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>
29 #include "sd-dhcp-client.h"
32 #include "rtnl-util.h"
36 typedef struct Bridge Bridge;
37 typedef struct Network Network;
38 typedef struct Link Link;
39 typedef struct Address Address;
40 typedef struct Route Route;
41 typedef struct Manager Manager;
43 typedef struct bridge_join_callback bridge_join_callback;
45 struct bridge_join_callback {
46 sd_rtnl_message_handler_t callback;
49 LIST_FIELDS(bridge_join_callback, callbacks);
52 typedef enum BridgeState {
54 BRIDGE_STATE_CREATING,
57 _BRIDGE_STATE_INVALID = -1,
71 LIST_HEAD(bridge_join_callback, callbacks);
79 struct ether_addr *match_mac;
90 LIST_HEAD(Address, static_addresses);
91 LIST_HEAD(Route, static_routes);
94 Hashmap *addresses_by_section;
95 Hashmap *routes_by_section;
97 LIST_FIELDS(Network, networks);
104 unsigned char family;
105 unsigned char prefixlen;
108 struct in_addr netmask;
115 LIST_FIELDS(Address, static_addresses);
122 unsigned char family;
123 unsigned char dst_family;
124 unsigned char dst_prefixlen;
136 LIST_FIELDS(Route, static_routes);
139 typedef enum LinkState {
140 LINK_STATE_JOINING_BRIDGE,
141 LINK_STATE_SETTING_ADDRESSES,
142 LINK_STATE_SETTING_ROUTES,
143 LINK_STATE_CONFIGURED,
146 _LINK_STATE_INVALID = -1
154 struct ether_addr mac;
161 Address *dhcp_address;
166 unsigned addr_messages;
167 unsigned route_messages;
169 sd_dhcp_client *dhcp;
176 struct udev_monitor *udev_monitor;
177 sd_event_source *udev_event_source;
181 LIST_HEAD(Network, networks);
183 usec_t network_dirs_ts_usec;
186 extern const char* const network_dirs[];
190 int manager_new(Manager **ret);
191 void manager_free(Manager *m);
193 int manager_load_config(Manager *m);
194 bool manager_should_reload(Manager *m);
196 int manager_udev_enumerate_links(Manager *m);
197 int manager_udev_listen(Manager *m);
199 int manager_rtnl_listen(Manager *m);
201 int manager_update_resolv_conf(Manager *m);
203 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
204 #define _cleanup_manager_free_ _cleanup_(manager_freep)
208 int bridge_load(Manager *manager);
210 void bridge_free(Bridge *bridge);
212 DEFINE_TRIVIAL_CLEANUP_FUNC(Bridge*, bridge_free);
213 #define _cleanup_bridge_free_ _cleanup_(bridge_freep)
215 int bridge_get(Manager *manager, const char *name, Bridge **ret);
216 int bridge_set_link(Manager *m, Link *link);
217 int bridge_join(Bridge *bridge, Link *link, sd_rtnl_message_handler_t cb);
221 int network_load(Manager *manager);
223 void network_free(Network *network);
225 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
226 #define _cleanup_network_free_ _cleanup_(network_freep)
228 int network_get(Manager *manager, struct udev_device *device, Network **ret);
229 int network_apply(Manager *manager, Network *network, Link *link);
231 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
232 const char *section, unsigned section_line, const char *lvalue,
233 int ltype, const char *rvalue, void *data, void *userdata);
237 const struct ConfigPerfItem* network_gperf_lookup(const char *key, unsigned length);
240 int route_new_static(Network *network, unsigned section, Route **ret);
241 int route_new_dynamic(Route **ret);
242 void route_free(Route *route);
243 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
245 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
246 #define _cleanup_route_free_ _cleanup_(route_freep)
248 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
249 const char *section, unsigned section_line, const char *lvalue,
250 int ltype, const char *rvalue, void *data, void *userdata);
252 int config_parse_destination(const char *unit, const char *filename, unsigned line,
253 const char *section, unsigned section_line, const char *lvalue,
254 int ltype, const char *rvalue, void *data, void *userdata);
257 int address_new_static(Network *network, unsigned section, Address **ret);
258 int address_new_dynamic(Address **ret);
259 void address_free(Address *address);
260 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
261 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
263 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
264 #define _cleanup_address_free_ _cleanup_(address_freep)
266 int config_parse_dns(const char *unit, const char *filename, unsigned line,
267 const char *section, unsigned section_line, const char *lvalue,
268 int ltype, const char *rvalue, void *data, void *userdata);
270 int config_parse_address(const char *unit, const char *filename, unsigned line,
271 const char *section, unsigned section_line, const char *lvalue,
272 int ltype, const char *rvalue, void *data, void *userdata);
274 int config_parse_label(const char *unit, const char *filename, unsigned line,
275 const char *section, unsigned section_line, const char *lvalue,
276 int ltype, const char *rvalue, void *data, void *userdata);
280 int link_new(Manager *manager, struct udev_device *device, Link **ret);
281 void link_free(Link *link);
282 int link_add(Manager *manager, struct udev_device *device, Link **ret);
283 int link_configure(Link *link);
285 int link_update(Link *link, sd_rtnl_message *message);
287 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
288 #define _cleanup_link_free_ _cleanup_(link_freep)
290 /* Macros which append INTERFACE= to the message */
292 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
293 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
294 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
295 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
296 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
297 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
299 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
301 /* More macros which append INTERFACE= to the message */
303 #define log_full_bridge(level, bridge, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", bridge->name, "%s: " fmt, bridge->name, ##__VA_ARGS__)
304 #define log_debug_bridge(bridge, ...) log_full_bridge(LOG_DEBUG, bridge, ##__VA_ARGS__)
305 #define log_info_bridge(bridge, ...) log_full_bridge(LOG_INFO, bridge, ##__VA_ARGS__)
306 #define log_notice_bridge(bridge, ...) log_full_bridge(LOG_NOTICE, bridge, ##__VA_ARGS__)
307 #define log_warning_bridge(bridge, ...) log_full_bridge(LOG_WARNING, bridge,## __VA_ARGS__)
308 #define log_error_bridge(bridge, ...) log_full_bridge(LOG_ERR, bridge, ##__VA_ARGS__)
310 #define log_struct_bridge(level, bridge, ...) log_struct(level, "INTERFACE=%s", bridge->name, __VA_ARGS__)
312 #define BRIDGE(bridge) "INTERFACE=%s", bridge->name
313 #define ADDRESS_FMT_VAL(address) \
314 (address).s_addr & 0xFF, \
315 ((address).s_addr >> 8) & 0xFF, \
316 ((address).s_addr >> 16) & 0xFF, \
317 (address).s_addr >> 24