *column;
436 const struct ovsdb_table *table;
437 const struct ovsdb_row *row;
441 retval = parse_db_string_column(all_dbs, name,
442 &db, &table, &column);
444 ovs_fatal(0, "%s", retval);
447 HMAP_FOR_EACH (row, hmap_node, &table->rows) {
448 const struct ovsdb_datum *datum;
451 datum = &row->fields[column->index];
452 for (i = 0; i < datum->n; i++) {
453 if (datum->keys[i].string[0]) {
454 return datum->keys[i].string;
462 static struct ovsdb_jsonrpc_options *
463 add_remote(struct shash *remotes, const char *target)
465 struct ovsdb_jsonrpc_options *options;
467 options = shash_find_data(remotes, target);
469 options = ovsdb_jsonrpc_default_options(target);
470 shash_add(remotes, target, options);
476 static struct ovsdb_datum *
477 get_datum(struct ovsdb_row *row, const char *column_name,
478 const enum ovsdb_atomic_type key_type,
479 const enum ovsdb_atomic_type value_type,
482 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
483 const struct ovsdb_table_schema *schema = row->table->schema;
484 const struct ovsdb_column *column;
486 column = ovsdb_table_schema_get_column(schema, column_name);
488 VLOG_DBG_RL(&rl, "Table `%s' has no `%s' column",
489 schema->name, column_name);
493 if (column->type.key.type != key_type
494 || column->type.value.type != value_type
495 || column->type.n_max != n_max) {
496 if (!VLOG_DROP_DBG(&rl)) {
497 char *type_name = ovsdb_type_to_english(&column->type);
498 VLOG_DBG("Table `%s' column `%s' has type %s, not expected "
499 "key type %s, value type %s, max elements %zd.",
500 schema->name, column_name, type_name,
501 ovsdb_atomic_type_to_string(key_type),
502 ovsdb_atomic_type_to_string(value_type),
509 return &row->fields[column->index];
512 /* Read string-string key-values from a map. Returns the value associated with
513 * 'key', if found, or NULL */
515 read_map_string_column(const struct ovsdb_row *row, const char *column_name,
518 const struct ovsdb_datum *datum;
519 union ovsdb_atom *atom_key = NULL, *atom_value = NULL;
522 datum = get_datum(CONST_CAST(struct ovsdb_row *, row), column_name,
523 OVSDB_TYPE_STRING, OVSDB_TYPE_STRING, UINT_MAX);
529 for (i = 0; i < datum->n; i++) {
530 atom_key = &datum->keys[i];
531 if (!strcmp(atom_key->string, key)){
532 atom_value = &datum->values[i];
537 return atom_value ? atom_value->string : NULL;
540 static const union ovsdb_atom *
541 read_column(const struct ovsdb_row *row, const char *column_name,
542 enum ovsdb_atomic_type type)
544 const struct ovsdb_datum *datum;
546 datum = get_datum(CONST_CAST(struct ovsdb_row *, row), column_name, type,
548 return datum && datum->n ? datum->keys : NULL;
552 read_integer_column(const struct ovsdb_row *row, const char *column_name,
553 long long int *integerp)
555 const union ovsdb_atom *atom;
557 atom = read_column(row, column_name, OVSDB_TYPE_INTEGER);
558 *integerp = atom ? atom->integer : 0;
563 read_string_column(const struct ovsdb_row *row, const char *column_name,
564 const char **stringp)
566 const union ovsdb_atom *atom;
568 atom = read_column(row, column_name, OVSDB_TYPE_STRING);
569 *stringp = atom ? atom->string : NULL;
574 write_bool_column(struct ovsdb_row *row, const char *column_name, bool value)
576 const struct ovsdb_column *column;
577 struct ovsdb_datum *datum;
579 column = ovsdb_table_schema_get_column(row->table->schema, column_name);
580 datum = get_datum(row, column_name, OVSDB_TYPE_BOOLEAN,
587 ovsdb_datum_destroy(datum, &column->type);
