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| author | Thomas Graf <tgraf@suug.ch> | 2006-08-15 00:31:41 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-22 14:54:50 -0700 |
| commit | 97676b6b5538b3e059d33b8338e7d5cc41c5f1f1 (patch) | |
| tree | 76e41eb58bd86a96e204dacbb6746da387e67452 /net/core | |
| parent | d387f6ad10764fc2174373b4a1cca443adee36e3 (diff) | |
| download | lwn-97676b6b5538b3e059d33b8338e7d5cc41c5f1f1.tar.gz lwn-97676b6b5538b3e059d33b8338e7d5cc41c5f1f1.zip | |
[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.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index e02fa6a33f42..2b1af17e6389 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); |