diff options
Diffstat (limited to 'src/machine/machine-dbus.c')
| -rw-r--r-- | src/machine/machine-dbus.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/machine/machine-dbus.c b/src/machine/machine-dbus.c index af745b6567..9c95c63e70 100644 --- a/src/machine/machine-dbus.c +++ b/src/machine/machine-dbus.c @@ -1276,6 +1276,32 @@ int bus_machine_method_open_root_directory(sd_bus_message *message, void *userda return sd_bus_reply_method_return(message, "h", fd); } +int bus_machine_method_get_uid_shift(sd_bus_message *message, void *userdata, sd_bus_error *error) { + Machine *m = userdata; + uid_t shift = 0; + int r; + + assert(message); + assert(m); + + /* You wonder why this is a method and not a property? Well, properties are not supposed to return errors, but + * we kinda have to for this. */ + + if (m->class == MACHINE_HOST) + return sd_bus_reply_method_return(message, "u", UINT32_C(0)); + + if (m->class != MACHINE_CONTAINER) + return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "UID/GID shift may only be determined for container machines."); + + r = machine_get_uid_shift(m, &shift); + if (r == -ENXIO) + return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Machine %s uses a complex UID/GID mapping, cannot determine shift", m->name); + if (r < 0) + return r; + + return sd_bus_reply_method_return(message, "u", (uint32_t) shift); +} + const sd_bus_vtable machine_vtable[] = { SD_BUS_VTABLE_START(0), SD_BUS_PROPERTY("Name", "s", NULL, offsetof(Machine, name), SD_BUS_VTABLE_PROPERTY_CONST), @@ -1293,6 +1319,7 @@ const sd_bus_vtable machine_vtable[] = { SD_BUS_METHOD("Kill", "si", NULL, bus_machine_method_kill, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("GetAddresses", NULL, "a(iay)", bus_machine_method_get_addresses, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("GetOSRelease", NULL, "a{ss}", bus_machine_method_get_os_release, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("GetUIDShift", NULL, "u", bus_machine_method_get_uid_shift, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("OpenPTY", NULL, "hs", bus_machine_method_open_pty, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("OpenLogin", NULL, "hs", bus_machine_method_open_login, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("OpenShell", "ssasas", "hs", bus_machine_method_open_shell, SD_BUS_VTABLE_UNPRIVILEGED), |