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authorThomas Graf <tgraf@suug.ch>2005-06-18 22:53:48 -0700
committerDavid S. Miller <davem@davemloft.net>2005-06-18 22:53:48 -0700
commit1797754ea7ee5e0d859b0a32506ff999f8d5fb71 (patch)
treea35d05f9106d903412a6fff714be38427fc4d0fa /include/linux/netlink.h
parentaf0d114176720c2100dfa624ab433796d333d730 (diff)
[NETLINK]: Introduce NLMSG_NEW macro to better handle netlink flags
Introduces a new macro NLMSG_NEW which extends NLMSG_PUT but takes a flags argument. NLMSG_PUT stays there for compatibility but now calls NLMSG_NEW with flags == 0. NLMSG_PUT_ANSWER is renamed to NLMSG_NEW_ANSWER which now also takes a flags argument. Also converts the users of NLMSG_PUT_ANSWER to use NLMSG_NEW_ANSWER and fixes the two direct users of __nlmsg_put to either provide the flags or use NLMSG_NEW(_ANSWER). Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netlink.h')
-rw-r--r--include/linux/netlink.h17
1 files changed, 10 insertions, 7 deletions
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 8d1cb419a93..e38407a23d0 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -156,7 +156,7 @@ struct netlink_notify
};
static __inline__ struct nlmsghdr *
-__nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len)
+__nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len, int flags)
{
struct nlmsghdr *nlh;
int size = NLMSG_LENGTH(len);
@@ -164,20 +164,23 @@ __nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len)
nlh = (struct nlmsghdr*)skb_put(skb, NLMSG_ALIGN(size));
nlh->nlmsg_type = type;
nlh->nlmsg_len = size;
- nlh->nlmsg_flags = 0;
+ nlh->nlmsg_flags = flags;
nlh->nlmsg_pid = pid;
nlh->nlmsg_seq = seq;
return nlh;
}
-#define NLMSG_PUT(skb, pid, seq, type, len) \
+#define NLMSG_NEW(skb, pid, seq, type, len, flags) \
({ if (skb_tailroom(skb) < (int)NLMSG_SPACE(len)) \
goto nlmsg_failure; \
- __nlmsg_put(skb, pid, seq, type, len); })
+ __nlmsg_put(skb, pid, seq, type, len, flags); })
+
+#define NLMSG_PUT(skb, pid, seq, type, len) \
+ NLMSG_NEW(skb, pid, seq, type, len, 0)
-#define NLMSG_PUT_ANSWER(skb, cb, type, len) \
- NLMSG_PUT(skb, NETLINK_CB((cb)->skb).pid, \
- (cb)->nlh->nlmsg_seq, type, len)
+#define NLMSG_NEW_ANSWER(skb, cb, type, len, flags) \
+ NLMSG_NEW(skb, NETLINK_CB((cb)->skb).pid, \
+ (cb)->nlh->nlmsg_seq, type, len, flags)
#define NLMSG_END(skb, nlh) \
({ (nlh)->nlmsg_len = (skb)->tail - (unsigned char *) (nlh); \