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bce7b154 RDC |
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 LINUX_PHONET_H | |
24 | #define LINUX_PHONET_H | |
25 | ||
26 | /* Automatic protocol selection */ | |
27 | #define PN_PROTO_TRANSPORT 0 | |
28 | /* Phonet datagram socket */ | |
29 | #define PN_PROTO_PHONET 1 | |
9641458d RDC |
30 | /* Phonet pipe */ |
31 | #define PN_PROTO_PIPE 2 | |
32 | #define PHONET_NPROTO 3 | |
bce7b154 RDC |
33 | |
34 | #define PNADDR_ANY 0 | |
35 | #define PNPORT_RESOURCE_ROUTING 0 | |
36 | ||
ba113a94 RDC |
37 | /* ioctls */ |
38 | #define SIOCPNGETOBJECT (SIOCPROTOPRIVATE + 0) | |
39 | ||
bce7b154 RDC |
40 | /* Phonet protocol header */ |
41 | struct phonethdr { | |
42 | __u8 pn_rdev; | |
43 | __u8 pn_sdev; | |
44 | __u8 pn_res; | |
45 | __be16 pn_length; | |
46 | __u8 pn_robj; | |
47 | __u8 pn_sobj; | |
48 | } __attribute__((packed)); | |
49 | ||
be0c52bf RDC |
50 | /* Common Phonet payload header */ |
51 | struct phonetmsg { | |
52 | __u8 pn_trans_id; /* transaction ID */ | |
53 | __u8 pn_msg_id; /* message type */ | |
54 | union { | |
55 | struct { | |
56 | __u8 pn_submsg_id; /* message subtype */ | |
57 | __u8 pn_data[5]; | |
58 | } base; | |
59 | struct { | |
60 | __u16 pn_e_res_id; /* extended resource ID */ | |
61 | __u8 pn_e_submsg_id; /* message subtype */ | |
62 | __u8 pn_e_data[3]; | |
63 | } ext; | |
64 | } pn_msg_u; | |
65 | }; | |
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 | |
73 | ||
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] | |
81 | ||
bce7b154 RDC |
82 | /* Phonet socket address structure */ |
83 | struct sockaddr_pn { | |
84 | sa_family_t spn_family; | |
85 | __u8 spn_obj; | |
86 | __u8 spn_dev; | |
87 | __u8 spn_resource; | |
88 | __u8 spn_zero[sizeof(struct sockaddr) - sizeof(sa_family_t) - 3]; | |
89 | } __attribute__ ((packed)); | |
90 | ||
91 | static inline __u16 pn_object(__u8 addr, __u16 port) | |
92 | { | |
93 | return (addr << 8) | (port & 0x3ff); | |
94 | } | |
95 | ||
96 | static inline __u8 pn_obj(__u16 handle) | |
97 | { | |
98 | return handle & 0xff; | |
99 | } | |
100 | ||
101 | static inline __u8 pn_dev(__u16 handle) | |
102 | { | |
103 | return handle >> 8; | |
104 | } | |
105 | ||
106 | static inline __u16 pn_port(__u16 handle) | |
107 | { | |
108 | return handle & 0x3ff; | |
109 | } | |
110 | ||
111 | static inline __u8 pn_addr(__u16 handle) | |
112 | { | |
113 | return (handle >> 8) & 0xfc; | |
114 | } | |
115 | ||
116 | static inline void pn_sockaddr_set_addr(struct sockaddr_pn *spn, __u8 addr) | |
117 | { | |
118 | spn->spn_dev &= 0x03; | |
119 | spn->spn_dev |= addr & 0xfc; | |
120 | } | |
121 | ||
122 | static inline void pn_sockaddr_set_port(struct sockaddr_pn *spn, __u16 port) | |
123 | { | |
124 | spn->spn_dev &= 0xfc; | |
125 | spn->spn_dev |= (port >> 8) & 0x03; | |
126 | spn->spn_obj = port & 0xff; | |
127 | } | |
128 | ||
129 | static inline void pn_sockaddr_set_object(struct sockaddr_pn *spn, | |
130 | __u16 handle) | |
131 | { | |
132 | spn->spn_dev = pn_dev(handle); | |
133 | spn->spn_obj = pn_obj(handle); | |
134 | } | |
135 | ||
136 | static inline void pn_sockaddr_set_resource(struct sockaddr_pn *spn, | |
137 | __u8 resource) | |
138 | { | |
139 | spn->spn_resource = resource; | |
140 | } | |
141 | ||
142 | static inline __u8 pn_sockaddr_get_addr(const struct sockaddr_pn *spn) | |
143 | { | |
144 | return spn->spn_dev & 0xfc; | |
145 | } | |
146 | ||
147 | static inline __u16 pn_sockaddr_get_port(const struct sockaddr_pn *spn) | |
148 | { | |
149 | return ((spn->spn_dev & 0x03) << 8) | spn->spn_obj; | |
150 | } | |
151 | ||
152 | static inline __u16 pn_sockaddr_get_object(const struct sockaddr_pn *spn) | |
153 | { | |
154 | return pn_object(spn->spn_dev, spn->spn_obj); | |
155 | } | |
156 | ||
157 | static inline __u8 pn_sockaddr_get_resource(const struct sockaddr_pn *spn) | |
158 | { | |
159 | return spn->spn_resource; | |
160 | } | |
161 | ||
162 | #endif |