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>
25 #include <linux/rtnetlink.h>
30 #include "sd-dhcp-client.h"
33 #include "rtnl-util.h"
37 typedef struct Bridge Bridge;
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 bridge_join_callback bridge_join_callback;
46 struct bridge_join_callback {
47 sd_rtnl_message_handler_t callback;
50 LIST_FIELDS(bridge_join_callback, callbacks);
53 typedef enum BridgeState {
55 BRIDGE_STATE_CREATING,
58 _BRIDGE_STATE_INVALID = -1,
72 LIST_HEAD(bridge_join_callback, callbacks);
80 struct ether_addr *match_mac;
93 LIST_HEAD(Address, static_addresses);
94 LIST_HEAD(Route, static_routes);
97 Hashmap *addresses_by_section;
98 Hashmap *routes_by_section;
100 LIST_FIELDS(Network, networks);
107 unsigned char family;
108 unsigned char prefixlen;
111 struct in_addr netmask;
118 LIST_FIELDS(Address, static_addresses);
125 unsigned char family;
126 unsigned char dst_family;
127 unsigned char dst_prefixlen;
139 LIST_FIELDS(Route, static_routes);
142 typedef enum LinkState {
143 LINK_STATE_JOINING_BRIDGE,
144 LINK_STATE_SETTING_ADDRESSES,
145 LINK_STATE_SETTING_ROUTES,
146 LINK_STATE_CONFIGURED,
149 _LINK_STATE_INVALID = -1
157 struct ether_addr mac;
164 Address *dhcp_address;
166 uint16_t original_mtu;
170 unsigned addr_messages;
171 unsigned route_messages;
173 sd_dhcp_client *dhcp;
181 struct udev_monitor *udev_monitor;
182 sd_event_source *udev_event_source;
186 LIST_HEAD(Network, networks);
188 usec_t network_dirs_ts_usec;
191 extern const char* const network_dirs[];
195 int manager_new(Manager **ret);
196 void manager_free(Manager *m);
198 int manager_load_config(Manager *m);
199 bool manager_should_reload(Manager *m);
201 int manager_udev_enumerate_links(Manager *m);
202 int manager_udev_listen(Manager *m);
204 int manager_rtnl_listen(Manager *m);
205 int manager_bus_listen(Manager *m);
207 int manager_update_resolv_conf(Manager *m);
209 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
210 #define _cleanup_manager_free_ _cleanup_(manager_freep)
214 int bridge_load(Manager *manager);
216 void bridge_free(Bridge *bridge);
218 DEFINE_TRIVIAL_CLEANUP_FUNC(Bridge*, bridge_free);
219 #define _cleanup_bridge_free_ _cleanup_(bridge_freep)
221 int bridge_get(Manager *manager, const char *name, Bridge **ret);
222 int bridge_set_link(Manager *m, Link *link);
223 int bridge_join(Bridge *bridge, Link *link, sd_rtnl_message_handler_t cb);
227 int network_load(Manager *manager);
229 void network_free(Network *network);
231 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
232 #define _cleanup_network_free_ _cleanup_(network_freep)
234 int network_get(Manager *manager, struct udev_device *device, Network **ret);
235 int network_apply(Manager *manager, Network *network, Link *link);
237 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
238 const char *section, unsigned section_line, const char *lvalue,
239 int ltype, const char *rvalue, void *data, void *userdata);
243 const struct ConfigPerfItem* network_gperf_lookup(const char *key, unsigned length);
246 int route_new_static(Network *network, unsigned section, Route **ret);
247 int route_new_dynamic(Route **ret);
248 void route_free(Route *route);
249 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
251 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
252 #define _cleanup_route_free_ _cleanup_(route_freep)
254 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
255 const char *section, unsigned section_line, const char *lvalue,
256 int ltype, const char *rvalue, void *data, void *userdata);
258 int config_parse_destination(const char *unit, const char *filename, unsigned line,
259 const char *section, unsigned section_line, const char *lvalue,
260 int ltype, const char *rvalue, void *data, void *userdata);
263 int address_new_static(Network *network, unsigned section, Address **ret);
264 int address_new_dynamic(Address **ret);
265 void address_free(Address *address);
266 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
267 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
269 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
270 #define _cleanup_address_free_ _cleanup_(address_freep)
272 int config_parse_dns(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_address(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);
280 int config_parse_label(const char *unit, const char *filename, unsigned line,
281 const char *section, unsigned section_line, const char *lvalue,
282 int ltype, const char *rvalue, void *data, void *userdata);
286 int link_new(Manager *manager, struct udev_device *device, Link **ret);
287 void link_free(Link *link);
288 int link_add(Manager *manager, struct udev_device *device, Link **ret);
289 int link_configure(Link *link);
291 int link_update(Link *link, sd_rtnl_message *message);
293 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
294 #define _cleanup_link_free_ _cleanup_(link_freep)
296 /* Macros which append INTERFACE= to the message */
298 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
299 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
300 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
301 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
302 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
303 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
305 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
307 /* More macros which append INTERFACE= to the message */
309 #define log_full_bridge(level, bridge, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", bridge->name, "%s: " fmt, bridge->name, ##__VA_ARGS__)
310 #define log_debug_bridge(bridge, ...) log_full_bridge(LOG_DEBUG, bridge, ##__VA_ARGS__)
311 #define log_info_bridge(bridge, ...) log_full_bridge(LOG_INFO, bridge, ##__VA_ARGS__)
312 #define log_notice_bridge(bridge, ...) log_full_bridge(LOG_NOTICE, bridge, ##__VA_ARGS__)
313 #define log_warning_bridge(bridge, ...) log_full_bridge(LOG_WARNING, bridge,## __VA_ARGS__)
314 #define log_error_bridge(bridge, ...) log_full_bridge(LOG_ERR, bridge, ##__VA_ARGS__)
316 #define log_struct_bridge(level, bridge, ...) log_struct(level, "INTERFACE=%s", bridge->name, __VA_ARGS__)
318 #define BRIDGE(bridge) "INTERFACE=%s", bridge->name
319 #define ADDRESS_FMT_VAL(address) \
320 (address).s_addr & 0xFF, \
321 ((address).s_addr >> 8) & 0xFF, \
322 ((address).s_addr >> 16) & 0xFF, \
323 (address).s_addr >> 24