2 * Copyright (c) 2011 Gaetano Catalli.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include "netdev-provider.h"
23 #include <sys/types.h>
25 #include <sys/ioctl.h>
26 #include <sys/socket.h>
27 #include <sys/sockio.h>
29 #include <pcap/pcap.h>
31 #include <net/if_dl.h>
32 #include <net/if_media.h>
33 #include <net/if_tap.h>
34 #include <netinet/in.h>
35 #ifdef HAVE_NET_IF_MIB_H
36 #include <net/if_mib.h>
41 #include <sys/sysctl.h>
45 #include "dynamic-string.h"
46 #include "fatal-signal.h"
48 #include "openflow/openflow.h"
50 #include "poll-loop.h"
51 #include "socket-util.h"
57 VLOG_DEFINE_THIS_MODULE(netdev_bsd);
60 struct netdev_rx_bsd {
63 /* Packet capture descriptor for a system network device.
64 * For a tap device this is NULL. */
67 /* Selectable file descriptor for the network device.
68 * This descriptor will be used for polling operations. */
72 static const struct netdev_rx_class netdev_rx_bsd_class;
76 unsigned int cache_valid;
77 unsigned int change_seq;
80 uint8_t etheraddr[ETH_ADDR_LEN];
86 int tap_fd; /* TAP character device, if any, otherwise -1. */
88 /* Used for sending packets on non-tap devices. */
97 VALID_IFINDEX = 1 << 0,
98 VALID_ETHERADDR = 1 << 1,
102 VALID_CARRIER = 1 << 5
105 /* An AF_INET socket (used for ioctl operations). */
106 static int af_inet_sock = -1;
108 #define PCAP_SNAPLEN 2048
112 * Notifier used to invalidate device informations in case of status change.
114 * It will be registered with a 'rtbsd_notifier_register()' when the first
115 * device will be created with the call of either 'netdev_bsd_tap_create()' or
116 * 'netdev_bsd_system_create()'.
118 * The callback associated with this notifier ('netdev_bsd_cache_cb()') will
119 * invalidate cached information about the device.
121 static struct rtbsd_notifier netdev_bsd_cache_notifier;
122 static int cache_notifier_refcount;
124 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
126 static int netdev_bsd_do_ioctl(const char *, struct ifreq *, unsigned long cmd,
127 const char *cmd_name);
128 static void destroy_tap(int fd, const char *name);
129 static int get_flags(const struct netdev *, int *flagsp);
130 static int set_flags(const char *, int flags);
131 static int do_set_addr(struct netdev *netdev,
132 int ioctl_nr, const char *ioctl_name,
133 struct in_addr addr);
134 static int get_etheraddr(const char *netdev_name, uint8_t ea[ETH_ADDR_LEN]);
135 static int set_etheraddr(const char *netdev_name, int hwaddr_family,
136 int hwaddr_len, const uint8_t[ETH_ADDR_LEN]);
137 static int get_ifindex(const struct netdev *, int *ifindexp);
139 static int ifr_get_flags(const struct ifreq *);
140 static void ifr_set_flags(struct ifreq *, int flags);
142 static int netdev_bsd_init(void);
145 is_netdev_bsd_class(const struct netdev_class *netdev_class)
147 return netdev_class->init == netdev_bsd_init;
150 static struct netdev_bsd *
151 netdev_bsd_cast(const struct netdev *netdev)
153 ovs_assert(is_netdev_bsd_class(netdev_get_class(netdev)));
154 return CONTAINER_OF(netdev, struct netdev_bsd, up);
157 static struct netdev_rx_bsd *
158 netdev_rx_bsd_cast(const struct netdev_rx *rx)
160 netdev_rx_assert_class(rx, &netdev_rx_bsd_class);
161 return CONTAINER_OF(rx, struct netdev_rx_bsd, up);
165 netdev_get_kernel_name(const struct netdev *netdev)
167 return netdev_bsd_cast(netdev)->kernel_name;
170 /* Initialize the AF_INET socket used for ioctl operations */
172 netdev_bsd_init(void)
174 static int status = -1;
176 if (status >= 0) { /* already initialized */
180 af_inet_sock = socket(AF_INET, SOCK_DGRAM, 0);
181 status = af_inet_sock >= 0 ? 0 : errno;
184 VLOG_ERR("failed to create inet socket: %s", strerror(status));
191 * Perform periodic work needed by netdev. In BSD netdevs it checks for any
192 * interface status changes, and eventually calls all the user callbacks.
