#include "networkd.h"
#include "libudev-private.h"
#include "util.h"
+#include "bus-util.h"
int link_new(Manager *manager, struct udev_device *device, Link **ret) {
_cleanup_link_free_ Link *link = NULL;
return 1;
}
+static int set_hostname_handler(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
+ int r;
+
+ r = sd_bus_message_get_errno(m);
+ if (r < 0)
+ log_warning("Could not set hostname: %s", strerror(-r));
+
+ return 1;
+}
+
+static int set_hostname(sd_bus *bus, const char *hostname) {
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ int r = 0;
+
+ assert(bus);
+ assert(hostname);
+
+ log_debug("Setting transient hostname: '%s'", hostname);
+
+ r = sd_bus_message_new_method_call(
+ bus,
+ "org.freedesktop.hostname1",
+ "/org/freedesktop/hostname1",
+ "org.freedesktop.hostname1",
+ "SetHostname",
+ &m);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(m, "sb", hostname, false);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_call_async(bus, m, set_hostname_handler, NULL, 0, NULL);
+ if (r < 0)
+ log_error("Could not set transient hostname: %s", strerror(-r));
+
+ return r;
+}
+
static int set_mtu_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
Link *link = userdata;
int r;
assert(link);
assert(link->network);
+ assert(link->manager);
if (link->state == LINK_STATE_FAILED)
return;
}
}
}
+
+ if (link->network->dhcp_hostname) {
+ r = set_hostname(link->manager->bus, "");
+ if (r < 0)
+ log_error("Failed to reset transient hostname");
+ }
}
r = sd_dhcp_client_get_address(client, &address);
if (event == DHCP_EVENT_IP_CHANGE || event == DHCP_EVENT_IP_ACQUIRE) {
_cleanup_address_free_ Address *addr = NULL;
_cleanup_route_free_ Route *rt = NULL;
- struct in_addr **nameservers;
+ struct in_addr *nameservers;
+ size_t nameservers_size;
log_struct_link(LOG_INFO, link,
"MESSAGE=%s: DHCPv4 address %u.%u.%u.%u/%u via %u.%u.%u.%u",
rt = NULL;
if (link->network->dhcp_dns) {
- r = sd_dhcp_client_get_dns(client, &nameservers);
+ r = sd_dhcp_client_get_dns(client, &nameservers, &nameservers_size);
if (r >= 0) {
r = manager_update_resolv_conf(link->manager);
if (r < 0)
}
}
+ if (link->network->dhcp_hostname) {
+ const char *hostname;
+
+ r = sd_dhcp_client_get_hostname(client, &hostname);
+ if (r >= 0) {
+ r = set_hostname(link->manager->bus, hostname);
+ if (r < 0)
+ log_error("Failed to set transient hostname "
+ "to '%s'", hostname);
+ }
+ }
+
link_enter_set_addresses(link);
}
r = sd_dhcp_client_set_callback(link->dhcp, dhcp_handler, link);
if (r < 0)
return r;
+
+ if (link->network->dhcp_mtu) {
+ r = sd_dhcp_client_set_request_option(link->dhcp, 26);
+ if (r < 0)
+ return r;
+ }
}
log_debug_link(link, "acquiring DHCPv4 lease");
- if (link->network->dhcp_mtu) {
- r = sd_dhcp_client_set_request_option(link->dhcp, 26);
- if (r < 0)
- return r;
- }
-
r = sd_dhcp_client_start(link->dhcp);
if (r < 0)
return r;
}
while (sd_rtnl_message_read(m, &type, &data) > 0) {
- if (type == IFLA_MTU && link->network->dhcp_mtu && !link->original_mtu) {
+ if (type == IFLA_MTU && link->network->dhcp &&
+ link->network->dhcp_mtu && !link->original_mtu) {
link->original_mtu = *(uint16_t *) data;
- log_debug_link(link, "saved original MTU: %" PRIu16, link->original_mtu);
+ log_debug_link(link, "saved original MTU: %" PRIu16,
+ link->original_mtu);
}
}