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 {
77 _NETDEV_KIND_INVALID = -1
80 typedef enum NetDevState {
82 NETDEV_STATE_CREATING,
86 _NETDEV_STATE_INVALID = -1,
96 Condition *match_host;
97 Condition *match_virt;
98 Condition *match_kernel;
99 Condition *match_arch;
108 int32_t macvlan_mode;
113 bool tunnel_pmtudisc;
116 struct in_addr tunnel_local;
117 struct in_addr tunnel_remote;
119 LIST_HEAD(netdev_enslave_callback, callbacks);
127 struct ether_addr *match_mac;
132 Condition *match_host;
133 Condition *match_virt;
134 Condition *match_kernel;
135 Condition *match_arch;
148 bool dhcp_domainname;
152 LIST_HEAD(Address, static_addresses);
153 LIST_HEAD(Route, static_routes);
155 Hashmap *addresses_by_section;
156 Hashmap *routes_by_section;
158 LIST_HEAD(Address, dns);
159 LIST_HEAD(Address, ntp);
161 LIST_FIELDS(Network, networks);
168 unsigned char family;
169 unsigned char prefixlen;
173 struct in_addr broadcast;
174 struct ifa_cacheinfo cinfo;
181 LIST_FIELDS(Address, addresses);
188 unsigned char family;
189 unsigned char dst_prefixlen;
203 LIST_FIELDS(Route, routes);
206 typedef enum LinkState {
207 LINK_STATE_INITIALIZING,
208 LINK_STATE_ENSLAVING,
209 LINK_STATE_SETTING_ADDRESSES,
210 LINK_STATE_SETTING_ROUTES,
211 LINK_STATE_CONFIGURED,
212 LINK_STATE_UNMANAGED,
216 _LINK_STATE_INVALID = -1
219 typedef enum LinkOperationalState {
220 LINK_OPERSTATE_UNKNOWN,
221 LINK_OPERSTATE_DORMANT,
222 LINK_OPERSTATE_CARRIER,
223 LINK_OPERSTATE_DEGRADED,
224 LINK_OPERSTATE_ROUTABLE,
226 _LINK_OPERSTATE_INVALID = -1
227 } LinkOperationalState;
237 struct ether_addr mac;
238 struct udev_device *udev_device;
241 uint8_t kernel_operstate;
246 LinkOperationalState operstate;
248 unsigned addr_messages;
249 unsigned route_messages;
252 LIST_HEAD(Address, addresses);
254 sd_dhcp_client *dhcp_client;
255 sd_dhcp_lease *dhcp_lease;
257 uint16_t original_mtu;
266 struct udev_monitor *udev_monitor;
267 sd_event_source *udev_event_source;
268 sd_event_source *sigterm_event_source;
269 sd_event_source *sigint_event_source;
275 LIST_HEAD(Network, networks);
277 usec_t network_dirs_ts_usec;
278 struct kmod_ctx *kmod_ctx;
281 extern const char* const network_dirs[];
285 int manager_new(Manager **ret);
286 void manager_free(Manager *m);
288 int manager_load_config(Manager *m);
289 bool manager_should_reload(Manager *m);
291 int manager_rtnl_enumerate_links(Manager *m);
293 int manager_rtnl_listen(Manager *m);
294 int manager_udev_listen(Manager *m);
295 int manager_bus_listen(Manager *m);
297 int manager_save(Manager *m);
299 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
300 #define _cleanup_manager_free_ _cleanup_(manager_freep)
304 int netdev_load(Manager *manager);
305 void netdev_drop(NetDev *netdev);
307 NetDev *netdev_unref(NetDev *netdev);
308 NetDev *netdev_ref(NetDev *netdev);
310 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref);
311 #define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp)
313 int netdev_get(Manager *manager, const char *name, NetDev **ret);
314 int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
315 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
316 int netdev_create_tunnel(Link *link, sd_rtnl_message_handler_t callback);
317 int netdev_create_veth(NetDev *netdev, sd_rtnl_message_handler_t callback);
319 const char *netdev_kind_to_string(NetDevKind d) _const_;
320 NetDevKind netdev_kind_from_string(const char *d) _pure_;
322 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
323 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
325 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);
327 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);
330 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
334 int network_load(Manager *manager);
336 void network_free(Network *network);
338 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
339 #define _cleanup_network_free_ _cleanup_(network_freep)
341 int network_get(Manager *manager, struct udev_device *device,
342 const char *ifname, const struct ether_addr *mac,
344 int network_apply(Manager *manager, Network *network, Link *link);
346 int config_parse_netdev(const char *unit, const char *filename, unsigned line,
347 const char *section, unsigned section_line, const char *lvalue,
348 int ltype, const char *rvalue, void *data, void *userdata);
350 int config_parse_tunnel(const char *unit,
351 const char *filename,
354 unsigned section_line,
361 int config_parse_tunnel_address(const char *unit,
362 const char *filename,
365 unsigned section_line,
373 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
376 int route_new_static(Network *network, unsigned section, Route **ret);
377 int route_new_dynamic(Route **ret);
378 void route_free(Route *route);
379 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
380 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
383 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
384 #define _cleanup_route_free_ _cleanup_(route_freep)
386 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
387 const char *section, unsigned section_line, const char *lvalue,
388 int ltype, const char *rvalue, void *data, void *userdata);
390 int config_parse_destination(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);
395 int address_new_static(Network *network, unsigned section, Address **ret);
396 int address_new_dynamic(Address **ret);
397 void address_free(Address *address);
398 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
399 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
400 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
401 bool address_equal(Address *a1, Address *a2);
403 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
404 #define _cleanup_address_free_ _cleanup_(address_freep)
406 int config_parse_dns(const char *unit, const char *filename, unsigned line,
407 const char *section, unsigned section_line, const char *lvalue,
408 int ltype, const char *rvalue, void *data, void *userdata);
410 int config_parse_address(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_broadcast(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_label(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);
424 Link *link_unref(Link *link);
425 Link *link_ref(Link *link);
426 int link_get(Manager *m, int ifindex, Link **ret);
427 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
428 void link_drop(Link *link);
430 int link_update(Link *link, sd_rtnl_message *message);
431 int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata);
433 int link_initialized(Link *link, struct udev_device *device);
435 int link_save(Link *link);
437 bool link_has_carrier(unsigned flags, uint8_t operstate);
439 const char* link_state_to_string(LinkState s) _const_;
440 LinkState link_state_from_string(const char *s) _pure_;
442 const char* link_operstate_to_string(LinkOperationalState s) _const_;
443 LinkOperationalState link_operstate_from_string(const char *s) _pure_;
445 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
446 #define _cleanup_link_unref_ _cleanup_(link_unrefp)
448 /* Macros which append INTERFACE= to the message */
450 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__)
451 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
452 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
453 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
454 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
455 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
457 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
459 /* More macros which append INTERFACE= to the message */
461 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->ifname, "%*s: " fmt, IFNAMSIZ, netdev->ifname, ##__VA_ARGS__)
462 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
463 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
464 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
465 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
466 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
468 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->ifname, __VA_ARGS__)
470 #define NETDEV(netdev) "INTERFACE=%s", netdev->ifname
471 #define ADDRESS_FMT_VAL(address) \
472 (address).s_addr & 0xFF, \
473 ((address).s_addr >> 8) & 0xFF, \
474 ((address).s_addr >> 16) & 0xFF, \
475 (address).s_addr >> 24