smartcard: check for the addition of new smartcard readers

gsd-smartcard currently checks for the insertion/removal of smartcards
in reader devices which where present at the time gsd-smartcard was
started, but does not account for new smartcard readers appearing
after gsd-smartcard was started.

This patch adds support for checking for the addition of new slots
(i.e. smartcard readers), which is necessary to support devices
like the Yubikey (a "reader" and a smartcard) which may be inserted
after gsd-smartcard was started.

1 files changed, 6 insertions, 1 deletions

diff --git a/plugins/smartcard/gsd-smartcard-manager.c b/plugins/smartcard/gsd-smartcard-manager.c
index acd22df8..a219e22e 100644
--- a/plugins/smartcard/gsd-smartcard-manager.c
+++ b/plugins/smartcard/gsd-smartcard-manager.c
@@ -212,7 +212,12 @@ watch_one_event_from_driver (GsdSmartcardManager       *self,
                 error_code = PORT_GetError ();
 
                 if (error_code == SEC_ERROR_NO_EVENT) {
-                    g_usleep (1 * G_USEC_PER_SEC);
+                    int old_slot_count = operation->driver->slotCount;
+                    SECMOD_UpdateSlotList (operation->driver);
+                    if (operation->driver->slotCount != old_slot_count)
+                        g_debug ("Slot count change %i -> %i", old_slot_count, operation->driver->slotCount);
+                    else
+                        g_usleep (1 * G_USEC_PER_SEC);
 
                     return TRUE;
                 }