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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 48struct 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 58enum {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 84enum tunnel_encap_types {85 TUNNEL_ENCAP_NONE,86 TUNNEL_ENCAP_FOU,87 TUNNEL_ENCAP_GUE,88 TUNNEL_ENCAP_MPLS,89};90 91#define TUNNEL_ENCAP_FLAG_CSUM (1<<0)92#define TUNNEL_ENCAP_FLAG_CSUM6 (1<<1)93#define TUNNEL_ENCAP_FLAG_REMCSUM (1<<2)94 95/* SIT-mode i_flags */96#define SIT_ISATAP 0x000197 98struct ip_tunnel_prl {99 __be32 addr;100 __u16 flags;101 __u16 __reserved;102 __u32 datalen;103 __u32 __reserved2;104 /* data follows */105};106 107/* PRL flags */108#define PRL_DEFAULT 0x0001109 110struct ip_tunnel_6rd {111 struct in6_addr prefix;112 __be32 relay_prefix;113 __u16 prefixlen;114 __u16 relay_prefixlen;115};116 117enum {118 IFLA_GRE_UNSPEC,119 IFLA_GRE_LINK,120 IFLA_GRE_IFLAGS,121 IFLA_GRE_OFLAGS,122 IFLA_GRE_IKEY,123 IFLA_GRE_OKEY,124 IFLA_GRE_LOCAL,125 IFLA_GRE_REMOTE,126 IFLA_GRE_TTL,127 IFLA_GRE_TOS,128 IFLA_GRE_PMTUDISC,129 IFLA_GRE_ENCAP_LIMIT,130 IFLA_GRE_FLOWINFO,131 IFLA_GRE_FLAGS,132 IFLA_GRE_ENCAP_TYPE,133 IFLA_GRE_ENCAP_FLAGS,134 IFLA_GRE_ENCAP_SPORT,135 IFLA_GRE_ENCAP_DPORT,136 IFLA_GRE_COLLECT_METADATA,137 IFLA_GRE_IGNORE_DF,138 IFLA_GRE_FWMARK,139 IFLA_GRE_ERSPAN_INDEX,140 IFLA_GRE_ERSPAN_VER,141 IFLA_GRE_ERSPAN_DIR,142 IFLA_GRE_ERSPAN_HWID,143 __IFLA_GRE_MAX,144};145 146#define IFLA_GRE_MAX (__IFLA_GRE_MAX - 1)147 148/* VTI-mode i_flags */149#define VTI_ISVTI ((__force __be16)0x0001)150 151enum {152 IFLA_VTI_UNSPEC,153 IFLA_VTI_LINK,154 IFLA_VTI_IKEY,155 IFLA_VTI_OKEY,156 IFLA_VTI_LOCAL,157 IFLA_VTI_REMOTE,158 IFLA_VTI_FWMARK,159 __IFLA_VTI_MAX,160};161 162#define IFLA_VTI_MAX (__IFLA_VTI_MAX - 1)163 164#ifndef __KERNEL__165/* Historically, tunnel flags have been defined as __be16 and now there are166 * no free bits left. It is strongly advised to switch the already existing167 * userspace code to the new *_BIT definitions from down below, as __be16168 * can't be simply cast to a wider type on LE systems. All new flags and169 * code must use *_BIT only.170 */171 172#define TUNNEL_CSUM __cpu_to_be16(0x01)173#define TUNNEL_ROUTING __cpu_to_be16(0x02)174#define TUNNEL_KEY __cpu_to_be16(0x04)175#define TUNNEL_SEQ __cpu_to_be16(0x08)176#define TUNNEL_STRICT __cpu_to_be16(0x10)177#define TUNNEL_REC __cpu_to_be16(0x20)178#define TUNNEL_VERSION __cpu_to_be16(0x40)179#define TUNNEL_NO_KEY __cpu_to_be16(0x80)180#define TUNNEL_DONT_FRAGMENT __cpu_to_be16(0x0100)181#define TUNNEL_OAM __cpu_to_be16(0x0200)182#define TUNNEL_CRIT_OPT __cpu_to_be16(0x0400)183#define TUNNEL_GENEVE_OPT __cpu_to_be16(0x0800)184#define TUNNEL_VXLAN_OPT __cpu_to_be16(0x1000)185#define TUNNEL_NOCACHE __cpu_to_be16(0x2000)186#define TUNNEL_ERSPAN_OPT __cpu_to_be16(0x4000)187#define TUNNEL_GTP_OPT __cpu_to_be16(0x8000)188 189#define TUNNEL_OPTIONS_PRESENT \190 (TUNNEL_GENEVE_OPT | TUNNEL_VXLAN_OPT | TUNNEL_ERSPAN_OPT | \191 TUNNEL_GTP_OPT)192#endif193 194enum {195 IP_TUNNEL_CSUM_BIT = 0U,196 IP_TUNNEL_ROUTING_BIT,197 IP_TUNNEL_KEY_BIT,198 IP_TUNNEL_SEQ_BIT,199 IP_TUNNEL_STRICT_BIT,200 IP_TUNNEL_REC_BIT,201 IP_TUNNEL_VERSION_BIT,202 IP_TUNNEL_NO_KEY_BIT,203 IP_TUNNEL_DONT_FRAGMENT_BIT,204 IP_TUNNEL_OAM_BIT,205 IP_TUNNEL_CRIT_OPT_BIT,206 IP_TUNNEL_GENEVE_OPT_BIT, /* OPTIONS_PRESENT */207 IP_TUNNEL_VXLAN_OPT_BIT, /* OPTIONS_PRESENT */208 IP_TUNNEL_NOCACHE_BIT,209 IP_TUNNEL_ERSPAN_OPT_BIT, /* OPTIONS_PRESENT */210 IP_TUNNEL_GTP_OPT_BIT, /* OPTIONS_PRESENT */211 212 IP_TUNNEL_VTI_BIT,213 IP_TUNNEL_SIT_ISATAP_BIT = IP_TUNNEL_VTI_BIT,214 215 /* Flags starting from here are not available via the old UAPI */216 IP_TUNNEL_PFCP_OPT_BIT, /* OPTIONS_PRESENT */217 218 __IP_TUNNEL_FLAG_NUM,219};220 221#endif /* _UAPI_IF_TUNNEL_H_ */222