src/network/netdev/tunnel.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4
   5 #include "in-addr-util.h"
   6
   7 #include "netdev/netdev.h"
   8
   9 typedef enum Ip6TnlMode {
  10         NETDEV_IP6_TNL_MODE_IP6IP6,
  11         NETDEV_IP6_TNL_MODE_IPIP6,
  12         NETDEV_IP6_TNL_MODE_ANYIP6,
  13         _NETDEV_IP6_TNL_MODE_MAX,
  14         _NETDEV_IP6_TNL_MODE_INVALID = -1,
  15 } Ip6TnlMode;
  16
  17 typedef enum IPv6FlowLabel {
  18         NETDEV_IPV6_FLOWLABEL_INHERIT = 0xFFFFF + 1,
  19         _NETDEV_IPV6_FLOWLABEL_MAX,
  20         _NETDEV_IPV6_FLOWLABEL_INVALID = -1,
  21 } IPv6FlowLabel;
  22
  23 typedef struct Tunnel {
  24         NetDev meta;
  25
  26         uint8_t encap_limit;
  27
  28         int family;
  29         int ipv6_flowlabel;
  30         int allow_localremote;
  31
  32         unsigned ttl;
  33         unsigned tos;
  34         unsigned flags;
  35
  36         uint32_t key;
  37         uint32_t ikey;
  38         uint32_t okey;
  39
  40         union in_addr_union local;
  41         union in_addr_union remote;
  42
  43         Ip6TnlMode ip6tnl_mode;
  44
  45         bool pmtudisc;
  46         bool copy_dscp;
  47         bool independent;
  48 } Tunnel;
  49
  50 DEFINE_NETDEV_CAST(IPIP, Tunnel);
  51 DEFINE_NETDEV_CAST(GRE, Tunnel);
  52 DEFINE_NETDEV_CAST(GRETAP, Tunnel);
  53 DEFINE_NETDEV_CAST(IP6GRE, Tunnel);
  54 DEFINE_NETDEV_CAST(IP6GRETAP, Tunnel);
  55 DEFINE_NETDEV_CAST(SIT, Tunnel);
  56 DEFINE_NETDEV_CAST(VTI, Tunnel);
  57 DEFINE_NETDEV_CAST(VTI6, Tunnel);
  58 DEFINE_NETDEV_CAST(IP6TNL, Tunnel);
  59 extern const NetDevVTable ipip_vtable;
  60 extern const NetDevVTable sit_vtable;
  61 extern const NetDevVTable vti_vtable;
  62 extern const NetDevVTable vti6_vtable;
  63 extern const NetDevVTable gre_vtable;
  64 extern const NetDevVTable gretap_vtable;
  65 extern const NetDevVTable ip6gre_vtable;
  66 extern const NetDevVTable ip6gretap_vtable;
  67 extern const NetDevVTable ip6tnl_vtable;
  68
  69 const char *ip6tnl_mode_to_string(Ip6TnlMode d) _const_;
  70 Ip6TnlMode ip6tnl_mode_from_string(const char *d) _pure_;
  71
  72 int config_parse_ip6tnl_mode(const char *unit, const char *filename,
  73                              unsigned line, const char *section,
  74                              unsigned section_line, const char *lvalue,
  75                              int ltype, const char *rvalue, void *data,
  76                              void *userdata);
  77
  78 int config_parse_tunnel_address(const char *unit,
  79                                 const char *filename,
  80                                 unsigned line,
  81                                 const char *section,
  82                                 unsigned section_line,
  83                                 const char *lvalue,
  84                                 int ltype,
  85                                 const char *rvalue,
  86                                 void *data,
  87                                 void *userdata);
  88
  89 int config_parse_ipv6_flowlabel(const char *unit, const char *filename,
  90                                 unsigned line, const char *section,
  91                                 unsigned section_line, const char *lvalue,
  92                                 int ltype, const char *rvalue, void *data,
  93                                 void *userdata);
  94
  95 int config_parse_encap_limit(const char *unit, const char *filename,
  96                              unsigned line, const char *section,
  97                              unsigned section_line, const char *lvalue,
  98                              int ltype, const char *rvalue, void *data,
  99                              void *userdata);
 100 int config_parse_tunnel_key(const char *unit, const char *filename,
 101                             unsigned line, const char *section,
 102                             unsigned section_line, const char *lvalue,
 103                             int ltype, const char *rvalue, void *data,
 104                             void *userdata);