Add support for table's persist flag

Bison parser lacked support for passing multiple flags, JSON parser
did not support table flags at all.

Document also 'owner' flag (and describe their relationship in nft.8.

Signed-off-by: Phil Sutter <phil@nwl.cc>

2 files changed, 39 insertions, 0 deletions

diff --git a/tests/shell/features/table_flag_persist.nft b/tests/shell/features/table_flag_persist.nft
new file mode 100644
index 00000000..0da3e6d4
--- /dev/null
+++ b/tests/shell/features/table_flag_persist.nft
@@ -0,0 +1,3 @@
+table t {
+	flags persist;
+}
diff --git a/tests/shell/testcases/owner/0002-persist b/tests/shell/testcases/owner/0002-persist
new file mode 100755
index 00000000..cf4b8f13
--- /dev/null
+++ b/tests/shell/testcases/owner/0002-persist
@@ -0,0 +1,36 @@
+#!/bin/bash
+
+# NFT_TEST_REQUIRES(NFT_TEST_HAVE_table_flag_owner)
+# NFT_TEST_REQUIRES(NFT_TEST_HAVE_table_flag_persist)
+
+die() {
+	echo "$@"
+	exit 1
+}
+
+$NFT -f - <<EOF
+table ip t {
+	flags owner, persist
+}
+EOF
+[[ $? -eq 0 ]] || {
+	die "table add failed"
+}
+
+$NFT list ruleset | grep -q 'table ip t' || {
+	die "table does not persist"
+}
+$NFT list ruleset | grep -q 'flags persist$' || {
+	die "unexpected flags in orphaned table"
+}
+
+$NFT -f - <<EOF
+table ip t {
+	flags owner, persist
+}
+EOF
+[[ $? -eq 0 ]] || {
+	die "retake ownership failed"
+}
+
+exit 0