#include <net/net_namespace.h>
#include <net/netns/generic.h>
#include <net/vxlan.h>
-#include <net/protocol.h>
#if IS_ENABLED(CONFIG_IPV6)
#include <net/ip6_tunnel.h>
if (!net_eq(dev_net(vxlan->dev), vxlan->net) &&
nla_put_s32(skb, NDA_LINK_NETNSID,
- peernet2id_alloc(dev_net(vxlan->dev), vxlan->net)))
+ peernet2id(dev_net(vxlan->dev), vxlan->net)))
goto nla_put_failure;
if (send_eth && nla_put(skb, NDA_LLADDR, ETH_ALEN, &fdb->eth_addr))
}
}
- pp = eth_gro_receive(head, skb);
+ pp = call_gro_receive(eth_gro_receive, head, skb);
flush = 0;
out:
/* Dump forwarding table */
static int vxlan_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
struct net_device *dev,
- struct net_device *filter_dev, int idx)
+ struct net_device *filter_dev, int *idx)
{
struct vxlan_dev *vxlan = netdev_priv(dev);
unsigned int h;
+ int err = 0;
for (h = 0; h < FDB_HASH_SIZE; ++h) {
struct vxlan_fdb *f;
- int err;
hlist_for_each_entry_rcu(f, &vxlan->fdb_head[h], hlist) {
struct vxlan_rdst *rd;
list_for_each_entry_rcu(rd, &f->remotes, list) {
- if (idx < cb->args[0])
+ if (*idx < cb->args[2])
goto skip;
err = vxlan_fdb_info(skb, vxlan, f,
cb->nlh->nlmsg_seq,
RTM_NEWNEIGH,
NLM_F_MULTI, rd);
- if (err < 0) {
- cb->args[1] = err;
+ if (err < 0)
goto out;
- }
skip:
- ++idx;
+ *idx += 1;
}
}
}
out:
- return idx;
+ return err;
}
/* Watch incoming packets to learn mapping between Ethernet address
static bool vxlan_group_used(struct vxlan_net *vn, struct vxlan_dev *dev)
{
struct vxlan_dev *vxlan;
+ struct vxlan_sock *sock4;
+ struct vxlan_sock *sock6 = NULL;
unsigned short family = dev->default_dst.remote_ip.sa.sa_family;
+ sock4 = rtnl_dereference(dev->vn4_sock);
+
/* The vxlan_sock is only used by dev, leaving group has
* no effect on other vxlan devices.
*/
- if (family == AF_INET && dev->vn4_sock &&
- atomic_read(&dev->vn4_sock->refcnt) == 1)
+ if (family == AF_INET && sock4 && atomic_read(&sock4->refcnt) == 1)
return false;
#if IS_ENABLED(CONFIG_IPV6)
- if (family == AF_INET6 && dev->vn6_sock &&
- atomic_read(&dev->vn6_sock->refcnt) == 1)
+ sock6 = rtnl_dereference(dev->vn6_sock);
+ if (family == AF_INET6 && sock6 && atomic_read(&sock6->refcnt) == 1)
return false;
#endif
if (!netif_running(vxlan->dev) || vxlan == dev)
continue;
- if (family == AF_INET && vxlan->vn4_sock != dev->vn4_sock)
+ if (family == AF_INET &&
+ rtnl_dereference(vxlan->vn4_sock) != sock4)
continue;
#if IS_ENABLED(CONFIG_IPV6)
- if (family == AF_INET6 && vxlan->vn6_sock != dev->vn6_sock)
+ if (family == AF_INET6 &&
+ rtnl_dereference(vxlan->vn6_sock) != sock6)
continue;
#endif
static void vxlan_sock_release(struct vxlan_dev *vxlan)
{
- bool ipv4 = __vxlan_sock_release_prep(vxlan->vn4_sock);
+ struct vxlan_sock *sock4 = rtnl_dereference(vxlan->vn4_sock);
#if IS_ENABLED(CONFIG_IPV6)
- bool ipv6 = __vxlan_sock_release_prep(vxlan->vn6_sock);
+ struct vxlan_sock *sock6 = rtnl_dereference(vxlan->vn6_sock);
+
+ rcu_assign_pointer(vxlan->vn6_sock, NULL);
#endif
+ rcu_assign_pointer(vxlan->vn4_sock, NULL);
synchronize_net();
- if (ipv4) {
- udp_tunnel_sock_release(vxlan->vn4_sock->sock);
- kfree(vxlan->vn4_sock);
+ if (__vxlan_sock_release_prep(sock4)) {
+ udp_tunnel_sock_release(sock4->sock);
+ kfree(sock4);
}
#if IS_ENABLED(CONFIG_IPV6)
- if (ipv6) {
- udp_tunnel_sock_release(vxlan->vn6_sock->sock);
- kfree(vxlan->vn6_sock);
+ if (__vxlan_sock_release_prep(sock6)) {
+ udp_tunnel_sock_release(sock6->sock);
+ kfree(sock6);
}
#endif
}
int ret = -EINVAL;
if (ip->sa.sa_family == AF_INET) {
+ struct vxlan_sock *sock4 = rtnl_dereference(vxlan->vn4_sock);
struct ip_mreqn mreq = {
.imr_multiaddr.s_addr = ip->sin.sin_addr.s_addr,
.imr_ifindex = ifindex,
};
- sk = vxlan->vn4_sock->sock->sk;
+ sk = sock4->sock->sk;
lock_sock(sk);
ret = ip_mc_join_group(sk, &mreq);
