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 #if defined(__NetBSD__)
109 /* AF_LINK socket used for netdev_bsd_get_stats and set_etheraddr */
110 static int af_link_sock = -1;
111 #endif /* defined(__NetBSD__) */
113 #define PCAP_SNAPLEN 2048
117 * Notifier used to invalidate device informations in case of status change.
119 * It will be registered with a 'rtbsd_notifier_register()' when the first
120 * device will be created with the call of either 'netdev_bsd_tap_create()' or
121 * 'netdev_bsd_system_create()'.
123 * The callback associated with this notifier ('netdev_bsd_cache_cb()') will
124 * invalidate cached information about the device.
126 static struct rtbsd_notifier netdev_bsd_cache_notifier;
127 static int cache_notifier_refcount;
129 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
131 static int netdev_bsd_do_ioctl(const char *, struct ifreq *, unsigned long cmd,
132 const char *cmd_name);
133 static void destroy_tap(int fd, const char *name);
134 static int get_flags(const struct netdev *, int *flagsp);
135 static int set_flags(const char *, int flags);
136 static int do_set_addr(struct netdev *netdev,
137 int ioctl_nr, const char *ioctl_name,
138 struct in_addr addr);
139 static int get_etheraddr(const char *netdev_name, uint8_t ea[ETH_ADDR_LEN]);
140 static int set_etheraddr(const char *netdev_name, int hwaddr_family,
141 int hwaddr_len, const uint8_t[ETH_ADDR_LEN]);
142 static int get_ifindex(const struct netdev *, int *ifindexp);
144 static int ifr_get_flags(const struct ifreq *);
145 static void ifr_set_flags(struct ifreq *, int flags);
147 static int netdev_bsd_init(void);
150 is_netdev_bsd_class(const struct netdev_class *netdev_class)
152 return netdev_class->init == netdev_bsd_init;
155 static struct netdev_bsd *
156 netdev_bsd_cast(const struct netdev *netdev)
158 ovs_assert(is_netdev_bsd_class(netdev_get_class(netdev)));
159 return CONTAINER_OF(netdev, struct netdev_bsd, up);
162 static struct netdev_rx_bsd *
163 netdev_rx_bsd_cast(const struct netdev_rx *rx)
165 netdev_rx_assert_class(rx, &netdev_rx_bsd_class);
166 return CONTAINER_OF(rx, struct netdev_rx_bsd, up);
170 netdev_get_kernel_name(const struct netdev *netdev)
172 return netdev_bsd_cast(netdev)->kernel_name;
175 /* Initialize the AF_INET socket used for ioctl operations */
177 netdev_bsd_init(void)
179 static int status = -1;
181 if (status >= 0) { /* already initialized */
185 af_inet_sock = socket(AF_INET, SOCK_DGRAM, 0);
186 status = af_inet_sock >= 0 ? 0 : errno;
188 VLOG_ERR("failed to create inet socket: %s", strerror(status));
192 #if defined(__NetBSD__)
193 af_link_sock = socket(AF_LINK, SOCK_DGRAM, 0);
194 status = af_link_sock >= 0 ? 0 : errno;
196 VLOG_ERR("failed to create link socket: %s", strerror(status));
200 #endif /* defined(__NetBSD__) */
206 * Perform periodic work needed by netdev. In BSD netdevs it checks for any
207 * interface status changes, and eventually calls all the user callbacks.
212 rtbsd_notifier_run();
216 * Arranges for poll_block() to wake up if the "run" member function needs to
220 netdev_bsd_wait(void)
222 rtbsd_notifier_wait();
226 netdev_bsd_changed(struct netdev_bsd *dev)
229 if (!dev->change_seq) {
234 /* Invalidate cache in case of interface status change. */
236 netdev_bsd_cache_cb(const struct rtbsd_change *change,
237 void *aux OVS_UNUSED)
239 struct netdev_bsd *dev;
242 struct netdev *base_dev = netdev_from_name(change->if_name);
245 const struct netdev_class *netdev_class =
246 netdev_get_class(base_dev);
248 if (is_netdev_bsd_class(netdev_class)) {
249 dev = netdev_bsd_cast(base_dev);
250 dev->cache_valid = 0;
251 netdev_bsd_changed(dev);
256 * XXX the API is lacking, we should be able to iterate on the list of
257 * netdevs without having to store the info in a temp shash.
