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_ENSLAVING,
189 LINK_STATE_SETTING_ADDRESSES,
190 LINK_STATE_SETTING_ROUTES,
191 LINK_STATE_CONFIGURED,
194 _LINK_STATE_INVALID = -1
203 struct ether_addr mac;
204 struct udev_device *udev_device;
212 unsigned addr_messages;
213 unsigned route_messages;
216 sd_dhcp_client *dhcp_client;
217 sd_dhcp_lease *dhcp_lease;
218 uint16_t original_mtu;
227 struct udev_monitor *udev_monitor;
228 sd_event_source *udev_event_source;
229 sd_event_source *sigterm_event_source;
230 sd_event_source *sigint_event_source;
234 LIST_HEAD(Network, networks);
236 usec_t network_dirs_ts_usec;
239 extern const char* const network_dirs[];
243 int manager_new(Manager **ret);
244 void manager_free(Manager *m);
246 int manager_load_config(Manager *m);
247 bool manager_should_reload(Manager *m);
249 int manager_udev_enumerate_links(Manager *m);
250 int manager_udev_listen(Manager *m);
252 int manager_rtnl_listen(Manager *m);
253 int manager_bus_listen(Manager *m);
255 int manager_update_resolv_conf(Manager *m);
257 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
258 #define _cleanup_manager_free_ _cleanup_(manager_freep)
262 int netdev_load(Manager *manager);
264 void netdev_free(NetDev *netdev);
266 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_free);
267 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
269 int netdev_get(Manager *manager, const char *name, NetDev **ret);
270 int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
271 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
273 const char *netdev_kind_to_string(NetDevKind d) _const_;
274 NetDevKind netdev_kind_from_string(const char *d) _pure_;
276 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
277 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
279 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);
281 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);
284 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
288 int network_load(Manager *manager);
290 void network_free(Network *network);
292 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
293 #define _cleanup_network_free_ _cleanup_(network_freep)
295 int network_get(Manager *manager, struct udev_device *device, Network **ret);
296 int network_apply(Manager *manager, Network *network, Link *link);
298 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
299 const char *section, unsigned section_line, const char *lvalue,
300 int ltype, const char *rvalue, void *data, void *userdata);
302 int config_parse_bond(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_vlan(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_macvlan(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);
315 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
318 int route_new_static(Network *network, unsigned section, Route **ret);
319 int route_new_dynamic(Route **ret);
320 void route_free(Route *route);
321 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
322 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
325 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
326 #define _cleanup_route_free_ _cleanup_(route_freep)
328 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
329 const char *section, unsigned section_line, const char *lvalue,
330 int ltype, const char *rvalue, void *data, void *userdata);
332 int config_parse_destination(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);
337 int address_new_static(Network *network, unsigned section, Address **ret);
338 int address_new_dynamic(Address **ret);
339 void address_free(Address *address);
340 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
341 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
342 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
344 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
345 #define _cleanup_address_free_ _cleanup_(address_freep)
347 int config_parse_dns(const char *unit, const char *filename, unsigned line,
348 const char *section, unsigned section_line, const char *lvalue,
349 int ltype, const char *rvalue, void *data, void *userdata);
351 int config_parse_address(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_broadcast(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_label(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);
365 int link_new(Manager *manager, struct udev_device *device, Link **ret);
366 void link_free(Link *link);
367 int link_get(Manager *m, int ifindex, Link **ret);
368 int link_add(Manager *manager, struct udev_device *device, Link **ret);
370 int link_update(Link *link, sd_rtnl_message *message);
372 int link_save(Link *link);
374 const char* link_state_to_string(LinkState s) _const_;
375 LinkState link_state_from_string(const char *s) _pure_;
377 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
378 #define _cleanup_link_free_ _cleanup_(link_freep)
380 /* Macros which append INTERFACE= to the message */
382 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
383 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
384 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
385 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
386 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
387 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
389 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
391 /* More macros which append INTERFACE= to the message */
393 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
394 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
395 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
396 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
397 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
398 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
400 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
402 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
403 #define ADDRESS_FMT_VAL(address) \
404 (address).s_addr & 0xFF, \
405 ((address).s_addr >> 8) & 0xFF, \
406 ((address).s_addr >> 16) & 0xFF, \
407 (address).s_addr >> 24