2 * Copyright (c) 2011 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>
49 #include "dynamic-string.h"
50 #include "fatal-signal.h"
52 #include "openflow/openflow.h"
54 #include "poll-loop.h"
55 #include "socket-util.h"
61 VLOG_DEFINE_THIS_MODULE(netdev_bsd
);
64 struct netdev_rx_bsd
{
67 /* Packet capture descriptor for a system network device.
68 * For a tap device this is NULL. */
71 /* Selectable file descriptor for the network device.
72 * This descriptor will be used for polling operations. */
76 static const struct netdev_rx_class netdev_rx_bsd_class
;
80 unsigned int cache_valid
;
81 unsigned int change_seq
;
84 uint8_t etheraddr
[ETH_ADDR_LEN
];
86 struct in_addr netmask
;
91 int tap_fd
; /* TAP character device, if any, otherwise -1. */
93 /* Used for sending packets on non-tap devices. */
102 VALID_IFINDEX
= 1 << 0,
103 VALID_ETHERADDR
= 1 << 1,
107 VALID_CARRIER
= 1 << 5
110 /* An AF_INET socket (used for ioctl operations). */
111 static int af_inet_sock
= -1;
113 #if defined(__NetBSD__)
114 /* AF_LINK socket used for netdev_bsd_get_stats and set_etheraddr */
115 static int af_link_sock
= -1;
116 #endif /* defined(__NetBSD__) */
118 #define PCAP_SNAPLEN 2048
122 * Notifier used to invalidate device informations in case of status change.
124 * It will be registered with a 'rtbsd_notifier_register()' when the first
125 * device will be created with the call of either 'netdev_bsd_tap_create()' or
126 * 'netdev_bsd_system_create()'.
128 * The callback associated with this notifier ('netdev_bsd_cache_cb()') will
129 * invalidate cached information about the device.
131 static struct rtbsd_notifier netdev_bsd_cache_notifier
;
132 static int cache_notifier_refcount
;
134 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(5, 20);
136 static int netdev_bsd_do_ioctl(const char *, struct ifreq
*, unsigned long cmd
,
137 const char *cmd_name
);
138 static void destroy_tap(int fd
, const char *name
);
139 static int get_flags(const struct netdev
*, int *flagsp
);
140 static int set_flags(const char *, int flags
);
141 static int do_set_addr(struct netdev
*netdev
,
142 int ioctl_nr
, const char *ioctl_name
,
143 struct in_addr addr
);
144 static int get_etheraddr(const char *netdev_name
, uint8_t ea
[ETH_ADDR_LEN
]);
145 static int set_etheraddr(const char *netdev_name
, int hwaddr_family
,
146 int hwaddr_len
, const uint8_t[ETH_ADDR_LEN
]);
147 static int get_ifindex(const struct netdev
*, int *ifindexp
);
149 static int ifr_get_flags(const struct ifreq
*);
150 static void ifr_set_flags(struct ifreq
*, int flags
);
152 static int netdev_bsd_init(void);
155 is_netdev_bsd_class(const struct netdev_class
*netdev_class
)
157 return netdev_class
->init
== netdev_bsd_init
;
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_rx_bsd
*
168 netdev_rx_bsd_cast(const struct netdev_rx
*rx
)
170 netdev_rx_assert_class(rx
, &netdev_rx_bsd_class
);
171 return CONTAINER_OF(rx
, struct netdev_rx_bsd
, up
);
175 netdev_get_kernel_name(const struct netdev
*netdev
)
177 return netdev_bsd_cast(netdev
)->kernel_name
;
180 /* Initialize the AF_INET socket used for ioctl operations */
182 netdev_bsd_init(void)
184 static int status
= -1;
186 if (status
>= 0) { /* already initialized */
190 af_inet_sock
= socket(AF_INET
, SOCK_DGRAM
, 0);
191 status
= af_inet_sock
>= 0 ? 0 : errno
;
193 VLOG_ERR("failed to create inet socket: %s", ovs_strerror(status
));
197 #if defined(__NetBSD__)
198 af_link_sock
= socket(AF_LINK
, SOCK_DGRAM
, 0);
199 status
= af_link_sock
>= 0 ? 0 : errno
;
201 VLOG_ERR("failed to create link socket: %s", ovs_strerror(status
));
205 #endif /* defined(__NetBSD__) */
211 * Perform periodic work needed by netdev. In BSD netdevs it checks for any
212 * interface status changes, and eventually calls all the user callbacks.
217 rtbsd_notifier_run();
221 * Arranges for poll_block() to wake up if the "run" member function needs to
225 netdev_bsd_wait(void)
227 rtbsd_notifier_wait();
231 netdev_bsd_changed(struct netdev_bsd
*dev
)
234 if (!dev
->change_seq
) {
239 /* Invalidate cache in case of interface status change. */
241 netdev_bsd_cache_cb(const struct rtbsd_change
*change
,
242 void *aux OVS_UNUSED
)
244 struct netdev_bsd
*dev
;
247 struct netdev
*base_dev
= netdev_from_name(change
->if_name
);
250 const struct netdev_class
*netdev_class
=
251 netdev_get_class(base_dev
);
253 if (is_netdev_bsd_class(netdev_class
)) {
254 dev
= netdev_bsd_cast(base_dev
);
255 dev
->cache_valid
= 0;
256 netdev_bsd_changed(dev
);
258 netdev_close(base_dev
);
262 * XXX the API is lacking, we should be able to iterate on the list of
263 * netdevs without having to store the info in a temp shash.
