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Commit 263ba61d authored by Pravin B Shelar's avatar Pravin B Shelar Committed by Jesse Gross
Browse files

genetlink: Add genl_notify() 



Open vSwitch uses Generic Netlink interface for communication
between userspace and kernel module. genl_notify() is used
for sending notification back to userspace.

genl_notify() is analogous to rtnl_notify() but uses genl_sock
instead of rtnl.

Signed-off-by: default avatarPravin B Shelar <pshelar@nicira.com>
Signed-off-by: default avatarJesse Gross <jesse@nicira.com>
parent 340e8dc1

include/net/genetlink.h

+2 −0
Original line number Diff line number Diff line
@@ -128,6 +128,8 @@ extern int genl_register_mc_group(struct genl_family *family, 
				  struct genl_multicast_group *grp);

extern void genl_unregister_mc_group(struct genl_family *family,

				     struct genl_multicast_group *grp);

extern void genl_notify(struct sk_buff *skb, struct net *net, u32 pid,

			u32 group, struct nlmsghdr *nlh, gfp_t flags);



/**

 * genlmsg_put - Add generic netlink header to netlink message

net/netlink/genetlink.c

+13 −0
Original line number Diff line number Diff line
@@ -946,3 +946,16 @@ int genlmsg_multicast_allns(struct sk_buff *skb, u32 pid, unsigned int group, 
	return genlmsg_mcast(skb, pid, group, flags);

}

EXPORT_SYMBOL(genlmsg_multicast_allns);



void genl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,

		 struct nlmsghdr *nlh, gfp_t flags)

{

	struct sock *sk = net->genl_sock;

	int report = 0;



	if (nlh)

		report = nlmsg_report(nlh);



	nlmsg_notify(sk, skb, pid, group, report, flags);

}

EXPORT_SYMBOL(genl_notify);