#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/hash.h>
#include <net/dst_metadata.h>
struct hlist_node hlist; /* vni hash table */
struct net *net; /* netns for packet i/o */
struct net_device *dev; /* netdev for geneve tunnel */
- struct geneve_sock *sock4; /* IPv4 socket used for geneve tunnel */
+ struct geneve_sock __rcu *sock4; /* IPv4 socket used for geneve tunnel */
#if IS_ENABLED(CONFIG_IPV6)
- struct geneve_sock *sock6; /* IPv6 socket used for geneve tunnel */
+ struct geneve_sock __rcu *sock6; /* IPv6 socket used for geneve tunnel */
#endif
u8 vni[3]; /* virtual network ID for tunnel */
u8 ttl; /* TTL override */
return sock;
}
-static void geneve_notify_add_rx_port(struct geneve_sock *gs)
-{
- struct net_device *dev;
- struct sock *sk = gs->sock->sk;
- struct net *net = sock_net(sk);
- sa_family_t sa_family = geneve_get_sk_family(gs);
- __be16 port = inet_sk(sk)->inet_sport;
-
- rcu_read_lock();
- for_each_netdev_rcu(net, dev) {
- if (dev->netdev_ops->ndo_add_geneve_port)
- dev->netdev_ops->ndo_add_geneve_port(dev, sa_family,
- port);
- }
- rcu_read_unlock();
-}
-
static int geneve_hlen(struct genevehdr *gh)
{
return sizeof(*gh) + gh->opt_len * 4;
skb_gro_pull(skb, gh_len);
skb_gro_postpull_rcsum(skb, gh, gh_len);
- pp = ptype->callbacks.gro_receive(head, skb);
+ pp = call_gro_receive(ptype->callbacks.gro_receive, head, skb);
flush = 0;
out_unlock:
INIT_HLIST_HEAD(&gs->vni_list[h]);
/* Initialize the geneve udp offloads structure */
- geneve_notify_add_rx_port(gs);
+ udp_tunnel_notify_add_rx_port(gs->sock, UDP_TUNNEL_TYPE_GENEVE);
/* Mark socket as an encapsulation socket */
memset(&tunnel_cfg, 0, sizeof(tunnel_cfg));
return gs;
}
-static void geneve_notify_del_rx_port(struct geneve_sock *gs)
-{
- struct net_device *dev;
- struct sock *sk = gs->sock->sk;
- struct net *net = sock_net(sk);
- sa_family_t sa_family = geneve_get_sk_family(gs);
- __be16 port = inet_sk(sk)->inet_sport;
-
- rcu_read_lock();
- for_each_netdev_rcu(net, dev) {
- if (dev->netdev_ops->ndo_del_geneve_port)
- dev->netdev_ops->ndo_del_geneve_port(dev, sa_family,
- port);
- }
-
- rcu_read_unlock();
-}
-
static void __geneve_sock_release(struct geneve_sock *gs)
{
if (!gs || --gs->refcnt)
return;
list_del(&gs->list);
- geneve_notify_del_rx_port(gs);
+ udp_tunnel_notify_del_rx_port(gs->sock, UDP_TUNNEL_TYPE_GENEVE);
udp_tunnel_sock_release(gs->sock);
kfree_rcu(gs, rcu);
}
static void geneve_sock_release(struct geneve_dev *geneve)
{
- __geneve_sock_release(geneve->sock4);
+ struct geneve_sock *gs4 = rtnl_dereference(geneve->sock4);
+#if IS_ENABLED(CONFIG_IPV6)
+ struct geneve_sock *gs6 = rtnl_dereference(geneve->sock6);
+
+ rcu_assign_pointer(geneve->sock6, NULL);
+#endif
+
+ rcu_assign_pointer(geneve->sock4, NULL);
+ synchronize_net();
+
+ __geneve_sock_release(gs4);
#if IS_ENABLED(CONFIG_IPV6)
- __geneve_sock_release(geneve->sock6);
+ __geneve_sock_release(gs6);
#endif
}
gs->flags = geneve->flags;
#if IS_ENABLED(CONFIG_IPV6)
if (ipv6)
- geneve->sock6 = gs;
+ rcu_assign_pointer(geneve->sock6, gs);
else
#endif
- geneve->sock4 = gs;
+ rcu_assign_pointer(geneve->sock4, gs);
hash = geneve_net_vni_hash(geneve->vni);
