netfilter: nf_tables: Eliminate duplicated code in nf_tables_table_enable()

If something fails in nf_tables_table_enable(), it unregisters the
chains. But the rollback code is the same as nf_tables_table_disable()
almostly, except there is one counter check.  Now create one wrapper
function to eliminate the duplicated codes.

Signed-off-by: Feng <fgao@ikuai8.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

path: root/dissector_netlink.c

/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2014 Tobias Klauser.
 * Subject to the GPL, version 2.
 */

#include "dissector.h"
#include "dissector_netlink.h"

static inline void dissector_init_entry(int type)
{
	dissector_set_print_type(dissector_get_netlink_entry_point(), type);
}

static inline void dissector_init_exit(int type)
{
	dissector_set_print_type(&none_ops, type);
}

void dissector_init_netlink(int fnttype)
{
	dissector_init_entry(fnttype);
	dissector_init_exit(fnttype);
}

void dissector_cleanup_netlink(void)
{
}