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-rw-r--r--include/net/netlink.h18
1 files changed, 17 insertions, 1 deletions
diff --git a/include/net/netlink.h b/include/net/netlink.h
index 9298218c07f..a5506c42f03 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -91,6 +91,7 @@
* nla_reserve_nohdr(skb, len) reserve room for an attribute w/o hdr
* nla_put(skb, type, len, data) add attribute to skb
* nla_put_nohdr(skb, len, data) add attribute w/o hdr
+ * nla_append(skb, len, data) append data to skb
*
* Attribute Construction for Basic Types:
* nla_put_u8(skb, type, value) add u8 attribute to skb
@@ -217,6 +218,7 @@ struct nla_policy {
*/
struct nl_info {
struct nlmsghdr *nlh;
+ struct net *nl_net;
u32 pid;
};
@@ -253,6 +255,8 @@ extern int nla_put(struct sk_buff *skb, int attrtype,
int attrlen, const void *data);
extern int nla_put_nohdr(struct sk_buff *skb, int attrlen,
const void *data);
+extern int nla_append(struct sk_buff *skb, int attrlen,
+ const void *data);
/**************************************************************************
* Netlink Messages
@@ -862,7 +866,7 @@ static inline int nla_put_msecs(struct sk_buff *skb, int attrtype,
#define NLA_PUT(skb, attrtype, attrlen, data) \
do { \
- if (nla_put(skb, attrtype, attrlen, data) < 0) \
+ if (unlikely(nla_put(skb, attrtype, attrlen, data) < 0)) \
goto nla_put_failure; \
} while(0)
@@ -881,6 +885,9 @@ static inline int nla_put_msecs(struct sk_buff *skb, int attrtype,
#define NLA_PUT_LE16(skb, attrtype, value) \
NLA_PUT_TYPE(skb, __le16, attrtype, value)
+#define NLA_PUT_BE16(skb, attrtype, value) \
+ NLA_PUT_TYPE(skb, __be16, attrtype, value)
+
#define NLA_PUT_U32(skb, attrtype, value) \
NLA_PUT_TYPE(skb, u32, attrtype, value)
@@ -927,6 +934,15 @@ static inline u16 nla_get_u16(struct nlattr *nla)
}
/**
+ * nla_get_be16 - return payload of __be16 attribute
+ * @nla: __be16 netlink attribute
+ */
+static inline __be16 nla_get_be16(struct nlattr *nla)
+{
+ return *(__be16 *) nla_data(nla);
+}
+
+/**
* nla_get_le16 - return payload of __le16 attribute
* @nla: __le16 netlink attribute
*/