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>
30 #include <pcap/pcap.h>
32 #include <net/if_dl.h>
33 #include <net/if_media.h>
34 #include <net/if_tap.h>
35 #include <netinet/in.h>
36 #ifdef HAVE_NET_IF_MIB_H
37 #include <net/if_mib.h>
42 #include <sys/sysctl.h>
43 #if defined(__NetBSD__)
44 #include <net/route.h>
45 #include <netinet/in.h>
46 #include <netinet/if_inarp.h>
51 #include "dpif-netdev.h"
52 #include "dynamic-string.h"
53 #include "fatal-signal.h"
55 #include "openflow/openflow.h"
56 #include "ovs-thread.h"
57 #include "packet-dpif.h"
59 #include "poll-loop.h"
61 #include "socket-util.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 uint8_t etheraddr
[ETH_ADDR_LEN
];
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
, uint8_t ea
[ETH_ADDR_LEN
]);
142 static int set_etheraddr(const char *netdev_name
, int hwaddr_family
,
143 int hwaddr_len
, const uint8_t[ETH_ADDR_LEN
]);
144 static int get_ifindex(const struct netdev
*, int *ifindexp
);
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();
305 netdev_bsd_construct_tap(struct netdev
*netdev_
)
307 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
308 const char *name
= netdev_
->name
;
311 char *kernel_name
= NULL
;
313 error
= cache_notifier_ref();
318 memset(&ifr
, 0, sizeof(ifr
));
320 /* Create a tap device by opening /dev/tap. The TAPGIFNAME ioctl is used
321 * to retrieve the name of the tap device. */
322 ovs_mutex_init(&netdev
->mutex
);
323 netdev
->tap_fd
= open("/dev/tap", O_RDWR
);
324 if (netdev
->tap_fd
< 0) {
326 VLOG_WARN("opening \"/dev/tap\" failed: %s", ovs_strerror(error
));
327 goto error_unref_notifier
;
330 /* Retrieve tap name (e.g. tap0) */
331 if (ioctl(netdev
->tap_fd
, TAPGIFNAME
, &ifr
) == -1) {
332 /* XXX Need to destroy the device? */
334 close(netdev
->tap_fd
);
335 goto error_unref_notifier
;
338 /* Change the name of the tap device */
339 #if defined(SIOCSIFNAME)
340 ifr
.ifr_data
= (void *)name
;
341 error
= af_inet_ioctl(SIOCSIFNAME
, &ifr
);
343 destroy_tap(netdev
->tap_fd
, ifr
.ifr_name
);
344 goto error_unref_notifier
;
346 kernel_name
= xstrdup(name
);
349 * NetBSD doesn't support inteface renaming.
351 VLOG_INFO("tap %s is created for bridge %s", ifr
.ifr_name
, name
);
352 kernel_name
= xstrdup(ifr
.ifr_name
);
355 /* set non-blocking. */
356 error
= set_nonblocking(netdev
->tap_fd
);
358 destroy_tap(netdev
->tap_fd
, kernel_name
);
359 goto error_unref_notifier
;
363 ifr_set_flags(&ifr
, IFF_UP
);
364 strncpy(ifr
.ifr_name
, kernel_name
, sizeof ifr
.ifr_name
);
365 error
= af_inet_ioctl(SIOCSIFFLAGS
, &ifr
);
367 destroy_tap(netdev
->tap_fd
, kernel_name
);
368 goto error_unref_notifier
;
371 netdev
->kernel_name
= kernel_name
;
375 error_unref_notifier
:
376 ovs_mutex_destroy(&netdev
->mutex
);
377 cache_notifier_unref();
384 netdev_bsd_destruct(struct netdev
*netdev_
)
386 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
388 cache_notifier_unref();
390 if (netdev
->tap_fd
>= 0) {
391 destroy_tap(netdev
->tap_fd
, netdev_get_kernel_name(netdev_
));
394 pcap_close(netdev
->pcap
);
396 free(netdev
->kernel_name
);
397 ovs_mutex_destroy(&netdev
->mutex
);
401 netdev_bsd_dealloc(struct netdev
*netdev_
)
403 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
409 netdev_bsd_open_pcap(const char *name
, pcap_t
**pcapp
, int *fdp
)
411 char errbuf
[PCAP_ERRBUF_SIZE
];
417 /* Open the pcap device. The device is opened in non-promiscuous mode
418 * because the interface flags are manually set by the caller. */
420 pcap
= pcap_open_live(name
, PCAP_SNAPLEN
, 0, 1000, errbuf
);
422 VLOG_ERR_RL(&rl
, "%s: pcap_open_live failed: %s", name
, errbuf
);
426 if (errbuf
[0] != '\0') {
427 VLOG_WARN_RL(&rl
, "%s: pcap_open_live: %s", name
, errbuf
);
430 /* Get the underlying fd. */
431 fd
= pcap_get_selectable_fd(pcap
);
433 VLOG_WARN_RL(&rl
, "%s: no selectable file descriptor", name
);
438 /* Set non-blocking mode. Also the BIOCIMMEDIATE ioctl must be called
439 * on the file descriptor returned by pcap_get_selectable_fd to achieve
440 * a real non-blocking behaviour.*/
441 error
= pcap_setnonblock(pcap
, 1, errbuf
);
447 /* This call assure that reads return immediately upon packet
448 * reception. Otherwise, a read will block until either the kernel
449 * buffer becomes full or a timeout occurs. */
450 if (ioctl(fd
, BIOCIMMEDIATE
, &one
) < 0 ) {
451 VLOG_ERR_RL(&rl
, "ioctl(BIOCIMMEDIATE) on %s device failed: %s",
452 name
, ovs_strerror(errno
));
457 /* Capture only incoming packets. */
458 error
= pcap_setdirection(pcap
, PCAP_D_IN
);
477 static struct netdev_rxq
*
478 netdev_bsd_rxq_alloc(void)
480 struct netdev_rxq_bsd
*rxq
= xzalloc(sizeof *rxq
);
485 netdev_bsd_rxq_construct(struct netdev_rxq
*rxq_
)
487 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
488 struct netdev
*netdev_
= rxq
->up
.netdev
;
489 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
492 if (!strcmp(netdev_get_type(netdev_
), "tap")) {
493 rxq
->pcap_handle
= NULL
;
494 rxq
->fd
= netdev
->tap_fd
;
497 ovs_mutex_lock(&netdev
->mutex
);
498 error
= netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_
),
499 &rxq
->pcap_handle
, &rxq
->fd
);
500 ovs_mutex_unlock(&netdev
->mutex
);
507 netdev_bsd_rxq_destruct(struct netdev_rxq
*rxq_
)
509 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
511 if (rxq
->pcap_handle
) {
512 pcap_close(rxq
->pcap_handle
);
517 netdev_bsd_rxq_dealloc(struct netdev_rxq
*rxq_
)
519 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
524 /* The recv callback of the netdev class returns the number of bytes of the
527 * This can be done by the pcap_next() function. Unfortunately pcap_next() does
528 * not make difference between a missing packet on the capture interface and
529 * an error during the file capture. We can use the pcap_dispatch() function
530 * instead, which is able to distinguish between errors and null packet.
