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/>.
28 #include "conf-parser.h"
29 #include "network-internal.h"
31 static void address_init(Address *address) {
34 address->family = AF_UNSPEC;
35 address->scope = RT_SCOPE_UNIVERSE;
36 address->cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME;
37 address->cinfo.ifa_valid = CACHE_INFO_INFINITY_LIFE_TIME;
40 int address_new_static(Network *network, unsigned section, Address **ret) {
41 _cleanup_address_free_ Address *address = NULL;
44 uint64_t key = section;
45 address = hashmap_get(network->addresses_by_section, &key);
54 address = new0(Address, 1);
58 address_init(address);
60 address->network = network;
62 LIST_PREPEND(static_addresses, network->static_addresses, address);
65 address->section = section;
66 hashmap_put(network->addresses_by_section, &address->section, address);
75 int address_new_dynamic(Address **ret) {
76 _cleanup_address_free_ Address *address = NULL;
78 address = new0(Address, 1);
82 address_init(address);
90 void address_free(Address *address) {
94 if (address->network) {
95 LIST_REMOVE(static_addresses, address->network->static_addresses, address);
98 hashmap_remove(address->network->addresses_by_section,
105 int address_drop(Address *address, Link *link,
106 sd_rtnl_message_handler_t callback) {
107 _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
111 assert(address->family == AF_INET || address->family == AF_INET6);
113 assert(link->ifindex > 0);
114 assert(link->manager);
115 assert(link->manager->rtnl);
117 r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_DELADDR,
118 link->ifindex, address->family);
120 log_error("Could not allocate RTM_DELADDR message: %s",
125 r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
127 log_error("Could not set prefixlen: %s", strerror(-r));
131 if (address->family == AF_INET)
132 r = sd_rtnl_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in);
133 else if (address->family == AF_INET6)
134 r = sd_rtnl_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6);
136 log_error("Could not append IFA_LOCAL attribute: %s",
141 r = sd_rtnl_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
143 log_error("Could not send rtnetlink message: %s", strerror(-r));
150 int address_update(Address *address, Link *link,
151 sd_rtnl_message_handler_t callback) {
152 _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
156 assert(address->family == AF_INET || address->family == AF_INET6);
157 assert(link->ifindex > 0);
158 assert(link->manager);
159 assert(link->manager->rtnl);
161 r = sd_rtnl_message_new_addr_update(link->manager->rtnl, &req,
162 link->ifindex, address->family);
164 log_error("Could not allocate RTM_NEWADDR message: %s",
169 r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
171 log_error("Could not set prefixlen: %s", strerror(-r));
175 r = sd_rtnl_message_addr_set_flags(req, IFA_F_PERMANENT);
177 log_error("Could not set flags: %s", strerror(-r));
181 r = sd_rtnl_message_addr_set_scope(req, address->scope);
183 log_error("Could not set scope: %s", strerror(-r));
187 if (address->family == AF_INET)
188 r = sd_rtnl_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in);
189 else if (address->family == AF_INET6)
190 r = sd_rtnl_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6);
192 log_error("Could not append IFA_LOCAL attribute: %s",
197 if (address->family == AF_INET) {
198 r = sd_rtnl_message_append_in_addr(req, IFA_BROADCAST, &address->broadcast);
200 log_error("Could not append IFA_BROADCAST attribute: %s",
206 if (address->label) {
207 r = sd_rtnl_message_append_string(req, IFA_LABEL, address->label);
209 log_error("Could not append IFA_LABEL attribute: %s",
215 r = sd_rtnl_message_append_cache_info(req, IFA_CACHEINFO, &address->cinfo);
217 log_error("Could not append IFA_CACHEINFO attribute: %s",
222 r = sd_rtnl_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
224 log_error("Could not send rtnetlink message: %s", strerror(-r));
231 int address_configure(Address *address, Link *link,
232 sd_rtnl_message_handler_t callback) {
