a97dcc12e4
We will be woken up on rtnl or dbus activity, so let's just quit if some time has passed and that is the only thing that can happen. Note that we will always stay around if we expect network activity (e.g. DHCP is enabled), as we are not restarted on that.
159 lines
5.3 KiB
C
159 lines
5.3 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2013 Tom Gundersen <teg@jklm.no>
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#pragma once
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#include "networkd.h"
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typedef enum LinkState {
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LINK_STATE_PENDING,
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LINK_STATE_ENSLAVING,
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LINK_STATE_SETTING_ADDRESSES,
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LINK_STATE_SETTING_ROUTES,
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LINK_STATE_CONFIGURED,
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LINK_STATE_UNMANAGED,
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LINK_STATE_FAILED,
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LINK_STATE_LINGER,
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_LINK_STATE_MAX,
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_LINK_STATE_INVALID = -1
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} LinkState;
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struct Link {
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Manager *manager;
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int n_ref;
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int ifindex;
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char *ifname;
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char *state_file;
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struct ether_addr mac;
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uint32_t mtu;
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struct udev_device *udev_device;
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unsigned flags;
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uint8_t kernel_operstate;
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Network *network;
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LinkState state;
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LinkOperationalState operstate;
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unsigned link_messages;
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unsigned enslaving;
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LIST_HEAD(Address, addresses);
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sd_dhcp_client *dhcp_client;
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sd_dhcp_lease *dhcp_lease;
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char *lease_file;
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uint16_t original_mtu;
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unsigned dhcp4_messages;
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bool dhcp4_configured;
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sd_ipv4ll *ipv4ll;
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bool ipv4ll_address;
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bool ipv4ll_route;
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bool static_configured;
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LIST_HEAD(Address, pool_addresses);
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sd_dhcp_server *dhcp_server;
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sd_icmp6_nd *icmp6_router_discovery;
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sd_dhcp6_client *dhcp6_client;
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sd_lldp *lldp;
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char *lldp_file;
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};
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Link *link_unref(Link *link);
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Link *link_ref(Link *link);
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int link_get(Manager *m, int ifindex, Link **ret);
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int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
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void link_drop(Link *link);
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int link_address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata);
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int link_route_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata);
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void link_enter_failed(Link *link);
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int link_initialized(Link *link, struct udev_device *device);
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void link_client_handler(Link *link);
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int link_update(Link *link, sd_rtnl_message *message);
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int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata);
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int link_save(Link *link);
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int link_carrier_reset(Link *link);
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bool link_has_carrier(Link *link);
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int link_set_mtu(Link *link, uint32_t mtu);
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int link_set_hostname(Link *link, const char *hostname);
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int ipv4ll_configure(Link *link);
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int dhcp4_configure(Link *link);
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int icmp6_configure(Link *link);
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bool link_lldp_enabled(Link *link);
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bool link_ipv4ll_enabled(Link *link);
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bool link_dhcp4_server_enabled(Link *link);
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bool link_dhcp4_enabled(Link *link);
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bool link_dhcp6_enabled(Link *link);
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const char* link_state_to_string(LinkState s) _const_;
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LinkState link_state_from_string(const char *s) _pure_;
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extern const sd_bus_vtable link_vtable[];
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int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
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int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
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int link_send_changed(Link *link, const char *property, ...) _sentinel_;
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DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
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#define _cleanup_link_unref_ _cleanup_(link_unrefp)
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/* Macros which append INTERFACE= to the message */
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#define log_link_full(link, level, error, fmt, ...) \
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log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%-*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__)
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#define log_link_debug(link, ...) log_link_full(link, LOG_DEBUG, 0, ##__VA_ARGS__)
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#define log_link_info(link, ...) log_link_full(link, LOG_INFO, 0, ##__VA_ARGS__)
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#define log_link_notice(link, ...) log_link_full(link, LOG_NOTICE, 0, ##__VA_ARGS__)
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#define log_link_warning(link, ...) log_link_full(link, LOG_WARNING, 0, ##__VA_ARGS__)
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#define log_link_error(link, ...) log_link_full(link, LOG_ERR, 0, ##__VA_ARGS__)
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#define log_link_debug_errno(link, error, ...) log_link_full(link, LOG_DEBUG, error, ##__VA_ARGS__)
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#define log_link_info_errno(link, error, ...) log_link_full(link, LOG_INFO, error, ##__VA_ARGS__)
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#define log_link_notice_errno(link, error, ...) log_link_full(link, LOG_NOTICE, error, ##__VA_ARGS__)
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#define log_link_warning_errno(link, error, ...) log_link_full(link, LOG_WARNING, error, ##__VA_ARGS__)
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#define log_link_error_errno(link, error, ...) log_link_full(link, LOG_ERR, error, ##__VA_ARGS__)
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#define log_link_struct(link, level, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
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#define ADDRESS_FMT_VAL(address) \
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(address).s_addr & 0xFF, \
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((address).s_addr >> 8) & 0xFF, \
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((address).s_addr >> 16) & 0xFF, \
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(address).s_addr >> 24
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