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ipv4: Create and use route lookup helpers.

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The idea here is this minimizes the number of places one has to edit
in order to make changes to how flows are defined and used.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2011-03-12 00:00:52 -05:00
parent 1561747ddf
commit 78fbfd8a65
23 changed files with 204 additions and 324 deletions
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20
net/ipv4/af_inet.c
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@@ -1157,22 +1157,10 @@ int inet_sk_rebuild_header(struct sock *sk)
daddr = inet->inet_daddr;
if (inet->opt && inet->opt->srr)
daddr = inet->opt->faddr;
{
struct flowi fl = {
.oif = sk->sk_bound_dev_if,
.mark = sk->sk_mark,
.fl4_dst = daddr,
.fl4_src = inet->inet_saddr,
.fl4_tos = RT_CONN_FLAGS(sk),
.proto = sk->sk_protocol,
.flags = inet_sk_flowi_flags(sk),
.fl_ip_sport = inet->inet_sport,
.fl_ip_dport = inet->inet_dport,
};
security_sk_classify_flow(sk, &fl);
rt = ip_route_output_flow(sock_net(sk), &fl, sk);
}
rt = ip_route_output_ports(sock_net(sk), sk, daddr, inet->inet_saddr,
inet->inet_dport, inet->inet_sport,
sk->sk_protocol, RT_CONN_FLAGS(sk),
sk->sk_bound_dev_if);
if (!IS_ERR(rt)) {
err = 0;
sk_setup_caps(sk, &rt->dst);