[deliverable/linux.git] / include / uapi / linux / if_pppox.h

/***************************************************************************
 * Linux PPP over X - Generic PPP transport layer sockets
 * Linux PPP over Ethernet (PPPoE) Socket Implementation (RFC 2516) 
 *
 * This file supplies definitions required by the PPP over Ethernet driver
 * (pppox.c).  All version information wrt this file is located in pppox.c
 *
 * License:
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 *
 */

#ifndef _UAPI__LINUX_IF_PPPOX_H
#define _UAPI__LINUX_IF_PPPOX_H


#include <linux/types.h>
#include <asm/byteorder.h>

#include <linux/socket.h>
#include <linux/if.h>
#include <linux/if_ether.h>
#include <linux/if_pppol2tp.h>
#include <linux/in.h>
#include <linux/in6.h>

/* For user-space programs to pick up these definitions
 * which they wouldn't get otherwise without defining __KERNEL__
 */
#ifndef AF_PPPOX
#define AF_PPPOX	24
#define PF_PPPOX	AF_PPPOX
#endif /* !(AF_PPPOX) */

/************************************************************************ 
 * PPPoE addressing definition 
 */ 
typedef __be16 sid_t;
struct pppoe_addr {
	sid_t         sid;                    /* Session identifier */
	unsigned char remote[ETH_ALEN];       /* Remote address */
	char          dev[IFNAMSIZ];          /* Local device to use */
}; 
 
/************************************************************************ 
 * PPTP addressing definition
 */
struct pptp_addr {
	__u16		call_id;
	struct in_addr	sin_addr;
};

/************************************************************************
 * Protocols supported by AF_PPPOX
 */
#define PX_PROTO_OE    0 /* Currently just PPPoE */
#define PX_PROTO_OL2TP 1 /* Now L2TP also */
#define PX_PROTO_PPTP  2
#define PX_MAX_PROTO   3

struct sockaddr_pppox {
	__kernel_sa_family_t sa_family;       /* address family, AF_PPPOX */
	unsigned int    sa_protocol;          /* protocol identifier */
	union {
		struct pppoe_addr  pppoe;
		struct pptp_addr   pptp;
	} sa_addr;
} __packed;

/* The use of the above union isn't viable because the size of this
 * struct must stay fixed over time -- applications use sizeof(struct
 * sockaddr_pppox) to fill it. We use a protocol specific sockaddr
 * type instead.
 */
struct sockaddr_pppol2tp {
	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
	unsigned int    sa_protocol;    /* protocol identifier */
	struct pppol2tp_addr pppol2tp;
} __packed;

struct sockaddr_pppol2tpin6 {
	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
	unsigned int    sa_protocol;    /* protocol identifier */
	struct pppol2tpin6_addr pppol2tp;
} __packed;

/* The L2TPv3 protocol changes tunnel and session ids from 16 to 32
 * bits. So we need a different sockaddr structure.
 */
struct sockaddr_pppol2tpv3 {
	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
	unsigned int    sa_protocol;    /* protocol identifier */
	struct pppol2tpv3_addr pppol2tp;
} __packed;

struct sockaddr_pppol2tpv3in6 {
	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
	unsigned int    sa_protocol;    /* protocol identifier */
	struct pppol2tpv3in6_addr pppol2tp;
} __packed;

/*********************************************************************
 *
 * ioctl interface for defining forwarding of connections
 *
 ********************************************************************/

#define PPPOEIOCSFWD	_IOW(0xB1 ,0, size_t)
#define PPPOEIOCDFWD	_IO(0xB1 ,1)
/*#define PPPOEIOCGFWD	_IOWR(0xB1,2, size_t)*/

/* Codes to identify message types */
#define PADI_CODE	0x09
#define PADO_CODE	0x07
#define PADR_CODE	0x19
#define PADS_CODE	0x65
#define PADT_CODE	0xa7
struct pppoe_tag {
	__be16 tag_type;
	__be16 tag_len;
	char tag_data[0];
} __attribute__ ((packed));

