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/if_inarp.h>
50 #include "dp-packet.h"
51 #include "dpif-netdev.h"
52 #include "dynamic-string.h"
53 #include "fatal-signal.h"
54 #include "openflow/openflow.h"
55 #include "ovs-thread.h"
57 #include "poll-loop.h"
59 #include "socket-util.h"
62 #include "openvswitch/vlog.h"
64 VLOG_DEFINE_THIS_MODULE(netdev_bsd
);
67 struct netdev_rxq_bsd
{
70 /* Packet capture descriptor for a system network device.
71 * For a tap device this is NULL. */
74 /* Selectable file descriptor for the network device.
75 * This descriptor will be used for polling operations. */
82 /* Never changes after initialization. */
85 /* Protects all members below. */
86 struct ovs_mutex mutex
;
88 unsigned int cache_valid
;
91 uint8_t etheraddr
[ETH_ADDR_LEN
];
93 struct in_addr netmask
;
98 int tap_fd
; /* TAP character device, if any, otherwise -1. */
100 /* Used for sending packets on non-tap devices. */
107 VALID_IFINDEX
= 1 << 0,
108 VALID_ETHERADDR
= 1 << 1,
112 VALID_CARRIER
= 1 << 5
115 #define PCAP_SNAPLEN 2048
119 * Notifier used to invalidate device informations in case of status change.
121 * It will be registered with a 'rtbsd_notifier_register()' when the first
122 * device will be created with the call of either 'netdev_bsd_tap_create()' or
123 * 'netdev_bsd_system_create()'.
125 * The callback associated with this notifier ('netdev_bsd_cache_cb()') will
126 * invalidate cached information about the device.
128 static struct rtbsd_notifier netdev_bsd_cache_notifier
;
129 static int cache_notifier_refcount
;
131 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(5, 20);
133 static void destroy_tap(int fd
, const char *name
);
134 static int get_flags(const struct netdev
*, int *flagsp
);
135 static int set_flags(const char *, int flags
);
136 static int do_set_addr(struct netdev
*netdev
,
137 unsigned long ioctl_nr
, const char *ioctl_name
,
138 struct in_addr addr
);
139 static int get_etheraddr(const char *netdev_name
, uint8_t ea
[ETH_ADDR_LEN
]);
140 static int set_etheraddr(const char *netdev_name
, int hwaddr_family
,
141 int hwaddr_len
, const uint8_t[ETH_ADDR_LEN
]);
142 static int get_ifindex(const struct netdev
*, int *ifindexp
);
144 static int ifr_get_flags(const struct ifreq
*);
145 static void ifr_set_flags(struct ifreq
*, int flags
);
148 static int af_link_ioctl(unsigned long command
, const void *arg
);
151 static void netdev_bsd_run(void);
152 static int netdev_bsd_get_mtu(const struct netdev
*netdev_
, int *mtup
);
155 is_netdev_bsd_class(const struct netdev_class
*netdev_class
)
157 return netdev_class
->run
== netdev_bsd_run
;
160 static struct netdev_bsd
*
161 netdev_bsd_cast(const struct netdev
*netdev
)
163 ovs_assert(is_netdev_bsd_class(netdev_get_class(netdev
)));
164 return CONTAINER_OF(netdev
, struct netdev_bsd
, up
);
167 static struct netdev_rxq_bsd
*
168 netdev_rxq_bsd_cast(const struct netdev_rxq
*rxq
)
170 ovs_assert(is_netdev_bsd_class(netdev_get_class(rxq
->netdev
)));
171 return CONTAINER_OF(rxq
, struct netdev_rxq_bsd
, up
);
175 netdev_get_kernel_name(const struct netdev
*netdev
)
177 return netdev_bsd_cast(netdev
)->kernel_name
;
181 * Perform periodic work needed by netdev. In BSD netdevs it checks for any
182 * interface status changes, and eventually calls all the user callbacks.
187 rtbsd_notifier_run();
191 * Arranges for poll_block() to wake up if the "run" member function needs to
195 netdev_bsd_wait(void)
197 rtbsd_notifier_wait();
200 /* Invalidate cache in case of interface status change. */
202 netdev_bsd_cache_cb(const struct rtbsd_change
*change
,
203 void *aux OVS_UNUSED
)
205 struct netdev_bsd
*dev
;
208 struct netdev
*base_dev
= netdev_from_name(change
->if_name
);
211 const struct netdev_class
*netdev_class
=
212 netdev_get_class(base_dev
);
214 if (is_netdev_bsd_class(netdev_class
)) {
215 dev
= netdev_bsd_cast(base_dev
);
216 dev
->cache_valid
= 0;
217 netdev_change_seq_changed(base_dev
);
219 netdev_close(base_dev
);
223 * XXX the API is lacking, we should be able to iterate on the list of
224 * netdevs without having to store the info in a temp shash.
