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186 lines
4.5 KiB
186 lines
4.5 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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/** |
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* file phonet.h |
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* |
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* Phonet sockets kernel interface |
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* |
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* Copyright (C) 2008 Nokia Corporation. All rights reserved. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* version 2 as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
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* 02110-1301 USA |
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*/ |
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#ifndef _UAPILINUX_PHONET_H |
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#define _UAPILINUX_PHONET_H |
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#include <linux/types.h> |
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#include <linux/socket.h> |
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/* Automatic protocol selection */ |
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#define PN_PROTO_TRANSPORT 0 |
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/* Phonet datagram socket */ |
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#define PN_PROTO_PHONET 1 |
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/* Phonet pipe */ |
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#define PN_PROTO_PIPE 2 |
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#define PHONET_NPROTO 3 |
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/* Socket options for SOL_PNPIPE level */ |
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#define PNPIPE_ENCAP 1 |
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#define PNPIPE_IFINDEX 2 |
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#define PNPIPE_HANDLE 3 |
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#define PNPIPE_INITSTATE 4 |
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#define PNADDR_ANY 0 |
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#define PNADDR_BROADCAST 0xFC |
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#define PNPORT_RESOURCE_ROUTING 0 |
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/* Values for PNPIPE_ENCAP option */ |
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#define PNPIPE_ENCAP_NONE 0 |
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#define PNPIPE_ENCAP_IP 1 |
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/* ioctls */ |
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#define SIOCPNGETOBJECT (SIOCPROTOPRIVATE + 0) |
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#define SIOCPNENABLEPIPE (SIOCPROTOPRIVATE + 13) |
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#define SIOCPNADDRESOURCE (SIOCPROTOPRIVATE + 14) |
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#define SIOCPNDELRESOURCE (SIOCPROTOPRIVATE + 15) |
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/* Phonet protocol header */ |
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struct phonethdr { |
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__u8 pn_rdev; |
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__u8 pn_sdev; |
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__u8 pn_res; |
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__be16 pn_length; |
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__u8 pn_robj; |
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__u8 pn_sobj; |
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} __attribute__((packed)); |
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/* Common Phonet payload header */ |
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struct phonetmsg { |
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__u8 pn_trans_id; /* transaction ID */ |
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__u8 pn_msg_id; /* message type */ |
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union { |
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struct { |
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__u8 pn_submsg_id; /* message subtype */ |
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__u8 pn_data[5]; |
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} base; |
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struct { |
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__u16 pn_e_res_id; /* extended resource ID */ |
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__u8 pn_e_submsg_id; /* message subtype */ |
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__u8 pn_e_data[3]; |
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} ext; |
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} pn_msg_u; |
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}; |
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#define PN_COMMON_MESSAGE 0xF0 |
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#define PN_COMMGR 0x10 |
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#define PN_PREFIX 0xE0 /* resource for extended messages */ |
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#define pn_submsg_id pn_msg_u.base.pn_submsg_id |
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#define pn_e_submsg_id pn_msg_u.ext.pn_e_submsg_id |
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#define pn_e_res_id pn_msg_u.ext.pn_e_res_id |
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#define pn_data pn_msg_u.base.pn_data |
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#define pn_e_data pn_msg_u.ext.pn_e_data |
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/* data for unreachable errors */ |
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#define PN_COMM_SERVICE_NOT_IDENTIFIED_RESP 0x01 |
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#define PN_COMM_ISA_ENTITY_NOT_REACHABLE_RESP 0x14 |
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#define pn_orig_msg_id pn_data[0] |
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#define pn_status pn_data[1] |
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#define pn_e_orig_msg_id pn_e_data[0] |
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#define pn_e_status pn_e_data[1] |
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/* Phonet socket address structure */ |
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struct sockaddr_pn { |
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__kernel_sa_family_t spn_family; |
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__u8 spn_obj; |
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__u8 spn_dev; |
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__u8 spn_resource; |
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__u8 spn_zero[sizeof(struct sockaddr) - sizeof(__kernel_sa_family_t) - 3]; |
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} __attribute__((packed)); |
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/* Well known address */ |
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#define PN_DEV_PC 0x10 |
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static inline __u16 pn_object(__u8 addr, __u16 port) |
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{ |
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return (addr << 8) | (port & 0x3ff); |
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} |
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static inline __u8 pn_obj(__u16 handle) |
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{ |
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return handle & 0xff; |
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} |
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static inline __u8 pn_dev(__u16 handle) |
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{ |
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return handle >> 8; |
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} |
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static inline __u16 pn_port(__u16 handle) |
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{ |
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return handle & 0x3ff; |
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} |
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static inline __u8 pn_addr(__u16 handle) |
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{ |
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return (handle >> 8) & 0xfc; |
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} |
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static inline void pn_sockaddr_set_addr(struct sockaddr_pn *spn, __u8 addr) |
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{ |
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spn->spn_dev &= 0x03; |
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spn->spn_dev |= addr & 0xfc; |
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} |
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static inline void pn_sockaddr_set_port(struct sockaddr_pn *spn, __u16 port) |
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{ |
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spn->spn_dev &= 0xfc; |
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spn->spn_dev |= (port >> 8) & 0x03; |
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spn->spn_obj = port & 0xff; |
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} |
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static inline void pn_sockaddr_set_object(struct sockaddr_pn *spn, |
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__u16 handle) |
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{ |
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spn->spn_dev = pn_dev(handle); |
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spn->spn_obj = pn_obj(handle); |
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} |
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static inline void pn_sockaddr_set_resource(struct sockaddr_pn *spn, |
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__u8 resource) |
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{ |
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spn->spn_resource = resource; |
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} |
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static inline __u8 pn_sockaddr_get_addr(const struct sockaddr_pn *spn) |
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{ |
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return spn->spn_dev & 0xfc; |
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} |
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static inline __u16 pn_sockaddr_get_port(const struct sockaddr_pn *spn) |
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{ |
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return ((spn->spn_dev & 0x03) << 8) | spn->spn_obj; |
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} |
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static inline __u16 pn_sockaddr_get_object(const struct sockaddr_pn *spn) |
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{ |
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return pn_object(spn->spn_dev, spn->spn_obj); |
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} |
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static inline __u8 pn_sockaddr_get_resource(const struct sockaddr_pn *spn) |
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{ |
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return spn->spn_resource; |
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} |
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/* Phonet device ioctl requests */ |
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#endif /* _UAPILINUX_PHONET_H */
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