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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2013 Tom Gundersen <teg@jklm.no>
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#pragma once
#include <endian.h>
#include "networkd.h"
typedef enum LinkState {
LINK_STATE_PENDING,
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;
struct Link {
Manager *manager;
int n_ref;
int ifindex;
char *ifname;
char *state_file;
struct ether_addr mac;
uint32_t mtu;
struct udev_device *udev_device;
unsigned flags;
uint8_t kernel_operstate;
Network *network;
LinkState state;
LinkOperationalState operstate;
unsigned link_messages;
unsigned enslaving;
LIST_HEAD(Address, addresses);
sd_dhcp_client *dhcp_client;
sd_dhcp_lease *dhcp_lease;
char *lease_file;
uint16_t original_mtu;
unsigned dhcp4_messages;
bool dhcp4_configured;
sd_ipv4ll *ipv4ll;
bool ipv4ll_address;
bool ipv4ll_route;
bool static_configured;
LIST_HEAD(Address, pool_addresses);
sd_dhcp_server *dhcp_server;
sd_icmp6_nd *icmp6_router_discovery;
sd_dhcp6_client *dhcp6_client;
bool rtnl_extended_attrs;
sd_lldp *lldp;
char *lldp_file;
Hashmap *bound_by_links;
Hashmap *bound_to_links;
};
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_netlink_message *message, Link **ret);
void link_drop(Link *link);
int link_address_drop_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata);
int link_route_drop_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata);
void link_enter_failed(Link *link);
int link_initialized(Link *link, struct udev_device *device);
void link_client_handler(Link *link);
int link_update(Link *link, sd_netlink_message *message);
int link_rtnl_process_address(sd_netlink *rtnl, sd_netlink_message *message, void *userdata);
int link_save(Link *link);
int link_carrier_reset(Link *link);
bool link_has_carrier(Link *link);
int link_set_mtu(Link *link, uint32_t mtu);
int link_set_hostname(Link *link, const char *hostname);
int link_set_timezone(Link *link, const char *timezone);
int ipv4ll_configure(Link *link);
int dhcp4_configure(Link *link);
int icmp6_configure(Link *link);
bool link_lldp_enabled(Link *link);
bool link_ipv4ll_enabled(Link *link);
bool link_ipv6ll_enabled(Link *link);
bool link_dhcp4_server_enabled(Link *link);
bool link_dhcp4_enabled(Link *link);
bool link_dhcp6_enabled(Link *link);
const char* link_state_to_string(LinkState s) _const_;
LinkState link_state_from_string(const char *s) _pure_;
extern const sd_bus_vtable link_vtable[];
int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
int link_send_changed(Link *link, const char *property, ...) _sentinel_;
DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
#define _cleanup_link_unref_ _cleanup_(link_unrefp)
/* Macros which append INTERFACE= to the message */
#define log_link_full(link, level, error, ...) \
({ \
Link *_l = (link); \
_l ? log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", _l->ifname, ##__VA_ARGS__) : \
log_internal(level, error, __FILE__, __LINE__, __func__, ##__VA_ARGS__); \
}) \
#define log_link_debug(link, ...) log_link_full(link, LOG_DEBUG, 0, ##__VA_ARGS__)
#define log_link_info(link, ...) log_link_full(link, LOG_INFO, 0, ##__VA_ARGS__)
#define log_link_notice(link, ...) log_link_full(link, LOG_NOTICE, 0, ##__VA_ARGS__)
#define log_link_warning(link, ...) log_link_full(link, LOG_WARNING, 0, ##__VA_ARGS__)
#define log_link_error(link, ...) log_link_full(link, LOG_ERR, 0, ##__VA_ARGS__)
#define log_link_debug_errno(link, error, ...) log_link_full(link, LOG_DEBUG, error, ##__VA_ARGS__)
#define log_link_info_errno(link, error, ...) log_link_full(link, LOG_INFO, error, ##__VA_ARGS__)
#define log_link_notice_errno(link, error, ...) log_link_full(link, LOG_NOTICE, error, ##__VA_ARGS__)
#define log_link_warning_errno(link, error, ...) log_link_full(link, LOG_WARNING, error, ##__VA_ARGS__)
#define log_link_error_errno(link, error, ...) log_link_full(link, LOG_ERR, error, ##__VA_ARGS__)
#define LOG_LINK_MESSAGE(link, fmt, ...) "MESSAGE=%s: " fmt, (link)->ifname, ##__VA_ARGS__
#define LOG_LINK_INTERFACE(link) "INTERFACE=%s", (link)->ifname
#define ADDRESS_FMT_VAL(address) \
be32toh((address).s_addr) >> 24, \
(be32toh((address).s_addr) >> 16) & 0xFFu, \
(be32toh((address).s_addr) >> 8) & 0xFFu, \
be32toh((address).s_addr) & 0xFFu
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