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94 lines
2.8 KiB
94 lines
2.8 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/*************************************************************************** |
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* Linux PPP over X - Generic PPP transport layer sockets |
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* Linux PPP over Ethernet (PPPoE) Socket Implementation (RFC 2516) |
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* |
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* This file supplies definitions required by the PPP over Ethernet driver |
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* (pppox.c). All version information wrt this file is located in pppox.c |
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*/ |
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#ifndef __LINUX_IF_PPPOX_H |
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#define __LINUX_IF_PPPOX_H |
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#include <linux/if.h> |
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#include <linux/netdevice.h> |
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#include <linux/ppp_channel.h> |
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#include <linux/skbuff.h> |
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#include <linux/workqueue.h> |
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#include <uapi/linux/if_pppox.h> |
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static inline struct pppoe_hdr *pppoe_hdr(const struct sk_buff *skb) |
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{ |
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return (struct pppoe_hdr *)skb_network_header(skb); |
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} |
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struct pppoe_opt { |
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struct net_device *dev; /* device associated with socket*/ |
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int ifindex; /* ifindex of device associated with socket */ |
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struct pppoe_addr pa; /* what this socket is bound to*/ |
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struct sockaddr_pppox relay; /* what socket data will be |
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relayed to (PPPoE relaying) */ |
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struct work_struct padt_work;/* Work item for handling PADT */ |
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}; |
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struct pptp_opt { |
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struct pptp_addr src_addr; |
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struct pptp_addr dst_addr; |
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u32 ack_sent, ack_recv; |
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u32 seq_sent, seq_recv; |
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int ppp_flags; |
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}; |
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#include <net/sock.h> |
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struct pppox_sock { |
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/* struct sock must be the first member of pppox_sock */ |
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struct sock sk; |
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struct ppp_channel chan; |
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struct pppox_sock *next; /* for hash table */ |
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union { |
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struct pppoe_opt pppoe; |
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struct pptp_opt pptp; |
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} proto; |
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__be16 num; |
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}; |
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#define pppoe_dev proto.pppoe.dev |
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#define pppoe_ifindex proto.pppoe.ifindex |
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#define pppoe_pa proto.pppoe.pa |
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#define pppoe_relay proto.pppoe.relay |
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static inline struct pppox_sock *pppox_sk(struct sock *sk) |
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{ |
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return (struct pppox_sock *)sk; |
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} |
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static inline struct sock *sk_pppox(struct pppox_sock *po) |
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{ |
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return (struct sock *)po; |
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} |
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struct module; |
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struct pppox_proto { |
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int (*create)(struct net *net, struct socket *sock, int kern); |
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int (*ioctl)(struct socket *sock, unsigned int cmd, |
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unsigned long arg); |
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struct module *owner; |
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}; |
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extern int register_pppox_proto(int proto_num, const struct pppox_proto *pp); |
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extern void unregister_pppox_proto(int proto_num); |
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extern void pppox_unbind_sock(struct sock *sk);/* delete ppp-channel binding */ |
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extern int pppox_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); |
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extern int pppox_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); |
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#define PPPOEIOCSFWD32 _IOW(0xB1 ,0, compat_size_t) |
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/* PPPoX socket states */ |
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enum { |
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PPPOX_NONE = 0, /* initial state */ |
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PPPOX_CONNECTED = 1, /* connection established ==TCP_ESTABLISHED */ |
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PPPOX_BOUND = 2, /* bound to ppp device */ |
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PPPOX_RELAY = 4, /* forwarding is enabled */ |
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PPPOX_DEAD = 16 /* dead, useless, please clean me up!*/ |
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}; |
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#endif /* !(__LINUX_IF_PPPOX_H) */
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