2 * Copyright (c) 2011, 2013, 2014 Gaetano Catalli.
3 * Copyright (c) 2013, 2014 YAMAMOTO Takashi.
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:
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
18 #if !defined(__MACH__)
21 #include "netdev-provider.h"
25 #include <sys/types.h>
27 #include <sys/ioctl.h>
28 #include <sys/socket.h>
29 #include <sys/sockio.h>
32 #include <pcap/pcap.h>
34 #include <net/if_dl.h>
35 #include <net/if_media.h>
36 #include <net/if_tap.h>
37 #include <netinet/in.h>
38 #ifdef HAVE_NET_IF_MIB_H
39 #include <net/if_mib.h>
44 #include <sys/sysctl.h>
45 #if defined(__NetBSD__)
46 #include <net/route.h>
47 #include <netinet/if_inarp.h>
52 #include "dp-packet.h"
53 #include "dpif-netdev.h"
54 #include "openvswitch/dynamic-string.h"
55 #include "fatal-signal.h"
56 #include "openflow/openflow.h"
57 #include "ovs-thread.h"
59 #include "poll-loop.h"
61 #include "socket-util.h"
64 #include "openvswitch/vlog.h"
66 VLOG_DEFINE_THIS_MODULE(netdev_bsd);
69 struct netdev_rxq_bsd {
72 /* Packet capture descriptor for a system network device.
73 * For a tap device this is NULL. */
76 /* Selectable file descriptor for the network device.
77 * This descriptor will be used for polling operations. */
84 /* Never changes after initialization. */
87 /* Protects all members below. */
88 struct ovs_mutex mutex;
90 unsigned int cache_valid;
93 struct eth_addr etheraddr;
95 struct in_addr netmask;
100 int tap_fd; /* TAP character device, if any, otherwise -1. */
102 /* Used for sending packets on non-tap devices. */
109 VALID_IFINDEX = 1 << 0,
110 VALID_ETHERADDR = 1 << 1,
114 VALID_CARRIER = 1 << 5
117 #define PCAP_SNAPLEN 2048
121 * Notifier used to invalidate device informations in case of status change.
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()'.
127 * The callback associated with this notifier ('netdev_bsd_cache_cb()') will
128 * invalidate cached information about the device.
130 static struct rtbsd_notifier netdev_bsd_cache_notifier;
131 static int cache_notifier_refcount;
133 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
135 static void destroy_tap(int fd, const char *name);
136 static int get_flags(const struct netdev *, int *flagsp);
137 static int set_flags(const char *, int flags);
138 static int do_set_addr(struct netdev *netdev,
139 unsigned long ioctl_nr, const char *ioctl_name,
140 struct in_addr addr);
141 static int get_etheraddr(const char *netdev_name, struct eth_addr *ea);
142 static int set_etheraddr(const char *netdev_name, int hwaddr_family,
143 int hwaddr_len, const struct eth_addr);
144 static int get_ifindex(const struct netdev *, int *ifindexp);
146 static int ifr_get_flags(const struct ifreq *);
147 static void ifr_set_flags(struct ifreq *, int flags);
150 static int af_link_ioctl(unsigned long command, const void *arg);
153 static void netdev_bsd_run(void);
154 static int netdev_bsd_get_mtu(const struct netdev *netdev_, int *mtup);
157 is_netdev_bsd_class(const struct netdev_class *netdev_class)
159 return netdev_class->run == netdev_bsd_run;
162 static struct netdev_bsd *
163 netdev_bsd_cast(const struct netdev *netdev)
165 ovs_assert(is_netdev_bsd_class(netdev_get_class(netdev)));
166 return CONTAINER_OF(netdev, struct netdev_bsd, up);
169 static struct netdev_rxq_bsd *
170 netdev_rxq_bsd_cast(const struct netdev_rxq *rxq)
172 ovs_assert(is_netdev_bsd_class(netdev_get_class(rxq->netdev)));
173 return CONTAINER_OF(rxq, struct netdev_rxq_bsd, up);
177 netdev_get_kernel_name(const struct netdev *netdev)
179 return netdev_bsd_cast(netdev)->kernel_name;
183 * Perform periodic work needed by netdev. In BSD netdevs it checks for any
184 * interface status changes, and eventually calls all the user callbacks.
189 rtbsd_notifier_run();
193 * Arranges for poll_block() to wake up if the "run" member function needs to
197 netdev_bsd_wait(void)
199 rtbsd_notifier_wait();
202 /* Invalidate cache in case of interface status change. */
204 netdev_bsd_cache_cb(const struct rtbsd_change *change,
205 void *aux OVS_UNUSED)
207 struct netdev_bsd *dev;
210 struct netdev *base_dev = netdev_from_name(change->if_name);
213 const struct netdev_class *netdev_class =
214 netdev_get_class(base_dev);
216 if (is_netdev_bsd_class(netdev_class)) {
217 dev = netdev_bsd_cast(base_dev);
218 dev->cache_valid = 0;
219 netdev_change_seq_changed(base_dev);
221 netdev_close(base_dev);
225 * XXX the API is lacking, we should be able to iterate on the list of
226 * netdevs without having to store the info in a temp shash.
