+static void
+parse_db_column(const struct ovsdb *db,
+ const char *name_,
+ const struct ovsdb_table **tablep,
+ const struct ovsdb_column **columnp)
+{
+ char *name, *table_name, *column_name;
+ const struct ovsdb_column *column;
+ const struct ovsdb_table *table;
+ char *save_ptr = NULL;
+
+ name = xstrdup(name_);
+ strtok_r(name, ":", &save_ptr); /* "db:" */
+ table_name = strtok_r(NULL, ",", &save_ptr);
+ column_name = strtok_r(NULL, ",", &save_ptr);
+ if (!table_name || !column_name) {
+ ovs_fatal(0, "\"%s\": invalid syntax", name_);
+ }
+
+ table = ovsdb_get_table(db, table_name);
+ if (!table) {
+ ovs_fatal(0, "\"%s\": no table named %s", name_, table_name);
+ }
+
+ column = ovsdb_table_schema_get_column(table->schema, column_name);
+ if (!column) {
+ ovs_fatal(0, "\"%s\": table \"%s\" has no column \"%s\"",
+ name_, table_name, column_name);
+ }
+ free(name);
+
+ *columnp = column;
+ *tablep = table;
+}
+
+static void
+parse_db_string_column(const struct ovsdb *db,
+ const char *name,
+ const struct ovsdb_table **tablep,
+ const struct ovsdb_column **columnp)
+{
+ const struct ovsdb_column *column;
+ const struct ovsdb_table *table;
+
+ parse_db_column(db, name, &table, &column);
+
+ if (column->type.key.type != OVSDB_TYPE_STRING
+ || column->type.value.type != OVSDB_TYPE_VOID) {
+ ovs_fatal(0, "\"%s\": table \"%s\" column \"%s\" is "
+ "not string or set of strings",
+ name, table->schema->name, column->name);
+ }
+
+ *columnp = column;
+ *tablep = table;
+}
+
+#if HAVE_OPENSSL
+static const char *
+query_db_string(const struct ovsdb *db, const char *name)
+{
+ if (!name || strncmp(name, "db:", 3)) {
+ return name;
+ } else {
+ const struct ovsdb_column *column;
+ const struct ovsdb_table *table;
+ const struct ovsdb_row *row;
+
+ parse_db_string_column(db, name, &table, &column);
+
+ HMAP_FOR_EACH (row, hmap_node, &table->rows) {
+ const struct ovsdb_datum *datum;
+ size_t i;
+
+ datum = &row->fields[column->index];
+ for (i = 0; i < datum->n; i++) {
+ if (datum->keys[i].string[0]) {
+ return datum->keys[i].string;
+ }
+ }
+ }
+ return NULL;
+ }
+}
+#endif /* HAVE_OPENSSL */
+
+static struct ovsdb_jsonrpc_options *
+add_remote(struct shash *remotes, const char *target)
+{
+ struct ovsdb_jsonrpc_options *options;
+
+ options = shash_find_data(remotes, target);
+ if (!options) {
+ options = ovsdb_jsonrpc_default_options();
+ shash_add(remotes, target, options);
+ }
+
+ return options;
+}
+
+static const union ovsdb_atom *
+read_column(const struct ovsdb_row *row, const char *column_name,
+ enum ovsdb_atomic_type type)
+{
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
+ const struct ovsdb_table_schema *schema = row->table->schema;
+ const struct ovsdb_column *column;
+ const struct ovsdb_datum *datum;
+
+ column = ovsdb_table_schema_get_column(schema, column_name);
+ if (!column) {
+ VLOG_DBG_RL(&rl, "Table `%s' has no `%s' column",
+ schema->name, column_name);
+ return false;
+ }
+
+ if (column->type.key.type != type
+ || column->type.value.type != OVSDB_TYPE_VOID
+ || column->type.n_max != 1) {
+ if (!VLOG_DROP_DBG(&rl)) {
+ char *type_name = ovsdb_type_to_english(&column->type);
+ VLOG_DBG("Table `%s' column `%s' has type %s, not expected "
+ "type %s.", schema->name, column_name, type_name,
+ ovsdb_atomic_type_to_string(type));
+ }
+ return false;
+ }
+
+ datum = &row->fields[column->index];
+ return datum->n ? datum->keys : NULL;
+}
+
+static bool
+read_integer_column(const struct ovsdb_row *row, const char *column_name,
+ long long int *integerp)
+{
+ const union ovsdb_atom *atom;
+
+ atom = read_column(row, column_name, OVSDB_TYPE_INTEGER);
+ *integerp = atom ? atom->integer : 0;
+ return atom != NULL;
+}
+
+static bool
+read_string_column(const struct ovsdb_row *row, const char *column_name,
+ const char **stringp)
+{
+ const union ovsdb_atom *atom;
+
+ atom = read_column(row, column_name, OVSDB_TYPE_STRING);
