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 af_link_sock = socket(AF_LINK, SOCK_DGRAM, 0);
193 status = af_link_sock >= 0 ? 0 : errno;
195 VLOG_ERR("failed to create link socket: %s", strerror(status));
204 * Perform periodic work needed by netdev. In BSD netdevs it checks for any
205 * interface status changes, and eventually calls all the user callbacks.
210 rtbsd_notifier_run();
214 * Arranges for poll_block() to wake up if the "run" member function needs to
218 netdev_bsd_wait(void)
220 rtbsd_notifier_wait();
224 netdev_bsd_changed(struct netdev_bsd *dev)
227 if (!dev->change_seq) {
232 /* Invalidate cache in case of interface status change. */
234 netdev_bsd_cache_cb(const struct rtbsd_change *change,
235 void *aux OVS_UNUSED)
237 struct netdev_bsd *dev;
240 struct netdev *base_dev = netdev_from_name(change->if_name);
243 const struct netdev_class *netdev_class =
244 netdev_get_class(base_dev);
246 if (is_netdev_bsd_class(netdev_class)) {
247 dev = netdev_bsd_cast(base_dev);
248 dev->cache_valid = 0;
249 netdev_bsd_changed(dev);
254 * XXX the API is lacking, we should be able to iterate on the list of
255 * netdevs without having to store the info in a temp shash.
257 struct shash device_shash;
258 struct shash_node *node;
260 shash_init(&device_shash);
261 netdev_get_devices(&netdev_bsd_class, &device_shash);
262 SHASH_FOR_EACH (node, &device_shash) {
264 dev->cache_valid = 0;
265 netdev_bsd_changed(dev);
267 shash_destroy(&device_shash);
272 cache_notifier_ref(void)
276 if (!cache_notifier_refcount) {
277 ret = rtbsd_notifier_register(&netdev_bsd_cache_notifier,
278 netdev_bsd_cache_cb, NULL);
283 cache_notifier_refcount++;
288 cache_notifier_unref(void)
290 cache_notifier_refcount--;
291 if (cache_notifier_refcount == 0) {
292 rtbsd_notifier_unregister(&netdev_bsd_cache_notifier);
297 /* Allocate a netdev_bsd structure */
299 netdev_bsd_create_system(const struct netdev_class *class, const char *name,
300 struct netdev **netdevp)
302 struct netdev_bsd *netdev;
303 enum netdev_flags flags;
306 error = cache_notifier_ref();
311 netdev = xzalloc(sizeof *netdev);
312 netdev->change_seq = 1;
313 netdev_init(&netdev->up, name, class);
315 netdev->kernel_name = xstrdup(name);
317 /* Verify that the netdev really exists by attempting to read its flags */
318 error = netdev_get_flags(&netdev->up, &flags);
319 if (error == ENXIO) {
320 netdev_uninit(&netdev->up, false);
322 cache_notifier_unref();
326 *netdevp = &netdev->up;
331 * Allocate a netdev_bsd structure with 'tap' class.
334 netdev_bsd_create_tap(const struct netdev_class *class, const char *name,
335 struct netdev **netdevp)
337 struct netdev_bsd *netdev = NULL;
340 char *kernel_name = NULL;
342 error = cache_notifier_ref();
347 /* allocate the device structure and set the internal flag */
348 netdev = xzalloc(sizeof *netdev);
350 memset(&ifr, 0, sizeof(ifr));
352 /* Create a tap device by opening /dev/tap. The TAPGIFNAME ioctl is used
353 * to retrieve the name of the tap device. */
354 netdev->tap_fd = open("/dev/tap", O_RDWR);
355 netdev->change_seq = 1;
356 if (netdev->tap_fd < 0) {
358 VLOG_WARN("opening \"/dev/tap\" failed: %s", strerror(error));
359 goto error_undef_notifier;
362 /* Retrieve tap name (e.g. tap0) */
363 if (ioctl(netdev->tap_fd, TAPGIFNAME, &ifr) == -1) {
364 /* XXX Need to destroy the device? */
366 goto error_undef_notifier;
369 /* Change the name of the tap device */
370 #if defined(SIOCSIFNAME)
371 ifr.ifr_data = (void *)name;
372 if (ioctl(af_inet_sock, SIOCSIFNAME, &ifr) == -1) {
374 destroy_tap(netdev->tap_fd, ifr.ifr_name);
375 goto error_undef_notifier;
377 kernel_name = xstrdup(name);
380 * NetBSD doesn't support inteface renaming.
