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614c4892 | 1 | /* |
f72dff1a | 2 | * Copyright (c) 2010, 2011, 2012, 2013, 2015, 2016 Nicira, Inc. |
614c4892 BP |
3 | * |
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: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
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. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
18 | ||
19 | #include "dummy.h" | |
20 | ||
21 | #include <errno.h> | |
f8cf6502 | 22 | #include <unistd.h> |
614c4892 | 23 | |
e14deea0 | 24 | #include "dp-packet.h" |
df1e5a3b | 25 | #include "dpif-netdev.h" |
fbac791a | 26 | #include "flow.h" |
614c4892 | 27 | #include "netdev-provider.h" |
c060c4cf | 28 | #include "netdev-vport.h" |
fbac791a | 29 | #include "odp-util.h" |
25d436fb BW |
30 | #include "openvswitch/dynamic-string.h" |
31 | #include "openvswitch/list.h" | |
32 | #include "openvswitch/ofp-print.h" | |
64c96779 | 33 | #include "openvswitch/ofpbuf.h" |
25d436fb | 34 | #include "openvswitch/vlog.h" |
5617ae6a | 35 | #include "ovs-atomic.h" |
614c4892 | 36 | #include "packets.h" |
55d87b06 | 37 | #include "pcap-file.h" |
fbac791a | 38 | #include "poll-loop.h" |
614c4892 | 39 | #include "shash.h" |
0cbfe35d | 40 | #include "sset.h" |
eab5611a BP |
41 | #include "stream.h" |
42 | #include "unaligned.h" | |
55d87b06 | 43 | #include "timeval.h" |
fbac791a | 44 | #include "unixctl.h" |
631486bd | 45 | #include "reconnect.h" |
614c4892 BP |
46 | |
47 | VLOG_DEFINE_THIS_MODULE(netdev_dummy); | |
48 | ||
631486bd AZ |
49 | struct reconnect; |
50 | ||
51 | struct dummy_packet_stream { | |
eab5611a | 52 | struct stream *stream; |
cf62fa4c | 53 | struct dp_packet rxbuf; |
ca6ba700 | 54 | struct ovs_list txq; |
eab5611a BP |
55 | }; |
56 | ||
631486bd AZ |
57 | enum dummy_packet_conn_type { |
58 | NONE, /* No connection is configured. */ | |
59 | PASSIVE, /* Listener. */ | |
60 | ACTIVE /* Connect to listener. */ | |
61 | }; | |
62 | ||
7d7fffe8 AZ |
63 | enum dummy_netdev_conn_state { |
64 | CONN_STATE_CONNECTED, /* Listener connected. */ | |
65 | CONN_STATE_NOT_CONNECTED, /* Listener not connected. */ | |
66 | CONN_STATE_UNKNOWN, /* No relavent information. */ | |
67 | }; | |
68 | ||
631486bd AZ |
69 | struct dummy_packet_pconn { |
70 | struct pstream *pstream; | |
71 | struct dummy_packet_stream *streams; | |
72 | size_t n_streams; | |
73 | }; | |
74 | ||
75 | struct dummy_packet_rconn { | |
76 | struct dummy_packet_stream *rstream; | |
77 | struct reconnect *reconnect; | |
78 | }; | |
79 | ||
80 | struct dummy_packet_conn { | |
81 | enum dummy_packet_conn_type type; | |
82 | union { | |
83 | struct dummy_packet_pconn pconn; | |
84 | struct dummy_packet_rconn rconn; | |
85 | } u; | |
86 | }; | |
87 | ||
8613db65 DDP |
88 | struct pkt_list_node { |
89 | struct dp_packet *pkt; | |
90 | struct ovs_list list_node; | |
91 | }; | |
92 | ||
5e1de67f BP |
93 | /* Protects 'dummy_list'. */ |
94 | static struct ovs_mutex dummy_list_mutex = OVS_MUTEX_INITIALIZER; | |
95 | ||
96 | /* Contains all 'struct dummy_dev's. */ | |
ca6ba700 | 97 | static struct ovs_list dummy_list OVS_GUARDED_BY(dummy_list_mutex) |
55951e15 | 98 | = OVS_LIST_INITIALIZER(&dummy_list); |
5e1de67f | 99 | |
b5d57fc8 BP |
100 | struct netdev_dummy { |
101 | struct netdev up; | |
86383816 | 102 | |
5e1de67f | 103 | /* In dummy_list. */ |
ca6ba700 | 104 | struct ovs_list list_node OVS_GUARDED_BY(dummy_list_mutex); |
5e1de67f | 105 | |
86383816 | 106 | /* Protects all members below. */ |
5e1de67f | 107 | struct ovs_mutex mutex OVS_ACQ_AFTER(dummy_list_mutex); |
86383816 | 108 | |
74ff3298 | 109 | struct eth_addr hwaddr OVS_GUARDED; |
36e2140d BP |
110 | int mtu OVS_GUARDED; |
111 | struct netdev_stats stats OVS_GUARDED; | |
112 | enum netdev_flags flags OVS_GUARDED; | |
36e2140d BP |
113 | int ifindex OVS_GUARDED; |
114 | ||
631486bd | 115 | struct dummy_packet_conn conn OVS_GUARDED; |
36e2140d | 116 | |
f7791740 | 117 | FILE *tx_pcap, *rxq_pcap OVS_GUARDED; |
55d87b06 | 118 | |
a36de779 | 119 | struct in_addr address, netmask; |
a8704b50 | 120 | struct in6_addr ipv6, ipv6_mask; |
ca6ba700 | 121 | struct ovs_list rxes OVS_GUARDED; /* List of child "netdev_rxq_dummy"s. */ |
9a81a637 IM |
122 | |
123 | /* The following properties are for dummy-pmd and they cannot be changed | |
124 | * when a device is running, so we remember the request and update them | |
125 | * next time netdev_dummy_reconfigure() is called. */ | |
126 | int requested_n_txq; | |
127 | int requested_n_rxq; | |
614c4892 BP |
128 | }; |
129 | ||
e34cfdd9 BP |
130 | /* Max 'recv_queue_len' in struct netdev_dummy. */ |
131 | #define NETDEV_DUMMY_MAX_QUEUE 100 | |
132 | ||
f7791740 PS |
133 | struct netdev_rxq_dummy { |
134 | struct netdev_rxq up; | |
ca6ba700 TG |
135 | struct ovs_list node; /* In netdev_dummy's "rxes" list. */ |
136 | struct ovs_list recv_queue; | |
417e7e66 | 137 | int recv_queue_len; /* ovs_list_size(&recv_queue). */ |
98045eda | 138 | struct seq *seq; /* Reports newly queued packets. */ |
614c4892 BP |
139 | }; |
140 | ||
95d4ec33 | 141 | static unixctl_cb_func netdev_dummy_set_admin_state; |
9dc63482 | 142 | static int netdev_dummy_construct(struct netdev *); |
9a81a637 IM |
143 | static void netdev_dummy_queue_packet(struct netdev_dummy *, |
144 | struct dp_packet *, int); | |
eab5611a | 145 | |
631486bd | 146 | static void dummy_packet_stream_close(struct dummy_packet_stream *); |
614c4892 | 147 | |
8613db65 DDP |
148 | static void pkt_list_delete(struct ovs_list *); |
149 | ||
614c4892 BP |
150 | static bool |
151 | is_dummy_class(const struct netdev_class *class) | |
152 | { | |
9dc63482 | 153 | return class->construct == netdev_dummy_construct; |
614c4892 BP |
154 | } |
155 | ||
614c4892 BP |
156 | static struct netdev_dummy * |
157 | netdev_dummy_cast(const struct netdev *netdev) | |
158 | { | |
b5d57fc8 | 159 | ovs_assert(is_dummy_class(netdev_get_class(netdev))); |
180c6d0b | 160 | return CONTAINER_OF(netdev, struct netdev_dummy, up); |
614c4892 BP |
161 | } |
162 | ||
f7791740 PS |
163 | static struct netdev_rxq_dummy * |
164 | netdev_rxq_dummy_cast(const struct netdev_rxq *rx) | |
796223f5 | 165 | { |
9dc63482 | 166 | ovs_assert(is_dummy_class(netdev_get_class(rx->netdev))); |
f7791740 | 167 | return CONTAINER_OF(rx, struct netdev_rxq_dummy, up); |
796223f5 BP |
168 | } |
169 | ||
eab5611a | 170 | static void |
631486bd | 171 | dummy_packet_stream_init(struct dummy_packet_stream *s, struct stream *stream) |
eab5611a | 172 | { |
631486bd AZ |
173 | int rxbuf_size = stream ? 2048 : 0; |
174 | s->stream = stream; | |
cf62fa4c | 175 | dp_packet_init(&s->rxbuf, rxbuf_size); |
417e7e66 | 176 | ovs_list_init(&s->txq); |
631486bd | 177 | } |
eab5611a | 178 | |
631486bd AZ |
179 | static struct dummy_packet_stream * |
180 | dummy_packet_stream_create(struct stream *stream) | |
181 | { | |
182 | struct dummy_packet_stream *s; | |
eab5611a | 183 | |
631486bd AZ |
184 | s = xzalloc(sizeof *s); |
185 | dummy_packet_stream_init(s, stream); | |
86383816 | 186 | |
631486bd AZ |
187 | return s; |
188 | } | |
eab5611a | 189 | |
631486bd AZ |
190 | static void |
191 | dummy_packet_stream_wait(struct dummy_packet_stream *s) | |
192 | { | |
193 | stream_run_wait(s->stream); | |
417e7e66 | 194 | if (!ovs_list_is_empty(&s->txq)) { |
631486bd AZ |
195 | stream_send_wait(s->stream); |
196 | } | |
197 | stream_recv_wait(s->stream); | |
198 | } | |
eab5611a | 199 | |
631486bd AZ |
200 | static void |
201 | dummy_packet_stream_send(struct dummy_packet_stream *s, const void *buffer, size_t size) | |
202 | { | |
417e7e66 | 203 | if (ovs_list_size(&s->txq) < NETDEV_DUMMY_MAX_QUEUE) { |
cf62fa4c | 204 | struct dp_packet *b; |
8613db65 | 205 | struct pkt_list_node *node; |
eab5611a | 206 | |
cf62fa4c PS |
207 | b = dp_packet_clone_data_with_headroom(buffer, size, 2); |
