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https://github.com/sonertari/SSLproxy
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6643d832d9
Support pf rdr on Mac OS X 10.7, 10.8 and 10.9 by including the missing Apple headers in the source tree and enable private Apple code. Since we are using an interface marked private by Apple, this code is very experimental. Issue: #15 Reported by: Amit Chowdhary
214 lines
8.5 KiB
C
214 lines
8.5 KiB
C
/*
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* Copyright (c) 2000-2008 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*
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* Copyright (c) 1988, 1989, 1993
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* The Regents of the University of California. All rights reserved.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)radix.h 8.2 (Berkeley) 10/31/94
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* $FreeBSD: src/sys/net/radix.h,v 1.16.2.1 2000/05/03 19:17:11 wollman Exp $
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*/
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#ifndef _RADIX_H_
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#define _RADIX_H_
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#include <sys/appleapiopts.h>
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#ifdef PRIVATE
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#ifdef MALLOC_DECLARE
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MALLOC_DECLARE(M_RTABLE);
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#endif
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/*
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* Radix search tree node layout.
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*/
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struct radix_node {
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struct radix_mask *rn_mklist; /* list of masks contained in subtree */
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struct radix_node *rn_parent; /* parent */
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short rn_bit; /* bit offset; -1-index(netmask) */
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char rn_bmask; /* node: mask for bit test*/
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u_char rn_flags; /* enumerated next */
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#define RNF_NORMAL 1 /* leaf contains normal route */
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#define RNF_ROOT 2 /* leaf is root leaf for tree */
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#define RNF_ACTIVE 4 /* This node is alive (for rtfree) */
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union {
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struct { /* leaf only data: */
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caddr_t rn_Key; /* object of search */
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caddr_t rn_Mask; /* netmask, if present */
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struct radix_node *rn_Dupedkey;
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} rn_leaf;
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struct { /* node only data: */
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int rn_Off; /* where to start compare */
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struct radix_node *rn_L;/* progeny */
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struct radix_node *rn_R;/* progeny */
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} rn_node;
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} rn_u;
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#ifdef RN_DEBUG
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int rn_info;
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struct radix_node *rn_twin;
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struct radix_node *rn_ybro;
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#endif
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};
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#define rn_dupedkey rn_u.rn_leaf.rn_Dupedkey
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#define rn_key rn_u.rn_leaf.rn_Key
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#define rn_mask rn_u.rn_leaf.rn_Mask
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#define rn_offset rn_u.rn_node.rn_Off
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#define rn_left rn_u.rn_node.rn_L
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#define rn_right rn_u.rn_node.rn_R
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/*
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* Annotations to tree concerning potential routes applying to subtrees.
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*/
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struct radix_mask {
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short rm_bit; /* bit offset; -1-index(netmask) */
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char rm_unused; /* cf. rn_bmask */
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u_char rm_flags; /* cf. rn_flags */
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struct radix_mask *rm_mklist; /* more masks to try */
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union {
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caddr_t rmu_mask; /* the mask */
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struct radix_node *rmu_leaf; /* for normal routes */
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} rm_rmu;
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int rm_refs; /* # of references to this struct */
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};
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#define rm_mask rm_rmu.rmu_mask
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#define rm_leaf rm_rmu.rmu_leaf /* extra field would make 32 bytes */
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#define MKGet(m) {\
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if (rn_mkfreelist) {\
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m = rn_mkfreelist; \
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rn_mkfreelist = (m)->rm_mklist; \
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} else \
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R_Malloc(m, struct radix_mask *, sizeof (*(m))); }\
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#define MKFree(m) { (m)->rm_mklist = rn_mkfreelist; rn_mkfreelist = (m);}
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typedef int walktree_f_t(struct radix_node *, void *);