532 * To make pcap_dispatch() returns the number of bytes read from the interface
533 * we need to define the following callback and argument.
542 * This callback will be executed on every captured packet.
544 * If the packet captured by pcap_dispatch() does not fit the pcap buffer,
545 * pcap returns a truncated packet and we follow this behavior.
547 * The argument args->retval is the packet size in bytes.
550 proc_pkt(u_char
*args_
, const struct pcap_pkthdr
*hdr
, const u_char
*packet
)
552 struct pcap_arg
*args
= ALIGNED_CAST(struct pcap_arg
*, args_
);
554 if (args
->size
< hdr
->len
) {
555 VLOG_WARN_RL(&rl
, "packet truncated");
556 args
->retval
= args
->size
;
558 args
->retval
= hdr
->len
;
561 /* copy the packet to our buffer */
562 memcpy(args
->data
, packet
, args
->retval
);
566 * This function attempts to receive a packet from the specified network
567 * device. It is assumed that the network device is a system device or a tap
568 * device opened as a system one. In this case the read operation is performed
572 netdev_rxq_bsd_recv_pcap(struct netdev_rxq_bsd
*rxq
, struct ofpbuf
*buffer
)
577 /* prepare the pcap argument to store the packet */
578 arg
.size
= ofpbuf_tailroom(buffer
);
579 arg
.data
= ofpbuf_data(buffer
);
582 ret
= pcap_dispatch(rxq
->pcap_handle
, 1, proc_pkt
, (u_char
*) &arg
);
585 ofpbuf_set_size(buffer
, ofpbuf_size(buffer
) + arg
.retval
);
589 if (errno
== EINTR
) {
599 * This function attempts to receive a packet from the specified network
600 * device. It is assumed that the network device is a tap device and
601 * 'rxq->fd' is initialized with the tap file descriptor.
604 netdev_rxq_bsd_recv_tap(struct netdev_rxq_bsd
*rxq
, struct ofpbuf
*buffer
)
606 size_t size
= ofpbuf_tailroom(buffer
);
609 ssize_t retval
= read(rxq
->fd
, ofpbuf_data(buffer
), size
);
611 ofpbuf_set_size(buffer
, ofpbuf_size(buffer
) + retval
);
613 } else if (errno
!= EINTR
) {
614 if (errno
!= EAGAIN
) {
615 VLOG_WARN_RL(&rl
, "error receiving Ethernet packet on %s: %s",
616 ovs_strerror(errno
), netdev_rxq_get_name(&rxq
->up
));
624 netdev_bsd_rxq_recv(struct netdev_rxq
*rxq_
, struct dpif_packet
**packets
,
627 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
628 struct netdev
*netdev
= rxq
->up
.netdev
;
629 struct dpif_packet
*packet
;
630 struct ofpbuf
*buffer
;
634 if (netdev_bsd_get_mtu(netdev
, &mtu
)) {
635 mtu
= ETH_PAYLOAD_MAX
;
638 packet
= dpif_packet_new_with_headroom(VLAN_ETH_HEADER_LEN
+ mtu
,
640 buffer
= &packet
->ofpbuf
;
642 retval
= (rxq
->pcap_handle
643 ? netdev_rxq_bsd_recv_pcap(rxq
, buffer
)
644 : netdev_rxq_bsd_recv_tap(rxq
, buffer
));
647 dpif_packet_delete(packet
);
649 dp_packet_pad(buffer
);
650 dpif_packet_set_dp_hash(packet
, 0);
658 * Registers with the poll loop to wake up from the next call to poll_block()
659 * when a packet is ready to be received with netdev_rxq_recv() on 'rxq'.
662 netdev_bsd_rxq_wait(struct netdev_rxq
*rxq_
)
664 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
666 poll_fd_wait(rxq
->fd
, POLLIN
);
669 /* Discards all packets waiting to be received from 'rxq'. */
671 netdev_bsd_rxq_drain(struct netdev_rxq
*rxq_
)
674 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
676 strcpy(ifr
.ifr_name
, netdev_get_kernel_name(netdev_rxq_get_netdev(rxq_
)));
677 if (ioctl(rxq
->fd
, BIOCFLUSH
, &ifr
) == -1) {
678 VLOG_DBG_RL(&rl
, "%s: ioctl(BIOCFLUSH) failed: %s",
679 netdev_rxq_get_name(rxq_
), ovs_strerror(errno
));
686 * Send a packet on the specified network device. The device could be either a
687 * system or a tap device.