197 rtbsd_notifier_run();
201 * Arranges for poll_block() to wake up if the "run" member function needs to
205 netdev_bsd_wait(void)
207 rtbsd_notifier_wait();
211 netdev_bsd_changed(struct netdev_bsd *dev)
214 if (!dev->change_seq) {
219 /* Invalidate cache in case of interface status change. */
221 netdev_bsd_cache_cb(const struct rtbsd_change *change,
222 void *aux OVS_UNUSED)
224 struct netdev_bsd *dev;
227 struct netdev *base_dev = netdev_from_name(change->if_name);
230 const struct netdev_class *netdev_class =
231 netdev_get_class(base_dev);
233 if (is_netdev_bsd_class(netdev_class)) {
234 dev = netdev_bsd_cast(base_dev);
235 dev->cache_valid = 0;
236 netdev_bsd_changed(dev);
241 * XXX the API is lacking, we should be able to iterate on the list of
242 * netdevs without having to store the info in a temp shash.
244 struct shash device_shash;
245 struct shash_node *node;
247 shash_init(&device_shash);
248 netdev_get_devices(&netdev_bsd_class, &device_shash);
249 SHASH_FOR_EACH (node, &device_shash) {
251 dev->cache_valid = 0;
252 netdev_bsd_changed(dev);
254 shash_destroy(&device_shash);
259 cache_notifier_ref(void)
263 if (!cache_notifier_refcount) {
264 ret = rtbsd_notifier_register(&netdev_bsd_cache_notifier,
265 netdev_bsd_cache_cb, NULL);
270 cache_notifier_refcount++;
275 cache_notifier_unref(void)
277 cache_notifier_refcount--;
278 if (cache_notifier_refcount == 0) {
279 rtbsd_notifier_unregister(&netdev_bsd_cache_notifier);
284 /* Allocate a netdev_bsd structure */
286 netdev_bsd_create_system(const struct netdev_class *class, const char *name,
287 struct netdev **netdevp)
289 struct netdev_bsd *netdev;
290 enum netdev_flags flags;
293 error = cache_notifier_ref();
298 netdev = xzalloc(sizeof *netdev);
299 netdev->change_seq = 1;
300 netdev_init(&netdev->up, name, class);
302 netdev->kernel_name = xstrdup(name);
304 /* Verify that the netdev really exists by attempting to read its flags */
305 error = netdev_get_flags(&netdev->up, &flags);
306 if (error == ENXIO) {
307 netdev_uninit(&netdev->up, false);
309 cache_notifier_unref();
313 *netdevp = &netdev->up;
318 * Allocate a netdev_bsd structure with 'tap' class.
321 netdev_bsd_create_tap(const struct netdev_class *class, const char *name,
322 struct netdev **netdevp)
324 struct netdev_bsd *netdev = NULL;
327 char *kernel_name = NULL;
329 error = cache_notifier_ref();
334 /* allocate the device structure and set the internal flag */
335 netdev = xzalloc(sizeof *netdev);
337 memset(&ifr, 0, sizeof(ifr));
339 /* Create a tap device by opening /dev/tap. The TAPGIFNAME ioctl is used
340 * to retrieve the name of the tap device. */
341 netdev->tap_fd = open("/dev/tap", O_RDWR);
342 netdev->change_seq = 1;
343 if (netdev->tap_fd < 0) {
345 VLOG_WARN("opening \"/dev/tap\" failed: %s", strerror(error));
346 goto error_undef_notifier;
349 /* Retrieve tap name (e.g. tap0) */
350 if (ioctl(netdev->tap_fd, TAPGIFNAME, &ifr) == -1) {
351 /* XXX Need to destroy the device? */
353 goto error_undef_notifier;
356 /* Change the name of the tap device */
357 #if defined(SIOCSIFNAME)
358 ifr.ifr_data = (void *)name;
359 if (ioctl(af_inet_sock, SIOCSIFNAME, &ifr) == -1) {
361 destroy_tap(netdev->tap_fd, ifr.ifr_name);
362 goto error_undef_notifier;
364 kernel_name = xstrdup(name);
367 * NetBSD doesn't support inteface renaming.
