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"
30 #include "sd-ipv4ll.h"
33 #include "rtnl-util.h"
37 #include "condition-util.h"
39 typedef struct NetDev NetDev;
40 typedef struct Network Network;
41 typedef struct Link Link;
42 typedef struct Address Address;
43 typedef struct Route Route;
44 typedef struct Manager Manager;
46 typedef struct netdev_enslave_callback netdev_enslave_callback;
48 struct netdev_enslave_callback {
49 sd_rtnl_message_handler_t callback;
52 LIST_FIELDS(netdev_enslave_callback, callbacks);
55 typedef enum MacVlanMode {
56 NETDEV_MACVLAN_MODE_PRIVATE = MACVLAN_MODE_PRIVATE,
57 NETDEV_MACVLAN_MODE_VEPA = MACVLAN_MODE_VEPA,
58 NETDEV_MACVLAN_MODE_BRIDGE = MACVLAN_MODE_BRIDGE,
59 NETDEV_MACVLAN_MODE_PASSTHRU = MACVLAN_MODE_PASSTHRU,
60 _NETDEV_MACVLAN_MODE_MAX,
61 _NETDEV_MACVLAN_MODE_INVALID = -1
64 typedef enum NetDevKind {
70 _NETDEV_KIND_INVALID = -1
73 typedef enum NetDevState {
75 NETDEV_STATE_CREATING,
78 _NETDEV_STATE_INVALID = -1,
86 Condition *match_host;
87 Condition *match_virt;
88 Condition *match_kernel;
89 Condition *match_arch;
101 LIST_HEAD(netdev_enslave_callback, callbacks);
109 struct ether_addr *match_mac;
114 Condition *match_host;
115 Condition *match_virt;
116 Condition *match_kernel;
117 Condition *match_arch;
128 bool dhcp_domainname;
132 LIST_HEAD(Address, static_addresses);
133 LIST_HEAD(Route, static_routes);
135 Hashmap *addresses_by_section;
136 Hashmap *routes_by_section;
140 LIST_FIELDS(Network, networks);
147 unsigned char family;
148 unsigned char prefixlen;
152 struct in_addr broadcast;
159 LIST_FIELDS(Address, static_addresses);
166 unsigned char family;
167 unsigned char dst_prefixlen;
181 LIST_FIELDS(Route, static_routes);
184 typedef enum LinkState {
185 LINK_STATE_ENSLAVING,
186 LINK_STATE_SETTING_ADDRESSES,
187 LINK_STATE_SETTING_ROUTES,
188 LINK_STATE_CONFIGURED,
191 _LINK_STATE_INVALID = -1
200 struct ether_addr mac;
201 struct udev_device *udev_device;
209 unsigned addr_messages;
210 unsigned route_messages;
213 sd_dhcp_client *dhcp_client;
214 sd_dhcp_lease *dhcp_lease;
215 uint16_t original_mtu;
224 struct udev_monitor *udev_monitor;
225 sd_event_source *udev_event_source;
226 sd_event_source *sigterm_event_source;
227 sd_event_source *sigint_event_source;
231 LIST_HEAD(Network, networks);
233 usec_t network_dirs_ts_usec;
236 extern const char* const network_dirs[];
240 int manager_new(Manager **ret);
241 void manager_free(Manager *m);
243 int manager_load_config(Manager *m);
244 bool manager_should_reload(Manager *m);
246 int manager_udev_enumerate_links(Manager *m);
247 int manager_udev_listen(Manager *m);
249 int manager_rtnl_listen(Manager *m);
250 int manager_bus_listen(Manager *m);
252 int manager_update_resolv_conf(Manager *m);
254 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
255 #define _cleanup_manager_free_ _cleanup_(manager_freep)
259 int netdev_load(Manager *manager);
261 void netdev_free(NetDev *netdev);
263 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_free);
264 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
266 int netdev_get(Manager *manager, const char *name, NetDev **ret);
267 int netdev_set_ifindex(NetDev *netdev, int ifindex);
268 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
270 const char *netdev_kind_to_string(NetDevKind d) _const_;
271 NetDevKind netdev_kind_from_string(const char *d) _pure_;
273 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
274 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
276 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);
278 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);
281 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
285 int network_load(Manager *manager);
287 void network_free(Network *network);
289 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
290 #define _cleanup_network_free_ _cleanup_(network_freep)
292 int network_get(Manager *manager, struct udev_device *device, Network **ret);
293 int network_apply(Manager *manager, Network *network, Link *link);
295 int config_parse_bridge(const char *unit, const char *filename, unsigned line,
296 const char *section, unsigned section_line, const char *lvalue,
297 int ltype, const char *rvalue, void *data, void *userdata);
