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777ece09 JG |
1 | /* |
2 | * Copyright (c) 2010 Nicira Networks. | |
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 | * | |
6fcfff1b | 10 | * Unless required by applicable law or agreed to in writing, software |
777ece09 JG |
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> | |
2b9d6589 BP |
18 | |
19 | #include "netdev-vport.h" | |
20 | ||
777ece09 JG |
21 | #include <errno.h> |
22 | #include <fcntl.h> | |
2b9d6589 | 23 | #include <net/if.h> |
777ece09 JG |
24 | #include <sys/ioctl.h> |
25 | ||
26 | #include "list.h" | |
2b9d6589 | 27 | #include "netdev-provider.h" |
777ece09 | 28 | #include "openvswitch/datapath-protocol.h" |
2b9d6589 BP |
29 | #include "openvswitch/tunnel.h" |
30 | #include "packets.h" | |
777ece09 JG |
31 | #include "shash.h" |
32 | #include "socket-util.h" | |
777ece09 JG |
33 | #include "vlog.h" |
34 | ||
d98e6007 | 35 | VLOG_DEFINE_THIS_MODULE(netdev_vport); |
5136ce49 | 36 | |
777ece09 JG |
37 | struct netdev_vport_notifier { |
38 | struct netdev_notifier notifier; | |
39 | struct list list_node; | |
d295e8e9 | 40 | struct shash_node *shash_node; |
777ece09 JG |
41 | }; |
42 | ||
2b9d6589 BP |
43 | struct netdev_dev_vport { |
44 | struct netdev_dev netdev_dev; | |
c3827f61 | 45 | uint64_t config[VPORT_CONFIG_SIZE / 8]; |
2b9d6589 BP |
46 | }; |
47 | ||
48 | struct netdev_vport { | |
49 | struct netdev netdev; | |
50 | }; | |
51 | ||
2b9d6589 | 52 | struct vport_class { |
c3827f61 BP |
53 | struct netdev_class netdev_class; |
54 | int (*parse_config)(const struct netdev_dev *, const struct shash *args, | |
55 | void *config); | |
2b9d6589 BP |
56 | }; |
57 | ||
777ece09 JG |
58 | static struct shash netdev_vport_notifiers = |
59 | SHASH_INITIALIZER(&netdev_vport_notifiers); | |
60 | ||
61 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20); | |
62 | ||
2b9d6589 BP |
63 | static int netdev_vport_do_ioctl(int cmd, void *arg); |
64 | static int netdev_vport_create(const struct netdev_class *, const char *, | |
65 | const struct shash *, struct netdev_dev **); | |
66 | static void netdev_vport_poll_notify(const struct netdev *); | |
67 | ||
68 | static bool | |
69 | is_vport_class(const struct netdev_class *class) | |
777ece09 | 70 | { |
2b9d6589 BP |
71 | return class->create == netdev_vport_create; |
72 | } | |
777ece09 | 73 | |
2b9d6589 BP |
74 | static const struct vport_class * |
75 | vport_class_cast(const struct netdev_class *class) | |
76 | { | |
77 | assert(is_vport_class(class)); | |
78 | return CONTAINER_OF(class, struct vport_class, netdev_class); | |
79 | } | |
80 | ||
81 | static struct netdev_dev_vport * | |
82 | netdev_dev_vport_cast(const struct netdev_dev *netdev_dev) | |
83 | { | |
84 | assert(is_vport_class(netdev_dev_get_class(netdev_dev))); | |
85 | return CONTAINER_OF(netdev_dev, struct netdev_dev_vport, netdev_dev); | |
86 | } | |
87 | ||
88 | static struct netdev_vport * | |