/* Tag identifiers */
#define PTT_EOL		__cpu_to_be16(0x0000)
#define PTT_SRV_NAME	__cpu_to_be16(0x0101)
#define PTT_AC_NAME	__cpu_to_be16(0x0102)
#define PTT_HOST_UNIQ	__cpu_to_be16(0x0103)
#define PTT_AC_COOKIE	__cpu_to_be16(0x0104)
#define PTT_VENDOR 	__cpu_to_be16(0x0105)
#define PTT_RELAY_SID	__cpu_to_be16(0x0110)
#define PTT_SRV_ERR     __cpu_to_be16(0x0201)
#define PTT_SYS_ERR  	__cpu_to_be16(0x0202)
#define PTT_GEN_ERR  	__cpu_to_be16(0x0203)

struct pppoe_hdr {
#if defined(__LITTLE_ENDIAN_BITFIELD)
	__u8 type : 4;
	__u8 ver : 4;
#elif defined(__BIG_ENDIAN_BITFIELD)
	__u8 ver : 4;
	__u8 type : 4;
#else
#error	"Please fix <asm/byteorder.h>"
#endif
	__u8 code;
	__be16 sid;
	__be16 length;
	struct pppoe_tag tag[0];
} __packed;

/* Length of entire PPPoE + PPP header */
#define PPPOE_SES_HLEN	8


#endif /* _UAPI__LINUX_IF_PPPOX_H */
Commit	Line	Data
607ca46e DH	1	/***************************************************************************
	2	* Linux PPP over X - Generic PPP transport layer sockets
	3	* Linux PPP over Ethernet (PPPoE) Socket Implementation (RFC 2516)
	4	*
	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
	7	*
	8	* License:
	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.
	13	*
	14	*/
	15
	16	#ifndef _UAPI__LINUX_IF_PPPOX_H
	17	#define _UAPI__LINUX_IF_PPPOX_H
	18
	19
	20	#include <linux/types.h>
	21	#include <asm/byteorder.h>
	22
	23	#include <linux/socket.h>
b47b0cc7	24	#include <linux/if.h>
607ca46e DH	25	#include <linux/if_ether.h>
607ca46e DH	26	#include <linux/if_pppol2tp.h>
eafe9211 MR	27	#include <linux/in.h>
eafe9211 MR	28	#include <linux/in6.h>
607ca46e DH	29
	30	/* For user-space programs to pick up these definitions
	31	* which they wouldn't get otherwise without defining __KERNEL__
	32	*/
	33	#ifndef AF_PPPOX
	34	#define AF_PPPOX 24
	35	#define PF_PPPOX AF_PPPOX
	36	#endif /* !(AF_PPPOX) */
	37
	38	/************************************************************************
	39	* PPPoE addressing definition
	40	*/
	41	typedef __be16 sid_t;
	42	struct pppoe_addr {
	43	sid_t sid; /* Session identifier */
	44	unsigned char remote[ETH_ALEN]; /* Remote address */
	45	char dev[IFNAMSIZ]; /* Local device to use */
	46	};
	47
	48	/************************************************************************
	49	* PPTP addressing definition
	50	*/
	51	struct pptp_addr {
ebd8b934	52	__u16 call_id;
607ca46e DH	53	struct in_addr sin_addr;
	54	};
	55
	56	/************************************************************************
	57	* Protocols supported by AF_PPPOX
	58	*/
	59	#define PX_PROTO_OE 0 /* Currently just PPPoE */
	60	#define PX_PROTO_OL2TP 1 /* Now L2TP also */
	61	#define PX_PROTO_PPTP 2
	62	#define PX_MAX_PROTO 3
	63
	64	struct sockaddr_pppox {
	65	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
	66	unsigned int sa_protocol; /* protocol identifier */
	67	union {
	68	struct pppoe_addr pppoe;
	69	struct pptp_addr pptp;
	70	} sa_addr;
