2 * Copyright (c) 2009, 2010, 2011, 2012 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
29 #include "command-line.h"
34 #include "dynamic-string.h"
37 #include "lib/table.h"
39 #include "ovsdb-data.h"
40 #include "ovsdb-error.h"
44 #include "stream-ssl.h"
50 VLOG_DEFINE_THIS_MODULE(ovsdb_client);
53 NEED_NONE, /* No JSON-RPC connection or database name needed. */
54 NEED_RPC, /* JSON-RPC connection needed. */
55 NEED_DATABASE /* JSON-RPC connection and database name needed. */
58 struct ovsdb_client_command {
60 enum args_needed need;
63 void (*handler)(struct jsonrpc *rpc, const char *database,
64 int argc, char *argv[]);
67 /* --timestamp: Print a timestamp before each update on "monitor" command? */
68 static bool timestamp;
70 /* Format for table output. */
71 static struct table_style table_style = TABLE_STYLE_DEFAULT;
73 static const struct ovsdb_client_command all_commands[];
75 static void usage(void) NO_RETURN;
76 static void parse_options(int argc, char *argv[]);
77 static struct jsonrpc *open_jsonrpc(const char *server);
78 static void fetch_dbs(struct jsonrpc *, struct svec *dbs);
81 main(int argc, char *argv[])
83 const struct ovsdb_client_command *command;
87 proctitle_init(argc, argv);
88 set_program_name(argv[0]);
89 parse_options(argc, argv);
90 signal(SIGPIPE, SIG_IGN);
93 ovs_fatal(0, "missing command name; use --help for help");
96 for (command = all_commands; ; command++) {
98 VLOG_FATAL("unknown command '%s'; use --help for help",
100 } else if (!strcmp(command->name, argv[optind])) {
106 if (command->need != NEED_NONE) {
107 if (argc - optind > command->min_args
108 && (isalpha((unsigned char) argv[optind][0])
109 && strchr(argv[optind], ':'))) {
110 rpc = open_jsonrpc(argv[optind++]);
112 char *sock = xasprintf("unix:%s/db.sock", ovs_rundir());
113 rpc = open_jsonrpc(sock);
120 if (command->need == NEED_DATABASE) {
124 fetch_dbs(rpc, &dbs);
125 if (argc - optind > command->min_args
126 && svec_contains(&dbs, argv[optind])) {
127 database = argv[optind++];
128 } else if (dbs.n == 1) {
129 database = xstrdup(dbs.names[0]);
130 } else if (svec_contains(&dbs, "Open_vSwitch")) {
131 database = "Open_vSwitch";
133 ovs_fatal(0, "no default database for `%s' command, please "
134 "specify a database name", command->name);
141 if (argc - optind < command->min_args ||
142 argc - optind > command->max_args) {
143 VLOG_FATAL("invalid syntax for '%s' (use --help for help)",
147 command->handler(rpc, database, argc - optind, argv + optind);
151 if (ferror(stdout)) {
152 VLOG_FATAL("write to stdout failed");
154 if (ferror(stderr)) {
155 VLOG_FATAL("write to stderr failed");
162 parse_options(int argc, char *argv[])
165 OPT_BOOTSTRAP_CA_CERT = UCHAR_MAX + 1,
170 static struct option long_options[] = {
171 {"verbose", optional_argument, NULL, 'v'},
172 {"help", no_argument, NULL, 'h'},
173 {"version", no_argument, NULL, 'V'},
174 {"timestamp", no_argument, NULL, OPT_TIMESTAMP},
177 {"bootstrap-ca-cert", required_argument, NULL, OPT_BOOTSTRAP_CA_CERT},
178 STREAM_SSL_LONG_OPTIONS,
183 char *short_options = long_options_to_short_options(long_options);
188 c = getopt_long(argc, argv, short_options, long_options, NULL);
198 ovs_print_version(0, 0);
202 vlog_set_verbosity(optarg);
205 DAEMON_OPTION_HANDLERS
207 TABLE_OPTION_HANDLERS(&table_style)
209 STREAM_SSL_OPTION_HANDLERS
211 case OPT_BOOTSTRAP_CA_CERT:
212 stream_ssl_set_ca_cert_file(optarg, true);
223 /* getopt_long() already set the value for us. */
236 printf("%s: Open vSwitch database JSON-RPC client\n"
237 "usage: %s [OPTIONS] COMMAND [ARG...]\n"
238 "\nValid commands are:\n"
239 "\n list-dbs [SERVER]\n"
240 " list databases available on SERVER\n"
241 "\n get-schema [SERVER] [DATABASE]\n"
242 " retrieve schema for DATABASE from SERVER\n"
243 "\n get-schema-version [SERVER] [DATABASE]\n"
244 " retrieve schema for DATABASE from SERVER and report only its\n"
