[mirror_ubuntu-bionic-kernel.git] / include / uapi / linux / if_pppol2tp.h

/***************************************************************************
 * Linux PPP over L2TP (PPPoL2TP) Socket Implementation (RFC 2661)
 *
 * This file supplies definitions required by the PPP over L2TP driver
 * (l2tp_ppp.c).  All version information wrt this file is located in l2tp_ppp.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_PPPOL2TP_H
#define _UAPI__LINUX_IF_PPPOL2TP_H

#include <linux/types.h>
#include <linux/in.h>
#include <linux/in6.h>
#include <linux/l2tp.h>

/* Structure used to connect() the socket to a particular tunnel UDP
 * socket over IPv4.
 */
struct pppol2tp_addr {
	__kernel_pid_t	pid;		/* pid that owns the fd.
					 * 0 => current */
	int	fd;			/* FD of UDP socket to use */

	struct sockaddr_in addr;	/* IP address and port to send to */

	__u16 s_tunnel, s_session;	/* For matching incoming packets */
	__u16 d_tunnel, d_session;	/* For sending outgoing packets */
};

/* Structure used to connect() the socket to a particular tunnel UDP
 * socket over IPv6.
 */
struct pppol2tpin6_addr {
	__kernel_pid_t	pid;		/* pid that owns the fd.
					 * 0 => current */
	int	fd;			/* FD of UDP socket to use */

	__u16 s_tunnel, s_session;	/* For matching incoming packets */
	__u16 d_tunnel, d_session;	/* For sending outgoing packets */

	struct sockaddr_in6 addr;	/* IP address and port to send to */
};

/* The L2TPv3 protocol changes tunnel and session ids from 16 to 32
 * bits. So we need a different sockaddr structure.
 */
struct pppol2tpv3_addr {
	__kernel_pid_t	pid;		/* pid that owns the fd.
					 * 0 => current */
	int	fd;			/* FD of UDP or IP socket to use */

	struct sockaddr_in addr;	/* IP address and port to send to */

	__u32 s_tunnel, s_session;	/* For matching incoming packets */
	__u32 d_tunnel, d_session;	/* For sending outgoing packets */
};

struct pppol2tpv3in6_addr {
	__kernel_pid_t	pid;		/* pid that owns the fd.
					 * 0 => current */
	int	fd;			/* FD of UDP or IP socket to use */

	__u32 s_tunnel, s_session;	/* For matching incoming packets */
	__u32 d_tunnel, d_session;	/* For sending outgoing packets */

	struct sockaddr_in6 addr;	/* IP address and port to send to */
};

/* Socket options:
 * DEBUG	- bitmask of debug message categories
 * SENDSEQ	- 0 => don't send packets with sequence numbers
 *		  1 => send packets with sequence numbers
 * RECVSEQ	- 0 => receive packet sequence numbers are optional
 *		  1 => drop receive packets without sequence numbers
 * LNSMODE	- 0 => act as LAC.
 *		  1 => act as LNS.
 * REORDERTO	- reorder timeout (in millisecs). If 0, don't try to reorder.
 */
enum {
	PPPOL2TP_SO_DEBUG	= 1,
	PPPOL2TP_SO_RECVSEQ	= 2,
	PPPOL2TP_SO_SENDSEQ	= 3,
	PPPOL2TP_SO_LNSMODE	= 4,
	PPPOL2TP_SO_REORDERTO	= 5,
};

/* Debug message categories for the DEBUG socket option (deprecated) */
enum {
	PPPOL2TP_MSG_DEBUG	= L2TP_MSG_DEBUG,
	PPPOL2TP_MSG_CONTROL	= L2TP_MSG_CONTROL,
	PPPOL2TP_MSG_SEQ	= L2TP_MSG_SEQ,
	PPPOL2TP_MSG_DATA	= L2TP_MSG_DATA,
};


