Something went wrong. Try again.
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note *//* * L2TP-over-IP socket for L2TPv3. * * Author: James Chapman <jchapman@katalix.com> */
#ifndef _UAPI_LINUX_L2TP_H_#define _UAPI_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_DADDR, /* u32 */ L2TP_ATTR_UDP_SPORT, /* u16 */ L2TP_ATTR_UDP_DPORT, /* u16 */ L2TP_ATTR_MTU, /* u16 (not used) */ L2TP_ATTR_MRU, /* u16 (not used) */ L2TP_ATTR_STATS, /* nested */ L2TP_ATTR_IP6_SADDR, /* struct in6_addr */ L2TP_ATTR_IP6_DADDR, /* struct in6_addr */ L2TP_ATTR_UDP_ZERO_CSUM6_TX, /* flag */ L2TP_ATTR_UDP_ZERO_CSUM6_RX, /* flag */ L2TP_ATTR_PAD, __L2TP_ATTR_MAX,};
#define L2TP_ATTR_MAX (__L2TP_ATTR_MAX - 1)
/* Nested in L2TP_ATTR_STATS */enum { L2TP_ATTR_STATS_NONE, /* no data */ L2TP_ATTR_TX_PACKETS, /* u64 */ L2TP_ATTR_TX_BYTES, /* u64 */ L2TP_ATTR_TX_ERRORS, /* u64 */ L2TP_ATTR_RX_PACKETS, /* u64 */ L2TP_ATTR_RX_BYTES, /* u64 */ L2TP_ATTR_RX_SEQ_DISCARDS, /* u64 */ L2TP_ATTR_RX_OOS_PACKETS, /* u64 */ L2TP_ATTR_RX_ERRORS, /* u64 */ L2TP_ATTR_STATS_PAD, L2TP_ATTR_RX_COOKIE_DISCARDS, /* u64 */ L2TP_ATTR_RX_INVALID, /* u64 */ __L2TP_ATTR_STATS_MAX,};
#define L2TP_ATTR_STATS_MAX (__L2TP_ATTR_STATS_MAX - 1)
enum l2tp_pwtype { L2TP_PWTYPE_NONE = 0x0000, L2TP_PWTYPE_ETH_VLAN = 0x0004, L2TP_PWTYPE_ETH = 0x0005, L2TP_PWTYPE_PPP = 0x0007, L2TP_PWTYPE_PPP_AC = 0x0008, L2TP_PWTYPE_IP = 0x000b, __L2TP_PWTYPE_MAX};
enum l2tp_l2spec_type { L2TP_L2SPECTYPE_NONE, L2TP_L2SPECTYPE_DEFAULT,};
enum l2tp_encap_type { L2TP_ENCAPTYPE_UDP, L2TP_ENCAPTYPE_IP,};
/* For L2TP_ATTR_DATA_SEQ. Unused. */enum l2tp_seqmode { L2TP_SEQ_NONE = 0, L2TP_SEQ_IP = 1, L2TP_SEQ_ALL = 2,};
/** * enum l2tp_debug_flags - debug message categories for L2TP tunnels/sessions. * * Unused. * * @L2TP_MSG_DEBUG: verbose debug (if compiled in) * @L2TP_MSG_CONTROL: userspace - kernel interface * @L2TP_MSG_SEQ: sequence numbers * @L2TP_MSG_DATA: data packets */enum l2tp_debug_flags { L2TP_MSG_DEBUG = (1 << 0), L2TP_MSG_CONTROL = (1 << 1), L2TP_MSG_SEQ = (1 << 2), L2TP_MSG_DATA = (1 << 3),};
/* * NETLINK_GENERIC related info */#define L2TP_GENL_NAME "l2tp"#define L2TP_GENL_VERSION 0x1#define L2TP_GENL_MCGROUP "l2tp"
#endif /* _UAPI_LINUX_L2TP_H_ */