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"
37 #include "rtnl-util.h"
41 #include "condition.h"
42 #include "in-addr-util.h"
44 #define CACHE_INFO_INFINITY_LIFE_TIME 0xFFFFFFFFU
45 #define DHCP_ROUTE_METRIC 1024
46 #define IPV4LL_ROUTE_METRIC 2048
48 typedef struct NetDev NetDev;
49 typedef struct Network Network;
50 typedef struct Link Link;
51 typedef struct Address Address;
52 typedef struct Route Route;
53 typedef struct Manager Manager;
54 typedef struct AddressPool AddressPool;
55 typedef struct FdbEntry FdbEntry;
57 typedef enum AddressFamilyBoolean {
62 _ADDRESS_FAMILY_BOOLEAN_MAX,
63 _ADDRESS_FAMILY_BOOLEAN_INVALID = -1,
64 } AddressFamilyBoolean;
66 typedef enum LLMNRSupport {
69 LLMNR_SUPPORT_RESOLVE,
71 _LLMNR_SUPPORT_INVALID = -1,
78 struct ether_addr *mac_addr;
81 LIST_FIELDS(FdbEntry, static_fdb_entries);
89 struct ether_addr *match_mac;
94 char *dhcp_vendor_class_identifier;
96 Condition *match_host;
97 Condition *match_virt;
98 Condition *match_kernel;
99 Condition *match_arch;
104 Hashmap *stacked_netdevs;
105 AddressFamilyBoolean dhcp;
115 unsigned dhcp_route_metric;
126 struct ether_addr *mac;
131 LIST_HEAD(Address, static_addresses);
132 LIST_HEAD(Route, static_routes);
133 LIST_HEAD(FdbEntry, static_fdb_entries);
135 Hashmap *addresses_by_section;
136 Hashmap *routes_by_section;
137 Hashmap *fdb_entries_by_section;
139 bool wildcard_domain;
140 char **domains, **dns, **ntp;
144 LIST_FIELDS(Network, networks);
152 unsigned char prefixlen;
157 struct in_addr broadcast;
158 struct ifa_cacheinfo cinfo;
160 union in_addr_union in_addr;
161 union in_addr_union in_addr_peer;
163 bool ip_forward_done;
165 LIST_FIELDS(Address, addresses);
173 unsigned char dst_prefixlen;
174 unsigned char src_prefixlen;
177 unsigned char protocol; /* RTPROT_* */
179 union in_addr_union in_addr;
180 union in_addr_union dst_addr;
181 union in_addr_union src_addr;
182 union in_addr_union prefsrc_addr;
184 LIST_FIELDS(Route, routes);
193 union in_addr_union in_addr;
195 LIST_FIELDS(AddressPool, address_pools);
203 struct udev_monitor *udev_monitor;
204 sd_event_source *udev_event_source;
210 LIST_HEAD(Network, networks);
211 LIST_HEAD(AddressPool, address_pools);
213 usec_t network_dirs_ts_usec;
216 extern const char* const network_dirs[];
220 int manager_new(Manager **ret);
221 void manager_free(Manager *m);
223 int manager_load_config(Manager *m);
224 bool manager_should_reload(Manager *m);
226 int manager_rtnl_enumerate_links(Manager *m);
227 int manager_rtnl_enumerate_addresses(Manager *m);
229 int manager_rtnl_listen(Manager *m);
230 int manager_udev_listen(Manager *m);
231 int manager_bus_listen(Manager *m);
233 int manager_save(Manager *m);
235 int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found);
237 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
238 #define _cleanup_manager_free_ _cleanup_(manager_freep)
242 int network_load(Manager *manager);
244 void network_free(Network *network);
246 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
247 #define _cleanup_network_free_ _cleanup_(network_freep)
249 int network_get(Manager *manager, struct udev_device *device,
250 const char *ifname, const struct ether_addr *mac,
252 int network_apply(Manager *manager, Network *network, Link *link);
254 int config_parse_netdev(const char *unit, const char *filename, unsigned line,
255 const char *section, unsigned section_line, const char *lvalue,
256 int ltype, const char *rvalue, void *data, void *userdata);
258 int config_parse_domains(const char *unit,
259 const char *filename,
262 unsigned section_line,
269 int config_parse_tunnel(const char *unit,
270 const char *filename,
273 unsigned section_line,
280 int config_parse_tunnel_address(const char *unit,
281 const char *filename,
284 unsigned section_line,
291 int config_parse_vxlan_group_address(const char *unit,
292 const char *filename,
295 unsigned section_line,
