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 "openvswitch/poll-loop.h"
60 #include "openvswitch/shash.h"
61 #include "socket-util.h"
64 #include "openvswitch/vlog.h"
66 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
;
96 int tap_fd
; /* TAP character device, if any, otherwise -1. */
98 /* Used for sending packets on non-tap devices. */
105 VALID_IFINDEX
= 1 << 0,
106 VALID_ETHERADDR
= 1 << 1,
109 VALID_CARRIER
= 1 << 4
112 #define PCAP_SNAPLEN 2048
116 * Notifier used to invalidate device informations in case of status change.
118 * It will be registered with a 'rtbsd_notifier_register()' when the first
119 * device will be created with the call of either 'netdev_bsd_tap_create()' or
120 * 'netdev_bsd_system_create()'.
122 * The callback associated with this notifier ('netdev_bsd_cache_cb()') will
123 * invalidate cached information about the device.
125 static struct rtbsd_notifier netdev_bsd_cache_notifier
;
126 static int cache_notifier_refcount
;
128 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(5, 20);
130 static void destroy_tap(int fd
, const char *name
);
131 static int get_flags(const struct netdev
*, int *flagsp
);
132 static int set_flags(const char *, int flags
);
133 static int do_set_addr(struct netdev
*netdev
,
134 unsigned long ioctl_nr
, const char *ioctl_name
,
135 struct in_addr addr
);
136 static int get_etheraddr(const char *netdev_name
, struct eth_addr
*ea
);
137 static int set_etheraddr(const char *netdev_name
, int hwaddr_family
,
138 int hwaddr_len
, const struct eth_addr
);
139 static int get_ifindex(const struct netdev
*, int *ifindexp
);
141 static int ifr_get_flags(const struct ifreq
*);
142 static void ifr_set_flags(struct ifreq
*, int flags
);
145 static int af_link_ioctl(unsigned long command
, const void *arg
);
148 static void netdev_bsd_run(const struct netdev_class
*);
149 static int netdev_bsd_get_mtu(const struct netdev
*netdev_
, int *mtup
);
152 is_netdev_bsd_class(const struct netdev_class
*netdev_class
)
154 return netdev_class
->run
== netdev_bsd_run
;
157 static struct netdev_bsd
*
158 netdev_bsd_cast(const struct netdev
*netdev
)
160 ovs_assert(is_netdev_bsd_class(netdev_get_class(netdev
)));
161 return CONTAINER_OF(netdev
, struct netdev_bsd
, up
);
164 static struct netdev_rxq_bsd
*
165 netdev_rxq_bsd_cast(const struct netdev_rxq
*rxq
)
167 ovs_assert(is_netdev_bsd_class(netdev_get_class(rxq
->netdev
)));
168 return CONTAINER_OF(rxq
, struct netdev_rxq_bsd
, up
);
172 netdev_get_kernel_name(const struct netdev
*netdev
)
174 return netdev_bsd_cast(netdev
)->kernel_name
;
178 * Perform periodic work needed by netdev. In BSD netdevs it checks for any
179 * interface status changes, and eventually calls all the user callbacks.
182 netdev_bsd_run(const struct netdev_class
*netdev_class OVS_UNUSED
)
184 rtbsd_notifier_run();
188 * Arranges for poll_block() to wake up if the "run" member function needs to
192 netdev_bsd_wait(const struct netdev_class
*netdev_class OVS_UNUSED
)
194 rtbsd_notifier_wait();
197 /* Invalidate cache in case of interface status change. */
199 netdev_bsd_cache_cb(const struct rtbsd_change
*change
,
200 void *aux OVS_UNUSED
)
202 struct netdev_bsd
*dev
;
205 struct netdev
*base_dev
= netdev_from_name(change
->if_name
);
208 const struct netdev_class
*netdev_class
=
209 netdev_get_class(base_dev
);
211 if (is_netdev_bsd_class(netdev_class
)) {
212 dev
= netdev_bsd_cast(base_dev
);
213 dev
->cache_valid
= 0;
214 netdev_change_seq_changed(base_dev
);
216 netdev_close(base_dev
);
220 * XXX the API is lacking, we should be able to iterate on the list of
221 * netdevs without having to store the info in a temp shash.
223 struct shash device_shash
;
224 struct shash_node
*node
;
226 shash_init(&device_shash
);
227 netdev_get_devices(&netdev_bsd_class
, &device_shash
);
228 SHASH_FOR_EACH (node
, &device_shash
) {
229 struct netdev
*netdev
= node
->data
;
230 dev
= netdev_bsd_cast(netdev
);
231 dev
->cache_valid
= 0;
232 netdev_change_seq_changed(netdev
);
233 netdev_close(netdev
);
235 shash_destroy(&device_shash
);
240 cache_notifier_ref(void)
244 if (!cache_notifier_refcount
) {
245 ret
= rtbsd_notifier_register(&netdev_bsd_cache_notifier
,
246 netdev_bsd_cache_cb
, NULL
);
251 cache_notifier_refcount
++;
256 cache_notifier_unref(void)
258 cache_notifier_refcount
--;
259 if (cache_notifier_refcount
== 0) {
260 rtbsd_notifier_unregister(&netdev_bsd_cache_notifier
);
265 static struct netdev
*
266 netdev_bsd_alloc(void)
268 struct netdev_bsd
*netdev
= xzalloc(sizeof *netdev
);
273 netdev_bsd_construct_system(struct netdev
*netdev_
)
275 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
276 enum netdev_flags flags
;
279 error
= cache_notifier_ref();
284 ovs_mutex_init(&netdev
->mutex
);
286 netdev
->kernel_name
= xstrdup(netdev_
->name
);
288 /* Verify that the netdev really exists by attempting to read its flags */
289 error
= netdev_get_flags(netdev_
, &flags
);
290 if (error
== ENXIO
) {
291 free(netdev
->kernel_name
);
292 cache_notifier_unref();
293 ovs_mutex_destroy(&netdev
->mutex
);
301 netdev_bsd_construct_tap(struct netdev
*netdev_
)
303 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
304 const char *name
= netdev_
->name
;
307 char *kernel_name
= NULL
;
309 error
= cache_notifier_ref();
314 memset(&ifr
, 0, sizeof(ifr
));
316 /* Create a tap device by opening /dev/tap. The TAPGIFNAME ioctl is used
317 * to retrieve the name of the tap device. */
318 ovs_mutex_init(&netdev
->mutex
);
319 netdev
->tap_fd
= open("/dev/tap", O_RDWR
);
320 if (netdev
->tap_fd
< 0) {
322 VLOG_WARN("opening \"/dev/tap\" failed: %s", ovs_strerror(error
));
323 goto error_unref_notifier
;
326 /* Retrieve tap name (e.g. tap0) */
327 if (ioctl(netdev
->tap_fd
, TAPGIFNAME
, &ifr
) == -1) {
328 /* XXX Need to destroy the device? */
330 close(netdev
->tap_fd
);
331 goto error_unref_notifier
;
334 /* Change the name of the tap device */
335 #if defined(SIOCSIFNAME)
336 ifr
.ifr_data
= (void *)name
;
337 error
= af_inet_ioctl(SIOCSIFNAME
, &ifr
);
339 destroy_tap(netdev
->tap_fd
, ifr
.ifr_name
);
340 goto error_unref_notifier
;
342 kernel_name
= xstrdup(name
);
345 * NetBSD doesn't support inteface renaming.