369 VLOG_INFO("tap %s is created for bridge %s", ifr.ifr_name, name);
370 kernel_name = xstrdup(ifr.ifr_name);
373 /* set non-blocking. */
374 error = set_nonblocking(netdev->tap_fd);
376 destroy_tap(netdev->tap_fd, kernel_name);
377 goto error_undef_notifier;
381 ifr_set_flags(&ifr, IFF_UP);
382 strncpy(ifr.ifr_name, kernel_name, sizeof ifr.ifr_name);
383 if (ioctl(af_inet_sock, SIOCSIFFLAGS, &ifr) == -1) {
385 destroy_tap(netdev->tap_fd, kernel_name);
386 goto error_undef_notifier;
389 /* initialize the device structure and
390 * link the structure to its netdev */
391 netdev_init(&netdev->up, name, class);
392 netdev->kernel_name = kernel_name;
393 *netdevp = &netdev->up;
397 error_undef_notifier:
398 cache_notifier_unref();
406 netdev_bsd_destroy(struct netdev *netdev_)
408 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
410 cache_notifier_unref();
412 if (netdev->tap_fd >= 0) {
413 destroy_tap(netdev->tap_fd, netdev_get_kernel_name(netdev_));
416 pcap_close(netdev->pcap);
418 free(netdev->kernel_name);
423 netdev_bsd_open_pcap(const char *name, pcap_t **pcapp, int *fdp)
425 char errbuf[PCAP_ERRBUF_SIZE];
431 /* Open the pcap device. The device is opened in non-promiscuous mode
432 * because the interface flags are manually set by the caller. */
434 pcap = pcap_open_live(name, PCAP_SNAPLEN, 0, 1000, errbuf);
436 VLOG_ERR_RL(&rl, "%s: pcap_open_live failed: %s", name, errbuf);
440 if (errbuf[0] != '\0') {
441 VLOG_WARN_RL(&rl, "%s: pcap_open_live: %s", name, errbuf);
444 /* Get the underlying fd. */
445 fd = pcap_get_selectable_fd(pcap);
447 VLOG_WARN_RL(&rl, "%s: no selectable file descriptor", name);
452 /* Set non-blocking mode. Also the BIOCIMMEDIATE ioctl must be called
453 * on the file descriptor returned by pcap_get_selectable_fd to achieve
454 * a real non-blocking behaviour.*/
455 error = pcap_setnonblock(pcap, 1, errbuf);
461 /* This call assure that reads return immediately upon packet
462 * reception. Otherwise, a read will block until either the kernel
463 * buffer becomes full or a timeout occurs. */
464 if (ioctl(fd, BIOCIMMEDIATE, &one) < 0 ) {
465 VLOG_ERR_RL(&rl, "ioctl(BIOCIMMEDIATE) on %s device failed: %s",
466 name, strerror(errno));
471 /* Capture only incoming packets. */
472 error = pcap_setdirection(pcap, PCAP_D_IN);
492 netdev_bsd_rx_open(struct netdev *netdev_, struct netdev_rx **rxp)
494 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
496 struct netdev_rx_bsd *rx;
500 if (!strcmp(netdev_get_type(netdev_), "tap")) {
504 int error = netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_),
510 netdev_bsd_changed(netdev);
513 rx = xmalloc(sizeof *rx);
514 netdev_rx_init(&rx->up, netdev_, &netdev_rx_bsd_class);
515 rx->pcap_handle = pcap;
523 netdev_rx_bsd_destroy(struct netdev_rx *rx_)
525 struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_);
527 if (rx->pcap_handle) {
528 pcap_close(rx->pcap_handle);
533 /* The recv callback of the netdev class returns the number of bytes of the
536 * This can be done by the pcap_next() function. Unfortunately pcap_next() does
537 * not make difference between a missing packet on the capture interface and
538 * an error during the file capture. We can use the pcap_dispatch() function
539 * instead, which is able to distinguish between errors and null packet.
541 * To make pcap_dispatch() returns the number of bytes read from the interface
542 * we need to define the following callback and argument.
551 * This callback will be executed on every captured packet.
553 * If the packet captured by pcap_dispatch() does not fit the pcap buffer,
554 * pcap returns a truncated packet and we follow this behavior.
556 * The argument args->retval is the packet size in bytes.
559 proc_pkt(u_char *args_, const struct pcap_pkthdr *hdr, const u_char *packet)
561 struct pcap_arg *args = (struct pcap_arg *)args_;
563 if (args->size < hdr->len) {
564 VLOG_WARN_RL(&rl, "packet truncated");
565 args->retval = args->size;
567 args->retval = hdr->len;
570 /* copy the packet to our buffer */
571 memcpy(args->data, packet, args->retval);
575 * This function attempts to receive a packet from the specified network
576 * device. It is assumed that the network device is a system device or a tap
577 * device opened as a system one. In this case the read operation is performed
581 netdev_rx_bsd_recv_pcap(struct netdev_rx_bsd *rx, void *data, size_t size)
586 /* prepare the pcap argument to store the packet */
591 ret = pcap_dispatch(rx->pcap_handle, 1, proc_pkt, (u_char *) &arg);
594 return arg.retval; /* arg.retval < 0 is handled in the caller */
597 if (errno == EINTR) {
607 * This function attempts to receive a packet from the specified network
608 * device. It is assumed that the network device is a tap device and
609 * 'rx->fd' is initialized with the tap file descriptor.
