2 * Copyright (c) 2011, 2013 Gaetano Catalli.
3 * Copyright (c) 2013 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>
50 #include "connectivity.h"
52 #include "dynamic-string.h"
53 #include "fatal-signal.h"
55 #include "openflow/openflow.h"
56 #include "ovs-thread.h"
58 #include "poll-loop.h"
61 #include "socket-util.h"
66 VLOG_DEFINE_THIS_MODULE(netdev_bsd
);
69 struct netdev_rx_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);
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_rx_bsd
*
169 netdev_rx_bsd_cast(const struct netdev_rx
*rx
)
171 ovs_assert(is_netdev_bsd_class(netdev_get_class(rx
->netdev
)));
172 return CONTAINER_OF(rx
, struct netdev_rx_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 seq_change(connectivity_seq_get());
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 seq_change(connectivity_seq_get());
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 strncpy(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_rx
*
477 netdev_bsd_rx_alloc(void)
479 struct netdev_rx_bsd
*rx
= xzalloc(sizeof *rx
);
484 netdev_bsd_rx_construct(struct netdev_rx
*rx_
)
486 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
487 struct netdev
*netdev_
= rx
->up
.netdev
;
488 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
491 if (!strcmp(netdev_get_type(netdev_
), "tap")) {
492 rx
->pcap_handle
= NULL
;
493 rx
->fd
= netdev
->tap_fd
;
496 ovs_mutex_lock(&netdev
->mutex
);
497 error
= netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_
),
498 &rx
->pcap_handle
, &rx
->fd
);
499 ovs_mutex_unlock(&netdev
->mutex
);
506 netdev_bsd_rx_destruct(struct netdev_rx
*rx_
)
508 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
510 if (rx
->pcap_handle
) {
511 pcap_close(rx
->pcap_handle
);
516 netdev_bsd_rx_dealloc(struct netdev_rx
*rx_
)
518 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
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
= (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_rx_bsd_recv_pcap(struct netdev_rx_bsd
*rx
, void *data
, size_t size
)
576 /* prepare the pcap argument to store the packet */
581 ret
= pcap_dispatch(rx
->pcap_handle
, 1, proc_pkt
, (u_char
*) &arg
);
584 return arg
.retval
; /* arg.retval < 0 is handled in the caller */
587 if (errno
== EINTR
) {
597 * This function attempts to receive a packet from the specified network
598 * device. It is assumed that the network device is a tap device and
599 * 'rx->fd' is initialized with the tap file descriptor.
602 netdev_rx_bsd_recv_tap(struct netdev_rx_bsd
*rx
, void *data
, size_t size
)
605 ssize_t retval
= read(rx
->fd
, data
, size
);
608 } else if (errno
!= EINTR
) {
609 if (errno
!= EAGAIN
) {
610 VLOG_WARN_RL(&rl
, "error receiving Ethernet packet on %s: %s",
611 ovs_strerror(errno
), netdev_rx_get_name(&rx
->up
));
619 netdev_bsd_rx_recv(struct netdev_rx
*rx_
, void *data
, size_t size
)
621 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
623 return (rx
->pcap_handle
624 ? netdev_rx_bsd_recv_pcap(rx
, data
, size
)
625 : netdev_rx_bsd_recv_tap(rx
, data
, size
));
629 * Registers with the poll loop to wake up from the next call to poll_block()
630 * when a packet is ready to be received with netdev_rx_recv() on 'rx'.
633 netdev_bsd_rx_wait(struct netdev_rx
*rx_
)
635 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
637 poll_fd_wait(rx
->fd
, POLLIN
);
640 /* Discards all packets waiting to be received from 'rx'. */
642 netdev_bsd_rx_drain(struct netdev_rx
*rx_
)
645 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
647 strcpy(ifr
.ifr_name
, netdev_get_kernel_name(netdev_rx_get_netdev(rx_
)));
648 if (ioctl(rx
->fd
, BIOCFLUSH
, &ifr
) == -1) {
649 VLOG_DBG_RL(&rl
, "%s: ioctl(BIOCFLUSH) failed: %s",
650 netdev_rx_get_name(rx_
), ovs_strerror(errno
));
657 * Send a packet on the specified network device. The device could be either a
658 * system or a tap device.
