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;
89 LIST_HEAD(Address, static_addresses);
90 LIST_HEAD(Route, static_routes);
93 Hashmap *addresses_by_section;
94 Hashmap *routes_by_section;
96 LIST_FIELDS(Network, networks);
103 unsigned char family;
104 unsigned char prefixlen;
107 struct in_addr netmask;
114 LIST_FIELDS(Address, static_addresses);
121 unsigned char family;
122 unsigned char dst_family;
123 unsigned char dst_prefixlen;
135 LIST_FIELDS(Route, static_routes);
138 typedef enum LinkState {
139 LINK_STATE_JOINING_BRIDGE,
140 LINK_STATE_SETTING_ADDRESSES,
141 LINK_STATE_SETTING_ROUTES,
142 LINK_STATE_CONFIGURED,
145 _LINK_STATE_INVALID = -1
153 struct ether_addr mac;
160 Address *dhcp_address;
165 unsigned addr_messages;
166 unsigned route_messages;
168 sd_dhcp_client *dhcp;
175 struct udev_monitor *udev_monitor;
176 sd_event_source *udev_event_source;
180 LIST_HEAD(Network, networks);
182 usec_t network_dirs_ts_usec;
185 extern const char* const network_dirs[];
189 int manager_new(Manager **ret);
190 void manager_free(Manager *m);
192 int manager_load_config(Manager *m);
193 bool manager_should_reload(Manager *m);
195 int manager_udev_enumerate_links(Manager *m);
196 int manager_udev_listen(Manager *m);
198 int manager_rtnl_listen(Manager *m);
200 int manager_update_resolv_conf(Manager *m);
202 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
203 #define _cleanup_manager_free_ _cleanup_(manager_freep)
207 int bridge_load(Manager *manager);
209 void bridge_free(Bridge *bridge);
211 DEFINE_TRIVIAL_CLEANUP_FUNC(Bridge*, bridge_free);
212 #define _cleanup_bridge_free_ _cleanup_(bridge_freep)
214 int bridge_get(Manager *manager, const char *name, Bridge **ret);
215 int bridge_set_link(Manager *m, Link *link);
216 int bridge_join(Bridge *bridge, Link *link, sd_rtnl_message_handler_t cb);
220 int network_load(Manager *manager);
222 void network_free(Network *network);
224 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
225 #define _cleanup_network_free_ _cleanup_(network_freep)
227 int network_get(Manager *manager, struct udev_device *device, Network **ret);
228 int network_apply(Manager *manager, Network *network, Link *link);
230 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
231 const char *section, unsigned section_line, const char *lvalue,
232 int ltype, const char *rvalue, void *data, void *userdata);
236 const struct ConfigPerfItem* network_gperf_lookup(const char *key, unsigned length);
239 int route_new_static(Network *network, unsigned section, Route **ret);
240 int route_new_dynamic(Route **ret);
241 void route_free(Route *route);
242 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
244 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
245 #define _cleanup_route_free_ _cleanup_(route_freep)
247 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
248 const char *section, unsigned section_line, const char *lvalue,
249 int ltype, const char *rvalue, void *data, void *userdata);
251 int config_parse_destination(const char *unit, const char *filename, unsigned line,
252 const char *section, unsigned section_line, const char *lvalue,
253 int ltype, const char *rvalue, void *data, void *userdata);
256 int address_new_static(Network *network, unsigned section, Address **ret);
257 int address_new_dynamic(Address **ret);
258 void address_free(Address *address);
259 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
260 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
262 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
263 #define _cleanup_address_free_ _cleanup_(address_freep)
265 int config_parse_dns(const char *unit, const char *filename, unsigned line,
266 const char *section, unsigned section_line, const char *lvalue,
267 int ltype, const char *rvalue, void *data, void *userdata);
269 int config_parse_address(const char *unit, const char *filename, unsigned line,
270 const char *section, unsigned section_line, const char *lvalue,
271 int ltype, const char *rvalue, void *data, void *userdata);
273 int config_parse_label(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);
279 int link_new(Manager *manager, struct udev_device *device, Link **ret);
280 void link_free(Link *link);
281 int link_add(Manager *manager, struct udev_device *device, Link **ret);
282 int link_configure(Link *link);
284 int link_update(Link *link, sd_rtnl_message *message);
286 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
287 #define _cleanup_link_free_ _cleanup_(link_freep)
289 /* Macros which append INTERFACE= to the message */
291 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
292 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
293 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
294 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
295 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
296 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
298 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
300 /* More macros which append INTERFACE= to the message */
302 #define log_full_bridge(level, bridge, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", bridge->name, "%s: " fmt, bridge->name, ##__VA_ARGS__)
303 #define log_debug_bridge(bridge, ...) log_full_bridge(LOG_DEBUG, bridge, ##__VA_ARGS__)
304 #define log_info_bridge(bridge, ...) log_full_bridge(LOG_INFO, bridge, ##__VA_ARGS__)
305 #define log_notice_bridge(bridge, ...) log_full_bridge(LOG_NOTICE, bridge, ##__VA_ARGS__)
306 #define log_warning_bridge(bridge, ...) log_full_bridge(LOG_WARNING, bridge,## __VA_ARGS__)
307 #define log_error_bridge(bridge, ...) log_full_bridge(LOG_ERR, bridge, ##__VA_ARGS__)
309 #define log_struct_bridge(level, bridge, ...) log_struct(level, "INTERFACE=%s", bridge->name, __VA_ARGS__)
311 #define BRIDGE(bridge) "INTERFACE=%s", bridge->name
312 #define ADDRESS_FMT_VAL(address) \
313 (address).s_addr & 0xFF, \
314 ((address).s_addr >> 8) & 0xFF, \
315 ((address).s_addr >> 16) & 0xFF, \
316 (address).s_addr >> 24