347 VLOG_INFO("tap %s is created for bridge %s", ifr
.ifr_name
, name
);
348 kernel_name
= xstrdup(ifr
.ifr_name
);
351 /* set non-blocking. */
352 error
= set_nonblocking(netdev
->tap_fd
);
354 destroy_tap(netdev
->tap_fd
, kernel_name
);
355 goto error_unref_notifier
;
359 ifr_set_flags(&ifr
, IFF_UP
);
360 ovs_strlcpy(ifr
.ifr_name
, kernel_name
, sizeof ifr
.ifr_name
);
361 error
= af_inet_ioctl(SIOCSIFFLAGS
, &ifr
);
363 destroy_tap(netdev
->tap_fd
, kernel_name
);
364 goto error_unref_notifier
;
367 netdev
->kernel_name
= kernel_name
;
371 error_unref_notifier
:
372 ovs_mutex_destroy(&netdev
->mutex
);
373 cache_notifier_unref();
380 netdev_bsd_destruct(struct netdev
*netdev_
)
382 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
384 cache_notifier_unref();
386 if (netdev
->tap_fd
>= 0) {
387 destroy_tap(netdev
->tap_fd
, netdev_get_kernel_name(netdev_
));
390 pcap_close(netdev
->pcap
);
392 free(netdev
->kernel_name
);
393 ovs_mutex_destroy(&netdev
->mutex
);
397 netdev_bsd_dealloc(struct netdev
*netdev_
)
399 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
405 netdev_bsd_open_pcap(const char *name
, pcap_t
**pcapp
, int *fdp
)
407 char errbuf
[PCAP_ERRBUF_SIZE
];
413 /* Open the pcap device. The device is opened in non-promiscuous mode
414 * because the interface flags are manually set by the caller. */
416 pcap
= pcap_open_live(name
, PCAP_SNAPLEN
, 0, 1000, errbuf
);
418 VLOG_ERR_RL(&rl
, "%s: pcap_open_live failed: %s", name
, errbuf
);
422 if (errbuf
[0] != '\0') {
423 VLOG_WARN_RL(&rl
, "%s: pcap_open_live: %s", name
, errbuf
);
426 /* Get the underlying fd. */
427 fd
= pcap_get_selectable_fd(pcap
);
429 VLOG_WARN_RL(&rl
, "%s: no selectable file descriptor", name
);
434 /* Set non-blocking mode. Also the BIOCIMMEDIATE ioctl must be called
435 * on the file descriptor returned by pcap_get_selectable_fd to achieve
436 * a real non-blocking behaviour.*/
437 error
= pcap_setnonblock(pcap
, 1, errbuf
);
443 /* This call assure that reads return immediately upon packet
444 * reception. Otherwise, a read will block until either the kernel
445 * buffer becomes full or a timeout occurs. */
446 if (ioctl(fd
, BIOCIMMEDIATE
, &one
) < 0 ) {
447 VLOG_ERR_RL(&rl
, "ioctl(BIOCIMMEDIATE) on %s device failed: %s",
448 name
, ovs_strerror(errno
));
453 /* Capture only incoming packets. */
454 error
= pcap_setdirection(pcap
, PCAP_D_IN
);
473 static struct netdev_rxq
*
474 netdev_bsd_rxq_alloc(void)
476 struct netdev_rxq_bsd
*rxq
= xzalloc(sizeof *rxq
);
481 netdev_bsd_rxq_construct(struct netdev_rxq
*rxq_
)
483 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
484 struct netdev
*netdev_
= rxq
->up
.netdev
;
485 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
488 if (!strcmp(netdev_get_type(netdev_
), "tap")) {
489 rxq
->pcap_handle
= NULL
;
490 rxq
->fd
= netdev
->tap_fd
;
493 ovs_mutex_lock(&netdev
->mutex
);
494 error
= netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_
),
495 &rxq
->pcap_handle
, &rxq
->fd
);
496 ovs_mutex_unlock(&netdev
->mutex
);
503 netdev_bsd_rxq_destruct(struct netdev_rxq
*rxq_
)
505 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
507 if (rxq
->pcap_handle
) {
508 pcap_close(rxq
->pcap_handle
);
513 netdev_bsd_rxq_dealloc(struct netdev_rxq
*rxq_
)
515 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
520 /* The recv callback of the netdev class returns the number of bytes of the
523 * This can be done by the pcap_next() function. Unfortunately pcap_next() does
524 * not make difference between a missing packet on the capture interface and
525 * an error during the file capture. We can use the pcap_dispatch() function
526 * instead, which is able to distinguish between errors and null packet.