661 netdev_bsd_send(struct netdev
*netdev_
, const void *data
, size_t size
)
663 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
664 const char *name
= netdev_get_name(netdev_
);
667 ovs_mutex_lock(&dev
->mutex
);
668 if (dev
->tap_fd
< 0 && !dev
->pcap
) {
669 error
= netdev_bsd_open_pcap(name
, &dev
->pcap
, &dev
->fd
);
676 if (dev
->tap_fd
>= 0) {
677 retval
= write(dev
->tap_fd
, data
, size
);
679 retval
= pcap_inject(dev
->pcap
, data
, size
);
682 if (errno
== EINTR
) {
686 if (error
!= EAGAIN
) {
687 VLOG_WARN_RL(&rl
, "error sending Ethernet packet on %s: "
688 "%s", name
, ovs_strerror(error
));
691 } else if (retval
!= size
) {
692 VLOG_WARN_RL(&rl
, "sent partial Ethernet packet (%"PRIuSIZE
"d bytes of "
693 "%"PRIuSIZE
") on %s", retval
, size
, name
);
700 ovs_mutex_unlock(&dev
->mutex
);
705 * Registers with the poll loop to wake up from the next call to poll_block()
706 * when the packet transmission queue has sufficient room to transmit a packet
707 * with netdev_send().
710 netdev_bsd_send_wait(struct netdev
*netdev_
)
712 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
714 ovs_mutex_lock(&dev
->mutex
);
715 if (dev
->tap_fd
>= 0) {
716 /* TAP device always accepts packets. */
717 poll_immediate_wake();
718 } else if (dev
->pcap
) {
719 poll_fd_wait(dev
->fd
, POLLOUT
);
721 /* We haven't even tried to send a packet yet. */
722 poll_immediate_wake();
724 ovs_mutex_unlock(&dev
->mutex
);
728 * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful,
729 * otherwise a positive errno value.
732 netdev_bsd_set_etheraddr(struct netdev
*netdev_
,
733 const uint8_t mac
[ETH_ADDR_LEN
])
735 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
738 ovs_mutex_lock(&netdev
->mutex
);
739 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)
740 || !eth_addr_equals(netdev
->etheraddr
, mac
)) {
741 error
= set_etheraddr(netdev_get_kernel_name(netdev_
), AF_LINK
,
744 netdev
->cache_valid
|= VALID_ETHERADDR
;
745 memcpy(netdev
->etheraddr
, mac
, ETH_ADDR_LEN
);
746 seq_change(connectivity_seq_get());
749 ovs_mutex_unlock(&netdev
->mutex
);
755 * Returns a pointer to 'netdev''s MAC address. The caller must not modify or
756 * free the returned buffer.
759 netdev_bsd_get_etheraddr(const struct netdev
*netdev_
,
760 uint8_t mac
[ETH_ADDR_LEN
])
762 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
765 ovs_mutex_lock(&netdev
->mutex
);
766 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)) {
767 error
= get_etheraddr(netdev_get_kernel_name(netdev_
),
770 netdev
->cache_valid
|= VALID_ETHERADDR
;
774 memcpy(mac
, netdev
->etheraddr
, ETH_ADDR_LEN
);
776 ovs_mutex_unlock(&netdev
->mutex
);
782 * Returns the maximum size of transmitted (and received) packets on 'netdev',
783 * in bytes, not including the hardware header; thus, this is typically 1500
784 * bytes for Ethernet devices.
787 netdev_bsd_get_mtu(const struct netdev
*netdev_
, int *mtup
)
789 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
792 ovs_mutex_lock(&netdev
->mutex
);
793 if (!(netdev
->cache_valid
& VALID_MTU
)) {
796 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
797 SIOCGIFMTU
, "SIOCGIFMTU");
799 netdev
->mtu
= ifr
.ifr_mtu
;
800 netdev
->cache_valid
|= VALID_MTU
;
806 ovs_mutex_unlock(&netdev
->mutex
);
812 netdev_bsd_get_ifindex(const struct netdev
*netdev_
)
814 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
817 ovs_mutex_lock(&netdev
->mutex
);
818 error
= get_ifindex(netdev_
, &ifindex
);
819 ovs_mutex_unlock(&netdev
->mutex
);
821 return error
? -error
: ifindex
;
825 netdev_bsd_get_carrier(const struct netdev
*netdev_
, bool *carrier
)
827 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
830 ovs_mutex_lock(&netdev
->mutex
);
831 if (!(netdev
->cache_valid
& VALID_CARRIER
)) {
832 struct ifmediareq ifmr
;
834 memset(&ifmr
, 0, sizeof(ifmr
));
835 strncpy(ifmr
.ifm_name
, netdev_get_kernel_name(netdev_
),
836 sizeof ifmr
.ifm_name
);
838 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
840 netdev
->carrier
= (ifmr