228 struct shash device_shash;
229 struct shash_node *node;
231 shash_init(&device_shash);
232 netdev_get_devices(&netdev_bsd_class, &device_shash);
233 SHASH_FOR_EACH (node, &device_shash) {
234 struct netdev *netdev = node->data;
235 dev = netdev_bsd_cast(netdev);
236 dev->cache_valid = 0;
237 netdev_change_seq_changed(netdev);
238 netdev_close(netdev);
240 shash_destroy(&device_shash);
245 cache_notifier_ref(void)
249 if (!cache_notifier_refcount) {
250 ret = rtbsd_notifier_register(&netdev_bsd_cache_notifier,
251 netdev_bsd_cache_cb, NULL);
256 cache_notifier_refcount++;
261 cache_notifier_unref(void)
263 cache_notifier_refcount--;
264 if (cache_notifier_refcount == 0) {
265 rtbsd_notifier_unregister(&netdev_bsd_cache_notifier);
270 static struct netdev *
271 netdev_bsd_alloc(void)
273 struct netdev_bsd *netdev = xzalloc(sizeof *netdev);
278 netdev_bsd_construct_system(struct netdev *netdev_)
280 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
281 enum netdev_flags flags;
284 error = cache_notifier_ref();
289 ovs_mutex_init(&netdev->mutex);
291 netdev->kernel_name = xstrdup(netdev_->name);
293 /* Verify that the netdev really exists by attempting to read its flags */
294 error = netdev_get_flags(netdev_, &flags);
295 if (error == ENXIO) {
296 free(netdev->kernel_name);
297 cache_notifier_unref();
298 ovs_mutex_destroy(&netdev->mutex);
306 netdev_bsd_construct_tap(struct netdev *netdev_)
308 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
309 const char *name = netdev_->name;
312 char *kernel_name = NULL;
314 error = cache_notifier_ref();
319 memset(&ifr, 0, sizeof(ifr));
321 /* Create a tap device by opening /dev/tap. The TAPGIFNAME ioctl is used
322 * to retrieve the name of the tap device. */
323 ovs_mutex_init(&netdev->mutex);
324 netdev->tap_fd = open("/dev/tap", O_RDWR);
325 if (netdev->tap_fd < 0) {
327 VLOG_WARN("opening \"/dev/tap\" failed: %s", ovs_strerror(error));
328 goto error_unref_notifier;
331 /* Retrieve tap name (e.g. tap0) */
332 if (ioctl(netdev->tap_fd, TAPGIFNAME, &ifr) == -1) {
333 /* XXX Need to destroy the device? */
335 close(netdev->tap_fd);
336 goto error_unref_notifier;
339 /* Change the name of the tap device */
340 #if defined(SIOCSIFNAME)
341 ifr.ifr_data = (void *)name;
342 error = af_inet_ioctl(SIOCSIFNAME, &ifr);
344 destroy_tap(netdev->tap_fd, ifr.ifr_name);
345 goto error_unref_notifier;
347 kernel_name = xstrdup(name);
350 * NetBSD doesn't support inteface renaming.
352 VLOG_INFO("tap %s is created for bridge %s", ifr.ifr_name, name);
353 kernel_name = xstrdup(ifr.ifr_name);
356 /* set non-blocking. */
357 error = set_nonblocking(netdev->tap_fd);
359 destroy_tap(netdev->tap_fd, kernel_name);
360 goto error_unref_notifier;
364 ifr_set_flags(&ifr, IFF_UP);
365 ovs_strlcpy(ifr.ifr_name, kernel_name, sizeof ifr.ifr_name);
366 error = af_inet_ioctl(SIOCSIFFLAGS, &ifr);
368 destroy_tap(netdev->tap_fd, kernel_name);
369 goto error_unref_notifier;
372 netdev->kernel_name = kernel_name;
376 error_unref_notifier:
377 ovs_mutex_destroy(&netdev->mutex);
378 cache_notifier_unref();
385 netdev_bsd_destruct(struct netdev *netdev_)
387 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
389 cache_notifier_unref();
391 if (netdev->tap_fd >= 0) {
392 destroy_tap(netdev->tap_fd, netdev_get_kernel_name(netdev_));
395 pcap_close(netdev->pcap);
397 free(netdev->kernel_name);
398 ovs_mutex_destroy(&netdev->mutex);
402 netdev_bsd_dealloc(struct netdev *netdev_)
404 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
410 netdev_bsd_open_pcap(const char *name, pcap_t **pcapp, int *fdp)
412 char errbuf[PCAP_ERRBUF_SIZE];
418 /* Open the pcap device. The device is opened in non-promiscuous mode
419 * because the interface flags are manually set by the caller. */
421 pcap = pcap_open_live(name, PCAP_SNAPLEN, 0, 1000, errbuf);
423 VLOG_ERR_RL(&rl, "%s: pcap_open_live failed: %s", name, errbuf);
427 if (errbuf[0] != '\0') {
428 VLOG_WARN_RL(&rl, "%s: pcap_open_live: %s", name, errbuf);
431 /* Get the underlying fd. */
432 fd = pcap_get_selectable_fd(pcap);
434 VLOG_WARN_RL(&rl, "%s: no selectable file descriptor", name);
439 /* Set non-blocking mode. Also the BIOCIMMEDIATE ioctl must be called
440 * on the file descriptor returned by pcap_get_selectable_fd to achieve
441 * a real non-blocking behaviour.*/
442 error = pcap_setnonblock(pcap, 1, errbuf);
448 /* This call assure that reads return immediately upon packet
449 * reception. Otherwise, a read will block until either the kernel
450 * buffer becomes full or a timeout occurs. */
451 if (ioctl(fd, BIOCIMMEDIATE, &one) < 0 ) {
452 VLOG_ERR_RL(&rl, "ioctl(BIOCIMMEDIATE) on %s device failed: %s",
453 name, ovs_strerror(errno));
458 /* Capture only incoming packets. */
459 error = pcap_setdirection(pcap, PCAP_D_IN);
478 static struct netdev_rxq *
479 netdev_bsd_rxq_alloc(void)
481 struct netdev_rxq_bsd *rxq = xzalloc(sizeof *rxq);
486 netdev_bsd_rxq_construct(struct netdev_rxq *rxq_)
488 struct netdev_rxq_bsd *rxq = netdev_rxq_bsd_cast(rxq_);
489 struct netdev *netdev_ = rxq->up.netdev;
490 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
493 if (!strcmp(netdev_get_type(netdev_), "tap")) {
494 rxq->pcap_handle = NULL;
495 rxq->fd = netdev->tap_fd;
498 ovs_mutex_lock(&netdev->mutex);
499 error = netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_),
500 &rxq->pcap_handle, &rxq->fd);
501 ovs_mutex_unlock(&netdev->mutex);
508 netdev_bsd_rxq_destruct(struct netdev_rxq *rxq_)
510 struct netdev_rxq_bsd *rxq = netdev_rxq_bsd_cast(rxq_);
512 if (rxq->pcap_handle) {
513 pcap_close(rxq->pcap_handle);
518 netdev_bsd_rxq_dealloc(struct netdev_rxq *rxq_)
520 struct netdev_rxq_bsd *rxq = netdev_rxq_bsd_cast(rxq_);
525 /* The recv callback of the netdev class returns the number of bytes of the
528 * This can be done by the pcap_next() function. Unfortunately pcap_next() does
529 * not make difference between a missing packet on the capture interface and
530 * an error during the file capture. We can use the pcap_dispatch() function
531 * instead, which is able to distinguish between errors and null packet.