208 | put_unaligned_be16(dp_packet_push_uninit(b, 2), htons(size)); | |
8613db65 DDP |
209 | |
210 | node = xmalloc(sizeof *node); | |
211 | node->pkt = b; | |
417e7e66 | 212 | ovs_list_push_back(&s->txq, &node->list_node); |
631486bd AZ |
213 | } |
214 | } | |
215 | ||
216 | static int | |
217 | dummy_packet_stream_run(struct netdev_dummy *dev, struct dummy_packet_stream *s) | |
218 | { | |
219 | int error = 0; | |
220 | size_t n; | |
221 | ||
222 | stream_run(s->stream); | |
223 | ||
417e7e66 | 224 | if (!ovs_list_is_empty(&s->txq)) { |
8613db65 | 225 | struct pkt_list_node *txbuf_node; |
cf62fa4c | 226 | struct dp_packet *txbuf; |
631486bd AZ |
227 | int retval; |
228 | ||
417e7e66 | 229 | ASSIGN_CONTAINER(txbuf_node, ovs_list_front(&s->txq), list_node); |
8613db65 | 230 | txbuf = txbuf_node->pkt; |
cf62fa4c | 231 | retval = stream_send(s->stream, dp_packet_data(txbuf), dp_packet_size(txbuf)); |
c0c4982f | 232 | |
631486bd | 233 | if (retval > 0) { |
cf62fa4c PS |
234 | dp_packet_pull(txbuf, retval); |
235 | if (!dp_packet_size(txbuf)) { | |
417e7e66 | 236 | ovs_list_remove(&txbuf_node->list_node); |
8613db65 | 237 | free(txbuf_node); |
cf62fa4c | 238 | dp_packet_delete(txbuf); |
eab5611a | 239 | } |
631486bd AZ |
240 | } else if (retval != -EAGAIN) { |
241 | error = -retval; | |
eab5611a | 242 | } |
631486bd | 243 | } |
86f1d032 | 244 | |
631486bd | 245 | if (!error) { |
cf62fa4c PS |
246 | if (dp_packet_size(&s->rxbuf) < 2) { |
247 | n = 2 - dp_packet_size(&s->rxbuf); | |
631486bd AZ |
248 | } else { |
249 | uint16_t frame_len; | |
250 | ||
cf62fa4c | 251 | frame_len = ntohs(get_unaligned_be16(dp_packet_data(&s->rxbuf))); |
631486bd AZ |
252 | if (frame_len < ETH_HEADER_LEN) { |
253 | error = EPROTO; | |
254 | n = 0; | |
255 | } else { | |
cf62fa4c | 256 | n = (2 + frame_len) - dp_packet_size(&s->rxbuf); |
631486bd AZ |
257 | } |
258 | } | |
eab5611a | 259 | } |
631486bd AZ |
260 | if (!error) { |
261 | int retval; | |
262 | ||
cf62fa4c PS |
263 | dp_packet_prealloc_tailroom(&s->rxbuf, n); |
264 | retval = stream_recv(s->stream, dp_packet_tail(&s->rxbuf), n); | |
c0c4982f | 265 | |
631486bd | 266 | if (retval > 0) { |
cf62fa4c PS |
267 | dp_packet_set_size(&s->rxbuf, dp_packet_size(&s->rxbuf) + retval); |
268 | if (retval == n && dp_packet_size(&s->rxbuf) > 2) { | |
269 | dp_packet_pull(&s->rxbuf, 2); | |
631486bd | 270 | netdev_dummy_queue_packet(dev, |
9a81a637 | 271 | dp_packet_clone(&s->rxbuf), 0); |
cf62fa4c | 272 | dp_packet_clear(&s->rxbuf); |
631486bd AZ |
273 | } |
274 | } else if (retval != -EAGAIN) { | |
275 | error = (retval < 0 ? -retval | |
cf62fa4c | 276 | : dp_packet_size(&s->rxbuf) ? EPROTO |
631486bd AZ |
277 | : EOF); |
278 | } | |
279 | } | |
280 | ||
281 | return error; | |
eab5611a BP |
282 | } |
283 | ||
284 | static void | |
631486bd | 285 | dummy_packet_stream_close(struct dummy_packet_stream *s) |
eab5611a BP |
286 | { |
287 | stream_close(s->stream); | |
cf62fa4c | 288 | dp_packet_uninit(&s->rxbuf); |
8613db65 | 289 | pkt_list_delete(&s->txq); |
eab5611a BP |
290 | } |
291 | ||
292 | static void | |
631486bd | 293 | dummy_packet_conn_init(struct dummy_packet_conn *conn) |
eab5611a | 294 | { |
631486bd AZ |
295 | memset(conn, 0, sizeof *conn); |
296 | conn->type = NONE; | |
297 | } | |
eab5611a | 298 | |
631486bd AZ |
299 | static void |
300 | dummy_packet_conn_get_config(struct dummy_packet_conn *conn, struct smap *args) | |
301 | { | |
eab5611a | 302 | |
631486bd AZ |
303 | switch (conn->type) { |
304 | case PASSIVE: | |
305 | smap_add(args, "pstream", pstream_get_name(conn->u.pconn.pstream)); | |
306 | break; | |
307 | ||
308 | case ACTIVE: | |
309 | smap_add(args, "stream", stream_get_name(conn->u.rconn.rstream->stream)); | |
310 | break; | |
311 | ||
312 | case NONE: | |
313 | default: | |
314 | break; | |
315 | } | |
316 | } | |
317 | ||
318 | static void | |
319 | dummy_packet_conn_close(struct dummy_packet_conn *conn) | |
320 | { | |
321 | int i; | |
322 | struct dummy_packet_pconn *pconn = &conn->u.pconn; | |
323 | struct dummy_packet_rconn *rconn = &conn->u.rconn; | |
324 | ||
325 | switch (conn->type) { | |
326 | case PASSIVE: | |
327 | pstream_close(pconn->pstream); | |
328 | for (i = 0; i < pconn->n_streams; i++) { | |
329 | dummy_packet_stream_close(&pconn->streams[i]); | |
330 | } | |
331 | free(pconn->streams); | |
332 | pconn->pstream = NULL; | |
333 | pconn->streams = NULL; | |
334 | break; | |
335 | ||
336 | case ACTIVE: | |
337 | dummy_packet_stream_close(rconn->rstream); | |
338 | free(rconn->rstream); | |
339 | rconn->rstream = NULL; | |
340 | reconnect_destroy(rconn->reconnect); | |
341 | rconn->reconnect = NULL; | |
342 | break; | |
343 | ||
344 | case NONE: | |
345 | default: | |
346 | break; | |
347 | } | |
348 | ||
349 | conn->type = NONE; | |
350 | memset(conn, 0, sizeof *conn); | |
351 | } | |
352 | ||
353 | static void | |
354 | dummy_packet_conn_set_config(struct dummy_packet_conn *conn, | |
355 | const struct smap *args) | |
356 | { | |
357 | const char *pstream = smap_get(args, "pstream"); | |
358 | const char *stream = smap_get(args, "stream"); | |
359 | ||
360 | if (pstream && stream) { | |
361 | VLOG_WARN("Open failed: both %s and %s are configured", | |
362 | pstream, stream); | |
363 | return; | |
364 | } | |
365 | ||
366 | switch (conn->type) { | |
367 | case PASSIVE: | |
966904d2 BP |
368 | if (pstream && |
369 | !strcmp(pstream_get_name(conn->u.pconn.pstream), pstream)) { | |
631486bd AZ |
370 | return; |
371 | } | |
372 | dummy_packet_conn_close(conn); | |
373 | break; | |
374 | case ACTIVE: | |
966904d2 BP |
375 | if (stream && |
376 | !strcmp(stream_get_name(conn->u.rconn.rstream->stream), stream)) { | |
631486bd AZ |
377 | return; |
378 | } | |
379 | dummy_packet_conn_close(conn); | |
380 | break; | |
381 | case NONE: | |
382 | default: | |
383 | break; | |
384 | } | |
385 | ||
386 | if (pstream) { | |
387 | int error; | |
388 | ||
389 | error = pstream_open(pstream, &conn->u.pconn.pstream, DSCP_DEFAULT); | |
390 | if (error) { | |
391 | VLOG_WARN("%s: open failed (%s)", pstream, ovs_strerror(error)); | |
392 | } else { | |
393 | conn->type = PASSIVE; | |
394 | } | |
395 | } | |
396 | ||
397 | if (stream) { | |
398 | int error; | |
399 | struct stream *active_stream; | |
ea53e3a8 | 400 | struct reconnect *reconnect; |
631486bd AZ |
401 | |
402 | reconnect = reconnect_create(time_msec()); | |
403 | reconnect_set_name(reconnect, stream); | |
404 | reconnect_set_passive(reconnect, false, time_msec()); | |
405 | reconnect_enable(reconnect, time_msec()); | |
fc24d64d | 406 | reconnect_set_backoff(reconnect, 100, INT_MAX); |
13af13b3 | 407 | reconnect_set_probe_interval(reconnect, 0); |
631486bd | 408 | conn->u.rconn.reconnect = reconnect; |
c0c4982f | 409 | conn->type = ACTIVE; |
631486bd AZ |
410 | |
411 | error = stream_open(stream, &active_stream, DSCP_DEFAULT); | |
412 | conn->u.rconn.rstream = dummy_packet_stream_create(active_stream); | |
413 | ||
414 | switch (error) { | |
415 | case 0: | |
c0c4982f | 416 | reconnect_connected(reconnect, time_msec()); |
631486bd AZ |
417 | break; |
418 | ||
419 | case EAGAIN: | |
c0c4982f | 420 | reconnect_connecting(reconnect, time_msec()); |
631486bd AZ |
421 | break; |
422 | ||
423 | default: | |
c0c4982f | 424 | reconnect_connect_failed(reconnect, time_msec(), error); |
631486bd | 425 | stream_close(active_stream); |
c0c4982f | 426 | conn->u.rconn.rstream->stream = NULL; |
631486bd AZ |
427 | break; |
428 | } | |
429 | } | |
430 | } | |
431 | ||
432 | static void | |
433 | dummy_pconn_run(struct netdev_dummy *dev) | |
434 | OVS_REQUIRES(dev->mutex) | |
435 | { | |
436 | struct stream *new_stream; | |
437 | struct dummy_packet_pconn *pconn = &dev->conn.u.pconn; | |
438 | int error; | |
439 | size_t i; | |
440 | ||
441 | error = pstream_accept(pconn->pstream, &new_stream); | |
442 | if (!error) { | |