382 VLOG_INFO("tap %s is created for bridge %s", ifr.ifr_name, name);
383 kernel_name = xstrdup(ifr.ifr_name);
386 /* set non-blocking. */
387 error = set_nonblocking(netdev->tap_fd);
389 destroy_tap(netdev->tap_fd, kernel_name);
390 goto error_undef_notifier;
394 ifr_set_flags(&ifr, IFF_UP);
395 strncpy(ifr.ifr_name, kernel_name, sizeof ifr.ifr_name);
396 if (ioctl(af_inet_sock, SIOCSIFFLAGS, &ifr) == -1) {
398 destroy_tap(netdev->tap_fd, kernel_name);
399 goto error_undef_notifier;
402 /* initialize the device structure and
403 * link the structure to its netdev */
404 netdev_init(&netdev->up, name, class);
405 netdev->kernel_name = kernel_name;
406 *netdevp = &netdev->up;
410 error_undef_notifier:
411 cache_notifier_unref();
419 netdev_bsd_destroy(struct netdev *netdev_)
421 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
423 cache_notifier_unref();
425 if (netdev->tap_fd >= 0) {
426 destroy_tap(netdev->tap_fd, netdev_get_kernel_name(netdev_));
429 pcap_close(netdev->pcap);
431 free(netdev->kernel_name);
436 netdev_bsd_open_pcap(const char *name, pcap_t **pcapp, int *fdp)
438 char errbuf[PCAP_ERRBUF_SIZE];
444 /* Open the pcap device. The device is opened in non-promiscuous mode
445 * because the interface flags are manually set by the caller. */
447 pcap = pcap_open_live(name, PCAP_SNAPLEN, 0, 1000, errbuf);
449 VLOG_ERR_RL(&rl, "%s: pcap_open_live failed: %s", name, errbuf);
453 if (errbuf[0] != '\0') {
454 VLOG_WARN_RL(&rl, "%s: pcap_open_live: %s", name, errbuf);
457 /* Get the underlying fd. */
458 fd = pcap_get_selectable_fd(pcap);
460 VLOG_WARN_RL(&rl, "%s: no selectable file descriptor", name);
465 /* Set non-blocking mode. Also the BIOCIMMEDIATE ioctl must be called
466 * on the file descriptor returned by pcap_get_selectable_fd to achieve
467 * a real non-blocking behaviour.*/
468 error = pcap_setnonblock(pcap, 1, errbuf);
474 /* This call assure that reads return immediately upon packet
475 * reception. Otherwise, a read will block until either the kernel
476 * buffer becomes full or a timeout occurs. */
477 if (ioctl(fd, BIOCIMMEDIATE, &one) < 0 ) {
478 VLOG_ERR_RL(&rl, "ioctl(BIOCIMMEDIATE) on %s device failed: %s",
479 name, strerror(errno));
484 /* Capture only incoming packets. */
485 error = pcap_setdirection(pcap, PCAP_D_IN);
505 netdev_bsd_rx_open(struct netdev *netdev_, struct netdev_rx **rxp)
507 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
509 struct netdev_rx_bsd *rx;
513 if (!strcmp(netdev_get_type(netdev_), "tap")) {
517 int error = netdev_bsd_open_pcap(netdev_get_kernel_name(netdev_),
523 netdev_bsd_changed(netdev);
526 rx = xmalloc(sizeof *rx);
527 netdev_rx_init(&rx->up, netdev_, &netdev_rx_bsd_class);
528 rx->pcap_handle = pcap;
536 netdev_rx_bsd_destroy(struct netdev_rx *rx_)
538 struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_);
540 if (rx->pcap_handle) {
541 pcap_close(rx->pcap_handle);
546 /* The recv callback of the netdev class returns the number of bytes of the
549 * This can be done by the pcap_next() function. Unfortunately pcap_next() does
550 * not make difference between a missing packet on the capture interface and
551 * an error during the file capture. We can use the pcap_dispatch() function
552 * instead, which is able to distinguish between errors and null packet.
554 * To make pcap_dispatch() returns the number of bytes read from the interface
555 * we need to define the following callback and argument.
