[NETFILTER]: ctnetlink: use netlink attribute helpers

Use NLA_PUT_BE32, nla_get_be32() etc.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 14 insertions, 26 deletions

diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index cd2d8451ddad..78e64951137a 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -363,10 +363,8 @@ getorigdst(struct sock *sk, int optval, void __user *user, int *len)
 static int ipv4_tuple_to_nlattr(struct sk_buff *skb,
 				const struct nf_conntrack_tuple *tuple)
 {
-	NLA_PUT(skb, CTA_IP_V4_SRC, sizeof(u_int32_t),
-		&tuple->src.u3.ip);
-	NLA_PUT(skb, CTA_IP_V4_DST, sizeof(u_int32_t),
-		&tuple->dst.u3.ip);
+	NLA_PUT_BE32(skb, CTA_IP_V4_SRC, tuple->src.u3.ip);
+	NLA_PUT_BE32(skb, CTA_IP_V4_DST, tuple->dst.u3.ip);
 	return 0;
 
 nla_put_failure:
@@ -384,8 +382,8 @@ static int ipv4_nlattr_to_tuple(struct nlattr *tb[],
 	if (!tb[CTA_IP_V4_SRC] || !tb[CTA_IP_V4_DST])
 		return -EINVAL;
 
-	t->src.u3.ip = *(__be32 *)nla_data(tb[CTA_IP_V4_SRC]);
-	t->dst.u3.ip = *(__be32 *)nla_data(tb[CTA_IP_V4_DST]);
+	t->src.u3.ip = nla_get_be32(tb[CTA_IP_V4_SRC]);
+	t->dst.u3.ip = nla_get_be32(tb[CTA_IP_V4_DST]);
 
 	return 0;
 }
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index 4153e0494983..3e2e5cdda9de 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -234,12 +234,9 @@ icmp_error(struct sk_buff *skb, unsigned int dataoff,
 static int icmp_tuple_to_nlattr(struct sk_buff *skb,
 				const struct nf_conntrack_tuple *t)
 {
-	NLA_PUT(skb, CTA_PROTO_ICMP_ID, sizeof(u_int16_t),
-		&t->src.u.icmp.id);
-	NLA_PUT(skb, CTA_PROTO_ICMP_TYPE, sizeof(u_int8_t),
-		&t->dst.u.icmp.type);
-	NLA_PUT(skb, CTA_PROTO_ICMP_CODE, sizeof(u_int8_t),
-		&t->dst.u.icmp.code);
+	NLA_PUT_BE16(skb, CTA_PROTO_ICMP_ID, t->src.u.icmp.id);
+	NLA_PUT_U8(skb, CTA_PROTO_ICMP_TYPE, t->dst.u.icmp.type);
+	NLA_PUT_U8(skb, CTA_PROTO_ICMP_CODE, t->dst.u.icmp.code);
 
 	return 0;
 
@@ -261,12 +258,9 @@ static int icmp_nlattr_to_tuple(struct nlattr *tb[],
 	    || !tb[CTA_PROTO_ICMP_ID])
 		return -EINVAL;
 
-	tuple->dst.u.icmp.type =
-			*(u_int8_t *)nla_data(tb[CTA_PROTO_ICMP_TYPE]);
-	tuple->dst.u.icmp.code =
-			*(u_int8_t *)nla_data(tb[CTA_PROTO_ICMP_CODE]);
-	tuple->src.u.icmp.id =
-			*(__be16 *)nla_data(tb[CTA_PROTO_ICMP_ID]);
+	tuple->dst.u.icmp.type = nla_get_u8(tb[CTA_PROTO_ICMP_TYPE]);
+	tuple->dst.u.icmp.code = nla_get_u8(tb[CTA_PROTO_ICMP_CODE]);
+	tuple->src.u.icmp.id = nla_get_be16(tb[CTA_PROTO_ICMP_ID]);
 
 	if (tuple->dst.u.icmp.type >= sizeof(invmap)
 	    || !invmap[tuple->dst.u.icmp.type])
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index 746c2efddcd1..4ee67e9f42ba 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -547,10 +547,8 @@ int
 nf_nat_port_range_to_nlattr(struct sk_buff *skb,
 			    const struct nf_nat_range *range)
 {
-	NLA_PUT(skb, CTA_PROTONAT_PORT_MIN, sizeof(__be16),
-		&range->min.tcp.port);
-	NLA_PUT(skb, CTA_PROTONAT_PORT_MAX, sizeof(__be16),
-		&range->max.tcp.port);
+	NLA_PUT_BE16(skb, CTA_PROTONAT_PORT_MIN, range->min.tcp.port);
+	NLA_PUT_BE16(skb, CTA_PROTONAT_PORT_MAX, range->max.tcp.port);
 
 	return 0;
 
@@ -568,8 +566,7 @@ nf_nat_port_nlattr_to_range(struct nlattr *tb[], struct nf_nat_range *range)
 
 	if (tb[CTA_PROTONAT_PORT_MIN]) {
 		ret = 1;
-		range->min.tcp.port =
-			*(__be16 *)nla_data(tb[CTA_PROTONAT_PORT_MIN]);
+		range->min.tcp.port = nla_get_be16(tb[CTA_PROTONAT_PORT_MIN]);
 	}
 
 	if (!tb[CTA_PROTONAT_PORT_MAX]) {
@@ -577,8 +574,7 @@ nf_nat_port_nlattr_to_range(struct nlattr *tb[], struct nf_nat_range *range)
 			range->max.tcp.port = range->min.tcp.port;
 	} else {
 		ret = 1;
-		range->max.tcp.port =
-			*(__be16 *)nla_data(tb[CTA_PROTONAT_PORT_MAX]);
+		range->max.tcp.port = nla_get_be16(tb[CTA_PROTONAT_PORT_MAX]);
 	}
 
 	return ret;