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 {
75 _NETDEV_KIND_INVALID = -1
78 typedef enum NetDevState {
80 NETDEV_STATE_CREATING,
84 _NETDEV_STATE_INVALID = -1,
94 Condition *match_host;
95 Condition *match_virt;
96 Condition *match_kernel;
97 Condition *match_arch;
105 int32_t macvlan_mode;
112 struct in_addr tunnel_local;
113 struct in_addr tunnel_remote;
115 LIST_HEAD(netdev_enslave_callback, callbacks);
123 struct ether_addr *match_mac;
128 Condition *match_host;
129 Condition *match_virt;
130 Condition *match_kernel;
131 Condition *match_arch;
143 bool dhcp_domainname;
147 LIST_HEAD(Address, static_addresses);
148 LIST_HEAD(Route, static_routes);
150 Hashmap *addresses_by_section;
151 Hashmap *routes_by_section;
153 LIST_HEAD(Address, dns);
155 LIST_FIELDS(Network, networks);
162 unsigned char family;
163 unsigned char prefixlen;
167 struct in_addr broadcast;
168 struct ifa_cacheinfo cinfo;
175 LIST_FIELDS(Address, addresses);
182 unsigned char family;
183 unsigned char dst_prefixlen;
197 LIST_FIELDS(Route, routes);
200 typedef enum LinkState {
201 LINK_STATE_INITIALIZING,
202 LINK_STATE_ENSLAVING,
203 LINK_STATE_SETTING_ADDRESSES,
204 LINK_STATE_SETTING_ROUTES,
205 LINK_STATE_CONFIGURED,
206 LINK_STATE_UNMANAGED,
210 _LINK_STATE_INVALID = -1
221 struct ether_addr mac;
222 struct udev_device *udev_device;
231 unsigned addr_messages;
232 unsigned route_messages;
235 LIST_HEAD(Address, addresses);
237 sd_dhcp_client *dhcp_client;
238 sd_dhcp_lease *dhcp_lease;
240 uint16_t original_mtu;
249 struct udev_monitor *udev_monitor;
250 sd_event_source *udev_event_source;
251 sd_event_source *sigterm_event_source;
252 sd_event_source *sigint_event_source;
258 LIST_HEAD(Network, networks);
259 LIST_HEAD(Address, fallback_dns);
261 usec_t network_dirs_ts_usec;
262 struct kmod_ctx *kmod_ctx;
265 extern const char* const network_dirs[];
269 int manager_new(Manager **ret);
270 void manager_free(Manager *m);
272 int manager_load_config(Manager *m);
273 bool manager_should_reload(Manager *m);
275 int manager_rtnl_enumerate_links(Manager *m);
277 int manager_rtnl_listen(Manager *m);
278 int manager_udev_listen(Manager *m);
279 int manager_bus_listen(Manager *m);
281 int manager_update_resolv_conf(Manager *m);
282 int manager_save(Manager *m);
284 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
285 #define _cleanup_manager_free_ _cleanup_(manager_freep)
287 const struct ConfigPerfItem* networkd_gperf_lookup(const char *key, unsigned length);
289 int config_parse_dnsv(const char *unit, const char *filename, unsigned line,
290 const char *section, unsigned section_line, const char *lvalue,
291 int ltype, const char *rvalue, void *data, void *userdata);
295 int netdev_load(Manager *manager);
296 void netdev_drop(NetDev *netdev);
298 NetDev *netdev_unref(NetDev *netdev);
299 NetDev *netdev_ref(NetDev *netdev);
301 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref);
302 #define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp)
304 int netdev_get(Manager *manager, const char *name, NetDev **ret);
305 int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
306 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
307 int netdev_create_tunnel(Link *link, sd_rtnl_message_handler_t callback);
309 const char *netdev_kind_to_string(NetDevKind d) _const_;
310 NetDevKind netdev_kind_from_string(const char *d) _pure_;
312 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
313 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
315 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);
317 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);
320 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
324 int network_load(Manager *manager);
326 void network_free(Network *network);
328 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
329 #define _cleanup_network_free_ _cleanup_(network_freep)
331 int network_get(Manager *manager, struct udev_device *device,
332 const char *ifname, const struct ether_addr *mac,
334 int network_apply(Manager *manager, Network *network, Link *link);
336 int config_parse_netdev(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_tunnel(const char *unit,
341 const char *filename,
344 unsigned section_line,
351 int config_parse_tunnel_address(const char *unit,
352 const char *filename,
355 unsigned section_line,
363 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
366 int route_new_static(Network *network, unsigned section, Route **ret);
367 int route_new_dynamic(Route **ret);
368 void route_free(Route *route);
369 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
370 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
373 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
374 #define _cleanup_route_free_ _cleanup_(route_freep)
376 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
377 const char *section, unsigned section_line, const char *lvalue,
378 int ltype, const char *rvalue, void *data, void *userdata);
380 int config_parse_destination(const char *unit, const char *filename, unsigned line,
381 const char *section, unsigned section_line, const char *lvalue,
382 int ltype, const char *rvalue, void *data, void *userdata);
385 int address_new_static(Network *network, unsigned section, Address **ret);
386 int address_new_dynamic(Address **ret);
387 void address_free(Address *address);
388 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
389 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
390 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
391 bool address_equal(Address *a1, Address *a2);
393 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
394 #define _cleanup_address_free_ _cleanup_(address_freep)
396 int config_parse_dns(const char *unit, const char *filename, unsigned line,
397 const char *section, unsigned section_line, const char *lvalue,
398 int ltype, const char *rvalue, void *data, void *userdata);
400 int config_parse_address(const char *unit, const char *filename, unsigned line,
401 const char *section, unsigned section_line, const char *lvalue,
402 int ltype, const char *rvalue, void *data, void *userdata);
404 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
405 const char *section, unsigned section_line, const char *lvalue,
406 int ltype, const char *rvalue, void *data, void *userdata);
408 int config_parse_label(const char *unit, const char *filename, unsigned line,
409 const char *section, unsigned section_line, const char *lvalue,
410 int ltype, const char *rvalue, void *data, void *userdata);
414 Link *link_unref(Link *link);
415 Link *link_ref(Link *link);
416 int link_get(Manager *m, int ifindex, Link **ret);
417 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
418 void link_drop(Link *link);
420 int link_update(Link *link, sd_rtnl_message *message);
421 int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata);
423 int link_initialized(Link *link, struct udev_device *device);
425 int link_save(Link *link);
427 bool link_has_carrier(unsigned flags, uint8_t operstate);
429 const char* link_state_to_string(LinkState s) _const_;
430 LinkState link_state_from_string(const char *s) _pure_;
432 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
433 #define _cleanup_link_unref_ _cleanup_(link_unrefp)
435 /* Macros which append INTERFACE= to the message */
437 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__)
438 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
439 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
440 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
441 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
442 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
444 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
446 /* More macros which append INTERFACE= to the message */
448 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->ifname, "%*s: " fmt, IFNAMSIZ, netdev->ifname, ##__VA_ARGS__)
449 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
450 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
451 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
452 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
453 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
455 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->ifname, __VA_ARGS__)
457 #define NETDEV(netdev) "INTERFACE=%s", netdev->ifname
458 #define ADDRESS_FMT_VAL(address) \
459 (address).s_addr & 0xFF, \
460 ((address).s_addr >> 8) & 0xFF, \
461 ((address).s_addr >> 16) & 0xFF, \
462 (address).s_addr >> 24