cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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netlabel_domainhash.h (3125B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 * NetLabel Domain Hash Table
      4 *
      5 * This file manages the domain hash table that NetLabel uses to determine
      6 * which network labeling protocol to use for a given domain.  The NetLabel
      7 * system manages static and dynamic label mappings for network protocols such
      8 * as CIPSO and RIPSO.
      9 *
     10 * Author: Paul Moore <paul@paul-moore.com>
     11 */
     12
     13/*
     14 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008
     15 */
     16
     17#ifndef _NETLABEL_DOMAINHASH_H
     18#define _NETLABEL_DOMAINHASH_H
     19
     20#include <linux/types.h>
     21#include <linux/rcupdate.h>
     22#include <linux/list.h>
     23
     24#include "netlabel_addrlist.h"
     25
     26/* Domain hash table size */
     27/* XXX - currently this number is an uneducated guess */
     28#define NETLBL_DOMHSH_BITSIZE       7
     29
     30/* Domain mapping definition structures */
     31struct netlbl_domaddr_map {
     32	struct list_head list4;
     33	struct list_head list6;
     34};
     35struct netlbl_dommap_def {
     36	u32 type;
     37	union {
     38		struct netlbl_domaddr_map *addrsel;
     39		struct cipso_v4_doi *cipso;
     40		struct calipso_doi *calipso;
     41	};
     42};
     43#define netlbl_domhsh_addr4_entry(iter) \
     44	container_of(iter, struct netlbl_domaddr4_map, list)
     45struct netlbl_domaddr4_map {
     46	struct netlbl_dommap_def def;
     47
     48	struct netlbl_af4list list;
     49};
     50#define netlbl_domhsh_addr6_entry(iter) \
     51	container_of(iter, struct netlbl_domaddr6_map, list)
     52struct netlbl_domaddr6_map {
     53	struct netlbl_dommap_def def;
     54
     55	struct netlbl_af6list list;
     56};
     57
     58struct netlbl_dom_map {
     59	char *domain;
     60	u16 family;
     61	struct netlbl_dommap_def def;
     62
     63	u32 valid;
     64	struct list_head list;
     65	struct rcu_head rcu;
     66};
     67
     68/* init function */
     69int netlbl_domhsh_init(u32 size);
     70
     71/* Manipulate the domain hash table */
     72int netlbl_domhsh_add(struct netlbl_dom_map *entry,
     73		      struct netlbl_audit *audit_info);
     74int netlbl_domhsh_add_default(struct netlbl_dom_map *entry,
     75			      struct netlbl_audit *audit_info);
     76int netlbl_domhsh_remove_entry(struct netlbl_dom_map *entry,
     77			       struct netlbl_audit *audit_info);
     78int netlbl_domhsh_remove_af4(const char *domain,
     79			     const struct in_addr *addr,
     80			     const struct in_addr *mask,
     81			     struct netlbl_audit *audit_info);
     82int netlbl_domhsh_remove_af6(const char *domain,
     83			     const struct in6_addr *addr,
     84			     const struct in6_addr *mask,
     85			     struct netlbl_audit *audit_info);
     86int netlbl_domhsh_remove(const char *domain, u16 family,
     87			 struct netlbl_audit *audit_info);
     88int netlbl_domhsh_remove_default(u16 family, struct netlbl_audit *audit_info);
     89struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain, u16 family);
     90struct netlbl_dommap_def *netlbl_domhsh_getentry_af4(const char *domain,
     91						     __be32 addr);
     92#if IS_ENABLED(CONFIG_IPV6)
     93struct netlbl_dommap_def *netlbl_domhsh_getentry_af6(const char *domain,
     94						   const struct in6_addr *addr);
     95int netlbl_domhsh_remove_af6(const char *domain,
     96			     const struct in6_addr *addr,
     97			     const struct in6_addr *mask,
     98			     struct netlbl_audit *audit_info);
     99#endif /* IPv6 */
    100
    101int netlbl_domhsh_walk(u32 *skip_bkt,
    102		     u32 *skip_chain,
    103		     int (*callback) (struct netlbl_dom_map *entry, void *arg),
    104		     void *cb_arg);
    105
    106#endif