+++ /dev/null
-/*
- * Copyright (c) 2008, 2009 Nicira Networks.
- *
- * 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 <config.h>
-#include <assert.h>
-#include <errno.h>
-#include <getopt.h>
-#include <inttypes.h>
-#include <netinet/in.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <string.h>
-
-#include "command-line.h"
-#include "compiler.h"
-#include "daemon.h"
-#include "dirs.h"
-#include "discovery.h"
-#include "dpif.h"
-#include "fail-open.h"
-#include "fault.h"
-#include "in-band.h"
-#include "leak-checker.h"
-#include "list.h"
-#include "netdev.h"
-#include "ofpbuf.h"
-#include "ofproto.h"
-#include "openflow/openflow.h"
-#include "packets.h"
-#include "poll-loop.h"
-#include "rconn.h"
-#include "status.h"
-#include "svec.h"
-#include "timeval.h"
-#include "unixctl.h"
-#include "util.h"
-#include "vconn-ssl.h"
-#include "vconn.h"
-
-#include "vlog.h"
-#define THIS_MODULE VLM_secchan
-
-/* Behavior when the connection to the controller fails. */
-enum fail_mode {
- FAIL_OPEN, /* Act as learning switch. */
- FAIL_CLOSED /* Drop all packets. */
-};
-
-/* Settings that may be configured by the user. */
-struct ofsettings {
- /* Overall mode of operation. */
- bool discovery; /* Discover the controller automatically? */
- bool in_band; /* Connect to controller in-band? */
-
- /* Datapath. */
- uint64_t datapath_id; /* Datapath ID. */
- const char *dp_name; /* Name of local datapath. */
-
- /* Description strings. */
- const char *mfr_desc; /* Manufacturer. */
- const char *hw_desc; /* Hardware. */
- const char *sw_desc; /* Software version. */
- const char *serial_desc; /* Serial number. */
-
- /* Related vconns and network devices. */
- const char *controller_name; /* Controller (if not discovery mode). */
- struct svec listeners; /* Listen for management connections. */
- struct svec snoops; /* Listen for controller snooping conns. */
-
- /* Failure behavior. */
- enum fail_mode fail_mode; /* Act as learning switch if no controller? */
- int max_idle; /* Idle time for flows in fail-open mode. */
- int probe_interval; /* # seconds idle before sending echo request. */
- int max_backoff; /* Max # seconds between connection attempts. */
-
- /* Packet-in rate-limiting. */
- int rate_limit; /* Tokens added to bucket per second. */
- int burst_limit; /* Maximum number token bucket size. */
-
- /* Discovery behavior. */
- const char *accept_controller_re; /* Controller vconns to accept. */
- bool update_resolv_conf; /* Update /etc/resolv.conf? */
-
- /* Spanning tree protocol. */
- bool enable_stp;
-
- /* Remote command execution. */
- char *command_acl; /* Command white/blacklist, as shell globs. */
- char *command_dir; /* Directory that contains commands. */
-
- /* Management. */
- uint64_t mgmt_id; /* Management ID. */
-
- /* NetFlow. */
- struct svec netflow; /* NetFlow targets. */
-};
-
-static void parse_options(int argc, char *argv[], struct ofsettings *);
-static void usage(void) NO_RETURN;
-
-int
-main(int argc, char *argv[])
-{
- struct unixctl_server *unixctl;
