1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2013 Tom Gundersen <teg@jklm.no>
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 #include <arpa/inet.h>
29 #include "sd-dhcp-client.h"
30 #include "sd-dhcp-server.h"
31 #include "sd-ipv4ll.h"
32 #include "sd-icmp6-nd.h"
33 #include "sd-dhcp6-client.h"
37 #include "rtnl-util.h"
41 #include "condition.h"
42 #include "in-addr-util.h"
44 #define CACHE_INFO_INFINITY_LIFE_TIME 0xFFFFFFFFU
45 #define DHCP_ROUTE_METRIC 1024
46 #define IPV4LL_ROUTE_METRIC 2048
48 typedef struct NetDev NetDev;
49 typedef struct Network Network;
50 typedef struct Link Link;
51 typedef struct Address Address;
52 typedef struct Route Route;
53 typedef struct Manager Manager;
54 typedef struct AddressPool AddressPool;
55 typedef struct FdbEntry FdbEntry;
57 typedef enum AddressFamilyBoolean {
58 /* This is a bitmask, though it usually doesn't feel that way! */
59 ADDRESS_FAMILY_NO = 0,
60 ADDRESS_FAMILY_IPV4 = 1,
61 ADDRESS_FAMILY_IPV6 = 2,
62 ADDRESS_FAMILY_YES = 3,
63 _ADDRESS_FAMILY_BOOLEAN_MAX,
64 _ADDRESS_FAMILY_BOOLEAN_INVALID = -1,
65 } AddressFamilyBoolean;
67 typedef enum LLMNRSupport {
70 LLMNR_SUPPORT_RESOLVE,
72 _LLMNR_SUPPORT_INVALID = -1,
75 typedef enum LinkOperationalState {
77 LINK_OPERSTATE_NO_CARRIER,
78 LINK_OPERSTATE_DORMANT,
79 LINK_OPERSTATE_CARRIER,
80 LINK_OPERSTATE_DEGRADED,
81 LINK_OPERSTATE_ROUTABLE,
83 _LINK_OPERSTATE_INVALID = -1
84 } LinkOperationalState;
90 struct ether_addr *mac_addr;
93 LIST_FIELDS(FdbEntry, static_fdb_entries);
101 struct ether_addr *match_mac;
106 char *dhcp_vendor_class_identifier;
108 Condition *match_host;
109 Condition *match_virt;
110 Condition *match_kernel;
111 Condition *match_arch;
116 Hashmap *stacked_netdevs;
117 AddressFamilyBoolean dhcp;
127 unsigned dhcp_route_metric;
135 AddressFamilyBoolean ip_forward;
138 struct ether_addr *mac;
143 LIST_HEAD(Address, static_addresses);
144 LIST_HEAD(Route, static_routes);
145 LIST_HEAD(FdbEntry, static_fdb_entries);
147 Hashmap *addresses_by_section;
148 Hashmap *routes_by_section;
149 Hashmap *fdb_entries_by_section;
151 bool wildcard_domain;
152 char **domains, **dns, **ntp;
156 LIST_FIELDS(Network, networks);
164 unsigned char prefixlen;
169 struct in_addr broadcast;
170 struct ifa_cacheinfo cinfo;
172 union in_addr_union in_addr;
173 union in_addr_union in_addr_peer;
175 bool ip_masquerade_done;
177 LIST_FIELDS(Address, addresses);
185 unsigned char dst_prefixlen;
186 unsigned char src_prefixlen;
189 unsigned char protocol; /* RTPROT_* */
191 union in_addr_union in_addr;
192 union in_addr_union dst_addr;
193 union in_addr_union src_addr;
194 union in_addr_union prefsrc_addr;
196 LIST_FIELDS(Route, routes);
205 union in_addr_union in_addr;
207 LIST_FIELDS(AddressPool, address_pools);
213 sd_event_source *bus_retry_event_source;
215 sd_bus_slot *prepare_for_sleep_slot;
217 struct udev_monitor *udev_monitor;
218 sd_event_source *udev_event_source;
223 LinkOperationalState operational_state;
227 LIST_HEAD(Network, networks);
228 LIST_HEAD(AddressPool, address_pools);
230 usec_t network_dirs_ts_usec;
233 extern const char* const network_dirs[];
237 extern const sd_bus_vtable manager_vtable[];
239 int manager_new(Manager **ret);
240 void manager_free(Manager *m);
242 int manager_connect_bus(Manager *m);
243 int manager_run(Manager *m);
245 int manager_load_config(Manager *m);
246 bool manager_should_reload(Manager *m);
248 int manager_rtnl_enumerate_links(Manager *m);
249 int manager_rtnl_enumerate_addresses(Manager *m);
251 int manager_send_changed(Manager *m, const char *property, ...) _sentinel_;
252 int manager_save(Manager *m);
254 int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found);
256 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
257 #define _cleanup_manager_free_ _cleanup_(manager_freep)
261 int network_load(Manager *manager);
263 void network_free(Network *network);
265 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
266 #define _cleanup_network_free_ _cleanup_(network_freep)
268 int network_get(Manager *manager, struct udev_device *device,
269 const char *ifname, const struct ether_addr *mac,
271 int network_apply(Manager *manager, Network *network, Link *link);
273 int config_parse_netdev(const char *unit, const char *filename, unsigned line,
274 const char *section, unsigned section_line, const char *lvalue,
275 int ltype, const char *rvalue, void *data, void *userdata);
277 int config_parse_domains(const char *unit,
278 const char *filename,
281 unsigned section_line,
288 int config_parse_tunnel(const char *unit,
289 const char *filename,
292 unsigned section_line,
299 int config_parse_tunnel_address(const char *unit,
300 const char *filename,
