machined: add new call OpenMachineLogin() that starts a getty in a container on a pty and returns the pty master fd to the client

This is a one-stop solution for "machinectl login", and should simplify
getting logins in containers.

1 files changed, 22 insertions, 0 deletions

diff --git a/src/machine/machined-dbus.c b/src/machine/machined-dbus.c
index 370d04a9a5..5ce091bf29 100644
--- a/src/machine/machined-dbus.c
+++ b/src/machine/machined-dbus.c
@@ -536,6 +536,27 @@ static int method_open_machine_pty(sd_bus *bus, sd_bus_message *message, void *u
         return bus_machine_method_open_pty(bus, message, machine, error);
 }
 
+static int method_open_machine_login(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+        Manager *m = userdata;
+        Machine *machine;
+        const char *name;
+        int r;
+
+        assert(bus);
+        assert(message);
+        assert(m);
+
+        r = sd_bus_message_read(message, "s", &name);
+        if (r < 0)
+                return sd_bus_error_set_errno(error, r);
+
+        machine = hashmap_get(m->machines, name);
+        if (!machine)
+                return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
+
+        return bus_machine_method_open_login(bus, message, machine, error);
+}
+
 const sd_bus_vtable manager_vtable[] = {
         SD_BUS_VTABLE_START(0),
         SD_BUS_METHOD("GetMachine", "s", "o", method_get_machine, SD_BUS_VTABLE_UNPRIVILEGED),
@@ -552,6 +573,7 @@ const sd_bus_vtable manager_vtable[] = {
         SD_BUS_METHOD("GetMachineAddresses", "s", "a(iay)", method_get_machine_addresses, SD_BUS_VTABLE_UNPRIVILEGED),
         SD_BUS_METHOD("GetMachineOSRelease", "s", "a{ss}", method_get_machine_os_release, SD_BUS_VTABLE_UNPRIVILEGED),
         SD_BUS_METHOD("OpenMachinePTY", "s", "hs", method_open_machine_pty, 0),
+        SD_BUS_METHOD("OpenMachineLogin", "s", "hs", method_open_machine_login, 0),
         SD_BUS_SIGNAL("MachineNew", "so", 0),
         SD_BUS_SIGNAL("MachineRemoved", "so", 0),
         SD_BUS_VTABLE_END