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.
20 #include "netdev-provider.h"
24 #include <sys/types.h>
26 #include <sys/ioctl.h>
27 #include <sys/socket.h>
28 #include <sys/sockio.h>
31 #include <pcap/pcap.h>
33 #include <net/if_dl.h>
34 #include <net/if_media.h>
35 #include <net/if_tap.h>
36 #include <netinet/in.h>
37 #ifdef HAVE_NET_IF_MIB_H
38 #include <net/if_mib.h>
43 #include <sys/sysctl.h>
44 #if defined(__NetBSD__)
45 #include <net/route.h>
46 #include <netinet/if_inarp.h>
51 #include "dp-packet.h"
52 #include "dpif-netdev.h"
53 #include "dynamic-string.h"
54 #include "fatal-signal.h"
55 #include "openflow/openflow.h"
56 #include "ovs-thread.h"
58 #include "poll-loop.h"
60 #include "socket-util.h"
63 #include "openvswitch/vlog.h"
65 VLOG_DEFINE_THIS_MODULE(netdev_bsd);
68 struct netdev_rxq_bsd {
71 /* Packet capture descriptor for a system network device.
72 * For a tap device this is NULL. */
75 /* Selectable file descriptor for the network device.
76 * This descriptor will be used for polling operations. */
83 /* Never changes after initialization. */
86 /* Protects all members below. */
87 struct ovs_mutex mutex;
89 unsigned int cache_valid;
92 struct eth_addr etheraddr;
94 struct in_addr netmask;
99 int tap_fd; /* TAP character device, if any, otherwise -1. */
101 /* Used for sending packets on non-tap devices. */
108 VALID_IFINDEX = 1 << 0,
109 VALID_ETHERADDR = 1 << 1,
113 VALID_CARRIER = 1 << 5
116 #define PCAP_SNAPLEN 2048
120 * Notifier used to invalidate device informations in case of status change.
122 * It will be registered with a 'rtbsd_notifier_register()' when the first
123 * device will be created with the call of either 'netdev_bsd_tap_create()' or
124 * 'netdev_bsd_system_create()'.
126 * The callback associated with this notifier ('netdev_bsd_cache_cb()') will
127 * invalidate cached information about the device.
129 static struct rtbsd_notifier netdev_bsd_cache_notifier;
130 static int cache_notifier_refcount;
132 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
134 static void destroy_tap(int fd, const char *name);
135 static int get_flags(const struct netdev *, int *flagsp);
136 static int set_flags(const char *, int flags);
137 static int do_set_addr(struct netdev *netdev,
138 unsigned long ioctl_nr, const char *ioctl_name,
139 struct in_addr addr);
140 static int get_etheraddr(const char *netdev_name, struct eth_addr *ea);
141 static int set_etheraddr(const char *netdev_name, int hwaddr_family,
142 int hwaddr_len, const struct eth_addr);
143 static int get_ifindex(const struct netdev *, int *ifindexp);
145 static int ifr_get_flags(const struct ifreq *);
146 static void ifr_set_flags(struct ifreq *, int flags);
149 static int af_link_ioctl(unsigned long command, const void *arg);
152 static void netdev_bsd_run(void);
153 static int netdev_bsd_get_mtu(const struct netdev *netdev_, int *mtup);
156 is_netdev_bsd_class(const struct netdev_class *netdev_class)
158 return netdev_class->run == netdev_bsd_run;
161 static struct netdev_bsd *
162 netdev_bsd_cast(const struct netdev *netdev)
164 ovs_assert(is_netdev_bsd_class(netdev_get_class(netdev)));
165 return CONTAINER_OF(netdev, struct netdev_bsd, up);
168 static struct netdev_rxq_bsd *
169 netdev_rxq_bsd_cast(const struct netdev_rxq *rxq)
171 ovs_assert(is_netdev_bsd_class(netdev_get_class(rxq->netdev)));
172 return CONTAINER_OF(rxq, struct netdev_rxq_bsd, up);
176 netdev_get_kernel_name(const struct netdev *netdev)
178 return netdev_bsd_cast(netdev)->kernel_name;
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.
188 rtbsd_notifier_run();
192 * Arranges for poll_block() to wake up if the "run" member function needs to
196 netdev_bsd_wait(void)
198 rtbsd_notifier_wait();
201 /* Invalidate cache in case of interface status change. */
203 netdev_bsd_cache_cb(const struct rtbsd_change *change,
204 void *aux OVS_UNUSED)
206 struct netdev_bsd *dev;
209 struct netdev *base_dev = netdev_from_name(change->if_name);
212 const struct netdev_class *netdev_class =
213 netdev_get_class(base_dev);
215 if (is_netdev_bsd_class(netdev_class)) {
216 dev = netdev_bsd_cast(base_dev);
217 dev->cache_valid = 0;
218 netdev_change_seq_changed(base_dev);
220 netdev_close(base_dev);
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.
