#include <errno.h>
#include <fcntl.h>
#include <sys/socket.h>
+#include <linux/openvswitch.h>
#include <linux/rtnetlink.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include "byte-order.h"
+#include "daemon.h"
+#include "dirs.h"
+#include "dpif-linux.h"
#include "hash.h"
#include "hmap.h"
#include "list.h"
+#include "netdev-linux.h"
#include "netdev-provider.h"
#include "netlink.h"
+#include "netlink-notifier.h"
#include "netlink-socket.h"
#include "ofpbuf.h"
-#include "openvswitch/datapath-protocol.h"
#include "openvswitch/tunnel.h"
#include "packets.h"
-#include "rtnetlink.h"
#include "route-table.h"
-#include "rtnetlink-link.h"
#include "shash.h"
#include "socket-util.h"
+#include "unaligned.h"
#include "vlog.h"
VLOG_DEFINE_THIS_MODULE(netdev_vport);
-static struct hmap name_map;
-static struct rtnetlink_notifier netdev_vport_link_notifier;
-
-struct name_node {
- struct hmap_node node; /* Node in name_map. */
- uint32_t ifi_index; /* Kernel interface index. */
-
- char ifname[IFNAMSIZ]; /* Interface name. */
-};
-
-struct netdev_vport_notifier {
- struct netdev_notifier notifier;
- struct list list_node;
- struct shash_node *shash_node;
-};
-
struct netdev_dev_vport {
struct netdev_dev netdev_dev;
- uint64_t config[VPORT_CONFIG_SIZE / 8];
+ struct ofpbuf *options;
+ int dp_ifindex; /* -1 if unknown. */
+ uint32_t port_no; /* UINT32_MAX if unknown. */
+ unsigned int change_seq;
};
struct netdev_vport {
};
struct vport_class {
+ enum ovs_vport_type type;
struct netdev_class netdev_class;
- int (*parse_config)(const struct netdev_dev *, const struct shash *args,
- void *config);
+ int (*parse_config)(const char *name, const char *type,
+ const struct shash *args, struct ofpbuf *options);
+ int (*unparse_config)(const char *name, const char *type,
+ const struct nlattr *options, size_t options_len,
+ struct shash *args);
};
-static struct shash netdev_vport_notifiers =
- SHASH_INITIALIZER(&netdev_vport_notifiers);
-
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
-static int netdev_vport_do_ioctl(int cmd, void *arg);
static int netdev_vport_create(const struct netdev_class *, const char *,
- const struct shash *, struct netdev_dev **);
+ struct netdev_dev **);
static void netdev_vport_poll_notify(const struct netdev *);
+static int tnl_port_config_from_nlattr(const struct nlattr *options,
+ size_t options_len,
+ struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1]);
-static void netdev_vport_tnl_iface_init(void);
-static void netdev_vport_link_change(const struct rtnetlink_link_change *,
- void *);
static const char *netdev_vport_get_tnl_iface(const struct netdev *netdev);
static bool
return CONTAINER_OF(netdev, struct netdev_vport, netdev);
}
-/* If 'netdev' is a vport netdev, copies its kernel configuration into
- * 'config'. Otherwise leaves 'config' untouched. */
-void
-netdev_vport_get_config(const struct netdev *netdev, void *config)
+/* If 'netdev' is a vport netdev, returns an ofpbuf that contains Netlink
+ * options to include in OVS_VPORT_ATTR_OPTIONS for configuring that vport.
+ * Otherwise returns NULL. */
+const struct ofpbuf *
+netdev_vport_get_options(const struct netdev *netdev)
{
const struct netdev_dev *dev = netdev_get_dev(netdev);
- if (is_vport_class(netdev_dev_get_class(dev))) {
- const struct netdev_dev_vport *vport = netdev_dev_vport_cast(dev);
- memcpy(config, vport->config, VPORT_CONFIG_SIZE);
- }
+ return (is_vport_class(netdev_dev_get_class(dev))
+ ? netdev_dev_vport_cast(dev)->options
+ : NULL);
}
-static int
-netdev_vport_init(void)
+enum ovs_vport_type
+netdev_vport_get_vport_type(const struct netdev *netdev)
{
- netdev_vport_tnl_iface_init();
- route_table_register();
- return 0;
+ const struct netdev_dev *dev = netdev_get_dev(netdev);
+ const struct netdev_class *class = netdev_dev_get_class(dev);
+
+ return (is_vport_class(class) ? vport_class_cast(class)->type
+ : class == &netdev_internal_class ? OVS_VPORT_TYPE_INTERNAL
+ : class == &netdev_linux_class ? OVS_VPORT_TYPE_NETDEV
+ : OVS_VPORT_TYPE_UNSPEC);
+}
+
+const char *
+netdev_vport_get_netdev_type(const struct dpif_linux_vport *vport)
+{
+ struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
+
+ switch (vport->type) {
+ case OVS_VPORT_TYPE_UNSPEC:
+ break;
+
+ case OVS_VPORT_TYPE_NETDEV:
+ return "system";
+
+ case OVS_VPORT_TYPE_INTERNAL:
+ return "internal";
+
+ case OVS_VPORT_TYPE_PATCH:
+ return "patch";
+
+ case OVS_VPORT_TYPE_GRE:
+ if (tnl_port_config_from_nlattr(vport->options, vport->options_len,
+ a)) {
+ break;
+ }
+ return (nl_attr_get_u32(a[OVS_TUNNEL_ATTR_FLAGS]) & TNL_F_IPSEC
+ ? "ipsec_gre" : "gre");
+
+ case OVS_VPORT_TYPE_CAPWAP:
+ return "capwap";
+
+ case __OVS_VPORT_TYPE_MAX:
+ break;
+ }
+
+ VLOG_WARN_RL(&rl, "dp%d: port `%s' has unsupported type %u",
+ vport->dp_ifindex, vport->name, (unsigned int) vport->type);
+ return "unknown";
}
static int
netdev_vport_create(const struct netdev_class *netdev_class, const char *name,
- const struct shash *args,
struct netdev_dev **netdev_devp)
{
- const struct vport_class *vport_class = vport_class_cast(netdev_class);
struct netdev_dev_vport *dev;
- int error;
dev = xmalloc(sizeof *dev);
- *netdev_devp = &dev->netdev_dev;
netdev_dev_init(&dev->netdev_dev, name, netdev_class);
+ dev->options = NULL;
+ dev->dp_ifindex = -1;
+ dev->port_no = UINT32_MAX;
+ dev->change_seq = 1;
- memset(dev->config, 0, sizeof dev->config);
- error = vport_class->parse_config(&dev->netdev_dev, args, dev->config);
+ *netdev_devp = &dev->netdev_dev;
+ route_table_register();
- if (error) {
- netdev_dev_uninit(&dev->netdev_dev, true);
- }
- return error;
+ return 0;
}
static void
}
static int
-netdev_vport_open(struct netdev_dev *netdev_dev_, int ethertype OVS_UNUSED,
- struct netdev **netdevp)
+netdev_vport_open(struct netdev_dev *netdev_dev_, struct netdev **netdevp)
{
struct netdev_vport *netdev;
}
static int
-netdev_vport_reconfigure(struct netdev_dev *dev_,
- const struct shash *args)
+netdev_vport_get_config(struct netdev_dev *dev_, struct shash *args)
{
const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
const struct vport_class *vport_class = vport_class_cast(netdev_class);
struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
- struct odp_port port;
+ const char *name = netdev_dev_get_name(dev_);
int error;
- memset(&port, 0, sizeof port);
- strncpy(port.devname, netdev_dev_get_name(dev_), sizeof port.devname);
- strncpy(port.type, netdev_dev_get_type(dev_), sizeof port.type);
- error = vport_class->parse_config(dev_, args, port.config);
- if (!error && memcmp(port.config, dev->config, sizeof dev->config)) {
- error = netdev_vport_do_ioctl(ODP_VPORT_MOD, &port);
+ if (!dev->options) {
+ struct dpif_linux_vport reply;
+ struct ofpbuf *buf;
+
+ error = dpif_linux_vport_get(name, &reply, &buf);
+ if (error) {
+ VLOG_ERR_RL(&rl, "%s: vport query failed (%s)",
+ name, strerror(error));
+ return error;
+ }
+
+ dev->options = ofpbuf_clone_data(reply.options, reply.options_len);
+ dev->dp_ifindex = reply.dp_ifindex;
+ dev->port_no = reply.port_no;
+ ofpbuf_delete(buf);
+ }
+
+ error = vport_class->unparse_config(name, netdev_class->type,
+ dev->options->data,
+ dev->options->size,
+ args);
+ if (error) {
+ VLOG_ERR_RL(&rl, "%s: failed to parse kernel config (%s)",
+ name, strerror(error));
+ }
+ return error;
+}
+
+static int
+netdev_vport_set_config(struct netdev_dev *dev_, const struct shash *args)
+{
+ const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
+ const struct vport_class *vport_class = vport_class_cast(netdev_class);
+ struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
+ const char *name = netdev_dev_get_name(dev_);
+ struct ofpbuf *options;
+ int error;
+
+ options = ofpbuf_new(64);
+ error = vport_class->parse_config(name, netdev_dev_get_type(dev_),
+ args, options);
+ if (!error
+ && (!dev->options
+ || options->size != dev->options->size
+ || memcmp(options->data, dev->options->data, options->size))) {
+ struct dpif_linux_vport vport;
+
+ dpif_linux_vport_init(&vport);
+ vport.cmd = OVS_VPORT_CMD_SET;
+ vport.name = name;
+ vport.options = options->data;
+ vport.options_len = options->size;
+ error = dpif_linux_vport_transact(&vport, NULL, NULL);
if (!error || error == ENODEV) {
/* Either reconfiguration succeeded or this vport is not installed
* in the kernel (e.g. it hasn't been added to a dpif yet with
* dpif_port_add()). */
- memcpy(dev->config, port.config, sizeof dev->config);
+ ofpbuf_delete(dev->options);
+ dev->options = options;
+ options = NULL;
+ error = 0;
}
}
+ ofpbuf_delete(options);
+
return error;
}
static int
-netdev_vport_set_etheraddr(struct netdev *netdev,
- const uint8_t mac[ETH_ADDR_LEN])
+netdev_vport_send(struct netdev *netdev, const void *data, size_t size)
{
- struct odp_vport_ether vport_ether;
- int err;
-
- ovs_strlcpy(vport_ether.devname, netdev_get_name(netdev),
