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1/*
2 * File: af_phonet.h
3 *
4 * Phonet sockets kernel definitions
5 *
6 * Copyright (C) 2008 Nokia Corporation.
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 AF_PHONET_H
24#define AF_PHONET_H
25
26/*
27 * The lower layers may not require more space, ever. Make sure it's
28 * enough.
29 */
30#define MAX_PHONET_HEADER (8 + MAX_HEADER)
31
32/*
33 * Every Phonet* socket has this structure first in its
34 * protocol-specific structure under name c.
35 */
36struct pn_sock {
37 struct sock sk;
38 u16 sobject;
39 u16 dobject;
40 u8 resource;
41};
42
43static inline struct pn_sock *pn_sk(struct sock *sk)
44{
45 return (struct pn_sock *)sk;
46}
47
48extern const struct proto_ops phonet_dgram_ops;
49
50void pn_sock_init(void);
51struct sock *pn_find_sock_by_sa(struct net *net, const struct sockaddr_pn *sa);
52void pn_deliver_sock_broadcast(struct net *net, struct sk_buff *skb);
53void phonet_get_local_port_range(int *min, int *max);
54void pn_sock_hash(struct sock *sk);
55void pn_sock_unhash(struct sock *sk);
56int pn_sock_get_port(struct sock *sk, unsigned short sport);
57
58struct sock *pn_find_sock_by_res(struct net *net, u8 res);
59int pn_sock_bind_res(struct sock *sock, u8 res);
60int pn_sock_unbind_res(struct sock *sk, u8 res);
61void pn_sock_unbind_all_res(struct sock *sk);
62
63int pn_skb_send(struct sock *sk, struct sk_buff *skb,
64 const struct sockaddr_pn *target);
65
66static inline struct phonethdr *pn_hdr(struct sk_buff *skb)
67{
68 return (struct phonethdr *)skb_network_header(skb);
69}
70
71static inline struct phonetmsg *pn_msg(struct sk_buff *skb)
72{
73 return (struct phonetmsg *)skb_transport_header(skb);
74}
75
76/*
77 * Get the other party's sockaddr from received skb. The skb begins
78 * with a Phonet header.
79 */
80static inline
81void pn_skb_get_src_sockaddr(struct sk_buff *skb, struct sockaddr_pn *sa)
82{
83 struct phonethdr *ph = pn_hdr(skb);
84 u16 obj = pn_object(ph->pn_sdev, ph->pn_sobj);
85
86 sa->spn_family = AF_PHONET;
87 pn_sockaddr_set_object(sa, obj);
88 pn_sockaddr_set_resource(sa, ph->pn_res);
89 memset(sa->spn_zero, 0, sizeof(sa->spn_zero));
90}
91
92static inline
93void pn_skb_get_dst_sockaddr(struct sk_buff *skb, struct sockaddr_pn *sa)
94{
95 struct phonethdr *ph = pn_hdr(skb);
96 u16 obj = pn_object(ph->pn_rdev, ph->pn_robj);
97
98 sa->spn_family = AF_PHONET;
99 pn_sockaddr_set_object(sa, obj);
100 pn_sockaddr_set_resource(sa, ph->pn_res);
101 memset(sa->spn_zero, 0, sizeof(sa->spn_zero));
102}
103
104/* Protocols in Phonet protocol family. */
105struct phonet_protocol {
106 const struct proto_ops *ops;
107 struct proto *prot;
108 int sock_type;
109};
110
111int phonet_proto_register(unsigned int protocol, struct phonet_protocol *pp);
112void phonet_proto_unregister(unsigned int protocol, struct phonet_protocol *pp);
113
114int phonet_sysctl_init(void);
115void phonet_sysctl_exit(void);
116int isi_register(void);
117void isi_unregister(void);
118
119#endif
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * File: af_phonet.h
4 *
5 * Phonet sockets kernel definitions
6 *
7 * Copyright (C) 2008 Nokia Corporation.
8 */
9
10#ifndef AF_PHONET_H
11#define AF_PHONET_H
12
13/*
14 * The lower layers may not require more space, ever. Make sure it's
15 * enough.
16 */
17#define MAX_PHONET_HEADER (8 + MAX_HEADER)
18
19/*
20 * Every Phonet* socket has this structure first in its
21 * protocol-specific structure under name c.
22 */
23struct pn_sock {
24 struct sock sk;
25 u16 sobject;
26 u16 dobject;
27 u8 resource;
28};
29
30static inline struct pn_sock *pn_sk(struct sock *sk)
31{
32 return (struct pn_sock *)sk;
33}
34
35extern const struct proto_ops phonet_dgram_ops;
36
37void pn_sock_init(void);
38struct sock *pn_find_sock_by_sa(struct net *net, const struct sockaddr_pn *sa);
39void pn_deliver_sock_broadcast(struct net *net, struct sk_buff *skb);
40void phonet_get_local_port_range(int *min, int *max);
41int pn_sock_hash(struct sock *sk);
42void pn_sock_unhash(struct sock *sk);
43int pn_sock_get_port(struct sock *sk, unsigned short sport);
44
45struct sock *pn_find_sock_by_res(struct net *net, u8 res);
46int pn_sock_bind_res(struct sock *sock, u8 res);
47int pn_sock_unbind_res(struct sock *sk, u8 res);
48void pn_sock_unbind_all_res(struct sock *sk);
49
50int pn_skb_send(struct sock *sk, struct sk_buff *skb,
51 const struct sockaddr_pn *target);
52
53static inline struct phonethdr *pn_hdr(struct sk_buff *skb)
54{
55 return (struct phonethdr *)skb_network_header(skb);
56}
57
58static inline struct phonetmsg *pn_msg(struct sk_buff *skb)
59{
60 return (struct phonetmsg *)skb_transport_header(skb);
61}
62
63/*
64 * Get the other party's sockaddr from received skb. The skb begins
65 * with a Phonet header.
66 */
67static inline
68void pn_skb_get_src_sockaddr(struct sk_buff *skb, struct sockaddr_pn *sa)
69{
70 struct phonethdr *ph = pn_hdr(skb);
71 u16 obj = pn_object(ph->pn_sdev, ph->pn_sobj);
72
73 sa->spn_family = AF_PHONET;
74 pn_sockaddr_set_object(sa, obj);
75 pn_sockaddr_set_resource(sa, ph->pn_res);
76 memset(sa->spn_zero, 0, sizeof(sa->spn_zero));
77}
78
79static inline
80void pn_skb_get_dst_sockaddr(struct sk_buff *skb, struct sockaddr_pn *sa)
81{
82 struct phonethdr *ph = pn_hdr(skb);
83 u16 obj = pn_object(ph->pn_rdev, ph->pn_robj);
84
85 sa->spn_family = AF_PHONET;
86 pn_sockaddr_set_object(sa, obj);
87 pn_sockaddr_set_resource(sa, ph->pn_res);
88 memset(sa->spn_zero, 0, sizeof(sa->spn_zero));
89}
90
91/* Protocols in Phonet protocol family. */
92struct phonet_protocol {
93 const struct proto_ops *ops;
94 struct proto *prot;
95 int sock_type;
96};
97
98int phonet_proto_register(unsigned int protocol,
99 const struct phonet_protocol *pp);
100void phonet_proto_unregister(unsigned int protocol,
101 const struct phonet_protocol *pp);
102
103int phonet_sysctl_init(void);
104void phonet_sysctl_exit(void);
105int isi_register(void);
106void isi_unregister(void);
107
108#endif