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
];
90 int tap_fd
; /* TAP character device, if any, otherwise -1. */
92 /* Used for sending packets on non-tap devices. */
101 VALID_IFINDEX
= 1 << 0,
102 VALID_ETHERADDR
= 1 << 1,
106 VALID_CARRIER
= 1 << 5
109 /* An AF_INET socket (used for ioctl operations). */
110 static int af_inet_sock
= -1;
112 #if defined(__NetBSD__)
113 /* AF_LINK socket used for netdev_bsd_get_stats and set_etheraddr */
114 static int af_link_sock
= -1;
115 #endif /* defined(__NetBSD__) */
117 #define PCAP_SNAPLEN 2048
121 * Notifier used to invalidate device informations in case of status change.
123 * It will be registered with a 'rtbsd_notifier_register()' when the first
124 * device will be created with the call of either 'netdev_bsd_tap_create()' or
125 * 'netdev_bsd_system_create()'.
127 * The callback associated with this notifier ('netdev_bsd_cache_cb()') will
128 * invalidate cached information about the device.
130 static struct rtbsd_notifier netdev_bsd_cache_notifier
;
131 static int cache_notifier_refcount
;
133 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(5, 20);
135 static int netdev_bsd_do_ioctl(const char *, struct ifreq
*, unsigned long cmd
,
136 const char *cmd_name
);
137 static void destroy_tap(int fd
, const char *name
);
138 static int get_flags(const struct netdev
*, int *flagsp
);
139 static int set_flags(const char *, int flags
);
140 static int do_set_addr(struct netdev
*netdev
,
141 int ioctl_nr
, const char *ioctl_name
,
142 struct in_addr addr
);
143 static int get_etheraddr(const char *netdev_name
, uint8_t ea
[ETH_ADDR_LEN
]);
144 static int set_etheraddr(const char *netdev_name
, int hwaddr_family
,
145 int hwaddr_len
, const uint8_t[ETH_ADDR_LEN
]);
146 static int get_ifindex(const struct netdev
*, int *ifindexp
);
148 static int ifr_get_flags(const struct ifreq
*);
149 static void ifr_set_flags(struct ifreq
*, int flags
);
151 static int netdev_bsd_init(void);
154 is_netdev_bsd_class(const struct netdev_class
*netdev_class
)
156 return netdev_class
->init
== netdev_bsd_init
;
159 static struct netdev_bsd
*
160 netdev_bsd_cast(const struct netdev
*netdev
)
162 ovs_assert(is_netdev_bsd_class(netdev_get_class(netdev
)));
163 return CONTAINER_OF(netdev
, struct netdev_bsd
, up
);
166 static struct netdev_rx_bsd
*
167 netdev_rx_bsd_cast(const struct netdev_rx
*rx
)
169 netdev_rx_assert_class(rx
, &netdev_rx_bsd_class
);
170 return CONTAINER_OF(rx
, struct netdev_rx_bsd
, up
);
174 netdev_get_kernel_name(const struct netdev
*netdev
)
176 return netdev_bsd_cast(netdev
)->kernel_name
;
179 /* Initialize the AF_INET socket used for ioctl operations */
181 netdev_bsd_init(void)
183 static int status
= -1;
185 if (status
>= 0) { /* already initialized */
189 af_inet_sock
= socket(AF_INET
, SOCK_DGRAM
, 0);
190 status
= af_inet_sock
>= 0 ? 0 : errno
;
192 VLOG_ERR("failed to create inet socket: %s", ovs_strerror(status
));
196 #if defined(__NetBSD__)
197 af_link_sock
= socket(AF_LINK
, SOCK_DGRAM
, 0);
198 status
= af_link_sock
>= 0 ? 0 : errno
;
200 VLOG_ERR("failed to create link socket: %s", ovs_strerror(status
));
204 #endif /* defined(__NetBSD__) */
210 * Perform periodic work needed by netdev. In BSD netdevs it checks for any
211 * interface status changes, and eventually calls all the user callbacks.
216 rtbsd_notifier_run();
220 * Arranges for poll_block() to wake up if the "run" member function needs to
224 netdev_bsd_wait(void)
226 rtbsd_notifier_wait();
230 netdev_bsd_changed(struct netdev_bsd
*dev
)
233 if (!dev
->change_seq
) {
238 /* Invalidate cache in case of interface status change. */
240 netdev_bsd_cache_cb(const struct rtbsd_change
*change
,
241 void *aux OVS_UNUSED
)
243 struct netdev_bsd
*dev
;
246 struct netdev
*base_dev
= netdev_from_name(change
->if_name
);
249 const struct netdev_class
*netdev_class
=
250 netdev_get_class(base_dev
);
252 if (is_netdev_bsd_class(netdev_class
)) {
253 dev
= netdev_bsd_cast(base_dev
);
254 dev
->cache_valid
= 0;
255 netdev_bsd_changed(dev
);
260 * XXX the API is lacking, we should be able to iterate on the list of
261 * netdevs without having to store the info in a temp shash.
263 struct shash device_shash
;
264 struct shash_node
*node
;
266 shash_init(&device_shash
);
267 netdev_get_devices(&netdev_bsd_class
, &device_shash
);
268 SHASH_FOR_EACH (node
, &device_shash
) {
270 dev
->cache_valid
= 0;
271 netdev_bsd_changed(dev
);
273 shash_destroy(&device_shash
);
278 cache_notifier_ref(void)
282 if (!cache_notifier_refcount
) {
283 ret
= rtbsd_notifier_register(&netdev_bsd_cache_notifier
,
284 netdev_bsd_cache_cb
, NULL
);
289 cache_notifier_refcount
++;
294 cache_notifier_unref(void)
296 cache_notifier_refcount
--;
297 if (cache_notifier_refcount
== 0) {
298 rtbsd_notifier_unregister(&netdev_bsd_cache_notifier
);
303 /* Allocate a netdev_bsd structure */
305 netdev_bsd_create_system(const struct netdev_class
*class, const char *name
,
306 struct netdev
**netdevp
)
308 struct netdev_bsd
*netdev
;
309 enum netdev_flags flags
;
312 error
= cache_notifier_ref();
317 netdev
= xzalloc(sizeof *netdev
);
318 netdev
->change_seq
= 1;
319 netdev_init(&netdev
->up
, name
, class);
321 netdev
->kernel_name
= xstrdup(name
);
323 /* Verify that the netdev really exists by attempting to read its flags */
324 error
= netdev_get_flags(&netdev
->up
, &flags
);
325 if (error
== ENXIO
) {
326 netdev_uninit(&netdev
->up
, false);
328 cache_notifier_unref();
332 *netdevp
= &netdev
->up
;
337 * Allocate a netdev_bsd structure with 'tap' class.
340 netdev_bsd_create_tap(const struct netdev_class
*class, const char *name
,
341 struct netdev
**netdevp
)
343 struct netdev_bsd
*netdev
= NULL
;
346 char *kernel_name
= NULL
;
348 error
= cache_notifier_ref();
353 /* allocate the device structure and set the internal flag */
354 netdev
= xzalloc(sizeof *netdev
);
356 memset(&ifr
, 0, sizeof(ifr
));
358 /* Create a tap device by opening /dev/tap. The TAPGIFNAME ioctl is used
359 * to retrieve the name of the tap device. */
360 netdev
->tap_fd
= open("/dev/tap", O_RDWR
);
361 netdev
->change_seq
= 1;
362 if (netdev
->tap_fd
< 0) {
364 VLOG_WARN("opening \"/dev/tap\" failed: %s", ovs_strerror(error
));
365 goto error_undef_notifier
;
368 /* Retrieve tap name (e.g. tap0) */
369 if (ioctl(netdev
->tap_fd
, TAPGIFNAME
, &ifr
) == -1) {
370 /* XXX Need to destroy the device? */
372 goto error_undef_notifier
;
375 /* Change the name of the tap device */
376 #if defined(SIOCSIFNAME)
377 ifr
.ifr_data
= (void *)name
;
378 if (ioctl(af_inet_sock
, SIOCSIFNAME
, &ifr
) == -1) {
380 destroy_tap(netdev
->tap_fd
, ifr
.ifr_name
);
381 goto error_undef_notifier
;
383 kernel_name
= xstrdup(name
);
386 * NetBSD doesn't support inteface renaming.
388 VLOG_INFO("tap %s is created for bridge %s", ifr
.ifr_name
, name
);
389 kernel_name
= xstrdup(ifr
.ifr_name
);
392 /* set non-blocking. */
393 error
= set_nonblocking(netdev
->tap_fd
);
395 destroy_tap(netdev
->tap_fd
, kernel_name
);
396 goto error_undef_notifier
;
400 ifr_set_flags(&ifr
, IFF_UP
);
401 strncpy(ifr
.ifr_name
, kernel_name
, sizeof ifr
.ifr_name
);
402 if (ioctl(af_inet_sock
, SIOCSIFFLAGS
, &ifr
) == -1) {
404 destroy_tap(netdev
->tap_fd
, kernel_name
);
405 goto error_undef_notifier
;
408 /* initialize the device structure and
409 * link the structure to its netdev */
410 netdev_init(&netdev
->up
, name
, class);
411 netdev
->kernel_name
= kernel_name
;
412 *netdevp
= &netdev
->up
;
416 error_undef_notifier
:
417 cache_notifier_unref();
425 netdev_bsd_destroy(struct netdev
*netdev_
)
427 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
429 cache_notifier_unref();
431 if (netdev
->tap_fd
>= 0) {
432 destroy_tap(netdev
->tap_fd
, netdev_get_kernel_name(netdev_
));
435 pcap_close(netdev
->pcap
);
437 free(netdev
->kernel_name
);
442 netdev_bsd_open_pcap(const char *name
, pcap_t
**pcapp
, int *fdp
)
444 char errbuf
[PCAP_ERRBUF_SIZE
];
450 /* Open the pcap device. The device is opened in non-promiscuous mode
451 * because the interface flags are manually set by the caller. */
453 pcap
= pcap_open_live(name
, PCAP_SNAPLEN
, 0, 1000, errbuf
);
455 VLOG_ERR_RL(&rl
, "%s: pcap_open_live failed: %s", name
, errbuf
);
459 if (errbuf
[0] != '\0') {
460 VLOG_WARN_RL(&rl
, "%s: pcap_open_live: %s", name
, errbuf
);
463 /* Get the underlying fd. */
464 fd
= pcap_get_selectable_fd(pcap
);
466 VLOG_WARN_RL(&rl
, "%s: no selectable file descriptor", name
);
471 /* Set non-blocking mode. Also the BIOCIMMEDIATE ioctl must be called
472 * on the file descriptor returned by pcap_get_selectable_fd to achieve
473 * a real non-blocking behaviour.*/
474 error
= pcap_setnonblock(pcap
, 1, errbuf
);
480 /* This call assure that reads return immediately upon packet
481 * reception. Otherwise, a read will block until either the kernel
482 * buffer becomes full or a timeout occurs. */
483 if (ioctl(fd
, BIOCIMMEDIATE
, &one
) < 0 ) {
484 VLOG_ERR_RL(&rl
, "ioctl(BIOCIMMEDIATE) on %s device failed: %s",
485 name
, ovs_strerror(errno
));
490 /* Capture only incoming packets. */
491 error
= pcap_setdirection(pcap
, PCAP_D_IN
);
511 netdev_bsd_rx_open(struct netdev
*netdev_
, struct netdev_rx
**rxp
)
513 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
515 struct netdev_rx_bsd
*rx
;
519 if (!strcmp(netdev_get_type(netdev_
), "tap")) {
523 int error
= netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_
),
529 netdev_bsd_changed(netdev
);
532 rx
= xmalloc(sizeof *rx
);
533 netdev_rx_init(&rx
->up
, netdev_
, &netdev_rx_bsd_class
);
534 rx
->pcap_handle
= pcap
;
542 netdev_rx_bsd_destroy(struct netdev_rx
*rx_
)
544 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
546 if (rx
->pcap_handle
) {
547 pcap_close(rx
->pcap_handle
);
552 /* The recv callback of the netdev class returns the number of bytes of the
555 * This can be done by the pcap_next() function. Unfortunately pcap_next() does
556 * not make difference between a missing packet on the capture interface and
557 * an error during the file capture. We can use the pcap_dispatch() function
558 * instead, which is able to distinguish between errors and null packet.