443 | struct dummy_packet_stream *s; | |
444 | ||
445 | pconn->streams = xrealloc(pconn->streams, | |
446 | ((pconn->n_streams + 1) | |
447 | * sizeof *s)); | |
448 | s = &pconn->streams[pconn->n_streams++]; | |
449 | dummy_packet_stream_init(s, new_stream); | |
450 | } else if (error != EAGAIN) { | |
451 | VLOG_WARN("%s: accept failed (%s)", | |
452 | pstream_get_name(pconn->pstream), ovs_strerror(error)); | |
453 | pstream_close(pconn->pstream); | |
454 | pconn->pstream = NULL; | |
455 | dev->conn.type = NONE; | |
456 | } | |
457 | ||
458 | for (i = 0; i < pconn->n_streams; i++) { | |
459 | struct dummy_packet_stream *s = &pconn->streams[i]; | |
460 | ||
461 | error = dummy_packet_stream_run(dev, s); | |
462 | if (error) { | |
463 | VLOG_DBG("%s: closing connection (%s)", | |
464 | stream_get_name(s->stream), | |
465 | ovs_retval_to_string(error)); | |
466 | dummy_packet_stream_close(s); | |
467 | pconn->streams[i] = pconn->streams[--pconn->n_streams]; | |
eab5611a | 468 | } |
631486bd AZ |
469 | } |
470 | } | |
eab5611a | 471 | |
631486bd AZ |
472 | static void |
473 | dummy_rconn_run(struct netdev_dummy *dev) | |
474 | OVS_REQUIRES(dev->mutex) | |
475 | { | |
476 | struct dummy_packet_rconn *rconn = &dev->conn.u.rconn; | |
477 | ||
478 | switch (reconnect_run(rconn->reconnect, time_msec())) { | |
479 | case RECONNECT_CONNECT: | |
480 | { | |
c0c4982f AZ |
481 | int error; |
482 | ||
483 | if (rconn->rstream->stream) { | |
484 | error = stream_connect(rconn->rstream->stream); | |
485 | } else { | |
486 | error = stream_open(reconnect_get_name(rconn->reconnect), | |
487 | &rconn->rstream->stream, DSCP_DEFAULT); | |
488 | } | |
631486bd | 489 | |
c0c4982f AZ |
490 | switch (error) { |
491 | case 0: | |
631486bd | 492 | reconnect_connected(rconn->reconnect, time_msec()); |
631486bd AZ |
493 | break; |
494 | ||
495 | case EAGAIN: | |
496 | reconnect_connecting(rconn->reconnect, time_msec()); | |
c0c4982f | 497 | break; |
631486bd AZ |
498 | |
499 | default: | |
c0c4982f | 500 | reconnect_connect_failed(rconn->reconnect, time_msec(), error); |
631486bd | 501 | stream_close(rconn->rstream->stream); |
c0c4982f AZ |
502 | rconn->rstream->stream = NULL; |
503 | break; | |
eab5611a | 504 | } |
eab5611a | 505 | } |
631486bd AZ |
506 | break; |
507 | ||
508 | case RECONNECT_DISCONNECT: | |
509 | case RECONNECT_PROBE: | |
510 | default: | |
511 | break; | |
512 | } | |
513 | ||
514 | if (reconnect_is_connected(rconn->reconnect)) { | |
515 | int err; | |
516 | ||
517 | err = dummy_packet_stream_run(dev, rconn->rstream); | |
518 | ||
519 | if (err) { | |
520 | reconnect_disconnected(rconn->reconnect, time_msec(), err); | |
521 | stream_close(rconn->rstream->stream); | |
c0c4982f | 522 | rconn->rstream->stream = NULL; |
631486bd AZ |
523 | } |
524 | } | |
525 | } | |
526 | ||
527 | static void | |
528 | dummy_packet_conn_run(struct netdev_dummy *dev) | |
529 | OVS_REQUIRES(dev->mutex) | |
530 | { | |
531 | switch (dev->conn.type) { | |
532 | case PASSIVE: | |
533 | dummy_pconn_run(dev); | |
534 | break; | |
535 | ||
536 | case ACTIVE: | |
537 | dummy_rconn_run(dev); | |
538 | break; | |
539 | ||
540 | case NONE: | |
541 | default: | |
542 | break; | |
543 | } | |
544 | } | |
545 | ||
546 | static void | |
547 | dummy_packet_conn_wait(struct dummy_packet_conn *conn) | |
548 | { | |
549 | int i; | |
550 | switch (conn->type) { | |
551 | case PASSIVE: | |
552 | pstream_wait(conn->u.pconn.pstream); | |
553 | for (i = 0; i < conn->u.pconn.n_streams; i++) { | |
554 | struct dummy_packet_stream *s = &conn->u.pconn.streams[i]; | |
555 | dummy_packet_stream_wait(s); | |
556 | } | |
557 | break; | |
558 | case ACTIVE: | |
c0c4982f AZ |
559 | if (reconnect_is_connected(conn->u.rconn.reconnect)) { |
560 | dummy_packet_stream_wait(conn->u.rconn.rstream); | |
561 | } | |
631486bd AZ |
562 | break; |
563 | ||
564 | case NONE: | |
565 | default: | |
566 | break; | |
567 | } | |
568 | } | |
569 | ||
570 | static void | |
571 | dummy_packet_conn_send(struct dummy_packet_conn *conn, | |
572 | const void *buffer, size_t size) | |
573 | { | |
574 | int i; | |
575 | ||
576 | switch (conn->type) { | |
577 | case PASSIVE: | |
578 | for (i = 0; i < conn->u.pconn.n_streams; i++) { | |
579 | struct dummy_packet_stream *s = &conn->u.pconn.streams[i]; | |
580 | ||
581 | dummy_packet_stream_send(s, buffer, size); | |
582 | pstream_wait(conn->u.pconn.pstream); | |
583 | } | |
584 | break; | |
585 | ||
586 | case ACTIVE: | |
c0c4982f AZ |
587 | if (reconnect_is_connected(conn->u.rconn.reconnect)) { |
588 | dummy_packet_stream_send(conn->u.rconn.rstream, buffer, size); | |
589 | dummy_packet_stream_wait(conn->u.rconn.rstream); | |
590 | } | |
631486bd AZ |
591 | break; |
592 | ||
593 | case NONE: | |
594 | default: | |
595 | break; | |
596 | } | |
597 | } | |
598 | ||
7d7fffe8 AZ |
599 | static enum dummy_netdev_conn_state |
600 | dummy_netdev_get_conn_state(struct dummy_packet_conn *conn) | |
601 | { | |
602 | enum dummy_netdev_conn_state state; | |
603 | ||
604 | if (conn->type == ACTIVE) { | |
605 | if (reconnect_is_connected(conn->u.rconn.reconnect)) { | |
606 | state = CONN_STATE_CONNECTED; | |
607 | } else { | |
608 | state = CONN_STATE_NOT_CONNECTED; | |
609 | } | |
610 | } else { | |
611 | state = CONN_STATE_UNKNOWN; | |
612 | } | |
613 | ||
614 | return state; | |
615 | } | |
616 | ||
631486bd AZ |
617 | static void |
618 | netdev_dummy_run(void) | |
619 | { | |
620 | struct netdev_dummy *dev; | |
621 | ||
622 | ovs_mutex_lock(&dummy_list_mutex); | |
623 | LIST_FOR_EACH (dev, list_node, &dummy_list) { | |
624 | ovs_mutex_lock(&dev->mutex); | |
625 | dummy_packet_conn_run(dev); | |
626 | ovs_mutex_unlock(&dev->mutex); | |
627 | } | |
628 | ovs_mutex_unlock(&dummy_list_mutex); | |
629 | } | |
630 | ||
631 | static void | |
632 | netdev_dummy_wait(void) | |
633 | { | |
634 | struct netdev_dummy *dev; | |
635 | ||
636 | ovs_mutex_lock(&dummy_list_mutex); | |
637 | LIST_FOR_EACH (dev, list_node, &dummy_list) { | |
638 | ovs_mutex_lock(&dev->mutex); | |
639 | dummy_packet_conn_wait(&dev->conn); | |
86383816 | 640 | ovs_mutex_unlock(&dev->mutex); |
eab5611a | 641 | } |
5e1de67f | 642 | ovs_mutex_unlock(&dummy_list_mutex); |
eab5611a BP |
643 | } |
644 | ||
9dc63482 BP |
645 | static struct netdev * |
646 | netdev_dummy_alloc(void) | |
647 | { | |
648 | struct netdev_dummy *netdev = xzalloc(sizeof *netdev); | |
649 | return &netdev->up; | |
650 | } | |
651 | ||
614c4892 | 652 | static int |
9dc63482 | 653 | netdev_dummy_construct(struct netdev *netdev_) |
614c4892 | 654 | { |
97e5b2e5 | 655 | static atomic_count next_n = ATOMIC_COUNT_INIT(0xaa550000); |
9dc63482 | 656 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); |
01cdb3a1 BP |
657 | unsigned int n; |
658 | ||
97e5b2e5 | 659 | n = atomic_count_inc(&next_n); |
86383816 | 660 | |
834d6caf | 661 | ovs_mutex_init(&netdev->mutex); |
36e2140d | 662 | ovs_mutex_lock(&netdev->mutex); |
74ff3298 JR |
663 | netdev->hwaddr.ea[0] = 0xaa; |
664 | netdev->hwaddr.ea[1] = 0x55; | |
665 | netdev->hwaddr.ea[2] = n >> 24; | |
666 | netdev->hwaddr.ea[3] = n >> 16; | |
667 | netdev->hwaddr.ea[4] = n >> 8; | |
668 | netdev->hwaddr.ea[5] = n; | |
b5d57fc8 BP |
669 | netdev->mtu = 1500; |
670 | netdev->flags = 0; | |
b5d57fc8 | 671 | netdev->ifindex = -EOPNOTSUPP; |
9a81a637 IM |
672 | netdev->requested_n_rxq = netdev_->n_rxq; |
673 | netdev->requested_n_txq = netdev_->n_txq; | |
eab5611a | 674 | |
631486bd | 675 | dummy_packet_conn_init(&netdev->conn); |
eab5611a | 676 | |
417e7e66 | 677 | ovs_list_init(&netdev->rxes); |
36e2140d | 678 | ovs_mutex_unlock(&netdev->mutex); |
b5d57fc8 | 679 | |
5e1de67f | 680 | ovs_mutex_lock(&dummy_list_mutex); |
417e7e66 | 681 | ovs_list_push_back(&dummy_list, &netdev->list_node); |
5e1de67f BP |
682 | ovs_mutex_unlock(&dummy_list_mutex); |
683 | ||
614c4892 BP |
684 | return 0; |