265 struct shash device_shash
;
266 struct shash_node
*node
;
268 shash_init(&device_shash
);
269 netdev_get_devices(&netdev_bsd_class
, &device_shash
);
270 SHASH_FOR_EACH (node
, &device_shash
) {
271 struct netdev
*netdev
= node
->data
;
272 dev
= netdev_bsd_cast(netdev
);
273 dev
->cache_valid
= 0;
274 netdev_bsd_changed(dev
);
275 netdev_close(netdev
);
277 shash_destroy(&device_shash
);
282 cache_notifier_ref(void)
286 if (!cache_notifier_refcount
) {
287 ret
= rtbsd_notifier_register(&netdev_bsd_cache_notifier
,
288 netdev_bsd_cache_cb
, NULL
);
293 cache_notifier_refcount
++;
298 cache_notifier_unref(void)
300 cache_notifier_refcount
--;
301 if (cache_notifier_refcount
== 0) {
302 rtbsd_notifier_unregister(&netdev_bsd_cache_notifier
);
307 /* Allocate a netdev_bsd structure */
309 netdev_bsd_create_system(const struct netdev_class
*class, const char *name
,
310 struct netdev
**netdevp
)
312 struct netdev_bsd
*netdev
;
313 enum netdev_flags flags
;
316 error
= cache_notifier_ref();
321 netdev
= xzalloc(sizeof *netdev
);
322 netdev
->change_seq
= 1;
323 netdev_init(&netdev
->up
, name
, class);
325 netdev
->kernel_name
= xstrdup(name
);
327 /* Verify that the netdev really exists by attempting to read its flags */
328 error
= netdev_get_flags(&netdev
->up
, &flags
);
329 if (error
== ENXIO
) {
330 free(netdev
->kernel_name
);
331 netdev_uninit(&netdev
->up
, false);
333 cache_notifier_unref();
337 *netdevp
= &netdev
->up
;
342 * Allocate a netdev_bsd structure with 'tap' class.
345 netdev_bsd_create_tap(const struct netdev_class
*class, const char *name
,
346 struct netdev
**netdevp
)
348 struct netdev_bsd
*netdev
= NULL
;
351 char *kernel_name
= NULL
;
353 error
= cache_notifier_ref();
358 /* allocate the device structure and set the internal flag */
359 netdev
= xzalloc(sizeof *netdev
);
361 memset(&ifr
, 0, sizeof(ifr
));
363 /* Create a tap device by opening /dev/tap. The TAPGIFNAME ioctl is used
364 * to retrieve the name of the tap device. */
365 netdev
->tap_fd
= open("/dev/tap", O_RDWR
);
366 netdev
->change_seq
= 1;
367 if (netdev
->tap_fd
< 0) {
369 VLOG_WARN("opening \"/dev/tap\" failed: %s", ovs_strerror(error
));
370 goto error_unref_notifier
;
373 /* Retrieve tap name (e.g. tap0) */
374 if (ioctl(netdev
->tap_fd
, TAPGIFNAME
, &ifr
) == -1) {
375 /* XXX Need to destroy the device? */
377 close(netdev
->tap_fd
);
378 goto error_unref_notifier
;
381 /* Change the name of the tap device */
382 #if defined(SIOCSIFNAME)
383 ifr
.ifr_data
= (void *)name
;
384 if (ioctl(af_inet_sock
, SIOCSIFNAME
, &ifr
) == -1) {
386 destroy_tap(netdev
->tap_fd
, ifr
.ifr_name
);
387 goto error_unref_notifier
;
389 kernel_name
= xstrdup(name
);
392 * NetBSD doesn't support inteface renaming.
394 VLOG_INFO("tap %s is created for bridge %s", ifr
.ifr_name
, name
);
395 kernel_name
= xstrdup(ifr
.ifr_name
);
398 /* set non-blocking. */
399 error
= set_nonblocking(netdev
->tap_fd
);
401 destroy_tap(netdev
->tap_fd
, kernel_name
);
402 goto error_unref_notifier
;
406 ifr_set_flags(&ifr
, IFF_UP
);
407 strncpy(ifr
.ifr_name
, kernel_name
, sizeof ifr
.ifr_name
);
408 if (ioctl(af_inet_sock
, SIOCSIFFLAGS
, &ifr
) == -1) {
410 destroy_tap(netdev
->tap_fd
, kernel_name
);
411 goto error_unref_notifier
;
414 /* initialize the device structure and
415 * link the structure to its netdev */
416 netdev_init(&netdev
->up
, name
, class);
417 netdev
->kernel_name
= kernel_name
;
418 *netdevp
= &netdev
->up
;
422 error_unref_notifier
:
423 cache_notifier_unref();
431 netdev_bsd_destroy(struct netdev
*netdev_
)
433 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
435 cache_notifier_unref();
437 if (netdev
->tap_fd
>= 0) {
438 destroy_tap(netdev
->tap_fd
, netdev_get_kernel_name(netdev_
));
441 pcap_close(netdev
->pcap
);
443 free(netdev
->kernel_name
);
448 netdev_bsd_open_pcap(const char *name
, pcap_t
**pcapp
, int *fdp
)
450 char errbuf
[PCAP_ERRBUF_SIZE
];
456 /* Open the pcap device. The device is opened in non-promiscuous mode
457 * because the interface flags are manually set by the caller. */
459 pcap
= pcap_open_live(name
, PCAP_SNAPLEN
, 0, 1000, errbuf
);
461 VLOG_ERR_RL(&rl
, "%s: pcap_open_live failed: %s", name
, errbuf
);
465 if (errbuf
[0] != '\0') {
466 VLOG_WARN_RL(&rl
, "%s: pcap_open_live: %s", name
, errbuf
);
469 /* Get the underlying fd. */
470 fd
= pcap_get_selectable_fd(pcap
);
472 VLOG_WARN_RL(&rl
, "%s: no selectable file descriptor", name
);
477 /* Set non-blocking mode. Also the BIOCIMMEDIATE ioctl must be called