564 * This callback will be executed on every captured packet.
566 * If the packet captured by pcap_dispatch() does not fit the pcap buffer,
567 * pcap returns a truncated packet and we follow this behavior.
569 * The argument args->retval is the packet size in bytes.
572 proc_pkt(u_char *args_, const struct pcap_pkthdr *hdr, const u_char *packet)
574 struct pcap_arg *args = (struct pcap_arg *)args_;
576 if (args->size < hdr->len) {
577 VLOG_WARN_RL(&rl, "packet truncated");
578 args->retval = args->size;
580 args->retval = hdr->len;
583 /* copy the packet to our buffer */
584 memcpy(args->data, packet, args->retval);
588 * This function attempts to receive a packet from the specified network
589 * device. It is assumed that the network device is a system device or a tap
590 * device opened as a system one. In this case the read operation is performed
594 netdev_rx_bsd_recv_pcap(struct netdev_rx_bsd *rx, void *data, size_t size)
599 /* prepare the pcap argument to store the packet */
604 ret = pcap_dispatch(rx->pcap_handle, 1, proc_pkt, (u_char *) &arg);
607 return arg.retval; /* arg.retval < 0 is handled in the caller */
610 if (errno == EINTR) {
620 * This function attempts to receive a packet from the specified network
621 * device. It is assumed that the network device is a tap device and
622 * 'rx->fd' is initialized with the tap file descriptor.
625 netdev_rx_bsd_recv_tap(struct netdev_rx_bsd *rx, void *data, size_t size)
628 ssize_t retval = read(rx->fd, data, size);
631 } else if (errno != EINTR) {
632 if (errno != EAGAIN) {
633 VLOG_WARN_RL(&rl, "error receiving Ethernet packet on %s: %s",
634 strerror(errno), netdev_rx_get_name(&rx->up));
643 netdev_rx_bsd_recv(struct netdev_rx *rx_, void *data, size_t size)
645 struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_);
647 return (rx->pcap_handle
648 ? netdev_rx_bsd_recv_pcap(rx, data, size)
649 : netdev_rx_bsd_recv_tap(rx, data, size));
653 * Registers with the poll loop to wake up from the next call to poll_block()
654 * when a packet is ready to be received with netdev_rx_recv() on 'rx'.
657 netdev_rx_bsd_wait(struct netdev_rx *rx_)
659 struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_);
661 poll_fd_wait(rx->fd, POLLIN);
664 /* Discards all packets waiting to be received from 'rx'. */
666 netdev_rx_bsd_drain(struct netdev_rx *rx_)
669 struct netdev_rx_bsd *rx = netdev_rx_bsd_cast(rx_);
671 strcpy(ifr.ifr_name, netdev_get_kernel_name(netdev_rx_get_netdev(rx_)));
672 if (ioctl(rx->fd, BIOCFLUSH, &ifr) == -1) {
673 VLOG_DBG_RL(&rl, "%s: ioctl(BIOCFLUSH) failed: %s",
674 netdev_rx_get_name(rx_), strerror(errno));
681 * Send a packet on the specified network device. The device could be either a
682 * system or a tap device.
685 netdev_bsd_send(struct netdev *netdev_, const void *data, size_t size)
687 struct netdev_bsd *dev = netdev_bsd_cast(netdev_);
688 const char *name = netdev_get_name(netdev_);
690 if (dev->tap_fd < 0 && !dev->pcap) {
691 int error = netdev_bsd_open_pcap(name, &dev->pcap, &dev->fd);
699 if (dev->tap_fd >= 0) {
700 retval = write(dev->tap_fd, data, size);
702 retval = pcap_inject(dev->pcap, data, size);
705 if (errno == EINTR) {
707 } else if (errno != EAGAIN) {
708 VLOG_WARN_RL(&rl, "error sending Ethernet packet on %s: %s",
709 name, strerror(errno));
712 } else if (retval != size) {
713 VLOG_WARN_RL(&rl, "sent partial Ethernet packet (%zd bytes of "
714 "%zu) on %s", retval, size, name);
723 * Registers with the poll loop to wake up from the next call to poll_block()
724 * when the packet transmission queue has sufficient room to transmit a packet
725 * with netdev_send().
