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//==========================================================================
//
//      include/net/radix.h
//
//      
//
//==========================================================================
//####BSDCOPYRIGHTBEGIN####
//
// -------------------------------------------
//
// Portions of this software may have been derived from OpenBSD or other sources,
// and are covered by the appropriate copyright disclaimers included herein.
//
// -------------------------------------------
//
//####BSDCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    gthomas
// Contributors: gthomas
// Date:         2000-01-10
// Purpose:      
// Description:  
//              
//
//####DESCRIPTIONEND####
//
//==========================================================================
 
 
/*      $OpenBSD: radix.h,v 1.3 1996/09/05 08:42:34 mickey Exp $        */
/*      $NetBSD: radix.h,v 1.8 1996/02/13 22:00:37 christos Exp $       */
 
/*
 * Copyright (c) 1988, 1989, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 *
 *      @(#)radix.h     8.2 (Berkeley) 10/31/94
 */
 
#ifndef _NET_RADIX_H_
#define _NET_RADIX_H_
 
/*
 * Radix search tree node layout.
 */
 
struct radix_node {
        struct  radix_mask *rn_mklist;  /* list of masks contained in subtree */
        struct  radix_node *rn_p;       /* parent */
        short   rn_b;                   /* bit offset; -1-index(netmask) */
        char    rn_bmask;               /* node: mask for bit test*/
        u_char  rn_flags;               /* enumerated next */
#define RNF_NORMAL      1               /* leaf contains normal route */
#define RNF_ROOT        2               /* leaf is root leaf for tree */
#define RNF_ACTIVE      4               /* This node is alive (for rtfree) */
        union {
                struct {                        /* leaf only data: */
                        caddr_t rn_Key;         /* object of search */
                        caddr_t rn_Mask;        /* netmask, if present */
                        struct  radix_node *rn_Dupedkey;
                } rn_leaf;
                struct {                        /* node only data: */
                        int     rn_Off;         /* where to start compare */
                        struct  radix_node *rn_L;/* progeny */
                        struct  radix_node *rn_R;/* progeny */
                } rn_node;
        }       rn_u;
#ifdef RN_DEBUG
        int rn_info;
        struct radix_node *rn_twin;
        struct radix_node *rn_ybro;
#endif
};
 
#define rn_dupedkey rn_u.rn_leaf.rn_Dupedkey
#define rn_key rn_u.rn_leaf.rn_Key
#define rn_mask rn_u.rn_leaf.rn_Mask
#define rn_off rn_u.rn_node.rn_Off
#define rn_l rn_u.rn_node.rn_L
#define rn_r rn_u.rn_node.rn_R
 
/*
 * Annotations to tree concerning potential routes applying to subtrees.
 */
 
extern struct radix_mask {
        short   rm_b;                   /* bit offset; -1-index(netmask) */
        char    rm_unused;              /* cf. rn_bmask */
        u_char  rm_flags;               /* cf. rn_flags */
        struct  radix_mask *rm_mklist;  /* more masks to try */
        union   {
                caddr_t rmu_mask;               /* the mask */
                struct  radix_node *rmu_leaf;   /* for normal routes */
        }       rm_rmu;
        int     rm_refs;                /* # of references to this struct */
} *rn_mkfreelist;
 
#define rm_mask rm_rmu.rmu_mask
#define rm_leaf rm_rmu.rmu_leaf         /* extra field would make 32 bytes */
 
#define MKGet(m) {\
        if (rn_mkfreelist) {\
                m = rn_mkfreelist; \
                rn_mkfreelist = (m)->rm_mklist; \
        } else \
                R_Malloc(m, struct radix_mask *, sizeof (*(m))); }\
 