478 * on the file descriptor returned by pcap_get_selectable_fd to achieve
479 * a real non-blocking behaviour.*/
480 error
= pcap_setnonblock(pcap
, 1, errbuf
);
486 /* This call assure that reads return immediately upon packet
487 * reception. Otherwise, a read will block until either the kernel
488 * buffer becomes full or a timeout occurs. */
489 if (ioctl(fd
, BIOCIMMEDIATE
, &one
) < 0 ) {
490 VLOG_ERR_RL(&rl
, "ioctl(BIOCIMMEDIATE) on %s device failed: %s",
491 name
, ovs_strerror(errno
));
496 /* Capture only incoming packets. */
497 error
= pcap_setdirection(pcap
, PCAP_D_IN
);
517 netdev_bsd_rx_open(struct netdev
*netdev_
, struct netdev_rx
**rxp
)
519 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
521 struct netdev_rx_bsd
*rx
;
525 if (!strcmp(netdev_get_type(netdev_
), "tap")) {
529 int error
= netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_
),
535 netdev_bsd_changed(netdev
);
538 rx
= xmalloc(sizeof *rx
);
539 netdev_rx_init(&rx
->up
, netdev_
, &netdev_rx_bsd_class
);
540 rx
->pcap_handle
= pcap
;
548 netdev_rx_bsd_destroy(struct netdev_rx
*rx_
)
550 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
552 if (rx
->pcap_handle
) {
553 pcap_close(rx
->pcap_handle
);
558 /* The recv callback of the netdev class returns the number of bytes of the
561 * This can be done by the pcap_next() function. Unfortunately pcap_next() does
562 * not make difference between a missing packet on the capture interface and
563 * an error during the file capture. We can use the pcap_dispatch() function
564 * instead, which is able to distinguish between errors and null packet.
566 * To make pcap_dispatch() returns the number of bytes read from the interface
567 * we need to define the following callback and argument.
576 * This callback will be executed on every captured packet.
578 * If the packet captured by pcap_dispatch() does not fit the pcap buffer,
579 * pcap returns a truncated packet and we follow this behavior.
581 * The argument args->retval is the packet size in bytes.
584 proc_pkt(u_char
*args_
, const struct pcap_pkthdr
*hdr
, const u_char
*packet
)
586 struct pcap_arg
*args
= (struct pcap_arg
*)args_
;
588 if (args
->size
< hdr
->len
) {
589 VLOG_WARN_RL(&rl
, "packet truncated");
590 args
->retval
= args
->size
;
592 args
->retval
= hdr
->len
;
595 /* copy the packet to our buffer */
596 memcpy(args
->data
, packet
, args
->retval
);
600 * This function attempts to receive a packet from the specified network
601 * device. It is assumed that the network device is a system device or a tap
602 * device opened as a system one. In this case the read operation is performed
606 netdev_rx_bsd_recv_pcap(struct netdev_rx_bsd
*rx
, void *data
, size_t size
)
611 /* prepare the pcap argument to store the packet */
616 ret
= pcap_dispatch(rx
->pcap_handle
, 1, proc_pkt
, (u_char
*) &arg
);
619 return arg
.retval
; /* arg.retval < 0 is handled in the caller */
622 if (errno
== EINTR
) {
632 * This function attempts to receive a packet from the specified network
633 * device. It is assumed that the network device is a tap device and
634 * 'rx->fd' is initialized with the tap file descriptor.
637 netdev_rx_bsd_recv_tap(struct netdev_rx_bsd
*rx
, void *data
, size_t size
)
640 ssize_t retval
= read(rx
->fd
, data
, size
);
643 } else if (errno
!= EINTR
) {
644 if (errno
!= EAGAIN
) {
645 VLOG_WARN_RL(&rl
, "error receiving Ethernet packet on %s: %s",
646 ovs_strerror(errno
), netdev_rx_get_name(&rx
->up
));
655 netdev_rx_bsd_recv(struct netdev_rx
*rx_
, void *data
, size_t size
)
657 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
659 return (rx
->pcap_handle
660 ? netdev_rx_bsd_recv_pcap(rx
, data
, size
)
661 : netdev_rx_bsd_recv_tap(rx
, data
, size
));
665 * Registers with the poll loop to wake up from the next call to poll_block()
666 * when a packet is ready to be received with netdev_rx_recv() on 'rx'.
669 netdev_rx_bsd_wait(struct netdev_rx
*rx_
)
671 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
673 poll_fd_wait(rx
->fd
, POLLIN
);
676 /* Discards all packets waiting to be received from 'rx'. */
678 netdev_rx_bsd_drain(struct netdev_rx
*rx_
)
681 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
683 strcpy(ifr
.ifr_name
, netdev_get_kernel_name(netdev_rx_get_netdev(rx_
)));
684 if (ioctl(rx
->fd
, BIOCFLUSH
, &ifr
) == -1) {
685 VLOG_DBG_RL(&rl
, "%s: ioctl(BIOCFLUSH) failed: %s",
686 netdev_rx_get_name(rx_
), ovs_strerror(errno
));
693 * Send a packet on the specified network device. The device could be either a
694 * system or a tap device.
