2 * Copyright (c) 2009, 2010, 2011, 2012 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
24 #include "command-line.h"
28 #include "openflow/openflow.h"
29 #include "poll-loop.h"
30 #include "socket-util.h"
32 #include "stream-ssl.h"
44 struct pstream *pstream;
48 check(int a, int b, const char *as, const char *file, int line)
51 ovs_fatal(0, "%s:%d: %s is %d but should be %d", file, line, as, a, b);
56 #define CHECK(A, B) check(A, B, #A, __FILE__, __LINE__)
59 check_errno(int a, int b, const char *as, const char *file, int line)
62 char *str_b = strdup(strerror(abs(b)));
63 ovs_fatal(0, "%s:%d: %s is %d (%s) but should be %d (%s)",
64 file, line, as, a, strerror(abs(a)), b, str_b);
68 #define CHECK_ERRNO(A, B) check_errno(A, B, #A, __FILE__, __LINE__)
71 fpv_create(const char *type, struct fake_pvconn *fpv)
74 if (!strcmp(type, "ssl")) {
75 stream_ssl_set_private_key_file("testpki-privkey.pem");
76 stream_ssl_set_certificate_file("testpki-cert.pem");
77 stream_ssl_set_ca_cert_file("testpki-cacert.pem", false);
82 if (!strcmp(type, "unix")) {
83 static int unix_count = 0;
86 bind_path = xasprintf("fake-pvconn.%d", unix_count++);
87 fpv->pvconn_name = xasprintf("punix:%s", bind_path);
88 fpv->vconn_name = xasprintf("unix:%s", bind_path);
89 CHECK_ERRNO(pstream_open(fpv->pvconn_name, &fpv->pstream,
92 } else if (!strcmp(type, "tcp") || !strcmp(type, "ssl")) {
93 char *s, *port, *save_ptr = NULL;
96 open_name = xasprintf("p%s:0:127.0.0.1", type);
97 CHECK_ERRNO(pstream_open(open_name, &fpv->pstream, DSCP_DEFAULT), 0);
99 /* Extract bound port number from pstream name. */
100 s = xstrdup(pstream_get_name(fpv->pstream));
101 strtok_r(s, ":", &save_ptr);
102 port = strtok_r(NULL, ":", &save_ptr);
105 fpv->pvconn_name = xstrdup(pstream_get_name(fpv->pstream));
106 fpv->vconn_name = xasprintf("%s:127.0.0.1:%s", type, port);
115 static struct stream *
116 fpv_accept(struct fake_pvconn *fpv)
118 struct stream *stream;
120 CHECK_ERRNO(pstream_accept_block(fpv->pstream, &stream), 0);
126 fpv_close(struct fake_pvconn *fpv)
128 pstream_close(fpv->pstream);
133 fpv_destroy(struct fake_pvconn *fpv)
136 free(fpv->pvconn_name);
137 free(fpv->vconn_name);
140 /* Connects to a fake_pvconn with vconn_open(), then closes the listener and
141 * verifies that vconn_connect() reports 'expected_error'. */
143 test_refuse_connection(int argc OVS_UNUSED, char *argv[])
145 const char *type = argv[1];
147 struct fake_pvconn fpv;
150 expected_error = (!strcmp(type, "unix") ? EPIPE
151 : !strcmp(type, "tcp") ? ECONNRESET
154 fpv_create(type, &fpv);
155 CHECK_ERRNO(vconn_open(fpv.vconn_name, OFP10_VERSION, &vconn,
159 CHECK_ERRNO(vconn_connect(vconn), expected_error);
164 /* Connects to a fake_pvconn with vconn_open(), accepts that connection and
165 * closes it immediately, and verifies that vconn_connect() reports
166 * 'expected_error'. */
168 test_accept_then_close(int argc OVS_UNUSED, char *argv[])
170 const char *type = argv[1];
172 struct fake_pvconn fpv;
175 expected_error = (!strcmp(type, "unix") ? EPIPE
176 : !strcmp(type, "tcp") ? ECONNRESET
179 fpv_create(type, &fpv);
180 CHECK_ERRNO(vconn_open(fpv.vconn_name, OFP10_VERSION, &vconn,
183 stream_close(fpv_accept(&fpv));
185 CHECK_ERRNO(vconn_connect(vconn), expected_error);
190 /* Connects to a fake_pvconn with vconn_open(), accepts that connection and
191 * reads the hello message from it, then closes the connection and verifies
192 * that vconn_connect() reports 'expected_error'. */
194 test_read_hello(int argc OVS_UNUSED, char *argv[])
196 const char *type = argv[1];
197 struct fake_pvconn fpv;
199 struct stream *stream;
201 fpv_create(type, &fpv);
202 CHECK_ERRNO(vconn_open(fpv.vconn_name, OFP10_VERSION, &vconn,
205 stream = fpv_accept(&fpv);
208 struct ofp_header hello;
211 retval = stream_recv(stream, &hello, sizeof hello);
212 if (retval == sizeof hello) {
215 CHECK(hello.version, OFP10_VERSION);
216 CHECK(ofpraw_decode_partial(&raw, &hello, sizeof hello), 0);
217 CHECK(raw, OFPRAW_OFPT_HELLO);
218 CHECK(ntohs(hello.length), sizeof hello);
221 CHECK_ERRNO(retval, -EAGAIN);
225 CHECK_ERRNO(vconn_connect(vconn), EAGAIN);
226 vconn_run_wait(vconn);
227 vconn_connect_wait(vconn);
228 stream_recv_wait(stream);
231 stream_close(stream);
232 CHECK_ERRNO(vconn_connect(vconn), ECONNRESET);
236 /* Connects to a fake_pvconn with vconn_open(), accepts that connection and