+ *stringp = atom ? atom->string : 0;
+ return atom != NULL;
+}
+
+/* Adds a remote and options to 'remotes', based on the Manager table row in
+ * 'row'. */
+static void
+add_manager_options(struct shash *remotes, const struct ovsdb_row *row)
+{
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
+ struct ovsdb_jsonrpc_options *options;
+ long long int max_backoff, probe_interval;
+ const char *target;
+
+ if (!read_string_column(row, "target", &target) || !target) {
+ VLOG_INFO_RL(&rl, "Table `%s' has missing or invalid `target' column",
+ row->table->schema->name);
+ return;
+ }
+
+ options = add_remote(remotes, target);
+ if (read_integer_column(row, "max_backoff", &max_backoff)) {
+ options->max_backoff = max_backoff;
+ }
+ if (read_integer_column(row, "probe_interval", &probe_interval)) {
+ options->probe_interval = probe_interval;
+ }
+}
+
+static void
+query_db_remotes(const char *name, const struct ovsdb *db,
+ struct shash *remotes)
+{
+ const struct ovsdb_column *column;
+ const struct ovsdb_table *table;
+ const struct ovsdb_row *row;
+
+ parse_db_column(db, name, &table, &column);
+
+ if (column->type.key.type == OVSDB_TYPE_STRING
+ && column->type.value.type == OVSDB_TYPE_VOID) {
+ HMAP_FOR_EACH (row, hmap_node, &table->rows) {
+ const struct ovsdb_datum *datum;
+ size_t i;
+
+ datum = &row->fields[column->index];
+ for (i = 0; i < datum->n; i++) {
+ add_remote(remotes, datum->keys[i].string);
+ }
+ }
+ } else if (column->type.key.type == OVSDB_TYPE_UUID
+ && column->type.key.u.uuid.refTable
+ && column->type.value.type == OVSDB_TYPE_VOID) {
+ const struct ovsdb_table *ref_table = column->type.key.u.uuid.refTable;
+ HMAP_FOR_EACH (row, hmap_node, &table->rows) {
+ const struct ovsdb_datum *datum;
+ size_t i;
+
+ datum = &row->fields[column->index];
+ for (i = 0; i < datum->n; i++) {
+ const struct ovsdb_row *ref_row;
+
+ ref_row = ovsdb_table_get_row(ref_table, &datum->keys[i].uuid);
+ if (ref_row) {
+ add_manager_options(remotes, ref_row);
+ }
+ }
+ }
+ }
+}
+
+/* Reconfigures ovsdb-server based on information in the database. */
+static void
+reconfigure_from_db(struct ovsdb_jsonrpc_server *jsonrpc,
+ const struct ovsdb *db, struct shash *remotes)
+{
+ struct shash resolved_remotes;
+ struct shash_node *node;
+
+ /* Configure remotes. */
+ shash_init(&resolved_remotes);
+ SHASH_FOR_EACH (node, remotes) {
+ const char *name = node->name;
+
+ if (!strncmp(name, "db:", 3)) {
+ query_db_remotes(name, db, &resolved_remotes);
+ } else {
+ add_remote(&resolved_remotes, name);
+ }
+ }
+ ovsdb_jsonrpc_server_set_remotes(jsonrpc, &resolved_remotes);
+ shash_destroy(&resolved_remotes);
+
+#if HAVE_OPENSSL
+ /* Configure SSL. */
+ stream_ssl_set_key_and_cert(query_db_string(db, private_key_file),
+ query_db_string(db, certificate_file));
+ stream_ssl_set_ca_cert_file(query_db_string(db, ca_cert_file),
+ bootstrap_ca_cert);
+#endif
+}
+
+static void
+ovsdb_server_exit(struct unixctl_conn *conn, const char *args OVS_UNUSED,
+ void *exiting_)
+{
+ bool *exiting = exiting_;
+ *exiting = true;
+ unixctl_command_reply(conn, 200, NULL);
+}
+
+static void
+ovsdb_server_compact(struct unixctl_conn *conn, const char *args OVS_UNUSED,
+ void *file_)
+{
+ struct ovsdb_file *file = file_;
+ struct ovsdb_error *error;
+
+ VLOG_INFO("compacting database by user request");
+ error = ovsdb_file_compact(file);
+ if (!error) {
+ unixctl_command_reply(conn, 200, NULL);
+ } else {
+ char *s = ovsdb_error_to_string(error);
+ ovsdb_error_destroy(error);
+ unixctl_command_reply(conn, 503, s);
+ free(s);
+ }
+}
+
+/* "ovsdb-server/reconnect": makes ovsdb-server drop all of its JSON-RPC
+ * connections and reconnect. */
+static void
+ovsdb_server_reconnect(struct unixctl_conn *conn, const char *args OVS_UNUSED,
+ void *jsonrpc_)
+{
+ struct ovsdb_jsonrpc_server *jsonrpc = jsonrpc_;
+
+ ovsdb_jsonrpc_server_reconnect(jsonrpc);
+ unixctl_command_reply(conn, 200, NULL);
+}
+