612 netdev_rx_bsd_recv_tap(struct netdev_rx_bsd *rx, void *data, size_t size)
615 ssize_t retval = read(rx->fd, data, size);
618 } else if (errno != EINTR) {
619 if (errno != EAGAIN) {
620 VLOG_WARN_RL(&rl, "error receiving Ethernet packet on %s: %s",
621 strerror(errno), netdev_rx_get_name(&rx->up));
630 netdev_rx_bsd_recv(struct netdev_rx *rx_, void *data, size_t size)
632 struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_);
634 return (rx->pcap_handle
635 ? netdev_rx_bsd_recv_pcap(rx, data, size)
636 : netdev_rx_bsd_recv_tap(rx, data, size));
640 * Registers with the poll loop to wake up from the next call to poll_block()
641 * when a packet is ready to be received with netdev_rx_recv() on 'rx'.
644 netdev_rx_bsd_wait(struct netdev_rx *rx_)
646 struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_);
648 poll_fd_wait(rx->fd, POLLIN);
651 /* Discards all packets waiting to be received from 'rx'. */
653 netdev_rx_bsd_drain(struct netdev_rx *rx_)
656 struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_);
658 strcpy(ifr.ifr_name, netdev_get_kernel_name(netdev_rx_get_netdev(rx_)));
659 if (ioctl(rx->fd, BIOCFLUSH, &ifr) == -1) {
660 VLOG_DBG_RL(&rl, "%s: ioctl(BIOCFLUSH) failed: %s",
661 netdev_rx_get_name(rx_), strerror(errno));
668 * Send a packet on the specified network device. The device could be either a
669 * system or a tap device.
672 netdev_bsd_send(struct netdev *netdev_, const void *data, size_t size)
674 struct netdev_bsd *dev = netdev_bsd_cast(netdev_);
675 const char *name = netdev_get_name(netdev_);
677 if (dev->tap_fd < 0 && !dev->pcap) {
678 int error = netdev_bsd_open_pcap(name, &dev->pcap, &dev->fd);
686 if (dev->tap_fd >= 0) {
687 retval = write(dev->tap_fd, data, size);
689 retval = pcap_inject(dev->pcap, data, size);
692 if (errno == EINTR) {
694 } else if (errno != EAGAIN) {
695 VLOG_WARN_RL(&rl, "error sending Ethernet packet on %s: %s",
696 name, strerror(errno));
699 } else if (retval != size) {
700 VLOG_WARN_RL(&rl, "sent partial Ethernet packet (%zd bytes of "
701 "%zu) on %s", retval, size, name);
710 * Registers with the poll loop to wake up from the next call to poll_block()
711 * when the packet transmission queue has sufficient room to transmit a packet
712 * with netdev_send().
715 netdev_bsd_send_wait(struct netdev *netdev_)
717 struct netdev_bsd *dev = netdev_bsd_cast(netdev_);
719 if (dev->tap_fd >= 0) {
720 /* TAP device always accepts packets. */
721 poll_immediate_wake();
722 } else if (dev->pcap) {
723 poll_fd_wait(dev->fd, POLLOUT);
725 /* We haven't even tried to send a packet yet. */
726 poll_immediate_wake();
731 * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful,
732 * otherwise a positive errno value.
735 netdev_bsd_set_etheraddr(struct netdev *netdev_,
736 const uint8_t mac[ETH_ADDR_LEN])
738 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
741 if (!(netdev->cache_valid & VALID_ETHERADDR)
742 || !eth_addr_equals(netdev->etheraddr, mac)) {
743 error = set_etheraddr(netdev_get_kernel_name(netdev_), AF_LINK,
746 netdev->cache_valid |= VALID_ETHERADDR;
747 memcpy(netdev->etheraddr, mac, ETH_ADDR_LEN);
748 netdev_bsd_changed(netdev);
757 * Returns a pointer to 'netdev''s MAC address. The caller must not modify or
758 * free the returned buffer.
761 netdev_bsd_get_etheraddr(const struct netdev *netdev_,
762 uint8_t mac[ETH_ADDR_LEN])
764 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
766 if (!(netdev->cache_valid & VALID_ETHERADDR)) {
767 int error = get_etheraddr(netdev_get_kernel_name(netdev_),
772 netdev->cache_valid |= VALID_ETHERADDR;
774 memcpy(mac, netdev->etheraddr, ETH_ADDR_LEN);
780 * Returns the maximum size of transmitted (and received) packets on 'netdev',
781 * in bytes, not including the hardware header; thus, this is typically 1500
782 * bytes for Ethernet devices.