728 netdev_bsd_send_wait(struct netdev *netdev_)
730 struct netdev_bsd *dev = netdev_bsd_cast(netdev_);
732 if (dev->tap_fd >= 0) {
733 /* TAP device always accepts packets. */
734 poll_immediate_wake();
735 } else if (dev->pcap) {
736 poll_fd_wait(dev->fd, POLLOUT);
738 /* We haven't even tried to send a packet yet. */
739 poll_immediate_wake();
744 * Attempts to set 'netdev''s MAC address to 'mac'. Returns 0 if successful,
745 * otherwise a positive errno value.
748 netdev_bsd_set_etheraddr(struct netdev *netdev_,
749 const uint8_t mac[ETH_ADDR_LEN])
751 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
754 if (!(netdev->cache_valid & VALID_ETHERADDR)
755 || !eth_addr_equals(netdev->etheraddr, mac)) {
756 error = set_etheraddr(netdev_get_kernel_name(netdev_), AF_LINK,
759 netdev->cache_valid |= VALID_ETHERADDR;
760 memcpy(netdev->etheraddr, mac, ETH_ADDR_LEN);
761 netdev_bsd_changed(netdev);
770 * Returns a pointer to 'netdev''s MAC address. The caller must not modify or
771 * free the returned buffer.
774 netdev_bsd_get_etheraddr(const struct netdev *netdev_,
775 uint8_t mac[ETH_ADDR_LEN])
777 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
779 if (!(netdev->cache_valid & VALID_ETHERADDR)) {
780 int error = get_etheraddr(netdev_get_kernel_name(netdev_),
785 netdev->cache_valid |= VALID_ETHERADDR;
787 memcpy(mac, netdev->etheraddr, ETH_ADDR_LEN);
793 * Returns the maximum size of transmitted (and received) packets on 'netdev',
794 * in bytes, not including the hardware header; thus, this is typically 1500
795 * bytes for Ethernet devices.
798 netdev_bsd_get_mtu(const struct netdev *netdev_, int *mtup)
800 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
802 if (!(netdev->cache_valid & VALID_MTU)) {
806 error = netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_), &ifr,
807 SIOCGIFMTU, "SIOCGIFMTU");
811 netdev->mtu = ifr.ifr_mtu;
812 netdev->cache_valid |= VALID_MTU;
820 netdev_bsd_get_ifindex(const struct netdev *netdev)
824 error = get_ifindex(netdev, &ifindex);
825 return error ? -error : ifindex;
829 netdev_bsd_get_carrier(const struct netdev *netdev_, bool *carrier)
831 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
833 if (!(netdev->cache_valid & VALID_CARRIER)) {
834 struct ifmediareq ifmr;
836 memset(&ifmr, 0, sizeof(ifmr));
837 strncpy(ifmr.ifm_name, netdev_get_kernel_name(netdev_),
838 sizeof ifmr.ifm_name);
840 if (ioctl(af_inet_sock, SIOCGIFMEDIA, &ifmr) == -1) {
841 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
842 netdev_get_name(netdev_), strerror(errno));
846 netdev->carrier = (ifmr.ifm_status & IFM_ACTIVE) == IFM_ACTIVE;
847 netdev->cache_valid |= VALID_CARRIER;
849 /* If the interface doesn't report whether the media is active,
850 * just assume it is active. */
851 if ((ifmr.ifm_status & IFM_AVALID) == 0) {
852 netdev->carrier = true;
855 *carrier = netdev->carrier;
860 /* Retrieves current device stats for 'netdev'. */
862 netdev_bsd_get_stats(const struct netdev *netdev_ OVS_UNUSED,
863 struct netdev_stats *stats)
