datatype: fix crash when using basetype instead of symbolic constants

The following example:

 # nft add rule filter input ct state 8 accept
 Segmentation fault

leads to a crash because we have the following datatype relation:

 ct_state -> bitmask -> integer

The bitmask, which is an intermediate basetype, has no parse()
function, this leads to a crash in symbolic_constant_parse().

Patrick suggested to walk down the chain until we find a parser
function.

Reported-by: leroy christophe <christophe.leroy@c-s.fr>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

0 files changed, 0 insertions, 0 deletions