.ifm_status
& IFM_ACTIVE
) == IFM_ACTIVE
;
841 netdev
->cache_valid
|= VALID_CARRIER
;
843 /* If the interface doesn't report whether the media is active,
844 * just assume it is active. */
845 if ((ifmr
.ifm_status
& IFM_AVALID
) == 0) {
846 netdev
->carrier
= true;
849 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
850 netdev_get_name(netdev_
), ovs_strerror(error
));
854 *carrier
= netdev
->carrier
;
856 ovs_mutex_unlock(&netdev
->mutex
);
862 convert_stats(struct netdev_stats
*stats
, const struct if_data
*ifd
)
865 * note: UINT64_MAX means unsupported
867 stats
->rx_packets
= ifd
->ifi_ipackets
;
868 stats
->tx_packets
= ifd
->ifi_opackets
;
869 stats
->rx_bytes
= ifd
->ifi_obytes
;
870 stats
->tx_bytes
= ifd
->ifi_ibytes
;
871 stats
->rx_errors
= ifd
->ifi_ierrors
;
872 stats
->tx_errors
= ifd
->ifi_oerrors
;
873 stats
->rx_dropped
= ifd
->ifi_iqdrops
;
874 stats
->tx_dropped
= UINT64_MAX
;
875 stats
->multicast
= ifd
->ifi_imcasts
;
876 stats
->collisions
= ifd
->ifi_collisions
;
877 stats
->rx_length_errors
= UINT64_MAX
;
878 stats
->rx_over_errors
= UINT64_MAX
;
879 stats
->rx_crc_errors
= UINT64_MAX
;
880 stats
->rx_frame_errors
= UINT64_MAX
;
881 stats
->rx_fifo_errors
= UINT64_MAX
;
882 stats
->rx_missed_errors
= UINT64_MAX
;
883 stats
->tx_aborted_errors
= UINT64_MAX
;
884 stats
->tx_carrier_errors
= UINT64_MAX
;
885 stats
->tx_fifo_errors
= UINT64_MAX
;
886 stats
->tx_heartbeat_errors
= UINT64_MAX
;
887 stats
->tx_window_errors
= UINT64_MAX
;
890 /* Retrieves current device stats for 'netdev'. */
892 netdev_bsd_get_stats(const struct netdev
*netdev_
, struct netdev_stats
*stats
)
894 #if defined(__FreeBSD__)
898 struct ifmibdata ifmd
;
903 mib
[2] = NETLINK_GENERIC
;
904 mib
[3] = IFMIB_SYSTEM
;
905 mib
[4] = IFMIB_IFCOUNT
;
907 len
= sizeof(if_count
);
909 if (sysctl(mib
, 5, &if_count
, &len
, (void *)0, 0) == -1) {
910 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
911 netdev_get_name(netdev_
), ovs_strerror(errno
));
915 mib
[5] = IFDATA_GENERAL
;
916 mib
[3] = IFMIB_IFDATA
;
918 for (i
= 1; i
<= if_count
; i
++) {
920 if (sysctl(mib
, 6, &ifmd
, &len
, (void *)0, 0) == -1) {
921 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
922 netdev_get_name(netdev_
), ovs_strerror(errno
));
924 } else if (!strcmp(ifmd
.ifmd_name
, netdev_get_name(netdev_
))) {
925 convert_stats(stats
, &ifmd
.ifmd_data
);
931 #elif defined(__NetBSD__)
932 struct ifdatareq ifdr
;
935 memset(&ifdr
, 0, sizeof(ifdr
));
936 strncpy(ifdr
.ifdr_name
, netdev_get_kernel_name(netdev_
),
937 sizeof(ifdr
.ifdr_name
));
938 error
= af_link_ioctl(SIOCGIFDATA
, &ifdr
);
940 convert_stats(stats
, &ifdr
.ifdr_data
);
944 #error not implemented
949 netdev_bsd_parse_media(int media
)
951 uint32_t supported
= 0;
952 bool half_duplex
= media
& IFM_HDX
? true : false;
954 switch (IFM_SUBTYPE(media
)) {
959 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
960 supported
|= NETDEV_F_COPPER
;
964 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
965 supported
|= NETDEV_F_FIBER
;
972 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
973 supported
|= NETDEV_F_COPPER
;
977 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
978 supported
|= NETDEV_F_FIBER
;
983 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
984 supported
|= NETDEV_F_COPPER
;
989 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
990 supported
|= NETDEV_F_FIBER
;
994 supported
|= NETDEV_F_10GB_FD
;
995 supported
|= NETDEV_F_COPPER
;
1000 supported
|= NETDEV_F_10GB_FD
;
1001 supported
|= NETDEV_F_FIBER
;
1008 if (IFM_SUBTYPE(media
) == IFM_AUTO
) {
1009 supported
|= NETDEV_F_AUTONEG
;
1012 if (media & IFM_ETH_FMASK) {
1013 supported |= NETDEV_F_PAUSE;
1021 * Stores the features supported by 'netdev' into each of '*current',
1022 * '*advertised', '*supported', and '*peer' that are non-null. Each value is a
1023 * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if
1024 * successful, otherwise a positive errno value. On failure, all of the
1025 * passed-in values are set to 0.