590 datum->keys = xmalloc(sizeof *datum->keys);
591 datum->values = NULL;
594 datum->keys[0].boolean = value;
598 write_string_string_column(struct ovsdb_row *row, const char *column_name,
599 char **keys, char **values, size_t n)
601 const struct ovsdb_column *column;
602 struct ovsdb_datum *datum;
605 column = ovsdb_table_schema_get_column(row->table->schema, column_name);
606 datum = get_datum(row, column_name, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING,
609 for (i = 0; i < n; i++) {
616 /* Free existing data. */
617 ovsdb_datum_destroy(datum, &column->type);
619 /* Allocate space for new values. */
621 datum->keys = xmalloc(n * sizeof *datum->keys);
622 datum->values = xmalloc(n * sizeof *datum->values);
624 for (i = 0; i < n; ++i) {
625 datum->keys[i].string = keys[i];
626 datum->values[i].string = values[i];
629 /* Sort and check constraints. */
630 ovsdb_datum_sort_assert(datum, column->type.key.type);
633 /* Adds a remote and options to 'remotes', based on the Manager table row in
636 add_manager_options(struct shash *remotes, const struct ovsdb_row *row)
638 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
639 struct ovsdb_jsonrpc_options *options;
640 long long int max_backoff, probe_interval;
641 const char *target, *dscp_string;
643 if (!read_string_column(row, "target", &target) || !target) {
644 VLOG_INFO_RL(&rl, "Table `%s' has missing or invalid `target' column",
645 row->table->schema->name);
649 options = add_remote(remotes, target);
650 if (read_integer_column(row, "max_backoff", &max_backoff)) {
651 options->max_backoff = max_backoff;
653 if (read_integer_column(row, "inactivity_probe", &probe_interval)) {
654 options->probe_interval = probe_interval;
657 options->dscp = DSCP_DEFAULT;
658 dscp_string = read_map_string_column(row, "other_config", "dscp");
660 int dscp = atoi(dscp_string);
661 if (dscp >= 0 && dscp <= 63) {
662 options->dscp = dscp;
668 query_db_remotes(const char *name, const struct shash *all_dbs,
669 struct shash *remotes)
671 const struct ovsdb_column *column;
672 const struct ovsdb_table *table;
673 const struct ovsdb_row *row;
677 retval = parse_db_column(all_dbs, name, &db, &table, &column);
679 ovs_fatal(0, "%s", retval);
682 if (column->type.key.type == OVSDB_TYPE_STRING
683 && column->type.value.type == OVSDB_TYPE_VOID) {
684 HMAP_FOR_EACH (row, hmap_node, &table->rows) {
685 const struct ovsdb_datum *datum;
688 datum = &row->fields[column->index];
689 for (i = 0; i < datum->n; i++) {
690 add_remote(remotes, datum->keys[i].string);
693 } else if (column->type.key.type == OVSDB_TYPE_UUID
694 && column->type.key.u.uuid.refTable
695 && column->type.value.type == OVSDB_TYPE_VOID) {
696 const struct ovsdb_table *ref_table = column->type.key.u.uuid.refTable;
697 HMAP_FOR_EACH (row, hmap_node, &table->rows) {
698 const struct ovsdb_datum *datum;
701 datum = &row->fields[column->index];
702 for (i = 0; i < datum->n; i++) {
703 const struct ovsdb_row *ref_row;
705 ref_row = ovsdb_table_get_row(ref_table, &datum->keys[i].uuid);
707 add_manager_options(remotes, ref_row);
715 update_remote_row(const struct ovsdb_row *row, struct ovsdb_txn *txn,
716 const struct ovsdb_jsonrpc_server *jsonrpc)
718 struct ovsdb_jsonrpc_remote_status status;
719 struct ovsdb_row *rw_row;
721 char *keys[9], *values[9];
724 /* Get the "target" (protocol/host/port) spec. */
725 if (!read_string_column(row, "target", &target)) {
