2 * Copyright (c) 2011, 2013 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"
58 #include "poll-loop.h"
60 #include "socket-util.h"
65 VLOG_DEFINE_THIS_MODULE(netdev_bsd
);
68 struct netdev_rxq_bsd
{
71 /* Packet capture descriptor for a system network device.
72 * For a tap device this is NULL. */
75 /* Selectable file descriptor for the network device.
76 * This descriptor will be used for polling operations. */
83 /* Never changes after initialization. */
86 /* Protects all members below. */
87 struct ovs_mutex mutex
;
89 unsigned int cache_valid
;
92 uint8_t etheraddr
[ETH_ADDR_LEN
];
94 struct in_addr netmask
;
99 int tap_fd
; /* TAP character device, if any, otherwise -1. */
101 /* Used for sending packets on non-tap devices. */
108 VALID_IFINDEX
= 1 << 0,
109 VALID_ETHERADDR
= 1 << 1,
113 VALID_CARRIER
= 1 << 5
116 #define PCAP_SNAPLEN 2048
120 * Notifier used to invalidate device informations in case of status change.
122 * It will be registered with a 'rtbsd_notifier_register()' when the first
123 * device will be created with the call of either 'netdev_bsd_tap_create()' or
124 * 'netdev_bsd_system_create()'.
126 * The callback associated with this notifier ('netdev_bsd_cache_cb()') will
127 * invalidate cached information about the device.
129 static struct rtbsd_notifier netdev_bsd_cache_notifier
;
130 static int cache_notifier_refcount
;
132 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(5, 20);
134 static void destroy_tap(int fd
, const char *name
);
135 static int get_flags(const struct netdev
*, int *flagsp
);
136 static int set_flags(const char *, int flags
);
137 static int do_set_addr(struct netdev
*netdev
,
138 unsigned long ioctl_nr
, const char *ioctl_name
,
139 struct in_addr addr
);
140 static int get_etheraddr(const char *netdev_name
, uint8_t ea
[ETH_ADDR_LEN
]);
141 static int set_etheraddr(const char *netdev_name
, int hwaddr_family
,
142 int hwaddr_len
, const uint8_t[ETH_ADDR_LEN
]);
143 static int get_ifindex(const struct netdev
*, int *ifindexp
);
145 static int ifr_get_flags(const struct ifreq
*);
146 static void ifr_set_flags(struct ifreq
*, int flags
);
149 static int af_link_ioctl(unsigned long command
, const void *arg
);
152 static void netdev_bsd_run(void);
153 static int netdev_bsd_get_mtu(const struct netdev
*netdev_
, int *mtup
);
156 is_netdev_bsd_class(const struct netdev_class
*netdev_class
)
158 return netdev_class
->run
== netdev_bsd_run
;
161 static struct netdev_bsd
*
162 netdev_bsd_cast(const struct netdev
*netdev
)
164 ovs_assert(is_netdev_bsd_class(netdev_get_class(netdev
)));
165 return CONTAINER_OF(netdev
, struct netdev_bsd
, up
);
168 static struct netdev_rxq_bsd
*
169 netdev_rxq_bsd_cast(const struct netdev_rxq
*rxq
)
171 ovs_assert(is_netdev_bsd_class(netdev_get_class(rxq
->netdev
)));
172 return CONTAINER_OF(rxq
, struct netdev_rxq_bsd
, up
);
176 netdev_get_kernel_name(const struct netdev
*netdev
)
178 return netdev_bsd_cast(netdev
)->kernel_name
;
182 * Perform periodic work needed by netdev. In BSD netdevs it checks for any
183 * interface status changes, and eventually calls all the user callbacks.
188 rtbsd_notifier_run();
192 * Arranges for poll_block() to wake up if the "run" member function needs to
196 netdev_bsd_wait(void)
198 rtbsd_notifier_wait();
201 /* Invalidate cache in case of interface status change. */
203 netdev_bsd_cache_cb(const struct rtbsd_change
*change
,
204 void *aux OVS_UNUSED
)
206 struct netdev_bsd
*dev
;
209 struct netdev
*base_dev
= netdev_from_name(change
->if_name
);
212 const struct netdev_class
*netdev_class
=
213 netdev_get_class(base_dev
);
215 if (is_netdev_bsd_class(netdev_class
)) {
216 dev
= netdev_bsd_cast(base_dev
);
217 dev
->cache_valid
= 0;
218 netdev_change_seq_changed(base_dev
);
220 netdev_close(base_dev
);
224 * XXX the API is lacking, we should be able to iterate on the list of
225 * netdevs without having to store the info in a temp shash.
