/* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include #include #include #include #include #include #include #ifdef HAVE_MLOCKALL #include #endif #include "bridge.h" #include "command-line.h" #include "compiler.h" #include "daemon.h" #include "dirs.h" #include "dpif.h" #include "dummy.h" #include "fatal-signal.h" #include "memory.h" #include "netdev.h" #include "openflow/openflow.h" #include "ovsdb-idl.h" #include "poll-loop.h" #include "simap.h" #include "stream-ssl.h" #include "stream.h" #include "svec.h" #include "timeval.h" #include "unixctl.h" #include "util.h" #include "openvswitch/vconn.h" #include "openvswitch/vlog.h" #include "lib/vswitch-idl.h" #include "lib/netdev-dpdk.h" VLOG_DEFINE_THIS_MODULE(vswitchd); /* --mlockall: If set, locks all process memory into physical RAM, preventing * the kernel from paging any of its memory to disk. */ static bool want_mlockall; static unixctl_cb_func ovs_vswitchd_exit; static char *parse_options(int argc, char *argv[], char **unixctl_path); OVS_NO_RETURN static void usage(void); int main(int argc, char *argv[]) { char *unixctl_path = NULL; struct unixctl_server *unixctl; char *remote; bool exiting; int retval; set_program_name(argv[0]); retval = dpdk_init(argc,argv); argc -= retval; argv += retval; ovs_cmdl_proctitle_init(argc, argv); service_start(&argc, &argv); remote = parse_options(argc, argv, &unixctl_path); fatal_ignore_sigpipe(); ovsrec_init(); daemonize_start(); if (want_mlockall) { #ifdef HAVE_MLOCKALL if (mlockall(MCL_CURRENT | MCL_FUTURE)) { VLOG_ERR("mlockall failed: %s", ovs_strerror(errno)); } #else VLOG_ERR("mlockall not supported on this system"); #endif } retval = unixctl_server_create(unixctl_path, &unixctl); if (retval) { exit(EXIT_FAILURE); } unixctl_command_register("exit", "", 0, 0, ovs_vswitchd_exit, &exiting); bridge_init(remote); free(remote); exiting = false; while (!exiting) { memory_run(); if (memory_should_report()) { struct simap usage; simap_init(&usage); bridge_get_memory_usage(&usage); memory_report(&usage); simap_destroy(&usage); } bridge_run(); unixctl_server_run(unixctl); netdev_run(); memory_wait(); bridge_wait(); unixctl_server_wait(unixctl); netdev_wait(); if (exiting) { poll_immediate_wake(); } poll_block(); if (should_service_stop()) { exiting = true; } } bridge_exit(); unixctl_server_destroy(unixctl); service_stop(); return 0; } static char * parse_options(int argc, char *argv[], char **unixctl_pathp) { enum { OPT_PEER_CA_CERT = UCHAR_MAX + 1, OPT_MLOCKALL, OPT_UNIXCTL, VLOG_OPTION_ENUMS, OPT_BOOTSTRAP_CA_CERT, OPT_ENABLE_DUMMY, OPT_DISABLE_SYSTEM, DAEMON_OPTION_ENUMS, OPT_DPDK, }; static const struct option long_options[] = { {"help", no_argument, NULL, 'h'}, {"version", no_argument, NULL, 'V'}, {"mlockall", no_argument, NULL, OPT_MLOCKALL}, {"unixctl", required_argument, NULL, OPT_UNIXCTL}, DAEMON_LONG_OPTIONS, VLOG_LONG_OPTIONS, STREAM_SSL_LONG_OPTIONS, {"peer-ca-cert", required_argument, NULL, OPT_PEER_CA_CERT}, {"bootstrap-ca-cert", required_argument, NULL, OPT_BOOTSTRAP_CA_CERT}, {"enable-dummy", optional_argument, NULL, OPT_ENABLE_DUMMY}, {"disable-system", no_argument, NULL, OPT_DISABLE_SYSTEM}, {"dpdk", required_argument, NULL, OPT_DPDK}, {NULL, 0, NULL, 0}, }; char *short_options = ovs_cmdl_long_options_to_short_options(long_options); for (;;) { int c; c = getopt_long(argc, argv, short_options, long_options, NULL); if (c == -1) { break; } switch (c) { case 'h': usage(); case 'V': ovs_print_version(0, 0); exit(EXIT_SUCCESS); case OPT_MLOCKALL: want_mlockall = true; break; case OPT_UNIXCTL: *unixctl_pathp = optarg; break; VLOG_OPTION_HANDLERS DAEMON_OPTION_HANDLERS STREAM_SSL_OPTION_HANDLERS case OPT_PEER_CA_CERT: stream_ssl_set_peer_ca_cert_file(optarg); break; case OPT_BOOTSTRAP_CA_CERT: stream_ssl_set_ca_cert_file(optarg, true); break; case OPT_ENABLE_DUMMY: dummy_enable(optarg && !strcmp(optarg, "override")); break; case OPT_DISABLE_SYSTEM: dp_blacklist_provider("system"); break; case '?': exit(EXIT_FAILURE); case OPT_DPDK: ovs_fatal(0, "--dpdk must be given at beginning of command line."); break; default: abort(); } } free(short_options); argc -= optind; argv += optind; switch (argc) { case 0: return xasprintf("unix:%s/db.sock", ovs_rundir()); case 1: return xstrdup(argv[0]); default: VLOG_FATAL("at most one non-option argument accepted; " "use --help for usage"); } } static void usage(void) { printf("%s: Open vSwitch daemon\n" "usage: %s [OPTIONS] [DATABASE]\n" "where DATABASE is a socket on which ovsdb-server is listening\n" " (default: \"unix:%s/db.sock\").\n", program_name, program_name, ovs_rundir()); stream_usage("DATABASE", true, false, true); daemon_usage(); vlog_usage(); printf("\nDPDK options:\n" " --dpdk options Initialize DPDK datapath.\n" " --cuse_dev_name BASENAME override default character device name\n" " for use with userspace vHost.\n"); printf("\nOther options:\n" " --unixctl=SOCKET override default control socket name\n" " -h, --help display this help message\n" " -V, --version display version information\n"); exit(EXIT_SUCCESS); } static void ovs_vswitchd_exit(struct unixctl_conn *conn, int argc OVS_UNUSED, const char *argv[] OVS_UNUSED, void *exiting_) { bool *exiting = exiting_; *exiting = true; unixctl_command_reply(conn, NULL); }