259 struct shash device_shash;
260 struct shash_node *node;
262 shash_init(&device_shash);
263 netdev_get_devices(&netdev_bsd_class, &device_shash);
264 SHASH_FOR_EACH (node, &device_shash) {
266 dev->cache_valid = 0;
267 netdev_bsd_changed(dev);
269 shash_destroy(&device_shash);
274 cache_notifier_ref(void)
278 if (!cache_notifier_refcount) {
279 ret = rtbsd_notifier_register(&netdev_bsd_cache_notifier,
280 netdev_bsd_cache_cb, NULL);
285 cache_notifier_refcount++;
290 cache_notifier_unref(void)
292 cache_notifier_refcount--;
293 if (cache_notifier_refcount == 0) {
294 rtbsd_notifier_unregister(&netdev_bsd_cache_notifier);
299 /* Allocate a netdev_bsd structure */
301 netdev_bsd_create_system(const struct netdev_class *class, const char *name,
302 struct netdev **netdevp)
304 struct netdev_bsd *netdev;
305 enum netdev_flags flags;
308 error = cache_notifier_ref();
313 netdev = xzalloc(sizeof *netdev);
314 netdev->change_seq = 1;
315 netdev_init(&netdev->up, name, class);
317 netdev->kernel_name = xstrdup(name);
319 /* Verify that the netdev really exists by attempting to read its flags */
320 error = netdev_get_flags(&netdev->up, &flags);
321 if (error == ENXIO) {
322 netdev_uninit(&netdev->up, false);
324 cache_notifier_unref();
328 *netdevp = &netdev->up;
333 * Allocate a netdev_bsd structure with 'tap' class.
336 netdev_bsd_create_tap(const struct netdev_class *class, const char *name,
337 struct netdev **netdevp)
339 struct netdev_bsd *netdev = NULL;
342 char *kernel_name = NULL;
344 error = cache_notifier_ref();
349 /* allocate the device structure and set the internal flag */
350 netdev = xzalloc(sizeof *netdev);
352 memset(&ifr, 0, sizeof(ifr));
354 /* Create a tap device by opening /dev/tap. The TAPGIFNAME ioctl is used
355 * to retrieve the name of the tap device. */
356 netdev->tap_fd = open("/dev/tap", O_RDWR);
357 netdev->change_seq = 1;
358 if (netdev->tap_fd < 0) {
360 VLOG_WARN("opening \"/dev/tap\" failed: %s", strerror(error));
361 goto error_undef_notifier;
364 /* Retrieve tap name (e.g. tap0) */
365 if (ioctl(netdev->tap_fd, TAPGIFNAME, &ifr) == -1) {
366 /* XXX Need to destroy the device? */
368 goto error_undef_notifier;
371 /* Change the name of the tap device */
372 #if defined(SIOCSIFNAME)
373 ifr.ifr_data = (void *)name;
374 if (ioctl(af_inet_sock, SIOCSIFNAME, &ifr) == -1) {
376 destroy_tap(netdev->tap_fd, ifr.ifr_name);
377 goto error_undef_notifier;
379 kernel_name = xstrdup(name);
382 * NetBSD doesn't support inteface renaming.
384 VLOG_INFO("tap %s is created for bridge %s", ifr.ifr_name, name);
385 kernel_name = xstrdup(ifr.ifr_name);
388 /* set non-blocking. */
389 error = set_nonblocking(netdev->tap_fd);
391 destroy_tap(netdev->tap_fd, kernel_name);
392 goto error_undef_notifier;
396 ifr_set_flags(&ifr, IFF_UP);
397 strncpy(ifr.ifr_name, kernel_name, sizeof ifr.ifr_name);
398 if (ioctl(af_inet_sock, SIOCSIFFLAGS, &ifr) == -1) {
400 destroy_tap(netdev->tap_fd, kernel_name);
401 goto error_undef_notifier;
404 /* initialize the device structure and
405 * link the structure to its netdev */
406 netdev_init(&netdev->up, name, class);
407 netdev->kernel_name = kernel_name;
408 *netdevp = &netdev->up;
412 error_undef_notifier:
413 cache_notifier_unref();
421 netdev_bsd_destroy(struct netdev *netdev_)
423 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
425 cache_notifier_unref();
427 if (netdev->tap_fd >= 0) {
428 destroy_tap(netdev->tap_fd, netdev_get_kernel_name(netdev_));
431 pcap_close(netdev->pcap);
433 free(netdev->kernel_name);
438 netdev_bsd_open_pcap(const char *name, pcap_t **pcapp, int *fdp)
440 char errbuf[PCAP_ERRBUF_SIZE];
446 /* Open the pcap device. The device is opened in non-promiscuous mode
447 * because the interface flags are manually set by the caller. */
449 pcap = pcap_open_live(name, PCAP_SNAPLEN, 0, 1000, errbuf);
451 VLOG_ERR_RL(&rl, "%s: pcap_open_live failed: %s", name, errbuf);
455 if (errbuf[0] != '\0') {
456 VLOG_WARN_RL(&rl, "%s: pcap_open_live: %s", name, errbuf);
459 /* Get the underlying fd. */
460 fd = pcap_get_selectable_fd(pcap);
462 VLOG_WARN_RL(&rl, "%s: no selectable file descriptor", name);
467 /* Set non-blocking mode. Also the BIOCIMMEDIATE ioctl must be called
468 * on the file descriptor returned by pcap_get_selectable_fd to achieve
469 * a real non-blocking behaviour.*/
470 error = pcap_setnonblock(pcap, 1, errbuf);
476 /* This call assure that reads return immediately upon packet
477 * reception. Otherwise, a read will block until either the kernel
478 * buffer becomes full or a timeout occurs. */
479 if (ioctl(fd, BIOCIMMEDIATE, &one) < 0 ) {
480 VLOG_ERR_RL(&rl, "ioctl(BIOCIMMEDIATE) on %s device failed: %s",
481 name, strerror(errno));
486 /* Capture only incoming packets. */
487 error = pcap_setdirection(pcap, PCAP_D_IN);
507 netdev_bsd_rx_open(struct netdev *netdev_, struct netdev_rx **rxp)
509 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
511 struct netdev_rx_bsd *rx;
515 if (!strcmp(netdev_get_type(netdev_), "tap")) {
519 int error = netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_),
525 netdev_bsd_changed(netdev);
528 rx = xmalloc(sizeof *rx);
529 netdev_rx_init(&rx->up, netdev_, &netdev_rx_bsd_class);
530 rx->pcap_handle = pcap;
538 netdev_rx_bsd_destroy(struct netdev_rx *rx_)
540 struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_);
542 if (rx->pcap_handle) {
543 pcap_close(rx->pcap_handle);
548 /* The recv callback of the netdev class returns the number of bytes of the
551 * This can be done by the pcap_next() function. Unfortunately pcap_next() does
552 * not make difference between a missing packet on the capture interface and
553 * an error during the file capture. We can use the pcap_dispatch() function
554 * instead, which is able to distinguish between errors and null packet.
