/*
- * Copyright (c) 2008, 2009 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <limits.h>
#include <signal.h>
#include <stdlib.h>
+#include <stdio.h>
#include <string.h>
#include "command-line.h"
#include "compiler.h"
#include "daemon.h"
-#include "fault.h"
#include "learning-switch.h"
+#include "ofp-parse.h"
#include "ofpbuf.h"
#include "openflow/openflow.h"
#include "poll-loop.h"
#include "rconn.h"
+#include "shash.h"
+#include "stream-ssl.h"
#include "timeval.h"
#include "unixctl.h"
#include "util.h"
-#include "vconn-ssl.h"
#include "vconn.h"
-
#include "vlog.h"
-#define THIS_MODULE VLM_controller
+
+VLOG_DEFINE_THIS_MODULE(controller);
#define MAX_SWITCHES 16
#define MAX_LISTENERS 16
struct rconn *rconn;
};
-/* Learn the ports on which MAC addresses appear? */
+/* -H, --hub: Learn the ports on which MAC addresses appear? */
static bool learn_macs = true;
-/* Set up flows? (If not, every packet is processed at the controller.) */
-static bool setup_flows = true;
+/* -n, --noflow: Set up flows? (If not, every packet is processed at the
+ * controller.) */
+static bool set_up_flows = true;
+
+/* -N, --normal: Use "NORMAL" action instead of explicit port? */
+static bool action_normal = false;
+
+/* -w, --wildcard: Set up exact match or wildcard flow entries? */
+static bool exact_flows = true;
/* --max-idle: Maximum idle time, in seconds, before flows expire. */
static int max_idle = 60;
+/* --mute: If true, accept connections from switches but do not reply to any
+ * of their messages (for debugging fail-open mode). */
+static bool mute = false;
+
+/* -q, --queue: default OpenFlow queue, none if UINT32_MAX. */
+static uint32_t default_queue = UINT32_MAX;
+
+/* -Q, --port-queue: map from port name to port number (cast to void *). */
+static struct shash port_queues = SHASH_INITIALIZER(&port_queues);
+
+/* --with-flows: Flows to send to switch, or an empty list not to send any
+ * default flows. */
+static struct list default_flows = LIST_INITIALIZER(&default_flows);
+
+/* --unixctl: Name of unixctl socket, or null to use the default. */
+static char *unixctl_path = NULL;
+
static int do_switching(struct switch_ *);
-static void new_switch(struct switch_ *, struct vconn *, const char *name);
+static void new_switch(struct switch_ *, struct vconn *);
static void parse_options(int argc, char *argv[]);
static void usage(void) NO_RETURN;
int retval;
int i;
+ proctitle_init(argc, argv);
set_program_name(argv[0]);
- register_fault_handlers();
- time_init();
- vlog_init();
parse_options(argc, argv);
signal(SIGPIPE, SIG_IGN);
for (i = optind; i < argc; i++) {
const char *name = argv[i];
struct vconn *vconn;
- int retval;
retval = vconn_open(name, OFP_VERSION, &vconn);
if (!retval) {
if (n_switches >= MAX_SWITCHES) {
ovs_fatal(0, "max %d switch connections", n_switches);
}
- new_switch(&switches[n_switches++], vconn, name);
+ new_switch(&switches[n_switches++], vconn);
continue;
} else if (retval == EAFNOSUPPORT) {
struct pvconn *pvconn;
ovs_fatal(0, "no active or passive switch connections");
}
- die_if_already_running();
- daemonize();
+ daemonize_start();
- retval = unixctl_server_create(NULL, &unixctl);
+ retval = unixctl_server_create(unixctl_path, &unixctl);
if (retval) {
- ovs_fatal(retval, "Could not listen for unixctl connections");
+ exit(EXIT_FAILURE);
}
+ daemonize_complete();
+
while (n_switches > 0 || n_listeners > 0) {
int iteration;
- int i;
/* Accept connections on listening vconns. */
for (i = 0; i < n_listeners && n_switches < MAX_SWITCHES; ) {
struct vconn *new_vconn;
- int retval;
retval = pvconn_accept(listeners[i], OFP_VERSION, &new_vconn);
if (!retval || retval == EAGAIN) {
if (!retval) {
- new_switch(&switches[n_switches++], new_vconn, "tcp");
+ new_switch(&switches[n_switches++], new_vconn);
}
i++;
} else {
bool progress = false;
for (i = 0; i < n_switches; ) {
struct switch_ *this = &switches[i];
- int retval = do_switching(this);
+
+ retval = do_switching(this);
if (!retval || retval == EAGAIN) {
if (!retval) {
progress = true;
}
for (i = 0; i < n_switches; i++) {
struct switch_ *this = &switches[i];
- lswitch_run(this->lswitch, this->rconn);
+ lswitch_run(this->lswitch);
}
unixctl_server_run(unixctl);
}
static void
-new_switch(struct switch_ *sw, struct vconn *vconn, const char *name)