1028 netdev_bsd_get_features(const struct netdev
*netdev
,
1029 enum netdev_features
*current
, uint32_t *advertised
,
1030 enum netdev_features
*supported
, uint32_t *peer
)
1032 struct ifmediareq ifmr
;
1038 /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */
1040 memset(&ifmr
, 0, sizeof(ifmr
));
1041 strncpy(ifmr
.ifm_name
, netdev_get_name(netdev
), sizeof ifmr
.ifm_name
);
1043 /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the
1044 * number of supported modes, and a second with a buffer to retrieve
1046 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
1048 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1049 netdev_get_name(netdev
), ovs_strerror(error
));
1053 media_list
= xcalloc(ifmr
.ifm_count
, sizeof(int));
1054 ifmr
.ifm_ulist
= media_list
;
1056 if (IFM_TYPE(ifmr
.ifm_current
) != IFM_ETHER
) {
1057 VLOG_DBG_RL(&rl
, "%s: doesn't appear to be ethernet",
1058 netdev_get_name(netdev
));
1063 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
1065 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1066 netdev_get_name(netdev
), ovs_strerror(error
));
1070 /* Current settings. */
1071 *current
= netdev_bsd_parse_media(ifmr
.ifm_active
);
1073 /* Advertised features. */
1074 *advertised
= netdev_bsd_parse_media(ifmr
.ifm_current
);
1076 /* Supported features. */
1078 for (i
= 0; i
< ifmr
.ifm_count
; i
++) {
1079 *supported
|= netdev_bsd_parse_media(ifmr
.ifm_ulist
[i
]);
1082 /* Peer advertisements. */
1083 *peer
= 0; /* XXX */
1092 * If 'netdev' has an assigned IPv4 address, sets '*in4' to that address and
1093 * '*netmask' to its netmask and returns true. Otherwise, returns false.
1096 netdev_bsd_get_in4(const struct netdev
*netdev_
, struct in_addr
*in4
,
1097 struct in_addr
*netmask
)
1099 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1102 ovs_mutex_lock(&netdev
->mutex
);
1103 if (!(netdev
->cache_valid
& VALID_IN4
)) {
1106 ifr
.ifr_addr
.sa_family
= AF_INET
;
1107 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
1108 SIOCGIFADDR
, "SIOCGIFADDR");
1110 const struct sockaddr_in
*sin
;
1112 sin
= (struct sockaddr_in
*) &ifr
.ifr_addr
;
1113 netdev
->in4
= sin
->sin_addr
;
1114 netdev
->cache_valid
|= VALID_IN4
;
1115 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
1116 SIOCGIFNETMASK
, "SIOCGIFNETMASK");
1118 *netmask
= sin
->sin_addr
;
1124 *netmask
= netdev
->netmask
;
1126 ovs_mutex_unlock(&netdev
->mutex
);
1128 return error
? error
: in4
->s_addr
== INADDR_ANY
? EADDRNOTAVAIL
: 0;
1132 * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If
1133 * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a
1134 * positive errno value.
