4 * Phonet sockets kernel interface
6 * Copyright (C) 2008 Nokia Corporation. All rights reserved.
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.
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.
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
23 #ifndef LINUX_PHONET_H
24 #define LINUX_PHONET_H
26 /* Automatic protocol selection */
27 #define PN_PROTO_TRANSPORT 0
28 /* Phonet datagram socket */
29 #define PN_PROTO_PHONET 1
31 #define PN_PROTO_PIPE 2
32 #define PHONET_NPROTO 3
35 #define PNPORT_RESOURCE_ROUTING 0
38 #define SIOCPNGETOBJECT (SIOCPROTOPRIVATE + 0)
40 /* Phonet protocol header */
48 } __attribute__((packed));
50 /* Common Phonet payload header */
52 __u8 pn_trans_id; /* transaction ID */
53 __u8 pn_msg_id; /* message type */
56 __u8 pn_submsg_id; /* message subtype */
60 __u16 pn_e_res_id; /* extended resource ID */
61 __u8 pn_e_submsg_id; /* message subtype */
66 #define PN_COMMON_MESSAGE 0xF0
67 #define PN_PREFIX 0xE0 /* resource for extended messages */
68 #define pn_submsg_id pn_msg_u.base.pn_submsg_id
69 #define pn_e_submsg_id pn_msg_u.ext.pn_e_submsg_id
70 #define pn_e_res_id pn_msg_u.ext.pn_e_res_id
71 #define pn_data pn_msg_u.base.pn_data
72 #define pn_e_data pn_msg_u.ext.pn_e_data
74 /* data for unreachable errors */
75 #define PN_COMM_SERVICE_NOT_IDENTIFIED_RESP 0x01
76 #define PN_COMM_ISA_ENTITY_NOT_REACHABLE_RESP 0x14
77 #define pn_orig_msg_id pn_data[0]
78 #define pn_status pn_data[1]
79 #define pn_e_orig_msg_id pn_e_data[0]
80 #define pn_e_status pn_e_data[1]
82 /* Phonet socket address structure */
84 sa_family_t spn_family;
88 __u8 spn_zero[sizeof(struct sockaddr) - sizeof(sa_family_t) - 3];
89 } __attribute__ ((packed));
91 static inline __u16 pn_object(__u8 addr, __u16 port)
93 return (addr << 8) | (port & 0x3ff);
96 static inline __u8 pn_obj(__u16 handle)
101 static inline __u8 pn_dev(__u16 handle)
106 static inline __u16 pn_port(__u16 handle)
108 return handle & 0x3ff;
111 static inline __u8 pn_addr(__u16 handle)
113 return (handle >> 8) & 0xfc;
116 static inline void pn_sockaddr_set_addr(struct sockaddr_pn *spn, __u8 addr)
118 spn->spn_dev &= 0x03;
119 spn->spn_dev |= addr & 0xfc;
122 static inline void pn_sockaddr_set_port(struct sockaddr_pn *spn, __u16 port)
124 spn->spn_dev &= 0xfc;
125 spn->spn_dev |= (port >> 8) & 0x03;
126 spn->spn_obj = port & 0xff;
129 static inline void pn_sockaddr_set_object(struct sockaddr_pn *spn,
132 spn->spn_dev = pn_dev(handle);
133 spn->spn_obj = pn_obj(handle);
136 static inline void pn_sockaddr_set_resource(struct sockaddr_pn *spn,
139 spn->spn_resource = resource;
142 static inline __u8 pn_sockaddr_get_addr(const struct sockaddr_pn *spn)
144 return spn->spn_dev & 0xfc;
147 static inline __u16 pn_sockaddr_get_port(const struct sockaddr_pn *spn)
149 return ((spn->spn_dev & 0x03) << 8) | spn->spn_obj;
152 static inline __u16 pn_sockaddr_get_object(const struct sockaddr_pn *spn)
154 return pn_object(spn->spn_dev, spn->spn_obj);
157 static inline __u8 pn_sockaddr_get_resource(const struct sockaddr_pn *spn)
159 return spn->spn_resource;