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"
32 #include "rtnl-util.h"
35 #include "condition-util.h"
37 typedef struct NetDev NetDev;
38 typedef struct Network Network;
39 typedef struct Link Link;
40 typedef struct Address Address;
41 typedef struct Route Route;
42 typedef struct Manager Manager;
44 typedef struct netdev_enslave_callback netdev_enslave_callback;
46 struct netdev_enslave_callback {
47 sd_rtnl_message_handler_t callback;
50 LIST_FIELDS(netdev_enslave_callback, callbacks);
53 typedef enum NetDevKind {
58 _NETDEV_KIND_INVALID = -1
61 typedef enum NetDevState {
63 NETDEV_STATE_CREATING,
66 _NETDEV_STATE_INVALID = -1,
74 Condition *match_host;
75 Condition *match_virt;
76 Condition *match_kernel;
77 Condition *match_arch;
88 LIST_HEAD(netdev_enslave_callback, callbacks);
96 struct ether_addr *match_mac;
101 Condition *match_host;
102 Condition *match_virt;
103 Condition *match_kernel;
104 Condition *match_arch;
114 bool dhcp_domainname;
117 LIST_HEAD(Address, static_addresses);
118 LIST_HEAD(Route, static_routes);
121 Hashmap *addresses_by_section;
122 Hashmap *routes_by_section;
124 LIST_FIELDS(Network, networks);
131 unsigned char family;
132 unsigned char prefixlen;
135 struct in_addr broadcast;
142 LIST_FIELDS(Address, static_addresses);
149 unsigned char family;
150 unsigned char dst_prefixlen;
162 LIST_FIELDS(Route, static_routes);
165 typedef enum LinkState {
166 LINK_STATE_ENSLAVING,
167 LINK_STATE_SETTING_ADDRESSES,
168 LINK_STATE_SETTING_ROUTES,
169 LINK_STATE_CONFIGURED,
172 _LINK_STATE_INVALID = -1
180 struct ether_addr mac;
188 unsigned addr_messages;
189 unsigned route_messages;
192 sd_dhcp_client *dhcp_client;
193 sd_dhcp_lease *dhcp_lease;
194 uint16_t original_mtu;
202 struct udev_monitor *udev_monitor;
203 sd_event_source *udev_event_source;
204 sd_event_source *sigterm_event_source;
205 sd_event_source *sigint_event_source;
209 LIST_HEAD(Network, networks);
211 usec_t network_dirs_ts_usec;
214 extern const char* const network_dirs[];
218 int manager_new(Manager **ret);
219 void manager_free(Manager *m);
221 int manager_load_config(Manager *m);
222 bool manager_should_reload(Manager *m);
224 int manager_udev_enumerate_links(Manager *m);
225 int manager_udev_listen(Manager *m);
227 int manager_rtnl_listen(Manager *m);
228 int manager_bus_listen(Manager *m);
230 int manager_update_resolv_conf(Manager *m);
232 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
233 #define _cleanup_manager_free_ _cleanup_(manager_freep)
237 int netdev_load(Manager *manager);
239 void netdev_free(NetDev *netdev);
241 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_free);
242 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
244 int netdev_get(Manager *manager, const char *name, NetDev **ret);
245 int netdev_set_ifindex(NetDev *netdev, int ifindex);
246 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
248 const char *netdev_kind_to_string(NetDevKind d) _const_;
249 NetDevKind netdev_kind_from_string(const char *d) _pure_;
251 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);
254 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
258 int network_load(Manager *manager);
260 void network_free(Network *network);
262 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
263 #define _cleanup_network_free_ _cleanup_(network_freep)
265 int network_get(Manager *manager, struct udev_device *device, Network **ret);
266 int network_apply(Manager *manager, Network *network, Link *link);
268 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
269 const char *section, unsigned section_line, const char *lvalue,
270 int ltype, const char *rvalue, void *data, void *userdata);
272 int config_parse_bond(const char *unit, const char *filename, unsigned line,
273 const char *section, unsigned section_line, const char *lvalue,
274 int ltype, const char *rvalue, void *data, void *userdata);
276 int config_parse_vlan(const char *unit, const char *filename, unsigned line,
277 const char *section, unsigned section_line, const char *lvalue,
278 int ltype, const char *rvalue, void *data, void *userdata);
281 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
284 int route_new_static(Network *network, unsigned section, Route **ret);
285 int route_new_dynamic(Route **ret);
286 void route_free(Route *route);
287 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
289 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
290 #define _cleanup_route_free_ _cleanup_(route_freep)
292 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
293 const char *section, unsigned section_line, const char *lvalue,
294 int ltype, const char *rvalue, void *data, void *userdata);
296 int config_parse_destination(const char *unit, const char *filename, unsigned line,
297 const char *section, unsigned section_line, const char *lvalue,
298 int ltype, const char *rvalue, void *data, void *userdata);
301 int address_new_static(Network *network, unsigned section, Address **ret);
302 int address_new_dynamic(Address **ret);
303 void address_free(Address *address);
304 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
305 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
307 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
308 #define _cleanup_address_free_ _cleanup_(address_freep)
310 int config_parse_dns(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);
314 int config_parse_address(const char *unit, const char *filename, unsigned line,
315 const char *section, unsigned section_line, const char *lvalue,
316 int ltype, const char *rvalue, void *data, void *userdata);
318 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
319 const char *section, unsigned section_line, const char *lvalue,
320 int ltype, const char *rvalue, void *data, void *userdata);
322 int config_parse_label(const char *unit, const char *filename, unsigned line,
323 const char *section, unsigned section_line, const char *lvalue,
324 int ltype, const char *rvalue, void *data, void *userdata);
328 int link_new(Manager *manager, struct udev_device *device, Link **ret);
329 void link_free(Link *link);
330 int link_get(Manager *m, int ifindex, Link **ret);
331 int link_add(Manager *manager, struct udev_device *device, Link **ret);
332 int link_configure(Link *link);
334 int link_update(Link *link, sd_rtnl_message *message);
336 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
337 #define _cleanup_link_free_ _cleanup_(link_freep)
339 /* Macros which append INTERFACE= to the message */
341 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
342 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
343 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
344 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
345 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
346 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
348 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
350 /* More macros which append INTERFACE= to the message */
352 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
353 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
354 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
355 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
356 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
357 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
359 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
361 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
362 #define ADDRESS_FMT_VAL(address) \
363 (address).s_addr & 0xFF, \
364 ((address).s_addr >> 8) & 0xFF, \
365 ((address).s_addr >> 16) & 0xFF, \
366 (address).s_addr >> 24