include/uapi/linux/if_tunnel.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _UAPI_IF_TUNNEL_H_
   3 #define _UAPI_IF_TUNNEL_H_
   4
   5 #include <linux/types.h>
   6 #include <linux/if.h>
   7 #include <linux/ip.h>
   8 #include <linux/in6.h>
   9 #include <asm/byteorder.h>
  10
  11
  12 #define SIOCGETTUNNEL   (SIOCDEVPRIVATE + 0)
  13 #define SIOCADDTUNNEL   (SIOCDEVPRIVATE + 1)
  14 #define SIOCDELTUNNEL   (SIOCDEVPRIVATE + 2)
  15 #define SIOCCHGTUNNEL   (SIOCDEVPRIVATE + 3)
  16 #define SIOCGETPRL      (SIOCDEVPRIVATE + 4)
  17 #define SIOCADDPRL      (SIOCDEVPRIVATE + 5)
  18 #define SIOCDELPRL      (SIOCDEVPRIVATE + 6)
  19 #define SIOCCHGPRL      (SIOCDEVPRIVATE + 7)
  20 #define SIOCGET6RD      (SIOCDEVPRIVATE + 8)
  21 #define SIOCADD6RD      (SIOCDEVPRIVATE + 9)
  22 #define SIOCDEL6RD      (SIOCDEVPRIVATE + 10)
  23 #define SIOCCHG6RD      (SIOCDEVPRIVATE + 11)
  24
  25 #define GRE_CSUM        __cpu_to_be16(0x8000)
  26 #define GRE_ROUTING     __cpu_to_be16(0x4000)
  27 #define GRE_KEY         __cpu_to_be16(0x2000)
  28 #define GRE_SEQ         __cpu_to_be16(0x1000)
  29 #define GRE_STRICT      __cpu_to_be16(0x0800)
  30 #define GRE_REC         __cpu_to_be16(0x0700)
  31 #define GRE_ACK         __cpu_to_be16(0x0080)
  32 #define GRE_FLAGS       __cpu_to_be16(0x0078)
  33 #define GRE_VERSION     __cpu_to_be16(0x0007)
  34
  35 #define GRE_IS_CSUM(f)          ((f) & GRE_CSUM)
  36 #define GRE_IS_ROUTING(f)       ((f) & GRE_ROUTING)
  37 #define GRE_IS_KEY(f)           ((f) & GRE_KEY)
  38 #define GRE_IS_SEQ(f)           ((f) & GRE_SEQ)
  39 #define GRE_IS_STRICT(f)        ((f) & GRE_STRICT)
  40 #define GRE_IS_REC(f)           ((f) & GRE_REC)
  41 #define GRE_IS_ACK(f)           ((f) & GRE_ACK)
  42
  43 #define GRE_VERSION_0           __cpu_to_be16(0x0000)
  44 #define GRE_VERSION_1           __cpu_to_be16(0x0001)
  45 #define GRE_PROTO_PPP           __cpu_to_be16(0x880b)
  46 #define GRE_PPTP_KEY_MASK       __cpu_to_be32(0xffff)
  47
  48 struct ip_tunnel_parm {
  49         char                    name[IFNAMSIZ];
  50         int                     link;
  51         __be16                  i_flags;
  52         __be16                  o_flags;
  53         __be32                  i_key;
  54         __be32                  o_key;
  55         struct iphdr            iph;
  56 };
  57
  58 enum {
  59         IFLA_IPTUN_UNSPEC,
  60         IFLA_IPTUN_LINK,
  61         IFLA_IPTUN_LOCAL,
  62         IFLA_IPTUN_REMOTE,
  63         IFLA_IPTUN_TTL,
  64         IFLA_IPTUN_TOS,
  65         IFLA_IPTUN_ENCAP_LIMIT,
  66         IFLA_IPTUN_FLOWINFO,
  67         IFLA_IPTUN_FLAGS,
  68         IFLA_IPTUN_PROTO,
  69         IFLA_IPTUN_PMTUDISC,