560 * To make pcap_dispatch() returns the number of bytes read from the interface
561 * we need to define the following callback and argument.
570 * This callback will be executed on every captured packet.
572 * If the packet captured by pcap_dispatch() does not fit the pcap buffer,
573 * pcap returns a truncated packet and we follow this behavior.
575 * The argument args->retval is the packet size in bytes.
578 proc_pkt(u_char
*args_
, const struct pcap_pkthdr
*hdr
, const u_char
*packet
)
580 struct pcap_arg
*args
= (struct pcap_arg
*)args_
;
582 if (args
->size
< hdr
->len
) {
583 VLOG_WARN_RL(&rl
, "packet truncated");
584 args
->retval
= args
->size
;
586 args
->retval
= hdr
->len
;
589 /* copy the packet to our buffer */
590 memcpy(args
->data
, packet
, args
->retval
);
594 * This function attempts to receive a packet from the specified network
595 * device. It is assumed that the network device is a system device or a tap
596 * device opened as a system one. In this case the read operation is performed
600 netdev_rx_bsd_recv_pcap(struct netdev_rx_bsd
*rx
, void *data
, size_t size
)
605 /* prepare the pcap argument to store the packet */
610 ret
= pcap_dispatch(rx
->pcap_handle
, 1, proc_pkt
, (u_char
*) &arg
);
613 return arg
.retval
; /* arg.retval < 0 is handled in the caller */
616 if (errno
== EINTR
) {
626 * This function attempts to receive a packet from the specified network
627 * device. It is assumed that the network device is a tap device and
628 * 'rx->fd' is initialized with the tap file descriptor.
631 netdev_rx_bsd_recv_tap(struct netdev_rx_bsd
*rx
, void *data
, size_t size
)
634 ssize_t retval
= read(rx
->fd
, data
, size
);
637 } else if (errno
!= EINTR
) {
638 if (errno
!= EAGAIN
) {
639 VLOG_WARN_RL(&rl
, "error receiving Ethernet packet on %s: %s",
640 ovs_strerror(errno
), netdev_rx_get_name(&rx
->up
));
649 netdev_rx_bsd_recv(struct netdev_rx
*rx_
, void *data
, size_t size
)
651 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
653 return (rx
->pcap_handle
654 ? netdev_rx_bsd_recv_pcap(rx
, data
, size
)
655 : netdev_rx_bsd_recv_tap(rx
, data
, size
));
659 * Registers with the poll loop to wake up from the next call to poll_block()
660 * when a packet is ready to be received with netdev_rx_recv() on 'rx'.
663 netdev_rx_bsd_wait(struct netdev_rx
*rx_
)
665 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
667 poll_fd_wait(rx
->fd
, POLLIN
);
670 /* Discards all packets waiting to be received from 'rx'. */
672 netdev_rx_bsd_drain(struct netdev_rx
*rx_
)
675 struct netdev_rx_bsd
*rx
= netdev_rx_bsd_cast(rx_
);
677 strcpy(ifr
.ifr_name
, netdev_get_kernel_name(netdev_rx_get_netdev(rx_
)));
678 if (ioctl(rx
->fd
, BIOCFLUSH
, &ifr
) == -1) {
679 VLOG_DBG_RL(&rl
, "%s: ioctl(BIOCFLUSH) failed: %s",
680 netdev_rx_get_name(rx_
), ovs_strerror(errno
));
687 * Send a packet on the specified network device. The device could be either a
688 * system or a tap device.
691 netdev_bsd_send(struct netdev
*netdev_
, const void *data
, size_t size
)
693 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
694 const char *name
= netdev_get_name(netdev_
);
696 if (dev
->tap_fd
< 0 && !dev
->pcap
) {
697 int error
= netdev_bsd_open_pcap(name
, &dev
->pcap
, &dev
->fd
);
705 if (dev
->tap_fd
>= 0) {
706 retval
= write(dev
->tap_fd
, data
, size
);
708 retval
= pcap_inject(dev
->pcap
, data
, size
);
711 if (errno
== EINTR
) {
713 } else if (errno
!= EAGAIN
) {
714 VLOG_WARN_RL(&rl
, "error sending Ethernet packet on %s: %s",
715 name
, ovs_strerror(errno
));
718 } else if (retval
!= size
) {
719 VLOG_WARN_RL(&rl
, "sent partial Ethernet packet (%zd bytes of "
720 "%zu) on %s", retval
, size
, name
);
729 * Registers with the poll loop to wake up from the next call to poll_block()
730 * when the packet transmission queue has sufficient room to transmit a packet
731 * with netdev_send().
