1 /* Copyright (c) 2015 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.
18 #include "ovn-controller.h"
26 #include "command-line.h"
30 #include "openvswitch/vconn.h"
31 #include "openvswitch/vlog.h"
32 #include "ovn/lib/ovn-sb-idl.h"
33 #include "poll-loop.h"
34 #include "fatal-signal.h"
35 #include "lib/vswitch-idl.h"
38 #include "stream-ssl.h"
49 VLOG_DEFINE_THIS_MODULE(main);
51 static unixctl_cb_func ovn_controller_exit;
53 #define DEFAULT_BRIDGE_NAME "br-int"
55 static void parse_options(int argc, char *argv[]);
56 OVS_NO_RETURN static void usage(void);
58 static char *ovs_remote;
60 static const struct ovsrec_bridge *
61 get_br_int(struct ovsdb_idl *ovs_idl)
63 const struct ovsrec_open_vswitch *cfg = ovsrec_open_vswitch_first(ovs_idl);
68 const char *br_int_name = smap_get(&cfg->external_ids, "ovn-bridge");
70 br_int_name = DEFAULT_BRIDGE_NAME;
73 const struct ovsrec_bridge *br;
74 OVSREC_BRIDGE_FOR_EACH (br, ovs_idl) {
75 if (!strcmp(br->name, br_int_name)) {
80 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
81 VLOG_WARN_RL(&rl, "%s: integration bridge does not exist", br_int_name);
86 get_chassis_id(const struct ovsdb_idl *ovs_idl)
88 const struct ovsrec_open_vswitch *cfg = ovsrec_open_vswitch_first(ovs_idl);
89 return cfg ? smap_get(&cfg->external_ids, "system-id") : NULL;
92 /* Retrieves the OVN Southbound remote location from the
93 * "external-ids:ovn-remote" key in 'ovs_idl' and returns a copy of it.
95 * XXX ovn-controller does not support this changing mid-run, but that should
96 * be addressed later. */
98 get_ovnsb_remote(struct ovsdb_idl *ovs_idl)
101 ovsdb_idl_run(ovs_idl);
103 const struct ovsrec_open_vswitch *cfg
104 = ovsrec_open_vswitch_first(ovs_idl);
106 const char *remote = smap_get(&cfg->external_ids, "ovn-remote");
108 return xstrdup(remote);
112 VLOG_INFO("OVN OVSDB remote not specified. Waiting...");
113 ovsdb_idl_wait(ovs_idl);
119 main(int argc, char *argv[])
121 struct unixctl_server *unixctl;
125 ovs_cmdl_proctitle_init(argc, argv);
126 set_program_name(argv[0]);
127 service_start(&argc, &argv);
128 parse_options(argc, argv);
129 fatal_ignore_sigpipe();
133 retval = unixctl_server_create(NULL, &unixctl);
137 unixctl_command_register("exit", "", 0, 0, ovn_controller_exit, &exiting);
139 daemonize_complete();
147 /* Connect to OVS OVSDB instance. We do not monitor all tables by
148 * default, so modules must register their interest explicitly. */
149 struct ovsdb_idl_loop ovs_idl_loop = OVSDB_IDL_LOOP_INITIALIZER(
150 ovsdb_idl_create(ovs_remote, &ovsrec_idl_class, false, true));
151 ovsdb_idl_add_table(ovs_idl_loop.idl, &ovsrec_table_open_vswitch);
152 ovsdb_idl_add_column(ovs_idl_loop.idl,
153 &ovsrec_open_vswitch_col_external_ids);
154 chassis_register_ovs_idl(ovs_idl_loop.idl);
155 encaps_register_ovs_idl(ovs_idl_loop.idl);
156 binding_register_ovs_idl(ovs_idl_loop.idl);
157 physical_register_ovs_idl(ovs_idl_loop.idl);
158 ovsdb_idl_get_initial_snapshot(ovs_idl_loop.idl);
160 /* Connect to OVN SB database. */
161 char *ovnsb_remote = get_ovnsb_remote(ovs_idl_loop.idl);
162 struct ovsdb_idl_loop ovnsb_idl_loop = OVSDB_IDL_LOOP_INITIALIZER(
163 ovsdb_idl_create(ovnsb_remote, &sbrec_idl_class, true, true));
164 ovsdb_idl_get_initial_snapshot(ovnsb_idl_loop.idl);
169 struct controller_ctx ctx = {
