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.
40 #include "command-line.h"
44 #include "poll-loop.h"
49 #include "vconn-ssl.h"
50 #include "vlog-socket.h"
52 #define THIS_MODULE VLM_switch
55 static void parse_options(int argc, char *argv[]);
56 static void usage(void) NO_RETURN;
58 static struct datapath *dp;
59 static uint64_t dpid = UINT64_MAX;
60 static char *port_list;
62 static void add_ports(struct datapath *dp, char *port_list);
65 main(int argc, char *argv[])
69 set_program_name(argv[0]);
70 register_fault_handlers();
72 parse_options(argc, argv);
74 if (argc - optind != 1) {
75 fatal(0, "missing controller argument; use --help for usage");
78 error = dp_new(&dp, dpid, rconn_new(argv[optind], 128));
80 fatal(error, "could not create datapath");
83 add_ports(dp, port_list);
86 error = vlog_server_listen(NULL, NULL);
88 fatal(error, "could not listen for vlog connections");
101 add_ports(struct datapath *dp, char *port_list)
103 char *port, *save_ptr;
105 /* Glibc 2.7 has a bug in strtok_r when compiling with optimization that
106 * can cause segfaults here:
107 * http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614.
108 * Using ",," instead of the obvious "," works around it. */
109 for (port = strtok_r(port_list, ",,", &save_ptr); port;
110 port = strtok_r(NULL, ",,", &save_ptr)) {
111 int error = dp_add_port(dp, port);
113 fatal(error, "failed to add port %s", port);
119 parse_options(int argc, char *argv[])
121 static struct option long_options[] = {
122 {"interfaces", required_argument, 0, 'i'},
123 {"datapath-id", required_argument, 0, 'd'},
124 {"verbose", optional_argument, 0, 'v'},
125 {"help", no_argument, 0, 'h'},
126 {"version", no_argument, 0, 'V'},
127 VCONN_SSL_LONG_OPTIONS
130 char *short_options = long_options_to_short_options(long_options);
136 c = getopt_long(argc, argv, short_options, long_options, &indexptr);
143 if (strlen(optarg) != 12
144 || strspn(optarg, "0123456789abcdefABCDEF") != 12) {
145 fatal(0, "argument to -d or --datapath-id must be "
146 "exactly 12 hex digits");
148 dpid = strtoll(optarg, NULL, 16);
150 fatal(0, "argument to -d or --datapath-id must be nonzero");
158 printf("%s "VERSION" compiled "__DATE__" "__TIME__"\n", argv[0]);
162 vlog_set_verbosity(optarg);
169 port_list = xasprintf("%s,%s", port_list, optarg);
173 VCONN_SSL_OPTION_HANDLERS
188 printf("%s: userspace OpenFlow switch\n"
189 "usage: %s [OPTIONS] CONTROLLER\n"
190 "where CONTROLLER is an active OpenFlow connection method.\n",
191 program_name, program_name);
192 vconn_usage(true, false);
193 printf("\nOptions:\n"
194 " -i, --interfaces=NETDEV[,NETDEV]...\n"
195 " add specified initial switch ports\n"
196 " -d, --datapath-id=ID Use ID as the OpenFlow switch ID\n"
197 " (ID must consist of 12 hex digits)\n"
198 " -v, --verbose set maximum verbosity level\n"
199 " -h, --help display this help message\n"
200 " -V, --version display version information\n");