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 route_new_static(Network *network, unsigned section, Route **ret) {
32 _cleanup_route_free_ Route *route = NULL;
35 uint64_t key = section;
37 route = hashmap_get(network->routes_by_section, &key);
46 route = new0(Route, 1);
50 route->network = network;
52 LIST_PREPEND(static_routes, network->static_routes, route);
55 route->section = section;
56 hashmap_put(network->routes_by_section, &route->section, route);
65 int route_new_dynamic(Route **ret) {
66 _cleanup_route_free_ Route *route = NULL;
68 route = new0(Route, 1);
78 void route_free(Route *route) {
83 LIST_REMOVE(static_routes, route->network->static_routes, route);
86 hashmap_remove(route->network->routes_by_section,
93 int route_configure(Route *route, Link *link,
94 sd_rtnl_message_handler_t callback) {
95 _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req = NULL;
99 assert(link->manager);
100 assert(link->manager->rtnl);
101 assert(link->ifindex > 0);
102 assert(route->family == AF_INET || route->family == AF_INET6);
104 r = sd_rtnl_message_route_new(RTM_NEWROUTE, route->family, &req);
106 log_error("Could not create RTM_NEWROUTE message: %s", strerror(-r));
110 if (route->family == AF_INET)
111 r = sd_rtnl_message_append_in_addr(req, RTA_GATEWAY, &route->in_addr.in);
112 else if (route->family == AF_INET6)
113 r = sd_rtnl_message_append_in6_addr(req, RTA_GATEWAY, &route->in_addr.in6);
115 log_error("Could not append RTA_GATEWAY attribute: %s", strerror(-r));
119 if (route->dst_prefixlen) {
120 if (route->family == AF_INET)
121 r = sd_rtnl_message_append_in_addr(req, RTA_DST, &route->dst_addr.in);
122 else if (route->family == AF_INET6)
123 r = sd_rtnl_message_append_in6_addr(req, RTA_DST, &route->dst_addr.in6);
125 log_error("Could not append RTA_DST attribute: %s", strerror(-r));
129 r = sd_rtnl_message_route_set_dst_prefixlen(req, route->dst_prefixlen);
131 log_error("Could not set destination prefix length: %s", strerror(-r));
136 r = sd_rtnl_message_append_u32(req, RTA_OIF, link->ifindex);
138 log_error("Could not append RTA_OIF attribute: %s", strerror(-r));
142 r = sd_rtnl_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
144 log_error("Could not send rtnetlink message: %s", strerror(-r));
151 int config_parse_gateway(const char *unit,
152 const char *filename,
155 unsigned section_line,
161 Network *network = userdata;
162 _cleanup_route_free_ Route *n = NULL;
163 _cleanup_free_ char *route = NULL;
172 if (streq(section, "Network")) {
173 /* we are not in an Route section, so treat
174 * this as the special '0' section */
178 r = route_new_static(network, section_line, &n);
182 r = net_parse_inaddr(rvalue, &n->family, &n->in_addr);
184 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
185 "Route is invalid, ignoring assignment: %s", route);
194 int config_parse_destination(const char *unit,
195 const char *filename,
198 unsigned section_line,
204 Network *network = userdata;
205 _cleanup_route_free_ Route *n = NULL;
206 _cleanup_free_ char *address = NULL;
216 r = route_new_static(network, section_line, &n);
220 /* Destination=address/prefixlen */
223 e = strchr(rvalue, '/');
225 address = strndup(rvalue, e - rvalue);
229 address = strdup(rvalue);
234 r = net_parse_inaddr(address, &n->family, &n->dst_addr);
236 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
237 "Destination is invalid, ignoring assignment: %s", address);
245 r = safe_atou(e + 1, &i);
247 log_syntax(unit, LOG_ERR, filename, line, EINVAL,
248 "Route destination prefix length is invalid, "
249 "ignoring assignment: %s", e + 1);
253 n->dst_prefixlen = (unsigned char) i;
257 n->dst_prefixlen = 32;
260 n->dst_prefixlen = 128;