- sizeof vport_ether.devname);
-
- memcpy(vport_ether.ether_addr, mac, ETH_ADDR_LEN);
+ struct netdev_dev *dev_ = netdev_get_dev(netdev);
+ struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
- err = netdev_vport_do_ioctl(ODP_VPORT_ETHER_SET, &vport_ether);
- if (err) {
- return err;
+ if (dev->dp_ifindex == -1) {
+ const char *name = netdev_get_name(netdev);
+ struct dpif_linux_vport reply;
+ struct ofpbuf *buf;
+ int error;
+
+ error = dpif_linux_vport_get(name, &reply, &buf);
+ if (error) {
+ VLOG_ERR_RL(&rl, "%s: failed to query vport for send (%s)",
+ name, strerror(error));
+ return error;
+ }
+ dev->dp_ifindex = reply.dp_ifindex;
+ dev->port_no = reply.port_no;
+ ofpbuf_delete(buf);
}
- netdev_vport_poll_notify(netdev);
- return 0;
+ return dpif_linux_vport_send(dev->dp_ifindex, dev->port_no, data, size);
}
static int
-netdev_vport_get_etheraddr(const struct netdev *netdev,
- uint8_t mac[ETH_ADDR_LEN])
+netdev_vport_set_etheraddr(struct netdev *netdev,
+ const uint8_t mac[ETH_ADDR_LEN])
{
- struct odp_vport_ether vport_ether;
- int err;
+ struct dpif_linux_vport vport;
+ int error;
- ovs_strlcpy(vport_ether.devname, netdev_get_name(netdev),
- sizeof vport_ether.devname);
+ dpif_linux_vport_init(&vport);
+ vport.cmd = OVS_VPORT_CMD_SET;
+ vport.name = netdev_get_name(netdev);
+ vport.address = mac;
- err = netdev_vport_do_ioctl(ODP_VPORT_ETHER_GET, &vport_ether);
- if (err) {
- return err;
+ error = dpif_linux_vport_transact(&vport, NULL, NULL);
+ if (!error) {
+ netdev_vport_poll_notify(netdev);
}
-
- memcpy(mac, vport_ether.ether_addr, ETH_ADDR_LEN);
- return 0;
+ return error;
}
static int
-netdev_vport_get_mtu(const struct netdev *netdev, int *mtup)
+netdev_vport_get_etheraddr(const struct netdev *netdev,
+ uint8_t mac[ETH_ADDR_LEN])
{
- struct odp_vport_mtu vport_mtu;
- int err;
-
- ovs_strlcpy(vport_mtu.devname, netdev_get_name(netdev),
- sizeof vport_mtu.devname);
+ struct dpif_linux_vport reply;
+ struct ofpbuf *buf;
+ int error;
- err = netdev_vport_do_ioctl(ODP_VPORT_MTU_GET, &vport_mtu);
- if (err) {
- return err;
+ error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
+ if (!error) {
+ if (reply.address) {
+ memcpy(mac, reply.address, ETH_ADDR_LEN);
+ } else {
+ error = EOPNOTSUPP;
+ }
+ ofpbuf_delete(buf);
}
+ return error;
+}
- *mtup = vport_mtu.mtu;
- return 0;
+/* Copies 'src' into 'dst', performing format conversion in the process.
+ *
+ * 'src' is allowed to be misaligned. */
+static void
+netdev_stats_from_ovs_vport_stats(struct netdev_stats *dst,
+ const struct ovs_vport_stats *src)
+{
+ dst->rx_packets = get_unaligned_u64(&src->rx_packets);
+ dst->tx_packets = get_unaligned_u64(&src->tx_packets);
+ dst->rx_bytes = get_unaligned_u64(&src->rx_bytes);
+ dst->tx_bytes = get_unaligned_u64(&src->tx_bytes);
+ dst->rx_errors = get_unaligned_u64(&src->rx_errors);
+ dst->tx_errors = get_unaligned_u64(&src->tx_errors);
+ dst->rx_dropped = get_unaligned_u64(&src->rx_dropped);
+ dst->tx_dropped = get_unaligned_u64(&src->tx_dropped);
+ dst->multicast = 0;
+ dst->collisions = 0;
+ dst->rx_length_errors = 0;
+ dst->rx_over_errors = 0;
+ dst->rx_crc_errors = 0;
+ dst->rx_frame_errors = 0;
+ dst->rx_fifo_errors = 0;
+ dst->rx_missed_errors = 0;
+ dst->tx_aborted_errors = 0;
+ dst->tx_carrier_errors = 0;
+ dst->tx_fifo_errors = 0;
+ dst->tx_heartbeat_errors = 0;
+ dst->tx_window_errors = 0;
+}
+
+/* Copies 'src' into 'dst', performing format conversion in the process. */
+static void
+netdev_stats_to_ovs_vport_stats(struct ovs_vport_stats *dst,
+ const struct netdev_stats *src)
+{
+ dst->rx_packets = src->rx_packets;
+ dst->tx_packets = src->tx_packets;
+ dst->rx_bytes = src->rx_bytes;
+ dst->tx_bytes = src->tx_bytes;
+ dst->rx_errors = src->rx_errors;
+ dst->tx_errors = src->tx_errors;
+ dst->rx_dropped = src->rx_dropped;
+ dst->tx_dropped = src->tx_dropped;
}
int
netdev_vport_get_stats(const struct netdev *netdev, struct netdev_stats *stats)
{
- const char *name = netdev_get_name(netdev);
- struct odp_vport_stats_req ovsr;
- int err;
+ struct dpif_linux_vport reply;
+ struct ofpbuf *buf;
+ int error;
+
+ error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
+ if (error) {
+ return error;
+ } else if (!reply.stats) {
+ ofpbuf_delete(buf);
+ return EOPNOTSUPP;
+ }
+
+ netdev_stats_from_ovs_vport_stats(stats, reply.stats);
- ovs_strlcpy(ovsr.devname, name, sizeof ovsr.devname);