528 * To make pcap_dispatch() returns the number of bytes read from the interface
529 * we need to define the following callback and argument.
538 * This callback will be executed on every captured packet.
540 * If the packet captured by pcap_dispatch() does not fit the pcap buffer,
541 * pcap returns a truncated packet and we follow this behavior.
543 * The argument args->retval is the packet size in bytes.
546 proc_pkt(u_char
*args_
, const struct pcap_pkthdr
*hdr
, const u_char
*packet
)
548 struct pcap_arg
*args
= ALIGNED_CAST(struct pcap_arg
*, args_
);
550 if (args
->size
< hdr
->len
) {
551 VLOG_WARN_RL(&rl
, "packet truncated");
552 args
->retval
= args
->size
;
554 args
->retval
= hdr
->len
;
557 /* copy the packet to our buffer */
558 memcpy(args
->data
, packet
, args
->retval
);
562 * This function attempts to receive a packet from the specified network
563 * device. It is assumed that the network device is a system device or a tap
564 * device opened as a system one. In this case the read operation is performed
568 netdev_rxq_bsd_recv_pcap(struct netdev_rxq_bsd
*rxq
, struct dp_packet
*buffer
)
573 /* prepare the pcap argument to store the packet */
574 arg
.size
= dp_packet_tailroom(buffer
);
575 arg
.data
= dp_packet_data(buffer
);
578 ret
= pcap_dispatch(rxq
->pcap_handle
, 1, proc_pkt
, (u_char
*) &arg
);
581 dp_packet_set_size(buffer
, dp_packet_size(buffer
) + arg
.retval
);
585 if (errno
== EINTR
) {
595 * This function attempts to receive a packet from the specified network
596 * device. It is assumed that the network device is a tap device and
597 * 'rxq->fd' is initialized with the tap file descriptor.
600 netdev_rxq_bsd_recv_tap(struct netdev_rxq_bsd
*rxq
, struct dp_packet
*buffer
)
602 size_t size
= dp_packet_tailroom(buffer
);
605 ssize_t retval
= read(rxq
->fd
, dp_packet_data(buffer
), size
);
607 dp_packet_set_size(buffer
, dp_packet_size(buffer
) + retval
);
609 } else if (errno
!= EINTR
) {
610 if (errno
!= EAGAIN
) {
611 VLOG_WARN_RL(&rl
, "error receiving Ethernet packet on %s: %s",
612 ovs_strerror(errno
), netdev_rxq_get_name(&rxq
->up
));
620 netdev_bsd_rxq_recv(struct netdev_rxq
*rxq_
, struct dp_packet_batch
*batch
,
623 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
624 struct netdev
*netdev
= rxq
->up
.netdev
;
625 struct dp_packet
*packet
;
629 if (netdev_bsd_get_mtu(netdev
, &mtu
)) {
630 mtu
= ETH_PAYLOAD_MAX
;
633 /* Assume Ethernet port. No need to set packet_type. */
634 packet
= dp_packet_new_with_headroom(VLAN_ETH_HEADER_LEN
+ mtu
,
636 retval
= (rxq
->pcap_handle
637 ? netdev_rxq_bsd_recv_pcap(rxq
, packet
)
638 : netdev_rxq_bsd_recv_tap(rxq
, packet
));
641 dp_packet_delete(packet
);
643 dp_packet_batch_init_packet(batch
, 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_batch
*batch
,
688 bool concurrent_txq OVS_UNUSED
)
690 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
691 const char *name
= netdev_get_name(netdev_
);
692 struct dp_packet
*packet
;
695 ovs_mutex_lock(&dev
->mutex
);
696 if (dev
->tap_fd
< 0 && !dev
->pcap
) {
697 error
= netdev_bsd_open_pcap(name
, &dev
->pcap
, &dev
->fd
);
702 DP_PACKET_BATCH_FOR_EACH (i
, packet
, batch
) {
703 const void *data
= dp_packet_data(packet
);
704 size_t size
= dp_packet_size(packet
);
708 if (dev
->tap_fd
>= 0) {
709 retval
= write(dev
->tap_fd
, data
, size
);
711 retval
= pcap_inject(dev
->pcap
, data
, size
);
714 if (errno
== EINTR
) {
718 if (error
!= EAGAIN
) {
719 VLOG_WARN_RL(&rl
, "error sending Ethernet packet on"
720 " %s: %s", name
, ovs_strerror(error
));
723 } else if (retval
!= size
) {
724 VLOG_WARN_RL(&rl
, "sent partial Ethernet packet "
725 "(%"PRIuSIZE
" bytes of "
726 "%"PRIuSIZE
") on %s", retval
, size
, name
);
734 ovs_mutex_unlock(&dev
->mutex
);
735 dp_packet_delete_batch(batch
, true);
741 * Registers with the poll loop to wake up from the next call to poll_block()
742 * when the packet transmission queue has sufficient room to transmit a packet
743 * with netdev_send().
746 netdev_bsd_send_wait(struct netdev
*netdev_
, int qid OVS_UNUSED
)
748 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
750 ovs_mutex_lock(&dev
->mutex
);
751 if (dev
->tap_fd
>= 0) {
752 /* TAP device always accepts packets. */
753 poll_immediate_wake();
754 } else if (dev
->pcap
) {
755 poll_fd_wait(dev
->fd
, POLLOUT
);
757 /* We haven't even tried to send a packet yet. */
758 poll_immediate_wake();
760 ovs_mutex_unlock(&dev
->mutex
);
764 * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful,
765 * otherwise a positive errno value.