734 netdev_bsd_send_wait(struct netdev
*netdev_
)
736 struct netdev_bsd
*dev
= netdev_bsd_cast(netdev_
);
738 if (dev
->tap_fd
>= 0) {
739 /* TAP device always accepts packets. */
740 poll_immediate_wake();
741 } else if (dev
->pcap
) {
742 poll_fd_wait(dev
->fd
, POLLOUT
);
744 /* We haven't even tried to send a packet yet. */
745 poll_immediate_wake();
750 * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful,
751 * otherwise a positive errno value.
754 netdev_bsd_set_etheraddr(struct netdev
*netdev_
,
755 const uint8_t mac
[ETH_ADDR_LEN
])
757 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
760 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)
761 || !eth_addr_equals(netdev
->etheraddr
, mac
)) {
762 error
= set_etheraddr(netdev_get_kernel_name(netdev_
), AF_LINK
,
765 netdev
->cache_valid
|= VALID_ETHERADDR
;
766 memcpy(netdev
->etheraddr
, mac
, ETH_ADDR_LEN
);
767 netdev_bsd_changed(netdev
);
776 * Returns a pointer to 'netdev''s MAC address. The caller must not modify or
777 * free the returned buffer.
780 netdev_bsd_get_etheraddr(const struct netdev
*netdev_
,
781 uint8_t mac
[ETH_ADDR_LEN
])
783 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
785 if (!(netdev
->cache_valid
& VALID_ETHERADDR
)) {
786 int error
= get_etheraddr(netdev_get_kernel_name(netdev_
),
791 netdev
->cache_valid
|= VALID_ETHERADDR
;
793 memcpy(mac
, netdev
->etheraddr
, ETH_ADDR_LEN
);
799 * Returns the maximum size of transmitted (and received) packets on 'netdev',
800 * in bytes, not including the hardware header; thus, this is typically 1500
801 * bytes for Ethernet devices.
804 netdev_bsd_get_mtu(const struct netdev
*netdev_
, int *mtup
)
806 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
808 if (!(netdev
->cache_valid
& VALID_MTU
)) {
812 error
= netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
813 SIOCGIFMTU
, "SIOCGIFMTU");
817 netdev
->mtu
= ifr
.ifr_mtu
;
818 netdev
->cache_valid
|= VALID_MTU
;
826 netdev_bsd_get_ifindex(const struct netdev
*netdev
)
830 error
= get_ifindex(netdev
, &ifindex
);
831 return error
? -error
: ifindex
;
835 netdev_bsd_get_carrier(const struct netdev
*netdev_
, bool *carrier
)
837 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
839 if (!(netdev
->cache_valid
& VALID_CARRIER
)) {
840 struct ifmediareq ifmr
;
842 memset(&ifmr
, 0, sizeof(ifmr
));
843 strncpy(ifmr
.ifm_name
, netdev_get_kernel_name(netdev_
),
844 sizeof ifmr
.ifm_name
);
846 if (ioctl(af_inet_sock
, SIOCGIFMEDIA
, &ifmr
) == -1) {
847 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
848 netdev_get_name(netdev_
), ovs_strerror(errno
));
852 netdev
->carrier
= (ifmr
.ifm_status
& IFM_ACTIVE
) == IFM_ACTIVE
;
853 netdev
->cache_valid
|= VALID_CARRIER
;
855 /* If the interface doesn't report whether the media is active,
856 * just assume it is active. */
857 if ((ifmr
.ifm_status
& IFM_AVALID
) == 0) {
858 netdev
->carrier
= true;
861 *carrier
= netdev
->carrier
;
867 convert_stats(struct netdev_stats
*stats
, const struct if_data
*ifd
)
870 * note: UINT64_MAX means unsupported
872 stats
->rx_packets
= ifd
->ifi_ipackets
;
873 stats
->tx_packets
= ifd
->ifi_opackets
;
874 stats
->rx_bytes
= ifd
->ifi_obytes
;
875 stats
->tx_bytes
= ifd
->ifi_ibytes
;
876 stats
->rx_errors
= ifd
->ifi_ierrors
;
877 stats
->tx_errors
= ifd
->ifi_oerrors
;
878 stats
->rx_dropped
= ifd
->ifi_iqdrops
;
879 stats
->tx_dropped
= UINT64_MAX
;
880 stats
->multicast
= ifd
->ifi_imcasts
;
881 stats
->collisions
= ifd
->ifi_collisions
;
882 stats
->rx_length_errors
= UINT64_MAX
;
883 stats
->rx_over_errors
= UINT64_MAX
;
884 stats
->rx_crc_errors
= UINT64_MAX
;
885 stats
->rx_frame_errors
= UINT64_MAX
;
886 stats
->rx_fifo_errors
= UINT64_MAX
;
887 stats
->rx_missed_errors
= UINT64_MAX
;
888 stats
->tx_aborted_errors
= UINT64_MAX
;
889 stats
->tx_carrier_errors
= UINT64_MAX
;
890 stats
->tx_fifo_errors
= UINT64_MAX
;
891 stats
->tx_heartbeat_errors
= UINT64_MAX
;
892 stats
->tx_window_errors
= UINT64_MAX
;
895 /* Retrieves current device stats for 'netdev'. */
897 netdev_bsd_get_stats(const struct netdev
*netdev_
, struct netdev_stats
*stats
)
899 #if defined(__FreeBSD__)
903 struct ifmibdata ifmd
;
908 mib
[2] = NETLINK_GENERIC
;
909 mib
[3] = IFMIB_SYSTEM
;
910 mib
[4] = IFMIB_IFCOUNT
;
912 len
= sizeof(if_count
);
914 if (sysctl(mib
, 5, &if_count
, &len
, (void *)0, 0) == -1) {
915 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
916 netdev_get_name(netdev_
), ovs_strerror(errno
));
920 mib
[5] = IFDATA_GENERAL
;
921 mib
[3] = IFMIB_IFDATA
;
923 for (i
= 1; i
<= if_count
; i
++) {
