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Commit | Line | Data |
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f6eb6b20 | 1 | /* |
834d6caf | 2 | * Copyright (c) 2011, 2013 Gaetano Catalli. |
d00409c5 | 3 | * Copyright (c) 2013 YAMAMOTO Takashi. |
f6eb6b20 GL |
4 | * |
5 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
6 | * you may not use this file except in compliance with the License. | |
7 | * You may obtain a copy of the License at: | |
8 | * | |
9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
10 | * | |
11 | * Unless required by applicable law or agreed to in writing, software | |
12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 | * See the License for the specific language governing permissions and | |
15 | * limitations under the License. | |
16 | */ | |
17 | ||
18 | #include <config.h> | |
19 | ||
796223f5 | 20 | #include "netdev-provider.h" |
f6eb6b20 | 21 | #include <stdlib.h> |
f6eb6b20 GL |
22 | #include <errno.h> |
23 | #include <fcntl.h> | |
24 | #include <sys/types.h> | |
25 | #include <sys/time.h> | |
26 | #include <sys/ioctl.h> | |
27 | #include <sys/socket.h> | |
28 | #include <sys/sockio.h> | |
29 | #include <ifaddrs.h> | |
30 | #include <pcap/pcap.h> | |
31 | #include <net/if.h> | |
32 | #include <net/if_dl.h> | |
33 | #include <net/if_media.h> | |
34 | #include <net/if_tap.h> | |
35 | #include <netinet/in.h> | |
666afb55 | 36 | #ifdef HAVE_NET_IF_MIB_H |
f6eb6b20 | 37 | #include <net/if_mib.h> |
666afb55 | 38 | #endif |
f6eb6b20 GL |
39 | #include <poll.h> |
40 | #include <string.h> | |
41 | #include <unistd.h> | |
42 | #include <sys/sysctl.h> | |
d00409c5 YT |
43 | #if defined(__NetBSD__) |
44 | #include <net/route.h> | |
7b6d4b2a YT |
45 | #include <netinet/in.h> |
46 | #include <netinet/if_inarp.h> | |
d00409c5 | 47 | #endif |
f6eb6b20 GL |
48 | |
49 | #include "rtbsd.h" | |
da4a6191 | 50 | #include "connectivity.h" |
f6eb6b20 GL |
51 | #include "coverage.h" |
52 | #include "dynamic-string.h" | |
53 | #include "fatal-signal.h" | |
f6eb6b20 GL |
54 | #include "ofpbuf.h" |
55 | #include "openflow/openflow.h" | |
996e5ae9 | 56 | #include "ovs-thread.h" |
f6eb6b20 GL |
57 | #include "packets.h" |
58 | #include "poll-loop.h" | |
da4a6191 | 59 | #include "seq.h" |
f6eb6b20 | 60 | #include "shash.h" |
da4a6191 | 61 | #include "socket-util.h" |
f6eb6b20 | 62 | #include "svec.h" |
cb22974d | 63 | #include "util.h" |
f6eb6b20 GL |
64 | #include "vlog.h" |
65 | ||
66 | VLOG_DEFINE_THIS_MODULE(netdev_bsd); | |
67 | ||
68 | \f | |
796223f5 BP |
69 | struct netdev_rx_bsd { |
70 | struct netdev_rx up; | |
f6eb6b20 | 71 | |
796223f5 BP |
72 | /* Packet capture descriptor for a system network device. |
73 | * For a tap device this is NULL. */ | |
74 | pcap_t *pcap_handle; | |
f6eb6b20 | 75 | |
796223f5 BP |
76 | /* Selectable file descriptor for the network device. |
77 | * This descriptor will be used for polling operations. */ | |
78 | int fd; | |
f6eb6b20 GL |
79 | }; |
80 | ||
b5d57fc8 BP |
81 | struct netdev_bsd { |
82 | struct netdev up; | |
86383816 BP |
83 | |
84 | /* Never changes after initialization. */ | |
85 | char *kernel_name; | |
86 | ||
87 | /* Protects all members below. */ | |
88 | struct ovs_mutex mutex; | |
89 | ||
f6eb6b20 | 90 | unsigned int cache_valid; |
f6eb6b20 GL |
91 | |
92 | int ifindex; | |
93 | uint8_t etheraddr[ETH_ADDR_LEN]; | |
94 | struct in_addr in4; | |
2b906eca | 95 | struct in_addr netmask; |
f6eb6b20 GL |
96 | struct in6_addr in6; |
97 | int mtu; | |
98 | int carrier; | |
99 | ||
796223f5 BP |
100 | int tap_fd; /* TAP character device, if any, otherwise -1. */ |
101 | ||
102 | /* Used for sending packets on non-tap devices. */ | |
103 | pcap_t *pcap; | |
104 | int fd; | |
f6eb6b20 GL |
105 | }; |
106 | ||
107 | ||
108 | enum { | |
109 | VALID_IFINDEX = 1 << 0, | |
110 | VALID_ETHERADDR = 1 << 1, | |
111 | VALID_IN4 = 1 << 2, | |
112 | VALID_IN6 = 1 << 3, | |
113 | VALID_MTU = 1 << 4, | |
114 | VALID_CARRIER = 1 << 5 | |
115 | }; | |
116 | ||
f6eb6b20 GL |
117 | #define PCAP_SNAPLEN 2048 |
118 | ||
119 | ||
120 | /* | |
121 | * Notifier used to invalidate device informations in case of status change. | |
122 | * | |
123 | * It will be registered with a 'rtbsd_notifier_register()' when the first | |
124 | * device will be created with the call of either 'netdev_bsd_tap_create()' or | |
125 | * 'netdev_bsd_system_create()'. | |
126 | * | |
127 | * The callback associated with this notifier ('netdev_bsd_cache_cb()') will | |
128 | * invalidate cached information about the device. | |
129 | */ | |
130 | static struct rtbsd_notifier netdev_bsd_cache_notifier; | |
131 | static int cache_notifier_refcount; | |
132 | ||
133 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20); | |
134 | ||
f6eb6b20 | 135 | static void destroy_tap(int fd, const char *name); |
b5d57fc8 | 136 | static int get_flags(const struct netdev *, int *flagsp); |
4b609110 | 137 | static int set_flags(const char *, int flags); |
f6eb6b20 | 138 | static int do_set_addr(struct netdev *netdev, |
b72d8dc2 | 139 | unsigned long ioctl_nr, const char *ioctl_name, |
f6eb6b20 GL |
140 | struct in_addr addr); |
141 | static int get_etheraddr(const char *netdev_name, uint8_t ea[ETH_ADDR_LEN]); | |
142 | static int set_etheraddr(const char *netdev_name, int hwaddr_family, | |
143 | int hwaddr_len, const uint8_t[ETH_ADDR_LEN]); | |
144 | static int get_ifindex(const struct netdev *, int *ifindexp); | |
145 | ||
666afb55 YT |
146 | static int ifr_get_flags(const struct ifreq *); |
147 | static void ifr_set_flags(struct ifreq *, int flags); | |
148 | ||
996e5ae9 | 149 | #ifdef __NetBSD__ |
b72d8dc2 | 150 | static int af_link_ioctl(unsigned long command, const void *arg); |
996e5ae9 BP |
151 | #endif |
152 | ||
153 | static void netdev_bsd_run(void); | |
f6eb6b20 GL |
154 | |
155 | static bool | |
156 | is_netdev_bsd_class(const struct netdev_class *netdev_class) | |
157 | { | |
996e5ae9 | 158 | return netdev_class->run == netdev_bsd_run; |
f6eb6b20 GL |
159 | } |
160 | ||
161 | static struct netdev_bsd * | |
162 | netdev_bsd_cast(const struct netdev *netdev) | |
163 | { | |
b5d57fc8 | 164 | ovs_assert(is_netdev_bsd_class(netdev_get_class(netdev))); |
180c6d0b | 165 | return CONTAINER_OF(netdev, struct netdev_bsd, up); |
f6eb6b20 GL |
166 | } |
167 | ||
796223f5 BP |
168 | static struct netdev_rx_bsd * |
169 | netdev_rx_bsd_cast(const struct netdev_rx *rx) | |
170 | { | |
9dc63482 | 171 | ovs_assert(is_netdev_bsd_class(netdev_get_class(rx->netdev))); |
796223f5 BP |
172 | return CONTAINER_OF(rx, struct netdev_rx_bsd, up); |
173 | } | |
174 | ||
87ad1c07 YT |
175 | static const char * |
176 | netdev_get_kernel_name(const struct netdev *netdev) | |
177 | { | |
178 | return netdev_bsd_cast(netdev)->kernel_name; | |
179 | } | |
180 | ||
f6eb6b20 GL |
181 | /* |
182 | * Perform periodic work needed by netdev. In BSD netdevs it checks for any | |
183 | * interface status changes, and eventually calls all the user callbacks. | |
184 | */ | |
185 | static void | |
186 | netdev_bsd_run(void) | |
187 | { | |
188 | rtbsd_notifier_run(); | |
189 | } | |
190 | ||
191 | /* | |
192 | * Arranges for poll_block() to wake up if the "run" member function needs to | |
193 | * be called. | |
194 | */ | |
195 | static void | |
196 | netdev_bsd_wait(void) | |
197 | { | |
198 | rtbsd_notifier_wait(); | |
199 | } | |
200 | ||
f6eb6b20 GL |
201 | /* Invalidate cache in case of interface status change. */ |
202 | static void | |
203 | netdev_bsd_cache_cb(const struct rtbsd_change *change, | |
bb79b46b | 204 | void *aux OVS_UNUSED) |
f6eb6b20 | 205 | { |
b5d57fc8 | 206 | struct netdev_bsd *dev; |
f6eb6b20 GL |
207 | |
208 | if (change) { | |
b5d57fc8 | 209 | struct netdev *base_dev = netdev_from_name(change->if_name); |
f6eb6b20 GL |
210 | |
211 | if (base_dev) { | |
212 | const struct netdev_class *netdev_class = | |
b5d57fc8 | 213 | netdev_get_class(base_dev); |
f6eb6b20 GL |
214 | |
215 | if (is_netdev_bsd_class(netdev_class)) { | |
b5d57fc8 | 216 | dev = netdev_bsd_cast(base_dev); |
f6eb6b20 | 217 | dev->cache_valid = 0; |
da4a6191 | 218 | seq_change(connectivity_seq_get()); |
f6eb6b20 | 219 | } |
2f980d74 | 220 | netdev_close(base_dev); |
f6eb6b20 GL |
221 | } |
222 | } else { | |
223 | /* | |
224 | * XXX the API is lacking, we should be able to iterate on the list of | |
225 | * netdevs without having to store the info in a temp shash. | |
226 | */ | |
227 | struct shash device_shash; | |
228 | struct shash_node *node; | |
229 | ||
230 | shash_init(&device_shash); | |
b5d57fc8 | 231 | netdev_get_devices(&netdev_bsd_class, &device_shash); |
f6eb6b20 | 232 | SHASH_FOR_EACH (node, &device_shash) { |
9da7ae12 BP |
233 | struct netdev *netdev = node->data; |
234 | dev = netdev_bsd_cast(netdev); | |
f6eb6b20 | 235 | dev->cache_valid = 0; |
da4a6191 | 236 | seq_change(connectivity_seq_get()); |
2f980d74 | 237 | netdev_close(netdev); |
f6eb6b20 GL |
238 | } |
239 | shash_destroy(&device_shash); | |
240 | } | |
241 | } | |
242 | ||
243 | static int | |
244 | cache_notifier_ref(void) | |
245 | { | |
246 | int ret = 0; | |
247 | ||
248 | if (!cache_notifier_refcount) { | |
249 | ret = rtbsd_notifier_register(&netdev_bsd_cache_notifier, | |
250 | netdev_bsd_cache_cb, NULL); | |
251 | if (ret) { | |
252 | return ret; | |
253 | } | |
254 | } | |
255 | cache_notifier_refcount++; | |
256 | return 0; | |
257 | } | |
258 | ||
259 | static int | |
260 | cache_notifier_unref(void) | |
261 | { | |
262 | cache_notifier_refcount--; | |
263 | if (cache_notifier_refcount == 0) { | |
264 | rtbsd_notifier_unregister(&netdev_bsd_cache_notifier); | |
265 | } | |
266 | return 0; | |
267 | } | |
268 | ||
9dc63482 BP |
269 | static struct netdev * |
270 | netdev_bsd_alloc(void) | |
271 | { | |
272 | struct netdev_bsd *netdev = xzalloc(sizeof *netdev); | |
273 | return &netdev->up; | |
274 | } | |
275 | ||
f6eb6b20 | 276 | static int |
9dc63482 | 277 | netdev_bsd_construct_system(struct netdev *netdev_) |
f6eb6b20 | 278 | { |
9dc63482 | 279 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
b5d57fc8 | 280 | enum netdev_flags flags; |
f6eb6b20 GL |
281 | int error; |
282 | ||
283 | error = cache_notifier_ref(); | |
284 | if (error) { | |
285 | return error; | |
286 | } | |
287 | ||
834d6caf | 288 | ovs_mutex_init(&netdev->mutex); |
b5d57fc8 | 289 | netdev->tap_fd = -1; |
9dc63482 | 290 | netdev->kernel_name = xstrdup(netdev_->name); |
f6eb6b20 | 291 | |
b5d57fc8 | 292 | /* Verify that the netdev really exists by attempting to read its flags */ |
9dc63482 | 293 | error = netdev_get_flags(netdev_, &flags); |
b5d57fc8 | 294 | if (error == ENXIO) { |
23e29ebb | 295 | free(netdev->kernel_name); |
b5d57fc8 BP |
296 | cache_notifier_unref(); |
297 | return error; | |
298 | } | |
299 | ||
f6eb6b20 GL |
300 | return 0; |
301 | } | |
302 | ||
f6eb6b20 | 303 | static int |
9dc63482 | 304 | netdev_bsd_construct_tap(struct netdev *netdev_) |
f6eb6b20 | 305 | { |
9dc63482 BP |
306 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
307 | const char *name = netdev_->name; | |
f6eb6b20 GL |
308 | int error = 0; |
309 | struct ifreq ifr; | |
87ad1c07 | 310 | char *kernel_name = NULL; |
f6eb6b20 GL |
311 | |
312 | error = cache_notifier_ref(); | |
313 | if (error) { | |
314 | goto error; | |
315 | } | |
316 | ||
f6eb6b20 GL |
317 | memset(&ifr, 0, sizeof(ifr)); |
318 | ||
319 | /* Create a tap device by opening /dev/tap. The TAPGIFNAME ioctl is used | |
320 | * to retrieve the name of the tap device. */ | |
834d6caf | 321 | ovs_mutex_init(&netdev->mutex); |
b5d57fc8 | 322 | netdev->tap_fd = open("/dev/tap", O_RDWR); |
b5d57fc8 | 323 | if (netdev->tap_fd < 0) { |
f6eb6b20 | 324 | error = errno; |
10a89ef0 | 325 | VLOG_WARN("opening \"/dev/tap\" failed: %s", ovs_strerror(error)); |
6de8e4b2 | 326 | goto error_unref_notifier; |
f6eb6b20 GL |
327 | } |
328 | ||
329 | /* Retrieve tap name (e.g. tap0) */ | |
b5d57fc8 | 330 | if (ioctl(netdev->tap_fd, TAPGIFNAME, &ifr) == -1) { |
f6eb6b20 GL |
331 | /* XXX Need to destroy the device? */ |
332 | error = errno; | |
a5440992 | 333 | close(netdev->tap_fd); |
6de8e4b2 | 334 | goto error_unref_notifier; |
f6eb6b20 GL |
335 | } |
336 | ||
337 | /* Change the name of the tap device */ | |
666afb55 | 338 | #if defined(SIOCSIFNAME) |
f6eb6b20 | 339 | ifr.ifr_data = (void *)name; |
259e0b1a BP |
340 | error = af_inet_ioctl(SIOCSIFNAME, &ifr); |
341 | if (error) { | |
b5d57fc8 | 342 | destroy_tap(netdev->tap_fd, ifr.ifr_name); |
6de8e4b2 | 343 | goto error_unref_notifier; |
f6eb6b20 | 344 | } |
87ad1c07 | 345 | kernel_name = xstrdup(name); |
666afb55 YT |
346 | #else |
347 | /* | |
666afb55 YT |
348 | * NetBSD doesn't support inteface renaming. |
349 | */ | |
350 | VLOG_INFO("tap %s is created for bridge %s", ifr.ifr_name, name); | |
87ad1c07 | 351 | kernel_name = xstrdup(ifr.ifr_name); |
666afb55 | 352 | #endif |
f6eb6b20 GL |
353 | |
354 | /* set non-blocking. */ | |
b5d57fc8 | 355 | error = set_nonblocking(netdev->tap_fd); |
f6eb6b20 | 356 | if (error) { |
87ad1c07 | 357 | destroy_tap(netdev->tap_fd, kernel_name); |
6de8e4b2 | 358 | goto error_unref_notifier; |
f6eb6b20 GL |
359 | } |
360 | ||
361 | /* Turn device UP */ | |
666afb55 | 362 | ifr_set_flags(&ifr, IFF_UP); |
87ad1c07 | 363 | strncpy(ifr.ifr_name, kernel_name, sizeof ifr.ifr_name); |
259e0b1a BP |
364 | error = af_inet_ioctl(SIOCSIFFLAGS, &ifr); |
365 | if (error) { | |
87ad1c07 | 366 | destroy_tap(netdev->tap_fd, kernel_name); |
6de8e4b2 | 367 | goto error_unref_notifier; |
f6eb6b20 GL |
368 | } |
369 | ||
87ad1c07 | 370 | netdev->kernel_name = kernel_name; |
f6eb6b20 GL |
371 | |
372 | return 0; | |
373 | ||
6de8e4b2 | 374 | error_unref_notifier: |
86383816 | 375 | ovs_mutex_destroy(&netdev->mutex); |
f6eb6b20 GL |
376 | cache_notifier_unref(); |
377 | error: | |
87ad1c07 | 378 | free(kernel_name); |
f6eb6b20 GL |
379 | return error; |
380 | } | |
381 | ||
382 | static void | |
9dc63482 | 383 | netdev_bsd_destruct(struct netdev *netdev_) |
f6eb6b20 | 384 | { |
b5d57fc8 | 385 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
f6eb6b20 GL |
386 | |
387 | cache_notifier_unref(); | |
388 | ||
b5d57fc8 | 389 | if (netdev->tap_fd >= 0) { |
87ad1c07 | 390 | destroy_tap(netdev->tap_fd, netdev_get_kernel_name(netdev_)); |
f6eb6b20 | 391 | } |
b5d57fc8 BP |
392 | if (netdev->pcap) { |
393 | pcap_close(netdev->pcap); | |
796223f5 | 394 | } |
87ad1c07 | 395 | free(netdev->kernel_name); |
86383816 | 396 | ovs_mutex_destroy(&netdev->mutex); |
9dc63482 BP |
397 | } |
398 | ||
399 | static void | |
400 | netdev_bsd_dealloc(struct netdev *netdev_) | |
401 | { | |
402 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); | |
403 | ||
f6eb6b20 GL |
404 | free(netdev); |
405 | } | |
406 | ||
407 | static int | |
796223f5 | 408 | netdev_bsd_open_pcap(const char *name, pcap_t **pcapp, int *fdp) |
f6eb6b20 | 409 | { |
f6eb6b20 | 410 | char errbuf[PCAP_ERRBUF_SIZE]; |
796223f5 | 411 | pcap_t *pcap = NULL; |
f6eb6b20 | 412 | int one = 1; |
796223f5 BP |
413 | int error; |
414 | int fd; | |
f6eb6b20 | 415 | |
796223f5 | 416 | /* Open the pcap device. The device is opened in non-promiscuous mode |
f6eb6b20 GL |
417 | * because the interface flags are manually set by the caller. */ |
418 | errbuf[0] = '\0'; | |
796223f5 BP |
419 | pcap = pcap_open_live(name, PCAP_SNAPLEN, 0, 1000, errbuf); |
420 | if (!pcap) { | |
421 | VLOG_ERR_RL(&rl, "%s: pcap_open_live failed: %s", name, errbuf); | |
f6eb6b20 GL |
422 | error = EIO; |
423 | goto error; | |
796223f5 BP |
424 | } |
425 | if (errbuf[0] != '\0') { | |
426 | VLOG_WARN_RL(&rl, "%s: pcap_open_live: %s", name, errbuf); | |
f6eb6b20 GL |
427 | } |
428 | ||
796223f5 BP |
429 | /* Get the underlying fd. */ |
430 | fd = pcap_get_selectable_fd(pcap); | |
f6eb6b20 | 431 | if (fd == -1) { |
796223f5 | 432 | VLOG_WARN_RL(&rl, "%s: no selectable file descriptor", name); |
f6eb6b20 GL |
433 | error = errno; |
434 | goto error; | |
435 | } | |
436 | ||
437 | /* Set non-blocking mode. Also the BIOCIMMEDIATE ioctl must be called | |
438 | * on the file descriptor returned by pcap_get_selectable_fd to achieve | |
439 | * a real non-blocking behaviour.*/ | |
