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"
36 #include "condition-util.h"
38 typedef struct NetDev NetDev;
39 typedef struct Network Network;
40 typedef struct Link Link;
41 typedef struct Address Address;
42 typedef struct Route Route;
43 typedef struct Manager Manager;
45 typedef struct netdev_enslave_callback netdev_enslave_callback;
47 struct netdev_enslave_callback {
48 sd_rtnl_message_handler_t callback;
51 LIST_FIELDS(netdev_enslave_callback, callbacks);
54 typedef enum MacVlanMode {
55 NETDEV_MACVLAN_MODE_PRIVATE = MACVLAN_MODE_PRIVATE,
56 NETDEV_MACVLAN_MODE_VEPA = MACVLAN_MODE_VEPA,
57 NETDEV_MACVLAN_MODE_BRIDGE = MACVLAN_MODE_BRIDGE,
58 NETDEV_MACVLAN_MODE_PASSTHRU = MACVLAN_MODE_PASSTHRU,
59 _NETDEV_MACVLAN_MODE_MAX,
60 _NETDEV_MACVLAN_MODE_INVALID = -1
63 typedef enum NetDevKind {
69 _NETDEV_KIND_INVALID = -1
72 typedef enum NetDevState {
74 NETDEV_STATE_CREATING,
77 _NETDEV_STATE_INVALID = -1,
85 Condition *match_host;
86 Condition *match_virt;
87 Condition *match_kernel;
88 Condition *match_arch;
100 LIST_HEAD(netdev_enslave_callback, callbacks);
108 struct ether_addr *match_mac;
113 Condition *match_host;
114 Condition *match_virt;
115 Condition *match_kernel;
116 Condition *match_arch;
127 bool dhcp_domainname;
131 LIST_HEAD(Address, static_addresses);
132 LIST_HEAD(Route, static_routes);
135 Hashmap *addresses_by_section;
136 Hashmap *routes_by_section;
138 LIST_FIELDS(Network, networks);
145 unsigned char family;
146 unsigned char prefixlen;
150 struct in_addr broadcast;
157 LIST_FIELDS(Address, static_addresses);
164 unsigned char family;
165 unsigned char dst_prefixlen;
179 LIST_FIELDS(Route, static_routes);
182 typedef enum LinkState {
183 LINK_STATE_ENSLAVING,
184 LINK_STATE_SETTING_ADDRESSES,
185 LINK_STATE_SETTING_ROUTES,
186 LINK_STATE_CONFIGURED,
189 _LINK_STATE_INVALID = -1
198 struct ether_addr mac;
206 unsigned addr_messages;
207 unsigned route_messages;
210 sd_dhcp_client *dhcp_client;
211 sd_dhcp_lease *dhcp_lease;
212 uint16_t original_mtu;
221 struct udev_monitor *udev_monitor;
222 sd_event_source *udev_event_source;
223 sd_event_source *sigterm_event_source;
224 sd_event_source *sigint_event_source;
228 LIST_HEAD(Network, networks);
230 usec_t network_dirs_ts_usec;
233 extern const char* const network_dirs[];
237 int manager_new(Manager **ret);
238 void manager_free(Manager *m);
240 int manager_load_config(Manager *m);
241 bool manager_should_reload(Manager *m);
243 int manager_udev_enumerate_links(Manager *m);
244 int manager_udev_listen(Manager *m);
246 int manager_rtnl_listen(Manager *m);
247 int manager_bus_listen(Manager *m);
249 int manager_update_resolv_conf(Manager *m);
251 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
252 #define _cleanup_manager_free_ _cleanup_(manager_freep)
256 int netdev_load(Manager *manager);
258 void netdev_free(NetDev *netdev);
260 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_free);
261 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
263 int netdev_get(Manager *manager, const char *name, NetDev **ret);
264 int netdev_set_ifindex(NetDev *netdev, int ifindex);
265 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
267 const char *netdev_kind_to_string(NetDevKind d) _const_;
268 NetDevKind netdev_kind_from_string(const char *d) _pure_;
270 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
271 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
273 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);
275 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);
278 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
282 int network_load(Manager *manager);
284 void network_free(Network *network);
286 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
287 #define _cleanup_network_free_ _cleanup_(network_freep)
289 int network_get(Manager *manager, struct udev_device *device, Network **ret);
290 int network_apply(Manager *manager, Network *network, Link *link);
292 int config_parse_bridge(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_bond(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_vlan(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_macvlan(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);
309 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
312 int route_new_static(Network *network, unsigned section, Route **ret);
313 int route_new_dynamic(Route **ret);
314 void route_free(Route *route);
315 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
316 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
319 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
320 #define _cleanup_route_free_ _cleanup_(route_freep)
322 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
323 const char *section, unsigned section_line, const char *lvalue,
324 int ltype, const char *rvalue, void *data, void *userdata);
326 int config_parse_destination(const char *unit, const char *filename, unsigned line,
327 const char *section, unsigned section_line, const char *lvalue,
328 int ltype, const char *rvalue, void *data, void *userdata);
331 int address_new_static(Network *network, unsigned section, Address **ret);
332 int address_new_dynamic(Address **ret);
333 void address_free(Address *address);
334 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
335 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
337 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
338 #define _cleanup_address_free_ _cleanup_(address_freep)
340 int config_parse_dns(const char *unit, const char *filename, unsigned line,
341 const char *section, unsigned section_line, const char *lvalue,
342 int ltype, const char *rvalue, void *data, void *userdata);
344 int config_parse_address(const char *unit, const char *filename, unsigned line,
345 const char *section, unsigned section_line, const char *lvalue,
346 int ltype, const char *rvalue, void *data, void *userdata);
348 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
349 const char *section, unsigned section_line, const char *lvalue,
350 int ltype, const char *rvalue, void *data, void *userdata);
352 int config_parse_label(const char *unit, const char *filename, unsigned line,
353 const char *section, unsigned section_line, const char *lvalue,
354 int ltype, const char *rvalue, void *data, void *userdata);
358 int link_new(Manager *manager, struct udev_device *device, Link **ret);
359 void link_free(Link *link);
360 int link_get(Manager *m, int ifindex, Link **ret);
361 int link_add(Manager *manager, struct udev_device *device, Link **ret);
363 int link_update(Link *link, sd_rtnl_message *message);
365 int link_save(Link *link);
367 const char* link_state_to_string(LinkState s) _const_;
368 LinkState link_state_from_string(const char *s) _pure_;
370 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
371 #define _cleanup_link_free_ _cleanup_(link_freep)
373 /* Macros which append INTERFACE= to the message */
375 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
376 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
377 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
378 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
379 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
380 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
382 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
384 /* More macros which append INTERFACE= to the message */
386 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
387 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
388 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
389 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
390 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
391 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
393 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
395 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
396 #define ADDRESS_FMT_VAL(address) \
397 (address).s_addr & 0xFF, \
398 ((address).s_addr >> 8) & 0xFF, \
399 ((address).s_addr >> 16) & 0xFF, \
400 (address).s_addr >> 24