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 const char *listen_vconn_name;
59 static struct datapath *dp;
60 static uint64_t dpid = UINT64_MAX;
61 static char *port_list;
63 static void add_ports(struct datapath *dp, char *port_list);
66 main(int argc, char *argv[])
70 set_program_name(argv[0]);
71 register_fault_handlers();
73 parse_options(argc, argv);
75 if (argc - optind != 1) {
76 fatal(0, "missing controller argument; use --help for usage");
79 error = dp_new(&dp, dpid, rconn_new(argv[optind], 128));
80 if (listen_vconn_name) {
81 struct vconn *listen_vconn;
84 retval = vconn_open(listen_vconn_name, &listen_vconn);
85 if (retval && retval != EAGAIN) {
86 fatal(retval, "opening %s", listen_vconn_name);
88 if (!vconn_is_passive(listen_vconn)) {
89 fatal(0, "%s is not a passive vconn", listen_vconn_name);
91 dp_add_listen_vconn(dp, listen_vconn);
94 fatal(error, "could not create datapath");
97 add_ports(dp, port_list);
100 error = vlog_server_listen(NULL, NULL);
102 fatal(error, "could not listen for vlog connections");
115 add_ports(struct datapath *dp, char *port_list)
117 char *port, *save_ptr;
119 /* Glibc 2.7 has a bug in strtok_r when compiling with optimization that
120 * can cause segfaults here:
121 * http://sources.redhat.com/bugzilla/show_bug.cgi?id=5614.
122 * Using ",," instead of the obvious "," works around it. */
123 for (port = strtok_r(port_list, ",,", &save_ptr); port;
124 port = strtok_r(NULL, ",,", &save_ptr)) {
125 int error = dp_add_port(dp, port);
127 fatal(error, "failed to add port %s", port);
133 parse_options(int argc, char *argv[])
135 static struct option long_options[] = {
136 {"interfaces", required_argument, 0, 'i'},
137 {"datapath-id", required_argument, 0, 'd'},
138 {"listen", required_argument, 0, 'l'},
139 {"verbose", optional_argument, 0, 'v'},
140 {"help", no_argument, 0, 'h'},
141 {"version", no_argument, 0, 'V'},
142 VCONN_SSL_LONG_OPTIONS
145 char *short_options = long_options_to_short_options(long_options);
151 c = getopt_long(argc, argv, short_options, long_options, &indexptr);
158 if (strlen(optarg) != 12
159 || strspn(optarg, "0123456789abcdefABCDEF") != 12) {
160 fatal(0, "argument to -d or --datapath-id must be "
161 "exactly 12 hex digits");
163 dpid = strtoll(optarg, NULL, 16);
165 fatal(0, "argument to -d or --datapath-id must be nonzero");
173 printf("%s "VERSION" compiled "__DATE__" "__TIME__"\n", argv[0]);
177 vlog_set_verbosity(optarg);
184 port_list = xasprintf("%s,%s", port_list, optarg);
189 if (listen_vconn_name) {
190 fatal(0, "-l or --listen may be only specified once");
192 listen_vconn_name = optarg;
195 VCONN_SSL_OPTION_HANDLERS
210 printf("%s: userspace OpenFlow switch\n"
211 "usage: %s [OPTIONS] CONTROLLER\n"
212 "where CONTROLLER is an active OpenFlow connection method.\n",
213 program_name, program_name);
214 vconn_usage(true, true);
215 printf("\nConfiguration options:\n"
216 " -i, --interfaces=NETDEV[,NETDEV]...\n"
217 " add specified initial switch ports\n"
218 " -d, --datapath-id=ID Use ID as the OpenFlow switch ID\n"
219 " (ID must consist of 12 hex digits)\n"
220 " -l, --listen=METHOD allow management connections on METHOD\n"
221 " (a passive OpenFlow connection method)\n"
223 " -v, --verbose set maximum verbosity level\n"
224 " -h, --help display this help message\n"
225 " -V, --version display version information\n");