From: Balazs Scheidler <bazsi@balabit.hu>
Date: Thu, 20 Nov 2008 09:07:24 +0000 (-0800)
Subject: TPROXY: fill struct flowi->flags in udp_sendmsg()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a134f85c131ffd56720e38af2967ec6265480757;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

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>
---

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index cf02701ced48..98c1fd09be88 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -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 } } };