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 {
58 _NETDEV_KIND_INVALID = -1
61 typedef enum NetdevState {
63 NETDEV_STATE_CREATING,
66 _NETDEV_STATE_INVALID = -1,
83 LIST_HEAD(netdev_enslave_callback, callbacks);
91 struct ether_addr *match_mac;
105 bool dhcp_domainname;
107 LIST_HEAD(Address, static_addresses);
108 LIST_HEAD(Route, static_routes);
111 Hashmap *addresses_by_section;
112 Hashmap *routes_by_section;
114 LIST_FIELDS(Network, networks);
121 unsigned char family;
122 unsigned char prefixlen;
125 struct in_addr netmask;
132 LIST_FIELDS(Address, static_addresses);
139 unsigned char family;
140 unsigned char dst_family;
141 unsigned char dst_prefixlen;
153 LIST_FIELDS(Route, static_routes);
156 typedef enum LinkState {
157 LINK_STATE_ENSLAVING,
158 LINK_STATE_SETTING_ADDRESSES,
159 LINK_STATE_SETTING_ROUTES,
160 LINK_STATE_CONFIGURED,
163 _LINK_STATE_INVALID = -1
171 struct ether_addr mac;
178 Address *dhcp_address;
180 uint16_t original_mtu;
184 unsigned addr_messages;
185 unsigned route_messages;
188 sd_dhcp_client *dhcp;
196 struct udev_monitor *udev_monitor;
197 sd_event_source *udev_event_source;
201 LIST_HEAD(Network, networks);
203 usec_t network_dirs_ts_usec;
206 extern const char* const network_dirs[];
210 int manager_new(Manager **ret);
211 void manager_free(Manager *m);
213 int manager_load_config(Manager *m);
214 bool manager_should_reload(Manager *m);
216 int manager_udev_enumerate_links(Manager *m);
217 int manager_udev_listen(Manager *m);
219 int manager_rtnl_listen(Manager *m);
220 int manager_bus_listen(Manager *m);
222 int manager_update_resolv_conf(Manager *m);
224 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
225 #define _cleanup_manager_free_ _cleanup_(manager_freep)
229 int netdev_load(Manager *manager);
231 void netdev_free(Netdev *netdev);
233 DEFINE_TRIVIAL_CLEANUP_FUNC(Netdev*, netdev_free);
234 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
236 int netdev_get(Manager *manager, const char *name, Netdev **ret);
237 int netdev_set_link(Manager *m, NetdevKind kind, Link *link);
238 int netdev_enslave(Netdev *netdev, Link *link, sd_rtnl_message_handler_t cb);
240 const char *netdev_kind_to_string(NetdevKind d) _const_;
241 NetdevKind netdev_kind_from_string(const char *d) _pure_;
243 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);
247 int network_load(Manager *manager);
249 void network_free(Network *network);
251 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
252 #define _cleanup_network_free_ _cleanup_(network_freep)
254 int network_get(Manager *manager, struct udev_device *device, Network **ret);
255 int network_apply(Manager *manager, Network *network, Link *link);
257 int config_parse_bridge(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);
261 int config_parse_bond(const char *unit, const char *filename, unsigned line,
262 const char *section, unsigned section_line, const char *lvalue,
263 int ltype, const char *rvalue, void *data, void *userdata);
265 int config_parse_vlan(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);
271 const struct ConfigPerfItem* network_gperf_lookup(const char *key, unsigned length);
274 int route_new_static(Network *network, unsigned section, Route **ret);
275 int route_new_dynamic(Route **ret);
276 void route_free(Route *route);
277 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
279 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
280 #define _cleanup_route_free_ _cleanup_(route_freep)
282 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
283 const char *section, unsigned section_line, const char *lvalue,
284 int ltype, const char *rvalue, void *data, void *userdata);
286 int config_parse_destination(const char *unit, const char *filename, unsigned line,
287 const char *section, unsigned section_line, const char *lvalue,
288 int ltype, const char *rvalue, void *data, void *userdata);
291 int address_new_static(Network *network, unsigned section, Address **ret);
292 int address_new_dynamic(Address **ret);
293 void address_free(Address *address);
294 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
295 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
297 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
298 #define _cleanup_address_free_ _cleanup_(address_freep)
300 int config_parse_dns(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);
304 int config_parse_address(const char *unit, const char *filename, unsigned line,
305 const char *section, unsigned section_line, const char *lvalue,
306 int ltype, const char *rvalue, void *data, void *userdata);
308 int config_parse_label(const char *unit, const char *filename, unsigned line,
309 const char *section, unsigned section_line, const char *lvalue,
310 int ltype, const char *rvalue, void *data, void *userdata);
314 int link_new(Manager *manager, struct udev_device *device, Link **ret);
315 void link_free(Link *link);
316 int link_add(Manager *manager, struct udev_device *device, Link **ret);
317 int link_configure(Link *link);
319 int link_update(Link *link, sd_rtnl_message *message);
321 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
322 #define _cleanup_link_free_ _cleanup_(link_freep)
324 /* Macros which append INTERFACE= to the message */
326 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
327 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
328 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
329 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
330 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
331 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
333 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
335 /* More macros which append INTERFACE= to the message */
337 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
338 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
339 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
340 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
341 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
342 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
344 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
346 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
347 #define ADDRESS_FMT_VAL(address) \
348 (address).s_addr & 0xFF, \
349 ((address).s_addr >> 8) & 0xFF, \
350 ((address).s_addr >> 16) & 0xFF, \
351 (address).s_addr >> 24