release_sock(sk);
#if IS_ENABLED(CONFIG_IPV6)
} else {
- sk = vxlan->vn6_sock->sock->sk;
+ struct vxlan_sock *sock6 = rtnl_dereference(vxlan->vn6_sock);
+
+ sk = sock6->sock->sk;
lock_sock(sk);
ret = ipv6_stub->ipv6_sock_mc_join(sk, ifindex,
&ip->sin6.sin6_addr);
int ret = -EINVAL;
if (ip->sa.sa_family == AF_INET) {
+ struct vxlan_sock *sock4 = rtnl_dereference(vxlan->vn4_sock);
struct ip_mreqn mreq = {
.imr_multiaddr.s_addr = ip->sin.sin_addr.s_addr,
.imr_ifindex = ifindex,
};
- sk = vxlan->vn4_sock->sock->sk;
+ sk = sock4->sock->sk;
lock_sock(sk);
ret = ip_mc_leave_group(sk, &mreq);
release_sock(sk);
#if IS_ENABLED(CONFIG_IPV6)
} else {
- sk = vxlan->vn6_sock->sock->sk;
+ struct vxlan_sock *sock6 = rtnl_dereference(vxlan->vn6_sock);
+
+ sk = sock6->sock->sk;
lock_sock(sk);
ret = ipv6_stub->ipv6_sock_mc_drop(sk, ifindex,
&ip->sin6.sin6_addr);
struct metadata_dst *tun_dst;
tun_dst = udp_tun_rx_dst(skb, vxlan_get_sk_family(vs), TUNNEL_KEY,
- vxlan_vni_to_tun_id(vni), sizeof(*md));
+ key32_to_tunnel_id(vni), sizeof(*md));
if (!tun_dst)
goto drop;
struct dst_cache *dst_cache,
const struct ip_tunnel_info *info)
{
+ struct vxlan_sock *sock6 = rcu_dereference(vxlan->vn6_sock);
bool use_cache = ip_tunnel_dst_cache_usable(skb, info);
struct dst_entry *ndst;
struct flowi6 fl6;
int err;
+ if (!sock6)
+ return ERR_PTR(-EIO);
+
if (tos && !info)
use_cache = false;
if (use_cache) {
fl6.flowi6_proto = IPPROTO_UDP;
err = ipv6_stub->ipv6_dst_lookup(vxlan->net,
- vxlan->vn6_sock->sock->sk,
+ sock6->sock->sk,
&ndst, &fl6);
if (err < 0)
return ERR_PTR(err);
goto drop;
}
dst_port = info->key.tp_dst ? : vxlan->cfg.dst_port;
- vni = vxlan_tun_id_to_vni(info->key.tun_id);
+ vni = tunnel_id_to_key32(info->key.tun_id);
remote_ip.sa.sa_family = ip_tunnel_info_af(info);
if (remote_ip.sa.sa_family == AF_INET) {
remote_ip.sin.sin_addr.s_addr = info->key.u.ipv4.dst;
}
if (dst->sa.sa_family == AF_INET) {
- if (!vxlan->vn4_sock)
+ struct vxlan_sock *sock4 = rcu_dereference(vxlan->vn4_sock);
+
+ if (!sock4)
goto drop;
- sk = vxlan->vn4_sock->sock->sk;
+ sk = sock4->sock->sk;
rt = vxlan_get_route(vxlan, skb,
rdst ? rdst->remote_ifindex : 0, tos,
src_port, dst_port, xnet, !udp_sum);
#if IS_ENABLED(CONFIG_IPV6)
} else {
+ struct vxlan_sock *sock6 = rcu_dereference(vxlan->vn6_sock);
struct dst_entry *ndst;
u32 rt6i_flags;
- if (!vxlan->vn6_sock)
+ if (!sock6)
goto drop;
- sk = vxlan->vn6_sock->sock->sk;
+ sk = sock6->sock->sk;
ndst = vxlan6_get_route(vxlan, skb,
rdst ? rdst->remote_ifindex : 0, tos,
vni, md, flags, udp_sum);
if (err < 0) {
dst_release(ndst);
+ dev->stats.tx_errors++;
return;
}
udp_tunnel6_xmit_skb(ndst, sk, skb, dev,
dport = info->key.tp_dst ? : vxlan->cfg.dst_port;
if (ip_tunnel_info_af(info) == AF_INET) {
+ struct vxlan_sock *sock4 = rcu_dereference(vxlan->vn4_sock);
struct rtable *rt;
- if (!vxlan->vn4_sock)
+ if (!sock4)
return -EINVAL;
rt = vxlan_get_route(vxlan, skb, 0, info->key.tos,
info->key.u.ipv4.dst,
#if IS_ENABLED(CONFIG_IPV6)
struct dst_entry *ndst;
- if (!vxlan->vn6_sock)
- return -EINVAL;
ndst = vxlan6_get_route(vxlan, skb, 0, info->key.tos,
info->key.label, &info->key.u.ipv6.dst,
&info->key.u.ipv6.src, NULL, info);
return PTR_ERR(vs);
#if IS_ENABLED(CONFIG_IPV6)
if (ipv6)
- vxlan->vn6_sock = vs;
+ rcu_assign_pointer(vxlan->vn6_sock, vs);
else
#endif
- vxlan->vn4_sock = vs;
+ rcu_assign_pointer(vxlan->vn4_sock, vs);
vxlan_vs_add_dev(vs, vxlan);
return 0;
}
bool metadata = vxlan->flags & VXLAN_F_COLLECT_METADATA;
int ret = 0;
- vxlan->vn4_sock = NULL;
+ RCU_INIT_POINTER(vxlan->vn4_sock, NULL);
#if IS_ENABLED(CONFIG_IPV6)
- vxlan->vn6_sock = NULL;
+ RCU_INIT_POINTER(vxlan->vn6_sock, NULL);
if (ipv6 || metadata)
ret = __vxlan_sock_add(vxlan, true);
#endif
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