227 struct shash device_shash
;
228 struct shash_node
*node
;
230 shash_init(&device_shash
);
231 netdev_get_devices(&netdev_bsd_class
, &device_shash
);
232 SHASH_FOR_EACH (node
, &device_shash
) {
233 struct netdev
*netdev
= node
->data
;
234 dev
= netdev_bsd_cast(netdev
);
235 dev
->cache_valid
= 0;
236 netdev_change_seq_changed(netdev
);
237 netdev_close(netdev
);
239 shash_destroy(&device_shash
);
244 cache_notifier_ref(void)
248 if (!cache_notifier_refcount
) {
249 ret
= rtbsd_notifier_register(&netdev_bsd_cache_notifier
,
250 netdev_bsd_cache_cb
, NULL
);
255 cache_notifier_refcount
++;
260 cache_notifier_unref(void)
262 cache_notifier_refcount
--;
263 if (cache_notifier_refcount
== 0) {
264 rtbsd_notifier_unregister(&netdev_bsd_cache_notifier
);
269 static struct netdev
*
270 netdev_bsd_alloc(void)
272 struct netdev_bsd
*netdev
= xzalloc(sizeof *netdev
);
277 netdev_bsd_construct_system(struct netdev
*netdev_
)
279 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
280 enum netdev_flags flags
;
283 error
= cache_notifier_ref();
288 ovs_mutex_init(&netdev
->mutex
);
290 netdev
->kernel_name
= xstrdup(netdev_
->name
);
292 /* Verify that the netdev really exists by attempting to read its flags */
293 error
= netdev_get_flags(netdev_
, &flags
);
294 if (error
== ENXIO
) {
295 free(netdev
->kernel_name
);
296 cache_notifier_unref();
304 netdev_bsd_construct_tap(struct netdev
*netdev_
)
306 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
307 const char *name
= netdev_
->name
;
310 char *kernel_name
= NULL
;
312 error
= cache_notifier_ref();
317 memset(&ifr
, 0, sizeof(ifr
));
319 /* Create a tap device by opening /dev/tap. The TAPGIFNAME ioctl is used
320 * to retrieve the name of the tap device. */
321 ovs_mutex_init(&netdev
->mutex
);
322 netdev
->tap_fd
= open("/dev/tap", O_RDWR
);
323 if (netdev
->tap_fd
< 0) {
325 VLOG_WARN("opening \"/dev/tap\" failed: %s", ovs_strerror(error
));
326 goto error_unref_notifier
;
329 /* Retrieve tap name (e.g. tap0) */
330 if (ioctl(netdev
->tap_fd
, TAPGIFNAME
, &ifr
) == -1) {
331 /* XXX Need to destroy the device? */
333 close(netdev
->tap_fd
);
334 goto error_unref_notifier
;
337 /* Change the name of the tap device */
338 #if defined(SIOCSIFNAME)
339 ifr
.ifr_data
= (void *)name
;
340 error
= af_inet_ioctl(SIOCSIFNAME
, &ifr
);
342 destroy_tap(netdev
->tap_fd
, ifr
.ifr_name
);
343 goto error_unref_notifier
;
345 kernel_name
= xstrdup(name
);
348 * NetBSD doesn't support inteface renaming.
350 VLOG_INFO("tap %s is created for bridge %s", ifr
.ifr_name
, name
);
351 kernel_name
= xstrdup(ifr
.ifr_name
);
354 /* set non-blocking. */
355 error
= set_nonblocking(netdev
->tap_fd
);
357 destroy_tap(netdev
->tap_fd
, kernel_name
);
358 goto error_unref_notifier
;
362 ifr_set_flags(&ifr
, IFF_UP
);
363 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_rxq
*
477 netdev_bsd_rxq_alloc(void)
479 struct netdev_rxq_bsd
*rxq
= xzalloc(sizeof *rxq
);
484 netdev_bsd_rxq_construct(struct netdev_rxq
*rxq_
)
486 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
487 struct netdev
*netdev_
= rxq
->up
.netdev
;
488 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
491 if (!strcmp(netdev_get_type(netdev_
), "tap")) {
492 rxq
->pcap_handle
= NULL
;
493 rxq
->fd
= netdev
->tap_fd
;
496 ovs_mutex_lock(&netdev
->mutex
);
497 error
= netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_
),
498 &rxq
->pcap_handle
, &rxq
->fd
);
499 ovs_mutex_unlock(&netdev
->mutex
);
506 netdev_bsd_rxq_destruct(struct netdev_rxq
*rxq_
)
508 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
510 if (rxq
->pcap_handle
) {
511 pcap_close(rxq
->pcap_handle
);
516 netdev_bsd_rxq_dealloc(struct netdev_rxq
*rxq_
)
518 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
523 /* The recv callback of the netdev class returns the number of bytes of the
526 * This can be done by the pcap_next() function. Unfortunately pcap_next() does
527 * not make difference between a missing packet on the capture interface and
528 * an error during the file capture. We can use the pcap_dispatch() function
529 * instead, which is able to distinguish between errors and null packet.
531 * To make pcap_dispatch() returns the number of bytes read from the interface
532 * we need to define the following callback and argument.
541 * This callback will be executed on every captured packet.
543 * If the packet captured by pcap_dispatch() does not fit the pcap buffer,
544 * pcap returns a truncated packet and we follow this behavior.
546 * The argument args->retval is the packet size in bytes.
549 proc_pkt(u_char
*args_
, const struct pcap_pkthdr
*hdr
, const u_char
*packet
)
551 struct pcap_arg
*args
= ALIGNED_CAST(struct pcap_arg
*, args_
);
553 if (args
->size
< hdr
->len
) {
554 VLOG_WARN_RL(&rl
, "packet truncated");
555 args
->retval
= args
->size
;
557 args
->retval
= hdr
->len
;
560 /* copy the packet to our buffer */
561 memcpy(args
->data
, packet
, args
->retval
);
565 * This function attempts to receive a packet from the specified network
566 * device. It is assumed that the network device is a system device or a tap
567 * device opened as a system one. In this case the read operation is performed
571 netdev_rxq_bsd_recv_pcap(struct netdev_rxq_bsd
*rxq
, struct ofpbuf
*buffer
)
576 /* prepare the pcap argument to store the packet */
577 arg
.size
= ofpbuf_tailroom(buffer
);
578 arg
.data
= ofpbuf_data(buffer
);
581 ret
= pcap_dispatch(rxq
->pcap_handle
, 1, proc_pkt
, (u_char
*) &arg
);
584 ofpbuf_set_size(buffer
, ofpbuf_size(buffer
) + arg
.retval
);
588 if (errno
== EINTR
) {
598 * This function attempts to receive a packet from the specified network
599 * device. It is assumed that the network device is a tap device and
600 * 'rxq->fd' is initialized with the tap file descriptor.