726 /* Bad remote spec or incorrect schema. */
729 rw_row = ovsdb_txn_row_modify(txn, row);
730 ovsdb_jsonrpc_server_get_remote_status(jsonrpc, target, &status);
732 /* Update status information columns. */
733 write_bool_column(rw_row, "is_connected", status.is_connected);
736 keys[n] = xstrdup("state");
737 values[n++] = xstrdup(status.state);
739 if (status.sec_since_connect != UINT_MAX) {
740 keys[n] = xstrdup("sec_since_connect");
741 values[n++] = xasprintf("%u", status.sec_since_connect);
743 if (status.sec_since_disconnect != UINT_MAX) {
744 keys[n] = xstrdup("sec_since_disconnect");
745 values[n++] = xasprintf("%u", status.sec_since_disconnect);
747 if (status.last_error) {
748 keys[n] = xstrdup("last_error");
750 xstrdup(ovs_retval_to_string(status.last_error));
752 if (status.locks_held && status.locks_held[0]) {
753 keys[n] = xstrdup("locks_held");
754 values[n++] = xstrdup(status.locks_held);
756 if (status.locks_waiting && status.locks_waiting[0]) {
757 keys[n] = xstrdup("locks_waiting");
758 values[n++] = xstrdup(status.locks_waiting);
760 if (status.locks_lost && status.locks_lost[0]) {
761 keys[n] = xstrdup("locks_lost");
762 values[n++] = xstrdup(status.locks_lost);
764 if (status.n_connections > 1) {
765 keys[n] = xstrdup("n_connections");
766 values[n++] = xasprintf("%d", status.n_connections);
768 if (status.bound_port != htons(0)) {
769 keys[n] = xstrdup("bound_port");
770 values[n++] = xasprintf("%"PRIu16, ntohs(status.bound_port));
772 write_string_string_column(rw_row, "status", keys, values, n);
774 ovsdb_jsonrpc_server_free_remote_status(&status);
778 update_remote_rows(const struct shash *all_dbs,
779 const char *remote_name,
780 const struct ovsdb_jsonrpc_server *jsonrpc)
782 const struct ovsdb_table *table, *ref_table;
783 const struct ovsdb_column *column;
784 const struct ovsdb_row *row;
788 if (strncmp("db:", remote_name, 3)) {
792 retval = parse_db_column(all_dbs, remote_name, &db, &table, &column);
794 ovs_fatal(0, "%s", retval);
797 if (column->type.key.type != OVSDB_TYPE_UUID
798 || !column->type.key.u.uuid.refTable
799 || column->type.value.type != OVSDB_TYPE_VOID) {
803 ref_table = column->type.key.u.uuid.refTable;
805 HMAP_FOR_EACH (row, hmap_node, &table->rows) {
806 const struct ovsdb_datum *datum;
809 datum = &row->fields[column->index];
810 for (i = 0; i < datum->n; i++) {
811 const struct ovsdb_row *ref_row;
813 ref_row = ovsdb_table_get_row(ref_table, &datum->keys[i].uuid);
815 update_remote_row(ref_row, db->txn, jsonrpc);
822 update_remote_status(const struct ovsdb_jsonrpc_server *jsonrpc,
823 const struct sset *remotes,
824 struct shash *all_dbs)
826 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
829 struct shash_node *node;
831 SHASH_FOR_EACH(node, all_dbs) {
833 db->txn = ovsdb_txn_create(db->db);
836 /* Iterate over --remote arguments given on command line. */
837 SSET_FOR_EACH (remote, remotes) {
838 update_remote_rows(all_dbs, remote, jsonrpc);
841 SHASH_FOR_EACH(node, all_dbs) {
842 struct ovsdb_error *error;
844 error = ovsdb_txn_commit(db->txn, false);
846 VLOG_ERR_RL(&rl, "Failed to update remote status: %s",
847 ovsdb_error_to_string(error));
848 ovsdb_error_destroy(error);
853 /* Reconfigures ovsdb-server based on information in the database. */
855 reconfigure_from_db(struct ovsdb_jsonrpc_server *jsonrpc,
856 const struct shash *all_dbs, struct sset *remotes)
858 struct shash resolved_remotes;
861 /* Configure remotes. */
