#include <linux/skbuff.h>
#include <linux/openvswitch.h>
-#include <net/llc.h>
+#include <net/udp.h>
+#include <net/ip_tunnels.h>
+#include <net/rtnetlink.h>
+#include <net/vxlan.h>
#include "datapath.h"
+#include "vport.h"
#include "vport-internal_dev.h"
#include "vport-netdev.h"
skb_push(skb, ETH_HLEN);
ovs_skb_postpush_rcsum(skb, skb->data, ETH_HLEN);
- ovs_vport_receive(vport, skb, NULL);
+ ovs_vport_receive(vport, skb, skb_tunnel_info(skb, AF_INET));
return;
error:
local = ovs_vport_ovsl(dp, OVSP_LOCAL);
BUG_ON(!local);
- return netdev_vport_priv(local)->dev;
+ return local->dev;
}
-static struct vport *netdev_create(const struct vport_parms *parms)
+static struct vport *netdev_link(struct vport *vport, const char *name)
{
- struct vport *vport;
- struct netdev_vport *netdev_vport;
int err;
- vport = ovs_vport_alloc(sizeof(struct netdev_vport),
- &ovs_netdev_vport_ops, parms);
- if (IS_ERR(vport)) {
- err = PTR_ERR(vport);
- goto error;
- }
-
- netdev_vport = netdev_vport_priv(vport);
-
- netdev_vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), parms->name);
- if (!netdev_vport->dev) {
+ vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), name);
+ if (!vport->dev) {
err = -ENODEV;
goto error_free_vport;
}
- if (netdev_vport->dev->flags & IFF_LOOPBACK ||
- netdev_vport->dev->type != ARPHRD_ETHER ||
- ovs_is_internal_dev(netdev_vport->dev)) {
+ if (vport->dev->flags & IFF_LOOPBACK ||
+ vport->dev->type != ARPHRD_ETHER ||
+ ovs_is_internal_dev(vport->dev)) {
err = -EINVAL;
goto error_put;
}
rtnl_lock();
- err = netdev_master_upper_dev_link(netdev_vport->dev,
+ err = netdev_master_upper_dev_link(vport->dev,
get_dpdev(vport->dp));
if (err)
goto error_unlock;
- err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook,
+ err = netdev_rx_handler_register(vport->dev, netdev_frame_hook,
vport);
if (err)
goto error_master_upper_dev_unlink;
- dev_disable_lro(netdev_vport->dev);
- dev_set_promiscuity(netdev_vport->dev, 1);
- netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;
+ dev_disable_lro(vport->dev);
+ dev_set_promiscuity(vport->dev, 1);
+ vport->dev->priv_flags |= IFF_OVS_DATAPATH;
rtnl_unlock();
return vport;
error_master_upper_dev_unlink:
- netdev_upper_dev_unlink(netdev_vport->dev, get_dpdev(vport->dp));
+ netdev_upper_dev_unlink(vport->dev, get_dpdev(vport->dp));
error_unlock:
rtnl_unlock();
error_put:
- dev_put(netdev_vport->dev);
+ dev_put(vport->dev);
error_free_vport:
ovs_vport_free(vport);
-error:
return ERR_PTR(err);
}
+static struct vport *netdev_create(const struct vport_parms *parms)
+{
+ struct vport *vport;
+
+ vport = ovs_vport_alloc(0, &ovs_netdev_vport_ops, parms);
+ if (IS_ERR(vport))
+ return vport;
+
+ return netdev_link(vport, parms->name);
+}
+
static void free_port_rcu(struct rcu_head *rcu)
{
- struct netdev_vport *netdev_vport = container_of(rcu,
- struct netdev_vport, rcu);
+ struct vport *vport = container_of(rcu, struct vport, rcu);
- dev_put(netdev_vport->dev);
- ovs_vport_free(vport_from_priv(netdev_vport));
+ if (vport->dev)
+ dev_put(vport->dev);
+ ovs_vport_free(vport);
}
void ovs_netdev_detach_dev(struct vport *vport)
{
- struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
