src: add 'list maps' support

This commit adds a new command that lists maps:

  # nft list maps [family]

Only the declaration is displayed. If no family is specified, all maps
of all families are listed.

Example:

  # nft list maps

  table ip filter {
          map test {
                  type ipv4_addr : inet_service
          }
  }
  table ip6 filter {
          map test {
                  type ipv6_addr : inet_service
          }
  }

Signed-off-by: Pablo M. Bermudo Garay <pablombg@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/rule.h b/include/rule.h
index 7e8daac9..d96f4747 100644
--- a/include/rule.h
+++ b/include/rule.h
@@ -318,6 +318,7 @@ enum cmd_obj {
 	CMD_OBJ_EXPORT,
 	CMD_OBJ_FLOWTABLE,
 	CMD_OBJ_FLOWTABLES,
+	CMD_OBJ_MAPS,
 };
 
 struct export {