865 #if defined(__FreeBSD__)
869 struct ifmibdata ifmd;
874 mib[2] = NETLINK_GENERIC;
875 mib[3] = IFMIB_SYSTEM;
876 mib[4] = IFMIB_IFCOUNT;
878 len = sizeof(if_count);
880 if (sysctl(mib, 5, &if_count, &len, (void *)0, 0) == -1) {
881 VLOG_DBG_RL(&rl, "%s: sysctl failed: %s",
882 netdev_get_name(netdev_), strerror(errno));
886 mib[5] = IFDATA_GENERAL;
887 mib[3] = IFMIB_IFDATA;
889 for (i = 1; i <= if_count; i++) {
891 if (sysctl(mib, 6, &ifmd, &len, (void *)0, 0) == -1) {
892 VLOG_DBG_RL(&rl, "%s: sysctl failed: %s",
893 netdev_get_name(netdev_), strerror(errno));
895 } else if (!strcmp(ifmd.ifmd_name, netdev_get_name(netdev_))) {
896 stats->rx_packets = ifmd.ifmd_data.ifi_ipackets;
897 stats->tx_packets = ifmd.ifmd_data.ifi_opackets;
898 stats->rx_bytes = ifmd.ifmd_data.ifi_ibytes;
899 stats->tx_bytes = ifmd.ifmd_data.ifi_obytes;
900 stats->rx_errors = ifmd.ifmd_data.ifi_ierrors;
901 stats->tx_errors = ifmd.ifmd_data.ifi_oerrors;
902 stats->rx_dropped = ifmd.ifmd_data.ifi_iqdrops;
903 stats->tx_dropped = UINT64_MAX;
904 stats->multicast = ifmd.ifmd_data.ifi_imcasts;
905 stats->collisions = ifmd.ifmd_data.ifi_collisions;
907 stats->rx_length_errors = UINT64_MAX;
908 stats->rx_over_errors = UINT64_MAX;
909 stats->rx_crc_errors = UINT64_MAX;
910 stats->rx_frame_errors = UINT64_MAX;
911 stats->rx_fifo_errors = UINT64_MAX;
912 stats->rx_missed_errors = UINT64_MAX;
914 stats->tx_aborted_errors = UINT64_MAX;
915 stats->tx_carrier_errors = UINT64_MAX;
916 stats->tx_fifo_errors = UINT64_MAX;
917 stats->tx_heartbeat_errors = UINT64_MAX;
918 stats->tx_window_errors = UINT64_MAX;
926 memset(stats, 0, sizeof(*stats));
932 netdev_bsd_parse_media(int media)
934 uint32_t supported = 0;
935 bool half_duplex = media & IFM_HDX ? true : false;
937 switch (IFM_SUBTYPE(media)) {
942 supported |= half_duplex ? NETDEV_F_10MB_HD : NETDEV_F_10MB_FD;
943 supported |= NETDEV_F_COPPER;
947 supported |= half_duplex ? NETDEV_F_10MB_HD : NETDEV_F_10MB_FD;
948 supported |= NETDEV_F_FIBER;
955 supported |= half_duplex ? NETDEV_F_100MB_HD : NETDEV_F_100MB_FD;
956 supported |= NETDEV_F_COPPER;
960 supported |= half_duplex ? NETDEV_F_100MB_HD : NETDEV_F_100MB_FD;
961 supported |= NETDEV_F_FIBER;
966 supported |= half_duplex ? NETDEV_F_1GB_HD : NETDEV_F_1GB_FD;
967 supported |= NETDEV_F_COPPER;
972 supported |= half_duplex ? NETDEV_F_1GB_HD : NETDEV_F_1GB_FD;
973 supported |= NETDEV_F_FIBER;
977 supported |= NETDEV_F_10GB_FD;
978 supported |= NETDEV_F_COPPER;
983 supported |= NETDEV_F_10GB_FD;
984 supported |= NETDEV_F_FIBER;
991 if (IFM_SUBTYPE(media) == IFM_AUTO) {
992 supported |= NETDEV_F_AUTONEG;
995 if (media & IFM_ETH_FMASK) {
996 supported |= NETDEV_F_PAUSE;
1004 * Stores the features supported by 'netdev' into each of '*current',
1005 * '*advertised', '*supported', and '*peer' that are non-null. Each value is a
1006 * bitmap of "enum ofp_port_features" bits, in host byte order. Returns 0 if
1007 * successful, otherwise a positive errno value. On failure, all of the
1008 * passed-in values are set to 0.
