libnl: nla_put_be64(): align on a 64-bit area

nla_data() is now aligned on a 64-bit area.

A temporary version (nla_put_be64_32bit()) is added for nla_put_net64().
This function is removed in the next patch.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 files changed, 27 insertions, 4 deletions

diff --git a/include/net/netlink.h b/include/net/netlink.h
index 7f6b99483ab7..47d7d1356fa3 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -856,16 +856,23 @@ static inline int nla_put_u64(struct sk_buff *skb, int attrtype, u64 value)
 }
 
 /**
- * nla_put_be64 - Add a __be64 netlink attribute to a socket buffer
+ * nla_put_be64 - Add a __be64 netlink attribute to a socket buffer and align it
  * @skb: socket buffer to add attribute to
  * @attrtype: attribute type
  * @value: numeric value
+ * @padattr: attribute type for the padding
  */
-static inline int nla_put_be64(struct sk_buff *skb, int attrtype, __be64 value)
+static inline int nla_put_be64(struct sk_buff *skb, int attrtype, __be64 value,
+			       int padattr)
 {
-	return nla_put(skb, attrtype, sizeof(__be64), &value);
+	return nla_put_64bit(skb, attrtype, sizeof(__be64), &value, padattr);
 }
 
+static inline int nla_put_be64_32bit(struct sk_buff *skb, int attrtype,
+				     __be64 value)
+{
+	return nla_put(skb, attrtype, sizeof(__be64), &value);
+}
 /**
  * nla_put_net64 - Add 64-bit network byte order netlink attribute to a socket buffer
  * @skb: socket buffer to add attribute to
@@ -874,7 +881,7 @@ static inline int nla_put_be64(struct sk_buff *skb, int attrtype, __be64 value)
  */
 static inline int nla_put_net64(struct sk_buff *skb, int attrtype, __be64 value)
 {
-	return nla_put_be64(skb, attrtype | NLA_F_NET_BYTEORDER, value);
+	return nla_put_be64_32bit(skb, attrtype | NLA_F_NET_BYTEORDER, value);
 }
 
 /**
diff --git a/include/uapi/linux/fib_rules.h b/include/uapi/linux/fib_rules.h
index 96161b8202b5..620c8a5ddc00 100644
--- a/include/uapi/linux/fib_rules.h
+++ b/include/uapi/linux/fib_rules.h
@@ -49,6 +49,7 @@ enum {
 	FRA_TABLE,	/* Extended table id */
 	FRA_FWMASK,	/* mask for netfilter mark */
 	FRA_OIFNAME,
+	FRA_PAD,
 	__FRA_MAX
 };
 
diff --git a/include/uapi/linux/lwtunnel.h b/include/uapi/linux/lwtunnel.h
index f8b01887a495..a478fe80e203 100644
--- a/include/uapi/linux/lwtunnel.h
+++ b/include/uapi/linux/lwtunnel.h
@@ -22,6 +22,7 @@ enum lwtunnel_ip_t {
 	LWTUNNEL_IP_TTL,
 	LWTUNNEL_IP_TOS,
 	LWTUNNEL_IP_FLAGS,
+	LWTUNNEL_IP_PAD,
 	__LWTUNNEL_IP_MAX,
 };
 
@@ -35,6 +36,7 @@ enum lwtunnel_ip6_t {
 	LWTUNNEL_IP6_HOPLIMIT,
 	LWTUNNEL_IP6_TC,
 	LWTUNNEL_IP6_FLAGS,
+	LWTUNNEL_IP6_PAD,
 	__LWTUNNEL_IP6_MAX,
 };
 
