parser_bison: restore parsing of dynamic set element updates

Add a new set_elem_expr_stmt production to handle dynamic set element
updates from rules.

Quickly tested this here through:

 # nft add table filter
 # nft add chain filter input { type filter hook input priority 0\; }
 # nft add set filter myset { type inet_service\; flags timeout\; }
 # nft add rule filter input set add tcp sport timeout 60s @myset
 # nft list ruleset
 table ip filter {
        set myset {
                type inet_service
                flags timeout
                elements = { http expires 9s}
        }

        chain input {
                type filter hook input priority 0; policy accept;
                set add tcp dport timeout 1m @myset
        }
 }

Fixes: a3e60492a684 ("parser: restrict relational rhs expression recursion")
Reported-by: Anders K. Pedersen <akp@akp.dk>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

0 files changed, 0 insertions, 0 deletions