intervals: fix element deletions with maps

Set element deletion in maps (including catchall elements) does not work.

 # nft delete element ip x m { \* }
 BUG: invalid range expression type catch-all set element
 nft: src/expression.c:1472: range_expr_value_low: Assertion `0' failed.
 Aborted

Call interval_expr_key() to fetch expr->left in the mapping but use the
expression that represents the mapping because it provides access to the
EXPR_F_REMOVE flags.

Moreover, assume maximum value for catchall expression by means of the
expr->len to reuse the existing code to check if the element to be
deleted really exists.

Fixes: 3e8d934e4f72 ("intervals: support to partial deletion with automerge")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

0 files changed, 0 insertions, 0 deletions