89 | netdev_vport_cast(const struct netdev *netdev) | |
90 | { | |
91 | struct netdev_dev *netdev_dev = netdev_get_dev(netdev); | |
92 | assert(is_vport_class(netdev_dev_get_class(netdev_dev))); | |
93 | return CONTAINER_OF(netdev, struct netdev_vport, netdev); | |
94 | } | |
95 | ||
c3827f61 BP |
96 | /* If 'netdev' is a vport netdev, copies its kernel configuration into |
97 | * 'config'. Otherwise leaves 'config' untouched. */ | |
98 | void | |
99 | netdev_vport_get_config(const struct netdev *netdev, void *config) | |
2b9d6589 | 100 | { |
c3827f61 BP |
101 | const struct netdev_dev *dev = netdev_get_dev(netdev); |
102 | ||
103 | if (is_vport_class(netdev_dev_get_class(dev))) { | |
104 | const struct netdev_dev_vport *vport = netdev_dev_vport_cast(dev); | |
105 | memcpy(config, vport->config, VPORT_CONFIG_SIZE); | |
777ece09 | 106 | } |
2b9d6589 | 107 | } |
777ece09 | 108 | |
2b9d6589 | 109 | static int |
c3827f61 BP |
110 | netdev_vport_create(const struct netdev_class *netdev_class, const char *name, |
111 | const struct shash *args, | |
112 | struct netdev_dev **netdev_devp) | |
2b9d6589 | 113 | { |
c3827f61 BP |
114 | const struct vport_class *vport_class = vport_class_cast(netdev_class); |
115 | struct netdev_dev_vport *dev; | |
116 | int error; | |
2b9d6589 | 117 | |
c3827f61 BP |
118 | dev = xmalloc(sizeof *dev); |
119 | *netdev_devp = &dev->netdev_dev; | |
120 | netdev_dev_init(&dev->netdev_dev, name, netdev_class); | |
2b9d6589 | 121 | |
c3827f61 BP |
122 | memset(dev->config, 0, sizeof dev->config); |
123 | error = vport_class->parse_config(&dev->netdev_dev, args, dev->config); | |
2b9d6589 | 124 | |
c3827f61 BP |
125 | if (error) { |
126 | netdev_dev_uninit(&dev->netdev_dev, true); | |
2b9d6589 | 127 | } |
c3827f61 | 128 | return error; |
777ece09 JG |
129 | } |
130 | ||
2b9d6589 BP |
131 | static void |
132 | netdev_vport_destroy(struct netdev_dev *netdev_dev_) | |
133 | { | |
134 | struct netdev_dev_vport *netdev_dev = netdev_dev_vport_cast(netdev_dev_); | |
135 | ||
136 | free(netdev_dev); | |
137 | } | |
138 | ||
139 | static int | |
140 | netdev_vport_open(struct netdev_dev *netdev_dev_, int ethertype OVS_UNUSED, | |
141 | struct netdev **netdevp) | |
142 | { | |
143 | struct netdev_vport *netdev; | |
144 | ||
145 | netdev = xmalloc(sizeof *netdev); | |
146 | netdev_init(&netdev->netdev, netdev_dev_); | |
147 | ||
148 | *netdevp = &netdev->netdev; | |
149 | return 0; | |
150 | } | |
151 | ||
152 | static void | |
153 | netdev_vport_close(struct netdev *netdev_) | |
154 | { | |
155 | struct netdev_vport *netdev = netdev_vport_cast(netdev_); | |
156 | free(netdev); | |
157 | } | |
158 | ||
159 | static int | |
c3827f61 | 160 | netdev_vport_reconfigure(struct netdev_dev *dev_, |
2b9d6589 BP |
161 | const struct shash *args) |
162 | { | |
c3827f61 BP |
163 | const struct netdev_class *netdev_class = netdev_dev_get_class(dev_); |
164 | const struct vport_class *vport_class = vport_class_cast(netdev_class); | |
