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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/***************************************************************************
3 * Linux PPP over X - Generic PPP transport layer sockets
4 * Linux PPP over Ethernet (PPPoE) Socket Implementation (RFC 2516)
5 *
6 * This file supplies definitions required by the PPP over Ethernet driver
7 * (pppox.c). All version information wrt this file is located in pppox.c
8 *
9 * License:
10 */
11#ifndef __LINUX_IF_PPPOX_H
12#define __LINUX_IF_PPPOX_H
13
14#include <linux/if.h>
15#include <linux/netdevice.h>
16#include <linux/ppp_channel.h>
17#include <linux/skbuff.h>
18#include <linux/workqueue.h>
19#include <uapi/linux/if_pppox.h>
20
21static inline struct pppoe_hdr *pppoe_hdr(const struct sk_buff *skb)
22{
23 return (struct pppoe_hdr *)skb_network_header(skb);
24}
25
26struct pppoe_opt {
27 struct net_device *dev; /* device associated with socket*/
28 int ifindex; /* ifindex of device associated with socket */
29 struct pppoe_addr pa; /* what this socket is bound to*/
30 struct sockaddr_pppox relay; /* what socket data will be
31 relayed to (PPPoE relaying) */
32 struct work_struct padt_work;/* Work item for handling PADT */
33};
34
35struct pptp_opt {
36 struct pptp_addr src_addr;
37 struct pptp_addr dst_addr;
38 u32 ack_sent, ack_recv;
39 u32 seq_sent, seq_recv;
40 int ppp_flags;
41};
42#include <net/sock.h>
43
44struct pppox_sock {
45 /* struct sock must be the first member of pppox_sock */
46 struct sock sk;
47 struct ppp_channel chan;
48 struct pppox_sock *next; /* for hash table */
49 union {
50 struct pppoe_opt pppoe;
51 struct pptp_opt pptp;
52 } proto;
53 __be16 num;
54};
55#define pppoe_dev proto.pppoe.dev
56#define pppoe_ifindex proto.pppoe.ifindex
57#define pppoe_pa proto.pppoe.pa
58#define pppoe_relay proto.pppoe.relay
59
60static inline struct pppox_sock *pppox_sk(struct sock *sk)
61{
62 return (struct pppox_sock *)sk;
63}
64
65static inline struct sock *sk_pppox(struct pppox_sock *po)
66{
67 return (struct sock *)po;
68}
69
70struct module;
71
72struct pppox_proto {
73 int (*create)(struct net *net, struct socket *sock, int kern);
74 int (*ioctl)(struct socket *sock, unsigned int cmd,
75 unsigned long arg);
76 struct module *owner;
77};
78
79extern int register_pppox_proto(int proto_num, const struct pppox_proto *pp);
80extern void unregister_pppox_proto(int proto_num);
81extern void pppox_unbind_sock(struct sock *sk);/* delete ppp-channel binding */
82extern int pppox_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
83extern int pppox_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
84
85#define PPPOEIOCSFWD32 _IOW(0xB1 ,0, compat_size_t)
86
87/* PPPoX socket states */
88enum {
89 PPPOX_NONE = 0, /* initial state */
90 PPPOX_CONNECTED = 1, /* connection established ==TCP_ESTABLISHED */
91 PPPOX_BOUND = 2, /* bound to ppp device */
92 PPPOX_RELAY = 4, /* forwarding is enabled */
93 PPPOX_DEAD = 16 /* dead, useless, please clean me up!*/
94};
95
96#endif /* !(__LINUX_IF_PPPOX_H) */
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/***************************************************************************
3 * Linux PPP over X - Generic PPP transport layer sockets
4 * Linux PPP over Ethernet (PPPoE) Socket Implementation (RFC 2516)
5 *
6 * This file supplies definitions required by the PPP over Ethernet driver
7 * (pppox.c). All version information wrt this file is located in pppox.c
8 */
9#ifndef __LINUX_IF_PPPOX_H
10#define __LINUX_IF_PPPOX_H
11
12#include <linux/if.h>
13#include <linux/netdevice.h>
14#include <linux/ppp_channel.h>
15#include <linux/skbuff.h>
16#include <linux/workqueue.h>
17#include <uapi/linux/if_pppox.h>
18
19static inline struct pppoe_hdr *pppoe_hdr(const struct sk_buff *skb)
20{
21 return (struct pppoe_hdr *)skb_network_header(skb);
22}
23
24struct pppoe_opt {
25 struct net_device *dev; /* device associated with socket*/
26 int ifindex; /* ifindex of device associated with socket */
27 struct pppoe_addr pa; /* what this socket is bound to*/
28 struct sockaddr_pppox relay; /* what socket data will be
29 relayed to (PPPoE relaying) */
30 struct work_struct padt_work;/* Work item for handling PADT */
31};
32
33struct pptp_opt {
34 struct pptp_addr src_addr;
35 struct pptp_addr dst_addr;
36 u32 ack_sent, ack_recv;
37 u32 seq_sent, seq_recv;
38 int ppp_flags;
39};
40#include <net/sock.h>
41
42struct pppox_sock {
43 /* struct sock must be the first member of pppox_sock */
44 struct sock sk;
45 struct ppp_channel chan;
46 struct pppox_sock *next; /* for hash table */
47 union {
48 struct pppoe_opt pppoe;
49 struct pptp_opt pptp;
50 } proto;
51 __be16 num;
52};
53#define pppoe_dev proto.pppoe.dev
54#define pppoe_ifindex proto.pppoe.ifindex
55#define pppoe_pa proto.pppoe.pa
56#define pppoe_relay proto.pppoe.relay
57
58static inline struct pppox_sock *pppox_sk(struct sock *sk)
59{
60 return (struct pppox_sock *)sk;
61}
62
63static inline struct sock *sk_pppox(struct pppox_sock *po)
64{
65 return (struct sock *)po;
66}
67
68struct module;
69
70struct pppox_proto {
71 int (*create)(struct net *net, struct socket *sock, int kern);
72 int (*ioctl)(struct socket *sock, unsigned int cmd,
73 unsigned long arg);
74 struct module *owner;
75};
76
77extern int register_pppox_proto(int proto_num, const struct pppox_proto *pp);
78extern void unregister_pppox_proto(int proto_num);
79extern void pppox_unbind_sock(struct sock *sk);/* delete ppp-channel binding */
80extern int pppox_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
81extern int pppox_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
82
83#define PPPOEIOCSFWD32 _IOW(0xB1 ,0, compat_size_t)
84
85/* PPPoX socket states */
86enum {
87 PPPOX_NONE = 0, /* initial state */
88 PPPOX_CONNECTED = 1, /* connection established ==TCP_ESTABLISHED */
89 PPPOX_BOUND = 2, /* bound to ppp device */
90 PPPOX_RELAY = 4, /* forwarding is enabled */
91 PPPOX_DEAD = 16 /* dead, useless, please clean me up!*/
92};
93
94#endif /* !(__LINUX_IF_PPPOX_H) */