sock: Introduce named constants for sk_reuse
Name them in a "backward compatible" manner, i.e. reuse or not
are still 1 and 0 respectively. The reuse value of 2 means that
the socket with it will forcibly reuse everyone else's port.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/sock.c b/net/core/sock.c
index c7e60ea..679c5bb 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -561,7 +561,7 @@
sock_valbool_flag(sk, SOCK_DBG, valbool);
break;
case SO_REUSEADDR:
- sk->sk_reuse = valbool;
+ sk->sk_reuse = (valbool ? SK_CAN_REUSE : SK_NO_REUSE);
break;
case SO_TYPE:
case SO_PROTOCOL:
diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index 71b5edc..fa14ca7 100644
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -617,7 +617,7 @@
if (sk == NULL)
goto out;
- sk->sk_reuse = 1;
+ sk->sk_reuse = SK_CAN_REUSE;
sock->ops = &econet_ops;
sock_init_data(sock, sk);
@@ -1012,7 +1012,7 @@
return error;
}
- udpsock->sk->sk_reuse = 1;
+ udpsock->sk->sk_reuse = SK_CAN_REUSE;
udpsock->sk->sk_allocation = GFP_ATOMIC; /* we're going to call it
from interrupts */
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 3744c1c..c8f7aee 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -350,7 +350,7 @@
err = 0;
sk->sk_no_check = answer_no_check;
if (INET_PROTOSW_REUSE & answer_flags)
- sk->sk_reuse = 1;
+ sk->sk_reuse = SK_CAN_REUSE;
inet = inet_sk(sk);
inet->is_icsk = (INET_PROTOSW_ICSK & answer_flags) != 0;
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 7d972f6..95e61596 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -182,6 +182,9 @@
goto tb_not_found;
tb_found:
if (!hlist_empty(&tb->owners)) {
+ if (sk->sk_reuse == SK_FORCE_REUSE)
+ goto success;
+
if (tb->fastreuse > 0 &&
sk->sk_reuse && sk->sk_state != TCP_LISTEN &&
smallest_size == -1) {
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 461e789..0ad046c 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -180,7 +180,7 @@
err = 0;
sk->sk_no_check = answer_no_check;
if (INET_PROTOSW_REUSE & answer_flags)
- sk->sk_reuse = 1;
+ sk->sk_reuse = SK_CAN_REUSE;
inet = inet_sk(sk);
inet->is_icsk = (INET_PROTOSW_ICSK & answer_flags) != 0;
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index f4e0b6c..bf5e538 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -1368,7 +1368,7 @@
*/
sk_change_net(sock->sk, net);
/* it is equivalent to the REUSEADDR option in user-space */
- sock->sk->sk_reuse = 1;
+ sock->sk->sk_reuse = SK_CAN_REUSE;
result = sock->ops->bind(sock, (struct sockaddr *) &mcast_addr,
sizeof(struct sockaddr));
diff --git a/net/rds/tcp_listen.c b/net/rds/tcp_listen.c
index 8b5cc4a..7298137 100644
--- a/net/rds/tcp_listen.c
+++ b/net/rds/tcp_listen.c
@@ -145,7 +145,7 @@
if (ret < 0)
goto out;
- sock->sk->sk_reuse = 1;
+ sock->sk->sk_reuse = SK_CAN_REUSE;
rds_tcp_nonagle(sock);
write_lock_bh(&sock->sk->sk_callback_lock);
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 824d32f..f0132b2 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -1556,7 +1556,7 @@
(char *)&val, sizeof(val));
if (type == SOCK_STREAM)
- sock->sk->sk_reuse = 1; /* allow address reuse */
+ sock->sk->sk_reuse = SK_CAN_REUSE; /* allow address reuse */
error = kernel_bind(sock, sin, len);
if (error < 0)
goto bummer;