165 | struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_); | |
166 | struct odp_port port; | |
167 | int error; | |
168 | ||
169 | memset(&port, 0, sizeof port); | |
170 | strncpy(port.devname, netdev_dev_get_name(dev_), sizeof port.devname); | |
171 | strncpy(port.type, netdev_dev_get_type(dev_), sizeof port.type); | |
172 | error = vport_class->parse_config(dev_, args, port.config); | |
173 | if (!error && memcmp(port.config, dev->config, sizeof dev->config)) { | |
174 | error = netdev_vport_do_ioctl(ODP_VPORT_MOD, &port); | |
175 | if (!error || error == ENODEV) { | |
176 | /* Either reconfiguration succeeded or this vport is not installed | |
177 | * in the kernel (e.g. it hasn't been added to a dpif yet with | |
178 | * dpif_port_add()). */ | |
179 | memcpy(dev->config, port.config, sizeof dev->config); | |
180 | } | |
2b9d6589 | 181 | } |
c3827f61 | 182 | return error; |
2b9d6589 BP |
183 | } |
184 | ||
185 | static int | |
777ece09 JG |
186 | netdev_vport_set_etheraddr(struct netdev *netdev, |
187 | const uint8_t mac[ETH_ADDR_LEN]) | |
188 | { | |
189 | struct odp_vport_ether vport_ether; | |
190 | int err; | |
191 | ||
192 | ovs_strlcpy(vport_ether.devname, netdev_get_name(netdev), | |
193 | sizeof vport_ether.devname); | |
194 | ||
195 | memcpy(vport_ether.ether_addr, mac, ETH_ADDR_LEN); | |
196 | ||
197 | err = netdev_vport_do_ioctl(ODP_VPORT_ETHER_SET, &vport_ether); | |
198 | if (err) { | |
199 | return err; | |
200 | } | |
201 | ||
202 | netdev_vport_poll_notify(netdev); | |
203 | return 0; | |
204 | } | |
205 | ||
2b9d6589 | 206 | static int |
777ece09 JG |
207 | netdev_vport_get_etheraddr(const struct netdev *netdev, |
208 | uint8_t mac[ETH_ADDR_LEN]) | |
209 | { | |
210 | struct odp_vport_ether vport_ether; | |
211 | int err; | |
212 | ||
213 | ovs_strlcpy(vport_ether.devname, netdev_get_name(netdev), | |
214 | sizeof vport_ether.devname); | |
215 | ||
216 | err = netdev_vport_do_ioctl(ODP_VPORT_ETHER_GET, &vport_ether); | |
217 | if (err) { | |
218 | return err; | |
219 | } | |
220 | ||
221 | memcpy(mac, vport_ether.ether_addr, ETH_ADDR_LEN); | |
222 | return 0; | |
223 | } | |
224 | ||
2b9d6589 | 225 | static int |
777ece09 JG |
226 | netdev_vport_get_mtu(const struct netdev *netdev, int *mtup) |
227 | { | |
228 | struct odp_vport_mtu vport_mtu; | |
229 | int err; | |
230 | ||
231 | ovs_strlcpy(vport_mtu.devname, netdev_get_name(netdev), | |
232 | sizeof vport_mtu.devname); | |
233 | ||
234 | err = netdev_vport_do_ioctl(ODP_VPORT_MTU_GET, &vport_mtu); | |
235 | if (err) { | |
236 | return err; | |
237 | } | |
238 | ||
239 | *mtup = vport_mtu.mtu; | |
240 | return 0; | |
241 | } | |
242 | ||
777ece09 JG |
243 | int |
244 | netdev_vport_get_stats(const struct netdev *netdev, struct netdev_stats *stats) | |
245 | { | |
246 | const char *name = netdev_get_name(netdev); | |
247 | struct odp_vport_stats_req ovsr; | |
248 | int err; | |
249 | ||