796223f5 | 440 | error = pcap_setnonblock(pcap, 1, errbuf); |
f6eb6b20 GL |
441 | if (error == -1) { |
442 | error = errno; | |
443 | goto error; | |
444 | } | |
445 | ||
796223f5 BP |
446 | /* This call assure that reads return immediately upon packet |
447 | * reception. Otherwise, a read will block until either the kernel | |
448 | * buffer becomes full or a timeout occurs. */ | |
449 | if (ioctl(fd, BIOCIMMEDIATE, &one) < 0 ) { | |
450 | VLOG_ERR_RL(&rl, "ioctl(BIOCIMMEDIATE) on %s device failed: %s", | |
10a89ef0 | 451 | name, ovs_strerror(errno)); |
f6eb6b20 GL |
452 | error = errno; |
453 | goto error; | |
454 | } | |
455 | ||
796223f5 BP |
456 | /* Capture only incoming packets. */ |
457 | error = pcap_setdirection(pcap, PCAP_D_IN); | |
f6eb6b20 GL |
458 | if (error == -1) { |
459 | error = errno; | |
460 | goto error; | |
461 | } | |
462 | ||
796223f5 BP |
463 | *pcapp = pcap; |
464 | *fdp = fd; | |
f6eb6b20 GL |
465 | return 0; |
466 | ||
467 | error: | |
796223f5 BP |
468 | if (pcap) { |
469 | pcap_close(pcap); | |
f6eb6b20 | 470 | } |
796223f5 BP |
471 | *pcapp = NULL; |
472 | *fdp = -1; | |
f6eb6b20 GL |
473 | return error; |
474 | } | |
475 | ||
9dc63482 BP |
476 | static struct netdev_rx * |
477 | netdev_bsd_rx_alloc(void) | |
478 | { | |
479 | struct netdev_rx_bsd *rx = xzalloc(sizeof *rx); | |
480 | return &rx->up; | |
481 | } | |
482 | ||
796223f5 | 483 | static int |
9dc63482 | 484 | netdev_bsd_rx_construct(struct netdev_rx *rx_) |
796223f5 | 485 | { |
9dc63482 BP |
486 | struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_); |
487 | struct netdev *netdev_ = rx->up.netdev; | |
b5d57fc8 | 488 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
86383816 | 489 | int error; |
796223f5 | 490 | |
796223f5 | 491 | if (!strcmp(netdev_get_type(netdev_), "tap")) { |
9dc63482 BP |
492 | rx->pcap_handle = NULL; |
493 | rx->fd = netdev->tap_fd; | |
86383816 | 494 | error = 0; |
796223f5 | 495 | } else { |
86383816 BP |
496 | ovs_mutex_lock(&netdev->mutex); |
497 | error = netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_), | |
498 | &rx->pcap_handle, &rx->fd); | |
86383816 | 499 | ovs_mutex_unlock(&netdev->mutex); |
796223f5 BP |
500 | } |
501 | ||
86383816 | 502 | return error; |
796223f5 BP |
503 | } |
504 | ||
505 | static void | |
9dc63482 | 506 | netdev_bsd_rx_destruct(struct netdev_rx *rx_) |
796223f5 BP |
507 | { |
508 | struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_); | |
509 | ||
510 | if (rx->pcap_handle) { | |
511 | pcap_close(rx->pcap_handle); | |
512 | } | |
9dc63482 BP |
513 | } |
514 | ||
515 | static void | |
516 | netdev_bsd_rx_dealloc(struct netdev_rx *rx_) | |
517 | { | |
518 | struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_); | |
519 | ||
796223f5 BP |
520 | free(rx); |
521 | } | |
f6eb6b20 GL |
522 | |
523 | /* The recv callback of the netdev class returns the number of bytes of the | |
524 | * received packet. | |
525 | * | |
526 | * This can be done by the pcap_next() function. Unfortunately pcap_next() does | |
527 | * not make difference between a missing packet on the capture interface and | |
528 | * an error during the file capture. We can use the pcap_dispatch() function | |
529 | * instead, which is able to distinguish between errors and null packet. | |
530 | * | |
531 | * To make pcap_dispatch() returns the number of bytes read from the interface | |
532 | * we need to define the following callback and argument. | |
533 | */ | |
534 | struct pcap_arg { | |
535 | void *data; | |
536 | int size; | |
537 | int retval; | |
538 | }; | |
539 | ||
540 | /* | |
541 | * This callback will be executed on every captured packet. | |
542 | * | |
543 | * If the packet captured by pcap_dispatch() does not fit the pcap buffer, | |
544 | * pcap returns a truncated packet and we follow this behavior. | |
545 | * | |
546 | * The argument args->retval is the packet size in bytes. | |
547 | */ | |
548 | static void | |
549 | proc_pkt(u_char *args_, const struct pcap_pkthdr *hdr, const u_char *packet) | |
550 | { | |
551 | struct pcap_arg *args = (struct pcap_arg *)args_; | |
552 | ||
553 | if (args->size < hdr->len) { | |
554 | VLOG_WARN_RL(&rl, "packet truncated"); | |
555 | args->retval = args->size; | |
556 | } else { | |
557 | args->retval = hdr->len; | |
558 | } | |
559 | ||
560 | /* copy the packet to our buffer */ | |
561 | memcpy(args->data, packet, args->retval); | |
562 | } | |
563 | ||
564 | /* | |
565 | * This function attempts to receive a packet from the specified network | |
566 | * device. It is assumed that the network device is a system device or a tap | |
567 | * device opened as a system one. In this case the read operation is performed | |
796223f5 | 568 | * from rx->pcap. |
f6eb6b20 GL |
569 | */ |
570 | static int | |
796223f5 | 571 | netdev_rx_bsd_recv_pcap(struct netdev_rx_bsd *rx, void *data, size_t size) |
f6eb6b20 GL |
572 | { |
573 | struct pcap_arg arg; | |
574 | int ret; | |
575 | ||
f6eb6b20 GL |
576 | /* prepare the pcap argument to store the packet */ |
577 | arg.size = size; | |
578 | arg.data = data; | |
579 | ||
580 | for (;;) { | |
796223f5 | 581 | ret = pcap_dispatch(rx->pcap_handle, 1, proc_pkt, (u_char *) &arg); |
f6eb6b20 GL |
582 | |
583 | if (ret > 0) { | |
584 | return arg.retval; /* arg.retval < 0 is handled in the caller */ | |
585 | } | |
586 | if (ret == -1) { | |
587 | if (errno == EINTR) { | |
588 | continue; | |
589 | } | |
590 | } | |
591 | ||
592 | return -EAGAIN; | |
593 | } | |
594 | } | |
595 | ||
596 | /* | |
597 | * This function attempts to receive a packet from the specified network | |
796223f5 BP |
598 | * device. It is assumed that the network device is a tap device and |
599 | * 'rx->fd' is initialized with the tap file descriptor. | |
f6eb6b20 GL |
600 | */ |
601 | static int | |
796223f5 | 602 | netdev_rx_bsd_recv_tap(struct netdev_rx_bsd *rx, void *data, size_t size) |
f6eb6b20 | 603 | { |
f6eb6b20 | 604 | for (;;) { |
796223f5 | 605 | ssize_t retval = read(rx->fd, data, size); |
f6eb6b20 GL |
606 | if (retval >= 0) { |
607 | return retval; | |
608 | } else if (errno != EINTR) { | |
609 | if (errno != EAGAIN) { | |
610 | VLOG_WARN_RL(&rl, "error receiving Ethernet packet on %s: %s", | |
10a89ef0 | 611 | ovs_strerror(errno), netdev_rx_get_name(&rx->up)); |
f6eb6b20 GL |
612 | } |
613 | return -errno; | |
614 | } | |
615 | } | |
616 | } | |
617 | ||
f6eb6b20 | 618 | static int |
9dc63482 | 619 | netdev_bsd_rx_recv(struct netdev_rx *rx_, void *data, size_t size) |
f6eb6b20 | 620 | { |
796223f5 | 621 | struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_); |
f6eb6b20 | 622 | |
796223f5 BP |
623 | return (rx->pcap_handle |
624 | ? netdev_rx_bsd_recv_pcap(rx, data, size) | |
625 | : netdev_rx_bsd_recv_tap(rx, data, size)); | |
f6eb6b20 GL |
626 | } |
627 | ||
f6eb6b20 GL |
628 | /* |
629 | * Registers with the poll loop to wake up from the next call to poll_block() | |
796223f5 | 630 | * when a packet is ready to be received with netdev_rx_recv() on 'rx'. |
f6eb6b20 GL |
631 | */ |
632 | static void | |
9dc63482 | 633 | netdev_bsd_rx_wait(struct netdev_rx *rx_) |
f6eb6b20 | 634 | { |
796223f5 | 635 | struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_); |
f6eb6b20 | 636 | |
796223f5 | 637 | poll_fd_wait(rx->fd, POLLIN); |
f6eb6b20 GL |
638 | } |
639 | ||
796223f5 | 640 | /* Discards all packets waiting to be received from 'rx'. */ |
f6eb6b20 | 641 | static int |
9dc63482 | 642 | netdev_bsd_rx_drain(struct netdev_rx *rx_) |
f6eb6b20 GL |
643 | { |
644 | struct ifreq ifr; | |
796223f5 | 645 | struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_); |
f6eb6b20 | 646 | |
87ad1c07 | 647 | strcpy(ifr.ifr_name, netdev_get_kernel_name(netdev_rx_get_netdev(rx_))); |
796223f5 | 648 | if (ioctl(rx->fd, BIOCFLUSH, &ifr) == -1) { |
f6eb6b20 | 649 | VLOG_DBG_RL(&rl, "%s: ioctl(BIOCFLUSH) failed: %s", |
10a89ef0 | 650 | netdev_rx_get_name(rx_), ovs_strerror(errno)); |
f6eb6b20 GL |
651 | return errno; |
652 | } | |
653 | return 0; | |
654 | } | |
655 | ||
656 | /* | |