785 netdev_bsd_get_mtu(const struct netdev *netdev_, int *mtup)
787 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
789 if (!(netdev->cache_valid & VALID_MTU)) {
793 error = netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_), &ifr,
794 SIOCGIFMTU, "SIOCGIFMTU");
798 netdev->mtu = ifr.ifr_mtu;
799 netdev->cache_valid |= VALID_MTU;
807 netdev_bsd_get_ifindex(const struct netdev *netdev)
811 error = get_ifindex(netdev, &ifindex);
812 return error ? -error : ifindex;
816 netdev_bsd_get_carrier(const struct netdev *netdev_, bool *carrier)
818 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
820 if (!(netdev->cache_valid & VALID_CARRIER)) {
821 struct ifmediareq ifmr;
823 memset(&ifmr, 0, sizeof(ifmr));
824 strncpy(ifmr.ifm_name, netdev_get_kernel_name(netdev_),
825 sizeof ifmr.ifm_name);
827 if (ioctl(af_inet_sock, SIOCGIFMEDIA, &ifmr) == -1) {
828 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
829 netdev_get_name(netdev_), strerror(errno));
833 netdev->carrier = (ifmr.ifm_status & IFM_ACTIVE) == IFM_ACTIVE;
834 netdev->cache_valid |= VALID_CARRIER;
836 /* If the interface doesn't report whether the media is active,
837 * just assume it is active. */
838 if ((ifmr.ifm_status & IFM_AVALID) == 0) {
839 netdev->carrier = true;
842 *carrier = netdev->carrier;
847 /* Retrieves current device stats for 'netdev'. */
849 netdev_bsd_get_stats(const struct netdev *netdev_ OVS_UNUSED,
850 struct netdev_stats *stats)
852 #if defined(__FreeBSD__)
856 struct ifmibdata ifmd;
861 mib[2] = NETLINK_GENERIC;
862 mib[3] = IFMIB_SYSTEM;
863 mib[4] = IFMIB_IFCOUNT;
865 len = sizeof(if_count);
867 if (sysctl(mib, 5, &if_count, &len, (void *)0, 0) == -1) {
868 VLOG_DBG_RL(&rl, "%s: sysctl failed: %s",
869 netdev_get_name(netdev_), strerror(errno));
873 mib[5] = IFDATA_GENERAL;
874 mib[3] = IFMIB_IFDATA;
876 for (i = 1; i <= if_count; i++) {
878 if (sysctl(mib, 6, &ifmd, &len, (void *)0, 0) == -1) {
879 VLOG_DBG_RL(&rl, "%s: sysctl failed: %s",
880 netdev_get_name(netdev_), strerror(errno));
882 } else if (!strcmp(ifmd.ifmd_name, netdev_get_name(netdev_))) {
883 stats->rx_packets = ifmd.ifmd_data.ifi_ipackets;
884 stats->tx_packets = ifmd.ifmd_data.ifi_opackets;
885 stats->rx_bytes = ifmd.ifmd_data.ifi_ibytes;
886 stats->tx_bytes = ifmd.ifmd_data.ifi_obytes;
887 stats->rx_errors = ifmd.ifmd_data.ifi_ierrors;
888 stats->tx_errors = ifmd.ifmd_data.ifi_oerrors;
889 stats->rx_dropped = ifmd.ifmd_data.ifi_iqdrops;
890 stats->tx_dropped = UINT64_MAX;
891 stats->multicast = ifmd.ifmd_data.ifi_imcasts;
892 stats->collisions = ifmd.ifmd_data.ifi_collisions;
894 stats->rx_length_errors = UINT64_MAX;
895 stats->rx_over_errors = UINT64_MAX;
896 stats->rx_crc_errors = UINT64_MAX;
897 stats->rx_frame_errors = UINT64_MAX;
898 stats->rx_fifo_errors = UINT64_MAX;
899 stats->rx_missed_errors = UINT64_MAX;
901 stats->tx_aborted_errors = UINT64_MAX;
902 stats->tx_carrier_errors = UINT64_MAX;
903 stats->tx_fifo_errors = UINT64_MAX;
904 stats->tx_heartbeat_errors = UINT64_MAX;
905 stats->tx_window_errors = UINT64_MAX;
913 memset(stats, 0, sizeof(*stats));
919 netdev_bsd_parse_media(int media)
921 uint32_t supported = 0;
922 bool half_duplex = media & IFM_HDX ? true : false;
924 switch (IFM_SUBTYPE(media)) {
929 supported |= half_duplex ? NETDEV_F_10MB_HD : NETDEV_F_10MB_FD;
930 supported |= NETDEV_F_COPPER;
934 supported |= half_duplex ? NETDEV_F_10MB_HD : NETDEV_F_10MB_FD;
935 supported |= NETDEV_F_FIBER;
942 supported |= half_duplex ? NETDEV_F_100MB_HD : NETDEV_F_100MB_FD;
