Commit | Line | Data |
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2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 LT |
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: | |
1da177e4 | 10 | */ |
1da177e4 LT |
11 | #ifndef __LINUX_IF_PPPOX_H |
12 | #define __LINUX_IF_PPPOX_H | |
13 | ||
1da177e4 LT |
14 | #include <linux/if.h> |
15 | #include <linux/netdevice.h> | |
1da177e4 | 16 | #include <linux/ppp_channel.h> |
797659fb | 17 | #include <linux/skbuff.h> |
287f3a94 | 18 | #include <linux/workqueue.h> |
607ca46e | 19 | #include <uapi/linux/if_pppox.h> |
797659fb ACM |
20 | |
21 | static inline struct pppoe_hdr *pppoe_hdr(const struct sk_buff *skb) | |
22 | { | |
d56f90a7 | 23 | return (struct pppoe_hdr *)skb_network_header(skb); |
797659fb ACM |
24 | } |
25 | ||
1da177e4 LT |
26 | struct pppoe_opt { |
27 | struct net_device *dev; /* device associated with socket*/ | |
6f30e186 | 28 | int ifindex; /* ifindex of device associated with socket */ |
1da177e4 LT |
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) */ | |
287f3a94 | 32 | struct work_struct padt_work;/* Work item for handling PADT */ |
1da177e4 LT |
33 | }; |
34 | ||
00959ade DK |
35 | struct 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 | }; | |
1da177e4 LT |
42 | #include <net/sock.h> |
43 | ||
44 | struct pppox_sock { | |
45 | /* struct sock must be the first member of pppox_sock */ | |
00959ade DK |
46 | struct sock sk; |
47 | struct ppp_channel chan; | |
1da177e4 LT |
48 | struct pppox_sock *next; /* for hash table */ |
49 | union { | |
50 | struct pppoe_opt pppoe; | |
00959ade | 51 | struct pptp_opt pptp; |
1da177e4 | 52 | } proto; |
b963dc1d | 53 | __be16 num; |
1da177e4 LT |
54 | }; |
55 | #define pppoe_dev proto.pppoe.dev | |
6f30e186 | 56 | #define pppoe_ifindex proto.pppoe.ifindex |
1da177e4 LT |
57 | #define pppoe_pa proto.pppoe.pa |
58 | #define pppoe_relay proto.pppoe.relay | |
59 | ||
60 | static inline struct pppox_sock *pppox_sk(struct sock *sk) | |
61 | { | |
62 | return (struct pppox_sock *)sk; | |
63 | } | |
64 | ||
65 | static inline struct sock *sk_pppox(struct pppox_sock *po) | |
66 | { | |
67 | return (struct sock *)po; | |
68 | } | |
69 | ||
70 | struct module; | |
71 | ||
72 | struct pppox_proto { | |
11aa9c28 | 73 | int (*create)(struct net *net, struct socket *sock, int kern); |
1da177e4 LT |
74 | int (*ioctl)(struct socket *sock, unsigned int cmd, |
75 | unsigned long arg); | |
76 | struct module *owner; | |
77 | }; | |
78 | ||
756e64a0 | 79 | extern int register_pppox_proto(int proto_num, const struct pppox_proto *pp); |
1da177e4 LT |
80 | extern void unregister_pppox_proto(int proto_num); |
81 | extern void pppox_unbind_sock(struct sock *sk);/* delete ppp-channel binding */ | |
17ba15fb | 82 | extern int pppox_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); |
055d8824 AB |
83 | extern int pppox_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); |
84 | ||
85 | #define PPPOEIOCSFWD32 _IOW(0xB1 ,0, compat_size_t) | |
1da177e4 LT |
86 | |
87 | /* PPPoX socket states */ | |
88 | enum { | |
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 */ | |
1da177e4 LT |
93 | PPPOX_DEAD = 16 /* dead, useless, please clean me up!*/ |
94 | }; | |
95 | ||
1da177e4 | 96 | #endif /* !(__LINUX_IF_PPPOX_H) */ |