1137 netdev_bsd_set_in4(struct netdev
*netdev_
, struct in_addr addr
,
1138 struct in_addr mask
)
1140 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1143 ovs_mutex_lock(&netdev
->mutex
);
1144 error
= do_set_addr(netdev_
, SIOCSIFADDR
, "SIOCSIFADDR", addr
);
1146 if (addr
.s_addr
!= INADDR_ANY
) {
1147 error
= do_set_addr(netdev_
, SIOCSIFNETMASK
,
1148 "SIOCSIFNETMASK", mask
);
1150 netdev
->cache_valid
|= VALID_IN4
;
1152 netdev
->netmask
= mask
;
1155 seq_change(connectivity_seq_get());
1157 ovs_mutex_unlock(&netdev
->mutex
);
1163 netdev_bsd_get_in6(const struct netdev
*netdev_
, struct in6_addr
*in6
)
1165 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1166 if (!(netdev
->cache_valid
& VALID_IN6
)) {
1167 struct ifaddrs
*ifa
, *head
;
1168 struct sockaddr_in6
*sin6
;
1169 const char *netdev_name
= netdev_get_name(netdev_
);
1171 if (getifaddrs(&head
) != 0) {
1172 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1173 ovs_strerror(errno
));
1177 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1178 if (ifa
->ifa_addr
->sa_family
== AF_INET6
&&
1179 !strcmp(ifa
->ifa_name
, netdev_name
)) {
1180 sin6
= (struct sockaddr_in6
*)ifa
->ifa_addr
;
1182 memcpy(&netdev
->in6
, &sin6
->sin6_addr
, sin6
->sin6_len
);
1183 netdev
->cache_valid
|= VALID_IN6
;
1190 return EADDRNOTAVAIL
;
1196 #if defined(__NetBSD__)
1198 netdev_bsd_kernel_name_to_ovs_name(const char *kernel_name
)
1200 char *ovs_name
= NULL
;
1201 struct shash device_shash
;
1202 struct shash_node
*node
;
1204 shash_init(&device_shash
);
1205 netdev_get_devices(&netdev_tap_class
, &device_shash
);
1206 SHASH_FOR_EACH(node
, &device_shash
) {
1207 struct netdev
*netdev
= node
->data
;
1208 struct netdev_bsd
* const dev
= netdev_bsd_cast(netdev
);
1210 if (!strcmp(dev
->kernel_name
, kernel_name
)) {
1212 ovs_name
= xstrdup(netdev_get_name(&dev
->up
));
1214 netdev_close(netdev
);
1216 shash_destroy(&device_shash
);
1218 return ovs_name
? ovs_name
: xstrdup(kernel_name
);
1223 netdev_bsd_get_next_hop(const struct in_addr
*host OVS_UNUSED
,
1224 struct in_addr
*next_hop OVS_UNUSED
,
1225 char **netdev_name OVS_UNUSED
)
1227 #if defined(__NetBSD__)
1229 struct sockaddr_in sin
;
1230 struct sockaddr_dl sdl
;
1237 struct rt_msghdr
*rtm
= &buf
.h
;
1238 const pid_t pid
= getpid();
1241 bool gateway
= false;
1242 char *ifname
= NULL
;
1245 memset(next_hop
, 0, sizeof(*next_hop
));
1246 *netdev_name
= NULL
;
1248 memset(&sin
, 0, sizeof(sin
));
1249 sin
.sin_len
= sizeof(sin
);
1250 sin
.sin_family
= AF_INET
;
1252 sin
.sin_addr
= *host
;
1254 memset(&sdl
, 0, sizeof(sdl
));
1255 sdl
.sdl_len
= sizeof(sdl
);
1256 sdl
.sdl_family
= AF_LINK
;
1258 s
= socket(PF_ROUTE
, SOCK_RAW
, 0);
1259 memset(&buf
, 0, sizeof(buf
));
1260 rtm
->rtm_flags
= RTF_HOST
|RTF_UP
;
1261 rtm
->rtm_version
= RTM_VERSION
;
1262 rtm
->rtm_addrs
= RTA_DST
|RTA_IFP
;
1263 cp
= (void *)&buf
.space
;
1264 memcpy(cp
, &sin
, sizeof(sin
));
1265 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sin
);
1266 memcpy(cp
, &sdl
, sizeof(sdl
));
1267 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sdl
);
1268 rtm
->rtm_msglen
= cp
- (char *)(void *)rtm
;
1269 rtm
->rtm_seq
= ++seq
;
1270 rtm
->rtm_type
= RTM_GET
;
1272 write(s
, rtm
, rtm
->rtm_msglen
);
1273 memset(&buf
, 0, sizeof(buf
));
1275 ssz
= read(s
, &buf
, sizeof(buf
));