603 netdev_rxq_bsd_recv_tap(struct netdev_rxq_bsd
*rxq
, struct ofpbuf
*buffer
)
605 size_t size
= ofpbuf_tailroom(buffer
);
608 ssize_t retval
= read(rxq
->fd
, ofpbuf_data(buffer
), size
);
610 ofpbuf_set_size(buffer
, ofpbuf_size(buffer
) + retval
);
612 } else if (errno
!= EINTR
) {
613 if (errno
!= EAGAIN
) {
614 VLOG_WARN_RL(&rl
, "error receiving Ethernet packet on %s: %s",
615 ovs_strerror(errno
), netdev_rxq_get_name(&rxq
->up
));
623 netdev_bsd_rxq_recv(struct netdev_rxq
*rxq_
, struct ofpbuf
**packet
, int *c
)
625 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
626 struct netdev
*netdev
= rxq
->up
.netdev
;
627 struct ofpbuf
*buffer
;
631 if (netdev_bsd_get_mtu(netdev
, &mtu
)) {
632 mtu
= ETH_PAYLOAD_MAX
;
635 buffer
= ofpbuf_new_with_headroom(VLAN_ETH_HEADER_LEN
+ mtu
, DP_NETDEV_HEADROOM
);
637 retval
= (rxq
->pcap_handle
638 ? netdev_rxq_bsd_recv_pcap(rxq
, buffer
)
639 : netdev_rxq_bsd_recv_tap(rxq
, buffer
));
642 ofpbuf_delete(buffer
);
644 dp_packet_pad(buffer
);
652 * Registers with the poll loop to wake up from the next call to poll_block()
653 * when a packet is ready to be received with netdev_rxq_recv() on 'rxq'.
656 netdev_bsd_rxq_wait(struct netdev_rxq
*rxq_
)
658 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
660 poll_fd_wait(rxq
->fd
, POLLIN
);
663 /* Discards all packets waiting to be received from 'rxq'. */
665 netdev_bsd_rxq_drain(struct netdev_rxq
*rxq_
)
668 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
670 strcpy(ifr
.ifr_name
, netdev_get_kernel_name(netdev_rxq_get_netdev(rxq_
)));
671 if (ioctl(rxq
->fd
, BIOCFLUSH
, &ifr
) == -1) {
672 VLOG_DBG_RL(&rl
, "%s: ioctl(BIOCFLUSH) failed: %s",
673 netdev_rxq_get_name(rxq_
), ovs_strerror(errno
));
680 * Send a packet on the specified network device. The device could be either a
681 * system or a tap device.
684 netdev_bsd_send(struct netdev
*netdev_
, struct ofpbuf
*pkt
, bool may_steal
)
686 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
687 const char *name
= netdev_get_name(netdev_
);
688 const void *data
= ofpbuf_data(pkt
);
689 size_t size
= ofpbuf_size(pkt
);
692 ovs_mutex_lock(&dev
->mutex
);
693 if (dev
->tap_fd
< 0 && !dev
->pcap
) {
694 error
= netdev_bsd_open_pcap(name
, &dev
->pcap
, &dev
->fd
);
701 if (dev
->tap_fd
>= 0) {
702 retval
= write(dev
->tap_fd
, data
, size
);
704 retval
= pcap_inject(dev
->pcap
, data
, size
);
707 if (errno
== EINTR
) {
711 if (error
!= EAGAIN
) {
712 VLOG_WARN_RL(&rl
, "error sending Ethernet packet on %s: "
713 "%s", name
, ovs_strerror(error
));
716 } else if (retval
!= size
) {
717 VLOG_WARN_RL(&rl
, "sent partial Ethernet packet (%"PRIuSIZE
"d bytes of "
718 "%"PRIuSIZE
") on %s", retval
, size
, name
);
725 ovs_mutex_unlock(&dev
->mutex
);
734 * Registers with the poll loop to wake up from the next call to poll_block()
735 * when the packet transmission queue has sufficient room to transmit a packet
736 * with netdev_send().
739 netdev_bsd_send_wait(struct netdev
*netdev_
)
741 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
743 ovs_mutex_lock(&dev
->mutex
);
744 if (dev
->tap_fd
>= 0) {
745 /* TAP device always accepts packets. */
746 poll_immediate_wake();
747 } else if (dev
->pcap
) {
748 poll_fd_wait(dev
->fd
, POLLOUT
);
750 /* We haven't even tried to send a packet yet. */
751 poll_immediate_wake();
753 ovs_mutex_unlock(&dev
->mutex
);
757 * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful,
758 * otherwise a positive errno value.
761 netdev_bsd_set_etheraddr(struct netdev
*netdev_
,
762 const uint8_t mac
[ETH_ADDR_LEN
])
764 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
767 ovs_mutex_lock(&netdev
->mutex
);
768 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)
769 || !eth_addr_equals(netdev
->etheraddr
, mac
)) {
770 error
= set_etheraddr(netdev_get_kernel_name(netdev_
), AF_LINK
,
773 netdev
->cache_valid
|= VALID_ETHERADDR
;
774 memcpy(netdev
->etheraddr
, mac
, ETH_ADDR_LEN
);
775 netdev_change_seq_changed(netdev_
);
778 ovs_mutex_unlock(&netdev
->mutex
);
784 * Returns a pointer to 'netdev''s MAC address. The caller must not modify or
785 * free the returned buffer.
788 netdev_bsd_get_etheraddr(const struct netdev
*netdev_
,
789 uint8_t mac
[ETH_ADDR_LEN
])
791 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
794 ovs_mutex_lock(&netdev
->mutex
);
795 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)) {
796 error
= get_etheraddr(netdev_get_kernel_name(netdev_
),
799 netdev
->cache_valid
|= VALID_ETHERADDR
;
803 memcpy(mac
, netdev
->etheraddr
, ETH_ADDR_LEN
);
805 ovs_mutex_unlock(&netdev
->mutex
);
811 * Returns the maximum size of transmitted (and received) packets on 'netdev',
812 * in bytes, not including the hardware header; thus, this is typically 1500
813 * bytes for Ethernet devices.
