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
193 struct ether_addr mac;
201 unsigned addr_messages;
202 unsigned route_messages;
205 sd_dhcp_client *dhcp_client;
206 sd_dhcp_lease *dhcp_lease;
207 uint16_t original_mtu;
215 struct udev_monitor *udev_monitor;
216 sd_event_source *udev_event_source;
217 sd_event_source *sigterm_event_source;
218 sd_event_source *sigint_event_source;
222 LIST_HEAD(Network, networks);
224 usec_t network_dirs_ts_usec;
227 extern const char* const network_dirs[];
231 int manager_new(Manager **ret);
232 void manager_free(Manager *m);
234 int manager_load_config(Manager *m);
235 bool manager_should_reload(Manager *m);
237 int manager_udev_enumerate_links(Manager *m);
238 int manager_udev_listen(Manager *m);
240 int manager_rtnl_listen(Manager *m);
241 int manager_bus_listen(Manager *m);
243 int manager_update_resolv_conf(Manager *m);
245 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
246 #define _cleanup_manager_free_ _cleanup_(manager_freep)
250 int netdev_load(Manager *manager);
252 void netdev_free(NetDev *netdev);
254 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_free);
255 #define _cleanup_netdev_free_ _cleanup_(netdev_freep)
257 int netdev_get(Manager *manager, const char *name, NetDev **ret);
258 int netdev_set_ifindex(NetDev *netdev, int ifindex);
259 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
261 const char *netdev_kind_to_string(NetDevKind d) _const_;
262 NetDevKind netdev_kind_from_string(const char *d) _pure_;
264 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
265 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
267 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);
269 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);
272 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
276 int network_load(Manager *manager);
278 void network_free(Network *network);
280 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
281 #define _cleanup_network_free_ _cleanup_(network_freep)
283 int network_get(Manager *manager, struct udev_device *device, Network **ret);
284 int network_apply(Manager *manager, Network *network, Link *link);
286 int config_parse_bridge(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);
290 int config_parse_bond(const char *unit, const char *filename, unsigned line,
291 const char *section, unsigned section_line, const char *lvalue,
292 int ltype, const char *rvalue, void *data, void *userdata);
294 int config_parse_vlan(const char *unit, const char *filename, unsigned line,
295 const char *section, unsigned section_line, const char *lvalue,
296 int ltype, const char *rvalue, void *data, void *userdata);
298 int config_parse_macvlan(const char *unit, const char *filename, unsigned line,
299 const char *section, unsigned section_line, const char *lvalue,
300 int ltype, const char *rvalue, void *data, void *userdata);
303 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
306 int route_new_static(Network *network, unsigned section, Route **ret);
307 int route_new_dynamic(Route **ret);
308 void route_free(Route *route);
309 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
311 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
312 #define _cleanup_route_free_ _cleanup_(route_freep)
314 int config_parse_gateway(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_destination(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);
323 int address_new_static(Network *network, unsigned section, Address **ret);
324 int address_new_dynamic(Address **ret);
325 void address_free(Address *address);
326 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
327 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
329 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
330 #define _cleanup_address_free_ _cleanup_(address_freep)
332 int config_parse_dns(const char *unit, const char *filename, unsigned line,
333 const char *section, unsigned section_line, const char *lvalue,
334 int ltype, const char *rvalue, void *data, void *userdata);
336 int config_parse_address(const char *unit, const char *filename, unsigned line,
337 const char *section, unsigned section_line, const char *lvalue,
338 int ltype, const char *rvalue, void *data, void *userdata);
340 int config_parse_broadcast(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_label(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);
350 int link_new(Manager *manager, struct udev_device *device, Link **ret);
351 void link_free(Link *link);
352 int link_get(Manager *m, int ifindex, Link **ret);
353 int link_add(Manager *manager, struct udev_device *device, Link **ret);
354 int link_configure(Link *link);
356 int link_update(Link *link, sd_rtnl_message *message);
358 int link_save(Link *link);
360 const char* link_state_to_string(LinkState s) _const_;
361 LinkState link_state_from_string(const char *s) _pure_;
363 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
364 #define _cleanup_link_free_ _cleanup_(link_freep)
366 /* Macros which append INTERFACE= to the message */
368 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
369 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
370 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
371 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
372 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
373 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
375 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
377 /* More macros which append INTERFACE= to the message */
379 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
380 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
381 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
382 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
383 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
384 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
386 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
388 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
389 #define ADDRESS_FMT_VAL(address) \
390 (address).s_addr & 0xFF, \
391 ((address).s_addr >> 8) & 0xFF, \
392 ((address).s_addr >> 16) & 0xFF, \
393 (address).s_addr >> 24