1 /* Copyright (c) 2009, 2010 Nicira Networks
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.
26 #include "command-line.h"
31 #include "jsonrpc-server.h"
32 #include "leak-checker.h"
34 #include "ovsdb-data.h"
35 #include "ovsdb-types.h"
36 #include "ovsdb-error.h"
37 #include "poll-loop.h"
40 #include "stream-ssl.h"
50 #define THIS_MODULE VLM_ovsdb_server
52 static unixctl_cb_func ovsdb_server_exit;
54 static void parse_options(int argc, char *argv[], char **file_namep,
55 struct shash *remotes, char **unixctl_pathp,
57 static void usage(void) NO_RETURN;
59 static void set_remotes(struct ovsdb_jsonrpc_server *jsonrpc,
60 const struct ovsdb *db, struct shash *remotes);
63 main(int argc, char *argv[])
65 char *unixctl_path = NULL;
66 char *run_command = NULL;
67 struct unixctl_server *unixctl;
68 struct ovsdb_jsonrpc_server *jsonrpc;
70 struct ovsdb_error *error;
72 struct process *run_process;
77 proctitle_init(argc, argv);
78 set_program_name(argv[0]);
81 signal(SIGPIPE, SIG_IGN);
84 parse_options(argc, argv, &file_name, &remotes, &unixctl_path,
87 die_if_already_running();
90 error = ovsdb_file_open(file_name, false, &db);
92 ovs_fatal(0, "%s", ovsdb_error_to_string(error));
95 jsonrpc = ovsdb_jsonrpc_server_create(db);
96 set_remotes(jsonrpc, db, &remotes);
98 retval = unixctl_server_create(unixctl_path, &unixctl);
106 run_argv[0] = "/bin/sh";
108 run_argv[2] = run_command;
111 retval = process_start(run_argv, NULL, 0, NULL, 0, &run_process);
113 ovs_fatal(retval, "%s: process failed to start", run_command);
119 daemonize_complete();
121 unixctl_command_register("exit", ovsdb_server_exit, &exiting);
125 set_remotes(jsonrpc, db, &remotes);
126 ovsdb_jsonrpc_server_run(jsonrpc);
127 unixctl_server_run(unixctl);
128 ovsdb_trigger_run(db, time_msec());
129 if (run_process && process_exited(run_process)) {
133 ovsdb_jsonrpc_server_wait(jsonrpc);
134 unixctl_server_wait(unixctl);
135 ovsdb_trigger_wait(db, time_msec());
137 process_wait(run_process);
141 ovsdb_jsonrpc_server_destroy(jsonrpc);
143 shash_destroy(&remotes);
144 unixctl_server_destroy(unixctl);
146 if (run_process && process_exited(run_process)) {
147 int status = process_status(run_process);
149 ovs_fatal(0, "%s: child exited, %s",
150 run_command, process_status_msg(status));
158 query_db_remotes(const char *name_, const struct ovsdb *db,
159 struct shash *remotes)
161 char *name, *table_name, *column_name;
162 const struct ovsdb_column *column;
163 const struct ovsdb_table *table;
164 const struct ovsdb_row *row;
165 char *save_ptr = NULL;
167 name = xstrdup(name_);
168 strtok_r(name, ":", &save_ptr); /* "db:" */
169 table_name = strtok_r(NULL, ",", &save_ptr);
170 column_name = strtok_r(NULL, ",", &save_ptr);
171 if (!table_name || !column_name) {
172 ovs_fatal(0, "remote \"%s\": invalid syntax", name_);
175 table = ovsdb_get_table(db, table_name);
177 ovs_fatal(0, "remote \"%s\": no table named %s", name_, table_name);
180 column = ovsdb_table_schema_get_column(table->schema, column_name);
182 ovs_fatal(0, "remote \"%s\": table \"%s\" has no column \"%s\"",
183 name_, table_name, column_name);
186 if (column->type.key.type != OVSDB_TYPE_STRING
187 || column->type.value.type != OVSDB_TYPE_VOID) {
188 ovs_fatal(0, "remote \"%s\": type of table \"%s\" column \"%s\" is "
189 "not string or set of strings",
190 name_, table_name, column_name);
193 HMAP_FOR_EACH (row, struct ovsdb_row, hmap_node, &table->rows) {
194 const struct ovsdb_datum *datum;
197 datum = &row->fields[column->index];
198 for (i = 0; i < datum->n; i++) {
199 shash_add_once(remotes, datum->keys[i].string, NULL);
207 set_remotes(struct ovsdb_jsonrpc_server *jsonrpc,
208 const struct ovsdb *db, struct shash *remotes)
210 struct shash resolved_remotes;
211 struct shash_node *node;
213 shash_init(&resolved_remotes);
214 SHASH_FOR_EACH (node, remotes) {
215 const char *name = node->name;
217 if (!strncmp(name, "db:", 3)) {
218 query_db_remotes(name, db, &resolved_remotes);
220 shash_add_once(&resolved_remotes, name, NULL);
223 ovsdb_jsonrpc_server_set_remotes(jsonrpc, &resolved_remotes);
224 shash_destroy(&resolved_remotes);
229 ovsdb_server_exit(struct unixctl_conn *conn, const char *args OVS_UNUSED,
232 bool *exiting = exiting_;
234 unixctl_command_reply(conn, 200, NULL);
238 parse_options(int argc, char *argv[], char **file_namep,
239 struct shash *remotes, char **unixctl_pathp,
243 OPT_DUMMY = UCHAR_MAX + 1,
247 OPT_BOOTSTRAP_CA_CERT,
249 LEAK_CHECKER_OPTION_ENUMS
251 static struct option long_options[] = {
252 {"remote", required_argument, 0, OPT_REMOTE},
253 {"unixctl", required_argument, 0, OPT_UNIXCTL},
254 {"run", required_argument, 0, OPT_RUN},
255 {"help", no_argument, 0, 'h'},
256 {"version", no_argument, 0, 'V'},
259 LEAK_CHECKER_LONG_OPTIONS,
261 {"bootstrap-ca-cert", required_argument, 0, OPT_BOOTSTRAP_CA_CERT},
262 STREAM_SSL_LONG_OPTIONS
266 char *short_options = long_options_to_short_options(long_options);
272 c = getopt_long(argc, argv, short_options, long_options, NULL);
279 shash_add_once(remotes, optarg, NULL);
283 *unixctl_pathp = optarg;
287 *run_command = optarg;
294 OVS_PRINT_VERSION(0, 0);
298 DAEMON_OPTION_HANDLERS
299 LEAK_CHECKER_OPTION_HANDLERS
302 STREAM_SSL_OPTION_HANDLERS
304 case OPT_BOOTSTRAP_CA_CERT:
305 stream_ssl_set_ca_cert_file(optarg, true);
323 ovs_fatal(0, "database file is only non-option argument; "
324 "use --help for usage");
325 } else if (argc < 1) {
326 ovs_fatal(0, "missing database file argument; use --help for usage");
329 *file_namep = argv[0];
335 printf("%s: Open vSwitch database server\n"
336 "usage: %s [OPTIONS] DATABASE\n"
337 "where DATABASE is a database file in ovsdb format.\n",
338 program_name, program_name);
339 printf("\nJSON-RPC options (may be specified any number of times):\n"
340 " --remote=REMOTE connect or listen to REMOTE\n");
341 stream_usage("JSON-RPC", true, true, true);
344 printf("\nOther options:\n"
345 " --run COMMAND run COMMAND as subprocess then exit\n"
346 " -h, --help display this help message\n"
347 " -V, --version display version information\n");
348 leak_checker_usage();