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;
94 LIST_HEAD(Address, static_addresses);
95 LIST_HEAD(Route, static_routes);
98 Hashmap *addresses_by_section;
99 Hashmap *routes_by_section;
101 LIST_FIELDS(Network, networks);
108 unsigned char family;
109 unsigned char prefixlen;
112 struct in_addr netmask;
119 LIST_FIELDS(Address, static_addresses);
126 unsigned char family;
127 unsigned char dst_family;
128 unsigned char dst_prefixlen;
140 LIST_FIELDS(Route, static_routes);
143 typedef enum LinkState {
144 LINK_STATE_JOINING_BRIDGE,
145 LINK_STATE_SETTING_ADDRESSES,
146 LINK_STATE_SETTING_ROUTES,
147 LINK_STATE_CONFIGURED,
150 _LINK_STATE_INVALID = -1
158 struct ether_addr mac;
165 Address *dhcp_address;
167 uint16_t original_mtu;
171 unsigned addr_messages;
172 unsigned route_messages;
174 sd_dhcp_client *dhcp;
182 struct udev_monitor *udev_monitor;
183 sd_event_source *udev_event_source;
187 LIST_HEAD(Network, networks);
189 usec_t network_dirs_ts_usec;
192 extern const char* const network_dirs[];
196 int manager_new(Manager **ret);
197 void manager_free(Manager *m);
199 int manager_load_config(Manager *m);
200 bool manager_should_reload(Manager *m);
202 int manager_udev_enumerate_links(Manager *m);
203 int manager_udev_listen(Manager *m);
205 int manager_rtnl_listen(Manager *m);
206 int manager_bus_listen(Manager *m);
208 int manager_update_resolv_conf(Manager *m);
210 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
211 #define _cleanup_manager_free_ _cleanup_(manager_freep)
215 int bridge_load(Manager *manager);
217 void bridge_free(Bridge *bridge);
219 DEFINE_TRIVIAL_CLEANUP_FUNC(Bridge*, bridge_free);
220 #define _cleanup_bridge_free_ _cleanup_(bridge_freep)
222 int bridge_get(Manager *manager, const char *name, Bridge **ret);
223 int bridge_set_link(Manager *m, Link *link);
224 int bridge_join(Bridge *bridge, Link *link, sd_rtnl_message_handler_t cb);
228 int network_load(Manager *manager);
230 void network_free(Network *network);
232 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
233 #define _cleanup_network_free_ _cleanup_(network_freep)
235 int network_get(Manager *manager, struct udev_device *device, Network **ret);
236 int network_apply(Manager *manager, Network *network, Link *link);
238 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
239 const char *section, unsigned section_line, const char *lvalue,
240 int ltype, const char *rvalue, void *data, void *userdata);
244 const struct ConfigPerfItem* network_gperf_lookup(const char *key, unsigned length);
247 int route_new_static(Network *network, unsigned section, Route **ret);
248 int route_new_dynamic(Route **ret);
249 void route_free(Route *route);
250 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
252 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
253 #define _cleanup_route_free_ _cleanup_(route_freep)
255 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
256 const char *section, unsigned section_line, const char *lvalue,
257 int ltype, const char *rvalue, void *data, void *userdata);
259 int config_parse_destination(const char *unit, const char *filename, unsigned line,
260 const char *section, unsigned section_line, const char *lvalue,
261 int ltype, const char *rvalue, void *data, void *userdata);
264 int address_new_static(Network *network, unsigned section, Address **ret);
265 int address_new_dynamic(Address **ret);
266 void address_free(Address *address);
267 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
268 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
270 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
271 #define _cleanup_address_free_ _cleanup_(address_freep)
273 int config_parse_dns(const char *unit, const char *filename, unsigned line,
274 const char *section, unsigned section_line, const char *lvalue,
275 int ltype, const char *rvalue, void *data, void *userdata);
277 int config_parse_address(const char *unit, const char *filename, unsigned line,
278 const char *section, unsigned section_line, const char *lvalue,
279 int ltype, const char *rvalue, void *data, void *userdata);
281 int config_parse_label(const char *unit, const char *filename, unsigned line,
282 const char *section, unsigned section_line, const char *lvalue,
283 int ltype, const char *rvalue, void *data, void *userdata);
287 int link_new(Manager *manager, struct udev_device *device, Link **ret);
288 void link_free(Link *link);
289 int link_add(Manager *manager, struct udev_device *device, Link **ret);
290 int link_configure(Link *link);
292 int link_update(Link *link, sd_rtnl_message *message);
294 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
295 #define _cleanup_link_free_ _cleanup_(link_freep)
297 /* Macros which append INTERFACE= to the message */
299 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
300 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
301 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
302 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
303 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
304 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
306 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
308 /* More macros which append INTERFACE= to the message */
310 #define log_full_bridge(level, bridge, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", bridge->name, "%s: " fmt, bridge->name, ##__VA_ARGS__)
311 #define log_debug_bridge(bridge, ...) log_full_bridge(LOG_DEBUG, bridge, ##__VA_ARGS__)
312 #define log_info_bridge(bridge, ...) log_full_bridge(LOG_INFO, bridge, ##__VA_ARGS__)
313 #define log_notice_bridge(bridge, ...) log_full_bridge(LOG_NOTICE, bridge, ##__VA_ARGS__)
314 #define log_warning_bridge(bridge, ...) log_full_bridge(LOG_WARNING, bridge,## __VA_ARGS__)
315 #define log_error_bridge(bridge, ...) log_full_bridge(LOG_ERR, bridge, ##__VA_ARGS__)
317 #define log_struct_bridge(level, bridge, ...) log_struct(level, "INTERFACE=%s", bridge->name, __VA_ARGS__)
319 #define BRIDGE(bridge) "INTERFACE=%s", bridge->name
320 #define ADDRESS_FMT_VAL(address) \
321 (address).s_addr & 0xFF, \
322 ((address).s_addr >> 8) & 0xFF, \
323 ((address).s_addr >> 16) & 0xFF, \
324 (address).s_addr >> 24