1 .. SPDX-License-Identifier: GPL-2.0
3 ==================================
4 XFRM proc - /proc/net/xfrm_* files
5 ==================================
7 Masahide NAKAMURA <nakam@linux-ipv6.org>
10 Transformation Statistics
11 -------------------------
13 The xfrm_proc code is a set of statistics showing numbers of packets
14 dropped by the transformation code and why. These counters are defined
15 as part of the linux private MIB. These counters can be viewed in
23 All errors which is not matched others
33 i.e. Either inbound SPI, address, or IPsec protocol at SA is wrong
35 XfrmInStateProtoError:
36 Transformation protocol specific error
40 Transformation mode specific error
44 i.e. Sequence number is out of window
50 State has mismatch option
51 e.g. UDP encapsulation type is mismatch
57 No matching template for states
58 e.g. Inbound SAs are correct but SP rule is wrong
61 No policy is found for states
62 e.g. Inbound SAs are correct but no SP is found
71 State hasn't been fully acquired before use
74 Forward routing of a packet is not allowed
79 All errors which is not matched others
81 XfrmOutBundleGenError:
82 Bundle generation error
84 XfrmOutBundleCheckError:
90 XfrmOutStateProtoError:
91 Transformation protocol specific error
93 XfrmOutStateModeError:
94 Transformation mode specific error
98 i.e. Sequence number overflow
113 State is invalid, perhaps expired