-
ASSERT_RTNL();
- netdev_vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
- netdev_rx_handler_unregister(netdev_vport->dev);
- netdev_upper_dev_unlink(netdev_vport->dev,
- netdev_master_upper_dev_get(netdev_vport->dev));
- dev_set_promiscuity(netdev_vport->dev, -1);
+ vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
+ netdev_rx_handler_unregister(vport->dev);
+ netdev_upper_dev_unlink(vport->dev,
+ netdev_master_upper_dev_get(vport->dev));
+ dev_set_promiscuity(vport->dev, -1);
}
static void netdev_destroy(struct vport *vport)
{
- struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
-
rtnl_lock();
- if (netdev_vport->dev->priv_flags & IFF_OVS_DATAPATH)
+ if (vport->dev->priv_flags & IFF_OVS_DATAPATH)
ovs_netdev_detach_dev(vport);
rtnl_unlock();
- call_rcu(&netdev_vport->rcu, free_port_rcu);
-}
-
-const char *ovs_netdev_get_name(const struct vport *vport)
-{
- const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
- return netdev_vport->dev->name;
+ call_rcu(&vport->rcu, free_port_rcu);
}
static unsigned int packet_length(const struct sk_buff *skb)
static int netdev_send(struct vport *vport, struct sk_buff *skb)
{
- struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
- int mtu = netdev_vport->dev->mtu;
+ int mtu = vport->dev->mtu;
int len;
if (unlikely(packet_length(skb) > mtu && !skb_is_gso(skb))) {
net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n",
- netdev_vport->dev->name,
+ vport->dev->name,
packet_length(skb), mtu);
goto drop;
}
- skb->dev = netdev_vport->dev;
+ skb->dev = vport->dev;
len = skb->len;
dev_queue_xmit(skb);
.type = OVS_VPORT_TYPE_NETDEV,
.create = netdev_create,
.destroy = netdev_destroy,
- .get_name = ovs_netdev_get_name,
.send = netdev_send,
};
+/* Compat code for old userspace. */
+#if IS_ENABLED(CONFIG_VXLAN)
+static struct vport_ops ovs_vxlan_netdev_vport_ops;
+
+static int vxlan_get_options(const struct vport *vport, struct sk_buff *skb)
+{
+ struct vxlan_dev *vxlan = netdev_priv(vport->dev);
+ __be16 dst_port = vxlan->cfg.dst_port;
+
+ if (nla_put_u16(skb, OVS_TUNNEL_ATTR_DST_PORT, ntohs(dst_port)))
+ return -EMSGSIZE;
+
+ if (vxlan->flags & VXLAN_F_GBP) {
+ struct nlattr *exts;
+
+ exts = nla_nest_start(skb, OVS_TUNNEL_ATTR_EXTENSION);
+ if (!exts)
+ return -EMSGSIZE;
+
+ if (vxlan->flags & VXLAN_F_GBP &&
+ nla_put_flag(skb, OVS_VXLAN_EXT_GBP))
+ return -EMSGSIZE;
+
+ nla_nest_end(skb, exts);
+ }
+
+ return 0;
+}
+
+static const struct nla_policy exts_policy[OVS_VXLAN_EXT_MAX + 1] = {
+ [OVS_VXLAN_EXT_GBP] = { .type = NLA_FLAG, },
+};
+
+static int vxlan_configure_exts(struct vport *vport, struct nlattr *attr,
+ struct vxlan_config *conf)
+{
+ struct nlattr *exts[OVS_VXLAN_EXT_MAX + 1];
+ int err;
+
+ if (nla_len(attr) < sizeof(struct nlattr))
+ return -EINVAL;
+
+ err = nla_parse_nested(exts, OVS_VXLAN_EXT_MAX, attr, exts_policy);
+ if (err < 0)
+ return err;
+
+ if (exts[OVS_VXLAN_EXT_GBP])
+ conf->flags |= VXLAN_F_GBP;
+
+ return 0;
+}
+
+static struct vport *vxlan_tnl_create(const struct vport_parms *parms)
+{
+ struct net *net = ovs_dp_get_net(parms->dp);
+ struct nlattr *options = parms->options;
+ struct net_device *dev;