657 | * Send a packet on the specified network device. The device could be either a | |
658 | * system or a tap device. | |
659 | */ | |
660 | static int | |
661 | netdev_bsd_send(struct netdev *netdev_, const void *data, size_t size) | |
662 | { | |
b5d57fc8 | 663 | struct netdev_bsd *dev = netdev_bsd_cast(netdev_); |
796223f5 | 664 | const char *name = netdev_get_name(netdev_); |
86383816 | 665 | int error; |
f6eb6b20 | 666 | |
86383816 | 667 | ovs_mutex_lock(&dev->mutex); |
796223f5 | 668 | if (dev->tap_fd < 0 && !dev->pcap) { |
86383816 BP |
669 | error = netdev_bsd_open_pcap(name, &dev->pcap, &dev->fd); |
670 | } else { | |
671 | error = 0; | |
f6eb6b20 GL |
672 | } |
673 | ||
86383816 | 674 | while (!error) { |
f6eb6b20 | 675 | ssize_t retval; |
796223f5 BP |
676 | if (dev->tap_fd >= 0) { |
677 | retval = write(dev->tap_fd, data, size); | |
f6eb6b20 | 678 | } else { |
796223f5 | 679 | retval = pcap_inject(dev->pcap, data, size); |
f6eb6b20 GL |
680 | } |
681 | if (retval < 0) { | |
682 | if (errno == EINTR) { | |
683 | continue; | |
86383816 BP |
684 | } else { |
685 | error = errno; | |
686 | if (error != EAGAIN) { | |
687 | VLOG_WARN_RL(&rl, "error sending Ethernet packet on %s: " | |
688 | "%s", name, ovs_strerror(error)); | |
689 | } | |
f6eb6b20 | 690 | } |
f6eb6b20 | 691 | } else if (retval != size) { |
34582733 AS |
692 | VLOG_WARN_RL(&rl, "sent partial Ethernet packet (%"PRIuSIZE"d bytes of " |
693 | "%"PRIuSIZE") on %s", retval, size, name); | |
86383816 | 694 | error = EMSGSIZE; |
f6eb6b20 | 695 | } else { |
86383816 | 696 | break; |
f6eb6b20 GL |
697 | } |
698 | } | |
86383816 BP |
699 | |
700 | ovs_mutex_unlock(&dev->mutex); | |
701 | return error; | |
f6eb6b20 GL |
702 | } |
703 | ||
704 | /* | |
705 | * Registers with the poll loop to wake up from the next call to poll_block() | |
706 | * when the packet transmission queue has sufficient room to transmit a packet | |
707 | * with netdev_send(). | |
708 | */ | |
709 | static void | |
710 | netdev_bsd_send_wait(struct netdev *netdev_) | |
711 | { | |
b5d57fc8 | 712 | struct netdev_bsd *dev = netdev_bsd_cast(netdev_); |
f6eb6b20 | 713 | |
86383816 | 714 | ovs_mutex_lock(&dev->mutex); |
796223f5 | 715 | if (dev->tap_fd >= 0) { |
f6eb6b20 GL |
716 | /* TAP device always accepts packets. */ |
717 | poll_immediate_wake(); | |
796223f5 BP |
718 | } else if (dev->pcap) { |
719 | poll_fd_wait(dev->fd, POLLOUT); | |
720 | } else { | |
721 | /* We haven't even tried to send a packet yet. */ | |
722 | poll_immediate_wake(); | |
f6eb6b20 | 723 | } |
86383816 | 724 | ovs_mutex_unlock(&dev->mutex); |
f6eb6b20 GL |
725 | } |
726 | ||
727 | /* | |
728 | * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful, | |
729 | * otherwise a positive errno value. | |
730 | */ | |
731 | static int | |
732 | netdev_bsd_set_etheraddr(struct netdev *netdev_, | |
bb79b46b | 733 | const uint8_t mac[ETH_ADDR_LEN]) |
f6eb6b20 | 734 | { |
b5d57fc8 | 735 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
86383816 | 736 | int error = 0; |
f6eb6b20 | 737 | |
86383816 | 738 | ovs_mutex_lock(&netdev->mutex); |
b5d57fc8 BP |
739 | if (!(netdev->cache_valid & VALID_ETHERADDR) |
740 | || !eth_addr_equals(netdev->etheraddr, mac)) { | |
87ad1c07 YT |
741 | error = set_etheraddr(netdev_get_kernel_name(netdev_), AF_LINK, |
742 | ETH_ADDR_LEN, mac); | |
f6eb6b20 | 743 | if (!error) { |
b5d57fc8 BP |
744 | netdev->cache_valid |= VALID_ETHERADDR; |
745 | memcpy(netdev->etheraddr, mac, ETH_ADDR_LEN); | |
da4a6191 | 746 | seq_change(connectivity_seq_get()); |
f6eb6b20 | 747 | } |
f6eb6b20 | 748 | } |
86383816 BP |
749 | ovs_mutex_unlock(&netdev->mutex); |
750 | ||
f6eb6b20 GL |
751 | return error; |
752 | } | |
753 | ||
754 | /* | |
755 | * Returns a pointer to 'netdev''s MAC address. The caller must not modify or | |
756 | * free the returned buffer. | |
757 | */ | |
758 | static int | |
759 | netdev_bsd_get_etheraddr(const struct netdev *netdev_, | |
bb79b46b | 760 | uint8_t mac[ETH_ADDR_LEN]) |
f6eb6b20 | 761 | { |
b5d57fc8 | 762 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
86383816 | 763 | int error = 0; |
f6eb6b20 | 764 | |
86383816 | 765 | ovs_mutex_lock(&netdev->mutex); |
b5d57fc8 | 766 | if (!(netdev->cache_valid & VALID_ETHERADDR)) { |
86383816 BP |
767 | error = get_etheraddr(netdev_get_kernel_name(netdev_), |
768 | netdev->etheraddr); | |
769 | if (!error) { | |
770 | netdev->cache_valid |= VALID_ETHERADDR; | |
f6eb6b20 | 771 | } |
f6eb6b20 | 772 | } |
86383816 BP |
773 | if (!error) { |
774 | memcpy(mac, netdev->etheraddr, ETH_ADDR_LEN); | |
775 | } | |
776 | ovs_mutex_unlock(&netdev->mutex); | |
f6eb6b20 | 777 | |
86383816 | 778 | return error; |
f6eb6b20 GL |
779 | } |
780 | ||
781 | /* | |
782 | * Returns the maximum size of transmitted (and received) packets on 'netdev', | |
783 | * in bytes, not including the hardware header; thus, this is typically 1500 | |
784 | * bytes for Ethernet devices. | |
785 | */ | |
786 | static int | |
787 | netdev_bsd_get_mtu(const struct netdev *netdev_, int *mtup) | |
788 | { | |
b5d57fc8 | 789 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
86383816 | 790 | int error = 0; |
f6eb6b20 | 791 | |
86383816 | 792 | ovs_mutex_lock(&netdev->mutex); |
b5d57fc8 | 793 | if (!(netdev->cache_valid & VALID_MTU)) { |
f6eb6b20 | 794 | struct ifreq ifr; |
f6eb6b20 | 795 | |
259e0b1a | 796 | error = af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_), &ifr, |
87ad1c07 | 797 | SIOCGIFMTU, "SIOCGIFMTU"); |
86383816 BP |
798 | if (!error) { |
799 | netdev->mtu = ifr.ifr_mtu; | |
800 | netdev->cache_valid |= VALID_MTU; | |
f6eb6b20 | 801 | } |
f6eb6b20 | 802 | } |
86383816 BP |
803 | if (!error) { |
804 | *mtup = netdev->mtu; | |
805 | } | |
806 | ovs_mutex_unlock(&netdev->mutex); | |
f6eb6b20 | 807 | |
f6eb6b20 GL |
808 | return 0; |
809 | } | |
810 | ||
811 | static int | |
86383816 | 812 | netdev_bsd_get_ifindex(const struct netdev *netdev_) |
f6eb6b20 | 813 | { |
86383816 | 814 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
f6eb6b20 GL |
815 | int ifindex, error; |
816 | ||
86383816 BP |
817 | ovs_mutex_lock(&netdev->mutex); |
818 | error = get_ifindex(netdev_, &ifindex); | |
819 | ovs_mutex_unlock(&netdev->mutex); | |
820 | ||
f6eb6b20 GL |
821 | return error ? -error : ifindex; |
822 | } | |
823 | ||
824 | static int | |
825 | netdev_bsd_get_carrier(const struct netdev *netdev_, bool *carrier) | |
826 | { | |
b5d57fc8 | 827 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
86383816 | 828 | int error = 0; |
f6eb6b20 | 829 | |
86383816 | 830 | ovs_mutex_lock(&netdev->mutex); |
b5d57fc8 | 831 | if (!(netdev->cache_valid & VALID_CARRIER)) { |
f6eb6b20 GL |
832 | struct ifmediareq ifmr; |
833 | ||
834 | memset(&ifmr, 0, sizeof(ifmr)); | |
87ad1c07 YT |
835 | strncpy(ifmr.ifm_name, netdev_get_kernel_name(netdev_), |
836 | sizeof ifmr.ifm_name); | |
f6eb6b20 | 837 | |
259e0b1a | 838 | error = af_inet_ioctl(SIOCGIFMEDIA, &ifmr); |
86383816 BP |
839 | if (!error) { |
840 | netdev->carrier = (ifmr.ifm_status & IFM_ACTIVE) == IFM_ACTIVE; | |
841 | netdev->cache_valid |= VALID_CARRIER; | |
842 | ||
843 | /* If the interface doesn't report whether the media is active, | |
844 | * just assume it is active. */ | |
845 | if ((ifmr.ifm_status & IFM_AVALID) == 0) { | |
846 | netdev->carrier = true; | |
847 | } | |
848 | } else { | |
f6eb6b20 | 849 | VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s", |
259e0b1a | 850 | netdev_get_name(netdev_), ovs_strerror(error)); |
f6eb6b20 GL |
851 | } |
852 | } | |
86383816 BP |
853 | if (!error) { |
854 | *carrier = netdev->carrier; | |
855 | } | |
856 | ovs_mutex_unlock(&netdev->mutex); | |
f6eb6b20 | 857 | |
86383816 | 858 | return error; |
f6eb6b20 GL |
859 | } |
860 | ||
3aacfbb3 YT |
861 | static void |
862 | convert_stats(struct netdev_stats *stats, const struct if_data *ifd) | |
863 | { | |
864 | /* | |
865 | * note: UINT64_MAX means unsupported | |
866 | */ | |
867 | stats->rx_packets = ifd->ifi_ipackets; | |
868 | stats->tx_packets = ifd->ifi_opackets; | |
869 | stats->rx_bytes = ifd->ifi_obytes; | |