227 struct shash device_shash;
228 struct shash_node *node;
230 shash_init(&device_shash);
231 netdev_get_devices(&netdev_bsd_class, &device_shash);
232 SHASH_FOR_EACH (node, &device_shash) {
233 struct netdev *netdev = node->data;
234 dev = netdev_bsd_cast(netdev);
235 dev->cache_valid = 0;
236 netdev_change_seq_changed(netdev);
237 netdev_close(netdev);
239 shash_destroy(&device_shash);
244 cache_notifier_ref(void)
248 if (!cache_notifier_refcount) {
249 ret = rtbsd_notifier_register(&netdev_bsd_cache_notifier,
250 netdev_bsd_cache_cb, NULL);
255 cache_notifier_refcount++;
260 cache_notifier_unref(void)
262 cache_notifier_refcount--;
263 if (cache_notifier_refcount == 0) {
264 rtbsd_notifier_unregister(&netdev_bsd_cache_notifier);
269 static struct netdev *
270 netdev_bsd_alloc(void)
272 struct netdev_bsd *netdev = xzalloc(sizeof *netdev);
277 netdev_bsd_construct_system(struct netdev *netdev_)
279 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
280 enum netdev_flags flags;
283 error = cache_notifier_ref();
288 ovs_mutex_init(&netdev->mutex);
290 netdev->kernel_name = xstrdup(netdev_->name);
292 /* Verify that the netdev really exists by attempting to read its flags */
293 error = netdev_get_flags(netdev_, &flags);
294 if (error == ENXIO) {
295 free(netdev->kernel_name);
296 cache_notifier_unref();
304 netdev_bsd_construct_tap(struct netdev *netdev_)
306 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
307 const char *name = netdev_->name;
310 char *kernel_name = NULL;
312 error = cache_notifier_ref();
317 memset(&ifr, 0, sizeof(ifr));
319 /* Create a tap device by opening /dev/tap. The TAPGIFNAME ioctl is used
320 * to retrieve the name of the tap device. */
321 ovs_mutex_init(&netdev->mutex);
322 netdev->tap_fd = open("/dev/tap", O_RDWR);
323 if (netdev->tap_fd < 0) {
325 VLOG_WARN("opening \"/dev/tap\" failed: %s", ovs_strerror(error));
326 goto error_unref_notifier;
329 /* Retrieve tap name (e.g. tap0) */
330 if (ioctl(netdev->tap_fd, TAPGIFNAME, &ifr) == -1) {
331 /* XXX Need to destroy the device? */
333 close(netdev->tap_fd);
334 goto error_unref_notifier;
337 /* Change the name of the tap device */
338 #if defined(SIOCSIFNAME)
339 ifr.ifr_data = (void *)name;
340 error = af_inet_ioctl(SIOCSIFNAME, &ifr);
342 destroy_tap(netdev->tap_fd, ifr.ifr_name);
343 goto error_unref_notifier;
345 kernel_name = xstrdup(name);
348 * NetBSD doesn't support inteface renaming.
350 VLOG_INFO("tap %s is created for bridge %s", ifr.ifr_name, name);
351 kernel_name = xstrdup(ifr.ifr_name);
354 /* set non-blocking. */
355 error = set_nonblocking(netdev->tap_fd);
357 destroy_tap(netdev->tap_fd, kernel_name);
358 goto error_unref_notifier;
362 ifr_set_flags(&ifr, IFF_UP);
363 ovs_strlcpy(ifr.ifr_name, kernel_name, sizeof ifr.ifr_name);
364 error = af_inet_ioctl(SIOCSIFFLAGS, &ifr);
366 destroy_tap(netdev->tap_fd, kernel_name);
367 goto error_unref_notifier;
370 netdev->kernel_name = kernel_name;
374 error_unref_notifier:
375 ovs_mutex_destroy(&netdev->mutex);
376 cache_notifier_unref();
383 netdev_bsd_destruct(struct netdev *netdev_)
385 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
387 cache_notifier_unref();
389 if (netdev->tap_fd >= 0) {
390 destroy_tap(netdev->tap_fd, netdev_get_kernel_name(netdev_));
393 pcap_close(netdev->pcap);
395 free(netdev->kernel_name);
396 ovs_mutex_destroy(&netdev->mutex);
400 netdev_bsd_dealloc(struct netdev *netdev_)
402 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
408 netdev_bsd_open_pcap(const char *name, pcap_t **pcapp, int *fdp)
410 char errbuf[PCAP_ERRBUF_SIZE];
416 /* Open the pcap device. The device is opened in non-promiscuous mode
417 * because the interface flags are manually set by the caller. */
419 pcap = pcap_open_live(name, PCAP_SNAPLEN, 0, 1000, errbuf);
421 VLOG_ERR_RL(&rl, "%s: pcap_open_live failed: %s", name, errbuf);
425 if (errbuf[0] != '\0') {
426 VLOG_WARN_RL(&rl, "%s: pcap_open_live: %s", name, errbuf);
429 /* Get the underlying fd. */
430 fd = pcap_get_selectable_fd(pcap);
432 VLOG_WARN_RL(&rl, "%s: no selectable file descriptor", name);
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.*/
440 error = pcap_setnonblock(pcap, 1, errbuf);
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",
451 name, ovs_strerror(errno));
456 /* Capture only incoming packets. */
457 error = pcap_setdirection(pcap, PCAP_D_IN);
476 static struct netdev_rxq *
477 netdev_bsd_rxq_alloc(void)
479 struct netdev_rxq_bsd *rxq = xzalloc(sizeof *rxq);
484 netdev_bsd_rxq_construct(struct netdev_rxq *rxq_)
486 struct netdev_rxq_bsd *rxq = netdev_rxq_bsd_cast(rxq_);
487 struct netdev *netdev_ = rxq->up.netdev;
488 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
491 if (!strcmp(netdev_get_type(netdev_), "tap")) {
492 rxq->pcap_handle = NULL;
493 rxq->fd = netdev->tap_fd;
496 ovs_mutex_lock(&netdev->mutex);
497 error = netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_),
498 &rxq->pcap_handle, &rxq->fd);
499 ovs_mutex_unlock(&netdev->mutex);
506 netdev_bsd_rxq_destruct(struct netdev_rxq *rxq_)
508 struct netdev_rxq_bsd *rxq = netdev_rxq_bsd_cast(rxq_);
510 if (rxq->pcap_handle) {
511 pcap_close(rxq->pcap_handle);
516 netdev_bsd_rxq_dealloc(struct netdev_rxq *rxq_)
518 struct netdev_rxq_bsd *rxq = netdev_rxq_bsd_cast(rxq_);
523 /* The recv callback of the netdev class returns the number of bytes of the
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.
531 * To make pcap_dispatch() returns the number of bytes read from the interface
532 * we need to define the following callback and argument.
541 * This callback will be executed on every captured packet.
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.
546 * The argument args->retval is the packet size in bytes.