250 | ovs_strlcpy(ovsr.devname, name, sizeof ovsr.devname); | |
251 | err = netdev_vport_do_ioctl(ODP_VPORT_STATS_GET, &ovsr); | |
252 | if (err) { | |
253 | return err; | |
254 | } | |
255 | ||
256 | stats->rx_packets = ovsr.stats.rx_packets; | |
257 | stats->tx_packets = ovsr.stats.tx_packets; | |
258 | stats->rx_bytes = ovsr.stats.rx_bytes; | |
259 | stats->tx_bytes = ovsr.stats.tx_bytes; | |
260 | stats->rx_errors = ovsr.stats.rx_errors; | |
261 | stats->tx_errors = ovsr.stats.tx_errors; | |
262 | stats->rx_dropped = ovsr.stats.rx_dropped; | |
263 | stats->tx_dropped = ovsr.stats.tx_dropped; | |
ec61a01c | 264 | stats->multicast = ovsr.stats.multicast; |
777ece09 | 265 | stats->collisions = ovsr.stats.collisions; |
ec61a01c BP |
266 | stats->rx_length_errors = ovsr.stats.rx_length_errors; |
267 | stats->rx_over_errors = ovsr.stats.rx_over_errors; | |
268 | stats->rx_crc_errors = ovsr.stats.rx_crc_errors; | |
269 | stats->rx_frame_errors = ovsr.stats.rx_frame_errors; | |
270 | stats->rx_fifo_errors = ovsr.stats.rx_fifo_errors; | |
271 | stats->rx_missed_errors = ovsr.stats.rx_missed_errors; | |
272 | stats->tx_aborted_errors = ovsr.stats.tx_aborted_errors; | |
273 | stats->tx_carrier_errors = ovsr.stats.tx_carrier_errors; | |
274 | stats->tx_fifo_errors = ovsr.stats.tx_fifo_errors; | |
275 | stats->tx_heartbeat_errors = ovsr.stats.tx_heartbeat_errors; | |
276 | stats->tx_window_errors = ovsr.stats.tx_window_errors; | |
777ece09 JG |
277 | |
278 | return 0; | |
279 | } | |
280 | ||
f4b6076a JG |
281 | int |
282 | netdev_vport_set_stats(struct netdev *netdev, const struct netdev_stats *stats) | |
283 | { | |
284 | struct odp_vport_stats_req ovsr; | |
285 | int err; | |
286 | ||
287 | ovs_strlcpy(ovsr.devname, netdev_get_name(netdev), sizeof ovsr.devname); | |
288 | ||
289 | ovsr.stats.rx_packets = stats->rx_packets; | |
290 | ovsr.stats.tx_packets = stats->tx_packets; | |
291 | ovsr.stats.rx_bytes = stats->rx_bytes; | |
292 | ovsr.stats.tx_bytes = stats->tx_bytes; | |
293 | ovsr.stats.rx_errors = stats->rx_errors; | |
294 | ovsr.stats.tx_errors = stats->tx_errors; | |
295 | ovsr.stats.rx_dropped = stats->rx_dropped; | |
296 | ovsr.stats.tx_dropped = stats->tx_dropped; | |
ec61a01c | 297 | ovsr.stats.multicast = stats->multicast; |
f4b6076a | 298 | ovsr.stats.collisions = stats->collisions; |
ec61a01c BP |
299 | ovsr.stats.rx_length_errors = stats->rx_length_errors; |
300 | ovsr.stats.rx_over_errors = stats->rx_over_errors; | |
301 | ovsr.stats.rx_crc_errors = stats->rx_crc_errors; | |
302 | ovsr.stats.rx_frame_errors = stats->rx_frame_errors; | |
303 | ovsr.stats.rx_fifo_errors = stats->rx_fifo_errors; | |
304 | ovsr.stats.rx_missed_errors = stats->rx_missed_errors; | |
305 | ovsr.stats.tx_aborted_errors = stats->tx_aborted_errors; | |
306 | ovsr.stats.tx_carrier_errors = stats->tx_carrier_errors; | |
307 | ovsr.stats.tx_fifo_errors = stats->tx_fifo_errors; | |
308 | ovsr.stats.tx_heartbeat_errors = stats->tx_heartbeat_errors; | |