556 * To make pcap_dispatch() returns the number of bytes read from the interface
557 * we need to define the following callback and argument.
566 * This callback will be executed on every captured packet.
568 * If the packet captured by pcap_dispatch() does not fit the pcap buffer,
569 * pcap returns a truncated packet and we follow this behavior.
571 * The argument args->retval is the packet size in bytes.
574 proc_pkt(u_char *args_, const struct pcap_pkthdr *hdr, const u_char *packet)
576 struct pcap_arg *args = (struct pcap_arg *)args_;
578 if (args->size < hdr->len) {
579 VLOG_WARN_RL(&rl, "packet truncated");
580 args->retval = args->size;
582 args->retval = hdr->len;
585 /* copy the packet to our buffer */
586 memcpy(args->data, packet, args->retval);
590 * This function attempts to receive a packet from the specified network
591 * device. It is assumed that the network device is a system device or a tap
592 * device opened as a system one. In this case the read operation is performed
596 netdev_rx_bsd_recv_pcap(struct netdev_rx_bsd *rx, void *data, size_t size)
601 /* prepare the pcap argument to store the packet */
606 ret = pcap_dispatch(rx->pcap_handle, 1, proc_pkt, (u_char *) &arg);
609 return arg.retval; /* arg.retval < 0 is handled in the caller */
612 if (errno == EINTR) {
622 * This function attempts to receive a packet from the specified network
623 * device. It is assumed that the network device is a tap device and
624 * 'rx->fd' is initialized with the tap file descriptor.
627 netdev_rx_bsd_recv_tap(struct netdev_rx_bsd *rx, void *data, size_t size)
630 ssize_t retval = read(rx->fd, data, size);
633 } else if (errno != EINTR) {
634 if (errno != EAGAIN) {
635 VLOG_WARN_RL(&rl, "error receiving Ethernet packet on %s: %s",
636 strerror(errno), netdev_rx_get_name(&rx->up));
645 netdev_rx_bsd_recv(struct netdev_rx *rx_, void *data, size_t size)
647 struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_);
649 return (rx->pcap_handle
650 ? netdev_rx_bsd_recv_pcap(rx, data, size)
651 : netdev_rx_bsd_recv_tap(rx, data, size));
655 * Registers with the poll loop to wake up from the next call to poll_block()
656 * when a packet is ready to be received with netdev_rx_recv() on 'rx'.
659 netdev_rx_bsd_wait(struct netdev_rx *rx_)
661 struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_);
663 poll_fd_wait(rx->fd, POLLIN);
666 /* Discards all packets waiting to be received from 'rx'. */
668 netdev_rx_bsd_drain(struct netdev_rx *rx_)
671 struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_);
673 strcpy(ifr.ifr_name, netdev_get_kernel_name(netdev_rx_get_netdev(rx_)));
674 if (ioctl(rx->fd, BIOCFLUSH, &ifr) == -1) {
675 VLOG_DBG_RL(&rl, "%s: ioctl(BIOCFLUSH) failed: %s",
676 netdev_rx_get_name(rx_), strerror(errno));
683 * Send a packet on the specified network device. The device could be either a
684 * system or a tap device.
