214 lines
7.0 KiB
C
214 lines
7.0 KiB
C
#pragma once
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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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#include <endian.h>
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#include "sd-bus.h"
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#include "sd-dhcp-client.h"
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#include "sd-dhcp-server.h"
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#include "sd-dhcp6-client.h"
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#include "sd-ipv4ll.h"
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#include "sd-lldp.h"
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#include "sd-ndisc.h"
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#include "sd-netlink.h"
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#include "list.h"
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#include "set.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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typedef enum LinkOperationalState {
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LINK_OPERSTATE_OFF,
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LINK_OPERSTATE_NO_CARRIER,
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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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typedef struct Manager Manager;
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typedef struct Network Network;
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typedef struct Address Address;
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typedef 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 *kind;
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unsigned short iftype;
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char *state_file;
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struct ether_addr mac;
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struct in6_addr ipv6ll_address;
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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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Set *addresses;
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Set *addresses_foreign;
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Set *routes;
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Set *routes_foreign;
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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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bool dhcp6_configured;
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unsigned ndisc_messages;
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bool ndisc_configured;
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sd_ipv4ll *ipv4ll;
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bool ipv4ll_address:1;
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bool ipv4ll_route:1;
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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_ndisc *ndisc;
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Set *ndisc_rdnss;
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Set *ndisc_dnssl;
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sd_dhcp6_client *dhcp6_client;
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bool rtnl_extended_attrs;
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/* This is about LLDP reception */
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sd_lldp *lldp;
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char *lldp_file;
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/* This is about LLDP transmission */
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unsigned lldp_tx_fast; /* The LLDP txFast counter (See 802.1ab-2009, section 9.2.5.18) */
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sd_event_source *lldp_emit_event_source;
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Hashmap *bound_by_links;
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Hashmap *bound_to_links;
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} Link;
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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_netlink_message *message, Link **ret);
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void link_drop(Link *link);
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int link_address_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata);
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int link_route_remove_handler(sd_netlink *rtnl, sd_netlink_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_check_ready(Link *link);
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void link_update_operstate(Link *link);
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int link_update(Link *link, sd_netlink_message *message);
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void link_dirty(Link *link);
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void link_clean(Link *link);
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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_ipv6ll_gained(Link *link, const struct in6_addr *address);
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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 link_set_timezone(Link *link, const char *timezone);
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int ipv4ll_configure(Link *link);
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int dhcp4_configure(Link *link);
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int dhcp6_configure(Link *link);
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int dhcp6_request_address(Link *link, int ir);
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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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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, ...) \
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({ \
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const Link *_l = (link); \
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_l ? log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", _l->ifname, NULL, NULL, ##__VA_ARGS__) : \
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log_internal(level, error, __FILE__, __LINE__, __func__, ##__VA_ARGS__); \
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}) \
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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_MESSAGE(link, fmt, ...) "MESSAGE=%s: " fmt, (link)->ifname, ##__VA_ARGS__
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#define LOG_LINK_INTERFACE(link) "INTERFACE=%s", (link)->ifname
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#define ADDRESS_FMT_VAL(address) \
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be32toh((address).s_addr) >> 24, \
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(be32toh((address).s_addr) >> 16) & 0xFFu, \
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(be32toh((address).s_addr) >> 8) & 0xFFu, \
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be32toh((address).s_addr) & 0xFFu
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