1276 } while (ssz
> 0 && (rtm
->rtm_seq
!= seq
|| rtm
->rtm_pid
!= pid
));
1277 saved_errno
= errno
;
1283 return EPIPE
; /* XXX */
1285 cp
= (void *)&buf
.space
;
1286 for (i
= 1; i
; i
<<= 1) {
1287 if ((rtm
->rtm_addrs
& i
) != 0) {
1288 const struct sockaddr
*sa
= (const void *)cp
;
1290 if ((i
== RTA_GATEWAY
) && sa
->sa_family
== AF_INET
) {
1291 const struct sockaddr_in
* const sin
=
1292 (const struct sockaddr_in
*)sa
;
1294 *next_hop
= sin
->sin_addr
;
1297 if ((i
== RTA_IFP
) && sa
->sa_family
== AF_LINK
) {
1298 const struct sockaddr_dl
* const sdl
=
1299 (const struct sockaddr_dl
*)sa
;
1302 kernel_name
= xmemdup0(sdl
->sdl_data
, sdl
->sdl_nlen
);
1303 ifname
= netdev_bsd_kernel_name_to_ovs_name(kernel_name
);
1309 if (ifname
== NULL
) {
1315 *netdev_name
= ifname
;
1316 VLOG_DBG("host " IP_FMT
" next-hop " IP_FMT
" if %s",
1317 IP_ARGS(host
->s_addr
), IP_ARGS(next_hop
->s_addr
), *netdev_name
);
1325 netdev_bsd_arp_lookup(const struct netdev
*netdev OVS_UNUSED
,
1326 ovs_be32 ip OVS_UNUSED
,
1327 uint8_t mac
[ETH_ADDR_LEN
] OVS_UNUSED
)
1329 #if defined(__NetBSD__)
1330 const struct rt_msghdr
*rtm
;
1343 mib
[4] = NET_RT_FLAGS
;
1344 mib
[5] = RTF_LLINFO
;
1345 if (sysctl(mib
, 6, NULL
, &needed
, NULL
, 0) == -1) {
1349 buf
= xmalloc(needed
);
1350 if (sysctl(mib
, 6, buf
, &needed
, NULL
, 0) == -1) {
1355 for (cp
= buf
; cp
< ep
; cp
+= rtm
->rtm_msglen
) {
1356 const struct sockaddr_inarp
*sina
;
1357 const struct sockaddr_dl
*sdl
;
1359 rtm
= (const void *)cp
;
1360 sina
= (const void *)(rtm
+ 1);
1361 if (ip
!= sina
->sin_addr
.s_addr
) {
1364 sdl
= (const void *)
1365 ((const char *)(const void *)sina
+ RT_ROUNDUP(sina
->sin_len
));
1366 if (sdl
->sdl_alen
== ETH_ADDR_LEN
) {
1367 memcpy(mac
, &sdl
->sdl_data
[sdl
->sdl_nlen
], ETH_ADDR_LEN
);
1382 make_in4_sockaddr(struct sockaddr
*sa
, struct in_addr addr
)
1384 struct sockaddr_in sin
;
1385 memset(&sin
, 0, sizeof sin
);
1386 sin
.sin_family
= AF_INET
;
1387 sin
.sin_addr
= addr
;
1390 memset(sa
, 0, sizeof *sa
);
1391 memcpy(sa
, &sin
, sizeof sin
);
1395 do_set_addr(struct netdev
*netdev
,
1396 unsigned long ioctl_nr
, const char *ioctl_name
,
1397 struct in_addr addr
)
1400 make_in4_sockaddr(&ifr
.ifr_addr
, addr
);
1401 return af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev
), &ifr
, ioctl_nr
,
1406 nd_to_iff_flags(enum netdev_flags nd
)
1409 if (nd
& NETDEV_UP
) {
1412 if (nd
& NETDEV_PROMISC
) {
1414 #if defined(IFF_PPROMISC)
1415 iff
|= IFF_PPROMISC
;
1418 if (nd
& NETDEV_LOOPBACK
) {
1419 iff
|= IFF_LOOPBACK
;
1425 iff_to_nd_flags(int iff
)
1427 enum netdev_flags nd
= 0;
1431 if (iff
& IFF_PROMISC
) {
1432 nd
|= NETDEV_PROMISC
;
1434 if (iff
& IFF_LOOPBACK
) {
1435 nd
|= NETDEV_LOOPBACK
;
1441 netdev_bsd_update_flags(struct netdev
*netdev_
, enum netdev_flags off
,
1442 enum netdev_flags on
, enum netdev_flags
*old_flagsp
)
1444 int old_flags
, new_flags
;
1447 error
= get_flags(netdev_
, &old_flags
);
1449 *old_flagsp
= iff_to_nd_flags(old_flags
);
1450 new_flags
= (old_flags
& ~nd_to_iff_flags(off
)) | nd_to_iff_flags(on
);
1451 if (new_flags
!= old_flags
) {
1452 error
= set_flags(netdev_get_kernel_name(netdev_
), new_flags
);
1453 seq_change(connectivity_seq_get());
1460 const struct netdev_class netdev_bsd_class
= {
1467 netdev_bsd_construct_system
,
1468 netdev_bsd_destruct
,
1470 NULL
