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/>.
25 #include "network-internal.h"
26 #include "path-util.h"
27 #include "conf-files.h"
28 #include "conf-parser.h"
31 static int network_load_one(Manager *manager, const char *filename) {
32 _cleanup_network_free_ Network *network = NULL;
33 _cleanup_fclose_ FILE *file = NULL;
41 file = fopen(filename, "re");
49 if (null_or_empty_path(filename)) {
50 log_debug("skipping empty file: %s", filename);
54 network = new0(Network, 1);
58 network->manager = manager;
60 LIST_HEAD_INIT(network->static_addresses);
61 LIST_HEAD_INIT(network->static_routes);
63 network->vlans = hashmap_new(string_hash_func, string_compare_func);
67 network->macvlans = hashmap_new(uint64_hash_func, uint64_compare_func);
68 if (!network->macvlans)
71 network->addresses_by_section = hashmap_new(uint64_hash_func, uint64_compare_func);
72 if (!network->addresses_by_section)
75 network->routes_by_section = hashmap_new(uint64_hash_func, uint64_compare_func);
76 if (!network->routes_by_section)
79 network->dns = set_new(NULL, NULL);
83 network->filename = strdup(filename);
84 if (!network->filename)
87 network->dhcp_dns = true;
88 network->dhcp_hostname = true;
89 network->dhcp_domainname = true;
91 r = config_parse(NULL, filename, file, "Match\0Network\0Address\0Route\0DHCPv4\0", config_item_perf_lookup,
92 (void*) network_network_gperf_lookup, false, false, network);
94 log_warning("Could not parse config file %s: %s", filename, strerror(-r));
98 LIST_PREPEND(networks, manager->networks, network);
100 LIST_FOREACH(static_routes, route, network->static_routes) {
101 if (!route->family) {
102 log_warning("Route section without Gateway field configured in %s. "
103 "Ignoring", filename);
108 LIST_FOREACH(static_addresses, address, network->static_addresses) {
109 if (!address->family) {
110 log_warning("Address section without Address field configured in %s. "
111 "Ignoring", filename);
121 int network_load(Manager *manager) {
123 _cleanup_strv_free_ char **files = NULL;
129 while ((network = manager->networks))
130 network_free(network);
132 r = conf_files_list_strv(&files, ".network", NULL, network_dirs);
134 log_error("Failed to enumerate network files: %s", strerror(-r));
138 STRV_FOREACH_BACKWARDS(f, files) {
139 r = network_load_one(manager, *f);
147 void network_free(Network *network) {
155 free(network->filename);
157 free(network->match_mac);
158 free(network->match_path);
159 free(network->match_driver);
160 free(network->match_type);
161 free(network->match_name);
163 free(network->description);
165 SET_FOREACH(address, network->dns, i)
166 address_free(address);
168 set_free(network->dns);
170 hashmap_free(network->vlans);
172 hashmap_free(network->macvlans);
174 while ((route = network->static_routes))
177 while ((address = network->static_addresses))
178 address_free(address);
180 hashmap_free(network->addresses_by_section);
181 hashmap_free(network->routes_by_section);
183 if (network->manager && network->manager->networks)
184 LIST_REMOVE(networks, network->manager->networks, network);
186 condition_free_list(network->match_host);
187 condition_free_list(network->match_virt);
188 condition_free_list(network->match_kernel);
189 condition_free_list(network->match_arch);
194 int network_get(Manager *manager, struct udev_device *device,
195 const char *ifname, const struct ether_addr *address,
202 LIST_FOREACH(networks, network, manager->networks) {
203 if (net_match_config(network->match_mac, network->match_path,
204 network->match_driver, network->match_type,
205 network->match_name, network->match_host,
206 network->match_virt, network->match_kernel,
209 udev_device_get_property_value(device, "ID_PATH"),
210 udev_device_get_driver(udev_device_get_parent(device)),
211 udev_device_get_property_value(device, "ID_NET_DRIVER"),
212 udev_device_get_devtype(device),
214 log_debug("%s: found matching network '%s'", ifname,
226 int network_apply(Manager *manager, Network *network, Link *link) {
229 link->network = network;
232 r = manager_update_resolv_conf(manager);
240 int config_parse_netdev(const char *unit,
241 const char *filename,
244 unsigned section_line,
250 Network *network = userdata;
251 char *kind_string, *p;
261 kind_string = strdup(lvalue);
265 /* the keys are CamelCase versions of the kind */
266 for (p = kind_string; *p; p++)
269 kind = netdev_kind_from_string(kind_string);
270 if (kind == _NETDEV_KIND_INVALID) {
271 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
272 "Invalid NetDev kind: %s", lvalue);
276 r = netdev_get(network->manager, rvalue, &netdev);
278 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
279 "%s could not be found, ignoring assignment: %s", lvalue, rvalue);
283 if (netdev->kind != kind) {
284 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
285 "NetDev is not a %s, ignoring assignment: %s", lvalue, rvalue);
290 case NETDEV_KIND_BRIDGE:
291 network->bridge = netdev;
294 case NETDEV_KIND_BOND:
295 network->bond = netdev;
298 case NETDEV_KIND_VLAN:
299 r = hashmap_put(network->vlans, &netdev->vlanid, netdev);
301 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
302 "Can not add VLAN to network: %s", rvalue);
307 case NETDEV_KIND_MACVLAN:
308 r = hashmap_put(network->macvlans, netdev->name, netdev);
310 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
311 "Can not add MACVLAN to network: %s", rvalue);
317 assert_not_reached("Can not parse NetDev");