---

yaml --- r: 34485 b: refs/heads/master c: 97676b6 h: refs/heads/master i: 34483: 94cdf0d v: v3
git-mirror · Sep 22, 2006 · 42bf156 · 42bf156
1 parent 395d141
commit 42bf156
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Showing 4 changed files with 39 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d387f6ad10764fc2174373b4a1cca443adee36e3
+refs/heads/master: 97676b6b5538b3e059d33b8338e7d5cc41c5f1f1
diff --git a/trunk/include/linux/rtnetlink.h b/trunk/include/linux/rtnetlink.h
@@ -585,6 +585,9 @@ struct rtnetlink_link
 extern struct rtnetlink_link * rtnetlink_links[NPROTO];
 extern int rtnetlink_send(struct sk_buff *skb, u32 pid, u32 group, int echo);
 extern int rtnl_unicast(struct sk_buff *skb, u32 pid);
+extern int rtnl_notify(struct sk_buff *skb, u32 pid, u32 group,
+		       struct nlmsghdr *nlh, gfp_t flags);
+extern void rtnl_set_sk_err(u32 group, int error);
 extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics);
 
 extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data);

diff --git a/trunk/include/net/netlink.h b/trunk/include/net/netlink.h
@@ -65,6 +65,9 @@
  *   nlmsg_validate()			validate netlink message incl. attrs
  *   nlmsg_for_each_attr()		loop over all attributes
  *
+ * Misc:
+ *   nlmsg_report()			report back to application?
+ *
  * ------------------------------------------------------------------------
  *                          Attributes Interface
  * ------------------------------------------------------------------------
@@ -194,6 +197,9 @@ extern void		netlink_run_queue(struct sock *sk, unsigned int *qlen,
 						    struct nlmsghdr *, int *));
 extern void		netlink_queue_skip(struct nlmsghdr *nlh,
 					   struct sk_buff *skb);
+extern int		nlmsg_notify(struct sock *sk, struct sk_buff *skb,
+				     u32 pid, unsigned int group, int report,
+				     gfp_t flags);
 
 extern int		nla_validate(struct nlattr *head, int len, int maxtype,
 				     struct nla_policy *policy);
@@ -375,6 +381,17 @@ static inline int nlmsg_validate(struct nlmsghdr *nlh, int hdrlen, int maxtype,
 			    nlmsg_attrlen(nlh, hdrlen), maxtype, policy);
 }
 
+/**
+ * nlmsg_report - need to report back to application?
+ * @nlh: netlink message header
+ *
+ * Returns 1 if a report back to the application is requested.
+ */
+static inline int nlmsg_report(struct nlmsghdr *nlh)
+{
+	return !!(nlh->nlmsg_flags & NLM_F_ECHO);
+}
+
 /**
  * nlmsg_for_each_attr - iterate over a stream of attributes
  * @pos: loop counter, set to current attribute

diff --git a/trunk/net/core/rtnetlink.c b/trunk/net/core/rtnetlink.c
@@ -171,6 +171,22 @@ int rtnl_unicast(struct sk_buff *skb, u32 pid)
 	return nlmsg_unicast(rtnl, skb, pid);
 }
 
+int rtnl_notify(struct sk_buff *skb, u32 pid, u32 group,
+		struct nlmsghdr *nlh, gfp_t flags)
+{
+	int report = 0;
+
+	if (nlh)
+		report = nlmsg_report(nlh);
+
+	return nlmsg_notify(rtnl, skb, pid, group, report, flags);
+}
+
+void rtnl_set_sk_err(u32 group, int error)
+{
+	netlink_set_err(rtnl, 0, group, error);
+}
+
 int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics)
 {
 	struct rtattr *mx = (struct rtattr*)skb->tail;
@@ -829,3 +845,5 @@ EXPORT_SYMBOL(rtnl_lock);
 EXPORT_SYMBOL(rtnl_trylock);
 EXPORT_SYMBOL(rtnl_unlock);
 EXPORT_SYMBOL(rtnl_unicast);
+EXPORT_SYMBOL(rtnl_notify);
+EXPORT_SYMBOL(rtnl_set_sk_err);