cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

addr.h (4109B)

      1/*
      2 * net/tipc/addr.h: Include file for TIPC address utility routines
      3 *
      4 * Copyright (c) 2000-2006, 2018, Ericsson AB
      5 * Copyright (c) 2004-2005, Wind River Systems
      6 * Copyright (c) 2020-2021, Red Hat Inc
      7 * All rights reserved.
      8 *
      9 * Redistribution and use in source and binary forms, with or without
     10 * modification, are permitted provided that the following conditions are met:
     11 *
     12 * 1. Redistributions of source code must retain the above copyright
     13 *    notice, this list of conditions and the following disclaimer.
     14 * 2. Redistributions in binary form must reproduce the above copyright
     15 *    notice, this list of conditions and the following disclaimer in the
     16 *    documentation and/or other materials provided with the distribution.
     17 * 3. Neither the names of the copyright holders nor the names of its
     18 *    contributors may be used to endorse or promote products derived from
     19 *    this software without specific prior written permission.
     20 *
     21 * Alternatively, this software may be distributed under the terms of the
     22 * GNU General Public License ("GPL") version 2 as published by the Free
     23 * Software Foundation.
     24 *
     25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
     26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
     29 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35 * POSSIBILITY OF SUCH DAMAGE.
     36 */
     37
     38#ifndef _TIPC_ADDR_H
     39#define _TIPC_ADDR_H
     40
     41#include <linux/types.h>
     42#include <linux/tipc.h>
     43#include <net/net_namespace.h>
     44#include <net/netns/generic.h>
     45#include "core.h"
     46
     47/* Struct tipc_uaddr: internal version of struct sockaddr_tipc.
     48 * Must be kept aligned both regarding field positions and size.
     49 */
     50struct tipc_uaddr {
     51	unsigned short family;
     52	unsigned char addrtype;
     53	signed char scope;
     54	union {
     55		struct {
     56			struct tipc_service_addr sa;
     57			u32 lookup_node;
     58		};
     59		struct tipc_service_range sr;
     60		struct tipc_socket_addr sk;
     61	};
     62};
     63
     64static inline void tipc_uaddr(struct tipc_uaddr *ua, u32 atype, u32 scope,
     65			      u32 type, u32 lower, u32 upper)
     66{
     67	ua->family = AF_TIPC;
     68	ua->addrtype = atype;
     69	ua->scope = scope;
     70	ua->sr.type = type;
     71	ua->sr.lower = lower;
     72	ua->sr.upper = upper;
     73}
     74
     75static inline bool tipc_uaddr_valid(struct tipc_uaddr *ua, int len)
     76{
     77	u32 atype;
     78
     79	if (len < sizeof(struct sockaddr_tipc))
     80		return false;
     81	atype = ua->addrtype;
     82	if (ua->family != AF_TIPC)
     83		return false;
     84	if (atype == TIPC_SERVICE_ADDR || atype == TIPC_SOCKET_ADDR)
     85		return true;
     86	if (atype == TIPC_SERVICE_RANGE)
     87		return ua->sr.upper >= ua->sr.lower;
     88	return false;
     89}
     90
     91static inline u32 tipc_own_addr(struct net *net)
     92{
     93	return tipc_net(net)->node_addr;
     94}
     95
     96static inline u8 *tipc_own_id(struct net *net)
     97{
     98	struct tipc_net *tn = tipc_net(net);
     99
    100	if (!strlen(tn->node_id_string))
    101		return NULL;
    102	return tn->node_id;
    103}
    104
    105static inline char *tipc_own_id_string(struct net *net)
    106{
    107	return tipc_net(net)->node_id_string;
    108}
    109
    110static inline u32 tipc_cluster_mask(u32 addr)
    111{
    112	return addr & TIPC_ZONE_CLUSTER_MASK;
    113}
    114
    115static inline int tipc_node2scope(u32 node)
    116{
    117	return node ? TIPC_NODE_SCOPE : TIPC_CLUSTER_SCOPE;
    118}
    119
    120static inline int tipc_scope2node(struct net *net, int sc)
    121{
    122	return sc != TIPC_NODE_SCOPE ? 0 : tipc_own_addr(net);
    123}
    124
    125static inline int in_own_node(struct net *net, u32 addr)
    126{
    127	return addr == tipc_own_addr(net) || !addr;
    128}
    129
    130bool tipc_in_scope(bool legacy_format, u32 domain, u32 addr);
    131void tipc_set_node_id(struct net *net, u8 *id);
    132void tipc_set_node_addr(struct net *net, u32 addr);
    133char *tipc_nodeid2string(char *str, u8 *id);
    134u32 tipc_node_id2hash(u8 *id128);
    135
    136#endif