+ struct vport *vport;
+ struct nlattr *a;
+ int err;
+ struct vxlan_config conf = {
+ .no_share = true,
+ .flags = VXLAN_F_FLOW_BASED | VXLAN_F_COLLECT_METADATA,
+ };
+
+ if (!options) {
+ err = -EINVAL;
+ goto error;
+ }
+
+ a = nla_find_nested(options, OVS_TUNNEL_ATTR_DST_PORT);
+ if (a && nla_len(a) == sizeof(u16)) {
+ conf.dst_port = htons(nla_get_u16(a));
+ } else {
+ /* Require destination port from userspace. */
+ err = -EINVAL;
+ goto error;
+ }
+
+ vport = ovs_vport_alloc(0, &ovs_vxlan_netdev_vport_ops, parms);
+ if (IS_ERR(vport))
+ return vport;
+
+ a = nla_find_nested(options, OVS_TUNNEL_ATTR_EXTENSION);
+ if (a) {
+ err = vxlan_configure_exts(vport, a, &conf);
+ if (err) {
+ ovs_vport_free(vport);
+ goto error;
+ }
+ }
+
+ rtnl_lock();
+ dev = vxlan_dev_create(net, parms->name, NET_NAME_USER, &conf);
+ if (IS_ERR(dev)) {
+ rtnl_unlock();
+ ovs_vport_free(vport);
+ return ERR_CAST(dev);
+ }
+
+ dev_change_flags(dev, dev->flags | IFF_UP);
+ rtnl_unlock();
+ return vport;
+error:
+ return ERR_PTR(err);
+}
+
+static struct vport *vxlan_create(const struct vport_parms *parms)
+{
+ struct vport *vport;
+
+ vport = vxlan_tnl_create(parms);
+ if (IS_ERR(vport))
+ return vport;
+
+ return netdev_link(vport, parms->name);
+}
+
+static void vxlan_destroy(struct vport *vport)
+{
+ rtnl_lock();
+ if (vport->dev->priv_flags & IFF_OVS_DATAPATH)
+ ovs_netdev_detach_dev(vport);
+
+ /* Early release so we can unregister the device */
+ dev_put(vport->dev);
+ rtnl_delete_link(vport->dev);
+ vport->dev = NULL;
+ rtnl_unlock();
+
+ call_rcu(&vport->rcu, free_port_rcu);
+}
+
+static int vxlan_get_egress_tun_info(struct vport *vport, struct sk_buff *skb,
+ struct ip_tunnel_info *egress_tun_info)
+{
+ struct vxlan_dev *vxlan = netdev_priv(vport->dev);
+ struct net *net = ovs_dp_get_net(vport->dp);
+ __be16 dst_port = vxlan_dev_dst_port(vxlan);
+ __be16 src_port;
+ int port_min;
+ int port_max;
+
+ inet_get_local_port_range(net, &port_min, &port_max);
+ src_port = udp_flow_src_port(net, skb, 0, 0, true);
+
+ return ovs_tunnel_get_egress_info(egress_tun_info, net,
+ OVS_CB(skb)->egress_tun_info,
+ IPPROTO_UDP, skb->mark,
+ src_port, dst_port);
+}
+
+static struct vport_ops ovs_vxlan_netdev_vport_ops = {
+ .type = OVS_VPORT_TYPE_VXLAN,
+ .create = vxlan_create,
+ .destroy = vxlan_destroy,
+ .get_options = vxlan_get_options,
+ .send = netdev_send,
+ .get_egress_tun_info = vxlan_get_egress_tun_info,
+};
+
+static int vxlan_compat_init(void)
+{
+ return ovs_vport_ops_register(&ovs_vxlan_netdev_vport_ops);
+}
+
+static void vxlan_compat_exit(void)
+{
+ ovs_vport_ops_unregister(&ovs_vxlan_netdev_vport_ops);
+}
+#else
+static int vxlan_compat_init(void)
+{
+ return 0;
+}
+
+static void vxlan_compat_exit(void)
+{
+}
+#endif
+
int __init ovs_netdev_init(void)
{
- return ovs_vport_ops_register(&ovs_netdev_vport_ops);
+ int err;
+
+ err = ovs_vport_ops_register(&ovs_netdev_vport_ops);
+ if (err)
+ return err;
+ err = vxlan_compat_init();
+ if (err)
+ vxlan_compat_exit();
+ return err;
}
void ovs_netdev_exit(void)
{
ovs_vport_ops_unregister(&ovs_netdev_vport_ops);
+ vxlan_compat_exit();
}
projects / karo-tx-linux.git / blobdiff