/* SPDX-License-Identifier: LGPL-2.1+ */
/***
- This file is part of systemd.
-
Copyright 2013-2014 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 <netinet/ether.h>
static int dhcp4_route_handler(sd_netlink *rtnl, sd_netlink_message *m,
void *userdata) {
- _cleanup_link_unref_ Link *link = userdata;
+ _cleanup_(link_unrefp) Link *link = userdata;
int r;
assert(link);
}
static int link_set_dhcp_routes(Link *link) {
- struct in_addr gateway, address;
_cleanup_free_ sd_dhcp_route **static_routes = NULL;
+ bool classless_route = false, static_route = false;
+ struct in_addr gateway, address;
int r, n, i;
uint32_t table;
log_link_debug_errno(link, n, "DHCP error: could not get routes: %m");
for (i = 0; i < n; i++) {
- _cleanup_route_free_ Route *route = NULL;
+ if (static_routes[i]->option == SD_DHCP_OPTION_CLASSLESS_STATIC_ROUTE)
+ classless_route = true;
+
+ if (static_routes[i]->option == SD_DHCP_OPTION_STATIC_ROUTE)
+ static_route = true;
+ }
+
+ for (i = 0; i < n; i++) {
+ _cleanup_(route_freep) Route *route = NULL;
+
+ /* if the DHCP server returns both a Classless Static Routes option and a Static Routes option,
+ the DHCP client MUST ignore the Static Routes option. */
+ if (classless_route && static_routes[i]->option == SD_DHCP_OPTION_STATIC_ROUTE)
+ continue;
r = route_new(&route);
if (r < 0)
/* According to RFC 3442: If the DHCP server returns both a Classless Static Routes option and
a Router option, the DHCP client MUST ignore the Router option. */
- if (r >= 0 && link->dhcp4_messages <= 0) {
- _cleanup_route_free_ Route *route = NULL;
- _cleanup_route_free_ Route *route_gw = NULL;
+ if (classless_route && static_route)
+ log_link_warning(link, "Classless static routes received from DHCP server: ignoring static-route option and router option");
+
+ if (r >= 0 && !classless_route) {
+ _cleanup_(route_freep) Route *route = NULL;
+ _cleanup_(route_freep) Route *route_gw = NULL;
r = route_new(&route);
if (r < 0)
}
static int dhcp_lease_lost(Link *link) {
- _cleanup_address_free_ Address *address = NULL;
+ _cleanup_(address_freep) Address *address = NULL;
struct in_addr addr;
struct in_addr netmask;
struct in_addr gateway;
n = sd_dhcp_lease_get_routes(link->dhcp_lease, &routes);
if (n >= 0) {
for (i = 0; i < n; i++) {
- _cleanup_route_free_ Route *route = NULL;
+ _cleanup_(route_freep) Route *route = NULL;
r = route_new(&route);
if (r >= 0) {
if (r >= 0) {
r = sd_dhcp_lease_get_router(link->dhcp_lease, &gateway);
if (r >= 0) {
- _cleanup_route_free_ Route *route_gw = NULL;
- _cleanup_route_free_ Route *route = NULL;
+ _cleanup_(route_freep) Route *route_gw = NULL;
+ _cleanup_(route_freep) Route *route = NULL;
r = route_new(&route_gw);
if (r >= 0) {
static int dhcp4_address_handler(sd_netlink *rtnl, sd_netlink_message *m,
void *userdata) {
- _cleanup_link_unref_ Link *link = userdata;
+ _cleanup_(link_unrefp) Link *link = userdata;
int r;
assert(link);
link_set_dhcp_routes(link);
+ if (link->dhcp4_messages == 0) {
+ link->dhcp4_configured = true;
+ link_check_ready(link);
+ }
+
return 1;
}
struct in_addr *address,
struct in_addr *netmask,
uint32_t lifetime) {
- _cleanup_address_free_ Address *addr = NULL;
+ _cleanup_(address_freep) Address *addr = NULL;
unsigned prefixlen;
int r;
ADDRESS_FMT_VAL(gateway)),
"ADDRESS=%u.%u.%u.%u", ADDRESS_FMT_VAL(address),
"PREFIXLEN=%u", prefixlen,
- "GATEWAY=%u.%u.%u.%u", ADDRESS_FMT_VAL(gateway),
- NULL);
+ "GATEWAY=%u.%u.%u.%u", ADDRESS_FMT_VAL(gateway));
else
log_struct(LOG_INFO,
LOG_LINK_INTERFACE(link),
ADDRESS_FMT_VAL(address),
prefixlen),
"ADDRESS=%u.%u.%u.%u", ADDRESS_FMT_VAL(address),
- "PREFIXLEN=%u", prefixlen,
- NULL);
+ "PREFIXLEN=%u", prefixlen);
link->dhcp_lease = sd_dhcp_lease_ref(lease);
link_dirty(link);
return r;
}
+ if (link->network->dhcp_user_class) {
+ r = sd_dhcp_client_set_user_class(link->dhcp_client, (const char **) link->network->dhcp_user_class);
+ if (r < 0)
+ return r;
+ }
+
if (link->network->dhcp_client_port) {
r = sd_dhcp_client_set_client_port(link->dhcp_client, link->network->dhcp_client_port);
if (r < 0)
return r;
break;
}
+ case DHCP_CLIENT_ID_DUID_ONLY: {
+ /* If configured, apply user specified DUID */
+ const DUID *duid = link_duid(link);
+
+ r = sd_dhcp_client_set_duid(link->dhcp_client,
+ duid->type,
+ duid->raw_data_len > 0 ? duid->raw_data : NULL,
+ duid->raw_data_len);
+ if (r < 0)
+ return r;
+ break;
+ }
case DHCP_CLIENT_ID_MAC:
r = sd_dhcp_client_set_client_id(link->dhcp_client,
ARPHRD_ETHER,