870 | stats->tx_bytes = ifd->ifi_ibytes; | |
871 | stats->rx_errors = ifd->ifi_ierrors; | |
872 | stats->tx_errors = ifd->ifi_oerrors; | |
873 | stats->rx_dropped = ifd->ifi_iqdrops; | |
874 | stats->tx_dropped = UINT64_MAX; | |
875 | stats->multicast = ifd->ifi_imcasts; | |
876 | stats->collisions = ifd->ifi_collisions; | |
877 | stats->rx_length_errors = UINT64_MAX; | |
878 | stats->rx_over_errors = UINT64_MAX; | |
879 | stats->rx_crc_errors = UINT64_MAX; | |
880 | stats->rx_frame_errors = UINT64_MAX; | |
881 | stats->rx_fifo_errors = UINT64_MAX; | |
882 | stats->rx_missed_errors = UINT64_MAX; | |
883 | stats->tx_aborted_errors = UINT64_MAX; | |
884 | stats->tx_carrier_errors = UINT64_MAX; | |
885 | stats->tx_fifo_errors = UINT64_MAX; | |
886 | stats->tx_heartbeat_errors = UINT64_MAX; | |
887 | stats->tx_window_errors = UINT64_MAX; | |
888 | } | |
889 | ||
f6eb6b20 GL |
890 | /* Retrieves current device stats for 'netdev'. */ |
891 | static int | |
bf8377a7 | 892 | netdev_bsd_get_stats(const struct netdev *netdev_, struct netdev_stats *stats) |
f6eb6b20 | 893 | { |
666afb55 | 894 | #if defined(__FreeBSD__) |
f6eb6b20 GL |
895 | int if_count, i; |
896 | int mib[6]; | |
897 | size_t len; | |
898 | struct ifmibdata ifmd; | |
899 | ||
900 | ||
901 | mib[0] = CTL_NET; | |
902 | mib[1] = PF_LINK; | |
903 | mib[2] = NETLINK_GENERIC; | |
904 | mib[3] = IFMIB_SYSTEM; | |
905 | mib[4] = IFMIB_IFCOUNT; | |
906 | ||
907 | len = sizeof(if_count); | |
908 | ||
909 | if (sysctl(mib, 5, &if_count, &len, (void *)0, 0) == -1) { | |
910 | VLOG_DBG_RL(&rl, "%s: sysctl failed: %s", | |
10a89ef0 | 911 | netdev_get_name(netdev_), ovs_strerror(errno)); |
f6eb6b20 GL |
912 | return errno; |
913 | } | |
914 | ||
915 | mib[5] = IFDATA_GENERAL; | |
916 | mib[3] = IFMIB_IFDATA; | |
917 | len = sizeof(ifmd); | |
918 | for (i = 1; i <= if_count; i++) { | |
919 | mib[4] = i; //row | |
920 | if (sysctl(mib, 6, &ifmd, &len, (void *)0, 0) == -1) { | |
921 | VLOG_DBG_RL(&rl, "%s: sysctl failed: %s", | |
10a89ef0 | 922 | netdev_get_name(netdev_), ovs_strerror(errno)); |
f6eb6b20 GL |
923 | return errno; |
924 | } else if (!strcmp(ifmd.ifmd_name, netdev_get_name(netdev_))) { | |
3aacfbb3 | 925 | convert_stats(stats, &ifmd.ifmd_data); |
f6eb6b20 GL |
926 | break; |
927 | } | |
928 | } | |
929 | ||
930 | return 0; | |
bf8377a7 YT |
931 | #elif defined(__NetBSD__) |
932 | struct ifdatareq ifdr; | |
996e5ae9 | 933 | int error; |
bf8377a7 YT |
934 | |
935 | memset(&ifdr, 0, sizeof(ifdr)); | |
936 | strncpy(ifdr.ifdr_name, netdev_get_kernel_name(netdev_), | |
937 | sizeof(ifdr.ifdr_name)); | |
996e5ae9 BP |
938 | error = af_link_ioctl(SIOCGIFDATA, &ifdr); |
939 | if (!error) { | |
940 | convert_stats(stats, &ifdr.ifdr_data); | |
bf8377a7 | 941 | } |
996e5ae9 | 942 | return error; |
bf8377a7 YT |
943 | #else |
944 | #error not implemented | |
666afb55 | 945 | #endif |
f6eb6b20 GL |
946 | } |
947 | ||
948 | static uint32_t | |
949 | netdev_bsd_parse_media(int media) | |
950 | { | |
951 | uint32_t supported = 0; | |
952 | bool half_duplex = media & IFM_HDX ? true : false; | |
953 | ||
954 | switch (IFM_SUBTYPE(media)) { | |
955 | case IFM_10_2: | |
956 | case IFM_10_5: | |
957 | case IFM_10_STP: | |
958 | case IFM_10_T: | |
959 | supported |= half_duplex ? NETDEV_F_10MB_HD : NETDEV_F_10MB_FD; | |
960 | supported |= NETDEV_F_COPPER; | |
961 | break; | |
962 | ||
963 | case IFM_10_FL: | |
964 | supported |= half_duplex ? NETDEV_F_10MB_HD : NETDEV_F_10MB_FD; | |
965 | supported |= NETDEV_F_FIBER; | |
966 | break; | |
967 | ||
968 | case IFM_100_T2: | |
969 | case IFM_100_T4: | |
970 | case IFM_100_TX: | |
971 | case IFM_100_VG: | |
972 | supported |= half_duplex ? NETDEV_F_100MB_HD : NETDEV_F_100MB_FD; | |
973 | supported |= NETDEV_F_COPPER; | |
974 | break; | |
975 | ||
976 | case IFM_100_FX: | |
977 | supported |= half_duplex ? NETDEV_F_100MB_HD : NETDEV_F_100MB_FD; | |
978 | supported |= NETDEV_F_FIBER; | |
979 | break; | |
980 | ||
981 | case IFM_1000_CX: | |
982 | case IFM_1000_T: | |
983 | supported |= half_duplex ? NETDEV_F_1GB_HD : NETDEV_F_1GB_FD; | |
984 | supported |= NETDEV_F_COPPER; | |
985 | break; | |
986 | ||
987 | case IFM_1000_LX: | |
988 | case IFM_1000_SX: | |
989 | supported |= half_duplex ? NETDEV_F_1GB_HD : NETDEV_F_1GB_FD; | |
990 | supported |= NETDEV_F_FIBER; | |
991 | break; | |
992 | ||
993 | case IFM_10G_CX4: | |
994 | supported |= NETDEV_F_10GB_FD; | |
995 | supported |= NETDEV_F_COPPER; | |
996 | break; | |
997 | ||
998 | case IFM_10G_LR: | |
999 | case IFM_10G_SR: | |
1000 | supported |= NETDEV_F_10GB_FD; | |
1001 | supported |= NETDEV_F_FIBER; | |
1002 | break; | |
1003 | ||
1004 | default: | |
1005 | return 0; | |
1006 | } | |
1007 | ||
1008 | if (IFM_SUBTYPE(media) == IFM_AUTO) { | |
1009 | supported |= NETDEV_F_AUTONEG; | |
1010 | } | |
1011 | /* | |
1012 | if (media & IFM_ETH_FMASK) { | |
1013 | supported |= NETDEV_F_PAUSE; | |
1014 | } | |
1015 | */ | |
1016 | ||
1017 | return supported; | |
1018 | } | |
1019 | ||
1020 | /* | |
1021 | * Stores the features supported by 'netdev' into each of '*current', | |
1022 | * '*advertised', '*supported', and '*peer' that are non-null. Each value is a | |
1023 | * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if | |
1024 | * successful, otherwise a positive errno value. On failure, all of the | |
1025 | * passed-in values are set to 0. | |
1026 | */ | |
1027 | static int | |
1028 | netdev_bsd_get_features(const struct netdev *netdev, | |
bb79b46b EM |
1029 | enum netdev_features *current, uint32_t *advertised, |
1030 | enum netdev_features *supported, uint32_t *peer) | |
f6eb6b20 GL |
1031 | { |
1032 | struct ifmediareq ifmr; | |
1033 | int *media_list; | |
1034 | int i; | |
1035 | int error; | |
1036 | ||
1037 | ||
1038 | /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */ | |
1039 | ||
1040 | memset(&ifmr, 0, sizeof(ifmr)); | |
1041 | strncpy(ifmr.ifm_name, netdev_get_name(netdev), sizeof ifmr.ifm_name); | |
1042 | ||
1043 | /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the | |
1044 | * number of supported modes, and a second with a buffer to retrieve | |
1045 | * them. */ | |
259e0b1a BP |
1046 | error = af_inet_ioctl(SIOCGIFMEDIA, &ifmr); |
1047 | if (error) { | |
f6eb6b20 | 1048 | VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s", |
259e0b1a BP |
1049 | netdev_get_name(netdev), ovs_strerror(error)); |
1050 | return error; | |
f6eb6b20 GL |
1051 | } |
1052 | ||
1053 | media_list = xcalloc(ifmr.ifm_count, sizeof(int)); | |
1054 | ifmr.ifm_ulist = media_list; | |
1055 | ||
bf1aa7a0 | 1056 | if (IFM_TYPE(ifmr.ifm_current) != IFM_ETHER) { |
f6eb6b20 GL |
1057 | VLOG_DBG_RL(&rl, "%s: doesn't appear to be ethernet", |
1058 | netdev_get_name(netdev)); | |
1059 | error = EINVAL; | |
1060 | goto cleanup; | |
1061 | } | |
1062 | ||
259e0b1a BP |
1063 | error = af_inet_ioctl(SIOCGIFMEDIA, &ifmr); |
1064 | if (error) { | |
f6eb6b20 | 1065 | VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s", |
259e0b1a | 1066 | netdev_get_name(netdev), ovs_strerror(error)); |
f6eb6b20 GL |
1067 | goto cleanup; |
1068 | } | |
1069 | ||
1070 | /* Current settings. */ | |
1071 | *current = netdev_bsd_parse_media(ifmr.ifm_active); | |
1072 | ||
1073 | /* Advertised features. */ | |
1074 | *advertised = netdev_bsd_parse_media(ifmr.ifm_current); | |
1075 | ||
1076 | /* Supported features. */ | |
1077 | *supported = 0; | |
1078 | for (i = 0; i < ifmr.ifm_count; i++) { | |
1079 | *supported |= netdev_bsd_parse_media(ifmr.ifm_ulist[i]); | |
1080 | } | |
1081 | ||
1082 | /* Peer advertisements. */ | |
1083 | *peer = 0; /* XXX */ | |
1084 | ||
1085 | error = 0; | |
1086 | cleanup: | |
1087 | free(media_list); | |
1088 | return error; | |
1089 | } | |
1090 | ||
1091 | /* | |
2b906eca BP |
1092 | * If 'netdev' has an assigned IPv4 address, sets '*in4' to that address and |
1093 | * '*netmask' to its netmask and returns true. Otherwise, returns false. | |
f6eb6b20 GL |
1094 | */ |
1095 | static int | |
1096 | netdev_bsd_get_in4(const struct netdev *netdev_, struct in_addr *in4, | |