687 netdev_bsd_send(struct netdev *netdev_, const void *data, size_t size)
689 struct netdev_bsd *dev = netdev_bsd_cast(netdev_);
690 const char *name = netdev_get_name(netdev_);
692 if (dev->tap_fd < 0 && !dev->pcap) {
693 int error = netdev_bsd_open_pcap(name, &dev->pcap, &dev->fd);
701 if (dev->tap_fd >= 0) {
702 retval = write(dev->tap_fd, data, size);
704 retval = pcap_inject(dev->pcap, data, size);
707 if (errno == EINTR) {
709 } else if (errno != EAGAIN) {
710 VLOG_WARN_RL(&rl, "error sending Ethernet packet on %s: %s",
711 name, strerror(errno));
714 } else if (retval != size) {
715 VLOG_WARN_RL(&rl, "sent partial Ethernet packet (%zd bytes of "
716 "%zu) on %s", retval, size, name);
725 * Registers with the poll loop to wake up from the next call to poll_block()
726 * when the packet transmission queue has sufficient room to transmit a packet
727 * with netdev_send().
730 netdev_bsd_send_wait(struct netdev *netdev_)
732 struct netdev_bsd *dev = netdev_bsd_cast(netdev_);
734 if (dev->tap_fd >= 0) {
735 /* TAP device always accepts packets. */
736 poll_immediate_wake();
737 } else if (dev->pcap) {
738 poll_fd_wait(dev->fd, POLLOUT);
740 /* We haven't even tried to send a packet yet. */
741 poll_immediate_wake();
746 * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful,
747 * otherwise a positive errno value.
750 netdev_bsd_set_etheraddr(struct netdev *netdev_,
751 const uint8_t mac[ETH_ADDR_LEN])
753 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
756 if (!(netdev->cache_valid & VALID_ETHERADDR)
757 || !eth_addr_equals(netdev->etheraddr, mac)) {
758 error = set_etheraddr(netdev_get_kernel_name(netdev_), AF_LINK,
761 netdev->cache_valid |= VALID_ETHERADDR;
762 memcpy(netdev->etheraddr, mac, ETH_ADDR_LEN);
763 netdev_bsd_changed(netdev);
772 * Returns a pointer to 'netdev''s MAC address. The caller must not modify or
773 * free the returned buffer.
776 netdev_bsd_get_etheraddr(const struct netdev *netdev_,
777 uint8_t mac[ETH_ADDR_LEN])
779 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
781 if (!(netdev->cache_valid & VALID_ETHERADDR)) {
782 int error = get_etheraddr(netdev_get_kernel_name(netdev_),
787 netdev->cache_valid |= VALID_ETHERADDR;
789 memcpy(mac, netdev->etheraddr, ETH_ADDR_LEN);
795 * Returns the maximum size of transmitted (and received) packets on 'netdev',
796 * in bytes, not including the hardware header; thus, this is typically 1500
797 * bytes for Ethernet devices.
800 netdev_bsd_get_mtu(const struct netdev *netdev_, int *mtup)
802 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
804 if (!(netdev->cache_valid & VALID_MTU)) {
808 error = netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_), &ifr,
809 SIOCGIFMTU, "SIOCGIFMTU");
813 netdev->mtu = ifr.ifr_mtu;
814 netdev->cache_valid |= VALID_MTU;
822 netdev_bsd_get_ifindex(const struct netdev *netdev)
826 error = get_ifindex(netdev, &ifindex);
827 return error ? -error : ifindex;
831 netdev_bsd_get_carrier(const struct netdev *netdev_, bool *carrier)
833 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
835 if (!(netdev->cache_valid & VALID_CARRIER)) {
836 struct ifmediareq ifmr;
838 memset(&ifmr, 0, sizeof(ifmr));
839 strncpy(ifmr.ifm_name, netdev_get_kernel_name(netdev_),
840 sizeof ifmr.ifm_name);
842 if (ioctl(af_inet_sock, SIOCGIFMEDIA, &ifmr) == -1) {
843 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
844 netdev_get_name(netdev_), strerror(errno));
848 netdev->carrier = (ifmr.ifm_status & IFM_ACTIVE) == IFM_ACTIVE;
849 netdev->cache_valid |= VALID_CARRIER;
851 /* If the interface doesn't report whether the media is active,
852 * just assume it is active. */
853 if ((ifmr.ifm_status & IFM_AVALID) == 0) {
854 netdev->carrier = true;
857 *carrier = netdev->carrier;
862 /* Retrieves current device stats for 'netdev'. */
864 netdev_bsd_get_stats(const struct netdev *netdev_, struct netdev_stats *stats)
866 #if defined(__FreeBSD__)
870 struct ifmibdata ifmd;
875 mib[2] = NETLINK_GENERIC;
876 mib[3] = IFMIB_SYSTEM;
877 mib[4] = IFMIB_IFCOUNT;