816 netdev_bsd_get_mtu(const struct netdev
*netdev_
, int *mtup
)
818 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
821 ovs_mutex_lock(&netdev
->mutex
);
822 if (!(netdev
->cache_valid
& VALID_MTU
)) {
825 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
826 SIOCGIFMTU
, "SIOCGIFMTU");
828 netdev
->mtu
= ifr
.ifr_mtu
;
829 netdev
->cache_valid
|= VALID_MTU
;
835 ovs_mutex_unlock(&netdev
->mutex
);
841 netdev_bsd_get_ifindex(const struct netdev
*netdev_
)
843 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
846 ovs_mutex_lock(&netdev
->mutex
);
847 error
= get_ifindex(netdev_
, &ifindex
);
848 ovs_mutex_unlock(&netdev
->mutex
);
850 return error
? -error
: ifindex
;
854 netdev_bsd_get_carrier(const struct netdev
*netdev_
, bool *carrier
)
856 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
859 ovs_mutex_lock(&netdev
->mutex
);
860 if (!(netdev
->cache_valid
& VALID_CARRIER
)) {
861 struct ifmediareq ifmr
;
863 memset(&ifmr
, 0, sizeof(ifmr
));
864 strncpy(ifmr
.ifm_name
, netdev_get_kernel_name(netdev_
),
865 sizeof ifmr
.ifm_name
);
867 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
869 netdev
->carrier
= (ifmr
.ifm_status
& IFM_ACTIVE
) == IFM_ACTIVE
;
870 netdev
->cache_valid
|= VALID_CARRIER
;
872 /* If the interface doesn't report whether the media is active,
873 * just assume it is active. */
874 if ((ifmr
.ifm_status
& IFM_AVALID
) == 0) {
875 netdev
->carrier
= true;
878 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
879 netdev_get_name(netdev_
), ovs_strerror(error
));
883 *carrier
= netdev
->carrier
;
885 ovs_mutex_unlock(&netdev
->mutex
);
891 convert_stats_system(struct netdev_stats
*stats
, const struct if_data
*ifd
)
894 * note: UINT64_MAX means unsupported
896 stats
->rx_packets
= ifd
->ifi_ipackets
;
897 stats
->tx_packets
= ifd
->ifi_opackets
;
898 stats
->rx_bytes
= ifd
->ifi_obytes
;
899 stats
->tx_bytes
= ifd
->ifi_ibytes
;
900 stats
->rx_errors
= ifd
->ifi_ierrors
;
901 stats
->tx_errors
= ifd
->ifi_oerrors
;
902 stats
->rx_dropped
= ifd
->ifi_iqdrops
;
903 stats
->tx_dropped
= UINT64_MAX
;
904 stats
->multicast
= ifd
->ifi_imcasts
;
905 stats
->collisions
= ifd
->ifi_collisions
;
906 stats
->rx_length_errors
= UINT64_MAX
;
907 stats
->rx_over_errors
= UINT64_MAX
;
908 stats
->rx_crc_errors
= UINT64_MAX
;
909 stats
->rx_frame_errors
= UINT64_MAX
;
910 stats
->rx_fifo_errors
= UINT64_MAX
;
911 stats
->rx_missed_errors
= UINT64_MAX
;
912 stats
->tx_aborted_errors
= UINT64_MAX
;
913 stats
->tx_carrier_errors
= UINT64_MAX
;
914 stats
->tx_fifo_errors
= UINT64_MAX
;
915 stats
->tx_heartbeat_errors
= UINT64_MAX
;
916 stats
->tx_window_errors
= UINT64_MAX
;
920 convert_stats_tap(struct netdev_stats
*stats
, const struct if_data
*ifd
)
923 * Similar to convert_stats_system but swapping rxq and tx
924 * because 'ifd' is stats for the network interface side of the
925 * tap device and what the caller wants is one for the character
928 * note: UINT64_MAX means unsupported
930 stats
->rx_packets
= ifd
->ifi_opackets
;
931 stats
->tx_packets
= ifd
->ifi_ipackets
;
932 stats
->rx_bytes
= ifd
->ifi_ibytes
;
933 stats
->tx_bytes
= ifd
->ifi_obytes
;
934 stats
->rx_errors
= ifd
->ifi_oerrors
;
935 stats
->tx_errors
= ifd
->ifi_ierrors
;
936 stats
->rx_dropped
= UINT64_MAX
;
937 stats
->tx_dropped
= ifd
->ifi_iqdrops
;
938 stats
->multicast
= ifd
->ifi_omcasts
;
939 stats
->collisions
= UINT64_MAX
;
940 stats
->rx_length_errors
= UINT64_MAX
;
941 stats
->rx_over_errors
= UINT64_MAX
;
942 stats
->rx_crc_errors
= UINT64_MAX
;
943 stats
->rx_frame_errors
= UINT64_MAX
;
944 stats
->rx_fifo_errors
= UINT64_MAX
;
945 stats
->rx_missed_errors
= UINT64_MAX
;
946 stats
->tx_aborted_errors
= UINT64_MAX
;
947 stats
->tx_carrier_errors
= UINT64_MAX
;
948 stats
->tx_fifo_errors
= UINT64_MAX
;
949 stats
->tx_heartbeat_errors
= UINT64_MAX
;
950 stats
->tx_window_errors
= UINT64_MAX
;
954 convert_stats(const struct netdev
*netdev
, struct netdev_stats
*stats
,
955 const struct if_data
*ifd
)
957 if (netdev_bsd_cast(netdev
)->tap_fd
== -1) {
958 convert_stats_system(stats
, ifd
);
960 convert_stats_tap(stats
, ifd
);
964 /* Retrieves current device stats for 'netdev'. */
966 netdev_bsd_get_stats(const struct netdev
*netdev_
, struct netdev_stats
*stats
)
968 #if defined(__FreeBSD__)
972 struct ifmibdata ifmd
;
977 mib
[2] = NETLINK_GENERIC
;
978 mib
[3] = IFMIB_SYSTEM
;
979 mib
[4] = IFMIB_IFCOUNT
;
981 len
= sizeof(if_count
);
983 if (sysctl(mib
, 5, &if_count
, &len
, (void *)0, 0) == -1) {
984 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
985 netdev_get_name(netdev_
), ovs_strerror(errno
));
989 mib
[5] = IFDATA_GENERAL
;
990 mib
[3] = IFMIB_IFDATA
;