862 shash_init(&resolved_remotes);
863 SSET_FOR_EACH (name, remotes) {
864 if (!strncmp(name, "db:", 3)) {
865 query_db_remotes(name, all_dbs, &resolved_remotes);
867 add_remote(&resolved_remotes, name);
870 ovsdb_jsonrpc_server_set_remotes(jsonrpc, &resolved_remotes);
871 shash_destroy_free_data(&resolved_remotes);
874 stream_ssl_set_key_and_cert(query_db_string(all_dbs, private_key_file),
875 query_db_string(all_dbs, certificate_file));
876 stream_ssl_set_ca_cert_file(query_db_string(all_dbs, ca_cert_file),
881 ovsdb_server_exit(struct unixctl_conn *conn, int argc OVS_UNUSED,
882 const char *argv[] OVS_UNUSED,
885 bool *exiting = exiting_;
887 unixctl_command_reply(conn, NULL);
891 ovsdb_server_compact(struct unixctl_conn *conn, int argc,
892 const char *argv[], void *dbs_)
894 struct shash *all_dbs = dbs_;
897 struct shash_node *node;
901 SHASH_FOR_EACH(node, all_dbs) {
905 name = db->db->schema->name;
907 if (argc < 2 || !strcmp(argv[1], name)) {
908 struct ovsdb_error *error;
910 VLOG_INFO("compacting %s database by user request", name);
912 error = ovsdb_file_compact(db->file);
914 char *s = ovsdb_error_to_string(error);
915 ds_put_format(&reply, "%s\n", s);
924 unixctl_command_reply_error(conn, "no database by that name");
925 } else if (reply.length) {
926 unixctl_command_reply_error(conn, ds_cstr(&reply));
928 unixctl_command_reply(conn, NULL);
933 /* "ovsdb-server/reconnect": makes ovsdb-server drop all of its JSON-RPC
934 * connections and reconnect. */
936 ovsdb_server_reconnect(struct unixctl_conn *conn, int argc OVS_UNUSED,
937 const char *argv[] OVS_UNUSED, void *jsonrpc_)
939 struct ovsdb_jsonrpc_server *jsonrpc = jsonrpc_;
941 ovsdb_jsonrpc_server_reconnect(jsonrpc);
942 unixctl_command_reply(conn, NULL);
945 /* "ovsdb-server/add-remote REMOTE": adds REMOTE to the set of remotes that
946 * ovsdb-server services. */
948 ovsdb_server_add_remote(struct unixctl_conn *conn, int argc OVS_UNUSED,
949 const char *argv[], void *aux_)
951 struct add_remote_aux *aux = aux_;
952 const char *remote = argv[1];
954 const struct ovsdb_column *column;
955 const struct ovsdb_table *table;
959 retval = (strncmp("db:", remote, 3)
961 : parse_db_column(aux->all_dbs, remote,
962 &db, &table, &column));
964 if (sset_add(aux->remotes, remote)) {
965 save_config(aux->config_tmpfile, aux->remotes);
967 unixctl_command_reply(conn, NULL);
969 unixctl_command_reply_error(conn, retval);
974 /* "ovsdb-server/remove-remote REMOTE": removes REMOTE frmo the set of remotes
975 * that ovsdb-server services. */
977 ovsdb_server_remove_remote(struct unixctl_conn *conn, int argc OVS_UNUSED,
978 const char *argv[], void *aux_)
980 struct remove_remote_aux *aux = aux_;
981 struct sset_node *node;
983 node = sset_find(aux->remotes, argv[1]);
985 sset_delete(aux->remotes, node);
986 save_config(aux->config_tmpfile, aux->remotes);
987 unixctl_command_reply(conn, NULL);
989 unixctl_command_reply_error(conn, "no such remote");
993 /* "ovsdb-server/list-remotes": outputs a list of configured rmeotes. */
995 ovsdb_server_list_remotes(struct unixctl_conn *conn, int argc OVS_UNUSED,
996 const char *argv[] OVS_UNUSED, void *remotes_)
998 struct sset *remotes = remotes_;
999 const char **list, **p;
1004 list = sset_sort(remotes);
1005 for (p = list; *p; p++) {
1006 ds_put_format(&s, "%s\n", *p);
1010 unixctl_command_reply(conn, ds_cstr(&s));
1015 parse_options(int *argcp, char **argvp[],