533 * To make pcap_dispatch() returns the number of bytes read from the interface
534 * we need to define the following callback and argument.
543 * This callback will be executed on every captured packet.
545 * If the packet captured by pcap_dispatch() does not fit the pcap buffer,
546 * pcap returns a truncated packet and we follow this behavior.
548 * The argument args->retval is the packet size in bytes.
551 proc_pkt(u_char *args_, const struct pcap_pkthdr *hdr, const u_char *packet)
553 struct pcap_arg *args = ALIGNED_CAST(struct pcap_arg *, args_);
555 if (args->size < hdr->len) {
556 VLOG_WARN_RL(&rl, "packet truncated");
557 args->retval = args->size;
559 args->retval = hdr->len;
562 /* copy the packet to our buffer */
563 memcpy(args->data, packet, args->retval);
567 * This function attempts to receive a packet from the specified network
568 * device. It is assumed that the network device is a system device or a tap
569 * device opened as a system one. In this case the read operation is performed
573 netdev_rxq_bsd_recv_pcap(struct netdev_rxq_bsd *rxq, struct dp_packet *buffer)
578 /* prepare the pcap argument to store the packet */
579 arg.size = dp_packet_tailroom(buffer);
580 arg.data = dp_packet_data(buffer);
583 ret = pcap_dispatch(rxq->pcap_handle, 1, proc_pkt, (u_char *) &arg);
586 dp_packet_set_size(buffer, dp_packet_size(buffer) + arg.retval);
590 if (errno == EINTR) {
600 * This function attempts to receive a packet from the specified network
601 * device. It is assumed that the network device is a tap device and
602 * 'rxq->fd' is initialized with the tap file descriptor.
605 netdev_rxq_bsd_recv_tap(struct netdev_rxq_bsd *rxq, struct dp_packet *buffer)
607 size_t size = dp_packet_tailroom(buffer);
610 ssize_t retval = read(rxq->fd, dp_packet_data(buffer), size);
612 dp_packet_set_size(buffer, dp_packet_size(buffer) + retval);
614 } else if (errno != EINTR) {
615 if (errno != EAGAIN) {
616 VLOG_WARN_RL(&rl, "error receiving Ethernet packet on %s: %s",
617 ovs_strerror(errno), netdev_rxq_get_name(&rxq->up));
625 netdev_bsd_rxq_recv(struct netdev_rxq *rxq_, struct dp_packet **packets,
628 struct netdev_rxq_bsd *rxq = netdev_rxq_bsd_cast(rxq_);
629 struct netdev *netdev = rxq->up.netdev;
630 struct dp_packet *packet;
634 if (netdev_bsd_get_mtu(netdev, &mtu)) {
635 mtu = ETH_PAYLOAD_MAX;
638 packet = dp_packet_new_with_headroom(VLAN_ETH_HEADER_LEN + mtu,
640 retval = (rxq->pcap_handle
641 ? netdev_rxq_bsd_recv_pcap(rxq, packet)
642 : netdev_rxq_bsd_recv_tap(rxq, packet));
645 dp_packet_delete(packet);
647 dp_packet_pad(packet);
648 dp_packet_rss_invalidate(packet);
656 * Registers with the poll loop to wake up from the next call to poll_block()
657 * when a packet is ready to be received with netdev_rxq_recv() on 'rxq'.
660 netdev_bsd_rxq_wait(struct netdev_rxq *rxq_)
662 struct netdev_rxq_bsd *rxq = netdev_rxq_bsd_cast(rxq_);
664 poll_fd_wait(rxq->fd, POLLIN);
667 /* Discards all packets waiting to be received from 'rxq'. */
669 netdev_bsd_rxq_drain(struct netdev_rxq *rxq_)
672 struct netdev_rxq_bsd *rxq = netdev_rxq_bsd_cast(rxq_);
674 strcpy(ifr.ifr_name, netdev_get_kernel_name(netdev_rxq_get_netdev(rxq_)));
675 if (ioctl(rxq->fd, BIOCFLUSH, &ifr) == -1) {
676 VLOG_DBG_RL(&rl, "%s: ioctl(BIOCFLUSH) failed: %s",
677 netdev_rxq_get_name(rxq_), ovs_strerror(errno));
684 * Send a packet on the specified network device. The device could be either a
685 * system or a tap device.
688 netdev_bsd_send(struct netdev *netdev_, int qid OVS_UNUSED,
689 struct dp_packet **pkts, int cnt, bool may_steal)
691 struct netdev_bsd *dev = netdev_bsd_cast(netdev_);
692 const char *name = netdev_get_name(netdev_);
696 ovs_mutex_lock(&dev->mutex);
697 if (dev->tap_fd < 0 && !dev->pcap) {
698 error = netdev_bsd_open_pcap(name, &dev->pcap, &dev->fd);
703 for (i = 0; i < cnt; i++) {
704 const void *data = dp_packet_data(pkts[i]);
705 size_t size = dp_packet_size(pkts[i]);
709 if (dev->tap_fd >= 0) {
710 retval = write(dev->tap_fd, data, size);
712 retval = pcap_inject(dev->pcap, data, size);
715 if (errno == EINTR) {
719 if (error != EAGAIN) {
720 VLOG_WARN_RL(&rl, "error sending Ethernet packet on"
721 " %s: %s", name, ovs_strerror(error));
724 } else if (retval != size) {
725 VLOG_WARN_RL(&rl, "sent partial Ethernet packet "
726 "(%"PRIuSIZE" bytes of "
727 "%"PRIuSIZE") on %s", retval, size, name);
735 ovs_mutex_unlock(&dev->mutex);
737 for (i = 0; i < cnt; i++) {
738 dp_packet_delete(pkts[i]);
746 * Registers with the poll loop to wake up from the next call to poll_block()
747 * when the packet transmission queue has sufficient room to transmit a packet
748 * with netdev_send().
751 netdev_bsd_send_wait(struct netdev *netdev_, int qid OVS_UNUSED)
753 struct netdev_bsd *dev = netdev_bsd_cast(netdev_);
755 ovs_mutex_lock(&dev->mutex);
756 if (dev->tap_fd >= 0) {
757 /* TAP device always accepts packets. */
758 poll_immediate_wake();
759 } else if (dev->pcap) {
760 poll_fd_wait(dev->fd, POLLOUT);
762 /* We haven't even tried to send a packet yet. */
763 poll_immediate_wake();
765 ovs_mutex_unlock(&dev->mutex);
769 * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful,
770 * otherwise a positive errno value.
773 netdev_bsd_set_etheraddr(struct netdev *netdev_,
774 const struct eth_addr mac)
776 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
779 ovs_mutex_lock(&netdev->mutex);
780 if (!(netdev->cache_valid & VALID_ETHERADDR)
781 || !eth_addr_equals(netdev->etheraddr, mac)) {
782 error = set_etheraddr(netdev_get_kernel_name(netdev_), AF_LINK,
785 netdev->cache_valid |= VALID_ETHERADDR;
786 netdev->etheraddr = mac;
787 netdev_change_seq_changed(netdev_);
790 ovs_mutex_unlock(&netdev->mutex);
796 * Returns a pointer to 'netdev''s MAC address. The caller must not modify or
797 * free the returned buffer.
800 netdev_bsd_get_etheraddr(const struct netdev *netdev_, struct eth_addr *mac)
802 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
805 ovs_mutex_lock(&netdev->mutex);
806 if (!(netdev->cache_valid & VALID_ETHERADDR)) {
807 error = get_etheraddr(netdev_get_kernel_name(netdev_),
810 netdev->cache_valid |= VALID_ETHERADDR;
814 *mac = netdev->etheraddr;
816 ovs_mutex_unlock(&netdev->mutex);
822 * Returns the maximum size of transmitted (and received) packets on 'netdev',
823 * in bytes, not including the hardware header; thus, this is typically 1500
824 * bytes for Ethernet devices.
827 netdev_bsd_get_mtu(const struct netdev *netdev_, int *mtup)
829 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
832 ovs_mutex_lock(&netdev->mutex);
833 if (!(netdev->cache_valid & VALID_MTU)) {
836 error = af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_), &ifr,
837 SIOCGIFMTU, "SIOCGIFMTU");
839 netdev->mtu = ifr.ifr_mtu;
840 netdev->cache_valid |= VALID_MTU;
846 ovs_mutex_unlock(&netdev->mutex);
852 netdev_bsd_get_ifindex(const struct netdev *netdev_)
854 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
857 ovs_mutex_lock(&netdev->mutex);
858 error = get_ifindex(netdev_, &ifindex);
859 ovs_mutex_unlock(&netdev->mutex);
861 return error ? -error : ifindex;
865 netdev_bsd_get_carrier(const struct netdev *netdev_, bool *carrier)
867 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
870 ovs_mutex_lock(&netdev->mutex);
871 if (!(netdev->cache_valid & VALID_CARRIER)) {
872 struct ifmediareq ifmr;
874 memset(&ifmr, 0, sizeof(ifmr));
875 ovs_strlcpy(ifmr.ifm_name, netdev_get_kernel_name(netdev_),
876 sizeof ifmr.ifm_name);
878 error = af_inet_ioctl(SIOCGIFMEDIA, &ifmr);
880 netdev->carrier = (ifmr.ifm_status & IFM_ACTIVE) == IFM_ACTIVE;
881 netdev->cache_valid |= VALID_CARRIER;
883 /* If the interface doesn't report whether the media is active,
884 * just assume it is active. */
885 if ((ifmr.ifm_status & IFM_AVALID) == 0) {
886 netdev->carrier = true;
889 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
890 netdev_get_name(netdev_), ovs_strerror(error));
894 *carrier = netdev->carrier;
896 ovs_mutex_unlock(&netdev->mutex);
902 convert_stats_system(struct netdev_stats *stats, const struct if_data *ifd)
905 * note: UINT64_MAX means unsupported
907 stats->rx_packets = ifd->ifi_ipackets;
908 stats->tx_packets = ifd->ifi_opackets;
909 stats->rx_bytes = ifd->ifi_obytes;
910 stats->tx_bytes = ifd->ifi_ibytes;
911 stats->rx_errors = ifd->ifi_ierrors;
912 stats->tx_errors = ifd->ifi_oerrors;
913 stats->rx_dropped = ifd->ifi_iqdrops;
914 stats->tx_dropped = UINT64_MAX;
915 stats->multicast = ifd->ifi_imcasts;
916 stats->collisions = ifd->ifi_collisions;
917 stats->rx_length_errors = UINT64_MAX;
918 stats->rx_over_errors = UINT64_MAX;
919 stats->rx_crc_errors = UINT64_MAX;
920 stats->rx_frame_errors = UINT64_MAX;
921 stats->rx_fifo_errors = UINT64_MAX;
922 stats->rx_missed_errors = UINT64_MAX;
923 stats->tx_aborted_errors = UINT64_MAX;
924 stats->tx_carrier_errors = UINT64_MAX;
925 stats->tx_fifo_errors = UINT64_MAX;
926 stats->tx_heartbeat_errors = UINT64_MAX;
927 stats->tx_window_errors = UINT64_MAX;
931 convert_stats_tap(struct netdev_stats *stats, const struct if_data *ifd)
934 * Similar to convert_stats_system but swapping rxq and tx
935 * because 'ifd' is stats for the network interface side of the
936 * tap device and what the caller wants is one for the character
939 * note: UINT64_MAX means unsupported
941 stats->rx_packets = ifd->ifi_opackets;
942 stats->tx_packets = ifd->ifi_ipackets;
943 stats->rx_bytes = ifd->ifi_ibytes;
944 stats->tx_bytes = ifd->ifi_obytes;
945 stats->rx_errors = ifd->ifi_oerrors;
946 stats->tx_errors = ifd->ifi_ierrors;
947 stats->rx_dropped = UINT64_MAX;
948 stats->tx_dropped = ifd->ifi_iqdrops;
