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"
31 int address_new_static(Network *network, unsigned section, Address **ret) {
32 _cleanup_address_free_ Address *address = NULL;
35 uint64_t key = section;
36 address = hashmap_get(network->addresses_by_section, &key);
45 address = new0(Address, 1);
49 address->family = AF_UNSPEC;
51 address->network = network;
53 LIST_PREPEND(static_addresses, network->static_addresses, address);
56 address->section = section;
57 hashmap_put(network->addresses_by_section, &address->section, address);
66 int address_new_dynamic(Address **ret) {
67 _cleanup_address_free_ Address *address = NULL;
69 address = new0(Address, 1);
73 address->family = AF_UNSPEC;
81 void address_free(Address *address) {
85 if (address->network) {
86 LIST_REMOVE(static_addresses, address->network->static_addresses, address);
89 hashmap_remove(address->network->addresses_by_section,
96 int address_drop(Address *address, Link *link,
97 sd_rtnl_message_handler_t callback) {
98 _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req = NULL;
102 assert(address->family == AF_INET || address->family == AF_INET6);
104 assert(link->ifindex > 0);
105 assert(link->manager);
106 assert(link->manager->rtnl);
108 r = sd_rtnl_message_addr_new(RTM_DELADDR, link->ifindex, address->family, &req);
110 log_error("Could not allocate RTM_DELADDR message: %s",
115 r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
117 log_error("Could not set prefixlen: %s", strerror(-r));
121 if (address->family == AF_INET)
122 r = sd_rtnl_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in);
123 else if (address->family == AF_INET6)
124 r = sd_rtnl_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6);
126 log_error("Could not append IFA_LOCAL attribute: %s",
131 r = sd_rtnl_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
133 log_error("Could not send rtnetlink message: %s", strerror(-r));
140 int address_configure(Address *address, Link *link,
141 sd_rtnl_message_handler_t callback) {
142 _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req = NULL;
146 assert(address->family == AF_INET || address->family == AF_INET6);
148 assert(link->ifindex > 0);
149 assert(link->manager);
150 assert(link->manager->rtnl);
152 r = sd_rtnl_message_addr_new(RTM_NEWADDR, link->ifindex,
153 address->family, &req);
155 log_error("Could not allocate RTM_NEWADDR message: %s",
160 r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
162 log_error("Could not set prefixlen: %s", strerror(-r));
166 r = sd_rtnl_message_addr_set_flags(req, IFA_F_PERMANENT);
168 log_error("Could not set flags: %s", strerror(-r));
172 r = sd_rtnl_message_addr_set_scope(req, RT_SCOPE_UNIVERSE);
174 log_error("Could not set scope: %s", strerror(-r));
178 if (address->family == AF_INET)
179 r = sd_rtnl_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in);
180 else if (address->family == AF_INET6)
181 r = sd_rtnl_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6);
183 log_error("Could not append IFA_LOCAL attribute: %s",
188 if (address->family == AF_INET) {
189 r = sd_rtnl_message_append_in_addr(req, IFA_BROADCAST, &address->broadcast);
191 log_error("Could not append IFA_BROADCAST attribute: %s",
197 if (address->label) {
198 r = sd_rtnl_message_append_string(req, IFA_LABEL, address->label);
200 log_error("Could not append IFA_LABEL attribute: %s",
206 r = sd_rtnl_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
208 log_error("Could not send rtnetlink message: %s", strerror(-r));
215 int config_parse_dns(const char *unit,
216 const char *filename,
219 unsigned section_line,
225 Address **dns = data;
226 _cleanup_address_free_ Address *n = NULL;
235 r = address_new_dynamic(&n);
239 r = net_parse_inaddr(rvalue, &n->family, &n->in_addr);
241 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
242 "DNS address is invalid, ignoring assignment: %s", rvalue);
252 int config_parse_broadcast(const char *unit,
253 const char *filename,
256 unsigned section_line,
262 Network *network = userdata;
263 _cleanup_address_free_ Address *n = NULL;
264 _cleanup_free_ char *address = NULL;
273 r = address_new_static(network, section_line, &n);
277 r = net_parse_inaddr(address, &n->family, &n->broadcast);
279 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
280 "Broadcast is invalid, ignoring assignment: %s", address);
289 int config_parse_address(const char *unit,
290 const char *filename,
293 unsigned section_line,
299 Network *network = userdata;
300 _cleanup_address_free_ Address *n = NULL;
301 _cleanup_free_ char *address = NULL;
311 if (streq(section, "Network")) {
312 /* we are not in an Address section, so treat
313 * this as the special '0' section */
317 r = address_new_static(network, section_line, &n);
321 /* Address=address/prefixlen */
324 e = strchr(rvalue, '/');
327 r = safe_atou(e + 1, &i);
329 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
330 "Interface prefix length is invalid, "
331 "ignoring assignment: %s", e + 1);
335 n->prefixlen = (unsigned char) i;
337 address = strndup(rvalue, e - rvalue);
341 address = strdup(rvalue);
346 r = net_parse_inaddr(address, &n->family, &n->in_addr);
348 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
349 "Address is invalid, ignoring assignment: %s", address);
353 if (n->family == AF_INET && !n->broadcast.s_addr)
354 n->broadcast.s_addr = n->in_addr.in.s_addr |
355 htonl(0xfffffffflu >> n->prefixlen);
362 int config_parse_label(const char *unit,
363 const char *filename,
366 unsigned section_line,
372 Network *network = userdata;
373 _cleanup_address_free_ Address *n = NULL;
383 r = address_new_static(network, section_line, &n);
387 label = strdup(rvalue);
391 if (!ascii_is_valid(label) || strlen(label) >= IFNAMSIZ) {
392 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
393 "Interface label is not ASCII clean or is too"
394 " long, ignoring assignment: %s", rvalue);