src: assert when setting unknown attributes

If this attribute is not supported by the library, we should rise an
assertion so the client knows something is wrong, instead of silently
going through.

The only case I can think may hit this problem is version mismatch
between library and tools. This should not ever really happen, so better
bail out from the library itself in this case.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 3 deletions

diff --git a/src/gen.c b/src/gen.c
index 115a105..ea29e2a 100644
--- a/src/gen.c
+++ b/src/gen.c
@@ -67,9 +67,7 @@ static uint32_t nftnl_gen_validate[NFTNL_GEN_MAX + 1] = {
 void nftnl_gen_set_data(struct nftnl_gen *gen, uint16_t attr,
 			   const void *data, uint32_t data_len)
 {
-	if (attr > NFTNL_GEN_MAX)
-		return;
-
+	nftnl_assert_attr_exists(attr, NFTNL_GEN_MAX);
 	nftnl_assert_validate(data, nftnl_gen_validate, attr, data_len);
 
 	switch (attr) {