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index eeffde196f80..660231363bb5 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -182,6 +182,7 @@ enum nft_chain_attributes {
 	NFTA_CHAIN_USE,
 	NFTA_CHAIN_TYPE,
 	NFTA_CHAIN_COUNTERS,
+	NFTA_CHAIN_PAD,
 	__NFTA_CHAIN_MAX
 };
 #define NFTA_CHAIN_MAX		(__NFTA_CHAIN_MAX - 1)
@@ -206,6 +207,7 @@ enum nft_rule_attributes {
 	NFTA_RULE_COMPAT,
 	NFTA_RULE_POSITION,
 	NFTA_RULE_USERDATA,
+	NFTA_RULE_PAD,
 	__NFTA_RULE_MAX
 };
 #define NFTA_RULE_MAX		(__NFTA_RULE_MAX - 1)
@@ -308,6 +310,7 @@ enum nft_set_attributes {
 	NFTA_SET_TIMEOUT,
 	NFTA_SET_GC_INTERVAL,
 	NFTA_SET_USERDATA,
+	NFTA_SET_PAD,
 	__NFTA_SET_MAX
 };
 #define NFTA_SET_MAX		(__NFTA_SET_MAX - 1)
@@ -341,6 +344,7 @@ enum nft_set_elem_attributes {
 	NFTA_SET_ELEM_EXPIRATION,
 	NFTA_SET_ELEM_USERDATA,
 	NFTA_SET_ELEM_EXPR,
+	NFTA_SET_ELEM_PAD,
 	__NFTA_SET_ELEM_MAX
 };
 #define NFTA_SET_ELEM_MAX	(__NFTA_SET_ELEM_MAX - 1)
@@ -584,6 +588,7 @@ enum nft_dynset_attributes {
 	NFTA_DYNSET_SREG_DATA,
 	NFTA_DYNSET_TIMEOUT,
 	NFTA_DYNSET_EXPR,
+	NFTA_DYNSET_PAD,
 	__NFTA_DYNSET_MAX,
 };
 #define NFTA_DYNSET_MAX		(__NFTA_DYNSET_MAX - 1)
@@ -806,6 +811,7 @@ enum nft_limit_attributes {
 	NFTA_LIMIT_BURST,
 	NFTA_LIMIT_TYPE,
 	NFTA_LIMIT_FLAGS,
+	NFTA_LIMIT_PAD,
 	__NFTA_LIMIT_MAX
 };
 #define NFTA_LIMIT_MAX		(__NFTA_LIMIT_MAX - 1)
@@ -820,6 +826,7 @@ enum nft_counter_attributes {
 	NFTA_COUNTER_UNSPEC,
 	NFTA_COUNTER_BYTES,
 	NFTA_COUNTER_PACKETS,
+	NFTA_COUNTER_PAD,
 	__NFTA_COUNTER_MAX
 };
 #define NFTA_COUNTER_MAX	(__NFTA_COUNTER_MAX - 1)
@@ -1055,6 +1062,7 @@ enum nft_trace_attibutes {
 	NFTA_TRACE_MARK,
 	NFTA_TRACE_NFPROTO,
 	NFTA_TRACE_POLICY,
+	NFTA_TRACE_PAD,
 	__NFTA_TRACE_MAX
 };
 #define NFTA_TRACE_MAX (__NFTA_TRACE_MAX - 1)
diff --git a/include/uapi/linux/netfilter/nfnetlink_acct.h b/include/uapi/linux/netfilter/nfnetlink_acct.h
index f3e34dbbf966..36047ec70f37 100644
--- a/include/uapi/linux/netfilter/nfnetlink_acct.h
+++ b/include/uapi/linux/netfilter/nfnetlink_acct.h
@@ -29,6 +29,7 @@ enum nfnl_acct_type {
 	NFACCT_FLAGS,
 	NFACCT_QUOTA,
 	NFACCT_FILTER,
+	NFACCT_PAD,
 	__NFACCT_MAX
 };
 #define NFACCT_MAX (__NFACCT_MAX - 1)
diff --git a/include/uapi/linux/netfilter/nfnetlink_conntrack.h b/include/uapi/linux/netfilter/nfnetlink_conntrack.h
index c1a4e1441a25..9df789709abe 100644
--- a/include/uapi/linux/netfilter/nfnetlink_conntrack.h
+++ b/include/uapi/linux/netfilter/nfnetlink_conntrack.h
@@ -116,6 +116,7 @@ enum ctattr_protoinfo_dccp {
 	CTA_PROTOINFO_DCCP_STATE,
 	CTA_PROTOINFO_DCCP_ROLE,
 	CTA_PROTOINFO_DCCP_HANDSHAKE_SEQ,
+	CTA_PROTOINFO_DCCP_PAD,
 	__CTA_PROTOINFO_DCCP_MAX,
 };
 #define CTA_PROTOINFO_DCCP_MAX (__CTA_PROTOINFO_DCCP_MAX - 1)
@@ -135,6 +136,7 @@ enum ctattr_counters {
 	CTA_COUNTERS_BYTES,		/* 64bit counters */
 	CTA_COUNTERS32_PACKETS,		/* old 32bit counters, unused */
 	CTA_COUNTERS32_BYTES,		/* old 32bit counters, unused */
+	CTA_COUNTERS_PAD,
 	__CTA_COUNTERS_MAX
 };
 #define CTA_COUNTERS_MAX (__CTA_COUNTERS_MAX - 1)
@@ -143,6 +145,7 @@ enum ctattr_tstamp {
 	CTA_TIMESTAMP_UNSPEC,
 	CTA_TIMESTAMP_START,
 	CTA_TIMESTAMP_STOP,
+	CTA_TIMESTAMP_PAD,
 	__CTA_TIMESTAMP_MAX
 };
 #define CTA_TIMESTAMP_MAX (__CTA_TIMESTAMP_MAX - 1)
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 616d04761730..0358f94af86e 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -351,6 +351,7 @@ enum ovs_tunnel_key_attr {
 	OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS,		/* Nested OVS_VXLAN_EXT_* */
 	OVS_TUNNEL_KEY_ATTR_IPV6_SRC,		/* struct in6_addr src IPv6 address. */
 	OVS_TUNNEL_KEY_ATTR_IPV6_DST,		/* struct in6_addr dst IPv6 address. */
+	OVS_TUNNEL_KEY_ATTR_PAD,
 	__OVS_TUNNEL_KEY_ATTR_MAX
 };