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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 "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;
typedef enum LinkOperationalState {
LINK_OPERSTATE_DOWN,
LINK_OPERSTATE_UP,
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;
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;
};
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_get_address_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata);
int link_address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata);
int link_route_drop_handler(sd_rtnl *rtnl, sd_rtnl_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_rtnl_message *message);
int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata);
int link_save(Link *link);
bool link_has_carrier(unsigned flags, uint8_t operstate);
int link_set_mtu(Link *link, uint32_t mtu);
int link_set_hostname(Link *link, const char *hostname);
int ipv4ll_configure(Link *link);
int dhcp4_configure(Link *link);
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)
/* Macros which append INTERFACE= to the message */
#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 ADDRESS_FMT_VAL(address) \
(address).s_addr & 0xFF, \
((address).s_addr >> 8) & 0xFF, \
((address).s_addr >> 16) & 0xFF, \
(address).s_addr >> 24
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