949 stats->multicast = ifd->ifi_omcasts;
950 stats->collisions = UINT64_MAX;
951 stats->rx_length_errors = UINT64_MAX;
952 stats->rx_over_errors = UINT64_MAX;
953 stats->rx_crc_errors = UINT64_MAX;
954 stats->rx_frame_errors = UINT64_MAX;
955 stats->rx_fifo_errors = UINT64_MAX;
956 stats->rx_missed_errors = UINT64_MAX;
957 stats->tx_aborted_errors = UINT64_MAX;
958 stats->tx_carrier_errors = UINT64_MAX;
959 stats->tx_fifo_errors = UINT64_MAX;
960 stats->tx_heartbeat_errors = UINT64_MAX;
961 stats->tx_window_errors = UINT64_MAX;
965 convert_stats(const struct netdev *netdev, struct netdev_stats *stats,
966 const struct if_data *ifd)
968 if (netdev_bsd_cast(netdev)->tap_fd == -1) {
969 convert_stats_system(stats, ifd);
971 convert_stats_tap(stats, ifd);
975 /* Retrieves current device stats for 'netdev'. */
977 netdev_bsd_get_stats(const struct netdev *netdev_, struct netdev_stats *stats)
979 #if defined(__FreeBSD__)
983 struct ifmibdata ifmd;
988 mib[2] = NETLINK_GENERIC;
989 mib[3] = IFMIB_SYSTEM;
990 mib[4] = IFMIB_IFCOUNT;
992 len = sizeof(if_count);
994 if (sysctl(mib, 5, &if_count, &len, (void *)0, 0) == -1) {
995 VLOG_DBG_RL(&rl, "%s: sysctl failed: %s",
996 netdev_get_name(netdev_), ovs_strerror(errno));
1000 mib[5] = IFDATA_GENERAL;
1001 mib[3] = IFMIB_IFDATA;
1003 for (i = 1; i <= if_count; i++) {
1005 if (sysctl(mib, 6, &ifmd, &len, (void *)0, 0) == -1) {
1006 VLOG_DBG_RL(&rl, "%s: sysctl failed: %s",
1007 netdev_get_name(netdev_), ovs_strerror(errno));
1009 } else if (!strcmp(ifmd.ifmd_name, netdev_get_name(netdev_))) {
1010 convert_stats(netdev_, stats, &ifmd.ifmd_data);
1016 #elif defined(__NetBSD__)
1017 struct ifdatareq ifdr;
1020 memset(&ifdr, 0, sizeof(ifdr));
1021 ovs_strlcpy(ifdr.ifdr_name, netdev_get_kernel_name(netdev_),
1022 sizeof(ifdr.ifdr_name));
1023 error = af_link_ioctl(SIOCGIFDATA, &ifdr);
1025 convert_stats(netdev_, stats, &ifdr.ifdr_data);
1029 #error not implemented
1034 netdev_bsd_parse_media(int media)
1036 uint32_t supported = 0;
1037 bool half_duplex = media & IFM_HDX ? true : false;
1039 switch (IFM_SUBTYPE(media)) {
1044 supported |= half_duplex ? NETDEV_F_10MB_HD : NETDEV_F_10MB_FD;
1045 supported |= NETDEV_F_COPPER;
1049 supported |= half_duplex ? NETDEV_F_10MB_HD : NETDEV_F_10MB_FD;
1050 supported |= NETDEV_F_FIBER;
1057 supported |= half_duplex ? NETDEV_F_100MB_HD : NETDEV_F_100MB_FD;
1058 supported |= NETDEV_F_COPPER;
1062 supported |= half_duplex ? NETDEV_F_100MB_HD : NETDEV_F_100MB_FD;
1063 supported |= NETDEV_F_FIBER;
1068 supported |= half_duplex ? NETDEV_F_1GB_HD : NETDEV_F_1GB_FD;
1069 supported |= NETDEV_F_COPPER;
1074 supported |= half_duplex ? NETDEV_F_1GB_HD : NETDEV_F_1GB_FD;
1075 supported |= NETDEV_F_FIBER;
1079 supported |= NETDEV_F_10GB_FD;
1080 supported |= NETDEV_F_COPPER;
1085 supported |= NETDEV_F_10GB_FD;
1086 supported |= NETDEV_F_FIBER;
1093 if (IFM_SUBTYPE(media) == IFM_AUTO) {
1094 supported |= NETDEV_F_AUTONEG;
1097 if (media & IFM_ETH_FMASK) {
1098 supported |= NETDEV_F_PAUSE;
1106 * Stores the features supported by 'netdev' into each of '*current',
1107 * '*advertised', '*supported', and '*peer' that are non-null. Each value is a
1108 * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if
1109 * successful, otherwise a positive errno value. On failure, all of the
1110 * passed-in values are set to 0.
1113 netdev_bsd_get_features(const struct netdev *netdev,
1114 enum netdev_features *current, uint32_t *advertised,
1115 enum netdev_features *supported, uint32_t *peer)
1117 struct ifmediareq ifmr;
1123 /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */
1125 memset(&ifmr, 0, sizeof(ifmr));
1126 ovs_strlcpy(ifmr.ifm_name, netdev_get_name(netdev), sizeof ifmr.ifm_name);
1128 /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the
1129 * number of supported modes, and a second with a buffer to retrieve
1131 error = af_inet_ioctl(SIOCGIFMEDIA, &ifmr);
1133 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1134 netdev_get_name(netdev), ovs_strerror(error));
1138 media_list = xcalloc(ifmr.ifm_count, sizeof(int));
1139 ifmr.ifm_ulist = media_list;
1141 if (IFM_TYPE(ifmr.ifm_current) != IFM_ETHER) {
1142 VLOG_DBG_RL(&rl, "%s: doesn't appear to be ethernet",
1143 netdev_get_name(netdev));
1148 error = af_inet_ioctl(SIOCGIFMEDIA, &ifmr);
1150 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1151 netdev_get_name(netdev), ovs_strerror(error));
1155 /* Current settings. */
1156 *current = netdev_bsd_parse_media(ifmr.ifm_active);
1158 /* Advertised features. */
1159 *advertised = netdev_bsd_parse_media(ifmr.ifm_current);
1161 /* Supported features. */
1163 for (i = 0; i < ifmr.ifm_count; i++) {
1164 *supported |= netdev_bsd_parse_media(ifmr.ifm_ulist[i]);
1167 /* Peer advertisements. */
1168 *peer = 0; /* XXX */
1177 * If 'netdev' has an assigned IPv4 address, sets '*in4' to that address and
1178 * '*netmask' to its netmask and returns true. Otherwise, returns false.
