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logind: also restrict on which session classes one cange the session type

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This commit is contained in:
Lennart Poettering
2024-01-11 17:20:38 +01:00
parent 87dc8bbd86
commit 68fbd9a09c
2 changed files with 6 additions and 0 deletions
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3
src/login/logind-session-dbus.c
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@@ -393,6 +393,9 @@ static int method_set_type(sd_bus_message *message, void *userdata, sd_bus_error
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
"Invalid session type '%s'", t);
if (!SESSION_CLASS_CAN_CHANGE_TYPE(s->class))
return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Session class doesn't support changing type.");
if (!session_is_controller(s, sd_bus_message_get_sender(message)))
return sd_bus_error_set(error, BUS_ERROR_NOT_IN_CONTROL, "You must be in control of this session to set type");

3
src/login/logind-session.h
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@@ -60,6 +60,9 @@ typedef enum SessionClass {
/* Which session classes can take control of devices */
#define SESSION_CLASS_CAN_TAKE_DEVICE(class) (IN_SET((class), SESSION_USER, SESSION_USER_EARLY, SESSION_GREETER, SESSION_LOCK_SCREEN))
/* Which session classes allow changing session types */
#define SESSION_CLASS_CAN_CHANGE_TYPE(class) (IN_SET((class), SESSION_USER, SESSION_USER_EARLY, SESSION_GREETER, SESSION_LOCK_SCREEN))
typedef enum SessionType {
SESSION_UNSPECIFIED,
SESSION_TTY,