1097 | struct in_addr *netmask) | |
1098 | { | |
b5d57fc8 | 1099 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
86383816 | 1100 | int error = 0; |
f6eb6b20 | 1101 | |
86383816 | 1102 | ovs_mutex_lock(&netdev->mutex); |
b5d57fc8 | 1103 | if (!(netdev->cache_valid & VALID_IN4)) { |
f6eb6b20 | 1104 | struct ifreq ifr; |
f6eb6b20 GL |
1105 | |
1106 | ifr.ifr_addr.sa_family = AF_INET; | |
259e0b1a | 1107 | error = af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_), &ifr, |
bb79b46b | 1108 | SIOCGIFADDR, "SIOCGIFADDR"); |
86383816 BP |
1109 | if (!error) { |
1110 | const struct sockaddr_in *sin; | |
f6eb6b20 | 1111 | |
86383816 BP |
1112 | sin = (struct sockaddr_in *) &ifr.ifr_addr; |
1113 | netdev->in4 = sin->sin_addr; | |
1114 | netdev->cache_valid |= VALID_IN4; | |
1115 | error = af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_), &ifr, | |
1116 | SIOCGIFNETMASK, "SIOCGIFNETMASK"); | |
1117 | if (!error) { | |
1118 | *netmask = sin->sin_addr; | |
1119 | } | |
f6eb6b20 | 1120 | } |
f6eb6b20 | 1121 | } |
86383816 BP |
1122 | if (!error) { |
1123 | *in4 = netdev->in4; | |
1124 | *netmask = netdev->netmask; | |
1125 | } | |
1126 | ovs_mutex_unlock(&netdev->mutex); | |
f6eb6b20 | 1127 | |
86383816 | 1128 | return error ? error : in4->s_addr == INADDR_ANY ? EADDRNOTAVAIL : 0; |
f6eb6b20 GL |
1129 | } |
1130 | ||
1131 | /* | |
1132 | * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If | |
1133 | * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a | |
1134 | * positive errno value. | |
1135 | */ | |
1136 | static int | |
1137 | netdev_bsd_set_in4(struct netdev *netdev_, struct in_addr addr, | |
bb79b46b | 1138 | struct in_addr mask) |
f6eb6b20 | 1139 | { |
b5d57fc8 | 1140 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
f6eb6b20 GL |
1141 | int error; |
1142 | ||
86383816 | 1143 | ovs_mutex_lock(&netdev->mutex); |
f6eb6b20 GL |
1144 | error = do_set_addr(netdev_, SIOCSIFADDR, "SIOCSIFADDR", addr); |
1145 | if (!error) { | |
f6eb6b20 GL |
1146 | if (addr.s_addr != INADDR_ANY) { |
1147 | error = do_set_addr(netdev_, SIOCSIFNETMASK, | |
1148 | "SIOCSIFNETMASK", mask); | |
2b906eca BP |
1149 | if (!error) { |
1150 | netdev->cache_valid |= VALID_IN4; | |
1151 | netdev->in4 = addr; | |
1152 | netdev->netmask = mask; | |
1153 | } | |
f6eb6b20 | 1154 | } |
da4a6191 | 1155 | seq_change(connectivity_seq_get()); |
f6eb6b20 | 1156 | } |
86383816 BP |
1157 | ovs_mutex_unlock(&netdev->mutex); |
1158 | ||
f6eb6b20 GL |
1159 | return error; |
1160 | } | |
1161 | ||
1162 | static int | |
1163 | netdev_bsd_get_in6(const struct netdev *netdev_, struct in6_addr *in6) | |
1164 | { | |
b5d57fc8 BP |
1165 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
1166 | if (!(netdev->cache_valid & VALID_IN6)) { | |
f6eb6b20 GL |
1167 | struct ifaddrs *ifa, *head; |
1168 | struct sockaddr_in6 *sin6; | |
1169 | const char *netdev_name = netdev_get_name(netdev_); | |
1170 | ||
1171 | if (getifaddrs(&head) != 0) { | |
1172 | VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name, | |
10a89ef0 | 1173 | ovs_strerror(errno)); |
f6eb6b20 GL |
1174 | return errno; |
1175 | } | |
1176 | ||
1177 | for (ifa = head; ifa; ifa = ifa->ifa_next) { | |
1178 | if (ifa->ifa_addr->sa_family == AF_INET6 && | |
1179 | !strcmp(ifa->ifa_name, netdev_name)) { | |
1180 | sin6 = (struct sockaddr_in6 *)ifa->ifa_addr; | |
1181 | if (sin6) { | |
b5d57fc8 BP |
1182 | memcpy(&netdev->in6, &sin6->sin6_addr, sin6->sin6_len); |
1183 | netdev->cache_valid |= VALID_IN6; | |
1184 | *in6 = netdev->in6; | |
f6eb6b20 GL |
1185 | freeifaddrs(head); |
1186 | return 0; | |
1187 | } | |
1188 | } | |
1189 | } | |
1190 | return EADDRNOTAVAIL; | |
1191 | } | |
b5d57fc8 | 1192 | *in6 = netdev->in6; |
f6eb6b20 GL |
1193 | return 0; |
1194 | } | |
1195 | ||
d00409c5 | 1196 | #if defined(__NetBSD__) |
2f980d74 BP |
1197 | static char * |
1198 | netdev_bsd_kernel_name_to_ovs_name(const char *kernel_name) | |
d00409c5 | 1199 | { |
2f980d74 | 1200 | char *ovs_name = NULL; |
d00409c5 YT |
1201 | struct shash device_shash; |
1202 | struct shash_node *node; | |
1203 | ||
1204 | shash_init(&device_shash); | |
1205 | netdev_get_devices(&netdev_tap_class, &device_shash); | |
1206 | SHASH_FOR_EACH(node, &device_shash) { | |
9da7ae12 BP |
1207 | struct netdev *netdev = node->data; |
1208 | struct netdev_bsd * const dev = netdev_bsd_cast(netdev); | |
d00409c5 YT |
1209 | |
1210 | if (!strcmp(dev->kernel_name, kernel_name)) { | |
2f980d74 BP |
1211 | free(ovs_name); |
1212 | ovs_name = xstrdup(netdev_get_name(&dev->up)); | |
d00409c5 | 1213 | } |
2f980d74 | 1214 | netdev_close(netdev); |
d00409c5 YT |
1215 | } |
1216 | shash_destroy(&device_shash); | |
d00409c5 | 1217 | |
2f980d74 | 1218 | return ovs_name ? ovs_name : xstrdup(kernel_name); |
d00409c5 YT |
1219 | } |
1220 | #endif | |
1221 | ||
1222 | static int | |
ee9e7b17 EM |
1223 | netdev_bsd_get_next_hop(const struct in_addr *host OVS_UNUSED, |
1224 | struct in_addr *next_hop OVS_UNUSED, | |
1225 | char **netdev_name OVS_UNUSED) | |
d00409c5 YT |
1226 | { |
1227 | #if defined(__NetBSD__) | |
1228 | static int seq = 0; | |
1229 | struct sockaddr_in sin; | |
1230 | struct sockaddr_dl sdl; | |
1231 | int s; | |
1232 | int i; | |
1233 | struct { | |
1234 | struct rt_msghdr h; | |
1235 | char space[512]; | |
1236 | } buf; | |
1237 | struct rt_msghdr *rtm = &buf.h; | |
1238 | const pid_t pid = getpid(); | |
1239 | char *cp; | |
1240 | ssize_t ssz; | |
1241 | bool gateway = false; | |
1242 | char *ifname = NULL; | |
1243 | int saved_errno; | |
1244 | ||
1245 | memset(next_hop, 0, sizeof(*next_hop)); | |
1246 | *netdev_name = NULL; | |
1247 | ||
1248 | memset(&sin, 0, sizeof(sin)); | |
1249 | sin.sin_len = sizeof(sin); | |
1250 | sin.sin_family = AF_INET; | |
1251 | sin.sin_port = 0; | |
1252 | sin.sin_addr = *host; | |
1253 | ||
1254 | memset(&sdl, 0, sizeof(sdl)); | |
1255 | sdl.sdl_len = sizeof(sdl); | |
1256 | sdl.sdl_family = AF_LINK; | |
1257 | ||
1258 | s = socket(PF_ROUTE, SOCK_RAW, 0); | |
1259 | memset(&buf, 0, sizeof(buf)); | |
1260 | rtm->rtm_flags = RTF_HOST|RTF_UP; | |
1261 | rtm->rtm_version = RTM_VERSION; | |
1262 | rtm->rtm_addrs = RTA_DST|RTA_IFP; | |
1263 | cp = (void *)&buf.space; | |
1264 | memcpy(cp, &sin, sizeof(sin)); | |
1265 | RT_ADVANCE(cp, (struct sockaddr *)(void *)&sin); | |
1266 | memcpy(cp, &sdl, sizeof(sdl)); | |
1267 | RT_ADVANCE(cp, (struct sockaddr *)(void *)&sdl); | |
1268 | rtm->rtm_msglen = cp - (char *)(void *)rtm; | |
1269 | rtm->rtm_seq = ++seq; | |
1270 | rtm->rtm_type = RTM_GET; | |
1271 | rtm->rtm_pid = pid; | |
1272 | write(s, rtm, rtm->rtm_msglen); | |
1273 | memset(&buf, 0, sizeof(buf)); | |
1274 | do { | |
1275 | ssz = read(s, &buf, sizeof(buf)); | |
1276 | } while (ssz > 0 && (rtm->rtm_seq != seq || rtm->rtm_pid != pid)); | |
1277 | saved_errno = errno; | |
1278 | close(s); | |
1279 | if (ssz <= 0) { | |
1280 | if (ssz < 0) { | |
1281 | return saved_errno; | |
1282 | } | |
1283 | return EPIPE; /* XXX */ | |
1284 | } | |
1285 | cp = (void *)&buf.space; | |
1286 | for (i = 1; i; i <<= 1) { | |
1287 | if ((rtm->rtm_addrs & i) != 0) { | |
1288 | const struct sockaddr *sa = (const void *)cp; | |
1289 | ||
1290 | if ((i == RTA_GATEWAY) && sa->sa_family == AF_INET) { | |
1291 | const struct sockaddr_in * const sin = | |
1292 | (const struct sockaddr_in *)sa; | |
1293 | ||
1294 | *next_hop = sin->sin_addr; | |
1295 | gateway = true; | |
1296 | } | |
1297 | if ((i == RTA_IFP) && sa->sa_family == AF_LINK) { | |
1298 | const struct sockaddr_dl * const sdl = | |
1299 | (const struct sockaddr_dl *)sa; | |
35bacb7f | 1300 | char *kernel_name; |
d00409c5 | 1301 | |
35bacb7f | 1302 | kernel_name = xmemdup0(sdl->sdl_data, sdl->sdl_nlen); |
2f980d74 | 1303 | ifname = netdev_bsd_kernel_name_to_ovs_name(kernel_name); |
d00409c5 YT |
1304 | free(kernel_name); |
1305 | } | |
1306 | RT_ADVANCE(cp, sa); | |
1307 | } | |
1308 | } | |
1309 | if (ifname == NULL) { | |
1310 | return ENXIO; | |
1311 | } | |
1312 | if (!gateway) { | |
1313 | *next_hop = *host; | |
1314 | } | |
1315 | *netdev_name = ifname; | |
