src/network/netdev/tunnel.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   Copyright © 2014 Tom Gundersen <teg@jklm.no>
   6 ***/
   7
   8 #include "in-addr-util.h"
   9
  10 #include "netdev/netdev.h"
  11
  12 typedef enum Ip6TnlMode {
  13         NETDEV_IP6_TNL_MODE_IP6IP6,
  14         NETDEV_IP6_TNL_MODE_IPIP6,
  15         NETDEV_IP6_TNL_MODE_ANYIP6,
  16         _NETDEV_IP6_TNL_MODE_MAX,
  17         _NETDEV_IP6_TNL_MODE_INVALID = -1,
  18 } Ip6TnlMode;
  19
  20 typedef enum IPv6FlowLabel {
  21         NETDEV_IPV6_FLOWLABEL_INHERIT = 0xFFFFF + 1,
  22         _NETDEV_IPV6_FLOWLABEL_MAX,
  23         _NETDEV_IPV6_FLOWLABEL_INVALID = -1,
  24 } IPv6FlowLabel;
  25
  26 typedef struct Tunnel {
  27         NetDev meta;
  28
  29         uint8_t encap_limit;
  30
  31         int family;
  32         int ipv6_flowlabel;
  33         int allow_localremote;
  34
  35         unsigned ttl;
  36         unsigned tos;
  37         unsigned flags;
  38
  39         uint32_t key;
  40         uint32_t ikey;
  41         uint32_t okey;
  42
  43         union in_addr_union local;
  44         union in_addr_union remote;
  45
  46         Ip6TnlMode ip6tnl_mode;
  47
  48         bool pmtudisc;
  49         bool copy_dscp;
  50         bool independent;
  51 } Tunnel;
  52
  53 DEFINE_NETDEV_CAST(IPIP, Tunnel);
  54 DEFINE_NETDEV_CAST(GRE, Tunnel);
  55 DEFINE_NETDEV_CAST(GRETAP, Tunnel);
  56 DEFINE_NETDEV_CAST(IP6GRE, Tunnel);
  57 DEFINE_NETDEV_CAST(IP6GRETAP, Tunnel);
  58 DEFINE_NETDEV_CAST(SIT, Tunnel);
  59 DEFINE_NETDEV_CAST(VTI, Tunnel);
  60 DEFINE_NETDEV_CAST(VTI6, Tunnel);
  61 DEFINE_NETDEV_CAST(IP6TNL, Tunnel);
  62 extern const NetDevVTable ipip_vtable;
  63 extern const NetDevVTable sit_vtable;
  64 extern const NetDevVTable vti_vtable;
  65 extern const NetDevVTable vti6_vtable;
  66 extern const NetDevVTable gre_vtable;
  67 extern const NetDevVTable gretap_vtable;
  68 extern const NetDevVTable ip6gre_vtable;
  69 extern const NetDevVTable ip6gretap_vtable;
  70 extern const NetDevVTable ip6tnl_vtable;
  71
  72 const char *ip6tnl_mode_to_string(Ip6TnlMode d) _const_;
  73 Ip6TnlMode ip6tnl_mode_from_string(const char *d) _pure_;
  74
  75 int config_parse_ip6tnl_mode(const char *unit, const char *filename,
  76                              unsigned line, const char *section,
  77                              unsigned section_line, const char *lvalue,
  78                              int ltype, const char *rvalue, void *data,
  79                              void *userdata);
  80
  81 int config_parse_tunnel_address(const char *unit,
  82                                 const char *filename,
  83                                 unsigned line,
  84                                 const char *section,
  85                                 unsigned section_line,
  86                                 const char *lvalue,
  87                                 int ltype,
  88                                 const char *rvalue,
  89                                 void *data,
  90                                 void *userdata);
  91
  92 int config_parse_ipv6_flowlabel(const char *unit, const char *filename,
  93                                 unsigned line, const char *section,
  94                                 unsigned section_line, const char *lvalue,
  95                                 int ltype, const char *rvalue, void *data,
  96                                 void *userdata);
  97
  98 int config_parse_encap_limit(const char *unit, const char *filename,
  99                              unsigned line, const char *section,
 100                              unsigned section_line, const char *lvalue,
 101                              int ltype, const char *rvalue, void *data,
 102                              void *userdata);
 103 int config_parse_tunnel_key(const char *unit, const char *filename,
 104                             unsigned line, const char *section,
 105                             unsigned section_line, const char *lvalue,
 106                             int ltype, const char *rvalue, void *data,
 107                             void *userdata);