549 proc_pkt(u_char *args_, const struct pcap_pkthdr *hdr, const u_char *packet)
551 struct pcap_arg *args = ALIGNED_CAST(struct pcap_arg *, args_);
553 if (args->size < hdr->len) {
554 VLOG_WARN_RL(&rl, "packet truncated");
555 args->retval = args->size;
557 args->retval = hdr->len;
560 /* copy the packet to our buffer */
561 memcpy(args->data, packet, args->retval);
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
571 netdev_rxq_bsd_recv_pcap(struct netdev_rxq_bsd *rxq, struct dp_packet *buffer)
576 /* prepare the pcap argument to store the packet */
577 arg.size = dp_packet_tailroom(buffer);
578 arg.data = dp_packet_data(buffer);
581 ret = pcap_dispatch(rxq->pcap_handle, 1, proc_pkt, (u_char *) &arg);
584 dp_packet_set_size(buffer, dp_packet_size(buffer) + arg.retval);
588 if (errno == EINTR) {
598 * This function attempts to receive a packet from the specified network
599 * device. It is assumed that the network device is a tap device and
600 * 'rxq->fd' is initialized with the tap file descriptor.
603 netdev_rxq_bsd_recv_tap(struct netdev_rxq_bsd *rxq, struct dp_packet *buffer)
605 size_t size = dp_packet_tailroom(buffer);
608 ssize_t retval = read(rxq->fd, dp_packet_data(buffer), size);
610 dp_packet_set_size(buffer, dp_packet_size(buffer) + retval);
612 } else if (errno != EINTR) {
613 if (errno != EAGAIN) {
614 VLOG_WARN_RL(&rl, "error receiving Ethernet packet on %s: %s",
615 ovs_strerror(errno), netdev_rxq_get_name(&rxq->up));
623 netdev_bsd_rxq_recv(struct netdev_rxq *rxq_, struct dp_packet **packets,
626 struct netdev_rxq_bsd *rxq = netdev_rxq_bsd_cast(rxq_);
627 struct netdev *netdev = rxq->up.netdev;
628 struct dp_packet *packet;
632 if (netdev_bsd_get_mtu(netdev, &mtu)) {
633 mtu = ETH_PAYLOAD_MAX;
636 packet = dp_packet_new_with_headroom(VLAN_ETH_HEADER_LEN + mtu,
638 retval = (rxq->pcap_handle
639 ? netdev_rxq_bsd_recv_pcap(rxq, packet)
640 : netdev_rxq_bsd_recv_tap(rxq, packet));
643 dp_packet_delete(packet);
645 dp_packet_pad(packet);
646 dp_packet_rss_invalidate(packet);
654 * Registers with the poll loop to wake up from the next call to poll_block()
655 * when a packet is ready to be received with netdev_rxq_recv() on 'rxq'.
658 netdev_bsd_rxq_wait(struct netdev_rxq *rxq_)
660 struct netdev_rxq_bsd *rxq = netdev_rxq_bsd_cast(rxq_);
662 poll_fd_wait(rxq->fd, POLLIN);
665 /* Discards all packets waiting to be received from 'rxq'. */
667 netdev_bsd_rxq_drain(struct netdev_rxq *rxq_)
670 struct netdev_rxq_bsd *rxq = netdev_rxq_bsd_cast(rxq_);
672 strcpy(ifr.ifr_name, netdev_get_kernel_name(netdev_rxq_get_netdev(rxq_)));
673 if (ioctl(rxq->fd, BIOCFLUSH, &ifr) == -1) {
674 VLOG_DBG_RL(&rl, "%s: ioctl(BIOCFLUSH) failed: %s",
675 netdev_rxq_get_name(rxq_), ovs_strerror(errno));
682 * Send a packet on the specified network device. The device could be either a
683 * system or a tap device.
686 netdev_bsd_send(struct netdev *netdev_, int qid OVS_UNUSED,
687 struct dp_packet **pkts, int cnt, bool may_steal)
689 struct netdev_bsd *dev = netdev_bsd_cast(netdev_);
690 const char *name = netdev_get_name(netdev_);
694 ovs_mutex_lock(&dev->mutex);
695 if (dev->tap_fd < 0 && !dev->pcap) {
696 error = netdev_bsd_open_pcap(name, &dev->pcap, &dev->fd);
701 for (i = 0; i < cnt; i++) {
702 const void *data = dp_packet_data(pkts[i]);
703 size_t size = dp_packet_size(pkts[i]);
707 if (dev->tap_fd >= 0) {
708 retval = write(dev->tap_fd, data, size);
710 retval = pcap_inject(dev->pcap, data, size);
713 if (errno == EINTR) {
717 if (error != EAGAIN) {
718 VLOG_WARN_RL(&rl, "error sending Ethernet packet on"
719 " %s: %s", name, ovs_strerror(error));
722 } else if (retval != size) {
723 VLOG_WARN_RL(&rl, "sent partial Ethernet packet "
724 "(%"PRIuSIZE" bytes of "
725 "%"PRIuSIZE") on %s", retval, size, name);
733 ovs_mutex_unlock(&dev->mutex);
735 for (i = 0; i < cnt; i++) {
736 dp_packet_delete(pkts[i]);
744 * Registers with the poll loop to wake up from the next call to poll_block()
745 * when the packet transmission queue has sufficient room to transmit a packet
746 * with netdev_send().
749 netdev_bsd_send_wait(struct netdev *netdev_, int qid OVS_UNUSED)
751 struct netdev_bsd *dev = netdev_bsd_cast(netdev_);
753 ovs_mutex_lock(&dev->mutex);
754 if (dev->tap_fd >= 0) {
755 /* TAP device always accepts packets. */
756 poll_immediate_wake();
757 } else if (dev->pcap) {
758 poll_fd_wait(dev->fd, POLLOUT);
760 /* We haven't even tried to send a packet yet. */
761 poll_immediate_wake();
763 ovs_mutex_unlock(&dev->mutex);
767 * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful,
768 * otherwise a positive errno value.
771 netdev_bsd_set_etheraddr(struct netdev *netdev_,
772 const struct eth_addr mac)
774 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
777 ovs_mutex_lock(&netdev->mutex);
778 if (!(netdev->cache_valid & VALID_ETHERADDR)
779 || !eth_addr_equals(netdev->etheraddr, mac)) {
780 error = set_etheraddr(netdev_get_kernel_name(netdev_), AF_LINK,
783 netdev->cache_valid |= VALID_ETHERADDR;
784 netdev->etheraddr = mac;
785 netdev_change_seq_changed(netdev_);
788 ovs_mutex_unlock(&netdev->mutex);
794 * Returns a pointer to 'netdev''s MAC address. The caller must not modify or
795 * free the returned buffer.
