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 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 {
57 _NETDEV_KIND_INVALID = -1
60 typedef enum NetdevState {
62 NETDEV_STATE_CREATING,
65 _NETDEV_STATE_INVALID = -1,
80 LIST_HEAD(netdev_enslave_callback, callbacks);
88 struct ether_addr *match_mac;
101 bool dhcp_domainname;
103 LIST_HEAD(Address, static_addresses);
104 LIST_HEAD(Route, static_routes);
107 Hashmap *addresses_by_section;
108 Hashmap *routes_by_section;
110 LIST_FIELDS(Network, networks);
117 unsigned char family;
118 unsigned char prefixlen;
121 struct in_addr netmask;
128 LIST_FIELDS(Address, static_addresses);
135 unsigned char family;
136 unsigned char dst_family;
137 unsigned char dst_prefixlen;
149 LIST_FIELDS(Route, static_routes);
152 typedef enum LinkState {
153 LINK_STATE_ENSLAVING,
154 LINK_STATE_SETTING_ADDRESSES,
155 LINK_STATE_SETTING_ROUTES,
156 LINK_STATE_CONFIGURED,
159 _LINK_STATE_INVALID = -1
167 struct ether_addr mac;
174 Address *dhcp_address;
176 uint16_t original_mtu;
180 unsigned addr_messages;
181 unsigned route_messages;
184 sd_dhcp_client *dhcp;
192 struct udev_monitor *udev_monitor;
193 sd_event_source *udev_event_source;
197 LIST_HEAD(Network, networks);
199 usec_t network_dirs_ts_usec;
202 extern const char* const network_dirs[];
206 int manager_new(Manager **ret);
207 void manager_free(Manager *m);
209 int manager_load_config(Manager *m);
210 bool manager_should_reload(Manager *m);
212 int manager_udev_enumerate_links(Manager *m);
213 int manager_udev_listen(Manager *m);
215 int manager_rtnl_listen(Manager *m);
216 int manager_bus_listen(Manager *m);
218 int manager_update_resolv_conf(Manager *m);
220 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
221 #define _cleanup_manager_free_ _cleanup_(manager_freep)
225 int netdev_load(Manager *manager);
227 void netdev_free(Netdev *netdev);
229 DEFINE_TRIVIAL_CLEANUP_FUNC(Netdev*, netdev_free);
230 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
232 int netdev_get(Manager *manager, const char *name, Netdev **ret);
233 int netdev_set_link(Manager *m, NetdevKind kind, Link *link);
234 int netdev_enslave(Netdev *netdev, Link *link, sd_rtnl_message_handler_t cb);
236 const char *netdev_kind_to_string(NetdevKind d) _const_;
237 NetdevKind netdev_kind_from_string(const char *d) _pure_;
239 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);
243 int network_load(Manager *manager);
245 void network_free(Network *network);
247 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
248 #define _cleanup_network_free_ _cleanup_(network_freep)
250 int network_get(Manager *manager, struct udev_device *device, Network **ret);
251 int network_apply(Manager *manager, Network *network, Link *link);
253 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
254 const char *section, unsigned section_line, const char *lvalue,
255 int ltype, const char *rvalue, void *data, void *userdata);
257 int config_parse_bond(const char *unit, const char *filename, unsigned line,
258 const char *section, unsigned section_line, const char *lvalue,
259 int ltype, const char *rvalue, void *data, void *userdata);
263 const struct ConfigPerfItem* network_gperf_lookup(const char *key, unsigned length);
266 int route_new_static(Network *network, unsigned section, Route **ret);
267 int route_new_dynamic(Route **ret);
268 void route_free(Route *route);
269 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
271 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
272 #define _cleanup_route_free_ _cleanup_(route_freep)
274 int config_parse_gateway(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);
278 int config_parse_destination(const char *unit, const char *filename, unsigned line,
279 const char *section, unsigned section_line, const char *lvalue,
280 int ltype, const char *rvalue, void *data, void *userdata);
283 int address_new_static(Network *network, unsigned section, Address **ret);
284 int address_new_dynamic(Address **ret);
285 void address_free(Address *address);
286 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
287 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
289 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
290 #define _cleanup_address_free_ _cleanup_(address_freep)
292 int config_parse_dns(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_address(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);
300 int config_parse_label(const char *unit, const char *filename, unsigned line,
301 const char *section, unsigned section_line, const char *lvalue,
302 int ltype, const char *rvalue, void *data, void *userdata);
306 int link_new(Manager *manager, struct udev_device *device, Link **ret);
307 void link_free(Link *link);
308 int link_add(Manager *manager, struct udev_device *device, Link **ret);
309 int link_configure(Link *link);
311 int link_update(Link *link, sd_rtnl_message *message);
313 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
314 #define _cleanup_link_free_ _cleanup_(link_freep)
316 /* Macros which append INTERFACE= to the message */
318 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
319 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
320 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
321 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
322 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
323 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
325 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
327 /* More macros which append INTERFACE= to the message */
329 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
330 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
331 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
332 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
333 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
334 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
336 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
338 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
339 #define ADDRESS_FMT_VAL(address) \
340 (address).s_addr & 0xFF, \
341 ((address).s_addr >> 8) & 0xFF, \
342 ((address).s_addr >> 16) & 0xFF, \
343 (address).s_addr >> 24