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