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 typedef struct NetDev NetDev;
40 typedef struct Network Network;
41 typedef struct Link Link;
42 typedef struct Address Address;
43 typedef struct Route Route;
44 typedef struct Manager Manager;
46 typedef struct netdev_enslave_callback netdev_enslave_callback;
48 struct netdev_enslave_callback {
49 sd_rtnl_message_handler_t callback;
52 LIST_FIELDS(netdev_enslave_callback, callbacks);
55 typedef enum MacVlanMode {
56 NETDEV_MACVLAN_MODE_PRIVATE = MACVLAN_MODE_PRIVATE,
57 NETDEV_MACVLAN_MODE_VEPA = MACVLAN_MODE_VEPA,
58 NETDEV_MACVLAN_MODE_BRIDGE = MACVLAN_MODE_BRIDGE,
59 NETDEV_MACVLAN_MODE_PASSTHRU = MACVLAN_MODE_PASSTHRU,
60 _NETDEV_MACVLAN_MODE_MAX,
61 _NETDEV_MACVLAN_MODE_INVALID = -1
64 typedef enum NetDevKind {
70 _NETDEV_KIND_INVALID = -1
73 typedef enum NetDevState {
75 NETDEV_STATE_CREATING,
78 _NETDEV_STATE_INVALID = -1,
86 Condition *match_host;
87 Condition *match_virt;
88 Condition *match_kernel;
89 Condition *match_arch;
101 LIST_HEAD(netdev_enslave_callback, callbacks);
109 struct ether_addr *match_mac;
114 Condition *match_host;
115 Condition *match_virt;
116 Condition *match_kernel;
117 Condition *match_arch;
128 bool dhcp_domainname;
132 LIST_HEAD(Address, static_addresses);
133 LIST_HEAD(Route, static_routes);
135 Hashmap *addresses_by_section;
136 Hashmap *routes_by_section;
140 LIST_FIELDS(Network, networks);
147 unsigned char family;
148 unsigned char prefixlen;
152 struct in_addr broadcast;
159 LIST_FIELDS(Address, static_addresses);
166 unsigned char family;
167 unsigned char dst_prefixlen;
181 LIST_FIELDS(Route, static_routes);
184 typedef enum LinkState {
185 LINK_STATE_ENSLAVING,
186 LINK_STATE_SETTING_ADDRESSES,
187 LINK_STATE_SETTING_ROUTES,
188 LINK_STATE_CONFIGURED,
191 _LINK_STATE_INVALID = -1
200 struct ether_addr mac;
208 unsigned addr_messages;
209 unsigned route_messages;
212 sd_dhcp_client *dhcp_client;
213 sd_dhcp_lease *dhcp_lease;
214 uint16_t original_mtu;
223 struct udev_monitor *udev_monitor;
224 sd_event_source *udev_event_source;
225 sd_event_source *sigterm_event_source;
226 sd_event_source *sigint_event_source;
230 LIST_HEAD(Network, networks);
232 usec_t network_dirs_ts_usec;
235 extern const char* const network_dirs[];
239 int manager_new(Manager **ret);
240 void manager_free(Manager *m);
242 int manager_load_config(Manager *m);
243 bool manager_should_reload(Manager *m);
245 int manager_udev_enumerate_links(Manager *m);
246 int manager_udev_listen(Manager *m);
248 int manager_rtnl_listen(Manager *m);
249 int manager_bus_listen(Manager *m);
251 int manager_update_resolv_conf(Manager *m);
253 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
254 #define _cleanup_manager_free_ _cleanup_(manager_freep)
258 int netdev_load(Manager *manager);
260 void netdev_free(NetDev *netdev);
262 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_free);
263 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
265 int netdev_get(Manager *manager, const char *name, NetDev **ret);
266 int netdev_set_ifindex(NetDev *netdev, int ifindex);
267 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
269 const char *netdev_kind_to_string(NetDevKind d) _const_;
270 NetDevKind netdev_kind_from_string(const char *d) _pure_;
272 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
273 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
275 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);
277 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);
280 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
284 int network_load(Manager *manager);
286 void network_free(Network *network);
288 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
289 #define _cleanup_network_free_ _cleanup_(network_freep)
291 int network_get(Manager *manager, struct udev_device *device, Network **ret);
292 int network_apply(Manager *manager, Network *network, Link *link);
294 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
295 const char *section, unsigned section_line, const char *lvalue,
296 int ltype, const char *rvalue, void *data, void *userdata);
298 int config_parse_bond(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_vlan(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_macvlan(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);
311 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
314 int route_new_static(Network *network, unsigned section, Route **ret);
315 int route_new_dynamic(Route **ret);
316 void route_free(Route *route);
317 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
318 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
321 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
322 #define _cleanup_route_free_ _cleanup_(route_freep)
324 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
325 const char *section, unsigned section_line, const char *lvalue,
326 int ltype, const char *rvalue, void *data, void *userdata);
328 int config_parse_destination(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);
333 int address_new_static(Network *network, unsigned section, Address **ret);
334 int address_new_dynamic(Address **ret);
335 void address_free(Address *address);
336 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
337 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
339 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
340 #define _cleanup_address_free_ _cleanup_(address_freep)
342 int config_parse_dns(const char *unit, const char *filename, unsigned line,
343 const char *section, unsigned section_line, const char *lvalue,
344 int ltype, const char *rvalue, void *data, void *userdata);
346 int config_parse_address(const char *unit, const char *filename, unsigned line,
347 const char *section, unsigned section_line, const char *lvalue,
348 int ltype, const char *rvalue, void *data, void *userdata);
350 int config_parse_broadcast(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_label(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);
360 int link_new(Manager *manager, struct udev_device *device, Link **ret);
361 void link_free(Link *link);
362 int link_get(Manager *m, int ifindex, Link **ret);
363 int link_add(Manager *manager, struct udev_device *device, Link **ret);
365 int link_update(Link *link, sd_rtnl_message *message);
367 int link_save(Link *link);
369 const char* link_state_to_string(LinkState s) _const_;
370 LinkState link_state_from_string(const char *s) _pure_;
372 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
373 #define _cleanup_link_free_ _cleanup_(link_freep)
375 /* Macros which append INTERFACE= to the message */
377 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
378 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
379 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
380 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
381 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
382 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
384 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
386 /* More macros which append INTERFACE= to the message */
388 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
389 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
390 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
391 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
392 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
393 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
395 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
397 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
398 #define ADDRESS_FMT_VAL(address) \
399 (address).s_addr & 0xFF, \
400 ((address).s_addr >> 8) & 0xFF, \
401 ((address).s_addr >> 16) & 0xFF, \
402 (address).s_addr >> 24