1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
5 #include <linux/nl80211.h>
9 #include "sd-dhcp-client.h"
10 #include "sd-dhcp-server.h"
11 #include "sd-dhcp6-client.h"
12 #include "sd-ipv4acd.h"
13 #include "sd-ipv4ll.h"
14 #include "sd-lldp-rx.h"
15 #include "sd-lldp-tx.h"
18 #include "sd-netlink.h"
20 #include "ether-addr-util.h"
22 #include "netif-util.h"
23 #include "network-util.h"
24 #include "networkd-bridge-vlan.h"
25 #include "networkd-ipv6ll.h"
26 #include "networkd-util.h"
27 #include "ordered-set.h"
28 #include "ratelimit.h"
29 #include "resolve-util.h"
32 typedef enum LinkState
{
33 LINK_STATE_PENDING
, /* udev has not initialized the link */
34 LINK_STATE_INITIALIZED
, /* udev has initialized the link */
35 LINK_STATE_CONFIGURING
, /* configuring addresses, routes, etc. */
36 LINK_STATE_CONFIGURED
, /* everything is configured */
37 LINK_STATE_UNMANAGED
, /* Unmanaged=yes is set */
38 LINK_STATE_FAILED
, /* at least one configuration process failed */
39 LINK_STATE_LINGER
, /* RTM_DELLINK for the link has been received */
41 _LINK_STATE_INVALID
= -EINVAL
,
44 typedef struct Manager Manager
;
45 typedef struct Network Network
;
46 typedef struct NetDev NetDev
;
47 typedef struct DUID DUID
;
56 int dsa_master_ifindex
;
57 int sr_iov_phys_port_ifindex
;
58 Set
*sr_iov_virt_port_ifindices
;
61 char **alternative_names
;
63 unsigned short iftype
;
65 struct hw_addr_data hw_addr
;
66 struct hw_addr_data bcast_addr
;
67 struct hw_addr_data permanent_hw_addr
;
68 struct hw_addr_data requested_hw_addr
;
69 struct in6_addr ipv6ll_address
;
73 uint32_t original_mtu
;
78 uint16_t bridge_vlan_pvid
;
79 bool bridge_vlan_pvid_is_untagged
;
80 uint32_t bridge_vlan_bitmap
[BRIDGE_VLAN_BITMAP_LEN
];
82 /* to prevent multiple ethtool calls */
83 bool ethtool_driver_read
;
84 bool ethtool_permanent_hw_addr_read
;
86 /* link-local addressing */
87 IPv6LinkLocalAddressGenMode ipv6ll_address_gen_mode
;
90 enum nl80211_iftype wlan_iftype
;
93 struct ether_addr bssid
;
96 uint8_t kernel_operstate
;
98 sd_event_source
*carrier_lost_timer
;
104 LinkOperationalState operstate
;
105 LinkCarrierState carrier_state
;
106 LinkAddressState address_state
;
107 LinkAddressState ipv4_address_state
;
108 LinkAddressState ipv6_address_state
;
109 LinkOnlineState online_state
;
110 RateLimit automatic_reconfigure_ratelimit
;
112 unsigned static_address_messages
;
113 unsigned static_address_label_messages
;
114 unsigned static_bridge_fdb_messages
;
115 unsigned static_bridge_mdb_messages
;
116 unsigned static_ipv6_proxy_ndp_messages
;
117 unsigned static_neighbor_messages
;
118 unsigned static_nexthop_messages
;
119 unsigned static_route_messages
;
120 unsigned static_routing_policy_rule_messages
;
121 unsigned tc_messages
;
122 unsigned sr_iov_messages
;
123 unsigned set_link_messages
;
124 unsigned set_flags_messages
;
125 unsigned create_stacked_netdev_messages
;
132 sd_dhcp_client
*dhcp_client
;
133 sd_dhcp_lease
*dhcp_lease
;
135 unsigned dhcp4_messages
;
136 bool dhcp4_configured
;
137 char *dhcp4_6rd_tunnel_name
;
139 Hashmap
*ipv4acd_by_address
;
142 bool ipv4ll_address_configured
:1;
144 bool static_addresses_configured
:1;
145 bool static_address_labels_configured
:1;
146 bool static_bridge_fdb_configured
:1;
147 bool static_bridge_mdb_configured
:1;
148 bool static_ipv6_proxy_ndp_configured
:1;
149 bool static_neighbors_configured
:1;
150 bool static_nexthops_configured
:1;
151 bool static_routes_configured
:1;
152 bool static_routing_policy_rules_configured