925 if (sysctl(mib
, 6, &ifmd
, &len
, (void *)0, 0) == -1) {
926 VLOG_DBG_RL(&rl
, "%s: sysctl failed: %s",
927 netdev_get_name(netdev_
), ovs_strerror(errno
));
929 } else if (!strcmp(ifmd
.ifmd_name
, netdev_get_name(netdev_
))) {
930 convert_stats(stats
, &ifmd
.ifmd_data
);
936 #elif defined(__NetBSD__)
937 struct ifdatareq ifdr
;
941 memset(&ifdr
, 0, sizeof(ifdr
));
942 strncpy(ifdr
.ifdr_name
, netdev_get_kernel_name(netdev_
),
943 sizeof(ifdr
.ifdr_name
));
944 ret
= ioctl(af_link_sock
, SIOCGIFDATA
, &ifdr
);
949 convert_stats(stats
, &ifdr
.ifdr_data
);
952 #error not implemented
957 netdev_bsd_parse_media(int media
)
959 uint32_t supported
= 0;
960 bool half_duplex
= media
& IFM_HDX
? true : false;
962 switch (IFM_SUBTYPE(media
)) {
967 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
968 supported
|= NETDEV_F_COPPER
;
972 supported
|= half_duplex
? NETDEV_F_10MB_HD
: NETDEV_F_10MB_FD
;
973 supported
|= NETDEV_F_FIBER
;
980 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
981 supported
|= NETDEV_F_COPPER
;
985 supported
|= half_duplex
? NETDEV_F_100MB_HD
: NETDEV_F_100MB_FD
;
986 supported
|= NETDEV_F_FIBER
;
991 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
992 supported
|= NETDEV_F_COPPER
;
997 supported
|= half_duplex
? NETDEV_F_1GB_HD
: NETDEV_F_1GB_FD
;
998 supported
|= NETDEV_F_FIBER
;
1002 supported
|= NETDEV_F_10GB_FD
;
1003 supported
|= NETDEV_F_COPPER
;
1008 supported
|= NETDEV_F_10GB_FD
;
1009 supported
|= NETDEV_F_FIBER
;
1016 if (IFM_SUBTYPE(media
) == IFM_AUTO
) {
1017 supported
|= NETDEV_F_AUTONEG
;
1020 if (media & IFM_ETH_FMASK) {
1021 supported |= NETDEV_F_PAUSE;
1029 * Stores the features supported by 'netdev' into each of '*current',
1030 * '*advertised', '*supported', and '*peer' that are non-null. Each value is a
1031 * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if
1032 * successful, otherwise a positive errno value. On failure, all of the
1033 * passed-in values are set to 0.
1036 netdev_bsd_get_features(const struct netdev
*netdev
,
1037 enum netdev_features
*current
, uint32_t *advertised
,
1038 enum netdev_features
*supported
, uint32_t *peer
)
1040 struct ifmediareq ifmr
;
1046 /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */
1048 memset(&ifmr
, 0, sizeof(ifmr
));
1049 strncpy(ifmr
.ifm_name
, netdev_get_name(netdev
), sizeof ifmr
.ifm_name
);
1051 /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the
1052 * number of supported modes, and a second with a buffer to retrieve
1054 if (ioctl(af_inet_sock
, SIOCGIFMEDIA
, &ifmr
) == -1) {
1055 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1056 netdev_get_name(netdev
), ovs_strerror(errno
));
1060 media_list
= xcalloc(ifmr
.ifm_count
, sizeof(int));
1061 ifmr
.ifm_ulist
= media_list
;
1063 if (IFM_TYPE(ifmr
.ifm_current
) != IFM_ETHER
) {
1064 VLOG_DBG_RL(&rl
, "%s: doesn't appear to be ethernet",
1065 netdev_get_name(netdev
));
1070 if (ioctl(af_inet_sock
, SIOCGIFMEDIA
, &ifmr
) == -1) {
1071 VLOG_DBG_RL(&rl
, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1072 netdev_get_name(netdev
), ovs_strerror(errno
));
1077 /* Current settings. */
1078 *current
= netdev_bsd_parse_media(ifmr
.ifm_active
);
1080 /* Advertised features. */
1081 *advertised
= netdev_bsd_parse_media(ifmr
.ifm_current
);
1083 /* Supported features. */
1085 for (i
= 0; i
< ifmr
.ifm_count
; i
++) {
1086 *supported
|= netdev_bsd_parse_media(ifmr
.ifm_ulist
[i
]);
1089 /* Peer advertisements. */
1090 *peer
= 0; /* XXX */
1099 * If 'netdev' has an assigned IPv4 address, sets '*in4' to that address (if
1100 * 'in4' is non-null) and returns true. Otherwise, returns false.
1103 netdev_bsd_get_in4(const struct netdev
*netdev_
, struct in_addr
*in4
,
1104 struct in_addr
*netmask
)
1106 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1108 if (!(netdev
->cache_valid
& VALID_IN4
)) {
1109 const struct sockaddr_in
*sin
;
1113 ifr
.ifr_addr
.sa_family
= AF_INET
;
1114 error
= netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
1115 SIOCGIFADDR
, "SIOCGIFADDR");
1120 sin
= (struct sockaddr_in
*) &ifr
.ifr_addr
;
1121 netdev
->in4
= sin
->sin_addr
;
1122 netdev
->cache_valid
|= VALID_IN4
;
1123 error
= netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_
), &ifr
,
1124 SIOCGIFNETMASK
, "SIOCGIFNETMASK");
1128 *netmask
= ((struct sockaddr_in
*)&ifr
.ifr_addr
)->sin_addr
;
1132 return in4
->s_addr
== INADDR_ANY
? EADDRNOTAVAIL
: 0;
1136 * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If
1137 * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a
1138 * positive errno value.