303 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
306 int route_new_static(Network *network, unsigned section, Route **ret);
307 int route_new_dynamic(Route **ret, unsigned char rtm_protocol);
308 void route_free(Route *route);
309 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
310 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
313 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
314 #define _cleanup_route_free_ _cleanup_(route_freep)
316 int config_parse_gateway(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 config_parse_destination(const char *unit, const char *filename, unsigned line,
321 const char *section, unsigned section_line, const char *lvalue,
322 int ltype, const char *rvalue, void *data, void *userdata);
324 int config_parse_route_priority(const char *unit, const char *filename, unsigned line,
325 const char *section, unsigned section_line, const char *lvalue,
326 int ltype, const char *rvalue, void *data, void *userdata);
328 int address_new_static(Network *network, unsigned section, Address **ret);
329 int address_new_dynamic(Address **ret);
330 void address_free(Address *address);
331 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
332 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
333 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
334 int address_establish(Address *address, Link *link);
335 int address_release(Address *address, Link *link);
336 bool address_equal(Address *a1, Address *a2);
338 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
339 #define _cleanup_address_free_ _cleanup_(address_freep)
341 int config_parse_address(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_broadcast(const char *unit, const char *filename, unsigned line,
346 const char *section, unsigned section_line, const char *lvalue,
347 int ltype, const char *rvalue, void *data, void *userdata);
349 int config_parse_label(const char *unit, const char *filename, unsigned line,
350 const char *section, unsigned section_line, const char *lvalue,
351 int ltype, const char *rvalue, void *data, void *userdata);
353 /* Forwarding database table. */
354 int fdb_entry_configure(sd_rtnl *const rtnl, FdbEntry *const fdb_entry, const int ifindex);
355 void fdb_entry_free(FdbEntry *fdb_entry);
356 int fdb_entry_new_static(Network *const network, const unsigned section, FdbEntry **ret);
358 DEFINE_TRIVIAL_CLEANUP_FUNC(FdbEntry*, fdb_entry_free);
359 #define _cleanup_fdbentry_free_ _cleanup_(fdb_entry_freep)
361 int config_parse_fdb_hwaddr(const char *unit, const char *filename, unsigned line,
362 const char *section, unsigned section_line, const char *lvalue,
363 int ltype, const char *rvalue, void *data, void *userdata);
365 int config_parse_fdb_vlan_id(const char *unit, const char *filename, unsigned line,
366 const char *section, unsigned section_line, const char *lvalue,
367 int ltype, const char *rvalue, void *data, void *userdata);
371 int config_parse_dhcp(const char *unit, const char *filename, unsigned line,
372 const char *section, unsigned section_line, const char *lvalue,
373 int ltype, const char *rvalue, void *data, void *userdata);
377 const char* llmnr_support_to_string(LLMNRSupport i) _const_;
378 LLMNRSupport llmnr_support_from_string(const char *s) _pure_;
380 int config_parse_llmnr(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);
386 int address_pool_new(Manager *m, AddressPool **ret, int family, const union in_addr_union *u, unsigned prefixlen);
387 int address_pool_new_from_string(Manager *m, AddressPool **ret, int family, const char *p, unsigned prefixlen);
388 void address_pool_free(AddressPool *p);
390 int address_pool_acquire(AddressPool *p, unsigned prefixlen, union in_addr_union *found);
392 const char *address_family_boolean_to_string(AddressFamilyBoolean b) _const_;
393 AddressFamilyBoolean address_family_boolean_from_string(const char *s) _const_;