:1;
153 bool tc_configured
:1;
154 bool sr_iov_configured
:1;
157 bool stacked_netdevs_created
:1;
158 bool bridge_vlan_set
:1;
160 sd_dhcp_server
*dhcp_server
;
163 sd_ndisc_router
*ndisc_default_router
;
164 sd_event_source
*ndisc_expire
;
167 Set
*ndisc_captive_portals
;
169 Set
*ndisc_redirects
;
170 unsigned ndisc_messages
;
171 bool ndisc_configured
:1;
175 sd_dhcp6_client
*dhcp6_client
;
176 sd_dhcp6_lease
*dhcp6_lease
;
177 unsigned dhcp6_messages
;
178 bool dhcp6_configured
;
180 Set
*dhcp_pd_prefixes
;
181 unsigned dhcp_pd_messages
;
182 bool dhcp_pd_configured
;
184 /* This is about LLDP reception */
187 /* This is about LLDP transmission */
190 Hashmap
*bound_by_links
;
191 Hashmap
*bound_to_links
;
194 /* For speed meter */
195 struct rtnl_link_stats64 stats_old
, stats_new
;
198 /* All kinds of DNS configuration the user configured via D-Bus */
199 struct in_addr_full
**dns
;
201 OrderedSet
*search_domains
, *route_domains
;
203 int dns_default_route
;
204 ResolveSupport llmnr
;
206 DnssecMode dnssec_mode
;
207 DnsOverTlsMode dns_over_tls_mode
;
208 Set
*dnssec_negative_trust_anchors
;
210 /* Similar, but NTP server configuration */
214 typedef int (*link_netlink_message_handler_t
)(sd_netlink
*, sd_netlink_message
*, Link
*);
216 bool link_is_ready_to_configure(Link
*link
, bool allow_unmanaged
);
218 void link_ntp_settings_clear(Link
*link
);
219 void link_dns_settings_clear(Link
*link
);
220 Link
*link_unref(Link
*link
);
221 Link
*link_ref(Link
*link
);
222 DEFINE_TRIVIAL_CLEANUP_FUNC(Link
*, link_unref
);
223 DEFINE_TRIVIAL_DESTRUCTOR(link_netlink_destroy_callback
, Link
, link_unref
);
225 int link_get_by_index(Manager
*m
, int ifindex
, Link
**ret
);
226 int link_get_by_name(Manager
*m
, const char *ifname
, Link
**ret
);
227 int link_get_by_hw_addr(Manager
*m
, const struct hw_addr_data
*hw_addr
, Link
**ret
);
228 int link_get_master(Link
*link
, Link
**ret
);
230 int link_getlink_handler_internal(sd_netlink
*rtnl
, sd_netlink_message
*m
, Link
*link
, const char *error_msg
);
231 int link_call_getlink(Link
*link
, link_netlink_message_handler_t callback
);
232 int link_handle_bound_to_list(Link
*link
);
234 void link_enter_failed(Link
*link
);
235 void link_set_state(Link
*link
, LinkState state
);
236 void link_check_ready(Link
*link
);
238 void link_update_operstate(Link
*link
, bool also_update_bond_master
);
240 static inline bool link_has_carrier(Link
*link
) {
242 return netif_has_carrier(link
->kernel_operstate
, link
->flags
);
245 bool link_ipv6_enabled(Link
*link
);
246 int link_ipv6ll_gained(Link
*link
);
247 bool link_has_ipv6_connectivity(Link
*link
);
249 int link_stop_engines(Link
*link
, bool may_keep_dhcp
);
251 const char* link_state_to_string(LinkState s
) _const_
;
252 LinkState
link_state_from_string(const char *s
) _pure_
;
254 int link_reconfigure_impl(Link
*link
, bool force
);
255 int link_reconfigure(Link
*link
, bool force
);
256 int link_reconfigure_on_bus_method_reload(Link
*link
, sd_bus_message
*message
);
258 int manager_udev_process_link(Manager
*m
, sd_device
*device
, sd_device_action_t action
);
259 int manager_rtnl_process_link(sd_netlink
*rtnl
, sd_netlink_message
*message
, Manager
*m
);
261 int link_flags_to_string_alloc(uint32_t flags
, char **ret
);
262 const char *kernel_operstate_to_string(int t
) _const_
;
264 void link_required_operstate_for_online(Link
*link
, LinkOperationalStateRange
*ret
);
265 AddressFamily
link_required_family_for_online(Link
*link
);