#pragma once

#include <arpa/inet.h>

#include "sd-event.h"

#include "sd-rtnl.h"

#include "sd-bus.h"

#include "sd-dhcp-client.h"

#include "sd-dhcp-server.h"

#include "sd-ipv4ll.h"

#include "sd-icmp6-nd.h"

#include "sd-dhcp6-client.h"

#include "udev.h"

#include "rtnl-util.h"

#include "hashmap.h"

#include "list.h"

#include "set.h"

#include "condition-util.h"

#include "in-addr-util.h"

#define CACHE_INFO_INFINITY_LIFE_TIME 0xFFFFFFFFU

#define VXLAN_VID_MAX (1u << 24) - 1

#define DHCP_ROUTE_METRIC 1024

#define IPV4LL_ROUTE_METRIC 2048

typedef struct NetDev NetDev;

typedef struct Network Network;

typedef struct Link Link;

typedef struct Address Address;

typedef struct Route Route;

typedef struct Manager Manager;

typedef struct AddressPool AddressPool;

typedef struct netdev_join_callback netdev_join_callback;

struct netdev_join_callback {

sd_rtnl_message_handler_t callback;

Link *link;

LIST_FIELDS(netdev_join_callback, callbacks);

};

typedef enum MacVlanMode {

NETDEV_MACVLAN_MODE_PRIVATE = MACVLAN_MODE_PRIVATE,

NETDEV_MACVLAN_MODE_VEPA = MACVLAN_MODE_VEPA,

NETDEV_MACVLAN_MODE_BRIDGE = MACVLAN_MODE_BRIDGE,

NETDEV_MACVLAN_MODE_PASSTHRU = MACVLAN_MODE_PASSTHRU,

_NETDEV_MACVLAN_MODE_MAX,

_NETDEV_MACVLAN_MODE_INVALID = -1

} MacVlanMode;

typedef enum BondMode {

NETDEV_BOND_MODE_BALANCE_RR,

NETDEV_BOND_MODE_ACTIVE_BACKUP,

NETDEV_BOND_MODE_BALANCE_XOR,

NETDEV_BOND_MODE_BROADCAST,

NETDEV_BOND_MODE_802_3AD,

NETDEV_BOND_MODE_BALANCE_TLB,

NETDEV_BOND_MODE_BALANCE_ALB,

_NETDEV_BOND_MODE_MAX,

_NETDEV_BOND_MODE_INVALID = -1

} BondMode;

typedef enum NetDevKind {

NETDEV_KIND_BRIDGE,

NETDEV_KIND_BOND,

NETDEV_KIND_VLAN,

NETDEV_KIND_MACVLAN,

NETDEV_KIND_VXLAN,

NETDEV_KIND_IPIP,

NETDEV_KIND_GRE,

NETDEV_KIND_SIT,

NETDEV_KIND_VETH,

NETDEV_KIND_VTI,

NETDEV_KIND_DUMMY,

NETDEV_KIND_TUN,

NETDEV_KIND_TAP,

_NETDEV_KIND_MAX,

_NETDEV_KIND_INVALID = -1

} NetDevKind;

typedef enum NetDevState {

NETDEV_STATE_FAILED,

NETDEV_STATE_CREATING,

NETDEV_STATE_READY,

NETDEV_STATE_LINGER,

_NETDEV_STATE_MAX,

_NETDEV_STATE_INVALID = -1,

} NetDevState;

struct NetDev {

Manager *manager;

int n_ref;

char *filename;

Condition *match_host;

Condition *match_virt;

Condition *match_kernel;

Condition *match_arch;

char *description;

char *ifname;

char *ifname_peer;

char *user_name;

char *group_name;

size_t mtu;

struct ether_addr *mac;

struct ether_addr *mac_peer;

NetDevKind kind;

uint64_t vlanid;

uint64_t vxlanid;

int32_t macvlan_mode;

int32_t bond_mode;

int ifindex;