798 netdev_bsd_get_etheraddr(const struct netdev *netdev_, struct eth_addr *mac)
800 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
803 ovs_mutex_lock(&netdev->mutex);
804 if (!(netdev->cache_valid & VALID_ETHERADDR)) {
805 error = get_etheraddr(netdev_get_kernel_name(netdev_),
808 netdev->cache_valid |= VALID_ETHERADDR;
812 *mac = netdev->etheraddr;
814 ovs_mutex_unlock(&netdev->mutex);
820 * Returns the maximum size of transmitted (and received) packets on 'netdev',
821 * in bytes, not including the hardware header; thus, this is typically 1500
822 * bytes for Ethernet devices.
825 netdev_bsd_get_mtu(const struct netdev *netdev_, int *mtup)
827 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
830 ovs_mutex_lock(&netdev->mutex);
831 if (!(netdev->cache_valid & VALID_MTU)) {
834 error = af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_), &ifr,
835 SIOCGIFMTU, "SIOCGIFMTU");
837 netdev->mtu = ifr.ifr_mtu;
838 netdev->cache_valid |= VALID_MTU;
844 ovs_mutex_unlock(&netdev->mutex);
850 netdev_bsd_get_ifindex(const struct netdev *netdev_)
852 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
855 ovs_mutex_lock(&netdev->mutex);
856 error = get_ifindex(netdev_, &ifindex);
857 ovs_mutex_unlock(&netdev->mutex);
859 return error ? -error : ifindex;
863 netdev_bsd_get_carrier(const struct netdev *netdev_, bool *carrier)
865 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
868 ovs_mutex_lock(&netdev->mutex);
869 if (!(netdev->cache_valid & VALID_CARRIER)) {
870 struct ifmediareq ifmr;
872 memset(&ifmr, 0, sizeof(ifmr));
873 ovs_strlcpy(ifmr.ifm_name, netdev_get_kernel_name(netdev_),
874 sizeof ifmr.ifm_name);
876 error = af_inet_ioctl(SIOCGIFMEDIA, &ifmr);
878 netdev->carrier = (ifmr.ifm_status & IFM_ACTIVE) == IFM_ACTIVE;
879 netdev->cache_valid |= VALID_CARRIER;
881 /* If the interface doesn't report whether the media is active,
882 * just assume it is active. */
883 if ((ifmr.ifm_status & IFM_AVALID) == 0) {
884 netdev->carrier = true;
887 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
888 netdev_get_name(netdev_), ovs_strerror(error));
892 *carrier = netdev->carrier;
894 ovs_mutex_unlock(&netdev->mutex);
900 convert_stats_system(struct netdev_stats *stats, const struct if_data *ifd)
903 * note: UINT64_MAX means unsupported
905 stats->rx_packets = ifd->ifi_ipackets;
906 stats->tx_packets = ifd->ifi_opackets;
907 stats->rx_bytes = ifd->ifi_obytes;
908 stats->tx_bytes = ifd->ifi_ibytes;
909 stats->rx_errors = ifd->ifi_ierrors;
910 stats->tx_errors = ifd->ifi_oerrors;
911 stats->rx_dropped = ifd->ifi_iqdrops;
912 stats->tx_dropped = UINT64_MAX;
913 stats->multicast = ifd->ifi_imcasts;
914 stats->collisions = ifd->ifi_collisions;
915 stats->rx_length_errors = UINT64_MAX;
916 stats->rx_over_errors = UINT64_MAX;
917 stats->rx_crc_errors = UINT64_MAX;
918 stats->rx_frame_errors = UINT64_MAX;
919 stats->rx_fifo_errors = UINT64_MAX;
920 stats->rx_missed_errors = UINT64_MAX;
921 stats->tx_aborted_errors = UINT64_MAX;
922 stats->tx_carrier_errors = UINT64_MAX;
923 stats->tx_fifo_errors = UINT64_MAX;
924 stats->tx_heartbeat_errors = UINT64_MAX;
925 stats->tx_window_errors = UINT64_MAX;
929 convert_stats_tap(struct netdev_stats *stats, const struct if_data *ifd)
932 * Similar to convert_stats_system but swapping rxq and tx
933 * because 'ifd' is stats for the network interface side of the
934 * tap device and what the caller wants is one for the character
937 * note: UINT64_MAX means unsupported
939 stats->rx_packets = ifd->ifi_opackets;
940 stats->tx_packets = ifd->ifi_ipackets;
941 stats->rx_bytes = ifd->ifi_ibytes;
942 stats->tx_bytes = ifd->ifi_obytes;
943 stats->rx_errors = ifd->ifi_oerrors;
944 stats->tx_errors = ifd->ifi_ierrors;
945 stats->rx_dropped = UINT64_MAX;
946 stats->tx_dropped = ifd->ifi_iqdrops;
947 stats->multicast = ifd->ifi_omcasts;
948 stats->collisions = UINT64_MAX;
949 stats->rx_length_errors = UINT64_MAX;
950 stats->rx_over_errors = UINT64_MAX;
951 stats->rx_crc_errors = UINT64_MAX;
952 stats->rx_frame_errors = UINT64_MAX;
953 stats->rx_fifo_errors = UINT64_MAX;
954 stats->rx_missed_errors = UINT64_MAX;
955 stats->tx_aborted_errors = UINT64_MAX;
956 stats->tx_carrier_errors = UINT64_MAX;
957 stats->tx_fifo_errors = UINT64_MAX;
958 stats->tx_heartbeat_errors = UINT64_MAX;
959 stats->tx_window_errors = UINT64_MAX;