768 netdev_bsd_set_etheraddr(struct netdev
*netdev_
,
769 const struct eth_addr mac
)
771 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
774 ovs_mutex_lock(&netdev
->mutex
);
775 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)
776 || !eth_addr_equals(netdev
->etheraddr
, mac
)) {
777 error
= set_etheraddr(netdev_get_kernel_name(netdev_
), AF_LINK
,
780 netdev
->cache_valid
|= VALID_ETHERADDR
;
781 netdev
->etheraddr
= mac
;
782 netdev_change_seq_changed(netdev_
);
785 ovs_mutex_unlock(&netdev
->mutex
);
791 * Returns a pointer to 'netdev''s MAC address. The caller must not modify or
792 * free the returned buffer.
795 netdev_bsd_get_etheraddr(const struct netdev
*netdev_
, struct eth_addr
*mac
)
797 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
800 ovs_mutex_lock(&netdev
->mutex
);
801 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)) {
802 error
= get_etheraddr(netdev_get_kernel_name(netdev_
),
805 netdev
->cache_valid
|= VALID_ETHERADDR
;
809 *mac
= netdev
->etheraddr
;
811 ovs_mutex_unlock(&netdev
->mutex
);
817 * Returns the maximum size of transmitted (and received) packets on 'netdev',
818 * in bytes, not including the hardware header; thus, this is typically 1500
819 * bytes for Ethernet devices.
822 netdev_bsd_get_mtu(const struct netdev
*netdev_
, int *mtup
)
824 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
827 ovs_mutex_lock(&netdev
->mutex
);
828 if (!(netdev
->cache_valid
& VALID_MTU
)) {
831 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
832 SIOCGIFMTU
, "SIOCGIFMTU");
834 netdev
->mtu
= ifr
.ifr_mtu
;
835 netdev
->cache_valid
|= VALID_MTU
;
841 ovs_mutex_unlock(&netdev
->mutex
);
847 netdev_bsd_get_ifindex(const struct netdev
*netdev_
)
849 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
852 ovs_mutex_lock(&netdev
->mutex
);
853 error
= get_ifindex(netdev_
, &ifindex
);
854 ovs_mutex_unlock(&netdev
->mutex
);
856 return error
? -error
: ifindex
;
860 netdev_bsd_get_carrier(const struct netdev
*netdev_
, bool *carrier
)
862 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
865 ovs_mutex_lock(&netdev
->mutex
);
866 if (!(netdev
->cache_valid
& VALID_CARRIER
)) {
867 struct ifmediareq ifmr
;
869 memset(&ifmr
, 0, sizeof(ifmr
));
870 ovs_strlcpy(ifmr
.ifm_name
, netdev_get_kernel_name(netdev_
),
871 sizeof ifmr
.ifm_name
);
873 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
875 netdev
->carrier
= (ifmr
.ifm_status
& IFM_ACTIVE
) == IFM_ACTIVE
;
876 netdev
->cache_valid
|= VALID_CARRIER
;
878 /* If the interface doesn't report whether the media is active,
879 * just assume it is active. */
880 if ((ifmr
.ifm_status
& IFM_AVALID
) == 0) {
881 netdev
->carrier
= true;
884 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
885 netdev_get_name(netdev_
), ovs_strerror(error
));
889 *carrier
= netdev
->carrier
;
891 ovs_mutex_unlock(&netdev
->mutex
);
897 convert_stats_system(struct netdev_stats
*stats
, const struct if_data
*ifd
)
900 * note: UINT64_MAX means unsupported
902 stats
->rx_packets
= ifd
->ifi_ipackets
;
903 stats
->tx_packets
= ifd
->ifi_opackets
;
904 stats
->rx_bytes
= ifd
->ifi_obytes
;
905 stats
->tx_bytes
= ifd
->ifi_ibytes
;
906 stats
->rx_errors
= ifd
->ifi_ierrors
;
907 stats
->tx_errors
= ifd
->ifi_oerrors
;
908 stats
->rx_dropped
= ifd
->ifi_iqdrops
;
909 stats
->tx_dropped
= UINT64_MAX
;
910 stats
->multicast
= ifd
->ifi_imcasts
;
911 stats
->collisions
= ifd
->ifi_collisions
;
912 stats
->rx_length_errors
= UINT64_MAX
;
913 stats
->rx_over_errors
= UINT64_MAX
;
914 stats
->rx_crc_errors
= UINT64_MAX
;
915 stats
->rx_frame_errors
= UINT64_MAX
;
916 stats
->rx_fifo_errors
= UINT64_MAX
;
917 stats
->rx_missed_errors
= UINT64_MAX
;
918 stats
->tx_aborted_errors
= UINT64_MAX
;
919 stats
->tx_carrier_errors
= UINT64_MAX
;
920 stats
->tx_fifo_errors
= UINT64_MAX
;
921 stats
->tx_heartbeat_errors
= UINT64_MAX
;
922 stats
->tx_window_errors
= UINT64_MAX
;
926 convert_stats_tap(struct netdev_stats
*stats
, const struct if_data
*ifd
)
929 * Similar to convert_stats_system but swapping rxq and tx
930 * because 'ifd' is stats for the network interface side of the
931 * tap device and what the caller wants is one for the character
934 * note: UINT64_MAX means unsupported
936 stats
->rx_packets
= ifd
->ifi_opackets
;
937 stats
->tx_packets
= ifd
->ifi_ipackets
;
938 stats
->rx_bytes
= ifd
->ifi_ibytes
;
939 stats
->tx_bytes
= ifd
->ifi_obytes
;
940 stats
->rx_errors
= ifd
->ifi_oerrors
;
941 stats
->tx_errors
= ifd
->ifi_ierrors
;
942 stats
->rx_dropped
= UINT64_MAX
;
943 stats
->tx_dropped
= ifd
->ifi_iqdrops
;
944 stats
->multicast
= ifd
->ifi_omcasts
;
945 stats
->collisions
= UINT64_MAX
;
946 stats
->rx_length_errors
= UINT64_MAX
;
947 stats
->rx_over_errors
= UINT64_MAX
;
948 stats
->rx_crc_errors
= UINT64_MAX
;
949 stats
->rx_frame_errors
= UINT64_MAX
