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Diffstat (limited to 'src/network/networkd-link.c')
-rw-r--r--src/network/networkd-link.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 296886daa4..444af8f6db 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -25,6 +25,7 @@
#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;
@@ -310,6 +311,46 @@ static int address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdat
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;
@@ -370,6 +411,7 @@ static void dhcp_handler(sd_dhcp_client *client, int event, void *userdata) {
assert(link);
assert(link->network);
+ assert(link->manager);
if (link->state == LINK_STATE_FAILED)
return;
@@ -410,6 +452,12 @@ static void dhcp_handler(sd_dhcp_client *client, int event, void *userdata) {
}
}
}
+
+ 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);
@@ -507,6 +555,18 @@ static void dhcp_handler(sd_dhcp_client *client, int event, void *userdata) {
}
}
+ 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);
}