1011 netdev_bsd_get_features(const struct netdev *netdev,
1012 enum netdev_features *current, uint32_t *advertised,
1013 enum netdev_features *supported, uint32_t *peer)
1015 struct ifmediareq ifmr;
1021 /* XXX Look into SIOCGIFCAP instead of SIOCGIFMEDIA */
1023 memset(&ifmr, 0, sizeof(ifmr));
1024 strncpy(ifmr.ifm_name, netdev_get_name(netdev), sizeof ifmr.ifm_name);
1026 /* We make two SIOCGIFMEDIA ioctl calls. The first to determine the
1027 * number of supported modes, and a second with a buffer to retrieve
1029 if (ioctl(af_inet_sock, SIOCGIFMEDIA, &ifmr) == -1) {
1030 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1031 netdev_get_name(netdev), strerror(errno));
1035 media_list = xcalloc(ifmr.ifm_count, sizeof(int));
1036 ifmr.ifm_ulist = media_list;
1038 if (IFM_TYPE(ifmr.ifm_current) != IFM_ETHER) {
1039 VLOG_DBG_RL(&rl, "%s: doesn't appear to be ethernet",
1040 netdev_get_name(netdev));
1045 if (ioctl(af_inet_sock, SIOCGIFMEDIA, &ifmr) == -1) {
1046 VLOG_DBG_RL(&rl, "%s: ioctl(SIOCGIFMEDIA) failed: %s",
1047 netdev_get_name(netdev), strerror(errno));
1052 /* Current settings. */
1053 *current = netdev_bsd_parse_media(ifmr.ifm_active);
1055 /* Advertised features. */
1056 *advertised = netdev_bsd_parse_media(ifmr.ifm_current);
1058 /* Supported features. */
1060 for (i = 0; i < ifmr.ifm_count; i++) {
1061 *supported |= netdev_bsd_parse_media(ifmr.ifm_ulist[i]);
1064 /* Peer advertisements. */
1065 *peer = 0; /* XXX */
1074 * If 'netdev' has an assigned IPv4 address, sets '*in4' to that address (if
1075 * 'in4' is non-null) and returns true. Otherwise, returns false.
1078 netdev_bsd_get_in4(const struct netdev *netdev_, struct in_addr *in4,
1079 struct in_addr *netmask)
1081 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1083 if (!(netdev->cache_valid & VALID_IN4)) {
1084 const struct sockaddr_in *sin;
1088 ifr.ifr_addr.sa_family = AF_INET;
1089 error = netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_), &ifr,
1090 SIOCGIFADDR, "SIOCGIFADDR");
1095 sin = (struct sockaddr_in *) &ifr.ifr_addr;
1096 netdev->in4 = sin->sin_addr;
1097 netdev->cache_valid |= VALID_IN4;
1098 error = netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev_), &ifr,
1099 SIOCGIFNETMASK, "SIOCGIFNETMASK");
1103 *netmask = ((struct sockaddr_in*)&ifr.ifr_addr)->sin_addr;
1107 return in4->s_addr == INADDR_ANY ? EADDRNOTAVAIL : 0;
1111 * Assigns 'addr' as 'netdev''s IPv4 address and 'mask' as its netmask. If
1112 * 'addr' is INADDR_ANY, 'netdev''s IPv4 address is cleared. Returns a
1113 * positive errno value.
1116 netdev_bsd_set_in4(struct netdev *netdev_, struct in_addr addr,
1117 struct in_addr mask)
1119 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1122 error = do_set_addr(netdev_, SIOCSIFADDR, "SIOCSIFADDR", addr);
1124 netdev->cache_valid |= VALID_IN4;
1126 if (addr.s_addr != INADDR_ANY) {
1127 error = do_set_addr(netdev_, SIOCSIFNETMASK,
1128 "SIOCSIFNETMASK", mask);
1130 netdev_bsd_changed(netdev);
1136 netdev_bsd_get_in6(const struct netdev *netdev_, struct in6_addr *in6)
1138 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1139 if (!(netdev->cache_valid & VALID_IN6)) {
1140 struct ifaddrs *ifa, *head;
1141 struct sockaddr_in6 *sin6;
1142 const char *netdev_name = netdev_get_name(netdev_);