309 | ovsr.stats.tx_window_errors = stats->tx_window_errors; | |
f4b6076a JG |
310 | |
311 | err = netdev_vport_do_ioctl(ODP_VPORT_STATS_SET, &ovsr); | |
312 | ||
313 | /* If the vport layer doesn't know about the device, that doesn't mean it | |
314 | * doesn't exist (after all were able to open it when netdev_open() was | |
315 | * called), it just means that it isn't attached and we'll be getting | |
316 | * stats a different way. */ | |
317 | if (err == ENODEV) { | |
318 | err = EOPNOTSUPP; | |
319 | } | |
320 | ||
321 | return err; | |
322 | } | |
323 | ||
2b9d6589 | 324 | static int |
777ece09 JG |
325 | netdev_vport_update_flags(struct netdev *netdev OVS_UNUSED, |
326 | enum netdev_flags off, enum netdev_flags on OVS_UNUSED, | |
327 | enum netdev_flags *old_flagsp) | |
328 | { | |
329 | if (off & (NETDEV_UP | NETDEV_PROMISC)) { | |
330 | return EOPNOTSUPP; | |
331 | } | |
332 | ||
333 | *old_flagsp = NETDEV_UP | NETDEV_PROMISC; | |
334 | return 0; | |
335 | } | |
336 | ||
337 | static char * | |
338 | make_poll_name(const struct netdev *netdev) | |
339 | { | |
340 | return xasprintf("%s:%s", netdev_get_type(netdev), netdev_get_name(netdev)); | |
341 | } | |
342 | ||
2b9d6589 | 343 | static int |
777ece09 JG |
344 | netdev_vport_poll_add(struct netdev *netdev, |
345 | void (*cb)(struct netdev_notifier *), void *aux, | |
346 | struct netdev_notifier **notifierp) | |
347 | { | |
348 | char *poll_name = make_poll_name(netdev); | |
349 | struct netdev_vport_notifier *notifier; | |
350 | struct list *list; | |
351 | struct shash_node *shash_node; | |
352 | ||
353 | shash_node = shash_find_data(&netdev_vport_notifiers, poll_name); | |
354 | if (!shash_node) { | |
355 | list = xmalloc(sizeof *list); | |
356 | list_init(list); | |
eb5f3e93 | 357 | shash_node = shash_add(&netdev_vport_notifiers, poll_name, list); |
777ece09 JG |
358 | } else { |
359 | list = shash_node->data; | |
360 | } | |
361 | ||
362 | notifier = xmalloc(sizeof *notifier); | |
363 | netdev_notifier_init(¬ifier->notifier, netdev, cb, aux); | |
364 | list_push_back(list, ¬ifier->list_node); | |
365 | notifier->shash_node = shash_node; | |
366 | ||
367 | *notifierp = ¬ifier->notifier; | |
368 | free(poll_name); | |
369 | ||
370 | return 0; | |
371 | } | |
372 | ||
2b9d6589 | 373 | static void |
777ece09 JG |
374 | netdev_vport_poll_remove(struct netdev_notifier *notifier_) |
375 | { | |
376 | struct netdev_vport_notifier *notifier = | |
377 | CONTAINER_OF(notifier_, struct netdev_vport_notifier, notifier); | |
378 | ||
379 | struct list *list; | |
380 | ||
381 | list = list_remove(¬ifier->list_node); | |
382 | if (list_is_empty(list)) { | |
383 | shash_delete(&netdev_vport_notifiers, notifier->shash_node); | |
384 | free(list); | |
385 | } | |
386 | ||
387 | free(notifier); | |
388 | } | |
2b9d6589 BP |
389 | \f |
390 | /* Helper functions. */ | |
777ece09 | 391 | |
2b9d6589 BP |
392 | static int |
393 | netdev_vport_do_ioctl(int cmd, void *arg) | |