1141 netdev_bsd_set_in4(struct netdev
*netdev_
, struct in_addr addr
,
1142 struct in_addr mask
)
1144 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1147 error
= do_set_addr(netdev_
, SIOCSIFADDR
, "SIOCSIFADDR", addr
);
1149 netdev
->cache_valid
|= VALID_IN4
;
1151 if (addr
.s_addr
!= INADDR_ANY
) {
1152 error
= do_set_addr(netdev_
, SIOCSIFNETMASK
,
1153 "SIOCSIFNETMASK", mask
);
1155 netdev_bsd_changed(netdev
);
1161 netdev_bsd_get_in6(const struct netdev
*netdev_
, struct in6_addr
*in6
)
1163 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1164 if (!(netdev
->cache_valid
& VALID_IN6
)) {
1165 struct ifaddrs
*ifa
, *head
;
1166 struct sockaddr_in6
*sin6
;
1167 const char *netdev_name
= netdev_get_name(netdev_
);
1169 if (getifaddrs(&head
) != 0) {
1170 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1171 ovs_strerror(errno
));
1175 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1176 if (ifa
->ifa_addr
->sa_family
== AF_INET6
&&
1177 !strcmp(ifa
->ifa_name
, netdev_name
)) {
1178 sin6
= (struct sockaddr_in6
*)ifa
->ifa_addr
;
1180 memcpy(&netdev
->in6
, &sin6
->sin6_addr
, sin6
->sin6_len
);
1181 netdev
->cache_valid
|= VALID_IN6
;
1188 return EADDRNOTAVAIL
;
1194 #if defined(__NetBSD__)
1195 static struct netdev
*
1196 find_netdev_by_kernel_name(const char *kernel_name
)
1198 struct shash device_shash
;
1199 struct shash_node
*node
;
1201 shash_init(&device_shash
);
1202 netdev_get_devices(&netdev_tap_class
, &device_shash
);
1203 SHASH_FOR_EACH(node
, &device_shash
) {
1204 struct netdev_bsd
* const dev
= node
->data
;
1206 if (!strcmp(dev
->kernel_name
, kernel_name
)) {
1207 shash_destroy(&device_shash
);
1211 shash_destroy(&device_shash
);
1216 netdev_bsd_convert_kernel_name_to_ovs_name(const char *kernel_name
)
1218 const struct netdev
* const netdev
=
1219 find_netdev_by_kernel_name(kernel_name
);
1221 if (netdev
== NULL
) {
1224 return netdev_get_name(netdev
);
1229 netdev_bsd_get_next_hop(const struct in_addr
*host OVS_UNUSED
,
1230 struct in_addr
*next_hop OVS_UNUSED
,
1231 char **netdev_name OVS_UNUSED
)
1233 #if defined(__NetBSD__)
1235 struct sockaddr_in sin
;
1236 struct sockaddr_dl sdl
;
1243 struct rt_msghdr
*rtm
= &buf
.h
;
1244 const pid_t pid
= getpid();
1247 bool gateway
= false;
1248 char *ifname
= NULL
;
1251 memset(next_hop
, 0, sizeof(*next_hop
));
1252 *netdev_name
= NULL
;
1254 memset(&sin
, 0, sizeof(sin
));
1255 sin
.sin_len
= sizeof(sin
);
1256 sin
.sin_family
= AF_INET
;
1258 sin
.sin_addr
= *host
;
1260 memset(&sdl
, 0, sizeof(sdl
));
1261 sdl
.sdl_len
= sizeof(sdl
);
1262 sdl
.sdl_family
= AF_LINK
;
1264 s
= socket(PF_ROUTE
, SOCK_RAW
, 0);
1265 memset(&buf
, 0, sizeof(buf
));
1266 rtm
->rtm_flags
= RTF_HOST
|RTF_UP
;
1267 rtm
->rtm_version
= RTM_VERSION
;
1268 rtm
->rtm_addrs
= RTA_DST
|RTA_IFP
;
1269 cp
= (void *)&buf
.space
;
1270 memcpy(cp
, &sin
, sizeof(sin
));
1271 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sin
);
1272 memcpy(cp
, &sdl
, sizeof(sdl
));
1273 RT_ADVANCE(cp
, (struct sockaddr
*)(void *)&sdl
);
1274 rtm
->rtm_msglen
= cp
- (char *)(void *)rtm
;
1275 rtm
->rtm_seq
= ++seq
;
1276 rtm
->rtm_type
= RTM_GET
;
1278 write(s
, rtm
, rtm
->rtm_msglen
);
1279 memset(&buf
, 0, sizeof(buf
));
1281 ssz
= read(s
, &buf
, sizeof(buf
));
1282 } while (ssz
> 0 && (rtm
->rtm_seq
!= seq
|| rtm
->rtm_pid
!= pid
));
1283 saved_errno
= errno
;
1289 return EPIPE
; /* XXX */
1291 cp
= (void *)&buf
.space
;
1292 for (i
= 1; i
; i
<<= 1) {
1293 if ((rtm
->rtm_addrs
& i
) != 0) {
1294 const struct sockaddr
*sa
= (const void *)cp
;
1296 if ((i
== RTA_GATEWAY
) && sa
->sa_family
== AF_INET
) {
1297 const struct sockaddr_in
* const sin
=
1298 (const struct sockaddr_in
*)sa
;
1300 *next_hop
= sin
->sin_addr
;
1303 if ((i
== RTA_IFP
) && sa
->sa_family
== AF_LINK
) {
1304 const struct sockaddr_dl
* const sdl
=
1305 (const struct sockaddr_dl
*)sa
;
1306 const size_t nlen
= sdl
->sdl_nlen
;
1307 char * const kernel_name
= xmalloc(nlen
+ 1);
1310 memcpy(kernel_name
, sdl
->sdl_data
, nlen
);
