tests: Add test for flush command selectiveness on sets

This tests the selectiveness of flush command on structures that use the
generic set infrastructure (sets, maps and flow tables).

Signed-off-by: Elise Lennion <elise.lennion@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/tests/shell/testcases/sets/0022type_selective_flush_0 b/tests/shell/testcases/sets/0022type_selective_flush_0
new file mode 100755 (executable)
index 0000000..f8878f7
--- /dev/null
+++ b/tests/shell/testcases/sets/0022type_selective_flush_0
@@ -0,0 +1,41 @@
+#!/bin/bash
+
+# This tests the selectiveness of flush command on structures that use the
+# generic set infrastructure (sets, maps and flow tables).
+
+tmpfile=$(mktemp)
+if [ ! -w $tmpfile ] ; then
+       echo "Failed to create tmp file" >&2
+       exit 0
+fi
+
+trap "rm -rf $tmpfile" EXIT # cleanup if aborted
+
+echo "
+add table t
+add chain t c
+add set t s {type ipv4_addr;}
+add map t m {type ipv4_addr : inet_service;}
+add rule t c tcp dport 80 flow table f {ip saddr limit rate 10/second}
+" >$tmpfile
+
+$NFT -f $tmpfile
+
+# Commands that should be invalid
+
+declare -a cmds=(
+               "flush set t m" "flush set t f"
+               "flush map t s" "flush map t f"
+               "flush flow table t s" "flush flow table t m"
+               )
+
+for i in "${cmds[@]}"
+do
+       echo "$i" >$tmpfile
+       $NFT -f $tmpfile &>/dev/null
+       ret=$?
+
+       if [ $ret -eq 0 ]; then
+               exit 1
+       fi
+done