690 netdev_bsd_send(struct netdev
*netdev_
, int qid OVS_UNUSED
,
691 struct dpif_packet
**pkts
, int cnt
, bool may_steal
)
693 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
694 const char *name
= netdev_get_name(netdev_
);
698 ovs_mutex_lock(&dev
->mutex
);
699 if (dev
->tap_fd
< 0 && !dev
->pcap
) {
700 error
= netdev_bsd_open_pcap(name
, &dev
->pcap
, &dev
->fd
);
705 for (i
= 0; i
< cnt
; i
++) {
706 const void *data
= ofpbuf_data(&pkts
[i
]->ofpbuf
);
707 size_t size
= ofpbuf_size(&pkts
[i
]->ofpbuf
);
711 if (dev
->tap_fd
>= 0) {
712 retval
= write(dev
->tap_fd
, data
, size
);
714 retval
= pcap_inject(dev
->pcap
, data
, size
);
717 if (errno
== EINTR
) {
721 if (error
!= EAGAIN
) {
722 VLOG_WARN_RL(&rl
, "error sending Ethernet packet on"
723 " %s: %s", name
, ovs_strerror(error
));
726 } else if (retval
!= size
) {
727 VLOG_WARN_RL(&rl
, "sent partial Ethernet packet "
728 "(%"PRIuSIZE
" bytes of "
729 "%"PRIuSIZE
") on %s", retval
, size
, name
);
737 ovs_mutex_unlock(&dev
->mutex
);
739 for (i
= 0; i
< cnt
; i
++) {
740 dpif_packet_delete(pkts
[i
]);
748 * Registers with the poll loop to wake up from the next call to poll_block()
749 * when the packet transmission queue has sufficient room to transmit a packet
750 * with netdev_send().
753 netdev_bsd_send_wait(struct netdev
*netdev_
, int qid OVS_UNUSED
)
755 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
757 ovs_mutex_lock(&dev
->mutex
);
758 if (dev
->tap_fd
>= 0) {
759 /* TAP device always accepts packets. */
760 poll_immediate_wake();
761 } else if (dev
->pcap
) {
762 poll_fd_wait(dev
->fd
, POLLOUT
);
764 /* We haven't even tried to send a packet yet. */
765 poll_immediate_wake();
767 ovs_mutex_unlock(&dev
->mutex
);
771 * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful,
772 * otherwise a positive errno value.
775 netdev_bsd_set_etheraddr(struct netdev
*netdev_
,
776 const uint8_t mac
[ETH_ADDR_LEN
])
778 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
781 ovs_mutex_lock(&netdev
->mutex
);
782 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)
783 || !eth_addr_equals(netdev
->etheraddr
, mac
)) {
784 error
= set_etheraddr(netdev_get_kernel_name(netdev_
), AF_LINK
,
787 netdev
->cache_valid
|= VALID_ETHERADDR
;
788 memcpy(netdev
->etheraddr
, mac
, ETH_ADDR_LEN
);
789 netdev_change_seq_changed(netdev_
);
792 ovs_mutex_unlock(&netdev
->mutex
);
798 * Returns a pointer to 'netdev''s MAC address. The caller must not modify or
799 * free the returned buffer.
802 netdev_bsd_get_etheraddr(const struct netdev
*netdev_
,
803 uint8_t mac
[ETH_ADDR_LEN
])
805 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
808 ovs_mutex_lock(&netdev
->mutex
);
809 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)) {
810 error
= get_etheraddr(netdev_get_kernel_name(netdev_
),
813 netdev
->cache_valid
|= VALID_ETHERADDR
;
817 memcpy(mac
, netdev
->etheraddr
, ETH_ADDR_LEN
);
819 ovs_mutex_unlock(&netdev
->mutex
);
825 * Returns the maximum size of transmitted (and received) packets on 'netdev',
826 * in bytes, not including the hardware header; thus, this is typically 1500
827 * bytes for Ethernet devices.
