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;
55 typedef enum DHCPSupport {
61 _DHCP_SUPPORT_INVALID = -1,
64 typedef enum LLMNRSupport {
67 LLMNR_SUPPORT_RESOLVE,
69 _LLMNR_SUPPORT_INVALID = -1,
77 struct ether_addr *match_mac;
82 char *dhcp_vendor_class_identifier;
84 Condition *match_host;
85 Condition *match_virt;
86 Condition *match_kernel;
87 Condition *match_arch;
92 Hashmap *stacked_netdevs;
103 unsigned dhcp_route_metric;
111 struct ether_addr *mac;
114 LIST_HEAD(Address, static_addresses);
115 LIST_HEAD(Route, static_routes);
117 Hashmap *addresses_by_section;
118 Hashmap *routes_by_section;
120 bool wildcard_domain;
121 char **domains, **dns, **ntp;
125 LIST_FIELDS(Network, networks);
133 unsigned char prefixlen;
138 struct in_addr broadcast;
139 struct ifa_cacheinfo cinfo;
141 union in_addr_union in_addr;
142 union in_addr_union in_addr_peer;
144 LIST_FIELDS(Address, addresses);
152 unsigned char dst_prefixlen;
153 unsigned char src_prefixlen;
156 unsigned char protocol; /* RTPROT_* */
158 union in_addr_union in_addr;
159 union in_addr_union dst_addr;
160 union in_addr_union src_addr;
161 union in_addr_union prefsrc_addr;
163 LIST_FIELDS(Route, routes);
172 union in_addr_union in_addr;
174 LIST_FIELDS(AddressPool, address_pools);
182 struct udev_monitor *udev_monitor;
183 sd_event_source *udev_event_source;
189 LIST_HEAD(Network, networks);
190 LIST_HEAD(AddressPool, address_pools);
192 usec_t network_dirs_ts_usec;
195 extern const char* const network_dirs[];
199 int manager_new(Manager **ret);
200 void manager_free(Manager *m);
202 int manager_load_config(Manager *m);
203 bool manager_should_reload(Manager *m);
205 int manager_rtnl_enumerate_links(Manager *m);
206 int manager_rtnl_enumerate_addresses(Manager *m);
208 int manager_rtnl_listen(Manager *m);
209 int manager_udev_listen(Manager *m);
210 int manager_bus_listen(Manager *m);
212 int manager_save(Manager *m);
214 int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found);
216 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
217 #define _cleanup_manager_free_ _cleanup_(manager_freep)
221 int network_load(Manager *manager);
223 void network_free(Network *network);
225 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
226 #define _cleanup_network_free_ _cleanup_(network_freep)
228 int network_get(Manager *manager, struct udev_device *device,
229 const char *ifname, const struct ether_addr *mac,
231 int network_apply(Manager *manager, Network *network, Link *link);
233 int config_parse_netdev(const char *unit, const char *filename, unsigned line,
234 const char *section, unsigned section_line, const char *lvalue,
235 int ltype, const char *rvalue, void *data, void *userdata);
237 int config_parse_domains(const char *unit,
238 const char *filename,
241 unsigned section_line,
248 int config_parse_tunnel(const char *unit,
249 const char *filename,
252 unsigned section_line,
259 int config_parse_tunnel_address(const char *unit,
260 const char *filename,
263 unsigned section_line,
270 int config_parse_vxlan_group_address(const char *unit,
271 const char *filename,
274 unsigned section_line,
282 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
285 int route_new_static(Network *network, unsigned section, Route **ret);
286 int route_new_dynamic(Route **ret, unsigned char rtm_protocol);
287 void route_free(Route *route);
288 int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);
289 int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback);
292 DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
293 #define _cleanup_route_free_ _cleanup_(route_freep)
295 int config_parse_gateway(const char *unit, const char *filename, unsigned line,
296 const char *section, unsigned section_line, const char *lvalue,
297 int ltype, const char *rvalue, void *data, void *userdata);
299 int config_parse_destination(const char *unit, const char *filename, unsigned line,
300 const char *section, unsigned section_line, const char *lvalue,
301 int ltype, const char *rvalue, void *data, void *userdata);
303 int config_parse_route_priority(const char *unit, const char *filename, unsigned line,
304 const char *section, unsigned section_line, const char *lvalue,
305 int ltype, const char *rvalue, void *data, void *userdata);
307 int address_new_static(Network *network, unsigned section, Address **ret);
308 int address_new_dynamic(Address **ret);
309 void address_free(Address *address);
310 int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);
311 int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback);
312 int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback);
313 bool address_equal(Address *a1, Address *a2);
315 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
316 #define _cleanup_address_free_ _cleanup_(address_freep)
318 int config_parse_address(const char *unit, const char *filename, unsigned line,
319 const char *section, unsigned section_line, const char *lvalue,
320 int ltype, const char *rvalue, void *data, void *userdata);
322 int config_parse_broadcast(const char *unit, const char *filename, unsigned line,
323 const char *section, unsigned section_line, const char *lvalue,
324 int ltype, const char *rvalue, void *data, void *userdata);
326 int config_parse_label(const char *unit, const char *filename, unsigned line,
327 const char *section, unsigned section_line, const char *lvalue,
328 int ltype, const char *rvalue, void *data, void *userdata);
332 const char* dhcp_support_to_string(DHCPSupport i) _const_;
333 DHCPSupport dhcp_support_from_string(const char *s) _pure_;
335 int config_parse_dhcp(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);
341 const char* llmnr_support_to_string(LLMNRSupport i) _const_;
342 LLMNRSupport llmnr_support_from_string(const char *s) _pure_;
344 int config_parse_llmnr(const char *unit, const char *filename, unsigned line,
345 const char *section, unsigned section_line, const char *lvalue,
346 int ltype, const char *rvalue, void *data, void *userdata);
350 int address_pool_new(Manager *m, AddressPool **ret, int family, const union in_addr_union *u, unsigned prefixlen);
351 int address_pool_new_from_string(Manager *m, AddressPool **ret, int family, const char *p, unsigned prefixlen);
352 void address_pool_free(AddressPool *p);
354 int address_pool_acquire(AddressPool *p, unsigned prefixlen, union in_addr_union *found);