685 | } | |
686 | ||
687 | static void | |
9dc63482 | 688 | netdev_dummy_destruct(struct netdev *netdev_) |
614c4892 | 689 | { |
b5d57fc8 | 690 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); |
614c4892 | 691 | |
5e1de67f | 692 | ovs_mutex_lock(&dummy_list_mutex); |
417e7e66 | 693 | ovs_list_remove(&netdev->list_node); |
5e1de67f BP |
694 | ovs_mutex_unlock(&dummy_list_mutex); |
695 | ||
36e2140d | 696 | ovs_mutex_lock(&netdev->mutex); |
631486bd AZ |
697 | dummy_packet_conn_close(&netdev->conn); |
698 | netdev->conn.type = NONE; | |
699 | ||
36e2140d | 700 | ovs_mutex_unlock(&netdev->mutex); |
86383816 | 701 | ovs_mutex_destroy(&netdev->mutex); |
9dc63482 BP |
702 | } |
703 | ||
704 | static void | |
705 | netdev_dummy_dealloc(struct netdev *netdev_) | |
706 | { | |
707 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
708 | ||
b5d57fc8 | 709 | free(netdev); |
614c4892 BP |
710 | } |
711 | ||
8073dd31 | 712 | static int |
9a81a637 | 713 | netdev_dummy_get_config(const struct netdev *dev, struct smap *args) |
8073dd31 | 714 | { |
9a81a637 | 715 | struct netdev_dummy *netdev = netdev_dummy_cast(dev); |
8073dd31 | 716 | |
5a9bf514 | 717 | ovs_mutex_lock(&netdev->mutex); |
55d87b06 | 718 | |
b5d57fc8 BP |
719 | if (netdev->ifindex >= 0) { |
720 | smap_add_format(args, "ifindex", "%d", netdev->ifindex); | |
8073dd31 | 721 | } |
55d87b06 | 722 | |
631486bd | 723 | dummy_packet_conn_get_config(&netdev->conn, args); |
5a9bf514 | 724 | |
9a81a637 IM |
725 | /* 'dummy-pmd' specific config. */ |
726 | if (!netdev_is_pmd(dev)) { | |
727 | goto exit; | |
728 | } | |
729 | smap_add_format(args, "requested_rx_queues", "%d", netdev->requested_n_rxq); | |
730 | smap_add_format(args, "configured_rx_queues", "%d", dev->n_rxq); | |
731 | smap_add_format(args, "requested_tx_queues", "%d", netdev->requested_n_txq); | |
732 | smap_add_format(args, "configured_tx_queues", "%d", dev->n_txq); | |
733 | ||
734 | exit: | |
55d87b06 | 735 | ovs_mutex_unlock(&netdev->mutex); |
8073dd31 NM |
736 | return 0; |
737 | } | |
738 | ||
2af602f2 | 739 | static int |
a8704b50 PS |
740 | netdev_dummy_get_addr_list(const struct netdev *netdev_, struct in6_addr **paddr, |
741 | struct in6_addr **pmask, int *n_addr) | |
2af602f2 TLSC |
742 | { |
743 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
a8704b50 PS |
744 | int cnt = 0, i = 0, err = 0; |
745 | struct in6_addr *addr, *mask; | |
2af602f2 TLSC |
746 | |
747 | ovs_mutex_lock(&netdev->mutex); | |
a8704b50 PS |
748 | if (netdev->address.s_addr != INADDR_ANY) { |
749 | cnt++; | |
750 | } | |
751 | ||
752 | if (ipv6_addr_is_set(&netdev->ipv6)) { | |
753 | cnt++; | |
754 | } | |
755 | if (!cnt) { | |
756 | err = EADDRNOTAVAIL; | |
757 | goto out; | |
758 | } | |
759 | addr = xmalloc(sizeof *addr * cnt); | |
760 | mask = xmalloc(sizeof *mask * cnt); | |
761 | if (netdev->address.s_addr != INADDR_ANY) { | |
762 | in6_addr_set_mapped_ipv4(&addr[i], netdev->address.s_addr); | |
763 | in6_addr_set_mapped_ipv4(&mask[i], netdev->netmask.s_addr); | |
764 | i++; | |
765 | } | |
766 | ||
767 | if (ipv6_addr_is_set(&netdev->ipv6)) { | |
768 | memcpy(&addr[i], &netdev->ipv6, sizeof *addr); | |
769 | memcpy(&mask[i], &netdev->ipv6_mask, sizeof *mask); | |
770 | i++; | |
771 | } | |
772 | if (paddr) { | |
773 | *paddr = addr; | |
774 | *pmask = mask; | |
775 | *n_addr = cnt; | |
776 | } else { | |
777 | free(addr); | |
778 | free(mask); | |
779 | } | |
780 | out: | |
2af602f2 TLSC |
781 | ovs_mutex_unlock(&netdev->mutex); |
782 | ||
a8704b50 | 783 | return err; |
2af602f2 TLSC |
784 | } |
785 | ||
a36de779 PS |
786 | static int |
787 | netdev_dummy_set_in4(struct netdev *netdev_, struct in_addr address, | |
788 | struct in_addr netmask) | |
789 | { | |
790 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
791 | ||
792 | ovs_mutex_lock(&netdev->mutex); | |
793 | netdev->address = address; | |
794 | netdev->netmask = netmask; | |
d2b11b5b | 795 | netdev_change_seq_changed(netdev_); |
a36de779 PS |
796 | ovs_mutex_unlock(&netdev->mutex); |
797 | ||
798 | return 0; | |
799 | } | |
800 | ||
2af602f2 | 801 | static int |
a8704b50 PS |
802 | netdev_dummy_set_in6(struct netdev *netdev_, struct in6_addr *in6, |
803 | struct in6_addr *mask) | |
2af602f2 TLSC |
804 | { |
805 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
806 | ||
807 | ovs_mutex_lock(&netdev->mutex); | |
808 | netdev->ipv6 = *in6; | |
a8704b50 | 809 | netdev->ipv6_mask = *mask; |
d2b11b5b | 810 | netdev_change_seq_changed(netdev_); |
2af602f2 TLSC |
811 | ovs_mutex_unlock(&netdev->mutex); |
812 | ||
813 | return 0; | |
814 | } | |
815 | ||
8073dd31 | 816 | static int |
b5d57fc8 | 817 | netdev_dummy_set_config(struct netdev *netdev_, const struct smap *args) |
614c4892 | 818 | { |
b5d57fc8 | 819 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); |
55d87b06 | 820 | const char *pcap; |
9a81a637 | 821 | int new_n_rxq; |
614c4892 | 822 | |
86383816 | 823 | ovs_mutex_lock(&netdev->mutex); |
b5d57fc8 | 824 | netdev->ifindex = smap_get_int(args, "ifindex", -EOPNOTSUPP); |
eab5611a | 825 | |
631486bd | 826 | dummy_packet_conn_set_config(&netdev->conn, args); |
55d87b06 | 827 | |
f7791740 PS |
828 | if (netdev->rxq_pcap) { |
829 | fclose(netdev->rxq_pcap); | |
55d87b06 | 830 | } |
f7791740 | 831 | if (netdev->tx_pcap && netdev->tx_pcap != netdev->rxq_pcap) { |
55d87b06 BP |
832 | fclose(netdev->tx_pcap); |
833 | } | |
f7791740 | 834 | netdev->rxq_pcap = netdev->tx_pcap = NULL; |
55d87b06 BP |
835 | pcap = smap_get(args, "pcap"); |
836 | if (pcap) { | |
f7791740 | 837 | netdev->rxq_pcap = netdev->tx_pcap = ovs_pcap_open(pcap, "ab"); |
55d87b06 | 838 | } else { |
f7791740 | 839 | const char *rxq_pcap = smap_get(args, "rxq_pcap"); |
55d87b06 BP |
840 | const char *tx_pcap = smap_get(args, "tx_pcap"); |
841 | ||
f7791740 PS |
842 | if (rxq_pcap) { |
843 | netdev->rxq_pcap = ovs_pcap_open(rxq_pcap, "ab"); | |
55d87b06 BP |
844 | } |
845 | if (tx_pcap) { | |
50aa0364 | 846 | netdev->tx_pcap = ovs_pcap_open(tx_pcap, "ab"); |
55d87b06 BP |
847 | } |
848 | } | |
849 | ||
9a81a637 IM |
850 | netdev_change_seq_changed(netdev_); |
851 | ||
852 | /* 'dummy-pmd' specific config. */ | |
853 | if (!netdev_->netdev_class->is_pmd) { | |
854 | goto exit; | |
855 | } | |
856 | ||
857 | new_n_rxq = MAX(smap_get_int(args, "n_rxq", netdev->requested_n_rxq), 1); | |
858 | if (new_n_rxq != netdev->requested_n_rxq) { | |
859 | netdev->requested_n_rxq = new_n_rxq; | |
860 | netdev_request_reconfigure(netdev_); | |
861 | } | |
86383816 | 862 | |
9a81a637 IM |
863 | exit: |
864 | ovs_mutex_unlock(&netdev->mutex); | |
614c4892 BP |
865 | return 0; |
866 | } | |
867 | ||
f9176a3a IM |
868 | static int |
869 | netdev_dummy_get_numa_id(const struct netdev *netdev_ OVS_UNUSED) | |
870 | { | |
871 | return 0; | |
872 | } | |
873 | ||
9a81a637 IM |
874 | /* Requests the number of tx queues for the dummy PMD interface. */ |
875 | static int | |
876 | netdev_dummy_set_tx_multiq(struct netdev *netdev_, unsigned int n_txq) | |
877 | { | |
878 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
879 | ||
880 | ovs_mutex_lock(&netdev->mutex); | |
881 | ||
882 | if (netdev_->n_txq == n_txq) { | |
883 | goto out; | |
884 | } | |
885 | ||
886 | netdev->requested_n_txq = n_txq; | |
887 | netdev_request_reconfigure(netdev_); | |
888 | ||
889 | out: | |
890 | ovs_mutex_unlock(&netdev->mutex); | |
891 | return 0; | |
892 | } | |
893 | ||
894 | /* Sets the number of tx queues and rx queues for the dummy PMD interface. */ | |
895 | static int | |
896 | netdev_dummy_reconfigure(struct netdev *netdev_) | |
897 | { | |
898 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
899 | ||
900 | ovs_mutex_lock(&netdev->mutex); | |
901 | ||
902 | netdev_->n_txq = netdev->requested_n_txq; | |
903 | netdev_->n_rxq = netdev->requested_n_rxq; | |
904 | ||
905 | ovs_mutex_unlock(&netdev->mutex); | |