992 for (i
= 1; i
<= if_count
; i
++) {
994 if (sysctl(mib
, 6, &ifmd
, &len
, (void *)0, 0) == -1) {
995 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
996 netdev_get_name(netdev_
), ovs_strerror(errno
));
998 } else if (!strcmp(ifmd
.ifmd_name
, netdev_get_name(netdev_
))) {
999 convert_stats(netdev
, stats
, &ifdr
.ifdr_data
);
1005 #elif defined(__NetBSD__)
1006 struct ifdatareq ifdr
;
1009 memset(&ifdr
, 0, sizeof(ifdr
));
1010 strncpy(ifdr
.ifdr_name
, netdev_get_kernel_name(netdev_
),
1011 sizeof(ifdr
.ifdr_name
));
1012 error
= af_link_ioctl(SIOCGIFDATA
, &ifdr
);
1014 convert_stats(netdev_
, stats
, &ifdr
.ifdr_data
);
1018 #error not implemented
1023 netdev_bsd_parse_media(int media
)
1025 uint32_t supported
= 0;
1026 bool half_duplex
= media
& IFM_HDX
? true : false;
1028 switch (IFM_SUBTYPE(media
)) {
1033 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
1034 supported
|= NETDEV_F_COPPER
;
1038 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
1039 supported
|= NETDEV_F_FIBER
;
1046 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
1047 supported
|= NETDEV_F_COPPER
;
1051 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
1052 supported
|= NETDEV_F_FIBER
;
1057 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
1058 supported
|= NETDEV_F_COPPER
;
1063 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
1064 supported
|= NETDEV_F_FIBER
;
1068 supported
|= NETDEV_F_10GB_FD
;
1069 supported
|= NETDEV_F_COPPER
;
1074 supported
|= NETDEV_F_10GB_FD
;
1075 supported
|= NETDEV_F_FIBER
;
1082 if (IFM_SUBTYPE(media
) == IFM_AUTO
) {
1083 supported
|= NETDEV_F_AUTONEG
;
1086 if (media & IFM_ETH_FMASK) {
1087 supported |= NETDEV_F_PAUSE;
1095 * Stores the features supported by 'netdev' into each of '*current',
1096 * '*advertised', '*supported', and '*peer' that are non-null. Each value is a
1097 * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if
1098 * successful, otherwise a positive errno value. On failure, all of the
1099 * passed-in values are set to 0.
1102 netdev_bsd_get_features(const struct netdev
*netdev
,
1103 enum netdev_features
*current
, uint32_t *advertised
,
1104 enum netdev_features
*supported
, uint32_t *peer
)
1106 struct ifmediareq ifmr
;
1112 /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */
1114 memset(&ifmr
, 0, sizeof(ifmr
));
1115 strncpy(ifmr
.ifm_name
, netdev_get_name(netdev
), sizeof ifmr
.ifm_name
);
1117 /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the
1118 * number of supported modes, and a second with a buffer to retrieve
1120 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
1122 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1123 netdev_get_name(netdev
), ovs_strerror(error
));
1127 media_list
= xcalloc(ifmr
.ifm_count
, sizeof(int));
1128 ifmr
.ifm_ulist
= media_list
;
1130 if (IFM_TYPE(ifmr
.ifm_current
) != IFM_ETHER
) {
1131 VLOG_DBG_RL(&rl
, "%s: doesn't appear to be ethernet",
1132 netdev_get_name(netdev
));
1137 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
1139 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1140 netdev_get_name(netdev
), ovs_strerror(error
));
1144 /* Current settings. */
1145 *current
= netdev_bsd_parse_media(ifmr
.ifm_active
);
1147 /* Advertised features. */
1148 *advertised
= netdev_bsd_parse_media(ifmr
.ifm_current
);
1150 /* Supported features. */
1152 for (i
= 0; i
< ifmr
.ifm_count
; i
++) {
1153 *supported
|= netdev_bsd_parse_media(ifmr
.ifm_ulist
[i
]);
1156 /* Peer advertisements. */
1157 *peer
= 0; /* XXX */
1166 * If 'netdev' has an assigned IPv4 address, sets '*in4' to that address and
1167 * '*netmask' to its netmask and returns true. Otherwise, returns false.
1170 netdev_bsd_get_in4(const struct netdev
*netdev_
, struct in_addr
*in4
,
1171 struct in_addr
*netmask
)
1173 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1176 ovs_mutex_lock(&netdev
->mutex
);
1177 if (!(netdev
->cache_valid
& VALID_IN4
)) {
1180 ifr
.ifr_addr
.sa_family
= AF_INET
;
1181 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
1182 SIOCGIFADDR
, "SIOCGIFADDR");
1184 const struct sockaddr_in
*sin
;
1186 sin
= ALIGNED_CAST(struct sockaddr_in
*, &ifr
.ifr_addr
);
1187 netdev
->in4
= sin
->sin_addr
;
1188 netdev
->cache_valid
|= VALID_IN4
;
1189 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
1190 SIOCGIFNETMASK
, "SIOCGIFNETMASK");
1192 *netmask
= sin
->sin_addr
;
1198 *netmask
= netdev
->netmask
;
1200 ovs_mutex_unlock(&netdev
->mutex
);
1202 return error
? error
: in4
->s_addr
== INADDR_ANY
? EADDRNOTAVAIL
: 0;
1206 * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If
1207 * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a
1208 * positive errno value.