- err = netdev_vport_do_ioctl(ODP_VPORT_STATS_GET, &ovsr);
- if (err) {
- return err;
- }
-
- stats->rx_packets = ovsr.stats.rx_packets;
- stats->tx_packets = ovsr.stats.tx_packets;
- stats->rx_bytes = ovsr.stats.rx_bytes;
- stats->tx_bytes = ovsr.stats.tx_bytes;
- stats->rx_errors = ovsr.stats.rx_errors;
- stats->tx_errors = ovsr.stats.tx_errors;
- stats->rx_dropped = ovsr.stats.rx_dropped;
- stats->tx_dropped = ovsr.stats.tx_dropped;
- stats->multicast = ovsr.stats.multicast;
- stats->collisions = ovsr.stats.collisions;
- stats->rx_length_errors = ovsr.stats.rx_length_errors;
- stats->rx_over_errors = ovsr.stats.rx_over_errors;
- stats->rx_crc_errors = ovsr.stats.rx_crc_errors;
- stats->rx_frame_errors = ovsr.stats.rx_frame_errors;
- stats->rx_fifo_errors = ovsr.stats.rx_fifo_errors;
- stats->rx_missed_errors = ovsr.stats.rx_missed_errors;
- stats->tx_aborted_errors = ovsr.stats.tx_aborted_errors;
- stats->tx_carrier_errors = ovsr.stats.tx_carrier_errors;
- stats->tx_fifo_errors = ovsr.stats.tx_fifo_errors;
- stats->tx_heartbeat_errors = ovsr.stats.tx_heartbeat_errors;
- stats->tx_window_errors = ovsr.stats.tx_window_errors;
+ ofpbuf_delete(buf);
return 0;
}
int
netdev_vport_set_stats(struct netdev *netdev, const struct netdev_stats *stats)
{
- struct odp_vport_stats_req ovsr;
+ struct ovs_vport_stats rtnl_stats;
+ struct dpif_linux_vport vport;
int err;
- ovs_strlcpy(ovsr.devname, netdev_get_name(netdev), sizeof ovsr.devname);
-
- ovsr.stats.rx_packets = stats->rx_packets;
- ovsr.stats.tx_packets = stats->tx_packets;
- ovsr.stats.rx_bytes = stats->rx_bytes;
- ovsr.stats.tx_bytes = stats->tx_bytes;
- ovsr.stats.rx_errors = stats->rx_errors;
- ovsr.stats.tx_errors = stats->tx_errors;
- ovsr.stats.rx_dropped = stats->rx_dropped;
- ovsr.stats.tx_dropped = stats->tx_dropped;
- ovsr.stats.multicast = stats->multicast;
- ovsr.stats.collisions = stats->collisions;
- ovsr.stats.rx_length_errors = stats->rx_length_errors;
- ovsr.stats.rx_over_errors = stats->rx_over_errors;
- ovsr.stats.rx_crc_errors = stats->rx_crc_errors;
- ovsr.stats.rx_frame_errors = stats->rx_frame_errors;
- ovsr.stats.rx_fifo_errors = stats->rx_fifo_errors;
- ovsr.stats.rx_missed_errors = stats->rx_missed_errors;
- ovsr.stats.tx_aborted_errors = stats->tx_aborted_errors;
- ovsr.stats.tx_carrier_errors = stats->tx_carrier_errors;
- ovsr.stats.tx_fifo_errors = stats->tx_fifo_errors;
- ovsr.stats.tx_heartbeat_errors = stats->tx_heartbeat_errors;
- ovsr.stats.tx_window_errors = stats->tx_window_errors;
-
- err = netdev_vport_do_ioctl(ODP_VPORT_STATS_SET, &ovsr);
+ netdev_stats_to_ovs_vport_stats(&rtnl_stats, stats);
+
+ dpif_linux_vport_init(&vport);
+ vport.cmd = OVS_VPORT_CMD_SET;
+ vport.name = netdev_get_name(netdev);
+ vport.stats = &rtnl_stats;
+
+ err = dpif_linux_vport_transact(&vport, NULL, NULL);
/* If the vport layer doesn't know about the device, that doesn't mean it
* doesn't exist (after all were able to open it when netdev_open() was
shash_add(sh, "tunnel_egress_iface", xstrdup(iface));
- if (!netdev_open_default(iface, &egress_netdev)) {
+ if (!netdev_open(iface, "system", &egress_netdev)) {
shash_add(sh, "tunnel_egress_iface_carrier",
xstrdup(netdev_get_carrier(egress_netdev)
? "up" : "down"));
return 0;
}
-static char *
-make_poll_name(const struct netdev *netdev)
+static unsigned int
+netdev_vport_change_seq(const struct netdev *netdev)
{
- return xasprintf("%s:%s", netdev_get_type(netdev), netdev_get_name(netdev));
-}
-
-static int
-netdev_vport_poll_add(struct netdev *netdev,
- void (*cb)(struct netdev_notifier *), void *aux,
- struct netdev_notifier **notifierp)
-{
- char *poll_name = make_poll_name(netdev);
- struct netdev_vport_notifier *notifier;
- struct list *list;
- struct shash_node *shash_node;
-
- shash_node = shash_find_data(&netdev_vport_notifiers, poll_name);
- if (!shash_node) {
- list = xmalloc(sizeof *list);
- list_init(list);
- shash_node = shash_add(&netdev_vport_notifiers, poll_name, list);
- } else {
- list = shash_node->data;
- }
-
- notifier = xmalloc(sizeof *notifier);
- netdev_notifier_init(¬ifier->notifier, netdev, cb, aux);
- list_push_back(list, ¬ifier->list_node);
- notifier->shash_node = shash_node;
-
- *notifierp = ¬ifier->notifier;
- free(poll_name);
-
- return 0;
-}
-
-static void
-netdev_vport_poll_remove(struct netdev_notifier *notifier_)
-{
- struct netdev_vport_notifier *notifier =
- CONTAINER_OF(notifier_, struct netdev_vport_notifier, notifier);
-
