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 MacVlanMode {
54 NETDEV_MACVLAN_MODE_PRIVATE = MACVLAN_MODE_PRIVATE,
55 NETDEV_MACVLAN_MODE_VEPA = MACVLAN_MODE_VEPA,
56 NETDEV_MACVLAN_MODE_BRIDGE = MACVLAN_MODE_BRIDGE,
57 NETDEV_MACVLAN_MODE_PASSTHRU = MACVLAN_MODE_PASSTHRU,
58 _NETDEV_MACVLAN_MODE_MAX,
59 _NETDEV_MACVLAN_MODE_INVALID = -1
62 typedef enum NetDevKind {
68 _NETDEV_KIND_INVALID = -1
71 typedef enum NetDevState {
73 NETDEV_STATE_CREATING,
76 _NETDEV_STATE_INVALID = -1,
84 Condition *match_host;
85 Condition *match_virt;
86 Condition *match_kernel;
87 Condition *match_arch;
99 LIST_HEAD(netdev_enslave_callback, callbacks);
107 struct ether_addr *match_mac;
112 Condition *match_host;
113 Condition *match_virt;
114 Condition *match_kernel;
115 Condition *match_arch;
126 bool dhcp_domainname;
129 LIST_HEAD(Address, static_addresses);
130 LIST_HEAD(Route, static_routes);
133 Hashmap *addresses_by_section;
134 Hashmap *routes_by_section;
136 LIST_FIELDS(Network, networks);
143 unsigned char family;
144 unsigned char prefixlen;
147 struct in_addr broadcast;
154 LIST_FIELDS(Address, static_addresses);
161 unsigned char family;
162 unsigned char dst_prefixlen;
174 LIST_FIELDS(Route, static_routes);
177 typedef enum LinkState {
178 LINK_STATE_ENSLAVING,
179 LINK_STATE_SETTING_ADDRESSES,
180 LINK_STATE_SETTING_ROUTES,
181 LINK_STATE_CONFIGURED,
184 _LINK_STATE_INVALID = -1
192 struct ether_addr mac;
200 unsigned addr_messages;
201 unsigned route_messages;
204 sd_dhcp_client *dhcp_client;
205 sd_dhcp_lease *dhcp_lease;
206 uint16_t original_mtu;
214 struct udev_monitor *udev_monitor;
215 sd_event_source *udev_event_source;
216 sd_event_source *sigterm_event_source;
217 sd_event_source *sigint_event_source;
221 LIST_HEAD(Network, networks);
223 usec_t network_dirs_ts_usec;
226 extern const char* const network_dirs[];
230 int manager_new(Manager **ret);
231 void manager_free(Manager *m);
233 int manager_load_config(Manager *m);
234 bool manager_should_reload(Manager *m);
236 int manager_udev_enumerate_links(Manager *m);
237 int manager_udev_listen(Manager *m);
239 int manager_rtnl_listen(Manager *m);
240 int manager_bus_listen(Manager *m);
242 int manager_update_resolv_conf(Manager *m);
244 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
245 #define _cleanup_manager_free_ _cleanup_(manager_freep)
249 int netdev_load(Manager *manager);
251 void netdev_free(NetDev *netdev);
253 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_free);
254 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
256 int netdev_get(Manager *manager, const char *name, NetDev **ret);
257 int netdev_set_ifindex(NetDev *netdev, int ifindex);
258 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
260 const char *netdev_kind_to_string(NetDevKind d) _const_;
261 NetDevKind netdev_kind_from_string(const char *d) _pure_;
263 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
264 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
266 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);
268 int config_parse_macvlan_mode(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);
271 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
275 int network_load(Manager *manager);
277 void network_free(Network *network);
279 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
280 #define _cleanup_network_free_ _cleanup_(network_freep)
282 int network_get(Manager *manager, struct udev_device *device, Network **ret);
283 int network_apply(Manager *manager, Network *network, Link *link);
285 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
286 const char *section, unsigned section_line, const char *lvalue,
287 int ltype, const char *rvalue, void *data, void *userdata);
289 int config_parse_bond(const char *unit, const char *filename, unsigned line,
290 const char *section, unsigned section_line, const char *lvalue,
291 int ltype, const char *rvalue, void *data, void *userdata);
293 int config_parse_vlan(const char *unit, const char *filename, unsigned line,
294 const char *section, unsigned section_line, const char *lvalue,
295 int ltype, const char *rvalue, void *data, void *userdata);
297 int config_parse_macvlan(const char *unit, const char *filename, unsigned line,
298 const char *section, unsigned section_line, const char *lvalue,
299 int ltype, const char *rvalue, void *data, void *userdata);
302 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
305 int route_new_static(Network *network, unsigned section, Route **ret);
306 int route_new_dynamic(Route **ret);
307 void route_free(Route *route);
308 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
310 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
311 #define _cleanup_route_free_ _cleanup_(route_freep)
313 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
314 const char *section, unsigned section_line, const char *lvalue,
315 int ltype, const char *rvalue, void *data, void *userdata);
317 int config_parse_destination(const char *unit, const char *filename, unsigned line,
318 const char *section, unsigned section_line, const char *lvalue,
319 int ltype, const char *rvalue, void *data, void *userdata);
322 int address_new_static(Network *network, unsigned section, Address **ret);
323 int address_new_dynamic(Address **ret);
324 void address_free(Address *address);
325 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
326 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
328 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
329 #define _cleanup_address_free_ _cleanup_(address_freep)
331 int config_parse_dns(const char *unit, const char *filename, unsigned line,
332 const char *section, unsigned section_line, const char *lvalue,
333 int ltype, const char *rvalue, void *data, void *userdata);
335 int config_parse_address(const char *unit, const char *filename, unsigned line,
336 const char *section, unsigned section_line, const char *lvalue,
337 int ltype, const char *rvalue, void *data, void *userdata);
339 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
340 const char *section, unsigned section_line, const char *lvalue,
341 int ltype, const char *rvalue, void *data, void *userdata);
343 int config_parse_label(const char *unit, const char *filename, unsigned line,
344 const char *section, unsigned section_line, const char *lvalue,
345 int ltype, const char *rvalue, void *data, void *userdata);
349 int link_new(Manager *manager, struct udev_device *device, Link **ret);
350 void link_free(Link *link);
351 int link_get(Manager *m, int ifindex, Link **ret);
352 int link_add(Manager *manager, struct udev_device *device, Link **ret);
353 int link_configure(Link *link);
355 int link_update(Link *link, sd_rtnl_message *message);
357 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
358 #define _cleanup_link_free_ _cleanup_(link_freep)
360 /* Macros which append INTERFACE= to the message */
362 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
363 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
364 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
365 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
366 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
367 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
369 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
371 /* More macros which append INTERFACE= to the message */
373 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
374 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
375 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
376 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
377 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
378 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
380 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
382 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
383 #define ADDRESS_FMT_VAL(address) \
384 (address).s_addr & 0xFF, \
385 ((address).s_addr >> 8) & 0xFF, \
386 ((address).s_addr >> 16) & 0xFF, \
387 (address).s_addr >> 24