TPROXY: supply a struct flowi->flags argument in inet_sk_rebuild_header()

    inet_sk_rebuild_header() does a new route lookup if the dst_entry
    associated with a socket becomes stale. However inet_sk_rebuild_header()
    didn't use struct flowi->flags, causing the route lookup to
    fail for foreign-bound IP_TRANSPARENT sockets, causing an error
    state to be set for the sockets in question.

Signed-off-by: Balazs Scheidler <bazsi@balabit.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 1fbff5fa424101fb463905be71d1cc06299fa74c..1aa2dc9e380ec237c3a4abc8d1e29911bc09dacb 100644 (file)
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1117,6 +1117,7 @@ int inet_sk_rebuild_header(struct sock *sk)
                        },
                },
                .proto = sk->sk_protocol,
+               .flags = inet_sk_flowi_flags(sk),
                .uli_u = {
                        .ports = {
                                .sport = inet->sport,