1181 netdev_bsd_get_in4(const struct netdev *netdev_, struct in_addr *in4,
1182 struct in_addr *netmask)
1184 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1187 ovs_mutex_lock(&netdev->mutex);
1188 if (!(netdev->cache_valid & VALID_IN4)) {
1191 ifr.ifr_addr.sa_family = AF_INET;
1192 error = af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_), &ifr,
1193 SIOCGIFADDR, "SIOCGIFADDR");
1195 const struct sockaddr_in *sin;
1197 sin = ALIGNED_CAST(struct sockaddr_in *, &ifr.ifr_addr);
1198 netdev->in4 = sin->sin_addr;
1199 netdev->cache_valid |= VALID_IN4;
1200 error = af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_), &ifr,
1201 SIOCGIFNETMASK, "SIOCGIFNETMASK");
1203 *netmask = sin->sin_addr;
1209 *netmask = netdev->netmask;
1211 ovs_mutex_unlock(&netdev->mutex);
1213 return error ? error : in4->s_addr == INADDR_ANY ? EADDRNOTAVAIL : 0;
1217 * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If
1218 * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a
1219 * positive errno value.
1222 netdev_bsd_set_in4(struct netdev *netdev_, struct in_addr addr,
1223 struct in_addr mask)
1225 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1228 ovs_mutex_lock(&netdev->mutex);
1229 error = do_set_addr(netdev_, SIOCSIFADDR, "SIOCSIFADDR", addr);
1231 if (addr.s_addr != INADDR_ANY) {
1232 error = do_set_addr(netdev_, SIOCSIFNETMASK,
1233 "SIOCSIFNETMASK", mask);
1235 netdev->cache_valid |= VALID_IN4;
1237 netdev->netmask = mask;
1240 netdev_change_seq_changed(netdev_);
1242 ovs_mutex_unlock(&netdev->mutex);
1248 netdev_bsd_get_in6(const struct netdev *netdev_, struct in6_addr *in6)
1250 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1251 if (!(netdev->cache_valid & VALID_IN6)) {
1252 struct ifaddrs *ifa, *head;
1253 struct sockaddr_in6 *sin6;
1254 const char *netdev_name = netdev_get_name(netdev_);
1256 if (getifaddrs(&head) != 0) {
1257 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name,
1258 ovs_strerror(errno));
1262 for (ifa = head; ifa; ifa = ifa->ifa_next) {
1263 if (ifa->ifa_addr->sa_family == AF_INET6 &&
1264 !strcmp(ifa->ifa_name, netdev_name)) {
1265 sin6 = ALIGNED_CAST(struct sockaddr_in6 *, ifa->ifa_addr);
1267 memcpy(&netdev->in6, &sin6->sin6_addr, sin6->sin6_len);
1268 netdev->cache_valid |= VALID_IN6;
1275 return EADDRNOTAVAIL;
1281 #if defined(__NetBSD__)
1283 netdev_bsd_kernel_name_to_ovs_name(const char *kernel_name)
1285 char *ovs_name = NULL;
1286 struct shash device_shash;
1287 struct shash_node *node;
1289 shash_init(&device_shash);
1290 netdev_get_devices(&netdev_tap_class, &device_shash);
1291 SHASH_FOR_EACH(node, &device_shash) {
1292 struct netdev *netdev = node->data;
1293 struct netdev_bsd * const dev = netdev_bsd_cast(netdev);
1295 if (!strcmp(dev->kernel_name, kernel_name)) {
1297 ovs_name = xstrdup(netdev_get_name(&dev->up));
1299 netdev_close(netdev);
1301 shash_destroy(&device_shash);
1303 return ovs_name ? ovs_name : xstrdup(kernel_name);
1308 netdev_bsd_get_next_hop(const struct in_addr *host OVS_UNUSED,
1309 struct in_addr *next_hop OVS_UNUSED,
1310 char **netdev_name OVS_UNUSED)
1312 #if defined(__NetBSD__)
1314 struct sockaddr_in sin;
1315 struct sockaddr_dl sdl;
1322 struct rt_msghdr *rtm = &buf.h;
1323 const pid_t pid = getpid();
1326 bool gateway = false;
1327 char *ifname = NULL;
1330 memset(next_hop, 0, sizeof(*next_hop));
1331 *netdev_name = NULL;
1333 memset(&sin, 0, sizeof(sin));
1334 sin.sin_len = sizeof(sin);
1335 sin.sin_family = AF_INET;
1337 sin.sin_addr = *host;
1339 memset(&sdl, 0, sizeof(sdl));
1340 sdl.sdl_len = sizeof(sdl);
1341 sdl.sdl_family = AF_LINK;
1343 s = socket(PF_ROUTE, SOCK_RAW, 0);
1344 memset(&buf, 0, sizeof(buf));
1345 rtm->rtm_flags = RTF_HOST|RTF_UP;
1346 rtm->rtm_version = RTM_VERSION;
1347 rtm->rtm_addrs = RTA_DST|RTA_IFP;
1348 cp = (void *)&buf.space;
1349 memcpy(cp, &sin, sizeof(sin));
1350 RT_ADVANCE(cp, (struct sockaddr *)(void *)&sin);
1351 memcpy(cp, &sdl, sizeof(sdl));
1352 RT_ADVANCE(cp, (struct sockaddr *)(void *)&sdl);
1353 rtm->rtm_msglen = cp - (char *)(void *)rtm;
1354 rtm->rtm_seq = ++seq;
1355 rtm->rtm_type = RTM_GET;
1357 write(s, rtm, rtm->rtm_msglen);
1358 memset(&buf, 0, sizeof(buf));
1360 ssz = read(s, &buf, sizeof(buf));
1361 } while (ssz > 0 && (rtm->rtm_seq != seq || rtm->rtm_pid != pid));
1362 saved_errno = errno;
1368 return EPIPE; /* XXX */
1370 cp = (void *)&buf.space;
1371 for (i = 1; i; i <<= 1) {
1372 if ((rtm->rtm_addrs & i) != 0) {
1373 const struct sockaddr *sa = (const void *)cp;
1375 if ((i == RTA_GATEWAY) && sa->sa_family == AF_INET) {