697 netdev_bsd_send(struct netdev
*netdev_
, const void *data
, size_t size
)
699 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
700 const char *name
= netdev_get_name(netdev_
);
702 if (dev
->tap_fd
< 0 && !dev
->pcap
) {
703 int error
= netdev_bsd_open_pcap(name
, &dev
->pcap
, &dev
->fd
);
711 if (dev
->tap_fd
>= 0) {
712 retval
= write(dev
->tap_fd
, data
, size
);
714 retval
= pcap_inject(dev
->pcap
, data
, size
);
717 if (errno
== EINTR
) {
719 } else if (errno
!= EAGAIN
) {
720 VLOG_WARN_RL(&rl
, "error sending Ethernet packet on %s: %s",
721 name
, ovs_strerror(errno
));
724 } else if (retval
!= size
) {
725 VLOG_WARN_RL(&rl
, "sent partial Ethernet packet (%zd bytes of "
726 "%zu) on %s", retval
, size
, name
);
735 * Registers with the poll loop to wake up from the next call to poll_block()
736 * when the packet transmission queue has sufficient room to transmit a packet
737 * with netdev_send().
740 netdev_bsd_send_wait(struct netdev
*netdev_
)
742 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
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();
756 * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful,
757 * otherwise a positive errno value.
760 netdev_bsd_set_etheraddr(struct netdev
*netdev_
,
761 const uint8_t mac
[ETH_ADDR_LEN
])
763 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
766 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)
767 || !eth_addr_equals(netdev
->etheraddr
, mac
)) {
768 error
= set_etheraddr(netdev_get_kernel_name(netdev_
), AF_LINK
,
771 netdev
->cache_valid
|= VALID_ETHERADDR
;
772 memcpy(netdev
->etheraddr
, mac
, ETH_ADDR_LEN
);
773 netdev_bsd_changed(netdev
);
782 * Returns a pointer to 'netdev''s MAC address. The caller must not modify or
783 * free the returned buffer.
786 netdev_bsd_get_etheraddr(const struct netdev
*netdev_
,
787 uint8_t mac
[ETH_ADDR_LEN
])
789 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
791 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)) {
792 int error
= get_etheraddr(netdev_get_kernel_name(netdev_
),
797 netdev
->cache_valid
|= VALID_ETHERADDR
;
799 memcpy(mac
, netdev
->etheraddr
, ETH_ADDR_LEN
);
805 * Returns the maximum size of transmitted (and received) packets on 'netdev',
806 * in bytes, not including the hardware header; thus, this is typically 1500
807 * bytes for Ethernet devices.
810 netdev_bsd_get_mtu(const struct netdev
*netdev_
, int *mtup
)
812 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
814 if (!(netdev
->cache_valid
& VALID_MTU
)) {
818 error
= netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
819 SIOCGIFMTU
, "SIOCGIFMTU");
823 netdev
->mtu
= ifr
.ifr_mtu
;
824 netdev
->cache_valid
|= VALID_MTU
;
832 netdev_bsd_get_ifindex(const struct netdev
*netdev
)
836 error
= get_ifindex(netdev
, &ifindex
);
837 return error
? -error
: ifindex
;
841 netdev_bsd_get_carrier(const struct netdev
*netdev_
, bool *carrier
)
843 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
845 if (!(netdev
->cache_valid
& VALID_CARRIER
)) {
846 struct ifmediareq ifmr
;
848 memset(&ifmr
, 0, sizeof(ifmr
));
849 strncpy(ifmr
.ifm_name
, netdev_get_kernel_name(netdev_
),
850 sizeof ifmr
.ifm_name
);
852 if (ioctl(af_inet_sock
, SIOCGIFMEDIA
, &ifmr
) == -1) {
853 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
854 netdev_get_name(netdev_
), ovs_strerror(errno
));
858 netdev
->carrier
= (ifmr
.ifm_status
& IFM_ACTIVE
) == IFM_ACTIVE
;
859 netdev
->cache_valid
|= VALID_CARRIER
;
861 /* If the interface doesn't report whether the media is active,
862 * just assume it is active. */
863 if ((ifmr
.ifm_status
& IFM_AVALID
) == 0) {
864 netdev
->carrier
= true;
867 *carrier
= netdev
->carrier
;
873 convert_stats(struct netdev_stats
*stats
, const struct if_data
*ifd
)
876 * note: UINT64_MAX means unsupported
878 stats
->rx_packets
= ifd
->ifi_ipackets
;
879 stats
->tx_packets
= ifd
->ifi_opackets
;
880 stats
->rx_bytes
= ifd
->ifi_obytes
;
881 stats
->tx_bytes
= ifd
->ifi_ibytes
;
882 stats
->rx_errors
= ifd
->ifi_ierrors
;
883 stats
->tx_errors
= ifd
->ifi_oerrors
;
884 stats
->rx_dropped
= ifd
->ifi_iqdrops
;
885 stats
->tx_dropped
= UINT64_MAX
;
886 stats
->multicast
= ifd
->ifi_imcasts
;
887 stats
->collisions
= ifd
->ifi_collisions
;
888 stats
->rx_length_errors
= UINT64_MAX
;
889 stats
->rx_over_errors
= UINT64_MAX
;
890 stats
->rx_crc_errors
= UINT64_MAX
;
891 stats
->rx_frame_errors
= UINT64_MAX
;
892 stats
->rx_fifo_errors
= UINT64_MAX
;
893 stats
->rx_missed_errors
= UINT64_MAX
;
894 stats
->tx_aborted_errors
= UINT64_MAX
;
895 stats
->tx_carrier_errors
= UINT64_MAX
;
896 stats
->tx_fifo_errors
= UINT64_MAX
;
897 stats
->tx_heartbeat_errors
= UINT64_MAX
;
898 stats
->tx_window_errors
= UINT64_MAX
;
901 /* Retrieves current device stats for 'netdev'. */
903 netdev_bsd_get_stats(const struct netdev
*netdev_
, struct netdev_stats
*stats
)
905 #if defined(__FreeBSD__)
909 struct ifmibdata ifmd
;
914 mib