879 len = sizeof(if_count);
881 if (sysctl(mib, 5, &if_count, &len, (void *)0, 0) == -1) {
882 VLOG_DBG_RL(&rl, "%s: sysctl failed: %s",
883 netdev_get_name(netdev_), strerror(errno));
887 mib[5] = IFDATA_GENERAL;
888 mib[3] = IFMIB_IFDATA;
890 for (i = 1; i <= if_count; i++) {
892 if (sysctl(mib, 6, &ifmd, &len, (void *)0, 0) == -1) {
893 VLOG_DBG_RL(&rl, "%s: sysctl failed: %s",
894 netdev_get_name(netdev_), strerror(errno));
896 } else if (!strcmp(ifmd.ifmd_name, netdev_get_name(netdev_))) {
897 stats->rx_packets = ifmd.ifmd_data.ifi_ipackets;
898 stats->tx_packets = ifmd.ifmd_data.ifi_opackets;
899 stats->rx_bytes = ifmd.ifmd_data.ifi_ibytes;
900 stats->tx_bytes = ifmd.ifmd_data.ifi_obytes;
901 stats->rx_errors = ifmd.ifmd_data.ifi_ierrors;
902 stats->tx_errors = ifmd.ifmd_data.ifi_oerrors;
903 stats->rx_dropped = ifmd.ifmd_data.ifi_iqdrops;
904 stats->tx_dropped = UINT64_MAX;
905 stats->multicast = ifmd.ifmd_data.ifi_imcasts;
906 stats->collisions = ifmd.ifmd_data.ifi_collisions;
908 stats->rx_length_errors = UINT64_MAX;
909 stats->rx_over_errors = UINT64_MAX;
910 stats->rx_crc_errors = UINT64_MAX;
911 stats->rx_frame_errors = UINT64_MAX;
912 stats->rx_fifo_errors = UINT64_MAX;
913 stats->rx_missed_errors = UINT64_MAX;
915 stats->tx_aborted_errors = UINT64_MAX;
916 stats->tx_carrier_errors = UINT64_MAX;
917 stats->tx_fifo_errors = UINT64_MAX;
918 stats->tx_heartbeat_errors = UINT64_MAX;
919 stats->tx_window_errors = UINT64_MAX;
925 #elif defined(__NetBSD__)
926 struct ifdatareq ifdr;
931 memset(&ifdr, 0, sizeof(ifdr));
932 strncpy(ifdr.ifdr_name, netdev_get_kernel_name(netdev_),
933 sizeof(ifdr.ifdr_name));
934 ret = ioctl(af_link_sock, SIOCGIFDATA, &ifdr);
939 ifd = &ifdr.ifdr_data;
941 * note: UINT64_MAX means unsupported
943 stats->rx_packets = ifd->ifi_ipackets;
944 stats->tx_packets = ifd->ifi_opackets;
945 stats->rx_bytes = ifd->ifi_obytes;
946 stats->tx_bytes = ifd->ifi_ibytes;
947 stats->rx_errors = ifd->ifi_ierrors;
948 stats->tx_errors = ifd->ifi_oerrors;
949 stats->rx_dropped = ifd->ifi_iqdrops;
950 stats->tx_dropped = UINT64_MAX;
951 stats->multicast = ifd->ifi_imcasts;
952 stats->collisions = ifd->ifi_collisions;
953 stats->rx_length_errors = UINT64_MAX;
954 stats->rx_over_errors = UINT64_MAX;
955 stats->rx_crc_errors = UINT64_MAX;
956 stats->rx_frame_errors = UINT64_MAX;
957 stats->rx_fifo_errors = UINT64_MAX;
958 stats->rx_missed_errors = UINT64_MAX;
959 stats->tx_aborted_errors = UINT64_MAX;
960 stats->tx_carrier_errors = UINT64_MAX;
961 stats->tx_fifo_errors = UINT64_MAX;
962 stats->tx_heartbeat_errors = UINT64_MAX;
963 stats->tx_window_errors = UINT64_MAX;
966 #error not implemented
971 netdev_bsd_parse_media(int media)
973 uint32_t supported = 0;
974 bool half_duplex = media & IFM_HDX ? true : false;
976 switch (IFM_SUBTYPE(media)) {
981 supported |= half_duplex ? NETDEV_F_10MB_HD : NETDEV_F_10MB_FD;
982 supported |= NETDEV_F_COPPER;
986 supported |= half_duplex ? NETDEV_F_10MB_HD : NETDEV_F_10MB_FD;
987 supported |= NETDEV_F_FIBER;
994 supported |= half_duplex ? NETDEV_F_100MB_HD : NETDEV_F_100MB_FD;
995 supported |= NETDEV_F_COPPER;
999 supported |= half_duplex ? NETDEV_F_100MB_HD : NETDEV_F_100MB_FD;
1000 supported |= NETDEV_F_FIBER;
1005 supported |= half_duplex ? NETDEV_F_1GB_HD : NETDEV_F_1GB_FD;
1006 supported |= NETDEV_F_COPPER;
1011 supported |= half_duplex ? NETDEV_F_1GB_HD : NETDEV_F_1GB_FD;
1012 supported |= NETDEV_F_FIBER;
1016 supported |= NETDEV_F_10GB_FD;
1017 supported |= NETDEV_F_COPPER;
1022 supported |= NETDEV_F_10GB_FD;
1023 supported |= NETDEV_F_FIBER;
1030 if (IFM_SUBTYPE(media) == IFM_AUTO) {
1031 supported |= NETDEV_F_AUTONEG;
1034 if (media & IFM_ETH_FMASK) {
1035 supported |= NETDEV_F_PAUSE;
1043 * Stores the features supported by 'netdev' into each of '*current',
1044 * '*advertised', '*supported', and '*peer' that are non-null. Each value is a
1045 * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if
1046 * successful, otherwise a positive errno value. On failure, all of the
1047 * passed-in values are set to 0.