1376 const struct sockaddr_in * const sin =
1377 ALIGNED_CAST(const struct sockaddr_in *, sa);
1379 *next_hop = sin->sin_addr;
1382 if ((i == RTA_IFP) && sa->sa_family == AF_LINK) {
1383 const struct sockaddr_dl * const sdl =
1384 ALIGNED_CAST(const struct sockaddr_dl *, sa);
1387 kernel_name = xmemdup0(sdl->sdl_data, sdl->sdl_nlen);
1388 ifname = netdev_bsd_kernel_name_to_ovs_name(kernel_name);
1394 if (ifname == NULL) {
1400 *netdev_name = ifname;
1401 VLOG_DBG("host " IP_FMT " next-hop " IP_FMT " if %s",
1402 IP_ARGS(host->s_addr), IP_ARGS(next_hop->s_addr), *netdev_name);
1410 netdev_bsd_arp_lookup(const struct netdev *netdev OVS_UNUSED,
1411 ovs_be32 ip OVS_UNUSED,
1412 struct eth_addr *mac OVS_UNUSED)
1414 #if defined(__NetBSD__)
1415 const struct rt_msghdr *rtm;
1428 mib[4] = NET_RT_FLAGS;
1429 mib[5] = RTF_LLINFO;
1430 if (sysctl(mib, 6, NULL, &needed, NULL, 0) == -1) {
1434 buf = xmalloc(needed);
1435 if (sysctl(mib, 6, buf, &needed, NULL, 0) == -1) {
1440 for (cp = buf; cp < ep; cp += rtm->rtm_msglen) {
1441 const struct sockaddr_inarp *sina;
1442 const struct sockaddr_dl *sdl;
1444 rtm = (const void *)cp;
1445 sina = (const void *)(rtm + 1);
1446 if (ip != sina->sin_addr.s_addr) {
1449 sdl = (const void *)
1450 ((const char *)(const void *)sina + RT_ROUNDUP(sina->sin_len));
1451 if (sdl->sdl_alen == ETH_ADDR_LEN) {
1452 memcpy(mac, &sdl->sdl_data[sdl->sdl_nlen], ETH_ADDR_LEN);
1467 make_in4_sockaddr(struct sockaddr *sa, struct in_addr addr)
1469 struct sockaddr_in sin;
1470 memset(&sin, 0, sizeof sin);
1471 sin.sin_family = AF_INET;
1472 sin.sin_addr = addr;
1475 memset(sa, 0, sizeof *sa);
1476 memcpy(sa, &sin, sizeof sin);
1480 do_set_addr(struct netdev *netdev,
1481 unsigned long ioctl_nr, const char *ioctl_name,
1482 struct in_addr addr)
1485 make_in4_sockaddr(&ifr.ifr_addr, addr);
1486 return af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev), &ifr, ioctl_nr,
1491 nd_to_iff_flags(enum netdev_flags nd)
1494 if (nd & NETDEV_UP) {
1497 if (nd & NETDEV_PROMISC) {
1499 #if defined(IFF_PPROMISC)
1500 iff |= IFF_PPROMISC;
1503 if (nd & NETDEV_LOOPBACK) {
1504 iff |= IFF_LOOPBACK;
1510 iff_to_nd_flags(int iff)
1512 enum netdev_flags nd = 0;
1516 if (iff & IFF_PROMISC) {
1517 nd |= NETDEV_PROMISC;
1519 if (iff & IFF_LOOPBACK) {
1520 nd |= NETDEV_LOOPBACK;
1526 netdev_bsd_update_flags(struct netdev *netdev_, enum netdev_flags off,
1527 enum netdev_flags on, enum netdev_flags *old_flagsp)
1529 int old_flags, new_flags;
1532 error = get_flags(netdev_, &old_flags);
1534 *old_flagsp = iff_to_nd_flags(old_flags);
1535 new_flags = (old_flags & ~nd_to_iff_flags(off)) | nd_to_iff_flags(on);
1536 if (new_flags != old_flags) {
1537 error = set_flags(netdev_get_kernel_name(netdev_), new_flags);
1538 netdev_change_seq_changed(netdev_);
1544 /* Linux has also different GET_STATS, SET_STATS,
1547 #define NETDEV_BSD_CLASS(NAME, CONSTRUCT, \
1551 false, /* is_pmd */ \
1558 netdev_bsd_destruct, \
1559 netdev_bsd_dealloc, \
1560 NULL, /* get_config */ \
1561 NULL, /* set_config */ \
1562 NULL, /* get_tunnel_config */ \
1563 NULL, /* build header */ \
1564 NULL, /* push header */ \
1565 NULL, /* pop header */ \
1566 NULL, /* get_numa_id */ \
1567 NULL, /* set_multiq */ \
1570 netdev_bsd_send_wait, \
1572 netdev_bsd_set_etheraddr, \
1573 netdev_bsd_get_etheraddr, \
1574 netdev_bsd_get_mtu, \
1575 NULL, /* set_mtu */ \
1576 netdev_bsd_get_ifindex, \
1577 netdev_bsd_get_carrier, \
1578 NULL, /* get_carrier_resets */ \
1579 NULL, /* set_miimon_interval */ \
1580 netdev_bsd_get_stats, \
1583 NULL, /* set_advertisement */ \
1584 NULL, /* set_policing */ \
1585 NULL, /* get_qos_type */ \
1586 NULL, /* get_qos_capabilities */ \
1587 NULL, /* get_qos */ \
1588 NULL, /* set_qos */ \
1589 NULL, /* get_queue */ \
1590 NULL, /* set_queue */ \
1591 NULL, /* delete_queue */ \
1592 NULL, /* get_queue_stats */ \
1593 NULL, /* queue_dump_start */ \
1594 NULL, /* queue_dump_next */ \
1595 NULL, /* queue_dump_done */ \
1596 NULL, /* dump_queue_stats */ \
1598 netdev_bsd_get_in4, \
1599 netdev_bsd_set_in4, \
1600 netdev_bsd_get_in6, \
1601 NULL, /* add_router */ \
1602 netdev_bsd_get_next_hop, \
1603 NULL, /* get_status */ \
1604 netdev_bsd_arp_lookup, /* arp_lookup */ \
1606 netdev_bsd_update_flags, \
1608 netdev_bsd_rxq_alloc, \
1609 netdev_bsd_rxq_construct, \
1610 netdev_bsd_rxq_destruct, \
1611 netdev_bsd_rxq_dealloc, \
1612 netdev_bsd_rxq_recv, \
1613 netdev_bsd_rxq_wait, \
1614 netdev_bsd_rxq_drain, \
1617 const struct netdev_class netdev_bsd_class =
