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authorThomas Graf <tgraf@suug.ch>2006-08-15 00:31:41 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-09-22 14:54:50 -0700
commit97676b6b5538b3e059d33b8338e7d5cc41c5f1f1 (patch)
tree76e41eb58bd86a96e204dacbb6746da387e67452 /net/core
parentd387f6ad10764fc2174373b4a1cca443adee36e3 (diff)
[RTNETLINK]: Add rtnetlink notification interface
Adds rtnl_notify() to send rtnetlink notification messages and rtnl_set_sk_err() to report notification errors as socket errors in order to indicate the need of a resync due to loss of events. nlmsg_report() is added to properly document the meaning of NLM_F_ECHO. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/rtnetlink.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index e02fa6a33f4..2b1af17e638 100644
--- a/net/core/rtnetlink.c
+++ b/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);