963 convert_stats(const struct netdev *netdev, struct netdev_stats *stats,
964 const struct if_data *ifd)
966 if (netdev_bsd_cast(netdev)->tap_fd == -1) {
967 convert_stats_system(stats, ifd);
969 convert_stats_tap(stats, ifd);
973 /* Retrieves current device stats for 'netdev'. */
975 netdev_bsd_get_stats(const struct netdev *netdev_, struct netdev_stats *stats)
977 #if defined(__FreeBSD__)
981 struct ifmibdata ifmd;
986 mib[2] = NETLINK_GENERIC;
987 mib[3] = IFMIB_SYSTEM;
988 mib[4] = IFMIB_IFCOUNT;
990 len = sizeof(if_count);
992 if (sysctl(mib, 5, &if_count, &len, (void *)0, 0) == -1) {
993 VLOG_DBG_RL(&rl, "%s: sysctl failed: %s",
994 netdev_get_name(netdev_), ovs_strerror(errno));
998 mib[5] = IFDATA_GENERAL;
999 mib[3] = IFMIB_IFDATA;
1001 for (i = 1; i <= if_count; i++) {
1003 if (sysctl(mib, 6, &ifmd, &len, (void *)0, 0) == -1) {
1004 VLOG_DBG_RL(&rl, "%s: sysctl failed: %s",
1005 netdev_get_name(netdev_), ovs_strerror(errno));
1007 } else if (!strcmp(ifmd.ifmd_name, netdev_get_name(netdev_))) {
1008 convert_stats(netdev_, stats, &ifmd.ifmd_data);
1014 #elif defined(__NetBSD__)
1015 struct ifdatareq ifdr;
1018 memset(&ifdr, 0, sizeof(ifdr));
1019 ovs_strlcpy(ifdr.ifdr_name, netdev_get_kernel_name(netdev_),
1020 sizeof(ifdr.ifdr_name));
1021 error = af_link_ioctl(SIOCGIFDATA, &ifdr);
1023 convert_stats(netdev_, stats, &ifdr.ifdr_data);
1027 #error not implemented
1032 netdev_bsd_parse_media(int media)
1034 uint32_t supported = 0;
1035 bool half_duplex = media & IFM_HDX ? true : false;
1037 switch (IFM_SUBTYPE(media)) {
1042 supported |= half_duplex ? NETDEV_F_10MB_HD : NETDEV_F_10MB_FD;
1043 supported |= NETDEV_F_COPPER;
1047 supported |= half_duplex ? NETDEV_F_10MB_HD : NETDEV_F_10MB_FD;
1048 supported |= NETDEV_F_FIBER;
1055 supported |= half_duplex ? NETDEV_F_100MB_HD : NETDEV_F_100MB_FD;
1056 supported |= NETDEV_F_COPPER;
1060 supported |= half_duplex ? NETDEV_F_100MB_HD : NETDEV_F_100MB_FD;
1061 supported |= NETDEV_F_FIBER;
1066 supported |= half_duplex ? NETDEV_F_1GB_HD : NETDEV_F_1GB_FD;
1067 supported |= NETDEV_F_COPPER;
1072 supported |= half_duplex ? NETDEV_F_1GB_HD : NETDEV_F_1GB_FD;
1073 supported |= NETDEV_F_FIBER;
1077 supported |= NETDEV_F_10GB_FD;
1078 supported |= NETDEV_F_COPPER;
1083 supported |= NETDEV_F_10GB_FD;
1084 supported |= NETDEV_F_FIBER;
1091 if (IFM_SUBTYPE(media) == IFM_AUTO) {
1092 supported |= NETDEV_F_AUTONEG;
1095 if (media & IFM_ETH_FMASK) {
1096 supported |= NETDEV_F_PAUSE;
1104 * Stores the features supported by 'netdev' into each of '*current',
1105 * '*advertised', '*supported', and '*peer' that are non-null. Each value is a
1106 * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if
1107 * successful, otherwise a positive errno value. On failure, all of the
1108 * passed-in values are set to 0.
1111 netdev_bsd_get_features(const struct netdev *netdev,
1112 enum netdev_features *current, uint32_t *advertised,
1113 enum netdev_features *supported, uint32_t *peer)
1115 struct ifmediareq ifmr;
1121 /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */
1123 memset(&ifmr, 0, sizeof(ifmr));
1124 ovs_strlcpy(ifmr.ifm_name, netdev_get_name(netdev), sizeof ifmr.ifm_name);
1126 /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the
1127 * number of supported modes, and a second with a buffer to retrieve
1129 error = af_inet_ioctl(SIOCGIFMEDIA, &ifmr);
1131 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1132 netdev_get_name(netdev), ovs_strerror(error));
1136 media_list = xcalloc(ifmr.ifm_count, sizeof(int));
1137 ifmr.ifm_ulist = media_list;
1139 if (IFM_TYPE(ifmr.ifm_current) != IFM_ETHER) {
1140 VLOG_DBG_RL(&rl, "%s: doesn't appear to be ethernet",
1141 netdev_get_name(netdev));
1146 error = af_inet_ioctl(SIOCGIFMEDIA, &ifmr);
1148 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1149 netdev_get_name(netdev), ovs_strerror(error));
1153 /* Current settings. */
1154 *current = netdev_bsd_parse_media(ifmr.ifm_active);
1156 /* Advertised features. */
1157 *advertised = netdev_bsd_parse_media(ifmr.ifm_current);
1159 /* Supported features. */
1161 for (i = 0; i < ifmr.ifm_count; i++) {
1162 *supported |= netdev_bsd_parse_media(ifmr.ifm_ulist[i]);
1165 /* Peer advertisements. */
1166 *peer = 0; /* XXX */
1175 * If 'netdev' has an assigned IPv4 address, sets '*in4' to that address and
1176 * '*netmask' to its netmask and returns true. Otherwise, returns false.