	71	} __packed;
	72
	73	/* The use of the above union isn't viable because the size of this
	74	* struct must stay fixed over time -- applications use sizeof(struct
	75	* sockaddr_pppox) to fill it. We use a protocol specific sockaddr
	76	* type instead.
	77	*/
	78	struct sockaddr_pppol2tp {
	79	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
	80	unsigned int sa_protocol; /* protocol identifier */
	81	struct pppol2tp_addr pppol2tp;
	82	} __packed;
	83
	84	struct sockaddr_pppol2tpin6 {
	85	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
	86	unsigned int sa_protocol; /* protocol identifier */
	87	struct pppol2tpin6_addr pppol2tp;
	88	} __packed;
	89
	90	/* The L2TPv3 protocol changes tunnel and session ids from 16 to 32
	91	* bits. So we need a different sockaddr structure.
	92	*/
	93	struct sockaddr_pppol2tpv3 {
	94	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
	95	unsigned int sa_protocol; /* protocol identifier */
	96	struct pppol2tpv3_addr pppol2tp;
	97	} __packed;
	98
	99	struct sockaddr_pppol2tpv3in6 {
	100	__kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
	101	unsigned int sa_protocol; /* protocol identifier */
	102	struct pppol2tpv3in6_addr pppol2tp;
	103	} __packed;
	104
	105	/*********************************************************************
	106	*
	107	* ioctl interface for defining forwarding of connections
	108	*
	109	********************************************************************/
	110
	111	#define PPPOEIOCSFWD _IOW(0xB1 ,0, size_t)
	112	#define PPPOEIOCDFWD _IO(0xB1 ,1)
	113	/#define PPPOEIOCGFWD _IOWR(0xB1,2, size_t)/
	114
	115	/* Codes to identify message types */
	116	#define PADI_CODE 0x09
117	#define PADO_CODE 0x07
118	#define PADR_CODE 0x19
119	#define PADS_CODE 0x65
120	#define PADT_CODE 0xa7
121	struct pppoe_tag {
122	__be16 tag_type;
123	__be16 tag_len;
124	char tag_data[0];
125	} __attribute__ ((packed));
126
127	/* Tag identifiers */
128	#define PTT_EOL __cpu_to_be16(0x0000)
129	#define PTT_SRV_NAME __cpu_to_be16(0x0101)
130	#define PTT_AC_NAME __cpu_to_be16(0x0102)
131	#define PTT_HOST_UNIQ __cpu_to_be16(0x0103)
132	#define PTT_AC_COOKIE __cpu_to_be16(0x0104)
133	#define PTT_VENDOR __cpu_to_be16(0x0105)
134	#define PTT_RELAY_SID __cpu_to_be16(0x0110)
135	#define PTT_SRV_ERR __cpu_to_be16(0x0201)
136	#define PTT_SYS_ERR __cpu_to_be16(0x0202)
137	#define PTT_GEN_ERR __cpu_to_be16(0x0203)
138
139	struct pppoe_hdr {
140	#if defined(__LITTLE_ENDIAN_BITFIELD)
607ca46e	141	__u8 type : 4;
b1a5a34b	142	__u8 ver : 4;
607ca46e	143	#elif defined(__BIG_ENDIAN_BITFIELD)
607ca46e	144	__u8 ver : 4;
b1a5a34b	145	__u8 type : 4;
607ca46e DH	146	#else
	147	#error "Please fix <asm/byteorder.h>"
	148	#endif
	149	__u8 code;
	150	__be16 sid;
	151	__be16 length;
	152	struct pppoe_tag tag[0];
	153	} __packed;
	154
	155	/* Length of entire PPPoE + PPP header */
	156	#define PPPOE_SES_HLEN 8
	157
	158
	159	#endif /* _UAPI__LINUX_IF_PPPOX_H */