226 struct shash device_shash
;
227 struct shash_node
*node
;
229 shash_init(&device_shash
);
230 netdev_get_devices(&netdev_bsd_class
, &device_shash
);
231 SHASH_FOR_EACH (node
, &device_shash
) {
232 struct netdev
*netdev
= node
->data
;
233 dev
= netdev_bsd_cast(netdev
);
234 dev
->cache_valid
= 0;
235 netdev_change_seq_changed(netdev
);
236 netdev_close(netdev
);
238 shash_destroy(&device_shash
);
243 cache_notifier_ref(void)
247 if (!cache_notifier_refcount
) {
248 ret
= rtbsd_notifier_register(&netdev_bsd_cache_notifier
,
249 netdev_bsd_cache_cb
, NULL
);
254 cache_notifier_refcount
++;
259 cache_notifier_unref(void)
261 cache_notifier_refcount
--;
262 if (cache_notifier_refcount
== 0) {
263 rtbsd_notifier_unregister(&netdev_bsd_cache_notifier
);
268 static struct netdev
*
269 netdev_bsd_alloc(void)
271 struct netdev_bsd
*netdev
= xzalloc(sizeof *netdev
);
276 netdev_bsd_construct_system(struct netdev
*netdev_
)
278 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
279 enum netdev_flags flags
;
282 error
= cache_notifier_ref();
287 ovs_mutex_init(&netdev
->mutex
);
289 netdev
->kernel_name
= xstrdup(netdev_
->name
);
291 /* Verify that the netdev really exists by attempting to read its flags */
292 error
= netdev_get_flags(netdev_
, &flags
);
293 if (error
== ENXIO
) {
294 free(netdev
->kernel_name
);
295 cache_notifier_unref();
303 netdev_bsd_construct_tap(struct netdev
*netdev_
)
305 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
306 const char *name
= netdev_
->name
;
309 char *kernel_name
= NULL
;
311 error
= cache_notifier_ref();
316 memset(&ifr
, 0, sizeof(ifr
));
318 /* Create a tap device by opening /dev/tap. The TAPGIFNAME ioctl is used
319 * to retrieve the name of the tap device. */
320 ovs_mutex_init(&netdev
->mutex
);
321 netdev
->tap_fd
= open("/dev/tap", O_RDWR
);
322 if (netdev
->tap_fd
< 0) {
324 VLOG_WARN("opening \"/dev/tap\" failed: %s", ovs_strerror(error
));
325 goto error_unref_notifier
;
328 /* Retrieve tap name (e.g. tap0) */
329 if (ioctl(netdev
->tap_fd
, TAPGIFNAME
, &ifr
) == -1) {
330 /* XXX Need to destroy the device? */
332 close(netdev
->tap_fd
);
333 goto error_unref_notifier
;
336 /* Change the name of the tap device */
337 #if defined(SIOCSIFNAME)
338 ifr
.ifr_data
= (void *)name
;
339 error
= af_inet_ioctl(SIOCSIFNAME
, &ifr
);
341 destroy_tap(netdev
->tap_fd
, ifr
.ifr_name
);
342 goto error_unref_notifier
;
344 kernel_name
= xstrdup(name
);
347 * NetBSD doesn't support inteface renaming.
349 VLOG_INFO("tap %s is created for bridge %s", ifr
.ifr_name
, name
);
350 kernel_name
= xstrdup(ifr
.ifr_name
);
353 /* set non-blocking. */
354 error
= set_nonblocking(netdev
->tap_fd
);
356 destroy_tap(netdev
->tap_fd
, kernel_name
);
357 goto error_unref_notifier
;
361 ifr_set_flags(&ifr
, IFF_UP
);
362 ovs_strlcpy(ifr
.ifr_name
, kernel_name
, sizeof ifr
.ifr_name
);
363 error
= af_inet_ioctl(SIOCSIFFLAGS
, &ifr
);
365 destroy_tap(netdev
->tap_fd
, kernel_name
);
366 goto error_unref_notifier
;
369 netdev
->kernel_name
= kernel_name
;
373 error_unref_notifier
:
374 ovs_mutex_destroy(&netdev
->mutex
);
375 cache_notifier_unref();
382 netdev_bsd_destruct(struct netdev
*netdev_
)
384 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
386 cache_notifier_unref();
388 if (netdev
->tap_fd
>= 0) {
389 destroy_tap(netdev
->tap_fd
, netdev_get_kernel_name(netdev_
));
392 pcap_close(netdev
->pcap
);
394 free(netdev
->kernel_name
);
395 ovs_mutex_destroy(&netdev
->mutex
);
399 netdev_bsd_dealloc(struct netdev
*netdev_
)
401 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
407 netdev_bsd_open_pcap(const char *name
, pcap_t
**pcapp
, int *fdp
)
409 char errbuf
[PCAP_ERRBUF_SIZE
];
415 /* Open the pcap device. The device is opened in non-promiscuous mode
416 * because the interface flags are manually set by the caller. */
418 pcap
= pcap_open_live(name
, PCAP_SNAPLEN
, 0, 1000, errbuf
);
420 VLOG_ERR_RL(&rl
, "%s: pcap_open_live failed: %s", name
, errbuf
);
424 if (errbuf
[0] != '\0') {
425 VLOG_WARN_RL(&rl
, "%s: pcap_open_live: %s", name
, errbuf
);
428 /* Get the underlying fd. */
429 fd
= pcap_get_selectable_fd(pcap
);
431 VLOG_WARN_RL(&rl
, "%s: no selectable file descriptor", name
);
436 /* Set non-blocking mode. Also the BIOCIMMEDIATE ioctl must be called
437 * on the file descriptor returned by pcap_get_selectable_fd to achieve
438 * a real non-blocking behaviour.*/
439 error
= pcap_setnonblock(pcap
, 1, errbuf
);
445 /* This call assure that reads return immediately upon packet
446 * reception. Otherwise, a read will block until either the kernel
447 * buffer becomes full or a timeout occurs. */
448 if (ioctl(fd
, BIOCIMMEDIATE
, &one
) < 0 ) {
449 VLOG_ERR_RL(&rl
, "ioctl(BIOCIMMEDIATE) on %s device failed: %s",
450 name
, ovs_strerror(errno
));
455 /* Capture only incoming packets. */
456 error
= pcap_setdirection(pcap
, PCAP_D_IN
);
475 static struct netdev_rxq
*
476 netdev_bsd_rxq_alloc(void)
478 struct netdev_rxq_bsd
*rxq
= xzalloc(sizeof *rxq
);
483 netdev_bsd_rxq_construct(struct netdev_rxq
*rxq_
)
485 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
486 struct netdev
*netdev_
= rxq
->up
.netdev
;
487 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
490 if (!strcmp(netdev_get_type(netdev_
), "tap")) {
491 rxq
->pcap_handle
= NULL
;
492 rxq
->fd
= netdev
->tap_fd
;
495 ovs_mutex_lock(&netdev
->mutex
);
496 error
= netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_
),
497 &rxq
->pcap_handle
, &rxq
->fd
);
498 ovs_mutex_unlock(&netdev
->mutex
);
505 netdev_bsd_rxq_destruct(struct netdev_rxq
*rxq_
)
507 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
509 if (rxq
->pcap_handle
) {
510 pcap_close(rxq
->pcap_handle
);
515 netdev_bsd_rxq_dealloc(struct netdev_rxq
*rxq_
)
517 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
522 /* The recv callback of the netdev class returns the number of bytes of the
525 * This can be done by the pcap_next() function. Unfortunately pcap_next() does
526 * not make difference between a missing packet on the capture interface and
527 * an error during the file capture. We can use the pcap_dispatch() function
528 * instead, which is able to distinguish between errors and null packet.
530 * To make pcap_dispatch() returns the number of bytes read from the interface
531 * we need to define the following callback and argument.
540 * This callback will be executed on every captured packet.