+new_switch(struct switch_ *sw, struct vconn *vconn)
{
- sw->rconn = rconn_new_from_vconn(name, vconn);
- sw->lswitch = lswitch_create(sw->rconn, learn_macs,
- setup_flows ? max_idle : -1);
+ struct lswitch_config cfg;
+
+ sw->rconn = rconn_create(60, 0);
+ rconn_connect_unreliably(sw->rconn, vconn, NULL);
+
+ cfg.mode = (action_normal ? LSW_NORMAL
+ : learn_macs ? LSW_LEARN
+ : LSW_FLOOD);
+ cfg.max_idle = set_up_flows ? max_idle : -1;
+ cfg.default_flows = &default_flows;
+ cfg.default_queue = default_queue;
+ cfg.port_queues = &port_queues;
+ sw->lswitch = lswitch_create(sw->rconn, &cfg);
}
static int
msg = rconn_recv(sw->rconn);
if (msg) {
- lswitch_process_packet(sw->lswitch, sw->rconn, msg);
+ if (!mute) {
+ lswitch_process_packet(sw->lswitch, sw->rconn, msg);
+ }
ofpbuf_delete(msg);
}
rconn_run(sw->rconn);
: EAGAIN);
}
+static void
+read_flow_file(const char *name)
+{
+ enum nx_flow_format flow_format;
+ FILE *stream;
+
+ stream = fopen(optarg, "r");
+ if (!stream) {
+ ovs_fatal(errno, "%s: open", name);
+ }
+
+ flow_format = NXFF_OPENFLOW10;
+ while (parse_ofp_flow_mod_file(&default_flows, &flow_format, stream,
+ OFPFC_ADD)) {
+ continue;
+ }
+
+ fclose(stream);
+}
+
+static void
+add_port_queue(char *s)
+{
+ char *save_ptr = NULL;
+ char *port_name;
+ char *queue_id;
+
+ port_name = strtok_r(s, ":", &save_ptr);
+ queue_id = strtok_r(NULL, "", &save_ptr);
+ if (!queue_id) {
+ ovs_fatal(0, "argument to -Q or --port-queue should take the form "
+ "\"<port-name>:<queue-id>\"");
+ }
+
+ if (!shash_add_once(&port_queues, port_name,
+ (void *) (uintptr_t) atoi(queue_id))) {
+ ovs_fatal(0, "<port-name> arguments for -Q or --port-queue must "
+ "be unique");
+ }
+}
+
static void
parse_options(int argc, char *argv[])
{
enum {
OPT_MAX_IDLE = UCHAR_MAX + 1,
OPT_PEER_CA_CERT,
- VLOG_OPTION_ENUMS
+ OPT_MUTE,
+ OPT_WITH_FLOWS,
+ OPT_UNIXCTL,
+ VLOG_OPTION_ENUMS,
+ DAEMON_OPTION_ENUMS
};
static struct option long_options[] = {
{"hub", no_argument, 0, 'H'},
{"noflow", no_argument, 0, 'n'},
+ {"normal", no_argument, 0, 'N'},
+ {"wildcard", no_argument, 0, 'w'},
{"max-idle", required_argument, 0, OPT_MAX_IDLE},
+ {"mute", no_argument, 0, OPT_MUTE},
+ {"queue", required_argument, 0, 'q'},
+ {"port-queue", required_argument, 0, 'Q'},
+ {"with-flows", required_argument, 0, OPT_WITH_FLOWS},
+ {"unixctl", required_argument, 0, OPT_UNIXCTL},
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
DAEMON_LONG_OPTIONS,
VLOG_LONG_OPTIONS,
-#ifdef HAVE_OPENSSL
- VCONN_SSL_LONG_OPTIONS
+ STREAM_SSL_LONG_OPTIONS,
{"peer-ca-cert", required_argument, 0, OPT_PEER_CA_CERT},
-#endif
{0, 0, 0, 0},
};
char *short_options = long_options_to_short_options(long_options);
break;
case 'n':
- setup_flows = false;
+ set_up_flows = false;
+ break;
+
+ case OPT_MUTE:
+ mute = true;
+ break;
+
+ case 'N':
+ action_normal = true;
+ break;
+
+ case 'w':
+ exact_flows = false;
break;
case OPT_MAX_IDLE:
}
break;
+ case 'q':
+ default_queue = atoi(optarg);
+ break;
+
+ case 'Q':
+ add_port_queue(optarg);
+ break;
+
+ case OPT_WITH_FLOWS:
+ read_flow_file(optarg);
+ break;
+
+ case OPT_UNIXCTL:
+ unixctl_path = optarg;
+ break;
+
case 'h':
usage();
VLOG_OPTION_HANDLERS
DAEMON_OPTION_HANDLERS
-#ifdef HAVE_OPENSSL
- VCONN_SSL_OPTION_HANDLERS
+ STREAM_SSL_OPTION_HANDLERS
case OPT_PEER_CA_CERT:
- vconn_ssl_set_peer_ca_cert_file(optarg);
+ stream_ssl_set_peer_ca_cert_file(optarg);
break;
-#endif
case '?':
exit(EXIT_FAILURE);
}
}
free(short_options);
+
+ if (!shash_is_empty(&port_queues) || default_queue != UINT32_MAX) {
+ if (action_normal) {
+ ovs_error(0, "queue IDs are incompatible with -N or --normal; "
+ "not using OFPP_NORMAL");
+ action_normal = false;
+ }
+
+ if (!learn_macs) {
+ ovs_error(0, "queue IDs are incompatible with -H or --hub; "
+ "not acting as hub");
+ learn_macs = true;
+ }
+ }
}
static void
" -H, --hub act as hub instead of learning switch\n"
" -n, --noflow pass traffic, but don't add flows\n"
" --max-idle=SECS max idle time for new flows\n"
+ " -N, --normal use OFPP_NORMAL action\n"
+ " -w, --wildcard use wildcards, not exact-match rules\n"
+ " -q, --queue=QUEUE-ID OpenFlow queue ID to use for output\n"
+ " -Q PORT-NAME:QUEUE-ID use QUEUE-ID for frames from PORT-NAME\n"
+ " --with-flows FILE use the flows from FILE\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);