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 XfrmInStateSeqError:
  30         Sequence error
  31         i.e. Sequence number is out of window
  32 XfrmInStateExpired:
  33         State is expired
  34 XfrmInStateMismatch:
  35         State has mismatch option
  36         e.g. UDP encapsulation type is mismatch
  37 XfrmInStateInvalid:
  38         State is invalid
  39 XfrmInTmplMismatch:
  40         No matching template for states
  41         e.g. Inbound SAs are correct but SP rule is wrong
  42 XfrmInNoPols:
  43         No policy is found for states
  44         e.g. Inbound SAs are correct but no SP is found
  45 XfrmInPolBlock:
  46         Policy discards
  47 XfrmInPolError:
  48         Policy error
  49
  50 Outbound errors
  51 ~~~~~~~~~~~~~~~
  52 XfrmOutError:
  53         All errors which is not matched others
  54 XfrmOutBundleGenError:
  55         Bundle generation error
  56 XfrmOutBundleCheckError:
  57         Bundle check error
  58 XfrmOutNoStates:
  59         No state is found
  60 XfrmOutStateProtoError:
  61         Transformation protocol specific error
  62 XfrmOutStateModeError:
  63         Transformation mode specific error
  64 XfrmOutStateSeqError:
  65         Sequence error
  66         i.e. Sequence number overflow
  67 XfrmOutStateExpired:
  68         State is expired
  69 XfrmOutPolBlock:
  70         Policy discards
  71 XfrmOutPolDead:
  72         Policy is dead
  73 XfrmOutPolError:
  74         Policy error