1 files changed, 45 insertions, 0 deletions

diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 91ac97c20777..a09b5d42babf 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -789,6 +789,51 @@ extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const voi
 ({      if (unlikely(skb_tailroom(skb) < (int)(attrlen))) \
                 goto rtattr_failure; \
         memcpy(skb_put(skb, RTA_ALIGN(attrlen)), data, attrlen); })
+
+#define RTA_PUT_U32(skb, attrtype, value) \
+({      u32 _tmp = (value); \
+        RTA_PUT(skb, attrtype, sizeof(u32), &_tmp); })
+
+#define RTA_PUT_U64(skb, attrtype, value) \
+({      u64 _tmp = (value); \
+        RTA_PUT(skb, attrtype, sizeof(u64), &_tmp); })
+
+#define RTA_PUT_SECS(skb, attrtype, value) \
+        RTA_PUT_U64(skb, attrtype, (value) / HZ)
+
+#define RTA_PUT_MSECS(skb, attrtype, value) \
+        RTA_PUT_U64(skb, attrtype, jiffies_to_msecs(value))
+
+#define RTA_PUT_STRING(skb, attrtype, value) \
+        RTA_PUT(skb, attrtype, strlen(value) + 1, value)
+
+#define RTA_NEST(skb, type) \
+({      struct rtattr *__start = (struct rtattr *) (skb)->tail; \
+        RTA_PUT(skb, type, 0, NULL); \
+        __start;  })
+
+#define RTA_NEST_END(skb, start) \
+({      (start)->rta_len = ((skb)->tail - (unsigned char *) (start)); \
+        (skb)->len; })
+
+#define RTA_NEST_CANCEL(skb, start) \
+({      skb_trim(skb, (unsigned char *) (start) - (skb)->data); \
+        -1; })
+
+#define RTA_GET_U32(rta) \
+({      if (!rta || RTA_PAYLOAD(rta) < sizeof(u32)) \
+                goto rtattr_failure; \
+        *(u32 *) RTA_DATA(rta); })
+
+#define RTA_GET_U64(rta) \
+({      u64 _tmp; \
+        if (!rta || RTA_PAYLOAD(rta) < sizeof(u64)) \
+                goto rtattr_failure; \
+        memcpy(&_tmp, RTA_DATA(rta), sizeof(_tmp)); \
+        _tmp; })
+
+#define RTA_GET_SECS(rta) ((unsigned long) RTA_GET_U64(rta) * HZ)
+#define RTA_GET_MSECS(rta) (msecs_to_jiffies((unsigned long) RTA_GET_U64(rta)))
                 
 static inline struct rtattr *
 __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen)