evaluate: infer family from mapping

If the key in the nat mapping is either ip or ip6, then set the nat
family accordingly, no need for explicit family in the nat statement.

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

1 files changed, 14 insertions, 0 deletions

diff --git a/tests/shell/testcases/sets/0047nat_0 b/tests/shell/testcases/sets/0047nat_0
index cb1d4d68..d19f5b69 100755
--- a/tests/shell/testcases/sets/0047nat_0
+++ b/tests/shell/testcases/sets/0047nat_0
@@ -18,3 +18,17 @@ EXPECTED="table ip x {
 set -e
 $NFT -f - <<< $EXPECTED
 $NFT add element x y { 10.141.12.0/24 : 192.168.5.10-192.168.5.20 }
+
+EXPECTED="table inet x {
+            chain x {
+                    type nat hook prerouting priority dstnat; policy accept;
+                    dnat to ip daddr . tcp dport map { 10.141.10.1 . 22 : 192.168.2.2, 10.141.11.2 . 2222 : 192.168.4.2 }
+            }
+
+            chain y {
+                    type nat hook postrouting priority srcnat; policy accept;
+                    snat to ip saddr map { 10.141.10.0/24 : 192.168.2.2-192.168.2.4, 10.141.11.0/24 : 192.168.4.2-192.168.4.3 }
+            }
+}"
+
+$NFT -f - <<< $EXPECTED