245 " version number on stdout\n"
246 "\n list-tables [SERVER] [DATABASE]\n"
247 " list tables for DATABASE on SERVER\n"
248 "\n list-columns [SERVER] [DATABASE] [TABLE]\n"
249 " list columns in TABLE (or all tables) in DATABASE on SERVER\n"
250 "\n transact [SERVER] TRANSACTION\n"
251 " run TRANSACTION (a JSON array of operations) on SERVER\n"
252 " and print the results as JSON on stdout\n"
253 "\n monitor [SERVER] [DATABASE] TABLE [COLUMN,...]...\n"
254 " monitor contents of COLUMNs in TABLE in DATABASE on SERVER.\n"
255 " COLUMNs may include !initial, !insert, !delete, !modify\n"
256 " to avoid seeing the specified kinds of changes.\n"
257 "\n dump [SERVER] [DATABASE]\n"
258 " dump contents of DATABASE on SERVER to stdout\n"
259 "\nThe default SERVER is unix:%s/db.sock.\n"
260 "The default DATABASE is Open_vSwitch.\n",
261 program_name, program_name, ovs_rundir());
262 stream_usage("SERVER", true, true, true);
263 printf("\nOutput formatting options:\n"
264 " -f, --format=FORMAT set output formatting to FORMAT\n"
265 " (\"table\", \"html\", \"csv\", "
267 " --no-headings omit table heading row\n"
268 " --pretty pretty-print JSON in output\n"
269 " --timestamp timestamp \"monitor\" output");
272 printf("\nOther options:\n"
273 " -h, --help display this help message\n"
274 " -V, --version display version information\n");
279 check_txn(int error, struct jsonrpc_msg **reply_)
281 struct jsonrpc_msg *reply = *reply_;
284 ovs_fatal(error, "transaction failed");
288 ovs_fatal(error, "transaction returned error: %s",
289 json_to_string(reply->error, table_style.json_flags));
294 parse_json(const char *s)
296 struct json *json = json_from_string(s);
297 if (json->type == JSON_STRING) {
298 ovs_fatal(0, "\"%s\": %s", s, json->u.string);
303 static struct jsonrpc *
304 open_jsonrpc(const char *server)
306 struct stream *stream;
309 error = stream_open_block(jsonrpc_stream_open(server, &stream,
310 DSCP_DEFAULT), &stream);
311 if (error == EAFNOSUPPORT) {
312 struct pstream *pstream;
314 error = jsonrpc_pstream_open(server, &pstream, DSCP_DEFAULT);
316 ovs_fatal(error, "failed to connect or listen to \"%s\"", server);
319 VLOG_INFO("%s: waiting for connection...", server);
320 error = pstream_accept_block(pstream, &stream);
322 ovs_fatal(error, "failed to accept connection on \"%s\"", server);
325 pstream_close(pstream);
327 ovs_fatal(error, "failed to connect to \"%s\"", server);
330 return jsonrpc_open(stream);
334 print_json(struct json *json)
336 char *string = json_to_string(json, table_style.json_flags);
337 fputs(string, stdout);
342 print_and_free_json(struct json *json)
349 check_ovsdb_error(struct ovsdb_error *error)
352 ovs_fatal(0, "%s", ovsdb_error_to_string(error));
356 static struct ovsdb_schema *
357 fetch_schema(struct jsonrpc *rpc, const char *database)
359 struct jsonrpc_msg *request, *reply;
360 struct ovsdb_schema *schema;
362 request = jsonrpc_create_request("get_schema",
364 json_string_create(database)),
366 check_txn(jsonrpc_transact_block(rpc, request, &reply), &reply);
367 check_ovsdb_error(ovsdb_schema_from_json(reply->result, &schema));
368 jsonrpc_msg_destroy(reply);
374 fetch_dbs(struct jsonrpc *rpc, struct svec *dbs)
376 struct jsonrpc_msg *request, *reply;
379 request = jsonrpc_create_request("list_dbs", json_array_create_empty(),
382 check_txn(jsonrpc_transact_block(rpc, request, &reply), &reply);
383 if (reply->result->type != JSON_ARRAY) {
384 ovs_fatal(0, "list_dbs response is not array");
387 for (i = 0; i < reply->result->u.array.n; i++) {
388 const struct json *name = reply->result->u.array.elems[i];
390 if (name->type != JSON_STRING) {
391 ovs_fatal(0, "list_dbs response %zu is not string", i);
393 svec_add(dbs, name->u.string);
395 jsonrpc_msg_destroy(reply);
399 do_list_dbs(struct jsonrpc *rpc, const char *database OVS_UNUSED,
