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authorDavid S. Miller <davem@davemloft.net>2011-05-19 02:32:03 +0400
committerDavid S. Miller <davem@davemloft.net>2011-05-19 02:32:03 +0400
commit6bd023f3dddfc7c5f660089598c10e1f4167083b (patch)
tree925a7a31d3db434cfda8679cb46e466697ef8bdd /net
parent6882f933ccee5c3a86443ffc7621ce888b93ab6b (diff)
downloadlinux-6bd023f3dddfc7c5f660089598c10e1f4167083b.tar.xz
ipv4: Make caller provide flowi4 key to inet_csk_route_req().
This way the caller can get at the fully resolved fl4->{daddr,saddr} etc. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/dccp/ipv4.c3
-rw-r--r--net/ipv4/inet_connection_sock.c10
-rw-r--r--net/ipv4/tcp_ipv4.c6
3 files changed, 11 insertions, 8 deletions
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 46b15e9e9b57..8c36adfd1919 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -497,8 +497,9 @@ static int dccp_v4_send_response(struct sock *sk, struct request_sock *req,
int err = -1;
struct sk_buff *skb;
struct dst_entry *dst;
+ struct flowi4 fl4;
- dst = inet_csk_route_req(sk, req);
+ dst = inet_csk_route_req(sk, &fl4, req);
if (dst == NULL)
goto out;
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 3a2ba5632dff..61fac4cabc78 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -350,24 +350,24 @@ void inet_csk_reset_keepalive_timer(struct sock *sk, unsigned long len)
EXPORT_SYMBOL(inet_csk_reset_keepalive_timer);
struct dst_entry *inet_csk_route_req(struct sock *sk,
+ struct flowi4 *fl4,
const struct request_sock *req)
{
struct rtable *rt;
const struct inet_request_sock *ireq = inet_rsk(req);
struct ip_options_rcu *opt = inet_rsk(req)->opt;
struct net *net = sock_net(sk);
- struct flowi4 fl4;
- flowi4_init_output(&fl4, sk->sk_bound_dev_if, sk->sk_mark,
+ flowi4_init_output(fl4, sk->sk_bound_dev_if, sk->sk_mark,
RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
sk->sk_protocol, inet_sk_flowi_flags(sk),
(opt && opt->opt.srr) ? opt->opt.faddr : ireq->rmt_addr,
ireq->loc_addr, ireq->rmt_port, inet_sk(sk)->inet_sport);
- security_req_classify_flow(req, flowi4_to_flowi(&fl4));
- rt = ip_route_output_flow(net, &fl4, sk);
+ security_req_classify_flow(req, flowi4_to_flowi(fl4));
+ rt = ip_route_output_flow(net, fl4, sk);
if (IS_ERR(rt))
goto no_route;
- if (opt && opt->opt.is_strictroute && fl4.daddr != rt->rt_gateway)
+ if (opt && opt->opt.is_strictroute && fl4->daddr != rt->rt_gateway)
goto route_err;
return &rt->dst;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index f67fb34e16e5..7e0bc604ebd2 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -769,11 +769,12 @@ static int tcp_v4_send_synack(struct sock *sk, struct dst_entry *dst,
struct request_values *rvp)
{
const struct inet_request_sock *ireq = inet_rsk(req);
+ struct flowi4 fl4;
int err = -1;
struct sk_buff * skb;
/* First, grab a route. */
- if (!dst && (dst = inet_csk_route_req(sk, req)) == NULL)
+ if (!dst && (dst = inet_csk_route_req(sk, &fl4, req)) == NULL)
return -1;
skb = tcp_make_synack(sk, dst, req, rvp);
@@ -1338,6 +1339,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
req->cookie_ts = tmp_opt.tstamp_ok;
} else if (!isn) {
struct inet_peer *peer = NULL;
+ struct flowi4 fl4;
/* VJ's idea. We save last timestamp seen
* from the destination in peer table, when entering
@@ -1350,7 +1352,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
*/
if (tmp_opt.saw_tstamp &&
tcp_death_row.sysctl_tw_recycle &&
- (dst = inet_csk_route_req(sk, req)) != NULL &&
+ (dst = inet_csk_route_req(sk, &fl4, req)) != NULL &&
(peer = rt_get_peer((struct rtable *)dst)) != NULL &&
peer->daddr.addr.a4 == saddr) {
inet_peer_refcheck(peer);