394 | { | |
395 | static int ioctl_fd = -1; | |
396 | ||
397 | if (ioctl_fd < 0) { | |
398 | ioctl_fd = open("/dev/net/dp0", O_RDONLY | O_NONBLOCK); | |
399 | if (ioctl_fd < 0) { | |
400 | VLOG_ERR_RL(&rl, "failed to open ioctl fd: %s", strerror(errno)); | |
401 | return errno; | |
402 | } | |
403 | } | |
404 | ||
405 | return ioctl(ioctl_fd, cmd, arg) ? errno : 0; | |
406 | } | |
407 | ||
408 | static void | |
777ece09 JG |
409 | netdev_vport_poll_notify(const struct netdev *netdev) |
410 | { | |
411 | char *poll_name = make_poll_name(netdev); | |
412 | struct list *list = shash_find_data(&netdev_vport_notifiers, | |
413 | poll_name); | |
414 | ||
415 | if (list) { | |
416 | struct netdev_vport_notifier *notifier; | |
417 | ||
4e8e4213 | 418 | LIST_FOR_EACH (notifier, list_node, list) { |
777ece09 JG |
419 | struct netdev_notifier *n = ¬ifier->notifier; |
420 | n->cb(n); | |
421 | } | |
422 | } | |
423 | ||
424 | free(poll_name); | |
425 | } | |
2b9d6589 BP |
426 | \f |
427 | /* Code specific to individual vport types. */ | |
428 | ||
429 | static int | |
c3827f61 BP |
430 | parse_tunnel_config(const struct netdev_dev *dev, const struct shash *args, |
431 | void *configp) | |
2b9d6589 | 432 | { |
c3827f61 BP |
433 | const char *name = netdev_dev_get_name(dev); |
434 | const char *type = netdev_dev_get_type(dev); | |
435 | bool is_gre = !strcmp(type, "gre"); | |
436 | struct tnl_port_config config; | |
2b9d6589 BP |
437 | struct shash_node *node; |
438 | bool ipsec_ip_set = false; | |
439 | bool ipsec_mech_set = false; | |
440 | ||
73d67a43 | 441 | memset(&config, 0, sizeof config); |
c3827f61 BP |
442 | config.flags |= TNL_F_PMTUD; |
443 | config.flags |= TNL_F_HDR_CACHE; | |
2b9d6589 BP |
444 | |
445 | SHASH_FOR_EACH (node, args) { | |
446 | if (!strcmp(node->name, "remote_ip")) { | |
447 | struct in_addr in_addr; | |
448 | if (lookup_ip(node->data, &in_addr)) { | |
c3827f61 | 449 | VLOG_WARN("%s: bad %s 'remote_ip'", name, type); |
2b9d6589 | 450 | } else { |
c3827f61 | 451 | config.daddr = in_addr.s_addr; |
2b9d6589 BP |
452 | } |
453 | } else if (!strcmp(node->name, "local_ip")) { | |
454 | struct in_addr in_addr; | |
455 | if (lookup_ip(node->data, &in_addr)) { | |
c3827f61 | 456 | VLOG_WARN("%s: bad %s 'local_ip'", name, type); |
2b9d6589 | 457 | } else { |
c3827f61 | 458 | config.saddr = in_addr.s_addr; |
2b9d6589 BP |
459 | } |
460 | } else if (!strcmp(node->name, "key") && is_gre) { | |
461 | if (!strcmp(node->data, "flow")) { | |
c3827f61 BP |
462 | config.flags |= TNL_F_IN_KEY_MATCH; |
463 | config.flags |= TNL_F_OUT_KEY_ACTION; | |
2b9d6589 | 464 | } else { |
c3827f61 | 465 | config.out_key = config.in_key = htonl(atoi(node->data)); |
2b9d6589 BP |
466 | } |
467 | } else if (!strcmp(node->name, "in_key") && is_gre) { | |
468 | if (!strcmp(node->data, "flow")) { | |
c3827f61 | 469 | config.flags |= TNL_F_IN_KEY_MATCH; |
2b9d6589 | 470 | } else { |
c3827f61 | 471 | config.in_key = htonl(atoi(node->data)); |