NetDevState state;

bool tunnel_pmtudisc;

bool learning;

bool one_queue;

bool multi_queue;

bool packet_info;

unsigned ttl;

unsigned tos;

unsigned char family;

union in_addr_union local;

union in_addr_union remote;

union in_addr_union group;

LIST_HEAD(netdev_join_callback, callbacks);

};

typedef enum DHCPSupport {

DHCP_SUPPORT_NONE,

DHCP_SUPPORT_BOTH,

DHCP_SUPPORT_V4,

DHCP_SUPPORT_V6,

_DHCP_SUPPORT_MAX,

_DHCP_SUPPORT_INVALID = -1,

} DHCPSupport;

struct Network {

Manager *manager;

char *filename;

struct ether_addr *match_mac;

char *match_path;

char *match_driver;

char *match_type;

char *match_name;

char *dhcp_vendor_class_identifier;

Condition *match_host;

Condition *match_virt;

Condition *match_kernel;

Condition *match_arch;

char *description;

NetDev *bridge;

NetDev *bond;

NetDev *tunnel;

Hashmap *vlans;

Hashmap *macvlans;

Hashmap *vxlans;

DHCPSupport dhcp;

bool dhcp_dns;

bool dhcp_ntp;

bool dhcp_mtu;

bool dhcp_hostname;

bool dhcp_domainname;

bool dhcp_sendhost;

bool dhcp_critical;

bool dhcp_routes;

bool ipv4ll;

bool dhcp_server;

LIST_HEAD(Address, static_addresses);

LIST_HEAD(Route, static_routes);

Hashmap *addresses_by_section;

Hashmap *routes_by_section;

LIST_HEAD(Address, dns);

LIST_HEAD(Address, ntp);

LIST_FIELDS(Network, networks);

};

struct Address {

Network *network;

uint64_t section;

unsigned char family;

unsigned char prefixlen;

unsigned char scope;

char *label;

struct in_addr broadcast;

struct ifa_cacheinfo cinfo;

union in_addr_union in_addr;

union in_addr_union in_addr_peer;

LIST_FIELDS(Address, addresses);

};

struct Route {

Network *network;

uint64_t section;

unsigned char family;

unsigned char dst_prefixlen;

unsigned char scope;

uint32_t metrics;

union in_addr_union in_addr;

union in_addr_union dst_addr;

LIST_FIELDS(Route, routes);

};

typedef enum LinkState {

LINK_STATE_INITIALIZING,

LINK_STATE_ENSLAVING,

LINK_STATE_SETTING_ADDRESSES,

LINK_STATE_SETTING_ROUTES,

LINK_STATE_CONFIGURED,

LINK_STATE_UNMANAGED,

LINK_STATE_FAILED,

LINK_STATE_LINGER,

_LINK_STATE_MAX,

_LINK_STATE_INVALID = -1

} LinkState;

typedef enum LinkOperationalState {

LINK_OPERSTATE_UNKNOWN,

LINK_OPERSTATE_DORMANT,

LINK_OPERSTATE_CARRIER,

LINK_OPERSTATE_DEGRADED,

LINK_OPERSTATE_ROUTABLE,

_LINK_OPERSTATE_MAX,

_LINK_OPERSTATE_INVALID = -1

} LinkOperationalState;

struct Link {

Manager *manager;

int n_ref;

uint64_t ifindex;

char *ifname;

char *state_file;

struct ether_addr mac;

struct udev_device *udev_device;

unsigned flags;

uint8_t kernel_operstate;

Network *network;

LinkState state;

LinkOperationalState operstate;

unsigned addr_messages;

unsigned route_messages;

unsigned enslaving;

LIST_HEAD(Address, addresses);

sd_dhcp_client *dhcp_client;

sd_dhcp_lease *dhcp_lease;

char *lease_file;

uint16_t original_mtu;

sd_ipv4ll *ipv4ll;

