| /** |
| * file phonet.h |
| * |
| * Phonet sockets kernel interface |
| * |
| * Copyright (C) 2008 Nokia Corporation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * version 2 as published by the Free Software Foundation. |
| * |
| * 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, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| * 02110-1301 USA |
| */ |
| |
| #ifndef LINUX_PHONET_H |
| #define LINUX_PHONET_H |
| |
| #include <linux/types.h> |
| |
| /* Automatic protocol selection */ |
| #define PN_PROTO_TRANSPORT 0 |
| /* Phonet datagram socket */ |
| #define PN_PROTO_PHONET 1 |
| /* Phonet pipe */ |
| #define PN_PROTO_PIPE 2 |
| #define PHONET_NPROTO 3 |
| |
| /* Socket options for SOL_PNPIPE level */ |
| #define PNPIPE_ENCAP 1 |
| #define PNPIPE_IFINDEX 2 |
| |
| #define PNADDR_ANY 0 |
| #define PNPORT_RESOURCE_ROUTING 0 |
| |
| /* Values for PNPIPE_ENCAP option */ |
| #define PNPIPE_ENCAP_NONE 0 |
| #define PNPIPE_ENCAP_IP 1 |
| |
| /* ioctls */ |
| #define SIOCPNGETOBJECT (SIOCPROTOPRIVATE + 0) |
| |
| /* Phonet protocol header */ |
| struct phonethdr { |
| __u8 pn_rdev; |
| __u8 pn_sdev; |
| __u8 pn_res; |
| __be16 pn_length; |
| __u8 pn_robj; |
| __u8 pn_sobj; |
| } __attribute__((packed)); |
| |
| /* Common Phonet payload header */ |
| struct phonetmsg { |
| __u8 pn_trans_id; /* transaction ID */ |
| __u8 pn_msg_id; /* message type */ |
| union { |
| struct { |
| __u8 pn_submsg_id; /* message subtype */ |
| __u8 pn_data[5]; |
| } base; |
| struct { |
| __u16 pn_e_res_id; /* extended resource ID */ |
| __u8 pn_e_submsg_id; /* message subtype */ |
| __u8 pn_e_data[3]; |
| } ext; |
| } pn_msg_u; |
| }; |
| #define PN_COMMON_MESSAGE 0xF0 |
| #define PN_COMMGR 0x10 |
| #define PN_PREFIX 0xE0 /* resource for extended messages */ |
| #define pn_submsg_id pn_msg_u.base.pn_submsg_id |
| #define pn_e_submsg_id pn_msg_u.ext.pn_e_submsg_id |
| #define pn_e_res_id pn_msg_u.ext.pn_e_res_id |
| #define pn_data pn_msg_u.base.pn_data |
| #define pn_e_data pn_msg_u.ext.pn_e_data |
| |
| /* data for unreachable errors */ |
| #define PN_COMM_SERVICE_NOT_IDENTIFIED_RESP 0x01 |
| #define PN_COMM_ISA_ENTITY_NOT_REACHABLE_RESP 0x14 |
| #define pn_orig_msg_id pn_data[0] |
| #define pn_status pn_data[1] |
| #define pn_e_orig_msg_id pn_e_data[0] |
| #define pn_e_status pn_e_data[1] |
| |
| /* Phonet socket address structure */ |
| struct sockaddr_pn { |
| sa_family_t spn_family; |
| __u8 spn_obj; |
| __u8 spn_dev; |
| __u8 spn_resource; |
| __u8 spn_zero[sizeof(struct sockaddr) - sizeof(sa_family_t) - 3]; |
| } __attribute__ ((packed)); |
| |
| static __inline__ __u16 pn_object(__u8 addr, __u16 port) |
| { |
| return (addr << 8) | (port & 0x3ff); |
| } |
| |
| static __inline__ __u8 pn_obj(__u16 handle) |
| { |
| return handle & 0xff; |
| } |
| |
| static __inline__ __u8 pn_dev(__u16 handle) |
| { |
| return handle >> 8; |
| } |
| |
| static __inline__ __u16 pn_port(__u16 handle) |
| { |
| return handle & 0x3ff; |
| } |
| |
| static __inline__ __u8 pn_addr(__u16 handle) |
| { |
| return (handle >> 8) & 0xfc; |
| } |
| |
| static __inline__ void pn_sockaddr_set_addr(struct sockaddr_pn *spn, __u8 addr) |
| { |
| spn->spn_dev &= 0x03; |
| spn->spn_dev |= addr & 0xfc; |
| } |
| |
| static __inline__ void pn_sockaddr_set_port(struct sockaddr_pn *spn, __u16 port) |
| { |
| spn->spn_dev &= 0xfc; |
| spn->spn_dev |= (port >> 8) & 0x03; |
| spn->spn_obj = port & 0xff; |
| } |
| |
| static __inline__ void pn_sockaddr_set_object(struct sockaddr_pn *spn, |
| __u16 handle) |
| { |
| spn->spn_dev = pn_dev(handle); |
| spn->spn_obj = pn_obj(handle); |
| } |
| |
| static __inline__ void pn_sockaddr_set_resource(struct sockaddr_pn *spn, |
| __u8 resource) |
| { |
| spn->spn_resource = resource; |
| } |
| |
| static __inline__ __u8 pn_sockaddr_get_addr(const struct sockaddr_pn *spn) |
| { |
| return spn->spn_dev & 0xfc; |
| } |
| |
| static __inline__ __u16 pn_sockaddr_get_port(const struct sockaddr_pn *spn) |
| { |
| return ((spn->spn_dev & 0x03) << 8) | spn->spn_obj; |
| } |
| |
| static __inline__ __u16 pn_sockaddr_get_object(const struct sockaddr_pn *spn) |
| { |
| return pn_object(spn->spn_dev, spn->spn_obj); |
| } |
| |
| static __inline__ __u8 pn_sockaddr_get_resource(const struct sockaddr_pn *spn) |
| { |
| return spn->spn_resource; |
| } |
| |
| #endif |