, /* get_config */
1471 NULL
, /* set_config */
1472 NULL
, /* get_tunnel_config */
1475 netdev_bsd_send_wait
,
1477 netdev_bsd_set_etheraddr
,
1478 netdev_bsd_get_etheraddr
,
1481 netdev_bsd_get_ifindex
,
1482 netdev_bsd_get_carrier
,
1483 NULL
, /* get_carrier_resets */
1484 NULL
, /* set_miimon_interval */
1485 netdev_bsd_get_stats
,
1486 NULL
, /* set_stats */
1488 netdev_bsd_get_features
,
1489 NULL
, /* set_advertisement */
1490 NULL
, /* set_policing */
1491 NULL
, /* get_qos_type */
1492 NULL
, /* get_qos_capabilities */
1495 NULL
, /* get_queue */
1496 NULL
, /* set_queue */
1497 NULL
, /* delete_queue */
1498 NULL
, /* get_queue_stats */
1499 NULL
, /* queue_dump_start */
1500 NULL
, /* queue_dump_next */
1501 NULL
, /* queue_dump_done */
1502 NULL
, /* dump_queue_stats */
1507 NULL
, /* add_router */
1508 netdev_bsd_get_next_hop
,
1509 NULL
, /* get_status */
1510 netdev_bsd_arp_lookup
, /* arp_lookup */
1512 netdev_bsd_update_flags
,
1514 netdev_bsd_rx_alloc
,
1515 netdev_bsd_rx_construct
,
1516 netdev_bsd_rx_destruct
,
1517 netdev_bsd_rx_dealloc
,
1520 netdev_bsd_rx_drain
,
1523 const struct netdev_class netdev_tap_class
= {
1530 netdev_bsd_construct_tap
,
1531 netdev_bsd_destruct
,
1533 NULL
, /* get_config */
1534 NULL
, /* set_config */
1535 NULL
, /* get_tunnel_config */
1538 netdev_bsd_send_wait
,
1540 netdev_bsd_set_etheraddr
,
1541 netdev_bsd_get_etheraddr
,
1544 netdev_bsd_get_ifindex
,
1545 netdev_bsd_get_carrier
,
1546 NULL
, /* get_carrier_resets */
1547 NULL
, /* set_miimon_interval */
1548 netdev_bsd_get_stats
,
1549 NULL
, /* set_stats */
1551 netdev_bsd_get_features
,
1552 NULL
, /* set_advertisement */
1553 NULL
, /* set_policing */
1554 NULL
, /* get_qos_type */
1555 NULL
, /* get_qos_capabilities */
1558 NULL
, /* get_queue */
1559 NULL
, /* set_queue */
1560 NULL
, /* delete_queue */
1561 NULL
, /* get_queue_stats */
1562 NULL
, /* queue_dump_start */
1563 NULL
, /* queue_dump_next */
1564 NULL
, /* queue_dump_done */
1565 NULL
, /* dump_queue_stats */
1570 NULL
, /* add_router */
1571 netdev_bsd_get_next_hop
,
1572 NULL
, /* get_status */
1573 netdev_bsd_arp_lookup
, /* arp_lookup */
1575 netdev_bsd_update_flags
,
1577 netdev_bsd_rx_alloc
,
1578 netdev_bsd_rx_construct
,
1579 netdev_bsd_rx_destruct
,
1580 netdev_bsd_rx_dealloc
,
1583 netdev_bsd_rx_drain
,
1588 destroy_tap(int fd
, const char *name
)
1593 strcpy(ifr
.ifr_name
, name
);
1594 /* XXX What to do if this call fails? */
1595 af_inet_ioctl(SIOCIFDESTROY
, &ifr
);
1599 get_flags(const struct netdev
*netdev
, int *flags
)
1604 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev
), &ifr
,
1605 SIOCGIFFLAGS
, "SIOCGIFFLAGS");
1607 *flags
= ifr_get_flags(&ifr
);
1613 set_flags(const char *name
, int flags
)
1617 ifr_set_flags(&ifr
, flags
);
1619 return af_inet_ifreq_ioctl(name
, &ifr
, SIOCSIFFLAGS
, "SIOCSIFFLAGS");
1623 get_ifindex(const struct netdev
*netdev_
, int *ifindexp
)
1625 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1627 if (!(netdev
->cache_valid
& VALID_IFINDEX
)) {
1628 int ifindex
= if_nametoindex(netdev_get_name(netdev_
));
1632 netdev
->cache_valid
|= VALID_IFINDEX
;
1633 netdev
->ifindex
= ifindex
;
1635 *ifindexp
= netdev
->ifindex
;
1640 get_etheraddr(const char *netdev_name
, uint8_t ea
[ETH_ADDR_LEN
])
1642 struct ifaddrs
*head
;
1643 struct ifaddrs
