1 /* $NetBSD: npf.h,v 1.5 2012/01/15 00:49:47 rmind Exp $ */ 2 3 /*- 4 * Copyright (c) 2011 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This material is based upon work partially supported by The 8 * NetBSD Foundation under a contract with Mindaugas Rasiukevicius. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _NPF_LIB_H_ 33 #define _NPF_LIB_H_ 34 35 #include <sys/types.h> 36 #include <net/npf.h> 37 38 #ifdef _NPF_TESTING 39 #include "testing.h" 40 #endif 41 42 __BEGIN_DECLS 43 44 struct nl_config; 45 struct nl_rule; 46 struct nl_rproc; 47 struct nl_table; 48 49 typedef struct nl_config nl_config_t; 50 typedef struct nl_rule nl_rule_t; 51 typedef struct nl_rproc nl_rproc_t; 52 typedef struct nl_table nl_table_t; 53 54 typedef struct nl_rule nl_nat_t; 55 56 #define NPF_CODE_NCODE 1 57 #define NPF_CODE_BPF 2 58 59 #define NPF_PRI_NEXT (-1) 60 61 #define NPF_MAX_TABLE_ID (16) 62 63 nl_config_t * npf_config_create(void); 64 int npf_config_submit(nl_config_t *, int); 65 void npf_config_destroy(nl_config_t *); 66 int npf_config_flush(int); 67 #ifdef _NPF_PRIVATE 68 void _npf_config_setsubmit(nl_config_t *, const char *); 69 #endif 70 71 nl_rule_t * npf_rule_create(const char *, uint32_t, u_int); 72 int npf_rule_setcode(nl_rule_t *, int, const void *, size_t); 73 int npf_rule_setproc(nl_config_t *, nl_rule_t *, const char *); 74 bool npf_rule_exists_p(nl_config_t *, const char *); 75 int npf_rule_insert(nl_config_t *, nl_rule_t *, nl_rule_t *, pri_t); 76 void npf_rule_destroy(nl_rule_t *); 77 78 nl_rproc_t * npf_rproc_create(const char *); 79 bool npf_rproc_exists_p(nl_config_t *, const char *); 80 int npf_rproc_insert(nl_config_t *, nl_rproc_t *); 81 82 #ifdef _NPF_PRIVATE 83 int _npf_rproc_setnorm(nl_rproc_t *, bool, bool, u_int, u_int); 84 int _npf_rproc_setlog(nl_rproc_t *, u_int); 85 #endif 86 87 nl_nat_t * npf_nat_create(int, u_int, u_int, npf_addr_t *, int, in_port_t); 88 int npf_nat_insert(nl_config_t *, nl_nat_t *, pri_t); 89 90 nl_table_t * npf_table_create(u_int, int); 91 int npf_table_add_entry(nl_table_t *, npf_addr_t *, npf_netmask_t); 92 bool npf_table_exists_p(nl_config_t *, u_int); 93 int npf_table_insert(nl_config_t *, nl_table_t *); 94 void npf_table_destroy(nl_table_t *); 95 96 int npf_update_rule(int, const char *, nl_rule_t *); 97 int npf_sessions_send(int, const char *); 98 int npf_sessions_recv(int, const char *); 99 100 __END_DECLS 101 102 #endif /* _NPF_LIB_H_ */ 103