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ipv4: Loosen source address check on IPv4 output

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ip_route_output() contains a check to make sure that no flows with
non-local source IP addresses are routed. This obviously makes using
such addresses impossible.

This patch introduces a flowi flag which makes omitting this check
possible. The new flag provides a way of handling transparent and
non-transparent connections differently.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julian Anastasov 2008-10-01 07:28:28 -07:00 • committed by David S. Miller
parent 4edd87ad5c
commit a210d01ae3
2 changed files with 15 additions and 7 deletions
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2
include/net/flow.h
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@ -47,6 +47,8 @@ struct flowi {
#define fl4_scope nl_u.ip4_u.scope
__u8 proto;
__u8 flags;
#define FLOWI_FLAG_ANYSRC 0x01
union {
struct {
__be16 sport;