---

---

---

001: /**
002:  * file phonet.h
003:  *
004:  * Phonet sockets kernel interface
005:  *
006:  * Copyright (C) 2008 Nokia Corporation. All rights reserved.
007:  *
008:  * This program is free software; you can redistribute it and/or
009:  * modify it under the terms of the GNU General Public License
010:  * version 2 as published by the Free Software Foundation.
011:  *
012:  * This program is distributed in the hope that it will be useful, but
013:  * WITHOUT ANY WARRANTY; without even the implied warranty of
014:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
015:  * General Public License for more details.
016:  *
017:  * You should have received a copy of the GNU General Public License
018:  * along with this program; if not, write to the Free Software
019:  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020:  * 02110-1301 USA
021:  */
022: 
023: #ifndef LINUX_PHONET_H
024: #define LINUX_PHONET_H
025: 
026: #include <linux/types.h>
027: #include <linux/socket.h>
028: 
029: /* Automatic protocol selection */
030: #define PN_PROTO_TRANSPORT      0
031: /* Phonet datagram socket */
032: #define PN_PROTO_PHONET         1
033: /* Phonet pipe */
034: #define PN_PROTO_PIPE           2
035: #define PHONET_NPROTO           3
036: 
037: /* Socket options for SOL_PNPIPE level */
038: #define PNPIPE_ENCAP            1
039: #define PNPIPE_IFINDEX          2
040: #define PNPIPE_HANDLE           3
041: 
042: #define PNADDR_ANY              0
043: #define PNADDR_BROADCAST        0xFC
044: #define PNPORT_RESOURCE_ROUTING 0
045: 
046: /* Values for PNPIPE_ENCAP option */
047: #define PNPIPE_ENCAP_NONE       0
048: #define PNPIPE_ENCAP_IP         1
049: 
050: /* ioctls */
051: #define SIOCPNGETOBJECT         (SIOCPROTOPRIVATE + 0)
052: #define SIOCPNADDRESOURCE       (SIOCPROTOPRIVATE + 14)
053: #define SIOCPNDELRESOURCE       (SIOCPROTOPRIVATE + 15)
054: 
055: /* Phonet protocol header */
056: struct phonethdr {
057:         __u8    pn_rdev;
058:         __u8    pn_sdev;
059:         __u8    pn_res;
060:         __be16  pn_length;
061:         __u8    pn_robj;
062:         __u8    pn_sobj;
063: } __attribute__((packed));
064: 
065: /* Common Phonet payload header */
066: struct phonetmsg {
067:         __u8    pn_trans_id;    /* transaction ID */
068:         __u8    pn_msg_id;      /* message type */
069:         union {
070:                 struct {
071:                         __u8    pn_submsg_id;   /* message subtype */
072:                         __u8    pn_data[5];
073:                 } base;
074:                 struct {
075:                         __u16   pn_e_res_id;    /* extended resource ID */
076:                         __u8    pn_e_submsg_id; /* message subtype */
077:                         __u8    pn_e_data[3];
078:                 } ext;
079:         } pn_msg_u;
080: };
081: #define PN_COMMON_MESSAGE       0xF0
082: #define PN_COMMGR               0x10
083: #define PN_PREFIX               0xE0 /* resource for extended messages */
084: #define pn_submsg_id            pn_msg_u.base.pn_submsg_id
085: #define pn_e_submsg_id          pn_msg_u.ext.pn_e_submsg_id
086: #define pn_e_res_id             pn_msg_u.ext.pn_e_res_id
087: #define pn_data                 pn_msg_u.base.pn_data
088: #define pn_e_data               pn_msg_u.ext.pn_e_data
089: 
090: /* data for unreachable errors */
091: #define PN_COMM_SERVICE_NOT_IDENTIFIED_RESP     0x01
092: #define PN_COMM_ISA_ENTITY_NOT_REACHABLE_RESP   0x14
093: #define pn_orig_msg_id          pn_data[0]
094: #define pn_status               pn_data[1]
095: #define pn_e_orig_msg_id        pn_e_data[0]
096: #define pn_e_status             pn_e_data[1]
097: 
098: /* Phonet socket address structure */
099: struct sockaddr_pn {
100:         __kernel_sa_family_t spn_family;
101:         __u8 spn_obj;
102:         __u8 spn_dev;
103:         __u8 spn_resource;
104:         __u8 spn_zero[sizeof(struct sockaddr) - sizeof(__kernel_sa_family_t) - 3];
105: } __attribute__((packed));
106: 
107: /* Well known address */
108: #define PN_DEV_PC       0x10
109: 
110: static __inline__ __u16 pn_object(__u8 addr, __u16 port)
111: {
112:         return (addr << 8) | (port & 0x3ff);
113: }
114: 
115: static __inline__ __u8 pn_obj(__u16 handle)
116: {
117:         return handle & 0xff;
118: }
119: 
120: static __inline__ __u8 pn_dev(__u16 handle)
121: {
122:         return handle >> 8;
123: }
124: 
125: static __inline__ __u16 pn_port(__u16 handle)
126: {
127:         return handle & 0x3ff;
128: }
129: 
130: static __inline__ __u8 pn_addr(__u16 handle)
131: {
132:         return (handle >> 8) & 0xfc;
133: }
134: 
135: static __inline__ void pn_sockaddr_set_addr(struct sockaddr_pn *spn, __u8 addr)
136: {
137:         spn->spn_dev &= 0x03;
138:         spn->spn_dev |= addr & 0xfc;
139: }
140: 
141: static __inline__ void pn_sockaddr_set_port(struct sockaddr_pn *spn, __u16 port)
142: {
143:         spn->spn_dev &= 0xfc;
144:         spn->spn_dev |= (port >> 8) & 0x03;
145:         spn->spn_obj = port & 0xff;
146: }
147: 
148: static __inline__ void pn_sockaddr_set_object(struct sockaddr_pn *spn,
149:                                                 __u16 handle)
150: {
151:         spn->spn_dev = pn_dev(handle);
152:         spn->spn_obj = pn_obj(handle);
153: }
154: 
155: static __inline__ void pn_sockaddr_set_resource(struct sockaddr_pn *spn,
156:                                                 __u8 resource)
157: {
158:         spn->spn_resource = resource;
159: }
160: 
161: static __inline__ __u8 pn_sockaddr_get_addr(const struct sockaddr_pn *spn)
162: {
163:         return spn->spn_dev & 0xfc;
164: }
165: 
166: static __inline__ __u16 pn_sockaddr_get_port(const struct sockaddr_pn *spn)
167: {
168:         return ((spn->spn_dev & 0x03) << 8) | spn->spn_obj;
169: }
170: 
171: static __inline__ __u16 pn_sockaddr_get_object(const struct sockaddr_pn *spn)
172: {
173:         return pn_object(spn->spn_dev, spn->spn_obj);
174: }
175: 
176: static __inline__ __u8 pn_sockaddr_get_resource(const struct sockaddr_pn *spn)
177: {
178:         return spn->spn_resource;
179: }
180: 
181: /* Phonet device ioctl requests */
182: 
183: #endif
184: 

---

---

---