1211 netdev_bsd_set_in4(struct netdev
*netdev_
, struct in_addr addr
,
1212 struct in_addr mask
)
1214 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1217 ovs_mutex_lock(&netdev
->mutex
);
1218 error
= do_set_addr(netdev_
, SIOCSIFADDR
, "SIOCSIFADDR", addr
);
1220 if (addr
.s_addr
!= INADDR_ANY
) {
1221 error
= do_set_addr(netdev_
, SIOCSIFNETMASK
,
1222 "SIOCSIFNETMASK", mask
);
1224 netdev
->cache_valid
|= VALID_IN4
;
1226 netdev
->netmask
= mask
;
1229 netdev_change_seq_changed(netdev_
);
1231 ovs_mutex_unlock(&netdev
->mutex
);
1237 netdev_bsd_get_in6(const struct netdev
*netdev_
, struct in6_addr
*in6
)
1239 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1240 if (!(netdev
->cache_valid
& VALID_IN6
)) {
1241 struct ifaddrs
*ifa
, *head
;
1242 struct sockaddr_in6
*sin6
;
1243 const char *netdev_name
= netdev_get_name(netdev_
);
1245 if (getifaddrs(&head
) != 0) {
1246 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1247 ovs_strerror(errno
));
1251 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1252 if (ifa
->ifa_addr
->sa_family
== AF_INET6
&&
1253 !strcmp(ifa
->ifa_name
, netdev_name
)) {
1254 sin6
= ALIGNED_CAST(struct sockaddr_in6
*, ifa
->ifa_addr
);
1256 memcpy(&netdev
->in6
, &sin6
->sin6_addr
, sin6
->sin6_len
);
1257 netdev
->cache_valid
|= VALID_IN6
;
1264 return EADDRNOTAVAIL
;
1270 #if defined(__NetBSD__)
1272 netdev_bsd_kernel_name_to_ovs_name(const char *kernel_name
)
1274 char *ovs_name
= NULL
;
1275 struct shash device_shash
;
1276 struct shash_node
*node
;
1278 shash_init(&device_shash
);
1279 netdev_get_devices(&netdev_tap_class
, &device_shash
);
1280 SHASH_FOR_EACH(node
, &device_shash
) {
1281 struct netdev
*netdev
= node
->data
;
1282 struct netdev_bsd
* const dev
= netdev_bsd_cast(netdev
);
1284 if (!strcmp(dev
->kernel_name
, kernel_name
)) {
1286 ovs_name
= xstrdup(netdev_get_name(&dev
->up
));
1288 netdev_close(netdev
);
1290 shash_destroy(&device_shash
);
1292 return ovs_name
? ovs_name
: xstrdup(kernel_name
);
1297 netdev_bsd_get_next_hop(const struct in_addr
*host OVS_UNUSED
,
1298 struct in_addr
*next_hop OVS_UNUSED
,
1299 char **netdev_name OVS_UNUSED
)
1301 #if defined(__NetBSD__)
1303 struct sockaddr_in sin
;
1304 struct sockaddr_dl sdl
;
1311 struct rt_msghdr
*rtm
= &buf
.h
;
1312 const pid_t pid
= getpid();
1315 bool gateway
= false;
1316 char *ifname
= NULL
;
1319 memset(next_hop
, 0, sizeof(*next_hop
));
1320 *netdev_name
= NULL
;
1322 memset(&sin
, 0, sizeof(sin
));
1323 sin
.sin_len
= sizeof(sin
);
1324 sin
.sin_family
= AF_INET
;
1326 sin
.sin_addr
= *host
;
1328 memset(&sdl
, 0, sizeof(sdl
));
1329 sdl
.sdl_len
= sizeof(sdl
);
1330 sdl
.sdl_family
= AF_LINK
;
1332 s
= socket(PF_ROUTE
, SOCK_RAW
, 0);
1333 memset(&buf
, 0, sizeof(buf
));
1334 rtm
->rtm_flags
= RTF_HOST
|RTF_UP
;
1335 rtm
->rtm_version
= RTM_VERSION
;
1336 rtm
->rtm_addrs
= RTA_DST
|RTA_IFP
;
1337 cp
= (void *)&buf
.space
;
1338 memcpy(cp
, &sin
, sizeof(sin
));
1339 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sin
);
1340 memcpy(cp
, &sdl
, sizeof(sdl
));
1341 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sdl
);
1342 rtm
->rtm_msglen
= cp
- (char *)(void *)rtm
;
1343 rtm
->rtm_seq
= ++seq
;
1344 rtm
->rtm_type
= RTM_GET
;
1346 write(s
, rtm
, rtm
->rtm_msglen
);
1347 memset(&buf
, 0, sizeof(buf
));
1349 ssz
= read(s
, &buf
, sizeof(buf
));
1350 } while (ssz
> 0 && (rtm
->rtm_seq
!= seq
|| rtm
->rtm_pid
!= pid
));
1351 saved_errno
= errno
;
1357 return EPIPE
; /* XXX */
1359 cp
= (void *)&buf
.space
;
1360 for (i
= 1; i
; i
<<= 1) {
1361 if ((rtm
->rtm_addrs
& i
) != 0) {
1362 const struct sockaddr
*sa
= (const void *)cp
;
1364 if ((i
== RTA_GATEWAY
) && sa
->sa_family
== AF_INET
) {
1365 const struct sockaddr_in
* const sin
=
1366 ALIGNED_CAST(const struct sockaddr_in
*, sa
);
1368 *next_hop
= sin
->sin_addr
;
1371 if ((i
== RTA_IFP
) && sa
->sa_family
== AF_LINK
) {
1372 const struct sockaddr_dl
* const sdl
=
1373 ALIGNED_CAST(const struct sockaddr_dl
*, sa
);
1376 kernel_name
= xmemdup0(sdl
->sdl_data
, sdl
->sdl_nlen
);
1377 ifname
= netdev_bsd_kernel_name_to_ovs_name(kernel_name
);
1383 if (ifname
== NULL
) {
1389 *netdev_name
= ifname
;
1390 VLOG_DBG("host " IP_FMT
" next-hop " IP_FMT
" if %s",
1391 IP_ARGS(host