;
950 stats
->rx_fifo_errors
= UINT64_MAX
;
951 stats
->rx_missed_errors
= UINT64_MAX
;
952 stats
->tx_aborted_errors
= UINT64_MAX
;
953 stats
->tx_carrier_errors
= UINT64_MAX
;
954 stats
->tx_fifo_errors
= UINT64_MAX
;
955 stats
->tx_heartbeat_errors
= UINT64_MAX
;
956 stats
->tx_window_errors
= UINT64_MAX
;
960 convert_stats(const struct netdev
*netdev
, struct netdev_stats
*stats
,
961 const struct if_data
*ifd
)
963 if (netdev_bsd_cast(netdev
)->tap_fd
== -1) {
964 convert_stats_system(stats
, ifd
);
966 convert_stats_tap(stats
, ifd
);
970 /* Retrieves current device stats for 'netdev'. */
972 netdev_bsd_get_stats(const struct netdev
*netdev_
, struct netdev_stats
*stats
)
974 #if defined(__FreeBSD__)
978 struct ifmibdata ifmd
;
983 mib
[2] = NETLINK_GENERIC
;
984 mib
[3] = IFMIB_SYSTEM
;
985 mib
[4] = IFMIB_IFCOUNT
;
987 len
= sizeof(if_count
);
989 if (sysctl(mib
, 5, &if_count
, &len
, (void *)0, 0) == -1) {
990 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
991 netdev_get_name(netdev_
), ovs_strerror(errno
));
995 mib
[5] = IFDATA_GENERAL
;
996 mib
[3] = IFMIB_IFDATA
;
998 for (i
= 1; i
<= if_count
; i
++) {
999 mib
[4] = i
; /* row */
1000 if (sysctl(mib
, 6, &ifmd
, &len
, (void *)0, 0) == -1) {
1001 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
1002 netdev_get_name(netdev_
), ovs_strerror(errno
));
1004 } else if (!strcmp(ifmd
.ifmd_name
, netdev_get_name(netdev_
))) {
1005 convert_stats(netdev_
, stats
, &ifmd
.ifmd_data
);
1011 #elif defined(__NetBSD__)
1012 struct ifdatareq ifdr
;
1015 memset(&ifdr
, 0, sizeof(ifdr
));
1016 ovs_strlcpy(ifdr
.ifdr_name
, netdev_get_kernel_name(netdev_
),
1017 sizeof(ifdr
.ifdr_name
));
1018 error
= af_link_ioctl(SIOCGIFDATA
, &ifdr
);
1020 convert_stats(netdev_
, stats
, &ifdr
.ifdr_data
);
1024 #error not implemented
1029 netdev_bsd_parse_media(int media
)
1031 uint32_t supported
= 0;
1032 bool half_duplex
= media
& IFM_HDX
? true : false;
1034 switch (IFM_SUBTYPE(media
)) {
1039 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
1040 supported
|= NETDEV_F_COPPER
;
1044 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
1045 supported
|= NETDEV_F_FIBER
;
1052 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
1053 supported
|= NETDEV_F_COPPER
;
1057 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
1058 supported
|= NETDEV_F_FIBER
;
1063 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
1064 supported
|= NETDEV_F_COPPER
;
1069 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
1070 supported
|= NETDEV_F_FIBER
;
1074 supported
|= NETDEV_F_10GB_FD
;
1075 supported
|= NETDEV_F_COPPER
;
1080 supported
|= NETDEV_F_10GB_FD
;
1081 supported
|= NETDEV_F_FIBER
;
1088 if (IFM_SUBTYPE(media
) == IFM_AUTO
) {
1089 supported
|= NETDEV_F_AUTONEG
;
1092 if (media & IFM_ETH_FMASK) {
1093 supported |= NETDEV_F_PAUSE;
1101 * Stores the features supported by 'netdev' into each of '*current',
1102 * '*advertised', '*supported', and '*peer' that are non-null. Each value is a
1103 * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if
1104 * successful, otherwise a positive errno value. On failure, all of the
1105 * passed-in values are set to 0.
1108 netdev_bsd_get_features(const struct netdev
*netdev
,
1109 enum netdev_features
*current
, uint32_t *advertised
,
1110 enum netdev_features
*supported
, uint32_t *peer
)
1112 struct ifmediareq ifmr
;
1118 /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */
1120 memset(&ifmr
, 0, sizeof(ifmr
));
1121 ovs_strlcpy(ifmr
.ifm_name
, netdev_get_name(netdev
), sizeof ifmr
.ifm_name
);
1123 /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the
1124 * number of supported modes, and a second with a buffer to retrieve
1126 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
1128 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1129 netdev_get_name(netdev
), ovs_strerror(error
));
1133 media_list
= xcalloc(ifmr
.ifm_count
, sizeof(int));
1134 ifmr
.ifm_ulist
= media_list
;
1136 if (IFM_TYPE(ifmr
.ifm_current
) != IFM_ETHER
) {
1137 VLOG_DBG_RL(&rl
, "%s: doesn't appear to be ethernet",
1138 netdev_get_name(netdev
));
1143 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
1145 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1146 netdev_get_name(netdev
), ovs_strerror(error
));
1150 /* Current settings. */
1151 *current
= netdev_bsd_parse_media(ifmr
.ifm_active
);
1153 /* Advertised features. */
1154 *advertised
= netdev_bsd_parse_media(ifmr
.ifm_current
);
1156 /* Supported features. */
1158 for (i
= 0; i
< ifmr
.ifm_count
; i
++) {
1159 *supported
|= netdev_bsd_parse_media(ifmr
.ifm_ulist
[i
]);
1162 /* Peer advertisements. */
1163 *peer
= 0; /* XXX */
1172 * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If
1173 * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a
1174 * positive errno value.