400 int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
407 fetch_dbs(rpc, &dbs);
409 SVEC_FOR_EACH (i, db_name, &dbs) {
416 do_get_schema(struct jsonrpc *rpc, const char *database,
417 int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
419 struct ovsdb_schema *schema = fetch_schema(rpc, database);
420 print_and_free_json(ovsdb_schema_to_json(schema));
421 ovsdb_schema_destroy(schema);
425 do_get_schema_version(struct jsonrpc *rpc, const char *database,
426 int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
428 struct ovsdb_schema *schema = fetch_schema(rpc, database);
429 puts(schema->version);
430 ovsdb_schema_destroy(schema);
434 do_list_tables(struct jsonrpc *rpc, const char *database,
435 int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
437 struct ovsdb_schema *schema;
438 struct shash_node *node;
441 schema = fetch_schema(rpc, database);
443 table_add_column(&t, "Table");
444 SHASH_FOR_EACH (node, &schema->tables) {
445 struct ovsdb_table_schema *ts = node->data;
448 table_add_cell(&t)->text = xstrdup(ts->name);
450 ovsdb_schema_destroy(schema);
451 table_print(&t, &table_style);
455 do_list_columns(struct jsonrpc *rpc, const char *database,
456 int argc OVS_UNUSED, char *argv[])
458 const char *table_name = argv[0];
459 struct ovsdb_schema *schema;
460 struct shash_node *table_node;
463 schema = fetch_schema(rpc, database);
466 table_add_column(&t, "Table");
468 table_add_column(&t, "Column");
469 table_add_column(&t, "Type");
470 SHASH_FOR_EACH (table_node, &schema->tables) {
471 struct ovsdb_table_schema *ts = table_node->data;
473 if (!table_name || !strcmp(table_name, ts->name)) {
474 struct shash_node *column_node;
476 SHASH_FOR_EACH (column_node, &ts->columns) {
477 const struct ovsdb_column *column = column_node->data;
481 table_add_cell(&t)->text = xstrdup(ts->name);
483 table_add_cell(&t)->text = xstrdup(column->name);
484 table_add_cell(&t)->json = ovsdb_type_to_json(&column->type);
488 ovsdb_schema_destroy(schema);
489 table_print(&t, &table_style);
493 do_transact(struct jsonrpc *rpc, const char *database OVS_UNUSED,
494 int argc OVS_UNUSED, char *argv[])
496 struct jsonrpc_msg *request, *reply;
497 struct json *transaction;
499 transaction = parse_json(argv[0]);
501 request = jsonrpc_create_request("transact", transaction, NULL);
502 check_txn(jsonrpc_transact_block(rpc, request, &reply), &reply);
503 print_json(reply->result);
505 jsonrpc_msg_destroy(reply);
509 monitor_print_row(struct json *row, const char *type, const char *uuid,
510 const struct ovsdb_column_set *columns, struct table *t)
515 ovs_error(0, "missing %s row", type);
517 } else if (row->type != JSON_OBJECT) {
518 ovs_error(0, "<row> is not object");
523 table_add_cell(t)->text = xstrdup(uuid);
524 table_add_cell(t)->text = xstrdup(type);
525 for (i = 0; i < columns->n_columns; i++) {
526 const struct ovsdb_column *column = columns->columns[i];
527 struct json *value = shash_find_data(json_object(row), column->name);
528 struct cell *cell = table_add_cell(t);
530 cell->json = json_clone(value);
531 cell->type = &column->type;
537 monitor_print(struct json *table_updates,
538 const struct ovsdb_table_schema *table,
539 const struct ovsdb_column_set *columns, bool initial)
541 struct json *table_update;
542 struct shash_node *node;
547 table_set_timestamp(&t, timestamp);
549 if (table_updates->type != JSON_OBJECT) {
550 ovs_error(0, "<table-updates> is not object");
553 table_update = shash_find_data(json_object(table_updates), table->name);
557 if (table_update->type != JSON_OBJECT) {
558 ovs_error(0, "<table-update> is not object");
562 table_add_column(&t, "row");
563 table_add_column(&t, "action");
564 for (i = 0; i < columns->n_columns; i++) {
565 table_add_column(&t, "%s", columns->columns[i]->name);
567 SHASH_FOR_EACH (node, json_object(table_update)) {
568 struct json *row_update = node->data;
