From 263ba61d3b19508dfb003c215ec5d23f882b4f87 Mon Sep 17 00:00:00 2001 From: Pravin B Shelar Date: Thu, 10 Nov 2011 19:14:37 -0800 Subject: [PATCH] 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: Pravin B Shelar Signed-off-by: Jesse Gross --- include/net/genetlink.h | 2 ++ net/netlink/genetlink.c | 13 +++++++++++++ 2 files changed, 15 insertions(+) diff --git a/include/net/genetlink.h b/include/net/genetlink.h index 82d8d09faa44..7db32995ccd3 100644 --- a/include/net/genetlink.h +++ b/include/net/genetlink.h @@ -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 diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index 482fa571b4ee..8a36599d3555 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -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);