830 netdev_bsd_get_mtu(const struct netdev
*netdev_
, int *mtup
)
832 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
835 ovs_mutex_lock(&netdev
->mutex
);
836 if (!(netdev
->cache_valid
& VALID_MTU
)) {
839 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
840 SIOCGIFMTU
, "SIOCGIFMTU");
842 netdev
->mtu
= ifr
.ifr_mtu
;
843 netdev
->cache_valid
|= VALID_MTU
;
849 ovs_mutex_unlock(&netdev
->mutex
);
855 netdev_bsd_get_ifindex(const struct netdev
*netdev_
)
857 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
860 ovs_mutex_lock(&netdev
->mutex
);
861 error
= get_ifindex(netdev_
, &ifindex
);
862 ovs_mutex_unlock(&netdev
->mutex
);
864 return error
? -error
: ifindex
;
868 netdev_bsd_get_carrier(const struct netdev
*netdev_
, bool *carrier
)
870 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
873 ovs_mutex_lock(&netdev
->mutex
);
874 if (!(netdev
->cache_valid
& VALID_CARRIER
)) {
875 struct ifmediareq ifmr
;
877 memset(&ifmr
, 0, sizeof(ifmr
));
878 strncpy(ifmr
.ifm_name
, netdev_get_kernel_name(netdev_
),
879 sizeof ifmr
.ifm_name
);
881 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
883 netdev
->carrier
= (ifmr
.ifm_status
& IFM_ACTIVE
) == IFM_ACTIVE
;
884 netdev
->cache_valid
|= VALID_CARRIER
;
886 /* If the interface doesn't report whether the media is active,
887 * just assume it is active. */
888 if ((ifmr
.ifm_status
& IFM_AVALID
) == 0) {
889 netdev
->carrier
= true;
892 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
893 netdev_get_name(netdev_
), ovs_strerror(error
));
897 *carrier
= netdev
->carrier
;
899 ovs_mutex_unlock(&netdev
->mutex
);
905 convert_stats_system(struct netdev_stats
*stats
, const struct if_data
*ifd
)
908 * note: UINT64_MAX means unsupported
910 stats
->rx_packets
= ifd
->ifi_ipackets
;
911 stats
->tx_packets
= ifd
->ifi_opackets
;
912 stats
->rx_bytes
= ifd
->ifi_obytes
;
913 stats
->tx_bytes
= ifd
->ifi_ibytes
;
914 stats
->rx_errors
= ifd
->ifi_ierrors
;
915 stats
->tx_errors
= ifd
->ifi_oerrors
;
916 stats
->rx_dropped
= ifd
->ifi_iqdrops
;
917 stats
->tx_dropped
= UINT64_MAX
;
918 stats
->multicast
= ifd
->ifi_imcasts
;
919 stats
->collisions
= ifd
->ifi_collisions
;
920 stats
->rx_length_errors
= UINT64_MAX
;
921 stats
->rx_over_errors
= UINT64_MAX
;
922 stats
->rx_crc_errors
= UINT64_MAX
;
923 stats
->rx_frame_errors
= UINT64_MAX
;
924 stats
->rx_fifo_errors
= UINT64_MAX
;
925 stats
->rx_missed_errors
= UINT64_MAX
;
926 stats
->tx_aborted_errors
= UINT64_MAX
;
927 stats
->tx_carrier_errors
= UINT64_MAX
;
928 stats
->tx_fifo_errors
= UINT64_MAX
;
929 stats
->tx_heartbeat_errors
= UINT64_MAX
;
930 stats
->tx_window_errors
= UINT64_MAX
;
934 convert_stats_tap(struct netdev_stats
*stats
, const struct if_data
*ifd
)
937 * Similar to convert_stats_system but swapping rxq and tx
938 * because 'ifd' is stats for the network interface side of the
939 * tap device and what the caller wants is one for the character
942 * note: UINT64_MAX means unsupported
944 stats
->rx_packets
= ifd
->ifi_opackets
;
945 stats
->tx_packets
= ifd
->ifi_ipackets
;
946 stats
->rx_bytes
= ifd
->ifi_ibytes
;
947 stats
->tx_bytes
= ifd
->ifi_obytes
;
948 stats
->rx_errors
= ifd
->ifi_oerrors
;
949 stats
->tx_errors
= ifd
->ifi_ierrors
;
950 stats
->rx_dropped
= UINT64_MAX
;
951 stats
->tx_dropped
= ifd
->ifi_iqdrops
;
952 stats
->multicast
= ifd
->ifi_omcasts
;
953 stats
->collisions
= UINT64_MAX
;
954 stats
->rx_length_errors
= UINT64_MAX
;
955 stats
->rx_over_errors
= UINT64_MAX
;
956 stats
->rx_crc_errors
= UINT64_MAX
;
957 stats
->rx_frame_errors
= UINT64_MAX
;
958 stats
->rx_fifo_errors
= UINT64_MAX
;
959 stats
->rx_missed_errors
= UINT64_MAX
;
960 stats
->tx_aborted_errors
= UINT64_MAX
;
961 stats
->tx_carrier_errors
= UINT64_MAX
;
962 stats
->tx_fifo_errors
= UINT64_MAX
;
963 stats
->tx_heartbeat_errors
= UINT64_MAX
;
964 stats
->tx_window_errors
= UINT64_MAX
;
968 convert_stats(const struct netdev
*netdev
, struct netdev_stats
*stats
,
969 const struct if_data
*ifd
)
971 if (netdev_bsd_cast(netdev
)->tap_fd
== -1) {
972 convert_stats_system(stats
, ifd
);
974 convert_stats_tap(stats
, ifd
);
978 /* Retrieves current device stats for 'netdev'. */
980 netdev_bsd_get_stats(const struct netdev
*netdev_
, struct netdev_stats
*stats
)
982 #if defined(__FreeBSD__)
986 struct ifmibdata ifmd
;
991 mib
[2] = NETLINK_GENERIC
;
992 mib
[3] = IFMIB_SYSTEM
;
993 mib
[4] = IFMIB_IFCOUNT
;
995 len
= sizeof(if_count
);
997 if (sysctl(mib
, 5, &if_count
, &len
, (void *)0, 0) == -1) {
998 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
999 netdev_get_name(netdev_
), ovs_strerror(errno
));
1003 mib
[5] = IFDATA_GENERAL
;
1004 mib
[3] = IFMIB_IFDATA
;
1006 for (i