1016 struct sset *remotes, char **unixctl_pathp, char **run_command)
1019 OPT_REMOTE = UCHAR_MAX + 1,
1022 OPT_BOOTSTRAP_CA_CERT,
1027 static const struct option long_options[] = {
1028 {"remote", required_argument, NULL, OPT_REMOTE},
1029 {"unixctl", required_argument, NULL, OPT_UNIXCTL},
1030 {"run", required_argument, NULL, OPT_RUN},
1031 {"help", no_argument, NULL, 'h'},
1032 {"version", no_argument, NULL, 'V'},
1033 DAEMON_LONG_OPTIONS,
1035 {"bootstrap-ca-cert", required_argument, NULL, OPT_BOOTSTRAP_CA_CERT},
1036 {"private-key", required_argument, NULL, 'p'},
1037 {"certificate", required_argument, NULL, 'c'},
1038 {"ca-cert", required_argument, NULL, 'C'},
1039 {"enable-dummy", optional_argument, NULL, OPT_ENABLE_DUMMY},
1042 char *short_options = long_options_to_short_options(long_options);
1044 char **argv = *argvp;
1050 c = getopt_long(argc, argv, short_options, long_options, NULL);
1057 sset_add(remotes, optarg);
1061 *unixctl_pathp = optarg;
1065 *run_command = optarg;
1072 ovs_print_version(0, 0);
1075 VLOG_OPTION_HANDLERS
1076 DAEMON_OPTION_HANDLERS
1079 private_key_file = optarg;
1083 certificate_file = optarg;
1087 ca_cert_file = optarg;
1088 bootstrap_ca_cert = false;
1091 case OPT_BOOTSTRAP_CA_CERT:
1092 ca_cert_file = optarg;
1093 bootstrap_ca_cert = true;
1096 case OPT_ENABLE_DUMMY:
1097 dummy_enable(optarg && !strcmp(optarg, "override"));
1107 free(short_options);
1116 printf("%s: Open vSwitch database server\n"
1117 "usage: %s [OPTIONS] [DATABASE...]\n"
1118 "where each DATABASE is a database file in ovsdb format.\n"
1119 "The default DATABASE, if none is given, is\n%s/conf.db.\n",
1120 program_name, program_name, ovs_dbdir());
1121 printf("\nJSON-RPC options (may be specified any number of times):\n"
1122 " --remote=REMOTE connect or listen to REMOTE\n");
1123 stream_usage("JSON-RPC", true, true, true);
1126 printf("\nOther options:\n"
1127 " --run COMMAND run COMMAND as subprocess then exit\n"
1128 " --unixctl=SOCKET override default control socket name\n"
1129 " -h, --help display this help message\n"
1130 " -V, --version display version information\n");
1134 /* Truncates and replaces the contents of 'config_file' by a representation
1137 save_config(FILE *config_file, const struct sset *remotes)
1143 if (ftruncate(fileno(config_file), 0) == -1) {
1144 VLOG_FATAL("failed to truncate temporary file (%s)", strerror(errno));
1147 json = json_array_create_empty();
1148 SSET_FOR_EACH (remote, remotes) {
1149 json_array_add(json, json_string_create(remote));
1151 s = json_to_string(json, 0);
1154 if (fseek(config_file, 0, SEEK_SET) != 0
1155 || fputs(s, config_file) == EOF
1156 || fflush(config_file) == EOF) {
1157 VLOG_FATAL("failed to write temporary file (%s)", strerror(errno));
1162 /* Clears and replaces 'remotes' by a configuration read from 'config_file',
1163 * which must have been previously written by save_config(). */
1165 load_config(FILE *config_file, struct sset *remotes)
1170 sset_clear(remotes);
1172 if (fseek(config_file, 0, SEEK_SET) != 0) {
1173 VLOG_FATAL("seek failed in temporary file (%s)", strerror(errno));
1175 json = json_from_stream(config_file);
1176 if (json->type == JSON_STRING) {
1177 VLOG_FATAL("reading json failed (%s)", json_string(json));
1179 ovs_assert(json->type == JSON_ARRAY);
1180 for (i = 0; i < json->u.array.n; i++) {
1181 const struct json *remote = json->u.array.elems[i];
1182 sset_add(remotes, json_string(remote));