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ipv4: Make Netfilter's ip_route_me_harder() non-local address compatible

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Netfilter's ip_route_me_harder() tries to re-route packets either
generated or re-routed by Netfilter. This patch changes
ip_route_me_harder() to handle packets from non-locally-bound sockets
with IP_TRANSPARENT set as local and to set the appropriate flowi
flags when re-doing the routing lookup.

Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
KOVACS Krisztian
2008-10-01 07:44:42 -07:00
committed by David S. Miller
parent 88ef4a5a78
commit 86b08d867d
5 changed files with 15 additions and 1 deletions
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2
net/ipv4/syncookies.c
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@@ -16,6 +16,7 @@
#include <linux/cryptohash.h>
#include <linux/kernel.h>
#include <net/tcp.h>
#include <net/route.h>
/* Timestamps: lowest 9 bits store TCP options */
#define TSBITS 9
@@ -337,6 +338,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
.saddr = ireq->loc_addr,
.tos = RT_CONN_FLAGS(sk) } },
.proto = IPPROTO_TCP,
.flags = inet_sk_flowi_flags(sk),
.uli_u = { .ports =
{ .sport = th->dest,
.dport = th->source } } };