- struct list *list;
-
- list = list_remove(¬ifier->list_node);
- if (list_is_empty(list)) {
- shash_delete(&netdev_vport_notifiers, notifier->shash_node);
- free(list);
- }
-
- free(notifier);
+ return netdev_dev_vport_cast(netdev_get_dev(netdev))->change_seq;
}
static void
netdev_vport_run(void)
{
- rtnetlink_link_notifier_run();
route_table_run();
}
static void
netdev_vport_wait(void)
{
- rtnetlink_link_notifier_wait();
route_table_wait();
}
\f
/* get_tnl_iface() implementation. */
-
-static struct name_node *
-name_node_lookup(int ifi_index)
-{
- struct name_node *nn;
-
- HMAP_FOR_EACH_WITH_HASH(nn, node, hash_int(ifi_index, 0), &name_map) {
- if (nn->ifi_index == ifi_index) {
- return nn;
- }
- }
-
- return NULL;
-}
-
-/* Queries the kernel for fresh data to populate the name map with. */
-static int
-netdev_vport_reset_names(void)
-{
- int error;
- struct nl_dump dump;
- struct rtgenmsg *rtmsg;
- struct ofpbuf request, reply;
- static struct nl_sock *rtnl_sock;
- struct name_node *nn, *nn_next;
-
- HMAP_FOR_EACH_SAFE(nn, nn_next, node, &name_map) {
- hmap_remove(&name_map, &nn->node);
- free(nn);
- }
-
- error = nl_sock_create(NETLINK_ROUTE, &rtnl_sock);
- if (error) {
- VLOG_WARN_RL(&rl, "Failed to create NETLINK_ROUTE socket");
- return error;
- }
-
- ofpbuf_init(&request, 0);
-
- nl_msg_put_nlmsghdr(&request, sizeof *rtmsg, RTM_GETLINK, NLM_F_REQUEST);
-
- rtmsg = ofpbuf_put_zeros(&request, sizeof *rtmsg);
- rtmsg->rtgen_family = AF_INET;
-
- nl_dump_start(&dump, rtnl_sock, &request);
-
- while (nl_dump_next(&dump, &reply)) {
- struct rtnetlink_link_change change;
-
- if (rtnetlink_link_parse(&reply, &change)) {
- netdev_vport_link_change(&change, NULL);
- }
- }
-
- error = nl_dump_done(&dump);
- nl_sock_destroy(rtnl_sock);
-
- return error;
-}
-
-static void
-netdev_vport_link_change(const struct rtnetlink_link_change *change,
- void *aux OVS_UNUSED)
-{
-
- if (!change) {
- netdev_vport_reset_names();
- } else if (change->nlmsg_type == RTM_NEWLINK) {
- struct name_node *nn;
-
- if (name_node_lookup(change->ifi_index)) {
- return;
- }
-
- nn = xzalloc(sizeof *nn);
- nn->ifi_index = change->ifi_index;
-
- strncpy(nn->ifname, change->ifname, IFNAMSIZ);
- nn->ifname[IFNAMSIZ - 1] = '\0';
-
- hmap_insert(&name_map, &nn->node, hash_int(nn->ifi_index, 0));
- } else if (change->nlmsg_type == RTM_DELLINK) {
- struct name_node *nn;
-
- nn = name_node_lookup(change->ifi_index);
-
- if (nn) {
- hmap_remove(&name_map, &nn->node);
- free(nn);
- }
-
- } else {
- VLOG_WARN_RL(&rl, "Received unexpected rtnetlink message type %d",
- change->nlmsg_type);
- }
-}
-
-static void
-netdev_vport_tnl_iface_init(void)
-{
- static bool tnl_iface_is_init = false;
-
- if (!tnl_iface_is_init) {
- hmap_init(&name_map);
-
- rtnetlink_link_notifier_register(&netdev_vport_link_notifier,
- netdev_vport_link_change, NULL);
-
- netdev_vport_reset_names();
- tnl_iface_is_init = true;
- }
-}
-
static const char *
netdev_vport_get_tnl_iface(const struct netdev *netdev)
{
- int ifindex;
- uint32_t route;
+ struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
+ ovs_be32 route;
struct netdev_dev_vport *ndv;
- struct tnl_port_config *config;
+ static char name[IFNAMSIZ];
ndv = netdev_dev_vport_cast(netdev_get_dev(netdev));
- config = (struct tnl_port_config *) ndv->config;
- route = config->daddr;
-
- if (route_table_get_ifindex(route, &ifindex)) {
- struct name_node *nn;
- HMAP_FOR_EACH_WITH_HASH(nn, node, hash_int(ifindex, 0), &name_map) {
- if (nn->ifi_index == ifindex) {
- return nn->ifname;
- }
- }
+ if (tnl_port_config_from_nlattr(ndv->options->data, ndv->options->size,
+ a)) {
+ return NULL;
+ }
+ route = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_DST_IPV4]);
+
+ if (route_table_get_name(route, name)) {
+ return name;
}
return NULL;
\f
/* Helper functions. */
-static int
-netdev_vport_do_ioctl(int cmd, void *arg)
+static void
+netdev_vport_poll_notify(const struct netdev *netdev)
{
- static int ioctl_fd = -1;
+ struct netdev_dev_vport *ndv;
- if (ioctl_fd < 0) {
- ioctl_fd = open("/dev/net/dp0", O_RDONLY | O_NONBLOCK);
- if (ioctl_fd < 0) {
- VLOG_ERR_RL(&rl, "failed to open ioctl fd: %s", strerror(errno));
- return errno;
- }
- }
+ ndv = netdev_dev_vport_cast(netdev_get_dev(netdev));
- return ioctl(ioctl_fd, cmd, arg) ? errno : 0;
+ ndv->change_seq++;
+ if (!ndv->change_seq) {
+ ndv->change_seq++;
+ }
}
+\f
+/* Code specific to individual vport types. */
