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-dhcp-server.h"
31 #include "sd-ipv4ll.h"
34 #include "rtnl-util.h"
38 #include "condition-util.h"
40 #define CACHE_INFO_INFINITY_LIFE_TIME 0xFFFFFFFFU
42 typedef struct NetDev NetDev;
43 typedef struct Network Network;
44 typedef struct Link Link;
45 typedef struct Address Address;
46 typedef struct Route Route;
47 typedef struct Manager Manager;
49 typedef struct netdev_enslave_callback netdev_enslave_callback;
51 struct netdev_enslave_callback {
52 sd_rtnl_message_handler_t callback;
55 LIST_FIELDS(netdev_enslave_callback, callbacks);
58 typedef enum MacVlanMode {
59 NETDEV_MACVLAN_MODE_PRIVATE = MACVLAN_MODE_PRIVATE,
60 NETDEV_MACVLAN_MODE_VEPA = MACVLAN_MODE_VEPA,
61 NETDEV_MACVLAN_MODE_BRIDGE = MACVLAN_MODE_BRIDGE,
62 NETDEV_MACVLAN_MODE_PASSTHRU = MACVLAN_MODE_PASSTHRU,
63 _NETDEV_MACVLAN_MODE_MAX,
64 _NETDEV_MACVLAN_MODE_INVALID = -1
67 typedef enum NetDevKind {
78 _NETDEV_KIND_INVALID = -1
81 typedef enum NetDevState {
83 NETDEV_STATE_CREATING,
87 _NETDEV_STATE_INVALID = -1,
97 Condition *match_host;
98 Condition *match_virt;
99 Condition *match_kernel;
100 Condition *match_arch;
109 int32_t macvlan_mode;
114 bool tunnel_pmtudisc;
117 struct in_addr tunnel_local;
118 struct in_addr tunnel_remote;
120 LIST_HEAD(netdev_enslave_callback, callbacks);
128 struct ether_addr *match_mac;
133 Condition *match_host;
134 Condition *match_virt;
135 Condition *match_kernel;
136 Condition *match_arch;
149 bool dhcp_domainname;
155 LIST_HEAD(Address, static_addresses);
156 LIST_HEAD(Route, static_routes);
158 Hashmap *addresses_by_section;
159 Hashmap *routes_by_section;
161 LIST_HEAD(Address, dns);
162 LIST_HEAD(Address, ntp);
164 LIST_FIELDS(Network, networks);
171 unsigned char family;
172 unsigned char prefixlen;
176 struct in_addr broadcast;
177 struct ifa_cacheinfo cinfo;
184 LIST_FIELDS(Address, addresses);
191 unsigned char family;
192 unsigned char dst_prefixlen;
206 LIST_FIELDS(Route, routes);
209 typedef enum LinkState {
210 LINK_STATE_INITIALIZING,
211 LINK_STATE_ENSLAVING,
212 LINK_STATE_SETTING_ADDRESSES,
213 LINK_STATE_SETTING_ROUTES,
214 LINK_STATE_CONFIGURED,
215 LINK_STATE_UNMANAGED,
219 _LINK_STATE_INVALID = -1
222 typedef enum LinkOperationalState {
223 LINK_OPERSTATE_UNKNOWN,
224 LINK_OPERSTATE_DORMANT,
225 LINK_OPERSTATE_CARRIER,
226 LINK_OPERSTATE_DEGRADED,
227 LINK_OPERSTATE_ROUTABLE,
229 _LINK_OPERSTATE_INVALID = -1
230 } LinkOperationalState;
240 struct ether_addr mac;
241 struct udev_device *udev_device;
244 uint8_t kernel_operstate;
249 LinkOperationalState operstate;
251 unsigned addr_messages;
252 unsigned route_messages;
255 LIST_HEAD(Address, addresses);
257 sd_dhcp_client *dhcp_client;
258 sd_dhcp_lease *dhcp_lease;
260 uint16_t original_mtu;
263 sd_dhcp_server *dhcp_server;
271 struct udev_monitor *udev_monitor;
272 sd_event_source *udev_event_source;
273 sd_event_source *sigterm_event_source;
274 sd_event_source *sigint_event_source;
280 LIST_HEAD(Network, networks);
282 usec_t network_dirs_ts_usec;
285 extern const char* const network_dirs[];
289 int manager_new(Manager **ret);
290 void manager_free(Manager *m);
292 int manager_load_config(Manager *m);
293 bool manager_should_reload(Manager *m);
295 int manager_rtnl_enumerate_links(Manager *m);
297 int manager_rtnl_listen(Manager *m);
298 int manager_udev_listen(Manager *m);
299 int manager_bus_listen(Manager *m);
301 int manager_save(Manager *m);
303 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
304 #define _cleanup_manager_free_ _cleanup_(manager_freep)
308 int netdev_load(Manager *manager);
309 void netdev_drop(NetDev *netdev);
311 NetDev *netdev_unref(NetDev *netdev);
312 NetDev *netdev_ref(NetDev *netdev);
314 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref);
315 #define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp)
317 int netdev_get(Manager *manager, const char *name, NetDev **ret);
318 int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
319 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
320 int netdev_create_tunnel(Link *link, sd_rtnl_message_handler_t callback);
321 int netdev_create_veth(NetDev *netdev, sd_rtnl_message_handler_t callback);
323 const char *netdev_kind_to_string(NetDevKind d) _const_;
324 NetDevKind netdev_kind_from_string(const char *d) _pure_;
326 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
327 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
329 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);
331 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);
334 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
338 int network_load(Manager *manager);
340 void network_free(Network *network);
342 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
343 #define _cleanup_network_free_ _cleanup_(network_freep)
345 int network_get(Manager *manager, struct udev_device *device,
