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Based on 2 normalized pattern(s): 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 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 [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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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@paul-moore.com>
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*/
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/*
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* (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008
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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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#include "netlabel_addrlist.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 structures */
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struct netlbl_domaddr_map {
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struct list_head list4;
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struct list_head list6;
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};
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struct netlbl_dommap_def {
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u32 type;
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union {
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struct netlbl_domaddr_map *addrsel;
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struct cipso_v4_doi *cipso;
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struct calipso_doi *calipso;
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};
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};
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#define netlbl_domhsh_addr4_entry(iter) \
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container_of(iter, struct netlbl_domaddr4_map, list)
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struct netlbl_domaddr4_map {
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struct netlbl_dommap_def def;
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struct netlbl_af4list list;
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};
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#define netlbl_domhsh_addr6_entry(iter) \
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container_of(iter, struct netlbl_domaddr6_map, list)
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struct netlbl_domaddr6_map {
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struct netlbl_dommap_def def;
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struct netlbl_af6list list;
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};
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struct netlbl_dom_map {
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char *domain;
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u16 family;
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struct netlbl_dommap_def 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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struct netlbl_audit *audit_info);
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int netlbl_domhsh_add_default(struct netlbl_dom_map *entry,
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struct netlbl_audit *audit_info);
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int netlbl_domhsh_remove_entry(struct netlbl_dom_map *entry,
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struct netlbl_audit *audit_info);
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int netlbl_domhsh_remove_af4(const char *domain,
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const struct in_addr *addr,
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const struct in_addr *mask,
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struct netlbl_audit *audit_info);
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int netlbl_domhsh_remove_af6(const char *domain,
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const struct in6_addr *addr,
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const struct in6_addr *mask,
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struct netlbl_audit *audit_info);
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int netlbl_domhsh_remove(const char *domain, u16 family,
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struct netlbl_audit *audit_info);
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int netlbl_domhsh_remove_default(u16 family, struct netlbl_audit *audit_info);
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struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain, u16 family);
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struct netlbl_dommap_def *netlbl_domhsh_getentry_af4(const char *domain,
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__be32 addr);
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#if IS_ENABLED(CONFIG_IPV6)
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struct netlbl_dommap_def *netlbl_domhsh_getentry_af6(const char *domain,
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const struct in6_addr *addr);
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int netlbl_domhsh_remove_af6(const char *domain,
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const struct in6_addr *addr,
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const struct in6_addr *mask,
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struct netlbl_audit *audit_info);
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#endif /* IPv6 */
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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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