569 struct json *old, *new;
571 if (row_update->type != JSON_OBJECT) {
572 ovs_error(0, "<row-update> is not object");
575 old = shash_find_data(json_object(row_update), "old");
576 new = shash_find_data(json_object(row_update), "new");
578 monitor_print_row(new, "initial", node->name, columns, &t);
580 monitor_print_row(new, "insert", node->name, columns, &t);
582 monitor_print_row(old, "delete", node->name, columns, &t);
584 monitor_print_row(old, "old", node->name, columns, &t);
585 monitor_print_row(new, "new", "", columns, &t);
588 table_print(&t, &table_style);
593 add_column(const char *server, const struct ovsdb_column *column,
594 struct ovsdb_column_set *columns, struct json *columns_json)
596 if (ovsdb_column_set_contains(columns, column->index)) {
597 ovs_fatal(0, "%s: column \"%s\" mentioned multiple times",
598 server, column->name);
600 ovsdb_column_set_add(columns, column);
601 json_array_add(columns_json, json_string_create(column->name));
605 parse_monitor_columns(char *arg, const char *server, const char *database,
606 const struct ovsdb_table_schema *table,
607 struct ovsdb_column_set *columns)
609 bool initial, insert, delete, modify;
610 struct json *mr, *columns_json;
611 char *save_ptr = NULL;
614 mr = json_object_create();
615 columns_json = json_array_create_empty();
616 json_object_put(mr, "columns", columns_json);
618 initial = insert = delete = modify = true;
619 for (token = strtok_r(arg, ",", &save_ptr); token != NULL;
620 token = strtok_r(NULL, ",", &save_ptr)) {
621 if (!strcmp(token, "!initial")) {
623 } else if (!strcmp(token, "!insert")) {
625 } else if (!strcmp(token, "!delete")) {
627 } else if (!strcmp(token, "!modify")) {
630 const struct ovsdb_column *column;
632 column = ovsdb_table_schema_get_column(table, token);
634 ovs_fatal(0, "%s: table \"%s\" in %s does not have a "
635 "column named \"%s\"",
636 server, table->name, database, token);
638 add_column(server, column, columns, columns_json);
642 if (columns_json->u.array.n == 0) {
643 const struct shash_node **nodes;
646 n = shash_count(&table->columns);
647 nodes = shash_sort(&table->columns);
648 for (i = 0; i < n; i++) {
649 const struct ovsdb_column *column = nodes[i]->data;
650 if (column->index != OVSDB_COL_UUID
651 && column->index != OVSDB_COL_VERSION) {
652 add_column(server, column, columns, columns_json);
657 add_column(server, ovsdb_table_schema_get_column(table,"_version"),
658 columns, columns_json);
661 if (!initial || !insert || !delete || !modify) {
662 struct json *select = json_object_create();
663 json_object_put(select, "initial", json_boolean_create(initial));
664 json_object_put(select, "insert", json_boolean_create(insert));
665 json_object_put(select, "delete", json_boolean_create(delete));
666 json_object_put(select, "modify", json_boolean_create(modify));
667 json_object_put(mr, "select", select);
674 do_monitor(struct jsonrpc *rpc, const char *database,
675 int argc, char *argv[])
677 const char *server = jsonrpc_get_name(rpc);
678 const char *table_name = argv[0];
679 struct ovsdb_column_set columns = OVSDB_COLUMN_SET_INITIALIZER;
680 struct ovsdb_table_schema *table;
681 struct ovsdb_schema *schema;
682 struct jsonrpc_msg *request;
683 struct json *monitor, *monitor_request_array,
684 *monitor_requests, *request_id;
686 schema = fetch_schema(rpc, database);
687 table = shash_find_data(&schema->tables, table_name);
689 ovs_fatal(0, "%s: %s does not have a table named \"%s\"",
690 server, database, table_name);
693 monitor_request_array = json_array_create_empty();
697 for (i = 1; i < argc; i++) {
699 monitor_request_array,
700 parse_monitor_columns(argv[i], server, database, table,
704 /* Allocate a writable empty string since parse_monitor_columns() is
705 * going to strtok() it and that's risky with literal "". */
708 monitor_request_array,
709 parse_monitor_columns(empty, server, database, table, &columns));