#define MKFree(m) { (m)->rm_mklist = rn_mkfreelist; rn_mkfreelist = (m);}
 
struct radix_node_head {
        struct  radix_node *rnh_treetop;
        int     rnh_addrsize;           /* permit, but not require fixed keys */
        int     rnh_pktsize;            /* permit, but not require fixed keys */
        struct  radix_node *(*rnh_addaddr)      /* add based on sockaddr */
                __P((void *v, void *mask,
                     struct radix_node_head *head, struct radix_node nodes[]));
        struct  radix_node *(*rnh_addpkt)       /* add based on packet hdr */
                __P((void *v, void *mask,
                     struct radix_node_head *head, struct radix_node nodes[]));
        struct  radix_node *(*rnh_deladdr)      /* remove based on sockaddr */
                __P((void *v, void *mask, struct radix_node_head *head));
        struct  radix_node *(*rnh_delpkt)       /* remove based on packet hdr */
                __P((void *v, void *mask, struct radix_node_head *head));
        struct  radix_node *(*rnh_matchaddr)    /* locate based on sockaddr */
                __P((void *v, struct radix_node_head *head));
        struct  radix_node *(*rnh_lookup)       /* locate based on sockaddr */
                __P((void *v, void *mask, struct radix_node_head *head));
        struct  radix_node *(*rnh_matchpkt)     /* locate based on packet hdr */
                __P((void *v, struct radix_node_head *head));
        int     (*rnh_walktree)                 /* traverse tree */
                __P((struct radix_node_head *,
                     int (*)(struct radix_node *, void *), void *));
        struct  radix_node rnh_nodes[3];        /* empty tree for common case */
};
 
 
#ifndef _KERNEL
#define Bcmp(a, b, n) bcmp(((char *)(a)), ((char *)(b)), (n))
#define Bcopy(a, b, n) bcopy(((char *)(a)), ((char *)(b)), (unsigned)(n))
#define Bzero(p, n) bzero((char *)(p), (int)(n));
#define R_Malloc(p, t, n) (p = (t) malloc((unsigned int)(n)))
#define Free(p) free((char *)p);
#else
#define Bcmp(a, b, n) bcmp(((caddr_t)(a)), ((caddr_t)(b)), (unsigned)(n))
#define Bcopy(a, b, n) bcopy(((caddr_t)(a)), ((caddr_t)(b)), (unsigned)(n))
#define Bzero(p, n) bzero((caddr_t)(p), (unsigned)(n));
#define R_Malloc(p, t, n) (p = (t) malloc((unsigned long)(n), M_RTABLE, M_DONTWAIT))
#define Free(p) free((caddr_t)p, M_RTABLE);
#endif /* !_KERNEL */
 
#if defined(_KERNEL) || defined(_ROUTED)
void     rn_init __P((void));
int      rn_inithead __P((void **, int));
int      rn_refines __P((void *, void *));
int      rn_walktree __P((struct radix_node_head *,
                          int (*)(struct radix_node *, void *), void *));
struct radix_node
         *rn_addmask __P((void *, int, int)),
         *rn_addroute __P((void *, void *, struct radix_node_head *,
                        struct radix_node [2])),
         *rn_delete __P((void *, void *, struct radix_node_head *)),
         *rn_insert __P((void *, struct radix_node_head *, int *,
                        struct radix_node [2])),
         *rn_lookup __P((void *, void *, struct radix_node_head *)),
         *rn_match __P((void *, struct radix_node_head *)),
         *rn_newpair __P((void *, int, struct radix_node[2])),
         *rn_search __P((void *, struct radix_node *)),
         *rn_search_m __P((void *, struct radix_node *, void *));
#endif /* define(_KERNEL) || defined(_ROUTED) */
 
#endif /* !_NET_RADIX_H_ */

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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [net/] [tcpip/] [v2_0/] [include/] [net/] [radix.h] - Blame information for rev 773

