X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=lib%2Fnetlink-socket.h;h=992528b2e3adc6987ef26b8eafa4eb2bda1b6e0b;hb=cc245ce87d3de9c2a66ee42719ab413e464fb2de;hp=93dc9c85411ad997f1e3aa1e226254e7fc2ba7ab;hpb=e214f75182f9e2b14f87d6a976739c38fc3d4c70;p=cascardo%2Fovs.git

diff --git a/lib/netlink-socket.h b/lib/netlink-socket.h
index 93dc9c854..992528b2e 100644
--- a/lib/netlink-socket.h
+++ b/lib/netlink-socket.h
@@ -151,6 +151,14 @@
  *
  *       nl_sock_recv() reads notifications sent this way.
  *
+ *       Specifically on Windows platform, the datapath needs to allocate a
+ *       queue for packets, and it does so only when userspace "subscribe"'s to
+ *       packets on that netlink socket.  Before closing the netlink socket,
+ *       userspace needs to "unsubscribe" packets on that netlink socket.
+ *
+ *       nl_sock_subscribe_packets() and nl_sock_unsubscribe_packets() are
+ *       Windows specific.
+ *
  *       Messages received this way can overflow, just like multicast
  *       subscription messages, and they are reported the same way.  Because
  *       packet notification messages do not report the state of a table, there
@@ -205,6 +213,11 @@ void nl_sock_destroy(struct nl_sock *);
 int nl_sock_join_mcgroup(struct nl_sock *, unsigned int multicast_group);
 int nl_sock_leave_mcgroup(struct nl_sock *, unsigned int multicast_group);
 
+#ifdef _WIN32
+int nl_sock_subscribe_packets(struct nl_sock *sock);
+int nl_sock_unsubscribe_packets(struct nl_sock *sock);
+#endif
+
 int nl_sock_send(struct nl_sock *, const struct ofpbuf *, bool wait);
 int nl_sock_send_seq(struct nl_sock *, const struct ofpbuf *,
                      uint32_t nlmsg_seq, bool wait);
@@ -213,7 +226,9 @@ int nl_sock_recv(struct nl_sock *, struct ofpbuf *, bool wait);
 int nl_sock_drain(struct nl_sock *);
 
 void nl_sock_wait(const struct nl_sock *, short int events);
+#ifndef _WIN32
 int nl_sock_fd(const struct nl_sock *);
+#endif
 
 uint32_t nl_sock_pid(const struct nl_sock *);