906 | return 0; | |
907 | } | |
908 | ||
f7791740 PS |
909 | static struct netdev_rxq * |
910 | netdev_dummy_rxq_alloc(void) | |
9dc63482 | 911 | { |
f7791740 | 912 | struct netdev_rxq_dummy *rx = xzalloc(sizeof *rx); |
9dc63482 BP |
913 | return &rx->up; |
914 | } | |
915 | ||
7b6b0ef4 | 916 | static int |
f7791740 | 917 | netdev_dummy_rxq_construct(struct netdev_rxq *rxq_) |
7b6b0ef4 | 918 | { |
f7791740 | 919 | struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_); |
9dc63482 | 920 | struct netdev_dummy *netdev = netdev_dummy_cast(rx->up.netdev); |
796223f5 | 921 | |
86383816 | 922 | ovs_mutex_lock(&netdev->mutex); |
417e7e66 BW |
923 | ovs_list_push_back(&netdev->rxes, &rx->node); |
924 | ovs_list_init(&rx->recv_queue); | |
e34cfdd9 | 925 | rx->recv_queue_len = 0; |
98045eda | 926 | rx->seq = seq_create(); |
86383816 | 927 | ovs_mutex_unlock(&netdev->mutex); |
796223f5 | 928 | |
7b6b0ef4 BP |
929 | return 0; |
930 | } | |
931 | ||
9dc63482 | 932 | static void |
f7791740 | 933 | netdev_dummy_rxq_destruct(struct netdev_rxq *rxq_) |
9dc63482 | 934 | { |
f7791740 | 935 | struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_); |
86383816 | 936 | struct netdev_dummy *netdev = netdev_dummy_cast(rx->up.netdev); |
9dc63482 | 937 | |
86383816 | 938 | ovs_mutex_lock(&netdev->mutex); |
417e7e66 | 939 | ovs_list_remove(&rx->node); |
8613db65 | 940 | pkt_list_delete(&rx->recv_queue); |
86383816 | 941 | ovs_mutex_unlock(&netdev->mutex); |
98045eda | 942 | seq_destroy(rx->seq); |
9dc63482 BP |
943 | } |
944 | ||
945 | static void | |
f7791740 | 946 | netdev_dummy_rxq_dealloc(struct netdev_rxq *rxq_) |
9dc63482 | 947 | { |
f7791740 | 948 | struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_); |
9dc63482 BP |
949 | |
950 | free(rx); | |
951 | } | |
952 | ||
7b6b0ef4 | 953 | static int |
e14deea0 | 954 | netdev_dummy_rxq_recv(struct netdev_rxq *rxq_, struct dp_packet **arr, |
91088554 | 955 | int *c) |
fbac791a | 956 | { |
f7791740 | 957 | struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_); |
86383816 | 958 | struct netdev_dummy *netdev = netdev_dummy_cast(rx->up.netdev); |
cf62fa4c | 959 | struct dp_packet *packet; |
fbac791a | 960 | |
86383816 | 961 | ovs_mutex_lock(&netdev->mutex); |
417e7e66 | 962 | if (!ovs_list_is_empty(&rx->recv_queue)) { |
8613db65 DDP |
963 | struct pkt_list_node *pkt_node; |
964 | ||
417e7e66 | 965 | ASSIGN_CONTAINER(pkt_node, ovs_list_pop_front(&rx->recv_queue), list_node); |
8613db65 DDP |
966 | packet = pkt_node->pkt; |
967 | free(pkt_node); | |
86383816 BP |
968 | rx->recv_queue_len--; |
969 | } else { | |
970 | packet = NULL; | |
971 | } | |
972 | ovs_mutex_unlock(&netdev->mutex); | |
973 | ||
974 | if (!packet) { | |
f8cf6502 DDP |
975 | if (netdev_is_pmd(&netdev->up)) { |
976 | /* If 'netdev' is a PMD device, this is called as part of the PMD | |
977 | * thread busy loop. We yield here (without quiescing) for two | |
978 | * reasons: | |
979 | * | |
980 | * - To reduce the CPU utilization during the testsuite | |
981 | * - To give valgrind a chance to switch thread. According | |
982 | * to the valgrind documentation, there's a big lock that | |
983 | * prevents multiple thread from being executed at the same | |
984 | * time. On my system, without this sleep, the pmd threads | |
985 | * testcases fail under valgrind, because ovs-vswitchd becomes | |
986 | * unresponsive. */ | |
987 | sched_yield(); | |
988 | } | |
bfd3367b | 989 | return EAGAIN; |
fbac791a | 990 | } |
df1e5a3b PS |
991 | ovs_mutex_lock(&netdev->mutex); |
992 | netdev->stats.rx_packets++; | |
cf62fa4c | 993 | netdev->stats.rx_bytes += dp_packet_size(packet); |
df1e5a3b | 994 | ovs_mutex_unlock(&netdev->mutex); |
fbac791a | 995 | |
df1e5a3b | 996 | dp_packet_pad(packet); |
91088554 | 997 | |
cf62fa4c | 998 | arr[0] = packet; |
df1e5a3b PS |
999 | *c = 1; |
1000 | return 0; | |
fbac791a BP |
1001 | } |
1002 | ||
1003 | static void | |
f7791740 | 1004 | netdev_dummy_rxq_wait(struct netdev_rxq *rxq_) |
796223f5 | 1005 | { |
f7791740 | 1006 | struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_); |
86383816 | 1007 | struct netdev_dummy *netdev = netdev_dummy_cast(rx->up.netdev); |
98045eda | 1008 | uint64_t seq = seq_read(rx->seq); |
86383816 BP |
1009 | |
1010 | ovs_mutex_lock(&netdev->mutex); | |
417e7e66 | 1011 | if (!ovs_list_is_empty(&rx->recv_queue)) { |
fbac791a | 1012 | poll_immediate_wake(); |
98045eda BP |
1013 | } else { |
1014 | seq_wait(rx->seq, seq); | |
fbac791a | 1015 | } |
86383816 | 1016 | ovs_mutex_unlock(&netdev->mutex); |
fbac791a BP |
1017 | } |
1018 | ||
1019 | static int | |
f7791740 | 1020 | netdev_dummy_rxq_drain(struct netdev_rxq *rxq_) |
fbac791a | 1021 | { |
f7791740 | 1022 | struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_); |
86383816 BP |
1023 | struct netdev_dummy *netdev = netdev_dummy_cast(rx->up.netdev); |
1024 | ||
1025 | ovs_mutex_lock(&netdev->mutex); | |
8613db65 | 1026 | pkt_list_delete(&rx->recv_queue); |
e34cfdd9 | 1027 | rx->recv_queue_len = 0; |
86383816 BP |
1028 | ovs_mutex_unlock(&netdev->mutex); |
1029 | ||
98045eda BP |
1030 | seq_change(rx->seq); |
1031 | ||
fbac791a | 1032 | return 0; |
7b6b0ef4 BP |
1033 | } |
1034 | ||
02d5bfe3 | 1035 | static int |
f00fa8cb | 1036 | netdev_dummy_send(struct netdev *netdev, int qid OVS_UNUSED, |
e14deea0 | 1037 | struct dp_packet **pkts, int cnt, bool may_steal) |
02d5bfe3 | 1038 | { |
b5d57fc8 | 1039 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
f4fd623c DDP |
1040 | int error = 0; |
1041 | int i; | |
eab5611a | 1042 | |
f4fd623c | 1043 | for (i = 0; i < cnt; i++) { |
cf62fa4c PS |
1044 | const void *buffer = dp_packet_data(pkts[i]); |
1045 | size_t size = dp_packet_size(pkts[i]); | |
eab5611a | 1046 | |
aaca4fe0 WT |
1047 | size -= dp_packet_get_cutlen(pkts[i]); |
1048 | ||
f4fd623c DDP |
1049 | if (size < ETH_HEADER_LEN) { |
1050 | error = EMSGSIZE; | |
1051 | break; | |
1052 | } else { | |
1053 | const struct eth_header *eth = buffer; | |
1054 | int max_size; | |
36e2140d | 1055 | |
f4fd623c DDP |
1056 | ovs_mutex_lock(&dev->mutex); |
1057 | max_size = dev->mtu + ETH_HEADER_LEN; | |
1058 | ovs_mutex_unlock(&dev->mutex); | |
1059 | ||
1060 | if (eth->eth_type == htons(ETH_TYPE_VLAN)) { | |
1061 | max_size += VLAN_HEADER_LEN; | |
1062 | } | |
1063 | if (size > max_size) { | |
1064 | error = EMSGSIZE; | |
1065 | break; | |
1066 | } | |
eab5611a | 1067 | } |
02d5bfe3 | 1068 | |
f4fd623c DDP |
1069 | ovs_mutex_lock(&dev->mutex); |
1070 | dev->stats.tx_packets++; | |
1071 | dev->stats.tx_bytes += size; | |
1072 | ||
1073 | dummy_packet_conn_send(&dev->conn, buffer, size); | |
02d5bfe3 | 1074 | |
bde96a9a BP |
1075 | /* Reply to ARP requests for 'dev''s assigned IP address. */ |
1076 | if (dev->address.s_addr) { | |
1077 | struct dp_packet packet; | |
1078 | struct flow flow; | |
1079 | ||
1080 | dp_packet_use_const(&packet, buffer, size); | |
1081 | flow_extract(&packet, &flow); | |
1082 | if (flow.dl_type == htons(ETH_TYPE_ARP) | |
1083 | && flow.nw_proto == ARP_OP_REQUEST | |
1084 | && flow.nw_dst == dev->address.s_addr) { | |
1085 | struct dp_packet *reply = dp_packet_new(0); | |
1086 | compose_arp(reply, ARP_OP_REPLY, dev->hwaddr, flow.dl_src, | |
1087 | false, flow.nw_dst, flow.nw_src); | |
9a81a637 | 1088 | netdev_dummy_queue_packet(dev, reply, 0); |
bde96a9a BP |
1089 | } |
1090 | } | |
1091 | ||
f4fd623c | 1092 | if (dev->tx_pcap) { |
cf62fa4c | 1093 | struct dp_packet packet; |
631486bd | 1094 | |
cf62fa4c | 1095 | dp_packet_use_const(&packet, buffer, size); |
f4fd623c DDP |
1096 | ovs_pcap_write(dev->tx_pcap, &packet); |
1097 | fflush(dev->tx_pcap); | |
1098 | } | |
55d87b06 | 1099 | |
f4fd623c | 1100 | ovs_mutex_unlock(&dev->mutex); |
55d87b06 BP |
1101 | } |
1102 | ||
40d26f04 | 1103 | if (may_steal) { |
f4fd623c | 1104 | for (i = 0; i < cnt; i++) { |
