cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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if_pppol2tp.h (3318B)

      1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
      2/***************************************************************************
      3 * Linux PPP over L2TP (PPPoL2TP) Socket Implementation (RFC 2661)
      4 *
      5 * This file supplies definitions required by the PPP over L2TP driver
      6 * (l2tp_ppp.c).  All version information wrt this file is located in l2tp_ppp.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_PPPOL2TP_H
     17#define _UAPI__LINUX_IF_PPPOL2TP_H
     18
     19#include <linux/types.h>
     20#include <linux/in.h>
     21#include <linux/in6.h>
     22#include <linux/l2tp.h>
     23
     24/* Structure used to connect() the socket to a particular tunnel UDP
     25 * socket over IPv4.
     26 */
     27struct pppol2tp_addr {
     28	__kernel_pid_t	pid;		/* pid that owns the fd.
     29					 * 0 => current */
     30	int	fd;			/* FD of UDP socket to use */
     31
     32	struct sockaddr_in addr;	/* IP address and port to send to */
     33
     34	__u16 s_tunnel, s_session;	/* For matching incoming packets */
     35	__u16 d_tunnel, d_session;	/* For sending outgoing packets */
     36};
     37
     38/* Structure used to connect() the socket to a particular tunnel UDP
     39 * socket over IPv6.
     40 */
     41struct pppol2tpin6_addr {
     42	__kernel_pid_t	pid;		/* pid that owns the fd.
     43					 * 0 => current */
     44	int	fd;			/* FD of UDP socket to use */
     45
     46	__u16 s_tunnel, s_session;	/* For matching incoming packets */
     47	__u16 d_tunnel, d_session;	/* For sending outgoing packets */
     48
     49	struct sockaddr_in6 addr;	/* IP address and port to send to */
     50};
     51
     52/* The L2TPv3 protocol changes tunnel and session ids from 16 to 32
     53 * bits. So we need a different sockaddr structure.
     54 */
     55struct pppol2tpv3_addr {
     56	__kernel_pid_t	pid;		/* pid that owns the fd.
     57					 * 0 => current */
     58	int	fd;			/* FD of UDP or IP socket to use */
     59
     60	struct sockaddr_in addr;	/* IP address and port to send to */
     61
     62	__u32 s_tunnel, s_session;	/* For matching incoming packets */
     63	__u32 d_tunnel, d_session;	/* For sending outgoing packets */
     64};
     65
     66struct pppol2tpv3in6_addr {
     67	__kernel_pid_t	pid;		/* pid that owns the fd.
     68					 * 0 => current */
     69	int	fd;			/* FD of UDP or IP socket to use */
     70
     71	__u32 s_tunnel, s_session;	/* For matching incoming packets */
     72	__u32 d_tunnel, d_session;	/* For sending outgoing packets */
     73
     74	struct sockaddr_in6 addr;	/* IP address and port to send to */
     75};
     76
     77/* Socket options:
     78 * DEBUG	- bitmask of debug message categories (not used)
     79 * SENDSEQ	- 0 => don't send packets with sequence numbers
     80 *		  1 => send packets with sequence numbers
     81 * RECVSEQ	- 0 => receive packet sequence numbers are optional
     82 *		  1 => drop receive packets without sequence numbers
     83 * LNSMODE	- 0 => act as LAC.
     84 *		  1 => act as LNS.
     85 * REORDERTO	- reorder timeout (in millisecs). If 0, don't try to reorder.
     86 */
     87enum {
     88	PPPOL2TP_SO_DEBUG	= 1,
     89	PPPOL2TP_SO_RECVSEQ	= 2,
     90	PPPOL2TP_SO_SENDSEQ	= 3,
     91	PPPOL2TP_SO_LNSMODE	= 4,
     92	PPPOL2TP_SO_REORDERTO	= 5,
     93};
     94
     95/* Debug message categories for the DEBUG socket option (deprecated) */
     96enum {
     97	PPPOL2TP_MSG_DEBUG	= L2TP_MSG_DEBUG,
     98	PPPOL2TP_MSG_CONTROL	= L2TP_MSG_CONTROL,
     99	PPPOL2TP_MSG_SEQ	= L2TP_MSG_SEQ,
    100	PPPOL2TP_MSG_DATA	= L2TP_MSG_DATA,
    101};
    102
    103
    104
    105#endif /* _UAPI__LINUX_IF_PPPOL2TP_H */