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-rw-r--r--include/net/inet_sock.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index a80fd0ac4563..e8eef85006aa 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -130,6 +130,27 @@ static inline int inet_request_bound_dev_if(const struct sock *sk,
return sk->sk_bound_dev_if;
}
+static inline int inet_sk_bound_l3mdev(const struct sock *sk)
+{
+#ifdef CONFIG_NET_L3_MASTER_DEV
+ struct net *net = sock_net(sk);
+
+ if (!net->ipv4.sysctl_tcp_l3mdev_accept)
+ return l3mdev_master_ifindex_by_index(net,
+ sk->sk_bound_dev_if);
+#endif
+
+ return 0;
+}
+
+static inline bool inet_bound_dev_eq(bool l3mdev_accept, int bound_dev_if,
+ int dif, int sdif)
+{
+ if (!bound_dev_if)
+ return !sdif || l3mdev_accept;
+ return bound_dev_if == dif || bound_dev_if == sdif;
+}
+
struct inet_cork {
unsigned int flags;
__be32 addr;