#endif /* _UAPI__LINUX_IF_PPPOL2TP_H */
Commit	Line	Data
607ca46e DH	1	/***************************************************************************
	2	* Linux PPP over L2TP (PPPoL2TP) Socket Implementation (RFC 2661)
	3	*
	4	* This file supplies definitions required by the PPP over L2TP driver
	5	* (l2tp_ppp.c). All version information wrt this file is located in l2tp_ppp.c
	6	*
	7	* License:
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License
	10	* as published by the Free Software Foundation; either version
	11	* 2 of the License, or (at your option) any later version.
	12	*
	13	*/
	14
	15	#ifndef _UAPI__LINUX_IF_PPPOL2TP_H
	16	#define _UAPI__LINUX_IF_PPPOL2TP_H
	17
	18	#include <linux/types.h>
05ee5de7 MR	19	#include <linux/in.h>
05ee5de7 MR	20	#include <linux/in6.h>
47c3e778	21	#include <linux/l2tp.h>
607ca46e DH	22
	23	/* Structure used to connect() the socket to a particular tunnel UDP
	24	* socket over IPv4.
	25	*/
	26	struct pppol2tp_addr {
	27	__kernel_pid_t pid; /* pid that owns the fd.
	28	* 0 => current */
	29	int fd; /* FD of UDP socket to use */
	30
	31	struct sockaddr_in addr; /* IP address and port to send to */
	32
	33	__u16 s_tunnel, s_session; /* For matching incoming packets */
	34	__u16 d_tunnel, d_session; /* For sending outgoing packets */
	35	};
	36
	37	/* Structure used to connect() the socket to a particular tunnel UDP
	38	* socket over IPv6.
	39	*/
	40	struct pppol2tpin6_addr {
	41	__kernel_pid_t pid; /* pid that owns the fd.
	42	* 0 => current */
	43	int fd; /* FD of UDP socket to use */
	44
	45	__u16 s_tunnel, s_session; /* For matching incoming packets */
	46	__u16 d_tunnel, d_session; /* For sending outgoing packets */
	47
	48	struct sockaddr_in6 addr; /* IP address and port to send to */
	49	};
	50
	51	/* The L2TPv3 protocol changes tunnel and session ids from 16 to 32
	52	* bits. So we need a different sockaddr structure.
	53	*/
	54	struct pppol2tpv3_addr {
	55	__kernel_pid_t pid; /* pid that owns the fd.
	56	* 0 => current */
	57	int fd; /* FD of UDP or IP socket to use */
	58
	59	struct sockaddr_in addr; /* IP address and port to send to */
	60
	61	__u32 s_tunnel, s_session; /* For matching incoming packets */
	62	__u32 d_tunnel, d_session; /* For sending outgoing packets */
	63	};
	64
	65	struct pppol2tpv3in6_addr {
	66	__kernel_pid_t pid; /* pid that owns the fd.
	67	* 0 => current */
	68	int fd; /* FD of UDP or IP socket to use */
	69
	70	__u32 s_tunnel, s_session; /* For matching incoming packets */
	71	__u32 d_tunnel, d_session; /* For sending outgoing packets */
	72
	73	struct sockaddr_in6 addr; /* IP address and port to send to */
	74	};
	75
	76	/* Socket options:
	77	* DEBUG - bitmask of debug message categories
	78	* SENDSEQ - 0 => don't send packets with sequence numbers
	79	* 1 => send packets with sequence numbers
	80	* RECVSEQ - 0 => receive packet sequence numbers are optional
	81	* 1 => drop receive packets without sequence numbers
	82	* LNSMODE - 0 => act as LAC.
	83	* 1 => act as LNS.
	84	* REORDERTO - reorder timeout (in millisecs). If 0, don't try to reorder.
	85	*/
86	enum {
87	PPPOL2TP_SO_DEBUG = 1,
88	PPPOL2TP_SO_RECVSEQ = 2,
89	PPPOL2TP_SO_SENDSEQ = 3,
90	PPPOL2TP_SO_LNSMODE = 4,
91	PPPOL2TP_SO_REORDERTO = 5,
92	};
93
47c3e778	94	/* Debug message categories for the DEBUG socket option (deprecated) */
607ca46e	95	enum {
47c3e778 AST	96	PPPOL2TP_MSG_DEBUG = L2TP_MSG_DEBUG,
	97	PPPOL2TP_MSG_CONTROL = L2TP_MSG_CONTROL,
	98	PPPOL2TP_MSG_SEQ = L2TP_MSG_SEQ,
	99	PPPOL2TP_MSG_DATA = L2TP_MSG_DATA,
607ca46e DH	100	};
	101
	102
	103
	104	#endif /* _UAPI__LINUX_IF_PPPOL2TP_H */