From c454673da7c1d6533f40ec2f788023df9af56ebf Mon Sep 17 00:00:00 2001 From: Thomas Graf Date: Sun, 25 Mar 2007 23:24:24 -0700 Subject: [NET] rules: Unified rules dumping Implements a unified, protocol independant rules dumping function which is capable of both, dumping a specific protocol family or all of them. This speeds up dumping as less lookups are required. Signed-off-by: Thomas Graf Signed-off-by: David S. Miller --- include/net/rtnetlink.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/net/rtnetlink.h') diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h index dce7072bd28..086fa9e8950 100644 --- a/include/net/rtnetlink.h +++ b/include/net/rtnetlink.h @@ -15,4 +15,12 @@ extern int rtnl_unregister(int protocol, int msgtype); extern void rtnl_unregister_all(int protocol); extern int rtnl_dump_all(struct sk_buff *skb, struct netlink_callback *cb); +static inline int rtnl_msg_family(struct nlmsghdr *nlh) +{ + if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg)) + return ((struct rtgenmsg *) nlmsg_data(nlh))->rtgen_family; + else + return AF_UNSPEC; +} + #endif -- cgit v1.2.3-18-g5258