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>
29 #include "sd-dhcp-client.h"
32 #include "rtnl-util.h"
35 #include "condition-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,
74 Condition *condition_host;
75 Condition *condition_virt;
76 Condition *condition_kernel;
87 LIST_HEAD(netdev_enslave_callback, callbacks);
95 struct ether_addr *match_mac;
100 Condition *match_host;
101 Condition *match_virt;
102 Condition *match_kernel;
112 bool dhcp_domainname;
115 LIST_HEAD(Address, static_addresses);
116 LIST_HEAD(Route, static_routes);
119 Hashmap *addresses_by_section;
120 Hashmap *routes_by_section;
122 LIST_FIELDS(Network, networks);
129 unsigned char family;
130 unsigned char prefixlen;
133 struct in_addr broadcast;
140 LIST_FIELDS(Address, static_addresses);
147 unsigned char family;
148 unsigned char dst_prefixlen;
160 LIST_FIELDS(Route, static_routes);
163 typedef enum LinkState {
164 LINK_STATE_ENSLAVING,
165 LINK_STATE_SETTING_ADDRESSES,
166 LINK_STATE_SETTING_ROUTES,
167 LINK_STATE_CONFIGURED,
170 _LINK_STATE_INVALID = -1
178 struct ether_addr mac;
186 unsigned addr_messages;
187 unsigned route_messages;
190 sd_dhcp_client *dhcp_client;
191 sd_dhcp_lease *dhcp_lease;
192 uint16_t original_mtu;
200 struct udev_monitor *udev_monitor;
201 sd_event_source *udev_event_source;
205 LIST_HEAD(Network, networks);
207 usec_t network_dirs_ts_usec;
210 extern const char* const network_dirs[];
214 int manager_new(Manager **ret);
215 void manager_free(Manager *m);
217 int manager_load_config(Manager *m);
218 bool manager_should_reload(Manager *m);
220 int manager_udev_enumerate_links(Manager *m);
221 int manager_udev_listen(Manager *m);
223 int manager_rtnl_listen(Manager *m);
224 int manager_bus_listen(Manager *m);
226 int manager_update_resolv_conf(Manager *m);
228 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
229 #define _cleanup_manager_free_ _cleanup_(manager_freep)
233 int netdev_load(Manager *manager);
235 void netdev_free(NetDev *netdev);
237 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_free);
238 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
240 int netdev_get(Manager *manager, const char *name, NetDev **ret);
241 int netdev_set_ifindex(NetDev *netdev, int ifindex);
242 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
244 const char *netdev_kind_to_string(NetDevKind d) _const_;
245 NetDevKind netdev_kind_from_string(const char *d) _pure_;
247 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);
250 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
254 int network_load(Manager *manager);
256 void network_free(Network *network);
258 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
259 #define _cleanup_network_free_ _cleanup_(network_freep)
261 int network_get(Manager *manager, struct udev_device *device, Network **ret);
262 int network_apply(Manager *manager, Network *network, Link *link);
264 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
265 const char *section, unsigned section_line, const char *lvalue,
266 int ltype, const char *rvalue, void *data, void *userdata);
268 int config_parse_bond(const char *unit, const char *filename, unsigned line,
269 const char *section, unsigned section_line, const char *lvalue,
270 int ltype, const char *rvalue, void *data, void *userdata);
272 int config_parse_vlan(const char *unit, const char *filename, unsigned line,
273 const char *section, unsigned section_line, const char *lvalue,
274 int ltype, const char *rvalue, void *data, void *userdata);
277 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
280 int route_new_static(Network *network, unsigned section, Route **ret);
281 int route_new_dynamic(Route **ret);
282 void route_free(Route *route);
283 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
285 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
286 #define _cleanup_route_free_ _cleanup_(route_freep)
288 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
289 const char *section, unsigned section_line, const char *lvalue,
290 int ltype, const char *rvalue, void *data, void *userdata);
292 int config_parse_destination(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);
297 int address_new_static(Network *network, unsigned section, Address **ret);
298 int address_new_dynamic(Address **ret);
299 void address_free(Address *address);
300 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
301 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
303 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
304 #define _cleanup_address_free_ _cleanup_(address_freep)
306 int config_parse_dns(const char *unit, const char *filename, unsigned line,
307 const char *section, unsigned section_line, const char *lvalue,
308 int ltype, const char *rvalue, void *data, void *userdata);
310 int config_parse_address(const char *unit, const char *filename, unsigned line,
311 const char *section, unsigned section_line, const char *lvalue,
312 int ltype, const char *rvalue, void *data, void *userdata);
314 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
315 const char *section, unsigned section_line, const char *lvalue,
316 int ltype, const char *rvalue, void *data, void *userdata);
318 int config_parse_label(const char *unit, const char *filename, unsigned line,
319 const char *section, unsigned section_line, const char *lvalue,
320 int ltype, const char *rvalue, void *data, void *userdata);
324 int link_new(Manager *manager, struct udev_device *device, Link **ret);
325 void link_free(Link *link);
326 int link_get(Manager *m, int ifindex, Link **ret);
327 int link_add(Manager *manager, struct udev_device *device, Link **ret);
328 int link_configure(Link *link);
330 int link_update(Link *link, sd_rtnl_message *message);
332 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
333 #define _cleanup_link_free_ _cleanup_(link_freep)
335 /* Macros which append INTERFACE= to the message */
337 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
338 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
339 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
340 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
341 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
342 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
344 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
346 /* More macros which append INTERFACE= to the message */
348 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
349 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
350 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
351 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
352 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
353 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
355 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
357 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
358 #define ADDRESS_FMT_VAL(address) \
359 (address).s_addr & 0xFF, \
360 ((address).s_addr >> 8) & 0xFF, \
361 ((address).s_addr >> 16) & 0xFF, \
362 (address).s_addr >> 24