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;
215 unsigned addr_messages;
216 unsigned route_messages;
219 sd_dhcp_client *dhcp_client;
220 sd_dhcp_lease *dhcp_lease;
221 uint16_t original_mtu;
230 struct udev_monitor *udev_monitor;
231 sd_event_source *udev_event_source;
232 sd_event_source *sigterm_event_source;
233 sd_event_source *sigint_event_source;
237 LIST_HEAD(Network, networks);
239 usec_t network_dirs_ts_usec;
242 extern const char* const network_dirs[];
246 int manager_new(Manager **ret);
247 void manager_free(Manager *m);
249 int manager_load_config(Manager *m);
250 bool manager_should_reload(Manager *m);
252 int manager_rtnl_enumerate_links(Manager *m);
254 int manager_rtnl_listen(Manager *m);
255 int manager_udev_listen(Manager *m);
256 int manager_bus_listen(Manager *m);
258 int manager_update_resolv_conf(Manager *m);
260 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
261 #define _cleanup_manager_free_ _cleanup_(manager_freep)
265 int netdev_load(Manager *manager);
267 void netdev_free(NetDev *netdev);
269 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_free);
270 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
272 int netdev_get(Manager *manager, const char *name, NetDev **ret);
273 int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
274 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
276 const char *netdev_kind_to_string(NetDevKind d) _const_;
277 NetDevKind netdev_kind_from_string(const char *d) _pure_;
279 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
280 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
282 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);
284 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);
287 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
291 int network_load(Manager *manager);
293 void network_free(Network *network);
295 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
296 #define _cleanup_network_free_ _cleanup_(network_freep)
298 int network_get(Manager *manager, struct udev_device *device,
299 const char *ifname, const struct ether_addr *mac,
301 int network_apply(Manager *manager, Network *network, Link *link);
303 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
304 const char *section, unsigned section_line, const char *lvalue,
305 int ltype, const char *rvalue, void *data, void *userdata);
307 int config_parse_bond(const char *unit, const char *filename, unsigned line,
308 const char *section, unsigned section_line, const char *lvalue,
309 int ltype, const char *rvalue, void *data, void *userdata);
311 int config_parse_vlan(const char *unit, const char *filename, unsigned line,
312 const char *section, unsigned section_line, const char *lvalue,
313 int ltype, const char *rvalue, void *data, void *userdata);
315 int config_parse_macvlan(const char *unit, const char *filename, unsigned line,
316 const char *section, unsigned section_line, const char *lvalue,
317 int ltype, const char *rvalue, void *data, void *userdata);
320 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
323 int route_new_static(Network *network, unsigned section, Route **ret);
324 int route_new_dynamic(Route **ret);
325 void route_free(Route *route);
326 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
327 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
330 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
331 #define _cleanup_route_free_ _cleanup_(route_freep)
333 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
334 const char *section, unsigned section_line, const char *lvalue,
335 int ltype, const char *rvalue, void *data, void *userdata);
337 int config_parse_destination(const char *unit, const char *filename, unsigned line,
338 const char *section, unsigned section_line, const char *lvalue,
339 int ltype, const char *rvalue, void *data, void *userdata);
342 int address_new_static(Network *network, unsigned section, Address **ret);
343 int address_new_dynamic(Address **ret);
344 void address_free(Address *address);
345 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
346 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
347 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
349 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
350 #define _cleanup_address_free_ _cleanup_(address_freep)
352 int config_parse_dns(const char *unit, const char *filename, unsigned line,
353 const char *section, unsigned section_line, const char *lvalue,
354 int ltype, const char *rvalue, void *data, void *userdata);
356 int config_parse_address(const char *unit, const char *filename, unsigned line,
357 const char *section, unsigned section_line, const char *lvalue,
358 int ltype, const char *rvalue, void *data, void *userdata);
360 int config_parse_broadcast(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_label(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);
370 void link_free(Link *link);
371 int link_get(Manager *m, int ifindex, Link **ret);
372 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
374 int link_update(Link *link, sd_rtnl_message *message);
376 int link_initialized(Link *link, struct udev_device *device);
378 int link_save(Link *link);
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_free);
384 #define _cleanup_link_free_ _cleanup_(link_freep)
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