237 * sends the 'out' bytes in 'out_size' to it (presumably an OFPT_HELLO
238 * message), then verifies that vconn_connect() reports
239 * 'expect_connect_error'. */
241 test_send_hello(const char *type, const void *out, size_t out_size,
242 int expect_connect_error)
244 struct fake_pvconn fpv;
246 bool read_hello, connected;
248 struct stream *stream;
251 fpv_create(type, &fpv);
252 CHECK_ERRNO(vconn_open(fpv.vconn_name, OFP10_VERSION, &vconn,
255 stream = fpv_accept(&fpv);
259 while (n_sent < out_size) {
262 retval = stream_send(stream, (char *) out + n_sent, out_size - n_sent);
265 } else if (retval == -EAGAIN) {
268 stream_recv_wait(stream);
269 vconn_connect_wait(vconn);
270 vconn_run_wait(vconn);
273 ovs_fatal(0, "stream_send returned unexpected value %d", retval);
277 read_hello = connected = false;
280 struct ofp_header hello;
281 int retval = stream_recv(stream, &hello, sizeof hello);
282 if (retval == sizeof hello) {
285 CHECK(hello.version, OFP10_VERSION);
286 CHECK(ofpraw_decode_partial(&raw, &hello, sizeof hello), 0);
287 CHECK(raw, OFPRAW_OFPT_HELLO);
288 CHECK(ntohs(hello.length), sizeof hello);
291 CHECK_ERRNO(retval, -EAGAIN);
297 int error = vconn_connect(vconn);
298 if (error == expect_connect_error) {
302 stream_close(stream);
307 CHECK_ERRNO(error, EAGAIN);
311 if (read_hello && connected) {
315 vconn_run_wait(vconn);
317 vconn_connect_wait(vconn);
320 stream_recv_wait(stream);
324 stream_close(stream);
325 CHECK_ERRNO(vconn_recv(vconn, &msg), EOF);
329 /* Try connecting and sending a normal hello, which should succeed. */
331 test_send_plain_hello(int argc OVS_UNUSED, char *argv[])
333 const char *type = argv[1];
334 struct ofpbuf *hello;
336 hello = ofpraw_alloc_xid(OFPRAW_OFPT_HELLO, OFP10_VERSION,
337 htonl(0x12345678), 0);
338 test_send_hello(type, hello->data, hello->size, 0);
339 ofpbuf_delete(hello);
342 /* Try connecting and sending an extra-long hello, which should succeed (since
343 * the specification says that implementations must accept and ignore extra
346 test_send_long_hello(int argc OVS_UNUSED, char *argv[])
348 const char *type = argv[1];
349 struct ofpbuf *hello;
350 enum { EXTRA_BYTES = 8 };
352 hello = ofpraw_alloc_xid(OFPRAW_OFPT_HELLO, OFP10_VERSION,
353 htonl(0x12345678), EXTRA_BYTES);
354 ofpbuf_put_zeros(hello, EXTRA_BYTES);
355 ofpmsg_update_length(hello);
356 test_send_hello(type, hello->data, hello->size, 0);
357 ofpbuf_delete(hello);
360 /* Try connecting and sending an echo request instead of a hello, which should
361 * fail with EPROTO. */
363 test_send_echo_hello(int argc OVS_UNUSED, char *argv[])
365 const char *type = argv[1];
368 echo = ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, OFP10_VERSION,
369 htonl(0x12345678), 0);
370 test_send_hello(type, echo->data, echo->size, EPROTO);
374 /* Try connecting and sending a hello packet that has its length field as 0,
375 * which should fail with EPROTO. */
377 test_send_short_hello(int argc OVS_UNUSED, char *argv[])
379 const char *type = argv[1];
380 struct ofp_header hello;
382 memset(&hello, 0, sizeof hello);
383 test_send_hello(type, &hello, sizeof hello, EPROTO);
386 /* Try connecting and sending a hello packet that has a bad version, which
387 * should fail with EPROTO. */
389 test_send_invalid_version_hello(int argc OVS_UNUSED, char *argv[])
391 const char *type = argv[1];
392 struct ofpbuf *hello;
394 hello = ofpraw_alloc_xid(OFPRAW_OFPT_HELLO, OFP10_VERSION,
395 htonl(0x12345678), 0);
396 ((struct ofp_header *) hello->data)->version = 0;
397 test_send_hello(type, hello->data, hello->size, EPROTO);
398 ofpbuf_delete(hello);
401 static const struct command commands[] = {
402 {"refuse-connection", 1, 1, test_refuse_connection},
403 {"accept-then-close", 1, 1, test_accept_then_close},
404 {"read-hello", 1, 1, test_read_hello},
405 {"send-plain-hello", 1, 1, test_send_plain_hello},
406 {"send-long-hello", 1, 1, test_send_long_hello},
407 {"send-echo-hello", 1, 1, test_send_echo_hello},
408 {"send-short-hello", 1, 1, test_send_short_hello},
409 {"send-invalid-version-hello", 1, 1, test_send_invalid_version_hello},
414 main(int argc, char *argv[])
416 set_program_name(argv[0]);
417 vlog_set_levels(NULL, VLF_ANY_FACILITY, VLL_EMER);
418 vlog_set_levels(NULL, VLF_CONSOLE, VLL_DBG);
419 signal(SIGPIPE, SIG_IGN);
423 run_command(argc - 1, argv + 1, commands);