712 monitor_requests = json_object_create();
713 json_object_put(monitor_requests, table_name, monitor_request_array);
715 monitor = json_array_create_3(json_string_create(database),
716 json_null_create(), monitor_requests);
717 request = jsonrpc_create_request("monitor", monitor, NULL);
718 request_id = json_clone(request->id);
719 jsonrpc_send(rpc, request);
721 struct jsonrpc_msg *msg;
724 error = jsonrpc_recv_block(rpc, &msg);
726 ovsdb_schema_destroy(schema);
727 ovs_fatal(error, "%s: receive failed", server);
730 if (msg->type == JSONRPC_REQUEST && !strcmp(msg->method, "echo")) {
731 jsonrpc_send(rpc, jsonrpc_create_reply(json_clone(msg->params),
733 } else if (msg->type == JSONRPC_REPLY
734 && json_equal(msg->id, request_id)) {
735 monitor_print(msg->result, table, &columns, true);
738 daemon_save_fd(STDOUT_FILENO);
741 } else if (msg->type == JSONRPC_NOTIFY
742 && !strcmp(msg->method, "update")) {
743 struct json *params = msg->params;
744 if (params->type == JSON_ARRAY
745 && params->u.array.n == 2
746 && params->u.array.elems[0]->type == JSON_NULL) {
747 monitor_print(params->u.array.elems[1],
748 table, &columns, false);
752 jsonrpc_msg_destroy(msg);
756 struct dump_table_aux {
757 struct ovsdb_datum **data;
758 const struct ovsdb_column **columns;
763 compare_data(size_t a_y, size_t b_y, size_t x,
764 const struct dump_table_aux *aux)
766 return ovsdb_datum_compare_3way(&aux->data[a_y][x],
768 &aux->columns[x]->type);
772 compare_rows(size_t a_y, size_t b_y, void *aux_)
774 struct dump_table_aux *aux = aux_;
777 /* Skip UUID columns on the first pass, since their values tend to be
778 * random and make our results less reproducible. */
779 for (x = 0; x < aux->n_columns; x++) {
780 if (aux->columns[x]->type.key.type != OVSDB_TYPE_UUID) {
781 int cmp = compare_data(a_y, b_y, x, aux);
788 /* Use UUID columns as tie-breakers. */
789 for (x = 0; x < aux->n_columns; x++) {
790 if (aux->columns[x]->type.key.type == OVSDB_TYPE_UUID) {
791 int cmp = compare_data(a_y, b_y, x, aux);
802 swap_rows(size_t a_y, size_t b_y, void *aux_)
804 struct dump_table_aux *aux = aux_;
805 struct ovsdb_datum *tmp = aux->data[a_y];
806 aux->data[a_y] = aux->data[b_y];
807 aux->data[b_y] = tmp;
811 compare_columns(const void *a_, const void *b_)
813 const struct ovsdb_column *const *ap = a_;
814 const struct ovsdb_column *const *bp = b_;
815 const struct ovsdb_column *a = *ap;
816 const struct ovsdb_column *b = *bp;
818 return strcmp(a->name, b->name);
822 dump_table(const struct ovsdb_table_schema *ts, struct json_array *rows)
824 const struct ovsdb_column **columns;
827 struct ovsdb_datum **data;
829 struct dump_table_aux aux;
830 struct shash_node *node;
834 /* Sort columns by name, for reproducibility. */
835 columns = xmalloc(shash_count(&ts->columns) * sizeof *columns);
837 SHASH_FOR_EACH (node, &ts->columns) {
838 struct ovsdb_column *column = node->data;
839 if (strcmp(column->name, "_version")) {
840 columns[n_columns++] = column;
843 qsort(columns, n_columns, sizeof *columns, compare_columns);
845 /* Extract data from table. */
846 data = xmalloc(rows->n * sizeof *data);
847 for (y = 0; y < rows->n; y++) {
850 if (rows->elems[y]->type != JSON_OBJECT) {
851 ovs_fatal(0, "row %zu in table %s response is not a JSON object: "
852 "%s", y, ts->name, json_to_string(rows->elems[y], 0));
854 row = json_object(rows->elems[y]);
856 data[y] = xmalloc(n_columns * sizeof **data);
857 for (x = 0; x < n_columns; x++) {
858 const struct json *json = shash_find_data(row, columns[x]->name);
860 ovs_fatal(0, "row %zu in table %s response lacks %s column",
861 y, ts->name, columns[x]->name);
864 check_ovsdb_error(ovsdb_datum_from_json(&data[y][x],
870 /* Sort rows by column values, for reproducibility. */
872 aux.columns = columns;
873 aux.n_columns = n_columns;
874 sort(rows->n, compare_rows, swap_rows, &aux);