943 supported |= NETDEV_F_COPPER;
947 supported |= half_duplex ? NETDEV_F_100MB_HD : NETDEV_F_100MB_FD;
948 supported |= NETDEV_F_FIBER;
953 supported |= half_duplex ? NETDEV_F_1GB_HD : NETDEV_F_1GB_FD;
954 supported |= NETDEV_F_COPPER;
959 supported |= half_duplex ? NETDEV_F_1GB_HD : NETDEV_F_1GB_FD;
960 supported |= NETDEV_F_FIBER;
964 supported |= NETDEV_F_10GB_FD;
965 supported |= NETDEV_F_COPPER;
970 supported |= NETDEV_F_10GB_FD;
971 supported |= NETDEV_F_FIBER;
978 if (IFM_SUBTYPE(media) == IFM_AUTO) {
979 supported |= NETDEV_F_AUTONEG;
982 if (media & IFM_ETH_FMASK) {
983 supported |= NETDEV_F_PAUSE;
991 * Stores the features supported by 'netdev' into each of '*current',
992 * '*advertised', '*supported', and '*peer' that are non-null. Each value is a
993 * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if
994 * successful, otherwise a positive errno value. On failure, all of the
995 * passed-in values are set to 0.
998 netdev_bsd_get_features(const struct netdev *netdev,
999 enum netdev_features *current, uint32_t *advertised,
1000 enum netdev_features *supported, uint32_t *peer)
1002 struct ifmediareq ifmr;
1008 /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */
1010 memset(&ifmr, 0, sizeof(ifmr));
1011 strncpy(ifmr.ifm_name, netdev_get_name(netdev), sizeof ifmr.ifm_name);
1013 /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the
1014 * number of supported modes, and a second with a buffer to retrieve
1016 if (ioctl(af_inet_sock, SIOCGIFMEDIA, &ifmr) == -1) {
1017 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1018 netdev_get_name(netdev), strerror(errno));
1022 media_list = xcalloc(ifmr.ifm_count, sizeof(int));
1023 ifmr.ifm_ulist = media_list;
1025 if (IFM_TYPE(ifmr.ifm_current) != IFM_ETHER) {
1026 VLOG_DBG_RL(&rl, "%s: doesn't appear to be ethernet",
1027 netdev_get_name(netdev));
1032 if (ioctl(af_inet_sock, SIOCGIFMEDIA, &ifmr) == -1) {
1033 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1034 netdev_get_name(netdev), strerror(errno));
1039 /* Current settings. */
1040 *current = netdev_bsd_parse_media(ifmr.ifm_active);
1042 /* Advertised features. */
1043 *advertised = netdev_bsd_parse_media(ifmr.ifm_current);
1045 /* Supported features. */
1047 for (i = 0; i < ifmr.ifm_count; i++) {
1048 *supported |= netdev_bsd_parse_media(ifmr.ifm_ulist[i]);
1051 /* Peer advertisements. */
1052 *peer = 0; /* XXX */
1061 * If 'netdev' has an assigned IPv4 address, sets '*in4' to that address (if
1062 * 'in4' is non-null) and returns true. Otherwise, returns false.
1065 netdev_bsd_get_in4(const struct netdev *netdev_, struct in_addr *in4,
1066 struct in_addr *netmask)
1068 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1070 if (!(netdev->cache_valid & VALID_IN4)) {
1071 const struct sockaddr_in *sin;
1075 ifr.ifr_addr.sa_family = AF_INET;
1076 error = netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_), &ifr,
1077 SIOCGIFADDR, "SIOCGIFADDR");
1082 sin = (struct sockaddr_in *) &ifr.ifr_addr;
1083 netdev->in4 = sin->sin_addr;
1084 netdev->cache_valid |= VALID_IN4;
1085 error = netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_), &ifr,
1086 SIOCGIFNETMASK, "SIOCGIFNETMASK");
1090 *netmask = ((struct sockaddr_in*)&ifr.ifr_addr)->sin_addr;
1094 return in4->s_addr == INADDR_ANY ? EADDRNOTAVAIL : 0;
1098 * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If
1099 * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a
1100 * positive errno value.