LIST_HEAD(Address, pool_addresses);

sd_dhcp_server *dhcp_server;

sd_icmp6_nd *icmp6_router_discovery;

sd_dhcp6_client *dhcp6_client;

};

struct AddressPool {

Manager *manager;

unsigned family;

unsigned prefixlen;

union in_addr_union in_addr;

LIST_FIELDS(AddressPool, address_pools);

};

struct Manager {

sd_rtnl *rtnl;

sd_event *event;

sd_bus *bus;

struct udev *udev;

struct udev_monitor *udev_monitor;

sd_event_source *udev_event_source;

sd_event_source *sigterm_event_source;

sd_event_source *sigint_event_source;

char *state_file;

Hashmap *links;

Hashmap *netdevs;

LIST_HEAD(Network, networks);

LIST_HEAD(AddressPool, address_pools);

usec_t network_dirs_ts_usec;

};

extern const char* const network_dirs[];

int manager_new(Manager **ret);

void manager_free(Manager *m);

int manager_load_config(Manager *m);

bool manager_should_reload(Manager *m);

int manager_rtnl_enumerate_links(Manager *m);

int manager_rtnl_listen(Manager *m);

int manager_udev_listen(Manager *m);

int manager_bus_listen(Manager *m);

int manager_save(Manager *m);

int manager_address_pool_acquire(Manager *m, unsigned family, unsigned prefixlen, union in_addr_union *found);

DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);

#define _cleanup_manager_free_ _cleanup_(manager_freep)

#define VLANID_MAX 4094

int netdev_load(Manager *manager);

void netdev_drop(NetDev *netdev);

NetDev *netdev_unref(NetDev *netdev);

NetDev *netdev_ref(NetDev *netdev);

DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref);

#define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp)

int netdev_get(Manager *manager, const char *name, NetDev **ret);

int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);

int netdev_join(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);

int netdev_create_tunnel(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback);

int netdev_create_veth(NetDev *netdev, sd_rtnl_message_handler_t callback);

int netdev_create_vxlan(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback);

int netdev_create_vlan(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback);

int netdev_create_macvlan(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback);

int netdev_create_dummy(NetDev *netdev, sd_rtnl_message_handler_t callback);

int netdev_create_tuntap(NetDev *netdev);

int netdev_create_bond(NetDev *netdev, sd_rtnl_message_handler_t callback);

int netdev_create_bridge(NetDev *netdev, sd_rtnl_message_handler_t callback);

const char *netdev_kind_to_string(NetDevKind d) _const_;

NetDevKind netdev_kind_from_string(const char *d) _pure_;

const char *macvlan_mode_to_string(MacVlanMode d) _const_;

MacVlanMode macvlan_mode_from_string(const char *d) _pure_;

const char *bond_mode_to_string(BondMode d) _const_;

BondMode bond_mode_from_string(const char *d) _pure_;

int config_parse_netdev_kind(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);

int config_parse_macvlan_mode(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);

int config_parse_bond_mode(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);

const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);

int network_load(Manager *manager);

void network_free(Network *network);

DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);

#define _cleanup_network_free_ _cleanup_(network_freep)

int network_get(Manager *manager, struct udev_device *device,

const char *ifname, const struct ether_addr *mac,

Network **ret);

int network_apply(Manager *manager, Network *network, Link *link);

int config_parse_netdev(const char *unit, const char *filename, unsigned line,

const char *section, unsigned section_line, const char *lvalue,

int ltype, const char *rvalue, void *data, void *userdata);

int config_parse_tunnel(const char *unit,

const char *filename,

unsigned line,

const char *section,

unsigned section_line,

const char *lvalue,

int ltype,

const char *rvalue,

void *data,

void *userdata);

int config_parse_tunnel_address(const char *unit,

const char *filename,

unsigned line,

const char *section,

unsigned section_line,

const char *lvalue,

int ltype,

const char *rvalue,

void *data,

void *userdata);

const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);

int route_new_static(Network *network, unsigned section, Route **ret);

int route_new_dynamic(Route **ret);

void route_free(Route *route);

int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);

int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);

DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);

#define _cleanup_route_free_ _cleanup_(route_freep)

int config_parse_gateway(const char *unit, const char *filename, unsigned line,

const char *section, unsigned section_line, const char *lvalue,

int ltype, const char *rvalue, void *data, void *userdata);

int config_parse_destination(const char *unit, const char *filename, unsigned line,

const char *section, unsigned section_line, const char *lvalue,

int ltype, const char *rvalue, void *data, void *userdata);

int config_parse_route_priority(const char *unit, const char *filename, unsigned line,

const char *section, unsigned section_line, const char *lvalue,

int ltype, const char *rvalue, void *data, void *userdata);

int address_new_static(Network *network, unsigned section, Address **ret);

int address_new_dynamic(Address **ret);

void address_free(Address *address);

int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);

int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);

int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);

bool address_equal(Address *a1, Address *a2);

DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);

#define _cleanup_address_free_ _cleanup_(address_freep)

int config_parse_dns(const char *unit, const char *filename, unsigned line,

const char *section, unsigned section_line, const char *lvalue,

int ltype, const char *rvalue, void *data, void *userdata);

int config_parse_address(const char *unit, const char *filename, unsigned line,

const char *section, unsigned section_line, const char *lvalue,

int ltype, const char *rvalue, void *data, void *userdata);

int config_parse_broadcast(const char *unit, const char *filename, unsigned line,

const char *section, unsigned section_line, const char *lvalue,

int ltype, const char *rvalue, void *data, void *userdata);

int config_parse_label(const char *unit, const char *filename, unsigned line,

const char *section, unsigned section_line, const char *lvalue,

int ltype, const char *rvalue, void *data, void *userdata);

Link *link_unref(Link *link);

Link *link_ref(Link *link);

int link_get(Manager *m, int ifindex, Link **ret);

int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);

void link_drop(Link *link);

int link_update(Link *link, sd_rtnl_message *message);

int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata);

int link_initialized(Link *link, struct udev_device *device);

int link_save(Link *link);

bool link_has_carrier(unsigned flags, uint8_t operstate);

const char* link_state_to_string(LinkState s) _const_;

LinkState link_state_from_string(const char *s) _pure_;

const char* link_operstate_to_string(LinkOperationalState s) _const_;

LinkOperationalState link_operstate_from_string(const char *s) _pure_;

DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);

#define _cleanup_link_unref_ _cleanup_(link_unrefp)

const char* dhcp_support_to_string(DHCPSupport i) _const_;

DHCPSupport dhcp_support_from_string(const char *s) _pure_;

int config_parse_dhcp(const char *unit, const char *filename, unsigned line,

const char *section, unsigned section_line, const char *lvalue,

int ltype, const char *rvalue, void *data, void *userdata);

int address_pool_new(Manager *m, AddressPool **ret, unsigned family, const union in_addr_union *u, unsigned prefixlen);

int address_pool_new_from_string(Manager *m, AddressPool **ret, unsigned family, const char *p, unsigned prefixlen);

void address_pool_free(AddressPool *p);

int address_pool_acquire(AddressPool *p, unsigned prefixlen, union in_addr_union *found);

#define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%-*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__)

#define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)

#define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)

#define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)

#define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)

#define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)

#define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)

#define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->ifname, "%-*s: " fmt, IFNAMSIZ, netdev->ifname, ##__VA_ARGS__)

#define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)

#define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)

#define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)

#define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)

#define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)

#define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->ifname, __VA_ARGS__)

#define NETDEV(netdev) "INTERFACE=%s", netdev->ifname

#define ADDRESS_FMT_VAL(address) \

(address).s_addr & 0xFF, \

((address).s_addr >> 8) & 0xFF, \

((address).s_addr >> 16) & 0xFF, \

(address).s_addr >> 24