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 #define CACHE_INFO_INFINITY_LIFE_TIME 0xFFFFFFFFU
41 typedef struct NetDev NetDev;
42 typedef struct Network Network;
43 typedef struct Link Link;
44 typedef struct Address Address;
45 typedef struct Route Route;
46 typedef struct Manager Manager;
48 typedef struct netdev_enslave_callback netdev_enslave_callback;
50 struct netdev_enslave_callback {
51 sd_rtnl_message_handler_t callback;
54 LIST_FIELDS(netdev_enslave_callback, callbacks);
57 typedef enum MacVlanMode {
58 NETDEV_MACVLAN_MODE_PRIVATE = MACVLAN_MODE_PRIVATE,
59 NETDEV_MACVLAN_MODE_VEPA = MACVLAN_MODE_VEPA,
60 NETDEV_MACVLAN_MODE_BRIDGE = MACVLAN_MODE_BRIDGE,
61 NETDEV_MACVLAN_MODE_PASSTHRU = MACVLAN_MODE_PASSTHRU,
62 _NETDEV_MACVLAN_MODE_MAX,
63 _NETDEV_MACVLAN_MODE_INVALID = -1
66 typedef enum NetDevKind {
72 _NETDEV_KIND_INVALID = -1
75 typedef enum NetDevState {
77 NETDEV_STATE_CREATING,
81 _NETDEV_STATE_INVALID = -1,
91 Condition *match_host;
92 Condition *match_virt;
93 Condition *match_kernel;
94 Condition *match_arch;
101 int32_t macvlan_mode;
106 LIST_HEAD(netdev_enslave_callback, callbacks);
114 struct ether_addr *match_mac;
119 Condition *match_host;
120 Condition *match_virt;
121 Condition *match_kernel;
122 Condition *match_arch;
133 bool dhcp_domainname;
137 LIST_HEAD(Address, static_addresses);
138 LIST_HEAD(Route, static_routes);
140 Hashmap *addresses_by_section;
141 Hashmap *routes_by_section;
145 LIST_FIELDS(Network, networks);
152 unsigned char family;
153 unsigned char prefixlen;
157 struct in_addr broadcast;
158 struct ifa_cacheinfo cinfo;
165 LIST_FIELDS(Address, static_addresses);
172 unsigned char family;
173 unsigned char dst_prefixlen;
187 LIST_FIELDS(Route, static_routes);
190 typedef enum LinkState {
191 LINK_STATE_INITIALIZING,
192 LINK_STATE_ENSLAVING,
193 LINK_STATE_SETTING_ADDRESSES,
194 LINK_STATE_SETTING_ROUTES,
195 LINK_STATE_CONFIGURED,
196 LINK_STATE_UNMANAGED,
199 _LINK_STATE_INVALID = -1
210 struct ether_addr mac;
211 struct udev_device *udev_device;
220 unsigned addr_messages;
221 unsigned route_messages;
224 sd_dhcp_client *dhcp_client;
225 sd_dhcp_lease *dhcp_lease;
227 uint16_t original_mtu;
236 struct udev_monitor *udev_monitor;
237 sd_event_source *udev_event_source;
238 sd_event_source *sigterm_event_source;
239 sd_event_source *sigint_event_source;
245 LIST_HEAD(Network, networks);
247 usec_t network_dirs_ts_usec;
250 extern const char* const network_dirs[];
254 int manager_new(Manager **ret);
255 void manager_free(Manager *m);
257 int manager_load_config(Manager *m);
258 bool manager_should_reload(Manager *m);
260 int manager_rtnl_enumerate_links(Manager *m);
262 int manager_rtnl_listen(Manager *m);
263 int manager_udev_listen(Manager *m);
264 int manager_bus_listen(Manager *m);
266 int manager_update_resolv_conf(Manager *m);
267 int manager_save(Manager *m);
269 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
270 #define _cleanup_manager_free_ _cleanup_(manager_freep)
274 int netdev_load(Manager *manager);
275 void netdev_drop(NetDev *netdev);
277 NetDev *netdev_unref(NetDev *netdev);
278 NetDev *netdev_ref(NetDev *netdev);
280 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref);
281 #define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp)
283 int netdev_get(Manager *manager, const char *name, NetDev **ret);
284 int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
285 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
287 const char *netdev_kind_to_string(NetDevKind d) _const_;
288 NetDevKind netdev_kind_from_string(const char *d) _pure_;
290 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
291 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
293 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);
295 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);
298 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
302 int network_load(Manager *manager);
304 void network_free(Network *network);
306 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
307 #define _cleanup_network_free_ _cleanup_(network_freep)
309 int network_get(Manager *manager, struct udev_device *device,
310 const char *ifname, const struct ether_addr *mac,
312 int network_apply(Manager *manager, Network *network, Link *link);
314 int config_parse_netdev(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);
319 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
322 int route_new_static(Network *network, unsigned section, Route **ret);
323 int route_new_dynamic(Route **ret);
324 void route_free(Route *route);
325 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
326 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
329 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
330 #define _cleanup_route_free_ _cleanup_(route_freep)
332 int config_parse_gateway(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_destination(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);
341 int address_new_static(Network *network, unsigned section, Address **ret);
342 int address_new_dynamic(Address **ret);
343 void address_free(Address *address);
344 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
345 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
346 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
348 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
349 #define _cleanup_address_free_ _cleanup_(address_freep)
351 int config_parse_dns(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_address(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);
359 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
360 const char *section, unsigned section_line, const char *lvalue,
361 int ltype, const char *rvalue, void *data, void *userdata);
363 int config_parse_label(const char *unit, const char *filename, unsigned line,
364 const char *section, unsigned section_line, const char *lvalue,
365 int ltype, const char *rvalue, void *data, void *userdata);
369 Link *link_unref(Link *link);
370 Link *link_ref(Link *link);
371 int link_get(Manager *m, int ifindex, Link **ret);
372 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
374 int link_update(Link *link, sd_rtnl_message *message);
376 int link_initialized(Link *link, struct udev_device *device);
378 int link_save(Link *link);
380 bool link_has_carrier(unsigned flags, uint8_t operstate);
382 const char* link_state_to_string(LinkState s) _const_;
383 LinkState link_state_from_string(const char *s) _pure_;
385 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
386 #define _cleanup_link_unref_ _cleanup_(link_unrefp)
388 /* Macros which append INTERFACE= to the message */
390 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%s: " fmt, link->ifname, ##__VA_ARGS__)
391 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
392 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
393 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
394 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
395 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
397 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
399 /* More macros which append INTERFACE= to the message */
401 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->name, "%s: " fmt, netdev->name, ##__VA_ARGS__)
402 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
403 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
404 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
405 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
406 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
408 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->name, __VA_ARGS__)
410 #define NETDEV(netdev) "INTERFACE=%s", netdev->name
411 #define ADDRESS_FMT_VAL(address) \
412 (address).s_addr & 0xFF, \
413 ((address).s_addr >> 8) & 0xFF, \
414 ((address).s_addr >> 16) & 0xFF, \
415 (address).s_addr >> 24