-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
+/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
#include "sd-dhcp6-client.h"
+#include "hostname-util.h"
#include "network-internal.h"
#include "networkd-link.h"
+#include "networkd-manager.h"
static int dhcp6_lease_address_acquired(sd_dhcp6_client *client, Link *link);
return 1;
}
-static int dhcp6_address_change(Link *link, struct in6_addr *ip6_addr,
- uint32_t lifetime_preferred, uint32_t lifetime_valid) {
- int r;
+static int dhcp6_address_change(
+ Link *link,
+ struct in6_addr *ip6_addr,
+ uint32_t lifetime_preferred,
+ uint32_t lifetime_valid) {
+
_cleanup_address_free_ Address *addr = NULL;
+ char buffer[INET6_ADDRSTRLEN];
+ int r;
r = address_new(&addr);
if (r < 0)
addr->cinfo.ifa_valid = lifetime_valid;
log_link_info(link,
- "DHCPv6 address "SD_NDISC_ADDRESS_FORMAT_STR"/%d timeout preferred %d valid %d",
- SD_NDISC_ADDRESS_FORMAT_VAL(addr->in_addr.in6),
+ "DHCPv6 address %s/%d timeout preferred %d valid %d",
+ inet_ntop(AF_INET6, &addr->in_addr.in6, buffer, sizeof(buffer)),
addr->prefixlen, lifetime_preferred, lifetime_valid);
r = address_configure(addr, link, dhcp6_address_handler, true);
sd_dhcp6_lease_reset_address_iter(lease);
while (sd_dhcp6_lease_get_address(lease, &ip6_addr,
- &lifetime_preferred,
- &lifetime_valid) >= 0) {
+ &lifetime_preferred,
+ &lifetime_valid) >= 0) {
r = dhcp6_address_change(link, &ip6_addr, lifetime_preferred, lifetime_valid);
if (r < 0)
assert(link);
assert(link->network);
- assert(link->manager);
if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return;
return;
}
- /* fall through */
+ _fallthrough_;
case SD_DHCP6_CLIENT_EVENT_INFORMATION_REQUEST:
r = dhcp6_lease_information_acquired(client, link);
if (r < 0) {
link_check_ready(link);
}
-int dhcp6_request_address(Link *link) {
+int dhcp6_request_address(Link *link, int ir) {
int r, inf_req;
bool running;
assert(link);
assert(link->dhcp6_client);
-
- r = sd_dhcp6_client_get_information_request(link->dhcp6_client, &inf_req);
- if (r < 0)
- return r;
-
- if (!inf_req)
- return 0;
+ assert(in_addr_is_link_local(AF_INET6, (const union in_addr_union*)&link->ipv6ll_address) > 0);
r = sd_dhcp6_client_is_running(link->dhcp6_client);
if (r < 0)
running = !!r;
if (running) {
+ r = sd_dhcp6_client_get_information_request(link->dhcp6_client, &inf_req);
+ if (r < 0)
+ return r;
+
+ if (inf_req == ir)
+ return 0;
+
r = sd_dhcp6_client_stop(link->dhcp6_client);
if (r < 0)
return r;
+ } else {
+ r = sd_dhcp6_client_set_local_address(link->dhcp6_client, &link->ipv6ll_address);
+ if (r < 0)
+ return r;
}
- r = sd_dhcp6_client_set_information_request(link->dhcp6_client, false);
+ r = sd_dhcp6_client_set_information_request(link->dhcp6_client, ir);
if (r < 0)
return r;
- if (running) {
- r = sd_dhcp6_client_start(link->dhcp6_client);
- if (r < 0)
+ r = sd_dhcp6_client_start(link->dhcp6_client);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+static int dhcp6_set_hostname(sd_dhcp6_client *client, Link *link) {
+ _cleanup_free_ char *hostname = NULL;
+ const char *hn;
+ int r;
+
+ assert(link);
+
+ if (!link->network->dhcp_send_hostname)
+ hn = NULL;
+ else if (link->network->dhcp_hostname)
+ hn = link->network->dhcp_hostname;
+ else {
+ r = gethostname_strict(&hostname);
+ if (r < 0 && r != -ENXIO) /* ENXIO: no hostname set or hostname is "localhost" */
return r;
+
+ hn = hostname;
}
- return 0;
+ return sd_dhcp6_client_set_fqdn(client, hn);
}
int dhcp6_configure(Link *link) {
sd_dhcp6_client *client = NULL;
int r;
+ const DUID *duid;
assert(link);
+ if (link->dhcp6_client)
+ return 0;
+
r = sd_dhcp6_client_new(&client);
if (r < 0)
return r;
if (r < 0)
goto error;
- r = sd_dhcp6_client_set_information_request(client, true);
- if (r < 0)
- goto error;
-
r = sd_dhcp6_client_set_mac(client,
(const uint8_t *) &link->mac,
sizeof (link->mac), ARPHRD_ETHER);
if (r < 0)
goto error;
- r = sd_dhcp6_client_set_index(client, link->ifindex);
+ r = sd_dhcp6_client_set_iaid(client, link->network->iaid);
+ if (r < 0)
+ goto error;
+
+ duid = link_duid(link);
+ r = sd_dhcp6_client_set_duid(client,
+ duid->type,
+ duid->raw_data_len > 0 ? duid->raw_data : NULL,
+ duid->raw_data_len);
+ if (r < 0)
+ goto error;
+
+ r = dhcp6_set_hostname(client, link);
+ if (r < 0)
+ goto error;
+
+ r = sd_dhcp6_client_set_ifindex(client, link->ifindex);
if (r < 0)
goto error;