[2] = NETLINK_GENERIC
;
915 mib
[3] = IFMIB_SYSTEM
;
916 mib
[4] = IFMIB_IFCOUNT
;
918 len
= sizeof(if_count
);
920 if (sysctl(mib
, 5, &if_count
, &len
, (void *)0, 0) == -1) {
921 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
922 netdev_get_name(netdev_
), ovs_strerror(errno
));
926 mib
[5] = IFDATA_GENERAL
;
927 mib
[3] = IFMIB_IFDATA
;
929 for (i
= 1; i
<= if_count
; i
++) {
931 if (sysctl(mib
, 6, &ifmd
, &len
, (void *)0, 0) == -1) {
932 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
933 netdev_get_name(netdev_
), ovs_strerror(errno
));
935 } else if (!strcmp(ifmd
.ifmd_name
, netdev_get_name(netdev_
))) {
936 convert_stats(stats
, &ifmd
.ifmd_data
);
942 #elif defined(__NetBSD__)
943 struct ifdatareq ifdr
;
947 memset(&ifdr
, 0, sizeof(ifdr
));
948 strncpy(ifdr
.ifdr_name
, netdev_get_kernel_name(netdev_
),
949 sizeof(ifdr
.ifdr_name
));
950 ret
= ioctl(af_link_sock
, SIOCGIFDATA
, &ifdr
);
955 convert_stats(stats
, &ifdr
.ifdr_data
);
958 #error not implemented
963 netdev_bsd_parse_media(int media
)
965 uint32_t supported
= 0;
966 bool half_duplex
= media
& IFM_HDX
? true : false;
968 switch (IFM_SUBTYPE(media
)) {
973 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
974 supported
|= NETDEV_F_COPPER
;
978 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
979 supported
|= NETDEV_F_FIBER
;
986 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
987 supported
|= NETDEV_F_COPPER
;
991 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
992 supported
|= NETDEV_F_FIBER
;
997 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
998 supported
|= NETDEV_F_COPPER
;
1003 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
1004 supported
|= NETDEV_F_FIBER
;
1008 supported
|= NETDEV_F_10GB_FD
;
1009 supported
|= NETDEV_F_COPPER
;
1014 supported
|= NETDEV_F_10GB_FD
;
1015 supported
|= NETDEV_F_FIBER
;
1022 if (IFM_SUBTYPE(media
) == IFM_AUTO
) {
1023 supported
|= NETDEV_F_AUTONEG
;
1026 if (media & IFM_ETH_FMASK) {
1027 supported |= NETDEV_F_PAUSE;
1035 * Stores the features supported by 'netdev' into each of '*current',
1036 * '*advertised', '*supported', and '*peer' that are non-null. Each value is a
1037 * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if
1038 * successful, otherwise a positive errno value. On failure, all of the
1039 * passed-in values are set to 0.
1042 netdev_bsd_get_features(const struct netdev
*netdev
,
1043 enum netdev_features
*current
, uint32_t *advertised
,
1044 enum netdev_features
*supported
, uint32_t *peer
)
1046 struct ifmediareq ifmr
;
1052 /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */
1054 memset(&ifmr
, 0, sizeof(ifmr
));
1055 strncpy(ifmr
.ifm_name
, netdev_get_name(netdev
), sizeof ifmr
.ifm_name
);
1057 /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the
1058 * number of supported modes, and a second with a buffer to retrieve
1060 if (ioctl(af_inet_sock
, SIOCGIFMEDIA
, &ifmr
) == -1) {
1061 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1062 netdev_get_name(netdev
), ovs_strerror(errno
));
1066 media_list
= xcalloc(ifmr
.ifm_count
, sizeof(int));
1067 ifmr
.ifm_ulist
= media_list
;
1069 if (IFM_TYPE(ifmr
.ifm_current
) != IFM_ETHER
) {
1070 VLOG_DBG_RL(&rl
, "%s: doesn't appear to be ethernet",
1071 netdev_get_name(netdev
));
1076 if (ioctl(af_inet_sock
, SIOCGIFMEDIA
, &ifmr
) == -1) {
1077 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1078 netdev_get_name(netdev
), ovs_strerror(errno
));
1083 /* Current settings. */
1084 *current
= netdev_bsd_parse_media(ifmr
.ifm_active
);
1086 /* Advertised features. */
1087 *advertised
= netdev_bsd_parse_media(ifmr
.ifm_current
);
1089 /* Supported features. */
1091 for (i
= 0; i
< ifmr
.ifm_count
; i
++) {
1092 *supported
|= netdev_bsd_parse_media(ifmr
.ifm_ulist
[i
]);
1095 /* Peer advertisements. */
1096 *peer
= 0; /* XXX */
1105 * If 'netdev' has an assigned IPv4 address, sets '*in4' to that address and
1106 * '*netmask' to its netmask and returns true. Otherwise, returns false.
1109 netdev_bsd_get_in4(const struct netdev
*netdev_
, struct in_addr
*in4
,
1110 struct in_addr
*netmask
)
1112 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1114 if (!(netdev
->cache_valid
& VALID_IN4
)) {
1115 const struct sockaddr_in
*sin
;
1119 ifr
.ifr_addr
.sa_family
= AF_INET
;
1120 error
= netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
1121 SIOCGIFADDR
, "SIOCGIFADDR");
1126 sin
= (struct sockaddr_in
*) &ifr
.ifr_addr
;
1127 netdev
->in4
= sin
->sin_addr
;
1128 error
= netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
1129 SIOCGIFNETMASK
, "SIOCGIFNETMASK");
1133 netdev
->netmask
= sin
->sin_addr
;
1134 netdev
->cache_valid
|= VALID_IN4
;
1137 *netmask
= netdev
->netmask
;
1139 return in4
->s_addr
== INADDR_ANY
? EADDRNOTAVAIL
: 0;
1143 * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If
1144 * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a
1145 * positive errno value.