2b9d6589 BP |
472 | } |
473 | } else if (!strcmp(node->name, "out_key") && is_gre) { | |
474 | if (!strcmp(node->data, "flow")) { | |
c3827f61 | 475 | config.flags |= TNL_F_OUT_KEY_ACTION; |
2b9d6589 | 476 | } else { |
c3827f61 | 477 | config.out_key = htonl(atoi(node->data)); |
2b9d6589 BP |
478 | } |
479 | } else if (!strcmp(node->name, "tos")) { | |
480 | if (!strcmp(node->data, "inherit")) { | |
c3827f61 | 481 | config.flags |= TNL_F_TOS_INHERIT; |
2b9d6589 | 482 | } else { |
c3827f61 | 483 | config.tos = atoi(node->data); |
2b9d6589 BP |
484 | } |
485 | } else if (!strcmp(node->name, "ttl")) { | |
486 | if (!strcmp(node->data, "inherit")) { | |
c3827f61 | 487 | config.flags |= TNL_F_TTL_INHERIT; |
2b9d6589 | 488 | } else { |
c3827f61 | 489 | config.ttl = atoi(node->data); |
2b9d6589 BP |
490 | } |
491 | } else if (!strcmp(node->name, "csum") && is_gre) { | |
492 | if (!strcmp(node->data, "true")) { | |
c3827f61 | 493 | config.flags |= TNL_F_CSUM; |
2b9d6589 BP |
494 | } |
495 | } else if (!strcmp(node->name, "pmtud")) { | |
496 | if (!strcmp(node->data, "false")) { | |
c3827f61 | 497 | config.flags &= ~TNL_F_PMTUD; |
2b9d6589 BP |
498 | } |
499 | } else if (!strcmp(node->name, "header_cache")) { | |
500 | if (!strcmp(node->data, "false")) { | |
c3827f61 | 501 | config.flags &= ~TNL_F_HDR_CACHE; |
2b9d6589 BP |
502 | } |
503 | } else if (!strcmp(node->name, "ipsec_local_ip")) { | |
504 | ipsec_ip_set = true; | |
505 | } else if (!strcmp(node->name, "ipsec_cert") | |
506 | || !strcmp(node->name, "ipsec_psk")) { | |
507 | ipsec_mech_set = true; | |
508 | } else { | |
509 | VLOG_WARN("%s: unknown %s argument '%s'", | |
c3827f61 | 510 | name, type, node->name); |
2b9d6589 BP |
511 | } |
512 | } | |
513 | ||
514 | /* IPsec doesn't work when header caching is enabled. Disable it if the | |
515 | * IPsec local IP address and authentication mechanism have been defined. */ | |
516 | if (ipsec_ip_set && ipsec_mech_set) { | |
517 | VLOG_INFO("%s: header caching disabled due to use of IPsec", name); | |
c3827f61 | 518 | config.flags &= ~TNL_F_HDR_CACHE; |
2b9d6589 BP |
519 | } |
520 | ||
c3827f61 | 521 | if (!config.daddr) { |
2b9d6589 | 522 | VLOG_WARN("%s: %s type requires valid 'remote_ip' argument", |
c3827f61 | 523 | name, type); |
2b9d6589 BP |
524 | return EINVAL; |
525 | } | |
526 | ||
c3827f61 BP |
527 | BUILD_ASSERT(sizeof config <= VPORT_CONFIG_SIZE); |
528 | memcpy(configp, &config, sizeof config); | |
2b9d6589 BP |
529 | return 0; |
530 | } | |
531 | ||
532 | static int | |
c3827f61 BP |
533 | parse_patch_config(const struct netdev_dev *dev, const struct shash *args, |
534 | void *configp) | |
2b9d6589 | 535 | { |
c3827f61 | 536 | const char *name = netdev_dev_get_name(dev); |
2b9d6589 BP |
537 | const char *peer; |
538 | ||
539 | peer = shash_find_data(args, "peer"); | |
540 | if (!peer) { | |
541 | VLOG_WARN("%s: patch type requires valid 'peer' argument", name); | |