static void
-netdev_vport_poll_notify(const struct netdev *netdev)
+set_key(const struct shash *args, const char *name, uint16_t type,
+ struct ofpbuf *options)
{
- char *poll_name = make_poll_name(netdev);
- struct list *list = shash_find_data(&netdev_vport_notifiers,
- poll_name);
-
- if (list) {
- struct netdev_vport_notifier *notifier;
+ const char *s;
- LIST_FOR_EACH (notifier, list_node, list) {
- struct netdev_notifier *n = ¬ifier->notifier;
- n->cb(n);
+ s = shash_find_data(args, name);
+ if (!s) {
+ s = shash_find_data(args, "key");
+ if (!s) {
+ s = "0";
}
}
- free(poll_name);
+ if (!strcmp(s, "flow")) {
+ /* This is the default if no attribute is present. */
+ } else {
+ nl_msg_put_be64(options, type, htonll(strtoull(s, NULL, 0)));
+ }
}
-\f
-/* Code specific to individual vport types. */
static int
-parse_tunnel_config(const struct netdev_dev *dev, const struct shash *args,
- void *configp)
+parse_tunnel_config(const char *name, const char *type,
+ const struct shash *args, struct ofpbuf *options)
{
- const char *name = netdev_dev_get_name(dev);
- const char *type = netdev_dev_get_type(dev);
bool is_gre = false;
bool is_ipsec = false;
- struct tnl_port_config config;
struct shash_node *node;
bool ipsec_mech_set = false;
+ ovs_be32 daddr = htonl(0);
+ ovs_be32 saddr = htonl(0);
+ uint32_t flags;
- memset(&config, 0, sizeof config);
- config.flags |= TNL_F_PMTUD;
- config.flags |= TNL_F_HDR_CACHE;
-
+ flags = TNL_F_DF_DEFAULT | TNL_F_PMTUD | TNL_F_HDR_CACHE;
if (!strcmp(type, "gre")) {
is_gre = true;
} else if (!strcmp(type, "ipsec_gre")) {
is_gre = true;
is_ipsec = true;
-
- config.flags |= TNL_F_IPSEC;
-
- /* IPsec doesn't work when header caching is enabled. */
- config.flags &= ~TNL_F_HDR_CACHE;
+ flags |= TNL_F_IPSEC;
+ flags &= ~TNL_F_HDR_CACHE;
}
SHASH_FOR_EACH (node, args) {
if (lookup_ip(node->data, &in_addr)) {
VLOG_WARN("%s: bad %s 'remote_ip'", name, type);
} else {
- config.daddr = in_addr.s_addr;
+ daddr = in_addr.s_addr;
}
} else if (!strcmp(node->name, "local_ip")) {
struct in_addr in_addr;
if (lookup_ip(node->data, &in_addr)) {
VLOG_WARN("%s: bad %s 'local_ip'", name, type);
} else {
- config.saddr = in_addr.s_addr;
- }
- } else if (!strcmp(node->name, "key") && is_gre) {
- if (!strcmp(node->data, "flow")) {
- config.flags |= TNL_F_IN_KEY_MATCH;
- config.flags |= TNL_F_OUT_KEY_ACTION;
- } else {
- uint64_t key = strtoull(node->data, NULL, 0);
- config.out_key = config.in_key = htonll(key);
- }
- } else if (!strcmp(node->name, "in_key") && is_gre) {
- if (!strcmp(node->data, "flow")) {
- config.flags |= TNL_F_IN_KEY_MATCH;
- } else {
- config.in_key = htonll(strtoull(node->data, NULL, 0));
- }
- } else if (!strcmp(node->name, "out_key") && is_gre) {
- if (!strcmp(node->data, "flow")) {
- config.flags |= TNL_F_OUT_KEY_ACTION;
- } else {
- config.out_key = htonll(strtoull(node->data, NULL, 0));
+ saddr = in_addr.s_addr;
}
} else if (!strcmp(node->name, "tos")) {
if (!strcmp(node->data, "inherit")) {
- config.flags |= TNL_F_TOS_INHERIT;
+ flags |= TNL_F_TOS_INHERIT;
} else {
- config.tos = atoi(node->data);
+ nl_msg_put_u8(options, OVS_TUNNEL_ATTR_TOS, atoi(node->data));
}
} else if (!strcmp(node->name, "ttl")) {
if (!strcmp(node->data, "inherit")) {
- config.flags |= TNL_F_TTL_INHERIT;
+ flags |= TNL_F_TTL_INHERIT;
} else {
- config.ttl = atoi(node->data);
+ nl_msg_put_u8(options, OVS_TUNNEL_ATTR_TTL, atoi(node->data));
}
} else if (!strcmp(node->name, "csum") && is_gre) {
if (!strcmp(node->data, "true")) {
- config.flags |= TNL_F_CSUM;
+ flags |= TNL_F_CSUM;
+ }
+ } else if (!strcmp(node->name, "df_inherit")) {
+ if (!strcmp(node->data, "true")) {
+ flags |= TNL_F_DF_INHERIT;
+ }
+ } else if (!strcmp(node->name, "df_default")) {
+ if (!strcmp(node->data, "false")) {
+ flags &= ~TNL_F_DF_DEFAULT;
}
} else if (!strcmp(node->name, "pmtud")) {
if (!strcmp(node->data, "false")) {
- config.flags &= ~TNL_F_PMTUD;
+ flags &= ~TNL_F_PMTUD;
}
} else if (!strcmp(node->name, "header_cache")) {
if (!strcmp(node->data, "false")) {
- config.flags &= ~TNL_F_HDR_CACHE;
+ flags &= ~TNL_F_HDR_CACHE;
}
} else if (!strcmp(node->name, "peer_cert") && is_ipsec) {
if (shash_find(args, "certificate")) {
*/
use_ssl_cert = shash_find_data(args, "use_ssl_cert");
if (!use_ssl_cert || strcmp(use_ssl_cert, "true")) {
- VLOG_WARN("%s: 'peer_cert' requires 'certificate' argument",
- name);
+ VLOG_ERR("%s: 'peer_cert' requires 'certificate' argument",