1311 kernel_name
[nlen
] = 0;
1312 name
= netdev_bsd_convert_kernel_name_to_ovs_name(kernel_name
);
1314 ifname
= xstrdup(kernel_name
);
1316 ifname
= xstrdup(name
);
1323 if (ifname
== NULL
) {
1329 *netdev_name
= ifname
;
1330 VLOG_DBG("host " IP_FMT
" next-hop " IP_FMT
" if %s",
1331 IP_ARGS(host
->s_addr
), IP_ARGS(next_hop
->s_addr
), *netdev_name
);
1339 make_in4_sockaddr(struct sockaddr
*sa
, struct in_addr addr
)
1341 struct sockaddr_in sin
;
1342 memset(&sin
, 0, sizeof sin
);
1343 sin
.sin_family
= AF_INET
;
1344 sin
.sin_addr
= addr
;
1347 memset(sa
, 0, sizeof *sa
);
1348 memcpy(sa
, &sin
, sizeof sin
);
1352 do_set_addr(struct netdev
*netdev
,
1353 int ioctl_nr
, const char *ioctl_name
, struct in_addr addr
)
1356 make_in4_sockaddr(&ifr
.ifr_addr
, addr
);
1357 return netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev
), &ifr
, ioctl_nr
,
1362 nd_to_iff_flags(enum netdev_flags nd
)
1365 if (nd
& NETDEV_UP
) {
1368 if (nd
& NETDEV_PROMISC
) {
1370 #if defined(IFF_PPROMISC)
1371 iff
|= IFF_PPROMISC
;
1378 iff_to_nd_flags(int iff
)
1380 enum netdev_flags nd
= 0;
1384 if (iff
& IFF_PROMISC
) {
1385 nd
|= NETDEV_PROMISC
;
1391 netdev_bsd_update_flags(struct netdev
*netdev_
, enum netdev_flags off
,
1392 enum netdev_flags on
, enum netdev_flags
*old_flagsp
)
1394 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1395 int old_flags
, new_flags
;
1398 error
= get_flags(netdev_
, &old_flags
);
1400 *old_flagsp
= iff_to_nd_flags(old_flags
);
1401 new_flags
= (old_flags
& ~nd_to_iff_flags(off
)) | nd_to_iff_flags(on
);
1402 if (new_flags
!= old_flags
) {
1403 error
= set_flags(netdev_get_kernel_name(netdev_
), new_flags
);
1404 netdev_bsd_changed(netdev
);
1411 netdev_bsd_change_seq(const struct netdev
*netdev
)
1413 return netdev_bsd_cast(netdev
)->change_seq
;
1417 const struct netdev_class netdev_bsd_class
= {
1423 netdev_bsd_create_system
,
1425 NULL
, /* get_config */
1426 NULL
, /* set_config */
1427 NULL
, /* get_tunnel_config */
1432 netdev_bsd_send_wait
,
1434 netdev_bsd_set_etheraddr
,
1435 netdev_bsd_get_etheraddr
,
1438 netdev_bsd_get_ifindex
,
1439 netdev_bsd_get_carrier
,
1440 NULL
, /* get_carrier_resets */
1441 NULL
, /* set_miimon_interval */
1442 netdev_bsd_get_stats
,
1443 NULL
, /* set_stats */
1445 netdev_bsd_get_features
,
1446 NULL
, /* set_advertisement */
1447 NULL
, /* set_policing */
1448 NULL
, /* get_qos_type */
1449 NULL
, /* get_qos_capabilities */
1452 NULL
, /* get_queue */
1453 NULL
, /* set_queue */
1454 NULL
, /* delete_queue */
1455 NULL
, /* get_queue_stats */
1456 NULL
, /* dump_queue */
1457 NULL
, /* dump_queue_stats */
1462 NULL
, /* add_router */
1463 netdev_bsd_get_next_hop
,
1464 NULL
, /* get_status */
1465 NULL
, /* arp_lookup */
1467 netdev_bsd_update_flags
,
1469 netdev_bsd_change_seq
1472 const struct netdev_class netdev_tap_class
= {
1478 netdev_bsd_create_tap
,
1480 NULL
, /* get_config */
1481 NULL
, /* set_config */
1482 NULL
, /* get_tunnel_config */
1487 netdev_bsd_send_wait
,
1489 netdev_bsd_set_etheraddr
,
1490 netdev_bsd_get_etheraddr
,
1493 netdev_bsd_get_ifindex
,
1494 netdev_bsd_get_carrier
,
1495 NULL
, /* get_carrier_resets */
1496 NULL
, /* set_miimon_interval */
1497 netdev_bsd_get_stats
,
1498 NULL
, /* set_stats */
1500 netdev_bsd_get_features
,
1501 NULL
, /* set_advertisement */
1502 NULL
, /* set_policing */
1503 NULL
, /* get_qos_type */
1504 NULL
, /* get_qos_capabilities */
1507 NULL
, /* get_queue */
1508 NULL
, /* set_queue */
1509 NULL
, /* delete_queue */
1510 NULL
, /* get_queue_stats */
1511 NULL
, /* dump_queue */
1512 NULL
, /* dump_queue_stats */
1517 NULL
, /* add_router */
1518 netdev_bsd_get_next_hop
,
1519 NULL
, /* get_status */
1520 NULL
, /* arp_lookup */
1522 netdev_bsd_update_flags
,
1524 netdev_bsd_change_seq
1527 static const struct netdev_rx_class netdev_rx_bsd_class
= {
1528 netdev_rx_bsd_destroy
,
1531 netdev_rx_bsd_drain
,
1536 destroy_tap(int fd
, const char *name
)
1541 strcpy(ifr
.ifr_name
, name
);
1542 /* XXX What to do if this call fails? */
