cregit-Linux how code gets into the kernel

Release 4.12 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 */

Overall Contributors

PersonTokensPropCommitsCommitProp
David Howells17492.06%133.33%
Asbjörn Sloth Tönnesen94.76%133.33%
Mikko Rapeli63.17%133.33%
Total189100.00%3100.00%
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