70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
/*
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* NetLabel Domain Hash Table
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*
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* This file manages the domain hash table that NetLabel uses to determine
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* which network labeling protocol to use for a given domain. The NetLabel
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* system manages static and dynamic label mappings for network protocols such
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* as CIPSO and RIPSO.
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*
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* Author: Paul Moore <paul.moore@hp.com>
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*
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*/
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/*
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* (c) Copyright Hewlett-Packard Development Company, L.P., 2006
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef _NETLABEL_DOMAINHASH_H
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#define _NETLABEL_DOMAINHASH_H
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#include <linux/types.h>
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#include <linux/rcupdate.h>
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#include <linux/list.h>
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/* Domain hash table size */
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/* XXX - currently this number is an uneducated guess */
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#define NETLBL_DOMHSH_BITSIZE 7
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/* Domain mapping definition struct */
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struct netlbl_dom_map {
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char *domain;
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u32 type;
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union {
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struct cipso_v4_doi *cipsov4;
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} type_def;
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u32 valid;
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struct list_head list;
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struct rcu_head rcu;
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};
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/* init function */
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int netlbl_domhsh_init(u32 size);
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/* Manipulate the domain hash table */
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int netlbl_domhsh_add(struct netlbl_dom_map *entry);
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int netlbl_domhsh_add_default(struct netlbl_dom_map *entry);
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int netlbl_domhsh_remove_default(void);
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struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain);
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int netlbl_domhsh_walk(u32 *skip_bkt,
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u32 *skip_chain,
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int (*callback) (struct netlbl_dom_map *entry, void *arg),
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void *cb_arg);
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#endif
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