1148 netdev_bsd_set_in4(struct netdev
*netdev_
, struct in_addr addr
,
1149 struct in_addr mask
)
1151 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1154 error
= do_set_addr(netdev_
, SIOCSIFADDR
, "SIOCSIFADDR", addr
);
1156 if (addr
.s_addr
!= INADDR_ANY
) {
1157 error
= do_set_addr(netdev_
, SIOCSIFNETMASK
,
1158 "SIOCSIFNETMASK", mask
);
1160 netdev
->cache_valid
|= VALID_IN4
;
1162 netdev
->netmask
= mask
;
1165 netdev_bsd_changed(netdev
);
1171 netdev_bsd_get_in6(const struct netdev
*netdev_
, struct in6_addr
*in6
)
1173 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1174 if (!(netdev
->cache_valid
& VALID_IN6
)) {
1175 struct ifaddrs
*ifa
, *head
;
1176 struct sockaddr_in6
*sin6
;
1177 const char *netdev_name
= netdev_get_name(netdev_
);
1179 if (getifaddrs(&head
) != 0) {
1180 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1181 ovs_strerror(errno
));
1185 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1186 if (ifa
->ifa_addr
->sa_family
== AF_INET6
&&
1187 !strcmp(ifa
->ifa_name
, netdev_name
)) {
1188 sin6
= (struct sockaddr_in6
*)ifa
->ifa_addr
;
1190 memcpy(&netdev
->in6
, &sin6
->sin6_addr
, sin6
->sin6_len
);
1191 netdev
->cache_valid
|= VALID_IN6
;
1198 return EADDRNOTAVAIL
;
1204 #if defined(__NetBSD__)
1206 netdev_bsd_kernel_name_to_ovs_name(const char *kernel_name
)
1208 char *ovs_name
= NULL
;
1209 struct shash device_shash
;
1210 struct shash_node
*node
;
1212 shash_init(&device_shash
);
1213 netdev_get_devices(&netdev_tap_class
, &device_shash
);
1214 SHASH_FOR_EACH(node
, &device_shash
) {
1215 struct netdev
*netdev
= node
->data
;
1216 struct netdev_bsd
* const dev
= netdev_bsd_cast(netdev
);
1218 if (!strcmp(dev
->kernel_name
, kernel_name
)) {
1220 ovs_name
= xstrdup(netdev_get_name(&dev
->up
));
1222 netdev_close(netdev
);
1224 shash_destroy(&device_shash
);
1226 return ovs_name
? ovs_name
: xstrdup(kernel_name
);
1231 netdev_bsd_get_next_hop(const struct in_addr
*host OVS_UNUSED
,
1232 struct in_addr
*next_hop OVS_UNUSED
,
1233 char **netdev_name OVS_UNUSED
)
1235 #if defined(__NetBSD__)
1237 struct sockaddr_in sin
;
1238 struct sockaddr_dl sdl
;
1245 struct rt_msghdr
*rtm
= &buf
.h
;
1246 const pid_t pid
= getpid();
1249 bool gateway
= false;
1250 char *ifname
= NULL
;
1253 memset(next_hop
, 0, sizeof(*next_hop
));
1254 *netdev_name
= NULL
;
1256 memset(&sin
, 0, sizeof(sin
));
1257 sin
.sin_len
= sizeof(sin
);
1258 sin
.sin_family
= AF_INET
;
1260 sin
.sin_addr
= *host
;
1262 memset(&sdl
, 0, sizeof(sdl
));
1263 sdl
.sdl_len
= sizeof(sdl
);
1264 sdl
.sdl_family
= AF_LINK
;
1266 s
= socket(PF_ROUTE
, SOCK_RAW
, 0);
1267 memset(&buf
, 0, sizeof(buf
));
1268 rtm
->rtm_flags
= RTF_HOST
|RTF_UP
;
1269 rtm
->rtm_version
= RTM_VERSION
;
1270 rtm
->rtm_addrs
= RTA_DST
|RTA_IFP
;
1271 cp
= (void *)&buf
.space
;
1272 memcpy(cp
, &sin
, sizeof(sin
));
1273 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sin
);
1274 memcpy(cp
, &sdl
, sizeof(sdl
));
1275 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sdl
);
1276 rtm
->rtm_msglen
= cp
- (char *)(void *)rtm
;
1277 rtm
->rtm_seq
= ++seq
;
1278 rtm
->rtm_type
= RTM_GET
;
1280 write(s
, rtm
, rtm
->rtm_msglen
);
1281 memset(&buf
, 0, sizeof(buf
));
1283 ssz
= read(s
, &buf
, sizeof(buf
));
1284 } while (ssz
> 0 && (rtm
->rtm_seq
!= seq
|| rtm
->rtm_pid
!= pid
));
1285 saved_errno
= errno
;
1291 return EPIPE
; /* XXX */
1293 cp
= (void *)&buf
.space
;
1294 for (i
= 1; i
; i
<<= 1) {
1295 if ((rtm
->rtm_addrs
& i
) != 0) {
1296 const struct sockaddr
*sa
= (const void *)cp
;
1298 if ((i
== RTA_GATEWAY
) && sa
->sa_family
== AF_INET
) {
1299 const struct sockaddr_in
* const sin
=
1300 (const struct sockaddr_in
*)sa
;
1302 *next_hop
= sin
->sin_addr
;
1305 if ((i
== RTA_IFP
) && sa
->sa_family
== AF_LINK
) {
1306 const struct sockaddr_dl
* const sdl
=
1307 (const struct sockaddr_dl
*)sa
;
1310 kernel_name
= xmemdup0(sdl
->sdl_data
, sdl
->sdl_nlen
);
1311 ifname
= netdev_bsd_kernel_name_to_ovs_name(kernel_name
