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"
32 #include "sd-icmp6-nd.h"
33 #include "sd-dhcp6-client.h"
36 #include "rtnl-util.h"
40 #include "condition.h"
41 #include "in-addr-util.h"
43 #define CACHE_INFO_INFINITY_LIFE_TIME 0xFFFFFFFFU
44 #define DHCP_ROUTE_METRIC 1024
45 #define IPV4LL_ROUTE_METRIC 2048
47 typedef struct NetDev NetDev;
48 typedef struct Network Network;
49 typedef struct Link Link;
50 typedef struct Address Address;
51 typedef struct Route Route;
52 typedef struct Manager Manager;
53 typedef struct AddressPool AddressPool;
54 typedef struct FdbEntry FdbEntry;
56 typedef enum DHCPSupport {
62 _DHCP_SUPPORT_INVALID = -1,
65 typedef enum LLMNRSupport {
68 LLMNR_SUPPORT_RESOLVE,
70 _LLMNR_SUPPORT_INVALID = -1,
77 struct ether_addr *mac_addr;
80 LIST_FIELDS(FdbEntry, static_fdb_entries);
88 struct ether_addr *match_mac;
93 char *dhcp_vendor_class_identifier;
95 Condition *match_host;
96 Condition *match_virt;
97 Condition *match_kernel;
98 Condition *match_arch;
103 Hashmap *stacked_netdevs;
114 unsigned dhcp_route_metric;
122 struct ether_addr *mac;
125 LIST_HEAD(Address, static_addresses);
126 LIST_HEAD(Route, static_routes);
127 LIST_HEAD(FdbEntry, static_fdb_entries);
129 Hashmap *addresses_by_section;
130 Hashmap *routes_by_section;
131 Hashmap *fdb_entries_by_section;
133 bool wildcard_domain;
134 char **domains, **dns, **ntp;
138 LIST_FIELDS(Network, networks);
146 unsigned char prefixlen;
151 struct in_addr broadcast;
152 struct ifa_cacheinfo cinfo;
154 union in_addr_union in_addr;
155 union in_addr_union in_addr_peer;
157 LIST_FIELDS(Address, addresses);
165 unsigned char dst_prefixlen;
166 unsigned char src_prefixlen;
169 unsigned char protocol; /* RTPROT_* */
171 union in_addr_union in_addr;
172 union in_addr_union dst_addr;
173 union in_addr_union src_addr;
174 union in_addr_union prefsrc_addr;
176 LIST_FIELDS(Route, routes);
185 union in_addr_union in_addr;
187 LIST_FIELDS(AddressPool, address_pools);
195 struct udev_monitor *udev_monitor;
196 sd_event_source *udev_event_source;
202 LIST_HEAD(Network, networks);
203 LIST_HEAD(AddressPool, address_pools);
205 usec_t network_dirs_ts_usec;
208 extern const char* const network_dirs[];
212 int manager_new(Manager **ret);
213 void manager_free(Manager *m);
215 int manager_load_config(Manager *m);
216 bool manager_should_reload(Manager *m);
218 int manager_rtnl_enumerate_links(Manager *m);
219 int manager_rtnl_enumerate_addresses(Manager *m);
221 int manager_rtnl_listen(Manager *m);
222 int manager_udev_listen(Manager *m);
223 int manager_bus_listen(Manager *m);
225 int manager_save(Manager *m);
227 int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found);
229 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
230 #define _cleanup_manager_free_ _cleanup_(manager_freep)
234 int network_load(Manager *manager);
236 void network_free(Network *network);
238 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
239 #define _cleanup_network_free_ _cleanup_(network_freep)
241 int network_get(Manager *manager, struct udev_device *device,
242 const char *ifname, const struct ether_addr *mac,
244 int network_apply(Manager *manager, Network *network, Link *link);
246 int config_parse_netdev(const char *unit, const char *filename, unsigned line,
247 const char *section, unsigned section_line, const char *lvalue,
248 int ltype, const char *rvalue, void *data, void *userdata);
250 int config_parse_domains(const char *unit,
251 const char *filename,
254 unsigned section_line,
261 int config_parse_tunnel(const char *unit,
262 const char *filename,
265 unsigned section_line,
272 int config_parse_tunnel_address(const char *unit,
273 const char *filename,
276 unsigned section_line,
283 int config_parse_vxlan_group_address(const char *unit,
284 const char *filename,
287 unsigned section_line,
295 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
298 int route_new_static(Network *network, unsigned section, Route **ret);