1050 netdev_bsd_get_features(const struct netdev *netdev,
1051 enum netdev_features *current, uint32_t *advertised,
1052 enum netdev_features *supported, uint32_t *peer)
1054 struct ifmediareq ifmr;
1060 /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */
1062 memset(&ifmr, 0, sizeof(ifmr));
1063 strncpy(ifmr.ifm_name, netdev_get_name(netdev), sizeof ifmr.ifm_name);
1065 /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the
1066 * number of supported modes, and a second with a buffer to retrieve
1068 if (ioctl(af_inet_sock, SIOCGIFMEDIA, &ifmr) == -1) {
1069 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1070 netdev_get_name(netdev), strerror(errno));
1074 media_list = xcalloc(ifmr.ifm_count, sizeof(int));
1075 ifmr.ifm_ulist = media_list;
1077 if (IFM_TYPE(ifmr.ifm_current) != IFM_ETHER) {
1078 VLOG_DBG_RL(&rl, "%s: doesn't appear to be ethernet",
1079 netdev_get_name(netdev));
1084 if (ioctl(af_inet_sock, SIOCGIFMEDIA, &ifmr) == -1) {
1085 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1086 netdev_get_name(netdev), strerror(errno));
1091 /* Current settings. */
1092 *current = netdev_bsd_parse_media(ifmr.ifm_active);
1094 /* Advertised features. */
1095 *advertised = netdev_bsd_parse_media(ifmr.ifm_current);
1097 /* Supported features. */
1099 for (i = 0; i < ifmr.ifm_count; i++) {
1100 *supported |= netdev_bsd_parse_media(ifmr.ifm_ulist[i]);
1103 /* Peer advertisements. */
1104 *peer = 0; /* XXX */
1113 * If 'netdev' has an assigned IPv4 address, sets '*in4' to that address (if
1114 * 'in4' is non-null) and returns true. Otherwise, returns false.
1117 netdev_bsd_get_in4(const struct netdev *netdev_, struct in_addr *in4,
1118 struct in_addr *netmask)
1120 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1122 if (!(netdev->cache_valid & VALID_IN4)) {
1123 const struct sockaddr_in *sin;
1127 ifr.ifr_addr.sa_family = AF_INET;
1128 error = netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_), &ifr,
1129 SIOCGIFADDR, "SIOCGIFADDR");
1134 sin = (struct sockaddr_in *) &ifr.ifr_addr;
1135 netdev->in4 = sin->sin_addr;
1136 netdev->cache_valid |= VALID_IN4;
1137 error = netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_), &ifr,
1138 SIOCGIFNETMASK, "SIOCGIFNETMASK");
1142 *netmask = ((struct sockaddr_in*)&ifr.ifr_addr)->sin_addr;
1146 return in4->s_addr == INADDR_ANY ? EADDRNOTAVAIL : 0;
1150 * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If
1151 * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a
1152 * positive errno value.
1155 netdev_bsd_set_in4(struct netdev *netdev_, struct in_addr addr,
1156 struct in_addr mask)
1158 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1161 error = do_set_addr(netdev_, SIOCSIFADDR, "SIOCSIFADDR", addr);
1163 netdev->cache_valid |= VALID_IN4;
1165 if (addr.s_addr != INADDR_ANY) {
1166 error = do_set_addr(netdev_, SIOCSIFNETMASK,
1167 "SIOCSIFNETMASK", mask);
1169 netdev_bsd_changed(netdev);
1175 netdev_bsd_get_in6(const struct netdev *netdev_, struct in6_addr *in6)
1177 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1178 if (!(netdev->cache_valid & VALID_IN6)) {
1179 struct ifaddrs *ifa, *head;
1180 struct sockaddr_in6 *sin6;
1181 const char *netdev_name = netdev_get_name(netdev_);
1183 if (getifaddrs(&head) != 0) {
1184 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name,
1189 for (ifa = head; ifa; ifa = ifa->ifa_next) {
1190 if (ifa->ifa_addr->sa_family == AF_INET6 &&
1191 !strcmp(ifa->ifa_name, netdev_name)) {
1192 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr;
1194 memcpy(&netdev->in6, &sin6->sin6_addr, sin6->sin6_len);
1195 netdev->cache_valid |= VALID_IN6;
1202 return EADDRNOTAVAIL;
