53cb501a13
This work add support to generic netlink to sd-netlink. See https://lwn.net/Articles/208755/ networkd: add support FooOverUDP support to IPIP tunnel netdev https://lwn.net/Articles/614348/ Example conf: /lib/systemd/network/1-fou-tunnel.netdev ``` [NetDev] Name=fou-tun Kind=fou [FooOverUDP] Port=5555 Protocol=4 ``` /lib/systemd/network/ipip-tunnel.netdev ``` [NetDev] Name=ipip-tun Kind=ipip [Tunnel] Independent=true Local=10.65.208.212 Remote=10.65.208.211 FooOverUDP=true FOUDestinationPort=5555 ``` $ ip -d link show ipip-tun ``` 5: ipip-tun@NONE: <POINTOPOINT,NOARP> mtu 1472 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ipip 10.65.208.212 peer 10.65.208.211 promiscuity 0 ipip remote 10.65.208.211 local 10.65.208.212 ttl inherit pmtudisc encap fou encap-sport auto encap-dport 5555 noencap-csum noencap-csum6 noencap-remcsum numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535 ```
111 lines
3.7 KiB
C
111 lines
3.7 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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#include "in-addr-util.h"
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#include "netdev/netdev.h"
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#include "netdev/fou-tunnel.h"
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typedef enum Ip6TnlMode {
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NETDEV_IP6_TNL_MODE_IP6IP6,
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NETDEV_IP6_TNL_MODE_IPIP6,
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NETDEV_IP6_TNL_MODE_ANYIP6,
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_NETDEV_IP6_TNL_MODE_MAX,
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_NETDEV_IP6_TNL_MODE_INVALID = -1,
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} Ip6TnlMode;
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typedef enum IPv6FlowLabel {
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NETDEV_IPV6_FLOWLABEL_INHERIT = 0xFFFFF + 1,
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_NETDEV_IPV6_FLOWLABEL_MAX,
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_NETDEV_IPV6_FLOWLABEL_INVALID = -1,
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} IPv6FlowLabel;
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typedef struct Tunnel {
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NetDev meta;
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uint8_t encap_limit;
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int family;
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int ipv6_flowlabel;
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int allow_localremote;
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unsigned ttl;
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unsigned tos;
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unsigned flags;
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uint32_t key;
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uint32_t ikey;
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uint32_t okey;
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union in_addr_union local;
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union in_addr_union remote;
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Ip6TnlMode ip6tnl_mode;
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FooOverUDPEncapType fou_encap_type;
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bool pmtudisc;
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bool copy_dscp;
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bool independent;
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bool fou_tunnel;
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uint16_t encap_src_port;
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uint16_t fou_destination_port;
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} Tunnel;
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DEFINE_NETDEV_CAST(IPIP, Tunnel);
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DEFINE_NETDEV_CAST(GRE, Tunnel);
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DEFINE_NETDEV_CAST(GRETAP, Tunnel);
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DEFINE_NETDEV_CAST(IP6GRE, Tunnel);
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DEFINE_NETDEV_CAST(IP6GRETAP, Tunnel);
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DEFINE_NETDEV_CAST(SIT, Tunnel);
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DEFINE_NETDEV_CAST(VTI, Tunnel);
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DEFINE_NETDEV_CAST(VTI6, Tunnel);
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DEFINE_NETDEV_CAST(IP6TNL, Tunnel);
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extern const NetDevVTable ipip_vtable;
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extern const NetDevVTable sit_vtable;
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extern const NetDevVTable vti_vtable;
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extern const NetDevVTable vti6_vtable;
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extern const NetDevVTable gre_vtable;
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extern const NetDevVTable gretap_vtable;
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extern const NetDevVTable ip6gre_vtable;
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extern const NetDevVTable ip6gretap_vtable;
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extern const NetDevVTable ip6tnl_vtable;
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const char *ip6tnl_mode_to_string(Ip6TnlMode d) _const_;
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Ip6TnlMode ip6tnl_mode_from_string(const char *d) _pure_;
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int config_parse_ip6tnl_mode(const char *unit, const char *filename,
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unsigned line, const char *section,
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unsigned section_line, const char *lvalue,
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int ltype, const char *rvalue, void *data,
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void *userdata);
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int config_parse_tunnel_address(const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata);
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int config_parse_ipv6_flowlabel(const char *unit, const char *filename,
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unsigned line, const char *section,
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unsigned section_line, const char *lvalue,
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int ltype, const char *rvalue, void *data,
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void *userdata);
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int config_parse_encap_limit(const char *unit, const char *filename,
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unsigned line, const char *section,
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unsigned section_line, const char *lvalue,
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int ltype, const char *rvalue, void *data,
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void *userdata);
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int config_parse_tunnel_key(const char *unit, const char *filename,
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unsigned line, const char *section,
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unsigned section_line, const char *lvalue,
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int ltype, const char *rvalue, void *data,
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void *userdata);
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