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
223 struct ether_addr mac;
224 struct udev_device *udev_device;
233 unsigned addr_messages;
234 unsigned route_messages;
237 LIST_HEAD(Address, addresses);
239 sd_dhcp_client *dhcp_client;
240 sd_dhcp_lease *dhcp_lease;
242 uint16_t original_mtu;
251 struct udev_monitor *udev_monitor;
252 sd_event_source *udev_event_source;
253 sd_event_source *sigterm_event_source;
254 sd_event_source *sigint_event_source;
260 LIST_HEAD(Network, networks);
262 usec_t network_dirs_ts_usec;
263 struct kmod_ctx *kmod_ctx;
266 extern const char* const network_dirs[];
270 int manager_new(Manager **ret);
271 void manager_free(Manager *m);
273 int manager_load_config(Manager *m);
274 bool manager_should_reload(Manager *m);
276 int manager_rtnl_enumerate_links(Manager *m);
278 int manager_rtnl_listen(Manager *m);
279 int manager_udev_listen(Manager *m);
280 int manager_bus_listen(Manager *m);
282 int manager_save(Manager *m);
284 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
285 #define _cleanup_manager_free_ _cleanup_(manager_freep)
289 int netdev_load(Manager *manager);
290 void netdev_drop(NetDev *netdev);
292 NetDev *netdev_unref(NetDev *netdev);
293 NetDev *netdev_ref(NetDev *netdev);
295 DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref);
296 #define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp)
298 int netdev_get(Manager *manager, const char *name, NetDev **ret);
299 int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink);
300 int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb);
301 int netdev_create_tunnel(Link *link, sd_rtnl_message_handler_t callback);
303 const char *netdev_kind_to_string(NetDevKind d) _const_;
304 NetDevKind netdev_kind_from_string(const char *d) _pure_;
306 const char *macvlan_mode_to_string(MacVlanMode d) _const_;
307 MacVlanMode macvlan_mode_from_string(const char *d) _pure_;
309 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);
311 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);
314 const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length);
318 int network_load(Manager *manager);
320 void network_free(Network *network);
322 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
323 #define _cleanup_network_free_ _cleanup_(network_freep)
325 int network_get(Manager *manager, struct udev_device *device,
326 const char *ifname, const struct ether_addr *mac,
328 int network_apply(Manager *manager, Network *network, Link *link);
330 int config_parse_netdev(const char *unit, const char *filename, unsigned line,
331 const char *section, unsigned section_line, const char *lvalue,
332 int ltype, const char *rvalue, void *data, void *userdata);
334 int config_parse_tunnel(const char *unit,
335 const char *filename,
338 unsigned section_line,
345 int config_parse_tunnel_address(const char *unit,
346 const char *filename,
349 unsigned section_line,
357 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
360 int route_new_static(Network *network, unsigned section, Route **ret);
361 int route_new_dynamic(Route **ret);
362 void route_free(Route *route);
363 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
364 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
367 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
368 #define _cleanup_route_free_ _cleanup_(route_freep)
370 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
371 const char *section, unsigned section_line, const char *lvalue,
372 int ltype, const char *rvalue, void *data, void *userdata);
374 int config_parse_destination(const char *unit, const char *filename, unsigned line,
375 const char *section, unsigned section_line, const char *lvalue,
376 int ltype, const char *rvalue, void *data, void *userdata);
379 int address_new_static(Network *network, unsigned section, Address **ret);
380 int address_new_dynamic(Address **ret);
381 void address_free(Address *address);
382 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
383 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
384 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
385 bool address_equal(Address *a1, Address *a2);
387 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
388 #define _cleanup_address_free_ _cleanup_(address_freep)
390 int config_parse_dns(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_address(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);
398 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
399 const char *section, unsigned section_line, const char *lvalue,
400 int ltype, const char *rvalue, void *data, void *userdata);
402 int config_parse_label(const char *unit, const char *filename, unsigned line,
403 const char *section, unsigned section_line, const char *lvalue,
404 int ltype, const char *rvalue, void *data, void *userdata);
408 Link *link_unref(Link *link);
409 Link *link_ref(Link *link);
410 int link_get(Manager *m, int ifindex, Link **ret);
411 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
412 void link_drop(Link *link);
414 int link_update(Link *link, sd_rtnl_message *message);
415 int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata);
417 int link_initialized(Link *link, struct udev_device *device);
419 int link_save(Link *link);
421 bool link_has_carrier(unsigned flags, uint8_t operstate);
423 const char* link_state_to_string(LinkState s) _const_;
424 LinkState link_state_from_string(const char *s) _pure_;
426 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
427 #define _cleanup_link_unref_ _cleanup_(link_unrefp)
429 /* Macros which append INTERFACE= to the message */
431 #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__)
432 #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__)
433 #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__)
434 #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__)
435 #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__)
436 #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__)
438 #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
440 /* More macros which append INTERFACE= to the message */
442 #define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->ifname, "%*s: " fmt, IFNAMSIZ, netdev->ifname, ##__VA_ARGS__)
443 #define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__)
444 #define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__)
445 #define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__)
446 #define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__)
447 #define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__)
449 #define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->ifname, __VA_ARGS__)
451 #define NETDEV(netdev) "INTERFACE=%s", netdev->ifname
452 #define ADDRESS_FMT_VAL(address) \
453 (address).s_addr & 0xFF, \
454 ((address).s_addr >> 8) & 0xFF, \
455 ((address).s_addr >> 16) & 0xFF, \
456 (address).s_addr >> 24