1179 netdev_bsd_get_in4(const struct netdev *netdev_, struct in_addr *in4,
1180 struct in_addr *netmask)
1182 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1185 ovs_mutex_lock(&netdev->mutex);
1186 if (!(netdev->cache_valid & VALID_IN4)) {
1189 ifr.ifr_addr.sa_family = AF_INET;
1190 error = af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_), &ifr,
1191 SIOCGIFADDR, "SIOCGIFADDR");
1193 const struct sockaddr_in *sin;
1195 sin = ALIGNED_CAST(struct sockaddr_in *, &ifr.ifr_addr);
1196 netdev->in4 = sin->sin_addr;
1197 netdev->cache_valid |= VALID_IN4;
1198 error = af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_), &ifr,
1199 SIOCGIFNETMASK, "SIOCGIFNETMASK");
1201 *netmask = sin->sin_addr;
1207 *netmask = netdev->netmask;
1209 ovs_mutex_unlock(&netdev->mutex);
1211 return error ? error : in4->s_addr == INADDR_ANY ? EADDRNOTAVAIL : 0;
1215 * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If
1216 * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a
1217 * positive errno value.
1220 netdev_bsd_set_in4(struct netdev *netdev_, struct in_addr addr,
1221 struct in_addr mask)
1223 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1226 ovs_mutex_lock(&netdev->mutex);
1227 error = do_set_addr(netdev_, SIOCSIFADDR, "SIOCSIFADDR", addr);
1229 if (addr.s_addr != INADDR_ANY) {
1230 error = do_set_addr(netdev_, SIOCSIFNETMASK,
1231 "SIOCSIFNETMASK", mask);
1233 netdev->cache_valid |= VALID_IN4;
1235 netdev->netmask = mask;
1238 netdev_change_seq_changed(netdev_);
1240 ovs_mutex_unlock(&netdev->mutex);
1246 netdev_bsd_get_in6(const struct netdev *netdev_, struct in6_addr *in6)
1248 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1249 if (!(netdev->cache_valid & VALID_IN6)) {
1250 struct ifaddrs *ifa, *head;
1251 struct sockaddr_in6 *sin6;
1252 const char *netdev_name = netdev_get_name(netdev_);
1254 if (getifaddrs(&head) != 0) {
1255 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name,
1256 ovs_strerror(errno));
1260 for (ifa = head; ifa; ifa = ifa->ifa_next) {
1261 if (ifa->ifa_addr->sa_family == AF_INET6 &&
1262 !strcmp(ifa->ifa_name, netdev_name)) {
1263 sin6 = ALIGNED_CAST(struct sockaddr_in6 *, ifa->ifa_addr);
1265 memcpy(&netdev->in6, &sin6->sin6_addr, sin6->sin6_len);
1266 netdev->cache_valid |= VALID_IN6;
1273 return EADDRNOTAVAIL;
1279 #if defined(__NetBSD__)
1281 netdev_bsd_kernel_name_to_ovs_name(const char *kernel_name)
1283 char *ovs_name = NULL;
1284 struct shash device_shash;
1285 struct shash_node *node;
1287 shash_init(&device_shash);
1288 netdev_get_devices(&netdev_tap_class, &device_shash);
1289 SHASH_FOR_EACH(node, &device_shash) {
1290 struct netdev *netdev = node->data;
1291 struct netdev_bsd * const dev = netdev_bsd_cast(netdev);
1293 if (!strcmp(dev->kernel_name, kernel_name)) {
1295 ovs_name = xstrdup(netdev_get_name(&dev->up));
1297 netdev_close(netdev);
1299 shash_destroy(&device_shash);
1301 return ovs_name ? ovs_name : xstrdup(kernel_name);
1306 netdev_bsd_get_next_hop(const struct in_addr *host OVS_UNUSED,
1307 struct in_addr *next_hop OVS_UNUSED,
1308 char **netdev_name OVS_UNUSED)
1310 #if defined(__NetBSD__)
1312 struct sockaddr_in sin;
1313 struct sockaddr_dl sdl;
1320 struct rt_msghdr *rtm = &buf.h;
1321 const pid_t pid = getpid();
1324 bool gateway = false;
1325 char *ifname = NULL;
1328 memset(next_hop, 0, sizeof(*next_hop));
1329 *netdev_name = NULL;
1331 memset(&sin, 0, sizeof(sin));
1332 sin.sin_len = sizeof(sin);
1333 sin.sin_family = AF_INET;
1335 sin.sin_addr = *host;
1337 memset(&sdl, 0, sizeof(sdl));
1338 sdl.sdl_len = sizeof(sdl);
1339 sdl.sdl_family = AF_LINK;
1341 s = socket(PF_ROUTE, SOCK_RAW, 0);
1342 memset(&buf, 0, sizeof(buf));
1343 rtm->rtm_flags = RTF_HOST|RTF_UP;
1344 rtm->rtm_version = RTM_VERSION;
1345 rtm->rtm_addrs = RTA_DST|RTA_IFP;
1346 cp = (void *)&buf.space;
1347 memcpy(cp, &sin, sizeof(sin));
1348 RT_ADVANCE(cp, (struct sockaddr *)(void *)&sin);
1349 memcpy(cp, &sdl, sizeof(sdl));
1350 RT_ADVANCE(cp, (struct sockaddr *)(void *)&sdl);
1351 rtm->rtm_msglen = cp - (char *)(void *)rtm;
1352 rtm->rtm_seq = ++seq;
1353 rtm->rtm_type = RTM_GET;
1355 write(s, rtm, rtm->rtm_msglen);
1356 memset(&buf, 0, sizeof(buf));
1358 ssz = read(s, &buf, sizeof(buf));
1359 } while (ssz > 0 && (rtm->rtm_seq != seq || rtm->rtm_pid != pid));
1360 saved_errno = errno;
1366 return EPIPE; /* XXX */
1368 cp = (void *)&buf.space;
1369 for (i = 1; i; i <<= 1) {
1370 if ((rtm->rtm_addrs & i) != 0) {
1371 const struct sockaddr *sa = (const void *)cp;