);
1317 if (ifname
== NULL
) {
1323 *netdev_name
= ifname
;
1324 VLOG_DBG("host " IP_FMT
" next-hop " IP_FMT
" if %s",
1325 IP_ARGS(host
->s_addr
), IP_ARGS(next_hop
->s_addr
), *netdev_name
);
1333 make_in4_sockaddr(struct sockaddr
*sa
, struct in_addr addr
)
1335 struct sockaddr_in sin
;
1336 memset(&sin
, 0, sizeof sin
);
1337 sin
.sin_family
= AF_INET
;
1338 sin
.sin_addr
= addr
;
1341 memset(sa
, 0, sizeof *sa
);
1342 memcpy(sa
, &sin
, sizeof sin
);
1346 do_set_addr(struct netdev
*netdev
,
1347 int ioctl_nr
, const char *ioctl_name
, struct in_addr addr
)
1350 make_in4_sockaddr(&ifr
.ifr_addr
, addr
);
1351 return netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev
), &ifr
, ioctl_nr
,
1356 nd_to_iff_flags(enum netdev_flags nd
)
1359 if (nd
& NETDEV_UP
) {
1362 if (nd
& NETDEV_PROMISC
) {
1364 #if defined(IFF_PPROMISC)
1365 iff
|= IFF_PPROMISC
;
1372 iff_to_nd_flags(int iff
)
1374 enum netdev_flags nd
= 0;
1378 if (iff
& IFF_PROMISC
) {
1379 nd
|= NETDEV_PROMISC
;
1385 netdev_bsd_update_flags(struct netdev
*netdev_
, enum netdev_flags off
,
1386 enum netdev_flags on
, enum netdev_flags
*old_flagsp
)
1388 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1389 int old_flags
, new_flags
;
1392 error
= get_flags(netdev_
, &old_flags
);
1394 *old_flagsp
= iff_to_nd_flags(old_flags
);
1395 new_flags
= (old_flags
& ~nd_to_iff_flags(off
)) | nd_to_iff_flags(on
);
1396 if (new_flags
!= old_flags
) {
1397 error
= set_flags(netdev_get_kernel_name(netdev_
), new_flags
);
1398 netdev_bsd_changed(netdev
);
1405 netdev_bsd_change_seq(const struct netdev
*netdev
)
1407 return netdev_bsd_cast(netdev
)->change_seq
;
1411 const struct netdev_class netdev_bsd_class
= {
1417 netdev_bsd_create_system
,
1419 NULL
, /* get_config */
1420 NULL
, /* set_config */
1421 NULL
, /* get_tunnel_config */
1426 netdev_bsd_send_wait
,
1428 netdev_bsd_set_etheraddr
,
1429 netdev_bsd_get_etheraddr
,
1432 netdev_bsd_get_ifindex
,
1433 netdev_bsd_get_carrier
,
1434 NULL
, /* get_carrier_resets */
1435 NULL
, /* set_miimon_interval */
1436 netdev_bsd_get_stats
,
1437 NULL
, /* set_stats */
1439 netdev_bsd_get_features
,
1440 NULL
, /* set_advertisement */
1441 NULL
, /* set_policing */
1442 NULL
, /* get_qos_type */
1443 NULL
, /* get_qos_capabilities */
1446 NULL
, /* get_queue */
1447 NULL
, /* set_queue */
1448 NULL
, /* delete_queue */
1449 NULL
, /* get_queue_stats */
1450 NULL
, /* dump_queue */
1451 NULL
, /* dump_queue_stats */
1456 NULL
, /* add_router */
1457 netdev_bsd_get_next_hop
,
1458 NULL
, /* get_status */
1459 NULL
, /* arp_lookup */
1461 netdev_bsd_update_flags
,
1463 netdev_bsd_change_seq
1466 const struct netdev_class netdev_tap_class
= {
1472 netdev_bsd_create_tap
,
1474 NULL
, /* get_config */
1475 NULL
, /* set_config */
1476 NULL
, /* get_tunnel_config */
1481 netdev_bsd_send_wait
,
1483 netdev_bsd_set_etheraddr
,
1484 netdev_bsd_get_etheraddr
,
1487 netdev_bsd_get_ifindex
,
1488 netdev_bsd_get_carrier
,
1489 NULL
, /* get_carrier_resets */
1490 NULL
, /* set_miimon_interval */
1491 netdev_bsd_get_stats
,
1492 NULL
, /* set_stats */
1494 netdev_bsd_get_features
,
1495 NULL
, /* set_advertisement */
1496 NULL
, /* set_policing */
1497 NULL
, /* get_qos_type */
1498 NULL
, /* get_qos_capabilities */
1501 NULL
, /* get_queue */
1502 NULL
, /* set_queue */
1503 NULL
, /* delete_queue */
1504 NULL
, /* get_queue_stats */
1505 NULL
, /* dump_queue */
1506 NULL
, /* dump_queue_stats */
1511 NULL
, /* add_router */
1512 netdev_bsd_get_next_hop
,
1513 NULL
, /* get_status */
1514 NULL
, /* arp_lookup */
1516 netdev_bsd_update_flags
,
1518 netdev_bsd_change_seq
1521 static const struct netdev_rx_class netdev_rx_bsd_class
= {
1522 netdev_rx_bsd_destroy
,
1525 netdev_rx_bsd_drain
,
1530 destroy_tap(int fd
, const char *name
)
1535 strcpy(ifr
.ifr_name
, name
);
1536 /* XXX What to do if this call fails? */
1537 ioctl(af_inet_sock
, SIOCIFDESTROY
, &ifr
);
