Commit cd0f0b95 authored by Duan Jiong's avatar Duan Jiong Committed by David S. Miller
Browse files

ipv4: distinguish EHOSTUNREACH from the ENETUNREACH

since commit 251da413

("ipv4: Cache ip_error() routes even when not forwarding."),
the counter IPSTATS_MIB_INADDRERRORS can't work correctly, because the value of
err was always set to ENETUNREACH.
Signed-off-by: default avatarDuan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 891de74d
......@@ -1695,8 +1695,11 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
fl4.daddr = daddr;
fl4.saddr = saddr;
err = fib_lookup(net, &fl4, &res);
if (err != 0)
if (err != 0) {
if (!IN_DEV_FORWARD(in_dev))
err = -EHOSTUNREACH;
goto no_route;
}
RT_CACHE_STAT_INC(in_slow_tot);
......@@ -1712,8 +1715,10 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
goto local_input;
}
if (!IN_DEV_FORWARD(in_dev))
if (!IN_DEV_FORWARD(in_dev)) {
err = -EHOSTUNREACH;
goto no_route;
}
if (res.type != RTN_UNICAST)
goto martian_destination;
......
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