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Diffstat (limited to 'Documentation/networking/xfrm_proc.rst')
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diff --git a/Documentation/networking/xfrm_proc.rst b/Documentation/networking/xfrm_proc.rst new file mode 100644 index 000000000..0a771c5a7 --- /dev/null +++ b/Documentation/networking/xfrm_proc.rst @@ -0,0 +1,113 @@ +.. SPDX-License-Identifier: GPL-2.0 + +================================== +XFRM proc - /proc/net/xfrm_* files +================================== + +Masahide NAKAMURA <nakam@linux-ipv6.org> + + +Transformation Statistics +------------------------- + +The xfrm_proc code is a set of statistics showing numbers of packets +dropped by the transformation code and why. These counters are defined +as part of the linux private MIB. These counters can be viewed in +/proc/net/xfrm_stat. + + +Inbound errors +~~~~~~~~~~~~~~ + +XfrmInError: + All errors which is not matched others + +XfrmInBufferError: + No buffer is left + +XfrmInHdrError: + Header error + +XfrmInNoStates: + No state is found + i.e. Either inbound SPI, address, or IPsec protocol at SA is wrong + +XfrmInStateProtoError: + Transformation protocol specific error + e.g. SA key is wrong + +XfrmInStateModeError: + Transformation mode specific error + +XfrmInStateSeqError: + Sequence error + i.e. Sequence number is out of window + +XfrmInStateExpired: + State is expired + +XfrmInStateMismatch: + State has mismatch option + e.g. UDP encapsulation type is mismatch + +XfrmInStateInvalid: + State is invalid + +XfrmInTmplMismatch: + No matching template for states + e.g. Inbound SAs are correct but SP rule is wrong + +XfrmInNoPols: + No policy is found for states + e.g. Inbound SAs are correct but no SP is found + +XfrmInPolBlock: + Policy discards + +XfrmInPolError: + Policy error + +XfrmAcquireError: + State hasn't been fully acquired before use + +XfrmFwdHdrError: + Forward routing of a packet is not allowed + +Outbound errors +~~~~~~~~~~~~~~~ +XfrmOutError: + All errors which is not matched others + +XfrmOutBundleGenError: + Bundle generation error + +XfrmOutBundleCheckError: + Bundle check error + +XfrmOutNoStates: + No state is found + +XfrmOutStateProtoError: + Transformation protocol specific error + +XfrmOutStateModeError: + Transformation mode specific error + +XfrmOutStateSeqError: + Sequence error + i.e. Sequence number overflow + +XfrmOutStateExpired: + State is expired + +XfrmOutPolBlock: + Policy discards + +XfrmOutPolDead: + Policy is dead + +XfrmOutPolError: + Policy error + +XfrmOutStateInvalid: + State is invalid, perhaps expired |