  70         IFLA_IPTUN_6RD_PREFIX,
  71         IFLA_IPTUN_6RD_RELAY_PREFIX,
  72         IFLA_IPTUN_6RD_PREFIXLEN,
  73         IFLA_IPTUN_6RD_RELAY_PREFIXLEN,
  74         IFLA_IPTUN_ENCAP_TYPE,
  75         IFLA_IPTUN_ENCAP_FLAGS,
  76         IFLA_IPTUN_ENCAP_SPORT,
  77         IFLA_IPTUN_ENCAP_DPORT,
  78         IFLA_IPTUN_COLLECT_METADATA,
  79         IFLA_IPTUN_FWMARK,
  80         __IFLA_IPTUN_MAX,
  81 };
  82 #define IFLA_IPTUN_MAX  (__IFLA_IPTUN_MAX - 1)
  83
  84 enum tunnel_encap_types {
  85         TUNNEL_ENCAP_NONE,
  86         TUNNEL_ENCAP_FOU,
  87         TUNNEL_ENCAP_GUE,
  88 };
  89
  90 #define TUNNEL_ENCAP_FLAG_CSUM          (1<<0)
  91 #define TUNNEL_ENCAP_FLAG_CSUM6         (1<<1)
  92 #define TUNNEL_ENCAP_FLAG_REMCSUM       (1<<2)
  93
  94 /* SIT-mode i_flags */
  95 #define SIT_ISATAP      0x0001
  96
  97 struct ip_tunnel_prl {
  98         __be32                  addr;
  99         __u16                   flags;
 100         __u16                   __reserved;
 101         __u32                   datalen;
 102         __u32                   __reserved2;
 103         /* data follows */
 104 };
 105
 106 /* PRL flags */
 107 #define PRL_DEFAULT             0x0001
 108
 109 struct ip_tunnel_6rd {
 110         struct in6_addr         prefix;
 111         __be32                  relay_prefix;
 112         __u16                   prefixlen;
 113         __u16                   relay_prefixlen;
 114 };
 115
 116 enum {
 117         IFLA_GRE_UNSPEC,
 118         IFLA_GRE_LINK,
 119         IFLA_GRE_IFLAGS,
 120         IFLA_GRE_OFLAGS,
 121         IFLA_GRE_IKEY,
 122         IFLA_GRE_OKEY,
 123         IFLA_GRE_LOCAL,
 124         IFLA_GRE_REMOTE,
 125         IFLA_GRE_TTL,
 126         IFLA_GRE_TOS,
 127         IFLA_GRE_PMTUDISC,
 128         IFLA_GRE_ENCAP_LIMIT,
 129         IFLA_GRE_FLOWINFO,
 130         IFLA_GRE_FLAGS,
 131         IFLA_GRE_ENCAP_TYPE,
 132         IFLA_GRE_ENCAP_FLAGS,
 133         IFLA_GRE_ENCAP_SPORT,
 134         IFLA_GRE_ENCAP_DPORT,
 135         IFLA_GRE_COLLECT_METADATA,
 136         IFLA_GRE_IGNORE_DF,
 137         IFLA_GRE_FWMARK,
 138         IFLA_GRE_ERSPAN_INDEX,
 139         __IFLA_GRE_MAX,
 140 };
 141
 142 #define IFLA_GRE_MAX    (__IFLA_GRE_MAX - 1)
 143
 144 /* VTI-mode i_flags */
 145 #define VTI_ISVTI ((__force __be16)0x0001)
 146
 147 enum {
 148         IFLA_VTI_UNSPEC,
 149         IFLA_VTI_LINK,
 150         IFLA_VTI_IKEY,
 151         IFLA_VTI_OKEY,
 152         IFLA_VTI_LOCAL,
 153         IFLA_VTI_REMOTE,
 154         IFLA_VTI_FWMARK,
 155         __IFLA_VTI_MAX,
 156 };
 157
 158 #define IFLA_VTI_MAX    (__IFLA_VTI_MAX - 1)
 159 #endif /* _UAPI_IF_TUNNEL_H_ */