- struct ofproto *ofproto;
- struct ofsettings s;
- int error;
-
- set_program_name(argv[0]);
- register_fault_handlers();
- time_init();
- vlog_init();
- parse_options(argc, argv, &s);
- signal(SIGPIPE, SIG_IGN);
-
- die_if_already_running();
- daemonize();
-
- /* Start listening for ovs-appctl requests. */
- error = unixctl_server_create(NULL, &unixctl);
- if (error) {
- ovs_fatal(error, "Could not listen for unixctl connections");
- }
-
- VLOG_INFO("Open vSwitch version %s", VERSION BUILDNR);
- VLOG_INFO("OpenFlow protocol version 0x%02x", OFP_VERSION);
-
- /* Start OpenFlow processing. */
- error = ofproto_create(s.dp_name, NULL, NULL, &ofproto);
- if (error) {
- ovs_fatal(error, "could not initialize openflow switch");
- }
- error = ofproto_set_in_band(ofproto, s.in_band);
- if (error) {
- ovs_fatal(error, "failed to configure in-band control");
- }
- error = ofproto_set_discovery(ofproto, s.discovery, s.accept_controller_re,
- s.update_resolv_conf);
- if (error) {
- ovs_fatal(error, "failed to configure controller discovery");
- }
- if (s.datapath_id) {
- ofproto_set_datapath_id(ofproto, s.datapath_id);
- }
- if (s.mgmt_id) {
- ofproto_set_mgmt_id(ofproto, s.mgmt_id);
- }
- ofproto_set_desc(ofproto, s.mfr_desc, s.hw_desc, s.sw_desc, s.serial_desc);
- error = ofproto_set_listeners(ofproto, &s.listeners);
- if (error) {
- ovs_fatal(error, "failed to configure management connections");
- }
- error = ofproto_set_snoops(ofproto, &s.snoops);
- if (error) {
- ovs_fatal(error,
- "failed to configure controller snooping connections");
- }
- error = ofproto_set_netflow(ofproto, &s.netflow, 0, 0, false);
- if (error) {
- ovs_fatal(error, "failed to configure NetFlow collectors");
- }
- ofproto_set_failure(ofproto, s.fail_mode == FAIL_OPEN);
- ofproto_set_probe_interval(ofproto, s.probe_interval);
- ofproto_set_max_backoff(ofproto, s.max_backoff);
- ofproto_set_rate_limit(ofproto, s.rate_limit, s.burst_limit);
- error = ofproto_set_stp(ofproto, s.enable_stp);
- if (error) {
- ovs_fatal(error, "failed to configure STP");
- }
- error = ofproto_set_remote_execution(ofproto, s.command_acl,
- s.command_dir);
- if (error) {
- ovs_fatal(error, "failed to configure remote command execution");
- }
- if (!s.discovery) {
- error = ofproto_set_controller(ofproto, s.controller_name);
- if (error) {
- ovs_fatal(error, "failed to configure controller");
- }
- }
-
- while (ofproto_is_alive(ofproto)) {
- error = ofproto_run(ofproto);
- if (error) {
- ovs_fatal(error, "unrecoverable datapath error");
- }
- unixctl_server_run(unixctl);
- dp_run();
-
- ofproto_wait(ofproto);
- unixctl_server_wait(unixctl);
- dp_wait();
- poll_block();
- }
-
- return 0;
-}
-\f
-/* User interface. */
-
-static void
-parse_options(int argc, char *argv[], struct ofsettings *s)
-{
- enum {
- OPT_DATAPATH_ID = UCHAR_MAX + 1,
- OPT_MANUFACTURER,
- OPT_HARDWARE,
- OPT_SOFTWARE,
- OPT_SERIAL,
- OPT_ACCEPT_VCONN,
- OPT_NO_RESOLV_CONF,
- OPT_BR_NAME,
- OPT_FAIL_MODE,
- OPT_INACTIVITY_PROBE,
- OPT_MAX_IDLE,
- OPT_MAX_BACKOFF,
- OPT_SNOOP,
- OPT_RATE_LIMIT,
