[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>
This commit is contained in:
Thomas Graf 2006-08-15 00:31:41 -07:00 committed by David S. Miller
commit 97676b6b55
3 changed files with 38 additions and 0 deletions

View file

@ -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);