1177 netdev_bsd_set_in4(struct netdev
*netdev_
, struct in_addr addr
,
1178 struct in_addr mask
)
1180 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1183 ovs_mutex_lock(&netdev
->mutex
);
1184 error
= do_set_addr(netdev_
, SIOCSIFADDR
, "SIOCSIFADDR", addr
);
1186 if (addr
.s_addr
!= INADDR_ANY
) {
1187 error
= do_set_addr(netdev_
, SIOCSIFNETMASK
,
1188 "SIOCSIFNETMASK", mask
);
1190 netdev_change_seq_changed(netdev_
);
1192 ovs_mutex_unlock(&netdev
->mutex
);
1198 netdev_bsd_get_addr_list(const struct netdev
*netdev_
,
1199 struct in6_addr
**addr
, struct in6_addr
**mask
, int *n_cnt
)
1201 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1204 if (!(netdev
->cache_valid
& VALID_IN
)) {
1205 netdev_get_addrs_list_flush();
1207 error
= netdev_get_addrs(netdev_get_name(netdev_
), addr
, mask
, n_cnt
);
1209 netdev
->cache_valid
|= VALID_IN
;
1214 #if defined(__NetBSD__)
1216 netdev_bsd_kernel_name_to_ovs_name(const char *kernel_name
)
1218 char *ovs_name
= NULL
;
1219 struct shash device_shash
;
1220 struct shash_node
*node
;
1222 shash_init(&device_shash
);
1223 netdev_get_devices(&netdev_tap_class
, &device_shash
);
1224 SHASH_FOR_EACH(node
, &device_shash
) {
1225 struct netdev
*netdev
= node
->data
;
1226 struct netdev_bsd
* const dev
= netdev_bsd_cast(netdev
);
1228 if (!strcmp(dev
->kernel_name
, kernel_name
)) {
1230 ovs_name
= xstrdup(netdev_get_name(&dev
->up
));
1232 netdev_close(netdev
);
1234 shash_destroy(&device_shash
);
1236 return ovs_name
? ovs_name
: xstrdup(kernel_name
);
1241 netdev_bsd_get_next_hop(const struct in_addr
*host OVS_UNUSED
,
1242 struct in_addr
*next_hop OVS_UNUSED
,
1243 char **netdev_name OVS_UNUSED
)
1245 #if defined(__NetBSD__)
1247 struct sockaddr_in sin
;
1248 struct sockaddr_dl sdl
;
1255 struct rt_msghdr
*rtm
= &buf
.h
;
1256 const pid_t pid
= getpid();
1259 bool gateway
= false;
1260 char *ifname
= NULL
;
1263 memset(next_hop
, 0, sizeof(*next_hop
));
1264 *netdev_name
= NULL
;
1266 memset(&sin
, 0, sizeof(sin
));
1267 sin
.sin_len
= sizeof(sin
);
1268 sin
.sin_family
= AF_INET
;
1270 sin
.sin_addr
= *host
;
1272 memset(&sdl
, 0, sizeof(sdl
));
1273 sdl
.sdl_len
= sizeof(sdl
);
1274 sdl
.sdl_family
= AF_LINK
;
1276 s
= socket(PF_ROUTE
, SOCK_RAW
, 0);
1277 memset(&buf
, 0, sizeof(buf
));
1278 rtm
->rtm_flags
= RTF_HOST
|RTF_UP
;
1279 rtm
->rtm_version
= RTM_VERSION
;
1280 rtm
->rtm_addrs
= RTA_DST
|RTA_IFP
;
1281 cp
= (void *)&buf
.space
;
1282 memcpy(cp
, &sin
, sizeof(sin
));
1283 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sin
);
1284 memcpy(cp
, &sdl
, sizeof(sdl
));
1285 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sdl
);
1286 rtm
->rtm_msglen
= cp
- (char *)(void *)rtm
;
1287 rtm
->rtm_seq
= ++seq
;
1288 rtm
->rtm_type
= RTM_GET
;
1290 write(s
, rtm
, rtm
->rtm_msglen
);
1291 memset(&buf
, 0, sizeof(buf
));
1293 ssz
= read(s
, &buf
, sizeof(buf
));
1294 } while (ssz
> 0 && (rtm
->rtm_seq
!= seq
|| rtm
->rtm_pid
!= pid
));
1295 saved_errno
= errno
;
1301 return EPIPE
; /* XXX */
1303 cp
= (void *)&buf
.space
;
1304 for (i
= 1; i
; i
<<= 1) {
1305 if ((rtm
->rtm_addrs
& i
) != 0) {
1306 const struct sockaddr
*sa
= (const void *)cp
;
1308 if ((i
== RTA_GATEWAY
) && sa
->sa_family
== AF_INET
) {
1309 const struct sockaddr_in
* const sin
=
1310 ALIGNED_CAST(const struct sockaddr_in
*, sa
);
1312 *next_hop
= sin
->sin_addr
;
1315 if ((i
== RTA_IFP
) && sa
->sa_family
== AF_LINK
) {
1316 const struct sockaddr_dl
* const sdl
=
1317 ALIGNED_CAST(const struct sockaddr_dl
*, sa
);
1320 kernel_name
= xmemdup0(sdl
->sdl_data
, sdl
->sdl_nlen
);
1321 ifname
= netdev_bsd_kernel_name_to_ovs_name(kernel_name
);
1327 if (ifname
== NULL
) {
1333 *netdev_name
= ifname
;
1334 VLOG_DBG("host " IP_FMT
" next-hop " IP_FMT
" if %s",
1335 IP_ARGS(host
->s_addr
), IP_ARGS(next_hop
->s_addr
), *netdev_name
);
1343 netdev_bsd_arp_lookup(const struct netdev
*netdev OVS_UNUSED
,
1344 ovs_be32 ip OVS_UNUSED
,
1345 struct eth_addr
*mac OVS_UNUSED
)
1347 #if defined(__NetBSD__)
