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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2013 Tom Gundersen <teg@jklm.no>
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <net/if.h>
#include "networkd.h"
#include "utf8.h"
#include "util.h"
#include "conf-parser.h"
#include "net-util.h"
int route_new(Network *network, Route **ret) {
_cleanup_route_free_ Route *route = NULL;
route = new0(Route, 1);
if (!route)
return -ENOMEM;
route->network = network;
LIST_PREPEND(routes, network->routes, route);
*ret = route;
route = NULL;
return 0;
}
void route_free(Route *route) {
if (!route)
return;
LIST_REMOVE(routes, route->network->routes, route);
free(route);
}
int route_configure(Route *route, Link *link,
sd_rtnl_message_handler_t callback) {
_cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req = NULL;
int r;
assert(link);
assert(link->manager);
assert(link->manager->rtnl);
assert(link->ifindex > 0);
assert(route->family == AF_INET || route->family == AF_INET6);
r = sd_rtnl_message_route_new(RTM_NEWROUTE, route->family, 0, 0, 0,
RT_TABLE_MAIN, RT_SCOPE_UNIVERSE, RTPROT_BOOT,
RTN_UNICAST, 0, &req);
if (r < 0) {
log_error("Could not create RTM_NEWROUTE message: %s", strerror(-r));
return r;
}
r = sd_rtnl_message_append(req, RTA_GATEWAY, &route->in_addr);
if (r < 0) {
log_error("Could not append RTA_GATEWAY attribute: %s", strerror(-r));
return r;
}
r = sd_rtnl_message_append(req, RTA_OIF, &link->ifindex);
if (r < 0) {
log_error("Could not append RTA_OIF attribute: %s", strerror(-r));
return r;
}
r = sd_rtnl_call_async(link->manager->rtnl, req, callback, link, 0, NULL);
if (r < 0) {
log_error("Could not send rtnetlink message: %s", strerror(-r));
return r;
}
link->rtnl_messages ++;
return 0;
}
int config_parse_gateway(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) {
_cleanup_route_free_ Route *n = NULL;
_cleanup_free_ char *route = NULL;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(data);
r = route_new(userdata, &n);
if (r < 0)
return r;
r = net_parse_inaddr(rvalue, &n->family, &n->in_addr);
if (r < 0) {
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
"Route is invalid, ignoring assignment: %s", route);
return 0;
}
n = NULL;
return 0;
}
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