1144 if (getifaddrs(&head) != 0) {
1145 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name,
1150 for (ifa = head; ifa; ifa = ifa->ifa_next) {
1151 if (ifa->ifa_addr->sa_family == AF_INET6 &&
1152 !strcmp(ifa->ifa_name, netdev_name)) {
1153 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr;
1155 memcpy(&netdev->in6, &sin6->sin6_addr, sin6->sin6_len);
1156 netdev->cache_valid |= VALID_IN6;
1163 return EADDRNOTAVAIL;
1170 make_in4_sockaddr(struct sockaddr *sa, struct in_addr addr)
1172 struct sockaddr_in sin;
1173 memset(&sin, 0, sizeof sin);
1174 sin.sin_family = AF_INET;
1175 sin.sin_addr = addr;
1178 memset(sa, 0, sizeof *sa);
1179 memcpy(sa, &sin, sizeof sin);
1183 do_set_addr(struct netdev *netdev,
1184 int ioctl_nr, const char *ioctl_name, struct in_addr addr)
1187 make_in4_sockaddr(&ifr.ifr_addr, addr);
1188 return netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev), &ifr, ioctl_nr,
1193 nd_to_iff_flags(enum netdev_flags nd)
1196 if (nd & NETDEV_UP) {
1199 if (nd & NETDEV_PROMISC) {
1201 #if defined(IFF_PPROMISC)
1202 iff |= IFF_PPROMISC;
1209 iff_to_nd_flags(int iff)
1211 enum netdev_flags nd = 0;
1215 if (iff & IFF_PROMISC) {
1216 nd |= NETDEV_PROMISC;
1222 netdev_bsd_update_flags(struct netdev *netdev_, enum netdev_flags off,
1223 enum netdev_flags on, enum netdev_flags *old_flagsp)
1225 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1226 int old_flags, new_flags;
1229 error = get_flags(netdev_, &old_flags);
1231 *old_flagsp = iff_to_nd_flags(old_flags);
1232 new_flags = (old_flags & ~nd_to_iff_flags(off)) | nd_to_iff_flags(on);
1233 if (new_flags != old_flags) {
1234 error = set_flags(netdev_get_kernel_name(netdev_), new_flags);
1235 netdev_bsd_changed(netdev);
1242 netdev_bsd_change_seq(const struct netdev *netdev)
1244 return netdev_bsd_cast(netdev)->change_seq;
1248 const struct netdev_class netdev_bsd_class = {
1254 netdev_bsd_create_system,
1256 NULL, /* get_config */
1257 NULL, /* set_config */
1258 NULL, /* get_tunnel_config */
1263 netdev_bsd_send_wait,
1265 netdev_bsd_set_etheraddr,
1266 netdev_bsd_get_etheraddr,
1269 netdev_bsd_get_ifindex,
1270 netdev_bsd_get_carrier,
1271 NULL, /* get_carrier_resets */
1272 NULL, /* set_miimon_interval */
1273 netdev_bsd_get_stats,
1274 NULL, /* set_stats */
1276 netdev_bsd_get_features,
1277 NULL, /* set_advertisement */
1278 NULL, /* set_policing */
1279 NULL, /* get_qos_type */
1280 NULL, /* get_qos_capabilities */
1283 NULL, /* get_queue */
1284 NULL, /* set_queue */
1285 NULL, /* delete_queue */
1286 NULL, /* get_queue_stats */
1287 NULL, /* dump_queue */
1288 NULL, /* dump_queue_stats */
1293 NULL, /* add_router */
1294 NULL, /* get_next_hop */
1295 NULL, /* get_status */
1296 NULL, /* arp_lookup */
1298 netdev_bsd_update_flags,
1300 netdev_bsd_change_seq
1303 const struct netdev_class netdev_tap_class = {
1309 netdev_bsd_create_tap,
1311 NULL, /* get_config */
1312 NULL, /* set_config */
1313 NULL, /* get_tunnel_config */
1318 netdev_bsd_send_wait,
1320 netdev_bsd_set_etheraddr,
1321 netdev_bsd_get_etheraddr,
1324 netdev_bsd_get_ifindex,
1325 netdev_bsd_get_carrier,
1326 NULL, /* get_carrier_resets */
1327 NULL, /* set_miimon_interval */
1328 netdev_bsd_get_stats,
1329 NULL, /* set_stats */
1331 netdev_bsd_get_features,