Line No.	Rev	Author	Line
1	27	unneback	`//==========================================================================`
2			`//`
3			`// include/net/radix.h`
4			`//`
5			`//`
6			`//`
7			`//==========================================================================`
8			`//####BSDCOPYRIGHTBEGIN####`
9			`//`
10			`// -------------------------------------------`
11			`//`
12			`// Portions of this software may have been derived from OpenBSD or other sources,`
13			`// and are covered by the appropriate copyright disclaimers included herein.`
14			`//`
15			`// -------------------------------------------`
16			`//`
17			`//####BSDCOPYRIGHTEND####`
18			`//==========================================================================`
19			`//#####DESCRIPTIONBEGIN####`
20			`//`
21			`// Author(s): gthomas`
22			`// Contributors: gthomas`
23			`// Date: 2000-01-10`
24			`// Purpose:`
25			`// Description:`
26			`//`
27			`//`
28			`//####DESCRIPTIONEND####`
29			`//`
30			`//==========================================================================`
31
32
33			`/* $OpenBSD: radix.h,v 1.3 1996/09/05 08:42:34 mickey Exp $ */`
34			`/* $NetBSD: radix.h,v 1.8 1996/02/13 22:00:37 christos Exp $ */`
35
36			`/*`
37			`* Copyright (c) 1988, 1989, 1993`
38			`* The Regents of the University of California. All rights reserved.`
39			`*`
40			`* Redistribution and use in source and binary forms, with or without`
41			`* modification, are permitted provided that the following conditions`
42			`* are met:`
43			`* 1. Redistributions of source code must retain the above copyright`
44			`* notice, this list of conditions and the following disclaimer.`
45			`* 2. Redistributions in binary form must reproduce the above copyright`
46			`* notice, this list of conditions and the following disclaimer in the`
47			`* documentation and/or other materials provided with the distribution.`
48			`* 3. All advertising materials mentioning features or use of this software`
49			`* must display the following acknowledgement:`
50			`* This product includes software developed by the University of`
51			`* California, Berkeley and its contributors.`
52			`* 4. Neither the name of the University nor the names of its contributors`
53			`* may be used to endorse or promote products derived from this software`
54			`* without specific prior written permission.`
55			`*`
56			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
57			`* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE`
58			`* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE`
59			`* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE`
60			`* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL`
61			`* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS`
62			`* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)`
63			`* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT`
64			`* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY`
65			`* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF`
66			`* SUCH DAMAGE.`
67			`*`
68			`* @(#)radix.h 8.2 (Berkeley) 10/31/94`
69			`*/`
70
71			`#ifndef _NET_RADIX_H_`
72			`#define _NET_RADIX_H_`
73
74			`/*`
75			`* Radix search tree node layout.`
76			`*/`
77
78			`struct radix_node {`
79			`struct radix_mask rn_mklist; / list of masks contained in subtree */`
80			`struct radix_node rn_p; / parent */`
81			`short rn_b; /* bit offset; -1-index(netmask) */`
82			`char rn_bmask; /* node: mask for bit test*/`
83			`u_char rn_flags; /* enumerated next */`
84			`#define RNF_NORMAL 1 /* leaf contains normal route */`
85			`#define RNF_ROOT 2 /* leaf is root leaf for tree */`
86			`#define RNF_ACTIVE 4 /* This node is alive (for rtfree) */`
87			`union {`
88			`struct { /* leaf only data: */`
89			`caddr_t rn_Key; /* object of search */`
90			`caddr_t rn_Mask; /* netmask, if present */`
91			`struct radix_node *rn_Dupedkey;`
92			`} rn_leaf;`
93			`struct { /* node only data: */`
94			`int rn_Off; /* where to start compare */`
95			`struct radix_node rn_L;/ progeny */`
96			`struct radix_node rn_R;/ progeny */`
97			`} rn_node;`
98			`} rn_u;`
99			`#ifdef RN_DEBUG`
100			`int rn_info;`
101			`struct radix_node *rn_twin;`
102			`struct radix_node *rn_ybro;`
103			`#endif`
104			`};`
105
106			`#define rn_dupedkey rn_u.rn_leaf.rn_Dupedkey`
107			`#define rn_key rn_u.rn_leaf.rn_Key`
