#include <inttypes.h>
#include <net/if.h>
#include <linux/types.h>
+#include <linux/ip.h>
#include <linux/pkt_sched.h>
+#include <linux/rtnetlink.h>
#include <poll.h>
#include <stdlib.h>
#include <strings.h>
}
+#ifdef __linux__
+
+static int
+netdev_linux_destroy(const char *name)
+{
+ int err;
+ struct ofpbuf request, *reply;
+
+ ofpbuf_init(&request, 0);
+ nl_msg_put_nlmsghdr(&request, 0, RTM_DELLINK,
+ NLM_F_REQUEST | NLM_F_ACK);
+ ofpbuf_put_zeros(&request, sizeof(struct ifinfomsg));
+ nl_msg_put_string(&request, IFLA_IFNAME, name);
+
+ err = nl_transact(NETLINK_ROUTE, &request, &reply);
+
+ if (!err) {
+ ofpbuf_uninit(reply);
+ }
+
+ ofpbuf_uninit(&request);
+ return err;
+}
+
+static int
+netdev_vxlan_destroy(const char *name)
+{
+ return netdev_linux_destroy(name);
+}
+
+/*
+ * On some older systems, these enums are not defined.
+ */
+
+#ifndef IFLA_VXLAN_MAX
+#define IFLA_VXLAN_MAX 0
+#define IFLA_VXLAN_PORT 15
+#endif
+#if IFLA_VXLAN_MAX < 20
+#define IFLA_VXLAN_UDP_ZERO_CSUM6_RX 20
+#define IFLA_VXLAN_GBP 23
+#define IFLA_VXLAN_COLLECT_METADATA 25
+#endif
+
+static int
+netdev_vxlan_create(struct netdev *netdev)
+{
+ int err;
+ struct ofpbuf request, *reply;
+ size_t linkinfo_off, infodata_off;
+ char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
+ const char *name = netdev_vport_get_dpif_port(netdev,
+ namebuf, sizeof namebuf);
+ struct ifinfomsg *ifinfo;
+ const struct netdev_tunnel_config *tnl_cfg;
+ tnl_cfg = netdev_get_tunnel_config(netdev);
+ if (!tnl_cfg) { /* or assert? */
+ return EINVAL;
+ }
+
+ ofpbuf_init(&request, 0);
+ nl_msg_put_nlmsghdr(&request, 0, RTM_NEWLINK,
+ NLM_F_REQUEST | NLM_F_ACK | NLM_F_CREATE);
+ ifinfo = ofpbuf_put_zeros(&request, sizeof(struct ifinfomsg));
+ ifinfo->ifi_change = ifinfo->ifi_flags = IFF_UP;
+ nl_msg_put_string(&request, IFLA_IFNAME, name);
+ nl_msg_put_u32(&request, IFLA_MTU, UINT16_MAX);
+ linkinfo_off = nl_msg_start_nested(&request, IFLA_LINKINFO);
+ nl_msg_put_string(&request, IFLA_INFO_KIND, "vxlan");
+ infodata_off = nl_msg_start_nested(&request, IFLA_INFO_DATA);
+ nl_msg_put_u8(&request, IFLA_VXLAN_LEARNING, 0);
+ nl_msg_put_u8(&request, IFLA_VXLAN_COLLECT_METADATA, 1);
+ nl_msg_put_u8(&request, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, 1);
+ if (tnl_cfg->exts & (1 << OVS_VXLAN_EXT_GBP)) {
+ nl_msg_put_flag(&request, IFLA_VXLAN_GBP);
+ }
+ nl_msg_put_be16(&request, IFLA_VXLAN_PORT, tnl_cfg->dst_port);
+ nl_msg_end_nested(&request, infodata_off);
+ nl_msg_end_nested(&request, linkinfo_off);
+
+ err = nl_transact(NETLINK_ROUTE, &request, &reply);
+
+ if (!err) {
+ ofpbuf_uninit(reply);
+ }
+
+ /*
+ * Linux versions older than 4.3 will return EINVAL in case the VID is not
+ * set, which is sufficient to verify COLLECT_METADATA is supported.
+ */
+ if (err == EINVAL) {
+ err = EOPNOTSUPP;
+ }
+
+ ofpbuf_uninit(&request);
+ return err;
+}
+
+#else
+
+static int
+netdev_vxlan_create(struct netdev *netdev OVS_UNUSED)
+{
+ return EOPNOTSUPP;
+}
+
+static int
+netdev_vxlan_destroy(const char *name OVS_UNUSED)
+{
+ return EOPNOTSUPP;
+}
+
+#endif
+
static int
dpif_netlink_port_query__(const struct dpif_netlink *dpif, odp_port_t port_no,
const char *port_name, struct dpif_port *dpif_port);
{
switch (netdev_to_ovs_vport_type(netdev_get_type(netdev))) {
case OVS_VPORT_TYPE_VXLAN:
+ return netdev_vxlan_create(netdev);
case OVS_VPORT_TYPE_GRE:
case OVS_VPORT_TYPE_GENEVE:
case OVS_VPORT_TYPE_NETDEV:
}
static int
-dpif_netlink_port_destroy(const char *name OVS_UNUSED, const char *type)
+dpif_netlink_port_destroy(const char *name, const char *type)
{
switch (netdev_to_ovs_vport_type(type)) {
case OVS_VPORT_TYPE_VXLAN:
+ return netdev_vxlan_destroy(name);
case OVS_VPORT_TYPE_GRE:
case OVS_VPORT_TYPE_GENEVE:
case OVS_VPORT_TYPE_NETDEV: