src/network/netdev/l2tp-tunnel.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <netinet/in.h>
   5 #include <linux/l2tp.h>
   6
   7 #include "in-addr-util.h"
   8 #include "netdev.h"
   9 #include "networkd-util.h"
  10
  11 typedef enum L2tpL2specType {
  12         NETDEV_L2TP_L2SPECTYPE_NONE = L2TP_L2SPECTYPE_NONE,
  13         NETDEV_L2TP_L2SPECTYPE_DEFAULT = L2TP_L2SPECTYPE_DEFAULT,
  14         _NETDEV_L2TP_L2SPECTYPE_MAX,
  15         _NETDEV_L2TP_L2SPECTYPE_INVALID = -1,
  16 } L2tpL2specType;
  17
  18 typedef enum L2tpEncapType {
  19         NETDEV_L2TP_ENCAPTYPE_UDP = L2TP_ENCAPTYPE_UDP,
  20         NETDEV_L2TP_ENCAPTYPE_IP = L2TP_ENCAPTYPE_IP,
  21         _NETDEV_L2TP_ENCAPTYPE_MAX,
  22         _NETDEV_L2TP_ENCAPTYPE_INVALID = -1,
  23 } L2tpEncapType;
  24
  25 typedef enum L2tpLocalAddressType {
  26         NETDEV_L2TP_LOCAL_ADDRESS_AUTO,
  27         NETDEV_L2TP_LOCAL_ADDRESS_STATIC,
  28         NETDEV_L2TP_LOCAL_ADDRESS_DYNAMIC,
  29         _NETDEV_L2TP_LOCAL_ADDRESS_MAX,
  30         _NETDEV_L2TP_LOCAL_ADDRESS_INVALID = -1,
  31 } L2tpLocalAddressType;
  32
  33 typedef struct L2tpTunnel L2tpTunnel;
  34
  35 typedef struct L2tpSession {
  36         L2tpTunnel *tunnel;
  37         NetworkConfigSection *section;
  38
  39         char *name;
  40
  41         uint32_t session_id;
  42         uint32_t peer_session_id;
  43         L2tpL2specType l2tp_l2spec_type;
  44 } L2tpSession;
  45
  46 struct L2tpTunnel {
  47         NetDev meta;
  48
  49         uint16_t l2tp_udp_sport;
  50         uint16_t l2tp_udp_dport;
  51
  52         uint32_t tunnel_id;
  53         uint32_t peer_tunnel_id;
  54
  55         int family;
  56
  57         bool udp_csum;
  58         bool udp6_csum_rx;
  59         bool udp6_csum_tx;
  60
  61         L2tpLocalAddressType local_address_type;
  62         union in_addr_union local;
  63         union in_addr_union remote;
  64
  65         L2tpEncapType l2tp_encap_type;
  66
  67         OrderedHashmap *sessions_by_section;
  68 };
  69
  70 DEFINE_NETDEV_CAST(L2TP, L2tpTunnel);
  71 extern const NetDevVTable l2tptnl_vtable;
  72
  73 CONFIG_PARSER_PROTOTYPE(config_parse_l2tp_tunnel_address);
  74 CONFIG_PARSER_PROTOTYPE(config_parse_l2tp_tunnel_id);
  75 CONFIG_PARSER_PROTOTYPE(config_parse_l2tp_encap_type);
  76 CONFIG_PARSER_PROTOTYPE(config_parse_l2tp_session_l2spec);
  77 CONFIG_PARSER_PROTOTYPE(config_parse_l2tp_session_id);
  78 CONFIG_PARSER_PROTOTYPE(config_parse_l2tp_session_name);