DRIVER=uhci_hcd
PCI_CLASS=C0300
PCI_ID=8086:7020
PCI_SUBSYS_ID=1AF4:1100
PCI_SLOT_NAME=0000:00:01.2
MODALIAS=pci:v00008086d00007020sv00001AF4sd00001100bc0Csc03i00
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  *   ˆl–ß=¿JÅ!¶e8 EpÜ TÅ£ÅƒmÖœ_†I|¥�+ÀÄ r    /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * L2TP-over-IP socket for L2TPv3.
 *
 * Author: James Chapman <jchapman@katalix.com>
 */

#ifndef _LINUX_L2TP_H_
#define _LINUX_L2TP_H_

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

/**
 * struct sockaddr_l2tpip - the sockaddr structure for L2TP-over-IP sockets
 * @l2tp_family:  address family number AF_L2TPIP.
 * @l2tp_addr:    protocol specific address information
 * @l2tp_conn_id: connection id of tunnel
 */
#define __SOCK_SIZE__	16		/* sizeof(struct sockaddr)	*/
struct sockaddr_l2tpip {
	/* The first fields must match struct sockaddr_in */
	__kernel_sa_family_t l2tp_family; /* AF_INET */
	__be16		l2tp_unused;	/* INET port number (unused) */
	struct in_addr	l2tp_addr;	/* Internet address */

	__u32		l2tp_conn_id;	/* Connection ID of tunnel */

	/* Pad to size of `struct sockaddr'. */
	unsigned char	__pad[__SOCK_SIZE__ -
			      sizeof(__kernel_sa_family_t) -
			      sizeof(__be16) - sizeof(struct in_addr) -
			      sizeof(__u32)];
};

/**
 * struct sockaddr_l2tpip6 - the sockaddr structure for L2TP-over-IPv6 sockets
 * @l2tp_family:  address family number AF_L2TPIP.
 * @l2tp_addr:    protocol specific address information
 * @l2tp_conn_id: connection id of tunnel
 */
struct sockaddr_l2tpip6 {
	/* The first fields must match struct sockaddr_in6 */
	__kernel_sa_family_t l2tp_family; /* AF_INET6 */
	__be16		l2tp_unused;	/* INET port number (unused) */
	__be32		l2tp_flowinfo;	/* IPv6 flow information */
	struct in6_addr	l2tp_addr;	/* IPv6 address */
	__u32		l2tp_scope_id;	/* scope id (new in RFC2553) */
	__u32		l2tp_conn_id;	/* Connection ID of tunnel */
};

/*****************************************************************************
 *  NETLINK_GENERIC netlink family.
 *****************************************************************************/

/*
 * Commands.
 * Valid TLVs of each command are:-
 * TUNNEL_CREATE	- CONN_ID, pw_type, netns, ifname, ipinfo, udpinfo, udpcsum
 * TUNNEL_DELETE	- CONN_ID
 * TUNNEL_MODIFY	- CONN_ID, udpcsum
 * TUNNEL_GETSTATS	- CONN_ID, (stats)
 * TUNNEL_GET		- CONN_ID, (...)
 * SESSION_CREATE	- SESSION_ID, PW_TYPE, cookie, peer_cookie, l2spec
 * SESSION_DELETE	- SESSION_ID
 * SESSION_MODIFY	- SESSION_ID
 * SESSION_GET		- SESSION_ID, (...)
 * SESSION_GETSTATS	- SESSION_ID, (stats)
 *
 */
enum {
	L2TP_CMD_NOOP,
	L2TP_CMD_TUNNEL_CREATE,
	L2TP_CMD_TUNNEL_DELETE,
	L2TP_CMD_TUNNEL_MODIFY,
	L2TP_CMD_TUNNEL_GET,
	L2TP_CMD_SESSION_CREATE,
	L2TP_CMD_SESSION_DELETE,
	L2TP_CMD_SESSION_MODIFY,
	L2TP_CMD_SESSION_GET,
	__L2TP_CMD_MAX,
};

#define L2TP_CMD_MAX			(__L2TP_CMD_MAX - 1)

/*
 * ATTR types defined for L2TP
 */
enum {
	L2TP_ATTR_NONE,			/* no data */
	L2TP_ATTR_PW_TYPE,		/* u16, enum l2tp_pwtype */
	L2TP_ATTR_ENCAP_TYPE,		/* u16, enum l2tp_encap_type */
	L2TP_ATTR_OFFSET,		/* u16 (not used) */
	L2TP_ATTR_DATA_SEQ,		/* u16 (not used) */
	L2TP_ATTR_L2SPEC_TYPE,		/* u8, enum l2tp_l2spec_type */
	L2TP_ATTR_L2SPEC_LEN,		/* u8 (not used) */
	L2TP_ATTR_PROTO_VERSION,	/* u8 */
	L2TP_ATTR_IFNAME,		/* string */
	L2TP_ATTR_CONN_ID,		/* u32 */
	L2TP_ATTR_PEER_CONN_ID,		/* u32 */
	L2TP_ATTR_SESSION_ID,		/* u32 */
	L2TP_ATTR_PEER_SESSION_ID,	/* u32 */
	L2TP_ATTR_UDP_CSUM,		/* u8 */
	L2TP_ATTR_VLAN_ID,		/* u16 (not used) */
	L2TP_ATTR_COOKIE,		/* 0, 4 or 8 bytes */
	L2TP_ATTR_PEER_COOKIE,		/* 0, 4 or 8 bytes */
	L2TP_ATTR_DEBUG,		/* u32, enum l2tp_debug_flags (not used) */
	L2TP_ATTR_RECV_SEQ,		/* u8 */
	L2TP_ATTR_SEND_SEQ,		/* u8 */
	L2TP_ATTR_LNS_MODE,		/* u8 */
	L2TP_ATTR_USING_IPSEC,		/* u8 */
	L2TP_ATTR_RECV_TIMEOUT,		/* msec */
	L2TP_ATTR_FD,			/* int */
	L2TP_ATTR_IP_SADDR,		/* u32 */
	L2TP_ATTR_IP