876 /* Add column headings. */
878 table_set_caption(&t, xasprintf("%s table", ts->name));
879 for (x = 0; x < n_columns; x++) {
880 table_add_column(&t, "%s", columns[x]->name);
884 for (y = 0; y < rows->n; y++) {
886 for (x = 0; x < n_columns; x++) {
887 struct cell *cell = table_add_cell(&t);
888 cell->json = ovsdb_datum_to_json(&data[y][x], &columns[x]->type);
889 cell->type = &columns[x]->type;
890 ovsdb_datum_destroy(&data[y][x], &columns[x]->type);
894 table_print(&t, &table_style);
902 do_dump(struct jsonrpc *rpc, const char *database,
903 int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
905 struct jsonrpc_msg *request, *reply;
906 struct ovsdb_schema *schema;
907 struct json *transaction;
909 const struct shash_node **tables;
914 schema = fetch_schema(rpc, database);
915 tables = shash_sort(&schema->tables);
916 n_tables = shash_count(&schema->tables);
918 /* Construct transaction to retrieve entire database. */
919 transaction = json_array_create_1(json_string_create(database));
920 for (i = 0; i < n_tables; i++) {
921 const struct ovsdb_table_schema *ts = tables[i]->data;
922 struct json *op, *columns;
923 struct shash_node *node;
925 columns = json_array_create_empty();
926 SHASH_FOR_EACH (node, &ts->columns) {
927 const struct ovsdb_column *column = node->data;
929 if (strcmp(column->name, "_version")) {
930 json_array_add(columns, json_string_create(column->name));
934 op = json_object_create();
935 json_object_put_string(op, "op", "select");
936 json_object_put_string(op, "table", tables[i]->name);
937 json_object_put(op, "where", json_array_create_empty());
938 json_object_put(op, "columns", columns);
939 json_array_add(transaction, op);
942 /* Send request, get reply. */
943 request = jsonrpc_create_request("transact", transaction, NULL);
944 check_txn(jsonrpc_transact_block(rpc, request, &reply), &reply);
946 /* Print database contents. */
947 if (reply->result->type != JSON_ARRAY
948 || reply->result->u.array.n != n_tables) {
949 ovs_fatal(0, "reply is not array of %zu elements: %s",
950 n_tables, json_to_string(reply->result, 0));
952 for (i = 0; i < n_tables; i++) {
953 const struct ovsdb_table_schema *ts = tables[i]->data;
954 const struct json *op_result = reply->result->u.array.elems[i];
957 if (op_result->type != JSON_OBJECT
958 || !(rows = shash_find_data(json_object(op_result), "rows"))
959 || rows->type != JSON_ARRAY) {
960 ovs_fatal(0, "%s table reply is not an object with a \"rows\" "
962 ts->name, json_to_string(op_result, 0));
965 dump_table(ts, &rows->u.array);
968 jsonrpc_msg_destroy(reply);
970 ovsdb_schema_destroy(schema);
974 do_help(struct jsonrpc *rpc OVS_UNUSED, const char *database OVS_UNUSED,
975 int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
980 /* All command handlers (except for "help") are expected to take an optional
981 * server socket name (e.g. "unix:...") as their first argument. The socket
982 * name argument must be included in max_args (but left out of min_args). The
983 * command name and socket name are not included in the arguments passed to the
984 * handler: the argv[0] passed to the handler is the first argument after the
985 * optional server socket name. The connection to the server is available as
986 * global variable 'rpc'. */
987 static const struct ovsdb_client_command all_commands[] = {
988 { "list-dbs", NEED_RPC, 0, 0, do_list_dbs },
989 { "get-schema", NEED_DATABASE, 0, 0, do_get_schema },
990 { "get-schema-version", NEED_DATABASE, 0, 0, do_get_schema_version },
991 { "list-tables", NEED_DATABASE, 0, 0, do_list_tables },
992 { "list-columns", NEED_DATABASE, 0, 1, do_list_columns },
993 { "transact", NEED_RPC, 1, 1, do_transact },
994 { "monitor", NEED_DATABASE, 1, INT_MAX, do_monitor },
995 { "dump", NEED_DATABASE, 0, 0, do_dump },
997 { "help", NEED_NONE, 0, INT_MAX, do_help },
999 { NULL, 0, 0, 0, NULL },