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authorDavid S. Miller <davem@davemloft.net>2010-12-01 18:09:13 -0800
committerDavid S. Miller <davem@davemloft.net>2010-12-01 18:09:13 -0800
commitccb7c410ddc054b8c1ae780319bc98ae092d3854 (patch)
tree6a363c7232121d2390c091b232ee758fa10e4446 /net/ipv6
parent4399ce402c7c837dec80bf9fb40d079b39b9265a (diff)
downloadop-kernel-dev-ccb7c410ddc054b8c1ae780319bc98ae092d3854.zip
op-kernel-dev-ccb7c410ddc054b8c1ae780319bc98ae092d3854.tar.gz
timewait_sock: Create and use getpeer op.
The only thing AF-specific about remembering the timestamp for a time-wait TCP socket is getting the peer. Abstract that behind a new timewait_sock_ops vector. Support for real IPV6 sockets is not filled in yet, but curiously this makes timewait recycling start to work for v4-mapped ipv6 sockets. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/tcp_ipv6.c26
1 files changed, 19 insertions, 7 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index e394d00..5f73a18 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -906,12 +906,6 @@ static const struct tcp_request_sock_ops tcp_request_sock_ipv6_ops = {
};
#endif
-static struct timewait_sock_ops tcp6_timewait_sock_ops = {
- .twsk_obj_size = sizeof(struct tcp6_timewait_sock),
- .twsk_unique = tcp_twsk_unique,
- .twsk_destructor= tcp_twsk_destructor,
-};
-
static void __tcp_v6_send_check(struct sk_buff *skb,
struct in6_addr *saddr, struct in6_addr *daddr)
{
@@ -1818,12 +1812,30 @@ do_time_wait:
goto discard_it;
}
-struct inet_peer *tcp_v6_get_peer(struct sock *sk, bool *release_it)
+static struct inet_peer *tcp_v6_get_peer(struct sock *sk, bool *release_it)
+{
+ /* Alas, not yet... */
+ return NULL;
+}
+
+static void *tcp_v6_tw_get_peer(struct sock *sk)
{
+ struct inet_timewait_sock *tw = inet_twsk(sk);
+
+ if (tw->tw_family == AF_INET)
+ return tcp_v4_tw_get_peer(sk);
+
/* Alas, not yet... */
return NULL;
}
+static struct timewait_sock_ops tcp6_timewait_sock_ops = {
+ .twsk_obj_size = sizeof(struct tcp6_timewait_sock),
+ .twsk_unique = tcp_twsk_unique,
+ .twsk_destructor= tcp_twsk_destructor,
+ .twsk_getpeer = tcp_v6_tw_get_peer,
+};
+
static const struct inet_connection_sock_af_ops ipv6_specific = {
.queue_xmit = inet6_csk_xmit,
.send_check = tcp_v6_send_check,
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