8e1ad1eaf7
Let's add some minimalistic LLDP sender support. The idea is that this is either on or off, and all fields determined automatically rather than configured explicitly.
207 lines
6.9 KiB
C
207 lines
6.9 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-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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typedef struct Link Link;
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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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#include "networkd-address.h"
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#include "networkd-network.h"
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#include "networkd.h"
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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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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_router_discovery;
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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_tx_event_source;
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Hashmap *bound_by_links;
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Hashmap *bound_to_links;
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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_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);
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int ndisc_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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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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Link *_l = (link); \
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_l ? log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", _l->ifname, ##__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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