If I run my automatic unit test of libnftable, It shows: ERROR: Expr NFT_EXPR_TG_INFO size mismatches size a: 32 b: 36 The problem was in nft_rule_expr_target_parse function. With the attached patch, we use "mnl_attr_get_payload_len" in instead of "mnl_attr_get_len". --- src/expr/target.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/expr/target.c b/src/expr/target.c index 20bf2af..23dff3a 100644 --- a/src/expr/target.c +++ b/src/expr/target.c @@ -149,7 +149,7 @@ static int nft_rule_expr_target_parse(struct nft_rule_expr *e, struct nlattr *at } if (tb[NFTA_TARGET_INFO]) { - uint32_t len = mnl_attr_get_len(tb[NFTA_TARGET_INFO]); + uint32_t len = mnl_attr_get_payload_len(tb[NFTA_TARGET_INFO]); void *target_data; if (target->data) -- 1.8.4.rc3 -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html