1103 netdev_bsd_set_in4(struct netdev *netdev_, struct in_addr addr,
1104 struct in_addr mask)
1106 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1109 error = do_set_addr(netdev_, SIOCSIFADDR, "SIOCSIFADDR", addr);
1111 netdev->cache_valid |= VALID_IN4;
1113 if (addr.s_addr != INADDR_ANY) {
1114 error = do_set_addr(netdev_, SIOCSIFNETMASK,
1115 "SIOCSIFNETMASK", mask);
1117 netdev_bsd_changed(netdev);
1123 netdev_bsd_get_in6(const struct netdev *netdev_, struct in6_addr *in6)
1125 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1126 if (!(netdev->cache_valid & VALID_IN6)) {
1127 struct ifaddrs *ifa, *head;
1128 struct sockaddr_in6 *sin6;
1129 const char *netdev_name = netdev_get_name(netdev_);
1131 if (getifaddrs(&head) != 0) {
1132 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name,
1137 for (ifa = head; ifa; ifa = ifa->ifa_next) {
1138 if (ifa->ifa_addr->sa_family == AF_INET6 &&
1139 !strcmp(ifa->ifa_name, netdev_name)) {
1140 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr;
1142 memcpy(&netdev->in6, &sin6->sin6_addr, sin6->sin6_len);
1143 netdev->cache_valid |= VALID_IN6;
1150 return EADDRNOTAVAIL;
1157 make_in4_sockaddr(struct sockaddr *sa, struct in_addr addr)
1159 struct sockaddr_in sin;
1160 memset(&sin, 0, sizeof sin);
1161 sin.sin_family = AF_INET;
1162 sin.sin_addr = addr;
1165 memset(sa, 0, sizeof *sa);
1166 memcpy(sa, &sin, sizeof sin);
1170 do_set_addr(struct netdev *netdev,
1171 int ioctl_nr, const char *ioctl_name, struct in_addr addr)
1174 make_in4_sockaddr(&ifr.ifr_addr, addr);
1175 return netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev), &ifr, ioctl_nr,
1180 nd_to_iff_flags(enum netdev_flags nd)
1183 if (nd & NETDEV_UP) {
1186 if (nd & NETDEV_PROMISC) {
1188 #if defined(IFF_PPROMISC)
1189 iff |= IFF_PPROMISC;
1196 iff_to_nd_flags(int iff)
1198 enum netdev_flags nd = 0;
1202 if (iff & IFF_PROMISC) {
1203 nd |= NETDEV_PROMISC;
1209 netdev_bsd_update_flags(struct netdev *netdev_, enum netdev_flags off,
1210 enum netdev_flags on, enum netdev_flags *old_flagsp)
1212 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1213 int old_flags, new_flags;
1216 error = get_flags(netdev_, &old_flags);
1218 *old_flagsp = iff_to_nd_flags(old_flags);
1219 new_flags = (old_flags & ~nd_to_iff_flags(off)) | nd_to_iff_flags(on);
1220 if (new_flags != old_flags) {
1221 error = set_flags(netdev_get_kernel_name(netdev_), new_flags);
1222 netdev_bsd_changed(netdev);
1229 netdev_bsd_change_seq(const struct netdev *netdev)
1231 return netdev_bsd_cast(netdev)->change_seq;
1235 const struct netdev_class netdev_bsd_class = {
1241 netdev_bsd_create_system,
1243 NULL, /* get_config */
1244 NULL, /* set_config */
1245 NULL, /* get_tunnel_config */
1250 netdev_bsd_send_wait,
1252 netdev_bsd_set_etheraddr,
1253 netdev_bsd_get_etheraddr,
1256 netdev_bsd_get_ifindex,
1257 netdev_bsd_get_carrier,
1258 NULL, /* get_carrier_resets */
1259 NULL, /* set_miimon_interval */
1260 netdev_bsd_get_stats,
1261 NULL, /* set_stats */
1263 netdev_bsd_get_features,
1264 NULL, /* set_advertisement */
1265 NULL, /* set_policing */
1266 NULL, /* get_qos_type */
1267 NULL, /* get_qos_capabilities */
1270 NULL, /* get_queue */
1271 NULL, /* set_queue */
1272 NULL, /* delete_queue */
1273 NULL, /* get_queue_stats */
1274 NULL, /* dump_queue */
1275 NULL, /* dump_queue_stats */
1280 NULL, /* add_router */
1281 NULL, /* get_next_hop */
1282 NULL, /* get_status */
1283 NULL, /* arp_lookup */
1285 netdev_bsd_update_flags,
1287 netdev_bsd_change_seq
1290 const struct netdev_class netdev_tap_class = {
1296 netdev_bsd_create_tap,
1298 NULL, /* get_config */
1299 NULL, /* set_config */
