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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phonet.h (4640B)

      1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2/**
      3 * file phonet.h
      4 *
      5 * Phonet sockets kernel interface
      6 *
      7 * Copyright (C) 2008 Nokia Corporation. All rights reserved.
      8 *
      9 * This program is free software; you can redistribute it and/or
     10 * modify it under the terms of the GNU General Public License
     11 * version 2 as published by the Free Software Foundation.
     12 *
     13 * This program is distributed in the hope that it will be useful, but
     14 * WITHOUT ANY WARRANTY; without even the implied warranty of
     15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     16 * General Public License for more details.
     17 *
     18 * You should have received a copy of the GNU General Public License
     19 * along with this program; if not, write to the Free Software
     20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
     21 * 02110-1301 USA
     22 */
     23
     24#ifndef _UAPILINUX_PHONET_H
     25#define _UAPILINUX_PHONET_H
     26
     27#include <linux/types.h>
     28#include <linux/socket.h>
     29
     30/* Automatic protocol selection */
     31#define PN_PROTO_TRANSPORT	0
     32/* Phonet datagram socket */
     33#define PN_PROTO_PHONET		1
     34/* Phonet pipe */
     35#define PN_PROTO_PIPE		2
     36#define PHONET_NPROTO		3
     37
     38/* Socket options for SOL_PNPIPE level */
     39#define PNPIPE_ENCAP		1
     40#define PNPIPE_IFINDEX		2
     41#define PNPIPE_HANDLE		3
     42#define PNPIPE_INITSTATE	4
     43
     44#define PNADDR_ANY		0
     45#define PNADDR_BROADCAST	0xFC
     46#define PNPORT_RESOURCE_ROUTING	0
     47
     48/* Values for PNPIPE_ENCAP option */
     49#define PNPIPE_ENCAP_NONE	0
     50#define PNPIPE_ENCAP_IP		1
     51
     52/* ioctls */
     53#define SIOCPNGETOBJECT		(SIOCPROTOPRIVATE + 0)
     54#define SIOCPNENABLEPIPE	(SIOCPROTOPRIVATE + 13)
     55#define SIOCPNADDRESOURCE	(SIOCPROTOPRIVATE + 14)
     56#define SIOCPNDELRESOURCE	(SIOCPROTOPRIVATE + 15)
     57
     58/* Phonet protocol header */
     59struct phonethdr {
     60	__u8	pn_rdev;
     61	__u8	pn_sdev;
     62	__u8	pn_res;
     63	__be16	pn_length;
     64	__u8	pn_robj;
     65	__u8	pn_sobj;
     66} __attribute__((packed));
     67
     68/* Common Phonet payload header */
     69struct phonetmsg {
     70	__u8	pn_trans_id;	/* transaction ID */
     71	__u8	pn_msg_id;	/* message type */
     72	union {
     73		struct {
     74			__u8	pn_submsg_id;	/* message subtype */
     75			__u8	pn_data[5];
     76		} base;
     77		struct {
     78			__u16	pn_e_res_id;	/* extended resource ID */
     79			__u8	pn_e_submsg_id;	/* message subtype */
     80			__u8	pn_e_data[3];
     81		} ext;
     82	} pn_msg_u;
     83};
     84#define PN_COMMON_MESSAGE	0xF0
     85#define PN_COMMGR		0x10
     86#define PN_PREFIX		0xE0 /* resource for extended messages */
     87#define pn_submsg_id		pn_msg_u.base.pn_submsg_id
     88#define pn_e_submsg_id		pn_msg_u.ext.pn_e_submsg_id
     89#define pn_e_res_id		pn_msg_u.ext.pn_e_res_id
     90#define pn_data			pn_msg_u.base.pn_data
     91#define pn_e_data		pn_msg_u.ext.pn_e_data
     92
     93/* data for unreachable errors */
     94#define PN_COMM_SERVICE_NOT_IDENTIFIED_RESP	0x01
     95#define PN_COMM_ISA_ENTITY_NOT_REACHABLE_RESP	0x14
     96#define pn_orig_msg_id		pn_data[0]
     97#define pn_status		pn_data[1]
     98#define pn_e_orig_msg_id	pn_e_data[0]
     99#define pn_e_status		pn_e_data[1]
    100
    101/* Phonet socket address structure */
    102struct sockaddr_pn {
    103	__kernel_sa_family_t spn_family;
    104	__u8 spn_obj;
    105	__u8 spn_dev;
    106	__u8 spn_resource;
    107	__u8 spn_zero[sizeof(struct sockaddr) - sizeof(__kernel_sa_family_t) - 3];
    108} __attribute__((packed));
    109
    110/* Well known address */
    111#define PN_DEV_PC	0x10
    112
    113static inline __u16 pn_object(__u8 addr, __u16 port)
    114{
    115	return (addr << 8) | (port & 0x3ff);
    116}
    117
    118static inline __u8 pn_obj(__u16 handle)
    119{
    120	return handle & 0xff;
    121}
    122
    123static inline __u8 pn_dev(__u16 handle)
    124{
    125	return handle >> 8;
    126}
    127
    128static inline __u16 pn_port(__u16 handle)
    129{
    130	return handle & 0x3ff;
    131}
    132
    133static inline __u8 pn_addr(__u16 handle)
    134{
    135	return (handle >> 8) & 0xfc;
    136}
    137
    138static inline void pn_sockaddr_set_addr(struct sockaddr_pn *spn, __u8 addr)
    139{
    140	spn->spn_dev &= 0x03;
    141	spn->spn_dev |= addr & 0xfc;
    142}
    143
    144static inline void pn_sockaddr_set_port(struct sockaddr_pn *spn, __u16 port)
    145{
    146	spn->spn_dev &= 0xfc;
    147	spn->spn_dev |= (port >> 8) & 0x03;
    148	spn->spn_obj = port & 0xff;
    149}
    150
    151static inline void pn_sockaddr_set_object(struct sockaddr_pn *spn,
    152						__u16 handle)
    153{
    154	spn->spn_dev = pn_dev(handle);
    155	spn->spn_obj = pn_obj(handle);
    156}
    157
    158static inline void pn_sockaddr_set_resource(struct sockaddr_pn *spn,
    159						__u8 resource)
    160{
    161	spn->spn_resource = resource;
    162}
    163
    164static inline __u8 pn_sockaddr_get_addr(const struct sockaddr_pn *spn)
    165{
    166	return spn->spn_dev & 0xfc;
    167}
    168
    169static inline __u16 pn_sockaddr_get_port(const struct sockaddr_pn *spn)
    170{
    171	return ((spn->spn_dev & 0x03) << 8) | spn->spn_obj;
    172}
    173
    174static inline __u16 pn_sockaddr_get_object(const struct sockaddr_pn *spn)
    175{
    176	return pn_object(spn->spn_dev, spn->spn_obj);
    177}
    178
    179static inline __u8 pn_sockaddr_get_resource(const struct sockaddr_pn *spn)
    180{
    181	return spn->spn_resource;
    182}
    183
    184/* Phonet device ioctl requests */
    185
    186#endif /* _UAPILINUX_PHONET_H */