cvs commit: src/usr.sbin/wpa/wpa_supplicant driver_freebsd.c

[Sam Leffler]

sam         2005-07-29 05:57:28 UTC

  FreeBSD src repository

  Modified files:
    usr.sbin/wpa/wpa_supplicant driver_freebsd.c 
  Log:
  Correct problems with handling interfaces that go away (e.g. when
  a card is ejected).  wpa_supplicant requires that internal events
  for interfaces coming+going include a name but after an interface
  is removed you cannot use if_indextoname to map the interface index
  in the RTM_IFINFO (or RTM_IFANNOUNCE) msg to an interface name.
  Instead record the interface index in the driver-private data area
  and use that to filter msgs from the routing socket.  This insures
  that when we have a message to process we know the interface name.
  The end result is that we can now dispatch an "interface removed"
  event that is understood when notified than an interface went away
  (where previously the event dispatched was ignored because the
  interface name was unrecognized).
  
  This change also insures we only process events for our interface.
  
  The only downside is that we can no longer wait for an interface
  to arrive as we need to map the interface name to an index at
  startup.  This is not important as wpa_supplicant should be launched
  by devd and not include a separate mechanism for doing interface
  discovery.
  
  MFC after:      3 days
  
  Revision  Changes    Path
  1.6       +26 -10    src/usr.sbin/wpa/wpa_supplicant/driver_freebsd.c