src/network/netdev/tunnel.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include "in-addr-util.h"
   5
   6 #include "conf-parser.h"
   7 #include "netdev/netdev.h"
   8 #include "netdev/fou-tunnel.h"
   9
  10 typedef enum Ip6TnlMode {
  11         NETDEV_IP6_TNL_MODE_IP6IP6,
  12         NETDEV_IP6_TNL_MODE_IPIP6,
  13         NETDEV_IP6_TNL_MODE_ANYIP6,
  14         _NETDEV_IP6_TNL_MODE_MAX,
  15         _NETDEV_IP6_TNL_MODE_INVALID = -1,
  16 } Ip6TnlMode;
  17
  18 typedef enum IPv6FlowLabel {
  19         NETDEV_IPV6_FLOWLABEL_INHERIT = 0xFFFFF + 1,
  20         _NETDEV_IPV6_FLOWLABEL_MAX,
  21         _NETDEV_IPV6_FLOWLABEL_INVALID = -1,
  22 } IPv6FlowLabel;
  23
  24 typedef struct Tunnel {
  25         NetDev meta;
  26
  27         uint8_t encap_limit;
  28
  29         int family;
  30         int ipv6_flowlabel;
  31         int allow_localremote;
  32
  33         unsigned ttl;
  34         unsigned tos;
  35         unsigned flags;
  36
  37         uint32_t key;
  38         uint32_t ikey;
  39         uint32_t okey;
  40
  41         union in_addr_union local;
  42         union in_addr_union remote;
  43
  44         Ip6TnlMode ip6tnl_mode;
  45         FooOverUDPEncapType fou_encap_type;
  46
  47         bool pmtudisc;
  48         bool copy_dscp;
  49         bool independent;
  50         bool fou_tunnel;
  51
  52         uint16_t encap_src_port;
  53         uint16_t fou_destination_port;
  54
  55         struct in6_addr sixrd_prefix;
  56         uint8_t sixrd_prefixlen;
  57 } Tunnel;
  58
  59 DEFINE_NETDEV_CAST(IPIP, Tunnel);
  60 DEFINE_NETDEV_CAST(GRE, Tunnel);
  61 DEFINE_NETDEV_CAST(GRETAP, Tunnel);
  62 DEFINE_NETDEV_CAST(IP6GRE, Tunnel);
  63 DEFINE_NETDEV_CAST(IP6GRETAP, Tunnel);
  64 DEFINE_NETDEV_CAST(SIT, Tunnel);
  65 DEFINE_NETDEV_CAST(VTI, Tunnel);
  66 DEFINE_NETDEV_CAST(VTI6, Tunnel);
  67 DEFINE_NETDEV_CAST(IP6TNL, Tunnel);
  68 extern const NetDevVTable ipip_vtable;
  69 extern const NetDevVTable sit_vtable;
  70 extern const NetDevVTable vti_vtable;
  71 extern const NetDevVTable vti6_vtable;
  72 extern const NetDevVTable gre_vtable;
  73 extern const NetDevVTable gretap_vtable;
  74 extern const NetDevVTable ip6gre_vtable;
  75 extern const NetDevVTable ip6gretap_vtable;
  76 extern const NetDevVTable ip6tnl_vtable;
  77
  78 const char *ip6tnl_mode_to_string(Ip6TnlMode d) _const_;
  79 Ip6TnlMode ip6tnl_mode_from_string(const char *d) _pure_;
  80
  81 int config_parse_ip6tnl_mode(const char *unit, const char *filename,
  82                              unsigned line, const char *section,
  83                              unsigned section_line, const char *lvalue,
  84                              int ltype, const char *rvalue, void *data,
  85                              void *userdata);
  86
  87 int config_parse_tunnel_address(const char *unit,
  88                                 const char *filename,
  89                                 unsigned line,
  90                                 const char *section,
  91                                 unsigned section_line,
  92                                 const char *lvalue,
  93                                 int ltype,
  94                                 const char *rvalue,
  95                                 void *data,
  96                                 void *userdata);
  97
  98 int config_parse_ipv6_flowlabel(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
 104 int config_parse_encap_limit(const char *unit, const char *filename,
 105                              unsigned line, const char *section,
 106                              unsigned section_line, const char *lvalue,
 107                              int ltype, const char *rvalue, void *data,
 108                              void *userdata);
 109
 110 int config_parse_tunnel_key(const char *unit, const char *filename,
 111                             unsigned line, const char *section,
 112                             unsigned section_line, const char *lvalue,
 113                             int ltype, const char *rvalue, void *data,
 114                             void *userdata);
 115
 116 CONFIG_PARSER_PROTOTYPE(config_parse_6rd_prefix);