1332 NULL, /* set_advertisement */
1333 NULL, /* set_policing */
1334 NULL, /* get_qos_type */
1335 NULL, /* get_qos_capabilities */
1338 NULL, /* get_queue */
1339 NULL, /* set_queue */
1340 NULL, /* delete_queue */
1341 NULL, /* get_queue_stats */
1342 NULL, /* dump_queue */
1343 NULL, /* dump_queue_stats */
1348 NULL, /* add_router */
1349 NULL, /* get_next_hop */
1350 NULL, /* get_status */
1351 NULL, /* arp_lookup */
1353 netdev_bsd_update_flags,
1355 netdev_bsd_change_seq
1358 static const struct netdev_rx_class netdev_rx_bsd_class = {
1359 netdev_rx_bsd_destroy,
1362 netdev_rx_bsd_drain,
1367 destroy_tap(int fd, const char *name)
1372 strcpy(ifr.ifr_name, name);
1373 /* XXX What to do if this call fails? */
1374 ioctl(af_inet_sock, SIOCIFDESTROY, &ifr);
1378 get_flags(const struct netdev *netdev, int *flags)
1383 error = netdev_bsd_do_ioctl(netdev_get_kernel_name(netdev), &ifr,
1384 SIOCGIFFLAGS, "SIOCGIFFLAGS");
1386 *flags = ifr_get_flags(&ifr);
1392 set_flags(const char *name, int flags)
1396 ifr_set_flags(&ifr, flags);
1398 return netdev_bsd_do_ioctl(name, &ifr, SIOCSIFFLAGS, "SIOCSIFFLAGS");
1402 get_ifindex(const struct netdev *netdev_, int *ifindexp)
1404 struct netdev_bsd *netdev = netdev_bsd_cast(netdev_);
1406 if (!(netdev->cache_valid & VALID_IFINDEX)) {
1407 int ifindex = if_nametoindex(netdev_get_name(netdev_));
1411 netdev->cache_valid |= VALID_IFINDEX;
1412 netdev->ifindex = ifindex;
1414 *ifindexp = netdev->ifindex;
1419 get_etheraddr(const char *netdev_name, uint8_t ea[ETH_ADDR_LEN])
1421 struct ifaddrs *head;
1422 struct ifaddrs *ifa;
1423 struct sockaddr_dl *sdl;
1425 if (getifaddrs(&head) != 0) {
1426 VLOG_ERR("getifaddrs on %s device failed: %s", netdev_name,
1431 for (ifa = head; ifa; ifa = ifa->ifa_next) {
1432 if (ifa->ifa_addr->sa_family == AF_LINK) {
1433 if (!strcmp(ifa->ifa_name, netdev_name)) {
1434 sdl = (struct sockaddr_dl *)ifa->ifa_addr;
1436 memcpy(ea, LLADDR(sdl), sdl->sdl_alen);
1444 VLOG_ERR("could not find ethernet address for %s device", netdev_name);
1450 set_etheraddr(const char *netdev_name OVS_UNUSED, int hwaddr_family OVS_UNUSED,
1451 int hwaddr_len OVS_UNUSED,
1452 const uint8_t mac[ETH_ADDR_LEN] OVS_UNUSED)
1454 #if defined(__NetBSD__)
1455 return ENOTSUP; /* XXX */
1459 memset(&ifr, 0, sizeof ifr);
1460 strncpy(ifr.ifr_name, netdev_name, sizeof ifr.ifr_name);
1461 ifr.ifr_addr.sa_family = hwaddr_family;
1462 ifr.ifr_addr.sa_len = hwaddr_len;
1463 memcpy(ifr.ifr_addr.sa_data, mac, hwaddr_len);
1464 if (ioctl(af_inet_sock, SIOCSIFLLADDR, &ifr) < 0) {
1465 VLOG_ERR("ioctl(SIOCSIFLLADDR) on %s device failed: %s",
1466 netdev_name, strerror(errno));
1474 netdev_bsd_do_ioctl(const char *name, struct ifreq *ifr, unsigned long cmd,
1475 const char *cmd_name)
1477 strncpy(ifr->ifr_name, name, sizeof ifr->ifr_name);
1478 if (ioctl(af_inet_sock, cmd, ifr) == -1) {
1479 VLOG_DBG_RL(&rl, "%s: ioctl(%s) failed: %s", name, cmd_name,
1487 ifr_get_flags(const struct ifreq *ifr)
1489 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1490 return (ifr.ifr_flagshigh << 16) | ifr.ifr_flags;
1492 return ifr.ifr_flags;
1497 ifr_set_flags(struct ifreq *ifr, int flags)
1499 ifr->ifr_flags = flags;
1500 #ifdef HAVE_STRUCT_IFREQ_IFR_FLAGSHIGH
1501 ifr->ifr_flagshigh = flags >> 16;