common: add batching interfaces

This patch adds the following new interfaces:

 int nft_batch_is_supported(void);
 void nft_batch_begin(char *buf, uint32_t seq);
 void nft_batch_end(char *buf, uint32_t seq);

Quite likely this is going to be reused by third party applications
requiring to put things in the batch. We already have potential clients
for this code in nft and iptables-compat.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/libnftnl.map b/src/libnftnl.map
index e8c634f..d8dcf8e 100644
--- a/src/libnftnl.map
+++ b/src/libnftnl.map
@@ -209,4 +209,7 @@ LIBNFTNL_1.1 {
 
 LIBNFTNL_1.2 {
   nft_set_elems_nlmsg_build_payload_iter;
+  nft_batch_is_supported;
+  nft_batch_begin;
+  nft_batch_end;
 } LIBNFTNL_1.1;