= 1; i
<= if_count
; i
++) {
1008 if (sysctl(mib
, 6, &ifmd
, &len
, (void *)0, 0) == -1) {
1009 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
1010 netdev_get_name(netdev_
), ovs_strerror(errno
));
1012 } else if (!strcmp(ifmd
.ifmd_name
, netdev_get_name(netdev_
))) {
1013 convert_stats(netdev_
, stats
, &ifmd
.ifmd_data
);
1019 #elif defined(__NetBSD__)
1020 struct ifdatareq ifdr
;
1023 memset(&ifdr
, 0, sizeof(ifdr
));
1024 strncpy(ifdr
.ifdr_name
, netdev_get_kernel_name(netdev_
),
1025 sizeof(ifdr
.ifdr_name
));
1026 error
= af_link_ioctl(SIOCGIFDATA
, &ifdr
);
1028 convert_stats(netdev_
, stats
, &ifdr
.ifdr_data
);
1032 #error not implemented
1037 netdev_bsd_parse_media(int media
)
1039 uint32_t supported
= 0;
1040 bool half_duplex
= media
& IFM_HDX
? true : false;
1042 switch (IFM_SUBTYPE(media
)) {
1047 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
1048 supported
|= NETDEV_F_COPPER
;
1052 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
1053 supported
|= NETDEV_F_FIBER
;
1060 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
1061 supported
|= NETDEV_F_COPPER
;
1065 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
1066 supported
|= NETDEV_F_FIBER
;
1071 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
1072 supported
|= NETDEV_F_COPPER
;
1077 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
1078 supported
|= NETDEV_F_FIBER
;
1082 supported
|= NETDEV_F_10GB_FD
;
1083 supported
|= NETDEV_F_COPPER
;
1088 supported
|= NETDEV_F_10GB_FD
;
1089 supported
|= NETDEV_F_FIBER
;
1096 if (IFM_SUBTYPE(media
) == IFM_AUTO
) {
1097 supported
|= NETDEV_F_AUTONEG
;
1100 if (media & IFM_ETH_FMASK) {
1101 supported |= NETDEV_F_PAUSE;
1109 * Stores the features supported by 'netdev' into each of '*current',
1110 * '*advertised', '*supported', and '*peer' that are non-null. Each value is a
1111 * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if
1112 * successful, otherwise a positive errno value. On failure, all of the
1113 * passed-in values are set to 0.
1116 netdev_bsd_get_features(const struct netdev
*netdev
,
1117 enum netdev_features
*current
, uint32_t *advertised
,
1118 enum netdev_features
*supported
, uint32_t *peer
)
1120 struct ifmediareq ifmr
;
1126 /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */
1128 memset(&ifmr
, 0, sizeof(ifmr
));
1129 strncpy(ifmr
.ifm_name
, netdev_get_name(netdev
), sizeof ifmr
.ifm_name
);
1131 /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the
1132 * number of supported modes, and a second with a buffer to retrieve
1134 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
1136 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1137 netdev_get_name(netdev
), ovs_strerror(error
));
1141 media_list
= xcalloc(ifmr
.ifm_count
, sizeof(int));
1142 ifmr
.ifm_ulist
= media_list
;
1144 if (IFM_TYPE(ifmr
.ifm_current
) != IFM_ETHER
) {
1145 VLOG_DBG_RL(&rl
, "%s: doesn't appear to be ethernet",
1146 netdev_get_name(netdev
));
1151 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
1153 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1154 netdev_get_name(netdev
), ovs_strerror(error
));
1158 /* Current settings. */
1159 *current
= netdev_bsd_parse_media(ifmr
.ifm_active
);
1161 /* Advertised features. */
1162 *advertised
= netdev_bsd_parse_media(ifmr
.ifm_current
);
1164 /* Supported features. */
1166 for (i
= 0; i
< ifmr
.ifm_count
; i
++) {
1167 *supported
|= netdev_bsd_parse_media(ifmr
.ifm_ulist
[i
]);
1170 /* Peer advertisements. */
1171 *peer
= 0; /* XXX */
1180 * If 'netdev' has an assigned IPv4 address, sets '*in4' to that address and
1181 * '*netmask' to its netmask and returns true. Otherwise, returns false.
1184 netdev_bsd_get_in4(const struct netdev
*netdev_
, struct in_addr
*in4
,
1185 struct in_addr
*netmask
)
1187 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1190 ovs_mutex_lock(&netdev
->mutex
);
1191 if (!(netdev
->cache_valid
& VALID_IN4
)) {
1194 ifr
.ifr_addr
.sa_family
= AF_INET
;
1195 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
1196 SIOCGIFADDR
, "SIOCGIFADDR");
1198 const struct sockaddr_in
*sin
;
1200 sin
= ALIGNED_CAST(struct sockaddr_in
*, &ifr
.ifr_addr
);
1201 netdev
->in4
= sin
->sin_addr
;
1202 netdev
->cache_valid
|= VALID_IN4
;
1203 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
1204 SIOCGIFNETMASK
, "SIOCGIFNETMASK");
1206 *netmask
= sin
->sin_addr
;
1212 *netmask
= netdev
->netmask
;
1214 ovs_mutex_unlock(&netdev
->mutex
);
1216 return error
? error
: in4
->s_addr
== INADDR_ANY
? EADDRNOTAVAIL
: 0;
1220 * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If
1221 * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a
1222 * positive errno value.