542 * If the packet captured by pcap_dispatch() does not fit the pcap buffer,
543 * pcap returns a truncated packet and we follow this behavior.
545 * The argument args->retval is the packet size in bytes.
548 proc_pkt(u_char
*args_
, const struct pcap_pkthdr
*hdr
, const u_char
*packet
)
550 struct pcap_arg
*args
= ALIGNED_CAST(struct pcap_arg
*, args_
);
552 if (args
->size
< hdr
->len
) {
553 VLOG_WARN_RL(&rl
, "packet truncated");
554 args
->retval
= args
->size
;
556 args
->retval
= hdr
->len
;
559 /* copy the packet to our buffer */
560 memcpy(args
->data
, packet
, args
->retval
);
564 * This function attempts to receive a packet from the specified network
565 * device. It is assumed that the network device is a system device or a tap
566 * device opened as a system one. In this case the read operation is performed
570 netdev_rxq_bsd_recv_pcap(struct netdev_rxq_bsd
*rxq
, struct dp_packet
*buffer
)
575 /* prepare the pcap argument to store the packet */
576 arg
.size
= dp_packet_tailroom(buffer
);
577 arg
.data
= dp_packet_data(buffer
);
580 ret
= pcap_dispatch(rxq
->pcap_handle
, 1, proc_pkt
, (u_char
*) &arg
);
583 dp_packet_set_size(buffer
, dp_packet_size(buffer
) + arg
.retval
);
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 * 'rxq->fd' is initialized with the tap file descriptor.
602 netdev_rxq_bsd_recv_tap(struct netdev_rxq_bsd
*rxq
, struct dp_packet
*buffer
)
604 size_t size
= dp_packet_tailroom(buffer
);
607 ssize_t retval
= read(rxq
->fd
, dp_packet_data(buffer
), size
);
609 dp_packet_set_size(buffer
, dp_packet_size(buffer
) + retval
);
611 } else if (errno
!= EINTR
) {
612 if (errno
!= EAGAIN
) {
613 VLOG_WARN_RL(&rl
, "error receiving Ethernet packet on %s: %s",
614 ovs_strerror(errno
), netdev_rxq_get_name(&rxq
->up
));
622 netdev_bsd_rxq_recv(struct netdev_rxq
*rxq_
, struct dp_packet
**packets
,
625 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
626 struct netdev
*netdev
= rxq
->up
.netdev
;
627 struct dp_packet
*packet
;
631 if (netdev_bsd_get_mtu(netdev
, &mtu
)) {
632 mtu
= ETH_PAYLOAD_MAX
;
635 packet
= dp_packet_new_with_headroom(VLAN_ETH_HEADER_LEN
+ mtu
,
637 retval
= (rxq
->pcap_handle
638 ? netdev_rxq_bsd_recv_pcap(rxq
, packet
)
639 : netdev_rxq_bsd_recv_tap(rxq
, packet
));
642 dp_packet_delete(packet
);
644 dp_packet_pad(packet
);
645 dp_packet_set_dp_hash(packet
, 0);
653 * Registers with the poll loop to wake up from the next call to poll_block()
654 * when a packet is ready to be received with netdev_rxq_recv() on 'rxq'.
657 netdev_bsd_rxq_wait(struct netdev_rxq
*rxq_
)
659 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
661 poll_fd_wait(rxq
->fd
, POLLIN
);
664 /* Discards all packets waiting to be received from 'rxq'. */
666 netdev_bsd_rxq_drain(struct netdev_rxq
*rxq_
)
669 struct netdev_rxq_bsd
*rxq
= netdev_rxq_bsd_cast(rxq_
);
671 strcpy(ifr
.ifr_name
, netdev_get_kernel_name(netdev_rxq_get_netdev(rxq_
)));
672 if (ioctl(rxq
->fd
, BIOCFLUSH
, &ifr
) == -1) {
673 VLOG_DBG_RL(&rl
, "%s: ioctl(BIOCFLUSH) failed: %s",
674 netdev_rxq_get_name(rxq_
), ovs_strerror(errno
));
681 * Send a packet on the specified network device. The device could be either a
682 * system or a tap device.
685 netdev_bsd_send(struct netdev
*netdev_
, int qid OVS_UNUSED
,
686 struct dp_packet
**pkts
, int cnt
, bool may_steal
)
688 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
689 const char *name
= netdev_get_name(netdev_
);
693 ovs_mutex_lock(&dev
->mutex
);
694 if (dev
->tap_fd
< 0 && !dev
->pcap
) {
695 error
= netdev_bsd_open_pcap(name
, &dev
->pcap
, &dev
->fd
);
700 for (i
= 0; i
< cnt
; i
++) {
701 const void *data
= dp_packet_data(pkts
[i
]);
702 size_t size
= dp_packet_size(pkts
[i
]);
706 if (dev
->tap_fd
>= 0) {
707 retval
= write(dev
->tap_fd
, data
, size
);
709 retval
= pcap_inject(dev
->pcap
, data
, size
);
712 if (errno
== EINTR
) {
716 if (error
!= EAGAIN
) {
717 VLOG_WARN_RL(&rl
, "error sending Ethernet packet on"
718 " %s: %s", name
, ovs_strerror(error
));
721 } else if (retval
!= size
) {
722 VLOG_WARN_RL(&rl
, "sent partial Ethernet packet "
723 "(%"PRIuSIZE
" bytes of "
724 "%"PRIuSIZE
") on %s", retval
, size
, name
);
732 ovs_mutex_unlock(&dev
->mutex
);
734 for (i
= 0; i
< cnt
; i
++) {
735 dp_packet_delete(pkts
[i
]);
743 * Registers with the poll loop to wake up from the next call to poll_block()
744 * when the packet transmission queue has sufficient room to transmit a packet
745 * with netdev_send().
748 netdev_bsd_send_wait(struct netdev
*netdev_
, int qid OVS_UNUSED
)
750 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
752 ovs_mutex_lock(&dev
->mutex
);
753 if (dev
->tap_fd
>= 0) {
754 /* TAP device always accepts packets. */
755 poll_immediate_wake();
756 } else if (dev
->pcap
) {
757 poll_fd_wait(dev
->fd
, POLLOUT
);
759 /* We haven't even tried to send a packet yet. */
760 poll_immediate_wake();
762 ovs_mutex_unlock(&dev
->mutex
);
766 * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful,
767 * otherwise a positive errno value.