1209 make_in4_sockaddr(struct sockaddr *sa, struct in_addr addr)
1211 struct sockaddr_in sin;
1212 memset(&sin, 0, sizeof sin);
1213 sin.sin_family = AF_INET;
1214 sin.sin_addr = addr;
1217 memset(sa, 0, sizeof *sa);
1218 memcpy(sa, &sin, sizeof sin);
1222 do_set_addr(struct netdev *netdev,
1223 int ioctl_nr, const char *ioctl_name, struct in_addr addr)
1226 make_in4_sockaddr(&ifr.ifr_addr, addr);
1227 return netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev), &ifr, ioctl_nr,
1232 nd_to_iff_flags(enum netdev_flags nd)
1235 if (nd & NETDEV_UP) {
1238 if (nd & NETDEV_PROMISC) {
1240 #if defined(IFF_PPROMISC)
1241 iff |= IFF_PPROMISC;
1248 iff_to_nd_flags(int iff)
1250 enum netdev_flags nd = 0;
1254 if (iff & IFF_PROMISC) {
1255 nd |= NETDEV_PROMISC;
1261 netdev_bsd_update_flags(struct netdev *netdev_, enum netdev_flags off,
1262 enum netdev_flags on, enum netdev_flags *old_flagsp)
1264 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1265 int old_flags, new_flags;
1268 error = get_flags(netdev_, &old_flags);
1270 *old_flagsp = iff_to_nd_flags(old_flags);
1271 new_flags = (old_flags & ~nd_to_iff_flags(off)) | nd_to_iff_flags(on);
1272 if (new_flags != old_flags) {
1273 error = set_flags(netdev_get_kernel_name(netdev_), new_flags);
1274 netdev_bsd_changed(netdev);
1281 netdev_bsd_change_seq(const struct netdev *netdev)
1283 return netdev_bsd_cast(netdev)->change_seq;
1287 const struct netdev_class netdev_bsd_class = {
1293 netdev_bsd_create_system,
1295 NULL, /* get_config */
1296 NULL, /* set_config */
1297 NULL, /* get_tunnel_config */
1302 netdev_bsd_send_wait,
1304 netdev_bsd_set_etheraddr,
1305 netdev_bsd_get_etheraddr,
1308 netdev_bsd_get_ifindex,
1309 netdev_bsd_get_carrier,
1310 NULL, /* get_carrier_resets */
1311 NULL, /* set_miimon_interval */
1312 netdev_bsd_get_stats,
1313 NULL, /* set_stats */
1315 netdev_bsd_get_features,
1316 NULL, /* set_advertisement */
1317 NULL, /* set_policing */
1318 NULL, /* get_qos_type */
1319 NULL, /* get_qos_capabilities */
1322 NULL, /* get_queue */
1323 NULL, /* set_queue */
1324 NULL, /* delete_queue */
1325 NULL, /* get_queue_stats */
1326 NULL, /* dump_queue */
1327 NULL, /* dump_queue_stats */
1332 NULL, /* add_router */
1333 NULL, /* get_next_hop */
1334 NULL, /* get_status */
1335 NULL, /* arp_lookup */
1337 netdev_bsd_update_flags,
1339 netdev_bsd_change_seq
1342 const struct netdev_class netdev_tap_class = {
1348 netdev_bsd_create_tap,
1350 NULL, /* get_config */
1351 NULL, /* set_config */
1352 NULL, /* get_tunnel_config */
1357 netdev_bsd_send_wait,
1359 netdev_bsd_set_etheraddr,
1360 netdev_bsd_get_etheraddr,
1363 netdev_bsd_get_ifindex,
1364 netdev_bsd_get_carrier,
1365 NULL, /* get_carrier_resets */
1366 NULL, /* set_miimon_interval */
1367 netdev_bsd_get_stats,
1368 NULL, /* set_stats */
1370 netdev_bsd_get_features,
1371 NULL, /* set_advertisement */
1372 NULL, /* set_policing */
1373 NULL, /* get_qos_type */
1374 NULL, /* get_qos_capabilities */
1377 NULL, /* get_queue */
1378 NULL, /* set_queue */
1379 NULL, /* delete_queue */
1380 NULL, /* get_queue_stats */
1381 NULL, /* dump_queue */
1382 NULL, /* dump_queue_stats */
1387 NULL, /* add_router */
1388 NULL, /* get_next_hop */
1389 NULL, /* get_status */
1390 NULL, /* arp_lookup */
1392 netdev_bsd_update_flags,
1394 netdev_bsd_change_seq
1397 static const struct netdev_rx_class netdev_rx_bsd_class = {
1398 netdev_rx_bsd_destroy,
1401 netdev_rx_bsd_drain,
1406 destroy_tap(int fd, const char *name)
1411 strcpy(ifr.ifr_name, name);
1412 /* XXX What to do if this call fails? */
1413 ioctl(af_inet_sock, SIOCIFDESTROY, &ifr);
1417 get_flags(const struct netdev *netdev, int *flags)
