[NETLINK]: Clear padding in netlink messages

[linux-2.6] / include / linux / rtnetlink.h

diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index e68dbf0bf5791f1e0a4e08098fdbf2e9995195e1..dc26e82ba0fda4f9497822e881d02d173d99aa4b 100644 (file)
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -892,10 +892,15 @@ extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const voi
                 goto rtattr_failure; \
        __rta_fill(skb, attrtype, attrlen, data); }) 
 
-#define RTA_PUT_NOHDR(skb, attrlen, data) \
+#define RTA_APPEND(skb, attrlen, data) \
 ({     if (unlikely(skb_tailroom(skb) < (int)(attrlen))) \
                goto rtattr_failure; \
-       memcpy(skb_put(skb, RTA_ALIGN(attrlen)), data, attrlen); })
+       memcpy(skb_put(skb, attrlen), data, attrlen); })
+
+#define RTA_PUT_NOHDR(skb, attrlen, data) \
+({     RTA_APPEND(skb, RTA_ALIGN(attrlen), data); \
+       memset(skb->tail - (RTA_ALIGN(attrlen) - attrlen), 0, \
+              RTA_ALIGN(attrlen) - attrlen); })
 
 #define RTA_PUT_U8(skb, attrtype, value) \
 ({     u8 _tmp = (value); \
@@ -975,6 +980,7 @@ __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen)
        rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size));
        rta->rta_type = attrtype;
        rta->rta_len = size;
+       memset(RTA_DATA(rta) + attrlen, 0, RTA_ALIGN(size) - size);
        return rta;
 }