141 lines
4.4 KiB
C
141 lines
4.4 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_INITIALIZING,
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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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typedef enum LinkOperationalState {
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LINK_OPERSTATE_UNKNOWN,
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LINK_OPERSTATE_DORMANT,
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LINK_OPERSTATE_CARRIER,
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LINK_OPERSTATE_DEGRADED,
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LINK_OPERSTATE_ROUTABLE,
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_LINK_OPERSTATE_MAX,
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_LINK_OPERSTATE_INVALID = -1
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} LinkOperationalState;
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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 addr_messages;
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unsigned route_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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sd_ipv4ll *ipv4ll;
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bool ipv4ll_address;
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bool ipv4ll_route;
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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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};
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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_get_address_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata);
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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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bool link_has_carrier(unsigned flags, uint8_t operstate);
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int ipv4ll_configure(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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const char* link_operstate_to_string(LinkOperationalState s) _const_;
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LinkOperationalState link_operstate_from_string(const char *s) _pure_;
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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_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%-*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__)
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#define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
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#define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
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#define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
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#define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
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#define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
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#define log_struct_link(level, link, ...) 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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