1422 error = netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev), &ifr,
1423 SIOCGIFFLAGS, "SIOCGIFFLAGS");
1425 *flags = ifr_get_flags(&ifr);
1431 set_flags(const char *name, int flags)
1435 ifr_set_flags(&ifr, flags);
1437 return netdev_bsd_do_ioctl(name, &ifr, SIOCSIFFLAGS, "SIOCSIFFLAGS");
1441 get_ifindex(const struct netdev *netdev_, int *ifindexp)
1443 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1445 if (!(netdev->cache_valid & VALID_IFINDEX)) {
1446 int ifindex = if_nametoindex(netdev_get_name(netdev_));
1450 netdev->cache_valid |= VALID_IFINDEX;
1451 netdev->ifindex = ifindex;
1453 *ifindexp = netdev->ifindex;
1458 get_etheraddr(const char *netdev_name, uint8_t ea[ETH_ADDR_LEN])
1460 struct ifaddrs *head;
1461 struct ifaddrs *ifa;
1462 struct sockaddr_dl *sdl;
1464 if (getifaddrs(&head) != 0) {
1465 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name,
1470 for (ifa = head; ifa; ifa = ifa->ifa_next) {
1471 if (ifa->ifa_addr->sa_family == AF_LINK) {
1472 if (!strcmp(ifa->ifa_name, netdev_name)) {
1473 sdl = (struct sockaddr_dl *)ifa->ifa_addr;
1475 memcpy(ea, LLADDR(sdl), sdl->sdl_alen);
1483 VLOG_ERR("could not find ethernet address for %s device", netdev_name);
1489 set_etheraddr(const char *netdev_name OVS_UNUSED, int hwaddr_family OVS_UNUSED,
1490 int hwaddr_len OVS_UNUSED,
1491 const uint8_t mac[ETH_ADDR_LEN] OVS_UNUSED)
1493 #if defined(__FreeBSD__)
1496 memset(&ifr, 0, sizeof ifr);
1497 strncpy(ifr.ifr_name, netdev_name, sizeof ifr.ifr_name);
1498 ifr.ifr_addr.sa_family = hwaddr_family;
1499 ifr.ifr_addr.sa_len = hwaddr_len;
1500 memcpy(ifr.ifr_addr.sa_data, mac, hwaddr_len);
1501 if (ioctl(af_inet_sock, SIOCSIFLLADDR, &ifr) < 0) {
1502 VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s",
1503 netdev_name, strerror(errno));
1507 #elif defined(__NetBSD__)
1508 struct if_laddrreq req;
1509 struct sockaddr_dl *sdl;
1510 struct sockaddr_storage oldaddr;
1514 * get the old address, add new one, and then remove old one.
1517 if (hwaddr_len != ETH_ADDR_LEN) {
1518 /* just to be safe about sockaddr storage size */
1521 memset(&req, 0, sizeof(req));
1522 strncpy(req.iflr_name, netdev_name, sizeof(req.iflr_name));
1523 req.addr.ss_len = sizeof(req.addr);
1524 req.addr.ss_family = hwaddr_family;
1525 sdl = (struct sockaddr_dl *)&req.addr;
1526 sdl->sdl_alen = hwaddr_len;
1527 ret = ioctl(af_link_sock, SIOCGLIFADDR, &req);
1531 if (!memcmp(&sdl->sdl_data[sdl->sdl_nlen], mac, hwaddr_len)) {
1536 memset(&req, 0, sizeof(req));
1537 strncpy(req.iflr_name, netdev_name, sizeof(req.iflr_name));
1538 req.flags = IFLR_ACTIVE;
1539 sdl = (struct sockaddr_dl *)&req.addr;
1540 sdl->sdl_len = offsetof(struct sockaddr_dl, sdl_data) + hwaddr_len;
1541 sdl->sdl_alen = hwaddr_len;
1542 sdl->sdl_family = hwaddr_family;
1543 memcpy(sdl->sdl_data, mac, hwaddr_len);
1544 ret = ioctl(af_link_sock, SIOCALIFADDR, &req);
1549 memset(&req, 0, sizeof(req));
1550 strncpy(req.iflr_name, netdev_name, sizeof(req.iflr_name));
1552 ret = ioctl(af_link_sock, SIOCDLIFADDR, &req);
1558 #error not implemented
1563 netdev_bsd_do_ioctl(const char *name, struct ifreq *ifr, unsigned long cmd,
1564 const char *cmd_name)
1566 strncpy(ifr->ifr_name, name, sizeof ifr->ifr_name);
1567 if (ioctl(af_inet_sock, cmd, ifr) == -1) {
1568 VLOG_DBG_RL(&rl, "%s: ioctl(%s) failed: %s", name, cmd_name,
1576 ifr_get_flags(const struct ifreq *ifr)
1578 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1579 return (ifr.ifr_flagshigh << 16) | ifr.ifr_flags;
1581 return ifr.ifr_flags;
1586 ifr_set_flags(struct ifreq *ifr, int flags)
1588 ifr->ifr_flags = flags;
1589 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1590 ifr->ifr_flagshigh = flags >> 16;