/*- * 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 #include __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 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_ */