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-ipv4ll.h"
33 #include "rtnl-util.h"
37 #include "condition-util.h"
39 #define CACHE_INFO_INFINITY_LIFE_TIME 0xFFFFFFFFU
41 typedef struct NetDev NetDev;
42 typedef struct Network Network;
43 typedef struct Link Link;
44 typedef struct Address Address;
45 typedef struct Route Route;
46 typedef struct Manager Manager;
48 typedef struct netdev_enslave_callback netdev_enslave_callback;
50 struct netdev_enslave_callback {
51 sd_rtnl_message_handler_t callback;
54 LIST_FIELDS(netdev_enslave_callback, callbacks);
57 typedef enum MacVlanMode {
58 NETDEV_MACVLAN_MODE_PRIVATE = MACVLAN_MODE_PRIVATE,
59 NETDEV_MACVLAN_MODE_VEPA = MACVLAN_MODE_VEPA,
60 NETDEV_MACVLAN_MODE_BRIDGE = MACVLAN_MODE_BRIDGE,
61 NETDEV_MACVLAN_MODE_PASSTHRU = MACVLAN_MODE_PASSTHRU,
62 _NETDEV_MACVLAN_MODE_MAX,
63 _NETDEV_MACVLAN_MODE_INVALID = -1
66 typedef enum NetDevKind {
72 _NETDEV_KIND_INVALID = -1
75 typedef enum NetDevState {
77 NETDEV_STATE_CREATING,
80 _NETDEV_STATE_INVALID = -1,
90 Condition *match_host;
91 Condition *match_virt;
92 Condition *match_kernel;
93 Condition *match_arch;
100 int32_t macvlan_mode;
105 LIST_HEAD(netdev_enslave_callback, callbacks);
113 struct ether_addr *match_mac;
118 Condition *match_host;
119 Condition *match_virt;
120 Condition *match_kernel;
121 Condition *match_arch;
132 bool dhcp_domainname;
136 LIST_HEAD(Address, static_addresses);
137 LIST_HEAD(Route, static_routes);
139 Hashmap *addresses_by_section;
140 Hashmap *routes_by_section;
144 LIST_FIELDS(Network, networks);
151 unsigned char family;
152 unsigned char prefixlen;
156 struct in_addr broadcast;
157 struct ifa_cacheinfo cinfo;
164 LIST_FIELDS(Address, static_addresses);
171 unsigned char family;
172 unsigned char dst_prefixlen;
186 LIST_FIELDS(Route, static_routes);
189 typedef enum LinkState {
190 LINK_STATE_INITIALIZING,
191 LINK_STATE_ENSLAVING,
192 LINK_STATE_SETTING_ADDRESSES,
193 LINK_STATE_SETTING_ROUTES,
194 LINK_STATE_CONFIGURED,
195 LINK_STATE_UNMANAGED,
198 _LINK_STATE_INVALID = -1
209 struct ether_addr mac;
210 struct udev_device *udev_device;
219 unsigned addr_messages;
220 unsigned route_messages;
223 sd_dhcp_client *dhcp_client;
224 sd_dhcp_lease *dhcp_lease;
226 uint16_t original_mtu;
235 struct udev_monitor *udev_monitor;
236 sd_event_source *udev_event_source;
237 sd_event_source *sigterm_event_source;
238 sd_event_source *sigint_event_source;
244 LIST_HEAD(Network, networks);
246 usec_t network_dirs_ts_usec;
249 extern const char* const network_dirs[];
253 int manager_new(Manager **ret);
254 void manager_free(Manager *m);
256 int manager_load_config(Manager *m);
257 bool manager_should_reload(Manager *m);
259 int manager_rtnl_enumerate_links(Manager *m);
261 int manager_rtnl_listen(Manager *m);
262 int manager_udev_listen(Manager *m);
263 int manager_bus_listen(Manager *m);
265 int manager_update_resolv_conf(Manager *m);
266 int manager_save(Manager *m);
268 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
269 #define _cleanup_manager_free_ _cleanup_(manager_freep)
273 int netdev_load(Manager *manager);
275 NetDev *netdev_unref(NetDev *netdev);
276 NetDev *netdev_ref(NetDev *netdev);
278 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref);
279 #define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp)
281 int netdev_get(Manager *manager, const char *name, NetDev **ret);
282 int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
283 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
285 const char *netdev_kind_to_string(NetDevKind d) _const_;
286 NetDevKind netdev_kind_from_string(const char *d) _pure_;
288 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
289 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
291 int config_parse_netdev_kind(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);
293 int config_parse_macvlan_mode(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);
296 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
300 int network_load(Manager *manager);
302 void network_free(Network *network);
304 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
305 #define _cleanup_network_free_ _cleanup_(network_freep)
307 int network_get(Manager *manager, struct udev_device *device,
308 const char *ifname, const struct ether_addr *mac,
310 int network_apply(Manager *manager, Network *network, Link *link);
312 int config_parse_netdev(const char *unit, const char *filename, unsigned line,
313 const char *section, unsigned section_line, const char *lvalue,
314 int ltype, const char *rvalue, void *data, void *userdata);
317 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
320 int route_new_static(Network *network, unsigned section, Route **ret);
321 int route_new_dynamic(Route **ret);
322 void route_free(Route *route);
323 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
324 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
327 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
328 #define _cleanup_route_free_ _cleanup_(route_freep)
330 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
331 const char *section, unsigned section_line, const char *lvalue,
332 int ltype, const char *rvalue, void *data, void *userdata);
334 int config_parse_destination(const char *unit, const char *filename, unsigned line,
335 const char *section, unsigned section_line, const char *lvalue,
336 int ltype, const char *rvalue, void *data, void *userdata);
339 int address_new_static(Network *network, unsigned section, Address **ret);
340 int address_new_dynamic(Address **ret);
341 void address_free(Address *address);
342 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
343 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
344 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
346 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
347 #define _cleanup_address_free_ _cleanup_(address_freep)
349 int config_parse_dns(const char *unit, const char *filename, unsigned line,
350 const char *section, unsigned section_line, const char *lvalue,
351 int ltype, const char *rvalue, void *data, void *userdata);
353 int config_parse_address(const char *unit, const char *filename, unsigned line,
354 const char *section, unsigned section_line, const char *lvalue,
355 int ltype, const char *rvalue, void *data, void *userdata);
357 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
358 const char *section, unsigned section_line, const char *lvalue,
359 int ltype, const char *rvalue, void *data, void *userdata);
361 int config_parse_label(const char *unit, const char *filename, unsigned line,
362 const char *section, unsigned section_line, const char *lvalue,
363 int ltype, const char *rvalue, void *data, void *userdata);
367 Link *link_unref(Link *link);
368 Link *link_ref(Link *link);
369 int link_get(Manager *m, int ifindex, Link **ret);
370 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
372 int link_update(Link *link, sd_rtnl_message *message);
374 int link_initialized(Link *link, struct udev_device *device);
376 int link_save(Link *link);
378 bool link_has_carrier(unsigned flags, uint8_t operstate);
380 const char* link_state_to_string(LinkState s) _const_;
381 LinkState link_state_from_string(const char *s) _pure_;
383 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
384 #define _cleanup_link_unref_ _cleanup_(link_unrefp)
386 /* Macros which append INTERFACE= to the message */
388 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
389 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
390 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
391 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
392 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
393 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
395 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
397 /* More macros which append INTERFACE= to the message */
399 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
400 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
401 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
402 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
403 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
404 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
406 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
408 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
409 #define ADDRESS_FMT_VAL(address) \
410 (address).s_addr & 0xFF, \
411 ((address).s_addr >> 8) & 0xFF, \
412 ((address).s_addr >> 16) & 0xFF, \
413 (address).s_addr >> 24