Documentation/networking/xfrm_proc.txt

   1 XFRM proc - /proc/net/xfrm_* files
   2 ==================================
   3 Masahide NAKAMURA <nakam@linux-ipv6.org>
   4
   5
   6 Transformation Statistics
   7 -------------------------
   8 xfrm_proc is a statistics shown factor dropped by transformation
   9 for developer.
  10 It is a counter designed from current transformation source code
  11 and defined like linux private MIB.
  12
  13 Inbound statistics
  14 ~~~~~~~~~~~~~~~~~~
  15 XfrmInError:
  16         All errors which is not matched others
  17 XfrmInBufferError:
  18         No buffer is left
  19 XfrmInHdrError:
  20         Header error
  21 XfrmInNoStates:
  22         No state is found
  23         i.e. Either inbound SPI, address, or IPsec protocol at SA is wrong
  24 XfrmInStateProtoError:
  25         Transformation protocol specific error
  26         e.g. SA key is wrong
  27 XfrmInStateModeError:
  28         Transformation mode specific error
  29 XfrmInSeqOutOfWindow:
  30         Sequence out of window
  31 XfrmInStateExpired:
  32         State is expired
  33 XfrmInStateMismatch:
  34         State has mismatch option
  35         e.g. UDP encapsulation type is mismatch
  36 XfrmInStateInvalid:
  37         State is invalid
  38 XfrmInTmplMismatch:
  39         No matching template for states
  40         e.g. Inbound SAs are correct but SP rule is wrong
  41 XfrmInNoPols:
  42         No policy is found for states
  43         e.g. Inbound SAs are correct but no SP is found
  44 XfrmInPolBlock:
  45         Policy discards
  46 XfrmInPolError:
  47         Policy error
  48
  49 Outbound errors
  50 ~~~~~~~~~~~~~~~
  51 XfrmOutError:
  52         All errors which is not matched others
  53 XfrmOutBundleGenError:
  54         Bundle generation error
  55 XfrmOutBundleCheckError:
  56         Bundle check error
  57 XfrmOutNoStates:
  58         No state is found
  59 XfrmOutStateProtoError:
  60         Transformation protocol specific error
  61 XfrmOutStateModeError:
  62         Transformation mode specific error
  63 XfrmOutStateExpired:
  64         State is expired
  65 XfrmOutPolBlock:
  66         Policy discards
  67 XfrmOutPolDead:
  68         Policy is dead
  69 XfrmOutPolError:
  70         Policy error