770 netdev_bsd_set_etheraddr(struct netdev
*netdev_
,
771 const uint8_t mac
[ETH_ADDR_LEN
])
773 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
776 ovs_mutex_lock(&netdev
->mutex
);
777 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)
778 || !eth_addr_equals(netdev
->etheraddr
, mac
)) {
779 error
= set_etheraddr(netdev_get_kernel_name(netdev_
), AF_LINK
,
782 netdev
->cache_valid
|= VALID_ETHERADDR
;
783 memcpy(netdev
->etheraddr
, mac
, ETH_ADDR_LEN
);
784 netdev_change_seq_changed(netdev_
);
787 ovs_mutex_unlock(&netdev
->mutex
);
793 * Returns a pointer to 'netdev''s MAC address. The caller must not modify or
794 * free the returned buffer.
797 netdev_bsd_get_etheraddr(const struct netdev
*netdev_
,
798 uint8_t mac
[ETH_ADDR_LEN
])
800 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
803 ovs_mutex_lock(&netdev
->mutex
);
804 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)) {
805 error
= get_etheraddr(netdev_get_kernel_name(netdev_
),
808 netdev
->cache_valid
|= VALID_ETHERADDR
;
812 memcpy(mac
, netdev
->etheraddr
, ETH_ADDR_LEN
);
814 ovs_mutex_unlock(&netdev
->mutex
);
820 * Returns the maximum size of transmitted (and received) packets on 'netdev',
821 * in bytes, not including the hardware header; thus, this is typically 1500
822 * bytes for Ethernet devices.
825 netdev_bsd_get_mtu(const struct netdev
*netdev_
, int *mtup
)
827 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
830 ovs_mutex_lock(&netdev
->mutex
);
831 if (!(netdev
->cache_valid
& VALID_MTU
)) {
834 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
835 SIOCGIFMTU
, "SIOCGIFMTU");
837 netdev
->mtu
= ifr
.ifr_mtu
;
838 netdev
->cache_valid
|= VALID_MTU
;
844 ovs_mutex_unlock(&netdev
->mutex
);
850 netdev_bsd_get_ifindex(const struct netdev
*netdev_
)
852 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
855 ovs_mutex_lock(&netdev
->mutex
);
856 error
= get_ifindex(netdev_
, &ifindex
);
857 ovs_mutex_unlock(&netdev
->mutex
);
859 return error
? -error
: ifindex
;
863 netdev_bsd_get_carrier(const struct netdev
*netdev_
, bool *carrier
)
865 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
868 ovs_mutex_lock(&netdev
->mutex
);
869 if (!(netdev
->cache_valid
& VALID_CARRIER
)) {
870 struct ifmediareq ifmr
;
872 memset(&ifmr
, 0, sizeof(ifmr
));
873 ovs_strlcpy(ifmr
.ifm_name
, netdev_get_kernel_name(netdev_
),
874 sizeof ifmr
.ifm_name
);
876 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
878 netdev
->carrier
= (ifmr
.ifm_status
& IFM_ACTIVE
) == IFM_ACTIVE
;
879 netdev
->cache_valid
|= VALID_CARRIER
;
881 /* If the interface doesn't report whether the media is active,
882 * just assume it is active. */
883 if ((ifmr
.ifm_status
& IFM_AVALID
) == 0) {
884 netdev
->carrier
= true;
887 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
888 netdev_get_name(netdev_
), ovs_strerror(error
));
892 *carrier
= netdev
->carrier
;
894 ovs_mutex_unlock(&netdev
->mutex
);
900 convert_stats_system(struct netdev_stats
*stats
, const struct if_data
*ifd
)
903 * note: UINT64_MAX means unsupported
905 stats
->rx_packets
= ifd
->ifi_ipackets
;
906 stats
->tx_packets
= ifd
->ifi_opackets
;
907 stats
->rx_bytes
= ifd
->ifi_obytes
;
908 stats
->tx_bytes
= ifd
->ifi_ibytes
;
909 stats
->rx_errors
= ifd
->ifi_ierrors
;
910 stats
->tx_errors
= ifd
->ifi_oerrors
;
911 stats
->rx_dropped
= ifd
->ifi_iqdrops
;
912 stats
->tx_dropped
= UINT64_MAX
;
913 stats
->multicast
= ifd
->ifi_imcasts
;
914 stats
->collisions
= ifd
->ifi_collisions
;
915 stats
->rx_length_errors
= UINT64_MAX
;
916 stats
->rx_over_errors
= UINT64_MAX
;
917 stats
->rx_crc_errors
= UINT64_MAX
;
918 stats
->rx_frame_errors
= UINT64_MAX
;
919 stats
->rx_fifo_errors
= UINT64_MAX
;
920 stats
->rx_missed_errors
= UINT64_MAX
;
921 stats
->tx_aborted_errors
= UINT64_MAX
;
922 stats
->tx_carrier_errors
= UINT64_MAX
;
923 stats
->tx_fifo_errors
= UINT64_MAX
;
924 stats
->tx_heartbeat_errors
= UINT64_MAX
;
925 stats
->tx_window_errors
= UINT64_MAX
;
929 convert_stats_tap(struct netdev_stats
*stats
, const struct if_data
*ifd
)
932 * Similar to convert_stats_system but swapping rxq and tx
933 * because 'ifd' is stats for the network interface side of the
934 * tap device and what the caller wants is one for the character
937 * note: UINT64_MAX means unsupported
939 stats
->rx_packets
= ifd
->ifi_opackets
;
940 stats
->tx_packets
= ifd
->ifi_ipackets
;
941 stats
->rx_bytes
= ifd
->ifi_ibytes
;
942 stats
->tx_bytes
= ifd
->ifi_obytes
;
943 stats
->rx_errors
= ifd
->ifi_oerrors
;
944 stats
->tx_errors
= ifd
->ifi_ierrors
;
945 stats
->rx_dropped
= UINT64_MAX
;
946 stats
->tx_dropped
= ifd
->ifi_iqdrops
;
947 stats
->multicast
= ifd
->ifi_omcasts
;
948 stats
->collisions
= UINT64_MAX
;
949 stats
->rx_length_errors
= UINT64_MAX
;
950 stats
->rx_over_errors
= UINT64_MAX
;
951 stats
->rx_crc_errors
