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;
144 bool dhcp_domainname;
148 LIST_HEAD(Address, static_addresses);
149 LIST_HEAD(Route, static_routes);
151 Hashmap *addresses_by_section;
152 Hashmap *routes_by_section;
154 LIST_HEAD(Address, dns);
155 LIST_HEAD(Address, ntp);
157 LIST_FIELDS(Network, networks);
164 unsigned char family;
165 unsigned char prefixlen;
169 struct in_addr broadcast;
170 struct ifa_cacheinfo cinfo;
177 LIST_FIELDS(Address, addresses);
184 unsigned char family;
185 unsigned char dst_prefixlen;
199 LIST_FIELDS(Route, routes);
202 typedef enum LinkState {
203 LINK_STATE_INITIALIZING,
204 LINK_STATE_ENSLAVING,
205 LINK_STATE_SETTING_ADDRESSES,
206 LINK_STATE_SETTING_ROUTES,
207 LINK_STATE_CONFIGURED,
208 LINK_STATE_UNMANAGED,
212 _LINK_STATE_INVALID = -1
215 typedef enum LinkOperationalState {
216 LINK_OPERSTATE_UNKNOWN,
217 LINK_OPERSTATE_DORMANT,
218 LINK_OPERSTATE_CARRIER,
219 LINK_OPERSTATE_DEGRADED,
220 LINK_OPERSTATE_ROUTABLE,
222 _LINK_OPERSTATE_INVALID = -1
223 } LinkOperationalState;
233 struct ether_addr mac;
234 struct udev_device *udev_device;
237 uint8_t kernel_operstate;
242 LinkOperationalState operstate;
244 unsigned addr_messages;
245 unsigned route_messages;
248 LIST_HEAD(Address, addresses);
250 sd_dhcp_client *dhcp_client;
251 sd_dhcp_lease *dhcp_lease;
253 uint16_t original_mtu;
262 struct udev_monitor *udev_monitor;
263 sd_event_source *udev_event_source;
264 sd_event_source *sigterm_event_source;
265 sd_event_source *sigint_event_source;
271 LIST_HEAD(Network, networks);
273 usec_t network_dirs_ts_usec;
274 struct kmod_ctx *kmod_ctx;
277 extern const char* const network_dirs[];
281 int manager_new(Manager **ret);
282 void manager_free(Manager *m);
284 int manager_load_config(Manager *m);
285 bool manager_should_reload(Manager *m);
287 int manager_rtnl_enumerate_links(Manager *m);
289 int manager_rtnl_listen(Manager *m);
290 int manager_udev_listen(Manager *m);
291 int manager_bus_listen(Manager *m);
293 int manager_save(Manager *m);
295 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
296 #define _cleanup_manager_free_ _cleanup_(manager_freep)
300 int netdev_load(Manager *manager);
301 void netdev_drop(NetDev *netdev);
303 NetDev *netdev_unref(NetDev *netdev);
304 NetDev *netdev_ref(NetDev *netdev);
306 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref);
307 #define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp)
309 int netdev_get(Manager *manager, const char *name, NetDev **ret);
310 int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
311 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
312 int netdev_create_tunnel(Link *link, sd_rtnl_message_handler_t callback);
314 const char *netdev_kind_to_string(NetDevKind d) _const_;
315 NetDevKind netdev_kind_from_string(const char *d) _pure_;
317 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
318 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
320 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);
322 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);
325 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
329 int network_load(Manager *manager);
331 void network_free(Network *network);
333 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
334 #define _cleanup_network_free_ _cleanup_(network_freep)
336 int network_get(Manager *manager, struct udev_device *device,
337 const char *ifname, const struct ether_addr *mac,
339 int network_apply(Manager *manager, Network *network, Link *link);
341 int config_parse_netdev(const char *unit, const char *filename, unsigned line,
342 const char *section, unsigned section_line, const char *lvalue,
343 int ltype, const char *rvalue, void *data, void *userdata);
345 int config_parse_tunnel(const char *unit,
346 const char *filename,
349 unsigned section_line,
356 int config_parse_tunnel_address(const char *unit,
357 const char *filename,
360 unsigned section_line,
368 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
371 int route_new_static(Network *network, unsigned section, Route **ret);
372 int route_new_dynamic(Route **ret);
373 void route_free(Route *route);
374 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
375 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
378 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
379 #define _cleanup_route_free_ _cleanup_(route_freep)
381 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
382 const char *section, unsigned section_line, const char *lvalue,
383 int ltype, const char *rvalue, void *data, void *userdata);
385 int config_parse_destination(const char *unit, const char *filename, unsigned line,
386 const char *section, unsigned section_line, const char *lvalue,
387 int ltype, const char *rvalue, void *data, void *userdata);
390 int address_new_static(Network *network, unsigned section, Address **ret);
391 int address_new_dynamic(Address **ret);
392 void address_free(Address *address);
393 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
394 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
395 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
396 bool address_equal(Address *a1, Address *a2);
398 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
399 #define _cleanup_address_free_ _cleanup_(address_freep)
401 int config_parse_dns(const char *unit, const char *filename, unsigned line,
402 const char *section, unsigned section_line, const char *lvalue,
403 int ltype, const char *rvalue, void *data, void *userdata);
405 int config_parse_address(const char *unit, const char *filename, unsigned line,
406 const char *section, unsigned section_line, const char *lvalue,
407 int ltype, const char *rvalue, void *data, void *userdata);
409 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
410 const char *section, unsigned section_line, const char *lvalue,
411 int ltype, const char *rvalue, void *data, void *userdata);
413 int config_parse_label(const char *unit, const char *filename, unsigned line,
414 const char *section, unsigned section_line, const char *lvalue,
415 int ltype, const char *rvalue, void *data, void *userdata);
419 Link *link_unref(Link *link);
420 Link *link_ref(Link *link);
421 int link_get(Manager *m, int ifindex, Link **ret);
422 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
423 void link_drop(Link *link);
425 int link_update(Link *link, sd_rtnl_message *message);
426 int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata);
428 int link_initialized(Link *link, struct udev_device *device);
430 int link_save(Link *link);
432 bool link_has_carrier(unsigned flags, uint8_t operstate);
434 const char* link_state_to_string(LinkState s) _const_;
435 LinkState link_state_from_string(const char *s) _pure_;
437 const char* link_operstate_to_string(LinkOperationalState s) _const_;
438 LinkOperationalState link_operstate_from_string(const char *s) _pure_;
440 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
441 #define _cleanup_link_unref_ _cleanup_(link_unrefp)
443 /* Macros which append INTERFACE= to the message */
445 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__)
446 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
447 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
448 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
449 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
450 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
452 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
454 /* More macros which append INTERFACE= to the message */
456 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->ifname, "%*s: " fmt, IFNAMSIZ, netdev->ifname, ##__VA_ARGS__)
457 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
458 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
459 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
460 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
461 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
463 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->ifname, __VA_ARGS__)
465 #define NETDEV(netdev) "INTERFACE=%s", netdev->ifname
466 #define ADDRESS_FMT_VAL(address) \
467 (address).s_addr & 0xFF, \
468 ((address).s_addr >> 8) & 0xFF, \
469 ((address).s_addr >> 16) & 0xFF, \
470 (address).s_addr >> 24