346 const char *ifname, const struct ether_addr *mac,
348 int network_apply(Manager *manager, Network *network, Link *link);
350 int config_parse_netdev(const char *unit, const char *filename, unsigned line,
351 const char *section, unsigned section_line, const char *lvalue,
352 int ltype, const char *rvalue, void *data, void *userdata);
354 int config_parse_tunnel(const char *unit,
355 const char *filename,
358 unsigned section_line,
365 int config_parse_tunnel_address(const char *unit,
366 const char *filename,
369 unsigned section_line,
377 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
380 int route_new_static(Network *network, unsigned section, Route **ret);
381 int route_new_dynamic(Route **ret);
382 void route_free(Route *route);
383 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
384 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
387 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
388 #define _cleanup_route_free_ _cleanup_(route_freep)
390 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
391 const char *section, unsigned section_line, const char *lvalue,
392 int ltype, const char *rvalue, void *data, void *userdata);
394 int config_parse_destination(const char *unit, const char *filename, unsigned line,
395 const char *section, unsigned section_line, const char *lvalue,
396 int ltype, const char *rvalue, void *data, void *userdata);
399 int address_new_static(Network *network, unsigned section, Address **ret);
400 int address_new_dynamic(Address **ret);
401 void address_free(Address *address);
402 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
403 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
404 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
405 bool address_equal(Address *a1, Address *a2);
407 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
408 #define _cleanup_address_free_ _cleanup_(address_freep)
410 int config_parse_dns(const char *unit, const char *filename, unsigned line,
411 const char *section, unsigned section_line, const char *lvalue,
412 int ltype, const char *rvalue, void *data, void *userdata);
414 int config_parse_address(const char *unit, const char *filename, unsigned line,
415 const char *section, unsigned section_line, const char *lvalue,
416 int ltype, const char *rvalue, void *data, void *userdata);
418 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
419 const char *section, unsigned section_line, const char *lvalue,
420 int ltype, const char *rvalue, void *data, void *userdata);
422 int config_parse_label(const char *unit, const char *filename, unsigned line,
423 const char *section, unsigned section_line, const char *lvalue,
424 int ltype, const char *rvalue, void *data, void *userdata);
428 Link *link_unref(Link *link);
429 Link *link_ref(Link *link);
430 int link_get(Manager *m, int ifindex, Link **ret);
431 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
432 void link_drop(Link *link);
434 int link_update(Link *link, sd_rtnl_message *message);
435 int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata);
437 int link_initialized(Link *link, struct udev_device *device);
439 int link_save(Link *link);
441 bool link_has_carrier(unsigned flags, uint8_t operstate);
443 const char* link_state_to_string(LinkState s) _const_;
444 LinkState link_state_from_string(const char *s) _pure_;
446 const char* link_operstate_to_string(LinkOperationalState s) _const_;
447 LinkOperationalState link_operstate_from_string(const char *s) _pure_;
449 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
450 #define _cleanup_link_unref_ _cleanup_(link_unrefp)
452 /* Macros which append INTERFACE= to the message */
454 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%-*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__)
455 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
456 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
457 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
458 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
459 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
461 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
463 /* More macros which append INTERFACE= to the message */
465 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->ifname, "%-*s: " fmt, IFNAMSIZ, netdev->ifname, ##__VA_ARGS__)
466 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
467 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
468 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
469 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
470 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
472 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->ifname, __VA_ARGS__)
474 #define NETDEV(netdev) "INTERFACE=%s", netdev->ifname
475 #define ADDRESS_FMT_VAL(address) \
476 (address).s_addr & 0xFF, \
477 ((address).s_addr >> 8) & 0xFF, \
478 ((address).s_addr >> 16) & 0xFF, \
479 (address).s_addr >> 24