- OPT_BURST_LIMIT,
- OPT_BOOTSTRAP_CA_CERT,
- OPT_STP,
- OPT_NO_STP,
- OPT_OUT_OF_BAND,
- OPT_IN_BAND,
- OPT_COMMAND_ACL,
- OPT_COMMAND_DIR,
- OPT_NETFLOW,
- OPT_MGMT_ID,
- VLOG_OPTION_ENUMS,
- LEAK_CHECKER_OPTION_ENUMS
- };
- static struct option long_options[] = {
- {"datapath-id", required_argument, 0, OPT_DATAPATH_ID},
- {"manufacturer", required_argument, 0, OPT_MANUFACTURER},
- {"hardware", required_argument, 0, OPT_HARDWARE},
- {"software", required_argument, 0, OPT_SOFTWARE},
- {"serial", required_argument, 0, OPT_SERIAL},
- {"accept-vconn", required_argument, 0, OPT_ACCEPT_VCONN},
- {"no-resolv-conf", no_argument, 0, OPT_NO_RESOLV_CONF},
- {"config", required_argument, 0, 'F'},
- {"br-name", required_argument, 0, OPT_BR_NAME},
- {"fail", required_argument, 0, OPT_FAIL_MODE},
- {"inactivity-probe", required_argument, 0, OPT_INACTIVITY_PROBE},
- {"max-idle", required_argument, 0, OPT_MAX_IDLE},
- {"max-backoff", required_argument, 0, OPT_MAX_BACKOFF},
- {"listen", required_argument, 0, 'l'},
- {"snoop", required_argument, 0, OPT_SNOOP},
- {"rate-limit", optional_argument, 0, OPT_RATE_LIMIT},
- {"burst-limit", required_argument, 0, OPT_BURST_LIMIT},
- {"stp", no_argument, 0, OPT_STP},
- {"no-stp", no_argument, 0, OPT_NO_STP},
- {"out-of-band", no_argument, 0, OPT_OUT_OF_BAND},
- {"in-band", no_argument, 0, OPT_IN_BAND},
- {"command-acl", required_argument, 0, OPT_COMMAND_ACL},
- {"command-dir", required_argument, 0, OPT_COMMAND_DIR},
- {"netflow", required_argument, 0, OPT_NETFLOW},
- {"mgmt-id", required_argument, 0, OPT_MGMT_ID},
- {"verbose", optional_argument, 0, 'v'},
- {"help", no_argument, 0, 'h'},
- {"version", no_argument, 0, 'V'},
- DAEMON_LONG_OPTIONS,
- VLOG_LONG_OPTIONS,
- LEAK_CHECKER_LONG_OPTIONS,
-#ifdef HAVE_OPENSSL
- VCONN_SSL_LONG_OPTIONS
- {"bootstrap-ca-cert", required_argument, 0, OPT_BOOTSTRAP_CA_CERT},
-#endif
- {0, 0, 0, 0},
- };
- char *short_options = long_options_to_short_options(long_options);
-
- /* Set defaults that we can figure out before parsing options. */
- s->datapath_id = 0;
- s->mfr_desc = NULL;
- s->hw_desc = NULL;
- s->sw_desc = NULL;
- s->serial_desc = NULL;
- svec_init(&s->listeners);
- svec_init(&s->snoops);
- s->fail_mode = FAIL_OPEN;
- s->max_idle = 0;
- s->probe_interval = 0;
- s->max_backoff = 15;
- s->update_resolv_conf = true;
- s->rate_limit = 0;
- s->burst_limit = 0;
- s->accept_controller_re = NULL;
- s->enable_stp = false;
- s->in_band = true;
- s->command_acl = "";
- s->command_dir = NULL;
- svec_init(&s->netflow);
- s->mgmt_id = 0;
- for (;;) {
- int c;
-
- c = getopt_long(argc, argv, short_options, long_options, NULL);
- if (c == -1) {
- break;
- }
-
- switch (c) {
- case OPT_DATAPATH_ID:
- if (strlen(optarg) != 12
- || strspn(optarg, "0123456789abcdefABCDEF") != 12) {
- ovs_fatal(0, "argument to --datapath-id must be "
- "exactly 12 hex digits");
- }
- s->datapath_id = strtoll(optarg, NULL, 16);
- if (!s->datapath_id) {
- ovs_fatal(0, "argument to --datapath-id must be nonzero");
- }
- break;
-
- case OPT_MANUFACTURER:
- s->mfr_desc = optarg;