1373 if ((i == RTA_GATEWAY) && sa->sa_family == AF_INET) {
1374 const struct sockaddr_in * const sin =
1375 ALIGNED_CAST(const struct sockaddr_in *, sa);
1377 *next_hop = sin->sin_addr;
1380 if ((i == RTA_IFP) && sa->sa_family == AF_LINK) {
1381 const struct sockaddr_dl * const sdl =
1382 ALIGNED_CAST(const struct sockaddr_dl *, sa);
1385 kernel_name = xmemdup0(sdl->sdl_data, sdl->sdl_nlen);
1386 ifname = netdev_bsd_kernel_name_to_ovs_name(kernel_name);
1392 if (ifname == NULL) {
1398 *netdev_name = ifname;
1399 VLOG_DBG("host " IP_FMT " next-hop " IP_FMT " if %s",
1400 IP_ARGS(host->s_addr), IP_ARGS(next_hop->s_addr), *netdev_name);
1408 netdev_bsd_arp_lookup(const struct netdev *netdev OVS_UNUSED,
1409 ovs_be32 ip OVS_UNUSED,
1410 struct eth_addr *mac OVS_UNUSED)
1412 #if defined(__NetBSD__)
1413 const struct rt_msghdr *rtm;
1426 mib[4] = NET_RT_FLAGS;
1427 mib[5] = RTF_LLINFO;
1428 if (sysctl(mib, 6, NULL, &needed, NULL, 0) == -1) {
1432 buf = xmalloc(needed);
1433 if (sysctl(mib, 6, buf, &needed, NULL, 0) == -1) {
1438 for (cp = buf; cp < ep; cp += rtm->rtm_msglen) {
1439 const struct sockaddr_inarp *sina;
1440 const struct sockaddr_dl *sdl;
1442 rtm = (const void *)cp;
1443 sina = (const void *)(rtm + 1);
1444 if (ip != sina->sin_addr.s_addr) {
1447 sdl = (const void *)
1448 ((const char *)(const void *)sina + RT_ROUNDUP(sina->sin_len));
1449 if (sdl->sdl_alen == ETH_ADDR_LEN) {
1450 memcpy(mac, &sdl->sdl_data[sdl->sdl_nlen], ETH_ADDR_LEN);
1465 make_in4_sockaddr(struct sockaddr *sa, struct in_addr addr)
1467 struct sockaddr_in sin;
1468 memset(&sin, 0, sizeof sin);
1469 sin.sin_family = AF_INET;
1470 sin.sin_addr = addr;
1473 memset(sa, 0, sizeof *sa);
1474 memcpy(sa, &sin, sizeof sin);
1478 do_set_addr(struct netdev *netdev,
1479 unsigned long ioctl_nr, const char *ioctl_name,
1480 struct in_addr addr)
1483 make_in4_sockaddr(&ifr.ifr_addr, addr);
1484 return af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev), &ifr, ioctl_nr,
1489 nd_to_iff_flags(enum netdev_flags nd)
1492 if (nd & NETDEV_UP) {
1495 if (nd & NETDEV_PROMISC) {
1497 #if defined(IFF_PPROMISC)
1498 iff |= IFF_PPROMISC;
1501 if (nd & NETDEV_LOOPBACK) {
1502 iff |= IFF_LOOPBACK;
1508 iff_to_nd_flags(int iff)
1510 enum netdev_flags nd = 0;
1514 if (iff & IFF_PROMISC) {
1515 nd |= NETDEV_PROMISC;
1517 if (iff & IFF_LOOPBACK) {
1518 nd |= NETDEV_LOOPBACK;
1524 netdev_bsd_update_flags(struct netdev *netdev_, enum netdev_flags off,
1525 enum netdev_flags on, enum netdev_flags *old_flagsp)
1527 int old_flags, new_flags;
1530 error = get_flags(netdev_, &old_flags);
1532 *old_flagsp = iff_to_nd_flags(old_flags);
1533 new_flags = (old_flags & ~nd_to_iff_flags(off)) | nd_to_iff_flags(on);
1534 if (new_flags != old_flags) {
1535 error = set_flags(netdev_get_kernel_name(netdev_), new_flags);
1536 netdev_change_seq_changed(netdev_);
1542 /* Linux has also different GET_STATS, SET_STATS,
1545 #define NETDEV_BSD_CLASS(NAME, CONSTRUCT, \
1555 netdev_bsd_destruct, \
1556 netdev_bsd_dealloc, \
1557 NULL, /* get_config */ \
1558 NULL, /* set_config */ \
1559 NULL, /* get_tunnel_config */ \
1560 NULL, /* build header */ \
1561 NULL, /* push header */ \
1562 NULL, /* pop header */ \
1563 NULL, /* get_numa_id */ \
1564 NULL, /* set_multiq */ \
1567 netdev_bsd_send_wait, \
1569 netdev_bsd_set_etheraddr, \
1570 netdev_bsd_get_etheraddr, \
1571 netdev_bsd_get_mtu, \
1572 NULL, /* set_mtu */ \
1573 netdev_bsd_get_ifindex, \
1574 netdev_bsd_get_carrier, \
1575 NULL, /* get_carrier_resets */ \
1576 NULL, /* set_miimon_interval */ \
1577 netdev_bsd_get_stats, \
1580 NULL, /* set_advertisement */ \
1581 NULL, /* set_policing */ \
1582 NULL, /* get_qos_type */ \
1583 NULL, /* get_qos_capabilities */ \
1584 NULL, /* get_qos */ \
1585 NULL, /* set_qos */ \
1586 NULL, /* get_queue */ \
1587 NULL, /* set_queue */ \
1588 NULL, /* delete_queue */ \
1589 NULL, /* get_queue_stats */ \
1590 NULL, /* queue_dump_start */ \
1591 NULL, /* queue_dump_next */ \
1592 NULL, /* queue_dump_done */ \
1593 NULL, /* dump_queue_stats */ \
1595 netdev_bsd_get_in4, \
1596 netdev_bsd_set_in4, \
1597 netdev_bsd_get_in6, \
1598 NULL, /* add_router */ \
1599 netdev_bsd_get_next_hop, \
1600 NULL, /* get_status */ \
1601 netdev_bsd_arp_lookup, /* arp_lookup */ \
1603 netdev_bsd_update_flags, \
1605 netdev_bsd_rxq_alloc, \
1606 netdev_bsd_rxq_construct, \
1607 netdev_bsd_rxq_destruct, \
1608 netdev_bsd_rxq_dealloc, \
1609 netdev_bsd_rxq_recv, \
1610 netdev_bsd_rxq_wait, \
1611 netdev_bsd_rxq_drain, \
