netlink_delinearize: consolidate range printing

This patch adds a routine to the postprocess stage to check if the previous
expression statement and the current actually represent a range, so we can
provide a more compact listing, eg.

 # nft -nn list table test
 table ip test {
        chain test {
                tcp dport 22
                tcp dport 22-23
                tcp dport != 22-23
                ct mark != 0x00000016-0x00000017
                ct mark 0x00000016-0x00000017
                mark 0x00000016-0x00000017
                mark != 0x00000016-0x00000017
        }
 }

To do so, the context state stores a pointer to the current statement. This
pointer needs to be invalidated in case the current statement is replaced.

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

0 files changed, 0 insertions, 0 deletions