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authorTom Herbert <therbert@google.com>2014-05-23 08:47:19 -0700
committerDavid S. Miller <davem@davemloft.net>2014-05-23 16:28:53 -0400
commit28448b80456feafe07e2d05b6363b00f61f6171e (patch)
treead45836de4e3bdb441a78f825d7f53ed8e8c7096 /net
parentb26ba202e0500eb852e89499ece1b2deaa64c3a7 (diff)
downloadlwn-28448b80456feafe07e2d05b6363b00f61f6171e.tar.gz
lwn-28448b80456feafe07e2d05b6363b00f61f6171e.zip
net: Split sk_no_check into sk_no_check_{rx,tx}
Define separate fields in the sock structure for configuring disabling checksums in both TX and RX-- sk_no_check_tx and sk_no_check_rx. The SO_NO_CHECK socket option only affects sk_no_check_tx. Also, removed UDP_CSUM_* defines since they are no longer necessary. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/appletalk/ddp.c2
-rw-r--r--net/core/sock.c4
-rw-r--r--net/decnet/af_decnet.c2
-rw-r--r--net/ipv4/udp.c2
-rw-r--r--net/ipv6/udp.c6
-rw-r--r--net/ipx/af_ipx.c2
-rw-r--r--net/ipx/ipx_route.c3
-rw-r--r--net/l2tp/l2tp_core.c4
-rw-r--r--net/l2tp/l2tp_netlink.c3
-rw-r--r--net/sctp/socket.c3
10 files changed, 16 insertions, 15 deletions
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 786ee2f83d5f..01a1082e02b3 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1669,7 +1669,7 @@ static int atalk_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr
goto out;
}
- if (sk->sk_no_check == 1)
+ if (sk->sk_no_check_tx)
ddp->deh_sum = 0;
else
ddp->deh_sum = atalk_checksum(skb, len + sizeof(*ddp));
diff --git a/net/core/sock.c b/net/core/sock.c
index 664ee4295b6f..026e01f70274 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -784,7 +784,7 @@ set_rcvbuf:
break;
case SO_NO_CHECK:
- sk->sk_no_check = valbool;
+ sk->sk_no_check_tx = valbool;
break;
case SO_PRIORITY:
@@ -1064,7 +1064,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
break;
case SO_NO_CHECK:
- v.val = sk->sk_no_check;
+ v.val = sk->sk_no_check_tx;
break;
case SO_PRIORITY:
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index 4c04848953bd..ae011b46c071 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -481,7 +481,7 @@ static struct sock *dn_alloc_sock(struct net *net, struct socket *sock, gfp_t gf
sk->sk_backlog_rcv = dn_nsp_backlog_rcv;
sk->sk_destruct = dn_destruct;
- sk->sk_no_check = 1;
+ sk->sk_no_check_tx = 1;
sk->sk_family = PF_DECnet;
sk->sk_protocol = 0;
sk->sk_allocation = gfp;
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 590532a7bd2d..12c6175b29cd 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -785,7 +785,7 @@ static int udp_send_skb(struct sk_buff *skb, struct flowi4 *fl4)
if (is_udplite) /* UDP-Lite */
csum = udplite_csum(skb);
- else if (sk->sk_no_check == UDP_CSUM_NOXMIT) { /* UDP csum disabled */
+ else if (sk->sk_no_check_tx) { /* UDP csum disabled */
skb->ip_summed = CHECKSUM_NONE;
goto send;
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index c7ed47bde54b..b8db453133aa 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -797,7 +797,7 @@ static int __udp6_lib_mcast_deliver(struct net *net, struct sk_buff *skb,
/* If zero checksum and sk_no_check is not on for
* the socket then skip it.