1225 netdev_bsd_set_in4(struct netdev
*netdev_
, struct in_addr addr
,
1226 struct in_addr mask
)
1228 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1231 ovs_mutex_lock(&netdev
->mutex
);
1232 error
= do_set_addr(netdev_
, SIOCSIFADDR
, "SIOCSIFADDR", addr
);
1234 if (addr
.s_addr
!= INADDR_ANY
) {
1235 error
= do_set_addr(netdev_
, SIOCSIFNETMASK
,
1236 "SIOCSIFNETMASK", mask
);
1238 netdev
->cache_valid
|= VALID_IN4
;
1240 netdev
->netmask
= mask
;
1243 netdev_change_seq_changed(netdev_
);
1245 ovs_mutex_unlock(&netdev
->mutex
);
1251 netdev_bsd_get_in6(const struct netdev
*netdev_
, struct in6_addr
*in6
)
1253 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1254 if (!(netdev
->cache_valid
& VALID_IN6
)) {
1255 struct ifaddrs
*ifa
, *head
;
1256 struct sockaddr_in6
*sin6
;
1257 const char *netdev_name
= netdev_get_name(netdev_
);
1259 if (getifaddrs(&head
) != 0) {
1260 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1261 ovs_strerror(errno
));
1265 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1266 if (ifa
->ifa_addr
->sa_family
== AF_INET6
&&
1267 !strcmp(ifa
->ifa_name
, netdev_name
)) {
1268 sin6
= ALIGNED_CAST(struct sockaddr_in6
*, ifa
->ifa_addr
);
1270 memcpy(&netdev
->in6
, &sin6
->sin6_addr
, sin6
->sin6_len
);
1271 netdev
->cache_valid
|= VALID_IN6
;
1278 return EADDRNOTAVAIL
;
1284 #if defined(__NetBSD__)
1286 netdev_bsd_kernel_name_to_ovs_name(const char *kernel_name
)
1288 char *ovs_name
= NULL
;
1289 struct shash device_shash
;
1290 struct shash_node
*node
;
1292 shash_init(&device_shash
);
1293 netdev_get_devices(&netdev_tap_class
, &device_shash
);
1294 SHASH_FOR_EACH(node
, &device_shash
) {
1295 struct netdev
*netdev
= node
->data
;
1296 struct netdev_bsd
* const dev
= netdev_bsd_cast(netdev
);
1298 if (!strcmp(dev
->kernel_name
, kernel_name
)) {
1300 ovs_name
= xstrdup(netdev_get_name(&dev
->up
));
1302 netdev_close(netdev
);
1304 shash_destroy(&device_shash
);
1306 return ovs_name
? ovs_name
: xstrdup(kernel_name
);
1311 netdev_bsd_get_next_hop(const struct in_addr
*host OVS_UNUSED
,
1312 struct in_addr
*next_hop OVS_UNUSED
,
1313 char **netdev_name OVS_UNUSED
)
1315 #if defined(__NetBSD__)
1317 struct sockaddr_in sin
;
1318 struct sockaddr_dl sdl
;
1325 struct rt_msghdr
*rtm
= &buf
.h
;
1326 const pid_t pid
= getpid();
1329 bool gateway
= false;
1330 char *ifname
= NULL
;
1333 memset(next_hop
, 0, sizeof(*next_hop
));
1334 *netdev_name
= NULL
;
1336 memset(&sin
, 0, sizeof(sin
));
1337 sin
.sin_len
= sizeof(sin
);
1338 sin
.sin_family
= AF_INET
;
1340 sin
.sin_addr
= *host
;
1342 memset(&sdl
, 0, sizeof(sdl
));
1343 sdl
.sdl_len
= sizeof(sdl
);
1344 sdl
.sdl_family
= AF_LINK
;
1346 s
= socket(PF_ROUTE
, SOCK_RAW
, 0);
1347 memset(&buf
, 0, sizeof(buf
));
1348 rtm
->rtm_flags
= RTF_HOST
|RTF_UP
;
1349 rtm
->rtm_version
= RTM_VERSION
;
1350 rtm
->rtm_addrs
= RTA_DST
|RTA_IFP
;
1351 cp
= (void *)&buf
.space
;
1352 memcpy(cp
, &sin
, sizeof(sin
));
1353 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sin
);
1354 memcpy(cp
, &sdl
, sizeof(sdl
));
1355 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sdl
);
1356 rtm
->rtm_msglen
= cp
- (char *)(void *)rtm
;
1357 rtm
->rtm_seq
= ++seq
;
1358 rtm
->rtm_type
= RTM_GET
;
1360 write(s
, rtm
, rtm
->rtm_msglen
);
1361 memset(&buf
, 0, sizeof(buf
));
1363 ssz
= read(s
, &buf
, sizeof(buf
));
1364 } while (ssz
> 0 && (rtm
->rtm_seq
!= seq
|| rtm
->rtm_pid
!= pid
));
1365 saved_errno
= errno
;
1371 return EPIPE
; /* XXX */
1373 cp
= (void *)&buf
.space
;
1374 for (i
= 1; i
; i
<<= 1) {
1375 if ((rtm
->rtm_addrs
& i
) != 0) {
1376 const struct sockaddr
*sa
= (const void *)cp
;
1378 if ((i
== RTA_GATEWAY
) && sa
->sa_family
== AF_INET
) {
1379 const struct sockaddr_in
* const sin
=
1380 ALIGNED_CAST(const struct sockaddr_in
*, sa
);
1382 *next_hop
= sin
->sin_addr
;
1385 if ((i
== RTA_IFP
) && sa
->sa_family
== AF_LINK
) {
1386 const struct sockaddr_dl
* const sdl
=
1387 ALIGNED_CAST(const struct sockaddr_dl
*, sa
);
1390 kernel_name
= xmemdup0(sdl
->sdl_data
, sdl
->sdl_nlen
);
1391 ifname
= netdev_bsd_kernel_name_to_ovs_name(kernel_name
);