233 _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
237 assert(address->family == AF_INET || address->family == AF_INET6);
239 assert(link->ifindex > 0);
240 assert(link->manager);
241 assert(link->manager->rtnl);
243 r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_NEWADDR,
244 link->ifindex, address->family);
246 log_error("Could not allocate RTM_NEWADDR message: %s",
251 r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
253 log_error("Could not set prefixlen: %s", strerror(-r));
257 r = sd_rtnl_message_addr_set_flags(req, IFA_F_PERMANENT);
259 log_error("Could not set flags: %s", strerror(-r));
263 r = sd_rtnl_message_addr_set_scope(req, address->scope);
265 log_error("Could not set scope: %s", strerror(-r));
269 if (address->family == AF_INET)
270 r = sd_rtnl_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in);
271 else if (address->family == AF_INET6)
272 r = sd_rtnl_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6);
274 log_error("Could not append IFA_LOCAL attribute: %s",
279 if (address->family == AF_INET) {
280 r = sd_rtnl_message_append_in_addr(req, IFA_BROADCAST, &address->broadcast);
282 log_error("Could not append IFA_BROADCAST attribute: %s",
288 if (address->label) {
289 r = sd_rtnl_message_append_string(req, IFA_LABEL, address->label);
291 log_error("Could not append IFA_LABEL attribute: %s",
297 r = sd_rtnl_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
299 log_error("Could not send rtnetlink message: %s", strerror(-r));
306 int config_parse_dns(const char *unit,
307 const char *filename,
310 unsigned section_line,
317 _cleanup_address_free_ Address *n = NULL;
326 r = address_new_dynamic(&n);
330 r = net_parse_inaddr(rvalue, &n->family, &n->in_addr);
332 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
333 "DNS address is invalid, ignoring assignment: %s", rvalue);
343 int config_parse_broadcast(const char *unit,
344 const char *filename,
347 unsigned section_line,
353 Network *network = userdata;
354 _cleanup_address_free_ Address *n = NULL;
355 _cleanup_free_ char *address = NULL;
364 r = address_new_static(network, section_line, &n);
368 if (n->family == AF_INET6) {
369 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
370 "Broadcast is not valid for IPv6 addresses, "
371 "ignoring assignment: %s", address);
375 r = net_parse_inaddr(address, &n->family, &n->broadcast);
377 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
378 "Broadcast is invalid, ignoring assignment: %s", address);
387 int config_parse_address(const char *unit,
388 const char *filename,
391 unsigned section_line,
397 Network *network = userdata;
398 _cleanup_address_free_ Address *n = NULL;
399 _cleanup_free_ char *address = NULL;
409 if (streq(section, "Network")) {
410 /* we are not in an Address section, so treat
411 * this as the special '0' section */
415 r = address_new_static(network, section_line, &n);
419 /* Address=address/prefixlen */
422 e = strchr(rvalue, '/');
425 r = safe_atou(e + 1, &i);
427 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
428 "Interface prefix length is invalid, "
429 "ignoring assignment: %s", e + 1);
433 n->prefixlen = (unsigned char) i;
435 address = strndup(rvalue, e - rvalue);
439 address = strdup(rvalue);
444 r = net_parse_inaddr(address, &n->family, &n->in_addr);
446 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
447 "Address is invalid, ignoring assignment: %s", address);
451 if (n->family == AF_INET && !n->broadcast.s_addr)
452 n->broadcast.s_addr = n->in_addr.in.s_addr |
453 htonl(0xfffffffflu >> n->prefixlen);
460 int config_parse_label(const char *unit,
461 const char *filename,
464 unsigned section_line,
470 Network *network = userdata;
471 _cleanup_address_free_ Address *n = NULL;
481 r = address_new_static(network, section_line, &n);
485 label = strdup(rvalue);
489 if (!ascii_is_valid(label) || strlen(label) >= IFNAMSIZ) {
490 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
491 "Interface label is not ASCII clean or is too"
492 " long, ignoring assignment: %s", rvalue);