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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 /include/net/netlink.h | |
| parent | d387f6ad10764fc2174373b4a1cca443adee36e3 (diff) | |
| download | linux-97676b6b5538b3e059d33b8338e7d5cc41c5f1f1.tar.gz linux-97676b6b5538b3e059d33b8338e7d5cc41c5f1f1.tar.bz2 linux-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 'include/net/netlink.h')
| -rw-r--r-- | include/net/netlink.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/net/netlink.h b/include/net/netlink.h index b154b81d9a7a..bf593eb59e1b 100644 --- a/include/net/netlink.h +++ b/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); @@ -376,6 +382,17 @@ static inline int nlmsg_validate(struct nlmsghdr *nlh, int hdrlen, int maxtype, } /** + * 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 * @nlh: netlink message header |