*ifa
;
1644 struct sockaddr_dl
*sdl
;
1646 if (getifaddrs(&head
) != 0) {
1647 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1648 ovs_strerror(errno
));
1652 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1653 if (ifa
->ifa_addr
->sa_family
== AF_LINK
) {
1654 if (!strcmp(ifa
->ifa_name
, netdev_name
)) {
1655 sdl
= (struct sockaddr_dl
*)ifa
->ifa_addr
;
1657 memcpy(ea
, LLADDR(sdl
), sdl
->sdl_alen
);
1665 VLOG_ERR("could not find ethernet address for %s device", netdev_name
);
1671 set_etheraddr(const char *netdev_name OVS_UNUSED
, int hwaddr_family OVS_UNUSED
,
1672 int hwaddr_len OVS_UNUSED
,
1673 const uint8_t mac
[ETH_ADDR_LEN
] OVS_UNUSED
)
1675 #if defined(__FreeBSD__)
1679 memset(&ifr
, 0, sizeof ifr
);
1680 strncpy(ifr
.ifr_name
, netdev_name
, sizeof ifr
.ifr_name
);
1681 ifr
.ifr_addr
.sa_family
= hwaddr_family
;
1682 ifr
.ifr_addr
.sa_len
= hwaddr_len
;
1683 memcpy(ifr
.ifr_addr
.sa_data
, mac
, hwaddr_len
);
1684 error
= af_inet_ioctl(SIOCSIFLLADDR
, &ifr
);
1686 VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s",
1687 netdev_name
, ovs_strerror(error
));
1691 #elif defined(__NetBSD__)
1692 struct if_laddrreq req
;
1693 struct sockaddr_dl
*sdl
;
1694 struct sockaddr_storage oldaddr
;
1698 * get the old address, add new one, and then remove old one.
1701 if (hwaddr_len
!= ETH_ADDR_LEN
) {
1702 /* just to be safe about sockaddr storage size */
1705 memset(&req
, 0, sizeof(req
));
1706 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1707 req
.addr
.ss_len
= sizeof(req
.addr
);
1708 req
.addr
.ss_family
= hwaddr_family
;
1709 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1710 sdl
->sdl_alen
= hwaddr_len
;
1712 error
= af_link_ioctl(SIOCGLIFADDR
, &req
);
1716 if (!memcmp(&sdl
->sdl_data
[sdl
->sdl_nlen
], mac
, hwaddr_len
)) {
1721 memset(&req
, 0, sizeof(req
));
1722 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1723 req
.flags
= IFLR_ACTIVE
;
1724 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1725 sdl
->sdl_len
= offsetof(struct sockaddr_dl
, sdl_data
) + hwaddr_len
;
1726 sdl
->sdl_alen
= hwaddr_len
;
1727 sdl
->sdl_family
= hwaddr_family
;
1728 memcpy(sdl
->sdl_data
, mac
, hwaddr_len
);
1729 error
= af_link_ioctl(SIOCALIFADDR
, &req
);
1734 memset(&req
, 0, sizeof(req
));
1735 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1737 return af_link_ioctl(SIOCDLIFADDR
, &req
);
1739 #error not implemented
1744 ifr_get_flags(const struct ifreq
*ifr
)
1746 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1747 return (ifr
->ifr_flagshigh
<< 16) | ifr
->ifr_flags
;
1749 return ifr
->ifr_flags
;
1754 ifr_set_flags(struct ifreq
*ifr
, int flags
)
1756 ifr
->ifr_flags
= flags
;
1757 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1758 ifr
->ifr_flagshigh
= flags
>> 16;
1762 /* Calls ioctl() on an AF_LINK sock, passing the specified 'command' and
1763 * 'arg'. Returns 0 if successful, otherwise a positive errno value. */
1765 af_link_ioctl(unsigned long command
, const void *arg
)
1767 static struct ovsthread_once once
= OVSTHREAD_ONCE_INITIALIZER
;
1770 if (ovsthread_once_start(&once
)) {
1771 sock
= socket(AF_LINK
, SOCK_DGRAM
, 0);
1774 VLOG_ERR("failed to create link socket: %s", ovs_strerror(errno
));
1776 ovsthread_once_done(&once
);
1779 return (sock
< 0 ? -sock
1780 : ioctl(sock
, command
, arg
) == -1 ? errno