+ name);
return EINVAL;
}
ipsec_mech_set = true;
|| !strcmp(node->name, "private_key")
|| !strcmp(node->name, "use_ssl_cert"))) {
/* Ignore options not used by the netdev. */
+ } else if (!strcmp(node->name, "key") ||
+ !strcmp(node->name, "in_key") ||
+ !strcmp(node->name, "out_key")) {
+ /* Handled separately below. */
} else {
- VLOG_WARN("%s: unknown %s argument '%s'",
- name, type, node->name);
+ VLOG_WARN("%s: unknown %s argument '%s'", name, type, node->name);
}
}
if (is_ipsec) {
+ char *file_name = xasprintf("%s/%s", ovs_rundir(),
+ "ovs-monitor-ipsec.pid");
+ pid_t pid = read_pidfile(file_name);
+ free(file_name);
+ if (pid < 0) {
+ VLOG_ERR("%s: IPsec requires the ovs-monitor-ipsec daemon",
+ name);
+ return EINVAL;
+ }
+
if (shash_find(args, "peer_cert") && shash_find(args, "psk")) {
- VLOG_WARN("%s: cannot define both 'peer_cert' and 'psk'", name);
+ VLOG_ERR("%s: cannot define both 'peer_cert' and 'psk'", name);
return EINVAL;
}
if (!ipsec_mech_set) {
- VLOG_WARN("%s: IPsec requires an 'peer_cert' or psk' argument",
- name);
+ VLOG_ERR("%s: IPsec requires an 'peer_cert' or psk' argument",
+ name);
return EINVAL;
}
}
- if (!config.daddr) {
- VLOG_WARN("%s: %s type requires valid 'remote_ip' argument",
- name, type);
+ set_key(args, "in_key", OVS_TUNNEL_ATTR_IN_KEY, options);
+ set_key(args, "out_key", OVS_TUNNEL_ATTR_OUT_KEY, options);
+
+ if (!daddr) {
+ VLOG_ERR("%s: %s type requires valid 'remote_ip' argument",
+ name, type);
return EINVAL;
}
+ nl_msg_put_be32(options, OVS_TUNNEL_ATTR_DST_IPV4, daddr);
+
+ if (saddr) {
+ if (ip_is_multicast(daddr)) {
+ VLOG_WARN("%s: remote_ip is multicast, ignoring local_ip", name);
+ } else {
+ nl_msg_put_be32(options, OVS_TUNNEL_ATTR_SRC_IPV4, saddr);
+ }
+ }
+
+ nl_msg_put_u32(options, OVS_TUNNEL_ATTR_FLAGS, flags);
- BUILD_ASSERT(sizeof config <= VPORT_CONFIG_SIZE);
- memcpy(configp, &config, sizeof config);
return 0;
}
static int
-parse_patch_config(const struct netdev_dev *dev, const struct shash *args,
- void *configp)
+tnl_port_config_from_nlattr(const struct nlattr *options, size_t options_len,
+ struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1])
+{
+ static const struct nl_policy ovs_tunnel_policy[] = {
+ [OVS_TUNNEL_ATTR_FLAGS] = { .type = NL_A_U32 },
+ [OVS_TUNNEL_ATTR_DST_IPV4] = { .type = NL_A_BE32 },
+ [OVS_TUNNEL_ATTR_SRC_IPV4] = { .type = NL_A_BE32, .optional = true },
+ [OVS_TUNNEL_ATTR_IN_KEY] = { .type = NL_A_BE64, .optional = true },
+ [OVS_TUNNEL_ATTR_OUT_KEY] = { .type = NL_A_BE64, .optional = true },
+ [OVS_TUNNEL_ATTR_TOS] = { .type = NL_A_U8, .optional = true },
+ [OVS_TUNNEL_ATTR_TTL] = { .type = NL_A_U8, .optional = true },
+ };
+ struct ofpbuf buf;
+
+ ofpbuf_use_const(&buf, options, options_len);
+ if (!nl_policy_parse(&buf, 0, ovs_tunnel_policy,
+ a, ARRAY_SIZE(ovs_tunnel_policy))) {
+ return EINVAL;
+ }
+ return 0;
+}
+
+static uint64_t
+get_be64_or_zero(const struct nlattr *a)
+{
+ return a ? ntohll(nl_attr_get_be64(a)) : 0;
+}
+
+static int
+unparse_tunnel_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
+ const struct nlattr *options, size_t options_len,
+ struct shash *args)
+{
+ struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
+ ovs_be32 daddr;
+ uint32_t flags;
+ int error;
+
+ error = tnl_port_config_from_nlattr(options, options_len, a);
+ if (error) {
+ return error;
+ }
+
+ flags = nl_attr_get_u32(a[OVS_TUNNEL_ATTR_FLAGS]);
+ if (!(flags & TNL_F_HDR_CACHE) == !(flags & TNL_F_IPSEC)) {
+ smap_add(args, "header_cache",
+ flags & TNL_F_HDR_CACHE ? "true" : "false");
+ }
+
+ daddr = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_DST_IPV4]);
+ shash_add(args, "remote_ip", xasprintf(IP_FMT, IP_ARGS(&daddr)));
+
+ if (a[OVS_TUNNEL_ATTR_SRC_IPV4]) {
+ ovs_be32 saddr = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_SRC_IPV4]);
+ shash_add(args, "local_ip", xasprintf(IP_FMT, IP_ARGS(&saddr)));
+ }
+
+ if (!a[OVS_TUNNEL_ATTR_IN_KEY] && !a[OVS_TUNNEL_ATTR_OUT_KEY]) {
+ smap_add(args, "key", "flow");
+ } else {
+ uint64_t in_key = get_be64_or_zero(a[OVS_TUNNEL_ATTR_IN_KEY]);
+ uint64_t out_key = get_be64_or_zero(a[OVS_TUNNEL_ATTR_OUT_KEY]);
+
+ if (in_key && in_key == out_key) {
+ shash_add(args, "key", xasprintf("%"PRIu64, in_key));
+ } else {
+ if (!a[OVS_TUNNEL_ATTR_IN_KEY]) {
+ smap_add(args, "in_key", "flow");
+ } else if (in_key) {
+ shash_add(args, "in_key", xasprintf("%"PRIu64, in_key));
+ }
+
+ if (!a[OVS_TUNNEL_ATTR_OUT_KEY]) {
