ovs-brcompatd: Run ovs-vsctl instead of accessing database directly.

[openvswitch] / datapath / linux-2.6 / compat-2.6 / genetlink.inc

diff --git a/datapath/linux-2.6/compat-2.6/genetlink.inc b/datapath/linux-2.6/compat-2.6/genetlink.inc
index 63760bbb9c7567afc4f8a471e9fc8842f7734844..d381e4f0c56670cb8824f5a2d568d98ca2715395 100644 (file)
--- a/datapath/linux-2.6/compat-2.6/genetlink.inc
+++ b/datapath/linux-2.6/compat-2.6/genetlink.inc
@@ -71,3 +71,69 @@ err_out:
        return err;
 }
 #endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+/**
+ * nlmsg_notify - send a notification netlink message
+ * @sk: netlink socket to use
+ * @skb: notification message
+ * @pid: destination netlink pid for reports or 0
+ * @group: destination multicast group or 0
+ * @report: 1 to report back, 0 to disable
+ * @flags: allocation flags
+ */
+int nlmsg_notify(struct sock *sk, struct sk_buff *skb, u32 pid,
+                unsigned int group, int report, gfp_t flags)
+{
+       int err = 0;
+
+       if (group) {
+               int exclude_pid = 0;
+
+               if (report) {
+                       atomic_inc(&skb->users);
+                       exclude_pid = pid;
+               }
+
+               /* errors reported via destination sk->sk_err, but propagate
+                * delivery errors if NETLINK_BROADCAST_ERROR flag is set */
+               err = nlmsg_multicast(sk, skb, exclude_pid, group, flags);
+       }
+
+       if (report) {
+               int err2;
+
+               err2 = nlmsg_unicast(sk, skb, pid);
+               if (!err || err == -ESRCH)
+                       err = err2;
+       }
+
+       return err;
+}
+#endif
+
+/* This is analogous to rtnl_notify() but uses genl_sock instead of rtnl.
+ *
+ * This is not (yet) in any upstream kernel. */
+void genl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
+                struct nlmsghdr *nlh, gfp_t flags)
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
+       struct sock *sk = net->genl_sock;
+#else
+       struct sock *sk = genl_sock;
+#endif
+       int report = 0;
+
+       if (nlh)
+               report = nlmsg_report(nlh);
+
+       nlmsg_notify(sk, skb, pid, group, report, flags);
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)
+/* This function wasn't exported before 2.6.30.  Lose! */
+void netlink_set_err(struct sock *ssk, u32 pid, u32 group, int code)
+{
+}
+#endif