1614 const struct netdev_class netdev_bsd_class =
1617 netdev_bsd_construct_system,
1618 netdev_bsd_get_features);
1620 const struct netdev_class netdev_tap_class =
1623 netdev_bsd_construct_tap,
1624 netdev_bsd_get_features);
1628 destroy_tap(int fd, const char *name)
1633 strcpy(ifr.ifr_name, name);
1634 /* XXX What to do if this call fails? */
1635 af_inet_ioctl(SIOCIFDESTROY, &ifr);
1639 get_flags(const struct netdev *netdev, int *flags)
1644 error = af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev), &ifr,
1645 SIOCGIFFLAGS, "SIOCGIFFLAGS");
1647 *flags = ifr_get_flags(&ifr);
1653 set_flags(const char *name, int flags)
1657 ifr_set_flags(&ifr, flags);
1659 return af_inet_ifreq_ioctl(name, &ifr, SIOCSIFFLAGS, "SIOCSIFFLAGS");
1663 get_ifindex(const struct netdev *netdev_, int *ifindexp)
1665 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1667 if (!(netdev->cache_valid & VALID_IFINDEX)) {
1668 int ifindex = if_nametoindex(netdev_get_name(netdev_));
1672 netdev->cache_valid |= VALID_IFINDEX;
1673 netdev->ifindex = ifindex;
1675 *ifindexp = netdev->ifindex;
1680 get_etheraddr(const char *netdev_name, struct eth_addr *ea)
1682 struct ifaddrs *head;
1683 struct ifaddrs *ifa;
1684 struct sockaddr_dl *sdl;
1686 if (getifaddrs(&head) != 0) {
1687 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name,
1688 ovs_strerror(errno));
1692 for (ifa = head; ifa; ifa = ifa->ifa_next) {
1693 if (ifa->ifa_addr->sa_family == AF_LINK) {
1694 if (!strcmp(ifa->ifa_name, netdev_name)) {
1695 sdl = ALIGNED_CAST(struct sockaddr_dl *, ifa->ifa_addr);
1697 memcpy(ea, LLADDR(sdl), sdl->sdl_alen);
1705 VLOG_ERR("could not find ethernet address for %s device", netdev_name);
1711 set_etheraddr(const char *netdev_name OVS_UNUSED, int hwaddr_family OVS_UNUSED,
1712 int hwaddr_len OVS_UNUSED,
1713 const struct eth_addr mac OVS_UNUSED)
1715 #if defined(__FreeBSD__)
1719 memset(&ifr, 0, sizeof ifr);
1720 ovs_strlcpy(ifr.ifr_name, netdev_name, sizeof ifr.ifr_name);
1721 ifr.ifr_addr.sa_family = hwaddr_family;
1722 ifr.ifr_addr.sa_len = hwaddr_len;
1723 memcpy(ifr.ifr_addr.sa_data, &mac, hwaddr_len);
1724 error = af_inet_ioctl(SIOCSIFLLADDR, &ifr);
1726 VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s",
1727 netdev_name, ovs_strerror(error));
1731 #elif defined(__NetBSD__)
1732 struct if_laddrreq req;
1733 struct sockaddr_dl *sdl;
1734 struct sockaddr_storage oldaddr;
1738 * get the old address, add new one, and then remove old one.
1741 if (hwaddr_len != ETH_ADDR_LEN) {
1742 /* just to be safe about sockaddr storage size */
1745 memset(&req, 0, sizeof(req));
1746 ovs_strlcpy(req.iflr_name, netdev_name, sizeof(req.iflr_name));
1747 req.addr.ss_len = sizeof(req.addr);
1748 req.addr.ss_family = hwaddr_family;
1749 sdl = (struct sockaddr_dl *)&req.addr;
1750 sdl->sdl_alen = hwaddr_len;
1752 error = af_link_ioctl(SIOCGLIFADDR, &req);
1756 if (!memcmp(&sdl->sdl_data[sdl->sdl_nlen], &mac, hwaddr_len)) {
1761 memset(&req, 0, sizeof(req));
1762 ovs_strlcpy(req.iflr_name, netdev_name, sizeof(req.iflr_name));
1763 req.flags = IFLR_ACTIVE;
1764 sdl = (struct sockaddr_dl *)&req.addr;
1765 sdl->sdl_len = offsetof(struct sockaddr_dl, sdl_data) + hwaddr_len;
1766 sdl->sdl_alen = hwaddr_len;
1767 sdl->sdl_family = hwaddr_family;
1768 memcpy(sdl->sdl_data, &mac, hwaddr_len);
1769 error = af_link_ioctl(SIOCALIFADDR, &req);
1774 memset(&req, 0, sizeof(req));
1775 ovs_strlcpy(req.iflr_name, netdev_name, sizeof(req.iflr_name));
1777 return af_link_ioctl(SIOCDLIFADDR, &req);
1779 #error not implemented
1784 ifr_get_flags(const struct ifreq *ifr)
1786 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1787 return (ifr->ifr_flagshigh << 16) | (ifr->ifr_flags & 0xffff);
1789 return ifr->ifr_flags;
1794 ifr_set_flags(struct ifreq *ifr, int flags)
1796 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1797 ifr->ifr_flags = flags & 0xffff;
1798 ifr->ifr_flagshigh = flags >> 16;
1800 ifr->ifr_flags = flags;
1804 #if defined(__NetBSD__)
1805 /* Calls ioctl() on an AF_LINK sock, passing the specified 'command' and
1806 * 'arg'. Returns 0 if successful, otherwise a positive errno value. */
1808 af_link_ioctl(unsigned long command, const void *arg)
1810 static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
1813 if (ovsthread_once_start(&once)) {
1814 sock = socket(AF_LINK, SOCK_DGRAM, 0);
1817 VLOG_ERR("failed to create link socket: %s", ovs_strerror(errno));
1819 ovsthread_once_done(&once);
1822 return (sock < 0 ? -sock
1823 : ioctl(sock, command, arg) == -1 ? errno