1300 NULL, /* get_tunnel_config */
1305 netdev_bsd_send_wait,
1307 netdev_bsd_set_etheraddr,
1308 netdev_bsd_get_etheraddr,
1311 netdev_bsd_get_ifindex,
1312 netdev_bsd_get_carrier,
1313 NULL, /* get_carrier_resets */
1314 NULL, /* set_miimon_interval */
1315 netdev_bsd_get_stats,
1316 NULL, /* set_stats */
1318 netdev_bsd_get_features,
1319 NULL, /* set_advertisement */
1320 NULL, /* set_policing */
1321 NULL, /* get_qos_type */
1322 NULL, /* get_qos_capabilities */
1325 NULL, /* get_queue */
1326 NULL, /* set_queue */
1327 NULL, /* delete_queue */
1328 NULL, /* get_queue_stats */
1329 NULL, /* dump_queue */
1330 NULL, /* dump_queue_stats */
1335 NULL, /* add_router */
1336 NULL, /* get_next_hop */
1337 NULL, /* get_status */
1338 NULL, /* arp_lookup */
1340 netdev_bsd_update_flags,
1342 netdev_bsd_change_seq
1345 static const struct netdev_rx_class netdev_rx_bsd_class = {
1346 netdev_rx_bsd_destroy,
1349 netdev_rx_bsd_drain,
1354 destroy_tap(int fd, const char *name)
1359 strcpy(ifr.ifr_name, name);
1360 /* XXX What to do if this call fails? */
1361 ioctl(af_inet_sock, SIOCIFDESTROY, &ifr);
1365 get_flags(const struct netdev *netdev, int *flags)
1370 error = netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev), &ifr,
1371 SIOCGIFFLAGS, "SIOCGIFFLAGS");
1373 *flags = ifr_get_flags(&ifr);
1379 set_flags(const char *name, int flags)
1383 ifr_set_flags(&ifr, flags);
1385 return netdev_bsd_do_ioctl(name, &ifr, SIOCSIFFLAGS, "SIOCSIFFLAGS");
1389 get_ifindex(const struct netdev *netdev_, int *ifindexp)
1391 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1393 if (!(netdev->cache_valid & VALID_IFINDEX)) {
1394 int ifindex = if_nametoindex(netdev_get_name(netdev_));
1398 netdev->cache_valid |= VALID_IFINDEX;
1399 netdev->ifindex = ifindex;
1401 *ifindexp = netdev->ifindex;
1406 get_etheraddr(const char *netdev_name, uint8_t ea[ETH_ADDR_LEN])
1408 struct ifaddrs *head;
1409 struct ifaddrs *ifa;
1410 struct sockaddr_dl *sdl;
1412 if (getifaddrs(&head) != 0) {
1413 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name,
1418 for (ifa = head; ifa; ifa = ifa->ifa_next) {
1419 if (ifa->ifa_addr->sa_family == AF_LINK) {
1420 if (!strcmp(ifa->ifa_name, netdev_name)) {
1421 sdl = (struct sockaddr_dl *)ifa->ifa_addr;
1423 memcpy(ea, LLADDR(sdl), sdl->sdl_alen);
1431 VLOG_ERR("could not find ethernet address for %s device", netdev_name);
1437 set_etheraddr(const char *netdev_name OVS_UNUSED, int hwaddr_family OVS_UNUSED,
1438 int hwaddr_len OVS_UNUSED,
1439 const uint8_t mac[ETH_ADDR_LEN] OVS_UNUSED)
1441 #if defined(__NetBSD__)
1442 return ENOTSUP; /* XXX */
1446 memset(&ifr, 0, sizeof ifr);
1447 strncpy(ifr.ifr_name, netdev_name, sizeof ifr.ifr_name);
1448 ifr.ifr_addr.sa_family = hwaddr_family;
1449 ifr.ifr_addr.sa_len = hwaddr_len;
1450 memcpy(ifr.ifr_addr.sa_data, mac, hwaddr_len);
1451 if (ioctl(af_inet_sock, SIOCSIFLLADDR, &ifr) < 0) {
1452 VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s",
1453 netdev_name, strerror(errno));
1461 netdev_bsd_do_ioctl(const char *name, struct ifreq *ifr, unsigned long cmd,
1462 const char *cmd_name)
1464 strncpy(ifr->ifr_name, name, sizeof ifr->ifr_name);
1465 if (ioctl(af_inet_sock, cmd, ifr) == -1) {
1466 VLOG_DBG_RL(&rl, "%s: ioctl(%s) failed: %s", name, cmd_name,
1474 ifr_get_flags(const struct ifreq *ifr)
1476 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1477 return (ifr.ifr_flagshigh << 16) | ifr.ifr_flags;
1479 return ifr.ifr_flags;
1484 ifr_set_flags(struct ifreq *ifr, int flags)
1486 ifr->ifr_flags = flags;
1487 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1488 ifr->ifr_flagshigh = flags >> 16;