- break;
-
- case OPT_HARDWARE:
- s->hw_desc = optarg;
- break;
-
- case OPT_SOFTWARE:
- s->sw_desc = optarg;
- break;
-
- case OPT_SERIAL:
- s->serial_desc = optarg;
- break;
-
- case OPT_ACCEPT_VCONN:
- s->accept_controller_re = optarg;
- break;
-
- case OPT_NO_RESOLV_CONF:
- s->update_resolv_conf = false;
- break;
-
- case OPT_FAIL_MODE:
- if (!strcmp(optarg, "open")) {
- s->fail_mode = FAIL_OPEN;
- } else if (!strcmp(optarg, "closed")) {
- s->fail_mode = FAIL_CLOSED;
- } else {
- ovs_fatal(0, "-f or --fail argument must be \"open\" "
- "or \"closed\"");
- }
- break;
-
- case OPT_INACTIVITY_PROBE:
- s->probe_interval = atoi(optarg);
- if (s->probe_interval < 5) {
- ovs_fatal(0, "--inactivity-probe argument must be at least 5");
- }
- break;
-
- case OPT_MAX_IDLE:
- if (!strcmp(optarg, "permanent")) {
- s->max_idle = OFP_FLOW_PERMANENT;
- } else {
- s->max_idle = atoi(optarg);
- if (s->max_idle < 1 || s->max_idle > 65535) {
- ovs_fatal(0, "--max-idle argument must be between 1 and "
- "65535 or the word 'permanent'");
- }
- }
- break;
-
- case OPT_MAX_BACKOFF:
- s->max_backoff = atoi(optarg);
- if (s->max_backoff < 1) {
- ovs_fatal(0, "--max-backoff argument must be at least 1");
- } else if (s->max_backoff > 3600) {
- s->max_backoff = 3600;
- }
- break;
-
- case OPT_RATE_LIMIT:
- if (optarg) {
- s->rate_limit = atoi(optarg);
- if (s->rate_limit < 1) {
- ovs_fatal(0, "--rate-limit argument must be at least 1");
- }
- } else {
- s->rate_limit = 1000;
- }
- break;
-
- case OPT_BURST_LIMIT:
- s->burst_limit = atoi(optarg);
- if (s->burst_limit < 1) {
- ovs_fatal(0, "--burst-limit argument must be at least 1");
- }
- break;
-
- case OPT_STP:
- s->enable_stp = true;
- break;
-
- case OPT_NO_STP:
- s->enable_stp = false;
- break;
-
- case OPT_OUT_OF_BAND:
- s->in_band = false;
- break;
-
- case OPT_IN_BAND:
- s->in_band = true;
- break;
-
- case OPT_COMMAND_ACL:
- s->command_acl = (s->command_acl[0]
- ? xasprintf("%s,%s", s->command_acl, optarg)
- : optarg);
- break;
-
- case OPT_COMMAND_DIR:
- s->command_dir = optarg;
- break;
-
- case OPT_NETFLOW:
- svec_add(&s->netflow, optarg);
- break;
-
- case OPT_MGMT_ID:
- if (strlen(optarg) != 12
- || strspn(optarg, "0123456789abcdefABCDEF") != 12) {
- ovs_fatal(0, "argument to --mgmt-id must be "
- "exactly 12 hex digits");
- }
- s->mgmt_id = strtoll(optarg, NULL, 16);
- if (!s->mgmt_id) {
- ovs_fatal(0, "argument to --mgmt-id must be nonzero");
- }
- break;
-
- case 'l':
- svec_add(&s->listeners, optarg);
- break;
-
- case OPT_SNOOP:
- svec_add(&s->snoops, optarg);
- break;
-
- case 'h':
- usage();
-
- case 'V':
- OVS_PRINT_VERSION(OFP_VERSION, OFP_VERSION);
- exit(EXIT_SUCCESS);
-
- DAEMON_OPTION_HANDLERS
-
- VLOG_OPTION_HANDLERS
-
- LEAK_CHECKER_OPTION_HANDLERS
-
-#ifdef HAVE_OPENSSL
- VCONN_SSL_OPTION_HANDLERS
-
- case OPT_BOOTSTRAP_CA_CERT:
- vconn_ssl_set_ca_cert_file(optarg, true);
- break;
-#endif
-
- case '?':
- exit(EXIT_FAILURE);
-
- default:
- abort();
- }
- }
- free(short_options);
-
- argc -= optind;
- argv += optind;
- if (argc < 1 || argc > 2) {
