/*
 * NetLabel Domain Hash Table
 *
 * This file manages the domain hash table that NetLabel uses to determine
 * which network labeling protocol to use for a given domain.  The NetLabel
 * system manages static and dynamic label mappings for network protocols such
 * as CIPSO and RIPSO.
 *
 * Author: Paul Moore <paul@paul-moore.com>
 *
 */

/*
 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008
 *
 * This program is free software;  you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY;  without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
 * the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program;  if not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef _NETLABEL_DOMAINHASH_H
#define _NETLABEL_DOMAINHASH_H

#include <linux/types.h>
#include <linux/rcupdate.h>
#include <linux/list.h>

#include "netlabel_addrlist.h"

/* Domain hash table size */
/* XXX - currently this number is an uneducated guess */
#define NETLBL_DOMHSH_BITSIZE       7

/* Domain mapping definition structures */
struct netlbl_domaddr_map {
	struct list_head list4;
	struct list_head list6;
};
struct netlbl_dommap_def {
	u32 type;
	union {
		struct netlbl_domaddr_map *addrsel;
		struct cipso_v4_doi *cipso;
		struct calipso_doi *calipso;
	};
};
#define netlbl_domhsh_addr4_entry(iter) \
	container_of(iter, struct netlbl_domaddr4_map, list)
struct netlbl_domaddr4_map {
	struct netlbl_dommap_def def;

	struct netlbl_af4list list;
};
#define netlbl_domhsh_addr6_entry(iter) \
	container_of(iter, struct netlbl_domaddr6_map, list)
struct netlbl_domaddr6_map {
	struct netlbl_dommap_def def;

	struct netlbl_af6list list;
};

struct netlbl_dom_map {
	char *domain;
	u16 family;
	struct netlbl_dommap_def def;

	u32 valid;
	struct list_head list;
	struct rcu_head rcu;
};

/* init function */
int netlbl_domhsh_init(u32 size);

/* Manipulate the domain hash table */
int netlbl_domhsh_add(struct netlbl_dom_map *entry,
		      struct netlbl_audit *audit_info);
int netlbl_domhsh_add_default(struct netlbl_dom_map *entry,
			      struct netlbl_audit *audit_info);
int netlbl_domhsh_remove_entry(struct netlbl_dom_map *entry,
			       struct netlbl_audit *audit_info);
int netlbl_domhsh_remove_af4(const char *domain,
			     const struct in_addr *addr,
			     const struct in_addr *mask,
			     struct netlbl_audit *audit_info);
int netlbl_domhsh_remove_af6(const char *domain,
			     const struct in6_addr *addr,
			     const struct in6_addr *mask,
			     struct netlbl_audit *audit_info);
int netlbl_domhsh_remove(const char *domain, u16 family,
			 struct netlbl_audit *audit_info);
int netlbl_domhsh_remove_default(u16 family, struct netlbl_audit *audit_info);
struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain, u16 family);
struct netlbl_dommap_def *netlbl_domhsh_getentry_af4(const char *domain,
						     __be32 addr);
#if IS_ENABLED(CONFIG_IPV6)
struct netlbl_dommap_def *netlbl_domhsh_getentry_af6(const char *domain,
						   const struct in6_addr *addr);
int netlbl_domhsh_remove_af6(const char *domain,
			     const struct in6_addr *addr,
			     const struct in6_addr *mask,
			     struct netlbl_audit *audit_info);
#endif /* IPv6 */

int netlbl_domhsh_walk(u32 *skip_bkt,
		     u32 *skip_chain,
		     int (*callback) (struct netlbl_dom_map *entry, void *arg),
		     void *cb_arg);

#endif
options</b><form method='get'><input type='hidden' name='id' value='50dcb6cdb70281d76b28d1564f8e076bb08f2c60'/><input type='hidden' name='id2' value='f5b0cba8f23915e92932f11eb063e37d70556a89'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=50dcb6cdb70281d76b28d1564f8e076bb08f2c60&amp;id2=f5b0cba8f23915e92932f11eb063e37d70556a89'>Diffstat</a> (limited to 'include/net/irda/irlmp.h')</div><table summary='diffstat' class='diffstat'>