1316 | VLOG_DBG("host " IP_FMT " next-hop " IP_FMT " if %s", | |
1317 | IP_ARGS(host->s_addr), IP_ARGS(next_hop->s_addr), *netdev_name); | |
1318 | return 0; | |
1319 | #else | |
1320 | return EOPNOTSUPP; | |
1321 | #endif | |
1322 | } | |
1323 | ||
7b6d4b2a YT |
1324 | static int |
1325 | netdev_bsd_arp_lookup(const struct netdev *netdev OVS_UNUSED, | |
1326 | ovs_be32 ip OVS_UNUSED, | |
1327 | uint8_t mac[ETH_ADDR_LEN] OVS_UNUSED) | |
1328 | { | |
1329 | #if defined(__NetBSD__) | |
1330 | const struct rt_msghdr *rtm; | |
1331 | size_t needed; | |
1332 | char *buf; | |
1333 | const char *cp; | |
1334 | const char *ep; | |
1335 | int mib[6]; | |
1336 | int error; | |
1337 | ||
1338 | buf = NULL; | |
1339 | mib[0] = CTL_NET; | |
1340 | mib[1] = PF_ROUTE; | |
1341 | mib[2] = 0; | |
1342 | mib[3] = AF_INET; | |
1343 | mib[4] = NET_RT_FLAGS; | |
1344 | mib[5] = RTF_LLINFO; | |
1345 | if (sysctl(mib, 6, NULL, &needed, NULL, 0) == -1) { | |
1346 | error = errno; | |
1347 | goto error; | |
1348 | } | |
1349 | buf = xmalloc(needed); | |
1350 | if (sysctl(mib, 6, buf, &needed, NULL, 0) == -1) { | |
1351 | error = errno; | |
1352 | goto error; | |
1353 | } | |
1354 | ep = buf + needed; | |
1355 | for (cp = buf; cp < ep; cp += rtm->rtm_msglen) { | |
1356 | const struct sockaddr_inarp *sina; | |
1357 | const struct sockaddr_dl *sdl; | |
1358 | ||
1359 | rtm = (const void *)cp; | |
1360 | sina = (const void *)(rtm + 1); | |
1361 | if (ip != sina->sin_addr.s_addr) { | |
1362 | continue; | |
1363 | } | |
1364 | sdl = (const void *) | |
1365 | ((const char *)(const void *)sina + RT_ROUNDUP(sina->sin_len)); | |
1366 | if (sdl->sdl_alen == ETH_ADDR_LEN) { | |
1367 | memcpy(mac, &sdl->sdl_data[sdl->sdl_nlen], ETH_ADDR_LEN); | |
1368 | error = 0; | |
1369 | goto error; | |
1370 | } | |
1371 | } | |
1372 | error = ENXIO; | |
1373 | error: | |
1374 | free(buf); | |
1375 | return error; | |
1376 | #else | |
1377 | return EOPNOTSUPP; | |
1378 | #endif | |
1379 | } | |
1380 | ||
f6eb6b20 GL |
1381 | static void |
1382 | make_in4_sockaddr(struct sockaddr *sa, struct in_addr addr) | |
1383 | { | |
1384 | struct sockaddr_in sin; | |
1385 | memset(&sin, 0, sizeof sin); | |
1386 | sin.sin_family = AF_INET; | |
1387 | sin.sin_addr = addr; | |
1388 | sin.sin_port = 0; | |
1389 | ||
1390 | memset(sa, 0, sizeof *sa); | |
1391 | memcpy(sa, &sin, sizeof sin); | |
1392 | } | |
1393 | ||
1394 | static int | |
1395 | do_set_addr(struct netdev *netdev, | |
b72d8dc2 YT |
1396 | unsigned long ioctl_nr, const char *ioctl_name, |
1397 | struct in_addr addr) | |
f6eb6b20 GL |
1398 | { |
1399 | struct ifreq ifr; | |
1400 | make_in4_sockaddr(&ifr.ifr_addr, addr); | |
259e0b1a | 1401 | return af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev), &ifr, ioctl_nr, |
87ad1c07 | 1402 | ioctl_name); |
f6eb6b20 GL |
1403 | } |
1404 | ||
1405 | static int | |
1406 | nd_to_iff_flags(enum netdev_flags nd) | |
1407 | { | |
1408 | int iff = 0; | |
1409 | if (nd & NETDEV_UP) { | |
1410 | iff |= IFF_UP; | |
1411 | } | |
1412 | if (nd & NETDEV_PROMISC) { | |
1413 | iff |= IFF_PROMISC; | |
666afb55 | 1414 | #if defined(IFF_PPROMISC) |
f6eb6b20 | 1415 | iff |= IFF_PPROMISC; |
666afb55 | 1416 | #endif |
f6eb6b20 | 1417 | } |
7ba19d41 AC |
1418 | if (nd & NETDEV_LOOPBACK) { |
1419 | iff |= IFF_LOOPBACK; | |
1420 | } | |
f6eb6b20 GL |
1421 | return iff; |
1422 | } | |
1423 | ||
1424 | static int | |
1425 | iff_to_nd_flags(int iff) | |
1426 | { | |
1427 | enum netdev_flags nd = 0; | |
1428 | if (iff & IFF_UP) { | |
1429 | nd |= NETDEV_UP; | |
1430 | } | |
1431 | if (iff & IFF_PROMISC) { | |
1432 | nd |= NETDEV_PROMISC; | |
1433 | } | |
7ba19d41 AC |
1434 | if (iff & IFF_LOOPBACK) { |
1435 | nd |= NETDEV_LOOPBACK; | |
1436 | } | |
f6eb6b20 GL |
1437 | return nd; |
1438 | } | |
1439 | ||
1440 | static int | |
b5d57fc8 | 1441 | netdev_bsd_update_flags(struct netdev *netdev_, enum netdev_flags off, |
bb79b46b | 1442 | enum netdev_flags on, enum netdev_flags *old_flagsp) |
f6eb6b20 | 1443 | { |
b5d57fc8 | 1444 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
f6eb6b20 GL |
1445 | int old_flags, new_flags; |
1446 | int error; | |
1447 | ||
b5d57fc8 | 1448 | error = get_flags(netdev_, &old_flags); |
f6eb6b20 GL |
1449 | if (!error) { |
1450 | *old_flagsp = iff_to_nd_flags(old_flags); | |
1451 | new_flags = (old_flags & ~nd_to_iff_flags(off)) | nd_to_iff_flags(on); | |
1452 | if (new_flags != old_flags) { | |
87ad1c07 | 1453 | error = set_flags(netdev_get_kernel_name(netdev_), new_flags); |
da4a6191 | 1454 | seq_change(connectivity_seq_get()); |
f6eb6b20 GL |
1455 | } |
1456 | } | |
1457 | return error; | |
1458 | } | |
1459 | ||
f6eb6b20 GL |
1460 | |
1461 | const struct netdev_class netdev_bsd_class = { | |
1462 | "system", | |
1463 | ||
996e5ae9 | 1464 | NULL, /* init */ |
f6eb6b20 GL |
1465 | netdev_bsd_run, |
1466 | netdev_bsd_wait, | |
9dc63482 BP |
1467 | netdev_bsd_alloc, |
1468 | netdev_bsd_construct_system, | |
1469 | netdev_bsd_destruct, | |
1470 | netdev_bsd_dealloc, | |
f6eb6b20 GL |
1471 | NULL, /* get_config */ |
1472 | NULL, /* set_config */ | |
e71336c3 | 1473 | NULL, /* get_tunnel_config */ |
f6eb6b20 | 1474 | |
f6eb6b20 GL |
1475 | netdev_bsd_send, |
1476 | netdev_bsd_send_wait, | |
1477 | ||
1478 | netdev_bsd_set_etheraddr, | |
1479 | netdev_bsd_get_etheraddr, | |
1480 | netdev_bsd_get_mtu, | |
1481 | NULL, /* set_mtu */ | |
1482 | netdev_bsd_get_ifindex, | |
1483 | netdev_bsd_get_carrier, | |
1484 | NULL, /* get_carrier_resets */ | |
1485 | NULL, /* set_miimon_interval */ | |
1486 | netdev_bsd_get_stats, | |
1487 | NULL, /* set_stats */ | |
1488 | ||
1489 | netdev_bsd_get_features, | |
1490 | NULL, /* set_advertisement */ | |
1491 | NULL, /* set_policing */ | |
1492 | NULL, /* get_qos_type */ | |
1493 | NULL, /* get_qos_capabilities */ | |
1494 | NULL, /* get_qos */ | |
1495 | NULL, /* set_qos */ | |
1496 | NULL, /* get_queue */ | |
1497 | NULL, /* set_queue */ | |
1498 | NULL, /* delete_queue */ | |
1499 | NULL, /* get_queue_stats */ | |
d8c5a1ae YT |
1500 | NULL, /* queue_dump_start */ |
1501 | NULL, /* queue_dump_next */ | |
1502 | NULL, /* queue_dump_done */ | |
f6eb6b20 GL |
1503 | NULL, /* dump_queue_stats */ |
1504 | ||
1505 | netdev_bsd_get_in4, | |
1506 | netdev_bsd_set_in4, | |
1507 | netdev_bsd_get_in6, | |
1508 | NULL, /* add_router */ | |
d00409c5 | 1509 | netdev_bsd_get_next_hop, |
275707c3 | 1510 | NULL, /* get_status */ |
7b6d4b2a | 1511 | netdev_bsd_arp_lookup, /* arp_lookup */ |
f6eb6b20 GL |
1512 | |
1513 | netdev_bsd_update_flags, | |
1514 | ||
9dc63482 BP |
1515 | netdev_bsd_rx_alloc, |
1516 | netdev_bsd_rx_construct, | |
1517 | netdev_bsd_rx_destruct, | |
1518 | netdev_bsd_rx_dealloc, | |
1519 | netdev_bsd_rx_recv, | |
1520 | netdev_bsd_rx_wait, | |
1521 | netdev_bsd_rx_drain, | |
f6eb6b20 GL |
1522 | }; |
1523 | ||
1524 | const struct netdev_class netdev_tap_class = { | |
1525 | "tap", | |
1526 | ||
996e5ae9 | 1527 | NULL, /* init */ |
f6eb6b20 GL |
1528 | netdev_bsd_run, |
1529 | netdev_bsd_wait, | |
9dc63482 BP |
1530 | netdev_bsd_alloc, |
1531 | netdev_bsd_construct_tap, | |
1532 | netdev_bsd_destruct, | |
1533 | netdev_bsd_dealloc, | |
f6eb6b20 GL |
1534 | NULL, /* get_config */ |
1535 | NULL, /* set_config */ | |
e71336c3 | 1536 | NULL, /* get_tunnel_config */ |
f6eb6b20 | 1537 | |
f6eb6b20 GL |
1538 | netdev_bsd_send, |
1539 | netdev_bsd_send_wait, | |
1540 | ||
1541 | netdev_bsd_set_etheraddr, | |
1542 | netdev_bsd_get_etheraddr, | |
1543 | netdev_bsd_get_mtu, | |
1544 | NULL, /* set_mtu */ | |
1545 | netdev_bsd_get_ifindex, | |
1546 | netdev_bsd_get_carrier, | |
1547 | NULL, /* get_carrier_resets */ | |
1548 | NULL, /* set_miimon_interval */ | |
1549 | netdev_bsd_get_stats, | |
1550 | NULL, /* set_stats */ | |
1551 | ||
1552 | netdev_bsd_get_features, | |
1553 | NULL, /* set_advertisement */ | |
1554 | NULL, /* set_policing */ | |
1555 | NULL, /* get_qos_type */ | |
1556 | NULL, /* get_qos_capabilities */ | |
1557 | NULL, /* get_qos */ | |
1558 | NULL, /* set_qos */ | |
1559 | NULL, /* get_queue */ | |
1560 | NULL, /* set_queue */ | |