1348 const struct rt_msghdr
*rtm
;
1361 mib
[4] = NET_RT_FLAGS
;
1363 mib
[5] = RTF_LLINFO
;
1367 if (sysctl(mib
, 6, NULL
, &needed
, NULL
, 0) == -1) {
1371 buf
= xmalloc(needed
);
1372 if (sysctl(mib
, 6, buf
, &needed
, NULL
, 0) == -1) {
1377 for (cp
= buf
; cp
< ep
; cp
+= rtm
->rtm_msglen
) {
1378 const struct sockaddr_inarp
*sina
;
1379 const struct sockaddr_dl
*sdl
;
1381 rtm
= (const void *)cp
;
1382 sina
= (const void *)(rtm
+ 1);
1383 if (ip
!= sina
->sin_addr
.s_addr
) {
1386 sdl
= (const void *)
1387 ((const char *)(const void *)sina
+ RT_ROUNDUP(sina
->sin_len
));
1388 if (sdl
->sdl_alen
== ETH_ADDR_LEN
) {
1389 memcpy(mac
, &sdl
->sdl_data
[sdl
->sdl_nlen
], ETH_ADDR_LEN
);
1404 make_in4_sockaddr(struct sockaddr
*sa
, struct in_addr addr
)
1406 struct sockaddr_in sin
;
1407 memset(&sin
, 0, sizeof sin
);
1408 sin
.sin_family
= AF_INET
;
1409 sin
.sin_addr
= addr
;
1412 memset(sa
, 0, sizeof *sa
);
1413 memcpy(sa
, &sin
, sizeof sin
);
1417 do_set_addr(struct netdev
*netdev
,
1418 unsigned long ioctl_nr
, const char *ioctl_name
,
1419 struct in_addr addr
)
1422 make_in4_sockaddr(&ifr
.ifr_addr
, addr
);
1423 return af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev
), &ifr
, ioctl_nr
,
1428 nd_to_iff_flags(enum netdev_flags nd
)
1431 if (nd
& NETDEV_UP
) {
1434 if (nd
& NETDEV_PROMISC
) {
1436 #if defined(IFF_PPROMISC)
1437 iff
|= IFF_PPROMISC
;
1440 if (nd
& NETDEV_LOOPBACK
) {
1441 iff
|= IFF_LOOPBACK
;
1447 iff_to_nd_flags(int iff
)
1449 enum netdev_flags nd
= 0;
1453 if (iff
& IFF_PROMISC
) {
1454 nd
|= NETDEV_PROMISC
;
1456 if (iff
& IFF_LOOPBACK
) {
1457 nd
|= NETDEV_LOOPBACK
;
1463 netdev_bsd_update_flags(struct netdev
*netdev_
, enum netdev_flags off
,
1464 enum netdev_flags on
, enum netdev_flags
*old_flagsp
)
1466 int old_flags
, new_flags
;
1469 error
= get_flags(netdev_
, &old_flags
);
1471 *old_flagsp
= iff_to_nd_flags(old_flags
);
1472 new_flags
= (old_flags
& ~nd_to_iff_flags(off
)) | nd_to_iff_flags(on
);
1473 if (new_flags
!= old_flags
) {
1474 error
= set_flags(netdev_get_kernel_name(netdev_
), new_flags
);
1475 netdev_change_seq_changed(netdev_
);
1481 #define NETDEV_BSD_CLASS_COMMON \
1482 .run = netdev_bsd_run, \
1483 .wait = netdev_bsd_wait, \
1484 .alloc = netdev_bsd_alloc, \
1485 .destruct = netdev_bsd_destruct, \
1486 .dealloc = netdev_bsd_dealloc, \
1487 .send = netdev_bsd_send, \
1488 .send_wait = netdev_bsd_send_wait, \
1489 .set_etheraddr = netdev_bsd_set_etheraddr, \
1490 .get_etheraddr = netdev_bsd_get_etheraddr, \
1491 .get_mtu = netdev_bsd_get_mtu, \
1492 .get_ifindex = netdev_bsd_get_ifindex, \
1493 .get_carrier = netdev_bsd_get_carrier, \
1494 .get_stats = netdev_bsd_get_stats, \
1495 .get_features = netdev_bsd_get_features, \
1496 .set_in4 = netdev_bsd_set_in4, \
1497 .get_addr_list = netdev_bsd_get_addr_list, \
1498 .get_next_hop = netdev_bsd_get_next_hop, \
1499 .arp_lookup = netdev_bsd_arp_lookup, \
1500 .update_flags = netdev_bsd_update_flags, \
1501 .rxq_alloc = netdev_bsd_rxq_alloc, \
1502 .rxq_construct = netdev_bsd_rxq_construct, \
1503 .rxq_destruct = netdev_bsd_rxq_destruct, \
1504 .rxq_dealloc = netdev_bsd_rxq_dealloc, \
1505 .rxq_recv = netdev_bsd_rxq_recv, \
1506 .rxq_wait = netdev_bsd_rxq_wait, \
1507 .rxq_drain = netdev_bsd_rxq_drain
1509 const struct netdev_class netdev_bsd_class
= {
1510 NETDEV_BSD_CLASS_COMMON
,
1512 .construct
= netdev_bsd_construct_system
,
1515 const struct netdev_class netdev_tap_class
= {
1516 NETDEV_BSD_CLASS_COMMON
,
1518 .construct
= netdev_bsd_construct_tap
,
1523 destroy_tap(int fd
, const char *name
)
1528 strcpy(ifr
.ifr_name
, name
);
1529 /* XXX What to do if this call fails? */
1530 af_inet_ioctl(SIOCIFDESTROY
, &ifr
);
1534 get_flags(const struct netdev
*netdev
, int *flags
)
1539 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev
), &ifr
,
1540 SIOCGIFFLAGS
, "SIOCGIFFLAGS");
1542 *flags
= ifr_get_flags(&ifr
);
1548 set_flags(const char *name
, int flags
)
1552 ifr_set_flags(&ifr
, flags
);
1554 return af_inet_ifreq_ioctl(name