1620 netdev_bsd_construct_system,
1621 netdev_bsd_get_features);
1623 const struct netdev_class netdev_tap_class =
1626 netdev_bsd_construct_tap,
1627 netdev_bsd_get_features);
1631 destroy_tap(int fd, const char *name)
1636 strcpy(ifr.ifr_name, name);
1637 /* XXX What to do if this call fails? */
1638 af_inet_ioctl(SIOCIFDESTROY, &ifr);
1642 get_flags(const struct netdev *netdev, int *flags)
1647 error = af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev), &ifr,
1648 SIOCGIFFLAGS, "SIOCGIFFLAGS");
1650 *flags = ifr_get_flags(&ifr);
1656 set_flags(const char *name, int flags)
1660 ifr_set_flags(&ifr, flags);
1662 return af_inet_ifreq_ioctl(name, &ifr, SIOCSIFFLAGS, "SIOCSIFFLAGS");
1666 get_ifindex(const struct netdev *netdev_, int *ifindexp)
1668 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1670 if (!(netdev->cache_valid & VALID_IFINDEX)) {
1671 int ifindex = if_nametoindex(netdev_get_name(netdev_));
1675 netdev->cache_valid |= VALID_IFINDEX;
1676 netdev->ifindex = ifindex;
1678 *ifindexp = netdev->ifindex;
1683 get_etheraddr(const char *netdev_name, struct eth_addr *ea)
1685 struct ifaddrs *head;
1686 struct ifaddrs *ifa;
1687 struct sockaddr_dl *sdl;
1689 if (getifaddrs(&head) != 0) {
1690 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name,
1691 ovs_strerror(errno));
1695 for (ifa = head; ifa; ifa = ifa->ifa_next) {
1696 if (ifa->ifa_addr->sa_family == AF_LINK) {
1697 if (!strcmp(ifa->ifa_name, netdev_name)) {
1698 sdl = ALIGNED_CAST(struct sockaddr_dl *, ifa->ifa_addr);
1700 memcpy(ea, LLADDR(sdl), sdl->sdl_alen);
1708 VLOG_ERR("could not find ethernet address for %s device", netdev_name);
1714 set_etheraddr(const char *netdev_name OVS_UNUSED, int hwaddr_family OVS_UNUSED,
1715 int hwaddr_len OVS_UNUSED,
1716 const struct eth_addr mac OVS_UNUSED)
1718 #if defined(__FreeBSD__)
1722 memset(&ifr, 0, sizeof ifr);
1723 ovs_strlcpy(ifr.ifr_name, netdev_name, sizeof ifr.ifr_name);
1724 ifr.ifr_addr.sa_family = hwaddr_family;
1725 ifr.ifr_addr.sa_len = hwaddr_len;
1726 memcpy(ifr.ifr_addr.sa_data, &mac, hwaddr_len);
1727 error = af_inet_ioctl(SIOCSIFLLADDR, &ifr);
1729 VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s",
1730 netdev_name, ovs_strerror(error));
1734 #elif defined(__NetBSD__)
1735 struct if_laddrreq req;
1736 struct sockaddr_dl *sdl;
1737 struct sockaddr_storage oldaddr;
1741 * get the old address, add new one, and then remove old one.
1744 if (hwaddr_len != ETH_ADDR_LEN) {
1745 /* just to be safe about sockaddr storage size */
1748 memset(&req, 0, sizeof(req));
1749 ovs_strlcpy(req.iflr_name, netdev_name, sizeof(req.iflr_name));
1750 req.addr.ss_len = sizeof(req.addr);
1751 req.addr.ss_family = hwaddr_family;
1752 sdl = (struct sockaddr_dl *)&req.addr;
1753 sdl->sdl_alen = hwaddr_len;
1755 error = af_link_ioctl(SIOCGLIFADDR, &req);
1759 if (!memcmp(&sdl->sdl_data[sdl->sdl_nlen], &mac, hwaddr_len)) {
1764 memset(&req, 0, sizeof(req));
1765 ovs_strlcpy(req.iflr_name, netdev_name, sizeof(req.iflr_name));
1766 req.flags = IFLR_ACTIVE;
1767 sdl = (struct sockaddr_dl *)&req.addr;
1768 sdl->sdl_len = offsetof(struct sockaddr_dl, sdl_data) + hwaddr_len;
1769 sdl->sdl_alen = hwaddr_len;
1770 sdl->sdl_family = hwaddr_family;
1771 memcpy(sdl->sdl_data, &mac, hwaddr_len);
1772 error = af_link_ioctl(SIOCALIFADDR, &req);
1777 memset(&req, 0, sizeof(req));
1778 ovs_strlcpy(req.iflr_name, netdev_name, sizeof(req.iflr_name));
1780 return af_link_ioctl(SIOCDLIFADDR, &req);
1782 #error not implemented
1787 ifr_get_flags(const struct ifreq *ifr)
1789 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1790 return (ifr->ifr_flagshigh << 16) | (ifr->ifr_flags & 0xffff);
1792 return ifr->ifr_flags;
1797 ifr_set_flags(struct ifreq *ifr, int flags)
1799 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1800 ifr->ifr_flags = flags & 0xffff;
1801 ifr->ifr_flagshigh = flags >> 16;
1803 ifr->ifr_flags = flags;
1807 #if defined(__NetBSD__)
1808 /* Calls ioctl() on an AF_LINK sock, passing the specified 'command' and
1809 * 'arg'. Returns 0 if successful, otherwise a positive errno value. */
1811 af_link_ioctl(unsigned long command, const void *arg)
1813 static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
1816 if (ovsthread_once_start(&once)) {
1817 sock = socket(AF_LINK, SOCK_DGRAM, 0);
1820 VLOG_ERR("failed to create link socket: %s", ovs_strerror(errno));
1822 ovsthread_once_done(&once);
1825 return (sock < 0 ? -sock
1826 : ioctl(sock, command, arg) == -1 ? errno
1830 #endif /* !defined(__MACH__) */