-/*-*- 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;
case SD_DHCP6_CLIENT_EVENT_STOP:
case SD_DHCP6_CLIENT_EVENT_RESEND_EXPIRE:
case SD_DHCP6_CLIENT_EVENT_RETRANS_MAX:
- log_link_warning(link, "DHCPv6 lease lost");
+ if (sd_dhcp6_client_get_lease(client, NULL) >= 0)
+ log_link_warning(link, "DHCPv6 lease lost");
link->dhcp6_configured = false;
break;
link_check_ready(link);
}
-int dhcp6_configure(Link *link, bool inf_req) {
- int r, information_request;
+int dhcp6_request_address(Link *link, int ir) {
+ int r, inf_req;
+ bool running;
- assert_return(link, -EINVAL);
+ assert(link);
+ assert(link->dhcp6_client);
+ assert(in_addr_is_link_local(AF_INET6, (const union in_addr_union*)&link->ipv6ll_address) > 0);
- link->dhcp6_configured = false;
+ r = sd_dhcp6_client_is_running(link->dhcp6_client);
+ if (r < 0)
+ return r;
+ else
+ running = !!r;
- if (link->dhcp6_client) {
- r = sd_dhcp6_client_get_information_request(link->dhcp6_client, &information_request);
- if (r < 0) {
- log_link_warning_errno(link, r, "Could not get DHCPv6 Information request setting: %m");
- goto error;
- }
+ if (running) {
+ r = sd_dhcp6_client_get_information_request(link->dhcp6_client, &inf_req);
+ if (r < 0)
+ return r;
- if (information_request && !inf_req) {
- r = sd_dhcp6_client_stop(link->dhcp6_client);
- if (r < 0) {
- log_link_warning_errno(link, r, "Could not stop DHCPv6 while setting Managed mode: %m");
- goto error;
- }
+ if (inf_req == ir)
+ return 0;
- r = sd_dhcp6_client_set_information_request(link->dhcp6_client, false);
- if (r < 0) {
- log_link_warning_errno(link, r, "Could not unset DHCPv6 Information request: %m");
- goto error;
- }
+ 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, ir);
+ if (r < 0)
+ return r;
- r = sd_dhcp6_client_start(link->dhcp6_client);
- if (r < 0 && r != -EALREADY) {
- log_link_warning_errno(link, r, "Could not restart DHCPv6: %m");
- goto error;
- }
+ r = sd_dhcp6_client_start(link->dhcp6_client);
+ if (r < 0)
+ return r;
- if (r == -EALREADY)
- link->dhcp6_configured = true;
+ return 0;
+}
- return r;
+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;
}
- r = sd_dhcp6_client_new(&link->dhcp6_client);
+ 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)
- goto error;
+ return r;
- r = sd_dhcp6_client_attach_event(link->dhcp6_client, NULL, 0);
+ r = sd_dhcp6_client_attach_event(client, NULL, 0);
if (r < 0)
goto error;
- r = sd_dhcp6_client_set_mac(link->dhcp6_client,
+ 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(link->dhcp6_client, link->ifindex);
+ r = sd_dhcp6_client_set_iaid(client, link->network->iaid);
if (r < 0)
goto error;
- r = sd_dhcp6_client_set_callback(link->dhcp6_client, dhcp6_handler,
- link);
+ 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;
- if (inf_req) {
- r = sd_dhcp6_client_set_information_request(link->dhcp6_client, true);
- if (r < 0)
- goto error;
- }
+ r = dhcp6_set_hostname(client, link);
+ log_link_warning(link, "dhcp6_set_hostname: %d", r);
+ if (r < 0)
+ return r;
- r = sd_dhcp6_client_start(link->dhcp6_client);
+ r = sd_dhcp6_client_set_ifindex(client, link->ifindex);
if (r < 0)
goto error;
- return r;
+ r = sd_dhcp6_client_set_callback(client, dhcp6_handler, link);
+ if (r < 0)
+ goto error;
+
+ link->dhcp6_client = client;
+
+ return 0;
- error:
- link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
+error:
+ sd_dhcp6_client_unref(client);
return r;
}
projects / thirdparty / systemd.git / blobdiff