1 /***************************************************************************
2 * Linux PPP over X - Generic PPP transport layer sockets
3 * Linux PPP over Ethernet (PPPoE) Socket Implementation (RFC 2516)
5 * This file supplies definitions required by the PPP over Ethernet driver
6 * (pppox.c). All version information wrt this file is located in pppox.c
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
15 #ifndef __LINUX_IF_PPPOX_H
16 #define __LINUX_IF_PPPOX_H
19 #include <linux/netdevice.h>
20 #include <linux/ppp_channel.h>
21 #include <linux/skbuff.h>
22 #include <uapi/linux/if_pppox.h>
24 static inline struct pppoe_hdr
*pppoe_hdr(const struct sk_buff
*skb
)
26 return (struct pppoe_hdr
*)skb_network_header(skb
);
30 struct net_device
*dev
; /* device associated with socket*/
31 int ifindex
; /* ifindex of device associated with socket */
32 struct pppoe_addr pa
; /* what this socket is bound to*/
33 struct sockaddr_pppox relay
; /* what socket data will be
34 relayed to (PPPoE relaying) */
38 struct pptp_addr src_addr
;
39 struct pptp_addr dst_addr
;
40 u32 ack_sent
, ack_recv
;
41 u32 seq_sent
, seq_recv
;
47 /* struct sock must be the first member of pppox_sock */
49 struct ppp_channel chan
;
50 struct pppox_sock
*next
; /* for hash table */
52 struct pppoe_opt pppoe
;
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
62 static inline struct pppox_sock
*pppox_sk(struct sock
*sk
)
64 return (struct pppox_sock
*)sk
;
67 static inline struct sock
*sk_pppox(struct pppox_sock
*po
)
69 return (struct sock
*)po
;
75 int (*create
)(struct net
*net
, struct socket
*sock
);
76 int (*ioctl
)(struct socket
*sock
, unsigned int cmd
,
81 extern int register_pppox_proto(int proto_num
, const struct pppox_proto
*pp
);
82 extern void unregister_pppox_proto(int proto_num
);
83 extern void pppox_unbind_sock(struct sock
*sk
);/* delete ppp-channel binding */
84 extern int pppox_ioctl(struct socket
*sock
, unsigned int cmd
, unsigned long arg
);
86 /* PPPoX socket states */
88 PPPOX_NONE
= 0, /* initial state */
89 PPPOX_CONNECTED
= 1, /* connection established ==TCP_ESTABLISHED */
90 PPPOX_BOUND
= 2, /* bound to ppp device */
91 PPPOX_RELAY
= 4, /* forwarding is enabled */
92 PPPOX_ZOMBIE
= 8, /* dead, but still bound to ppp device */
93 PPPOX_DEAD
= 16 /* dead, useless, please clean me up!*/
96 #endif /* !(__LINUX_IF_PPPOX_H) */
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