170 .ovs_idl = ovs_idl_loop.idl,
171 .ovs_idl_txn = ovsdb_idl_loop_run(&ovs_idl_loop),
172 .ovnsb_idl = ovnsb_idl_loop.idl,
173 .ovnsb_idl_txn = ovsdb_idl_loop_run(&ovnsb_idl_loop),
176 const struct ovsrec_bridge *br_int = get_br_int(ctx.ovs_idl);
177 const char *chassis_id = get_chassis_id(ctx.ovs_idl);
180 chassis_run(&ctx, chassis_id);
181 encaps_run(&ctx, br_int, chassis_id);
182 binding_run(&ctx, br_int, chassis_id);
186 enum mf_field_id mff_ovn_geneve = ofctrl_run(br_int);
188 struct hmap flow_table = HMAP_INITIALIZER(&flow_table);
189 lflow_run(&ctx, &flow_table);
191 physical_run(&ctx, mff_ovn_geneve,
192 br_int, chassis_id, &flow_table);
194 ofctrl_put(&flow_table);
195 hmap_destroy(&flow_table);
198 unixctl_server_run(unixctl);
200 unixctl_server_wait(unixctl);
202 poll_immediate_wake();
205 ovsdb_idl_loop_commit_and_wait(&ovnsb_idl_loop);
206 ovsdb_idl_loop_commit_and_wait(&ovs_idl_loop);
212 if (should_service_stop()) {
217 /* It's time to exit. Clean up the databases. */
220 struct controller_ctx ctx = {
221 .ovs_idl = ovs_idl_loop.idl,
222 .ovs_idl_txn = ovsdb_idl_loop_run(&ovs_idl_loop),
223 .ovnsb_idl = ovnsb_idl_loop.idl,
224 .ovnsb_idl_txn = ovsdb_idl_loop_run(&ovnsb_idl_loop),
227 const struct ovsrec_bridge *br_int = get_br_int(ctx.ovs_idl);
228 const char *chassis_id = get_chassis_id(ctx.ovs_idl);
230 /* Run all of the cleanup functions, even if one of them returns false.
231 * We're done if all of them return true. */
232 done = binding_cleanup(&ctx, chassis_id);
233 done = chassis_cleanup(&ctx, chassis_id) && done;
234 done = encaps_cleanup(&ctx, br_int) && done;
236 poll_immediate_wake();
239 ovsdb_idl_loop_commit_and_wait(&ovnsb_idl_loop);
240 ovsdb_idl_loop_commit_and_wait(&ovs_idl_loop);
244 unixctl_server_destroy(unixctl);
248 ovsdb_idl_loop_destroy(&ovs_idl_loop);
249 ovsdb_idl_loop_destroy(&ovnsb_idl_loop);
259 parse_options(int argc, char *argv[])
262 OPT_PEER_CA_CERT = UCHAR_MAX + 1,
267 static struct option long_options[] = {
268 {"help", no_argument, NULL, 'h'},
269 {"version", no_argument, NULL, 'V'},
272 STREAM_SSL_LONG_OPTIONS,
273 {"peer-ca-cert", required_argument, NULL, OPT_PEER_CA_CERT},
276 char *short_options = ovs_cmdl_long_options_to_short_options(long_options);
281 c = getopt_long(argc, argv, short_options, long_options, NULL);
291 ovs_print_version(OFP13_VERSION, OFP13_VERSION);
295 DAEMON_OPTION_HANDLERS
296 STREAM_SSL_OPTION_HANDLERS
298 case OPT_PEER_CA_CERT:
299 stream_ssl_set_peer_ca_cert_file(optarg);
315 ovs_remote = xasprintf("unix:%s/db.sock", ovs_rundir());
316 } else if (argc == 1) {
317 ovs_remote = xstrdup(argv[0]);
319 VLOG_FATAL("exactly zero or one non-option argument required; "
320 "use --help for usage");
327 printf("%s: OVN controller\n"
328 "usage %s [OPTIONS] [OVS-DATABASE]\n"
329 "where OVS-DATABASE is a socket on which the OVS OVSDB server is listening.\n",
330 program_name, program_name);
331 stream_usage("OVS-DATABASE", true, false, false);
334 printf("\nOther options:\n"
335 " -h, --help display this help message\n"
336 " -V, --version display version information\n");
341 ovn_controller_exit(struct unixctl_conn *conn, int argc OVS_UNUSED,
342 const char *argv[] OVS_UNUSED, void *exiting_)
344 bool *exiting = exiting_;
347 unixctl_command_reply(conn, NULL);