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
{
58 /* This is a bitmask, though it usually doesn't feel that way! */
59 ADDRESS_FAMILY_NO
= 0,
60 ADDRESS_FAMILY_IPV4
= 1,
61 ADDRESS_FAMILY_IPV6
= 2,
62 ADDRESS_FAMILY_YES
= 3,
63 _ADDRESS_FAMILY_BOOLEAN_MAX
,
64 _ADDRESS_FAMILY_BOOLEAN_INVALID
= -1,
65 } AddressFamilyBoolean
;
67 typedef enum LLMNRSupport
{
70 LLMNR_SUPPORT_RESOLVE
,
72 _LLMNR_SUPPORT_INVALID
= -1,
79 struct ether_addr
*mac_addr
;
82 LIST_FIELDS(FdbEntry
, static_fdb_entries
);
90 struct ether_addr
*match_mac
;
95 char *dhcp_vendor_class_identifier
;
97 Condition
*match_host
;
98 Condition
*match_virt
;
99 Condition
*match_kernel
;
100 Condition
*match_arch
;
105 Hashmap
*stacked_netdevs
;
106 AddressFamilyBoolean dhcp
;
116 unsigned dhcp_route_metric
;
124 AddressFamilyBoolean ip_forward
;
127 struct ether_addr
*mac
;
132 LIST_HEAD(Address
, static_addresses
);
133 LIST_HEAD(Route
, static_routes
);
134 LIST_HEAD(FdbEntry
, static_fdb_entries
);
136 Hashmap
*addresses_by_section
;
137 Hashmap
*routes_by_section
;
138 Hashmap
*fdb_entries_by_section
;
140 bool wildcard_domain
;
141 char **domains
, **dns
, **ntp
;
145 LIST_FIELDS(Network
, networks
);
153 unsigned char prefixlen
;
158 struct in_addr broadcast
;
159 struct ifa_cacheinfo cinfo
;
161 union in_addr_union in_addr
;
162 union in_addr_union in_addr_peer
;
164 bool ip_masquerade_done
;
166 LIST_FIELDS(Address
, addresses
);
174 unsigned char dst_prefixlen
;
175 unsigned char src_prefixlen
;
178 unsigned char protocol
; /* RTPROT_* */
180 union in_addr_union in_addr
;
181 union in_addr_union dst_addr
;
182 union in_addr_union src_addr
;
183 union in_addr_union prefsrc_addr
;
185 LIST_FIELDS(Route
, routes
);
194 union in_addr_union in_addr
;
196 LIST_FIELDS(AddressPool
, address_pools
);
202 sd_event_source
*bus_retry_event_source
;
204 sd_bus_slot
*prepare_for_sleep_slot
;
206 struct udev_monitor
*udev_monitor
;
207 sd_event_source
*udev_event_source
;
213 LIST_HEAD(Network
, networks
);
214 LIST_HEAD(AddressPool
, address_pools
);
216 usec_t network_dirs_ts_usec
;
219 extern const char* const network_dirs
[];
223 int manager_new(Manager
**ret
);
224 void manager_free(Manager
*m
);
226 int manager_load_config(Manager
*m
);
227 bool manager_should_reload(Manager
*m
);
229 int manager_rtnl_enumerate_links(Manager
*m
);
230 int manager_rtnl_enumerate_addresses(Manager
*m
);
232 int manager_rtnl_listen(Manager
*m
);
233 int manager_udev_listen(Manager
*m
);
234 int manager_bus_listen(Manager
*m
);
236 int manager_save(Manager
*m
);
238 int manager_address_pool_acquire(Manager
*m
, int family
, unsigned prefixlen
, union in_addr_union
*found
);
240 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager
*, manager_free
);
241 #define _cleanup_manager_free_ _cleanup_(manager_freep)
245 int network_load(Manager
*manager
);
247 void network_free(Network
*network
);
249 DEFINE_TRIVIAL_CLEANUP_FUNC(Network
*, network_free
);
250 #define _cleanup_network_free_ _cleanup_(network_freep)
252 int network_get(Manager
*manager
, struct udev_device
*device
,
253 const char *ifname
, const struct ether_addr
*mac
,
255 int network_apply(Manager
*manager
, Network
*network
, Link
*link
);
257 int config_parse_netdev(const char *unit
, const char *filename
, unsigned line
,
258 const char *section
, unsigned section_line
, const char *lvalue
,
259 int ltype
, const char *rvalue
, void *data
, void *userdata
);
261 int config_parse_domains(const char *unit
,
262 const char *filename
,
265 unsigned section_line
,
272 int config_parse_tunnel(const char *unit
,
273 const char *filename
,
276 unsigned section_line
,
283 int config_parse_tunnel_address(const char *unit
,
284 const char *filename
,
287 unsigned section_line
,
294 int config_parse_vxlan_group_address(const char *unit
,
295 const char *filename
,
298 unsigned section_line
,
306 const struct ConfigPerfItem
* network_network_gperf_lookup(const char *key
, unsigned length
);
309 int route_new_static(Network
*network
, unsigned section
, Route
**ret
);
310 int route_new_dynamic(Route
**ret
, unsigned char rtm_protocol