= UINT64_MAX
;
952 stats
->rx_frame_errors
= UINT64_MAX
;
953 stats
->rx_fifo_errors
= UINT64_MAX
;
954 stats
->rx_missed_errors
= UINT64_MAX
;
955 stats
->tx_aborted_errors
= UINT64_MAX
;
956 stats
->tx_carrier_errors
= UINT64_MAX
;
957 stats
->tx_fifo_errors
= UINT64_MAX
;
958 stats
->tx_heartbeat_errors
= UINT64_MAX
;
959 stats
->tx_window_errors
= UINT64_MAX
;
963 convert_stats(const struct netdev
*netdev
, struct netdev_stats
*stats
,
964 const struct if_data
*ifd
)
966 if (netdev_bsd_cast(netdev
)->tap_fd
== -1) {
967 convert_stats_system(stats
, ifd
);
969 convert_stats_tap(stats
, ifd
);
973 /* Retrieves current device stats for 'netdev'. */
975 netdev_bsd_get_stats(const struct netdev
*netdev_
, struct netdev_stats
*stats
)
977 #if defined(__FreeBSD__)
981 struct ifmibdata ifmd
;
986 mib
[2] = NETLINK_GENERIC
;
987 mib
[3] = IFMIB_SYSTEM
;
988 mib
[4] = IFMIB_IFCOUNT
;
990 len
= sizeof(if_count
);
992 if (sysctl(mib
, 5, &if_count
, &len
, (void *)0, 0) == -1) {
993 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
994 netdev_get_name(netdev_
), ovs_strerror(errno
));
998 mib
[5] = IFDATA_GENERAL
;
999 mib
[3] = IFMIB_IFDATA
;
1001 for (i
= 1; i
<= if_count
; i
++) {
1003 if (sysctl(mib
, 6, &ifmd
, &len
, (void *)0, 0) == -1) {
1004 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
1005 netdev_get_name(netdev_
), ovs_strerror(errno
));
1007 } else if (!strcmp(ifmd
.ifmd_name
, netdev_get_name(netdev_
))) {
1008 convert_stats(netdev_
, stats
, &ifmd
.ifmd_data
);
1014 #elif defined(__NetBSD__)
1015 struct ifdatareq ifdr
;
1018 memset(&ifdr
, 0, sizeof(ifdr
));
1019 ovs_strlcpy(ifdr
.ifdr_name
, netdev_get_kernel_name(netdev_
),
1020 sizeof(ifdr
.ifdr_name
));
1021 error
= af_link_ioctl(SIOCGIFDATA
, &ifdr
);
1023 convert_stats(netdev_
, stats
, &ifdr
.ifdr_data
);
1027 #error not implemented
1032 netdev_bsd_parse_media(int media
)
1034 uint32_t supported
= 0;
1035 bool half_duplex
= media
& IFM_HDX
? true : false;
1037 switch (IFM_SUBTYPE(media
)) {
1042 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
1043 supported
|= NETDEV_F_COPPER
;
1047 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
1048 supported
|= NETDEV_F_FIBER
;
1055 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
1056 supported
|= NETDEV_F_COPPER
;
1060 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
1061 supported
|= NETDEV_F_FIBER
;
1066 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
1067 supported
|= NETDEV_F_COPPER
;
1072 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
1073 supported
|= NETDEV_F_FIBER
;
1077 supported
|= NETDEV_F_10GB_FD
;
1078 supported
|= NETDEV_F_COPPER
;
1083 supported
|= NETDEV_F_10GB_FD
;
1084 supported
|= NETDEV_F_FIBER
;
1091 if (IFM_SUBTYPE(media
) == IFM_AUTO
) {
1092 supported
|= NETDEV_F_AUTONEG
;
1095 if (media & IFM_ETH_FMASK) {
1096 supported |= NETDEV_F_PAUSE;
1104 * Stores the features supported by 'netdev' into each of '*current',
1105 * '*advertised', '*supported', and '*peer' that are non-null. Each value is a
1106 * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if
1107 * successful, otherwise a positive errno value. On failure, all of the
1108 * passed-in values are set to 0.
1111 netdev_bsd_get_features(const struct netdev
*netdev
,
1112 enum netdev_features
*current
, uint32_t *advertised
,
1113 enum netdev_features
*supported
, uint32_t *peer
)
1115 struct ifmediareq ifmr
;
1121 /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */
1123 memset(&ifmr
, 0, sizeof(ifmr
));
1124 ovs_strlcpy(ifmr
.ifm_name
, netdev_get_name(netdev
), sizeof ifmr
.ifm_name
);
1126 /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the
1127 * number of supported modes, and a second with a buffer to retrieve
1129 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
1131 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1132 netdev_get_name(netdev
), ovs_strerror(error
));
1136 media_list
= xcalloc(ifmr
.ifm_count
, sizeof(int));
1137 ifmr
.ifm_ulist
= media_list
;
1139 if (IFM_TYPE(ifmr
.ifm_current
) != IFM_ETHER
) {
1140 VLOG_DBG_RL(&rl
, "%s: doesn't appear to be ethernet",
1141 netdev_get_name(netdev
));
1146 error
= af_inet_ioctl(SIOCGIFMEDIA
, &ifmr
);
1148 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1149 netdev_get_name(netdev
), ovs_strerror(error
));
1153 /* Current settings. */
1154 *current
= netdev_bsd_parse_media(ifmr
.ifm_active
);
1156 /* Advertised features. */
1157 *advertised
= netdev_bsd_parse_media(ifmr
.ifm_current
);
1159 /* Supported features. */
1161 for (i
= 0; i
< ifmr
.ifm_count
; i
++) {
1162 *supported
|= netdev_bsd_parse_media(ifmr
.ifm_ulist
[i
]);
1165 /* Peer advertisements. */
1166 *peer
= 0; /* XXX */
1175 * If 'netdev' has an assigned IPv4 address, sets '*in4' to that address and
1176 * '*netmask' to its netmask and returns true. Otherwise, returns false.
