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network: logs link state change
[thirdparty/systemd.git] / src / network / networkd-link.h
CommitLineData
53e1b683 1/* SPDX-License-Identifier: LGPL-2.1+ */
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2#pragma once
3
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4#include <endian.h>
5
634f0f98 6#include "sd-bus.h"
51517f9e 7#include "sd-device.h"
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8#include "sd-dhcp-client.h"
9#include "sd-dhcp-server.h"
fc2f9534 10#include "sd-dhcp6-client.h"
07630cea 11#include "sd-ipv4ll.h"
fc2f9534 12#include "sd-lldp.h"
07630cea 13#include "sd-ndisc.h"
9d5d0090 14#include "sd-radv.h"
634f0f98 15#include "sd-netlink.h"
fc2f9534 16
634f0f98 17#include "list.h"
e67ae9f5 18#include "log-link.h"
2cd6b932 19#include "network-util.h"
634f0f98 20#include "set.h"
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21
22typedef enum LinkState {
8434fd5c 23 LINK_STATE_PENDING,
289e6774 24 LINK_STATE_CONFIGURING,
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25 LINK_STATE_CONFIGURED,
26 LINK_STATE_UNMANAGED,
27 LINK_STATE_FAILED,
28 LINK_STATE_LINGER,
29 _LINK_STATE_MAX,
30 _LINK_STATE_INVALID = -1
31} LinkState;
32
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33typedef struct Manager Manager;
34typedef struct Network Network;
35typedef struct Address Address;
f24648a6 36typedef struct DUID DUID;
fc2f9534 37
634f0f98 38typedef struct Link {
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39 Manager *manager;
40
cf4b2f99 41 unsigned n_ref;
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42
43 int ifindex;
cbff7170 44 int master_ifindex;
0b1831c2 45 char *ifname;
6cad256d 46 char *kind;
b710e6b6 47 unsigned short iftype;
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48 char *state_file;
49 struct ether_addr mac;
c601ebf7 50 struct in6_addr ipv6ll_address;
0b1831c2 51 uint32_t mtu;
51517f9e 52 sd_device *sd_device;
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53
54 unsigned flags;
55 uint8_t kernel_operstate;
56
57 Network *network;
58
59 LinkState state;
60 LinkOperationalState operstate;
61
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62 unsigned address_messages;
63 unsigned address_label_messages;
e4a71bf3 64 unsigned neighbor_messages;
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65 unsigned route_messages;
66 unsigned routing_policy_rule_messages;
67 unsigned routing_policy_rule_remove_messages;
0b1831c2 68 unsigned enslaving;
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69 /* link_is_enslaved() has additional checks. So, it is named _raw. */
70 bool enslaved_raw;
0b1831c2 71
cf1d700d 72 Set *addresses;
adda1ed9 73 Set *addresses_foreign;
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74 Set *routes;
75 Set *routes_foreign;
0b1831c2 76
c42ff3a1 77 bool addresses_configured;
6aa5773b 78 bool addresses_ready;
c42ff3a1 79
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80 sd_dhcp_client *dhcp_client;
81 sd_dhcp_lease *dhcp_lease;
82 char *lease_file;
4e964aa0 83 uint32_t original_mtu;
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84 unsigned dhcp4_messages;
85 bool dhcp4_configured;
18d29550 86 bool dhcp6_configured;
1e7a0e21 87
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88 unsigned ndisc_messages;
89 bool ndisc_configured;
b22d8a00 90
0b1831c2 91 sd_ipv4ll *ipv4ll;
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92 bool ipv4ll_address:1;
93 bool ipv4ll_route:1;
0b1831c2 94
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95 bool neighbors_configured;
96
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97 bool static_routes_configured;
98 bool routing_policy_rules_configured;
97e7fb39 99 bool setting_mtu;
3c9b8860 100
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101 LIST_HEAD(Address, pool_addresses);
102
103 sd_dhcp_server *dhcp_server;
104