108			`#define rn_mask rn_u.rn_leaf.rn_Mask`
109			`#define rn_off rn_u.rn_node.rn_Off`
110			`#define rn_l rn_u.rn_node.rn_L`
111			`#define rn_r rn_u.rn_node.rn_R`
112
113			`/*`
114			`* Annotations to tree concerning potential routes applying to subtrees.`
115			`*/`
116
117			`extern struct radix_mask {`
118			`short rm_b; /* bit offset; -1-index(netmask) */`
119			`char rm_unused; /* cf. rn_bmask */`
120			`u_char rm_flags; /* cf. rn_flags */`
121			`struct radix_mask rm_mklist; / more masks to try */`
122			`union {`
123			`caddr_t rmu_mask; /* the mask */`
124			`struct radix_node rmu_leaf; / for normal routes */`
125			`} rm_rmu;`
126			`int rm_refs; /* # of references to this struct */`
127			`} *rn_mkfreelist;`
128
129			`#define rm_mask rm_rmu.rmu_mask`
130			`#define rm_leaf rm_rmu.rmu_leaf /* extra field would make 32 bytes */`
131
132			`#define MKGet(m) {\`
133			`if (rn_mkfreelist) {\`
134			`m = rn_mkfreelist; \`
135			`rn_mkfreelist = (m)->rm_mklist; \`
136			`} else \`
137			`R_Malloc(m, struct radix_mask , sizeof ((m))); }\`
138
139			`#define MKFree(m) { (m)->rm_mklist = rn_mkfreelist; rn_mkfreelist = (m);}`
140
141			`struct radix_node_head {`
142			`struct radix_node *rnh_treetop;`
143			`int rnh_addrsize; /* permit, but not require fixed keys */`
144			`int rnh_pktsize; /* permit, but not require fixed keys */`
145			`struct radix_node (rnh_addaddr) /* add based on sockaddr */`
146			`__P((void v, void mask,`
147			`struct radix_node_head *head, struct radix_node nodes[]));`
148			`struct radix_node (rnh_addpkt) /* add based on packet hdr */`
149			`__P((void v, void mask,`
150			`struct radix_node_head *head, struct radix_node nodes[]));`
151			`struct radix_node (rnh_deladdr) /* remove based on sockaddr */`
152			`__P((void v, void mask, struct radix_node_head *head));`
153			`struct radix_node (rnh_delpkt) /* remove based on packet hdr */`
154			`__P((void v, void mask, struct radix_node_head *head));`
155			`struct radix_node (rnh_matchaddr) /* locate based on sockaddr */`
156			`__P((void v, struct radix_node_head head));`
157			`struct radix_node (rnh_lookup) /* locate based on sockaddr */`
158			`__P((void v, void mask, struct radix_node_head *head));`
159			`struct radix_node (rnh_matchpkt) /* locate based on packet hdr */`
160			`__P((void v, struct radix_node_head head));`
161			`int (rnh_walktree) / traverse tree */`
162			`__P((struct radix_node_head *,`
163			`int ()(struct radix_node , void ), void ));`
164			`struct radix_node rnh_nodes[3]; /* empty tree for common case */`
165			`};`
166
167
168			`#ifndef _KERNEL`
169			`#define Bcmp(a, b, n) bcmp(((char )(a)), ((char )(b)), (n))`
170			`#define Bcopy(a, b, n) bcopy(((char )(a)), ((char )(b)), (unsigned)(n))`
171			`#define Bzero(p, n) bzero((char *)(p), (int)(n));`
172			`#define R_Malloc(p, t, n) (p = (t) malloc((unsigned int)(n)))`
173			`#define Free(p) free((char *)p);`
174			`#else`
175			`#define Bcmp(a, b, n) bcmp(((caddr_t)(a)), ((caddr_t)(b)), (unsigned)(n))`
176			`#define Bcopy(a, b, n) bcopy(((caddr_t)(a)), ((caddr_t)(b)), (unsigned)(n))`
177			`#define Bzero(p, n) bzero((caddr_t)(p), (unsigned)(n));`
178			`#define R_Malloc(p, t, n) (p = (t) malloc((unsigned long)(n), M_RTABLE, M_DONTWAIT))`
179			`#define Free(p) free((caddr_t)p, M_RTABLE);`
180			`#endif /* !_KERNEL */`
181
182			`#if defined(_KERNEL) \|\| defined(_ROUTED)`
183			`void rn_init __P((void));`
184			`int rn_inithead __P((void **, int));`
185			`int rn_refines __P((void , void ));`
186			`int rn_walktree __P((struct radix_node_head *,`
187			`int ()(struct radix_node , void ), void ));`
188			`struct radix_node`
189			`rn_addmask __P((void , int, int)),`
190			`rn_addroute __P((void , void , struct radix_node_head ,`
191			`struct radix_node [2])),`
192			`rn_delete __P((void , void , struct radix_node_head )),`
193			`rn_insert __P((void , struct radix_node_head , int ,`
194			`struct radix_node [2])),`
195			`rn_lookup __P((void , void , struct radix_node_head )),`
196			`rn_match __P((void , struct radix_node_head *)),`
197			`rn_newpair __P((void , int, struct radix_node[2])),`
198			`rn_search __P((void , struct radix_node *)),`
199			`rn_search_m __P((void , struct radix_node , void ));`
200			`#endif /* define(_KERNEL) \|\| defined(_ROUTED) */`
201
202			`#endif /* !_NET_RADIX_H_ */`