e14deea0 | 1105 | dp_packet_delete(pkts[i]); |
f4fd623c | 1106 | } |
40d26f04 | 1107 | } |
eab5611a | 1108 | |
f4fd623c | 1109 | return error; |
02d5bfe3 BP |
1110 | } |
1111 | ||
614c4892 | 1112 | static int |
74ff3298 | 1113 | netdev_dummy_set_etheraddr(struct netdev *netdev, const struct eth_addr mac) |
614c4892 | 1114 | { |
b5d57fc8 | 1115 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
614c4892 | 1116 | |
86383816 | 1117 | ovs_mutex_lock(&dev->mutex); |
614c4892 | 1118 | if (!eth_addr_equals(dev->hwaddr, mac)) { |
74ff3298 | 1119 | dev->hwaddr = mac; |
3e912ffc | 1120 | netdev_change_seq_changed(netdev); |
614c4892 | 1121 | } |
86383816 | 1122 | ovs_mutex_unlock(&dev->mutex); |
614c4892 BP |
1123 | |
1124 | return 0; | |
1125 | } | |
1126 | ||
1127 | static int | |
74ff3298 | 1128 | netdev_dummy_get_etheraddr(const struct netdev *netdev, struct eth_addr *mac) |
614c4892 | 1129 | { |
86383816 | 1130 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
614c4892 | 1131 | |
86383816 | 1132 | ovs_mutex_lock(&dev->mutex); |
74ff3298 | 1133 | *mac = dev->hwaddr; |
86383816 BP |
1134 | ovs_mutex_unlock(&dev->mutex); |
1135 | ||
614c4892 BP |
1136 | return 0; |
1137 | } | |
1138 | ||
1139 | static int | |
1140 | netdev_dummy_get_mtu(const struct netdev *netdev, int *mtup) | |
1141 | { | |
86383816 | 1142 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
614c4892 | 1143 | |
86383816 | 1144 | ovs_mutex_lock(&dev->mutex); |
614c4892 | 1145 | *mtup = dev->mtu; |
86383816 BP |
1146 | ovs_mutex_unlock(&dev->mutex); |
1147 | ||
614c4892 BP |
1148 | return 0; |
1149 | } | |
1150 | ||
9b020780 PS |
1151 | static int |
1152 | netdev_dummy_set_mtu(const struct netdev *netdev, int mtu) | |
1153 | { | |
b5d57fc8 | 1154 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
9b020780 | 1155 | |
86383816 | 1156 | ovs_mutex_lock(&dev->mutex); |
9b020780 | 1157 | dev->mtu = mtu; |
86383816 BP |
1158 | ovs_mutex_unlock(&dev->mutex); |
1159 | ||
9b020780 PS |
1160 | return 0; |
1161 | } | |
1162 | ||
614c4892 BP |
1163 | static int |
1164 | netdev_dummy_get_stats(const struct netdev *netdev, struct netdev_stats *stats) | |
1165 | { | |
86383816 | 1166 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
614c4892 | 1167 | |
86383816 | 1168 | ovs_mutex_lock(&dev->mutex); |
d6e3feb5 | 1169 | /* Passing only collected counters */ |
1170 | stats->tx_packets = dev->stats.tx_packets; | |
1171 | stats->tx_bytes = dev->stats.tx_bytes; | |
1172 | stats->rx_packets = dev->stats.rx_packets; | |
1173 | stats->rx_bytes = dev->stats.rx_bytes; | |
86383816 BP |
1174 | ovs_mutex_unlock(&dev->mutex); |
1175 | ||
614c4892 BP |
1176 | return 0; |
1177 | } | |
1178 | ||
f72dff1a BP |
1179 | static int |
1180 | netdev_dummy_get_queue(const struct netdev *netdev OVS_UNUSED, | |
1181 | unsigned int queue_id, struct smap *details OVS_UNUSED) | |
1182 | { | |
1183 | if (queue_id == 0) { | |
1184 | return 0; | |
1185 | } else { | |
1186 | return EINVAL; | |
1187 | } | |
1188 | } | |
1189 | ||
1190 | static void | |
1191 | netdev_dummy_init_queue_stats(struct netdev_queue_stats *stats) | |
1192 | { | |
1193 | *stats = (struct netdev_queue_stats) { | |
1194 | .tx_bytes = UINT64_MAX, | |
1195 | .tx_packets = UINT64_MAX, | |
1196 | .tx_errors = UINT64_MAX, | |
1197 | .created = LLONG_MIN, | |
1198 | }; | |
1199 | } | |
1200 | ||
1201 | static int | |
1202 | netdev_dummy_get_queue_stats(const struct netdev *netdev OVS_UNUSED, | |
1203 | unsigned int queue_id, | |
1204 | struct netdev_queue_stats *stats) | |
1205 | { | |
1206 | if (queue_id == 0) { | |
1207 | netdev_dummy_init_queue_stats(stats); | |
1208 | return 0; | |
1209 | } else { | |
1210 | return EINVAL; | |
1211 | } | |
1212 | } | |
1213 | ||
1214 | struct netdev_dummy_queue_state { | |
1215 | unsigned int next_queue; | |
1216 | }; | |
1217 | ||
1218 | static int | |
1219 | netdev_dummy_queue_dump_start(const struct netdev *netdev OVS_UNUSED, | |
1220 | void **statep) | |
1221 | { | |
1222 | struct netdev_dummy_queue_state *state = xmalloc(sizeof *state); | |
1223 | state->next_queue = 0; | |
1224 | *statep = state; | |
1225 | return 0; | |
1226 | } | |
1227 | ||
1228 | static int | |
1229 | netdev_dummy_queue_dump_next(const struct netdev *netdev OVS_UNUSED, | |
1230 | void *state_, | |
1231 | unsigned int *queue_id, | |
1232 | struct smap *details OVS_UNUSED) | |
1233 | { | |
1234 | struct netdev_dummy_queue_state *state = state_; | |
1235 | if (state->next_queue == 0) { | |
1236 | *queue_id = 0; | |
1237 | state->next_queue++; | |
1238 | return 0; | |
1239 | } else { | |
1240 | return EOF; | |
1241 | } | |
1242 | } | |
1243 | ||
1244 | static int | |
1245 | netdev_dummy_queue_dump_done(const struct netdev *netdev OVS_UNUSED, | |
1246 | void *state) | |
1247 | { | |
1248 | free(state); | |
1249 | return 0; | |
1250 | } | |
1251 | ||
1252 | static int | |
1253 | netdev_dummy_dump_queue_stats(const struct netdev *netdev OVS_UNUSED, | |
1254 | void (*cb)(unsigned int queue_id, | |
1255 | struct netdev_queue_stats *, | |
1256 | void *aux), | |
1257 | void *aux) | |
1258 | { | |
1259 | struct netdev_queue_stats stats; | |
1260 | netdev_dummy_init_queue_stats(&stats); | |
1261 | cb(0, &stats, aux); | |
1262 | return 0; | |
1263 | } | |
1264 | ||
8073dd31 NM |
1265 | static int |
1266 | netdev_dummy_get_ifindex(const struct netdev *netdev) | |
1267 | { | |
b5d57fc8 | 1268 | struct netdev_dummy *dev = netdev_dummy_cast(netdev); |
86383816 BP |
1269 | int ifindex; |
1270 | ||
1271 | ovs_mutex_lock(&dev->mutex); | |
1272 | ifindex = dev->ifindex; | |
1273 | ovs_mutex_unlock(&dev->mutex); | |
8073dd31 | 1274 | |
86383816 | 1275 | return ifindex; |
8073dd31 NM |
1276 | } |
1277 | ||
614c4892 | 1278 | static int |
86383816 BP |
1279 | netdev_dummy_update_flags__(struct netdev_dummy *netdev, |
1280 | enum netdev_flags off, enum netdev_flags on, | |
1281 | enum netdev_flags *old_flagsp) | |
1282 | OVS_REQUIRES(netdev->mutex) | |
614c4892 | 1283 | { |
614c4892 BP |
1284 | if ((off | on) & ~(NETDEV_UP | NETDEV_PROMISC)) { |
1285 | return EINVAL; | |
1286 | } | |
1287 | ||
b5d57fc8 BP |
1288 | *old_flagsp = netdev->flags; |
1289 | netdev->flags |= on; | |
1290 | netdev->flags &= ~off; | |
1291 | if (*old_flagsp != netdev->flags) { | |
3e912ffc | 1292 | netdev_change_seq_changed(&netdev->up); |
614c4892 | 1293 | } |
86383816 | 1294 | |
614c4892 BP |
1295 | return 0; |
1296 | } | |
1297 | ||
86383816 BP |
1298 | static int |
1299 | netdev_dummy_update_flags(struct netdev *netdev_, | |
1300 | enum netdev_flags off, enum netdev_flags on, | |
1301 | enum netdev_flags *old_flagsp) | |
1302 | { | |
1303 | struct netdev_dummy *netdev = netdev_dummy_cast(netdev_); | |
1304 | int error; | |
1305 | ||
1306 | ovs_mutex_lock(&netdev->mutex); | |
1307 | error = netdev_dummy_update_flags__(netdev, off, on, old_flagsp); | |
1308 | ovs_mutex_unlock(&netdev->mutex); | |
1309 | ||
1310 | return error; | |
1311 | } | |
614c4892 BP |
1312 | \f |
1313 | /* Helper functions. */ | |
1314 | ||
9a81a637 | 1315 | #define NETDEV_DUMMY_CLASS(NAME, PMD, TX_MULTIQ, RECOFIGURE) \ |
f9176a3a IM |
1316 | { \ |
1317 | NAME, \ | |
1318 | PMD, /* is_pmd */ \ | |
1319 | NULL, /* init */ \ | |
1320 | netdev_dummy_run, \ | |
1321 | netdev_dummy_wait, \ | |
1322 | \ | |
1323 | netdev_dummy_alloc, \ | |
1324 | netdev_dummy_construct, \ | |
1325 | netdev_dummy_destruct, \ | |
1326 | netdev_dummy_dealloc, \ | |
1327 | netdev_dummy_get_config, \ | |
1328 | netdev_dummy_set_config, \ | |
1329 | NULL, /* get_tunnel_config */ \ | |
1330 | NULL, /* build header */ \ | |
1331 | NULL, /* push header */ \ | |
1332 | NULL, /* pop header */ \ | |
1333 | netdev_dummy_get_numa_id, \ | |
9a81a637 | 1334 | TX_MULTIQ, \ |
f9176a3a IM |
1335 | \ |
1336 | netdev_dummy_send, /* send */ \ | |
1337 | NULL, /* send_wait */ \ | |
1338 | \ | |
1339 | netdev_dummy_set_etheraddr, \ | |