1541 get_flags(const struct netdev
*netdev
, int *flags
)
1546 error
= netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev
), &ifr
,
1547 SIOCGIFFLAGS
, "SIOCGIFFLAGS");
1549 *flags
= ifr_get_flags(&ifr
);
1555 set_flags(const char *name
, int flags
)
1559 ifr_set_flags(&ifr
, flags
);
1561 return netdev_bsd_do_ioctl(name
, &ifr
, SIOCSIFFLAGS
, "SIOCSIFFLAGS");
1565 get_ifindex(const struct netdev
*netdev_
, int *ifindexp
)
1567 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1569 if (!(netdev
->cache_valid
& VALID_IFINDEX
)) {
1570 int ifindex
= if_nametoindex(netdev_get_name(netdev_
));
1574 netdev
->cache_valid
|= VALID_IFINDEX
;
1575 netdev
->ifindex
= ifindex
;
1577 *ifindexp
= netdev
->ifindex
;
1582 get_etheraddr(const char *netdev_name
, uint8_t ea
[ETH_ADDR_LEN
])
1584 struct ifaddrs
*head
;
1585 struct ifaddrs
*ifa
;
1586 struct sockaddr_dl
*sdl
;
1588 if (getifaddrs(&head
) != 0) {
1589 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1590 ovs_strerror(errno
));
1594 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1595 if (ifa
->ifa_addr
->sa_family
== AF_LINK
) {
1596 if (!strcmp(ifa
->ifa_name
, netdev_name
)) {
1597 sdl
= (struct sockaddr_dl
*)ifa
->ifa_addr
;
1599 memcpy(ea
, LLADDR(sdl
), sdl
->sdl_alen
);
1607 VLOG_ERR("could not find ethernet address for %s device", netdev_name
);
1613 set_etheraddr(const char *netdev_name OVS_UNUSED
, int hwaddr_family OVS_UNUSED
,
1614 int hwaddr_len OVS_UNUSED
,
1615 const uint8_t mac
[ETH_ADDR_LEN
] OVS_UNUSED
)
1617 #if defined(__FreeBSD__)
1620 memset(&ifr
, 0, sizeof ifr
);
1621 strncpy(ifr
.ifr_name
, netdev_name
, sizeof ifr
.ifr_name
);
1622 ifr
.ifr_addr
.sa_family
= hwaddr_family
;
1623 ifr
.ifr_addr
.sa_len
= hwaddr_len
;
1624 memcpy(ifr
.ifr_addr
.sa_data
, mac
, hwaddr_len
);
1625 if (ioctl(af_inet_sock
, SIOCSIFLLADDR
, &ifr
) < 0) {
1626 VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s",
1627 netdev_name
, ovs_strerror(errno
));
1631 #elif defined(__NetBSD__)
1632 struct if_laddrreq req
;
1633 struct sockaddr_dl
*sdl
;
1634 struct sockaddr_storage oldaddr
;
1638 * get the old address, add new one, and then remove old one.
1641 if (hwaddr_len
!= ETH_ADDR_LEN
) {
1642 /* just to be safe about sockaddr storage size */
1645 memset(&req
, 0, sizeof(req
));
1646 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1647 req
.addr
.ss_len
= sizeof(req
.addr
);
1648 req
.addr
.ss_family
= hwaddr_family
;
1649 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1650 sdl
->sdl_alen
= hwaddr_len
;
1651 ret
= ioctl(af_link_sock
, SIOCGLIFADDR
, &req
);
1655 if (!memcmp(&sdl
->sdl_data
[sdl
->sdl_nlen
], mac
, hwaddr_len
)) {
1660 memset(&req
, 0, sizeof(req
));
1661 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1662 req
.flags
= IFLR_ACTIVE
;
1663 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1664 sdl
->sdl_len
= offsetof(struct sockaddr_dl
, sdl_data
) + hwaddr_len
;
1665 sdl
->sdl_alen
= hwaddr_len
;
1666 sdl
->sdl_family
= hwaddr_family
;
1667 memcpy(sdl
->sdl_data
, mac
, hwaddr_len
);
1668 ret
= ioctl(af_link_sock
, SIOCALIFADDR
, &req
);
1673 memset(&req
, 0, sizeof(req
));
1674 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1676 ret
= ioctl(af_link_sock
, SIOCDLIFADDR
, &req
);
1682 #error not implemented
1687 netdev_bsd_do_ioctl(const char *name
, struct ifreq
*ifr
, unsigned long cmd
,
1688 const char *cmd_name
)
1690 strncpy(ifr
->ifr_name
, name
, sizeof ifr
->ifr_name
);
1691 if (ioctl(af_inet_sock
, cmd
, ifr
) == -1) {
1692 VLOG_DBG_RL(&rl
, "%s: ioctl(%s) failed: %s", name
, cmd_name
,
1693 ovs_strerror(errno
));
1700 ifr_get_flags(const struct ifreq
*ifr
)
1702 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1703 return (ifr
->ifr_flagshigh
<< 16) | ifr
->ifr_flags
;
1705 return ifr
->ifr_flags
;
1710 ifr_set_flags(struct ifreq
*ifr
, int flags
)
1712 ifr
->ifr_flags
= flags
;
1713 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1714 ifr
->ifr_flagshigh
= flags
>> 16;