1397 if (ifname
== NULL
) {
1403 *netdev_name
= ifname
;
1404 VLOG_DBG("host " IP_FMT
" next-hop " IP_FMT
" if %s",
1405 IP_ARGS(host
->s_addr
), IP_ARGS(next_hop
->s_addr
), *netdev_name
);
1413 netdev_bsd_arp_lookup(const struct netdev
*netdev OVS_UNUSED
,
1414 ovs_be32 ip OVS_UNUSED
,
1415 uint8_t mac
[ETH_ADDR_LEN
] OVS_UNUSED
)
1417 #if defined(__NetBSD__)
1418 const struct rt_msghdr
*rtm
;
1431 mib
[4] = NET_RT_FLAGS
;
1432 mib
[5] = RTF_LLINFO
;
1433 if (sysctl(mib
, 6, NULL
, &needed
, NULL
, 0) == -1) {
1437 buf
= xmalloc(needed
);
1438 if (sysctl(mib
, 6, buf
, &needed
, NULL
, 0) == -1) {
1443 for (cp
= buf
; cp
< ep
; cp
+= rtm
->rtm_msglen
) {
1444 const struct sockaddr_inarp
*sina
;
1445 const struct sockaddr_dl
*sdl
;
1447 rtm
= (const void *)cp
;
1448 sina
= (const void *)(rtm
+ 1);
1449 if (ip
!= sina
->sin_addr
.s_addr
) {
1452 sdl
= (const void *)
1453 ((const char *)(const void *)sina
+ RT_ROUNDUP(sina
->sin_len
));
1454 if (sdl
->sdl_alen
== ETH_ADDR_LEN
) {
1455 memcpy(mac
, &sdl
->sdl_data
[sdl
->sdl_nlen
], ETH_ADDR_LEN
);
1470 make_in4_sockaddr(struct sockaddr
*sa
, struct in_addr addr
)
1472 struct sockaddr_in sin
;
1473 memset(&sin
, 0, sizeof sin
);
1474 sin
.sin_family
= AF_INET
;
1475 sin
.sin_addr
= addr
;
1478 memset(sa
, 0, sizeof *sa
);
1479 memcpy(sa
, &sin
, sizeof sin
);
1483 do_set_addr(struct netdev
*netdev
,
1484 unsigned long ioctl_nr
, const char *ioctl_name
,
1485 struct in_addr addr
)
1488 make_in4_sockaddr(&ifr
.ifr_addr
, addr
);
1489 return af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev
), &ifr
, ioctl_nr
,
1494 nd_to_iff_flags(enum netdev_flags nd
)
1497 if (nd
& NETDEV_UP
) {
1500 if (nd
& NETDEV_PROMISC
) {
1502 #if defined(IFF_PPROMISC)
1503 iff
|= IFF_PPROMISC
;
1506 if (nd
& NETDEV_LOOPBACK
) {
1507 iff
|= IFF_LOOPBACK
;
1513 iff_to_nd_flags(int iff
)
1515 enum netdev_flags nd
= 0;
1519 if (iff
& IFF_PROMISC
) {
1520 nd
|= NETDEV_PROMISC
;
1522 if (iff
& IFF_LOOPBACK
) {
1523 nd
|= NETDEV_LOOPBACK
;
1529 netdev_bsd_update_flags(struct netdev
*netdev_
, enum netdev_flags off
,
1530 enum netdev_flags on
, enum netdev_flags
*old_flagsp
)
1532 int old_flags
, new_flags
;
1535 error
= get_flags(netdev_
, &old_flags
);
1537 *old_flagsp
= iff_to_nd_flags(old_flags
);
1538 new_flags
= (old_flags
& ~nd_to_iff_flags(off
)) | nd_to_iff_flags(on
);
1539 if (new_flags
!= old_flags
) {
1540 error
= set_flags(netdev_get_kernel_name(netdev_
), new_flags
);
1541 netdev_change_seq_changed(netdev_
);
1547 /* Linux has also different GET_STATS, SET_STATS,
1550 #define NETDEV_BSD_CLASS(NAME, CONSTRUCT, \
1560 netdev_bsd_destruct, \
1561 netdev_bsd_dealloc, \
1562 NULL, /* get_config */ \
1563 NULL, /* set_config */ \
1564 NULL, /* get_tunnel_config */ \
1565 NULL, /* build header */ \
1566 NULL, /* push header */ \
1567 NULL, /* pop header */ \
1568 NULL, /* get_numa_id */ \
1569 NULL, /* set_multiq */ \
1572 netdev_bsd_send_wait, \
1574 netdev_bsd_set_etheraddr, \
1575 netdev_bsd_get_etheraddr, \
1576 netdev_bsd_get_mtu, \
1577 NULL, /* set_mtu */ \
1578 netdev_bsd_get_ifindex, \
1579 netdev_bsd_get_carrier, \
1580 NULL, /* get_carrier_resets */ \
1581 NULL, /* set_miimon_interval */ \
1582 netdev_bsd_get_stats, \
1585 NULL, /* set_advertisement */ \
1586 NULL, /* set_policing */ \
1587 NULL, /* get_qos_type */ \
1588 NULL, /* get_qos_capabilities */ \
1589 NULL, /* get_qos */ \
1590 NULL, /* set_qos */ \
1591 NULL, /* get_queue */ \
1592 NULL, /* set_queue */ \
1593 NULL, /* delete_queue */ \
1594 NULL, /* get_queue_stats */ \
1595 NULL, /* queue_dump_start */ \
1596 NULL, /* queue_dump_next */ \
1597 NULL, /* queue_dump_done */ \
1598 NULL, /* dump_queue_stats */ \
1600 netdev_bsd_get_in4, \
1601 netdev_bsd_set_in4, \
1602 netdev_bsd_get_in6, \
1603 NULL, /* add_router */ \
1604 netdev_bsd_get_next_hop, \
1605 NULL, /* get_status */ \
1606 netdev_bsd_arp_lookup, /* arp_lookup */ \
1608 netdev_bsd_update_flags, \
1610 netdev_bsd_rxq_alloc, \
1611 netdev_bsd_rxq_construct, \
1612 netdev_bsd_rxq_destruct, \
1613 netdev_bsd_rxq_dealloc, \
1614 netdev_bsd_rxq_recv, \
1615 netdev_bsd_rxq_wait, \