299 int config_parse_bond(const char *unit, const char *filename, unsigned line,
300 const char *section, unsigned section_line, const char *lvalue,
301 int ltype, const char *rvalue, void *data, void *userdata);
303 int config_parse_vlan(const char *unit, const char *filename, unsigned line,
304 const char *section, unsigned section_line, const char *lvalue,
305 int ltype, const char *rvalue, void *data, void *userdata);
307 int config_parse_macvlan(const char *unit, const char *filename, unsigned line,
308 const char *section, unsigned section_line, const char *lvalue,
309 int ltype, const char *rvalue, void *data, void *userdata);
312 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
315 int route_new_static(Network *network, unsigned section, Route **ret);
316 int route_new_dynamic(Route **ret);
317 void route_free(Route *route);
318 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
319 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
322 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
323 #define _cleanup_route_free_ _cleanup_(route_freep)
325 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
326 const char *section, unsigned section_line, const char *lvalue,
327 int ltype, const char *rvalue, void *data, void *userdata);
329 int config_parse_destination(const char *unit, const char *filename, unsigned line,
330 const char *section, unsigned section_line, const char *lvalue,
331 int ltype, const char *rvalue, void *data, void *userdata);
334 int address_new_static(Network *network, unsigned section, Address **ret);
335 int address_new_dynamic(Address **ret);
336 void address_free(Address *address);
337 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
338 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
340 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
341 #define _cleanup_address_free_ _cleanup_(address_freep)
343 int config_parse_dns(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);
347 int config_parse_address(const char *unit, const char *filename, unsigned line,
348 const char *section, unsigned section_line, const char *lvalue,
349 int ltype, const char *rvalue, void *data, void *userdata);
351 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
352 const char *section, unsigned section_line, const char *lvalue,
353 int ltype, const char *rvalue, void *data, void *userdata);
355 int config_parse_label(const char *unit, const char *filename, unsigned line,
356 const char *section, unsigned section_line, const char *lvalue,
357 int ltype, const char *rvalue, void *data, void *userdata);
361 int link_new(Manager *manager, struct udev_device *device, Link **ret);
362 void link_free(Link *link);
363 int link_get(Manager *m, int ifindex, Link **ret);
364 int link_add(Manager *manager, struct udev_device *device, Link **ret);
366 int link_update(Link *link, sd_rtnl_message *message);
368 int link_save(Link *link);
370 const char* link_state_to_string(LinkState s) _const_;
371 LinkState link_state_from_string(const char *s) _pure_;
373 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
374 #define _cleanup_link_free_ _cleanup_(link_freep)
376 /* Macros which append INTERFACE= to the message */
378 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
379 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
380 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
381 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
382 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
383 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
385 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
387 /* More macros which append INTERFACE= to the message */
389 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
390 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
391 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
392 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
393 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
394 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
396 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
398 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
399 #define ADDRESS_FMT_VAL(address) \
400 (address).s_addr & 0xFF, \
401 ((address).s_addr >> 8) & 0xFF, \
402 ((address).s_addr >> 16) & 0xFF, \
403 (address).s_addr >> 24