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TPROXY: fill struct flowi->flags in udp_sendmsg() 

udp_sendmsg() didn't fill struct flowi->flags, which means that
    the route lookup would fail for non-local IPs even if the
    IP_TRANSPARENT sockopt was set.

    This prevents sendto() to work properly for UDP sockets, whereas
    bind(foreign-ip) + connect() + send() worked fine.

Signed-off-by: Balazs Scheidler <bazsi@balabit.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Balazs Scheidler 2008-11-20 01:07:24 -08:00 committed by David S. Miller
parent b88ed5cc88
commit a134f85c13
1 changed files with 1 additions and 0 deletions
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net/ipv4/udp.c
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@ -633,6 +633,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
.saddr = saddr,
.tos = tos } },
.proto = sk->sk_protocol,
.flags = inet_sk_flowi_flags(sk),
.uli_u = { .ports =
{ .sport = inet->sport,
.dport = dport } } };