1616 netdev_bsd_rxq_drain, \
1619 const struct netdev_class netdev_bsd_class
=
1622 netdev_bsd_construct_system
,
1623 netdev_bsd_get_features
);
1625 const struct netdev_class netdev_tap_class
=
1628 netdev_bsd_construct_tap
,
1629 netdev_bsd_get_features
);
1633 destroy_tap(int fd
, const char *name
)
1638 strcpy(ifr
.ifr_name
, name
);
1639 /* XXX What to do if this call fails? */
1640 af_inet_ioctl(SIOCIFDESTROY
, &ifr
);
1644 get_flags(const struct netdev
*netdev
, int *flags
)
1649 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev
), &ifr
,
1650 SIOCGIFFLAGS
, "SIOCGIFFLAGS");
1652 *flags
= ifr_get_flags(&ifr
);
1658 set_flags(const char *name
, int flags
)
1662 ifr_set_flags(&ifr
, flags
);
1664 return af_inet_ifreq_ioctl(name
, &ifr
, SIOCSIFFLAGS
, "SIOCSIFFLAGS");
1668 get_ifindex(const struct netdev
*netdev_
, int *ifindexp
)
1670 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1672 if (!(netdev
->cache_valid
& VALID_IFINDEX
)) {
1673 int ifindex
= if_nametoindex(netdev_get_name(netdev_
));
1677 netdev
->cache_valid
|= VALID_IFINDEX
;
1678 netdev
->ifindex
= ifindex
;
1680 *ifindexp
= netdev
->ifindex
;
1685 get_etheraddr(const char *netdev_name
, uint8_t ea
[ETH_ADDR_LEN
])
1687 struct ifaddrs
*head
;
1688 struct ifaddrs
*ifa
;
1689 struct sockaddr_dl
*sdl
;
1691 if (getifaddrs(&head
) != 0) {
1692 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1693 ovs_strerror(errno
));
1697 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1698 if (ifa
->ifa_addr
->sa_family
== AF_LINK
) {
1699 if (!strcmp(ifa
->ifa_name
, netdev_name
)) {
1700 sdl
= ALIGNED_CAST(struct sockaddr_dl
*, ifa
->ifa_addr
);
1702 memcpy(ea
, LLADDR(sdl
), sdl
->sdl_alen
);
1710 VLOG_ERR("could not find ethernet address for %s device", netdev_name
);
1716 set_etheraddr(const char *netdev_name OVS_UNUSED
, int hwaddr_family OVS_UNUSED
,
1717 int hwaddr_len OVS_UNUSED
,
1718 const uint8_t mac
[ETH_ADDR_LEN
] OVS_UNUSED
)
1720 #if defined(__FreeBSD__)
1724 memset(&ifr
, 0, sizeof ifr
);
1725 strncpy(ifr
.ifr_name
, netdev_name
, sizeof ifr
.ifr_name
);
1726 ifr
.ifr_addr
.sa_family
= hwaddr_family
;
1727 ifr
.ifr_addr
.sa_len
= hwaddr_len
;
1728 memcpy(ifr
.ifr_addr
.sa_data
, mac
, hwaddr_len
);
1729 error
= af_inet_ioctl(SIOCSIFLLADDR
, &ifr
);
1731 VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s",
1732 netdev_name
, ovs_strerror(error
));
1736 #elif defined(__NetBSD__)
1737 struct if_laddrreq req
;
1738 struct sockaddr_dl
*sdl
;
1739 struct sockaddr_storage oldaddr
;
1743 * get the old address, add new one, and then remove old one.
1746 if (hwaddr_len
!= ETH_ADDR_LEN
) {
1747 /* just to be safe about sockaddr storage size */
1750 memset(&req
, 0, sizeof(req
));
1751 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1752 req
.addr
.ss_len
= sizeof(req
.addr
);
1753 req
.addr
.ss_family
= hwaddr_family
;
1754 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1755 sdl
->sdl_alen
= hwaddr_len
;
1757 error
= af_link_ioctl(SIOCGLIFADDR
, &req
);
1761 if (!memcmp(&sdl
->sdl_data
[sdl
->sdl_nlen
], mac
, hwaddr_len
)) {
1766 memset(&req
, 0, sizeof(req
));
1767 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1768 req
.flags
= IFLR_ACTIVE
;
1769 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1770 sdl
->sdl_len
= offsetof(struct sockaddr_dl
, sdl_data
) + hwaddr_len
;
1771 sdl
->sdl_alen
= hwaddr_len
;
1772 sdl
->sdl_family
= hwaddr_family
;
1773 memcpy(sdl
->sdl_data
, mac
, hwaddr_len
);
1774 error
= af_link_ioctl(SIOCALIFADDR
, &req
);
1779 memset(&req
, 0, sizeof(req
));
1780 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1782 return af_link_ioctl(SIOCDLIFADDR
, &req
);
1784 #error not implemented
1789 ifr_get_flags(const struct ifreq
*ifr
)
1791 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1792 return (ifr
->ifr_flagshigh
<< 16) | ifr
->ifr_flags
;
1794 return ifr
->ifr_flags
;
1799 ifr_set_flags(struct ifreq
*ifr
, int flags
)
1801 ifr
->ifr_flags
= flags
;
1802 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1803 ifr
->ifr_flagshigh
= flags
>> 16;
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