1561 | NULL, /* delete_queue */ | |
1562 | NULL, /* get_queue_stats */ | |
d8c5a1ae YT |
1563 | NULL, /* queue_dump_start */ |
1564 | NULL, /* queue_dump_next */ | |
1565 | NULL, /* queue_dump_done */ | |
f6eb6b20 GL |
1566 | NULL, /* dump_queue_stats */ |
1567 | ||
1568 | netdev_bsd_get_in4, | |
1569 | netdev_bsd_set_in4, | |
1570 | netdev_bsd_get_in6, | |
1571 | NULL, /* add_router */ | |
d00409c5 | 1572 | netdev_bsd_get_next_hop, |
275707c3 | 1573 | NULL, /* get_status */ |
7b6d4b2a | 1574 | netdev_bsd_arp_lookup, /* arp_lookup */ |
f6eb6b20 GL |
1575 | |
1576 | netdev_bsd_update_flags, | |
1577 | ||
9dc63482 BP |
1578 | netdev_bsd_rx_alloc, |
1579 | netdev_bsd_rx_construct, | |
1580 | netdev_bsd_rx_destruct, | |
1581 | netdev_bsd_rx_dealloc, | |
1582 | netdev_bsd_rx_recv, | |
1583 | netdev_bsd_rx_wait, | |
1584 | netdev_bsd_rx_drain, | |
796223f5 | 1585 | }; |
f6eb6b20 GL |
1586 | \f |
1587 | ||
1588 | static void | |
1589 | destroy_tap(int fd, const char *name) | |
1590 | { | |
1591 | struct ifreq ifr; | |
1592 | ||
1593 | close(fd); | |
1594 | strcpy(ifr.ifr_name, name); | |
1595 | /* XXX What to do if this call fails? */ | |
259e0b1a | 1596 | af_inet_ioctl(SIOCIFDESTROY, &ifr); |
f6eb6b20 GL |
1597 | } |
1598 | ||
1599 | static int | |
b5d57fc8 | 1600 | get_flags(const struct netdev *netdev, int *flags) |
f6eb6b20 GL |
1601 | { |
1602 | struct ifreq ifr; | |
1603 | int error; | |
1604 | ||
259e0b1a | 1605 | error = af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev), &ifr, |
b5d57fc8 | 1606 | SIOCGIFFLAGS, "SIOCGIFFLAGS"); |
f6eb6b20 | 1607 | |
666afb55 | 1608 | *flags = ifr_get_flags(&ifr); |
f6eb6b20 GL |
1609 | |
1610 | return error; | |
1611 | } | |
1612 | ||
1613 | static int | |
4b609110 | 1614 | set_flags(const char *name, int flags) |
f6eb6b20 GL |
1615 | { |
1616 | struct ifreq ifr; | |
1617 | ||
666afb55 | 1618 | ifr_set_flags(&ifr, flags); |
f6eb6b20 | 1619 | |
259e0b1a | 1620 | return af_inet_ifreq_ioctl(name, &ifr, SIOCSIFFLAGS, "SIOCSIFFLAGS"); |
f6eb6b20 GL |
1621 | } |
1622 | ||
1623 | static int | |
1624 | get_ifindex(const struct netdev *netdev_, int *ifindexp) | |
1625 | { | |
b5d57fc8 | 1626 | struct netdev_bsd *netdev = netdev_bsd_cast(netdev_); |
f6eb6b20 | 1627 | *ifindexp = 0; |
b5d57fc8 | 1628 | if (!(netdev->cache_valid & VALID_IFINDEX)) { |
f6eb6b20 GL |
1629 | int ifindex = if_nametoindex(netdev_get_name(netdev_)); |
1630 | if (ifindex <= 0) { | |
1631 | return errno; | |
1632 | } | |
b5d57fc8 BP |
1633 | netdev->cache_valid |= VALID_IFINDEX; |
1634 | netdev->ifindex = ifindex; | |
f6eb6b20 | 1635 | } |
b5d57fc8 | 1636 | *ifindexp = netdev->ifindex; |
f6eb6b20 GL |
1637 | return 0; |
1638 | } | |
1639 | ||
1640 | static int | |
1641 | get_etheraddr(const char *netdev_name, uint8_t ea[ETH_ADDR_LEN]) | |
1642 | { | |
1643 | struct ifaddrs *head; | |
1644 | struct ifaddrs *ifa; | |
1645 | struct sockaddr_dl *sdl; | |
1646 | ||
1647 | if (getifaddrs(&head) != 0) { | |
1648 | VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name, | |
10a89ef0 | 1649 | ovs_strerror(errno)); |
f6eb6b20 GL |
1650 | return errno; |
1651 | } | |
1652 | ||
1653 | for (ifa = head; ifa; ifa = ifa->ifa_next) { | |
1654 | if (ifa->ifa_addr->sa_family == AF_LINK) { | |
1655 | if (!strcmp(ifa->ifa_name, netdev_name)) { | |
1656 | sdl = (struct sockaddr_dl *)ifa->ifa_addr; | |
1657 | if (sdl) { | |
1658 | memcpy(ea, LLADDR(sdl), sdl->sdl_alen); | |
1659 | freeifaddrs(head); | |
1660 | return 0; | |
1661 | } | |
1662 | } | |
1663 | } | |
1664 | } | |
1665 | ||
1666 | VLOG_ERR("could not find ethernet address for %s device", netdev_name); | |
1667 | freeifaddrs(head); | |
1668 | return ENODEV; | |
1669 | } | |
1670 | ||
1671 | static int | |
666afb55 YT |
1672 | set_etheraddr(const char *netdev_name OVS_UNUSED, int hwaddr_family OVS_UNUSED, |
1673 | int hwaddr_len OVS_UNUSED, | |
1674 | const uint8_t mac[ETH_ADDR_LEN] OVS_UNUSED) | |
f6eb6b20 | 1675 | { |
8cb67eb5 | 1676 | #if defined(__FreeBSD__) |
f6eb6b20 | 1677 | struct ifreq ifr; |
259e0b1a | 1678 | int error; |
f6eb6b20 GL |
1679 | |
1680 | memset(&ifr, 0, sizeof ifr); | |
1681 | strncpy(ifr.ifr_name, netdev_name, sizeof ifr.ifr_name); | |
1682 | ifr.ifr_addr.sa_family = hwaddr_family; | |
1683 | ifr.ifr_addr.sa_len = hwaddr_len; | |
1684 | memcpy(ifr.ifr_addr.sa_data, mac, hwaddr_len); | |
259e0b1a BP |
1685 | error = af_inet_ioctl(SIOCSIFLLADDR, &ifr); |
1686 | if (error) { | |
f6eb6b20 | 1687 | VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s", |
259e0b1a BP |
1688 | netdev_name, ovs_strerror(error)); |
1689 | return error; | |
f6eb6b20 GL |
1690 | } |
1691 | return 0; | |
8cb67eb5 YT |
1692 | #elif defined(__NetBSD__) |
1693 | struct if_laddrreq req; | |
1694 | struct sockaddr_dl *sdl; | |
1695 | struct sockaddr_storage oldaddr; | |
996e5ae9 | 1696 | int error; |
8cb67eb5 YT |
1697 | |
1698 | /* | |
1699 | * get the old address, add new one, and then remove old one. | |
1700 | */ | |
1701 | ||
1702 | if (hwaddr_len != ETH_ADDR_LEN) { | |
1703 | /* just to be safe about sockaddr storage size */ | |
1704 | return EOPNOTSUPP; | |
1705 | } | |
1706 | memset(&req, 0, sizeof(req)); | |
1707 | strncpy(req.iflr_name, netdev_name, sizeof(req.iflr_name)); | |
1708 | req.addr.ss_len = sizeof(req.addr); | |
1709 | req.addr.ss_family = hwaddr_family; | |
1710 | sdl = (struct sockaddr_dl *)&req.addr; | |
1711 | sdl->sdl_alen = hwaddr_len; | |
996e5ae9 BP |
1712 | |
1713 | error = af_link_ioctl(SIOCGLIFADDR, &req); | |
1714 | if (error) { | |
1715 | return error; | |
8cb67eb5 YT |
1716 | } |
1717 | if (!memcmp(&sdl->sdl_data[sdl->sdl_nlen], mac, hwaddr_len)) { | |
1718 | return 0; | |
1719 | } | |
1720 | oldaddr = req.addr; | |
1721 | ||
1722 | memset(&req, 0, sizeof(req)); | |
1723 | strncpy(req.iflr_name, netdev_name, sizeof(req.iflr_name)); | |
1724 | req.flags = IFLR_ACTIVE; | |
1725 | sdl = (struct sockaddr_dl *)&req.addr; | |
1726 | sdl->sdl_len = offsetof(struct sockaddr_dl, sdl_data) + hwaddr_len; | |
1727 | sdl->sdl_alen = hwaddr_len; | |
1728 | sdl->sdl_family = hwaddr_family; | |
1729 | memcpy(sdl->sdl_data, mac, hwaddr_len); | |
996e5ae9 BP |
1730 | error = af_link_ioctl(SIOCALIFADDR, &req); |
1731 | if (error) { | |
1732 | return error; | |
8cb67eb5 YT |
1733 | } |
1734 | ||
1735 | memset(&req, 0, sizeof(req)); | |
1736 | strncpy(req.iflr_name, netdev_name, sizeof(req.iflr_name)); | |
1737 | req.addr = oldaddr; | |
996e5ae9 | 1738 | return af_link_ioctl(SIOCDLIFADDR, &req); |
8cb67eb5 YT |
1739 | #else |
1740 | #error not implemented | |
666afb55 | 1741 | #endif |
f6eb6b20 GL |
1742 | } |
1743 | ||
666afb55 YT |
1744 | static int |
1745 | ifr_get_flags(const struct ifreq *ifr) | |
1746 | { | |
1747 | #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH | |
c61e1b73 | 1748 | return (ifr->ifr_flagshigh << 16) | ifr->ifr_flags; |
666afb55 | 1749 | #else |
c61e1b73 | 1750 | return ifr->ifr_flags; |
666afb55 YT |
1751 | #endif |
1752 | } | |
1753 | ||
1754 | static void | |
1755 | ifr_set_flags(struct ifreq *ifr, int flags) | |
1756 | { | |
1757 | ifr->ifr_flags = flags; | |
1758 | #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH | |
1759 | ifr->ifr_flagshigh = flags >> 16; | |
1760 | #endif | |
1761 | } | |
996e5ae9 BP |
1762 | |
1763 | /* Calls ioctl() on an AF_LINK sock, passing the specified 'command' and | |
1764 | * 'arg'. Returns 0 if successful, otherwise a positive errno value. */ | |
1765 | int | |
b72d8dc2 | 1766 | af_link_ioctl(unsigned long command, const void *arg) |
996e5ae9 BP |
1767 | { |
1768 | static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER; | |
1769 | static int sock; | |
1770 | ||
1771 | if (ovsthread_once_start(&once)) { | |
1772 | sock = socket(AF_LINK, SOCK_DGRAM, 0); | |
1773 | if (sock < 0) { | |
1774 | sock = -errno; | |
1775 | VLOG_ERR("failed to create link socket: %s", ovs_strerror(errno)); | |
1776 | } | |
1777 | ovsthread_once_done(&once); | |
1778 | } | |
1779 | ||
1780 | return (sock < 0 ? -sock | |
1781 | : ioctl(sock, command, arg) == -1 ? errno | |
1782 | : 0); | |
1783 | } |