json: add flow statement json export + parser

flow statement has no export, its shown as:
".. }, "flow add @ft" ] } }"

With this patch:

".. }, {"flow": {"op": "add", "flowtable": "@ft"}}]}}"

Signed-off-by: Florian Westphal <fw@strlen.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/json.h b/include/json.h
index 3db9f278..a753f359 100644
--- a/include/json.h
+++ b/include/json.h
@@ -69,6 +69,7 @@ json_t *uid_type_json(const struct expr *expr, struct output_ctx *octx);
 json_t *gid_type_json(const struct expr *expr, struct output_ctx *octx);
 
 json_t *expr_stmt_json(const struct stmt *stmt, struct output_ctx *octx);
+json_t *flow_offload_stmt_json(const struct stmt *stmt, struct output_ctx *octx);
 json_t *payload_stmt_json(const struct stmt *stmt, struct output_ctx *octx);
 json_t *exthdr_stmt_json(const struct stmt *stmt, struct output_ctx *octx);
 json_t *quota_stmt_json(const struct stmt *stmt, struct output_ctx *octx);
@@ -169,6 +170,7 @@ EXPR_PRINT_STUB(uid_type)
 EXPR_PRINT_STUB(gid_type)
 
 STMT_PRINT_STUB(expr)
+STMT_PRINT_STUB(flow_offload)
 STMT_PRINT_STUB(payload)
 STMT_PRINT_STUB(exthdr)
 STMT_PRINT_STUB(quota)