1179 netdev_bsd_get_in4(const struct netdev
*netdev_
, struct in_addr
*in4
,
1180 struct in_addr
*netmask
)
1182 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1185 ovs_mutex_lock(&netdev
->mutex
);
1186 if (!(netdev
->cache_valid
& VALID_IN4
)) {
1189 ifr
.ifr_addr
.sa_family
= AF_INET
;
1190 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
1191 SIOCGIFADDR
, "SIOCGIFADDR");
1193 const struct sockaddr_in
*sin
;
1195 sin
= ALIGNED_CAST(struct sockaddr_in
*, &ifr
.ifr_addr
);
1196 netdev
->in4
= sin
->sin_addr
;
1197 netdev
->cache_valid
|= VALID_IN4
;
1198 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
1199 SIOCGIFNETMASK
, "SIOCGIFNETMASK");
1201 *netmask
= sin
->sin_addr
;
1207 *netmask
= netdev
->netmask
;
1209 ovs_mutex_unlock(&netdev
->mutex
);
1211 return error
? error
: in4
->s_addr
== INADDR_ANY
? EADDRNOTAVAIL
: 0;
1215 * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If
1216 * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a
1217 * positive errno value.
1220 netdev_bsd_set_in4(struct netdev
*netdev_
, struct in_addr addr
,
1221 struct in_addr mask
)
1223 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1226 ovs_mutex_lock(&netdev
->mutex
);
1227 error
= do_set_addr(netdev_
, SIOCSIFADDR
, "SIOCSIFADDR", addr
);
1229 if (addr
.s_addr
!= INADDR_ANY
) {
1230 error
= do_set_addr(netdev_
, SIOCSIFNETMASK
,
1231 "SIOCSIFNETMASK", mask
);
1233 netdev
->cache_valid
|= VALID_IN4
;
1235 netdev
->netmask
= mask
;
1238 netdev_change_seq_changed(netdev_
);
1240 ovs_mutex_unlock(&netdev
->mutex
);
1246 netdev_bsd_get_in6(const struct netdev
*netdev_
, struct in6_addr
*in6
)
1248 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1249 if (!(netdev
->cache_valid
& VALID_IN6
)) {
1250 struct ifaddrs
*ifa
, *head
;
1251 struct sockaddr_in6
*sin6
;
1252 const char *netdev_name
= netdev_get_name(netdev_
);
1254 if (getifaddrs(&head
) != 0) {
1255 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1256 ovs_strerror(errno
));
1260 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1261 if (ifa
->ifa_addr
->sa_family
== AF_INET6
&&
1262 !strcmp(ifa
->ifa_name
, netdev_name
)) {
1263 sin6
= ALIGNED_CAST(struct sockaddr_in6
*, ifa
->ifa_addr
);
1265 memcpy(&netdev
->in6
, &sin6
->sin6_addr
, sin6
->sin6_len
);
1266 netdev
->cache_valid
|= VALID_IN6
;
1273 return EADDRNOTAVAIL
;
1279 #if defined(__NetBSD__)
1281 netdev_bsd_kernel_name_to_ovs_name(const char *kernel_name
)
1283 char *ovs_name
= NULL
;
1284 struct shash device_shash
;
1285 struct shash_node
*node
;
1287 shash_init(&device_shash
);
1288 netdev_get_devices(&netdev_tap_class
, &device_shash
);
1289 SHASH_FOR_EACH(node
, &device_shash
) {
1290 struct netdev
*netdev
= node
->data
;
1291 struct netdev_bsd
* const dev
= netdev_bsd_cast(netdev
);
1293 if (!strcmp(dev
->kernel_name
, kernel_name
)) {
1295 ovs_name
= xstrdup(netdev_get_name(&dev
->up
));
1297 netdev_close(netdev
);
1299 shash_destroy(&device_shash
);
1301 return ovs_name
? ovs_name
: xstrdup(kernel_name
);
1306 netdev_bsd_get_next_hop(const struct in_addr
*host OVS_UNUSED
,
1307 struct in_addr
*next_hop OVS_UNUSED
,
1308 char **netdev_name OVS_UNUSED
)
1310 #if defined(__NetBSD__)
1312 struct sockaddr_in sin
;
1313 struct sockaddr_dl sdl
;
1320 struct rt_msghdr
*rtm
= &buf
.h
;
1321 const pid_t pid
= getpid();
1324 bool gateway
= false;
1325 char *ifname
= NULL
;
1328 memset(next_hop
, 0, sizeof(*next_hop
));
1329 *netdev_name
= NULL
;
1331 memset(&sin
, 0, sizeof(sin
));
1332 sin
.sin_len
= sizeof(sin
);
1333 sin
.sin_family
= AF_INET
;
1335 sin
.sin_addr
= *host
;
1337 memset(&sdl
, 0, sizeof(sdl
));
1338 sdl
.sdl_len
= sizeof(sdl
);
1339 sdl
.sdl_family
= AF_LINK
;
1341 s
= socket(PF_ROUTE
, SOCK_RAW
, 0);
1342 memset(&buf
, 0, sizeof(buf
));
1343 rtm
->rtm_flags
= RTF_HOST
|RTF_UP
;
1344 rtm
->rtm_version
= RTM_VERSION
;
1345 rtm
->rtm_addrs
= RTA_DST
|RTA_IFP
;
1346 cp
= (void *)&buf
.space
;
1347 memcpy(cp
, &sin
, sizeof(sin
));
1348 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sin
);
1349 memcpy(cp
, &sdl
, sizeof(sdl
));
1350 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sdl
);
1351 rtm
->rtm_msglen
= cp
- (char *)(void *)rtm
;
1352 rtm
->rtm_seq
= ++seq
;
1353 rtm
->rtm_type
= RTM_GET
;
1355 write(s
, rtm
, rtm
->rtm_msglen
);
1356 memset(&buf
, 0, sizeof(buf
));
1358 ssz
= read(s
, &buf
, sizeof(buf
));
1359 } while (ssz
> 0 && (rtm
->rtm_seq
!= seq
|| rtm
->rtm_pid
!= pid
));
1360 saved_errno
= errno
;
1366 return EPIPE
; /* XXX */
1368 cp
= (void *)&buf
.space
;
1369 for (i
= 1; i
; i
<<= 1) {
1370 if ((rtm
->rtm_addrs
& i
) != 0) {
1371 const struct sockaddr
*sa
= (const void *)cp
;
1373 if ((i
