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15#ifndef __LINUX_IF_PPPOX_H
16#define __LINUX_IF_PPPOX_H
17
18#include <linux/if.h>
19#include <linux/netdevice.h>
20#include <linux/ppp_channel.h>
21#include <linux/skbuff.h>
22#include <uapi/linux/if_pppox.h>
23
24static inline struct pppoe_hdr *pppoe_hdr(const struct sk_buff *skb)
25{
26 return (struct pppoe_hdr *)skb_network_header(skb);
27}
28
29struct pppoe_opt {
30 struct net_device *dev;
31 int ifindex;
32 struct pppoe_addr pa;
33 struct sockaddr_pppox relay;
34
35};
36
37struct pptp_opt {
38 struct pptp_addr src_addr;
39 struct pptp_addr dst_addr;
40 u32 ack_sent, ack_recv;
41 u32 seq_sent, seq_recv;
42 int ppp_flags;
43};
44#include <net/sock.h>
45
46struct pppox_sock {
47
48 struct sock sk;
49 struct ppp_channel chan;
50 struct pppox_sock *next;
51 union {
52 struct pppoe_opt pppoe;
53 struct pptp_opt pptp;
54 } proto;
55 __be16 num;
56};
57#define pppoe_dev proto.pppoe.dev
58#define pppoe_ifindex proto.pppoe.ifindex
59#define pppoe_pa proto.pppoe.pa
60#define pppoe_relay proto.pppoe.relay
61
62static inline struct pppox_sock *pppox_sk(struct sock *sk)
63{
64 return (struct pppox_sock *)sk;
65}
66
67static inline struct sock *sk_pppox(struct pppox_sock *po)
68{
69 return (struct sock *)po;
70}
71
72struct module;
73
74struct pppox_proto {
75 int (*create)(struct net *net, struct socket *sock);
76 int (*ioctl)(struct socket *sock, unsigned int cmd,
77 unsigned long arg);
78 struct module *owner;
79};
80
81extern int register_pppox_proto(int proto_num, const struct pppox_proto *pp);
82extern void unregister_pppox_proto(int proto_num);
83extern void pppox_unbind_sock(struct sock *sk);
84extern int pppox_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
85
86
87enum {
88 PPPOX_NONE = 0,
89 PPPOX_CONNECTED = 1,
90 PPPOX_BOUND = 2,
91 PPPOX_RELAY = 4,
92 PPPOX_ZOMBIE = 8,
93 PPPOX_DEAD = 16
94};
95
96#endif
97