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typedef int rn_matchf_t(struct radix_node *, void *);
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struct radix_node_head {
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struct radix_node *rnh_treetop;
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int rnh_addrsize; /* permit, but not require fixed keys */
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int rnh_pktsize; /* permit, but not require fixed keys */
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struct radix_node *(*rnh_addaddr) /* add based on sockaddr */
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(void *v, void *mask,
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struct radix_node_head *head, struct radix_node nodes[]);
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struct radix_node *(*rnh_addpkt) /* add based on packet hdr */
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(void *v, void *mask,
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struct radix_node_head *head, struct radix_node nodes[]);
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struct radix_node *(*rnh_deladdr) /* remove based on sockaddr */
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(void *v, void *mask, struct radix_node_head *head);
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struct radix_node *(*rnh_delpkt) /* remove based on packet hdr */
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(void *v, void *mask, struct radix_node_head *head);
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struct radix_node *(*rnh_matchaddr) /* locate based on sockaddr */
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(void *v, struct radix_node_head *head);
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/* locate based on sockaddr and rn_matchf_t() */
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struct radix_node *(*rnh_matchaddr_args)
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(void *v, struct radix_node_head *head,
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rn_matchf_t *f, void *w);
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struct radix_node *(*rnh_lookup) /* locate based on sockaddr */
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(void *v, void *mask, struct radix_node_head *head);
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/* locate based on sockaddr, mask and rn_matchf_t() */
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struct radix_node *(*rnh_lookup_args)
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(void *v, void *mask, struct radix_node_head *head,
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rn_matchf_t *f, void *);
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struct radix_node *(*rnh_matchpkt) /* locate based on packet hdr */
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(void *v, struct radix_node_head *head);
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int (*rnh_walktree) /* traverse tree */
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(struct radix_node_head *head, walktree_f_t *f, void *w);
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int (*rnh_walktree_from) /* traverse tree below a */
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(struct radix_node_head *head, void *a, void *m,
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walktree_f_t *f, void *w);
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void (*rnh_close) /* do something when the last ref drops */
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(struct radix_node *rn, struct radix_node_head *head);
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struct radix_node rnh_nodes[3]; /* empty tree for common case */
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int rnh_cnt; /* tree dimension */
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};
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#ifndef KERNEL
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#define Bcmp(a, b, n) bcmp(((char *)(a)), ((char *)(b)), (n))
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#define Bcopy(a, b, n) bcopy(((char *)(a)), ((char *)(b)), (unsigned)(n))
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#define Bzero(p, n) bzero((char *)(p), (int)(n));
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#define R_Malloc(p, t, n) (p = (t) malloc((unsigned int)(n)))
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#define R_Free(p) free((char *)p);
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#else
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#define Bcmp(a, b, n) bcmp(((caddr_t)(a)), ((caddr_t)(b)), (unsigned)(n))
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#define Bcopy(a, b, n) bcopy(((caddr_t)(a)), ((caddr_t)(b)), (unsigned)(n))
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#define Bzero(p, n) bzero((caddr_t)(p), (unsigned)(n));
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#define R_Malloc(p, t, n) (p = (t) _MALLOC((uint32_t)(n), M_RTABLE, M_WAITOK))
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#define R_Free(p) FREE((caddr_t)p, M_RTABLE);
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#endif /*KERNEL*/
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void rn_init(void);
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int rn_inithead(void **, int);
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int rn_refines(void *, void *);
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struct radix_node
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*rn_addmask(void *, int, int),
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*rn_addroute(void *, void *, struct radix_node_head *,
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struct radix_node [2]),
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*rn_delete(void *, void *, struct radix_node_head *),
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*rn_lookup(void *v_arg, void *m_arg, struct radix_node_head *head),
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*rn_lookup_args(void *v_arg, void *m_arg, struct radix_node_head *head,
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rn_matchf_t *, void *),
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*rn_match(void *, struct radix_node_head *),
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*rn_match_args(void *, struct radix_node_head *, rn_matchf_t *, void *);
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#endif /* PRIVATE */
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#endif /* _RADIX_H_ */
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