== RTA_GATEWAY
) && sa
->sa_family
== AF_INET
) {
1374 const struct sockaddr_in
* const sin
=
1375 ALIGNED_CAST(const struct sockaddr_in
*, sa
);
1377 *next_hop
= sin
->sin_addr
;
1380 if ((i
== RTA_IFP
) && sa
->sa_family
== AF_LINK
) {
1381 const struct sockaddr_dl
* const sdl
=
1382 ALIGNED_CAST(const struct sockaddr_dl
*, sa
);
1385 kernel_name
= xmemdup0(sdl
->sdl_data
, sdl
->sdl_nlen
);
1386 ifname
= netdev_bsd_kernel_name_to_ovs_name(kernel_name
);
1392 if (ifname
== NULL
) {
1398 *netdev_name
= ifname
;
1399 VLOG_DBG("host " IP_FMT
" next-hop " IP_FMT
" if %s",
1400 IP_ARGS(host
->s_addr
), IP_ARGS(next_hop
->s_addr
), *netdev_name
);
1408 netdev_bsd_arp_lookup(const struct netdev
*netdev OVS_UNUSED
,
1409 ovs_be32 ip OVS_UNUSED
,
1410 uint8_t mac
[ETH_ADDR_LEN
] OVS_UNUSED
)
1412 #if defined(__NetBSD__)
1413 const struct rt_msghdr
*rtm
;
1426 mib
[4] = NET_RT_FLAGS
;
1427 mib
[5] = RTF_LLINFO
;
1428 if (sysctl(mib
, 6, NULL
, &needed
, NULL
, 0) == -1) {
1432 buf
= xmalloc(needed
);
1433 if (sysctl(mib
, 6, buf
, &needed
, NULL
, 0) == -1) {
1438 for (cp
= buf
; cp
< ep
; cp
+= rtm
->rtm_msglen
) {
1439 const struct sockaddr_inarp
*sina
;
1440 const struct sockaddr_dl
*sdl
;
1442 rtm
= (const void *)cp
;
1443 sina
= (const void *)(rtm
+ 1);
1444 if (ip
!= sina
->sin_addr
.s_addr
) {
1447 sdl
= (const void *)
1448 ((const char *)(const void *)sina
+ RT_ROUNDUP(sina
->sin_len
));
1449 if (sdl
->sdl_alen
== ETH_ADDR_LEN
) {
1450 memcpy(mac
, &sdl
->sdl_data
[sdl
->sdl_nlen
], ETH_ADDR_LEN
);
1465 make_in4_sockaddr(struct sockaddr
*sa
, struct in_addr addr
)
1467 struct sockaddr_in sin
;
1468 memset(&sin
, 0, sizeof sin
);
1469 sin
.sin_family
= AF_INET
;
1470 sin
.sin_addr
= addr
;
1473 memset(sa
, 0, sizeof *sa
);
1474 memcpy(sa
, &sin
, sizeof sin
);
1478 do_set_addr(struct netdev
*netdev
,
1479 unsigned long ioctl_nr
, const char *ioctl_name
,
1480 struct in_addr addr
)
1483 make_in4_sockaddr(&ifr
.ifr_addr
, addr
);
1484 return af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev
), &ifr
, ioctl_nr
,
1489 nd_to_iff_flags(enum netdev_flags nd
)
1492 if (nd
& NETDEV_UP
) {
1495 if (nd
& NETDEV_PROMISC
) {
1497 #if defined(IFF_PPROMISC)
1498 iff
|= IFF_PPROMISC
;
1501 if (nd
& NETDEV_LOOPBACK
) {
1502 iff
|= IFF_LOOPBACK
;
1508 iff_to_nd_flags(int iff
)
1510 enum netdev_flags nd
= 0;
1514 if (iff
& IFF_PROMISC
) {
1515 nd
|= NETDEV_PROMISC
;
1517 if (iff
& IFF_LOOPBACK
) {
1518 nd
|= NETDEV_LOOPBACK
;
1524 netdev_bsd_update_flags(struct netdev
*netdev_
, enum netdev_flags off
,
1525 enum netdev_flags on
, enum netdev_flags
*old_flagsp
)
1527 int old_flags
, new_flags
;
1530 error
= get_flags(netdev_
, &old_flags
);
1532 *old_flagsp
= iff_to_nd_flags(old_flags
);
1533 new_flags
= (old_flags
& ~nd_to_iff_flags(off
)) | nd_to_iff_flags(on
);
1534 if (new_flags
!= old_flags
) {
1535 error
= set_flags(netdev_get_kernel_name(netdev_
), new_flags
);
1536 netdev_change_seq_changed(netdev_
);
1542 /* Linux has also different GET_STATS, SET_STATS,
1545 #define NETDEV_BSD_CLASS(NAME, CONSTRUCT, \
1555 netdev_bsd_destruct, \
1556 netdev_bsd_dealloc, \
1557 NULL, /* get_config */ \
1558 NULL, /* set_config */ \
1559 NULL, /* get_tunnel_config */ \
1560 NULL, /* build header */ \
1561 NULL, /* push header */ \
1562 NULL, /* pop header */ \
1563 NULL, /* get_numa_id */ \
1564 NULL, /* set_multiq */ \
1567 netdev_bsd_send_wait, \
1569 netdev_bsd_set_etheraddr, \
1570 netdev_bsd_get_etheraddr, \
1571 netdev_bsd_get_mtu, \
1572 NULL, /* set_mtu */ \
1573 netdev_bsd_get_ifindex, \
1574 netdev_bsd_get_carrier, \
1575 NULL, /* get_carrier_resets */ \
1576 NULL, /* set_miimon_interval */ \
1577 netdev_bsd_get_stats, \
1580 NULL, /* set_advertisement */ \
1581 NULL, /* set_policing */ \
1582 NULL, /* get_qos_type */ \
1583 NULL, /* get_qos_capabilities */ \
1584 NULL, /* get_qos */ \
1585 NULL, /* set_qos */ \
1586 NULL, /* get_queue */ \
1587 NULL, /* set_queue */ \
1588 NULL, /* delete_queue */ \
1589 NULL, /* get_queue_stats */ \
1590 NULL, /* queue_dump_start */ \
1591 NULL, /* queue_dump_next */ \
1592 NULL, /* queue_dump_done */ \
1593 NULL, /* dump_queue_stats */ \
1595 netdev_bsd_get_in4, \
1596 netdev_bsd_set_in4, \
1597 netdev_bsd_get_in6, \
1598 NULL, /* add_router */ \
1599 netdev_bsd_get_next_hop, \
1600 NULL, /* get_status */ \
1601 netdev_bsd_arp_lookup, /* arp_lookup */ \
1603 netdev_bsd_update_flags, \
1605 netdev_bsd_rxq_alloc, \
1606 netdev_bsd_rxq_construct, \
1607 netdev_bsd_rxq_destruct, \
1608 netdev_bsd_rxq_dealloc, \
1609 netdev_bsd_rxq_recv, \
1610 netdev_bsd_rxq_wait, \
1611 netdev_bsd_rxq_drain, \
1614 const struct netdev_class netdev_bsd_class