299 int route_new_dynamic(Route **ret, unsigned char rtm_protocol);
300 void route_free(Route *route);
301 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
302 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
305 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
306 #define _cleanup_route_free_ _cleanup_(route_freep)
308 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
309 const char *section, unsigned section_line, const char *lvalue,
310 int ltype, const char *rvalue, void *data, void *userdata);
312 int config_parse_destination(const char *unit, const char *filename, unsigned line,
313 const char *section, unsigned section_line, const char *lvalue,
314 int ltype, const char *rvalue, void *data, void *userdata);
316 int config_parse_route_priority(const char *unit, const char *filename, unsigned line,
317 const char *section, unsigned section_line, const char *lvalue,
318 int ltype, const char *rvalue, void *data, void *userdata);
320 int address_new_static(Network *network, unsigned section, Address **ret);
321 int address_new_dynamic(Address **ret);
322 void address_free(Address *address);
323 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
324 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
325 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
326 bool address_equal(Address *a1, Address *a2);
328 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
329 #define _cleanup_address_free_ _cleanup_(address_freep)
331 int config_parse_address(const char *unit, const char *filename, unsigned line,
332 const char *section, unsigned section_line, const char *lvalue,
333 int ltype, const char *rvalue, void *data, void *userdata);
335 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
336 const char *section, unsigned section_line, const char *lvalue,
337 int ltype, const char *rvalue, void *data, void *userdata);
339 int config_parse_label(const char *unit, const char *filename, unsigned line,
340 const char *section, unsigned section_line, const char *lvalue,
341 int ltype, const char *rvalue, void *data, void *userdata);
343 /* Forwarding database table. */
344 int fdb_entry_configure(sd_rtnl *const rtnl, FdbEntry *const fdb_entry, const int ifindex);
345 void fdb_entry_free(FdbEntry *fdb_entry);
346 int fdb_entry_new_static(Network *const network, const unsigned section, FdbEntry **ret);
348 DEFINE_TRIVIAL_CLEANUP_FUNC(FdbEntry*, fdb_entry_free);
349 #define _cleanup_fdbentry_free_ _cleanup_(fdb_entry_freep)
351 int config_parse_fdb_hwaddr(const char *unit, const char *filename, unsigned line,
352 const char *section, unsigned section_line, const char *lvalue,
353 int ltype, const char *rvalue, void *data, void *userdata);
355 int config_parse_fdb_vlan_id(const char *unit, const char *filename, unsigned line,
356 const char *section, unsigned section_line, const char *lvalue,
357 int ltype, const char *rvalue, void *data, void *userdata);
361 const char* dhcp_support_to_string(DHCPSupport i) _const_;
362 DHCPSupport dhcp_support_from_string(const char *s) _pure_;
364 int config_parse_dhcp(const char *unit, const char *filename, unsigned line,
365 const char *section, unsigned section_line, const char *lvalue,
366 int ltype, const char *rvalue, void *data, void *userdata);
370 const char* llmnr_support_to_string(LLMNRSupport i) _const_;
371 LLMNRSupport llmnr_support_from_string(const char *s) _pure_;
373 int config_parse_llmnr(const char *unit, const char *filename, unsigned line,
374 const char *section, unsigned section_line, const char *lvalue,
375 int ltype, const char *rvalue, void *data, void *userdata);
379 int address_pool_new(Manager *m, AddressPool **ret, int family, const union in_addr_union *u, unsigned prefixlen);
380 int address_pool_new_from_string(Manager *m, AddressPool **ret, int family, const char *p, unsigned prefixlen);
381 void address_pool_free(AddressPool *p);
383 int address_pool_acquire(AddressPool *p, unsigned prefixlen, union in_addr_union *found);