src: add events reporting

This patch adds a basic events reporting option to nft.

The syntax is:
 % nft monitor [new|destroy] [tables|chains|rules|sets|elements] [xml|json]

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/mnl.c b/src/mnl.c
index e825fb06..d19b5213 100644
--- a/src/mnl.c
+++ b/src/mnl.c
@@ -805,3 +805,13 @@ out:
 	nft_ruleset_free(rs);
 	return NULL;
 }
+
+/*
+ * events
+ */
+int mnl_nft_event_listener(struct mnl_socket *nf_sock,
+			   int (*cb)(const struct nlmsghdr *nlh, void *data),
+			   void *cb_data)
+{
+	return nft_mnl_recv(nf_sock, 0, 0, cb, cb_data);
+}