, &ifr
, SIOCSIFFLAGS
, "SIOCSIFFLAGS");
1558 get_ifindex(const struct netdev
*netdev_
, int *ifindexp
)
1560 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1562 if (!(netdev
->cache_valid
& VALID_IFINDEX
)) {
1563 int ifindex
= if_nametoindex(netdev_get_name(netdev_
));
1567 netdev
->cache_valid
|= VALID_IFINDEX
;
1568 netdev
->ifindex
= ifindex
;
1570 *ifindexp
= netdev
->ifindex
;
1575 get_etheraddr(const char *netdev_name
, struct eth_addr
*ea
)
1577 struct ifaddrs
*head
;
1578 struct ifaddrs
*ifa
;
1579 struct sockaddr_dl
*sdl
;
1581 if (getifaddrs(&head
) != 0) {
1582 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1583 ovs_strerror(errno
));
1587 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1588 if (ifa
->ifa_addr
->sa_family
== AF_LINK
) {
1589 if (!strcmp(ifa
->ifa_name
, netdev_name
)) {
1590 sdl
= ALIGNED_CAST(struct sockaddr_dl
*, ifa
->ifa_addr
);
1592 memcpy(ea
, LLADDR(sdl
), sdl
->sdl_alen
);
1600 VLOG_ERR("could not find ethernet address for %s device", netdev_name
);
1606 set_etheraddr(const char *netdev_name OVS_UNUSED
, int hwaddr_family OVS_UNUSED
,
1607 int hwaddr_len OVS_UNUSED
,
1608 const struct eth_addr mac OVS_UNUSED
)
1610 #if defined(__FreeBSD__)
1614 memset(&ifr
, 0, sizeof ifr
);
1615 ovs_strlcpy(ifr
.ifr_name
, netdev_name
, sizeof ifr
.ifr_name
);
1616 ifr
.ifr_addr
.sa_family
= hwaddr_family
;
1617 ifr
.ifr_addr
.sa_len
= hwaddr_len
;
1618 memcpy(ifr
.ifr_addr
.sa_data
, &mac
, hwaddr_len
);
1619 error
= af_inet_ioctl(SIOCSIFLLADDR
, &ifr
);
1621 VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s",
1622 netdev_name
, ovs_strerror(error
));
1626 #elif defined(__NetBSD__)
1627 struct if_laddrreq req
;
1628 struct sockaddr_dl
*sdl
;
1629 struct sockaddr_storage oldaddr
;
1633 * get the old address, add new one, and then remove old one.
1636 if (hwaddr_len
!= ETH_ADDR_LEN
) {
1637 /* just to be safe about sockaddr storage size */
1640 memset(&req
, 0, sizeof(req
));
1641 ovs_strlcpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1642 req
.addr
.ss_len
= sizeof(req
.addr
);
1643 req
.addr
.ss_family
= hwaddr_family
;
1644 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1645 sdl
->sdl_alen
= hwaddr_len
;
1647 error
= af_link_ioctl(SIOCGLIFADDR
, &req
);
1651 if (!memcmp(&sdl
->sdl_data
[sdl
->sdl_nlen
], &mac
, hwaddr_len
)) {
1656 memset(&req
, 0, sizeof(req
));
1657 ovs_strlcpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1658 req
.flags
= IFLR_ACTIVE
;
1659 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1660 sdl
->sdl_len
= offsetof(struct sockaddr_dl
, sdl_data
) + hwaddr_len
;
1661 sdl
->sdl_alen
= hwaddr_len
;
1662 sdl
->sdl_family
= hwaddr_family
;
1663 memcpy(sdl
->sdl_data
, &mac
, hwaddr_len
);
1664 error
= af_link_ioctl(SIOCALIFADDR
, &req
);
1669 memset(&req
, 0, sizeof(req
));
1670 ovs_strlcpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1672 return af_link_ioctl(SIOCDLIFADDR
, &req
);
1674 #error not implemented
1679 ifr_get_flags(const struct ifreq
*ifr
)
1681 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1682 return (ifr
->ifr_flagshigh
<< 16) | (ifr
->ifr_flags
& 0xffff);
1684 return ifr
->ifr_flags
;
1689 ifr_set_flags(struct ifreq
*ifr
, int flags
)
1691 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1692 ifr
->ifr_flags
= flags
& 0xffff;
1693 ifr
->ifr_flagshigh
= flags
>> 16;
1695 ifr
->ifr_flags
= flags
;
1699 #if defined(__NetBSD__)
1700 /* Calls ioctl() on an AF_LINK sock, passing the specified 'command' and
1701 * 'arg'. Returns 0 if successful, otherwise a positive errno value. */
1703 af_link_ioctl(unsigned long command
, const void *arg
)
1705 static struct ovsthread_once once
= OVSTHREAD_ONCE_INITIALIZER
;
1708 if (ovsthread_once_start(&once
)) {
1709 sock
= socket(AF_LINK
, SOCK_DGRAM
, 0);
1712 VLOG_ERR("failed to create link socket: %s", ovs_strerror(errno
));
1714 ovsthread_once_done(&once
);
1717 return (sock
< 0 ? -sock
1718 : ioctl(sock
, command
, arg
) == -1 ? errno
1722 #endif /* !defined(__MACH__) */