1543 ioctl(af_inet_sock
, SIOCIFDESTROY
, &ifr
);
1547 get_flags(const struct netdev
*netdev
, int *flags
)
1552 error
= netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev
), &ifr
,
1553 SIOCGIFFLAGS
, "SIOCGIFFLAGS");
1555 *flags
= ifr_get_flags(&ifr
);
1561 set_flags(const char *name
, int flags
)
1565 ifr_set_flags(&ifr
, flags
);
1567 return netdev_bsd_do_ioctl(name
, &ifr
, SIOCSIFFLAGS
, "SIOCSIFFLAGS");
1571 get_ifindex(const struct netdev
*netdev_
, int *ifindexp
)
1573 struct netdev_bsd
*netdev
= netdev_bsd_cast(netdev_
);
1575 if (!(netdev
->cache_valid
& VALID_IFINDEX
)) {
1576 int ifindex
= if_nametoindex(netdev_get_name(netdev_
));
1580 netdev
->cache_valid
|= VALID_IFINDEX
;
1581 netdev
->ifindex
= ifindex
;
1583 *ifindexp
= netdev
->ifindex
;
1588 get_etheraddr(const char *netdev_name
, uint8_t ea
[ETH_ADDR_LEN
])
1590 struct ifaddrs
*head
;
1591 struct ifaddrs
*ifa
;
1592 struct sockaddr_dl
*sdl
;
1594 if (getifaddrs(&head
) != 0) {
1595 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name
,
1596 ovs_strerror(errno
));
1600 for (ifa
= head
; ifa
; ifa
= ifa
->ifa_next
) {
1601 if (ifa
->ifa_addr
->sa_family
== AF_LINK
) {
1602 if (!strcmp(ifa
->ifa_name
, netdev_name
)) {
1603 sdl
= (struct sockaddr_dl
*)ifa
->ifa_addr
;
1605 memcpy(ea
, LLADDR(sdl
), sdl
->sdl_alen
);
1613 VLOG_ERR("could not find ethernet address for %s device", netdev_name
);
1619 set_etheraddr(const char *netdev_name OVS_UNUSED
, int hwaddr_family OVS_UNUSED
,
1620 int hwaddr_len OVS_UNUSED
,
1621 const uint8_t mac
[ETH_ADDR_LEN
] OVS_UNUSED
)
1623 #if defined(__FreeBSD__)
1626 memset(&ifr
, 0, sizeof ifr
);
1627 strncpy(ifr
.ifr_name
, netdev_name
, sizeof ifr
.ifr_name
);
1628 ifr
.ifr_addr
.sa_family
= hwaddr_family
;
1629 ifr
.ifr_addr
.sa_len
= hwaddr_len
;
1630 memcpy(ifr
.ifr_addr
.sa_data
, mac
, hwaddr_len
);
1631 if (ioctl(af_inet_sock
, SIOCSIFLLADDR
, &ifr
) < 0) {
1632 VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s",
1633 netdev_name
, ovs_strerror(errno
));
1637 #elif defined(__NetBSD__)
1638 struct if_laddrreq req
;
1639 struct sockaddr_dl
*sdl
;
1640 struct sockaddr_storage oldaddr
;
1644 * get the old address, add new one, and then remove old one.
1647 if (hwaddr_len
!= ETH_ADDR_LEN
) {
1648 /* just to be safe about sockaddr storage size */
1651 memset(&req
, 0, sizeof(req
));
1652 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1653 req
.addr
.ss_len
= sizeof(req
.addr
);
1654 req
.addr
.ss_family
= hwaddr_family
;
1655 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1656 sdl
->sdl_alen
= hwaddr_len
;
1657 ret
= ioctl(af_link_sock
, SIOCGLIFADDR
, &req
);
1661 if (!memcmp(&sdl
->sdl_data
[sdl
->sdl_nlen
], mac
, hwaddr_len
)) {
1666 memset(&req
, 0, sizeof(req
));
1667 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1668 req
.flags
= IFLR_ACTIVE
;
1669 sdl
= (struct sockaddr_dl
*)&req
.addr
;
1670 sdl
->sdl_len
= offsetof(struct sockaddr_dl
, sdl_data
) + hwaddr_len
;
1671 sdl
->sdl_alen
= hwaddr_len
;
1672 sdl
->sdl_family
= hwaddr_family
;
1673 memcpy(sdl
->sdl_data
, mac
, hwaddr_len
);
1674 ret
= ioctl(af_link_sock
, SIOCALIFADDR
, &req
);
1679 memset(&req
, 0, sizeof(req
));
1680 strncpy(req
.iflr_name
, netdev_name
, sizeof(req
.iflr_name
));
1682 ret
= ioctl(af_link_sock
, SIOCDLIFADDR
, &req
);
1688 #error not implemented
1693 netdev_bsd_do_ioctl(const char *name
, struct ifreq
*ifr
, unsigned long cmd
,
1694 const char *cmd_name
)
1696 strncpy(ifr
->ifr_name
, name
, sizeof ifr
->ifr_name
);
1697 if (ioctl(af_inet_sock
, cmd
, ifr
) == -1) {
1698 VLOG_DBG_RL(&rl
, "%s: ioctl(%s) failed: %s", name
, cmd_name
,
1699 ovs_strerror(errno
));
1706 ifr_get_flags(const struct ifreq
*ifr
)
1708 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1709 return (ifr
->ifr_flagshigh
<< 16) | ifr
->ifr_flags
;
1711 return ifr
->ifr_flags
;
1716 ifr_set_flags(struct ifreq
*ifr
, int flags
)
1718 ifr
->ifr_flags
= flags
;
1719 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1720 ifr
->ifr_flagshigh
= flags
>> 16;