/*-
* Copyright (c) 2011-2019 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This material is based upon work partially supported by The
* NetBSD Foundation under a contract with Mindaugas Rasiukevicius.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _NPF_LIB_H_
#define _NPF_LIB_H_
#include <sys/types.h>
#include <net/npf.h>
__BEGIN_DECLS
struct nl_config;
struct nl_rule;
struct nl_rproc;
struct nl_table;
struct nl_ext;
typedef struct nl_config nl_config_t;
typedef struct nl_rule nl_rule_t;
typedef struct nl_rproc nl_rproc_t;
typedef struct nl_table nl_table_t;
typedef struct nl_rule nl_nat_t;
typedef struct nl_ext nl_ext_t;
/*
* Iterator.
*/
#define NPF_ITER_BEGIN 0
typedef signed long nl_iter_t;
/*
* Ruleset prefix(es).
*/
#define NPF_RULESET_MAP_PREF "map:"
/*
* Extensions API types.
*/
typedef int (*npfext_initfunc_t)(void);
typedef nl_ext_t *(*npfext_consfunc_t)(const char *);
typedef int (*npfext_paramfunc_t)(nl_ext_t *, const char *, const char *);
typedef int (*npf_conn_func_t)(unsigned, const npf_addr_t *,
const in_port_t *, const char *, void *);
/*
* API functions.
*/
nl_config_t * npf_config_create(void);
void npf_config_destroy(nl_config_t *);
int npf_config_submit(nl_config_t *, int, npf_error_t *);
nl_config_t * npf_config_retrieve(int);
int npf_config_flush(int);
nl_config_t * npf_config_import(const void *, size_t);
void * npf_config_export(nl_config_t *, size_t *);
bool npf_config_active_p(nl_config_t *);
bool npf_config_loaded_p(nl_config_t *);
const void * npf_config_build(nl_config_t *);
int npf_alg_load(nl_config_t *, const char *);
int npf_param_get(nl_config_t *, const char *, int *);
int npf_param_set(nl_config_t *, const char *, int);
const char * npf_param_iterate(nl_config_t *, nl_iter_t *, int *, int *);
int npf_ruleset_add(int, const char *, nl_rule_t *, uint64_t *);
int npf_ruleset_remove(int, const char *, uint64_t);
int npf_ruleset_remkey(int, const char *, const void *, size_t);
int npf_ruleset_flush(int, const char *);
nl_ext_t * npf_ext_construct(const char *);
void npf_ext_param_u32(nl_ext_t *, const char *, uint32_t);
void npf_ext_param_bool(nl_ext_t *, const char *, bool);
void npf_ext_param_string(nl_ext_t *, const char *, const char *);
nl_rule_t * npf_rule_create(const char *, uint32_t, const char *);
int npf_rule_setcode(nl_rule_t *, int, const void *, size_t);
int npf_rule_setprio(nl_rule_t *, int);
int npf_rule_setproc(nl_rule_t *, const char *);
int npf_rule_setkey(nl_rule_t *, const void *, size_t);
int npf_rule_setinfo(nl_rule_t *, const void *, size_t);
const char * npf_rule_getname(nl_rule_t *);
uint32_t npf_rule_getattr(nl_rule_t *);
const char * npf_rule_getinterface(nl_rule_t *);
const void * npf_rule_getinfo(nl_rule_t *, size_t *);
const char * npf_rule_getproc(nl_rule_t *);
uint64_t npf_rule_getid(nl_rule_t *);
const void * npf_rule_getcode(nl_rule_t *, int *, size_t *);
bool npf_rule_exists_p(nl_config_t *, const char *);
int npf_rule_insert(nl_config_t *, nl_rule_t *, nl_rule_t *);
void * npf_rule_export(nl_rule_t *, size_t *);
void npf_rule_destroy(nl_rule_t *);
nl_rproc_t * npf_rproc_create(const char *);
int npf_rproc_extcall(nl_rproc_t *, nl_ext_t *);
bool npf_rproc_exists_p(nl_config_t *, const char *);
int npf_rproc_insert(nl_config_t *, nl_rproc_t *);
const char * npf_rproc_getname(nl_rproc_t *);
nl_nat_t * npf_nat_create(int, unsigned, const char *);
int npf_nat_setaddr(nl_nat_t *, int, npf_addr_t *, npf_netmask_t);
int npf_nat_setport(nl_nat_t *, in_port_t);
int npf_nat_settable(nl_nat_t *, unsigned);
int npf_nat_settablefilter(nl_nat_t *, int, npf_addr_t *, npf_netmask_t);
int npf_nat_setalgo(nl_nat_t *, unsigned);
int npf_nat_setnpt66(nl_nat_t *, uint16_t);
int npf_nat_gettype(nl_nat_t *);
unsigned npf_nat_getflags(nl_nat_t *);
const npf_addr_t *npf_nat_getaddr(nl_nat_t *, size_t *, npf_netmask_t *);
in_port_t npf_nat_getport(nl_nat_t *);
unsigned npf_nat_gettable(nl_nat_t *);
unsigned npf_nat_getalgo(nl_nat_t *);
int npf_nat_insert(nl_config_t *, nl_nat_t *);
int npf_nat_lookup(int, int, npf_addr_t *[2], in_port_t [2], int, int);
int npf_conn_list(int, npf_conn_func_t, void *);
nl_table_t * npf_table_create(const char *, unsigned, int);
const char * npf_table_getname(nl_table_t *);
unsigned npf_table_getid(nl_table_t *);
int npf_table_gettype(nl_table_t *);
int npf_table_add_entry(nl_table_t *, int,
const npf_addr_t *, const npf_netmask_t);
int npf_table_insert(nl_config_t *, nl_table_t *);
void npf_table_destroy(nl_table_t *);
int npf_table_replace(int, nl_table_t *, npf_error_t *);
#ifdef _NPF_PRIVATE
#include <ifaddrs.h>
nl_rule_t * npf_rule_iterate(nl_config_t *, nl_iter_t *, unsigned *);
nl_nat_t * npf_nat_iterate(nl_config_t *, nl_iter_t *);
nl_rproc_t * npf_rproc_iterate(nl_config_t *, nl_iter_t *);
nl_table_t * npf_table_iterate(nl_config_t *, nl_iter_t *);
int _npf_ruleset_list(int, const char *, nl_config_t *);
void _npf_debug_addif(nl_config_t *, const char *);
void _npf_config_dump(nl_config_t *, int);
#endif
__END_DECLS
#endif /* _NPF_LIB_H_ */