1 /* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
4 * We are making the OpenFlow specification and associated documentation
5 * (Software) available for public use and benefit with the expectation
6 * that others will use, modify and enhance the Software and contribute
7 * those enhancements back to the community. However, since we would
8 * like to make the Software available for broadest use, with as few
9 * restrictions as possible permission is hereby granted, free of
10 * charge, to any person obtaining a copy of this Software to deal in
11 * the Software under the copyrights without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, sublicense, and/or sell copies of the Software, and to
14 * permit persons to whom the Software is furnished to do so, subject to
15 * the following conditions:
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
24 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
25 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
26 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
29 * The name and trademarks of copyright holder(s) may NOT be used in
30 * advertising or publicity pertaining to the Software or any
31 * derivatives without specific, written prior permission.
43 #include "command-line.h"
47 #include "openflow/openflow.h"
48 #include "poll-loop.h"
55 #include "vconn-ssl.h"
56 #include "vlog-socket.h"
58 #define THIS_MODULE VLM_udatapath
61 /* Strings to describe the manufacturer, hardware, and software. This data
62 * is queriable through the switch description stats message. */
63 char mfr_desc[DESC_STR_LEN] = "Nicira Networks";
64 char hw_desc[DESC_STR_LEN] = "Reference User-Space Switch";
65 char sw_desc[DESC_STR_LEN] = VERSION BUILDNR;
66 char serial_num[SERIAL_NUM_LEN] = "None";
68 static void parse_options(int argc, char *argv[]);
69 static void usage(void) NO_RETURN;
71 static struct datapath *dp;
72 static uint64_t dpid = UINT64_MAX;
73 static char *port_list;
74 static char *local_port = "tap:";
76 static void add_ports(struct datapath *dp, char *port_list);
79 main(int argc, char *argv[])
85 set_program_name(argv[0]);
86 register_fault_handlers();
89 parse_options(argc, argv);
90 signal(SIGPIPE, SIG_IGN);
92 if (argc - optind < 1) {
93 ofp_fatal(0, "at least one listener argument is required; "
94 "use --help for usage");
97 error = dp_new(&dp, dpid);
100 for (i = optind; i < argc; i++) {
101 const char *pvconn_name = argv[i];
102 struct pvconn *pvconn;
105 retval = pvconn_open(pvconn_name, &pvconn);
106 if (!retval || retval == EAGAIN) {
107 dp_add_pvconn(dp, pvconn);
110 ofp_error(retval, "opening %s", pvconn_name);
114 ofp_fatal(0, "could not listen for any connections");
118 add_ports(dp, port_list);
121 error = dp_add_local_port(dp, local_port);
123 ofp_fatal(error, "failed to add local port %s", local_port);
127 error = vlog_server_listen(NULL, NULL);
129 ofp_fatal(error, "could not listen for vlog connections");
132 die_if_already_running();
145 add_ports(struct datapath *dp, char *port_list)
147 char *port, *save_ptr;
149 /* Glibc 2.7 has a bug in strtok_r when compiling with optimization that
150 * can cause segfaults here:
151 * http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614.
152 * Using ",," instead of the obvious "," works around it. */
153 for (port = strtok_r(port_list, ",,", &save_ptr); port;
154 port = strtok_r(NULL, ",,", &save_ptr)) {
155 int error = dp_add_port(dp, port);
157 ofp_fatal(error, "failed to add port %s", port);
163 parse_options(int argc, char *argv[])
166 OPT_MFR_DESC = UCHAR_MAX + 1,
170 OPT_BOOTSTRAP_CA_CERT,
174 static struct option long_options[] = {
175 {"interfaces", required_argument, 0, 'i'},
176 {"local-port", required_argument, 0, 'L'},
177 {"no-local-port", no_argument, 0, OPT_NO_LOCAL_PORT},
178 {"datapath-id", required_argument, 0, 'd'},
179 {"verbose", optional_argument, 0, 'v'},
180 {"help", no_argument, 0, 'h'},
181 {"version", no_argument, 0, 'V'},
182 {"mfr-desc", required_argument, 0, OPT_MFR_DESC},
183 {"hw-desc", required_argument, 0, OPT_HW_DESC},
184 {"sw-desc", required_argument, 0, OPT_SW_DESC},
185 {"serial_num", required_argument, 0, OPT_SERIAL_NUM},
188 VCONN_SSL_LONG_OPTIONS
189 {"bootstrap-ca-cert", required_argument, 0, OPT_BOOTSTRAP_CA_CERT},
193 char *short_options = long_options_to_short_options(long_options);
199 c = getopt_long(argc, argv, short_options, long_options, &indexptr);
206 if (strlen(optarg) != 12
207 || strspn(optarg, "0123456789abcdefABCDEF") != 12) {
208 ofp_fatal(0, "argument to -d or --datapath-id must be "
209 "exactly 12 hex digits");
211 dpid = strtoll(optarg, NULL, 16);
213 ofp_fatal(0, "argument to -d or --datapath-id must "
222 printf("%s %s compiled "__DATE__" "__TIME__"\n",
223 program_name, VERSION BUILDNR);
227 vlog_set_verbosity(optarg);
234 port_list = xasprintf("%s,%s", port_list, optarg);
242 case OPT_NO_LOCAL_PORT:
247 strncpy(mfr_desc, optarg, sizeof mfr_desc);
251 strncpy(hw_desc, optarg, sizeof hw_desc);
255 strncpy(sw_desc, optarg, sizeof sw_desc);
259 strncpy(serial_num, optarg, sizeof serial_num);
262 DAEMON_OPTION_HANDLERS
265 VCONN_SSL_OPTION_HANDLERS
267 case OPT_BOOTSTRAP_CA_CERT:
268 vconn_ssl_set_ca_cert_file(optarg, true);
285 printf("%s: userspace OpenFlow datapath\n"
286 "usage: %s [OPTIONS] LISTEN...\n"
287 "where LISTEN is a passive OpenFlow connection method on which\n"
288 "to listen for incoming connections from the secure channel.\n",
289 program_name, program_name);
290 vconn_usage(false, true, false);
291 printf("\nConfiguration options:\n"
292 " -i, --interfaces=NETDEV[,NETDEV]...\n"
293 " add specified initial switch ports\n"
294 " -L, --local-port=NETDEV set network device for local port\n"
295 " --no-local-port disable local port\n"
296 " -d, --datapath-id=ID Use ID as the OpenFlow switch ID\n"
297 " (ID must consist of 12 hex digits)\n"
299 " -D, --detach run in background as daemon\n"
300 " -P, --pidfile[=FILE] create pidfile (default: %s/udatapath.pid)\n"
301 " -f, --force with -P, start even if already running\n"
302 " -v, --verbose=MODULE[:FACILITY[:LEVEL]] set logging levels\n"
303 " -v, --verbose set maximum verbosity level\n"
304 " -h, --help display this help message\n"
305 " -V, --version display version information\n",