1340 | netdev_dummy_get_etheraddr, \ | |
1341 | netdev_dummy_get_mtu, \ | |
1342 | netdev_dummy_set_mtu, \ | |
1343 | netdev_dummy_get_ifindex, \ | |
1344 | NULL, /* get_carrier */ \ | |
1345 | NULL, /* get_carrier_resets */ \ | |
1346 | NULL, /* get_miimon */ \ | |
1347 | netdev_dummy_get_stats, \ | |
1348 | \ | |
1349 | NULL, /* get_features */ \ | |
1350 | NULL, /* set_advertisements */ \ | |
1351 | \ | |
1352 | NULL, /* set_policing */ \ | |
1353 | NULL, /* get_qos_types */ \ | |
1354 | NULL, /* get_qos_capabilities */ \ | |
1355 | NULL, /* get_qos */ \ | |
1356 | NULL, /* set_qos */ \ | |
1357 | netdev_dummy_get_queue, \ | |
1358 | NULL, /* set_queue */ \ | |
1359 | NULL, /* delete_queue */ \ | |
1360 | netdev_dummy_get_queue_stats, \ | |
1361 | netdev_dummy_queue_dump_start, \ | |
1362 | netdev_dummy_queue_dump_next, \ | |
1363 | netdev_dummy_queue_dump_done, \ | |
1364 | netdev_dummy_dump_queue_stats, \ | |
1365 | \ | |
1366 | NULL, /* set_in4 */ \ | |
1367 | netdev_dummy_get_addr_list, \ | |
1368 | NULL, /* add_router */ \ | |
1369 | NULL, /* get_next_hop */ \ | |
1370 | NULL, /* get_status */ \ | |
1371 | NULL, /* arp_lookup */ \ | |
1372 | \ | |
1373 | netdev_dummy_update_flags, \ | |
9a81a637 | 1374 | RECOFIGURE, \ |
f9176a3a IM |
1375 | \ |
1376 | netdev_dummy_rxq_alloc, \ | |
1377 | netdev_dummy_rxq_construct, \ | |
1378 | netdev_dummy_rxq_destruct, \ | |
1379 | netdev_dummy_rxq_dealloc, \ | |
1380 | netdev_dummy_rxq_recv, \ | |
1381 | netdev_dummy_rxq_wait, \ | |
1382 | netdev_dummy_rxq_drain, \ | |
1383 | } | |
1384 | ||
1385 | static const struct netdev_class dummy_class = | |
9a81a637 IM |
1386 | NETDEV_DUMMY_CLASS("dummy", false, NULL, NULL); |
1387 | ||
f9176a3a | 1388 | static const struct netdev_class dummy_pmd_class = |
9a81a637 IM |
1389 | NETDEV_DUMMY_CLASS("dummy-pmd", true, |
1390 | netdev_dummy_set_tx_multiq, | |
1391 | netdev_dummy_reconfigure); | |
796223f5 | 1392 | |
8613db65 DDP |
1393 | static void |
1394 | pkt_list_delete(struct ovs_list *l) | |
1395 | { | |
1396 | struct pkt_list_node *pkt; | |
1397 | ||
1398 | LIST_FOR_EACH_POP(pkt, list_node, l) { | |
1399 | dp_packet_delete(pkt->pkt); | |
1400 | free(pkt); | |
1401 | } | |
1402 | } | |
1403 | ||
cf62fa4c | 1404 | static struct dp_packet * |
fbac791a BP |
1405 | eth_from_packet_or_flow(const char *s) |
1406 | { | |
1407 | enum odp_key_fitness fitness; | |
cf62fa4c | 1408 | struct dp_packet *packet; |
fbac791a BP |
1409 | struct ofpbuf odp_key; |
1410 | struct flow flow; | |
1411 | int error; | |
1412 | ||
1413 | if (!eth_from_hex(s, &packet)) { | |
1414 | return packet; | |
1415 | } | |
1416 | ||
1417 | /* Convert string to datapath key. | |
1418 | * | |
1419 | * It would actually be nicer to parse an OpenFlow-like flow key here, but | |
1420 | * the code for that currently calls exit() on parse error. We have to | |
1421 | * settle for parsing a datapath key for now. | |
1422 | */ | |
1423 | ofpbuf_init(&odp_key, 0); | |
e6cc0bab | 1424 | error = odp_flow_from_string(s, NULL, &odp_key, NULL); |
fbac791a BP |
1425 | if (error) { |
1426 | ofpbuf_uninit(&odp_key); | |
1427 | return NULL; | |
1428 | } | |
1429 | ||
1430 | /* Convert odp_key to flow. */ | |
6fd6ed71 | 1431 | fitness = odp_flow_key_to_flow(odp_key.data, odp_key.size, &flow); |
fbac791a BP |
1432 | if (fitness == ODP_FIT_ERROR) { |
1433 | ofpbuf_uninit(&odp_key); | |
1434 | return NULL; | |
1435 | } | |
1436 | ||
cf62fa4c | 1437 | packet = dp_packet_new(0); |
fbac791a BP |
1438 | flow_compose(packet, &flow); |
1439 | ||
1440 | ofpbuf_uninit(&odp_key); | |
1441 | return packet; | |
1442 | } | |
1443 | ||
323cc924 | 1444 | static void |
cf62fa4c | 1445 | netdev_dummy_queue_packet__(struct netdev_rxq_dummy *rx, struct dp_packet *packet) |
2273ea5a | 1446 | { |
8613db65 DDP |
1447 | struct pkt_list_node *pkt_node = xmalloc(sizeof *pkt_node); |
1448 | ||
1449 | pkt_node->pkt = packet; | |
417e7e66 | 1450 | ovs_list_push_back(&rx->recv_queue, &pkt_node->list_node); |
eab5611a | 1451 | rx->recv_queue_len++; |
98045eda | 1452 | seq_change(rx->seq); |
eab5611a | 1453 | } |
2273ea5a | 1454 | |
eab5611a | 1455 | static void |
9a81a637 IM |
1456 | netdev_dummy_queue_packet(struct netdev_dummy *dummy, struct dp_packet *packet, |
1457 | int queue_id) | |
55d87b06 | 1458 | OVS_REQUIRES(dummy->mutex) |
eab5611a | 1459 | { |
f7791740 | 1460 | struct netdev_rxq_dummy *rx, *prev; |
eab5611a | 1461 | |
f7791740 PS |
1462 | if (dummy->rxq_pcap) { |
1463 | ovs_pcap_write(dummy->rxq_pcap, packet); | |
1464 | fflush(dummy->rxq_pcap); | |
55d87b06 | 1465 | } |
eab5611a | 1466 | prev = NULL; |
2273ea5a | 1467 | LIST_FOR_EACH (rx, node, &dummy->rxes) { |
9a81a637 IM |
1468 | if (rx->up.queue_id == queue_id && |
1469 | rx->recv_queue_len < NETDEV_DUMMY_MAX_QUEUE) { | |
eab5611a | 1470 | if (prev) { |
cf62fa4c | 1471 | netdev_dummy_queue_packet__(prev, dp_packet_clone(packet)); |
eab5611a BP |
1472 | } |
1473 | prev = rx; | |
2273ea5a BP |
1474 | } |
1475 | } | |
eab5611a BP |
1476 | if (prev) { |
1477 | netdev_dummy_queue_packet__(prev, packet); | |
1478 | } else { | |
cf62fa4c | 1479 | dp_packet_delete(packet); |
eab5611a | 1480 | } |
2273ea5a BP |
1481 | } |
1482 | ||
fbac791a BP |
1483 | static void |
1484 | netdev_dummy_receive(struct unixctl_conn *conn, | |
1485 | int argc, const char *argv[], void *aux OVS_UNUSED) | |
1486 | { | |
b5d57fc8 | 1487 | struct netdev_dummy *dummy_dev; |
86f1d032 | 1488 | struct netdev *netdev; |
9a81a637 | 1489 | int i, k = 1, rx_qid = 0; |
fbac791a | 1490 | |
9a81a637 | 1491 | netdev = netdev_from_name(argv[k++]); |
86f1d032 | 1492 | if (!netdev || !is_dummy_class(netdev->netdev_class)) { |
bde9f75d | 1493 | unixctl_command_reply_error(conn, "no such dummy netdev"); |
9a81a637 | 1494 | goto exit_netdev; |
fbac791a | 1495 | } |
86f1d032 | 1496 | dummy_dev = netdev_dummy_cast(netdev); |
fbac791a | 1497 | |
9a81a637 IM |
1498 | ovs_mutex_lock(&dummy_dev->mutex); |
1499 | ||
1500 | if (argc > k + 1 && !strcmp(argv[k], "--qid")) { | |
1501 | rx_qid = strtol(argv[k + 1], NULL, 10); | |
1502 | if (rx_qid < 0 || rx_qid >= netdev->n_rxq) { | |
1503 | unixctl_command_reply_error(conn, "bad rx queue id."); | |
1504 | goto exit; | |
1505 | } | |
1506 | k += 2; | |
1507 | } | |
1508 | ||
1509 | for (i = k; i < argc; i++) { | |
cf62fa4c | 1510 | struct dp_packet *packet; |
fbac791a BP |
1511 | |
1512 | packet = eth_from_packet_or_flow(argv[i]); | |
1513 | if (!packet) { | |
bde9f75d | 1514 | unixctl_command_reply_error(conn, "bad packet syntax"); |
86f1d032 | 1515 | goto exit; |
fbac791a BP |
1516 | } |
1517 | ||
9a81a637 | 1518 | netdev_dummy_queue_packet(dummy_dev, packet, rx_qid); |
fbac791a BP |
1519 | } |
1520 | ||
323cc924 | 1521 | unixctl_command_reply(conn, NULL); |
86f1d032 BP |
1522 | |
1523 | exit: | |
9a81a637 IM |
1524 | ovs_mutex_unlock(&dummy_dev->mutex); |
1525 | exit_netdev: | |
86f1d032 | 1526 | netdev_close(netdev); |
fbac791a BP |
1527 | } |
1528 | ||
95d4ec33 | 1529 | static void |
b5d57fc8 | 1530 | netdev_dummy_set_admin_state__(struct netdev_dummy *dev, bool admin_state) |
86383816 | 1531 | OVS_REQUIRES(dev->mutex) |
95d4ec33 EJ |
1532 | { |
1533 | enum netdev_flags old_flags; | |
1534 | ||
1535 | if (admin_state) { | |
86383816 | 1536 | netdev_dummy_update_flags__(dev, 0, NETDEV_UP, &old_flags); |
95d4ec33 | 1537 | } else { |
86383816 | 1538 | netdev_dummy_update_flags__(dev, NETDEV_UP, 0, &old_flags); |
95d4ec33 EJ |
1539 | } |
1540 | } | |
1541 | ||
1542 | static void | |
1543 | netdev_dummy_set_admin_state(struct unixctl_conn *conn, int argc, | |
1544 | const char *argv[], void *aux OVS_UNUSED) | |
1545 | { | |
1546 | bool up; | |
1547 | ||
1548 | if (!strcasecmp(argv[argc - 1], "up")) { | |
1549 | up = true; | |
1550 | } else if ( !strcasecmp(argv[argc - 1], "down")) { | |
1551 | up = false; | |
1552 | } else { | |