->s_addr
), IP_ARGS(next_hop
->s_addr
), *netdev_name
);
1399 netdev_bsd_arp_lookup(const struct netdev
*netdev OVS_UNUSED
,
1400 ovs_be32 ip OVS_UNUSED
,
1401 uint8_t mac
[ETH_ADDR_LEN
] OVS_UNUSED
)
1403 #if defined(__NetBSD__)
1404 const struct rt_msghdr
*rtm
;
1417 mib
[4] = NET_RT_FLAGS
;
1418 mib
[5] = RTF_LLINFO
;
1419 if (sysctl(mib
, 6, NULL
, &needed
, NULL
, 0) == -1) {
1423 buf
= xmalloc(needed
);
1424 if (sysctl(mib
, 6, buf
, &needed
, NULL
, 0) == -1) {
1429 for (cp
= buf
; cp
< ep
; cp
+= rtm
->rtm_msglen
) {
1430 const struct sockaddr_inarp
*sina
;
1431 const struct sockaddr_dl
*sdl
;
1433 rtm
= (const void *)cp
;
1434 sina
= (const void *)(rtm
+ 1);
1435 if (ip
!= sina
->sin_addr
.s_addr
) {
1438 sdl
= (const void *)
1439 ((const char *)(const void *)sina
+ RT_ROUNDUP(sina
->sin_len
));
1440 if (sdl
->sdl_alen
== ETH_ADDR_LEN
) {
1441 memcpy(mac
, &sdl
->sdl_data
[sdl
->sdl_nlen
], ETH_ADDR_LEN
);
1456 make_in4_sockaddr(struct sockaddr
*sa
, struct in_addr addr
)
1458 struct sockaddr_in sin
;
1459 memset(&sin
, 0, sizeof sin
);
1460 sin
.sin_family
= AF_INET
;
1461 sin
.sin_addr
= addr
;
1464 memset(sa
, 0, sizeof *sa
);
1465 memcpy(sa
, &sin
, sizeof sin
);
1469 do_set_addr(struct netdev
*netdev
,
1470 unsigned long ioctl_nr
, const char *ioctl_name
,
1471 struct in_addr addr
)
1474 make_in4_sockaddr(&ifr
.ifr_addr
, addr
);
1475 return af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev
), &ifr
, ioctl_nr
,
1480 nd_to_iff_flags(enum netdev_flags nd
)
1483 if (nd
& NETDEV_UP
) {
1486 if (nd
& NETDEV_PROMISC
) {
1488 #if defined(IFF_PPROMISC)
1489 iff
|= IFF_PPROMISC
;
1492 if (nd
& NETDEV_LOOPBACK
) {
1493 iff
|= IFF_LOOPBACK
;
1499 iff_to_nd_flags(int iff
)
1501 enum netdev_flags nd
= 0;
1505 if (iff
& IFF_PROMISC
) {
1506 nd
|= NETDEV_PROMISC
;
1508 if (iff
& IFF_LOOPBACK
) {
1509 nd
|= NETDEV_LOOPBACK
;
1515 netdev_bsd_update_flags(struct netdev
*netdev_
, enum netdev_flags off
,
1516 enum netdev_flags on
, enum netdev_flags
*old_flagsp
)
1518 int old_flags
, new_flags
;
1521 error
= get_flags(netdev_
, &old_flags
);
1523 *old_flagsp
= iff_to_nd_flags(old_flags
);
1524 new_flags
= (old_flags
& ~nd_to_iff_flags(off
)) | nd_to_iff_flags(on
);
1525 if (new_flags
!= old_flags
) {
1526 error
= set_flags(netdev_get_kernel_name(netdev_
), new_flags
);
1527 netdev_change_seq_changed(netdev_
);
1533 /* Linux has also different GET_STATS, SET_STATS,
1536 #define NETDEV_BSD_CLASS(NAME, CONSTRUCT, \
1546 netdev_bsd_destruct, \
1547 netdev_bsd_dealloc, \
1548 NULL, /* get_config */ \
1549 NULL, /* set_config */ \
1550 NULL, /* get_tunnel_config */ \
1553 netdev_bsd_send_wait, \
1555 netdev_bsd_set_etheraddr, \
1556 netdev_bsd_get_etheraddr, \
1557 netdev_bsd_get_mtu, \
1558 NULL, /* set_mtu */ \
1559 netdev_bsd_get_ifindex, \
1560 netdev_bsd_get_carrier, \
1561 NULL, /* get_carrier_resets */ \
1562 NULL, /* set_miimon_interval */ \
1563 netdev_bsd_get_stats, \
1564 NULL, /* set_stats */ \
1567 NULL, /* set_advertisement */ \
1568 NULL, /* set_policing */ \
1569 NULL, /* get_qos_type */ \
1570 NULL, /* get_qos_capabilities */ \
1571 NULL, /* get_qos */ \
1572 NULL, /* set_qos */ \
1573 NULL, /* get_queue */ \
1574 NULL, /* set_queue */ \
1575 NULL, /* delete_queue */ \
1576 NULL, /* get_queue_stats */ \
1577 NULL, /* queue_dump_start */ \
1578 NULL, /* queue_dump_next */ \
1579 NULL, /* queue_dump_done */ \
1580 NULL, /* dump_queue_stats */ \
1582 netdev_bsd_get_in4, \
1583 netdev_bsd_set_in4, \
1584 netdev_bsd_get_in6, \
1585 NULL, /* add_router */ \
1586 netdev_bsd_get_next_hop, \
1587 NULL, /* get_status */ \
1588 netdev_bsd_arp_lookup, /* arp_lookup */ \
1590 netdev_bsd_update_flags, \
1592 netdev_bsd_rxq_alloc, \
1593 netdev_bsd_rxq_construct, \
1594 netdev_bsd_rxq_destruct, \
1595 netdev_bsd_rxq_dealloc, \
1596 netdev_bsd_rxq_recv, \
1597 netdev_bsd_rxq_wait, \
1598 netdev_bsd_rxq_drain, \
1601 const struct netdev_class netdev_bsd_class
=
1604 netdev_bsd_construct_system
,
1605 netdev_bsd_get_features
);
1607 const struct netdev_class netdev_tap_class
=
1610 netdev_bsd_construct_tap
,
1611 netdev_bsd_get_features
);
1615 destroy_tap(int fd
, const char *name
)
1620 strcpy(ifr
.ifr_name
, name
);
1621 /* XXX What to do if this call fails? */