=
1617 netdev_bsd_construct_system
,
1618 netdev_bsd_get_features
);
1620 const struct netdev_class netdev_tap_class
=
1623 netdev_bsd_construct_tap
,
1624 netdev_bsd_get_features
);
1628 destroy_tap(int fd
, const char *name
)
1633 strcpy(ifr
.ifr_name
, name
);
1634 /* XXX What to do if this call fails? */
1635 af_inet_ioctl(SIOCIFDESTROY
, &ifr
);
1639 get_flags(const struct netdev
*netdev
, int *flags
)
1644 error
= af_inet_ifreq_ioctl(netdev_get_kernel_name(netdev
), &ifr
,
1645 SIOCGIFFLAGS
, "SIOCGIFFLAGS");
1647 *flags
= ifr_get_flags(&ifr
);
1653 set_flags(const char *name
, int flags
)
1657 ifr_set_flags(&ifr
, flags
);
1659 return af_inet_ifreq_ioctl(name
, &ifr
, SIOCSIFFLAGS
, "SIOCSIFFLAGS");
1663 get_ifindex(const struct netdev
*netdev_
, int *ifindexp
)
1665 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1667 if (!(netdev
->cache_valid
& VALID_IFINDEX
)) {
1668 int ifindex
= if_nametoindex(netdev_get_name(netdev_
));
1672 netdev
->cache_valid
|= VALID_IFINDEX
;
1673 netdev
->ifindex
= ifindex
;
1675 *ifindexp
= netdev
->ifindex
;
1680 get_etheraddr(const char *netdev_name
, uint8_t ea
[ETH_ADDR_LEN
])
1682 struct ifaddrs
*head
;
1683 struct ifaddrs
*ifa
;
1684 struct sockaddr_dl
*sdl
;
1686 if (getifaddrs(&head
) != 0) {
1687 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1688 ovs_strerror(errno
));
1692 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1693 if (ifa
->ifa_addr
->sa_family
== AF_LINK
) {
1694 if (!strcmp(ifa
->ifa_name
, netdev_name
)) {
1695 sdl
= ALIGNED_CAST(struct sockaddr_dl
*, ifa
->ifa_addr
);
1697 memcpy(ea
, LLADDR(sdl
), sdl
->sdl_alen
);
1705 VLOG_ERR("could not find ethernet address for %s device", netdev_name
);
1711 set_etheraddr(const char *netdev_name OVS_UNUSED
, int hwaddr_family OVS_UNUSED
,
1712 int hwaddr_len OVS_UNUSED
,
1713 const uint8_t mac
[ETH_ADDR_LEN
] OVS_UNUSED
)
1715 #if defined(__FreeBSD__)
1719 memset(&ifr
, 0, sizeof ifr
);
1720 ovs_strlcpy(ifr
.ifr_name
, netdev_name
, sizeof ifr
.ifr_name
);
1721 ifr
.ifr_addr
.sa_family
= hwaddr_family
;
1722 ifr
.ifr_addr
.sa_len
= hwaddr_len
;
1723 memcpy(ifr
.ifr_addr
.sa_data
, mac
, hwaddr_len
);
1724 error
= af_inet_ioctl(SIOCSIFLLADDR
, &ifr
);
1726 VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s",
1727 netdev_name
, ovs_strerror(error
));
1731 #elif defined(__NetBSD__)
1732 struct if_laddrreq req
;
1733 struct sockaddr_dl
*sdl
;
1734 struct sockaddr_storage oldaddr
;
1738 * get the old address, add new one, and then remove old one.
1741 if (hwaddr_len
!= ETH_ADDR_LEN
) {
1742 /* just to be safe about sockaddr storage size */
1745 memset(&req
, 0, sizeof(req
));
1746 ovs_strlcpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1747 req
.addr
.ss_len
= sizeof(req
.addr
);
1748 req
.addr
.ss_family
= hwaddr_family
;
1749 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1750 sdl
->sdl_alen
= hwaddr_len
;
1752 error
= af_link_ioctl(SIOCGLIFADDR
, &req
);
1756 if (!memcmp(&sdl
->sdl_data
[sdl
->sdl_nlen
], mac
, hwaddr_len
)) {
1761 memset(&req
, 0, sizeof(req
));
1762 ovs_strlcpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1763 req
.flags
= IFLR_ACTIVE
;
1764 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1765 sdl
->sdl_len
= offsetof(struct sockaddr_dl
, sdl_data
) + hwaddr_len
;
1766 sdl
->sdl_alen
= hwaddr_len
;
1767 sdl
->sdl_family
= hwaddr_family
;
1768 memcpy(sdl
->sdl_data
, mac
, hwaddr_len
);
1769 error
= af_link_ioctl(SIOCALIFADDR
, &req
);
1774 memset(&req
, 0, sizeof(req
));
1775 ovs_strlcpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1777 return af_link_ioctl(SIOCDLIFADDR
, &req
);
1779 #error not implemented
1784 ifr_get_flags(const struct ifreq
*ifr
)
1786 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1787 return (ifr
->ifr_flagshigh
<< 16) | (ifr
->ifr_flags
& 0xffff);
1789 return ifr
->ifr_flags
;
1794 ifr_set_flags(struct ifreq
*ifr
, int flags
)
1796 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1797 ifr
->ifr_flags
= flags
& 0xffff;
1798 ifr
->ifr_flagshigh
= flags
>> 16;
1800 ifr
->ifr_flags
= flags
;
1804 #if defined(__NetBSD__)
1805 /* Calls ioctl() on an AF_LINK sock, passing the specified 'command' and
1806 * 'arg'. Returns 0 if successful, otherwise a positive errno value. */
1808 af_link_ioctl(unsigned long command
, const void *arg
)
1810 static struct ovsthread_once once
= OVSTHREAD_ONCE_INITIALIZER
;
1813 if (ovsthread_once_start(&once
)) {
1814 sock
= socket(AF_LINK
, SOCK_DGRAM
, 0);
1817 VLOG_ERR("failed to create link socket: %s", ovs_strerror(errno
));
1819 ovsthread_once_done(&once
);
1822 return (sock
< 0 ? -sock
1823 : ioctl(sock
, command
, arg
) == -1 ? errno