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,
195 _LINK_STATE_INVALID = -1
204 struct ether_addr mac;
205 struct udev_device *udev_device;
213 unsigned addr_messages;
214 unsigned route_messages;
217 sd_dhcp_client *dhcp_client;
218 sd_dhcp_lease *dhcp_lease;
219 uint16_t original_mtu;
228 struct udev_monitor *udev_monitor;
229 sd_event_source *udev_event_source;
230 sd_event_source *sigterm_event_source;
231 sd_event_source *sigint_event_source;
235 LIST_HEAD(Network, networks);
237 usec_t network_dirs_ts_usec;
240 extern const char* const network_dirs[];
244 int manager_new(Manager **ret);
245 void manager_free(Manager *m);
247 int manager_load_config(Manager *m);
248 bool manager_should_reload(Manager *m);
250 int manager_rtnl_enumerate_links(Manager *m);
252 int manager_rtnl_listen(Manager *m);
253 int manager_udev_listen(Manager *m);
254 int manager_bus_listen(Manager *m);
256 int manager_update_resolv_conf(Manager *m);
258 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
259 #define _cleanup_manager_free_ _cleanup_(manager_freep)
263 int netdev_load(Manager *manager);
265 void netdev_free(NetDev *netdev);
267 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_free);
268 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
270 int netdev_get(Manager *manager, const char *name, NetDev **ret);
271 int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
272 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
274 const char *netdev_kind_to_string(NetDevKind d) _const_;
275 NetDevKind netdev_kind_from_string(const char *d) _pure_;
277 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
278 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
280 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);
282 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);
285 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
289 int network_load(Manager *manager);
291 void network_free(Network *network);
293 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
294 #define _cleanup_network_free_ _cleanup_(network_freep)
296 int network_get(Manager *manager, struct udev_device *device,
297 const char *ifname, const struct ether_addr *mac,
299 int network_apply(Manager *manager, Network *network, Link *link);
301 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
302 const char *section, unsigned section_line, const char *lvalue,
303 int ltype, const char *rvalue, void *data, void *userdata);
305 int config_parse_bond(const char *unit, const char *filename, unsigned line,
306 const char *section, unsigned section_line, const char *lvalue,
307 int ltype, const char *rvalue, void *data, void *userdata);
309 int config_parse_vlan(const char *unit, const char *filename, unsigned line,
310 const char *section, unsigned section_line, const char *lvalue,
311 int ltype, const char *rvalue, void *data, void *userdata);
313 int config_parse_macvlan(const char *unit, const char *filename, unsigned line,
314 const char *section, unsigned section_line, const char *lvalue,
315 int ltype, const char *rvalue, void *data, void *userdata);
318 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
321 int route_new_static(Network *network, unsigned section, Route **ret);
322 int route_new_dynamic(Route **ret);
323 void route_free(Route *route);
324 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
325 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
328 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
329 #define _cleanup_route_free_ _cleanup_(route_freep)
331 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
332 const char *section, unsigned section_line, const char *lvalue,
333 int ltype, const char *rvalue, void *data, void *userdata);
335 int config_parse_destination(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);
340 int address_new_static(Network *network, unsigned section, Address **ret);
341 int address_new_dynamic(Address **ret);
342 void address_free(Address *address);
343 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
344 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
345 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
347 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
348 #define _cleanup_address_free_ _cleanup_(address_freep)
350 int config_parse_dns(const char *unit, const char *filename, unsigned line,
351 const char *section, unsigned section_line, const char *lvalue,
352 int ltype, const char *rvalue, void *data, void *userdata);
354 int config_parse_address(const char *unit, const char *filename, unsigned line,
355 const char *section, unsigned section_line, const char *lvalue,
356 int ltype, const char *rvalue, void *data, void *userdata);
358 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
359 const char *section, unsigned section_line, const char *lvalue,
360 int ltype, const char *rvalue, void *data, void *userdata);
362 int config_parse_label(const char *unit, const char *filename, unsigned line,
363 const char *section, unsigned section_line, const char *lvalue,
364 int ltype, const char *rvalue, void *data, void *userdata);
368 void link_free(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 const char* link_state_to_string(LinkState s) _const_;
379 LinkState link_state_from_string(const char *s) _pure_;
381 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
382 #define _cleanup_link_free_ _cleanup_(link_freep)
384 /* Macros which append INTERFACE= to the message */
386 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
387 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
388 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
389 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
390 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
391 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
393 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
395 /* More macros which append INTERFACE= to the message */
397 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
398 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
399 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
400 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
401 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
402 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
404 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
406 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
407 #define ADDRESS_FMT_VAL(address) \
408 (address).s_addr & 0xFF, \
409 ((address).s_addr >> 8) & 0xFF, \
410 ((address).s_addr >> 16) & 0xFF, \
411 (address).s_addr >> 24