);
311 void route_free(Route
*route
);
312 int route_configure(Route
*route
, Link
*link
, sd_rtnl_message_handler_t callback
);
313 int route_drop(Route
*route
, Link
*link
, sd_rtnl_message_handler_t callback
);
316 DEFINE_TRIVIAL_CLEANUP_FUNC(Route
*, route_free
);
317 #define _cleanup_route_free_ _cleanup_(route_freep)
319 int config_parse_gateway(const char *unit
, const char *filename
, unsigned line
,
320 const char *section
, unsigned section_line
, const char *lvalue
,
321 int ltype
, const char *rvalue
, void *data
, void *userdata
);
323 int config_parse_destination(const char *unit
, const char *filename
, unsigned line
,
324 const char *section
, unsigned section_line
, const char *lvalue
,
325 int ltype
, const char *rvalue
, void *data
, void *userdata
);
327 int config_parse_route_priority(const char *unit
, const char *filename
, unsigned line
,
328 const char *section
, unsigned section_line
, const char *lvalue
,
329 int ltype
, const char *rvalue
, void *data
, void *userdata
);
331 int address_new_static(Network
*network
, unsigned section
, Address
**ret
);
332 int address_new_dynamic(Address
**ret
);
333 void address_free(Address
*address
);
334 int address_configure(Address
*address
, Link
*link
, sd_rtnl_message_handler_t callback
);
335 int address_update(Address
*address
, Link
*link
, sd_rtnl_message_handler_t callback
);
336 int address_drop(Address
*address
, Link
*link
, sd_rtnl_message_handler_t callback
);
337 int address_establish(Address
*address
, Link
*link
);
338 int address_release(Address
*address
, Link
*link
);
339 bool address_equal(Address
*a1
, Address
*a2
);
341 DEFINE_TRIVIAL_CLEANUP_FUNC(Address
*, address_free
);
342 #define _cleanup_address_free_ _cleanup_(address_freep)
344 int config_parse_address(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
);
348 int config_parse_broadcast(const char *unit
, const char *filename
, unsigned line
,
349 const char *section
, unsigned section_line
, const char *lvalue
,
350 int ltype
, const char *rvalue
, void *data
, void *userdata
);
352 int config_parse_label(const char *unit
, const char *filename
, unsigned line
,
353 const char *section
, unsigned section_line
, const char *lvalue
,
354 int ltype
, const char *rvalue
, void *data
, void *userdata
);
356 /* Forwarding database table. */
357 int fdb_entry_configure(sd_rtnl
*const rtnl
, FdbEntry
*const fdb_entry
, const int ifindex
);
358 void fdb_entry_free(FdbEntry
*fdb_entry
);
359 int fdb_entry_new_static(Network
*const network
, const unsigned section
, FdbEntry
**ret
);
361 DEFINE_TRIVIAL_CLEANUP_FUNC(FdbEntry
*, fdb_entry_free
);
362 #define _cleanup_fdbentry_free_ _cleanup_(fdb_entry_freep)
364 int config_parse_fdb_hwaddr(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
);
368 int config_parse_fdb_vlan_id(const char *unit
, const char *filename
, unsigned line
,
369 const char *section
, unsigned section_line
, const char *lvalue
,
370 int ltype
, const char *rvalue
, void *data
, void *userdata
);
374 int config_parse_dhcp(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
);
380 const char* llmnr_support_to_string(LLMNRSupport i
) _const_
;
381 LLMNRSupport
llmnr_support_from_string(const char *s
) _pure_
;
383 int config_parse_llmnr(const char *unit
, const char *filename
, unsigned line
,
384 const char *section
, unsigned section_line
, const char *lvalue
,
385 int ltype
, const char *rvalue
, void *data
, void *userdata
);
389 int address_pool_new(Manager
*m
, AddressPool
**ret
, int family
, const union in_addr_union
*u
, unsigned prefixlen
);
390 int address_pool_new_from_string(Manager
*m
, AddressPool
**ret
, int family
, const char *p
, unsigned prefixlen
);
391 void address_pool_free(AddressPool
*p
);
393 int address_pool_acquire(AddressPool
*p
, unsigned prefixlen
, union in_addr_union
*found
);
395 const char *address_family_boolean_to_string(AddressFamilyBoolean b
) _const_
;
396 AddressFamilyBoolean
address_family_boolean_from_string(const char *s
) _const_
;
398 int config_parse_address_family_boolean(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
);