*/
- if (uh->check || sk->sk_no_check)
+ if (uh->check || sk->sk_no_check_rx)
stack[count++] = sk;
sk = udp_v6_mcast_next(net, sk_nulls_next(sk), uh->dest, daddr,
@@ -887,7 +887,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
if (sk != NULL) {
int ret;
- if (!uh->check && !sk->sk_no_check) {
+ if (!uh->check && !sk->sk_no_check_rx) {
sock_put(sk);
udp6_csum_zero_error(skb);
goto csum_error;
@@ -1037,7 +1037,7 @@ static int udp_v6_push_pending_frames(struct sock *sk)
if (is_udplite)
csum = udplite_csum_outgoing(sk, skb);
- else if (sk->sk_no_check == UDP_CSUM_NOXMIT) { /* UDP csum disabled */
+ else if (sk->sk_no_check_tx) { /* UDP csum disabled */
skb->ip_summed = CHECKSUM_NONE;
goto send;
} else if (skb->ip_summed == CHECKSUM_PARTIAL) { /* UDP hardware csum */
diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
index 41e4e93cb3aa..91729b807c7d 100644
--- a/net/ipx/af_ipx.c
+++ b/net/ipx/af_ipx.c
@@ -1353,7 +1353,7 @@ static int ipx_create(struct net *net, struct socket *sock, int protocol,
sk_refcnt_debug_inc(sk);
sock_init_data(sock, sk);
- sk->sk_no_check = 1; /* Checksum off by default */
+ sk->sk_no_check_tx = 1; /* Checksum off by default */
sock->ops = &ipx_dgram_ops;
rc = 0;
out:
diff --git a/net/ipx/ipx_route.c b/net/ipx/ipx_route.c
index c1f03185c5e1..67e7ad3d46b1 100644
--- a/net/ipx/ipx_route.c
+++ b/net/ipx/ipx_route.c
@@ -236,7 +236,8 @@ int ipxrtr_route_packet(struct sock *sk, struct sockaddr_ipx *usipx,
}
/* Apply checksum. Not allowed on 802.3 links. */
- if (sk->sk_no_check || intrfc->if_dlink_type == htons(IPX_FRAME_8023))
+ if (sk->sk_no_check_tx ||
+ intrfc->if_dlink_type == htons(IPX_FRAME_8023))
ipx->ipx_checksum = htons(0xFFFF);
else
ipx->ipx_checksum = ipx_cksum(ipx, len + sizeof(struct ipxhdr));
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index ed0716a075ba..a1186105f537 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1188,7 +1188,7 @@ int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len
l2tp_xmit_ipv6_csum(sk, skb, udp_len);
else
#endif
- if (sk->sk_no_check == UDP_CSUM_NOXMIT)
+ if (sk->sk_no_check_tx)
skb->ip_summed = CHECKSUM_NONE;
else if ((skb_dst(skb) && skb_dst(skb)->dev) &&
(!(skb_dst(skb)->dev->features & NETIF_F_V4_CSUM))) {
@@ -1463,7 +1463,7 @@ static int l2tp_tunnel_sock_create(struct net *net,
}
if (!cfg->use_udp_checksums)
- sock->sk->sk_no_check = UDP_CSUM_NOXMIT;
+ sock->sk->sk_no_check_tx = 1;
break;
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index bd7387adea9e..f3d331bdd706 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -297,8 +297,7 @@ static int l2tp_nl_tunnel_send(struct sk_buff *skb, u32 portid, u32 seq, int fla
case L2TP_ENCAPTYPE_UDP:
if (nla_put_u16(skb, L2TP_ATTR_UDP_SPORT, ntohs(inet->inet_sport)) ||
nla_put_u16(skb, L2TP_ATTR_UDP_DPORT, ntohs(inet->inet_dport)) ||
- nla_put_u8(skb, L2TP_ATTR_UDP_CSUM,
- (sk->sk_no_check != UDP_CSUM_NOXMIT)))
+ nla_put_u8(skb, L2TP_ATTR_UDP_CSUM, !sk->sk_no_check_tx))
goto nla_put_failure;
/* NOBREAK */
case L2TP_ENCAPTYPE_IP:
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 2af76eaba8f7..429899689408 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -6946,7 +6946,8 @@ void sctp_copy_sock(struct sock *newsk, struct sock *sk,
newsk->sk_type = sk->sk_type;
newsk->sk_bound_dev_if = sk->sk_bound_dev_if;
newsk->sk_flags = sk->sk_flags;
- newsk->sk_no_check = sk->sk_no_check;
+ newsk->sk_no_check_tx = sk->sk_no_check_tx;
+ newsk->sk_no_check_rx = sk->sk_no_check_rx;
newsk->sk_reuse = sk->sk_reuse;
newsk->sk_shutdown = sk->sk_shutdown;