+ smap_add(args, "out_key", "flow");
+ } else if (out_key) {
+ shash_add(args, "out_key", xasprintf("%"PRIu64, out_key));
+ }
+ }
+ }
+
+ if (flags & TNL_F_TTL_INHERIT) {
+ smap_add(args, "tos", "inherit");
+ } else if (a[OVS_TUNNEL_ATTR_TTL]) {
+ int ttl = nl_attr_get_u8(a[OVS_TUNNEL_ATTR_TTL]);
+ shash_add(args, "tos", xasprintf("%d", ttl));
+ }
+
+ if (flags & TNL_F_TOS_INHERIT) {
+ smap_add(args, "tos", "inherit");
+ } else if (a[OVS_TUNNEL_ATTR_TOS]) {
+ int tos = nl_attr_get_u8(a[OVS_TUNNEL_ATTR_TOS]);
+ shash_add(args, "tos", xasprintf("%d", tos));
+ }
+
+ if (flags & TNL_F_CSUM) {
+ smap_add(args, "csum", "true");
+ }
+ if (flags & TNL_F_DF_INHERIT) {
+ smap_add(args, "df_inherit", "true");
+ }
+ if (!(flags & TNL_F_DF_DEFAULT)) {
+ smap_add(args, "df_default", "false");
+ }
+ if (!(flags & TNL_F_PMTUD)) {
+ smap_add(args, "pmtud", "false");
+ }
+
+ return 0;
+}
+
+static int
+parse_patch_config(const char *name, const char *type OVS_UNUSED,
+ const struct shash *args, struct ofpbuf *options)
{
- const char *name = netdev_dev_get_name(dev);
const char *peer;
peer = shash_find_data(args, "peer");
if (!peer) {
- VLOG_WARN("%s: patch type requires valid 'peer' argument", name);
+ VLOG_ERR("%s: patch type requires valid 'peer' argument", name);
return EINVAL;
}
if (shash_count(args) > 1) {
- VLOG_WARN("%s: patch type takes only a 'peer' argument", name);
+ VLOG_ERR("%s: patch type takes only a 'peer' argument", name);
return EINVAL;
}
- if (strlen(peer) >= MIN(IFNAMSIZ, VPORT_CONFIG_SIZE)) {
- VLOG_WARN("%s: patch 'peer' arg too long", name);
+ if (strlen(peer) >= IFNAMSIZ) {
+ VLOG_ERR("%s: patch 'peer' arg too long", name);
return EINVAL;
}
if (!strcmp(name, peer)) {
- VLOG_WARN("%s: patch peer must not be self", name);
+ VLOG_ERR("%s: patch peer must not be self", name);
return EINVAL;
}
- strncpy(configp, peer, VPORT_CONFIG_SIZE);
+ nl_msg_put_string(options, OVS_PATCH_ATTR_PEER, peer);
+
+ return 0;
+}
+
+static int
+unparse_patch_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
+ const struct nlattr *options, size_t options_len,
+ struct shash *args)
+{
+ static const struct nl_policy ovs_patch_policy[] = {
+ [OVS_PATCH_ATTR_PEER] = { .type = NL_A_STRING,
+ .max_len = IFNAMSIZ,
+ .optional = false }
+ };
+
+ struct nlattr *a[ARRAY_SIZE(ovs_patch_policy)];
+ struct ofpbuf buf;
+
+ ofpbuf_use_const(&buf, options, options_len);
+ if (!nl_policy_parse(&buf, 0, ovs_patch_policy,
+ a, ARRAY_SIZE(ovs_patch_policy))) {
+ return EINVAL;
+ }
+ smap_add(args, "peer", nl_attr_get_string(a[OVS_PATCH_ATTR_PEER]));
return 0;
}
\f
#define VPORT_FUNCTIONS(GET_STATUS) \
- netdev_vport_init, \
+ NULL, \
netdev_vport_run, \
netdev_vport_wait, \
\
netdev_vport_create, \
netdev_vport_destroy, \
- netdev_vport_reconfigure, \
+ netdev_vport_get_config, \
+ netdev_vport_set_config, \
\
netdev_vport_open, \
netdev_vport_close, \
\
- NULL, /* enumerate */ \
- \
+ NULL, /* listen */ \
NULL, /* recv */ \
NULL, /* recv_wait */ \
NULL, /* drain */ \
\
- NULL, /* send */ \
+ netdev_vport_send, /* send */ \
NULL, /* send_wait */ \
\
netdev_vport_set_etheraddr, \
netdev_vport_get_etheraddr, \
- netdev_vport_get_mtu, \
+ NULL, /* get_mtu */ \
+ NULL, /* set_mtu */ \
NULL, /* get_ifindex */ \
NULL, /* get_carrier */ \
+ NULL, /* get_carrier_resets */ \
NULL, /* get_miimon */ \
netdev_vport_get_stats, \
netdev_vport_set_stats, \
\
netdev_vport_update_flags, \
\
- netdev_vport_poll_add, \
- netdev_vport_poll_remove,
+ netdev_vport_change_seq
void
netdev_vport_register(void)
{
static const struct vport_class vport_classes[] = {
- { { "gre", VPORT_FUNCTIONS(netdev_vport_get_status) },
- parse_tunnel_config },
- { { "ipsec_gre", VPORT_FUNCTIONS(netdev_vport_get_status) },
- parse_tunnel_config },
- { { "capwap", VPORT_FUNCTIONS(netdev_vport_get_status) },
- parse_tunnel_config },
- { { "patch", VPORT_FUNCTIONS(NULL) }, parse_patch_config }
+ { OVS_VPORT_TYPE_GRE,
+ { "gre", VPORT_FUNCTIONS(netdev_vport_get_status) },
+ parse_tunnel_config, unparse_tunnel_config },
+
+ { OVS_VPORT_TYPE_GRE,
+ { "ipsec_gre", VPORT_FUNCTIONS(netdev_vport_get_status) },
+ parse_tunnel_config, unparse_tunnel_config },
+
+ { OVS_VPORT_TYPE_CAPWAP,
+ { "capwap", VPORT_FUNCTIONS(netdev_vport_get_status) },
+ parse_tunnel_config, unparse_tunnel_config },
+
+ { OVS_VPORT_TYPE_PATCH,
+ { "patch", VPORT_FUNCTIONS(NULL) },
+ parse_patch_config, unparse_patch_config }
};
int i;