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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include "in-addr-util.h"
#include "conf-parser.h"
#include "fou-tunnel.h"
#include "netdev-util.h"
#include "netdev.h"
#include "networkd-link.h"
typedef enum Ip6TnlMode {
NETDEV_IP6_TNL_MODE_IP6IP6,
NETDEV_IP6_TNL_MODE_IPIP6,
NETDEV_IP6_TNL_MODE_ANYIP6,
_NETDEV_IP6_TNL_MODE_MAX,
_NETDEV_IP6_TNL_MODE_INVALID = -EINVAL,
} Ip6TnlMode;
typedef enum IPv6FlowLabel {
NETDEV_IPV6_FLOWLABEL_INHERIT = 0xFFFFF + 1,
_NETDEV_IPV6_FLOWLABEL_MAX,
_NETDEV_IPV6_FLOWLABEL_INVALID = -EINVAL,
} IPv6FlowLabel;
typedef struct Tunnel {
NetDev meta;
uint8_t encap_limit;
int family;
int ipv6_flowlabel;
int allow_localremote;
int gre_erspan_sequence;
int isatap;
unsigned ttl;
unsigned tos;
unsigned flags;
uint32_t key;
uint32_t ikey;
uint32_t okey;
uint8_t erspan_version;
uint32_t erspan_index; /* version 1 */
uint8_t erspan_direction; /* version 2 */
uint16_t erspan_hwid; /* version 2 */
NetDevLocalAddressType local_type;
union in_addr_union local;
union in_addr_union remote;
Ip6TnlMode ip6tnl_mode;
FooOverUDPEncapType fou_encap_type;
bool pmtudisc;
bool copy_dscp;
bool independent;
bool fou_tunnel;
bool assign_to_loopback;
bool external; /* a.k.a collect metadata mode */
uint16_t encap_src_port;
uint16_t fou_destination_port;
struct in6_addr sixrd_prefix;
uint8_t sixrd_prefixlen;
} Tunnel;
int dhcp4_pd_create_6rd_tunnel_name(Link *link, char **ret);
int dhcp4_pd_create_6rd_tunnel(Link *link, link_netlink_message_handler_t callback);
DEFINE_NETDEV_CAST(IPIP, Tunnel);
DEFINE_NETDEV_CAST(GRE, Tunnel);
DEFINE_NETDEV_CAST(GRETAP, Tunnel);
DEFINE_NETDEV_CAST(IP6GRE, Tunnel);
DEFINE_NETDEV_CAST(IP6GRETAP, Tunnel);
DEFINE_NETDEV_CAST(SIT, Tunnel);
DEFINE_NETDEV_CAST(VTI, Tunnel);
DEFINE_NETDEV_CAST(VTI6, Tunnel);
DEFINE_NETDEV_CAST(IP6TNL, Tunnel);
DEFINE_NETDEV_CAST(ERSPAN, Tunnel);
static inline Tunnel* TUNNEL(NetDev *netdev) {
assert(netdev);
switch (netdev->kind) {
case NETDEV_KIND_IPIP:
return IPIP(netdev);
case NETDEV_KIND_SIT:
return SIT(netdev);
case NETDEV_KIND_GRE:
return GRE(netdev);
case NETDEV_KIND_GRETAP:
return GRETAP(netdev);
case NETDEV_KIND_IP6GRE:
return IP6GRE(netdev);
case NETDEV_KIND_IP6GRETAP:
return IP6GRETAP(netdev);
case NETDEV_KIND_VTI:
return VTI(netdev);
case NETDEV_KIND_VTI6:
return VTI6(netdev);
case NETDEV_KIND_IP6TNL:
return IP6TNL(netdev);
case NETDEV_KIND_ERSPAN:
return ERSPAN(netdev);
default:
return NULL;
}
}
extern const NetDevVTable ipip_vtable;
extern const NetDevVTable sit_vtable;
extern const NetDevVTable vti_vtable;
extern const NetDevVTable vti6_vtable;
extern const NetDevVTable gre_vtable;
extern const NetDevVTable gretap_vtable;
extern const NetDevVTable ip6gre_vtable;
extern const NetDevVTable ip6gretap_vtable;
extern const NetDevVTable ip6tnl_vtable;
extern const NetDevVTable erspan_vtable;
const char *ip6tnl_mode_to_string(Ip6TnlMode d) _const_;
Ip6TnlMode ip6tnl_mode_from_string(const char *d) _pure_;
CONFIG_PARSER_PROTOTYPE(config_parse_ip6tnl_mode);
CONFIG_PARSER_PROTOTYPE(config_parse_tunnel_local_address);
CONFIG_PARSER_PROTOTYPE(config_parse_tunnel_remote_address);
CONFIG_PARSER_PROTOTYPE(config_parse_ipv6_flowlabel);
CONFIG_PARSER_PROTOTYPE(config_parse_encap_limit);
CONFIG_PARSER_PROTOTYPE(config_parse_tunnel_key);
CONFIG_PARSER_PROTOTYPE(config_parse_6rd_prefix);
CONFIG_PARSER_PROTOTYPE(config_parse_erspan_version);
CONFIG_PARSER_PROTOTYPE(config_parse_erspan_index);
CONFIG_PARSER_PROTOTYPE(config_parse_erspan_direction);
CONFIG_PARSER_PROTOTYPE(config_parse_erspan_hwid);
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