- ovs_fatal(0, "need one or two non-option arguments; "
- "use --help for usage");
- }
-
- /* Local and remote vconns. */
- s->dp_name = argv[0];
- s->controller_name = argc > 1 ? xstrdup(argv[1]) : NULL;
-
- /* Set accept_controller_regex. */
- if (!s->accept_controller_re) {
- s->accept_controller_re
- = vconn_ssl_is_configured() ? "^ssl:.*" : "^tcp:.*";
- }
-
- /* Mode of operation. */
- s->discovery = s->controller_name == NULL;
- if (s->discovery && !s->in_band) {
- ovs_fatal(0, "Cannot perform discovery with out-of-band control");
- }
-
- /* Rate limiting. */
- if (s->rate_limit && s->rate_limit < 100) {
- VLOG_WARN("Rate limit set to unusually low value %d", s->rate_limit);
- }
-}
-
-static void
-usage(void)
-{
- printf("%s: an OpenFlow switch implementation.\n"
- "usage: %s [OPTIONS] DATAPATH [CONTROLLER]\n"
- "DATAPATH is a local datapath (e.g. \"dp0\").\n"
- "CONTROLLER is an active OpenFlow connection method; if it is\n"
- "omitted, then secchan performs controller discovery.\n",
- program_name, program_name);
- vconn_usage(true, true, true);
- printf("\nOpenFlow options:\n"
- " -d, --datapath-id=ID Use ID as the OpenFlow switch ID\n"
- " (ID must consist of 12 hex digits)\n"
- " --mgmt-id=ID Use ID as the management ID\n"
- " (ID must consist of 12 hex digits)\n"
- " --manufacturer=MFR Identify manufacturer as MFR\n"
- " --hardware=HW Identify hardware as HW\n"
- " --software=SW Identify software as SW\n"
- " --serial=SERIAL Identify serial number as SERIAL\n"
- "\nController discovery options:\n"
- " --accept-vconn=REGEX accept matching discovered controllers\n"
- " --no-resolv-conf do not update /etc/resolv.conf\n"
- "\nNetworking options:\n"
- " --fail=open|closed when controller connection fails:\n"
- " closed: drop all packets\n"
- " open (default): act as learning switch\n"
- " --inactivity-probe=SECS time between inactivity probes\n"
- " --max-idle=SECS max idle for flows set up by secchan\n"
- " --max-backoff=SECS max time between controller connection\n"
- " attempts (default: 15 seconds)\n"
- " -l, --listen=METHOD allow management connections on METHOD\n"
- " (a passive OpenFlow connection method)\n"
- " --snoop=METHOD allow controller snooping on METHOD\n"
- " (a passive OpenFlow connection method)\n"
- " --out-of-band controller connection is out-of-band\n"
- " --netflow=HOST:PORT configure NetFlow output target\n"
- "\nRate-limiting of \"packet-in\" messages to the controller:\n"
- " --rate-limit[=PACKETS] max rate, in packets/s (default: 1000)\n"
- " --burst-limit=BURST limit on packet credit for idle time\n"
- "\nRemote command execution options:\n"
- " --command-acl=[!]GLOB[,[!]GLOB...] set allowed/denied commands\n"
- " --command-dir=DIR set command dir (default: %s/commands)\n",
- ovs_pkgdatadir);
- daemon_usage();
- vlog_usage();
- printf("\nOther options:\n"
- " -h, --help display this help message\n"
- " -V, --version display version information\n");
- leak_checker_usage();
- exit(EXIT_SUCCESS);
-}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff