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,
81 _NETDEV_STATE_INVALID = -1,
91 Condition *match_host;
92 Condition *match_virt;
93 Condition *match_kernel;
94 Condition *match_arch;
101 int32_t macvlan_mode;
106 LIST_HEAD(netdev_enslave_callback, callbacks);
114 struct ether_addr *match_mac;
119 Condition *match_host;
120 Condition *match_virt;
121 Condition *match_kernel;
122 Condition *match_arch;
133 bool dhcp_domainname;
137 LIST_HEAD(Address, static_addresses);
138 LIST_HEAD(Route, static_routes);
140 Hashmap *addresses_by_section;
141 Hashmap *routes_by_section;
145 LIST_FIELDS(Network, networks);
152 unsigned char family;
153 unsigned char prefixlen;
157 struct in_addr broadcast;
158 struct ifa_cacheinfo cinfo;
165 LIST_FIELDS(Address, static_addresses);
172 unsigned char family;
173 unsigned char dst_prefixlen;
187 LIST_FIELDS(Route, static_routes);
190 typedef enum LinkState {
191 LINK_STATE_INITIALIZING,
192 LINK_STATE_ENSLAVING,
193 LINK_STATE_SETTING_ADDRESSES,
194 LINK_STATE_SETTING_ROUTES,
195 LINK_STATE_CONFIGURED,
196 LINK_STATE_UNMANAGED,
200 _LINK_STATE_INVALID = -1
211 struct ether_addr mac;
212 struct udev_device *udev_device;
221 unsigned addr_messages;
222 unsigned route_messages;
225 sd_dhcp_client *dhcp_client;
226 sd_dhcp_lease *dhcp_lease;
228 uint16_t original_mtu;
237 struct udev_monitor *udev_monitor;
238 sd_event_source *udev_event_source;
239 sd_event_source *sigterm_event_source;
240 sd_event_source *sigint_event_source;
246 LIST_HEAD(Network, networks);
248 usec_t network_dirs_ts_usec;
251 extern const char* const network_dirs[];
255 int manager_new(Manager **ret);
256 void manager_free(Manager *m);
258 int manager_load_config(Manager *m);
259 bool manager_should_reload(Manager *m);
261 int manager_rtnl_enumerate_links(Manager *m);
263 int manager_rtnl_listen(Manager *m);
264 int manager_udev_listen(Manager *m);
265 int manager_bus_listen(Manager *m);
267 int manager_update_resolv_conf(Manager *m);
268 int manager_save(Manager *m);
270 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
271 #define _cleanup_manager_free_ _cleanup_(manager_freep)
275 int netdev_load(Manager *manager);
276 void netdev_drop(NetDev *netdev);
278 NetDev *netdev_unref(NetDev *netdev);
279 NetDev *netdev_ref(NetDev *netdev);
281 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref);
282 #define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp)
284 int netdev_get(Manager *manager, const char *name, NetDev **ret);
285 int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
286 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
288 const char *netdev_kind_to_string(NetDevKind d) _const_;
289 NetDevKind netdev_kind_from_string(const char *d) _pure_;
291 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
292 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
294 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);
296 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);
299 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
303 int network_load(Manager *manager);
305 void network_free(Network *network);
307 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
308 #define _cleanup_network_free_ _cleanup_(network_freep)
310 int network_get(Manager *manager, struct udev_device *device,
311 const char *ifname, const struct ether_addr *mac,
313 int network_apply(Manager *manager, Network *network, Link *link);
315 int config_parse_netdev(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 Link *link_unref(Link *link);
371 Link *link_ref(Link *link);
372 int link_get(Manager *m, int ifindex, Link **ret);
373 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
374 void link_drop(Link *link);
376 int link_update(Link *link, sd_rtnl_message *message);
378 int link_initialized(Link *link, struct udev_device *device);
380 int link_save(Link *link);
382 bool link_has_carrier(unsigned flags, uint8_t operstate);
384 const char* link_state_to_string(LinkState s) _const_;
385 LinkState link_state_from_string(const char *s) _pure_;
387 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
388 #define _cleanup_link_unref_ _cleanup_(link_unrefp)
390 /* Macros which append INTERFACE= to the message */
392 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
393 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
394 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
395 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
396 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
397 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
399 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
401 /* More macros which append INTERFACE= to the message */
403 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
404 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
405 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
406 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
407 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
408 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
410 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
412 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
413 #define ADDRESS_FMT_VAL(address) \
414 (address).s_addr & 0xFF, \
415 ((address).s_addr >> 8) & 0xFF, \
416 ((address).s_addr >> 16) & 0xFF, \
417 (address).s_addr >> 24