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105 sd_ndisc *ndisc;
106 Set *ndisc_rdnss;
107 Set *ndisc_dnssl;
108
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109 sd_radv *radv;
110
0b1831c2 111 sd_dhcp6_client *dhcp6_client;
be3a09b7 112 bool rtnl_extended_attrs;
ce43e484 113
8e1ad1ea 114 /* This is about LLDP reception */
ce43e484 115 sd_lldp *lldp;
49699bac 116 char *lldp_file;
0d4ad91d 117
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118 /* This is about LLDP transmission */
119 unsigned lldp_tx_fast; /* The LLDP txFast counter (See 802.1ab-2009, section 9.2.5.18) */
7272b25e 120 sd_event_source *lldp_emit_event_source;
8e1ad1ea 121
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122 Hashmap *bound_by_links;
123 Hashmap *bound_to_links;
45e11abf 124 Hashmap *slaves;
634f0f98 125} Link;
0b1831c2 126
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127typedef int (*link_netlink_message_handler_t)(sd_netlink*, sd_netlink_message*, Link*);
128
f24648a6 129DUID *link_get_duid(Link *link);
27dfc982 130int get_product_uuid_handler(sd_bus_message *m, void *userdata, sd_bus_error *ret_error);
f24648a6 131
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132Link *link_unref(Link *link);
133Link *link_ref(Link *link);
302a796f 134DEFINE_TRIVIAL_DESTRUCTOR(link_netlink_destroy_callback, Link, link_unref);
1046bf9b 135
0b1831c2 136int link_get(Manager *m, int ifindex, Link **ret);
1c4baffc 137int link_add(Manager *manager, sd_netlink_message *message, Link **ret);
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138void link_drop(Link *link);
139
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140int link_down(Link *link);
141
b22d8a00 142void link_enter_failed(Link *link);
51517f9e 143int link_initialized(Link *link, sd_device *device);
0b1831c2 144
8012cd39 145void link_check_ready(Link *link);
b22d8a00 146
959f65d3 147void link_update_operstate(Link *link, bool also_update_bond_master);
1c4baffc 148int link_update(Link *link, sd_netlink_message *message);
b22d8a00 149
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150void link_dirty(Link *link);
151void link_clean(Link *link);
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152int link_save(Link *link);
153
9c0a72f9 154int link_carrier_reset(Link *link);
a61bb41c 155bool link_has_carrier(Link *link);
0b1831c2 156
c601ebf7 157int link_ipv6ll_gained(Link *link, const struct in6_addr *address);
e7ab854c 158
40288ece 159int link_set_mtu(Link *link, uint32_t mtu, bool force);
3c9b8860 160
b22d8a00 161int ipv4ll_configure(Link *link);
3c9b8860 162int dhcp4_configure(Link *link);
fff1f40c 163int dhcp4_set_client_identifier(Link *link);
64b21ece 164int dhcp4_set_promote_secondaries(Link *link);
10752343 165int dhcp6_request_prefix_delegation(Link *link);
7a695d8e 166int dhcp6_configure(Link *link);
720bec40 167int dhcp6_request_address(Link *link, int ir);
65dd5e31 168int dhcp6_lease_pd_prefix_lost(sd_dhcp6_client *client, Link* link);
b22d8a00 169
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170const char* link_state_to_string(LinkState s) _const_;
171LinkState link_state_from_string(const char *s) _pure_;
172
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173extern const sd_bus_vtable link_vtable[];
174
175int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
176int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
177int link_send_changed(Link *link, const char *property, ...) _sentinel_;
0b1831c2 178
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179uint32_t link_get_vrf_table(Link *link);
180uint32_t link_get_dhcp_route_table(Link *link);
181uint32_t link_get_ipv6_accept_ra_route_table(Link *link);
182
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183#define ADDRESS_FMT_VAL(address) \
184 be32toh((address).s_addr) >> 24, \
185 (be32toh((address).s_addr) >> 16) & 0xFFu, \
186 (be32toh((address).s_addr) >> 8) & 0xFFu, \
187 be32toh((address).s_addr) & 0xFFu