138 lines
4.6 KiB
C
138 lines
4.6 KiB
C
/* $NetBSD: npf.h,v 1.11 2012/09/16 13:47:42 rmind Exp $ */
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/*-
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* Copyright (c) 2011-2012 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This material is based upon work partially supported by The
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* NetBSD Foundation under a contract with Mindaugas Rasiukevicius.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _NPF_LIB_H_
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#define _NPF_LIB_H_
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#include <sys/types.h>
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#include <net/npf.h>
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__BEGIN_DECLS
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struct nl_config;
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struct nl_rule;
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struct nl_rproc;
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struct nl_table;
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typedef struct nl_config nl_config_t;
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typedef struct nl_rule nl_rule_t;
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typedef struct nl_rproc nl_rproc_t;
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typedef struct nl_table nl_table_t;
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typedef struct nl_rule nl_nat_t;
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typedef struct nl_ext nl_ext_t;
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typedef int (*npfext_initfunc_t)(void);
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typedef nl_ext_t *(*npfext_consfunc_t)(const char *);
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typedef int (*npfext_paramfunc_t)(nl_ext_t *, const char *, const char *);
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#ifdef _NPF_PRIVATE
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typedef struct {
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int ne_id;
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char * ne_source_file;
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u_int ne_source_line;
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int ne_ncode_error;
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int ne_ncode_errat;
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} nl_error_t;
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typedef void (*nl_rule_callback_t)(nl_rule_t *, unsigned);
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typedef void (*nl_table_callback_t)(unsigned, int);
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#endif
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#define NPF_CODE_NCODE 1
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#define NPF_CODE_BPF 2
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#define NPF_PRI_NEXT (-1)
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#define NPF_MAX_TABLE_ID (16)
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nl_config_t * npf_config_create(void);
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int npf_config_submit(nl_config_t *, int);
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void npf_config_destroy(nl_config_t *);
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nl_config_t * npf_config_retrieve(int, bool *, bool *);
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int npf_config_flush(int);
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nl_ext_t * npf_ext_construct(const char *name);
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void npf_ext_param_u32(nl_ext_t *, const char *, uint32_t);
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void npf_ext_param_bool(nl_ext_t *, const char *, bool);
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nl_rule_t * npf_rule_create(const char *, uint32_t, u_int);
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int npf_rule_setcode(nl_rule_t *, int, const void *, size_t);
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int npf_rule_setproc(nl_config_t *, nl_rule_t *, const char *);
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bool npf_rule_exists_p(nl_config_t *, const char *);
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int npf_rule_insert(nl_config_t *, nl_rule_t *, nl_rule_t *, pri_t);
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void npf_rule_destroy(nl_rule_t *);
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nl_rproc_t * npf_rproc_create(const char *);
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int npf_rproc_extcall(nl_rproc_t *, nl_ext_t *);
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bool npf_rproc_exists_p(nl_config_t *, const char *);
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int npf_rproc_insert(nl_config_t *, nl_rproc_t *);
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nl_nat_t * npf_nat_create(int, u_int, u_int, npf_addr_t *, int, in_port_t);
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int npf_nat_insert(nl_config_t *, nl_nat_t *, pri_t);
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nl_table_t * npf_table_create(u_int, int);
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int npf_table_add_entry(nl_table_t *, const int,
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const npf_addr_t *, const npf_netmask_t);
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bool npf_table_exists_p(nl_config_t *, u_int);
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int npf_table_insert(nl_config_t *, nl_table_t *);
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void npf_table_destroy(nl_table_t *);
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int npf_update_rule(int, const char *, nl_rule_t *);
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int npf_sessions_send(int, const char *);
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int npf_sessions_recv(int, const char *);
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#ifdef _NPF_PRIVATE
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#include <ifaddrs.h>
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void _npf_config_error(nl_config_t *, nl_error_t *);
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void _npf_config_setsubmit(nl_config_t *, const char *);
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int _npf_rule_foreach(nl_config_t *, nl_rule_callback_t);
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pri_t _npf_rule_getinfo(nl_rule_t *, const char **, uint32_t *,
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u_int *);
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const void * _npf_rule_ncode(nl_rule_t *, size_t *);
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const char * _npf_rule_rproc(nl_rule_t *);
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int _npf_nat_foreach(nl_config_t *, nl_rule_callback_t);
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void _npf_nat_getinfo(nl_nat_t *, int *, u_int *, npf_addr_t *,
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size_t *, in_port_t *);
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void _npf_table_foreach(nl_config_t *, nl_table_callback_t);
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void _npf_debug_addif(nl_config_t *, struct ifaddrs *, u_int);
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#endif
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__END_DECLS
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#endif /* _NPF_LIB_H_ */
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