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,
88 Condition *match_host;
89 Condition *match_virt;
90 Condition *match_kernel;
91 Condition *match_arch;
103 LIST_HEAD(netdev_enslave_callback, callbacks);
111 struct ether_addr *match_mac;
116 Condition *match_host;
117 Condition *match_virt;
118 Condition *match_kernel;
119 Condition *match_arch;
130 bool dhcp_domainname;
134 LIST_HEAD(Address, static_addresses);
135 LIST_HEAD(Route, static_routes);
137 Hashmap *addresses_by_section;
138 Hashmap *routes_by_section;
142 LIST_FIELDS(Network, networks);
149 unsigned char family;
150 unsigned char prefixlen;
154 struct in_addr broadcast;
155 struct ifa_cacheinfo cinfo;
162 LIST_FIELDS(Address, static_addresses);
169 unsigned char family;
170 unsigned char dst_prefixlen;
184 LIST_FIELDS(Route, static_routes);
187 typedef enum LinkState {
188 LINK_STATE_INITIALIZING,
189 LINK_STATE_ENSLAVING,
190 LINK_STATE_SETTING_ADDRESSES,
191 LINK_STATE_SETTING_ROUTES,
192 LINK_STATE_CONFIGURED,
193 LINK_STATE_UNMANAGED,
196 _LINK_STATE_INVALID = -1
205 struct ether_addr mac;
206 struct udev_device *udev_device;
214 unsigned addr_messages;
215 unsigned route_messages;
218 sd_dhcp_client *dhcp_client;
219 sd_dhcp_lease *dhcp_lease;
220 uint16_t original_mtu;
229 struct udev_monitor *udev_monitor;
230 sd_event_source *udev_event_source;
231 sd_event_source *sigterm_event_source;
232 sd_event_source *sigint_event_source;
236 LIST_HEAD(Network, networks);
238 usec_t network_dirs_ts_usec;
241 extern const char* const network_dirs[];
245 int manager_new(Manager **ret);
246 void manager_free(Manager *m);
248 int manager_load_config(Manager *m);
249 bool manager_should_reload(Manager *m);
251 int manager_rtnl_enumerate_links(Manager *m);
253 int manager_rtnl_listen(Manager *m);
254 int manager_udev_listen(Manager *m);
255 int manager_bus_listen(Manager *m);
257 int manager_update_resolv_conf(Manager *m);
259 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
260 #define _cleanup_manager_free_ _cleanup_(manager_freep)
264 int netdev_load(Manager *manager);
266 void netdev_free(NetDev *netdev);
268 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_free);
269 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
271 int netdev_get(Manager *manager, const char *name, NetDev **ret);
272 int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
273 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
275 const char *netdev_kind_to_string(NetDevKind d) _const_;
276 NetDevKind netdev_kind_from_string(const char *d) _pure_;
278 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
279 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
281 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);
283 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);
286 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
290 int network_load(Manager *manager);
292 void network_free(Network *network);
294 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
295 #define _cleanup_network_free_ _cleanup_(network_freep)
297 int network_get(Manager *manager, struct udev_device *device,
298 const char *ifname, const struct ether_addr *mac,
300 int network_apply(Manager *manager, Network *network, Link *link);
302 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
303 const char *section, unsigned section_line, const char *lvalue,
304 int ltype, const char *rvalue, void *data, void *userdata);
306 int config_parse_bond(const char *unit, const char *filename, unsigned line,
307 const char *section, unsigned section_line, const char *lvalue,
308 int ltype, const char *rvalue, void *data, void *userdata);
310 int config_parse_vlan(const char *unit, const char *filename, unsigned line,
311 const char *section, unsigned section_line, const char *lvalue,
312 int ltype, const char *rvalue, void *data, void *userdata);
314 int config_parse_macvlan(const char *unit, const char *filename, unsigned line,
315 const char *section, unsigned section_line, const char *lvalue,
316 int ltype, const char *rvalue, void *data, void *userdata);
319 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
322 int route_new_static(Network *network, unsigned section, Route **ret);
323 int route_new_dynamic(Route **ret);
324 void route_free(Route *route);
325 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
326 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
329 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
330 #define _cleanup_route_free_ _cleanup_(route_freep)
332 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
333 const char *section, unsigned section_line, const char *lvalue,
334 int ltype, const char *rvalue, void *data, void *userdata);
336 int config_parse_destination(const char *unit, const char *filename, unsigned line,
337 const char *section, unsigned section_line, const char *lvalue,
338 int ltype, const char *rvalue, void *data, void *userdata);
341 int address_new_static(Network *network, unsigned section, Address **ret);
342 int address_new_dynamic(Address **ret);
343 void address_free(Address *address);
344 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
345 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
346 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
348 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
349 #define _cleanup_address_free_ _cleanup_(address_freep)
351 int config_parse_dns(const char *unit, const char *filename, unsigned line,
352 const char *section, unsigned section_line, const char *lvalue,
353 int ltype, const char *rvalue, void *data, void *userdata);
355 int config_parse_address(const char *unit, const char *filename, unsigned line,
356 const char *section, unsigned section_line, const char *lvalue,
357 int ltype, const char *rvalue, void *data, void *userdata);
359 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
360 const char *section, unsigned section_line, const char *lvalue,
361 int ltype, const char *rvalue, void *data, void *userdata);
363 int config_parse_label(const char *unit, const char *filename, unsigned line,
364 const char *section, unsigned section_line, const char *lvalue,
365 int ltype, const char *rvalue, void *data, void *userdata);
369 void link_free(Link *link);
370 int link_get(Manager *m, int ifindex, Link **ret);
371 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
373 int link_update(Link *link, sd_rtnl_message *message);
375 int link_initialized(Link *link, struct udev_device *device);
377 int link_save(Link *link);
379 const char* link_state_to_string(LinkState s) _const_;
380 LinkState link_state_from_string(const char *s) _pure_;
382 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
383 #define _cleanup_link_free_ _cleanup_(link_freep)
385 /* Macros which append INTERFACE= to the message */
387 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
388 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
389 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
390 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
391 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
392 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
394 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
396 /* More macros which append INTERFACE= to the message */
398 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
399 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
400 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
401 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
402 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
403 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
405 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
407 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
408 #define ADDRESS_FMT_VAL(address) \
409 (address).s_addr & 0xFF, \
410 ((address).s_addr >> 8) & 0xFF, \
411 ((address).s_addr >> 16) & 0xFF, \
412 (address).s_addr >> 24