1622 af_inet_ioctl(SIOCIFDESTROY
, &ifr
);
1626 get_flags(const struct netdev
*netdev
, int *flags
)
1631 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev
), &ifr
,
1632 SIOCGIFFLAGS
, "SIOCGIFFLAGS");
1634 *flags
= ifr_get_flags(&ifr
);
1640 set_flags(const char *name
, int flags
)
1644 ifr_set_flags(&ifr
, flags
);
1646 return af_inet_ifreq_ioctl(name
, &ifr
, SIOCSIFFLAGS
, "SIOCSIFFLAGS");
1650 get_ifindex(const struct netdev
*netdev_
, int *ifindexp
)
1652 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1654 if (!(netdev
->cache_valid
& VALID_IFINDEX
)) {
1655 int ifindex
= if_nametoindex(netdev_get_name(netdev_
));
1659 netdev
->cache_valid
|= VALID_IFINDEX
;
1660 netdev
->ifindex
= ifindex
;
1662 *ifindexp
= netdev
->ifindex
;
1667 get_etheraddr(const char *netdev_name
, uint8_t ea
[ETH_ADDR_LEN
])
1669 struct ifaddrs
*head
;
1670 struct ifaddrs
*ifa
;
1671 struct sockaddr_dl
*sdl
;
1673 if (getifaddrs(&head
) != 0) {
1674 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1675 ovs_strerror(errno
));
1679 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1680 if (ifa
->ifa_addr
->sa_family
== AF_LINK
) {
1681 if (!strcmp(ifa
->ifa_name
, netdev_name
)) {
1682 sdl
= ALIGNED_CAST(struct sockaddr_dl
*, ifa
->ifa_addr
);
1684 memcpy(ea
, LLADDR(sdl
), sdl
->sdl_alen
);
1692 VLOG_ERR("could not find ethernet address for %s device", netdev_name
);
1698 set_etheraddr(const char *netdev_name OVS_UNUSED
, int hwaddr_family OVS_UNUSED
,
1699 int hwaddr_len OVS_UNUSED
,
1700 const uint8_t mac
[ETH_ADDR_LEN
] OVS_UNUSED
)
1702 #if defined(__FreeBSD__)
1706 memset(&ifr
, 0, sizeof ifr
);
1707 strncpy(ifr
.ifr_name
, netdev_name
, sizeof ifr
.ifr_name
);
1708 ifr
.ifr_addr
.sa_family
= hwaddr_family
;
1709 ifr
.ifr_addr
.sa_len
= hwaddr_len
;
1710 memcpy(ifr
.ifr_addr
.sa_data
, mac
, hwaddr_len
);
1711 error
= af_inet_ioctl(SIOCSIFLLADDR
, &ifr
);
1713 VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s",
1714 netdev_name
, ovs_strerror(error
));
1718 #elif defined(__NetBSD__)
1719 struct if_laddrreq req
;
1720 struct sockaddr_dl
*sdl
;
1721 struct sockaddr_storage oldaddr
;
1725 * get the old address, add new one, and then remove old one.
1728 if (hwaddr_len
!= ETH_ADDR_LEN
) {
1729 /* just to be safe about sockaddr storage size */
1732 memset(&req
, 0, sizeof(req
));
1733 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1734 req
.addr
.ss_len
= sizeof(req
.addr
);
1735 req
.addr
.ss_family
= hwaddr_family
;
1736 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1737 sdl
->sdl_alen
= hwaddr_len
;
1739 error
= af_link_ioctl(SIOCGLIFADDR
, &req
);
1743 if (!memcmp(&sdl
->sdl_data
[sdl
->sdl_nlen
], mac
, hwaddr_len
)) {
1748 memset(&req
, 0, sizeof(req
));
1749 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1750 req
.flags
= IFLR_ACTIVE
;
1751 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1752 sdl
->sdl_len
= offsetof(struct sockaddr_dl
, sdl_data
) + hwaddr_len
;
1753 sdl
->sdl_alen
= hwaddr_len
;
1754 sdl
->sdl_family
= hwaddr_family
;
1755 memcpy(sdl
->sdl_data
, mac
, hwaddr_len
);
1756 error
= af_link_ioctl(SIOCALIFADDR
, &req
);
1761 memset(&req
, 0, sizeof(req
));
1762 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1764 return af_link_ioctl(SIOCDLIFADDR
, &req
);
1766 #error not implemented
1771 ifr_get_flags(const struct ifreq
*ifr
)
1773 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1774 return (ifr
->ifr_flagshigh
<< 16) | ifr
->ifr_flags
;
1776 return ifr
->ifr_flags
;
1781 ifr_set_flags(struct ifreq
*ifr
, int flags
)
1783 ifr
->ifr_flags
= flags
;
1784 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1785 ifr
->ifr_flagshigh
= flags
>> 16;
1789 /* Calls ioctl() on an AF_LINK sock, passing the specified 'command' and
1790 * 'arg'. Returns 0 if successful, otherwise a positive errno value. */
1792 af_link_ioctl(unsigned long command
, const void *arg
)
1794 static struct ovsthread_once once
= OVSTHREAD_ONCE_INITIALIZER
;
1797 if (ovsthread_once_start(&once
)) {
1798 sock
= socket(AF_LINK
, SOCK_DGRAM
, 0);
1801 VLOG_ERR("failed to create link socket: %s", ovs_strerror(errno
));
1803 ovsthread_once_done(&once
);
1806 return (sock
< 0 ? -sock
1807 : ioctl(sock
, command
, arg
) == -1 ? errno