303 unsigned section_line,
310 int config_parse_vxlan_group_address(const char *unit,
311 const char *filename,
314 unsigned section_line,
322 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
325 int route_new_static(Network *network, unsigned section, Route **ret);
326 int route_new_dynamic(Route **ret, unsigned char rtm_protocol);
327 void route_free(Route *route);
328 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
329 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
332 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
333 #define _cleanup_route_free_ _cleanup_(route_freep)
335 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
336 const char *section, unsigned section_line, const char *lvalue,
337 int ltype, const char *rvalue, void *data, void *userdata);
339 int config_parse_destination(const char *unit, const char *filename, unsigned line,
340 const char *section, unsigned section_line, const char *lvalue,
341 int ltype, const char *rvalue, void *data, void *userdata);
343 int config_parse_route_priority(const char *unit, const char *filename, unsigned line,
344 const char *section, unsigned section_line, const char *lvalue,
345 int ltype, const char *rvalue, void *data, void *userdata);
347 int address_new_static(Network *network, unsigned section, Address **ret);
348 int address_new_dynamic(Address **ret);
349 void address_free(Address *address);
350 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
351 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
352 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
353 int address_establish(Address *address, Link *link);
354 int address_release(Address *address, Link *link);
355 bool address_equal(Address *a1, Address *a2);
357 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
358 #define _cleanup_address_free_ _cleanup_(address_freep)
360 int config_parse_address(const char *unit, const char *filename, unsigned line,
361 const char *section, unsigned section_line, const char *lvalue,
362 int ltype, const char *rvalue, void *data, void *userdata);
364 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
365 const char *section, unsigned section_line, const char *lvalue,
366 int ltype, const char *rvalue, void *data, void *userdata);
368 int config_parse_label(const char *unit, const char *filename, unsigned line,
369 const char *section, unsigned section_line, const char *lvalue,
370 int ltype, const char *rvalue, void *data, void *userdata);
372 /* Forwarding database table. */
373 int fdb_entry_configure(sd_rtnl *const rtnl, FdbEntry *const fdb_entry, const int ifindex);
374 void fdb_entry_free(FdbEntry *fdb_entry);
375 int fdb_entry_new_static(Network *const network, const unsigned section, FdbEntry **ret);
377 DEFINE_TRIVIAL_CLEANUP_FUNC(FdbEntry*, fdb_entry_free);
378 #define _cleanup_fdbentry_free_ _cleanup_(fdb_entry_freep)
380 int config_parse_fdb_hwaddr(const char *unit, const char *filename, unsigned line,
381 const char *section, unsigned section_line, const char *lvalue,
382 int ltype, const char *rvalue, void *data, void *userdata);
384 int config_parse_fdb_vlan_id(const char *unit, const char *filename, unsigned line,
385 const char *section, unsigned section_line, const char *lvalue,
386 int ltype, const char *rvalue, void *data, void *userdata);
390 int config_parse_dhcp(const char *unit, const char *filename, unsigned line,
391 const char *section, unsigned section_line, const char *lvalue,
392 int ltype, const char *rvalue, void *data, void *userdata);
396 const char* llmnr_support_to_string(LLMNRSupport i) _const_;
397 LLMNRSupport llmnr_support_from_string(const char *s) _pure_;
399 int config_parse_llmnr(const char *unit, const char *filename, unsigned line,
400 const char *section, unsigned section_line, const char *lvalue,
401 int ltype, const char *rvalue, void *data, void *userdata);
405 int address_pool_new(Manager *m, AddressPool **ret, int family, const union in_addr_union *u, unsigned prefixlen);
406 int address_pool_new_from_string(Manager *m, AddressPool **ret, int family, const char *p, unsigned prefixlen);
407 void address_pool_free(AddressPool *p);
409 int address_pool_acquire(AddressPool *p, unsigned prefixlen, union in_addr_union *found);
411 const char *address_family_boolean_to_string(AddressFamilyBoolean b) _const_;
412 AddressFamilyBoolean address_family_boolean_from_string(const char *s) _const_;
414 int config_parse_address_family_boolean(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
416 /* Opeartional State */
418 const char* link_operstate_to_string(LinkOperationalState s) _const_;
419 LinkOperationalState link_operstate_from_string(const char *s) _pure_;