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authorNeal Cardwell <ncardwell@google.com>2012-06-28 12:34:19 +0000
committerDavid S. Miller <davem@davemloft.net>2012-06-28 17:53:50 -0700
commit3840a06e6046aaee95f33a120499d2dc8c054b9d (patch)
tree6a6acc85ad10729f25b4f3ac81f46facf03b978d /net/ipv6/tcp_ipv6.c
parenttcp: fix inet6_csk_route_req() for link-local addresses (diff)
downloadlinux-dev-3840a06e6046aaee95f33a120499d2dc8c054b9d.tar.xz
linux-dev-3840a06e6046aaee95f33a120499d2dc8c054b9d.zip
tcp: pass fl6 to inet6_csk_route_req()
This commit changes inet_csk_route_req() so that it uses a pointer to a struct flowi6, rather than allocating its own on the stack. This brings its behavior in line with its IPv4 cousin, inet_csk_route_req(), and allows a follow-on patch to fix a dst leak. Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
-rw-r--r--net/ipv6/tcp_ipv6.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index fc0b96bf9051..4e5fa5f6ec68 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -477,7 +477,8 @@ out:
}
-static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
+static int tcp_v6_send_synack(struct sock *sk,
+ struct request_sock *req,
struct request_values *rvp,
u16 queue_mapping)
{
@@ -1058,6 +1059,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
struct tcp_sock *tp = tcp_sk(sk);
__u32 isn = TCP_SKB_CB(skb)->when;
struct dst_entry *dst = NULL;
+ struct flowi6 fl6;
bool want_cookie = false;
if (skb->protocol == htons(ETH_P_IP))
@@ -1177,7 +1179,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
*/
if (tmp_opt.saw_tstamp &&
tcp_death_row.sysctl_tw_recycle &&
- (dst = inet6_csk_route_req(sk, req)) != NULL &&
+ (dst = inet6_csk_route_req(sk, &fl6, req)) != NULL &&
(peer = rt6_get_peer((struct rt6_info *)dst)) != NULL &&
ipv6_addr_equal((struct in6_addr *)peer->daddr.addr.a6,
&treq->rmt_addr)) {
@@ -1247,6 +1249,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
#ifdef CONFIG_TCP_MD5SIG
struct tcp_md5sig_key *key;
#endif
+ struct flowi6 fl6;
if (skb->protocol == htons(ETH_P_IP)) {
/*
@@ -1309,7 +1312,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
goto out_overflow;
if (!dst) {
- dst = inet6_csk_route_req(sk, req);
+ dst = inet6_csk_route_req(sk, &fl6, req);
if (!dst)
goto out;
}