hlist_add_head_rcu(&geneve->hlist, &gs->vni_list[hash]);
bool metadata = geneve->collect_md;
int ret = 0;
- geneve->sock4 = NULL;
#if IS_ENABLED(CONFIG_IPV6)
- geneve->sock6 = NULL;
if (ipv6 || metadata)
ret = geneve_sock_add(geneve, true);
#endif
struct rtable *rt = NULL;
__u8 tos;
+ if (!rcu_dereference(geneve->sock4))
+ return ERR_PTR(-EIO);
+
memset(fl4, 0, sizeof(*fl4));
fl4->flowi4_mark = skb->mark;
fl4->flowi4_proto = IPPROTO_UDP;
{
bool use_cache = ip_tunnel_dst_cache_usable(skb, info);
struct geneve_dev *geneve = netdev_priv(dev);
- struct geneve_sock *gs6 = geneve->sock6;
struct dst_entry *dst = NULL;
struct dst_cache *dst_cache;
+ struct geneve_sock *gs6;
__u8 prio;
+ gs6 = rcu_dereference(geneve->sock6);
+ if (!gs6)
+ return ERR_PTR(-EIO);
+
memset(fl6, 0, sizeof(*fl6));
fl6->flowi6_mark = skb->mark;
fl6->flowi6_proto = IPPROTO_UDP;
struct ip_tunnel_info *info)
{
struct geneve_dev *geneve = netdev_priv(dev);
- struct geneve_sock *gs4 = geneve->sock4;
+ struct geneve_sock *gs4;
struct rtable *rt = NULL;
const struct iphdr *iip; /* interior IP header */
int err = -EINVAL;
bool xnet = !net_eq(geneve->net, dev_net(geneve->dev));
u32 flags = geneve->flags;
+ gs4 = rcu_dereference(geneve->sock4);
+ if (!gs4)
+ goto tx_error;
+
if (geneve->collect_md) {
if (unlikely(!info || !(info->mode & IP_TUNNEL_INFO_TX))) {
netdev_dbg(dev, "no tunnel metadata\n");
struct ip_tunnel_info *info)
{
struct geneve_dev *geneve = netdev_priv(dev);
- struct geneve_sock *gs6 = geneve->sock6;
struct dst_entry *dst = NULL;
const struct iphdr *iip; /* interior IP header */
+ struct geneve_sock *gs6;
int err = -EINVAL;
struct flowi6 fl6;
__u8 prio, ttl;
bool xnet = !net_eq(geneve->net, dev_net(geneve->dev));
u32 flags = geneve->flags;
+ gs6 = rcu_dereference(geneve->sock6);
+ if (!gs6)
+ goto tx_error;
+
if (geneve->collect_md) {
if (unlikely(!info || !(info->mode & IP_TUNNEL_INFO_TX))) {
netdev_dbg(dev, "no tunnel metadata\n");
.name = "geneve",
};
-/* Calls the ndo_add_geneve_port of the caller in order to
+/* Calls the ndo_udp_tunnel_add of the caller in order to
* supply the listening GENEVE udp ports. Callers are expected
- * to implement the ndo_add_geneve_port.
+ * to implement the ndo_udp_tunnel_add.
*/
static void geneve_push_rx_ports(struct net_device *dev)
{
struct net *net = dev_net(dev);
struct geneve_net *gn = net_generic(net, geneve_net_id);
struct geneve_sock *gs;
- sa_family_t sa_family;
- struct sock *sk;
- __be16 port;
-
- if (!dev->netdev_ops->ndo_add_geneve_port)
- return;
rcu_read_lock();
- list_for_each_entry_rcu(gs, &gn->sock_list, list) {
- sk = gs->sock->sk;
- sa_family = sk->sk_family;
- port = inet_sk(sk)->inet_sport;
- dev->netdev_ops->ndo_add_geneve_port(dev, sa_family, port);
- }
+ list_for_each_entry_rcu(gs, &gn->sock_list, list)
+ udp_tunnel_push_rx_port(dev, gs->sock,
+ UDP_TUNNEL_TYPE_GENEVE);
rcu_read_unlock();
}
{
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
- if (event == NETDEV_OFFLOAD_PUSH_GENEVE)
+ if (event == NETDEV_UDP_TUNNEL_PUSH_INFO)
geneve_push_rx_ports(dev);
return NOTIFY_DONE;
projects / cascardo / linux.git / blobdiff