1553 | unixctl_command_reply_error(conn, "Invalid Admin State"); | |
1554 | return; | |
1555 | } | |
1556 | ||
1557 | if (argc > 2) { | |
86f1d032 BP |
1558 | struct netdev *netdev = netdev_from_name(argv[1]); |
1559 | if (netdev && is_dummy_class(netdev->netdev_class)) { | |
1560 | struct netdev_dummy *dummy_dev = netdev_dummy_cast(netdev); | |
95d4ec33 | 1561 | |
86383816 | 1562 | ovs_mutex_lock(&dummy_dev->mutex); |
b5d57fc8 | 1563 | netdev_dummy_set_admin_state__(dummy_dev, up); |
86383816 BP |
1564 | ovs_mutex_unlock(&dummy_dev->mutex); |
1565 | ||
86f1d032 | 1566 | netdev_close(netdev); |
95d4ec33 EJ |
1567 | } else { |
1568 | unixctl_command_reply_error(conn, "Unknown Dummy Interface"); | |
86f1d032 | 1569 | netdev_close(netdev); |
95d4ec33 EJ |
1570 | return; |
1571 | } | |
1572 | } else { | |
5e1de67f | 1573 | struct netdev_dummy *netdev; |
86383816 | 1574 | |
5e1de67f BP |
1575 | ovs_mutex_lock(&dummy_list_mutex); |
1576 | LIST_FOR_EACH (netdev, list_node, &dummy_list) { | |
86383816 BP |
1577 | ovs_mutex_lock(&netdev->mutex); |
1578 | netdev_dummy_set_admin_state__(netdev, up); | |
1579 | ovs_mutex_unlock(&netdev->mutex); | |
95d4ec33 | 1580 | } |
5e1de67f | 1581 | ovs_mutex_unlock(&dummy_list_mutex); |
95d4ec33 EJ |
1582 | } |
1583 | unixctl_command_reply(conn, "OK"); | |
1584 | } | |
1585 | ||
7d7fffe8 AZ |
1586 | static void |
1587 | display_conn_state__(struct ds *s, const char *name, | |
1588 | enum dummy_netdev_conn_state state) | |
1589 | { | |
1590 | ds_put_format(s, "%s: ", name); | |
1591 | ||
1592 | switch (state) { | |
1593 | case CONN_STATE_CONNECTED: | |
1594 | ds_put_cstr(s, "connected\n"); | |
1595 | break; | |
1596 | ||
1597 | case CONN_STATE_NOT_CONNECTED: | |
1598 | ds_put_cstr(s, "disconnected\n"); | |
1599 | break; | |
1600 | ||
1601 | case CONN_STATE_UNKNOWN: | |
1602 | default: | |
1603 | ds_put_cstr(s, "unknown\n"); | |
1604 | break; | |
1605 | }; | |
1606 | } | |
1607 | ||
1608 | static void | |
1609 | netdev_dummy_conn_state(struct unixctl_conn *conn, int argc, | |
1610 | const char *argv[], void *aux OVS_UNUSED) | |
1611 | { | |
1612 | enum dummy_netdev_conn_state state = CONN_STATE_UNKNOWN; | |
1613 | struct ds s; | |
1614 | ||
1615 | ds_init(&s); | |
1616 | ||
1617 | if (argc > 1) { | |
1618 | const char *dev_name = argv[1]; | |
1619 | struct netdev *netdev = netdev_from_name(dev_name); | |
1620 | ||
1621 | if (netdev && is_dummy_class(netdev->netdev_class)) { | |
1622 | struct netdev_dummy *dummy_dev = netdev_dummy_cast(netdev); | |
1623 | ||
1624 | ovs_mutex_lock(&dummy_dev->mutex); | |
1625 | state = dummy_netdev_get_conn_state(&dummy_dev->conn); | |
1626 | ovs_mutex_unlock(&dummy_dev->mutex); | |
1627 | ||
1628 | netdev_close(netdev); | |
1629 | } | |
1630 | display_conn_state__(&s, dev_name, state); | |
1631 | } else { | |
1632 | struct netdev_dummy *netdev; | |
1633 | ||
1634 | ovs_mutex_lock(&dummy_list_mutex); | |
1635 | LIST_FOR_EACH (netdev, list_node, &dummy_list) { | |
1636 | ovs_mutex_lock(&netdev->mutex); | |
1637 | state = dummy_netdev_get_conn_state(&netdev->conn); | |
1638 | ovs_mutex_unlock(&netdev->mutex); | |
1639 | if (state != CONN_STATE_UNKNOWN) { | |
1640 | display_conn_state__(&s, netdev->up.name, state); | |
1641 | } | |
1642 | } | |
1643 | ovs_mutex_unlock(&dummy_list_mutex); | |
1644 | } | |
1645 | ||
1646 | unixctl_command_reply(conn, ds_cstr(&s)); | |
1647 | ds_destroy(&s); | |
1648 | } | |
1649 | ||
a36de779 PS |
1650 | static void |
1651 | netdev_dummy_ip4addr(struct unixctl_conn *conn, int argc OVS_UNUSED, | |
1652 | const char *argv[], void *aux OVS_UNUSED) | |
1653 | { | |
1654 | struct netdev *netdev = netdev_from_name(argv[1]); | |
1655 | ||
1656 | if (netdev && is_dummy_class(netdev->netdev_class)) { | |
e7695092 BP |
1657 | struct in_addr ip, mask; |
1658 | char *error; | |
a36de779 | 1659 | |
e7695092 BP |
1660 | error = ip_parse_masked(argv[2], &ip.s_addr, &mask.s_addr); |
1661 | if (!error) { | |
a36de779 PS |
1662 | netdev_dummy_set_in4(netdev, ip, mask); |
1663 | unixctl_command_reply(conn, "OK"); | |
1664 | } else { | |
e7695092 BP |
1665 | unixctl_command_reply_error(conn, error); |
1666 | free(error); | |
a36de779 | 1667 | } |
2af602f2 TLSC |
1668 | } else { |
1669 | unixctl_command_reply_error(conn, "Unknown Dummy Interface"); | |
1670 | } | |
1671 | ||
1672 | netdev_close(netdev); | |
1673 | } | |
1674 | ||
1675 | static void | |
1676 | netdev_dummy_ip6addr(struct unixctl_conn *conn, int argc OVS_UNUSED, | |
1677 | const char *argv[], void *aux OVS_UNUSED) | |
1678 | { | |
1679 | struct netdev *netdev = netdev_from_name(argv[1]); | |
a36de779 | 1680 | |
2af602f2 | 1681 | if (netdev && is_dummy_class(netdev->netdev_class)) { |
2af602f2 | 1682 | struct in6_addr ip6; |
a8704b50 PS |
1683 | char *error; |
1684 | uint32_t plen; | |
2af602f2 | 1685 | |
a8704b50 PS |
1686 | error = ipv6_parse_cidr(argv[2], &ip6, &plen); |
1687 | if (!error) { | |
1688 | struct in6_addr mask; | |
1689 | ||
1690 | mask = ipv6_create_mask(plen); | |
1691 | netdev_dummy_set_in6(netdev, &ip6, &mask); | |
2af602f2 TLSC |
1692 | unixctl_command_reply(conn, "OK"); |
1693 | } else { | |
a8704b50 PS |
1694 | unixctl_command_reply_error(conn, error); |
1695 | free(error); | |
2af602f2 | 1696 | } |
a36de779 PS |
1697 | netdev_close(netdev); |
1698 | } else { | |
1699 | unixctl_command_reply_error(conn, "Unknown Dummy Interface"); | |
a36de779 PS |
1700 | } |
1701 | ||
2af602f2 | 1702 | netdev_close(netdev); |
a36de779 PS |
1703 | } |
1704 | ||
2af602f2 | 1705 | |
8420c7ad BP |
1706 | static void |
1707 | netdev_dummy_override(const char *type) | |
1708 | { | |
1709 | if (!netdev_unregister_provider(type)) { | |
1710 | struct netdev_class *class; | |
1711 | int error; | |
1712 | ||
1713 | class = xmemdup(&dummy_class, sizeof dummy_class); | |
1714 | class->type = xstrdup(type); | |
1715 | error = netdev_register_provider(class); | |
1716 | if (error) { | |
1717 | VLOG_ERR("%s: failed to register netdev provider (%s)", | |
1718 | type, ovs_strerror(error)); | |
1719 | free(CONST_CAST(char *, class->type)); | |
1720 | free(class); | |
1721 | } | |
1722 | } | |
1723 | } | |
1724 | ||
614c4892 | 1725 | void |
8420c7ad | 1726 | netdev_dummy_register(enum dummy_level level) |
614c4892 | 1727 | { |
9a81a637 IM |
1728 | unixctl_command_register("netdev-dummy/receive", |
1729 | "name [--qid queue_id] packet|flow...", | |
fbac791a | 1730 | 2, INT_MAX, netdev_dummy_receive, NULL); |
95d4ec33 EJ |
1731 | unixctl_command_register("netdev-dummy/set-admin-state", |
1732 | "[netdev] up|down", 1, 2, | |
1733 | netdev_dummy_set_admin_state, NULL); | |
7d7fffe8 AZ |
1734 | unixctl_command_register("netdev-dummy/conn-state", |
1735 | "[netdev]", 0, 1, | |
1736 | netdev_dummy_conn_state, NULL); | |
a36de779 PS |
1737 | unixctl_command_register("netdev-dummy/ip4addr", |
1738 | "[netdev] ipaddr/mask-prefix-len", 2, 2, | |
1739 | netdev_dummy_ip4addr, NULL); | |
2af602f2 TLSC |
1740 | unixctl_command_register("netdev-dummy/ip6addr", |
1741 | "[netdev] ip6addr", 2, 2, | |
1742 | netdev_dummy_ip6addr, NULL); | |
a36de779 | 1743 | |
8420c7ad | 1744 | if (level == DUMMY_OVERRIDE_ALL) { |
0cbfe35d BP |
1745 | struct sset types; |
1746 | const char *type; | |
1747 | ||
1748 | sset_init(&types); | |
1749 | netdev_enumerate_types(&types); | |
1750 | SSET_FOR_EACH (type, &types) { | |
8420c7ad BP |
1751 | if (strcmp(type, "patch")) { |
1752 | netdev_dummy_override(type); | |
0cbfe35d BP |
1753 | } |
1754 | } | |
1755 | sset_destroy(&types); | |
8420c7ad BP |
1756 | } else if (level == DUMMY_OVERRIDE_SYSTEM) { |
1757 | netdev_dummy_override("system"); | |
0cbfe35d BP |
1758 | } |
1759 | netdev_register_provider(&dummy_class); | |
f9176a3a | 1760 | netdev_register_provider(&dummy_pmd_class); |
c060c4cf | 1761 | |
7c54c27f | 1762 | netdev_vport_tunnel_register(); |
614c4892 | 1763 | } |