If I run my automatic unit test of libnftable, It shows: "ERROR: Expr NFT_EXPR_LOG_PREFIX mismatches" a: test b: test The problem was in nft_rule_expr_log_build function. With the attached patch, we use "mnl_attr_put_strz" in instead of "mnl_attr_put_str". --- src/expr/log.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/expr/log.c b/src/expr/log.c index 495c1bd..76657a9 100644 --- a/src/expr/log.c +++ b/src/expr/log.c @@ -119,7 +119,7 @@ nft_rule_expr_log_build(struct nlmsghdr *nlh, struct nft_rule_expr *e) struct nft_expr_log *log = nft_expr_data(e); if (e->flags & (1 << NFT_EXPR_LOG_PREFIX)) - mnl_attr_put_str(nlh, NFTA_LOG_PREFIX, log->prefix); + mnl_attr_put_strz(nlh, NFTA_LOG_PREFIX, log->prefix); if (e->flags & (1 << NFT_EXPR_LOG_GROUP)) mnl_attr_put_u16(nlh, NFTA_LOG_GROUP, htons(log->group)); if (e->flags & (1 << NFT_EXPR_LOG_SNAPLEN)) -- 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