bfc88dcbf7
Approved by: glebius (mentor) BSD Licensed by: Darren Reed <darrenr@reed.wattle.id.au> (author)
98 lines
2.6 KiB
C
98 lines
2.6 KiB
C
/* $FreeBSD$ */
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/*
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* Copyright (C) 2012 by Darren Reed.
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*
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* See the IPFILTER.LICENCE file for details on licencing.
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*/
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#ifndef __RADIX_IPF_H__
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#define __RADIX_IPF_H__
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#ifndef U_32_T
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typedef unsigned int u_32_t;
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# define U_32_T 1
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#endif
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typedef struct ipf_rdx_mask {
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struct ipf_rdx_mask *next;
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struct ipf_rdx_node *node;
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u_32_t *mask;
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int maskbitcount;
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} ipf_rdx_mask_t;
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typedef struct ipf_rdx_node {
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struct ipf_rdx_node *left;
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struct ipf_rdx_node *right;
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struct ipf_rdx_node *parent;
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struct ipf_rdx_node *dupkey;
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struct ipf_rdx_mask *masks;
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struct ipf_rdx_mask *mymask;
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u_32_t *addrkey;
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u_32_t *maskkey;
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u_32_t *addroff;
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u_32_t *maskoff;
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u_32_t lastmask;
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u_32_t bitmask;
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int offset;
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int index;
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int maskbitcount;
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int root;
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#ifdef RDX_DEBUG
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char name[40];
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#endif
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} ipf_rdx_node_t;
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struct ipf_rdx_head;
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typedef void (* radix_walk_func_t)(ipf_rdx_node_t *, void *);
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typedef ipf_rdx_node_t *(* idx_hamn_func_t)(struct ipf_rdx_head *,
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addrfamily_t *, addrfamily_t *,
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ipf_rdx_node_t *);
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typedef ipf_rdx_node_t *(* idx_ham_func_t)(struct ipf_rdx_head *,
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addrfamily_t *, addrfamily_t *);
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typedef ipf_rdx_node_t *(* idx_ha_func_t)(struct ipf_rdx_head *,
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addrfamily_t *);
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typedef void (* idx_walk_func_t)(struct ipf_rdx_head *,
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radix_walk_func_t, void *);
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typedef struct ipf_rdx_head {
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ipf_rdx_node_t *root;
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ipf_rdx_node_t nodes[3];
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ipfmutex_t lock;
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idx_hamn_func_t addaddr; /* add addr/mask to tree */
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idx_ham_func_t deladdr; /* delete addr/mask from tree */
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idx_ham_func_t lookup; /* look for specific addr/mask */
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idx_ha_func_t matchaddr; /* search tree for address match */
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idx_walk_func_t walktree; /* walk entire tree */
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} ipf_rdx_head_t;
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typedef struct radix_softc {
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u_char *zeros;
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u_char *ones;
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} radix_softc_t;
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#undef RADIX_NODE_HEAD_LOCK
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#undef RADIX_NODE_HEAD_UNLOCK
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#ifdef _KERNEL
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# define RADIX_NODE_HEAD_LOCK(x) MUTEX_ENTER(&(x)->lock)
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# define RADIX_NODE_HEAD_UNLOCK(x) MUTEX_UNLOCK(&(x)->lock)
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#else
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# define RADIX_NODE_HEAD_LOCK(x)
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# define RADIX_NODE_HEAD_UNLOCK(x)
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#endif
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extern void *ipf_rx_create __P((void));
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extern int ipf_rx_init __P((void *));
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extern void ipf_rx_destroy __P((void *));
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extern int ipf_rx_inithead __P((radix_softc_t *, ipf_rdx_head_t **));
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extern void ipf_rx_freehead __P((ipf_rdx_head_t *));
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extern ipf_rdx_node_t *ipf_rx_addroute __P((ipf_rdx_head_t *,
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addrfamily_t *, addrfamily_t *,
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ipf_rdx_node_t *));
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extern ipf_rdx_node_t *ipf_rx_delete __P((ipf_rdx_head_t *, addrfamily_t *,
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addrfamily_t *));
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extern void ipf_rx_walktree __P((ipf_rdx_head_t *, radix_walk_func_t,
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void *));
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#endif /* __RADIX_IPF_H__ */
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