542 | return EINVAL; | |
543 | } | |
544 | ||
545 | if (shash_count(args) > 1) { | |
546 | VLOG_WARN("%s: patch type takes only a 'peer' argument", name); | |
547 | return EINVAL; | |
548 | } | |
549 | ||
c3827f61 | 550 | if (strlen(peer) >= MIN(IFNAMSIZ, VPORT_CONFIG_SIZE)) { |
2b9d6589 BP |
551 | VLOG_WARN("%s: patch 'peer' arg too long", name); |
552 | return EINVAL; | |
553 | } | |
554 | ||
555 | if (!strcmp(name, peer)) { | |
556 | VLOG_WARN("%s: patch peer must not be self", name); | |
557 | return EINVAL; | |
558 | } | |
559 | ||
c3827f61 | 560 | strncpy(configp, peer, VPORT_CONFIG_SIZE); |
2b9d6589 BP |
561 | |
562 | return 0; | |
563 | } | |
564 | \f | |
565 | #define VPORT_FUNCTIONS \ | |
566 | NULL, /* init */ \ | |
567 | NULL, /* run */ \ | |
568 | NULL, /* wait */ \ | |
569 | \ | |
570 | netdev_vport_create, \ | |
571 | netdev_vport_destroy, \ | |
572 | netdev_vport_reconfigure, \ | |
573 | \ | |
574 | netdev_vport_open, \ | |
575 | netdev_vport_close, \ | |
576 | \ | |
577 | NULL, /* enumerate */ \ | |
578 | \ | |
579 | NULL, /* recv */ \ | |
580 | NULL, /* recv_wait */ \ | |
581 | NULL, /* drain */ \ | |
582 | \ | |
583 | NULL, /* send */ \ | |
584 | NULL, /* send_wait */ \ | |
585 | \ | |
586 | netdev_vport_set_etheraddr, \ | |
587 | netdev_vport_get_etheraddr, \ | |
588 | netdev_vport_get_mtu, \ | |
589 | NULL, /* get_ifindex */ \ | |
85da620e | 590 | NULL, /* get_carrier */ \ |
2b9d6589 BP |
591 | netdev_vport_get_stats, \ |
592 | netdev_vport_set_stats, \ | |
593 | \ | |
594 | NULL, /* get_features */ \ | |
595 | NULL, /* set_advertisements */ \ | |
596 | NULL, /* get_vlan_vid */ \ | |
597 | \ | |
598 | NULL, /* set_policing */ \ | |
599 | NULL, /* get_qos_types */ \ | |
600 | NULL, /* get_qos_capabilities */ \ | |
601 | NULL, /* get_qos */ \ | |
602 | NULL, /* set_qos */ \ | |
603 | NULL, /* get_queue */ \ | |
604 | NULL, /* set_queue */ \ | |
605 | NULL, /* delete_queue */ \ | |
606 | NULL, /* get_queue_stats */ \ | |
607 | NULL, /* dump_queues */ \ | |
608 | NULL, /* dump_queue_stats */ \ | |
609 | \ | |
610 | NULL, /* get_in4 */ \ | |
611 | NULL, /* set_in4 */ \ | |
612 | NULL, /* get_in6 */ \ | |
613 | NULL, /* add_router */ \ | |
614 | NULL, /* get_next_hop */ \ | |
615 | NULL, /* arp_lookup */ \ | |
616 | \ | |
617 | netdev_vport_update_flags, \ | |
618 | \ | |
619 | netdev_vport_poll_add, \ | |
620 | netdev_vport_poll_remove, | |
621 | ||
2b9d6589 BP |
622 | void |
623 | netdev_vport_register(void) | |
624 | { | |
c3827f61 BP |
625 | static const struct vport_class vport_classes[] = { |
626 | { { "gre", VPORT_FUNCTIONS }, parse_tunnel_config }, | |
627 | { { "capwap", VPORT_FUNCTIONS }, parse_tunnel_config }, | |
628 | { { "patch", VPORT_FUNCTIONS }, parse_patch_config } | |
629 | }; | |
630 | ||
631 | int i; | |
632 | ||
633 | for (i = 0; i < ARRAY_SIZE(vport_classes); i++) { | |
634 | netdev_register_provider(&vport_classes[i].netdev_class); | |
635 | } | |
2b9d6589 | 636 | } |